Flushing system for air cooling unit

Abstract

The utility model relates to a flushing system for an air cooling unit, and the flushing system comprises a flushing assembly which is arranged at the upstream of radiating fins and is used for spraying flushing water to clean the radiating fins; the recovery assembly is arranged on the downstream of the heat dissipation fins and comprises a water collection tank used for receiving the flushing water flowing through the heat dissipation fins, and the water collection tank is configured to overflow and discharge the flushing water when the flushing water reaches a preset water level; the filtering assembly is communicated with the downstream of the water collecting tank and is used for receiving and filtering the flushing water discharged from the water collecting tank; and the clarifying assembly is arranged between the filtering assembly and the flushing assembly in a communicating manner and is used for receiving flushing water from the filtering assembly, purifying the flushing water and introducing the purified flushing water to the flushing assembly. And by arranging the recycling assembly and the filtering assembly, flushing water can be recycled, waste of water resources is reduced, and the concept of sustainable development is met. The filtering assembly can effectively remove impurities in the flushing water, the clarifying assembly further purifies the flushing water and then flows back to the flushing assembly, and the cleanliness of the flushing water is ensured.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wastewater recovery for thermal power units, and in particular to a flushing system for air-cooled units. Background Art

[0002] Thermal power plant cooling can generally be categorized as air cooling or water cooling. Air-cooled units are often built in areas with relatively scarce water resources, creating harsh environments and often experiencing blockages. This significantly reduces the cooling effectiveness of the air-cooling fans, leading to reduced turbine efficiency and increased coal consumption. Consequently, the radiator fins in the air-cooling island require frequent online flushing, but the wastewater from these flushing operations is often not properly recycled.

[0003] In existing technologies, flushing water from air-cooled units drifts toward the ground as it falls. Some of this water seeps into the ground, while the remainder flows into wastewater and rainwater wells and returns to wastewater recovery tanks. During this process, 30-40% of this water is lost, resulting in significant water waste. Furthermore, during summer, when heavy rainfall and large-scale water production are occurring simultaneously, this can easily cause the tanks to overflow, and the wastewater flowing outside the plant can pose environmental risks. Utility Model Content

[0004] The purpose of the present disclosure is to provide a flushing system for an air-cooling unit, which can at least partially solve the technical problems existing in the related art.

[0005] In order to achieve the above objectives, the present disclosure provides a flushing system for an air-cooled unit, comprising:

[0006] A flushing assembly, disposed upstream of the radiating fins, for spraying flushing water to clean the radiating fins;

[0007] a recovery assembly, disposed downstream of the radiating fins, and comprising a water collecting tank for receiving the flushing water flowing through the radiating fins, the water collecting tank being configured to discharge the flushing water overflow when the flushing water reaches a preset water level;

[0008] a filter assembly, connected and arranged downstream of the water collecting tank, for receiving and filtering the flushing water discharged from the water collecting tank; and

[0009] The clarification component is arranged between the filtering component and the flushing component, and is used for receiving the flushing water from the filtering component and passing the flushing water to the flushing component after purification.

[0010] Optionally, the recovery component further includes a water collecting trough, the cross-section of the water collecting trough in the vertical direction is a V-shaped structure with the opening facing upward, and one side of the V-shaped structure where the opening is located is connected to the outer edge of the heat dissipation fin.

[0011] Optionally, the cross-section of the water collecting tank in the horizontal direction is a ring structure whose inner contour matches the outer contour of the heat dissipating fins.

[0012] Optionally, the recovery component further includes a first water collecting pipe extending in a vertical direction, a water outlet hole is provided at the bottom end of the V-shaped structure, the top end of the first water collecting pipe is connected to the water outlet hole, and the bottom end of the first water collecting pipe is connected to the water collecting tank.

[0013] Optionally, the recovery component also includes a first water outlet pipe connected between the water collecting tank and the filter component, and the recovery component also includes a second water outlet pipe and a third water outlet pipe connected in parallel between the water collecting tank and the first water outlet pipe, wherein the second water outlet pipe is connected at a preset water level height of the water collecting tank, and the third water outlet pipe is connected at the bottom of the water collecting tank.

[0014] Optionally, the filter assembly includes a plurality of filters arranged in parallel.

[0015] Optionally, the clarification component includes:

[0016] a clarified water tank, connected and arranged downstream of the filter, for settling the flushing water flowing through the filter;

[0017] a clarified water pipe, communicating between the flushing assembly and the clarified water tank; and

[0018] The clarified water pump is arranged on the clarified water pipe and is used for pumping the flushing water in the clarified water tank to the downstream thereof.

[0019] Optionally, a water supply pipe is provided between the clarified water tank and the filter, and the flushing system further comprises a drug delivery device connected in series to the water supply pipe to remove harmful substances in the flushing water flowing through the water supply pipe.

[0020] Optionally, the flushing assembly includes:

[0021] a flushing water tank, connected and arranged upstream of the clarification component, for storing flushing water;

[0022] a flushing pipe, one end of which is connected to the water outlet of the flushing water tank and is used to transport flushing water; and

[0023] A flushing nozzle is arranged at the other end of the flushing pipe and is used for spraying flushing water onto the heat dissipating fins.

[0024] Optionally, the flushing assembly further comprises:

[0025] a flushing pump, disposed on the flushing pipeline; and

[0026] A flushing valve is arranged on the flushing pipeline and located between the flushing pump and the flushing nozzle.

[0027] Through the above technical solution, the installation of the recovery and filtration components allows the flushing water to be recycled and reused, reducing water waste and conforming to the concept of sustainable development. The filtration component effectively removes impurities from the flushing water, which is further purified by the clarification component before being returned to the flushing component, ensuring the cleanliness of the flushing water and improving the overall operating efficiency of the system. This also makes the fin flushing process more efficient, reducing failures and maintenance frequency caused by the accumulation of dirt on the fins, thereby reducing maintenance costs. By recycling water resources and reducing wastewater discharge, the adverse impact of wastewater on the environment is avoided, contributing to the achievement of environmental protection goals.

[0028] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0030] Figure 1 is a diagram showing a usage state of a flushing system for an air-cooling unit provided by an exemplary embodiment of the present disclosure;

[0031] Figure 2 is a partial structural diagram of a flushing system for an air-cooling unit provided by an exemplary embodiment of the present disclosure;

[0032] Figure 3 is a cross-sectional view of a heat dissipation fin and a water collecting tank provided in an exemplary embodiment of the present disclosure.

[0033] Description of Reference Numerals

[0034] 1-Flushing assembly; 11-Flushing water tank; 12-Flushing pipe; 13-Flushing pump; 14-Flushing valve; 2-Recovery assembly; 21-Water collecting tank; 221-First water collecting pipe; 222-Second water collecting pipe; 223-Third water collecting pipe; 23-Water collecting tank; 241-First water outlet pipe; 242-Second water outlet pipe; 243-Third water outlet pipe; 25-Water outlet valve; 3-Filter assembly; 31-Filter; 32-Filter pipe; 4-Clarification assembly; 41-Clarification water tank; 42-Clarification water pipe; 43-Clarification water pump; 44-Clarification valve; 51-Water supply pipe; 52-Dosing device; 6-Heating fins; 7-Control valve. DETAILED DESCRIPTION

[0035] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0036] In the present disclosure, unless otherwise stated, directional words such as "inside" and "outside" refer to the outlines of the corresponding components themselves; "upstream" and "downstream" refer to the flow direction of flushing water; directional words such as "top", "bottom", "horizontal" and "vertical" are defined based on the usage habits of the flushing system provided by the present disclosure. Specifically, please refer to Figure 1 In the drawings shown, the side indicated by the Y arrow is the top, and the opposite direction is the bottom. Furthermore, the X direction refers to the horizontal direction, and the Y direction refers to the vertical direction. Terms such as "first" and "second" used in this disclosure are intended to distinguish one element from another and do not imply order or importance. In addition, in the following description referring to the accompanying drawings, the same reference numerals in different drawings indicate the same or similar elements.

[0037] Reference Figure 1 and Figure 2 The present disclosure provides a flushing system for an air-cooled unit, which may include a flushing component 1, a recovery component 2, a filter component 3, and a clarification component 4. The flushing component 1 may be arranged upstream of the heat sink 6. The flushing component 1 may be used to spray flushing water onto the heat sink 6 to clean the heat sink 6. The flushing component 1 may also flush the heat sink 6 according to the flushing requirements of the heat sink 6, thereby effectively removing dust and dirt on the surface of the heat sink 6, thereby maintaining good heat exchange performance, and thus improving the heat dissipation efficiency of the air-cooled unit. The recovery component 2 may be arranged downstream of the heat sink 6. The recovery component 2 may include a water collection tank 23. The water collection tank 23 may be used to receive the flushing water flowing through the heat sink 6, thereby collecting the flushing water after flushing. The water collection tank 23 may be configured to overflow and discharge the flushing water downstream when the flushing water reaches a preset water level, so as to facilitate the unified collection and treatment of the used flushing water. At the same time, the overflow discharge function of the recovery water tank can be automatically controlled to avoid overflowing the water tank, reduce the need for manual intervention, and improve the reliability and safety of the flushing system. The filter assembly 3 can be disposed downstream of the water collection tank 23 and can be used to receive and filter flushing water discharged from the water collection tank 23 to initially purify the flushing water collected in the water collection tank 23. The clarification assembly 4 can be disposed between the filter assembly 3 and the flushing assembly 1 and can be used to receive flushing water from the filter assembly 3 and perform secondary purification on the flushing water filtered by the filter assembly 3. After the flushing water is purified to a predetermined standard, it can be passed to the flushing assembly 1 to be used as flushing water for rinsing the heat sink fins 6.

[0038] Through the above-described technical solution, the arrangement of the recovery component 2 and the filter component 3 allows the flushing water to be recycled and reused, reducing water waste and conforming to the concept of sustainable development. The filter component 3 effectively removes impurities from the flushing water, which is further purified by the clarifier component 4 before being returned to the flushing component, ensuring the cleanliness of the flushing water and improving the overall operating efficiency of the system. This also makes the flushing process of the heat sink fins 6 more efficient, reducing the frequency of failures and maintenance caused by the accumulation of dirt on the heat sink fins 6, thereby reducing maintenance costs. By recycling water resources and reducing wastewater discharge, the adverse impact of wastewater on the environment is avoided, contributing to the achievement of environmental protection goals.

[0039] Reference Figure 1-Figure 3 The recovery component 2 may also include a water collecting trough 21. The cross-section of the water collecting trough 21 in the vertical direction may be constructed as a V-shaped structure with the opening facing upward, and one side of the V-shaped structure opening may be connected to the outer edge of the heat sink 6. The water collecting trough 21 is constructed as a V-shaped structure so that the flushing water can be more conveniently guided along the trough wall to flow into the water collecting trough 21, effectively reducing the splashing and waste of water flow, and ensuring that more flushing water is effectively collected. In addition, the bottom end of the water collecting trough 21 may be provided with the water outlet hole mentioned below. The design of the V-shaped structure allows the water flow to naturally converge to the bottom of the trough, thereby improving the drainage efficiency and avoiding the retention of water in the trough. In the embodiment provided in the present disclosure, the height of the inclined surface of the water collecting trough 21 away from the heat sink 6 may be higher than the height of the inclined surface on the side close to the heat sink 6, so as to partially block the heat sink 6 and the interior of the water collecting trough 21.

[0040] Reference Figure 2 According to the embodiment provided by the present disclosure, the cross-section of the water collection tank 21 in the horizontal direction can be constructed as a ring structure whose inner contour structure matches the outer contour structure of the heat dissipation fin 6. Such a design allows the water collection tank to provide a larger collection area while occupying a smaller space, effectively improving the space utilization efficiency and enabling the water collection tank 21 to adapt well to the needs of different installation environments.

[0041] Reference Figure 1 and Figure 2 The bottom end of the V-shaped structure can be provided with a water outlet to ensure efficient flushing water discharge. The recovery assembly 2 can also include a first water collecting pipe 221 extending in a vertical direction, and the top end of the first water collecting pipe 221 can be connected to the water outlet, and the bottom end of the first water collecting pipe 221 can be connected to the water collecting tank 23. In this way, the flushing water discharged into the first water collecting pipe 221 through the water collecting tank 21 can flow into the water collecting tank 23 by its own gravity, thereby improving the collection efficiency of the flushing water.

[0042] Further, refer to Figure 1In the embodiment provided by the present disclosure, the recovery component 2 may further include a second water collecting pipe 222 and a third water collecting pipe 223 connected between the water collecting tank 21 and the first water collecting pipe 221, and two water outlets may be provided at the bottom end of the V-shaped structure, the water inlets of the second water collecting pipe 222 and the third water collecting pipe 223 may be connected to the two water outlets in a one-to-one correspondence, and the water outlets of the second water collecting pipe 222 and the third water collecting pipe 223 may be commonly connected to the top of the first water collecting pipe 221 to further improve the discharge efficiency of the flushing water in the water collecting tank 21. It should be noted that in order to meet the flushing requirements and further improve the drainage efficiency of the water collecting tank 21, the number of water outlets may be more than two, and the number of the second water collecting pipe 222 and the third water collecting pipe 223 may correspond to the number of water outlets, and a plurality of water outlets may also be provided. The present disclosure does not limit this, as long as the drainage requirements can be met.

[0043] Reference Figure 1 The recovery component 2 may further include a first water outlet pipe 241, a second water outlet pipe 242, and a third water outlet pipe 243. The first water outlet pipe 241 may be connected between the water collecting tank 23 and the filter component 3, and the second water outlet pipe 242 and the third water outlet pipe 243 may be connected in parallel between the water collecting tank 23 and the first water outlet pipe 241. The second water outlet pipe 242 is connected at a preset water level of the water collecting tank 23, and the third water outlet pipe 243 is connected at the bottom of the water collecting tank 23. The third water outlet pipe 243 is provided with a water outlet valve 25. The arrangement of the second and third water outlet pipes 242, 243 not only enables stratified water extraction, helps to preferentially recover relatively clean water in the upper layer, reduces the recirculation of impurities, and improves water quality, but also the second water outlet pipe 242 can automatically discharge the flushing water when the flushing water in the water collecting tank 23 reaches a preset height, thereby achieving automatic control. By setting up multiple outlet pipes, the water flow rate can be flexibly adjusted according to actual needs to meet the flushing water recovery and treatment requirements under different working conditions. The setting of the outlet valve 25 can achieve precise control of the flushing water discharge flow rate, thereby meeting the flushing requirements of the heat sink 6. By setting up multiple outlet pipes in parallel, the flow efficiency of water can be improved, the water retention time can be reduced, the water recycling can be accelerated, and the working efficiency of the entire flushing system can be improved. Figure 1 In the embodiment provided in the present disclosure, a control valve 7 can be provided upstream of the water outlet valve 25. The control valve 7 can be used to assist the water outlet valve 25 in controlling the flushing water, thereby increasing the service life of the water outlet valve 25 and further improving the stability and reliability of the flushing system.

[0044] Reference Figure 1The filter assembly 3 may include multiple filters 31 arranged in parallel. The multiple filters 31 may be arranged in parallel between the first outlet pipe 241 mentioned above and the clarified water tank 41 mentioned below via a filter tube 32. The parallel arrangement of the multiple filters 31 not only effectively ensures the filtration intensity of the flushing water, but also ensures that when one of the multiple filters 31 is damaged or requires repair and maintenance, the other filters 31 can continue filtering, thereby ensuring the continuous operation of the flushing system.

[0045] Reference Figure 1 , the clarification component 4 may include a clarified water tank 41, a clarified water pipe 42 and a clarified water pump 43. The clarified water tank 41 can be connected and arranged downstream of the filter 31, so as to be used to precipitate the flushing water flowing through the filter 31, so as to further precipitate and filter the impurities in the flushing water. The clarified water pipe 42 can be connected and arranged between the flushing component 1 and the clarified water tank 41, so as to pass the flushing water treated by the clarified water tank 41 into the flushing component. The clarified water pump 43 can be arranged on the clarified water pipe 42 to provide flow power for the flushing water circulating in the clarified water pipe 42, and pump the flushing water in the clarified water tank 41 to its downstream, so as to ensure the stable operation of the flushing system and ensure that the flushing system can meet the flushing needs of the heat sink 6. Figure 1 As shown, a clarification valve 44 can be provided upstream of the clarification water pump 43 to control the flow rate and circulation rate of the flushing water in the clarification water pipe 42. Furthermore, a control valve 7 can be provided upstream of the clarification valve 44 and downstream of the clarification water pump 43 to further improve the control accuracy of the flushing water.

[0046] Reference Figure 1 A water supply pipe 51 may be provided between the clarified water tank 41 and the filter 31, and the flushing system may further include a drug delivery device 52 connected in series to the water supply pipe 51 to purify the flushing water flowing through the water supply pipe 51. In the embodiment provided in the present disclosure, the drug delivery device 52 may add flocculants, coagulants and other agents into the water supply pipe 51 to quickly combine with suspended matter, colloidal particles and other substances in the flushing water in the water supply pipe 51, thereby effectively removing suspended impurities in the flushing water, significantly improving the water quality of the flushing water, and laying a good foundation for subsequent treatment steps. In addition, the drug delivery device 52 can also target harmful substances such as heavy metal ions and organic pollutants contained in the flushing water by introducing specific chemical agents into the water supply pipe 51, such as sulfides for precipitating heavy metals and oxidants for degrading organic pollutants, to achieve effective removal of these harmful substances and reduce pollution to the environment.

[0047] Reference Figure 1The flushing assembly 1 may include a flushing water tank 11, a flushing pipe 12, and a flushing nozzle. The flushing water tank 11 may be connected and arranged upstream of the clarification assembly 4, and the flushing water tank 11 may be used to store flushing water. One end of the flushing pipe 12 may be connected to the water outlet of the flushing water tank 11, and the other end of the flushing pipe 12 may be connected to the flushing nozzle (not shown in the figure) so that the flushing water stored in the flushing water tank 11 can be sprayed out through the flushing nozzle through the flushing pipe 12 to flush the heat sink 6. In the embodiment provided in the present disclosure, the design of the flushing nozzle can be adjusted according to specific needs to adapt to different types of heat sink fins 6 and working environments, thereby improving the flexibility of the flushing system.

[0048] Reference Figure 1 The flushing assembly 1 may further include a flushing pump 13 and a flushing valve 14. The flushing pump 13 may be provided on the flushing pipe 12 to provide flow power for the flushing water circulating in the flushing pipe 12 to ensure that the flushing water has sufficient flushing force and flushing flow. The flushing valve 14 may be provided on the flushing pipe 12 and located between the flushing pump 13 and the flushing nozzle to adjust the flow rate and flow of the flushing water flow, thereby meeting the flushing requirements of the heat sink 6. In the embodiment provided in the present disclosure, a control valve 7 may be provided upstream and downstream of the flushing valve 14, respectively. By providing the control valve 7, the control accuracy of the flushing water can be further improved. At the same time, reducing the control difficulty of the flushing valve 14 can also improve the use efficiency of the flushing valve.

[0049] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0050] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0051] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A flushing system for an air-cooling unit, characterized in that: include: A flushing assembly, disposed upstream of the radiating fins, for spraying flushing water to clean the radiating fins; a recovery assembly, disposed downstream of the radiating fins, and comprising a water collecting tank for receiving the flushing water flowing through the radiating fins, the water collecting tank being configured to discharge the flushing water overflow when the flushing water reaches a preset water level; a filter assembly, connected and arranged downstream of the water collecting tank, for receiving and filtering the flushing water discharged from the water collecting tank; as well as The clarification component is arranged between the filtering component and the flushing component, and is used for receiving the flushing water from the filtering component and passing the flushing water to the flushing component after purification.

2. The flushing system according to claim 1, characterized in that The recovery component further includes a water collecting trough, the cross section of which in the vertical direction is a V-shaped structure with an opening facing upward, and one side of the V-shaped structure where the opening is located is connected to the outer edge of the heat dissipation fin.

3. The flushing system according to claim 2, characterized in that The cross-section of the water collecting tank in the horizontal direction is a ring structure whose inner contour matches the outer contour of the heat dissipating fins.

4. The flushing system according to claim 2, characterized in that The recovery component also includes a first water collecting pipe extending in a vertical direction. A water outlet is provided at the bottom end of the V-shaped structure. The top end of the first water collecting pipe is connected to the water outlet, and the bottom end of the first water collecting pipe is connected to the water collecting tank.

5. The flushing system according to claim 1, characterized in that The recovery component also includes a first water outlet pipe connected between the water collecting tank and the filter component, and the recovery component also includes a second water outlet pipe and a third water outlet pipe connected in parallel between the water collecting tank and the first water outlet pipe, wherein the second water outlet pipe is connected at a preset water level height of the water collecting tank, the third water outlet pipe is connected at the bottom of the water collecting tank, and an outlet valve is provided on the third water outlet pipe.

6. The flushing system according to claim 1, characterized in that The filter assembly includes a plurality of filters arranged in parallel.

7. The flushing system according to claim 6, characterized in that The clarification component includes: a clarified water tank, connected and arranged downstream of the filter, for settling the flushing water flowing through the filter; a clarified water pipe, communicating between the flushing assembly and the clarified water tank; and The clarified water pump is arranged on the clarified water pipe and is used for pumping the flushing water in the clarified water tank to the downstream thereof.

8. The flushing system according to claim 7, characterized in that A water supply pipe is provided between the clarified water tank and the filter. The flushing system further comprises a drug delivery device connected in series to the water supply pipe to purify flushing water flowing through the water supply pipe.

9. The flushing system according to claim 1 or 6, characterized in that: The flushing assembly comprises: a flushing water tank, connected and arranged upstream of the clarification component, for storing flushing water; a flushing pipe, one end of which is connected to the water outlet of the flushing water tank and is used to transport flushing water; and A flushing nozzle is arranged at the other end of the flushing pipe and is used for spraying flushing water onto the heat dissipating fins.

10. The flushing system according to claim 9, characterized in that The flushing assembly further comprises: a flushing pump, disposed on the flushing pipeline; and A flushing valve is arranged on the flushing pipeline and located between the flushing pump and the flushing nozzle.

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