A supercritical-fluid-based power and cooling system and method

Abstract

The present invention relates to a power and cooling system and method based on supercritical fluid. The system consists of a supercritical carbon dioxide source, a booster pump, a motor, a module control valve, a reversing valve, a double-acting hydraulic cylinder, and a radar front end that are successively and tightly connected. The working medium flowing between the various components in the system is supercritical carbon dioxide. The system has two working modes: a power mode and a cooling mode. When working in the power mode, the module control valve is connected to the reversing valve, and supercritical carbon dioxide enters the double-acting hydraulic cylinder to push the double-acting hydraulic cylinder to extend or contract, realizing the erection or retraction of the radar front end. When working in the cooling mode, the module control valve is connected to the radar front end, and supercritical carbon dioxide enters the radar front end to achieve cooling. The system integrates a hydraulic lifting system and a liquid cooling system by using supercritical carbon dioxide as the medium, with a simple structure and improved maneuverability of the high-mobility radar.

Description

Technical Field

[0001] The present invention relates to a power and cooling system based on supercritical fluid, and specifically, to a power and cooling system based on supercritical carbon dioxide and applicable to an elevated mobile radar. Background Art

[0002] The elevated mobile radar has developed rapidly due to its strong mobility and good low-altitude performance. However, the continuously increasing thermal power consumption and front-end mass have become the key factors restricting the further development of the elevated mobile radar. At present, when the elevated mobile radar works, the front end is erected to a certain height through a hydraulic lifting system, and the front end is cooled by air cooling or liquid cooling; however, air cooling can no longer meet the continuously increasing thermal power consumption, and the liquid cooling system has a complex structure, which is not conducive to improving the mobility of the radar.

[0003] At present, the publicly disclosed invention patents have respectively carried out very sufficient research on the liquid cooling system and the hydraulic lifting system. However, limited by the working medium, there is a lack of a circulating system that can both load and cool. Supercritical carbon dioxide has good flow and heat transfer characteristics, and its density is close to that of a liquid. It can be considered to use supercritical carbon dioxide as the working medium to simultaneously realize the load and cooling functions, which not only enhances the cooling capacity, but also simplifies the system and improves the mobility. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] Aiming at the defects of the complex structures of the hydraulic lifting system and the liquid cooling system of the elevated mobile radar, a power and cooling system based on supercritical carbon dioxide is provided. This system simultaneously has the functions of the hydraulic lifting system and the liquid cooling system, and while ensuring that the cooling capacity and the load capacity are not weakened, it improves the mobility of the elevated mobile radar.

[0006] Technical Solution

[0007] A power and cooling system based on supercritical fluid, characterized in that it includes a supercritical fluid source, a booster pump, a module control valve, a reversing valve, a double-acting hydraulic cylinder and a radar front end. The outlet of the supercritical fluid source is connected to the inlet of the booster pump; the outlet of the booster pump is connected to the inlet of the module control valve; the module control valve has two outlets, which are respectively connected to the inlet of the reversing valve and the inlet of the radar front end; the outlet of the reversing valve is connected to the inlet of the double-acting hydraulic cylinder, and the outlet of the double-acting hydraulic cylinder is connected to the inlet of the supercritical carbon dioxide source through the reversing valve; the outlet of the radar front end is also connected to the inlet of the supercritical fluid source.

[0008] The supercritical fluid source is a supercritical carbon dioxide source.

[0009] It further includes a motor, and the motor provides power for the booster pump.

[0010] A power and cooling method implemented by a supercritical fluid-based power and cooling system, characterized by including a power mode and a cooling mode:

[0011] The power mode: In the module control valve, PA is connected and PB is not connected. The motor drives the booster pump to rotate, supplying supercritical carbon dioxide to the reversing valve. When PA is connected and BT is connected in the reversing valve, the supercritical carbon dioxide pushes the double-acting hydraulic cylinder to extend. The supercritical carbon dioxide flows from the B port of the double-acting hydraulic cylinder to the T port of the reversing valve 4 and then returns to the supercritical carbon dioxide source 1 to complete the cycle, and the radar front end is erected. When PB is connected and AT is connected in the reversing valve, the supercritical carbon dioxide pushes the double-acting hydraulic cylinder to retract. The supercritical carbon dioxide flows from the A port of the double-acting hydraulic cylinder to the T port of the reversing valve and then returns to the supercritical carbon dioxide source to complete the cycle, and the radar front end is retracted.

[0012] The cooling mode: In the module control valve, PB is connected and PA is not connected. The motor drives the booster pump to rotate, supplying supercritical carbon dioxide to the radar front end. The supercritical carbon dioxide cools the radar front end and then returns to the supercritical carbon dioxide source. In the supercritical carbon dioxide source, the supercritical carbon dioxide is cooled by natural heat dissipation to complete the entire cycle.

[0013] Beneficial effects

[0014] A supercritical fluid-based power and cooling system proposed by the present invention, when operating in the power mode, the module control valve is connected to the reversing valve, and the supercritical carbon dioxide enters the double-acting hydraulic cylinder to push the double-acting hydraulic cylinder to extend or contract, realizing the erection or retraction of the radar front end. When operating in the cooling mode, the module control valve is connected to the radar front end, and the supercritical carbon dioxide enters the radar front end to achieve cooling. It has the following characteristics:

[0015] (1) Using supercritical carbon dioxide as the medium can not only ensure that the load capacity meets the requirements, but also improve the cooling capacity of the system.

[0016] (2) This system integrates the hydraulic lifting system and the liquid cooling system by using supercritical carbon dioxide as the medium, with a simple structure and improved maneuverability of the high-mobility radar. Description of the drawings

[0017] The drawings are only for the purpose of showing specific embodiments and are not considered as a limitation of the present invention. Throughout the drawings, the same reference signs represent the same components.

[0018] Figure 1 It is a schematic diagram of the principle of a supercritical carbon dioxide-based power and cooling system described in the present invention.

[0019] In the figure: 1 - supercritical carbon dioxide source; 2 - booster pump; 3 - motor; 4 - module control valve; 5 - reversing valve; 6 - double-acting hydraulic cylinder; 7 - radar front end. Detailed implementation manners

[0020] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0021] A power and cooling system based on supercritical carbon dioxide. The system consists of a supercritical carbon dioxide source, a booster pump, a module control valve, a reversing valve, a double-acting hydraulic cylinder and a radar front end. The system has two working modes, namely a power mode and a cooling mode, and can realize the functions of load and cooling.

[0022] The described power and cooling system based on supercritical carbon dioxide consists of a supercritical carbon dioxide source, a booster pump, a module control valve, a reversing valve, a double-acting hydraulic cylinder and a radar front end that are closely connected in sequence. The working medium flowing between the various components in the system is supercritical carbon dioxide. Among them, the outlet of the supercritical carbon dioxide source is connected to the inlet of the booster pump; the outlet of the booster pump is connected to the inlet of the module control valve; the module control valve has two outlets, which are respectively connected to the inlet of the reversing valve and the inlet of the radar front end; the outlet of the reversing valve is connected to the inlet of the double-acting hydraulic cylinder, and the outlet of the double-acting hydraulic cylinder is connected to the inlet of the supercritical carbon dioxide source through the reversing valve; the outlet of the radar front end is also connected to the inlet of the supercritical carbon dioxide source.

[0023] The described module control valve determines the working mode of the system. When the system is in the power mode, the passage connecting the module control valve and the reversing valve is switched on; when the system is in the cooling mode, the passage connecting the module control valve and the radar front end is switched on.

[0024] The described double-acting hydraulic cylinder erects the radar front end to a certain height and retracts the radar front end after the work is completed.

[0025] The described radar front end is the heat source of the system, and a large amount of heat is generated during its operation. The present invention cools it through supercritical carbon dioxide.

[0026] The described supercritical carbon dioxide is in a phase state where gas and liquid are indistinguishable. It has good flow and heat transfer characteristics, and its density is close to that of a liquid. Therefore, it can be used as both a transmission medium and a heat transfer medium in the system.

[0027] In order to enable those skilled in the art to better understand the present invention, the present invention will be described in detail below in conjunction with specific embodiments.

[0028] Example 1:

[0029] This example is a power and cooling system based on supercritical carbon dioxide. The system includes a supercritical carbon dioxide source 1, a booster pump 2, a motor 7, a module control valve 3, a reversing valve 4, a double-acting hydraulic cylinder 5, and a radar front end 6.

[0030] When this example is in operation, there are two working modes: the power mode and the cooling mode. The following is an introduction to the two working modes respectively.

[0031] Power mode: As Figure 1 shown, in the module control valve 3, PA is connected and PB is not connected. The motor 7 drives the booster pump 2 to rotate, supplying supercritical carbon dioxide to the reversing valve 4. When in the reversing valve 4, PA is connected and BT is connected, the supercritical carbon dioxide pushes the double-acting hydraulic cylinder 5 to extend. The supercritical carbon dioxide flows from the B port of the double-acting hydraulic cylinder 5 to the T port of the reversing valve 4 and then returns to the supercritical carbon dioxide source 1 to complete the cycle, and the radar front end 6 is erected. When in the reversing valve 4, PB is connected and AT is connected, the supercritical carbon dioxide pushes the double-acting hydraulic cylinder 5 to retract. The supercritical carbon dioxide flows from the A port of the double-acting hydraulic cylinder 5 to the T port of the reversing valve 5 and then returns to the supercritical carbon dioxide source 1 to complete the cycle, and the radar front end 6 is retracted.

[0032] Cooling mode: As Figure 1 shown, in the module control valve 3, PB is connected and PA is not connected. The motor 7 drives the booster pump 2 to rotate, supplying supercritical carbon dioxide to the radar front end 6. The supercritical carbon dioxide cools the radar front end 6 and then returns to the supercritical carbon dioxide source 1. In the supercritical carbon dioxide source 1, the supercritical carbon dioxide is cooled by natural heat dissipation to complete the entire cycle.

[0033] The present invention uses supercritical carbon dioxide as the working medium to simultaneously achieve the functions of load and cooling, not only enhancing the cooling capacity, but also simplifying the system and improving the maneuverability of the elevated mobile radar.

[0034] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A power and cooling system based on supercritical fluid, characterized in that It includes a supercritical fluid source (1), a booster pump (2), a module control valve (3), a reversing valve (4), a double-acting hydraulic cylinder (5) and a radar front end (6). The outlet of the supercritical fluid source (1) is connected to the inlet of the booster pump (2); the outlet of the booster pump (2) is connected to the inlet of the module control valve (3); the module control valve (3) has two outlets, which are respectively connected to the inlet of the reversing valve (4) and the inlet of the radar front end (6); the outlet of the reversing valve (4) is connected to the inlet of the double-acting hydraulic cylinder (5), and the outlet of the double-acting hydraulic cylinder (5) is connected to the inlet of the supercritical fluid source (1) through the reversing valve (4); the outlet of the radar front end (6) is also connected to the inlet of the supercritical carbon dioxide source; Among them, the supercritical fluid source (1) is a supercritical carbon dioxide source, and the supercritical carbon dioxide is in a phase state where gas and liquid are indistinguishable; The module control valve is used to determine the working mode of the system. Among them, when the system is working in the power mode, the passage connecting the module control valve and the reversing valve is switched on; in the module control valve, PA is switched on while PB is not, and the motor drives the booster pump to rotate, supplying supercritical carbon dioxide to the reversing valve. When PA in the reversing valve is connected and BT is connected, the supercritical carbon dioxide pushes the double-acting hydraulic cylinder to extend, and the supercritical carbon dioxide flows from the B port of the double-acting hydraulic cylinder to the T port of the reversing valve (4) and then returns to the supercritical carbon dioxide source to complete the cycle, and the radar front end is erected; when PB in the reversing valve is connected and AT is connected, the supercritical carbon dioxide pushes the double-acting hydraulic cylinder to retract, and the supercritical carbon dioxide flows from the A port of the double-acting hydraulic cylinder to the T port of the reversing valve and then returns to the supercritical carbon dioxide source to complete the cycle, and the radar front end is withdrawn; When the system is working in the cooling mode, the passage connecting the module control valve and the radar front end is switched on; in the module control valve, PB is switched on while PA is not, and the motor drives the booster pump to rotate, supplying supercritical carbon dioxide to the radar front end. The supercritical carbon dioxide cools the radar front end and then returns to the supercritical carbon dioxide source, and the supercritical carbon dioxide is cooled by natural heat dissipation in the supercritical carbon dioxide source to complete the entire cycle.

2. The power and cooling system based on supercritical fluid according to claim 1, characterized in that It also includes a motor, which provides power for the booster pump.

3. A power and cooling method implemented by the system according to claim 1, characterized in that It includes a power mode and a cooling mode: The described power mode: In the modular control valve, PA is connected while PB is not. The motor drives the booster pump to rotate, supplying supercritical carbon dioxide to the reversing valve. When PA in the reversing valve is connected to BT, the supercritical carbon dioxide pushes the double-acting hydraulic cylinder to extend. The supercritical carbon dioxide flows from the B port of the double-acting hydraulic cylinder to the T port of the reversing valve (4) and then returns to the supercritical carbon dioxide source to complete the cycle, and the radar front end is erected. When PB in the reversing valve is connected to AT, the supercritical carbon dioxide pushes the double-acting hydraulic cylinder to retract. The supercritical carbon dioxide flows from the A port of the double-acting hydraulic cylinder to the T port of the reversing valve and then returns to the supercritical carbon dioxide source to complete the cycle, and the radar front end is retracted. The described cooling mode: In the modular control valve, PB is connected while PA is not. The motor drives the booster pump to rotate, supplying supercritical carbon dioxide to the radar front end. The supercritical carbon dioxide cools the radar front end and then returns to the supercritical carbon dioxide source. In the supercritical carbon dioxide source, the supercritical carbon dioxide is cooled by natural heat dissipation to complete the entire cycle.

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