CN216717480U

CN216717480U - Vortex shedding flowmeter sensor with backflow prevention function

Info

Publication number: CN216717480U
Application number: CN202220314830.1U
Authority: CN
Inventors: 任书敏
Original assignee: Qingdao Xinkaibo Automation Equipment Co ltd
Current assignee: Qingdao Xinkaibo Automation Equipment Co ltd
Priority date: 2022-02-16
Filing date: 2022-02-16
Publication date: 2022-06-10
Anticipated expiration: 2032-02-16

Abstract

The utility model relates to the technical field of vortex street flowmeters, in particular to a vortex street flowmeter sensor with a backflow prevention function, which comprises a pipe body, the inner part of the tube body is provided with a non-return component, the circumferential outer wall of the tube body is inserted with a connecting rod, the circumferential outer wall of the tube body is fixedly connected with a sealing seat, one end of the connecting rod penetrates through the sealing seat, one end of the connecting rod is fixedly connected with a piezoelectric detection probe, the inside of the tube body is provided with a vortex generating body, the cross section of the vortex generating body is isosceles trapezoid, in the utility model, when the liquid or gas delivery is stopped in the pipeline, a worker can hold the handle by hand and rotate the handle, the ball body can be driven to rotate by rotating the handle until one side of the ball body is contacted with the sealing seat, thereby can guarantee body internal seal, the effectual condition that has prevented liquid or gas to appear flowing back and influence vortex shedding flowmeter sensor and detect the precision takes place.

Description

Vortex shedding flowmeter sensor with backflow prevention function

Technical Field

The utility model relates to the technical field of vortex shedding flowmeters, in particular to a vortex shedding flowmeter sensor with a backflow prevention function.

Background

The vortex shedding flowmeter sensor is a volume flowmeter which is produced according to the Karman vortex shedding principle and used for measuring the volume flow, the standard condition volume flow or the mass flow of gas, steam or liquid. The flow meter is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media of gas, liquid, steam and the like.

The existing vortex shedding flowmeter sensor is not provided with a non-return mechanism inside in the using process, so that when gas or liquid inside a pipeline stops gas transmission or liquid transmission, the gas or liquid at the front end of the pipeline easily flows back, and when the gas or liquid flows back inside the pipeline, the measuring result of the vortex shedding flowmeter sensor is easy to have errors, so that the using requirements of people cannot be met. Therefore, a vortex shedding flowmeter sensor with backflow prevention function is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a vortex shedding flowmeter sensor with a backflow prevention function, so as to solve the problems in the background technology.

The technical scheme of the utility model is as follows: the utility model provides a vortex shedding flowmeter sensor with anti-return function, includes the body, the inside of body sets up the non return subassembly, the circumference outer wall of body is pegged graft and is had the connecting rod, the circumference outer wall fixedly connected with seal receptacle of body, the one end of connecting rod is followed the inside of seal receptacle is passed, the one end fixedly connected with piezoelectricity test probe of connecting rod, the inside of body is provided with the vortex generating body, the cross section of vortex generating body is isosceles trapezoid, the inside of vortex generating body is provided with locating component, the one end of connecting rod is provided with the converter.

Preferably, the non return subassembly including set up in the sealing washer of body circumference inner wall, the circumference outer wall of body is pegged graft and is had the valve rod, the circumference outer wall fixedly connected with spreader of valve rod, the spreader is kept away from the one end fixedly connected with handle of valve rod, the valve rod is kept away from the one end fixedly connected with spheroid of spreader, the through-hole has been seted up to spheroidal one side, spheroidal circumference outer wall with one side outer wall of sealing washer contacts.

Preferably, the two ends of the pipe body are provided with flange plates, and the circumferential outer wall of each flange plate is provided with a positioning hole.

Preferably, the circumference inner wall of body has seted up the spout, locating component with the spout forms sliding connection.

Preferably, the positioning assembly comprises fixing grooves formed at two ends of the vortex generating body, an elastic assembly is arranged inside each fixing groove, a sliding block is fixedly connected to one end of each elastic assembly, and each sliding block and the corresponding sliding groove form sliding connection.

Preferably, the elastic component comprises a telescopic rod fixedly connected to the inner wall of the bottom of the fixed slot, and a spring is sleeved on the outer circumferential wall of the telescopic rod.

The utility model provides a vortex shedding flowmeter sensor with backflow prevention function through improvement, compared with the prior art, the vortex shedding flowmeter sensor has the following improvements and advantages:

one is as follows: according to the utility model, through the arranged non-return assembly, when the liquid or gas is stopped to be conveyed in the pipeline, a worker can hold and rotate the handle, and the handle can be rotated to drive the ball body to rotate until one side of the ball body is contacted with the sealing seat, so that the internal sealing of the pipe body can be ensured, and the condition that the detection precision of the vortex flowmeter sensor is influenced by the backflow of the liquid or gas is effectively prevented;

the second step is as follows: according to the vortex shedding body, due to the arrangement of the positioning assembly and the elastic assembly, in the process of installing the vortex shedding body, a worker can press the sliding block and place the sliding block in the sliding groove, then the worker pushes the sliding block until the sliding block is contacted with the inner wall of one side of the sliding groove, so that the installation work of the worker is facilitated, the vortex shedding body can be kept stable in the pipe body through the elastic force of the spring, and when the vortex shedding body is required to be cleaned or replaced after being used for a long time, the vortex shedding body can be directly pulled out of the pipe body, so that the disassembly work of the worker is facilitated.

Drawings

The utility model is further explained below with reference to the figures and examples:

FIG. 1 is a schematic overall perspective view of the present invention;

FIG. 2 is a schematic overall plan sectional structural view of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 2 at A according to the present invention;

FIG. 4 is a schematic view showing a split structure of the vortex generating body according to the present invention.

Description of reference numerals:

1. a pipe body; 2. a flange plate; 3. positioning holes; 4. a handle; 5. a cross post; 6. a valve stem; 7. a converter; 8. a connecting rod; 9. a chute; 10. a vortex generating body; 11. a sphere; 12. a through hole; 13. a seal ring; 14. a sealing seat; 15. a slider; 16. a spring; 17. fixing grooves; 18. a telescopic rod; 19. a piezoelectric detection probe.

Detailed Description

The present invention is described in detail below, and technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The utility model provides a vortex shedding flowmeter sensor with backflow prevention function through improvement, and the technical scheme of the utility model is as follows:

as shown in fig. 1-4, a vortex shedding flowmeter sensor with backflow prevention function, including a pipe body 1, a non-return component is arranged inside the pipe body 1, a connecting rod 8 is inserted into the circumferential outer wall of the pipe body 1, a sealing seat 14 is fixedly connected to the circumferential outer wall of the pipe body 1, one end of the connecting rod 8 passes through the sealing seat 14, a piezoelectric detection probe 19 is fixedly connected to one end of the connecting rod 8, a vortex generator 10 is arranged inside the pipe body 1, the cross section of the vortex generator 10 is isosceles trapezoid, a positioning component is arranged inside the vortex generator 10, and a converter 7 is arranged at one end of the connecting rod 8.

Further, the non return subassembly is including setting up in the sealing washer 13 of 1 circumference inner wall of body, the circumference outer wall of body 1 is pegged graft and is had valve rod 6, the circumference outer wall fixedly connected with spreader 5 of valve rod 6, the one end fixedly connected with handle 4 of valve rod 6 is kept away from to spreader 5, through-hole 12 has been seted up to one side of spheroid 11, the circumference outer wall of spheroid 11 contacts with one side outer wall of sealing washer 13, the staff can hand and rotate handle 4 when the pipeline is inside to stop to liquid or gaseous transport, can drive spheroid 11 to rotate until its one side contacts with seal receptacle 14 through rotating handle 4, thereby can guarantee 1 internal seal of body, the effectual condition that liquid or gaseous backward flow influence vortex street flowmeter sensor that appears takes place.

Further, the two ends of the pipe body 1 are provided with flange plates 2, the outer wall of the circumference of each flange plate 2 is provided with a positioning hole 3, and the set flange plates 2 can facilitate workers to connect the vortex shedding flowmeter sensor with a pipeline to be detected.

Further, the circumference inner wall of body 1 has seted up spout 9, and locating component and spout 9 form sliding connection.

Furthermore, the positioning assembly comprises fixing grooves 17 formed at two ends of the vortex generating body 10, an elastic assembly is arranged inside the fixing grooves 17, a sliding block 15 is fixedly connected to one end of the elastic assembly, and the sliding block 15 and the sliding groove 9 form sliding connection.

Further, elastic component includes the telescopic link 18 of fixed connection at fixed slot 17 bottom inner wall, the circumference outer wall of telescopic link 18 has cup jointed spring 16, the in-process staff at the installation of vortex generating body 10 can at first press slider 15 and place it inside spout 9, staff promotes slider 15 afterwards until its one side inner wall with spout 9 contacts, the installation work of staff has been made things convenient for, elasticity through spring 16 can make vortex generating body 10 keep stable inside body 1 this moment, can directly take it out from body 1 inside when vortex flowmeter sensor needs clean or change vortex generating body 10 through long-term use, the dismantlement work of staff has been made things convenient for.

The working principle is as follows: when the liquid or gas is not conveyed in the pipeline, a worker can hold and rotate the handle 4, the ball body 11 can be driven to rotate by rotating the handle 4 until one side of the ball body is contacted with the sealing seat 14, so that the internal sealing of the pipe body 1 can be ensured, the situation that the detection precision of the vortex shedding flowmeter sensor is influenced by the backflow of the liquid or gas is effectively prevented, the worker can firstly press the slider 15 and place the slider 15 in the chute 9 in the installation process of the vortex shedding body 10, then the worker pushes the slider 15 until the slider is contacted with the inner wall of one side of the chute 9, the installation work of the worker is convenient, the vortex shedding body 10 can be kept stable in the pipe body 1 by the elasticity of the spring 16, and the vortex shedding flowmeter sensor can be directly extracted from the inside of the pipe body 1 when the vortex shedding flowmeter sensor is required to clean or replace the vortex shedding body 10 after long-term use, the disassembly work of workers is facilitated.

Claims

1. The utility model provides a vortex shedding flowmeter sensor with anti-return function which characterized in that: including body (1), the inside of body (1) sets up the non return subassembly, the circumference outer wall of body (1) is pegged graft and is had connecting rod (8), the circumference outer wall fixedly connected with seal receptacle (14) of body (1), the one end of connecting rod (8) is followed the inside of seal receptacle (14) is passed, the one end fixedly connected with piezoelectricity test probe (19) of connecting rod (8), the inside of body (1) is provided with vortex generating body (10), the cross section of vortex generating body (10) is isosceles trapezoid, the inside of vortex generating body (10) is provided with locating component, the one end of connecting rod (8) is provided with converter (7).

2. The vortex shedding flowmeter sensor with backflow prevention function according to claim 1, wherein: the non return subassembly including set up in body (1) circumference inner wall's sealing washer (13), the circumference outer wall of body (1) is pegged graft and is had valve rod (6), the circumference outer wall fixedly connected with spreader (5) of valve rod (6), spreader (5) are kept away from the one end fixedly connected with handle (4) of valve rod (6), valve rod (6) are kept away from the one end fixedly connected with spheroid (11) of spreader (5), through-hole (12) have been seted up to one side of spheroid (11), the circumference outer wall of spheroid (11) with one side outer wall of sealing washer (13) contacts.

3. The vortex shedding flowmeter sensor with backflow prevention function according to claim 1, wherein: the two ends of the pipe body (1) are provided with flange plates (2), and positioning holes (3) are formed in the outer wall of the circumference of each flange plate (2).

4. The vortex shedding flowmeter sensor with backflow prevention function according to claim 1, wherein: the circumference inner wall of body (1) has seted up spout (9), locating component with spout (9) form sliding connection.

5. The vortex shedding flowmeter sensor with backflow prevention function according to claim 4, wherein: the positioning assembly comprises fixing grooves (17) formed in two ends of the vortex generating body (10), an elastic assembly is arranged inside each fixing groove (17), a sliding block (15) is fixedly connected to one end of each elastic assembly, and each sliding block (15) is in sliding connection with the corresponding sliding groove (9).

6. The vortex shedding flowmeter sensor with backflow prevention function according to claim 5, wherein: the elastic component comprises an expansion link (18) fixedly connected to the inner wall of the bottom of the fixing groove (17), and a spring (16) is sleeved on the outer circumferential wall of the expansion link (18).