CN220872169U - Waterproof dustproof gas sampling device - Google Patents
Waterproof dustproof gas sampling device Download PDFInfo
- Publication number
- CN220872169U CN220872169U CN202322381597.6U CN202322381597U CN220872169U CN 220872169 U CN220872169 U CN 220872169U CN 202322381597 U CN202322381597 U CN 202322381597U CN 220872169 U CN220872169 U CN 220872169U
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- filter
- upper cover
- waterproof
- internal thread
- gas sampling
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- 238000005070 sampling Methods 0.000 title claims abstract description 37
- 238000005245 sintering Methods 0.000 claims abstract description 17
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 24
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 24
- 239000012528 membrane Substances 0.000 claims description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims description 22
- 239000010935 stainless steel Substances 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 abstract description 8
- 238000001914 filtration Methods 0.000 abstract description 8
- 231100000719 pollutant Toxicity 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Abstract
The utility model provides a waterproof and dustproof gas sampling device, which comprises: the device comprises an upper cover, a lower shell, a baffle, a sintered filter, an internal thread clamping sleeve joint and a filter assembly; the upper cover is connected with the lower shell to jointly form an outer layer protection shell, the sintering filter is arranged in the outer layer protection shell and is connected with the upper cover, and a filter assembly is arranged between the upper cover and the sintering filter; the lower shell is internally provided with a baffle at the position communicated with the outside, and the upper cover is provided with an internal thread cutting sleeve joint. According to the utility model, dust pollutants and liquid water vapor in the gas to be detected can be effectively filtered through three layers of filtering, so that the measurement accuracy of the gas monitoring equipment is improved, and the product performance is improved.
Description
Technical Field
The utility model relates to the field of gas monitoring devices, in particular to a waterproof and dustproof gas sampling device.
Background
In modern industrial safety production, toxic and harmful gas monitoring is an indispensable important part. The gas monitoring equipment that uses in the present market is installed in outdoor place generally, and outdoor service environment is complicated and abominable, when using sampling air pump extraction gas to be measured, can contain dust pollutant in the gas to be measured, still contain liquid moisture simultaneously, and dust pollutant and liquid moisture can cause the pollution to core detecting element to influence the measurement accuracy, appear in disorder alarm and false alarm condition even, seriously influence gas monitoring equipment's performance. Therefore, an outdoor gas monitoring device is in need of a waterproof and dustproof gas sampling device.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model aims to provide a waterproof and dustproof gas sampling device.
According to the utility model, a waterproof and dustproof gas sampling device comprises: the device comprises an upper cover, a lower shell, a baffle, a sintered filter, an internal thread clamping sleeve joint and a filter assembly;
The upper cover is connected with the lower shell to jointly form an outer layer protection shell, the sintering filter is arranged in the outer layer protection shell and is connected with the upper cover, and a filter assembly is arranged between the upper cover and the sintering filter;
The lower shell is internally provided with a baffle at the position communicated with the outside, and the upper cover is provided with an internal thread cutting sleeve joint.
Preferably, the filter assembly comprises: stainless steel filter screen and PTFE (polytetrafluoroethylene) filter membrane;
stainless steel filter screens are arranged on two sides of the PTFE filter membrane.
Preferably, a gasket is disposed between the filter assembly and the inner wall of the upper cover and forms a third chamber.
Preferably, the sintered filter has a hollow structure in which fine pores are distributed in a peripheral surface sintered body, a second chamber is formed inside the sintered filter, and a first chamber is formed between the sintered filter and the lower case.
Preferably, a second through hole is formed in the lower shell, and the baffle is mounted on the inner side of the position, where the second through hole is formed, of the lower shell;
The support column is arranged between the baffle plate and the lower shell, and the second through hole is communicated with the first chamber through an opening in the circumferential direction of the outer edge of the baffle plate.
Preferably, a first through hole is formed in the upper cover, a third through hole is formed in the inner wire clamping sleeve joint, and the first through hole, the third chamber and the second chamber inside the sintering filter are communicated.
Preferably, the upper cover is provided with a hollow structure of three layers of steps, and the three layers of steps are provided with an upper layer, a middle layer and a lower layer from small to large in diameter.
Preferably, a first external thread is arranged on the outer side of the upper layer, a second internal thread is arranged on the inner side of the middle layer, and a third internal thread is arranged on the inner side of the lower layer;
The inside of internal thread cutting ferrule joint one end set up first internal thread with first external screw thread threaded connection, the outside of sintering filter one end set up the second external screw thread with second internal screw thread threaded connection, the outside of inferior valve one end set up the third external screw thread with third internal screw thread threaded connection.
Preferably, the outer diameters of the PTFE filter membrane and the stainless steel filter screen are the same and smaller than the inner diameter of the middle layer of the upper cover.
Preferably, one end of the sampling tube is connected with the internal thread cutting sleeve joint, and the other end of the sampling tube is connected with the cutting sleeve rotary quick-connection joint.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model provides a waterproof and dustproof gas sampling device which can be used as a sampling structural member of gas monitoring equipment installed in an outdoor place, and dust pollutants and liquid water vapor in gas to be detected can be effectively filtered through three layers of filtering, so that the measurement accuracy of the gas monitoring equipment is improved, and the product performance is improved.
Drawings
Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:
FIG. 1 is a cross-sectional view of a gas sampling apparatus;
FIG. 2 is a schematic diagram of the filtration of gas through a gas sampling apparatus;
FIG. 3 is an exploded view of a gas sampling apparatus;
FIG. 4 is a schematic view of a gas sampling apparatus mounting a sampling tube;
The figure shows:
Detailed Description
The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.
Example 1
As shown in fig. 1 and 4, the present embodiment includes: the device comprises an upper cover 1, a lower shell 2, a baffle 3, a sintered filter 4, an internal thread clamping sleeve joint 5, a gasket 6, a stainless steel filter screen 7 and a PTFE filter membrane 8; the upper cover 1 is connected with the lower shell 2 to jointly form an outer protective shell, the sintering filter 4 is arranged in the outer protective shell and is connected with the upper cover 1, the PTFE filter membrane 8 and the stainless steel filter screen 7 are arranged between the upper cover 1 and the sintering filter 4, and the gasket 6 is arranged between the stainless steel filter screen 7 on one side and the upper cover 1. The lower shell 2 is internally provided with a baffle 3, a support column 10 is arranged between the baffle 3 and the lower shell 2, and an inner wire cutting sleeve joint 5 is arranged on the upper cover 1. The internal thread ferrule adapter 5 is connected to the sampling tube 100 and the ferrule-to-quick connector 200, and can be cooperatively installed on gas monitoring equipment through the sampling tube 100 and the ferrule-to-quick connector 200.
As shown in fig. 3, the upper cover 1 is provided as a hollow structure of three steps, which are provided with an upper layer, a middle layer and a lower layer from small to large in diameter. The outer side of the upper layer is provided with a first external thread 12, the inner side of the middle layer is provided with a second internal thread 13, and the inner side of the lower layer is provided with a third internal thread 14; a first internal thread 52 is arranged in one end of the internal thread cutting sleeve joint 5 and is in threaded connection with the first external thread 12; the outer side of one end of the sintering filter 4 is provided with a second external thread 42 which is in threaded connection with the second internal thread 13; the outer side of one end of the lower shell 2 is provided with a third external thread 23 in threaded connection with the third internal thread 14.
As shown in fig. 2, a third chamber 61 in the gasket 6 is provided with a first through hole 11 in the upper cover 1, a third through hole 51 is provided in the inner wire ferrule joint 5, and the first through hole 11, the third through hole 51, the third chamber 61 and a second chamber 41 in the sintered filter 4 are communicated.
The lower shell 2 is provided with a second through hole 21, and the baffle 3 is arranged on the inner side of the position of the lower shell 2 where the second through hole 21 is arranged; specifically, a second screw through hole 31 is formed in the baffle plate 3, a first screw through hole 24 is formed in the lower shell 2, one end of the support column 10 is connected with the baffle plate 3 through the countersunk screw 9 matched with the second screw through hole 31, and the other end of the support column is connected with the lower shell 2 through the countersunk screw 9 matched with the first screw through hole 24. And an opening is formed between the support column 10 and the support column 10 so that the second through hole 21 communicates with the inside of the lower case 2. The gas to be measured pumped by the sampling air pump enters through the second through hole 21 at the bottom of the lower shell 2, and is blocked by the baffle 3 on the front side of the air flow, and enters the first cavity 22 in the lower shell 2 along the circumferential opening of the outer edge of the baffle 3, and is filtered for the first layer at this time, so that pollutants and rainwater with larger size are filtered
The sintered filter 4 has a cylindrical hollow structure, and its peripheral surface is a sintered body 43, and the sintered body 43 is covered with fine pores. The interior of the sintered filter 4 forms a second chamber 41 and a first chamber 22 is formed between the sintered filter 4 and the lower housing 2. The gas to be measured enters the second chamber 41 from the fine micropores distributed on the peripheral surface of the sintered body 43, and is filtered by the second layer at this time, and dust particles can be filtered through the fine micropores.
The two sides of the PTFE filter membrane 8 are provided with stainless steel filter screens 7, and the outer diameters of the PTFE filter membrane 8 and the stainless steel filter screens 7 are the same and smaller than the inner diameter of the middle layer of the upper cover 1, so that the installation is convenient. The gasket 6 has a larger inner diameter so that the PTFE filter membrane 8 has a larger size of effective filtration area. The gas to be measured passes through a combination of 2 stainless steel filter screens 7 and PTFE filter membranes 8, and is filtered by a third layer at the moment, and water vapor is filtered through micron-sized waterproof vent holes on the PTFE filter membranes 8; finally, the gas to be measured sequentially enters the third chamber 61, the first through hole 11 and the second through hole 51.
Example 2
Example 2 is a preferred example of example 1.
As shown in fig. 1, the present embodiment includes: the filter comprises an upper cover 1, a lower shell 2, a baffle 3, a sintered filter 4, an internal thread clamping sleeve joint 5, a gasket 6, a stainless steel filter screen 7, a PTFE filter membrane 8, countersunk screws 9 and a support column 10.
The upper cover 1 and the lower shell 2 form an outer layer protection shell together through threaded connection, the baffle 3 is fixedly arranged at the bottom of the lower shell 2 through the countersunk head screw 9 and the supporting column 10, the sintering filter 4 is of a cylindrical hollow structure, the peripheral surface sintering body 43 of the sintering filter is full of micro holes, the internal thread cutting sleeve joint 5 is in threaded connection with the upper cover 1, the gasket 6 is made of PTFE materials, and the two stainless steel filter screens 7 are used for protecting the PTFE filter membrane 8 from being damaged. The outer diameters of the gasket 6, the stainless steel filter screen 7 and the PTFE filter membrane 8 are the same and slightly smaller than the inner diameter of the inner cavity of the middle layer of the upper cover 1, so that the installation is convenient. The gasket 6 has a larger inner diameter so that the PTFE filter membrane has a larger effective filtration area. The gas to be tested is subjected to multi-layer filtration, so that dust pollutants and liquid water gas are effectively filtered, and meanwhile, the maintenance is convenient and simple.
As shown in fig. 1 and 3, the installation method of the present embodiment specifically includes: the upper cover 1 is turned over to the upper layer, the gasket 6, the stainless steel filter screen 7, the PTFE filter membrane 8 and the stainless steel filter screen 7 are sequentially placed into the inner cavity of the middle layer of the upper cover 1, and the second external threads 42 of the sintered filter 4 are matched with the second internal threads 13 of the upper cover 1 until the sintered filter 4 presses the stainless steel filter screen 7 on the outermost layer. The baffle 3 is fixedly arranged at the bottom of the lower shell 2 through 4 countersunk screws 9 and 4 supporting columns 10. The first external thread 12 at the uppermost layer of the upper cover 1 is matched with the first internal thread 52 of the internal thread cutting sleeve joint 5, the third external thread 14 at the lowermost layer of the upper cover 1 is matched with the third internal thread 23 of the lower shell 2, and the upper cover, the lower shell and the internal thread cutting sleeve joint form an outer protective shell together through threaded connection.
As shown in fig. 2, the working process of the present embodiment is specifically: the gas to be detected which is pumped by the sampling air pump enters through the second through hole 21 at the bottom of the lower shell 2, and is blocked by the baffle plate 3 on the front side of the air flow, and enters the first cavity 22 along the peripheral direction of the baffle plate 3, and is filtered for filtering pollutants and rainwater with larger size at the moment; then the gas to be measured enters the second chamber 41 from tiny micropores distributed on the peripheral surface of the long cylindrical sintered body 43 of the sintered filter 4, and is filtered for the second layer at the moment, and dust particles are filtered through the tiny micropores; then the gas to be measured passes through a combination of 2 stainless steel filter screens 7 and PTFE filter membranes 8, and is filtered by a third layer at the moment, and water vapor is filtered through micron-sized waterproof vent holes on the PTFE filter membranes 8; finally, the gas to be measured sequentially enters the third chamber 61, the first through hole 11 and the second through hole 51.
As shown in fig. 4, the present embodiment further provides a combination structure for a sampling tube 100 for mounting to a gas monitoring apparatus, comprising: sampling tube 100 and ferrule-to-quick connector 200. In one embodiment, the sampling tube 100 is made of stainless steel, the top is in a curved shape, and the top is fixedly installed with the inner wire clamping sleeve joint 5 near one end of the curve, so that the second through hole 21 at the bottom of the lower shell 2 is ensured to be vertically downward, that is, the air inlet of the sampling head of the embodiment is downward. The other end of the sampling tube 100 is fixedly mounted with a ferrule rapid-insert connector 200, and the ferrule rapid-insert connector 200 can be matched and mounted on gas monitoring equipment.
The embodiment belongs to a filtering component and also is a dust pollutant and liquid water vapor accumulation component, so that periodic maintenance, cleaning and replacement are required, and cleaning and replacement periods can be reasonably arranged according to specific use environments. The specific operation sequence is as follows: the upper cover 1 is clamped by a tool, the lower shell 2 is detached, the baffle 3 is detached inside the lower shell 2, the sintered filter 4 is detached, and the stainless steel filter screen 7 and the PTFE filter membrane 8 are detached by forceps. The lower shell 2, the baffle plate 3, the sintering filter 4 and the stainless steel filter screen 7 are cleaned by clean water, and then a brand new PTFE filter membrane 8 is selected. And after the related parts are washed and dried, reinstalling the related parts according to the reverse order during disassembly, and finishing the periodic maintenance work.
In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the utility model and the features of the embodiments may be combined with each other arbitrarily without conflict.
Claims (10)
1. A waterproof and dustproof gas sampling device, comprising: the device comprises an upper cover (1), a lower shell (2), a baffle (3), a sintered filter (4), an internal thread cutting sleeve joint (5) and a filter assembly;
The upper cover (1) is connected with the lower shell (2) to jointly form an outer layer protection shell, the sintering filter (4) is arranged in the outer layer protection shell and is connected with the upper cover (1), and a filter assembly is arranged between the upper cover (1) and the sintering filter (4);
The inner wire cutting sleeve joint (5) is arranged on the upper cover (1).
2. The waterproof and dustproof gas sampling apparatus of claim 1, wherein the filter assembly comprises: a stainless steel filter screen (7) and a PTFE filter membrane (8);
Stainless steel filter screens (7) are arranged on two sides of the PTFE filter membrane (8).
3. The waterproof and dustproof gas sampling apparatus according to claim 1, wherein: a gasket (6) is arranged between the filter assembly and the inner wall of the upper cover (1) and forms a third chamber (61).
4. The waterproof and dustproof gas sampling apparatus according to claim 1, wherein: the sintered filter (4) has a hollow structure in which fine pores are distributed on a peripheral surface sintered body (43), a second chamber (41) is formed inside the sintered filter (4), and a first chamber (22) is formed between the sintered filter (4) and the lower case (2).
5. The waterproof and dustproof gas sampling apparatus according to claim 4, wherein: the lower shell (2) is provided with a second through hole (21), and the baffle (3) is arranged on the inner side of the position, where the second through hole (21) is arranged, of the lower shell (2);
The support column (10) is arranged between the baffle plate (3) and the lower shell (2), and the second through hole (21) is communicated with the first chamber (22) through an opening in the circumferential direction of the outer edge of the baffle plate (3).
6. A waterproof and dustproof gas sampling apparatus according to claim 3, wherein: the upper cover (1) is internally provided with a first through hole (11), the inner wire cutting sleeve joint (5) is internally provided with a third through hole (51), and the first through hole (11), the third through hole (51), the third cavity (61) and the second cavity (41) inside the sintering filter (4) are communicated.
7. The waterproof and dustproof gas sampling apparatus according to claim 1, wherein: the upper cover (1) is of a hollow structure with three layers of steps, and the three layers of steps are provided with an upper layer, a middle layer and a lower layer from small to large in diameter.
8. The waterproof and dustproof gas sampling apparatus according to claim 7, wherein: the outer side of the upper layer is provided with a first external thread (12), the inner side of the middle layer is provided with a second internal thread (13), and the inner side of the lower layer is provided with a third internal thread (14);
A first internal thread (52) is arranged in one end of the internal thread cutting sleeve joint (5) and is in threaded connection with the first external thread (12);
a second external thread (42) is arranged on the outer side of one end of the sintering filter (4) and is in threaded connection with the second internal thread (13);
And a third external thread (23) is arranged on the outer side of one end of the lower shell (2) and is in threaded connection with the third internal thread (14).
9. The waterproof and dustproof gas sampling apparatus according to claim 2, wherein: the outer diameters of the PTFE filter membrane (8) and the stainless steel filter screen (7) are the same and smaller than the inner diameter of the middle layer of the upper cover (1).
10. The waterproof and dustproof gas sampling apparatus according to claim 1, wherein: one end of the sampling tube (100) is connected with the internal thread cutting sleeve joint (5), and the other end is connected with the cutting sleeve fast-rotating plug joint (200).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322381597.6U CN220872169U (en) | 2023-09-01 | 2023-09-01 | Waterproof dustproof gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322381597.6U CN220872169U (en) | 2023-09-01 | 2023-09-01 | Waterproof dustproof gas sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872169U true CN220872169U (en) | 2024-04-30 |
Family
ID=90809055
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322381597.6U Active CN220872169U (en) | 2023-09-01 | 2023-09-01 | Waterproof dustproof gas sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872169U (en) |
-
2023
- 2023-09-01 CN CN202322381597.6U patent/CN220872169U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |