【 Weak current College 】 household air-source heat pump air conditioning system design---Power By 【 China power house network 】

Household air-source heat pump, central air conditioning terminal equipment is the host system from cold, heat exchange to the Interior of the equipment, mainly refers to the fan coil units. Fan coil unit types are: horizontal subsurface mounted fan-coil, horizontal Ming installed air blower plate Tube, vertical dark mounted fan-coil, vertical Ming-Ming fan-coil, mounted hanging air blower plate Tube, embedded air blower plate Tube, etc. Horizontal dark attire or out with fan-coil in ordinary and slim-line two, in addition, the company also developed a green-type fan-coil units, you can use a more advanced use of the room. Terminal equipment selection principles (1) the room cooling load, thermal load size; (2) the room noise requirements; (3) decoration arrangement requirements; (4) terminal equipment of parameters (refrigeration or heating capacity, noise, size, etc.); (5) bedroom, study room of fan coil model should not be more than FP-6.3, other room should not exceed FP-8. Terminal equipment selection procedures (1) calculation of cooling load and thermal load: room cooling load: room air-conditioning cold room area × = room cooling load, thermal load: room air-conditioning heat index area × room = room heat load; (2) according to cooling load, fan-coil mid-range cooling capacity to choose the fan coil model; (3) thermal load checking the model number of fan coil meets the room room winter heating requirements;　　(4) to determine terminal device model. Household air-source heat pump, central air conditioning system General composition: household air-source heat pump air conditioning system is generally divided into four parts: the host portion, pipe section, end part, power distribution and control section. Host portion including host and the corresponding annex of the pipeline; pipeline section includes: systems pipeline and the end of the exhaust systems; including: terminal equipment and the corresponding line of accessories; power distribution and control part include: distribution boards, circuit, host and Terminal control unit. Residential central air conditioning host select calculation steps are as follows: (1) determine the type of host;　　 according to residential central air conditioning system selection principles and user area, determine where air conditioning system and host type (single cold or heat pump). (2) residential summer cooling load Q l and winter thermal load Q R;　　 according to the user's dwelling building area and the user is located within the area of building cooling load, thermal load index anxiashijisuan residential cooling load and thermal load Q l R Q.　　 Q L = building area × cold indicator (w), Q R = building area × heat index (w). (3) determine the model of main machine; according to the residence of the cooling load Q l, host of nominal cooling capacity and host working coefficients press type determines the host model: a model of the host name in the refrigerating capacity × summer hosts work characteristic coefficient ≥ residential cooling load.　　 (4) If a heat pump type host, you need to check the type of heat pump in winter of actual system heat Q machine .R.　　 Host actual heating: Q-.R = the host name in the type of heat pump cooling capacity × host winter work characteristic coefficient. (5) determine the amount of electric heater heating;　　 Q Q D.R D.R = residential winter heat load Q R-host actual heating in winter, Q-.R. Note: If the calculated Q D.R ≤ 1kw, you do not need an additional electric heater.　　(6) if the air conditioning system is the adoption of the single cold (heat pump transition quarter) and fuel oil (gas) furnace or urban heating network winter heating mode, you can press the residential heat load in winter Q R select fuel (gas) furnace capacity or heating system quantity of heat. Household air-source heat pump air conditioning water system pipe system is composed of residential air source heat pump air conditioning water system consists of piping, valves,insulation, flexible joints, automatic discharge valve, water injection (valve), repair water pipes (valve), water filters, flow switch, thermometer, water. Water pipe system layout (1) as far as possible, covert; (2) reduce the decoration work load and avoid exposed pipes; (3) make full use of room ceiling set trunk pipe and hoisting fan coil; (4) minimize partial ceiling; (5) of the pipeline system to minimize local resistance, simplicity; (6) as far as possible to the exhaust device settings in the outdoors; (7) as far as possible with the program; (8) blower fan coil pipe can be used as decoration, appropriate forms of fan coil. Condensate pipe layout (1) as far as possible the condensate pipe near the discharge locations, reducing coagulation tube length; (2) the condensate pipe emissions should be approached, if nearest the point of many conditions allow, the nearest emissions; (3), sluicing condensing pipe the attention, as far as possible ensure that gradient 0.003 ~ 0.005; (4) the condensate pipe road, you can find the slope of those, but the level of laying pipes to enlarge a number. Household air-source heat pump, central air conditioning system construction construction organization program: construction preparation → equipment hoisting position → pipeline installation/distribution install → pipeline flush suppress → pipe insulation → do finishing work with decoration → system debugging.