Water curtain cooling environment-friendly air conditioner with refrigerating system

Abstract

The water curtain cooling environment-friendly air conditioner with the refrigerating system comprises an air conditioner body, an air supply fan, a water curtain, a water pan, an evaporator, a water storage tank, a compressor, a condenser, an electronic expansion valve and a condensation fan are arranged in a shell of the air conditioner body, and a plurality of air inlets and a plurality of air outlets are formed in the shell. The evaporator, the water storage tank, the water curtain and the water pan are sequentially connected through pipelines and form a loop used for condensate water circulation, a water pump is arranged on the water storage tank, and the water pan is fixed below the water curtain. Condensate water generated by the evaporator can be collected and stored through the water storage tank and guided into the water curtain through the water pump, and the compressor, the condenser, the electronic expansion valve and the evaporator are sequentially connected through the four-way valve and form a loop used for refrigerant circulation. The air conditioner can achieve a series of functions such as refrigeration and heating, continuous dehumidification, water curtain dust removal and ventilation, and is efficient, environmentally friendly and wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to water curtain air conditioning technical field more specifically, is related to a kind of water curtain cooling environmental protection air conditioner with refrigeration system. BACKGROUND

[0002] Water curtain air conditioner is a kind of air conditioning equipment using water evaporation cooling principle, its working principle is mainly to make air pass through a layer of humid water curtain, water evaporation absorbs the heat in air, to achieve the effect of cooling.The current water curtain air conditioning technology mainly has two kinds, the first kind of technology is cooled by tap water, lacks compressor refrigeration system, can only realize ventilation cooling, there are some defects, the water curtain air conditioner has no refrigeration system, if tap water temperature is high (such as ambient temperature exceeds 35 DEG C), outlet temperature will also be high, so as to effectively cool down;And winter cannot be used, because it has no heating function, low temperature tap water cannot provide heating;Water curtain air conditioner is used, humidity is relatively large and noise is too high, not conducive to user's health.Another kind of technology is that water curtain wall is used for large air volume ventilation cooling with negative pressure fan, but also has the following disadvantages, negative pressure fan does not have refrigeration function, strong exhaust can only rely on water curtain wall, and the refrigeration effect is poor;Winter heating problem still exists, even if auxiliary electric heating is increased, it can also lead to high operating cost, and is not energy-saving;In addition, a large amount of water vapor is generated in the process of strong exhaust of negative pressure fan, which causes water resource waste, and new air is introduced, which additionally introduces hot air, greatly reduces the refrigeration effect. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at overcoming the above-mentioned defects in the prior art, and provides a water curtain cooling environmental protection air conditioner with refrigeration system, which can realize refrigeration, heating, continuous dehumidification, water curtain dust removal, ventilation and other functions.

[0004] To achieve the above object, the utility model provides a water curtain cooling environmental protection air conditioner with refrigeration system, which comprises an air conditioner body, a plurality of air inlets and a plurality of air outlets are formed on the shell of the air conditioner body, the air outlet part of the air supply fan is communicated with one of the air outlets, the evaporator, the water tank, the water curtain and the water collecting tray are sequentially connected by pipelines and form a loop for circulating condensed water, the water pump is arranged on the water tank, the water collecting tray is fixedly arranged below the water curtain, the condensed water generated by the evaporator can be collected and stored in the water tank and introduced into the water curtain through the water pump, the compressor, the condenser, the electronic expansion valve and the evaporator are sequentially connected by a four-way valve and form a loop for circulating refrigerant, and the condensing fan is installed on the shell and communicated with the other air outlet.

[0005] Preferably, the water tray is horizontally fixed inside the air conditioner body, dividing the interior of the air conditioner body into upper and lower parts. The air supply fan, evaporator and water curtain are all installed inside the upper part of the air conditioner body. The water curtain is located between the evaporator and one of the air inlets on the outer casing. The water storage tank, compressor, condenser, electronic expansion valve and condenser fan are all installed inside the lower part of the air conditioner body.

[0006] Preferably, a water-blocking plate is vertically installed in the middle of the water receiving tray, dividing the water receiving tray into front and rear sides. A drain interface is provided at the bottom of the front side of the water receiving tray, and a through hole for pipes to pass through is opened on the rear end face of the water receiving tray. The evaporator and water curtain are both installed above the front side of the water receiving tray, and the air supply fan is fixedly installed on the top rear side of the water receiving tray by a shock-absorbing pad.

[0007] Preferably, the system also includes a gas-liquid separator, the inlet of which is connected to the outlet of the condenser via a pipe, and the outlet of which is connected to the inlet of the compressor via a pipe.

[0008] Preferably, the system also includes an air duct, the air inlet of which is fixedly connected to the air outlet at the top of the housing and is opposite to the air outlet of the blower.

[0009] Preferably, the condenser has a U-shaped cross-section.

[0010] Preferably, the condenser is configured as a copper tube finned heat exchanger, a shell and tube heat exchanger, or a water-fluorine heat exchanger.

[0011] Preferably, the compressor is configured as a cryogenic enthalpy-increasing compressor.

[0012] Preferably, the front sealing mesh plate of the outer casing is fixedly connected to the front of the water curtain, and the side mesh plate and the back mesh plate of the outer casing are fixedly connected to one side and the back side of the condenser, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model has a novel structure and reasonable design. When the refrigeration system is working, a large amount of condensate generated by the evaporator flows back to the water storage tank for collection, and is then pumped onto the paper curtain for circulating cooling. By using the self-generated condensate to cool the water curtain, it can realize a series of functions such as circulating refrigeration, continuous dehumidification, water curtain dust removal, and ventilation. Through the heat absorption or heat release physical changes of the refrigerant, it can realize the functions of cooling in summer and heating in winter. It has high operating efficiency, wide applicability, and low cost.

[0015] 2. This utility model effectively solves the problem of excessively high compressor return air temperature under high temperature environment. It uses the condensate (below 20℃) generated by the air conditioner body during operation to cool down the air, which not only reduces the return air temperature, but also reduces the evaporation temperature difference, greatly improves the evaporator efficiency and cooling capacity, and enhances the energy efficiency of the refrigeration system.

[0016] 3. The air conditioner unit of this invention can still operate normally under environmental conditions of 55℃, avoiding compressor overheating protection caused by high temperatures and solving the problem of air conditioning not working properly in hot summers. Combined with water curtain cooling technology, it significantly reduces energy consumption and greatly improves cooling efficiency. In addition, while achieving comprehensive energy saving, it can achieve zero emissions and causes no pollution to the environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is an exploded schematic diagram of an environmentally friendly air conditioner with a cooling system and a water curtain cooling mechanism provided in this embodiment of the utility model.

[0019] Figure 2 This is a partial structural cross-sectional view of the water curtain cooling environmentally friendly air conditioner with a refrigeration system provided in this embodiment of the utility model. Figure 1 ;

[0020] Figure 3 This is a partial structural cross-sectional view of the water curtain cooling environmentally friendly air conditioner with a refrigeration system provided in this embodiment of the utility model. Figure 2 ;

[0021] Figure 4 This is a schematic diagram of the top structure of the water receiving tray of the water curtain cooling environmentally friendly air conditioner with a refrigeration system provided in this embodiment of the utility model.

[0022] Figure 5 This is a schematic diagram of the bottom structure of the water receiving tray of the water curtain cooling environmental air conditioner with a refrigeration system provided in this embodiment of the utility model;

[0023] Figure 6 This is a front view structural diagram of the water curtain cooling environmentally friendly air conditioner with a refrigeration system provided in this embodiment of the utility model;

[0024] Figure 7 This is a partial exploded view of the structure of the water curtain cooling environmentally friendly air conditioner with a refrigeration system provided in this embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the bottom structure of the water curtain cooling environmentally friendly air conditioner with a refrigeration system provided in this embodiment of the utility model. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] Please refer to Figure 1 This utility model provides an environmentally friendly air conditioner with a water curtain cooling system, including an air conditioner body 1. The outer shell 11 of the air conditioner body 1 is provided with components such as a blower 2, a water curtain 3, a water receiving tray 4, an evaporator 5, a water storage tank 6, a compressor 7, a condenser 8, an electronic expansion valve, a condenser fan 9, a gas-liquid separator 12, an electrical control box 14, and an economizer 15. The components of this embodiment will be described in detail below with reference to the accompanying drawings.

[0028] like Figures 1 to 3 As shown, the outer casing 11 has several air inlets and several air outlets. The air outlet of the blower 2 is connected to one of the air outlets. The evaporator 5, water tank 6, water curtain 3, and water collection tray 4 are connected in sequence through pipes to form a loop for condensate circulation. A water pump 61 is installed on the water tank 6. The water collection tray 4 is fixedly installed below the water curtain 3. The condensate generated by the evaporator 5 can be collected and stored in the water tank 6 and introduced into the water curtain 3 through the water pump 61. The compressor 7, condenser 8, electronic expansion valve, and evaporator 5 are connected in sequence through a four-way valve to form a loop for refrigerant circulation. The condenser fan 9 is installed on the outer casing 11 and connected to another air outlet.

[0029] In practice, high-temperature air (hot air) enters the water curtain 3 through the air inlet. When the refrigeration system is working, the evaporator 5 can condense a large amount of condensate from the humidity in the air. Since the evaporation temperature of the refrigeration system is generally between 7-12℃, the temperature of the condensate will not exceed 20℃. It flows back to the water storage tank 6 for collection, and then is pumped onto the paper curtain 3 by the water pump 61 for cooling. At the same time, the water is cooled again as it passes through the water curtain.

[0030] The outer casing 11 is equipped with multiple air inlets and outlets. By optimizing the air duct design, air circulation is enhanced, and the energy efficiency of the air conditioner is improved. The refrigerant in the evaporator 5 absorbs heat from the air through evaporation, thereby reducing the temperature of the air passing through the evaporator 5. The compressor 7 is used to drive the refrigerant to circulate within the system, improving the overall efficiency of the refrigeration system and achieving rapid cooling. The water pump 61 can be configured as a small lift water pump, which can provide the flow rate and head required for the operation of the water curtain 3.

[0031] This embodiment utilizes a four-way valve to switch the refrigerant flow direction. Under the operation of the entire refrigeration system, the physical changes of the refrigerant (heat absorption and release) enable the air conditioner to perform cooling in summer and heating in winter. Simultaneously, during system operation, the refrigerant temperature rapidly decreases within the evaporator 5, causing water vapor in the air to condense quickly, producing a large amount of condensate that flows out, significantly reducing the humidity of the air passing through the evaporator 2 and achieving a dehumidification effect.

[0032] Furthermore, the above-mentioned refrigeration process is a continuous cycle. The air must pass through the water curtain 3 for initial cooling before entering the evaporator 5 for dehumidification. This avoids the refrigeration efficiency or even the operation of the air conditioner itself being affected by excessive humidity in the hot and humid indoor or outdoor air, thus ensuring the dehumidification efficiency and continuous operation of the evaporator 5.

[0033] Since the hot air returning to the room first passes through the water curtain 3, dust and other airborne particles also enter the water curtain, which has a natural dust removal function. In spring and autumn, when the cooling system does not need to be turned on, the ventilation function can be activated by starting the air supply fan 2, which also provides some ventilation and air exchange for the room. The air supply fan 2 is designed with a large air volume and high air pressure, which greatly improves ventilation efficiency and increases the number of air exchanges, thus fully realizing the integration of dust removal and ventilation.

[0034] In this embodiment, a duct 10 may also be included. The air inlet of the duct 10 is fixedly connected to the air outlet at the top of the housing 11 and is opposite to the air outlet of the blower 2. The duct 10 can guide the cooling air passing through the blower 2 into the room to reduce the indoor ambient temperature.

[0035] Preferably, it may also include a gas-liquid separator 12, the inlet of which can be connected to the outlet of the condenser 8 via a pipe, and the outlet of the gas-liquid separator 12 connected to the inlet of the compressor 7 via a pipe.

[0036] like Figure 4 and Figure 5As shown, the water tray 4 is horizontally fixed inside the air conditioner body 1, dividing the interior of the air conditioner body 1 into upper and lower parts (vertical structure). The air supply fan 2, evaporator 5, and water curtain 3 are all installed inside the upper part of the air conditioner body 1. The water curtain 3 is located between the evaporator 5 and one of the air inlets on the outer casing 11. The water storage tank 6, compressor 7, condenser 8, electronic expansion valve, and condenser fan 9 are all installed inside the lower part of the air conditioner body 1. Of course, in other embodiments, the technical principle of this embodiment is also applicable to horizontal structures.

[0037] Specifically, a water-blocking plate 41 is vertically installed in the middle of the water receiving tray 4, dividing the water receiving tray 4 into front and rear sides. A drain interface 42 is provided at the bottom of the front side of the water receiving tray 4, and a through hole 43 for pipes to pass through is opened on the rear end face of the water receiving tray 4. The evaporator 5 and the water curtain 3 are both installed on the upper front side of the water receiving tray 4, and the air supply fan 2 is fixedly installed on the top rear side of the water receiving tray 4 by means of a shock-absorbing pad 21.

[0038] In order to increase the effective heat exchange area of ​​the condenser 8, the cross-sectional shape of the condenser 8 can be U-shaped.

[0039] like Figure 6 and Figure 7 As shown, the front cover plate 111 of the outer casing 11 can be fixedly connected to the front of the water curtain 3, and the side cover plate 112 and the back cover plate 113 of the outer casing 11 are fixedly connected to one side and the back side of the condenser 8, respectively. The side cover plate 112 and the back cover plate 113 help more refrigerant to exchange heat with the outside air or cooling medium, thereby improving the condensation effect.

[0040] The outer casing 11 adopts a one-piece sheet metal design for the air conditioner body. The air conditioner body 1 only needs to be connected to the electrical control box 14 to operate, without any other installation. This allows the air conditioner body 1 to be moved to any required location, making it widely applicable.

[0041] Furthermore, the condenser 8 can be configured as a copper tube finned heat exchanger, a shell and tube heat exchanger, or a water-fluorine heat exchanger.

[0042] In this embodiment, when air heat exchange is used, the condenser 8 in the refrigeration system can be a copper tube finned heat exchanger. The high-temperature, high-pressure refrigerant gas discharged by the compressor 7 of the refrigeration system comes into direct contact with the air through the copper tube fins, and is dissipated by the condenser fan 9. Based on the technical principle of this embodiment, the condenser 8 can be placed outdoors for heat dissipation, using a split installation with copper tube connections.

[0043] Alternatively, when using water for heat exchange, the condenser 8 in the refrigeration system can be a shell-and-tube heat exchanger or a water-to-fluorine heat exchanger. The high-temperature, high-pressure refrigerant gas discharged from the compressor 7 of the refrigeration system exchanges heat with water in the shell-and-tube heat exchanger or the water-to-fluorine heat exchanger. The water carries away the heat from the condenser 8, resulting in higher energy efficiency and better cooling performance.

[0044] Preferably, compressor 7 can be configured as a cryogenic enthalpy-increasing compressor, designed and selected in conjunction with economizer 15. This allows the heating function to operate normally at an ambient temperature of -20 degrees Celsius.

[0045] In practical implementation, during the operation of the refrigeration system, the high-temperature, high-pressure refrigerant compressed by the compressor 7 is discharged and dissipates heat through the condenser 8. In this embodiment, a heat recovery unit 13 can be added to fully absorb and recover the waste heat from the condenser 8 during refrigeration. This enables the acquisition of hot water. Simultaneously, it significantly reduces the inlet temperature of the electronic expansion valve before throttling, resulting in a lower temperature after throttling, leading to a more ideal evaporation effect and higher refrigeration efficiency.

[0046] like Figure 8 As shown, a drain pipe 16 for discharging condensate generated during the cooling or heating process can be connected to the base plate of the air conditioner body 1.

[0047] The working principle of this embodiment is as follows:

[0048] Hot air first enters the water curtain for cooling through the air inlet on the outer casing of the air conditioner. The water in the water curtain is condensate produced by the evaporator of the air conditioning system, collected and stored in a water tank. A built-in water pump guides the condensate into the water curtain for cooling and dust removal. After being cooled / dehumidified by the evaporator (when the refrigeration system is working, the refrigerant is compressed into a high-temperature, high-pressure gas by the compressor, then discharged after heat exchange with the air in the condenser, and condensed into a high-pressure, low-temperature liquid, which is then throttled and depressurized by the electronic expansion valve to become a low-temperature, low-pressure liquid refrigerant, and then generates low-temperature cold air in the evaporator), the cold air is circulated and pressurized by the blower and sent into the space that needs cooling. This cycle of cooling and dehumidification is repeated until the cooling purpose is achieved.

[0049] The use case of this embodiment is described as follows:

[0050] In outdoor installation: When the air conditioner unit is placed outdoors and in 100% fresh air mode, fresh cool air is delivered into the room by directly connecting the cool air outlet on the outer casing to the indoor unit via ductwork, achieving cooling. In return air mode, the main unit is also placed outdoors, with the cool air supply outlet connected to the indoor cooling space via ductwork, and a return air duct connected to the air inlet forming an internal circulation, achieving cooling through continuous circulation of cool air.

[0051] In indoor installation: The main unit of the air conditioner is placed indoors, and the condenser fan exhausts heat through an external exhaust duct, directly blowing cold air from the air outlet into the room. This circulates the cold air repeatedly throughout the room, achieving the cooling effect.

[0052] Portable installation: No ductwork is required. The main unit is placed in the environment, and the condenser fan exhausts heat through the external exhaust duct. The cool air is directly blown into the room through the air outlet to achieve the purpose of cooling.

[0053] When the air conditioning cooling function is not activated, it can be set to ventilation / dust removal mode, in which the water curtain, water pump and air supply fan can work normally to achieve the effect of ventilation, dust removal and air exchange in the room.

[0054] In summary, the beneficial effects of this embodiment are as follows:

[0055] 1. When the refrigeration system of this utility model is working, a large amount of condensate is generated by the evaporator and returned to the water storage tank for collection. Then, it is pumped by the water pump to the paper curtain for circulating cooling. The self-generated condensate is used to cool the water curtain, which can realize a series of functions such as circulating cooling, continuous dehumidification, water curtain dust removal and ventilation. Through the heat absorption or heat release physical changes of the refrigerant, it can realize the cooling function in summer and the heating function in winter. It has high operating efficiency, wide applicability and low cost.

[0056] 2. This utility model effectively solves the problem of excessively high compressor return air temperature under high temperature environment. It uses the condensate (below 20℃) generated by the air conditioner body during operation to cool down the air, which not only reduces the return air temperature, but also reduces the evaporation temperature difference, greatly improves the evaporator efficiency and cooling capacity, and enhances the energy efficiency of the refrigeration system.

[0057] 3. The air conditioner unit of this invention can still operate normally under environmental conditions of 55℃, avoiding compressor overheating protection caused by high temperatures and solving the problem of air conditioning not working properly in hot summers. Combined with water curtain cooling technology, it significantly reduces energy consumption and greatly improves cooling efficiency. In addition, while achieving comprehensive energy saving, it can achieve zero emissions and causes no pollution to the environment.

[0058] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A water curtain cooling environmentally friendly air conditioner with a refrigeration system, characterized in that: The system includes an air conditioner body. Inside the outer casing of the air conditioner body are a blower, a water curtain, a drip tray, an evaporator, a water tank, a compressor, a condenser, an electronic expansion valve, and a condenser fan. The outer casing has several air inlets and outlets. The outlet of the blower is connected to one of the outlets. The evaporator, water tank, water curtain, and drip tray are sequentially connected by pipes to form a loop for condensate circulation. A water pump is installed on the water tank. The drip tray is fixedly located below the water curtain. The condensate generated by the evaporator is collected and stored in the water tank and pumped into the water curtain. The compressor, condenser, electronic expansion valve, and evaporator are sequentially connected by a four-way valve to form a loop for refrigerant circulation. The condenser fan is mounted on the outer casing and connected to another outlet.

2. The water curtain cooling and environmentally friendly air conditioner with a refrigeration system according to claim 1, characterized in that: The water tray is horizontally fixed inside the air conditioner body and divides the interior of the air conditioner body into upper and lower parts. The air supply fan, evaporator and water curtain are all installed inside the upper part of the air conditioner body. The water curtain is located between the evaporator and one of the air inlets on the outer casing. The water storage tank, compressor, condenser, electronic expansion valve and condenser fan are all installed inside the lower part of the air conditioner body.

3. The water curtain cooling and environmentally friendly air conditioner with a refrigeration system according to claim 2, characterized in that: A water-blocking plate is vertically installed in the middle of the water receiving tray, dividing the water receiving tray into front and rear sides. A drainage interface is provided at the bottom of the front side of the water receiving tray. A through hole for pipes to pass through is opened on the rear end face of the water receiving tray. The evaporator and water curtain are both installed above the front side of the water receiving tray. The air supply fan is fixedly installed on the top rear side of the water receiving tray by a shock-absorbing pad.

4. The water curtain cooling and environmentally friendly air conditioner with a refrigeration system according to claim 1, characterized in that: It also includes a gas-liquid separator, the inlet of which is connected to the outlet of the condenser via a pipe, and the outlet of which is connected to the inlet of the compressor via a pipe.

5. The water curtain cooling and environmentally friendly air conditioner with a refrigeration system according to claim 1, characterized in that: It also includes an air duct, the air inlet of which is fixedly connected to the air outlet at the top of the housing and is connected to the air outlet of the blower.

6. The water curtain cooling and environmentally friendly air conditioner with a refrigeration system according to claim 1, characterized in that: The condenser has a U-shaped cross-section.

7. The water curtain cooling environmentally friendly air conditioner with a refrigeration system according to claim 1, characterized in that: The condenser is configured as a copper tube finned heat exchanger, a shell-and-tube heat exchanger, or a water-fluorine heat exchanger.

8. The water curtain cooling and environmentally friendly air conditioner with a refrigeration system according to claim 1, characterized in that: The compressor is configured as a cryogenic enthalpy-increasing compressor.

9. The water curtain cooling and environmentally friendly air conditioner with a refrigeration system according to claim 1, characterized in that: The upper sealing mesh plate of the outer shell is fixedly connected to the front of the water curtain, and the side mesh plate and the back mesh plate of the outer shell are fixedly connected to one side and the back side of the condenser, respectively.

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