CN205244837U - Special liquid level chi of liquid nitrogen container - Google Patents
Special liquid level chi of liquid nitrogen container Download PDFInfo
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- CN205244837U CN205244837U CN201521119337.0U CN201521119337U CN205244837U CN 205244837 U CN205244837 U CN 205244837U CN 201521119337 U CN201521119337 U CN 201521119337U CN 205244837 U CN205244837 U CN 205244837U
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- liquid level
- liquid nitrogen
- nitrogen container
- stationary magazine
- magazine creel
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Abstract
The utility model discloses a special liquid level chi of liquid nitrogen container contains: accept the catheter of first floater at its inner tube, the connecting rod of connecting the catheter top, second floater with connecting rod top fixed connection, and accept the stationary magazine creel of second floater should the outside of stationary magazine creel sets up a vacuum cover, the outside of vacuum cover is provided with the indication mechanism for the disclosing solution bit depth, the top of second floater sets up the illuminator that the level was arranged, stationary magazine creel, vacuum cover and indication mechanism along the ray direction that the illuminator sent has a translucent construction, the 2nd translucent construction and the 3rd translucent construction that can see through light respectively. Through illuminator implementation directive scale, simple structure changes easy maintenance.
Description
Technical field
The utility model relates to ultralow temperature level measuring instrument equipment technical field, the special liquid level ruler of especially a kind of liquid nitrogen container.
Background technology
Liquid nitrogen is the liquid state of nitrogen, and under normal pressure, temperature is-196 DEG C. Due to its low-temperature physics characteristic and chemical inertness, liquid nitrogen can be for as deep refrigerating agent, and at frozen food, biomedicine, in freezing research and superconductor applications, has a wide range of applications. The Dewar bottle that stores in actual applications liquid nitrogen is nontransparent low
Temperature container, because the boiling point of liquid nitrogen is very low, under normal temperature, liquid nitrogen is in ceaselessly evaporation, and liquid level top aerosol mixes, and liquid level impalpable is difficult to grasp in time the liquid level of liquid nitrogen in Dewar bottle, ensures good low temperature environment. For the ease of realizing detection and the control to liquid nitrogen fluid level condition, need a kind of simple and reliable liquid level data harvester and monitoring system.
Common liquid level gauge is the reason such as its large, mounting or dismounting difficulty of conducting heat, frosting, low-temperature embrittleness, electrostatic accumulation as floating ball lever meter and glass plate type leveler, is not suitable for the level gauging of cryogenic liquid; And the application of flange form diaphragm pressure sensor is subject to the undesirable restriction of the cryogenic property of sensor information silicone oil. Use at present more differential pressure type level gauge, also because its high pressure chest directly communicates with minimum liquid level point in storage tank, in the time measuring cryogenic liquid liquid level, cryogenic liquid flows out heat insulation storage tank and enters after the liquid phase guiding tube and instrument being exposed in atmosphere, absorbs heat gasification, makes to manage the interior generation gas-liquid phenomenon that coexists, be difficult to accurate reading, and this gas-liquid unstable, the small inducement that coexists can cause the significantly concussion of intraluminal fluid face, be not therefore suitable for the level gauging of cryogenic liquid.
For this reason, also occur based on vacuum heat-insulation principle and magnetic and turn the liquid level gauge that principle etc. is made, this class liquid level gauge has solved the problem that easily causes frosting, improves certainty of measurement.
But, utilize magnetic to turn the liquid level gauge that principle forms, it uses structure comparatively complicated, and cost is high, and is unfavorable for maintain and replace.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model proposes the special liquid level ruler of a kind of liquid nitrogen container, be intended to, ensureing the simplified lower simplified structure of certainty of measurement, reduce costs, and realize convenient for maintaining and change.
In order to solve above-mentioned technical problem, the basic technical scheme the utility model proposes is: the special liquid level ruler of a kind of liquid nitrogen container, comprises:
Accommodate the first ball float catheter of pipe therein;
Connect the connecting rod at catheter top;
The second ball float being fixedly connected with connecting rod top; And
Accommodate the stationary magazine creel of described the second ball float, arranged outside one vacuum envelope of stationary magazine creel described in this;
There is to show the indication mechanism of the liquid level degree of depth in the arranged outside of described vacuum envelope;
On the top of described the second ball float, horizontally disposed photophore is set, the radiation direction that described stationary magazine creel, vacuum envelope and indication mechanism send along described photophore has respectively the first translucent construction, the second translucent construction and the 3rd translucent construction of energy transmitted light;
The junction of described catheter and stationary magazine creel is provided with insulation mechanism;
The first moisture absorption mechanism is set above insulation mechanism in order to adsorb the moisture of liquid nitrogen container evaporation;
The second moisture absorption mechanism is set below described photophore.
Further, described photophore connects a power switch by electric wire, and this power switch is placed in described stationary magazine creel outside.
Further, described photophore is laser instrument.
Further, described first, second and third translucent construction is lucite.
Further, described indication mechanism comprises the scale that is arranged at described the 3rd translucent construction.
Further, described first, second and third translucent construction is belt structure.
Further, described insulation mechanism comprises inorfil.
Further, the medial surface coating inorganic fibrage of described stationary magazine creel is in order to heat insulation.
Further, described first and second moisture absorption mechanism comprises the moisture absorption layer that polyacrylamide hygroscopic material forms.
The beneficial effects of the utility model are:
The utility model is realized indicating graduation by photophore, simple in structure, and repair and replacement are convenient; And cost is low. In addition, at stationary magazine creel and catheter, the first moisture absorption mechanism and insulation mechanism are set, have ensured not produce fog, frosting in fixing bucket.
Brief description of the drawings
Fig. 1 is the profile schematic diagram of the special liquid level ruler of liquid nitrogen container of the present utility model;
Fig. 2 is the cutaway view of the liquid level ruler described in Fig. 1.
Detailed description of the invention
Below with reference to accompanying drawing 1 to accompanying drawing 2, the utility model is described further, but should limit protection domain of the present utility model with this.
The special liquid level ruler of a kind of liquid nitrogen container of the utility model, comprises: accommodate the first ball float 10 catheter 20 of pipe therein; Connect the connecting rod 30 at catheter 20 tops; The second ball float 40 being fixedly connected with connecting rod 30 tops; And accommodate the stationary magazine creel 50 of described the second ball float 40, arranged outside one vacuum envelope 60 of stationary magazine creel 50 described in this; There is to show the indication mechanism 70 of the liquid level degree of depth in the arranged outside of described vacuum envelope 60;
On the top of described the second ball float 40, horizontally disposed photophore 80 is set, the radiation direction that described stationary magazine creel 50, vacuum envelope 60 and indication mechanism 70 send along described photophore 80 has respectively the first translucent construction 501, the second translucent construction 601 and the 3rd translucent construction 701 of energy transmitted light;
The junction of described catheter 20 and stationary magazine creel 50 is provided with insulation mechanism 90;
The first moisture absorption mechanism 100 is set above insulation mechanism 90 in order to adsorb the moisture of liquid nitrogen container evaporation; The second moisture absorption mechanism 110 is set below described photophore 80.
Concrete, catheter 20 is for being positioned over liquid nitrogen container inside, to allow the liquid nitrogen in liquid nitrogen container flow into. The first ball float 10 also connects a spring in the top of the second ball float 40, the second ball floats 40 of side thereon by connecting rod 30 connection bits, and the other end of this spring is fixed on the inner top surface of stationary magazine creel 50, for preventing vibration. Because catheter 20 is to contact liquid nitrogen, can produce temperature difference in inside, there is heat conduction, thereby can produce frosting, therefore in order to address this problem, junction at catheter 20 and stationary magazine creel 50 arranges insulation mechanism 90, and this insulation mechanism 90 comprises inorfil, and inorfil has good incubation and thermal insulation function. In addition, first and second described moisture absorption mechanism 100,110 arranges moisture absorption layer that polyacrylamide hygroscopic material forms for adsorbing the water smoke of generation, avoids entering into translucent construction and hinders measurement.
Concrete, described photophore 80 connects a power switch 01 by electric wire, and this power switch 01 is placed in described stationary magazine creel 50 outsides. In the time need to measuring the liquid level of liquid nitrogen, catheter 20 is placed in liquid nitrogen container, now turn on the power switch 01, photophore 80 will produce light, realizes the numerical value on scale is positioned using this light as pointer functionality. Preferably, described photophore 80 is laser instrument, because the light that laser instrument produces can be good at focusing on and its hot spot can be very little, meets the scale of scale is positioned to mark. The first translucent construction 501, the second translucent construction 601 of vacuum envelope 60 and the rear direct projection of the 3rd translucent construction 701 of indication mechanism 70 that the light that photophore 80 produces passes through stationary magazine creel 50 are respectively to scale. Because scale is above-below direction setting, therefore first, second and third described translucent construction is that belt structure and this first, second and third translucent construction are lucite.
For further insulation, at the medial surface coating inorganic fibrage of described stationary magazine creel 50.
The utility model is than existing liquid level gauge, and it realizes the positional readings of scale by light, the more simple and accommodating displacement maintenance of structure.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change and revise above-mentioned embodiment. Therefore, the utility model is not limited to detailed description of the invention disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model. In addition,, although used some specific terms in this description, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (9)
1. the special liquid level ruler of liquid nitrogen container, comprises: accommodate the first ball float catheter of pipe therein; Connect the connecting rod at catheter top; The second ball float being fixedly connected with connecting rod top; And accommodate the stationary magazine creel of described the second ball float, arranged outside one vacuum envelope of stationary magazine creel described in this; The indication mechanism that has to show the liquid level degree of depth in the arranged outside of described vacuum envelope, is characterized in that:
On the top of described the second ball float, horizontally disposed photophore is set, the radiation direction that described stationary magazine creel, vacuum envelope and indication mechanism send along described photophore has respectively the first translucent construction, the second translucent construction and the 3rd translucent construction of energy transmitted light;
The junction of described catheter and stationary magazine creel is provided with insulation mechanism; The first moisture absorption mechanism is set above insulation mechanism in order to adsorb the moisture of liquid nitrogen container evaporation; The second moisture absorption mechanism is set below described photophore.
2. the special liquid level ruler of liquid nitrogen container as claimed in claim 1, is characterized in that: described photophore connects a power switch by electric wire, and this power switch is placed in described stationary magazine creel outside.
3. the special liquid level ruler of liquid nitrogen container as claimed in claim 1, is characterized in that: described photophore is laser instrument.
4. the special liquid level ruler of liquid nitrogen container as claimed in claim 1, is characterized in that: described first, second and third translucent construction is lucite.
5. the special liquid level ruler of liquid nitrogen container as claimed in claim 1, is characterized in that: described indication mechanism comprises the scale that is arranged at described the 3rd translucent construction.
6. the special liquid level ruler of liquid nitrogen container as claimed in claim 1, is characterized in that: described first, second and third translucent construction is that belt structure is due to printing opacity.
7. the special liquid level ruler of liquid nitrogen container as claimed in claim 1, is characterized in that: described insulation mechanism comprises inorfil.
8. the special liquid level ruler of liquid nitrogen container as claimed in claim 1, is characterized in that: the medial surface coating inorganic fibrage of described stationary magazine creel is in order to heat insulation.
9. the special liquid level ruler of liquid nitrogen container as claimed in claim 1, is characterized in that: described first and second moisture absorption mechanism comprises the moisture absorption layer that polyacrylamide hygroscopic material forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119337.0U CN205244837U (en) | 2015-12-30 | 2015-12-30 | Special liquid level chi of liquid nitrogen container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521119337.0U CN205244837U (en) | 2015-12-30 | 2015-12-30 | Special liquid level chi of liquid nitrogen container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205244837U true CN205244837U (en) | 2016-05-18 |
Family
ID=55943914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521119337.0U Active CN205244837U (en) | 2015-12-30 | 2015-12-30 | Special liquid level chi of liquid nitrogen container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205244837U (en) |
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2015
- 2015-12-30 CN CN201521119337.0U patent/CN205244837U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Boyu Inventor before: Zhang Jinbao |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170317 Address after: 200436 Shanghai, Jingan District Jiang Field Road No. 604, room 228, No. three Patentee after: Wonderful (Shanghai) Biotechnology Co., Ltd. Address before: 200000 Shanghai, Zhabei District Jiang Field Road No. 730, room 250, No. three Patentee before: Wonderful (Shanghai) Biotechnology Co., Ltd. |
|
| TR01 | Transfer of patent right |