Cooling device and refrigerating system of water chilling unit

Abstract

The utility model discloses a water chilling unit cooling device and a refrigerating system and relates to the technical field of heating ventilation air conditioners, the water chilling unit cooling device is applied to the refrigerating system and comprises a cooling tower, a transmission pump and a cooling assembly, and the cooling tower is used for being connected with a water chilling unit and cooling a cooling medium flowing through the water chilling unit; the transmission pump is connected with an outlet of the cooling tower, and the transmission pump is used for transporting a cooling medium in the cooling tower to a water chilling unit; the cooling assembly is connected with the inlet end of the cooling tower and used for reducing the temperature of the inlet end of the cooling tower. According to the technical scheme provided by the utility model, the problems that when hot and humid air at the heat dissipation outlet at the top of the cooling tower encounters cold air, rime fog is formed, bad impression is caused, and the rime fog phenomenon not only influences the visual effect, but also possibly interferes with the surrounding environment to a certain extent can be solved.

Description

Technical Field

[0001] This utility model relates to the field of heating, ventilation and air conditioning technology, and in particular to a chiller unit cooling device and refrigeration system. Background Technology

[0002] A conventional refrigeration system's chiller unit cooling device consists of a cooling tower, transfer pump, piping, and valves at the equipment's inlet and outlet. It is primarily used for cooling the condenser of water-cooled chillers. During normal operation, this system dissipates the heat from the cooling water into the outside air through the cooling tower, thereby lowering the cooling water temperature to meet the chiller unit's condenser temperature requirements and ensuring the chiller unit operates efficiently and stably.

[0003] However, when the hot, humid air from the cooling tower's top vents encounters cold air, it forms a white fog, creating an unpleasant visual effect. This fog not only affects the visual appeal but can also disturb the surrounding environment. Therefore, eliminating the white fog during the transitional seasons when cooling towers are in operation is a pressing technical problem that needs to be solved. Utility Model Content

[0004] The main purpose of this utility model is to propose a cooling device and refrigeration system for a chiller unit, which aims to solve the problem that when hot and humid air at the heat dissipation outlet of a cooling tower encounters cold air, it forms white fog, causing an unpleasant appearance. This white fog phenomenon not only affects the visual effect but may also cause some interference to the surrounding environment.

[0005] To achieve the above objectives, the present invention proposes a chiller unit cooling device, comprising a cooling tower, a transfer pump, and a cooling component. The cooling tower is used to connect to the chiller unit and cool the cooling medium flowing through the chiller unit. The transfer pump is connected to the outlet of the cooling tower and is used to transport the cooling medium in the cooling tower to the chiller unit. The cooling component is connected to the inlet end of the cooling tower and is used to reduce the temperature at the inlet end of the cooling tower.

[0006] In one embodiment, the cooling component is equipped with a mixing pump that connects the outlet and inlet of the cooling tower.

[0007] In one embodiment, the cooling component is provided with a first temperature sensor located at the inlet end of the cooling tower, and the first temperature sensor is electrically connected to the mixing pump.

[0008] In one embodiment, the chiller unit cooling device is equipped with a second temperature sensor, which is located at the outlet end of the cooling tower and is electrically connected to the mixing pump.

[0009] In one embodiment, the mixing pump is a variable frequency mixing pump, which can adjust its operating frequency according to the temperature detected by the first temperature sensor.

[0010] In one embodiment, the chiller unit cooling device further includes a regulating valve for connecting the outlet end of the chiller unit with the inlet end of the transfer pump, the regulating valve being able to introduce the cooling medium flowing through the chiller unit into the transfer pump.

[0011] In one embodiment, the chiller unit cooling device is equipped with a third temperature sensor, which is used to detect the inlet temperature of the chiller unit, and the third temperature sensor is electrically connected to the regulating valve.

[0012] In one embodiment, the chiller unit cooling device is equipped with a fourth temperature sensor, which is used to detect the outlet temperature of the chiller unit, and the fourth temperature sensor is electrically connected to the regulating valve.

[0013] In one embodiment, the regulating valve is an electrically operated linear regulating valve.

[0014] This utility model also proposes a refrigeration system, including a chiller unit cooling device.

[0015] This utility model's chiller unit cooling device achieves the dual goals of efficient cooling and white mist elimination through a rational configuration of the cooling tower, transfer pump, and cooling components. Specifically, the cooling tower dissipates the heat of the cooling medium (such as cooling water) flowing through the chiller unit into the outside air. The transfer pump, connected to the outlet of the cooling tower, is responsible for transporting the cooled medium back to the chiller unit, ensuring the circulation of the cooling medium. The cooling components, connected to the inlet of the cooling tower, reduce the temperature of the inlet medium by heat exchange or mixing. For example, the cooling components can be a spray device that pre-cools the cooling medium entering the cooling tower by spraying low-temperature water; or they can be a mixing pump device that mixes the cooling medium at the outlet of the cooling tower with the cooling medium at the inlet, reducing the medium temperature. By installing the cooling components at the inlet of the cooling tower, the inlet medium temperature is effectively reduced, thereby reducing the white mist phenomenon generated at the top of the cooling tower during operation and improving the visual effect and environmental quality around the cooling tower. The introduction of cooling components improves the cooling efficiency of the cooling tower, enabling the cooling medium to reach a lower temperature before entering the chiller unit, thereby improving the overall operating efficiency of the chiller unit and reducing energy consumption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of an embodiment of the cooling device for a chiller unit provided by this utility model.

[0018] Explanation of icon numbers:

[0019] 100. Chiller unit cooling device; 1. Cooling tower; 2. Chiller unit; 3. Transfer pump; 4. Cooling component; 41. Mixing pump; 42. First temperature sensor; 5. Second temperature sensor; 6. Regulating valve; 7. Third temperature sensor; 8. Fourth temperature sensor.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] This utility model proposes a cooling device 100 for a water chiller unit.

[0025] Please see Figure 1 In one embodiment of the present invention, the chiller unit cooling device 100 includes a cooling tower 1, a transfer pump 3, and a cooling component 4. The cooling tower 1 is used to connect to the chiller unit 2 and cool the cooling medium flowing through the chiller unit 2. The transfer pump 3 is connected to the outlet of the cooling tower 1 and is used to transport the cooling medium in the cooling tower 1 to the chiller unit 2. The cooling component 4 is connected to the inlet end of the cooling tower 1 and is used to reduce the temperature at the inlet end of the cooling tower 1.

[0026] In this embodiment, the chiller unit cooling device 100 achieves the dual goals of efficient cooling and white mist elimination through the rational configuration of the cooling tower 1, transfer pump 3, and cooling component 4. Specifically, the cooling tower 1 dissipates the heat of the cooling medium (such as cooling water) flowing through the chiller unit 2 into the outside air through its internal evaporative cooling device or convection cooling device. The transfer pump 3 is connected to the outlet end of the cooling tower 1 and is responsible for transporting the cooled medium back to the chiller unit 2, ensuring the circulation of the cooling medium. The cooling component 4 is connected to the inlet end of the cooling tower 1 and uses various methods to reduce the temperature of the medium at the inlet of the cooling tower 1. For example, the cooling component 4 can be a spray device that pre-cools the cooling medium entering the cooling tower 1 by spraying low-temperature water; it can also be an air-cooling device that uses a fan to introduce low-temperature air into the inlet of the cooling tower 1 to reduce the medium temperature. In addition, the cooling component 4 can also be a mixing pump device that mixes the low-temperature cooling medium at the outlet of the cooling tower 1 with the high-temperature cooling medium at the inlet of the cooling tower 1 to reduce the medium temperature.

[0027] By installing a cooling component 4 at the inlet of cooling tower 1, the inlet medium temperature of cooling tower 1 is effectively reduced, thereby reducing the white mist phenomenon generated at the top of cooling tower 1 during operation and improving the visual effect and environmental quality around cooling tower 1. Secondly, the introduction of cooling component 4 improves the cooling efficiency of cooling tower 1, allowing the cooling medium to reach a lower temperature before entering chiller unit 2, thus improving the overall operating efficiency of chiller unit 2 and reducing energy consumption. In addition, this device has good adaptability and scalability, and suitable cooling components 4, such as spray devices, air-cooled devices, or mixing pump devices, can be selected according to different application scenarios and environmental conditions to further optimize the cooling effect.

[0028] In one embodiment of this utility model, please refer to Figure 1 The cooling component 4 is equipped with a mixing pump 41, which is connected to the outlet and inlet of the cooling tower 1.

[0029] In one embodiment, the cooling component 4 pre-cools the inlet medium of the cooling tower 1 by setting a mixing pump 41. The inlet of the mixing pump 41 is connected to the outlet of the cooling tower 1, and the outlet is connected to the inlet of the cooling tower 1. Specifically, the mixing pump 41 draws out the low-temperature cooling medium (such as cooling water) that has been cooled at the outlet of the cooling tower 1 and delivers it to the inlet of the cooling tower 1 to mix with the high-temperature cooling medium that is about to enter the cooling tower 1. In this way, the high-temperature cooling medium is pre-cooled before entering the cooling tower 1, thereby reducing the temperature of the inlet medium of the cooling tower 1. The mixing pump 41 can adjust the flow rate according to actual needs to achieve the best mixing effect. The operation of the mixing pump 41 can be automatically controlled by a temperature sensor and controller. When the temperature of the inlet medium of the cooling tower 1 is detected to be too high, the mixing pump 41 automatically starts to increase the mixing ratio of low-temperature water; when the temperature drops to the set value, the mixing pump 41 automatically reduces the flow rate or stops operating. The mixing pump 41 can also be used in conjunction with other cooling components 4 (such as spray devices or air-cooling devices) to further optimize the cooling effect.

[0030] By incorporating a mixing pump 41 into the cooling assembly 4, the chiller unit cooling device 100 of this embodiment can significantly reduce the temperature of the inlet medium of the cooling tower 1, effectively reducing the white mist phenomenon generated at the top of the cooling tower 1 during operation, and improving the visual effect and environmental quality around the cooling tower 1. The introduction of the mixing pump 41 not only improves the cooling efficiency of the cooling tower 1, allowing the cooling medium to reach a lower temperature before entering the chiller unit 2, thereby improving the overall operating efficiency of the chiller unit 2 and reducing energy consumption, but also enhances the system's flexibility and reliability. The automatic control function of the mixing pump 41 can flexibly adjust the flow rate according to real-time temperature changes, ensuring the system is always in optimal operating condition and further optimizing the cooling effect.

[0031] In one embodiment of this utility model, please refer to Figure 1 The cooling component 4 is equipped with a first temperature sensor 42, which is located at the inlet end of the cooling tower 1 and is electrically connected to the mixing pump 41.

[0032] In this embodiment, the cooling component 4 achieves real-time monitoring and precise control of the inlet medium temperature of the cooling tower 1 by setting a first temperature sensor 42. The first temperature sensor 42 is installed at the inlet end of the cooling tower 1 and can accurately measure the temperature of the cooling medium about to enter the cooling tower 1, and transmit the temperature signal to the control system of the mixing pump 41 in real time. Specifically, when the first temperature sensor 42 detects that the inlet medium temperature is higher than a preset value, the mixing pump 41 automatically starts or increases the flow rate to introduce the low-temperature cooling medium at the outlet of the cooling tower 1 into the inlet end for mixing, thereby reducing the temperature of the inlet medium; conversely, when the temperature is lower than the preset value, the mixing pump 41 automatically reduces the flow rate or stops operating. In addition, the electrical connection between the first temperature sensor 42 and the mixing pump 41 can be achieved through wired or wireless communication. The control system of the mixing pump 41 can adopt a PLC controller or an intelligent temperature control module to further improve the automation level and operating accuracy of the system.

[0033] By incorporating a first temperature sensor 42 into the cooling component 4, the chiller unit cooling device 100 of this embodiment can achieve real-time monitoring and automatic control of the inlet medium temperature of the cooling tower 1, significantly improving the system's intelligence level and operating efficiency. The precise measurement by the first temperature sensor 42 and the automatic adjustment function of the mixing pump 41 ensure that the inlet medium temperature of the cooling tower 1 remains stable within the set range, effectively reducing the white fog phenomenon generated at the top of the cooling tower 1 during operation and improving the visual effect and environmental quality around the cooling tower 1. For example, during transitional seasons or when ambient temperature changes significantly, the first temperature sensor 42 can respond promptly to temperature changes, and through the automatic adjustment of the mixing pump 41, maintain a stable inlet medium temperature of the cooling tower 1, thereby improving the cooling efficiency of the cooling tower 1 and reducing the energy consumption of the chiller unit 2. Furthermore, this automatic control method reduces manual intervention, lowers operational difficulty and operating costs, and improves the system's reliability and stability.

[0034] In one embodiment of this utility model, please refer to Figure 1 The chiller unit cooling device 100 is equipped with a second temperature sensor 5, which is located at the outlet end of the cooling tower 1 and is electrically connected to the mixing pump 41.

[0035] In one embodiment, the chiller unit cooling device 100 achieves real-time monitoring and precise control of the cooling medium temperature by installing a second temperature sensor 5 at the outlet end of the cooling tower 1. The second temperature sensor 5, installed at the outlet end of the cooling tower 1, can measure the temperature of the cooled medium after cooling in real time and transmit the temperature signal to the control system of the mixing pump 41. When the second temperature sensor 5 detects that the cooling medium temperature at the outlet of the cooling tower 1 is lower than a preset value, the mixing pump 41 automatically adjusts the flow rate according to the feedback signal, delivering the low-temperature cooling medium from the outlet of the cooling tower 1 to the inlet of the cooling tower 1 for mixing with the high-temperature cooling medium, thereby optimizing the inlet temperature of the cooling tower 1. For example, if the preset temperature set for the second temperature sensor 5 is 18°C, when the outlet temperature is detected to be lower than this value, the mixing pump 41 automatically starts and adjusts the flow rate to ensure that the inlet medium temperature of the cooling tower 1 remains within a suitable range. Furthermore, the electrical connection between the second temperature sensor 5 and the mixing pump 41 can be achieved through wired or wireless communication. The control system of the mixing pump 41 can employ a PLC controller or an intelligent temperature control module to further improve the system's automation level and operational accuracy.

[0036] By installing a second temperature sensor 5 at the outlet of cooling tower 1 and electrically connecting it to the mixing pump 41, the chiller unit cooling device 100 in this embodiment can achieve precise control of the cooling medium temperature, significantly improving the system's operating efficiency and stability. The real-time monitoring function of the second temperature sensor 5, combined with the automatic adjustment capability of the mixing pump 41, ensures that the cooling medium temperature at the outlet of cooling tower 1 is always at its optimal level, avoiding the problem of low-temperature protection shutdown of chiller unit 2 due to excessively low temperatures. It also reduces the white mist phenomenon generated at the top of cooling tower 1 during operation, improving the visual effect and environmental quality around cooling tower 1. For example, during transitional seasons or when the ambient temperature is low, the second temperature sensor 5 can detect changes in the outlet temperature in a timely manner. Through the automatic adjustment of the mixing pump 41, the inlet medium temperature of cooling tower 1 is kept stable, thereby improving the cooling efficiency of cooling tower 1 and reducing the energy consumption of chiller unit 2. Furthermore, this automatic control method reduces manual intervention, lowers operational difficulty and operating costs, and improves the reliability and stability of the system.

[0037] In one embodiment of this utility model, please refer to Figure 1 The mixing pump 41 is a variable frequency mixing pump 41, which can adjust its operating frequency according to the temperature detected by the first temperature sensor 42.

[0038] In this embodiment, the mixing pump 41 is a variable frequency mixing pump 41, whose operating frequency can be dynamically adjusted according to the inlet medium temperature of the cooling tower 1 detected by the first temperature sensor 42. Specifically, the first temperature sensor 42 is installed at the inlet end of the cooling tower 1 to monitor the temperature of the cooling medium in real time and transmit the temperature signal to the control system of the frequency converter. The frequency converter automatically adjusts the operating frequency of the variable frequency mixing pump 41 according to the set temperature threshold and feedback signal. For example, when the first temperature sensor 42 detects that the inlet medium temperature is higher than the set value (e.g., 25°C), the frequency converter will increase the operating frequency of the mixing pump 41 and increase the flow rate of the low-temperature cooling medium to lower the inlet medium temperature; conversely, when the temperature is lower than the set value (e.g., 23°C), the frequency converter will decrease the operating frequency of the mixing pump 41 and reduce the flow rate to avoid overcooling. Furthermore, the variable frequency mixing pump 41 can be adjusted in multiple levels according to actual operating conditions, such as using a high-frequency operating mode in high-temperature environments and a low-frequency operating mode in low-temperature environments to achieve optimal energy-saving effects.

[0039] By employing a variable frequency mixing pump 41 and adjusting its operating frequency based on the temperature detected by the first temperature sensor 42, the operating efficiency and energy-saving effect of the chiller unit cooling device 100 are significantly improved. Precise control of the mixing pump 41 ensures that the inlet medium temperature of the cooling tower 1 remains stable within the set range, preventing cooling efficiency reduction or equipment failure due to temperature fluctuations. For example, during transitional seasons or when ambient temperatures vary significantly, the variable frequency mixing pump 41 can flexibly adjust its flow rate based on real-time temperature feedback, reducing unnecessary energy consumption. Furthermore, the dynamic adjustment capability of the variable frequency mixing pump 41 extends the equipment's service life and reduces maintenance costs. For instance, compared to a fixed-frequency mixing pump 41, the variable frequency mixing pump 41 reduces motor wear and improves system reliability and stability during low-load operation.

[0040] In one embodiment of this utility model, please refer to Figure 1 The chiller unit cooling device 100 also includes a regulating valve 6, which is used to connect the outlet end of the chiller unit 2 with the inlet end of the transfer pump 3. The regulating valve 6 can introduce the cooling medium flowing through the chiller unit 2 into the transfer pump 3.

[0041] In one embodiment, the chiller unit cooling device 100 optimizes the flow path of the cooling medium by setting a regulating valve 6 to ensure stable operation of the system under different operating conditions. The regulating valve 6 is installed between the outlet end of the chiller unit 2 and the inlet end of the transfer pump 3. Its main function is to introduce the cooling medium (such as cooling water) flowing through the chiller unit 2 into the transfer pump 3, mix it with the low-temperature cooling medium flowing out of the cooling tower 1, and then deliver it to the chiller unit 2 for cooling. During transitional seasons, for example, when the outdoor dry-bulb temperature is below 20°C or the wet-bulb temperature is below 14°C, the cooling capacity of the cooling tower 1 is strong, which may cause the cooling water temperature to drop below 18°C. At this time, the regulating valve 6 can precisely control the flow rate of the cooling medium to directly introduce some cooling water into the transfer pump 3, avoiding the low-temperature protection shutdown of the chiller unit 2 caused by excessively low cooling water temperature. For example, the regulating valve 6 can automatically adjust its opening according to the cooling water temperature signal fed back by the temperature sensor to ensure that the cooling water temperature is maintained above 19°C, thereby ensuring the normal operation of the chiller unit 2. This setup can be achieved through manual adjustment or an automatic control system to adapt to different operating environments and needs.

[0042] By installing a regulating valve 6 in the chiller unit's cooling device 100, the system's operational stability and adaptability in low-temperature environments are significantly improved. During transitional seasons, the regulating valve 6 effectively prevents the chiller unit 2 from shutting down due to excessively low cooling water temperature, ensuring continuous and stable system operation. For example, when the outdoor temperature is low, the regulating valve 6 can automatically adjust its opening to mix the high-temperature and low-temperature cooling media, preventing the cooling water temperature from dropping below 18°C, thus meeting the lower limit requirement of the chiller unit 2 for cooling water temperature. Furthermore, the precise control function of the regulating valve 6 optimizes the flow path of the cooling media, improving the overall system efficiency and reducing energy consumption. For instance, when the system load changes, the regulating valve 6 can automatically adjust the flow rate according to actual needs, ensuring that the temperature and flow rate of the cooling media are always at their optimal levels, further enhancing the system's operational performance and economy.

[0043] In one embodiment of this utility model, please refer to Figure 1 The chiller unit cooling device 100 is equipped with a third temperature sensor 7, which is used to detect the inlet temperature of the chiller unit 2. The third temperature sensor 7 is electrically connected to the regulating valve 6.

[0044] In this embodiment, the chiller unit cooling device 100 achieves real-time monitoring and precise control of the inlet temperature of the chiller unit 2 by setting a third temperature sensor 7. The third temperature sensor 7 is installed at the inlet of the chiller unit 2 and can detect the temperature of the cooling medium about to enter the chiller unit 2 in real time, transmitting the temperature signal to the control system of the regulating valve 6. When the third temperature sensor 7 detects that the inlet temperature is lower than a set lower limit (e.g., 19°C), the regulating valve 6 automatically adjusts its opening based on the feedback signal, increasing the flow rate of the cooling medium from the outlet of the chiller unit 2, thereby increasing the inlet temperature of the chiller unit 2 and preventing the chiller unit 2 from shutting down due to low cooling water temperature. For example, in transitional seasons or low-temperature environments, when the third temperature sensor 7 detects that the inlet temperature is close to 19°C, the regulating valve 6 will automatically increase its opening, increasing the flow rate of the high-temperature cooling medium from the outlet of the chiller unit 2 to raise the inlet temperature. Furthermore, the control system of the regulating valve 6 can use a PLC controller or an intelligent temperature control module, combined with the real-time data from the third temperature sensor 7, to achieve automated and intelligent temperature regulation.

[0045] By incorporating a third temperature sensor 7 and electrically connecting it to the regulating valve 6, the chiller unit cooling device 100 in this embodiment effectively prevents the chiller unit 2 from shutting down due to excessively low cooling water temperature, significantly improving the system's operational stability and reliability. In practical applications, the precise monitoring function of the third temperature sensor 7, combined with the automatic adjustment capability of the regulating valve 6, ensures that the temperature at the inlet of the chiller unit 2 remains within a safe operating range, avoiding shutdown failures caused by low-temperature protection and reducing equipment downtime and maintenance costs.

[0046] In one embodiment of this utility model, please refer to Figure 1 The chiller unit cooling device 100 is equipped with a fourth temperature sensor 8, which is used to detect the outlet temperature of the chiller unit 2. The fourth temperature sensor 8 is electrically connected to the regulating valve 6.

[0047] In one embodiment, the chiller unit cooling device 100 achieves real-time monitoring and precise control of the outlet temperature of the chiller unit 2 by setting a fourth temperature sensor 8. The fourth temperature sensor 8 is installed at the outlet of the chiller unit 2 and can detect the temperature of the cooling medium flowing out of the chiller unit 2, transmitting the temperature signal to the control system of the regulating valve 6. When the fourth temperature sensor 8 detects that the outlet water temperature exceeds a set threshold, the regulating valve 6 automatically adjusts its opening based on the feedback signal to optimize the flow distribution of the cooling medium. For example, if the outlet water temperature is too high, the regulating valve 6 will reduce its opening to decrease the flow of the cooling medium and enhance the cooling effect; conversely, if the outlet water temperature is too low, the regulating valve 6 will increase its opening to increase the flow of the cooling medium and avoid over-cooling. Furthermore, the control system of the regulating valve 6 can use a PLC controller or an intelligent temperature control module, combined with the real-time data from the fourth temperature sensor 8, to achieve automated and intelligent temperature regulation, ensuring the operating efficiency and stability of the chiller unit 2.

[0048] By incorporating a fourth temperature sensor 8 and electrically connecting it to the regulating valve 6, the chiller unit cooling device 100 in this embodiment can monitor the outlet temperature of the chiller unit 2 in real time, precisely control the flow rate of the cooling medium, and significantly improve the system's operating efficiency and stability. The real-time monitoring function of the fourth temperature sensor 8, combined with the automatic adjustment capability of the regulating valve 6, ensures that the outlet water temperature of the chiller unit 2 is always at its optimal level, avoiding equipment failure or increased energy consumption due to excessively high or low temperatures. For example, during transitional seasons or when ambient temperatures fluctuate significantly, the fourth temperature sensor 8 can promptly detect temperature changes, and through the automatic adjustment of the regulating valve 6, maintain the flow rate and temperature of the cooling medium within the set range, thereby improving the cooling efficiency of the chiller unit 2 and reducing energy consumption.

[0049] In one embodiment of this utility model, please refer to Figure 1 The regulating valve 6 is an electric linear regulating valve.

[0050] In this embodiment, the chiller unit cooling device 100 uses an electric linear regulating valve 6 as a key flow control component. The electric linear regulating valve 6 is installed between the outlet end of the chiller unit 2 and the inlet end of the transfer pump 3. Through its linear regulation characteristics, it can precisely control the flow rate of the cooling medium based on the inlet and outlet temperature signals detected by the third temperature sensor 7 and the fourth temperature sensor 8. Specifically, when the third temperature sensor 7 and the fourth temperature sensor 8 detect that the difference between the outlet water temperature and the inlet water temperature exceeds a set threshold, the actuator of the electric linear regulating valve 6 linearly adjusts the valve core opening according to the feedback signal. For example, when the outlet water temperature is too high, the regulating valve 6 linearly reduces the opening, reducing the flow rate of the cooling medium to lower the outlet water temperature; conversely, when the outlet water temperature is too low, the regulating valve 6 linearly increases the opening, increasing the flow rate to avoid over-cooling.

[0051] The use of an electric linear regulating valve 6 as a flow control component significantly improves the operating efficiency and control accuracy of the chiller unit's cooling device 100. The linear regulation characteristic of the electric linear regulating valve 6 can accurately adjust the flow rate of the cooling medium based on real-time temperature feedback signals, ensuring that the outlet water temperature of the chiller unit 2 is always at the optimal level, and avoiding equipment failure or increased energy consumption due to temperature fluctuations.

[0052] This utility model also proposes a refrigeration system, which includes a chiller unit cooling device 100. The specific structure of the chiller unit cooling device 100 is as described in the above embodiments. Since this refrigeration system adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0053] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A cooling device for a water chiller unit, used in a refrigeration system, characterized in that, include: Cooling tower (1), the cooling tower (1) is used to connect to the chiller unit (2) and cool the cooling medium flowing through the chiller unit (2); A transfer pump (3), connected to the outlet of the cooling tower (1), the transfer pump (3) being used to transport the cooling medium in the cooling tower (1) to the chiller unit (2); and Cooling component (4) is connected to the inlet end of the cooling tower (1) and is used to reduce the temperature at the inlet end of the cooling tower (1).

2. The chiller unit cooling device as described in claim 1, characterized in that, The cooling component (4) is equipped with a mixing pump (41), which is connected to the outlet and inlet of the cooling tower (1).

3. The chiller unit cooling device as described in claim 2, characterized in that, The cooling component (4) is equipped with a first temperature sensor (42), which is located at the inlet end of the cooling tower (1) and is electrically connected to the mixing pump (41).

4. The chiller unit cooling device as described in claim 3, characterized in that, The chiller unit is equipped with a second temperature sensor (5), which is located at the outlet end of the cooling tower (1) and is electrically connected to the mixing pump (41).

5. The chiller unit cooling device as described in claim 3, characterized in that, The mixing pump (41) is a variable frequency mixing pump (41), which can adjust its operating frequency according to the temperature detected by the first temperature sensor (42).

6. The chiller unit cooling device according to any one of claims 1 to 5, characterized in that, The chiller unit cooling device also includes a regulating valve (6), which is used to connect the outlet end of the chiller unit (2) with the inlet end of the transfer pump (3). The regulating valve (6) can introduce the cooling medium flowing through the chiller unit (2) into the transfer pump (3).

7. The chiller unit cooling device as described in claim 6, characterized in that, The chiller unit cooling device is equipped with a third temperature sensor (7), which is used to detect the inlet temperature of the chiller unit (2). The third temperature sensor (7) is electrically connected to the regulating valve (6).

8. The chiller unit cooling device as described in claim 7, characterized in that, The chiller unit cooling device is equipped with a fourth temperature sensor (8), which is used to detect the outlet temperature of the chiller unit (2). The fourth temperature sensor (8) is electrically connected to the regulating valve (6).

9. The chiller unit cooling device as described in claim 7, characterized in that, The regulating valve (6) is an electric linear regulating valve (6).

10. A refrigeration system, characterized in that, Includes the chiller unit cooling device as described in any one of claims 1 to 9.

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