CN209356528U - A kind of miniaturization high temperature wind speed feeler lever - Google Patents
A kind of miniaturization high temperature wind speed feeler lever Download PDFInfo
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- CN209356528U CN209356528U CN201920046475.2U CN201920046475U CN209356528U CN 209356528 U CN209356528 U CN 209356528U CN 201920046475 U CN201920046475 U CN 201920046475U CN 209356528 U CN209356528 U CN 209356528U
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- outer tube
- connector
- inner sleeve
- feeler lever
- wind speed
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Abstract
It tests the speed field more particularly to a kind of miniaturization high temperature wind speed feeler lever the utility model relates to air quantity, the difference is that: it includes the body of rod and the connector on the body of rod；The body of rod includes outer tube and inner sleeve, and the outer tube and inner sleeve are the cavity structure of top opening, sealed bottom, and inner sleeve is axially set in outer tube；Housing tube wall side is equipped with static pressure hole, and the other side is equipped with full pressure hole；Connector has side wall, roof and connector cavity, sidewall bottom extends to form bottom edge inwardly, outer tube top and bottom are connected along sealed bottom, connector further includes the axial sensor total pressure air inlet pipe and sensor static pressure air inlet pipe for being arranged in roof, the sensor total pressure air inlet pipe is connected to connector cavity, and the sensor total pressure air inlet pipe bottom end is connect with inner sleeve end sealing.The utility model high-temperature resistant result is good, practical.
Description
Technical field
It tests the speed field more particularly to a kind of miniaturization high temperature wind speed feeler lever the utility model relates to air quantity.
Background technique
Air velocity transducer is a kind of common wind speed measurement tool, can carry out real-time monitoring to the wind speed of present position,
It is widely used in mine, electric power, tobacco, medicine etc. needs the field of real-time monitoring wind speed；In some specific environments, due to life
The factors such as production cause wind speed temperature very high, and common air velocity transducer can not adapt to this hot environment, while carbon dioxide etc. is useless
Recycling, the discharge of gas belong to hot environment mostly, therefore need a kind of energy wind speed measuring device resistant to high temperature in these fields；
Summary of the invention
The purpose of this utility model is to provide for a kind of miniaturization high temperature wind speed feeler lever, and high-temperature resistant result is good, practicability
By force.
In order to solve the above technical problems, the technical solution of the utility model are as follows: a kind of miniaturization high temperature wind speed feeler lever, including
The body of rod and the connector on the body of rod；
The body of rod includes outer tube and inner sleeve, and the outer tube and inner sleeve are top opening, sealed bottom
Cavity structure, the inner sleeve are axially set in outer tube；Housing tube wall side is equipped with the static pressure hole being connected to outer tube cavity,
The housing tube wall other side is equipped with the full pressure hole being connected to inner sleeve cavity and with the isolation of outer tube cavity；
The connector has side wall, roof and connector cavity, and sidewall bottom extends to form bottom edge inwardly, described outer
Cannula tip and bottom are connected along sealed bottom, and bottom edge is passed through at the top of the inner sleeve and is located in connector cavity, the inner sleeve
There is gap at wall and bottom between inside；The connector further includes the axial sensor total pressure air inlet pipe and sensing for being arranged in roof
Device static pressure air inlet pipe, the sensor total pressure air inlet pipe bottom end are connect with inner sleeve end sealing, the sensor static pressure air inlet
Pipe is connected to connector cavity.
By above scheme, the feeler lever height is 200~210mm, and the housing pipe outside diameter is 8~10mm；External diameter of rod body
Preferably 8mm, it is carefully more many than the detection bar of common anemometry, significantly reduce detection bar and high temperature gas flow
Contact area, to reduce flow of the high temperature gas flow by feeler lever, the heat dissipation effect made is more preferable, and feeler lever is also more small-sized
Change, is easily installed, can be used for the measurement of narrow air velocity duct.
By above scheme, the feeler lever is structure as a whole, and material is 304 stainless steels；Feeler lever is using reduction medium temperature
Stainless steel, is resistant to 120 DEG C of high temperature, and practicability is high.
By above scheme, the axis of the inner sleeve and outer tube is overlapped；Air-flow enters the stream in inner sleeve and outer tube
Move more uniform, raising measurement accuracy.
By above scheme, the position of the static pressure hole and full pressure hole is symmetrical relative to axis horizontal；The air-flow measured is located at
Same plane reduces location error, further increases measurement accuracy.
By above scheme, the static pressure hole and full pressure hole are the 3~8 of housing pipe outside diameter relative to the height of body of rod bottom end
Times；It is separate when static pressure hole and full pressure hole ensure feeler lever installation relative to 3~8 times that the height of body of rod bottom end is housing pipe outside diameter
The feeler lever length that the body of rod of connector one end only has 1/3 is fixed in air hose, and remaining 2/3 feeler lever is exposed in air, can be with
Play heat spreading function.
By above scheme, the side-wall outer side of the connector is equipped with screw thread, and the side-wall outer side bottom of connector is equipped with annular
Boss；Screw thread and annular convex platform facilitate the fixation of feeler lever position.
Compared with prior art, the utility model has the following beneficial effects:
One, the utility model structure is simple, and full pressure hole meets Xiang Fengxiang, measure be incoming flow total pressure, static pressure hole is back to wind
To, measure be incoming flow static pressure, the sensor separately set experiences two different pressure from full pressure hole and static pressure hole respectively,
Export differential pressure signal, after by the way that air speed value is calculated, there is good stability；Feeler lever uses stainless steel material, is resistant to 120 DEG C
High temperature, practicability is high, and secondly good heat dissipation effect, may be implemented the effect of fast cooling；Body of rod length is longer and diameter is smaller, and
When installation the body of rod largely it is exposed in air, further progress heat dissipation；The utility model uses the cooling of simple and efficient
Strategy, can be widely applied to high temperature gas flow measuring wind speed field at the features such as maintaining cost advantage；
Two, the utility model is miniaturization structure, is easily installed, can be used for the measurement of narrow air velocity duct.
Detailed description of the invention
Fig. 1 is the utility model embodiment overall structure diagram；
Fig. 2 is the present embodiment side structure schematic view；
Fig. 3 is the present embodiment overlooking structure diagram；
Fig. 4 is cross-sectional view of the Fig. 2 along line A-A；
Fig. 5 is the enlarged drawing of part B in Fig. 4；
Fig. 6 is the structure chart of connector in Fig. 4；
Fig. 7 is the structure chart of inner sleeve and outer tube in Fig. 4.
Appended drawing reference: the 1, body of rod；101, outer tube；102, inner sleeve；103, static pressure hole；104, full pressure hole；2, connector；
201, side wall；201a, bottom edge；201b, screw thread；201c, annular convex platform；202, roof；203, connector cavity；204, sensor
Total pressure air inlet pipe；205, sensor static pressure air inlet pipe.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to the accompanying drawing and specifically
Embodiment is described in further detail the utility model.
Please refer to Fig. 1 to Fig. 7, the utility model is a kind of miniaturization high temperature wind speed feeler lever comprising the body of rod 1 and set on bar
Connector 2 on body 1；In the present embodiment, feeler lever is structure as a whole, and material is 304 stainless steels.
In conjunction with Fig. 1, Fig. 4, Fig. 5 and Fig. 7, the body of rod 1 includes outer tube 101 and inner sleeve 102, outer tube 101 and inner sleeve
102 be the cavity structure of top opening, sealed bottom, and inner sleeve 102 is axial to be set in outer tube 101, inner sleeve 102 and outer
The axis of casing 101 is overlapped, 102 bottom end of inner sleeve and the welding of 101 bottom end of outer tube；In the present embodiment, feeler lever height is
200mm, 101 outer diameter of outer tube are 8mm, and 102 outer diameter of inner sleeve is 2mm, and the tube wall of outer tube 101 and inner sleeve 102 is
0.5mm。
101 wall side of outer tube is equipped with the static pressure hole 103 being connected to 101 cavity of outer tube, and the 101 wall other side of outer tube is set
There is the full pressure hole 104 being connected to 102 cavity of inner sleeve and with the isolation of 101 cavity of outer tube, static pressure hole 103 and full pressure hole 104
Position is symmetrical relative to axis horizontal；The number of static pressure hole 103 and full pressure hole 104 can be one, or multiple, static pressure
When the quantity of hole 103 and full pressure hole 104 is respectively 1, survey is single-point wind speed, the quantity point of static pressure hole 103 and full pressure hole 104
When Wei not be multiple, survey be mean value wind speed；Static pressure hole 103 and full pressure hole 104 are outer tube relative to the height of 1 bottom end of the body of rod
3~8 times of 101 outer diameters；
In conjunction with Fig. 1, Fig. 3, Fig. 4 and Fig. 6, connector 2 has side wall 201, roof 202 and connector cavity 203, side wall
201 bottoms extend to form bottom inwardly and connect along 201a, 101 top of outer tube and bottom along 201a sealed bottom, and inner sleeve 102 pushes up
Portion passes through bottom and is located in connector cavity 203 along 201a, and there is gap at 102 wall of inner sleeve and bottom between the inside 201a；Connector 2
It further include the axial sensor total pressure air inlet pipe 204 and sensor static pressure air inlet pipe 205 for being arranged in roof 202, sensor total pressure
Air inlet pipe 204 is connected to connector cavity 203, and 204 bottom end of sensor total pressure air inlet pipe is connect with 102 end sealing of inner sleeve.
Screw thread 201b is equipped on the outside of the side wall 201 of connector 2,201 exterior bottom of side wall of connector 2 is equipped with annular convex platform
201c。
In the present embodiment, 1 bottom end of the body of rod i.e. one end far from connector 2 is the probe for detecting air velocity, wind speed
Measurement range is 0~20m/s；Full pressure hole 104 is met into Xiang Fengxiang, measure be incoming flow total pressure, static pressure hole 103 back to wind direction,
Measure be incoming flow static pressure；It is complete through sensor that high temperature gas flow in air hose enters 102 cavity of inner sleeve from full pressure hole 104 respectively
Be pressed into tracheae 204 and be transmitted to the differential pressure pick-up separately set, from static pressure hole 103 enter 101 cavity of outer tube through sensor static pressure into
Tracheae 205 is transmitted to differential pressure pick-up；External differential pressure pick-up experiences two from full pressure hole 104 and static pressure hole 103 respectively
A different pressure, export differential pressure signal, after by the way that air speed value is calculated.
Because air-flow is high temperature, select for probe one end of 200mm feeler lever only to protrude into length on mounting means
The 1/3 of air hose, remaining 2/3 is exposed in air, for radiating.
The above content is combine specific embodiment further detailed description of the utility model, and it cannot be said that
The specific implementation of the utility model is only limited to these instructions.For the utility model person of an ordinary skill in the technical field
For, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, all should be considered as belonging to
In the protection scope of the utility model.
Claims (7)
1. a kind of miniaturization high temperature wind speed feeler lever, it is characterised in that: including the body of rod (1) and the connector being set on the body of rod (1)
(2)；
The body of rod (1) includes outer tube (101) and inner sleeve (102), and the outer tube (101) and inner sleeve (102) are
The cavity structure of top opening, sealed bottom, the inner sleeve (102) are axially set in outer tube (101)；Outer tube (101)
Tube wall side is equipped with the static pressure hole (103) that be connected to outer tube (101) cavity, outer tube (101) the tube wall other side equipped with it is interior
The full pressure hole (104) casing (102) cavity connection and completely cut off with outer tube (101) cavity；
The connector (2) includes side wall (201), roof (202) and connector cavity (203), and side wall (201) bottom is inwardly
Bottom is extended to form along (201a), outer tube (101) top is connect the bottom of with along (201a) sealed bottom, the inner sleeve
(102) top passes through bottom and is located in connector cavity (203) along (201a), and inner sleeve (102) tube wall and bottom are along (201a)
There is gap between inside；The connector (2) further includes the axial sensor total pressure air inlet pipe (204) for being arranged in roof (202)
With sensor static pressure air inlet pipe (205), the sensor total pressure air inlet pipe (204) bottom end and inner sleeve (102) end sealing connect
It connects, the sensor static pressure air inlet pipe (205) is connected to connector cavity (203).
2. miniaturization high temperature wind speed feeler lever according to claim 1, it is characterised in that: the feeler lever height be 200~
210mm, outer tube (101) outer diameter are 8~10mm.
3. miniaturization high temperature wind speed feeler lever according to claim 1, it is characterised in that: the feeler lever is structure as a whole, material
Matter is 304 stainless steels.
4. miniaturization high temperature wind speed feeler lever according to claim 1, it is characterised in that: the inner sleeve (102) and housing
The axis for managing (101) is overlapped.
5. miniaturization high temperature wind speed feeler lever according to claim 4, it is characterised in that: the static pressure hole (103) and total pressure
The position in hole (104) is symmetrical relative to axis horizontal.
6. miniaturization high temperature wind speed feeler lever according to claim 2, it is characterised in that: the static pressure hole (103) and total pressure
Hole (104) is relative to 3~8 times that the height of the body of rod (1) bottom end is outer tube (101) outer diameter.
7. miniaturization high temperature wind speed feeler lever according to claim 1, it is characterised in that: the side wall of the connector (2)
(201) outside is equipped with screw thread (201b), and side wall (201) exterior bottom of connector (2) is equipped with annular convex platform (201c).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920046475.2U CN209356528U (en) | 2019-01-11 | 2019-01-11 | A kind of miniaturization high temperature wind speed feeler lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920046475.2U CN209356528U (en) | 2019-01-11 | 2019-01-11 | A kind of miniaturization high temperature wind speed feeler lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209356528U true CN209356528U (en) | 2019-09-06 |
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ID=67802923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920046475.2U Active CN209356528U (en) | 2019-01-11 | 2019-01-11 | A kind of miniaturization high temperature wind speed feeler lever |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001785A (en) * | 2021-11-30 | 2022-02-01 | 合肥科迈捷智能传感技术有限公司 | Pressure guiding structure of flowmeter and differential pressure type flowmeter |
| CZ309111B6 (en) * | 2020-12-15 | 2022-02-02 | Akademie múzických umění v Praze | A device for measuring the speed of air flow from the gap of the lip organ pipe |
-
2019
- 2019-01-11 CN CN201920046475.2U patent/CN209356528U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ309111B6 (en) * | 2020-12-15 | 2022-02-02 | Akademie múzických umění v Praze | A device for measuring the speed of air flow from the gap of the lip organ pipe |
| CN114001785A (en) * | 2021-11-30 | 2022-02-01 | 合肥科迈捷智能传感技术有限公司 | Pressure guiding structure of flowmeter and differential pressure type flowmeter |
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