Pipe hole positioning equipment and method for condenser heat transfer pipe on-line cleaning equipment

Abstract

The invention relates to the technical field of condenser on-line cleaning, in particular to condenser heat transfer tube on-line cleaning equipment tube hole positioning equipment which comprises two sets of cleaning mechanisms, two cross arm sliding table mechanisms distributed up and down and used for installing the two sets of cleaning mechanisms respectively, and two cross arm sliding table mechanisms distributed up and down and used for installing the two sets of cleaning mechanisms respectively. The two stand column push rod mechanisms are arranged in the condenser, and the two stand column push rod mechanisms and the two cross arm sliding table mechanisms are arranged in a # shape. And the water pipe connecting rod mechanism is used for providing a water source for the cleaning mechanism and moves along with the cross arm sliding table mechanism. The number of high-pressure water cleaning nozzles is reduced, and it is guaranteed that each cleaning nozzle has enough cleaning pressure and flow; the moving dimension of the high-pressure water spray head is increased through the sliding table motor on the cross arm, the cleaning coverage rate is guaranteed by combining up-down movement of the cross arm, and cleaning dead angles are greatly reduced; and double cross arms on the cross arm sliding table mechanism are adopted, so that the cleaning time is shortened, and the cleaning efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of condenser online cleaning, and in particular to a tube hole positioning device and method for online cleaning equipment of a condenser heat transfer tube. Background Art

[0002] Condenser fouling has long been a problem for the economic, environmental and safe operation of coal-fired power units.

[0003] The condenser is the core heat exchange equipment of the thermal power unit. It plays the role of cold source in the thermal cycle. The quality of its working performance directly affects the power generation efficiency and coal consumption of the power plant. The interior of the condenser is mainly composed of a large number of heat transfer tubes, tube sheets and water chambers. Due to the quality of cooling water, dirt will inevitably form on the inner wall of the condenser heat transfer tube during actual operation, forming dirt thermal resistance. The long-term existence of dirt in the condenser heat transfer tube will lead to a decrease in the thermal conductivity of the heat transfer tube and an increase in thermal resistance, which will further deteriorate the condenser vacuum and reduce the efficiency of the steam turbine, resulting in an increase in coal consumption for power generation. At the same time, the dirt in the condenser heat transfer tube causes a decrease in the cooling water flow area, an increase in flow resistance, an increase in the condenser circulating water pressure loss and the power consumption of the circulating water pump, resulting in an increase in the power consumption rate. The further accumulation of dirt in the condenser heat transfer tube will cause corrosion or even leakage of the heat transfer tube, which will not only seriously affect the service life of the heat transfer tube, but also cause a loss of power generation hours and a reduction in the unit utilization rate due to shutdown for leak detection.

[0004] Condenser fouling can be roughly divided into two categories: hard scale and soft scale. The main components of hard scale are inorganic scale such as calcium carbonate and magnesium carbonate; the main components of soft scale are biological slime, corrosion products and sludge.

[0005] According to the survey, soft scale such as biological slime is the main reason for the decline in condenser cleanliness. Biological slime has the characteristic of rapid formation. A study shows that after cleaning the condenser heat transfer tube for one week, the biological slime causes the actual heat transfer coefficient of the heat transfer tube to drop from 2.93kW / (m 2 ℃) is reduced to 1.98kW / (m 2 ℃). Such a fast fouling rate and low heat transfer efficiency cause the condenser to operate inefficiently for a long time. Therefore, in order to ensure the safe, environmentally friendly and economical operation of the entire unit, reasonable cleaning technology must be adopted to promptly and effectively remove the dirt on the inner wall of the condenser heat transfer tube.

[0006] At present, some companies have developed corresponding products for online cleaning of condenser heat transfer tubes, but there are problems in actual application. Among them, a certain type of condenser online cleaning equipment fixes hundreds of nozzles on a horizontal arm, and the horizontal arm moves up and down along the column to clean the condenser. This solution has a large number of nozzles, resulting in insufficient flow and water pressure of a single nozzle, and the cleaning effect cannot be guaranteed; the position of the nozzle on the horizontal arm is fixed and can only move up and down, and the dead corners on the left and right sides of the condenser cannot be guaranteed to be well cleaned; another type of condenser online cleaning equipment fixes the nozzle on two rotating arms, and the rotating arms are fixed on a column. The two rotating arms rotate two-dimensionally on the area to be cleaned to clean the condenser. This solution can achieve better cleaning of the cleaning area, but due to the radius limit of the rotating arm, there will always be dead corners that cannot be thoroughly cleaned during the cleaning process, causing local dirt accumulation.

[0007] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Summary of the invention

[0008] The object of the present invention is to solve the above-mentioned deficiencies and provide a tube hole positioning device and method for online cleaning equipment of condenser heat transfer tubes.

[0009] In order to solve the above technical problems, the present invention adopts the following technical solution: a tube hole positioning device for online cleaning equipment of condenser heat transfer tubes, including two groups of cleaning mechanisms for cleaning condenser heat transfer tube sheets, each group of the cleaning mechanisms including two cleaning components, and also including:

[0010] Two horizontal arm slide mechanisms are provided, which are distributed up and down and are used to install two groups of the cleaning mechanisms respectively, and drive the two groups of the cleaning mechanisms to move back and forth in the horizontal direction;

[0011] There are two column push rod mechanisms, which are arranged in the condenser and are arranged in a "well" shape with the two cross arm slide mechanisms, and are used to drive the two cross arm slide mechanisms to move back and forth vertically;

[0012] The water pipe connecting rod mechanism connects the water inlet ends of the two groups of the cleaning mechanisms, is used to provide water to the cleaning mechanisms and moves with the cross arm slide mechanism.

[0013] Furthermore, the cross arm slide mechanism includes a slide that is symmetrical on both sides and has two corresponding cleaning components installed thereon, and a cross arm slidably arranged on the slide, and a driving unit for driving the corresponding slide to slide is arranged between the two cross arms.

[0014] Furthermore, the driving unit is composed of a slide motor and a worm gear box, and the worm gear inside the worm gear box is provided with a lead screw;

[0015] A push rod 1 is arranged outside the screw rod, and the push rod 1 drives the slide table to move laterally on the corresponding cross arm.

[0016] Furthermore, the column push rod mechanism comprises:

[0017] There are two pulleys, which are respectively fixed to the upper and lower cross arms distributed on one side;

[0018] A cross arm connecting rod, arranged between the two slideways;

[0019] A column, arranged vertically and slidably arranged with the two pulleys;

[0020] Push rod 2, fixedly arranged on the pulley below;

[0021] The push rod motor is arranged at the top end of the push rod 2 and drives the push rod 2 to telescopically move in the vertical direction.

[0022] Furthermore, the cleaning component includes a cleaning nozzle arranged on the corresponding slide, and a water inlet joint arranged on the back of the slide and connected to the cleaning nozzle.

[0023] Furthermore, the water pipe connecting rod mechanism includes a tee joint A and a tee joint B which are connected to the corresponding two water inlet joints respectively. A vertical pipe is arranged between the tee joint A and the tee joint B, and a connecting rod unit is arranged on the vertical pipe near the tee joint B.

[0024] Furthermore, the connecting rod unit is composed of a plurality of rigid pipes and adjacent rigid pipes assembled using corresponding flanges, and a rotating joint structure is provided between the flanges fixed on two adjacent rigid pipes.

[0025] A method for positioning a tube hole of an online cleaning device for a condenser heat transfer tube, used in the tube hole positioning device for the online cleaning device for a condenser heat transfer tube, comprises the following steps:

[0026] S1, Equipment installation and commissioning:

[0027] Install the equipment in the condenser through the column formed on the column push rod mechanism, connect the pipes, cables and other components required for work, and perform inspection and testing after installation to verify the functionality of the control function and high-pressure water source and other components;

[0028] S2, device confirmation:

[0029] Confirm that the working environment meets the requirements and operate the upper computer mobile tablet or workbench to control the equipment;

[0030] S3, device startup:

[0031] Start the cleaning nozzle, submerge the water jet to start cleaning the dirt on the condenser tube plate, control the slide motor included in the drive unit to drive the worm gear box to drive the slide to move horizontally on the cross arm, so that the cleaning nozzle moves horizontally left and right to clean the current height, and then start the push rod motor to drive the entire cross arm slide mechanism to move downward in the vertical direction, wherein the water pipe connecting rod mechanism will move together with the cross arm slide mechanism;

[0032] S4, repeating step S3, wherein the slide motor included in the control drive unit drives the worm gear box to drive the slide to move laterally on the cross arm, so as to complete the tube sheet dirt removal at the current height through the high-pressure water cleaning nozzle;

[0033] S5, looping the above steps S3 and S4 to complete the comprehensive cleaning of the condenser;

[0034] S6, disconnect the high-pressure water supply to the equipment;

[0035] S7, check all parts of the cleaning equipment, and operate the host computer to move the flat plate or workbench to reset the moving parts of the equipment.

[0036] Compared with the prior art, the present invention has the following beneficial effects: the present invention increases the moving dimension of the high-pressure water nozzle by using the slide motor on the cross arm through the provision of the cross arm slide mechanism and the column push rod mechanism, and ensures the cleaning coverage rate in combination with the up and down movement of the cross arm, greatly reducing the cleaning dead angle; and adopts the double cross arm included in the cross arm slide mechanism to reduce the cleaning time, further improve the cleaning efficiency, thereby achieving a comprehensive cleaning effect on the condenser; and also through the provision of the water pipe connecting rod mechanism, the rigid pipe used in the mechanism reduces the number of high-pressure water cleaning nozzles while ensuring that each cleaning nozzle has sufficient cleaning pressure and flow, solves the problem of high-pressure impact damage of traditional hoses during cleaning, and helps to extend the service life; and a rotatable joint structure installed between the flanges corresponding to the two rigid pipes makes the connecting rod unit a three-degree-of-freedom connecting rod, which can move with the cross arm, thereby realizing the convenience of arbitrary movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0038] Figure 1 A three-dimensional structural diagram of an overall perspective of an embodiment of the present invention;

[0039] Figure 2 A three-dimensional structural diagram of a cross arm slide mechanism from one perspective of an embodiment of the present invention;

[0040] Figure 3A three-dimensional structural diagram of a column push rod mechanism according to an embodiment of the present invention from one perspective;

[0041] Figure 4 A three-dimensional structural diagram of a water pipe connecting rod mechanism according to an embodiment of the present invention from one perspective;

[0042] Figure 5 It is a three-dimensional structural diagram of an embodiment of the present invention which is integrally assembled on a water chamber and a tube sheet;

[0043] Figure 6 This is a cross-sectional structural diagram of the internal connection of a connecting rod unit according to an embodiment of the present invention.

[0044] In the figure: 1. cleaning mechanism; 101. cleaning nozzle; 102. water inlet joint; 2. cross arm slide mechanism; 201. slide; 202. cross arm; 203. drive unit; 204. screw; 3. column push rod mechanism; 301. pulley; 302. cross arm connecting rod; 303. column; 304. push rod 2; 3041. push rod motor; 4. water pipe connecting rod mechanism; 401. three-way joint A; 402. three-way joint B; 403. vertical pipe; 404. connecting rod unit. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0046] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0047] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] like Figure 1-6 As shown, the present invention provides a tube hole positioning device, which is applied to an online cleaning device for a condenser heat transfer tube, and includes two groups of cleaning mechanisms 1 for cleaning a condenser heat transfer tube sheet, each group of the cleaning mechanisms 1 includes two cleaning components, and also includes:

[0049] Two cross-arm slide mechanisms 2 are arranged vertically and respectively used to install two groups of the cleaning mechanisms 1 and drive the two groups of the cleaning mechanisms 1 to reciprocate in the horizontal direction;

[0050] Two column push rod mechanisms 3 are arranged in the condenser, and are arranged in a "well" shape with the two cross arm slide mechanisms 2, and are used to drive the two cross arm slide mechanisms 2 to move back and forth vertically;

[0051] The water pipe connecting rod mechanism 4 connects the water inlet ends of the two groups of the cleaning mechanisms 1 and is used to provide water to the cleaning mechanisms 1 and move with the cross arm slide mechanism 2.

[0052] In the specific implementation, the column push rod mechanism 3 is installed on both sides of the condenser heat transfer tube plate, which can play a supporting, guiding and connecting role, and the cross arm slide mechanism 2 is installed on the pulley 301 included in the column push rod mechanism 3. When driven by external force, it will drive the cross arm slide mechanism 2 to move up and down along the vertical direction of the column push rod mechanism 3. The two groups of cleaning mechanisms 1 symmetrically installed on the cross arm slide mechanism 2 will pass through the water chamber through the water pipe connecting rod mechanism 4 and be welded to the water chamber. The inside of the pipe is hollow, and cleaning water and cables are passed into it; and the cross arm slide mechanism 2 is used to increase the moving dimension of the cleaning mechanism 1, and the up and down movement of the cross arm slide mechanism 2 is combined to ensure the cleaning coverage rate, greatly reducing the cleaning dead corners.

[0053] It should be noted that the cross arm slide mechanism 2 and the column push rod mechanism 3 are distributed in a "well" shape, which realizes the support of the cleaning mechanism 1, making it easy for the cleaning components included in the cleaning mechanism 1 to move to the heat transfer tube opening on the condenser water inlet tube plate for cleaning inside the tube.

[0054] In one embodiment, the cross arm slide mechanism 2 includes a slide 201 that is symmetrical and corresponding to two cleaning components, and a cross arm 202 that is slidably arranged on the slide 201, and a driving unit 203 for driving the corresponding slide 201 to slide is arranged between the two cross arms 202. In this design, through the two slides 201 that are symmetrical and corresponding to two cleaning components, the cross arm 202 that is slidably connected on one side of the slide 201, and the driving unit 203 installed between the two cross arms 202, under the action of the driving unit 203, the slides 201 on both sides can be driven to move laterally on the corresponding cross arms 202, thereby increasing the moving dimension of the cleaning components, and through the double cross arms, the cleaning time is effectively reduced and the cleaning efficiency is improved.

[0055] In one embodiment, the driving unit 203 is composed of a slide motor and a worm gear box, and the worm gear inside the worm gear box is provided with a lead screw 204;

[0056] A push rod 1 is arranged outside the screw rod 204, and the push rod 1 drives the slide 201 to move horizontally on the corresponding cross arm 202. In this design, through the worm connected to the coupling on the output shaft of the slide motor and the worm wheel meshing with the worm, and the screw rod 204 is fixedly sleeved at the center of the worm wheel end face, when the slide motor is started, the worm connected thereto will be driven to rotate, and then the rotational force will be transmitted to the screw rod 204 through the meshing worm wheel, driving the push rod 1 rotating on the screw rod 204 and the slide 201 welded on the push rod 1 to move horizontally on the cross arm 202, so that one slide motor drives two slides 201 and related structures on the slide 201 to move.

[0057] It should be noted that the screw rod 204 is designed with two thread segments with opposite thread directions, which can synchronously drive two sets of slides 201 welded by a push rod to move laterally on the cross arm 202, effectively increasing the moving dimension.

[0058] In one embodiment, the column push rod mechanism 3 includes:

[0059] There are two pulleys 301, which are respectively fixed to the upper and lower cross arms 202 distributed on one side;

[0060] A cross arm connecting rod 302 is arranged between the two pulleys 301;

[0061] A column 303 is vertically arranged and slidably arranged with the two pulleys 301;

[0062] A second push rod 304, fixedly disposed on the pulley 301 below;

[0063] The push rod motor 3041 is arranged at the top of the push rod 2 304 and drives the push rod 2 304 to telescopically move in the vertical direction. With this design, by installing two sets of column push rod mechanisms on both sides of the heat transfer tube plate, starting the push rod motor 3041 will drive the push rod 2 304 and the two pulleys 301 connected to the push rod 2 304 and fixedly connected by bolts of the cross arm connecting rod 302 to move up and down along the vertical direction of the column 303. At the same time, the end faces of the two pulleys 301 installed by bolts at the upper and lower ends of the cross arm connecting rod 302 are also fixed with the corresponding cross arm slide mechanism 2 by bolts, so that the corresponding installed cross arm slide mechanism 2 is driven by the push rod 2 304 to move up and down, effectively increasing the cleaning range and achieving a comprehensive cleaning effect.

[0064] In one embodiment, the cleaning assembly includes a cleaning nozzle 101 disposed on a corresponding slide 201, and a water inlet joint 102 disposed on the back of the slide 201 and connected to the cleaning nozzle 101. With this design, by installing two cleaning nozzles 101 on the end surface of the corresponding slide 201, and connecting the water inlet joint 102 with the conduit on the cleaning nozzle 101, the cleaning nozzle 101 moves with the slide 201, which not only effectively reduces the number of cleaning nozzles 1, but also ensures sufficient cleaning flow for each cleaning nozzle 101 under the drive of the cross arm slide mechanism 2 and the column push rod mechanism 3.

[0065] It should be noted that the cleaning nozzle 101 is a high-pressure water nozzle, and the cleaning method is a submerged water jet cleaning method.

[0066] In one embodiment, the water pipe connecting rod mechanism 4 includes a three-way joint A401 and a three-way joint B402 which are connected to the corresponding two water inlet joints 102 respectively, and a vertical pipe 403 is connected between the three-way joint A401 and the three-way joint B402, and a connecting rod unit 404 is provided on the vertical pipe 403 near the three-way joint B402. In this design, a tee joint A401 or a tee joint B402 is used between the two water inlet joints 102 to be combined and connected with the corresponding cross arm slide assembly included in the cross arm slide mechanism 2, and the remaining unconnected joints on the tee joint A401 and the tee joint B402 are connected to the vertical pipe 403 and the end of the vertical pipe 403 near the tee joint B402 to connect the connecting rod unit 404. At this time, the end of the connecting rod unit 404 away from the vertical pipe 403 passes through the water chamber and is welded to the water chamber. Since the water pipe formed on the water pipe connecting rod mechanism 4 is hollow inside, cleaning water and cables can be introduced.

[0067] It should be noted that the riser 403 is made of rigid material to effectively prevent damage caused by high pressure impact.

[0068] In one embodiment, the connecting rod unit 404 is composed of a plurality of rigid pipes and adjacent rigid pipes assembled using corresponding flanges, and a rotating joint structure is provided between the flanges fixed on the two adjacent rigid pipes. With this design, the rotation between the two adjacent rigid pipes can be realized through the rotating joint structure adopted between the flanges fixed on the two rigid pipes, so that the connecting rod unit 404 formed on the water pipe connecting rod mechanism 4 is a group of three-degree-of-freedom connecting rods, the end of which is connected to the cross arm 202, and is pulled by the cross arm slide mechanism 2 to move together, achieving a follow-up motion effect; and through the rigid pipe formed, the problem of high-pressure impact damage of the traditional hose during cleaning is effectively solved.

[0069] Further, the connecting rod unit 404 uses four rigid pipes, and as Figure 4 The combination is rotated in vertical sequence as shown.

[0070] It should be noted that the rotating joint structure used between the flanges fixed on the two rigid pipes is as follows Figure 6 As shown, the rotating joint structure includes an outer sleeve, a movable sleeve and an inner sleeve which are arranged between flange plates welded on two vertical and adjacent rigid pipes and are rotated and sleeved in sequence from the outside to the inside, wherein flange 1 installed on one side of the outer sleeve is bolted to the flange plate at the end of the corresponding rigid pipe, and flange 2 is installed on the other side of the inner sleeve relative to flange 1, and flange 2 on this side is bolted to the flange plate at the end of the corresponding rigid pipe.

[0071] Furthermore, the thin tubes are installed in the two butted rigid pipes through the rotating joints. This design makes the connecting rod unit 404 a three-degree-of-freedom connecting rod, which can move with the cross arm slide mechanism 2, realizes the convenience of arbitrary movement, ensures high pressure, and effectively solves the problem of hose being damaged by high pressure impact at this stage.

[0072] A method for positioning a tube hole of an online cleaning device for a condenser heat transfer tube, used in the tube hole positioning device for the online cleaning device for a condenser heat transfer tube, comprises the following steps:

[0073] S1, Equipment installation and commissioning:

[0074] The equipment is installed in the condenser through the column 303 formed on the column push rod mechanism 3, and the pipes, cables and other components required for the work are connected. After the installation is completed, inspection and testing are carried out to verify the functionality of the control function and the high-pressure water source and other components;

[0075] S2, device confirmation:

[0076] Confirm that the working environment meets the requirements and operate the upper computer mobile tablet or workbench to control the equipment;

[0077] S3, device startup:

[0078] Start the cleaning nozzle 101, and submerge the water jet to start cleaning the dirt on the condenser tube sheet. Control the slide motor included in the drive unit 203 to drive the worm gear box to drive the slide 201 to move horizontally on the cross arm 202, so that the cleaning nozzle 101 moves horizontally left and right to clean the current height. Then start the push rod motor 3041 to drive the entire cross arm slide mechanism 2 to move downward in the vertical direction, wherein the water pipe connecting rod mechanism 4 will move together with the cross arm slide mechanism 2;

[0079] S4, repeating step S3 to control the slide motor included in the drive unit 203 to drive the worm gear box to drive the slide 201 to move laterally on the cross arm 202, so as to complete the tube sheet dirt removal at the current height through the high-pressure water cleaning nozzle 101;

[0080] S5, looping the above steps S3 and S4 to complete the comprehensive cleaning of the condenser;

[0081] S6, disconnect the high-pressure water supply to the equipment;

[0082] S7, check all parts of the cleaning equipment, and operate the host computer to move the flat plate or workbench to reset the moving parts of the equipment.

[0083] It should be noted that the movement range of the cleaning equipment of this embodiment can be designed through software, which can meet the scanning within the equipment height of 0m-6.6m, the lateral movement range is about 3500mm, the positioning accuracy is ≤±0.5mm, and 100% of the heat transfer tubes can be automatically cleaned with one button. The device body adopts a modular and lightweight design, which is easy to install and disassemble, and the cleaning work can be stopped immediately in abnormal situations. The fastening parts adopt an anti-loosening design to avoid the risk of foreign objects falling off. The surface of the cleaning device is smooth, and the main body material is made of light weight, corrosion-resistant materials with good anti-corrosion properties underwater.

[0084] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

Claims

1. A tube hole positioning device for online cleaning equipment of a condenser heat transfer tube, comprising two groups of cleaning mechanisms (1) for cleaning the tube sheet of a condenser heat transfer tube, each group of the cleaning mechanisms (1) comprising two cleaning components, characterized in that: Also includes: Two horizontal arm slide mechanisms (2) are arranged vertically and respectively used to install two groups of the cleaning mechanisms (1) and drive the two groups of the cleaning mechanisms (1) to move reciprocally in the horizontal direction; Two upright push rod mechanisms (3) are arranged in the condenser and are arranged in a "well" shape with the two horizontal arm slide mechanisms (2), and are used to drive the two horizontal arm slide mechanisms (2) to move back and forth vertically; The water pipe connecting rod mechanism (4) connects the water inlet ends of the two groups of the cleaning mechanisms (1) and is used to provide water to the cleaning mechanisms (1) and to move along with the cross arm slide mechanism (2).

2. The tube hole positioning equipment of the condenser heat transfer tube online cleaning equipment according to claim 1 is characterized by: The cross arm slide mechanism (2) comprises a slide (201) which is symmetrical on both sides and has two cleaning components installed thereon, and a cross arm (202) which is slidably arranged on the slide (201), and a driving unit (203) for driving the corresponding slide (201) to slide is arranged between the two cross arms (202).

3. The tube hole positioning equipment of the condenser heat transfer tube online cleaning equipment according to claim 2, characterized in that: The driving unit (203) is composed of a slide motor and a worm gear box, and the worm gear inside the worm gear box is provided with a lead screw (204); A push rod 1 is arranged outside the screw rod (204), and the push rod 1 drives the slide table (201) to move laterally on the corresponding cross arm (202).

4. The tube hole positioning equipment of the condenser heat transfer tube online cleaning equipment according to claim 2 is characterized in that: The column push rod mechanism (3) comprises: There are two pulleys (301) which are respectively fixedly arranged on the upper and lower cross arms (202) distributed on one side; A cross arm connecting rod (302) is arranged between the two pulleys (301); A column (303) is vertically arranged and slidably arranged with the two pulleys (301); A second push rod (304) is fixedly arranged on the pulley (301) below; The push rod motor (3041) is arranged at the top end of the second push rod (304) and drives the second push rod (304) to telescopically move in the vertical direction.

5. The tube hole positioning equipment of the condenser heat transfer tube online cleaning equipment according to claim 2, characterized in that: The cleaning component comprises a cleaning nozzle (101) arranged on a corresponding slide (201), and a water inlet joint (102) arranged on the back of the slide (201) and connected to the cleaning nozzle (101).

6. The tube hole positioning equipment of the condenser heat transfer tube online cleaning equipment according to claim 5, characterized in that: The water pipe connecting rod mechanism (4) comprises a three-way joint A (401) and a three-way joint B (402) which are connected to two corresponding water inlet joints (102) respectively, and a vertical pipe (403) is arranged between the three-way joint A (401) and the three-way joint B (402), and a connecting rod unit (404) is arranged on a portion of the vertical pipe (403) close to the three-way joint B (402).

7. The tube hole positioning equipment of the condenser heat transfer tube online cleaning equipment according to claim 6, characterized in that: The connecting rod unit (404) is composed of a plurality of rigid pipes and adjacent rigid pipes assembled using corresponding flanges, and a rotating joint structure is arranged between the flanges fixed on two adjacent rigid pipes.

8. A method for positioning a tube hole of an online cleaning device for a condenser heat transfer tube, used in the tube hole positioning device for an online cleaning device for a condenser heat transfer tube as claimed in any one of claims 1 to 7, characterized in that: The following steps are involved: S1, Equipment installation and commissioning: The equipment is installed in the condenser by means of a column (303) formed on the column push rod mechanism (3), and pipes, cables and other components required for the work are connected. After the installation is completed, inspection and testing are performed to verify the functionality of control functions and components such as high-pressure water sources; S2, device confirmation: Confirm that the working environment meets the requirements and operate the upper computer mobile tablet or workbench to control the equipment; S3, device startup: The cleaning nozzle (101) is started, and the water jet begins to clean the dirt on the condenser tube sheet. The slide motor included in the control driving unit (203) drives the worm gear box to drive the slide (201) to move horizontally on the cross arm (202), thereby causing the cleaning nozzle (101) to move horizontally left and right to clean the current height. Subsequently, the push rod motor (3041) is started to drive the entire cross arm slide mechanism (2) to move downward in the vertical direction, wherein the water pipe connecting rod mechanism (4) moves together with the cross arm slide mechanism (2); S4, repeating step S3, wherein the slide motor included in the control drive unit (203) drives the worm gear box to drive the slide (201) to move laterally on the cross arm (202), so as to complete the cleaning of the tube sheet dirt at the current height through the high-pressure water cleaning nozzle (101); S5, looping the above steps S3 and S4 to complete the comprehensive cleaning of the condenser; S6, disconnect the high-pressure water supply to the equipment; S7, check all parts of the cleaning equipment, and operate the host computer to move the flat plate or workbench to reset the moving parts of the equipment.

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