Liquid air separation device for liquid oxygen

Abstract

The utility model relates to the technical field of air separation devices, in particular to a liquid air separation device for liquid oxygen, which comprises an air inlet pipe and a filter pipe, the side wall of the filter pipe is fixedly connected with an air outlet pipe, a block convenient to disassemble is arranged between the air inlet pipe and the filter pipe, and a filter mechanism for filtering air impurities is arranged in the filter pipe. The filtering mechanism comprises a circulating pipe fixedly connected to the interior of the filtering pipe, a water storage tank is fixedly connected to the bottom of the inner wall of the filtering pipe, one end of the circulating pipe penetrates through the inner wall of the top of the water storage tank, and a plurality of air distribution holes evenly distributed at equal intervals are formed in the top of the water storage tank. Compared with the prior art, through the design of the multi-stage filtering structure, impurity harmful substances in air can be progressively removed layer by layer from large to small and from coarse to fine, the filtering effect is more thorough, the impurity harmful substances in the air can be effectively filtered out, the quality of liquid oxygen and liquid nitrogen produced subsequently is better, and the quality of the liquid oxygen and liquid nitrogen is improved. The requirements of specific application are met, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation devices, in particular to a liquid air separation device of liquid oxygen. Background Art

[0002] Liquid oxygen liquid air separation unit is an air separation equipment used to directly produce liquid oxygen and liquid nitrogen. Its main feature is that it mainly produces liquid products and may not produce or produce a small amount of gas products. Liquid air separation equipment can be regarded as a combination of conventional air separation equipment and liquefaction equipment. Its refrigeration system and heat exchange system are similar to those of liquefaction equipment of corresponding production levels. The device separates air into oxygen and other gases through a specific process. When the air separation unit separates the air, it needs to filter the impurities in the air.

[0003] The Chinese patent discloses: a gas impurity separator, patent application number: 202321639088.2, the patent "The utility model discloses a gas impurity separator, including an end cover and a cylinder, and the cylinder is movably connected to the bottom of the end cover. It relates to the technical field of separators, and solves the problem that the existing gas impurity separators cannot ensure sealing while conveniently disassembling the filter element and flexibly cleaning the inside of the separator. Through the provision of lock buckles, sealing gaskets, sealing plugs, and sealing rings, a lock buckle is provided on the surface of the connecting cover, a sealing gasket is provided at the bottom of the connecting cover, a sealing plug is also provided at the bottom of the water outlet, and a sealing ring is provided between the filter core sleeve and the cylinder, so as to achieve effective sealing of the separator when the gas impurities are separated; through the provision of the filter core sleeve, the lifting handle and the latch, the filter element inside the separator can be conveniently removed and replaced."

[0004] Although the device can drive the rotating column together with the rotating disassembly head, the connecting screw, the rotating column, the cleaning brush, the lifting handle and the spiral disassembly head to make the cleaning brush rotate inside the cylinder to achieve the purpose of cleaning the inner wall of the cylinder, the device only filters the air through the filter cylinder, and the filtering effect is not good. If the filtering effect is not good, the impurity content in the product may exceed the standard, affecting the quality and purity of the product and making it unable to meet the requirements of specific applications. Utility Model Content

[0005] In view of this, the purpose of the utility model is to propose a liquid air separation device for liquid oxygen to solve the problem that the equipment only filters the air through a filter cartridge, and the filtering effect is poor. If the filtering effect is poor, the impurity content in the product may exceed the standard, affecting the quality and purity of the product and making it unable to meet the requirements of specific applications.

[0006] Based on the above purpose, the utility model provides a liquid air separation device for liquid oxygen, including an air inlet pipe and a filter tube, the side wall of the filter tube is fixedly connected with an air outlet pipe, a disassembly block is arranged between the air inlet pipe and the filter tube, and a filtering mechanism for filtering air impurities is arranged inside the filter tube.

[0007] Preferably, the filtering mechanism includes a flow tube fixedly connected to the inside of the filter tube, the bottom of the inner wall of the filter tube is fixedly connected to a water storage tank, one end of the flow tube passes through the top inner wall of the water storage tank, the top of the water storage tank is provided with a plurality of equidistant and evenly distributed air distribution holes, the inside of the flow tube is rotatably connected to a rotating rod, one end of the rotating rod is fixedly connected to a rotating blade, and the other end of the rotating rod is fixedly connected to a bubble separation rod.

[0008] Preferably, the filtering mechanism comprises a first filter screen fixedly connected to the outer wall of the circulation pipe, and the outer wall of the first filter screen is fixedly connected with zeolite, an adsorption cylinder and a second filter screen in sequence.

[0009] Preferably, the top and bottom of the disassembled block are fixedly connected with threaded rings, the insides of the air inlet pipe and the filter tube are fixedly connected with fixed blocks, the side walls of the fixed blocks are fixedly connected with sealing gaskets, and the inner walls of the air inlet pipe and the filter tube at one end close to the disassembled block are provided with threaded grooves, and the outer walls of the threaded rings are in contact with the threaded grooves.

[0010] Preferably, a water exchange pipe is fixedly connected to one side of the filter tube, and one end of the water exchange pipe passes through the inner wall of the filter tube and is fixedly connected to the water storage tank.

[0011] Preferably, the outer wall of the detachable block is fixedly connected with a swivel ring, and the outer wall of the swivel ring is provided with an anti-slip groove.

[0012] Preferably, a funnel hole is provided inside the dismantling block and contacts the top of the circulation tube.

[0013] Preferably, the aperture of the first filter screen is larger than the aperture of the second filter screen.

[0014] Preferably, the water in the water storage tank submerges the top of the excessive air holes.

[0015] Preferably, the interior of the adsorption cylinder is filled with activated carbon.

[0016] The beneficial effects of the utility model are as follows: air passes through the funnel hole and the circulation pipe and is transported to the inside of the water storage tank. At this time, the air blows the rotating blades, and then the rotating blades drive the rotating rod to rotate, and the rotating rod drives the bubble separation rod inside the water storage tank to rotate, so as to disperse the air transported into the water storage tank, thereby forming a plurality of small bubbles to increase the contact area between air and water, and then the air will float up from the air separation holes on the top of the water storage tank and the setting of the air separation holes will play a role in forming a plurality of small bubbles in the air and further increase the contact area between air and water, thereby adsorbing impurities in the air into the water, and then the air will enter the first filter screen and pass through the first filter screen and the zeolite and the adsorption cylinder and the second filter screen in sequence. When the air passes through the first The filter will filter out larger particles in the air. After filtering, when passing through zeolite and adsorption cylinder, the zeolite and adsorption cylinder can adsorb harmful gases and odor molecules in the air through the excellent adsorption performance on the surface. At this time, when the air passes through the second filter, the pore size of the second filter is smaller, and the smaller impurities in the cavity can be filtered out. The air passes through the multi-stage filtration structure such as water adsorption and the first filter, zeolite, adsorption cylinder and second filter. This design can progressively remove impurities and harmful substances in the air layer by layer, from large to small, from coarse to fine, to ensure a more thorough filtration effect. It can effectively filter out impurities and harmful substances in the air, so that the subsequent output of liquid oxygen and liquid nitrogen is of better quality, meeting the requirements of specific applications and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the air intake pipe and the filter pipe of the utility model;

[0020] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0021] The markings in the figure are:

[0022] 1. Inlet pipe; 2. Filter pipe; 3. Exit pipe; 4. Disassembly block; 5. Flow pipe; 6. Water storage tank; 7. Air distribution hole; 8. Rotating rod; 9. Rotating blade; 10. Bubble separation rod; 11. First filter screen; 12. Zeolite; 13. Adsorption cylinder; 14. Second filter screen; 15. Threaded ring; 16. Fixed block; 17. Sealing gasket; 18. Threaded groove; 19. Water exchange pipe; 20. Rotating circle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figures 1 to 3 As shown, a liquid air separation device for liquid oxygen includes an air inlet pipe 1 and a filter tube 2, the side wall of the filter tube 2 is fixedly connected with an air outlet pipe 3, a disassembly block 4 is arranged between the air inlet pipe 1 and the filter tube 2, and a filtering mechanism for filtering air impurities is arranged inside the filter tube 2.

[0026] For further information, see Attachment Figure 2 and Figure 3As shown, the filtering mechanism includes a circulation pipe 5 fixedly connected to the inside of the filter tube 2, a water storage tank 6 is fixedly connected to the bottom of the inner wall of the filter tube 2, one end of the circulation pipe 5 passes through the top inner wall of the water storage tank 6, a plurality of evenly distributed air distribution holes 7 are opened on the top of the water storage tank 6, the water in the water storage tank 6 submerges the top of the air distribution holes 7, the inside of the circulation pipe 5 is rotatably connected to a rotating rod 8, one end of the rotating rod 8 is fixedly connected to a rotating blade 9, and the other end of the rotating rod 8 is fixedly connected to a bubble separation rod 10, the filtering mechanism includes a first filter screen 11 fixedly connected to the outer wall of the circulation pipe 5, the outer wall of the first filter screen 11 is fixedly connected to a zeolite 12, an adsorption cylinder 13 and a second filter screen 14 in sequence, the inside of the adsorption cylinder 13 is filled with activated carbon, and the pore size of the first filter screen 11 is larger than the pore size of the second filter screen 14;

[0027] When the filtering mechanism is in use, the gas is first transported to the air inlet pipe 1 through an external device, and then the air passes through the funnel hole and the circulation pipe 5 and is transported to the inside of the water tank 6. At this time, the air blows the rotating blades 9, and then the rotating blades 9 drive the rotating rod 8 to rotate, and the rotating rod 8 drives the bubble dividing rod 10 inside the water tank 6 to rotate, thereby breaking up the air transported into the water tank 6, thereby forming a plurality of small bubbles to increase the contact area between air and water, and then the air will float up from the air dividing holes 7 at the top of the water tank 6 and through the setting of the air dividing holes 7, a plurality of small bubbles are formed in the air to further increase the contact area between air and water, thereby adsorbing impurities in the air into the water, and then the air will enter the first filter screen 11 and pass through the first filter screen 11 and the zeolite 12 and The adsorption cylinder 13 and the second filter 14, when the air passes through the first filter 11, larger particles in the air will be filtered out. After being filtered, when the air passes through the zeolite 12 and the adsorption cylinder 13, the zeolite 12 and the adsorption cylinder 13 can adsorb harmful gases and odor molecules in the air through the excellent adsorption performance on the surface. At this time, when the air passes through the second filter 14, the pore size of the second filter 14 is smaller, and smaller impurities in the cavity can be filtered out. The air passes through the first filter 11, zeolite 12, adsorption cylinder 13, and the second filter 14 and other multi-stage filtering structures. This design can remove impurities and harmful substances in the air layer by layer, from large to small, from coarse to fine, to ensure a more thorough filtering effect. Impurities and harmful substances in the air can be effectively filtered out, so that the subsequent output of liquid oxygen and liquid nitrogen can have better quality.

[0028] For further information, see Attachment Figure 2As shown, the top and bottom of the disassembly block 4 are fixedly connected with threaded rings 15, the inside of the air intake pipe 1 and the filter tube 2 are fixedly connected with fixed blocks 16, the side walls of the fixed blocks 16 are fixedly connected with sealing gaskets 17, the inner walls of the air intake pipe 1 and the filter tube 2 close to the disassembly block 4 are provided with threaded grooves 18, the outer wall of the threaded ring 15 is in contact with the threaded grooves 18, when the filter tube 2 needs to be disassembled to clean the inside of the filter tube 2, by rotating the convenient rotating ring 20, the convenient rotating ring 20 drives the disassembly block 4 to rotate The disassembly block 4 is then moved, and then the disassembly block 4 drives the thread ring 15 on the thread groove 18. When the thread ring 15 at one end of the disassembly block 4 leaves the interior of the intake pipe 1, the filter tube 2 can be taken out for internal cleaning. When installation is required, the disassembly block 4 is rotated in the opposite direction. The disassembly block 4 will drive the thread ring 15 to rotate and be threadedly connected with the thread groove 18. When the rotation is continued, the top of the thread ring 15 will be squeezed on the side wall of the sealing gasket 17 in the intake pipe 1 and the filter tube 2, thereby playing a sealing role and facilitating installation.

[0029] For further information, see Attachment Figure 1 As shown, a water changing pipe 19 is fixedly connected to one side of the filter tube 2, and one end of the water changing pipe 19 passes through the inner wall of the filter tube 2 and is fixedly connected to the water storage tank 6. The water changing pipe 19 facilitates the replacement of water in the water storage tank 6.

[0030] For further information, see Attachment Figure 1 As shown, the outer wall of the disassembly block 4 is fixedly connected to the convenient rotating circle 20, and the outer wall of the convenient rotating circle 20 is provided with an anti-skid groove, which increases the friction force when the convenient rotating circle 20 is rotated.

[0031] For further information, see Attachment Figure 2 As shown, a funnel hole is provided inside the disassembly block 4 and contacts the top of the circulation tube 5 , so that air can be transported into the circulation tube 5 through the funnel hole.

[0032] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0033] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A liquid oxygen liquid air separation device, characterized in that: It comprises an air inlet pipe (1) and a filter pipe (2), the side wall of the filter pipe (2) being fixedly connected to an air outlet pipe (3), a detachable block (4) being arranged between the air inlet pipe (1) and the filter pipe (2), and a filter mechanism for filtering air impurities being arranged inside the filter pipe (2).

2. A liquid oxygen liquid air separation device according to claim 1, characterized in that: The filtering mechanism comprises a flow pipe (5) fixedly connected to the inside of the filtering tube (2); the bottom of the inner wall of the filtering tube (2) is fixedly connected to a water storage tank (6); one end of the flow pipe (5) passes through the top inner wall of the water storage tank (6); the top of the water storage tank (6) is provided with a plurality of evenly distributed air distribution holes (7); the inside of the flow pipe (5) is rotatably connected to a rotating rod (8); one end of the rotating rod (8) is fixedly connected to a rotating blade (9); and the other end of the rotating rod (8) is fixedly connected to a bubble separation rod (10).

3. A liquid oxygen liquid air separation device according to claim 2, characterized in that: The filtering mechanism comprises a first filter screen (11) fixedly connected to the outer wall of the circulation pipe (5), and the outer wall of the first filter screen (11) is fixedly connected with zeolite (12), an adsorption cylinder (13) and a second filter screen (14) in sequence.

4. A liquid oxygen liquid air separation device according to claim 1, characterized in that: The top and bottom of the dismantling block (4) are fixedly connected with threaded rings (15); the insides of the air intake pipe (1) and the filter tube (2) are fixedly connected with fixed blocks (16); the side walls of the fixed blocks (16) are fixedly connected with sealing gaskets (17); the inner walls of the air intake pipe (1) and the filter tube (2) at one end close to the dismantling block (4) are provided with threaded grooves (18); the outer walls of the threaded rings (15) are in contact with the threaded grooves (18).

5. The liquid oxygen liquid air separation device according to claim 1, characterized in that: A water exchange pipe (19) is fixedly connected to one side of the filter pipe (2), and one end of the water exchange pipe (19) penetrates the inner wall of the filter pipe (2) and is fixedly connected to the water storage tank (6).

6. A liquid oxygen liquid air separation device according to claim 1, characterized in that: The outer wall of the convenient disassembly block (4) is fixedly connected to a convenient rotating circle (20), and the outer wall of the convenient rotating circle (20) is provided with an anti-slip groove.

7. A liquid oxygen liquid air separation device according to claim 2, characterized in that: The dismantling block (4) is provided with a funnel hole inside and is in contact with the top of the circulation tube (5).

8. The liquid oxygen liquid air separation device according to claim 3, characterized in that: The pore size of the first filter screen (11) is larger than the pore size of the second filter screen (14).

9. A liquid oxygen liquid air separation device according to claim 2, characterized in that: The water in the water storage tank (6) covers the top of the excessive air hole (7).

10. A liquid oxygen liquid air separation device according to claim 3, characterized in that: The interior of the adsorption cylinder (13) is filled with activated carbon.

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