PPR for installation of the boiler room casing. The essence and necessity of developing a work permit for equipment installation. PPR development task

A gas connection project will be necessary both during the construction of a new facility and during the reconstruction of an already built one. A project for gas supply is required both for gasification of a private home and for large industrial facilities. At the same time, the project is necessary both in the case of gas supply to a plant with the installation of technological equipment, and if the owner of the house wants to move the gas meter from one wall to another.

Projects are carried out in accordance with applicable rules and regulations, as well as the requirements of the organization that issued the technical specifications. Projects for gasification of private households are coordinated with land users on whose lands it is planned to install a gas pipeline, as well as with the gas distribution organization that issued the technical conditions.

For gasification projects in populated areas, it is necessary to undergo an examination, as well as a number of approvals from executive authorities and local governments.

WE'LL HELP DEVELOP A GAS SUPPLY PROJECT

GC "ENERGOGAZ" offers gas connection design services to individuals, organizations and government agencies.

Or use our “Gas Online” service to calculate gasification work
private residential building in real time.

ADVANTAGES OF WORKING WITH GC "ENERGOGAZ"

GC "ENERGOGAZ" is ready to offer gas connection design services to both large companies whose structure requires an individual approach to solving problems, and to private individuals who need help in gasifying their home. The interaction of all structures of our company allows us to optimize work as much as possible, offering a very flexible pricing policy. The company guarantees compliance with deadlines and bears full responsibility for the results. In case of failure to fulfill obligations - refund.

Direct supplies of equipment from manufacturers will ensure its high-quality and long-term operation. And most importantly, already at the initial stage of cooperation you will know exactly the amount of financial costs, the value of which will not change during the course of work.

CREATION OF A GAS CONNECTION PROJECT BY THE ENERGOGAZ COMPANY

  • In cooperation, the ENERGOGAZ group of companies, among other things, undertakes obligations to prepare gas connection projects. The range of services includes the development of gasification projects for private houses, industrial facilities, gas boiler houses, populated areas, the preparation of projects for internal gas equipment and its placement, coordination of projects in all necessary authorities, examination of design documentation, as well as designer’s supervision of construction. The need to create gas projects arises both for the owner of a private home and for large enterprises. It is within our capabilities to develop both installation projects gas equipment for a plant, taking into account the location and requirements for the premises, as well as projects for the installation of a gas meter, gas water heater or boiler room, gas pipe, as well as when moving or installing them.
  • Gas connection design services in our company have a very affordable price tag. Adequate pricing is based on several factors. The entire range of work is carried out by our company without the involvement of third-party contractors; equipment is supplied directly from manufacturing plants. In this case, the cost of the necessary costs is established at the initial stage of cooperation, and remains unchanged throughout the work, which is guaranteed in the relevant clause of the contract. All work on designing gas installations is carried out strictly within the established deadlines, and if this condition is not met, our company returns the amounts spent.
  • So, if you still have a question - where can you get project development, be it installation of a gas meter or gasification settlement, then the answer remains the same - it is possible to get a competent project for gas connection at an affordable price from the ENERGOGAZ Group of Companies.

Newly purchased equipment that requires installation also needs to develop a work plan. This project describes in detail the progress of work, according to which the installation of technological equipment should be carried out.

Requirements for PPR for installation of equipment

The document must be in full compliance with construction standards and regulations. Measures for organizing safety, fire safety, and labor protection must be outlined.

The project for the installation of equipment consists of:

  • An explanatory note containing all the details of the requirements for organizing the installation of equipment.
  • The calculation and descriptive part, containing unified solutions for installation, assembly methods, describes the necessary types of welding work.

In the lists of installation equipment and fixtures, the planned volumes of activities and the requirements for materials (pipelines, metal structures, etc.) are calculated. The most suitable technologies for specific installation operations are also identified. This also includes a calendar with work schedules.

  • A package of drawings and diagrams, including enlarged and technological drawings of the assembly of components and equipment, installation diagrams of lifts, equipment, scaffolding, as well as a diagram for connecting temporary electricity, water, gases and steam. The calculations carried out in the computational and descriptive part determine the required amount of energy resources.

The project for the installation of equipment must be confirmed by all parties who intend to take part in the work.

Why is it necessary to develop a work plan for equipment installation?

To optimize work, reduce its duration and reduce costs, it is advisable to use modern mechanization and technological solutions. For these purposes, any Work Production Project is created.

Installation and construction work must be completed within the agreed time frame. At the same time, it is necessary to ensure fire and environmental safety, labor protection. All this is stipulated in the PPR and is mandatory for execution.

Who should develop the PPR

Development of the Project is the responsibility of the organization installing the equipment:

    In the contract construction method, this is the General Contractor.

  • When combining the functions of the Contractor and the Customer, this is the Developer.
  • To perform specialized or individual types of work, this is a Contractor or Subcontractor.

The chief engineer or the head of the organization performing the installation approves ready-made plans for installation of equipment. Certain types of installation work require the development of separate PPR. They are approved by the contractors and must also be agreed upon with the General Contractor.

If installation work will be carried out on the territory of the enterprise, then the PPR should be agreed upon with the organization operating this territory.

According to the rules, the project for the installation of equipment must be agreed upon, approved and transferred to the construction site two months before the start of the planned installation work.

INDUSTRY STANDARD

INSTALLATION OF TECHNOLOGICAL
EQUIPMENT
AND TECHNOLOGICAL PIPELINES.

PROJECT OF WORK PRODUCTION.

DEVELOPMENT PROCEDURE
COMPOSITION AND CONTENTS

OST 36-143-88

Moscow

APPROVED by the Deputy Minister of Installation and Special construction work USSR November 28, 1985

PERFORMERS: Ph.D. tech. Sciences V.V. Kalenov (topic leader), V.D. Martynchuk, B.Ya. Moizhes, Ph.D. tech. Sci. HELL. Sokolova, S.B. Gitman

AGREED with C NIIOMTP Gosstroy USSR (V.D. Topchiy)

INDUSTRY STANDARD

INSTALLATION OF TECHNOLOGICAL EQUIPMENT AND TECHNOLOGICAL PIPELINES.

PROJECT OF WORK PRODUCTION.

DEVELOPMENT ORDER, COMPOSITION AND CONTENT.

OST 36-143-88

This standard, in accordance with SNiP 3.01.01-85, establishes the procedure for the development, composition and content of work projects (hereinafter referred to as PPR) for the installation of process equipment and process pipelines (hereinafter referred to as installation work) carried out by organizations of the USSR Ministry of Installation and Special Construction during construction, reconstruction and technical re-equipment of industrial enterprises, technological complexes, their individual queues, structures, when installing individual equipment (hereinafter referred to as facilities).

The requirements of the standard are mandatory for the customer and PPR developers, and parts of the approval are mandatory for all construction participants.

The requirements of the standard also apply to PPRs developed on orders from other ministries (departments).

1. DEVELOPMENT PROCEDURE

3) technically complex (requiring the development of special installation technology or design documentation for special devices and equipment for individual use);

4) subject to reconstruction and technical re-equipment.

Note: For technically uncomplicated objects according to clause 1.1.4, it is allowed to develop PPR by installation organizations.

1.2. PPR for objects not specified in paragraph are developed by installation organizations.

Table 1

Division of large objects into categories according to the labor intensity of installation work

Labor intensity of installation work, thousand person-days

1st

Oil refining, petrochemical, chemical, gas processing, mineral fertilizer production

Pulp and paper

Microbiological, medical, forest chemical

Coal

Ferrous and non-ferrous metallurgy

Mechanical engineering

Building materials

Lightweight, fishing, printing, agro-industrial complex objects

From 1.5 to 3.5

Note: The complexity of installation work for dividing large objects into categories should be determined on the basis of local estimates only for objects of primary production purpose.

1.3. When developing a PPR at the request of the general designer of the facility, placing an order and transferring limits for the development of the PPR are carried out in the prescribed manner.

1.4. When developing a project plan for an installation organization, the initial document for considering the inclusion of the development in the thematic plan of the design organization is the customer’s application, which must be submitted no later than 3 months in advance. until the end of the year preceding the planned one. The application indicates the development timeframe and the expected composition of the PPR, taking into account the requirements of Table. .

1.5. With consent design organization for the development of the PPR, the customer, taking into account its conclusion on the application, develops a task (Appendix).

By agreement of the parties, the task can be developed by the design organization.

1.6. The contract for the development of the project design is concluded after the assignment has been agreed upon with the design organization (if it is not its developer).

1.7. To develop the PPR, the customer transfers to the design organization the initial design, estimate and design documentation according to the agreed list, the approximate composition of which is given in the Appendix.

1.8. In the process of developing the PPR, when choosing optimal solutions for the organization and technology of installation work, in agreement with the customer, changes and additions can be made to the task, and, if necessary, adjustments are made to the timing and cost of developing the PPR. The assignment must be attached to the PPR.

2. COMPOSITION OF PPR

2.1. The composition of the PPR should be taken depending on the type of object based on the table. .

2.2. When constructing objects in stages, the composition of the PPR should first of all take into account the implementation of installation work during the construction of the following stages.

2.3. Taking into account the special conditions for the installation work, the assignment may take into account the need to develop additional sections as part of the PPR that are not provided for in the table. .

Table 2

List of documents and other materials developed as part of the PPR

Documents and materials included in the PPR

1.1.1)

1.1. 2)

1.1.3)

1.1.4)

Title page

List of documents

Explanatory note

Assembly construction plan

Schedule plan for installation work

Schedule for transfer of equipment, structures and pipelines, including complete units, for installation

Movement schedule of main mechanisms

Work schedule

Equipment installation instructions

Installation diagrams of equipment, structures, complete units

Technological maps for equipment installation

Working drawings for mounting devices, fixtures and custom-made equipment

Pipe installation instructions

Pipeline installation diagrams (including supporting structures)

Technological maps for pipeline installation

Instructions for welding work

Basic data on welded joints of pipeline lines

Statements on welding work (scope of work on welding, heat treatment and quality control of welded joints, labor intensity; welding and auxiliary materials; equipment for the work)

Technological maps for welding joints of metal and non-metallic pipelines

List of volumes of installation work (by technological units, workshops, installations)

List of installation equipment and tools

List of materials and purchased products

Scheme of temporary power supply networks

Notes: 1. Symbols: “+” - the document is subject to mandatory development; “3” - the need to develop a document is established in the task; “-” - the document is not being developed.

2. The quantity, form and composition of the documentation included in the PPR, in the case of an automated method of its (or individual sections) development, may differ from those provided for by this standard, provided that the volume of information contained in it is preserved, and also, in agreement with the customer, the PPR or its individual sections may be issued on magnetic media.

3. For facilities that require the use of complete units assembled by the installation organization, in accordance with the assignment in the PPR, solutions for the organization of work, technological maps for assembly and block installation diagrams are developed.

3. CONTENT OF THE PPR

3.1. The PPR must ensure the organization and technology of installation of equipment and pipelines, as a rule, using the complete block method.

3.2. PPR for the objects specified in paragraphs. 1.1.1), 1.1.2), 1.1.4) of this standard are developed, if provided for in the assignment, with the elaboration of options for basic solutions and calculations of their comparative economic efficiency.

3.3. This section provides General requirements to the contents of the PPR, which, by agreement with the customer, can be clarified in the assignment and (or) during the development of the PPR, taking into account the characteristics of the facility and the conditions of installation work.

brief technical description of the object;

terms of delivery of equipment and pipelines;

installation characteristics of equipment weighing more than 50 tons, indicating the features of its design position;

a list of large-sized and heavy equipment that is subject to additional production at the construction site by the manufacturer or an organization attracted by it (indicating, according to the customer, the manufacturing enterprises and the conditions and terms of additional production agreed with them by the customer);

features of process pipelines (material, operating parameters);

special conditions for welding and other pipeline installation work;

list and characteristics of special installation equipment and accessories;

solutions for the industrialization of installation work;

instructions for preparing equipment and pipelines for pre-installation thermal insulation (on the instructions of specialized design organizations).

When expanding, reconstructing and technically re-equipping existing enterprises, the following must be provided:

materials from the survey of existing production facilities, structures and structures;

list, technical characteristics and features of the location of equipment, pipelines and structures to be dismantled;

organizational and technological solutions for the manufacture and (or) expansion and supply of equipment units, mechanization of manual labor, performance of work using the method of team and collective contracting;

information on the approval of decisions made (if necessary);

data on ensuring safe working conditions;

information on organizing quality control of installation work;

features of work in winter;

security measures environment(during reconstruction and technical re-equipment - measures to protect buildings and structures from damage);

technical and economic indicators of PPR (if necessary, with variant development).

3.6. The installation construction plan shows:

plans for buildings and structures under construction, as well as existing and temporary ones;

above-ground and underground communications located in the work area and influencing the main decisions on the organization of the installation site;

location of railway (rail) tracks, roads and driveways (both existing and those to be constructed, including those allocated for use by the installation organization in the conditions of an operating enterprise), temporary roads and driveways;

sites for storage and larger assembly of equipment units, structures and pipelines;

permanent and temporary networks, made in accordance with the construction organization project (POS), used for installation needs (electricity, water supply, sewerage, compressed air, steam, etc.), with their supply to places of consumption;

places of installation of general lighting, as well as places of their connection to power sources;

locations of distribution boards for connecting welding and heat treatment stations of pipelines, indicating the location of equipment power supplies;

temporary buildings and structures of the installation organization (industrial, administrative, household, warehouse, etc.);

coverage areas and directions of movement of main installation mechanisms and vehicles;

areas of work entrusted to self-supporting teams, the size and location of team sites for storing materials and equipment;

breakdown of the facility into construction phases and technological units that determine the installation sequence.

requirements for the qualifications of welders, cutters, thermal operators, flaw detectors and engineers for welding and quality control of welded joints;

requirements for the configuration of welding stations and provision special equipment and tools of flaw detectors;

requirements for welding and auxiliary materials (including materials of foreign production and their domestic analogues), for their testing, storage and release for work;

requirements for cutting, edge preparation, assembly and tack welding;

requirements for the choice of welding method and technology, heat treatment and quality control of welded joints, indicating operating modes, work technology, control operations and marking of joints.

3.17. Welding work sheets contain information:

1) on the number and length of welds for welding, heat treatment and control during the manufacture and installation of pipelines;

2) about the need for welding and auxiliary materials during manufacturing and installation;

3) on the need for basic equipment for welding, heat treatment and control, indicating its purpose and rated electrical power.

4. APPROVAL AND APPROVAL OF PPR

climate specifics, installation before construction of the building, as well as combined, in a finished building, in an operating enterprise; with increased fire and explosion hazard, etc. In addition, they indicate the possibility of enlarging aggregated units of factory delivery, as well as assembling units at the production base of the installation organization. In the case of reconstruction and technical re-equipment, special requirements are given for the sequence of dismantling structures and utility networks (or their transfer), as well as installation work in existing workshops (number of shifts, timing and duration of shutdown of individual workshops, sections, technological lines or units);

7) proposals for organizing work using the method of brigade and collective contracting;

8) list of equipment subject to pre-installation insulation.

APPENDIX 3

SCROLL
BASIC INITIAL DESIGN, ESTIMATE AND CONSTRUCTION DOCUMENTATION TRANSFERRED BY THE CUSTOMER TO THE DESIGN ORGANIZATION FOR THE DEVELOPMENT OF PPR

1. Drawings of general types of blocks (or information on the supply of equipment as complete blocks).

2. Drawings of general types of technological structures.

3. Drawings of general types of non-standardized equipment and specifications for its supply.

4. Working (installation) drawings of process pipelines.

5. Pipeline statements by lines.

6. Specification of pipelines of the installed facility.

7. Detailed drawings of process pipelines.

8. Construction organization project (COP). Section "Installation of process equipment and process pipelines".

9. Layout of technological and handling equipment.

10. Copying from the general plan.

11. Drawings of foundations with anchor plans.

12. Building plans with main sections.

13. Equipment specification according to GOST 21.110 -82.

14. List of process pipeline lines supplied complete in the form of pipe assemblies.

15. On-site and local estimates according to SNiP 1.02.01-85.

16. Working documentation for the agreed list according to SNiP 1.02.01-85.

17. Equipment documentation in accordance with GOST 24444-87.

Notes: 1. During reconstruction and technical re-equipment, as well as during the construction of facilities based on complete imported equipment, the list of source documentation is supplemented by agreement of the parties.

2. For facilities built on the basis of imported supply of pipelines, regulatory and technical documentation for welding of pipelines from the supplier company, as well as technical annexes to the contract, are additionally transferred.

3. The original documentation is transferred according to an act indicating the documents to be returned to the customer, and, if necessary, the deadline for the customer to submit the missing documentation.

4. If necessary, the installation organization must provide the organization developing the PPR with other materials, the need for which is identified during the development of the PPR.

Main material

Welding method

Welding materials

Pipe diameter, mm

Wall thickness, mm

Number of passes

Heating

Welding modes

Requirements for quality control of connections

Diameter of filler materials, mm

Polarity

Welding current, A

Arc voltage, V

Welding speed, m/h

Gas consumption

per burner, l/min

for blowing, l/min

Heat treatment

Heating temperature, °C

Holding time, h

Maximum heating rate, °C/h

Maximum cooling rate, °C/h

special instructions

Developer

Routing for welding pipelines made of polymeric materials

Material grade, diameter and pipe wall thickness, mm

Welding method

Edge cutting

Welding temperature conditions

Butt and socket resistance welding modes

Wall thickness, mm

Height of the roller at the end of the 1st stage of reflow, mm

Time of the 2nd stage of reflow, s

Technological pause, s, no more

Upsetting pressure rise time, s, no more

Cooling time, min

Reflow pressure, MPa

Upsetting pressure, MPa

Gas rod welding

Filler material grade

Diameter of filler material, mm

Number of layers

APPENDIX 7

LIST OF INSTALLATION MEANS AND TOOLS

Name

Unit

Quantity

Note

1. Lifting equipment

2. Transport equipment

3. Mounting mechanisms

4. Rigging equipment

5. Mounting devices

6. Tools and measuring instruments

7. Protective equipment for workers

8. Standard products, including fasteners

Notes: 1. Section 1 contains the necessary: ​​bridge, truck, pneumatic, crawler, gantry, railway and tower cranes; pipelayers and forklifts; retractable and rolling scaffolding brands PVS-8, PVS-12, VTK-9, etc.; auto hydraulic lifts.

2. Section 2 contains the following: motor vehicles, wheeled tractors; car trailers, semi-trailers, trailers and tractors: railway platforms and wagons; trolleys (transfer, mold, etc.).

3. Section 3 contains: electric, manual and lever winches (mounting traction mechanism); hoists (electric and manual), cats; jacks (hydraulic, rack and pinion, screw).

4. Section 4 contains: blocks; slings; clamps, thimbles, hooks, staples, loops; sling grips, screw ties, cargo screws, etc.

5. Section 5 includes the developed: portals, chevres, mounting beams, traverses, overpasses, rail tracks, guides, etc.; carts and sleighs; disputes, struts, connections, etc.; centralizers.

6. In section 6 they are placed in the following sequence: electric and pneumatic tools (grinders, nut and screwdrivers; flaring, drilling and threading machines; scraping mechanisms; pipe cutters; riveting hammers, sharpeners, etc.; hand tools (multiplier wrenches, keys, screwdrivers, chisels, files, hammers, sledgehammers, etc.); measuring instruments (tape tapes, meters, straight edges, squares, calipers, bore gauges, probes, protractors, threaded templates, levels, theodolites, levels, sight marks, laser sights etc.).

7. Section 7 contains: inventory scaffolding; newly developed scaffolding means; safety and signal barriers, etc.

APPENDIX 8

LIST OF MATERIALS AND PURCHASED PRODUCTS

Name

Unit

Quantity

Note

Rolled metal
← Boiler rooms:Operation and maintenance of ventilation equipment and pumps Content Boiler rooms: Types of equipment repairs →

Section Contents

Equipment wears out during operation and loses its original functionality. By following operating rules, you can reduce the wear of parts. Carrying out high-quality repairs to restore the functionality of the equipment. Maintenance of process equipment is the responsibility of operating personnel, who are required to maintain operating conditions, carry out lubrication of mechanisms and other measures to ensure its uninterrupted operation.

Elimination of minor equipment defects (wear of stuffing box packings, gaskets, replacement of bolts, etc.) is carried out at the end of the production operation, when the equipment is not operating. At the same time, inspections of components and parts are carried out to identify their functionality and develop measures for the upcoming equipment repair. In the case of continuity of production processes, equipment must be stopped for inspection and maintenance at least once a month.

More complex repairs with the replacement of worn parts are carried out according to a schedule established and agreed upon by the enterprise. Random, emergency and unforeseen repairs disrupt the operation of equipment and disrupt the planned production of products. Therefore, measures to prevent equipment downtime caused by breakdowns and malfunctions of individual components and parts should occupy a major place in the work of operating personnel.

All industrial enterprises operate a system of scheduled preventive maintenance of equipment, which is a set of organizational and technical measures carried out in a planned manner for the care, supervision, maintenance and repair of equipment.

The system of planned preventive maintenance (PPR) aims to prevent premature wear of equipment parts and possible breakdowns or accidents by performing preventive work as scheduled. Timely repairs should ensure high reliability and operability of the equipment throughout the entire operational period. The PPR system provides for repairs regardless of the condition and degree of wear of the equipment, which eliminates accidental repairs and forced downtime, and increases production discipline in observing the rules for operating process equipment.

For the successful implementation of the equipment maintenance system at enterprises, a number of preparatory work is carried out, including:

Full accounting of machines, devices and communications that are subject to coverage by the PPR system;

Drawing up technical passports for equipment and systematically maintaining them;

Drawing up anti-corrosion maps for equipment and pipelines operating in aggressive environments;

Development technical specifications for equipment repair;

Drawing up specifications, albums, drawings and technical conditions for the manufacture of spare parts, replacement components and assemblies, indicating the standard service life and stock standards;

Development of consumption standards for auxiliary materials, rolled products, pipes, sheet metal and purchased products necessary to carry out equipment repairs;

Development of annual and monthly PPR plans, as well as a system for organizing and monitoring their implementation;

Development of instructions for conducting repair work related to the conduct of fire and gas hazardous work inside vessels and apparatus in which explosive and toxic substances are processed;

Development of organizational and technical measures aimed at successful completion all types of repairs, reducing costs and reducing repair time.

All issues related to the organization and execution of installation work must be thought out and developed in advance, before the start of installation, in a special document called a work production project (WPP). PPR is developed in accordance with OCT 36-143-88 “Installation of process equipment and process pipelines. Project of work production. Development order, composition and content."

The PPR defines the main method of conducting installation work; the main mechanisms for performing construction work and installing thermal mechanical equipment, the location of the larger assembly sites and equipment placement are indicated; the readiness of construction work for the start of installation of equipment is established, indicating the organization that performs it, the location and size of installation openings, as well as the timing and volume of delivery of equipment and materials for the start of installation work.

If necessary, issues of relocating power lines, communications, external pipelines, etc. are also agreed upon.

The PPR must comprehensively resolve the issues of installation of boiler units, chemical water treatment equipment, boiler-auxiliary equipment for fuel supply and ash removal, metal structures and pipelines, adjustment and commissioning of the boiler room.

The PPR includes an explanatory note, an installation master plan, a schedule for installation work, diagrams for the assembly and installation of boiler blocks, boiler auxiliary equipment and pipelines, forms for welding, rolling and installation of the boiler and equipment, picking lists, labor cost calculations.

The PPR contains a list of installation equipment, fixtures and tools necessary to perform the entire range of work on the installation of thermomechanical equipment of the boiler room, and a list additional materials necessary to implement the installation methods laid down in the PPR.

The explanatory note contains requirements for preparing the facility for the start of work on the installation of thermal mechanical equipment; requirements for organizing the installation site of the facility and instructions for its equipment; characterization of equipment installation conditions and justification for the choice of main installation mechanisms; sequence of installation work; instructions for installation of pipelines, welding work; instructions on the organization of work and placement of labor, as well as the main provisions of safety and labor protection. IN explanatory note technical and economic indicators of the accepted methods of performing work and a list of acceptance technical documentation are also provided.

Rice. 1. Installation master plan of a boiler room with four DE-16 boilers: I - boiler room building, II - chimney, III - purge well, IV - fire extinguishing tanks, V - vacuum deaerator support, VI - wet salt storage bunker, VII - accumulator tank hot water; 1 - container-type mobile assembly workshop, 2 - installer cabins, 3 - fire station, 4 - material warehouse, 5 - foreman's office, 6 - control panel room, 7 - paths for sliding the boiler, 8 - floodlight, 9 - centralized distribution container oxygen and propane, 10 - boilers: L, B, V and G - assembly and installation sites, MP - installation openings in the boiler room building; SP - welding post

The installation work schedule, in addition to installation work, includes preparatory and final commissioning work.

The linear schedule lists all major installation work, indicates the scope of each job and the required labor force, and the beginning and end of each job is marked graphically. This work schedule specifies the start and duration of each work. In accordance with the schedule, the movement of labor is determined (number and professions of workers by month). However, such schedules do not sufficiently reflect all the interrelations of production processes and are ineffective in management when changes in production arise and the need to make adjustments to the original plan. Therefore, network diagrams are used.

Network diagrams allow, in the management process, to quickly influence the progress of production based on the information received, while using computer technology to process information and select a solution. The advantage of network diagrams is that it is possible to identify reserves for reducing work time and saving costs by analyzing the schedule and its consistent improvement. Network diagrams clearly reflect the order and interconnection of the performers’ work, and also indicate the work on which the completion of the entire complex of work within the given time frame primarily depends.

Schemes for the assembly of boiler blocks, boiler auxiliary equipment and pipelines, the quality of development of which determines the success of implementing the block installation method, provide for the development of the composition of the block, the mechanisms required for its assembly, the technology for assembling and testing the block.

When developing schemes for assembling blocks, it is necessary to be guided by the following principles: make maximum use of the load-carrying capacity of the mechanism that is supposed to be used for installation; work that is most labor-intensive and inconvenient to perform at height should be carried out on the site when assembling blocks; the blocks must be rigid and convenient for slinging and installation; in appropriate cases, it is necessary to include lining in the boiler blocks.

Installation diagrams for boiler blocks, equipment and pipelines reflect the main provisions of the PPR as applied to specific case. The diagrams indicate the installation locations of the lifting mechanism with reference to the building axes or foundations for equipment; location of the block supplied under the lifting mechanism; flights where work is carried out using a lifting mechanism; places and sites from which work is carried out; slinging diagrams with mandatory indication of the block weight; places of fastening (if necessary) for building structures, indicating the loads and the date of approval. The installation diagrams also provide basic instructions on installation technology and safety precautions.

Forms for welding, rolling and installation of the boiler and boiler room equipment are filled out to increase the responsibility of performers and control the quality of work. Forms for welding and rolling are filled out during the work process, and forms for installation - after installation of the corresponding boiler unit or equipment.

Picking lists for thermal mechanical equipment, assembly blanks, pipelines and materials are drawn up in order to determine the required equipment, products and materials necessary for installation work, as well as to determine the timing of their delivery.

Calculations of labor costs for the installation of thermal mechanical equipment and pipelines of a boiler room are made on the basis of consolidated standards in order to estimate labor costs when developing a work schedule and to facilitate the work of line engineering and technical personnel when issuing tasks to teams. Costings should be designed so that they are the basis for issuing chord and premium orders. They must cover the entire scope of work performed by the installation organization, taking into account the installation methods and methods included in the work project.

The better and more fully all the issues that arise during installation work are resolved in the PPR, the higher its importance in increasing labor productivity and reducing the cost of installation work.



- Boiler room installation project


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