Split type sensor suitable for high-temperature environment

Abstract

The utility model provides a split type sensor suitable for a high-temperature environment. The split type sensor comprises a high-temperature insensitive part, a high-temperature sensitive part and a signal line connected between the high-temperature insensitive part and the high-temperature sensitive part, the high-temperature insensitive part is mounted in a high-temperature environment, collects vibration data of a hot water pipeline through a built-in piezoelectric sensor and transmits the vibration data to the high-temperature sensitive part through a signal line, so that the hot water pipeline is not in the high-temperature environment; the high-temperature sensitive part supplies power to the high-temperature insensitive part through a signal line and establishes data connection with the cloud server so as to send vibration data collected by the high-temperature insensitive part. The vibration sensor for underground hot water pipeline leakage monitoring can accurately detect leakage of an underground hot water pipeline in real time.

Description

TECHNICAL FIELD

[0001] The present application relates to sensors, in particular to a vibration sensor for monitoring underground hot water pipeline leakage. BACKGROUND

[0002] In a heating pipeline system, pipeline leakage is a common and serious problem that can cause energy waste, environmental pollution, and safety hazards. Traditional leakage detection methods mainly rely on manual inspection, flow monitoring, unmanned aerial vehicle inspection, and pressure monitoring, which have the following shortcomings:

[0003] 1. Manual inspection is inefficient and prone to omissions.

[0004] 2. Flow monitoring cannot detect small leaks in real time.

[0005] 3. Unmanned aerial vehicle inspection is limited and cannot penetrate the interior of the pipeline.

[0006] 4. Pressure monitoring can only provide overall pressure changes and cannot accurately locate leaks.

[0007] 5. Existing sensors are unstable in complex underground environments, especially in high-temperature environments.

[0008] Therefore, there is an urgent need for a new monitoring device that can detect underground hot water pipeline leaks in real time and accurately. CONTENT OF THE INVENTION

[0009] The main technical problem to be solved by the present application is to provide a split type sensor suitable for high temperature environment, which can detect pipeline leakage in high temperature environment in real time and accurately.

[0010] In order to solve the above technical problems, the present application provides a split type sensor suitable for high temperature environment, comprising: a high temperature insensitive component, a high temperature sensitive component, and a signal line connected between the high temperature insensitive component and the high temperature sensitive component;

[0011] The high temperature insensitive component is installed on the pipe wall of the hot water pipeline, and the built-in piezoelectric sensor collects vibration data of the hot water pipeline and transmits it to the high temperature sensitive component through the signal line, so that the high temperature sensitive component is not in the high temperature environment;

[0012] The high temperature sensitive component supplies power to the high temperature insensitive component through the signal line and establishes data connection between the cloud server to send the vibration data collected by the high temperature insensitive component.

[0013] In a preferred embodiment: the high temperature insensitive component includes a shell, a base, a pressing block, a piezoelectric sensor, a positive electrode sheet and a negative electrode sheet;

[0014] The shell and the base fit to form a cavity for accommodating the piezoelectric sensor, the positive electrode sheet, the negative electrode sheet and the pressing block; the positive electrode sheet and the negative electrode sheet are electrically connected with the signal line through the pressing block.

[0015] In a preferred embodiment, the piezoelectric sensor is two and stacked; the positive electrode sheet is arranged between the two piezoelectric sensors, and the negative electrode sheet is arranged on the upper surface of the upper piezoelectric sensor.

[0016] In a preferred embodiment, the piezoelectric sensor is clamped between the pressing block and the base.

[0017] In a preferred embodiment, the pressing block is provided with a passage for the bolt to pass through, the piezoelectric sensor, the positive electrode sheet and the negative electrode sheet are provided with a clearance opening corresponding to the position of the passage, and the base is provided with a threaded hole corresponding to the position of the clearance opening.

[0018] In a preferred embodiment, the inner wall of the passage extends radially inwardly by a ring, and the nut of the bolt abuts against the ring when the bolt is connected with the threaded hole.

[0019] In a preferred embodiment, the side of the base facing the pressing block is provided with a recess for placing the piezoelectric sensor, the positive electrode sheet and the negative electrode sheet, and the bottom of the recess is provided with the threaded hole.

[0020] In a preferred embodiment, the base is provided with a magnet for adsorbing the high-temperature insensitive components on the wall of the hot water pipeline.

[0021] In a preferred embodiment, the high-temperature sensitive component is provided with a built-in battery.

[0022] In a preferred embodiment, the two ends of the signal line are respectively provided with sealing plugs for the high-temperature insensitive component and the high-temperature sensitive component; the sealing plug has an insertion part for inserting the high-temperature insensitive component and the high-temperature sensitive component, and a connecting part for inserting the signal line.

[0023] The insertion part is provided with an annular groove along the circumference, and the high-temperature insensitive component and the high-temperature sensitive component are respectively provided with a flange matched with the annular groove; when the insertion part is inserted into the high-temperature insensitive component and the high-temperature sensitive component, the flange is positioned in the annular groove and is limited by the inner walls on both sides of the annular groove.

[0024] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0025] The utility model provides a kind of split type sensor suitable for high temperature environment, high temperature insensitive component, high temperature sensitive component are arranged;Through the vibration data of hot water pipeline of piezoelectric sensor built-in high temperature insensitive component is collected and is transmitted to the high temperature sensitive component by signal line;High temperature sensitive component is powered by signal line to high temperature insensitive component, and data connection is established between it and cloud server, to send the vibration data of high temperature insensitive component collection. Thus it realizes the vibration sensor of underground hot water pipeline leakage monitoring, can real-time, accurately detect the leakage of underground hot water pipeline. And by high temperature sensitive component and high temperature insensitive component split setting, avoid high temperature sensitive component direct exposure in high temperature environment, greatly increase the stability of sensor. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is the isometric view of the preferred embodiment of the utility model;

[0027] Figure 2 It is the explosion view of the preferred embodiment of the utility model;

[0028] Figure 3 It is the isometric view of high temperature insensitive component in the preferred embodiment of the utility model;

[0029] Figure 4 It is the sectional view of high temperature insensitive component in the preferred embodiment of the utility model;

[0030] Figure 5 It is the isometric view of high temperature sensitive component in the preferred embodiment of the utility model;

[0031] Figure 6 It is the sectional view of high temperature sensitive component in the preferred embodiment of the utility model. DETAILED DESCRIPTION

[0032] In order to make the technical scheme and characteristics of the utility model more clear, the utility model is further detailed below in connection with the drawings and specific examples, should be understood that these examples are only for illustrating the utility model and not for limiting the scope of the utility model, after reading the utility model, the modification of various equivalent forms of the utility model of those skilled in the art all fall in the range defined in the claims attached to the present application.

[0033] REFERENCE Figures 1-6The embodiment provides a split type sensor suitable for high temperature environment, which comprises a high temperature insensitive component 1, a high temperature sensitive component 2 and a signal line 3 connected between the high temperature insensitive component 1 and the high temperature sensitive component 2; the high temperature sensitive component 2 is not directly contacted with the high temperature environment as a data transmission part, and the high temperature insensitive component 1 is directly contacted with the high temperature environment as a data acquisition part. In this way, the vibration data can be collected, and the damage of the sensor caused by exposure of the whole sensor to the high temperature environment can be avoided.

[0034] The high temperature insensitive component 1 is installed on the pipe wall of the hot water pipeline, vibration data of the hot water pipeline are collected by the built-in piezoelectric sensor 11 and transmitted to the high temperature sensitive component 2 through the signal line 3.

[0035] The high temperature sensitive component 2 supplies power to the high temperature insensitive component 1 through the signal line 3, and establishes a data connection between the high temperature sensitive component 2 and a cloud server, so as to send the vibration data collected by the high temperature insensitive component 1. In this way, the vibration sensor for monitoring the underground hot water pipeline leakage can be realized, and the underground hot water pipeline leakage can be detected in real time and accurately.

[0036] In order to realize the function of data collection, the piezoelectric sensor 11 needs to be arranged in the high temperature insensitive component 1, therefore the high temperature insensitive component 1 comprises a shell 12, a base 13, a pressing block 14, the piezoelectric sensor 11, a positive electrode sheet 15 and a negative electrode sheet 16; the shell 12 and the base 13 are combined to form a cavity for accommodating the piezoelectric sensor 11, the positive electrode sheet 15, the negative electrode sheet 16 and the pressing block 14; the positive electrode sheet 15 and the negative electrode sheet 16 are respectively electrically connected with the signal line 3 through the pressing block 14. In this way, the electrical connection between the piezoelectric sensor 11 and the pressing block 14 is realized, after the pipeline vibration is conducted into the sensor, the piezoelectric sensor 11 is pressed to generate electric charge, and the electric charge is collected by the positive electrode sheet 15 and the negative electrode sheet 16 and transmitted to the circuit board of the high temperature sensitive component 2 through the signal line for processing.

[0037] In the embodiment, the piezoelectric sensor 11 is two and stacked; the positive electrode sheet 15 is arranged between the two piezoelectric sensors 11, and the negative electrode sheet 16 is arranged on the upper surface of the upper piezoelectric sensor 11. The negative electrode of the lower piezoelectric sensor 11 is in conduction with the negative electrode of the upper piezoelectric sensor 11 through the base 13, the shell 12 and other metal materials. This structure can realize the collection of the pipeline vibration by two piezoelectric sensors 11.

[0038] In order to fix the piezoelectric sensor 11, the piezoelectric sensor 11 is clamped between the pressing block 14 and the base 13. Specifically, the pressing block 14 is provided with a passage 141 through which a bolt 17 passes, the piezoelectric sensor 11, the positive electrode sheet 15 and the negative electrode sheet 16 are provided with a clearance opening at a position corresponding to the passage 141, and the base 13 is provided with a threaded hole at a position corresponding to the clearance opening. In this way, the bolt 17 can pass through the passage 141 and be connected with the threaded hole through the clearance opening, and finally fix the pressing block 14 and the base 13, so as to clamp the piezoelectric sensor 11 between the pressing block 14 and the base 13.

[0039] In addition, the connection strength between the pressing block 14 and the base 13 needs to be controlled, so as to avoid that the gap between the control panel and the base 13 is too small, causing too much extrusion force on the piezoelectric sensor 11 and resulting in damage to the piezoelectric sensor 11. The inner wall of the passage 141 extends a convex edge 142 radially inward, and when the bolt 17 is connected with the threaded hole, the nut of the bolt 177 abuts against the convex edge 142. By the convex edge 142, the depth of the bolt 17 extending into the threaded hole can be limited, so as to avoid the above-mentioned situation.

[0040] The side of the base 13 facing the pressing block 14 is provided with a recessed cavity for placing the piezoelectric sensor 11, the positive electrode sheet 15 and the negative electrode sheet 16, and the bottom of the recessed cavity is provided with the threaded hole. By the design of the recessed cavity, the positions of the piezoelectric sensor 11, the positive electrode sheet 15 and the negative electrode sheet 16 can be positioned, so that the positions of the piezoelectric sensor 11, the positive electrode sheet 15 and the negative electrode sheet 16 can be automatically aligned with the threaded hole, without the need for excessive correction.

[0041] In order to realize the installation of the high-temperature insensitive component 1 on the pipe wall of the hot water pipeline, the base 13 is provided with a magnet for adsorbing the high-temperature insensitive component 1 on the pipe wall of the hot water pipeline.

[0042] In order to realize the power supply of the high-temperature insensitive component 1 by the high-temperature sensitive component 2 through the signal line 3, the high-temperature sensitive component 2 is provided with a built-in battery 21 and a circuit board.

[0043] Finally, the high-temperature insensitive component 1 and the high-temperature sensitive component 2 are stably connected through a signal line 3, two ends of the signal line 3 are respectively provided with sealing plugs 31 of the high-temperature insensitive component 1 and the high-temperature sensitive component 2; the sealing plug 31 has an insertion part 311 inserted into the high-temperature insensitive component 1 and the high-temperature sensitive component 2, and a connecting part 312 inserted into the signal line 3; the insertion part 311 is provided with an annular groove 3111 along the circumference, the high-temperature insensitive component 1 and the high-temperature sensitive component 2 are respectively provided with flanges 18, 22 matched with the annular groove 3111, when the insertion part 311 is inserted into the high-temperature insensitive component 1 and the high-temperature sensitive component 2, the flanges 18, 22 are placed in the annular groove 3111 and are respectively limited and matched with the inner walls on both sides of the annular groove 3111.

[0044] The above is only one specific embodiment of the present application, but the design concept of the present application is not limited thereto, and any non-substantial change of the present application using the concept shall be regarded as an infringement of the protection scope of the present application.

Claims

1. A split-type sensor suitable for high-temperature environments, characterized in that... include: High-temperature insensitive components, high-temperature sensitive components, and signal lines connecting the high-temperature insensitive components and the high-temperature sensitive components; The high-temperature insensitive component is installed in a high-temperature environment. It collects vibration data of the hot water pipe through a built-in piezoelectric sensor and transmits it to the high-temperature sensitive component through a signal line, so that the high-temperature sensitive component is not in the high-temperature environment. The high-temperature sensitive component supplies power to the high-temperature insensitive component via a signal line and establishes a data connection with the cloud server to send vibration data collected by the high-temperature insensitive component.

2. A split-type sensor suitable for high-temperature environments according to claim 1, characterized in that: The high-temperature insensitive component includes a housing, a base, a pressure block, a piezoelectric sensor, a positive electrode plate, and a negative electrode plate; The outer shell and the base are assembled to form a cavity for accommodating the piezoelectric sensor, the positive electrode plate, the negative electrode plate, and the pressure block; the positive electrode plate and the negative electrode plate are respectively electrically connected to the signal line after passing through the pressure block with wires.

3. A split-type sensor suitable for high-temperature environments according to claim 2, characterized in that: There are two piezoelectric sensors, which are stacked together; the positive electrode is disposed between the two piezoelectric sensors, and the negative electrode is disposed on the upper surface of the upper piezoelectric sensor.

4. A split-type sensor suitable for high-temperature environments according to claim 3, characterized in that: The piezoelectric sensor is clamped between the pressure block and the base.

5. A split-type sensor suitable for high-temperature environments according to claim 3, characterized in that: The pressure block is provided with a channel for bolts to pass through. The piezoelectric sensor, the positive electrode plate and the negative electrode plate are provided with clearance openings at the positions corresponding to the channels. The base is provided with threaded holes at the positions corresponding to the clearance openings.

6. A split-type sensor suitable for high-temperature environments according to claim 5, characterized in that: The inner wall of the channel extends radially inward with a raised edge, and when the bolt is connected to the threaded hole, the nut of the bolt abuts against the raised edge.

7. A split-type sensor suitable for high-temperature environments according to claim 6, characterized in that: The base has a recessed cavity on the side facing the pressure block for placing the piezoelectric sensor, the positive electrode plate, and the negative electrode plate, and the bottom of the recessed cavity has a threaded hole.

8. A split-type sensor suitable for high-temperature environments according to claim 2, characterized in that: The base is equipped with magnets for adsorbing high-temperature insensitive components onto the wall of the hot water pipe.

9. A split-type sensor suitable for high-temperature environments according to claim 1, characterized in that: The high-temperature sensitive component has a built-in battery and circuit board.

10. A split-type sensor suitable for high-temperature environments according to claim 1, characterized in that: The signal line is provided with sealing plugs for a high-temperature insensitive component and a high-temperature sensitive component at its two ends respectively; the sealing plug has an insertion portion for inserting into the high-temperature insensitive component and the high-temperature sensitive component, and a connection portion for inserting into the signal line; The insertion part is provided with an annular groove along the circumference. The high-temperature insensitive component and the high-temperature sensitive component are respectively provided with flanges that cooperate with the annular groove. When the insertion part is inserted into the high-temperature insensitive component and the high-temperature sensitive component, the flanges are placed in the annular groove and are respectively limited and cooperated with the inner walls on both sides of the annular groove.

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