CN210221191U - Liquid nitrogen detects and emptys isolated plant - Google Patents
Liquid nitrogen detects and emptys isolated plant Download PDFInfo
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- CN210221191U CN210221191U CN201921375572.2U CN201921375572U CN210221191U CN 210221191 U CN210221191 U CN 210221191U CN 201921375572 U CN201921375572 U CN 201921375572U CN 210221191 U CN210221191 U CN 210221191U
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Abstract
The utility model discloses a liquid nitrogen detects and emptys isolated plant, its technical scheme main points are: including the liquid nitrogen container body that is used for depositing the sample, carry out sealed lid, the perforation hole of setting on the lid to the open end of liquid nitrogen container body, set up this internal level gauge of liquid nitrogen container and with lid integrated into one piece's water conservancy diversion subassembly through the perforation hole, the water conservancy diversion subassembly is used for carrying out the drainage to the liquid nitrogen that supplements in this body of liquid nitrogen container. The utility model relates to a liquid nitrogen detects and emptys isolated plant and carries out real-time detection through the level gauge to this internal liquid nitrogen surplus of liquid nitrogen container to the staff of being convenient for carries out timely replenishment to the liquid nitrogen through the water conservancy diversion subassembly according to the liquid nitrogen surplus, has easy operation and labour saving and time saving's characteristics, and then effectual improvement the utility model discloses a use the precision.
Description
Technical Field
The utility model relates to the field of medical supplies and instruments, in particular to liquid nitrogen detects and emptys isolated plant.
Background
In clinical work and experiments, cells or tissues are frequently required to be frozen by liquid nitrogen, the liquid nitrogen is ultralow-temperature liquid at-195 ℃ and needs to be placed in a special liquid nitrogen tank, but the liquid nitrogen is easy to volatilize, so that the tank opening of a common liquid nitrogen tank is small. Liquid nitrogen needs to be added after the liquid nitrogen tank placed at normal temperature is used for one or two weeks, and as the liquid nitrogen volatilizes, once the frozen tissue is higher than the liquid level tissue of the liquid nitrogen, the frozen tissue loses effectiveness to cause huge loss; when liquid nitrogen is added, the liquid nitrogen is poured into the other liquid nitrogen tank from one liquid nitrogen tank, but the pouring difficulty is high due to the small tank opening, and operators are often burnt by the phenomenon of liquid nitrogen splashing, so that the method is very unsafe;
chinese patent with publication number CN207569530U now discloses a liquid nitrogen detection device, which includes: the body is a pipe body, and the inner wall of the end part is annularly provided with steps; at least one conversion body inserted in one end port of the body, with the outer wall at the back end being provided with a step capable of being fixed on the step at the end of the body, the conversion body being provided with a conical central channel along the axial direction, the inlet caliber being larger than the outlet caliber; the detection sensing device is arranged in the body and is opposite to the outlet of the conversion body in the body; at least one sealing cover, which comprises a cover body and a liquid nitrogen inlet and outlet pipe positioned in the center of the outer end surface of the cover body; the cover body is covered at the end part of the body; and the diameter of the stop ball is larger than the caliber of the outlet of the conversion body and the inner diameter of the liquid nitrogen inlet and outlet pipe.
However, when the conventional detection device is used, due to the special design of the liquid nitrogen tank, the liquid nitrogen tank with the specimen is inconvenient to supplement liquid nitrogen and observe the residual amount of liquid nitrogen in the liquid nitrogen tank with the specimen; and after the cover is opened, the inside of the cover is provided with volatile nitrogen, so that the residual liquid nitrogen in the liquid nitrogen level cannot be obtained at all.
SUMMERY OF THE UTILITY MODEL
To the problem of mentioning in the background art, the utility model aims at providing a liquid nitrogen detects and emptys isolated plant to solve the problem of mentioning in the background art.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a special device for detecting and pouring liquid nitrogen comprises a liquid nitrogen tank body for storing a sample, a cover body for sealing the open end of the liquid nitrogen tank body, a through hole arranged on the cover body, a liquid level meter arranged in the liquid nitrogen tank body through the through hole and a flow guide assembly integrally formed with the cover body, wherein the flow guide assembly is used for guiding liquid nitrogen supplemented into the liquid nitrogen tank body;
the flow guide assembly comprises a flow guide pipe penetrating through the cover body, a flow guide cylinder arranged at one end of the flow guide pipe and communicated with the flow guide pipe, and an adjusting valve arranged on the flow guide pipe, wherein the adjusting valve is used for opening and closing the flow guide pipe.
By adopting the technical scheme, the liquid nitrogen surplus in the liquid nitrogen tank body can be conveniently detected in real time through the liquid level meter, so that the liquid nitrogen can be conveniently supplemented by the staff in time according to the liquid nitrogen surplus through the flow guide assembly, and the liquid nitrogen detection device has the characteristics of simple operation, time saving and labor saving, and further the use precision of the liquid nitrogen detection device is effectively improved;
preferably, the cover body is connected with the opening end of the liquid nitrogen tank body through a threaded structure, the inner wall of the cover body is provided with internal threads, and the periphery of the opening end of the liquid nitrogen tank body is provided with external threads matched with the internal threads of the inner wall of the cover body.
By adopting the technical scheme, the cover body is conveniently connected with the liquid nitrogen tank body through the threaded structure, and the threaded structure has the characteristic of convenient assembly and disassembly, so that a sample in the liquid nitrogen tank body can be conveniently taken out, and the use precision of the liquid nitrogen tank is effectively improved;
preferably, the guide pipe is arranged in the middle of the cover body, penetrates through the cover body and is arranged in the liquid nitrogen tank body, and the distance between the guide pipe and one end of the liquid nitrogen tank body, which penetrates through the cover body, and the cover body is 45-50 mm.
By adopting the technical scheme, the supplemented liquid nitrogen is conveniently drained by utilizing the pressure generated by the height difference, so that the liquid nitrogen supplementing efficiency is effectively improved;
preferably, the guide cylinder is arranged in a bowl shape, and the minimum inner diameter of the opening end of the guide cylinder is larger than the outer diameter of the opening end of the liquid nitrogen tank body.
By adopting the technical scheme, the liquid nitrogen tank for supplementing liquid nitrogen is conveniently supported by the guide cylinder, and the supplemented liquid nitrogen is conveniently drained by the guide cylinder, so that the leakage of the liquid nitrogen in the supplementing process is effectively avoided, and the use precision of the liquid nitrogen supplementing device is effectively improved;
preferably, a heat-insulating interlayer is arranged in the guide cylinder, and the heat-insulating interlayer is one or more of rock wool products, asbestos wool, polyurethane or glass wool.
By adopting the technical scheme, the heat insulation effect of the heat insulation material is mainly determined by the heat conductivity coefficient of the heat insulation material, the higher the heat conductivity coefficient is, the faster the heat transfer effect is, so that the heat insulation effect is worse, the polyurethane has lower heat conductivity coefficient, is an ideal heat insulation material, and is convenient for effectively insulating the liquid nitrogen in the guide cylinder through the heat insulation interlayer, thereby effectively improving the use precision of the utility model;
preferably, the inner wall of the guide cylinder is provided with scale marks;
by adopting the technical scheme, the surplus of liquid nitrogen to be supplemented can be conveniently calculated through the scale line, so that the precision of supplementing the liquid nitrogen is effectively guaranteed, the amount of the liquid nitrogen to be supplemented can be conveniently stored through the guide cylinder, the adjusting valve is opened to enable the liquid nitrogen in the guide cylinder to enter the liquid nitrogen tank body with the sample, the volume of the liquid nitrogen tank body with the sample can be checked in real time through the liquid level meter, and when the liquid nitrogen in the guide cylinder completely enters the liquid nitrogen tank body, the adjusting valve is finished, so that the purpose of supplementing the liquid nitrogen is achieved;
preferably, the liquid level meter further comprises a first handle fixedly arranged on one side of the guide shell and a second handle arranged on the liquid level meter.
By adopting the technical scheme, the guide cylinder and the liquid level meter can be conveniently fixed and observed by a worker through the first handle and the second handle, so that the use precision of the liquid level meter is effectively improved;
to sum up, the utility model discloses mainly have following beneficial effect:
intracardiac hemostasis device for branch of academic or vocational study has convenient to use's advantage, and utilizes the level gauge to carry out real-time detection to this internal liquid nitrogen surplus of liquid nitrogen container to the staff of being convenient for carries out timely replenishment, and then effectual improvement to the liquid nitrogen through the water conservancy diversion subassembly the utility model discloses an use precision.
Drawings
Fig. 1 is a schematic structural view of a partial cross-sectional view of an explosion diagram of a special liquid nitrogen detection and dumping device according to the present invention;
FIG. 2 is a schematic structural view of the overall structure of a special device for liquid nitrogen detection and dumping of the present invention;
FIG. 3 is a schematic structural view of the semi-sectional view of FIG. 2 in a dedicated liquid nitrogen detection and dumping apparatus of the present invention;
fig. 4 is a schematic structural diagram of the front view of fig. 3 in the special liquid nitrogen detecting and pouring device of the present invention.
Reference numerals: the liquid nitrogen container comprises a liquid nitrogen container body 1, a cover body 2, a flow guide pipe 3, a regulating valve 4, a flow guide cylinder 5, a first handle 51, a perforation hole 6, a liquid level meter 7, a second handle 71 and a heat preservation interlayer 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and 3, a special device for detecting and pouring liquid nitrogen comprises a liquid nitrogen tank body 1 for storing a specimen, a cover body 2 for sealing an open end of the liquid nitrogen tank body 1, a through hole 6 arranged on the cover body 2, a liquid level meter 7 arranged in the liquid nitrogen tank body 1 through the through hole 6, and a flow guide assembly integrally formed with the cover body 2, wherein the flow guide assembly is used for guiding liquid nitrogen supplemented into the liquid nitrogen tank body 1; the liquid nitrogen residual in the liquid nitrogen tank body 1 can be detected in real time through the liquid level meter 7, so that the liquid nitrogen can be supplemented by the staff in time according to the liquid nitrogen residual through the flow guide assembly, the liquid nitrogen detection device has the characteristics of simple operation, time saving and labor saving, and the use precision of the liquid nitrogen detection device is effectively improved;
with specific reference to fig. 1, 2 and 3, the cover body 2 is connected with the open end of the liquid nitrogen tank body 1 through a thread structure, the inner wall of the cover body 2 is provided with an internal thread, the periphery of the open end of the liquid nitrogen tank body 1 is provided with an external thread matched with the internal thread of the inner wall of the cover body 2, so that the cover body 2 is conveniently connected with the liquid nitrogen tank body 1 through the thread structure, and the thread structure has the characteristic of convenient disassembly and assembly, so that a sample in the liquid nitrogen tank body 1 can be conveniently taken out, and the use precision of the utility model is effectively improved;
specifically referring to fig. 3 and 4, the flow guide assembly includes a flow guide tube 3 penetrating through the cover body 2, a flow guide cylinder 5 disposed at one end of the flow guide tube 3 and communicated therewith, and an adjusting valve 4 disposed on the flow guide tube 3, wherein the adjusting valve 4 is used for opening and closing the flow guide tube 3, the flow guide tube 3 is disposed at the middle position of the cover body 2, the flow guide tube 3 penetrates through the cover body 2 and is disposed in the liquid nitrogen tank body 1, and one end of the flow guide tube 3 penetrating through the liquid nitrogen tank body 1 is disposed at a distance of 45mm to 50mm from the cover body 2, so that the pressure generated by the height difference can be used for guiding the supplemented liquid nitrogen, thereby effectively improving the efficiency;
referring to fig. 2 and fig. 3 specifically, the draft tube 5 is arranged in a "bowl" shape, the minimum inner diameter of the opening end of the draft tube 5 is larger than the outer diameter of the opening end of the liquid nitrogen tank body 1, so that the liquid nitrogen tank for supplementing liquid nitrogen is supported by the draft tube 5, and the supplemented liquid nitrogen is drained by the draft tube 5, thereby effectively avoiding the leakage of liquid nitrogen in the supplementing process, and effectively improving the use precision of the utility model;
referring to fig. 4 specifically, a heat insulation interlayer 8 is arranged in the draft tube 5, the heat insulation interlayer 8 is one or more of rock wool products, asbestos wool, polyurethane or glass wool, the heat insulation effect of the heat insulation material is measured mainly by the heat conductivity coefficient of the heat insulation material, the higher the heat conductivity coefficient is, the faster the heat transfer effect is, the poorer the heat insulation effect is, the lower the heat conductivity coefficient is, the polyurethane has a relatively ideal heat insulation material, and further, the heat insulation of the liquid nitrogen in the draft tube 5 is effectively performed through the heat insulation interlayer 8, so that the use precision of the utility model is effectively improved; the inner wall of the guide cylinder 5 is provided with scale marks, so that the surplus of liquid nitrogen to be supplemented can be calculated conveniently through the scale marks, the precision of supplementing the liquid nitrogen is effectively guaranteed, the amount of the liquid nitrogen to be supplemented can be stored conveniently through the guide cylinder 5, the adjusting valve 4 is opened to enable the liquid nitrogen in the guide cylinder 5 to enter the liquid nitrogen tank body 1 with the sample, the volume of the liquid nitrogen tank body 1 with the sample can be checked in real time through the liquid level meter 7, and when the liquid nitrogen in the guide cylinder 5 completely enters the liquid nitrogen tank body 1, the adjusting valve 4 is finished, so that the purpose of supplementing the liquid nitrogen is achieved;
with specific reference to fig. 2 and 4, the utility model further comprises a first handle 51 fixedly arranged on one side of the draft tube 5 and a second handle 71 arranged on the liquid level meter 7, so that the worker can conveniently fix and observe the draft tube 5 and the liquid level meter 7 respectively through the first handle 51 and the second handle 71, thereby effectively improving the use precision of the utility model;
specifically referring to fig. 1, 2 and 3, the liquid level meter 7 is a liquid nitrogen level meter, which indicates the liquid level according to the buoyancy principle that the float is internally provided with magnetic steel to drive the turning of the two-color thin sheet, the float moves up and down in the measuring tube along with the lifting of the liquid level, the permanent magnetic steel in the float drives the red and white turning columns to turn over 180 through the magnetic coupling effect, when the liquid level rises, the turning columns turn from white to red, and when the liquid level falls, the turning columns turn from red to white, so that the indication of the liquid level is realized, and the liquid nitrogen allowance in the liquid nitrogen tank body 1 with the sample can be observed by the staff conveniently.
The working principle is as follows: the utility model discloses a set up the liquid nitrogen container body 1 used for depositing the sample, carry out the lid 2 sealed to the open end of liquid nitrogen container body 1, the perforation hole 6 that sets up on lid 2, set up the level gauge 7 in liquid nitrogen container body 1 and the water conservancy diversion subassembly of integrated into one piece with lid 2 through perforation hole 6, the water conservancy diversion subassembly is used for carrying on the drainage to the liquid nitrogen that supplements in the liquid nitrogen container body 1; and then be convenient for carry out real-time detection to the liquid nitrogen surplus in the liquid nitrogen container body 1 through level gauge 7 to the staff of being convenient for carries out timely replenishment to the liquid nitrogen through the water conservancy diversion subassembly according to the liquid nitrogen surplus, has easy operation and labour saving and time saving's characteristics, and then effectual improvement the utility model discloses a use precision.
The using method comprises the following steps: carry out real-time detection through level gauge 7 to the liquid nitrogen surplus in the liquid nitrogen container body 1, because 5 inner walls of draft tube are provided with the scale mark, and then be convenient for calculate the surplus that needs supply the liquid nitrogen through the scale mark, thereby the effectual precision of complementing the liquid nitrogen of having guaranteed, and then be convenient for save the liquid nitrogen volume that needs the replenishment through draft tube 5, open governing valve 4 and make the liquid nitrogen in the draft tube 5 enter into the liquid nitrogen container body 1 that has the sample, and look over the volume of the liquid nitrogen container body 1 that has the sample in real time through level gauge 7, when liquid nitrogen in draft tube 5 enters into liquid nitrogen container body 1 completely, governing valve 4 finishes, thereby reach the purpose of complementing the liquid nitrogen.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a liquid nitrogen detects and emptys isolated plant, includes liquid nitrogen container body (1) that is used for depositing the sample, its characterized in that: further comprising: the liquid nitrogen filling device comprises a cover body (2) for sealing the opening end of a liquid nitrogen tank body (1), a through hole (6) formed in the cover body (2), a liquid level meter (7) arranged in the liquid nitrogen tank body (1) through the through hole (6), and a flow guide assembly integrally formed with the cover body (2), wherein the flow guide assembly is used for guiding liquid nitrogen supplemented into the liquid nitrogen tank body (1);
the flow guide assembly comprises a flow guide pipe (3) penetrating through the cover body (2), a flow guide cylinder (5) arranged at one end of the flow guide pipe (3) and communicated with the flow guide pipe, and a regulating valve (4) arranged on the flow guide pipe (3), wherein the regulating valve (4) is used for switching the flow guide pipe (3).
2. The apparatus as claimed in claim 1, wherein the apparatus comprises: the cover body (2) is connected with the open end of the liquid nitrogen tank body (1) through a threaded structure, internal threads are arranged on the inner wall of the cover body (2), and external threads matched with the internal threads on the inner wall of the cover body (2) are arranged on the periphery of the open end of the liquid nitrogen tank body (1).
3. The apparatus as claimed in claim 2, wherein the apparatus comprises: the liquid nitrogen container is characterized in that the guide pipe (3) is arranged in the middle of the cover body (2), the guide pipe (3) penetrates through the cover body (2) and is arranged in the liquid nitrogen container body (1), and the distance between the guide pipe (3) and one end of the liquid nitrogen container body (1) is 45mm-50m from the cover body (2).
4. The apparatus as claimed in claim 3, wherein the apparatus comprises: the guide shell (5) is bowl-shaped, and the minimum inner diameter of the opening end of the guide shell (5) is larger than the outer diameter of the opening end of the liquid nitrogen tank body (1).
5. The apparatus as claimed in claim 4, wherein the apparatus comprises: be provided with heat preservation intermediate layer (8) in draft tube (5), heat preservation intermediate layer (8) set up to rock wool goods, asbestos fine hair, polyurethane or glass cotton wherein one or more, draft tube (5) inner wall is provided with the scale mark.
6. The apparatus as claimed in claim 5, wherein the apparatus comprises: in addition, the liquid level meter also comprises a first handle (51) fixedly arranged on one side of the guide shell (5) and a second handle (71) arranged on the liquid level meter (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921375572.2U CN210221191U (en) | 2019-08-23 | 2019-08-23 | Liquid nitrogen detects and emptys isolated plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921375572.2U CN210221191U (en) | 2019-08-23 | 2019-08-23 | Liquid nitrogen detects and emptys isolated plant |
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| Publication Number | Publication Date |
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| CN210221191U true CN210221191U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921375572.2U Active CN210221191U (en) | 2019-08-23 | 2019-08-23 | Liquid nitrogen detects and emptys isolated plant |
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| CN (1) | CN210221191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610880A (en) * | 2020-12-01 | 2021-04-06 | 王勤智 | Liquid nitrogen storage dumping device |
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2019
- 2019-08-23 CN CN201921375572.2U patent/CN210221191U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610880A (en) * | 2020-12-01 | 2021-04-06 | 王勤智 | Liquid nitrogen storage dumping device |
| CN112610880B (en) * | 2020-12-01 | 2022-09-23 | 廊坊黎明气体有限公司 | Liquid nitrogen storage dumping device |
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