Management device for small plate-type storage PMD

Abstract

The invention provides a management device for small plate type storage PMD, and particularly belongs to the technical field of gas-liquid separation. A large blade assembly and a small blade assembly both adopt vertical blades, the blades adopt a plug-in type mounting structure, the principle that surface tension drives liquid under microgravity is utilized, a plate type liquid management technology is adopted, and the surface tension of the liquid is utilized to complete transmission and storage of the liquid, and the blades are designed into middle hollow structures and small blades. The structure weight is reduced, the liquid storage function under microgravity is achieved through the combination of the two parts, and therefore liquid drainage without gas filling is achieved, shaking of liquid can be restrained, the overall structure is optimized, the weight is reduced, the structure is simple, and reliability is high. The device comprises a large blade assembly and a small blade assembly, and further comprises a blade positioning shaft and a liquid collector assembly, the large blade assembly is composed of a first large blade and a second large blade, and the small blade assembly is composed of a first small blade, a second small blade, a third small blade and a fourth small blade.

Description

Technical Field

[0001] The invention relates to a management device for small plate-type PMD storage, and specifically belongs to the technical field of gas-liquid separation. Background Art

[0002] The gas-liquid separation device of the propellant tank is the core technology of the orbital refueling system. At present, the gas-liquid separation on the ground is mainly completed by centrifugal gas-liquid separation technology, which is mainly achieved by rotating parts or designing spiral flow channels. When the rotating parts have a low speed or the flow rate of the spiral flow channel is small, the separation function cannot be achieved, which has certain defects;

[0003] When the propellant tank is refilled on-orbit, it is necessary to achieve venting without liquid inclusion in a microgravity environment. However, the gas and liquid in microgravity are in a mixed state. To achieve venting without liquid inclusion, the problem of gas-liquid separation in microgravity must be solved. The gas-liquid separation in microgravity mainly relies on surface tension or centrifugal force. Summary of the invention

[0004] The object of the present invention is to provide a management device for small plate-type PMD storage to achieve the purpose of gas-liquid separation and air-free discharge of propellant.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: the invention includes a large blade assembly and a small blade assembly, and also includes a blade positioning shaft and a liquid collector assembly; the large blade assembly is composed of a first large blade and a second large blade, and the small blade assembly is composed of a first small blade, a second small blade, a third small blade and a fourth small blade, the first large blade and the second large blade are connected together in a "cross" shape, the bottom ends of the first large blade and the second large blade are connected to the blade positioning shaft, the first small blade, the second small blade, the third small blade and the fourth small blade are connected to the blade positioning shaft, and the bottom end of the blade positioning shaft is connected to the liquid collector assembly.

[0006] Furthermore, the large blade assembly and the small blade assembly are connected and positioned through the blade positioning shaft. The sizes of the large blade assembly and the small blade assembly can be determined according to the size of the storage tank. The large blade assembly and the small blade assembly adopt a plug-in structure, which makes the overall structure highly reliable, light in weight, and easy to process and manufacture. Compared with the diaphragm storage tank of the same volume, the weight is 30% lighter.

[0007] The liquid collector assembly includes a collector base, a collector pressure plate, a collector support plate and a filter screen; a collector support plate is arranged on the outer side of the bottom end of the blade positioning shaft, a collector pressure plate is arranged below the collector support plate, and a filter screen is arranged between the collector support plate and the collector pressure plate, and a collector base is arranged below the collector pressure plate

[0008] Furthermore, the liquid collector assembly and the blade positioning shaft are installed together through the collector support plate, and the filter is fixed by the cooperation of the collector support plate and the collector pressure plate. The filter is used to filter bubbles to prevent them from passing through, and the gas and liquid are separated through the liquid collector assembly to discharge the liquid without entrained gas.

[0009] The thickness of the first and second largest blades is 0.5 mm to 1 mm, and the first and second largest blades are both made of thin plate materials. The cross-sections of the first and second largest blades are both hollow structures on the left and right sides, and the guide width of the first and second largest blades is 10 mm to 20 mm;

[0010] The first large blade and the second large blade have grooves with a width of 0.5 mm to 1 mm at the upper and lower parts, and the first large blade and the second large blade have grooves with a width of 5 mm to 10 mm and a height of 10 mm to 20 mm at the lower parts;

[0011] Furthermore, through the grooves opened on the first large blade and the second large blade, the first large blade and the second large blade can be snap-connected together, and at the same time, the first large blade and the second large blade can be plugged into the blade positioning shaft for fixation, and the liquid is guided into the liquid collector assembly through the large blade assembly.

[0012] The thickness of the first small blade, the second small blade, the third small blade and the fourth small blade are all 0.5 mm-1 mm, and the first small blade, the second small blade, the third small blade and the fourth small blade are all made of thin plate material, and the cross-sections of the first small blade, the second small blade, the third small blade and the fourth small blade are all arranged in a fan-shaped structure, and the middle parts of the first small blade, the second small blade, the third small blade and the fourth small blade are all provided with grooves with a width of 3 mm-5 mm and a height of 10 mm-20 mm;

[0013] The first small blade, the second small blade, the third small blade and the fourth small blade are set;

[0014] Furthermore, through the grooves opened on the first small blade, the second small blade, the third small blade and the fourth small blade, the first small blade, the second small blade, the third small blade and the fourth small blade can be snap-connected in sequence from bottom to top, so that the first small blade, the second small blade, the third small blade and the fourth small blade can be plugged into the blade positioning shaft for fixation, and the liquid is guided into the liquid collector assembly through the small blade assembly.

[0015] The collector pressing plate and the collector supporting plate are both provided with through holes, and the thickness of the collector pressing plate and the collector supporting plate is 0.5 mm to 1 mm;

[0016] Furthermore, through holes are provided on both the collector pressure plate and the collector support plate for liquid to pass through, and the size of the liquid collector assembly can be determined according to the size of the storage tank, so that the entire liquid collector assembly forms a closed structure.

[0017] The beneficial effects of the present invention are:

[0018] 1. Both the large blade assembly and the small blade assembly use vertical blades, and the blades use a plug-in installation structure. The surface tension under microgravity is used to drive the liquid principle. The plate-type liquid management technology is adopted, and the surface tension of the liquid is used to complete the transmission and retention of the liquid. The blades are designed to be a hollow structure in the middle and small blades, which reduces the weight of the structure. The combination of the two realizes the liquid retention function under microgravity, thereby realizing liquid discharge without aeration, and can also suppress the shaking of the liquid, optimize the overall structure, reduce weight, simple structure, and high reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the first large blade of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the second largest blade of the present invention;

[0022] Figure 4 is a schematic diagram of the cross-sectional structure of the first small blade of the present invention;

[0023] Figure 5 is a schematic diagram of the cross-sectional structure of the second small blade of the present invention;

[0024] Figure 6 is a schematic diagram of the cross-sectional structure of the third small blade of the present invention;

[0025] Figure 7 is a schematic diagram of the cross-sectional structure of the fourth small blade of the present invention;

[0026] Figure 8 It is a schematic diagram of the cross-sectional structure of the liquid collector assembly of the present invention.

[0027] 1. Large blade assembly; 101. First large blade; 102. Second large blade; 2. Small blade assembly; 201. First small blade; 202. Second small blade; 203. Third small blade; 204. Fourth small blade; 3. Blade positioning shaft; 4. Liquid collector assembly; 401. Collector base; 402. Collector pressure plate; 403. Collector support plate; 404. Filter. DETAILED DESCRIPTION

[0028] The following will be combined with the attached Figure 1-8, clearly and completely describe the technical solutions in the embodiments.

[0029] Specific implementation method 1: Figure 1-3 As shown, the device as a whole is composed of a large blade component 1, a small blade component 2, a liquid collector component 4 and a blade positioning shaft 3. The large blade component 1 is composed of a first large blade 101 and a second large blade 102, and the upper and lower parts of the first large blade 101 and the second large blade 102 are provided with grooves with a width of 0.5 mm to 1 mm, and the lower parts of the first large blade 101 and the second large blade 102 are provided with grooves with a width of 5 mm to 10 mm and a height of 10 mm to 20 mm. The second large blade 102 is inserted into the first large blade 101 through the groove to complete the assembly of the large blade component 1;

[0030] Specific implementation method 2: Figure 4-7 As shown, the small blade assembly 2 is composed of a first small blade 201, a second small blade 202, a third small blade 203 and a fourth small blade 204, and the middle parts of the first small blade 201, the second small blade 202, the third small blade 203 and the fourth small blade 204 are all provided with a groove with a width of 3 mm to 5 mm and a height of 10 mm to 20 mm. The first small blade 201, the second small blade 202, the third small blade 203 and the fourth small blade 204 are inserted from bottom to top in sequence to complete the assembly of the small blade assembly 2;

[0031] Since both the large blade assembly 1 and the small blade assembly 2 are made of thin plate material and have a thickness of 0.5 mm to 1 mm, the bottom ends of the large blade assembly 1 and the small blade assembly 2 can be fixedly mounted on the blade positioning shaft 3 to improve the stability of the overall structure. At the same time, both the large blade assembly 1 and the small blade assembly 2 use vertical blades, and a plug-in installation structure is used between the blades. The surface tension under microgravity drives the liquid principle, and the plate-type liquid management technology is used. The surface tension of the liquid is used to complete the transmission and retention of the liquid. The blade is designed to be a hollow structure in the middle and a small blade, which reduces the weight of the structure. The combination of the two realizes the liquid retention function under microgravity, thereby realizing the discharge without aeration, and can also suppress the shaking of the liquid, optimize the overall structure, reduce the weight, and has a simple structure and high reliability.

[0032] Specific implementation method three: Figure 8As shown, the liquid collector assembly 4 is composed of a collector base 401, a collector pressure plate 402, a collector support plate 403 and a filter screen 404. Through holes are provided on the collector pressure plate 402 and the collector support plate 403, so that after the large blade assembly 1 and the small blade assembly 2 cooperate to separate the gas and liquid, the liquid can be guided into the liquid collector assembly 4 along the large blade assembly 1 and the small blade assembly 2 to discharge the liquid without entraining gas, which is conducive to achieving non-aerated liquid discharge. The filter screen 404 can be limited and fixed by the cooperation of the collector pressure plate 402 and the collector support plate 403, so that the filter screen 404 can filter bubbles and prevent bubbles from passing through, which is conducive to improving the stability of the structure.

[0033] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent replacement and improvement made to the above embodiments without departing from the content of the technical solution of the present invention, based on the technical essence of the present invention, within the spirit and principles of the present invention, still fall within the protection scope of the technical solution of the present invention.

Claims

1. A PMD management device for small plate-type storage, comprising a large blade assembly (1) and a small blade assembly (2), characterized in that: It also includes a blade positioning shaft (3) and a liquid collector assembly (4); The large blade assembly (1) is composed of a first large blade (101) and a second large blade (102); the small blade assembly (2) is composed of a first small blade (201), a second small blade (202), a third small blade (203) and a fourth small blade (204); the first large blade (101) and the second large blade (102) are connected together in the shape of a cross; the bottom ends of the first large blade (101) and the second large blade (102) are connected to a blade positioning shaft (3); the first small blade (201), the second small blade (202), the third small blade (203) and the fourth small blade (204) are connected to the blade positioning shaft (3); and the bottom end of the blade positioning shaft (3) is connected to a liquid collector assembly (4).

2. A PMD management device for small plate storage according to claim 1, characterized in that: The liquid collector assembly (4) comprises a collector base (401), a collector pressure plate (402), a collector support plate (403) and a filter screen (404); A collector support plate (403) is arranged on the outer side of the bottom end of the blade positioning shaft (3), a collector pressing plate (402) is arranged below the collector support plate (403), a filter screen (404) is arranged between the collector support plate (403) and the collector pressing plate (402), and a collector base (401) is arranged below the collector pressing plate (402).

3. A PMD management device for small plate storage according to claim 1, characterized in that: The thickness of the first large blade (101) and the second large blade (102) are both 0.5 mm-1 mm, and the first large blade (101) and the second large blade (102) are both made of thin plate material. The cross-sections of the first large blade (101) and the second large blade (102) are both hollow structures on the left and right sides, and the guide width of the first large blade (101) and the second large blade (102) is 10 mm-20 mm.

4. A PMD management device for small plate storage according to claim 1, characterized in that: The upper and lower parts of the first large blade (101) and the second large blade (102) are both provided with grooves with a width of 0.5 mm to 1 mm, and the lower parts of the first large blade (101) and the second large blade (102) are provided with grooves with a width of 5 mm to 10 mm and a height of 10 mm to 20 mm.

5. A PMD management device for small plate storage according to claim 1, characterized in that: The thickness of the first small blade (201), the second small blade (202), the third small blade (203) and the fourth small blade (204) are all 0.5 mm to 1 mm, and the first small blade (201), the second small blade (202), the third small blade (203) and the fourth small blade (204) are all made of thin plate materials. The cross-sections of the first small blade (201), the second small blade (202), the third small blade (203) and the fourth small blade (204) are all fan-shaped structures, and the middle parts of the first small blade (201), the second small blade (202), the third small blade (203) and the fourth small blade (204) are all provided with grooves with a width of 3 mm to 5 mm and a height of 10 mm to 20 mm.

6. A PMD management device for small plate storage according to claim 2, characterized in that: The collector pressing plate (402) and the collector supporting plate (403) are both provided with through holes, and the thickness of the collector pressing plate (402) and the collector supporting plate (403) is 0.5 mm to 1 mm.

7. A PMD management device for small plate storage according to claim 1, characterized in that: The first small blade (201), the second small blade (202), the third small blade (203) and the fourth small blade (204) are arranged in a sequentially snap-fitting manner from bottom to top.

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