A descaling device for an air preheater

Abstract

The utility model provides a kind of descaling device of air preheater, including support frame, support frame inboard is fixedly installed with support plate near left side, the support plate top is fixedly installed with storage box, the pump machine is fixedly installed with first conveying pipe in support frame inboard and at storage box bottom, the support frame top is provided with descaling assembly, lifting mechanism is adjusted descaling height by means of electric telescopic rod, without artificial climbing or cushioning operation, avoid the risk of aerial work when artificial cleaning, telescopic mechanism drives the horizontal movement cleaning of spray head in air preheater inside, without artificial entering the inside of narrow and bad equipment, effectively improve the working environment of operator, combine multiple spray heads and spray cleaning fluid simultaneously, both expand single cleaning area, and can carry out comprehensive flushing to the fouling of different horizontal positions in equipment inside, greatly shorten cleaning time.

Description

Technical Field

[0001] This utility model relates to the technical field of preheater cleaning equipment, and in particular to a descaling device for an air preheater. Background Technology

[0002] An air preheater is a device that uses hot flue gas to heat air to a certain temperature. It is commonly used in industrial production, heating systems, boiler systems, and other fields. Its main function is to increase the temperature of air before it enters the burner or other systems to increase combustion efficiency or system efficiency. Air preheaters typically utilize waste heat or other heat sources to heat the air entering the system, thereby reducing energy consumption.

[0003] After prolonged operation, air preheaters may develop severe scaling, which increases the operating resistance of the fan, reduces the thermal conductivity of the heat storage elements, affects heat exchange efficiency, consumes a lot of electricity, and can even cause boiler shutdown in severe cases of ash blockage. The usual method of manually cleaning the air preheater by using a handheld high-pressure water gun is time-consuming, labor-intensive, and reduces cleaning efficiency.

[0004] Therefore, this utility model proposes a descaling device for an air preheater to solve the problems existing in the prior art. Utility Model Content

[0005] To address the aforementioned problems, this utility model proposes a descaling device for air preheaters to solve the problem that the existing method of manually rinsing the air preheater with a handheld high-pressure water gun is time-consuming, labor-intensive, and reduces cleaning efficiency.

[0006] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a descaling device for an air preheater, including a support frame, a support plate fixedly installed on the inner side of the support frame near the left side, a storage tank fixedly installed on the top of the support plate, a pump fixedly installed on the inner side of the support frame and at the bottom of the storage tank, a first conveying pipe fixedly installed on the left side of the pump, the other end of the first conveying pipe being fixedly connected to the left side of the storage tank, a second conveying pipe fixedly installed on the right side of the pump, and a descaling component provided on the top of the support frame and at the right side of the storage tank.

[0007] A further improvement is that the descaling component includes a support base, the bottom of which is fixedly connected to the top of a support frame, a lifting mechanism is provided on the inner side of the support base, and a telescopic mechanism is provided on the top of the lifting mechanism.

[0008] A further improvement is that the lifting mechanism includes a lifting seat, two connecting blocks are fixedly installed on the front and rear sides of the lifting seat, a lifting rod is fixedly installed at the bottom of the connecting blocks, a lifting hole adapted to the lifting rod is opened on the inner side of the support seat, and a notch adapted to the connecting block is opened on the inner side of the support seat and at the top of the lifting hole.

[0009] A further improvement is that the telescopic mechanism includes a telescopic seat, the bottom of which is fixedly connected to the top of the lifting seat, an installation seat is slidably connected to the inner side of the telescopic seat, a connecting sleeve is provided through the center of the inner side of the installation seat and fixedly connected thereto, a plurality of nozzles are fixedly installed on the surface of the connecting sleeve near the right end, and the right end of the second delivery pipe is fixedly connected to the left end of the connecting sleeve.

[0010] A further improvement is made in that: a lead screw is rotatably connected to the inner side of the telescopic seat and located at the bottom of the mounting seat; a threaded block is fitted on the surface of the lead screw and threadedly connected thereto; the top of the threaded block is fixedly connected to the bottom of the mounting seat; a drive motor for driving the lead screw to rotate is fixedly installed on the left side of the telescopic seat; fixed blocks are fixedly installed on the front and rear sides of the mounting seat; a sliding rod is fixedly installed on the left side of the fixed blocks; and a sliding hole is provided on the inner side of the telescopic seat for the sliding rod to slide left and right.

[0011] Further improvements include: multiple casters are fixedly installed at the bottom of the support frame, and a water injection pipe is fixedly installed at the top of the storage box.

[0012] The beneficial effects of this utility model are as follows: 1. The lifting mechanism uses an electric telescopic rod to adjust the descaling height, eliminating the need for manual climbing or raising the operator, thus avoiding the risks of working at heights during manual cleaning. The telescopic mechanism drives the nozzle to move horizontally inside the air preheater for cleaning, eliminating the need for manual entry into the narrow and harsh interior of the equipment, effectively improving the working environment for operators and reducing safety hazards.

[0013] 2. The telescopic mechanism drives the nozzle to move horizontally, and the cleaning fluid is sprayed from multiple nozzles at the same time, which not only expands the cleaning area in a single operation, but also thoroughly flushes the scale in different horizontal positions inside the equipment, greatly shortening the cleaning time and ensuring the subsequent heat exchange efficiency of the air preheater. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a side sectional view of the descaling component of this utility model.

[0016] Figure 3 This is a side sectional view of the telescopic mechanism of this utility model.

[0017] Figure 4 This is a side sectional view of the telescopic seat and mounting base of this utility model.

[0018] The components include: 1. Support frame; 2. Support plate; 3. Storage tank; 4. Pump; 5. First delivery pipe; 6. Second delivery pipe; 7. Descaling assembly; 71. Support base; 72. Lifting mechanism; 721. Lifting seat; 722. Connecting block; 723. Lifting rod; 724. Lifting hole; 725. Electric telescopic rod; 73. Telescopic mechanism; 731. Telescopic seat; 732. Mounting base; 733. Connecting sleeve; 734. Nozzle; 735. Lead screw; 736. Threaded block; 737. Drive motor; 738. Sliding rod; 8. Casters; 9. Water injection pipe. Detailed Implementation

[0019] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0020] according to Figure 1-4 As shown, this embodiment proposes a solution: a descaling device for an air preheater, including a support frame 1, a support plate 2 fixedly installed on the inner side of the support frame 1 near the left side, a storage tank 3 fixedly installed on the top of the support plate 2, a pump 4 fixedly installed on the inner side of the support frame 1 and at the bottom of the storage tank 3, a first conveying pipe 5 fixedly installed on the left side of the pump 4, the other end of the first conveying pipe 5 fixedly connected to the left side of the storage tank 3, a second conveying pipe 6 fixedly installed on the right side of the pump 4, and a descaling component 7 provided on the top of the support frame 1 and at the right side of the storage tank 3.

[0021] In this implementation case, pump 4 is started, and pump 4 draws cleaning fluid from storage tank 3 through the first delivery pipe 5 on the left, and then delivers the cleaning fluid to the subsequent descaling component 7 through the second delivery pipe 6 on the right, providing a continuous source of cleaning fluid for the descaling operation. Through the function of descaling component 7, the descaling height can be flexibly adjusted, eliminating the need for manual climbing or raising the operation, solving the problem of difficulty in reaching the scaled areas at different heights of the air preheater during manual cleaning, expanding the descaling range. Compared with the unstable operation and incomplete cleaning that are prone to occur when manually cleaning with a handheld water gun at different heights, it can ensure that the scaled position can be accurately targeted at each height, improving the accuracy of descaling.

[0022] The descaling component 7 includes a support base 71, with a support frame 1 fixedly connected to the bottom of the support base 71. A lifting mechanism 72 is provided inside the support base 71, and a telescopic mechanism 73 is provided at the top of the lifting mechanism 72. The lifting mechanism 72 includes a lifting seat 721, with two connecting blocks 722 fixedly installed on the front and rear sides of the lifting seat 721. A lifting rod 723 is fixedly installed at the bottom of the connecting blocks 722. A lifting hole 724 adapted to the lifting rod 723 is opened inside the support base 71, and a notch adapted to the connecting block 722 is opened inside the support base 71 and at the top of the lifting hole 724. When it is necessary to adjust the height of the descaling component to accommodate air pre-filling... When scale buildup occurs at different heights on the air preheater, the electric telescopic rod 725 starts working, driving the lifting seat 721 to move up and down. Through the action of the lifting rod 723 and the lifting hole 724, the lifting seat 721 moves stably during the lifting process, realizing the adjustment of the height of the telescopic mechanism 73. The descaling height can be flexibly adjusted without the need for manual climbing or raising the operation. This solves the problem that it is difficult to reach the scaled areas at different heights on the air preheater when cleaning manually, and expands the descaling range. Compared with the unstable operation and incomplete cleaning that are prone to occur when cleaning with a handheld water gun at different heights, it can ensure that the scaled position can be accurately targeted at each height, improving the accuracy of descaling.

[0023] The telescopic mechanism 73 includes a telescopic seat 731, the bottom of which is fixedly connected to the top of the lifting seat 721. An installation seat 732 is slidably connected to the inner side of the telescopic seat 731. A connecting sleeve 733 is provided through the center of the inner side of the installation seat 732 and is fixedly connected to it. Multiple nozzles 734 are fixedly installed on the surface of the connecting sleeve 733 near the right end. The right end of the second delivery pipe 6 is fixedly connected to the left end of the connecting sleeve 733. After the cleaning fluid delivered by the second delivery pipe 6 enters the connecting sleeve 733, it is sprayed out from the multiple nozzles 734 near the right end of the surface of the connecting sleeve 733 to flush the scaled area inside the air preheater. The multiple nozzles 734 spray cleaning fluid at the same time, which expands the cleaning area in a single operation.

[0024] A lead screw 735 is rotatably connected to the inner side of the telescopic base 731 and located at the bottom of the mounting base 732. A threaded block 736 is fitted onto the surface of the lead screw 735 and threadedly connected thereto. The top of the threaded block 736 is fixedly connected to the bottom of the mounting base 732. A drive motor 737 for driving the lead screw 735 to rotate is fixedly installed on the left side of the telescopic base 731. Fixed blocks are fixedly installed on the front and rear sides of the mounting base 732. A sliding rod 738 is fixedly installed on the left side of the fixed blocks. A sliding hole is provided on the inner side of the telescopic base 731 for the sliding rod 738 to slide left and right. Motor 737 drives lead screw 735 to rotate. Threaded block 736 on the surface of lead screw 735 is threadedly connected to lead screw 735, which in turn drives mounting base 732 to slide inside telescopic base 731. Connecting sleeve 733 fixed inside mounting base 732 moves horizontally synchronously with mounting base 732, realizing horizontal movement and cleaning of nozzle 734 inside air preheater. This eliminates the need for manual entry into the air preheater, solving the problem of entering confined spaces and harsh working environments during manual cleaning, and protecting the health of operators.

[0025] Multiple casters 8 are fixedly installed at the bottom of the support frame 1, and a water injection pipe 9 is fixedly installed at the top of the storage tank 3. The multiple casters 8 fixedly installed at the bottom of the support frame 1 can roll freely on the ground. By pushing the support frame 1, the entire descaling device can be moved with the casters 8, realizing the transfer of the device between different air preheater equipment or different cleaning positions of the same equipment.

[0026] The above embodiments disclose a descaling device for an air preheater. By pushing the support frame 1, the entire descaling device moves with the casters 8, enabling the device to be transferred between different air preheater units or different cleaning positions on the same unit. The electric telescopic rod 725 starts working, driving the lifting seat 721 to move up and down. Through the action of the lifting rod 723 and the lifting hole 724, the lifting seat 721 moves stably during lifting, allowing for height adjustment of the telescopic mechanism 73. This allows for flexible adjustment of the descaling height, eliminating the need for manual climbing or elevation, solving the problem of difficulty in reaching scaled areas at different heights of the air preheater during manual cleaning, and expanding the descaling range. Compared to the instability and incomplete cleaning that often occurs when manually cleaning with a handheld water gun at different heights, this device ensures precise targeting of the scaled area at each height, improving descaling accuracy. The drive motor 737 is then activated, driving the electric... The machine 737 drives the lead screw 735 to rotate. The threaded block 736 on the surface of the lead screw 735 is threadedly connected to the lead screw 735, which in turn drives the mounting base 732 to slide inside the telescopic base 731. The connecting sleeve 733 fixed inside the mounting base 732 moves horizontally synchronously with the mounting base 732, realizing the horizontal movement of the nozzle 734 inside the air preheater for cleaning. There is no need for manual entry into the air preheater, which solves the problem of having to enter a narrow space and a harsh working environment when cleaning manually, and protects the health of the operators. The pump 4 is started. The pump 4 draws cleaning fluid from the storage tank 3 through the first delivery pipe 5 on the left. The cleaning fluid delivered by the second delivery pipe 6 enters the connecting sleeve 733 and is sprayed out from multiple nozzles 734 near the right end of the surface of the connecting sleeve 733 to flush the scaled area inside the air preheater. Multiple nozzles 734 spray cleaning fluid at the same time, expanding the cleaning area in a single operation.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fouling removal device for an air preheater, characterized by: The system includes a support frame (1), a support plate (2) is fixedly installed on the inner side of the support frame (1) near the left side, a storage box (3) is fixedly installed on the top of the support plate (2), a pump (4) is fixedly installed on the inner side of the support frame (1) and at the bottom of the storage box (3), a first delivery pipe (5) is fixedly installed on the left side of the pump (4), the other end of the first delivery pipe (5) is fixedly connected to the left side of the storage box (3), a second delivery pipe (6) is fixedly installed on the right side of the pump (4), and a descaling component (7) is provided on the top of the support frame (1) and at the right side of the storage box (3). The descaling component (7) includes a support base (71), the bottom of the support base (71) is fixedly connected to the top of the support frame (1), a lifting mechanism (72) is provided on the inner side of the support base (71), and a telescopic mechanism (73) is provided on the top of the lifting mechanism (72).

2. A device for cleaning an air preheater according to claim 1, characterized in that: The lifting mechanism (72) includes a lifting seat (721), two connecting blocks (722) are fixedly installed on the front and rear sides of the lifting seat (721), a lifting rod (723) is fixedly installed at the bottom of the connecting block (722), a lifting hole (724) adapted to the lifting rod (723) is opened on the inner side of the support seat (71), a notch adapted to the connecting block (722) is opened on the inner side of the support seat (71) and at the top of the lifting hole (724), and two electric telescopic rods (725) for driving the lifting seat (721) to move up and down are fixedly installed on the inner side of the support seat (71).

3. A device for cleaning an air preheater according to claim 2, characterized in that: The telescopic mechanism (73) includes a telescopic seat (731), the bottom of which is fixedly connected to the top of the lifting seat (721). An installation seat (732) is slidably connected to the inner side of the telescopic seat (731). A connecting sleeve (733) is provided through the center of the inner side of the installation seat (732) and is fixedly connected to it. Multiple nozzles (734) are fixedly installed on the surface of the connecting sleeve (733) near the right end. The right end of the second delivery pipe (6) is fixedly connected to the left end of the connecting sleeve (733).

4. A device for cleaning an air preheater according to claim 3, characterized in that: A lead screw (735) is rotatably connected to the inner side of the telescopic seat (731) and the bottom of the mounting seat (732). A threaded block (736) is fitted on the surface of the lead screw (735) and threadedly connected to it. The top of the threaded block (736) is fixedly connected to the bottom of the mounting seat (732). A drive motor (737) for driving the lead screw (735) to rotate is fixedly installed on the left side of the telescopic seat (731). Fixed blocks are fixedly installed on the front and rear sides of the mounting seat (732). A sliding rod (738) is fixedly installed on the left side of the fixed block. A sliding hole is opened on the inner side of the telescopic seat (731) for the sliding rod (738) to slide left and right.

5. A device for cleaning an air preheater according to claim 1, characterized in that: The support frame (1) is fixedly equipped with multiple casters (8) at the bottom, and the storage box (3) is fixedly equipped with a water injection pipe (9) at the top.

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