Parallel evaporative condenser

By introducing a filtration system into the condenser, the problem of clogging caused by impurities in the water was solved, achieving stable operation and efficient heat exchange of the condenser.

CN224261992UActive Publication Date: 2026-05-19GUANGZHOU AOTAI REFRIGERATION EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU AOTAI REFRIGERATION EQUIP
Filing Date
2025-07-01
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the operation of existing parallel-type evaporative condensers, impurities in the water can easily cause blockages in the water supply pipes, spray pipes, and nozzles, affecting the normal operation of the equipment and its heat exchange efficiency.

Method used

A filtration system is introduced into the condenser to absorb and filter external air through the air inlet slot. A water pump draws water to the filter for further filtration. The filtered water then flows through a water pipe to the spray head, forming fine water droplets that are sprayed onto the condenser coil. As the high-temperature gas passes through the condenser coil, heat is transferred to the water film, which evaporates into water vapor and is then discharged, thus enhancing the heat exchange efficiency.

Benefits of technology

This effectively prevents impurities from entering the condenser, thus preventing blockages, improving the stability and heat exchange efficiency of the condenser, and ensuring the continuous and efficient operation of the equipment.

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Abstract

The utility model provides a parallel evaporative condenser, which belongs to the technical field of refrigeration equipment and comprises a shell, exhaust fans are symmetrically arranged at the top end of the shell, a water collecting plate is arranged at the top end in the shell, a net pipe is arranged at the bottom end of the water collecting plate, and spray heads are arranged at the bottom end of the water collecting plate. The end, penetrating through the shell, of the water conveying pipe is connected with the top end of the filter, a water inlet pipe at one end of the filter is connected with the water pump, a water inlet pipe of the water pump penetrates through the bottom end of the shell, and a condensing coil is arranged at the bottom end of the net pipe. The air purifier has the advantages that external air is absorbed through the air inlet groove and filtered through the filter screen plate, water at the bottom end of the shell is pumped into the filter through the water pump to be filtered, and the filtered water is conveyed into the net pipe through the water conveying pipe; and finally, fine water drops formed by the spraying head are uniformly sprayed on the condensing coil and the gas for cooling treatment.
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Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and more specifically, to a parallel evaporative condenser. Background Technology

[0002] An evaporative condenser is a heat exchange device used for cooling cold storage. It consists of components such as a fan, condenser coil, heat exchange fins, and housing. The evaporative condenser is the main heat exchange equipment in a refrigeration system. Its working principle is as follows: the superheated and high-pressure refrigerant gas discharged from the compressor in the refrigeration system passes through the condenser coil in the evaporative condenser, allowing the high-temperature gaseous refrigerant to exchange heat with the sprayed water and air outside the coil.

[0003] The parallel evaporative condenser disclosed in application number CN202421872961.7 is also an increasingly mature technology. Through the design of the moving unit, the condensing unit can move freely inside the housing, making it easier to clean and maintain components such as the condenser tubes. Operators can easily remove the condensing unit for cleaning, effectively removing scale and impurities, maintaining the condenser's high-efficiency operation, and improving maintenance convenience. At the same time, regular cleaning ensures that the condenser maintains good heat exchange performance, avoiding efficiency decline due to scale buildup.

[0004] Based on this, we agree with the advantages of the aforementioned products, but the following drawbacks still exist:

[0005] In use, this type of condenser pumps water from the water collection tank, which then flows through the water supply pipe, water collection box, and spray pipe before being sprayed out from the nozzle. Since the water is not filtered, it may contain impurities. Direct injection of this water could easily cause blockages in the water supply pipe, spray pipe, and nozzle. Utility Model Content

[0006] The purpose of this invention is to provide a parallel evaporative condenser to solve the problem of water filtration mentioned in the background art.

[0007] This utility model embodiment provides a parallel evaporative condenser, including a housing. A symmetrical exhaust casing is arranged at the top of the housing. A fan bracket and an exhaust fan are arranged inside the exhaust casing. Protective covers are threadedly connected to the four corners of the bottom of the exhaust casing. A water collection plate is arranged at the top of the inner part of the housing. A mesh tube is arranged at the bottom of the water collection plate. A spray head is arranged at the bottom of each mesh tube. A water supply pipe is fixedly connected to the middle of one end of the mesh tube. One end of the water supply pipe, passing through the housing, is connected to the top of a filter. The inlet pipe at one end of the filter is connected to a water pump. The inlet pipe of the water pump passes through the bottom of the housing. A condensation coil is arranged at the bottom of the mesh tube. The inlet and outlet pipes of the condensation coil are located on the same side, passing through one end of the housing. Air inlet slots are opened on three sides of the housing near the bottom. A filter screen is arranged inside each air inlet slot.

[0008] In this embodiment, external air is absorbed through the air inlet slot and filtered through the filter screen. A water pump draws water from the bottom of the housing into the filter for filtration. The filtered water is then transported through a water supply pipe to the mesh pipe, where it is finally sprayed evenly onto the condenser coil and the gas by a spray nozzle to cool it down. The water droplets on the surface of the condenser coil form a water film and fall onto the bottom of the housing. High-temperature, high-pressure gas enters the condenser coil through the inlet pipe. As the gas flows through the pipe, it transfers heat to the water film, which evaporates into water vapor. The gas inside the condenser coil gradually transforms into liquid refrigerant as it cools and flows out from the outlet pipe. The evaporated water vapor is exhausted by the exhaust fan, and the liquid water vapor passes through the water collection plate for cooling and dehydration.

[0009] In one embodiment of this utility model, heat dissipation fins are evenly distributed on the outside of the condenser coil, and a cover plate is provided on the outside of the filter screen plate by hinges. A sealing gasket matching the size of the air inlet slot is provided inside the cover plate. Multiple magnet blocks are provided at the top inside the cover plate. The magnet blocks are attracted by the shell by generating magnetism. A handle is provided at the middle of the top outside of the cover plate.

[0010] In this design, the heat sink effectively increases the contact area between the condenser coil and the air. The cover plate protects the filter plate when not in use. The sealing gasket ensures a good seal when the cover plate is closed. The cover plate is reliably attached to the housing by a magnet. The handle makes it easy to open or close the cover plate.

[0011] In one embodiment of this utility model, a fixing plate is provided at the bottom of the housing, which is located between the filter and the water pump, and a fixing bracket is provided in the middle of the water pipe. One end of the fixing bracket is fixed to one end of the housing by screw thread installation.

[0012] In this solution, the filter and water pump are fixed by a fixing plate, the fixing bracket enhances the stability of the water supply pipe, and the screw thread installation method ensures the disassembly or installation of the fixing bracket.

[0013] In one embodiment of this utility model, a matching drainage plate is provided at the bottom of the inner side of the housing, an observation window is provided at one end of the housing located on the fixed plate, a drainage pipe is provided on the side of the observation window, and a control valve is provided on the outside.

[0014] In this design, a drainage plate guides the water, an observation window allows staff to directly observe the water volume inside the casing, and a drainage pipe works in conjunction with a control valve to control the drainage flow rate inside the drainage pipe.

[0015] In one embodiment of this utility model, the inner sidewall of the housing is provided with support blocks at the four corners of the mesh tube and the condenser coil, and the bottom corner of the housing is provided with casters with wheel brakes.

[0016] In this solution, a support structure is added to the network pipe and condenser coil by a support block, and the omnidirectional wheels allow for convenient and flexible movement of the housing, and then the wheel brakes are locked.

[0017] In one embodiment of this utility model, a switch panel is provided on one side of the housing, and a set of exhaust fan switches and water pump switches are respectively provided on one side of the switch panel. The switch panel is electrically connected to an external power supply.

[0018] In this solution, power is supplied to the electrical equipment through a switch panel, and independent switches provide independent protection for the electrical equipment.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] External air is drawn in through the air inlet slot and filtered through a filter screen to prevent impurities from entering the housing. A water pump draws water from the bottom of the housing into the filter for further filtration, preventing blockage of the mesh tube, spray nozzles, and water supply pipes. The filtered water is then transported through the water supply pipe to the mesh tube, where it is sprayed evenly onto the condenser coil and the gas by the spray nozzles to cool it down. Continuous spraying causes the water droplets to form a water film on the surface of the condenser coil and drip onto the bottom of the housing. High-temperature, high-pressure gas enters the condenser coil through the inlet pipe. As the gas flows through the pipe, it transfers heat to the water film, which evaporates into water vapor, absorbing heat. The heat sink effectively increases the contact area between the condenser coil and the air, enhancing heat exchange efficiency. The gas inside the condenser coil gradually transforms into liquid refrigerant as it cools and flows out through the outlet pipe. The evaporated water vapor is exhausted by the exhaust fan. The liquid water vapor passes through the water collection plate for cooling and dehydration, and continues to drip into the housing for collection. Attached Figure Description

[0021] 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:

[0022] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the condenser of this utility model;

[0023] Figure 2 This is a schematic diagram of the cross-sectional structure of the shell of this utility model;

[0024] Figure 3 This is a schematic diagram of the disassembly structure of the exhaust fan of this utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the network tube of this utility model;

[0026] Figure 5 This is a schematic diagram of the structure of the condenser coil of this utility model.

[0027] In the diagram: 100, Housing; 110, Exhaust housing; 111, Fan bracket; 112, Exhaust fan; 113, Protective cover; 114, Water collection plate; 115, Mesh pipe; 116, Spray head; 117, Water supply pipe; 118, Filter; 119, Water pump; 120, Condensate coil; 121, Air inlet slot; 122, Filter screen; 123, Heat sink; 124, Cover plate; 125, Sealing gasket; 126, Magnet block; 127, Fixing plate; 128, Fixing bracket; 129, Drain plate; 130, Observation window; 131, Drain pipe; 132, Support block; 133, Caster wheel; 134, Switch panel. Detailed Implementation

[0028] 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.

[0029] Example

[0030] Please see Figure 1-5This utility model provides a parallel evaporative condenser, including a shell 100. A symmetrical exhaust casing 110 is arranged at the top of the shell 100. A fan bracket 111 is arranged inside the exhaust casing 110, and an exhaust fan 112 is installed inside. Protective covers 113 are threadedly connected to the four corners of the bottom of the exhaust casing 110. A water collection plate 114 is arranged at the top of the interior of the shell 100. A mesh tube 115 is arranged at the bottom of the water collection plate 114. A spray head 116 is arranged at the bottom of each mesh tube 115. One end of the mesh tube 115... A water supply pipe 117 is fixedly connected to the housing 100. One end of the water supply pipe 117 passes through the housing 100 and is connected to the top of the filter 118. The water inlet pipe at one end of the filter 118 is connected to the water pump 119. The water inlet pipe of the water pump 119 passes through the bottom of the housing 100. A condenser coil 120 is provided at the bottom of the mesh pipe 115. The inlet and outlet pipes of the condenser coil 120 are located on the same side and pass through one end of the housing 100. Air inlet slots 121 are provided on three sides of the housing 100 near the bottom. Filter screens 122 are provided inside the air inlet slots 121.

[0031] In one specific embodiment, please refer to Figure 1 By activating the exhaust fan 112 and water pump 119, external air is drawn into the air inlet sump 121 and filtered through the filter screen 122 to prevent external impurities from entering the interior of the housing 100. The water pump 119 draws water from the bottom of the housing 100 into the filter 118 for filtration, preventing blockage of the mesh pipe 115, spray head 116, and water supply pipe 117. The filtered water is then transported through the water supply pipe 117 to the mesh pipe 115, and finally sprayed evenly by the spray head 116 into fine water droplets, which are then sprayed onto the condenser coil 120 and the gas for cooling. Continuous spraying causes the water droplets to form a water film on the surface of the condenser coil 120 and drip onto the housing. At the bottom of body 100, high-temperature and high-pressure gas enters condenser coil 120 through the inlet pipe. As the gas flows through the pipe, it transfers heat to the water film. The water film evaporates into water vapor, absorbing heat. The gas inside condenser coil 120 gradually transforms into liquid refrigerant as it cools and flows out from the outlet pipe. The evaporated water vapor is ventilated and discharged by exhaust fan 112. The liquid water vapor passes through water collection plate 114, where it can be cooled and dehydrated, and can continue to drip into the housing 100 for collection. Exhaust housing 110 is used to install fan bracket 111, and protective cover 113 is used to protect exhaust fan 112 from damage by external objects.

[0032] Please see Figure 5The condenser coil 120 has heat sinks 123 evenly distributed on its exterior. The filter plate 122 is hinged to the outside of each cover plate 124. The inside of each cover plate 124 is provided with a sealing gasket 125 that matches the size of the air inlet slot 121. Multiple magnet blocks 126 are provided at the top of the inside of each cover plate 124. The magnet blocks 126 are attracted by the magnetic attraction with the housing 100. A handle is provided at the middle of the top of the outer side of the cover plate 124.

[0033] In one specific embodiment, please refer to Figure 5 The heat sink 123 can effectively increase the contact area between the condenser coil 120 and the air, thereby enhancing the heat exchange efficiency. The cover 124 is used to protect the filter screen 122 when not in use. The sealing gasket ensures a good seal when the cover 124 is closed. The cover 124 is reliably attached to the housing 100 by the magnet 126. The handle makes it easy to open or close the cover 124.

[0034] Please see Figure 2 The housing 100 is provided with a fixing plate 127 at the bottom of the filter 118 and the water pump 119, and a fixing bracket 128 is provided in the middle of the water pipe 117. The fixing bracket 128 is fixed to one end of the housing 100 by screw thread installation.

[0035] In one specific embodiment, please refer to Figure 2 The filter 118 and the water pump 119 are fixed by the fixing plate 127. The fixing bracket 128 enhances the stability of the water supply pipe 117 and ensures that the water supply pipe 117 will not be displaced due to vibration or water flow when the water pump 119 is working. The screw thread installation method can ensure the disassembly or installation of the fixing bracket 128.

[0036] Please see Figure 2 The bottom of the housing 100 is provided with a matching drainage plate 129. The housing 100 is provided with an observation window 130 at one end of the fixed plate 127. A drainage pipe 131 is provided on the side of the observation window 130 and a control valve is provided on the outside.

[0037] In one specific embodiment, please refer to Figure 2 The drainage plate 129 guides the water, and the observation window 130 allows staff to directly observe the water volume inside the housing 100. The drainage pipe 131 works in conjunction with a control valve, which controls the drainage flow rate inside the drainage pipe 131.

[0038] Please see Figure 2 Support blocks 132 are provided at the four corners of the inner sidewall of the housing 100 where the network tube 115 and the condenser coil 120 are located, and universal wheels 133 with wheel brakes are provided at the four corners of the bottom of the housing 100.

[0039] In one specific embodiment, please refer to Figure 2 The support block 132 adds a support structure to the mesh pipe 115 and the condenser coil 120, which enhances the fixation and stability of the mesh pipe 115 and the condenser coil 120 in the housing 100. The caster wheel 133 allows the housing 100 to be moved flexibly and conveniently. Then the wheel brake is locked to prevent the housing 100 from moving easily and to ensure the safety of the housing 100.

[0040] Please see Figure 2 A switch panel 134 is provided on one side of the housing 100. A set of exhaust fan switches and water pump switches are respectively provided on one side of the switch panel 134. The switch panel 134 is electrically connected to an external power supply.

[0041] In one specific embodiment, please refer to Figure 2 The switch panel 134 provides power to the electrical equipment, and the independent switch provides independent protection for the electrical equipment.

[0042] The parallel-type evaporative condenser provided by this utility model is used as follows:

[0043] Before use: The staff should connect the external power supply, turn on the switch panel 134, and then turn on the fan switch and water pump switch in sequence. Then pull the handle to open the cover 124.

[0044] In use: The air inlet slot 121 absorbs external air, which is then filtered by the filter screen 122 to prevent external impurities from entering the interior of the housing 100. The water pump 119 draws water from the bottom of the housing 100 into the filter 118 for filtration, preventing blockage of the mesh pipe 115, spray head 116, and water supply pipe 117. The filtered water is then transported through the water supply pipe 117 to the mesh pipe 115, and finally sprayed evenly by the spray head 116 into fine water droplets, which are then sprayed onto the condenser coil 120 and the gas for cooling. Continuous spraying causes the water droplets to form a water film on the surface of the condenser coil 120 and drip onto the housing 100. At the bottom, high-temperature and high-pressure gas enters the condenser coil 120 through the inlet pipe. As the gas flows through the pipe, it transfers heat to the water film. The water film evaporates into water vapor, absorbing heat. The heat sink 123 can effectively increase the contact area between the condenser coil 120 and the air, enhancing the heat exchange efficiency. The gas inside the condenser coil 120 gradually turns into liquid refrigerant as it cools and flows out from the outlet pipe. The evaporated water vapor is ventilated and discharged by the exhaust fan 112. The liquid water vapor passes through the water collection plate 114, where it can be cooled and dehydrated, and can continue to drip into the casing 100 for collection.

[0045] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A parallel-type evaporative condenser, characterized in that, include: The device includes a housing (100), with exhaust shells (110) symmetrically arranged at the top of the housing (100). A fan bracket (111) is installed inside the exhaust shell (110), and an exhaust fan (112) is installed inside. Protective covers (113) are threadedly connected to the four corners of the bottom of the exhaust shell (110). A water collection plate (114) is installed at the top of the interior of the housing (100). A mesh pipe (115) is installed at the bottom of the water collection plate (114). Each mesh pipe (115) has a spray nozzle (116) at its bottom. A water supply pipe (11) is fixedly connected to the middle of one end of each mesh pipe (115). 7) The water supply pipe (117) passes through the housing (100) and is connected to the top of the filter (118). The water inlet pipe at one end of the filter (118) is connected to the water pump (119). The water inlet pipe of the water pump (119) passes through the bottom of the housing (100). The bottom of the mesh pipe (115) is provided with a condenser coil (120). The inlet pipe and outlet pipe of the condenser coil (120) are both located on the same side and pass through one end of the housing (100). The three sides of the housing (100) near the bottom are provided with air inlet slots (121). The air inlet slots (121) are all provided with filter screens (122).

2. A parallel-type evaporative condenser according to claim 1, characterized in that: The condenser coil (120) has heat sinks (123) evenly distributed on its exterior. The filter screen (122) is hinged to the outside of each cover plate (124). The inside of each cover plate (124) is provided with a sealing gasket (125) that matches the size of the air inlet slot (121). The top of each cover plate (124) is provided with multiple magnet blocks (126). The magnet blocks (126) are attracted by the magnetic attraction with the housing (100). The top center of the outer side of the cover plate (124) is provided with a handle.

3. A parallel-type evaporative condenser according to claim 1, characterized in that: The housing (100) is provided with a fixing plate (127) at the bottom of the filter (118) and the water pump (119), and a fixing bracket (128) is provided in the middle of the water pipe (117). The fixing bracket (128) is fixed to one end of the housing (100) by screw thread installation.

4. A parallel-type evaporative condenser according to claim 1, characterized in that: The bottom of the housing (100) is provided with a matching drainage plate (129). The housing (100) is provided with an observation window (130) at one end of the fixed plate (127). The observation window (130) is provided with a drainage pipe (131) on its side and a control valve is provided on its exterior.

5. A parallel-type evaporative condenser according to claim 1, characterized in that: The inner sidewall of the housing (100) is provided with support blocks (132) at the four corners of the mesh tube (115) and the condenser coil (120), and the bottom corner of the housing (100) is provided with casters (133) with wheel brakes.

6. A parallel-type evaporative condenser according to claim 1, characterized in that: A switch panel (134) is provided on one side of the housing (100). A set of exhaust fan switches and water pump switches are respectively provided on one side of the switch panel (134). The switch panel (134) is electrically connected to an external power supply.