Circulating cleaning equipment for heat exchanger

Abstract

The utility model provides circulating cleaning equipment for a heat exchanger, and relates to the technical field of heat exchanger cleaning. The circulating cleaning equipment for the heat exchanger comprises a base, a lifting device, a tray, a cleaning tank and a circulating device, the lifting device, the cleaning tank and the circulating device are all arranged on the base, and the lifting device is connected with the tray so as to lift the tray; the tray is located in the cleaning tank and used for fixing the heat exchanger, and the cleaning tank is used for storing cleaning liquid; and the circulating device is provided with an input end and an output end, the input end communicates with the interior of the cleaning tank, the output end is used for communicating with a pipeline inlet of the heat exchanger, the cleaning time can be shortened, the working intensity can be reduced, and the cleaning efficiency can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchanger cleaning, and in particular to a heat exchanger circulation cleaning device. Background Art

[0002] The heat exchanger on the aircraft plays an important role in maintaining flight safety and comfort. The heat exchanger regulates the internal temperature of the aircraft by exchanging heat between the cabin air and the outside air, and ensures the normal operation of key equipment such as the engine.

[0003] When the heat exchanger is scaled or dusty, it will affect the heat transfer efficiency of the heat exchanger, especially the internal pipes of the heat exchanger need to be cleaned regularly. At present, heat exchangers are generally flushed manually, but manual flushing is time-consuming, labor-intensive and has low cleaning efficiency. Utility Model Content

[0004] The purpose of the present application includes, for example, providing a heat exchanger circulation cleaning device, which can reduce the cleaning time, reduce the work intensity, and improve the cleaning efficiency.

[0005] This application can be implemented as follows:

[0006] The present application provides a heat exchanger circulation cleaning device, which includes a base, a lifting device, a tray, a cleaning tank and a circulation device, wherein the lifting device, the cleaning tank and the circulation device are all arranged on the base, and the lifting device is connected to the tray to lift and lower the tray; the tray is located in the cleaning tank and is used to fix the heat exchanger, and the cleaning tank is used to store cleaning liquid; the circulation device is provided with an input end and an output end, the input end is connected to the interior of the cleaning tank, and the output end is used to communicate with the pipe inlet of the heat exchanger.

[0007] Optionally, the lifting device includes a hydraulic cylinder and a movable bracket, the hydraulic cylinder is arranged on the base, the hydraulic cylinder is connected to the movable bracket, and the movable bracket is connected to the pallet.

[0008] Optionally, the lifting device further includes a guide seat and a guide rod, wherein the guide seat is disposed on the base, the guide rod is slidably connected to the guide seat, the guide rod extends in a vertical direction, and the guide rod is connected to the movable bracket.

[0009] Optionally, the circulation device includes a circulation pump and a circulation pipeline connected to the circulation pump, the circulation pump is arranged on the base, and the input end and the output end are both arranged on the circulation pipeline.

[0010] Optionally, the circulation device further includes a filter and a shut-off valve, and the filter and the shut-off valve are both arranged in the circulation pipeline.

[0011] Optionally, the heat exchanger circulation cleaning equipment further includes a heating device, which is disposed in the cleaning tank and is used to heat the cleaning liquid in the cleaning tank.

[0012] Optionally, the heating device includes a plurality of heaters, each of the plurality of heaters is disposed in the cleaning tank, and the plurality of heaters extend into the cleaning tank.

[0013] Optionally, the power of the heater is 10-20KW.

[0014] Optionally, the heat exchanger circulation cleaning equipment further includes an air source and a plurality of air pipes connected to the air source, wherein the plurality of air pipes are all disposed on the cleaning tank, and the plurality of air pipes extend into the cleaning tank.

[0015] Optionally, each of the air pipes is evenly provided with a plurality of air outlet holes along its length direction.

[0016] The beneficial effects of the heat exchanger circulation cleaning equipment of the present application include, for example: in order to reduce the cleaning time, reduce the work intensity, and improve the cleaning efficiency, a heat exchanger circulation cleaning equipment is designed, and the heat exchanger circulation cleaning equipment includes a base, a lifting device, a tray, a cleaning tank and a circulation device, the lifting device, the cleaning tank and the circulation device are all arranged on the base, and the lifting device is connected to the tray to lift the tray; the tray is located in the cleaning tank and is used to fix the heat exchanger, and the cleaning tank is used to store the cleaning liquid; the circulation device is provided with an input end and an output end, the input end is connected to the interior of the cleaning tank, and the output end is used to connect to the pipe inlet of the heat exchanger. During the process of cleaning the heat exchanger, the tray is lifted to a certain height by a lifting device, at which time the heat exchanger is installed on the tray, and then the tray is lowered by the lifting device to partially immerse the heat exchanger in the cleaning liquid; then the circulation device is turned on, and the cleaning liquid in the cleaning tank is sent to the pipe inlet of the heat exchanger through the circulation device, and finally discharged into the cleaning tank through the pipe outlet of the heat exchanger, thereby realizing the circulation cleaning of the internal pipes of the heat exchanger, reducing the cleaning time, reducing the work intensity, and improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the overall structural schematic diagram of the heat exchanger circulation cleaning equipment;

[0019] Figure 2 This is a schematic diagram of the partial structure of the heat exchanger circulation cleaning equipment.

[0020] Icons: 1-base; 11-first base; 12-second base; 13-third base; 2-lifting device; 21-hydraulic cylinder; 22-movable bracket; 221-crossbeam; 222-connecting column; 23-guide seat; 24-power unit; 3-tray; 4-cleaning tank; 41-cover plate; 5-circulation device; 51-circulation pump; 52-circulation pipeline; 53-filter; 54-shut-off valve; 6-heating device. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0025] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0026] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0027] The inventors of the present application have discovered that when a heat exchanger is scaled or dusty, it will affect the heat transfer efficiency of the heat exchanger, especially the internal pipes of the heat exchanger need to be cleaned regularly. Currently, heat exchangers are generally flushed manually, but manual flushing is time-consuming, labor-intensive, and has low cleaning efficiency. The embodiments of the present application provide a heat exchanger circulation cleaning device, which can reduce the cleaning time, reduce the labor intensity, and improve the cleaning efficiency.

[0028] Please refer to Figure 1 , Figure 2 The heat exchanger circulation cleaning device provided in the embodiment of the present application includes a base 1, a lifting device 2, a tray 3, a cleaning tank 4 and a circulation device 5. The lifting device 2, the cleaning tank 4 and the circulation device 5 are all arranged on the base 1. The lifting device 2 is connected to the tray 3 to lift the tray 3; the tray 3 is located in the cleaning tank 4 and is used to fix the heat exchanger, and the cleaning tank 4 is used to store the cleaning liquid; the circulation device 5 is provided with an input end and an output end, the input end is connected to the inside of the cleaning tank 4, and the output end is used to communicate with the pipeline inlet of the heat exchanger.

[0029] In this embodiment, the base 1 includes an independent first base 11, a second base 12 and a third base 13, the lifting device 2 is arranged on the first base 11, the cleaning tank 4 is arranged on the second base 12, and the circulation device 5 is arranged on the third base 13; the pipe inlet of the heat exchanger is connected to the output end of the circulation device 5, and the pipe outlet of the heat exchanger is connected to the interior of the cleaning tank 4.

[0030] In other embodiments, the number of the base 1 is one, and the lifting device 2, the cleaning tank 4 and the circulation device 5 are all arranged on the same base 1. It can be understood that the number of the bases 1 can be determined according to actual working conditions.

[0031] During the process of cleaning the heat exchanger, the tray 3 is lifted to a certain height by the lifting device 2, and the heat exchanger is installed on the tray 3 at this time. Then the tray 3 is lowered by the lifting device 2, so that the heat exchanger is partially immersed in the cleaning liquid to soak the surface of the heat exchanger; then the circulation device 5 is turned on, and the cleaning liquid in the cleaning tank 4 is sent to the pipeline inlet of the heat exchanger through the circulation device 5, and finally discharged into the cleaning tank 4 through the pipeline outlet of the heat exchanger, so as to realize the circulation cleaning of the internal pipeline of the heat exchanger, reduce the cleaning time, reduce the work intensity, and improve the cleaning efficiency.

[0032] In this embodiment, the lifting device 2 includes a hydraulic cylinder 21 and a movable bracket 22 . The hydraulic cylinder 21 is disposed on the base 1 . The hydraulic cylinder 21 is connected to the movable bracket 22 . The movable bracket 22 is connected to the pallet 3 .

[0033] The hydraulic cylinder 21 is arranged on the first base 11, and a cover plate 41 is arranged on the top of the cleaning tank 4; the movable bracket 22 includes a connected beam 221 and a connecting column 222, the output shaft of the hydraulic cylinder 21 extends vertically upward and connects the beam 221, and the connecting column 222 passes downward through the cover plate 41 and extends to the interior of the cleaning tank 4 to connect the tray 3; the lifting device 2 also includes a power unit 24, which is connected to the hydraulic cylinder 21 to provide pressure to the hydraulic cylinder 21 to control the movement of the hydraulic cylinder 21.

[0034] Before cleaning the heat exchanger, start the power unit 24 first. The power unit 24 provides pressure to the hydraulic cylinder 21 to control the movement of the hydraulic cylinder 21. The hydraulic cylinder 21 lifts the pallet 3 to a certain height through the mobile bracket 22. At this time, it is convenient for the staff to use the workshop crane to install the heat exchanger on the pallet 3; after the heat exchanger is installed on the pallet 3, the hydraulic cylinder 21 lowers the pallet 3 through the mobile bracket 22, so that the heat exchanger is partially immersed in the cleaning liquid.

[0035] In this embodiment, the lifting device 2 also includes a guide seat 23 and a guide rod (not shown), the guide seat 23 is arranged on the base 1, the guide rod is slidably connected to the guide seat 23, the guide rod extends in the vertical direction, and the guide rod is connected to the movable bracket 22.

[0036] The guide seat 23 is arranged on the first base 11, and the guide rod is connected to the cross beam 221. During the movement of the mobile bracket 22, the cooperation between the guide rod and the guide seat 23 guides the mobile bracket 22, thereby improving the stability of the mobile bracket 22, the tray 3 and the heat exchanger during movement.

[0037] In this embodiment, the circulation device 5 includes a circulation pump 51 and a circulation pipeline 52 connected to the circulation pump 51 . The circulation pump 51 is disposed on the base 1 , and the input end and the output end are both disposed on the circulation pipeline 52 .

[0038] The circulation pump 51 is arranged on the third base 13, and the input end of the circulation pipeline 52 is connected with the interior of the cleaning tank 4 so that the cleaning liquid enters the circulation pipeline 52. The output end of the circulation pipeline 52 is connected with the pipeline inlet of the heat exchanger through a hose so as to pump the cleaning liquid into the pipeline of the heat exchanger to realize the circulation of the cleaning liquid and to ensure to a certain extent that the cleaning liquid maintains a certain liquid level and is in a flowing state.

[0039] In this embodiment, the circulation device 5 further includes a filter 53 and a shut-off valve 54 , and the filter 53 and the shut-off valve 54 are both arranged in the circulation pipeline 52 .

[0040] There are multiple filters 53, which are sequentially arranged on the circulation pipeline 52, so as to realize multi-stage filtration of the cleaning liquid and better ensure the cleanliness of the cleaning liquid. The shut-off valve 54 can disconnect the circulation pipeline 52 for easy maintenance.

[0041] In this embodiment, the heat exchanger circulation cleaning equipment further includes a heating device 6 , which is disposed in the cleaning tank 4 , and is used to heat the cleaning liquid in the cleaning tank 4 .

[0042] The heat exchanger circulation cleaning equipment also includes a control system, which is electrically connected to the heating device 6. The control system controls the output power of the heating device 6 through a thyristor so as to heat the cleaning liquid in the cleaning tank 4 to a set temperature.

[0043] In this embodiment, the heating device 6 includes a plurality of heaters, and the plurality of heaters are all disposed in the cleaning tank 4 , and the plurality of heaters extend into the cleaning tank 4 .

[0044] The multiple heaters are immersed in the cleaning liquid in the cleaning tank 4, and the control system is electrically connected to the multiple heaters at the same time, and the output power of the multiple heaters is controlled simultaneously through the thyristor.

[0045] In this embodiment, the power of the heater is 10-20KW.

[0046] Exemplarily, the number of heaters is four, and the power of the four heaters is 15KW. It can be understood that the number of heaters and the power of the heaters can be determined according to actual working conditions.

[0047] In this embodiment, the heat exchanger circulation cleaning device further includes an air source and a plurality of air pipes (not shown) connected to the air source. The plurality of air pipes are all disposed on the cleaning tank 4 , and the plurality of air pipes extend into the cleaning tank 4 .

[0048] Multiple air pipes are immersed in the cleaning liquid in the cleaning tank 4, and the air source is started to supply air to the air pipes. The multiple air pipes discharge the gas into the cleaning liquid, so that the cleaning liquid flows in the cleaning tank 4, thereby ensuring the uniformity of the cleaning liquid temperature during the heating process.

[0049] In this embodiment, each air pipe is evenly provided with a plurality of air outlet holes along its length direction.

[0050] Multiple air pipes are evenly arranged along the length direction of the cleaning tank 4, and the length direction of the air pipes is consistent with the width direction of the cleaning tank 4. Each air pipe is evenly provided with multiple air outlets along its own length direction. When the air source supplies air to the air pipe, the gas can be discharged into the cleaning liquid through the multiple air outlets on each air pipe, so that the cleaning liquid flows in the cleaning tank 4, further ensuring the uniformity of the cleaning liquid temperature.

[0051] In summary, the embodiment of the present application provides a heat exchanger circulation cleaning device, and the working process of the heat exchanger circulation cleaning device is roughly as follows: the hydraulic cylinder 21 lifts the tray 3 to a certain height through the mobile bracket 22. At this time, the staff uses the workshop crane to lift the heat exchanger onto the tray 3, and then the hydraulic cylinder 21 lowers the tray 3 and the heat exchanger through the mobile bracket 22, so that the heat exchanger is partially immersed in the cleaning liquid; then the circulation pump 51 is turned on, and the cleaning liquid in the cleaning tank 4 is sent to the pipeline inlet of the heat exchanger through the circulation pipeline 52, and finally discharged into the cleaning tank 4 through the pipeline outlet of the heat exchanger, so as to realize the circulation cleaning of the internal pipeline of the heat exchanger. At the same time, the filter 53 on the circulation pipeline 52 can filter impurities in the cleaning liquid. After the internal pipeline of the heat exchanger is cleaned, the circulation pump 51 is turned off, the tray 3 is lifted, the heat exchanger is removed from the tray 3, and then the heat exchanger is rinsed with clean water. Finally, the heat exchanger is dried, and the heat exchanger is leak tested and pressure drop tested after drying.

[0052] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A heat exchanger circulation cleaning device, characterized in that: The utility model comprises a base, a lifting device, a tray, a cleaning tank and a circulation device, wherein the lifting device, the cleaning tank and the circulation device are all arranged on the base, and the lifting device is connected with the tray to lift and lower the tray; the tray is located in the cleaning tank and is used to fix a heat exchanger, and the cleaning tank is used to store cleaning liquid; the circulation device is provided with an input end and an output end, the input end is communicated with the interior of the cleaning tank, and the output end is used to communicate with the pipeline inlet of the heat exchanger.

2. The heat exchanger circulation cleaning equipment according to claim 1, characterized in that: The lifting device comprises a hydraulic cylinder and a movable bracket, wherein the hydraulic cylinder is arranged on the base, the hydraulic cylinder is connected to the movable bracket, and the movable bracket is connected to the pallet.

3. The heat exchanger circulation cleaning equipment according to claim 2, characterized in that: The lifting device also includes a guide seat and a guide rod, wherein the guide seat is arranged on the base, the guide rod is slidably connected to the guide seat, the guide rod extends in a vertical direction, and the guide rod is connected to the movable bracket.

4. The heat exchanger circulation cleaning equipment according to claim 1, characterized in that: The circulation device comprises a circulation pump and a circulation pipeline connected to the circulation pump. The circulation pump is arranged on the base, and the input end and the output end are both arranged on the circulation pipeline.

5. The heat exchanger circulation cleaning equipment according to claim 4, characterized in that: The circulation device further comprises a filter and a shut-off valve, and the filter and the shut-off valve are both arranged in the circulation pipeline.

6. The heat exchanger circulation cleaning equipment according to claim 1, characterized in that: The heat exchanger circulation cleaning equipment also includes a heating device, which is arranged in the cleaning tank and is used to heat the cleaning liquid in the cleaning tank.

7. The heat exchanger circulation cleaning equipment according to claim 6, characterized in that: The heating device comprises a plurality of heaters, and the plurality of heaters are all arranged in the cleaning tank, and the plurality of heaters extend into the cleaning tank.

8. The heat exchanger circulation cleaning equipment according to claim 7, characterized in that: The power of the heater is 10-20KW.

9. The heat exchanger circulation cleaning equipment according to claim 1, characterized in that: The heat exchanger circulation cleaning equipment also includes an air source and a plurality of air pipes connected to the air source. The plurality of air pipes are all arranged on the cleaning tank, and the plurality of air pipes extend into the cleaning tank.

10. The heat exchanger circulation cleaning equipment according to claim 9, characterized in that: Each of the air pipes is evenly provided with a plurality of air outlet holes along its length direction.

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