CN201582557U - Liquid nitrogen transferring device - Google Patents
Liquid nitrogen transferring device Download PDFInfo
- Publication number
- CN201582557U CN201582557U CN2010201028317U CN201020102831U CN201582557U CN 201582557 U CN201582557 U CN 201582557U CN 2010201028317 U CN2010201028317 U CN 2010201028317U CN 201020102831 U CN201020102831 U CN 201020102831U CN 201582557 U CN201582557 U CN 201582557U
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- sealing plug
- liquid nitrogen
- liquid
- level sensor
- transferring device
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Abstract
The utility model relates to a liquid transferring device, in particular to a liquid nitrogen transferring device suctioned by negative pressure, comprising a sealing plug; the sealing plug is provided with a liquid suctioning pipe and a gas suctioning pipe which penetrate through the sealing plug; the tail end of the gas suctioning pipe, extending out of the upper part of the sealing plug, is connected with a negative pressure suction unit; a liquid level sensor is arranged below the sealing plug; the liquid suctioning pipe is provided with a valve switch; the negative pressure suctioning unit, the liquid level sensor and the valve switch are respectively and electrically connected with a control device by wires; and the upper edge of the sealing plug is provided with a ring-shaped rubber sealing cover. The liquid nitrogen transferring device has simple structure, convenient operation, is safe and reliable, guarantees the body health of an operator, is controllable for the adding amount of liquid nitrogen, and avoids the waste of liquid nitrogen.
Description
Technical field:
The utility model relates to a kind of liquid transfer device, especially a kind of liquid nitrogen transfer device that utilizes vacuum suction.
Background technique:
In the supplementary reproduction laboratory, adding liquid nitrogen in the sample holding vessel that stores embryo or gamete is breadboard routine work.Because the sample holding vessel does not seal fully, and need deposit or extract sample in jar, so the liquid nitrogen vaporization amount is very big, needs regular replenishment.At present, the still conventional method of manually toppling over that adopts of laboratory worker.Nitrogen storage tank weighs tens jin usually, and it is flat liquid nitrogen container will to be raised to jar mouthful horizontal saliva when manpower is toppled over, and this need consume great amount of manpower, even more serious is, there is very big potential safety hazard in this method of toppling over liquid nitrogen, and liquid nitrogen can often overflow and locate frostbite staff.In addition, all there is the shortcoming of blindly adding liquid nitrogen in aforesaid way, often occurs adding not enough or adds the excessive situation that causes the liquid nitrogen waste, so need a kind of safe and reliable and save the transfer device of liquid nitrogen resource.
The model utility content:
The utility model provides a kind of liquid nitrogen transfer device, and it is simple in structure, and is easy to operate, safe and reliable, can control the adding quantity of liquid nitrogen effectively, has solved problems of the prior art.
The utility model is to solve the problems of the technologies described above the technological scheme that is adopted to be: it comprises sealing plug, the pick-up tube and the sucking pipe that run through sealing plug are installed on the sealing plug, the end that stretches out the sucking pipe of sealing plug top links to each other with vacuum extractor, below sealing plug, be provided with liquid level sensor, be provided with valve switch on pick-up tube, vacuum extractor, liquid level sensor and valve switch are electrically connected with control gear by lead respectively; Top edge at sealing plug is provided with a ring-shaped rubber strip of paper used for sealing.
On sealing plug, also be provided with a suction tude that runs through sealing plug, on the suction tude above the sealing plug, be provided with the air pressure balance valve.
The utility model is simple in structure, during use, sealing plug is installed in the jar mouthful place of sample holding vessel with Jar opening sealer, and the ring-shaped rubber strip of paper used for sealing turned down tip upside down on jar a mouthful outside, play the purpose of enhanced leaktightness effect, pick-up tube is inserted in the liquid nitrogen container, open valve switch on the pick-up tube by control gear, start vacuum extractor, vacuum extractor makes in the sample holding vessel and produces negative pressure by the gas in the sucking pipe suction sample holding vessel, and then by the liquid nitrogen in the pick-up tube suction liquid nitrogen container, liquid nitrogen is entered in the sample holding vessel, whole liquid nitrogen transfer process need not operator and directly touches liquid nitrogen container, and handling safety is reliable, time saving and energy saving, guaranteed operator's health of human body; When treating that liquid nitrogen liquid level in the sample holding vessel rises to the liquid level sensor position, liquid level sensor sends signal to control gear, control gear sends control command according to this signal, the throttle down switch stops to aspirate liquid nitrogen, and close vacuum extractor simultaneously, stop to aspirate the gas in the sample holding vessel, guaranteed the controllability of liquid nitrogen adding quantity, avoided the waste of liquid nitrogen; Open the air pressure balance valve, the part air is entered in the sample holding vessel, recover the pressure in the sample holding vessel, disassemble sealing plug then, the liquid nitrogen that sample can be put into the sample holding vessel experimentizes, and is simple to operation, safe and reliable.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A portion structure for amplifying schematic representation among Fig. 1.
Among the figure, 1, sealing plug; 2, pick-up tube; 3, sucking pipe; 4, vacuum extractor; 5, liquid level sensor; 6, valve switch; 7, control gear; 8, ring-shaped rubber strip of paper used for sealing; 9, suction tude; 10, air pressure balance valve; 11, sample holding vessel; 12, liquid nitrogen container.
Embodiment:
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, the utility model is elaborated.
Shown in Fig. 1～2, the utility model comprises sealing plug 1, the pick-up tube 2 and the sucking pipe 3 that run through sealing plug 1 are installed on the sealing plug 1, the end that stretches out the sucking pipe 3 of sealing plug 1 top links to each other with vacuum extractor 4, below sealing plug 1, be provided with liquid level sensor 5, be provided with valve switch 6 on pick-up tube 2, vacuum extractor 4, liquid level sensor 5 and valve switch 6 are electrically connected with control gear 7 by lead respectively; Top edge at sealing plug 1 is provided with a ring-shaped rubber strip of paper used for sealing 8.
On sealing plug 1, also be provided with a suction tude 9 that runs through sealing plug, on the suction tude above the sealing plug 19, be provided with air pressure balance valve 10.
In the work, when the amount of liquid nitrogen in the sample holding vessel 11 need be replenished, the jar mouthful place that at first sealing plug 1 is installed in sample holding vessel 11 was Jar opening sealer, and ring-shaped rubber strip of paper used for sealing 8 turned down tipped upside down on jar a mouthful outside, played the purpose of enhanced leaktightness effect.Pick-up tube 2 below sealing plug 1 stretches in the sample holding vessel 11, the pick-up tube 2 that stretch out sealing plug 1 top is inserted in the liquid nitrogen container 12, open valve switch 6 on the pick-up tube 2 by control gear 7, and start vacuum extractor 4 simultaneously, vacuum extractor 4 is by the gas in the sucking pipe 3 suction sample holding vessels 11, make in the sample holding vessel 11 and produce negative pressure, and then by the liquid nitrogen in the pick-up tube 2 suction liquid nitrogen containers 12, liquid nitrogen is entered in the sample holding vessel 11, replenish the amount of liquid nitrogen in the sample holding vessel 11.Whole liquid nitrogen transfer process need not operator and directly touches liquid nitrogen container 12, and handling safety is reliable, and is time saving and energy saving, guaranteed operator's health of human body, avoids being subjected to the liquid nitrogen injury.When treating that amount of liquid nitrogen in the sample holding vessel 11 meets the demands, be that the liquid nitrogen liquid level is when rising to the position of liquid level sensor 5, liquid level sensor 5 sends signal to control gear 7, control gear 7 sends control command according to this signal, throttle down switch 6 stops to aspirate liquid nitrogen, and closes vacuum extractor 4 simultaneously, stops to aspirate the gas in the sample holding vessel 11, guarantee the controllability of liquid nitrogen adding quantity, avoided the waste of liquid nitrogen.Then, open air pressure balance valve 10, air is entered in the sample holding vessel 11 through suction tude 9, recover the gas pressure in the sample holding vessel, disassemble sealing plug 1 then, the liquid nitrogen that operator can put into sample sample holding vessel 11 experimentizes.Use the utility model liquid nitrogen transfer device adds liquid nitrogen in sample holding vessel 11, simple to operation, safe and reliable, has guaranteed operator's health of human body, and the liquid nitrogen adding quantity is controlled, has avoided the waste of liquid nitrogen.
The utility model does not describe part in detail, is those skilled in the art of the present technique's known technology.
Claims (2)
1. liquid nitrogen transfer device, it is characterized in that: comprise sealing plug, the pick-up tube and the sucking pipe that run through sealing plug are installed on the sealing plug, the end that stretches out the sucking pipe of sealing plug top links to each other with vacuum extractor, below sealing plug, be provided with liquid level sensor, be provided with valve switch on pick-up tube, vacuum extractor, liquid level sensor and valve switch are electrically connected with control gear by lead respectively; Top edge at sealing plug is provided with a ring-shaped rubber strip of paper used for sealing.
2. a kind of liquid nitrogen transfer device according to claim 1 is characterized in that: also be provided with a suction tude that runs through sealing plug on sealing plug, be provided with the air pressure balance valve on the suction tude above the sealing plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201028317U CN201582557U (en) | 2010-01-28 | 2010-01-28 | Liquid nitrogen transferring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201028317U CN201582557U (en) | 2010-01-28 | 2010-01-28 | Liquid nitrogen transferring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201582557U true CN201582557U (en) | 2010-09-15 |
Family
ID=42724556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201028317U Expired - Fee Related CN201582557U (en) | 2010-01-28 | 2010-01-28 | Liquid nitrogen transferring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201582557U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089179A (en) * | 2014-07-11 | 2014-10-08 | 上海市特种设备监督检验技术研究院 | Emergent tank reversing device and method for accident tank |
| CN105036048A (en) * | 2014-11-26 | 2015-11-11 | 安徽嘉智信诺化工有限公司 | Automatic vacuum material taking device |
| CN107289327A (en) * | 2017-07-31 | 2017-10-24 | 华中科技大学 | A kind of liquid nitrogen buffering liquid supply device of multichannel rate controlling |
| CN110811914A (en) * | 2019-12-09 | 2020-02-21 | 中南百草原集团有限公司 | Method for extracting sperm from strong cattle |
-
2010
- 2010-01-28 CN CN2010201028317U patent/CN201582557U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089179A (en) * | 2014-07-11 | 2014-10-08 | 上海市特种设备监督检验技术研究院 | Emergent tank reversing device and method for accident tank |
| CN105036048A (en) * | 2014-11-26 | 2015-11-11 | 安徽嘉智信诺化工有限公司 | Automatic vacuum material taking device |
| CN105036048B (en) * | 2014-11-26 | 2017-09-29 | 安徽嘉智信诺化工股份有限公司 | A kind of automatic vacuum feeding device |
| CN107289327A (en) * | 2017-07-31 | 2017-10-24 | 华中科技大学 | A kind of liquid nitrogen buffering liquid supply device of multichannel rate controlling |
| CN110811914A (en) * | 2019-12-09 | 2020-02-21 | 中南百草原集团有限公司 | Method for extracting sperm from strong cattle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100915 Termination date: 20110128 |