CN103453932B - A kind of cryogenic liquid temperature, pressure measures thread guide devices - Google Patents
A kind of cryogenic liquid temperature, pressure measures thread guide devices Download PDFInfo
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- CN103453932B CN103453932B CN201310219354.0A CN201310219354A CN103453932B CN 103453932 B CN103453932 B CN 103453932B CN 201310219354 A CN201310219354 A CN 201310219354A CN 103453932 B CN103453932 B CN 103453932B
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- 239000007788 liquid Substances 0.000 title claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 134
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000003822 epoxy resin Substances 0.000 claims description 6
- 229920000647 polyepoxide Polymers 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000032750 Device leakage Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000011104 metalized film Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
- Thermal Insulation (AREA)
Abstract
The present invention is that a kind of cryogenic liquid temperature, pressure measures thread guide devices, including temperature survey lead-in wire sleeve pipe, pressure measxurement communicating pipe, the first sealing flange, the second sealing flange, the first sealing member, the second sealing member, nut and base；Axial direction inside base is provided with the first sealing member and the second sealing member；The bottom of the first sealing member is annular groove shape, for the projection at the top of coupling the second sealing member；The first sealing flange it is provided with between first sealing member and the second sealing member；Second sealing flange coaxial with the first sealing flange it is provided with in the second sealing member；Temperature survey lead-in wire sleeve pipe and pressure measxurement communicating pipe are one group, through the first sealing member and the second sealing member, and are welded on the first sealing flange and the second sealing flange；The top of base is provided with nut, and it is peripheral that nut sleeve is located at the first sealing member.By assembly of the invention, cold liquid environment is monitored in real time, measurement more accurate, and present configuration is simple, easy to assembly, insulated enclosure performance is good.
Description
Technical field
The invention belongs to low-temperature superconducting technical field, be specifically related to a kind of cryogenic liquid temperature, pressure and measure thread guide devices.
Background technology
Superconducting power plant running is the most stable, needs to monitor cold liquid environment in real time.Signal measurement lead-in wire needs
To cross over from the room-temperature zone outside cryostat to the low-temperature space within cryostat, certain leakage heat can be caused.Right
For Suctmg electric device, reducing leakage heat as much as possible, meaning is the most great.It addition, signal measurement lead-in wire exists
When passing through cryostat, also to meet the requirements such as electric insulation, hermetic seal and air pressure resistance simultaneously.
At present, the general transition apparatus using sealing plug to go between as temperature survey, but can draw when using in liquid nitrogen temperature
Playing bigger leakage heat, sealing effectiveness is the most poor.Metal capillary is typically directly used to go between as pressure measxurement, at height
When voltage operating mode uses, relevant measuring and controlling equipment may be damaged.
Summary of the invention
For the deficiencies in the prior art, the present invention proposes a kind of cryogenic liquid temperature, pressure and measures thread guide devices, not only reduces
Experimental measurement error, also reduces the leakage heat caused because measuring lead-in wire, and insulated enclosure is effective, simple in construction,
Easy to use.
The present invention provides a kind of cryogenic liquid temperature, pressure to measure thread guide devices, and it thes improvement is that, described device includes
Temperature survey lead-in wire sleeve pipe, pressure measxurement communicating pipe, the first sealing flange, the second sealing flange, the first sealing member, the
Two sealing members, nut and base；
Axial direction inside described base is provided with described first sealing member and described second sealing member；Described first sealing member
Bottom is annular groove shape, for mating the projection at the top of described second sealing member；
Described first sealing flange it is provided with between described first sealing member and described second sealing member；
Described second sealing flange coaxial with described first sealing flange it is provided with in described second sealing member；
Described temperature survey lead-in wire sleeve pipe and described pressure measxurement communicating pipe are one group, through described first sealing member and described
Second sealing member, and being welded on described first sealing flange and the second sealing flange, and with described first sealing member, institute
State the second sealing member, described first sealing flange, described second sealing flange composition confined space；
The top of described base is provided with described nut, and it is peripheral that described nut sleeve is located at described first sealing member.
Wherein, multilayer insulation insulation material it is wound around between described first sealing flange and described second sealing flange.
Wherein, at the bottom welding copper post of described temperature survey lead-in wire sleeve pipe, its top uses epoxy resin adhesive curing to seal；
The periphery of described copper post is provided with radiating fin.
Wherein, described device includes the packing ring being arranged between described nut and described first sealing flange.
Wherein, described first sealing flange, the second sealing flange, the first sealing member and the second sealing member form confined space,
Described confined space carries out application of vacuum.
Wherein, described temperature survey lead-in wire sleeve pipe uses spiral linear design.
Wherein, described pressure measxurement communicating pipe uses helical disk cast.
Wherein, described first sealing member uses polytetrafluoroethylmaterial material to make.
Wherein, described second sealing member uses epoxide resin material to make.
Compared with the prior art, the invention have the benefit that
The simple in construction of the present invention, easy to assembly, insulated enclosure performance is good.
Measurement error of the present invention is smaller, and electrical insulation capability is good, and leakage ratio of specific heat is less, and gas tightness is good, air pressure tolerance energy
Power is high, and simple in construction, it is simple to mounting or dismounting is economical and practical.
The confined space that the present invention is surrounded by two sealing flanges and two sealing members, carries out evacuation process, effectively keeps away
Heat conduction when having exempted from thermometric and pressure measurement and heat convection, it is achieved that the benefit that leakage heat is little.
The present invention is provided with the copper post with radiating fin, to reduce measured value and reality in the lower end of temperature survey lead-in wire sleeve pipe
Error between actual value, it addition, the upper end of temperature survey lead-in wire sleeve pipe carries out solidification and seals, makes temperature survey lead-in wire sleeve pipe
It is internally formed vacuum shape, to reduce the leakage heat that in pipe, residual air conducts and convection current causes.
Accompanying drawing explanation
The temperature, pressure that Fig. 1 provides for the present invention measures pin configuration illustraton of model.
Fig. 2 measures pin configuration for the temperature, pressure that the present invention provides and dissects schematic diagram.In figure, 1 goes between for temperature survey
Sleeve pipe, 2 for pressure measxurement communicating pipe, 3 be the second sealing flange, 4 be the first sealing flange, 5 for finned copper post,
6 be the second sealing member, 7 be the first sealing member, 8 be packing ring, 9 be nut, 10 for base.
Two sealing flanges that Fig. 3 provides for the present invention and the schematic diagram of the confined space that two sealing members are formed.
Detailed description of the invention
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
A kind of cryogenic liquid temperature, pressure that the present embodiment proposes measures thread guide devices, for cold liquid environment is carried out reality
Time monitoring.Its structural model figure is as it is shown in figure 1, structure sectional drawing is as in figure 2 it is shown, specifically include temperature survey lead-in wire set
Pipe 1, pressure measxurement communicating pipe the 2, first sealing flange the 4, second sealing flange the 3, first sealing member 7, second seal
Part 6, nut 9 and base 10；
As in figure 2 it is shown, the axial direction inside base is provided with the first sealing member 7 and the second sealing member 6；First sealing member 7
Bottom be annular groove shape, for mating the projection at top of described second sealing member 6；First sealing member 7 and second
The first sealing flange 4 it is provided with between sealing member 6；Concrete, as it is shown on figure 3, first sealing member 7 of the present embodiment
Axial slices is shaped like in " convex " shape, and the axial slices of the second sealing member is shaped like in a reverse pyramid；Remove
The annular groove shape of the bottom of the first sealing member 7 mates outside the top bump of the second sealing member 6, and the present embodiment is
An annular groove it is provided with inside the bottom of one sealing member, after its top laminating with the second sealing member 6, formation ring-type
Groove is for placing the first sealing flange 4；The central through hole internal diameter of first sealing member 7 of the present embodiment is a, and second seals
The central through hole internal diameter of part 6 is b, a diameter of c of the first sealing flange, and c is more than a and b.
In the second sealing member 6, at distance the first sealing flange 50mm, it is welded with coaxial with the first sealing flange 4
Two sealing flanges 3；Temperature survey lead-in wire sleeve pipe and pressure measxurement communicating pipe are one group, through the first sealing member 7 and second
After sealing member 6, it is welded on the first sealing flange 4 and the second sealing flange 3；So, according to the first above-mentioned sealing
Flange the 4, second sealing flange 3, temperature survey lead-in wire sleeve pipe and the position of pressure measxurement communicating pipe, it seals with first
Part 7 and the second sealing member 6 form confined space, as shown in Figure 3.The present embodiment carries out application of vacuum to confined space,
Effectively avoid heat conduction and heat convection, improve the measurement precision of device.
Further, the present embodiment is wound around multilamellar (i.e. more than two-layer) between the first sealing flange 4 and the second sealing flange 3
Heat-insulating heat-preserving material, the most two-sided metallized film and low-temperature thermal insulation paper etc., to reduce radiation leakage heat.
In Fig. 2, the top of base 10 is provided with nut 9, and it is peripheral that nut 9 is set in the first sealing member 7, is somebody's turn to do for fixing
Device also provides pretightning force, to reach to tolerate anticyclonic purpose in low-temperature (low temperature) vessel.
Preferably, the present embodiment carries out epoxy resin adhesive curing sealing, its low side on the top of temperature survey lead-in wire sleeve pipe 1
It is heat sink that copper post 5(is set), the periphery of copper post 5 is provided with radiating fin.
Preferably, in order to avoid nut 9 directly acts on the first sealing member 7, it is used for multiple times, sealing may be damaged
Part, the present embodiment packing ring between nut 9 and the first sealing flange 4, as nut and the catch cropping of the first sealing member 7
Buffer unit firmly.
The present embodiment
Temperature survey lead-in wire sleeve pipe 1 uses spiral line type to design, and forms the thin-walled of internal diameter relatively big (internal diameter is more than 10mm)
Type (thickness is less than 2mm) stainless steel tube, is effectively increased wire length, reduces leakage heat.
Use helical disk cast pressure measxurement communicating pipe 2, form the communicating pipe of capillary pipe structure, be effectively increased wire length,
Reduce leakage heat.
Longitudinal tangent plane of the first sealing member 7 is similar to " convex " shape, and it uses polytetrafluoroethylmaterial material to make.
Longitudinal tangent plane of the second sealing member 6 is similar to reverse pyramid, and it uses epoxide resin material to make.
Base 10, packing ring 8, nut 9 all use rustless steel to process；Finally, then by base 10 it is welded on cryogenic thermostat
On device flange.
Corresponding, the cryogenic liquid temperature, pressure of the present embodiment is measured the using method of thread guide devices and is: according to operative combination
After each device, can directly temperature survey lead-in wire be directly connected with data collecting system, pressure measxurement lead-in wire direct and
Pressure transducer (or transmitter) is connected, and can obtain the data such as temperature and pressure of environment in cryostat.
Assembly of the invention simple in construction, easy to use, device leakage heat is few, good sealing effect, and insulating capacity is high.
Finally should be noted that: above example only in order to illustrate that technical scheme is not intended to limit, although
Being described in detail the present invention with reference to above-described embodiment, those of ordinary skill in the field are it is understood that still
The detailed description of the invention of the present invention can be modified or equivalent, and appointing without departing from spirit and scope of the invention
What amendment or equivalent, it all should be contained in the middle of scope of the presently claimed invention.
Claims (1)
1. a cryogenic liquid temperature, pressure measures thread guide devices, it is characterised in that described device includes that temperature survey is drawn
Thread casing, pressure measxurement communicating pipe, the first sealing flange, the second sealing flange, the first sealing member, the second sealing member,
Nut and base；
Axial direction inside described base is provided with described first sealing member and described second sealing member；Described first sealing member
Bottom is annular groove shape, for mating the projection at the top of described second sealing member；
Described first sealing flange it is provided with between described first sealing member and described second sealing member；
Described second sealing flange coaxial with described first sealing flange it is provided with in described second sealing member；
Described temperature survey lead-in wire sleeve pipe and described pressure measxurement communicating pipe are one group, through described first sealing member and described
Second sealing member, and being welded on described first sealing flange and the second sealing flange, and with described first sealing member, institute
State the second sealing member, described first sealing flange, described second sealing flange composition confined space；
The top of described base is provided with described nut, and it is peripheral that described nut sleeve is located at described first sealing member；
Multilayer insulation insulation material it is wound around between described first sealing flange and described second sealing flange；
At the bottom welding copper post of described temperature survey lead-in wire sleeve pipe, its top uses epoxy resin adhesive curing to seal；
The periphery of described copper post is provided with radiating fin；
Described device includes the packing ring being arranged between described nut and described first sealing flange；
Described first sealing flange, the second sealing flange, the first sealing member and the second sealing member form confined space, described
Confined space carries out application of vacuum；
Described temperature survey lead-in wire sleeve pipe uses spiral linear design；
Described pressure measxurement communicating pipe uses helical disk cast；
Described first sealing member uses polytetrafluoroethylmaterial material to make；
Described second sealing member uses epoxide resin material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310219354.0A CN103453932B (en) | 2013-06-04 | 2013-06-04 | A kind of cryogenic liquid temperature, pressure measures thread guide devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310219354.0A CN103453932B (en) | 2013-06-04 | 2013-06-04 | A kind of cryogenic liquid temperature, pressure measures thread guide devices |
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| Publication Number | Publication Date |
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| CN103453932A CN103453932A (en) | 2013-12-18 |
| CN103453932B true CN103453932B (en) | 2016-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310219354.0A Active CN103453932B (en) | 2013-06-04 | 2013-06-04 | A kind of cryogenic liquid temperature, pressure measures thread guide devices |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568008B (en) * | 2015-01-15 | 2017-01-11 | 广西大学 | Axial temperature and pressure continuous measuring device for fluid in pipe |
| DE102015117736A1 (en) * | 2015-10-19 | 2017-04-20 | Endress+Hauser Gmbh+Co. Kg | Pressure measuring device |
| CN106368869A (en) * | 2016-08-31 | 2017-02-01 | 泰豪科技股份有限公司 | Twin-jet-nozzle fuel system with temperature sensor and sensor manufacturing process of twin-jet-nozzle fuel system |
| CN107064451A (en) * | 2017-03-21 | 2017-08-18 | 平安煤炭开采工程技术研究院有限责任公司 | Sensor lead sealing device |
| CN113465645B (en) * | 2021-06-17 | 2023-03-14 | 上海交通大学 | Silk screen sensor assembly suitable for high-temperature and high-pressure flow working condition |
| CN113899493A (en) * | 2021-11-02 | 2022-01-07 | 西安交通大学苏州研究院 | Pressure sensor applied to ultralow temperature environment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937751A (en) * | 2010-06-18 | 2011-01-05 | 中国科学院电工研究所 | Low-temperature superconduction current lead sealing device |
| CN102290189A (en) * | 2011-05-05 | 2011-12-21 | 中国电力科学研究院 | Current lead insulating and sealing device |
| CN202093917U (en) * | 2011-05-12 | 2011-12-28 | 中国电力科学研究院 | Pipe beam type current lead wire |
| CN102323525A (en) * | 2011-06-16 | 2012-01-18 | 中国电力科学研究院 | The above voltage withstand class lead wire insulation of a kind of 35kV performance test method of testing |
| CN102998566A (en) * | 2012-11-29 | 2013-03-27 | 安徽万瑞冷电科技有限公司 | Test device for high temperature superconduction current leading wire |
-
2013
- 2013-06-04 CN CN201310219354.0A patent/CN103453932B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937751A (en) * | 2010-06-18 | 2011-01-05 | 中国科学院电工研究所 | Low-temperature superconduction current lead sealing device |
| CN102290189A (en) * | 2011-05-05 | 2011-12-21 | 中国电力科学研究院 | Current lead insulating and sealing device |
| CN202093917U (en) * | 2011-05-12 | 2011-12-28 | 中国电力科学研究院 | Pipe beam type current lead wire |
| CN102323525A (en) * | 2011-06-16 | 2012-01-18 | 中国电力科学研究院 | The above voltage withstand class lead wire insulation of a kind of 35kV performance test method of testing |
| CN102998566A (en) * | 2012-11-29 | 2013-03-27 | 安徽万瑞冷电科技有限公司 | Test device for high temperature superconduction current leading wire |
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| Publication number | Publication date |
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| CN103453932A (en) | 2013-12-18 |
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