阅读说明：本技术 一种锅炉管道内水温检测装置 (Water temperature detection device in boiler pipeline ) 是由 翟国强 李腾 管莹莹 杜筱兰 贾庆安 许睿 王玥 于 2020-12-09 设计创作，主要内容包括：本发明公开了一种锅炉管道内水温检测装置,属于锅炉管道水温检测领域,解决了现有技术管道检测较难、检测装置不耐用、检测装置需要与锅炉内水接触造成热量损失等问题；微型天线、绝热层、半导体温差发电片、低噪声放大器、无线通讯芯片、温度传感器、电源存储装置、数据存储装置、微处理器、定位芯片、导热层。本发明主要利用三种技术：一是利用激光熔覆技术为装置涂覆绝热涂层,有效阻隔外部热量入侵内部元器件；二是利用半导体温差发电片,有效利用锅炉管道的余热为装置提供电力,有效提高余热利用率；三是利用定位技术与无线通信技术,为锅炉管道的水温进行实时监测,通过微型天线及低噪声放大器为装置数据传输提供有效保证,便于建立温控管理系统。(The invention discloses a water temperature detection device in a boiler pipeline, belongs to the field of water temperature detection of boiler pipelines, and solves the problems that in the prior art, pipeline detection is difficult, the detection device is not durable, the detection device needs to be in contact with water in a boiler to cause heat loss and the like; the temperature-difference power generation device comprises a micro antenna, a heat insulation layer, a semiconductor temperature difference power generation sheet, a low-noise amplifier, a wireless communication chip, a temperature sensor, a power supply storage device, a data storage device, a microprocessor, a positioning chip and a heat conduction layer. The invention mainly utilizes three technologies: firstly, a laser cladding technology is utilized to coat a heat insulation coating on the device, so that external heat can be effectively prevented from invading internal components; secondly, the semiconductor thermoelectric power generation sheet is utilized, the waste heat of the boiler pipeline is effectively utilized to provide power for the device, and the waste heat utilization rate is effectively improved; and thirdly, a positioning technology and a wireless communication technology are utilized to monitor the water temperature of the boiler pipeline in real time, and a micro antenna and a low-noise amplifier are utilized to provide effective guarantee for data transmission of the device, so that a temperature control management system is convenient to establish.)

1. A water temperature detection device in a boiler pipeline comprises an outer side data processing part and an inner side temperature measuring part; the method is characterized in that:

the outside includes: the device comprises a micro antenna (1), a heat insulation layer (2), a semiconductor thermoelectric generation sheet (3), a low-noise amplifier (4), a wireless communication chip (5), a power storage device (8), a data storage device (9), a microprocessor (10) and a positioning chip (11);

the inside includes: the heat insulation layer (6), the temperature sensor (7) and the heat conduction layer (12).

2. The apparatus for detecting the temperature of water in a boiler pipe according to claim 1, wherein: the heat insulation layer (2) on the outer side is provided with two openings for mounting the micro antenna (1) and the semiconductor thermoelectric generation sheet (3); the upper surface of the miniature antenna (1) is provided with a quartz glass sheet for blocking water vapor; the semiconductor thermoelectric generation sheet (3) on the outer side is connected with a power storage device (8); the miniature antenna (1) on the outer side is connected with the low noise amplifier (4) and the wireless communication chip (5) to provide data transmission; the positioning chip (11) on the outer side is connected with the low-noise amplifier (4) and used for establishing positioning information; the positioning chip (11) on the outer side is connected to the microprocessor (10); the microprocessor (10) on the outer side is connected with a data storage device (9).

3. The apparatus for detecting the temperature of water in a boiler pipe according to claim 1, wherein: the outer surface of the inner side is a heat insulation layer (6) for isolating high temperature; six temperature sensors (7) are arranged on the inner side of the heat insulation layer (6) on the inner side for detecting temperature; the temperature sensor (7) on the inner side is connected with the microprocessor (10) to transmit temperature data; after receiving the temperature data, the microprocessor (10) marks a tag of positioning information on the temperature data, stores the temperature data in the data storage device (9), and simultaneously transmits the data to a cloud end through the wireless communication chip (5) for storage and real-time updating; the inner heat conducting layer (12) is used for contacting the outside of the boiler pipeline, and the heat conducting layer (12) is made of metal with high heat conductivity coefficient.

4. The apparatus for detecting the temperature of water in a boiler pipe according to claim 1, wherein: the heat insulating layer (2) and the heat insulating layer (6) are made of heat insulating composite ceramic materials.

5. The apparatus for detecting the temperature of water in a boiler pipe according to claim 4, wherein: the heat-insulating composite ceramic material is formed by compounding zirconium dioxide and other metal powder and then performing laser cladding.

6. The apparatus for detecting the temperature of water in a boiler pipe according to claim 5, wherein: the particle size of the zirconium dioxide and the metal powder is 250-350 meshes; the laser cladding process parameters are as follows: the laser power is 2000-2500W, the scanning speed is 2-6mm/s, the protector flow is 500-1000L/h, and the powder feeding speed is 20-120 g/min.

7. The apparatus for detecting the temperature of water in a boiler pipe according to claim 1, wherein: the power supply of the water temperature detection device is from a semiconductor thermoelectric generation sheet (3), the external temperature is isolated through a heat insulation layer (6), the internal and external temperature difference is utilized to generate electric energy, and the waste heat of a boiler is utilized to provide power for the device.

8. The apparatus for detecting the temperature of water in a boiler pipe according to claim 1, wherein: the device is nested outside the boiler pipeline, and the temperature measurement precision is improved through the heat conduction layer (12); the six temperature sensors (7) reduce temperature measurement errors, compensate the temperature by calculating the heat conduction coefficient of the heat conduction layer (12), and reduce temperature detection errors, and the formula is as follows:

T＝T1+(Q/B)*((A/λ₁)+(C/λ₂))；

wherein T is water temperature; t1 is the average of the temperatures detected by the six temperature sensors (7); Q/B is the ratio of the heat conduction rate to the heat exchange area, and the term is a constant term analyzed by experimental data; a is the wall thickness of the boiler pipeline; c is the wall thickness of the heat conduction layer (12); lambda [ alpha ]₁Is the heat conductivity of the boiler tube; lambda [ alpha ]₂The thermal conductivity of the heat-conducting layer (12); the water temperature is calculated through a formula.

Technical Field

The invention belongs to the field of boiler pipeline water temperature detection, and particularly relates to a water temperature detection device in a boiler pipeline.

Background

The boiler is a special device, belongs to a pressure container, and is an energy conversion device which inputs energy to the boiler and outputs steam, high-temperature water or an organic heat carrier with certain heat energy. Comprises a boiler and a furnace. The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator. There are various types of boilers, for example, a boiler for supplying hot water is called a hot water boiler, and is mainly used for life, and has a small number of applications in industrial production. The boiler for generating steam is called as a steam boiler, often called as a boiler for short, and is widely used for thermal power stations, ships, locomotives and industrial and mining enterprises.

The boiler is widely applied to life and industry, and in the boiler use process, the temperature detection of the pipeline in the boiler is very necessary, the water temperature detection device is arranged at a water inlet and a water outlet and cannot detect the water temperature in the pipeline in the boiler at present, the pipeline in the boiler is narrow, and a sensor is installed in the boiler to detect obviously unreasonably. The invention most closely related to the present invention is currently being searched for as application number: 201711261771.6, respectively; the water temperature in the pipeline can be detected, but the water temperature in the boiler is detected by sampling, a complex mechanism is required, and a data interaction function is not provided; after long-time use, the result temperature measurement result is not accurate enough due to the problems of scale and the like.

In order to solve the defects of the prior art, the invention discloses a water temperature detection device in a boiler pipeline, which solves the problems that the pipeline in the prior art is difficult to detect, the detection device is not durable, the detection device needs to be in contact with water in the boiler to cause heat loss and the like; the temperature-difference power generation device comprises a micro antenna, a heat insulation layer, a semiconductor temperature difference power generation sheet, a low-noise amplifier, a wireless communication chip, a temperature sensor, a power supply storage device, a data storage device, a microprocessor, a positioning chip and a heat conduction layer. The invention mainly utilizes three technologies: firstly, a laser cladding technology is utilized to coat a heat insulation coating on the device, so that external heat can be effectively prevented from invading internal components; secondly, the semiconductor thermoelectric power generation sheet is utilized, the waste heat of the boiler pipeline is effectively utilized to provide power for the device, and the waste heat utilization rate is effectively improved; and thirdly, a positioning technology and a wireless communication technology are utilized to monitor the water temperature of the boiler pipeline in real time, and a micro antenna and a low-noise amplifier are utilized to provide effective guarantee for data transmission of the device, so that a temperature control management system is convenient to establish.

Disclosure of Invention

Technical problem to be solved

In order to solve the defects of the prior art, the invention discloses a water temperature detection device in a boiler pipeline, which solves the problems that the pipeline in the prior art is difficult to detect, the detection device is not durable, the detection device needs to be in contact with water in the boiler to cause heat loss and the like; the temperature-difference power generation device comprises a micro antenna, a heat insulation layer, a semiconductor temperature difference power generation sheet, a low-noise amplifier, a wireless communication chip, a temperature sensor, a power supply storage device, a data storage device, a microprocessor, a positioning chip and a heat conduction layer. The invention mainly utilizes three technologies: firstly, a laser cladding technology is utilized to coat a heat insulation coating on the device, so that external heat can be effectively prevented from invading internal components; secondly, the semiconductor thermoelectric power generation sheet is utilized, the waste heat of the boiler pipeline is effectively utilized to provide power for the device, and the waste heat utilization rate is effectively improved; and thirdly, a positioning technology and a wireless communication technology are utilized to monitor the water temperature of the boiler pipeline in real time, and a micro antenna and a low-noise amplifier are utilized to provide effective guarantee for data transmission of the device, so that a temperature control management system is convenient to establish.

(II) technical scheme

The invention is realized by the following technical scheme: a water temperature detection device in a boiler pipeline comprises an outer side data processing part and an inner side temperature measuring part; the method is characterized in that:

the outside includes: the device comprises a micro antenna, a heat insulation layer, a semiconductor thermoelectric generation sheet, a low-noise amplifier, a wireless communication chip, a power storage device, a data storage device, a microprocessor and a positioning chip;

the inside includes: heat insulation layer, temperature sensor, heat-conducting layer.

Furthermore, the heat insulation layer on the outer side is provided with two openings for mounting the micro antenna and the semiconductor thermoelectric generation sheet; the upper surface of the miniature antenna (1) is provided with a quartz glass sheet for blocking water vapor; the semiconductor temperature difference power generation sheet on the outer side is connected with a power storage device; the miniature antenna on the outer side is connected with the low-noise amplifier and the wireless communication chip to provide data transmission; the positioning chip on the outer side is connected with the low-noise amplifier and used for establishing positioning information; the positioning chip on the outer side is connected to the microprocessor; the microprocessor on the outer side is connected with a data storage device.

Further, the outer surface of the inner side is a heat insulation layer for isolating high temperature; six temperature sensors are arranged on the inner side of the heat insulation layer on the inner side and used for detecting the temperature; the temperature sensor at the inner side is connected with the microprocessor and used for transmitting temperature data; after receiving the temperature data, the microprocessor marks a tag of positioning information on the temperature data, stores the temperature data in the data storage device, and simultaneously transmits the data to the cloud end through the wireless communication chip for storage and real-time updating; the heat conducting layer on the inner side is used for contacting the outside of the boiler pipeline, and the heat conducting layer is made of metal with high heat conductivity coefficient.

Further, the thermal insulation layer is a thermal insulation composite ceramic material.

Furthermore, the heat-insulating composite ceramic material is formed by compounding zirconium dioxide and other metal powder and then performing laser cladding.

Further, the particle size of the zirconium dioxide and the metal powder is 250-350 meshes; the laser cladding process parameters are as follows: the laser power is 2000-2500W, the scanning speed is 2-6mm/s, the protector flow is 500-1000L/h, and the powder feeding speed is 20-120 g/min.

Furthermore, the power supply of the water temperature detection device is from a semiconductor thermoelectric generation sheet, the external temperature is isolated through a heat insulation layer, the internal and external temperature difference is utilized to generate electric energy, and the waste heat of a boiler is utilized to provide power for the device.

Furthermore, the device is nested and installed outside the boiler pipeline, and the temperature measurement precision is improved through the heat conduction layer; six temperature sensor reduce the temperature measurement error to through calculating heat-conducting layer coefficient of heat conduction, compensate the temperature, reduce temperature and detect the error, its formula is as follows:

T＝T1+(Q/B)*((A/λ₁)+(C/λ₂))；

wherein T is water temperature; t1 is the average of the temperatures detected by the six temperature sensors; Q/B is the ratio of the heat conduction rate to the heat exchange area, and the term is a constant term analyzed by experimental data; a is the wall thickness of the boiler pipeline; c is the wall thickness of the heat conduction layer; lambda [ alpha ]₁Is the heat conductivity of the boiler tube; lambda [ alpha ]₂The thermal conductivity of the heat conducting layer; the water temperature is calculated through a formula.

(III) advantageous effects

Compared with the prior art, the invention has the following beneficial effects:

in order to solve the defects of the prior art, the invention discloses a water temperature detection device in a boiler pipeline, which solves the problems that the pipeline in the prior art is difficult to detect, the detection device is not durable, the detection device needs to be in contact with water in the boiler to cause heat loss and the like; the temperature-difference power generation device comprises a micro antenna, a heat insulation layer, a semiconductor temperature difference power generation sheet, a low-noise amplifier, a wireless communication chip, a temperature sensor, a power supply storage device, a data storage device, a microprocessor, a positioning chip and a heat conduction layer. The invention mainly utilizes three technologies: firstly, a laser cladding technology is utilized to coat a heat insulation coating on the device, so that external heat can be effectively prevented from invading internal components; secondly, the semiconductor thermoelectric power generation sheet is utilized, the waste heat of the boiler pipeline is effectively utilized to provide power for the device, and the waste heat utilization rate is effectively improved; and thirdly, a positioning technology and a wireless communication technology are utilized to monitor the water temperature of the boiler pipeline in real time, and a micro antenna and a low-noise amplifier are utilized to provide effective guarantee for data transmission of the device, so that a temperature control management system is convenient to establish.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of an embodiment of the present invention;

in the figure: the device comprises a micro antenna (1), a heat insulation layer (2), a semiconductor thermoelectric generation sheet (3), a low-noise amplifier (4), a wireless communication chip (5), a heat insulation layer (6), a temperature sensor (7), a power storage device (8), a data storage device (9), a microprocessor (10), a positioning chip (11) and a heat conduction layer (12);

Detailed Description

Referring to fig. 1 and 2, a water temperature detecting device in a boiler pipeline includes an outside data processing part and an inside temperature measuring part; the method is characterized in that:

the outside includes: the device comprises a micro antenna, a heat insulation layer, a semiconductor thermoelectric generation sheet, a low-noise amplifier, a wireless communication chip, a power storage device, a data storage device, a microprocessor and a positioning chip;

the inside includes: heat insulation layer, temperature sensor, heat-conducting layer.

The heat insulation layer on the outer side is provided with two openings for mounting the micro antenna and the semiconductor thermoelectric generation sheet; the upper surface of the miniature antenna (1) is provided with a quartz glass sheet for blocking water vapor; the semiconductor temperature difference power generation sheet on the outer side is connected with a power storage device; the miniature antenna on the outer side is connected with the low-noise amplifier and the wireless communication chip to provide data transmission; the positioning chip on the outer side is connected with the low-noise amplifier and used for establishing positioning information; the positioning chip on the outer side is connected to the microprocessor; the microprocessor on the outer side is connected with a data storage device.

Wherein, the outer surface of the inner side is a heat insulating layer for isolating high temperature; six temperature sensors are arranged on the inner side of the heat insulation layer on the inner side and used for detecting the temperature; the temperature sensor at the inner side is connected with the microprocessor and used for transmitting temperature data; after receiving the temperature data, the microprocessor marks a tag of positioning information on the temperature data, stores the temperature data in the data storage device, and simultaneously transmits the data to the cloud end through the wireless communication chip for storage and real-time updating; the heat conducting layer on the inner side is used for contacting the outside of the boiler pipeline, and the heat conducting layer is made of metal with high heat conductivity coefficient.

Wherein the thermal insulation layer is a thermal insulation composite ceramic material.

The heat-insulating composite ceramic material is formed by compounding zirconium dioxide and other metal powder and then performing laser cladding.

Wherein the particle size of the zirconium dioxide and the metal powder is 250-350 meshes; the laser cladding process parameters are as follows: the laser power is 2000-2500W, the scanning speed is 2-6mm/s, the protector flow is 500-1000L/h, and the powder feeding speed is 20-120 g/min.

The water temperature detection device is characterized in that power supply of the water temperature detection device is from a semiconductor thermoelectric generation sheet, the external temperature is isolated through a heat insulation layer, electric energy is generated by utilizing the internal and external temperature difference, and power is provided for the device by utilizing the waste heat of a boiler.

The device is nested outside the boiler pipeline, and the temperature measurement precision is improved through the heat conduction layer; six temperature sensor reduce the temperature measurement error to through calculating heat-conducting layer coefficient of heat conduction, compensate the temperature, reduce temperature and detect the error, its formula is as follows:

T＝T1+(Q/B)*((A/λ₁)+(C/λ₂))；

wherein T is water temperature; t1 is the average of the temperatures detected by the six temperature sensors; Q/B is the ratio of the heat conduction rate to the heat exchange area, and the term is a constant term analyzed by experimental data; a is the wall thickness of the boiler pipeline; c is the wall thickness of the heat conduction layer; lambda [ alpha ]₁Is the heat conductivity of the boiler tube; lambda [ alpha ]₂The thermal conductivity of the heat conducting layer; the water temperature is calculated through a formula.

The working principle is as follows:

as shown in FIG. 1, the invention is directly nested and installed outside the boiler pipeline, and the temperature measurement precision is improved through the heat conduction layer; the water temperature detection device is electrically supplied by a semiconductor thermoelectric generation sheet, the external temperature is isolated by a heat insulation layer, the internal and external temperature difference is utilized to generate electric energy, and the residual heat of a boiler is utilized for installationThe power supply is provided. Six temperature sensor reduce the temperature measurement error to through calculating heat-conducting layer coefficient of heat conduction, compensate the temperature, reduce temperature and detect the error, its formula is as follows: t ═ T1+ (Q/B) ((a/λ)₁)+(C/λ₂))；

Wherein T is water temperature; t1 is the average of the temperatures detected by the six temperature sensors; Q/B is the ratio of the heat conduction rate to the heat exchange area, and the term is a constant term analyzed by experimental data; a is the wall thickness of the boiler pipeline; c is the wall thickness of the heat conduction layer; lambda [ alpha ]₁Is the heat conductivity of the boiler tube; lambda [ alpha ]₂The thermal conductivity of the heat conducting layer; and calculating to obtain the accurate water temperature through a formula. Accurate water temperature is obtained through compensation calculation, the accurate water temperature is connected with a label for marking positioning information on temperature data through a microprocessor and then stored in a data storage device, and meanwhile, data are transmitted to a cloud end through a wireless communication chip to be stored and updated in real time.

The control mode of the invention is controlled by manually starting and closing the switch, the wiring diagram of the power element and the supply of the power source belong to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the wiring arrangement are not explained in detail in the invention.

The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of technicians in the field, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.