Evaporative cold heat accumulating type roof air conditioning unit

Abstract

The utility model relates to the technical field of air conditioning units, in particular to an evaporative cold heat accumulating type roof air conditioning unit, which is characterized in that a compressor (8) is arranged below a collecting water tank (9); a heat storage water tank (12) is arranged on one side of the fluorine water heat exchanger (11); a heat dissipation plate (2) is arranged on one side of a fluorine water heat exchanger (11) and arranged above a water collection tank (9), a condensation fan (1) is arranged above the heat dissipation plate (2), a filter (5) is arranged on one side of the heat dissipation plate (2), an evaporator (6) is arranged on one side of the filter (5), and an air feeder (7) is arranged on one side of the evaporator (6). An access door (3) is arranged on the case; an electric box (13) is arranged in the case at the air feeder (7); a spraying water pump (10) is also arranged below the collecting water tank (9); and the spraying water pump 10 is connected with the spraying system 19 through the collecting water tank 9. The cooling device has a heat storage function and can prevent external impurities from entering cooling liquid.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning units, in particular to an evaporative cooling heat storage type rooftop air-conditioning unit. Background Art

[0002] Rooftop air-conditioning units have been widely used in factories, gymnasiums, hotels and other places due to their simple design, easy installation and use. However, they still have the disadvantage of energy waste when used in places where cooling is required all year round. Traditional rooftop air-conditioning units do not have heat storage function, and heat loss is wasted.

[0003] The central air-conditioning condensation heat recovery device disclosed in CN1844776A has a heat recovery device connected in series in the pipeline between the compressor and the condenser of the refrigeration system, the output end and the input end of the condenser are respectively connected to the input end and the output end of the cooling tower, the output end of the cooling tower is connected to a temperature sensor and a cooling water pump, and the cooling tower has a cooling tower packing layer. When the temperature of the coolant after being cooled by the heat recovery device is lower than the set value, the workload of the cooling fan is controlled by the intelligent control box to reduce the power consumption. It can be seen from the attached drawing that the cooling tower is an open cooling tower, and the cooling tower is connected to an automatic water replenishing tank. When in use, external impurities will enter the cooling water, causing water pollution.

[0004] Therefore, a new technical solution is needed to solve the above technical problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an evaporative heat storage type roof air conditioning unit with a heat storage function and capable of preventing external impurities from entering the cooling liquid.

[0006] In order to solve the above technical problems, the utility model provides an evaporative cooling heat storage type roof air conditioning unit, comprising a fluorine water heat exchanger, a compressor, a heat sink and a collecting water tank arranged in a chassis; a compressor is arranged below the collecting water tank; a heat storage tank is arranged on one side of the fluorine water heat exchanger; a heat sink is arranged on one side of the fluorine water heat exchanger, the heat sink is arranged above the collecting water tank, a condensing fan is arranged above the heat sink, a filter is arranged on one side of the heat sink, an evaporator is arranged on one side of the filter, and a blower is arranged on one side of the evaporator; an inspection door is arranged on the chassis; an electric box is arranged in the chassis at the blower; a spray water pump is also arranged below the collecting water tank; the spray water pump is connected to the spray system through the collecting water tank.

[0007] By adopting the above technical solution, the evaporator, compressor and fluorine-water heat exchanger are coordinated and powered directly by the city electricity. The unit works between the peak and valley power supply at night to generate hot water which is stored in the water storage tank. This enables the unit to have the air-conditioning evaporative cooling function while also having the heat storage function to provide domestic hot water, with a high energy efficiency ratio and better energy-saving effect.

[0008] Preferably, one end of the evaporator is connected to the first unit pipe of the four-way valve, and the other end of the evaporator is connected to a port of the valve group.

[0009] Preferably, the steam injection port of the compressor is connected to the high-pressure pipe of the four-way valve, and the air return port of the compressor is connected to the gas-liquid separator.

[0010] By adopting the above technical solution, the evaporator and the compressor are connected through a pipeline, so that the rooftop air conditioning unit has the function of air conditioning and refrigeration, and cool air is output through the air supply fan 7, making the unit more functional.

[0011] Preferably, the second unit pipe of the four-way valve is connected to the first port of the three-way regulating valve I, the second port of the three-way regulating valve I is connected to one end of the heat dissipation pipe equipped with a heat dissipation plate, and the third port of the three-way regulating valve I is connected to the inlet pipe of the fluorine water heat exchanger.

[0012] Preferably, the other port of the valve group is connected to the first port of the three-way regulating valve II, the second port of the three-way regulating valve II is connected to the other end of the heat dissipation pipe installed with the heat dissipation plate; the third port of the three-way regulating valve II is connected to the outlet pipe of the fluorine water heat exchanger.

[0013] By adopting the above technical scheme, the compressor is connected to the heat dissipation pipe of the heat dissipation plate through the four-way valve and the three-way regulating valve I, the heat dissipation pipe is connected to the valve group through the three-way regulating valve II, the valve group is connected to the evaporator, and after the water in the hot water storage tank reaches the use water temperature, the refrigerant liquid sprayed by the compressor returns to the evaporator after the heat is dissipated by the heat dissipation plate. The refrigerant liquid is enclosed in the pipeline throughout the process to prevent external impurities from entering the cooling liquid, thereby ensuring the cleanliness of the refrigerant liquid, preventing the evaporator from being corroded, and increasing the service life of the unit.

[0014] Preferably, the fluorine water heat exchanger is connected to the hot water storage tank through a water storage pipe, and a water valve, a check valve, a circulating water pump and a Y-type filter are sequentially arranged on the water storage pipe.

[0015] By adopting the above technical solution, the water valve, the check valve, the circulating water pump and the Y-type filter constitute a hydraulic module, and the hot water after heat exchange is filtered through the Y-type filter and stored in the heat storage tank for daily domestic water supply.

[0016] Preferably, a spray system is provided above the heat dissipation plate, and the condensing fan is located above the spray system.

[0017] By adopting the above technical solution, when the water temperature of the hot water storage tank reaches the use water temperature, the heat of the compressor is taken away through the heat dissipation plate and the condensing fan by adjusting the two three-way regulating valves.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. The evaporator, compressor and fluorine-water heat exchanger of the utility model cooperate to generate hot water which is stored in the water storage tank, so that the unit has the function of air-conditioning evaporative cooling and heat storage function, providing domestic hot water, with high energy efficiency ratio and better energy-saving effect.

[0020] 2. The compressor of the utility model is connected to the heat dissipation pipeline of the heat dissipation plate through a four-way valve and a three-way regulating valve I. The heat dissipation pipeline is connected to the valve group through a three-way regulating valve II. The valve group is connected to the evaporator. After the water in the heat storage tank reaches the use water temperature, the refrigerant liquid sprayed by the compressor flows back to the evaporator after the heat is dissipated by the heat dissipation plate. The refrigerant liquid is enclosed in the pipeline throughout the process to prevent external impurities from entering the cooling liquid, thereby ensuring the cleanliness of the refrigerant liquid, preventing the evaporator from being corroded, and improving the service life of the unit.

[0021] 3. The utility model integrates the filter, evaporator, compressor, blower, fluorine water heat exchanger, hot water storage tank and condensing fan in one chassis. The integrated structural design achieves the beneficial effects of shortening the construction period, reducing the workload of on-site installation, reducing the floor space, eliminating the need for an air-conditioning room and facilitating maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural diagram of the utility model.

[0023] Figure 2 It is the left view of the utility model.

[0024] Figure 3 It is the right view of the utility model.

[0025] Figure 4 It is a top view of the utility model.

[0026] Figure 5 This is a schematic diagram of the system flow of the utility model.

[0027] Figure 6 This is a refrigerant path diagram for heat recovery when the hot water storage tank of the utility model is working.

[0028] Figure 7 This is a refrigerant path diagram when the water storage tank of the utility model reaches the water temperature and stops working.

[0029] In the figure, 1. condensing fan, 2. heat sink, 3. inspection door, 4. water drop filler, 5. filter, 6. evaporator, 7. blower, 8. compressor, 9. collecting water tank, 10. spray water pump, 11. fluorine water heat exchanger, 12. heat storage tank, 13. electric box, 14. gas-liquid separator, 15. four-way valve, 16. three-way regulating valve I, 17. three-way regulating valve II, 18. valve group, 19. spray system, 20. water valve, 21. check valve, 22. Y-type filter, 23. circulating water pump. DETAILED DESCRIPTION

[0030] like Figure 1-3 As shown, an evaporative cooling heat storage type roof air conditioning unit includes a fluorine water heat exchanger 11, a compressor 8, a heat sink 2, and a water collection tank 9 arranged in a chassis. The compressor 8 is arranged in the chassis below the water collection tank 9. Figure 4 , an inspection door 3 is provided at the back of the chassis. A hot water storage tank 12 is provided at one side of the fluorine water heat exchanger 11. The return pipe and the outlet pipe of the hot water storage tank 12 pass through the chassis. A heat sink 2 is provided at one side of the fluorine water heat exchanger 11, and the heat sink 2 is provided above the collecting water tank 9. A condensing fan 1 is provided on the chassis above the heat sink 2, and a filter 5 is provided in the chassis on one side of the heat sink 2. An evaporator 6 is provided in the chassis on one side of the filter 5, and a blower 7 is provided in the chassis on one side of the evaporator 6. A filter 5 is provided at the rear end of the evaporator 6, and the blower 7 is located at the front end of the evaporator 6, and the air is filtered and output to improve the cleanliness of the indoor air. A spray water pump 10 is also provided in the chassis below the collecting water tank 9. The spray water pump 10 transports the water in the collecting water tank 9 to the spray system 19 through a pipeline, and the spray system 19 dissipates heat to the heat sink 2. The spray system 19 can be a water spray pipe. An electric box 13 is provided in the chassis at the air blower 7; a water drop filler 4 is provided in the water collection tank 9. The evaporator, compressor 8 and fluorine water heat exchanger 11 of the present application cooperate to produce hot water which is stored in the water storage tank 12, so that the unit has the air conditioning evaporative cooling function and the heat storage function, providing domestic hot water, with high energy efficiency ratio and better energy saving effect. The filter 5, evaporator 6, compressor 8, air blower 7, fluorine water heat exchanger 11, water storage tank 12 and condensing fan 1 are integrated and installed in one chassis, with an integrated structural design, so as to achieve the beneficial effects of shortening the construction period, reducing the workload of on-site installation, reducing the floor space, eliminating the need for an air conditioning room and facilitating maintenance.

[0031] like Figure 5 As shown, a spray system 19 is provided in the chassis above the heat sink 2. The condensing fan 1 is located above the spray system 19 and is installed on the top plate of the chassis. When the water temperature of the hot water storage tank 12 reaches the use water temperature, the heat of the compressor 8 is taken away through the heat sink 2 and the condensing fan 1 by adjusting the two three-way regulating valves. One end of the evaporator 6 is connected to the first unit pipe of the four-way valve 15, and the other end of the evaporator 6 is connected to a port of the valve group 18. The steam injection port of the compressor 8 is connected to the high-pressure pipe of the four-way valve 15, and the return air port of the compressor 8 is connected to the gas-liquid separator 14. The evaporator 6 and the compressor 8 are connected by a pipeline, so that the rooftop air conditioning unit has the function of air conditioning and refrigeration, and the cool air is output through the air supply fan 7, so that the unit functions more fully.

[0032] The second unit pipe of the four-way valve 15 is connected to the first port of the three-way regulating valve I16, the second port of the three-way regulating valve I16 is connected to one end of the heat dissipation pipe installed with the heat dissipation plate 2, and the third port of the three-way regulating valve I16 is connected to the inlet pipe of the fluorine water heat exchanger 11. The other port of the valve group 18 is connected to the first port of the three-way regulating valve II17, the second port of the three-way regulating valve II17 is connected to the other end of the heat dissipation pipe installed with the heat dissipation plate 2; the third port of the three-way regulating valve II17 is connected to the outlet pipe of the fluorine water heat exchanger 11.

[0033] like Figure 6 The compressor 8 is connected to the fluorine-water heat exchanger 11 through the three-way regulating valve I16, and the fluorine-water heat exchanger 11 is connected to the evaporator 6 through the valve group 18 to achieve heat recovery and improve the recovery efficiency of waste heat energy. Figure 7 The compressor 8 is connected to the heat dissipation pipe of the heat dissipation plate 2 through the four-way valve 15 and the three-way regulating valve I 16. The heat dissipation pipe is connected to the valve group 18 through the three-way regulating valve II 17. The valve group 18 is connected to the evaporator 6. After the water in the hot water storage tank 12 reaches the use water temperature, the refrigerant liquid sprayed by the compressor 8 is refluxed to the evaporator 6 after the heat is dissipated by the heat dissipation plate 2. The refrigerant liquid is enclosed in the pipeline throughout the process to prevent external impurities from entering the cooling liquid, ensure the cleanliness of the refrigerant liquid, prevent the evaporator 6 from being corroded, and improve the service life of the unit.

[0034] The fluorine water heat exchanger 11 is connected to the hot water storage tank 12 through a water storage pipe, and a water valve 20, a check valve 21, a circulating water pump 23 and a Y-type filter 22 are sequentially arranged on the water storage pipe. The water valve 20, the check valve 21, the circulating water pump 23 and the Y-type filter 22 constitute a hydraulic module, and the hot water after heat exchange is filtered by the Y-type filter 22 and stored in the hot water storage tank 12 for daily living water.

[0035] Here’s how it works:

[0036] 1) Normal operation mode: Through the adjustment of two three-way regulating valves, all the heat generated by the compressor 8 is taken away by the heat sink 2 and the condensing fan 1, and the indoor unit can deliver cold air for indoor cooling.

[0037] 2) Heat recovery to generate domestic hot water operation mode: Through the regulation of two three-way regulating valves, the heat generated by the compressor 8 is used to increase the water temperature through the fluorine water heat exchanger 11, and the hot water is stored in the hot water storage tank 12 for daily domestic water use. When the water temperature of the hot water storage tank 12 reaches the use water temperature, it is regulated again through the two three-way regulating valves to take away the heat of the compressor 8 through the heat dissipation plate 2 and the condensing fan 1.

[0038] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed or modified in any way.

Claims

1. An evaporative cooling heat storage type rooftop air conditioning unit, comprising a fluorine water heat exchanger (11), a compressor (8), a heat sink (2) and a water collection tank (9) arranged in a housing; the compressor (8) is arranged below the water collection tank (9); the characteristics are: A heat storage tank (12) is arranged on one side of the fluorine water heat exchanger (11); a heat sink (2) is arranged on one side of the fluorine water heat exchanger (11); the heat sink (2) is arranged above a collecting water tank (9); a condensing fan (1) is arranged above the heat sink (2); a filter (5) is arranged on one side of the heat sink (2); an evaporator (6) is arranged on one side of the filter (5); and a blower (7) is arranged on one side of the evaporator (6); an inspection door (3) is arranged on the chassis; an electric box (13) is arranged in the chassis at the blower (7); a spray water pump (10) is also arranged below the collecting water tank (9); and the spray water pump (10) is connected to a spray system (19) through the collecting water tank (9).

2. An evaporative cooling heat storage rooftop air conditioning unit according to claim 1, characterized in that: One end of the evaporator (6) is connected to the first unit pipe of the four-way valve (15), and the other end of the evaporator (6) is connected to a port of the valve group (18).

3. An evaporative cooling heat storage rooftop air conditioning unit according to claim 1, characterized in that: The steam injection port of the compressor (8) is connected to the high-pressure pipe of the four-way valve (15), and the air return port of the compressor (8) is connected to the gas-liquid separator (14).

4. An evaporative cooling heat storage rooftop air conditioning unit according to claim 2, characterized in that: The second unit pipe of the four-way valve (15) is connected to the first port of the three-way regulating valve I (16), the second port of the three-way regulating valve I (16) is connected to one end of a heat dissipation pipeline on which a heat dissipation plate (2) is installed, and the third port of the three-way regulating valve I (16) is connected to the inlet pipe of the fluorine-water heat exchanger (11).

5. An evaporative cooling heat storage rooftop air conditioning unit according to claim 4, characterized in that: The other port of the valve group (18) is connected to the first port of the three-way regulating valve II (17), the second port of the three-way regulating valve II (17) is connected to the other end of the heat dissipation pipeline on which the heat dissipation plate (2) is installed, and the third port of the three-way regulating valve II (17) is connected to the outlet pipe of the fluorine-water heat exchanger (11).

6. An evaporative cooling heat storage rooftop air conditioning unit according to claim 1, characterized in that: The fluorine water heat exchanger (11) is connected to the hot water storage tank (12) via a water storage pipe, and a water valve (20), a check valve (21), a circulating water pump (23) and a Y-type filter (22) are sequentially arranged on the water storage pipe.

7. An evaporative cooling heat storage rooftop air conditioning unit according to claim 1, characterized in that: A spray system (19) is arranged above the heat dissipation plate (2), and the condensing fan (1) is located above the spray system (19).

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