CN219694651U - Waste gas comparison sampling probe - Google Patents
Waste gas comparison sampling probe Download PDFInfo
- Publication number
- CN219694651U CN219694651U CN202320645671.8U CN202320645671U CN219694651U CN 219694651 U CN219694651 U CN 219694651U CN 202320645671 U CN202320645671 U CN 202320645671U CN 219694651 U CN219694651 U CN 219694651U
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- CN
- China
- Prior art keywords
- base
- filter membrane
- built
- sampling
- exhaust gas
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- 238000005070 sampling Methods 0.000 title claims abstract description 49
- 239000000523 sample Substances 0.000 title claims abstract description 30
- 239000002912 waste gas Substances 0.000 title claims abstract description 8
- 239000012528 membrane Substances 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 24
- 239000010935 stainless steel Substances 0.000 claims abstract description 24
- 238000013461 design Methods 0.000 claims description 3
- 230000005489 elastic deformation Effects 0.000 abstract description 6
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides an exhaust gas comparison sampling probe, and relates to the field of exhaust gas sampling. The waste gas comparison sampling probe comprises a sampling elbow, a sampling head is arranged at one end of the sampling elbow, a base is fixedly connected to the lower end of the sampling elbow, a filter membrane is arranged in the base, a stainless steel supporting net is arranged on one side of the filter membrane, and a sealing ferrule is clamped at the lower end of the base. According to the exhaust gas comparison sampling probe provided by the utility model, the first sliding port and the second sliding port at the two ends of the filter membrane and the stainless steel support net are respectively aligned with the two limiting rods for sliding insertion, so that the filter membrane and the stainless steel support net can be rapidly and accurately aligned and installed, and the small springs can restore elastic deformation, and the filter membrane and the stainless steel support net can be directly pushed out, so that the filter membrane and the stainless steel support net are conveniently taken out by workers; when the sealing ring is clamped with the base, one ends of the two clamping rods slide into the two grooves, so that the sealing ring and the base can be firmly locked.
Description
Technical Field
The utility model relates to the field of waste gas sampling, in particular to a waste gas comparison sampling probe.
Background
Exhaust gas sampling is an important link in pollutant emission, equipment performance tests and environmental protection supervision. Sampling the exhaust gas mainly includes sampling the exhaust gas temperature, exhaust gas flow rate, particulate matter mass concentration, exhaust gas humidity, and exhaust gas composition. A comparison experiment is typically performed using the exhaust gas comparison sampling probe to sample the exhaust gas.
The existing waste gas comparison sampling probe structure is formed by matching a bent pipe, a filter membrane and a supporting net, when the filter membrane and the supporting net are installed, the side wall of the probe is difficult to be completely attached to the inner wall of a base, gaps are easily caused by dislocation during installation to influence the test, and the filter membrane and the supporting net after the sampling are also easy to clamp in the base and difficult to take out; and seal ring is the direct card and locates on the base and be used for spacing filter membrane and support the net, but in actual monitoring process, need install the holistic grafting of probe in the front end department of sampling pipe, because seal ring's joint is not very firm, the in-process of extracting the probe at the test end leads to the fact seal ring's whereabouts easily to direct influence follow-up sampling experiment.
Therefore, it is necessary to provide a new exhaust gas comparison sampling probe to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the utility model provides an exhaust gas comparison sampling probe.
The utility model provides an exhaust gas comparison sampling probe, which comprises: the device comprises a sampling elbow, wherein a sampling head is arranged at one end of the sampling elbow, a base is fixedly connected to the lower end of the sampling elbow, a filter membrane is arranged in the base, a stainless steel supporting net is arranged on one side of the filter membrane, and a sealing ferrule is clamped at the lower end of the base; the positioning and ejecting assembly comprises two limiting rods, one ends of the limiting rods are fixedly connected with the inner wall of the base, small springs are sleeved on the limiting rods, and pushing sheets are slidably connected to the limiting rods.
Preferably, one ends of the two small springs are connected with the inner wall of the base, and the other ends of the two small springs are connected with the two pushing sheets respectively.
Preferably, the two ends of the filter membrane are respectively provided with a first sliding port, and the first sliding ports at the two ends of the filter membrane are respectively connected with the two limiting rods in a sliding manner.
Preferably, the two ends of the stainless steel support net are respectively provided with a second sliding opening, and the second sliding openings at the two ends of the stainless steel support net are respectively in sliding connection with the two limiting rods.
Preferably, the pestle is inserted to the equal fixedly connected with in both ends of base, the both ends of sealing ring all are equipped with the locating hole, the locating hole at sealing ring both ends respectively with two pestles sliding connection of inserting.
Preferably, grooves are formed in the side walls of the inserted pestles, built-in cavities are formed in the two ends of the sealing ferrule, locking components are arranged in the built-in cavities, each locking component comprises a clamping rod, the clamping rods are slidably connected with the cavity walls of the two ends of the built-in cavity, one ends of the clamping rods are of oblique head design, built-in springs are sleeved on the clamping rods, one ends of the built-in springs are connected with protrusions on the clamping rods, and the other ends of the built-in springs are connected with the cavity walls of the built-in cavities.
Preferably, one end of the clamping rod is fixedly connected with a magnetic block, one end of the built-in cavity is provided with an embedded groove, and the magnetic block is arranged in the embedded groove.
Compared with the related art, the waste gas comparison sampling probe provided by the utility model has the following beneficial effects:
1. the utility model provides an exhaust gas comparison sampling probe, wherein a first sliding port and a second sliding port at two ends of a filter membrane and a stainless steel support net are respectively aligned with two limiting rods for sliding insertion, so that two pushing sheets slide to drive a small spring to elastically deform, the filter membrane and the stainless steel support net can be rapidly and accurately aligned and installed, the small spring recovers the elastic deformation, and the filter membrane and the stainless steel support net can be directly pushed out, thereby facilitating the extraction of workers;
2. according to the exhaust gas comparison sampling probe, when the sealing ferrule is clamped on the base, the plug pestles at the two ends of the sealing ferrule are simultaneously inserted into the two positioning openings in a sliding mode, one ends of the two clamping rods slide into the two grooves, and therefore firm locking of the sealing ferrule and the base can be achieved quickly, and the problem that the sealing ferrule is easy to separate in the process of extracting the probe is effectively avoided.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of an exhaust gas comparison sampling probe according to the present utility model;
FIG. 2 is a schematic view of the structure at A shown in FIG. 1;
FIG. 3 is a schematic view of the structure at B shown in FIG. 2;
fig. 4 is a schematic structural view at C shown in fig. 2.
Reference numerals in the drawings: 1. a sampling elbow; 2. a base; 3. a filter membrane; 4. stainless steel support net; 5. a sealing collar; 6. a limit rod; 61. a small spring; 62. pushing the sheet; 7. inserting a pestle; 71. a clamping rod; 72. a built-in spring; 73. a magnetic block.
Detailed Description
The utility model will be further described with reference to the drawings and embodiments.
Referring to fig. 1 to 4 in combination, the exhaust gas comparison sampling probe includes: the device comprises a sampling bent pipe 1, wherein a sampling head is arranged at one end of the sampling bent pipe 1, a base 2 is fixedly connected to the lower end of the sampling bent pipe 1, a filter membrane 3 is arranged in the base 2, a stainless steel supporting net 4 is arranged on one side of the filter membrane 3, and a sealing ferrule 5 is clamped at the lower end of the base 2; the positioning and ejecting assembly comprises two limiting rods 6, one ends of the two limiting rods 6 are fixedly connected with the inner wall of the base 2, small springs 61 are sleeved on the two limiting rods 6, and pushing pieces 62 are slidably connected to the two limiting rods 6.
In the specific implementation process, as shown in fig. 2 and 3, one ends of two small springs 61 are connected to the inner wall of the base 2, and the other ends of the two small springs 61 are connected to two pushing pieces 62 respectively.
It should be noted that: the small spring 61 recovers the elastic deformation, and the filter membrane 3 and the stainless steel supporting net 4 can be directly pushed out by the pushing piece 62.
Referring to fig. 2 and 3, the two ends of the filter membrane 3 are respectively provided with a first sliding port, and the first sliding ports at the two ends of the filter membrane 3 are respectively connected with two limiting rods 6 in a sliding manner.
Referring to fig. 2 and 3, two ends of the stainless steel supporting net 4 are respectively provided with a second sliding opening, and the second sliding openings at two ends of the stainless steel supporting net 4 are respectively connected with two limiting rods 6 in a sliding manner.
It should be noted that: the first sliding openings and the second sliding openings at the two ends of the stainless steel support net are aligned with the two limiting rods 6 in sequence to be inserted in a sliding mode, so that the two push plates 62 slide along with the two limiting rods, the small springs 61 are elastically deformed, and the rapid and accurate alignment installation of the filter membrane 3 and the stainless steel support net 4 can be achieved.
Referring to fig. 2 and 4, two ends of the base 2 are fixedly connected with insert pestles 7, two ends of the sealing ring 5 are provided with positioning openings, and the positioning openings at two ends of the sealing ring 5 are respectively connected with the two insert pestles 7 in a sliding manner; grooves are formed in the side walls of the two insert pestles 7, built-in cavities are formed in the two ends of the sealing ferrule 5, locking components are arranged in the two built-in cavities, each locking component comprises a clamping rod 71, the clamping rods 71 are slidably connected with the cavity walls of the two ends of the built-in cavity, one end of each clamping rod 71 is of an oblique head design, a built-in spring 72 is sleeved on each clamping rod 71, one end of each built-in spring 72 is connected with a protrusion on each clamping rod 71, and the other end of each built-in spring 72 is connected with the cavity wall of the built-in cavity.
It should be noted that: when the lower ends of the two insert pestles 7 are propped against one ends of the two clamping rods 71, the two clamping rods 71 slide relative to the two built-in cavities, so that the two clamping rods 71 slide and retract, and the two built-in springs 72 are elastically deformed;
when one end of the two clamping rods 71 moves to be aligned with the grooves on the two insert pestles 7, the two built-in springs 72 recover the elastic deformation, so that one end of the two clamping rods 71 slides into the two grooves, and the firm locking of the sealing ferrule 5 and the base 2 can be realized quickly.
Referring to fig. 4, a magnetic block 73 is fixedly connected to one end of the clamping rod 71, an embedded groove is formed in one end of the inner cavity, and the magnetic block 73 is arranged in the embedded groove.
It should be noted that: when the assembly and disassembly are needed, the magnet is used to approach the adsorption magnetic block 73, so that the clamping rod 71 can be driven to slide relative to the built-in cavity.
The working principle of the exhaust gas comparison sampling probe provided by the utility model is as follows: when the filter membrane 3 and the stainless steel support net 4 are installed, the first sliding ports and the second sliding ports at the two ends of the filter membrane are aligned with the two limiting rods 6 in sequence to be inserted in a sliding way, so that the two push plates 62 slide along with the sliding, and the small springs 61 elastically deform, thereby realizing rapid and accurate alignment installation of the filter membrane 3 and the stainless steel support net 4; when the sealing ring 5 is taken down, the small spring 61 recovers the elastic deformation, and the filter membrane 3 and the stainless steel supporting net 4 can be directly pushed out, so that the filter membrane is convenient for a worker to take out.
When the sealing ring 5 is clamped with the base 2, the insert pestles 7 at the two ends of the sealing ring are simultaneously inserted into the two positioning openings in a sliding mode, when the lower ends of the two insert pestles 7 are propped against one ends of the two clamping rods 71, the two clamping rods 71 slide relative to the two built-in cavities, the two clamping rods 71 slide and retract, the two built-in springs 72 are elastically deformed, when one ends of the two clamping rods 71 move to be aligned with the grooves on the two insert pestles 7, the two built-in springs 72 recover the elastic deformation, one ends of the two clamping rods 71 slide into the two grooves, firm locking of the sealing ring 5 and the base 2 can be realized quickly, and the problem that the sealing ring 5 is easy to separate in the process of extracting a probe is effectively avoided.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.
Claims (7)
1. Waste gas compares sampling probe, its characterized in that includes:
the device comprises a sampling elbow pipe (1), wherein a sampling head is arranged at one end of the sampling elbow pipe (1), a base (2) is fixedly connected to the lower end of the sampling elbow pipe (1), a filter membrane (3) is arranged in the base (2), a stainless steel supporting net (4) is arranged on one side of the filter membrane (3), and a sealing ferrule (5) is clamped at the lower end of the base (2);
the positioning and ejecting assembly comprises two limiting rods (6), one ends of the limiting rods (6) are fixedly connected with the inner wall of the base (2), small springs (61) are sleeved on the limiting rods (6), and pushing pieces (62) are slidably connected to the limiting rods (6).
2. The exhaust gas comparison sampling probe according to claim 1, wherein one end of each of the two small springs (61) is connected with the inner wall of the base (2), and the other ends of the two small springs (61) are respectively connected with two pushing pieces (62).
3. The exhaust gas comparison sampling probe according to claim 1, wherein the two ends of the filter membrane (3) are respectively provided with a first sliding port, and the first sliding ports at the two ends of the filter membrane (3) are respectively in sliding connection with the two limiting rods (6).
4. The exhaust gas comparison sampling probe according to claim 1, wherein the two ends of the stainless steel supporting net (4) are respectively provided with a second sliding port, and the second sliding ports at the two ends of the stainless steel supporting net (4) are respectively connected with the two limiting rods (6) in a sliding manner.
5. The exhaust gas comparison sampling probe according to claim 1, wherein the two ends of the base (2) are fixedly connected with plug pestles (7), the two ends of the sealing ferrule (5) are provided with positioning openings, and the positioning openings at the two ends of the sealing ferrule (5) are respectively connected with the two plug pestles (7) in a sliding manner.
6. The exhaust gas comparison sampling probe according to claim 5, wherein grooves are formed in the side walls of the two insert pestles (7), built-in cavities are formed in the two ends of the sealing ferrule (5), locking components are arranged in the two built-in cavities, each locking component comprises a clamping rod (71), the clamping rods (71) are slidably connected with the two end cavity walls of the built-in cavity, one end of each clamping rod (71) is in a bevel head design, a built-in spring (72) is sleeved on each clamping rod (71), one end of each built-in spring (72) is connected with a protrusion on each clamping rod (71), and the other end of each built-in spring (72) is connected with the cavity wall of the built-in cavity.
7. The exhaust gas comparison sampling probe according to claim 6, wherein one end of the clamping rod (71) is fixedly connected with a magnetic block (73), one end of the built-in cavity is provided with an embedded groove, and the magnetic block (73) is arranged in the embedded groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320645671.8U CN219694651U (en) | 2023-03-29 | 2023-03-29 | Waste gas comparison sampling probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320645671.8U CN219694651U (en) | 2023-03-29 | 2023-03-29 | Waste gas comparison sampling probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219694651U true CN219694651U (en) | 2023-09-15 |
Family
ID=87944139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320645671.8U Active CN219694651U (en) | 2023-03-29 | 2023-03-29 | Waste gas comparison sampling probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219694651U (en) |
-
2023
- 2023-03-29 CN CN202320645671.8U patent/CN219694651U/en active Active
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| GR01 | Patent grant |