Compact outdoor water-cooling all-in-one machine

Abstract

The invention relates to a compact outdoor water-cooling all-in-one machine which comprises a refrigeration circulation loop, a cooling liquid circulation loop and an electric control module which are integrated into a whole, the refrigeration circulation loop communicates with the cooling liquid circulation loop through an evaporator, and the refrigeration circulation loop is used for actively refrigerating and absorbing heat of the cooling liquid circulation loop. The evaporator and the cooling liquid circulation loop are respectively communicated with corresponding interfaces of to-be-cooled equipment to form a closed cooling system, the refrigeration circulation loop and the cooling liquid circulation loop are respectively and electrically connected with corresponding connecting ends of the electrical control module, and the electrical control module is used for power supply and control protection of the cooling system. The system has the advantages of being small in occupied area, high in system stability, high in environmental adaptability, wide in application range, high in temperature control precision and the like, and the high requirements for the comprehensive aspects of construction cost, integration level, standardization and the like of the water cooling system in the energy storage industry with increasingly intense competition are met.

Description

TECHNICAL FIELD

[0001] The application relates to a compact outdoor water-cooled all-in-one machine and belongs to the technical field of refrigeration equipment. BACKGROUND

[0002] In recent years, with the continuous development of the new energy industry, especially the energy storage industry, and the continuous improvement of battery density, the requirements for the energy storage battery cabin cooling system are greatly improved. The traditional air-cooled system is gradually out of the selection scheme of the cooling system of the energy storage industry due to the defects of large noise, low cooling efficiency, large dust, etc. Instead, the water-cooled system is used.

[0003] The current mainstream water-cooled system scheme is in the form of a water-cooled body plus an air cooler, that is, the water-cooled body is placed in the cabin, and the air cooler is placed outside the cabin. The technical scheme of this structure has the following disadvantages: ① large occupied area, the water-cooled body occupies the area in the energy storage cabin, and the air cooler occupies the area outside the cabin; ② low integration, large construction cost; ③ high operation and maintenance difficulty, since the water-cooled body is in a closed energy storage cabin and the space is compressed, the observation port and the operation and maintenance port for fault handling are limited in space, so that when the cooling system components fail, they cannot be repaired in time, the equipment recovery time is delayed, and great economic losses are caused; ④ low standardization, the water-cooled body of this scheme needs to match the internal design of the energy storage box, and the customization degree is high, the research and development investment and production cost are increased, and the consistency and stability of the product cannot be guaranteed; the temperature control precision is limited, and the stability of the system cannot be guaranteed. SUMMARY

[0004] In view of the problems existing in the current mainstream water-cooled system scheme, the application provides a compact outdoor water-cooled all-in-one machine, which has the characteristics of small occupied layout, high system stability, strong environmental adaptability, wide application range, high temperature control precision, etc., and meets the high requirements of the increasingly competitive energy storage industry on the construction cost, integration, standardization and other comprehensive aspects of the water-cooled system.

[0005] In order to achieve the above purpose, the technical scheme of the application is as follows: a compact outdoor water-cooled all-in-one machine, comprising a refrigeration cycle circuit, a cooling liquid circulation circuit and an electrical control module integrated into one, the refrigeration cycle circuit is in communication with the cooling liquid circulation circuit through an evaporator, and the refrigeration cycle circuit is used for active refrigeration to absorb the heat of the cooling liquid circulation circuit, the evaporator and the cooling liquid circulation circuit are respectively in communication with the corresponding interfaces of the equipment to be cooled, forming a closed cooling system, the refrigeration cycle circuit and the cooling liquid circulation circuit are respectively electrically connected with the corresponding connection ends of the electrical control module, and the electrical control module is used for power supply and control protection of the cooling system.

[0006] In the above technical solution, the outdoor cabinet is further provided, the refrigeration cycle circuit, the cooling liquid cycle circuit and the electrical control module are integrated in the interior of the outdoor cabinet, the refrigeration cycle circuit and the electrical control module are arranged side by side, and the cooling liquid cycle circuit is located below the refrigeration cycle circuit.

[0007] In the above technical solution, the refrigeration cycle circuit comprises a compressor, a condenser, a liquid accumulator and a drying filter, The inlet side of the compressor is connected with the outlet of the evaporator through a first fluorine pipe, the outlet side of the compressor is connected with the inlet of the condenser through a second fluorine pipe, the air outlet of the condenser is connected with the inlet of the liquid accumulator through a third fluorine pipe, the air outlet of the liquid accumulator is connected with the drying filter through a fourth fluorine pipe, and the drying filter is connected with the inlet of the evaporator through a fifth fluorine pipe, The refrigeration cycle circuit further comprises a detection assembly arranged on the pipes and used for detecting the temperature and pressure of cooling air, and the detection assembly is electrically connected with the corresponding connection end of the electrical control module.

[0008] In the above technical solution, the detection assembly comprises a plurality of temperature transmitters and a plurality of pressure transmitters, A low-pressure pressure transmitter and a suction temperature transmitter are arranged on the pipeline of the first fluorine pipe, An exhaust temperature transmitter, a high-pressure pressure sensor, a high-pressure switch and a first check valve are arranged on the pipeline of the second fluorine pipe, A first pressure transmitter is arranged on the pipeline of the third fluorine pipe, and a ring temperature transmitter is further arranged at the air outlet of the condenser, A needle valve is arranged on the pipeline of the fourth fluorine pipe, An electronic expansion valve is arranged on the pipeline of the fifth fluorine pipe, The condenser is integrated with the fan into an integrated structure.

[0009] In the above technical solution, the refrigeration cycle circuit comprises two groups of circuits with the same structure, the two groups of circuits are connected in parallel through the evaporator, one of the two groups of circuits is used as a standby circuit, and the electrical control module is used for switching to access one of the two groups of circuits.

[0010] In the above technical solution, the cooling liquid cycle circuit comprises a main pipeline unit, a liquid supplementing unit, a pressure stabilizing unit and a deionization unit, the liquid supplementing unit, the pressure stabilizing unit and the deionization unit are respectively connected with the corresponding interface pipeline of the main pipeline unit, the main pipeline unit is connected with the cooling liquid inlet of the evaporator, the cooling liquid is cooled through heat exchange, and the cooling liquid outlet of the evaporator and the inlet of the main pipeline unit are respectively connected with the inlet and the outlet of the equipment to be cooled.

[0011] In the above technical solution, the main pipe unit comprises a main water pump, an outlet of the main water pump is connected with a cooling liquid inlet pipe of the evaporator, a second check valve and a pressure gauge are arranged on the pipe, The cooling liquid outlet of the evaporator is connected with an inlet pipe of the equipment to be cooled, a heater, a second pressure transmitter, a first temperature transmitter, a flow transmitter and a first butterfly valve are arranged on the pipe, The inlet of the main water pump is connected with an outlet pipe of the equipment to be cooled, a second butterfly valve, a second temperature transmitter, an electric conductivity transmitter and a third pressure transmitter are arranged on the pipe, The outlet of the main water pump is also connected with one end of a pipe of the liquid supplementing unit through a deionization unit, the other end of the liquid supplementing unit is connected with a pipe communicated between the evaporator and the water pump to be cooled, and the pressure stabilizing unit is connected with a pipe communicated between the main water pump and the equipment to be cooled.

[0012] In the above technical solution, two main water pumps are used, one is used and the other is standby, and the two main water pumps are connected in parallel, and a second check valve is arranged on the outlet of each main water pump.

[0013] In the above technical solution, the liquid supplementing unit comprises a water supplementing pump, a Y-type filter and a water storage tank assembly, The inlet of the water supplementing pump is communicated with the water storage tank assembly through a branch pipe, and the outlet of the water supplementing pump is connected with a corresponding interface pipe of the deionization unit, a Y-type filter and a third check valve are arranged on the pipe, The water storage tank assembly is connected with a corresponding interface pipe of the main pipe unit through a branch pipe, and a pressure relief electromagnetic valve and a first ball valve are arranged on the branch pipe, which are used for pressure relief to ensure the safety of the water storage tank assembly.

[0014] In the above technical solution, the water storage tank assembly comprises a water storage tank, and the water storage tank is connected with a corresponding interface pipe of the main pipe unit through a branch pipe, A liquid level switch is arranged on the tank wall of the water storage tank and close to the bottom position, a liquid level meter is further arranged on the tank wall of the water storage tank, a first exhaust valve is arranged on the top of the water storage tank, and a first liquid discharge valve is arranged on the bottom of the water storage tank.

[0015] In the above technical solution, the pressure stabilizing unit comprises an expansion tank, an outlet of the expansion tank is connected with an inlet pipe of the main water pump of the main pipe unit through a branch pipe, a second exhaust valve and an on-off butterfly valve are arranged on the branch pipe.

[0016] In the above technical solution, two expansion tanks are used, one is used and the other is standby, and the two expansion tanks are connected in parallel through branch pipes.

[0017] In the above technical solution, the deionization unit comprises a deionization tank body, and the outlet of the water supplementing pump of the liquid supplementing unit is connected with a liquid inlet pipe of the deionization tank body, The deionization tank body liquid inlet is also connected to the pipeline between the main pipeline unit and the equipment to be cooled through a branch pipeline, and a one-way valve, a second ball valve and a float flowmeter are arranged on the branch pipeline, The deionization tank body liquid outlet is also connected to the inlet of the main water pump of the main pipeline unit through a branch pipeline, and a precision filter and a third ball valve are arranged on the branch pipeline.

[0018] In the above technical solution, the inside of the deionization tank body is provided with resin, and filter elements are arranged at the interfaces of the deionization tank body for cooling liquid, for filtering impurities and resin particles of the cooling liquid, a third exhaust valve is further arranged at the top of the deionization tank body, and a second liquid discharge valve for discharging resin and cooling liquid is further arranged at the bottom of the deionization tank body.

[0019] In the above technical solution, the inlet and outlet holes of the outdoor cabinet are each provided with a gland for protection, the drain port of the outdoor cabinet is provided with a grating net, and the plurality of side walls of the outdoor cabinet are each provided with an air inlet, and the air inlet is provided with a dustproof net.

[0020] In the above technical solution, the electrical control module includes a power supply module, a control protection unit and a display screen, the power supply module supplies power to the refrigeration circulation loop, the cooling liquid circulation loop, the control protection unit and the display screen, and the refrigeration circulation loop, the cooling liquid circulation loop and the display screen are further electrically connected to the corresponding connection terminals of the control protection unit.

[0021] In the above technical solution, the power supply module includes a strong current power supply module and a weak current power supply module arranged separately, the strong current power supply module is located above the control protection unit, and the weak current power supply module is located below the control protection unit, for weakening the influence of electromagnetic interference on signal acquisition.

[0022] The compact outdoor water cooling all-in-one machine has the following positive effects: after the compact outdoor water cooling all-in-one machine is used, The refrigeration circulation loop is in communication with the cooling liquid circulation loop through an evaporator, and the refrigeration circulation loop is used for active refrigeration to absorb the heat of the cooling liquid circulation loop, The evaporator and the cooling liquid circulation loop are respectively in communication with the corresponding interfaces of the equipment to be cooled, forming a closed cooling system, The refrigeration circulation loop and the cooling liquid circulation loop are respectively electrically connected to the corresponding connection terminals of the electrical control module, and the electrical control module is used for power supply and control protection of the cooling system, The application is a highly integrated structure, and the structure has the following advantages: ①small land occupation: the refrigeration and main circulation system are integrated, so that the construction cost is low; ②convenient operation and maintenance: the cooling system is placed outdoors, so that the limitation of the operation space in the cabin is eliminated; ③high standardization: the cooling system can be designed in a product series according to the heat dissipation power and batch production and supply are realized, so that the research and development investment of the customized cooling system is reduced, and the economic benefit is high.

[0023] Therefore, the application has the characteristics of small land layout, high system stability, strong environmental adaptability, wide application range, high temperature control precision and the like, and meets the high requirements of the increasingly competitive energy storage industry on the construction cost, integration, standardization and the like of the water cooling system. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic diagram of a specific embodiment of the application; Figure 2 is a layout diagram of the compact outdoor water cooling all-in-one machine of the application; Figure 3 is a flowchart of the remote control mode of the application; 1, refrigeration circulation loop, 101, compressor, 102, condenser, 103, liquid accumulator, 104, drying filter, 105, evaporator, 1001, low-pressure pressure transmitter, 1002, suction temperature transmitter, 1003, discharge temperature transmitter, 1004, high-pressure pressure sensor, 1005, high-pressure switch, 1006, first check valve, 1007, first pressure transmitter, 1008, ring temperature transmitter, 1009, needle valve, 1010, electronic expansion valve, 2, cooling liquid circulation loop, 200, main pipeline unit, 201, main water pump, 202, second check valve, 203, pressure gauge, 204, heater, 205, second pressure transmitter, 206, first temperature transmitter, 207, flow transmitter, 208, first butterfly valve, 209, second butterfly valve, 2010, second temperature transmitter, 2011, conductivity transmitter, 2012, third pressure transmitter, 210, liquid supplementing unit, 211, water supplementing pump, 212, Y-type filter, 213, water storage tank assembly, 2131, water storage tank, 2132, liquid level switch, 2133, liquid level meter, 2134, first exhaust valve, 2135, first liquid discharge valve, 214, third check valve, 215, pressure relief electromagnetic valve, 216, first ball valve, 220, pressure stabilizing unit, 221, expansion tank, 222, second exhaust valve, 223, on-off butterfly valve, 230, deionization unit, 231, deionization tank body, 2311, third exhaust valve, 2312, second liquid discharge valve, 232, check valve, 233, second ball valve, 234, float flowmeter, 235, precision filter, 236, third ball valve, 3, electrical control module, 4, outdoor cabinet, Ta, target liquid supply temperature, Tb, actual liquid supply temperature, Tc1, automatic operation mode heater start temperature, Tc2, automatic operation mode heater stop temperature, Td1, self-circulation mode refrigeration start temperature, Td2, self-circulation mode refrigeration stop temperature, Te1, self-circulation mode heater start temperature, Te2, self-circulation mode heater stop temperature, Tf1, heating mode heater start temperature, Tf2, heating mode heater stop temperature, Tg1, dehumidification mode heater start temperature, Tg2, dehumidification mode heater stop temperature. DETAILED DESCRIPTION

[0025] The application is further described in conjunction with the accompanying drawings and examples given below, but is not limited thereto.

[0026] Example 1 As shown in Figure 1 , 2 , a compact outdoor water-cooled all-in-one machine includes a refrigeration cycle circuit 1, a cooling liquid circulation circuit 2 and an electrical control module 3 integrated as one, The refrigeration cycle circuit 1 is in communication with the cooling liquid circulation circuit 2 through an evaporator 105, and the refrigeration cycle circuit 1 is used for active refrigeration to absorb the heat of the cooling liquid circulation circuit 2, The evaporator 105 and the cooling liquid circulation circuit 2 are respectively in communication with corresponding interfaces of the equipment to be cooled, forming a closed cooling system, The refrigeration cycle circuit 1 and the cooling liquid circulation circuit 2 are respectively electrically connected with corresponding connection ends of the electrical control module 3, and the electrical control module 3 is used for power supply and control protection of the cooling system.

[0027] Further, as shown in Figure 2 , in order to further improve the compactness of the structure of the application, make the layout small, and the integration high, it further includes an outdoor cabinet 4, the refrigeration cycle circuit 1, the cooling liquid circulation circuit 2 and the electrical control module 3 are integrated in the interior of the outdoor cabinet 4, the refrigeration cycle circuit 1 and the electrical control module 3 are arranged side by side, and the cooling liquid circulation circuit 2 is located below the refrigeration cycle circuit 1.

[0028] The equipment to be cooled is connected with the corresponding interfaces of the refrigeration cycle circuit 1 and the cooling liquid circulation circuit 2 in the interior of the outdoor cabinet 4 through the in-out line interfaces of the outdoor cabinet 4, forming a closed water cooling system, the form of the in-out line interface can be customized according to the demand of the use scene, and is suitable for various connection interaction forms.

[0029] Further, as shown in Figure 1As shown, in order to construct an active cooling circulation system for the coolant, the cooling circulation loop 1 is used to cool the coolant in the coolant circulation loop 2, thus playing an active cooling role. Specifically, it includes a compressor 101, a condenser 102, a receiver 103, and a dryer filter 104. The compressor 101 has its inlet connected to the outlet of the evaporator 105 via a first refrigerant pipe, and its outlet connected to the inlet of the condenser 102 via a second refrigerant pipe. The outlet of the condenser 102 is connected to the inlet of the receiver 103 via a third refrigerant pipe, and the outlet of the receiver 103 is connected to the dryer filter 104 via a fourth refrigerant pipe. The dryer filter 104 is connected to the inlet of the evaporator 105 via a fifth refrigerant pipe. The refrigeration cycle circuit 1 also includes a detection component installed on the pipeline for detecting the temperature and pressure of the cooling air. The detection component is electrically connected to the corresponding connection terminal of the electrical control module 3.

[0030] Furthermore, such as Figure 1 As shown, in order to obtain the temperature and pressure of each branch in the refrigeration cycle loop in a timely manner and to adjust the cooling demand of the coolant accordingly, the detection component includes multiple temperature transmitters and multiple pressure transmitters. The first fluorine pipeline is equipped with a low-pressure transmitter 1001 and a suction temperature transmitter 1002. The second fluorine pipeline is equipped with an exhaust temperature transmitter 1003, a high-pressure sensor 1004, a high-pressure switch 1005, and a first check valve 1006. A first pressure transmitter 1007 is installed on the third fluorine pipeline, and an ambient temperature transmitter 1008 is also installed at the air outlet of the condenser 102. The fourth fluorine pipeline is equipped with a needle valve 1009. The fifth fluorine pipeline is equipped with an electronic expansion valve 1010. The condenser 102 is a single unit consisting of a heat dissipation core and a fan.

[0031] Furthermore, such as Figure 1 As shown, to prevent a malfunction in the refrigeration cycle loop from causing the entire equipment to malfunction and affecting the cooling effect, the refrigeration cycle loop 1 includes two sets of identical loops connected in parallel via the evaporator 105, forming a standby configuration with one loop in operation and the other on standby. The electrical control module 3 switches between the two sets of loops for use. Each single loop can operate independently; if any single loop fails, the electrical control module 3 automatically switches to the standby loop, improving the reliability of the cooling system.

[0032] Furthermore, such as Figure 1As shown in the figure, in order to output cooling liquid with constant temperature and ensure the cooling performance of the cooling device, the cooling liquid circulation loop 2 comprises a main pipe unit 200, a liquid supplement unit 210, a pressure stabilizing unit 220 and a deionization unit 230, the liquid supplement unit 210, the pressure stabilizing unit 220 and the deionization unit 230 are connected with the corresponding interface pipes of the main pipe unit 200 respectively, the main pipe unit 200 is connected with the cooling liquid inlet of the evaporator 105 to cool the cooling liquid through heat exchange, and the cooling liquid outlet of the evaporator 105 and the inlet of the main pipe unit 200 are communicated with the inlet and the outlet of the device to be cooled respectively. In use, one end of the cooling liquid circulation loop 2 is connected with the refrigeration circulation loop through the evaporator to cool the cooling liquid through heat exchange, and the other end is connected with the device to be cooled to output cooling liquid with constant temperature.

[0033] Further, as shown in the figure, Figure 1 in order to effectively drive the circulation flow of the cooling liquid, the main pipe unit 200 comprises a main water pump 201, the outlet of the main water pump 201 is connected with the cooling liquid inlet pipe of the evaporator 105, a second check valve 202 and a pressure gauge 203 are arranged on the pipe, the cooling liquid outlet of the evaporator 105 is connected with the inlet pipe of the device to be cooled, a heater 204, a second pressure transmitter 205, a first temperature transmitter 206, a flow transmitter 207 and a first butterfly valve 208 are arranged on the pipe, the inlet of the main water pump 201 is connected with the outlet pipe of the device to be cooled, a second butterfly valve 209, a second temperature transmitter 2010, an electric conductivity transmitter 2011 and a third pressure transmitter 2012 are arranged on the pipe, the outlet of the main water pump 201 is further connected with one end of the liquid supplement unit 210 through the deionization unit 230, the other end of the liquid supplement unit 210 is connected with the pipe communicated between the evaporator 105 and the cooling water pump of the device to be cooled, and the pressure stabilizing unit 220 is connected with the pipe communicated between the main water pump 201 and the device to be cooled.

[0034] Further, as shown in the figure, Figure 1 in order to guarantee the normal supply of the cooling liquid of the device to be cooled, the main water pump 201 adopts two pumps and one standby, and the two main water pumps 201 are connected in parallel, and the outlet of each main water pump 201 is provided with a second check valve 202. That is, the main water pump of the present application adopts the parallel connection mode of double pumps and one standby, which is used to drive the circulation flow of the cooling liquid, and the single pump failure can be automatically switched to the standby main pump through the electrical control module 3.

[0035] Further, as shown in the figure, Figure 1As shown, the liquid supplement unit can be used as a liquid injection interface before the cooling system is operated, and can realize online monitoring and automatic liquid supplement when the cooling system is operated, thereby ensuring normal operation of the cooling system. The liquid supplement unit 210 comprises a water supplement pump 211, a Y-type filter 212 and a water storage tank assembly 213. The inlet of the water supplement pump 211 is connected with the water storage tank assembly 213 through a branch pipeline, and the outlet of the water supplement pump 211 is connected with the corresponding interface pipeline of the deionization unit 230, wherein a Y-type filter 212 and a third check valve 214 are arranged on the pipeline. The water storage tank assembly 213 is connected with the corresponding interface pipeline of the main pipeline unit 200 through a branch pipeline, and a pressure relief electromagnetic valve 215 and a first ball valve 216 are arranged on the branch pipeline, so as to ensure the safety of the water storage tank assembly 213.

[0036] Further, as shown in Figure 1 In order to realize the automatic liquid supplement function of the cooling liquid circulation loop 2 and the system pressure protection function, the water storage tank assembly 213 comprises a water storage tank 2131, which is connected with the corresponding interface pipeline of the main pipeline unit 200 through a branch pipeline, A liquid level switch 2132 is arranged on the tank wall of the water storage tank 2131 and close to the bottom position, and a liquid level meter 2133 is also arranged on the tank wall of the water storage tank 2131. A first exhaust valve 2134 is arranged on the top of the water storage tank 2131, and a first liquid discharge valve 2135 is arranged on the bottom of the water storage tank 2131.

[0037] Further, as shown in Figure 1 In order to adjust the system pressure of the cooling liquid circulation loop, reduce the pressure fluctuation of the cooling system and improve the stability of the operation of the cooling system, the pressure stabilizing unit 220 comprises an expansion tank 221, and the outlet of the expansion tank 221 is connected with the inlet pipeline of the main water pump 201 of the main pipeline unit 200 through a branch pipeline, wherein a second exhaust valve 222 and an on-off butterfly valve 223 are arranged on the branch pipeline.

[0038] Further, as shown in Figure 1 The expansion tank 221 adopts two and one standby, and is connected in parallel through a branch pipeline. That is, the expansion tank 221 of the present application adopts one and one standby, and the failure of a single expansion tank does not affect the normal operation of the system.

[0039] Further, as shown in Figure 1 In order to reduce the conductivity of the cooling liquid, prevent the safe operation of the equipment from being affected by the conductivity of the cooling liquid, and meet the demand for high-purity water of the equipment to be cooled, the deionization unit 230 comprises a deionization tank body 231, and the outlet of the water supplement pump 211 of the liquid supplement unit 210 is connected with the liquid inlet pipeline of the deionization tank body 231, The inlet of the deionization tank 231 also accesses the pipeline connected between the main pipeline unit 200 and the equipment to be cooled through a branch pipeline, which is provided with a one-way valve 232, a second ball valve 233 and a float flow meter 234. The outlet of the deionization tank 231 also accesses the inlet of the main water pump 201 of the main pipeline unit 200 through a branch pipeline, which is provided with a precision filter 235 and a third ball valve 236.

[0040] Further, in order to filter impurities and resin particles in the cooling liquid and discharge the resin and cooling liquid in the deionization tank, the inside of the deionization tank 231 is provided with resin, and the interfaces for inlet and outlet of the cooling liquid are provided with filter elements for filtering impurities and resin particles in the cooling liquid. The top of the deionization tank 231 is also provided with a third exhaust valve 2311, and the bottom of the deionization tank 231 is also provided with a second liquid discharge valve 2312 for discharging the resin and cooling liquid.

[0041] Further, the main body of the outdoor cabinet 4 is made of sheet metal and profiled material by welding and assembling, for assembling the integrated refrigeration cycle circuit 1, the cooling liquid circulation circuit 2 and the electrical control module 3. The overall protection level of the cabinet is improved by avoiding structural sharp corners, full-spray of structural parts, selection of rust-proof fasteners, etc., to meet the outdoor use scenario.

[0042] The outdoor cabinet 4 is designed with detachable door plates in the areas of the refrigeration cycle circuit 1, the cooling liquid circulation circuit 2 and the electrical control module 3, to improve the convenience of operation and maintenance.

[0043] The outdoor cabinet 4 is provided with a gland at the inlet and outlet holes, and a grating net at the drain port, and the cabinet body is fully enclosed without large holes, to avoid damage to internal components by outdoor small animals.

[0044] The outdoor cabinet 4 is provided with air inlets on multiple side walls, and the air inlets are provided with dustproof nets, which can be easily detached and cleaned, to reduce the entry of outdoor large particle dust and flocculation into the cabinet while ensuring the designed wind resistance.

[0045] Further, in order to realize automatic electrical control of the refrigeration cycle circuit 1 and the cooling liquid circulation circuit 2, the electrical control module 3 includes a power supply module, a control protection unit and a display screen. The power supply module supplies power to the refrigeration cycle circuit 1, the cooling liquid circulation circuit 2, the control protection unit and the display screen. The refrigeration cycle circuit 1, the cooling liquid circulation circuit 2 and the display screen are also electrically connected to the corresponding connection terminals of the control protection unit.

[0046] The control protection unit comprises a central processor, and a signal acquisition circuit and a signal control output circuit connected with the central processor, signals of temperature, pressure and the like of devices (temperature transmitters, pressure sensors and the like) in the refrigeration cycle loop 1 and the cooling liquid cycle loop 2 are sent to the central processor of the control protection unit through the signal acquisition circuit for internal processing and analysis, and then the signal control output circuit is used to control the operation of the compressor and the like, dynamically adjust the cooling liquid temperature input to the equipment to be cooled, and display information on the display screen.

[0047] Further, the power supply module comprises a strong power supply module and a weak power supply module arranged separately, the strong power supply module is located above the control protection unit, and the weak power supply module is located below the control protection unit, so as to weaken the influence of electromagnetic interference on signal acquisition.

[0048] The control protection unit comprises an on-site control mode and a remote control mode, which can be selected through the display screen. The on-site control mode is used for manually controlling the start and stop of the main water pump, the heater, the condenser, the compressor and the like, so as to facilitate debugging and maintenance; the remote control mode is used for accepting remote control, so as to ensure that the cooling system operates according to the preset working mode.

[0049] The cooling system operating state in the remote control mode comprises an automatic operation mode, a self-circulation mode, a heating mode and a dehumidification mode, the preset mode is used for working, maintaining the water temperature within the preset target, and monitoring and protecting the various operating parameters of the cooling system in real time.

[0050] The working process of the whole cooling system: the cooling liquid cycle loop 2 and the refrigeration cycle loop 1 work independently, and heat is exchanged through the evaporator 105, wherein the cooling liquid cycle loop 2 is in a long-term working state, and the refrigeration cycle loop 1 is adjusted according to the liquid supply temperature of the equipment to be cooled, so that the cooling liquid with the set temperature is output.

[0051] Specifically, the working process of the refrigeration cycle loop 1 is as follows: The compressor 101 of the refrigeration side discharges high-temperature and high-pressure refrigerant gas, enters the air-cooled condenser 102 and exchanges heat with the environment air, so that the refrigerant releases heat and is cooled into low-temperature and high-pressure liquid, enters the electronic expansion valve 1010 through the liquid accumulator 103 and the drying filter 104, is throttled and depressurized, becomes a gas-liquid two-phase mixture, and finally absorbs heat in the evaporator 105 to become low-temperature and low-pressure gas and returns to the compressor 101, forming a reciprocating cycle.

[0052] The working process of the cooling liquid cycle loop 2 is as follows: The main pipeline unit 200: the main water pump 201 drives the cooling liquid to flow into the evaporator 105 first to exchange heat, so that the cooling liquid temperature is reduced, and then flows into the equipment to be cooled and absorbs the heat thereof. If the cooling liquid temperature is increased, it will flow into the main water pump 201 again, and then pass through the evaporator 105 again to exchange heat, so as to reduce the temperature of the cooling liquid; The deionization unit 230: the main pipeline unit 200 is connected to the equipment to be cooled in parallel, and the cooling liquid flows through the deionization tank 231 to remove ions and then flows into the main pipeline unit 200; The pressure stabilizing unit 220: the expansion tank 221 is connected to the main pipeline unit 200, and according to the pressure fluctuation of the system, automatic pressure compensation and pressure relief are performed to ensure the pressure stability of the main pipeline unit 200; The liquid supplementing unit 210: when the main pipeline unit 200 pressure issues a pressure low warning, the water supplementing pump 211 works to draw water from the water storage tank 2131, and then flows through the deionization tank 231 to remove ions and then flows into the main pipeline unit 200.

[0053] Embodiment 2 Embodiment 2 provides a temperature signal acquisition and processing method in a remote control mode based on embodiment 1: applying a wavelet function to the PID control adjustment of the cooling system, so that the stability and precision of the temperature control system are improved.

[0054] The traditional PID temperature adjustment method formula is as follows: , Wherein, u(t) is the temperature signal output by the controller, α is the proportional coefficient, β is the integral coefficient, γ is the differential coefficient, e(t) is the error value, , The set temperature is T, The actual temperature is T.

[0055] Further, the e(t) is decomposed by 4 layers of Db4 wavelet: .

[0056] The sampling frequency is 10HZ; A4 (0-1.25Hz) represents the change of the environment temperature, D2 (1.25-2.5Hz) represents the fluctuation caused by the sudden change of the heat source load in the cooling system; D2 (2.5-5Hz) represents the oscillation of the valve and other parts; D1 (5-10Hz) represents the temperature transmitter noise interference.

[0057] Further, the dynamic adjustment of the PID parameters is realized according to the wavelet coefficients: , , , p, m, 0 are the weight coefficients of the experiment calibration; Energy(D3): D3 layer energy (perturbation intensity); Mean(|A4|): A4 layer mean value (steady-state error trend); Var(D2): D2 layer variance (oscillation suppression); a0: proportional coefficient; b0: integral coefficient; g0: differential coefficient.

[0058] Wavelet threshold denoising: threshold filtering of D1 layer coefficients to avoid frequent start-stop of the compressor: , N is the signal length, is the noise standard deviation of the jth layer coefficient calculated by MAD, is the detail coefficient of D1 (5-10Hz), is the filter coefficient.

[0059] Example 3 As Figure 3 shown, example 3 is based on example 1 and provides an automatic running mode in a remote control mode. Specifically, The cooling liquid circulation loop 2 is normally running, and the refrigeration circulation loop 1 automatically controls the running state of the compressor, the fan of the condenser and the heater in the refrigeration circulation loop 1 according to the target liquid supply temperature Ta and the actual liquid supply temperature Tb to adjust the running state of the compressor, the fan of the condenser and the heater in the refrigeration circulation loop 1, and control the actual liquid supply temperature Tb around the target liquid supply temperature Ta. The steady-state temperature control accuracy is ±1℃.

[0060] If the actual liquid supply temperature Tb is less than or equal to the automatic running mode heater start temperature Tc1, start the heater, and the compressor and the fan of the condenser in the refrigeration circulation loop stop running; If the actual liquid supply temperature Tb is greater than the automatic running mode heater stop temperature Tc2, turn off the heater, and the compressor and the fan of the condenser in the refrigeration circulation loop automatically judge whether to run according to the actual liquid supply temperature Tb. Among them: the target liquid supply temperature Ta, the automatic running mode heater start temperature Tc1, and the automatic running mode heater stop temperature Tc2 are all adjustable.

[0061] Among them, Figure 3 The target liquid supply temperature Ta, the automatic running mode heater start temperature Tc1, the automatic running mode heater stop temperature Tc2, the self-circulation mode refrigeration start temperature Td1, and the self-circulation mode refrigeration stop temperature Td2 in the above table are all adjustable, and the self-circulation mode heater start temperature Te1, the self-circulation mode heater stop temperature Te2, the heating mode heater start temperature Tf1, the heating mode heater stop temperature Tf2, the dehumidification mode heater start temperature Tg1, and the dehumidification mode heater stop temperature Tg2 are all fixed values.

[0062] Embodiment 4 As Figure 3 shown, this embodiment is based on Embodiment 1 and provides a self-circulation mode in remote control mode. Specifically, The cooling liquid circulation loop 2 is normally running, and the refrigeration circulation loop 1 automatically controls the running state of the compressor, the fan of the condenser, and the heater, etc., and controls the actual supply liquid temperature Tb within the allowable supply liquid temperature upper and lower limit values: If the actual supply liquid temperature Tb≥ self-circulation mode refrigeration start temperature Td1, start the compressor and the fan of the condenser in the refrigeration circulation loop 1, and control the actual supply liquid temperature Tb to decrease; If the actual supply liquid temperature Tb< self-circulation mode refrigeration stop temperature Td2, stop the compressor and the fan of the condenser in the refrigeration circulation loop 1 from running, and stop the refrigeration; If the actual supply liquid temperature Tb≤ self-circulation mode heater start temperature Te1, start the heater; If the actual supply liquid temperature Tb> self-circulation mode heater stop temperature Te2, turn off the heater. The target supply liquid temperature Ta, the self-circulation mode refrigeration start temperature Td1, and the self-circulation mode refrigeration stop temperature Td2 are all adjustable.

[0063] Embodiment 5 As Figure 3 shown, this embodiment is based on Embodiment 1 and provides a heating mode in remote control mode. Specifically, The cooling liquid circulation loop 2 is normally running, and the refrigeration circulation loop 1 is stopped.

[0064] If the actual supply liquid temperature Tb≤ heating mode heater start temperature Tf1, start the heater; If the actual supply liquid temperature Tb> heating mode heater stop temperature Tf2, turn off the heater.

[0065] Embodiment 6 As Figure 3 shown, this embodiment is based on Embodiment 1 and provides a dehumidification mode in remote control mode. Specifically, The cooling liquid circulation loop 2 is normally running, and the refrigeration circulation loop 1 is stopped.

[0066] If the actual supply liquid temperature Tb≤ dehumidification mode heater start temperature Tg1, start the heater; If the actual supply liquid temperature Tb> dehumidification mode heater stop temperature Tg2, turn off the heater.

[0067] The structure of the compact outdoor water-cooling integrated machine has the following advantages: ① small floor area: the refrigeration and the main circulation system are integrated, so that the construction cost is low; ② convenient operation and maintenance: since the cooling system is placed outdoors, the limitation of the operation space in the cabin is eliminated; ③ high standardization: the cooling system can be designed in series according to the heat dissipation power and mass production and supply are realized, so that the research and development investment of the customized cooling system is reduced, and the economic benefit is high.

[0068] Therefore, the application has the characteristics of small floor layout, high system stability, strong environmental adaptability, wide application range, high temperature control precision and the like, and meets the high requirements of the increasingly competitive energy storage industry on the construction cost, integration degree, standardization and the like of the water-cooling system.

[0069] Based on the above ideal embodiments of the application, the related personnel can make various changes and modifications without deviating from the technical idea of the application. The technical scope of the application is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A compact outdoor water-cooled integrated unit, characterized in that: It includes an integrated refrigeration circulation loop (1), a coolant circulation loop (2), and an electrical control module (3). The refrigeration cycle (1) is connected to the coolant cycle (2) through the evaporator (105), and the refrigeration cycle (1) is used for active refrigeration, absorbing heat from the coolant cycle (2). The evaporator (105) and the coolant circulation loop (2) are respectively connected to the corresponding interfaces of the equipment to be cooled, forming a closed cooling system. The refrigeration circulation loop (1) and the coolant circulation loop (2) are electrically connected to the corresponding connection terminals of the electrical control module (3), and the electrical control module (3) is used for power supply and control protection of the cooling system. The coolant circulation loop (2) includes a main pipeline unit (200), a replenishment unit (210), a pressure stabilizing unit (220), and a deionizing unit (230). The replenishment unit (210), the pressure stabilizing unit (220), and the deionizing unit (230) are respectively connected to the corresponding interface pipelines of the main pipeline unit (200). The main pipeline unit (200) is connected to the coolant inlet of the evaporator (105) and cools the coolant through heat exchange. The coolant outlet of the evaporator (105) and the inlet of the main pipeline unit (200) are respectively connected to the inlet and outlet of the equipment to be cooled.

2. The compact outdoor water-cooled integrated unit according to claim 1, characterized in that: It also includes an outdoor cabinet (4), in which the cooling circulation loop (1), the coolant circulation loop (2) and the electrical control module (3) are all integrated inside the outdoor cabinet (4). The cooling circulation loop (1) and the electrical control module (3) are arranged side by side, and the coolant circulation loop (2) is located below the cooling circulation loop (1).

3. The compact outdoor water-cooled integrated unit according to claim 1, characterized in that: The refrigeration cycle (1) includes a compressor (101), a condenser (102), a liquid receiver (103), and a dryer filter (104). The compressor (101) is connected to the outlet of the evaporator (105) via a first refrigerant pipe, and its outlet is connected to the inlet of the condenser (102) via a second refrigerant pipe. The outlet of the condenser (102) is connected to the inlet of the receiver (103) via a third refrigerant pipe, and the outlet of the receiver (103) is connected to the dryer filter (104) via a fourth refrigerant pipe. The dryer filter (104) is connected to the inlet of the evaporator (105) via a fifth refrigerant pipe. The refrigeration cycle circuit (1) also includes a detection component installed on the pipeline for detecting the temperature and pressure of the cooling air. The detection component is electrically connected to the corresponding connection terminal of the electrical control module (3).

4. The compact outdoor water-cooled integrated unit according to claim 3, characterized in that: The detection assembly includes multiple temperature transmitters and multiple pressure transmitters. The first fluorine pipeline is equipped with a low-pressure transmitter (1001) and a suction temperature transmitter (1002). The second fluorine pipeline is equipped with an exhaust temperature transmitter (1003), a high pressure sensor (1004), a high pressure switch (1005), and a first check valve (1006). The third fluorine pipeline is equipped with a first pressure transmitter (1007), and the air outlet of the condenser (102) is also equipped with an ambient temperature transmitter (1008). The fourth fluorine pipeline is equipped with a needle valve (1009). The fifth fluorine pipeline is equipped with an electronic expansion valve (1010). The condenser (102) is an integrated structure consisting of a heat dissipation core and a fan.

5. The compact outdoor water-cooled integrated unit according to claim 1, characterized in that: The refrigeration cycle circuit (1) includes two sets of circuits with the same structure, and the two sets of circuits are connected in parallel through the evaporator (105) to form a one-for-one standby configuration. The electrical control module (3) switches to one set of circuits for use.

6. The compact outdoor water-cooled integrated unit according to claim 1, characterized in that: The main pipeline unit (200) includes a main water pump (201), the outlet of which is connected to the coolant inlet pipeline of the evaporator (105), and the pipeline is equipped with a second check valve (202) and a pressure gauge (203). The coolant outlet of the evaporator (105) is connected to the inlet pipe of the equipment to be cooled. The pipe is equipped with a heater (204), a second pressure transmitter (205), a first temperature transmitter (206), a flow transmitter (207), and a first butterfly valve (208). The inlet of the main water pump (201) is connected to the outlet pipeline of the equipment to be cooled. The pipeline is equipped with a second butterfly valve (209), a second temperature transmitter (2010), a conductivity transmitter (2011), and a third pressure transmitter (2012). The outlet of the main water pump (201) is also connected to one end of the replenishment unit (210) through the deionization unit (230). The other end of the replenishment unit (210) is connected to the pipeline connecting the evaporator (105) and the water pump to be cooled. The pressure stabilizing unit (220) is connected to the pipeline connecting the main water pump (201) and the equipment to be cooled.

7. The compact outdoor water-cooled integrated unit according to claim 6, characterized in that: The main water pump (201) consists of two units, one in use and one on standby, and the two main water pumps (201) are connected in parallel. Each main water pump (201) is equipped with a second check valve (202) at its outlet.

8. The compact outdoor water-cooled integrated unit according to claim 1, characterized in that: The replenishment unit (210) includes a water replenishment pump (211), a Y-type filter (212), and a water storage tank assembly (213). The inlet of the water replenishment pump (211) is connected to the water storage tank assembly (213) through a branch pipeline, and the outlet of the water replenishment pump (211) is connected to the corresponding interface pipeline of the deionization unit (230). A Y-type filter (212) and a third check valve (214) are provided on the pipeline. The water storage tank assembly (213) is connected to the corresponding interface pipeline of the main pipeline unit (200) through a branch pipeline, and the branch pipeline is equipped with a pressure relief solenoid valve (215) and a first ball valve (216) for pressure relief to ensure the safety of the water storage tank assembly (213).

9. The compact outdoor water-cooled integrated unit according to claim 8, characterized in that: The water storage tank assembly (213) includes a water storage tank (2131), which is connected to the corresponding interface pipe of the main pipeline unit (200) via a branch pipeline. A level switch (2132) is provided on the tank wall of the water storage tank (2131) near the bottom. A level gauge (2133) is also provided on the tank wall of the water storage tank (2131). A first vent valve (2134) is provided on the top of the water storage tank (2131), and a first drain valve (2135) is provided on the bottom of the water storage tank (2131).

10. The compact outdoor water-cooled integrated unit according to claim 1, characterized in that: The pressure stabilizing unit (220) includes an expansion tank (221). The outlet of the expansion tank (221) is connected to the inlet pipe of the main water pump (201) of the main pipeline unit (200) through a branch pipe. The branch pipe is equipped with a second exhaust valve (222) and a switch butterfly valve (223).

11. The compact outdoor water-cooled integrated unit according to claim 10, characterized in that: The expansion tank (221) consists of two tanks, one in use and one on standby, and is connected in parallel via branch pipelines.

12. The compact outdoor water-cooled integrated unit according to claim 1, characterized in that: The deionization unit (230) includes a deionization tank (231), and the outlet of the water replenishment pump (211) of the replenishment unit (210) is connected to the inlet pipe of the deionization tank (231). The inlet of the deion tank (231) is also connected to the pipeline connecting the main pipeline unit (200) and the equipment to be cooled via a branch pipeline. The branch pipeline is equipped with a check valve (232), a second ball valve (233) and a float flow meter (234). The outlet of the deion tank (231) is also connected to the inlet of the main water pump (201) of the main pipeline unit (200) through a branch pipeline. The branch pipeline is equipped with a precision filter (235) and a third ball valve (236).

13. The compact outdoor water-cooled integrated unit according to claim 12, characterized in that: The deion tank (231) is equipped with resin inside and has filter elements at its inlet and outlet coolant interfaces for filtering coolant impurities and resin particles. The top of the deion tank (231) is also equipped with a third exhaust valve (2311), and the bottom of the deion tank (231) is also equipped with a second drain valve (2312) for discharging resin and coolant.

14. The compact outdoor water-cooled integrated unit according to claim 2, characterized in that: The outdoor cabinet (4) is equipped with a protective gland at the cable entry and exit holes, and a grid mesh is provided at the drain outlet of the outdoor cabinet (4). Multiple side walls of the outdoor cabinet (4) are equipped with air inlets, and dustproof mesh is provided at the air inlets.

15. The compact outdoor water-cooled integrated unit according to claim 1, characterized in that: The electrical control module (3) includes a power supply module, a control protection unit and a display screen. The power supply module supplies power to the refrigeration cycle circuit (1), the coolant cycle circuit (2), the control protection unit and the display screen. The refrigeration cycle circuit (1), the coolant cycle circuit (2) and the display screen are also electrically connected to the corresponding connection terminals of the control protection unit.

16. The compact outdoor water-cooled integrated unit according to claim 15, characterized in that: The power supply module includes a high-voltage power supply module and a low-voltage power supply module arranged separately. The high-voltage power supply module is located above the control and protection unit, and the low-voltage power supply module is located below the control and protection unit, which is used to reduce the impact of electromagnetic interference on signal acquisition.

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