CN221076117U - Leakage-proof monitoring device for liquid nitrogen storage tank - Google Patents
Leakage-proof monitoring device for liquid nitrogen storage tank Download PDFInfo
- Publication number
- CN221076117U CN221076117U CN202322697591.XU CN202322697591U CN221076117U CN 221076117 U CN221076117 U CN 221076117U CN 202322697591 U CN202322697591 U CN 202322697591U CN 221076117 U CN221076117 U CN 221076117U
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- storage tank
- nitrogen storage
- sliding
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 239000007788 liquid Substances 0.000 title claims abstract description 89
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 74
- 238000012806 monitoring device Methods 0.000 title claims abstract description 18
- 230000001681 protective effect Effects 0.000 claims abstract description 39
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 238000007789 sealing Methods 0.000 claims description 28
- 230000000670 limiting effect Effects 0.000 claims description 19
- 230000001050 lubricating effect Effects 0.000 claims description 12
- 230000001939 inductive effect Effects 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 9
- 238000004880 explosion Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 230000036961 partial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a liquid nitrogen storage tank leakage-proof monitoring device, which comprises a protective sleeve and a liquid nitrogen storage tank, wherein the bottom of the protective sleeve is fixedly connected with a supporting frame, and a monitoring mechanism is arranged between the liquid nitrogen storage tanks of the protective sleeve. This monitoring devices is prevented leaking by liquid nitrogen storage tank, fixed connection negative pressure case between protective sheath and liquid nitrogen storage tank, pressure differential through negative pressure incasement outside and restriction gaseous unidirectional flow's gas circuit check valve make if liquid nitrogen storage tank produces the leakage, the inside of negative pressure case will be got into to the partial liquid nitrogen of leakage under the pressure effect, and then the liquid nitrogen content between protective sheath and the liquid nitrogen storage tank is lower, and the negative pressure case position is provided with the switch equally, be convenient for follow-up clearance work, and set up the filling subassembly between gliding connecting rod and the pressure bar, and then can ensure that the frictional force between connecting rod and the pressure bar is less, effectively avoid friction to fire and lead to the explosion.
Description
Technical Field
The utility model relates to the technical field of liquid nitrogen storage, in particular to a liquid nitrogen storage tank leakage-proof monitoring device.
Background
When the liquid nitrogen is stored, the liquid nitrogen is required to be maintained in a liquid state, so that potential hazards such as leakage, overpressure and explosion exist in the liquid nitrogen storage tank, and if hidden dangers before the accidents happen are not found and treated in time, serious accidents can be developed.
According to the search of Chinese invention publication number: CN215722476U discloses a liquid nitrogen storage tank monitoring safety device, comprising a shell, an inner container and an insulating layer, wherein the inner container is arranged in the shell, the insulating layer is arranged on the inner wall of the shell, and a vacuum cavity is arranged between the insulating layer and the inner container; elastic supporting rods are uniformly distributed on the bottom of the inner wall of the heat preservation layer, arc-shaped supporting plates are arranged at the tail ends of the elastic supporting rods, a plurality of elastic supporting rods are uniformly distributed on the inner side wall of the heat preservation layer, arc-shaped side plates are arranged at the tail ends of the elastic supporting rods, an inner container connector is arranged at the lower end of the inner container, a liquid discharge pipe is arranged at the lower end of the shell, and the inner container connector is communicated with the liquid discharge pipe through a high-pressure hose; the shell is also provided with a barometer, an inductive head of the barometer is arranged in the vacuum cavity, a warning device is arranged outside the shell, and the barometer is connected with the warning device; this liquid nitrogen storage tank monitoring safety device is reasonable, and the cooperation is ingenious, when liquid nitrogen leaks, and barometer can detect out the vacuum intracavity atmospheric pressure fast and control warning device and send the warning to the staff, and is high-efficient quick.
However, when the above technical scheme is implemented, there are the following problems: according to the scheme, the liquid nitrogen storage tank can timely send out reminding when liquid nitrogen leaks, but the elastic telescopic rod used for buffering in the scheme has potential safety hazards after liquid nitrogen leaks, the elastic telescopic rod is positioned in the vacuum cavity into which liquid nitrogen can flow after liquid nitrogen leaks, friction can be generated when the telescopic rod stretches, when liquid nitrogen leaks, if the elastic telescopic rod stretches under the stress, and spark can be generated to cause explosion due to friction in the stretching process, and the potential safety hazard is large.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a leakage-proof monitoring device for a liquid nitrogen storage tank, which solves the problems that an elastic telescopic rod of a protective tank body in a liquid nitrogen storage tank detection safety device can cause explosion if spark is generated due to friction after liquid nitrogen leaks, and has larger potential safety hazard.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a liquid nitrogen storage tank leak protection monitoring devices, includes protective sheath and liquid nitrogen storage tank, the bottom fixedly connected with support frame of protective sheath, be provided with monitoring mechanism between the liquid nitrogen storage tank of protective sheath, monitoring mechanism is used for monitoring and prevents that liquid nitrogen storage tank from leaking, including the barometer in the monitoring mechanism, the fixed surface of liquid nitrogen storage tank is connected with the negative pressure case, the barometer runs through and extends to the inside of negative pressure case and the inside fixed connection of barometer inductive head and negative pressure case, the inside fixedly connected with pressure bar of protective sheath, the inside of pressure bar is through sliding component sliding connection has the connecting rod, the surface of connecting rod and the fixed surface of liquid nitrogen storage tank are connected, the inside of pressure bar is through moving component sliding connection has the bracing piece, be provided with the filling subassembly between pressure bar and the protective sheath.
Preferably, the sliding assembly comprises a sliding shaft fixed on the surface of the connecting rod, a sliding groove is formed in the pressure rod, and a sliding spring is fixedly connected between the sliding shaft and the sliding groove.
Preferably, the moving assembly comprises a moving shaft fixed on the surface of the supporting rod, a moving groove is formed in the pressure rod, and a moving spring is fixedly connected between the moving shaft and the moving groove.
Preferably, the filling assembly comprises a sealing block, the surface of the sealing block is in sliding connection with the inside of the protective sleeve through a limiting assembly, one end of the pressure rod is rotationally connected with a sealing cover, and the surface of the sealing cover is rotationally connected with the inside of the protective sleeve through a rotating assembly.
Preferably, the limiting assembly comprises a limiting shaft fixed on the surface of the sealing block, a limiting groove is formed in the protective sleeve, and a limiting spring is fixedly connected between the limiting shaft and the limiting groove.
Preferably, the rotating assembly comprises a rotating shaft fixed on the surface of the sealing cover, and a rotating groove is formed in the protective sleeve.
Advantageous effects
The utility model provides a leakage-proof monitoring device for a liquid nitrogen storage tank. Compared with the prior art, the method has the following beneficial effects:
(1) This monitoring devices is prevented leaking by liquid nitrogen storage tank through fixed connection negative pressure case between protective sheath and liquid nitrogen storage tank, through the pressure differential of negative pressure incasement outside and the unidirectional gas circuit check valve of restriction gas make if liquid nitrogen storage tank produces the leakage, the inside of negative pressure case will be got into to the partial liquid nitrogen of leakage under the pressure effect, and then the liquid nitrogen content between protective sheath and the liquid nitrogen storage tank is lower, and the negative pressure case position is provided with the switch equally, be convenient for follow-up clearance work, and set up the filling subassembly between gliding connecting rod and the pressure bar, and then can ensure that the frictional force between connecting rod and the pressure bar is less, effectively avoid friction to fire and lead to the explosion.
(2) This monitoring devices is prevented leaking by liquid nitrogen storage tank sets up rotatory sealed lid through the one end at the pressure pole, sealed lid and pressure pole coincidence position set up torsion spring, and then after sealed lid atress is rotatory, the power disappearance will be made sealed lid reverse rotation and resume the position, and set up the bracing piece that realizes gliding through removal axle and removal groove in the inside of pressure pole, the inside of pressure pole can store a certain amount of lubricating liquid when promoting to pour into lubricating liquid into, increase of service time, avoid needing to carry out repeatedly in the short time lubricating liquid injection operation, reduce work load.
Drawings
FIG. 1 is a front elevational view of the structure of the present utility model;
FIG. 2 is a front view of the structure of the negative pressure tank of the present utility model;
FIG. 3 is a structural elevation view of the pressure bar of the present utility model;
Fig. 4 is an enlarged view of a partial structure of fig. 3a according to the present utility model.
In the figure: 1-protective sleeve, 2-liquid nitrogen storage tank, 3-support frame, 4-monitoring mechanism, 41-barometer, 42-negative pressure tank, 43-sliding component, 431-sliding shaft, 432-sliding groove, 433-sliding spring, 44-moving component, 441-moving shaft, 442-moving groove, 443-moving spring, 45-filling component, 451-sealing block, 452-limiting component, 4521-limiting shaft, 4522-limiting groove, 4523-limiting spring, 453-rotating component, 4531-rotating shaft, 4532-rotating groove, 454-sealing cover, 46-pressure rod, 47-connecting rod, 48-supporting rod.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, the present utility model provides two technical solutions:
Example 1
The utility model provides a liquid nitrogen storage tank leak protection monitoring devices, including protective sheath 1 and liquid nitrogen storage tank 2, protective sheath 1 is located the outside of liquid nitrogen storage tank 2, protective sheath 1 all has certain elasticity except the bottom, the bottom fixedly connected with support frame 3 of protective sheath 1, be provided with monitoring mechanism 4 between the liquid nitrogen storage tank 2 of protective sheath 1, monitoring mechanism 4 is used for monitoring and prevents liquid nitrogen storage tank 2 from leaking, contain barometer 41 in the monitoring mechanism 4, the fixed surface connection of liquid nitrogen storage tank 2 has negative pressure tank 42, the fixed surface connection of liquid nitrogen storage tank 2 and negative pressure tank 42 has the switch, negative pressure tank 42 internal pressure is less than the space between protective sheath 1 and the liquid nitrogen storage tank 2, the surface of negative pressure tank 42 has seted up the groove, the inside fixedly connected with gas circuit check valve of groove, the gas circuit check valve is the gas circuit check valve, by valve body, valve gap and diaphragm under the action realizes unidirectional efficiency, the inside being used for guiding gas by the space between protective sheath 1 and liquid nitrogen storage tank 2 to the inside of negative pressure tank 42, barometer 41 runs through and extends to the inside of negative pressure tank 42 and air pressure sensor 41 inductive head and negative pressure tank 42's inside is connected with negative pressure tank 42's inside, the inside connection has a connecting rod 46, the inside connection of pressure rod 46 is provided with the connecting rod 45 through the fixed surface connection of pressure rod 46, 45 is connected with the inside the connecting rod 45 through the inside of the connecting rod 45, the fixed connection of the connecting rod 46 is realized to the inside the connecting rod 45, the connecting rod is fixed to the inside the connecting rod is 45, the connecting rod is connected with the inside 45 through the connecting rod 45 through the sliding assembly 45, the negative pressure box 42 is fixedly connected between the protective sleeve 1 and the liquid nitrogen storage tank 2, if the liquid nitrogen storage tank 2 leaks through the pressure difference between the inside and the outside of the negative pressure box 42 and the gas path check valve limiting the unidirectional flow of gas, part of leaked liquid nitrogen can enter the inside of the negative pressure box 42 under the pressure effect, so that the liquid nitrogen content between the protective sleeve 1 and the liquid nitrogen storage tank 2 is guaranteed to be lower, a switch is also arranged at the position of the negative pressure box 42, the follow-up cleaning work is facilitated, and the filling assembly 45 is arranged between the sliding connecting rod 47 and the pressure rod 46, so that the friction force between the connecting rod 47 and the pressure rod 46 is guaranteed to be smaller, and explosion caused by friction fire is effectively avoided.
Example two
The main difference from the first embodiment is that:
The liquid nitrogen storage tank leakage-proof monitoring device comprises a sliding component 43, a sliding shaft 431 fixed on the surface of a connecting rod 47, a sliding groove 432 is arranged in the pressure rod 46, the surface of the sliding shaft 431 is in sliding connection with the inner surface of the sliding groove 432, a sliding spring 433 is fixedly connected between the sliding shaft 431 and the sliding groove 432, a moving shaft 441 fixed on the surface of a supporting rod 48 is arranged in a moving component 44, a moving groove 442 is arranged in the pressure rod 46, the surface of the moving shaft 441 is in sliding connection with the inner surface of the moving groove 442, a moving spring 443 is fixedly connected between the moving shaft 441 and the moving groove 442, a sealing block 451 is arranged in a filling component 45, the surface of the sealing block 451 is in sliding connection with the inner part of a protective sleeve 1 through a limiting component 452, one end of the pressure rod 46 is rotationally connected with a sealing cover 454, the rotational positions of the sealing cover 454 and the pressure rod 46 are fixedly connected with a torsion spring, the surface of the sealing cover 454 is rotationally connected with the inside of the protective sleeve 1 through a rotating component 453, the limiting component 452 comprises a limiting shaft 4521 fixed on the surface of the sealing block 451, the inside of the protective sleeve 1 is provided with a limiting groove 4522, the surface of the limiting shaft 4521 is slidingly connected with the inner surface of the limiting groove 4522, a limiting spring 4523 is fixedly connected between the limiting shaft 4521 and the limiting groove 4522, the rotating component 453 comprises a rotating shaft 4531 fixed on the surface of the sealing cover 454, the inside of the protective sleeve 1 is provided with a rotating groove 4532, the surface of the rotating shaft 4531 is slidingly connected with the inner surface of the rotating groove 4532, one end of the pressure rod 46 is provided with a rotating sealing cover 454, the superposition position of the sealing cover 454 and the pressure rod 46 is provided with a torsion spring, and further when the sealing cover 454 is stressed to rotate, the force disappears to drive the sealing cover 454 to reverse the recovery position, and the supporting rod 48 which can slide through the movable shaft 441 and the movable groove 442 is arranged in the pressure rod 46, so that a certain amount of lubricating liquid can be stored in the pressure rod 46 when the lubricating liquid is injected, the service time is prolonged, the need of repeatedly injecting the lubricating liquid in a short time is avoided, and the workload is reduced.
And all that is not described in detail in this specification is well known to those skilled in the art.
When the liquid nitrogen storage tank 2 leaks, liquid nitrogen leaked flows into the negative pressure tank 42 under the action of pressure, at the moment, the barometer 41 detects the pressure change in the negative pressure tank 42 to trigger the buzzer to give an alarm, so that liquid nitrogen leakage treatment is convenient to carry out timely, after the liquid nitrogen storage tank 2 is used for a period of time, friction force between the pressure rod 46 and the connecting rod 47 is increased, at the moment, a certain lubricating liquid is pumped by using a tool to push the sealing cover 454 upwards, one end of the tool contacts the sealing cover 454, the tool is pushed inwards again to drive the sealing cover 454 to rotate, at the moment, the tool enters the inside of the pressure rod 46, the lubricating liquid is injected into the inside of the pressure rod 46, excessive lubricating liquid flows into the surface of the supporting rod 48 to drive the supporting rod 48 to move downwards, at the moment, the lubricating liquid in the inside of the pressure rod 46 is driven to drive the surface of the connecting rod 47 to be coated with the lubricating liquid when moving, and friction of the connecting rod 47 when the inside of the pressure rod 46 slides is reduced.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein 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 (6)
1. The utility model provides a liquid nitrogen storage tank leak protection monitoring devices, includes protective sheath (1) and liquid nitrogen storage tank (2), its characterized in that: the bottom of the protective sleeve (1) is fixedly connected with a supporting frame (3), a monitoring mechanism (4) is arranged between the liquid nitrogen storage tanks (2) of the protective sleeve (1), and the monitoring mechanism (4) is used for monitoring and preventing the liquid nitrogen storage tanks (2) from leaking;
The utility model discloses a liquid nitrogen storage tank, including barometer (41) in monitoring mechanism (4), the fixed surface of liquid nitrogen storage tank (2) is connected with negative pressure case (42), barometer (41) run through and extend to the inside of negative pressure case (42) and barometer (41) inductive head and the inside fixed connection of negative pressure case (42), the inside fixedly connected with pressure bar (46) of protective sheath (1), the inside of pressure bar (46) is through sliding component (43) sliding connection have connecting rod (47), the surface of connecting rod (47) is connected with the fixed surface of liquid nitrogen storage tank (2), the inside of pressure bar (46) is through moving component (44) sliding connection have bracing piece (48), be provided with filling subassembly (45) between pressure bar (46) and protective sheath (1), filling subassembly (45) are used for realizing the filling of pressure bar (46) inside lubricating liquid.
2. The liquid nitrogen storage tank leakage-proof monitoring device according to claim 1, wherein: the sliding assembly (43) comprises a sliding shaft (431) fixed on the surface of the connecting rod (47), a sliding groove (432) is formed in the pressure rod (46), and a sliding spring (433) is fixedly connected between the sliding shaft (431) and the sliding groove (432).
3. The liquid nitrogen storage tank leakage-proof monitoring device according to claim 1, wherein: the movable assembly (44) comprises a movable shaft (441) fixed on the surface of the support rod (48), a movable groove (442) is formed in the pressure rod (46), and a movable spring (443) is fixedly connected between the movable shaft (441) and the movable groove (442).
4. The liquid nitrogen storage tank leakage-proof monitoring device according to claim 1, wherein: the filling assembly (45) comprises a sealing block (451), the surface of the sealing block (451) is in sliding connection with the inside of the protective sleeve (1) through a limiting assembly (452), one end of the pressure rod (46) is rotationally connected with a sealing cover (454), and the surface of the sealing cover (454) is rotationally connected with the inside of the protective sleeve (1) through a rotating assembly (453).
5. The liquid nitrogen storage tank leakage-proof monitoring device as claimed in claim 4, wherein: limiting assembly (452) are contained and are fixed spacing axle (4521) on sealing block (451) surface, spacing groove (4522) has been seted up to the inside of protective sheath (1), fixedly connected with spacing spring (4523) between spacing axle (4521) and spacing groove (4522).
6. The liquid nitrogen storage tank leakage-proof monitoring device as claimed in claim 4, wherein: the rotating assembly (453) comprises a rotating shaft (4531) fixed on the surface of the sealing cover (454), and a rotating groove (4532) is formed in the protective sleeve (1).
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221076117U true CN221076117U (en) | 2024-06-04 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108151977A (en) | A kind of liquid-level indicator type is in liquid gas storage tank air-tightness detection device | |
| CN209554015U (en) | A kind of dangerous material store-feeding device with leakage alarming device | |
| CN109780414B (en) | Liquid ammonia storage tank | |
| CN221076117U (en) | Leakage-proof monitoring device for liquid nitrogen storage tank | |
| CN201703787U (en) | Automatic micropressure protector of storage tank | |
| CN204437684U (en) | Utilize carbon dioxide to fill residual air in pipeline and carry out the system of gas displacement | |
| CN204785554U (en) | Leak hunting device of intermediate layer low temperature container inner container | |
| CN217684384U (en) | Carbon dioxide storage device | |
| CN114992529A (en) | Intelligent gas pipeline with air pressure detection function | |
| CN115218117B (en) | Explosion-proof device for vacuum storage tank | |
| CN208915947U (en) | Negative pressure storage tank | |
| CN108758331B (en) | Oil return overpressure detection and relief device of hydraulic piston type natural gas compressor unit | |
| CN113719762A (en) | Natural gas line leakage detection device | |
| CN213121279U (en) | Intelligent sampler | |
| CN215946753U (en) | Skid-mounted oil loading and unloading equipment for gas station | |
| CN219905527U (en) | Major hazard source storage tank monitoring and early warning device | |
| CN213493495U (en) | Dangerous chemical configuration frock | |
| CN220792820U (en) | Acetylene leakage protective cover | |
| CN214583845U (en) | Gas table core leakproofness detects location frock | |
| CN220949488U (en) | Movable chemical storage tank | |
| CN210890259U (en) | Valve device for limiting and protecting natural gas | |
| CN215492268U (en) | Chemical leakage detection device | |
| CN219810588U (en) | Device for detecting internal leakage of stop valve | |
| CN221025451U (en) | Prevent volatilizing waste liquid storage device | |
| CN219391256U (en) | Detector that stability is good |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |