CN210123334U

CN210123334U - Air volume collector and air volume measuring device

Info

Publication number: CN210123334U
Application number: CN201920924571.2U
Authority: CN
Inventors: 刘国雷; 陈洪星; 公维宝
Original assignee: Qingdao Mingzhen Electronic Technology Co Ltd; Zhejiang Ming Zhen Electronic Ltd By Share Ltd
Current assignee: Qingdao Mingzhen Electronic Technology Co Ltd; Zhejiang Ming Zhen Electronic Ltd By Share Ltd
Priority date: 2019-06-19
Filing date: 2019-06-19
Publication date: 2020-03-03
Anticipated expiration: 2029-06-19

Abstract

The utility model provides an air quantity collector, include: an annular frame; the first pressure collecting pipe is arranged in the annular frame, two ends of the first pressure collecting pipe are connected with the annular wall of the annular frame, and a first group of collecting holes facing to a first opening surface of the annular frame are formed in the pipe wall of the first pressure collecting pipe; the second pressure collecting pipe and the first pressure collecting pipe are arranged in the annular frame in a 90-degree staggered manner, two ends of the second pressure collecting pipe are connected with the annular wall of the annular frame, and a second group of collecting holes facing to a second opening surface of the annular frame are formed in the pipe wall of the second pressure collecting pipe; and the first air duct is led out from the center of the first pressure collecting pipe and forms an angle of 90 degrees with the axis of the first group of collecting holes, and the second air duct is led out from the center of the second pressure collecting pipe and forms an angle of 90 degrees with the axis of the second group of collecting holes. The utility model discloses a collector has suppressed the interference that the vortex brought effectively, can increase substantially measurement accuracy, has solved the great problem of measurement deviation because of the air current unstability leads to. The utility model also provides an amount of wind measuring device who contains above-mentioned amount of wind collector.

Description

Air volume collector and air volume measuring device

Technical Field

The utility model relates to a wind measuring equipment field, concretely relates to amount of wind collector and amount of wind measuring device.

Background

A test point is taken at one side of a wind tunnel by a traditional wind volume measuring device, but unstable and uneven conditions exist in air flow in the wind tunnel under general conditions, so that actually measured wind volume is unstable and has large deviation. In the prior art, the air pressure value is acquired by a porous acquisition pipe, but the air duct is led out from one side of the acquisition pipe, and the measurement deviation caused by the pressure difference of the cross section of the wind tunnel cannot be completely eliminated by the mode.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in providing a simple structure is compact, the accurate amount of wind collector of data collection and amount of wind measuring device.

In order to solve the above problem, the utility model adopts the following technical scheme:

an air volume collector, comprising:

an annular frame;

the first pressure collecting pipe is arranged in the annular frame, two ends of the first pressure collecting pipe are connected with the annular wall of the annular frame, and a first group of collecting holes facing to a first opening surface of the annular frame are formed in the pipe wall of the first pressure collecting pipe;

the second pressure collecting pipe and the first pressure collecting pipe are arranged in the annular frame in a 90-degree staggered manner, two ends of the second pressure collecting pipe are connected with the annular wall of the annular frame, and a second group of collecting holes facing to a second opening surface of the annular frame are formed in the pipe wall of the second pressure collecting pipe;

and the first air duct is led out from the center of the first pressure collecting pipe and forms an angle of 90 degrees with the axis of the first group of collecting holes, and the second air duct is led out from the center of the second pressure collecting pipe and forms an angle of 90 degrees with the axis of the second group of collecting holes.

Furthermore, the number of the first group of collecting holes and the second group of collecting holes is an even number value which is more than or equal to 2, and the first group of collecting holes and the second group of collecting holes are symmetrically arranged relative to the center of the collecting pipe.

Furthermore, the first air-guide tube and the second air-guide tube respectively extend out of the annular frame after being led out from the collection tube.

The utility model also provides an amount of wind measuring device, include as above amount of wind collector to and amount of wind measuring sensor, amount of wind measuring sensor's air inlet is connected amount of wind collector's first air duct and second air duct.

The utility model has the advantages as follows:

the utility model discloses a 90 crisscross placements of one-tenth and from the pressure acquisition pipe that draws forth the air duct in center separately carry out the amount of wind collection, have not only inhibited the interference that the vortex brought effectively, draw forth the mode of air duct from the pipe center and more can increase substantially measurement accuracy to the great problem of measurement deviation because of the air current unstability leads to has been solved.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the air volume collector of the present invention.

Fig. 2 is a front view of the embodiment of fig. 1.

Fig. 3 is a rear view of the embodiment of fig. 1.

Fig. 4 is a side view of the embodiment of fig. 1.

Detailed Description

For further understanding of the present invention, preferred embodiments of the present invention will be described below with reference to examples, but it should be understood that these descriptions are only for the purpose of further illustrating the features and advantages of the present invention, and are not intended to limit the claims of the present invention.

The utility model discloses a first embodiment provides an air collector, as shown in fig. 1-4, it includes ring frame 4, becomes 90 crisscross first pressure acquisition pipe 1 and the second pressure acquisition pipe 2 of being provided with in this ring frame 4, tip between them all with ring frame's rampart airtight connection. Meanwhile, the pipe wall of the first pressure collecting pipe 1 is provided with a first group of collecting holes 10 facing the first opening surface 4a of the annular frame 4, and the pipe wall of the second pressure collecting pipe 2 is provided with a second group of collecting holes 20 facing the second opening surface 4b of the annular frame 4.

As a preferred embodiment, the number of the first group of collecting holes 10 and the second group of collecting holes 20 is an even number value which is more than or equal to 2, and the first group of collecting holes and the second group of collecting holes are symmetrically arranged relative to the center of the collecting pipe, so that the air guide pipe led out from the center can accurately collect the pressure value of the cross section in the wind tunnel.

In addition, a first drainage hole forming an angle of 90 degrees with the axis of the first group of collecting holes 10 is formed in the center of the first pressure collecting pipe 1, and a first air duct 3a is connected to the first drainage hole; correspondingly, a second drainage hole forming an angle of 90 degrees with the axis of the second group of collecting holes 20 is formed in the center of the second pressure collecting pipe 2, and a second air duct 3b is connected to the second drainage hole.

In a preferred embodiment, as shown in FIG. 4, first airway tube 3a and second airway tube 3b extend in parallel from the respective collection tubes out of annular frame 4.

The utility model discloses the second embodiment still provides an amount of wind measuring device, including the first embodiment amount of wind collector to and amount of wind measuring sensor, wherein amount of wind collector's first air duct 3a and second air duct 3b are connected to amount of wind measuring sensor's air inlet, survey the air current of gathering the amount of wind collector.

The air volume collector in the embodiment adopts a mode of leading out the air guide tube from the central position of the porous collecting tube to measure the air volume, and can collect the air volume in two directions, namely the direction opposite to the wind and the leeward direction, has the advantages of simple and compact structure, no need of too high process in processing, accurate data collection and stronger applicability, and is suitable for different ventilation pipelines.

Through multiple tests, the deviation between the air volume measured by the air volume measuring device in the embodiment and the actual air volume is small.

The above description of the embodiments is only intended to help understand the method of the present invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. An air volume collector is characterized by comprising:

an annular frame (4);

the first pressure collecting pipe (1) is arranged in the annular frame (4), two ends of the first pressure collecting pipe are connected with the annular wall of the annular frame (4), and a first group of collecting holes (10) facing to a first opening surface (4a) of the annular frame (4) are formed in the pipe wall;

the second pressure collecting pipe (2) and the first pressure collecting pipe (1) are arranged in the annular frame (4) in a 90-degree staggered mode, two ends of the second pressure collecting pipe are connected with the annular wall of the annular frame (4), and a second group of collecting holes (20) facing a second opening surface (4b) of the annular frame (4) are formed in the pipe wall;

and a first gas duct (3a) leading from the centre of the first pressure collection tube (1) at an angle of 90 ° to the axis of the first set of collection holes (10), and a second gas duct (3b) leading from the centre of the second pressure collection tube (2) at an angle of 90 ° to the axis of the second set of collection holes (20).

2. The air volume collector of claim 1, characterized in that the number of the first group of collecting holes (10) and the second group of collecting holes (20) are both even numbers greater than or equal to 2 and are symmetrically arranged relative to the center of the collecting pipe.

3. Air collector according to claim 1, characterised in that the first (3a) and second (3b) ducts extend parallel to the outside of the ring frame (4) after exiting from the collection duct.

4. An air volume measuring device, characterized by comprising:

an air volume collector as claimed in any one of claims 1 to 3;

and the air inlet of the air volume measuring sensor is connected with the first air duct (3a) and the second air duct (3b) of the air volume collector.