Gas flow calibrating device

Abstract

The utility model relates to the technical field of gas flow meters, in particular to a gas flow calibrating device which comprises a main body, a detecting assembly is arranged on the side face of the main body, and a gas filtering assembly is arranged on the side face of the detecting assembly. The motor and the switching mechanism are arranged in the electric actuator, the motor converts rotary motion into linear motion through gear transmission, the valve rod is pushed to move up and down, then the size of gas capable of being conveyed is accurately adjusted, and the adjusting valve has a large adjusting range in cooperation with the temperature sensor. The flow and temperature requirements under different working conditions can be met, the electric executing mechanism is simple in structure, reliable in work, long in service life and suitable for severe environments and high-temperature and high-pressure working conditions, calibrated gas is conveyed into the gas filtering box through the output pipe to be treated in a centralized mode, the treated gas can open the gas circulating pump, and the working efficiency is improved. And the gas enters the gas source again through the gas conveying pipe, so that the purpose of recycling the gas is achieved.

Description

Technical Field

[0001] This utility model relates to the field of gas flow meter technology, specifically a gas flow calibration device. Background Technology

[0002] A gas flow meter is an instrument installed in a pipeline to measure the flow rate of gas within the pipeline. Before a gas flow meter leaves the factory or is used, its metering performance must be verified to ensure the accuracy of the gas flow rate measurement.

[0003] Currently, when calibrating gas flow meters, the gas flow rate cannot be controlled. Excessive gas flow can easily damage the gas flow meter, while insufficient flow will affect the calibration effect and prevent accurate data. Moreover, most of the gas discharged after calibration is directly released into the external environment, which can easily cause an explosion hazard, resulting in poor safety of the calibration process, waste of resources, and increased calibration costs. Therefore, a gas flow calibration device is needed to improve the above problems. Utility Model Content

[0004] To address the current challenges in calibrating gas flow meters, where uncontrollable gas flow rates can damage the meter (excessive flow can damage it, while insufficient flow can impair calibration and prevent accurate data collection), and where the discharged gas after calibration is often directly released into the environment (posing a significant explosion hazard), this invention aims to provide a gas flow calibration device to solve the problems described in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A gas flow rate testing device includes a main body, a detection component is provided on the side of the main body, and a gas filter component is provided on the side of the detection component.

[0007] The detection assembly includes a standard flow generator, a delivery pipe is fixedly connected to the top of the standard flow generator, a first connecting pipe is fixedly connected to the side of the delivery pipe, a valve chamber is fixedly connected to the side of the first connecting pipe, an electric actuator is installed on the top of the valve chamber, and a valve stem is fixedly connected to the output end of the electric actuator.

[0008] The air filtration assembly includes a support plate, a protective box is fixedly connected to the top of the support plate, a test gauge is installed inside the protective box, and an air filtration box is installed inside the support plate.

[0009] As a preferred embodiment of this utility model, a second connecting pipe is fixedly connected to the side of the valve stem, a temperature sensor is fixedly connected to the side of the second connecting pipe, a connecting pipe is fixedly connected to the side of the temperature sensor, and the connecting pipe extends into the interior of the protective box.

[0010] As a preferred embodiment of this utility model, an output pipe is fixedly connected to the side of the protective box, a valve is provided on the side of the output pipe, and the output pipe extends into the interior of the air filter box.

[0011] As a preferred embodiment of this utility model, the main body includes a gas source, and a gas delivery pipe is fixedly connected to the top of the gas source, the gas delivery pipe extending into the interior of the air filter box.

[0012] As a preferred embodiment of this utility model, a gas circulation pump is provided on the side of the gas transmission pipe, and the gas transmission pipe passes through the gas circulation pump.

[0013] As a preferred embodiment of this utility model, a control box is fixedly connected to the side of the gas source, and a working indicator light is fixedly connected to the side of the control box.

[0014] As a preferred embodiment of this utility model, a display screen is fixedly connected to the side of the control box, and adjustment buttons are provided on the side of the control box.

[0015] As a preferred embodiment of this utility model, the control box is provided with operation buttons on its side, and there are several operation buttons.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. In this utility model, the electric actuator has a motor and a conversion mechanism inside. The motor converts the rotary motion into linear motion through gear transmission, which pushes the valve stem to move up and down, thereby accurately adjusting the amount of gas that can be transported. In conjunction with a temperature sensor, the regulating valve has a large adjustment range, which can meet the flow and temperature requirements under different working conditions. The electric actuator has a simple structure, reliable operation, long service life, and is suitable for harsh environments and high temperature and high pressure conditions.

[0018] 2. In this utility model, the calibrated gas is transported to the filter box for centralized processing via the output pipe. The processed gas can then be re-entered into the gas source through the gas delivery pipe by turning on the gas circulation pump, thereby achieving the purpose of gas recycling. The gas circulation pump adopts a high-efficiency design, which can quickly circulate and transport gas, ensuring the continuity and stability of gas flow, thereby improving production efficiency. During operation, it consumes little energy and does not produce harmful emissions. Long-term use can save energy costs for enterprises and reduce negative environmental impacts. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the air source control component of this utility model;

[0021] Figure 3 This is a schematic diagram of the detection component structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the air filtration assembly structure of this utility model.

[0023] In the diagram: 1. Main body; 101. Gas source; 102. Gas delivery pipe; 103. Gas circulation pump; 104. Control box; 105. Display screen; 106. Working indicator light; 107. Adjustment button; 108. Operation button; 2. Detection component; 201. Standard flow generator; 202. Delivery pipe; 203. First connecting pipe; 204. Valve chamber; 205. Electric actuator; 206. Valve stem; 207. Second connecting pipe; 208. Temperature sensor; 209. Connecting pipe; 3. Gas filtration component; 301. Support plate; 302. Gas filtration box; 303. Protective box; 304. Test gauge; 305. Output pipe; 306. Valve. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example: Please refer to Figures 1-4 The gas flow rate calibration device shown includes a main body 1, a detection component 2 is provided on the side of the main body 1, and a gas filter component 3 is provided on the side of the detection component 2.

[0026] In this embodiment, reference is made to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the detection component 2 includes a standard flow generator 201, with a delivery pipe 202 fixedly connected to the top of the standard flow generator 201. A first connecting pipe 203 is fixedly connected to the side of the delivery pipe 202, and a valve chamber 204 is fixedly connected to the side of the first connecting pipe 203. An electric actuator 205 is installed on the top of the valve chamber 204, and a valve stem 206 is fixedly connected to the output end of the electric actuator 205. The air filtration component 3 includes a support plate 301, with a protective box 303 fixedly connected to the top of the support plate 301. The interior of the protective box 303 is equipped with a filter. The filter box 302 is installed inside the support plate 301. The electric actuator 205 has a motor and a conversion mechanism inside. The motor converts the rotary motion into linear motion through gear transmission, which pushes the valve stem 206 to move up and down, thereby accurately adjusting the amount of gas that can be transported. In conjunction with the temperature sensor 208, the regulating valve 306 has a large adjustment range, which can meet the flow and temperature requirements under different working conditions. The electric actuator has a simple structure, reliable operation, long service life, and is suitable for harsh environments and high temperature and high pressure conditions.

[0027] The valve stem 206 is fixedly connected to a second connecting pipe 207, and a temperature sensor 208 is fixedly connected to a side of the second connecting pipe 207. A connecting pipe 209 is fixedly connected to a side of the temperature sensor 208, and the connecting pipe 209 extends into the interior of the protective box 303. An output pipe 305 is fixedly connected to a side of the protective box 303, and a valve 306 is installed on the side of the output pipe 305. The output pipe 305 extends into the interior of the gas filter box 302. The calibrated gas is transported to the gas filter box 302 for centralized processing using the output pipe 305. The processed gas can be turned on by opening the gas circulation pump 103, so that the gas can re-enter the gas source 101 through the gas delivery pipe 102, thereby achieving the purpose of gas recycling.

[0028] In this embodiment, reference is made to Figure 1 and Figure 2As shown, the main body 1 includes a gas source 101, with a gas supply pipe 102 fixedly connected to the top of the gas source 101. The gas supply pipe 102 extends into the interior of the gas filter box 302. A gas circulation pump 103 is installed on the side of the gas supply pipe 102, through which the gas supply pipe 102 passes. A control box 104 is fixedly connected to the side of the gas source 101. A work indicator light 106 is fixedly connected to the side of the control box 104. A display screen 105 is fixedly connected to the side of the control box 104. Adjustment buttons 107 and operation buttons 108 are installed on the side of the control box 104. Several operation buttons 108 are provided. The gas circulation pump 103 adopts a high-efficiency design, which can quickly circulate and transmit gas, ensuring the continuity and stability of gas flow, thereby improving production efficiency. During operation, it has low energy consumption and does not produce harmful emissions. Long-term use can save energy costs for enterprises and reduce negative environmental impacts.

[0029] In this solution, a gas flow rate calibration device is used by placing the gauge 304 to be tested inside the protective box 303. The device is operated using the display screen 105, adjustment buttons 107, and operation buttons 108. The electric actuator 205 controls the tilt angle of the valve stem 206 to control the gas flow rate. In conjunction with the temperature sensor 208, the regulating valve 306 has a large adjustment range to meet the flow rate and temperature requirements under different working conditions. At the same time, the gas circulation pump 103 is started, allowing the gas from the gas supply pipe 102 to quickly enter the gauge 304 to be tested. The discharged gas enters the output pipe 305, and the waste gas is discharged into the filter box 302 using the valve 306. After being processed by the filter box 302, the gas returns to the gas source 101 for recycling.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gas flow prover device comprising a body (1), characterised in that: The side of the main body (1) is provided with a detection assembly (2), and the side of the detection assembly (2) is provided with a gas filtering assembly (3); The detection assembly (2) comprises a standard flow generator (201), the top of the standard flow generator (201) is fixedly connected with a conveying pipe (202), the side of the conveying pipe (202) is fixedly connected with a first connecting pipe (203), the side of the first connecting pipe (203) is fixedly connected with a valve chamber (204), the top of the valve chamber (204) is installed with an electric actuator (205), and the output end of the electric actuator (205) is fixedly connected with a valve rod (206); The gas filtering assembly (3) comprises a supporting plate (301), the top of the supporting plate (301) is fixedly connected with a protection box (303), the inside of the protection box (303) is provided with a table to be detected (304), and the inside of the supporting plate (301) is provided with a gas filtering box (302).

2. A gas flow calibration device according to claim 1, characterised in that: The side of the valve rod (206) is fixedly connected with a second connecting pipe (207), the side of the second connecting pipe (207) is fixedly connected with a temperature sensor (208), the side of the temperature sensor (208) is fixedly connected with a communication pipe (209), and the communication pipe (209) extends into the inside of the protection box (303).

3. A gas flow calibration device according to claim 1, wherein: The side of the protection box (303) is fixedly connected with an output pipe (305), the side of the output pipe (305) is provided with a valve (306), and the output pipe (305) extends into the inside of the gas filtering box (302).

4. The gas flow calibration device of claim 1, wherein: The main body (1) comprises a gas source (101), the top of the gas source (101) is fixedly connected with a gas conveying pipe (102), and the gas conveying pipe (102) extends into the inside of the gas filtering box (302).

5. A gas flow calibration device according to claim 4, wherein: The side of the gas conveying pipe (102) is provided with a gas circulating pump (103), and the gas conveying pipe (102) passes through the gas circulating pump (103).

6. A gas flow calibration device according to claim 4, wherein: The side of the gas source (101) is fixedly connected with a control box (104), the side of the control box (104) is fixedly connected with a working indicating lamp (106).

7. A gas flow calibration device according to claim 6, wherein: The side of the control box (104) is fixedly connected with a display screen (105), and the side of the control box (104) is provided with an adjusting button (107).

8. A gas flow calibration device according to claim 7, characterised in that: The side of the control box (104) is provided with an operation button (108), and the operation button (108) is provided with a plurality of.

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