Cold station and cold station water replenishing method

Abstract

The invention provides a cold station and a cold station water replenishing method. The cooling station comprises a cooling part comprising a cooling water return pipe; the freezing part comprises a frozen water return pipe; the first water supply pipeline and the second water supply pipeline are located between the water inlet end and the water outlet end of the water supply part and connected in parallel, the first water supply pipeline comprises a first adjusting valve, the second water supply pipeline comprises a water supply pump, and an inlet of the water supply pump is connected to the water inlet end while an outlet is connected to the water outlet end; the water outlet end is connected with the cooling water return pipe and / or the chilled water return pipe in an on-off manner; the detection part comprises a first detection device for detecting the water supply pressure of the water inlet end; and the control device is in signal connection with the detection part, the first regulating valve and the water supply pump and has a first water replenishing mode, and under the first water replenishing mode, the control device controls opening and closing of the first regulating valve and the water supply pump according to the water supply pressure when the water supply part replenishes water to the cooling part or the freezing part. The cold station water supplementing method is based on the cold station. The cooling station is beneficial to reducing the number of water supply parts and reducing the manufacturing and maintenance cost.

Description

Technical Field

[0001] The present disclosure relates to the technical field of industrial refrigeration, and in particular to a cooling station and a cooling station water replenishment method. Background Art

[0002] In industrial refrigeration, conventional cooling stations utilize constant-pressure water replenishment devices to stabilize water pressure within the cooling station. These devices typically utilize a separate design consisting of a pressure tank, water replenishment pump, and electronic control system. These devices utilize pressure sensors, inverters, and controllers within the electronic control system to monitor pressure fluctuations within the cooling station in real time and adjust water flow. However, while these devices offer automatic pressure control, they suffer from a dispersed structure, large footprint, and complex piping connections, resulting in low integration within the cooling station. Furthermore, these electronic control systems exhibit complex control logic, difficult troubleshooting, and high energy consumption. Over long-term operation, these devices are prone to excessive pressure fluctuations and delayed water replenishment, making them incapable of meeting the comprehensive requirements for compact, intelligent, and energy-efficient cooling stations. Furthermore, for integrated cooling stations requiring dual-circuit replenishment for both cooling water and chilled water, conventional cooling stations require two independent water supply systems. This increases costs and compromises water supply efficiency due to the difficulty in coordinating and controlling multiple systems. Summary of the Invention

[0003] The purpose of the present disclosure is to provide a cold station and a cold station water replenishment method, aiming to solve the problem that the cold station in the related art needs to be equipped with a constant pressure water replenishment device to stabilize the water pressure in the cold station, but the constant pressure water replenishment device has a dispersed structure, a large number of electronic control system detection and control equipment, and is difficult to maintain, and is prone to excessive pressure fluctuations and delayed water replenishment during long-term operation.

[0004] A first aspect of the present disclosure provides a cold station, comprising:

[0005] A cooling unit, comprising a cooling water return pipe and a cooling water pump having an inlet connected to the cooling water return pipe;

[0006] A freezing unit, comprising a chilled water return pipe and a chilled water pump with an inlet connected to the chilled water return pipe;

[0007] a water supply unit configured to supply water to the cooling unit and / or the freezing unit, comprising a water inlet, a water outlet, and a first water supply pipeline and a second water supply pipeline connected in parallel between the water inlet and the water outlet, wherein the first water supply pipeline comprises a first regulating valve, and the second water supply pipeline comprises a water supply pump, wherein the inlet of the water supply pump is connected to the water inlet, and the outlet is connected to the water outlet, and the water outlet is connected to the cooling water return pipe and / or the chilled water return pipe in a disconnectable manner;

[0008] a detection unit, comprising a first detection device, wherein the first detection device is configured to detect the water supply pressure of the water inlet end; and

[0009] A control device is connected to the detection unit, the first regulating valve and the water supply pump signal, and has a first water replenishment mode. In the first water replenishment mode, the control device is configured to control the opening and closing of the first regulating valve and the water supply pump according to the water supply pressure when the water supply unit replenishes water to the cooling unit and / or the freezing unit.

[0010] In the cooling station of some embodiments, the control device further has a second water replenishment mode. In the second water replenishment mode, the control device is configured to control the water supply pump to be turned on and the first regulating valve to be closed.

[0011] In some embodiments of the cold station, the second water supply pipeline includes a check valve, and the check valve is located between the outlet of the water supply pump and the water outlet.

[0012] In the cooling station of some embodiments, the control device is configured to control the frequency of the water supply pump according to the detection result of the detection unit when the water supply pump is turned on.

[0013] In some embodiments of the cold station,

[0014] The cooling unit includes a cooling tower, the cooling water return pipe is connected between the cooling tower and the cooling water pump, the detection unit includes a second detection device, the second detection device is configured to detect a water level value of a water collection unit in the cooling tower, and the control device is configured to control the water supply unit to replenish water to the cooling unit according to the water level value of the water collection unit; and / or

[0015] The detection unit includes a third detection device, the third detection device is configured to detect the cooling water pressure value at the inlet of the cooling water pump, and the control device is configured to control the water supply unit to replenish water to the cooling unit according to the cooling water pressure value; and / or

[0016] The detection unit includes a fourth detection device, which is configured to detect a chilled water pressure value at an inlet of the chilled water pump. The control device is configured to control whether the water supply unit replenishes water to the freezing unit according to the chilled water pressure value.

[0017] In some embodiments of the cold station,

[0018] The cooling station includes a second regulating valve, which is connected between the water outlet and the cooling water pump. The control device is connected to the second regulating valve signal and is configured to control whether the water supply part replenishes water to the cooling part by controlling the opening and closing of the second regulating valve; and / or

[0019] The cold station includes a third regulating valve, which is connected between the water outlet and the chilled water pump. The control device is connected to the third regulating valve signal and is configured to control whether the water supply part replenishes water to the freezing part by controlling the opening and closing of the third regulating valve.

[0020] A second aspect of the present disclosure provides a cold station water replenishment method based on the cold station described in the first aspect. When the water supply unit replenishes water to the cooling unit and / or the freezing unit, in the first water replenishment mode of the control device, the cold station water replenishment method includes:

[0021] When the water supply pressure reaches a preset condition, the control device controls the first regulating valve to open and controls the water supply pump to close; and

[0022] If the water supply pressure does not reach a preset condition, the control device controls the first regulating valve to close and controls the water supply pump to open.

[0023] In some embodiments of the cold station water replenishment method, the control device further has a second water replenishment mode. In the second water replenishment mode, the cold station water replenishment method includes the control device controlling the water supply pump to turn on and the first regulating valve to turn off.

[0024] In some embodiments of the cold station water replenishment method, the method further includes the step of the control device controlling the frequency of the water supply pump according to the detection result of the detection unit when the water supply pump is turned on.

[0025] In some embodiments of the cold station water replenishment method,

[0026] When the water supply unit replenishes water to the cooling unit, the preset condition includes that the water supply pressure is greater than a preset cooling water pressure upper limit value of the cooling water at the inlet of the cooling water pump; and / or

[0027] When the water supply unit replenishes water to the freezing unit, the preset condition includes that the water supply pressure is greater than a preset upper limit of the chilled water pressure of the chilled water at the inlet of the chilled water pump.

[0028] In some embodiments of the cold station water replenishment method,

[0029] The cooling unit includes a cooling tower, the cooling water return pipe is connected between the cooling tower and the cooling water pump, and the detection unit includes a second detection device, which is configured to detect a water level value of a water collection part in the cooling tower; and / or

[0030] The detection unit includes a third detection device, and the third detection device is configured to detect the cooling water pressure value at the inlet of the cooling water pump; and / or

[0031] The detection unit includes a fourth detection device, and the fourth detection device is configured to detect the chilled water pressure value at the inlet of the chilled water pump;

[0032] The cold station water replenishment method comprises:

[0033] The control device controls the water supply part to supply water to the cooling part according to the liquid level value of the water collecting part; and / or

[0034] The control device controls the water supply unit to supply water to the cooling unit according to the cooling water pressure value; and / or

[0035] The control device controls whether the water supply unit replenishes water to the freezing unit according to the chilled water pressure value.

[0036] In some embodiments of the cold station water replenishment method, the cold station water replenishment method includes:

[0037] The liquid level value of the water collecting part is less than or equal to the preset liquid level lower limit value, and the control device controls the water supply part to replenish water to the cooling part; and / or

[0038] When the liquid level of the water collecting part is greater than the preset lower limit of the liquid level and the cooling water pressure reaches the preset upper limit of the cooling water pressure, the control device controls the water supply part to stop supplying water to the cooling part; and / or

[0039] The chilled water pressure value is less than or equal to a preset chilled water pressure lower limit value, and the control device controls the water supply part to replenish water to the freezing part; and / or

[0040] When the chilled water pressure value reaches a preset chilled water pressure upper limit, the control device controls the water supply unit to stop replenishing water to the freezing unit.

[0041] In some embodiments of the cold station water replenishment method,

[0042] The cooling station includes a second regulating valve, the second regulating valve is connected between the water outlet and the cooling water pump, and the control device is connected to the second regulating valve signal; and / or

[0043] The cooling station includes a third regulating valve, the third regulating valve is connected between the water outlet and the chilled water pump, and the control device is connected to the third regulating valve by signal;

[0044] The cold station water replenishment method further comprises:

[0045] The control device controls whether the water supply unit supplies water to the cooling unit by controlling the opening and closing of the second regulating valve; and / or

[0046] The control device controls whether the water supply unit replenishes water to the freezing unit by controlling the opening and closing of the third regulating valve.

[0047] In some embodiments of the cold station water replenishment method, the cold station water replenishment method includes: when both the cooling part and the freezing part need to be replenished with water, the control device controls the water supply part to first replenish water to the cooling part and then replenish water to the freezing part.

[0048] In the cold station water replenishment method of some embodiments, the control device further has a second water replenishment mode. In the second water replenishment mode, the control device controls the water supply pump to be turned on and the first regulating valve to be closed.

[0049] When both the cooling unit and the freezing unit need to be replenished with water, the cold station water replenishment method includes:

[0050] By using the second water replenishment mode, water is first replenished to the cooling part, and then to the freezing part; or

[0051] The cooling part is first replenished with water through the second water replenishment mode, and then the freezing part is replenished with water through the first water replenishment mode.

[0052] Based on the cold station provided by the present disclosure, it includes a cooling part, a freezing part, a water supply part, a detection part and a control device. The water supply part is configured to replenish water to the cooling part and / or replenish water to the freezing part. The water supply part is provided with a first water supply pipeline and a second water supply pipeline. The first water supply pipeline includes a first regulating valve, and the second water supply pipeline includes a water supply pump. The water outlet end of the water supply part is connected to at least one of the cooling water return pipe and the chilled water return pipe in a switchable manner. The detection part includes a first detection device, and the first detection device is configured to detect the water supply pressure at the water inlet end. The control device is connected to the detection part, the first regulating valve and the water supply pump signal, and has a first water replenishment mode. In the first water replenishment mode, the control device is configured to control the opening and closing of the first regulating valve and the water supply pump according to the water supply pressure to control the opening and closing of the first water supply pipeline and the second water supply pipeline. The cold station does not need to be equipped with a constant pressure water replenishment device, which is conducive to directly selecting the first water supply pipeline or the second water supply pipeline to supply water to the water outlet according to the water supply pressure at the water inlet through the control device, which is conducive to reducing the setting of detection equipment and facilitating the maintenance of the normal operation of the water supply unit. In addition, the cooperation between the first detection device and the control device is conducive to ensuring that the water supply pressure of the water supply unit meets the water supply demand, avoiding water supply interruption or insufficient water volume due to insufficient water supply pressure, and reducing energy consumption, reducing resource waste and unnecessary pipe loss caused by excessive water supply pressure. When the water outlet of the water supply unit is connected to the cooling water return pipe and the chilled water return pipe in a disconnectable manner, the cold station is conducive to providing replenishment water to the freezing unit and the cooling unit through one water supply unit, which is conducive to reducing the number of water supply units, reducing manufacturing and maintenance costs, and improving the space utilization and operational stability of the cold station.

[0053] The cold station water replenishment method disclosed herein is based on the cold station disclosed herein, and thus has the advantages of the cold station disclosed herein. In the first water replenishment mode of the control device, the cold station water replenishment method timely switches the first water supply pipeline and the second water supply pipeline by controlling the opening and closing of the first regulating valve and the water supply pump, which is conducive to achieving efficient and stable water supply: when the water supply pressure reaches the preset condition, the control device shuts off the water supply pump and opens the first regulating valve, directly utilizing the water supply pressure at the water inlet to supply water and reduce energy consumption; when the water supply pressure does not reach the preset condition, indicating insufficient water supply pressure, the first regulating valve is closed and the water supply pump is started to increase pressure to ensure that the water supply pressure meets the water supply demand. This cold station water replenishment method is beneficial for both ensuring water supply reliability and optimizing energy utilization efficiency.

[0054] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of this application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

[0056] Figure 1 This is a schematic structural diagram of a cold station according to an embodiment of the present disclosure;

[0057] Figure 2 for Figure 1 The schematic diagram of the structure of the water supply part of the cooling station shown;

[0058] Figure 3 This is a flow chart of a cooling station water replenishment method according to an embodiment of the present disclosure, which illustrates a cooling station water replenishment method in which a water supply unit provides replenishment water to a cooling unit;

[0059] Figure 4 This is a flow chart of a cold station water replenishment method according to an embodiment of the present disclosure, which illustrates a cold station water replenishment method in which a water supply unit provides replenishment water to a freezing unit;

[0060] Figure 5 This is a flow chart of a cold station water replenishment method according to an embodiment of the present disclosure, which illustrates a cold station water replenishment method in which a water supply unit provides replenishment water to a freezing unit and a cooling unit.

[0061] Figures 1 to 5 In the figure, each reference numeral represents:

[0062] 110. First water supply pipeline, 10a. First regulating valve, 120. Second water supply pipeline, 7. Water supply pump, 6. Check valve, 1b. First detection device, 2. Cooling water pump, 200. Cooling water return pipe, 2a. Second regulating valve, 2b. Third detection device, 8. Cooling tower, 8a. Water collection part, 8b. Second detection device, 3. Chilled water pump, 300. Chilled water return pipe, 3a. Third regulating valve, 3b. Fourth detection device, 9. Control device. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

[0064] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed herein, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0065] In the description of the present disclosure, it should be understood that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0066] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, upright, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0067] like Figure 1 and Figure 2 As shown, an embodiment of the present disclosure provides a cooling station. The cooling station includes a cooling unit, a freezing unit, a water supply unit, a detection unit, and a control device 9. The cooling unit includes a cooling water return pipe 200 and a cooling water pump 2 whose inlet is connected to the cooling water return pipe 200. The freezing unit includes a chilled water return pipe 300 and a chilled water pump 3 whose inlet is connected to the chilled water return pipe 300. The water supply unit is configured to replenish water to the cooling unit and / or the freezing unit, and includes a water inlet, a water outlet, and a first water supply pipeline 110 and a second water supply pipeline 120 connected in parallel between the water inlet and the water outlet. The first water supply pipeline 110 includes a first regulating valve 10a. The second water supply pipeline 120 includes a water supply pump 7. The inlet of the water supply pump 7 is connected to the water inlet, and the outlet is connected to the water outlet. The water outlet is connected to the cooling water return pipe 200 and / or the chilled water return pipe 300 in a reversible manner. The detection unit includes a first detection device 1b, which is configured to detect the water supply pressure at the water inlet. The control device 9 is signal-connected to the detection unit, the first regulating valve 10a, and the water supply pump 7, and has a first water replenishment mode. In this first water replenishment mode, the control device 9 is configured to control the opening and closing of the first regulating valve 10a and the water supply pump 7 based on the water supply pressure when the water supply unit replenishes water to the cooling unit and / or freezing unit.

[0068] The cold station provided by the present disclosure includes a cooling unit, a freezing unit, a water supply unit, a detection unit and a control device 9. The water supply unit is configured to replenish water to the cooling unit and / or to the freezing unit. The water supply unit is provided with a first water supply pipeline 110 and a second water supply pipeline 120. The first water supply pipeline 110 includes a first regulating valve 10a, and the second water supply pipeline 120 includes a water supply pump 7. The water outlet end of the water supply unit is connected to at least one of the cooling water return pipe 200 and the chilled water return pipe 300 in a switchable manner. The detection unit includes a first detection device 1b, which is configured to detect the water supply pressure at the water inlet end. The control device 9 is signal-connected to the detection unit, the first regulating valve 10a, and the water supply pump 7, and has a first water replenishment mode. In the first water replenishment mode, the control device is configured to control the opening and closing of the first regulating valve 10a and the water supply pump 7 according to the water supply pressure to control the opening and closing of the first water supply pipeline 110 and the second water supply pipeline 120. The cold station does not need to be equipped with a constant pressure water replenishment device, which is conducive to directly selecting the first water supply pipeline 110 or the second water supply pipeline 120 to supply water to the water outlet according to the water supply pressure at the water inlet through the control device 9, which is conducive to reducing the setting of detection equipment and facilitating the maintenance of the normal operation of the water supply unit. In addition, through the cooperation of the first detection device 1b and the control device 9, it is conducive to ensuring that the water supply pressure of the water supply unit meets the water supply demand, avoiding water supply interruption or water shortage caused by insufficient water supply pressure, and reducing energy consumption, reducing resource waste and unnecessary pipe loss caused by excessive water supply pressure. When the water outlet of the water supply unit is connected to the cooling water return pipe 200 and the chilled water return pipe 300 in a disconnectable manner, the cold station is conducive to providing replenishment water to the freezing unit and the cooling unit through one water supply unit, which is conducive to reducing the number of water supply units, reducing manufacturing and maintenance costs, and improving the space utilization and operational stability of the cold station.

[0069] The first detection device 1b is, for example, a pressure sensor installed at the water inlet of the water supply unit. The first regulating valve 10a is, for example, a solenoid valve or an electric valve. The water inlet is connected to, for example, a municipal water supply network or a water supply line of a soft water system. Filtering equipment and disinfection equipment, for example, can be installed between the water inlet and the municipal water supply network to purify the municipal water supply.

[0070] The control device 9 can be implemented as a general-purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any appropriate combination thereof for performing the functions described in the present disclosure.

[0071] In some embodiments, the control device 9 further has a second water replenishment mode. In the second water replenishment mode, the control device 9 is configured to control the water supply pump 7 to be turned on and the first regulating valve 10a to be closed.

[0072] In the second water replenishment mode, the control device 9 does not need to select whether to supply water to the water outlet through the first water supply pipe 110 or the second water supply pipe 120 according to the water supply pressure, but directly supplies water to the water outlet through the second water supply pipe 120. This is beneficial for ensuring that the water supply part can continuously, quickly and effectively replenish water to the freezing part and / or cooling part when the water supply part needs a large amount of water supply (for example, both the freezing part and the cooling part need to be replenished with water) or rapid water replenishment.

[0073] like Figure 1 and Figure 2 As shown, in some embodiments, the second water supply pipeline 120 includes a check valve 6. The check valve 6 is located between the outlet and the water outlet of the water supply pump 7.

[0074] Providing a check valve 6 downstream of the water supply pump 7 helps to prevent water backflow on the second water supply pipeline 120 during the opening and closing process of the water supply pump 7 and damage the water supply pump 7, thereby reducing equipment losses and ensuring stable operation of the water supply unit.

[0075] like Figure 1 and Figure 2 As shown, in some embodiments, the control device 9 is configured to control the frequency of the water supply pump 7 according to the detection result of the detection unit when the water supply pump 7 is turned on. For example, the control device 9 may include a frequency converter, which compares the detection result of the detection unit with a preset value (such as a preset liquid level value, a preset pressure value, etc.) and dynamically adjusts the output frequency according to the deviation, thereby regulating the frequency of the water supply pump 7.

[0076] This setting is conducive to dynamically adjusting the frequency of the water supply pump 7 according to the deviation between the detection result of the detection unit and the preset value, thereby facilitating the frequency of the water supply pump 7 to match the actual water demand in real time and reducing energy consumption.

[0077] like Figure 1 As shown, in some embodiments, the cooling unit includes a cooling tower 8. A cooling water return pipe 200 is connected between the cooling tower 8 and the cooling water pump 2. The detection unit includes a second detection device 8b, which is configured to detect the water level of the water collecting portion 8a in the cooling tower 8. The control device 9 is configured to control whether the water supply unit replenishes water to the cooling unit based on the water collecting portion level; and / or the detection unit includes a third detection device 2b, which is configured to detect the cooling water pressure at the inlet of the cooling water pump 2. The control device 9 is configured to control whether the water supply unit replenishes water to the cooling unit based on the cooling water pressure; and / or the detection unit includes a fourth detection device 3b, which is configured to detect the chilled water pressure at the inlet of the chilled water pump 3. The control device 9 is configured to control whether the water supply unit replenishes water to the chilled water unit based on the chilled water pressure.

[0078] The second detection device 8b is, for example, a liquid level meter. Figure 1 For example, the second detection device 8b is a float level gauge; the third detection device 2b is, for example, a pressure sensor arranged on the cooling water return pipe 200; the fourth detection device 3b is, for example, a pressure sensor arranged on the chilled water return pipe 300.

[0079] The control device 9 controls whether the water supply unit replenishes water to the cooling unit based on the water level detected by the second detection device 8b. This helps ensure a stable water level in the water collection unit 8a of the cooling tower 8, prevents excessively low or high water levels from causing low or high pressure in the cooling water return line 200, and thus affecting the stable operation of the cooling water pump 2. This helps maintain water pressure in the cooling unit, and helps prevent unstable operation and damage to the water supply pipelines and related equipment due to pressure fluctuations. The control device 9 controls whether the water supply unit replenishes water to the cooling unit based on the cooling water pressure detected by the third detection device 2b and / or controls whether the water supply unit replenishes water to the freezing unit based on the chilled water pressure detected by the fourth detection device 3b. This helps prevent excessively low or high pressure in the cooling water return line 200 and / or the chilled water return line 300 from affecting the stable operation of the cooling water pump 2, helps ensure stable water pressure in the cooling unit and / or the freezing unit, and helps prevent unstable operation and damage to the water supply pipelines and related equipment due to pressure fluctuations. In addition, the control device 9 controls whether the water supply part replenishes water to the cooling part through the cooling water pressure value detected by the third detection device 2b, and controls whether the water supply part replenishes water to the freezing part through the freezing water pressure value detected by the fourth detection device 3b, which is conducive to independent monitoring of the pressure status of the cooling part and the freezing part, so that the dynamic replenishment and consumption of water from the water supply part to the cooling part and / or freezing part are more accurately matched, thereby maintaining the independent and stable operation of the cooling part and the freezing part.

[0080] like Figure 1As shown, in some embodiments, the cooling station includes a second regulating valve 2a. The second regulating valve 2a is connected between the water outlet and the chilled water pump 2. The control device 9 is signal-connected to the second regulating valve 2a and is configured to control whether the water supply unit replenishes water to the cooling unit by controlling the opening and closing of the second regulating valve 2a; and / or the cooling station includes a third regulating valve 3a. The third regulating valve 3a is connected between the water outlet and the chilled water pump 3. The control device 9 is signal-connected to the third regulating valve 3a and is configured to control whether the water supply unit replenishes water to the chilled water unit by controlling the opening and closing of the third regulating valve 3a.

[0081] The second regulating valve 2 a and the third regulating valve 3 a are, for example, solenoid valves or electric valves.

[0082] Through the second regulating valve 2a and / or the third regulating valve 3a, the control device 9 is conducive to effectively and quickly controlling whether the water supply part replenishes water to the freezing part and / or the cooling part according to the water replenishment conditions of the freezing part and the cooling part, and is conducive to timely adjusting the water replenishment direction according to the water replenishment conditions of the freezing part and / or the cooling part and carrying out targeted water replenishment operations, thereby improving the water replenishment efficiency.

[0083] On the other hand, an embodiment of the present disclosure provides a cold station water replenishment method based on a cold station. When the water supply part replenishes water to the cooling part and / or the freezing part, in the first water replenishment mode of the control device 9, the cold station water replenishment method includes: when the water supply pressure reaches a preset condition, the control device 9 controls the first regulating valve 10a to open and controls the water supply pump 7 to close; and when the water supply pressure does not reach the preset condition, the control device 9 controls the first regulating valve 10a to close and controls the water supply pump 7 to open.

[0084] The cold station water replenishment method of the embodiment of the present disclosure is based on the cold station of the present disclosure, and thus has the advantages of the cold station of the present disclosure. In the first water replenishment mode of the control device 9, the cold station water replenishment method timely switches the first water supply pipeline 110 and the second water supply pipeline 120 by controlling the opening and closing of the first regulating valve 10a and the water supply pump 7, which is conducive to achieving efficient and stable water supply: when the water supply pressure reaches the preset condition, the control device 9 turns off the water supply pump 7 and opens the first regulating valve 10a, directly using the water supply pressure at the water inlet end to supply water to reduce energy consumption; when the water supply pressure does not reach the preset condition, indicating that the water supply pressure is insufficient, the first regulating valve 10a is closed and the water supply pump 7 is started to increase the pressure to ensure that the water supply pressure meets the water supply demand. This cold station water replenishment method is beneficial for both ensuring water supply reliability and optimizing energy utilization efficiency.

[0085] like Figure 5 As shown, in some implementations, the control device 9 further has a second water replenishment mode. In the second water replenishment mode, the cold station water replenishment method includes the control device 9 controlling the water supply pump 7 to open and the first regulating valve 10a to close.

[0086] This cold station water replenishment method is beneficial for the control device 9 in the second water replenishment mode. It does not need to select whether to supply water to the water outlet through the first water supply pipe 110 or the second water supply pipe 120 according to the water supply pressure, but directly supplies water to the water outlet through the second water supply pipe 120. This is beneficial for ensuring that the water supply part can continuously, quickly and effectively replenish water to the freezing part and the cooling part when the water supply part needs a large amount of water supply (for example, both the freezing part and the cooling part need water replenishment) or rapid water replenishment.

[0087] like Figures 3 to 5 As shown, in some embodiments, the cold station water replenishment method further includes, when the water supply pump 7 is turned on, the control device 9 controls the frequency of the water supply pump 7 according to the detection result of the detection unit.

[0088] The control device 9 controls the frequency of the water supply pump 7 according to the detection result of the detection unit, which is conducive to dynamically adjusting the frequency of the water supply pump 7 according to the deviation between the detection result of the detection unit and the preset value (such as the preset liquid level value, the preset pressure value, etc.), thereby facilitating the real-time matching of the frequency of the water supply pump 7 with the actual water demand, and helping to reduce energy consumption.

[0089] like Figures 3 to 5 As shown, in some embodiments, when the water supply part replenishes water to the cooling part, the preset conditions include the water supply pressure being greater than the preset cooling water pressure upper limit value of the cooling water at the inlet of the cooling water pump 2; and / or when the water supply part replenishes water to the freezing part, the preset conditions include the water supply pressure being greater than the preset freezing water pressure upper limit value of the freezing water at the inlet of the freezing water pump 3.

[0090] This cold station water replenishment method is beneficial for the control device 9 to control the water supply part to supply water to the water outlet through the first water supply pipeline 110 or the second water supply pipeline 120 according to the size of the water supply pressure and the preset cooling water pressure upper limit value and / or the preset chilled water pressure upper limit value, which is beneficial for the control device 9 to control the water supply part to select a suitable water supply path, which is beneficial for ensuring water supply reliability and optimizing energy utilization efficiency.

[0091] like Figure 3 and Figure 4 As shown, in some embodiments, the cold station water replenishment method includes: the control device 9 controls the water supply part to replenish water to the cooling part according to the liquid level value of the water collection part; and / or the control device 9 controls the water supply part to replenish water to the cooling part according to the cooling water pressure value; and / or the control device 9 controls the water supply part to replenish water to the freezing part according to the freezing water pressure value.

[0092] The control device 9 controls whether the water supply unit replenishes water to the cooling unit based on the water level value of the water collection unit, thereby ensuring a stable water level in the water collection unit 8a of the cooling tower 8, preventing the water level from being too low or too high, which would cause the pressure in the cooling water return pipe 200 to be too low or too high, thereby affecting the stable operation of the cooling water pump 2, stabilizing the water pressure in the cooling unit and / or the freezing unit, and preventing unstable operation and damage to the water supply pipes and related equipment due to pressure fluctuations. The control device 9 controls whether the water supply unit replenishes water to the cooling unit based on the cooling water pressure value and / or controls whether the water supply unit replenishes water to the freezing unit based on the chilled water pressure value, thereby preventing the pressure in the cooling water return pipe 200 and / or the chilled water return pipe 300 from being too low or too high, thereby affecting the stable operation of the cooling water pump 2, ensuring a stable water pressure in the cooling unit and / or the freezing unit, and preventing unstable operation and damage to the water supply pipes and related equipment due to pressure fluctuations. In addition, the control device 9 controls whether the water supply part replenishes water to the cooling part through the cooling water pressure value and controls whether the water supply part replenishes water to the freezing part through the freezing water pressure value, which is conducive to independent monitoring of the pressure status of the cooling part and the freezing part, so that the dynamic replenishment and consumption of water replenished by the water supply part to the cooling part and / or freezing part are more accurately matched, thereby maintaining the independent and stable operation of the cooling part and the freezing part.

[0093] like Figure 3 and Figure 4 As shown, in some embodiments, the cold station water replenishment method includes: the liquid level value of the water collecting part is less than or equal to the preset liquid level lower limit value, and the control device 9 controls the water supply part to replenish water to the cooling part; and / or the liquid level value of the water collecting part is greater than the preset liquid level lower limit value, and the cooling water pressure value reaches the preset cooling water pressure upper limit value, the control device 9 controls the water supply part to stop replenishing water to the cooling part; and / or the chilled water pressure value is less than or equal to the preset chilled water pressure lower limit value, the control device 9 controls the water supply part to replenish water to the freezing part; and / or the chilled water pressure value reaches the preset chilled water pressure upper limit value, the control device 9 controls the water supply part to stop replenishing water to the freezing part.

[0094] When the water level in the water collection section is less than or equal to the preset lower limit, it indicates that the water level in the water collection section 8a of the cooling tower 8 is low, and the water supply section needs to replenish water to the cooling section. This cold station replenishment method facilitates the control device 9 to timely control the water supply section to replenish water to the cooling section, avoiding the water level being too low, which may cause the inlet pressure of the cooling water pump 2 to be too low, or even to be exhausted. This is conducive to stabilizing the water pressure in the cooling section and avoiding unstable operation due to pressure fluctuations. When the water level in the water collection section is greater than the preset lower limit, and the cooling water pressure reaches the preset upper limit, it indicates that the cooling section is in a state where water replenishment is not required. At this time, the control device 9 controls the water supply section to stop replenishing water to the cooling section, which is conducive to avoiding excessive water replenishment and waste of water resources, and preventing excessive pressure in the cooling water return pipeline 200 from affecting the stable operation of the cooling water pump 2. This is conducive to stabilizing the water pressure in the cooling section and avoiding unstable operation due to pressure fluctuations and damage to the water supply pipeline and related equipment. A chilled water pressure value less than or equal to a preset chilled water pressure lower limit indicates that the chiller is short of chilled water and requires the water supply unit to replenish water to the chiller. This cold station water replenishment method facilitates the control device 9 to timely control the water supply unit to replenish water to the chiller, prevents excessively low pressure in the chilled water return pipe 300 from affecting the stable operation of the chilled water pump 3, ensures stable water pressure in the chiller, avoids unstable operation due to pressure fluctuations, and prevents a lack of chilled water in the chiller from affecting the refrigeration cycle of the chiller and insufficient chilled water output. A chilled water pressure value reaching a preset chilled water pressure upper limit indicates that the chiller is in a state of requiring water replenishment. At this time, the control device 9 controls the water supply unit to stop replenishing water to the chiller, prevents excessively high water pressure in the chilled water return pipe 300 from affecting the stable operation of the chilled water pump 3, ensures stable water pressure in the chiller, and avoids unstable operation due to pressure fluctuations and damage to the water supply pipe and related equipment.

[0095] like Figure 3 As shown, in some embodiments, the cold station water replenishment method also includes: the control device 9 controls whether the water supply part replenishes water to the cooling part by controlling the opening and closing of the second regulating valve 2a; and / or the control device 9 controls whether the water supply part replenishes water to the freezing part by controlling the opening and closing of the third regulating valve 3a.

[0096] This cold station water replenishment method is beneficial for quickly and effectively controlling whether the water supply part replenishes water to the freezing part and / or the cooling part by controlling the second regulating valve 2a and / or the third regulating valve 3a, and is beneficial for timely adjusting the water supply direction according to the water replenishment status of the freezing part and / or the cooling part to carry out targeted water replenishment operations, thereby improving water replenishment efficiency.

[0097] like Figure 5 As shown, in some embodiments, the cold station water replenishment method includes: when both the cooling part and the freezing part need to be replenished with water, the control device 9 controls the water supply part to replenish water to the cooling part first, and then replenish water to the freezing part.

[0098] The water replenishment method of the cold station is beneficial for prioritizing the guarantee of sufficient cooling water to avoid overheating of the refrigeration unit used for preparing chilled water and causing damage to the refrigeration unit, and then ensuring the refrigeration efficiency of the cold station.

[0099] like Figure 5 As shown, in some embodiments, when both the cooling part and the freezing part need to be replenished with water, the cold station water replenishment method includes: replenishing water to the cooling part first through the second water replenishment mode, and then replenishing water to the freezing part; or replenishing water to the cooling part first through the second water replenishment mode, and then replenishing water to the freezing part through the first water replenishment mode.

[0100] When both the cooling unit and the freezing unit are replenished with water through the second water replenishment mode, the control device 9 controls the first regulating valve 10a to close and the water supply pump 7 to open in the second water replenishment mode, so that the replenishment water is replenished through the second water supply pipeline 120. This is conducive to providing sufficient water supply pressure through the water supply pump 7, ensuring that the water replenishment process of the cooling unit and the freezing unit can be carried out normally, quickly and continuously. The cold station water replenishment method of replenishing water to the cooling unit through the second water replenishment mode and then replenishing water to the freezing unit through the first water replenishment mode is conducive to quickly replenishing water to the cooling unit, and then selecting whether to replenish water to the freezing unit through the first water supply pipeline 110 or the second water supply pipeline 120 according to the water supply pressure, which is conducive to energy conservation.

[0101] The following combination Figures 1 to 5 The cold station and the cold station water replenishment method according to the embodiment of the present disclosure are described in detail.

[0102] like Figure 1 and Figure 2 As shown, the cold station includes a water supply unit, a cooling unit, a freezing unit, a detection unit, a second regulating valve 2a, a third regulating valve 3a and a control device 9.

[0103] The cooling unit includes a cooling water return pipe 200, a cooling water pump 2 connected to the cooling water return pipe 200, and a cooling tower 8. The cooling tower 8 includes a water collection section 8a at its base. The cooling water return pipe 200 is connected between the cooling water pump 2 and the cooling tower 8, transporting cooling water from the water collection section 8a to the cooling water pump 2. The cooling water pump 2 then delivers the cooling water to a refrigeration unit that produces chilled water for heat dissipation in the condenser of the refrigeration unit.

[0104] The freezing unit includes a chilled water return pipe 300 and a chilled water pump 3 whose inlet is connected to the chilled water return pipe 300. The chilled water pump 3 is used to transport chilled water to the evaporator of the refrigeration device to exchange heat with the refrigerant in the evaporator to cool it down.

[0105] The water supply unit is configured to supply water to the cooling unit and to supply water to the freezing unit. The water supply unit includes a water inlet, a water outlet, and a first water supply pipeline 110 and a second water supply pipeline 120 located in parallel between the water inlet and the water outlet. The water inlet is connected to the municipal water supply network to use the municipal water supply network as a water supply source. The first water supply pipeline 110 includes a first regulating valve 10a. The second water supply pipeline 120 includes a water supply pump 7 and a check valve 6. The inlet of the water supply pump 7 is connected to the water inlet, and the outlet is connected to the water outlet. The check valve 6 is located between the outlet and the water outlet of the water supply pump 7.

[0106] The water outlet of the water supply unit is connected to the cooling water return pipe 200 and the chilled water return pipe 300 via a second regulating valve 2a and a third regulating valve 3a, respectively. The second regulating valve 2a is connected between the water outlet and the cooling water pump 2. The third regulating valve 3a is connected between the water outlet and the chilled water pump 3.

[0107] The detection unit includes a first detection device 1b, a second detection device 8b, a third detection device 2b, and a fourth detection device 3b. The first detection device 1b is configured to detect the water supply pressure at the water inlet end and is a first pressure sensor provided at the water inlet end of the water supply unit. The second detection device 8b is configured to detect the water level value of the water collection section 8a within the cooling tower 8 and is a float level gauge provided within the cooling tower 8. The third detection device 2b is configured to detect the cooling water pressure value at the inlet of the cooling water pump 2 and is a second pressure sensor provided on the cooling water return pipe 200. The fourth detection device 3b is configured to detect the chilled water pressure value at the inlet of the chilled water pump 3 and is a third pressure sensor provided on the chilled water return pipe 300.

[0108] The control device 9 is signal-connected to the detection unit, the first regulating valve 10 a , the second regulating valve 2 a , the third regulating valve 3 a , and the water supply pump 7 .

[0109] The control device 9 controls whether the water supply unit replenishes water to the cooling unit based on the water collection unit liquid level and cooling water pressure, and controls whether the water supply unit replenishes water to the freezing unit based on the chilled water pressure. The control device 9 controls whether the water supply unit replenishes water to the cooling unit by controlling the opening and closing of the second regulating valve 2a, and controls whether the water supply unit replenishes water to the freezing unit by controlling the opening and closing of the third regulating valve 3a.

[0110] The control device 9 has a first water replenishment mode and a second water replenishment mode. In the first water replenishment mode, the control device 9 is configured to control the opening and closing of the first regulating valve 10a and the water supply pump 7 according to the water supply pressure when the water supply unit replenishes water to the cooling unit or the freezing unit, thereby controlling the opening and closing of the first water supply pipeline 110 and the second water supply pipeline 120. In the second water replenishment mode, the control device 9 is configured to control the water supply pump 7 to open and the first regulating valve 10a to close.

[0111] The cold station is conducive to providing supplementary water to the freezing part and the cooling part through one water supply part, which is conducive to reducing the number of water supply parts, reducing manufacturing and maintenance costs, and improving the space utilization and operation stability of the cold station.

[0112] The cold station does not need to be equipped with a constant pressure water replenishment device, which is conducive to directly selecting the first water supply pipeline 110 or the second water supply pipeline 120 to supply water to the water outlet according to the water supply pressure at the water inlet through the control device 9, which is conducive to reducing the setting of detection equipment and facilitating the maintenance of the normal operation of the water supply unit.

[0113] The cooperation between the first detection device 1b and the control device 9 is conducive to ensuring that the water supply pressure of the water supply unit meets the water supply demand, avoiding water supply interruption or water shortage caused by insufficient water supply pressure, and reducing energy consumption, reducing resource waste and unnecessary pipeline damage caused by excessive water supply pressure. Through the second regulating valve 2a and the third regulating valve 3a, the control device 9 is conducive to effectively and quickly controlling whether the water supply unit replenishes water to the freezing unit or the cooling unit according to the water replenishment status of the freezing unit and the cooling unit, and is conducive to timely adjusting the water replenishment direction according to the water replenishment status of the freezing unit and the cooling unit, so as to carry out targeted water replenishment operations and improve water replenishment efficiency.

[0114] The control device 9 has a first water replenishment mode and a second water replenishment mode. In the first water replenishment mode, the control device 9 controls the water supply path of the water supply part to switch between the first water supply pipeline 110 and the second water supply pipeline 120. In the second water replenishment mode, the control device 9 controls the water supply part to supply water directly to the water outlet end through the second water supply pipeline 120. This setting is conducive to selecting a suitable water replenishment mode for water replenishment according to the water replenishment status of the cooling part and the freezing part connected to the water outlet end, which is conducive to improving the effectiveness and flexibility of the water replenishment operation.

[0115] like Figure 3As shown, in the first water replenishment mode, the control device 9 determines that the cooling unit needs water replenishment when the water level value of the water collecting unit detected by the second detection device 8b is less than or equal to the preset liquid level lower limit. The control device 9 controls the second regulating valve 2a to open, so that the water supply unit can replenish water to the cooling unit. At this time, if the first detection device 1b detects that the water supply pressure is greater than the preset cooling water pressure upper limit, it indicates that the water supply pressure is sufficient. The control device 9 controls the first regulating valve 10a to open and the water supply pump 7 to close, so that the water supply unit replenishes water to the cooling unit through the first water supply pipeline 110. If the first detection device 1b detects that the water supply pressure is less than or equal to the preset cooling water pressure upper limit, it indicates that the water supply pressure is insufficient. The control device 9 controls the first regulating valve 10a to close and the water supply pump 7 to open, so that the water supply unit replenishes water to the cooling unit through the second water supply pipeline 120. After the water supply unit replenishes water to the cooling unit for a period of time, if the second detection device 8b detects that the liquid level value of the water collection unit is greater than the preset liquid level lower limit value, and the third detection device 2b detects that the cooling water pressure value reaches the preset cooling water pressure upper limit value, it indicates that the cooling unit is in a state where water replenishment is not required at this time. The control device 9 controls the second regulating valve 2a to close and controls the open first regulating valve 10a or the open water supply pump 7 to close to control the water supply unit to stop replenishing water to the cooling unit.

[0116] like Figure 4 As shown, in the first water replenishment mode, the control device 9 determines that the chilled water pressure value is less than or equal to the preset chilled water pressure lower limit when the fourth detection device 3b detects that the chilled water pressure value is less than or equal to the preset chilled water pressure lower limit. The control device 9 controls the third regulating valve 3a to open, allowing the water supply unit to replenish water to the chilled water unit. At this time, if the first detection device 1b detects that the water supply pressure is greater than the preset chilled water pressure upper limit, it indicates that the water supply pressure is sufficient. The control device 9 controls the first regulating valve 10a to open and the water supply pump 7 to close, allowing the water supply unit to replenish water to the chilled water unit through the first water supply pipeline 110. If the first detection device 1b detects that the water supply pressure is less than or equal to the preset chilled water pressure upper limit, it indicates that the water supply pressure is insufficient. The control device 9 controls the first regulating valve 10a to close and the water supply pump 7 to open, allowing the water supply unit to replenish water to the chilled water unit through the second water supply pipeline 120. After the water supply unit replenishes water to the freezing unit for a period of time, if the fourth detection device 3b detects that the chilled water pressure value reaches the preset chilled water pressure upper limit value, indicating that the freezing unit is in a state where water replenishment is not required at this time, the control device 9 controls the third regulating valve 3a to close and controls the opened first regulating valve 10a or the opened water supply pump 7 to close to control the water supply unit to stop replenishing water to the freezing unit.

[0117] like Figure 5As shown, the second detection device 8b detects that the liquid level value of the water collecting part is less than or equal to the preset liquid level lower limit value and the fourth detection device 3b detects that the chilled water pressure value is less than or equal to the preset chilled water pressure lower limit value, indicating that both the cooling part and the freezing part need to be replenished with water. The control device 9 operates in the second water replenishment mode, controls the water supply pump 7 and the second regulating valve 2a to open to replenish water to the cooling part through the second water supply pipeline 120 first. When the second detection device 8b detects that the liquid level value of the water collecting part is greater than the preset liquid level lower limit value and the third detection device 2b detects that the cooling water pressure value reaches the preset cooling water pressure upper limit value, indicating that the cooling part is in a state where water replenishment is not required at this time, the control device 9 controls the second regulating valve 2a to close and controls the third regulating valve 3a to open to replenish water to the freezing part through the second water supply pipeline 120. When the fourth detection device 3b detects that the chilled water pressure value reaches the preset chilled water pressure upper limit value, indicating that the freezing part is in a state where water replenishment is not required at this time, the control device 9 controls the third regulating valve 3a and the water supply pump 7 to close and control the water supply part to stop replenishing water to the freezing part.

[0118] When the water supply pump 7 is turned on, in both the first water replenishment mode and the second water replenishment mode, the control device 9 can control the frequency of the water supply pump 7 based on the detection results of the detection unit, such as at least one of the water supply pressure, the water collection unit liquid level value, the cooling water pressure value, and the chilled water pressure value. For example, the frequency of the water supply pump 7 can be reduced if the water supply pressure is higher than a preset water supply pressure value; for another example, the frequency of the water supply pump 7 can be reduced if the water collection unit liquid level value is higher than a preset water collection unit liquid level value; for another example, the frequency of the water supply pump 7 can be reduced if the cooling water pressure value is higher than a preset cooling water pressure value or the chilled water pressure value is higher than a preset chilled water pressure value, etc.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not intended to limit them. Although the present disclosure has been described in detail with reference to preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solutions claimed for protection in the present disclosure.

Claims

1. A cooling station, characterized in that: include: A cooling unit comprising a cooling water return pipe (200) and a cooling water pump (2) whose inlet is connected to the cooling water return pipe (200); A freezing part, comprising a chilled water return pipe (300) and a chilled water pump (3) whose inlet is connected to the chilled water return pipe (300); A water supply unit is configured to supply water to the cooling unit and / or to the freezing unit, and comprises a water inlet, a water outlet, and a first water supply pipeline (110) and a second water supply pipeline (120) located in parallel between the water inlet and the water outlet, wherein the first water supply pipeline (110) comprises a first regulating valve (10a), and the second water supply pipeline (120) comprises a water supply pump (7), wherein the inlet of the water supply pump (7) is connected to the water inlet, and the outlet is connected to the water outlet, and the water outlet is connected to the cooling water return pipe (200) and / or the freezing water return pipe (300) in a disconnectable manner; The detection unit comprises a first detection device (1b), wherein the first detection device (1b) is configured to detect the water supply pressure at the water inlet end; and The control device (9) is connected to the detection unit, the first regulating valve (10a) and the water supply pump (7) by signal, and has a first water replenishment mode. In the first water replenishment mode, the control device (9) is configured to control the opening and closing of the first regulating valve (10a) and the water supply pump (7) according to the water supply pressure when the water supply unit replenishes water to the cooling unit and / or the freezing unit.

2. The cooling station according to claim 1, characterized in that: The control device (9) also has a second water replenishment mode. In the second water replenishment mode, the control device (9) is configured to control the water supply pump (7) to be turned on and the first regulating valve (10a) to be closed.

3. The cooling station according to claim 1, characterized in that: The second water supply pipeline (120) comprises a check valve (6), and the check valve (6) is located between the outlet of the water supply pump (7) and the water outlet end.

4. The cooling station according to any one of claims 1 to 3, characterized in that: The control device (9) is configured to control the frequency of the water supply pump (7) according to the detection result of the detection unit when the water supply pump (7) is turned on.

5. The cooling station according to any one of claims 1 to 3, characterized in that: The cooling unit includes a cooling tower (8), the cooling water return pipe (200) is connected between the cooling tower (8) and the cooling water pump (2), the detection unit includes a second detection device (8b), the second detection device (8b) is configured to detect a water collecting portion liquid level value of a water collecting portion (8a) in the cooling tower (8), and the control device (9) is configured to control whether the water supply unit replenishes water to the cooling unit according to the water collecting portion liquid level value; and / or The detection unit includes a third detection device (2b), the third detection device (2b) is configured to detect the cooling water pressure value at the inlet of the cooling water pump (2), and the control device (9) is configured to control whether the water supply unit replenishes water to the cooling unit according to the cooling water pressure value; and / or The detection unit includes a fourth detection device (3b), which is configured to detect the chilled water pressure value at the inlet of the chilled water pump (3), and the control device (9) is configured to control whether the water supply unit replenishes water to the freezing unit according to the chilled water pressure value.

6. The cooling station according to any one of claims 1 to 3, characterized in that: The cooling station comprises a second regulating valve (2a), the second regulating valve (2a) being connected between the water outlet and the cooling water pump (2), the control device (9) being signal-connected to the second regulating valve (2a), and being configured to control whether the water supply unit replenishes water to the cooling unit by controlling the opening and closing of the second regulating valve (2a); and / or The cold station includes a third regulating valve (3a), which is connected between the water outlet and the chilled water pump (3). The control device (9) is connected to the third regulating valve (3a) by signal and is configured to control whether the water supply part replenishes water to the freezing part by controlling the opening and closing of the third regulating valve (3a).

7. A method for replenishing water for a cold station according to any one of claims 1 to 6, characterized in that: When the water supply unit replenishes water to the cooling unit and / or the freezing unit, in the first water replenishment mode of the control device (9), the cold station water replenishment method includes: When the water supply pressure reaches a preset condition, the control device (9) controls the first regulating valve (10a) to open and controls the water supply pump (7) to close; and If the water supply pressure does not reach a preset condition, the control device (9) controls the first regulating valve (10a) to close and controls the water supply pump (7) to open.

8. The cold station water replenishment method according to claim 7, characterized in that: The control device (9) also has a second water replenishment mode. In the second water replenishment mode, the cold station water replenishment method includes the control device (9) controlling the water supply pump (7) to open and the first regulating valve (10a) to close.

9. The cold station water replenishment method according to claim 7 or 8, characterized in that: It also includes the control device (9) controlling the frequency of the water supply pump (7) according to the detection result of the detection unit when the water supply pump (7) is turned on.

10. The cold station water replenishment method according to claim 7 or 8, characterized in that: When the water supply unit replenishes water to the cooling unit, the preset condition includes that the water supply pressure is greater than a preset cooling water pressure upper limit value of the cooling water at the inlet of the cooling water pump (2); and / or When the water supply unit replenishes water to the freezing unit, the preset condition includes that the water supply pressure is greater than a preset upper limit value of the chilled water pressure of the chilled water at the inlet of the chilled water pump (3).

11. The cold station water replenishment method according to claim 7 or 8, characterized in that: The cooling unit includes a cooling tower (8), the cooling water return pipe (200) is connected between the cooling tower (8) and the cooling water pump (2), the detection unit includes a second detection device (8b), and the second detection device (8b) is configured to detect a water collecting portion liquid level value of a water collecting portion (8a) in the cooling tower (8); and / or The detection unit comprises a third detection device (2b), and the third detection device (2b) is configured to detect the cooling water pressure value at the inlet of the cooling water pump (2); and / or The detection unit comprises a fourth detection device (3b), and the fourth detection device (3b) is configured to detect the chilled water pressure value at the inlet of the chilled water pump (3); The cold station water replenishment method comprises: The control device (9) controls whether the water supply part supplies water to the cooling part according to the liquid level value of the water collection part; and / or The control device (9) controls whether the water supply unit replenishes water to the cooling unit according to the cooling water pressure value; and / or The control device (9) controls whether the water supply unit replenishes water to the freezing unit according to the chilled water pressure value.

12. The cold station water replenishment method according to claim 11, characterized in that: The cold station water replenishment method comprises: The liquid level value of the water collecting part is less than or equal to the preset liquid level lower limit value, and the control device (9) controls the water supply part to replenish water to the cooling part; and / or When the liquid level value of the water collecting part is greater than the preset lower limit value of the liquid level and the cooling water pressure value reaches the preset upper limit value of the cooling water pressure, the control device (9) controls the water supply part to stop replenishing water to the cooling part; and / or The chilled water pressure value is less than or equal to a preset chilled water pressure lower limit value, and the control device (9) controls the water supply part to replenish water to the freezing part; and / or When the chilled water pressure value reaches a preset chilled water pressure upper limit, the control device (9) controls the water supply unit to stop supplying water to the freezing unit.

13. The cold station water replenishment method according to claim 7 or 8, characterized in that: The cooling station comprises a second regulating valve (2a), the second regulating valve (2a) being connected between the water outlet and the cooling water pump (2), the control device (9) being signal-connected to the second regulating valve (2a); and / or The cold station comprises a third regulating valve (3a), the third regulating valve (3a) being connected between the water outlet and the chilled water pump (3), and the control device (9) being signal-connected to the third regulating valve (3a); The cold station water replenishment method further comprises: The control device (9) controls whether the water supply unit supplies water to the cooling unit by controlling the opening and closing of the second regulating valve (2a); and / or The control device (9) controls whether the water supply unit supplies water to the freezing unit by controlling the opening and closing of the third regulating valve (3a).

14. The cold station water replenishment method according to claim 7 or 8, characterized in that: The cold station water replenishment method comprises: when both the cooling part and the freezing part need to be replenished with water, the control device (9) controls the water supply part to first replenish water to the cooling part and then replenish water to the freezing part.

15. The cold station water replenishment method according to claim 14, characterized in that: The control device (9) also has a second water replenishment mode. In the second water replenishment mode, the control device (9) controls the water supply pump (7) to be turned on and the first regulating valve (10a) to be closed; When both the cooling unit and the freezing unit need to be replenished with water, the cold station water replenishment method includes: By using the second water replenishment mode, water is first replenished to the cooling part, and then to the freezing part; or The cooling part is first replenished with water through the second water replenishment mode, and then the freezing part is replenished with water through the first water replenishment mode.

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