CN216144380U

CN216144380U - Plug-in flowmeter

Info

Publication number: CN216144380U
Application number: CN202121492534.2U
Authority: CN
Inventors: 孙兆琳; 孟海兴; 王成业
Original assignee: Zhejiang Shenyi Electronic Technology Co ltd
Current assignee: Zhejiang Shenyi Electronic Technology Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2022-03-29
Anticipated expiration: 2031-07-02

Abstract

The utility model provides an insertion type flowmeter which comprises a pipeline, a detection mechanism and an integrating instrument, wherein a first through hole is formed in the outer wall of the pipeline; the detection mechanism comprises a fixed plate, at least one detector is arranged on the fixed plate, the fixed plate and the detector respectively penetrate through the second through hole and the first through hole and extend into the pipeline, and a circular hanging lug matched with the placing groove is arranged at the upper end of the fixed plate; an integrating instrument is arranged on the pipeline through a bracket and is connected with the detector through an electric wire. The plug-in flowmeter has novel structural design, convenient use and high detection precision, the integral integrated flow channel is inserted into a pipeline, the measurement is convenient, and the number, the installation density and the total length of the flow channel can be adjusted according to different occasions and precision requirements.

Description

Plug-in flowmeter

Technical Field

The utility model relates to a gas flowmeter, in particular to an insertion type flowmeter.

Background

A gas flow meter is a meter that measures the flow of gas and is installed in a pipeline to record the amount of gas flowing through. The disadvantages of conventional plug-in ultrasonic gas meters can be summarized in the following aspects:

1. in the aspect of precision: the pipeline is used as a flow channel, and no device for rectifying the air flow is arranged, so that the air flow disturbance is large, the measurement precision is reduced, and the phenomenon is particularly obvious in a thick pipeline.

2. In the aspect of installation: the traditional plug-in ultrasonic flowmeter has high requirements on an installation process, a connecting line of the centers of two openings on a pipeline must pass through the middle point of the cross section of the pipeline, the requirement on the transverse offset distance is relatively high, and the problem that the measurement accuracy is reduced due to the fact that the side is not close to the pipeline is solved. Therefore, the installation requirements are extremely high during installation.

3. In the aspect of calibration: because traditional bayonet ultrasonic gas flowmeter regards the pipeline as the runner, to the pipeline of different materials, different diameters, different mounting process can cause a series of errors, consequently need to carry out the calibration of pertinence after the installation is accomplished at every turn, has increased the construction degree of difficulty.

SUMMERY OF THE UTILITY MODEL

【1】 Technical problem to be solved

The utility model aims to solve the technical problem of providing an insertion type flowmeter which is novel in structural design, convenient to install, high in detection precision and wide in application range.

【2】 Technical scheme for solving problems

The utility model provides an insertion type flowmeter which comprises a pipeline, a detection mechanism and an integrating instrument, wherein a first through hole is formed in the outer wall of the pipeline, a fixing ring is arranged on the outer wall of the first through hole in the circumferential direction, a circular placing groove is formed in the fixing ring, and a second through hole is formed in the placing groove; the detection mechanism comprises a fixed plate, at least one detector is arranged on the fixed plate, the fixed plate and the detector respectively penetrate through the second through hole and the first through hole and then extend into the pipeline, and a circular hanging lug matched with the placing groove is arranged at the upper end of the fixed plate; the pipeline is provided with the integrating instrument through a support, and the integrating instrument is connected with the detector through an electric wire.

Furthermore, the inner wall of the pipeline is provided with a positioning groove, and the lower end of the fixing plate is provided with a bulge matched with the positioning groove.

Further, the diameter of the second through hole is larger than that of the first through hole.

Furthermore, the number of the detectors is three, and each detector is mounted on the fixing plate through a second screw.

Furthermore, a sealing connector matched with the electric wire is installed on the fixing ring.

Furthermore, a connector for allowing the electric wire to penetrate through is arranged on the hanging lug.

Furthermore, the upper end of retainer plate is equipped with first apron and second apron, first apron with through bolt and nut locking between the second apron.

【3】 Advantageous effects

The plug-in flowmeter has novel structural design, convenient use and high detection precision, the integral integrated flow channel is inserted into a pipeline, the measurement is convenient, and the number, the installation density and the total length of the flow channel can be adjusted according to different occasions and precision requirements.

Drawings

FIG. 1 is a schematic structural view of a plug-in flow meter of the present invention;

fig. 2 is a top view of a retaining ring in an insertion flow meter of the present invention.

Detailed Description

The following describes embodiments of the present invention in detail with reference to the accompanying drawings.

Referring to fig. 1 to 2, the present invention provides an insertion type flowmeter, which includes a pipeline 1, a detection mechanism and an integrating instrument 5, wherein a first through hole is provided on an outer wall of the pipeline 1, a position and a hole diameter of the first through hole can be set as required, a fixing ring 7 is provided in a circumferential direction of the outer wall of the first through hole, a circular placing groove 72 is provided in the fixing ring 7, a second through hole 71 is provided in the placing groove 72, and in this embodiment, for convenience of installation, a diameter of the second through hole 71 is larger than a diameter of the first through hole; the detection mechanism comprises a fixing plate 2, at least one detector 3 is arranged on the fixing plate 2, the fixing plate 2 and the detector 3 respectively penetrate through a second through hole 71 and a first through hole and then extend into the pipeline 1, a circular hanging lug 22 matched with the placing groove 72 is arranged at the upper end of the fixing plate 2, the diameter of the hanging lug 22 is slightly smaller than that of the placing groove 72, and the hanging lug 22 and the placing groove 72 are locked through a first screw; the pipeline 1 is provided with an integrating instrument 5 through a bracket 51, and the integrating instrument 5 is connected with the detector 3 through an electric wire 4.

In order to further reach the effect of being convenient for the installation, be equipped with constant head tank 11 on the inner wall of pipeline 1 in this implementation, constant head tank 11 is relative and coaxial setting with first through-hole, is equipped with the arch 21 with constant head tank 11 complex at the lower extreme of fixed plate 2.

In order to improve the detection accuracy, in the present embodiment, there are three detectors 3, and each detector 3 is mounted on the fixing plate 2 by a second screw.

In order to facilitate wiring, the hanger 22 is provided with a connector 9 for the electric wire 4 to pass through.

In order to improve the sealing effect, a sealing connector 6 matched with the electric wire 4 is arranged on the fixing ring 7 in the present market; in order to further improve the sealing effect, a first cover plate 8 and a second cover plate 10 are arranged at the upper end of the fixing ring 7 in the implementation of the market, the diameters of the first cover plate 8 and the second cover plate 10 are the same, the diameters of the first cover plate 8 and the second cover plate 10 are larger than that of the fixing ring 7, and the first cover plate 8 and the second cover plate 10 are locked through bolts and nuts; when the gas detection device is used, part of detected gas enters the circular placing groove 72 along the connecting head 9, the gas can be prevented from overflowing from the sealing connecting head 6 by installing the sealing connecting head 6 on the side wall of the circular placing groove 72, and the gas can be prevented from overflowing from the upper end of the fixing ring 7 by arranging the first cover plate 8 and the second cover plate 10 on the upper end of the fixing ring 7.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An insertion-type flow meter characterized by: the pipeline detection device comprises a pipeline, a detection mechanism and an integrating instrument, wherein a first through hole is formed in the outer wall of the pipeline, a fixing ring is arranged on the outer wall of the first through hole in the circumferential direction, a circular placing groove is formed in the fixing ring, and a second through hole is formed in the placing groove; the detection mechanism comprises a fixed plate, at least one detector is arranged on the fixed plate, the fixed plate and the detector respectively penetrate through the second through hole and the first through hole and then extend into the pipeline, and a circular hanging lug matched with the placing groove is arranged at the upper end of the fixed plate; the pipeline is provided with the integrating instrument through a support, and the integrating instrument is connected with the detector through an electric wire.

2. The plug-in flowmeter of claim 1, wherein: the inner wall of the pipeline is provided with a positioning groove, and the lower end of the fixing plate is provided with a bulge matched with the positioning groove.

3. The plug-in flowmeter of claim 1, wherein: the diameter of the second through hole is larger than that of the first through hole.

4. The plug-in flowmeter of claim 1, wherein: the number of the detectors is three, and each detector is mounted on the fixing plate through a second screw.

5. The plug-in flowmeter of claim 1, wherein: and a sealing connector matched with the electric wire is arranged on the fixed ring.

6. The plug-in flowmeter of claim 1, wherein: the hanging lug is provided with a connector for the electric wire to run through.

7. The plug-in flowmeter of claim 1, wherein: the upper end of retainer plate is equipped with first apron and second apron, first apron with lock through bolt and nut between the second apron.