CN219954621U - Helium compression device for hydrogen liquefaction - Google Patents
Helium compression device for hydrogen liquefaction Download PDFInfo
- Publication number
- CN219954621U CN219954621U CN202320340916.6U CN202320340916U CN219954621U CN 219954621 U CN219954621 U CN 219954621U CN 202320340916 U CN202320340916 U CN 202320340916U CN 219954621 U CN219954621 U CN 219954621U
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- China
- Prior art keywords
- fixedly connected
- ring
- helium
- compression device
- sealing
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- 239000001307 helium Substances 0.000 title claims abstract description 30
- 229910052734 helium Inorganic materials 0.000 title claims abstract description 30
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000001257 hydrogen Substances 0.000 title claims abstract description 23
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 23
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 230000006835 compression Effects 0.000 title claims abstract description 16
- 238000007906 compression Methods 0.000 title claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 239000007789 gas Substances 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model provides a helium gas compression device for hydrogen liquefaction, which relates to the technical field of gas compression and comprises a compressor main body, wherein a gas inlet and a gas outlet of the compressor main body are fixedly connected with screw pipes, the outer surfaces of the screw pipes are in threaded connection with nuts, the interiors of the nuts are in rotary connection with guide pipes, the outer surfaces of the nuts are sleeved with sealing sleeves, the outer surfaces of the sealing sleeves are provided with hole grooves, the interiors of the hole grooves are provided with positioning balls, the outer surfaces of the screw pipes are fixedly connected with convex rings, and the outer surfaces of the convex rings are provided with positioning grooves; the pressure sensor can monitor the change of the air pressure, so that a worker can timely find the leakage of helium, take measures in time, reduce economic loss, realize double guarantee, effectively prevent the leakage of helium, position a limiting sleeve through a limiting plate, avoid the problem that a sealing sleeve falls off due to equipment vibration, and have simple and reliable structure and simple and convenient later disassembly and assembly.
Description
Technical Field
The utility model relates to the technical field of gas compression, in particular to a helium gas compression device for liquefying hydrogen.
Background
The density of the normal-pressure liquid hydrogen is 845 times of that of the gaseous hydrogen, and compared with the gaseous high-pressure hydrogen, the storage and transportation cost of the low-temperature liquid hydrogen is greatly reduced, so that the low-pressure liquid hydrogen becomes a main means for large-scale hydrogen transportation. However, the critical temperature and the liquefaction temperature of hydrogen are low, the hydrogen needs to be cooled below a certain temperature, and then throttling expansion is performed to generate a cold effect. The existing hydrogen liquefying method mainly comprises a hydrogen expansion refrigerating cycle precooled by liquid nitrogen, a helium expansion refrigerating cycle precooled by liquid nitrogen and the like, wherein the helium expansion refrigerating cycle needs to use a helium compression device.
The existing helium compression device for liquefying hydrogen is usually connected with a compressor through a screw cap, but because the molecular weight of the helium is very small, the helium is very easy to leak from the connection part of the screw cap, is colorless and odorless, and is slightly leaked and not easy to find, and because the helium belongs to rare gas, the helium is expensive, so that economic loss is easily caused carelessly.
Disclosure of Invention
The utility model aims to provide a helium gas compression device for hydrogen liquefaction, which aims to solve the problem that the helium gas compression device for hydrogen liquefaction in the prior art is not easy to find when helium gas leaks, so that economic loss is caused.
In order to achieve the above purpose, the utility model adopts the following technical scheme: helium compression device for hydrogen liquefaction, including the compressor main part, the equal fixedly connected with screwed pipe of air inlet and the gas outlet of compressor main part, the surface threaded connection of screwed pipe has the nut, the inside rotation of nut is connected with the pipe, the surface of nut has cup jointed the seal cover, the first sealing ring of one end fixedly connected with of seal cover, the inner wall fixedly connected with second sealing ring of seal cover, the hole groove has been seted up to the surface of seal cover, the inside of hole groove is provided with the locating ball, the surface fixedly connected with bulge loop of screwed pipe, the constant head tank has been seted up to the surface of bulge loop, the inside of locating ball joint at the constant head tank, the surface sliding connection of seal cover has the stop collar, the inner wall of seal cover is provided with pressure sensor.
According to the further technical scheme, one end of the limiting sleeve is fixedly connected with a limiting plate, a spring is arranged between the limiting plate and the first sealing ring, and the elastic force of the spring is used for positioning the limiting sleeve so as to prevent the limiting sleeve from sliding randomly.
The beneficial effects of the utility model are as follows:
1. after the pipe passes through the nut to be connected on the screwed pipe, the seal cover overlaps the surface at the nut, and one side of first sealing ring and nut is contradicted and is sealed, and one side of second sealing ring and bulge loop is contradicted and is sealed to if nut and screwed pipe junction is if not firm, under the circumstances that appears leaking, will get into helium between seal cover and nut, the screwed pipe, lead to the atmospheric pressure to rise, pressure sensor just can monitor the change of giving vent to anger the pressure, make the staff can in time discover that helium leaks, in time take measures, just can reduce economic loss.
2. The seal sleeve is sleeved on the surfaces of the screw pipe and the screw cap, and the sealing effect of the first sealing ring and the second sealing ring is added, so that the double-guarantee effect can be achieved, and the leakage of helium can be effectively prevented.
3. The spring is positioned the stop collar through the limiting plate to the vibrations that produce in the compressor working process can't make the stop collar slide, have guaranteed that the stop collar can overlap the position at the locating ball all the time, guarantee that the locating ball drops in not following the constant head tank, thereby avoided equipment vibrations to lead to the problem that the seal cover drops, simple structure is reliable, and the later stage dismouting is also simple and convenient.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the present utility model.
Fig. 2 is a schematic structural view of a compressor body according to an embodiment of the present utility model.
Fig. 3 is a schematic cross-sectional view of a nut and a conduit in an embodiment of the utility model.
Figure 4 is a schematic cross-sectional view of a seal cartridge and stop collar in accordance with an embodiment of the present utility model.
Figure 5 is a schematic illustration of the structure of the sealing sleeve and the nut in an embodiment of the utility model.
In the figure: 1-compressor main body, 2-solenoid, 21-bulge loop, 22-constant head tank, 3-nut, 31-constant head tank, 4-pipe, 41-first spacing ring, 42-go-between, 43-second spacing ring, 5-seal cover, 51-first sealing ring, 52-hole groove, 53-constant head, 54-second sealing ring, 6-spacing sleeve, 61-spacing plate, 62-spring, 7-pressure sensor.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings.
As shown in fig. 1-5, a helium compression device for liquefying hydrogen comprises a compressor main body 1, wherein a screw tube 2 is fixedly connected with an air inlet and an air outlet of the compressor main body 1, a screw cap 3 is connected with the outer surface of the screw tube 2 in a threaded manner, a guide tube 4 is connected in the screw cap 3 in a rotating manner, one end of the guide tube 4 is fixedly connected with a first limiting ring 41, one side of the first limiting ring 41 is fixedly connected with a connecting ring 42, one side of the connecting ring 42 away from the first limiting ring 41 is fixedly connected with a second limiting ring 43, one side of the screw cap 3 is fixedly connected with a positioning ring 31, the positioning ring 31 is connected with the outer surface of the connecting ring 42 in a rotating manner, the rotating connection of the guide tube 4 and the screw cap 3 is realized, a sealing sleeve 5 is sleeved on the outer surface of the screw cap 3, one end of the sealing sleeve 5 is fixedly connected with a first sealing ring 51, the first sealing ring 51 is in contact with one side of the screw cap 3, and sealing is realized, the inner wall of the sealing sleeve 5 is fixedly connected with a second sealing ring 54, the outer surface of the sealing sleeve 5 is provided with a hole groove 52, the inside of the hole groove 52 is provided with a positioning ball 53, the hole groove 52 penetrates through the sealing sleeve 5, the positioning ball 53 can move in the hole groove 52, the outer surface of the spiral tube 2 is fixedly connected with a convex ring 21, one side of the second sealing ring 54 is abutted against one side of the convex ring 21 to realize sealing, the outer surface of the convex ring 21 is provided with a positioning groove 22, the positioning ball 53 is clamped in the positioning groove 22, the outer surface of the sealing sleeve 5 is slidingly connected with a limit sleeve 6, the sealing sleeve 5 is sleeved on the surface of the convex ring 21, when the positioning ball 53 corresponds to the position of the positioning groove 22, the sliding limit sleeve 6 is sleeved on the positioning ball 53 to fix the positioning ball 53, a part of the through hole groove 52 of the positioning ball 53 is clamped in the inside of the positioning groove 22, thereby fixing the sealing sleeve 5, the inner wall of the sealing sleeve 5 is provided with a pressure sensor 7, the pressure sensor 7 may also be a barometer for monitoring the air pressure.
In this embodiment, the guide tube 4 is screwed on the screw tube 2 through the nut 3, then the sealing sleeve 5 is moved towards the direction of the convex ring 21, the positioning ball 53 slides in the hole groove 52 after contacting with the convex ring 21, when the positioning ball 53 corresponds to the position of the positioning groove 22, the positioning ball 53 is pushed to move towards the positioning groove 22 by the sliding limiting sleeve 6, when the limiting sleeve 6 is sleeved at the position of the positioning ball 53, the positioning ball 53 is fixed, the positioning ball 53 is clamped in the positioning groove 22, thereby fixing the sealing sleeve 5, at the moment, the first sealing ring 51 is in contact with one side of the nut 3 and is in contact with one side of the convex ring 21, so that helium enters the compressor main body 1 through the guide tube 4 and is discharged through the guide tube 4 on the air outlet, when leakage occurs at the joint, the helium leaks into the sealing sleeve 5, the air pressure in the sealing sleeve 5 is raised, the pressure sensor 7 can monitor the air pressure rise, so that a worker can timely find the leakage of the helium, and take timely measures, and reduce economic loss.
Specifically, one end fixedly connected with limiting plate 61 of stop collar 6 is provided with spring 62 between limiting plate 61 and the first sealing ring 51, and the resilience force of spring 62 exerts the pulling force to limiting plate 61 to avoid stop collar 6 to slide at will, make stop collar 6 can overlap the position at location ball 53 all the time.
Claims (5)
1. Helium gas compression device for hydrogen liquefaction, characterized by, including compressor main part (1), the equal fixedly connected with screwed pipe (2) of air inlet and the gas outlet of compressor main part (1), the surface threaded connection of screwed pipe (2) has nut (3), the inside rotation of nut (3) is connected with pipe (4), seal cover (5) have been cup jointed to the surface of nut (3), hole groove (52) have been seted up to the surface of seal cover (5), the inside of hole groove (52) is provided with locating ball (53), the surface fixedly connected with bulge loop (21) of screwed pipe (2), constant head tank (22) have been seted up to the surface of bulge loop (21), locating ball (53) joint is in the inside of constant head tank (22), the surface sliding connection of seal cover (5) has stop collar (6), the inner wall of seal cover (5) is provided with pressure sensor (7).
2. Helium gas compression device for liquefying hydrogen according to claim 1, characterized in that one end of the sealing sleeve (5) is fixedly connected with a first sealing ring (51), and the inner wall of the sealing sleeve (5) is fixedly connected with a second sealing ring (54).
3. The helium gas compression device for liquefying hydrogen gas according to claim 2, wherein one end of the limit sleeve (6) is fixedly connected with a limit plate (61), and a spring (62) is arranged between the limit plate (61) and the first sealing ring (51).
4. The helium gas compression device for hydrogen liquefaction according to claim 1, wherein one end of the guide pipe (4) is fixedly connected with a first limiting ring (41), one side of the first limiting ring (41) is fixedly connected with a connecting ring (42), and one side of the connecting ring (42) away from the first limiting ring (41) is fixedly connected with a second limiting ring (43).
5. The helium compressor for liquefying hydrogen according to claim 4, wherein one side of the nut (3) is fixedly connected with a positioning ring (31), and the positioning ring (31) is rotatably connected to the outer surface of the connecting ring (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320340916.6U CN219954621U (en) | 2023-02-28 | 2023-02-28 | Helium compression device for hydrogen liquefaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320340916.6U CN219954621U (en) | 2023-02-28 | 2023-02-28 | Helium compression device for hydrogen liquefaction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219954621U true CN219954621U (en) | 2023-11-03 |
Family
ID=88547013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320340916.6U Active CN219954621U (en) | 2023-02-28 | 2023-02-28 | Helium compression device for hydrogen liquefaction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219954621U (en) |
-
2023
- 2023-02-28 CN CN202320340916.6U patent/CN219954621U/en active Active
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