Thermal power plant hearth pipeline soot blower

Abstract

The invention relates to the technical field of pipeline blockage blowing, in particular to a thermal power plant hearth pipeline soot blowing device which comprises an outer pipe component, an inner pipe component, an inner pipe component, an outer pipe component and a soot blower, the outer pipe component comprises an air supply part and a supporting part arranged on the side face of the air supply part, and portable air inlet equipment is arranged in the air supply part; the cleaning component comprises an air outlet mechanism and a wall scraping mechanism arranged on the side face of the air outlet mechanism. Wherein the air outlet mechanism comprises an air blowing structure, the air blowing structure comprises a wedge-shaped plate, a limiting plate is arranged on the outer side of the wedge-shaped plate, a second elastic piece is arranged at the top of the limiting plate, air pressure is increased through blocking of a sliding plate, air pushes a rotating disc to drive an inclined sliding plate to scrape the inner wall of the sampling pipe before blowing, and the cleaning effect is improved; after cleaning is completed, the air outlet is stored in the telescopic pipe to be protected, at the moment, the pressing cylinder can be rotated, the telescopic pipe is retracted, the size of the whole device is reduced, and carrying and transferring are convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline blowing, in particular to a boiler furnace pipeline ash blowing device. BACKGROUND

[0002] In the production enterprises such as thermal power generation, when the internal flue dust of the boiler furnace is too much, the heat transfer coefficient of the heating surface is reduced, the heat transfer is reduced, the pipe wall temperature rises, the efficiency and safety are affected, and the accumulated ash on the inner wall of the furnace and the pipeline needs to be cleaned regularly. At present, the commonly used dust removal equipment is an ash blowing device. It is usually necessary to introduce a compressed air to blow the sampling pipe, or to add an automatic blowing device. This requires that the compressed air pipeline in the production site should be distributed in each furnace pipeline, which will greatly increase the production cost. Sometimes, there is a lot of accumulated water in the long-term unused compressed air pipeline, and long-term drainage work is needed when using it. If the accumulated water is not drained, it will further aggravate the blockage.

[0003] Therefore, a dust blowing device that can be conveniently transported and does not require a gas source is needed. SUMMARY

[0004] In view of the problems existing in the prior art, the present application is proposed.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a boiler furnace pipeline ash blowing device, comprising an outer pipe component, including a blowing part and a supporting part arranged on the side of the blowing part; and a cleaning component, including an air outlet mechanism and a wall scraping mechanism arranged on the side of the air outlet mechanism; wherein the air outlet mechanism comprises a blowing structure, the blowing structure comprises a wedge-shaped plate, the outer side of the wedge-shaped plate is provided with a limiting plate, and the top of the limiting plate is provided with a second elastic member.

[0006] As a preferred scheme of the boiler furnace pipeline ash blowing device, the blowing part comprises a mounting cylinder, the inside of the mounting cylinder is provided with a motor, the top of the mounting cylinder is provided with a heat dissipation opening, the side of the motor is provided with a containing bin, the side of the containing bin is provided with an opening, and the upper part of the side of the containing bin close to the motor is provided with an air suction hole.

[0007] As a preferred scheme of the boiler furnace pipeline ash blowing device, the containing bin is provided with a fan blade, the side of the fan blade is connected with the output end of the motor, and the side of the mounting cylinder is provided with a switch for controlling the motor.

[0008] As a kind of preferred scheme of the furnace pipe soot blowing device of the power plant of the present application, wherein: the support part includes the support pipe arranged at the side of the accommodating chamber, the side of the support pipe is connected with the opening, the outer wall of the support pipe is provided with screw thread, the end of the support pipe away from the accommodating chamber is provided with wedge-shaped clamp, the outer wall of the wedge-shaped clamp is provided with clamping groove.

[0009] As a kind of preferred scheme of the furnace pipe soot blowing device of the power plant of the present application, wherein: the outer wall of the wedge-shaped clamp is provided with the compression cylinder, the end of the compression cylinder away from the accommodating chamber is provided with the top ring.

[0010] As a kind of preferred scheme of the furnace pipe soot blowing device of the power plant of the present application, wherein: the air outlet mechanism includes the telescopic pipe arranged in the support pipe, the inside of the telescopic pipe is provided with pressure bearing structure, the side of the pressure bearing structure is provided with air blowing structure.

[0011] As a kind of preferred scheme of the furnace pipe soot blowing device of the power plant of the present application, wherein: the pressure bearing structure includes the sliding plate arranged in the telescopic pipe, the side of the sliding plate is provided with spiral plate, the side of the spiral plate is provided with first elastic member, the side of the sliding plate is provided with pressing plate, the end of the first elastic member away from the sliding plate is provided with positioning plate, the outer side of the positioning plate is connected with the telescopic pipe, the end of the spiral plate away from the sliding plate penetrates the positioning plate, the end of the spiral plate away from the sliding plate is provided with compression cap, the side of the compression cap is provided with inclined slot.

[0012] As a kind of preferred scheme of the furnace pipe soot blowing device of the power plant of the present application, wherein: the wedge-shaped plate is arranged on the outer wall of the telescopic pipe, the end of the second elastic member away from the limiting plate is connected with the telescopic pipe, the end of the wedge-shaped plate close to the sliding plate is provided with air inlet hole, the end of the wedge-shaped plate away from the air inlet hole is provided with air outlet, and the air outlet is communicated with the air inlet hole.

[0013] As a kind of preferred scheme of the furnace pipe soot blowing device of the power plant of the present application, wherein: the wall scraping mechanism includes the rotating disc arranged at the side of the positioning plate, the inside of the rotating disc is provided with spiral groove matched with the spiral plate, the outer edge of the side of the rotating disc is provided with T-shaped block, and the side of the rotating disc is provided with scraping plate structure.

[0014] As a kind of preferred scheme of the furnace pipe soot blowing device of the power plant of the present application, wherein: the scraping plate structure includes the inclined sliding plate arranged at the side of the rotating disc, the side of the inclined sliding plate close to the T-shaped block is provided with T-shaped slot, the top of the inclined sliding plate is provided with scraping tooth, the side of the inclined sliding plate away from the rotating disc is provided with wedge surface, and the wedge surface is in contact with the inner wall of the inclined slot.

[0015] The beneficial effects of the present application: the device uses the rotation of the fan to blow air into the telescopic pipe, and the air pressure is raised by the blocking of the sliding plate. The air pushes the rotating disc to drive the inclined sliding plate to scrape the inner wall of the sampling pipe before blowing, thereby improving the cleaning effect. After cleaning, the air outlet is stored inside the telescopic pipe and protected. At this time, the compression cylinder can be rotated, and the telescopic pipe is retracted. At this time, the volume of the entire device is reduced, facilitating transportation and carrying. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0017] Figure 1 It is the overall structure diagram in the present application.

[0018] Figure 2 It is the structure diagram of the air supply part in the present application.

[0019] Figure 3 It is the structure diagram of the support part in the present application.

[0020] Figure 4 It is the structure diagram of the air outlet mechanism in the present application.

[0021] Figure 5 It is the structure diagram of the pressure bearing structure in the present application.

[0022] Figure 6 It is the structure diagram of the wall scraping mechanism in the present application. DETAILED DESCRIPTION

[0023] In order to make those skilled in the art better understand the present application, the present application will be further described in detail below in combination with specific embodiments and drawings.

[0024] The terms used in the present application are those general terms currently widely used in the art in consideration of the functions of the present application, but these terms can be changed according to the intention of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms can be selected by the applicant, and in this case, the detailed meaning thereof will be described in the detailed description of the present application. Therefore, the terms used in the specification should not be understood as mere names, but based on the meaning of the terms and the overall description of the present application.

[0025] Embodiment 1, refer to Figures 1 to 5For the first embodiment of the present application, the embodiment provides a boiler furnace pipeline soot blowing device, comprising, an outer pipe member 100, comprising a blowing part 101 and a support part 12 arranged on the side of the blowing part 101, and a portable air inlet device arranged inside the blowing part 101; and a cleaning member 200, comprising an air outlet mechanism 201 and a wall scraping mechanism 202 arranged on the side of the air outlet mechanism 201, the cleaning member 200 can slide inside the outer pipe member 100, when cleaning the inside of the sampling tube, the end of the cleaning member 200 extends into the dust accumulation place inside the sampling tube, when the cleaning is completed, most of the cleaning member 200 can be recovered into the outer pipe member 100, reducing the volume of the whole device, facilitating carrying and transportation; wherein the air outlet mechanism 201 comprises a blowing structure 213, the blowing structure 213 comprises a wedge-shaped plate 2131, the outer side of the wedge-shaped plate 2131 is provided with a limiting plate 2132, and the top of the limiting plate 2132 is provided with a second elastic member 2133.

[0026] When working, the cleaning member 200 extends into the inside of the sampling tube, the end of the cleaning member 200 reaches the dust accumulation place inside the sampling tube, the air outside the sampling tube blowing part 101 will send air to the cleaning member 200, and the air pressure cleaning member 200 will scrape the inner wall of the sampling tube, and the dust accumulated on the inner wall of the sampling tube will be scraped off, facilitating subsequent blowing, the air will open the blowing structure 213, and the dust will be blown, so as to achieve the purpose of cleaning the dust on the inner wall of the sampling tube, when the cleaning is completed, the blowing part 101 stops blowing, and the cleaning member 200 will automatically recover the blowing structure 213, at this time, the cleaning member 200 is recovered into the outer pipe member 100, so as to reduce the volume of the whole device, facilitating carrying and transportation.

[0027] Embodiment 2, refer to Figures 1-5 For the second embodiment of the present application, different from the previous embodiment, the blowing part 101 comprises a mounting cylinder 111, the inside of the mounting cylinder 111 is provided with a motor 112, the top of the mounting cylinder 111 is provided with a heat dissipation opening 113, the heat dissipation opening 113 is beneficial to heat dissipation of the motor 112, the side of the motor 112 is provided with a containing bin 114, the side of the containing bin 114 is provided with an opening 118, the side of the containing bin 114 close to the motor 112 is provided with an air suction hole 115 at the upper portion, the containing bin 114 is provided with a fan blade 116, the side of the fan blade 116 is connected with the output end of the motor 112, the side of the mounting cylinder 111 is provided with a switch 117 for controlling the motor 112, the switch 117 can control the start or stop of the motor 112, the motor 112 rotates to drive the fan blade 116 to rotate, the fan blade 116 will suck air through the air suction hole 115 on the containing bin 114, and the air will be discharged into the support pipe 121 through the containing bin 114.

[0028] Further, the support part 12 comprises a support pipe 121 arranged on the side of the accommodating cavity 114, the side of the support pipe 121 is connected with the opening 118, the outer wall of the support pipe 121 is provided with a thread 122, the end of the support pipe 121 away from the accommodating cavity 114 is provided with a wedge-shaped clamping opening 123, the outer wall of the wedge-shaped clamping opening 123 is provided with a clamping groove 124, the number of the clamping groove 124 is multiple, the wedge-shaped clamping opening 123 is divided into several parts, the outer wall of the wedge-shaped clamping opening 123 is provided with a pressing cylinder 125, the end of the pressing cylinder 125 away from the accommodating cavity 114 is provided with a top ring 126, the pressing cylinder 125 is connected with the thread 122 of the support pipe 121, and the top ring 126 is in contact with the outer wall of the wedge-shaped clamping opening 123.

[0029] Further, the air outlet mechanism 201 comprises a telescopic pipe 211 arranged in the support pipe 121, the inside of the telescopic pipe 211 is provided with a pressure bearing structure 212, the side of the pressure bearing structure 212 is provided with a blowing structure 213, when the pressing cylinder 125 is rotated to drive the pressing cylinder 125 to slide in the direction close to the accommodating cavity 114, the top ring 126 will extrude the wedge-shaped clamping opening 123, and the telescopic pipe 211 in the support pipe 121 is clamped tightly, when the pressing cylinder 125 is rotated to drive the pressing cylinder 125 to slide in the direction away from the accommodating cavity 114, the wedge-shaped clamping opening 123 will be relaxed, and the telescopic pipe 211 can slide in the support pipe 121.

[0030] Further, the pressure bearing structure 212 comprises a sliding plate 2121 arranged in the telescopic pipe 211, the sliding plate 2121 can slide in the telescopic pipe 211, the side of the sliding plate 2121 is provided with a spiral plate 2122, the side of the spiral plate 2122 is provided with a first elastic element 2123, the side of the sliding plate 2121 is provided with a pressing plate 2124, the end of the first elastic element 2123 away from the sliding plate 2121 is provided with a positioning plate 2127, the outer side of the positioning plate 2127 is connected with the telescopic pipe 211, the positioning plate 2127 is fixedly connected with the telescopic pipe 211, the end of the spiral plate 2122 away from the sliding plate 2121 penetrates through the positioning plate 2127, the inside of the positioning plate 2127 is provided with a through hole, so the positioning plate 2127 is actually annular, the end of the spiral plate 2122 away from the sliding plate 2121 is provided with a pressing cap 2125, and the side of the pressing cap 2125 is provided with an inclined groove 2126.

[0031] Further, the wedge-shaped plate 2131 is arranged on the outer wall of the telescopic pipe 211, the end of the wedge-shaped plate 2131 close to the accommodating cavity 114 is rotationally connected with the telescopic pipe 211, the end of the second elastic element 2133 away from the limiting plate 2132 is connected with the telescopic pipe 211, the end of the wedge-shaped plate 2131 close to the sliding plate 2121 is provided with an air inlet hole 2134, the end of the wedge-shaped plate 2131 away from the air inlet hole 2134 is provided with an air outlet 2135, and the air outlet 2135 is in communication with the air inlet hole 2134.

[0032] When the dust collector 100 is working, the user rotates the pressing cylinder 125, and the pressing cylinder 125 slides away from the containing bin 114, the wedge-shaped clamping opening 123 is loosened, and the telescopic pipe 211 is extended into the sampling pipe, until the end of the telescopic pipe 211 reaches the dust accumulation position on the inner wall of the sampling pipe. When the motor 112 is turned on, the motor 112 drives the fan blade 116 to rotate, the fan blade 116 sucks air through the air inlet hole 115 on the containing bin 114, and the air is discharged into the supporting pipe 121 through the containing bin 114. The air enters the telescopic pipe 211 from the supporting pipe 121, and the air contacts the sliding plate 2121. The side of the sliding plate 2121 away from the containing bin 114 is pressed by the first elastic member 2123, and the air is blocked from moving towards the end of the telescopic pipe 211. Since the fan blade 116 continuously sends air, the air pressure in the telescopic pipe 211 increases, until the pressure of the first elastic member 2123 is overcome, and the sliding plate 2121 is pushed to slide.

[0033] The sliding of the sliding plate 2121 drives the pressing plate 2124 to slide towards the wedge-shaped plate 2131. After the pressing plate 2124 contacts the wedge-shaped plate 2131, the wedge-shaped plate 2131 is pressed and rotated, and the second elastic member 2133 is compressed. The end of the wedge-shaped plate 2131 away from the containing bin 114 rotates outwardly from the telescopic pipe 211. At this stage, the pressing plate 2124 blocks the air inlet hole 2134. The pressing plate 2124 continues to slide until the outer edge of the sliding plate 2121 contacts the edge of the air inlet hole 2134. At this time, the pressing plate 2124 continues to slide, and the air inlet hole 2134 contacts the air with high air pressure on the side of the sliding plate 2121. At this time, the high-pressure air enters the wedge-shaped plate 2131 through the air inlet hole 2134 and is sprayed out of the air outlet hole 2135, which can blow the dust in the sampling pipe.

[0034] Embodiment 3, refer to Figures 1-6 The third embodiment of the present application is different from the previous embodiment. The wall scraping mechanism 202 includes a rotating disc 221 arranged on the side of the positioning plate 2127. The rotating disc 221 has a spiral groove 222 inside which cooperates with the spiral plate 2122. When the sliding plate 2121 slides, the spiral plate 2122 slides together with the sliding plate 2121, and the spiral plate 2122 drives the rotating disc 221 to rotate. The side of the rotating disc 221 is provided with a T-shaped block 223, and the side of the rotating disc 221 is provided with a scraping plate structure 224.

[0035] Further, the scraper structure 224 includes an inclined slide plate 2241 arranged on the side of the rotating disc 221, the inclined slide plate 2241 is provided with a T-shaped slot 2242 on the side close to the T-shaped block 223, the top of the inclined slide plate 2241 is provided with a scraper tooth 2243, the side of the inclined slide plate 2241 away from the rotating disc 221 is provided with a wedge surface 2244, the wedge surface 2244 is in contact with the inner wall of the inclined slot 2126, when the device is not working, the pressure cap 2125 will store the inclined slide plate 2241 in the inclined slot 2126 by the inclined slot 2126, while the slide plate 2121 slides, the pressure cap 2125 will also slide away from the rotating disc 221, when the rotating disc 221 rotates, since the pressure cap 2125 no longer presses the inclined slide plate 2241, the inclined slide plate 2241 will slide to the outside of the rotating disc 221 under the effect of centrifugal force, and rotate together with the rotating disc 221, the scraper tooth 2243 at the outer end of the inclined slide plate 2241 will scrape the inner wall of the sampling tube, and the inner wall of the sampling tube is scraped before blowing, which improves the cleaning effect.

[0036] When working, the motor 112 rotates to drive the fan blade 116 to rotate, the fan blade 116 will use the air suction hole 115 on the containing bin 114 to suck air, and the air will be discharged into the supporting pipe 121 through the containing bin 114, the air enters the telescopic pipe 211 from the supporting pipe 121, drives the slide plate 2121 to slide, the slide plate 2121 will drive the spiral plate 2122 to slide together, the spiral plate 2122 will drive the rotating disc 221 to rotate, the pressure cap 2125 will also slide away from the rotating disc 221, when the rotating disc 221 rotates, since the pressure cap 2125 no longer presses the inclined slide plate 2241, the inclined slide plate 2241 will slide to the outside of the rotating disc 221 under the effect of centrifugal force, and rotate together with the rotating disc 221, the scraper tooth 2243 at the outer end of the inclined slide plate 2241 will scrape the inner wall of the sampling tube, the pressing plate 2124 continues to slide, until the outer edge of the slide plate 2121 is in contact with the edge of the air inlet hole 2134, at this time, the pressing plate 2124 continues to slide, the air inlet hole 2134 will be in contact with the air with high air pressure on the side of the slide plate 2121, at this time, the high-pressure air will enter the wedge-shaped plate 2131 through the air inlet hole 2134, and be sprayed out from the air outlet 2135, which can blow the dust in the sampling tube.

[0037] When the cleaning is completed, the motor 112 is turned off, the air supply is stopped, the sliding plate 2121 slides toward the containing bin 114 under the action of the first elastic member 2123, the cap 2125 slides together with the spiral plate 2122, the inclined sliding plate 2241 is extruded by the inclined groove 2126, the inclined sliding plate 2241 rotates toward the central axis of the rotating disc 221, the cap 2125 is accommodated in the inclined groove 2126, the sliding plate 2121 takes away the pressing plate 2124 from the wedge-shaped plate 2131, under the action of the second elastic member 2133, the wedge-shaped plate 2131 rotates to reset away from the one end of the containing groove, the air outlet 2135 is accommodated in the telescopic pipe 211 and is protected, at this time, the telescopic pipe 211 can be rotated and retracted, at this time, the volume of the whole device is reduced, and the device is convenient to carry and transfer.

[0038] Finally, it should be noted that the methods and devices described in detail above are only embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present application.

Claims

1. A soot blowing device for furnace pipes in a thermal power plant, characterized in that: include, The outer pipe component (100) includes an air supply section (101) and a support section (12) disposed on the side of the air supply section (101); and, The cleaning component (200) includes an air outlet mechanism (201) and a wall scraping mechanism (202) disposed on the side of the air outlet mechanism (201); The air outlet mechanism (201) includes a blowing structure (213), the blowing structure (213) includes a wedge plate (2131), a limiting plate (2132) is provided on the outer side of the wedge plate (2131), and a second elastic member (2133) is provided on the top of the limiting plate (2132).

2. The soot blowing device for furnace pipes in a thermal power plant as described in claim 1, characterized in that: The air supply unit (101) includes a mounting cylinder (111), inside which a motor (112) is installed. A heat dissipation vent (113) is provided on the top of the mounting cylinder (111), and a receiving chamber (114) is provided on the side of the motor (112). An opening (118) is provided on the side of the receiving chamber (114), and an air suction hole (115) is provided on the upper part of the receiving chamber (114) near the motor (112).

3. The soot blowing device for furnace pipes in a thermal power plant as described in claim 2, characterized in that: The accommodating compartment (114) is provided with a fan blade (116), the side of the fan blade (116) is connected to the output end of the motor (112), and the side of the mounting cylinder (111) is provided with a switch (117) for controlling the motor (112).

4. The soot blowing device for furnace pipes in a thermal power plant as described in claim 3, characterized in that: The support part (12) includes a support tube (121) disposed on the side of the accommodating compartment (114). The side of the support tube (121) is connected to the opening (118). The outer wall of the support tube (121) is provided with a thread (122). The end of the support tube (121) away from the accommodating compartment (114) is provided with a wedge-shaped clamp (123). The outer wall of the wedge-shaped clamp (123) is provided with a clamping groove (124).

5. The soot blowing device for furnace pipes in thermal power plants as described in claim 4, characterized in that: The outer wall of the wedge-shaped clamp (123) is provided with a pressure cylinder (125), and the end of the pressure cylinder (125) away from the receiving chamber (114) is provided with a top ring (126).

6. The soot blowing device for furnace pipes in a thermal power plant as described in claim 5, characterized in that: The air outlet mechanism (201) includes a telescopic tube (211) disposed inside the support tube (121), the telescopic tube (211) is provided with a pressure-bearing structure (212) inside, and a blowing structure (213) is provided on the side of the pressure-bearing structure (212).

7. The soot blowing device for furnace pipes in a thermal power plant as described in claim 6, characterized in that: The pressure-bearing structure (212) includes a sliding plate (2121) disposed inside the telescopic tube (211). A spiral plate (2122) is disposed on the side of the sliding plate (2121). A first elastic element (2123) is disposed on the side of the spiral plate (2122). A pressure plate (2124) is disposed on the outer edge of the side of the sliding plate (2121). A positioning plate (2127) is disposed at the end of the first elastic element (2123) away from the sliding plate (2121). The outer side of the positioning plate (2127) is connected to the telescopic tube (211). The end of the spiral plate (2122) away from the sliding plate (2121) passes through the positioning plate (2127). A pressure cap (2125) is disposed at the end of the spiral plate (2122) away from the sliding plate (2121). A slanted groove (2126) is opened on the side of the pressure cap (2125).

8. The soot blowing device for furnace pipes in a thermal power plant as described in claim 7, characterized in that: The wedge plate (2131) is disposed on the outer wall of the telescopic tube (211). The end of the second elastic member (2133) away from the limiting plate (2132) is connected to the telescopic tube (211). An air inlet (2134) is provided at the end of the wedge plate (2131) near the slide plate (2121). An air outlet (2135) is provided at the end of the wedge plate (2131) away from the air inlet (2134). The air outlet (2135) is connected to the air inlet (2134).

9. The soot blowing device for furnace pipes in a thermal power plant as described in claim 8, characterized in that: The scraping mechanism (202) includes a turntable (221) disposed on the side of the positioning plate (2127). The turntable (221) has a spiral groove (222) inside that cooperates with the spiral plate (2122). A T-shaped block (223) is disposed on the outer edge of the side of the turntable (221). A scraper structure (224) is disposed on the side of the turntable (221).

10. The soot blowing device for furnace pipes in a thermal power plant as described in claim 9, characterized in that: The scraper structure (224) includes a slanted slide plate (2241) disposed on the side of the turntable (221). The slanted slide plate (2241) has a T-shaped groove (2242) on the side near the T-shaped block (223). The top of the slanted slide plate (2241) is provided with scraping teeth (2243). The slanted slide plate (2241) has a wedge-shaped surface (2244) on the side away from the turntable (221). The wedge-shaped surface (2244) is in contact with the inner wall of the slanted groove (2126).

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