唐山空调维修诚信公司

The principle, composition and use of central air conditioning

中央空调设备组成：

The central air conditioning equipment consists of:

中央空调工作原理：

Working principle of central air conditioning:

中央空调系统一般主要由：制冷压缩机系统、冷媒(冷冻和冷热)循环水系统、冷却循环水系统、盘管风机系统、冷却塔风机系统等组成。

The central air conditioning system is mainly composed of refrigeration compressor system, refrigerant (freezing and cold and hot) circulating water system, cooling circulating water system, coil fan system, cooling tower fan system and so on.

冷冻循环水系统：通过冷冻水泵将常温水泵入蒸发器盘管中与冷媒进行间接热交换，这样原来的常温水就变成了低温冷冻水，冷冻水被送到各风机风口的冷却盘管中吸收盘管周围的空气热量，产生的低温空气由盘管风机吹送到各个房间，从而达到降温的目的。

Frozen circulating water system: through the freezing water pump, the normal temperature water pump into the evaporator coil is exchanged with the refrigerant indirectly, so the original normal temperature water is turned into cryogenic water, and the frozen water is sent to the cooling coil of the wind blower of each fan to absorb the heat of the air around the coil, and the produced low temperature air is blown by the coil fan. All rooms, so as to achieve the purpose of cooling.

冷却循环水系统：将常温水通过冷却水泵泵入冷凝器热交换盘管后，再将这已变热的冷却水送到冷却塔上，由冷却塔对其进行自然冷却或通过冷却塔风机对其进行喷淋式强迫风冷，与大气之间进行充分热交换，使冷却水变回常温，以便再循环使用。

Cooling water system: after pumping the constant temperature water through the cooling water pump into the heat exchange coil of the condenser, the cooled water is sent to the cooling tower. The cooling tower is cooled by the cooling tower or is cooled by the cooling tower fan. The cooling water is fully exchanged between the air and the atmosphere, so that the cooling water is changed back to normal. Temperature in order to recycle.

压缩机：

Compressor：

离心压缩机：

Centrifugal compressor:

在冬季需要制热时，中央空调系统通过冷热水泵(在夏季称为冷冻水泵)将常温水泵入蒸汽热交换器的盘管，通过与蒸汽的充分热交换后再将热水送到各楼层的风机盘管中，即可实现向用户提供供暖热风。

When the heat is needed in winter, the central air conditioning system can pump the normal temperature into the coil of the steam heat exchanger through the cold and hot water pump (called the freezing pump in summer). The hot air can be provided to the user through the full heat exchange of the steam and the hot water to the fan coil in the floor.

螺杆压缩机：

Screw compressor:

螺杆机供油系统：

Oil supply system for screw machine:

电机冷却：

Motor cooling:

1、电动机转子；2、电动机定子；3、节能器挡液网；4、集油槽；5、冷却电机液体制冷剂入口；6、回到压缩机制冷剂蒸气管。

1, motor rotor; 2, motor stator; 3, energy saving gear screen; 4, oil gathering tank; 5, cooling motor liquid refrigerant entrance; 6, return to compressor refrigerant steam pipe.

冷却塔：

Cooling tower：

冷却塔的结构：冷却塔是由本体、集水盘、消音毯、蜂窝式散热片、散水系统、挡水板、冷却风扇、扶梯等组成。

Cooling tower structure: cooling tower is composed of body, water collecting pan, muffler blanket, honeycomb radiator, water dispersion system, water baffle plate, cooling fan, escalator and so on.

冷却塔原理：是用需冷却的水经散水系统散开，蜂窝式散热片一方面是将散水管来的水进一步散均匀，另一方面是冷却风扇的风由散热片下部向上部运动对水进行冷却（与水流方向相反），经冷却的水落到集水盘中，再由下部出水口流出。

The cooling tower principle is that the cooling water is dispersed through the bulk water system. The honeycomb fin is one way to further disperse the water from the water tube. On the other hand, the cooling fan's wind is cooled from the lower part of the radiator to the upper part of the water (contrary to the flow direction). Out of the outlet.

散水系统上部还有挡水板，由于冷却风扇的风是从下部向上部运动，没有挡水板，风的流速就会将冷却水带到空气中去，造成冷却水的损耗。消音毯是装在底部集水盘上部，它的作用是减少散热片落下的水飞溅，扶梯主要是用来检查和维修冷却风扇。

The upper part of the water system also has a water retaining plate. As the wind of the cooling fan is moving from the lower to the upper part, the flow velocity of the wind will bring the cooling water to the air and cause the loss of the cooling water. The blanking blanket is mounted on the upper part of the bottom water collecting tray, and its function is to reduce the splash of water falling from the radiator. The escalator is mainly used to check and maintain the cooling fan.

空调风机柜种类：

Air conditioning air cabinet type:

工作原理:主要是吸入新风制冷后以管道式远距离送风，保障空气的清新。可以分布若干个出风口，使其新风快速流通均匀恒温的效果。

Working principle: mainly after the fresh air is refrigerated, the long distance air supply is supplied by pipes to ensure the fresh air. A number of outlets can be distributed to make the fresh air flow smoothly and evenly.

蒸发器的结构：

The structure of the evaporator:

空调组合风机柜：

Air conditioning combined wind machine cabinet:

风机柜新风开关：

New wind switch of fan cabinet:

工作原理：打开开关送入的是自然新风，关闭开关则是屋内的循环风，使其屋内的温度恒温更快。

Working principle: the switch opens the natural fresh air, and the closing switch is the circulating wind inside the house, so that the temperature inside the house is even faster.

风机盘管的清洗：

Cleaning of fan coil:

1.风机盘管开机，检查电磁阀是否有打开。

1. fan coil unit to start, check whether the solenoid valve has been opened.

2.关闭进出水闸阀，撤下靠风机盘管入水端的金属软管接头。

2. close the inlet and outlet valve, and remove the metal hose connector from the fan coil end.

3.接上自制的排水塑料软管，管接在盘管的入水口（注意先把一端插进蓄水盘的溢流口，防止没关尽的水流到吊顶上，引起以后吊顶发霉，同时也会把排水管里冲洗干净，疏通顺畅。撤下相反，把管内的水排完在取出）

3. to connect the homemade drainage plastic hose. The pipe is connected to the inlet of the coil. On the contrary, remove the water in the tube and remove it.

4.打开回水阀开关，开到最大，直到把管内的残渣冲干净。

4. turn on the return valve switch and open it to the maximum until the residue in the pipe is washed clean.

5.关闭回水阀，接上金属软管。

5. turn off the return valve and connect the metal hose.

6.如果还是堵塞，再撤下回水金属软管，接上自制排水管，打开进水阀开关，在大水冲洗完后，接上金属软管。

6. if it is still blocked, remove the backwater metal hose, connect the homemade drainage pipe, open the inlet valve switch, and connect the metal hose after washing the water.

7.打开排气阀，打开进水阀开关，排气（直到没有听到空气哧哧声音后）在打开回水阀开关继续排气。

7. open the exhaust valve, open the inlet valve switch, exhaust (until the air is heard), turn on the return valve switch and continue to exhaust.

8.关闭排气阀，检查进出水温度差不超过2℃才算正常，检查是否有漏水现象，恢复原样。收拾工具撤离现场（上下吊顶要注意安全，选好位置安全操作）

8. close the exhaust valve and check that the temperature difference between the inlet and outlet water is not more than 2 degrees. Pick up the tools to evacuate the field.