CN203116249U - Air cooling air-conditioning system provided with condenser cooling device - Google Patents

Abstract

The utility model discloses an air-cooled air-conditioning system with a condenser cooling device, which comprises a compressor, a condenser, a throttling device and an evaporator. The air inlet of the condenser is also provided with a wet curtain, and the condenser cools The device includes a water tray, located below the evaporator, and used to collect condensed water from the evaporator; a water collection tank, located below the wet curtain, and receives the condensed water from the water tray through a drain pipe; a water spray mechanism, It is located above the wet curtain and is used to spray the condensed water in the water collection tank on the wet curtain. In the utility model, the condensed water formed by condensation on the surface of the evaporator is received and collected through the water receiving tray, which solves the environmental pollution caused by the random discharge of the condensed water, and at the same time uses the low-temperature condensed water for the cooling of the wet curtain, which is not only beneficial The rational use of water resources can also strengthen the cooling effect of the wet curtain, help to cool the condenser, improve the refrigeration coefficient, increase the cooling capacity, and save electricity.

Description

Air-cooled air conditioning system with condenser cooling

technical field

The utility model relates to an air-cooled air-conditioning system, in particular to an air-cooled air-conditioning system with a condenser cooling device.

Background technique

Existing air-cooled air conditioners, including household split air conditioners, commercial air-cooled air conditioners, and large and medium-sized air-cooled heat pump air-conditioning units, are composed of four major components, a compressor, a condenser, a throttling device, and an evaporator. The pipeline circulates through the above four components in turn. Among them, the compressor compresses the gaseous refrigerant into high-temperature and high-pressure gaseous refrigerant, and then sends it to the condenser (outdoor unit) to dissipate heat and becomes a liquid refrigerant at room temperature and high pressure, so the outdoor unit blows out hot air; then the refrigerant at room temperature and high pressure Become a low-temperature and low-pressure liquid refrigerant, and immediately after entering the evaporator, the space suddenly increases and the pressure decreases, the liquid refrigerant will be vaporized and become a gaseous low-temperature refrigerant, thereby absorbing a large amount of heat from the indoor environment. When the evaporator becomes cold, the indoor unit blows out cold air;

Generally, when the air-cooled air-conditioning system is running, its condenser will discharge a large amount of heat to the outside, and in the cooling season of the air-conditioning, the outdoor temperature is high, and the condensation temperature of the air-cooled condenser is also high. Due to the same evaporation temperature, the higher the condensation temperature, the lower the efficiency of the refrigeration system. Therefore, in the design and operation of the refrigeration system, we should try to reduce the temperature of the condenser to improve the cooling effect of the refrigeration system.

For this reason, the Chinese Patent Publication No. is CN1952504A and discloses a kind of "air-cooled (heat pump) air-conditioning unit with wet curtain pre-cooling device", which includes installing a wet curtain pre-cooling device at the air inlet of the air-conditioning unit, and adopts a simple and cheap wet The curtain cooling technology pre-treats the cooling air of the air conditioning unit. When the fan of the air conditioning unit draws or blows air, it forces the high-temperature air from the outside to pass through the wet curtain first, and then cools down into cold air with high humidity. The cold air then enters the air conditioner. Condenser for cooling. In this way, the high-temperature air temperature in the hot summer climate can be reduced by 5~15°C, the power consumption of the compressor can be significantly reduced, the cooling capacity can be increased, and a better energy-saving effect can be obtained.

Among them, when the air-conditioning refrigeration system is running, because the surface temperature of the evaporator is lower than the dew point temperature of the indoor air, condensation will occur, which will generate a large amount of condensed water. For example, a household room air conditioner with a cooling capacity of 3kW runs every The condensed water produced in one hour is about 1.72kg. These condensed water are water formed by condensation of water vapor in the indoor air. When water vapor condenses into water, it will inevitably release a large amount of latent heat. At a temperature of 10°C, 1 kg of water vapor condenses into 1 kg of water, and the latent heat of liquefaction is 2519kJ/kg, and the latent heat released into the indoor air will become part of the cooling load.

At present, the general disposal method of condensed water is to discharge randomly, which will bring some potential problems, such as: causing damage to buildings, causing troubles such as neighbor conflicts, and the random discharge of condensed water is actually a kind of energy. waste.

Utility model content

In order to overcome the deficiencies of the prior art, the utility model provides a method of using low-temperature condensed water to lower the condensing temperature, so that the condensed refrigerant liquid can produce a certain degree of supercooling, thereby improving the refrigeration coefficient of the air-conditioning refrigeration system, increasing the Cooling capacity Air-cooled air conditioning system with condenser cooling.

The technical scheme of the utility model is: an air-cooled air-conditioning system with a condenser cooling device, including a compressor, a condenser, a throttling device and an evaporator, the air inlet of the condenser is also provided with a wet curtain, and the condenser The cooler includes

A water receiving tray is located below the evaporator and is used to collect condensed water from the evaporator;

The water collecting tank is located under the wet curtain, and receives the condensed water of the water receiving tray through the drain pipe;

The water spray mechanism is used to spray the condensed water in the water collection tank on the wet curtain.

The utility model accepts and collects the condensed water formed by condensation on the surface of the evaporator through the water receiving tray, and then through the drain pipe, the condensed water flows into the water collecting tank from the water receiving tray. In order to reduce the cost, the height of the water collecting tank here should be lower than the water receiving tray , so that the condensed water in the water receiving tray can naturally enter the water collecting tank through gravity, and then spray the condensed water in the water collecting tank on the wet curtain through the water spray mechanism. Due to the low temperature of the condensed water itself, when the condensed water is sprayed on the wet curtain, it can effectively improve the cooling effect of the wet curtain on the air, and at the same time, the condensed water can be effectively used to avoid unnecessary waste of energy consumption.

Preferably, the water spraying mechanism includes a shower head, located above the wet curtain; a water supply pipe, one end of which is connected to the shower head, and the other end extends into the water collection tank; a water supply pump, used to The condensed water in the water collection tank is sent to the sprinkler head through the water supply pipe.

In order to ensure that impurities can be filtered out before the condensed water leaves the water collection tank, to protect the water pump and prevent the shower head from being blocked, a water filter is provided at the water inlet of the water supply pump.

Because when the indoor humidity is low, the condensed water collected from the evaporator will be insufficient, that is, the condensed water in the water collecting tank is not enough to wet the cooling curtain, so a water supplement mechanism is also provided in the water collecting tank , the water replenishment mechanism includes a water replenishment pipe, one end of which is located in the water collection tank; a float valve is located in the water collection tank and is used to control the on-off of the water replenishment pipe. The water replenishment pipe can be connected with the external tap water pipe, and the float valve can automatically sense the water level in the water tank. When the tap water reaches the required water level, the float valve automatically disconnects the water supply pipe and stops replenishing tap water in the water collection tank. Thus, it can be ensured that the water in the water collecting tank always meets the requirements required for the normal operation of the water spraying mechanism.

In order to avoid too much water overflowing the water collection tank due to the failure of the float valve and other reasons, an overflow pipe connecting the inside and outside of the water collection tank is also provided on the water collection tank. When there is too much water, the excess water will be transported to the designated place.

Because the temperature of the condensed water is low, it is easy to absorb heat to the environment through heat transfer, so the surrounding wall of the drain pipe is covered with an insulation sleeve, thereby ensuring that the temperature of the condensed water is kept at a low temperature during the process from the water receiving tray to the water collecting tank , to avoid affecting the working effect of the wet curtain.

In order to prevent dust and impurities in the air from affecting the normal use of the wet curtain, an air filter is also included, located between the wet curtain and the air inlet of the condenser.

Sometimes the position of the water receiving tray and the water collecting tank cannot be freely selected, or the condensed water in the water receiving tray cannot be quickly transported to the water collecting tank due to other reasons, so the utility model also includes a water pump, which is located in the water receiving tray and is connected to the water collecting tank. The drain pipe is connected.

The beneficial effect of the utility model is: it can collect the condensed water produced by the evaporator, solve the environmental pollution caused by the random discharge of the condensed water, and at the same time use the low-temperature condensed water for cooling the wet curtain, which is not only beneficial to the protection of water resources Reasonable use can also strengthen the cooling effect of the wet curtain, help the cooling of the condenser, improve the refrigeration coefficient, increase the cooling capacity, and save electric energy.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model.

Fig. 2 is an enlarged view of part A of Fig. 1 .

Detailed ways

Below in conjunction with accompanying drawing, the utility model will be further described:

As shown in Figures 1 and 2, this embodiment includes four major components: a compressor 1, a condenser 2, a throttling device 3 and an evaporator 4, and the refrigerant circulates in the four major components through pipelines. In order to improve the cooling effect of the condenser 2, a wet curtain 5 is provided at the air inlet 21 of the condenser 2, and a condenser cooling device 6 for improving the cooling effect of the wet curtain is also provided.

The condenser cooling device 6 includes a water receiving pan 61, a water collecting tank 62 and a water spray mechanism 63, the water receiving pan 61 is located directly below the evaporator 4, and is used to collect the condensed water formed by condensation on the outside of the evaporator 4; The water tank 62 is located directly below the wet curtain 5, and communicates with the water receiving pan 61 through the drain pipe 64. The water collecting tank 62 is lower than the water receiving pan 61 during installation, and the condensed water flows into the water collecting tank through the drain pipe 64 through gravity 62; then, the condensed water received in the water collecting tank 62 is sprayed down from above the wet curtain 5 through the water spray mechanism 63, so as to soak and cool the wet curtain 5.

Wherein, the water spraying mechanism 63 comprises the shower head 631 that is positioned at the top of the wet curtain 5, and the shower head 631 is connected with a water supply pipe 632, and one end of the water supply pipe 632 extends to the water collection tank 62, and the water supply pipe 632 is located on the water collection tank 62. A water supply pump 633 is also provided at the inner end, and the water supply pump 633 can deliver the condensed water in the water collection tank 62 to the shower head 631 through the water supply pipe 632 . In order to ensure that impurities can be filtered out before the condensed water leaves the water collection tank 62, to protect the water supply pump 633 and prevent the shower head 631 from being blocked, a water filter (not shown) is provided at the water inlet of the water supply pump 633.

Since when the indoor humidity is low, the condensed water collected from the evaporator 4 will be insufficient, that is, the condensed water in the water collecting tank 62 is not enough to wet the cooling pad 5, so water is also provided in the water collecting tank 62. Replenishment mechanism 7, this water replenishment mechanism 7 comprises the water supply pipe 71 that is connected with running water pipe, the part that is positioned at the water collection tank 62 on the water supply pipe 71 is provided with a ball float valve 72, and this ball float valve 72 can be according to the height of the water level in the water collection box 62, It can automatically sense and control the on-off of the water supply pipe 71 . When the water level does not meet the required requirements, the ball float valve 72 makes the water replenishment pipe 71 pass through, thereby replenishing tap water in the water collection tank 62 through the water replenishment pipe 71, and when the replenished tap water reaches the required water level, the ball float valve 72 automatically makes the water replenishment Pipe 71 breaks circuit, stops replenishing tap water in the water collecting tank 62. Thus, it can be ensured that the water in the water collecting tank 62 always meets the requirements required for the normal operation of the water spray mechanism 63 . Certainly, because there is too much water overflowing the water collecting tank 62 because of reasons such as the failure of the float valve 72, so the water collecting tank 62 is also provided with an overflow pipe 73 communicating with the inside and outside of the water collecting tank 62, then when the water is too much, the excess water will It is transported to the designated place through the overflow pipe 73.

In addition, because the temperature of the condensed water is relatively low, it is easy to absorb heat from the environment through heat transfer, so a thermal insulation cover (not shown) is set on the wall around the drain pipe 64 to ensure that the condensed water flows from the water receiving tray 61 to the collector. The temperature in the process of the water tank 62 is maintained at a low temperature state, so as to avoid affecting the working effect of the wet curtain 5. The thermal insulation cover can adopt any thermal insulation material with thermal insulation effect. Before the outdoor air flows through the wet curtain 5, it should also be filtered through the air filter (not shown) between the wet curtain 5 and the air inlet 21 of the condenser 2 to remove dust and impurities in the air, which will affect the normal operation of the wet curtain 5. use.

The utility model accepts and collects the condensed water formed by condensation on the surface of the evaporator 4 through the water receiving tray 61, and then through the drain pipe 64, the condensed water flows from the water receiving tray 61 into the water collecting tank 62. In order to reduce the cost, the height of the water collecting tank 62 here is It should be lower than the water receiving tray 61, so that the condensed water in the water receiving tray 61 can naturally enter the water collecting tank 62 through gravity, and then spray the condensed water in the water collecting tank 62 on the wet Curtain 5 on. Through the condensed water generated by the evaporator 4, the environmental pollution caused by the random discharge of condensed water is solved, and at the same time, the low-temperature condensed water is used for the cooling of the wet curtain 5, which is not only beneficial to the rational use of water resources, but also strengthens the humidity. The cooling effect of the curtain 5 effectively improves the cooling effect of the wet curtain 5 on the air, improves the cooling coefficient, increases the cooling capacity, and saves electric energy.

Claims (8)

1. an air-cooled air-conditioning system with a condenser cooling device, comprising a compressor, a condenser, a throttling device and an evaporator, and a wet curtain is also provided at the air inlet of the condenser, and it is characterized in that: the condenser Cooling unit includes A water receiving tray is located below the evaporator and is used to collect condensed water from the evaporator; The water collecting tank is located under the wet curtain, and receives the condensed water of the water receiving tray through the drain pipe; The water spray mechanism is used to spray the condensed water in the water collection tank on the wet curtain. 2. The air-cooled air-conditioning system with condenser cooling device according to claim 1, characterized in that: the water spray mechanism includes A sprinkler head is located above the wet curtain; A water supply pipe, one end is connected to the sprinkler head, and the other end extends into the water collection tank; The water supply pump is used to deliver the condensed water in the water collection tank to the sprinkler head through the water supply pipe. 3. The air-cooled air-conditioning system with a condenser cooling device according to claim 2, wherein a water filter is provided at the water inlet of the water supply pump. 4. The air-cooled air-conditioning system with condenser cooling device according to claim 1, characterized in that: a water replenishment mechanism is also provided in the water collection tank, and the water replenishment mechanism includes A water supply pipe, one end of which is located in the water collection tank; The float valve is located in the water collecting tank and is used to control the on-off of the water supply pipe. 5. The air-cooled air-conditioning system with condenser cooling device according to claim 4, characterized in that: the water collecting tank is also provided with an overflow pipe connecting the inside and outside of the water collecting tank. 6. The air-cooled air-conditioning system with condenser cooling device according to claim 1, characterized in that: the surrounding wall of the drain pipe is covered with a thermal insulation sleeve. 7. The air-cooled air-conditioning system with condenser cooling device according to claim 1, further comprising an air filter located between the wet curtain and the air inlet of the condenser. 8. The air-cooled air-conditioning system with condenser cooling device according to claim 1, further comprising a water pump located in the water receiving pan and connected to the drain pipe.

Images