CN204346782U - A kind of negative pressure filter with self-cleaning function - Google Patents
A kind of negative pressure filter with self-cleaning function Download PDFInfo
- Publication number
- CN204346782U CN204346782U CN201520016027.XU CN201520016027U CN204346782U CN 204346782 U CN204346782 U CN 204346782U CN 201520016027 U CN201520016027 U CN 201520016027U CN 204346782 U CN204346782 U CN 204346782U
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- negative pressure
- filter body
- filter
- self
- gas
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- 238000004140 cleaning Methods 0.000 title claims abstract description 22
- 239000010865 sewage Substances 0.000 claims abstract description 24
- 238000005070 sampling Methods 0.000 claims abstract description 12
- 239000000428 dust Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract description 4
- 239000013049 sediment Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model proposes a kind of negative pressure filter with self-cleaning function, to extend the mission life of filtrator and to remove maintenance work manually from.This negative pressure filter with self-cleaning function comprises the filter body of hollow, described filter body is connected with sampling pipe and gas outlet, filter core is provided with between the inherent sampling pipe of filter body and gas outlet, key is that described filter body is also provided with sewage draining exit, and described sewage draining exit is connected with a negative pressure device.Produce negative pressure in negative pressure device, utilize negative pressure by the dust in filtrator sample gas or steam or ponding sucking-off, thus can greatly extend the serviceable life of filtrator, and do not need the sediment in manual cleaning and filtering body.Above-mentioned filtrator, can impurity in Self-discharged filter body by connecting negative pressure device, clearing up, not only saving manpower, the overall impermeability of filter body can also be kept good, have good practicality without the need to manually taking filter body apart.
Description
Technical field
The utility model belongs to gas on-line sampling detection technique field, is related specifically to a kind of negative pressure filter with self-cleaning function.
Background technology
In the production run of the industries such as oil, chemical industry, boats and ships, rock gas, Coal Chemical Industry and pharmacy; often can use gas sampling assembly extracting gases from process units; supplied gas detector determination and analysis, whether the gas that process units for confirmation produces in production run is in controlled range.The filtrator of gas sampling assembly is in the past all need regularly to safeguard manually and cleaning usually, add human cost, simultaneously dismounting and mounting filter cup or filter core can not ensure the overall impermeability of later product well completely repeatedly, and Leakage Gas may cause security incident.
Utility model content
The purpose of this utility model proposes a kind of negative pressure filter with self-cleaning function, to extend the mission life of filtrator and to remove maintenance work manually from.
The negative pressure filter with self-cleaning function of the present utility model comprises the filter body of hollow, described filter body is connected with sampling pipe and gas outlet, filter core is provided with between the inherent sampling pipe of filter body and gas outlet, key is that described filter body is also provided with sewage draining exit, and described sewage draining exit is connected with a negative pressure device.
Produce negative pressure in negative pressure device, utilize negative pressure by the dust in filtrator sample gas or steam or ponding sucking-off, thus can greatly extend the serviceable life of filtrator, and do not need the sediment in manual cleaning and filtering body.
Further, described negative pressure device comprises a housing, described housing has air intake opening, exhausr port and air entry, described air intake opening is communicated with by gas passage with exhausr port, the area of section of described gas passage is increased to exhausr port direction gradually by air intake opening, and described air entry communicates with described gas passage; Described sewage draining exit communicates with air entry.
Pass into after a certain amount of cleaning compressed air source or compressed nitrogen source of the gas or sample gas detects gas tail gas from the air intake opening of negative pressure device, because the cross section of gas passage expands gradually, therefore the gas of gas coming through passage can produce certain negative-pressure sucking at the air entry of negative pressure device, thus can the impurity such as the sample gas sediment in filtrator cup or sewage are pumped in negative pressure device, and discharge from the exhausr port of negative pressure device.Such negative pressure self-cleaning filter is without the need to adopting the extra energy, and the air-flow that only needing to utilize compressed air source or compressed nitrogen source of the gas or sample gas to detect tail gas provides gets final product work, and one-piece construction can be done very small and exquisite, durable.The flow regulating negative pressure device air intake opening gas to enter and pressure, just can regulate the size of the sewage draining exit pollution discharge capability of corresponding negative pressure filter.
Further, described sewage draining exit is positioned at the bottom of filter body, and described gas outlet is positioned at the top of filter body.By above-mentioned structural design, can make filter core between gas outlet and sewage draining exit, and sewage draining exit is positioned at the below of filter core, like this due to the Action of Gravity Field of self, the suspended materials such as the dust in sample gas can not adhere to and be deposited on filter core, but the bottom of filter body can be deposited on, namely sewage draining exit and near, be convenient to discharge.
Further, described gas outlet is connected by the air intake opening of the pipeline with negative pressure device with retaining valve, can directly utilize a part of sample gas to produce negative pressure like this, and retaining valve can be avoided gas backflow and affect the detection of sample gas.
The negative pressure filter with self-cleaning function of the present utility model is passed through to connect negative pressure device, can impurity in Self-discharged filter body, clear up without the need to manually taking filter body apart, not only save manpower, the overall impermeability of filter body can also be kept good, there is good practicality.
Accompanying drawing explanation
Fig. 1 is the structural representation with the negative pressure filter of self-cleaning function of embodiment 1.
Fig. 2 is the structural representation with the negative pressure filter of self-cleaning function of embodiment 2.
Accompanying drawing indicates: 1, filter body; 2, sampling pipe; 3, gas outlet; 4, sewage draining exit; 5, filter core; 6, negative pressure device; 7, air intake opening; 8, exhausr port; 9, air entry; 10, gas passage; 11, pipeline; 12, retaining valve.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect and principle of work etc. of embodiment of the present utility model as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
Embodiment 1:
As shown in Figure 1, the negative pressure filter with self-cleaning function of the present embodiment comprises the filter body 1 of hollow, the sidewall of described filter body 1 is connected with sampling pipe 2, top is provided with gas outlet 3, bottom is provided with sewage draining exit 4, be provided with filter core 5 between the inherent sampling pipe 2 of filter body 1 and gas outlet 3, described sewage draining exit 4 is connected with a negative pressure device 6.Filter core 5 is between gas outlet 3 and sewage draining exit 4, and sewage draining exit 4 is positioned at the below of filter core 5, like this due to the Action of Gravity Field of self, the suspended materials such as the dust in sample gas can not adhere to and be deposited on filter core 5, but the bottom of filter body 1 can be deposited on, namely sewage draining exit 4 and near, be convenient to discharge.
Above-mentioned negative pressure device 6 comprises a housing, described housing has air intake opening 7, exhausr port 8 and air entry 9, described air intake opening 7 is communicated with by gas passage 10 with exhausr port 8, the area of section of described gas passage 10 is increased to exhausr port 8 direction gradually by air intake opening 7, and described air entry 9 communicates with described gas passage 10; Described sewage draining exit 4 communicates with air entry 9.
Pass into after a certain amount of cleaning compressed air source or compressed nitrogen source of the gas or sample gas detects gas tail gas from the air intake opening 7 of negative pressure device 6, because the cross section of gas passage 10 expands gradually, therefore the gas of gas coming through path 10 can produce certain negative-pressure sucking at the air entry 9 of negative pressure device 6, thus can the impurity such as the sample gas sediment in filtrator cup or sewage are pumped in negative pressure device 6, and discharge from the exhausr port 8 of negative pressure device 6.Such negative pressure self-cleaning filter is without the need to adopting the extra energy, and the air-flow that only needing to utilize compressed air source or compressed nitrogen source of the gas or sample gas to detect tail gas provides gets final product work, and one-piece construction can be done very small and exquisite, durable.The flow regulating negative pressure device 6 air intake opening 7 gas to enter and pressure, just can regulate the size of sewage draining exit 4 pollution discharge capability of corresponding negative pressure filter.
Embodiment 2:
As shown in Figure 2, with the present embodiment 1 unlike, in the present embodiment, gas outlet 3 is connected by the air intake opening 7 of the pipeline 11 with negative pressure device with retaining valve 12, can directly utilize a part of sample gas to produce negative pressure like this, and retaining valve 12 can be avoided gas backflow and affect the detection of sample gas.Certainly, gas outlet 3 is also provided with the pipeline by sample gas pick-up unit, repeats no more herein.
Claims (4)
1. one kind has the negative pressure filter of self-cleaning function, comprise the filter body of hollow, described filter body is connected with sampling pipe and gas outlet, filter core is provided with between the inherent sampling pipe of filter body and gas outlet, it is characterized in that described filter body is also provided with sewage draining exit, described sewage draining exit is connected with a negative pressure device.
2. the negative pressure filter with self-cleaning function according to claim 1, it is characterized in that described negative pressure device comprises a housing, described housing has air intake opening, exhausr port and air entry, described air intake opening is communicated with by gas passage with exhausr port, the area of section of described gas passage is increased to exhausr port direction gradually by air intake opening, and described air entry communicates with described gas passage; Described sewage draining exit communicates with air entry.
3. the negative pressure filter with self-cleaning function according to claim 1 and 2, it is characterized in that described sewage draining exit is positioned at the bottom of filter body, described gas outlet is positioned at the top of filter body.
4. the negative pressure filter with self-cleaning function according to claim 1 and 2, is characterized in that described gas outlet is connected by the air intake opening of the pipeline with negative pressure device with retaining valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016027.XU CN204346782U (en) | 2015-01-12 | 2015-01-12 | A kind of negative pressure filter with self-cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016027.XU CN204346782U (en) | 2015-01-12 | 2015-01-12 | A kind of negative pressure filter with self-cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204346782U true CN204346782U (en) | 2015-05-20 |
Family
ID=53230043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520016027.XU Expired - Fee Related CN204346782U (en) | 2015-01-12 | 2015-01-12 | A kind of negative pressure filter with self-cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204346782U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547768A (en) * | 2016-01-04 | 2016-05-04 | 梅思安(中国)安全设备有限公司 | Sampling probe with self-cleaning function |
| CN108160243A (en) * | 2017-12-26 | 2018-06-15 | 何玉静 | A kind of dust absorbing device for construction waste pulverizer |
-
2015
- 2015-01-12 CN CN201520016027.XU patent/CN204346782U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547768A (en) * | 2016-01-04 | 2016-05-04 | 梅思安(中国)安全设备有限公司 | Sampling probe with self-cleaning function |
| CN105547768B (en) * | 2016-01-04 | 2018-03-16 | 梅思安(中国)安全设备有限公司 | sampling probe with self-cleaning function |
| CN108160243A (en) * | 2017-12-26 | 2018-06-15 | 何玉静 | A kind of dust absorbing device for construction waste pulverizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20190112 |