CN202661112U - High-temperature gas flow transducer - Google Patents
High-temperature gas flow transducer Download PDFInfo
- Publication number
- CN202661112U CN202661112U CN 201220314117 CN201220314117U CN202661112U CN 202661112 U CN202661112 U CN 202661112U CN 201220314117 CN201220314117 CN 201220314117 CN 201220314117 U CN201220314117 U CN 201220314117U CN 202661112 U CN202661112 U CN 202661112U
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- China
- Prior art keywords
- temperature gas
- gas flow
- pressure transducer
- connecting pipe
- strain
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Abstract
The utility model discloses a high-temperature gas flow transducer, which belongs to the technical field of flow transducers. The technical key points are that the high-temperature gas flow transducer comprises a shell, wherein a cavity of the shell is connected with a tee pipe through a connecting pipe; two pipe ports of the tee pipe are connected with a circulating pipeline of external high-temperature gas flow to be detected, and a third pipe port of the tee pipe is connected with the connecting pipe; a supporting mechanism is arranged in a cavity of the connecting pipe and is movably connected with a steel sheet; one end of the steel sheet is arranged between cavities of the two pipe ports connected with the circulating pipeline of the external high-temperature gas flow to be detected, and the other end of the steel sheet extends into the shell; a strain pressure transducer is arranged in the shell; a detection end of the strain pressure transducer is connected with the steel sheet extending into the shell; and the strain pressure transducer is in circuit connection with a pressure and flow conversion transmitter. The utility model aims to provide the high-temperature gas flow transducer which has the advantages of compact structure, convenience in use and good effect; and the high-temperature gas flow transducer is used for gas flow detection.
Description
Technical field
The utility model relates to a kind of flow sensor, more particularly, relates in particular to a kind of high-temperature gas flow sensor.
Background technology
At sensor, common gas flow sensor is to adopt vane type, eddy currents, electromagnetic type, hot type, ultrasonic type etc. several to the critical component of gas flow measurement.The gas flow sensor of these types, its common shortcoming is that high, the easy wearing and tearing of complex structure, cost, sensitivity and measuring accuracy are poor, the flow measurement of gas particularly is difficult to reach a high temperature, it is 92204506.2 gas meter such as the patent No., in the disclosed technical scheme, its sensor is the gas push blade rotary by flowing mainly, obtains reflecting the pulse signal of flow by electromagnetic inductor effect fixing on the permanent-magnet steel body on the blade and the circumference.The flow sensor that also has a kind of Hall-type, owing to the flow that all needs by the rotation ability measurement gas of impeller, and if measure high-temperature gas, then High Temperature Gas cognition causes sensor failure to the damage of the physical construction of rotating vane.
The utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, and a kind of compact conformation, easy to use and respond well high-temperature gas flow sensor are provided.
The technical solution of the utility model is achieved in that a kind of high-temperature gas flow sensor, comprise housing, wherein said housing inner chamber is connected with three-way pipe by connecting pipe, wherein two interface tubes of three-way pipe are connected with high-temperature gas circulation duct outside to be detected, the 3rd interface tube of described three-way pipe is connected with connecting pipe, in the inner chamber of connecting pipe, be provided with supporting mechanism, be connected with steel disc at supporting mechanism, a wherein end of described steel disc is arranged between three-way pipe and two the interface tube inner chambers that outside high-temperature gas circulation duct to be detected is connected, and the other end of steel disc extends in the housing; Be provided with strain pressure transducer in housing, the test side of the strain pressure transducer steel disc interior with extending to housing is connected, and described strain pressure transducer circuit is connected with pressure versus flow conversion transmitter.
In the above-mentioned high-temperature gas flow sensor, described supporting mechanism is comprised of upper support sheet and the lower support sheet of mutual corresponding matching, is provided with the slit that adapts with steel disc between upper and lower support chip, and described steel disc live splint is located at this place, slit.
In the above-mentioned high-temperature gas flow sensor, be provided with the compressive strain sheet above the described strain pressure transducer, be provided with the tensile strain sheet below strain pressure transducer, the compressive strain sheet is connected with the tensile strain sheet with pressure versus flow conversion transmitter circuit and is connected.
In the above-mentioned high-temperature gas flow sensor, described strain pressure transducer middle part along continuous straight runs is provided with the stress deformation through hole, and described compressive strain sheet and tensile strain sheet are separately positioned on stress deformation through hole both sides.
In the above-mentioned high-temperature gas flow sensor, described housing sidewall is provided with louvre.
In the above-mentioned high-temperature gas flow sensor, described three-way pipe is the T font, and wherein the interface tube that is located along the same line of two axis is connected with high-temperature gas circulation duct outside to be detected; Vertically be connected with connecting pipe with the 3rd interface tube of above-mentioned two interface tubes.
In the above-mentioned high-temperature gas flow sensor, the end that described connecting pipe communicates with the housing inner chamber extends in the housing; Described strain pressure transducer one end is fixed on the interior connecting pipe outer wall of housing, and the strain pressure transducer other end is connected with steel disc with heat insulating mattress by heat-resisting colloidal sol.
In the above-mentioned high-temperature gas flow sensor, be provided with heat insulating mattress between described strain pressure transducer and the connecting pipe, described strain pressure transducer is fixedly connected with by holding screw with connecting pipe.
After the utility model adopts said structure, when crossing steel disc by gas flow, the pressure conduction that steel disc is subject to is to strain pressure transducer, process pressure versus flow conversion transmitter obtains flow to the function conversion regime of pressure and flow again, its measuring accuracy is higher than traditional Hall-type flowmeter accuracy, measurement range is wider, and measurement result is more stable; Simultaneously, also help and realize the metering digitizing, can realize measuring the high-temperature gas flow, wear-resisting durable; If steel disc is carried out corrosion-resistance treatment, then can also become the flow sensor that to measure corrosion resistance gas.
Description of drawings
The utility model is described in further detail below in conjunction with the embodiment in the accompanying drawing, but do not consist of any restriction of the present utility model.
Fig. 1 is structural representation of the present utility model.
Among the figure: housing 1, louvre 1a, connecting pipe 2, three-way pipe 3, supporting mechanism 4, upper support sheet 4a, lower support sheet 4b, steel disc 5, strain pressure transducer 6, compressive strain sheet 6a, tensile strain sheet 6b, stress deformation through hole 6c, pressure versus flow conversion transmitter 7, heat insulating mattress 8, holding screw 9.
Embodiment
Consult shown in Figure 1ly, a kind of high-temperature gas flow sensor of the present utility model comprises housing 1, is provided with louvre 1a at housing 1 sidewall; Be connected with three-way pipe 3 at housing 1 inner chamber by connecting pipe 2, wherein two interface tubes of three-way pipe 3 are connected with high-temperature gas circulation duct outside to be detected, the 3rd interface tube of described three-way pipe 3 is connected with connecting pipe 2, in the present embodiment, three-way pipe 3 is the T font, and wherein the interface tube that is located along the same line of two axis is connected with high-temperature gas circulation duct outside to be detected; Vertical be connected with connecting pipe 2 with the 3rd interface tube of above-mentioned two interface tubes and the 3rd interface tube extends in the housing 1, connect for convenient, three interface tubes of three-way pipe 3 are preferably designed to screw thread mouth, be attached thereto simultaneously the connecting pipe 2 and the high-temperature gas circulation duct that connect and also adopt the screw thread mouth that adapts, can cooperate like this to adopt to be threaded, operate more convenient; In the inner chamber of connecting pipe 2, be provided with supporting mechanism 4, be connected with steel disc 5 at supporting mechanism 4, a wherein end of described steel disc 5 is arranged between three-way pipe 3 and two the interface tube inner chambers that outside high-temperature gas circulation duct to be detected is connected, and the other end of steel disc 5 extends in the housing 1; In housing 1, be provided with the strain pressure transducer 6 of strip, the test side of strain pressure transducer 6 is connected with steel disc 5 in extending to housing 1, described strain pressure transducer 6 circuit are connected with pressure versus flow conversion transmitter 7, particularly, strain pressure transducer 6 one ends are fixed on connecting pipe 2 outer walls in the housing 1, strain pressure transducer 6 other ends are connected with steel disc 5 with heat insulating mattress by heat-resisting colloidal sol, be provided with heat insulating mattress 8 between strain pressure transducer 6 and connecting pipe 2, described strain pressure transducer 6 is fixedly connected with by holding screw 9 with connecting pipe 2.
In the present embodiment, described supporting mechanism 4 is comprised of upper support sheet 4a and the lower support sheet 4b of mutual corresponding matching, at upper and lower support chip 4a, is provided with the slit that adapts with steel disc 5 between the 4b, and described steel disc 5 live splints are located at this place, slit.Simultaneously, be provided with compressive strain sheet 6a above the strain pressure transducer 6, be provided with tensile strain sheet 6b below strain pressure transducer 6, compressive strain sheet 6a is connected with tensile strain sheet 6b with pressure versus flow conversion transmitter 6 circuit and is connected; Further, be provided with stress deformation through hole 6c at strain pressure transducer 6 middle part along continuous straight runs, described compressive strain sheet 6a and tensile strain sheet 6b are separately positioned on stress deformation through hole 6c both sides.
During use, three-way pipe 3 is connected with the high-temperature gas circulation duct, when gas passes through pipeline, steel disc 5 is subjected to the gas flow effect and is stressed, this pressure conducts on steel disc 5 and the strain pressure transducer 6 through the effect of steel disc 5 and supporting construction 4, strain pressure transducer 6 stress deformations are so that the resistance value of the compressive strain sheet 6a on it and tensile strain sheet 6b changes.This variation is undertaken having obtained flow value after the data acquisition and processing (DAP) by pressure versus flow conversion transmitter 7, and is presented on the LCD LCDs by in connecting line cut-in pressure and the flow conversion transmitter 7.The utility model gathers data on flows indirectly by steel disc 5, so that the sensitive compressible members of sensor can be effectively protected, makes to obtain its serviceable life prolonging.
Claims (8)
1. high-temperature gas flow sensor, comprise housing (1), it is characterized in that, described housing (1) inner chamber is connected with three-way pipe (3) by connecting pipe (2), wherein two interface tubes of three-way pipe (3) are connected with high-temperature gas circulation duct outside to be detected, the 3rd interface tube of described three-way pipe (3) is connected with connecting pipe (2), in the inner chamber of connecting pipe (2), be provided with supporting mechanism (4), be connected with steel disc (5) at supporting mechanism (4), a wherein end of described steel disc (5) is arranged between three-way pipe (3) and two the interface tube inner chambers that outside high-temperature gas circulation duct to be detected is connected, and the other end of steel disc (5) extends in the housing (1); In housing (1), be provided with strain pressure transducer (6), the test side of strain pressure transducer (6) steel disc (5) interior with extending to housing (1) is connected, and described strain pressure transducer (6) circuit is connected with pressure versus flow conversion transmitter (7).
2. high-temperature gas flow sensor according to claim 1, it is characterized in that, described supporting mechanism (4) is comprised of upper support sheet (4a) and the lower support sheet (4b) of mutual corresponding matching, at upper and lower support chip (4a, be provided with the slit that adapts with steel disc (5) 4b), described steel disc (5) live splint is located at this place, slit.
3. high-temperature gas flow sensor according to claim 1, it is characterized in that, be provided with compressive strain sheet (6a) above the described strain pressure transducer (6), be provided with tensile strain sheet (6b) below strain pressure transducer (6), compressive strain sheet (6a) is connected 6b with the tensile strain sheet) be connected with pressure versus flow conversion transmitter (6) circuit respectively.
4. high-temperature gas flow sensor according to claim 3, it is characterized in that, described strain pressure transducer (6) middle part along continuous straight runs is provided with stress deformation through hole (6c), and described compressive strain sheet (6a) and tensile strain sheet (6b) are separately positioned on stress deformation through hole (6c) both sides.
5. high-temperature gas flow sensor according to claim 1 is characterized in that, described housing (1) sidewall is provided with louvre (1a).
6. according to claim 1 to 5 arbitrary described high-temperature gas flow sensors, it is characterized in that described three-way pipe (3) is the T font, wherein the interface tube that is located along the same line of two axis is connected with high-temperature gas circulation duct outside to be detected; Vertically be connected with connecting pipe (2) with the 3rd interface tube of above-mentioned two interface tubes.
7. high-temperature gas flow sensor according to claim 6 is characterized in that, the end that described connecting pipe (2) communicates with housing (1) inner chamber extends in the housing (1); Described strain pressure transducer (6) one ends are fixed on interior connecting pipe (2) outer wall of housing (1), and strain pressure transducer (6) other end is connected with steel disc (5) with heat insulating mattress by heat-resisting colloidal sol.
8. high-temperature gas flow sensor according to claim 7, it is characterized in that, be provided with heat insulating mattress (8) between described strain pressure transducer (6) and the connecting pipe (2), described strain pressure transducer (6) is fixedly connected with by holding screw (9) with connecting pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314117 CN202661112U (en) | 2012-06-29 | 2012-06-29 | High-temperature gas flow transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220314117 CN202661112U (en) | 2012-06-29 | 2012-06-29 | High-temperature gas flow transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661112U true CN202661112U (en) | 2013-01-09 |
Family
ID=47456015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220314117 Expired - Fee Related CN202661112U (en) | 2012-06-29 | 2012-06-29 | High-temperature gas flow transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202661112U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424974A (en) * | 2015-12-10 | 2016-03-23 | 无锡拓能自动化科技有限公司 | Air conditioner pipeline flow velocity monitor |
| CN105652031A (en) * | 2015-12-10 | 2016-06-08 | 无锡拓能自动化科技有限公司 | Air conditioner pipeline flow velocity monitor |
-
2012
- 2012-06-29 CN CN 201220314117 patent/CN202661112U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105424974A (en) * | 2015-12-10 | 2016-03-23 | 无锡拓能自动化科技有限公司 | Air conditioner pipeline flow velocity monitor |
| CN105652031A (en) * | 2015-12-10 | 2016-06-08 | 无锡拓能自动化科技有限公司 | Air conditioner pipeline flow velocity monitor |
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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: 20130109 Termination date: 20180629 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |