CN215061238U - Self-sealing type gas transmission device for portable helium storage tank of nuclear power plant - Google Patents
Self-sealing type gas transmission device for portable helium storage tank of nuclear power plant Download PDFInfo
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- CN215061238U CN215061238U CN202120633538.1U CN202120633538U CN215061238U CN 215061238 U CN215061238 U CN 215061238U CN 202120633538 U CN202120633538 U CN 202120633538U CN 215061238 U CN215061238 U CN 215061238U
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Abstract
The utility model relates to a portable helium holding vessel of nuclear power plant is with self-sealing formula gas delivery device, including the gas holder body, the cover, stopper and air nozzle, cover upper portion and lower part are equipped with jut and external screw thread respectively, stopper upper portion and lower part are equipped with external screw thread and jut respectively, be equipped with the through-hole on its inside, the external screw thread of stopper and the female connection in lower passage hole, air nozzle upper portion, be equipped with spacing protruding on bottom and the inside respectively, seal base and gas transmission passageway, the last seal gasket that is equipped with of seal base, the air nozzle passes the through-hole of stopper and the lower passage hole of cover in proper order, the preceding tip and the spacing protruding cover top and the lower passage hole that are located respectively of air nozzle, spacing protruding is connected with the stopper through the spring, the seal base laminating is on the jut of stopper. The utility model discloses effectively solve current helium bottle and take place to reveal easily, cause the waste, have the risk of explosion even, leakproofness, reliability and the relatively poor scheduling problem of security.
Description
Technical Field
The utility model relates to a helium storage tank technical field especially relates to a portable helium storage tank of nuclear power plant is with self-sealing formula gas transmission device.
Background
At present, a helium leakage detection technology is generally used in the technical field of nuclear power plants for detecting leakage of a sealing system, the leakage condition of a negative pressure boundary can be effectively detected by the helium leakage detection work of the nuclear power plants, however, a spray gun used for the helium leakage detection of the nuclear power plants is a spray gun which is not independently designed, the spray gun needs to be connected with a long helium conduit and then is supplied with gas by a helium tank, and most industrial helium tanks are large gas tanks with the specification of 50L 15.5 Mpa.
At present, the helium tank is often required to be carried to remove in the in-process of field usage, test or transportation, and the helium tank is heavier, uses very inconveniently to easily cause not hard uply to the bottleneck of helium tank and helium pipe junction, and the leakproofness is relatively poor, leads to the helium in the helium tank to reveal, causes the waste, has the risk of explosion even, and the security and the reliability of helium tank are relatively poor, can't satisfy nuclear power plant's user demand.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the not enough of prior art and provide a portable helium gas storage tank of nuclear power plant is with self-sealing formula gas transmission device, through the cooperation design of gas holder body, cover, stopper and air nozzle, effectively solve current helium gas bottle and take place to reveal easily, cause the waste, have the risk of explosion even, leakproofness, reliability and the relatively poor scheduling problem of security.
The utility model discloses the technical scheme who adopts:
a self-sealing gas transmission device for a portable helium storage tank of a nuclear power plant comprises a gas storage tank body, a tank cover, a limiting block and an air nozzle, wherein the upper part and the lower part of the tank cover are respectively provided with a protruding part and an external thread, the internal part of the tank cover is provided with an upper channel hole and a lower channel hole which are communicated with each other, the lower channel hole is provided with an internal thread, the external thread of the tank cover is connected with the internal thread of the bottle mouth of the gas storage tank body, the upper part and the lower part of the limiting block are respectively provided with an external thread and a protruding part, the internal part of the limiting block is provided with a through hole, the external thread of the limiting block is connected with the internal thread of the lower channel hole, the upper part, the bottom and the internal part of the air nozzle are respectively provided with a limiting protrusion, a sealing base and a gas transmission channel, the sealing gasket is arranged on the sealing base, the gas transmission channel is respectively positioned at the lower part and the front end part of the air nozzle, and the air nozzle sequentially passes through hole of the limiting block and the lower channel hole and the tank cover, the front end part and the limiting protrusion of the air nozzle are respectively positioned above the tank cover and in the lower channel hole, the limiting protrusion is connected with the limiting block through a spring, the spring is positioned in the lower channel hole and sleeved on the air nozzle, and the sealing base on the bottom of the air nozzle is attached to the protrusion part of the limiting block through a sealing gasket.
Furthermore, the gas storage tank body is made of light materials.
Furthermore, the protruding part of the tank cover is provided with an anti-skid convex edge.
Furthermore, the protruding part of the limiting block is of a hexagonal structure.
Furthermore, the bottom of the air nozzle is in threaded connection with the sealing base.
Furthermore, the diameter of the limiting protrusion is larger than that of the upper channel hole, and the limiting protrusion is matched with the lower channel hole.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses simple structure, convenient to use through the cooperation design of gas holder body, cover, stopper and air nozzle, effectively solves current helium bottle and takes place to reveal easily, causes the waste, has the risk of explosion even, and leakproofness, reliability and the relatively poor scheduling problem of security can't satisfy nuclear power plant's user demand.
2. The gas holder body adopts light material to make, and it is convenient to remove, and the practicality is stronger.
3. The utility model discloses the leakproofness of gas holder body is better, and this internal helium of gas holder can not take place the loss, reduces the consumption of helium, effective energy saving and cost.
4. Loosen the air nozzle, under the effect of the pressure of this internal gas of gas holder and spring, spacing protruding on the air nozzle is at lower passage hole rebound, until removing to initial position, the inlet port of air nozzle lower part is sheltered from by the through-hole of stopper, and sealing base is under the effect of gas holder gas pressure and spring, compress tightly seal gasket, the through-hole to the stopper carries out the sealing effect, play the effect of self sealedly, guarantee the leakproofness of being connected between sealing base and the stopper, prevent that the helium in the gas holder from revealing, cause the waste, there is the risk of explosion even, effectively improve its leakproofness, reliability and security.
Drawings
FIG. 1 is a schematic view of the overall structure of the gas tank body of the present invention and a partial enlarged view thereof;
FIG. 2 is a cross-sectional view of the gas tank body of the present invention;
FIG. 3 is a schematic view of the structure of the can lid of the present invention;
fig. 4 is a cross-sectional view of the present invention;
FIG. 5 is a schematic structural view of the stopper of the present invention;
FIG. 6 is a schematic structural view of the air nozzle of the present invention;
in the figure: 1. a gas storage tank body; 2. a gas pressure gauge; 3. a can lid; 4. an air nozzle; 5. a gas transmission channel; 6. an upper channel hole; 7. a limiting protrusion; 8. a lower channel hole; 9. a limiting block; 10. sealing the base; 11. a through hole; 12. an air inlet; 13. an air outlet; 14. a spring.
Detailed Description
In order to better understand the technical content of the present invention, the following embodiments are provided, and the present invention is further described with reference to the accompanying drawings.
Referring to fig. 1 to 6, the utility model provides a self-sealing gas transmission device for a portable helium storage tank of a nuclear power plant, which comprises a gas storage tank body 1, a tank cover 3, a limit block 9 and an air nozzle 4, wherein the gas storage tank is used for storing helium, a gas pressure gauge 2 is arranged on the gas storage tank, the gas pressure value in the gas storage tank is displayed through the gas pressure gauge 2, the upper part and the lower part of the tank cover 3 are respectively provided with a bulge part and an external thread, the diameter of the bulge part of the tank cover 3 is larger than the diameter of the mouth of the gas storage tank body 1, an upper channel hole 6 and a lower channel hole 8 are arranged inside the tank cover 3 and are communicated with each other, the diameter of the upper channel hole 6 is smaller than the diameter of the lower channel hole 8, the lower channel hole 8 is provided with an internal thread, the external thread of the tank cover 3 is connected with the internal thread of the mouth of the gas storage tank body, the tank cover 3 is convenient to be installed or detached on the gas storage tank body 1, the upper part and the lower part of the limit block 9 are respectively provided with the external thread and the bulge part, the inside of the limit block 9 is provided with a through hole 11, the external thread of the limit block 9 is connected with the internal thread of the lower channel hole 8, so that the installation or the disassembly between the limit block 9 and the lower channel hole 8 is convenient, the front end part of the air nozzle 4 is in a taper structure, the upper part, the bottom and the inside of the air nozzle 4 are respectively provided with a limit bulge 7, a sealing base 10 and a gas transmission channel 5, the limit bulge 7 can slide up and down in the lower channel hole 8 of the tank cover 3, one side of the sealing base 10 close to the limit block 9 is provided with a sealing gasket, an air inlet hole 12 and an air outlet hole 13 of the gas transmission channel 5 are respectively positioned at the lower part and the front end part of the air nozzle 4, helium in the air storage tank enters the gas transmission channel 5 from the air inlet hole 12 and is then discharged from the air outlet hole 13, the air nozzle 4 sequentially passes through the through hole 11 of the limit block 9, the lower channel hole 8 and the lower channel hole 8 of the tank cover 3 and the lower channel hole 8, the front end part and the limit bulge 7 of the air nozzle 4 are respectively positioned above and in the lower channel hole 8 of the tank cover 3, the air inlet 12 of gas transmission channel 5 is located the through-hole 11 of stopper 9, spacing arch 7 is connected with stopper 9 through spring 14, spring 14 is located lower channel hole 8 and overlaps and establish on air nozzle 4, spring 14 accessible spacing arch 7 drives air nozzle 4 and resumes to initial position, sealing base 10 on the air nozzle 4 bottom is through the laminating of seal gasket on stopper 9's jut surface, utilize seal gasket to carry out the sealing effect to stopper 9's through-hole 11, prevent that the helium in the gas holder from revealing, cause the waste, there is the risk of explosion even, effectively improve its leakproofness, reliability and security.
Specifically, the gas storage tank body 1 is made of light materials and is convenient to carry.
Specifically, the protruding portion of the can lid 3 is provided with an anti-slip ridge. The friction force for screwing in or screwing out can be effectively increased, the structure is simple, and the operation is convenient and fast.
Specifically, the protruding portion of the stopper 9 is of a hexagonal structure. The limiting block 9 is conveniently screwed into the lower channel hole 8 of the tank cover 3, so that the fastening connection is facilitated.
Specifically, the bottom of the air nozzle 4 is connected with the sealing base 10 in a threaded manner. Is favorable for installation and disassembly, and is convenient and quick to use.
Specifically, the diameter of the limiting protrusion 7 is larger than that of the upper channel hole 6, and the limiting protrusion 7 is matched with the lower channel hole 8. The limiting protrusion 7 is limited in the lower channel hole 8 and can slide up and down in the lower channel hole 8, and the diameter of the limiting protrusion 7 is larger than that of the upper channel hole 6, so that the limiting protrusion 7 is effectively prevented from entering the upper channel hole 6 and cannot limit the upper channel hole.
The utility model discloses a theory of operation does:
when the gas storage tank is used, the gas nozzle 4 is pressed downwards, the limiting protrusion 7 at the upper part of the gas nozzle 4 overcomes the elasticity of the spring 14 and moves downwards along the lower channel hole 8, the lower part of the gas nozzle 4 moves downwards (slides axially) along the through hole 11 of the limiting block 9, so that the sealing base 10 arranged at the bottom of the gas nozzle 4 is gradually far away from the limiting block 9 until the gas inlet hole 12 at the lower part of the gas nozzle 4 moves to the inside of the gas storage tank, and helium in the gas storage tank can enter the gas transmission channel 5 from the gas inlet hole 12 and then is ejected from the gas outlet hole 13 at the front end part of the gas nozzle 4; when loosening air nozzle 4 back, under the effect of the pressure of gas in gas holder body 1 and spring 14, spacing 7 on the air nozzle 4 is at 8 rebound of lower passage hole, until removing to initial position, inlet port 12 of air nozzle 4 lower part is sheltered from by through-hole 11 of stopper 9, and sealing base 10 is under gas holder gas pressure and spring 14's effect, compress tightly seal gasket, seal the effect to through-hole 11 of stopper 9, play the effect of self sealss, guarantee the leakproofness of being connected between sealing base 10 and the stopper 9, prevent the helium in the gas holder and reveal, cause extravagantly, there is the risk of explosion even, effectively improve its leakproofness, reliability and security.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a portable helium storage tank of nuclear power plant is with self-sealing formula gas transmission device which characterized in that: the gas storage tank comprises a gas storage tank body, a tank cover, a limiting block and a gas nozzle, wherein the upper part and the lower part of the tank cover are respectively provided with a protruding part and an external thread, the upper channel hole and the lower channel hole are arranged in the gas storage tank body and are communicated with each other, the lower channel hole is provided with an internal thread, the external thread of the tank cover is connected with the internal thread of a bottle opening of the gas storage tank body, the upper part and the lower part of the limiting block are respectively provided with an external thread and a protruding part, the internal thread of the limiting block is connected with the internal thread of the lower channel hole, the upper part, the bottom and the internal part of the gas nozzle are respectively provided with a limiting protrusion, a sealing base and a gas transmission channel, the sealing base is provided with a sealing gasket, an air inlet hole and an air outlet hole of the gas transmission channel are respectively positioned at the lower part and the front end part of the gas nozzle, the gas nozzle sequentially passes through the through hole of the limiting block, the lower channel hole and the lower channel hole of the tank cover, and the front end part and the limiting protrusion of the gas nozzle are respectively positioned above the tank cover and in the lower channel hole, the limiting protrusion is connected with the limiting block through a spring, the spring is located in the lower channel hole and sleeved on the air nozzle, and the sealing base on the bottom of the air nozzle is attached to the protrusion part of the limiting block through a sealing gasket.
2. The self-sealing gas transfer device for the portable helium storage tank of the nuclear power plant as claimed in claim 1, wherein: the gas storage tank body is made of light materials.
3. The self-sealing gas transfer device for the portable helium storage tank of the nuclear power plant as claimed in claim 1, wherein: the protruding part of the tank cover is provided with an anti-skid convex edge.
4. The self-sealing gas transfer device for the portable helium storage tank of the nuclear power plant as claimed in claim 1, wherein: the protruding part of the limiting block is of a hexagonal structure.
5. The self-sealing gas transfer device for the portable helium storage tank of the nuclear power plant as claimed in claim 1, wherein: the bottom of the air nozzle is in threaded connection with the sealing base.
6. The self-sealing gas transfer device for the portable helium storage tank of the nuclear power plant as claimed in claim 1, wherein: the diameter of the limiting protrusion is larger than that of the upper channel hole, and the limiting protrusion is matched with the lower channel hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120633538.1U CN215061238U (en) | 2021-03-29 | 2021-03-29 | Self-sealing type gas transmission device for portable helium storage tank of nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120633538.1U CN215061238U (en) | 2021-03-29 | 2021-03-29 | Self-sealing type gas transmission device for portable helium storage tank of nuclear power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215061238U true CN215061238U (en) | 2021-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120633538.1U Active CN215061238U (en) | 2021-03-29 | 2021-03-29 | Self-sealing type gas transmission device for portable helium storage tank of nuclear power plant |
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| Country | Link |
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| CN (1) | CN215061238U (en) |
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2021
- 2021-03-29 CN CN202120633538.1U patent/CN215061238U/en active Active
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