Evaporative condenser for refrigerating unit

Abstract

The utility model belongs to the technical field of condensers, and particularly relates to an evaporative condenser for a refrigerating unit, which comprises a condenser shell, a coil pipe is mounted in the condenser shell through bolts, a circulating pump is mounted on one side outside the condenser shell through bolts, a spray pipe is mounted on the inner side of a fixed end, and a water outlet is formed in the outer side of the spray pipe. A plurality of spraying heads are fixed below the spraying pipe; an air chamber is fixed to the upper portion of the condenser shell, an axial flow fan is installed in the air chamber, air speed sensors are bonded to the two sides of the inner wall of the air chamber, a plurality of air blocking blades are arranged on the lower portion in the air chamber, and a transmission gear is fixed to one end of one air blocking blade. A driving motor is mounted on one side of the transmission gear, and the two ends of the transmission gear are in engaged connection with driven gears; the driving motor can drive the transmission gear and the driven gear to rotate synchronously, opening and closing of the air blocking blades are achieved through gear transmission, and hot air backflow caused by airflow disturbance is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of condenser technology, specifically relating to an evaporative condenser for refrigeration units. Background Technology

[0002] A refrigeration unit is an industrial device that can compress the vapor of a low-temperature refrigerant into a high-temperature, high-pressure refrigerant. It is mainly used for refrigeration, cold storage, freezing and other applications. The evaporative condenser is the core component of the refrigeration unit.

[0003] Chinese Patent Publication No. CN220355779U discloses a novel evaporative condenser, belonging to the field of cooling equipment technology. It includes a housing, a spray device inside the housing, a water collector inside the housing above the spray device, a condensing device inside the housing below the spray device, a packing layer inside the housing below the condensing device, a water collection tank inside the housing below the packing layer, an axial flow fan unit installed on the top of the housing on one side of the water collector, a gas backflow prevention device below the axial flow fan unit, an air pre-cooling device between the axial flow fan unit and the water collector inside the housing, a spray pump outside the housing, a spray pipe connected to the spray pump, one end of the spray pipe connected to the water collection tank, and the other end connected to the air pre-cooling device, which is connected to the spray device.

[0004] Although the aforementioned evaporative condenser can prevent some of the gas carrying evaporation heat from flowing back by using the open grid on the square box and the corresponding set of folding blades, relying solely on the opening and closing of the folding blades themselves introduces relatively unstable factors during the opening and closing process, making it difficult to achieve a good effect in preventing hot gas backflow. Therefore, we propose an evaporative condenser for refrigeration units. Utility Model Content

[0005] To address the problem in the background technology where relying solely on the flap structure for opening and closing introduces instability and hinders effective hot gas backflow prevention, this invention provides an evaporative condenser for refrigeration units.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an evaporative condenser for a refrigeration unit, comprising a condenser shell, a coil installed inside the condenser shell by bolts, a circulation pump installed on one side outside the condenser shell by bolts, a water supply pipe installed above the circulation pump by bolts, fixed ends fixed on both sides of the inner wall of the condenser shell, a spray pipe installed inside the fixed end, and several spray heads fixed below the spray pipe;

[0007] A wind chamber is fixed above the condenser housing. An axial flow fan is installed inside the wind chamber. Wind speed sensors are attached to both sides of the inner wall of the wind chamber. Several wind deflectors are arranged at the bottom of the wind chamber. A transmission gear is fixed to one end of one of the wind deflectors. A drive motor is installed on one side of the transmission gear. Both ends of the transmission gear are meshed with driven gears.

[0008] As a preferred embodiment of the evaporative condenser for refrigeration units according to this utility model, the circulating pump is connected to the spray pipe through the water supply pipe, and the spray heads are distributed in an array.

[0009] As a preferred embodiment of the evaporative condenser for refrigeration units according to this utility model, a water collection tank is installed at the bottom of the condenser shell, and the spray head corresponds to the position of the coil and the water collection tank.

[0010] As a preferred embodiment of the evaporative condenser for refrigeration units according to this utility model, the air chamber is connected to the condenser shell, and the axial fan is positioned corresponding to the coil.

[0011] As a preferred embodiment of the evaporative condenser for a refrigeration unit according to this utility model, the drive motor and the transmission gear form a rotating structure, the driven gear is symmetrically distributed about the vertical center line of the transmission gear, and the transmission gear and the driven gear correspond one-to-one with the wind deflector blades.

[0012] As a preferred embodiment of the evaporative condenser for refrigeration units according to this utility model, the spray pipe is threadedly connected to one of the fixed ends.

[0013] As a preferred embodiment of the evaporative condenser for refrigeration units according to this utility model, a connecting clamp is provided at the connection between the spray pipe and the other fixed end, and the connecting clamps are fixed to each other by bolts.

[0014] Compared with the prior art, the beneficial effects of this utility model are: in this application, the drive motor can drive the transmission gear and the driven gear to rotate synchronously, and the opening and closing of the wind deflector blades can be realized through gear transmission, so as to avoid the hot air backflow caused by airflow disturbance and prevent the problem that relying solely on the structure of the folding blades for opening and closing, there are relatively unstable factors in the opening and closing process, making it difficult to achieve a good hot air backflow prevention effect. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a top view of the internal structure of the stroke chamber of this utility model;

[0018] Figure 3 This is a top view of the stroke chamber of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the spray pipe and the fixed end in this utility model;

[0020] Figure 5 This is a side view of the connecting clamp in this utility model.

[0021] In the diagram: 1. Condenser housing; 2. Coil; 3. Circulation pump; 4. Water supply pipe; 5. Spray pipe; 6. Spray head; 7. Air chamber; 8. Axial flow fan; 9. Wind deflector blades; 10. Wind speed sensor; 11. Water collection tank; 12. Transmission gear; 13. Drive motor; 14. Driven gear; 15. Connecting clamp; 16. Fixed end. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0023] like Figures 1-5 As shown;

[0024] An evaporative condenser for a refrigeration unit includes a condenser shell 1, a coil 2 bolted inside the condenser shell 1, a circulation pump 3 bolted on one side outside the condenser shell 1, a water supply pipe 4 bolted above the circulation pump 3, fixed ends 16 fixed on both sides of the inner wall of the condenser shell 1, a spray pipe 5 installed inside the fixed end 16, and several spray heads 6 fixed below the spray pipe 5.

[0025] A wind chamber 7 is fixed above the condenser housing 1. An axial flow fan 8 is installed inside the wind chamber 7. Wind speed sensors 10 are attached to both sides of the inner wall of the wind chamber 7. Several baffle blades 9 are arranged at the bottom inside the wind chamber 7. A transmission gear 12 is fixed to one end of one of the baffle blades 9. A drive motor 13 is installed on one side of the transmission gear 12. Both ends of the transmission gear 12 are meshed with driven gears 14.

[0026] Furthermore:

[0027] In an optional embodiment, the circulating pump 3 is interconnected with the spray pipe 5 via the water delivery pipe 4, and the spray heads 6 are distributed in an array.

[0028] In this implementation scheme: the circulating pump 3 is connected to the spray pipe 5 through the water delivery pipe 4 to ensure a stable delivery of cooling water from the water collection tank 11 to the spray pipe 5.

[0029] Furthermore:

[0030] In an optional embodiment, a water collection tank 11 is disposed at the bottom inside the condenser housing 1, and the spray head 6 corresponds to the position of the coil 2 and the water collection tank 11.

[0031] In this implementation plan: the spray water can accurately cover the surface of the coil 2, while the return water falls directly into the water collection tank 11 to avoid splashing loss. The water collection tank 11 can collect the unevaporated cooling water and recycle it, reducing water waste.

[0032] Furthermore:

[0033] In an optional embodiment, the air chamber 7 is in communication with the condenser housing 1, and the axial fan 8 is positioned corresponding to the coil 2.

[0034] In this implementation scheme: the axial flow fan 8 can force the airflow to flow vertically across the surface of the coil 2, accelerating the evaporation of the water film.

[0035] Furthermore:

[0036] In an optional embodiment, the drive motor 13 and the transmission gear 12 form a rotating structure, and the driven gear 14 is symmetrically distributed about the vertical center line of the transmission gear 12. The transmission gear 12 and the driven gear 14 correspond one-to-one with the wind deflector blade 9.

[0037] In this implementation scheme: the drive motor 13 can drive the transmission gear 12 and the driven gear 14 to rotate synchronously, and realize the opening and closing of the wind deflector blade 9 through gear transmission, so as to avoid the hot air backflow caused by airflow disturbance.

[0038] Furthermore:

[0039] In an alternative embodiment, the spray pipe 5 is threaded to one of the fixed ends 16.

[0040] In this implementation plan, the spray pipe 5 can be quickly disassembled by rotating it, simplifying the maintenance process.

[0041] Furthermore:

[0042] In an optional embodiment, a connecting clamp 15 is fitted at the connection between the spray pipe 5 and the other fixed end 16, and the connecting clamps 15 are fixed to each other by bolts.

[0043] In this implementation plan, the spray pipe 5 can be separated simply by disassembling the connecting clamp 15, without having to disassemble the entire spray system, which facilitates the disassembly and maintenance of the spray pipe 5.

[0044] Working principle: First, high-temperature, high-pressure gaseous refrigerant is guided from the top of coil 2, flowing downwards within coil 2. Then, circulation pump 3 is started, drawing cooling water from the bottom of water collection tank 11 and delivering it through water supply pipe 4 to spray pipe 5. Spray nozzles 6 distributed below spray pipe 5 evenly spray water onto the surface of coil 2, forming a thin water film. Next, the high-temperature refrigerant in coil 2 exchanges heat with the sprayed water through the pipe wall. Then, axial flow fan 8 is started, drawing in outside air from the bottom of condenser shell 1, which flows over the surface of coil 2, accelerating water film evaporation. The latent heat of vaporization of water efficiently absorbs heat from the refrigerant, which is then released into the atmosphere through water vapor. Any remaining unevaporated water droplets are intercepted by baffles and fall back into the water collection tank. Box 11 forms a closed loop. At the same time, the hot air generated during the condensation process rises to the air chamber 7 and is discharged through the through hole on the air chamber 7. When the wind speed sensor 10 detects that the axial flow fan 8 has stopped working, the drive motor 13 is started. The drive motor 13 drives the transmission gear 12 to rotate, which drives the driven gears 14 on both sides to rotate synchronously. This drives the baffle blades 9 to rotate and close, blocking the air chamber 7 and the condenser housing 1, thereby preventing hot air from flowing back to the condensation area. The spray pipe 5 is disassembled and maintained regularly. By first disassembling the connecting clamp 15, the spray pipe 5 can be rotated off by thread. The spray pipe 5 and the spray head 6 are soaked in cleaning solution to unclog the spray head 6 and prevent the pipe from being blocked, which would affect the use.

[0045] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An evaporative condenser for a refrigeration unit comprising a condenser housing (1) characterised in that: The condenser housing (1) is bolted with a coil (2), and a circulation pump (3) is bolted on one side outside the condenser housing (1). A water supply pipe (4) is bolted above the circulation pump (3). Fixed ends (16) are fixed on both sides of the inner wall of the condenser housing (1). A spray pipe (5) is installed on the inner side of the fixed end (16). Several spray heads (6) are fixed below the spray pipe (5). A wind chamber (7) is fixed above the condenser housing (1). An axial flow fan (8) is installed inside the wind chamber (7). Wind speed sensors (10) are attached to both sides of the inner wall of the wind chamber (7). Several wind baffles (9) are arranged below the wind chamber (7). A transmission gear (12) is fixed to one end of one of the wind baffles (9). A drive motor (13) is installed on one side of the transmission gear (12). Both ends of the transmission gear (12) are meshed with driven gears (14).

2. An evaporative condenser for a refrigeration unit as claimed in claim 1 wherein: The circulating pump (3) is connected to the spray pipe (5) through the water delivery pipe (4), and the spray heads (6) are arranged in an array.

3. An evaporative condenser for a refrigeration unit as claimed in claim 1 wherein: A water collection tank (11) is installed at the bottom of the condenser housing (1), and the spray head (6) corresponds to the position of the coil (2) and the water collection tank (11).

4. An evaporative condenser for a refrigeration unit as claimed in claim 1, wherein: The air chamber (7) is connected to the condenser shell (1), and the axial flow fan (8) is positioned corresponding to the coil (2).

5. An evaporative condenser for a refrigeration unit as claimed in claim 1, wherein: The drive motor (13) and the transmission gear (12) form a rotating structure. The driven gear (14) is symmetrically distributed about the vertical center line of the transmission gear (12). The transmission gear (12) and the driven gear (14) correspond one-to-one with the wind deflector blade (9).

6. An evaporative condenser for a refrigeration unit as claimed in claim 1, wherein: The spray pipe (5) is threadedly connected to one of the fixed ends (16).

7. An evaporative condenser for a refrigeration unit as claimed in claim 1, wherein: A connecting clamp (15) is fitted at the connection between the spray pipe (5) and the other fixed end (16), and the connecting clamps (15) are fixed to each other by bolts.

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