CN213118468U - Liquid nitrogen container with capacity reminding and leakage alarming functions - Google Patents
Liquid nitrogen container with capacity reminding and leakage alarming functions Download PDFInfo
- Publication number
- CN213118468U CN213118468U CN202021263010.1U CN202021263010U CN213118468U CN 213118468 U CN213118468 U CN 213118468U CN 202021263010 U CN202021263010 U CN 202021263010U CN 213118468 U CN213118468 U CN 213118468U
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- capacity
- container
- outlet pipe
- nitrogen container
- 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 214
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 100
- 239000007788 liquid Substances 0.000 title claims abstract description 97
- 238000007667 floating Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 36
- 230000000903 blocking effect Effects 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 10
- 239000011229 interlayer Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 14
- 230000003139 buffering effect Effects 0.000 abstract description 6
- 208000001034 Frostbite Diseases 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 abstract description 3
- 230000008859 change Effects 0.000 abstract description 2
- 229920001971 elastomer Polymers 0.000 description 3
- 238000002309 gasification Methods 0.000 description 3
- 239000005060 rubber Substances 0.000 description 3
- 238000011976 chest X-ray Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 206010011224 Cough Diseases 0.000 description 1
- 206010011703 Cyanosis Diseases 0.000 description 1
- 206010013952 Dysphonia Diseases 0.000 description 1
- 208000000059 Dyspnea Diseases 0.000 description 1
- 206010013975 Dyspnoeas Diseases 0.000 description 1
- 208000010473 Hoarseness Diseases 0.000 description 1
- 208000029523 Interstitial Lung disease Diseases 0.000 description 1
- 206010023644 Lacrimation increased Diseases 0.000 description 1
- 206010030113 Oedema Diseases 0.000 description 1
- 229920001774 Perfluoroether Polymers 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 206010036790 Productive cough Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 206010006451 bronchitis Diseases 0.000 description 1
- 210000000795 conjunctiva Anatomy 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000004317 lacrimation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000004400 mucous membrane Anatomy 0.000 description 1
- 210000002850 nasal mucosa Anatomy 0.000 description 1
- 230000017074 necrotic cell death Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 210000003800 pharynx Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a liquid nitrogen container with capacity is reminded and is leaked alarming function belongs to a jar container field. It includes the liquid nitrogen container, the top of liquid nitrogen container be connected with the outlet duct, the liquid nitrogen container have the guard box outward, the outer protection tube that has of outlet duct, protection tube and guard box intercommunication and form the buffering space, and be equipped with barodetector and thermodetector in the buffering space, the liquid nitrogen container in be equipped with the floating ball. Its advantage lies in the one hand, and buffer space can temporarily save the nitrogen gas of leaking out in the very first time, prevents that microthermal nitrogen gas from leaking and damaging equipment or frostbite staff. On the other hand, the leaked nitrogen can change the air pressure and the temperature in the buffer space, and the air pressure detector and the temperature detector can detect the air pressure and the temperature in the buffer space respectively, so that the worker can be quickly informed to be far away from the liquid nitrogen tank and adopt protective measures.
Description
Technical Field
The utility model belongs to jar container field especially relates to a liquid nitrogen container with capacity is reminded and is leaked alarming function.
Background
Liquid nitrogen is generally used in hospitals, but liquid nitrogen inevitably leaks in the using or transportation process, and the liquid nitrogen leaks to cause great harm to human bodies, especially low-temperature gas after the liquid nitrogen is gasified, so that the skin is easily frostbitten once the liquid nitrogen contacts medical staff, in addition, low-concentration nitrogen has a stimulating effect on mucous membranes, and tissue dissolution and necrosis can be caused by high concentration. Patients with mild poisoning have lacrimation, pharyngalgia, hoarseness, cough, expectoration, etc.; congestion and edema of conjunctiva, nasal mucosa and pharynx; chest X-ray signs were consistent with bronchitis or peribronchiolitis. Moderate poisoning with symptoms of dyspnea and cyanosis; chest X-ray signs were consistent with pneumonia or interstitial pneumonia. Therefore, a leakage alarm mechanism is needed to be designed, so that medical staff can be reminded in time once the nitrogen leakage occurs in the liquid nitrogen tank.
For example, chinese patent document discloses a liquid nitrogen leakage alarm device [ patent application No.: CN201520928077.5], which comprises a liquid nitrogen container, wherein the liquid nitrogen container comprises a bottle body and an output end positioned at the upper part of the bottle body, the outer part of the bottle body below the output end is wrapped with a leakage-proof shell, a leakage buffer area is arranged between the leakage-proof shell and the liquid nitrogen container, the leakage buffer area is in vacuum arrangement, the inner wall of the leakage buffer area is provided with a temperature detector and an air pressure detector, and the temperature detector and the air pressure detector are respectively connected with a temperature alarm and an air pressure alarm; output department is provided with the sealed cowling, and the sealed cowling cup joints in the output outside, and the output passes through the open end intercommunication on pipeline and the sealed cowling, is provided with the valve on the open end. But the alarm system of the device can be further improved.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide a liquid nitrogen container with capacity is reminded and is leaked alarming function.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides a liquid nitrogen container with capacity is reminded and is leaked alarming function, includes the liquid nitrogen container, the top of liquid nitrogen container be connected with the outlet duct, the liquid nitrogen container outer guard box has, the outer protection tube that has of outlet duct, protection tube and guard box intercommunication and form the buffering space, and be equipped with barometer and thermodetector in the buffering space, the liquid nitrogen container in be equipped with and float the ball.
In foretell liquid nitrogen container with capacity warning and leakage alarming function, the outlet duct on be equipped with the rotation valve, the last pivot of rotation valve run through the protection tube and rather than rotate and be connected, liquid nitrogen container and outlet duct all with buffer space inner wall between have the clearance, barometer and thermodetector be close to the outlet duct.
In foretell liquid nitrogen container with capacity warning and leakage alarming function, the liquid nitrogen container in be equipped with the interlayer board, the upper and lower both sides of interlayer board have emergency seal chamber and the liquid nitrogen chamber of setting in the liquid nitrogen container respectively, the interlayer board on run through the intercommunication groove that has intercommunication emergency seal chamber and liquid nitrogen chamber, the intercommunication groove correspond the setting with the port of outlet duct, the interlayer board in be equipped with the jam piece that can block up outlet duct and intercommunication groove, the floating ball is located the liquid nitrogen intracavity.
In the liquid nitrogen container with the capacity reminding and leakage alarming functions, the emergency sealing cavity is in sliding connection with the blocking block, the blocking block is arranged in a hollow mode, the sealing block is movably connected in the blocking block, a rotary driver is arranged in the liquid nitrogen container, and an output shaft of the rotary driver is in threaded connection with the blocking block.
In the liquid nitrogen tank with the capacity reminding and leakage alarming functions, the top of the sealing block is provided with an embedded pad which can extend into the air outlet pipe, and the embedded pad is matched with the inner diameter of the air outlet pipe.
In the liquid nitrogen tank with the capacity reminding and leakage alarming functions, the cross section areas of the sealing blocks are all larger than the cross section areas of the air outlet pipe and the communicating groove.
In foretell liquid nitrogen container with capacity warning and leakage alarming function, the inner wall of guard box on be equipped with a sealing washer pad at least, the sealing washer pad can extend into the guard box in, just the up end of sealing washer pad support mutually have with guard box sliding connection's warning pole, the warning pole keep away from the tip of sealing washer pad and can extend the guard box.
In the liquid nitrogen tank with the capacity reminding and leakage alarming functions, a sliding rod is arranged between the interlayer plate and the bottom of the liquid nitrogen cavity, and the floating ball slides on the sliding rod.
In the liquid nitrogen tank with the capacity reminding and leakage alarming functions, the top of the sliding rod is provided with a distance detector positioned in the interlayer plate.
Compared with the prior art, the utility model has the advantages of:
1. the utility model provides a protection tube and guard box intercommunication just form the buffering space, and are equipped with barometer and thermodetector in the buffering space. On the one hand, buffer space can temporarily save the nitrogen gas of leaking out in the very first time, prevents that microthermal nitrogen gas from leaking and damaging equipment or frostbite staff. On the other hand, the leaked nitrogen can change the air pressure and the temperature in the buffer space, and the air pressure detector and the temperature detector can detect the air pressure and the temperature in the buffer space respectively, so that the worker can be quickly informed to be far away from the liquid nitrogen tank and adopt protective measures.
2. The utility model discloses well urgent seal chamber and block up piece sliding connection, and block up a cavity setting, block up the interior swing joint of piece and have sealed piece, sealed piece has the ability of deformability, makes the block removal, makes sealed piece remove to the top in intercommunication groove, thereby makes sealed piece rebound plug up the inlet end portion of outlet duct under the high pressure that liquid nitrogen gasification produced. Thereby stopping the leakage of nitrogen gas.
Drawings
Fig. 1 is an overall schematic view of the present invention;
FIG. 2 is an enlarged schematic view of A of FIG. 1;
fig. 3 is a schematic top view at the emergency seal cavity.
In the figure: the device comprises a liquid nitrogen tank 10, an air outlet pipe 11, a protection box 12, a protection pipe 13, a buffer space 14, an air pressure detector 15, a temperature detector 16, a floating ball 17, a rotary valve 18, a rotary shaft 19, a partition plate 20, an emergency sealing cavity 21, a liquid nitrogen cavity 22, a communication groove 23, a blocking block 24, a sealing block 25, a rotary driver 26, an embedded pad 27, a sealing ring pad 28, a warning rod 29, a sliding rod 30 and a distance detector 31.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, a liquid nitrogen container with capacity reminding and leakage alarming functions comprises a liquid nitrogen container 10, the top of the liquid nitrogen container 10 is connected with an air outlet pipe 11, the liquid nitrogen container 10 is externally provided with a protection box 12, the air outlet pipe 11 is externally provided with a protection pipe 13, the protection pipe 13 is communicated with the protection box 12 to form a buffer space 14, an air pressure detector 15 and a temperature detector 16 are arranged in the buffer space 14, and a floating ball 17 is arranged in the liquid nitrogen container 10.
The utility model discloses in, when liquid nitrogen container 10 takes place nitrogen gas and leaks, on the one hand, buffer space 14 can temporarily save the nitrogen gas of leaking out the very first time, prevents microthermal nitrogen gas leakage damage equipment or frostbite staff. On the other hand, the leaked nitrogen gas changes the air pressure and the temperature in the buffer space 14, the air pressure detector 15 and the temperature detector 16 can detect the air pressure and the temperature in the buffer space 14, and once the air pressure is suddenly increased and the temperature is suddenly decreased, the worker can be quickly informed away from the liquid nitrogen tank 10 in the manner of an instrument panel and take protective measures. In addition, the floating ball 17 can be made of plastic or wood, floats on the liquid nitrogen liquid level and can reflect the residual liquid nitrogen capacity in the liquid nitrogen tank 10.
The gas outlet pipe 11 is provided with a rotary valve 18, a rotary shaft 19 on the rotary valve 18 penetrates through the protection pipe 13 and is rotatably connected with the protection pipe, gaps are reserved between the liquid nitrogen tank 10 and the inner wall of the buffer space 14 and between the gas outlet pipe 11 and the inner wall of the buffer space 14, and the gas pressure detector 15 and the temperature detector 16 are close to the gas outlet pipe 11.
The utility model discloses in, because the swing joint is for with outlet duct 11 to the rotary valve 18, or outlet duct 11 passes through the union coupling with liquid nitrogen container 10, consequently general liquid nitrogen container 10 leakage department is located outlet duct 11 and ooff valve department, consequently sets up barometer 15 and temperature detector 16 in the position of nearly outlet duct 11, can sense the leakage fast.
In addition, the rotating shaft 19 and the protection tube 13 can be rotatably connected through a ball bearing, the outer ring of the ball bearing is connected with the protection tube 13, the inner ring of the ball bearing is connected with the rotating shaft 19, the ball bearing is in interference fit with the rotating shaft 19, the ball bearing is arranged in the protection tube 13 through a retaining ring or an end cover, and the retaining ring or the end cover is fixed through a jacking screw.
The liquid nitrogen tank 10 is internally provided with a partition plate 20, an emergency sealing cavity 21 and a liquid nitrogen cavity 22 which are arranged in the liquid nitrogen tank 10 are respectively arranged on the upper side and the lower side of the partition plate 20, a communicating groove 23 which is communicated with the emergency sealing cavity 21 and the liquid nitrogen cavity 22 penetrates through the partition plate 20, the communicating groove 23 is arranged corresponding to the port of the air outlet pipe 11, a blocking block 24 which can block the air outlet pipe 11 and the communicating groove 23 is arranged in the partition plate 20, and the floating ball 17 is positioned in the liquid nitrogen cavity 22.
The utility model discloses in, after liquid nitrogen container 10 takes place to leak, can the quick start protection operation, will block up 24 jam blocks up outlet duct 11 and intercommunication groove 23, prevent that the liquid nitrogen from getting into outlet duct 11 to stop the leakage of nitrogen gas.
The emergency sealing cavity 21 is in sliding connection with the blocking block 24, the blocking block 24 is arranged in a hollow mode, the sealing block 25 is movably connected into the blocking block 24, the liquid nitrogen tank 10 is internally provided with a rotary driver 26, and an output shaft of the rotary driver 26 is in threaded connection with the blocking block 24.
The utility model discloses in, rotation driver 26 can be the rotation motor, and sealed piece 25 has the ability of deformability, can adopt low temperature resistant rubber material to make, like fluoroether rubber, silicon rubber, butadiene rubber etc.. When the liquid nitrogen tank 10 leaks, the rotation driver 26 operates to rotate the output shaft thereof, thereby moving the blocking block 24, moving the sealing block 25 to the upper side of the communication groove 23, and moving the sealing block 25 upward under the high pressure generated by the gasification of the liquid nitrogen to block the inlet end portion of the outlet pipe 11.
The top of the sealing block 25 is provided with an embedded pad 27 which can extend into the air outlet pipe 11, and the embedded pad 27 is matched with the inner diameter of the air outlet pipe 11.
In the present invention, the embedded pad 27 is extended into the outlet duct 11 under the high pressure generated by the gasification of the liquid nitrogen, so that the outlet duct 11 can be blocked.
The cross-sectional areas of the sealing blocks 25 are all larger than the cross-sectional areas of the air outlet pipe 11 and the communication groove 23.
The utility model discloses in, embedding pad 27 extends to block up outlet duct 11 in the outlet duct 11, and sealed piece 25 offsets with urgent sealed chamber 21 top, further blocks up 11 ports of outlet duct.
The inner wall of the protection box 12 is provided with at least one sealing ring pad 28, the sealing ring pad 28 can extend into the protection box 12, the upper end face of the sealing ring pad 28 is abutted against a warning rod 29 which is connected with the protection box 12 in a sliding mode, and the end portion, far away from the sealing ring pad 28, of the warning rod 29 can extend out of the protection box 12.
The utility model discloses in, sealing washer 28 adopts the rubber material, and when liquid nitrogen container 10 took place to leak, atmospheric pressure grow in the buffer space 14 made sealing washer 28 upwards blast to can push away warning pole 29 rebound and extend guard box 12, further suggestion staff.
A sliding rod 30 is arranged between the interlayer plate 20 and the bottom of the liquid nitrogen cavity 22, and the floating ball 17 slides on the sliding rod 30.
The top of the slide bar 30 has a distance detector 31 located in the interlayer plate 20.
In the present invention, the floating ball 17 slides on the slide bar 30, and the irradiation direction of the distance detector 31 is vertically downward and irradiates on the floating ball 17.
The utility model discloses a theory of operation: when the nitrogen gas leaks from the liquid nitrogen tank 10, the buffer space 14 can temporarily store the leaked nitrogen gas for the first time, so that the equipment is prevented from being damaged or workers are prevented from being frostbitten by the leaked nitrogen gas. On the other hand, the leaked nitrogen gas changes the air pressure and the temperature in the buffer space 14, the air pressure detector 15 and the temperature detector 16 can detect the air pressure and the temperature in the buffer space 14 respectively, once the air pressure is increased suddenly and the temperature is reduced suddenly, the worker can be rapidly informed away from the liquid nitrogen tank 10 and adopt protection measures in an instrument panel mode, in addition, the sealing ring pad 28 is blown upwards, so that the warning rod 29 can be pushed to move upwards and extend out of the protection box 12, and the worker is further prompted.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although the liquid nitrogen tank 10, the gas outlet pipe 11, the protection box 12, the protection pipe 13, the buffer space 14, the gas pressure detector 15, the temperature detector 16, the floating ball 17, the rotary valve 18, the rotary shaft 19, the partition plate 20, the emergency seal chamber 21, the liquid nitrogen chamber 22, the communication groove 23, the blocking block 24, the seal block 25, the rotary driver 26, the insert pad 27, the packing pad 28, the warning rod 29, the slide rod 30, the distance detector 31, etc. are used more frequently herein, these terms are used only for convenience of describing and explaining the essence of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.
Claims (9)
1. The utility model provides a liquid nitrogen container with capacity is reminded and is leaked alarming function, includes liquid nitrogen container (10), its characterized in that, the top of liquid nitrogen container (10) be connected with outlet duct (11), liquid nitrogen container (10) have guard box (12) outward, outlet duct (11) have protection tube (13) outward, protection tube (13) and guard box (12) intercommunication and form buffer space (14), and be equipped with barodetector (15) and thermodetector (16) in buffer space (14), liquid nitrogen container (10) in be equipped with and float ball (17).
2. The liquid nitrogen tank with the capacity reminding and leakage alarming functions as claimed in claim 1, wherein a rotary valve (18) is arranged on the gas outlet pipe (11), a rotary shaft (19) on the rotary valve (18) penetrates through the protection pipe (13) and is rotatably connected with the protection pipe, gaps are formed between the liquid nitrogen tank (10) and the gas outlet pipe (11) and the inner wall of the buffer space (14), and the gas pressure detector (15) and the temperature detector (16) are close to the gas outlet pipe (11).
3. The liquid nitrogen tank with the capacity reminding and leakage alarming functions as claimed in claim 1, wherein a partition plate (20) is arranged in the liquid nitrogen tank (10), the upper side and the lower side of the partition plate (20) are respectively provided with an emergency sealing cavity (21) and a liquid nitrogen cavity (22) which are arranged in the liquid nitrogen tank (10), a communicating groove (23) for communicating the emergency sealing cavity (21) with the liquid nitrogen cavity (22) penetrates through the partition plate (20), the communicating groove (23) is arranged corresponding to the port of the air outlet pipe (11), a blocking block (24) capable of blocking the air outlet pipe (11) and the communicating groove (23) is arranged in the partition plate (20), and the floating ball (17) is located in the liquid nitrogen cavity (22).
4. The liquid nitrogen tank with the capacity reminding function and the leakage alarming function as claimed in claim 3, wherein the emergency sealing cavity (21) is slidably connected with the blocking block (24), the blocking block (24) is arranged in a hollow manner, the sealing block (25) is movably connected in the blocking block (24), a rotating driver (26) is arranged in the liquid nitrogen tank (10), and an output shaft of the rotating driver (26) is in threaded connection with the blocking block (24).
5. The liquid nitrogen container with the capacity reminding and leakage alarming functions as claimed in claim 4, wherein the top of the sealing block (25) is provided with an embedded pad (27) which can extend into the air outlet pipe (11), and the embedded pad (27) is matched with the inner diameter of the air outlet pipe (11).
6. The liquid nitrogen tank with the capacity reminding function and the leakage alarming function as claimed in claim 5, wherein the cross-sectional areas of the sealing blocks (25) are larger than the cross-sectional areas of the air outlet pipe (11) and the communication groove (23).
7. The liquid nitrogen tank with the capacity reminding function and the leakage alarming function as claimed in claim 1, wherein at least one sealing gasket (28) is arranged on the inner wall of the protection box (12), the sealing gasket (28) can extend into the protection box (12), the upper end face of the sealing gasket (28) is abutted against a warning rod (29) in sliding connection with the protection box (12), and the end part, far away from the sealing gasket (28), of the warning rod (29) can extend out of the protection box (12).
8. The liquid nitrogen tank with the capacity reminding function and the leakage alarming function as claimed in claim 3, wherein a sliding rod (30) is arranged between the division plate (20) and the bottom of the liquid nitrogen cavity (22), and the floating ball (17) slides on the sliding rod (30).
9. The liquid nitrogen tank with the capacity warning and the leakage warning function as claimed in claim 8, wherein the top of the sliding rod (30) is provided with a distance detector (31) positioned in the interlayer plate (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021263010.1U CN213118468U (en) | 2020-07-01 | 2020-07-01 | Liquid nitrogen container with capacity reminding and leakage alarming functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021263010.1U CN213118468U (en) | 2020-07-01 | 2020-07-01 | Liquid nitrogen container with capacity reminding and leakage alarming functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213118468U true CN213118468U (en) | 2021-05-04 |
Family
ID=75673982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021263010.1U Active CN213118468U (en) | 2020-07-01 | 2020-07-01 | Liquid nitrogen container with capacity reminding and leakage alarming functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213118468U (en) |
-
2020
- 2020-07-01 CN CN202021263010.1U patent/CN213118468U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211010791U (en) | Sulfur hexafluoride gas leakage-proof structure | |
| CN201569547U (en) | Vacuum adsorption leak detecting device | |
| BR0106893A (en) | Methods of locating a potential source of fluid leak in a fluid container and locating a potential source of fuel leak in an aircraft fuel tank | |
| CN209470820U (en) | Air-tightness detection device for expansion tank | |
| CN213118468U (en) | Liquid nitrogen container with capacity reminding and leakage alarming functions | |
| CN211176332U (en) | Monitoring and protecting device for liquid chlorine conveying pipe | |
| CN201876341U (en) | Tightness detecting device for packaging bag | |
| CN205956431U (en) | Side installation way dredging pipe valve | |
| CN102109403A (en) | Leakage detector of welding seam of container | |
| CN206208460U (en) | A kind of leakage detection apparatus | |
| CN201688951U (en) | Welding seam leakage detecting box | |
| CN204630698U (en) | A kind of sandwich protection gas bag packs bubble-tight pick-up unit | |
| CN208531200U (en) | A kind of accumulating tank inflation seal ring | |
| CN201025328Y (en) | A leakage prevention active door | |
| CN212226306U (en) | Anti-seepage device for gas station construction | |
| CN208915947U (en) | Negative pressure storage tank | |
| CN204647388U (en) | A kind of pneumatic actuator semispherical valve | |
| CN205538111U (en) | Medicine bottle leakproofness detection device for biological medicine | |
| CN203848993U (en) | Airtightness detection apparatus for guiding wheels | |
| CN207318460U (en) | The micro- water detection attachment device of power equipment SF6 gases | |
| CN220366975U (en) | Perfume tightness inspection box with explosion-proof function | |
| CN218878243U (en) | Triethylamine storage tank structure | |
| CN111896199B (en) | Tank storage equipment air pressure detection device based on industrial production | |
| CN206199306U (en) | A kind of customs inspection experiment porch | |
| CN203572623U (en) | Air leakage detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Building 3, Building 1, No. 926, Changhong East Street, Fuxi Street, Deqing County, Huzhou City, Zhejiang Province (Moganshan National High-tech Zone) (self declaration) Patentee after: Zhejiang Zhengxi Biotechnology Co.,Ltd. Address before: Building 1, No. 926, Changhong East Street, Fuxi street, Deqing County, Huzhou City, Zhejiang Province, 313000 (Moganshan national high tech Zone) Patentee before: Zhejiang Zhengxi Biotechnology Co.,Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Liquid nitrogen tank with capacity reminder and leakage alarm function Granted publication date: 20210504 Pledgee: Deqing sub branch of Bank of China Ltd. Pledgor: Zhejiang Zhengxi Biotechnology Co.,Ltd. Registration number: Y2024980010535 |