High-pressure gas automatic calibration device for pressure gauge detection

Abstract

The embodiment of the utility model discloses a high-pressure gas automatic calibration device for pressure gauge detection, relates to the technical field of emergency rescue equipment, and can more quickly calibrate electronic pressure gauges in batches. The air pressure gauge comprises an output port (1), an air inlet (6), a valve (7), an air pressure gauge disc (8) and equipment internal components (9), gas is input from the gas inlet (6), is input into the equipment internal part (9) through the gas conveying pipe, and is output from the output port (1); a valve (7) is arranged between the gas inlet (6) and the equipment internal part (9) and is used for adjusting the flow of gas input into the gas inlet (6); and the barometer disc (8) is used for displaying the air pressure passing through the valve (7). According to the high-pressure gas automatic calibration device for pressure gauge detection provided by the embodiment of the utility model, batch calibration can be simultaneously carried out on a plurality of electronic pressure gauges through the plurality of output ports (1), and the calibration efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of emergency rescue equipment technology, and in particular to an automatic calibration device for high-pressure gas used in pressure gauge detection. Background Technology

[0002] In modern industrial production, scientific research, and many other fields involving pressure measurement, electronic pressure gauges serve as crucial pressure monitoring tools, and their accuracy is paramount. The calibration of electronic pressure gauges directly impacts the reliability of subsequent pressure measurement data, thereby affecting the accuracy of the entire production process and experimental results.

[0003] Traditional electronic pressure gauge calibration methods have many drawbacks. Adjusting the calibrated air pressure value relies on manual operation. Operators need to rely on experience and professional skills to carefully rotate the adjustment knob to change the air pressure. This is not only cumbersome and time-consuming, but also highly susceptible to errors due to human factors.

[0004] Furthermore, traditional calibration equipment has significant limitations in efficiency, typically only calibrating a single electronic pressure gauge at a time. In scenarios involving large-scale production or the need to calibrate pressure gauges in batches, such as the numerous pressure monitoring points in chemical plants or the pressure gauge calibration tasks in a large number of experimental devices in research institutes, calibrating them one by one using traditional methods would consume a large amount of manpower, material resources, and valuable time, resulting in low efficiency and severely slowing down production and research progress.

[0005] Therefore, how to improve the adjustment method of calibration pressure value in the testing of electronic pressure gauges, so as to calibrate electronic pressure gauges more quickly, has become a research topic. Utility Model Content

[0006] This invention provides an automatic calibration device for high-pressure gas used in pressure gauge testing, which enables faster batch calibration of electronic pressure gauges.

[0007] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0008] An automatic calibration device for high-pressure gas for pressure gauge detection, the automatic calibration device for high-pressure gas includes: an output port (1), an inlet port (6), a valve (7), a pressure gauge (8), and internal components (9).

[0009] Gas is input from the inlet (6) and enters the internal components (9) of the equipment through the gas delivery pipe, and is then output from the outlet (1);

[0010] A valve (7) is installed between the air inlet (6) and the internal components (9) of the equipment to regulate the gas flow rate into the air inlet (6);

[0011] The barometer (8) is used to display the air pressure passing through the valve (7).

[0012] The high-pressure gas automatic calibration device for pressure gauge testing provided in this embodiment of the present invention can perform batch calibration for multiple electronic pressure gauges simultaneously through multiple output ports (1), thereby improving the calibration efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 Schematic diagram of a high-pressure gas automatic calibration device;

[0015] Figure 2 This is a schematic diagram of the internal air passage components of the equipment;

[0016] Output port 1, display screen 2, operation buttons 3, emergency stop button 4, power button 5, air inlet 6, valve 7, pressure gauge 8, internal components 9, internal air circuit components 9-1; 9-1-1 air inlet sensor, 9-1-2 safety valve, 9-1-3 first high-pressure solenoid valve, 9-1-4 first flow limiting valve, 9-1-5 high-pressure transmitter, 9-1-6 second high-pressure solenoid valve, 9-1-7 second flow limiting valve, 9-1-8 pressure reducer, 9-1-9 medium-pressure solenoid valve. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments of this utility model will be described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in the specification of this utility model means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say that an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connections or couplings. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0018] This utility model provides an automatic calibration device for high-pressure gas used in pressure gauge testing, such as... Figure 1 , 2 As shown, it includes: an output port (1), an air inlet (6), a valve (7), a pressure gauge (8), and internal components (9).

[0019] Gas is input from the inlet (6) and enters the internal components (9) of the equipment through the gas delivery pipe, and is then output from the outlet (1);

[0020] A valve (7) is installed between the air inlet (6) and the internal components (9) of the equipment to trigger the opening and closing of the air passage;

[0021] The pressure gauge (8) is used to display the air pressure passing through the valve (7). Specifically, the pressure gauge (8) is used to display... Figure 2 The air pressure value at the medium and high pressure transmitter, the pressure gauge transmitter transmits the current pressure in the pipeline to the industrial control module and the air pressure gauge (8).

[0022] like Figure 2 As shown, the internal air circuit component (9-1) of the internal component (9) of the equipment includes: an air intake sensor (9-1-1) installed on the valve (7), the reading of which is displayed on the pressure gauge (8); the valve (7) is connected to the first high-pressure solenoid valve (9-1-3), which is then connected to one end of the outlet pipe through the first flow limiting valve (9-1-4); the first high-pressure solenoid valve (9-1-3) is also connected in parallel with the high-pressure transmitter (9-1-5). The air intake sensor (9-1-1) measures the intake pressure, and the measurement data of the air intake sensor (9-1-1) is transmitted to the industrial control module. For example, if the operator manually sets the pressure to 20MPa for calibration of the electronic gauge, and the intake pressure is less than 20MPa at this time, according to... Figure 2 The first high-pressure solenoid valve (9-1-3) of the air inlet (6) will not be opened, and the reading of the air inlet sensor (9-1-1) will not be displayed on the pressure gauge (8).

[0023] The other end of the gas pipeline is connected in sequence to a second high-pressure solenoid valve (9-1-6) and a second flow limiting valve (9-1-7); the second high-pressure solenoid valve (9-1-6) is connected in parallel to a pressure reducer (9-1-8) and a medium-pressure solenoid valve (9-1-9). The gas outlet pipeline is provided with the first to the nth outlet ports (1).

[0024] Optionally, the front of the high-pressure gas automatic calibration device is provided with an operation panel, on which a display screen (2), operation buttons (3), an emergency stop button (4), and a power button (5) are installed. It should be noted that these electronic industrial control components can be directly purchased from existing devices and directly installed on printed circuit boards. The control programs corresponding to these electronic industrial control components can be implemented using simple programming techniques that are currently known and can be mastered by those skilled in the art. Since these are common knowledge in this field, they will not be described in detail in this embodiment.

[0025] In practical applications, the principles of manual air pressure adjustment include: Figure 2As shown, the air inlet is connected to an air pump or other air source. Open the valve and input the air pressure value using the operation button (3). For example, if you want the electronic watch to be calibrated at 20MPa, input 20 into the operation button (3). (This is a very simple numerical input program.) The airflow at the air inlet passes through the valve and is collected by the air inlet sensor (9-1-1) and the air pressure value is greater than 20MPa. Then the first high-pressure solenoid valve (9-1-3) on the left opens the air inlet. At this time, the first flow limiting valve (9-1-4) can be manually adjusted to limit the flow to prevent the air intake from exceeding the set 20MPa too much at once. It will then need to be automatically adjusted to 20MPa, which will waste time and gas. The gas passes through the first high-pressure solenoid valve (9-1-3) and the first flow limiting valve. When (9-1-4), the high pressure transmitter collects and transmits the data to the industrial control module (such as the printed circuit board) and the air pressure gauge (8). If the current air pressure value is less than 20MPa, air continues to be introduced. If the current air pressure value is higher than 20MPa, air needs to be released. If it exceeds 20MPa by too much, the second high pressure solenoid valve (9-1-6) opens and the air is released through the second flow limiting valve (9-1-7). When the pressure is released to close to 20MPa, the second high pressure solenoid valve (9-1-6) is closed and the rightmost medium pressure solenoid valve is opened at the same time. The air is released through the pressure reducer and the medium pressure solenoid valve, so that the current air pressure, that is, the air pressure at the output port, reaches 20MPa. Then the medium pressure solenoid valve is closed. After the electrical meter is calibrated, press the operation button (3) to release the air.

[0026] Specifically, high-pressure solenoid valves, high-pressure transmitters, flow restrictors, pressure reducers, and medium-pressure solenoid valves can all be purchased directly from existing products on the market and assembled into equipment samples. The specific technical details of these components are also existing technologies, and will not be elaborated in this embodiment.

[0027] The solution in this embodiment can accurately, quickly, and in batches calibrate electronic pressure gauges, overcoming the shortcomings of traditional calibration equipment and improving calibration efficiency.

[0028] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. The above descriptions are merely specific implementations of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A high pressure gas automatic calibration device for pressure gauge detection, characterized in that, The high-pressure gas automatic calibration device comprises an output port (1), an air inlet (6), a valve (7), an air pressure dial (8) and internal components (9) of the device; The gas is input from the air inlet (6) and is input to the internal components (9) of the device through a gas pipeline, and is then output from the output port (1); The valve (7) is installed between the air inlet (6) and the internal components (9) of the device, and is used for triggering the on-off of the gas circuit; The air pressure dial (8) is used for displaying the air pressure value; The internal gas circuit components (9-1) in the internal components (9) of the device comprise: An air inlet sensor (9-1-1) installed on the valve (7); The valve (7) is connected with a first high-pressure electromagnetic valve (9-1-3), and the first high-pressure electromagnetic valve (9-1-3) is connected with one end of an air outlet pipeline through a first flow limiting valve (9-1-4); The first high-pressure electromagnetic valve (9-1-3) is also connected with a high-pressure pressure transmitter (9-1-5) in parallel.

2. The apparatus for automatic calibration of high pressure gas for pressure gauge detection according to claim 1, characterized in that, The other end of the air pipeline is connected with a second high-pressure electromagnetic valve (9-1-6) and a second flow limiting valve (9-1-7) in sequence; The second high-pressure electromagnetic valve (9-1-6) is connected with a pressure reducer (9-1-8) and a medium-pressure electromagnetic valve (9-1-9) in parallel.

3. A high pressure gas automatic calibration apparatus for pressure gauge detection according to claim 2, characterized in that, The air outlet pipeline is provided with the first to nth output ports (1).

4. The apparatus for automatic calibration of high pressure gas for pressure gauge detection according to claim 1, wherein, The front of the high-pressure gas automatic calibration device is provided with an operation panel, and the operation panel is installed with a display screen (2), operation buttons (3), an emergency stop button (4) and a power key (5).

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