Integrated cold station and control method thereof

Abstract

The application discloses an integrated cold station and a control method thereof, relates to the air conditioning and refrigeration technical field, and aims at solving the problem that the internal temperature of the integrated cold station is high and the safe operation of the equipment is affected in the prior art. The integrated cold station comprises an evaporative cooling water chiller assembly, a first circulating pipeline, a second circulating pipeline and a mechanical refrigeration water chiller assembly. The mechanical refrigeration water chiller assembly is arranged in a shell and comprises a condenser and an evaporator. The condenser is connected with the evaporative cooling water chiller assembly through the first circulating pipeline, a heat dissipation device is arranged in the shell and can exchange heat with air in the shell, and the heat dissipation device is connected with the evaporator through the second circulating pipeline. In this way, the cold water generated by the mechanical refrigeration water chiller assembly is used as a cold source to dissipate heat in the shell, the normal operation of the equipment in the shell is facilitated, and the safety of the cold station is ensured. Thus, the integrated cold station provided by the application solves the problem that the internal temperature of the integrated cold station is high and the safe operation of the equipment is affected in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air conditioning refrigeration technology, and in particular to an integrated cold station and a control method thereof. BACKGROUND

[0002] With the development of information technology, data centers are being used more and more widely. High-density equipment in data centers generates a large amount of heat during operation, which needs to be reduced by a refrigeration system to ensure the normal operation of the equipment. The traditional air conditioning refrigeration system needs to occupy a large amount of space and energy, and the cost is relatively high, so the integrated cold station has become a more and more popular choice.

[0003] The integrated cold station is a refrigeration system that integrates multiple devices such as refrigeration units, cooling towers, water pumps, and water tanks. By integrating multiple devices, the integrated cold station can achieve efficient refrigeration while occupying relatively less space and energy.

[0004] However, the devices inside the integrated cold station generate a large amount of heat during operation, which will affect the normal operation of the devices if not dissipated in time, and the safety of the cold station will also be greatly reduced. SUMMARY

[0005] The present application provides an integrated cold station and a control method thereof, which solves the problem of the related art that the internal heat dissipation of the integrated cold station cannot be timely, thereby affecting the safe operation of the device.

[0006] To achieve the above purpose, the present application adopts the following technical scheme:

[0007] The present application provides an integrated cold station, which comprises an evaporative cooling water chiller unit assembly, a first circulating pipeline, a second circulating pipeline, and a mechanical refrigeration water chiller unit assembly. The mechanical refrigeration water chiller unit assembly comprises a shell, a mechanical refrigeration water chiller unit, and a heat dissipation device. The mechanical refrigeration water chiller unit is arranged in the shell and comprises a condenser and an evaporator. The condenser is connected to the evaporative cooling water chiller unit assembly through the first circulating pipeline, the heat dissipation device is arranged in the shell and can exchange heat with the air in the shell, and the heat dissipation device is connected to the evaporator through the second circulating pipeline.

[0008] The integrated cold station provided by the present application uses the cold water generated by the mechanical refrigeration water chiller unit as a heat sink to dissipate heat inside the shell, realizes multi-stage utilization of energy, and at the same time reduces the temperature inside the shell, which is conducive to the normal operation of the devices inside the shell and ensures the safety of the cold station.

[0009] In addition, the heat dissipation device is integrated in the shell, which is conducive to improving the space utilization rate inside the cold station and saving the occupied space.

[0010] Therefore, the integrated cold station solves the problem of high internal temperature of the integrated cold station in the related art, thereby affecting the safe operation of the equipment.

[0011] Further, the mechanical refrigeration water chiller assembly further comprises a temperature detector and a controller.

[0012] Further, the heat dissipation device comprises a fan coil.

[0013] Further, the mechanical refrigeration water chiller assembly further comprises a smoke detector, a gas extinguishing device and a controller.

[0014] Further, the gas extinguishing device comprises a signal feedback element, a gas storage tank, a nozzle and a driver.

[0015] Further, the housing comprises two opposite side walls, the heat dissipation device is arranged on one of the two side walls, the gas extinguishing device is arranged on the other of the two side walls, and the controller is arranged on the side wall on which the heat dissipation device is arranged.

[0016] Further, the mechanical refrigeration water chiller assembly further comprises a third circulating pipeline and a fourth circulating pipeline, and further comprises a plate heat exchanger arranged in the housing.

[0017] Further, the evaporative cooling water chiller assembly comprises a direct evaporative cooling section, a fifth circulating pipeline and an indirect evaporative cooling section.

[0018] The application further provides a control method of the integrated cold station, and the method comprises:

[0019] obtaining the temperature in the integrated cold station;

[0020] if the temperature is greater than or equal to the temperature threshold, turning on the heat dissipation device;

[0021] The temperature threshold is greater than 0.

[0022] The application further provides a control method of the integrated cold station, and the method comprises the following steps:

[0023] acquiring the smoke concentration in the integrated cold station;

[0024] if the smoke concentration is greater than or equal to the concentration threshold, turning on the gas extinguishing device;

[0025] The concentration threshold is greater than 0. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure schematic diagram of the integrated cold station provided by the embodiment of the application;

[0027] Figure 2 The structure schematic diagram of the gas extinguishing device provided by the embodiment of the application;

[0028] Figure 3 One of the flowcharts of the control method of the integrated cold station provided by the embodiment of the application;

[0029] Figure 4 The second flowchart of the control method of the integrated cold station provided by the embodiment of the application;

[0030] Figure 5 The third flowchart of the control method of the integrated cold station provided by the embodiment of the application.

[0031] Reference signs: 1-cold station;

[0032] 10-evaporative cooling chiller assembly; 11-direct evaporative cooling section; 111-direct section exhaust fan, 112-first spraying device; 113- packed cooling tower; 114-direct section water tank; 12-indirect evaporative cooling section; 121-indirect section exhaust fan; 122-second spraying device; 123-tube indirect evaporative cooler; 124-indirect section water tank; 131-indirect section circulating water pipe; C-circulating pump; 14-air inlet;

[0033] 20-mechanical refrigeration chiller assembly; 21-housing; 22-mechanical refrigeration chiller;

[0034] 221-condenser; 2211-condenser side water outlet pipe; 2212-condenser side water return pipe; a-first valve; 222-evaporator; 2221-evaporator side water outlet pipe; c-first check valve; 2222-evaporator side water return pipe; b-second valve;

[0035] 23 - heat dissipating device; 24 - temperature detector; 25 - control cabinet; 26 - smoke detector;

[0036] 27 - gas extinguishing device; 271 - signal feedback element; 272 - gas storage tank; 273 - nozzle; 274 - driver;

[0037] 28 - plate heat exchanger; 281 - first water outlet pipe on the plate exchange side; 282 - first water return pipe on the plate exchange side; d - third valve; 283 - second water outlet pipe on the plate exchange side; f - third check valve; 284 - second water return pipe on the plate exchange side; e - second check valve;

[0038] 31 - first water outlet pipe; A - first pumping device; 32 - first water return pipe;

[0039] 41 - second water outlet pipe; 42 - second water return pipe; B - second pumping device;

[0040] 51 - user water supply pipe; 52 - user water return pipe. DETAILED DESCRIPTION

[0041] The embodiments of the present application will be described in detail below with reference to the drawings.

[0042] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0043] The terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0044] In the description of the present application, it needs to be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] ReferenceFigure 1 The embodiment of the present application provides an integrated cold station 1, which comprises an evaporative cooling water chiller assembly 10, a first circulating pipeline, a second circulating pipeline and a mechanical refrigeration water chiller assembly 20. The mechanical refrigeration water chiller assembly 20 comprises a shell 21, a mechanical refrigeration water chiller 22 and a heat dissipation device 23.

[0046] It can be understood that the shell 21 of the mechanical refrigeration water chiller assembly 20 is part of the total shell of the cold station 1.

[0047] The mechanical refrigeration water chiller 22 is arranged in the shell 21 and comprises a condenser 221 and an evaporator 222. The condenser 221 is connected with the evaporative cooling water chiller assembly 10 through the first circulating pipeline. The first circulating pipeline comprises a first water outlet pipe 31, a condenser side water return pipe 2212, a first water return pipe 32, a condenser side water outlet pipe 2211, a first pumping device A arranged on the first water outlet pipe 31 and a first valve a arranged on the condenser side water return pipe 2212, wherein the first water outlet pipe 31 is connected with the condenser side water return pipe 2212, and the condenser side water outlet pipe 2211 is connected with the first water return pipe 32.

[0048] When the first pumping device A and the first valve a are opened, the cold water in the evaporative cooling water chiller assembly 10 is pumped by the first pumping device A to the condenser side water return pipe 2212 through the first water outlet pipe 31, and is finally sent to the condenser 221. After absorbing the condensation heat, the cold water flows to the evaporative cooling water chiller assembly 10 again through the condenser side water outlet pipe 2211 and the first water return pipe 32. The cooled cold water is pumped by the first pumping device A to the condenser side water return pipe 2212 through the first water outlet pipe 31, and is finally sent to the condenser 221. The cold water is circulated in this way, forming a loop.

[0049] The heat dissipation device 23 is arranged in the shell 21 and can exchange heat with the air in the shell 21. The heat dissipation device 23 is connected with the evaporator 222 through the second circulating pipeline. The second circulating pipeline comprises a second water outlet pipe 41, a second water return pipe 42, an evaporator side water outlet pipe 2221, an evaporator side water return pipe 2222, a second valve b arranged on the evaporator side water return pipe 2222, a first check valve c arranged on the evaporator side water outlet pipe 2221 and a second pumping device B arranged on the second water return pipe 42, wherein the evaporator side water outlet pipe 2221 is connected with the second water return pipe 42, and the evaporator side water return pipe 2222 is connected with the second water outlet pipe 41.

[0050] The second valve b, the first check valve c and the second pumping device B are opened, the circulating water in the heat dissipation device 23 enters the evaporator 222 through the second water outlet pipe 41 and the evaporator side water return pipe 2222, the cooled water is pumped to the heat dissipation device 23 through the evaporator side water outlet pipe 2221 and the second water return pipe 42 by the second pumping device B, so that the heat dissipation device 23 can exchange heat with the air in the shell 21, and the circulating water in the heat dissipation device 23 exchanges heat again, enters the evaporator 222 through the second water outlet pipe 41 and the evaporator side water return pipe 2222, and forms a loop.

[0051] Of course, the mechanical refrigeration chiller 22 also cools the data center, and the integrated cold station 1 further comprises a first user circulating pipeline, which comprises a user water supply pipe 51, a user water return pipe 52, the evaporator side water outlet pipe 2221, the evaporator side water return pipe 2222, the second valve b arranged on the evaporator side water return pipe 2222 and the first check valve c arranged on the evaporator side water outlet pipe 2221.

[0052] In this way, the circulating water in the heat dissipation device 23 and the high-temperature water in the user water return pipe 52 are mixed and then enter the mechanical refrigeration chiller 22 through the evaporator side water return pipe 2222 for cooling, the cooled water flows to the end of the evaporator side water outlet pipe 2221 and is divided into two paths, one path is pumped to the heat dissipation device 23 by the second pumping device B through the second water return pipe 42, and the other path is sent to the user through the user water supply pipe 51, and the loop is formed.

[0053] The integrated cold station 1 provided by the application can realize multi-stage utilization of energy, reduce the temperature in the shell 21, facilitate normal operation of equipment in the shell 21, improve refrigeration efficiency and ensure safety of the cold station 1.

[0054] In addition, the heat dissipation device 23 is integrated in the shell 21, which facilitates improvement of space utilization in the cold station 1 and saving of land occupation.

[0055] Therefore, the integrated cold station 1 provided by the application solves the problem of high temperature in the integrated cold station 1 in the related art and affects safe operation of equipment.

[0056] Exemplarily, the first valve a and the second valve b can be stop valves, butterfly valves, regulating valves and the like, which are arranged as required, and the embodiment is not limited in this regard.

[0057] Exemplarily, the first check valve c can be a one-way check valve, a ball check valve, a swing check valve, etc., and is arranged as required, and the present embodiment does not make specific limitation thereto.

[0058] Exemplarily, the first pumping device A and the second pumping device B can be electric pumps, pneumatic pumps, etc., and are arranged as required, and the present embodiment does not make specific limitation thereto.

[0059] Exemplarily, the heat dissipation device 23 can be a heat exchanger, a heat sink, a heat block, etc., and can all achieve heat dissipation through water cooling circulation.

[0060] Of course, the heat dissipation device 23 can also be a fan coil, which can be a water-cooled fan coil, and the coil inside the fan coil achieves heat dissipation through cold water circulation.

[0061] In some embodiments, the mechanical refrigeration water chiller assembly 20 further comprises a controller. A control cabinet 25 is arranged in the shell 21, and the controller is usually installed in the control cabinet 25. The controller needs to be connected with electrical elements such as relays, circuit breakers, contactors, etc. in the control cabinet 25 to realize the control and monitoring of the equipment inside the shell 21. The control cabinet 25 comprises power supply, input / output module, communication module and other supporting equipment required by the controller to provide a good working environment and electrical connection conditions for the controller.

[0062] The mechanical refrigeration water chiller assembly 20 further comprises a temperature detector 24 for detecting the temperature inside the shell 21. The controller is connected with the temperature detector 24 and the heat dissipation device 23 respectively, and is configured to start the heat dissipation device 23 according to the temperature.

[0063] When the temperature reaches the preset temperature, it indicates that the temperature inside the shell 21 is at a high temperature. If the temperature inside the shell 21 is always at a high temperature, it will affect the normal operation of the equipment inside the shell 21 and reduce the refrigeration efficiency of the cold station 1, and even threaten the safety of the cold station 1.

[0064] By arranging the temperature detector 24, the temperature change inside the shell 21 can be monitored in real time. When the temperature reaches the preset temperature, the controller controls the heat dissipation device 23 to start, and cools the inside of the shell 21 in time to ensure the normal operation of the equipment inside the shell 21 and the safety of the cold station 1.

[0065] Exemplarily, the temperature detector 24 can be a temperature sensor, an infrared thermometer, etc.

[0066] In some embodiments, the shell 21 comprises two opposite side walls, and the heat dissipation device 23 is arranged on one of the two side walls, and the controller is arranged on the side wall where the heat dissipation device 23 is arranged, i.e. the control cabinet 25 and the heat dissipation device 23 are arranged on the same side wall.

[0067] The electrical elements in the control cabinet 25 generally have a working temperature range. If the temperature inside the control cabinet 25 is too high, the heat dissipation of the elements inside the control cabinet 25 can be affected, and even overheating can occur, which can cause a fire. By arranging the control cabinet 25 and the heat dissipation device 23 on the same side and arranging the heat dissipation device 23 above the control cabinet 25, the heat dissipation efficiency of the other devices inside the shell 21 can be ensured, and the heat dissipation device 23 can exchange heat with the air around the control cabinet 25 in time, thereby ensuring the heat dissipation efficiency of the control cabinet 25 and improving the safety of the cold station 1.

[0068] It can be understood that the arrangement position of the heat dissipation device 23 can be arranged as needed, and the embodiment does not make specific limitation thereon. The heat dissipation device 23 can also be arranged near the mechanical refrigeration water chiller assembly 22, as long as the heat dissipation device 23 can dissipate heat for the devices inside the shell 21 to ensure the normal operation of the devices inside the shell 21.

[0069] In some embodiments, the mechanical refrigeration water chiller assembly 20 further comprises a smoke detector 26 and a gas extinguishing device 27. The smoke detector 26 is used to detect the smoke concentration in the shell 21, and the controller is connected with the smoke detector 26 and the gas extinguishing device 27 respectively. The controller is further configured to: turn on the gas extinguishing device 27 according to the smoke concentration.

[0070] When the temperature inside the shell 21 is abnormally high, or when a fault occurs in the circuit inside the shell 21, a fire can occur. By arranging the temperature detector 24 and the smoke detector 26, the temperature and the smoke concentration inside the shell 21 can be monitored in real time. When the temperature reaches a certain temperature or the smoke concentration reaches a certain concentration, the controller controls the gas extinguishing device 27 to be turned on to extinguish the smoke and prevent a fire from occurring.

[0071] For example, the smoke detector 26 can be a photoelectric smoke detector, an ionic smoke detector, a photoresistor smoke detector, etc.

[0072] On this basis, by arranging the temperature detector 24 and the smoke detector 26, it can be monitored in real time whether there is a safety hazard inside the cold station 1, so as to ensure the safe and stable operation of the overall device.

[0073] In some embodiments, the gas extinguishing device 27 is arranged on the other one of the two side walls. In this way, the heat dissipation device 23 and the gas extinguishing device 27 do not affect each other, and the space inside the shell 21 can be fully utilized to improve the space utilization rate.

[0074] Reference Figure 2 , and in combination Figure 1In some embodiments, the gas extinguishing device 27 comprises a signal feedback element 271, a gas tank 272, a nozzle 273 and a driver 274. The signal feedback element 271 is connected to the controller and the smoke detector 26 respectively, and is used to receive the smoke concentration measured by the smoke detector 26 and the instruction issued by the controller. The nozzle 273 is connected to the internal space of the gas tank 272 and the internal space of the shell 21. The driver 274 is connected to the signal feedback element 271 and the nozzle 273.

[0075] After receiving the instruction issued by the controller, the signal feedback element 271 controls the driver 274 to drive the nozzle 273 to release the inert gas, thereby achieving fire extinguishing.

[0076] It can be understood that the signal feedback element 271 can also be connected to the temperature detector 24. When the temperature reaches a certain temperature, the signal feedback element 271 controls the driver 274 to drive the nozzle 273 to release the inert gas to prevent fire.

[0077] Using the gas extinguishing device 27 to extinguish fire will not leave any residue, thereby not causing damage to the equipment inside the shell 21.

[0078] Continuing to refer to Figure 1 In some embodiments, the mechanical refrigeration chiller assembly 20 further comprises a third circulation pipeline and a fourth circulation pipeline. The mechanical refrigeration chiller assembly 20 further comprises a plate heat exchanger 28 arranged in the shell 21.

[0079] The plate heat exchanger 28 is connected to the evaporative cooling chiller assembly 10 through the third circulation pipeline. The third circulation pipeline comprises a first water outlet pipe 31, a plate-exchange-side first water return pipe 282, a plate-exchange-side first water outlet pipe 281, a first water return pipe 32, a third valve d arranged on the plate-exchange-side first water return pipe 282, and a first pumping device A arranged on the first water outlet pipe 31. The first water outlet pipe 31 is connected to the plate-exchange-side first water return pipe 282. The plate-exchange-side first water outlet pipe 281 is connected to the first water return pipe 32.

[0080] When the third valve d and the first pumping device A are opened, the cold water in the evaporative cooling chiller assembly 10 is pumped by the first pumping device A through the first water outlet pipe 31 to the plate-exchange-side first water return pipe 282, and finally enters the plate heat exchanger 28 for heat exchange. The water after absorbing heat returns to the evaporative cooling chiller assembly 10 through the plate-exchange-side first water outlet pipe 281 and the first water return pipe 32 for cooling. This cycle is repeated to form a loop.

[0081] The plate heat exchanger 28 is connected with the heat dissipation device 23 through a fourth circulating pipeline, the fourth circulating pipeline comprises a second water outlet pipe 41, a second plate exchange side water return pipe 284, a second plate exchange side water outlet pipe 283, a second water return pipe 42, a second check valve e arranged on the second plate exchange side water return pipe 284, a third check valve f arranged on the second plate exchange side water outlet pipe 283 and a second pumping device B arranged on the second water return pipe 42, wherein the second water outlet pipe 41 is connected with the second plate exchange side water return pipe 284, and the second plate exchange side water outlet pipe 283 is connected with the second water return pipe 42.

[0082] The second check valve e, the third check valve f and the second pumping device B are opened, the circulating water in the heat dissipation device 23 enters the plate heat exchanger 28 through the second water outlet pipe 41 and the second plate exchange side water return pipe 284 to exchange heat, and the cooled water is pumped to the heat dissipation device 23 through the second plate exchange side water outlet pipe 283 and the second water return pipe 42 by the second pumping device B, so as to form a loop.

[0083] The plate heat exchanger 28 also supplies cold to the data center, and the integrated cold station 1 further comprises a second user circulating pipeline, the second user circulating pipeline comprises a user water supply pipe 51, a user water return pipe 52, the second plate exchange side water return pipe 284 and the second plate exchange side water outlet pipe 283, and the second check valve e arranged on the second plate exchange side water return pipe 284 and the third check valve f arranged on the second plate exchange side water outlet pipe 283, wherein the second plate exchange side water outlet pipe 283 is connected with the user water supply pipe 51, and the user water return pipe 52 is connected with the second plate exchange side water return pipe 284.

[0084] In this way, the circulating water in the heat dissipation device 23 and the high-temperature water in the user water return pipe 52 are combined and then enter the plate heat exchanger 28 through the second plate exchange side water return pipe 284 to be cooled, and the cooled water flows to the end of the second plate exchange side water outlet pipe 283 and is divided into two paths, one of which is pumped to the heat dissipation device 23 through the second water return pipe 42 by the second pumping device B, and the other of which is sent to the user through the user water supply pipe 51, so as to form a loop.

[0085] The integrated cold station 1 provided by the application realizes multi-stage utilization of energy by arranging the heat dissipation device 23 in the shell 21 and using the cold water generated by the plate heat exchanger 28 as a cold source to dissipate heat in the shell 21, reduces the temperature in the shell 21, is beneficial to the normal operation of the equipment in the shell 21, improves the refrigeration efficiency and ensures the safety of the cold station 1.

[0086] Exemplarily, the third valve d can be a stop valve, a butterfly valve, a regulating valve or the like, which is arranged as required, and the embodiment is not limited in this regard.

[0087] Exemplarily, the second check valve e and the third check valve f can be one-way check valves, ball check valves, swing check valves, etc., which are arranged as required, and the present embodiment does not make specific limitation thereto.

[0088] Exemplarily, the circulating pump C can be an electric circulating pump, a diesel circulating pump, etc., which is arranged as required, and the present embodiment does not make specific limitation thereto.

[0089] With continued reference to Figure 1 In some embodiments, the evaporative cooling chiller assembly 10 comprises a direct evaporative cooling section 11, a fifth circulating pipeline and an indirect evaporative cooling section 12.

[0090] The direct evaporative cooling section 11 comprises, from top to bottom, a direct section exhaust fan 111, a first spraying device 112, a packed cooling tower 113 and a direct section water tank 114, wherein the direct section water tank 114 is connected with the mechanical refrigeration chiller assembly 20 through a first circulating pipeline.

[0091] The indirect evaporative cooling section 12 is arranged on opposite sides of the direct evaporative cooling section 11, and comprises, from top to bottom, an indirect section exhaust fan 121, a second spraying device 122, a tubular indirect evaporative cooler 123 and an indirect section water tank 124, wherein the indirect section water tank 124 is connected with the second spraying device 122 through a fifth circulating pipeline, and the air inlet 14 is arranged on the part of the integrated cold station 1 between the second spraying device 122 and the indirect section water tank 124. The fifth circulating pipeline comprises an indirect section circulating water pipe 131 and a circulating pump C arranged on the indirect section circulating water pipe 131.

[0092] The working principle of the evaporative cooling chiller assembly 10 is as follows: the air outside the cold station 1 enters the air inlet 14 and enters the inside and outside of the tubular indirect evaporative cooler 123, respectively. The air in the inside of the tubular indirect evaporative cooler 123 exchanges heat and moisture with the water sprayed by the second spraying device 122, thereby taking away the heat of the air outside the tubular indirect evaporative cooler 123, and then the air is exhausted by the indirect section exhaust fan 121. The cold air outside the tubular indirect evaporative cooler 123 exchanges heat and moisture with the water sprayed by the first spraying device 112 through the packed cooling tower 113 of the direct evaporative cooling section 11, thereby taking away the heat in the water, and then the air is exhausted by the direct section exhaust fan 111. The cooled water falls into the direct section water tank 114, and then exchanges heat with the mechanical refrigeration chiller assembly 20 through the first circulating pipeline.

[0093] The fifth circulating pipeline is arranged to send the water in the indirect section water tank 124 into the second spraying device 122 through the indirect section circulating water pipe 131 under the action of the circulating pump C, and then the water falls into the indirect section water tank 124 after being sprayed into the tubular indirect evaporative cooler 123, so as to form a loop. The structure is simple and can realize water circulation.

[0094] By setting the tubular evaporative cooler, the inside of the cooler can be effectively prevented from scaling, the tube wall is fully covered by the gravity of the water flow alone, so that the later operation and maintenance time and frequency are reduced.

[0095] The integrated cold station can be fully utilized by adopting the indirect evaporative cooling unit, so that the energy consumption of the data center is greatly reduced, the cold station is integrated, the land occupation of the cold station is further compressed, the factory is prefabricated and assembled on site, and the delivery efficiency is improved.

[0096] In summary, the operation method of the integrated cold station mainly comprises:

[0097] (1) In the summer high temperature season, the first valve a and the second valve b are opened, the third valve d is closed, the mechanical refrigeration water chiller 22 is operated, and the plate heat exchanger 28 is not operated.

[0098] The water in the direct section water tank 114 is pumped to the condenser side return water pipe 2212 through the first water outlet pipe 31 under the action of the first pumping device A, and finally enters the mechanical refrigeration water chiller 22, absorbs the condensation heat, and then enters the first spraying device 112 for spraying through the condenser side water outlet pipe 2211 and the first return water pipe 32, and then falls into the direct section water tank 114;

[0099] The circulating water in the heat dissipation device 23 and the high-temperature water in the user return water pipe 52 are combined and then enter the mechanical refrigeration water chiller 22 for cooling through the evaporator side return water pipe 2222, and the cooled water flows to the end of the evaporator side water outlet pipe 2221 and is divided into two paths, one path is pumped to the heat dissipation device 23 through the second return water pipe 42 by the second pumping device B, and the other path is sent to the user through the user water supply pipe 51, so as to form a loop.

[0100] (2) In winter and transition season, the third valve d is opened, the first valve a and the second valve b are closed, the plate heat exchanger 28 is operated, and the mechanical refrigeration water chiller 22 is not operated.

[0101] The water in the direct section water tank 114 is pumped to the plate heat exchanger side first return water pipe 282 through the first water outlet pipe 31 under the action of the first pumping device A, and finally enters the plate heat exchanger 28 for heat exchange, absorbs the heat from the circulating water in the heat dissipation device 23 and the high-temperature water in the user return water pipe 52 combined together through the plate heat exchanger side second return water pipe 284 into the plate heat exchanger 28, and then is sent to the first return water pipe 32 through the plate heat exchanger side first water outlet pipe 281, and then is sprayed to the direct section water tank 114 by the first spraying device 112;

[0102] The water cooled in the plate heat exchanger 28 flows to the end of the second water outlet pipe 283 and is divided into two paths, one of which is pumped to the heat dissipating device 23 by the second pumping device B through the second return water pipe 42, and the other of which is supplied to the user through the user water supply pipe 51, so as to form a loop.

[0103] It can be understood that in winter and transition seasons, the temperature inside the cold station 1 is low, and the heat dissipating device 23 usually does not need to be additionally started to dissipate heat, but if the temperature detected by the temperature detector 24 reaches the preset temperature, the heat dissipating device 23 can also work normally to exchange heat with the air inside the shell 21.

[0104] Reference Figure 3 The application also provides a control method of the integrated cold station, and the method comprises the following steps:

[0105] Step S100: acquiring the temperature inside the integrated cold station.

[0106] Step S200: if the temperature is greater than or equal to a first temperature threshold, starting the heat dissipating device.

[0107] The first temperature threshold is greater than 0.

[0108] It can be understood that the first temperature threshold can be a specific value or a temperature range, which can be set as required.

[0109] The application can monitor the temperature change inside the shell 21 in real time, and when the temperature is greater than or equal to the first temperature threshold, the controller controls the heat dissipating device 23 to start, so as to timely cool the inside of the shell 21, thereby ensuring the normal operation of the equipment inside the shell 21 and the safety of the cold station 1.

[0110] Reference Figure 4 The application also provides a control method of the integrated cold station, and the method comprises the following steps:

[0111] Step S300: acquiring the smoke concentration inside the integrated cold station.

[0112] Step S400: if the smoke concentration is greater than or equal to a concentration threshold, starting the gas extinguishing device.

[0113] The concentration threshold is greater than 0.

[0114] It can be understood that the concentration threshold can be a specific value or a concentration range, which can be set as required.

[0115] The application can monitor the smoke concentration inside the shell 21 in real time, and when the smoke concentration is greater than or equal to the concentration threshold, the controller controls the gas extinguishing device 27 to start, so as to extinguish the smoke and prevent fire.

[0116] ReferenceFigure 5 The application further provides a control method of the integrated cold station, and the method comprises:

[0117] Step S500: obtaining the temperature in the integrated cold station.

[0118] Step S600: if the temperature is greater than or equal to the second temperature threshold, turning on the gas extinguishing device.

[0119] The second temperature threshold is greater than the first temperature threshold.

[0120] It can be understood that the second temperature threshold can be a specific value or a temperature range, which can be set according to requirements.

[0121] The application controls the gas extinguishing device 27 to be turned on to release inert gas in the shell 21 to prevent fire from occurring by monitoring the temperature in the shell 21 in real time and controlling the gas extinguishing device 27 to be turned on when the temperature reaches a certain temperature.

[0122] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0123] The above is only a specific implementation of the application, but the protection scope of the application is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the application, which should be covered in the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope of the claims.

Claims

1. An integrated cold station, characterized in that, The integrated cold station comprises: an evaporative cooling water chiller assembly; a first circulation pipeline; a second circulation pipeline; a mechanical refrigeration water chiller assembly comprising: a housing; a mechanical refrigeration water chiller arranged in the housing and comprising a condenser and an evaporator, the condenser being connected to the evaporative cooling water chiller assembly through the first circulation pipeline; a heat dissipation device arranged in the housing and capable of exchanging heat with air in the housing, the heat dissipation device being connected to the evaporator through the second circulation pipeline; a temperature detector for detecting the temperature in the housing; a smoke detector for detecting the smoke concentration in the housing; a gas extinguishing device; a controller connected to the temperature detector, the heat dissipation device, the smoke detector and the gas extinguishing device, the controller being configured to: start the heat dissipation device according to the temperature; and start the gas extinguishing device according to the smoke concentration.

2. The integrated cold station of claim 1, wherein, The heat dissipation device comprises a fan coil.

3. The integrated cold station of claim 1, wherein, The gas extinguishing device comprises: a signal feedback element connected to the controller and the smoke detector; a gas storage tank; a nozzle communicating the internal space of the gas storage tank with the internal space of the housing; a driver connected to the signal feedback element and the nozzle.

4. The integrated cold station of claim 1, wherein, The housing comprises two opposite side walls, the heat dissipation device is arranged on one of the two side walls, and the gas extinguishing device is arranged on the other side wall. The controller is arranged on the side wall where the heat dissipation device is arranged.

5. The integrated cold station of claim 1, wherein, The mechanical refrigeration water chiller assembly further comprises a third circulation pipeline and a fourth circulation pipeline. The mechanical refrigeration water chiller assembly further comprises a plate heat exchanger arranged in the housing. The plate heat exchanger is connected to the evaporative cooling water chiller assembly through the third circulation pipeline, and connected to the heat dissipation device through the fourth circulation pipeline.

6. The integrated cold station of claim 1, wherein, The evaporative cooling water chiller assembly comprises: a direct evaporative cooling section comprising, from top to bottom, a direct section exhaust fan, a first spraying device, a packed cooling tower and a direct section water tank, the direct section water tank being connected to the mechanical refrigeration water chiller assembly through the first circulation pipeline; a fifth circulation pipeline; an indirect evaporative cooling section arranged on opposite sides of the direct evaporative cooling section, the indirect evaporative cooling section comprising, from top to bottom, an indirect section exhaust fan, a second spraying device, a tubular indirect evaporative cooler and an indirect section water tank, the indirect section water tank being connected to the second spraying device through the fifth circulation pipeline, and the integrated cold station being provided with an air inlet between the second spraying device and the indirect section water tank.

7. A control method of an integrated cold station, characterized by, The method is applied to the integrated cold station of claim 1, and the method comprises: obtaining the temperature in the integrated cold station; starting the heat dissipation device if the temperature is greater than or equal to a temperature threshold value; wherein the temperature threshold value is greater than 0.

8. A control method of an integrated cold station, characterized by, The method is applied to the integrated cold station of claim 1, and the method comprises: obtaining the smoke concentration in the integrated cold station; starting the gas extinguishing device if the smoke concentration is greater than or equal to a concentration threshold value; wherein the concentration threshold value is greater than 0.

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