Air tightness detection equipment for pressure gauge

Abstract

The utility model discloses a pressure gauge air tightness detection device, and particularly relates to the pressure gauge detection field, the pressure gauge air tightness detection device comprises a detector, a sealing detection mechanism is installed outside the detector, the detection accuracy is improved through the arrangement of the sealing detection mechanism, a pressure gauge body is connected with the end bodies of a first connecting pipeline and a second connecting pipeline through connecting flanges, and the detection accuracy is improved. A control system instructs a pressure control module to work and injects gas into the sealed environment; a gas flow sensor monitors the flow in real time and ensures that the flow reaches a preset value; the pressure control module adjusts the injection rate according to the preset pressure and maintains the pressure stable; the gas flow sensor monitors the flow change; the flow is kept stable in a sealed environment, the data acquisition system records flow and pressure values, the control system analyzes data, leakage is indicated if the detected flow exceeds a threshold value, the air tightness of the pressure gauge body is unqualified, otherwise, the pressure gauge body is good, and a pressure change curve and data are observed through the display module.

Description

Technical Field

[0001] The utility model relates to the field of pressure gauge detection, and more specifically, to a pressure gauge air tightness detection device. Background Art

[0002] A pressure gauge is an instrument that uses an elastic element as a sensitive component to measure and indicate pressures above ambient pressure. It is extremely common and can be found in almost all industrial processes and scientific research fields. It can be found in heating networks, oil and gas transmission, water and gas supply systems, vehicle repair and maintenance shops, and other fields. Mechanical pressure gauges are particularly popular in industrial process control and technical measurement due to the high mechanical strength and easy production of their elastic sensitive elements.

[0003] After searching, the existing patent (application number: CN 113758629 A) discloses an airtightness detection device for pressure gauge processing, including a detection box with a cavity provided inside, an adjustable test platform installed above the detection box and adjustable in height, and a detection device assembly installed in conjunction with the adjustable test platform. The detection device assembly includes an immersed pipeline installed below the adjustable test platform, a bent end and a flange end connected to the immersed pipeline and extending to the upper end face of the adjustable test platform. A three-way valve is provided in the center of the immersed pipeline. The three-way valve has a test interface on one side for docking and installing the pressure gauge to be tested, and a covering shaft coaxial with the test interface is provided on the periphery of the test interface, and a calibrated pressure gauge is assembled on the bent end. The airtightness detection device for pressure gauge processing is easy to achieve sealing of the pressure gauge interface position and does not hinder disassembly and replacement. It is recommended for widespread use. In the process of realizing the utility model, the inventor found that the prior art has the following problems:

[0004] The existing pressure gauge air tightness detection equipment has poor sealing performance at the interface, which causes gas leakage from the interface, thereby affecting the accuracy of the test results, reducing the accuracy of the monitoring data, and making it limited in use;

[0005] Therefore, in response to the above problems, a pressure gauge air tightness detection device is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pressure gauge air tightness detection device to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present utility model provides the following technical solutions: a pressure gauge air tightness detection device, comprising a detector, wherein a sealing detection mechanism is installed on the outside of the detector;

[0008] A first connecting pipe is nested and installed on one side of the outside of the detector, a connecting bolt is embedded and installed on one side of the inside of the first connecting pipe, a second connecting pipe is nested and installed on one side of the outside of the detector, a pressure gauge body is nested and installed on the other end of the second connecting pipe, a connecting flange is nested and installed on one side of the pressure gauge body, a gas flow sensor is arranged inside the detector, a data acquisition system is arranged on one side of the gas flow sensor, a control system is arranged on one side of the data acquisition system, a pressure control module is arranged on one side of the control system, and a display module is arranged on one side of the control system.

[0009] Furthermore, a sealing shell is nested and installed on the outside of the connecting flange, a rubber pad is fixedly installed on the inside of the sealing shell, a fixing frame is nested and installed on the outside of the sealing shell, a mounting block is fixedly installed on the outside of the fixing frame, and a monitoring sensor is embedded and installed on the inside of the sealing shell.

[0010] Furthermore, the pressure gauge body is installed between the first connecting pipe and the second connecting pipe.

[0011] Furthermore, the gas flow sensor is used in conjunction with a data acquisition system.

[0012] Furthermore, the display module is used in conjunction with a detector.

[0013] Furthermore, the sealing shell is semicircular, and the two sealing shells are engaged with each other.

[0014] Furthermore, the fixing frames are installed on both sides of the exterior of the sealing shell.

[0015] Furthermore, one side of the monitoring sensor is installed inside the sealed shell.

[0016] The technical effects and advantages of this utility model are:

[0017] 1. Compared with the existing technology, this pressure gauge air tightness detection device improves the detection accuracy by setting a sealing detection mechanism. The pressure gauge body is connected to the end body of the first connecting pipe and the second connecting pipe through the connecting flange, and the detection is performed by the detector. That is, by turning on the power of the detector, the control system instructs the pressure control module to start working and inject a certain amount of gas into the sealed detection environment. During this process, the gas flow sensor will monitor the flow rate of the injected gas in real time to ensure that the injection amount reaches the preset value. At the same time, the pressure control module will also adjust the gas injection rate according to the preset detection pressure value to stabilize the pressure in the detection environment at the required level. After the gas is injected and reaches a stable pressure, the gas The gas flow sensor will continue to monitor the changes in the gas flow in the environment. Since the sealed environment is leak-free, the gas flow should remain unchanged. The data acquisition system will record the readings of the gas flow sensor and the detection environment pressure value provided by the pressure sensor in real time. The control system will analyze the data provided by the data acquisition system. If the gas flow is detected to exceed the preset threshold, it indicates that there is a leak in the detection environment, that is, the air tightness of the pressure gauge body is unqualified. On the contrary, if the gas flow remains stable and the detection environment pressure value also meets the preset standard, it indicates that the air tightness of the pressure gauge body is good. The pressure change curve and data during the detection process are observed through the display module, and data analysis is performed to determine whether there is a leak in the pressure gauge body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the utility model as a whole.

[0019] Figure 2 It is a structural schematic diagram of the overall sealing shell of the utility model.

[0020] Figure 3 For the utility model as a whole Figure 1 Enlarged structural diagram at point A in the middle.

[0021] Figure 4 This is a schematic diagram of the overall monitoring system process structure of the present utility model.

[0022] The accompanying drawings are marked as follows: 1. detector; 2. sealing detection mechanism; 3. first connecting pipe; 4. connecting bolt; 5. second connecting pipe; 6. pressure gauge body; 7. connecting flange; 8. gas flow sensor; 9. data acquisition system; 10. control system; 11. pressure control module; 12. display module; 13. sealing shell; 14. rubber pad; 15. fixing frame; 16. mounting block; 17. monitoring sensor. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] As attached Figure 1-4 A pressure gauge air tightness detection device shown in the figure includes a detector 1, and a sealing detection mechanism 2 is installed on the outside of the detector 1; a first connecting pipe 3 is nested and installed on one side of the outside of the detector 1, and a connecting bolt 4 is embedded and installed on one side of the inside of the first connecting pipe 3, a second connecting pipe 5 is nested and installed on one side of the outside of the detector 1, a pressure gauge body 6 is nested and installed on the other end of the second connecting pipe 5, and a connecting flange 7 is nested and installed on one side of the pressure gauge body 6, a gas flow sensor 8 is provided inside the detector 1, a data acquisition system 9 is provided on one side of the gas flow sensor 8, a control system 10 is provided on one side of the data acquisition system 9, a pressure control module 11 is provided on one side of the control system 10, and a display module 12 is provided on one side of the control system 10.

[0026] Among them: the pressure gauge body 6 is connected to the end body of the first connecting pipe 3 and the second connecting pipe 5 through the connecting flange 7, and the detection is performed by the detector 1, that is, by turning on the power of the detector 1, the control system 10 instructs the pressure control module 11 to start working and inject a certain amount of gas into the sealed detection environment. During this process, the gas flow sensor 8 will monitor the flow of the injected gas in real time to ensure that the injection amount reaches the preset value. At the same time, the pressure control module 11 will also adjust the gas injection rate according to the preset detection pressure value to stabilize the pressure in the detection environment at the required level. After the gas is injected and reaches a stable pressure, the gas flow sensor 8 will continue to monitor the gas in the environment Flow rate changes. Since the sealed environment is leak-free, the gas flow rate should remain unchanged. The data acquisition system 9 will record the reading of the gas flow sensor 8 and the detection environment pressure value provided by the pressure sensor in real time. The control system 10 will analyze the data provided by the data acquisition system 9. If the gas flow rate is detected to exceed the preset threshold, it indicates that there is a leak in the detection environment, that is, the air tightness of the pressure gauge body 6 is unqualified. On the contrary, if the gas flow rate remains stable and the detection environment pressure value also meets the preset standard, it indicates that the air tightness of the pressure gauge body 6 is good. The pressure change curve and data during the detection process are observed through the display module 12, and data analysis is performed to determine whether there is a leakage in the pressure gauge body 6.

[0027] Example 2

[0028] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods, as described below:

[0029] like Figure 2 As shown, as a preferred embodiment; a sealing shell 13 is nested and installed on the outside of the connecting flange 7, a rubber pad 14 is fixedly installed on the inside of the sealing shell 13, a fixed frame 15 is nested and installed on the outside of the sealing shell 13, a mounting block 16 is fixedly installed on the outside of the fixed frame 15, and a monitoring sensor 17 is embedded and installed on the inside of the sealing shell 13. Furthermore, the sealing shell 13 is installed on the outside of the connecting flange 7, so that the rubber pad 14 fits tightly with the outside of the connecting pipe, and the fixing frame 15 installs and fixes the sealing shell 13. The fixing frame 15 is firmly installed on the equipment or pipeline. At the same time, the monitoring sensor 17 will monitor the pressure changes inside the sealing shell 13 in real time to prevent leakage at the interface of the connecting flange 7.

[0030] The working process of this utility model is as follows:

[0031] When this pressure gauge air tightness detection device is in use, the pressure gauge body 6 is connected to the end body of the first connecting pipe 3 and the second connecting pipe 5 through the connecting flange 7, and the sealing shell 13 is installed on the outside of the connecting flange 7, so that the rubber pad 14 is tightly fitted with the outside of the connecting pipe. At the same time, the fixing frame 15 installs and fixes the sealing shell 13, and the fixing frame 15 is firmly installed on the equipment or pipeline. At the same time, the monitoring sensor 17 will monitor the pressure changes inside the sealing shell 13 in real time to prevent leakage at the interface of the connecting flange 7. The detector 1 will perform detection, that is, by turning on the power of the detector 1, the control system 10 instructs the pressure control module 11 to start working and inject a certain amount of gas into the sealed detection environment. During this process, the gas flow sensor 8 will monitor the flow rate of the injected gas in real time to ensure that the injection amount reaches the preset value. At the same time, the pressure control module 11 will also adjust the gas flow according to the preset detection pressure value. The gas injection rate is used to stabilize the pressure in the detection environment at the required level. After the gas is injected and reaches a stable pressure, the gas flow sensor 8 will continue to monitor the changes in gas flow in the environment. Since the sealed environment is leak-free, the gas flow should remain unchanged. The data acquisition system 9 will record the readings of the gas flow sensor 8 and the detection environment pressure value provided by the pressure sensor in real time. The control system 10 will analyze the data provided by the data acquisition system 9. If the gas flow is detected to exceed the preset threshold, it indicates that there is a leak in the detection environment, that is, the air tightness of the pressure gauge body 6 is unqualified. On the contrary, if the gas flow remains stable and the detection environment pressure value also meets the preset standard, it indicates that the air tightness of the pressure gauge body 6 is good. The pressure change curve and data during the detection process are observed through the display module 12, and data analysis is performed to determine whether there is a leakage in the pressure gauge body 6. This is the working process and working principle of the device.

[0032] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0033] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0034] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pressure gauge air tightness detection device, comprising a detector (1), characterized in that: A sealing detection mechanism (2) is installed on the outside of the detector (1); A first connecting pipe (3) is nested and installed on one side of the outside of the detector (1), a connecting bolt (4) is embedded and installed on one side of the inside of the first connecting pipe (3), a second connecting pipe (5) is nested and installed on one side of the outside of the detector (1), a pressure gauge body (6) is nested and installed on the other end of the second connecting pipe (5), a connecting flange (7) is nested and installed on one side of the pressure gauge body (6), a gas flow sensor (8) is provided inside the detector (1), a data acquisition system (9) is provided on one side of the gas flow sensor (8), a control system (10) is provided on one side of the data acquisition system (9), a pressure control module (11) is provided on one side of the control system (10), and a display module (12) is provided on one side of the control system (10).

2. The pressure gauge air tightness detection device according to claim 1, characterized in that: A sealing shell (13) is nested and installed on the outside of the connecting flange (7), a rubber pad (14) is fixedly installed on the inside of the sealing shell (13), a fixing frame (15) is nested and installed on the outside of the sealing shell (13), a mounting block (16) is fixedly installed on the outside of the fixing frame (15), and a monitoring sensor (17) is embedded and installed on the inside of the sealing shell (13).

3. The pressure gauge air tightness detection device according to claim 1, characterized in that: The pressure gauge body (6) is installed between the first connecting pipe (3) and the second connecting pipe (5).

4. The pressure gauge air tightness detection device according to claim 1, characterized in that: The gas flow sensor (8) is used in conjunction with a data acquisition system (9).

5. The pressure gauge air tightness detection device according to claim 1, characterized in that: The display module (12) is used in conjunction with the detector (1).

6. The pressure gauge air tightness testing device according to claim 2, characterized in that: The sealing shells (13) are semicircular, and the two sealing shells (13) are meshed with each other.

7. The pressure gauge air tightness testing device according to claim 2, characterized in that: The fixing frame (15) is installed on both sides of the exterior of the sealing shell (13).

8. The pressure gauge air tightness testing device according to claim 2, characterized in that: One side of the monitoring sensor (17) is installed inside the sealed shell (13).

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