Design of heating of ventilation and air conditioning for laboratory building
Our company has completed the design of the installation of ventilation systems, heating and air conditioning HVAC in the laboratory building in Moscow.
DESIGNING VENTILATION AND AIR-CONDITIONING HEATING SYSTEMS
1.1, Working documentation is made on the basis!
- technical specifications;
- technological task;
- architectural and construction drawings;
- building codes and regulations:
SNiP 41-01-2003; SNiP 23-01-99 *; SNiP 23-02-2003,
1.2. This kit deals with the reconstruction of the ventilation and air conditioning systems of the premises of building 21,
1.3, Installation, commissioning; Adjustment and acceptance of systems in accordance with SNiP 3.05,01-85 and SNiP 12-04-2002 "Work Safety in Construction, Part 2, Construction Production",
1.4. Installation of air ducts shall be carried out taking into account the building construction structures and communications existing and new; performed by technology; electrical and plumbing drawings,
1.5, Installation and commissioning robots should be performed by qualified specialists,
2. HEATING AND HEATING.
2.1. For heating of the reconstructed room, existing water heating systems are used,
2.2. The heat carrier for systems I of the heating of the inlet systems is water with parameters 120/70 * 2 from the thermal unit of the hull,
2.3. The heat carrier for heating system II (in the cold period of the year) of the inlet systems is water with parameters 70 / 40Т from the mixing unit,
2.4. Designed pipelines of heat supply systems are laid with a slope. The magnitude and direction of the slope are shown in the diagram.
2.5. To remove air from the heat supply system at the upper points of the systems) air crowns are provided,
2.6. In the lower points of the heating system, drain crowns are provided for emptying the system,
2.7, Heat supply pipelines are running!
- with a diameter of pipes up to 50mm - from water and gas pipes according to GOST
- with a diameter over 50 mm - from electrowelded pipes according to POST 10704-92,
2.8, The main pipelines of the heat supply system are cleaned of rust; are covered with an anti-corrosion compound BT-577 and are thermally insulated!
- pipelines of the heating system I - material K-FLEX Solar NT 19mm thick;
- piping system II heating - material K-FLEX ST 9mm thick,
2.9, Pass the pipelines through the internal walls in the sleeves; Close the gaps thoroughly with non-combustible materials,
2.10, Installation of heat supply systems, according to SNiP 3.05.01-85, taking into account the existing and projected communications VK, power supply and lighting,
2.11. After installation of the system, adjust to the specified performance,
3, COOLING
3.1, The cold supply of the central and local (foncoils) air conditioning system is provided by the designed chiller (see, the XC brand kit), the coolant is water with parameters 7/12 * 0,
3.2, Designed pipelines of heating systems are laid with a slope. The magnitude and direction of the slope are shown in the diagram,
3.3, To remove air from the heating system at the highest points of the systems; air crowns are provided,
3.4. Drain valves are provided at the low points of the heat supply system to empty the system.
3.5, Piping system cooling systems are performed!
- with a diameter of pipes up to 50mm - from water and gas pipes according to GOST 3262-75 *;
- with a diameter over 50mm - from electrowelded pipes according to GOST 10704-92,
3.6, The main pipelines of the heat supply system are cleaned of rust; are coated with an anti-corrosion compound BT-577 and are thermally insulated with K-FLEX ST material with a thickness of 13mm,
3.7, Pass the pipelines through the internal walls in the sleeves; Close the gaps with non-combustible materials,
3.8, Installation of refrigeration systems to conduct according to SNiP 3.05.01-85, taking into account the existing and designed communications VK; power supply and lighting,
3.9, After installing the system, adjust to the specified performance,
4, VENTILATION
4.1. To create an air environment in the reconstructed premises; satisfying hygienic standards and technological requirements; projected supply and exhaust general ventilation with mechanical impulses
4.2. Air exchange of the room is determined by sanitary standards; normative multiples and for compensation of local suction (existing and designed),
4.3. Ventilation systems operate in a direct flow scheme. Air supply is provided in the upper zone; removal from the upper zone,
4.4. To ensure comfortable conditions at workplaces, a central and local (foncoil) air-conditioning system is envisaged,
4.5, Weza’s central air-conditioners and Galleti phoncoils are taken as ventilation equipment,
4.6. For ventilation of the impregnating compartment (pom, 309) of category 'A', independent ventilation systems are provided,
4.7. Into the tambour at the location of: category 'A', there is a constant air overpressure; in case of fire, does not turn off,
4.8, In pom, 202; 308; 309 emergency exhaust ventilation systems are provided; with automatic switching on the gas analyzers,
4.9, in industrial and administrative premises for the removal of heat gain from equipment; people; lighting and solar radiation are provided by phoncoils,
4.10. To maintain the optimum moisture parameters during the cold period of the year, the supply air is humidified in the cell humidification chamber; part of the supply installations P1 and P2.
4.11, Air ducts of systems of general ventilation are provided from galvanized steel (GOST 14918-80) with a thickness of SNiP 41-01-2003,
4.12. When crossing fire walls and overlapping, installation of fire valves KPU-1M ('Weza') is provided,
4.13, In the corridors with natural light, smoke exhaust systems are provided with smoke damper valves KDP-4-03 and roof fans BLOOD ('Weza'),
4.14, the transit sections of air ducts are covered with flame retardant OZS-MV. The places of application and thickness are indicated in the diagrams,
4.15. Installation of ventilation systems shall be carried out in accordance with SNiP 3.05.05-85, taking into account the existing and planned communications of the VC, power supply and lighting,
4.16, After mounting the gaps in the wall holes; overlapping and coatings must be embedded with non-combustible materials,
4.17. Adjust all ventilation systems after installation to the specified capacity,
5, MEASURES FOR ENSURING THE EXPLOSION OF THE EXPLOSION OF THE EXPLOSION
In accordance with the requirements of SNiP 41-01-2003, measures are provided to ensure the safe operation of the facility!
- all electrical equipment is grounded;
- when crossing fire walls and floors, installation of fire dampers is provided;
- at the 'Fire' signal, all ventilation systems are automatically switched off (except for the back-up system in the TambUR-gateway when the category 'A' is placed) and the smoke removal systems are turned on;
- gaps in the places of passage of air ducts and pipelines through partitions and ceilings are sealed with non-combustible materials,
6. AUTOMATION
To ensure and maintain the required conditions of the air environment in the premises; increase the reliability of robots systems; heat savings; electricity; and also reduction of the attendants by the Working documentation is provided!
- local control over the parameters of indoor air and the parameters of heat and coolant;
- regulation of the degree of heating / cooling of the supply air;
- protection of heaters from freezing;
- local and remote control of ventilation systems;
- alarm system failure of ventilation systems;
- automatic activation of backup systems when workers fail;
- at the 'Fire' signal, automatic shutdown of all ventilation systems (except for the backwater system in the vestibule-gate when placing the category 'A') and turning on the smoke removal systems,
7, NOISE REDUCTION EVENTS
According to SNiP 23-03-2003 to reduce noise from operating ventilation systems to values; The following measures are provided that do not exceed the permissible sound pressure levels!
- ventilation equipment is located in separate rooms;
- fans and electric motors are installed on anti-vibration bases and are separated from the air ducts with soft inserts;
- as part of the inlet installations, the installation of sound attenuators is foreseen;
- the circumferential speeds of the fans and the speeds of the air movement in the air ducts and air distribution devices are taken with regard to ensuring the optimum acoustic qualities of the designed systems,
8, MEASURES FOR THE PROTECTION OF ATMOSPHERIC AIR
In accordance with the requirements of GOST, the Working documentation provides for measures to ensure the purity of the atmospheric air of populated areas; and also air at reception openings of systems of ventilation;
- placement of air intake and exhaust devices is taken in accordance with paragraph 10.5 of SNiP 41-01-2003,