Clean waste heat utilization heating steam boiler

Abstract

The present invention relates to the technical field of boilers, in particular to a clean type waste heat utilization heating and steam production boiler, comprising a boiler body, the top of the boiler body is connected to a waste heat boiler, the waste heat boiler is connected to an exhaust pipe, the exhaust pipe is provided with a cleaning structure for cleaning the inner wall of the pipe, the cleaning structure comprises a reciprocating screw, two baffles and a cross plate, the two baffles are slidably connected on both sides of the exhaust pipe, the two baffles are fixedly connected to the cross plate, a screw hole is provided in the middle of the cross plate, the reciprocating screw is rotatably installed in the exhaust pipe, a motor is fixedly connected to the outer wall of the exhaust pipe, the reciprocating screw is coaxially fixedly connected to the output end of the motor, a first scraper is hinged on the top of the baffle, a first sliding pipe is hinged on the bottom of the first scraper, a sliding rod is inserted in the first sliding pipe, and the present invention can clean the inner wall of the exhaust pipe of the waste heat boiler.

Description

Technical Field

[0001] The invention relates to the technical field of boilers, and in particular to a clean waste heat utilization heating steam production boiler. Background Art

[0002] Waste heat boilers mainly utilize the flue gas heat generated in various industrial processes. Through waste heat recovery, hot water or steam can be produced to supply other sections. Due to the large amount of dust in the flue gas, the dust will adhere to the inner wall of the exhaust pipe of the waste heat boiler, which will greatly reduce the heat exchange efficiency of the waste heat boiler, thereby causing the waste heat boiler to have a lower operating efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the problem of dust accumulation in the exhaust pipe of the waste heat boiler in the prior art, and to propose a clean waste heat utilization heating steam production boiler.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A clean waste heat utilization steam production boiler is designed, comprising a boiler body, the top of the boiler body is connected to a waste heat boiler, the waste heat boiler is connected to an exhaust pipe, a cleaning structure for cleaning the inner wall of the pipe is installed inside the exhaust pipe, the cleaning structure comprises a reciprocating screw, two baffles and a cross plate, the two baffles are slidably connected to both sides of the exhaust pipe, the two baffles are fixedly connected to the cross plate, a screw hole is opened in the middle of the cross plate, the reciprocating screw is rotatably installed inside the exhaust pipe, a motor is fixedly connected to the outer wall of the exhaust pipe, and the reciprocating screw is coaxially fixedly connected to the output end of the motor, A first scraper is hinged on the top of the baffle, a first slide tube is hinged on the bottom of the first scraper, a sliding rod is inserted in the first slide tube, the bottom end of the sliding rod is inserted in the second slide tube, the bottom end of the second slide tube is hinged on the baffle, a compression spring is sleeved on the sliding rod, a rotating shaft is rotatably installed between the bottoms of the two baffles, ratchets are fixedly connected at both ends of the rotating shaft, a pawl is hinged on the outer wall of the baffle above the ratchet, the pawl is cooperatively connected to the ratchet, a plurality of second magnetic scrapers are fixedly connected to the outer wall of the rotating shaft along the axial direction, and the second scraper can be adsorbed on the inner wall of the exhaust pipe.

[0006] Preferably, an adjustment base is installed on the bottom of the boiler body, and the adjustment base includes a clamp, a first sliding sleeve, a first sliding rod, a positioning pin, a second sliding sleeve and a second sliding rod, the first sliding sleeve is fixedly connected to the bottom of the clamp, the clamp is against both sides of the boiler body, the first sliding sleeve is arranged on both ends of the first sliding rod, the first sliding sleeve is provided with a positioning hole, the positioning pin is screwed into the positioning hole, the second sliding sleeve is fixedly connected to the bottom surface of the first sliding rod, and the two ends of the second sliding rod are inserted into the second sliding sleeve.

[0007] Preferably, a buffer structure is fixedly connected to the bottom surface of the second slide bar, and the buffer structure includes an upper bracket, an upper slide tube, a guide rod, a buffer spring, a lower slide tube and a lower bracket. The upper bracket is fixedly connected to the bottom surface of the second slide bar, the upper slide tube is vertically fixedly connected to the bottom surface of the upper bracket, the lower slide tube is vertically fixedly connected to the upper surface of the lower bracket, the top end of the guide rod is inserted in the upper slide tube, the bottom end of the guide rod is inserted in the lower slide tube, and the buffer spring is sleeved on the guide rod.

[0008] Preferably, an adjustment leg is installed on the side wall of the lower bracket.

[0009] Preferably, the adjustment leg includes a support member, a connecting tube, a connecting rod, a connecting plate, an adjustment stud and a rubber pad. The support member is fixed to the outer wall of the lower bracket, the connecting tube is vertically fixed to the bottom of the support member, the connecting rod is vertically inserted in the connecting tube, the connecting plate is horizontally fixed to the bottom end of the connecting rod, a through hole is vertically opened on the connecting plate, the adjustment stud is vertically screwed in the through hole, and the rubber pad is fixed to the bottom end of the adjustment stud.

[0010] The clean waste heat utilization heating steam production boiler proposed in the present invention has the beneficial effect that the clean waste heat utilization heating steam production boiler drives the reciprocating screw to rotate by a motor, and the reciprocating screw rotates, which drives the cross plate to slide inside the exhaust pipe, and the sliding of the cross plate drives the baffle to move, and the movement of the baffle will scrape the smoke and dust attached to the inner wall of the exhaust pipe onto the bottom surface of the exhaust pipe. When the baffle moves, it will also drive the first scraper to move, and when the first scraper moves, it will scrape the smoke and dust on the top wall of the exhaust pipe onto the bottom surface of the exhaust pipe, thereby cleaning the two side walls inside the exhaust pipe, and when the baffle moves, it will also drive the second scraper to move, and the second scraper moves to clean the bottom surface of the exhaust pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the clean waste heat utilization steam production boiler proposed by the present invention. Figure 1 .

[0012] Figure 2 This is a schematic diagram of the structure of the clean waste heat utilization steam production boiler proposed by the present invention. Figure 2 .

[0013] Figure 3 The structure of the regulating base of the clean waste heat utilization steam boiler proposed by the present invention is schematically shown. Figure 1 .

[0014] Figure 4 The structure of the regulating base of the clean waste heat utilization steam boiler proposed by the present invention is schematically shown. Figure 2 .

[0015] Figure 5 This is an enlarged view of point A of the clean waste heat utilization steam production boiler proposed by the present invention.

[0016] Figure 6 Schematic diagram of the structure inside the exhaust pipe of the clean waste heat utilization steam boiler proposed by the present invention Figure 1 .

[0017] Figure 7 Schematic diagram of the structure inside the exhaust pipe of the clean waste heat utilization steam boiler proposed by the present invention Figure 2 .

[0018] Figure 8 The schematic diagram of the cleaning structure of the clean waste heat utilization steam boiler proposed by the present invention Figure 1 .

[0019] Fig. 9 The schematic diagram of the cleaning structure of the clean waste heat utilization steam boiler proposed by the present invention Figure 2 .

[0020] Fig.10 This is an enlarged view of point B of the clean waste heat utilization steam production boiler proposed by the present invention.

[0021] In the figure: boiler body 1, waste heat boiler 2, exhaust pipe 3, reciprocating screw 301, baffle 302, cross plate 303, screw hole 304, first scraper 305, first slide tube 306, sliding rod 307, second slide tube 308, pawl 309, ratchet 310, rotating shaft 311, second scraper 312, platform 313, motor 4, clamping plate 5, first sleeve 6, first slide rod 7, positioning hole 8, positioning pin 9, second sleeve 10, second slide rod 11, upper bracket 12, upper slide tube 13, guide rod 14, buffer spring 15, lower slide tube 16, lower bracket 17, support member 18, connecting pipe 19, connecting rod 20, connecting plate 21, adjusting stud 22, through hole 23, rubber pad 24. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-10The clean waste heat utilization steam production boiler comprises a boiler body 1. The top of the boiler body 1 is connected to a waste heat boiler 2. The waste heat boiler 2 is connected to an exhaust pipe 3. A water coil is arranged in the boiler body 1. An exhaust gas coil is arranged in the waste heat boiler 2. Steam is generated by heating the water coil by burning natural gas. The flue gas discharged from the boiler body 1 enters the exhaust gas coil of the waste heat boiler 2. The water in the waste heat boiler 2 is heated, and the heated water is transferred to a hot water storage tank. The flue gas is discharged from the exhaust pipe 3 and subsequently processed in a centralized manner.

[0024] A cleaning structure for cleaning the inner wall of the exhaust pipe 3 is installed inside the exhaust pipe 3, and the cleaning structure includes a reciprocating screw 301, two baffles 302 and a cross plate 303. The two baffles 302 are slidably connected to both sides of the exhaust pipe 3, and the two baffles 302 are fixedly connected to the cross plate 303. A screw hole 304 is opened in the middle of the cross plate 303. The reciprocating screw 301 is rotatably installed inside the exhaust pipe 3. A motor 4 is fixedly connected to the outer wall of the exhaust pipe 3. The reciprocating screw 301 is coaxially fixedly connected to the output end of the motor 4. A first scraper 305 is hinged on the top of the baffle 302, and a first sliding pipe 306 is hinged on the bottom of the first scraper 305. A sliding rod 307 is inserted in the sliding tube 306, and the bottom end of the sliding rod 307 is inserted in the second sliding tube 308. The bottom end of the second sliding tube 308 is hinged on the baffle 302. A compression spring 313 is sleeved on the sliding rod 307. A rotating shaft 311 is rotatably installed between the bottoms of the two baffles 302. Ratchets 310 are fixedly connected at both ends of the rotating shaft 311. A pawl 309 is hinged on the outer wall of the baffle 302 above the ratchet 310. The pawl 309 is connected to the ratchet 310. A plurality of second magnetic scrapers 312 are fixedly connected to the outer wall of the rotating shaft 311 along the axial interval, and the scrapers 312 can be adsorbed on the inner wall of the exhaust pipe 3.

[0025] The reciprocating screw 301 is driven to rotate by the motor 4. When the reciprocating screw 301 rotates, it drives the cross plate 303 to slide inside the exhaust pipe 3. The sliding of the cross plate 303 drives the baffle 302 to move. The movement of the baffle 302 scrapes the smoke and dust attached to the inner wall of the exhaust pipe 3 onto the bottom surface of the exhaust pipe 3. When the baffle 302 moves, it also drives the first scraper 305 to move. When the first scraper 305 moves, it scrapes the smoke and dust on the top wall of the exhaust pipe 3 onto the bottom surface of the exhaust pipe 3, and cleans the inner walls of the exhaust pipe 3. When the baffle 302 moves, it also drives the second scraper 312 to move.

[0026] When the second scraper 312 moves away from the motor 4, the bottom end of a second scraper 312 on the rotating shaft 311 will continue to be adsorbed on the inner bottom surface of the exhaust pipe 3, the pawl 309 and the ratchet 310 are matched, and the rotating shaft 311 cannot rotate at this time, and the second scraper 312 will clean the smoke and dust accumulated on the bottom surface;

[0027] like Figure 7As shown, when the second scraper 312 moves toward the direction approaching the motor 4, the second scraper 312 can rotate counterclockwise. When the second scraper 312 at the bottom abuts against the platform 313, the second scraper 312 continues to approach the motor 4. Under the resistance given by the platform 313, the second scraper 312 rotates counterclockwise. The second scraper 312 rotates counterclockwise until the leftmost second scraper 312 is magnetically adsorbed on the platform 313. At this time, the second scraper 312 begins to move away from the motor 4. Under the action of the magnetic force, the second scraper 312 adsorbed on the platform 313 will continue to rotate counterclockwise until the bottom end contacts the bottom surface of the exhaust pipe 3, thereby cleaning the smoke and dust on the bottom surface of the inner wall of the pipe.

[0028] An adjustment base is installed on the bottom of the boiler body 1, and the adjustment base includes a clamping plate 5, a first sliding sleeve 6, a first sliding rod 7, a positioning pin 9, a second sliding sleeve 10 and a second sliding rod 11. The first sliding sleeve 6 is fixedly connected to the bottom of the clamping plate 5, and the clamping plate 5 is against both sides of the boiler body 1. The first sliding sleeve 6 is sleeved on both ends of the first sliding rod 7. The first sliding sleeve 6 is provided with a positioning hole 8, and the positioning pin 9 is screwed into the positioning hole 8. The second sliding sleeve 10 is fixedly connected to the bottom surface of the first sliding rod 7, and the two ends of the second sliding rod 11 are inserted into the second sliding sleeve 10. By adjusting the distance between the two clamping plates 5, boilers of different diameters can be fixed, and by adjusting the distance between the two first sliding rods 7, boilers of different lengths can be supported.

[0029] A buffer structure is fixedly connected to the bottom surface of the second slide bar 11, and the buffer structure includes an upper bracket 12, an upper slide tube 13, a guide rod 14, a buffer spring 15, a lower slide tube 16 and a lower bracket 17. The upper bracket 12 is fixedly connected to the bottom surface of the second slide bar 11, the upper slide tube 13 is vertically fixedly connected to the bottom surface of the upper bracket 12, the lower slide tube 16 is vertically fixedly connected to the upper surface of the lower bracket 17, the top end of the guide rod 14 is inserted into the upper slide tube 13, the bottom end of the guide rod 14 is inserted into the lower slide tube 16, and the buffer spring 15 is sleeved on the guide rod 14. The buffer structure can buffer and protect the vibration generated when the boiler is working, and prevent the parts on the boiler from rapid wear.

[0030] An adjustment leg is installed on the side wall of the lower bracket 17, and the adjustment leg includes a support member 18, a connecting pipe 19, a connecting rod 20, a connecting plate 21, an adjustment stud 22 and a rubber pad 24. The support member 18 is fixed to the outer wall of the lower bracket 17, the connecting pipe 19 is vertically fixed to the bottom of the support member 18, the connecting rod 20 is vertically inserted in the connecting pipe 19, the connecting plate 21 is horizontally fixed to the bottom end of the connecting rod 20, a through hole 23 is vertically opened on the connecting plate 21, the adjustment stud 22 is vertically screwed in the through hole 23, and the rubber pad 24 is fixed to the bottom end of the adjustment stud 22. The adjustment leg is anti-skid and stable after the boiler is installed through the rubber pad 24, and the height of the boiler can be fine-tuned by rotating the length of the adjustment stud 22 in the screw hole 23.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Clean waste heat utilization steam boiler, characterized in that: The invention comprises a boiler body (1), wherein the top of the boiler body (1) is connected to a waste heat boiler (2), the waste heat boiler (2) is connected to an exhaust pipe (3), a cleaning structure for cleaning the inner wall of the pipe is installed inside the exhaust pipe (3), the cleaning structure comprises a reciprocating screw (301), two baffles (302) and a transverse plate (303), the two baffles (302) are slidably connected to the two sides inside the exhaust pipe (3), the two baffles (302) are fixedly connected to the transverse plate (303), a screw hole (304) is opened in the middle of the transverse plate (303), the reciprocating screw (301) is rotatably installed inside the exhaust pipe (3), a motor (4) is fixedly connected to the outer wall of the exhaust pipe (3), the reciprocating screw (301) is coaxially fixedly connected to the output end of the motor (4), a first scraper (305) is hinged on the top of the baffle (302), and the first scraper The bottom of the plate (305) is hinged with a first sliding tube (306), a sliding rod (307) is inserted in the first sliding tube (306), the bottom end of the sliding rod (307) is inserted in the second sliding tube (308), the bottom end of the second sliding tube (308) is hinged on the baffle (302), a compression spring (313) is sleeved on the sliding rod (307), and a rotating shaft (313) is rotatably installed between the bottoms of the two baffles (302). 11), ratchets (310) are fixedly connected at both ends of the rotating shaft (311), a pawl (309) is hingedly connected to the outer wall of the baffle (302) above the ratchet (310), and the pawl (309) is cooperatively connected to the ratchet (310), and a plurality of second scrapers (312) with magnetic properties are fixedly connected to the outer wall of the rotating shaft (311) at intervals along the axial direction, and the second scrapers (312) can be adsorbed on the inner wall of the exhaust pipe (3).

2. The clean waste heat utilization steam production boiler according to claim 1 is characterized in that: An adjustment base is installed on the bottom of the boiler body (1), and the adjustment base includes a clamping plate (5), a first sliding sleeve (6), a first sliding rod (7), a positioning pin (9), a second sliding sleeve (10) and a second sliding rod (11). The first sliding sleeve (6) is fixedly connected to the bottom of the clamping plate (5), and the clamping plate (5) is against both sides of the boiler body (1). The first sliding sleeve (6) is sleeved on both ends of the first sliding rod (7). The first sliding sleeve (6) is provided with a positioning hole (8), and the positioning pin (9) is screwed into the positioning hole (8). The second sliding sleeve (10) is fixedly connected to the bottom surface of the first sliding rod (7), and both ends of the second sliding rod (11) are inserted into the second sliding sleeve (10).

3. The clean waste heat utilization steam production boiler according to claim 2 is characterized in that: A buffer structure is fixedly connected to the bottom surface of the second slide bar (11), and the buffer structure comprises an upper bracket (12), an upper slide tube (13), a guide rod (14), a buffer spring (15), a lower slide tube (16) and a lower bracket (17); the upper bracket (12) is fixedly connected to the bottom surface of the second slide bar (11); the upper slide tube (13) is vertically fixedly connected to the bottom surface of the upper bracket (12); the lower slide tube (16) is vertically fixedly connected to the upper surface of the lower bracket (17); the top end of the guide rod (14) is inserted into the upper slide tube (13); the bottom end of the guide rod (14) is inserted into the lower slide tube (16); and the buffer spring (15) is sleeved on the guide rod (14).

4. The clean waste heat utilization steam production boiler according to claim 3 is characterized in that: Adjustable legs are installed on the side walls of the lower bracket (17).

5. The clean waste heat utilization steam production boiler according to claim 4 is characterized in that: The adjusting leg comprises a support member (18), a connecting tube (19), a connecting rod (20), a connecting plate (21), an adjusting stud (22) and a rubber pad (24); the support member (18) is fixedly connected to the outer wall of the lower bracket (17); the connecting tube (19) is vertically fixedly connected to the bottom of the support member (18); the connecting rod (20) is vertically inserted into the connecting tube (19); the connecting plate (21) is horizontally fixedly connected to the bottom end of the connecting rod (20); a through hole (23) is vertically opened on the connecting plate (21); the adjusting stud (22) is vertically screwed into the through hole (23); and the rubber pad (24) is fixedly connected to the bottom end of the adjusting stud (22).

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