CN210802567U

CN210802567U - Vortex street flowmeter

Info

Publication number: CN210802567U
Application number: CN201922290152.0U
Authority: CN
Inventors: 张爱春
Original assignee: Hongqi Instrument Jiangsu Co ltd
Current assignee: Hongqi Instrument Jiangsu Co ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-06-19
Anticipated expiration: 2029-12-19

Abstract

The utility model relates to the technical field of flowmeters, and discloses a vortex shedding flowmeter, which comprises a measuring pipe device and a telescopic pipe device, wherein the measuring pipe device comprises a bottom pipe, a fixing ring, an air bag, a first clamping plate and a second clamping plate, the left end and the right end of the bottom pipe are fixedly connected with the fixing ring, the inner wall of the right end fixing ring is fixedly connected with the air bag, the inner part of the air bag is provided with the first clamping plate and the second clamping plate, the left end of the first clamping plate is inserted into the fixing ring, the outer wall of the first clamping plate is fixedly connected with the air bag, the two clamping plates are positioned right behind the first clamping plate, the left end of the second clamping plate is inserted into the fixing ring, the outer wall of the second clamping plate is fixedly connected with the air bag, the first fixing blocks are fixedly connected on the outer walls of the upper side and the lower side of the first clamping plate, the vortex shedding flowmeter has the performances of shock absorption, height adjustment and the like.

Description

Vortex street flowmeter

Technical Field

The invention relates to the technical field of flowmeters, in particular to a vortex shedding flowmeter.

Background

The vortex shedding flowmeter is a volume flowmeter for measuring the volume flow of gas, steam or liquid, and the volume flow or mass flow under standard condition, which is researched and produced according to Karman vortex shedding principle, is mainly used for measuring the flow of industrial pipeline medium fluid, such as various media of gas, liquid, steam and the like, and is characterized by small pressure loss, wide range and high precision, little influence of parameters of fluid density, pressure, temperature, viscosity and the like when measuring the volume flow under working condition, no movable mechanical parts, high reliability, small maintenance amount, long-term stable instrument parameters, high reliability due to the adoption of a piezoelectric stress sensor, capability of working in the working temperature range of-20 to +250 ℃, analog standard signals, digital pulse signal output, easiness for being matched with a digital system of a computer and the like, and is a relatively advanced one, An ideal measuring instrument.

At present most vortex shedding flowmeter on the market all avoids using on the great pipeline of vibration, because vortex shedding flowmeter itself receives the influence of vibration more easily, if add and establish on the pipeline of vibration, then need extra to add the device of establishing fixed front and back pipeline, and fixed completion back, because still use fixed mode to carry out the shock attenuation, the position of vibration still can be conducted the vortex shedding flowmeter through rigid connection device on, not only extravagant installation time, and absorbing effect is also not very obvious.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the vortex shedding flowmeter which has the advantages of shock absorption, height adjustment and the like, and solves the problem that most vortex shedding flowmeters in the market have poor shock resistance.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a vortex shedding flowmeter, is including surveying buret set and flexible pipe device, survey buret set and include bottom tube, solid fixed ring, gasbag, splint one and splint two, the solid fixed ring of the equal fixedly connected with in both ends about the bottom tube, right-hand member fixedly connected with gasbag on the solid fixed ring's the inner wall, the inside of gasbag is provided with splint one and splint two, the left end of splint one inserts solid fixed ring inside, the outer wall and the gasbag fixed connection of splint one, splint two are located splint one, the left end of splint two inserts solid fixed ring inside, the outer wall and the gasbag fixed connection of splint two, equal fixedly connected with fixed block one on the upper and lower both sides outer wall of splint one, threaded hole one has been seted up on the fixed block one.

Preferably, equal fixedly connected with fixed block two on the upper and lower both sides outer wall of splint two, fixed block two is in fixed block one positive rear, set up threaded hole two on the fixed block two, threaded hole two is in threaded hole one positive rear, threaded hole two is the same with threaded hole one completely, the inside of threaded hole one is provided with the screw, screw and threaded hole one adaptation, screw and threaded hole two adaptations, survey the pipe fitting and be bilateral symmetry structure.

Preferably, the upside fixedly connected with of bottom tube is flexible pipe device, flexible pipe device includes flowmeter dial plate, flexible pipe box, screw thread one and control tube, the lower extreme and the bottom tube fixed connection of flexible pipe, the inside of flowmeter dial plate communicates with each other with the bottom tube is inside, screw thread one has been seted up to the inside of flexible pipe, flexible intraduct is provided with the control tube, the inside adaptation of control tube and flexible pipe, the inside of control tube communicates with each other with the inside of flexible pipe, screw thread two has been seted up to the outside of control tube, screw thread two and screw thread one adaptation, control tube and flexible pipe carry out swing joint through screw thread one and screw thread two.

Preferably, the upper end of the adjusting pipe is fixedly connected with a connecting ring, the connecting ring is matched with the adjusting pipe, the lower end of the connecting ring is fixedly connected with a telescopic pipe sleeve, the telescopic pipe is sleeved outside the adjusting pipe, the inner diameter of the telescopic pipe sleeve is matched with the outer diameter of the telescopic pipe, the upper surface of the connecting ring is fixedly connected with a flowmeter dial, and the flowmeter dial is communicated with the inside of the connecting ring.

(III) advantageous effects

Compared with the prior art, the invention provides a vortex shedding flowmeter, which has the following beneficial effects:

1. the vortex flowmeter is characterized in that through the design of the air bag, the first clamping plate and the second clamping plate, when the vortex flowmeter is fixed with a pipeline, the pipeline is not directly fixed with the vortex flowmeter, but the inlet of the pipeline is clamped through the first clamping plate and the second clamping plate, then the first clamping plate and the second clamping plate are pulled close to the inlet of the fixed pipeline through the first threaded hole and the first threaded hole by screw connection, the left ends of the first clamping plate and the second clamping plate are inserted into the inside of the fixed ring and are communicated with the inside of the fixed ring, the outer sides of the first clamping plate and the second clamping plate are connected with the fixed ring through the air bag, when the vortex flowmeter is used, the connected pipeline generates vibration, the vibration is transmitted to the first clamping plate and the second clamping plate, but is further transmitted to the bottom pipe, a large amount of vibration effect can be absorbed by the air bag, and the vibration transmitted to the bottom pipe is very small, directly install gasbag, splint one and splint two on vortex flowmeter like this, can increase the degree that vortex flowmeter accepts the vibration, improved vortex flowmeter's application range, and reduced the trouble of extra installation fixing device, improved the convenience of installation vortex flowmeter.

2. The vortex street flowmeter is mainly used for measuring the flow of industrial pipeline medium fluid, generally, an operator can observe specific measurement data through a display screen on a flowmeter dial plate, but due to the difference of measurement pipelines, the working environment in which the vortex street flowmeter is positioned is different, the height and the angle of the vortex street flowmeter are different every time, the problem that the data on the flowmeter dial plate is inconvenient to observe can occur when the operator works, and the condition that the operator is inconvenient to operate can occur, the length of the adjusting pipe in the telescopic pipe can be changed by adjusting a threaded connection structure of the adjusting pipe and the telescopic pipe and rotating a connecting ring, so that the function of extending or shortening the distance of the telescopic pipe device can be achieved, and through the threaded connection of the adjusting pipe and the telescopic pipe, the length of the telescopic pipe device can be changed, and the angle facing direction of the flowmeter dial plate can be changed, the observation device is convenient for workers to observe work, improves the working comfort of the workers and improves the working quality.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the telescopic tube device of the present invention.

In the figure: 1 measuring a tube device, 101 bottom tubes, 102 fixing rings, 103 air bags, 104 clamping plates I, 105 clamping plates II, 106 fixing blocks I, 107 fixing blocks II, 108 threaded holes I, 109 threaded holes II, 110 screws, 2 telescopic tube devices, 201 flow meter dials, 202 telescopic tubes, 203 telescopic tube sleeves, 204 threaded holes I, 205 adjusting tubes, 206 threaded holes II and 207 connecting rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, 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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, a vortex shedding flowmeter comprises a measuring pipe device 1 and a telescopic pipe device 2, wherein the measuring pipe device 1 comprises a bottom pipe 101, a fixing ring 102, an air bag 103, a first clamping plate 104 and a second clamping plate 105, the left end and the right end of the bottom pipe 101 are fixedly connected with the fixing ring 102, the inner wall of the fixing ring 102 at the right end is fixedly connected with the air bag 103, the first clamping plate 104 and the second clamping plate 105 are arranged inside the air bag 103, the left end of the first clamping plate 104 is inserted into the fixing ring 102, the outer wall of the first clamping plate 104 is fixedly connected with the air bag 103, the second clamping plate 105 is positioned right behind the first clamping plate 104, the left end of the second clamping plate 105 is inserted into the fixing ring 102, the outer wall of the second clamping plate 105 is fixedly connected with the air bag 103, the outer walls at the upper;

the outer walls of the upper side and the lower side of the second clamping plate 105 are fixedly connected with a second fixing block 107, the second fixing block 107 is arranged right behind a first fixing block 106, a second threaded hole 109 is formed in the second fixing block 107, the second threaded hole 109 is arranged right behind a first threaded hole 108, the second threaded hole 109 and the first threaded hole 108 are completely identical, a screw 110 is arranged inside the first threaded hole 108, the screw 110 is matched with the second threaded hole 109, the screw 110 is used for fixing the first clamping plate 104 and the second clamping plate 105, the measuring pipe device 1 is of a bilateral symmetry structure, the arrangement of the left end and the right end of the measuring pipe device 1 is completely symmetrical and identical, the upper side of the bottom pipe 101 is fixedly connected with a telescopic pipe device 2, the telescopic pipe device 2 comprises a flow meter dial 201, a telescopic pipe 202, a telescopic pipe sleeve 203, a first threaded hole 204 and, the inner part of the telescopic pipe 202 is provided with a first thread 204, the inner part of the telescopic pipe 202 is provided with an adjusting pipe 205, the adjusting pipe 205 is matched with the inner part of the telescopic pipe 202, the inner part of the adjusting pipe 205 is communicated with the inner part of the telescopic pipe 202, the outer side of the adjusting pipe 205 is provided with a second thread 206, the second thread 206 is matched with the first thread 204, and the adjusting pipe 205 is movably connected with the telescopic pipe 202 through the first thread 204 and the second thread 206;

the upper end of the adjusting pipe 205 is fixedly connected with a connecting ring 207, the connecting ring 207 is matched with the adjusting pipe 205, the lower end of the connecting ring 207 is fixedly connected with a telescopic pipe sleeve 203, the telescopic pipe sleeve 203 is arranged on the outer side of the adjusting pipe 205, the inner diameter of the telescopic pipe sleeve 203 is matched with the outer diameter of the telescopic pipe 202, when the adjusting pipe 205 is in threaded connection with the telescopic pipe 202, the telescopic pipe sleeve 203 is arranged on the outer side of the telescopic pipe 202, the upper surface of the connecting ring 207 is fixedly connected with a flowmeter dial 201, and the flowmeter dial 201 is communicated with the inside of.

When in use, the utility model is used,

the first step is as follows: through the design of the air bag 103, the first clamping plate 104 and the second clamping plate 105, when the vortex flowmeter is fixed with a pipeline, the pipeline is not directly fixed with the vortex flowmeter, but the inlet of the pipeline is clamped through the first clamping plate 104 and the second clamping plate 105, then the first clamping plate 104 and the second clamping plate 105 are pulled close to the inlet of the fixed pipeline by connecting the first threaded hole 108 and the first threaded hole 108 through the screw 110, the left ends of the first clamping plate 104 and the second clamping plate 105 are inserted into the inner part of the fixed ring 102 and are communicated with the inner part of the fixed ring 102, the outer sides of the first clamping plate 104 and the second clamping plate 105 are connected with the fixed ring 102 through the air bag 103, when the connected pipeline vibrates in use of the vortex flowmeter, the vibration is transmitted to the first clamping plate 104 and the second clamping plate 105, but is further transmitted to the bottom pipe 101, a large amount of vibration effect can be absorbed by the air bag 103, the vibration conducted to the bottom pipe 101 is very small, so that the air bag 103, the first clamping plate 104 and the second clamping plate 105 are directly arranged on the vortex shedding flowmeter, the vibration receiving degree of the vortex shedding flowmeter can be increased, the application range of the vortex shedding flowmeter is enlarged, the trouble of additionally installing a fixing device is reduced, and the convenience of installing the vortex shedding flowmeter is improved.

The second step is that: the vortex street flowmeter is mainly used for measuring the flow rate of medium fluid of an industrial pipeline, generally, an operator can observe specific measurement data through a display screen on a flowmeter dial 201, but different measurement pipelines have different working environments, the installation height and angle of the vortex street flowmeter are different every time, the problem that the data on the flowmeter dial 201 is inconvenient to observe may occur when the operator works, and the condition that the operator is inconvenient to operate may occur, the length of the adjusting pipe 205 inside the telescopic pipe 202 can be changed through a threaded connection structure of the adjusting pipe 205 and the telescopic pipe 202 and through the rotation of the connecting ring 207, so that the function of extending or shortening the distance of the telescopic pipe device 2 can be achieved, and the length of the telescopic pipe device 2 can be changed through the threaded connection of the adjusting pipe 205 and the telescopic pipe 202, the direction angle of the dial 201 of the flowmeter can be changed, so that workers can conveniently observe the flowmeter, the working comfort of the workers is improved, and the working quality is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a vortex shedding flowmeter, is including surveying buret set (1) and flexible pipe device (2), survey buret set (1) and include bottom tube (101), solid fixed ring (102), gasbag (103), splint one (104) and splint two (105), the equal fixedly connected with in both ends solid fixed ring (102), its characterized in that about bottom tube (101): the right-hand member fixedly connected with gasbag (103) on the inner wall of solid fixed ring (102), the inside of gasbag (103) is provided with splint one (104) and splint two (105), the left end of splint one (104) inserts solid fixed ring (102) inside, the outer wall and gasbag (103) fixed connection of splint one (104), splint two (105) are located splint one (104) directly behind, the left end of splint two (105) inserts solid fixed ring (102) inside, the outer wall and gasbag (103) fixed connection of splint two (105), equal fixedly connected with fixed block one (106) on the upper and lower both sides outer wall of splint one (104), screw hole one (108) has been seted up on fixed block one (106).

2. The vortex shedding flowmeter of claim 1, wherein: equal fixedly connected with fixed block two (107) on the upper and lower both sides outer wall of splint two (105), fixed block two (107) are in the positive rear of fixed block one (106), set up threaded hole two (109) on fixed block two (107), threaded hole two (109) are in the positive rear of threaded hole one (108), threaded hole two (109) and threaded hole one (108) are identical, the inside of threaded hole one (108) is provided with screw (110), screw (110) and threaded hole one (108) adaptation, screw (110) and threaded hole two (109) adaptation, survey buret device (1) and be the bilateral symmetry structure.

3. The vortex shedding flowmeter of claim 1, wherein: the upper side of the bottom pipe (101) is fixedly connected with a telescopic pipe device (2), the telescopic pipe device (2) comprises a flowmeter dial plate (201), a telescopic pipe (202), a telescopic pipe sleeve (203), a first thread (204) and an adjusting pipe (205), the lower end of the telescopic pipe (202) is fixedly connected with the bottom pipe (101), the inside of the flowmeter dial plate (201) is communicated with the inside of the bottom pipe (101), a first thread (204) is arranged inside the telescopic pipe (202), an adjusting pipe (205) is arranged inside the telescopic pipe (202), the adjusting pipe (205) is matched with the interior of the telescopic pipe (202), the interior of the adjusting pipe (205) is communicated with the interior of the telescopic pipe (202), a second thread (206) is arranged on the outer side of the adjusting pipe (205), the second thread (206) is matched with the first thread (204), the adjusting pipe (205) and the telescopic pipe (202) are movably connected through a first thread (204) and a second thread (206).

4. A vortex shedding flowmeter according to claim 3, wherein: the upper end of the adjusting pipe (205) is fixedly connected with a connecting ring (207), the connecting ring (207) is matched with the adjusting pipe (205), the lower end of the connecting ring (207) is fixedly connected with a telescopic pipe sleeve (203), the telescopic pipe sleeve (203) is arranged on the outer side of the adjusting pipe (205), the inner diameter of the telescopic pipe sleeve (203) is matched with the outer diameter of the telescopic pipe (202), the upper surface of the connecting ring (207) is fixedly connected with a flowmeter dial (201), and the flowmeter dial (201) is communicated with the inside of the connecting ring (207).