Polymer glass fiber slide flowmeter

By designing a polymer glass fiber sliding vane flow meter, the centrifugal force of the sliding vane and the roller is used to maintain a seal, solving the problems of inaccurate flow measurement and wear in existing flow meter equipment, and achieving accurate measurement and wear resistance.

CN121540238BActive Publication Date: 2026-04-24HEFEI HONGFENG INSTR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI HONGFENG INSTR
Filing Date
2026-01-20
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Due to the influence of inertia and friction, the flow velocity of the fluid in existing flow meter equipment is inconsistent with the rotation speed of the flow meter, resulting in inaccurate flow measurement and the inability to automatically adjust the sealing pressure, which can easily lead to wear or insufficient sealing pressure.

Method used

The flow meter employs a polymer glass fiber sliding vane. Through the design of the flow path component, flow component, and rotating component, it utilizes the centrifugal force of the sliding vane and roller to maintain a seal. Combined with the self-lubricating properties of the composite material sliding vane, it avoids the influence of friction and achieves accurate measurement.

Benefits of technology

It effectively avoids the influence of inertia and friction on flow measurement, ensuring accurate flow measurement, and reduces wear between the slide and the housing, extending service life. It also has self-lubricating properties to prevent corrosion.

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Abstract

The high polymer glass fiber slide sheet flowmeter disclosed by the present disclosure relates to the technical field of flowmetering equipment and comprises a flowing component, a flow component and a rotating component. The flowing component comprises a shell and a flange. Sealing components are arranged on both sides of the shell. The sealing components comprise front and rear cover plates. An inlet and outlet component is arranged on the shell. The flow component comprises a flowmeter and a display screen. The flowmeter is arranged on the top of the shell. An adjusting component is arranged on the flowmeter. The high polymer glass fiber slide sheet flowmeter can make the cylinder rotate one circle, and a fixed volume of fluid is transported into the outlet through the inlet. The number of rotating circles of the rotating shaft is recorded by a counter on the connecting piece. The flow and rotating speed are not mismatched due to the influence of inertia and friction of the slide sheet, the cylinder and the rotating shaft. The flow of the fluid is accurately metered, and the high polymer glass fiber slide sheet flowmeter is suitable for accurately metering the flow of the fluid.
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Description

Technical Field

[0001] This disclosure relates to the field of flow meter technology, and in particular to a polymer glass fiber sliding vane flow meter. Background Technology

[0002] To facilitate the measurement of fluid flow, flow meter equipment is often required.

[0003] The invention patent with patent application number CN202411377438.1 discloses a turbine flow meter for flow measurement. By setting a guide tube, a tensioning telescopic component and a truncated cone structure, the jet gap can be reduced when measuring small flow processes, thereby increasing the fluid jet velocity. The high-velocity fluid drives the turbine to rotate, enabling the turbine to effectively overcome the friction between itself and the shaft. The repulsive force between the first magnet and the second magnet is used to push out the slide rod without consuming electrical energy. By setting the structure of the slider and the resistor, the cross-sectional area of ​​the current jet gap can be accurately calculated based on the change of the current value, and then the flow rate corresponding to the turbine rotation under that cross-sectional area can be accurately calculated. The pulse signal generated under small flow rate can be measured, thereby measuring small flow rate. The invention patent with patent application number CN202410866097.8 discloses a vibration-resistant and flow-stabilizing vortex flow meter. The flow channel of the fluid is formed by an arc plate and a connecting diaphragm. The arc plate and the connecting diaphragm are connected end to end to form a tubular structure. The arc plate is movably installed inside the middle tube through connecting frame one and connecting frame two. When connecting frame one and connecting frame two are adjusted in position along with the movable installation components, they will cooperate with the connecting diaphragm to adjust the inner diameter of the tubular structure, thereby adjusting the pipe diameter to detect the flow rate when the fluid flow rate changes. The adjustment drive mechanism acts on the movable mounting component through the contact component, driving the connecting frame one and the arc plate to move, thereby adjusting the position of the arc plate. The connecting ring and the docking ring are installed through the fixing ring one and the fixing ring two. The flow channel of the tubular structure is coaxially installed between the frustum tube and the intermediate tube through the connecting frame one and the connecting frame two. The docking ring is pressed on the fixing ring two, and the connecting ring is fixedly connected to the fixing ring one, thereby limiting the flow channel of the tubular structure. When the pipe diameter is adjusted, the connecting frame one and the connecting frame two slide inside the frustum tube respectively, ensuring that the dimensions at both ends of the flow channel of the tubular structure are consistent when the structure is adjusted, thereby ensuring that the vortices can be accurately counted and the flow rate can be measured when the "Karman vortex street" phenomenon occurs.

[0004] According to its publicly available technical solutions, existing flow meter equipment has two main drawbacks during use. First, due to the influence of inertia and friction, the flow velocity of the fluid is not completely consistent with the rotation speed of the flow meter, which makes it difficult to ensure the accurate measurement of the fluid flow. Second, it cannot automatically adjust the sealing pressure of the rotating equipment according to the fluid delivery pressure, which can easily lead to excessive pressure and severe wear, or insufficient sealing pressure and inaccurate flow measurement. Summary of the Invention

[0005] This disclosure aims to at least partially address one of the technical problems in the related art.

[0006] Therefore, the purpose of this disclosure is to provide a polymer glass fiber sliding vane flow meter.

[0007] To achieve the above objectives, this disclosure provides a polymer glass fiber sliding vane flow meter, comprising: a flow-through component, a flow assembly, and a rotating component. The flow-through component includes a housing and a flange. Sealing assemblies are installed on both sides of the housing. The sealing assemblies include a front cover plate and a rear cover plate. An inlet / outlet assembly is installed on the housing, including an inlet and an outlet. The flow assembly includes a flow meter and a display screen. The flow meter is installed on the top of the housing. An adjusting component is installed on the flow meter, including a knob and an antenna. A detection component is installed on the flow meter, including a connector and a counter. The rotating component includes a roller and a shaft. The roller is installed inside the housing. A sliding component is installed inside the roller, including a groove and a vane. A connecting component is installed inside the roller, including a central opening and a connecting hole.

[0008] Optionally, the inlet is integrally formed on the top of one side of the housing, the outlet is integrally formed on the top of the other side of the housing, the bottom of both sides of the flange are welded to the top of the inlet and outlet respectively, the flange is sleeved on the outer side of the inlet and outlet, and the inlet and outlet are respectively connected to both sides of the housing.

[0009] Optionally, the front cover is sealed to the outer side of one end of the housing by a sealing ring, and the rear cover is sealed to the outer side of the other end of the housing by a sealing ring. Both the front cover and the rear cover are fixed to the housing by bolts.

[0010] Optionally, the bottom of the connector is welded to the outer side of the rear cover plate, and the top of the connector is bolted to the bottom of the flow meter.

[0011] Optionally, the display screen is bolted to one side of the flow meter, the antenna is bolted to one end of the flow meter, and the knob is bolted to the other end of the flow meter.

[0012] Optionally, the counter is mounted on the bottom of the connector by bolts, the counter is connected to the flow meter by wires, and the flow meter is connected to the antenna and the display screen by wires.

[0013] Optionally, one end of the rotating shaft is fixed to the inside of the drum, and the other end of the rotating shaft passes through the rear cover plate through a sealing ring and extends to the inside of the bottom of the connector, with the counter cooperating with the rotating shaft.

[0014] Optionally, the roller is sleeved on the outer side of the rotating shaft, and the two ends of the roller are respectively secured to the inner sides of the front cover plate and the rear cover plate by sealing rings. The sliding groove is opened on the inner side of the roller and the sliding groove is evenly distributed around the roller.

[0015] Optionally, one end of the slider is sealed and fitted inside the slide groove, and the other end of the slider extends to the outside of the slide groove. The other end of the slider is also attached to the inner wall of the housing. The material of the slider is glass fiber reinforced polycarbonate (PC-GF), which includes polycarbonate and glass fiber. The glass fiber accounts for 30% of the glass fiber reinforced polycarbonate, and the repeating unit of the polycarbonate has the molecular formula (C...). 16 H 14 O3)n.

[0016] Optionally, the central opening is located at the center of the roller, the connecting hole is located on the inner side of the roller, the central opening is connected to the slide groove through the connecting hole, and through holes are provided on the front cover plate and the housing. A one-way valve is installed on the inner side of the through hole, and the inlet is connected to the central opening in one direction through the through hole and the one-way valve in sequence.

[0017] The technical solution provided in this disclosure may include the following beneficial effects:

[0018] In use, the fluid delivery pipes are installed at the inlet and outlet respectively, and fixed by flanges. The fluid enters the inner side of the housing through the inlet, which pushes the sliding vane. The sliding vane drives the drum to rotate inside the housing, which in turn drives the shaft to rotate. The inner side of the housing is divided into multiple cavities by the drum and sliding vane. Under the action of the centrifugal force of the drum rotation and the pressure generated by the sliding vane moving into the groove, the sliding vane is kept in close contact with the inner wall of the housing. Thus, for each rotation of the drum, a fixed volume of fluid is delivered from the inlet to the outlet. The counter on the connector records the number of rotations of the shaft, and the flow meter displays the fluid flow rate on the display screen. This effectively avoids the mismatch between flow rate and rotation speed caused by the inertia and friction of the sliding vane, drum, and shaft, and can effectively and accurately measure the fluid flow rate.

[0019] During use, when the fluid enters the inner side of the inlet, it passes through the through-hole and one-way valve into the inner side of the intermediate port, and then through the connecting hole into the inner side of the slide groove. This causes the slide plate to be squeezed and clamped onto the inner wall of the housing. The centrifugal force generated by the rotation of the slide plate ensures that the slide plate is tightly clamped onto the inner wall of the housing, and the outward pressure of the slide plate is slightly greater than the inward pressure exerted by the fluid on the slide plate. This allows the slide plate to effectively maintain the sealing and isolation effect on the housing, preventing the fluid from flowing through the space between the slide plate and the housing, ensuring accurate flow measurement, while also preventing excessive pressure, reducing wear between the slide plate and the housing, and ensuring the service life of the slide plate. The slide plate is made of composite material: PC provides toughness and processability, while GF provides rigidity, strength, and heat resistance. The combination of the two significantly improves the performance, has high hardness characteristics, can replace metal, and can avoid corrosion; it also has self-lubricating properties.

[0020] Additional aspects and advantages of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this disclosure. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this disclosure will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 This is a schematic diagram of the structure of a polymer glass fiber sliding vane flowmeter according to an embodiment of this disclosure. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the structure of a polymer glass fiber sliding vane flowmeter according to an embodiment of this disclosure. Figure 2 ;

[0024] Figure 3 This is a schematic diagram of the structure of a polymer glass fiber sliding vane flowmeter according to an embodiment of this disclosure. Figure 3 ;

[0025] Figure 4 This is a cross-sectional view of a polymer glass fiber sliding vane flowmeter according to an embodiment of this disclosure. Figure 1 ;

[0026] Figure 5 This is a cross-sectional view of a polymer glass fiber sliding vane flowmeter according to an embodiment of this disclosure. Figure 2 ;

[0027] Figure 6 This is a cross-sectional view of a polymer glass fiber sliding vane flowmeter according to an embodiment of this disclosure. Figure 3 ;

[0028] Figure 7This is a schematic diagram of the slide of a polymer glass fiber sliding flowmeter according to an embodiment of the present disclosure;

[0029] As shown in the figure: 1. Housing; 2. Rear cover; 3. Front cover; 4. Flow meter; 5. Display screen; 6. Antenna; 7. Knob; 8. Connector; 9. Counter; 10. Inlet; 11. Outlet; 12. Flange; 13. Roller; 14. Slide groove; 15. Sliding vane; 16. Center port; 17. Connecting hole. Detailed Implementation

[0030] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, this disclosure proposes a polymer glass fiber sliding vane flow meter, comprising: a flow-through component, a flow assembly, and a rotating component. The flow-through component includes a housing 1 and a flange 12. Sealing assemblies are installed on both sides of the housing 1, and the sealing assemblies include a front cover plate 3 and a rear cover plate 2. An inlet / outlet assembly is installed on the housing 1, and the inlet / outlet assembly includes an inlet 10 and an outlet 11. The flow assembly includes a flow meter 4 and a display screen 5. The flow meter 4 is installed on the top of the housing 1, and an adjustment assembly is installed on the flow meter 4. The adjustment assembly includes a knob 7 and an antenna 6. A detection assembly is installed on the flow meter 4, and the detection assembly includes a connector 8 and a counter 9. The rotating component includes a roller 13 and a rotating shaft. The roller 13 is installed inside the housing 1, and a sliding assembly is installed inside the roller 13. The sliding assembly includes a sliding groove 14 and a sliding vane 15. A communication assembly is installed inside the roller 13, and the communication assembly includes a central port. 16 and connecting hole 17, the front cover plate 3 is sealed to the outer side of one end of the housing 1 by a sealing ring, the rear cover plate 2 is sealed to the outer side of the other end of the housing 1 by a sealing ring, the front cover plate 3 and the rear cover plate 2 are both fixed to the housing 1 by bolts, the bottom of the connector 8 is welded to the outer side of the rear cover plate 2, the top of the connector 8 is fixed to the bottom of the flow meter 4 by bolts, the display screen 5 is fixed to one side of the flow meter 4 by bolts, the antenna 6 is fixed to one end of the flow meter 4 by bolts, the knob 7 is fixed to the other end of the flow meter 4, the counter 9 is fixed to the bottom of the connector 8 by bolts, the counter 9 is connected to the flow meter 4 by wires, the flow meter 4 is connected to the antenna 6 and the display screen 5 by wires, one end of the rotating shaft is fixed to the inner side of the roller 13, the other end of the rotating shaft passes through the rear cover plate 2 by a sealing ring and extends to the inner side of the bottom of the connector 8, and the counter 9 cooperates with the rotating shaft.

[0032] Understandably, during use, the fluid delivery pipes are installed on the inlet 10 and outlet 11 respectively, and fixed by the flange 12. The fluid enters the inner side of the housing 1 through the inlet 10, which pushes the slide vane 15. The slide vane 15 drives the roller 13 to rotate inside the housing 1, which in turn drives the rotating shaft to rotate. The inner side of the housing 1 is divided into multiple cavities by the roller 13 and the slide vane 15. Under the action of the centrifugal force of the roller 13 and the pressure generated by the movement of the slide vane 15 into the groove 14, the slide vane 15 remains in close contact with the inner wall of the housing 1. Thus, for each rotation of the roller 13, a fixed volume of fluid is delivered to the outlet 11 through the inlet 10. The counter 9 on the connector 8 records the number of rotations of the rotating shaft, so that the flow meter 4 displays the fluid flow rate on the display screen 5. This effectively avoids the mismatch between flow rate and rotation speed caused by the inertia and friction of the slide vane 15, roller 13, rotating shaft and other structures, and can effectively and accurately measure the fluid flow rate.

[0033] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the inlet 10 is integrally formed on the top of one side of the housing 1, and the outlet 11 is integrally formed on the top of the other side of the housing 1. The bottom of both sides of the flange 12 are welded to the top of the inlet 10 and the outlet 11, respectively. The flange 12 is fitted onto the outer side of the inlet 10 and the outlet 11. The inlet 10 and the outlet 11 are respectively connected to the two sides of the housing 1. The roller 13 is fitted onto the outer side of the rotating shaft. The two ends of the roller 13 are respectively secured to the inner sides of the front cover plate 3 and the rear cover plate 2 by sealing rings. The slide groove 14 is formed on the inner side of the roller 13 and is evenly distributed around the roller 13. One end of the sliding plate 15 is sealed and secured to the inner side of the slide groove 14, and the other end of the sliding plate 15 extends to the outer side of the slide groove 14. The other end of the sliding plate 15 is pressed against the inner wall of the housing 1. The material of the sliding plate 15 is glass fiber reinforced polycarbonate PC-GF (Polycarbonate-Glass). Fiber (commonly known as glass fiber reinforced polycarbonate) is a modified engineering plastic in which glass fibers are uniformly added to polycarbonate (PC) resin and compounded through a special process. The glass fiber reinforced polycarbonate comprises polycarbonate and glass fibers, with the glass fibers accounting for 30% of the total. The repeating unit molecular formula of the polycarbonate is (C... 16 H 14 O3)n, the central opening 16 is opened at the center of the roller 13, the connecting hole 17 is opened on the inner side of the roller 13, the central opening 16 is connected to the slide groove 14 through the connecting hole 17, the front cover plate 3 and the housing 1 are both provided with through holes, and a one-way valve is installed on the inner side of the through hole, and the inlet 10 is connected to the central opening 16 in one direction through the through hole and the one-way valve in sequence.

[0034] Understandably, during use, when the fluid enters the inner side of inlet 10, it will pass through the through hole and one-way valve into the inner side of port 16, and then through connecting hole 17 into the inner side of slide groove 14. This causes the slide plate 15 to be squeezed and clamped onto the inner wall of housing 1. The centrifugal force generated by the rotation of slide plate 15 ensures that slide plate 15 is tightly clamped onto the inner wall of housing 1, and the outward pressure of slide plate 15 is slightly greater than the inward pressure of the fluid on slide plate 15. This allows the slide plate to effectively maintain the sealing and isolation effect of housing 1, preventing the fluid from flowing through the space between slide plate 15 and housing 1, ensuring accurate flow measurement, while also preventing excessive pressure, reducing wear between slide plate 15 and housing 1, and ensuring the service life of slide plate 15. Slide plate 15 is a composite material. PC provides toughness and processability, while GF provides rigidity, strength, and heat resistance. The combination of the two significantly improves performance, has high hardness, can replace metal, and can avoid corrosion; it also has self-lubricating properties.

[0035] In the description of this disclosure, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0036] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0038] Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure.

Claims

1. A polymer glass fiber sliding vane flow meter, characterized in that, include: The flow-through component includes a housing (1) and a flange (12). Sealing components are installed on both sides of the housing (1). The sealing components include a front cover plate (3) and a rear cover plate (2). An inlet-outlet component is installed on the housing (1). The inlet-outlet component includes an inlet (10) and an outlet (11). The flow assembly includes a flow meter (4) and a display screen (5). The flow meter (4) is mounted on the top of the housing (1). An adjustment assembly is mounted on the flow meter (4), which includes a knob (7) and an antenna (6). A detection assembly is mounted on the flow meter (4), which includes a connector (8) and a counter (9). A rotating assembly, comprising a roller (13) and a rotating shaft, wherein the roller (13) is mounted on the inner side of the housing (1), and a sliding assembly is mounted on the inner side of the roller (13), the sliding assembly comprising a groove (14) and a slide (15), and a connecting assembly is mounted on the inner side of the roller (13), the connecting assembly comprising a central opening (16) and a connecting hole (17), the display screen (5) is bolted to one side of the flow meter (4), the antenna (6) is bolted to one end of the flow meter (4), the knob (7) is mounted to the other end of the flow meter (4), the counter (9) is bolted to the bottom of the connector (8), the counter (9) is connected to the flow meter (4) by a wire, the flow meter (4) is connected to the antenna (6) and the display screen (5) by a wire, one end of the rotating shaft is fixedly mounted on the inner side of the roller (13), and the other end of the rotating shaft passes through the rear cover plate (2) through a sealing ring and extends to the bottom of the connector (8). Inside, the counter (9) cooperates with the rotating shaft; the roller (13) is sleeved on the outer side of the rotating shaft, and the two ends of the roller (13) are respectively locked to the inner sides of the front cover plate (3) and the rear cover plate (2) by sealing rings; the slide groove (14) is opened on the inner side of the roller (13), and the slide groove (14) is evenly distributed around the roller (13); one end of the sliding piece (15) is sealed and locked to the inner side of the slide groove (14), and the other end of the sliding piece (15) extends into the slide groove (14). On the outside, the other end of the slide (15) is attached to the inner wall of the housing (1). The central opening (16) is opened at the center of the roller (13). The connecting hole (17) is opened on the inner side of the roller (13). The central opening (16) is connected to the slide groove (14) through the connecting hole (17). The front cover plate (3) and the housing (1) are both provided with through holes. A one-way valve is installed on the inner side of the through hole. The inlet (10) is connected to the central opening (16) in one direction through the through hole and the one-way valve in sequence.

2. The polymer glass fiber sliding vane flowmeter according to claim 1, characterized in that: The inlet (10) is integrally formed on the top of one side of the housing (1), the outlet (11) is integrally formed on the top of the other side of the housing (1), the bottom of both sides of the flange (12) is welded to the top of the inlet (10) and the outlet (11) respectively, the flange (12) is sleeved on the outer side of the inlet (10) and the outlet (11), and the inlet (10) and the outlet (11) are respectively connected to both sides of the housing (1).

3. The polymer glass fiber sliding vane flowmeter according to claim 2, characterized in that: The front cover plate (3) is sealed to the outer side of one end of the housing (1) by a sealing ring, and the rear cover plate (2) is sealed to the outer side of the other end of the housing (1) by a sealing ring. Both the front cover plate (3) and the rear cover plate (2) are fixed to the housing (1) by bolts.

4. The polymer glass fiber sliding vane flowmeter according to claim 3, characterized in that: The bottom of the connector (8) is welded to the outer side of the rear cover plate (2), and the top of the connector (8) is installed on the bottom of the flow meter (4) by bolts.

5. The polymer glass fiber sliding vane flowmeter according to claim 1, characterized in that: The material of the sliding plate (15) is glass fiber reinforced polycarbonate (PC-GF), which includes polycarbonate and glass fiber. The glass fiber accounts for 30% of the glass fiber reinforced polycarbonate, and the repeating unit molecular formula of the polycarbonate is as follows: .

Citation Information

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