Quick flushing mechanism for air preheater

Abstract

The utility model discloses a quick flushing mechanism for an air preheater, which belongs to the technical field of flushing of air preheaters and comprises an air preheater body and a support box, a sliding door is arranged on one side of the air preheater body, and the support box can be inserted into the air preheater body in a sliding manner after the sliding door is opened. The bottom end of the supporting box is open, a sliding plate is slidably installed on the inner wall of the supporting box, a cleaning branch pipe is fixedly installed at the bottom end of the sliding plate, a plurality of nozzles are fixedly installed at the bottom end of the outer side of the cleaning branch pipe, and one side of the cleaning branch pipe is fixedly connected with a first feeding pipe. One end of the first feeding pipe penetrates through one side of the supporting box and is fixedly connected with a material mixing box, second feeding pipes are symmetrically and fixedly installed on the outer side of the material mixing box, and clamping assemblies are installed on the outer sides of the second feeding pipes. Therefore, the safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of air preheater flushing, and more specifically, to a rapid flushing mechanism for an air preheater. Background Technique

[0002] Currently, the common rapid flushing mechanisms for existing air preheaters are chemical cleaning and mechanical cleaning. Since there are many heat exchange plates in the plate - type air preheater, each heat exchange plate needs to be cleaned one by one. And due to the limited space between the heat exchange plates, it is difficult to clean the heat exchange plates, and the cleaning takes a lot of time.

[0003] In the prior art, an on - line cleaning device for a plate - type air preheater with the application number CN202321214228.1 includes an air preheater body. A plurality of heat exchange plates are installed in the air preheater body, and the plurality of heat exchange plates are arranged evenly in sequence. A conveying pipe is slidably connected to the side wall of the air preheater body. One end of the conveying pipe placed inside the air preheater body is fixedly connected with a cleaning branch pipe. The inside of the conveying pipe and the cleaning branch pipe is communicated. A plurality of cleaning nozzles are arranged on the lower side of the side wall of the cleaning branch pipe. By arranging a cleaning branch pipe in the air preheater, the conveying pipe sprays cleaning liquid and compressed air onto the heat exchange plates through the cleaning nozzles arranged on the cleaning branch pipe, and thus the cleaning of the heat exchange plates can be completed. At the same time, since the conveying pipe can drive the cleaning pipe to slide on the preheater, the cleaning branch pipe can clean different heat exchange plates. Therefore, the cleaning of the heat exchange plates is convenient, the cleaning time is saved, and the cleaning efficiency is improved.

[0004] However, in the above - mentioned prior - art solution, the flushing device is fixed inside the air preheater body and cannot be disassembled. That is, each air preheater body needs to be equipped with a flushing device, which is a waste of resources. When flushing is not required and the air preheater body is working, it will cause inconvenience. Moreover, when the cleaning liquid pipe and the compressed air pipe are respectively connected to the cleaning liquid interface and the compressed air interface, there is no fixing device, and it is easy to slip during cleaning, resulting in low safety. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a rapid flushing mechanism for an air preheater, aiming to improve the problems of inconvenient disassembly and installation of the flushing device and low stability during pipeline connection. That is, it is a practical innovation based on the application number CN202321214228.1.

[0006] The present utility model is realized as follows: A rapid flushing mechanism for an air preheater, comprising an air preheater body and a support box. A sliding door is provided on one side of the air preheater body. After the sliding door is opened, the support box can be slidably inserted into the air preheater body. The bottom end of the support box is open. A sliding plate is slidably installed on the inner wall of the support box. A cleaning branch pipe is fixedly installed at the bottom end of the sliding plate. A plurality of nozzles are fixedly installed at the outer bottom end of the cleaning branch pipe. One side of the cleaning branch pipe is fixedly connected to a first feed pipe. One end of the first feed pipe penetrates through one side of the support box and is fixedly connected to a mixing box. Second feed pipes are symmetrically and fixedly installed on the outer side of the mixing box. A clamping assembly is installed on the outer side of the second feed pipes.

[0007] In a preferred technical solution of the present utility model, the support box is slidably connected to the inner wall of the air preheater body. Support columns are symmetrically and fixedly installed on one side of the support box. Slots matching the support columns are provided on the inner wall of the air preheater body.

[0008] In a preferred technical solution of the present utility model, a first guide rod is fixedly installed between the two sides of the inner wall of the support box, and a first threaded rod is rotatably installed. The sliding plate is slidably installed on the first guide rod and threadedly installed on the first threaded rod. One end of the first threaded rod is fixedly installed with a rotating shaft. One end of the rotating shaft penetrates through one side of the support box and is fixedly installed with a turntable. The first guide rod and the first threaded rod are symmetrically arranged on both sides of the first feed pipe.

[0009] In a preferred technical solution of the present utility model, the second feed pipe is L-shaped and is internally connected to the mixing box. Guide plates are symmetrically and fixedly installed on the inner wall of the mixing box. The guide plates are arc-shaped.

[0010] In a preferred technical solution of the present utility model, the clamping assembly includes a bracket and a first support rod. The brackets are symmetrically and fixedly installed on one side of the mixing box. The first support rod is fixedly installed between the two brackets. The two ends of the first support rod respectively penetrate through the brackets and extend to the outside. Sliders are symmetrically and fixedly installed at the two ends of the first support rod. Clamping blocks are fixedly installed at the closest sides of the two sliders at each end. A driving assembly is installed on the sliders. The bracket is L-shaped. Limit discs are fixedly installed at the two ends of the first support rod.

[0011] In a preferred technical solution of the present utility model, the two clamping blocks at each end are symmetrically arranged on the outer side of one second feed pipe. The closest side of the clamping block to the adjacent second feed pipe is arc-shaped. The clamping block is made of rubber.

[0012] In a preferred technical solution of the present utility model, the driving assembly includes a second support rod and a bidirectional threaded rod. The second support rod is rotatably installed between the two brackets. Both ends of the second support rod penetrate through the brackets and are fixedly connected to the bidirectional threaded rod. Two sliders at each end are symmetrically threadedly installed on the bidirectional threaded rod. Discs are fixedly installed at both ends of the bidirectional threaded rod, and the threads on the bidirectional threaded rod are arranged in central symmetry.

[0013] The beneficial effects of the present utility model are as follows: A rapid flushing mechanism for an air preheater obtained by the above design of the present utility model. When cleaning is required, after opening the sliding door, insert the support box into the air preheater body, and at the same time insert the support column into the slot for fixation. At this time, sleeve the cleaning liquid pipe and the compressed air pipe on the outside of the second feed pipe respectively. Rotate the disc to drive the bidirectional threaded rod to rotate. The rotation of the bidirectional threaded rod drives the two sliders at both ends to move relatively, thereby driving the clamping block to move to clamp and fix the cleaning liquid pipe and the compressed air pipe. At this time, the cleaning liquid and the compressed air are mixed through the mixing box and then enter the first feed pipe, and then are sprayed out from the nozzles on the cleaning branch pipe to clean the heat exchange plate. At the same time, rotate the turntable to drive the first threaded rod to rotate. The first threaded rod drives the first feed pipe to move through the sliding plate to adjust the cleaning range. This device is convenient for disassembly and installation, convenient for storage when not in use, and can clamp and fix the connection of the second feed pipe, thereby improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 is a schematic structural diagram of a rapid flushing mechanism for an air preheater provided by an embodiment of the present utility model;

[0016] Figure 2 is a schematic internal structure diagram of the support box provided by an embodiment of the present utility model;

[0017] Figure 3 is a schematic partial structure diagram of a rapid flushing mechanism for an air preheater provided by an embodiment of the present utility model;

[0018] Figure 4 is a schematic internal structure diagram of the mixing box provided by an embodiment of the present utility model.

[0019] In the figure: 110 - air preheater body; 111 - sliding door; 120 - support box; 121 - sliding plate; 122 - cleaning branch pipe; 123 - first feed pipe; 124 - mixing box; 1241 - guide plate; 125 - second feed pipe; 126 - support column; 130 - first guide rod; 131 - first threaded rod; 132 - turntable; 140 - bracket; 141 - first support rod; 142 - slider; 143 - clamping block; 144 - second support rod; 145 - bidirectional threaded rod. Detailed implementation manners

[0020] To make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 4 , the present utility model provides a technical solution: a rapid flushing mechanism for an air preheater, including an air preheater body 110 and a support box 120. A sliding door 111 is arranged on one side of the air preheater body 110. After the sliding door 111 is opened, the support box 120 can be slidably inserted into the air preheater body 110. The bottom end of the support box 120 is open. A sliding plate 121 is slidably installed on the inner wall of the support box 120. A cleaning branch pipe 122 is fixedly installed at the bottom end of the sliding plate 121. A plurality of nozzles are fixedly installed at the outer bottom end of the cleaning branch pipe 122. One side of the cleaning branch pipe 122 is fixedly connected to a first feed pipe 123. One end of the first feed pipe 123 penetrates through one side of the support box 120 and is fixedly connected to a mixing box 124. Second feed pipes 125 are symmetrically and fixedly installed on the outer side of the mixing box 124. The second feed pipes 125 are L-shaped and communicate with the inside of the mixing box 124. Guide plates 1241 are symmetrically and fixedly installed on the inner wall of the mixing box 124. The guide plates 1241 are arc-shaped. A clamping assembly is installed on the outer side of the second feed pipe 125.

[0022] In some specific implementation manners, the support box 120 is slidably connected to the inner wall of the air preheater body 110. Support columns 126 are symmetrically and fixedly installed on one side of the support box 120. Slots matching the support columns 126 are arranged on the inner wall of the air preheater body 110, which play a role in supporting and positioning the support box 120.

[0023] In some specific embodiments, a first guide rod 130 is fixedly installed between two sides of the inner wall of the support box 120, and a first threaded rod 131 is rotatably installed. A sliding plate 121 is slidably installed on the first guide rod 130 and threadedly installed on the first threaded rod 131. One end of the first threaded rod 131 is fixedly installed with a rotating shaft, and one end of the rotating shaft penetrates through one side of the support box 120 and is fixedly installed with a turntable 132. The first guide rod 130 and the first threaded rod 131 are symmetrically arranged on both sides of the first feed pipe 123, so that the cleaning branch pipe 122 can clean different heat exchange plates.

[0024] Please refer to Figure 3 , the clamping assembly includes a bracket 140 and a first support rod 141. Brackets 140 are symmetrically and fixedly installed on one side of the mixing box 124. A first support rod 141 is fixedly installed between the two brackets 140. Both ends of the first support rod 141 penetrate through the brackets 140 and extend to the outside. Sliders 142 are symmetrically and fixedly installed at both ends of the first support rod 141. Clamping blocks 143 are fixedly installed at the two sliders 142 closest to one side at each end. A driving assembly is installed on the sliders 142. The bracket 140 is L-shaped. Limiting disks are fixedly installed at both ends of the first support rod 141. The two clamping blocks 143 at each end are symmetrically arranged outside a second feed pipe 125. The closest side between the clamping block 143 and the adjacent second feed pipe 125 is arc-shaped. The clamping block 143 is made of rubber.

[0025] In some specific embodiments, the driving assembly includes a second support rod 144 and a bidirectional threaded rod 145. The second support rod 144 is rotatably installed between the two brackets 140. Both ends of the second support rod 144 penetrate through the brackets 140 and are fixedly connected to the bidirectional threaded rod 145. The two sliders 142 at each end are symmetrically and threadedly installed on the bidirectional threaded rod 145. Disks are fixedly installed at both ends of the bidirectional threaded rod 145. The threads on the bidirectional threaded rod 145 are centrally symmetrically arranged, so as to quickly drive the clamping block 143 to move by cooperating with the rotation of the disk and the bidirectional threaded rod 145, thereby fixing the pipe connection.

[0026] Working principle: When cleaning is required, open the sliding door 111 and insert the support box 120 into the air preheater body 110. At the same time, insert the support column 126 into the slot for fixation. At this time, sleeve the cleaning liquid pipe and the compressed air pipe on the outside of the second feed pipe 125 respectively. Rotate the disc to drive the bidirectional threaded rod 145 to rotate. The rotation of the bidirectional threaded rod 145 drives the two sliders 142 at both ends to move relatively, thereby driving the clamping block 143 to move to clamp and fix the cleaning liquid pipe and the compressed air pipe. At this time, the cleaning liquid and the compressed air are mixed through the mixing box 124 and then enter the first feed pipe 123, and then are sprayed out through the nozzles on the cleaning branch pipe 122 to clean the heat exchange plate. At the same time, rotate the turntable 132 to drive the first threaded rod 131 to rotate. The first threaded rod 131 drives the first feed pipe 123 to move through the sliding plate 121 to adjust the cleaning range.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rapid flushing mechanism for an air preheater, comprising an air preheater body and a support box, characterized in that, A sliding door is provided on one side of the air preheater body. After the sliding door is opened, the support box can be slid into the air preheater body. The bottom end of the support box is open. A sliding plate is slidably installed on the inner wall of the support box. A cleaning branch pipe is fixedly installed at the bottom end of the sliding plate. A plurality of nozzles are fixedly installed at the outer bottom end of the cleaning branch pipe. One side of the cleaning branch pipe is fixedly connected to a first feed pipe. One end of the first feed pipe penetrates through one side of the support box and is fixedly connected to a mixing box. Second feed pipes are symmetrically and fixedly installed on the outer side of the mixing box. A clamping assembly is installed on the outer side of the second feed pipe.

2. The rapid flushing mechanism of an air preheater according to claim 1, wherein The support box is slidably connected to the inner wall of the air preheater body. Support columns are symmetrically and fixedly installed on one side of the support box. Slots matching the support columns are provided on the inner wall of the air preheater body.

3. The rapid flushing mechanism of an air preheater according to claim 1, characterized in that A first guide rod is fixedly installed between the two sides of the inner wall of the support box, and a first threaded rod is rotatably installed. The sliding plate is slidably installed on the first guide rod and threadedly installed on the first threaded rod. One end of the first threaded rod is fixedly installed with a rotating shaft. One end of the rotating shaft penetrates through one side of the support box and is fixedly installed with a turntable.

4. The rapid flushing mechanism of an air preheater according to claim 1, wherein, The second feed pipe is L-shaped and communicates with the inside of the mixing box. Guide plates are symmetrically and fixedly installed on the inner wall of the mixing box. The guide plates are arc-shaped.

5. The rapid flushing mechanism of an air preheater according to claim 1, characterized in that, The clamping assembly includes brackets and a first support rod. The brackets are symmetrically and fixedly installed on one side of the mixing box. The first support rod is fixedly installed between the two brackets. The two ends of the first support rod respectively penetrate through the brackets and extend to the outside. Sliders are symmetrically and fixedly installed at the two ends of the first support rod. Clamping blocks are fixedly installed at the closest side of the two sliders at each end. A driving assembly is installed on the sliders.

6. The rapid flushing mechanism of an air preheater according to claim 5, characterized in that, The two clamping blocks at each end are symmetrically arranged on the outer side of one second feed pipe. One side of the clamping block is arc-shaped.

7. The rapid flushing mechanism of an air preheater according to claim 5, characterized in that, The driving assembly includes a second support rod and a bidirectional threaded rod. The second support rod is rotatably installed between the two brackets. The two ends of the second support rod penetrate through the brackets and are fixedly connected to the bidirectional threaded rod. The two sliders at each end are symmetrically threadedly installed on the bidirectional threaded rod. Discs are fixedly installed at the two ends of the bidirectional threaded rod.

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