CN218725762U - Gas analysis sampling probe used in high-temperature dusty environment - Google Patents
Gas analysis sampling probe used in high-temperature dusty environment Download PDFInfo
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- CN218725762U CN218725762U CN202222260299.7U CN202222260299U CN218725762U CN 218725762 U CN218725762 U CN 218725762U CN 202222260299 U CN202222260299 U CN 202222260299U CN 218725762 U CN218725762 U CN 218725762U
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- 238000005070 sampling Methods 0.000 title claims abstract description 34
- 239000000523 sample Substances 0.000 title claims abstract description 26
- 238000004868 gas analysis Methods 0.000 title claims abstract description 24
- 238000009826 distribution Methods 0.000 claims abstract description 64
- 238000010926 purge Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000428 dust Substances 0.000 abstract description 6
- 230000002000 scavenging effect Effects 0.000 abstract description 5
- 239000000779 smoke Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 63
- 238000007664 blowing Methods 0.000 description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model relates to a gas analysis sampling probe for under high temperature dusty environment belongs to metallurgical industry gas analysis instrument equipment technical field. The technical scheme is as follows: the filter element assembly (1) consists of a central tube (6) and a filter cartridge which are concentrically arranged, the filter cartridge comprises an A section, a B section and a C section, a bolt through hole is processed in the middle of the gas distribution base (2), an annular groove is processed on the first outward circle of the bolt through hole, and a sampling air hole (9) is processed below the annular groove; an annular groove is also processed on the outward second circle of the bolt through hole, and a scavenging air hole (8) is processed on the left side of the annular groove; the gas distribution plate (5) is welded on the gas distribution base (2); one end of the central tube (6) close to the section C of the filter cartridge is connected with the gas distribution disc (5) in a threaded manner, and an O-shaped seal (3) and a seal flat gasket (4) are arranged between the outer cylindrical surface of the section C of the filter cartridge and the gas distribution disc (5). The utility model has the advantages that: the measuring precision of the smoke is prevented from being influenced by high temperature or dust.
Description
Technical Field
The utility model relates to a gas analysis sampling probe for under high temperature dusty environment belongs to metallurgical industry gas analysis instrument equipment technical field.
Background
Converter models are mostly established on the basis of sublance measurement, and converter smelting is guided by a converter sublance TSC and TSO. However, the sublance smelting model has poor real-time performance, and the measurement opportunity is grasped according to the empirical judgment when the TSC and the TSO are measured, so that the deviation exists mostly. Either a post-blow is detected in advance or an over-blow is detected later. In recent years, flue gas analysis has been developed, and gas components such as CO and H measured by a flue gas analysis system 2 、CO 2 、O 2 The content analysis converting condition, but the gas analysis appearance that adopts at present is mostly with gas extraction formula, mostly relies on the import, but its core component sampling probe has following problem:
the existing flue gas analysis sampling probe is too complex in structural design, because of high temperature and dustiness of use environment, the requirement on the high temperature resistance of a sealing material is higher, the probe has a plurality of seals in structural design, the error of part installation sequence or the improper seal installation often occurs to cause poor sealing, the whole flue gas analysis system enters a large amount of dust, the measurement accuracy of a light person is reduced, and the serious whole flue gas analysis system that causes is thoroughly scrapped.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas analysis sampling probe for under the many dirt environment of high temperature has avoided because high temperature or dust influence the measurement accuracy of flue gas, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
a gas analysis sampling probe for high temperature dusty environment which characterized in that: the filter element assembly comprises a central tube and a filter cartridge which are concentrically arranged, the filter cartridge comprises an A section, a B section and a C section which are of an integrated structure, wherein the A section is in a thin-wall cylindrical shape, the left end of the A section is open, the right end of the A section is sealed with a cover plate, a round hole with the same diameter as the central tube is processed on the cover plate, the central tube penetrates through the middle of the round hole, the left side of the A section and the B section are welded into a whole, the B section is a stainless steel sintered filter element and is in a thin-wall cylindrical shape, the C section is in the same shape as the A section, and four fan-shaped holes are processed on the end surface of the C section; the gas distribution base is in a disc shape, a bolt through hole is processed in the middle of the gas distribution base, a first circle outward of the bolt through hole is processed with an annular groove, a sampling air hole is processed below the annular groove, and the sampling air hole is perpendicular to the end face of the gas distribution base, penetrates through the end face of the gas distribution base and is communicated with the annular groove of the first circle; an annular groove is also processed on the outward second ring of the bolt through hole, a scavenging air hole is processed on the left side of the annular groove, and the scavenging air hole is vertical to the end surface of the air distribution base, penetrates through the end surface and is communicated with the annular groove of the second ring; the gas distribution plate is of an annular structure, a plurality of vent holes are formed in the circumferential direction of the gas distribution plate, and the gas distribution plate is welded on the gas distribution base on one side of the annular groove; one end of the central tube, which is close to the section C of the filter cartridge, is connected with the gas distribution disc through threads, and an O-shaped sealing and sealing flat gasket is arranged between the outer cylindrical surface of the section C of the filter cartridge and the gas distribution disc.
The central tube is close to the one end of cartridge filter C section and is equipped with the external screw thread, and the central authorities of gas panel are equipped with the screw hole with central tube assorted.
One end of the central tube, which is close to the section A of the filter cartridge, is in a conical shape which gradually shrinks.
And a U-shaped groove matched with the O-shaped seal is arranged in the middle of the outer cylindrical surface of the C section of the filter cartridge.
Four through holes are processed on the outer ring of the air distribution base.
The utility model has the advantages that: this gas analysis's sampling probe generally adopts welded structure, only has one sealed, has avoided because high temperature seal damage or change filter core or installation error when sealed cause a large amount of dust get into flue gas analysis system influence measurement accuracy or system thoroughly scrap after sealed damage.
Drawings
FIG. 1 is a front view of a sampling probe assembly;
FIG. 2 is an assembled side view of a sampling probe;
FIG. 3 is a front view of the filter cartridge assembly;
FIG. 4 is a side view of the filter cartridge assembly;
FIG. 5 is a front view of a gas distribution base;
FIG. 6 is a side view of a gas distribution base;
FIG. 7 is a front view of a gas panel;
FIG. 8 is a side view of the distributor plate;
FIG. 9 is an enlarged partial view of the left side seal of the probe;
in the figure: the filter core assembly comprises a filter core assembly 1, an air distribution base 2, an O-shaped seal 3, a seal flat gasket 4, an air distribution disc 5, a central pipe 6, a blowing air hole 7, a blowing air hole 8 and a sampling air hole 9.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached drawings 1-9, a gas analysis sampling probe used in a high-temperature dusty environment comprises a filter element assembly 1, a gas distribution base 2, an O-shaped seal 3, a seal flat gasket 4, a gas distribution disc 5 and a central tube 6, wherein the filter element assembly 1 is composed of the central tube 6 and a filter cartridge which are concentrically arranged, the filter cartridge comprises an A section, a B section and a C section which are integrated into a whole, the A section is in a thin-wall cylindrical shape, the left end of the A section is open, the right end of the A section is sealed with a cover plate, a circular hole with the same diameter as the central tube 6 is processed on the cover plate, the central tube penetrates through the middle of the circular hole, the left side of the A section and the B section are welded into a whole, the B section is a stainless steel sintered filter element and is in a thin-wall cylindrical shape, the C section and the A section are in the same shape, and the end surface of the C section is processed with four fan-shaped holes; the gas distribution base 2 is in a disc shape, a bolt through hole is processed in the middle of the gas distribution base 2, a first circle outward of the bolt through hole is processed with an annular groove, a sampling air hole 9 is processed below the annular groove, and the sampling air hole 9 is perpendicular to the end face of the gas distribution base 2 and is communicated with the annular groove of the first circle after penetrating through the end face; an annular groove is also processed on the second ring outwards from the bolt through hole, a scavenging air hole 8 is processed on the left side of the annular groove, and the scavenging air hole 8 is perpendicular to the end face 2 of the air distribution base, penetrates through the end face and is communicated with the annular groove of the second ring; the gas distribution plate 5 is of an annular structure, a plurality of vent holes are formed in the circumferential direction of the gas distribution plate 5, and the gas distribution plate 5 is welded on the gas distribution base 2 on one side provided with an annular groove; one end of the central tube 6 close to the section C of the filter cartridge is connected with the gas distribution disc 5 through threads, and an O-shaped seal 3 and a seal flat gasket 4 are arranged between the outer cylindrical surface of the section C of the filter cartridge and the gas distribution disc 5.
In the present embodiment, as shown in fig. 1 and 2, a bolt hole is processed in the center of the gas distribution plate 5, and an external thread matched with the bolt hole is processed on the central tube 6 of the filter element assembly 1, the filter element assembly is assembled together by means of the thread, the sampling gas channel is isolated from the converter flue gas by the O-shaped seal 3 and the seal flat gasket 4, and the axis of the filter element assembly is perpendicular to the end face of the gas distribution plate.
Fig. 3 and 4 show that the filter element assembly 1 is composed of a central tube 6, a filter cartridge section a, a section B and a section C. The left side of the central tube 6 is provided with external threads, and the right side of the central tube is provided with a conical outlet which slightly shrinks to increase the blowing force. The filter cartridge is formed by welding an A section, a B section and a C section, wherein the A section is in a thin-wall cylindrical shape, the left end of the A section is open, the right end of the A section is sealed with a cover plate, a circular hole with the diameter equal to that of the central tube 6 is processed on the cover plate, and the central tube penetrates through the middle of the circular hole and is welded into a whole. The left side of the section A and the section B are welded into a whole. The section B is a stainless steel sintered filter element and is in a thin-wall cylindrical shape, and the filtering precision is determined according to the dust granularity of the sampled gas. The section C is the same as the section A in shape, four fan-shaped holes are processed on the end face of the section C, and sampled gas can enter a sampling gas pipeline to enter an analyzer after passing through a filter element. The remaining fixing ribs after the sector holes are removed are welded with the central tube 6 into a whole, the positioning performance and rigidity of the whole filter element are improved, the left side of the central tube is prevented from swinging, and a U-shaped groove is machined in the middle of the outer cylindrical surface of the C section and used for installing the O-shaped seal 3.
Fig. 5 and 6 show a gas distribution base 2, wherein the gas distribution base 2 is in a disc shape and is provided with a gas path. A bolt through hole blowing air hole 7 is processed in the middle of the gas distribution base 2, and is used for fixing the filter element and is used as a blowing air passage of the sample air channel. An annular groove is processed at the first circle outwards of the bolt through hole, and a through hole sampling air hole 9 is processed below the annular groove, is vertical to the end face of the gas distribution base, penetrates through the end face of the gas distribution base and is communicated with the annular groove to be used as a sampling gas extraction channel. An annular groove is processed on the outward second ring of the bolt through hole, a through hole blowing air hole 8 is processed on the left side of the annular groove, is perpendicular to the end face of the gas distribution base, penetrates through the end face of the gas distribution base and is communicated with the annular groove to serve as a filter element blowing air passage, and the gas distribution plate 4 is welded on the gas distribution base and is located on the right side of the annular groove. Four through holes are processed on the outer ring of the gas distribution base 2 and used for fixing the whole set of sampling filter element on a steel structure of sampled gas.
Fig. 7 and 8 show the gas distribution plate 5 which is of an annular structure and is uniformly provided with 8 vent holes with axes vertical to the end face. The gas distribution plate 5 is welded on the gas distribution base 2, and the sealing performance of a welding line is guaranteed during welding. To ensure even distribution of the purge gas, the purge gas holes 8 are aligned with the gas distribution plate 5 at locations where there are no vent holes.
The using process is as follows:
a mounting flange is welded on a primary dust removal flue of the converter, and a sample gas pipeline with double flanges is mounted on the flue. The gas sampling pipe suction hole is inserted into the middle position of the flue, so that the gas sampling is accurate. The probe was mounted to the other flange of the sample gas line and sealed with an O-ring seal. The cutting sleeve joint with proper size is welded at the corresponding positions of the blowing air hole 7, the blowing air hole 8 and the sampling air hole 9, and then the corresponding air pipe is arranged on the cutting sleeve joint, so that the probe is connected into a gas pipeline of a gas analysis device to realize the gas sampling analysis function.
During operation, sample gas pocket 3 is used for the analysis to use after extracting gas from the flue and filtering through the filter core, and when the analysis appearance was out of work, according to the program time setting from jetting gas pocket 1, purge gas hole 2 injection high pressure nitrogen gas that sweeps, the realization is to deposition and filter core surface deposition in the sample gas pipeline to prevent that the deposition from blockking up pipeline and filter core, guarantee the gas analysis accuracy.
Claims (5)
1. A gas analysis sampling probe for high temperature dusty environment which characterized in that: the filter element assembly comprises a filter element assembly (1), a gas distribution base (2), an O-shaped seal (3), a seal flat gasket (4), a gas distribution disc (5) and a central tube (6), wherein the filter element assembly (1) consists of the central tube (6) and a filter cartridge which are concentrically arranged, the filter cartridge comprises an A section, a B section and a C section which are integrated into a whole, the A section is in a thin-wall cylindrical shape, the left end of the A section is open, the right end of the A section is sealed with a cover plate, the cover plate is processed with a round hole with the same diameter as the central tube (6), the central tube penetrates through the middle of the round hole, the left side of the A section and the B section are welded into a whole, the B section is a stainless steel sintered filter element and is in a thin-wall cylindrical shape, the C section is in the same shape as the A section, and the end face of the C section is processed with four fan-shaped holes; the gas distribution base (2) is in a disc shape, a bolt through hole is processed in the middle of the gas distribution base (2), a first circle outward of the bolt through hole is processed with an annular groove, a sampling air hole (9) is processed below the annular groove, and the sampling air hole (9) is perpendicular to the end face of the gas distribution base (2), penetrates through the end face and is communicated with the first circle of the annular groove; an annular groove is also processed on the outward second ring of the bolt through hole, a purge gas hole (8) is processed on the left side of the annular groove, and the purge gas hole (8) is vertical to the end face of the gas distribution base (2), penetrates through the end face and is communicated with the second ring of the annular groove; the gas distribution plate (5) is of an annular structure, a plurality of vent holes are formed in the circumferential direction of the gas distribution plate (5), and the gas distribution plate (5) is welded on the gas distribution base (2) on one side of the annular groove; one end of the central tube (6) close to the section C of the filter cartridge is connected with the gas distribution disc (5) in a threaded manner, and an O-shaped seal (3) and a seal flat gasket (4) are arranged between the outer cylindrical surface of the section C of the filter cartridge and the gas distribution disc (5).
2. A gas analysis sampling probe for use in high temperature dusty environments according to claim 1, wherein: the one end that center tube (6) is close to cartridge filter C section is equipped with the external screw thread, the central authorities of air distribution dish (5) be equipped with center tube (6) assorted screw hole.
3. A gas analysis sampling probe for use in high temperature dusty environments according to claim 2, wherein: one end of the central tube (6) close to the section A of the filter cartridge is in a conical shape which gradually shrinks.
4. A gas analysis sampling probe for use in high temperature dusty environments according to claim 1, wherein: and a U-shaped groove matched with the O-shaped seal (3) is arranged in the middle of the outer cylindrical surface of the C section of the filter cartridge.
5. A gas analysis sampling probe for use in high temperature dusty environments according to claim 1, wherein: four through holes are processed on the outer ring of the air distribution base (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222260299.7U CN218725762U (en) | 2022-08-26 | 2022-08-26 | Gas analysis sampling probe used in high-temperature dusty environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222260299.7U CN218725762U (en) | 2022-08-26 | 2022-08-26 | Gas analysis sampling probe used in high-temperature dusty environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218725762U true CN218725762U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222260299.7U Active CN218725762U (en) | 2022-08-26 | 2022-08-26 | Gas analysis sampling probe used in high-temperature dusty environment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848792A (en) * | 2024-03-06 | 2024-04-09 | 北京中投润天环保科技有限公司 | Environment-friendly incinerator exhaust gas sampling device |
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2022
- 2022-08-26 CN CN202222260299.7U patent/CN218725762U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117848792A (en) * | 2024-03-06 | 2024-04-09 | 北京中投润天环保科技有限公司 | Environment-friendly incinerator exhaust gas sampling device |
| CN117848792B (en) * | 2024-03-06 | 2024-05-28 | 北京中投润天环保科技有限公司 | Environment-friendly incinerator exhaust gas sampling device |
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