CN104565805A - Safety-type liquid nitrogen filling equipment - Google Patents
Safety-type liquid nitrogen filling equipment Download PDFInfo
- Publication number
- CN104565805A CN104565805A CN201310474270.1A CN201310474270A CN104565805A CN 104565805 A CN104565805 A CN 104565805A CN 201310474270 A CN201310474270 A CN 201310474270A CN 104565805 A CN104565805 A CN 104565805A
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- Prior art keywords
- liquid nitrogen
- centrifugal pump
- outlet end
- supervisor
- safety
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses safety-type liquid nitrogen filling equipment which comprises a liquid nitrogen storage tank. The liquid nitrogen storage tank is externally connected with a main tube which is provided with a hand-operated stop valve and a centrifugal pump. An outlet end of the main tube is also provided with several branched tubes which are connected in parallel. Each branch tube is provided with a hand-operated stop valve, and an outlet end of each branched tube is provided with a hose coupler. The equipment provided by the invention is characterized in that the main tube between the centrifugal pump and the outlet end of the main tube is also equipped with an emergency cut-off valve and a pressure difference transmitter; and the emergency cut-off valve, the pressure difference transmitter and the centrifugal pump are all externally connected with a control system. When a filling hose falls off, the safety-type liquid nitrogen filling equipment can automatically control the centrifugal pump to stop working, and low-temperature liquid nitrogen in the tube is prevented from flowing out through the emergency cut-off valve. Thus, safety of workers and field apparatuses is guaranteed. The equipment provided by the invention is widely used as filling equipment for low-temperature liquids.
Description
Technical field
The present invention 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 stored in cryogenic liquide holding vessel all in advance, then are filled in tank car by output pipeline and transport away.Traditional way is on cryogenic liquide holding vessel, meet a supervisor, hand stop valve and centrifugal pump supervisor be equipped with, supervisor be equipped with end some be connected in parallel be in charge of, every root is in charge of and all hand stop valve is housed, and the outlet end that every root is in charge of all is equipped with hose coupling.Owing to easily filling the situation that flexible pipe comes off in the process that fills, come off once fill flexible pipe, cryogenic liquide will eject, and certainly will cause the equipment at scene and the grievous injury of staff.Therefore, design a kind of filling equipment that can solve the problem well to be extremely necessary.
Summary of the invention
Object of the present invention is exactly easily cause serious injury this defect to the equipment at scene and staff for traditional liquid nitrogen filling equipment when filling flexible pipe and coming off to improve, and provides a kind of safety type liquid nitrogen filling equipment that can overcome above-mentioned defect preferably.
Concrete scheme of the present invention is: improve for traditional liquid nitrogen filling equipment, it includes nitrogen storage tank, nitrogen storage tank is circumscribed with a supervisor, hand stop valve and centrifugal pump supervisor be equipped with, supervisor outlet end be also equipped with some be connected in parallel be in charge of, every root is in charge of and all hand stop valve is housed, and the outlet end that every root is in charge of all is equipped with hose coupling.Wherein, Emergeny Cutoff Valves and pressure difference transmitter be also equipped with supervisor, Emergeny Cutoff Valves, pressure difference transmitter, all outer connected control system of centrifugal pump three between centrifugal pump and supervisor's outlet end.
Of the present inventionly fill flexible pipe once come off, pressure in supervisor will change, pressure difference transmitter will transmit a signal to control system according to the change of pressure difference, control system can control centrifugal pump and quit work, control the liquid nitrogen in Emergeny Cutoff Valves cut-out pipe simultaneously, prevent low temperature liquid nitrogen from spraying the injury causing field apparatus and staff, for staff provides larger safety guarantee.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-nitrogen storage tank, 2-hand stop valve, 3-is responsible for, and 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
See Fig. 1, the present invention includes nitrogen storage tank 1, nitrogen storage tank 1 is circumscribed with a supervisor 3.Supervisor 3 is equipped with hand stop valve 2 and centrifugal pump 4, the outlet end of supervisor 3 be also equipped with four be connected in parallel be in charge of 8, every root is in charge of on 8 hand stop valve 9 is all housed, and the outlet end that every root is in charge of 8 is all equipped with hose coupling 10; Particularly: described supervisor 3 is also equipped with Emergeny Cutoff Valves 6 and pressure difference transmitter 7 between centrifugal pump 4 and the outlet end of supervisor 3, and Emergeny Cutoff Valves 6, pressure difference transmitter 7, all outer connected control system 5 of centrifugal pump 4 three, namely constitute the present invention.
The present invention, not only for filling liquid nitrogen, can also be used for filling a series of cryogenic liquide such as liquid oxygen, liquid argon.
Be described embodiments of the invention by reference to the accompanying drawings above, but the present invention is not limited to above-mentioned embodiment, above-mentioned embodiment is the preferred embodiment of the present invention, is only schematic, instead of restrictive.Those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect; nitrogen storage tank 1 in the present invention, 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 the size of hand stop valve 9 and hose coupling 10, specification and material; can adjust according to actual needs; as long as these adjustment, without the change of substantive principle, all belong to protection scope of the present invention.
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 supervisor be equipped with, supervisor outlet end be also equipped with some be connected in parallel be in charge of, every root is in charge of and all hand stop valve is housed, and the outlet end that every root is in charge of all is equipped with hose coupling; It is characterized in that: described supervisor is also equipped with Emergeny Cutoff Valves and pressure difference transmitter, Emergeny Cutoff Valves, pressure difference transmitter, all outer connected control system of centrifugal pump three between centrifugal pump and supervisor's outlet end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474270.1A CN104565805B (en) | 2013-10-12 | 2013-10-12 | A kind of safety-type liquid nitrogen filling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310474270.1A CN104565805B (en) | 2013-10-12 | 2013-10-12 | A kind of safety-type liquid nitrogen filling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565805A true CN104565805A (en) | 2015-04-29 |
| CN104565805B CN104565805B (en) | 2017-10-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310474270.1A Active CN104565805B (en) | 2013-10-12 | 2013-10-12 | A kind of safety-type liquid nitrogen filling equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN104565805B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402645A (en) * | 2016-11-23 | 2017-02-15 | 西南交通大学 | Automatic replenishment method and system for vehicle-mounted dewar liquid nitrogen of superconduction magnetic levitation vehicle |
| CN112902011A (en) * | 2021-02-10 | 2021-06-04 | 鞍钢股份有限公司 | Safe filling method of low-temperature liquid |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211021A (en) * | 1991-02-28 | 1993-05-18 | Pierson Robert M | Apparatus for rapidly filling pressure vessels with gas |
| CN201014185Y (en) * | 2007-02-12 | 2008-01-30 | 查特深冷工程系统(常州)有限公司 | Mobile deep cooling liquid instantaneous delivery filling device |
| CN202149354U (en) * | 2011-07-20 | 2012-02-22 | 烟台杰瑞石油装备技术有限公司 | Liquid nitrogen car |
| CN202237352U (en) * | 2011-08-16 | 2012-05-30 | 佛山市华特气体有限公司 | Liquefied gas subzero fractionation device |
| CN102563340A (en) * | 2011-01-17 | 2012-07-11 | 丁雨福 | Horizontal low-temperature heat-insulating gas cylinder |
| CN203585804U (en) * | 2013-10-12 | 2014-05-07 | 湖北浠水蓝天联合气体有限公司 | Safety liquid nitrogen filling equipment |
-
2013
- 2013-10-12 CN CN201310474270.1A patent/CN104565805B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5211021A (en) * | 1991-02-28 | 1993-05-18 | Pierson Robert M | Apparatus for rapidly filling pressure vessels with gas |
| CN201014185Y (en) * | 2007-02-12 | 2008-01-30 | 查特深冷工程系统(常州)有限公司 | Mobile deep cooling liquid instantaneous delivery filling device |
| CN102563340A (en) * | 2011-01-17 | 2012-07-11 | 丁雨福 | Horizontal low-temperature heat-insulating gas cylinder |
| CN202149354U (en) * | 2011-07-20 | 2012-02-22 | 烟台杰瑞石油装备技术有限公司 | Liquid nitrogen car |
| CN202237352U (en) * | 2011-08-16 | 2012-05-30 | 佛山市华特气体有限公司 | Liquefied gas subzero fractionation device |
| CN203585804U (en) * | 2013-10-12 | 2014-05-07 | 湖北浠水蓝天联合气体有限公司 | Safety liquid nitrogen filling equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402645A (en) * | 2016-11-23 | 2017-02-15 | 西南交通大学 | Automatic replenishment method and system for vehicle-mounted dewar liquid nitrogen of superconduction magnetic levitation vehicle |
| CN112902011A (en) * | 2021-02-10 | 2021-06-04 | 鞍钢股份有限公司 | Safe filling method of low-temperature liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104565805B (en) | 2017-10-24 |
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