Anti-coking boiler economizer

Abstract

The utility model discloses an anti-coking boiler economizer and relates to the technical field of economizers. The output end of the drainage tube is connected with the flushing nozzles, the upper surface of each flushing nozzle is connected with the filter plate, the runner tube is hermetically connected with the fixed tube, and the anti-blocking part used for cleaning the flushing nozzles with upward liquid outlets is arranged in the fixed tube. According to the cleaning device, cleaning liquid in the first flushing pipe and the second flushing pipe can be evenly sprayed to the inner wall face of the flow channel pipe through the arranged flushing spray heads, the arranged filter plates can disperse the cleaning liquid sprayed out of the flushing spray heads, the spraying range of the cleaning liquid is enlarged, the area of the inner wall, where the cleaning liquid can be attached, of the flow channel pipe is effectively enlarged, and the cleaning effect is improved. The number of faces, capable of being washed by cleaning liquid, of the inner wall face of the flow channel pipe is increased, the washing completeness and the cleaning completion rate of the inner wall of the flow channel pipe are guaranteed, and the problems that smoke dust is attached to the wall and coking occurs on the inner wall of the flow channel pipe are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of economizers, in particular to an anti-coking boiler economizer. Background Art

[0002] Economizer is a device installed at the lower part of the flue at the rear of the boiler to recover the waste heat of the exhaust gas. It heats the boiler feed water into a heating surface of saturated water under the drum pressure. Because it absorbs the heat of high-temperature flue gas, it reduces the exhaust temperature of the flue gas, saves energy and improves efficiency, so it is called an economizer.

[0003] The Chinese utility model patent with publication number CN219976386U discloses a boiler economizer with anti-coking, wherein the outer wall of the flow channel tube is connected with a flushing pipe, and the side wall of the flushing pipe is connected with a plurality of flushing components for flushing the inner wall of the flow channel tube, and the flow channel tube includes a connecting section, an arc-shaped slow flow section and a serpentine cooling section which are fixedly connected in sequence. The outlets of the guide pipe and the flushing nozzle in the device are both placed downward, resulting in that only one side of the wall surface inside the flow channel tube can be flushed, and the area of ​​the inner wall of the flow channel tube that can be flushed is small, which easily leads to the problem of smoke and dust hanging on the inner wall of the other side of the flow channel tube that has not been flushed, and reduces the completion rate of the thoroughness of cleaning the inner wall of the flow channel tube.

[0004] Therefore, a coking-proof boiler economizer is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art and provide a coking-proof boiler economizer.

[0006] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0007] A coking-proof boiler economizer comprises a flow channel tube and a water storage cooling tube arranged inside the flow channel tube, wherein a flushing tube 1 and a flushing tube 2 are installed on the outer wall of the flow channel tube, and drainage tubes connected to the inner cavity of the flow channel tube are installed on the flushing tube 1 and the flushing tube 2, and the output ends of the drainage tubes are connected to flushing nozzles, and the upper surface of each flushing nozzle is connected to a filter plate, and a fixed tube is sealingly connected to the flow channel tube, and an anti-blocking part for cleaning the flushing nozzle arranged upward at a liquid outlet is arranged inside the fixed tube, a rotating component for driving the anti-blocking part to rotate is arranged on the fixed tube, and a stabilizing part for ensuring the stability of the anti-blocking part is arranged on the fixed tube.

[0008] Furthermore, the anti-blocking part includes a rotating shaft, the rotating shaft is installed inside the fixed tube, the top of the rotating shaft is fixedly connected to a horizontal plate, the two ends of the bottom of the horizontal plate are respectively connected to a scraper and a cleaning brush, and the rotating shaft is provided with a linkage part for driving multiple horizontal plates to rotate simultaneously.

[0009] Furthermore, the linkage part includes a bottom column, the bottom of the rotating shaft is fixedly connected to the bottom column, the outer wall surface of the bottom column is vertically provided with two belt grooves, and a belt is wound and connected between the two corresponding belt grooves on the left and right.

[0010] Furthermore, the rotating assembly includes a bracket, and three circumferentially distributed brackets are inserted into the outer wall of the fixed tube, the top of the bracket is fixedly connected to the outer wall of the flow channel tube, a circular base plate is clamped on the three brackets, and a motor with an output end connected to the bottom of the base column is installed on the top of the base plate.

[0011] Furthermore, the top of the bracket is fixedly connected to the outer wall surface of the flow channel pipe by bolts.

[0012] Furthermore, the stable portion includes a rotating cavity, the upper surface of the fixed tube is provided with an annular rotating cavity, the interior of the rotating cavity is rotatably connected with three circumferentially distributed supporting blocks, and the other end of the supporting block is connected to the outer wall surface of the rotating shaft by mortise and tenon technology.

[0013] The beneficial effects of the utility model are as follows:

[0014] The utility model can evenly spray the cleaning liquid inside the first and second flushing pipes onto the inner wall surface of the flow channel pipe through the provided flushing nozzle, and the provided filter plate can disperse the cleaning liquid sprayed from the flushing nozzle, thereby expanding the spraying range of the cleaning liquid and effectively expanding the area of ​​the inner wall of the flow channel pipe to which the cleaning liquid can adhere, and increasing the surface of the inner wall of the flow channel pipe that can be flushed by the cleaning liquid, thereby ensuring the thoroughness of flushing the inner wall of the flow channel pipe and the cleaning completion rate, and avoiding the problems of smoke and dust hanging on the wall and coking on the inner wall of the flow channel pipe; the provided anti-blocking part can clean the filter plate installed on the top of the flushing nozzle, thereby avoiding the coking body on the inner wall of the flow channel pipe from falling down and blocking the flushing nozzle, thereby ensuring the normal liquid discharge effect of the flushing nozzle; the provided rotating component can drive the anti-blocking part to rotate from the outside, thereby ensuring the cleaning effect of the liquid outlet of the flushing nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front sectional schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a back three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 3 It is an enlarged schematic diagram of the anti-blocking structure of the utility model;

[0018] Figure 4 It is an enlarged schematic diagram of the structure of the stable part of the utility model;

[0019] Figure numerals: 1. flow channel pipe; 2. water storage cooling pipe; 3. flushing pipe one; 4. flushing pipe two; 5. drainage pipe; 6. flushing nozzle; 7. anti-blocking part; 701. rotating shaft; 702. horizontal plate; 703. scraper; 704. cleaning brush; 8. fixed pipe; 9. rotating assembly; 901. bracket; 902. bottom plate; 903. motor; 904. linkage part; 9041. bottom column; 9042. belt groove; 9043. belt; 10. stabilizing part; 101. rotating chamber; 102. support block. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do 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 invention.

[0024] like Figures 1 to 4As shown, a coking-proof boiler economizer comprises a flow channel tube 1 and a water storage cooling tube 2 arranged inside the flow channel tube 1, a flushing tube 1 3 and a flushing tube 2 4 are installed on the outer wall of the flow channel tube 1, a drainage tube 5 communicating with the inner cavity of the flow channel tube 1 is installed on the flushing tube 1 3 and the flushing tube 2 4, a plurality of drainage tubes 5 are equidistantly distributed in the inner cavity of the flow channel tube 1, an output end of the drainage tube 5 is connected to a flushing nozzle 6 located on one side of the water storage cooling tube 2, a filter plate is connected to the upper surface of each flushing nozzle 6, a fixed tube 8 is sealed and connected to the flow channel tube 1, an anti-blocking part 7 for cleaning the flushing nozzle 6 with the liquid outlet facing upward is arranged inside the fixed tube 8, a rotating assembly 9 for driving the anti-blocking part 7 to rotate is arranged on the fixed tube 8, and a stabilizing part 10 for ensuring the stability of the anti-blocking part 7 is arranged on the fixed tube 8;

[0025] Specifically, the cleaning liquid inside the flushing pipe 1 3 and the flushing pipe 2 4 can be evenly sprayed on the inner wall surface of the flow channel pipe 1 through the provided flushing nozzle 6, and the provided filter plate can disperse the cleaning liquid sprayed from the flushing nozzle 6, thereby expanding the spraying range of the cleaning liquid, effectively expanding the area of ​​the inner wall of the flow channel pipe 1 to which the cleaning liquid can adhere, and increasing the surface of the inner wall of the flow channel pipe 1 that can be flushed by the cleaning liquid, thereby ensuring the thoroughness of flushing the inner wall of the flow channel pipe 1 and the cleaning completion rate, and avoiding the problems of smoke and dust hanging on the inner wall of the flow channel pipe 1 and coking;

[0026] The anti-blocking part 7 is arranged to clean the filter plate installed on the top of the flushing nozzle 6, so as to prevent the coke body on the inner wall of the flow channel tube 1 from falling down and blocking the flushing nozzle 6, thereby ensuring the normal liquid discharge effect of the flushing nozzle 6; the anti-blocking part 7 can be driven to rotate from the outside by the rotating component 9, thereby ensuring the cleaning effect of the liquid outlet of the flushing nozzle 6.

[0027] like Figure 3 As shown, the anti-blocking part 7 includes a rotating shaft 701, the rotating shaft 701 is installed inside the fixed tube 8, the top of the rotating shaft 701 is fixedly connected with a horizontal plate 702, the two ends of the bottom of the horizontal plate 702 are respectively connected with a scraper 703 and a cleaning brush 704, and the rotating shaft 701 is provided with a linkage part 904 for driving multiple horizontal plates 702 to rotate at the same time;

[0028] Specifically, the rotating shaft 701 can drive the horizontal plate 702 to rotate in a circular manner. During the rotation of the horizontal plate 702, the scraper 703 and the cleaning brush 704 can scrape and clean the coke bodies that have fallen on the liquid outlet of the flushing nozzle 6, thereby pushing the coke bodies on the flushing nozzle 6 to the outside of the flushing nozzle 6, ensuring the smooth flow of the liquid outlet of the flushing nozzle 6 and ensuring the speed of spraying the cleaning liquid on the inner wall of the flow channel tube 1.

[0029] like Figure 3As shown, the linkage part 904 includes a bottom column 9041, the bottom of the rotating shaft 701 is fixedly connected with the bottom column 9041, the outer wall surface of the bottom column 9041 is vertically provided with two belt grooves 9042, and a belt 9043 is wound and connected between the two corresponding belt grooves 9042 on the left and right, and the bottom column 9041 can pass through the inside of the fixed tube 8;

[0030] Specifically, by rotating one of the bottom columns 9041, the other bottom column 9041 can be driven to rotate under the pull of the belt 9043, thereby driving two or even more rotating shafts 701 to rotate at the same time, and driving two or more horizontal plates 702 to rotate at the same time. The structure is simple and easy to operate.

[0031] like Figure 3 As shown, the rotating assembly 9 includes a bracket 901, and the outer wall of the fixed tube 8 is plugged with three brackets 901 distributed in a circle, the top of the bracket 901 is fixedly connected to the outer wall of the flow channel tube 1, and a circular bottom plate 902 is clamped on the three brackets 901, and a motor 903 whose output end is connected to the bottom of the bottom column 9041 is installed on the top of the bottom plate 902;

[0032] In order to facilitate the disassembly and assembly of the bracket 901, the top of the bracket 901 is fixedly connected to the outer wall of the flow channel tube 1 by bolts;

[0033] Specifically, by driving one of the motors 903 , the bottom column 9041 can be driven to rotate, and with the cooperation of the belt 9043 , multiple rotating shafts 701 can be driven to rotate simultaneously.

[0034] like Figure 4 As shown, the stable portion 10 includes a rotating cavity 101. The upper surface of the fixed tube 8 is provided with an annular rotating cavity 101. Three circumferentially distributed supporting blocks 102 are rotatably connected inside the rotating cavity 101. The other end of the supporting block 102 is connected to the outer wall of the rotating shaft 701 by a mortise and tenon process.

[0035] Specifically, the provided rotating chamber 101 and the supporting block 102 can enhance the stability of the rotating shaft 701 during rotation, and can also improve the stability of the rotating shaft 701 installed on the fixed pipe 8.

[0036] When in use, the user can install multiple belts 9043 in an alternating manner up and down on multiple belt grooves 9042 that are symmetrical on the left and right, and drive one of the motors 903. The motor 903 can drive the bottom column 9041 to rotate. With the cooperation of the belt 9043, two or even more rotating shafts 701 can be driven to rotate at the same time. The rotating rotating shaft 701 can drive the cross plate 702 to rotate, so that the scraper 703 and the cleaning brush 704 can intermittently clean the filter plate installed on the top of the flushing nozzle 6, thereby preventing the coke body above the inner cavity of the flow channel tube 1 from falling onto the flushing nozzle 6 with the liquid outlet facing upward, thereby ensuring the liquid discharge effect of the flushing nozzle 6.

[0037] In summary: by means of the flushing nozzle 6, the cleaning liquid inside the flushing pipe 1 3 and the flushing pipe 2 4 can be evenly sprayed on the inner wall surface of the flow channel pipe 1, and the filter plate can disperse the cleaning liquid sprayed from the flushing nozzle 6, thereby expanding the spraying range of the cleaning liquid, effectively expanding the area of ​​the inner wall of the flow channel pipe 1 to which the cleaning liquid can adhere, and increasing the surface of the inner wall of the flow channel pipe 1 that can be flushed by the cleaning liquid, thereby ensuring the thoroughness of flushing the inner wall of the flow channel pipe 1 and the cleaning completion rate, and avoiding the problems of smoke and dust hanging on the inner wall of the flow channel pipe 1 and coking;

[0038] The anti-blocking part 7 is arranged to clean the filter plate installed on the top of the flushing nozzle 6, so as to prevent the coke body on the inner wall of the flow channel tube 1 from falling down and blocking the flushing nozzle 6, thereby ensuring the normal liquid discharge effect of the flushing nozzle 6; the anti-blocking part 7 can be driven to rotate from the outside by the rotating component 9, thereby ensuring the cleaning effect of the liquid outlet of the flushing nozzle 6.

[0039] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A boiler economizer for preventing coking, characterized in that: The invention comprises a flow channel pipe (1) and a water storage cooling pipe (2) arranged inside the flow channel pipe (1); a flushing pipe (3) and a flushing pipe (4) are installed on the outer wall surface of the flow channel pipe (1); a drainage pipe (5) communicating with the inner cavity of the flow channel pipe (1) is installed on the flushing pipe (3) and the flushing pipe (4); the output end of the drainage pipe (5) is connected to a flushing nozzle (6); the upper surface of each flushing nozzle (6) is connected to a filter plate; a fixed pipe (8) is sealedly connected to the flow channel pipe (1); an anti-blocking part (7) for cleaning the flushing nozzle (6) arranged upward with a liquid outlet is arranged inside the fixed pipe (8); a rotating assembly (9) for driving the anti-blocking part (7) to rotate is arranged on the fixed pipe (8); and a stabilizing part (10) for ensuring the stability of the anti-blocking part (7) is arranged on the fixed pipe (8).

2. The anti-coking boiler economizer according to claim 1, characterized in that: The anti-blocking part (7) comprises a rotating shaft (701), the rotating shaft (701) is installed inside the fixed tube (8), the top of the rotating shaft (701) is fixedly connected to a transverse plate (702), the two ends of the bottom of the transverse plate (702) are respectively connected to a scraper (703) and a cleaning brush (704), and the rotating shaft (701) is provided with a linkage part (904) for driving a plurality of transverse plates (702) to rotate simultaneously.

3. The anti-coking boiler economizer according to claim 2, characterized in that: The linkage part (904) comprises a bottom column (9041), the bottom of the rotating shaft (701) is fixedly connected to the bottom column (9041), the outer wall surface of the bottom column (9041) is vertically provided with two belt grooves (9042), and a belt (9043) is wound and connected between the two corresponding belt grooves (9042) on the left and right.

4. The anti-coking boiler economizer according to claim 3, characterized in that: The rotating assembly (9) comprises a bracket (901), the outer wall surface of the fixed tube (8) is plugged with three brackets (901) distributed in a circle, the top of the bracket (901) is fixedly connected to the outer wall surface of the flow channel tube (1), a circular bottom plate (902) is clamped on the three brackets (901), and a motor (903) whose output end is connected to the bottom of the bottom column (9041) is installed on the top of the bottom plate (902).

5. The anti-coking boiler economizer according to claim 4, characterized in that: The top of the bracket (901) is fixedly connected to the outer wall surface of the flow channel tube (1) by means of bolts.

6. The anti-coking boiler economizer according to claim 1, characterized in that: The stable portion (10) comprises a rotating cavity (101), the upper surface of the fixed tube (8) is provided with an annular rotating cavity (101), the interior of the rotating cavity (101) is rotatably connected with three circumferentially distributed supporting blocks (102), and the other end of the supporting block (102) is connected to the outer wall surface of the rotating shaft (701) by means of a mortise and tenon joint process.

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