CN203585804U - Safety liquid nitrogen filling equipment - Google Patents
Safety liquid nitrogen filling equipment Download PDFInfo
- Publication number
- CN203585804U CN203585804U CN201320628528.4U CN201320628528U CN203585804U CN 203585804 U CN203585804 U CN 203585804U CN 201320628528 U CN201320628528 U CN 201320628528U CN 203585804 U CN203585804 U CN 203585804U
- Authority
- CN
- China
- Prior art keywords
- liquid nitrogen
- filling equipment
- centrifugal pump
- outlet end
- supervisor
- 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.)
- Expired - Lifetime
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 26
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses safety liquid nitrogen filling equipment comprising a liquid nitrogen storage tank, wherein a main pipe is connected outside the liquid nitrogen storage tank; a manual check valve and a centrifugal pump are arranged on the main pipe; a plurality of branch pipes which are connected in parallel are additionally arranged at an outlet end of the main pipe, and each branch pipe is provided with a manual check valve; a hose coupler is arranged at an outlet end of each branch pipe; the safety liquid nitrogen filling equipment is characterized in that on the main pipe, an emergency shut-off valve and a pressure difference transmitter are additionally arranged between the centrifugal pump and the outlet end of the main pipe; control systems are connected outside the emergency shut-off valve, the pressure difference transmitter and the centrifugal pump. The safety liquid nitrogen filling equipment disclosed by the utility model can automatically stop the work of the centrifugal pump from in case that filling hose falls off; simultaneously low-temperature liquid nitrogen in the pipe can be stopped from flowing out through the emergency shut-off valve, so as to guarantee safety of an operator and a field apparatus; the safety liquid nitrogen filling equipment can be widely used as low-temperature liquid filling equipment.
Description
Technical field
The utility model relates to the filling equipment technical field of cryogenic liquide, especially a kind of safety type liquid nitrogen filling equipment.
Background technique
At present, the cryogenic liquides such as liquid oxygen, liquid nitrogen, liquid argon are generally all stored in cryogenic liquide holding vessel in advance, then are filled in tank car and are transported away by output pipeline.Traditional way is on cryogenic liquide holding vessel, to meet a supervisor, hand stop valve and centrifugal pump are housed on supervisor, supervisor is equipped with some being in charge of of being connected in parallel in end, is in charge of for every hand stop valve is all housed, and the every outlet end of being in charge of is all equipped with hose coupling.Owing to easily filling the situation that flexible pipe comes off in the process filling, once fill flexible pipe, come off, cryogenic liquide will eject, and certainly will cause on-the-spot equipment and staff's grievous injury.Therefore, designing a kind of filling equipment that can address the above problem well is extremely necessary.
Summary of the invention
The purpose of this utility model is exactly for traditional liquid nitrogen filling equipment, when filling flexible pipe and come off, easily on-the-spot equipment and staff to be caused serious injury to this defect to improve, and a kind of safety type liquid nitrogen filling equipment that can overcome preferably above-mentioned defect is provided.
Concrete scheme of the present utility model is: for traditional liquid nitrogen filling equipment, improve, it includes nitrogen storage tank, nitrogen storage tank is circumscribed with a supervisor, hand stop valve and centrifugal pump are housed on supervisor, supervisor's outlet end is also equipped with some being in charge of of being connected in parallel, be in charge of for every hand stop valve is all housed, the every outlet end of being in charge of is all equipped with hose coupling.Wherein, on supervisor, between centrifugal pump and supervisor's outlet end, Emergeny Cutoff Valves and pressure difference transmitter are also housed, all outer connected control systems of Emergeny Cutoff Valves, pressure difference transmitter, centrifugal pump three.
Once of the present utility model, filling flexible pipe comes off, pressure in supervisor will change, pressure difference transmitter will transmit a signal to control system according to the variation of pressure difference, control system can be controlled centrifugal pump and quit work, control Emergeny Cutoff Valves simultaneously and cut off the liquid nitrogen in pipe, prevent that low temperature liquid nitrogen ejection from causing field apparatus and staff's injury, for staff provides larger safety guarantee.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-nitrogen storage tank, 2-hand stop valve, 3-supervisor, 4-centrifugal pump, 5-control system, 6-Emergeny Cutoff Valves, 7-pressure difference transmitter, 8-is in charge of, 9-hand stop valve, 10-hose coupling.
Embodiment
Referring to Fig. 1, the utility model includes nitrogen storage tank 1, and nitrogen storage tank 1 is circumscribed with a supervisor 3.Supervisor is equipped with hand stop valve 2 and centrifugal pump 4 on 3, supervisor 3 outlet end be also equipped with four be connected in parallel be in charge of 8, be in charge of for every hand stop valve 9 be all housed on 8, be in charge of 8 outlet end for every hose coupling 10 be all housed; Particularly: on described supervisor 3, between centrifugal pump 4 and supervisor 3 outlet end, Emergeny Cutoff Valves 6 and pressure difference transmitter 7 are also housed, all outer connected control systems 5 of Emergeny Cutoff Valves 6, pressure difference transmitter 7, centrifugal pump 4 threes, have formed the utility model.
The utility model, not only for filling liquid nitrogen, can also be used for filling a series of cryogenic liquides such as liquid oxygen, liquid argon.
By reference to the accompanying drawings embodiment of the present utility model is described above, but the utility model is not limited to above-mentioned embodiment, above-mentioned embodiment is preferred implementation of the present utility model, is only schematically, rather than restrictive.Those of ordinary skill in the art is under enlightenment of the present utility model; do not departing from the scope situation that the utility model aim and claim protect; nitrogen storage tank 1 in the utility model, hand stop valve 2, supervisor 3, centrifugal pump 4, control system 5, Emergeny Cutoff Valves 6, pressure difference transmitter 7, be in charge of 8, the selection of size, specification and the material of hand stop valve 9 and hose coupling 10; can adjust according to actual needs; as long as the change that these are adjusted without substantive principle, all belongs to protection domain of the present utility model.
Claims (1)
1. a safety type liquid nitrogen filling equipment, include nitrogen storage tank, nitrogen storage tank is circumscribed with a supervisor, hand stop valve and centrifugal pump are housed on supervisor, supervisor's outlet end is also equipped with some being in charge of of being connected in parallel, be in charge of for every hand stop valve is all housed, the every outlet end of being in charge of is all equipped with hose coupling; It is characterized in that: described supervisor is upper is also equipped with Emergeny Cutoff Valves and pressure difference transmitter, all outer connected control systems of Emergeny Cutoff Valves, pressure difference transmitter, centrifugal pump three between centrifugal pump and supervisor's outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628528.4U CN203585804U (en) | 2013-10-12 | 2013-10-12 | Safety liquid nitrogen filling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320628528.4U CN203585804U (en) | 2013-10-12 | 2013-10-12 | Safety liquid nitrogen filling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203585804U true CN203585804U (en) | 2014-05-07 |
Family
ID=50583718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320628528.4U Expired - Lifetime CN203585804U (en) | 2013-10-12 | 2013-10-12 | Safety liquid nitrogen filling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203585804U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565805A (en) * | 2013-10-12 | 2015-04-29 | 湖北浠水蓝天联合气体有限公司 | Safety-type liquid nitrogen filling equipment |
| CN105972437A (en) * | 2016-07-07 | 2016-09-28 | 安徽淮化股份有限公司 | Safety monitoring system for liquid ammonia storage tank and application method of safety monitoring system |
-
2013
- 2013-10-12 CN CN201320628528.4U patent/CN203585804U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565805A (en) * | 2013-10-12 | 2015-04-29 | 湖北浠水蓝天联合气体有限公司 | Safety-type liquid nitrogen filling equipment |
| CN104565805B (en) * | 2013-10-12 | 2017-10-24 | 湖北浠水蓝天联合气体有限公司 | A kind of safety-type liquid nitrogen filling equipment |
| CN105972437A (en) * | 2016-07-07 | 2016-09-28 | 安徽淮化股份有限公司 | Safety monitoring system for liquid ammonia storage tank and application method of safety monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |