Flow meter body and flow meter

Abstract

The utility model relates to a flow meter body, which comprises a fluid pipeline, the transduction seat is welded and fixed on the outer wall of the fluid pipeline; the two hollow channels are arranged in the transduction seat in parallel and are both communicated with the fluid pipeline; the limiting part is formed on the inner wall of the side, close to the fluid pipeline, of the hollow channel; the communicating groove is formed in the transduction base and located between the ends, away from the fluid pipeline, of the two hollow channels; the line pipeline is fixed on the outer wall of the fluid pipeline; one end of the connecting pipeline is fixedly welded with the transducer and communicated with the hollow channel, and the other end of the connecting pipeline is fixedly welded with the line pipeline and communicated with the inside of the line pipeline. According to the flow meter, the transduction base is welded and fixed to the fluid pipeline, then the two hollow channels are formed in the transduction base to contain the transducers, the two transducers are used for measuring the flow of fluid in the fluid pipeline at the same time, and therefore the influence of the flow meter body on the measured flow of the fluid is reduced; and the flow precision of the fluid in the measured fluid pipeline is improved.

Description

Technical Field

[0001] The present application relates to the field of flow meter bodies, and in particular to a flow meter body and a flow meter. Background Art

[0002] Flow meter, also known as flow meter, is used to measure the instantaneous flow rate and cumulative volume of fluid, and can also quantitatively control the fluid. It has the characteristics of high precision, long life, simple operation and maintenance. It is mainly used in industrial production processes, energy measurement, environmental protection engineering, transportation, biotechnology, scientific experiments, marine meteorology, rivers and lakes, etc.

[0003] The body of a traditional flow meter is usually manufactured by casting, which not only increases the mold opening cost and the casting time, but also makes it difficult to seal the transducer and the flow meter body. In addition, a single transducer is usually used for flow measurement, so that the measured fluid flow usually has a large error, resulting in low accuracy of the measured fluid flow. Utility Model Content

[0004] In order to reduce the influence of the flow meter body on the measurement of fluid flow, the present application provides a flow meter body and a flow meter, which are fixed by welding a transducer seat to a fluid pipeline, and then two hollow channels are opened inside the transducer seat to accommodate the transducers. The two transducers are used to simultaneously measure the flow of the fluid in the fluid pipeline, thereby reducing the influence of the flow meter body on the measurement of the fluid flow and improving the accuracy of the measured flow of the fluid in the fluid pipeline.

[0005] In the first aspect, the present application provides a flow meter body, which adopts the following technical solution:

[0006] A flow meter body, comprising:

[0007] Fluid pipelines;

[0008] The transducer seat is welded and fixed on the outer wall of the fluid pipeline;

[0009] Two hollow channels are parallelly opened inside the transducer seat, both are connected with the fluid pipeline, and both are used to place the transducer;

[0010] A limiting portion is formed on the inner wall of the hollow channel close to the fluid pipeline and is used to limit the transducer;

[0011] A communication groove is provided on the transducer seat and is located between the ends of the two hollow passages away from the fluid pipeline, and is used to accommodate the circuit of the transducer;

[0012] A line pipe, fixed on the outer wall of the fluid pipe, used for installing the meter head and having a hollow interior for passing the transducer line; and

[0013] The connecting pipe has one end welded and fixed to the transducer and communicated with the hollow channel, and the other end welded and fixed to the line pipe and communicated with the inside of the line pipe.

[0014] The limiting portion is an annular protrusion.

[0015] The number of the transducer seats is four, and the four transducer seats are cross-symmetrically arranged on both sides of the axis of the fluid pipeline.

[0016] The four transducer seats are crossed in pairs to form an X shape.

[0017] In the second aspect, the present application provides a flow meter, which adopts the following technical solution:

[0018] A flow meter, comprising the flow meter body described above, and further comprising:

[0019] The meter head is installed on the line pipe;

[0020] The transducer is arranged in the hollow channel and abuts against the limit portion and is electrically connected to the meter head;

[0021] A clamping ring is located in the hollow channel and is threadedly connected to the transducer seat, abutting against the transducer, and is used to clamp the transducer against the limiting portion;

[0022] A connecting line, used to connect the transducer and the meter;

[0023] The cover plate is fixed on the transducer seat by bolt connection and is used for covering the hollow channel on the transducer seat.

[0024] Preferably, it also includes an O-ring sleeved on the transducer, wherein the O-ring is located between the transducer and the limiting portion.

[0025] In summary, this application includes the following beneficial technical effects:

[0026] 1. The present application fixes the transducer seat on the fluid pipeline by welding, and then opens two hollow channels inside the transducer seat to accommodate the transducers, and uses two transducers to measure the flow rate of the fluid in the fluid pipeline at the same time, thereby reducing the influence of the flow meter body on the measured fluid flow rate and improving the flow accuracy of the fluid in the fluid pipeline.

[0027] 2. The present application sets four transducer seats and cross-distributes the four transducer seats in pairs, so that eight transducers can measure the flow rate of the fluid in the fluid pipeline at multiple angles, thereby further reducing the influence of the flow meter body on the measured fluid flow rate and improving the flow rate accuracy of the fluid in the fluid pipeline.

[0028] 3. The present application uses a single clamping ring with a through hole to clamp the transducer onto the limiting portion. Compared with the traditional solution of using two clamping rings, it is easier to disassemble and assemble, reduces the labor intensity of installation and maintenance, is not only simple and easy to operate, but also saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0030] Figure 2 It is a schematic diagram of a structure in which part of the structure in the embodiment of the present application is cut away.

[0031] Explanation of the reference numerals: 11, fluid pipeline; 12, transducer seat; 121, hollow channel; 122, limit portion; 123, connecting groove; 13, line pipeline; 14, connecting pipeline; 21, transducer; 22, O-ring; 23, clamping ring; 24, cover plate. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] The embodiment of the present application discloses a flow meter body.

[0034] Reference Figure 1 and Figure 2 The flow meter body includes a fluid pipeline 11, a transducer seat 12, a line pipeline 13 and a connecting pipeline 14.

[0035] Both ends of the fluid pipeline 11 are connected to pipeline flanges respectively. The fluid pipeline 11 is used for fluid flow so as to measure the flow rate of the fluid.

[0036] Reference Figure 1 and Figure 2 One end of the transducer seat 12 is welded and fixed on the outer wall of the fluid pipeline 11. There are four transducer seats 12. The four transducer seats 12 are symmetrically arranged on both sides of the axis of the fluid pipeline 11 in pairs, and the four transducer seats 12 are crossed in pairs to form an X shape. Two hollow channels 121 arranged in parallel are opened on each transducer seat 12. The two hollow channels 121 penetrate the fluid pipeline 11 and extend to the inside of the fluid pipeline 11. The two hollow channels 121 are distributed in parallel up and down. The hollow channels 121 are used to install and place the transducer 21. The transducer 21 contacts the fluid inside the fluid pipeline 11, so as to measure the flow rate of the fluid.

[0037] A limiting portion 122 is formed on the inner wall of the hollow channel 121 on one side close to the fluid pipeline 11 . The limiting portion 122 is an annular protrusion and is used to limit the transducer 21 to prevent the transducer 21 from falling into the fluid pipeline 11 .

[0038] Reference Figure 1 and Figure 2 The line pipe 13 is located at the top of the outer wall of the fluid pipe 11 , and the line pipe 13 is used to install and fix the meter head by bolts, and the interior of the line pipe 13 is used to penetrate the line connecting the meter head and the transducer 21 .

[0039] One end of the connecting pipe 14 is welded and fixed to the side wall of the line pipe 13, and the other end of the connecting pipe 14 is welded and fixed to the top of the transducer seat 12, and the two ends of the connecting pipe 14 are respectively connected to the interior of the line pipe 13 and the interior of the hollow channel 121 on the upper part of the transducer seat 12.

[0040] Reference Figure 1 and Figure 2 In order to enable the circuit of the transducer 21 in the hollow channel 121 at the bottom of the transducer seat 12 to smoothly enter the connecting pipe 14, a connecting groove 123 is opened at the end of the transducer seat 12 away from the fluid pipe 11, wherein the connecting groove 123 connects the two hollow channels 121, and the circuit of the transducer 21 in the lower hollow channel 121 enters the upper hollow channel 121 through the connecting groove 123, and then enters the connecting pipe 14.

[0041] This embodiment measures the flow rate of the fluid in the fluid pipeline 11 at multiple positions and angles, and each transducer seat 12 measures the fluid flow rate in two layers, so that the measured flow rate in the fluid pipeline 11 is more accurate.

[0042] Reference Figure 1 and Figure 2 The embodiment of the present application also discloses a flow meter, which includes a flow meter body disclosed in the above embodiment. In addition, the flow meter also includes a meter head, a transducer 21, an O-ring 22, a clamping ring 23, a connecting line and a cover plate 24.

[0043] Among them, the meter head is fixed on the line pipe 13 by bolt connection, the transducer 21 is installed in the hollow channel of the transducer seat 12, and the O-ring 22 is sleeved on the transducer 21, and the O-ring 22 is located between the transducer 21 and the limiting portion 122. When in use, the O-ring 22 abuts against the limiting portion 122, and the O-ring 22 seals the space between the transducer 21 and the limiting portion 122.

[0044] The clamping ring 23 is located in the hollow channel 121 and is screwed to the transducer seat 12 . When in use, the clamping ring 23 abuts against the transducer 21 . Specifically, a hexagonal through hole is provided on the clamping ring 23 , and the clamping ring 23 is installed in the hollow channel 121 using the hexagonal through hole.

[0045] One end of the connection line is electrically connected to the transducer 21, and the other end of the connection line is electrically connected to the meter head, and the connection line is used to electrically connect the transducer 21 to the meter head. The connection line on the transducer 21 in the hollow channel 121 at the lower part of the transducer seat 12 first passes through the connecting groove 123 on the transducer seat 12, and then enters the connecting pipe 14 together with the connection line of the transducer 21 in the hollow channel 121 at the upper part of the transducer seat 12.

[0046] The cover plate 24 is fixed to the transducer seat 12 by bolt connection. The cover plate 24 is used to cover the openings of the two hollow channels 121 on the transducer seat 12 .

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A flow meter body, characterized in that: include: Fluid pipelines; The transducer seat is welded and fixed on the outer wall of the fluid pipeline; Two hollow channels are parallelly opened inside the transducer seat, both are connected with the fluid pipeline, and both are used to place the transducer; A limiting portion is formed on the inner wall of the hollow channel close to the fluid pipeline and is used to limit the transducer; A communication groove is provided on the transducer seat and is located between the ends of the two hollow passages away from the fluid pipeline, and is used to accommodate the circuit of the transducer; The line pipe is fixed on the outer wall of the fluid pipe, used for installing the meter head and is hollow inside and used for passing the transducer line; as well as The connecting pipe has one end welded and fixed to the transducer and communicated with the hollow channel, and the other end welded and fixed to the line pipe and communicated with the inside of the line pipe.

2. A flow meter body according to claim 1, characterized in that: The limiting portion is an annular protrusion.

3. A flow meter body according to claim 1, characterized in that: The number of the transducer seats is four, and the four transducer seats are cross-symmetrically arranged on both sides of the axis of the fluid pipeline.

4. A flow meter body according to claim 3, characterized in that: The four transducer seats are crossed in pairs to form an X shape.

5. A flow meter, characterized in that: A flow meter body comprising any one of claims 1 to 4, the flow meter further comprising: The meter head is installed on the line pipe; The transducer is arranged in the hollow channel and abuts against the limit portion and is electrically connected to the meter head; A clamping ring is located in the hollow channel and is threadedly connected to the transducer seat, abutting against the transducer, and is used to clamp the transducer against the limiting portion; A connecting line, used to connect the transducer and the meter; The cover plate is fixed on the transducer seat by bolt connection and is used for covering the hollow channel on the transducer seat.

6. A flow meter according to claim 5, characterized in that: It also includes an O-type sealing ring sleeved on the transducer, and the O-type sealing ring is located between the transducer and the limiting part.

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