CN206818275U - Low-temperature (low temperature) vessel and the pressure obtaning device for low-temperature (low temperature) vessel level gauging - Google Patents
Low-temperature (low temperature) vessel and the pressure obtaning device for low-temperature (low temperature) vessel level gauging Download PDFInfo
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- CN206818275U CN206818275U CN201720713940.4U CN201720713940U CN206818275U CN 206818275 U CN206818275 U CN 206818275U CN 201720713940 U CN201720713940 U CN 201720713940U CN 206818275 U CN206818275 U CN 206818275U
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- liquid phase
- pipeline
- phase pipeline
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- low
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- 239000007791 liquid phase Substances 0.000 claims abstract description 97
- 239000012071 phase Substances 0.000 claims abstract description 37
- 239000011490 mineral wool Substances 0.000 claims abstract description 18
- 239000011229 interlayer Substances 0.000 claims abstract description 16
- 238000013016 damping Methods 0.000 claims description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 41
- 239000007789 gas Substances 0.000 description 32
- 230000003068 static effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The utility model provides a kind of low-temperature (low temperature) vessel and the pressure obtaning device for low-temperature (low temperature) vessel level gauging.Low-temperature (low temperature) vessel includes inner pressurd vessel and the shell outside inner pressurd vessel, has interlayer between inner pressurd vessel and shell；Pressure obtaning device includes liquid phase joint, liquid phase pipeline and gas phase pipeline；Liquid phase pipeline includes the internal liquid phase pipeline and external liquid phase pipeline being connected, and internal liquid phase pipeline the inner is connected by liquid phase joint with the liquid Space of inner pressurd vessel；Gas phase pipeline includes the inside gas phase pipeline and Outside Vapor pipeline being connected, and internal gas phase pipeline connects with the gas-phase space of inner pressurd vessel；The internal liquid phase pipeline and the internal gas phase pipeline are located in the interlayer；The external liquid phase pipeline and the Outside Vapor pipeline are located at outside the shell, the mineral wool in the Outside Vapor pipeline and the external liquid phase pipeline filled with setting length.The utility model pressure obtaning device can improve the stability and accuracy of level gauging.
Description
Technical field
It the utility model is related to low-temperature (low temperature) vessel level gauging field, it is more particularly to a kind of for low-temperature (low temperature) vessel level gauging
Pressure obtaning device and the low-temperature (low temperature) vessel with the pressure obtaning device.
Background technology
The operation principle of differential pressure type level gauge is to measure liquid level using static pressure change caused by liquid level difference.It is right
In closed container, because its container has pressure in itself, so static pressure is the pressure that fluid column static pressure adds gas-phase space, to survey
Go out actual liquid level, just have to subtract the pressure of container in itself, so must just use differential pressure levelmeter, be just crimped on container
Bottom, negative pressure are connected on container top, and the differential pressure being achieved in that is exactly static pressure caused by actual liquid level, so as to converse liquid level height
Degree.
For cryogenic liquid tank lorries such as liquid oxygen, liquid nitrogen, liquid argon, LNG, cryogenic liquid is contained in the double shells tank body of closing
Interior, the level gauging in tank body typically uses differential pressure type level gauge, is respectively communicated with by gas phase pipeline and liquid phase pipeline in tank body
The liquid level gauge that the gas-phase space and liquid Space of container lead to gas-liquid phase pressure in tank outside tank realizes measurement.Due in tank body
What is filled is -196 ~ -162 DEG C of cryogenic liquid, and in pressure, cryogenic liquid enters with gasifying in gas, liquid pipeline, after gasification
Gas has certain pressure, forms gas shock, can cause liquid level gauge pressure difference rapid fluctuation up and down, so as to cause liquid level gauge to refer to
Pin is rocked, and thus liquid level in observation tank is made a big impact.
Utility model content
The purpose of this utility model is to provide a kind of pressure obtaning device for low-temperature (low temperature) vessel level gauging, to improve low temperature
Container carries out the stability and accuracy during level gauging using differential pressure type level gauge.
Another purpose of the present utility model is to provide a kind of low-temperature (low temperature) vessel with above-mentioned pressure obtaning device.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
According to one side of the present utility model, the utility model provides a kind of pressure for low-temperature (low temperature) vessel level gauging
Device, wherein, low-temperature (low temperature) vessel includes inner pressurd vessel and the shell outside inner pressurd vessel, has interlayer between inner pressurd vessel and shell；Institute
Stating pressure obtaning device includes liquid phase joint, liquid phase pipeline and gas phase pipeline；Liquid phase joint is arranged in the inner pressurd vessel bottom；Liquid phase connects
Head upper end is provided with the inlet opening with being communicated inside the inner pressurd vessel, and liquid phase joint lower end is located in the interlayer, and bottom side of the wall is set
There is the pressure port communicated with the inlet opening；Liquid phase pipeline includes the internal liquid phase pipeline and external liquid phase pipeline being connected, institute
State internal liquid phase pipeline the inner to be connected on the liquid phase joint, and be connected with the pressure port；Gas phase pipeline includes being connected
Logical inside gas phase pipeline and Outside Vapor pipeline, the internal gas phase pipeline connect with the gas-phase space of the inner pressurd vessel；Institute
State internal liquid phase pipeline and the internal gas phase pipeline is located in the interlayer；The external liquid phase pipeline and the Outside Vapor
Pipeline is located at outside the shell, the glass in the Outside Vapor pipeline and the external liquid phase pipeline filled with setting length
Cotton.
More preferably, the setting length is not less than 20cm.
More preferably, it is additionally provided with resistance in the both ends of the mineral wool in the Outside Vapor pipeline and the external liquid phase pipeline
Buddhist nun's block, the end face of the damping block are bonded with the mineral wool；The damping block has the damping hole for penetrating its length direction, institute
The internal diameter that damping block external diameter is stated with the Outside Vapor pipeline, the external liquid phase pipeline is adapted to.
More preferably, the pressure obtaning device also includes heat-conducting mechanism, and the heat-conducting mechanism is connected in the internal liquid phase pipeline
End and the shell, the shell heat is conducted to the internal liquid phase pipeline.
More preferably, the heat-conducting mechanism includes heat conduction copper wire, and the heat conduction copper wire is wound on the internal liquid phase pipeline
And fixed close to the liquid phase joint, the heat conduction copper wire with the shell.
More preferably, the heat-conducting mechanism also includes metallic plate；The heat conduction copper wire is wound on the metallic plate and welded
On the housing.
More preferably, the pressure port aperture is less than the inlet opening aperture.
More preferably, the liquid phase joint sets mounting hole on the outside of the pressure port, and the internal liquid phase pipeline stretches into this
Fix in mounting hole and be connected with the pressure port.
More preferably, the internal liquid phase pipeline and the internal gas phase pipeline in the interlayer inner disc around setting.
According to other side of the present utility model, the utility model also provides a kind of low-temperature (low temperature) vessel, including as described above
Pressure obtaning device.
As shown from the above technical solution, the utility model at least has the advantages that：It is of the present utility model
In pressure obtaning device, the mineral wool being filled in Outside Vapor pipeline and external liquid phase pipeline is squeezed to be formed irregularly in pipe
Shape, multiple tracks fold is formd, play a part of similar barrier wall, can effectively lengthen the path of internal gas flow circulation, drop
The impact energy of low-flow, prevent internal pressure unexpected fluctuation from being impacted to liquid level gauge pointer and cause liquid level gauge pointer violent
Rock, effectively improve the stability and accuracy of level gauging.
Further, by the setting of internal heat-conducting mechanism, make cryogenic liquid Quick-gasifying in liquid phase pipeline internally, match somebody with somebody
The mineral wool in exterior line is closed, stabilizes the airflow fluctuation in gas, liquid pipe from inside to outside, further improves level gauging
Stability.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model preferred embodiment low-temperature (low temperature) vessel and its internal pressure obtaning device.
Fig. 2 is the structural representation that the utility model preferred embodiment pressure obtaning device is located at low-temperature (low temperature) vessel housing exterior.
Fig. 3 is the internal structure schematic diagram of the utility model preferred embodiment pressure obtaning device external liquid phase pipeline.
Fig. 4 is partial enlarged drawing at A in the utility model Fig. 1.
Fig. 5 is the utility model Fig. 1 B direction views.
Description of reference numerals is as follows：10th, low-temperature (low temperature) vessel；1st, inner pressurd vessel；2nd, shell；3rd, interlayer；41st, gas phase joint；42nd, it is interior
Portion's gas phase pipeline；421st, coil pipe；43rd, Outside Vapor pipeline；44th, liquid phase joint；441st, inlet opening；442nd, pressure port；443rd, pacify
Fill hole；45th, internal liquid phase pipeline；451st, coil pipe；46th, external liquid phase pipeline；47th, mineral wool；48th, damping block；481st, damping hole；
49th, heat-conducting mechanism；491st, heat conduction copper wire；492nd, metallic plate；20th, liquid level gauge.
Embodiment
Embodying the exemplary embodiment of the utility model features and advantages will describe in detail in the following description.It should be understood that
Be that the utility model can have various changes in different embodiments, it does not all depart from model of the present utility model
Enclose, and explanation therein and diagram are treated as purposes of discussion in itself, and be not used to limit the utility model.
The utility model provides a kind of pressure obtaning device for low-temperature (low temperature) vessel level gauging and with the low of the pressure obtaning device
Warm container, the liquid level of the low-temperature (low temperature) vessel are measured by differential pressure type level gauge, and pressure obtaning device has gas phase pipeline and liquid phase pipeline,
So that the gas, liquid pressure of low-temperature (low temperature) vessel is led into differential pressure type level gauge respectively.
As shown in figure 1, low-temperature (low temperature) vessel 10 is double-deck horizontal (storage) tank, there is inner pressurd vessel 1 and the shell outside inner pressurd vessel 1
2, it is vacuum interlayer 3 between inner pressurd vessel 1 and shell 2.Inner pressurd vessel 1 and shell 2 use existing structure, have cylinder and positioned at cylinder
The end socket at body both ends.
Fig. 1 and Fig. 2 is referred in the lump, and the gas phase pipeline and liquid phase pipeline of pressure obtaning device both pass through the end socket of shell 2, with end socket
For boundary, gas phase pipeline is divided into the inside gas phase pipeline 42 in interlayer 3 and the Outside Vapor pipeline 43 outside shell 2,
Liquid phase pipeline is divided into the internal liquid phase pipeline 45 in interlayer 3 and the external liquid phase pipeline 46 outside shell 2.Internal gas phase
Pipeline 42 is connected with Outside Vapor pipeline 43, and internal liquid phase pipeline 45 is connected with external liquid phase pipeline 46.
The gas of the inner gas phase joint 41 and inner pressurd vessel 1 that the top of inner pressurd vessel 1 is arranged in by one of internal gas phase pipeline 42
Phase space connects, and the structure of gas phase joint 41 can use prior art.
Fig. 2 and Fig. 4 is referred in the lump, and the inner liquid phase that the bottom of inner pressurd vessel 1 is arranged in by one of internal liquid phase pipeline 45 connects
First 44 connect with the liquid Space of inner pressurd vessel 1.The upper end of liquid phase joint 44 is provided with the inlet opening 441 with being communicated inside inner pressurd vessel 1, liquid
The lower end of phase joint 44 is located in interlayer 3, and bottom side of the wall is provided with the pressure port 442 that is directly communicated with inlet opening 441 and positioned at taking
Press the mounting hole 443 in the outside of hole 442.The inner of internal liquid phase pipeline 45 is stretched into the mounting hole 443 and fixed, and and pressure port
442 are connected.Cryogenic liquid in inner pressurd vessel 1 can enter internal liquid phase pipe through inlet opening 441 and pressure port 442 successively
In road 45.More preferably, the aperture of pressure port 442 is less than the aperture of inlet opening 441, to reduce the liquid entered in internal liquid phase pipeline 45
Amount, and prevent the gas backstreaming after gasifying in internal liquid phase pipeline 45.
Refering to Fig. 2 and Fig. 3, Outside Vapor pipeline 43 and external liquid phase pipeline 46 are respectively used to connect differential pressure type level gauge 20
Gas, liquid interface, the mineral wool 47 in Outside Vapor pipeline 43 and external liquid phase pipeline 46 filled with setting length L, compared with
Excellently, setting length L is not less than 20cm.Mineral wool 47 can closely be filled in Outside Vapor pipe by the way of filling by hand
In road 43 and external liquid phase pipeline 46.
Mineral wool 47 is squeezed to form irregular shape in Outside Vapor pipeline 43 and external liquid phase pipeline 46, is formed
Multiple tracks fold, play a part of similar barrier wall, can effectively lengthen the path of internal gas flow circulation, reduce rushing for air-flow
Energy is hit, prevents internal pressure unexpected fluctuation from being impacted to the pointer of liquid level gauge 20 and causes the pointer of liquid level gauge 20 acutely to rock,
Effectively improve the stability and accuracy of level gauging.
With continued reference to Fig. 3, further, in Outside Vapor pipeline 43 and external liquid phase pipeline 46 in the both ends of mineral wool 47 also
Provided with damping block 48, the end face of damping block 48 is bonded with mineral wool 47；Damping block 48 has the damping hole for penetrating its length direction
481, the external diameter of damping block 48 is adapted to the internal diameter of corresponding Outside Vapor pipeline 43, external liquid phase pipeline 46.On damping block 48
Damping hole 481 reduces the throughput into liquid level gauge 20, further reduces the impact energy of air-flow, coordinates the resistance of mineral wool 47
Partition wall acts on, and further improves measurement stability.Meanwhile the damping block 48 at both ends also acts the effect of fixed mineral wool 47,
It is filled in Outside Vapor pipeline 43 and external liquid phase pipeline 46 with enabling the consolidation of mineral wool 47.
Referring again to Fig. 4, more preferably, pressure obtaning device also includes heat-conducting mechanism 49, and heat-conducting mechanism 49 connects internal liquid phase pipeline
45 inner and shells 2, the heat of shell 2 is passed to internal liquid phase pipeline 45.Because shell 2 contacts with external environment, pass through
Heat can be transferred on internal liquid phase pipeline 45 by shell 2 by heat-conducting mechanism 49, by the Low Temperature Liquid in internal liquid phase pipeline 45
Body Quick-gasifying, avoid liquid from internally forming fluid column in liquid phase pipeline 45, cause liquid level gauge reading to be forbidden.Simultaneously as lead
Heat engine structure 49 connects internal liquid phase pipeline 45, and the gas in internal liquid phase pipeline 45 after liquid gasification will not be back to inner pressurd vessel 1
It is interior, therefore bubble will not be formed in inner pressurd vessel 1, the liquid phase pressure acquired by internal liquid phase pipeline 45 can accurately reflect content
The actual liquid phase pressure of device 1.Heat-conducting mechanism 49 matches with the mineral wool 47 in Outside Vapor pipeline 43, external liquid phase pipeline 46
Close, stabilize the airflow fluctuation in gas, liquid pipeline from inside to outside, make that there is steady pressure in gas, liquid pipe, so as to improve liquid
The degree of accuracy of position meter measurement.
In the present embodiment, heat-conducting mechanism 49 includes heat conduction copper wire 491, the stage casing of heat conduction copper wire 491 internally liquid phase pipeline
A few are wound on 45, and close to liquid phase joint 44 at the winding of heat conduction copper wire 491, cryogenic liquid enters after internal liquid phase pipeline 45 i.e.
Can be at once by thermal evaporation.The both ends of heat conduction copper wire 491 are fixed with shell 2.More preferably, the end of heat conduction copper wire 491 is wound in gold
Belong on plate 492, then be welded on shell 2；Increase the contact area of heat conduction copper wire 491 and shell 2 by metallic plate 492, improve
Heat-conducting effect.
Referring again to Fig. 5, further, internal gas phase pipeline 42 and internal liquid phase pipeline 45 in the inner disc of interlayer 3 around setting, it is interior
Formed with coil pipe 421 on portion's gas phase pipeline 42, formed with coil pipe 451 on internal liquid phase pipeline 45, enter one by the setting of coil pipe
Step increases air current flow path, helps further to improve airflow stability.
Although describing the utility model with reference to several exemplary embodiments, it is to be understood that, term used is to say
Bright and exemplary and nonrestrictive term.Because the utility model can be embodied without departing from practicality in a variety of forms
New is spiritual or substantive, it should therefore be appreciated that above-mentioned embodiment is not limited to any foregoing details, and should be in right of enclosing
It is required that widely explained in the spirit and scope limited, thus whole changes for falling into claim or its equivalent scope and
Remodeling all should be appended claims and be covered.
Claims (10)
1. a kind of pressure obtaning device for low-temperature (low temperature) vessel level gauging, wherein, low-temperature (low temperature) vessel includes inner pressurd vessel and positioned at inner pressurd vessel
Outer shell, there is interlayer between inner pressurd vessel and shell；Characterized in that, the pressure obtaning device includes：
Liquid phase joint, it is arranged in the inner pressurd vessel bottom；Liquid phase upper end of joint is provided with the feed liquor with being communicated inside the inner pressurd vessel
Hole, liquid phase joint lower end are located in the interlayer, and bottom side of the wall is provided with the pressure port communicated with the inlet opening；
Liquid phase pipeline, including the internal liquid phase pipeline and external liquid phase pipeline being connected, the inner connection of the internal liquid phase pipeline
In on the liquid phase joint, and it is connected with the pressure port；
Gas phase pipeline, including the inside gas phase pipeline and Outside Vapor pipeline being connected, the internal gas phase pipeline with it is described interior
The gas-phase space connection of container；
The internal liquid phase pipeline and the internal gas phase pipeline are located in the interlayer；The external liquid phase pipeline and described outer
Portion's gas phase pipeline is located at outside the shell, filled with setting length in the Outside Vapor pipeline and the external liquid phase pipeline
Mineral wool.
2. pressure obtaning device according to claim 1, it is characterised in that the setting length is not less than 20cm.
3. pressure obtaning device according to claim 1, it is characterised in that the Outside Vapor pipeline and the external liquid phase pipe
Damping block is additionally provided with the both ends of the mineral wool in road, the end face of the damping block is bonded with the mineral wool；The damping
Block has the damping hole for penetrating its length direction, the damping block external diameter and the Outside Vapor pipeline, the external liquid phase pipe
The internal diameter adaptation on road.
4. according to the pressure obtaning device described in claim any one of 1-3, it is characterised in that also including heat-conducting mechanism, the heat conduction
Mechanism connects the inner and described shell of internal liquid phase pipeline, and the shell heat is conducted to the internal liquid phase pipe
Road.
5. pressure obtaning device according to claim 4, it is characterised in that the heat-conducting mechanism includes heat conduction copper wire, described to lead
Hot copper wire is wound on the internal liquid phase pipeline and fixed close to the liquid phase joint, the heat conduction copper wire with the shell.
6. pressure obtaning device according to claim 5, it is characterised in that the heat-conducting mechanism also includes metallic plate；It is described to lead
Hot copper wire is wound on the metallic plate and welded on the housing.
7. according to the pressure obtaning device described in claim any one of 1-3, it is characterised in that the pressure port aperture is entered less than described in
Fluid apertures aperture.
8. according to the pressure obtaning device described in claim any one of 1-3, it is characterised in that the liquid phase joint is in the pressure port
Outside sets mounting hole, and the internal liquid phase pipeline, which is stretched into the mounting hole, to be fixed and be connected with the pressure port.
9. according to the pressure obtaning device described in claim any one of 1-3, it is characterised in that the internal liquid phase pipeline and described interior
Portion's gas phase pipeline is in the interlayer inner disc around setting.
10. a kind of low-temperature (low temperature) vessel, it is characterised in that including the pressure obtaning device as described in claim any one of 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720713940.4U CN206818275U (en) | 2017-06-19 | 2017-06-19 | Low-temperature (low temperature) vessel and the pressure obtaning device for low-temperature (low temperature) vessel level gauging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720713940.4U CN206818275U (en) | 2017-06-19 | 2017-06-19 | Low-temperature (low temperature) vessel and the pressure obtaning device for low-temperature (low temperature) vessel level gauging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206818275U true CN206818275U (en) | 2017-12-29 |
Family
ID=60761014
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720713940.4U Active CN206818275U (en) | 2017-06-19 | 2017-06-19 | Low-temperature (low temperature) vessel and the pressure obtaning device for low-temperature (low temperature) vessel level gauging |
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|---|---|
| CN (1) | CN206818275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285320A (en) * | 2019-07-03 | 2019-09-27 | 中车西安车辆有限公司 | A kind of automobile-used LNG gas tank plate air pressure testing device of ore |
-
2017
- 2017-06-19 CN CN201720713940.4U patent/CN206818275U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285320A (en) * | 2019-07-03 | 2019-09-27 | 中车西安车辆有限公司 | A kind of automobile-used LNG gas tank plate air pressure testing device of ore |
| CN110285320B (en) * | 2019-07-03 | 2021-06-04 | 中车西安车辆有限公司 | LNG gas pitcher atmospheric pressure test device for ore car |
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