CN102410261A - Liquid nitrogen pump - Google Patents
Liquid nitrogen pump Download PDFInfo
- Publication number
- CN102410261A CN102410261A CN2010102970362A CN201010297036A CN102410261A CN 102410261 A CN102410261 A CN 102410261A CN 2010102970362 A CN2010102970362 A CN 2010102970362A CN 201010297036 A CN201010297036 A CN 201010297036A CN 102410261 A CN102410261 A CN 102410261A
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- liquid
- heat
- discharging tube
- insulating
- sealing bracket
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Abstract
The invention relates to a liquid nitrogen pump. The liquid nitrogen pump comprises a pump body, an automatic constant-temperature heater, a thermal insulator and a liquid discharge tube. An exhaust valve, a safety exhaust valve, a pressure meter and a pressure control power switch are evenly distributed on the pump body, the upper part of the inner wall of the pump body is connected with the thermal insulator, and the bottom of the pump body is provided with a rubber seal ring I; the liquid discharge tube is inserted in the thermal insulator, the upper end of the liquid discharge tube is provided with a liquid discharge control valve, and the lower end of the liquid discharge tube runs through the automatic constant-temperature heater and is fixed on the automatic constant-temperature heater; the pressure control power switch is connected with the automatic constant-temperature heater; and the rubber seal ring I is provided with a locknut, which is connected with the pump body. The liquid nitrogen pump is small, has a simple structure, can greatly increase the working efficiency and decrease labor intensity, and also guarantees the stability of liquid discharge.
Description
Technical field
The present invention relates to a kind of liquid nitrogen transmitting set, relate in particular to special liquid nitrogen pump for scientific research, universities and colleges, medical department laboratory development.
Background technique
At present, the small-sized hand-operated or pin that uses is both at home and abroad stepped on the liquid nitrogen feedway and is all existed efficient low, and labor intensity is big, and because of the heat conduction frosting, liquid nitrogen loss is big, uses the defective of inconvenient (dashing when adorning many bottles of liquid nitrogen) continuously.
Summary of the invention
Technical problem to be solved by this invention provides a kind of liquid nitrogen pump of increasing work efficiency.
For addressing the above problem, a kind of liquid nitrogen pump of the present invention is characterized in that: this pump comprises the pump housing, automatic constant-temperature heater, heat insulating device and liquid-discharging tube; Be evenly distributed with outlet valve, safety exhaust, pressure gauge and pressure control power switch on the said pump housing, its upper inside wall links to each other with said heat insulating device, and its bottom is provided with O-ring seal I; Be inserted with said liquid-discharging tube in the said heat insulating device, the top of this liquid-discharging tube is provided with the lifting rate control valve, and said automatic constant-temperature heater and fixing is with it then passed in its bottom; Said pressure control power switch links to each other with said automatic constant-temperature heater; Said O-ring seal I is provided with locking nut, and this locking nut links to each other with the said pump housing.
Said automatic constant-temperature heater is cylindrical shape, and its top center is provided with liquid-discharging tube pore I and threading hole, and its bottom centre is provided with liquid-discharging tube pore II, and its inner disk is wound with the electric heating wire of 25000～30000J/min; Said electric heating wire is connected with power line, and this power line passes said threading hole and links to each other with said pressure control power switch; Said liquid-discharging tube passes said liquid-discharging tube pore I and said liquid-discharging tube pore II and fixing with it.
Said heat insulating device comprises heat-insulating and sealing bracket I, heat-insulating and sealing bracket I I and is the support extension of undergauge; The outer wall of said heat-insulating and sealing bracket I I is connected with the inner thread of the said pump housing, is provided with O-ring seal II between its bottom and the said pump housing; The outer wall of said heat-insulating and sealing bracket I is connected with the inner thread of said heat-insulating and sealing bracket I I, and its part inwall contacts with said liquid-discharging tube; The bottom of said heat-insulating and sealing bracket I I is provided with said support extension, and this support extension contacts with said liquid-discharging tube; Be provided with O-ring seal III between said heat-insulating and sealing bracket I and said support extension and the said liquid-discharging tube.
Said heat-insulating and sealing bracket I, heat-insulating and sealing bracket I I, support extension are all adopted and are gathered fluorine tetrem alkene as thermal-protective material.
The present invention compared with prior art has the following advantages:
1, owing to be provided with the automatic constant-temperature heater among the present invention, realized controlled automatic supercharging, changing manually is (only to need energized) automatically, therefore, has not only improved working efficiency significantly, has reduced labor intensity, but also has guaranteed the stability of fluid.
2, owing to be provided with heat insulating device among the present invention, therefore, not only avoid the appearance of frosting phenomenon effectively, reduced the evaporation loss of liquid nitrogen, and safe in utilization, personal injury takes place when having avoided operator to annotate liquid nitrogen effectively; Also can realize simultaneously carrying out continuously the purpose that many bottles of liquid nitrogen dash dress.
3, owing to being soft with heat insulating device, liquid-discharging tube, automatic constant-temperature heater among the present invention contact, the liquid-discharging tube that can stretch arbitrarily according to actual needs, and therefore easy to use, adaptability is strong.
4, little, simple in structure, the easy operation of volume of the present invention.
Description of drawings
Do further detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the structural representation of automatic constant-temperature heater among the present invention.
Fig. 3 is the structural representation of heat insulating device among the present invention.
Among the figure: 1- liquid nitrogen biological container 2- automatic constant-temperature heater 2-1- discharging tube pore I2-2- through wires hole 2-3- discharging tube pore II2-4- heating wire 2-5- power line 3- heat insulating device 3-1- heat-insulating and sealing bracket I 3-2- heat-insulating and sealing bracket I I3-3- support extension 3-4- O-ring seal II3-5- O-ring seal III4- air bleeding valve 5- pressure control power switch 6- safety exhaust 7- Pressure gauge 8- discharging tube 9- lifting rate control valve 10- O-ring seal I11- locking nut.
Embodiment
As shown in Figure 1, a kind of liquid nitrogen pump comprises the pump housing, automatic constant-temperature heater 2, heat insulating device 3 and liquid-discharging tube 8.Be evenly distributed with outlet valve 4, safety exhaust 6, pressure gauge 7 and pressure control power switch 5 on the pump housing, its upper inside wall links to each other with heat insulating device 3, and its bottom is provided with O-ring seal I 10; Be inserted with liquid-discharging tube 8 in the heat insulating device 3, the top of this liquid-discharging tube 8 is provided with lifting rate control valve 9, and automatic constant-temperature heater 2 and fixing is with it then passed in its bottom; Pressure control power switch 5 links to each other with automatic constant-temperature heater 2; O-ring seal I 10 is provided with locking nut 11, and this locking nut 11 links to each other with the pump housing.
Wherein:
Automatic constant-temperature heater 2 is cylindrical shape, and its top center is provided with liquid-discharging tube pore I 2-1 and threading hole 2-2, and its bottom centre is provided with liquid-discharging tube pore II 2-3, and its inner disk is wound with the electric heating wire 2-4 of 25000～30000J/min.Electric heating wire 2-4 is connected with power line 2-5, and this power line 2-5 passes threading hole 2-2 and links to each other with pressure control power switch 5; Liquid-discharging tube 8 passes liquid-discharging tube pore I 2-1 and liquid-discharging tube pore II 2-3 and fixes (referring to Fig. 2) with it.
Heat-insulating and sealing bracket I 3-1, heat-insulating and sealing bracket I I 3-2, support extension 3-3 all adopt and gather fluorine tetrem alkene as thermal-protective material.
During use, the present invention is inserted in the liquid nitrogen biological container 1, rotate in the direction of the clock with hand and tighten locking nut 11, make O-ring seal I 10 that the neck tube of the present invention and liquid nitrogen biological container 1 is sealed.
When needs stopped fluid, closing pressure control power switch 5 was opened outlet valve 4, and then liquid nitrogen stops to pump automatically; When the liquid nitrogen emptying, only need powered-down, open outlet valve 4, unclamp locking nut 11 by rotation counterclockwise, then can the present invention be taken out from liquid nitrogen biological container 1, can carry out the dress that dashes of next bottle liquid nitrogen.
Claims (4)
1. liquid nitrogen pump, it is characterized in that: this pump comprises the pump housing, automatic constant-temperature heater (2), heat insulating device (3) and liquid-discharging tube (8); Be evenly distributed with outlet valve (4), safety exhaust (6), pressure gauge (7) and pressure control power switch (5) on the said pump housing, its upper inside wall links to each other with said heat insulating device (3), and its bottom is provided with O-ring seal I (10); Be inserted with said liquid-discharging tube (8) in the said heat insulating device (3), the top of this liquid-discharging tube (8) is provided with lifting rate control valve (9), and said automatic constant-temperature heater (2) and fixing is with it then passed in its bottom; Said pressure control power switch (5) links to each other with said automatic constant-temperature heater (2); Said O-ring seal I (10) is provided with locking nut (11), and this locking nut (11) links to each other with the said pump housing.
2. liquid nitrogen pump as claimed in claim 1; It is characterized in that: said automatic constant-temperature heater (2) is cylindrical shape; Its top center is provided with liquid-discharging tube pore I (2-1) and threading hole (2-2); Its bottom centre is provided with liquid-discharging tube pore II (2-3), and its inner disk is wound with the electric heating wire (2-4) of 25000～30000J/min; Said electric heating wire (2-4) is connected with power line (2-5), and this power line (2-5) passes said threading hole (2-2) and links to each other with said pressure control power switch (5); Said liquid-discharging tube (8) passes said liquid-discharging tube pore I (2-1) and said liquid-discharging tube pore II (2-3) and fixing with it.
3. liquid nitrogen pump as claimed in claim 1 is characterized in that: said heat insulating device (3) comprises heat-insulating and sealing bracket I (3-1), heat-insulating and sealing bracket I I (3-2) and is the support extension (3-3) of undergauge; The outer wall of said heat-insulating and sealing bracket I I (3-2) is connected with the inner thread of the said pump housing, is provided with O-ring seal II (3-4) between its bottom and the said pump housing; The outer wall of said heat-insulating and sealing bracket I (3-1) is connected with the inner thread of said heat-insulating and sealing bracket I I (3-2), and its part inwall contacts with said liquid-discharging tube (8); The bottom of said heat-insulating and sealing bracket I I (3-2) is provided with said support extension (3-3), and this support extension (3-3) contacts with said liquid-discharging tube (8); Be provided with O-ring seal III (3-5) between said heat-insulating and sealing bracket I (3-1) and said support extension (3-3) and the said liquid-discharging tube (8).
4. liquid nitrogen pump as claimed in claim 4 is characterized in that: said heat-insulating and sealing bracket I (3-1), heat-insulating and sealing bracket I I (3-2), support extension (3-3) all adopt and gather fluorine tetrem alkene as thermal-protective material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102970362A CN102410261A (en) | 2010-09-26 | 2010-09-26 | Liquid nitrogen pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102970362A CN102410261A (en) | 2010-09-26 | 2010-09-26 | Liquid nitrogen pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102410261A true CN102410261A (en) | 2012-04-11 |
Family
ID=45912521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102970362A Pending CN102410261A (en) | 2010-09-26 | 2010-09-26 | Liquid nitrogen pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102410261A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560622A (en) * | 2015-10-06 | 2017-04-12 | 熵零股份有限公司 | Supply system |
| CN111188751A (en) * | 2020-01-16 | 2020-05-22 | 重庆贝纳吉液氮生物容器有限公司 | Intelligent liquid nitrogen pump and method for pumping liquid nitrogen |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313306A (en) * | 1980-04-21 | 1982-02-02 | Torre Douglas P | Liquified gas withdrawal apparatus |
| US5488831A (en) * | 1994-10-06 | 1996-02-06 | Griswold; Thomas A. | Liquid cryogen withdrawal device |
| CN2244664Y (en) * | 1995-12-05 | 1997-01-08 | 罗菲尔(天津)医学工程有限公司 | Air-pressure apparatus for filling nitrogen |
| CN2660523Y (en) * | 2003-12-12 | 2004-12-01 | 北京交通大学 | Low dimensional material thermal expansion coefficient measurer |
| CN201547487U (en) * | 2009-10-21 | 2010-08-11 | 宝山钢铁股份有限公司 | Automatic liquid nitrogen transfer controller |
| CN201786773U (en) * | 2010-09-26 | 2011-04-06 | 中国科学院兰州地质研究所 | Liquid nitrogen pump |
-
2010
- 2010-09-26 CN CN2010102970362A patent/CN102410261A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313306A (en) * | 1980-04-21 | 1982-02-02 | Torre Douglas P | Liquified gas withdrawal apparatus |
| US5488831A (en) * | 1994-10-06 | 1996-02-06 | Griswold; Thomas A. | Liquid cryogen withdrawal device |
| CN2244664Y (en) * | 1995-12-05 | 1997-01-08 | 罗菲尔(天津)医学工程有限公司 | Air-pressure apparatus for filling nitrogen |
| CN2660523Y (en) * | 2003-12-12 | 2004-12-01 | 北京交通大学 | Low dimensional material thermal expansion coefficient measurer |
| CN201547487U (en) * | 2009-10-21 | 2010-08-11 | 宝山钢铁股份有限公司 | Automatic liquid nitrogen transfer controller |
| CN201786773U (en) * | 2010-09-26 | 2011-04-06 | 中国科学院兰州地质研究所 | Liquid nitrogen pump |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560622A (en) * | 2015-10-06 | 2017-04-12 | 熵零股份有限公司 | Supply system |
| CN111188751A (en) * | 2020-01-16 | 2020-05-22 | 重庆贝纳吉液氮生物容器有限公司 | Intelligent liquid nitrogen pump and method for pumping liquid nitrogen |
| CN111188751B (en) * | 2020-01-16 | 2024-01-26 | 重庆贝纳吉液氮生物容器有限公司 | Method for extracting liquid nitrogen |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |