Condenser cleaning system with suction and flushing functions

Abstract

The utility model provides a kind of condenser cleaning system with suction and flushing function, including cleaning robot, the cleaning robot is installed in condenser water chamber, the cleaning robot includes mother tube and mechanical arm, the mother tube is equipped with suction port and one section suction passage, the mechanical arm is equipped with another section suction passage, the suction port is used to carry out suction cleaning to condenser heat exchange tube orifice regional, the suction passage is used to discharge sewage from the suction port to the condenser water chamber outside.This application cleaning robot can eliminate the impurities on the heat exchange tube orifice and tube sheet when moving, avoid the impurities to block the heat exchange tube, and the mother tube and mechanical arm can avoid the minimum flow size of suction port and suction passage to change during the movement of cleaning robot, so as to avoid the suction port and suction passage to be blocked during suction process.

Description

Technical Field

[0001] This utility model relates to the field of condenser cleaning, specifically to a condenser cleaning system with suction and flushing functions. Background Technology

[0002] Condenser is one of the important cold-end equipment in thermal power plants. After a period of operation, sludge and microorganisms will adhere to the heat exchange tubes of the condenser, resulting in shellfish growth and fouling issues.

[0003] Currently, the most common technical solutions for cleaning condensers and other heat exchange devices with tube sheets and heat exchange tubes involve high-pressure water flushing.

[0004] However, once seashells enter the condenser with the circulating water, their rapid reproduction rate and the relatively enclosed environment of the condenser provide them with a great advantage. This allows them to easily attach to and reproduce within the condenser. Once attached, these shellfish are difficult to remove with high-pressure water jets alone. Even if they are removed, some of the removed shellfish may not pass through the heat exchange tubes and could instead clog them under the impact of the high-pressure water. Furthermore, in environments with poor circulating water quality, large amounts of aquatic plants, algae, straw, and plastic debris accumulate on the condenser's tube sheets and inside the heat exchange tubes, forming a fouling layer that hinders the flow of circulating water. Severe fouling can also clog the heat exchange tubes, especially when the structural layer combines with the shellfish, making it even more difficult to remove. Using high-pressure water jets can actually exacerbate this problem by further clogging the heat exchange tube openings with the shellfish and fouling layer.

[0005] In the prior art, such as the shellfish cleaning device for the bottom wall of the condenser water chamber disclosed in Chinese Utility Model Patent CN202421054560.0, it can only handle shellfish at the bottom of the condenser water chamber, and the bottom suction device is also at risk of being blocked. For example, the online cleaning device and method for removing shellfish by adding chemicals to the condenser of a seawater cooling unit disclosed in Chinese Invention Patent CN202210041644.X uses a shellfish scraping mechanism, i.e., a hard brush, to scrape off the shellfish debris stuck at the opening of the heat exchange tube. A shell crushing mechanism can crush the scraped shellfish by lifting and lowering. However, the process of scraping and crushing shellfish will inevitably affect the accuracy of the drive device, and the effect of scraping and crushing shellfish is difficult to guarantee. The shellfish after crushing may still block the heat exchange tube.

[0006] Therefore, when severe shellfish and fouling layers appear on the heat exchange tubes and tube sheets of the condenser, current technical solutions are insufficient to remove them, which can lead to blockage of the heat exchange tubes or even blockage of the suction channel. To solve this problem, people have been seeking an ideal technical solution. Utility Model Content

[0007] The purpose of this invention is to address the shortcomings of existing technologies by providing a condenser cleaning system with suction and flushing functions. This system can remove impurities from the condenser heat exchange tubes and tube sheets through the suction cleaning of a cleaning robot, thus preventing blockage of the heat exchange tubes and suction channels.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a cleaning robot, which is installed in the condenser inlet water chamber. The cleaning robot includes a main pipe and a robotic arm. The main pipe is provided with a suction port and a section of the suction channel. The robotic arm is provided with another section of the suction channel. The suction port is used to perform suction cleaning of the condenser heat exchange tube inlets in sections. The suction channel is used to discharge sewage from the suction port to the outside of the condenser inlet water chamber.

[0009] This application utilizes a cleaning robot to perform zoned suction and cleaning at the inlets of the condenser heat exchange tubes. As the cleaning robot moves, it instantly removes impurities from the tube inlets and tube sheets, preventing them from clogging the tubes in various forms. Furthermore, by assembling the suction port and suction channel on the cleaning robot, deformation of the main tube and its robotic arm is avoided during movement. This prevents changes in the minimum flow dimensions of the suction port and suction channel during the cleaning process, ensuring that impurities can be smoothly removed and preventing blockage by shellfish, dirt layers, or other impurities.

[0010] Based on the above, the condenser cleaning system also includes a siphon pipe. The suction channel is connected to the condenser outlet side through the siphon pipe. The suction port, the suction channel, and the siphon pipe form a siphon passage on both sides of the condenser inlet and outlet. The siphon passage is used to perform suction cleaning through the pressure difference between the condenser inlet and outlet sides and to discharge sewage to the condenser outlet side.

[0011] By setting the power source for suction cleaning to the pressure difference between the inlet and outlet of the condenser, the siphon passage can efficiently utilize the pressure difference between the inlet and outlet of the condenser. When suction cleaning is performed at the inlet of the condenser heat exchange tubes, it has strong suction pressure, a wide suction range, and sufficient minimum flow size. The effect and efficiency of removing impurities are high, no water pump energy consumption is required, and the siphon passage can directly discharge sewage to the outlet side of the condenser, reducing the complexity of the pipeline.

[0012] Based on the above, the condenser cleaning system also includes a water pump, a pump suction pipe, and a pump discharge pipe. The suction channel is connected to the water pump through the pump suction pipe, and the water pump is connected to the condenser outlet side through the pump discharge pipe. The suction port, the suction channel, the pump suction pipe, the water pump, and the pump discharge pipe form a pump suction passage. The pump suction passage is used to perform suction cleaning by the water pump when the pressure difference between the inlet and outlet of the condenser is insufficient, and to discharge sewage to the outlet side of the condenser.

[0013] By using the pump suction passage as a backup suction and cleaning passage, the situation where suction and cleaning cannot be performed when the pressure difference between the condenser inlet and outlet water is insufficient can be avoided.

[0014] Based on the above, the condenser cleaning system also includes a pumping flushing pipe, and the cleaning robot also includes a spray nozzle and a spray channel. The spray nozzle faces the condenser heat exchange tube inlet and tube sheet. The water pump, the pumping flushing pipe, the spray channel and the spray nozzle form a flushing passage, which is used for flushing and cleaning by the water pump.

[0015] By using the flushing passage to flush and clean the inlets of the condenser heat exchange tubes, the cleaning ability of the condenser heat exchange tubes and tube sheets can be further enhanced, which is beneficial to eliminating stubborn impurities.

[0016] Based on the above, the condenser cleaning system includes two sets of cleaning robots, which share a single water pump. The single water pump enables the two sets of cleaning robots to perform suction cleaning and flushing cleaning respectively.

[0017] By using two sets of cleaning robots, potential interference can be avoided if the same set of cleaning robots performs both suction and rinsing cleaning simultaneously. On the other hand, the negative pressure at the inlet and the positive pressure at the outlet of a single water pump can be maximized.

[0018] Based on the above, the minimum flow size of the suction port is set to prevent the suction port from being blocked during the suction process. The minimum flow size of the suction channel is greater than or equal to the minimum flow size of the suction port, and the minimum flow size of the siphon pipe is greater than or equal to the minimum flow size of the suction channel.

[0019] As described above, the minimum flow size of the entire siphon passage is greater than or equal to the minimum flow size of the suction port at its inlet. This can prevent the entire siphon passage from being blocked and also prevent the water from losing too much pressure difference when flowing through the siphon passage, thereby increasing the suction pressure at the suction port and enhancing the suction effect.

[0020] Based on the above, the condenser cleaning system also includes a bottom suction mechanism, which is located at the bottom of the condenser inlet water chamber and is used to remove impurities deposited at the bottom of the condenser inlet water chamber.

[0021] Impurities deposited at the bottom of the condenser inlet water chamber can be discharged through a bottom suction mechanism via a siphon or pump suction path.

[0022] Based on the above, the condenser cleaning system also includes a backwashing pipe, and the outlet end of the water pump is connected to the siphon pipe through the backwashing pipe for backwashing the siphon passage by the water pump.

[0023] The backwash pipe allows the water pressure provided by the pump to backwash the siphon passage, preventing blockage.

[0024] Based on the above, the inlet end of the water pump is equipped with a filter, the pump suction pipe is connected to the water pump through the filter, the filter is equipped with a backwashing mechanism, the backwashing mechanism includes a filter discharge pipe, and the filter discharge pipe is connected to the outlet side of the condenser.

[0025] A filter can prevent the water pump from becoming clogged due to dirt.

[0026] Based on the above, the inlet end of the water pump is connected to a backup water source pipeline.

[0027] The backup water supply pipeline can provide a backup water source for the water pump during special circumstances such as maintenance, for flushing, cleaning, and backwashing.

[0028] This utility model has substantial features and progress compared to the prior art. Specifically, the cleaning robot of this application can remove impurities from the heat exchange tube inlet and tube sheet in real time when it moves, avoiding impurities from clogging the heat exchange tube. Furthermore, the main tube and robotic arm of the cleaning robot can prevent the minimum flow size of the suction port and suction channel from changing during the movement of the cleaning robot, thereby preventing the suction port and suction channel from being blocked during the suction process. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the siphon passage structure of this utility model; Figure 3 This is a schematic diagram of the pump suction passage structure of this utility model; Figure 4 This is a schematic diagram of the flushing passage structure of this utility model; Figure 5This is a frontal view of the main tube structure of the cleaning robot of this utility model; Figure 6 This is a bottom view of the main tube structure of the cleaning robot of this utility model. Figure 7 yes Figure 5 A schematic cross-sectional view along line AA in the middle; Figure 8 This is a three-dimensional perspective schematic diagram of the robotic arm structure of the cleaning robot of this utility model; Figure 9 This is a schematic axial cross-sectional view of the robotic arm bending tube structure of this utility model; Figure 10 This is a schematic axial cross-sectional view of the robotic arm joint structure of this utility model.

[0030] In the figure, the attached figures are labeled as follows: Condenser inlet water chamber 1, condenser outlet water side 2, cleaning robot 3, main pipe 35, robotic arm 36, bend 361, joint 362, water pump 4, bottom suction mechanism 5, filter 6. Siphon passage 10, pump suction passage 20, flushing passage 40; Siphon pipe 11, pump suction pipe 21, pumping sewage pipe 22, suction port 31, suction channel 32, jet port 33, jet channel 34, pumping flushing pipe 41, backwashing pipe 51, bottom suction pipe 52, filter sewage pipe 61, backup water source pipe 71. Detailed Implementation

[0031] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0032] Example 1 like Figures 1-10 As shown, the condenser cleaning system with suction and flushing functions in this embodiment includes a cleaning robot 3. The cleaning robot 3 is installed in the condenser inlet water chamber 1 and is used to perform suction cleaning operations at the inlet of the condenser heat exchange tubes during movement.

[0033] The cleaning robot 3 is equipped with a suction port 31 and a suction channel 32. Specifically, the cleaning robot 3 includes a main tube 35 and a robotic arm 36. The main tube 35 is provided with a suction port 31 and a suction channel 32 communicating with the suction port 31. The robotic arm 36 is provided with another part of the suction channel 32. The two suction channels 32 on the main tube 35 and the robotic arm 36 are connected.

[0034] More specifically, the robotic arm 36 includes several sections of bent pipe 361 and several sections of joint 362 arranged at intervals, enabling the robotic arm 36 to be rotated and unfolded or rotated and folded. During the rotational unfolding or rotational folding process, one end of the robotic arm 36 moves with the mother pipe 35 inside the condenser inlet water chamber 1; the other end of the robotic arm 36 is fixed to the shell of the condenser inlet water chamber 1 so that the suction channel 32 can be connected from the mother pipe 35 to the outside of the condenser inlet water chamber 1.

[0035] In addition, the main pipe 35 is driven by the robot moving mechanism to move within the condenser inlet water chamber 1. The robot moving mechanism can use accessories such as rails, lead screws, and motors. The main pipe 35 is movably installed on the rails and is driven by the lead screws and motors.

[0036] The suction port 31 faces the condenser heat exchange tube inlet. The cleaning robot 3 can perform suction and cleaning of the condenser heat exchange tube inlet in sections through the suction port 31. The suction and cleaning range of the suction port 31 includes the condenser heat exchange tube inlet and the tube sheet.

[0037] The suction channel 32 is used to discharge sewage from the suction port 31 to the outside of the condenser inlet water chamber 1, for example, to the condenser outlet water side 2 or the sewage pipe.

[0038] Based on the above, the cleaning robot 3 performs area-by-area suction and cleaning at the condenser heat exchange tube inlets. As the cleaning robot 3 moves, it can immediately remove impurities from the heat exchange tube inlets and tube sheets, preventing impurities from clogging the heat exchange tubes in various forms. Furthermore, by setting the suction port 31 and suction channel 32 on the cleaning robot 3, deformation of its main tube 35 and robotic arm 36 can be avoided during the robot's movement. This prevents changes in the minimum flow size of the suction port 31 and suction channel 32 during movement, ensuring that the suction port 31 and suction channel 32 can smoothly remove impurities during the cleaning operation, preventing them from being blocked by shellfish, dirt layers, or other impurities.

[0039] Example 2 Based on Embodiment 1, the condenser cleaning system with suction and flushing functions in this embodiment also includes a siphon pipe 11. The suction channel 32 is connected to the condenser outlet side 2 through the siphon pipe 11. The suction port 31, the suction channel 32 and the siphon pipe 11 form a siphon passage 10 on both sides of the condenser inlet and outlet. The siphon passage 10 is used to suction and clean the condenser by the pressure difference between the condenser inlet and outlet, and to discharge the condenser outlet side 2.

[0040] Based on the above, the minimum flow size and hydraulic radius of the siphon passage 10 are much larger than the values ​​of the condenser heat exchange tubes. Therefore, the pressure difference loss of water flowing through the condenser heat exchange tubes is greater, while the pressure difference loss of water flowing through the siphon passage 10 is smaller. Moreover, the pressure difference between the inlet and outlet of the condenser in a large power plant can generally reach 30 to 80 kPa during normal operation. This pressure difference is sufficient to form a water flow that can be used for suction cleaning within the siphon passage 10.

[0041] Compared to the method of using a water pump for suction cleaning, the differential pressure siphon method of this application can complete suction cleaning without the power of a water pump, saving energy. Moreover, water pumps also have problems such as noise, vibration, high maintenance costs, and complex pipeline structure.

[0042] Therefore, the power source for suction cleaning is set as the pressure difference between the inlet and outlet of the condenser. The siphon passage 10, formed by the suction port 31, suction channel 32, and siphon pipe 11, efficiently utilizes the pressure difference between the inlet and outlet of the condenser for suction cleaning. On the one hand, the siphon passage 10 can remove impurities from the heat exchange tube inlets and tube sheets in real time as the cleaning robot 3 moves, preventing impurities from clogging the heat exchange tubes in various forms. On the other hand, the siphon passage 10 can efficiently utilize the pressure difference between the inlet and outlet of the condenser, and has strong suction pressure, wide suction range, and sufficient minimum flow size when suction cleaning at the inlet of the condenser heat exchange tubes. The effect and efficiency of removing impurities are high, and no water pump energy consumption is required. Furthermore, the siphon passage 10 can directly discharge sewage to the outlet side 2 of the condenser, reducing the complexity of the pipeline.

[0043] Example 3 Based on Embodiment 2, the condenser cleaning system further includes a water pump 4, a pump suction pipe 21, and a pump discharge pipe 22. The suction channel 32 is connected to the water pump 4 through the pump suction pipe 21. The water pump 4 is connected to the condenser outlet side 2 through the pump discharge pipe 22. The suction port 31, the suction channel 32, the pump suction pipe 21, the water pump 4, and the pump discharge pipe 22 form a pump suction passage 20. The pump suction passage 20 is used to perform suction cleaning by the water pump 4 when the pressure difference between the inlet and outlet sides of the condenser is insufficient, and to discharge sewage to the condenser outlet side 2.

[0044] It is worth mentioning that some of the pipes in this application can be shared. For example, one end of the siphon pipe 11 and the pump suction pipe 21 can be set as a shared section.

[0045] By using the pump suction passage 20 as a backup suction and cleaning passage, the situation where suction and cleaning cannot be performed when the pressure difference between the condenser inlet and outlet water is insufficient can be avoided.

[0046] Example 4 Based on Embodiment 3, the condenser cleaning system further includes a pumping flushing pipe 41, and the cleaning robot 3 further includes a spray nozzle 33 and a spray channel 34. The spray nozzle 33 is located on the main pipe 35, and the spray channel 34 is located on the main pipe 35 and the robotic arm 36. The spray nozzle 33 faces the condenser heat exchange tube inlet and tube sheet. The water pump 4, the pumping flushing pipe 41, the spray channel 34 and the spray nozzle 33 form a flushing passage 40, which is used for flushing and cleaning by the water pump 4.

[0047] Regarding the main pipe 35, which is provided with a suction port 31, a suction channel 32, a jet port 33, and a jet channel 34, the relevant structure of a suction jet device with suction and rinsing functions can be referred to in the Chinese invention application No. CN202510247852.9 filed by the applicant.

[0048] For a robotic arm equipped with a suction channel 32 and a jet channel 34, refer to the relevant structure of a dual-channel robotic arm in Chinese Utility Model Application No. CN202520362067.3, which was recently filed by the applicant.

[0049] By using the flushing passage 40 to flush and clean the condenser heat exchange tube inlets, the cleaning ability of the condenser heat exchange tubes and tube sheets can be further enhanced, which is beneficial to eliminating stubborn impurities.

[0050] Example 5 Based on Example 4, the condenser cleaning system includes two sets of cleaning robots 3, which share a single water pump 4. The single water pump 4 enables the two sets of cleaning robots 3 to perform suction cleaning and rinsing cleaning respectively.

[0051] By using two sets of cleaning robots 3, on the one hand, the interference that may occur when the same set of cleaning robots 3 performs suction cleaning and rinsing cleaning at the same time can be avoided, and on the other hand, the negative pressure at the inlet end and the positive pressure at the outlet end of a single water pump 4 can be maximized.

[0052] Example 6 In this embodiment, the minimum flow size of the suction port 31 is set to prevent the suction port 31 from being blocked during the suction process: the minimum flow size of the suction port 31 is sufficient to draw impurities such as shellfish and dirt layers at the heat exchange tube opening into the suction port 31 without blockage, thus preventing the suction port 31 from being blocked by impurities such as shellfish and dirt layers during the suction process.

[0053] Furthermore, the minimum flow size of the suction channel 32 is greater than or equal to the minimum flow size of the suction port 31, which can further prevent the suction port 31 and the suction channel 32 from being blocked by impurities such as shellfish and dirt layers during the suction process.

[0054] Furthermore, the minimum flow size of the siphon pipe 11 is greater than or equal to the minimum flow size of the suction channel 32, which can further prevent the suction port 31 and the suction channel 32 from being blocked by impurities such as shellfish and dirt layers during the suction process.

[0055] As described above, the minimum flow size of the siphon passage 10 as a whole is greater than or equal to the minimum flow size of the suction port 31 at its inlet. This can prevent the siphon passage 10 from being blocked as a whole, and also prevent the water from losing too much pressure difference when it flows through the siphon passage 10, thereby increasing the suction pressure at the suction port 31 and enhancing the suction effect.

[0056] Example 7 In this embodiment, the condenser cleaning system further includes a bottom suction mechanism 5, which is located at the bottom of the condenser inlet water chamber 1 to remove impurities deposited at the bottom of the condenser inlet water chamber 1. The bottom suction mechanism 5 is connected to the condenser siphon passage 10 or the pump suction passage 20 through the bottom suction pipe 52. The bottom suction mechanism 5 may be composed of several bottom suction ports.

[0057] Impurities deposited at the bottom of the condenser inlet water chamber 1 can be discharged through the bottom suction mechanism 5 via the siphon passage 10 or the pump suction passage 20.

[0058] Example 8 In this embodiment, the condenser cleaning system also includes a backwash pipe 51. The outlet end of the water pump 4 is connected to the siphon pipe 11 through the backwash pipe 51 so as to backwash the siphon passage 10 through the water pump 4.

[0059] Pumping sewage pipe 22, pumping flushing pipe 41, and backwashing pipe 51 are all connected to the outlet end of water pump 4, so the three can share a section of pipe. At the same time, backwashing pipe 51, pumping sewage pipe 22, and siphon pipe 11 are all connected to the condenser outlet side 2, so the three can share a section of pipe. At the same time, backwashing pipe 51 and pumping sewage pipe 22 are both connected to the water pump outlet end and share a section of pipe with siphon pipe 11. Therefore, backwashing pipe 51 and pumping sewage pipe 22 can share the same pipe. As a single pipe, they can be used to either backwash to siphon pipe 11 or discharge sewage to condenser outlet side 2.

[0060] The backwash pipe 51 allows the water pressure provided by the water pump 4 to backwash the siphon passage 10, preventing the siphon passage 10 from becoming clogged.

[0061] Example 9 In this embodiment, the inlet end of the water pump 4 is provided with a filter 6, and the pump suction pipe 21 is connected to the water pump 4 through the filter 6. The filter 6 is provided with a backwashing mechanism, which realizes the function of automatically backwashing the filter screen. The backwashing mechanism includes a filter discharge pipe 61, which is connected to the condenser outlet side 2 to realize the discharge of backwashing.

[0062] The filter 6 prevents the water pump 4 from becoming clogged due to dirt.

[0063] Example 10 In this embodiment, the inlet end of the water pump 4 is connected to a backup water source pipe 71; the backup water source pipe 71 can provide backwash water to the water pump 4 and the backwash pipe 51 to realize the backwashing of the siphon passage 10; the backup water source pipe 71 can provide flushing water to the water pump 4 and the flushing passage 40 to realize flushing and cleaning; the backup water source pipe 71 can be connected to the fire water pipe in the plant as a water source.

[0064] Through the backup water supply pipeline 71, a backup water source can be provided to the water pump 4 for flushing, cleaning and backwashing in special circumstances such as maintenance.

[0065] According to the above embodiments, this application also includes a cleaning method based on the above-described condenser cleaning system, specifically including a suction stage and a rinsing stage: During the suction process, the cleaning robot 3 moves within the condenser inlet water chamber 1, performing area-by-area suction and cleaning at the condenser heat exchange tube inlets, and discharging wastewater towards the condenser outlet water side 2. The cleaning robot 3 selects to connect the siphon passage 10 and the pump suction passage 20 based on the pressure difference between the condenser inlet and outlet water sides: when there is a sufficient pressure difference, the cleaning robot 3 connects the siphon passage 10 to perform suction and discharge of wastewater through the pressure difference; when the pressure difference is insufficient, the cleaning robot 3 connects the pump suction passage 20 to perform suction and discharge of wastewater through the water pump 4. During the flushing process, the outlet of the water pump 4 is connected to the cleaning robot 3 through the flushing passage 40 to provide flushing medium to the cleaning robot 3, so that the cleaning robot 3 can perform regional flushing and cleaning of the condenser heat exchange tubes and tube sheets when it moves in the condenser inlet water chamber 1.

[0066] In the rinsing process, two sets of cleaning robots 3 perform suction cleaning and rinsing cleaning respectively: the two sets of cleaning robots 3 are connected to the inlet and outlet of the same water pump 4 through the pump suction passage 20 and the rinsing passage 40 respectively. After completing the pump suction and rinsing cleaning operations, the two sets of cleaning robots 3 switch operations.

[0067] During the suction and rinsing stages, when the cleaning robot 3 reaches the bottom of the condenser inlet water chamber 1, the bottom suction mechanism 5 performs bottom suction to remove the impurities deposited at the bottom of the condenser inlet water chamber 1.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A condenser cleaning system with suction and flushing functions, characterized in that, The system includes a cleaning robot (3), which is installed in the condenser inlet water chamber (1). The cleaning robot (3) includes a main pipe (35) and a robotic arm (36). The main pipe (35) is provided with a suction port (31) and a section of suction channel (32). The robotic arm (36) is provided with another section of the suction channel (32). The suction port (31) is used to perform suction cleaning of the condenser heat exchange tube inlet in sections. The suction channel (32) is used to discharge sewage from the suction port (31) to the outside of the condenser inlet water chamber (1).

2. The condenser cleaning system with suction and flushing functions according to claim 1, characterized in that, The condenser cleaning system also includes a siphon pipe (11), and the suction channel (32) is connected to the condenser outlet side (2) through the siphon pipe (11). The suction port (31), the suction channel (32) and the siphon pipe (11) form a siphon passage (10) on both sides of the condenser inlet and outlet. The siphon passage (10) is used to perform the suction cleaning through the pressure difference between the condenser inlet and outlet sides and to discharge sewage to the condenser outlet side (2).

3. The condenser cleaning system with suction and flushing functions according to claim 2, characterized in that, The condenser cleaning system also includes a water pump (4), a pump suction pipe (21), and a pump discharge pipe (22). The suction channel (32) is connected to the water pump (4) through the pump suction pipe (21). The water pump (4) is connected to the condenser outlet side (2) through the pump discharge pipe (22). The suction port (31), the suction channel (32), the pump suction pipe (21), the water pump (4), and the pump discharge pipe (22) form a pump suction passage (20). The pump suction passage (20) is used to perform suction cleaning by the water pump (4) when the pressure difference between the inlet and outlet sides of the condenser is insufficient, and to discharge sewage to the condenser outlet side (2).

4. The condenser cleaning system with suction and flushing functions according to claim 3, characterized in that, The condenser cleaning system also includes a pumping flushing pipe (41), and the cleaning robot (3) also includes a spray nozzle (33) and a spray channel (34). The spray nozzle (33) faces the condenser heat exchange tube inlet and tube sheet. The water pump (4), the pumping flushing pipe (41), the spray channel (34) and the spray nozzle (33) form a flushing passage (40). The flushing passage (40) is used for flushing and cleaning by the water pump (4).

5. The condenser cleaning system with suction and flushing functions according to claim 4, characterized in that, The condenser cleaning system includes two sets of cleaning robots (3), which share a single water pump (4). The single water pump (4) enables the two sets of cleaning robots (3) to perform suction cleaning and flushing cleaning respectively.

6. The condenser cleaning system with suction and flushing functions according to claim 2, 3, 4, or 5, characterized in that, The minimum flow size of the suction port (31) is set to prevent the suction port (31) from being blocked during the suction process. The minimum flow size of the suction channel (32) is greater than or equal to the minimum flow size of the suction port (31). The minimum flow size of the siphon pipe (11) is greater than or equal to the minimum flow size of the suction channel (32).

7. The condenser cleaning system with suction and flushing functions according to claim 2, 3, 4, or 5, characterized in that, The condenser cleaning system also includes a bottom suction mechanism (5), which is located at the bottom of the condenser inlet water chamber (1) and is used to drain the impurities deposited at the bottom of the condenser inlet water chamber (1).

8. The condenser cleaning system with suction and flushing functions according to claim 3, 4, or 5, characterized in that, The condenser cleaning system also includes a backwash pipe (51), the outlet end of the water pump (4) is connected to the siphon pipe (11) through the backwash pipe (51) for backwashing the siphon passage (10) by the water pump (4).

9. The condenser cleaning system with suction and flushing functions according to claim 3, 4, or 5, characterized in that, The inlet end of the water pump (4) is provided with a filter (6), and the pump suction pipe (21) is connected to the water pump (4) through the filter (6). The filter (6) is provided with a backwashing mechanism, which includes a filter discharge pipe (61) and is connected to the condenser outlet side (2).

10. The condenser cleaning system with suction and flushing functions according to claim 4 or 5, characterized in that, The inlet end of the water pump (4) is connected to a backup water source pipeline (71).

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