KR101775611B1 - Wireless temperature sensor module - Google Patents

Abstract

The present invention relates to a wireless temperature sensor module and, more specifically, relates to a wireless temperature sensor module attached to a boiler capable of easily monitoring temperature and heat flux of a boiler tube, quickly monitoring a degree of corrosion of a tube, and improve stability and an expected service life of the sensor provided with a self-power supply means using a thermal element. Moreover, the wireless temperature sensor module is provided with an external case and an inner case, adjusting a distance between a thermal element and a boiler tube in such a manner where the inner case slides; thereby maintaining a temperature difference of both surfaces of the thermal element.

Description

A wireless temperature sensor module

The present invention relates to a wireless temperature sensor module, and more particularly, to a wireless temperature sensor module, which can be attached to a boiler to easily monitor temperature and heat flow rate of a boiler tube, quickly monitor the degree of corrosion of the tube, The present invention relates to a wireless temperature sensor module having a feeding means and capable of improving the stability and life expectancy of a sensor.

Also, the wireless temperature sensor module includes an outer case and an inner case, and is capable of maintaining a temperature difference between both surfaces of the thermoelectric device by adjusting the distance between the thermoelectric device and the boiler tube by sliding the inner case.

Information on the temperature and heat flux of the boiler is crucial in establishing an efficient boiler operation plan. In addition, information on the degree of corrosion of the tube is very helpful for stable operation of the boiler.

Currently, a monitoring system using a foreign wired network is installed and operated at various domestic power plants such as Samcheonpo and Youngheung,

Due to the nature of foreign products, the construction period is long, and facility maintenance and maintenance are costly and time consuming.

In addition, temperature and corrosion monitoring sensors are mounted on the wall of the boiler in a non-piping manner, and a number of power and data cables are installed (using a wired network) to measure the temperature and corrosion, Is exposed to vibration, dust, and high temperature heat, there is a great problem in maintenance after installation.

Therefore, it is possible to reduce the cost and time required for introducing and maintaining / upgrading / expanding the initial system in domestic power generation boilers and industrial boilers. Also, it is possible to provide a high reliability and stable temperature and corrosion monitoring The demand is increasing.

On the other hand, in the domestic registered patent No. 10-0707780 ("Corrosion Prevention System of HRSG ", hereinafter referred to as Prior Art 1), the arrangement recovery boiler used in the combined- Discloses an erosion equipment system that can prevent corrosion occurring on the outer surface of a finned tube.

However, according to the prior art document 1, it is possible to reduce the initial introduction cost of the temperature and corrosion monitoring system to be solved in the present invention, reduce the cost and time required for maintenance / repair / expansion, It is impossible to identify the monitoring system.

Korean Registered Patent No. 10-0707780 (Registered on April 9, 2007.)

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a method and apparatus for monitoring a temperature and a heat flow rate of a boiler tube, The present invention also provides a wireless temperature sensor module having self-power supply means using a thermoelectric element to improve the stability and life expectancy of the sensor.

Also, the wireless temperature sensor module includes an outer case and an inner case, and is capable of maintaining a temperature difference between both surfaces of the thermoelectric device by adjusting the distance between the thermoelectric device and the boiler tube by sliding the inner case.

A wireless temperature sensor module according to an embodiment of the present invention includes a heat source unit for generating heat; A temperature sensor unit including at least one temperature sensor which is in contact with the heat source unit and senses a temperature of the heat source unit; A heat absorbing part spaced apart from the heat source part by a predetermined distance; A cooling part which is in contact with an end of the heat absorbing part and arranged in a direction opposite to the heat source part; A case part surrounding the heat absorbing part and the cooling part; And a wireless communication unit disposed outside the case and transmitting sensing information sensed by the temperature sensor unit to the outside, wherein the interval between the heat absorption unit and the heat source unit is selectively adjustable.

The wireless temperature sensor module may further include a corrosion sensor part including at least one corrosion sensor for measuring a resistance of the wireless sensor module in contact with the heat source part.

The case may include an outer case having a rectangular or polygonal column with open top and bottom; And an inner case which is in close contact with the inner surface of the outer case and slides in the vertical direction, and the heat absorbing portion is attached to the lower surface.

The heat absorbing portion may include a heat absorbing plate formed on a lower surface of the inner case and made of a material having a low specific heat; And a thermoelectric element provided on an upper surface of the heat absorbing plate.

The wireless communication unit may be electrically connected to the thermoelectric element.

The endothermic plate may be formed in a flat or trumpet shape.

In addition, the outer case and the inner case are characterized in that the outer surface is provided with a heat insulating member.

In the wireless temperature sensor module according to the present invention, the temperature sensor and the corrosion sensor are directly attached (installed) to the tube of the boiler, so that it is easy to monitor the temperature and the heat flow rate of the boiler tube, There is an effect that can be monitored.

Accordingly, it is possible to efficiently manage the boiler by relatively accurately predicting the attachment positions of the clinker and the ash.

Further, since the heat absorbing portion including the endothermic plate is provided at the case end facing the boiler tube, the heat can be concentrated, and the heat of the boiler can be utilized quickly and effectively.

In addition, a thermoelectric element is attached to the endothermic plate, and a self-powered means is provided to the endothermic plate, thereby eliminating the need for a separate external power source, thereby improving the stability and life expectancy of the sensor.

In addition, the wireless temperature sensor module has an outer case and an inner case, so that the inner case is slid, thereby controlling the distance between the thermoelectric device and the boiler tube, thereby maintaining the temperature difference between both surfaces of the thermoelectric device.

In addition, since a wireless network can be used with a separate wireless communication unit, it is easy to install (attach) a plurality of wireless sensors on the surface of a boiler tube, and the A / S .

1 is a perspective view of a module according to an embodiment of the present invention;
2 is an exploded perspective view of a module according to one embodiment of the present invention;
3 is a cross-sectional view of a module according to one embodiment of the present invention.

Hereinafter, a wireless temperature sensor module according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The following drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms. In addition, like reference numerals designate like elements throughout the specification.

In this case, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the following description and the accompanying drawings, A description of known functions and configurations that may unnecessarily obscure the description of the present invention will be omitted.

FIG. 1 is a perspective view of a module 1000 according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of a module 1000 according to an embodiment of the present invention. Sectional view of the module 1000.

1 to 3, a heat source unit 100 in which heat is generated; A temperature sensor unit 200 including at least one temperature sensor 210 contacting the heat source unit 100 and sensing the temperature of the heat source unit 100; A heat absorbing part 300 spaced apart from the heat source part 100 by a predetermined distance; A cooling unit 400 which is in contact with an end of the heat absorbing unit 300 and is disposed in a direction opposite to the heat source unit 100; A case part 500 surrounding the heat absorbing part 300 and the cooling part 400; And a wireless communication unit 600 disposed outside the case unit 500 and transmitting sensing information sensed by the temperature sensor unit 200 to the outside. The heat absorbing unit 300 and the heat source unit 100 May be selectively adjustable.

The wireless temperature sensor module 1000 may further include a corrosion sensor unit 700 including at least one corrosion sensor 710 contacting the heat source unit 100 and measuring a resistance.

Although the heat source unit 100 is limited to the boiler tube 100, it is only an embodiment of the present invention.

The temperature sensor unit 200 may include at least one temperature sensor 210 for sensing the temperature of the installed boiler tube 100. The temperature sensor unit 200 may include at least one temperature sensor 210 for sensing the temperature of the boiler tube 100, And transmit it to the outside. In an external system (analysis / monitoring system) connected to the wireless temperature sensor module 1000 of the present invention, the heat flux can be easily determined using the system.

The corrosion sensor unit 700 may include at least one corrosion sensor 710 for measuring a resistance between two electrodes provided beforehand. The electric resistance may be measured through a potential difference, To the external system (analysis / monitoring system) connected to the module 1000, the corrosion information of the tube and the residual thickness can be determined.

The heat absorbing part 300 includes a heat absorbing plate 310 formed on the lower surface of the inner case 520 and made of a material having a low specific heat. And a thermoelectric element 320 provided on the upper surface of the heat absorbing plate 310. [

The heat absorbing plate 310 may be formed in a flat or trumpet shape.

The material of the heat absorbing plate 310 may be copper, but this is only an embodiment of the present invention.

In addition, the heat absorbing plate 310 may be bolted to the lower surface of the inner case 520.

In addition, the heat absorbing plate 310 may be spaced apart from the heat source unit 100 by a predetermined distance to receive heat.

The thermoelectric device 320 may supply power to the temperature sensor unit 200 and the corrosion sensor unit 700 connected to the wireless communication unit as the electric power is supplied to the wireless communication unit.

In other words, the wireless temperature sensor module 1000 of the present invention does not receive external power for controlling the operation of the temperature sensor unit 200 and the corrosion sensor unit 700, The heat absorbing portion 300 can be supplied with power by itself using the seebeck effect of the thermoelectric element 320.

The cooling unit 400 is integrally coupled to a surface opposite to the heat absorbing plate 310 with respect to the thermoelectric element 320 for the purpose of producing a whitening effect of the thermoelectric element 320, have.

In detail, the thermoelectric element 320 may be a surface to be heated on one side and a surface to be cooled on the other side, and the cooling part 400 may be provided on the other side of the heat absorbing plate 310.

At this time, when the temperature difference (T) between one surface of the thermoelectric element 320 and the other surface is about 100 to 130 ° C, about 1.5 W of electric power to be obtained through the module 1000 can be generated .

Therefore, it is necessary to maintain a temperature difference (?? T) between one surface and the other surface of the thermoelectric element 320 in a boiler having different conditions. To this end, the inner case 520 selectively maintains the temperature difference (T) between the one surface and the other surface of the thermoelectric element 320 at an appropriate temperature by selectively adjusting the gap with the heat source unit 100 .

The case 500 includes an outer case 510 having a rectangular or polygonal column with open upper and lower surfaces; And an inner case 520 which is in close contact with the inner surface of the outer case 510 and slides in the vertical direction, and the heat absorbing portion 300 is attached to the lower surface.

The outer case 510 and the inner case 520 may have a heat insulating member (not shown) on the outer surface thereof.

The heat insulating member may be provided to prevent heat from being transmitted from the heat source unit 100.

At this time, the outer case 510 and the inner case 520 may be coated with a heat insulating member, or the outer case 510 and the inner case 520 may be formed of a heat insulating member.

The outer case 510 and the inner case 520 may be provided with LM guides on their surfaces contacting each other. The outer case 510 may be fixed to the boiler by bolts, It can be automatically fed in the vertical direction.

At this time, the LM guide may be electrically connected to the wireless communication unit 600, and a detailed description and a description thereof may be omitted.

The upper surface of the heat absorbing plate 310 on which the thermoelectric elements 320 are attached is formed on the lower surface of the inner case 520 so as to allow the thermoelectric elements 320 to be inserted therein, Can be brought into contact with the lower surface of the case 520 and bolted thereto.

The wireless communication unit 600 may be electrically connected to the thermoelectric element 320.

The wireless temperature sensor module 1000 of the present invention can overcome the problem of providing a large number of cables for a conventional wired network through the wireless communication unit 600, have.

The wireless communication unit 600 can transmit sensing information to an external WAP (Wireless Access Point), and the wireless communication unit 600 can transmit the sensing information to the outside connected through a wireless network without data loss .

The wireless communication unit 600 may be a wireless LAN (WLAN), a wireless fidelity (Wi-Fi), a wireless broadband Internet, a World Interoperability for Microwave Access, a High Speed Downlink Packet Access (HSDPA) , Zigbee, Bluetooth, Ultra-wideband, IrDA, Ultra Wild Band, Shared Wireless Access Protocol (SWAP), Long Term Evolution (LTE) Radio Frequency IDentification) may be used, which is merely an embodiment of the present invention.

The wireless temperature sensor module 1000 of the present invention may be configured such that the temperature sensor 210 and the corrosion sensor 710 are attached directly to the tube of the boiler so that the temperature of the boiler tube 100 and the heat flow rate And the degree of corrosion of the tube can be monitored quickly.

Accordingly, it is possible to efficiently manage the boiler by relatively accurately predicting the attachment positions of the clinker and the ash.

In addition, since the heat absorbing part 300 including the heat absorbing plate 310 is provided at the end of the case facing the boiler tube 100, the heat can be concentrated and the heat of the boiler can be utilized quickly and effectively.

In addition, since the thermoelectric element 320 is attached to the heat absorbing plate 310 to provide a self-powered means, no additional external power source is required, which improves the stability and life expectancy of the sensor.

In addition, it is possible to use a wireless network equipped with a separate wireless communication unit 600, and it is easy to install (attach) a plurality of wireless sensors on the surface of the boiler tube 100. Further, There is an advantage that A / S is easy because of wirelessization.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Therefore, it is to be understood that the subject matter of the present invention is not limited to the described embodiments, and all of the equivalents or equivalents of the claims are intended to fall within the scope of the present invention will be.

100: heat source unit 200: temperature sensor unit
300: heat absorbing part 400: cooling part
500: case part 600: wireless communication part
700: corrosion sensor part 210: temperature sensor
310: heat absorbing plate 320: thermoelectric element
510: outer case 520: inner case
710: Corrosion Sensor 10: LM Guide
1000: Wireless Temperature Sensor Module

Claims (7)

A heat source part generating heat;
A temperature sensor unit including at least one temperature sensor which is in contact with the heat source unit and senses a temperature of the heat source unit;
A heat absorbing part spaced apart from the heat source part by a predetermined distance;
A cooling part which is in contact with an end of the heat absorbing part and arranged in a direction opposite to the heat source part;
A case part surrounding the heat absorbing part and the cooling part; And
And a wireless communication unit disposed outside the case and transmitting sensing information sensed by the temperature sensor unit to the outside,
Wherein a gap between the heat absorbing portion and the heat source portion is selectively adjustable,
And at least one corrosion sensor for measuring a resistance in contact with the heat source portion and for transmitting an electric resistance measured through a potential difference of the corrosion sensor to an external system, Temperature sensor module.
delete 2. The apparatus according to claim 1,
An outer case having a rectangular or polygonal column with open top and bottom surfaces; And
And an inner case that is in close contact with an inner surface of the outer case and slides in a vertical direction, and the heat absorbing portion is attached to a lower surface of the inner case.
4. The heat exchanger according to claim 3, wherein the heat absorbing portion
An endothermic plate provided on a bottom surface of the inner case and formed of a material having a low specific heat; And
And a thermoelectric element provided on an upper surface of the heat absorbing plate.
The wireless communication system according to claim 4,
Wherein the thermoelectric module is electrically connected to the thermoelectric module.
The heat sink according to claim 4, wherein the heat absorbing plate
Wherein the sensor module is provided in a flat or trumpet shape.
[5] The apparatus of claim 3, wherein the outer case and the inner case
And the outer surface is provided as a heat insulating member.

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