CN202387326U - Internal gas filter device and external gas filter device as well as gas detection device - Google Patents
Internal gas filter device and external gas filter device as well as gas detection device Download PDFInfo
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- CN202387326U CN202387326U CN 201120522203 CN201120522203U CN202387326U CN 202387326 U CN202387326 U CN 202387326U CN 201120522203 CN201120522203 CN 201120522203 CN 201120522203 U CN201120522203 U CN 201120522203U CN 202387326 U CN202387326 U CN 202387326U
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- gas
- aspiration pump
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- filtering device
- layer barrel
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Abstract
The utility model provides an internal gas filter device and an external gas filter device as well as a gas detection device. The internal gas filter device comprises a double-layer cylinder body, a cylinder cover, an air suction hole arranged on the cylinder cover and filter paper, air holes are densely arranged on the inner and outer layer cylinder walls of the double-layer cylinder body, and the filter paper is arranged between the inner and outer layer cylinder walls; the external gas filter device comprises an outer cylinder and the internal gas filter device, the double-layer cylinder body is sleeved in the outer cylinder, a cylinder port of the outer cylinder is connected with the edge of the cylinder cover in a sealing way, and an air inlet hole is arranged in the bottom of the outer cylinder; the gas detection device comprises a gas detector and a detection chamber, an air pump, a cut-off valve, a gas drying device and an air filter device which are sequentially communicated, and the gas detector is arranged in the detection chamber; and the gas drying device is the internal gas filter device or the external gas filter device. The gas filter devices have the advantages of simple structure, good filter effect, convenient in use and strong practicability, and the gas detection device has the advantages of accurate detection result and long service life.
Description
Technical field
The utility model relates to a kind of gas detection equipment, specifically, has related to a kind of inside and outside gas-filtering device and gas-detecting device put.
Background technology
After city domestic sewage gets into septic tank, under field conditions (factors), after bacterium anaerobic fermentation, decomposition, sedimentation, flow into urban sewage pipe, finally import sewage treatment plant and handle; Septic tank can produce a large amount of pernicious gases in the process of changing excrement, wherein Main Ingredients and Appearance is a fuel gas methane, also has a small amount of hydrogen sulfide, ammonia etc., total gas ingredients more complicated; When fuel gas gathers manyly more more, when reaching LEL, run into when temperature is too high in naked light or the pond, will set off an explosion; At present, have the public reported that a lot of septic tanks blasts are hurted sb.'s feelings.
Water, electricity, natural gas etc. are transported to huge numbers of families through underground pipe network, have guaranteed the ordinary production operation of enterprise and resident's normal life; Underground pipe network, crisscross, wrong vertical complicated, owing to the reason such as not smooth of ventilating in the pipe network, be easy to generate and gather some harmful poisonous or fuel gas, when work such as in pipe network, overhauling under the workman, the poisoning casualty accident very easily takes place; If the fuel gas concentration of accumulated is too high, reach LEL, meet the naked light accident of very easily blasting.
Based on the protection to personal safety, at present, a lot of manufacturer production have been developed the gas detecting instrument that is specifically designed to monitoring septic tank or underground pipe network fuel gas; When gas concentration is too high in detecting septic tank or underground pipe network; To start equipment such as blower fan, in septic tank, blow, or in the septic tank exhausting outward; To reduce its fuel gas content, reach the purpose of eliminating hidden peril of explosion; This type gas detecting instrument is installed to the scene, after coming into operation, and some problems below existing:
The air that septic tank is interior or underground pipe network is interior is general more moistening, messy, also has the fine particle of some thickness to mix wherein; Detection instrument is extracted the gas in the septic tank or in the underground pipe network out with pump, detects if directly be sent to the sensor surface of detection instrument, behind the use certain hour; The metallurgical powder net surface of sensor surface can be stuck with paste by dope; Cause the serious variation of its gas permeability, even not ventilative, the gas that draws up only permeates into sub-fraction or infiltration is not entered; The testing result of detector just can not correctly reflect in the septic tank or the fuel gas content in the pipeline, and gas detector has been brought into play not practical function.
In order to address the above problem, the gas detector of at present a lot of producers has all added filter, that is: when drawing up gas come with pump, filter earlier, sends into detector to gas again and detects; But because its filter is fairly simple; Be not sufficient to address the above problem, cause after its product work a period of time, the metallurgical powder net still can be blocked; Increase the maintenance cost and the frequency of maintenance of product greatly, caused harmful effect also for the user of gas detector.
In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The purpose of the utility model is the deficiency to prior art; Thereby a kind of simple in structure, good filtration effect is provided, has been suitable for methane-generating pit or the inner built-in gas-filtering device that uses of underground pipe network; Also provide a kind of easy to use, practical, be suitable for the outside external gas-filtering device that uses of methane-generating pit or underground pipe network, provide also that a kind of testing result is accurate, functional reliability is high, long service life, gas-detecting device that maintenance workload is little.
To achieve these goals; The technical scheme that the utility model adopted is: a kind of built-in gas-filtering device; It comprises that the airtight double-layer barrel of lower end nozzle, sealing are arranged on the cover of said double-layer barrel upper end nozzle, are arranged on aspirating hole and filter paper on the said cover; Wherein, be densely covered with air-vent respectively on the internal layer barrel of said double-layer barrel and the outer barrel, said filter paper is arranged between the internal layer barrel and outer barrel of said double-layer barrel.
Based on above-mentioned, said filter paper is between internal layer barrel and the outer barrel that rugosity is evenly distributed on said double-layer barrel and the internal layer barrel of said double-layer barrel and outer barrel is separated.
Based on above-mentioned, the upper end nozzle of said double-layer barrel is connected through flangeseal with said cover.
A kind of external gas-filtering device, it comprises urceolus and aforesaid built-in gas-filtering device, and wherein, said double-layer barrel is sleeved in the said urceolus, and said urceolus nozzle and said cover edge are tightly connected, and are provided with air admission hole at the bottom of the said urceolus tube.
A kind of gas-detecting device; It comprises gas detecting instrument, sensing chamber, aspiration pump, non-return valve, gas drier and gas-filtering device; Wherein, The aspirating hole of said gas-filtering device is communicated with the air inlet of said gas drier, and the gas outlet of said gas drier is communicated with the import of said non-return valve, and the outlet of said non-return valve is communicated with the air inlet of said aspiration pump; The gas outlet of said aspiration pump is communicated with the air inlet of said sensing chamber, and said gas detecting instrument is installed in the said sensing chamber; Said gas drier is aforesaid built-in gas-filtering device.
A kind of gas-detecting device; It comprises gas detecting instrument, sensing chamber, aspiration pump, non-return valve, gas drier and gas-filtering device; Wherein, The aspirating hole of said gas-filtering device is communicated with the air inlet of said gas drier, and the gas outlet of said gas drier is communicated with the import of said non-return valve, and the outlet of said non-return valve is communicated with the air inlet of said aspiration pump; The gas outlet of said aspiration pump is communicated with the air inlet of said sensing chamber, and said gas detecting instrument is installed in the said sensing chamber; Said gas drier is aforesaid external gas-filtering device.
Based on above-mentioned; Said gas detecting instrument comprises microcontroller circuit and Detection Circuit that is connected said microcontroller circuit respectively and aspiration pump starting or stopping control circuit; Wherein, said aspiration pump starting or stopping control circuit connects said aspiration pump so that said microcontroller circuit is controlled said aspiration pump start and stop.
The relative prior art of the utility model has substantive distinguishing features and progress; Specifically; This gas-filtering device can effectively purify detected gas, behind the impurity such as the dust in the filtering detected gas, thick substances, again detected gas is sent into sensor surface to detect; The certainty of measurement and the degree of accuracy of gas-detecting device have been improved greatly; Prolonged the service life of sensor simultaneously, be beneficial to the sensor continuous operation, it has simple in structure, good filtration effect, easy to use, practical advantage; This gas-detecting device has that testing result is accurate, functional reliability is high, long service life, advantage that maintenance workload is little.
Description of drawings
Fig. 1 is the structural representation of said built-in gas-filtering device.
Fig. 2 is the internal structure sketch map of said double-layer barrel.
Fig. 3 is the structural representation of said external gas-filtering device.
Fig. 4 is the structural representation of said gas-detecting device.
The specific embodiment
Through the specific embodiment, the technical scheme of the utility model is done further detailed description below.
As shown in Figure 4, a kind of gas-detecting device, it comprises gas detecting instrument 10, sensing chamber 11, aspiration pump 12, non-return valve 13, gas drier 14, gas-filtering device 9 and explosion-proof fan; Wherein, The aspirating hole of said gas-filtering device 9 is communicated with the air inlet of said gas drier 14; The gas outlet of said gas drier 14 is communicated with the import of said non-return valve 13; The outlet of said non-return valve 13 is communicated with the air inlet of said aspiration pump 12, and the gas outlet of said aspiration pump 12 is communicated with the air inlet of said sensing chamber 11; Said gas detecting instrument 10 is installed in the said sensing chamber 11 or on the locular wall, said sensing chamber 11 is provided with the gas outlet, so that the gas communication in the sensing chamber 11; Said gas drier 9 is built-in gas-filtering devices.
Said gas detecting instrument 10 comprises microcontroller circuit and the Detection Circuit that is connected said microcontroller circuit respectively, sound light alarming circuit, communicating circuit, aspiration pump starting or stopping control circuit, explosion-proof fan actuator and power circuit; Wherein, said aspiration pump starting or stopping control circuit connects said aspiration pump, establishes program in the said microcontroller circuit basis, controls said aspiration pump with intermittent work mode, realizes the purpose that regularly detects; Said explosion-proof fan actuator connects said explosion-proof fan, and said microcontroller circuit is controlled said explosion-proof fan start and stop according to the detected gas concentration of gathering, so that in time discharge in the methane-generating pit or fuel gas or toxic and harmful in the underground pipe network.
As shown in Figure 1, a kind of built-in gas-filtering device, it comprises that the airtight double-layer barrel of lower end nozzle, sealing are arranged on the cover 4 of said double-layer barrel upper end nozzle, are arranged on aspirating hole 5 and filter paper 3 on the said cover 4; Wherein, be densely covered with air-vent respectively on the internal layer barrel 2 of said double-layer barrel and the outer barrel 1.
As shown in Figure 2; Said filter paper 3 is arranged between the internal layer barrel 2 and outer barrel 1 of said double-layer barrel; Specifically; Said filter paper 3 is between the internal layer barrel 2 and outer barrel 1 that rugosity is evenly distributed on said double-layer barrel, and the internal layer barrel 2 of said double-layer barrel is separated with outer barrel 1; Filter paper 3 is arranged with special folding mode between the ectonexine barrel; Between the ectonexine barrel, in the limited space, increased the filter area of filter paper 3 greatly, filter area is big more; Filter effect is good more; Then the degree of purification of detected gas is high more, and then, be beneficial to long, the effectively work of gas detecting instrument more.
The upper end nozzle of said double-layer barrel and said cover 4 are connected through flangeseal, so that regularly open cover 4, in time change filter paper 3 as required.
During use, said built-in gas-filtering device is installed in the interior perhaps underground pipe network of methane-generating pit, and is communicated with the air inlet of said gas drier 14, get final product through the aspirating hole 5 of flexible pipe with said built-in gas-filtering device.
During work, under the effect of aspiration pump 12, detected gas is drawn between the ectonexine barrel by the air-vent of outer barrel 1; After filter paper 3 filters, can effectively filter out the thick substances in the detected gas, detected gas is purified; At last, clean detected gas gets in the sensing chamber 11 through gas drier 14, non-return valve 13, aspiration pump 12 again, and is final; Detected gas is sent to the sensor surface of Detection Circuit, detects for sensor.
1 difference of present embodiment and embodiment mainly is: said gas drier 9 is external gas-filtering devices.
As shown in Figure 3; A kind of external gas-filtering device; It comprises urceolus 6 and embodiment 1 described built-in gas-filtering device, and wherein, the double-layer barrel of said built-in gas-filtering device is sleeved in the said urceolus 6; The edge of the nozzle of said urceolus 6 and said cover 4 is tightly connected, and is provided with air admission hole 7 at the bottom of 6 of the said urceolus.
During use; Said external gas-filtering device is arranged on outside the outer perhaps underground pipe network of methane-generating pit; And the employing exhaust tube, one of make end be communicated with air admission hole 7, the other end be placed in the methane-generating pit or underground pipe network in; Be communicated with the air inlet of said gas drier 14 through the aspirating hole 5 of flexible pipe again, get final product said external gas-filtering device.
During work, under the effect of aspiration pump 12, detected gas is at first got in the urceolus 6 by exhaust tube; Air-vent by outer barrel 1 is drawn between the ectonexine barrel again, after filter paper 3 filters, can effectively filter out the thick substances in the detected gas; Detected gas is purified; At last, clean detected gas gets in the sensing chamber 11 through gas drier 14, non-return valve 13, aspiration pump 12 again, and is final; Detected gas is delivered to the sensor surface of Detection Circuit, detects for sensor.
Should be noted that at last: above embodiment only in order to the explanation the utility model technical scheme but not to its restriction; Although with reference to preferred embodiment the utility model has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can make amendment to the specific embodiment of the utility model perhaps is equal to replacement to the part technical characterictic; And not breaking away from the spirit of the utility model technical scheme, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (9)
1. built-in gas-filtering device; It is characterized in that: it comprises that the airtight double-layer barrel of lower end nozzle, sealing are arranged on the cover of said double-layer barrel upper end nozzle, are arranged on aspirating hole and filter paper on the said cover; Wherein, Be densely covered with air-vent respectively on the internal layer barrel of said double-layer barrel and the outer barrel, said filter paper is arranged between the internal layer barrel and outer barrel of said double-layer barrel.
2. built-in gas-filtering device according to claim 1 is characterized in that: said filter paper is between internal layer barrel and the outer barrel that rugosity is evenly distributed on said double-layer barrel and the internal layer barrel of said double-layer barrel and outer barrel is separated.
3. built-in gas-filtering device according to claim 1 and 2 is characterized in that: the upper end nozzle of said double-layer barrel is connected through flangeseal with said cover.
4. external gas-filtering device; It is characterized in that: it comprises urceolus and claim 1 or 2 described built-in gas-filtering devices, and wherein, said double-layer barrel is sleeved in the said urceolus; Said urceolus nozzle and said cover edge are tightly connected, and are provided with air admission hole at the bottom of the said urceolus tube.
5. external gas-filtering device according to claim 4 is characterized in that: the upper end nozzle of said double-layer barrel is connected through flangeseal with said cover.
6. gas-detecting device; It is characterized in that: it comprises gas detecting instrument, sensing chamber, aspiration pump, non-return valve, gas drier and gas-filtering device; Wherein, The aspirating hole of said gas-filtering device is communicated with the air inlet of said gas drier, and the gas outlet of said gas drier is communicated with the import of said non-return valve, and the outlet of said non-return valve is communicated with the air inlet of said aspiration pump; The gas outlet of said aspiration pump is communicated with the air inlet of said sensing chamber, and said gas detecting instrument is installed in the said sensing chamber; Said gas drier is claim 1 or 2 described built-in gas-filtering devices.
7. gas-detecting device according to claim 6; It is characterized in that: said gas detecting instrument comprises microcontroller circuit and Detection Circuit that is connected said microcontroller circuit respectively and aspiration pump starting or stopping control circuit; Wherein, said aspiration pump starting or stopping control circuit connects said aspiration pump so that said microcontroller circuit is controlled said aspiration pump start and stop.
8. gas-detecting device; It is characterized in that: it comprises gas detecting instrument, sensing chamber, aspiration pump, non-return valve, gas drier and gas-filtering device; Wherein, The aspirating hole of said gas-filtering device is communicated with the air inlet of said gas drier, and the gas outlet of said gas drier is communicated with the import of said non-return valve, and the outlet of said non-return valve is communicated with the air inlet of said aspiration pump; The gas outlet of said aspiration pump is communicated with the air inlet of said sensing chamber, and said gas detecting instrument is installed in the said sensing chamber; Said gas drier is the described external gas-filtering device of claim 4.
9. gas-detecting device according to claim 8; It is characterized in that: said gas detecting instrument comprises microcontroller circuit and Detection Circuit that is connected said microcontroller circuit respectively and aspiration pump starting or stopping control circuit; Wherein, said aspiration pump starting or stopping control circuit connects said aspiration pump so that said microcontroller circuit is controlled said aspiration pump start and stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120522203 CN202387326U (en) | 2011-12-14 | 2011-12-14 | Internal gas filter device and external gas filter device as well as gas detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120522203 CN202387326U (en) | 2011-12-14 | 2011-12-14 | Internal gas filter device and external gas filter device as well as gas detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202387326U true CN202387326U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120522203 Expired - Lifetime CN202387326U (en) | 2011-12-14 | 2011-12-14 | Internal gas filter device and external gas filter device as well as gas detection device |
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| CN (1) | CN202387326U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489088A (en) * | 2011-12-14 | 2012-06-13 | 河南汉威电子股份有限公司 | Internal and external gas filtering devices and gas detecting device |
| CN103463893A (en) * | 2013-09-12 | 2013-12-25 | 江西稀有稀土金属钨业集团有限公司 | Filtering system as well as application thereof |
| CN116297066A (en) * | 2023-03-22 | 2023-06-23 | 滨州市特种设备检验研究院 | Boiler flue gas detection device with flue gas filtering capability |
-
2011
- 2011-12-14 CN CN 201120522203 patent/CN202387326U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102489088A (en) * | 2011-12-14 | 2012-06-13 | 河南汉威电子股份有限公司 | Internal and external gas filtering devices and gas detecting device |
| CN103463893A (en) * | 2013-09-12 | 2013-12-25 | 江西稀有稀土金属钨业集团有限公司 | Filtering system as well as application thereof |
| CN103463893B (en) * | 2013-09-12 | 2015-12-23 | 江西稀有稀土金属钨业集团有限公司 | A kind of filtration system and application thereof |
| CN116297066A (en) * | 2023-03-22 | 2023-06-23 | 滨州市特种设备检验研究院 | Boiler flue gas detection device with flue gas filtering capability |
| CN116297066B (en) * | 2023-03-22 | 2024-04-05 | 新疆新伊碳能环保科技股份有限公司 | Boiler flue gas detection device with flue gas filtering capability |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 Zhengzhou high tech Development Zone, Henan, Cedar Road, No. 169 Patentee after: Hanwei Technology Group Limited by Share Ltd Address before: 450001 Zhengzhou high tech Development Zone, Henan, Cedar Road, No. 169 Patentee before: Henan Hanwei Electronics Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |