CN215984916U

CN215984916U - Non-intrusive self-power-taking wireless temperature measurement sensor for pipeline fluid

Info

Publication number: CN215984916U
Application number: CN202120738980.0U
Authority: CN
Inventors: 郭晨华; 潘晨曦; 宁松浩; 汪俊; 杨志强
Original assignee: Zhuhai One Multi Intelligence Technology Co ltd; ZHUHAI YADO MONITORING TECHNOLOGY CO LTD
Current assignee: Zhuhai One Multi Intelligence Technology Co ltd; ZHUHAI YADO MONITORING TECHNOLOGY CO LTD
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2022-03-08
Anticipated expiration: 2031-04-12

Abstract

The utility model provides a non-intrusive self-powered wireless temperature measurement sensor for pipeline fluid, which comprises an intelligent bolt, a pipeline heat conduction base, a bottom temperature measurement probe and a shell temperature measurement probe, wherein the intelligent bolt is arranged on the pipeline heat conduction base, the pipeline heat conduction base is fixed on the outer wall surface of a pipeline needing temperature measurement, the bottom temperature measurement probe is arranged at the bottom of the pipeline heat conduction base, a connecting wire of the bottom temperature measurement probe penetrates through a wire hole in the pipeline heat conduction base and is connected with a temperature measurement circuit in the intelligent bolt, the shell temperature measurement probe is arranged on the surface of a radiator shell of the intelligent bolt, and the connecting wire of the shell temperature measurement probe penetrates through the wire hole in the radiator and is connected with the temperature measurement circuit. The utility model can realize high-precision and high-reliability temperature measurement without considering environmental conditions or interfering the process, thereby obviously improving the safety of the system. The sensor is fast and simple in pipeline surface installation mode, a temperature measuring hole is omitted, the cost required by a hole opening process is avoided, and the equipment cost is greatly reduced.

Description

Non-intrusive self-power-taking wireless temperature measurement sensor for pipeline fluid

Technical Field

The utility model relates to the technical field of temperature sensor equipment, in particular to a non-intrusive self-powered wireless temperature measurement sensor for pipeline fluid.

Background

Almost all chemical processes require temperature measurement. The method aims to ensure the safety of the system, ensure the product quality and improve the process efficiency. Conventional temperature measurement in process technology is performed by inserting a temperature sensor with a thermally conductive protective sleeve directly into the fluid (usually in a vessel or pipe). The fluid consists of a liquid, colloidal or gaseous substance, usually also a mixture of these substances, and may also contain solid particles. The fluid is chemically corrosive and abrasive, and may be stationary or may flow at high velocity.

Conventional temperature measurement in contact with a fluid has many difficulties. For reliability and safety, these difficulties must be overcome, which results in high costs. The temperature sensing holes are opened when the pipeline is planned and designed, and the temperature sensor is inserted into the fluid through the temperature sensing holes, which results in cost. The openings require flanges and structural reinforcement, which must meet some of the most stringent safety requirements. The thermally conductive protective sleeve is designed to protect the temperature sensor from chemical and mechanical stresses. The case where abrasive dust or sand passes through a pipe at high speed is a challenge of high difficulty. Since both abrasive media and chemically aggressive media can cause severe damage to the thermally conductive protective sleeves, these must be inspected and replaced periodically. Special heat conducting protective sleeve materials result in high additional costs. If the heat-conducting protective sleeve must be inspected or replaced, the process equipment must be taken out of service and the contents typically must be completely emptied. Furthermore, cleaning costs may be increased if a thermally conductive protective sleeve is used in the conduit.

In addition to increased costs, safety aspects are also very important. A thermally conductive protective sleeve placed in a flowing medium may vibrate, and in extreme cases even break, due to the effect of the eddy currents. This can have serious consequences not only for the process equipment but also for the external environment. In 1995, in a Mongolian nuclear power plant in Japan, a heat-conductive protective sleeve is broken due to formation of eddy current, a large amount of sodium leaks, so that a chemical reaction occurs in the system, excessive heat is generated after steel parts are melted, and an accident is serious. ASMEPTC19.3TW2010 and later, and 2016, the specification and standard for stability of thermally conductive protective sleeves have become more stringent over time, and therefore have increased maintenance and replacement costs. The above safety risks and cost factors can be eliminated if the fluid temperature can be measured outside the pipe in a non-invasive and reliable manner.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a pipeline fluid non-intrusive self-powered wireless temperature measurement sensor, which solves the problems that the internal temperature of a medium-temperature or high-temperature fluid pipeline in the chemical industry is inconvenient to monitor, the sensor is difficult to install, the process is complex, a sensor container is damaged, the internal fluid temperature of the pipeline cannot be monitored, the structure is complex, external power supply is needed, the communication adopts a wired mode and the like.

The utility model provides a non-intrusive self-powered wireless temperature measurement sensor for pipeline fluid, which comprises an intelligent bolt, a pipeline heat conduction base, a bottom temperature measurement probe and a shell temperature measurement probe, wherein the intelligent bolt is installed on the pipeline heat conduction base, the pipeline heat conduction base is fixed on the outer wall surface of a pipeline needing temperature measurement, the bottom temperature measurement probe is installed at the bottom of the pipeline heat conduction base, a connecting wire of the bottom temperature measurement probe penetrates through a wire hole in the pipeline heat conduction base and is connected with a temperature measurement circuit in the intelligent bolt, the shell temperature measurement probe is installed on the surface of a radiator shell of the intelligent bolt, and a connecting wire of the shell temperature measurement probe penetrates through the wire hole in the radiator and is connected with the temperature measurement circuit in the intelligent bolt.

Furthermore, the temperature measuring device also comprises a metal binding belt, and the pipeline heat conducting base is fixed on the outer wall surface of the pipeline needing temperature measurement through the metal binding belt.

Further, still include wireless communication module, wireless communication module with the inside controller of intelligent bolt is connected.

Further, still include the difference in temperature energy collector, the difference in temperature energy collector with the inside controller of intelligent bolt is connected.

Further, the intelligent bolt also comprises a memory, and the memory is connected with the controller inside the intelligent bolt.

Further, the wireless communication module comprises a 2.4GLora module, a ZigBee module and a WirelessHART module.

Further, the pipe heat conducting base is made of epoxy coated aluminum or stainless steel.

Compared with the prior art, the utility model has the beneficial effects that:

the non-intrusive self-powered wireless temperature measurement sensor for the pipeline fluid can realize high-precision temperature measurement application of the fluid in the chemical industry pipeline. Under actual conditions, the non-intrusive temperature measurement accuracy and the response time almost reach the performance of the traditional intrusive temperature sensor. This also indicates that non-invasive temperature measurements have excellent applicability in many application scenarios. The sensors are mounted on the surface of the pipe and in many cases can accurately determine the temperature of the fluid and can be reused to suit a variety of specific applications.

The non-intrusive self-powered wireless temperature measurement sensor can realize high-precision and high-reliability temperature measurement, does not need to consider environmental conditions, does not interfere the process, and obviously improves the system safety. The sensor is fast and simple in pipeline surface installation mode, a temperature measuring hole is omitted, the cost required by a hole opening process is avoided, and the equipment cost is greatly reduced. In addition, the flexibility of the system is improved, and the sensor can be installed at any time, even temporarily installed to carry out temperature measurement.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a schematic diagram of a non-intrusive self-powered wireless temperature measurement sensor for a pipeline fluid according to the present invention;

FIG. 2 is a cross-sectional view of a non-intrusive self-powered wireless temperature sensor for pipeline fluid.

In the drawings: 1. an intelligent bolt; 2. a pipeline heat conducting base; 3. a metal strap; 4. a pipeline; 5. a shell temperature measuring probe; 6. a bottom temperature measuring probe.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

A non-intrusive self-powered wireless temperature measurement sensor for pipeline fluid is shown in figures 1-2 and comprises an intelligent bolt 1, a pipeline heat conduction base 2, a bottom temperature measurement probe 6, a shell temperature measurement probe 5 and a temperature measurement element which is cancelled in the original intelligent bolt 1, wherein the intelligent bolt 1 is arranged on the pipeline heat conduction base 2, the pipeline heat conduction base 2 is fixed on the outer wall surface of a pipeline 4 which needs to measure temperature, the bottom temperature measurement probe 6 is arranged at the bottom of the pipeline heat conduction base 2, closely contacted with the outer wall surface of the pipeline 4, the connecting wire of the bottom temperature measuring probe 6 passes through the wire hole inside the pipeline heat conducting base 2, is connected with a temperature measuring circuit in the intelligent bolt 1, a shell temperature measuring probe 5 is arranged on the surface of a radiator shell of the intelligent bolt 1, and the connecting wire of the shell temperature measuring probe 5 penetrates through a wire hole in the radiator to be connected with a temperature measuring circuit in the intelligent bolt 1 when contacting with the outside air. The bottom temperature probe 6 is used for measuring the temperature of the outer surface of the pipeline 4, and the shell temperature probe 5 is used for measuring the ambient temperature of the sensor. The sensor is provided with two temperature probes, the surface temperature of the pipeline 4 at a measuring point is measured, the ambient temperature nearby is also measured, and the model algorithm developed for non-intrusive temperature measurement considers the ambient condition in the measuring process, so that the measuring precision is obviously improved.

As shown in fig. 1, the temperature measuring device further comprises a metal binding belt 3, and the pipeline heat conducting base 2 is fixed on the outer wall surface of the pipeline 4 needing temperature measurement through the metal binding belt 3.

In an embodiment, the intelligent bolt further comprises a wireless communication module, and the wireless communication module is connected with a controller inside the intelligent bolt 1. The wireless communication mode and the standard wireless communication protocol commonly used in the industry are adopted, and preferably, a 2.4GLora module, a ZigBee module, a WirelessHART module and the like are adopted, so that the wireless communication method and the wireless communication system are suitable for subsequent expansion of engineering. The sensor is integrated into the existing background system through a wireless communication protocol.

In one embodiment, the intelligent bolt further comprises a temperature difference energy collector, and the temperature difference energy collector is connected with a controller inside the intelligent bolt 1. The temperature difference energy collector recovers the required electric energy from the temperature difference between the tested equipment and the ambient temperature and supplies the electric energy required by the working of the sensor, thereby realizing the completely autonomous operation. When the sensor is installed, the production process does not need to be interrupted. Through a large amount of engineering data, the structure and material selection of the sensor is optimized for matching different fluid states. The intelligent bolt 1 further comprises a memory, the memory is connected with a controller inside the intelligent bolt 1, the memory stores a pipeline fluid non-intervention temperature measurement algorithm, and the temperature of fluid in the pipeline 4 is calculated in real time through calculation of the controller.

The pipeline heat conduction base 2 is a supporting structural member of the sensor. The thermoelectric generation piece in the intelligent bolt 1 has a certain temperature working range, and generally needs the working temperature to be less than 85 ℃. When 4 high temperatures of pipeline under test, through the radiating effect of pipeline heat conduction base 2, reduce the high temperature of pipeline 4 to the middle temperature that intelligent bolt 1 can work. The pipe heat conduction base 2 conducts the temperature of the surface of the pipe 4 to the intelligent bolt 1, and the heat conduction coefficient is relatively stable. The pipeline heat conduction base 2 is made of epoxy coating aluminum or stainless steel, and the temperature measuring range of the sensor is-40 to 400 ℃.

The non-intrusive temperature difference self-power-taking wireless temperature measurement sensor can provide very high measurement precision only through the optimized design of heat conduction, but the accuracy can be better improved based on a model algorithm in consideration of environmental conditions. The controller firmware built in the sensor is configured with a model algorithm, and the fluid temperature can be calculated and output in real time.

The non-intrusive self-powered wireless temperature measurement sensor for the pipeline fluid greatly prolongs the service life of the temperature measurement sensor and improves the temperature measurement precision of the fluid in the pipeline, thereby solving a series of systematic problems of the tested equipment related to the precision problem of the sensor, realizing self detection and self calibration of various temperature measurement sensors, reducing manual maintenance and detection calibration work, enabling long-term online operation of the sensor to be possible and prolonging the reexamination period of the temperature measurement sensor. High user-friendliness, the device is also easy to handle after simple surface mounting, can be put into use immediately, and the sensor can be used flexibly at different measuring points.

The foregoing is merely a preferred embodiment of the utility model and is not intended to limit the utility model in any manner; those skilled in the art can readily practice the utility model as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the utility model as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A non-intrusive self-powered wireless temperature measurement sensor for pipeline fluid is characterized in that: including intelligent bolt, pipeline heat conduction base, bottom temperature probe, casing temperature probe, intelligence bolt is installed on the pipeline heat conduction base, pipeline heat conduction base is fixed on the outer wall of the pipeline that needs the temperature measurement, bottom temperature probe installs the bottom of pipeline heat conduction base, bottom temperature probe's connecting wire is followed pass in the inside line hole of pipeline heat conduction base, with the inside temperature measurement circuit connection of intelligence bolt, casing temperature probe installs the radiator casing surface of intelligence bolt, casing temperature probe's connecting wire is followed pass in the inside line hole of radiator, with the inside temperature measurement circuit connection of intelligence bolt.

2. The non-intrusive, self-powered, wireless temperature measurement sensor for a pipeline fluid of claim 1, wherein: the pipeline heat conducting base is fixed on the outer wall surface of the pipeline needing temperature measurement through the metal binding bands.

3. The non-intrusive, self-powered, wireless temperature measurement sensor for a pipeline fluid of claim 1, wherein: still include wireless communication module, wireless communication module with the inside controller of intelligence bolt is connected.

4. The non-intrusive, self-powered, wireless temperature measurement sensor for a pipeline fluid of claim 1, wherein: still include the difference in temperature energy collector, the difference in temperature energy collector with the inside controller of intelligent bolt is connected.

5. The non-intrusive, self-powered, wireless temperature measurement sensor for a pipeline fluid of claim 1, wherein: the intelligent bolt further comprises a memory, and the memory is connected with the controller inside the intelligent bolt.

6. The non-intrusive, self-powered, wireless temperature measurement sensor for a pipeline fluid of claim 3, wherein: the wireless communication module comprises a 2.4GLora module, a ZigBee module and a WirelessHART module.

7. The non-intrusive, self-powered, wireless temperature measurement sensor for a pipeline fluid of claim 1, wherein: the pipe heat conducting base is made of epoxy coating aluminum or stainless steel.