Dual-system air conditioning device of unmanned underwater vehicle

Abstract

The invention discloses an unmanned underwater vehicle dual-system air conditioning device which comprises a cabin body, a condenser is arranged on the outer side of the cabin body, an isolating valve and an air conditioner indoor unit are fixed to the inner wall of the cabin body, the condenser is connected with the isolating valve through a pipeline, and the isolating valve is connected with the air conditioner indoor unit through an air conditioner pipeline. The air conditioner indoor unit comprises an indoor unit shell, a liquid storage tank, an expansion valve, an evaporator and a compressor are sequentially connected in the indoor unit shell through a system pipeline, a centrifugal fan is arranged on the inner side of the evaporator, and an air conditioner air inlet is formed in the surface of the indoor unit shell. The compression refrigeration system and the separated heat pipe cooling system are combined, the first bypass is connected to the expansion valve in parallel, the second bypass is connected to the compressor in parallel, and switching of the compression refrigeration system and the heat pipe cooling system is controlled through on-off of the electromagnetic valve, so that the air conditioner operates different systems at different temperatures, and the effects of energy saving and heat dissipation are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of submersible air conditioning systems, and in particular to a dual-system air conditioning device for an unmanned submersible. Background Art

[0002] Conventional air conditioning systems use a compressor and refrigerant to convert mechanical energy into heat energy for cooling, that is, the compressor pressurizes the refrigerant to release heat, and then uses the refrigerant circulation to reduce pressure to absorb heat. This method consumes a lot of electricity, and in an unmanned submarine with tight power configuration, the power consumption of the air conditioning system is particularly luxurious.

[0003] For unmanned submersibles that stay underwater for a long time, it is common to use the low temperature of water to cool the interior of the submersible because there is abundant low-temperature water resources outside the submersible. This method is very energy-saving and has a simple structure.

[0004] However, when the submersible is in the upper or middle water surface or floating state, or operating in the shallow water layer around the equator, the water temperature is too high to reach the temperature for cooling the cabin. Therefore, under the two conditions of energy saving and heat dissipation performance, neither of the two methods can meet the requirements, and both devices will make the system too complicated and increase the weight, which is not conducive to the weight control of the submersible. Summary of the invention

[0005] The purpose of the present invention is to provide a dual-system air-conditioning device for an unmanned underwater vehicle. By combining a compression refrigeration system and a separate heat pipe cooling system, a first bypass is connected in parallel to the expansion valve, and a second bypass is connected in parallel to the compressor. By turning on and off the solenoid valve, the switching of the compression refrigeration system and the heat pipe cooling system is controlled, so that the air conditioner runs different systems at different temperatures, thereby achieving energy saving and heat dissipation effects.

[0006] The present invention provides the following technical solution: an unmanned underwater vehicle dual-system air conditioning device, comprising a cabin, a condenser is arranged on the outside of the cabin, an isolation valve and an air conditioner are fixed on the inner wall of the cabin, the air conditioner is located below the isolation valve and fixed on the side of the cabin, the condenser is connected to the isolation valve through a pipeline, and the isolation valve and the air conditioner are connected through an air conditioning pipeline; The air-conditioning indoor unit comprises an inner unit shell, wherein the inner unit shell contains a liquid storage tank, an expansion valve, an evaporator and a compressor which are connected in sequence through system pipelines, one end of the liquid storage tank is connected to a condenser through an air-conditioning pipeline, and the other end of the compressor is also connected to a condenser through an air-conditioning pipeline, a centrifugal fan is arranged on the inner side of the evaporator, an air-conditioning air inlet is provided on the surface of the inner unit shell, the air-conditioning air inlet is provided on the outer sides of the centrifugal fan and the evaporator, an air-conditioning air outlet duct is provided on one side surface of the inner unit shell, and the air-conditioning air outlet duct is connected to the outlet of the centrifugal fan.

[0007] In order to reduce the atomization process of the refrigerant, a first bypass is further connected between the liquid storage tank and the evaporator. The first bypass is connected in parallel to the expansion valve, and a first solenoid valve is arranged in the first bypass.

[0008] In order to reduce the compression process of the refrigerant, a second bypass is connected between the condenser and the evaporator. The second bypass is connected in parallel to the compressor. A second solenoid valve is arranged in the second bypass.

[0009] In order to make the air conditioner indoor unit run automatically, an electric control system and a control panel are fixed in the indoor unit shell. The control panel is installed on the surface of the indoor unit shell, and the electric control system is located on the back of the control panel.

[0010] In order to detect the pressure of the inner machine shell and ensure the normal operation of the air conditioner, a pressure gauge is also installed on the side of the inner machine shell.

[0011] In order to improve the anti-seismic capability of the internal equipment of the air conditioner indoor unit, a mounting vibration isolator is connected to the back of the indoor unit shell, and the mounting vibration isolator is fixed to the inner wall of the cabin.

[0012] In order to connect the condenser with the indoor unit of the air conditioner, the condenser includes an internal pressure-resistant liquid collecting pipe, a protective baffle is provided at the upper end of the pressure-resistant liquid collecting pipe, and a through-cabin pipeline is connected to the side of the condenser, and the through-cabin pipeline is connected to the isolation valve.

[0013] In order to ensure stable installation of the condenser, a mounting foot is fixed to the lower end of the condenser, and the mounting foot is fixed to the outer surface of the cabin.

[0014] Including compression cooling mode and heat pipe cooling mode; If the seawater temperature exceeds +20°C, the system closes the second solenoid valve and the first solenoid valve at both ends of the evaporator, and the system operates in compression cooling mode; If the seawater temperature is lower than +20°C, the system shuts down the compressor, opens the second solenoid valve and the first solenoid valve, opens the second bypass and the first bypass, and the system operates in heat pipe cooling mode.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: (1) By combining the compression refrigeration system and the separate heat pipe cooling system, connecting the first bypass in parallel to the expansion valve and the second bypass in parallel to the compressor, the switching of the compression refrigeration system and the heat pipe cooling system is controlled by turning on and off the solenoid valve, so that the air conditioner runs different systems at different temperatures, thereby achieving energy saving and heat dissipation effects; (2) The condenser is installed outside the cabin so that it is in contact with seawater. The seawater is used to condense and liquefy the refrigerant in the condenser, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the dual-system air conditioning device for an unmanned underwater vehicle of the present invention; Figure 2 is a flow diagram of a refrigerant in a compression refrigeration mode of the present invention; Figure 3 is a flow diagram of a refrigerant in a heat pipe refrigeration mode of the present invention; Figure 4 It is a schematic diagram of the installation position of the indoor unit and condenser of the air conditioner of the present invention; Figure 5 is a structural diagram of an indoor unit of an air conditioner of the present invention; Figure 6 is an internal structural diagram of an air conditioner indoor unit of the present invention; Figure 7 is a diagram showing the internal structure of the indoor unit of the air conditioner of the present invention from another perspective; Figure 8 It is a structural schematic diagram of a condenser of the present invention; In the figure: 1. condenser; 101. protective baffle; 102. pressure-resistant liquid collecting pipe; 103. through-cabin pipeline; 104. mounting foot; 11. isolation valve; 12. air-conditioning pipeline; 2. liquid storage tank; 3. evaporator; 4. compressor; 5. first solenoid valve; 51. first bypass; 6. expansion valve; 7. second solenoid valve; 71. second bypass; 8. cabin; 9. air-conditioning indoor unit; 91. air-conditioning air inlet; 92. air-conditioning air outlet; 93. control panel; 94. electronic control system; 95. inner unit casing; 96. pressure gauge; 97. vibration isolator installation; 98. centrifugal fan; 99. system pipeline. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Embodiment 1 See also Figure 1 and Figures 4 to 7The present invention provides a technical solution: an unmanned underwater vehicle dual-system air-conditioning device, comprising a cabin 8, a condenser 1 is arranged on the outside of the cabin 8, the condenser 1 is arranged in seawater, an isolation valve 11 and an air-conditioning indoor unit 9 are fixed on the inner wall of the cabin 8, the air-conditioning indoor unit 9 is wall-mounted, the isolation valve 11 ensures the sealing between the cabin 8 and the seawater outside, the air-conditioning indoor unit 9 is located below the isolation valve 11 and fixed to the side of the cabin 8, the condenser 1 is connected to the isolation valve 11 through a pipeline, the isolation valve 11 and the air-conditioning indoor unit 9 are connected through an air-conditioning pipeline 12, there are two isolation valves 11, and the two isolation valves 11 are used to improve the sealing between the air-conditioning pipeline 12 at both ends of the condenser 1 and the cabin 8; like Figure 2 As shown, the air conditioner indoor unit 9 includes an indoor unit housing 95, and the indoor unit housing 95 is connected with a liquid storage tank 2, an expansion valve 6, an evaporator 3 and a compressor 4 in sequence through a system pipeline 99. The liquid storage tank 2 is communicated with the expansion valve 6, and the other end of the expansion valve 6 is communicated with the evaporator 3, and the other end of the evaporator 3 is communicated with the compressor 4. Refrigerant is stored in the liquid storage tank 2, and one end of the liquid storage tank 2 is connected to the condenser 1 through an air conditioning pipeline 12, and the other end of the compressor 4 is also connected to the condenser 1 through the air conditioning pipeline 12, forming a compression refrigeration mode, which is applied to water temperatures between 20-32°C. During compression refrigeration, the refrigerant flows out of the liquid storage tank 2, passes through the expansion valve 6 to reduce the pressure of the refrigerant and spray atomize it, vaporizes and absorbs heat in the evaporator 3, and reduces the temperature of the evaporator 3. Then the vaporized refrigerant passes through The compression of the compressor 4 enters the condenser 1. The compressed refrigerant is in a high-temperature and high-pressure state. The refrigerant is condensed into liquid after being cooled by the seawater outside the condenser 1. A centrifugal fan 98 is arranged on the inner side of the evaporator 3. An air-conditioning air inlet 91 is opened on the surface of the inner machine shell 95. The air-conditioning air inlet 91 is opened on the outer side of the centrifugal fan 98 and the evaporator 3. An air-conditioning air outlet duct 92 is opened on one side surface of the inner machine shell 95. The air-conditioning air outlet duct 92 is connected to the outlet of the centrifugal fan 98. The air in the cabin 8 is introduced into the air-conditioning indoor unit 9 through the centrifugal fan 98. The wind passes through the evaporator 3 for cooling. The cooled cold air is discharged from the air-conditioning air outlet duct 92 through the centrifugal fan 98, so as to cool the space in the cabin 8. After cooling, the cabin temperature is 27°C and the relative humidity is 50%.

[0019] like Figure 6 As shown, an electric control system 94 and a control panel 93 are fixed in the inner machine shell 95. The control panel 93 is installed on the surface of the inner machine shell 95. The control panel 93 is used to display the operating temperature. The electric control system 94 is located on the back of the control panel 93. The electric control system is used to realize the automatic operation of the air-conditioning device so that the air in the cabin can be close to the set temperature.

[0020] A pressure gauge 96 is also installed on the side of the inner unit housing 95. The pressure of the air conditioner inner unit 9 is detected by the pressure gauge 96 so that the air conditioner inner unit 9 can operate normally.

[0021] like Figure 6 As shown, a vibration isolator 97 is connected to the back of the inner machine shell 95, and the vibration isolator 97 is fixed to the inner wall of the cabin 8. The vibration isolator 97 enhances the seismic performance of the inner machine shell 95 and reduces the vibration of the internal equipment caused by the movement of the submersible.

[0022] like Figure 8 As shown, the condenser 1 includes an internal pressure-resistant liquid collecting pipe 102, and a protective baffle 101 is provided at the upper end of the pressure-resistant liquid collecting pipe 102, and the protective baffle 101 is used to protect the pressure-resistant liquid collecting pipe 102. A through-cabin pipeline 103 is connected to the side of the condenser 1, and the through-cabin pipeline 103 is connected to both ends of the pressure-resistant liquid collecting pipe 102. The through-cabin pipeline 103 is connected to the isolation valve 11.

[0023] A mounting foot 104 is fixed to the lower end of the condenser 1 , and the mounting foot 104 is fixed to the outer surface of the cabin 8 . The mounting foot 104 can reduce the vibration of the condenser 1 , so that the installation of the condenser 1 is more stable.

[0024] Embodiment 2 like Figure 1 As shown, in this embodiment, a first bypass 51 is further connected between the liquid storage tank 2 and the evaporator 3, the first bypass 51 is connected in parallel to the expansion valve 6, and a first solenoid valve 5 is arranged in the first bypass 51, the first bypass 51 is controlled by the first solenoid valve 5, and the liquid storage tank 2 is directly connected to the evaporator 3 by the first bypass 51; like Figure 1 As shown, a second bypass 71 is also connected between the condenser 1 and the evaporator 3. The second bypass 71 is connected in parallel to the compressor 4. A second solenoid valve 7 is provided in the second bypass 71. The second bypass 71 is controlled by the second solenoid valve 7 to directly connect the evaporator 3 and the condenser 1. like Figure 3 As shown, by opening the first solenoid valve 5 and the second solenoid valve 7 to connect the first bypass 51 and the second bypass 71, the air-conditioning device is set to the heat pipe cooling mode, and the compressor 4 is turned off at the same time. The heat pipe cooling mode is applied to the water temperature below 20°C, so that the refrigerant flows directly from the liquid storage tank 2 to the evaporator 3. The refrigerant absorbs the heat of the hot air sent from the cabin in the evaporator 3 and evaporates into gas. The gaseous refrigerant is then transported to the condenser outside the cabin through a pipeline. The gaseous refrigerant condenses and liquefies after being cooled, and the liquefied refrigerant flows into the liquid storage tank 2 again to achieve circulating cooling, thereby continuously cooling the cabin air.

[0025] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A dual-system air conditioning device for an unmanned underwater vehicle, comprising a cabin, characterized in that: A condenser is arranged on the outside of the cabin, an isolation valve and an air conditioner are fixed on the inner wall of the cabin, the air conditioner is located below the isolation valve and fixed on the side of the cabin, the condenser is connected to the isolation valve through a pipeline, and the isolation valve and the air conditioner are connected through an air conditioning pipeline; The air-conditioning indoor unit comprises an inner unit shell, wherein the inner unit shell contains a liquid storage tank, an expansion valve, an evaporator and a compressor which are connected in sequence through system pipelines, one end of the liquid storage tank is connected to a condenser through an air-conditioning pipeline, and the other end of the compressor is also connected to a condenser through an air-conditioning pipeline, a centrifugal fan is arranged on the inner side of the evaporator, an air-conditioning air inlet is provided on the surface of the inner unit shell, the air-conditioning air inlet is provided on the outer sides of the centrifugal fan and the evaporator, an air-conditioning air outlet duct is provided on one side surface of the inner unit shell, and the air-conditioning air outlet duct is connected to the outlet of the centrifugal fan.

2. The dual-system air conditioning device for an unmanned underwater vehicle according to claim 1, characterized in that: A first bypass is also connected between the liquid storage tank and the evaporator. The first bypass is connected in parallel to the expansion valve, and a first solenoid valve is arranged in the first bypass.

3. The dual-system air conditioning device for an unmanned underwater vehicle according to claim 1, characterized in that: A second bypass is also connected between the condenser and the evaporator. The second bypass is connected in parallel to the compressor. A second solenoid valve is arranged in the second bypass.

4. The dual-system air conditioning device for an unmanned underwater vehicle according to claim 1, characterized in that: An electric control system and a control panel are also fixed in the inner machine shell. The control panel is installed on the surface of the inner machine shell, and the electric control system is located on the back of the control panel.

5. The dual-system air conditioning device for an unmanned underwater vehicle according to claim 1, characterized in that: A pressure gauge is also installed on the side of the inner machine shell.

6. The dual-system air conditioning device for an unmanned underwater vehicle according to claim 1, characterized in that: A mounting vibration isolator is connected to the back side of the inner machine shell, and the mounting vibration isolator is fixed on the inner wall of the cabin.

7. The dual-system air conditioning device for an unmanned underwater vehicle according to claim 1, characterized in that: The condenser includes an internal pressure-resistant liquid collecting pipe, the upper end of which is provided with a protective baffle, and the side of the condenser is connected to a through-cabin pipeline, which is connected to an isolation valve.

8. The dual-system air conditioning device for an unmanned underwater vehicle according to claim 1, characterized in that: A mounting foot is fixed at the lower end of the condenser, and the mounting foot is fixed on the outer surface of the cabin.

9. The dual-system air conditioning device for an unmanned underwater vehicle according to any one of claims 1 to 3, characterized in that: Including compression cooling mode and heat pipe cooling mode; If the seawater temperature exceeds +20°C, the system closes the second solenoid valve and the first solenoid valve at both ends of the evaporator, and the system operates in compression cooling mode; If the seawater temperature is lower than +20°C, the system shuts down the compressor, opens the second solenoid valve and the first solenoid valve, opens the second bypass and the first bypass, and the system operates in heat pipe cooling mode.

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