CN209559857U - For monitoring the air chamber structure of stench intensity in air - Google Patents
For monitoring the air chamber structure of stench intensity in air Download PDFInfo
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- CN209559857U CN209559857U CN201822115721.3U CN201822115721U CN209559857U CN 209559857 U CN209559857 U CN 209559857U CN 201822115721 U CN201822115721 U CN 201822115721U CN 209559857 U CN209559857 U CN 209559857U
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Abstract
The utility model relates to gas controlling device technical fields, more particularly to it is a kind of for monitoring the air chamber structure of stench intensity in air, including cavity, cavity upper cover and cavity lower cover, cavity and cavity upper cover respectively include the half of spiral of Archimedes slot, after the cavity upper cover is fastened on cavity, complete spiral of Archimedes slot is formed between, the exhaust cavity being connected to the spiral of Archimedes slot is equipped in the lower part of cavity, sensor is fixed after being placed in discharge chamber body from cavity lower part by cavity lower cover sealing, cavity top side is equipped with the air inlet being connected to spiral of Archimedes slot, cavity lower part side is equipped with the gas outlet being connected to exhaust cavity.The present apparatus uses the spiral of Archimedes slot structure of separate structure, the non-uniform situation of gas diffusion caused by being effectively reduced because of void effect, so that detection is more accurate and reliable.
Description
Technical field
The utility model relates to gas controlling device technical fields, more particularly to one kind is for monitoring stench intensity in air
Air chamber structure.
Background technique
Odorant pollutant is a kind of special substance for having peculiar smell, belongs to the pollution that typically disturbs residents, and currently complain
Focus pollutant is also considered universally acknowledged one of seven big public hazards by many scholars.With China's expanding economy and city
Rapid Expansion, influence of the stench pollutant to resident living gradually increase, and have become large- and-medium size cities in recent years
First class pollution complaint.In this context, the important component of Monitoring Urban Environment is had become to the detection of stench pollutant,
Corresponding profession detecting instrument also comes into being.The quasi-instrument is mainly by the gas that can cause stench in air
Molecule carries out Concentration Testing, and then judges the intensity of stench and the influence to human body in air.
It in gas detection, needs to carry out design effectively to sensor local environment, so that reducing interference improves detection
Accuracy.What is generallyd use at present is to be placed in sensor in sealed gas chamber to be passed through gas to be detected and detect.But such is examined
Survey method is sprung up when being passed through gas there are gas and cavitation, and then influences the variation of sensor contact pressure, thus
Sensor perception accuracy is impacted.Therefore by change air chamber structure, reduce under test gas spring up and cavitation,
For improve sensor measurement accuracy be very it is necessary to.
Utility model content
The main purpose of the utility model provides a kind of for monitoring stench intensity in air aiming at the above problem
Air chamber structure.
In order to achieve the above object, the utility model adopts the following technical solutions: a kind of for monitoring stench intensity in air
Air chamber structure, it is characterised in that: including cavity, cavity upper cover and cavity lower cover, cavity and cavity upper cover respectively include A Ji
The half of Mead helix groove after the cavity upper cover is fastened on cavity, forms complete Archimedes's spiral shell between
Spin line slot is equipped with the exhaust cavity that is connected to the spiral of Archimedes slot in the lower part of cavity, and sensor is from cavity lower part
It is fixed after being placed in discharge chamber body by cavity lower cover sealing, cavity top side is equipped with and Archimedian screw
The air inlet of wire casing connection, cavity lower part side are equipped with the gas outlet being connected to exhaust cavity.
Preferably, cavity top two sides are respectively fixed with limited block, the two sides of the cavity upper cover be equipped with it is described
The limiting slot of limited block cooperation.
Preferably, the inside cavity is coated with polycrystalline inertia dope layer.
Preferably, sealing ring is respectively equipped between the cavity upper cover, cavity lower cover and the cavity.
Preferably, the downward internal stretch in top of the cavity upper cover has strip groove.For placing temperature detecting resistance, gas is measured
Room temperature uses.
Preferably, the screw pitch of the spiral of Archimedes slot is 10 ㎜, and aperture is 8 ㎜, opens 30 ° outside taper.
Preferably, the effective aperture of the air inlet is 6mm.
Preferably, the net volume of the exhaust inside cavity is twice of sensor bulk.
The beneficial effects of the utility model are: compared with the existing technology, the present apparatus uses Archimedes's spiral shell of separate structure
Spin line slot structure, the non-uniform situation of gas diffusion caused by being effectively reduced because of void effect, so that detection is more accurate
Reliably.Effectively reduce and react or adsorb under test gas, high pollution gas and corrosive gas because of cavity, caused by detect
Inaccuracy or cross jamming problem.Chamber pressure and flow velocity caused by effectively reducing because of external environment variation or internal fluctuation
The case where disturbance, so that detection process is more stable and reliable.Test chamber inner air path is designed using spiral of Archimedes slot, and
And using the design of separate structure, overall structure is very compact, is hardly damaged, and is easily installed, according to spiral of Archimedes
Principle can make gas along the uniform flow forward of spiral of Archimedes slot, and uniformly be diffused in very much the detection of sensor
Position, additionally by spiral of Archimedes slot design so that gas from inside cavity is entered until sensor detection zone
During it is internal without hole, testing result can be made more accurate.Test chamber internal spray polycrystalline inertia coating, according to material
Polycrystalline structure, heat resistance, sliding property and the corrosion resistance of material reduce gas absorption and reaction, the accuracy of detection can be improved.
Inside cavity volume and air inlet/outlet diameter of section are controlled, cavity internal pressure disturbance and flow velocity disturbance are reduced, detection is improved and stablizes
Property.
Detailed description of the invention
Fig. 1 is the separate structure figure of the utility model；
Fig. 2 is the perspective view of cavity in the utility model；
Fig. 3 is the perspective view of cavity upper cover in the utility model；
Fig. 4 is the perspective view of cavity lower cover in the utility model；
Fig. 5 is the cross-sectional view of cavity in the utility model；
Fig. 6 is the cross-sectional view in the utility model.
Specific embodiment
With reference to the accompanying drawing and specific embodiment of the present utility model is described in detail in preferred embodiment.As Fig. 1-6 institute
Show, it is a kind of for monitoring the air chamber structure of stench intensity in air, including cavity 1, cavity upper cover 2 and cavity lower cover 3, cavity
1 constitutes spiral of Archimedes gas inlet hole structure with cavity upper cover 2.Under conditions of meeting technological level, cavity 1 and cavity upper cover
2 respectively include the half in spiral of Archimedes hole.After the cavity upper cover is fastened on cavity, formed between complete
Spiral of Archimedes slot 4 is equipped with the exhaust cavity 5 being connected to the spiral of Archimedes slot, sensing in the lower part of cavity
Device from cavity lower part be placed in discharge chamber body after by the cavity lower cover sealing fix, cavity top side be equipped with
Spiral of Archimedes slot connection air inlet 6, after gas is entered by air inlet, directly with tangent motion profile enter Ah
Base Mead spiral string holes, the fluctuation formed after avoiding gas from being blocked by barrier.Cavity lower part side is equipped with and exhaust
The gas outlet 7 of cavity connection.Cavity top two sides are respectively fixed with limited block 8, the two sides of the cavity upper cover be equipped with
The limiting slot 9 of the limited block cooperation.
When being flowed in spiral of Archimedes hole, according to the formation basic theory of spiral of Archimedes and multiple smoke test
Rear result it can be concluded that, the screw pitch of the intracorporal optimal helix of chamber is 10 ㎜, and aperture is 8 ㎜, 30 ° outside taper.Gas
In spiral of Archimedes hole and Archimedes's center line of sensor joint and the cross-sectional area phase of sensor end surface measurement
Deng, make under test gas uniformly sensor surface flow.Practical air inlet effective aperture is 6mm, detection outside test chamber
Inside cavity spiral of Archimedes aperture is 8 ㎜, according to Venturi effect, so that gas is inside spiral of Archimedes hole
Speed slows down when movement, is more advantageous to adjustment uniform gas flow, so that sensor be made to obtain more accurately measurement result.
Cavity 1 and cavity upper cover 2 are main core component, need to carry out polycrystalline inertia coating spraying process to component, guarantee
The coating thickness in spiral of Archimedes hole is uniformly and consistent, needs to carry out inclined-plane finishing after the completion of spraying again, guarantees chamber
The place of body 1 and 2 contact of incline plane of cavity upper cover is fitted close.Detection gas, high pollution gas and corrosive gas can be reduced
Reaction, absorption and corrosion to test chamber, improve the accuracy of measurement result.
Cavity 1 and cavity lower cover 3 constitute exhaust cavity, and gas is discharged by outlet, are vented inside cavity volume 17185.72
Square millimeter, 5752.58 square millimeters of sensor bulk, net volume is 11433.14 square millimeters.Net volume is sensor body
Twice of product increases the ratio of diameter and pumping bore in discharge chamber body, reduces the pressure of flowing gas according to Boyle's law principle
Power and flow velocity influence caused by disturbing, with stable detection system.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (8)
1. a kind of for monitoring the air chamber structure of stench intensity in air, it is characterised in that: including cavity, cavity upper cover and chamber
Body lower cover, cavity and cavity upper cover respectively include the half of spiral of Archimedes slot, after the cavity upper cover is fastened on cavity,
Complete spiral of Archimedes slot is formed between, is equipped in the lower part of cavity and is connected with the spiral of Archimedes slot
Logical exhaust cavity, sensor is fixed after being placed in discharge chamber body from cavity lower part by cavity lower cover sealing, described
Cavity top side is equipped with the air inlet being connected to spiral of Archimedes slot, and cavity lower part side is equipped with and exhaust cavity
The gas outlet of connection.
2. according to claim 1 for monitoring the air chamber structure of stench intensity in air, it is characterised in that: the cavity
Top two sides are respectively fixed with limited block, and the two sides of the cavity upper cover are equipped with the limiting slot cooperated with the limited block.
3. according to claim 1 for monitoring the air chamber structure of stench intensity in air, it is characterised in that: the cavity
Internal spray has polycrystalline inertia dope layer.
4. according to claim 1 for monitoring the air chamber structure of stench intensity in air, it is characterised in that: the cavity
Sealing ring is respectively equipped between upper cover, cavity lower cover and the cavity.
5. according to claim 1 for monitoring the air chamber structure of stench intensity in air, it is characterised in that: the cavity
The downward internal stretch in the top of upper cover has strip groove.
6. according to claim 1 for monitoring the air chamber structure of stench intensity in air, it is characterised in that: the A Ji
The screw pitch of Mead helix groove is 10 ㎜, and aperture is 8 ㎜, opens 30 ° outside taper.
7. according to claim 6 for monitoring the air chamber structure of stench intensity in air, it is characterised in that: the air inlet
The effective aperture of mouth is 6mm.
8. according to claim 7 for monitoring the air chamber structure of stench intensity in air, it is characterised in that: the exhaust
The net volume of inside cavity is twice of sensor bulk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822115721.3U CN209559857U (en) | 2018-12-17 | 2018-12-17 | For monitoring the air chamber structure of stench intensity in air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822115721.3U CN209559857U (en) | 2018-12-17 | 2018-12-17 | For monitoring the air chamber structure of stench intensity in air |
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| Publication Number | Publication Date |
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| CN209559857U true CN209559857U (en) | 2019-10-29 |
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| CN201822115721.3U Active CN209559857U (en) | 2018-12-17 | 2018-12-17 | For monitoring the air chamber structure of stench intensity in air |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682930A (en) * | 2018-12-17 | 2019-04-26 | 天津同阳科技发展有限公司 | For monitoring the air chamber structure of stench intensity in air |
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2018
- 2018-12-17 CN CN201822115721.3U patent/CN209559857U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109682930A (en) * | 2018-12-17 | 2019-04-26 | 天津同阳科技发展有限公司 | For monitoring the air chamber structure of stench intensity in air |
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