A boiler heating surface wall temperature detection device and detection method

CN115717703BActive Publication Date: 2026-06-26SHANGHAI SHIDONGKOU NO 2 POWER PLANT HUANENG INTERNATIONAL POWER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI SHIDONGKOU NO 2 POWER PLANT HUANENG INTERNATIONAL POWER CO LTD
Filing Date
2022-10-26
Publication Date
2026-06-26

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Abstract

The application discloses a kind of boiler heating surface wall temperature detection device and detection method, including fixed component, including boiler, heating surface, support, thermocouple, cladding metal, data transmission piece, display piece and teletransmission piece, the heating surface is located in the boiler, the support is set to the side of the boiler.This application has beneficial effects: by setting fixed component for temperature monitoring to heating surface, by setting clamping assembly for thermocouple is clamped, and a force to heating surface is applied to thermocouple, so that thermocouple does not occur contact bad phenomenon, solve the thermocouple and the poor contact of boiler heating surface, lead to the temperature data obtained is low, so that worker cannot adjust the temperature of boiler in time, prone to boiler explosion and other safety accidents.
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Description

Technical Field

[0001] This invention relates to the field of boiler technology, and in particular to a boiler heating surface wall temperature detection device and detection method. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler is the chemical energy in the fuel, and the boiler outputs steam with a certain amount of thermal energy. In practice, it can be found that due to various flaws and human errors in the design, manufacturing, installation, use, and maintenance processes, coupled with the neglect or weakening of automatic online monitoring and early warning management in boiler production and operation by boiler manufacturers and end users, boiler-related safety accidents are common, especially those boilers built and put into operation in the early stages, which have gradually entered a period of high incidence of safety accidents. Existing boiler temperature monitoring generally uses thermocouples for temperature measurement, and the thermocouples are basically fixed by fused metal. However, after long-term use, the fused metal will fall off, resulting in poor contact between the thermocouple and the boiler heating surface, leading to lower temperature data. This prevents workers from adjusting the boiler temperature in time and easily causes safety accidents such as boiler explosions. To address these problems, we propose a boiler heating surface wall temperature detection device and detection method. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems existing in the above and / or existing boiler heating surface wall temperature detection devices and methods, the present invention is proposed.

[0005] Therefore, the problem that this invention aims to solve is that poor contact between the thermocouple and the boiler's heating surface leads to low temperature measurement data, which prevents workers from adjusting the boiler temperature in a timely manner and easily causes safety accidents such as boiler explosions.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a boiler heating surface wall temperature detection device, comprising a fixed assembly including a boiler, a heating surface, a support member, a thermocouple, fused metal, a data transmission member, a display member, and a remote transmission member; the heating surface is located inside the boiler, the support member is disposed on one side of the boiler, the thermocouple is located on one side of the heating surface, the fused metal is disposed on the surface of the thermocouple, the data transmission member is disposed at the end of the thermocouple, the display member is located on one side of the boiler, and the remote transmission member is disposed on one side of the display member; and

[0007] A clamping assembly, disposed on one side of the heated surface, includes a fixing member, a sliding member, a clamping member, and a limiting member. The fixing member is disposed on one side of the heated surface, the sliding member is located inside the fixing member, the clamping member is disposed inside the sliding member, and the limiting member is located on one side of the sliding member.

[0008] In a preferred embodiment of the boiler heating surface wall temperature detection device of the present invention, the support member includes a stiffening plate and a fixing seat, the stiffening plate is disposed on one side of the boiler, and the fixing seat is located on one side of the stiffening plate.

[0009] In a preferred embodiment of the boiler heating surface wall temperature detection device of the present invention, the data transmission device includes a transmission line and a bus, the transmission line is disposed at the end of the thermocouple, and the bus is located on one side of the transmission line.

[0010] In a preferred embodiment of the boiler heating surface wall temperature detection device of the present invention, the display component includes a support frame, a digital display device, and a data cable. The support frame is disposed on one side of the boiler, the digital display device is located at the end of the support frame, and the data cable is disposed on one side of the digital display device.

[0011] In a preferred embodiment of the boiler heating surface wall temperature detection device of the present invention, the remote transmission component includes a fixed frame and a remote transmission device, the fixed frame is disposed on one side of the support frame, and the remote transmission device is located on the top of the fixed frame.

[0012] In a preferred embodiment of the boiler heating surface wall temperature detection device of the present invention, the fixing component includes a fixing sleeve, a first spring and a limiting post. The fixing sleeve is disposed on one side of the heating surface, the end of the first spring is disposed on the inner wall of the fixing sleeve, and the limiting post is located on the bottom inner wall of the fixing sleeve.

[0013] In a preferred embodiment of the boiler heating surface wall temperature detection device of the present invention, the sliding member includes a sliding column, a support shell, a support shaft, and a handle. The sliding column is disposed within the fixed sleeve, the support shell is located at the end of the sliding column, the support shaft is disposed within the support shell, and the handle is located on one side of the support shell.

[0014] In a preferred embodiment of the boiler heating surface wall temperature detection device of the present invention, the clamping member includes a fixed clamp, a movable clamp, a second spring, and a clamping piece. The fixed clamp is disposed inside the support shell, the movable clamp is disposed on the surface of the support shaft, one end of the second spring is disposed inside the movable clamp, and the clamping piece is located at the other end of the second spring.

[0015] In a preferred embodiment of the boiler heating surface wall temperature detection device of the present invention, the limiting member includes a threaded post, a limiting pin, and a third spring. The threaded post is located inside the support shell, the limiting pin is disposed on one side of the threaded post, and the end of the third spring is disposed on the inner wall of the limiting pin.

[0016] As a preferred embodiment of the boiler heating surface wall temperature detection method of the present invention, the thermocouple is first placed in the clip and the end of the thermocouple is made to fit against the heating surface.

[0017] Next, the thermocouple is fixed to one side of the heated surface using the fused metal.

[0018] Next, connect the transmission line to the thermocouple, and connect the data line to the digital display device and the remote transmission device.

[0019] Then, the temperature measurement data is transmitted to the computer via a remote transmission device, enabling the computer to monitor and analyze the boiler wall temperature data and store the monitoring data.

[0020] Finally, the digital display device visualizes the obtained temperature measurement data.

[0021] The beneficial effects of this invention are as follows: by setting a fixing component for monitoring the temperature of the heated surface, and by setting a clamping component for clamping the thermocouple and applying a force to the heated surface, the thermocouple will not have poor contact. This solves the problem that poor contact between the thermocouple and the boiler heated surface leads to low temperature data, which prevents workers from adjusting the boiler temperature in time and easily causes safety accidents such as boiler explosions. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a partial cross-sectional view of the boiler heating surface wall temperature detection device and detection method.

[0024] Figure 2 Device and method for detecting boiler heating surface wall temperature Figure 1 Enlarged view of the local structure at point A in the middle.

[0025] Figure 3 This is a diagram showing the transmission line and bus connection structure of the boiler heating surface wall temperature detection device and detection method.

[0026] Figure 4This is a cross-sectional view of the limiting pin structure of the boiler heating surface wall temperature detection device and detection method.

[0027] Figure 5 This is a structural diagram of the support shell and support shaft connection for a boiler heating surface wall temperature detection device and detection method.

[0028] Figure 6 This is a structural diagram showing the connection between the fixing sleeve, the first spring, and the limiting post in a boiler heating surface wall temperature detection device and detection method. Detailed Implementation

[0029] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0032] Example 1

[0033] Reference Figures 1-6 This is the first embodiment of the present invention. This embodiment provides a boiler heating surface wall temperature detection device and detection method. The boiler heating surface wall temperature detection device and detection method includes a fixed assembly 100, including a boiler 101, a heating surface 102, a support member 103, a thermocouple 104, a fused metal 105, a data transmission member 106, a display member 107, and a remote transmission member 108. The heating surface 102 is located inside the boiler 101. The support member 103 is disposed on one side of the boiler 101. The thermocouple 104 is located on one side of the heating surface 102. The fused metal 105 is disposed on the surface of the thermocouple 104. The data transmission member 106 is disposed at the end of the thermocouple 104. The display member 107 is located on one side of the boiler 101. The remote transmission member 108 is disposed on one side of the display member 107.

[0034] Boiler 101 is used to fix and support the heating surface 102, which is the surface inside the boiler where the temperature to be measured is required. Support member 103 is used to fix and support boiler 101. Thermocouple 104 is used to measure the temperature of the surface of heating surface 102. Fused metal 105 is used to fix thermocouple 104 to the surface of heating surface 102. Data transmission member 106 is used to transmit the data measured by thermocouple 104 to display member 107 and remote transmission member 108. Display member 107 is used to display temperature data externally. Remote transmission member 108 is used to transmit temperature data to computer and transmit the information fed back by computer to display member 107 so that display member 107 can display the real-time temperature status.

[0035] The clamping assembly 200 is disposed on one side of the heated surface 102 and includes a fixing member 201, a sliding member 202, a clamping member 203 and a limiting member 204. The fixing member 201 is disposed on one side of the heated surface 102, the sliding member 202 is located inside the fixing member 201, the clamping member 203 is disposed inside the sliding member 202, and the limiting member 204 is located on one side of the sliding member 202.

[0036] The fixing member 201 is used to limit the sliding member 202, the sliding member 202 is used to fix the clamping member 203, so that the clamping member 203 can clamp and fix the thermocouple 104, and the limiting member 204 is used to drive and fix the clamping member 203.

[0037] Specifically, the support member 103 includes a stiffening plate 103a and a fixing seat 103b. The stiffening plate 103a is located on one side of the boiler 101, and the fixing seat 103b is located on the same side as the stiffening plate 103a.

[0038] There are two stiffening plates 103a, both of which are fixed to one side of the boiler 101 for fixed support of the boiler 101. The fixing seat 103b is fixed to the bottom of the stiffening plate 103a.

[0039] Specifically, the data transmission device 106 includes a transmission line 106a and a bus 106b. The transmission line 106a is disposed at the end of the thermocouple 104, and the bus 106b is located on one side of the transmission line 106a.

[0040] There are five transmission lines 106a, which are used to transmit the temperature measured by five thermocouples 104. The bus 106b is used to gather the five transmission lines 106a. Both the transmission lines 106a and the bus 106b are filled with thermal insulation cotton, and the surface of the thermal insulation cotton is covered with fireproof material.

[0041] Specifically, the display component 107 includes a support frame 107a, a digital display device 107b, and a data cable 107c. The support frame 107a is located on one side of the boiler 101, the digital display device 107b is located at the end of the support frame 107a, and the data cable 107c is located on one side of the digital display device 107b.

[0042] The support frame 107a is fixed to one side of the boiler 101, the digital display device 107b is fixed to the end of the support frame 107a, and the data cable 107c is fixed inside the digital display device 107b. It is used to display the data fed back by the computer on the digital display device 107b. The digital display device 107b can intuitively reflect the change of the tube wall temperature at different positions of the heating surface 102 over time in the form of a curve, which makes it convenient for operators to understand the trend of the wall temperature of the boiler heating surface 102. It also includes the display of the over-temperature situation of the heating surface 102 wall temperature in two forms: list and over-temperature bar graph. The purpose is to compare the wall temperature of the heating surface 102 with the maximum allowable temperature. If the maximum allowable temperature is exceeded, it will be displayed in red font in the over-temperature statistics table, and the specific over-temperature value and the over-temperature operation time will be given to remind the operators.

[0043] Example 2

[0044] Reference Figure 1 , 2 4, 5 and Figure 6 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0045] Specifically, the remote transmission component 108 includes a fixed frame 108a and a remote transmission device 108b. The fixed frame 108a is disposed on one side of the support frame 107a, and the remote transmission device 108b is located on top of the fixed frame 108a.

[0046] The mounting bracket 108a is fixed to one side of the support bracket 107a. The remote transmission device 108b is fixed to the top of the mounting bracket 108a and connected to the data cable 107c. The temperature data is transmitted to the computer through the remote transmission device 108b, so that the computer can analyze the temperature data. The analyzed data is transmitted to the digital display device 107b through the data cable 107c via the remote transmission device 108b and displayed on the digital display device 107b.

[0047] Specifically, the fastener 201 includes a fastening sleeve 201a, a first spring 201b, and a limiting post 201c. The fastening sleeve 201a is disposed on one side of the heated surface 102, the end of the first spring 201b is disposed on the inner wall of the fastening sleeve 201a, and the limiting post 201c is located on the inner bottom wall of the fastening sleeve 201a.

[0048] The fixing sleeve 201a is fixed to one side of the heated surface 102, the end of the first spring 201b is fixed to the top inner wall of the fixing sleeve 201a, the limiting post 201c is fixed to the inner bottom wall of the fixing sleeve 201a, and a protrusion is fixed on the surface of the limiting post 201c.

[0049] Specifically, the sliding member 202 includes a sliding column 202a, a support shell 202b, a support shaft 202c, and a handle 202d. The sliding column 202a is disposed inside the fixed sleeve 201a, the support shell 202b is located at the end of the sliding column 202a, the support shaft 202c is disposed inside the support shell 202b, and the handle 202d is located on one side of the support shell 202b.

[0050] The sliding column 202a slides inside the fixed sleeve 201a and slides on the surface of the limiting column 201c. The sliding column 202a is limited by the protrusion on the surface of the limiting column 201c, so that the sliding column 202a will not rotate. One end of the first spring 201b is fixed to the inner wall of the top of the fixed sleeve 201a, and the other end is fixed to one side of the sliding column 202a. Under the action of the return spring force of the first spring 201b, the sliding column 202a will slide towards the inner bottom wall of the fixed sleeve 201a. The support shell 202b is fixed to the end of the sliding column 202a. Both ends of the support shaft 202c are fixed to the inner wall of the support shell 202b. The handle 202d is fixed to one side of the support shell 202b. By pulling the handle 202d, the sliding column 202a can be pulled, so that the sliding column 202a moves outward of the fixed sleeve 201a.

[0051] Example 3

[0052] Reference Figure 2 , 4 and Figure 6 This is the third embodiment of the present invention, which is based on the first two embodiments.

[0053] Specifically, the clamping member 203 includes a fixed clamp 203a, a movable clamp 203b, a second spring 203c, and a clamping piece 203d. The fixed clamp 203a is disposed inside the support shell 202b, the movable clamp 203b is disposed on the surface of the support shaft 202c, one end of the second spring 203c is disposed inside the movable clamp 203b, and the clamping piece 203d is located at the other end of the second spring 203c.

[0054] The fixed clamp 203a is fixed inside the support shell 202b, and the movable clamp 203b is rotatably connected to the surface of the support shaft 202c. One end of the second spring 203c is fixed inside the movable clamp 203b, and the clamping piece 203d is fixed to the other end of the second spring 203c. The movable clamp 203b is also provided with a second spring 203c and a clamping piece 203d for clamping and fixing the thermocouple 104. By setting the second spring 203c, when fixing the thermocouple 104, the clamping piece 203d can be pressed tightly against the thermocouple 104 under the action of the return spring force of the second spring 203c. At this time, the thermocouple 104 is temporarily clamped and fixed. The thermocouple 104 can be fixed to one side of the heated surface 102 by the fused metal 105, so as to facilitate the support of the thermocouple 104 when the fused metal 105 fixes the thermocouple 104.

[0055] Specifically, the limiting component 204 includes a threaded post 204a, a limiting pin 204b, and a third spring 204c. The threaded post 204a is located inside the support shell 202b, the limiting pin 204b is located on one side of the threaded post 204a, and the end of the third spring 204c is located on the inner wall of the limiting pin 204b.

[0056] The threaded post 204a is rotatably connected to the support shell 202b via a thread. The limiting pin 204b slides within the support shell 202b. One end of the third spring 204c is fixed to the inner wall of the limiting pin 204b, and the other end of the third spring 204c is located on one side of the threaded post 204a. When the threaded post 204a is rotated, it can push the limiting pin 204b to move towards the end of the movable clamp 203b. Both the end of the limiting pin 204b and the end of the movable clamp 203b have arcs. The compression of the limiting pin 204b causes the movable clamp 203b to rotate, thereby causing the clamp to... The thermocouple 104 is clamped and fixed by the plate 203d. When the thermocouple 104 is fixed by the fused metal 105, the limiting pin 204b exerts a light squeezing force on the end of the movable clamp 203b under the push of the third spring 204c. At this time, the thermocouple 104 can be inserted between the two clamps 203d without rotating the threaded post 204a, so that the clamps 203d clamp the thermocouple 104. This simplifies the support operation of the thermocouple 104 when it is fixed by the fused metal 105.

[0057] Specifically, first, place the thermocouple 104 inside the clip 203d and make the end of the thermocouple 104 fit against the heated surface 102;

[0058] Next, the thermocouple 104 is fixed to one side of the heated surface 102 using the fused metal 105;

[0059] Next, connect the transmission line 106a to the thermocouple 104, and connect the data line 107c to the digital display device 107b and the remote transmission device 108b.

[0060] Then, the temperature measurement data is transmitted to the computer via the remote transmission device 108b, so that the computer can monitor and analyze the boiler wall temperature data and store the monitoring data.

[0061] Finally, the digital display device 107b visualizes the obtained temperature measurement data.

[0062] In use, when fixing the thermocouple 104, first remove rust from the test point on the heated surface 102. Then, place the thermocouple 104 between the two clamps 203d, so that the clamps 203d support the thermocouple 104 and make the end of the thermocouple 104 fit against the heated surface 102. Next, use the fused metal 105 to fix the thermocouple 104 to one side of the heated surface 102. Then, pull the handle 202d to pull the sliding column 202a, so that the sliding column 202a moves outward of the fixing sleeve 201a, thereby compressing the first spring 201b. At this time, the two clamps 203d slide on the surface of the thermocouple 104. Rotating the threaded column 204a pushes the limiting pin 204b towards the end of the movable clamp 203b. The limiting pin 204b presses the movable clamp 203b to rotate, thereby clamping and fixing the thermocouple 104 with the clamping plate 203d. At the same time, the sliding column 202a is fixed. Under the return force of the first spring 201b, the sliding column 202a always has a force to move towards the fixed sleeve 201a, and at the same time, the thermocouple 104 has a force to move towards the heated surface 102. This avoids the problem of poor contact of the thermocouple 104 caused by the molten metal 105 falling off after long-term use.

[0063] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A boiler heating surface wall temperature detection device, characterized in that: include, A fixed assembly (100) includes a boiler (101), a heating surface (102), a support member (103), a thermocouple (104), fused metal (105), a data transmission member (106), a display member (107), and a remote transmission member (108). The heating surface (102) is located inside the boiler (101), the support member (103) is disposed on one side of the boiler (101), the thermocouple (104) is located on one side of the heating surface (102), the fused metal (105) is disposed on the surface of the thermocouple (104), the data transmission member (106) is disposed at the end of the thermocouple (104), the display member (107) is located on one side of the boiler (101), and the remote transmission member (108) is disposed on one side of the display member (107). A clamping assembly (200) is disposed on one side of the heated surface (102) and includes a fixing member (201), a sliding member (202), a clamping member (203), and a limiting member (204). The fixing member (201) is disposed on one side of the heated surface (102), the sliding member (202) is located inside the fixing member (201), the clamping member (203) is disposed inside the sliding member (202), and the limiting member (204) is located on one side of the sliding member (202). The fastener (201) includes a fixing sleeve (201a) fixed to one side of the heated surface (102); The sliding member (202) includes a sliding column (202a) that slides within the fixed sleeve (201a), a support shell (202b) fixed to the end of the sliding column (202a), and a support shaft (202c) fixed within the support shell (202b); The clamping member (203) includes a fixed clamp (203a), a movable clamp (203b), a second spring (203c), and a clamping piece (203d). The fixed clamp (203a) is disposed inside the support shell (202b), the movable clamp (203b) is disposed on the surface of the support shaft (202c), one end of the second spring (203c) is disposed inside the movable clamp (203b), and the clamping piece (203d) is located at the other end of the second spring (203c). The limiting member (204) includes a threaded post (204a), a limiting pin (204b), and a third spring (204c). The threaded post (204a) is located inside the support shell (202b), the limiting pin (204b) is disposed on one side of the threaded post (204a), and the end of the third spring (204c) is disposed on the inner wall of the limiting pin (204b).

2. The boiler heating surface wall temperature detection device as described in claim 1, characterized in that: The support member (103) includes a stiffening plate (103a) and a fixing seat (103b). The stiffening plate (103a) is disposed on one side of the boiler (101), and the fixing seat (103b) is located on one side of the stiffening plate (103a).

3. The boiler heating surface wall temperature detection device as described in claim 2, characterized in that: The data transmission device (106) includes a transmission line (106a) and a bus (106b), the transmission line (106a) being disposed at the end of the thermocouple (104), and the bus (106b) being located on one side of the transmission line (106a).

4. The boiler heating surface wall temperature detection device as described in claim 3, characterized in that: The display unit (107) includes a support frame (107a), a digital display device (107b), and a data cable (107c). The support frame (107a) is located on one side of the boiler (101), the digital display device (107b) is located at the end of the support frame (107a), and the data cable (107c) is located on one side of the digital display device (107b).

5. The boiler heating surface wall temperature detection device as described in claim 4, characterized in that: The remote transmission component (108) includes a fixed frame (108a) and a remote transmission device (108b). The fixed frame (108a) is disposed on one side of the support frame (107a), and the remote transmission device (108b) is located on top of the fixed frame (108a).

6. The boiler heating surface wall temperature detection device as described in claim 4 or 5, characterized in that: The fixing member (201) further includes a first spring (201b) and a limiting post (201c). The end of the first spring (201b) is disposed on the inner wall of the fixing sleeve (201a), and the limiting post (201c) is located on the inner bottom wall of the fixing sleeve (201a).

7. The boiler heating surface wall temperature detection device as described in claim 6, characterized in that: The slider (202) also includes a handle (202d) located on one side of the support shell (202b).

8. A method for detecting the wall temperature of a boiler heating surface, characterized in that: Including the fixing component (100) and clamping component (200) as described in any one of claims 1-7, and the specific operating steps are as follows: First, place the thermocouple (104) inside the clip (203d) and make the end of the thermocouple (104) fit against the heated surface (102); Next, the thermocouple (104) is fixed to one side of the heated surface (102) using the fused metal (105); Next, connect the transmission line (106a) to the thermocouple (104), and connect the data line (107c) to the digital display device (107b) and the remote transmission device (108b). Then, the temperature measurement data is transmitted to the computer via the remote transmission device (108b), so that the computer can monitor and analyze the boiler wall temperature data and store the monitoring data. Finally, the digital display device (107b) visualizes the obtained temperature measurement data.