Boiler corrosion detection system
By setting up dissolved hydrogen measurement parts in the boiler water supply pipeline, steam drum and main steam pipeline, the hydrogen content is detected to judge the degree of corrosion, the safety hazards and economic losses caused by boiler corrosion are solved, accurate detection and timely processing are achieved, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202421741946.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In modern industry, thermal equipment such as boilers and other thermal equipment are corroded by metals caused by poor water quality, resulting in safety hazards such as scaling and pipe bursting, which will affect the service life of the equipment and lead to economic losses.
A boiler corrosion detection system is designed. By setting dissolved hydrogen measurement parts in the water supply pipeline, steam drum and main steam pipeline respectively, the hydrogen content in each pipeline is detected, thereby judging the degree of corrosion, and real-time monitoring and alarming is carried out through the data processing module and the alarm module.
It realizes accurate detection and positioning of the corrosion degree of each pipeline of the boiler, promptly deal with corrosion problems, reduces the occurrence of danger, extends the service life of the equipment, and reduces economic losses.
Smart Images
Figure CN222979392U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of thermal equipment detection, and specifically, to a boiler corrosion detection system. Background Art
[0002] In modern industry, the water-vapor quality in a thermal system is an important factor affecting the safe and economic operation of thermal equipment such as boilers and steam turbines. Poor water quality can cause metal corrosion, and the corrosion products can further deteriorate the water quality, which further exacerbates the metal corrosion and causes scaling. Seriously, it can lead to boiler tube bursts. Such a vicious cycle shortens the service life of thermal equipment, causing significant economic losses and safety hazards. Utility Model Content
[0003] The purpose of the present disclosure is to provide a boiler corrosion detection system to solve the technical problems existing in the related art.
[0004] To achieve the above purpose, the present disclosure provides a boiler corrosion detection system, which includes a feed water pipeline, a steam drum, a downcomer pipeline, a water wall pipeline, a steam-water separation pipeline, a superheater, a main steam pipeline, a first dissolved hydrogen measuring element, a second dissolved hydrogen measuring element, and a third dissolved hydrogen measuring element;
[0005] The outlet of the feed water pipeline is communicated with the first inlet of the steam drum, the first outlet of the steam drum is communicated with the inlet of the downcomer pipeline, the outlet of the downcomer pipeline is communicated with the inlet of the water wall pipeline, the outlet of the water wall pipeline is communicated with the second inlet of the steam drum, the second outlet of the steam drum is communicated with the inlet of the steam-water separation pipeline, the outlet of the steam-water separation pipeline is communicated with the inlet of the superheater, and the outlet of the superheater is communicated with the inlet of the main steam pipeline;
[0006] Wherein, the first dissolved hydrogen measuring element is arranged on the feed water pipeline, the second dissolved hydrogen measuring element is arranged inside the steam drum, and the third dissolved hydrogen measuring element is arranged on the main steam pipeline.
[0007] Optionally, the detection system further includes a reheater pipeline, a reheater, and a fourth dissolved hydrogen measuring element. The reheater is arranged on the reheater pipeline, and the fourth dissolved hydrogen measuring element is arranged on the reheater pipeline.
[0008] Optionally, the detection system further includes a first temperature detector, a second temperature detector, a third temperature detector, and a fourth temperature detector;
[0009] The first temperature detector is arranged on the feed water pipeline, the second temperature detector is arranged on the steam-water separation pipeline, the third temperature detector is arranged on the main steam pipeline, and the fourth temperature detector is arranged on the reheater pipeline.
[0010] Optionally, the detection system further includes a first pressure detector, a second pressure detector, a third pressure detector, and a fourth pressure detector;
[0011] The first pressure detector is disposed on the water supply pipeline, the second pressure detector is disposed on the steam-water separation pipeline, the third pressure detector is disposed on the main steam pipeline, and the fourth pressure detector is disposed on the reheater pipeline.
[0012] Optionally, the detection system further includes a data processing module and an alarm module;
[0013] Wherein, the first dissolved hydrogen measuring element, the second dissolved hydrogen measuring element, the third dissolved hydrogen measuring element, and the fourth dissolved hydrogen measuring element are all electrically connected to the data processing module;
[0014] The first temperature detector, the second temperature detector, the third temperature detector, and the fourth temperature detector are all electrically connected to the data processing module;
[0015] The first pressure detector, the second pressure detector, the third pressure detector, and the fourth pressure detector are all electrically connected to the data processing module;
[0016] The data processing module is electrically connected to the alarm module.
[0017] Optionally, the data processing module includes an analog-to-digital converter, a comparator, a memory, a display circuit, a serial port, a wireless communication unit, and a controller;
[0018] Wherein, the analog-to-digital converter, the comparator, the memory, the display circuit, the serial port, and the wireless communication unit are all electrically connected to the controller;
[0019] The first dissolved hydrogen measuring element, the second dissolved hydrogen measuring element, the third dissolved hydrogen measuring element, the fourth dissolved hydrogen measuring element, the first temperature detector, the second temperature detector, the third temperature detector, the fourth temperature detector, the first pressure detector, the second pressure detector, the third pressure detector, and the fourth pressure detector are all electrically connected to the analog-to-digital converter;
[0020] The wireless communication unit is wirelessly communicatively connected to the alarm module.
[0021] Optionally, the alarm module includes a workstation and an alarm;
[0022] The workstation is wirelessly communicatively connected to the wireless communication unit, and the workstation can control the alarm to issue an alarm.
[0023] Optionally, the controller includes a single-chip microcomputer.
[0024] Optionally, the detection system further includes an economizer, which is arranged in the feed water pipeline and between the first dissolved hydrogen measuring element and the steam drum.
[0025] Optionally, the first dissolved hydrogen measuring element, the second dissolved hydrogen measuring element, the third dissolved hydrogen measuring element and the fourth dissolved hydrogen measuring element are all configured as dissolved hydrogen measuring instruments.
[0026] In the above technical solution, the water transported from the feed water pipeline enters the steam drum, then enters the water wall pipeline through the downcomer pipeline, absorbs the evaporation heat, and then returns to the steam drum. After the steam-water separation, the water enters the water wall pipeline again for heating, and the steam enters the steam-water separation pipeline and then enters the superheater. The steam entering the superheater absorbs heat and becomes superheated steam with a certain temperature and pressure and enters the main steam pipeline, and then enters the high-pressure cylinder of the steam turbine to do work. By arranging the first dissolved hydrogen measuring element in the feed water pipeline, the second dissolved hydrogen measuring element in the steam drum and the third dissolved hydrogen measuring element in the main steam pipeline, the hydrogen content in each pipeline can be effectively detected, the corrosion degree of each pipeline can be effectively judged, the corroded pipeline can be accurately located, which is convenient for the staff to handle in time and reduces the occurrence of danger.
[0027] Other features and advantages of the present disclosure will be described in detail in the following specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The drawings are used to provide a further understanding of the present disclosure, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present disclosure, but do not constitute a limitation to the present disclosure. In the drawings:
[0029] Figure 1 is a schematic structural diagram of a boiler corrosion detection system according to an embodiment of the present disclosure.
[0030] Figure 2 is a control schematic diagram of a boiler corrosion detection system according to an embodiment of the present disclosure.
[0031] DESCRIPTION OF THE REFERENCE NUMERALS
[0032] 1. Feed water pipeline; 2. Economizer; 3. Steam drum; 4. Downcomer pipeline; 5. Water wall pipeline; 6. Steam-water separation pipeline; 7. Superheater; 8. Main steam pipeline; 9. Reheater; 10. Reheater pipeline; 11. First dissolved hydrogen measuring element; 12. Second dissolved hydrogen measuring element; 13. Third dissolved hydrogen measuring element; 14. Fourth dissolved hydrogen measuring element;
[0033] 100. Data processing module; 1001. Analog-to-digital converter; 1002. Comparator; 1003. Memory; 1004. Display circuit; 1005. Serial port; 1006. Wireless communication unit; 1007. Controller;
[0034] 200. Alarm module; 2001. Workstation; 2002. Alarm; Specific embodiments
[0035] The specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustration and explanation of the present disclosure, and are not intended to limit the present disclosure.
[0036] Referring to Figures 1 to 2 As shown, the present disclosure provides a boiler corrosion detection system, which includes a feed water pipe 1, a steam drum 3, a downcomer 4, a water wall pipe 5, a steam-water separation pipe 6, a superheater 7, a main steam pipe 8, a first dissolved hydrogen measuring element 11, a second dissolved hydrogen measuring element 12, and a third dissolved hydrogen measuring element 13.
[0037] The outlet of the feed water pipe 1 is communicated with the first inlet of the steam drum 3, the first outlet of the steam drum 3 is communicated with the inlet of the downcomer 4, the outlet of the downcomer 4 is communicated with the inlet of the water wall pipe 5, the outlet of the water wall pipe 5 is communicated with the second inlet of the steam drum 3, the second outlet of the steam drum 3 is communicated with the inlet of the steam-water separation pipe 6, the outlet of the steam-water separation pipe 6 is communicated with the inlet of the superheater 7, and the outlet of the superheater 7 is communicated with the inlet of the main steam pipe 8.
[0038] Among them, the first dissolved hydrogen measuring element 11 is arranged on the feed water pipe 1, the second dissolved hydrogen measuring element 12 is arranged in the steam drum 3, and the third dissolved hydrogen measuring element 13 is arranged on the main steam pipe 8.
[0039] In the above technical solution, the water transported from the feed water pipe 1 enters the steam drum 3, passes through the downcomer 4 and enters the water wall pipe 5, absorbs the evaporation heat, and then returns to the steam drum 3. After steam-water separation, the water enters the water wall pipe 5 again for heating, and the steam enters the steam-water separation pipe 6 and then enters the superheater 7. The steam entering the superheater 7 absorbs heat and becomes superheated steam with a certain temperature and pressure and enters the main steam pipe 8, and then enters the high-pressure cylinder of the steam turbine to do work. By arranging the first dissolved hydrogen measuring element 11 on the feed water pipe 1, the second dissolved hydrogen measuring element 12 in the steam drum 3, and the third dissolved hydrogen measuring element 13 on the main steam pipe 8, the hydrogen content in each pipeline can be effectively detected, and thus the corrosion degree of each pipeline can be effectively judged, accurately locating the corroded pipeline, facilitating the staff to process in time and reducing the occurrence of danger.
[0040] In one embodiment, referring toFigure 1 As shown, the detection system further includes a reheater pipeline 10, a reheater 9, and a fourth dissolved hydrogen measuring element 14. The reheater 9 is arranged in the reheater pipeline 10, and the fourth dissolved hydrogen measuring element 14 is arranged in the reheater pipeline 10. As can be seen from the above, when the steam has done work in the high-pressure cylinder, it enters the reheater 9 through the cold section of the reheater pipeline 10 and is heated to the rated temperature, and then enters the middle cylinder and low cylinder of the cylinder machine through the hot section of the reheater pipeline 10 to continue doing work. By arranging the fourth dissolved hydrogen measuring element 14 in the reheater pipeline 10, the corrosion degree of the reheater pipeline 10 can be effectively judged, which is convenient for the staff to locate and process the corroded pipeline in time and reduce the occurrence of danger.
[0041] Optionally, the detection system may further include a first temperature detector (not shown), a second temperature detector (not shown), a third temperature detector (not shown), and a fourth temperature detector (not shown). The first temperature detector is arranged on the feed water pipeline 1, the second temperature detector is arranged on the steam-water separation pipeline 6, the third temperature detector is arranged on the main steam pipeline 8, and the fourth temperature detector is arranged on the reheater pipeline 10. By arranging the temperature detectors, the temperature of each pipeline can be effectively detected, avoiding damage to the pipeline caused by too high temperature.
[0042] In another embodiment, the detection system may further include a first pressure detector (not shown), a second pressure detector (not shown), a third pressure detector (not shown), and a fourth pressure detector (not shown). The first pressure detector is arranged on the feed water pipeline 1, the second pressure detector is arranged on the steam-water separation pipeline 6, the third pressure detector is arranged on the main steam pipeline 8, and the fourth pressure detector is arranged on the reheater pipeline 10. By arranging the pressure detectors, the pressure of each pipeline can be effectively detected, avoiding safety accidents caused by excessive pressure.
[0043] Refer to Figure 2 As shown, the detection system further includes a data processing module 100 and an alarm module 200; among them, the first dissolved hydrogen measuring element 11, the second dissolved hydrogen measuring element 12, the third dissolved hydrogen measuring element 13, and the fourth dissolved hydrogen measuring element 14 are all electrically connected to the data processing module 100; the first temperature detector, the second temperature detector, the third temperature detector, and the fourth temperature detector are all electrically connected to the data processing module 100; the first pressure detector, the second pressure detector, the third pressure detector, and the fourth pressure detector are all electrically connected to the data processing module 100; the data processing module 100 is electrically connected to the alarm module 200.
[0044] In this embodiment, by providing a data processing module 100 and an alarm module 200, the temperature data detected by the temperature detector can be sent to the data processing module 100. The data processing module 100 can compare the received temperature data with a preset temperature threshold and send the comparison result to the alarm module 200. When the temperature data exceeds the preset temperature threshold, the alarm module 200 can give an alarm reminder to avoid pipeline damage caused by excessive temperature. Similarly, the pressure data detected by the pressure detector can be sent to the data processing module 100. The data processing module 100 can compare the received pressure data with a preset pressure threshold and send the comparison result to the alarm module 200. When the pressure data exceeds the preset pressure threshold, the alarm module 200 can give an alarm reminder to avoid pipeline damage caused by excessive pressure and prevent accidents from occurring.
[0045] In other embodiments, referring to Figure 2 as shown, the data processing module 100 includes an analog-to-digital converter 1001, a comparator 1002, a memory 1003, a display circuit 1004, a serial port 1005, a wireless communication unit 1006, and a controller 1007. Among them, the analog-to-digital converter 1001, the comparator 1002, the memory 1003, the display circuit 1004, the serial port 1005, and the wireless communication unit 1006 are all electrically connected to the controller 1007. The first dissolved hydrogen measuring element 11, the second dissolved hydrogen measuring element 12, the third dissolved hydrogen measuring element 13, the fourth dissolved hydrogen measuring element 14, the first temperature detector, the second temperature detector, the third temperature detector, the fourth temperature detector, the first pressure detector, the second pressure detector, the third pressure detector, and the fourth pressure detector are all electrically connected to the analog-to-digital converter 1001. The wireless communication unit 1006 is wirelessly communicatively connected to the alarm module 200. However, the present disclosure does not limit the specific setting scheme of the data processing module 100.
[0046] Optionally, referring to Figure 2As shown, the alarm module 200 includes a workstation 2001 and an alarm 2002. The workstation 2001 is wirelessly communicatively connected to the wireless communication unit 1006, and the workstation 2001 can control the alarm 2002 to issue an alarm. In this embodiment, the workstation 2001 may include a data terminal and a server. The temperature sensor can send the detected temperature data to the controller 1007. The controller 1007 can compare the received temperature data with a preset temperature threshold through the comparator 1002 and send the comparison result to the data terminal. When the temperature data exceeds the preset temperature threshold, the data terminal can generate an alarm message through the alarm 2002 to give an alarm reminder to avoid pipeline damage caused by excessive temperature. The pressure sensor can send the detected pressure data to the controller 1007. The controller 1007 can compare the received pressure data with a preset pressure threshold through the comparator 1002 and send the comparison result to the data terminal. When the pressure data exceeds the preset pressure threshold, the data terminal can generate an alarm message through the alarm 2002 to give an alarm reminder to avoid pipeline damage caused by excessive pressure.
[0047] In addition, the above-mentioned controller 1007 may include a single-chip microcomputer, but the present disclosure does not limit the specific type of the controller 1007.
[0048] In addition, with reference to Figure 1 As shown, the detection system further includes an economizer 2. The economizer 2 is arranged on the feed water pipeline 1, and the economizer 2 is arranged between the first dissolved hydrogen measuring element 11 and the steam drum 3. By arranging this economizer 2, the water coming from the feed water pipeline 1 enters the economizer 2 and is heated to a temperature close to the saturation temperature to meet the requirements for entering the steam drum 3.
[0049] Optionally, the above-mentioned first dissolved hydrogen measuring element 11, second dissolved hydrogen measuring element 12, third dissolved hydrogen measuring element 13 and fourth dissolved hydrogen measuring element 14 are all configured as dissolved hydrogen measuring instruments, but the present disclosure does not limit the specific types of the first dissolved hydrogen measuring element 11, second dissolved hydrogen measuring element 12, third dissolved hydrogen measuring element 13 and fourth dissolved hydrogen measuring element 14.
[0050] The preferred embodiments of the present disclosure have been described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0051] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present disclosure does not separately describe various possible combination methods.
[0052] In addition, any combination can be made among various different embodiments of the present disclosure, as long as it does not violate the idea of the present disclosure, and the same shall be regarded as the content disclosed by the present disclosure.
Claims
1. A boiler corrosion detection system, characterized in that: The detection system includes a feed water pipeline, a steam drum, a downcomer, a water wall pipeline, a steam-water separation pipeline, a superheater, a main steam pipeline, a first dissolved hydrogen measuring device, a second dissolved hydrogen measuring device and a third dissolved hydrogen measuring device; The outlet of the water supply pipeline is communicated with the first inlet of the drum, the first outlet of the drum is communicated with the inlet of the downcomer, the outlet of the downcomer is communicated with the inlet of the water-cooled wall pipeline, the outlet of the water-cooled wall pipeline is communicated with the second inlet of the drum, the second outlet of the drum is communicated with the inlet of the steam-water separation pipeline, the outlet of the steam-water separation pipeline is communicated with the inlet of the superheater, and the outlet of the superheater is communicated with the inlet of the main steam pipeline; Wherein, the first dissolved hydrogen measuring device is arranged in the water supply pipeline, the second dissolved hydrogen measuring device is arranged in the steam drum, and the third dissolved hydrogen measuring device is arranged in the main steam pipeline.
2. The boiler corrosion detection system according to claim 1, characterized in that: The detection system further includes a reheater pipeline, a reheater, and a fourth dissolved hydrogen measuring device. The reheater is arranged in the reheater pipeline, and the fourth dissolved hydrogen measuring device is arranged in the reheater pipeline.
3. The boiler corrosion detection system according to claim 2, characterized in that: The detection system also includes a first temperature detector, a second temperature detector, a third temperature detector and a fourth temperature detector; The first temperature detector is arranged on the feed water pipeline, the second temperature detector is arranged on the steam-water separation pipeline, the third temperature detector is arranged on the main steam pipeline, and the fourth temperature detector is arranged on the reheater pipeline.
4. The boiler corrosion detection system according to claim 3, characterized in that: The detection system further includes a first pressure detector, a second pressure detector, a third pressure detector and a fourth pressure detector; The first pressure detector is arranged on the feed water pipeline, the second pressure detector is arranged on the steam-water separation pipeline, the third pressure detector is arranged on the main steam pipeline, and the fourth pressure detector is arranged on the reheater pipeline.
5. The boiler corrosion detection system according to claim 4, characterized in that: The detection system also includes a data processing module and an alarm module; Wherein, the first dissolved hydrogen measuring device, the second dissolved hydrogen measuring device, the third dissolved hydrogen measuring device and the fourth dissolved hydrogen measuring device are all electrically connected to the data processing module; The first temperature detector, the second temperature detector, the third temperature detector and the fourth temperature detector are all electrically connected to the data processing module; The first pressure detector, the second pressure detector, the third pressure detector and the fourth pressure detector are all electrically connected to the data processing module; The data processing module is electrically connected to the alarm module.
6. The boiler corrosion detection system according to claim 5, characterized in that: The data processing module includes an analog-to-digital converter, a comparator, a memory, a display circuit, a serial port, a wireless communication unit and a controller; Wherein, the analog-to-digital converter, the comparator, the memory, the display circuit, the serial port and the wireless communication unit are all electrically connected to the controller; The first dissolved hydrogen measuring device, the second dissolved hydrogen measuring device, the third dissolved hydrogen measuring device, the fourth dissolved hydrogen measuring device, the first temperature detector, the second temperature detector, the third temperature detector, the fourth temperature detector, the first pressure detector, the second pressure detector, the third pressure detector, and the fourth pressure detector are all electrically connected to the analog-to-digital converter; The wireless communication unit is connected to the alarm module by wireless communication.
7. The boiler corrosion detection system according to claim 6, characterized in that: The alarm module includes a workstation and an alarm. The workstation is wirelessly connected to the wireless communication unit, and the workstation can control the alarm to sound an alarm.
8. The boiler corrosion detection system according to claim 6, characterized in that: The controller includes a single chip microcomputer.
9. The boiler corrosion detection system according to any one of claims 1 to 6, characterized in that: The detection system further includes an economizer, which is arranged in the feed water pipeline and between the first dissolved hydrogen measuring component and the steam drum.
10. The boiler corrosion detection system according to claim 2, characterized in that: The first dissolved hydrogen measuring device, the second dissolved hydrogen measuring device, the third dissolved hydrogen measuring device, and the fourth dissolved hydrogen measuring device are all configured as dissolved hydrogen measuring instruments.