Sensor mounting device for leak detection

Abstract

The utility model discloses a sensor mounting device for leak detection, which relates to the technical field of pipeline leak detection, and comprises an air pipe and a sensor, a plurality of groups of mounting holes for leak detection are arranged on the air pipe in a penetrating manner, sealing mounting pieces for mounting the sensor are inserted into the mounting holes, and the sealing mounting pieces comprise at least two groups of assembling pieces and sealing pieces. The plurality of groups of assembling pieces are spliced and fixed through the sealing pieces and clamp the sensor, a probe of the sensor is inserted into the mounting hole, and the sealing pieces abut between the outer wall of the probe and the inner wall of the mounting hole. The device is simple in structure, has universality, can adapt to sensors and air pipes of different sizes, can complete sealing in the process of installing the sensors on the air pipes, is convenient to install, and greatly saves time cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pipeline leak detection technical field, especially relate to a sensor installation device for leak detection. BACKGROUND

[0002] At present, pipeline leak detection and positioning method is divided into direct detection method and indirect detection method from detection means, such as magnetic flux leakage detection method, eddy current detection method, ultrasonic detection method. The advantages of such method are high precision, accurate detection, and it is suitable for pipeline with larger diameter and less elbow and communication; the disadvantage is that detection cannot be continuous but only intermittent, prone to pipeline blockage, outage accident, and the cost is higher, and the efficiency is low, lack of observability, and it is difficult to observe the specific situation of pipeline inner wall defect.

[0003] Optical fiber sensing technology has the advantages of high sensitivity and strong anti-electromagnetic interference ability, and has application potential in pipeline detection, but due to the high cost of optical fiber laying, the development cost of optical fiber modulation and demodulation system itself is also high, and the popularization effect is poor in actual engineering application. Using sensor detection saves cost and has high extraction precision. Therefore, a device is needed to conveniently install the sensor on the air pipe and ensure the air tightness. UTILITY MODEL CONTENT

[0004] In view of the problems mentioned in the background art, the utility model aims to provide a sensor installation device for leak detection to solve the problems mentioned in the background art.

[0005] The above technical purpose of the utility model is realized by the following technical scheme:

[0006] A sensor installation device for leak detection, comprising an air pipe and a sensor, a plurality of installation holes for leak detection are provided on the air pipe, a sealing installation part for installing the sensor is inserted into the installation hole, the sealing installation part comprises at least two assembly parts and a sealing part, the plurality of assembly parts are fixed and clamped by the sealing part, the probe of the sensor is inserted into the installation hole, and the sealing part abuts between the outer wall of the probe and the inner wall of the installation hole.

[0007] As a preferred technical scheme, the assembly part comprises a fastening ring, and the inner wall of the fastening ring abuts against the outer wall of the sensor.

[0008] As a preferred technical scheme, the assembly part further comprises two groups of splicing strips, the two groups of splicing strips are respectively installed at both ends of the fastening ring, and the adjacent two groups of assembly parts are fixedly connected through the splicing strips.

[0009] As a preferred technical scheme, the sealing part comprises a sealing ring and at least two groups of insertion rings, the insertion rings are respectively and one by one arranged at one end of the assembly part close to the air pipe, the sealing ring is sleeved on the combined insertion ring, the outer ring wall of the sealing ring abuts against the inner wall of the installation hole, and the inner ring wall of the sealing ring abuts against the outer wall of the probe.

[0010] As a preferred technical solution, the outer diameter of the sealing ring is larger than the inner diameter of the mounting hole.

[0011] As a preferred technical solution, the sealing installation component also includes a reinforcement component, which surrounds the air pipe 1 and has its two ends installed on the two sets of assembly parts respectively.

[0012] As a preferred technical solution, the reinforcement components can be detachably installed on the assembled parts.

[0013] As a preferred technical solution, the reinforcement component includes a first clamp and a second clamp, which are arranged in a ring to fix the air tube. One end of the first clamp and the second clamp are respectively installed on two sets of fastening rings, and the other end is respectively installed with a first assembly strip and a second assembly strip. The first assembly strip and the second assembly strip are adjacent to each other and are fixedly connected by fasteners.

[0014] As a preferred technical solution, the first clamp is symmetrical to the second clamp.

[0015] This device has a simple structure and is versatile, adaptable to sensors and tubing of different sizes. It can also be sealed during the installation of the sensor into the tubing, making installation convenient and greatly saving time and costs.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of the detection module of a leak detection sensor mounting device proposed in this utility model;

[0018] Figure 2 for Figure 1 The right view section;

[0019] Figure 3 for Figure 1 The front view section;

[0020] Figure 4 This is a flowchart of a leak detection sensor installation device proposed in this utility model.

[0021] Reference numerals: 1. Air tube; 2. Sealing installation component; 21. Assembly component; 211. Fastening ring; 212. Splicing strip; 22. Sealing component; 221. Sealing ring; 222. Insertion ring; 23. Reinforcing component; 231. First clamp; 232. First assembly strip; 233. Second clamp; 234. Second assembly strip; 3. Sensor; 31. Probe. Detailed Implementation

[0022] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar symbols represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0023] Embodiment 1

[0024] Reference Figures 1-3 The sensor mounting device for leak detection comprises a gas pipe 1, a plurality of groups of sensors 3 and a plurality of groups of sealing mounting pieces 2. A plurality of mounting holes are formed in the gas pipe 1, and the mounting holes, the sensors 3 and the sealing mounting pieces 2 correspond one by one. The sealing mounting piece 2 is used for mounting the sensor 3 on the gas pipe 1. The plurality of groups of sensors 3 are arranged at different positions of the gas pipe 1. The sensor 3 monitors the vibration signal in the gas pipe 1. Since the vibration signals at the leakage position and the normal pipeline position are different, the signals monitored by the sensors 3 at different positions are different.

[0025] Specifically, a plurality of mounting holes are formed through the wall of the gas pipe 1. The sealing mounting piece 2 comprises two groups of assembling pieces 21, a sealing piece 22 and a reinforcing assembly 23. The two groups of assembling pieces 21 embrace the sensor 3. The sealing piece 22 is mounted at one end of the two groups of assembling pieces 21 close to the gas pipe 1. The sealing piece 22 is fixedly inserted into the mounting hole. The probe 31 of the sensor 3 is inserted into the mounting hole through the center hole between the two groups of assembling pieces 21. The reinforcing assembly 23 embraces the gas pipe 1 and is mounted at the two ends of the two groups of assembling pieces 21.

[0026] The assembling piece 21 comprises a fastening ring 211 and two groups of splicing strips 212. The two groups of splicing strips 212 are mounted at the two ends of the fastening ring 211. The two sides of the two groups of fastening rings 211 are fixed by fasteners to fix the two groups of splicing strips 212 close to each other, so that the fastening ring 211 firmly fixes the sensor 3. The inner wall of the fixed fastening ring 211 abuts against the outer wall of the sensor 3.

[0027] The sealing piece 22 comprises a sealing ring 221 and two groups of insertion rings 222. The insertion rings 222 are correspondingly arranged at one end of the fastening ring 211 close to the gas pipe 1. The sealing ring 221 is sleeved on the two groups of insertion rings 222 after merging. The probe 31 is inserted into the inner ring of the sealing ring 221. The inner ring wall of the sealing ring 221 abuts against the outer wall of the probe 31. The outer ring wall of the sealing ring 221 abuts against the inner wall of the mounting hole.

[0028] Preferably, the outer ring outer diameter of the sealing ring 221 is greater than the inner diameter of the mounting hole, so as to ensure sufficient sealing between the sealing ring 221 and the mounting hole. At the same time, for the gas pipe 1 with smaller pressure, the abutting sealing ring 221 can ensure the mounting effect of the sealing mounting piece 2 inserted into the gas pipe 1. At this time, the reinforcing assembly 23 can be removed to save cost and operation time.

[0029] The reinforcing assembly 23 comprises a first clamp 231 and a second clamp 233, which together enclose the trachea 1. One end of the first clamp 231 and the second clamp 233 is respectively installed on the two sets of fastening rings 211, and the other end of the first clamp 231 and the second clamp 233 is respectively provided with a first assembly bar 232 and a second assembly bar 234. The first assembly bar 232 and the second assembly bar 234 are adjacent and fixed by fasteners.

[0030] Preferably, the first clamp 231 and the second clamp 233 are symmetrical about the trachea 1.

[0031] Preferably, the sensor 3 is a CA-YD-103 vibration sensor.

[0032] It is worth noting that the above is one of the preferred ways. The assembly part 21 can be multiple sets, and the adjacent two sets of assembly parts 21 are fixedly connected at the head and tail. The multiple sets of assembly parts 21 can fix the sensor 3. Correspondingly, the fastening ring 211 corresponds to the assembly part 21 one by one, and the plug-in ring 222 corresponds to the fastening ring 211 one by one.

[0033] Preferably, a plurality of through holes are formed on the outer edge of the fastening ring 211. The two sets of reinforcing assemblies 23 are detachably installed on the fastening ring 211 through the through holes and fasteners to facilitate replacement, so as to adapt to tracheas 1 of different diameters. Other detachable installation methods can also be used, such as installing a clamping assembly on the reinforcing assembly 23, which can arbitrarily clamp the fastening ring 211.

[0034] During installation, the multiple sets of assembly parts 21 enclose the sensor 3, and the sealing ring 221 is sleeved on the assembled plug-in ring 222. The fastening ring 211 is tightly clamped on the sensor 3 by tightening the fasteners on the assembly bar 212, and the sealing ring 221 is further tightly attached to the probe 31 to increase the sealing effect. The plug-in ring 222 sleeved with the sealing ring 221 is inserted into the mounting hole, so that the sealing ring 221 tightly abuts against the inner wall of the mounting hole to achieve sealing. Then, the first clamp 231 and the second clamp 233 enclose the trachea 1, and finally the first assembly bar 232 and the second assembly bar 234 are fixed by fasteners.

[0035] The device has simple structure and universality, can adapt to sensors 3 and tracheas 1 of different sizes, and can complete sealing during installation of the sensor 3 to the trachea 1, which is convenient to install and greatly saves time and cost.

[0036] Example 2

[0037] Reference Figure 4The sensor mounting device for leakage detection in the embodiment is used in the trachea leakage detection system based on LabVIEW, the trachea leakage detection system based on LabVIEW further comprises a detection module, a transmission module and an analysis processing module, the detection module is used for monitoring the vibration conditions of multiple monitoring points in the trachea, the transmission module is used for converting the analog signals of the detection module into digital signals and transmitting the digital signals to the analysis processing module, and the analysis processing module is used for processing, analyzing and displaying the digital signals, so that an intuitive contrast image of the normal part and the leakage part of the trachea 1 is obtained.

[0038] The detection module comprises the above multiple sets of mounting members 2 and multiple sets of sensors 3, and the sensors 3 are mounted on the trachea 1 through the mounting members 2 to collect data at various positions of the trachea 1.

[0039] The transmission module comprises multiple sets of data acquisition cards, the data acquisition cards correspond to the sensors 3 one by one, the input ends of the data acquisition cards are electrically connected with the sensors 3, and the output ends of the data acquisition cards are electrically connected with the signal input ends of the analysis processing module. The transmission module is used for converting the analog signals collected by the sensors 3 into digital signals and transmitting the digital signals to the analysis processing module for analysis, comparison and display.

[0040] The analysis processing module comprises a LabVIEW application program, the LabVIEW comprises a serial communication module, a data processing module, a data analysis module and a data display module, the output ends of the multiple sets of data acquisition cards are electrically connected with the serial communication module, the serial communication module transmits the digital signals to the data processing module for processing after receiving the digital signals, the data processing module transmits multiple sets of data to the data analysis module for analysis and comparison after amplification and filtering processing through a conditioning circuit, the data analysis module transmits the analyzed data to the data display module for display of the comparison effect after analysis through an algorithm such as the HHT algorithm, the data display module displays a signal time domain atlas and a signal frequency domain atlas, and the leakage point condition is located and qualitatively analyzed according to the differences between normal signals and abnormal signals displayed in the atlas.

[0041] The system has good dynamic and static characteristics, high vibration sensor extraction precision, small load effect, high anti-interference characteristics, and good detection effect for the 200Hz and 5V or lower micro-vibration and micro-pressure signals generated by leakage.

[0042] It should be understood that the terms "center", "right", "inner", "outer", "radial" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0043] In addition, the terms "first", "second", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0044] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0046] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled in the art within the technical scope disclosed by the present application, according to the technical scheme and the application concept of the present application, can be replaced or changed, which should be covered within the protection scope of the present application.

Claims

1. A leak detection sensor mounting device, comprising an air tube (1) and a sensor (3), characterized in that: Multiple sets of mounting holes for leak detection are opened through the trachea (1). Sealing mounting parts (2) for installing sensors (3) are inserted into the mounting holes. The sealing mounting parts (2) include at least two sets of assembly parts (21) and sealing parts (22). Multiple sets of assembly parts (21) are spliced ​​and fixed by the sealing parts (22) and hold the sensors (3). The probe (31) of the sensor (3) is inserted into the mounting hole, and the sealing parts (22) abut against the outer wall of the probe (31) and the inner wall of the mounting hole.

2. The sensor mounting device for leak detection according to claim 1, characterized in that: The assembly (21) includes a fastening ring (211), the inner wall of which abuts against the outer wall of the sensor (3).

3. The sensor mounting device for leak detection according to claim 2, characterized in that: The assembly (21) also includes two sets of splicing strips (212), which are respectively installed at both ends of the fastening ring (211), and adjacent assemblies (21) are fixedly connected by splicing strips (212).

4. The sensor mounting device for leak detection according to claim 1, characterized in that: The sealing element (22) includes a sealing ring (221) and at least two sets of plug rings (222). The plug rings (222) are respectively set on the end of the assembly (21) near the air tube (1). The sealing ring (221) is sleeved on the merged plug ring (222). The outer ring wall of the sealing ring (221) abuts against the inner wall of the mounting hole, and the inner ring wall of the sealing ring (221) abuts against the outer wall of the probe (31).

5. The sensor mounting device for leak detection according to claim 4, characterized in that: The outer diameter of the sealing ring (221) is larger than the inner diameter of the mounting hole.

6. The sensor mounting device for leak detection according to claim 1, characterized in that: The sealing installation component (2) also includes a reinforcement component (23), which surrounds the air pipe (1) and the two ends of the reinforcement component (23) are respectively installed on the two sets of assembly components (21).

7. The sensor mounting device for leak detection according to claim 6, characterized in that: The reinforcement component (23) can be detachably installed on the assembly component (21).

8. The sensor mounting device for leak detection according to claim 6, characterized in that: The reinforcement component (23) includes a first clamp (231) and a second clamp (233). The first clamp (231) and the second clamp (233) are ring-shaped to fix the air tube (1). One end of the first clamp (231) and the second clamp (233) are respectively installed on two sets of fastening rings (211) opposite to each other. The other end is respectively installed with a first assembly strip (232) and a second assembly strip (234). The first assembly strip (232) and the second assembly strip (234) are adjacent to each other and are fixedly connected by fasteners.

9. The sensor mounting device for leak detection according to claim 6, characterized in that: The first clamp (231) is symmetrical to the second clamp (233).

Images