CN215722490U - Research on gas recovery device for natural vaporization of low-temperature liquid gas - Google Patents
Research on gas recovery device for natural vaporization of low-temperature liquid gas Download PDFInfo
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- CN215722490U CN215722490U CN202122330824.3U CN202122330824U CN215722490U CN 215722490 U CN215722490 U CN 215722490U CN 202122330824 U CN202122330824 U CN 202122330824U CN 215722490 U CN215722490 U CN 215722490U
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Abstract
The utility model discloses a research of a gas recovery device for natural vaporization of low-temperature liquid gas, which relates to the technical field of gas recovery of a low-temperature liquid storage tank and comprises a low-temperature liquid gas tank, wherein a first pressure sensor is arranged at the upper end of the low-temperature liquid gas tank, a gas release pipe is arranged on one side of the low-temperature liquid gas tank, a pressure release valve is arranged at one end of the gas release pipe, a gas inlet pipe is connected with one end of the pressure release valve, an operator sets a threshold value of the pressure of the inner cavity of the low-temperature liquid gas tank in advance in a first controller, when the first pressure sensor detects that the pressure of the inner cavity of the low-temperature liquid gas tank is increased, the first controller opens the pressure release valve to work and transmits gas into the inner cavity of a buffer tank for pressure release, and when the pressure value in the inner cavity of the low-temperature liquid gas tank is lower than the set threshold value, the first controller closes the pressure release valve to automatically detect the pressure in the inner cavity of the low-temperature liquid gas tank, and the pressure relief effect is realized in time, the low-temperature liquid gas tank is prevented from being damaged, and the operation is simple.
Description
Technical Field
The utility model relates to the technical field of gas recovery of low-temperature liquid storage tanks, in particular to research on a gas recovery device for natural vaporization of low-temperature liquid gas.
Background
The cryogenic liquid storage tank is a jacketed vacuum powder heat-insulating pressure vessel specially used for storing and supplying cryogenic liquefied gas (such as liquid nitrogen, liquid oxygen, liquid argon, liquid carbon dioxide and the like). Since the cryogenic liquid has a lower boiling point, the boiling point of the cryogenic liquid at a pressure of 101.3 KPa: liquid nitrogen at-196 deg.C, liquid oxygen at-183 deg.C, liquid argon at-186 deg.C, and liquid helium at-269 deg.C. The large-volume low-temperature storage tank is mostly used as a high-pressure gas cylinder for filling, a low-temperature heat-insulation gas cylinder for split charging, pipe network centralized gas supply, low-temperature liquid spraying liquid supply and the like in industrial application.
The existing gas recovery device is usually artificially decompressed to another buffer tank at intervals, cannot be automatically adjusted according to the increase of the pressure inside the low-temperature liquid storage tank, is easy to damage the low-temperature liquid storage tank, and cannot easily find that gas in the inner cavity leaks and take corresponding precautions when the gas is decompressed to the inner cavity of the buffer tank.
In view of the above problems, the present invention provides a gas recovery device for natural vaporization of a low-temperature liquid gas.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a research on a gas recovery device for natural vaporization of low-temperature liquid gas, wherein a first pressure sensor is arranged at the upper end of a low-temperature liquid gas tank, one side of the low-temperature liquid gas tank is provided with a gas release pipe, one end of the gas release pipe is provided with a pressure release valve, one end of the pressure release valve is connected with a gas inlet pipe, an operator sets a threshold value of the pressure in the inner cavity of the low-temperature liquid gas tank in advance in a first controller, when the first pressure sensor detects that the pressure in the inner cavity of the first pressure sensor is increased, the first controller opens the pressure release valve to work and transmits the gas into the inner cavity of a buffer tank to release the pressure, and when the pressure value in the inner cavity of the low-temperature liquid gas tank is lower than the set threshold value, the first controller closes the pressure release valve, so that the pressure in the inner cavity of the low-temperature liquid gas tank can be automatically detected, the pressure can be released timely, and the low-temperature liquid gas tank is prevented from being damaged, the operation is simple, thereby solving the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: the research on the gas recovery device for the natural vaporization of the low-temperature liquid gas comprises a low-temperature liquid gas tank, wherein a buffer tank is arranged on one side of the low-temperature liquid gas tank;
the low-temperature liquid gas tank comprises a first controller and a first pressure sensor arranged at the upper end of the low-temperature liquid gas tank, one side of the low-temperature liquid gas tank is provided with an air release pipe, one end of the air release pipe is provided with a pressure release valve, and one end of the pressure release valve is connected with an air inlet pipe.
Preferably, the side surface of buffer tank is provided with the second controller, and the upper end of buffer tank is provided with second pressure sensor, and one side of buffer tank is provided with loses heart and reminds the subassembly, and the opposite side surface of buffer tank is connected with gas compressor, and gas compressor's one end swing joint has the subassembly of banking up gas, and the surperficial inscription of buffer tank has the warning line.
Preferably, the air leakage reminding assembly comprises an air leakage preventing shell and an air leakage preventing pipe arranged at the lower end of the air leakage preventing shell, a piston is arranged in an inner cavity of the air leakage preventing shell, and a push rod is arranged at the upper end of the piston.
Preferably, the initial height of the push rod is consistent with the height of the reminding line.
Preferably, deposit the gas subassembly including depositing the gas jar and setting up the gas tube of depositing in gas jar one end, deposit tracheal one end through connection and have the sealing washer, deposit tracheal other end threaded connection and have the screw thread sleeve pipe, screw thread sleeve pipe's one end swing joint has the connecting pipe.
Preferably, the first air inlet has been seted up to the air deposit intraduct, and one side of first air inlet is provided with the second air inlet, and the lateral wall upper end of second air inlet is provided with the ejector pad, and the upper end fixedly connected with slide bar of ejector pad, the inlet port has been seted up to the side surface of slide bar, ejector pad upper end middle part fixedly connected with spring, the one end fixedly connected with fixed panel of spring, the hole of disappointing has been seted up on fixed panel's surface.
Preferably, the push block is of a trapezoidal structure, and the size of the tail end of the push block is matched with the size of the second air inlet.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model provides a research of a gas recovery device for natural vaporization of low-temperature liquid gas, wherein a first pressure sensor is arranged at the upper end of a low-temperature liquid gas tank, one side of the low-temperature liquid gas tank is provided with a gas release pipe, one end of the gas release pipe is provided with a pressure release valve, one end of the pressure release valve is connected with a gas inlet pipe, an operator sets a threshold value of the pressure in the inner cavity of the low-temperature liquid gas tank in advance in a first controller, when the first pressure sensor detects that the pressure in the inner cavity of the first pressure sensor is increased, the first controller opens the pressure release valve to work and transmits the gas into the inner cavity of a buffer tank to release the pressure, and when the pressure value in the inner cavity of the low-temperature liquid gas tank is lower than the set threshold value, the first controller closes the pressure release valve, so that the pressure in the inner cavity of the low-temperature liquid gas tank can be automatically detected, the pressure can be released in time, and the low-temperature liquid gas tank is prevented from being damaged, the operation is simple.
2. According to the research of the gas recovery device for the natural vaporization of the low-temperature liquid gas, the anti-leakage gas pipe is arranged at the lower end of the anti-leakage shell, the piston is arranged in the inner cavity of the anti-leakage shell, the push rod is arranged at the upper end of the piston, when the gas enters the inner cavity of the buffer tank, if the gas leaks, the pressure in the inner cavity is increased, the gas can enter the inner cavity of the anti-leakage shell from the anti-leakage gas pipe, so that the pressure in the inner cavity of the anti-leakage shell is increased to push the push rod fixedly connected with the piston to move upwards, namely when the height of the push rod is higher than the height of the reminding line, the phenomenon of gas leakage in the inner cavity of the buffer tank is indicated, and the user needs to rush repair in time, can quickly know the phenomenon of gas leakage, and avoid resource waste.
3. The utility model provides a research on a gas recovery device for natural vaporization of low-temperature liquid gas, which is characterized in that when the pressure of an inner cavity of a buffer tank is increased, a second controller starts a gas compressor to work to extract the gas into a gas storage tank, when the gas passes through a gas pipe, the gas firstly enters from a first gas inlet and then passes through a second gas inlet with smaller size, the flow rate of the gas is increased, the thrust force brought by the gas compressor is added to push a gas push block to move away from the second gas inlet, the gas passes through a gas inlet at the moment and then passes through a gas release hole in a fixed panel to enter the gas storage tank, when the pressure of the inner cavity of the buffer tank is reduced, the gas compressor is stopped to work, the push block is restored to the original position, the gas cannot be discharged from the inner cavity of the gas storage tank at the moment, the gas is ensured not to enter the inner cavity of the gas storage tank to leak, and the gas is prevented from flowing backwards.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a plan view of the interior of the surge tank of the present invention;
FIG. 3 is a plan cross-sectional view of the runflat reminder assembly of the present invention;
FIG. 4 is a schematic view of the air lock assembly of the present invention;
fig. 5 is a plan view of the inside of the trap of the present invention.
In the figure: 1. a low temperature liquid gas tank; 11. a first controller; 12. a first pressure sensor; 13. an air escape pipe; 14. a pressure relief valve; 15. an air inlet pipe; 2. a buffer tank; 21. a second controller; 22. a second pressure sensor; 23. a deflation alert component; 231. a gas leakage prevention shell; 232. the air leakage prevention pipe; 233. a piston; 234. a push rod; 24. a gas compressor; 25. a gas storage assembly; 251. a gas storage tank; 252. an air storage pipe; 2521. a first air inlet; 2522. a second air inlet; 2523. a push block; 2524. a slide bar; 2525. an air inlet; 2526. a spring; 2527. fixing the panel; 2528. an air release hole; 253. a seal ring; 254. a threaded bushing; 255. a connecting pipe; 26. and (5) a reminding line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a gas recovery device for natural vaporization of a cryogenic liquid gas includes a cryogenic liquid gas tank 1, and a buffer tank 2 is disposed at one side of the cryogenic liquid gas tank 1.
Referring to fig. 1 and 2, a low-temperature liquid gas tank 1 includes a first controller 11 and a first pressure sensor 12 installed at an upper end of the low-temperature liquid gas tank 1, a gas release pipe 13 is installed at one side of the low-temperature liquid gas tank 1, a pressure release valve 14 is installed at one end of the gas release pipe 13, the pressure release valve 14 and the first pressure sensor 12 are both electrically connected to the first controller 11, an air inlet pipe 15 is connected to one end of the pressure release valve 14, an operator sets a threshold value of pressure in an inner cavity of the low-temperature liquid gas tank 1 in advance in the first controller 11, when the first pressure sensor 12 detects that the pressure in the inner cavity of the first pressure sensor is increased, the first controller 11 opens the pressure release valve 14 to send gas into the inner cavity of the buffer tank 2 for pressure release, and when the pressure value in the inner cavity of the low-temperature liquid gas tank 1 is lower than the set threshold value, the first controller 11 closes the pressure release valve 14 to automatically detect the pressure in the inner cavity of the low-temperature liquid gas tank 1, and the effect of timely pressure relief prevents the low-temperature liquid gas tank 1 from being damaged, and the operation is simple.
Referring to fig. 1 and 3, a second controller 21 is disposed on a side surface of the buffer tank 2, a second pressure sensor 22 is disposed at an upper end of the buffer tank 2, an air leakage reminding assembly 23 is disposed at one side of the buffer tank 2, an air compressor 24 is connected to a surface of the other side of the buffer tank 2, the air compressor 24 and the second pressure sensor 22 are both electrically connected to the second controller 21, an air storage assembly 25 is movably connected to one end of the air compressor 24, a reminding line 26 is carved on a surface of the buffer tank 2, the air leakage reminding assembly 23 includes an air leakage preventing shell 231 and an air leakage preventing pipe 232 disposed at a lower end of the air leakage preventing shell 231, a piston 233 is disposed in an inner cavity of the air leakage preventing shell 231, a push rod 234 is disposed at an upper end of the piston 233, and an initial height of the push rod 234 is consistent with a height of the reminding line 26.
When gas gets into buffer tank 2 in the inner chamber, if gas takes place to leak, the pressure grow in the inner chamber, gas can enter into the inner chamber of preventing gas leakage shell 231 from preventing gas leakage pipe 232, make in the inner chamber of preventing gas leakage shell 231 pressure grow promote with piston 233 fixed connection's push rod 234 upward movement, when push rod 234 is higher than the height of reminding line 26 promptly, explain the phenomenon of gas leakage has taken place in the buffer tank 2 inner chamber, need in time salvage, can let the quick gas leakage phenomenon of knowing of user, avoid the wasting of resources.
Referring to fig. 1, 4 and 5, the gas storage assembly 25 includes a gas storage tank 251 and a gas storage tube 252 disposed at one end of the gas storage tank 251, one end of the gas storage tube 252 is connected to a sealing ring 253 in a penetrating manner, the other end of the gas storage tube 252 is connected to a threaded sleeve 254 in a threaded manner, one end of the threaded sleeve 254 is movably connected to a connecting tube 255, since the gas storage tube 252 is connected to the connecting tube 255 in a threaded manner through the threaded sleeve 254, when the gas storage tank 251 is full of gas, the gas storage tank 251 and the connecting tube 255 can be separated and replaced only by rotating the threaded sleeve 254, the operation is simple, a first gas inlet 2521 is disposed inside the gas storage tube 252, a second gas inlet 2522 is disposed at one side of the first gas inlet 2521, a push block 2523 is disposed at an upper end of a side wall of the second gas inlet 2522, the push block 2523 is in a trapezoidal structure, a size of a distal end of the push block 2523 matches a size of the second gas inlet 2522, a slide rod 2524 is fixedly connected to an upper end of the push block 2523, an air inlet 2525 is formed on a side surface of the sliding rod 2524, a spring 2526 is fixedly connected to a middle portion of an upper end of the pushing block 2523, a fixing panel 2527 is fixedly connected to one end of the spring 2526, and an air release hole 2528 is formed on a surface of the fixing panel 2527.
When the pressure in the inner cavity of the buffer tank 2 becomes higher, the second controller 21 starts the gas compressor 24 to work, so as to draw the gas into the gas storage tank 251, when the gas passes through the gas storage pipe 252, the gas enters from the first gas inlet 2521 and then passes through the second gas inlet 2522 with a smaller size, at this time, the flow rate of the gas becomes higher, and the thrust force brought by the gas compressor 24 is added, so that the gas pushes away the push block 2523 to move away from the second gas inlet 2522, at this time, the gas passes through the gas inlet hole 2525 and then passes through the gas outlet hole 2528 on the fixed panel 2527 to enter the gas storage tank 251, when the pressure in the inner cavity of the buffer tank 2 becomes lower, the gas compressor 24 stops working, the push block 2523 returns to the original position, at this time, the gas cannot be discharged from the inner cavity of the gas storage tank 251, so as to ensure that the gas cannot leak in the inner cavity thereof, and the gas is prevented from flowing backwards.
The working principle is as follows: an operator sets a threshold value of the pressure of the inner cavity of the low-temperature liquid gas tank 1 in advance at the first controller 11, when the first pressure sensor 12 detects that the pressure of the inner cavity of the low-temperature liquid gas tank 1 is increased, the first controller 11 opens the pressure release valve 14 to work, and transmits the gas into the inner cavity of the buffer tank 2 to be released, when the pressure value in the inner cavity of the low-temperature liquid gas tank 1 is lower than the set threshold value, the first controller 11 closes the pressure release valve 14, so that the effect of automatically detecting the pressure in the inner cavity of the low-temperature liquid gas tank 1 and releasing the pressure in time is achieved, when the gas enters the inner cavity of the buffer tank 2, if the gas leaks, the pressure in the inner cavity is increased, the gas enters the inner cavity of the gas leakage preventing shell 231 from the gas leakage pipe 232, so that the pressure in the inner cavity of the gas leakage preventing shell 231 is increased to push the push rod 234 fixedly connected with the piston 233 to move upwards, that the height of the push rod 234 is higher than the height of the reminding line 26, when the pressure in the inner cavity of the buffer tank 2 becomes high, the second controller 21 starts the gas compressor 24 to work to extract the gas into the gas storage tank 251, when the gas passes through the gas storage pipe 252, the gas enters from the first gas inlet 2521 and then passes through the second gas inlet 2522 with a smaller size, the flow rate of the gas is increased, the gas pushes the push block 2523 away from the second gas inlet 2522 by the thrust of the gas compressor 24, the gas passes through the gas inlet 2525 and then passes through the gas release hole 2528 on the fixed panel 2527 to enter the gas storage tank 251, when the pressure in the inner cavity of the buffer tank 2 becomes low, the gas compressor 24 stops working, the push block 2523 returns to the original position, and at this time, the gas cannot be discharged from the inner cavity 251 of the gas storage tank, ensuring that the gas can not leak in the inner cavity of the gas inlet pipe, and preventing the gas from flowing backwards.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The research of a gas recovery device for the natural vaporization of low-temperature liquid gas comprises a low-temperature liquid gas tank (1), and is characterized in that: a buffer tank (2) is arranged on one side of the low-temperature liquid gas tank (1);
the low-temperature liquid gas tank (1) comprises a first controller (11) and a first pressure sensor (12) installed at the upper end of the low-temperature liquid gas tank (1), one side of the low-temperature liquid gas tank (1) is provided with a gas release pipe (13), one end of the gas release pipe (13) is provided with a pressure release valve (14), and one end of the pressure release valve (14) is connected with a gas inlet pipe (15).
2. The research on the gas recovery device for the natural vaporization of the cryogenic liquid gas according to claim 1, characterized in that: the side surface of buffer tank (2) is provided with second controller (21), and the upper end of buffer tank (2) is provided with second pressure sensor (22), and one side of buffer tank (2) is provided with loses heart and reminds subassembly (23), and the opposite side surface of buffer tank (2) is connected with gas compressor (24), and the one end swing joint of gas compressor (24) has gas storage assembly (25), and the surface sculpture of buffer tank (2) has warning line (26).
3. The research on the gas recovery device for the natural vaporization of the cryogenic liquid gas according to claim 2, characterized in that: the air leakage reminding assembly (23) comprises an air leakage preventing shell (231) and an air leakage preventing pipe (232) arranged at the lower end of the air leakage preventing shell (231), a piston (233) is arranged in an inner cavity of the air leakage preventing shell (231), and a push rod (234) is arranged at the upper end of the piston (233).
4. The research on the gas recovery device for the natural vaporization of the cryogenic liquid gas according to claim 3, wherein: the initial height of the push rod (234) is consistent with the height of the reminding line (26).
5. The research on the gas recovery device for the natural vaporization of the cryogenic liquid gas according to claim 2, characterized in that: the gas storage assembly (25) comprises a gas storage tank (251) and a gas storage pipe (252) arranged at one end of the gas storage tank (251), one end of the gas storage pipe (252) is connected with a sealing ring (253) in a penetrating manner, the other end of the gas storage pipe (252) is in threaded connection with a threaded sleeve (254), and one end of the threaded sleeve (254) is movably connected with a connecting pipe (255).
6. The research on the gas recovery device for the natural vaporization of the cryogenic liquid gas according to claim 5, wherein: store up inside first air inlet (2521) of having seted up of trachea (252), one side of first air inlet (2521) is provided with second air inlet (2522), the lateral wall upper end of second air inlet (2522) is provided with ejector pad (2523), the upper end fixedly connected with slide bar (2524) of ejector pad (2523), inlet port (2525) have been seted up to the side surface of slide bar (2524), ejector pad (2523) upper end middle part fixedly connected with spring (2526), the one end fixedly connected with fixed panel (2527) of spring (2526), bleeder hole (2528) have been seted up on the surface of fixed panel (2527).
7. The research on the gas recovery device for the natural vaporization of the cryogenic liquid gas according to claim 6, wherein: the push block (2523) is in a trapezoidal structure, and the size of the tail end of the push block (2523) is matched with the size of the second air inlet (2522).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122330824.3U CN215722490U (en) | 2021-09-26 | 2021-09-26 | Research on gas recovery device for natural vaporization of low-temperature liquid gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122330824.3U CN215722490U (en) | 2021-09-26 | 2021-09-26 | Research on gas recovery device for natural vaporization of low-temperature liquid gas |
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| CN215722490U true CN215722490U (en) | 2022-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091075A (en) * | 2023-10-20 | 2023-11-21 | 无锡恒大电子科技有限公司 | General air storage device of air supply system |
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2021
- 2021-09-26 CN CN202122330824.3U patent/CN215722490U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117091075A (en) * | 2023-10-20 | 2023-11-21 | 无锡恒大电子科技有限公司 | General air storage device of air supply system |
| CN117091075B (en) * | 2023-10-20 | 2024-01-02 | 无锡恒大电子科技有限公司 | General air storage device of air supply system |
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