CN203443593U - Gas path detection filter - Google Patents
Gas path detection filter Download PDFInfo
- Publication number
- CN203443593U CN203443593U CN201320565924.7U CN201320565924U CN203443593U CN 203443593 U CN203443593 U CN 203443593U CN 201320565924 U CN201320565924 U CN 201320565924U CN 203443593 U CN203443593 U CN 203443593U
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- China
- Prior art keywords
- gas
- screw rod
- inlet pipe
- detection filter
- screw
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- Expired - Fee Related
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- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a gas path detection filter. A gas input pipe, a gas accommodating cavity and a gas output pipe are communicated in sequence, the gas accommodating cavity is internally provided with a screw composed of a screw rod and a screw nut, the screw rod is inserted in the gas input pipe and is in threaded connection with the gas input pipe, and the top end of the screw rod is provided with a bevel. Peaks of gas source signal fluctuation are filtered and a fluctuation amplitude value is reduced through dual roles of gas path damping and gas capacitor filtering to make a gas source signal stably output and make meter reading relatively stable during gas path detection. The gas path detection filter has the advantages of simple structure, convenient use and the like and can be widely used in measurement of pressure, flow velocity, flow quantity of flue gas in the fields of metallurgy, chemical industry, building materials, electric power and the like.
Description
Technical field
The utility model relates to a kind of gas circuit detection filter device.
Background technology
In the fields such as metallurgy, chemical industry, building materials, electric power, usually to measure the parameter such as pressure, flow velocity, flow of gas circuit, generally, because gas circuit airflow fluctuation is very large, cause measurement instrument demonstration meeting very unstable, digital instrument demonstration numeral is beated, and pointer meters can swing back and forth an equilibrium position, at some, fluctuate little in the situation that, can also estimate to read to obtain a mean value; When gas circuit airflow fluctuation is large, digital instrument or pointer meters just at all cannot readings, cause measuring gas circuit parameter.For digital instrument, can take software filtering to improve output stationarity, but pointer meters is addressed this problem with regard to bad.
Summary of the invention
The purpose of this utility model is to provide a kind of gas circuit detection filter device, and the spike that it can filtering source of the gas signal fluctuation and cut down fluctuation amplitude makes the output of source of the gas signal steadily, and when gas circuit detects, meter reading is relatively stable.
Above-mentioned purpose is achieved through the following technical solutions:
A kind of gas circuit detection filter device, gas inlet pipe, air-capacitor chamber, gas output tube are communicated with successively, described air-capacitor is provided with the screw being comprised of screw rod and nut in chamber, described screw rod inserts gas inlet pipe and is threaded with gas inlet pipe, and the top of described screw rod is provided with for the inclined-plane with gas inlet pipe (1) formation gas passage.
Described air-capacitor chamber is cylindrical, and its diameter is 2～4 times of gas inlet pipe diameter, and length is less than the length of screw.
The angle of described inclined-plane and screw rod is 15～40 degree.
The top of described nut is provided with groove, and the cross sectional shape of described groove is regular polygon.
Also comprise that pipeline connects mouth, described pipeline connects mouth and is set in respectively on gas inlet pipe and gas output tube.
In the utility model, screw can increase the resistance of the air-flow of fluctuation, when air-flow is behind the air-capacitor chamber of excessive bulk, and can the stable parameter signal of output smoothing.The utility model, by spike and the reduction fluctuation amplitude of the gentle capacitor filter double action of gas circuit damping filtering source of the gas signal fluctuation, makes the output of source of the gas signal steadily, and when gas circuit detects, meter reading is relatively stable.Length by adjusting screw(rod) in gas inlet pipe, the just pore size between adjustable inclined-plane and gas inlet pipe, thus regulate gas circuit damping, change smoothness and the response time of output signal.Groove is established on the top of nut, is from gas output tube, to insert screw is regulated with spanner for convenient.Pipeline connects mouth and is convenient to the utility model connection gas circuit and detecting instrument.The features such as the utility model also has simple in structure, easy to use, can be widely used in flue gas pressure, the flow velocity in the fields such as metallurgy, chemical industry, building materials, electric power, the measurement of flow.
Accompanying drawing explanation
Fig. 1 is cross-sectional view of the present utility model.
Fig. 2 is the structural representation of nut in the utility model.
Fig. 3 is use view of the present utility model.
In figure: 1-gas inlet pipe, 2-air-capacitor chamber, 3-gas output tube, 4-screw (41-screw rod, 42-inclined-plane, 43-nut, 44-groove), 5-pipeline connects mouth, 6-pitot tube, 7-measurement instrument.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is elaborated.
Embodiment: as shown in Figure 1 and Figure 2, a kind of gas circuit detection filter device, gas inlet pipe 1, air-capacitor chamber 2, gas output tube 3 are communicated with successively, in described air-capacitor chamber 2, be provided with the screw 4 being formed by screw rod 41 and nut 43, described screw rod 41 inserts gas inlet pipes 1 and is also threaded with gas inlet pipe 1, the top of described screw rod 41 be provided with one with screw rod spend for 41 one-tenths 30 angles for the inclined-plane 42 with gas inlet pipe formation gas passage.Described air-capacitor chamber 2 is cylindrical, and its diameter is 3 times of gas inlet pipe 1 diameter, and length is slightly less than the length of screw 4, avoids screw 4 to come off from gas inlet pipe 1.The top of described nut 43 is provided with groove 44, and the cross sectional shape of described groove 44 is regular hexagon.On described gas inlet pipe 1 and gas output tube 3, also sheathed respectively pipeline connects mouth 5.
During use, first the M6 hex wrench matching with regular hexagon groove 44 is inserted from gas output tube 3, the distance of set screw 4, make between inclined-plane 42 and gas inlet pipe 1 to form the passage can air feed stream passing through, then press shown in Fig. 3, by the gas inlet pipe in the utility model 1, gas output tube 3 connects mouth 5 and pitot tube 6 by pipeline respectively, measurement instrument 7 connects, whether the demonstration numeral of observing measurement instrument is stable, if unstable, take off the sheathed pipeline of gas output tube 3 and connect the flexible pipe on mouth 5, hex wrench is inserted to output and connect mouth, with hex wrench, regulate the size in space, the length of screw rod 41 in gas inlet pipe 1 is shorter, space is larger, otherwise less, can regulate according to pressure or the flow velocity of measuring gas circuit, if pressure or flow velocity are large, reduce space, increase damping, if pressure or flow velocity are little, increase space, reduce damping.And then the system that connects tests, to observe and show numeral, debugging repeatedly, until show that numeral only has on a small quantity and beats, can read accurate numeral and be advisable.
Claims (5)
1. gas circuit detection filter device, it is characterized in that: gas inlet pipe (1), air-capacitor chamber (2), gas output tube (3) are communicated with successively, in described air-capacitor chamber (2), be provided with the screw (4) being formed by screw rod (41) and nut (43), described screw rod (41) inserts gas inlet pipe (1) and is threaded with gas inlet pipe (1), and the top of screw rod (41) is provided with for the inclined-plane (42) with gas inlet pipe (1) formation gas passage.
2. gas circuit detection filter device according to claim 1, is characterized in that: described air-capacitor chamber (2) is for cylindrical, and its diameter is 2～4 times of gas inlet pipe (1) diameter, and length is less than the length of screw (4).
3. gas circuit detection filter device according to claim 1, is characterized in that: described inclined-plane (42) are 15～40 degree with the angle of screw rod (41).
4. the gas circuit detection filter device described in any one according to claim 1～3, is characterized in that: the top of described nut (43) is provided with groove (44), and the cross sectional shape of described groove (44) is regular polygon.
5. the gas circuit detection filter device described in any one according to claim 1～3, is characterized in that: also comprise that pipeline connects mouth (5), described pipeline connects mouth (5) and is set in respectively on gas inlet pipe (1) and gas output tube (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565924.7U CN203443593U (en) | 2013-09-12 | 2013-09-12 | Gas path detection filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320565924.7U CN203443593U (en) | 2013-09-12 | 2013-09-12 | Gas path detection filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203443593U true CN203443593U (en) | 2014-02-19 |
Family
ID=50094632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320565924.7U Expired - Fee Related CN203443593U (en) | 2013-09-12 | 2013-09-12 | Gas path detection filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203443593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512587A (en) * | 2013-09-12 | 2014-01-15 | 武汉分析仪器厂 | Gas circuit detection filter and gas circuit detection filtering method |
-
2013
- 2013-09-12 CN CN201320565924.7U patent/CN203443593U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512587A (en) * | 2013-09-12 | 2014-01-15 | 武汉分析仪器厂 | Gas circuit detection filter and gas circuit detection filtering method |
| CN103512587B (en) * | 2013-09-12 | 2015-12-23 | 武汉分析仪器厂 | Gas circuit Fault detection filter |
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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 |
Granted publication date: 20140219 Termination date: 20140912 |
|
| EXPY | Termination of patent right or utility model |