CN211402216U - Thermal conductivity gas analyzer - Google Patents
Thermal conductivity gas analyzer Download PDFInfo
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- CN211402216U CN211402216U CN202020014293.XU CN202020014293U CN211402216U CN 211402216 U CN211402216 U CN 211402216U CN 202020014293 U CN202020014293 U CN 202020014293U CN 211402216 U CN211402216 U CN 211402216U
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- limiting
- thick bamboo
- admission line
- gas analyzer
- hollow section
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Abstract
The utility model relates to a thermal conductance gas analyzer, including air chamber and sensor module, be equipped with inner chamber, admission line and the pipeline of giving vent to anger in the air chamber, admission line and the pipeline of giving vent to anger all communicate with the inner chamber, the inner chamber is located to the sensor module, one side that the inner chamber was kept away from to the admission line is pegged graft and is had a hollow section of thick bamboo, and the both sides of hollow section of thick bamboo all set up to the outer peripheral face of opening and hollow section of thick bamboo and the inner wall butt of admission line, are equipped with the filter screen in the hollow section of thick bamboo, and one side that the admission line was kept away from. The utility model discloses can filter the impurity in the appearance gas, avoid impurity and sensor module contact in order to prolong sensor module life.
Description
Technical Field
The utility model belongs to the technical field of the technique of gaseous check out test set and specifically relates to a thermal conductance gas analysis appearance is related to.
Background
A thermal conductivity gas analyzer is a gas analyzer which calculates the contents of certain components by measuring the thermal conductivity of mixed gas according to the principle that different gases have different thermal conductivity. The thermal conductivity gas analyzer has a wide application range, can be used for analyzing the content of hydrogen, ammonia, carbon dioxide, sulfur dioxide and low-concentration combustible gas, and can also be used as a detector in a chromatographic analyzer for analyzing other components.
The prior patent with publication number CN110412070A discloses an online thermal conductivity gas analyzer, which comprises a gas chamber, an inner chamber arranged in the gas chamber, and an airflow passage arranged at one end of the inner chamber; the air flow passage is provided with an air inlet hole and an air outlet hole which are respectively communicated with one end of the inner cavity, the air inlet hole is arranged at the air inlet side of the air flow passage, and the air outlet hole is arranged at the air outlet side of the air flow passage; a sensor module is arranged in the inner cavity and is connected with the data analysis module through a lead, and the sensor module comprises a heat conduction gas sensor and a temperature sensor; the other end of the inner cavity is sealed by sealant. During operation, sample gas enters the airflow passage from the air inlet side, is shunted through the air inlet hole and enters the inner cavity, and after the sensor module detects, the sample gas enters the air exhaust side through the air exhaust hole and is finally exhausted.
The above prior art solutions have the following drawbacks: many impurities such as dust particles are mixed in the sample gas, the impurities follow the sample gas flow through the gas flow passage and enter the inner cavity through the gas inlet to be contacted with the sensor module, and the impurities can cause bad influence on the sensor module, so that the sensor module is easy to damage.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a thermal conductance gas analyzer is avoided impurity influence sensor module to impurity in the sample gas of filtration, the sensor module is avoided to the not enough of prior art existence, one of the purpose of the utility model is to provide a.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a thermal conductance gas analyzer, includes air chamber and sensor module, is equipped with inner chamber, admission line and the pipeline of giving vent to anger in the air chamber, and admission line and the pipeline of giving vent to anger all communicate with the inner chamber, and the inner chamber is located to the sensor module, one side that the inner chamber was kept away from to the admission line is pegged graft and is had a hollow section of thick bamboo, and the both sides of hollow section of thick bamboo all set up to the outer peripheral face of opening and hollow section of thick bamboo and the inner wall butt of admission line, are equipped with the filter screen in the hollow section of thick bamboo, and one side that the admission.
By adopting the technical scheme, the hollow cylinder is inserted into the air inlet pipeline, the outer peripheral surface of the hollow cylinder is abutted against the inner wall of the air inlet pipeline, the limiting ring is abutted against the outer wall of the air chamber, the position of the hollow cylinder in the air inlet pipeline is determined, the limiting part on the limiting ring is inserted on the outer wall of the air chamber, the hollow cylinder cannot be accidentally separated from the air inlet pipeline under the action of self weight or other external forces, and the limiting part enables the hollow cylinder to be stably positioned in the air inlet pipeline; because the two sides of the hollow cylinder are provided with openings, the hollow cylinder is communicated with the air inlet pipeline, sample gas firstly enters the hollow cylinder through the opening close to the limiting ring, a filter screen in the hollow cylinder filters impurities in the sample gas, the sample gas then flows into the air inlet pipeline through the other opening far away from the limiting ring and then flows into the inner cavity, and after the sensor module detects the sample gas, the sample gas then flows out of the air chamber through the air outlet pipeline; under the matching action of the hollow cylinder and the filter screen in the hollow cylinder, impurities in the sample gas are removed, the impurities are prevented from entering the inner cavity and contacting the sensor module, the purpose of protecting the sensor module is achieved, and the service life of the sensor module is prolonged; simultaneously, under the mating reaction of locating part and spacing ring, the mounting means of a hollow section of thick bamboo is very simple, and the workman of being convenient for installs and dismantles a hollow section of thick bamboo on the air chamber.
The present invention may be further configured in a preferred embodiment as: the filter screen is provided with the multilayer and the filtration pore aperture of filter screen is different.
Through adopting above-mentioned technical scheme, the filter screen that the multilayer filtration pore aperture is different will filter the big or small foreign particle who mingles in the sample gas better, has further strengthened the filter effect to the sample gas.
The present invention may be further configured in a preferred embodiment as: the limiting part comprises a limiting rod and an elastic limiting block, one end of the limiting rod is perpendicularly connected with one side, close to the air chamber, of the limiting ring, the other end of the limiting rod is perpendicularly connected with the limiting block, a limiting groove with a T-shaped cross section is formed in the side wall of the air chamber, the limiting rod is connected to the vertical portion of the limiting groove in an inserting mode, and the vertical portion, penetrating through the limiting groove, of the limiting block is located in the horizontal portion of the limiting groove.
Through adopting above-mentioned technical scheme, the admission line is aimed at to hollow section of thick bamboo, when will inserting the admission line with hollow section of thick bamboo, aim at the spacing groove with the stopper on the spacing ring, press the spacing ring, because the stopper has elasticity, consequently, the stopper takes place in elastic deformation and passes in the vertical part of spacing groove removes the horizontal part of spacing groove, at this moment, the gag lever post that links to each other with the stopper is then pegged graft in the vertical part of spacing groove, and the spacing ring then with the butt of the outer wall of air chamber, then hollow section of thick bamboo is just pegged graft in the admission line steadily, the effect of the impurity in the sample gas is filtered in the performance.
The present invention may be further configured in a preferred embodiment as: one side of the limiting block, which is far away from the limiting rod, is set to be an arc surface.
Through adopting above-mentioned technical scheme, the one side that the gag lever post was kept away from to the stopper sets up the cambered surface for a guide effect for the stopper for pressing the spacing ring, make the stopper pass the vertical part of spacing groove time, can be more smooth and easy, the workman needn't spend great strength.
The present invention may be further configured in a preferred embodiment as: and the limiting ring is provided with a pull ring.
By adopting the technical scheme, after the filter screen is used for a period of time, the filter screen needs to be cleaned, at the moment, a worker can pull the pull ring, the limiting block passes through the vertical part of the limiting groove again in the process of pulling the limiting ring, the limiting rod is also separated from the limiting groove, so that the limiting ring is not connected with the outer wall of the air chamber any more, the limiting ring drives the hollow cylinder to be separated from the air inlet pipeline, the whole device is taken down from the air chamber, and the worker can clean the filter screen in the hollow cylinder; under the cooperation of the pull ring, the mode of taking off the hollow cylinder is very simple, and the operation of workers is convenient.
The present invention may be further configured in a preferred embodiment as: two groups of limiting parts are oppositely arranged on the limiting ring.
Through adopting above-mentioned technical scheme, the setting up of two sets of relative locating parts makes spacing ring inseparabler with being connected of air chamber to hollow section of thick bamboo can be located the intake duct more steadily and play a role, can not rock.
The present invention may be further configured in a preferred embodiment as: the limit ring is clamped with a magnetic sealing cover.
Through adopting above-mentioned technical scheme, after considering to finish the appearance gas detection, in order to avoid external air or impurity to enter into the admission line, consequently set up the sealed lid with the spacing ring joint, close the opening of a hollow section of thick bamboo near spacing ring one side and close, thereby avoid external air or impurity to enter into the admission line in, when needing to detect the appearance gas, again with sealed lid from the spacing ring take off can.
To sum up, the utility model discloses a following at least one useful technological effect:
1. under the matching action of the hollow cylinder and the filter screen in the hollow cylinder, impurities in the sample gas can be filtered, the influence of the impurities contacting the sensor module on the sensor module is avoided, the purpose of protecting the sensor module is achieved, and the service life of the sensor module is prolonged;
2. under the combined action of spacing ring, gag lever post, elastic limiting block and the spacing groove that the cross-section is T shape, simplified the mode that hollow section of thick bamboo was installed in the admission line, the workman only need press the gag lever post, can make gag lever post and stopper peg graft at the spacing inslot, then hollow section of thick bamboo is located the admission line steadily and plays a role.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic view of the hollow cylinder of fig. 1.
Fig. 4 is a schematic view of the hollow cylinder of fig. 1 from another perspective.
In the figure, 1, a gas chamber; 10. an inner cavity; 11. an air intake duct; 12. an air outlet pipe; 13. a limiting groove; 2. a sensor module; 3. a hollow cylinder; 30. an opening; 31. a limiting ring; 310. an arc-shaped slot; 311. a pull ring; 4. a limiting member; 41. a limiting rod; 42. a limiting block; 5. a sealing cover; 50. an arc-shaped block; 6. and (5) filtering by using a filter screen.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, for the utility model discloses a thermal conductance gas analyzer, including air chamber 1 and sensor module 2, be equipped with inner chamber 10, admission line 11 and pipeline 12 of giving vent to anger in the air chamber 1, sensor module 2 arranges inner chamber 10 in, and admission line 11 all communicates with inner chamber 10 with pipeline 12 of giving vent to anger. One side that inner chamber 10 was kept away from to admission line 11 is pegged graft and is had a hollow section of thick bamboo 3, the outer peripheral face of a hollow section of thick bamboo 3 and the inner wall butt of admission line 11, the both sides of a hollow section of thick bamboo 3 all set up to opening 30, consequently hollow section of thick bamboo 3 and admission line 11 intercommunication, hollow section of thick bamboo 3 internal fixation has multilayer filter screen 6, filter screen 6 is parallel with opening 30 and filter screen 6 covers opening 30, filter screen 6's filtration pore diameter is different, filter screen 6 utilizes the fibre web preparation.
As shown in fig. 2 and 3, a limiting ring 31 is fixed on the outer peripheral surface of the hollow cylinder 3 at the side far from the air inlet duct 11, the limiting ring 31 is coaxial with the hollow cylinder 3, one side of the limiting ring 31 abuts against the outer wall of the air chamber 1, and the outer peripheral wall of the limiting ring 31 is rotatably connected with a pull ring 311.
As shown in fig. 2 and 3, the outer wall of the air chamber 1 is oppositely provided with two limiting grooves 13, the cross section of each limiting groove 13 is in a T shape, the transverse part of each limiting groove 13 is higher than the vertical part of each limiting groove 13, and the vertical part of each limiting groove 13 penetrates through the outer wall of the air chamber 1 to be communicated with the outside; one side of the limiting ring 31 close to the outer wall of the air chamber 1 is provided with two groups of limiting pieces 4 oppositely, and the limiting grooves 13 are opposite to the limiting pieces 4 one by one.
As shown in fig. 2 and fig. 3, the limiting member 4 includes a limiting rod 41 and an elastic limiting block 42, one end of the limiting rod 41 and the limiting ring 31 are connected to each other in a perpendicular manner on the side close to the outer wall of the air chamber 1, the other end of the limiting rod 41 and the limiting block 42 are connected in a perpendicular manner, the limiting block 42 is set to be circular and the limiting block 42 is coaxial with the limiting rod 41, the limiting block 42 is made of rubber blocks, one side of the limiting block 42 away from the limiting rod 41 is set to be an arc surface, the limiting ring 31 is pressed, the limiting block 42 penetrates through the vertical portion of the limiting groove 13 and is located in the horizontal portion of the limiting groove 13, and.
As shown in fig. 4, two arc-shaped grooves 310 are oppositely arranged on one side of the limiting ring 31 away from the outer wall of the air chamber 1, one side of the limiting ring 31 away from the outer wall of the air chamber 1 is clamped with a sealing cover 5, two arc-shaped blocks 50 are oppositely fixed on one side of the sealing cover 5, and the arc-shaped blocks 50 are embedded in the arc-shaped grooves 310.
The implementation principle of the embodiment is as follows: inserting the hollow cylinder 3 into the air inlet pipeline 11, pressing the limiting ring 31 to enable the limiting piece 4 to be inserted into the limiting groove 13, and enabling one side of the limiting ring 31 to be abutted against the outer wall of the air chamber 1, so that the hollow cylinder 3 is stably positioned in the air inlet pipeline 11; when detecting the sample gas, the sample gas flows through hollow section of thick bamboo 3, and after filter screen 6 filtered the impurity in the sample gas, the sample gas flows into inner chamber 10 along admission line 11 in, and sensor module 2 detects the sample gas, and finally, the sample gas is through giving vent to anger pipeline 12 outflow.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a thermal conductance gas analyzer, includes air chamber (1) and sensor module (2), is equipped with inner chamber (10), admission line (11) and pipeline (12) of giving vent to anger in air chamber (1), and admission line (11) and pipeline (12) of giving vent to anger all communicate with inner chamber (10), and in inner chamber (10) was located in sensor module (2), its characterized in that: one side that inner chamber (10) were kept away from in admission line (11) is pegged graft and is had a hollow section of thick bamboo (3), the both sides of hollow section of thick bamboo (3) all set up to opening (30) and the outer peripheral face of hollow section of thick bamboo (3) and the inner wall butt of admission line (11), be equipped with filter screen (6) in hollow section of thick bamboo (3), one side that admission line (11) were kept away from in hollow section of thick bamboo (3) is equipped with air chamber (1) outer wall butt spacing ring (31), be equipped with on spacing ring (31) and peg graft in locating part (4) of air chamber (1.
2. A thermally conductive gas analyzer as claimed in claim 1, wherein: the filter screen (6) is provided with a plurality of layers and the filter holes of the filter screen (6) have different apertures.
3. A thermally conductive gas analyzer as claimed in claim 1, wherein: the limiting part (4) comprises a limiting rod (41) and an elastic limiting block (42), one end of the limiting rod (41) is perpendicularly connected with one side, close to the air chamber (1), of the limiting ring (31), the other end of the limiting rod (41) is perpendicularly connected with the limiting block (42), the side wall of the air chamber (1) is provided with a limiting groove (13) with a T-shaped cross section, the limiting rod (41) is inserted into the vertical part of the limiting groove (13), and the vertical part, penetrating through the limiting groove (13), of the limiting block (42) is located in the transverse part of the limiting groove (13).
4. A thermally conductive gas analyzer as set forth in claim 3 wherein: one side of the limiting block (42) far away from the limiting rod (41) is provided with a cambered surface.
5. A thermally conductive gas analyzer as set forth in claim 3 wherein: the limiting block (42) is a rubber block.
6. A thermally conductive gas analyzer as set forth in claim 3 wherein: and a pull ring (311) is arranged on the limit ring (31).
7. A thermally conductive gas analyzer as claimed in claim 1, wherein: two groups of limiting parts (4) are oppositely arranged on the limiting ring (31).
8. A thermally conductive gas analyzer as claimed in claim 1, wherein: and a magnetic sealing cover (5) is clamped on the limiting ring (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020014293.XU CN211402216U (en) | 2020-01-04 | 2020-01-04 | Thermal conductivity gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020014293.XU CN211402216U (en) | 2020-01-04 | 2020-01-04 | Thermal conductivity gas analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211402216U true CN211402216U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020014293.XU Active CN211402216U (en) | 2020-01-04 | 2020-01-04 | Thermal conductivity gas analyzer |
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| CN (1) | CN211402216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117470899A (en) * | 2023-10-26 | 2024-01-30 | 北京东分科技发展有限公司 | Novel device and method for measuring gas concentration by using thermal conductivity principle sensor |
-
2020
- 2020-01-04 CN CN202020014293.XU patent/CN211402216U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117470899A (en) * | 2023-10-26 | 2024-01-30 | 北京东分科技发展有限公司 | Novel device and method for measuring gas concentration by using thermal conductivity principle sensor |
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