Gas meter body assembly

Abstract

The utility model discloses a fuel gas meter body assembly, which comprises a shell provided with a fuel gas channel; the at least one flange is coaxially arranged with the fuel gas channel and is connected with the shell; the sound channel assemblies are arranged on the two sides of the shell in pairs, and the sound channel assemblies are used for collecting data of media flowing through the fuel gas channels, so that the weight of the whole meter body is reduced under the condition that the caliber size of the fuel gas channels, the number of sound channels and the appearance size of the meter body of the meter body are the same; and the metering instrument is more convenient to install, maintain and carry.

Description

Technical Field

[0001] This utility model belongs to the technical field of gas metering devices, specifically relating to a gas meter body assembly. Background Technology

[0002] The ultrasonic flow meter is a precision multi-channel ultrasonic gas flow meter designed for measurement applications requiring high accuracy and reliability. It is primarily used for natural gas trade metering, serving city gas and industrial / commercial users. An upper-mounted corrector integrates temperature and pressure correction functions, converting the operating condition volumetric flow rate measured by the flow meter into a standard condition volumetric flow rate.

[0003] Most ultrasonic gas flow meters on the market are currently time-of-flight ultrasonic flow meters. When ultrasonic waves propagate in a flowing medium, their velocity relative to a fixed coordinate system differs from their velocity in a stationary medium, and this change is related to the medium's flow velocity. Therefore, the medium's flow velocity can be calculated from the change in ultrasonic wave velocity, and time-of-flight ultrasonic flow meters are designed based on this principle.

[0004] Chinese patent application number CN202223237147.1 discloses an industrial gas ultrasonic flow meter, which includes a metering tube, a gas ultrasonic flow meter body, and a U-shaped protective plate, a top buckle plate, a heat insulation core plate, a heat insulation inner plate, a card seat, a card plate and a foam heat insulation block to form a heat insulation mechanism. The gas ultrasonic flow meter body is installed in the middle of the metering tube.

[0005] As the applicant further investigated, it was found that the existing technical solution has fewer channels and a smaller overall weight of the dosimeter, making it easier to transport. However, when dealing with larger delivery pipelines, the number of channels needs to be increased to improve the accuracy of the dosimeter in measuring gas media. This results in a significant increase in the weight and diameter of the entire dosimeter, requiring adjustments to the original dosimeter structure to accommodate installation and transport operations. Utility Model Content

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A gas meter assembly, comprising:

[0008] The casing has a gas passage;

[0009] At least one flange is coaxially arranged with the gas passage and connected to the housing;

[0010] The sound channel assembly is provided in at least one set and is arranged in pairs on both sides of the housing. The sound channel assembly collects the medium data through which the gas channel flows.

[0011] Furthermore, each group of the acoustic duct components is arranged symmetrically and crosswise about the central axis of the gas passage.

[0012] Furthermore, a lifting ring is connected to the top of the flange.

[0013] Furthermore, the bottom of the flange has a placement plane.

[0014] Furthermore, the housing is also provided with a pressure tap that is connected to the gas passage.

[0015] Furthermore, a pressure sensor and a temperature sensor electrically connected to the acoustic channel assembly are disposed within the housing.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] By installing a flange on the side of the housing and connecting it to the gas pipeline via an external flange, the material usage of the housing is reduced compared to the existing structure where the gas pipeline is directly connected to the side of the meter body. Specifically, the annular groove formed between the housing and the flange in this solution reduces the weight of the entire meter body while maintaining the same gas channel diameter, number of sound channels, and overall meter body dimensions. This makes the meter installation, maintenance, and handling more convenient. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an embodiment of a gas meter body assembly according to the present invention;

[0019] Figure 2 This is a front view structural diagram of an embodiment of a gas meter body assembly according to the present invention;

[0020] Figure 3 This is a half-sectional structural diagram of an embodiment of a gas meter body assembly according to the present invention;

[0021] The reference numerals in the accompanying drawings include:

[0022] Housing 1, gas passage 10, pressure tap 11, pressure sensor 12, temperature sensor 13, flange 2, lifting ring 20, placement plane 21, sound channel assembly 3. Detailed Implementation

[0023] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0024] The accompanying drawings are for illustrative purposes only and represent schematic diagrams, not actual physical objects. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals in the drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" appear, indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model 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. Therefore, the terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0025] like Figure 1 - Figure 3 As shown, a gas meter assembly of the present invention includes a housing 1 and a flange 2.

[0026] The casing 1 has a gas passage 10;

[0027] At least one flange 2 is connected to the side of the housing 1, and the flange 2 is coaxially arranged with the gas passage 10;

[0028] At least one set of sound channel components 3 are arranged in pairs on both sides of the housing 1. The sound channel components 3 collect data on the medium flowing through the gas passage 10.

[0029] By installing a flange 2 on the side of the housing 1 and connecting it to the gas pipeline through the external flange 2, the material usage of the housing 1 is reduced compared to the existing structure in which the gas pipeline is directly connected to the side of the meter body. Specifically, the annular groove formed between the housing 1 and the flange 2 in this solution reduces the weight of the entire meter body while maintaining the same gas channel 10 diameter, number of sound channels, and overall meter body dimensions. This makes the meter installation, maintenance, and handling more convenient.

[0030] In addition, each group of sound channel components 3 is arranged symmetrically and crosswise about the central axis of the gas channel 10.

[0031] Each set of sound channel components 3 is set in pairs and contains ultrasonic sensors. The ultrasonic sensors are symmetrically and alternately distributed on both sides of the central axis of the gas channel 10 to collect and detect the flow rate of the gas medium. The corresponding flow rate is calculated according to the different diameters of the gas channel 10. At the same time, the collected and detected data is transmitted to the correction instrument connected to the upper part for processing, and finally displayed and stored.

[0032] The flange 2 has a lifting ring 20 connected to its top. During the installation and handling of the body assembly, lifting equipment can be used to lift the assembly via the connection to the lifting ring 20. To ensure stable lifting, two flanges 2 can be symmetrically installed.

[0033] like Figure 3 As shown, the bottom of flange 2 has a placement plane 21. The height of this placement plane 21 is higher than the height of the bottom of the case.

[0034] like Figure 1 As shown, the housing 1 is also provided with a pressure tap 11 that communicates with the gas passage 10. The provision of the pressure tap 11 allows metering and regulatory units to install and test gas pressure parameters on-site without having to disassemble the entire meter.

[0035] In addition, a pressure sensor 12 and a temperature sensor 13, which are electrically connected to the sound channel assembly 3, are provided inside the housing 1, such as Figure 1 As shown.

[0036] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can improve and implement this solution based on the guidance provided in this application and their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A gas meter assembly, characterized in that, include: The casing has a gas passage; At least one flange is coaxially arranged with the gas passage and connected to the housing; The sound channel assembly is provided in at least one set and is arranged in pairs on both sides of the housing. The sound channel assembly collects the medium data through which the gas channel flows.

2. The gas meter assembly as described in claim 1, characterized in that: Each group of acoustic duct components is arranged symmetrically and crosswise about the central axis of the gas passage.

3. A gas meter assembly as described in claim 1 or 2, characterized in that: A lifting ring is connected to the top of the flange.

4. A gas meter assembly as described in claim 3, characterized in that: The flange has a placement surface at its bottom.

5. A gas meter assembly as described in claim 1, characterized in that: The housing is also provided with a pressure tap that is connected to the gas passage.

6. A gas meter assembly as described in claim 1, characterized in that: The housing contains a pressure sensor and a temperature sensor that are electrically connected to the acoustic channel assembly.

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