Spray type evaporative condenser

Abstract

The utility model relates to the technical field of air conditioning equipment structures, in particular to a spray type evaporative condenser, which is provided with a shell, a fan is arranged at an air outlet above the shell, a spiral condensing coil is arranged in the shell from top to bottom, the upper end and the lower end of the condensing coil respectively extend out of the shell, an air inlet is arranged on the side wall of the shell, and a water inlet is arranged on the side wall of the shell. A spraying mechanism is arranged in the shell and comprises a spraying coil pipe and a spraying nozzle, one end of the spraying coil pipe is arranged in a condensing coil pipe in the middle of the shell, the spraying nozzle is installed above the spraying coil pipe, the other end of the spraying coil pipe extends out of the shell to be connected with a water source, and a spraying valve is installed on the spraying coil pipe extending out of the shell. The water retaining net is arranged on the upper portion of the portion, above the spraying coil pipe, of the shell, fixed to the shell and inserted into the condensing coil pipe, and the heat exchanger has the advantages of being simple in structure, compact in structure, low in noise, good in heat exchange effect, high in energy efficiency ratio of a refrigerating system, capable of saving energy, reducing consumption and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning equipment structures, and particularly relates to a spray type evaporation condenser. Background Art

[0002] As is well known, an evaporation condenser is a commonly used heat exchange component in a refrigeration system. It mainly enables a high-temperature and high-pressure refrigerant gas discharged from a compressor in the refrigeration system to pass through a condenser coil in the evaporation condenser, so that the high-temperature gaseous refrigerant exchanges heat with water sprayed out by a nozzle outside the condenser coil and the flowing air, gradually condensing the gaseous refrigerant into a liquid refrigerant; the water sprayed out from the nozzle evenly covers the condenser coil, the water with an increased temperature evaporates into a gas state, and a large amount of heat is taken away by the latent heat of vaporization of water. The unevaporated water is cooled by the flowing air and then the temperature drops, and it falls into a water tank under the action of gravity and is recycled by a circulating water pump. The consumed water is replenished by a liquid level float ball water supply valve of the water tank. Existing evaporation condensers generally adopt a large-flow water spraying method, which has disadvantages such as large wind resistance, serious water drift, and uneven water distribution, resulting in low heat exchange efficiency of the condenser, insufficient utilization of the sprayed water, high energy consumption of the fan and water pump, large water consumption, and high noise of the sprayed water. Summary of the Invention

[0003] The purpose of the utility model is to solve the above-mentioned deficiencies of the prior art, and provide a spray type evaporation condenser with simple structure, compact structure, low noise, good heat exchange effect, high energy efficiency ratio of the refrigeration system, energy conservation and consumption reduction.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0005] A spray type evaporation condenser is provided with a housing. A fan is installed at the air outlet position above the housing. A coiled condensation coil is installed in the housing from top to bottom. The upper and lower ends of the condensation coil respectively extend out of the housing. An air inlet is provided on the side wall of the housing. It is characterized in that a spray mechanism is arranged in the housing. The spray mechanism includes a spray coil and a spray nozzle. One end of the spray coil is placed in the condensation coil in the middle of the housing. A spray nozzle is installed above the spray coil. The other end of the spray coil extends out of the housing and is connected to a water source. A spray valve is installed on the spray coil extending out of the housing. Heat exchange of the condensation coil is carried out through the spray sprayed upward. A water retaining net is provided at the upper part of the housing above the spray coil. The water retaining net is fixed on the housing and inserted into the condensation coil. The spray and water droplets sprayed upward are blocked by the water retaining net, and the blocked spray and water droplets fall down for heat exchange again.

[0006] A noise reduction pad is laid at the bottom of the housing of the utility model. A drain port is provided on the side of the housing below the noise reduction pad. The drain port is connected to a drain pipe, and a drain valve is installed on the drain pipe.

[0007] The lower part of the housing of the present utility model is provided with a spray-assisted coil pipe. One end of the spray-assisted coil pipe extends to the position of the condensation coil pipe inside the housing, and the other end of the spray-assisted coil pipe extends out of the housing and is connected to a water source. An auxiliary spray nozzle is installed on the spray-assisted coil pipe, and an auxiliary valve is installed on the spray-assisted coil pipe extending out of the housing.

[0008] The air inlets on the housing of the present utility model include an upper air inlet, a lower air inlet, and a bottom air inlet. The upper air inlet is arranged on the housing on the side of the spray coil pipe, the lower air inlet is arranged on the housing on the side of the spray-assisted coil pipe, and the bottom air inlet is arranged on the peripheral side walls of the housing above the noise reduction pad.

[0009] The spray-assisted coil pipe and the spray coil pipe of the present utility model are connected through the same water delivery pipe, and the water delivery pipe is connected to a water source.

[0010] Due to the adoption of the above structure, the present utility model has the advantages of simple structure, compact structure, low noise, good heat exchange effect, high energy efficiency ratio of the refrigeration system, energy conservation and consumption reduction, etc. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of the present utility model. Detailed Embodiment

[0012] The present utility model will be further described below in conjunction with the drawings:

[0013] As shown in the drawings, a spray-type evaporation condenser is provided with a housing 1. A fan 2 is installed at the position of the air outlet 20 above the housing 1. A coiled condensation coil pipe 3 is installed in the housing 1 from top to bottom. The upper and lower ends of the condensation coil pipe 3 respectively extend out of the housing 1. An air inlet is provided on the side wall of the housing 1. It is characterized in that a spray mechanism is arranged inside the housing 1. The spray mechanism includes a spray coil pipe 4 and a spray nozzle 5. One end of the spray coil pipe 4 is placed inside the condensation coil pipe 3 in the middle of the housing 1. A spray nozzle 5 is installed above the spray coil pipe 4. The other end of the spray coil pipe 4 extends out of the housing 1 and is connected to a water source. A spray valve 6 is installed on the spray coil pipe 4 extending out of the housing 1. Heat exchange is carried out on the condensation coil pipe 3 through the spray sprayed upward. A water baffle net 7 is provided at the upper part of the housing 1 above the spray coil pipe 4. The water baffle net 7 is fixed on the housing 1 and inserted into the condensation coil pipe 3. The spray and water droplets sprayed upward are blocked by the water baffle net 7, and the blocked spray and water droplets fall down for heat exchange again. The connection method of the above-mentioned condensation coil pipe extending out of the housing to the outside is the same as that of the prior art and will not be elaborated here. The port where the upper end of the condensation coil pipe 3 extends out of the housing 1 is the condenser inlet 8, and the port where the lower end of the condensation coil pipe 3 extends out of the housing 1 is the condenser outlet 9.

[0014] Further, a noise reduction pad 10 is laid at the bottom of the housing 1. A drain port is provided on the side of the housing 1 below the noise reduction pad 10. The drain port is connected to a drain pipe 11, and a drain valve 12 is installed on the drain pipe 11.

[0015] Further, a spray-assisted coil 13 is provided at the lower part of the housing 1. One end of the spray-assisted coil 13 extends to the position of the condensation coil 3 inside the housing 1, and the other end of the spray-assisted coil 13 extends out of the housing 1 and is connected to a water source. An auxiliary spray nozzle 14 is installed on the spray-assisted coil 13, and an auxiliary valve 15 is installed on the spray-assisted coil 13 extending out of the housing 1.

[0016] Further, the air inlets on the housing 1 include an upper air inlet 16, a lower air inlet 17, and a bottom air inlet 18. The upper air inlet 16 is provided on the housing 1 on the side of the spray coil 4, the lower air inlet 17 is provided on the housing 1 on the side of the spray-assisted coil 13, and the bottom air inlet 18 is provided on the peripheral side walls of the housing 1 above the noise reduction pad 10. While ensuring the air volume, the air between the upper air inlet 16 and the lower air inlet 17 forms an intersecting air flow. After mutual disturbance, a turbulent flow is formed, thereby agitating and dispersing the spray ejected from the spray nozzle 5, and increasing the contact area between the spray and the condensation coil 3.

[0017] Further, the spray-assisted coil 13 and the spray coil 4 are connected through the same water delivery pipe 19, and the water delivery pipe 19 is connected to a water source.

[0018] When the utility model is in use, the water source is tap water, and the water supply pressure is not less than 0.07 MPa. The tap water enters the spray auxiliary coil 13 and the spray coil 4 through the water conveyance pipeline 19 respectively. The spray valves 6 and the auxiliary valves 15 on the spray auxiliary coil 13 and the spray coil 4 control the conduction of the spray auxiliary coil 13 and the spray coil 4 respectively, and the water flow is controlled through the spray valves 6 and the auxiliary valves 15. The nozzles are distributed at the lower and middle positions of the housing 1. The atomized water droplets generated by the spray nozzles 5 in the middle position flow with the air and contact the surface of the condenser coil for heat exchange. The unevaporated atomized water droplets are blocked by the water baffle 7 and fall onto the surface of the condenser coil under the action of gravity, and exchange heat with the condenser coil again. This process strengthens the heat transfer effect and improves the evaporation efficiency of the atomized water droplets. When the atomized water droplets of the spray nozzles 5 cannot meet the heat exchange requirements of the condenser coil, the auxiliary spray nozzles 14 at the lower position are started to strengthen the heat exchange of the bottom condenser coil and increase the subcooling degree of the liquid refrigerant to meet the heat exchange requirements of the condenser coil. Finally, the unevaporated atomized water droplets fall into the water receiving tray and are discharged through the drain port. To reduce the noise generated by the atomized water droplets falling into the water receiving tray, a noise reduction pad 10 is added in the water receiving tray. The noise reduction pad 10 adopts a water-permeable design. The unevaporated atomized water droplets are blocked by the water baffle 7 and fall under the action of gravity, exchange heat with the condenser coil again, and the remaining ones fall into the bottom noise reduction pad 10 and are discharged through the drain port. The outdoor air after heat exchange blocks the unevaporated atomized water droplets through the water baffle 7 and then is discharged through the fan 2.

[0019] Compared with the prior art, the beneficial effects achieved by the utility model are as follows:

[0020] This patent is directly connected to tap water, and a small amount of unevaporated water droplets directly drain after falling to the bottom of the housing 1, avoiding the sanitation problems caused by the too large size of the water tank and the long-term water accumulation in the traditional circulating water tank; the specific surface area of the atomized water droplets is much larger than that of the water film formed by the scattered water in the traditional evaporation condenser, the gas-water heat and mass transfer surface area is large, and the heat exchange effect is good, which can improve the working conditions of the refrigeration system and increase the energy efficiency ratio of the refrigeration system; by adopting the method of generating atomized water droplets with nozzles, there is no need for a circulating water pump to provide a large flow of water, the air resistance in the machine can be reduced, and the power consumption of the fan 2 can be lowered; the water flow required for the nozzles to generate atomized water droplets is significantly lower than that of the traditional large flow of water sprayed by a water pump, and accordingly the drift water volume is reduced, saving water consumption. Due to the adoption of the above structure, the utility model has the advantages of simple structure, compact structure, low noise, good heat exchange effect, high energy efficiency ratio of the refrigeration system, energy saving and consumption reduction.

Claims

1. A spray type evaporative condenser, provided with a shell, a fan is installed at the exhaust port position above the shell, a spiral condensing coil is installed from top to bottom in the shell, the upper and lower ends of the condensing coil extend out of the shell respectively, and an air inlet is provided on the side wall of the shell, characterized in that A spray mechanism is provided in the shell, and the spray mechanism includes a spray coil and a spray nozzle. One end of the spray coil is placed in the condensing coil in the middle of the shell, and the spray nozzle is installed above the spray coil. The other end of the spray coil extends out of the shell and is connected to a water source. A spray valve is installed on the spray coil extending out of the shell. The condensing coil is heat exchanged by spray sprayed upward. A water retaining net is provided on the upper part of the shell above the spray coil. The water retaining net is fixed on the shell and inserted into the condensing coil. The spray and water droplets directed upward are blocked by the water retaining net, and the blocked spray and water droplets fall down for heat exchange again.

2. A spray type evaporative condenser according to claim 1, characterized in that A noise reduction pad is laid on the bottom of the shell, a drainage port is provided on the shell on the side below the noise reduction pad, the drainage port is connected to a drainage pipe, and a drainage valve is installed on the drainage pipe.

3. A spray type evaporative condenser according to claim 1, characterized in that A spray auxiliary coil is provided at the lower part of the shell, one end of the spray auxiliary coil extends to the condensing coil position in the shell, and the other end of the spray auxiliary coil extends out of the shell and is connected to a water source. An auxiliary spray nozzle is installed on the spray auxiliary coil, and an auxiliary valve is installed on the spray auxiliary coil extending out of the shell.

4. A spray type evaporative condenser according to claim 1, characterized in that The air inlet on the shell includes an upper air inlet, a lower air inlet and a bottom air inlet. The upper air inlet is arranged on the shell on the side of the spray coil, the lower air inlet is arranged on the shell on the side of the spray auxiliary coil, and the bottom air inlet is arranged on the side walls of the shell above the noise reduction pad.

5. A spray type evaporative condenser according to claim 3, characterized in that The spray auxiliary coil and the spray coil are connected via the same water pipeline, and the water pipeline is connected to a water source.

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