CN220558885U - Sampling and filtering equipment for benzene gas alarm - Google Patents
Sampling and filtering equipment for benzene gas alarm Download PDFInfo
- Publication number
- CN220558885U CN220558885U CN202321910856.3U CN202321910856U CN220558885U CN 220558885 U CN220558885 U CN 220558885U CN 202321910856 U CN202321910856 U CN 202321910856U CN 220558885 U CN220558885 U CN 220558885U
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- Prior art keywords
- equipment
- filtering
- air
- gas alarm
- benzene gas
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 238000001914 filtration Methods 0.000 title claims abstract description 57
- 238000005070 sampling Methods 0.000 title claims abstract description 18
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000002808 molecular sieve Substances 0.000 claims abstract description 26
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 15
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 11
- 239000002245 particle Substances 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 11
- 241001233242 Lontra Species 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 9
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 239000013618 particulate matter Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 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
- 239000000428 dust Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model relates to the technical field of gas filtration, in particular to sampling and filtering equipment for a benzene gas alarm, which comprises an equipment shell, wherein the lower end of the equipment shell is fixedly connected with an air inlet circular pipe, the upper end of the equipment shell is detachably provided with a plugging top cover, the upper end of the plugging top cover is provided with an air outlet circular pipe, an air filtering mechanism for filtering out particles in air is arranged in the equipment shell, the air filtering mechanism comprises a filtering cylinder which is detachably arranged in the equipment shell, the lower end of the filtering cylinder is movably provided with a metal filter screen, and the outer part of the metal filter screen is sleeved with a lower sealing ring. According to the utility model, the round baffle, the molecular sieve and the vertical pull rod are arranged to replace a plurality of layers of non-woven fabrics and sealing rings in the conventional filtering equipment, so that the equipment is not required to be frequently disassembled and assembled and the filtering membrane is not required to be replaced, the maintenance cost and the repeated failure rate of the equipment are reduced, the labor capacity of workers is reduced, and the service life of the filtering equipment is prolonged.
Description
Technical Field
The utility model relates to the technical field of gas filtration, in particular to sampling and filtering equipment for a benzene gas alarm.
Background
The benzene gas alarm is a pumping type sampling instrument, so as to avoid false alarm of the alarm caused by adverse effect of dust particles and water vapor in the air on the detection process, and people usually adopt a filter to filter the air first and then detect the air.
The filtering equipment for the benzene gas alarm in the prior art is usually used for filtering air by utilizing a plurality of layers of filtering membranes, however, the membranes are easy to pollute when being used, the filtering equipment is required to be disassembled and replaced every certain time, and the middle part material for placing the membranes is plastic and is easy to harden and become brittle after being used for a long time, so that plastic parts are often broken due to friction in the disassembly and assembly process, the maintenance cost and the repeated failure rate of the filtering equipment are high, and additional workload is added to staff.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides sampling and filtering equipment for a benzene gas alarm, solves the technical problems that the filtering equipment in the prior art is frequently required to replace a diaphragm, has high maintenance cost and high repeated failure rate, and has the advantages of being capable of effectively maintaining the cost and the repeated failure rate of the equipment, reducing the labor capacity of staff to a certain extent and the like.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a sampling filtration equipment for benzene gas alarm, including the equipment casing, the lower extreme fixedly connected with of equipment casing advances air pipe, the upper end demountable installation of equipment casing has the shutoff top cap, the upper end of shutoff top cap is provided with the exhaust pipe, the inside of equipment casing is equipped with the air filter mechanism that is arranged in filtering particulate matter in the air, the staff will advance air pipe and the sampling mouth of benzene gas alarm and be connected the back, the inside that can enter into the equipment casing through advancing air pipe by the air in the region, next, air filter mechanism can absorb the filtration to particulate matter in the air and steam, the inside that can enter into benzene gas alarm through the exhaust pipe after the filtration is accomplished, air filter mechanism includes the filter cylinder of demountable installation in the equipment casing, the lower extreme movable mounting of filter cylinder has metal filter screen, the outside cover of metal filter screen is equipped with down the sealing washer, the upper end demountable installation of filter cylinder has ventilative otter board, the outside cover of ventilative otter board is equipped with the sealing washer, the inside demountable installation non-woven fabrics filter cotton, the inside of filter cylinder is provided with molecular sieve, after the inside that the pipe entered into the equipment casing through advancing air pipe, can enter into the inside of equipment casing through the air pipe, can enter into the inside of benzene gas alarm through the exhaust pipe into the inside of the benzene gas alarm, can enter into the inside of benzene gas alarm through the filter screen through the exhaust pipe in proper order, and through the effect of filtering the filter net.
Preferably, the inside movable mounting of filter cylinder has the circular baffle that is used for placing the molecular sieve, and oval logical groove has been seted up on the surface of circular baffle, and the upper end fixedly connected with vertical pull rod of circular baffle, when needs change the molecular sieve, only need upwards pull vertical pull rod, alright take out the inside of filter cylinder with the molecular sieve fast.
Preferably, an annular boss for placing the circular baffle is arranged on the inner side wall of the filtering cylinder, so that the circular baffle is prevented from being directly contacted with the metal filter screen.
Preferably, the lower sealing ring and the upper sealing ring are tightly attached to the inner wall of the filtering cylinder, so that air can enter the filtering cylinder completely after entering the inside of the equipment shell.
Preferably, the height of the upper end of the vertical pull rod is lower than that of the lower end of the breathable net plate, and the vertical pull rod can be pulled out upwards only after the breathable net plate is taken down by a worker.
Preferably, the molecular sieve has a volume larger than that of the elliptical through groove, and the elliptical through groove only allows gas to pass through, so that particles in the molecular sieve are prevented from falling downwards through the elliptical through groove.
By means of the technical scheme, the utility model provides sampling and filtering equipment for a benzene gas alarm instrument, which has the following beneficial effects:
1. according to the utility model, the round baffle, the molecular sieve and the vertical pull rod are arranged to replace a plurality of layers of non-woven fabrics and sealing rings in the conventional filtering equipment, so that the equipment is not required to be frequently disassembled and assembled and the filtering membrane is not required to be replaced, the maintenance cost and the repeated failure rate of the equipment are reduced, the labor capacity of workers is reduced, and the service life of the filtering equipment is prolonged.
2. According to the utility model, the metal filter screen, the molecular sieve and the non-woven fabric filter cotton are arranged, so that the particulate matters and the water vapor in the air can be automatically removed before the gas detection, the accuracy of the benzene gas detection result can be effectively improved, the damage of the particulate matters and the water vapor in the air to the precise devices in the benzene gas alarm instrument can be avoided, and the service life of the benzene gas alarm instrument can be prolonged to a certain extent.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:
FIG. 1 is a front view of the overall structure of the present utility model;
FIG. 2 is a schematic diagram of a portion of the structure of the present utility model;
FIG. 3 is a schematic bottom view of a filter cylinder structure according to the present utility model;
FIG. 4 is a top view of the filter cylinder structure of the present utility model;
FIG. 5 is a cross-sectional view of a filter plate cylinder structure of the present utility model;
fig. 6 is a schematic view of a circular baffle structure in the present utility model.
In the figure: 1. an equipment housing; 2. an air inlet circular tube; 3. plugging the top cover; 4. an exhaust round tube; 5. an air filtration mechanism; 501. a filter cylinder; 502. a lower sealing ring; 503. an upper sealing ring; 504. a metal filter screen; 505. a breathable mesh plate; 506. non-woven fabric filter cotton; 507. a circular baffle; 508. a molecular sieve; 509. elliptical through grooves; 510. a vertical pull rod; 511. an annular boss.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
According to fig. 1-6, a sampling filtration equipment for benzene gas alarm, including equipment casing 1, equipment casing 1's lower extreme fixedly connected with pipe 2 that admits air, equipment casing 1's upper end demountable installation has shutoff top cap 3, shutoff top cap 3's upper end is provided with exhaust pipe 4, equipment casing 1's inside is equipped with the air filter mechanism 5 that is arranged in filtering particulate matter in the air, the staff will exhaust pipe 4 with the sampling port of benzene gas alarm be connected the back, the air in the region can enter into equipment casing 1's inside through pipe 2 that admits air, next, air filter mechanism 5 can absorb and filter particulate matter and steam in the air, the inside that the filtration is accomplished the air can enter into benzene gas alarm through pipe 4.
Specifically, the air filtering mechanism 5 includes the filter cylinder 501 of demountable installation in equipment housing 1, filter cylinder 501's lower extreme movable mounting has metal filter screen 504, the outside cover of metal filter screen 504 is equipped with down sealing washer 502, filter cylinder 501's upper end demountable installation has ventilative otter board 505, ventilative otter board 505's outside cover is equipped with down sealing washer 503, down sealing washer 502, go up sealing washer 503 and filter cylinder 501's inner wall closely laminating, thereby guarantee that air gets into equipment housing 1's inside after, can all enter into filter cylinder 501's inside, ventilative otter board 505's inboard demountable installation has non-woven fabrics filter cotton 506, filter cylinder 501's inside is provided with molecular sieve 508, be provided with the annular boss 511 that is used for placing circular baffle 507 on filter cylinder 501's the inside wall, thereby avoid circular baffle 507 direct contact with metal filter screen 504, after air passes through the filter effect of metal filter screen 504 in proper order, molecular sieve 508 and non-woven fabrics filter cotton 506, the exhaust pipe 4 discharges at last.
Specifically, the inside movable mounting of filter cylinder 501 has the circular baffle 507 that is used for placing molecular sieve 508, elliptical through groove 509 has been seted up to the surface of circular baffle 507, molecular sieve 508's volume is greater than elliptical through groove 509, elliptical through groove 509 only passes through with the gas, thereby avoid the inside granule of molecular sieve 508 to drop downwards through elliptical through groove 509, the upper end fixedly connected with vertical pull rod 510 of circular baffle 507, the height of vertical pull rod 510 upper end is less than the height of ventilative otter board 505 lower extreme, only after the staff takes off ventilative otter board 505, can upwards pull out vertical pull rod 510, when needs change molecular sieve 508, only need upwards pull vertical pull rod 510, alright take out molecular sieve 508 from filter cylinder 501's inside fast.
In this embodiment, during the use, the staff can be with the sampling mouth connection of exhaust pipe 4 and benzene gas alarm, then switch on the power of benzene gas alarm, and then, the air in the measured environment can enter into the inside of equipment housing 1 through the pipe 2 that admits air under the pumping effect of benzene gas alarm.
After the air enters the equipment shell 1, firstly, the metal filter screen 504 filters the air for the first time to remove large particle impurities in the air, then the molecular sieve 508 filters the air for the second time to remove water vapor in the air, finally, the non-woven fabric filter cotton 506 filters the air for the third time to remove small particle impurities in the air, and after the filtering is completed, the air enters the benzene gas alarm through the exhaust circular tube 4 to be detected.
After a certain period of use, the worker will open the plugging cap 3, then take out the upper sealing ring 503 and the ventilation screen 505 located at the upper end of the equipment housing 1, and then quickly replace the non-woven fabric filter cotton 506.
When the molecular sieve 508 needs to be replaced for a long time, a worker firstly opens the plugging top cover 3 and then pulls the vertical pull rod 510 upwards, the molecular sieve 508 moves upwards synchronously when the vertical pull rod 510 moves, and then the worker can quickly replace the molecular sieve 508.
In the embodiment, the circular baffle 507, the molecular sieve 508 and the vertical pull rod 510 are arranged to replace a plurality of layers of non-woven fabrics and sealing rings in the existing filtering equipment, so that the equipment is not required to be frequently disassembled and assembled and the filtering membrane is not required to be replaced, the maintenance cost and the repeated failure rate of the equipment are reduced, the labor capacity of workers is reduced, and the service life of the filtering equipment is prolonged; moreover, this embodiment can be through setting up metal filter screen 504, molecular sieve 508 and non-woven fabrics filter cotton 506, can get rid of particulate matter and steam in the air before the gas detection automatically, can effectively improve the accuracy of benzene gas testing result, can avoid particulate matter and steam in the air to cause the damage to the inside accurate device of benzene gas alarm again, can prolong the life of benzene gas alarm to a certain extent.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A sampling filtration equipment for benzene gas alarm, includes equipment casing (1), and the lower extreme fixedly connected with pipe (2) that admits air of equipment casing (1), the upper end demountable installation of equipment casing (1) has shutoff top cap (3), its characterized in that: an exhaust circular pipe (4) is arranged at the upper end of the plugging top cover (3), and an air filtering mechanism (5) for filtering out particles in air is arranged in the equipment shell (1);
the utility model provides an air filtration mechanism (5) is including detachably mounting filtration drum (501) in equipment housing (1), the lower extreme movable mounting of filtration drum (501) has metal filter screen (504), the outside cover of metal filter screen (504) is equipped with down sealing washer (502), the upper end demountable installation of filtration drum (501) has ventilative otter board (505), the outside cover of ventilative otter board (505) is equipped with sealing washer (503), the inboard demountable installation of ventilative otter board (505) has non-woven fabrics to filter cotton (506), the inside of filtration drum (501) is provided with molecular sieve (508).
2. A sampling filtration device for a benzene gas alarm as claimed in claim 1, wherein: the inside movable mounting of filter drum (501) has circular baffle (507) that are used for placing molecular sieve (508), and elliptical through groove (509) have been seted up on the surface of circular baffle (507), and the upper end fixedly connected with vertical pull rod (510) of circular baffle (507).
3. A sampling filtration device for a benzene gas alarm as claimed in claim 2, wherein: an annular boss (511) for placing a circular baffle (507) is arranged on the inner side wall of the filtering cylinder (501).
4. A sampling filtration device for a benzene gas alarm as claimed in claim 1, wherein: the lower sealing ring (502) and the upper sealing ring (503) are tightly attached to the inner wall of the filtering cylinder (501).
5. A sampling filtration device for a benzene gas alarm as claimed in claim 2, wherein: the height of the upper end of the vertical pull rod (510) is lower than that of the lower end of the ventilation screen plate (505).
6. A sampling filtration device for a benzene gas alarm as claimed in claim 2, wherein: the molecular sieve (508) has a volume larger than that of the elliptical through groove (509), and the elliptical through groove (509) only allows gas to pass through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321910856.3U CN220558885U (en) | 2023-07-20 | 2023-07-20 | Sampling and filtering equipment for benzene gas alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321910856.3U CN220558885U (en) | 2023-07-20 | 2023-07-20 | Sampling and filtering equipment for benzene gas alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220558885U true CN220558885U (en) | 2024-03-08 |
Family
ID=90092881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321910856.3U Active CN220558885U (en) | 2023-07-20 | 2023-07-20 | Sampling and filtering equipment for benzene gas alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220558885U (en) |
-
2023
- 2023-07-20 CN CN202321910856.3U patent/CN220558885U/en active Active
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| GR01 | Patent grant |