Unit cooling backwashing system

Abstract

The utility model discloses a unit cooling backwash system, which relates to the technical field of equipment cleaning and comprises an industrial water pipe assembly, a backwash water pipe assembly and a backwash water pipe assembly, the backwashing assembly communicates with the industrial water pipe assembly and is used for providing industrial water flowing in the first direction to wash an inner cavity of the to-be-cooled equipment; the cooling assembly communicates with the industrial water pipe assembly and is used for providing industrial water flowing in the second direction so as to cool the inner cavity of the equipment to be cooled, and the first direction is opposite to the second direction; the detection elements are arranged at an inlet and an outlet of an inner cavity of the equipment to be cooled and are used for detecting the temperature of the industrial water; the control element is in signal connection with the detection element, the backwashing assembly and the cooling assembly, and the control element is used for controlling start and stop of the backwashing assembly and the cooling assembly based on detection information of the detection element. According to the unit cooling and backwashing system, the equipment to be cooled can be automatically washed, and pipelines do not need to be disassembled and assembled.

Description

Technical Field

[0001] This utility model relates to the field of equipment cleaning technology, and more specifically, to a unit cooling backwashing system. Background Technology

[0002] In the field of steam turbine generator sets in thermal power plants, the air cooler serves as the cooling equipment for the air chamber of the steam turbine generator. Cooling water flows through the tubes to cool the circulating air in the air chamber, thereby maintaining the normal temperature of the generator. The lubricating oil cooler serves as the cooling equipment for the lubricating oil of the steam turbine generator set. Cooling water flows through the tubes to cool the lubricating oil. After long-term operation, the tube walls of the air cooler and oil cooler are prone to accumulating mud and salt scale, which need to be flushed in time.

[0003] Specifically, during flushing, maintenance personnel disassemble each set of inlet short pipes of the air cooler and oil cooler, and then operators operate the valves to flush. After the flushing is completed, each set of inlet short pipes is reassembled. The entire flushing process is time-consuming and labor-intensive.

[0004] In summary, how to provide a convenient way to clean air coolers and oil coolers is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a unit cooling backflushing system that can automatically flush the air cooler and oil cooler without disassembling the pipeline.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A unit cooling backflushing system, comprising:

[0008] Industrial water pipe assemblies for supplying industrial water;

[0009] A backwashing assembly, connected to the industrial water pipe assembly and used to provide the industrial water flowing in a first direction to flush the interior of the equipment to be cooled;

[0010] A cooling assembly, connected to the industrial water pipe assembly and used to provide industrial water flowing in a second direction to cool the interior cavity of the equipment to be cooled, wherein the first direction and the second direction are opposite;

[0011] A detection element is disposed at the inlet and outlet of the inner cavity of the equipment to be cooled, for detecting the temperature of the industrial water;

[0012] A control element is connected to the detection element, the backwash assembly, and the cooling assembly. The control element is used to control the start and stop of the backwash assembly and the cooling assembly based on the detection information from the detection element.

[0013] Preferably, both the cooling component and the backwashing component are connected to the circulating water tank through the device to be cooled. The circulating water tank is used to receive the cooling water and backwashing water corresponding to the cooling component and the backwashing component, respectively, to replenish the circulating water.

[0014] Preferably, the circulating water tank is connected to a side-stream filtration system, which can extract the circulating water in the circulating water tank for filtration and send the filtered circulating water back into the circulating water tank.

[0015] The bypass filtration system is connected to the control element, which controls the operation of the bypass filtration system based on water quality detection information in the circulating water tank or based on preset periodic start / stop information.

[0016] Preferably, the device to be cooled includes a plurality of air coolers and oil coolers arranged in parallel. One end of the inner cavity of each air cooler is connected to the backwashing assembly and the cooling assembly arranged in parallel. The other end of the inner cavity of each air cooler is connected to the inner cavity of the oil cooler, and the inner cavity of the oil cooler is connected to the circulating water tank.

[0017] Preferably, the backwashing assembly includes:

[0018] Several first flushing pipes, each of which has its inlet end connected to one of the air coolers;

[0019] The first flushing switch valve is located on the first flushing pipeline and is used to control the start and stop of the flushing operation of the corresponding air cooler.

[0020] The first water outlet pipe is used to connect the outlet ends of several first flushing pipes to the circulating water tank.

[0021] Preferably, the backwashing assembly further includes:

[0022] The second flushing line has its outlet end connected to the oil cooler.

[0023] The second flushing switch valve is located on the second flushing pipeline and is used to control the start and stop of the flushing operation of the oil cooler.

[0024] The second water outlet pipe is used to connect the oil cooler and the circulating water tank.

[0025] Preferably, the second water outlet pipeline is provided with a flushing outlet valve, and the control element can control the start and stop of the flushing operation by controlling the flushing outlet valve, the first flushing switch valve, and the second flushing switch valve.

[0026] Preferably, the cooling assembly includes a first cooling pipe, a second cooling pipe, and a third cooling pipe arranged along the first direction;

[0027] The first cooling pipe and the first flushing pipe are arranged side by side and connected to the inner cavity of the air cooler, and the industrial water in the first cooling pipe and the first flushing pipe flows in opposite directions;

[0028] The first cooling pipe is equipped with a first cooling switch valve, which is used to control the start and stop of the cooling operation of the corresponding air cooler;

[0029] Several second cooling pipes are connected to the inner cavity of the oil cooler through the third cooling pipe.

[0030] Preferably, the cooling assembly further includes a fourth cooling pipe and a fifth cooling pipe arranged sequentially along the first direction, and the fourth cooling pipe is provided with a second cooling switch valve for controlling the start and stop of the cooling operation of the oil cooler;

[0031] The third cooling pipe is connected to the inner cavity of the oil cooler through the fourth cooling pipe, and the inner cavity of the oil cooler is connected to the circulating water tank through the fifth cooling pipe.

[0032] Preferably, the industrial water assembly includes:

[0033] The main pipeline is equipped with a main pipeline inlet valve.

[0034] A bypass pipeline is arranged in parallel with the main pipeline and is equipped with a bypass inlet valve. Both the main pipeline and the bypass pipeline can provide the industrial water.

[0035] A filter element is provided in the main pipeline and / or the bypass pipeline.

[0036] The unit cooling backwashing system provided by this utility model includes an industrial water pipe assembly, a backwashing assembly, a cooling assembly, a detection element, and a control element. The industrial water pipe assembly can connect the backwashing assembly and the cooling assembly to provide industrial water. After the detection element detects the inlet and outlet industrial water temperatures of the equipment to be cooled, if the control element determines the cooling status based on the detection information of the detection element, and further determines that there is a blockage or scaling, the control element can control the backwashing assembly to introduce industrial water in the first direction into the inner cavity of the equipment to be cooled for backwashing. At the same time, the cooling assembly is in a closed state, that is, no industrial water flowing in the second direction is provided for the cooling operation of the equipment to be cooled.

[0037] The beneficial effects of this utility model are as follows: the industrial water temperature at the inlet and outlet of the equipment to be cooled can be detected by the detection element to determine the cooling status, and the control element can determine whether backwashing is required based on the detection element, so that the backwashing process can be automatically controlled without disassembling the pipeline, thus improving the convenience and reliability of the flushing operation. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the structure of a unit cooling backflushing system provided by this utility model.

[0040] The reference numerals in the figures include:

[0041] 01-Backwash assembly; 02-Cooling assembly;

[0042] 1-Air cooler; 2-Oil cooler; 3-Industrial water pipe assembly; 4-First outlet pipe; 5-First flushing pipe; 6-First flushing switch valve; 7-Side filter system; 8-First cooling switch valve; 9-First cooling pipe; 10-First flow control valve; 11-Second cooling pipe; 12-Third cooling pipe; 13-Fourth cooling pipe; 14-Second cooling switch valve; 15-Second flushing pipe; 16-Second flushing switch valve; 17-Fifth cooling pipe; 18-Second outlet pipe; 19-Flushing outlet valve; 20-Second flow control valve; 21-Circulating water tank; 22-Water tank drain valve; 23-Water tank drain pipe; 24-Side filter outlet pipe; 25-Side filter inlet pipe;

[0043] 31-Bypass pipeline; 32-Bypass inlet valve; 33-Main pipeline inlet valve; 34-Filter element; 35-Filter drain valve; 36-Filter drain pipeline. Detailed Implementation

[0044] 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.

[0045] The core of this utility model is to provide a unit cooling backflushing system that can perform flushing operations on the equipment to be cooled without disassembling the pipeline. When the equipment to be cooled is an air cooler and an oil cooler, it can facilitate the flushing of the air cooler and the oil cooler.

[0046] The unit cooling backflushing system provided by this utility model includes an industrial water pipe assembly 3, a backflushing assembly 01, a cooling assembly 02, a detection element, and a control element. Please refer to [reference needed]. Figure 1 .

[0047] Industrial water pipe assembly 3 is used to supply industrial water, which is provided by the plant's industrial water network and can be used to cool and flush the interior of the equipment to be cooled.

[0048] The backwash assembly 01 is connected to the industrial water pipe assembly 3 and is used to provide industrial water flowing in the first direction to flush the inner cavity of the equipment to be cooled. Flushing operations are required when the equipment to be cooled needs to be flushed, such as when scale begins to form inside the equipment after prolonged use, or when conditions require regular cleaning.

[0049] Cooling component 02 is connected to industrial water pipe assembly 3 and is used to provide industrial water flowing in a second direction to cool the internal cavity of the equipment to be cooled, with the first and second directions being opposite. Specifically, the industrial water in the second direction is used to cool the equipment to ensure reliable operation and service life.

[0050] It should be noted that either the cooling component 02 or the backflushing component 01 can be used. If cooling is required, the backflushing component 01 should be turned off and the cooling component 02 should be turned on.

[0051] In addition, the industrial water pipe assembly 3 can provide industrial water in two opposite directions. Specifically, by setting different types of pump structures, industrial water can be drawn and transported in different directions, so that the industrial water can have a certain pressure to flush or cool the inner cavity of the equipment to be cooled.

[0052] The detection element is located at the inlet and outlet of the inner cavity of the equipment to be cooled, and is used to detect the temperature of industrial water. By detecting the industrial water temperature at the inlet and outlet, the cooling status of the equipment to be cooled can be reflected. The cooling status of the equipment to be cooled is related to the blockage status of the equipment, so it can be determined whether flushing is required by the detection element.

[0053] The control element is connected to the detection element, backwash assembly 01, and cooling assembly 02. The control element controls the start and stop of the backwash assembly 01 and cooling assembly 02 based on the detection information from the detection element. Specifically, if the detection information from the detection element determines that there is a blockage in the inner cavity of the equipment to be cooled, the control element controls the backwash assembly 01 to start and the cooling assembly 02 to stop, thus initiating the backwashing operation.

[0054] If the cooling component 02 remains on during operation, the control element determines that a flushing operation is required based on the detection information from the detection element. In this case, the cooling component 02 is turned off first, and then the backflushing component 01 is turned on.

[0055] In this embodiment, the control element can be either remotely controlled or locally controlled.

[0056] In one specific implementation, the control element can be a distributed control system (DCS) for the unit, enabling remote control via signal connections between the control element, backwash assembly 01, and cooling assembly 02. Alternatively, this system can also achieve automatic remote control, automatically controlling the start and stop of the backwash assembly 01 and cooling assembly 02 based on detection information fed back from the detection element, thereby achieving automated control of the cooling backwash system and improving its intelligence level.

[0057] In this embodiment, the equipment to be cooled can be a type of air cooler, oil cooler, water cooler, etc., which has the requirements for cooling and rinsing operations.

[0058] In this embodiment, since the cooling and backwashing operations can be automated, there is no need to disassemble the equipment to be cooled, saving time and effort and improving the economic efficiency of the unit.

[0059] Based on any of the above embodiments, please refer to Figure 1 Both the cooling component 02 and the backwash component 01 can be connected to the circulating water tank 21 through the equipment to be cooled. The circulating water tank 21 is used to receive the cooling water and backwash water corresponding to the cooling component 02 and the backwash component 01 respectively to replenish the circulating water.

[0060] The circulating water tank 21 allows cooling water from the cooling component 02 to be sent to replenish the circulating water in the tank. After further treatment in the tank, the cooling water participates in the circulating cooling operation of other equipment, thus achieving efficient resource utilization. The cooling water here refers to industrial water that has cooled the equipment.

[0061] For the backwashing component 01, the circulating water tank 21 allows the backwash water to be recycled back into the tank to replenish its circulating water supply. The circulating water tank 21 treats the backwash water, which then participates in the cooling cycle of other equipment, thus achieving efficient resource utilization. The cooling water here is industrial water that has been used to rinse the equipment. In one scenario, after rinsing the interior of the equipment with industrial water, the backwash water may carry impurities or dirt. The circulating water tank 21 filters and removes these impurities and dirt, and the relatively clean backwash water can then be used as replenishment water for the circulating water tank 21 to participate in the cooling cycle of other equipment.

[0062] In another scenario, the backwash assembly 01 can periodically flush the inner cavity of the equipment to be cooled, preventing scale buildup that is difficult to clean due to prolonged use. In this case, after flushing the inner cavity of the equipment with industrial water, the resulting backwash water contains only a small amount of fine impurities. This backwash water is then recycled to the circulating water tank 21 for further processing to filter out these fine impurities. The filtered backwash water then participates in the cooling cycle of other equipment to be cooled. In this way, without affecting the unit load, the air coolers and oil coolers of the cascade-cooled turbine generator set can be periodically flushed online before hard scale forms on the pipe walls of the oil cooler 2 and air cooler 1. This ensures the cleanliness of the pipe walls of air cooler 1 and oil cooler 2, guarantees the cooling effect, and does not cause additional industrial water loss. The specific cleaning intervals and frequency can be determined based on previous detection information from testing components, or based on specific theoretical / practical / simulation data.

[0063] In this embodiment, by setting up the circulating water tank 21, the backwash water and cooling water are not discharged as sewage or wastewater, but directly enter the circulating water tank 21 as supplementary water for the power plant's circulating water system. This does not affect the regular sewage discharge cycle of the circulating water tank 21 in the system, and will not cause losses due to the addition of industrial water, thereby reducing the cost of backwashing and cooling operations.

[0064] Based on any of the above embodiments, referring to the figures, the circulating water tank 21 is connected to a side-filter system 7. The side-filter system 7 can draw circulating water from the circulating water tank 21 for filtration and can send the filtered circulating water back into the circulating water tank 21. The circulating water here includes the cooling water and backwash water corresponding to the cooling assembly 02 and the backwash assembly 01, respectively, as well as the circulating water originally stored in the circulating water tank 21.

[0065] like Figure 1The side-filter system 7 is connected to the circulating water tank 21 through the side-filter inlet pipe 25 and the side-filter outlet pipe 24. The circulating water in the circulating water tank 21 is drawn into the side-filter system 7 through the side-filter inlet pipe 25. After being filtered by the side-filter system 7, the relatively clean circulating water is sent back to the circulating water tank 21 so that it can continue to participate in the cooling cycle.

[0066] The bypass filtration system 7 is connected to the control element, which controls the operation of the bypass filtration system 7 based on water quality detection information in the circulating water tank 21 or based on preset periodic start / stop information. In the first case, the system is equipped with an element capable of detecting the water quality in the circulating water tank 21. This element can detect the water quality at any time, and the control element can determine whether self-cleaning of the circulating water is required based on the detected information. If so, it controls the operation of the bypass filtration system 7. The specific element can be one that detects water cleanliness or the content of impurities in the water; this will not be elaborated upon here.

[0067] In another scenario, the control element pre-stores periodic start-up and shutdown information for the periodic operation of the bypass filtration system 7, enabling remote and automated control of the bypass filtration system 7 for self-cleaning to ensure the water quality in the tank meets standards. To ensure effective filtration of the circulating water, a feature is provided on the lower side of the circulating water tank 21, such as... Figure 1 As shown, a water tank drain pipe 23 and a water tank drain valve 22 are also provided on the water tank drain pipe 23. The bypass filtration system 7 is periodically activated to ensure the water quality in the circulating water tank 21 is up to standard. If the water quality is found to be substandard during testing, the water tank drain pipe 23 can be opened to drain the water, further ensuring the water quality in the circulating water tank 21 is up to standard and can participate in the circulation. The detection of substandard water quality can be achieved using components capable of detecting water quality; details will not be elaborated further.

[0068] In this embodiment, the water quality of the circulating water tank 21 can be ensured to be qualified by setting up the side filter system 7 and the water tank drain pipe 23, so that the circulating water can be reliably treated and reused.

[0069] Based on any of the above embodiments, please refer to Figure 1 The equipment to be cooled includes several air coolers 1 and oil coolers 2 arranged in parallel. One end of the inner cavity of each air cooler 1 is connected to a backwashing component 01 and a cooling component 02 arranged in parallel. The other end of the inner cavity of each air cooler 1 is connected to the inner cavity of the oil cooler 2, and the inner cavity of the oil cooler 2 is connected to the circulating water tank 21.

[0070] Air cooler 1 is the cooling equipment for the turbine generator's air chamber. Cooling component 02 returns industrial water to the inner chambers of several air coolers 1, where it cools the circulating air in the generator's air chamber, thus maintaining the generator's normal temperature. The industrial water after passing through air cooler 1 is then sent to oil cooler 2 for further cooling. After completing these steps, the cooling water from cooling component 02 is sent to circulating water tank 21 as makeup water for the system's circulating water system.

[0071] In this embodiment, as Figure 1 If four air coolers 1 are set up, the industrial water will be sent to the oil cooler 2 after the four air coolers 1 have completed the heat exchange, so as to cool the oil cooler 2.

[0072] Based on any of the above embodiments, please refer to Figure 1 The backwash assembly 01 includes: a plurality of first flushing pipes 5, the inlet end of each first flushing pipe 5 being connected to a cooler 1; a first flushing switch valve 6, located on the first flushing pipe 5, for controlling the start and stop of the flushing operation of the corresponding cooler 1; and a first outlet pipe 4, for connecting the outlet ends of the plurality of first flushing pipes 5 to the circulating water tank 21.

[0073] by Figure 1 For example, if the air cooler 1 is set with four groups, then there are four sets of backwashing components 01 respectively. The control element can control the start and stop of any set of backwashing components 01 through the first flushing switch valve 6. Specifically, it determines whether there is a blockage based on the temperature difference between the outlet and inlet of the industrial water of each air cooler 1, so as to determine whether one or several air coolers 1 need to be backwashed.

[0074] like Figure 1 As shown, the inlet and outlet of the first flushing pipe 5 are defined based on the premise that the industrial water flows in the first direction inside it.

[0075] In this embodiment, it should be noted that the industrial water pipe assembly 3 can provide industrial water with a certain pressure flowing in the first direction to the inner cavity of the air cooler 1. After rinsing, the backwash water carrying impurities or dirt will enter the first outlet pipe 4 through the first flushing pipe 5 and be sent to the circulating water tank 21 through the first outlet pipe 4 as a supplement to the circulating water.

[0076] Based on any of the above embodiments, please refer to Figure 1 The backwash assembly 01 also includes: a second flushing pipe 15, the outlet end of which is connected to the oil cooler 2; a second flushing switch valve 16, which is located on the second flushing pipe 15 and is used to control the start and stop of the flushing operation of the oil cooler 2; and a second water outlet pipe 18, which is used to connect the oil cooler 2 and the circulating water tank 21.

[0077] like Figure 1 As shown, the second flushing pipe 15, the second flushing switch valve 16, and the second outlet water pipe 18 are mainly used for cooling the oil cooler 2. Specifically, industrial water enters the oil cooler 2 in the second direction through the second flushing pipe 15 for backflushing. The backflushing water, carrying impurities and dirt, is sent to the circulating water tank 21 through the second outlet water pipe 18 as a supplement to the circulating water. It should be noted that during the backflushing operation of the oil cooler 2, the cooling process is stopped.

[0078] Based on any of the above embodiments, please refer to Figure 1 The second water outlet pipe 18 is equipped with a flushing outlet valve 19. The control element can control the start and stop of the flushing operation by controlling the flushing outlet valve 19, the first flushing switch valve 6, and the second flushing switch valve 16.

[0079] like Figure 1 As shown, the start and stop of the backwashing operation of the corresponding air cooler 1 can be controlled by controlling the first flushing switch valve 6; the start and stop of the backwashing operation of the oil cooler 2 can be controlled by controlling the second flushing switch valve 16 and the flushing outlet valve 19. For example, when the air cooler 1 is performing backwashing operation, the first flushing switch valve 6 is in the open state and the first cooling switch valve 8 is in the closed state. If it is necessary to end the backwashing operation, the first flushing switch valve 6 is closed and the first cooling switch valve 8 is opened. When the oil cooler 2 is performing backwashing operation, the second flushing switch valve 16 and the flushing outlet valve 19 are in the open state, while the second flow control valve 20 is in the closed state. If it is necessary to end the backwashing operation, the second flushing switch valve 16 is closed, the flushing outlet valve 19 is closed, and the second flow control valve 20 is opened.

[0080] The control element controls the opening and closing of the aforementioned on / off valve and outlet valve based on the detection information from the detection element, thereby achieving automated control of the backwashing operation. This eliminates the need to disassemble pipelines, making operation simple, convenient, and saving labor and time.

[0081] Based on any of the above embodiments, please refer to Figure 1 The cooling assembly 02 includes a first cooling pipe 9, a second cooling pipe 11, and a third cooling pipe 12 arranged along a first direction. Industrial water in the industrial water pipe assembly 3 enters the air cooler 1 for cooling after passing through the first cooling pipe 9. After cooling, it flows to the second cooling pipe 11 and the third cooling pipe 12, and then enters the oil cooler 2 to continue the cooling operation of the oil cooler 2.

[0082] The first cooling pipe 9 and the first flushing pipe 5 are arranged side by side and connected to the inner cavity of the air cooler 1. The industrial water in the first cooling pipe 9 and the first flushing pipe 5 flows in opposite directions. Figure 1The former is used for cooling operations inside the air cooler 1, and the latter is used for backwashing operations inside the air cooler 1. This configuration ensures reliable and effective cleaning of scale buildup inside the air cooler 1, guaranteeing the performance and service life of the air cooler 1.

[0083] The first cooling pipe 9 is equipped with a first cooling switch valve 8, which is used to control the start and stop of the cooling operation of the corresponding air cooler 1. A specific control element signal is connected to the first cooling switch valve 8 to control the cooling operation of the corresponding air cooler 1, and a control element signal is connected to the first flushing switch valve 6 to control the start and stop of the backflushing operation of the corresponding air cooler 1. The first cooling switch valve 8 and the first flushing switch valve 6 are either both closed, or one is open and the other is closed.

[0084] Several second cooling pipes 11 are connected to the inner cavity of the oil cooler 2 through a third cooling pipe 12. That is, the industrial water that has completed heat exchange through each air cooler 1 is collected through the third cooling pipe 12 and sent into the oil cooler 2 for cooling operation. Then, the cooling water of the cooling component 02 is sent into the circulating water tank 21 as the replenishment water of the circulating water tank 21.

[0085] In this embodiment, the connection between the second cooling pipe 11 and the third cooling pipe 12 can be facilitated by setting a first flow control valve 10 in the second cooling pipe 11, which allows the control element to automatically control the connection.

[0086] Based on any of the above embodiments, please refer to Figure 1 The cooling assembly 02 also includes a fourth cooling pipe 13 and a fifth cooling pipe 17 arranged sequentially along the first direction. The fourth cooling pipe 13 is provided with a second cooling switch valve 14 for controlling the start and stop of the cooling operation of the oil cooler 2.

[0087] The third cooling pipe 12 is connected to the inner cavity of the oil cooler 2 via the fourth cooling pipe 13, and the inner cavity of the oil cooler 2 is connected to the circulating water tank 21 via the fifth cooling pipe 17.

[0088] After industrial water enters the inner cavity of several air coolers 1, it is collected through the third cooling pipe 12 and flows into the fourth cooling pipe 13. The second cooling switch valve 14 is opened by the control element so that industrial water can enter the oil cooler 2 for cooling operation.

[0089] Fifth cooling pipe 17 Figure 1 As shown, the industrial water that can be used for cooling the oil cooler 2 flows in the second direction into the circulating water tank 21, and can also flow in the first direction during backwashing to supply industrial water for backwashing into the oil cooler 2.

[0090] In order to facilitate the flow of industrial water in the second direction to the circulating water tank 21 during the cooling of the oil cooler 2, a second flow control valve 20 is provided at one end of the fifth cooling pipe 17 near the circulating water tank 21. The second flow control valve 20 is connected to the control element signal to realize control.

[0091] Based on any of the above embodiments, please refer to the figures. The industrial water pipe assembly 3 includes: a main pipe with a main pipe inlet valve 33; a bypass pipe 31 arranged in parallel with the main pipe and equipped with a bypass inlet valve 32, both the main pipe and the bypass pipe 31 can provide industrial water; and a filter element 34 disposed in the main pipe and / or the bypass pipe 31, which can filter the industrial water to avoid blockage in the subsequent air cooler 1 and oil cooler 2.

[0092] In this embodiment, two main pipeline inlet valves 33 can be provided, such as... Figure 1 As shown, the main inlet valve 33 located at the front end of the filter element 34 is used to adjust the flow rate of the industrial water before filtration and to switch the industrial water on and off; the main inlet valve 33 located at the rear end of the filter element 34 is used to adjust the flow rate of the industrial water after filtration and to switch the industrial water on and off.

[0093] The bypass pipe 31 and the bypass inlet valve 32 serve as backup switching components, capable of opening in case of problems with the main pipe to ensure reliable and effective cooling of the air cooler 1 and the oil cooler 2. In one embodiment, a filter element 34 may also be installed on the bypass pipe 31 to filter industrial water and prevent blockages in the subsequent air cooler 1 and oil cooler 2.

[0094] In this embodiment, when the main pipeline is running, the bypass pipeline 31 is not running, reducing unnecessary operation and lowering usage costs.

[0095] In this embodiment, the filter water discharge pipe 36 and filter water discharge valve 35, which are matched with the filter element 34, can be used to periodically discharge sewage and impurities, ensuring the reliable operation of the filter element 34.

[0096] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0097] The above provides a detailed description of a unit cooling backflushing system provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A unit cooling backflushing system, characterized in that, include: Industrial water pipe assembly (3), used to supply industrial water; A backwash assembly (01) is connected to the industrial water pipe assembly (3) and is used to provide the industrial water flowing in a first direction to flush the interior of the equipment to be cooled. A cooling assembly (02) is connected to the industrial water pipe assembly (3) and is used to provide industrial water flowing in a second direction to cool the interior of the equipment to be cooled, the first direction and the second direction being opposite; A detection element is disposed at the inlet and outlet of the inner cavity of the equipment to be cooled, for detecting the temperature of the industrial water; A control element is connected to the detection element, the backwash assembly (01), and the cooling assembly (02). The control element is used to control the start and stop of the backwash assembly (01) and the cooling assembly (02) based on the detection information of the detection element.

2. The unit cooling backflushing system according to claim 1, characterized in that, Both the cooling component (02) and the backwash component (01) can be connected to the circulating water tank (21) through the device to be cooled. The circulating water tank (21) is used to receive the cooling water and backwash water corresponding to the cooling component (02) and the backwash component (01) respectively to replenish the circulating water.

3. The unit cooling backflushing system according to claim 2, characterized in that, The circulating water tank (21) is connected to a side-filter system (7), which can extract the circulating water in the circulating water tank (21) for filtration and send the filtered circulating water back to the circulating water tank (21). The bypass filtration system (7) is connected to the control element, which is used to control the operation of the bypass filtration system (7) based on the water quality detection information in the circulating water tank (21) or based on the preset periodic start-stop information.

4. The unit cooling backflushing system according to claim 3, characterized in that, The cooling equipment includes several air coolers (1) and oil coolers (2) arranged in parallel. One end of the inner cavity of each air cooler (1) is connected to the backwashing assembly (01) and the cooling assembly (02) arranged in parallel. The other end of the inner cavity of each air cooler (1) is connected to the inner cavity of the oil cooler (2). The inner cavity of the oil cooler (2) is connected to the circulating water tank (21).

5. The unit cooling backflushing system according to claim 4, characterized in that, The backwashing assembly (01) includes: A plurality of first flushing pipes (5), the inlet end of each first flushing pipe (5) is connected to one of the air coolers (1); The first flushing switch valve (6) is located on the first flushing pipeline (5) and is used to control the start and stop of the flushing operation of the corresponding air cooler (1). The first water outlet pipe (4) is used to connect the outlet ends of several first flushing pipes (5) to the circulating water tank (21).

6. The unit cooling backflushing system according to claim 5, characterized in that, The backwashing assembly (01) further includes: The second flushing pipe (15) is connected to the oil cooler (2) at its outlet end. The second flushing switch valve (16) is located on the second flushing pipeline (15) and is used to control the start and stop of the flushing operation of the oil cooler (2). The second water outlet pipe (18) is used to connect the oil cooler (2) and the circulating water tank (21).

7. The unit cooling backflushing system according to claim 6, characterized in that, The second water outlet pipe (18) is equipped with a flushing outlet valve (19). The control element can control the start and stop of the flushing operation by controlling the flushing outlet valve (19), the first flushing switch valve (6), and the second flushing switch valve (16).

8. The unit cooling backflushing system according to claim 7, characterized in that, The cooling assembly (02) includes a first cooling pipe (9), a second cooling pipe (11), and a third cooling pipe (12) arranged along the first direction. The first cooling pipe (9) and the first flushing pipe (5) are arranged side by side and connected to the inner cavity of the air cooler (1). The industrial water in the first cooling pipe (9) and the first flushing pipe (5) flows in opposite directions. The first cooling pipe (9) is equipped with a first cooling switch valve (8) for controlling the start and stop of the cooling operation of the corresponding air cooler (1); Several second cooling pipes (11) are connected to the inner cavity of the oil cooler (2) through the third cooling pipe (12).

9. The unit cooling backflushing system according to claim 8, characterized in that, The cooling assembly (02) also includes a fourth cooling pipe (13) and a fifth cooling pipe (17) arranged sequentially along the first direction. The fourth cooling pipe (13) is provided with a second cooling switch valve (14) for controlling the start and stop of the cooling operation of the oil cooler (2). The third cooling pipe (12) is connected to the inner cavity of the oil cooler (2) through the fourth cooling pipe (13), and the inner cavity of the oil cooler (2) is connected to the circulating water tank (21) through the fifth cooling pipe (17).

10. The unit cooling backflushing system according to any one of claims 1 to 9, characterized in that, The industrial water pipe assembly (3) includes: The main pipeline is equipped with a main pipeline inlet valve (33). A bypass pipeline (31) is arranged in parallel with the main pipeline and is equipped with a bypass inlet valve (32). Both the main pipeline and the bypass pipeline (31) can provide the industrial water. A filter element (34) is provided on the main pipeline and / or the bypass pipeline (31).

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