Detection device for valve leakage detection
By using a separate design for the main unit and sensor, and the use of an adjustment bracket, the problems of difficult installation and high cost of valve leakage detection are solved. This enables accurate detection and timely alarm in complex process pipelines, and is suitable for high temperature and high pressure environments.
Patent Information
- Application Number
- CN202520216577.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-11
AI Technical Summary
Existing technologies are insufficient for accurately detecting valve leaks in complex process pipelines in industrial settings, especially under high temperature and high pressure conditions. Furthermore, conventional detection devices are difficult to install, costly, and unable to detect even minor leaks in a timely manner.
Adopting a separate design for the main unit and sensor, the main unit is installed away from the valve via plug-in connectors and adjustment brackets, while the sensor is installed at a leak-prone point via the adjustment brackets, enabling multi-angle adjustment. Combined with wireless communication and power transmission, it is suitable for complex process pipelines.
It enables accurate detection of valve leaks, reduces installation costs, increases detection frequency and timeliness, reduces safety risks, and supports use in explosion-proof areas.
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Figure CN223664183U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to safety detection technical field, especially a kind of detection device for valve leakage detection. BACKGROUND
[0002] There are a large number of process pipelines in industrial field needing regulating valve to carry out pipeline flow control, and leakage accident mainly occurs at regulating valve, especially the regulating valve sealed by packing, leakage is inevitable trend in life cycle. Process pipeline has diversification of medium, such as steam, combustible gas, hydrogen, ethylene oxide, hydrogen sulfide, carbon monoxide etc., pipeline can be high temperature, high pressure working condition, power supply is impossible on site or power supply reformation is difficult, it is difficult to install conventional leakage detection equipment, and at present, it relies on artificial inspection (once or several times a day), there are more difficulties and deficiencies:
[0003] (1) on-site pipeline is complex, personnel inspection is difficult, and efficiency is low;
[0004] (2) when artificial inspection, whether leakage trace is observed at the bottom of valve rod, observation is difficult;
[0005] (3) pipeline has diversification of medium, identification is difficult at initial stage of leakage;
[0006] (4) inspection frequency is limited every day, leakage cannot be found in time and measures cannot be taken;
[0007] (5) leakage trend cannot be analyzed by data.
[0008] Even if conventional leakage detection equipment can be installed on site, leakage detection equipment is based on that medium released into air in pipeline after leakage of regulating valve will cause change of environmental gas and temperature, leakage detection is realized by detecting medium gas composition released in environment or change of environmental temperature, and such detection method also has the following deficiencies:
[0009] On the one hand, detection device is installed too far away, and leakage at initial stage cannot be detected in time, so detection device needs to be installed at position where medium leakage is easy to occur, which needs remote wired power supply and communication of detection device, involves construction and wiring, especially in explosion-proof area, production needs to be stopped, and cost is extremely high.
[0010] On the other hand, process pipeline structure is complex and various, detection device needs to be installed in various different occasions, existing detection device has single installation mode, installation position is greatly limited, and is limited by structure and size of detection device, cannot be installed beside regulating valve, especially cannot be accurately detected for leakage position of valve rod.
[0011] Therefore, it is necessary to study a kind of detection device for valve leakage detection to solve the above problems or alleviate the influence caused by the above problems. Utility model content
[0012] The utility model provides a detection device for valve leakage detection passes through host computer and sensor split type distribution design, and passes through plug connector and adjusting support, in order to realize dismounting, to effectively solve above -mentioned problem or alleviate the influence that above -mentioned problem brings.
[0013] The detection device for valve leakage detection can include a host computer and a sensor. The host computer is used to be installed at a position away from a valve. The sensor is installed at a position close to the valve through an adjusting support. The adjusting support can adjust the installation angle of the sensor so that the sensor corresponds to the easy leakage point of the valve.
[0014] The host computer is connected with a first connector terminal, the sensor is connected with a second connector terminal, the first connector terminal and the second connector terminal are plug-connected to form a plug connector, and the plug connector is used for data transmission and power transmission between the host computer and the sensor.
[0015] In one embodiment, the adjusting support includes a first mounting plate for mounting the sensor, and the first mounting plate is provided with a first adjusting sliding groove.
[0016] One side of the sensor is positioned and connected to the first mounting plate through a first connecting piece, and the other side of the sensor is threaded through the first adjusting sliding groove through a second connecting piece. The second connecting piece can be adjusted in tightness to be slidably positioned at different positions of the first adjusting sliding groove, so that the sensor can be adjusted in installation angle in the plane of the first mounting plate.
[0017] In one embodiment, the adjusting support further includes a second mounting plate, the first mounting plate is perpendicularly mounted on the second mounting plate, and the second mounting plate is provided with a second adjusting sliding groove.
[0018] One side of the first mounting plate is positioned and connected to the second mounting plate through a third connecting piece, and the other side of the first mounting plate is threaded through the second adjusting sliding groove through a fourth connecting piece. The fourth connecting piece can be adjusted in tightness to be slidably positioned at different positions of the second adjusting sliding groove, so that the first mounting plate can be adjusted in installation angle in the plane of the second mounting plate.
[0019] In one embodiment, the first adjusting sliding groove and the second adjusting sliding groove are both arc-shaped grooves.
[0020] In one embodiment, the first mounting plate is fixedly connected with a first connecting plate for connecting with the second mounting plate, and the first connecting plate is provided with two connecting holes corresponding to the third connecting piece and the fourth connecting piece.
[0021] The second mounting plate is fixedly connected with a second connecting plate, and the second connecting plate is provided with a mounting hole for being mounted close to the valve position.
[0022] In one embodiment, the sensor is provided with a mounting seat for connecting with the first mounting plate, and the mounting seat is provided with two mutually parallel fine adjustment long holes, and the mounting seat is positioned and connected at different positions of the two fine adjustment long holes through the first connecting piece and the second connecting piece, so as to adjust the mounting position of the sensor.
[0023] In one embodiment, the host is provided with a first interface, and the first interface is connected with the first connector terminal through a cable; the sensor is provided with a second interface, and the second interface is connected with the second connector terminal through a cable.
[0024] In one embodiment, the host comprises a first shell, a circuit board and a battery, and the circuit board and the battery are arranged in the first shell.
[0025] In one embodiment, an antenna is mounted on the top of the first shell, and the antenna is used for wireless communication with a server.
[0026] In one embodiment, the sensor comprises a second shell, a communication board, a data processing board and a sensor body, and the communication board, the data processing board and the sensor body are sequentially arranged in the second shell.
[0027] Compared with the prior art, the detection device for valve leakage detection has at least the following beneficial effects:
[0028] The detection device for valve leakage detection is designed in a host and sensor split type distribution, and a plug-in connector is formed by plug-in connection of the first connector terminal and the second connector terminal, so that data transmission and power supply can be realized, and the detection device is convenient to disassemble and assemble; the sensor can be installed at a plurality of angles through the adjusting support, so that the sensor can be installed at a suitable position. In this way, the detection device can position and install the sensor part close to a position where medium leakage is prone to occur, so as to realize accurate detection, and the host can be arranged at a position convenient for communication and installation, so as to realize accurate communication. BRIEF DESCRIPTION OF DRAWINGS
[0029] In the following, the utility model will be described in more detail based on the embodiments and with reference to the drawings.
[0030] Figure 1 is a structural schematic view of the detection device of an embodiment of the utility model;
[0031] Figure 2 is a sectional view of the detection device of an embodiment of the utility model;
[0032] Figure 3 is a structural schematic view of the first perspective of the adjusting support of an embodiment of the utility model;
[0033] Figure 4 is a structural schematic view of the second perspective of the adjusting support of an embodiment of the utility model;
[0034] Figure 5 is a structural schematic view of the third perspective of the adjusting support of an embodiment of the utility model;
[0035] Figure 6 is an exploded schematic view of the detection device of an embodiment of the utility model.
[0036] In the drawings, the same parts use the same reference numerals. The drawings are not drawn according to the actual scale.
[0037] Reference numerals:
[0038] 1 - host computer, 2 - sensor, 3 - adjusting support, 4 - first joint terminal, 5 - second joint terminal, 6 - plug-in joint, 7 - first mounting plate, 8 - first adjusting sliding slot, 9 - first connecting piece, 10 - second connecting piece, 11 - second mounting plate, 12 second adjusting sliding slot, 13 - third connecting piece, 14 - fourth connecting piece, 15 - first connecting plate, 16 - second connecting plate, 17 - mounting hole, 18 - mounting seat, 19 - fine adjustment long hole, 20 - first interface, 21 - second interface, 22 - first shell, 23 - circuit board, 24 - battery, 25 - antenna, 26 - second shell, 27 - communication board, 28 - data processing board, 29 - sensor main body, 30 - cable, 31 - upper cover, 32 - lower shell, 33 - screw, 34 - control panel, 35 - magnet, 36 - cavity cover, 37 - cavity, 38 - sealing gasket, 39 - filter paper, 40 - air permeable membrane. DETAILED DESCRIPTION
[0039] The utility model will be further described below in combination with the drawings.
[0040] For example, Figure 1 and Figure 2As shown, the detection device for valve leakage detection of the utility model can include host computer 1 and sensor 2, host computer 1 is used to install in the position away from the valve, sensor 2 is installed in the position close to the valve through adjusting support 3, adjusting support 3 can adjust the installation angle of sensor 2, so that sensor 2 corresponds the easy leakage point of valve;
[0041] Wherein, the host computer 1 is connected with the first joint terminal 4, the sensor 2 is connected with the second joint terminal 5, the first joint terminal 4 and the second joint terminal 5 are plug-in connected to form the plug-in joint 6, and the plug-in joint 6 is used for data transmission and power transmission between the host computer 1 and the sensor 2.
[0042] Specifically, the host computer 1 can be usually installed in a place far away from the valve, such as a far away stand. The sensor 2 can be installed in a place close to the valve (a position where the process pipeline is prone to medium leakage) through the adjusting support 3. The host computer 1 and the sensor 2 are plug-in connected through the first joint terminal 4 and the second joint terminal 5 to form the plug-in joint 6, so as to realize data transmission and power transmission between the host computer 1 and the sensor 2. The valve can be various types of valves that can be provided on the process pipeline, such as regulating valves, proportional valves, etc.
[0043] In this way, the first joint terminal 4 and the second joint terminal 5 are plug-in connected to form the plug-in joint 6 during normal use, data transmission is realized, and the host computer 1 supplies power to the sensor 2; when the host computer 1 needs to be charged, the first joint terminal 4 and the second joint terminal 5 are disconnected, and the first joint terminal 4 is connected with the joint terminal of an external power supply to form the plug-in joint 6, so as to realize charging of the host computer 1, that is, the first joint terminal 4 is compatible with a charging interface.
[0044] Overall, the detection device of the utility model is designed in a split type distribution mode through the host computer 1 and the sensor 2, and is plug-in connected through the first joint terminal 4 and the second joint terminal 5 to form the plug-in joint 6, so as to realize data transmission and power supply, and facilitate disassembly and assembly; the sensor 2 can be installed at a suitable position through multi-angle adjustment of the adjusting support 3. In this way, the detection device can position and install the sensor 2 close to a position (leakage point) where medium leakage is prone to occur, so as to facilitate accurate detection, and the host computer 1 is arranged at a position facilitating communication and installation, so as to realize accurate communication.
[0045] In one example, as shown in Figures 3 to 5 The adjusting support 3 includes a first mounting plate 7 for mounting the sensor 2, and the first mounting plate 7 is provided with a first adjusting sliding groove 8;
[0046] One side of the sensor 2 is positioned and connected to the first mounting plate 7 through the first connecting member 9, and the other side of the sensor 2 is threaded through the first adjusting sliding slot 8 through the second connecting member 10, and the sensor 2 can be slidably positioned at different positions of the first adjusting sliding slot 8 through the tightness adjustment of the second connecting member 10, so that the sensor 2 can be installed and adjusted in angle in the plane of the first mounting plate 7.
[0047] Specifically, the first mounting plate 7 is provided with spaced connecting holes and the first adjusting sliding slot 8, and the sensor 2 is provided with two connecting holes, which correspond to the connecting holes and the first adjusting sliding slot 8 of the first mounting plate 7 respectively. In this way, one of the connecting holes of the sensor 2 can be positioned and connected to the connecting hole of the first mounting plate 7 through the first connecting member 9, and the other connecting hole of the sensor 2 can be positioned and connected to the first adjusting sliding slot 8 of the first mounting plate 7 through the second connecting member 10, so as to realize the fixed installation of the sensor 2 and the first mounting plate 7. At the same time, the connecting holes of the sensor 2 can be slidably adjusted and positioned at different positions of the first adjusting sliding slot 8 through the tightness adjustment of the second connecting member 10 during installation, so as to realize the installation and adjustment in angle of the sensor 2 in the plane of the first mounting plate 7.
[0048] Further, the first connecting member 9 and the second connecting member 10 can be connected by a bolt and nut assembly.
[0049] In one example, as shown in Figures 3 to 5 The adjusting bracket 3 further includes a second mounting plate 11, and the first mounting plate 7 is vertically installed on the second mounting plate 11, and the second mounting plate 11 is provided with a second adjusting sliding slot 12.
[0050] One side of the first mounting plate 7 is positioned and connected to the second mounting plate 11 through the third connecting member 13, and the other side of the first mounting plate 7 is threaded through the second adjusting sliding slot 12 through the fourth connecting member 14, and the first mounting plate 7 can be slidably positioned at different positions of the second adjusting sliding slot 12 through the tightness adjustment of the fourth connecting member 14, so that the first mounting plate 7 can be installed and adjusted in angle in the plane of the second mounting plate 11.
[0051] Specifically, the installation mode of the first mounting plate 7 and the second mounting plate 11 is the same as that of the sensor 2 and the first mounting plate 7, that is, the first mounting plate 7 can be slidably adjusted and positioned at different positions of the second adjusting sliding slot 12 through the tightness adjustment of the fourth connecting member 14 during installation, so as to realize the installation and adjustment in angle of the first mounting plate 7 in the plane of the second mounting plate 11, that is, the sensor 2 can be installed and adjusted in angle in the plane of the second mounting plate 11 together with the first mounting plate 7.
[0052] In this way, the adjustment bracket 3, through the perpendicular first mounting plate 7 and the second mounting plate 11, allows the sensor 2 to be adjusted at its own angle in two mutually perpendicular planes during installation, thus enabling multi-angle installation and facilitating the installation of the sensor 2 at the desired location.
[0053] Furthermore, both the third connector 13 and the fourth connector 14 can be bolt and nut assemblies.
[0054] In one example, such as Figures 3 to 5 As shown, both the first adjusting slide 8 and the second adjusting slide 12 are arc-shaped grooves. Specifically, the first adjusting slide 8 is an arc-shaped groove formed with the center of the connecting hole on the first mounting plate 7 as the center. The second adjusting slide 12 is an arc-shaped groove formed with the center of the connecting hole on the second mounting plate 11 as the center.
[0055] In one example, such as Figures 3 to 5 As shown, the first mounting plate 7 is fixedly connected to a first connecting plate 15 for connecting with the second mounting plate 11, and the first connecting plate 15 is provided with two connecting holes (not shown in the figure) that correspond to and cooperate with the third connecting member 13 and the fourth connecting member 14. These two connecting holes correspond to the connecting holes and the second adjusting groove 12 on the second mounting plate 11, respectively, and cooperate with the third connecting member 13 and the fourth connecting member 14 to realize the connection between the first mounting plate 7 and the second mounting plate 11.
[0056] The second mounting plate 11 is fixedly connected to the second connecting plate 16, which has mounting holes 17 for installation near the valve. Thus, the adjusting bracket 3 can be fixedly installed in a location on the process pipeline prone to media leakage via the connecting parts fitting into the mounting holes 17.
[0057] Furthermore, the first connecting plate 15 is perpendicular to the first mounting plate 7 and parallel to the second mounting plate 11. The second connecting plate 16 is located at one end of the second mounting plate 11, and the surface of the second connecting plate 16 is at an angle of 60° to 120° to the surface of the second mounting plate 11.
[0058] Furthermore, the surface of the second connecting plate 16 is perpendicular to the surface of the second mounting plate 11.
[0059] In one example, such as Figures 3 to 5 As shown, the sensor 2 is provided with a mounting base 18 for connecting to the first mounting plate 7. The mounting base 18 is provided with two parallel fine-tuning holes 19. The mounting base 18 is positioned at different positions of the two fine-tuning holes 19 through the first connector 9 and the second connector 10, so as to adjust the installation position of the sensor 2.
[0060] In particular, the fine adjustment long holes 19 on the mounting base 18 are the preferred connection holes provided on the sensor 2 in the above-described embodiments. The two fine adjustment long holes 19 are longitudinally arranged parallel to the first mounting plate 7, so that the fine adjustment of the position of the sensor 2 on the first mounting plate 7 can be achieved by adjusting the up-and-down positions of the first connecting member 9 and the second connecting member 10 on the two fine adjustment long holes 19.
[0061] In one example, as shown in Figure 1 , Figure 2 and Figure 6 , the host 1 is provided with a first interface 20 connected with the first connector terminal 4 through a cable 30, and the sensor 2 is provided with a second interface 21 connected with the second connector terminal 5 through the cable 30. It should be noted that the first interface 20 of the host 1 and the second interface 21 of the sensor 2 both have data transmission and power supply functions, and the cable 30 includes data transmission lines and power supply lines. In this way, the host 1 and the sensor 2 are connected through the plug-in connector 6 and the cable 30, and when needed, the host 1 and the sensor 2 can be installed separately at a long distance through the lengthened cable 30, or can be installed integrally by shortening the cable 30 to the maximum extent.
[0062] In one example, as shown in Figure 1 , Figure 2 and Figure 6 , the host 1 includes a first housing 22, a circuit board 23 and a battery 24, and the circuit board 23 and the battery 24 are arranged in the first housing 22. The first housing 22 is designed to be explosion-proof so as to be applicable to work sites with high danger coefficients. The circuit board 23 can include a control board and a communication module. The battery 24 can not only meet the working needs of the host 1 itself, but also supply power to the sensor 2 through the cable 30, and the battery 24 has the functions of charging and discharging.
[0063] In one example, as shown in Figure 1 , Figure 2 and Figure 6 , an antenna 25 is mounted on the top of the first housing 22, and the antenna 25 is used for wireless communication with a server. The antenna 25 can strengthen the wireless communication transmission between the host 1 and the server.
[0064] In one example, as shown in Figure 6 , the first housing 22 can be formed by connecting the upper cover 31 and the lower shell 32 through the screws 33. The upper cover 31 can be provided with a control panel 34 for mounting the antenna 25 on the top. The lower shell 32 can be provided with a magnet 35 on the bottom, and the host 1 can be detachably mounted at different positions through the magnetic attraction.
[0065] In one example, as shown in Figure 1 , Figure 2 and Figure 6As shown, the sensor 2 comprises a second housing 26, a communication board 27, a data processing board 28 and a sensor body 29, which are sequentially arranged in the second housing 26. The second housing 26 also adopts an explosion-proof design, so as to be applicable to a high-risk operation site.
[0066] In one example, as shown in the figure, the second housing 26 can comprise a threaded connection cavity cover 36 and a cavity 37. The detection end of the sensor body 29 in the cavity 37 can be provided with a sealing gasket 38, filter paper 39 and air-permeable film 40. Figure 6
[0067] In one example, the first and second joint terminals 4 and 5 can be matched male and female joint terminals, respectively, and both have good waterproof performance.
[0068] In order to better understand the above-mentioned embodiments, the working principle and advantages of the detection device of the present application will be further described below with reference to the accompanying drawings.
[0069] The hardware structure principle of the detection device comprises that the host computer 1 is powered by a battery 24 and can also power the sensor 2, and when the battery 24 in the host computer 1 is out of power, it can also be connected with an external power supply for charging. The host computer 1 can be connected with the sensor 2 through the plug-in joint 6 for data transmission and power supply, and the host computer 1 can also be connected with an external power supply through the plug-in joint 6 for charging. The sensor 2 is installed through the adjusting bracket 3, so that the sensor 2 can be adjusted in two mutually perpendicular planes, so that it can be applied to more different installation occasions, and the installation position of the sensor 2 can also be finely adjusted through the fine adjustment long hole 19.
[0070] The principle of the detection device for detecting the leakage of the medium comprises that the sensor 2 is woken up from the low-power sleep state for concentration detection at regular intervals, and the detection result is sent to the host computer 1 through the cable 30 and the plug-in joint 6. The sensor 2 can be selected according to the leakage medium of the valve, and the sensor 2 can be a semiconductor sensor, an infrared sensor, an ultrasonic gas sensor, etc. The host computer 1 supports data reception wake-up in the sleep state, and after being woken up, it determines whether the alarm condition is reached, and temporarily stores or immediately starts the communication module to package and send the sampling time, concentration value, alarm state and other information to the server. If the server has an instruction, the host computer 1 continues to receive the instruction and performs subsequent processing, and after completion, it can enter the low-power sleep state.
[0071] The specific sensor 2 and the host 1 digital communication can include: the sensor 2 focuses on the concentration signal collection, performs the concentration calculation algorithm, and sends the concentration calculation result to the host 1, the function is minimized, and the volume is minimized. The host 1 receives the concentration signal sent by the sensor 2, communicates with the platform end with the server according to the preset leakage alarm strategy, and the platform end can perform trend analysis and predictable maintenance on the alarm state and detection data received by the host 1.
[0072] The detection device of the utility model has at least the beneficial effects compared with the prior art that:
[0073] (1) The host 1 and the sensor 2 are connected through the detachable plug-in connector 6.
[0074] a) The host 1 and the sensor 2 are designed in a split type, and are detachable through the plug-in connector 6; the sensor 2 can be positioned and installed at the leakage point for accurate detection; the host 1 can be installed at a position convenient for communication and installation to realize accurate communication.
[0075] b) The first connector terminal 4 between the host 1 and the sensor 2 supports charging, and charging does not require a separate interface and does not need to be opened, realizing multiple functions of one interface.
[0076] c) The first connector terminal 4 can be connected with the second connector terminal 5 in a plug-in mode when the host 1 and the sensor 2 need to transmit data, and is disconnected when the host 1 needs to be charged; and the plug-in mode can replace the sensor 2 according to the valve medium, and use different principles for leakage detection, and is flexible in application.
[0077] (2) The sensor 2 adopts an adjustable installation mode, and can be adjusted in different directions based on the installation position; and the sensor 2 also has a fine adjustment function.
[0078] (3) The host 1 is powered by the battery 24 and transmits wirelessly, and can be quickly put into use without stopping work, construction and wiring; the host 1 adopts an ultra-low power consumption design, has super-long endurance, and has less maintenance workload; the host 1 and the server adopt NB wireless communication, have less field interference, have low power consumption, and have high communication reliability; the shell adopts an explosion-proof design and supports use in an explosion-proof area.
[0079] (4) The detection device can replace manual inspection by users, saves manpower, improves detection frequency, detects leakage in time, and performs trend analysis on leakage, evaluates the reliability of the valve, performs predictive maintenance, and reduces safety risks.
[0080] Although the utility model has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the utility model and equivalent replacements can be made to the components therein. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A detection device for valve leak detection, characterized in that, The device comprises a host and a sensor, the host is used to be installed at a position far away from a valve, the sensor is installed at a position close to the valve through an adjusting support, the adjusting support can adjust the installation angle of the sensor so that the sensor corresponds to a leak-prone point of the valve. The host is connected with a first joint terminal, the sensor is connected with a second joint terminal, the first joint terminal and the second joint terminal are plug-in connected to form a plug-in joint, and the plug-in joint is used for data transmission and power transmission between the host and the sensor.
2. The detection apparatus for valve leak detection of claim 1, wherein, The adjusting support comprises a first mounting plate for mounting the sensor, and the first mounting plate is provided with a first adjusting sliding groove. One side of the sensor is positioned and connected to the first mounting plate through a first connecting piece, and the other side of the sensor is threaded through the first adjusting sliding groove through a second connecting piece, and the second connecting piece can be adjusted in tightness to slide and be positioned at different positions of the first adjusting sliding groove, so that the sensor can be adjusted in installation angle in the plane of the first mounting plate.
3. The detection apparatus for valve leak detection of claim 2, wherein, The adjusting support further comprises a second mounting plate, and the first mounting plate is vertically mounted on the second mounting plate, and the second mounting plate is provided with a second adjusting sliding groove. One side of the first mounting plate is positioned and connected to the second mounting plate through a third connecting piece, and the other side of the first mounting plate is threaded through the second adjusting sliding groove through a fourth connecting piece, and the fourth connecting piece can be adjusted in tightness to slide and be positioned at different positions of the second adjusting sliding groove, so that the first mounting plate can be adjusted in installation angle in the plane of the second mounting plate.
4. The detection apparatus for valve leak detection of claim 3, wherein, The first adjusting sliding groove and the second adjusting sliding groove are both arc-shaped grooves.
5. The detection apparatus for valve leak detection of claim 3, wherein, The first mounting plate is fixedly connected with a first connecting plate for connecting with the second mounting plate, and the first connecting plate is provided with two connecting holes corresponding to the third connecting piece and the fourth connecting piece; The second mounting plate is fixedly connected with a second connecting plate, and the second connecting plate is provided with a mounting hole for being mounted close to the valve.
6. The detection apparatus for valve leak detection of claim 2, wherein, The sensor is provided with a mounting seat for connecting with the first mounting plate, and the mounting seat is provided with two mutually parallel fine adjustment long holes, and the mounting seat is positioned and connected at different positions of the two fine adjustment long holes through the first connecting piece and the second connecting piece, so as to adjust the installation position of the sensor.
7. The detection apparatus for valve leakage detection according to any one of claims 1 to 6, characterized in that, The host is provided with a first interface, and the first interface is connected with the first joint terminal through a cable; the sensor is provided with a second interface, and the second interface is connected with the second joint terminal through a cable.
8. The detection apparatus for valve leakage detection according to any one of claims 1 to 6, characterized in that, The host comprises a first housing, a circuit board and a battery, and the circuit board and the battery are arranged in the first housing.
9. The detection apparatus for valve leak detection of claim 8, wherein, An antenna is mounted on the top of the first housing, and the antenna is used for wireless communication with a server.
10. The detection apparatus for valve leak detection according to any one of claims 1 to 6, characterized in that, The sensor comprises a second housing, a communication board, a data processing board and a sensor body, and the communication board, the data processing board and the sensor body are sequentially arranged in the second housing.