CN216899050U

CN216899050U - On-line installation plug-in type ultrasonic flowmeter

Info

Publication number: CN216899050U
Application number: CN202123074549.XU
Authority: CN
Inventors: 王运波; 陈进; 杨庆春; 王庆腾
Original assignee: Shanghai Panda Machinery Group Co Ltd
Current assignee: Shanghai Panda Machinery Group Co Ltd
Priority date: 2021-12-09
Filing date: 2021-12-09
Publication date: 2022-07-05
Anticipated expiration: 2031-12-09

Abstract

The utility model relates to an online installation plug-in ultrasonic flowmeter, which comprises a transmitter, a signal wire and a plug-in ultrasonic sensor which are connected in sequence. The ultrasonic sensor has two parts, namely a sound wave transmitting end and a receiving end, which are respectively arranged on two sides of the pipeline, a base is respectively welded on two sides of the pipeline, a guide seat is arranged on the base, a gland is arranged on the top end of the guide seat, a ball body with a through hole is arranged in the guide seat, a valve rod is connected to the outer side of the solid wall of the ball body, the valve rod penetrates out of the through hole in the side wall of the guide seat, and a probe of the ultrasonic sensor is inserted into the through hole in the center of the gland and is inserted into the pipeline through a mounting hole in the pipeline. When any ultrasonic sensor needs to be replaced, the pipe network can realize online maintenance and overhaul without water supply interruption; the plug-in ultrasonic sensor can be detached on line, and the combined transmitter is sent to a detection laboratory for calibration or verification.

Description

On-line installation plug-in type ultrasonic flowmeter

Technical Field

The utility model belongs to the technical field of ultrasonic flowmeters, and particularly relates to an online installation plug-in type ultrasonic flowmeter.

Background

With the gradual implementation of the national water-saving action scheme, the water saving of the whole society is greatly promoted, the utilization efficiency of water resources is comprehensively improved, a water-saving production and living mode is formed, the national water safety is guaranteed, and the high-quality development is promoted. The water taking metering is particularly important, and the flow metering equipment matched with the large-caliber pipe network flow for metering has higher technical and price requirement cost for the equipment, so that the water cannot be easily cut off particularly for the large-caliber pipe network, and once the flow metering equipment fails, the later maintenance is also an important influence factor. By integrating the requirements and the influencing factors, a flow metering device which has high cost performance, is convenient to install and maintain and does not influence the normal water supply of the municipal pipe network is needed to meet the flow metering of the large-caliber pipe network.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an online installation plug-in type ultrasonic flowmeter, which realizes the function of online plug-in during maintenance and repair and simultaneously ensures accurate and reliable metering in a large-caliber pipe network.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an online installation bayonet ultrasonic flowmeter, including consecutive changer, signal line and bayonet ultrasonic sensor, its characterized in that, bayonet ultrasonic sensor total two parts divide into sound wave emission end and receiving terminal, locate the pipeline both sides respectively, it has two mounting holes to open on the pipeline wall, it has a base to weld respectively on the mounting hole, install the guide holder on the base, the guide holder top is equipped with the gland, be equipped with the ball seat in the guide holder, install a spheroid that has the through-hole in the ball seat, the spheroid solid wall outside is connected with the valve rod, the valve rod by the through-hole of guide holder lateral wall is outwards worn out, bayonet ultrasonic sensor's probe by the through-hole at gland center insert and by the mounting hole on the pipeline penetrates the pipeline, the guide holder respectively with gland, gland, The plug-in ultrasonic sensor is hermetically connected with the base.

Furthermore, the guide seat is a reducing hollow pipe, can be divided into four sections according to the difference of the inner diameter, the first section cavity and the plug-in ultrasonic sensor are connected through threads from top to bottom, the inner diameter of the second section cavity is larger than that of the first section cavity, a ball seat is fixed inside the second section cavity, a second sealing gasket is arranged in the third section cavity, the second sealing gasket is connected with the plug-in ultrasonic sensor in a sealing mode, and the inner diameter of the fourth section is the same as that of the second section. The included angle between the probe surface of the plug-in ultrasonic sensor and the axis is 30 degrees, and the two probe surfaces of the transmitting end and the receiving end are opposite.

Further, the base and the pipeline are connected through full welding.

Further, the diameter of the through hole in the ball body is matched with the outer diameter of the insertion type ultrasonic sensor.

Furthermore, an extension arm which is connected with the valve rod and has an included angle of 90 degrees is arranged outside the valve rod.

Advantageous effects

The utility model has simple structure, simple operation and high cost performance, does not need a pipe network to stop water when the emitter and the receiver of the ultrasonic sensor need to be replaced, can realize online maintenance and overhaul, and can completely take out the ultrasonic sensor for maintenance or calibration by only half pulling out the ultrasonic sensor and then blocking water flow through the valve rod rotating ball body during maintenance and overhaul.

The probes at the sound wave transmitting end and the sound wave receiving end of the ultrasonic sensor are designed into 30-degree inclined planes, and when the probe surfaces of the sound wave transmitting end and the sound wave receiving end are aligned, the signal intensity is stronger than that of the symmetrical arrangement design, so that the accuracy of the flow measurement of the large-diameter pipe network is facilitated.

Drawings

Fig. 1 is a schematic diagram of an online-installed plug-in ultrasonic flowmeter.

Fig. 2 is a cross-sectional view of the transmitting end of the ultrasonic flow meter of fig. 1.

Wherein, 1-a transmitter; 2-a signal line; 3-plug-in ultrasonic sensors; 4-pressing the cover; 5, sealing gasket I; 6-a guide seat; 7-a ball seat; 8-sphere; 9-a valve stem; 10-sealing gasket II; 11-sealing gasket III; 12-a base; 13-pipeline.

Detailed Description

The utility model will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

As shown in fig. 1 and 2, the utility model provides an online-installed plug-in ultrasonic flowmeter, which comprises a transmitter 1, a signal wire 2 and a plug-in ultrasonic sensor 3 which are connected in sequence. The plug-in ultrasonic sensor 3 has two parts, which are divided into a transmitting end and a receiving end, and are respectively arranged at two sides of the pipeline 13. The transmitting end transmits ultrasonic signals and the receiving end on the other side receives the sound wave signals to obtain sound wave transmission time difference, and the sound wave transmission time difference is transmitted to the transmitter 1 through the signal line 2 to finally calculate the flow data of the water medium in the pipeline 13. Two mounting holes are formed in the wall of the pipeline 13, and the base 12 is welded to each mounting hole. The base 12 and the pipeline 13 are connected by full welding.

The installation scheme of the transmitting end and the receiving end of the plug-in ultrasonic sensor 3 on the base 12 is the same, and the installation structure of the transmitting end is taken as an example for explanation.

As shown in fig. 2, a guide seat 6 is mounted on the base 12, and a gland 4 is arranged at the top end of the guide seat 6.

Guide holder 6 is a reducing hollow tube, can divide into the four sections according to the difference of internal diameter, from top to bottom first section cavity with bayonet ultrasonic sensor 3 is fixed through threaded connection, second section cavity internal diameter is greater than first section cavity and inside be fixed with ball seat 7, the third section cavity in be equipped with sealed two 10 guarantees with bayonet ultrasonic sensor 3 sealing connection, fourth section internal diameter are the same with the second section bayonet ultrasonic sensor 3 passes behind sealed two 10 that fill up and collides with guide holder 6 and leads to impaired. The included angle between the probe surface of the plug-in ultrasonic sensor and the axis is 30 degrees, and the two probe surfaces of the transmitting end and the receiving end are opposite.

The guide seat 6, the pipeline 13 and the gland 4 are fixedly connected, for example, by adopting a welding scheme. The guide seat 6 is ensured to be sealed with the gland 4 through the first sealing gasket 5 and is ensured to be sealed with the base 12 through the third sealing gasket 11.

The ball seat 7 is fixedly connected with the guide seat 6, a ball body 8 with a through hole is installed in the ball seat 7, and the position of the ball body 8 can be limited through the ball seat 7 during installation. The outer side of the solid wall of the ball body 8 is connected with a valve rod 9, the valve rod 9 penetrates out of the through hole in the side wall of the guide seat 6, and the valve rod 9 can only rotate by taking the axis of the through hole in the side wall as a shaft.

The diameter of the through hole in the ball body 8 is matched with the outer diameter of the plug-in ultrasonic sensor, and the through hole direction of the ball body 8 can be changed by rotating the valve rod 9. When the through hole is vertically upward, the probe of the insertion type ultrasonic sensor 3 can be inserted from the through hole at the center of the gland 4 and penetrates into the pipeline 13 from the mounting hole on the pipeline 13, and when the through hole is rotated to the horizontal direction, the fluid in the pipeline 13 is blocked by the solid wall of the ball 8 and cannot flow out.

Further, the valve rod 9 is externally provided with an extension arm which is connected with the valve rod 9 and has an included angle of 90 degrees, so that force can be applied when the valve rod 9 is rotated.

Further, a receiving end of the insertion type ultrasonic sensor 3 is installed on the base 12 at the other end of the pipeline 13, and probe faces of the transmitting end and the receiving end are inserted into the fluid flowing through the flow pipeline 13 after the receiving end and the transmitting end are installed in place. The included angle between the probe surface of the plug-in ultrasonic sensor 3 and the axis is 30 degrees, the transmitting end is opposite to the two probe surfaces of the receiving end, the transmitting area of ultrasonic waves can be effectively increased, the signal intensity of the ultrasonic waves is enhanced, and the metering precision is improved.

Claims

1. The utility model provides an on-line installation bayonet ultrasonic flowmeter, includes consecutive changer (1), signal line (2) and bayonet ultrasonic sensor (3), its characterized in that, bayonet ultrasonic sensor (3) total two parts divide into sound wave transmitting terminal and receiving terminal, locates pipeline (13) both sides respectively, it has two mounting holes to open on pipeline (13) wall, it has one base (12) to weld respectively on the mounting hole, install guide holder (6) on base (12), guide holder (6) top is equipped with gland (4), be equipped with ball seat (7) in guide holder (6), install a spheroid (8) that have the through-hole in ball seat (7), the solid wall outside of spheroid (8) is connected with valve rod (9), valve rod (9) by the through-hole of guide holder (6) lateral wall is outwards worn out, the probe of the plug-in ultrasonic sensor (3) is inserted into the through hole at the center of the gland (4) and penetrates into the pipeline (13) through the mounting hole in the pipeline (13), and the guide seat (6) is respectively connected with the gland (4), the plug-in ultrasonic sensor (3) and the base (12) in a sealing manner.

2. The on-line installation plug-in ultrasonic flowmeter as claimed in claim 1, wherein the guide seat (6) is a variable diameter hollow tube which can be divided into four sections according to the difference of the inner diameters, the first section cavity is connected with the plug-in ultrasonic sensor (3) through threads from top to bottom, the inner diameter of the second section cavity is larger than that of the first section and is internally fixed with a ball seat (7), a sealing gasket II (10) is arranged in the third section cavity and is connected with the plug-in ultrasonic sensor (3) in a sealing manner, and the inner diameter of the fourth section is the same as that of the second section.

3. An on-line installed inserted ultrasonic flow meter according to claim 1, characterized in that the probe face of the inserted ultrasonic sensor (3) has an angle of 30 ° with the axis, and the two probe faces of the transmitting end and the receiving end are opposite.

4. An in-line installed plug-in ultrasonic flow meter according to claim 1, wherein the base (12) and the pipe (13) are connected by a full weld.

5. An in-line installed plug-in ultrasonic flow meter according to claim 1, characterized in that the diameter of the through hole in the ball (8) matches the external diameter of the plug-in ultrasonic sensor (3).

6. An on-line installed plug-in ultrasonic flowmeter as claimed in claim 1 wherein an extension arm is provided outside the valve stem (9) and connected to the valve stem (9) at an angle of 90 °.