Ultrasonic gas meter with filter bag device

Abstract

The utility model relates to a gas metering technical field, concretely is an ultrasonic gas meter with filter bag device, the top of steel shell main part is provided with air inlet and gas outlet, and the below of gas outlet is connected with valve, and the below of valve is connected with ultrasonic sensor through bend pipe, and the periphery of ultrasonic sensor is provided with support no.

Description

Technical Field

[0001] This utility model relates to the field of gas metering technology, specifically an ultrasonic gas meter with a filter bag device. Background Technology

[0002] Ultrasonic gas meters are important devices for measuring gas consumption. With technological advancements, ultrasonic gas meters have become increasingly widely used due to their high accuracy and lack of moving mechanical parts. However, impurities and particulate matter in the gas can affect the normal operation of the ultrasonic sensor, leading to inaccurate measurements or equipment damage.

[0003] In existing technologies, impurities and particulate matter are filtered through the built-in filter of the gas meter. However, since the outer shell cannot be effectively sealed, external impurities can intrude and filter them ineffectively. Furthermore, the disassembly and assembly process for cleaning the filter is relatively complex, which affects the overall structural sealing and stability of the filter, resulting in inconvenience in maintenance and causing additional problems for the stable and continuous use of the gas meter.

[0004] Based on the above reasons, this utility model designs an ultrasonic gas meter with a filter bag device. Through a simple and reasonable sealing design and a quick disassembly and assembly structure, the housing and filter can achieve a better sealing state. Furthermore, due to the reasonable disassembly and assembly process, the seal will not be further affected, ensuring the stability of the filter's effective filtration effect and thus protecting the normal and efficient operation of the gas meter. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an ultrasonic gas meter with a filter bag device. Through a simple and reasonable sealing design and a quick disassembly and assembly structure, the housing and filter can achieve a better sealing state. Furthermore, due to the reasonable disassembly and assembly process, the seal will not be further affected, ensuring the stability of the filter's effective filtration effect and thus protecting the normal and efficient operation of the gas meter.

[0006] To achieve the above objectives, this utility model provides an ultrasonic gas meter with a filter bag device, including a steel shell body. The top of the steel shell body is provided with an air inlet and an air outlet. The lower part of the air outlet is connected to a valve. The lower part of the valve is connected to an ultrasonic sensor through a bend. The ultrasonic sensor is surrounded by a bracket one and a bracket two. After the bracket one and bracket two are combined, their tops are fixed to a pre-set mounting bracket inside the steel shell body by screws. A filter device is provided outside the bracket one and bracket two, and the filter device is fastened to the bracket one and bracket two by cable ties.

[0007] Both bracket one and bracket two have a hollow design.

[0008] Bracket 1 and Bracket 2 are secured by buckles at their bottom.

[0009] The filtration device is a filter bag.

[0010] The filter element of the filter bag is a single-layer filter material.

[0011] The main body of the steel shell is made of galvanized steel sheet and the surface is made of pure polyurethane resin.

[0012] The steel shell body includes an upper shell and a lower shell. A sealing ring is provided between the upper shell and the lower shell, and sealant is provided between the upper shell and the lower shell and inside the sealing ring.

[0013] The upper housing is equipped with an integrated terminal block.

[0014] The sealing ring is made of 304 stainless steel.

[0015] Compared with existing technologies, this invention directly incorporates a filter device around the ultrasonic sensor, ensuring that the gas inside the steel casing is filtered before entering the sensor, thus providing protection and improving the metering accuracy and lifespan of the gas meter. The ultrasonic sensor and its accompanying filter device can be directly installed on the steel casing using a single screw via clip-on brackets one and two, achieving quick assembly and disassembly and improving maintenance efficiency. Furthermore, the upper and lower casings are protected by a double layer of sealing rings and sealant, combined with galvanized steel plates and a pure polyester resin surface layer, providing good strength and sealing while also offering rust and corrosion resistance, making it suitable for use in more specialized environments. Attached Figure Description

[0016] Figure 1 This is a front cross-sectional view of the present invention.

[0017] Figure 2 This is an exploded view of the filtration device of this utility model.

[0018] Figure 3 This utility model's filter module connects to the video. Figure 1 .

[0019] Figure 4 This utility model's filter module connects to the video. Figure 2 .

[0020] Figure 5 This is a bottom view sectional view of the present invention.

[0021] Figure 6 This is a three-dimensional cross-sectional view of the present invention.

[0022] Figure 7 This is a schematic diagram showing the location of the terminals of this utility model.

[0023] Explanation of reference numerals in the attached figures: 1. Steel shell body, 1-1 valve, 1-2 filter device, 1-3 ultrasonic sensor, 1-4 air inlet, 1-5 air outlet, 1-6 mounting bracket, 2-1 bracket one, 2-2 bracket two, 2-3 cable tie, 2-4 gas passage, 3 screws, 4-1 upper shell, 4-2 lower shell, 4-3 sealant, 4-4 sealing ring, 4-5 integrated terminal block. Detailed Implementation

[0024] The present invention will now be further described with reference to the accompanying drawings.

[0025] See Figures 1-7 This utility model provides an ultrasonic gas meter with a filter bag device, including a steel shell body 1. The steel shell body 1 is characterized by having an air inlet 1-4 and an air outlet 1-5 at the top. The lower part of the air outlet 1-5 is connected to a valve 1-1. The lower part of the valve 1-1 is connected to an ultrasonic sensor 1-3 via a bend. The ultrasonic sensor 1-3 is surrounded by a bracket 2-1 and a bracket 2-2. After the brackets 2-1 and 2-2 are combined, their tops are fixed to a mounting bracket 1-6 pre-set inside the steel shell body 1 by screws 3. A filter device 1-2 is provided outside the brackets 2-1 and 2-2. The filter device 1-2 is fastened to the brackets 2-1 and 2-2 by cable ties 2-3.

[0026] The bracket 1 2-1 and bracket 2 2-2 are hollow designs.

[0027] Bracket 1 2-1 and Bracket 2 2-2 are secured by buckles at their bottom.

[0028] Filter devices 1-2 are filter bags.

[0029] The filter element of the filter bag is a single-layer filter material.

[0030] The main body of the steel shell 1 is a shell made of galvanized steel sheet with a surface of pure polyurethane resin.

[0031] The steel shell body 1 includes an upper shell 4-1 and a lower shell 4-2. A sealing ring 4-4 ​​is provided between the upper shell 4-1 and the lower shell 4-2. A sealant 4-3 is provided between the upper shell 4-1 and the lower shell 4-2 and inside the sealing ring 4-4.

[0032] The upper housing 4-1 is provided with an integral terminal block 4-5.

[0033] Sealing ring 4-4 ​​is made of 304 stainless steel.

[0034] Working principle: See Figures 1-7This invention requires minimal adjustment. When placing valve 1-1, it is positioned on bracket 2-1 at the location of ultrasonic sensor 1-3, and then placed into the lower housing 4-2. Valve 1-1 is then connected to the air outlet 1-5. Next, bracket 2-2 is installed above ultrasonic sensor 1-3. Brackets 2-1 and 2-2 are then connected and fixed with snap fasteners, ensuring their upper mounting positions are flush. Screws 3 are used to secure them to mounting bracket 1-6. The filter device 1-2 is then placed around the combined brackets 2-1 and 2-2, and cable ties 2-3 are used to secure it to the mounting grooves on brackets 2-1 and 2-2. Sealant 4-3 is applied around the lower housing 4-2, and sealing ring 4-4 ​​is installed. Finally, the upper housing 4-1 and lower housing 4-2 are assembled.

[0035] In operation, the gas enters the gas passage 2-4 inside the steel shell body 1 through the inlet 1-4. Under pressure, the gas passes through the filter device to remove impurities, and then enters the interior through the perforated brackets 2-1 and 2-2. After metering, it exits through the outlet 1-5 at the inlet of the ultrasonic sensor 1-3, thus filtering impurities from the gas entering the ultrasonic sensor 1-3. For maintenance, simply open the upper shell 4-1 and lower shell 4-2, unscrew the screws 3, remove and disassemble brackets 2-1 and 2-2, loosen the cable ties 2-3 to remove the filter device for cleaning and replacement, and maintain the ultrasonic sensor 1-3.

[0036] The above are merely preferred embodiments of this utility model, intended only to aid in understanding the method and core concept of this application. The scope of protection of this utility model is not limited to the above embodiments; all technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the scope of protection of this utility model.

[0037] This invention solves the shortcomings of existing technologies, such as the complex disassembly and assembly process for cleaning the internal filter of a gas meter, which affects the overall structural sealing, stability, and maintenance efficiency of the filter. By fixing the ultrasonic sensor with a detachable bracket and cooperating with the external filter, the filter can protect the ultrasonic sensor with only a simple structure and installation steps. Moreover, the disassembly and maintenance process is very simple and will not affect the stability of the subsequent filtration effect, which greatly helps to facilitate the effective maintenance of the gas metering device.

Claims

1. An ultrasonic gas meter with a filter bag device, comprising a steel casing (1), characterized in that, The top of the steel shell body (1) is provided with an air inlet (1-4) and an air outlet (1-5). The lower part of the air outlet (1-5) is connected to a valve (1-1). The lower part of the valve (1-1) is connected to an ultrasonic sensor (1-3) through a bend. The outer periphery of the ultrasonic sensor (1-3) is provided with a bracket (2-1) and a bracket (2-2). After the bracket (2-1) and the bracket (2-2) are combined, their tops are fixed to a mounting bracket (1-6) preset inside the steel shell body (1) by screws (3). A filter device (1-2) is provided outside the bracket (2-1) and the bracket (2-2). The filter device (1-2) is fastened to the bracket (2-1) and the bracket (2-2) by cable ties (2-3).

2. The ultrasonic gas meter with filter bag device according to claim 1, characterized in that, The first bracket (2-1) and the second bracket (2-2) are hollow designs.

3. The ultrasonic gas meter with filter bag device according to claim 2, characterized in that, The first bracket (2-1) and the second bracket (2-2) are fixed by buckles at their bottoms.

4. The ultrasonic gas meter with filter bag device according to claim 1, characterized in that, The filtration device (1-2) is a filter bag.

5. The ultrasonic gas meter with filter bag device according to claim 4, characterized in that, The filter bag has a single-layer filter element.

6. The ultrasonic gas meter with filter bag device according to claim 1, characterized in that, The main body of the steel shell (1) is a shell made of galvanized steel plate with a surface of pure polyurethane resin.

7. The ultrasonic gas meter with filter bag device according to claim 6, characterized in that, The steel shell body (1) includes an upper shell (4-1) and a lower shell (4-2). A sealing ring (4-4) is provided between the upper shell (4-1) and the lower shell (4-2). A sealant (4-3) is provided between the upper shell (4-1) and the lower shell (4-2) and inside the sealing ring (4-4).

8. The ultrasonic gas meter with filter bag device according to claim 7, characterized in that, The upper housing (4-1) is provided with an integral terminal block (4-5).

9. The ultrasonic gas meter with filter bag device according to claim 8, characterized in that, The sealing ring (4-4) is made of 304 stainless steel.

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