CN204536239U - SF 6gas purity instrument constant temperature enclosure - Google Patents
SF 6gas purity instrument constant temperature enclosure Download PDFInfo
- Publication number
- CN204536239U CN204536239U CN201520116883.2U CN201520116883U CN204536239U CN 204536239 U CN204536239 U CN 204536239U CN 201520116883 U CN201520116883 U CN 201520116883U CN 204536239 U CN204536239 U CN 204536239U
- Authority
- CN
- China
- Prior art keywords
- gas
- constant temperature
- path module
- heating tube
- tcd sensor
- 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 - Fee Related
Links
- 238000010438 heat treatment Methods 0.000 claims abstract description 29
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000919 ceramic Substances 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 229910052697 platinum Inorganic materials 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 239000010949 copper Substances 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 5
- 229920001342 Bakelite® Polymers 0.000 claims description 3
- 239000004637 bakelite Substances 0.000 claims description 3
- 239000000356 contaminant Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007743 anodising Methods 0.000 description 1
- 230000008033 biological extinction Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model provides a kind of measurement SF
6the constant temperature enclosure of gas purity, it is by heating tube (2), heat conduction aluminum pad (3), temperature detect switch (TDS) (4), PTC ceramic heating flake (5), gas path module (6), copper sleeve (7), TCD sensor (8), platinum resistance (9) forms a measuring system be isolated from the outside, be arranged on by left plate (11), right plate (13), in the thermal-insulating body that base plate (14) and cover plate (10) assembling are formed, manufacture a constant temperature enclosure not influenced by ambient temperature, tested gas enters through draft tube joint (1), measuring chamber (16) is entered after heating tube (2) and gas path module (6) preheating, measure in the miniature heat conduction pond (17) being diffused into TCD sensor (8) by gas, then discharged by escape pipe joint (15), install sealing gasket (18) between TCD sensor (8) and gas path module (6) additional and keep sealing.It has, and measuring accuracy is high, measuring speed is fast, the simple feature of structure.
Description
One, technical field
The utility model relates to a kind of constant temperature enclosure, is applicable to measure SF
6gas purity.
Two, background technology
SF
6gas, with its good insulating property and arc extinction performance, is widely used in electrical equipment industry.Because of SF
6the insulation characterisitic of gas is very large by impurity effect, needs the purity of frequent measurement gas, causes SF
6the heavy demand of gas purity analyser.Due to SF
6gas does not have spectral absorption characteristics, and consider for economy, most cases also can only adopt thermal conductivity method measurement gas purity.When adopting thermal conductivity method to detect, all there is warm drift problem (namely detect same gas at different ambient temperatures, its result differs greatly) in a lot of product, causes measurement result to there is very big error like this.
Three, summary of the invention
1, goal of the invention
The purpose of this utility model is simple in order to design a kind of structure, and the constant temperature enclosure of convenient operation, coordinates and install state-of-the-art TCD sensor (8) in the world, can not be subject to external environmental interference, measure SF fast and accurately
6the purity (percentage composition) of gas, for user provides a kind of simple SF
6gas purity in-situ check and test method.
2, technical scheme
Task of the present utility model is implemented as follows: it by material be the left plate (11) of 3021 bakelite plates, right plate (13), base plate (14) and cover plate (10) assembly a thermal-insulating body, rise and support and insulation effect; A measuring system be isolated from the outside is formed by heating tube (2), heat conduction aluminum pad (3), temperature detect switch (TDS) (4), PTC ceramic heating flake (5), gas path module (6), copper sleeve (7), TCD sensor (8), platinum resistance (9), be assemblied in thermal-insulating body, PTC ceramic heating flake (5) provides heat, platinum resistance (9) measures gas path module (6) temperature in real time, realizes thermostatic control; Tested gas passes into heating tube (2) by draft tube joint (1), heating tube (2) is bent into M shape by bringing-up section, and the heat conduction aluminum pad (3) contacted with heating tube (2) will process the mounting groove of same shape, ensure no-float, extend gas-heated path, improve heat conductive efficiency; Tested gas is preheated rear importing measuring chamber (16), measures in the miniature heat conduction pond (17) being diffused into TCD sensor (8) by gas; Install sealing gasket (18) between TCD sensor (8) and gas path module (6) additional and keep sealing, form one not by the measuring chamber (16) that ambient temperature affects, get rid of introduced contaminants interference.Because measuring system is assemblied in thermal-insulating body, only have draft tube joint (1), escape pipe joint (15), temperature detect switch (TDS) (4) wire, PTC ceramic heating flake (5) wire, platinum resistance (9) wire to pass thermal-insulating body with TCD sensor (8) wire and be connected outside gas circuit and circuit, effectively can reduce thermal loss, measurement environment is made to keep stable, heat time when measuring for the first time can also be shortened, energy-conservation, efficient.
3, technique effect
The utility model has following advantage compared with the prior art
(1) comprehensive: hermetically sealed because measuring pipeline, before tested gas enters measuring chamber, (16) carry out preheating, measuring system is arranged in thermal-insulating body, therefore the design has, and response is fast, measurement result is not influenced by ambient temperature, degree of accuracy is high and the advantage of environmental protection and energy saving.
(2) measure gas concentrations uses TCD sensor (8), and measuring accuracy is high, is more than 10 years serviceable life.
(3) structure is simple, installs, swift and convenient to operate, working stability, reliable.
Four, accompanying drawing explanation
Fig. 1 is the utility model A-A sectional view;
Fig. 2 is the utility model wiring layout;
Fig. 3 is the utility model heating tube (2) and heat conduction aluminum pad (3) structural representation.
Five, embodiment
Below in conjunction with accompanying drawing, example of the present utility model is described in detail.
Constant temperature enclosure provides energy by PTC ceramic heating flake (5), and PTC ceramic heating flake (5) has long service life, the advantage of energy-saving and environmental protection, it and gas path module (6) close contact transferring heat; Gas path module (6) selects 2A12 material, black anodizing process, and heat absorption speed is fast; For improving heat transfer efficiency, during assembling, heat-conducting silicone grease can be filled between PTC ceramic heating flake (5) and gas path module (6).By platinum resistance (9), in real time measuring tempeature namely can the thermal value of control PTC ceramic heating flake (5) easily, regulate the temperature of gas path module (6), ensure that TCD sensor (8) can work at a stable temperature.
PTC ceramic heating flake (5) another side is close to heat conduction aluminum pad (3), and heat conduction aluminum pad (3) and heating tube (2) closely cooperate, and the tested gas passed in heating tube (2) by heat carries out preheating.Heating tube selects internal diameter to be the copper tube of 2mm, can save the effect that gas can play again gas in Fast Heating pipe.For extending gas-heated path, improving heat conductive efficiency, heating tube (2) being bent into M shape by bringing-up section, and the heat conduction aluminum pad (3) contacted with heating tube is processed the mounting groove of same shape, ensure no-float.
3021 bakelite plates that left plate (11), right plate (13), base plate (14) and cover plate (10) all select coefficient of heat conductivity low (0.23W/m.k), physical strength high make, do not absorb water, non-conductive, be easy to processing, form a thermal-insulating body after assembling, the working environment of a temperature stabilization can be maintained at box house.
Tested gas enters heating tube (2) from draft tube joint (1), measuring chamber (16) is entered by copper sleeve (7) after being preheated, diffused in the miniature heat conduction pond (17) being fixed on measuring chamber (16) top TCD sensor (8) by gas and measure, then discharged by escape pipe joint (15).TCD sensor (8) has that response is fast, the feature of good stability.For getting rid of introduced contaminants interference, whole measurement pipeline takes encapsulation process, and TCD sensor (8) and gas path module (6) cooperation place install sealing gasket (18) additional, ensures good seal.
Whole constant temperature enclosure manufacture, assembling simply, are easy to operation, can measure easily.
Claims (4)
1. a SF
6gas purity instrument constant temperature enclosure, it is characterized in that: it by material be the left plate (11) of 3021 bakelite plates, right plate (13), base plate (14) and cover plate (10) assembly a thermal-insulating body, rise and support and insulation effect; Form a measuring system be isolated from the outside by heating tube (2), heat conduction aluminum pad (3), temperature detect switch (TDS) (4), PTC ceramic heating flake (5), gas path module (6), copper sleeve (7), TCD sensor (8), platinum resistance (9), be assemblied in thermal-insulating body; Tested gas passes into heating tube (2) by draft tube joint (1), be preheated rear importing measuring chamber (16), measure in the miniature heat conduction pond (17) being diffused into TCD sensor (8) by gas; Install sealing gasket (18) between TCD sensor (8) and gas path module (6) additional and keep sealing, get rid of introduced contaminants interference.
2. SF according to claim 1
6gas purity instrument constant temperature enclosure, it is characterized in that: measuring system is assemblied in thermal-insulating body only having draft tube joint (1), escape pipe joint (15), temperature detect switch (TDS) (4) wire, PTC ceramic heating flake (5) wire, platinum resistance (9) wire to pass thermal-insulating body with TCD sensor (8) wire and be connected outside gas circuit and circuit.
3. SF according to claim 1
6gas purity instrument constant temperature enclosure, it is characterized in that: heating tube (2) is bent into M shape by bringing-up section, and the heat conduction aluminum pad (3) contacted with heating tube (2) will process the mounting groove of same shape, ensure no-float, extend gas-heated path, improve heat conductive efficiency.
4. SF according to claim 1
6gas purity instrument constant temperature enclosure, is characterized in that: install sealing gasket (18) between TCD sensor (8) and gas path module (6) additional and keep sealing, form one not by the measuring chamber (16) that ambient temperature affects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520116883.2U CN204536239U (en) | 2015-02-27 | 2015-02-27 | SF 6gas purity instrument constant temperature enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520116883.2U CN204536239U (en) | 2015-02-27 | 2015-02-27 | SF 6gas purity instrument constant temperature enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204536239U true CN204536239U (en) | 2015-08-05 |
Family
ID=53750225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520116883.2U Expired - Fee Related CN204536239U (en) | 2015-02-27 | 2015-02-27 | SF 6gas purity instrument constant temperature enclosure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204536239U (en) |
-
2015
- 2015-02-27 CN CN201520116883.2U patent/CN204536239U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203455103U (en) | A temperature measuring apparatus | |
| CN203324238U (en) | Thermal conductivity detector with rapid cooling function | |
| CN205980426U (en) | Logging instrument electronic refrigerating device in pit | |
| CN203606037U (en) | Temperature sensor | |
| CN204536239U (en) | SF 6gas purity instrument constant temperature enclosure | |
| CN203837827U (en) | High temperature resistance wireless temperature sensor | |
| CN102403666A (en) | Switchgear capable of measuring temperatures in cabinet on line | |
| CN202974467U (en) | Wireless temperature monitoring terminal installation structure for wire temperature monitoring | |
| CN202738364U (en) | Cooling structure of controller | |
| CN102705881A (en) | Induction cooker | |
| CN205353061U (en) | A device that is arranged in little water content of short -term test GIS equipment | |
| CN202598625U (en) | Electromagnetic oven | |
| CN204241125U (en) | Temperature sensor | |
| CN106644141A (en) | Button-type temperature-sensitive probe | |
| CN209132368U (en) | A kind of full-automatic detection device of patch jig high reliability | |
| CN202836812U (en) | Thermal resistor | |
| CN203629690U (en) | ZigBee-based high-tension switch cabinet wireless temperature measurement system | |
| CN203643046U (en) | Highly sensitive temperature sensor for soya-bean milk machine | |
| WO2011047954A3 (en) | Device for monitoring cell culture development | |
| CN205280235U (en) | Lithium battery temperature sensor detection mechanism | |
| CN206223318U (en) | A kind of button-shaped thermosensitive probe | |
| CN208315042U (en) | Air heat engine experiment instrument | |
| CN205016530U (en) | High stable switch transistor | |
| CN202333562U (en) | Switch apparatus for online measuring of temperature inside cabinet | |
| CN202041305U (en) | Temperature measurement sensor with air closed chamber of super capacitor battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: SINDIA INSTRUMENTS CO.,LTD. Person in charge of patents Document name: Notice of Termination of Patent Rights |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |