Evaporation cooling type novel air conditioner water cooling system

Abstract

The utility model provides an evaporation cooling type novel air conditioner water cooling system which comprises a factory workshop, at least one water curtain system is arranged on a wall on one side of the factory workshop, an air guide pipeline is arranged on the inner side of a wall opening corresponding to the at least one water curtain system, and a first air outlet pipe is arranged at the top of the end, close to the wall, of the air guide pipeline. A first fan and a first air valve are arranged in the first air outlet pipe, a second air outlet pipe is arranged at the end, away from the wall body, of the air guide pipeline, and a second fan and a second air valve are arranged in the second air outlet pipe; a gas-liquid heat exchanger is arranged in the air guide pipeline, and a water inlet and a water outlet of the gas-liquid heat exchanger are communicated with circulating chilled water through pipelines. According to the system, the gas-liquid heat exchanger is arranged on the rear side of the water curtain, in the high-temperature and high-humidity weather, moisture in humid air is reduced in a refrigeration dehumidification mode, then relatively dry air is guided into a workshop, and therefore the humidity of the space in the workshop is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a novel evaporative cooling air conditioning chilled water system. Background Technology

[0002] Due to the large size of the workshop, mechanical refrigeration air conditioning consumes a lot of electricity and is costly during the hot summer months, representing a significant expense for factory investors. Water curtain air conditioners, on the other hand, are more commonly used in factories for cooling due to their lower cost and operating expenses. However, while water curtain air conditioners are effective in hot, dry weather, their cooling performance is poor in hot, humid conditions. Summer is also characterized by frequent rainfall. Therefore, we are considering how to improve these conditions while saving costs. Summary of the Invention

[0003] This utility model provides a novel evaporative cooling air conditioning chilled water system, which sets up a gas-liquid heat exchanger behind the water curtain. In hot and humid weather, chilled water circulates in the gas-liquid heat exchanger to reduce the moisture in the humid air by means of freezing and dehumidification, and then relatively dry air is introduced into the workshop.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A novel evaporative cooling air conditioning chilled water system includes a factory workshop. At least one water curtain system is installed on one wall of the factory workshop. An air duct is installed inside the wall opening corresponding to the at least one water curtain system. A first air outlet pipe is installed at the top of the end of the air duct closest to the wall, and a first fan and a first air valve are arranged inside the first air outlet pipe. A second air outlet pipe is installed at the end of the air duct furthest from the wall, and a second fan and a second air valve are arranged inside the second air outlet pipe. A gas-liquid heat exchanger is arranged inside the air duct, located between the first and second air outlet pipes. The inlet and outlet of the gas-liquid heat exchanger are connected to circulating chilled water via pipes. A water collection tray is installed below the gas-liquid heat exchanger, and the water collection tray is drained into the water storage tank of the water curtain system via a drain pipe.

[0006] Preferably, an insulated water tank and an air-cooled chiller are installed outside the factory workshop. The insulated water tank stores chilled water for use by the gas-liquid heat exchanger. A first water pump is installed on the connecting pipe between the insulated water tank and the gas-liquid heat exchanger. A coil is installed inside the insulated water tank, and the inlet and outlet of the coil extend out of the insulated water tank. The inlet and outlet of the evaporator of the air-cooled chiller are connected to the inlet and outlet of the coil through a pipe. A second water pump is installed on the connecting pipe between the coil and the evaporator.

[0007] Preferably, a water distributor is installed above the gas-liquid heat exchanger via a water supply pipe, the other end of the water supply pipe is connected to the water storage tank of the water curtain system, and a third water pump is installed on the water supply pipe.

[0008] Preferably, the insulated water tank is provided with a water inlet and a water outlet, and both the water inlet and the water outlet are equipped with electrically controlled valves. The insulated water tank is also equipped with a liquid level sensor.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This system integrates a water curtain system and a refrigeration dehumidification method. A gas-liquid heat exchanger is set behind the water curtain. This setting can still achieve cooling using a low-cost water curtain system in hot and low-humidity weather. In hot and high-humidity weather, an air-cooled chiller and the first and second water pumps are started to circulate chilled water in the gas-liquid heat exchanger. The refrigeration dehumidification method reduces the moisture in the humid air, and then relatively dry air is introduced into the workshop, thereby reducing the humidity in the workshop space. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model.

[0011] In the diagram: 1. Air duct; 2. First fan; 3. First air valve; 4. Second fan; 5. Second air valve; 6. Gas-liquid heat exchanger; 7. Water receiving tray; 8. Water distributor; 9. Liquid level sensor. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present utility model and are not intended to limit the present utility model.

[0013] This utility model provides a novel evaporative cooling air conditioning chilled water system, including a factory workshop. At least one water curtain system is installed on one wall of the factory workshop. An air duct 1 is installed inside the wall opening corresponding to the at least one water curtain system. A first air outlet pipe is installed at the top of the end of the air duct 1 closest to the wall, and a first fan 2 and a first air valve 3 are arranged inside the first air outlet pipe. A second air outlet pipe is installed at the end of the air duct 1 furthest from the wall, and a second fan 4 and a second air valve 5 are arranged inside the second air outlet pipe. A gas-liquid heat exchanger 6 is arranged inside the air duct 1, located between the first and second air outlet pipes. The inlet and outlet of the gas-liquid heat exchanger 6 are connected to circulating chilled water through pipes. A water receiving tray 7 is installed below the gas-liquid heat exchanger 6, and the water receiving tray 7 is led into the water storage tank of the water curtain system through a drain pipe.

[0014] The water curtain system is an existing technology, mostly arranged as shown in the diagram. It includes a wet curtain, sprinklers, a water tank, a water pump, a water supply device, and electrical control devices. A water tank is placed on the outside of the wall. The wet curtain is mounted above the water tank via a bracket, and the sprinklers are located at the top of the water curtain. The water pump delivers water from the water tank to the top of the wet curtain, where it is finely sprayed onto the wet curtain by the sprinklers. With the help of a fan, when outside air passes over the porous, moist surface of the wet curtain, a large amount of moisture evaporates, lowering the temperature of the surrounding air. This cooled air is continuously introduced into the room, thus achieving a cooling effect.

[0015] The system operates as follows: During hot and humid summer weather, only the water curtain system operates, while the gas-liquid heat exchanger remains inactive (the water inside the gas-liquid heat exchanger is ordinary cooling water and does not circulate). At this time, the second fan and second air valve are closed, while the first fan and first air valve are open. The hot external air is cooled by the water curtain system and then discharged into the factory workshop through the first outlet duct, achieving a cooling effect. During hot and humid weather, the water curtain system stops operating, and the gas-liquid heat exchanger operates (i.e., the water inside is chilled water and circulates). The first fan and first air valve are closed, while the second fan and second air valve are open. The hot and humid external air remains in its original state or is slightly humidified and cooled after passing through the water curtain. It then passes through the gas-liquid heat exchanger and is frozen. Most of the water vapor in the air is condensed into water droplets that fall into the water collection tray and flow into the water storage tank, thus reducing the moisture content in the air. The drier air is then discharged into the factory workshop through the second outlet duct.

[0016] In this embodiment, the chilled water is obtained as follows: An insulated water tank and an air-cooled chiller are installed outside the factory workshop. The insulated water tank stores chilled water for use in the gas-liquid heat exchanger. A first water pump is installed on the connecting pipe between the insulated water tank and the gas-liquid heat exchanger. A coil is installed inside the insulated water tank, with the inlet and outlet of the coil extending out of the insulated water tank. The inlet and outlet of the evaporator of the air-cooled chiller are connected to the inlet and outlet of the coil via pipes, and a second water pump is installed on the connecting pipe between the coil and the evaporator. The evaporator of the air-cooled chiller is connected to the coil. The temperature of the liquid being cooled in the evaporator gradually decreases under the action of the refrigerant. Under the action of the second water pump, the liquid being cooled circulates in and out of the coil, exchanging heat with the water in the insulated water tank, causing the temperature of the water in the insulated water tank to gradually decrease, forming chilled water. Under the action of the first water pump, this chilled water enters the gas-liquid heat exchanger for circulation, thereby achieving the freezing of humid gas.

[0017] An air-cooled chiller mainly consists of an evaporator, compressor, air-cooled condenser, expansion valve, etc. Its refrigeration process is as follows: high-temperature refrigerant gas comes out of the compressor; it enters the condenser, exchanges heat with the air, releases heat and condenses into a liquid; the liquid refrigerant is depressurized through the expansion valve to form a low-temperature, low-pressure liquid; the low-temperature, low-pressure refrigerant liquid absorbs heat from the liquid being cooled in the evaporator and becomes a low-temperature, low-pressure gas, while the temperature of the liquid being cooled decreases.

[0018] The size of a factory workshop varies, so the number of water curtain systems deployed will also differ. This system can replace all water curtain systems or be deployed intermittently with them. When multiple systems are deployed, the inlets and outlets of multiple gas-liquid heat exchangers can be connected to corresponding manifolds and distribution pipes, which are then connected to insulated water tanks. The size of the insulated water tank is adjusted according to the number of gas-liquid heat exchangers connected.

[0019] Furthermore, a water distributor 8 is installed above the gas-liquid heat exchanger via a water supply pipe. The other end of the water supply pipe is connected to the water storage tank of the water curtain system, and a third water pump is installed on the water supply pipe. Under the action of the third water pump, the water mist sprayed by the water distributor falls into the water receiving tray below after passing through the gas-liquid heat exchanger, and then flows into the water storage tank for recycling. In hot and humid summer weather, when only the water curtain system is working and the gas-liquid heat exchanger is not working, in order to accelerate cooling, the water distributor sprays water onto the gas-liquid heat exchanger when the third water pump is working, and at the same time, the second fan and the second air valve are turned on. The low-temperature air cooled by the wet curtain is partly discharged through the first air outlet pipe and partly passed through the gas-liquid heat exchanger for further spray cooling, and then discharged into the factory workshop through the second air outlet pipe to accelerate the cooling time. After the temperature stabilizes, the third water pump is turned off.

[0020] In addition, the insulated water tank is equipped with a water inlet and a water outlet, both of which are fitted with electrically controlled valves. A liquid level sensor 9 is also installed on the insulated water tank. The water inlet is connected to tap water or chilled fluid via an electrically controlled valve and a pipe. When the liquid level sensor detects that the water level in the insulated water tank is below a set height, the electric valve opens to replenish water; when the water level reaches the set height, water replenishment stops. The water outlet valve is normally closed and is opened to discharge wastewater when the insulated water tank is being cleaned.

[0021] Of course, this system also includes a control system, temperature and humidity sensors, etc., which are responsible for monitoring and controlling the operating status of the entire system and making intelligent adjustments based on parameters such as indoor and outdoor temperature and humidity to ensure the efficient operation of the system.

[0022] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments. The scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A novel evaporative cooling air conditioning chilled water system, comprising a factory workshop, wherein at least one water curtain system is installed on one wall of the factory workshop, characterized in that: At least one wall opening corresponding to the water curtain system is provided with an air guide duct. A first air outlet pipe is provided at the top of the end of the air guide duct closest to the wall, and a first fan and a first air valve are arranged in the first air outlet pipe. A second air outlet pipe is provided at the end of the air guide duct furthest from the wall, and a second fan and a second air valve are arranged in the second air outlet pipe. A gas-liquid heat exchanger is arranged in the air guide duct, and the gas-liquid heat exchanger is located between the first air outlet pipe and the second air outlet pipe. The inlet and outlet of the gas-liquid heat exchanger are connected to circulating chilled water through pipes. A water receiving tray is provided below the gas-liquid heat exchanger, and the water receiving tray is led into the water storage tank of the water curtain system through a drain pipe.

2. The novel evaporative cooling chilled water system for air conditioning according to claim 1, characterized in that: An insulated water tank and an air-cooled chiller are installed outside the factory workshop. The insulated water tank stores chilled water for use by the gas-liquid heat exchanger. A first water pump is installed on the connecting pipe between the insulated water tank and the gas-liquid heat exchanger. A coil is installed inside the insulated water tank, and the inlet and outlet of the coil extend out of the insulated water tank. The inlet and outlet of the evaporator of the air-cooled chiller are connected to the inlet and outlet of the coil through a pipe. A second water pump is installed on the connecting pipe between the coil and the evaporator.

3. The novel evaporative cooling air conditioning chilled water system according to claim 1, characterized in that: A water distributor is installed above the gas-liquid heat exchanger via a water supply pipe. The other end of the water supply pipe is connected to the water storage tank of the water curtain system, and a third water pump is installed on the water supply pipe.

4. The novel evaporative cooling air conditioning chilled water system according to claim 2, characterized in that: The insulated water tank is equipped with a water inlet and a water outlet, and both the water inlet and the water outlet are equipped with electrically controlled valves. The insulated water tank is also equipped with a liquid level sensor.

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