CN2879127Y - Flux sensor with flux signal amplifying function - Google Patents
Flux sensor with flux signal amplifying function Download PDFInfo
- Publication number
- CN2879127Y CN2879127Y CN 200620078741 CN200620078741U CN2879127Y CN 2879127 Y CN2879127 Y CN 2879127Y CN 200620078741 CN200620078741 CN 200620078741 CN 200620078741 U CN200620078741 U CN 200620078741U CN 2879127 Y CN2879127 Y CN 2879127Y
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- inner sleeve
- pressure
- static
- flow
- outer tube
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- Expired - Lifetime
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Abstract
This utility model relates to the technical field of measuring gas flow, particularly associating a flow transducer which can amplify the flow signal. The purpose of this utility model is to overcome the tiny flow signal or even no signal when measuring small velocity of gas flow with existing flow transducer. To overcome existing technical problems, the technical scheme of this utility model comprises the measuring rod which taps pressure in the trailing edge of static pressure tube, on which trailing edge the tapping of static pressure is provided, and a component for amplifying signal which consists of inner and outer waspwaist sleeves in connection with linking parts, providing with both sleeve inlets in the form of convergent tubes. The terminal of the component is equipped with a fixed notch connecting to the transducer. The tapping of static pressure is positioned in the waist on the axial line of the inner sleeve; the outlets of both inner and outer sleeves are arranged in the form of taper. The inner sleeve, whose outlet is provided in the waist of the outer sleeve, is positioned inside of the inlet of the outer sleeve.
Description
Affiliated technical field:
The utility model relates to the gas flow measurement technical field, is specifically related to a kind of flow sensor with flow signal amplifying function.
Background technology:
The applicant is by a large amount of application and further investigation, finds that (in the measurement of the gas flow of V=4～15m/s), existing flow sensor exists the problem of the too small even no signal of flow signal at minimum velocity.
Summary of the invention:
The purpose of this utility model is that a kind of flow sensor with flow signal amplifying function will be provided, solving existing flow sensor in the measurement of minimum velocity gas flow, and the problem of the too small even no signal of the flow signal of existence.
For overcoming the problem that prior art exists, the technical solution of the utility model is: a kind of flow sensor with flow signal amplifying function, comprise the measurement rod 1 that adopts the pressure of static tube trailing edge, the static tube trailing edge is provided with static pressure pressure tappings 2, its special character is: also comprise the signal amplifier module, this assembly comprises thin waist type inner sleeve 4 and the outer tube 5 that connects by web member 6, import one side of inner sleeve 4 and outer tube 5 is the gradually-reducing shape pipe, the end is provided with fixedly notch, should be fixedly notch connect with sensor, described static pressure pressure tappings 2 is positioned at eel-like figure place on the axis of inner sleeve 4; Described inner sleeve 4 and outer tube 5 outlets one side are taper, and inner sleeve 4 is arranged in import one side of outer tube 5, and the endpiece of inner sleeve 4 is positioned at the eel-like figure place of outer tube 5.
The inboard, import termination of above-mentioned inner sleeve 4 and outer tube 5 is provided with arc angling.
The inlet end of above-mentioned inner sleeve 4 and outer tube 5 is cylindric.Be more conducive to processing.
The end face of above-mentioned inner sleeve 4 and outer tube 5.Easy to assembly.
The static tube trailing edge of above-mentioned measurement rod 1 is provided with water conservancy diversion mouth 7, is provided with pressure port in this water conservancy diversion mouth 7, and it forms streamlined outer surface with nested cooperation of the static tube of measuring rod 1, and the pressure port in the water conservancy diversion mouth 7 is communicated with the static pressure pressure tappings 2 on the static tube trailing edge.
Compared with prior art, advantage of the present utility model:
1. further augmented flow signal: by the two-stage speed-raising static port pressure is reduced significantly, just can obtain big differential pressure signal, promptly reach the purpose of augmented flow signal.Still can measure suitable differential pressure signal under minimum velocity, be the latest model of the little speed gas flow measurement of heavy caliber.Compare with the single-stage speed enhancing apparatus, under the identical condition of flow, realize that differential pressure signal promotes more than 3 times again.The utility model efficiently solves and improves the key technical problem of measuring sensitivity.
2. make whole flow sensor have better average rate performance: by signalization amplifier module on the stagnation pressure pressure tappings of measuring rod,, just can realize the average rate measurement well, the measurement result accuracy is improved to the irregular pipeline of velocity flow profile; If, will play better average rate measurement effect according to design several groups of stagnation pressure pressure tappings and the signal amplifier modules on it of increasing more.
3. applied widely: the utility model can the matching used pipe diameter scope of measuring rod be 400mm≤D≤9000mm; Measurable gas flow rate reaches as high as 50m/s; Can enlarge the scope of application by the water conservancy diversion mouth that increases simultaneously, on the sensor that adopts the pressure of static tube trailing edge, all can use.
4. good stability, accuracy height, safe and reliable: the static pressure pressure tappings is the flow velocity highest point in the multistage multiplying arrangement of flow signal, and the dust in the static pressure pressure tappings can be sucked away, is difficult for stopping up, and is safe and reliable.
Description of drawings:
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of embodiment 2;
Fig. 3 is the structural representation of embodiment 3;
Fig. 4 is an one-piece construction synoptic diagram of the present utility model.
Description of reference numerals is as follows:
1-measures rod, 2--static pressure pressure tappings, 3--stagnation pressure pressure tappings, 4--inner sleeve, 5--outer tube, 6--web member, 7--water conservancy diversion mouth.
Embodiment:
To be explained in detail the utility model by specific embodiment below.
Embodiment 1, referring to Fig. 1.The utility model comprises the measurement rod 1 that adopts the pressure of static tube trailing edge, the measurement rod of applicant described in ZL03262719.X for example, the static tube trailing edge is provided with static pressure pressure tappings 2, also comprise the signal amplifier module, this assembly comprises thin waist type inner sleeve 4 and the outer tube 5 that connects by 6, import one side of inner sleeve 4 and outer tube 5 is the bowl-shape pipe of convergent, inlet end is cylindric, and the inboard in the termination is provided with arc angling, the end is provided with fixedly notch, fixedly notch connects with static tube one side of sensor, and described static pressure pressure tappings 2 is positioned at the axis eel-like figure place of inner sleeve 4; Described inner sleeve 4 and outer tube 5 outlets one side are taper, and inner sleeve 4 is arranged in import one side of outer tube 5, and the inlet end face of inner sleeve 4 and outer tube 5 flushes, and the endpiece of said inner sleeve 4 is positioned at the eel-like figure place of outer tube 5.
Above the size of the fixedly notch that is provided with of said inner sleeve 4 and outer tube 5 entrance points make according to the cross sectional shape of measuring rod.
Referring to Fig. 4, when using the utility model, measure stagnation pressure pressure tappings and the corresponding setting of static pressure pressure tappings or the alternate setting of rod, a multistage multiplying arrangement of flow signal all is installed on each static pressure pressure tappings.For example on the measurement rod, stagnation pressure pressure tappings 4～51 places are set; The static pressure pressure tappings is provided with 3～50 places, and a multistage multiplying arrangement of flow signal all can be installed on each static pressure pressure tappings.
Claims (5)
1, a kind of flow sensor with flow signal amplifying function, comprise the measurement rod (1) that adopts the pressure of static tube trailing edge, the static tube trailing edge is provided with static pressure pressure tappings (2), it is characterized in that: also comprise the signal amplifier module, this assembly comprises thin waist type inner sleeve (4) and the outer tube (5) that connects by web member (6), import one side of inner sleeve (4) and outer tube (5) is the gradually-reducing shape pipe, the end is provided with fixedly notch, should be fixedly notch connect with sensor, described static pressure pressure tappings (2) is positioned at eel-like figure place on the axis of inner sleeve (4); Described inner sleeve (4) and outer tube (5) outlet one side are taper, and inner sleeve (4) is arranged in import one side of outer tube (5), and the endpiece of inner sleeve (4) is positioned at the eel-like figure place of outer tube (5).
2, a kind of flow sensor with flow signal amplifying function as claimed in claim 1 is characterized in that: the inboard, import termination of described inner sleeve (4) and outer tube (5) is provided with arc angling.
3, a kind of flow sensor with flow signal amplifying function as claimed in claim 2 is characterized in that: the inlet end of described inner sleeve (4) and outer tube (5) is cylindric.
4, as claim 1 or 2 or 3 described a kind of flow sensors, it is characterized in that: the end face of described inner sleeve (4) and outer tube (5) with flow signal amplifying function.
5, as claim 1 or 2 or 3 described a kind of flow sensors with flow signal amplifying function, it is characterized in that: the described static tube trailing edge of measuring rod (1) is provided with water conservancy diversion mouth (7), be provided with pressure port in this water conservancy diversion mouth (7), it forms streamlined outer surface with nested cooperation of the static tube of measuring rod (1), and the pressure port in the water conservancy diversion mouth (7) is communicated with the static pressure pressure tappings (2) on the static tube trailing edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078741 CN2879127Y (en) | 2006-04-06 | 2006-04-06 | Flux sensor with flux signal amplifying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620078741 CN2879127Y (en) | 2006-04-06 | 2006-04-06 | Flux sensor with flux signal amplifying function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879127Y true CN2879127Y (en) | 2007-03-14 |
Family
ID=37861547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620078741 Expired - Lifetime CN2879127Y (en) | 2006-04-06 | 2006-04-06 | Flux sensor with flux signal amplifying function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2879127Y (en) |
-
2006
- 2006-04-06 CN CN 200620078741 patent/CN2879127Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20090318 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |