CN216401826U - Vacuum tank for space environment simulation test box - Google Patents

Abstract

The utility model discloses a vacuum tank for a space environment simulation test box, which comprises a tank body with a circular structure, wherein the tank body comprises an outer shell and a heat sink inner container positioned in the shell, an annular gap is formed between the outer shell and the heat sink inner container, an oil inlet main pipe and an oil return main pipe are arranged in the annular gap, a plurality of branch pipes are connected between the oil inlet main pipe and the oil return main pipe, and each branch pipe is tightly attached to the outer wall of the heat sink inner container; the oil inlet main pipe and the oil return main pipe are provided with external sections penetrating out of the tank body, and the external sections are externally connected with a heating device and an oil pump; the tank body is provided with a flange interface communicated with the interior of the tank body, and the flange interface is used for being externally connected with a vacuum-pumping system. The utility model has the beneficial effects that: the heat radiation state under the space environment can be simulated by the external heating device and the vacuumizing system.

Description

Vacuum tank for space environment simulation test box

Technical Field

The utility model relates to an environmental test chamber, in particular to a vacuum tank for a space environment simulation test chamber.

Background

The environmental test chamber is a test device capable of simulating various environmental factors such as temperature, pressure, humidity and the like, and can be used for testing the service performance of any product under specific environmental factors, such as: the product in the fields of automobiles, electronics and electricians, aerospace, instrument automation and the like.

The space environment is also called as a cosmic environment, and refers to the edge of the atmosphere and other cosmic spaces, and the space environment is in a vacuum state, and the air pressure of the space environment is equal to or infinitely close to 0.

Currently, with the rapid development of aerospace and communication satellite related fields, more and more products need to be tested for various service performances in a space environment, such as the performance change of the products after the products are heated and radiated in the space environment.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a vacuum tank for a space environment simulation test chamber, which can form a vacuum high-temperature thermal radiation environment inside the vacuum tank, and help a product to realize a high-temperature thermal radiation test in a space environment.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

a vacuum tank for a space environment simulation test box is characterized in that: the heat sink tank comprises a tank body with a circular structure, wherein the tank body comprises an outer shell and a heat sink inner container positioned in the shell, an annular gap is formed between the outer shell and the heat sink inner container, an oil inlet main pipe and an oil return main pipe are arranged in the annular gap, a plurality of branch pipes are connected between the oil inlet main pipe and the oil return main pipe, and each branch pipe is tightly attached to the outer wall of the heat sink inner container; the oil inlet main pipe and the oil return main pipe are provided with external sections penetrating out of the tank body, and the external sections are externally connected with a heating device and an oil pump; the tank body is provided with a flange interface communicated with the interior of the tank body, and the flange interface is used for being externally connected with a vacuum-pumping system.

Adopt above-mentioned vacuum tank, place the product behind jar internal portion, through leading into the oil medium of heating to the intraductal circulation of oil feed person in charge, bleeder and oil return main line, can carry out the heat radiation to jar internal portion product. The vacuumizing system is connected to the flange interface, so that the interior of the tank body can be vacuumized, and the performance test of the product under the space environment by heat radiation can be realized.

Preferably, the method comprises the following steps: the jar body has the open end, open end detachably disposes the door closure, the inside horizontal installation of heat sink inner bag has the support baffle, and the support baffle can be followed open end roll-off. By adopting the structure, the product can be conveniently taken and placed.

Preferably, the method comprises the following steps: the supporting partition plate is internally provided with an oil duct, the oil duct is provided with an oil inlet and an oil outlet, and the oil inlet are communicated with each other through flexible hoses and the oil outlet and the oil return main pipe are communicated with each other. By adopting the structure, after the high-temperature oil medium is introduced, heat radiation can be formed on the bottom of a tested product, and the reliability of a high-temperature heat radiation test is ensured.

Preferably, the method comprises the following steps: the inner wall of the heat sink inner container is coated with black paint, and the inner wall of the outer shell is provided with a polished surface. By adopting the structure, heat energy can be prevented from being dissipated outwards, and the heating effect is more remarkable.

Preferably, the method comprises the following steps: the oil inlet main pipe and the oil return main pipe extend along the length direction of the tank body, the annular gaps are located in the space below the supporting partition plates, and the branch pipes are of circular arc structures and are tightly attached to the outer wall of the upper portion of the heat sink inner container. By adopting the structure, after the test product is placed on the supporting partition plate, the arc-shaped branch pipe is installed on the outer wall of the upper part of the heat sink liner, so that the product on the supporting partition plate can be in a better heat radiation state, and the reliability of the test is ensured.

Compared with the prior art, the utility model has the beneficial effects that:

the vacuum tank for the space environment simulation test box provided by the utility model can simulate the heat radiation state in the space environment through the external connection of the heating device and the vacuum pumping system, and meanwhile, the structural design of the vacuum tank body is reasonable, and the vacuum tank has the technical advantages of convenience in taking and placing products, uniform temperature distribution and remarkable heating effect.

Drawings

FIG. 1 is a reference diagram of a vacuum tank in use on a space environment simulation test box;

FIG. 2 is a cross-sectional view of a vacuum canister;

FIG. 3 is a schematic view of the structure of a vacuum tank;

FIG. 4 is a schematic structural view of the vacuum tank after the outer shell is hidden;

fig. 5 is a schematic view of the heating oil path inside the vacuum tank (the supporting partition is in a cross-sectional view).

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

As shown in fig. 1 and 2, a space environment simulation test box, its structure includes a bracket assembly 1, bracket assembly 1 comprises left socle 1a and right socle 1b of controlling the distribution, wherein, fixed mounting has the vacuum tank on the right socle 1b, the vacuum tank mainly includes and is circular structure jar body 2, jar body 2 level is placed on right socle 1b, the right-hand member of jar body 2 is open end 2e, detachably installs door closure 8 on open end 2e, jar body 2 comprises heat sink inner bag 2a and the outside shell body 2b that is located heat sink inner bag 2a, the inside level of heat sink inner bag 2a is provided with supporting diaphragm 2c, when carrying out the thermal radiation test, the product is placed on supporting diaphragm 2 c.

Further, referring to fig. 4, supporting platforms 2a1 are disposed at two ends inside the heat sink inner container 2a, two ends of the supporting partition 2c are slidably disposed on the corresponding supporting platforms 2a1, and after the door 8 is opened, the supporting partition 2c can be slidably drawn out from the inside of the heat sink inner container 2a, so as to facilitate taking and placing of the test product.

An annular gap A is formed between the outer shell 2b and the heat sink inner container 2a, an oil pipe assembly 3 is distributed in the annular gap A, as can be seen from fig. 4 and 5, in the embodiment, the oil pipe assembly 3 comprises an oil inlet main pipe 3a and an oil return main pipe 3b which are positioned in the annular gap A, four branch pipes 3c are connected between the oil inlet main pipe 3a and the oil return main pipe 3b, and the four branch pipes 3c are distributed on the outer wall of the heat sink inner container 2a in an array manner. As can be seen from fig. 2, the oil inlet main pipe 3a and the oil return main pipe 3b both have external sections e penetrating out of the left end of the tank body 2, a return circulation pipe 6 is connected between the two external sections e, an oil pump 7 and a heating device 4 are arranged on the return circulation pipe 6, after the oil pump 7 and the heating device 4 are started, oil circularly flows inside the oil pipe assembly 3, and the oil flowing through the branch pipe 3c can perform heat radiation on the inside of the heat sink inner container 2a, so as to achieve the purpose of heating and warming.

Further, support baffle 2c is inside to be equipped with and to be "S" type oil duct a that comes and goes the distribution, and oil duct a has oil inlet b and oil outlet c, and oil inlet b and oil feed are responsible for between 3a and all communicate through flexible hose d between oil outlet c and the oil return are responsible for 3b, so design, can directly heat support baffle 2c, and then the bottom of rapid heating up test product. The flexible hose d can ensure that the support baffle 2c can slide in and out of the heat sink liner 2 a.

As shown in fig. 4 and 5, the oil inlet main pipe 3a and the oil return main pipe 3b both extend along the length direction of the tank body 2, the oil inlet main pipe 3a and the oil return main pipe 3b are symmetrically distributed in a space where the annular gap a is located below the supporting partition plate 2c, the branch pipes 3c are arc structures, each arc structure is tightly attached to the outer wall of the upper portion of the heat sink inner container 2a, and the branch pipes 3c of the arc structures and the oil passage a inside the supporting partition plate 2c can enable products on the supporting partition plate 2c to be subjected to better heat radiation, so that the reliability of the test is ensured.

Can set up the black coating on heat sink inner bag 2 a's the inner wall to prevent the inside outside loss of heat energy of heat sink inner bag 2a, can set up the reflection of light coating on shell body 2 b's the inner wall, inside in order to radiate the heat in the annular gap A to heat sink inner bag 2a, thereby promote the heat radiation effect to the inside test product of heat sink inner bag 2 a. In this embodiment, the black coating on the inner wall of the heat sink inner container 2a is black paint, and the reflective coating on the inner wall of the outer casing 2b is formed by metal polishing technology, that is, the inner wall of the outer casing 2b has a polished surface.

As shown in fig. 1, a vacuum pumping system 5 is installed on the left support 1a of the support assembly 1, and the vacuum pumping system 5 adopts a three-stage vacuum pumping manner to pump the interior of the tank 2, which includes a molecular pump 5a communicated with the interior of the heat sink inner container 2a, a rotary vane pump 5b communicated with the interior of the heat sink inner container 2a, and a roots pump 5c communicated with the interior of the heat sink inner container 2 a. When the vacuum pumping is performed, the rotary vane pump 5b and the roots pump 5c firstly pump the air pressure in the heat sink inner container 2a to be lower than 50Pa, and then the molecular pump 5a is started, so that the air pressure in the heat sink inner container 2a can be pumped to be vacuum or 5.5 multiplied by 10^-5The Pa limit is close to the vacuum state, and further a space environment is provided for the interior of the test box.

Further, as can be seen from fig. 2 and 3, the tank body 2 is provided with flange joints 2d, the flange joints 2d have three positions, and the three flange joints 2d are respectively connected with the molecular pump 5a, the rotary vane pump 5b and the roots pump 5 c. The outer shell 2b is provided with a first annular door frame 2b1 corresponding to the open end 2e, the door cover 8 is provided with a second annular door frame 8a corresponding to the first annular door frame 2b1, the area of the door cover 8 corresponding to the inside of the second annular door frame 8a protrudes outwards, the door cover 8 protrudes outwards, so that the inside of the heat sink inner container 2a is communicated with the annular gap A at the position, the inner end of the flange interface 2d is communicated with the annular gap A, and the communication of the molecular pump 5a, the rotary vane pump 5b and the Roots pump 5c with the inside of the heat sink inner container 2a can be realized through the passage.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims (6)

1. A vacuum tank for a space environment simulation test box is characterized in that: the oil-cooling type oil tank comprises a tank body (2) with a circular structure, wherein the tank body (2) comprises an outer shell (2b) and a heat sink inner container (2a) positioned inside the shell (2b), an annular gap (A) is formed between the outer shell (2b) and the heat sink inner container (2a), an oil inlet main pipe (3a) and an oil return main pipe (3b) are arranged in the annular gap (A), a plurality of branched pipes (3c) are connected between the oil inlet main pipe (3a) and the oil return main pipe (3b), and each branched pipe (3c) is tightly attached to the outer wall of the heat sink inner container (2 a); the oil inlet main pipe (3a) and the oil return main pipe (3b) are both provided with external sections (e) penetrating out of the tank body (2), and the external sections (e) are externally connected with a heating device and an oil pump; the tank body (2) is provided with a flange interface (2d) communicated with the interior of the tank body, and the flange interface (2d) is used for externally connecting a vacuum-pumping system.

2. The vacuum tank for a space environment simulation test chamber according to claim 1, wherein: the jar body (2) have open end (2e), open end (2e) detachably disposes door closure (8), the inside horizontal installation of heat sink inner bag (2a) has support baffle (2c), and support baffle (2c) can be followed open end (2e) roll-off.

3. The vacuum tank for a space environment simulation test chamber according to claim 2, wherein: the supporting partition plate (2c) is internally provided with an oil duct (a), the oil duct (a) is provided with an oil inlet (b) and an oil outlet (c), and the oil inlet (b) is communicated with the oil inlet main pipe (3a) and the oil outlet (c) is communicated with the oil return main pipe (3b) through flexible hoses (d).

4. The vacuum tank for a space environment simulation test chamber according to claim 1, wherein: the inner wall of the heat sink inner container (2a) is coated with black paint, and the inner wall of the outer shell (2b) is provided with a polished surface.

5. The vacuum tank for a space environment simulation test chamber according to claim 1, wherein: the oil inlet is responsible for (3a) and the oil return is responsible for (3b) and all extends along the length direction of jar body (2), and the symmetric distribution is in annular gap (A) is located the space of support baffle (2c) below, each lateral pipe (3c) are the circular arc structure, and hug closely on the outer wall on heat sink inner bag (2a) upper portion.

6. The vacuum tank for a space environment simulation test chamber according to claim 2, wherein: the position that shell body (2b) corresponds open end (2e) is equipped with first annular door frame (2b1), be equipped with on door closure (8) with first annular door frame (2b1) adapted second annular door frame (8a), door closure (8) correspond the inside regional outside protrusion of second annular door frame (8a), so that annular gap (A) and the inside intercommunication of heat sink inner bag (2 a).

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