CN212251637U

CN212251637U - Liquid inlet pipeline for liquid nitrogen storage tank

Info

Publication number: CN212251637U
Application number: CN202020177562.4U
Authority: CN
Inventors: 邵鸿智; 洪宝庆
Original assignee: Zhuhai Yingde Gas Co ltd
Current assignee: Zhuhai Yingde Gas Co ltd
Priority date: 2020-02-17
Filing date: 2020-02-17
Publication date: 2020-12-29
Anticipated expiration: 2030-02-17

Abstract

The utility model discloses a liquid inlet pipeline for a liquid nitrogen storage tank, which comprises a liquid inlet pipe and a liquid storage tank, wherein a fixed block is welded inside the liquid inlet pipe, a moving block is arranged on the left side of the fixed block, a welding block is arranged on the left side of the moving block, a nut is sleeved on the outer side of the left end of the liquid inlet pipe, the bottom end of the left side of the liquid inlet pipe is welded with a rotating shaft, the bottom end of the nut is provided with a fixed box, a liquid outlet pipe is arranged at the top end of the liquid storage tank, the top end of the liquid outlet pipe is communicated with the bottom end of the first sealing ring, install the rubber pad around the second sealing washer outside, the utility model discloses avoid the pipeline outside because the temperature crosses low production cold frost excessively, make the user rotate the pipeline, can seal liquid nitrogen in the storage tank, also enable the difficult discharge of liquefied liquid nitrogen in the storage tank from the pipeline for the flange can be linked together the feed liquor pipeline of all directions.

Description

Liquid inlet pipeline for liquid nitrogen storage tank

Technical Field

The utility model relates to a feed liquor pipeline technical field of liquid nitrogen specifically is a feed liquor pipeline for liquid nitrogen storage tank.

Background

In industrial production, the method of fractionating compressed liquid air is used for obtaining liquid nitrogen which can be used as a deep refrigerant, a liquid inlet pipeline of the liquid nitrogen is needed in the use process of the liquid nitrogen, because the temperature of the liquid nitrogen is very low, cold frost can be generated on the pipeline, a user can be frosted when touching the pipeline, potential safety hazards can be generated when other liquefied gases enter a liquid nitrogen storage tank through the pipeline, and a large liquid nitrogen transfer system container is large and is inconvenient to move and connect with an inlet of the liquid nitrogen, so that a liquid inlet control system which is safe and easy to operate is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid inlet pipe for liquid nitrogen storage tank to the user who proposes among the above-mentioned background art of solution touches the pipeline and can produce the frostbite to skin, gets into other liquefied gas realizations through the pipeline and produce the potential safety hazard in the liquid nitrogen storage tank jar, the great inconvenient problem of connecting the inlet port of liquid nitrogen of removing of large-scale liquid nitrogen transfer system container in addition.

In order to achieve the above object, the utility model provides a following technical scheme: a liquid inlet pipeline for a liquid nitrogen storage tank comprises a liquid inlet pipe and a liquid storage tank, wherein a flange is welded at the input end of the liquid inlet pipe, a fixed block is welded inside the liquid inlet pipe, a first through groove is formed in the middle of the fixed block, a moving block is arranged on the left side of the fixed block, a touch block is welded at the right end of the moving block, grooves are formed in the upper end and the lower end of the touch block, a welding block is arranged on the left side of the moving block, the upper end and the lower end of the welding block are fixedly welded to the inner wall of the liquid inlet pipe, a second through groove is uniformly formed in the middle of the welding block, a nut is sleeved on the outer side of the left end of the liquid inlet pipe, a rotating shaft is welded at the bottom end of the left side of the liquid inlet pipe, a first sealing ring is welded at, and the drain pipe is inserted and established inside the fixed box, the top of drain pipe is linked together with the bottom of first sealing washer, the bottom of nut is provided with the second sealing washer, and the second sealing washer cover is established in the flange outside, install the rubber pad around the second sealing washer outside, and the top of rubber pad and the bottom welded fastening of nut.

Preferably, the liquid inlet pipe comprises a liquid pipe inner wall, pearl sand, red pine skid and sponge, wherein the pearl sand is arranged inside the liquid pipe inner wall, the red pine skid is arranged on the pearl sand, and the sponge is arranged outside the red pine skid.

Preferably, the outer side of the sponge is provided with a plastic pad, and the plastic pad is positioned inside the inner wall of the liquid pipe.

Preferably, a spring is arranged inside the moving block, one end of the spring is connected with the inner wall of the moving block, and the other end of the spring is welded and fixed with the right end of the welding block.

Preferably, the outer side of the left end of the liquid inlet pipe is provided with an external thread, the inner wall of the nut is provided with an internal thread, and the liquid inlet pipe is connected with the nut through a thread structure.

Preferably, the outer side of the left end of the liquid outlet pipe is provided with an external thread, the inner wall of the bottom end of the fixed box is provided with an internal thread, and the liquid outlet pipe is connected with the fixed box through a thread structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model avoids the cold frost generated by the low temperature outside the pipeline, so that the user can rotate the pipeline, seal the liquid nitrogen in the storage tank, and ensure that the liquefied liquid nitrogen in the storage tank is not easy to be discharged from the pipeline, so that the flange can communicate with the liquid inlet pipeline in each direction;

1. the utility model discloses a through being provided with liquid pipe inner wall, pearly-lustre sand, red pine lumber skid and sponge, when liquid nitrogen entered into the feed liquor pipe from the flange, liquid nitrogen when passing through feed liquor pipe and liquid pipe inner wall contact, because the liquid nitrogen temperature is low excessively can outwards give off the temperature, can make the user obtain the liquid nitrogen that accords with the standard through the liquid pipe inner wall, avoid the pipeline outside because the temperature is low excessively produces cold frost, make the user can rotate the pipeline, can not cause the frostbite to user's both hands, reduced the volatilizing of nitrogen gas;

2. the utility model discloses a through being provided with movable block and conflict piece, when the liquid nitrogen passes through first logical groove, the liquid nitrogen can be with conflict piece through spring pressure left movement, make the liquid nitrogen flow out from recess and second logical groove, when there is not liquid nitrogen to flow in the feed liquor pipe, the block of contradicting resets through the resilience force of spring, can seal the liquid nitrogen in the storage tank, there is not other liquefied gas to get into, cause the pollution to the liquid nitrogen in the storage tank, also can make the liquefied liquid nitrogen in the storage tank difficult discharge from the pipeline, do not need user operation, implement effectually;

3. the utility model discloses a be provided with nut and fixed case, the user is linked together the drain pipe with the feed liquor pipe through helicitic texture, rotates the nut and moves down and contradicts with the fixed case top, can adjust the direction of feed liquor pipe through the rotation axis, makes the user need not remove the position that the feed liquor pipe just can be aimed at to the storage tank jar for the feed liquor pipe can be linked together the feed liquor pipeline of all directions, easy operation, and convenient to use user uses.

Drawings

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

fig. 2 is an enlarged schematic view of the structure 1 of the present invention;

FIG. 3 is an enlarged view of A in FIG. 1;

fig. 4 is an enlarged schematic view of the structure B in fig. 1.

In the figure: 1. a liquid inlet pipe; 101. the inner wall of the liquid pipe; 102. pearly-lustre sand; 103. red pine skid; 104. a sponge; 2. a flange; 3. a liquid outlet pipe; 4. a liquid storage tank; 5. a fixed block; 6. a first through groove; 7. a moving block; 8. a contact block; 9. a groove; 10. welding the blocks; 11. a second through groove; 12. a nut; 13. a fixed box; 14. a rotating shaft; 15. a first seal ring; 16. a second seal ring; 17. and (7) a rubber pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides an embodiment:

a liquid inlet pipeline for a liquid nitrogen storage tank comprises a liquid inlet pipe 1 and a liquid storage tank 4, wherein a flange 2 is welded at the input end of the liquid inlet pipe 1, the liquid inlet pipe 1 comprises a liquid pipe inner wall 101, pearlife 102, Korean pine skid 103 and sponge 104, the pearlife 102 is arranged inside the liquid pipe inner wall 101, the Korean pine skid 103 is arranged on the pearlife 102, the sponge 104 is arranged outside the Korean pine skid 103, the pearlife 102 can insulate the liquid pipe inner wall 101, the Korean pine skid 103 can reduce the formation of cold frost, the sponge 104 can absorb water mist, a plastic pad is arranged outside the sponge 104 and is positioned inside the liquid pipe inner wall 101, the plastic pad can isolate the water mist and is used for holding the liquid inlet pipe 1 and is not easy to cause hand frostbite, a fixing block 5 is welded inside the liquid inlet pipe 1, a first through groove 6 is formed in the middle of the fixing block 5, and a moving block 7 is arranged on the left side of the fixing, the right end of the moving block 7 is welded with a touch block 8, the upper end and the lower end of the touch block 8 are provided with grooves 9, the left side of the moving block 7 is provided with a welding block 10, the upper end and the lower end of the welding block 10 are welded and fixed with the inner wall of the liquid inlet pipe 1, a spring is arranged inside the moving block 7, one end of the spring is connected with the inner wall of the moving block 7, the other end of the spring is welded and fixed with the right end of the welding block 10, the spring can drive the moving block 7 and the touch block 8 to move left and right, the touch block 8 can reset through the resilience force of the spring, the device can be sealed, the middle part of the welding block 10 is uniformly provided with a second through groove 11, the outer side of the left end of the liquid inlet pipe 1 is sleeved with a nut 12, the outer side of the left end of the liquid inlet pipe 1 is provided with external threads, the nut 12 is sealed by the contact between the second sealing ring 16 and the rubber pad 17 and the fixed box 13, so that the nut 12 can be fixed, the rotating shaft 14 is welded at the bottom end of the left side of the liquid inlet pipe 1, the first sealing ring 15 is welded at the bottom end of the rotating shaft 14, the fixed box 13 is arranged at the bottom end of the nut 12, the fixed box 13 is sleeved outside the rotating shaft 14, the liquid outlet pipe 3 is arranged at the top end of the liquid storage tank 4, the liquid outlet pipe 3 is inserted inside the fixed box 13, the outer side of the left end of the liquid outlet pipe 3 is provided with an external thread, the inner wall of the bottom end of the fixed box 13 is provided with an internal thread, the liquid outlet pipe 3 is connected with the fixed box 13 through a thread structure, the liquid outlet pipe 3 is connected with the rotating shaft 14 through the thread structure, the direction of the liquid inlet pipe 1 can be adjusted, so that the liquid, the bottom end of the nut 12 is provided with a second sealing ring 16, the second sealing ring 16 is sleeved on the outer side of the flange 2, a rubber pad 17 is arranged around the outer side of the second sealing ring 16, and the top end of the rubber pad 17 is welded and fixed with the bottom end of the nut 12.

The working principle is as follows: firstly, the user aims at the 3 tops of drain pipe with flange 2 bottom, through the helicitic texture between drain pipe 3 and the fixed box 13, be connected drain pipe 3 with first sealing washer 15, seal between first sealing washer 15 and drain pipe 3 through rotation axis 14, swivel nut 12 moves down, make the sealing washer of nut 12 bottom inconsistent with fixed box 13 bottom, and then seal the top of nut 12 bottom and fixed box 13 through second sealing washer 16, rethread rubber pad 17 increases the friction between nut 12 and the fixed box 13, fix nut 12, connect flange 2 on the liquid nitrogen pumpdown pump again, accomplish and prepare the work.

When the hydraulic pump starts to work, liquid nitrogen enters the liquid inlet pipe 1 from the flange 2, when the liquid nitrogen passes through the liquid inlet pipe 1, the liquid nitrogen passes through the first through groove 6, the spring is driven by the pressure of the liquid nitrogen to drive the moving block 7 and the abutting block 8 to move, the liquid nitrogen enters the moving block 7 from the groove 9 and then enters the liquid outlet pipe 3 through the second through groove 11, and finally enters the liquid nitrogen storage tank, when the liquid nitrogen flows in the liquid inlet pipe 1 for a long time, the temperature of the liquid nitrogen is too low, the liquid nitrogen is exhausted outwards through the inner wall 101 of the liquid pipe, cold frost is generated on the outer side of the pearlite 102, the pearlite 102 can insulate the heat of the inner wall 101 of the liquid pipe, the red pine paddings 103 can reduce the formation of the cold frost, the sponge 104 can absorb water mist, a user can hold the pipeline to adjust the direction of the flange 2 through the rotating shaft 14, the plastic pads on the outer side of the sponge 104 can isolate the temperature of the liquid inlet, when the hydraulic pump stops working, the spring is subject to resilience force to drive the moving block 7 and the abutting block 8 to move rightwards, so that the abutting block 8 abuts against the fixed block 5 to seal the storage tank,

it is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a liquid inlet pipe for liquid nitrogen storage tank, includes feed liquor pipe (1) and sump (4), its characterized in that: the liquid inlet pipe is characterized in that a flange (2) is welded at the input end of the liquid inlet pipe (1), a fixed block (5) is welded inside the liquid inlet pipe (1), a first through groove (6) is formed in the middle of the fixed block (5), a moving block (7) is arranged on the left side of the fixed block (5), a contact block (8) is welded at the right end of the moving block (7), grooves (9) are formed in the upper end and the lower end of the contact block (8), a welding block (10) is arranged on the left side of the moving block (7), the upper end and the lower end of the welding block (10) are welded and fixed with the inner wall of the liquid inlet pipe (1), a second through groove (11) is uniformly formed in the middle of the welding block (10), a nut (12) is sleeved outside the left end of the liquid inlet pipe (1), a rotating shaft (14) is welded at the left bottom end of, the bottom of nut (12) is provided with fixed case (13), and fixed case (13) cover is established in the outside of rotation axis (14), drain pipe (3) have been seted up on the top of liquid storage tank (4), and drain pipe (3) insert and establish inside fixed case (13), the top of drain pipe (3) is linked together with the bottom of first sealing washer (15), the bottom of nut (12) is provided with second sealing washer (16), and second sealing washer (16) cover is established in the flange (2) outside, install rubber pad (17) around the second sealing washer (16) outside, and the top of rubber pad (17) and the bottom welded fastening of nut (12).

2. A feed liquor pipe for a liquid nitrogen storage tank as claimed in claim 1, wherein: the liquid inlet pipe (1) comprises a liquid pipe inner wall (101), pearlife (102), Korean pine skid (103) and sponge (104), wherein the pearlife (102) is arranged inside the liquid pipe inner wall (101), the Korean pine skid (103) is arranged inside the pearlife (102), and the sponge (104) is arranged outside the Korean pine skid (103).

3. A feed liquor pipe for a liquid nitrogen storage tank as claimed in claim 2, wherein: the outer side of the sponge (104) is provided with a plastic pad which is positioned inside the inner wall (101) of the liquid pipe.

4. A feed liquor pipe for a liquid nitrogen storage tank as claimed in claim 1, wherein: a spring is arranged inside the moving block (7), one end of the spring is connected with the inner wall of the moving block (7), and the other end of the spring is welded and fixed with the right end of the welding block (10).

5. A feed liquor pipe for a liquid nitrogen storage tank as claimed in claim 1, wherein: the outer side of the left end of the liquid inlet pipe (1) is provided with an external thread, the inner wall of the nut (12) is provided with an internal thread, and the liquid inlet pipe (1) is connected with the nut (12) through a thread structure.

6. A feed liquor pipe for a liquid nitrogen storage tank as claimed in claim 1, wherein: the outer side of the left end of the liquid outlet pipe (3) is provided with external threads, the inner wall of the bottom end of the fixed box (13) is provided with internal threads, and the liquid outlet pipe (3) is connected with the fixed box (13) through a threaded structure.