Safety valve verification device

Abstract

The utility model relates to the technical field of safety valves, and provides a safety valve verification device which comprises a main pipeline, an air inlet branch and a verification host, the main pipeline comprises a main pressure detection part, a safety valve and a sound wave detection part, and the main pressure detection part is arranged between the safety valve and an inlet of the main pipeline. The sound wave detection part is arranged between the safety valve and the outlet of the main pipeline; a gas release component is arranged at an inlet of the gas inlet branch, an outlet of the gas inlet branch is arranged between an inlet of the main pipeline and the main pressure detection component, and the gas release component is used for providing detection gas for the gas inlet branch; the verification host is electrically connected with the main pressure detection part, and the verification host is used for obtaining the fluid pressure of the main pipeline through the main pressure detection part; the verification host is electrically connected with the sound wave detection part and is used for obtaining the take-off sound wave of the safety valve through the sound wave detection part. According to the safety valve verification device provided by the utility model, a complicated disassembly and assembly process can be omitted, and verification efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety valves, in particular to a safety valve calibration device. Background Art

[0002] The trip pressure is an important technical parameter of the safety valve. In the prior art, the trip pressure is generally verified by first removing the safety valve on the process pipeline, then introducing air into the safety valve in a laboratory or a calibration workshop, and gradually increasing the pressure of the introduced air. When the safety valve is observed to complete the tripping action, the pressure is the trip pressure of the safety valve. However, this detection method is complicated to disassemble and assemble, inefficient, and inaccurate, and is also prone to cause safety accidents. Utility Model Content

[0003] The utility model provides a safety valve calibration device to solve the defects of the detection method in the prior art. By connecting the air intake branch and the gas release component on the process pipeline, and arranging the main pressure detection component and the sound wave detection component before and after the safety valve respectively, the safety valve can be calibrated at any time without affecting the normal operation of the process pipeline, eliminating the complicated disassembly and assembly process, and can greatly improve the calibration efficiency, accuracy and safety of the safety valve.

[0004] The safety valve calibration device provided by the utility model comprises:

[0005] A main line, comprising a main pressure detection component, a safety valve and a sound wave detection component, wherein the main pressure detection component is arranged between the safety valve and the inlet of the main line, and the sound wave detection component is arranged between the safety valve and the outlet of the main line; an intake branch line, wherein a gas release component is arranged at the inlet of the intake branch line, and the outlet of the intake branch line is arranged between the inlet of the main line and the main pressure detection component, and the gas release component is used to provide detection gas for the intake branch line; a verification host, electrically connected to the main pressure detection component, and the verification host is used to obtain the fluid pressure of the main line through the main pressure detection component; the verification host is electrically connected to the sound wave detection component, and the verification host is used to obtain the tripping sound wave of the safety valve through the sound wave detection component.

[0006] According to the safety valve calibration device provided by the utility model, the air intake branch is provided with a flow regulating valve, the flow regulating valve is located between the gas release component and the outlet of the air intake branch, and the flow regulating valve is used to control the flow of the detection gas.

[0007] According to the safety valve calibration device provided by the utility model, the air intake branch is also provided with a check valve, which is located between the flow regulating valve and the outlet of the air intake branch, and is used to limit the fluid in the main line from entering the air intake branch.

[0008] According to the safety valve calibration device provided by the utility model, the intake branch is also provided with an auxiliary pressure detection component, the auxiliary pressure detection component is located between the flow regulating valve and the outlet of the intake branch, and the auxiliary pressure detection component is used to detect the pressure of the detection gas in the intake branch.

[0009] According to the safety valve calibration device provided by the utility model, the main pipeline also includes a temperature detection component, the temperature detection component is arranged between the main pressure detection component and the safety valve, the temperature detection component is electrically connected to the calibration host, and the temperature detection component is used to detect the temperature of the fluid in the main pipeline.

[0010] According to the safety valve verification device provided by the utility model, the verification host comprises:

[0011] a control module, electrically connected to the main pressure detection component, the sound wave detection component, the gas release component, the flow regulating valve, the auxiliary pressure detection component, and the temperature detection component, respectively, and used to control the main pressure detection component, the sound wave detection component, the gas release component, the flow regulating valve, the auxiliary pressure detection component, and the temperature detection component to perform corresponding operations respectively;

[0012] A data recording module is electrically connected to the control module, and is used to record the fluid pressure in the main pipeline, the tripping sound wave of the safety valve, and the fluid temperature in the main pipeline.

[0013] According to the safety valve calibration device provided by the utility model, the calibration host further comprises a wireless module, the wireless module is electrically connected to the control module and the data recording module respectively, and the wireless module is used for wireless connection with a remote control terminal.

[0014] According to the safety valve calibration device provided by the utility model, the gas release component includes a nitrogen bottle, the nitrogen bottle is arranged at the inlet of the air intake branch, and the detection gas is nitrogen.

[0015] The safety valve calibration device provided by the utility model also includes a quick connection device, which is arranged between the nitrogen cylinder and the inlet of the air intake branch, and is used for quick disassembly and assembly of the nitrogen cylinder and the air intake branch.

[0016] According to the safety valve calibration device provided by the utility model, the gas release component also includes a pressure relief valve and a ball valve, the pressure relief valve is arranged between the nitrogen bottle and the inlet of the air intake branch, and the ball valve is arranged between the pressure relief valve and the nitrogen bottle.

[0017] The safety valve calibration device provided by the utility model respectively arranges a pressure detection component and an acoustic wave detection component before and after the safety valve of the main line, and introduces detection gas into the main line through a gas release component and an air intake branch line to pressurize the branch line gas. In this way, as the detection gas increases, the fluid pressure in the main line will gradually increase. When the fluid pressure increases to the tripping pressure of the safety valve, the calibration host can identify the tripping sound wave of the safety valve through the acoustic wave detection component, that is, determine the tripping time of the safety valve. The calibration host obtains the fluid pressure in the main line at this time through the main pressure detection component, and can obtain the tripping pressure of the safety valve. The safety valve calibration device provided by the utility model can be installed for a long time on a process pipeline that needs to frequently calibrate the safety valve, such as a process pipeline that is calibrated once every six months or a year. The safety valve calibration device provided by the utility model does not need to be repeatedly disassembled and assembled, and can be tested whenever used, so that the calibration of the safety valve can be completed conveniently, quickly and accurately within the specified time.

[0018] Compared with the prior art, the safety valve calibration device provided in the embodiment of the utility model connects the air intake branch and the gas release component on the process pipeline, and respectively sets a main pressure detection component and an acoustic wave detection component before and after the safety valve. In this way, the safety valve can be calibrated at any time without affecting the normal operation of the process pipeline, eliminating the complicated disassembly and assembly process, which can greatly improve the calibration efficiency of the safety valve and improve the safety during the calibration process. In addition, the acoustic wave recognition method is more accurate than the inspector's visual observation and recognition method in the prior art, which can greatly improve the calibration accuracy of the safety valve start-up pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is an application schematic diagram of the safety valve calibration device provided by the embodiment of the utility model.

[0021] Figure 2 It is a schematic diagram of a remote control terminal provided by an embodiment of the utility model.

[0022] Reference numerals:

[0023] 100: main line; 110: main pressure detection component; 120: safety valve; 130: acoustic wave detection component; 140: temperature detection component; 200: air intake branch; 210: gas release component; 211: nitrogen cylinder; 212: pressure relief valve; 213: ball valve; 220: flow regulating valve; 230: check valve; 240: auxiliary pressure detection component; 250: quick connection device. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0026] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0028] Figure 1 It is an application schematic diagram of the safety valve calibration device provided by the embodiment of the utility model.

[0029] See also Figure 1 The utility model provides a safety valve calibration device, which includes a main line 100, a gas release component 210, an intake branch line 200 and a calibration host, wherein the main line 100 includes a main pressure detection component 110, a safety valve 120 and a sound wave detection component 130, the main pressure detection component 110 is arranged between the safety valve 120 and the inlet of the main line 100, and the sound wave detection component 130 is arranged between the safety valve 120 and the outlet of the main line 100, the main pressure detection component 110 is used to collect the size of the total pressure before the safety valve 120 in real time during the calibration process of the safety valve 120, and the main pressure detection component 110 can use a pressure sensor; the sound wave detection component 130 is used to collect the sudden change sound wave of the safety valve 120 when it takes off, and the sound wave detection component 130 can use a sound wave sensor.

[0030] The inlet of the air intake branch 200 is connected to the gas release component 210 , and the outlet of the main air intake path is arranged between the inlet of the main path 100 and the main pressure detection component 110 . The gas release component 210 is used to provide detection gas for the air intake branch 200 . In an embodiment of the utility model, when it is necessary to calibrate the safety valve 120, the process medium can flow normally in the main line 100. Specifically, the gas release component 210 provides detection gas, and the detection gas enters the main line 100 through the air intake branch 200 and mixes with the process medium. The main pressure detection component 110 monitors the pressure of the mixed fluid in the main line 100 in real time. As the detection gas increases, the fluid pressure in the main line 100 increases. When the fluid pressure reaches the tripping pressure of the safety valve 120, the safety valve 120 will immediately trip and release the pressure. When the safety valve 120 trips, it will generate a sudden change in the sound wave that can be obtained by the sound wave detection component 130. Specifically, when the sound wave information shows a large sudden change, it means that the safety valve 120 has completed the tripping (opening), and the sound wave peak at this time is the tripping sound wave (sudden change sound wave).

[0031] The verification host is electrically connected to the main pressure detection component 110. The verification host can obtain the fluid pressure in the main pipeline 100 in real time through the main pressure detection component 110. The verification host is also electrically connected to the sound wave detection component 130. When the sound wave detection component 130 detects the tripping sound wave of the safety valve 120, the sound wave information can be fed back to the verification host. The verification host can identify the tripping time of the safety valve 120 and determine the fluid pressure in the main pipeline 100 at this time as the tripping pressure of the safety valve 120.

[0032] See also Figure 1 It can be understood that the safety valve verification device provided by the present invention is configured with a pressure detection component and an acoustic wave detection component 130 respectively before and after the safety valve 120 of the main pipeline 100, and a detection gas is introduced into the main pipeline 100 through the gas release component 210 and the air intake branch 200 to pressurize the branch gas. In this way, as the detection gas increases, the fluid pressure in the main pipeline 100 will gradually increase. When the fluid pressure increases to the tripping pressure of the safety valve 120, the verification host can identify the tripping acoustic wave of the safety valve 120 through the acoustic wave detection component 130. , that is, to determine the tripping time of the safety valve 120, the verification host obtains the fluid pressure in the main pipeline 100 at this time through the main pressure detection component 110, and the tripping pressure of the safety valve 120 can be obtained. The safety valve verification device provided by the utility model can be installed for a long time on the process pipeline that needs to frequently verify the safety valve 120, such as the process pipeline that is verified once every six months or one year. The safety valve verification device provided by the utility model does not need to be repeatedly disassembled and assembled, and can be tested whenever used, and can complete the verification of the safety valve 120 conveniently, quickly and accurately within the specified time.

[0033] Compared with the prior art, the safety valve calibration device provided in the embodiment of the utility model connects the air intake branch 200 and the gas release component 210 on the process pipeline, and respectively sets the main pressure detection component 110 and the sound wave detection component 130 before and after the safety valve 120. In this way, the safety valve 120 can be calibrated at any time without affecting the normal operation of the process pipeline, eliminating the complicated disassembly and assembly process, which can greatly improve the calibration efficiency of the safety valve 120 and the safety during the calibration process. In addition, the sound wave recognition method is more accurate than the inspector's visual observation and recognition method in the prior art, which can greatly improve the calibration accuracy of the safety valve 120 trip pressure.

[0034] Continue reading Figure 1In an optional embodiment of the utility model, a flow regulating valve 220 is provided on the intake branch 200, and the flow regulating valve 220 is located between the gas release component 210 and the inlet of the intake branch 200. The flow regulating valve 220 is used to control the flow of the detection gas in the intake branch 200, and then to control the total pressure of the mixed fluid in the main pipeline 100. It can be understood that by gradually increasing the flow of the detection gas through the flow regulating valve 220, the total fluid pressure in the main pipeline 100 can be gradually increased. In this way, damage to the main pressure detection component 110 and the safety valve 120 due to a sudden increase in pressure in the pipeline can be avoided. In addition, the flow regulating valve 220 can also serve as the main valve of the intake branch 200 to control the connection or blockage between the intake branch 200 and the main pipeline 100, which can make the inspection of the safety valve 120 more convenient and easy to operate.

[0035] Continue reading Figure 1 In an optional embodiment of the utility model, the air intake branch 200 is further provided with a check valve 230, which is located between the flow regulating valve 220 and the outlet of the air intake branch 200. The check valve 230 is used to limit the fluid in the main pipeline 100 from entering the air intake branch 200. It can be understood that by setting the check valve 230, on the one hand, it can prevent the detection gas or process medium from damaging the various components in the air intake branch 200 due to backflow. On the other hand, it can also prevent problems such as gas leakage in the pipeline caused by the pressure of the detection gas being too low or the accidental detachment of the air intake branch 200. This can greatly improve the safety of the safety valve calibration device.

[0036] Continue reading Figure 1 In an optional embodiment of the utility model, the air intake branch 200 is further provided with an auxiliary pressure detection component 240, which is located between the flow regulating valve 220 and the outlet of the air intake branch 200. The auxiliary pressure detection component 240 is used to detect the pressure of the detection gas entering the main pipeline 100 from the air intake branch 200. It should be noted that during the detection process, the gas pressure detected by the auxiliary pressure detection component 240 needs to be greater than the fluid pressure detected by the main pressure detection component 110, so as to ensure that the detection gas smoothly enters the main pipeline 100, rather than the process medium in the main pipeline 100 flowing into the air intake branch 200. It can be understood that by providing the auxiliary pressure detection component 240, a reference can be given during the adjustment process of the flow regulating valve 220, which can make the flow adjustment of the detection gas more accurate and efficient, and can reduce the difficulty of using the safety valve calibration device.

[0037] Continue reading Figure 1In an optional embodiment of the utility model, the main pipeline 100 further includes a temperature detection component 140, which is disposed between the main pressure detection component 110 and the safety valve 120. The temperature detection component 140 is electrically connected to the calibration host. The temperature detection component 140 is used to detect the temperature of the fluid in the main pipeline 100. Since the temperature is directly related to the pressure of the fluid, the temperature of the fluid when the safety valve 120 is tripped can be obtained through the temperature detection component 140, and the trip pressure can be corrected through a formula or algorithm to improve the accuracy of the calibration of the safety valve 120. Furthermore, the temperature detection component 140 detects the temperature of the fluid when the safety valve 120 is tripped and calculates the trip pressure, which can be used as a redundant design of the main pressure detection component 110. The trip pressures obtained by the two can be verified with each other. In this way, the accuracy of the trip pressure calibration of the safety valve calibration device can be greatly improved.

[0038] In an optional embodiment of the utility model, the verification host includes a control module and a data recording module, and the data recording module is electrically connected to the control module, wherein the control module includes a main pressure detection unit, an acoustic wave detection unit, a gas release unit, a flow regulation unit, an auxiliary pressure detection unit, a temperature detection unit and a verification calculation unit, etc. The main pressure detection unit is electrically connected to the main pressure detection component 110, and the main pressure detection unit is used to control the main pressure detection component 110 to perform pressure detection on the main line 100, and can feed back the detected pressure information to the verification calculation unit and the data recording module.

[0039] The sound wave detection unit is electrically connected to the sound wave detection component 130, and the sound wave detection unit is used to control the sound wave detection component 130 to obtain sound waves in the surrounding environment, and can feed back the obtained sound wave information to the verification calculation unit and the data recording module; the gas release unit is electrically connected to the gas release component 210, and the gas release unit is used to control the opening of the ball valve 213 and the pressure relief valve 212 in the gas release component 210, that is, to control the opening or closing of the gas release component 210; the flow regulating unit is electrically connected to the flow regulating valve 220, and the flow regulating unit is used to control the opening of the flow regulating valve 220. The flow regulating unit can be regulated according to preset commands, and can also be controlled by an inspector.

[0040] The auxiliary pressure detection unit is electrically connected to the auxiliary pressure detection component 240. The auxiliary pressure detection unit is used to control the auxiliary pressure detection component 240 to perform pressure detection on the intake branch 200, and can feed back the detected pressure information to the verification calculation unit and the data recording module; the temperature detection unit is electrically connected to the temperature detection component 140. The temperature detection unit is used to control the temperature detection component 140 to obtain the temperature of the fluid in the main circuit 100, and can feed back the detected information to the verification calculation unit and the data recording module.

[0041] The verification calculation unit can identify and determine the tripping pressure of the safety valve 120 based on the acquired pressure information, sound wave information, temperature information, etc. The above two methods of obtaining the tripping pressure can be implemented by the verification calculation unit. Specifically, the corresponding module can be integrated on the PCB board and the corresponding program data can be input into it. For more detailed and specific settings, please refer to the existing technology for adaptive design, which will not be repeated in this article.

[0042] The data recording module is used to record the fluid pressure of the main line 100, the tripping sound wave of the safety valve 120 and the fluid temperature in the main line 100. It can be understood that such a setting can facilitate subsequent manual judgment or correction, and can improve the functionality and humanization of the safety valve verification device.

[0043] Figure 2 It is a schematic diagram of a remote control terminal provided by an embodiment of the utility model.

[0044] See also Figure 1 and Figure 2 In an optional embodiment of the utility model, the verification host further includes a wireless module, the wireless module is electrically connected to the control module and the data recording module respectively, the wireless module is used to wirelessly connect to a remote control terminal, and the remote wireless terminal can be a mobile device such as a computer, a tablet or a mobile phone. Figure 2 The remote controller shown in is illustrated and described as an example.

[0045] The remote control terminal can remotely control the verification host through wireless communication, and then control the safety valve verification device; in an optional embodiment of the utility model, the remote control terminal can also perform the functions that can be achieved by the verification host in the aforementioned embodiment through wireless communication, that is, directly control other controllable components in the safety valve verification device except the verification host. In this case, it is necessary to set the main pressure detection component 110, the acoustic wave detection component 130, the gas release component 210, the flow regulating valve 220, the auxiliary pressure detection component 240 and the temperature detection component 140 as components with remote transmission function, such as remote adjustable valves, pressure sensors and temperature sensors with remote data real-time transmission function, acoustic wave sensors with remote data real-time transmission function, etc.

[0046] Correspondingly, the remote control terminal needs to integrate a remote verification calculation unit, a wireless module, a remote pressure regulation system, a remote pressure monitoring system, a remote temperature monitoring system, a remote safety valve tripping acoustic wave judgment system, a remote data recording module, a digital display screen, a headphone interface, etc.

[0047] Among them, the remote pressure regulation system can synchronously control the opening of the flow control valve 220 by wireless means, and then control the pressure of the detection gas entering the main pipeline 100, so as to reach the tripping pressure of the safety valve 120; the pressure sensor and temperature sensor with remote data real-time transmission function can monitor the pressure and temperature in front of the safety valve 120 by wireless means in real time; the remote safety valve tripping sound wave judgment system can control the sound wave detection component 130 by wireless means to collect and monitor the tripping sudden sound wave of the safety valve 120 in real time. When the sound wave signal shows a large mutation, it means that the safety valve 120 has completed the tripping (opening). At this time, the remote data recording module can record the pressure and temperature when the peak value of the sound wave signal is reached, and record a section of the tripping sound before and after the tripping for subsequent tracing and manual judgment.

[0048] The digital display screen is used to display the pressure, temperature and sound wave intensity in real time. When the safety valve 120 trips, it can stop and flash to display the pressure and temperature at that moment, that is, to display the tripping pressure and temperature of the safety valve 120. In addition, in a noisy environment, when the remote verification calculation unit is unable to make a tripping sound wave judgment on the safety valve 120, manual monitoring can be used through the headphone interface to determine whether the safety valve 120 has tripped, and then the tripping pressure and temperature of the safety valve 120 can be manually recorded through the digital display screen.

[0049] On the basis of the foregoing embodiment, the remote control terminal can also be switched to a fully automatic mode. Specifically, the remote control terminal will automatically adjust the pressure regulating button according to the preset command, thereby remotely driving the flow regulating valve 220 to complete the corresponding operation to realize the automatic pressure increase function. When the valve opening reaches the tripping pressure of the safety valve 120, the safety valve 120 completes the tripping action, and the maximum value of the sound wave appears. The automatic adjustment of the remote control terminal ends, and the pressure, temperature and sound wave audio are automatically recorded. At the same time, the pressure regulating button automatically returns to its position, and the flow regulating valve 220 is closed. The number of repeated verifications can be set according to actual conditions to achieve the accuracy of the verification.

[0050] It is understandable that the safety valve 120 is mostly set in a harsh environment such as high temperature and high pressure. The safety valve verification device provided by the embodiment of the utility model can be used to verify the tripping pressure of the safety valve 120 connected to the pipeline by setting a wireless communication module and a remote control terminal; by remotely and synchronously controlling the opening of the flow regulating valve 220, the pressure of the mixed fluid after the detection gas enters the main pipeline 100 can be adjusted so that it can reach the tripping pressure of the safety valve 120; and then the pressure, temperature and sound wave signals are obtained by wireless collection and transmission, and the tripping pressure of the safety valve 120 is automatically determined by the remote verification calculation unit. In this way, the inspector can remotely verify the safety valve 120, which can maximize the safety of the inspector.

[0051] Continue reading Figure 1 In an optional embodiment of the utility model, the gas release component 210 includes a nitrogen bottle 211, and the nitrogen bottle 211 is arranged at the inlet of the air intake branch 200, that is, the detection gas in this embodiment is nitrogen. It can be understood that nitrogen is an inert gas with high safety and is not easy to react with the fluid medium in the process pipeline, which can ensure the stability of the safety valve calibration device. It should be noted that the storage pressure of the nitrogen bottle 211 should be greater than the difference between the trip pressure of the safety valve 120 and the process medium pressure of the main pipeline 100 itself, so as to ensure that the detection gas stably enters the main pipeline 100. In other optional examples of the utility model, the detection gas can also be other gases such as oxygen, helium or air. Specifically, it can be adaptively set according to actual conditions.

[0052] Continue reading Figure 1 In an optional embodiment of the utility model, the safety valve verification device also includes a quick connection device 250, which is arranged between the nitrogen cylinder 211 and the inlet of the air intake branch 200. The quick connection device 250 can select a quick connection head and other components. The quick connection device 250 is used for quick disassembly and assembly of the nitrogen cylinder 211 and the air intake branch 200 to facilitate the replacement of the nitrogen cylinder 211.

[0053] Continue reading Figure 1 In an optional embodiment of the utility model, the gas release device also includes a pressure relief valve 212 and a ball valve 213. The pressure relief valve 212 is arranged between the nitrogen bottle 211 and the inlet of the air intake branch 200, and the ball valve 213 is arranged between the pressure relief valve 212 and the nitrogen bottle 211. The pressure relief valve 212 is used to protect the safety of the nitrogen bottle 211 and avoid excessive gas pressure in the nitrogen bottle 211. The ball valve 213 is used to control the flow rate of nitrogen. Specifically, it can be adaptively set according to actual conditions.

[0054] It should be noted that the technical solutions in various embodiments of the present utility model can be combined with each other, but the basis for the mutual combination is that it can be implemented by ordinary technicians in the field; when the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist, that is, it does not belong to the protection scope of the present utility model.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A safety valve calibration device, characterized in that: include: A main pipe (100) comprises a main pressure detection component (110), a safety valve (120) and a sound wave detection component (130), wherein the main pressure detection component (110) is arranged between the safety valve (120) and an inlet of the main pipe (100), and the sound wave detection component (130) is arranged between the safety valve (120) and an outlet of the main pipe (100); An air intake branch (200), wherein a gas release component (210) is provided at the inlet of the air intake branch (200), and an outlet of the air intake branch (200) is provided between the inlet of the main pipeline (100) and the main pressure detection component (110), and the gas release component (210) is used to provide detection gas for the air intake branch (200); A verification host is electrically connected to the main pressure detection component (110), and is used to obtain the fluid pressure of the main pipeline (100) through the main pressure detection component (110); the verification host is electrically connected to the sound wave detection component (130), and is used to obtain the tripping sound wave of the safety valve (120) through the sound wave detection component (130).

2. The safety valve inspection device according to claim 1, characterized in that: The air intake branch (200) is provided with a flow regulating valve (220), and the flow regulating valve (220) is located between the gas release component (210) and the outlet of the air intake branch (200), and the flow regulating valve (220) is used to control the flow of the detection gas.

3. The safety valve inspection device according to claim 2, characterized in that: The air intake branch (200) is further provided with a check valve (230), wherein the check valve (230) is located between the flow regulating valve (220) and the outlet of the air intake branch (200), and the check valve (230) is used to limit the fluid in the main pipeline (100) from entering the air intake branch (200).

4. The safety valve inspection device according to claim 2, characterized in that: The air intake branch (200) is also provided with an auxiliary pressure detection component (240), and the auxiliary pressure detection component (240) is located between the flow regulating valve (220) and the outlet of the air intake branch (200), and the auxiliary pressure detection component (240) is used to detect the pressure of the detection gas in the air intake branch (200).

5. The safety valve testing device according to claim 4, characterized in that: The main pipeline (100) further comprises a temperature detection component (140), wherein the temperature detection component (140) is arranged between the main pressure detection component (110) and the safety valve (120), and the temperature detection component (140) is electrically connected to the calibration host, and the temperature detection component (140) is used to detect the temperature of the fluid in the main pipeline (100).

6. The safety valve testing device according to claim 5, characterized in that: The verification host comprises: a control module, electrically connected to the main pressure detection component (110), the sound wave detection component (130), the gas release component (210), the flow control valve (220), the auxiliary pressure detection component (240), and the temperature detection component (140), respectively, and used for controlling the main pressure detection component (110), the sound wave detection component (130), the gas release component (210), the flow control valve (220), the auxiliary pressure detection component (240), and the temperature detection component (140) to respectively perform corresponding operations; A data recording module is electrically connected to the control module, and is used to record the fluid pressure in the main pipeline (100), the tripping sound wave of the safety valve (120), and the fluid temperature in the main pipeline (100).

7. The safety valve testing device according to claim 6, characterized in that: The verification host also includes a wireless module, which is electrically connected to the control module and the data recording module respectively, and is used to wirelessly connect to a remote control terminal.

8. The safety valve testing device according to any one of claims 1 to 7, characterized in that: The gas release component (210) comprises a nitrogen bottle (211), the nitrogen bottle (211) is arranged at the inlet of the air intake branch (200), and the detection gas is nitrogen.

9. The safety valve testing device according to claim 8, characterized in that: The invention also comprises a quick connection device (250), wherein the quick connection device (250) is arranged between the nitrogen cylinder (211) and the inlet of the air intake branch (200), and the quick connection device (250) is used for quick disassembly and assembly of the nitrogen cylinder (211) and the air intake branch (200).

10. The safety valve testing device according to claim 8, characterized in that: The gas release component further comprises a pressure relief valve (212) and a ball valve (213); the pressure relief valve (212) is arranged between the nitrogen bottle (211) and the inlet of the air intake branch (200); and the ball valve (213) is arranged between the pressure relief valve (212) and the nitrogen bottle (211).

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