A precise targeted cleaning device for a condenser

Abstract

The utility model discloses a condenser precision targeting cleaning device, including two cleaning cover boxes of symmetry fixed in the both sides of condenser heat exchange tube bundle, water storage bucket, the circulating water pump of connecting in the left side of water storage bucket, the circulating water pump and one of cleaning cover boxes between and water storage bucket and another cleaning cover box between all are connected with the hose, set up the fixed top lead screw between cleaning cover box and condenser shell inner wall, the utility model discloses a series of innovative design, completely subverted traditional "extensive type's " cleaning mode, on the cleaning mode, the square sealing box of first creation and precision targeting mechanism realized from "extensive big circulation " to " microcosmic precision targeting " fundamental change, can accurate locking scale tube bundle, makes cleaning operation " points which hit which", can save the amount of cleaning fluid, greatly reduced the cleaning cost, and reduced environmental pollution from the source simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of condenser heat exchanger tube bundle cleaning technology, specifically relating to a condenser precision targeted cleaning device. Background Technology

[0002] As a key piece of equipment in thermal power plants and other thermal systems, the operating efficiency of the condenser directly affects the performance and energy consumption of the entire system. During long-term operation, scale inevitably forms on the inner wall of the condenser tube bundle due to factors such as water quality and temperature. This scale will significantly reduce the heat exchange efficiency of the condenser, increase energy consumption, and may even cause equipment failure, affecting the safe and stable operation of the system. Therefore, regularly cleaning the condenser tube bundle to remove scale and restore its heat exchange performance is an important measure to ensure the efficient and safe operation of the thermal system.

[0003] Currently, the widely used condenser cleaning method mainly involves closing the condenser water-side inlet and outlet valves and performing large-scale circulation flushing. However, this traditional "extensive" cleaning mode has several significant drawbacks: First, it is essentially an "indiscriminate" attack, unable to distinguish between clean and scaled tube bundles. During the cleaning process, a large amount of cleaning fluid and energy is wasted on repeatedly flushing clean areas, resulting in extremely low cleaning efficiency. Simultaneously, a large amount of cleaning fluid may cause unnecessary corrosion to the inner walls of non-scaled tube bundles, shortening their lifespan and increasing maintenance costs. Second, traditional methods require isolating the entire condenser water side from the system, making the operation complex and cumbersome. Furthermore, for large systems, the reliability of the seal is at significant risk; if the seal fails, it will not only affect the cleaning effect but may also damage the system. Moreover, traditional cleaning methods... The traditional cleaning method is a complete "black box" process. Operators cannot understand the scaling and cleaning effect inside the tube bundle in real time and can only set the cleaning time based on experience. This can easily lead to insufficient or excessive cleaning. Insufficient cleaning will result in scale residue and affect the cleaning effect; while excessive cleaning may damage the tube bundle and further shorten its service life. In addition, traditional large-circulation flushing also has the risk of "air resistance". Air accumulates in the system and forms "dry areas" and cleaning dead corners, affecting the circulation of cleaning fluid and the cleaning effect. At the same time, traditional cleaning methods lack scientific and effective management of the circulation and recovery of cleaning fluid. The cleaning fluid is often directly discharged after use, which not only wastes resources but also pollutes the environment and does not meet the increasingly stringent environmental protection regulations. Therefore, this utility model proposes a precise targeted cleaning device for condensers. Utility Model Content

[0004] The purpose of this invention is to provide a precise targeted cleaning device for condensers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a condenser precision targeted cleaning device, comprising...

[0006] Two cleaning hoods are symmetrically fixed on both sides of the condenser heat exchanger tube bundle.

[0007] A water storage tank, a circulating water pump connected to the left side of the water storage tank, and hoses are connected between the circulating water pump and one of the cleaning hoods and between the water storage tank and the other cleaning hood.

[0008] A fixing screw is installed between the cleaning hood and the inner wall of the condenser shell.

[0009] Preferably, the fixed top screw includes a screw, a threaded sleeve, and a hexagonal block. The threaded sleeve is fixed to the side of the cleaning hood box. One end of the screw is threaded into the threaded sleeve, and the other end of the screw is rotatably mounted with a stop plate via a bearing, and the stop plate abuts against the inner wall of the condenser shell.

[0010] Preferably, a hexagonal block is fixed to the surface of the lead screw on one side relative to the threaded sleeve.

[0011] Preferably, it also includes a U-shaped groove formed on the opening surface of the cleaning hood box, wherein a U-shaped sealing ring that abuts against the condenser heat exchange tube bundle is embedded in the U-shaped groove.

[0012] Preferably, the side of the U-shaped sealing ring is provided with multiple integrated L-shaped locking blocks, and the inner wall of the U-shaped groove is provided with multiple L-shaped slots for the L-shaped locking blocks to be inserted.

[0013] Preferably, the top of the cleaning cover box is also symmetrically fixed with two lifting lugs.

[0014] Preferably, the top of the cleaning hood is provided with a vent pipe that communicates with the inside of the cleaning hood, and a vent valve is installed on the vent pipe. The front surface of the cleaning hood is also provided with an observation port.

[0015] Preferably, the inlet of the circulating water pump is inserted into the water storage tank, the outlet of the circulating water pump is connected to the interface at the bottom of one of the cleaning hoods via a hose, and the interface at the top of the other cleaning hood is connected to the water storage tank via a hose.

[0016] Compared with existing technologies, the beneficial effects of this utility model are as follows: This utility model, through a series of innovative designs, completely overturns the traditional "extensive" cleaning mode. In terms of cleaning mode, the pioneering square sealing box and precise targeting mechanism achieve a fundamental transformation from "extensive circulation" to "microscopic precise targeting," accurately locking onto scaled tube bundles, making cleaning operations "targeted," saving cleaning fluid consumption, greatly reducing cleaning costs, and simultaneously reducing environmental pollution from the source, making it more environmentally friendly. Regarding fixing and sealing technology, the combination of mechanical fixing with a set screw and flexible sealing with a sealing strip, as well as symmetrical fixing and circulation loop design, achieves a transformation from "system isolation" to "in-system" sealing. The structural innovation of "line-fixed-point sealing" ensures the stable fixation of the square box and efficient local sealing under complex working conditions, improving sealing reliability. The constructed independent micro-circulation loop enables the cleaning fluid to form high-velocity turbulence within the target tube bundle, significantly improving the kinetic energy for removing dirt and the efficiency of the descaling agent. In terms of monitoring the cleaning process, the observation port design achieves revolutionary transparency from "black box operation" to "visual and controllable" operation. Operators can observe the cleaning process and detachment status in real time and intuitively, and adjust the cleaning parameters in real time based on the observation results, ensuring that the best cleaning effect is achieved while maximizing resource and time savings and eliminating the risk of tube bundle damage caused by over-cleaning. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the connection between the cleaning hood and the condenser heat exchange tube bundle of this utility model.

[0019] Figure 3 This is a cross-sectional view of the fixing screw rod of this utility model;

[0020] Figure 4 This utility model Figure 2 A magnified view of a portion of region A in the middle;

[0021] Figure 5 This is a side view of the U-shaped sealing ring of this utility model;

[0022] In the diagram: 1. Cleaning hood; 11. Observation port; 12. Lifting lug; 13. Vent valve; 14. U-shaped sealing ring; 141. L-shaped locking block; 15. U-shaped groove; 151. L-shaped slot; 2. Fixed top screw rod; 21. Screw rod; 22. Threaded sleeve; 23. Hexagonal block; 3. Water storage tank; 4. Circulating water pump; 5. Hose; 6. Condenser heat exchanger tube bundle; 7. Condenser outer shell inner wall. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Please see Figures 1 to 5 This is an embodiment of the present utility model, which provides the following technical solution: a condenser precision targeted cleaning device, comprising...

[0026] Two cleaning hoods 1 are symmetrically fixed on both sides of the condenser heat exchange tube bundle 6. The symmetrical design allows one cleaning hood 1 to spray water towards the condenser heat exchange tube bundle 6, while the other cleaning hood 1 receives the water and then flows through the hose 5 into the water storage tank 3, and is circulated and cleaned by the circulating water pump 4.

[0027] Water storage tank 3, circulating water pump 4 connected to the left side of water storage tank 3, and hoses 5 are connected between circulating water pump 4 and one of the cleaning hood boxes 1 and between water storage tank 3 and the other cleaning hood box 1.

[0028] A fixing screw 2, positioned between the cleaning cover box 1 and the inner wall 7 of the condenser shell, is used to press the cleaning cover box 1 against the side of the condenser heat exchange tube bundle 6, ensuring that the cleaning cover box 1 is firmly fixed and stable under flushing pressure. It also allows for easy adjustment of the position of the cleaning cover box 1, ensuring that it can be sealed tightly against specific scaled areas of the condenser heat exchange tube bundle 6, achieving precise cleaning. This enables targeted operation, allowing for precise cleaning wherever needed. Because the cleaning range is strictly limited, this device can save up to 70%-90% of the cleaning fluid usage, significantly reducing cleaning costs. Furthermore, it avoids the ineffective circulation of large amounts of cleaning fluid in the system, reducing environmental pollution at the source and making it more environmentally friendly.

[0029] In this embodiment, preferably, the fixing screw 2 includes a screw 21, a threaded sleeve 22, and a hexagonal block 23. The threaded sleeve 22 is fixed to the side of the cleaning hood box 1. One end of the screw 21 is threaded into the threaded sleeve 22. The other end of the screw 21 is rotatably mounted with a backing plate through a bearing, and the backing plate abuts against the inner wall 7 of the condenser shell. The rotation of the screw 21 can apply a horizontal pushing force to the cleaning hood box 1, so that the cleaning hood box 1 can be tightly sealed against the condenser heat exchange tube bundle 6.

[0030] In this embodiment, preferably, a hexagonal block 23 is welded and fixed to the surface of the lead screw 21 on the side opposite to the threaded sleeve 22, so that the operator can rotate and turn the lead screw 21 with a wrench.

[0031] In this embodiment, preferably, it also includes a U-shaped groove 15 formed on the opening surface of the cleaning hood box 1. A U-shaped sealing ring 14 is embedded in the U-shaped groove 15 and is installed to abut against the condenser heat exchange tube bundle 6, so that when the cleaning hood box 1 is pressed against the condenser heat exchange tube bundle 6 by the fixing screw 2, the U-shaped sealing ring 14 can play an effective sealing role.

[0032] In this embodiment, preferably, the side of the U-shaped sealing ring 14 is provided with a plurality of integrated L-shaped locking blocks 141, both of which are made of fluororubber material and will undergo elastic deformation when squeezed. The inner wall of the U-shaped groove 15 is provided with a plurality of L-shaped slots 151 for the L-shaped locking blocks 141 to be inserted, so that the U-shaped sealing ring 14 can be stably installed in the U-shaped groove 15, ensuring installation stability and preventing the U-shaped sealing ring 14 from falling off unnecessarily.

[0033] In this embodiment, preferably, two lifting lugs 12 are symmetrically welded and fixed to the top of the cleaning cover box 1 for hanging ropes from the outside.

[0034] In this embodiment, preferably, the top of the cleaning hood 1 is also provided with a vent pipe communicating with the inside of the cleaning hood 1, and a vent valve 13 is installed on the vent pipe for venting the inside of the cleaning hood 1 during subsequent flushing. This conforms to the principles of fluid dynamics, facilitates the complete discharge of air, ensures that the cleaning fluid can fill the entire circuit and circulate smoothly, and eliminates "dry areas" and cleaning dead corners caused by air blockage. The front surface of the cleaning hood 1 is also provided with an observation port 11, which gives the operator "see-through" ability, allowing them to observe the state of the cleaning fluid inside the cleaning hood 1 in real time and intuitively, and judge the cleaning process and detachment of scale in the condenser heat exchange tube bundle 6. This function transforms cleaning from "blind operation" that relies on experience to "precise control" based on real-time feedback. The operator can adjust parameters such as cleaning time, cleaning fluid concentration, or flow rate in real time according to the observation results, ensuring that the best cleaning effect is achieved while maximizing the saving of resources and time, and eliminating the risk of tube bundle damage caused by over-cleaning.

[0035] In this embodiment, preferably, the inlet end of the circulating water pump 4 is inserted into the water storage tank 3, so that when the circulating water pump 4 is running, it can draw out the liquid inside the water storage tank 3 and send it into the cleaning hood box 1 through the hose 5. The outlet end of the circulating water pump 4 is connected to the interface at the bottom of one of the cleaning hood boxes 1 through the hose 5, and the interface at the top of the other cleaning hood box 1 is connected to the water storage tank 3 through the hose 5. This design of the two cleaning hood boxes 1 with the inlet and outlet at opposite ends ensures that the cleaning liquid can be circulated and collected smoothly.

[0036] In summary, when using this device, firstly, the two cleaning hoods 1 are symmetrically fixed to the condenser heat exchanger tube bundle 6 where specific scaling occurs, using the fixing screws 2, ensuring that the two cleaning hoods 1 are symmetrical. Then, the left cleaning hood 1 is connected to the circulating water pump 4 via a hose 5, and the right cleaning hood 1 is connected to the water storage tank 3 via a hose 5, forming a circulating water path. Then, descaling agent is added to the water storage tank 3, and the circulating water pump 4 is started for circulating flushing, so that the cleaning liquid in the water storage tank 3 can be drawn into the left cleaning hood 1 by the circulating water pump 4 and flushed towards the condenser heat exchanger tube bundle 6, and then from the other side of the condenser heat exchanger tube bundle 6... One end flows into the cleaning hood 1 on the right, and finally returns to the water storage tank 3 through the hose 5 for circulation rinsing, creating an independent and efficient micro-circulation loop. This design allows the cleaning fluid to form a high-velocity turbulent flow within the target tube bundle, significantly improving the kinetic energy for removing dirt and the efficiency of the descaling agent. This device achieves closed-loop management of the entire process from injection and circulation to recycling. The used cleaning fluid is collected in the water storage tank 3 for professional environmental treatment. This measure not only completely solves the environmental problems of chemical cleaning in power plants, but also meets the increasingly stringent environmental regulations, achieving a balance between economic and environmental benefits.

[0037] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A condenser precision targeted cleaning device, characterized in that: include Two cleaning hoods (1) are symmetrically fixed on both sides of the heat exchange tube bundle (6) of the condenser; Water storage tank (3), circulating water pump (4) connected to the left side of water storage tank (3), and hoses (5) are connected between the circulating water pump (4) and one of the cleaning hoods (1) and between the water storage tank (3) and the other cleaning hood (1). A fixed top screw (2) is installed between the cleaning hood box (1) and the inner wall (7) of the condenser shell.

2. The condenser precision targeted cleaning device according to claim 1, characterized in that: The fixed top screw (2) includes a screw (21), a threaded sleeve (22) and a hexagonal block (23). The threaded sleeve (22) is fixed to the side of the cleaning hood (1). One end of the screw (21) is screwed into the threaded sleeve (22). The other end of the screw (21) is rotatably mounted with a backing plate through a bearing, and the backing plate abuts against the inner wall (7) of the condenser shell.

3. The condenser precision targeted cleaning device according to claim 2, characterized in that: A hexagonal block (23) is also fixed to one side of the lead screw (21) relative to the threaded sleeve (22).

4. The condenser precision targeted cleaning device according to claim 1, characterized in that: It also includes a U-shaped groove (15) opened on the opening surface of the cleaning hood box (1), and a U-shaped sealing ring (14) that abuts against the heat exchange tube bundle (6) of the condenser is embedded in the U-shaped groove (15).

5. The condenser precision targeted cleaning device according to claim 4, characterized in that: The side of the U-shaped sealing ring (14) is provided with multiple integrated L-shaped blocks (141), and the inner wall of the U-shaped groove (15) is provided with multiple L-shaped slots (151) for the L-shaped blocks (141) to be inserted.

6. The condenser precision targeted cleaning device according to claim 1, characterized in that: The top of the cleaning cover (1) is also symmetrically fixed with two hanging lugs (12).

7. The condenser precision targeted cleaning device according to claim 1, characterized in that: The top of the cleaning hood (1) is also provided with a vent pipe that communicates with the inside of the cleaning hood (1), and a vent valve (13) is installed on the vent pipe. The front surface of the cleaning hood (1) is also provided with an observation port (11).

8. The condenser precision targeted cleaning device according to claim 1, characterized in that: The inlet of the circulating water pump (4) is inserted into the water storage tank (3). The outlet of the circulating water pump (4) is connected to the interface at the bottom of one of the cleaning hoods (1) through a hose (5). The interface at the top of the other cleaning hood (1) is connected to the water storage tank (3) through a hose (5).

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