Water-cooling and liquid-cooling unit for marine battery compartment

Abstract

The utility model relates to a marine battery compartment water-cooling liquid-cooling unit, the outlet air of a compressor is connected back to the inlet air of the compressor through a water-cooling heat exchanger and a plate heat exchanger, the plate heat exchanger is connected with a battery compartment through a refrigerant inlet pipe and a refrigerant outlet pipe respectively, and the refrigerant inlet pipe is divided into three paths after sequentially passing through an inlet water temperature sensor, an inlet water filter and an inlet water pressure sensor from the battery compartment; the first path is connected with an expansion tank, the expansion tank is connected with a water replenishing pipeline with a water replenishing control valve group, the second path and the third path are respectively a water inlet pump and a water inlet control valve group which are connected in series, and the second path and the third path are combined and then are connected with another heat stroke inlet of the plate heat exchanger through a heater and an exhaust valve in sequence; another hot stroke outlet of the plate heat exchanger is connected with the battery cabin through the safety overflow valve, the outlet water temperature sensor and the flow switch in sequence, and the safety overflow valve is connected with the refrigerant water inlet pipe between the inlet water temperature sensor and the inlet water filter in an overflow mode. The unit is simple in structure and can meet the heating and refrigerating requirements of the marine battery compartment under various working conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to a refrigerating unit, in particular to a marine battery cabin water-cooled liquid cooling unit. BACKGROUND

[0002] With the importance of energy saving and environmental protection of each country is higher and higher, the electrification of traditional fuel ships has become the mainstream direction of ship technology development. Because the tonnage of the ship is relatively large, the battery power consumption of other electric equipment is large, the battery power-on heating speed is fast, the heat is large, the heat will gather in the battery, which will not only affect the energy efficiency of the battery, but also will exist the security risk. The heat management of the conventional battery system is divided into natural cooling, air cooling and liquid cooling. The natural cooling is slow, the parts in the unit are easy to burn out, and it is obviously not suitable for ship use, the air cooling needs a lot of heat exchange, and the exchanged heat can only be dissipated in the air near the unit. Compared with natural cooling and air cooling, liquid cooling has great optimization, so it is urgent to develop a corresponding water-cooled unit for the demand of marine battery cabin. SUMMARY

[0003] The utility model provides a simple structure, can satisfy marine battery cabin each working condition under the heat refrigeration demand of marine battery cabin water-cooled liquid cooling unit.

[0004] The utility model adopts the technical scheme: a marine battery cabin water-cooled liquid cooling unit, including compressor, water-cooled heat exchanger and plate exchange, the gas of compressor is connected with the plate exchange one process through the water-cooled heat exchanger, the plate exchange one process connects the air inlet of compressor, and the other heat process of plate exchange is connected with the battery cabin through the refrigerant inlet pipe and the refrigerant outlet pipe, characterized by: the refrigerant inlet pipe is divided into three ways after the battery cabin passes through the inlet temperature sensor, inlet filter and inlet pressure sensor in turn, the first way is connected with the expansion tank, the expansion tank is connected with the water supply pipeline with water supply control valve group, the second way and the third way are connected with the inlet filter and the inlet control valve group in turn, the second way and the third way are connected with the heater and the exhaust valve in turn after being combined, and the other heat process of the plate exchange is connected with the battery cabin through the safety overflow valve, the outlet temperature sensor and the flow switch, and the overflow of the safety overflow valve is connected with the refrigerant inlet pipe between the inlet temperature sensor and the inlet filter.

[0005] The water supply control valve group is connected with the water supply check valve and the water supply ball valve in turn from the outside to the expansion tank.

[0006] The inlet control valve group is connected with the inlet check valve and the inlet ball valve in turn from the water pump to the plate exchange.

[0007] The refrigerant inlet pipe after the inlet temperature sensor is connected with the refrigerant outlet pipe after the flow switch through the direct pipe line, and the direct valve is arranged on the direct pipe line.

[0008] The compressor outlet air passes sequentially through a safety valve, a water-cooled heat exchanger, a dryer filter, and an electronic expansion valve to the plate heat exchanger first process. The expansion valve's expansion pack is located on the pipeline that connects back to the compressor inlet air in the plate heat exchanger first process.

[0009] The compressor is a multi-stage compressor.

[0010] The beneficial effects of this utility model are as follows: Based on the temperature of the refrigerant water returned from the battery compartment by the inlet water temperature sensor on the refrigerant inlet pipe, when the temperature meets the cooling requirements, the inlet water control valve group does not open; instead, the straight-through valve on the straight-through pipe is opened to send the refrigerant water back to the battery compartment for cooling. When the temperature does not meet the cooling requirements, based on the temperature rise, either a single-path or dual-path inlet water control valve group is opened. Combined with the expansion tank increasing the refrigerant water volume at the other inlet of the return plate heat exchanger, and coordinating with the multi-stage start-up cooling and heat exchange of the plate heat exchanger's compression and refrigeration power consumption, the refrigerant water, after heat exchange by the plate heat exchanger, passes through the safety overflow valve and outlet water... Temperature sensors and flow switches monitor the return of data to the battery compartment. The flow switch can also monitor the flow rate and control the dual-path water inlet control valve group for standby or fault switching, ensuring stable cooling of the battery compartment and preventing accidental damage caused by battery temperature rise due to unexpected shutdown. The safety overflow valve can monitor the flow rate and pressure of the supplied refrigerant water in real time, and send the overflow refrigerant water to the refrigerant water inlet pipe for storage in the expansion tank or direct delivery through the inlet water pump. When the battery compartment is operating at low temperatures, the heater can be turned on in conjunction with the exhaust valve to heat the refrigerant water inlet pipe and control the exhaust for safety. At this time, the compressor side does not work, and the refrigerant water outlet pipe provides heating. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] In the diagram: 1. Compressor; 2. Safety valve; 3. Water-cooled heat exchanger; 4. Dryer filter; 5. Electronic expansion valve; 6. Plate heat exchanger; 7. Refrigerant water inlet pipe; 8. Inlet water temperature sensor; 9. Inlet water filter; 10. Inlet water pressure sensor; 11. Makeup water pipe; 12. Makeup water check valve; 13. Makeup water ball valve; 14. Expansion tank; 15. Inlet water pump; 16. Inlet water check valve; 17. Inlet water ball valve; 18. Heater; 19. Exhaust valve; 20. Refrigerant water outlet pipe; 21. Safety overflow valve; 22. Outlet water temperature sensor; 23. Flow switch; 24. Straight-through pipe; 25. Straight-through valve. Detailed Implementation

[0013] The following description, in conjunction with the accompanying drawings and embodiments, provides further details.

[0014] Figure 1As shown: A marine battery compartment water-cooled liquid-cooled unit includes a compressor 1, a safety valve 2, a water-cooled heat exchanger 3, a dryer filter 4, an electronic expansion valve 5, a plate heat exchanger 6, a refrigerant water inlet pipe 7, an inlet water temperature sensor 8, an inlet water filter 9, an inlet water pressure sensor 10, a water supply pipe 11, a water supply check valve 12, a water supply ball valve 13, an expansion tank 14, an inlet water pump 15, an inlet water check valve 16, an inlet water ball valve 17, a heater 18, an exhaust valve 19, a refrigerant water outlet pipe 20, a safety overflow valve 21, an outlet water temperature sensor 22, a flow switch 23, a straight-through pipe 24, and a straight-through valve 25.

[0015] The exhaust gas from compressor 1 passes sequentially through safety valve 2, water-cooled heat exchanger 3, dryer filter 4, and electronic expansion valve 5 before connecting to plate heat exchanger 6. One flow path of plate heat exchanger 6 returns to the intake gas of compressor 1. The other hot flow path of plate heat exchanger 6 connects to the battery compartment via refrigerant inlet pipe 7 and refrigerant outlet pipe 20. Refrigerant inlet pipe 7, after passing sequentially from the battery compartment through inlet water temperature sensor 8, inlet water filter 9, and inlet water pressure sensor 10, splits into three paths. The first path connects to expansion tank 14, which in turn connects to a water supply pipe 11 with a water supply check valve 12 and a water supply ball valve 13 connected in series. The second and third paths are identical parallel structures. The water inlet pump 15, water inlet check valve 16, and water inlet ball valve 17 are connected in series. The second and third lines are combined and then connected to the other hot-range inlet of the plate heat exchanger 6 via the heater 18 and the exhaust valve 19. The other hot-range outlet of the plate heat exchanger 6 is connected to the refrigerant outlet pipe 20, which is connected to the battery compartment via the safety overflow valve 21, the outlet water temperature sensor 22, and the flow switch 23. The overflow of the safety overflow valve 21 is connected to the refrigerant inlet pipe between the inlet water temperature sensor and the inlet water filter. The refrigerant inlet pipe after the inlet water temperature sensor is connected to the straight pipe 24, which is connected to the refrigerant outlet pipe after the flow switch. A straight valve 25 is installed on the straight pipe.

[0016] In this embodiment, the expansion valve 5 is installed on the pipeline connecting the heat exchanger 6 to the intake of the compressor 1.

[0017] In this embodiment, compressor 1 is a multi-stage compressor.

Claims

1. A water-cooled liquid-cooled unit for a marine battery compartment, comprising a compressor, a water-cooled heat exchanger, and a plate heat exchanger, wherein the compressor outlet air passes through the water-cooled heat exchanger and is connected to the plate heat exchanger for one pass, the plate heat exchanger for one pass is returned to the compressor inlet air, and the other pass of the plate heat exchanger is connected to the battery compartment via a refrigerant inlet pipe and a refrigerant outlet pipe, characterized in that: The refrigerant inlet pipe is divided into three paths after passing through the battery compartment in sequence via the inlet water temperature sensor, the inlet water filter, and the inlet water pressure sensor. The first path connects to the expansion tank, which in turn connects to the water supply pipe with a water supply control valve assembly. The second and third paths are both inlet water pumps and water supply control valve assemblies connected in series. The second and third paths are combined and then connected to the other hot end inlet of the heat exchanger via the heater and the exhaust valve. The other hot end outlet of the heat exchanger is connected to the battery compartment via the safety overflow valve, the outlet water temperature sensor, and the flow switch. The overflow of the safety overflow valve is connected to the refrigerant inlet pipe between the inlet water temperature sensor and the inlet water filter.

2. The marine battery compartment water-cooled liquid-cooled unit according to claim 1, characterized in that: The water replenishment control valve group consists of a water replenishment check valve and a water replenishment ball valve connected in series from the outside to the expansion tank.

3. A marine battery compartment water-cooled liquid-cooled unit according to claim 1, characterized in that: The inlet control valve group consists of an inlet check valve and an inlet ball valve connected in series from the water pump to the heat exchanger.

4. A marine battery compartment water-cooled liquid-cooled unit according to claim 1, characterized in that: The refrigerant inlet pipe after the inlet water temperature sensor is connected to a straight-through pipe, which in turn connects to the refrigerant outlet pipe after the flow switch. A straight-through valve is installed on the straight-through pipe.

5. A marine battery compartment water-cooled liquid-cooled unit according to claim 1, characterized in that: The compressor outlet air passes sequentially through a safety valve, a water-cooled heat exchanger, a dryer filter, and an electronic expansion valve to the plate heat exchanger first process. The expansion valve's expansion pack is located on the pipeline that connects back to the compressor inlet air in the plate heat exchanger first process.

6. A marine battery compartment water-cooled liquid-cooled unit according to claim 1 or 5, characterized in that: The compressor is a multi-stage compressor.

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