Dry-wet separation type evaporative condenser

Abstract

The utility model relates to the technical field of refrigeration, in particular to a dry-wet separation type evaporative condenser which comprises a shell, a water collecting tank is arranged at the bottom of the shell, a water outlet of the water collecting tank is connected with a circulating water pump through a pipeline, the circulating water pump is connected with a spraying system through a pipeline, and a plurality of layers of condensing coils are arranged above the water collecting tank. Fresh air inlets are formed in the two sides, between the water collecting tank and the condensing coil, of the shell, an axial flow fan is arranged above the condensing coil, the axial flow fan is installed at a hot air outlet, and the hot air outlet is formed in the top of the shell; the spraying system comprises a spraying pipe installed on the upper middle portion of the condensing coil, and a plurality of downward nozzles are installed on the spraying pipe. According to the utility model, the spraying system is arranged at the middle upper part of the condensing coil, so that entering high-temperature steam is sucked by the axial flow fan at the front section of the condensing coil to take away a part of heat, and the cooled steam enters the rear-end coil of the condensing coil and then is simultaneously cooled by spraying cooling water and fresh air, so that the condensing coil is effectively prevented from scaling.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, in particular to a dry-wet separation type evaporative condenser. Background Art

[0002] The outlet of an existing evaporative condenser. An evaporative condenser, a type of condenser, uses the latent heat of evaporating water to remove heat, cooling the high-temperature, high-pressure steam discharged from the compressor. This condenses the refrigerant vapor within the tubes, providing a relatively low condensing temperature. Compared to water-cooled and air-cooled condensers, evaporative condensers offer better heat transfer and greater economic efficiency, making them widely used in the refrigeration and freezing industries.

[0003] At present, the spray water used in evaporative condensers contains salts such as calcium, magnesium ions, and bicarbonate. When the temperature of the steam entering the condensing coil is too high, the water is sprayed directly onto the condensing coil through which the high-temperature steam passes, causing rapid scaling on its surface, thereby affecting its condensation effect. Utility Model Content

[0004] The utility model aims to solve the above problems and provides a dry-wet separation evaporative condenser.

[0005] The utility model is realized through the following technical scheme: a dry-wet separation evaporative condenser, comprising a shell, characterized in that a water collecting tank is provided at the bottom of the shell, the water outlet of the water collecting tank is connected to a circulating water pump through a pipe, the circulating water pump is connected to a spray system through a pipe, a multi-layer condensing coil is provided above the water collecting tank, fresh air inlets are provided on both sides of the shell between the water collecting tank and the condensing coil, an axial flow fan is provided above the condensing coil, the axial flow fan is installed at the hot air outlet, and the hot air outlet is provided at the top of the shell; the spray system includes a spray pipe installed in the upper middle part of the condensing coil, and a plurality of downward-facing nozzles are installed on the spray pipe.

[0006] Furthermore, the fresh air inlet is provided with an air inlet grille.

[0007] Furthermore, the spray pipe is installed at 3 / 4 of the condensing coil.

[0008] Furthermore, an electronic water processor is provided on the pipe connecting the circulating water pump and the spray pipe, close to the end of the circulating water pump.

[0009] Furthermore, a gaseous refrigerant inlet is provided at the top of the condensing coil, and a liquid refrigerant outlet is provided at the bottom.

[0010] The beneficial effect of the utility model is that the utility model arranges the spray system in the middle and upper part of the condensing coil, so that the high-temperature steam entering is sucked away by the axial flow fan at the front end of the condensing coil to take away part of the heat, and the cooled steam enters the rear end coil of the condensing coil and is then cooled simultaneously by the spraying of cooling water and fresh air, effectively avoiding scaling of the condensing coil and ensuring the heat exchange effect of the condensing coil. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0012] In the accompanying drawings, 1 is a shell, 2 is a water collection tank, 3 is a circulating water pump, 4 is an electronic water processor, 5 is a fresh air inlet, 6 is a condensing coil, 61 is a gaseous refrigerant inlet, 62 is a liquid refrigerant outlet, 7 is a spray pipe, 71 is a nozzle, 8 is an axial flow fan, and 9 is a hot air outlet. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solution and beneficial effects of the present invention more clear, the technical solution of the present invention is further described below in conjunction with embodiments.

[0014] like Figure 1 As shown, a dry-wet separation evaporative condenser includes a shell 1, characterized in that a water collecting tank 2 is provided at the bottom of the shell 1, the water outlet of the water collecting tank 2 is connected to a circulating water pump 3 through a pipe, and the circulating water pump 3 is connected to a spray system through a pipe. A multi-layer condensing coil 6 is provided above the water collecting tank 2, and a gas refrigerant inlet 61 is provided on the upper part of the condensing coil 6, and a liquid refrigerant outlet 62 is provided at the bottom. Fresh air inlets 5 are provided on both sides of the shell 1 between the water collecting tank 2 and the condensing coil 6, and air inlet grilles are provided at the outlets of the fresh air inlet 5. An axial flow fan 8 is provided above the condensing coil 6, and the axial flow fan 8 is installed at the hot air outlet 9, which is provided at the top of the shell 1; the spray system includes a spray pipe 7 installed in the upper middle part of the condensing coil 6, and the spray pipe 7 is equipped with a plurality of downward-facing nozzles 71.

[0015] In order to achieve a better dry-wet separation effect, the spray pipe 7 is installed at 3 / 4 of the condensing coil 6.

[0016] In order to prevent scale and remove dirt, and sterilize and remove algae from the circulating water, an electronic water processor 4 is provided on the pipe connecting the circulating water pump 3 and the spray pipe 7 near the end of the circulating water pump 3 .

[0017] During use, high-temperature steam enters the condensing coil 6 from the gaseous refrigerant inlet 61, and the axial flow fan 8 is started. The axial flow fan 8 draws fresh air from the fresh air inlet 5 into the shell 1, rises to the condensing coil 6, and takes away the hot air outside the tube wall of the condensing coil 6, and is discharged from the hot air outlet 9 at the top. After the high-temperature steam dissipates heat in the front quarter of the condensing coil 6, the spray system is started again, and the nozzle 71 in the spray system sprays cooling water to the last three quarters of the condensing coil 6, so that the high-temperature steam in the condensing coil 6 is cooled from gaseous state and condensed into liquid state, and then flows out through the liquid refrigerant outlet 62. The sprayed cooling water flows into the water collection tank 2 at the bottom and continues to circulate. If the water level in the water collection tank 2 is insufficient, it is replenished in time.

[0018] The high-temperature steam exchanges heat with the water and air outside the condensing coil 6, and the heat exchange effect is significantly improved.

[0019] Except for the technical features described in the specification, the remaining technical features are known to those skilled in the art.

Claims

1. A dry-wet separation evaporative condenser, comprising a shell (1), characterized in that: A water collecting tank (2) is provided at the bottom of the shell (1), a water outlet of the water collecting tank (2) is connected to a circulating water pump (3) through a pipe, and the circulating water pump (3) is connected to a spray system through a pipe. A multi-layer condensing coil (6) is provided above the water collecting tank (2), and a fresh air inlet (5) is provided on both sides of the shell (1) between the water collecting tank (2) and the condensing coil (6). An axial flow fan (8) is provided above the condensing coil (6), and the axial flow fan (8) is installed at a hot air outlet (9), and the hot air outlet (9) is provided at the top of the shell (1); the spray system includes a spray pipe (7) installed in the upper middle part of the condensing coil (6), and a plurality of downward-facing nozzles (71) are installed on the spray pipe (7).

2. A dry-wet separation evaporative condenser according to claim 1, characterized in that: The fresh air inlet (5) is provided with an air inlet grille.

3. The dry-wet separation evaporative condenser according to claim 1, characterized in that: The spray pipe (7) is installed at 3 / 4 of the condensing coil (6).

4. The dry-wet separation evaporative condenser according to claim 1, characterized in that: An electronic water processor (4) is provided on the pipe connecting the circulating water pump (3) and the spray pipe (7) near the end of the circulating water pump (3).

5. The dry-wet separation evaporative condenser according to claim 1, characterized in that: The condensing coil (6) is provided with a gaseous refrigerant inlet (61) at the top and a liquid refrigerant outlet (62) at the bottom.

Images