Pressure calibration device

Abstract

The utility model discloses a pressure calibration device. The device comprises a pressurizing table, a pressure output pipe inserted into one end of the pressurizing table, a direct conveying pipeline inserted into one end of the pressure output pipe, a main four-way joint arranged between the direct conveying pipeline and the pressure output pipe, a first flow dividing pipe inserted into one end of the main four-way joint, a second flow dividing pipe inserted into the other end of the main four-way joint, and a first secondary pipeline arranged at one end of the first flow dividing pipe, the secondary pipeline is arranged at one end of the second flow dividing pipe, the gas collecting pipe is arranged at one end of the direct conveying pipeline, the secondary four-way joint is arranged between the gas collecting pipe and the direct conveying pipeline, and the calibration tool is inserted into one end of the gas collecting pipe; wherein one end of the secondary four-way joint is communicated with the first secondary pipeline in an inserted mode, the other end of the secondary four-way joint is communicated with the second secondary pipeline in an inserted mode, and main pressure regulating valves are arranged on the direct conveying pipeline, the first secondary pipeline and the second secondary pipeline. According to the utility model, through the mutual cooperation of the pressurizing table, the direct conveying pipeline, the first pipeline and the second pipeline, a pressure controller can be replaced, and the cost of pressure calibration is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial equipment technical field, concretely relates to a pressure calibration device. BACKGROUND

[0002] In the field of industrial automation and process control, as the core detection element, the accuracy and stability of the pressure sensor are directly related to the safety and efficiency of the production process. To ensure that the pressure sensor can accurately measure the pressure change, calibration is particularly important. Traditionally, the calibration of the pressure sensor relies on the pressure controller, which sets and outputs different pressure values for the calibrated pressure sensor, so as to evaluate whether its performance meets the design requirements.

[0003] However, although the pressure controller plays a key role in the calibration process, its high equipment cost has become a bottleneck restricting the widespread development of calibration work. As a precision industrial control device, the pressure controller has high manufacturing and research and development costs, which increases the production cost of enterprises.

[0004] Therefore, it is necessary to provide a new technical solution to overcome the above defects. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a pressure calibration device which can effectively solve the above technical problems.

[0006] In order to achieve the purpose of the utility model, the following technical solutions are adopted:

[0007] A pressure calibration device, characterized in that: comprising a booster station, a pressure output pipe inserted into one end of the booster station, a straight pipe inserted into one end of the pressure output pipe, a main four-way valve arranged between the straight pipe and the pressure output pipe, a first shunt pipe inserted into one end of the main four-way valve, a second shunt pipe inserted into the other end of the main four-way valve, a first secondary pipe arranged at one end of the first shunt pipe, a second secondary pipe arranged at one end of the second shunt pipe, a gas collecting pipe arranged at one end of the straight pipe, a secondary four-way valve arranged between the gas collecting pipe and the straight pipe, and a calibration tool inserted into one end of the gas collecting pipe.

[0008] Among them, one end of the secondary four-way valve is in communication with the first secondary pipe, the other end of the secondary four-way valve is in communication with the second secondary pipe, and the straight pipe, the first secondary pipe and the second secondary pipe are all provided with a main pressure regulating valve.

[0009] Further, the straight pipe, the first secondary pipe and the second secondary pipe are all provided with a main electromagnetic valve.

[0010] Further, one end of the first secondary pipe is provided with a first sub-pipe, and one end of the second secondary pipe is provided with a second sub-pipe.

[0011] Furthermore, sub-solenoid valves are provided on both the first sub-pipeline and the second sub-pipeline.

[0012] Furthermore, sub-pressure regulating valves are provided on both the first sub-pipeline and the second sub-pipeline.

[0013] Furthermore, a pressure relief pipeline is provided at one end of the first pipeline; the pressure relief pipeline is connected to the interior of the first pipeline.

[0014] Furthermore, a pressure relief solenoid valve is provided on the pressure relief pipeline.

[0015] Furthermore, a first pressure sensor is provided at one end of the first pipeline close to the gas collecting pipe; wherein, two first pressure sensors are provided in total.

[0016] Furthermore, a second pressure sensor is provided at one end of the secondary pipeline close to the gas collecting pipe; wherein, two second pressure sensors are provided in total.

[0017] Furthermore, a third pressure sensor is provided at one end of the direct transmission pipeline close to the gas collecting pipe; wherein, two third pressure sensors are provided in total.

[0018] Compared with the existing technology, the utility model has the following beneficial effects: the utility model provides a high-pressure gas source through a booster platform, which is input into the direct pipeline, the first pipeline and the second pipeline respectively, and then the pressure of each pipeline is adjusted by a pressure regulating valve in combination with a high-precision pressure sensor, which can replace the pressure controller and reduce the cost of pressure calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 This is the normal calibration application diagram of the utility model.

[0022] Figure 3 This is the pressure calibration application diagram of the utility model.

[0023] Figure 4 This is a pressure relief application diagram of the utility model.

[0024] Figure: 1, booster station; 2, pressure output pipe; 3, direct transmission pipeline; 4, main four-way valve; 5, gas collecting pipe; 6, secondary four-way valve; 7, calibration tool; 8, main solenoid valve; 9, main pressure regulating valve; 10, pressure relief solenoid valve; 11, pressure relief pipeline; 12, first pressure sensor; 13, second pressure sensor; 14, third pressure sensor; 31, first pipeline; 32, second pipeline; 33, first sub-pipeline; 34, second sub-pipeline; 41, first shunt pipe; 42, second shunt pipe; 81, sub-solenoid valve; 91, sub-pressure regulating valve DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments.

[0026] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "front", "back", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention. When a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a centered component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centered component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a centered component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] like Figures 1 to 4As shown, a pressure calibration device includes a booster platform 1, a pressure output pipe 2 plugged into one end of the booster platform 1, a direct transmission pipeline 3 plugged into one end of the pressure output pipe 2, a main cross-piece 4 provided between the direct transmission pipeline 3 and the pressure output pipe 2, a first shunt pipe 41 plugged into one end of the main cross-piece 4, a second shunt pipe 42 plugged into the other end of the main cross-piece 4, a first pipeline 31 provided at one end of the first shunt pipe 41, a second pipeline 32 provided at one end of the second shunt pipe 42, a gas collecting pipe 5 provided at one end of the direct transmission pipeline 3, a secondary cross-piece 6 provided between the gas collecting pipe 5 and the direct transmission pipeline 3, and a calibration tool 7 plugged into one end of the gas collecting pipe 5; Among them, one end of the secondary four-way valve 6 is connected to the first pipeline 31, and the other end of the secondary four-way valve 6 is connected to the second pipeline 32. A main pressure regulating valve 9 is provided on the direct pipeline 3, the first pipeline 31 and the second pipeline 32; by setting the direct pipeline 3, the first pipeline 31 and the second pipeline 32 to cooperate with each other, and setting the main pressure regulating valve 9 on the direct pipeline 3, the first pipeline 31 and the second pipeline 32, the user can adjust the pressure values ​​output by the direct pipeline 3, the first pipeline 31 and the second pipeline 32 respectively through the main pressure regulating valve 9, so as to adjust the pressure value in the calibration tool 7, which is convenient for user use.

[0028] It should be noted that main solenoid valves 8 are provided on the direct pipeline 3, the first pipeline 31 and the second pipeline 32; in this embodiment, there are three main solenoid valves 8, and the three main solenoid valves 8 are respectively arranged on the direct pipeline 3, the first pipeline 31 and the second pipeline 32. The main solenoid valves 8 are used to control the air supply from the booster platform 1 to the direct pipeline 3, the first pipeline 31 or the second pipeline 32, so as to further adjust the total air pressure in the direct pipeline 3, the first pipeline 31 and the second pipeline 32; in addition, the main solenoid valve 8 can also control the closing or opening of the direct pipeline 3, the first pipeline 31 and the second pipeline 32, so that the user can use fewer pipelines to adjust the pressure value in this embodiment, which is convenient for users to use.

[0029] It should be noted that a first sub-pipeline 33 is provided at one end of the first pipeline 31, and a second sub-pipeline 34 is provided at one end of the second pipeline 32; a sub-solenoid valve 81 is provided on each of the first sub-pipeline 33 and the second sub-pipeline 34; a sub-pressure regulating valve 91 is provided on each of the first sub-pipeline 33 and the second sub-pipeline 34; in this embodiment, there are two sub-solenoid valves 81, and the two sub-solenoid valves 81 are respectively provided on the first sub-pipeline 33 and the second sub-pipeline 34, and the sub-solenoid valves 81 are used to control the amount of gas supplied by the booster platform 1 to the first sub-pipeline 33 and the second sub-pipeline 34, so as to adjust the gas pressure in the first sub-pipeline 33 and the second sub-pipeline 34; the sub-pressure regulating valve 91 Two sub-pressure regulating valves 91 are provided, and the two sub-pressure regulating valves 91 are respectively provided on the first sub-pipeline 33 and the second sub-pipeline 34. The provision of the sub-pressure regulating valves 91 facilitates the user to adjust the air pressure output by the first sub-pipeline 33 or the second sub-pipeline 34. Furthermore, the provision of the first sub-pipeline 33 and the second sub-pipeline 34 can further enhance the total air pressure in the first and second sub-pipelines 31, 32. The user can select a pressure calibration value to operate the two sub-solenoid valves 81 to open or close the first and second sub-pipelines 33, 34, thereby extending the calibration range of the calibration tool 7 and enhancing the scope of application of this embodiment.

[0030] A pressure relief pipeline 11 with a pressure relief solenoid valve 10 is provided at one end of the first pipeline 31; the pressure relief pipeline 11 is connected to the interior of the first pipeline 31. When all the sub-solenoid valves 81 and the main solenoid valve 8 in this embodiment are closed, the pressure relief solenoid valve 10 is used to discharge the pressure in this embodiment and allow the external normal pressure to enter this embodiment; when calibrating the pressure, by opening the pressure relief solenoid valve 10, normal pressure is brought into this embodiment, which can further adjust the air pressure in the gas collecting pipe 5, making it convenient for users to adjust the pressure calibration value of the calibration tool 7, and facilitating user operation.

[0031] A first pressure sensor 12 is provided at one end of the first pipeline 31 close to the gas collecting pipe 5; wherein, there are two first pressure sensors 12 in total; in this embodiment, by providing two first pressure sensors 12, it is convenient for the user to observe the changes in the air pressure value in the first pipeline 31, thereby enhancing the use effect of this embodiment.

[0032] A second pressure sensor 13 is provided at one end of the secondary pipeline 32 close to the gas collecting pipe 5; wherein, there are two second pressure sensors 13 in total; in this embodiment, by providing two second pressure sensors 13, it is convenient for the user to observe the changes in the air pressure value in the secondary pipeline 32, thereby enhancing the use effect of this embodiment.

[0033] A third pressure sensor 14 is provided at one end of the direct transmission pipeline 3 close to the gas collecting pipe 5; wherein, there are two third pressure sensors 14 in total; in this embodiment, by providing two third pressure sensors 14, it is convenient for the user to observe the changes in the air pressure value in the direct transmission pipeline 3, thereby enhancing the use effect of this embodiment.

[0034] Working principle: During normal calibration, the booster station 1 is powered on, and the three main solenoid valves 8 are opened according to the calibration values, so that the booster station 1 inputs air pressure to the direct transmission pipeline 3, the first pipeline 31 and the second pipeline 32 respectively. The sizes of the three main pressure regulating valves 9 are adjusted so that a certain amount of air pressure enters the gas collecting pipe 5 through the direct transmission pipeline 3, the first pipeline 31 and the second pipeline 32, thereby allowing the calibration tool 7 to calibrate the product;

[0035] During pressure calibration, the two sub-solenoid valves 81 can be controlled to open the first sub-pipeline 33 and the second sub-pipeline 34, so that air pressure enters the first sub-pipeline 33 and the second sub-pipeline 34, thereby increasing the pressure value in the first sub-pipeline 31 and the second sub-pipeline 32 and increasing the calibration range of the calibration tool 7;

[0036] When the pressure is released, the pressure relief solenoid valve 10 is opened, so that the external normal pressure enters the embodiment through the pressure relief pipe 11, reducing the pressure of the gas entering the gas collecting pipe 5;

[0037] After the calibration is completed, all sub-solenoid valves 81 and the main solenoid valve 8 are closed, and the pressure relief solenoid valve 10 is opened to discharge the pressure in this embodiment.

[0038] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology. It will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field.

[0039] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. A pressure calibration device, characterized in that: The invention comprises a boosting platform (1), a pressure output pipe (2) plugged into one end of the boosting platform (1), a direct transmission pipeline (3) plugged into one end of the pressure output pipe (2), a main four-way valve (4) provided between the direct transmission pipeline (3) and the pressure output pipe (2), a first shunt pipe (41) plugged into one end of the main four-way valve (4), a second shunt pipe (42) plugged into the other end of the main four-way valve (4), a first pipeline (31) provided at one end of the first shunt pipe (41), a second pipeline (32) provided at one end of the second shunt pipe (42), a gas collecting pipe (5) provided at one end of the direct transmission pipeline (3), a secondary four-way valve (6) provided between the gas collecting pipe (5) and the direct transmission pipeline (3), and a calibration tool (7) plugged into one end of the gas collecting pipe (5); One end of the secondary four-way valve (6) is connected to the primary pipeline (31) by plugging, and the other end of the secondary four-way valve (6) is connected to the secondary pipeline (32) by plugging. The direct transmission pipeline (3), the primary pipeline (31) and the secondary pipeline (32) are all provided with a main pressure regulating valve (9).

2. A pressure calibration device according to claim 1, characterized in that: Main solenoid valves (8) are provided on the direct delivery pipeline (3), the first pipeline (31) and the second pipeline (32).

3. A pressure calibration device according to claim 2, characterized in that: One end of the first pipeline (31) is provided with a first sub-pipeline (33), and one end of the second pipeline (32) is provided with a second sub-pipeline (34).

4. A pressure calibration device according to claim 3, characterized in that: Sub-solenoid valves (81) are provided on both the first sub-pipeline (33) and the second sub-pipeline (34).

5. A pressure calibration device according to claim 4, characterized in that: Sub-pressure regulating valves (91) are provided on both the first sub-pipeline (33) and the second sub-pipeline (34).

6. A pressure calibration device according to claim 5, characterized in that: A pressure relief pipeline (11) is provided at one end of the first pipeline (31); the pressure relief pipeline (11) is communicated with the interior of the first pipeline (31).

7. A pressure calibration device according to claim 6, characterized in that: The pressure relief pipeline (11) is provided with a pressure relief solenoid valve (10).

8. The pressure calibration device according to claim 1, characterized in that: A first pressure sensor (12) is provided at one end of the first pipeline (31) close to the gas collecting pipe (5); wherein two first pressure sensors (12) are provided in total.

9. The pressure calibration device according to claim 1, characterized in that: A second pressure sensor (13) is provided at one end of the secondary pipeline (32) close to the gas collecting pipe (5); wherein two second pressure sensors (13) are provided in total.

10. The pressure calibration device according to claim 1, characterized in that: A third pressure sensor (14) is provided at one end of the direct transmission pipeline (3) close to the gas collecting pipe (5); wherein, two third pressure sensors (14) are provided in total.

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