Biomass steam boiler with waste heat recovery device

Abstract

The utility model discloses a biomass steam boiler with a waste heat recovery device, which comprises a biomass steam boiler body, the top of the biomass steam boiler body is communicated with an air outlet pipe, the right side of the biomass steam boiler body is fixedly provided with a placing plate, the top of the placing plate is fixedly provided with a water tank, and the top of the water tank is communicated with a connecting pipe. When the biomass steam boiler is used, liquid such as normal-temperature water is poured into the water tank, the biomass steam boiler body is started, high-temperature flue gas generated during combustion of the biomass steam boiler body enters the gas outlet pipe, the gas outlet pipe can convey the high-temperature flue gas into the purification bin, and the purification bin is used for purifying the high-temperature flue gas. The purification assembly in the purification bin filters impurities in the high-temperature flue gas, the filtered high-temperature flue gas can enter the water tank to heat normal-temperature water, and the heated normal-temperature water is reused.

Description

Technical Field

[0001] The utility model belongs to the technical field of biomass steam boiler equipment, and in particular relates to a biomass steam boiler with a waste heat recovery device. Background Art

[0002] The biomass steam boiler is a steam boiler that uses biomass fuel as raw material. It is environmentally friendly, fuel-saving, automatic feeding and slag discharge, blower and induced draft fan frequency regulation, fully automatic operation of the boiler, and can automatically adjust the fuel amount according to load changes. The steam output is stable and has multiple protection and alarm measures such as pressure, water level, and exhaust temperature to ensure safe operation of the boiler.

[0003] The patent with publication number CN216244216U discloses an environmentally friendly biomass steam boiler with waste heat recovery function, including a steam boiler body; the inner cavity of the steam boiler body is provided with an inverted U-shaped furnace, and the bottom end of the furnace is provided with a grate; a water chamber is formed between the outer wall of the furnace and the inner wall of the steam boiler body, and the top of the water chamber is connected to a steam outlet pipe; an ash hopper is provided below the grate, and the ash hopper is connected to an air inlet; a smoke interlayer is provided on the outside of the steam boiler body; the smoke interlayer is surrounded by a bottom surface, a surrounding surface and a top surface, and has a smoke receiving chamber; the smoke receiving chamber is connected to the inner cavity of the furnace through a first smoke outlet pipe, and the top of the smoke receiving chamber is connected to a second smoke outlet pipe; a water inlet pipe is spirally wound along the outer wall of the steam boiler body in the smoke receiving chamber; and the inner cavity of the furnace is connected to a feed pipe. The device can fully recover and utilize waste heat on site.

[0004] Biomass steam boilers need to be filled with combustion materials when they are working, but the high-temperature flue gas generated by the combustion of the biomass steam boiler itself will be discharged from the exhaust pipe. This flue gas will not only affect the environment, but also increase the heat around the biomass steam boiler when the high-temperature flue gas is directly discharged. Moreover, this heat cannot be recycled, and the waste heat in the flue gas of the biomass steam boiler cannot be used, resulting in a waste of heat resources. Utility Model Content

[0005] The utility model aims to provide a biomass steam boiler with a waste heat recovery device to solve the technical defect in the background technology that the heat of high-temperature flue gas generated by the combustion of the biomass steam boiler cannot be recovered and utilized.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A biomass steam boiler with a waste heat recovery device comprises a biomass steam boiler body, the top of which is connected to an air outlet pipe, a placement plate is fixedly installed on the right side of the biomass steam boiler body, a water tank is detachably connected to the right side of the biomass steam boiler body by bolts, the bottom of the water tank is in contact with the top of the placement plate, the top of the water tank is connected to a connecting pipe, a purification chamber is fixedly installed on the top of the right side of the biomass steam boiler body, the bottom of the air outlet pipe passes through the interior of the purification chamber and is connected to the purification chamber, the bottom of the purification chamber is connected to an air inlet pipe, the bottom of the air inlet pipe passes through the interior of the water tank, a purification component for purifying exhaust gas is arranged inside the purification chamber, and the bottom end of the air inlet pipe contacts the interior of the connecting pipe.

[0008] As a preferred solution of the utility model, the purification assembly includes a mounting plate, on the left side of which a filter sponge plate and an air purification plate are fixedly installed in sequence from top to bottom. The filter sponge plate and the air purification plate are both located inside the purification bin, and the four corners on the right side of the purification bin are detachably connected to the purification bin by bolts.

[0009] As a preferred solution of the utility model, the bottom of the water tank is connected to a water outlet pipe, the bottom of the water outlet pipe penetrates to the bottom of the placement plate, and the surface of the water outlet pipe is connected to a valve.

[0010] As a further solution of the utility model, a baffle is provided on the right side of the water tank, the left side of the baffle is in contact with the right side of the water tank, and the four corners of the right side of the water tank are detachably connected to the water tank by bolts.

[0011] As a further solution of the utility model, a support block is fixedly installed on the top of the placement plate, a thermometer is fixedly installed inside the support block, and the left side of the thermometer penetrates into the interior of the water tank.

[0012] As a further solution of the utility model, a sealing ring is fixedly installed on the right side of the water tank, and the inside of the sealing ring is in contact with the surface of the thermometer.

[0013] As a further preferred embodiment of the present invention, the interior of the connecting pipe is concave, the interior of the air intake pipe is convex, the top of the connecting pipe surface and the bottom of the air intake pipe surface are both threaded, and the surface thread of the connecting pipe is connected with a threaded turntable, which is used to splice the connecting pipe and the air intake pipe.

[0014] Compared with the prior art, the biomass steam boiler with a waste heat recovery device provided by the utility model has the following beneficial effects:

[0015] 1. When the utility model is used, liquids such as normal temperature water are poured into the water tank, and the biomass steam boiler body is started to work. The high-temperature flue gas generated when the biomass steam boiler body is burned enters the exhaust pipe, and the exhaust pipe can transport the high-temperature flue gas to the inside of the purification chamber. The purification component inside the purification chamber can filter impurities in the high-temperature flue gas. The filtered high-temperature flue gas will enter the water tank to heat the normal temperature water. The heated normal temperature water can be reused. When the insulation effect of the water outlet pipe is not good, the outlet pipe can be wrapped with thermal insulation cotton for insulation.

[0016] 2. When rust or corrosion appears in the water tank, turn the threaded dial so that it is all on the surface of the intake pipe, remove the bolts that fix the water tank, and disassemble the water tank for replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings required for use in the embodiment will be briefly introduced below. Obviously, the drawings described below are only examples of the embodiment of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the utility model;

[0019] Figure 2 This is a schematic diagram of the explosion structure of the purification chamber and purification components in the embodiment of the utility model;

[0020] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 for Figure 2 Enlarged structural diagram at B in the middle.

[0022] Reference numerals:

[0023] 101. Biomass steam boiler body; 102. Air outlet pipe; 103. Placement plate; 104. Water tank; 105. Connecting pipe; 106. Purification chamber; 107. Air inlet pipe; 2. Purification assembly; 201. Mounting plate; 202. Filter sponge plate; 203. Air purification plate; 301. Water outlet pipe; 302. Valve; 303. Baffle; 304. Support block; 305. Thermometer; 306. Sealing ring; 401. Threaded turntable. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model more clear, the embodiment of the utility model is further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments of the present invention.

[0026] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed installation, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] See attached Figure 1-4 As shown, an embodiment of the utility model is a biomass steam boiler with a waste heat recovery device, including a biomass steam boiler body 101, the top of the biomass steam boiler body 101 is connected to an exhaust pipe 102, a placement plate 103 is fixedly installed on the right side of the biomass steam boiler body 101, and a water tank 104 is detachably connected to the right side of the biomass steam boiler body 101 by bolts, the bottom of the water tank 104 is in contact with the top of the placement plate 103, and the top of the water tank 104 is connected to a connecting pipe 105.

[0028] A purification chamber 106 is fixedly installed on the top of the right side of the biomass steam boiler body 101. The bottom of the air outlet pipe 102 penetrates into the interior of the purification chamber 106 and is connected to the purification chamber 106. The bottom of the purification chamber 106 is connected to an air inlet pipe 107. The bottom of the air inlet pipe 107 penetrates into the interior of the water tank 104. A purification component 2 for purifying exhaust gas is arranged inside the purification chamber 106. The bottom end of the air inlet pipe 107 is in contact with the interior of the connecting pipe 105.

[0029] When in use, pour normal temperature water into the water tank 104, start the biomass steam boiler body 101 to work, and the high temperature flue gas generated when the biomass steam boiler body 101 is burned enters the outlet pipe 102. The outlet pipe 102 can transport the high temperature flue gas to the inside of the purification chamber 106. The purification component 2 inside the purification chamber 106 can filter impurities in the high temperature flue gas. The filtered high temperature flue gas will enter the water tank 104 to heat the normal temperature water. The heated normal temperature water can be reused. When the insulation effect of the water outlet pipe 301 is not good, the outlet pipe 102 can be wrapped with insulation cotton to keep it warm.

[0030] The purification component 2 includes a mounting plate 201, on the left side of which a filter sponge plate 202 and an air purification plate 203 are fixedly installed in sequence from top to bottom. The filter sponge plate 202 and the air purification plate 203 are both located inside the purification bin 106, and the four corners on the right side of the purification bin 106 are detachably connected to the purification bin 106 by bolts; through the arrangement of the filter sponge plate 202 and the air purification plate 203, the high-temperature flue gas impurities and harmful particles in the exhaust pipe 102 can be filtered, thereby preventing the high-temperature flue gas from polluting the environment, and also preventing harmful particles in the high-temperature flue gas from entering the heated medium.

[0031] The bottom of the water tank 104 is connected to a water outlet pipe 301, and the bottom of the water outlet pipe 301 passes through the bottom of the placement plate 103. The surface of the water outlet pipe 301 is connected to a valve 302. When the room temperature water in the water tank 104 is heated, the valve 302 can be opened to allow the hot water in the water tank 104 to be discharged through the water outlet pipe 301.

[0032] A baffle 303 is provided on the right side of the water tank 104, and the left side of the baffle 303 is in contact with the right side of the water tank 104. The four corners of the right side of the water tank 104 are detachably connected to the water tank 104 by bolts. Normal temperature water will produce limescale during long-term combustion, and the limescale will remain on the inner wall of the water tank 104. At this time, the operator can regularly shut down the biomass steam boiler body 101, and then disassemble the baffle 303 to clean the limescale in the water tank 104.

[0033] A support block 304 is fixedly installed on the top of the placement plate 103, and a thermometer 305 is fixedly installed inside the support block 304. The left side of the thermometer 305 penetrates into the inside of the water tank 104. The temperature of the room-temperature water in the water tank 104 can be known at all times by observing the scale on the thermometer 305. When the room-temperature water is heated to the required temperature, the valve 302 can be opened to release the water.

[0034] A sealing ring 306 is fixedly installed on the right side of the water tank 104 . The inside of the sealing ring 306 contacts the surface of the thermometer 305 , which can prevent the normal temperature water in the water tank 104 from boiling and overflowing from the gap between the water tank 104 and the thermometer 305 .

[0035] The interior of the connecting pipe 105 is concave, and the interior of the air intake pipe 107 is convex. The top of the connecting pipe 105 surface and the bottom of the air intake pipe 107 surface are both threaded. The surface of the connecting pipe 105 is threadedly connected with a threaded turntable 401. The threaded turntable 401 is used to splice the connecting pipe 105 and the air intake pipe 107. When rust or corrosion appears in the water tank 104, the threaded turntable 401 can be rotated so that it is all on the surface of the air intake pipe 107, the bolts fixing the water tank 104 can be removed, and the water tank 104 can be disassembled for replacement.

[0036] When the embodiment of the utility model is used, first pour normal temperature water into the water tank 104, start the biomass steam boiler body 101 to work, and the high temperature flue gas generated when the biomass steam boiler body 101 is burned enters the exhaust pipe 102, and the exhaust pipe 102 can transport the high temperature flue gas to the inside of the purification chamber 106. At this time, impurities in the high temperature flue gas will be filtered through the filter sponge plate and the air purification plate, and the filtered high temperature flue gas will enter the water tank 104 to heat the normal temperature water, observe the scale on the thermometer, and when the normal temperature water is heated to the required temperature, open the valve 302 to let the hot water in the water tank 104 be discharged through the outlet pipe 301. Normal temperature water will produce water alkali when it is burned for a long time, and the water alkali will remain on the inner wall of the water tank 104. The biomass steam boiler body 101 can be shut down regularly, and the baffle 303 can be disassembled to clean the water alkali in the water tank 104.

[0037] The above shows and describes the basic principles of the present invention. The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only intended to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the protection scope of the present invention.

Claims

1. A biomass steam boiler with a waste heat recovery device, comprising a biomass steam boiler body (101), characterized in that: The top of the biomass steam boiler body (101) is connected to an air outlet pipe (102); a placement plate (103) is fixedly installed on the right side of the biomass steam boiler body (101); a water tank (104) is detachably connected to the right side of the biomass steam boiler body (101) via bolts; the bottom of the water tank (104) is in contact with the top of the placement plate (103); the top of the water tank (104) is connected to a connecting pipe (105); and the right side of the biomass steam boiler body (101) is connected to a water tank (104) which is detachably connected to the water tank (104) via bolts. A purification chamber (106) is fixedly mounted on the top of the purification chamber (106); the bottom of the air outlet pipe (102) penetrates into the interior of the purification chamber (106) and is in communication with the purification chamber (106); the bottom of the purification chamber (106) is in communication with an air intake pipe (107); the bottom of the air intake pipe (107) penetrates into the interior of the water tank (104); a purification component (2) for purifying exhaust gas is arranged inside the purification chamber (106); and the bottom end of the air intake pipe (107) is in contact with the interior of the connecting pipe (105).

2. The biomass steam boiler with a waste heat recovery device according to claim 1, characterized in that: The purification component (2) comprises a mounting plate (201), a filtering sponge plate (202) and an air purification plate (203) being fixedly mounted on the left side of the mounting plate (201) in order from top to bottom, the filtering sponge plate (202) and the air purification plate (203) being both located inside the purification chamber (106), and the four corners on the right side of the purification chamber (106) being detachably connected to the purification chamber (106) via bolts.

3. The biomass steam boiler with a waste heat recovery device according to claim 1, characterized in that: The bottom of the water tank (104) is connected to a water outlet pipe (301), the bottom of the water outlet pipe (301) penetrates to the bottom of the placement plate (103), and the surface of the water outlet pipe (301) is connected to a valve (302).

4. The biomass steam boiler with a waste heat recovery device according to claim 3 is characterized in that: A baffle (303) is provided on the right side of the water tank (104); the left side of the baffle (303) contacts the right side of the water tank (104); and the four corners of the right side of the water tank (104) are detachably connected to the water tank (104) via bolts.

5. The biomass steam boiler with a waste heat recovery device according to claim 4, characterized in that: A support block (304) is fixedly mounted on the top of the placement plate (103), a thermometer (305) is fixedly mounted inside the support block (304), and the left side of the thermometer (305) penetrates into the interior of the water tank (104).

6. The biomass steam boiler with a waste heat recovery device according to claim 5, characterized in that: A sealing ring (306) is fixedly mounted on the right side of the water tank (104), and the interior of the sealing ring (306) is in contact with the surface of the thermometer (305).

7. A biomass steam boiler with a waste heat recovery device according to any one of claims 1 to 6, characterized in that: The interior of the connecting pipe (105) is concave, the interior of the air intake pipe (107) is convex, the top surface of the connecting pipe (105) and the bottom surface of the air intake pipe (107) are both threaded, the surface of the connecting pipe (105) is threadedly connected to a threaded turntable (401), and the threaded turntable (401) is used to splice the connecting pipe (105) and the air intake pipe (107).

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