CN210036841U

CN210036841U - Pipe section type ultrasonic flow measuring device

Info

Publication number: CN210036841U
Application number: CN201921022550.8U
Authority: CN
Inventors: 冷吉强
Original assignee: Qingdao Wanshui Technology Co Ltd
Current assignee: Qingdao Wanshui Technology Co Ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-02-07
Anticipated expiration: 2029-07-02

Abstract

The utility model relates to a pipe-section type ultrasonic flow measuring device, which comprises an installation pipe, wherein flanges are radially protruded at two ends of the installation pipe, a split type flange plate is sleeved at the inner side of each flange, and the inner diameter of each flange plate is smaller than the outer diameter of each flange plate; the tube body of the mounting tube is provided with a transducer, and the transducer is mounted on the mounting tube through a connecting piece; and a mounting box is fixed on the tube body of the mounting tube. The utility model discloses a technical problem that will solve is that current ultrasonic wave current surveying device installation and debugging is complicated, and not corrosion-resistant.

Description

Pipe section type ultrasonic flow measuring device

Technical Field

The utility model relates to a flow monitoring field, more specifically, the utility model relates to a pipeline segmentation ultrasonic wave current surveying device.

Background

Need measure the water delivery flow in the pipeline under pressure in many fields such as water conservancy, water and electricity and chemical industry, flow measurement's measuring instrument also divides a lot of, has electromagnetic flowmeter, ultrasonic flowmeter etc. and traditional ultrasonic flowmeter's mounting means is: the method comprises the steps that after the position of a transducer of a pipeline to be measured is located according to the standard requirement, the transducer is fixed in a mode of tapping a hole to fix an ultrasonic transducer or welding a seat to the corresponding position of the pipeline, finally, relevant flow calculation is carried out according to relevant geometric data of transducer installation and input flowmeter host parameters, and for large pipelines, multiple groups of transducers are generally required to be installed to guarantee the accuracy of flow measurement.

The field positioning installation mode mainly has the following disadvantages:

(1) the mode of tapping by opening holes or welding the seat on site can damage the anticorrosive coating of the original pipeline, the corrosion of the pipeline can be accelerated, and the perfect effect can not be achieved even if the secondary corrosion prevention is carried out in the later period;

(2) the material of the transducer provided by a flowmeter manufacturer is different from that of an on-site pipe section, and weak electrode reaction can be caused to generate corrosion after the transducer is contacted with water for a long time, so that the sealing property between the transducer and the pipe wall is damaged;

(3) due to the limitation of field conditions, large position deviation may be generated by adopting field positioning, the requirement on the position accuracy of the transducer by adopting a flow integration mode corresponding to the ultrasonic flowmeter is high, and the closer the position is to the standard requirement, the closer the measured flow value is to the true value;

(4) after the field transducers are installed, the measurement accuracy of the field calibration flowmeter is difficult, and especially for thick pipelines, because the transducers are arranged at all positions of the peripheral surface of the pipeline, the adjustment of the position angle of each group of transducers in a narrow pipe network is very troublesome.

Therefore, there is a need for an ultrasonic flow measurement device that can solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at solve current survey device and be corrosion-resistant, installation and debugging difficulty scheduling problem.

According to one aspect of the utility model, a pipe-segment type ultrasonic flow measuring device is provided, which comprises an installation pipe, wherein flanges are radially protruded at two ends of the installation pipe, a split type flange plate is sleeved at the inner side of the flange, and the inner diameter of the flange plate is smaller than the outer diameter of the flange; the tube body of the mounting tube is provided with a transducer, and the transducer is mounted on the mounting tube through a connecting piece; and a mounting box is fixed on the tube body of the mounting tube.

According to the scheme, the transducer is directly installed on the installation pipe, debugging is completed, and then the transducer is butted into the pipeline, so that debugging is more convenient, and an anticorrosive coating of the original pipeline is not required to be damaged; in the installation, if need adjust the transducer, only need loosen the ring flange, rotate the installation pipe and to the relevant position can adjust the transducer. The device has simple structure and convenient debugging, and solves the problem that the traditional flow measuring device is not corrosion-resistant.

Preferably, a rubber ring is fixed on the outer side of the flange; the bottom of the flange extends outwards to form a guide pipe, and the length of the guide pipe is not greater than the height of the flange.

Through this scheme, improve the leakproofness of installation pipe and pipeline, adopt the integral type structure, and be provided with the stand pipe, it is more convenient to install.

Preferably, the connecting piece comprises a rubber ring and a clamping nut, the rubber ring is sleeved on the transducer, and the clamping nut is matched with a bottom flange of the transducer to clamp the transducer to the mounting pipe; the rubber ring is located between the clamping nut and the bottom flange.

Through this scheme, use clamping nut to press from both sides tight transducer, simple to operate is reliable, has good leakproofness.

Preferably, the transducers are all mounted to the middle of the body of the mounting tube; the installation pipes and the common pipelines can be spliced with each other as required.

By the scheme, the mounting pipes can be spliced as required, so that the transducers form a plurality of pairs of measuring groups; and pipelines with any length can be added between the installation pipes, and the measurement distance can be set according to the requirement.

Preferably, the connecting piece includes ball seat and connecting ball, set up the intercommunication on the connecting ball the inside and outside through-hole of mounting tube, the transducer peg graft to on the through-hole.

Through this scheme, the transducer can change the orientation along with the rotation of connecting the ball to realize the regulation of multi-angle, be applicable to different measuring distance.

Preferably, the through hole extends outwards from one end facing outwards to form a reinforcing part, and the length of the reinforcing part is not greater than that of the transducer.

Through this scheme, when adjusting the transducer orientation, to the rib application of force, prevent hard too big damage transducer.

The utility model has the technical effects that the device can be used as a whole to carry out flow calibration on the test bed; the corrosion resistance of the original pipeline is not damaged, the same material of the transducer and the installation pipe is ensured, and the electrochemical corrosion is not generated; the error of the size of the pipe section can be effectively controlled, and the accuracy of the position of the transducer can be ensured; the field installation and debugging work is simple and convenient, and only the pipe section and the original pipeline are butted and fixed.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural view of an ultrasonic flow measuring device according to a first embodiment of the present invention.

Fig. 2 is a schematic cross-sectional structure view of an end portion of an ultrasonic flow measuring device according to a first embodiment of the present invention.

Fig. 3 is a schematic diagram of the structure at a in fig. 2.

Fig. 4 is a schematic structural view of an ultrasonic flow measuring device according to a second embodiment of the present invention.

Fig. 5 is a schematic sectional structure view of an ultrasonic flow measuring device according to a second embodiment of the present invention.

Fig. 6 is a schematic diagram of the structure at B in fig. 5.

Fig. 7 is a schematic view of an installation structure of an ultrasonic flow measuring device according to a second embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Example one

As shown in fig. 1 to 3, the pipe-segment type ultrasonic flow measuring device in this embodiment includes an installation pipe 1100, flanges 1110 radially protrude from two ends of the installation pipe 1100, a split flange 1200 is sleeved on the inner side of the flanges 1110, that is, the flange 1200 is sleeved on the installation pipe 1100 and is movably connected, and the inner diameter of the flange 1200 is smaller than the outer diameter of the flanges 1110, so that the flange 1200 can rotate freely relative to the installation pipe 1100; the body of the installation tube 1100 is provided with a transducer 2000, and the transducer 2000 is installed on the installation tube 1100 through a connector; the body of the installation tube 1100 is fixed with an installation box 1300, and the lines of the transducer 2000 are collected in the installation box 1300 and connected with external lines through the installation box 1300. The mounting tube 1100 may be made of a non-metallic corrosion resistant material or a material similar to the housing of the transducer 2000.

By the scheme of the embodiment, the transducer 2000 is directly pre-installed on the installation pipe 1100, orientation isoparametric debugging of the transducer 2000 is completed, and the transducer is butted into a pipeline, so that debugging is more convenient, and an anticorrosive coating of the original pipeline does not need to be damaged; in the installation process, if the position and the angle of the transducer 2000 need to be adjusted, the transducer can be conveniently adjusted by loosening the flange plate and rotating the installation pipe 1100 to the corresponding position. The device has a simple structure, is convenient to debug, and solves the problem that the traditional flow measuring device is not corrosion-resistant after being installed.

The transducers 2000 of the same group can be mounted on the same mounting tube 1100, or can be mounted on different mounting tubes 1100. The diameter of the installation tube 1100 is determined according to the diameter of the pipe in the pipe network.

In this embodiment or other embodiments, a rubber ring 1120 is fixed outside the flange 1110, and the fixation is, for example, in the form of adhesive bonding or the like, so that the installation is facilitated while the sealing performance is ensured; the bottom of the flange 1110 extends outwardly to form a guide tube 1130, which guides the installation of the device and further facilitates the installation. The length of the guide tube 1130 is no greater than the height of the flange 1110. The volume of the pipeline is prevented from being too small due to too large length, and the water flow speed is prevented from being influenced.

In this or other embodiments, the connector includes a rubber ring 1142 and a clamping nut 1141, the rubber ring 1142 is sleeved on the transducer 2000, and the clamping nut 1141 cooperates with a bottom flange 1143 of the transducer 2000 to clamp the transducer 2000 to the mounting tube 1100; the rubber ring 1142 is located between the clamp nut 1141 and the bottom flange 1143. The clamping nut 1141 is threadably coupled to the transducer 2000 via threads on the transducer 2000. In this embodiment, the installation tube 1100 is provided with a plurality of installation holes (not shown) on the periphery thereof, the diameter of the installation holes is larger than the diameter of the transducer 2000 and smaller than the diameter of the bottom flange 1143, the transducer 2000 sleeved with the rubber ring 1142 is inserted into the installation holes and clamped by the clamping nut 1141, and the rubber ring 1142 deforms under the extrusion of the clamping nut 1141 to block and seal the installation holes. The mode is convenient and reliable to install, has good sealing performance, and is convenient for adjusting the transducer.

One technical effect of this embodiment is that the apparatus can be used as a whole for flow calibration on a test bed; the corrosion resistance of the original pipeline is not damaged, the same material of the transducer and the installation pipe is ensured, and the electrochemical corrosion is not generated; the error of the size of the pipe section can be effectively controlled, and the accuracy of the position of the transducer can be ensured; the field installation and debugging work is simple and convenient, and only the pipe section and the original pipeline are butted and fixed; if the installation needs to be adjusted after finishing, only need loosen the flange, rotate the position that the installation pipe arrived convenient adjustment and can adjust.

Example two

As shown in fig. 4 to 7, the ultrasonic flow measuring device in the present embodiment is different from the above embodiments in that the transducers 2000 are installed in the middle of the pipe body of the installation pipe 1100; the mounting tubes 1100 can be spliced together as desired, such that the transducers 2000 positioned on different mounting tubes 1100 form a pair of measurement sets. Multiple transducers 2000 may be mounted on each section of mounting tube 1100.

By the scheme of the embodiment, the device can splice the installation pipes 1100 as required, so that the transducer 2000 forms a plurality of pairs of measurement groups, and the measurement accuracy is ensured; and ordinary pipelines 3000 (as shown in fig. 7) with any length can be added between the installation pipes 1100, and the measurement distance can be set according to the requirements, so that the device can be suitable for different pipeline networks and different measurement requirements.

In this or other embodiments, the connector includes a ball seat 1151 and a connecting ball 1152, the connecting ball 1152 has a through hole for communicating the inside and the outside of the mounting tube 1100, and the transducer 2000 is inserted into the through hole. The transducer 2000 can change its orientation (rotate in the direction of the arrow in fig. 6) within a certain angle range with the rotation of the connecting ball 1152, thereby realizing multi-angle adjustment suitable for different measuring distances. The connection between the connecting ball 1152 and the ball seat 1151 in this embodiment is provided with a sealing member (not shown), such as a sealing ring or a sealing seat. The ball seat 1151 is exposed at the upper and lower ends of the connecting ball 1152 to a certain height, so that the transducer 2000 has a wide angular adjustment area.

In this or other embodiments, the outward end of the through-hole extends outward to form a reinforced portion 1153, and the length of the reinforced portion 1153 is not greater than the length of the transducer 2000. When the transducer 2000 is adjusted in orientation, a force is applied to the reinforcement portion 1153 to prevent damage to the transducer 2000 due to excessive force.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A pipe section type ultrasonic flow measuring device is characterized by comprising an installation pipe, flanges are radially protruded from two ends of the installation pipe, a split type flange plate is sleeved on the inner side of each flange, and the inner diameter of each flange plate is smaller than the outer diameter of each flange; the tube body of the mounting tube is provided with a transducer, and the transducer is mounted on the mounting tube through a connecting piece; and a mounting box is fixed on the tube body of the mounting tube.

2. The ultrasonic flow measuring device of claim 1, wherein a rubber ring is fixed outside the flange; the bottom of the flange extends outwards to form a guide pipe, and the length of the guide pipe is not greater than the height of the flange.

3. The ultrasonic flow measuring device of claim 1, wherein the connector comprises a rubber ring and a clamping nut, the rubber ring is sleeved on the transducer, and the clamping nut is matched with a bottom flange of the transducer to clamp the transducer to the mounting pipe; the rubber ring is located between the clamping nut and the bottom flange.

4. The ultrasonic flow measurement device of claim 1, wherein the transducers are each mounted to the middle of the shaft of the mounting tube; the installation pipes and the common pipelines can be spliced with each other as required.

5. The ultrasonic flow measuring device of claim 4, wherein the connecting member comprises a ball seat and a connecting ball, the connecting ball is provided with a through hole for communicating the inside and the outside of the mounting tube, and the transducer is inserted into the through hole.

6. The ultrasonic flow measuring device of claim 5, wherein the through hole extends outward from an outward end to form a reinforcement portion, and a length of the reinforcement portion is not greater than a length of the transducer.