Gas meter

Abstract

The utility model provides a gas meter, and relates to the technical field of gas meters. The gas meter comprises a gas meter shell, a metering module, a control valve and a mounting frame, a first gas inlet and a first gas outlet are formed in the gas meter shell, the metering module is arranged in the gas meter shell and communicated with the first gas inlet, the control valve is arranged in the gas meter shell, an outlet of the control valve is communicated with the first gas outlet, and the mounting frame is arranged in the gas meter shell and communicated with the first gas inlet. The mounting frame is communicated with the metering module and an inlet of the control valve and comprises at least one arc-shaped section, and the arc-shaped sections are arranged at the corners of the mounting frame. According to the gas meter, when gas flows in the mounting frame, vortex is not prone to being formed, the flowing stability of the gas is good, and the metering precision of the metering module is improved.

Description

Technical Field

[0001] This application relates to the field of gas meter technology, and more particularly to a gas meter. Background Technology

[0002] A gas meter is a device used to measure and record gas usage.

[0003] In the prior art, a gas meter includes a gas meter housing, a metering module, and a motor valve, both of which are located within the gas meter housing. The motor valve includes a valve body and a valve frame, with the valve frame connecting the valve body and the metering module. The valve frame includes multiple sequentially arranged straight segments, with an included angle of 90 degrees between adjacent straight segments.

[0004] However, when the gas flows through the valve frame, it is easier for eddies to form at the angle between two adjacent straight segments, which affects the metering accuracy of the metering module. Utility Model Content

[0005] This application provides a gas meter to solve the problem in the prior art that gas is prone to forming eddies at the angle between two adjacent straight segments, which affects the metering accuracy of the metering module.

[0006] This application provides a gas meter, including:

[0007] A gas meter housing, wherein the gas meter housing has a first gas inlet and a first gas outlet;

[0008] A metering module is disposed inside the gas meter housing and is connected to the first gas inlet.

[0009] A control valve is disposed inside the gas meter housing, and the outlet of the control valve is connected to the first gas outlet.

[0010] The mounting bracket is disposed inside the gas meter housing and connects the metering module to the inlet of the control valve. The mounting bracket includes at least one arc-shaped segment, which is disposed at a corner of the mounting bracket.

[0011] In some possible implementations, there are at least two arc-shaped segments, each of which is arranged sequentially along the flow direction of the gas in the mounting frame. Two adjacent arc-shaped segments are interconnected, with one end of the arc-shaped segment connected to the metering module and the other end of the arc-shaped segment connected to the control valve.

[0012] In some possible implementations, the mounting bracket further includes at least one straight section that connects two adjacent arcuate sections.

[0013] In some possible implementations, the mounting bracket further includes at least one connecting segment that connects the arc-shaped segment to the metering module, and / or, the connecting segment that connects the arc-shaped segment to the control valve.

[0014] In some possible implementations, a grille is also included, wherein the connecting segment connects the arcuate segment to the metering module, and the grille is disposed within the connecting segment.

[0015] In some possible implementations, a rectifier is also included, which is disposed within the gas meter housing and has a plurality of parallel rectifying channels communicating with the first air inlet.

[0016] The gas meter housing has a receiving cavity, and the rectifier channel is connected to the metering module through the receiving cavity.

[0017] In some possible implementations, the rectifier includes a base plate and a plurality of rectifier plates disposed on the base plate, wherein the rectifier plates are arranged sequentially at intervals, and the rectifier channel is formed between two adjacent rectifier plates.

[0018] In some possible implementations, the spacing between two adjacent rectifier plates is equal.

[0019] In some possible implementations, the base plate includes a first segment, a second segment, and a third segment arranged sequentially, the first segment and the third segment being parallel to each other, the second segment being inclined relative to the first segment, the first segment being opposite to the first air inlet, and the distance between the third segment and the plane where the first air inlet is located being less than the distance between the first segment and the plane where the first air inlet is located.

[0020] The rectifier plate is at least partially disposed on the third segment.

[0021] In some possible implementations, the rectifier further includes a baffle that surrounds at least a portion of the periphery of the base plate.

[0022] This application discloses a gas meter, comprising: a gas meter housing, a metering module, a control valve, and a mounting bracket. The gas meter housing has a first gas inlet and a first gas outlet. The metering module is disposed within the gas meter housing and communicates with the first gas inlet. The control valve is disposed within the gas meter housing, and its outlet communicates with the first gas outlet. The mounting bracket is disposed within the gas meter housing and communicates with the inlet of the control valve. The mounting bracket includes at least one arc-shaped segment located at a corner of the mounting bracket. By providing the arc-shaped segment, compared to the 90-degree corners in the prior art, the gas flow within the arc-shaped segment is smoother and more stable, thus preventing the formation of eddies within the arc-shaped segment. By providing arc-shaped segments at the corners of the mounting bracket, the gas flow field between the metering module and the control valve is improved, resulting in better gas flow stability between the metering module and the control valve, thereby enhancing the metering accuracy of the metering module. Attached Figure Description

[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0024] Figure 1 This is a schematic diagram of the structure of a gas meter provided in an embodiment of this application;

[0025] Figure 2 for Figure 1 A sectional view;

[0026] Figure 3 for Figure 2 A schematic diagram of the metering module and control valve;

[0027] Figure 4 for Figure 3 Schematic diagram of the control valve structure;

[0028] Figure 5 for Figure 4 Another structural diagram from another perspective;

[0029] Figure 6 for Figure 2 Schematic diagram of the intermediate rectifier;

[0030] Figure 7 for Figure 6 A structural diagram from another perspective.

[0031] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 - Gas meter housing; 110 - First air inlet; 120 - First air outlet; 130 - Receiving cavity; 140 - Top surface;

[0034] 200 - Metering module; 210 - Second air inlet; 220 - Second air outlet;

[0035] 300 - Control valve; 310 - Third air inlet; 320 - Third air outlet;

[0036] 400 - Mounting bracket; 410 - Curved section; 420 - Straight section; 430 - Connecting section; 440 - Fourth air inlet; 450 - Fourth air outlet;

[0037] 500 - Grille; 510 - Frame; 520 - Grille bar;

[0038] 600-Rectifier; 610-Base plate; 611-First section; 612-Second section; 613-Third section; 620-Rectifier plate; 621-Rectifier channel; 630-Baffle; 631-Recess. Detailed Implementation

[0039] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0040] In existing technology, a gas meter includes a gas meter housing, a metering module, and a motor valve, both of which are located within the gas meter housing. The gas meter housing has an inlet and an outlet. Gas enters the gas meter housing through the inlet and flows out of the gas meter through the outlet after passing through the metering module and the motor valve in sequence. The metering module measures the flow rate of the gas passing through it. The motor valve includes a valve body and a valve frame, which connects the valve body to the metering module. By controlling the opening and closing of the valve body, it controls whether the gas in the gas meter housing can flow out through the outlet. The valve frame includes multiple sequentially arranged straight segments, with an angle of 90 degrees between adjacent segments. However, when a large flow of gas passes through the 90-degree angle between adjacent straight segments, eddies are easily formed at the 90-degree angle, resulting in poor flow stability of the gas within the metering module and an unstable gas flow field within the gas meter housing, thus affecting the metering accuracy of the metering module.

[0041] Based on this, this application provides a gas meter, including: a gas meter housing, a metering module, a control valve, and a mounting bracket. The gas meter housing has a first gas inlet and a first gas outlet. The metering module is disposed inside the gas meter housing and communicates with the first gas inlet. The control valve is disposed inside the gas meter housing and communicates with the first gas outlet. The mounting bracket is disposed inside the gas meter housing and communicates with the metering module and the control valve. The mounting bracket includes at least one arc-shaped segment, which is disposed at a corner of the mounting bracket. By setting the arc-shaped segment, compared with the 90-degree corner in the prior art, the gas flow path within the arc-shaped segment is smoother and more stable, thus making it less likely for the gas to form eddies within the arc-shaped segment. By setting arc-shaped segments at the corners of the mounting bracket, the gas flow field between the metering module and the control valve is improved, resulting in better gas flow stability between the metering module and the control valve, thereby improving the metering accuracy of the metering module.

[0042] The embodiments of this application are described below with reference to the accompanying drawings.

[0043] Reference Figures 1 to 7 This application provides a gas meter, including: a gas meter housing 100, a metering module 200, a control valve 300, and a mounting bracket 400. The gas meter housing 100 has a first gas inlet 110 and a first gas outlet 120. The metering module 200 is disposed inside the gas meter housing 100 and communicates with the first gas inlet 110. The control valve 300 is disposed inside the gas meter housing 100, and its outlet communicates with the first gas outlet 120. The mounting bracket 400 is disposed inside the gas meter housing 100, and communicates with the inlet of the control valve 300. The mounting bracket 400 includes at least one arc-shaped segment 410, which is disposed at a corner of the mounting bracket 400.

[0044] The gas used in this application may include natural gas, liquefied petroleum gas, etc. The metering module 200 is used to measure the flow rate of the gas passing through.

[0045] Specifically, the gas meter housing 100 has a receiving cavity 130, through which a first air inlet 110 and a first air outlet 120 are connected. The metering module 200, control valve 300, and mounting bracket 400 are all located within the receiving cavity 130. The metering module 200 has a second air inlet 210 and a second air outlet 220, with the second air inlet 210 connected to the receiving cavity 130. The control valve 300 has a third air inlet 310 and a third air outlet 320, and the mounting bracket 400 has a fourth air inlet 440 and a fourth air outlet 450. The fourth air inlet 440 is connected to the second air outlet 220, the fourth air outlet 450 is connected to the third air inlet 310, and the third air outlet 320 is connected to the first air outlet 120. Thus, after the gas enters the receiving cavity 130 through the first air inlet 110, it can enter the metering module 200 through the second air inlet 210, and then flow out of the gas meter housing 100 through the mounting bracket 400, the control valve 300 and the first air outlet 120 in sequence, so that the flow rate of the gas can be measured by the metering module 200.

[0046] The control valve 300 connects the third air inlet 310 and the third air outlet 320, allowing the gas to flow out through the first air outlet 120. Alternatively, the control valve 300 can interrupt the connection between the third air inlet 310 and the third air outlet 320, thus stopping the flow of gas within the control valve 300 and preventing the gas from flowing out through the first air outlet 120. For example, the control valve 300 can be a motor valve.

[0047] In some examples, the mounting bracket 400 can be connected to the metering module 200 and the control valve 300 to connect the metering module 200 and the control valve 300 via the mounting bracket 400. The connection method between the mounting bracket 400 and the metering module 200 and the control valve 300 can be threaded connection, snap-fit, welding, or other connection methods.

[0048] In other examples, the mounting bracket 400 may be integrally formed on the metering module 200 or the control valve 300.

[0049] Understandably, in practical use, arc-shaped segments 410 can be provided at all corners of the mounting bracket 400, that is, arc-shaped segments 410 can be used to replace the 90-degree corners in the prior art. Specifically, the number and position of the arc-shaped segments 410 can be adjusted according to the installation space between the metering module 200 and the control valve 300. For example, the included angle between the planes containing the two end faces of the arc-shaped segment 410 can be 90 degrees.

[0050] In this embodiment, by setting an arc segment 410, compared to the 90-degree corner in the prior art, the flow of gas within the arc segment 410 is smoother and more stable, thus preventing the formation of eddies within the arc segment 410. By setting arc segments 410 at all corners of the mounting bracket 400, the gas flow field between the metering module 200 and the control valve 300 is improved, resulting in better gas flow stability between the metering module 200 and the control valve 300, thereby enhancing the metering accuracy of the metering module 200.

[0051] In some embodiments, there are at least two arc segments 410, each arc segment 410 is arranged sequentially along the flow direction of the gas in the mounting frame 400, two adjacent arc segments 410 are connected to each other, one end of the arc segment 410 is connected to the metering module 200, and the other end of the arc segment 410 is connected to the control valve 300.

[0052] For example, there are two arc segments 410, which are interconnected and whose arc surfaces are arranged opposite each other. The metering module 200 is connected to one of the arc segments 410, and the control valve 300 is connected to the other arc segment 410.

[0053] Reference Figure 4 In some embodiments, the mounting bracket 400 further includes at least one straight section 420 that connects two adjacent arcuate sections 410.

[0054] By setting a straight segment 420, it is possible to connect two adjacent arc segments 410. At the same time, the distance between two adjacent arc segments 410 can be increased.

[0055] Understandably, in practical use, the length of the straight section 420 can be adjusted according to the installation space between the metering module 200 and the control valve 300.

[0056] Reference Figure 3 and Figure 4 In some embodiments, the mounting bracket 400 further includes at least one connecting segment 430, which connects the arc segment 410 to the metering module 200, and / or connects the arc segment 410 to the control valve 300.

[0057] The connection section 430 is provided to facilitate the connection between the mounting bracket 400 and the metering module 200, or to facilitate the connection between the mounting bracket 400 and the control valve 300.

[0058] Reference Figure 4 and Figure 5In some embodiments, the gas meter provided in this application also includes a grille 500, a connecting section 430 connecting the arc-shaped section 410 and the metering module 200, and the grille 500 is disposed within the connecting section 430.

[0059] By setting up a grille 500, the gas is evenly distributed between the metering module 200 and the control valve 300, reducing gas turbulence and uneven flow, and effectively improving the flow field at the connection between the metering module 200 and the control valve 300.

[0060] For example, grille 500 is disposed in the fourth air intake and is connected to connecting section 430.

[0061] Specifically, the grille 500 includes a frame 510 and at least one grille bar 520 disposed within the frame 510, the frame 510 being connected to the connecting section 430.

[0062] Furthermore, the number of grid bars 520 can be at least two. When the number of grid bars 520 is at least two, each grid bar 520 is arranged sequentially and parallelly within the frame 510. The spacing between two adjacent grid bars 520 can be equal.

[0063] It is understandable that the number and extension direction of the grid bars 520 can be adaptively set according to actual needs. When the number of grid bars is at least two, the spacing between two adjacent grid bars 520 can also be adaptively set according to actual needs. For example, the number of grid bars 520 can be three.

[0064] Reference Figure 2 , Figure 6 and Figure 7 In some embodiments, the gas meter also includes a rectifier 600, which is disposed within the gas meter housing 100. The rectifier 600 has multiple parallel rectifier channels 621, which are connected to the first air inlet 110. The gas meter housing 100 has a receiving cavity 130, through which the rectifier channels 621 are connected to the metering module 200.

[0065] The rectifier 600 is also located in the receiving cavity 130. The air inlet end of the rectifier channel 621 is connected to the first air inlet 110 so that after the gas enters the receiving cavity 130 through the first air inlet 110, it will flow to the rectifier channel 621. Then, the gas entering the receiving cavity 130 can be rectified through multiple rectifier channels 621, and the chaotic airflow can be rectified into an orderly airflow.

[0066] The outlet end of the rectifier channel 621 is connected to the second air inlet 210 of the metering module 200 through the receiving cavity 130. The gas flowing into the receiving cavity 130 through the rectifier channel 621 can flow into the metering module 200 through the receiving cavity 130. The rectifier 600 is located close to the first air inlet 110 so that the air inlet end of the rectifier channel 621 can be connected to the first air inlet 110.

[0067] In the prior art, when the gas enters the gas meter housing through the gas inlet, the distribution and flow of the gas are relatively chaotic, which leads to an unstable gas flow field inside the gas meter housing. Consequently, the gas flowing into the metering module 200 is relatively chaotic, affecting the metering accuracy of the metering module 200.

[0068] The gas meter provided in this embodiment of the application, by setting multiple parallel rectification channels 621 on the rectifier 600, ensures that the gas entering the gas meter housing 100 through the first air inlet 110 flows to the metering module 200 through the rectification channels 621. By setting the rectification channels 621, the chaotic airflow entering the gas meter housing 100 through the first air inlet 110 is rectified into an orderly airflow, reducing the irregularity of the gas flow, thereby optimizing the gas flow field and improving the stability of the airflow. This results in better stability of the airflow entering the metering module 200, improving the metering accuracy of the metering module 200. Furthermore, the parallel alignment of the rectification channels 621 ensures that the flow direction and velocity of the gas flowing out of each rectification channel 621 are similar, thereby reducing mutual interference and non-uniformity of the gas after flowing out of the rectification channels 621, improving the stability of the gas flowing out of the rectification channels 621, and thus improving the rectification effect of the rectifier 600.

[0069] Reference Figure 6 and Figure 7 In some embodiments, the rectifier 600 includes a base plate 610 and a plurality of rectifier plates 620 disposed on the base plate 610. The rectifier plates 620 are arranged sequentially at intervals, and a rectification channel 621 is formed between two adjacent rectifier plates 620.

[0070] A base plate 610 is provided to support and fix the rectifier plate 620. Multiple parallel rectifier plates 620 are arranged to form a rectification channel 621 between adjacent rectifier plates 620. This simplifies the structure of the rectifier component 600.

[0071] For example, the rectifier plate 620 is a flat, thin plate, making the rectification channel 621 a straight channel. This facilitates the flow of gas within the rectification channel 621, resulting in a smoother flow and less pressure loss. Making the rectifier plate 620 a thin plate allows for a larger cross-sectional area of ​​the rectification channel 621 formed between adjacent rectifier plates 620, thereby increasing the conveying capacity of the rectification channel 621 and reducing pressure loss during gas flow.

[0072] Understandably, the number of rectifier plates 620 can be adapted to the dimensions of the base plate 610, the pressure loss of the gas meter, and actual needs. For example, the number of rectifier plates 620 can be ten.

[0073] In practice, the spacing between two adjacent rectifier boards 620 is equal.

[0074] This ensures that the spacing between each rectifier channel 621 is equal. The equally spaced rectifier channels 621 optimize the flow path of the gas, reduce unnecessary resistance, and thus lower pressure loss. Furthermore, the multiple equally spaced rectifier channels 621 can evenly distribute the gas, ensuring a relatively consistent flow rate in each rectifier channel 621.

[0075] Reference Figure 6 and Figure 7 In some embodiments, the base plate 610 includes a first segment 611, a second segment 612, and a third segment 613 arranged sequentially. The first segment 611 and the third segment 613 are parallel to each other, and the second segment 612 is inclined relative to the first segment 611. The first segment 611 is opposite to the first air inlet 110, and the distance between the third segment 613 and the plane containing the first air inlet 110 is less than the distance between the first segment 611 and the plane containing the first air inlet 110. The rectifier plate 620 is at least partially disposed on the third segment 613.

[0076] The second segment 612 is inclined relative to the first segment 611 and the third segment 613, and the angle between the second segment 612 and the first segment 611 is an obtuse angle. Similarly, the angle between the second segment 612 and the third segment 613 is also an obtuse angle. This makes the flow of gas through the first segment 611 to the third segment 613 relatively smooth.

[0077] In this embodiment, the gas meter housing 100 has a top surface 140, and a first air inlet 110 is located on the top surface 140, meaning the plane of the top surface 140 is the same plane as the plane of the first air inlet 110. A first segment 611 is located below and opposite the first air inlet 110. The distance between the first segment 611 and the plane of the top surface 140 is greater than the distance between the third segment 613 and the plane of the top surface 140, meaning the third segment 613 is higher than the first segment 611. A gas flow area is formed between the bottom plate 610 and the top surface 140, and the cross-sectional area of ​​the flowable area between the first segment 611 and the top surface 140 is greater than the cross-sectional area of ​​the flowable area between the third segment 613 and the top surface 140. Therefore, after the gas flows from the first segment 611 to the third segment 613, the gas flow area narrows, thereby increasing the gas flow rate.

[0078] It is understandable that the greater the distance between the plane containing the first segment 611 and the plane containing the third segment 613, the greater the pressure loss of the gas flow. Therefore, the distance between the plane containing the first segment 611 and the plane containing the third segment 613 can be adjusted according to the overall pressure loss of the gas meter. For example, the distance between the plane containing the first segment 611 and the plane containing the third segment 613 can be 6mm.

[0079] The rectifier plate 620 is at least partially located on the third section 613. After the gas flows into the gas meter housing 100 through the first air inlet 110, the flow direction of the gas changes to flow along the first section 611. Due to the change in the flow direction of the gas, the pressure and velocity distribution of the gas may be uneven. At this time, the first section 611 can act as a buffer section for the gas to reduce the instability when the gas enters the rectifier channel 621.

[0080] Furthermore, the rectifier plate 620 is disposed on the side of the base plate 610 facing the top surface 140, and the rectifier plate 620 is perpendicular to the base plate 610 to facilitate the flow of gas within the rectifier channel 621. The distance between the rectifier plate 620 and the top surface 140 can be adaptively set according to actual needs.

[0081] In some examples, the rectifier 620 has opposing first and second ends, the first end being located on one of the first segment 611, the second segment 612 and the third segment 613, and the second end being located on the side of the third segment 613 away from the second segment 612. The second ends of each rectifier 620 are located on the same straight line, and the straight line is perpendicular to each other with respect to the rectifier 620.

[0082] Reference Figure 6 In practice, the first segment 611, the second segment 612 and the third segment 613 are arranged sequentially along the first direction, and the extension direction of the rectifier plate 620 is parallel to the first direction.

[0083] The first direction is Figure 6 The direction indicated by the middle arrow also represents the flow direction of the gas within the rectifier channel 621. After flowing into the gas meter housing 100 through the first air inlet 110, the gas flows sequentially through the first section 611, the second section 612, and the third section 613. The extension direction of the rectifier plate 620 is parallel to the first direction; that is, the extension direction of the rectifier channel 621 is parallel to the first direction, to facilitate the flow of gas through the rectifier channel 621 and reduce pressure loss during gas flow within the rectifier channel 621.

[0084] In some examples, the length of the third segment 613 in the first direction is 1 / 3 to 1 / 2 of the overall length of the base plate 610 in the first direction. At least part of the rectifier plate 620 is connected to both the second segment 612 and the third segment 613, so that the length of the rectifier plate 620 is longer, which in turn makes the length of the rectification channel 621 longer, which is beneficial to improving the stability and uniformity of the airflow flowing out through the rectification channel 621.

[0085] It is understood that the longer the rectifier plate 620 is in the first direction, the greater the pressure loss of the gas when it flows through the rectifier channel 621. Therefore, the length of the rectifier plate 620 in the first direction can be adapted to the overall pressure loss of the gas meter and actual needs. This embodiment does not impose any restrictions on this.

[0086] Reference Figure 6 and Figure 7 In some embodiments, the rectifier 600 further includes a baffle 630 that surrounds at least a portion of the periphery of the base plate 610.

[0087] The outlet of the rectifier channel 621 is located on the first side of the base plate 610, and the baffle 630 is arranged around the remaining sides except the first side to improve the strength of the base plate 610, while not affecting the flow of gas through the rectifier channel 621.

[0088] For example, the baffle 630 is connected to the inner wall of the gas meter housing 100. The baffle 630 and the inner wall of the gas meter housing 100 can be connected by other methods such as snap-fit, threaded connection, or adhesive bonding. In other embodiments, the rectifier 600 can be integrally formed with the gas meter housing 100.

[0089] In some embodiments, the baffle 630 has a recess 631 that is recessed toward the base plate 610, the recess 631 being used to avoid a portion of the structure of the gas meter housing 100.

[0090] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0091] In the embodiments of this application, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this application according to the specific circumstances.

[0092] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0093] Unless otherwise stated, the term "multiple" means two or more.

[0094] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the scope of this application is limited only by the appended claims.

Claims

1. A gas meter, characterized in that, include: A gas meter housing (100) having a first gas inlet (110) and a first gas outlet (120); A metering module (200) is disposed inside the gas meter housing (100) and is connected to the first air inlet (110). A control valve (300) is disposed inside the gas meter housing (100), and the outlet of the control valve (300) is connected to the first gas outlet (120); Mounting bracket (400) is disposed inside the gas meter housing (100). The mounting bracket (400) connects the metering module (200) and the inlet of the control valve (300). The mounting bracket (400) includes at least one arc segment (410) disposed at a corner of the mounting bracket (400).

2. The gas meter according to claim 1, characterized in that, There are at least two arc-shaped segments (410), and each arc-shaped segment (410) is arranged sequentially along the flow direction of the gas in the mounting frame (400). Two adjacent arc-shaped segments (410) are connected to each other. One end of the arc-shaped segment (410) is connected to the metering module (200), and the other end of the arc-shaped segment (410) is connected to the control valve (300).

3. The gas meter according to claim 2, characterized in that, The mounting bracket (400) further includes at least one straight section (420) that connects two adjacent arcuate sections (410).

4. The gas meter according to claim 1, characterized in that, The mounting bracket (400) further includes at least one connecting segment (430) that connects the arc segment (410) to the metering module (200), and / or, the connecting segment (430) that connects the arc segment (410) to the control valve (300).

5. The gas meter according to claim 4, characterized in that, It also includes a grille (500), the connecting section (430) connects the arc-shaped section (410) and the metering module (200), and the grille (500) is disposed within the connecting section (430).

6. The gas meter according to any one of claims 1-4, characterized in that, It also includes a rectifier (600), which is disposed inside the gas meter housing (100). The rectifier (600) has a plurality of parallel rectifier channels (621), which are connected to the first air inlet (110). The gas meter housing (100) has a receiving cavity (130), and the rectifier channel (621) is connected to the metering module (200) through the receiving cavity (130).

7. The gas meter according to claim 6, characterized in that, The rectifier (600) includes a base plate (610) and a plurality of rectifier plates (620) disposed on the base plate (610). The rectifier plates (620) are arranged sequentially at intervals, and the rectifier channel (621) is formed between two adjacent rectifier plates (620).

8. The gas meter according to claim 7, characterized in that, The spacing between two adjacent rectifier plates (620) is equal.

9. The gas meter according to claim 7, characterized in that, The base plate (610) includes a first segment (611), a second segment (612), and a third segment (613) arranged sequentially. The first segment (611) and the third segment (613) are parallel to each other. The second segment (612) is inclined relative to the first segment (611). The first segment (611) is opposite to the first air inlet (110). The distance between the third segment (613) and the plane where the first air inlet (110) is located is less than the distance between the first segment (611) and the plane where the first air inlet (110) is located. The rectifier plate (620) is at least partially disposed on the third segment (613).

10. The gas meter according to claim 7, characterized in that, The rectifier (600) further includes a baffle (630) surrounding at least a portion of the periphery of the base plate (610).

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