Air conditioner emergency water replenishing system and air conditioner

Abstract

The utility model discloses an air conditioner emergency water supplementing system and an air conditioner, and relates to the technical field of air conditioners. The air conditioner emergency water replenishing system comprises an emergency water replenishing tank, an emergency water replenishing pump, a water replenishing pipeline and a tap water pipeline. The other end of the tap water pipeline is connected with the cooling tower; an inlet of the emergency make-up pump is connected with the emergency make-up tank through a make-up pipeline, an outlet of the emergency make-up pump is connected with the cooling system through the cooling tower, and the outlet of the emergency make-up pump is further connected with the refrigeration system; a first control valve is arranged on the water supplementing pipeline and used for controlling on-off of water flow in the water supplementing pipeline. A second control valve is arranged on a pipeline for connecting the emergency make-up pump and the cooling tower and is used for controlling on-off of water flow in the pipeline for connecting the emergency make-up pump and the cooling tower; and a third control valve is arranged on a pipeline for connecting the emergency make-up pump and the refrigeration system and is used for controlling on-off of water flow in the pipeline for connecting the emergency make-up pump and the refrigeration system. The emergency water replenishing system of the air conditioner can meet the requirement of replenishing a large amount of water in a short time.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to an air conditioning emergency water replenishment system and an air conditioner. Background Art

[0002] Water-cooled air conditioning systems consist of two key components: the cooling and refrigeration systems. Cooling water and chilled water are the most important media in the cooling circulation systems of the condenser and evaporator. A loss of cooling water or chilled water will cause the chiller to shut down and interrupt cooling, making it difficult to restore cooling quickly. This can impact cooling and business downtime at the terminal. Currently, cooling water systems are replenished automatically via mechanical float valves within the cooling towers, while chilled water systems are replenished via constant-pressure water replenishment devices. However, when a sudden and unexpected loss of cooling water or chilled water occurs, these replenishment methods are unable to meet the demand for large-scale water replenishment in a short period of time. Utility Model Content

[0003] The present application discloses an air conditioner emergency water replenishment system and an air conditioner, which can meet the demand for large amounts of water replenishment in a short period of time.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] In a first aspect, the present application provides an air conditioner emergency water replenishment system, the air conditioner including a cooling tower, a cooling system and a refrigeration system, the air conditioner emergency water replenishment system including an emergency water replenishment tank, an emergency water replenishment pump, a water replenishment pipeline and a tap water pipeline;

[0006] One end of the tap water pipeline is connected to the municipal water supply, and the other end is connected to the cooling tower;

[0007] The inlet of the emergency water supply pump is connected to the emergency water supply tank through the water supply pipeline, the outlet of the emergency water supply pump is connected to the cooling system through the cooling tower, and the outlet of the emergency water supply pump is also connected to the refrigeration system;

[0008] The water supply pipeline is provided with a first control valve for controlling the on-off of the water flow in the water supply pipeline;

[0009] A second control valve is provided on the pipeline connecting the emergency water supply pump and the cooling tower, for controlling the on-off of the water flow in the pipeline connecting the emergency water supply pump and the cooling tower;

[0010] A third control valve is provided on the pipeline connecting the emergency water supply pump and the refrigeration system, which is used to control the on-off of water flow in the pipeline connecting the emergency water supply pump and the refrigeration system.

[0011] The above-mentioned air conditioning emergency water replenishment system includes an emergency water replenishment tank, an emergency water replenishment pump, a water replenishment pipeline and a tap water pipeline. Among them, one end of the tap water pipeline is connected to the municipal water supply, and the other end is connected to the cooling tower of the air conditioner. The cooling tower is connected to the cooling system of the air conditioner, and is used to supply water to the cooling system normally through the cooling tower to maintain the normal operation of the air conditioning system. One end of the water replenishment pipeline is connected to the emergency water replenishment tank, and the other end is connected to the inlet of the emergency water replenishment pump. The outlet of the emergency water replenishment pump is respectively connected to the cooling tower and the refrigeration system of the air conditioner. When the cooling tower, cooling system or refrigeration system is short of water, the emergency water replenishment tank and the emergency water replenishment pump are used to quickly replenish water to the cooling tower, cooling system or refrigeration system, thereby avoiding the risk of air conditioning system downtime caused by large-scale water loss. A first control valve is provided on the water replenishment pipeline, a second control valve is provided on the pipeline connecting the emergency water replenishment pump and the cooling tower, and a third control valve is provided on the pipeline connecting the emergency water replenishment pump and the refrigeration system. When the cooling tower or the cooling system is short of a large amount of water, the first control valve and the second control valve can be opened, and the emergency water supply pump can be turned on to quickly replenish water to the cooling tower or the cooling system; when the refrigeration system is short of a large amount of water, the first control valve and the third control valve can be opened, and the emergency water supply pump can be turned on to quickly replenish water to the refrigeration system. When a municipal water supply accident occurs, the first control valve, the second control valve and the third control valve can be opened, and the emergency water supply pump can be turned on to quickly replenish water to the cooling tower, the cooling system and the refrigeration system, and maintain the normal operation of the air-conditioning system. When the cooling tower, the cooling system or the refrigeration system resumes normal operation, the emergency water supply pump and the corresponding first control valve, the second control valve or the third control valve can be turned off, and the municipal water supply can continue to be used to supply water to the air-conditioning system normally. The air-conditioning emergency water supply system of the present application realizes the function of quickly replenishing water when the cooling tower, the cooling system or the refrigeration system is short of a large amount of water, shortens the water supply time, reduces the operating risk of the data center, makes up for the shortcomings of the traditional system, and avoids the risks caused by large-scale water loss.

[0012] In some embodiments, the air conditioner emergency water replenishment system further includes a first pipeline, one end of the first pipeline is connected to the tap water pipeline, and the other end is connected to the water replenishment pipeline;

[0013] The first control valve is arranged between the emergency water supply tank and a first connection position, wherein the first connection position is the connection point between the water supply pipeline and the first pipeline.

[0014] In some embodiments, a fourth control valve is provided on the first pipeline for controlling the on-off of the water flow in the first pipeline.

[0015] In some embodiments, a first one-way valve is provided on the water supply pipeline for allowing water to flow from the emergency water supply tank to the emergency water supply pump;

[0016] A second one-way valve is provided on the pipeline connecting the emergency water supply pump and the cooling tower, for allowing water to flow from the emergency water supply pump to the cooling tower;

[0017] A third one-way valve is provided on the pipeline connecting the emergency water supply pump and the refrigeration system, for allowing water to flow from the emergency water supply pump to the refrigeration system.

[0018] In some embodiments, a fourth one-way valve is provided on the first pipeline to allow water to flow from the water supply pipeline to the tap water pipeline.

[0019] In some embodiments, the tap water pipeline is provided with a pressure sensor, and the pressure sensor is provided between the inlet of the tap water pipeline and a second connection position, wherein the second connection position is the connection point between the tap water pipeline and the first pipeline.

[0020] In some embodiments, the tap water pipeline is provided with a fifth control valve and a fifth one-way valve;

[0021] The fifth control valve is arranged between the inlet of the tap water pipeline and the second connection position, and is used to control the on and off of the water flow in the tap water pipeline; the fifth one-way valve is arranged between the inlet of the tap water pipeline and the second connection position, and is used to allow water to flow from the tap water pipeline to the cooling tower.

[0022] In some embodiments, a water level sensor is provided in the cooling tower.

[0023] In some embodiments, the air conditioning emergency water replenishment system further includes an alarm and a controller;

[0024] The controller is signal-connected to the pressure sensor, the water level sensor and the alarm, and is used to control the alarm to sound an alarm when the measured pressure value or water level value is lower than a preset threshold.

[0025] In some embodiments, the controller is signal-connected to the first control valve, the second control valve, the third control valve, the fourth control valve, and the fifth control valve, and is configured to open or close the corresponding control valves according to pressure values ​​and water level values.

[0026] In a second aspect, the present application provides an air conditioner, comprising a cooling tower, a cooling system, a refrigeration system, and the air conditioner emergency water replenishment system as described in the first aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of an air conditioning emergency water replenishment system provided in an embodiment of the present application;

[0028] Figure 2A flow chart of a control method for an air conditioning emergency water replenishment system provided in an embodiment of the present application;

[0029] Icons: 01. Cooling tower; 02. Cooling system; 03. Refrigeration system; 1. Emergency water supply tank; 2. Emergency water supply pump; 3. Water supply pipeline; 4. Tap water pipeline; 5. First control valve; 6. Second control valve; 7. Third control valve; 8. First pipeline; 9. Fourth control valve; 10. First check valve; 11. Second check valve; 12. Third check valve; 13. Fourth check valve; 14. Pressure sensor; 15. Water level sensor; 16. Cooling pump; 17. First pressure sensor; 18. Second pressure sensor; 19. Refrigeration pump; 20. Third pressure sensor; 21. Fourth pressure sensor; 22. Pressure regulating tank; 23. Fifth check valve; 24. Fifth control valve; A. First connection position; B. Second connection position. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two.

[0031] The terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of this application, unless otherwise specified, "plurality" means two or more.

[0032] First, as Figure 1 As shown, the embodiment of the present application provides an air conditioner emergency water replenishment system, the air conditioner includes a cooling tower 01, a cooling system 02 and a refrigeration system 03, and the air conditioner emergency water replenishment system includes an emergency water replenishment tank 1, an emergency water replenishment pump 2, a water replenishment pipeline 3 and a tap water pipeline 4;

[0033] One end of the tap water pipe 4 is connected to the municipal water supply, and the other end is connected to the cooling tower 01;

[0034] The inlet of the emergency water supply pump 2 is connected to the emergency water supply tank 1 through the water supply pipeline 3, and the outlet of the emergency water supply pump 2 is connected to the cooling system 02 through the cooling tower 01. The outlet of the emergency water supply pump 2 is also connected to the refrigeration system 03;

[0035] A first control valve 5 is provided on the water supply pipeline 3 to control the on-off of the water flow in the water supply pipeline 3;

[0036] A second control valve 6 is provided on the pipeline connecting the emergency water supply pump 2 and the cooling tower 01, which is used to control the on-off of the water flow in the pipeline connecting the emergency water supply pump 2 and the cooling tower 01;

[0037] A third control valve 7 is provided on the pipeline connecting the emergency water supply pump 2 and the refrigeration system 03, for controlling the on-off of the water flow in the pipeline connecting the emergency water supply pump 2 and the refrigeration system 03.

[0038] The air conditioner emergency water replenishment system includes an emergency water replenishment tank 1, an emergency water replenishment pump 2, a water replenishment pipeline 3, and a tap water pipeline 4. The tap water pipeline 4 is connected to the municipal water supply at one end and to the air conditioner's cooling tower 01 at the other end. Cooling tower 01 is connected to the air conditioner's cooling system 02, ensuring a normal water supply to the cooling system 02 through cooling tower 01, thereby maintaining the normal operation of the air conditioner system. The water replenishment pipeline 3 is connected to the emergency water replenishment tank 1 at one end and to the inlet of the emergency water replenishment pump 2 at the other end. The outlet of the emergency water replenishment pump 2 is connected to the air conditioner's cooling tower 01 and refrigeration system 03, respectively. When the cooling tower 01, cooling system 02, or refrigeration system 03 experiences a significant water shortage, the emergency water replenishment tank 1 and emergency water replenishment pump 2 can quickly replenish these systems, thereby mitigating risks such as air conditioner system downtime caused by significant water loss. A first control valve 5 is installed on the water supply pipeline 3, a second control valve 6 is installed on the pipeline connecting the emergency water supply pump 2 to the cooling tower 01, and a third control valve 7 is installed on the pipeline connecting the emergency water supply pump 2 to the refrigeration system 03. When the cooling tower 01 or the cooling system 02 is experiencing a significant water shortage, the first and second control valves 5 and 6 can be opened, and the emergency water supply pump 2 can be activated to quickly replenish the cooling tower 01 or the cooling system 02. When the refrigeration system 03 is experiencing a significant water shortage, the first and third control valves 5 and 7 can be opened, and the emergency water supply pump 2 can be activated to quickly replenish the refrigeration system 03. In the event of a sudden municipal water supply incident, the first, second, and third control valves 6 and 7 can be opened, and the emergency water supply pump 2 can be activated to quickly replenish the cooling tower 01, the cooling system 02, and the refrigeration system 03, maintaining normal operation of the air conditioning system. When cooling tower 01, cooling system 02, or refrigeration system 03 resumes normal operation, emergency water replenishment pump 2 and the corresponding first control valve 5, second control valve 6, or third control valve 7 can be closed, and municipal water supply can continue to be used to supply water to the air conditioning system normally. The air conditioning emergency water replenishment system of the embodiment of the present application realizes a rapid water replenishment function when cooling tower 01, cooling system 02, or refrigeration system 03 is severely short of water, shortening the water replenishment time, reducing the operational risk of the data center, compensating for the shortcomings of traditional systems, and avoiding the risks caused by large-scale water loss.

[0039] It should be noted that, by adopting the air conditioning emergency water replenishment system provided in the embodiment of the present application, the water replenishment time of the cooling tower 01 water level from 0cm to 25cm is reduced from the traditional 40 minutes to 9 minutes, and the emergency water replenishment time is greatly shortened. This shows that the air conditioning emergency water replenishment system of the embodiment of the present application improves the emergency replenishment capacity of the cooling tower 01 in the event of a large amount of water loss, shortening the emergency repair time. Moreover, when the cooling system 02 or the refrigeration system 03 loses a large amount of water, the water replenishment time can be shortened from 2 hours to less than 30 minutes, reducing the operation risk of the central air conditioning system. In addition, the air conditioning emergency water replenishment system of the embodiment of the present application is modified on the traditional system, saving manufacturing costs and not increasing the workload of daily equipment maintenance.

[0040] In some embodiments, the air conditioner emergency water replenishment system further includes a first pipeline 8 , one end of the first pipeline 8 is connected to the tap water pipeline 4 , and the other end is connected to the water replenishment pipeline 3 ;

[0041] The first control valve 5 is provided between the emergency water supply tank 1 and the first connection position A, wherein the first connection position A is the connection point between the water supply pipeline 3 and the first pipeline 8 .

[0042] One possible implementation method is Figure 1 As shown, the water supply line 3 is connected to the tap water line 4 via a first line 8. The connection point between the water supply line 3 and the first line 8 is a first connection point A. The first connection point A is located on the side of the first control valve 5 away from the emergency water supply tank 1. When the municipal water supply is interrupted, the first control valve 5 can be opened to allow water in the emergency water supply tank 1 to enter the tap water line 4 through the first line 8. This allows for rapid water replenishment of the air conditioning system during a municipal water outage, ensuring normal operation of the air conditioning system.

[0043] It should be noted that the emergency water supply pump 2, the water supply pipeline 3 and the first pipeline 8 can be connected through a three-way pipeline, and the emergency water supply pump 2, the cooling tower 01 and the refrigeration system 03 can also be connected through a three-way pipeline.

[0044] In some embodiments, a fourth control valve 9 is provided on the first pipeline 8 for controlling the on-off of the water flow in the first pipeline 9 .

[0045] One possible implementation method is Figure 1 As shown, since the water replenishment speed of using the emergency water replenishment tank 1 alone is slower than that of using the emergency water replenishment pump 2, when only the municipal water supply is interrupted and the cooling tower 01, cooling system 02, or refrigeration system 03 is not experiencing a significant water shortage, only the first control valve 5 and the fourth control valve 9 can be opened, and the emergency water replenishment tank 1 can be used for water replenishment. When the cooling tower 01, cooling system 02, or refrigeration system 03 is experiencing a significant water shortage, to increase the water replenishment efficiency, the first control valve 5 can be opened, the fourth control valve 9 can be closed, and the corresponding second control valve 6 or third control valve 7 can be opened simultaneously, so that the water in the emergency water replenishment tank 1 can be replenished through the emergency water replenishment pump 2, thereby increasing the water replenishment rate, achieving a rapid water replenishment function, and ensuring the normal operation of the air conditioning system.

[0046] It should be noted that manual butterfly valves are also provided on the water supply pipeline 3, the tap water pipeline 4 and the first pipeline 8 to control the size of the water flow.

[0047] In some embodiments, a first one-way valve 10 is provided on the water supply pipeline 3 to allow water to flow from the emergency water supply tank 1 to the emergency water supply pump 2;

[0048] A second one-way valve 11 is provided on the pipeline connecting the emergency water supply pump 2 and the cooling tower 01, for allowing water to flow from the emergency water supply pump 2 to the cooling tower 01;

[0049] A third one-way valve 12 is provided on the pipeline connecting the emergency water supply pump 2 and the refrigeration system 03 , for allowing water to flow from the emergency water supply pump 2 to the refrigeration system 03 .

[0050] One possible implementation method is Figure 1 As shown, due to the characteristics of water flow pressure, water will flow from the side with high pressure to the side with low pressure. In order to prevent water from flowing back, the embodiment of the present application is provided with a first one-way valve 10 on the water supply pipeline 3, which only allows water to flow from the emergency water supply tank 1 to the emergency water supply pump 2; a second one-way valve 11 is provided on the pipeline connecting the emergency water supply pump 2 and the cooling tower 01, which only allows water to flow from the emergency water supply pump 2 to the cooling tower 01; a third one-way valve 12 is provided on the pipeline connecting the emergency water supply pump 2 and the refrigeration system 03, which only allows water to flow from the emergency water supply pump 2 to the refrigeration system 03. The setting of the first one-way valve 10, the second one-way valve 11, and the third one-way valve 12 can prevent the water in the air-conditioning system from flowing back when the water supply pressure is insufficient, thereby affecting the normal operation of the air-conditioning system. It should be noted that a pressure stabilizing tank 22 is also provided on the pipeline connecting the emergency water supply pump 2 and the refrigeration system 03 to stabilize the water flow pressure in the pipeline. The tap water pipeline 4 is further provided with a fifth one-way valve 23 , which is arranged at the second connection position B on a side away from the entrance of the tap water optical path 4 , and also serves to prevent water from flowing back.

[0051] In some embodiments, a fourth one-way valve 13 is provided on the first pipeline 8 to allow water to flow from the water supply pipeline 3 to the tap water pipeline 4.

[0052] One possible implementation method is Figure 1 As shown, similarly, in order to prevent water in the tap water pipe 4 from flowing back to the water supply pipe 3, the embodiment of the present application is provided with a fourth one-way valve 13 on the first pipe 8 to ensure the normal operation of the air-conditioning system.

[0053] In some embodiments, the tap water pipe 4 is provided with a pressure sensor 14 , which is provided between the inlet of the tap water pipe 4 and the second connection position B, wherein the second connection position B is the connection point between the tap water pipe 4 and the first pipe 8 .

[0054] One possible implementation method is Figure 1As shown, to monitor the pressure of the water flowing in the tap water pipe 4, a pressure sensor 14 is installed on the tap water pipe 4. The connection between the tap water pipe 4 and the first pipe 8 is at the second connection point B, located on the side of the pressure sensor 14 facing away from the inlet of the tap water pipe 4. By monitoring the pressure value of the pressure sensor 14, it can be determined whether the emergency water tank 1 needs to replenish the air conditioning system, thus enabling the switching of the replenishment water source and further ensuring the water replenishment function when the air conditioning system is short of water.

[0055] In some embodiments, as Figure 1 As shown, the tap water pipeline 4 is provided with a fifth control valve 24 and a fifth check valve 23. The fifth control valve 24 is located between the inlet of the tap water pipeline 4 and the second connection point B, and is used to control the flow of water in the tap water pipeline 4. The fifth check valve 23 is located between the inlet of the tap water pipeline 4 and the second connection point B, and is used to allow water to flow from the tap water pipeline 4 to the cooling tower 01. When the municipal water supply pressure is less than 0.05 MPa, the municipal water supply control valve is closed, and the first control valve 5 of the emergency water supply tank 1 is opened. When the municipal water supply pressure is not less than 0.05 MPa, the municipal water supply control valve is opened, and the first control valve 5 of the emergency water supply tank 1 is closed (considering the normal opening pressure of the float valve in the cooling tower, the height of the emergency water supply tank should be 15 meters above the cooling tower liquid level). Only one of the fifth control valve 24 (municipal water supply control valve) and the first control valve 5 of the emergency water supply tank 1 can be opened. The two are interlocked through logic and electricity, and cannot be opened at the same time.

[0056] In some embodiments, a water level sensor 15 is provided in the cooling tower 01 .

[0057] One possible implementation method is Figure 1 As shown, in order to monitor the amount of water in the cooling tower 01, a water level sensor 15 is provided in the cooling tower 01 in the embodiment of the present application, so as to determine whether it is necessary to open the emergency water supply tank 1 to replenish water to the cooling tower, or to open the emergency water supply tank 1 and the emergency water supply pump 2 to quickly replenish water to the cooling tower to ensure the normal operation of the air-conditioning system.

[0058] It should be noted that a water level sensor may also be provided in the emergency water supply tank 1 to monitor the water level of the emergency water supply tank 1 in real time to ensure that the emergency water supply tank 1 has sufficient emergency water.

[0059] In some embodiments, the air conditioning emergency water replenishment system further includes an alarm and a controller;

[0060] The controller is signal-connected to the pressure sensor 14 , the water level sensor 15 and the alarm, and is used to control the alarm to sound an alarm when the measured pressure value or water level value is lower than a preset threshold.

[0061] One possible implementation method is Figure 1As shown, the air conditioning emergency water replenishment system of the embodiment of the present application also includes an alarm (not shown in the figure) and a controller (not shown in the figure). The controller is signal-connected to the pressure sensor 14, the water level sensor 15, and the alarm. When the pressure value detected by the pressure sensor 14 or the water level value detected by the water level sensor 15 is lower than the corresponding preset threshold, the controller will control the alarm to sound an alarm. The staff can decide whether to start the emergency water replenishment tank 1 and the emergency water replenishment pump 2 through on-site confirmation. The setting of the controller and the alarm can reduce the frequency of staff inspections and ensure real-time monitoring of the pressure in the tap water pipeline 4 and the water level in the cooling tower 01.

[0062] It should be noted that when a water level sensor is installed in the emergency water tank 1, its water level sensor can also be connected to the controller signal. When the water level of the emergency water tank 1 is lower than the minimum threshold or higher than the maximum threshold, an alarm is triggered and restored through on-site processing by the staff.

[0063] In some embodiments, the controller is signal-connected to the first control valve 5 , the second control valve 6 , the third control valve 7 and the fourth control valve 9 , and is configured to open or close the corresponding control valves according to the pressure value and the water level value.

[0064] One possible implementation method is Figure 1 As shown, the controller is signal-connected to the first control valve 5, the second control valve 6, the third control valve 7, and the fourth control valve 9. When the pressure in the tap water line 4 falls below a preset threshold, the controller opens the first and fourth control valves 5 and 9, allowing the emergency water supply tank 1 to resume normal water supply. When the water level in the cooling tower 01 falls below a preset threshold, the controller opens the first and second control valves 5 and 6, and simultaneously activates the emergency water supply pump 2, enabling rapid water replenishment of the cooling tower 01.

[0065] It should be noted that cooling system 02 includes a cooling pump 16, with a first pressure sensor 17 installed at the inlet of cooling pump 16 and a second pressure sensor 18 installed at the outlet of cooling pump 16. Both first pressure sensor 17 and second pressure sensor 18 are signal-connected to a controller. When the pressure value of either first pressure sensor 17 or second pressure sensor 18 falls below a preset threshold, the controller controls the opening of first control valve 5 and second control valve 6, and simultaneously activates emergency water supply pump 2, enabling rapid water replenishment to cooling system 02 through cooling tower 01. Refrigeration system 03 includes a refrigeration pump 19, with a third pressure sensor 20 installed at the inlet of refrigeration pump 19 and a fourth pressure sensor 21 installed at the outlet of refrigeration pump 19. Both third pressure sensor 20 and fourth pressure sensor 21 are signal-connected to the controller. When the pressure value of either third pressure sensor 20 or fourth pressure sensor 21 falls below a preset threshold, the controller controls the opening of first control valve 5 and third control valve 7, and simultaneously activates emergency water supply pump 2, enabling rapid water replenishment to refrigeration system 03.

[0066] It should be noted that the emergency water supply pump 2, cooling pump 16, and refrigeration pump 19 of the embodiment of the present application can be used with one in use and one in reserve, or with multiple in reserve, to enable rapid replacement of equipment after a failure, ensuring the normal operation of the air conditioning system. There can also be multiple cooling towers 01, with multiple cooling towers 01 jointly supplying water to the cooling system 02. Pressure sensors can also be installed at the inlet and outlet of the cooling tower 01 to monitor the water pressure of the cooling tower 01.

[0067] The emergency water supply pump, water flow pipeline, control valve, etc. of the embodiment of the present application are selected and configured according to the on-site requirements, so as to realize the rapid water supply function and avoid the risk caused by large-scale water loss. According to the water storage capacity in the cooling tower, the required water supply pipeline diameter is calculated. The total water volume in the cooling tower and cooling water pipeline of the air conditioning system of the embodiment of the present application is about 400m 3 When an accident occurs, if the pipe bursts and water leaks, the water loss is 200m 3 The water volume is estimated and the water replenishment needs to be completed within 30 minutes. It is recommended to use a pipe larger than DN100 and a flow rate greater than 450m 3 / hour, and a water pump with a head greater than 28 meters (the water pump flow, power, head, etc. are selected according to on-site requirements).

[0068] This embodiment of the application utilizes a local area network (LAN) to connect DDC, PLC, and software programming to form an automatic control system for management. The pressure sensor in the tap water pipeline and the water level sensor in the cooling tower are connected to the automatic control system via a 485 communication line. The BA automatic control system can also control the start and stop of the emergency water supply pump. When the pressure or water level of the air conditioning system falls below a preset threshold, the automatic control system triggers an alarm message and pushes it to the dynamic and environmental system, triggering an audible and visual alarm.

[0069] In order to make the solution provided by the embodiment of the present application easier to understand, the control method of the air conditioning emergency water replenishment system is described in detail below through a specific embodiment. Figure 2 As shown, the process includes the following steps:

[0070] S201, obtaining pressure values ​​of a pressure sensor of a tap water pipeline, a first pressure sensor of a cooling pump, a second pressure sensor of a cooling pump, a third pressure sensor of a freezing pump, and a fourth pressure sensor of a freezing pump, and obtaining a water level value of a water level sensor of a cooling tower; and executing S202, S205, S208, and S211;

[0071] S202: Determine whether the pressure value of the tap water pipeline is lower than a preset threshold; if so, execute S203; if not, execute S204;

[0072] S203, the controller controls the first electric valve and the fourth electric valve to open, and continues to execute S202;

[0073] S204: The controller controls the first electric valve and the fourth electric valve to close.

[0074] At the same time, the control method of the air conditioning emergency water replenishment system in the embodiment of the present application further performs the following steps:

[0075] S205: Determine whether the water level of the cooling tower is lower than a preset threshold; if so, execute S206; if not, execute S207;

[0076] S206: The controller controls the first electric valve to open, delays the opening of the second electric valve for 2 minutes, controls the alarm to sound an alarm, and continues to execute S205;

[0077] S207: The controller controls the first electric valve and the second electric valve to close.

[0078] At the same time, the control method of the air conditioning emergency water replenishment system in the embodiment of the present application further performs the following steps:

[0079] S208, determining whether the pressure value of the cooling pump is lower than a preset threshold; if so, executing S209, if not, executing S210;

[0080] S209: The controller controls the first electric valve and the second electric valve to open, and controls the alarm to sound an alarm, and then continues to execute S208;

[0081] S210: The controller controls the first electric valve and the second electric valve to close.

[0082] At the same time, the control method of the air conditioning emergency water replenishment system in the embodiment of the present application further performs the following steps:

[0083] S211, determining whether the pressure value of the freezing pump is lower than a preset threshold; if so, executing S212, if not, executing S213;

[0084] S212, the controller controls the first electric valve and the third electric valve to open, and controls the alarm to sound an alarm, and continues to execute S211;

[0085] S213: The controller controls the first electric valve and the third electric valve to close.

[0086] It should be noted that after the controller controls the alarm to sound an alarm, the automatic control system will pop up an interface for manually confirming the start of the emergency water supply pump. The staff is required to confirm on site. After eliminating the water leakage in the pipeline, the emergency water supply pump is manually turned on to avoid false alarms and improve accuracy. After the pressure value and water level value return to normal, the emergency water supply pump needs to be manually turned off. In one possible implementation method, the minimum water level threshold in the cooling tower is 18cm, and the maximum water level threshold is 25cm. When the water level value is lower than 18cm, rapid water supply is required. When the water level value is higher than 25cm, rapid water supply needs to be stopped. The starting threshold value (0.1MPa) of the emergency water supply pump in the embodiment of the present application is slightly lower than the starting threshold value of the constant pressure water supply pump of the refrigeration system in the embodiment of the present application, which can ensure the rapid water supply function when the constant pressure water supply pump cannot meet the requirements.

[0087] Second, as Figure 1 As shown, the embodiment of the present application provides an air conditioner, including a cooling tower 01, a cooling system 02, a refrigeration system 03, and the air conditioner emergency water replenishment system according to the first aspect. Since the air conditioner includes all the technical features of the air conditioner emergency water replenishment system, the air conditioner also includes all the beneficial effects of the air conditioner emergency water replenishment system, which will not be further described here.

[0088] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. An air conditioning emergency water replenishment system, the air conditioning comprising a cooling tower, a cooling system and a refrigeration system, characterized in that: Including emergency water supply tank, emergency water supply pump, water supply pipeline and tap water pipeline; One end of the tap water pipeline is connected to the municipal water supply, and the other end is connected to the cooling tower; The inlet of the emergency water supply pump is connected to the emergency water supply tank through the water supply pipeline, the outlet of the emergency water supply pump is connected to the cooling system through the cooling tower, and the outlet of the emergency water supply pump is also connected to the refrigeration system; The water supply pipeline is provided with a first control valve for controlling the on-off of the water flow in the water supply pipeline; A second control valve is provided on the pipeline connecting the emergency water supply pump and the cooling tower, for controlling the on-off of the water flow in the pipeline connecting the emergency water supply pump and the cooling tower; A third control valve is provided on the pipeline connecting the emergency water supply pump and the refrigeration system, which is used to control the on-off of water flow in the pipeline connecting the emergency water supply pump and the refrigeration system.

2. The air conditioning emergency water replenishment system according to claim 1, characterized in that: The air conditioning emergency water replenishment system further includes a first pipeline, one end of which is connected to the tap water pipeline, and the other end is connected to the water replenishment pipeline; The first control valve is arranged between the emergency water supply tank and a first connection position, wherein the first connection position is the connection point between the water supply pipeline and the first pipeline.

3. The air conditioning emergency water replenishment system according to claim 2, characterized in that: A fourth control valve is provided on the first pipeline for controlling the on-off of the water flow in the first pipeline.

4. The air conditioning emergency water replenishment system according to claim 1, characterized in that: A first one-way valve is provided on the water supply pipeline for allowing water to flow from the emergency water supply tank to the emergency water supply pump; A second one-way valve is provided on the pipeline connecting the emergency water supply pump and the cooling tower, for allowing water to flow from the emergency water supply pump to the cooling tower; A third one-way valve is provided on the pipeline connecting the emergency water supply pump and the refrigeration system, for allowing water to flow from the emergency water supply pump to the refrigeration system.

5. The air conditioning emergency water replenishment system according to claim 3, characterized in that: A fourth one-way valve is provided on the first pipeline for allowing water to flow from the water supply pipeline to the tap water pipeline.

6. The air conditioning emergency water replenishment system according to claim 3, characterized in that: The tap water pipeline is provided with a pressure sensor, and the pressure sensor is provided between the inlet of the tap water pipeline and a second connection position, wherein the second connection position is the connection point between the tap water pipeline and the first pipeline.

7. The air conditioning emergency water replenishment system according to claim 6, characterized in that: The tap water pipeline is provided with a fifth control valve and a fifth one-way valve; The fifth control valve is arranged between the inlet of the tap water pipeline and the second connection position, and is used to control the on-off of the water flow in the tap water pipeline; the fifth one-way valve is arranged between the inlet of the tap water pipeline and the second connection position, and is used to allow water to flow from the tap water pipeline to the cooling tower, and a water level sensor is provided in the cooling tower.

8. The air conditioning emergency water replenishment system according to claim 7, characterized in that: The air conditioning emergency water replenishment system also includes an alarm and a controller; The controller is signal-connected to the pressure sensor, the water level sensor and the alarm, and is used to control the alarm to sound an alarm when the measured pressure value or water level value is lower than a preset threshold.

9. The air conditioning emergency water replenishment system according to claim 8, characterized in that: The controller is signal-connected to the first control valve, the second control valve, the third control valve, the fourth control valve and the fifth control valve, and is used to open or close the corresponding control valve according to the pressure value and the water level value.

10. An air conditioner, characterized in that: The air conditioning emergency water replenishment system comprises a cooling tower, a cooling system, a refrigeration system and the air conditioning emergency water replenishment system according to any one of claims 1 to 9.

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