Vortex shedding flowmeter convenient to connect

Abstract

The utility model provides a vortex shedding flowmeter convenient to connect. The vortex shedding flowmeter comprises a sensor shell, and a line detection amplifier with a connecting conductor is installed on the sensor shell through a connecting rod; the two ends of the sensor shell are respectively provided with an end flange, and each end flange is detachably provided with a transition flange. A positioning sleeve is arranged on the outer end face of the end flange, the transition flange is arranged on the positioning sleeve in a sleeved mode, the end flange and the transition flange are fixed through a plurality of inner connecting pieces, inner connecting holes and a plurality of outer connecting holes are formed in the transition flange, the diameter of the center circle of each inner connecting hole is smaller than that of the center circle of each outer connecting hole, and the inner connecting holes correspond to the inner connecting pieces in a one-to-one mode. A sensor shell side sealing piece is arranged between the end flange and the transition flange, and a pipeline side sealing piece is arranged on the side, different from the end flange, of the transition flange. The transition flange is detachably installed on the end flange, transition flanges of different specifications can be replaced according to needs so as to meet the connection requirements of different pipelines, the flexibility is high, and operability is high.

Description

Technical Field

[0001] This invention belongs to the field of flow meter installation technology, and in particular relates to a vortex flow meter that is easy to connect. Background Technology

[0002] Vortex flow meters are volumetric flow meters designed and manufactured based on the Karman vortex street principle to measure the volumetric flow rate, standard volumetric flow rate, or mass flow rate of gases, steam, or liquids. They are primarily used for measuring the flow rate of fluids in industrial pipelines, such as gases, liquids, and steam. Their characteristics include low pressure loss, a wide measuring range, and high accuracy. When measuring volumetric flow rate under operating conditions, they are virtually unaffected by parameters such as fluid density, pressure, temperature, and viscosity. Currently, gas turbine flow meters are directly fixed to pipelines using screws. However, due to the wide variety of pipeline specifications and the diverse sizes of connecting flanges, flow meters within the specified size range often cannot be properly fitted to the installation dimensions, requiring custom-made installations. This increases operating costs and installation difficulty. Therefore, it is necessary to improve existing flow meters. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the deficiencies in the prior art and propose a vortex flow meter that is easy to connect.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] The conveniently connected vortex flow meter includes a sensor housing, on which a detection amplifier is mounted via a connecting rod, and a connecting wire is provided on the detection amplifier. Both ends of the sensor housing have end flanges, and a transition flange can be detachably installed on each end flange. A positioning sleeve is provided on the outer end face of the end flange, and the transition flange is fitted into the positioning sleeve. The end flange and the transition flange are fixed together by several internal connecting parts. The transition flange has several internal connecting holes and several external connecting holes, with the central circle diameter of each internal connecting hole being smaller than the central circle diameter of each external connecting hole. Each internal connecting hole corresponds to one of the internal connecting parts. A sensor housing side seal is provided between the end flange and the transition flange, and a pipe side seal is provided on the side of the transition flange opposite to the end flange.

[0006] Furthermore, the positioning sleeve is arranged coaxially with the sensor housing.

[0007] Furthermore, the positioning sleeve, end flange, and sensor housing are integrally formed.

[0008] Furthermore, each of the aforementioned internal connecting holes is evenly distributed around the axis of the transition flange.

[0009] Furthermore, each of the aforementioned external connection holes is evenly distributed around the axis of the transition flange.

[0010] Furthermore, the connecting rod can be detachably installed on the sensor housing.

[0011] Furthermore, the sensor housing is provided with a base, and the connecting rod can be detachably installed on the base.

[0012] Furthermore, the transition flange is provided with 4-5 internal connection holes and 4-5 external connection holes.

[0013] Furthermore, both the sensor housing-side seal and the pipe-side seal utilize sealing rings.

[0014] Compared with existing technologies, the present invention has the following advantages:

[0015] This invention features a simple and rationally designed structure. The transition flange is detachably installed on the end flange, allowing for the replacement of different specifications of transition flanges to adapt to various pipeline connection requirements. It offers high flexibility and operability. By setting an end flange at the end of the sensor housing as a fixed structure for the transition flange, and utilizing a positioning sleeve on the end flange face to position the transition flange, it not only facilitates the assembly between the transition flange and the sensor housing but also provides radial structural reinforcement to the transition flange, improving the stress on the connection between the transition flange and the end flange and laying the foundation for long-term stable operation of the flow meter. Furthermore, a sensor housing-side seal is provided between the end flange and the transition flange to ensure a tight seal, and a pipeline-side seal is provided at the outer end of the transition flange, ensuring excellent sealing at the connection between the transition flange and the pipeline. Attached Figure Description

[0016] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments and descriptions of the invention are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure created by this invention;

[0018] Figure 2 This is a schematic diagram showing the invention after removing the transition flange;

[0019] Figure 3 This is a schematic diagram of the sensor housing portion in this invention.

[0020] Figure 4 This is a schematic diagram of the transition flange in the present invention;

[0021] Figure 5 This is a schematic diagram of the transition flange from another perspective in the invention. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Easy-to-connect vortex flow meters, such as Figures 1 to 5 As shown, the sensor includes a sensor housing 1, a detection amplifier 3 mounted on the sensor housing via a connecting rod 2, and a connecting wire 4 on the detection amplifier; end flanges 5 are provided at both ends of the sensor housing, and a transition flange 6 can be detachably installed on each end flange; a positioning sleeve 7 is provided on the outer end face of the end flange, the transition flange is fitted into the positioning sleeve, and the end flange and the transition flange are fixed together by several internal connecting parts 8.

[0027] The transition flange has several internal connecting holes 9 and several external connecting holes 10. The end flange has fixing holes 13 corresponding to the internal connecting holes, and each fixing hole is fitted with an internal connector. For example, the transition flange has 4-5 internal connecting holes and 4-5 external connecting holes. The central circle diameter of each internal connecting hole is smaller than the central circle diameter of each external connecting hole, and the internal connecting holes correspond one-to-one with the internal connectors. Preferably, the internal connecting holes are blind holes.

[0028] A sensor housing-side seal 11 is provided between the end flange and the transition flange, and a pipe-side seal 12 is provided on the side of the transition flange opposite to the end flange, which can effectively ensure the sealing performance after the flow meter is connected to the pipeline. Typically, the sensor housing-side seal is located on the side of the end flange facing the transition flange. In this invention, the transition flange is detachably installed on the end flange, and different specifications of transition flanges can be replaced as needed to adapt to different pipeline connection requirements, offering high flexibility and operability. It should be noted that "replacing transition flanges of different specifications to adapt to different pipeline connection requirements" refers to the adaptation to pipelines of similar specifications and sizes within the applicable range of the flow meter, solving the problem that pipelines of similar specifications are inconvenient to connect to the flow meter.

[0029] The internal connecting holes are evenly distributed around the axis of the transition flange. The external connecting holes are also evenly distributed around the axis of the transition flange. Typically, the connecting rod is detachably mounted to the sensor housing. For example, the sensor housing has a base, and the connecting rod is detachably mounted to the base 14, facilitating assembly and disassembly.

[0030] The positioning sleeve is coaxially arranged with the sensor housing. The positioning sleeve, end flange, and sensor housing are integrally formed. Both the sensor housing-side seal and the pipe-side seal use sealing rings. For example, the sealing ring material can be selected based on the actual operating conditions; suitable products include, but are not limited to, rubber sealing rings, silicone sealing rings, and PTFE sealing rings.

[0031] This invention features a simple and rationally designed structure. The transition flange is detachably installed on the end flange, allowing for the replacement of different specifications of transition flanges to adapt to various pipeline connection requirements. It offers high flexibility and operability. By setting an end flange at the end of the sensor housing as a fixed structure for the transition flange, and utilizing a positioning sleeve on the end flange face to position the transition flange, it not only facilitates the assembly between the transition flange and the sensor housing but also provides radial structural reinforcement to the transition flange, improving the stress on the connection between the transition flange and the end flange and laying the foundation for long-term stable operation of the flow meter. Furthermore, a sensor housing-side seal is provided between the end flange and the transition flange to ensure a tight seal, and a pipeline-side seal is provided at the outer end of the transition flange, ensuring excellent sealing at the connection between the transition flange and the pipeline.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A conveniently connected vortex flow meter, characterized in that: The sensor housing includes a sensor housing with a detection amplifier mounted on it via a connecting rod and a connecting wire on the detection amplifier. Both ends of the sensor housing have end flanges, and a transition flange can be detachably installed on each end flange. A positioning sleeve is provided on the outer end face of each end flange, and the transition flange is fitted into the positioning sleeve. The end flanges and transition flanges are fixed together by several internal connecting parts. The transition flange has several internal connecting holes and several external connecting holes, with the central circle diameter of each internal connecting hole being smaller than the central circle diameter of each external connecting hole. Each internal connecting hole corresponds to one of the internal connecting parts. A sensor housing-side seal is provided between the end flanges and the transition flanges, and a pipe-side seal is provided on the side of the transition flange opposite to the end flange.

2. The vortex flow meter with convenient connection according to claim 1, characterized in that: The positioning sleeve is arranged coaxially with the sensor housing.

3. The vortex flow meter with convenient connection according to claim 1, characterized in that: The positioning sleeve, end flange, and sensor housing are integrally formed.

4. The vortex flow meter with convenient connection according to claim 1, characterized in that: The internal connecting holes are evenly distributed around the axis of the transition flange.

5. The vortex flow meter with convenient connection according to claim 1, characterized in that: The external connection holes are evenly distributed around the axis of the transition flange.

6. The vortex flow meter with convenient connection according to claim 1, characterized in that: The connecting rod can be detachably installed on the sensor housing.

7. The vortex flow meter with convenient connection according to claim 6, characterized in that: The sensor housing is equipped with a base, and the connecting rod can be detachably installed on the base.

8. The vortex flow meter with convenient connection according to claim 1, characterized in that: The transition flange is provided with 4-5 internal connection holes and 4-5 external connection holes.

9. A conveniently connected vortex flow meter according to any one of claims 1 to 8, characterized in that: Both the sensor housing side seal and the pipe side seal use sealing rings.

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