Space station water tank gas-liquid separation type filling connector base structure

Abstract

A gas-liquid separation type filling connector base structure of a space station water tank aims at achieving the technical purpose that drinking water provided for astronauts in the water tank can be smoothly filled and discharged in the manned lunar landing process, and comprises a base body, a liquid path assembly and a gas path assembly, the base body is located above the water tank, and the liquid path assembly is located above the liquid path assembly; the liquid path assembly and the air path assembly are arranged in the base body from left to right, the liquid path assembly and the air path assembly are integrally formed with the base body, and the liquid path assembly is communicated with the water tank inner bag; and the air path assembly is communicated with an air gap between the inner bag and the outer bag of the water tank. A liquid path and an air path are designed into two passages which do not interfere with each other and are communicated with the interior of the inner bag of the water tank and an air gap between the inner bag and the outer bag respectively. And finally, gas in the air gap can be smoothly discharged when liquid is filled into the inner bag, and meanwhile, the liquid in the inner bag can be smoothly discharged by adding pressurized gas into the air gap connector in the liquid discharging process of the inner bag. The method is applied to the technical field of space flight and aviation.

Description

Technical Field

[0001] The invention relates to a gas-liquid separation type water tank, and in particular to a gas-liquid separation type filling interface base structure of a space station water tank. The invention belongs to the field of aerospace technology. Background Art

[0002] The soft water tanks used during manned lunar landings need to be able to fill and discharge drinking water. The new spacecraft water tanks use an inner and outer double-layer bladder structure. The inner bladder is the water storage space of the water tank, and the outer bladder is a pressure-bearing structure. The water tanks on spacecraft work in microgravity and zero-gravity environments for a long time. Liquid and pressurized gas exist in the same tank at the same time, which determines that it is very different from ordinary pressure vessels. In a microgravity environment, the gas-liquid interface is no longer horizontal, and the distribution of liquid is also discontinuous. In the presence of external interference, the position of the liquid is not stable, and migration, collision, gas-liquid mixing and other phenomena may occur. Therefore, it is necessary to ensure that the liquid in the water tank can be discharged smoothly to solve the problem of smooth filling and discharge of drinking water provided to astronauts in the water tank during manned lunar landings. Summary of the invention

[0003] In order to solve the technical problem of smoothly filling and discharging drinking water provided to astronauts in a water tank during manned lunar landing, the present invention further proposes a gas-liquid separation filling interface base structure for a space station water tank.

[0004] The technical solution adopted by the present invention to solve the above problems is:

[0005] The present invention includes a base body, a liquid circuit assembly and an air circuit assembly. The base body is located above a water tank. The liquid circuit assembly and the air circuit assembly are arranged in the base body from left to right, and the liquid circuit assembly and the air circuit assembly are integrally formed with the base body. The liquid circuit assembly is connected to an inner bag of the water tank; the air circuit assembly is connected to the air gap between the inner and outer bags of the water tank.

[0006] Furthermore, the liquid circuit assembly includes an external liquid circuit interface, a liquid circuit channel and an internal liquid circuit port, wherein the upper end of the liquid circuit channel is connected to the external liquid circuit interface, and the lower end of the liquid circuit channel is connected to the internal liquid circuit port.

[0007] Furthermore, the gas circuit assembly includes an external gas circuit interface, an gas circuit channel and an internal gas circuit port, one end of the gas circuit channel is connected to the external gas circuit interface, and the other end of the gas circuit channel is connected to the internal gas circuit port.

[0008] Furthermore, the gas path is an L-shaped channel.

[0009] Furthermore, the base body is a cylinder, the upper part of the cylinder is provided with an inclined surface and a horizontal surface, the external interface of the liquid circuit is located on the inclined surface of the base body, and the external interface of the gas circuit is located on the horizontal surface of the base; the bottom of the cylinder is provided with a circular outer edge.

[0010] Furthermore, the base body is made of food-grade thermoplastic polyurethane elastomer material.

[0011] The beneficial effects of the present invention are:

[0012] 1. The present invention designs the liquid path and the gas path as two non-interfering paths, which are connected to the inside of the water tank inner bag and the air gap between the inner and outer bags respectively. Finally, when the inner bag is filled with liquid, the gas in the air gap can be discharged smoothly. At the same time, during the process of discharging liquid from the inner bag, pressurized gas can be added to the air gap interface to achieve smooth discharge of the inner bag liquid;

[0013] 2. The base body of the present invention adopts a hard TPU material water tank base, which is convenient for astronauts to hold. At the same time, the hard TPU material can ensure the stability of the gas and liquid circuit disconnectors when connected to the water tank. The hard gas and liquid circuit structures can prevent the flow channels from being squeezed and blocked. At the same time, the base body material adopts the same TPU material as the inner capsule of the water tank, which can achieve high-reliability heat sealing between the base and the inner capsule of the water tank, so that the inner capsule of the water tank meets the airtightness index requirements;

[0014] 3. The present invention is an important component of the new spacecraft soft water tank, which can be used in the manned spaceflight environmental control and life support system for the storage and flow drive of astronauts' drinking water and urine, and has strong market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of the external structure of the base body of the present invention;

[0016] Figure 2 yes Figure 1 Stereoscopic image of

[0017] Figure 3 It is a schematic diagram of the internal structure of the base body of the present invention.

[0018] In the figure: 1, external interface of liquid circuit; 2, liquid circuit channel; 3, internal opening of liquid circuit; 4, external interface of gas circuit; 5, gas circuit channel; 6, internal opening of gas circuit; 7, base body; 7-1, inclined surface; 7-2, horizontal surface; 7-3, circular outer edge; 7-4, barb structure. DETAILED DESCRIPTION

[0019] The present embodiment describes a space station water tank gas-liquid separation filling interface base structure, such as Figure 2As shown, it includes a base body 7, a liquid circuit assembly and an air circuit assembly, the base body is located above the water tank, the liquid circuit assembly and the air circuit assembly are arranged in the base body from left to right, and the liquid circuit assembly and the air circuit assembly are integrally formed with the base body, the liquid circuit assembly and the air circuit assembly are two non-interfering passages, respectively connected to the inside of the inner capsule of the water tank and the air gap between the inner and outer capsules of the water tank. Finally, when liquid is added to the inner capsule of the water tank, the gas in the air gap can be smoothly discharged, and at the same time, the liquid in the inner capsule can be smoothly discharged by adding pressurized gas to the air gap interface during the discharge process from the inner capsule.

[0020] like Figure 2 As shown, the liquid circuit assembly includes a liquid circuit external interface 1, a liquid circuit channel 2 and a liquid circuit internal port 3, wherein the upper end of the liquid circuit channel 2 is connected to the liquid circuit external interface 1, and the lower end of the liquid circuit channel 2 is connected to the liquid circuit internal port 3. The liquid circuit internal port 3 is connected to the inner bag of the water tank.

[0021] The gas circuit assembly includes an external gas circuit interface 4, a gas circuit passage 5 and an internal gas circuit port 6. One end of the gas circuit passage 5 is connected to the external gas circuit interface 4, and the other end of the gas circuit passage 5 is connected to the internal gas circuit port 6. The internal gas circuit port 6 is connected to the air gap between the inner and outer bags of the water tank.

[0022] Preferably, the gas channel 5 is an L-shaped channel. In order to ensure the integrity of the base structure, the processing is carried out by an integrated injection molding method. In order to ensure the integrated demoulding of the base structure, the gas channel is designed to be "L"-shaped, achieving efficient integrated demoulding.

[0023] like Figure 1 As shown, the base body 7 is a cylinder, the upper part of the cylinder is provided with an inclined surface 7-1 and a horizontal surface 7-2, the external liquid circuit interface 1 is located on the inclined surface 7-1 of the base 7, and the external gas circuit interface 4 is located on the horizontal surface 7-2 of the base 1; the bottom of the cylinder is provided with a circular outer edge 7-3.

[0024] Preferably, the base body 7 is made of food-grade thermoplastic polyurethane elastomer (TPU for short). The processing technology is mature and the cost is controllable. At the same time, the base structure is made of food-grade TPU material, which can be in direct contact with drinking water and has antibacterial and mildew-proof properties, which can ensure the safety of astronauts' drinking water. The base material and the inner capsule of the water tank are made of the same TPU material, and the inner capsule and the base can be sealed by high-frequency heat sealing. TPU material is a common food-grade material. TPU can be processed into soft film materials and hard materials. The water tank developed with TPU material can be used for the storage and management of drinking water in manned spaceflight. The base body of the present invention adopts a hard TPU material water tank base, which is convenient for astronauts to hold. At the same time, the hard TPU material can ensure the stability of the gas and liquid circuit disconnectors when connected to the water tank. The hard gas and liquid circuit structures can prevent the flow channel from being squeezed and blocked.

[0025] Preferably, a barb structure 7-4 is designed on the periphery of the cylinder of the base body 7, which can achieve fitting with the outer bladder of the water tank and facilitate casting and demolding.

[0026] 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 space station water tank gas-liquid separation filling interface base structure, characterized by: The base structure of a space station water tank gas-liquid separation filling interface comprises a base body (7), a liquid circuit assembly and an air circuit assembly, wherein the base body (7) is located above the water tank, the liquid circuit assembly and the air circuit assembly are arranged in the base body (7) from left to right, and the liquid circuit assembly and the air circuit assembly are integrally formed with the base body (7), the liquid circuit assembly is connected to the inner bag of the water tank; and the air circuit assembly is connected to the air gap between the inner and outer bags of the water tank.

2. A space station water tank gas-liquid separation filling interface base structure according to claim 1, characterized in that: The liquid circuit assembly comprises an external liquid circuit interface (1), a liquid circuit channel (2) and an internal liquid circuit port (3); the upper end of the liquid circuit channel (2) is connected to the external liquid circuit interface (1), and the lower end of the liquid circuit channel (2) is connected to the internal liquid circuit port (3).

3. The space station water tank gas-liquid separation filling interface base structure according to claim 1 is characterized by: The gas circuit assembly comprises an external gas circuit interface (4), an gas circuit passage (5) and an internal gas circuit port (6); one end of the gas circuit passage (5) is connected to the external gas circuit interface (4), and the other end of the gas circuit passage (5) is connected to the internal gas circuit port (6).

4. The space station water tank gas-liquid separation filling interface base structure according to claim 3 is characterized by: The gas path channel (5) is an L-shaped channel.

5. The space station water tank gas-liquid separation filling interface base structure according to claim 1, characterized in that: The base body (7) is a cylinder, the upper part of which is provided with an inclined surface (7-1) and a horizontal surface (7-2), the liquid circuit external interface (1) is located on the inclined surface (7-1) of the base body (7), and the gas circuit external interface (4) is located on the horizontal surface (7-2) of the base (1); and the bottom of the cylinder is provided with a circular outer edge (7-3).

6. A space station water tank gas-liquid separation filling interface base structure according to claim 1 or 5, characterized in that: The base body (7) is made of food-grade thermoplastic polyurethane elastomer material.

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