High-pressure flushing device of flue gas heat exchanger

Abstract

The utility model relates to a high-pressure flushing device of a flue gas heat exchanger, and belongs to the technical field of flue gas heat exchangers, the high-pressure flushing device comprises a heat exchanger, a high-pressure pump located on the heat exchanger and a water pipe communicated with the high-pressure pump, a screen frame is further fixedly installed at the top of the heat exchanger, and the high-pressure pump and the water pipe are both located on the screen frame; the net frame is further provided with a reciprocating mechanism used for adjusting the water pipe, and the reciprocating mechanism comprises a driving piece fixedly installed in the middle of the net frame. According to the high-pressure flushing device of the flue gas heat exchanger, a high-pressure pump is fixed to the upper portion of an outer frame through a screen frame and a mounting rod, a sliding sleeve slides relative to the mounting rod, and a connecting rod is arranged to pull the sliding sleeve to move, so that a water pipe connected to the sliding sleeve can be movably flushed relative to the screen frame; and reciprocating movement and repeated flushing can be achieved, the movement range can be adjusted through the arranged shaft core, and the practicability of the device is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas heat exchangers, and in particular to a high-pressure flushing device for a flue gas heat exchanger. Background Art

[0002] A flue gas heat exchanger is a device used to recover heat from flue gas. It is commonly used in industrial production processes to transfer heat from flue gas to other media, such as water or air, to improve energy efficiency.

[0003] The working principle of the flue gas heat exchanger is to transfer the heat in the flue gas to the cooling medium by exchanging heat with the flue gas. This can reduce the temperature of the flue gas, reduce energy waste, and improve the thermal efficiency of the system.

[0004] Flue gas heat exchangers are mainly used in scenarios with large heat exchange rates such as power plants and steel mills. The operating environment of flue gas heat exchangers is complex and the operating cycle is long. The flue gas generated by the boiler contains a large amount of sulfide, which will synthesize sulfuric acid vapor. When the flue gas passes through the low-temperature heating surface, it will condense into acid droplets on the heat exchange plate surface, causing greater low-temperature corrosion. In order to ensure the stable operation of the equipment, the equipment needs to be flushed regularly.

[0005] At present, the high-pressure flushing devices in the existing technology are mostly composed of a high-pressure pump and a high-pressure water gun structure, and the high-pressure flushing device is set separately from the flue gas heat exchanger, which makes it very manpower-consuming to cover the entire flue gas heat exchanger for flushing. In this regard, a high-pressure flushing device for the flue gas heat exchanger is proposed to solve the above-mentioned problems. Utility Model Content

[0006] In response to the deficiencies in the prior art, the present application provides a high-pressure flushing device for a flue gas heat exchanger, which has the advantages that the flue gas heat exchanger can be easily loaded with the high-pressure flushing device for flushing.

[0007] To achieve the above objectives, the present application provides the following technical solution: a high-pressure flushing device for a flue gas heat exchanger, comprising a heat exchanger, a high-pressure pump located on the heat exchanger, and a water pipe connected to the high-pressure pump; a mesh frame is fixedly mounted on the top of the heat exchanger, and the high-pressure pump and the water pipe are both located on the mesh frame;

[0008] The screen frame is also provided with a reciprocating mechanism for adjusting the water pipe, and the reciprocating mechanism includes a driving member fixedly installed in the middle of the screen frame, a turntable fixedly installed on the power end of the driving member, and a connecting member connected to the turntable.

[0009] Furthermore, the heat exchanger includes an outer cover for external sealing, an outer frame with upper and lower seals fixed to the outer cover, and a transmission device is also provided on the outer cover. A heat pipe heat exchange disk is rotatably installed in the outer cover, and a transmission ring is fixed to the outside of the heat pipe heat exchange disk through support, and the transmission device is matched with the transmission ring.

[0010] Furthermore, a number of mounting rods are continuously mounted on the screen frame, the high-pressure pump is fixedly connected to the mounting rod on one side, a sliding sleeve is fixedly connected to the water pipe, and the sliding sleeve slides relative to the mounting rod.

[0011] Furthermore, the cross-sections of the sliding sleeve and the mounting rod are both rectangular.

[0012] Furthermore, the driving member is a motor used to pull the turntable to rotate, and a guide wheel is fixedly installed on the front of the turntable. The middle of the guide wheel is threaded with an axis core connected to the turntable, and the outside of the axis core is also threaded with a nut for locking the guide wheel.

[0013] Furthermore, the connecting member includes a connecting rod slidably mounted on the screen frame and a guide frame fixedly mounted in the middle of the connecting rod. The guide frame is vertically arranged in a capsule shape, and a sink groove is provided on the surface of the guide frame. The guide wheel corresponds to the sink groove.

[0014] Furthermore, a fixing rod is fixedly connected between the sliding sleeves located outside the mounting rod on one side, and the end of the connecting rod is fixedly connected to the fixing rod.

[0015] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0016] The high-pressure flushing device of the flue gas heat exchanger fixes the high-pressure pump above the outer frame by arranging a mesh frame and a mounting rod, slides relative to the mounting rod by arranging a sliding sleeve, and pulls the sliding sleeve to move by arranging a connecting rod, so that the water pipe connected to the sliding sleeve can move relative to the mesh frame for flushing. The connection of the turntable, the guide plate and the guide frame can realize reciprocating motion and repeated flushing, and the movable range can also be adjusted by the provided shaft core, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a schematic diagram of the structure of the heat pipe heat exchanger of this application;

[0019] Figure 3 A top view of the screen frame of this application;

[0020] Figure 4A front view of the turntable for this application;

[0021] Figure 5 This is a structural stereogram of the fixed rod connecting the sliding sleeve in this application.

[0022] In the figure: 1. Outer cover; 2. Outer frame; 3. Heat pipe heat exchange plate; 4. Transmission device; 5. Transmission ring; 6. Net frame; 7. Mounting rod; 8. Driving member; 9. Turntable; 10. Guide wheel; 11. Shaft core; 12. Nut; 13. Guide frame; 14. Sink; 15. Connecting rod; 16. Fixed rod; 17. High-pressure pump; 18. Water pipe; 19. Sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] See also Figures 1 to 5 In this embodiment, a high-pressure flushing device for a flue gas heat exchanger includes a heat exchanger, a high-pressure pump 17 located on the heat exchanger, and a water pipe 18 connected to the high-pressure pump 17.

[0025] Preferably, the heat exchanger includes an outer cover 1 for external sealing, an outer frame 2 sealed and fixed to the outer cover 1 at the upper and lower ends, a transmission device 4 is also provided on the outer cover 1, a heat pipe heat exchange disk 3 is rotatably installed in the outer cover 1, and a transmission ring 5 is fixed to the outside of the heat pipe heat exchange disk 3 through support, and the transmission device 4 cooperates with the transmission ring 5 to drive the heat pipe heat exchange disk 3 to rotate and exchange heat evenly.

[0026] In this embodiment, a screen frame 6 is fixedly mounted on the top of the outer frame 2 , and a high-pressure pump 17 and a water pipe 18 are both located on the screen frame 6 .

[0027] Preferably, a number of mounting rods 7 are continuously installed on the screen frame 6, the high-pressure pump 17 is fixedly connected to the mounting rod 7 on one side, and a sliding sleeve 19 is fixedly connected to the water pipe 18. The sliding sleeve 19 slides relative to the mounting rod 7 to drive the water pipe 18 to move relative to the screen frame 6 for flushing.

[0028] It can be understood that the cross-sections of the sliding sleeve 19 and the mounting rod 7 are both rectangular, so that the rotation of the sliding sleeve 19 relative to the mounting rod 7 is limited.

[0029] It should be noted that high-pressure water holes are evenly distributed on the bottom of the water pipe 18 for spraying cleaning water.

[0030] In a specific implementation, by connecting the high-pressure pump 17 to the cleaning water, the cleaning water can be pressurized and flow downward through the water pipe 18 to flush the heat pipe heat exchange disk 3, and the heat pipe heat exchange disk 3 can be rotated to expand the flushing surface.

[0031] The screen frame 6 in this embodiment is further provided with a reciprocating mechanism for adjusting the water pipe 18. The reciprocating mechanism can expand the flushing surface and further improve the flushing effect.

[0032] In this embodiment, the reciprocating mechanism includes a driving member 8 fixedly mounted in the middle of the screen frame 6 , a turntable 9 fixedly mounted on the power end of the driving member 8 , and a connecting member connected between the turntable 9 and the sliding sleeve 19 .

[0033] It should be noted that the driving member 8 is a motor used to pull the turntable 9 to rotate. A guide wheel 10 is fixedly installed on the front of the turntable 9. The middle of the guide wheel 10 is penetrated by an axis core 11 that is threadedly connected to the turntable 9. The outside of the axis core 11 is also threadedly installed with a nut 12 for locking the guide wheel 10.

[0034] By arranging the shaft core 11 and the nut 12 , the position of the guide wheel 10 on the turntable 9 can be adjusted.

[0035] It is additionally noted that the guide wheel 10 is located at a position of the turntable 9 that deviates from the center of the circle.

[0036] In this embodiment, the connecting part includes a connecting rod 15 slidably mounted on the screen frame 6 and a guide frame 13 fixedly mounted in the middle of the connecting rod 15. The guide frame 13 is vertically arranged in a capsule shape, and a sinking groove 14 is opened on the surface of the guide frame 13. The guide wheel 10 corresponds to the sinking groove 14.

[0037] This design enables the guide wheel 10 to slide vertically relative to the guide frame 13, and at the same time, the guide frame 13 is pulled by the guide wheel 10 to swing back and forth.

[0038] In this embodiment, the sliding sleeves 19 located on the outside of the mounting rod 7 on one side are fixedly connected to the fixing rod 16, and the end of the connecting rod 15 is fixedly connected to the fixing rod 16. The connecting rod 15 swings back and forth, so that the sliding sleeve 19 can pull the water pipe 18 to move relative to the mounting rod 7.

[0039] The working principle of the above embodiment is:

[0040] When cleaning is required, the cleaning water is connected to the high-pressure pump 17, and after being pressurized by the high-pressure pump 17, it is sent into the water pipe 18 toward the heat pipe heat exchange disk 3 below for flushing. At the same time, the driving member 8 is controlled to drive the turntable 9 to rotate. Under the rotation, the turntable 9 slides vertically relative to the guide frame 13 through the guide wheel 10 on the surface, and makes the guide frame 13 move back and forth in the horizontal direction. At this time, the connecting rod 15 connected to both sides of the guide frame 13 is fixedly connected to the fixed rod 16, thereby driving the water pipes 18 on both sides of the guide frame 13 to move back and forth, thereby improving the flushing effect.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0042] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-pressure flushing device for a flue gas heat exchanger, comprising a heat exchanger, a high-pressure pump (17) located on the heat exchanger, and a water pipe (18) connected to the high-pressure pump (17), characterized in that: A screen frame (6) is also fixedly mounted on the top of the heat exchanger, and the high-pressure pump (17) and the water pipe (18) are both located on the screen frame (6); The net frame (6) is also provided with a reciprocating mechanism for adjusting the water pipe (18), the reciprocating mechanism comprising a driving member (8) fixedly mounted in the middle of the net frame (6), a turntable (9) fixedly mounted on the power end of the driving member (8), and a connecting member connected to the turntable (9).

2. The high-pressure flushing device for a flue gas heat exchanger according to claim 1, characterized in that: The heat exchanger comprises an outer cover (1) for external sealing, an outer frame (2) sealed and fixed to the outer cover (1) at the upper and lower ends, a transmission device (4) being further provided on the outer cover (1), a heat pipe type heat exchange disk (3) being rotatably mounted in the outer cover (1), a transmission ring (5) being fixed to the outside of the heat pipe type heat exchange disk (3) by support, and the transmission device (4) being matched with the transmission ring (5).

3. The high-pressure flushing device for a flue gas heat exchanger according to claim 1, characterized in that: A plurality of mounting rods (7) are continuously mounted on the screen frame (6); the high-pressure pump (17) is fixedly connected to the mounting rod (7) on one side; a sliding sleeve (19) is fixedly connected to the water pipe (18); and the sliding sleeve (19) slides relative to the mounting rod (7).

4. The high-pressure flushing device for a flue gas heat exchanger according to claim 3, characterized in that: The cross-sections of the sliding sleeve (19) and the mounting rod (7) are both rectangular.

5. The high-pressure flushing device for a flue gas heat exchanger according to claim 3, characterized in that: The driving member (8) is a motor used to pull the turntable (9) to rotate. A guide wheel (10) is fixedly installed on the front of the turntable (9). A shaft core (11) threadedly connected to the turntable (9) passes through the middle of the guide wheel (10). A nut (12) for locking the guide wheel (10) is also threadedly installed on the outside of the shaft core (11).

6. The high-pressure flushing device for a flue gas heat exchanger according to claim 5, characterized in that: The connecting member comprises a connecting rod (15) slidably mounted on the screen frame (6) and a guide frame (13) fixedly mounted in the middle of the connecting rod (15); the guide frame (13) is vertically arranged in a capsule shape; a sinking groove (14) is provided on the surface of the guide frame (13); and the guide wheel (10) corresponds to the sinking groove (14).

7. The high-pressure flushing device for a flue gas heat exchanger according to claim 6, characterized in that: A fixing rod (16) is fixedly connected between the sliding sleeves (19) located outside the installation rod (7) on one side, and the end of the connecting rod (15) is fixedly connected to the fixing rod (16).

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