Automatic cleaning mechanism for air pre-heater

By designing an automatic cleaning mechanism for the air preheater, and utilizing a combination of high-pressure nozzles and a rotating body, the problem of limited cleaning of large-sized heat exchange elements in existing devices has been solved, achieving efficient all-round cleaning and improving the cleaning effect.

CN223769360UActive Publication Date: 2026-01-06DEZHOU RENTONGDA FLUID TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520178052.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-01-06
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

Existing air preheater cleaning devices cannot effectively clean large heat exchange elements, resulting in limitations in cleaning equipment.

Method used

An automatic cleaning mechanism for an air preheater was designed. By combining a high-pressure nozzle and a rotating body, water is delivered to the high-pressure nozzle using a water pump to achieve high-pressure flushing of the air preheater's interior. The rotating body and nozzle are driven to rotate synchronously by an electric motor to achieve all-round cleaning.

Benefits of technology

It improves cleaning efficiency, effectively removes deposits inside the air preheater, reduces cleaning time, adapts to air preheaters of different sizes, and improves cleaning results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an automatic cleaning mechanism for an air pre-heater, which belongs to the technical field of industrial cleaning equipment and comprises a fixed plate, a speed reducer is arranged on one side of the fixed plate, a rotating body is rotatably arranged in the speed reducer, the bottom end of the rotating body is vertically connected with the output end of a motor, and a sleeve is arranged at the top end of the rotating body. A connecting pipe is arranged at the top end of the sleeve, a T-shaped pipe is in threaded connection with the top end of the connecting pipe, L-shaped pipes are connected to the two sides of the T-shaped pipe, a high-pressure spray head is arranged at the top end of each L-shaped pipe, a protective cover is arranged at the top end of each L-shaped pipe, a water inlet pipe is arranged on one side of the sleeve, and a water outlet pipe of a water suction pump is arranged in the water inlet pipe in a clamped mode; the cleaning device has the advantages that water in the water bucket is pumped by the water pump and enters the water inlet pipe, the water passes through the connecting pipe and the T-shaped pipe and is finally conveyed to the L-shaped pipe to be sprayed out by the high-pressure spray head, and the motor drives the rotating body, the connecting pipe, the T-shaped pipe, the L-shaped pipe and the high-pressure spray head to rotate synchronously for cleaning.
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Description

TECHNICAL FIELD

[0001] The utility model relates to industrial cleaning equipment technical field, specifically, relate to a kind of air preheater automatic cleaning mechanism. BACKGROUND

[0002] Air preheater is usually used in boiler system in thermal power plant, responsible for improving the temperature of air, to improve combustion efficiency and reduce pollutant emissions, with the passage of time, air preheater can be contaminated, affect its performance, need to clean air preheater equipment regularly, remove the ash layer in air preheater.

[0003] Among them, the application number CN201910553966.0 disclosed a kind of air preheater offline cleaning device and its working method are increasingly mature technology, air preheater offline cleaning device, through motor drives winding roller rotation, can lift heat exchange element, utilize annular shell transport to the top of cleaning pool, utilize first showerhead and spray out alkaline material water, then brush with brush, utilize second showerhead to heat exchange element and wash, after washing, utilize fan and dry with hot air, so that ammonium bisulfate scale on heat exchange element can be cleaned, improve the rate of cleaning, ensure the quality of cleaning, the cleaning effect of the device is good, convenient to use, it is suitable for use.

[0004] Based on this, agree with the advantages of the above products, but there are still the following defects:

[0005] The cleaning device is rotated to the top of the fine cleaning pool, and the second showerhead is used to wash the heat exchange element, but for the fine cleaning pool with heat exchange element size greater than, the cleaning device is limited. INVENTION CONTENTS

[0006] The utility model aims at providing a kind of air preheater automatic cleaning mechanism to solve the problem that cleaning device is limited in the above background art.

[0007] The utility model embodiment provides a kind of air preheater automatic cleaning mechanism, including bottom plate, the top of the bottom plate is provided with cleaning device;

[0008] Among them, cleaning device includes fixed plate block, one side of the fixed plate block is provided with speed reducer, rotating body is rotationally arranged in the inside of the speed reducer, the bottom of the rotating body is vertically connected with the output end of motor, the top of the rotating body is provided with sleeve pipe, the top of the sleeve pipe is provided with connecting pipe, the top of the connecting pipe is screw threadedly connected with T pipe, the two sides of the T pipe are connected with L pipe, the top of the L pipe is provided with high-pressure spray head and is provided with protective cover at the top, one side of the sleeve pipe is provided with inlet pipe, the outlet pipe of water pump is clamped in the inside of the inlet pipe, and the water pump is located in the inside of bucket.

[0009] In the embodiment, the water pump draws the water in the water bucket through the water outlet pipe into the water inlet pipe of the sleeve pipe, passes through the connecting pipe and the T-shaped pipe, and is finally transported to the L-shaped pipe to be sprayed by the high-pressure spray head, the high-pressure spray head performs high-pressure flushing on the inside of the air preheater, and rotation of the motor drives the rotating body, the connecting pipe, the T-shaped pipe and the L-shaped pipes on the two sides and the high-pressure spray head to rotate synchronously, so that the cleaning device can be rotated and cleaned.

[0010] In one embodiment of the utility model, the top of the bottom plate is provided with an outer box, a through hole is formed in the top of the outer box, the top of the sleeve pipe is connected to the bottom of the through hole of the outer box, and the connecting pipe is rotatably arranged at the top of the sleeve pipe.

[0011] In the embodiment, the cleaning device is arranged in the outer box, dust generated by the cleaning device is avoided, the through hole cooperates with the sleeve pipe, and the connecting pipe is conveniently screwed into the sleeve pipe.

[0012] In one embodiment of the utility model, the top of the water bucket is externally and fixedly connected with a clamping ring, and the clamping ring is clamped with a lifting handle in the middle.

[0013] In the embodiment, the lifting handle is convenient for the staff to lift and move the water bucket.

[0014] In one embodiment of the utility model, one side of the outer box is provided with a push rod, the front of the outer box is hingedly connected with a box door, door grooves are formed in the proximal ends of the box door, and air grooves are uniformly formed in the back of the outer box.

[0015] In the embodiment, the push rod is convenient for the staff to push and move the outer box, the door grooves are convenient for opening and closing the box door, and the air grooves can accelerate heat dissipation.

[0016] In one embodiment of the utility model, the bottom of the bottom plate is provided with a fixed universal wheel at each corner.

[0017] In the embodiment, the fixed universal wheel is convenient for the staff to push the cleaning mechanism to a specified position and lock.

[0018] In one embodiment of the utility model, the front of the fixed plate is provided with a switch panel, the front of the switch panel is respectively provided with a cleaning switch and a water pump switch, and the switch panel is electrically connected with an external power supply.

[0019] In the embodiment, the switch panel provides a power supply for the electrical equipment, and the independent switch provides independent protection for the electrical equipment.

[0020] Compared with the prior art, the utility model has the advantages of:

[0021] The water pump extracts the water in the water bucket through the water outlet pipe into the water inlet pipe of the sleeve pipe, through the connecting pipe at the top end of the sleeve pipe and the T-shaped pipe, and finally delivers the water to the L-shaped pipe to be sprayed out by the high-pressure spray head, the high-pressure spray head performs high-pressure flushing on the inside of the air preheater, the high-pressure spray head can effectively remove the deposits inside the air preheater through a large amount of rapid water flow, reduce the cleaning time, and improve the cleaning effect, since the connecting pipe and the T-shaped pipe are connected in a threaded manner, the T-shaped pipe is convenient to disassemble and replace other types of water pipes, the rotation of the motor drives the rotating body, the connecting pipe, the T-shaped pipe and the L-shaped pipes on both sides and the high-pressure spray head to rotate synchronously, so that the cleaning device can be rotated and cleaned, and the air preheater can also be efficiently cleaned around. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with embodiments of the present application, and do not constitute a limitation on the present application. In the drawings:

[0023] Figure 1 It is a structure schematic view of the cleaning mechanism of the present application;

[0024] Figure 2 It is a structure schematic view of the outer box of the present application;

[0025] Figure 3 It is a sectional structure schematic view of the cleaning device of the present application.

[0026] In the drawings: 100, base plate; 110, outer box; 111, through hole; 112, push rod; 113, box door; 114, air vent groove; 115, universal wheel;

[0027] 200, cleaning device; 210, fixed plate block; 211, speed reducer; 212, rotating body; 213, motor; 214, sleeve pipe; 215, connecting pipe; 216, T-shaped pipe; 217, L-shaped pipe; 218, high-pressure spray head; 219, water inlet pipe; 220, water pump; 221, water bucket; 222, handle; 223, switch panel. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] EMBODIMENT

[0030] Please refer to Figure 1 -Figure 3 The utility model provides a kind of air preheater automatic cleaning mechanism, including bottom plate 100, and the top of bottom plate 100 is provided with cleaning device 200;

[0031] Specific please refer to Figure 3 Cleaning device 200 includes fixed slab 210, and one side of fixed slab 210 is provided with speed reducer 211, and speed reducer 211 is rotatably provided with rotating body 212 inside, and the bottom end of rotating body 212 is vertically connected with the output end of motor 213, and the top of rotating body 212 is provided with sleeve pipe 214, and the top of sleeve pipe 214 is provided with connecting pipe 215, and the top of connecting pipe 215 is threadedly connected with T-shaped pipe 216, and both sides of T-shaped pipe 216 are connected with L-shaped pipe 217, and the top of L-shaped pipe 217 is provided with high-pressure spray head 218 and is provided with protective cover at the top, and one side of sleeve pipe 214 is provided with water inlet pipe 219, and the inside of water inlet pipe 219 is clamped with the outlet pipe of water pump 220, and water pump 220 is located inside bucket 221.

[0032] Specific one embodiment, please refer to Figure 3 By starting cleaning switch, water pump 220 extracts water inside bucket 221 through outlet pipe into the water inlet pipe 219 of sleeve pipe 214, passes through connecting pipe 215 and T-shaped pipe 216 at the top of sleeve pipe 214, and finally water is delivered to L-shaped pipe 217 and is sprayed by high-pressure spray head 218, and high-pressure spray head 218 carries out high-pressure flushing to the inside of air preheater, and high-pressure spray head 218 can effectively remove the sediment inside air preheater by a large amount of, fast water flow, reduce cleaning time, improve cleaning effect, since connecting pipe 215 and T-shaped pipe 216 adopt the mode of thread connection, the disassembly of T-shaped pipe 216 is convenient, and other types of water pipes are replaced, and the rotation of motor 213 drives rotating body 212, connecting pipe 215, T-shaped pipe 216 and the synchronous rotation of both sides of L-shaped pipe 217 and high-pressure spray head 218, so that rotating cleaning can be carried out to cleaning device 200, so that the periphery of air preheater can also be efficiently cleaned.

[0033] Please refer to Figure 2 The top of bottom plate 100 is provided with outer box 110, and the top of outer box 110 is provided with through hole 111, and the top of sleeve pipe 214 is connected to the bottom end of the through hole 111 of outer box 110, and connecting pipe 215 is rotatably arranged at the top of sleeve pipe 214.

[0034] Specific one embodiment, please refer to Figure 2 By cleaning device 200 in the inside of outer box 110, avoid that cleaning device 200 produces dust when not being used, and through hole 111 cooperates with sleeve pipe 214, to facilitate the thread installation of connecting pipe 215 in the inside of sleeve pipe 214.

[0035] Please refer to Figure 3The top end of the water bucket 221 is externally fixedly connected with a clamping ring, and a handle 222 is clamped in the middle of the clamping ring.

[0036] In a specific embodiment, please refer to Figure 3 The handle 222 is clamped by the clamping ring, which facilitates the staff to lift the water bucket 221 and move it.

[0037] Please refer to Figure 2 One side of the outer box 110 is provided with a push rod 112, and the front of the outer box 110 is hingedly connected with a box door 113, the box door 113 is provided with a door groove near the end, and the back of the outer box 110 is uniformly provided with a ventilation groove 114.

[0038] In a specific embodiment, please refer to Figure 2 The push rod 112 facilitates the staff to push the outer box 110 to move, the door groove facilitates the opening and closing of the box door 113, and the ventilation groove 114 can accelerate the heat dissipation, so that the heat generated by the motor 213 during operation can be dissipated, and the service life of the motor 213 is improved.

[0039] Please refer to Figure 2 The bottom end of the bottom plate 100 is provided with a fixed universal wheel 115.

[0040] In a specific embodiment, please refer to Figure 2 The fixed universal wheel 115 facilitates the staff to push the cleaning mechanism to the specified position and lock, so that the cleaning mechanism has stability.

[0041] Please refer to Figure 3 The front of the fixed plate 210 is provided with a switch panel 223, the front of the switch panel 223 is provided with a cleaning switch and a water pump switch respectively, and the switch panel 223 is electrically connected with an external power supply.

[0042] In a specific embodiment, please refer to Figure 3 The switch panel 223 provides power supply for the electrical equipment, and the independent switch provides independent protection for the electrical equipment.

[0043] The automatic cleaning mechanism of the air preheater provided by the utility model has the following specific use mode:

[0044] Before use: the staff inserts the T-shaped pipe 216 into the through hole 111 of the outer box 110, threadedly rotates and installs the top end of the sleeve pipe 214, loads water in the water bucket 221, clamps the water outlet pipe of the water pump 220 in the water inlet pipe 219, connects the external power supply, opens the switch panel 223, and then opens the cleaning switch and the water pump switch in sequence.

[0045] In use: the water pump 220 extracts the water in the water bucket 221 through the water outlet pipe into the water inlet pipe 219 of the sleeve pipe 214, passes through the connecting pipe 215 and the T-shaped pipe 216 at the top end of the sleeve pipe 214, and finally transports the water to the L-shaped pipe 217 to be sprayed out by the high-pressure spray head 218, the high-pressure spray head 218 performs high-pressure washing on the inside of the air preheater, the high-pressure spray head 218 can effectively remove the deposits inside the air preheater through a large amount of rapid water flow, reduces the cleaning time, improves the cleaning effect, since the connecting pipe 215 and the T-shaped pipe 216 are connected in a threaded manner, the T-shaped pipe 216 is convenient to disassemble, and other types of water pipes can be replaced, the rotation of the motor 213 drives the synchronous rotation of the rotating body 212, the connecting pipe 215, the T-shaped pipe 216 and the L-shaped pipes 217 and the high-pressure spray head 218 on both sides, so that the rotating cleaning of the cleaning device 200 can be realized, and the periphery of the air preheater can also be efficiently cleaned.

[0046] The contents not described in detail in the description belong to the prior art known to those skilled in the art, although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An air preheater automatic cleaning mechanism, characterized by, Include: The bottom plate (100), the top end of the bottom plate (100) is provided with cleaning device (200); Wherein, the cleaning device (200) includes fixed plate (210), one side of the fixed plate (210) is provided with speed reducer (211), the inside of the speed reducer (211) is rotatably provided with rotating body (212), the bottom end of the rotating body (212) is vertically connected with the output end of the motor (213), the top end of the rotating body (212) is provided with sleeve (214), the top end of the sleeve (214) is provided with connecting pipe (215), the top end of the connecting pipe (215) is threadedly connected with T type pipe (216), both sides of the T type pipe (216) are connected with L type pipe (217), the top end of the L type pipe (217) is provided with high pressure spray head (218) and is provided with protective cover at the top end, one side of the sleeve (214) is provided with water inlet pipe (219), the inside of the water inlet pipe (219) is clamped with the outlet pipe of the water pump (220), the water pump (220) is located in the inside of the bucket (221).

2. The air preheater automatic cleaning mechanism according to claim 1, characterized in that: The top end of the bottom plate (100) is provided with outer box (110), the top end of the outer box (110) is provided with through hole (111), the top end of the sleeve (214) is connected to the bottom end of the outer box (110) through hole (111), the connecting pipe (215) is rotatably arranged at the top end of the sleeve (214).

3. The air preheater automatic cleaning mechanism according to claim 1, characterized in that: The top end of the bucket (221) is fixedly connected with the clamping ring outside, the clamping ring is clamped with the handle (222) in the middle.

4. The air preheater automatic cleaning mechanism according to claim 2, characterized in that: One side of the outer box (110) is provided with push rod (112), the front of the outer box (110) is hinged with box door (113) through hinge, the end of the box door (113) is provided with door slot, the back of the outer box (110) is evenly provided with air slot (114).

5. The air preheater automatic cleaning mechanism according to claim 1, characterized in that: The bottom end of the bottom plate (100) is provided with the fixed universal wheel (115) at four corners.

6. An air preheater automatic cleaning mechanism according to claim 1, characterized in that: The front of the fixed plate (210) is provided with switch panel (223), the front of the switch panel (223) is respectively provided with cleaning switch and water pump switch, the switch panel (223) is electrically connected with external power supply.

Citation Information

Patent Citations

  • An offline cleaning device for air preheaters and its working method

    CN110360871B