Weak current College】 【go; water supply and drainage and HVAC common specifications in the mandatory provisions of the Rollup 1 --- Power By】 【China power house network.

<br> First, the heating, ventilation and air conditioning design code GB50019-2003 <br> 3.1.9 building interior personnel required minimum ventilation rate, should satisfy the following requirements: <br> 1 civil construction personnel required minimum ventilation rate according to .the existing health standards (detailed provisions); <br> 2 industrial buildings should ensure that each person not less than the new 30m3 / h flow rate. <br> 4.1.8 biographical sketches of the exterior structure of thermal resistance should be determined by .the following formula: <br> <br> Ro • min = (4.1.8-1) <br> <br> Or Ro • min = (4.1.8-1) <br> <br>-Ro • min, .-envelope of the biography of thermal resistance (/ W m2 • ° c); <br> Tn-winter indoor temperature (° c) according to the specification section 3.1.1 and 4.2.4 of adoption; <br> Tw-winter .outdoor design envelope temperature (° c), in accordance with this article uses the specification section 4.1.9; <br> A - - envelope temperature correction factor, according to this specification table 4.1.8-1; <br> △ Ty- .winter indoor temperature and surface temperature within the enclosure's temperature (℃) allowed by the specification sheet 4.1.8-2; <br> An-envelope inside surface heat transfer coefficient [W / (m2 • ¡ã c)], this specification table .4.1.8-3; <br> Rn-envelope inside surface heat exchanger thermal resistance (/ W m2 • ℃), according to this specification table .1.8-3. <br> Note: 1 this section does not apply to Windows, .balcony doors, and skylights. <br> 2 masonry wall of resistance, comparable type (4.1.8-1, 4.1.8-2) evaluates small 5%. <br> 3 external doors (balcony door) of the biography of thermal .resistance should not be less than calculating outdoor temperature by heating set maximum thermal resistance of exterior wall biography of 60%. <br> 4 when the adjacent room temperature greater than 10 ° c, in the envelope of the biography of thermal resistance should be determined .by calculation. <br> 5 when the residential buildings, hospitals and kindergartens, and other buildings used lightweight structure, its exterior is most biography thermal resistance should be consistent with the existing standards in the State of civil building thermal design code (GB50176) and .the civil construction energy conservation design standards (existing building) (JGJ26) requirements. <br> Table 4.1.8-1 temperature correction coefficient α <br> Envelope features Center α <br> Exterior walls, roofs, floors and the floor communicating with .outdoor etc 1.00 <br> Close top and communicates with outdoor air for non-heating above the floor, the basement 0.90 <br> And there is no outer doors and Windows of heating staircase adjacent wall (1 ~ 6 story building) 0.60 <br .> And there is no outer doors and Windows of heating staircase adjacent wall (7 ~ 30 story building) 0.50 <br> Non-heating above the floor, the basement walls with Windows 0.75 <br> Non-heating above the floor, the basement .walls no window is located in the outdoor terrace above 0.60 <br> Non-heating above the floor, the basement walls no window is located in the outdoor terrace when 0.40 <br> And there are external doors and Windows of the non-heating room .adjacent wall 0.70 <br> And no outer doors and Windows of the non-heating room adjacent wall 0.40 <br> Jointless wall, settlement joint wall 0.30 <br> Anti-vibration joints wall 0.70 <br> Table 2 allow temperature difference 4.1. .8 - △ ty values (℃) <br> Building and room category wall roof <br> Residential buildings, hospitals and kindergartens etc 6.04.0 <br> Office buildings, schools and clinics, and other 6.04.5 <br> Public buildings .(except for the above specified) and industrial enterprises in the auxiliary buildings (except tidal temperature room) 7.05.5 <br> Indoor air drying Workshop 10.08.0 <br> Indoor air temperature normal production plant 8.07.0 <br> Indoor air .humidity of public buildings, production plant and auxiliary buildings: <br> When not allowed wall and ceiling surface condensation is within <br> When only does not allow the ceiling inside surface condensation when tn-t1 <br> 7.00.8 (tn- .t1) <br> 0.9 (tn-t1) <br> Indoor air humidity and corrosive media production plant tn - t1tn-t1 <br> Indoor thermal capacity greater than 23w/m3, and calculate the relative humidity is not more than 50% .of the production plant 12.012.0 <br> Note: 1 indoor air humidity level of distinction that should, according to room temperature and relative humidity by table 4.1.8-4. <br> 2 communicating with outdoor air and non-heating floors .above the floor in the basement, it allows the temperature value, △ ty 2.5 ℃. <br> 3tn - the same type (4.1.8-4.1.8-1, 2); <br> T1-indoor temperature and humidity conditions .of dew-point temperature (° c). <br> 4.3.4 kindergarten heatsink must be concealed or shield. <br> 4.3.11 has frozen dangerous stairs or other place, the freezing danger should be separate legislation, the branch pipe heating .. Radiator valve shall be set up before. <br> 4.4.11 radiant floor heating heating pipe wall thickness of material and shall be handled in accordance with the choice of durable age, pipe performance, pipes, as well as the cumulative use of run .-time system water temperature, pressure and other conditions. <br> 4.5.2 using gas infrared radiant heating, must take appropriate fire prevention flameproof and ventilation, and other security measures. <br> 4.5.4 gas infrared radiator installation height, should .be based on human comfort, but should not be lower than 3m. <br> 4.5.9 from indoor air House or room, should guarantee burner required air quantity. When the burner required air quantity exceeds the room hourly 0.5 times ACH, should be .determined by the outdoor air. <br> 4.7.4 low-temperature heating cable for radiant heating and low-temperature electric heating film heating heating elements and surface temperature, should comply with national provisions in the existing standard relating to product safety requirements. < .br> According to the different conditions of use, electric heating system should be set for different types of temperature control device. <br> Insulation, keel and other accessories of selection and use of the environment, the system should meet fire safety requirements. < .br> 4.8.17 heating pipe must calculate its thermal expansion. When using pipe natural compensation does not meet the requirements, you should set the Compensator. <br> 4.9.1 new residential hot water central heating system, you should set the heat metering .and room temperature control device. <br> 5.1.10 where is equipped with mechanical ventilation system in the room, staff needed fresh air should meet the requirements of section 3.1.9; person room no mechanical ventilation systems, due to open window. < .br> 5.1.12 where one of the following situations, you should set up a separate exhaust system: <br> 1 two or more harmful substances in the mixture can cause a fire or explosion; <br> 2 mix can form more toxic or .corrosive mixture, compounds; <br> 3 mix easily make steam condensing and accumulating dust; <br> 4 dissemination of highly toxic substances of the room and equipment; <br> 5 buildings are equipped with storage of flammable and explosive substances in a separate .room or have fire-explosion-proof requirements of a separate room. <br> 5.3.3 requires air clean room, indoor should remain positive pressure. Diffusion of the dust, harmful gases, or explosive materials in the room, should remain under pressure .. <br> When asked how different or clean air and the smell of the room and side door (holes) communicates so that flow from a clean room flows more polluting. <br> 5.3.4 mechanical air supply inlet system should meet the following .requirements: <br> 1 should directly located in the outdoor air cleaner; <br> 2 should be lower than the outlet; <br> 5.3.5 for categories a, b factory air supply system, you can share the same air intake, .but should work with c, d, r production plant and auxiliary buildings and other ventilating system inlet are located; to have fire-explosion-proof requirements of ventilation system, the air intake should be set at no spark landed in a safe place, outlet .should be located in the outdoor safety service. <br> 5.3.6 where the following conditions, recirculated air should not be used: <br> 1 a and b production plant, as well as contain a, group b substances of other plants; .<br> 2 r production plant, where the air contains combustion or explosive dust, fibers, dust concentration greater than or equal to the lower explosion limit of 25%; <br> 3 contains unpleasant odor and pathogenicity containing dangerous concentration of bacteria or virus .; <br> 4 to exclude dust air local exhaust system, when the exhaust air from burning coal after purification, the dust concentration is greater than or equal to the workspace allowable concentration of 30%. <br> 5.3.12 exclude an explosive hazardous .gas, vapour and dust of local exhaust ventilation system, which should be in normal operation and accident cases, wind tube the concentration of these substances is not greater than the lower explosion limit of 50%. <br> 5.3.14 building complete exhaust system .suction outlet of the system, should satisfy the following requirements: <br> 1 is located in the upper area of the room air is used to exclude more than waste heat, humidity and harmful gases (except when the containing hydrogen), suction air outlet .on the edge of the roof-ceiling plane or distance not greater than 0.4m; <br> 2 used to exclude a mixture of hydrogen and air, suction air outlet on the edge of the roof-ceiling plane or distance not greater than 0.1m .; <br> 3 is located in the lower area of the room air, its lower edge to floor spacing is not greater than 0.3m; <br> 4 due to the building structure resulting in potentially explosive atmospheres of corner gas, diversion facilities should .be set. <br> 5.4.6 accident ventilation fan, should be in the room, easy-to-use site settings switch. <br> 5.6.10 purification in potentially explosive atmospheres of dust and debris from the dust, filter and pipes ., etc., should be set the explosive device. <br> Purification of dust explosion hazard of dry filter and filter, should lay out the negative pressure in the system section. <br> 5.7.5 under the following conditions should be used in .explosion-proof equipment: <br> 1 direct placement in a, group b substances in the workplace ventilation, air-conditioning and hot air heating equipment; <br> 2 rule out a, group b substances of ventilation equipment: <br> 3 .exclude contain combustion or explosion hazardous dust, fibre and other r substance dust concentration is greater than or equal to the lower explosion limit of 25% of the equipment. <br> 5.7.8 for armor, CPI's workplace ventilation, air-conditioning and hot .air heating of air supply devices, should not be and exhaust equipment layout in the same fan in the room. <br> Used to exclude a, group b substances in exhaust equipment, not with other systems of ventilation equipment layout in the same fan in .the room. <br> 5.8.5 transport high temperature gases in the air duct, thermal compensation measures to be taken. <br> 5.8.15 combustible gas pipeline, combustible liquid pipes and wires, drainage pipes, etc., may not pass .through the duct cavity, or along the wind tube wall laying. Combustible gas pipeline and combustible liquids pipeline, not through the fan rooms. <br> 6.2.1 subject design or preliminary design stage may use cooling load indicators necessary to estimate, with air .-conditioned zones itemized hourly of cooling load calculation. <br> 6.2.15 air-conditioning cooling load in summer, various hourly cooling load of Max. <br> Air-conditioning cooling load in summer, air conditioning, depending on the service area .of use, the type of air conditioning systems and adjustment mode, press the air-conditioned area hourly cooling load of maximum, or the air conditioning in summer cooling load of cumulative values determined and accrued to the relevant additional cooling load. <br> 6.6 ..3 air of evaporative cooling using the river water, lake water, ground water and other natural cold source, should meet the following requirements: <br> 1 water quality meets hygiene requirements; <br> 2 the temperature of the water, hardness, .and so comply with the requirements; <br>> 3 use after the backwater to reuse; <br> 4 after the backwater of groundwater use full recharge and shall not cause pollution. <br> 6.6.8 air conditioning system with refrigerant direct expansion .type air cooler, shall not use ammonia as a refrigerant. <br> 7.1.5 electric compression chiller's total installed capacity, should be the norm at 6.2.15 calculated the cooling load selected, otherwise not attached. <br> 7.1.7 select .electric compression-type units, the refrigerant must comply with the requirements of environmental protection, the adoption of transitional refrigerants, its service life exceeding China disabled timesheet (detailed provisions). <br> 7.3.4 water source heat pump water source of groundwater is .used, you should use of closed-system; to groundwater shall take measures to secure recharging, recharge does not cause pollution of groundwater resources. <br> 7.8.3, ammonia refrigeration room should meet the following requirements: <br> 1 room with .open fire heating is strictly prohibited; <br> 2 set the accident exhaust equipment, ventilation times per hour, not less than 12 times, explosion-proof fan selection. <br> 8.2.9 in flammable or explosive environments, with pneumatic actuator and .regulation of water valves, air valves. <br> 8.4.8 air conditioning system of electric heater and blower interlock, and should be set no wind power-off, over-temperature protection device; electric heater of metal duct should be ground. < .br>.