Full temperature field measurement system for heat transfer element of rotary air preheater

Abstract

The invention provides a full temperature field measurement system for a heat transfer element of a rotary air preheater, and a heat transfer element temperature measurement module comprises a plurality of temperature measurement assemblies which are respectively arranged on the surface of a heat exchange plate of the heat transfer element. The heat transfer element temperature measuring module is used for measuring full temperature field parameters of the heat transfer elements in the internal heat exchange space of the air preheater in real time, and the air preheater full temperature field processing module is used for processing the heat transfer elements according to the full temperature field parameters, measured and output by the heat transfer element temperature measuring module, of the heat transfer elements in the internal heat exchange space of the air preheater. The air preheater full temperature field processing module processes and draws and constructs two-dimensional and / or three-dimensional full temperature field visual graphic data of the internal heat exchange space of the air preheater, and the data transmission module is used for realizing a data communication function between the heat transfer element temperature measurement module and the air preheater full temperature field processing module. According to the invention, the temperature measurement precision of the heat transfer element of the air preheater can be improved, and the visual graphic display of the full temperature field of the heat transfer element is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of rotary air preheaters, and in particular relates to a full temperature field measurement system for a heat transfer element of a rotary air preheater. Background Art

[0002] A rotary air preheater is a device used to improve energy efficiency. It is commonly found in thermal power plants, boiler systems, industrial furnaces, and other places. It can preheat the air entering the combustion system by recovering the heat in the high-temperature flue gas, thereby reducing fuel consumption and improving combustion efficiency. As thermal power generation and other systems have increasingly stringent production requirements for power generation efficiency, loss control, etc., how to achieve online monitoring, analysis, and diagnosis of air preheater operation and performance has become increasingly important. The real-time temperature change of the heat transfer element in the heat exchange space inside the air preheater is the most direct and important detection data for the air preheater.

[0003] Under the existing technology, the traditional detection method of the heat transfer element of the rotary air preheater is to arrange temperature sensors at the inlet and outlet positions of the flue gas and air of the air preheater. However, since a large number of heat transfer elements are arranged inside the air preheater and a large number of heat transfer elements are in constant motion during the operation of the air preheater, by directly measuring the temperature parameters of the heat transfer elements at the inlet and outlet positions of the air source of the air preheater, on the one hand, due to the certain distance between the temperature sensor and the heat transfer element, only indirect measurement of the heat transfer element can be achieved, and the accuracy of the temperature measurement cannot be guaranteed. On the other hand, the temperature sensor can only detect the temperature of the heat transfer element part close to it, and the temperature change of the heat transfer element part far away from the temperature sensor is not obvious. That is, the conventional heat transfer element temperature monitoring method cannot obtain the specific temperature distribution data of the heat exchange space inside the air preheater. Summary of the invention

[0004] The present invention provides a rotary air preheater heat transfer element full temperature field measurement system to solve the technical problem that conventional rotary air preheaters cannot accurately detect the temperature parameters of heat transfer elements and measure the full temperature field of heat transfer elements under the prior art.

[0005] In order to solve the above problems, the technical solution of the present invention is: a rotary air preheater heat transfer element full temperature field measurement system, comprising: A heat fransfer element temperature measuring module, comprising a plurality of temperature measuring components, which are respectively arranged on the surfaces of heat exchange plates of the heat fransfer elements in the air preheater where the heat fransfer elements are in direct contact with the cold and heat source gases. The heat fransfer element temperature measuring module is used to measure in real time the full temperature field parameters of the heat fransfer elements in the heat exchange space inside the air preheater; an air preheater full temperature field processing module, the air preheater full temperature field processing module is used to process and draw and construct a two-dimensional and / or three-dimensional full temperature field visualization graphic data of the heat exchange space inside the air preheater according to the full temperature field parameters of the heat transfer elements in the heat exchange space inside the air preheater measured and output by the heat transfer element temperature measuring module; A data transmission module is used to realize the data communication function between the heat transfer element temperature measurement module and the air preheater full temperature field processing module.

[0006] Preferably, the heat transfer elements are provided with n*m groups of heat exchange plates of the heat transfer elements respectively from the rotation center of the air preheater along the radial direction of the air preheater. In a single group of the heat transfer elements, at least 8 groups of temperature measuring components are provided. The temperature measuring components are respectively arranged at least at the top of the heat exchange plates of the heat transfer elements in the radial innermost row and the top row of the air preheater, and the bottom of the heat exchange plates of the heat transfer elements in the radial innermost row and the bottom row of the air preheater, and the top and bottom of the heat exchange plates of the heat transfer elements in the radial outermost row and the top row of the air preheater, and the top and bottom of the heat exchange plates of the heat transfer elements in the radial outermost row and the center row of the air preheater, and the top and bottom of the heat exchange plates of the heat transfer elements in the radial outermost row and the bottom row of the air preheater.

[0007] Preferably, the temperature measuring component comprises a patch type thermocouple, and the patch type thermocouple is fixed to the outer surface of the heat exchange plate of the heat transfer element by bolts or high temperature resistant adhesive.

[0008] Preferably, the temperature measuring component further comprises a thermocouple sheath, which is sleeved on the non-contact surface between the patch thermocouple and the heat exchange plate of the heat transfer element and fixed to the outer surface of the heat exchange plate of the heat transfer element by bolts or high temperature resistant adhesive.

[0009] Preferably, the plurality of temperature measuring components are arranged at intervals in the plurality of heat transfer elements along the arrangement direction of the heat transfer elements in the heat exchange space inside the air preheater.

[0010] Preferably, the data transmission module includes a first wireless communication device and a second wireless communication device, the first wireless communication device is electrically connected to the heat transfer element temperature measuring module, the second wireless communication device is electrically connected to the air preheater full temperature field processing module, and the first wireless communication device and the second wireless communication device realize wireless communication connection, and the data transmission module is configured such that the first wireless communication device reads and sends to the second wireless communication device full temperature field parameters of a plurality of heat transfer elements in the heat exchange space inside the air preheater outputted by the heat transfer element temperature measuring module, and the second wireless communication device receives and outputs to the air preheater full temperature field processing module full temperature field parameters of a plurality of heat transfer elements in the heat exchange space inside the air preheater.

[0011] Preferably, the number of the first wireless communication devices arranged is equal to the number of the heat transfer elements arranged with the temperature measuring components, and the first wireless communication devices are respectively fixed on the heat transfer elements at the radially distal end of the air preheater and arranged with the temperature measuring components.

[0012] Preferably, the first wireless communication device and each patch thermocouple in the corresponding temperature measurement component realize wired data transmission through a high temperature resistant cable.

[0013] Preferably, the first wireless communication device and the second wireless communication device are respectively provided with independent power supplies, and the independent power supplies are respectively used to continuously supply power to the first wireless communication device and the second wireless communication device.

[0014] Preferably, the air preheater full temperature field processing module includes an industrial computer and a touch screen. The industrial computer is used to process and calculate full temperature field parameters of a plurality of heat transfer elements in the heat exchange space inside the air preheater measured and output by the heat transfer element temperature measuring module, and draw and construct graphic data of the heat exchange space inside the air preheater. The touch screen is used to display a two-dimensional and / or three-dimensional visualization graphic of the full temperature field of the heat exchange space inside the air preheater.

[0015] Due to the adoption of the above technical solution, the present invention has the following advantages and positive effects compared with the prior art: The present invention provides a rotary air preheater heat transfer element full temperature field measurement system. On the heat transfer element of the heat exchange space inside the air preheater, a number of temperature measurement components are installed according to specific distribution positions. The patch type thermocouple directly measures the temperature of the heat transfer element by temperature conduction measurement. Compared with the prior art of measuring the temperature of the cold and heat source flowing gas, the present invention has higher temperature measurement accuracy for the air preheater heat transfer element and faster temperature change response speed. At the same time, based on the temperature parameters of the air preheater heat transfer element at different positions, a three-dimensional visualized full temperature field diagram of the air preheater internal heat exchange space can be constructed, which is convenient for operators to intuitively and clearly understand the heat exchange operation process of the air preheater internal heat exchange space. Furthermore, the present invention is also provided with an air preheater full temperature field processing module and a data transmission module, which realize the automatic collection of the full temperature field data of the air preheater heat transfer element, remote data transmission, two-dimensional and / or three-dimensional full temperature field visualization graphic display and other automated steps, so as to meet the automatic monitoring function of the air preheater operation status and operation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A structural cross-sectional view of a rotary air preheater heat transfer element full temperature field measurement system provided by the present invention on the air side; Figure 2 A structural cross-sectional view of a rotary air preheater heat transfer element full temperature field measurement system provided by the present invention on the flue gas side; Figure 3 A top view of the structure of a rotary air preheater heat transfer element full temperature field measurement system provided by the present invention; Figure 4 A schematic structural diagram of a heat transfer element provided by the present invention; Figure 5 A schematic diagram of a visualization graph of a two-dimensional full temperature field in an internal heat exchange space of an air preheater provided by the present invention.

[0017] Explanation of the reference numerals: 1: air preheater; 2: heat transfer element; 3: rotation center of air preheater; 4: temperature measuring component; 5: heat transfer element heat exchange plate; 6: surface-mount thermocouple; 7: thermocouple sheath; 8: first wireless communication device; 9: second wireless communication device; 10: high temperature resistant cable; 11: industrial computer; 12: touch screen. DETAILED DESCRIPTION

[0018] The following is a further detailed description of a rotary air preheater heat transfer element full temperature field measurement system proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description and claims.

[0019] See also Figure 1-Figure 5This embodiment provides a rotary air preheater heat transfer element full temperature field measurement system, including a heat transfer element temperature measurement module, an air preheater full temperature field processing module and a data transmission module, for realizing full temperature field data measurement and visualization display functions of the heat transfer element 2 in the heat exchange space inside the air preheater.

[0020] See also Figure 1 to Figure 2 In the rotary air preheater 1, a plurality of heat transfer elements 2 are provided. One side of the heat transfer element 2 is fixed to the rotation center 3 of the air preheater, and the other side extends to the far end along the radius of the air preheater 1 with a fixed gap. During the operation of the air preheater 1, the air preheater 1 drives the heat transfer element 2 to rotate through the rotation center 3. A heat source gas, such as high-temperature flue gas discharged from a boiler, is input to the heat source input end of the air preheater 1. When the heat source gas fully contacts the surface of the heat transfer element 2, heat transfer is achieved to heat the heat transfer element 2. Then, a cold source gas, such as cold air before entering the boiler, is input to the cold source input end of the air preheater 1. When the cold source gas fully contacts the heated surface of the heat transfer element 2, the heat transfer element 2 further transfers its own heat to the cold source air, thereby preheating the cold source air.

[0021] See also Figures 1 to 3 In this embodiment, the heat fransfer element temperature measuring module includes a plurality of temperature measuring components 4. The temperature measuring components 4 have a temperature measuring function. The plurality of temperature measuring components 4 are respectively arranged on the surfaces of heat exchange plates 5 of the heat fransfer elements 2 in the air preheater 1 that are in direct contact with the cold or heat source gas, and are used to directly measure and output real-time variation parameters of the entire temperature field of the heat fransfer element 2 in the heat exchange space inside the air preheater 1.

[0022] The data transmission module is used to realize the data communication function between the heat transfer element temperature measuring module and the air preheater full temperature field processing module, that is, the full temperature field parameters of the heat transfer elements 2 in the heat exchange space inside the air preheater 1 measured and output by the heat transfer element temperature measuring module are remotely transmitted to the air preheater full temperature field processing module.

[0023] The air preheater full temperature field processing module is used to process and draw and construct two-dimensional and / or three-dimensional full temperature field visualization graphic data of the heat exchange space inside the air preheater 1 according to the full temperature field parameters of the heat transfer elements 2 in the heat exchange space inside the air preheater 1 measured and output by the heat transfer element temperature measuring module.

[0024] In summary, this embodiment provides a rotary air preheater heat transfer element full temperature field measurement system. When the air preheater 1 is running, that is, when the heat transfer elements 2 are in motion, the temperature parameters of the heat transfer elements 2 in the heat exchange space of the air preheater 1 can be directly measured, thereby improving the temperature measurement accuracy and the temperature change response speed. Subsequently, the temperature parameters of each point of the heat transfer element 2 are collected to form the full temperature field parameters of the heat transfer elements 2 in the heat exchange space of the air preheater 1, and the visualization function is realized. Through the visualized full temperature field diagram, the temperature distribution of each area in the heat exchange space of the air preheater 1 can be monitored in real time, so as to more accurately adjust the operating parameters such as flue gas flow, air flow and rotor speed, so as to ensure the best heat exchange efficiency of the air preheater 1. At the same time, the temperature abnormal area in the heat exchange space of the air preheater 1 can be accurately identified and found, and the blockage, corrosion or other faults of the heat transfer element 2 can be quickly located, so as to effectively ensure the operating safety of the air preheater 1.

[0025] The specific structure and function of the rotary air preheater heat transfer element full temperature field measurement system provided in this embodiment will be further described in detail below: Preferably, the plurality of heat transfer elements 2 are provided with n*m groups of heat transfer element heat exchange plates 5 respectively from the rotation center of the air preheater 1 along the radial direction of the air preheater 1. In this embodiment, a single group of heat transfer elements 2 is provided with 5 rows of heat transfer element heat exchange plates 5 from the rotation center of the air preheater 1 along the radial direction of the air preheater 1, and 3 rows of heat transfer element heat exchange plates 5 are provided along the axial direction of the air preheater 1, that is, a total of 15 heat transfer element heat exchange plates 5 are provided in the single group of heat transfer elements 2. In a single group of heat transfer elements 2, at least 8 groups of temperature measuring components 4 are provided. The temperature measuring components 4 are respectively arranged at least on the top of the heat exchange plates 5 of the heat transfer elements in the innermost row and the top row of the air preheater 1 in the radial direction, the bottom of the heat exchange plates 5 of the innermost row and the bottom row of the air preheater 1 in the radial direction, the top and bottom of the heat exchange plates 5 of the outermost row and the top row of the air preheater 1 in the radial direction, the top and bottom of the heat exchange plates 5 of the outermost row and the center row of the air preheater 1 in the radial direction, and the top and bottom of the heat exchange plates 5 of the outermost row and the bottom row of the air preheater 1 in the radial direction.

[0026] In this embodiment, during the operation of the air preheater 1, the heat transfer element 2 rotates. Due to the centrifugal force and the difference in the distribution area of ​​the heat transfer element 2, the airflow distribution in the heat exchange space inside the air preheater 1 is that the closer to the air preheater rotation center 3, the slower the airflow velocity and the smaller the heat exchange area, and the farther away from the air preheater rotation center 3, the faster the airflow velocity and the larger the heat exchange area, which results in a smaller temperature gradient and lower heat exchange efficiency in the area close to the air preheater rotation center 3, and a larger temperature gradient and higher heat exchange efficiency in the area far away from the air preheater rotation center 3. Therefore, in this embodiment, the heat exchange plates 5 of the heat transfer elements on the radial outermost side of the air preheater 1 are preferentially used as the temperature monitoring target area, so as to accurately reflect and control the heat exchange efficiency of the air preheater 1, timely discover potential faults, and improve economic practicality.

[0027] Preferably, see Figure 4 In this embodiment, a single temperature measuring component 4 is provided with a patch type thermocouple 6, which is fixed to the outer surface of the heat exchange plate 5 of the heat transfer element by bolts or high temperature resistant adhesive. The measuring end surface of the patch type thermocouple 6 is in direct contact with the heat exchange plate 5 of the heat transfer element. The heat change of the heat exchange plate 5 of the heat transfer element is directly transferred to the thermocouple by heat conduction, so that the heat transfer element temperature measuring module can measure the temperature parameters of the heat transfer element 2 more accurately.

[0028] Furthermore, in this embodiment, a thermocouple sheath 7 is further provided in the single-group temperature measuring component 4. The thermocouple sheath 7 is designed to fit the shape of the patch thermocouple 6 and can be sleeved on the non-contact surface between the patch thermocouple 6 and the heat exchange plate 5 of the heat transfer element. The thermocouple sheath 7 is fixed to the outer surface of the heat exchange plate 5 of the heat transfer element by bolts or high-temperature resistant adhesive. The thermocouple sheath 7 can be further made of ceramic material. The thermocouple sheath 7 can effectively prevent the high-speed flue gas containing dust particles flowing in the heat transfer element 2 from wearing the patch thermocouple 6, thereby increasing the service life of the temperature measuring module of the heat transfer element.

[0029] Preferably, see Figure 3 A plurality of temperature measuring components 4 are arranged in intervals in the plurality of heat fransfer elements 2 along the arrangement direction of the heat fransfer elements 2 in the heat exchange space of the air preheater 1. In this embodiment, there are 48 groups of heat fransfer elements 2 in the air preheater 1, and only 24 groups of heat fransfer elements 2 arranged at intervals are selected. Corresponding temperature measuring components 4 are arranged in the heat fransfer elements 2 arranged at intervals. Without affecting the temperature measurement accuracy of the heat fransfer elements 2 in the air preheater 1, the hardware cost of the temperature measuring module of the heat fransfer element is reduced.

[0030] Preferably, in this embodiment, the data transmission module includes a plurality of first wireless communication devices 8 and a plurality of second wireless communication devices 9. The plurality of first wireless communication devices 8 are electrically connected to the heat transfer element temperature measuring module respectively. The first wireless communication device 8 has the function of reading the thermocouple temperature and wireless remote transmission. The second wireless communication device 9 is electrically connected to the air preheater full temperature field processing module. The second wireless communication device 9 also has the function of wireless remote transmission. The plurality of first wireless communication devices 8 and the second wireless communication device 9 are paired with each other to establish a wireless communication connection. Therefore, in this embodiment, the data transmission module is configured so that the first wireless communication device 8 can read and send the full temperature field parameters of the plurality of heat transfer elements 2 in the heat exchange space inside the air preheater 1 output by the heat transfer element temperature measuring module to the second wireless communication device 9. Then, the second wireless communication device 9 can receive and send the full temperature field parameters of the plurality of heat transfer elements 2 in the heat exchange space inside the air preheater 1 to the air preheater full temperature field processing module, thereby realizing the data remote communication function between the heat transfer element temperature measuring module and the air preheater full temperature field processing module. Furthermore, the data communication function is realized through the data transmission module, and there is no need to open a hole on the outer shell of the air preheater 1 , thereby reducing the impact on the structural strength of the air preheater 1 .

[0031] Furthermore, the number of the first wireless communication devices 8 is equal to the number of the heat transfer elements 2 with the temperature measuring components 4, that is, in this embodiment, there are 24 groups of the first wireless communication devices 8. The first wireless communication devices 8 are respectively fixed at the cold source gas input port at the radially distal bottom of the air preheater 1 and on the heat transfer element 2 with the temperature measuring component 4. In this embodiment, the first wireless communication device 8 is specifically arranged in the rotor angle steel at the distal bottom of the heat transfer element 2. Under the premise of not affecting the operation of the air preheater 1, the first wireless communication device 8 is arranged in a relatively low temperature area to increase the service life of the first wireless communication device 8.

[0032] Furthermore, in a single group of heat transfer elements 2, the first wireless communication device 8 and each SMD thermocouple 6 in its corresponding temperature measuring component 4 realize wired data transmission through the high temperature resistant cable 10, that is, the temperature data measured by each SMD thermocouple 6 can be directly transmitted to the first wireless communication device 8. In this embodiment, the high temperature resistant cable 10 is tightly fixed to the surface of the heat transfer element 2 by a cable clamp to prevent the high temperature resistant cable 10 from loosening and affecting the gas flow cross section in the heat exchange space inside the air preheater 1.

[0033] Preferably, in this embodiment, the first wireless communication device 8 and the second wireless communication device 9 are provided with independent power supplies respectively, and the independent power supplies are used to continuously supply power to the first wireless communication device 8 and the second wireless communication device 9, so that during the operation of the air preheater 1, the heat transfer element temperature measuring module can continuously output the full temperature field data of the heat transfer element 2 to the air preheater full temperature field processing module, so as to meet the real-time monitoring function of the temperature parameters of the heat transfer element 2 of the air preheater 1. In this embodiment, the time interval for the heat transfer element temperature measuring module to transmit the full temperature field parameters to the air preheater full temperature field processing module through the data transmission module can be freely set in the air preheater full temperature field processing module, such as being set to upload once every hour.

[0034] Preferably, in this embodiment, the air preheater full temperature field processing module includes an equipment operation platform integrating an industrial computer 11 and a touch screen 12. The industrial computer 11 is used to process and calculate the full temperature field parameters of the heat transfer elements 2 in the heat exchange space inside the air preheater 1 measured and output by the heat transfer element temperature measurement module, and to draw and construct graphic data of the heat exchange space inside the air preheater 1. Figure 5 The touch screen 12, as a human-machine interaction interface, can be used to display a two-dimensional and / or three-dimensional visualization of the full temperature field of the heat exchange space inside the air preheater 1, and realize the control of the industrial computer 11. It is worth noting that the three-dimensional visualization of the full temperature field provided in this embodiment can directly estimate and determine the three-dimensional coordinates of several temperature measuring components 4 through the actual setting positions of the temperature measuring components 4 with different numbers, and can also realize the accurate positioning of the real-time three-dimensional coordinates of several temperature measuring components 4 by respectively setting positioning devices in the several temperature measuring components 4.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. A rotary air preheater heat transfer element full temperature field measurement system, characterized in that: include: A heat fransfer element temperature measuring module, comprising a plurality of temperature measuring components, which are respectively arranged on the surfaces of heat exchange plates of the heat fransfer elements in the air preheater where the heat fransfer elements are in direct contact with the cold and heat source gases. The heat fransfer element temperature measuring module is used to measure in real time the full temperature field parameters of the heat fransfer elements in the heat exchange space inside the air preheater; an air preheater full temperature field processing module, the air preheater full temperature field processing module is used to process and draw and construct a two-dimensional and / or three-dimensional full temperature field visualization graphic data of the heat exchange space inside the air preheater according to the full temperature field parameters of the heat transfer elements in the heat exchange space inside the air preheater measured and output by the heat transfer element temperature measuring module; A data transmission module is used to realize the data communication function between the heat transfer element temperature measurement module and the air preheater full temperature field processing module.

2. The rotary air preheater heat transfer element full temperature field measurement system according to claim 1, characterized in that: A plurality of heat transfer elements are provided with n*m groups of heat exchange plates of the heat transfer elements along the radial direction of the air preheater from the rotation center of the air preheater. In a single group of the heat transfer elements, at least 8 groups of temperature measuring components are provided. The temperature measuring components are arranged at least on the top of the heat exchange plates of the heat transfer elements in the radial innermost row and the top row of the air preheater, the bottom of the heat exchange plates of the heat transfer elements in the radial innermost row and the bottom row of the air preheater, the top and bottom of the heat exchange plates of the heat transfer elements in the radial outermost row and the top row of the air preheater, the top and bottom of the heat exchange plates of the heat transfer elements in the radial outermost row and the center row of the air preheater, and the top and bottom of the heat exchange plates of the heat transfer elements in the radial outermost row and the bottom row of the air preheater.

3. The rotary air preheater heat transfer element full temperature field measurement system according to claim 2, characterized in that: The temperature measuring component comprises a patch type thermocouple, and the patch type thermocouple is fixed to the outer surface of the heat exchange plate of the heat transfer element by bolts or high temperature resistant adhesive.

4. The rotary air preheater heat transfer element full temperature field measurement system as claimed in claim 3, characterized in that: The temperature measuring component also includes a thermocouple sheath, which is sleeved on the non-contact surface between the patch thermocouple and the heat exchange plate of the heat transfer element, and is fixed to the outer surface of the heat exchange plate of the heat transfer element by bolts or high-temperature resistant adhesive.

5. The rotary air preheater heat transfer element full temperature field measurement system according to claim 1, characterized in that: The plurality of temperature measuring components are arranged at intervals in the plurality of heat transfer elements along the arrangement direction of the heat transfer elements in the heat exchange space inside the air preheater.

6. The rotary air preheater heat transfer element full temperature field measurement system according to claim 1, characterized in that: The data transmission module includes a first wireless communication device and a second wireless communication device. The first wireless communication device is electrically connected to the heat transfer element temperature measuring module, and the second wireless communication device is electrically connected to the air preheater full temperature field processing module. The first wireless communication device and the second wireless communication device realize wireless communication connection. The data transmission module is configured such that the first wireless communication device reads and sends to the second wireless communication device full temperature field parameters of a plurality of heat transfer elements in the heat exchange space inside the air preheater outputted by the heat transfer element temperature measuring module, and the second wireless communication device receives and outputs to the air preheater full temperature field processing module full temperature field parameters of a plurality of heat transfer elements in the heat exchange space inside the air preheater.

7. The rotary air preheater heat transfer element full temperature field measurement system according to claim 6, characterized in that: The number of the first wireless communication devices arranged is equal to the number of the heat transfer elements arranged with the temperature measuring components. The first wireless communication devices are respectively fixedly arranged on the heat transfer elements at the radially far end of the air preheater and where the temperature measuring components are arranged.

8. The rotary air preheater heat transfer element full temperature field measurement system according to claim 7, characterized in that: The first wireless communication device and each patch thermocouple in the corresponding temperature measurement component realize wired data transmission through a high temperature resistant cable.

9. The rotary air preheater heat transfer element full temperature field measurement system according to claim 6, characterized in that: The first wireless communication device and the second wireless communication device are respectively provided with independent power supplies, and the independent power supplies are respectively used to continuously supply power to the first wireless communication device and the second wireless communication device.

10. The rotary air preheater heat transfer element full temperature field measurement system according to claim 1, characterized in that: The air preheater full temperature field processing module includes an industrial computer and a touch screen. The industrial computer is used to process and calculate the full temperature field parameters of the heat transfer elements in the heat exchange space inside the air preheater measured and output by the heat transfer element temperature measuring module, and draw and construct graphic data of the heat exchange space inside the air preheater. The touch screen is used to display a two-dimensional and / or three-dimensional visualization graphic of the full temperature field of the heat exchange space inside the air preheater.

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