CN113432776A - Wind pressure detection device in ventilation pipeline - Google Patents

Wind pressure detection device in ventilation pipeline Download PDF

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Publication number
CN113432776A
CN113432776A CN202110817811.0A CN202110817811A CN113432776A CN 113432776 A CN113432776 A CN 113432776A CN 202110817811 A CN202110817811 A CN 202110817811A CN 113432776 A CN113432776 A CN 113432776A
Authority
CN
China
Prior art keywords
air
pressure sensor
device body
wind pressure
detection device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110817811.0A
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Chinese (zh)
Inventor
章徳亨
孟楠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Wisens Technology Co ltd
Original Assignee
Hangzhou Wisens Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Wisens Technology Co ltd filed Critical Hangzhou Wisens Technology Co ltd
Priority to CN202110817811.0A priority Critical patent/CN113432776A/en
Publication of CN113432776A publication Critical patent/CN113432776A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/02—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in ohmic resistance, e.g. of potentiometers, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning

Abstract

The invention discloses a wind pressure detection device in a ventilation pipeline, and relates to the technical field of detection devices. The air guide pipeline component is fixedly connected with the device body, the air guide pipeline component comprises a pipe body, a channel is arranged in the pipe body and is arranged along the length direction of the pipe body, and one end of the channel is communicated with the air nozzle; therefore, the problems of high price, narrow application range and larger variation range of the detection pressure precision of the air pressure sensor in the prior art are solved.

Description

Wind pressure detection device in ventilation pipeline
Technical Field
The invention relates to the technical field of detection devices, in particular to a device for detecting air pressure in a ventilation pipeline.
Background
In the existing life, centralized air supply occasions such as a central air conditioner, heating ventilation air supply, boiler negative pressure and the like are applied, and the air pressure of each air supply terminal outlet is generally required to be detected and measured so as to accurately grasp the wind power transmission condition, thereby improving the use efficiency, reducing the energy consumption, improving the use experience and the like.
At present, the wind pressure in the blast pipe is monitored, sensor devices such as a pressure transmitter using a stainless steel diaphragm are generally used, but the air pressure sensor has certain defects, such as: expensive, narrow application range, and not suitable for consumer-grade applications. And the pressure transmitter changes along with time and the use environment, the detection pressure precision change range is large, annual calibration is generally needed to overcome the precision reduction problem, and the use cost is further increased.
Therefore, how to solve the problems of high price, narrow application range and large variation range of the detection pressure precision of the air pressure sensor in the prior art becomes an important technical problem to be solved by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a wind pressure detection device in a ventilation pipeline to solve the technical problems that an air pressure sensor in the prior art is high in price, narrow in application range and large in detection pressure precision change range. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a wind pressure detection device in a ventilation pipeline, which comprises:
a barometric sensor assembly comprising a pressure sensor;
the device body is fixedly connected with the air pressure sensor assembly, a cavity for placing the pressure sensor is formed in the top of the device body, an air nozzle is arranged at the bottom of the device body, a connecting hole is formed in the device body, and the air nozzle is communicated with the pressure sensor through the connecting hole;
the air guide pipeline component is fixedly connected with the device body and comprises a pipe body, a channel is arranged inside the pipe body and arranged along the length direction of the pipe body, and one end of the channel is communicated with the air nozzle.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, an air collecting opening is formed in one end, far away from the air nozzle, of the pipe body, the air collecting opening is communicated with the channel, and the ventilation direction of the air collecting opening is perpendicular to the ventilation direction of the channel.
Further, the air guide pipeline assembly further comprises a connecting plate fixedly connected with the device body, and the connecting plate is fixedly connected along the circumferential direction of the pipe body.
Further, a groove-shaped hole is formed in an end face of the connecting plate, and the groove-shaped hole is formed on a side close to the device body.
Further, a groove is formed at one end of the channel close to the device body.
Further, still including setting up first sealing washer in the recess, first sealing washer is O type sealing washer.
Further, still including setting up pressure sensor with the second sealing washer between the connecting hole, the second sealing washer is O type sealing washer.
Further, the shape of the air collecting opening is horn-shaped.
Further, the pipe body and the connecting plate are of an integrated structure.
The technical scheme provided by the application comprises the following beneficial effects:
in the technical scheme provided by the invention, the air pressure detection device in the ventilation pipeline comprises an air pressure sensor assembly, a device body and an air guide pipeline assembly, wherein the air pressure sensor assembly comprises a pressure sensor, the device body is fixedly connected with the air pressure sensor assembly, a cavity for placing the pressure sensor is formed in the top of the device body, an air nozzle is arranged at the bottom of the device body, a connecting hole is formed in the device body, the air nozzle is communicated with the pressure sensor through the connecting hole, the air guide pipeline assembly is fixedly connected with the device body, the air guide pipeline assembly comprises a pipe body, a channel is formed in the pipe body and is arranged along the length direction of the pipe body, and one end of the channel is communicated with the air nozzle. According to the arrangement, by means of the air guide pipeline assembly, air flows into the device body through the channel in the pipe body and then reaches the pressure sensor in the cavity of the device body, the pressure sensor senses the air pressure, and the air pressure information sensed by the pressure sensor can be conveniently converted into information such as real-time pipeline air speed and air volume; therefore, the problems of high price, narrow application range and larger variation range of the detection pressure precision of the air pressure sensor in the prior art are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the whole air pressure detection device in the ventilation duct in the embodiment of the invention;
fig. 2 is an exploded view of a wind pressure detection device in a ventilation duct in an embodiment of the invention;
FIG. 3 is a cross-sectional view of a device body in an embodiment of the invention;
fig. 4 is a cross-sectional view of an air duct assembly in an embodiment of the present invention.
Reference numerals:
1. a barometric pressure sensor assembly; 2. a pressure sensor; 3. a device body; 4. a cavity; 5. an air nozzle; 6. connecting holes; 7. a wind guide pipe assembly; 8. a pipe body; 9. a channel; 10. an air collecting opening; 11. a connecting plate; 12. a slot-shaped hole; 13. a groove; 14. a first seal ring.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The purpose of this embodiment is to provide a wind pressure detection device in the ventilation duct, thereby solved the problem that air pressure sensor's in the prior art is expensive, application scope is narrow and detection pressure precision variation range is great.
Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Please refer to fig. 1-4, this embodiment provides a wind pressure detecting device in a ventilation duct, including an air pressure sensor assembly 1, a device body 3 and a wind guiding pipeline assembly 7, the air pressure sensor assembly 1 includes a pressure sensor 2, the device body 3 is fixedly connected with the air pressure sensor assembly 1, and a cavity 4 for placing the pressure sensor 2 is provided at the top of the device body 3, an air nozzle 5 is provided at the bottom of the device body 3, a connecting hole 6 is provided inside the device body 3, the air nozzle 5 is communicated with the pressure sensor 2 through the connecting hole 6, the wind guiding pipeline assembly 7 is fixedly connected with the device body 3, the wind guiding pipeline assembly 7 includes a pipe body 8, a channel 9 is provided inside the pipe body 8, and the channel 9 is arranged along the length direction of the pipe body 8, and one end of the channel 9 is communicated with the air nozzle 5.
With the arrangement, the pressure sensor 2 is arranged in the cavity 4 of the device body 3, and the pressure sensor 2 in the embodiment is preferably an MEMS piezoresistive pressure sensor, so that the use cost can be greatly reduced; a channel 9 in the pipe body 8 collects wind pressure information, and when airflow reaches the pressure sensor 2, the pressure sensor 2 converts a pressure signal into an electric signal so as to achieve the purpose of accurately sensing the wind pressure in the ventilation pipeline; through the structure of the scheme, the air collecting port 10 is vertically inserted into the fluid, the orientation angle of the air collecting port 10 is adjusted by matching the groove-shaped hole 12 on the device body 3 with the fixing bolt, so that the opening of the air collecting port 10 is orthogonal to the flowing direction of the fluid, and the air pressure generated by the fluid is directly conveyed to the inlet of the pressure sensor 2 through the air collecting port 10 and a connecting pipeline; the air pressure detection device in the ventilation pipeline in the embodiment has the advantages of high measurement repeatability, small volume, compact structure and convenience in installation, has the characteristics of low cost, high accuracy and easiness in maintenance compared with the traditional diaphragm type pressure transmitter, and can conveniently realize the quantization functions of real-time air pressure, air speed and air volume through the air pressure data sensed by the air pressure sensor, so that the air supply economy and accuracy are improved; therefore, the problems of high price, narrow application range and larger variation range of the detection pressure precision of the air pressure sensor in the prior art are solved.
In a more specific embodiment, the pipe 8 is provided with an air collecting opening 10 at one end far away from the air nozzle 5, the air collecting opening 10 is communicated with the channel 9, and the ventilation direction of the air collecting opening 10 is perpendicular to the ventilation direction of the channel 9; the shape of the air collection opening 10 can be set according to the specific use environment, and the shape of the air collection opening 10 in the present embodiment is preferably a trumpet shape. With such an arrangement, the wind collecting opening 10 in the shape of a horn can increase the windward area inside the channel 9, thereby improving the sensing sensitivity.
As an alternative embodiment, the air guide pipeline assembly 7 further comprises a connecting plate 11 for fixedly connecting with the device body 3, and the connecting plate 11 is fixedly connected along the circumferential direction of the pipe body 8; the device body 3 is provided with a screw hole for a screw to pass through at a position corresponding to the connecting plate 11. So set up, the screw passes the screw hole and can be in the same place the firm connection of device body 3 with air guide pipeline subassembly 7.
More specifically, a groove-shaped hole 12 is provided on an end face of the connecting plate 11, and the groove-shaped hole 12 is provided on a side close to the apparatus body 3. So set up, relative rotation is realized when the installation to the design in groove type hole 12 can make air guide pipeline subassembly 7 and device body 3 to orientation about can adjusting tubaeform air collection mouth 10, so that the vertical orientation air inlet direction in the ventilation pipeline, sensitivity and the degree of accuracy that improves the detection.
In a more specific embodiment, the channel 9 is provided with a groove 13 at an end close to the device body 3, and a first sealing ring 14 is placed in the groove 13, wherein the first sealing ring 14 is preferably an O-ring in this embodiment. So set up, first sealing washer 14 sets up between air guide pipe assembly 7 and device body 3 to can guarantee that the place that air cock 5 and body 8 are connected forms airtight connection.
In an alternative embodiment, a second sealing ring is also arranged between the pressure sensor 2 and the connection hole 6, and the second sealing ring is preferably an O-ring. So set up, pressure sensor 2 in the cavity 4 can form airtight connection with air nozzle 5 through the second sealing washer, guarantees the leakproofness of connecting between the two.
More specifically, the tube 8 and the connecting plate 11 are preferably of one-piece construction in this embodiment. So set up, air guide pipeline subassembly 7 formula forming structure as an organic whole can guarantee air guide pipeline subassembly 7's airtight effect and durable degree, the effectual life who prolongs air guide pipeline subassembly 7.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (9)

1. The utility model provides a wind pressure detection device in air pipe which characterized in that includes:
an air pressure sensor assembly (1), the air pressure sensor assembly (1) comprising a pressure sensor (2);
the device comprises a device body (3), wherein the device body (3) is fixedly connected with the air pressure sensor assembly (1), a cavity (4) for placing the pressure sensor (2) is formed in the top of the device body (3), an air nozzle (5) is arranged at the bottom of the device body (3), a connecting hole (6) is formed in the device body (3), and the air nozzle (5) is communicated with the pressure sensor (2) through the connecting hole (6);
air guide pipeline subassembly (7), air guide pipeline subassembly (7) with device body (3) fixed connection, air guide pipeline subassembly (7) include body (8), the inside of body (8) is provided with passageway (9), and passageway (9) along the length direction of body (8) sets up, the one end of passageway (9) with air nozzle (5) are linked together.
2. The wind pressure detection device in ventilation pipeline of claim 1, characterized in that, the body (8) is keeping away from the one end of air nozzle (5) is provided with air collection opening (10), air collection opening (10) with passageway (9) are linked together, and the ventilation direction of air collection opening (10) with the ventilation direction mutually perpendicular of passageway (9).
3. The wind pressure detection device in the ventilation duct according to claim 1, wherein the ventilation duct assembly (7) further comprises a connecting plate (11) for fixed connection with the device body (3), and the connecting plate (11) is fixedly connected along the circumferential direction of the pipe body (8).
4. The wind pressure detecting device in the ventilation duct according to claim 3, wherein a groove-shaped hole (12) is provided on an end face of the connecting plate (11), and the groove-shaped hole (12) is provided at a side close to the device body (3).
5. The wind pressure detecting device in the ventilation duct according to claim 1, wherein the channel (9) is provided with a groove (13) at an end close to the device body (3).
6. The wind pressure detection device in the ventilation duct according to claim 5, further comprising a first sealing ring (14) disposed in the groove (13), wherein the first sealing ring (14) is an O-shaped sealing ring.
7. The wind pressure detection device in the ventilation duct according to claim 1, further comprising a second sealing ring disposed between the pressure sensor (2) and the connection hole (6), wherein the second sealing ring is an O-ring.
8. The wind pressure detection device in the ventilation duct according to claim 2, wherein the shape of the air collection opening (10) is a trumpet shape.
9. The wind pressure detection device in the ventilation duct according to claim 3, wherein the tube (8) and the connecting plate (11) are of an integrated structure.
CN202110817811.0A 2021-07-20 2021-07-20 Wind pressure detection device in ventilation pipeline Pending CN113432776A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110817811.0A CN113432776A (en) 2021-07-20 2021-07-20 Wind pressure detection device in ventilation pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110817811.0A CN113432776A (en) 2021-07-20 2021-07-20 Wind pressure detection device in ventilation pipeline

Publications (1)

Publication Number Publication Date
CN113432776A true CN113432776A (en) 2021-09-24

Family

ID=77761032

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110817811.0A Pending CN113432776A (en) 2021-07-20 2021-07-20 Wind pressure detection device in ventilation pipeline

Country Status (1)

Country Link
CN (1) CN113432776A (en)

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