CN217765694U - Sampling device for exhaust gas detection - Google Patents
Sampling device for exhaust gas detection Download PDFInfo
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- CN217765694U CN217765694U CN202221834589.1U CN202221834589U CN217765694U CN 217765694 U CN217765694 U CN 217765694U CN 202221834589 U CN202221834589 U CN 202221834589U CN 217765694 U CN217765694 U CN 217765694U
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- Prior art keywords
- gas
- gas collecting
- sampling device
- elastic sealing
- sealing
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- 238000005070 sampling Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 63
- 239000007789 gas Substances 0.000 abstract description 77
- 239000002912 waste gas Substances 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of waste gas treatment, concretely relates to sampling device for waste gas detection, which comprises a housing, wherein a rotary disc with rotational freedom degree is installed in the housing, a group of gas collecting pipes are fixed and limited on the rotary disc, a sealing plate for sealing the housing is arranged above the gas collecting pipes, the sealing plate has freedom degree of moving up and down along the inner wall of the housing, a connecting pipeline is arranged on the sealing plate, the connecting pipeline is connected with a gas collecting pump in a sealing way, and the gas collecting pump is connected with a gas collecting head; make a set of gas collecting pipe on the carousel can divide batch to rotate the connecting tube below through the rotation of carousel, reciprocate through the closing plate and make the connecting tube can communicate with the gas collecting pipe, and is further, inserts the gas collecting pipe with the help of the cooperation of toper gas outlet head and elastic sealing plug, bell mouth and collects waste gas, can be with the help of the elastic sealing plug's elastic sealing gas collecting pipe.
Description
Technical Field
The utility model belongs to the technical field of exhaust-gas treatment, concretely relates to sampling device for exhaust-gas detection.
Background
The waste gas refers to toxic and harmful gas discharged by human in the production and living process, and especially generates a large amount of waste gas in industrial production. In order to determine the kind and content of harmful substances in the exhaust gas, or to check whether the purified exhaust gas meets the emission standard, the exhaust gas needs to be inspected. But because the waste gas detector belongs to the precision instrument, be difficult to some with the detector condition in place of carrying, then need treat to detect waste gas and sample, in the sampling process, waste gas can lead to the sample degree of accuracy to reduce with original air mixing in aspiration pump or the gas collecting bottle, and to whole device evacuation cost again than higher.
Therefore, a sampling device which does not need to vacuumize the whole body and ensures high accuracy of detection results is needed.
SUMMERY OF THE UTILITY MODEL
To above problem, the utility model provides a sampling device for exhaust-gas detection can set up a set of discharge, detects the discharge of difference respectively, selects several groups that numerical value is closest to get the average value, obtains more accurate detected data.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the utility model provides a sampling device for exhaust-gas detection, includes the casing, and the key is: the improved gas collecting device is characterized in that a rotary disc with rotational freedom degree is installed in the shell, a group of gas collecting pipes are fixed and limited on the rotary disc, a sealing plate for sealing the shell is arranged above the gas collecting pipes, the sealing plate has freedom degree moving up and down along the inner wall of the shell, a connecting pipeline is arranged on the sealing plate and is in sealing connection with a gas collecting pump, and the gas collecting pump is connected with a gas collecting head.
The gas collecting pipe on the rotary table is rotated to the lower part of the connecting pipeline through the rotation of the rotary table to collect waste gas flowing out of the connecting pipeline, the sealing plate can move up and down, the rotary table rotates to enable the sealing plate to move up, and after the rotary table stops rotating, the sealing plate moves down to enable the connecting pipeline to be communicated with the gas collecting pipe.
Preferably, the gas collecting pipe is sealed by means of an elastic sealing plug, and a conical hole is formed in the elastic sealing plug; an air inlet pipe is arranged between the air collecting pump and the connecting pipeline, a connecting portion and a conical air outlet head are arranged at one end, connected with the connecting pipeline, of the air inlet pipe, the connecting portion is in threaded connection with the connecting pipeline, and the conical air outlet head is matched with the conical hole for use.
The conical gas outlet head is inserted into the connecting pipeline from top to bottom and extends out of the connecting pipeline, and is fixedly connected with the connecting pipeline through the connecting part, when the rotary table rotates the gas collecting pipe to the lower part of the connecting pipeline, the sealing plate moves downwards to enable the conical gas outlet head to be inserted into the conical hole and penetrate through the bottom of the conical hole to be inserted into the gas collecting pipe to flow into waste gas, the conical gas outlet hole is pulled out after the gas collecting pipe is filled with the waste gas, and the elastic sealing plug is elastically tightened up to close the sealed gas collecting pipe.
Preferably, the bottom of the shell is provided with a lifting device, and the lifting device is fixedly connected with the sealing plate and controls the sealing plate to move up and down along the inner wall of the shell.
Preferably, the sealing plate is provided with a slide rail groove, the inner wall of the shell is provided with a slide rail, and the slide rail groove is matched with the slide rail for use.
Preferably, the elastic sealing plug is fixed on the gas collecting pipe by means of a hoop.
Preferably, the elastic sealing plug is elastic rubber.
The utility model has the advantages that: when the rotary plate type exhaust gas collecting device is used, a group of gas collecting pipes on the rotary plate can be rotated to the lower side of the connecting pipeline in batches through rotation of the rotary plate, the connecting pipeline can be communicated with the gas collecting pipes through reciprocating of the sealing plate, further, waste gas is collected by inserting the conical gas outlet head into the gas collecting pipes through cooperation of the elastic sealing plug and the conical hole, and the gas collecting pipes can be sealed through the elasticity of the elastic sealing plug.
Drawings
FIG. 1 is a schematic structural diagram of a sampling device for exhaust gas detection in an embodiment;
FIG. 2 is an exploded view of a sampling device for exhaust gas detection according to an embodiment;
FIG. 3 is a schematic sectional view of a sampling apparatus for exhaust gas detection according to an embodiment;
FIG. 4 is a schematic structural diagram of a gas collecting tube and a gas collecting head in the embodiment;
FIG. 5 is a schematic cross-sectional view of a gas header and a gas header in an embodiment;
in the figure: 1 represents a housing; 101 represents a slide rail; 2 represents a turntable; 3 represents a gas collecting pipe; 4 represents an elastic sealing plug; 401 represents a tapered hole; 402 represents a clip; 5 denotes an intake pipe; 501 represents a connecting part; 502 represents a conical gas outlet head; 6 represents an air collecting pump; 601 represents a gas collecting head; 7 represents a sealing plate; 701 represents a connecting pipe; 702 represents a slide groove; and 8, a lifting device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended for purposes of illustration only and is not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Detailed description of the preferred embodimentsfor the embodiments shown in fig. 1, 2, 3, 4 and 5, a sampling device for exhaust gas detection comprises a housing 1, and is characterized in that: install the carousel 2 that has the rotational degree of freedom in casing 1, it is spacing to have a set of discharge 3 to fix on carousel 2, and discharge 3 top is provided with the closing plate 7 of sealed casing 1, and closing plate 7 has the degree of freedom that reciprocates along the casing 1 inner wall, has seted up connecting tube 701 on the closing plate 7, connecting tube 701 and gas collection pump 6 sealing connection, and gas collection pump 6 is connected with gas collecting head 601.
Specifically, an air inlet pipe 5 is arranged between the air collecting pump 6 and the connecting pipeline 701, a connecting part 501 and a conical air outlet head 502 are arranged at one end of the air inlet pipe 5 connected with the connecting pipeline 701, and the connecting part 501 is in threaded connection with the connecting pipeline 701; the gas collecting pipe 3 is sealed by means of an elastic sealing plug 4, a tapered hole 401 is formed in the elastic sealing plug 4, the aperture of the bottom end of the tapered hole 401 is small, the elastic sealing plug 4 is made of elastic rubber, the elastic sealing plug 4 is fixed on the gas collecting pipe 3 by means of a hoop 402 by means of the elastic sealing plug 4, and the hoop 402 simultaneously plays a role of gathering the elastic sealing plug 4 towards the middle, so that the tapered hole 401 can be tightened to achieve a sealing effect in a normal state of the elastic sealing plug 4; the conical gas outlet head 502 is inserted into the conical hole 401, the elastic sealing plug 4 is extruded towards the periphery and inserted into the gas collecting pipe 3, and after the conical gas outlet head 502 is pulled out, the extruded elastic sealing plug 4 expands again to close the conical hole 401.
The bottom of the shell 1 is provided with a lifting device 8, the lifting device 8 is fixedly connected with the sealing plate 7, and the sealing plate 7 is controlled to move up and down along the inner wall of the shell 1; the sealing plate 7 is provided with a slide rail groove 702, the inner wall of the shell 1 is provided with a slide rail 101, and the slide rail groove 702 is matched with the slide rail 101 for use.
The working principle is as follows: an elastic sealing plug 4 is arranged on a gas collecting pipe 3, the rest of the gas collecting pipe 3 of the elastic sealing plug 4 is fixedly connected with a hoop 402, the elastic sealing plug 4 is self-sealed with a tapered hole by virtue of the elasticity of the elastic sealing plug 4 and the tightening force of the hoop 402, the vacuumized gas collecting pipe 3 is placed in a groove of a turntable 2, the gas collecting pipe 3 is well fixed, an electric push rod or an air pressure and hydraulic rod is selected by a lifting device 8, a sealing plate 7 is preferably selected by the electric push rod and fixedly connected with the lifting device 8, a slide rail groove 702 is matched with a slide rail 101, the sealing plate 7 can move up and down along the inner wall of a shell 1 according to the up-down pushing of the lifting device 8, the sealing plate 7 is pushed to the vertex, a conical gas outlet head 502 is inserted into a connecting pipeline 701, a connecting part 401 is screwed up and sealed by adopting a sealing ring or a sealing gasket, the step pitch of the turntable 2 is set by virtue of a PLC or other programs, and the gas collecting pipe 3 is just below the connecting pipeline 701 when the turntable 2 rotates each time. During the use, carousel 2 rotates collecting main 3 to connecting line 701 below, starts album of gas pump 6, and closing plate 7 drives toper gas outlet 502 and inserts downwards along bell mouth 401, and toper gas outlet 502 extrudees 4 tops of elastic sealing plug and passes in conical mouth 401 inserts collecting main 3, and closing plate 7 moves up after the waste gas fills up collecting main 3, and toper gas outlet 502 extracts, and carousel 2 rotates and carries next collecting main 3 to connecting line 701 below, repeats above-mentioned process.
After the collection is completed, the group of gas collecting pipes 3 are all conveyed to the detector to be respectively detected, air in the pipeline of the gas collecting pump 6 can exist in the first filled gas collecting pipe 3, the air is inaccurate, and after the air in the gas collecting pump 6 is completely discharged, the gas collecting pipes 3 are filled with the waste gas to be detected. The sampling device for waste gas detection in the scheme can reduce waste gas emission in the process of collecting and sampling, and the sampling result is more accurate.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. The utility model provides a sampling device for exhaust-gas detection, includes casing (1), its characterized in that: install carousel (2) that have rotatory degree of freedom in casing (1), it is spacing to be fixed on carousel (2) has a set of discharge tube (3), discharge tube (3) top is provided with closing plate (7) of sealed casing (1), closing plate (7) have the degree of freedom that reciprocates along casing (1) inner wall, connecting tube (701) have been seted up on closing plate (7), connecting tube (701) and gas collection pump (6) sealing connection, gas collection pump (6) are connected with gas collection head (601).
2. The sampling device for exhaust gas detection according to claim 1, characterized in that: the gas collecting pipe (3) is sealed by an elastic sealing plug (4), and a conical hole (401) is formed in the elastic sealing plug (4); be provided with intake pipe (5) between air collecting pump (6) and connecting tube (701), the one end that intake pipe (5) and connecting tube (701) are connected is provided with connecting portion (501) and toper play gas head (502), connecting portion (501) and connecting tube (701) threaded connection, toper play gas head (502) and bell mouth (401) cooperation are used.
3. The sampling device for exhaust gas detection according to claim 2, characterized in that: the sealing device is characterized in that a lifting device (8) is arranged at the bottom of the shell (1), the lifting device (8) is fixedly connected with the sealing plate (7), and the sealing plate (7) is controlled to move up and down along the inner wall of the shell (1).
4. The sampling device for exhaust gas detection according to claim 3, characterized in that: a sliding rail groove (702) is formed in the sealing plate (7), a sliding rail (101) is arranged on the inner wall of the shell (1), and the sliding rail groove (702) is matched with the sliding rail (101) for use.
5. The sampling device for exhaust gas detection according to claim 2, characterized in that: the elastic sealing plug (4) is fixed on the gas collecting pipe (3) by means of a hoop (402).
6. The sampling device for exhaust gas detection according to claim 2, characterized in that: the elastic sealing plug (4) is made of elastic rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221834589.1U CN217765694U (en) | 2022-07-18 | 2022-07-18 | Sampling device for exhaust gas detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221834589.1U CN217765694U (en) | 2022-07-18 | 2022-07-18 | Sampling device for exhaust gas detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217765694U true CN217765694U (en) | 2022-11-08 |
Family
ID=83873347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221834589.1U Expired - Fee Related CN217765694U (en) | 2022-07-18 | 2022-07-18 | Sampling device for exhaust gas detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217765694U (en) |
-
2022
- 2022-07-18 CN CN202221834589.1U patent/CN217765694U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |