CN200953006Y - Diffusion type heat contact thermal conducting pool - Google Patents
Diffusion type heat contact thermal conducting pool Download PDFInfo
- Publication number
- CN200953006Y CN200953006Y CN 200620088741 CN200620088741U CN200953006Y CN 200953006 Y CN200953006 Y CN 200953006Y CN 200620088741 CN200620088741 CN 200620088741 CN 200620088741 U CN200620088741 U CN 200620088741U CN 200953006 Y CN200953006 Y CN 200953006Y
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- CN
- China
- Prior art keywords
- hold
- down support
- sensing element
- diffusion type
- sensor element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a diffusive thermo-contact conductance cell, comprising a hold-down support and a hydrogen sensor element. Both sides of the hold-down support are arranged with the air inlets and air outlets. Also, the upper part of the hold-down support is arranged with the projection, which is provided with a groove. The said hydrogen sensor element is built in the groove. In addition, the sensing airway is available between the hydrogen sensor element and the air inlet & air outlet. Both the air inlet & air outlet are connected with the sensing airway. Tight coupling is realized between the sensing airway and the hydrogen sensor element. The external projection is twined with the heating element so as to ensure the constancy of temperature for the gas to be measured. Therefore, the thermal-conductivity coefficient thereof is guaranteed. The upper part of the hold-down support is provided with the safety cover. The sealant is injected to the cavity between the safety cover and the hydrogen sensor element so as to prevent the hydrogen sensor element from the air. Therefore, the accuracy of this sensor is improved. This utility model boasts a simple structure and a low cost.
Description
Technical field
The utility model relates to a kind of hydrogen purity measuring element, relates to a kind of diffusion type thermo-contact conductance cell specifically.
Background technology
What the analyser of the measurement hydrogen purity of knowing altogether at present used is as the hydrogen purity detecting device with conductance cell, this conductance cell commonly used has characteristics such as reflection sensitivity, good stability, long service life, but the structure more complicated of this conductance cell, and cost of manufacture is also than higher.
The utility model content
The purpose of this utility model provides the diffusion type thermo-contact conductance cell that a kind of response speed is faster, simple in structure, cost of manufacture is low.
For achieving the above object, the technical scheme that the utility model adopted is: a kind of diffusion type thermo-contact conductance cell, comprise hold-down support, hydrogen sensing element, the both sides of described hold-down support are provided with air intake opening, gas outlet, the upper end of described hold-down support is provided with boss, be provided with groove in the described boss, described hydrogen sensing element is arranged on inside grooves, be provided with the induction air flue between described hydrogen sensing element and air intake opening, the gas outlet, described air intake opening, gas outlet and induction air flue link, and described induction air flue and hydrogen sensing element are tightly connected.
Below be the further improvement of such scheme:
The outside of described boss is wound with heater strip, the setting of heater strip make the gas of surveying keep temperature constant, thereby guaranteed the heat-conduction coefficient of the gas of surveying.
The top of described hold-down support is provided with protective cover; being provided with of protective cover one is the effect of playing protection hydrogen sensing element; the 2nd, completely cut off the hydrogen sensing element and contacted with air; be marked with fluid sealant in the cavity between described protective cover and the hydrogen sensing element; being provided with of fluid sealant completely cut off the hydrogen sensing element and contacted with air, improved the degree of accuracy of this sensor.
The top of described protective cover has through wires hole, and the top of described sensing element is provided with sense line, and described sense line passes through wires hole and is connected with main plate line.
Described protective cover is connected with whorl of base.
Beneficial effect:
The utility model adopts technique scheme, has improved the fast and sensitivity of response speed of conductance cell, and is simple in structure, reduced its cost of manufacture, the utlity model has than higher use value and promotional value.The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing is the structural representation of the utility model embodiment.
Embodiment
Embodiment; a kind of diffusion type thermo-contact conductance cell; comprise hold-down support 2; hydrogen sensing element 1; the both sides of described hold-down support 2 are provided with air intake opening 6; gas outlet 7; the upper end of described hold-down support 2 is provided with boss 11; be provided with groove 12 in the described boss 11; described hydrogen sensing element 1 is arranged on groove 12 inside; described hydrogen sensing element 1 and air intake opening 6; be provided with induction air flue 8 between the gas outlet 7; described air intake opening 6; gas outlet 7 links with induction air flue 8; described induction air flue 8 is tightly connected with hydrogen sensing element 1; the outside of described boss 11 is wound with heater strip 10; the setting of heater strip 10 make the gas of surveying keep temperature constant; thereby guaranteed the heat-conduction coefficient of the gas of surveying; the top of described hold-down support 2 is provided with protective cover 3; described protective cover 3 is threaded with hold-down support 2; being provided with of protective cover 3 one is the effect of playing protection hydrogen sensing element 1; the 2nd, completely cut off hydrogen sensing element 1 and contacted with air; be marked with fluid sealant 5 in the cavity between described protective cover 3 and the hydrogen sensing element 1; being provided with of fluid sealant 5 completely cut off hydrogen sensing element 1 and contacted with air; improved the degree of accuracy of this sensor; the top of described protective cover 3 has through wires hole 9; the top of described sensing element 1 is provided with sense line 4; described sense line 4 passes through wires hole 9 and is connected with main plate line; the utility model is measured accurately; simple in structure; reduced its cost of manufacture, the utlity model has than higher use value and promotional value.
Claims (5)
1, a kind of diffusion type thermo-contact conductance cell, comprise hold-down support (2), hydrogen sensing element (1), it is characterized in that: the both sides of described hold-down support (2) are provided with air intake opening (6), gas outlet (7), the upper end of described hold-down support (2) is provided with boss (11), be provided with groove (12) in the described boss (11), described hydrogen sensing element (1) is arranged on groove (12) inside, described hydrogen sensing element (1) and air intake opening (6), be provided with induction air flue (8) between the gas outlet (7), described air intake opening (6), gas outlet (7) links with induction air flue (8), and described induction air flue (8) is tightly connected with hydrogen sensing element (1).
2, diffusion type thermo-contact conductance cell according to claim 1, it is characterized in that: the outside of described boss (11) is wound with heater strip (10).
3, diffusion type thermo-contact conductance cell according to claim 2, it is characterized in that: the top of described hold-down support (2) is provided with protective cover (3), is marked with fluid sealant (5) in the cavity between described protective cover (3) and the hydrogen sensing element (1).
4, diffusion type thermo-contact conductance cell according to claim 3; it is characterized in that: the top of described protective cover (3) has through wires hole (9); the top of described sensing element (1) is provided with sense line (4), and described sense line (4) passes through wires hole (9) and is connected with main plate line.
5, diffusion type thermo-contact conductance cell according to claim 4 is characterized in that: described protective cover (3) is threaded with hold-down support (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088741 CN200953006Y (en) | 2006-09-08 | 2006-09-08 | Diffusion type heat contact thermal conducting pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620088741 CN200953006Y (en) | 2006-09-08 | 2006-09-08 | Diffusion type heat contact thermal conducting pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953006Y true CN200953006Y (en) | 2007-09-26 |
Family
ID=38811307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620088741 Expired - Lifetime CN200953006Y (en) | 2006-09-08 | 2006-09-08 | Diffusion type heat contact thermal conducting pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953006Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655472B (en) * | 2009-10-09 | 2013-02-20 | 丁五行 | Constant temperature insulation system for thermal conductivity gas detection |
| CN103235616A (en) * | 2013-04-02 | 2013-08-07 | 国家电网公司 | Thermostatic protector for electrochemical sensor |
| CN109557130A (en) * | 2017-09-25 | 2019-04-02 | 中国石油化工股份有限公司 | A kind of measurement and control method for detection gas thermal conductivity |
| CN111999338A (en) * | 2020-07-22 | 2020-11-27 | 中国科学院上海微系统与信息技术研究所 | Miniature thermal conductivity gas sensor |
-
2006
- 2006-09-08 CN CN 200620088741 patent/CN200953006Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655472B (en) * | 2009-10-09 | 2013-02-20 | 丁五行 | Constant temperature insulation system for thermal conductivity gas detection |
| CN103235616A (en) * | 2013-04-02 | 2013-08-07 | 国家电网公司 | Thermostatic protector for electrochemical sensor |
| CN109557130A (en) * | 2017-09-25 | 2019-04-02 | 中国石油化工股份有限公司 | A kind of measurement and control method for detection gas thermal conductivity |
| CN111999338A (en) * | 2020-07-22 | 2020-11-27 | 中国科学院上海微系统与信息技术研究所 | Miniature thermal conductivity gas sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070926 |
|
| EXPY | Termination of patent right or utility model |