Biomass boiler heat supply structure

Abstract

The utility model discloses a biomass boiler heat supply structure, which relates to the technical field of boilers and comprises an inner frame, a single boiler barrel is fixedly mounted at the top of the inner frame, downcomers are fixedly mounted on two sides in the inner frame, and a plurality of water cooling pipes are fixedly connected between the two downcomers and the single boiler barrel. A plurality of water cooling rows are further fixedly connected between the two descending pipes and the single boiler barrel, carbon scraping mechanisms are arranged on the opposite sides of the two water cooling rows in the same column respectively, each carbon scraping mechanism comprises an installation rod, and the installation rods are movably installed on one sides of the water cooling rows through two connecting bases. A traditional water cooling wall is arranged to be of a water cooling row structure, a plurality of water flowing grooves are formed in the water cooling row, the heating uniformity of liquid can be guaranteed, meanwhile, the carbon scraping mechanism is arranged on one side of the heating face of the water cooling row, and the carbon scraping mechanism is composed of an installation rod, a connecting base, a scraper and other components. Attachments such as carbon ash on one side of the water-cooling grate can be conveniently and rapidly cleaned during regular maintenance, and normal heating of the water-cooling grate is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to a biomass boiler heating structure. Background Art

[0002] The boiler heating structure mainly involves multiple components inside the boiler, which work together to generate and transfer heat. Generally, it includes the combustion chamber, heating surface, water-cooled wall, downcomer single drum and other structures. The above structures together constitute a heat receiving and heat conducting function.

[0003] The water-cooled wall is the main heating surface of a modern boiler, located around the furnace. Its main task is to absorb the radiant heat from the furnace and evaporate water. The downcomers are connected to the water-cooled wall to collect, mix, and redistribute the working fluid. However, due to the characteristics of the fuel used in biomass boilers, when the water-cooled wall absorbs the radiant heat generated by the combustion of biomass fuel, the biomass fuel contains a large amount of alkaline elements such as K and Na. During the high-temperature combustion process, these alkaline elements will volatilize and react with oxygen in the flue gas to form low-melting-point oxides such as K2O and Na2O. These oxides lower the softening temperature of ash particles in the flue gas, making it easier for ash particles to adhere to the surface of heat exchange tubes such as the water-cooled wall, which has a lower temperature, forming an initial ash layer. The accumulation of carbon ash will form a thermal resistance layer, hindering the transfer of heat from the flue gas to the water-cooled wall, thereby reducing the heat transfer efficiency of the boiler, which will lead to increased energy consumption and operating costs. At the same time, the accumulation of carbon ash may also cause uneven heating of the water-cooled wall tubes, resulting in local overheating, which can cause safety accidents such as pipe rupture. Utility Model Content

[0004] The purpose of the utility model is to provide a biomass boiler heating structure, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A biomass boiler heating structure includes an inner frame, a single drum is fixedly installed on the top of the inner frame, downpipes are fixedly installed on both sides of the inner frame, a plurality of water-cooling pipes are fixedly connected between the two downpipes and the single drum, a plurality of water-cooling rows are also fixedly connected between the two downpipes and the single drum, and a carbon scraping mechanism is respectively provided on opposite sides of two water-cooling rows in the same row, and the carbon scraping mechanism includes a mounting rod, which is movably mounted on one side of the water-cooling row through two connecting seats.

[0007] As a further preferred embodiment of the present invention, a plurality of water flow grooves are provided in the water cooling radiator, and a channel is connected between two of the water flow grooves. The provision of a plurality of water flow grooves in the water cooling radiator can ensure the circulation of water flow and enhance the pressure resistance of the entire water cooling radiator. At the same time, the channel connection between the plurality of water flow grooves is conducive to the uniform introduction of heat.

[0008] As a further preferred embodiment of the present invention, a first connecting pipe is fixedly installed at one end of the water flow trough, and a second connecting pipe is fixedly installed at the other end of the water flow trough. The first connecting pipe is fixedly installed on the downcomer, and the second connecting pipe is fixedly installed on the single drum. With the help of the arrangement of the first connecting pipe and the second connecting pipe, the cavity of the single drum and the downcomer can be connected.

[0009] As a further preferred solution of the present invention, slide grooves are provided on both sides of the water cooling row.

[0010] As a further preferred embodiment of the present invention, the mounting rod is U-shaped, a mounting groove is provided at the bottom of the mounting rod, a scraper is inserted into the mounting groove, plug blocks are fixedly installed on both sides of the mounting rod, mounting holes are provided in the plug blocks and the mounting rod, and fixing studs are inserted into the mounting holes.

[0011] As a further preferred solution of the present invention, a limiting groove is provided at the center position of one side of the connecting seat, a screw groove is provided on the inner side of the limiting groove, a slider is fixedly installed at the center position of the side of the connecting seat opposite to the limiting groove, the connecting seat is inserted and installed on the plug block through the limiting groove, and one side of the fixed stud is also threadedly connected to the screw groove, and the two connecting seats are respectively slidably installed on one side of the water cooling radiator through the slider on one side, and the slider is slidably installed in the corresponding slide groove, a scraper is installed in the mounting rod, and the mounting rod is slidably installed on the side of the water cooling radiator through the connecting seat and the slider. During maintenance, the mounting rod and the scraper can be used to scrape and clean the carbon deposits on the heating surface of the water cooling radiator.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The biomass boiler heating structure described in the present invention configures the traditional water-cooled wall into a water-cooled row structure, and opens a plurality of water flow grooves in the water-cooled row, which can ensure the uniformity of liquid heating. At the same time, a carbon scraping mechanism is provided on one side of the heating surface of the water-cooled row, and the carbon scraping mechanism is composed of a mounting rod, a connecting seat, a scraper and other components, which can facilitate the rapid cleaning of carbon ash and other attachments on one side of the water-cooled row during regular maintenance, thereby ensuring normal heating of the water-cooled row. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the water cooling radiator structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the water cooling radiator of the present invention;

[0017] Figure 4 This is a schematic diagram of the disassembled carbon scraping mechanism structure of the present invention.

[0018] In the figure: 1. Inner frame; 2. Single drum; 3. Downcomer; 4. Water-cooling pipe; 5. Water-cooling radiator; 6. First connecting pipe; 7. Second connecting pipe; 8. Carbon scraper mechanism; 9. Mounting rod; 10. Connecting seat; 11. Slide groove; 12. Water flow groove; 13. Slider; 14. Limiting groove; 15. Screw groove; 16. Mounting groove; 17. Scraper; 18. Insert block; 19. Mounting hole; 20. Fixing stud. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figures 1-4 As shown, the utility model provides a biomass boiler heating structure, including an inner frame 1, a single boiler drum 2 is fixedly installed on the top of the inner frame 1, downcomers 3 are fixedly installed on both sides of the inner frame 1, a plurality of water-cooling pipes 4 are fixedly connected between the two downcomers 3 and the single boiler drum 2, a plurality of water-cooling rows 5 are also fixedly connected between the two downcomers 3 and the single boiler drum 2, and a carbon scraping mechanism 8 is respectively provided on the opposite sides of two water-cooling rows 5 in the same row, and the carbon scraping mechanism 8 includes a mounting rod 9, which is movably mounted on one side of the water-cooling row 5 through two connecting seats 10.

[0021] like Figure 1-Figure 3 As shown, a plurality of water flow grooves 12 are provided in the water-cooling radiator 5, and a channel is connected between two water flow grooves 12. The provision of a plurality of water flow grooves 12 in the water-cooling radiator 5 can ensure the circulation of water flow and improve the pressure resistance of the entire water-cooling radiator 5. At the same time, the channel connection between the plurality of water flow grooves 12 is conducive to the uniform introduction of heat. A first connecting pipe 6 is fixedly installed at one end of the water flow groove 12, and a second connecting pipe 7 is fixedly installed at the other end of the water flow groove 12. The first connecting pipe 6 is fixedly installed on the downcomer 3, and the second connecting pipe 7 is fixedly installed on the single drum 2. With the arrangement of the first connecting pipe 6 and the second connecting pipe 7, the single drum 2 and the downcomer 3 can be connected in cavity.

[0022] like Figure 2-Figure 4As shown, both sides of the water cooling radiator 5 are provided with a slide groove 11, the mounting rod 9 is a U-shaped structure, the bottom of the mounting rod 9 is provided with a mounting groove 16, a scraper 17 is inserted into the mounting groove 16, and plug blocks 18 are fixedly installed on both sides of the mounting rod 9. Mounting holes 19 are provided in the plug blocks 18 and the mounting rod 9, and fixing studs 20 are inserted into the mounting holes 19. A limiting groove 14 is provided at the center of one side of the connecting seat 10, and a screw groove 15 is provided inside the limiting groove 14. A sliding groove is fixedly installed at the center of the side of the connecting seat 10 opposite to the limiting groove 14. Block 13, the connecting seat 10 is installed on the insert block 18 through the limiting groove 14, and one side of the fixing stud 20 is also threadedly connected to the screw groove 15, and the two connecting seats 10 are respectively slidably installed on one side of the water-cooling radiator 5 through the slider 13 on one side, and the slider 13 is slidably installed in the corresponding slide groove 11, and a scraper 17 is installed in the mounting rod 9, and the mounting rod 9 is slidably installed on the side of the water-cooling radiator 5 through the connecting seat 10 and the slider 13. During maintenance, the mounting rod 9 and the scraper 17 can be used to scrape and clean the carbon deposits on the heating surface of the water-cooling radiator 5.

[0023] It should be noted that the present invention is a biomass boiler heating structure. When water passes through the first connecting pipe 6 and the second connecting pipe 7 and the water flow groove 12 in the water cooling row 5, on the one hand, the pressure resistance of the entire water cooling row 5 can be improved through the multiple water flow grooves 12 in the water cooling row 5. At the same time, the water cooling row 5 can evenly heat the water in the multiple water flow grooves 12 in the water cooling row 5 after absorbing heat radiation.

[0024] When the biomass boiler is regularly inspected and maintained, the grate of the biomass boiler can be pulled out, and then personnel can enter the boiler for inspection and manually pull the installation rod 9, so that the two ends of the installation rod 9 respectively drive the corresponding connecting seat 10 to slide on one side of the water-cooling row 5, and the slider 13 on one side of the connecting seat 10 slides in the corresponding slide groove 11, thereby realizing the guided sliding of the installation rod 9 on the side of the water-cooling row 5, and the installation rod 9 can scrape and clean the carbon deposits and other attachments on one side of the water-cooling row 5 through the scraper 17, thereby ensuring the normal heat absorption of the water-cooling row 5 during later use.

[0025] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A biomass boiler heating structure, characterized by: The invention comprises an inner frame (1), a single boiler drum (2) is fixedly mounted on the top of the inner frame (1), down pipes (3) are fixedly mounted on both sides of the inner frame (1), a plurality of water cooling pipes (4) are fixedly connected between the two down pipes (3) and the single boiler drum (2), a plurality of water cooling rows (5) are also fixedly connected between the two down pipes (3) and the single boiler drum (2), and a carbon scraping mechanism (8) is respectively provided on opposite sides of two water cooling rows (5) in the same row, and the carbon scraping mechanism (8) comprises a mounting rod (9), and the mounting rod (9) is movably mounted on one side of the water cooling row (5) through two connecting seats (10).

2. The biomass boiler heating structure according to claim 1, characterized in that: A plurality of water flow grooves (12) are provided in the water cooling row (5), and a channel between two of the water flow grooves (12) is connected.

3. The biomass boiler heating structure according to claim 2, characterized in that: A first connecting pipe (6) is fixedly installed at one end of the water flow trough (12), and a second connecting pipe (7) is fixedly installed at the other end of the water flow trough (12); the first connecting pipe (6) is fixedly installed on the downcomer (3), and the second connecting pipe (7) is fixedly installed on the single drum (2).

4. The biomass boiler heating structure according to claim 1, characterized in that: Slide grooves (11) are provided on both sides of the water cooling row (5).

5. The biomass boiler heating structure according to claim 4, characterized in that: The mounting rod (9) is in a U-shaped structure. A mounting groove (16) is provided at the bottom of the mounting rod (9). A scraper (17) is inserted into the mounting groove (16). Insert blocks (18) are fixedly installed on both sides of the mounting rod (9). Mounting holes (19) are provided in the insert blocks (18) and the mounting rod (9). Fixing studs (20) are inserted into the mounting holes (19).

6. The biomass boiler heating structure according to claim 5, characterized in that: A limiting groove (14) is provided at the center position of one side of the connecting seat (10), a screw groove (15) is provided inside the limiting groove (14), a slider (13) is fixedly installed at the center position of the side of the connecting seat (10) opposite to the limiting groove (14), the connecting seat (10) is inserted and installed on the plug (18) through the limiting groove (14), and one side of the fixing stud (20) is also threadedly connected in the screw groove (15), and the two connecting seats (10) are respectively slidably installed on one side of the water cooling radiator (5) through the slider (13) on one side, and the slider (13) is slidably installed in the corresponding slide groove (11).

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