CN216012363U

CN216012363U - Matrix type flue gas flowmeter

Info

Publication number: CN216012363U
Application number: CN202121683877.7U
Authority: CN
Inventors: 黄飞; 周健; 韦振祖; 卢承政; 张庆文
Original assignee: Xian Thermal Power Research Institute Co Ltd; Suzhou Xire Energy Saving Environmental Protection Technology Co Ltd
Current assignee: Xian Thermal Power Research Institute Co Ltd; Suzhou Xire Energy Saving Environmental Protection Technology Co Ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-03-11
Anticipated expiration: 2031-07-23

Abstract

The utility model relates to a matrix type flue gas flowmeter, which comprises a flowmeter body, a flowmeter tube and a protective cylinder, wherein the flowmeter body is communicated with the flowmeter tube, the flowmeter tube is provided with a first tube section and a second tube section which are used for being connected with a pipeline to be detected, the end parts of the first tube section and the second tube section are respectively connected with a flange, the protective cylinder is arranged on the first tube section and the second tube section and used for coating the flanges, the flowmeter also comprises a lantern ring, the lantern ring is sleeved on the first tube section and the second tube section and can move along the axial direction of the first tube section and the second tube section, the protective cylinder comprises a cylinder body and a sealing sheet, one side of the cylinder body is connected with the lantern ring, the sealing sheet is rotatably connected to the other side of the cylinder body, and in the coating state: the cylinder body coats one side and the peripheral surface of the flange, and the sealing sheet coats the other side of the flange. The utility model improves the flexibility of the sealing process, increases the sealing performance of flange connection, realizes the integral protection of the flange, avoids the connection looseness after the flange is directly exposed in the air and corroded, and has simple structure and convenient operation.

Description

Matrix type flue gas flowmeter

Technical Field

The utility model belongs to the technical field of flow measurement, and particularly relates to a matrix type smoke flowmeter.

Background

Flow meters are meters that indicate the measured flow rate and/or the total amount of fluid in a selected time interval, and are simply meters used to measure the flow rate of fluid in a pipe or open channel. The matrix flowmeter adopts a target flowmeter principle, so that the characteristics of durability, practicability, long service life and the like of the vn series flowmeter are ensured, and the advantages of high measurement precision and good stability of the vn series flowmeter are obtained. When the flue gas flows in the survey buret, because of its self kinetic energy and target plate produce pressure differential, and produce the effort to the target plate, make the target plate produce micro displacement, the size of its effort is directly proportional with the square of medium velocity of flow, and the effort that the target plate received makes the elastomer of sensor produce the micro-change through the transmission, through circuit conversion, outputs corresponding signal of telecommunication, therefore reachs the concrete numerical value of flow.

The matrix flowmeter usually adopts a flange to be connected with a pipeline, but the problem of fluid leakage easily occurs when the flange joint is loosened or not tightly connected.

Refer to chinese patent with publication number CN212903421U, which discloses a gas flowmeter with good sealing performance, comprising a gas flowmeter body, wherein an air inlet and an air outlet are respectively arranged at two sides of the bottom end of the gas flowmeter body, a groove is arranged at the outer end of the air inlet, an insert block is inserted at the outer side of the groove, a sealing gasket is connected at the left side of the insert block, a first flange and a second flange at the outer sides of the air inlet and the air outlet are connected through a bolt, and a protective cover is arranged at the outer side of the bolt. The device has strengthened sealing performance, has improved the accuracy among the measurement process to the protection to the bolt has been realized. However, the protective cover of the device is inconvenient to disassemble and assemble, cannot move freely, is inconvenient to operate, does not realize complete sealing between flanges, and still can cause the situation of fluid leakage in the measuring process.

Disclosure of Invention

The utility model aims to provide a matrix type smoke flowmeter which is used for solving the problem that fluid is easy to leak when a flange joint is not tight.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a matrix flue gas flowmeter for connect and wait to detect between the pipeline, including flowmeter body, flowmeter pipe and a protection section of thick bamboo, the flowmeter body with the flowmeter pipe be linked together, the flowmeter pipe have be used for with wait to detect first pipeline section, the second pipeline section that the pipeline is connected, the tip of first pipeline section, second pipeline section all be connected with the flange, a protection section of thick bamboo set up first pipeline section, second pipeline section on be used for with the flange cladding, the flowmeter still include the lantern ring, the lantern ring cover establish first pipeline section, second pipeline section on, just the lantern ring can first pipeline section, second pipeline section on along its axial displacement, a protection section of thick bamboo include a body, a seal, one side of a body with the lantern ring connect, the seal rotate and connect in the opposite side of a body, in the coated state: the cylinder body coats one side and the peripheral surface of the flange, and the sealing sheet coats the other side of the flange.

Preferably, the collar is in threaded connection with the first pipe section and the second pipe section.

Preferably, the outer circumferential surface of the flow meter pipe is provided with an external thread, the inner circumferential surface of the lantern ring is provided with an internal thread, and the internal thread and the external thread are matched with each other.

Preferably, an annular groove is formed in the surface of one side of the cylinder body, a protruding block is arranged on the surface of the lantern ring, and the groove and the protruding block are in matched connection, so that the cylinder body can rotate around the axis of the flow meter pipe.

Preferably, the sealing piece comprises a first sealing piece and a second sealing piece, and the first sealing piece and the second sealing piece are rotatably connected with the other side of the cylinder body.

Preferably, the surfaces of the first sealing sheet and the second sealing sheet are provided with operation parts for rotating the first sealing sheet and the second sealing sheet. The operation part is convenient for quick operation in the process of disassembly and assembly.

Preferably, the first sealing sheet and the second sealing sheet are both provided with notch portions, and the notch portions of the first sealing sheet and the notch portions of the second sealing sheet jointly enclose a hole allowing a pipeline to be detected to pass through.

Preferably, the protective cylinder further comprises a sealing strip, and the sealing strip is arranged in the gap part of the first sealing sheet and the second sealing sheet. The sealing strip can improve the sealing performance between the first sealing sheet and the second sealing sheet and the pipeline to be detected.

Preferably, the protective cylinder further comprises a sealing gasket, and the sealing gasket is arranged on the inner wall of the cylinder body. The sealing gasket can improve the sealing property between the cylinder body and the flange.

Preferably, the flowmeter still include the direction subassembly, the direction subassembly include fixed block, guiding axle, guide block, the fixed block connect in the flowmeter pipe on, the guiding axle connect in the both ends of fixed block, and follow the moving direction extension of lantern ring, the guide block remove the setting in the guiding axle on, and with a section of thick bamboo body coupling.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the movable protective cylinder and the sealing piece are arranged, so that the integral cladding and sealing of the flange are realized, the problem that fluid is easy to leak when the flange joint is not tight is solved, the flexibility of the sealing process is improved, the sealing performance of the flange joint is improved, the accuracy of the measurement data of the flowmeter is ensured, the integral protection of the flange is realized, the flange is prevented from being corroded after being directly exposed in the air, the connection looseness is avoided, the structure is simple, and the operation is convenient.

Drawings

FIG. 1 is a schematic front view of the structure of the flue gas flowmeter of the present embodiment;

FIG. 2 is a schematic cross-sectional view of the collar and shield cylinder of the present embodiment;

fig. 3 is a schematic side view of the structure of the flue gas flowmeter of the present embodiment.

In the above drawings: 1. a flue gas flow meter; 11. a flowmeter body; 12. a flow meter pipe; 121. a first tube section; 122. a second tube section; 13. a protective cylinder; 131. a cartridge body; 132. sealing a sheet; 1321. a first sealing sheet; 1322. a second sealing sheet; 1323. an operation section; 1324. a notch portion; 133. a sealing strip; 134. a gasket; 14. a collar; 15. a guide assembly; 151. a fixed block; 152. a guide shaft; 153. a guide block; 2. a pipeline to be detected; 3. and (4) a flange.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides a matrix gas flowmeter, as shown in fig. 1, gas flowmeter 1 connects and waits to detect between the pipeline 2 for measure and wait to detect the fluid flow in the pipeline 2, gas flowmeter 1 includes flowmeter body 11, flowmeter pipe 12, a protection section of thick bamboo 13, lantern ring 14, direction subassembly 15, wherein:

flowmeter body 11 sets up the middle part upside at flowmeter pipe 12, and flowmeter body 11 is linked together with flowmeter pipe 12, and flowmeter pipe 12's both ends all are connected with flange 3, and a protection section of thick bamboo 13 and lantern ring 14 are all movably set up in flowmeter pipe 12's both sides, and a protection section of thick bamboo 13 is used for 3 cladding flanges, and guide assembly 15 sets up the downside at flowmeter pipe 12 and a protection section of thick bamboo 13 to remove the in-process at a protection section of thick bamboo 13 and play the guide effect, specifically:

the flow meter pipe 12 comprises a first pipe section 121 and a second pipe section 122, the first pipe section 121 and the second pipe section 122 are respectively arranged at two ends of the flow meter pipe 12, one end of the first pipe section 121 and one end of the second pipe section 122 are communicated with the pipeline 2 to be detected through flanges 3, and external threads are arranged on the peripheral surfaces of the first pipe section 121 and the second pipe section 122.

The lantern ring 14 is sleeved on the first pipe section 121 and the second pipe section 122, the lantern ring 14 is in threaded connection with the first pipe section 121 and the second pipe section 122, internal threads are arranged on the inner circumferential surface of the lantern ring 14, and the internal threads of the lantern ring 14 are matched with the external threads of the first pipe section 121 and the second pipe section 122, so that the lantern ring 14 can move on the first pipe section 121 and the second pipe section 122 along the axial direction of the first pipe section 121 and the second pipe section 122.

The protective cylinder 13 is sleeved on the first pipe section 121 and the second pipe section 122, and the protective cylinder 13 is movably connected with the lantern ring 14, as shown in fig. 2, the lantern ring 14 can drive the protective cylinder 13 to move on the first pipe section 121 and the second pipe section 122, and cover the flange 3. The protective cylinder 13 comprises a cylinder body 131, a sealing piece 132, a sealing strip 133 and a sealing gasket 134, one side of the cylinder body 131 is connected with the lantern ring 14, the sealing piece 132 is rotatably connected to the other side of the cylinder body 131, the sealing strip 133 is arranged on the sealing piece 132, and the sealing gasket 134 is arranged inside the cylinder body 131, specifically:

an annular groove is formed in the surface of one side of the cylinder body 131, a bump is arranged on the surface of the lantern ring 14, and the groove and the bump are in fit connection, so that the cylinder body 131 can rotate around the axes of the first pipe section 121 and the second pipe section 122.

The sealing piece 132 includes a first sealing piece 1321 and a second sealing piece 1322, as shown in fig. 3, the first sealing piece 1321 and the second sealing piece 1322 are both rotatably connected to the other side of the barrel body 131. The surfaces of the first sealing sheet 1321 and the second sealing sheet 1322 are provided with operating parts 1323 for rotating the first sealing sheet 1321 and the second sealing sheet 1322, and the operating parts 1323 are convenient for quick operation in the assembling and disassembling process. The first sealing piece 1321 and the second sealing piece 1322 are both provided with a notch 1324, and the notch 1324 of the first sealing piece 1321 and the notch 1324 of the second sealing piece 1322 enclose a hole for allowing the pipe 2 to be detected to pass through, in this embodiment: the first sealing piece 1321 and the second sealing piece 1322 are both semi-annular, the first sealing piece 1321 and the second sealing piece 1322 are rotatably connected with the other side of the barrel body 131 through a rotating shaft positioned in the middle, the first sealing piece 1321 and the second sealing piece 1322 can be enclosed together to form an annular shape and enable the pipeline 2 to be detected to pass through, and the operating part 1323 is a groove formed in the surfaces of the first sealing piece 1321 and the second sealing piece 1322.

The sealing strip 133 is arranged in the notch portions of the first sealing sheet 1321 and the second sealing sheet 1322, and the sealing strip 133 can improve the sealing performance between a hole formed by enclosing the notch portions of the first sealing sheet 1321 and the second sealing sheet 1322 and the pipeline 2 to be detected, so that fluid is prevented from leaking in the working process. The weather strip 133 is attached by gluing to the notches of the first flap 1321 and the second flap 1322.

The packing 134 is provided on the inner wall of the cylinder body 131, and the packing 134 can improve the sealability between the cylinder body 131 and the flange 3. The packing 134 is disposed on the inner wall of the cartridge body 131 by gluing.

The guide assembly 15 is used for playing a guiding role in the moving process of the protective cylinder 13, the guide assembly 15 comprises a fixing block 151, a guide shaft 152 and a guide block 153, the fixing block 151 is connected to the lower side of the middle of the flow meter pipe 12, the guide shaft 152 is fixedly connected to two ends of the fixing block 151 and extends along the moving direction of the lantern ring 14, the guide block 153 is connected to the cylinder body 131, a through hole is formed in the guide block 153, the guide shaft 152 penetrates through the through hole in the guide block 153, and the guide block 153 can move axially along the guide shaft 152.

In the working process of the embodiment:

connecting the flue gas flowmeter 1 between the pipelines 2 to be detected through flanges 3 at two ends of the flue gas flowmeter 1; the lantern ring 14 arranged on the first pipe section 121 and the second pipe section 122 is rotated, the lantern ring 14 moves towards the flange 3 through the threaded fit between the lantern ring 14 and the first pipe section 121 and the second pipe section 122, and the lantern ring 14 is connected with the protective cylinder 13, so that the protective cylinder 13 can be driven to move towards the flange 3; in the moving process, the first sealing sheet 1321 and the second sealing sheet 1322 are kept in an unconfined state, and the guide assembly 15 arranged on the flow meter tube 12 and the protective barrel 13 can play a role in guiding, so that the protective barrel 13 is prevented from rotating in the moving process; after the flange 3 completely enters the interior of the protection cylinder 13, the first sealing piece 1321 and the second sealing piece 1322 are rotated through the operating part 1323, so that the first sealing piece 1321 and the second sealing piece 1322 are enclosed and combined into a ring shape, and a seal is formed among the first sealing piece 1321, the second sealing piece 1322 and the pipeline 2 to be detected, and the first sealing piece 1321, the second sealing piece 1322 and the pipeline 2 to be detected enter a coating state; in the coated state: the cylinder main body 131 sealingly covers the outer peripheral surface of the flange 3 and one side of the flange 3, and the first sealing piece 1321 and the second sealing piece 1322 sealingly cover the other side of the flange 3.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a matrix flue gas flowmeter for connect and wait to detect between the pipeline, including flowmeter body, flowmeter pipe and a protection section of thick bamboo, the flowmeter body with the flowmeter pipe be linked together, the flowmeter pipe have be used for with wait to detect first pipeline section, the second pipeline section that the pipeline is connected, the tip of first pipeline section, second pipeline section all be connected with the flange, a protection section of thick bamboo set up first pipeline section, second pipeline section on be used for with the flange cladding, its characterized in that: the flowmeter still include the lantern ring, the lantern ring cover establish first pipeline section, second pipeline section on, just the lantern ring can first pipeline section, second pipeline section on along its axial displacement, the protective cylinder include a section of thick bamboo body, a mounting sheet, one side of a section of thick bamboo body with the lantern ring be connected, the mounting sheet rotate to be connected the opposite side of a section of thick bamboo body, under the cladding state: the cylinder body coats one side and the peripheral surface of the flange, and the sealing sheet coats the other side of the flange.

2. The matrix smoke flow meter according to claim 1, wherein: the lantern ring is connected with the first pipe section and the second pipe section through threads.

3. The matrix smoke flow meter according to claim 2, wherein: the flowmeter is characterized in that an external thread is arranged on the outer peripheral surface of the flowmeter pipe, an internal thread is arranged on the inner peripheral surface of the lantern ring, and the internal thread and the external thread are matched with each other.

4. The matrix smoke flow meter according to claim 1, wherein: the flow meter is characterized in that an annular groove is formed in the surface of one side of the cylinder body, a convex block is arranged on the surface of the lantern ring, and the groove is connected with the convex block in a matched mode, so that the cylinder body can rotate around the axis of the flow meter pipe.

5. The matrix smoke flow meter according to claim 1, wherein: the sealing sheet comprises a first sealing sheet and a second sealing sheet, and the first sealing sheet and the second sealing sheet are rotatably connected with the other side of the cylinder body.

6. The matrix smoke flow meter according to claim 5, wherein: the surface of the first sealing sheet and the surface of the second sealing sheet are provided with operation parts for rotating the first sealing sheet and the second sealing sheet.

7. The matrix smoke flow meter according to claim 5, wherein: the first sealing piece and the second sealing piece are provided with notch parts, and the notch parts of the first sealing piece and the second sealing piece enclose a hole allowing a pipeline to be detected to pass through.

8. The matrix smoke flow meter according to claim 5, wherein: the protective cylinder further comprises a sealing strip, and the sealing strip is arranged in the gap parts of the first sealing sheet and the second sealing sheet.

9. The matrix smoke flow meter according to claim 1, wherein: the protective cylinder also comprises a sealing gasket, and the sealing gasket is arranged on the inner wall of the cylinder body.

10. The matrix smoke flow meter according to claim 1, wherein: the flowmeter further comprises a guide assembly, the guide assembly comprises a fixed block, a guide shaft and a guide block, the fixed block is connected to the flowmeter pipe, the guide shaft is connected to two ends of the fixed block and extends along the moving direction of the lantern ring, and the guide block is movably arranged on the guide shaft and connected with the cylinder body.