Condenser secondary spraying device for refrigeration house

By designing a two-stage spray device for condensers used in cold storage, and using a PLC controller and solenoid valve to adjust the water pump speed, two-stage spraying is achieved, which solves the problem of low heat dissipation efficiency of traditional condensers under high temperature or high load and improves the refrigeration effect of cold storage.

CN224080449UActive Publication Date: 2026-04-03GUANGZHOU BINGFENG REFRIGERATION ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Traditional cold storage condensers' primary spray system cannot meet the refrigeration load demand during hot weather or when the cold storage volume increases significantly, resulting in low heat dissipation efficiency.

Method used

A two-stage spray device for condensers in cold storage was designed. The temperature is monitored by a PLC controller, and the water pump speed is adjusted by solenoid valves and water pumps to achieve a two-stage spray effect, thereby enhancing the spray coverage area and intensity of the heat exchange tubes.

Benefits of technology

It improves the heat exchange efficiency of the condenser, ensuring effective heat dissipation even under high temperature or high load conditions, avoiding nozzle clogging, and improving the refrigeration efficiency of the cold storage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The condenser two-stage spraying device comprises a shell, the top of the right side of the shell is fixedly connected with an air inlet pipe, the left side of the air inlet pipe is communicated with a flow dividing pipe, one side of the flow dividing pipe is communicated with a heat exchange pipe, one side of the heat exchange pipe is communicated with a flow converging pipe, one side of the flow converging pipe is communicated with a discharging pipe, and the discharging pipe is communicated with a water inlet pipe. And one side of the discharging pipe is fixedly connected with a temperature sensor, the bottom of the left side of the shell communicates with a water pump, one side of the water pump communicates with a drainage pipe, and one side of the drainage pipe communicates with a first spray head. A temperature value is detected through the temperature sensor while discharging is conducted, after the detected temperature value is higher than a set value, the PLC can control the electromagnetic valve to be opened, the rotating speed of the water pump can be increased, part of water is sprayed to the two sides and the bottom of the heat exchange pipe through the flow guide pipe, the connector, the fixing pipe and the second spraying head, and therefore the secondary spraying effect is achieved; therefore, the heat exchange effect can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of cold storage technology, specifically to a two-stage spray device for a condenser in cold storage. Background Technology

[0002] In industries such as cold chain logistics and food processing, cold storage is a critical infrastructure for ensuring the quality of stored goods. The condenser, as the core equipment of the cold storage refrigeration system, plays a vital role in condensing gaseous refrigerant into a liquid state and releasing heat. Its efficiency directly affects the refrigeration effect and energy consumption level of the cold storage.

[0003] Traditional cold storage condensers mostly use a single-stage spray cooling system. In this system, a single spray component sprays the condenser from top to bottom. When the ambient temperature is low and the refrigeration load of the cold storage is small, the single-stage spray system can meet the heat dissipation requirements of the condenser. However, once high temperatures are encountered, or the storage volume of the cold storage increases significantly, resulting in a significant increase in the refrigeration load, the limitations of the single-stage spray system become apparent. Therefore, we propose a two-stage spray device for cold storage condensers. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a two-stage spray device for condensers in cold storage. This device is convenient to use and solves the problem that traditional cold storage condensers mostly use a single-stage spray cooling system. In this system, a single spray component sprays the condenser from top to bottom. When the ambient temperature is low and the refrigeration load of the cold storage is small, the single-stage spray system can still meet the heat dissipation requirements of the condenser. However, once high temperatures are encountered, or the storage volume of the cold storage increases significantly, leading to a significant increase in the refrigeration load, the limitations of the single-stage spray system become apparent.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-stage spray device for a condenser in a cold storage facility, comprising a housing, an air inlet pipe fixedly connected to the top right side of the housing, a branch pipe connected to the left side of the air inlet pipe, a heat exchange pipe connected to one side of the branch pipe, a confluence pipe connected to one side of the heat exchange pipe, a discharge pipe connected to one side of the confluence pipe, a temperature sensor fixedly connected to one side of the discharge pipe, a water pump connected to the bottom left side of the housing, a drain pipe connected to one side of the water pump, a first nozzle connected to one side of the drain pipe, a solenoid valve connected to the other side of the drain pipe, a guide pipe connected to one side of the solenoid valve, a connector connected to one side of the guide pipe, a fixed pipe connected to the other side of the guide pipe, and a second nozzle connected to one side of the fixed pipe.

[0006] Preferably, a filter plate is inserted into the bottom of the front side of the housing, a connecting cylinder is fixedly connected to the top of the housing, a motor is fixedly connected to the top of the inner cavity of the connecting cylinder, and a fan blade is fixedly connected to the output end of the motor.

[0007] Preferably, a fixing seat is fixedly connected to one side of the solenoid valve, and one side of the fixing seat is fixedly connected to the housing.

[0008] Preferably, air inlet slots are provided on the front and rear sides of the inner cavity of the housing, and support legs are fixedly connected to the four corners of the bottom of the housing.

[0009] Preferably, a slot is provided at the bottom of the front side of the housing, and a sealing ring is fixedly connected to the inner wall of the slot.

[0010] Preferably, the output terminal of the temperature sensor is unidirectionally electrically connected to a PLC controller, and the output terminal of the PLC controller is unidirectionally electrically connected to a water pump, a solenoid valve, and a motor.

[0011] Preferably, the front end of the bottom left side of the housing is connected to a hollow tube, and a cover plate is threadedly connected to the left side of the hollow tube.

[0012] Preferably, a water extraction hole is provided at the bottom left side of the inner cavity of the housing, and an air guide groove is provided at the top of the inner cavity of the housing.

[0013] Compared with the prior art, this utility model provides a two-stage spray device for a condenser in cold storage, which has the following beneficial effects:

[0014] 1. This utility model sets the temperature value through an external PLC controller. During operation, gas enters the distributor pipe through the inlet pipe and is then discharged into the inner cavity of the heat exchange tube. At the same time, the water pump is started to extract water from the bottom of the inner cavity of the shell. The water is then sprayed onto the surface of the heat exchange tube through the drain pipe and the first nozzle, thus performing heat exchange. Subsequently, the water is discharged through the confluence pipe and the discharge pipe. At the same time as discharge, the temperature value is detected by the temperature sensor. When the temperature value is detected to be higher than the set value, the PLC controller will control the solenoid valve to open and increase the speed of the water pump. Through the guide pipe, connector, fixing pipe and the second nozzle, some water is sprayed onto the sides and bottom of the heat exchange tube, thus achieving a two-stage spraying effect, thereby improving the heat exchange effect.

[0015] 2. When this utility model is working, the motor is started, which drives the fan blades to rotate, thereby driving the air flow. At the same time, the circulating water can be filtered through the filter plate to prevent impurities from entering the water pump cavity, and it can also prevent the first nozzle, the second nozzle and the connector from getting clogged. Attached Figure Description

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

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 3 This is a first-view structural schematic diagram of the present invention in cross-section.

[0019] Figure 4 This is a schematic diagram of the structure of the present invention from a second perspective in cross-sectional view;

[0020] Figure 5 This is a cross-sectional view of the connecting cylinder of this utility model.

[0021] In the diagram: 1. Shell; 2. Inlet pipe; 3. Diverter pipe; 4. Heat exchanger pipe; 5. Merging pipe; 6. Discharge pipe; 7. Temperature sensor; 8. Water pump; 9. Drain pipe; 10. First nozzle; 11. Solenoid valve; 12. Guide pipe; 13. Connector; 14. Fixing pipe; 15. Second nozzle; 16. Filter plate; 17. Connecting cylinder; 18. Motor; 19. Fan blade. 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.

[0023] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0024] Example 1:

[0025] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, this utility model provides a two-stage spray device for a condenser in a cold storage, including a housing 1. An air inlet pipe 2 is fixedly connected to the top right side of the housing 1. A branch pipe 3 is connected to the left side of the air inlet pipe 2. A heat exchange pipe 4 is connected to one side of the branch pipe 3. A confluence pipe 5 is connected to one side of the heat exchange pipe 4. A discharge pipe 6 is connected to one side of the confluence pipe 5. A temperature sensor 7 is fixedly connected to one side of the discharge pipe 6. A water pump 8 is connected to the bottom left side of the housing 1. A drain pipe 9 is connected to one side of the water pump 8. A first spray head 10 is connected to one side of the drain pipe 9. A solenoid valve 11 is connected to the other side of the drain pipe 9. A guide pipe 12 is connected to one side of the solenoid valve 11. One side of the guide pipe 12 is connected to the connector 13, and the other side of the guide pipe 12 is connected to the fixing pipe 14. One side of the fixing pipe 14 is connected to the second nozzle 15. One side of the solenoid valve 11 is fixedly connected to the fixing seat, and one side of the fixing seat is fixedly connected to the housing 1. The output end of the temperature sensor 7 is unidirectionally electrically connected to the PLC controller, and the output end of the PLC controller is unidirectionally electrically connected to the water pump 8, the solenoid valve 11 and the motor 18. The front end of the bottom left side of the housing 1 is connected to the hollow pipe, and the left side of the hollow pipe is threadedly connected to the cover plate. A water suction hole is opened at the bottom left side of the inner cavity of the housing 1, and an air guide groove is opened at the top of the inner cavity of the housing 1.

[0026] The specific function of this technical solution is as follows: The temperature value is set by the external PLC controller. During operation, gas enters the diversion pipe 3 through the inlet pipe 2 and is then discharged into the inner cavity of the heat exchange tube 4. Simultaneously, the water pump 8 is started to extract water from the bottom of the inner cavity of the housing 1. The water is then sprayed onto the surface of the heat exchange tube 4 through the drain pipe 9 and the first nozzle 10, thus performing heat exchange. Subsequently, the water is discharged through the confluence pipe 5 and the discharge pipe 6. Simultaneously, the temperature value is detected by the temperature sensor 7. If the detected temperature value is higher than the set value, the PLC controller will control the solenoid valve 11 to open and increase the speed of the water pump 8. Through the guide pipe 12, connector 13, fixing pipe 14, and second nozzle 15, some water is sprayed onto the sides and bottom of the heat exchange tube 4, thus achieving a two-stage spraying effect and improving the heat exchange efficiency.

[0027] Example 2:

[0028] Based on Embodiment 1, this utility model is as follows: Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, a filter plate 16 is inserted into the bottom of the front side of the housing 1, a connecting cylinder 17 is fixedly connected to the top of the housing 1, a motor 18 is fixedly connected to the top of the inner cavity of the connecting cylinder 17, a fan blade 19 is fixedly connected to the output end of the motor 18, air inlet slots are provided on the front and rear sides of the inner cavity of the housing 1, support legs are fixedly connected to the four corners of the bottom of the housing 1, and a slot is provided on the bottom of the front side of the housing 1, and a sealing ring is fixedly connected to the inner wall of the slot.

[0029] The specific function of this technical solution is as follows: while working, the motor 18 is started, and the fan blade 19 is driven to rotate by the motor 18, which can drive the air flow. At the same time, the circulating water can be filtered by the filter plate 16 to prevent impurities from entering the inner cavity of the water pump 8, and to prevent the first nozzle 10, the second nozzle 15 and the connector 13 from being blocked.

[0030] Working principle: The temperature value is set by the external PLC controller. During operation, gas enters the diversion pipe 3 through the inlet pipe 2 and is then discharged into the inner cavity of the heat exchange tube 4. At the same time, the water pump 8 is started to extract the water from the bottom of the inner cavity of the housing 1. The water is then sprayed onto the surface of the heat exchange tube 4 through the drain pipe 9 and the first nozzle 10 to perform heat exchange. Subsequently, the water is discharged through the confluence pipe 5 and the discharge pipe 6. At the same time, the temperature value is detected by the temperature sensor 7. When the detected temperature value is higher than the set value, the PLC controller will control the solenoid valve 11 to open and increase the speed of the water pump 8. Through the guide pipe 12, connector 13, fixing pipe 14 and second nozzle 15, some water is sprayed onto the sides and bottom of the heat exchange tube 4, thereby achieving a two-stage spraying effect and improving the heat exchange efficiency.

[0031] While working, the motor 18 is started, which drives the fan blade 19 to rotate, thereby driving the air flow. At the same time, the circulating water is filtered through the filter plate 16 to prevent impurities from entering the water pump 8 cavity, and to prevent the first nozzle 10, the second nozzle 15 and the connector 13 from clogging.

[0032] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0033] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A two-stage spray device for a condenser in a cold storage facility, comprising a housing (1), characterized in that: An air inlet pipe (2) is fixedly connected to the top right side of the housing (1). A branch pipe (3) is connected to the left side of the air inlet pipe (2). A heat exchange pipe (4) is connected to one side of the branch pipe (3). A confluence pipe (5) is connected to one side of the heat exchange pipe (4). A discharge pipe (6) is connected to one side of the confluence pipe (5). A temperature sensor (7) is fixedly connected to one side of the discharge pipe (6). A water pump (8) is connected to the bottom left side of the housing (1). A drain pipe (9) is connected to one side of the pump (8), a first nozzle (10) is connected to one side of the drain pipe (9), a solenoid valve (11) is connected to the other side of the drain pipe (9), a guide pipe (12) is connected to one side of the solenoid valve (11), a connector (13) is connected to one side of the guide pipe (12), a fixed pipe (14) is connected to the other side of the guide pipe (12), and a second nozzle (15) is connected to one side of the fixed pipe (14).

2. The two-stage spray device for a condenser in a cold storage facility according to claim 1, characterized in that: A filter plate (16) is inserted into the bottom of the front side of the housing (1), a connecting cylinder (17) is fixedly connected to the top of the housing (1), a motor (18) is fixedly connected to the top of the inner cavity of the connecting cylinder (17), and a fan blade (19) is fixedly connected to the output end of the motor (18).

3. The two-stage spray device for a condenser in a cold storage facility according to claim 1, characterized in that: The solenoid valve (11) is fixedly connected to a fixed seat on one side, and the fixed seat is fixedly connected to the housing (1) on one side.

4. A two-stage spray device for a condenser in a cold storage facility according to claim 1, characterized in that: Air inlet slots are provided on the front and rear sides of the inner cavity of the housing (1), and support legs are fixedly connected to the four corners of the bottom of the housing (1).

5. A two-stage spray device for a condenser in a cold storage facility according to claim 1, characterized in that: The bottom of the front side of the housing (1) is provided with a slot, and a sealing ring is fixedly connected to the inner wall of the slot.

6. A two-stage spray device for a condenser in a cold storage facility according to claim 1, characterized in that: The output terminal of the temperature sensor (7) is unidirectionally electrically connected to a PLC controller, and the output terminal of the PLC controller is unidirectionally electrically connected to a water pump (8), a solenoid valve (11), and a motor (18).

7. A two-stage spray device for a condenser in a cold storage facility according to claim 1, characterized in that: The front end of the bottom left side of the housing (1) is connected to a hollow tube, and a cover plate is threaded to the left side of the hollow tube.

8. A two-stage spray device for a condenser in a cold storage facility according to claim 1, characterized in that: A water extraction hole is provided at the bottom left side of the inner cavity of the housing (1), and an air guide groove is provided at the top of the inner cavity of the housing (1).