Glass rotameter with high sealing performance

Abstract

The utility model relates to the technical field of glass rotameters, in particular to a glass rotameter with high sealing performance. Comprising a flow meter supporting plate, an upper flow meter mounting seat and a lower flow meter mounting seat which are mounted on the same side of the flow meter supporting plate, and a glass flow meter body mounted between the upper flow meter mounting seat and the lower flow meter mounting seat. Sealing assemblies for sealing and pressing are arranged between the glass flow meter main body and the upper flow meter mounting seat and between the glass flow meter main body and the lower flow meter mounting seat; the sealing assembly comprises a pressing nut installed in cooperation with the upper flow meter installation base / the lower flow meter installation base, and a sealing cavity formed in the pressing nut. And a sealing seat and a sealing ring which are in wedge-shaped fit are arranged in the sealing cavity. The sealing performance and the stability of the sealing assembly are enhanced through wedge-shaped installation of the sealing seat and the sealing ring, the compression nut is fastened and compressed in a time-saving and labor-saving mode, the device is easy to assemble, the overall assembling time is shortened, and the practical performance and the assembling efficiency of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of glass rotor flowmeter technology, specifically a glass rotor flowmeter with strong sealing performance. Background Technology

[0002] Glass rotor flowmeters are widely used in chemical, petroleum, light industry, medical and other industries. The main measuring element is the glass flowmeter body, which contains a float that can float up and down. When the fluid flows from top to bottom through the glass flowmeter body, the flow rate of the fluid is detected by the scale of the float floating up and down.

[0003] In existing technologies, there are two installation methods for glass rotor flowmeters and pipelines: threaded screw sealing and press-fit sealing. The threaded screw sealing method is problematic because the arc-shaped outer wall of the glass tube is prone to rolling when placed on the operating platform, making it difficult to position during installation. Furthermore, the lack of a stress-bearing part during assembly results in insufficient tightness in the screw-fit installation, failing to secure the seal properly. This affects the smooth flow of fluid, causing some fluid to leak from the connection gaps, leading to fluid loss and further impacting the accuracy of the flow rate detection of the glass rotor flowmeter. The press-fit sealing method concentrates the force at both ends of the glass tube, resulting in uneven stress, affecting the stability of the glass rotor flowmeter, and making it prone to damage or cracking of the glass tube wall, thus affecting the accuracy of the flow rate measurement of the glass rotor flowmeter. Utility Model Content

[0004] Given that existing technologies suffer from insufficient sealing tightness, leading to fluid leakage through connection gaps and uneven stress causing damage or cracking of the glass tube wall, thus affecting the accuracy of the device's detection, this invention provides a glass rotor flowmeter with strong sealing performance. The wedge-shaped fit between the sealing ring and the sealing seat not only ensures the sealing performance of the glass rotor flowmeter but also shortens the assembly time of the device, improving its overall stability and operational efficiency.

[0005] This utility model provides a glass rotor flowmeter with strong sealing performance, including a flowmeter support plate, an upper flowmeter mounting base and a lower flowmeter mounting base installed on the same side of the flowmeter support plate, and a glass flowmeter body installed between the upper flowmeter mounting base and the lower flowmeter mounting base; a sealing component for sealing and pressing is provided between the glass flowmeter body and the upper flowmeter mounting base and the lower flowmeter mounting base.

[0006] The sealing assembly includes: a clamping nut that is fitted with the upper flow meter mounting base / lower flow meter mounting base, and a sealing cavity formed inside the clamping nut; the sealing cavity is provided with a wedge-fitting sealing seat and a sealing ring.

[0007] Furthermore, the upper flow meter mounting base / lower flow meter mounting base is provided with a flow cavity for fluid flow.

[0008] Furthermore, the flow cavity includes: a straight section installed with the pipeline, and a stepped vertical section installed with the glass flow meter body, wherein the sealing seat is disposed within the stepped vertical section.

[0009] Furthermore, the sealing seat includes: an integrally formed stepped column portion and an outer cone portion, and a flow channel for fluid flow disposed at the center of the sealing seat, wherein the stepped column portion is adapted to the vertical section of the steps.

[0010] Furthermore, the stepped connection of the stepped column is provided with a sealing oblique section for sealing and pressing with the vertical section of the stepped column.

[0011] Furthermore, the sealing ring is fitted onto the glass flow meter body, and the sealing ring includes: an inner cone portion that fits with the outer cone portion, and a cylindrical portion integrally formed with the inner cone portion, the outer side of the cylindrical portion being adapted to the inner wall of the stepped vertical section.

[0012] Furthermore, the inner wall of the vertical section of the step is provided with mounting threads that cooperate with the clamping nut for installation.

[0013] Furthermore, the flow meter support plate is provided with a fluid inlet and a fluid outlet corresponding to the flow cavity, the fluid inlet corresponding to the upper flow meter mounting base, and the fluid outlet corresponding to the lower flow meter mounting base.

[0014] Furthermore, the flow cavity and flow channel are connected to the main liquid path of the glass flow meter.

[0015] Furthermore, both the sealing seat and the sealing ring are made of polytetrafluoroethylene (PTFE).

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model patent, through the design of the sealing component, allows the glass flow meter body to be securely and sealed to both the upper and lower flow meter mounting bases simultaneously, preventing leakage during fluid flow and ensuring no waste or loss of fluid, thereby guaranteeing the accuracy of the flow meter measurement data. The wedge-shaped installation of the sealing seat and sealing ring enhances the sealing performance of the sealing component, ensuring smooth fluid flow and further guaranteeing the overall stability of the device. It also allows for more time-saving and labor-saving tightening of the clamping nut, making the device easier to assemble, shortening the overall assembly time of the glass rotor flow meter, and improving the practicality and assembly efficiency of the device.

[0018] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 This is a structural diagram of the glass rotor flowmeter.

[0021] Figure 2 This is a structural diagram of the sealing seat.

[0022] Figure 3 This is a diagram of the overall structure of the sealing ring.

[0023] Figure 4 This is a diagram of the overall structure of the flow cavity.

[0024] The following are the labeling elements in the diagram: 1. Flowmeter support plate; 2. Upper flowmeter mounting base; 3. Lower flowmeter mounting base; 4. Glass flowmeter body; 5. Sealing assembly; 51. Compression nut; 52. Sealing seat; 521. Stepped column; 522. Outer cone; 523. Sealing oblique section; 53. Sealing ring; 531. Inner cone; 532. Columnar section; 6. Flow cavity; 61. Straight section; 62. Stepped vertical section; 621. Mounting thread; 7. Flow channel; 8. Fluid inlet; 9. Fluid outlet. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0027] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0028] Please refer to Figures 1-4 This utility model provides a glass rotor flowmeter with strong sealing performance, including a flowmeter support plate 1, an upper flowmeter mounting seat 2 and a lower flowmeter mounting seat 3 installed on the same side of the flowmeter support plate 1, and a glass flowmeter body 4 installed between the upper flowmeter mounting seat 2 and the lower flowmeter mounting seat 3.

[0029] A sealing assembly 5 for sealing and tightening is provided between the glass flow meter body 4 and the upper flow meter mounting base 2 and the lower flow meter mounting base 3. The sealing assembly 5 includes: a clamping nut 51 that is installed in conjunction with the upper flow meter mounting base 2 / lower flow meter mounting base 3, and a sealing cavity formed inside the clamping nut 51; a wedge-shaped sealing seat 52 and a sealing ring 53 are provided inside the sealing cavity.

[0030] In this embodiment, the sealing component 5 allows the glass flowmeter body 4 to be securely and sealed to both the upper flowmeter mounting base 2 and the lower flowmeter mounting base 3 simultaneously, preventing leakage during fluid flow and ensuring that fluid is not wasted or lost, thereby guaranteeing the accuracy of the flowmeter measurement data. The wedge-shaped installation of the sealing base 52 and the sealing ring 53 enhances the sealing performance of the sealing component 5, ensuring smooth fluid flow and further guaranteeing the overall stability of the device. It also allows the clamping nut 51 to be tightened more quickly and effortlessly, making the device easier to assemble, shortening the overall assembly time of the glass rotor flowmeter, and improving the practicality and assembly efficiency of the device.

[0031] In this embodiment, the sealing component 5 seals the glass flow meter body 4 with the upper flow meter mounting base 2 and the lower flow meter mounting base, allowing fluid to flow smoothly into the glass flow meter body 4 for flow detection, ensuring no fluid leakage occurs. The wedge-shaped fit between the sealing seat 52 and the sealing ring 53, and the tight compression nut 51, strengthens the sealing performance of the sealing component 5, enhances the smoothness of fluid flow, and further ensures the accuracy of the fluid flow rate detected by the glass flow meter body 4.

[0032] like Figure 1 As shown, the upper flow meter mounting base 2 and the lower flow meter mounting base 3 are provided with a flow cavity 6 for fluid flow.

[0033] To further explain, such as Figure 4 As shown, the flow cavity 6 includes: a straight section 61 installed with the pipeline, and a stepped vertical section 62 installed with the glass flow meter body 4. The sealing seat 52 is disposed in the stepped vertical section 62, and the inner wall of the stepped vertical section 62 is provided with an installation thread 621 that cooperates with the clamping nut 51.

[0034] like Figure 1As shown, the flow meter support plate 1 is provided with a fluid inlet 8 and a fluid outlet 9 corresponding to the flow cavity 6. The fluid inlet 8 corresponds to the upper flow meter mounting base 2, and the fluid outlet 9 corresponds to the lower flow meter mounting base 3.

[0035] In this embodiment, the fluid in the pipeline flows from the fluid inlet 8 to the flow chamber 6 in the upper flow meter mounting base 2, flows from the straight section 61 to the stepped vertical section 62, then flows into the glass flow meter body 4 for flow velocity detection, then flows into the flow chamber 6 in the lower flow meter mounting base 3, and finally flows out through the fluid outlet 9. The continuous flow of the fluid allows the glass flow meter body 4 to continuously detect the flow velocity of the fluid.

[0036] Furthermore, the sealing component 5 ensures that the fluid can flow smoothly and in a sealed manner from the stepped vertical section 62 into the glass flow meter body 4, enhancing the overall tightness and sealing of the device, and also ensuring the overall efficiency of the device in measuring the fluid flow rate.

[0037] like Figure 1 and Figure 2 As shown, the sealing seat 52 includes: an integrally formed stepped column portion 521 and an outer cone portion 522, and a flow channel 7 disposed at the center of the sealing seat 52 for fluid flow. The stepped column portion 521 is adapted to the stepped vertical section 62, and a sealing inclined section 523 is provided at the stepped connection of the stepped column portion 521 for sealing and pressing with the stepped vertical section 62.

[0038] like Figure 3 As shown, the sealing ring 53 is fitted onto the glass flow meter body 4. The sealing ring 53 includes: an inner cone 531 that fits into the outer cone 522, and a cylindrical part 532 integrally formed with the inner cone 531. The outer side of the cylindrical part 532 is adapted to the inner wall of the stepped vertical section 62.

[0039] To further explain, the flow chamber 6 and the flow channel 7 are connected to the liquid path of the glass flow meter body 4. The fluid flows from the straight section 61 of the flow chamber 6 to the stepped vertical section 62, and then flows from the flow channel 7 at the center of the sealing seat 52 into the glass flow meter body 4 to detect the fluid flow rate.

[0040] In this embodiment, the sealing seat 52 is disposed in the stepped vertical section 62. After the fluid flows from the straight section 61 to the stepped vertical section 62, it flows in the flow channel 7 and then flows into the glass flow meter body 4 for fluid velocity detection.

[0041] To further explain, the stepped column portion 521 of the sealing seat 52 is tightly pressed into the inner cavity of the stepped vertical section 62. By pressing and squeezing the sealing inclined section 523, it is made to fit tightly against the inner wall of the step angle of the stepped vertical section 62, ensuring that the fluid will not leak. The overall tight sealing performance is ensured by the fit between the outer cone portion 522 and the inner cone portion 531.

[0042] Furthermore, by tightening the clamping nut 51 with the mounting thread 621, the sealing ring 53 and the sealing seat 52 are sealed and pressed together. The fitting installation of the outer cone 522 and the inner cone 531 makes the clamping nut 51 easier to tighten, shortens the assembly time of the device, and enhances the installation efficiency of the device.

[0043] Furthermore, both the sealing seat 52 and the sealing ring 53 are made of polytetrafluoroethylene (PTFE). PTFE has high resistance to chemical corrosion, a wide temperature range, and a low coefficient of friction. When the fluid is corrosive, the use of PTFE in the sealing seat 52 and sealing ring 53 ensures smooth and sealed flow of the fluid without causing damage to them. This enhances the stability of the sealing assembly 5 and the overall device, ensuring the overall efficiency of the device.

[0044] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A glass rotor flowmeter with strong sealing performance, characterized in that, It includes a flow meter support plate (1), an upper flow meter mounting base (2) and a lower flow meter mounting base (3) installed on the same side of the flow meter support plate (1), and a glass flow meter body (4) installed between the upper flow meter mounting base (2) and the lower flow meter mounting base (3); A sealing assembly (5) for sealing and pressing is provided between the glass flow meter body (4) and the upper flow meter mounting base (2) and the lower flow meter mounting base (3); The sealing assembly (5) includes: a clamping nut (51) that is fitted to the upper flow meter mounting base (2) / lower flow meter mounting base (3), and a sealing cavity formed inside the clamping nut (51); the sealing cavity is provided with a wedge-fitting sealing seat (52) and a sealing ring (53).

2. The glass rotor flowmeter with strong sealing performance according to claim 1, characterized in that, The upper flow meter mounting base (2) and the lower flow meter mounting base (3) are provided with a flow cavity (6) for fluid flow.

3. The glass rotor flowmeter with strong sealing performance according to claim 2, characterized in that, The flow cavity (6) includes a straight section (61) installed with the pipeline and a stepped vertical section (62) installed with the glass flow meter body (4), and the sealing seat (52) is disposed in the stepped vertical section (62).

4. The glass rotor flowmeter with strong sealing performance according to claim 3, characterized in that, The sealing seat (52) includes: an integrally formed stepped column portion (521) and an outer cone portion (522), and a flow channel (7) for fluid flow is provided at the center of the sealing seat (52), wherein the stepped column portion (521) is adapted to the stepped vertical section (62).

5. The glass rotor flowmeter with strong sealing performance according to claim 4, characterized in that, The stepped column (521) is provided with a sealing oblique section (523) for sealing and pressing with the vertical section (62) of the step.

6. The glass rotor flowmeter with strong sealing performance according to claim 4, characterized in that, The sealing ring (53) is fitted onto the glass flow meter body (4). The sealing ring (53) includes an inner cone (531) that fits into the outer cone (522) and a cylindrical part (532) integrally formed with the inner cone (531). The outer side of the cylindrical part (532) is adapted to the inner wall of the stepped vertical section (62).

7. The glass rotor flowmeter with strong sealing performance according to claim 3, characterized in that, The inner wall of the vertical section (62) of the step is provided with an installation thread (621) that is fitted to the clamping nut (51).

8. The glass rotor flowmeter with strong sealing performance according to claim 2, characterized in that, The flow meter support plate (1) is provided with a fluid inlet (8) and a fluid outlet (9) corresponding to the flow cavity (6). The fluid inlet (8) corresponds to the upper flow meter mounting base (2), and the fluid outlet (9) corresponds to the lower flow meter mounting base (3).

9. The glass rotor flowmeter with strong sealing performance according to claim 4, characterized in that, The flow chamber (6) and flow channel (7) are connected to the liquid path of the glass flow meter body (4).

10. The glass rotor flowmeter with strong sealing performance according to claim 1, characterized in that, Both the sealing seat (52) and the sealing ring (53) are made of polytetrafluoroethylene.

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