Flowmeter for high-temperature fluid pipeline
By using internal and external threaded connections and locking mechanisms, the complexity of installation and the difficulty of disassembly of flow meters in high-temperature fluid pipelines are solved, enabling convenient disassembly and assembly of the flow meters and ensuring high stability, as well as sealing performance in high-temperature environments.
Patent Information
- Application Number
- CN202520165562.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-01-24
AI Technical Summary
Existing high-temperature fluid pipeline flow meters are complex to install and inconvenient to disassemble, especially flange connections and welded connections, which present problems of installation complexity and disassembly difficulties.
The system employs a threaded connection and locking mechanism combining internal and external threads, including components such as a fixing plate, a circular ring, a retaining strip, and a wrench, to achieve precise positioning and secondary fixation of the flow meter and pipeline, thereby enhancing connection stability and sealing.
It enables the flow meter to operate stably in high-temperature fluid pipelines, facilitates disassembly and maintenance, simplifies the installation process, improves the stability and sealing of the connection, and prevents fluid leakage.
Smart Images

Figure CN223678575U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to flowmeter technical field, concretely relates to a flowmeter for high temperature fluid pipeline. BACKGROUND
[0002] Flowmeter is a kind of instrument specially used to measure the flow of fluid in high temperature fluid pipeline, it can work normally in high temperature environment and provide accurate flow data, in many industrial fields, such as petroleum chemical industry, metallurgy, energy, etc., high temperature fluid pipeline is common equipment, the temperature of fluid in these pipelines is often very high, so a flowmeter that can withstand high temperature environment and carry out accurate flow measurement is needed.
[0003] The existing flowmeter is mostly installed by flange connection or welding, flange connection needs to accurately align two flange faces, and ensure that multiple screws are uniformly tightened, which increases the complexity and time consumption of installation, and once welding connection is completed, it is usually not easy to disassemble, which limits the flexibility of flowmeter replacement and maintenance, for example, the heat type flowmeter disclosed in the patent with the announcement number CN219589741U, although detachable sealing assembly between flowmeter measuring shaft and pipeline is realized by bolt connection in the patent, bolt connection needs accurate alignment and tightening, and the installation process is relatively complex, and stress concentration is prone to occur at bolt connection, especially during bolt tightening process, which can cause fatigue failure of connecting components, and when disassembling, special tools may be needed to loosen the bolt, increasing the complexity of operation.
[0004] Therefore, it is necessary to invent a flowmeter for high temperature fluid pipeline to solve the above problems. CONTENT OF UTILITY MODEL
[0005] The utility model aims at providing a flowmeter for high temperature fluid pipeline to solve the problem of inconvenient disassembly.
[0006] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme: a flowmeter for high temperature fluid pipeline, including pipeline body, flowmeter body and locking mechanism, the top end of the pipeline body is welded with mounting seat, the inner wall of the mounting seat is provided with internal thread, the upper of the mounting seat is provided with connecting seat, the outer wall of the connecting seat is provided with external thread, the top surface of the connecting seat is connected with support rod, the upper of the support rod is provided with flowmeter body, the outer side of the connecting place of the mounting seat and connecting seat is provided with locking mechanism, the locking mechanism includes fixed plate and circular ring piece, the circular ring piece is connected with clamping strip, the contact position of the clamping strip and fixed plate is equipped with through slot, the outer side of the fixed plate is hinged with wrench, one side of the wrench is provided with clamping jaw, the inside of the wrench is provided with support frame, one side of the support frame is provided with shaft pin, the both ends of the shaft pin extend to the outer wall of the fixed plate.
[0007] Preferably, the mounting seat and the connecting seat are threadedly connected, the internal thread of the inner wall of the mounting seat is matched with the external thread of the outer wall of the connecting seat, and through the mutual cooperation of the internal thread and the external thread, the connecting seat can be accurately positioned and fixed on the mounting seat.
[0008] Preferably, the flowmeter body comprises a sensor and a converter, the sensor is located inside the pipeline body, and the converter is arranged on the side wall of the flowmeter body, so that the flowmeter body has the functions of measurement and data processing.
[0009] Preferably, the flowmeter body further comprises a display screen, the display screen is located on the front side of the flowmeter body, and through the display screen, a user can know the fluid flow in real time and make corresponding adjustment or decision in time.
[0010] Preferably, the fixing plate and the annular sheet are hingedly connected, the inner walls of the fixing plate and the annular sheet are tightly attached to the connecting part of the mounting seat and the connecting seat, and the inner walls of the fixing plate and the annular sheet are provided with sealing rings, so that the locking mechanism further improves the tightness and stability of the connecting part of the mounting seat and the connecting seat and prevents fluid leakage.
[0011] Preferably, the support frame is designed in a "concave" shape structure, the clamping strip passes through the groove arranged on the support frame, and the clamping strip can smoothly pass through the groove of the support frame.
[0012] Preferably, a torsional spring is sleeved on the shaft pin, one end of the torsional spring is located on the side wall of the support frame, and the other end of the torsional spring is located on the inner wall of the wrench, so that the elastic force of the torsional spring can provide additional force when the wrench is locked or loosened, and the tightness of the locking mechanism is ensured.
[0013] Preferably, a sealing gasket is arranged at the connecting part of the mounting seat and the connecting seat, the sealing gasket is made of rubber material, and the top surface of the sealing gasket is tightly attached to the bottom surface of the connecting seat, so that the sealing gasket further enhances the sealing performance between the mounting seat and the connecting seat and prevents fluid leakage.
[0014] In the above technical scheme, the technical effects and advantages of the utility model are as follows:
[0015] 1. The utility model discloses a threaded connection between the mounting seat and the connecting seat, which realizes preliminary accurate positioning and fixing. The tight cooperation of the internal thread and the external thread not only ensures the stability of the connection, but also makes the installation and dismounting process relatively simple and fast.
[0016] 2. The utility model discloses on the basis of threaded connection, also design locking mechanism to carry out secondary fixed, and locking mechanism passes through the synergies of fixed plate, ring piece, card strip, wrench etc. Component, can contract fixed mounting seat and the connecting seat junction, further strengthened the close and stability of mounting seat and the connecting seat junction, this double fixed mechanism, both ensure the stable operation of flowmeter in high temperature fluid pipeline, and convenient for user to disassemble and maintain when needing. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is whole structure schematic diagram of the utility model;
[0018] Figure 2 It is pipeline body and mounting seat section structure schematic diagram of the utility model;
[0019] Figure 3 It is mounting seat and connecting seat explosion solid structure schematic diagram of the utility model;
[0020] Figure 4 It is locking mechanism solid structure schematic diagram of the utility model;
[0021] Figure 5 It is locking mechanism section solid structure schematic diagram of the utility model;
[0022] Figure 6 It is the utility model's Figure 5 It is mounting seat and connecting seat explosion solid structure schematic diagram of the utility model;
[0023] BRIEF DESCRIPTION OF DRAWINGS
[0024] 1, pipeline body;2, mounting seat;3, internal thread;4, connecting seat;5, external thread;6, support rod;7, flowmeter body;701, sensor;702, converter;703, display screen;8, locking mechanism;801, fixed plate;802, ring piece;803, card strip;804, through slot;805, wrench;806, claw;807, support frame;808, axle pin;809, torsional spring;9, sealing pad. DETAILED DESCRIPTION
[0025] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, below will be combined with the drawings to the utility model make further detailed introduction.
[0026] The utility model provides a flowmeter, including pipeline body, mounting seat, connecting seat, locking mechanism and flowmeter body, the pipeline body is provided with mounting seat, and the mounting seat is provided with connecting seat, and the connecting seat is provided with locking mechanism, and the flowmeter body is provided with sensor, converter and display screen. Figures 1-6The utility model provides a flowmeter for high temperature fluid pipeline, including pipeline body 1, flowmeter body 7 and locking mechanism 8, the top of pipeline body 1 is welded with mounting seat 2, is provided with internal thread 3 to the inner wall of mounting seat 2, is provided with connecting seat 4 above mounting seat 2, is provided with external thread 5 to the outer wall of connecting seat 4, the top of connecting seat 4 is connected with support 6, is provided with flowmeter body 7 above support 6, flowmeter body 7 includes sensor 701 and converter 702, sensor 701 is located inside pipeline body 1, and converter 702 is set up in the side wall of flowmeter body 7, flowmeter body 7 still includes display screen 703, and display screen 703 is located in the front side of flowmeter body 7, and the outside of the connecting place of mounting seat 2 and connecting seat 4 is provided with locking mechanism 8, and locking mechanism 8 includes fixed plate 801 and annular sheet 802, and is connected with clamping strip 803 on annular sheet 802, and the contact position of clamping strip 803 and fixed plate 801 is set up with through slot 804, and the outside of fixed plate 801 is hinged with wrench 805, and one side of wrench 805 is provided with clamping jaw 806, and the inside of wrench 805 is provided with support frame 807, and one side of support frame 807 is provided with shaft pin 808, and both ends of shaft pin 808 extend to the outer wall of fixed plate 801.
[0027] The threaded connection between mounting seat 2 and connecting seat 4, the internal thread 3 of the inner wall of mounting seat 2 and the external thread 5 of the outer wall of connecting seat 4 cooperate, the fixed plate 801 and the annular sheet 802 are hinged, the inner wall of the fixed plate 801 and the annular sheet 802 is close to the connecting place of the mounting seat 2 and the connecting seat 4, the inner wall of the fixed plate 801 and the annular sheet 802 is provided with a sealing ring, the support frame 807 is designed as a "concave" structure, the clamping strip 803 passes through the groove in the support frame 807, the torsional spring 809 is sleeved on the shaft pin 808, one end of the torsional spring 809 is located on the side wall of the support frame 807, the other end of the torsional spring 809 is located in the inner wall of the wrench 805, the connecting place of the mounting seat 2 and the connecting seat 4 is provided with a sealing gasket 9, the sealing gasket 9 is made of rubber material, and the top surface of the sealing gasket 9 is close to the bottom surface of the connecting seat 4.
[0028] The inner thread 3 of the inner wall of the mounting seat 2 is matched with the outer thread 5 of the outer wall of the connecting seat 4 to realize preliminary accurate positioning and fixing, the close match of the threads helps to prevent fluid leakage, provides a solid foundation for the subsequent locking mechanism 8, and the locking mechanism 8 is further arranged to enhance the connection stability between the mounting seat 2 and the connecting seat 4; by pressing the pressing end of the wrench 805, the clamping strip 803 can be pulled out at will, so as to expand or reduce the size of the ring opening formed by the fixed plate 801, the ring piece 802 and the clamping strip 803, and when the pressing end of the wrench 805 is loosened, the clamping strip 803 is clamped by the clamping jaw 806 and the clamping strip 803, so that the fixed plate 801, the ring piece 802 and the clamping strip 803 are tightly attached to the connecting portion of the mounting seat 2 and the connecting seat 4, and secondary fixing is realized; the elastic force of the torsional spring 809 helps the wrench 805 to provide additional force when locking or loosening, so as to ensure the tightness of the locking mechanism 8; the sealing gasket 9 ensures the sealing performance of the connecting portion of the mounting seat 2 and the connecting seat 4, and the sealing ring further improves the sealing performance of the outside of the connecting portion of the mounting seat 2 and the connecting seat 4, effectively preventing fluid leakage.
[0029] The working principle of the utility model is as follows:
[0030] The utility model discloses a flowmeter body fixing device Figures 1-6 When using the utility model, first, when needing to install the flowmeter body 7 on the pipeline body 1, the outer thread 5 of the connecting seat 4 is aligned with the inner thread 3 of the mounting seat 2, the connecting seat 4 is rotated clockwise until it is tightly screwed into the mounting seat 2, then the fixed plate 801 and the ring piece 802 are tightly attached to the connecting portion of the mounting seat 2 and the connecting seat 4, the position of the clamping strip 803 is adjusted, the pressing end of the wrench 805 is pressed gently, the clamping jaw 806 is loosened from the clamping strip 803, the adjustment of the clamping strip 803 is realized, until the clamping strip 803 is adjusted to tightly attach to the outer wall of the connecting portion of the mounting seat 2 and the connecting seat 4, at this time, the pressing end of the wrench 805 is loosened, at this time, the elastic force of the torsional spring 809 will make the clamping jaw 806 automatically clamp the clamping strip 803, and locking is realized.
[0031] Similarly, when needing to disassemble the flowmeter body 7, the pressing end of the wrench 805 is pressed gently, the clamping jaw 806 is loosened from the clamping strip 803, the clamping strip 803 is pulled out, the size of the ring opening formed by the fixed plate 801, the ring piece 802 and the clamping strip 803 is expanded, at this time, the wrench 805 is loosened, the locking mechanism 8 is away from the connecting portion of the mounting seat 2 and the connecting seat 4, then the connecting seat 4, the supporting rod 6 and the flowmeter body 7 are rotated counterclockwise from the inner thread 3 of the mounting seat 2, finally, the connecting seat 4, the supporting rod 6 and the flowmeter body 7 are disassembled and removed from the pipeline body 1.
Claims
1. A flow meter for high-temperature fluid pipelines, comprising a pipeline body (1), a flow meter body (7), and a locking mechanism (8), characterized in that: A mounting base (2) is welded to the top of the pipe body (1). The inner wall of the mounting base (2) is provided with an internal thread (3). A connecting seat (4) is provided above the mounting base (2). The outer wall of the connecting seat (4) is provided with an external thread (5). A support rod (6) is connected to the top surface of the connecting seat (4). A flow meter body (7) is provided above the support rod (6). A locking mechanism (8) is provided on the outer side of the connection between the mounting base (2) and the connecting seat (4). The locking mechanism (8) includes a fixing plate (801) and a circular ring plate (802). 802), a retaining strip (803) is connected to the annular piece (802), a through groove (804) is provided at the contact position between the retaining strip (803) and the fixing plate (801), a wrench (805) is hinged to the outside of the fixing plate (801), a claw (806) is provided on one side of the wrench (805), a support frame (807) is provided inside the wrench (805), a shaft pin (808) is provided on one side of the support frame (807), and both ends of the shaft pin (808) extend to the outer wall of the fixing plate (801).
2. The flow meter for high-temperature fluid pipelines according to claim 1, characterized in that: The mounting base (2) and the connecting base (4) are connected by threads, and the internal thread (3) on the inner wall of the mounting base (2) is engaged with the external thread (5) on the outer wall of the connecting base (4).
3. The flow meter for high-temperature fluid pipelines according to claim 1, characterized in that: The flow meter body (7) includes a sensor (701) and a converter (702). The sensor (701) is located inside the pipe body (1), and the converter (702) is disposed on the side wall of the flow meter body (7).
4. A flow meter for high-temperature fluid pipelines according to claim 3, characterized in that: The flow meter body (7) also includes a display screen (703), which is located on the front side of the flow meter body (7).
5. A flow meter for high-temperature fluid pipelines according to claim 1, characterized in that: The fixing plate (801) and the annular piece (802) are hinged together. The inner walls of the fixing plate (801) and the annular piece (802) are in close contact with the connection between the mounting base (2) and the connecting base (4). The inner walls of the fixing plate (801) and the annular piece (802) are provided with sealing rings.
6. A flow meter for high-temperature fluid pipelines according to claim 1, characterized in that: The support frame (807) has a U-shaped structure design, and the clip (803) passes through the groove of the support frame (807).
7. A flow meter for high-temperature fluid pipelines according to claim 1, characterized in that: A torsion spring (809) is sleeved on the pin (808). One end of the torsion spring (809) is located on the side wall of the support frame (807), and the other end of the torsion spring (809) is located on the inner wall of the wrench (805).
8. A flow meter for high-temperature fluid pipelines according to claim 2, characterized in that: A sealing gasket (9) is provided at the connection between the mounting base (2) and the connecting base (4). The sealing gasket (9) is made of rubber and the top surface of the sealing gasket (9) is in close contact with the bottom surface of the connecting base (4).
Citation Information
Patent Citations
Thermal flow meter
CN219589741U