Biomass boiler with low carbon emission

Abstract

The utility model discloses a biomass boiler with low carbon emission, which comprises a boiler body, a smoke discharge channel communicated with a combustion chamber is arranged in the boiler body, a smoke discharge pipe communicated with the smoke discharge channel is arranged at one end of the boiler body, the other end of the smoke discharge pipe is bent, a pipeline communicated with a salt discharge pipe is vertically arranged at the bent position of the smoke discharge pipe, and the salt discharge pipe is communicated with a salt discharge pipe. The opening end face of the pipe body is in threaded connection with a pipe cover, a shaft hole is formed in the center of the pipe cover, a liquid injection pipe is arranged in the shaft hole, one end of the liquid injection pipe penetrates through the smoke exhaust channel and extends into the combustion chamber, and the other end of the liquid injection pipe extends to the outside and is movably provided with a connecting piece. According to the utility model, the structure is simple, a reducing agent sprayed by the atomizing spray head can fully cover the smoke exhaust channel and the combustion chamber, the liquid injection pipe can rotate, the covering uniformity is further improved, the sufficiency of subsequent reduction is ensured, and after the oil injection pipe is pulled upwards, the atomizing spray head can be scraped, and the probability of blockage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of biomass boiler, specifically relates to a low carbon emission's biomass boiler. BACKGROUND

[0002] Biomass boiler produces heat or electricity through burning biomass fuel (such as agricultural and forestry waste, municipal waste, etc.), has the advantages of renewable resources, near-zero carbon dioxide emissions, etc. However, the pollutants such as nitrogen oxides (NOx) and particulate matter generated during the combustion process are still an environmental problem that cannot be ignored.

[0003] At present, in order to meet the low-carbon environmental protection effect, reducing agent is generally injected into the combustion chamber of the furnace body, the reducing agent reacts with NOx to generate nitrogen and water, but the current reducing agent is not evenly distributed after being sprayed, which causes poor reduction reaction effect and affects environmental protection quality. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a low carbon emission's biomass boiler, which can uniformly spray reducing agent to ensure the quality of reduction and solve the problems in the above background technology.

[0005] The utility model is realized through the following technical scheme: a low carbon emission's biomass boiler, including the furnace body, the inside of furnace body is equipped with the smoke exhaust passage that communicates with the combustion chamber, the one end of furnace body is installed with the smoke exhaust pipe that communicates with the smoke exhaust passage, the other end of smoke exhaust pipe is bently arranged, the bend of smoke exhaust pipe is installed with the pipeline that communicates with the salt discharge pipe perpendicularly, the opening end face of pipe body is connected with the pipe cover on screw thread, the center of pipe cover is equipped with the axle hole, the inside of axle hole is equipped with the liquid injection pipe, the one end of liquid injection pipe extends to the combustion chamber through the smoke exhaust passage, the other end extends to the outside, and the connecting piece is movably installed.

[0006] As a preferred technical scheme, a plurality of grooves are arranged on the outer wall surface of the liquid injection pipe, a connecting hole communicating with the inner cavity of the pipeline is arranged on the inner wall surface of each groove, an atomizing nozzle is arranged in each groove, a connecting pipe of the atomizing nozzle is screwed into the screw hole, and the outer side end surface of the atomizing nozzle is arranged in an arc shape and flush with the outer wall surface of the liquid injection pipe.

[0007] As a preferred technical scheme, a motor is installed on the outer ring surface of the pipe cover, a driving wheel is installed on the rotating shaft of the motor, and the outer ring surface of the driving wheel is in frictional contact with the outer wall surface of the liquid injection pipe.

[0008] As a preferred technical scheme, the connecting piece comprises a connecting cylinder and a liquid inlet pipe, the connecting cylinder is sleeved on one end of the liquid injection pipe, the liquid inlet pipe is installed on the end face of the connecting cylinder and is arranged in communication with the liquid injection pipe, an annular positioning groove is arranged on the inner wall face of the connecting cylinder, and a positioning ring is installed on the outer wall face of the liquid injection pipe opposite to the positioning groove and movably arranged in the positioning groove.

[0009] As a preferred technical scheme, the connecting piece comprises a connecting cylinder and a liquid inlet pipe, the connecting cylinder is sleeved on one end of the liquid injection pipe, the liquid inlet pipe is installed on the end face of the connecting cylinder and is arranged in communication with the liquid injection pipe, an annular positioning groove is arranged on the inner wall face of the connecting cylinder, and a positioning ring is installed on the outer wall face of the liquid injection pipe opposite to the positioning groove and movably arranged in the positioning groove.

[0010] As a preferred technical scheme, the connecting piece comprises a connecting cylinder and a liquid inlet pipe, the connecting cylinder is sleeved on one end of the liquid injection pipe, the liquid inlet pipe is installed on the end face of the connecting cylinder and is arranged in communication with the liquid injection pipe, an annular positioning groove is arranged on the inner wall face of the connecting cylinder, and a positioning ring is installed on the outer wall face of the liquid injection pipe opposite to the positioning groove and movably arranged in the positioning groove.

[0011] The beneficial effects of the utility model are: the utility model has simple structure, the liquid injection pipe can be inserted into the combustion chamber along the smoke exhaust channel, the reducing agent sprayed by the atomizing nozzle can fully cover the smoke exhaust channel and the combustion chamber, the liquid injection pipe can rotate, the uniformity of coverage is further improved, the sufficiency of subsequent reduction is ensured, and the atomizing nozzle can be scraped after the oil injection pipe is pulled up, so that the probability of blockage is reduced. ACCURACY

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0013] Figure 1 It is the overall structure schematic view of the utility model;

[0014] Figure 2 It is the side view of the utility model;

[0015] Figure 3 It is the atomizing nozzle distribution diagram of the utility model;

[0016] Figure 4 It is the structure schematic view of the liquid injection pipe of the utility model.

[0017] Among them, 1, furnace body;2, smoke exhaust pipe;3, pipeline;4, pipe cover;5, liquid injection pipe;6, limit ring;7, connecting cylinder;8, liquid inlet pipe;9, motor;10, driving wheel;11, atomizing nozzle;12, groove;13, connecting hole. CONCRETE IMPLEMENTATION

[0018] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are intended to explain the present application, and should not be understood as limiting the present application.

[0019] All features disclosed in this specification, or all steps of any methods or processes disclosed, may be combined in any combination, except combinations where at least some features and / or steps are mutually exclusive.

[0020] Any feature disclosed in this specification, unless stated otherwise, can be replaced by alternative features or equivalents having the same or a similar effect. That is, unless stated otherwise, each feature is one example only of a range of equivalent or similar features.

[0021] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 The low-carbon biomass boiler of the present application comprises a furnace body 1, the inside of the furnace body 1 is provided with a smoke exhaust passage communicating with a combustion chamber, one end of the furnace body 1 is provided with a smoke exhaust pipe 2 communicating with the smoke exhaust passage, the other end of the smoke exhaust pipe 2 is bent, a pipe 3 communicating with the smoke exhaust pipe is vertically installed at the bent part of the smoke exhaust pipe 2, a pipe cover 4 is threadedly connected to the open end face of the pipe body, an axle hole is provided at the center of the pipe cover 4, a liquid injection pipe 5 is provided inside the axle hole, one end of the liquid injection pipe 5 extends into the combustion chamber through the smoke exhaust passage, the other end of the liquid injection pipe 5 extends to the outside, and a connecting piece is movably installed;

[0022] The other end of the liquid injection pipe is provided with a desulfurization system to increase the treatment effect on the flue gas.

[0023] In this embodiment, a plurality of grooves 12 are provided on the outer wall surface of the liquid injection pipe 5, a connecting hole 13 communicating with the inner cavity of the pipe 3 is provided on the inner wall surface of each groove 12, an atomizing nozzle 11 is provided in each groove 12, the connecting pipe of the atomizing nozzle 11 is threadedly connected to the screw hole, the outer side end face of the atomizing nozzle 11 is arc-shaped, and is flush with the outer wall surface of the liquid injection pipe 5, so that the liquid injection pipe can be smoothly pulled out of the axle hole.

[0024] In this embodiment, a motor 9 is installed on the outer ring surface of the pipe cover 4, a driving wheel 10 is installed on the rotating shaft of the motor 9, and the outer ring surface of the driving wheel 10 is in frictional contact with the outer wall surface of the liquid injection pipe 5.

[0025] In the embodiment, the connecting piece comprises a connecting cylinder 7 and a liquid inlet pipe 8, the connecting cylinder 7 is sleeved on one end of the liquid injection pipe 5, the liquid inlet pipe 8 is installed on the end face of the connecting cylinder 7 and is arranged in communication with the liquid injection pipe 5, an annular positioning groove is arranged on the inner circumferential surface of the connecting cylinder 7, and a positioning ring is arranged on the outer wall surface of the liquid injection pipe 5 and is arranged in the positioning groove in a movable manner;

[0026] The liquid inlet pipe is provided with a hose, and the other end of the hose extends into the liquid storage groove and is connected with the pump body, so that the reducing agent can be injected into the liquid injection pipe along the hose and the liquid inlet pipe.

[0027] When the motor rotates, the liquid injection pipe is driven to rotate, and since the liquid injection pipe is movably connected with the connecting cylinder, the liquid injection pipe cannot drive the connecting cylinder to rotate, so that the hose is prevented from being twisted.

[0028] In the embodiment, a rubber ring is arranged on the inner wall surface of the shaft hole and is arranged in contact with the outer wall surface of the liquid injection pipe 5, so that the sealing between the through hole and the liquid injection pipe 5 is improved, and when the outer wall of the liquid injection pipe needs to be cleaned, the liquid injection pipe can be lifted upward, the outer wall of the liquid injection pipe can be attached to the rubber ring in the lifting process, so that the dust remaining on the atomizing nozzle can be quickly scraped off, so as to reduce the probability of being blocked, and after cleaning, the liquid injection pipe can be inserted into the smoke discharge channel and the combustion chamber again, so as to facilitate subsequent use.

[0029] In the embodiment, a limiting ring 6 is arranged on the exposed part of the liquid injection pipe 5, and the side surface of the limiting ring 6 is arranged in contact with the pipe cover 4, so that the distance of the liquid injection pipe from being lowered is limited, and the liquid injection pipe is prevented from being inserted into the smoke discharge channel and being unable to be lifted subsequently.

[0030] In use, the external reducing agent (ammonia water) can be injected into the liquid injection pipe and sprayed from the atomizing nozzle, and in the spraying process, the motor can be started, the starting of the motor drives the driving wheel, the driving wheel drives the rotation of the liquid injection pipe through friction, so that the atomizing reducing agent sprayed from the liquid injection pipe can be sprayed while rotating, the uniformity of the coverage of the reducing agent is improved, and the sufficiency of the subsequent reduction is ensured.

[0031] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any change or replacement without creative labor should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be limited by the protection scope defined in the claims.

Claims

1. A low carbon emission biomass boiler characterized by: The utility model provides a salt injection device for salt furnace, including furnace body (1), the inside of furnace body (1) is equipped with with combustion chamber intercommunication's flue gas discharge channel, and one end of furnace body (1) is equipped with with flue gas discharge channel intercommunication's flue gas discharge pipe (2), and the other end of flue gas discharge pipe (2) is bent and is arranged, and the bending of flue gas discharge pipe (2) is vertically equipped with with salt discharge pipe intercommunication's pipeline (3), and the open end face of pipe body is equipped with with the pipe cover (4) of screwing, and the center of pipe cover (4) is equipped with with the axle hole of setting, and the inside of axle hole is equipped with with the liquid injection pipe (5) of setting, and one end of liquid injection pipe (5) extends to combustion chamber in flue gas discharge channel, and the other end extends to outside, and is equipped with with the connecting piece of movable installation.

2. The low carbon emission biomass boiler according to claim 1, characterized in that: The outer wall surface of liquid injection pipe (5) is equipped with with multiple recesses (12), and the inner wall surface of recess (12) is equipped with with the connecting hole (13) of intercommunication with the inner chamber of pipeline (3), and recess (12) is equipped with with the atomizing nozzle (11) in, and the connecting pipe of atomizing nozzle (11) is all screwed in screw hole, and the outer side end surface of atomizing nozzle (11) is all arc structure and is arranged flush with the outer wall surface of liquid injection pipe (5).

3. The low carbon emission biomass boiler according to claim 1, wherein: The outer circle surface of pipe cover (4) is equipped with with motor (9), and the rotating shaft of motor (9) is equipped with with drive wheel (10), and the outer circle surface of drive wheel (10) is arranged in friction contact with the outer wall surface of liquid injection pipe (5).

4. The low carbon emission biomass boiler according to claim 1, wherein: The connecting piece includes connecting cylinder (7) and liquid inlet pipe (8), connecting cylinder (7) is sleeved on one end of liquid injection pipe (5), liquid inlet pipe (8) is installed on the end surface of connecting cylinder (7) and is arranged in communication with liquid injection pipe (5), and the inner circle surface of connecting cylinder (7) is equipped with with the annular structure's positioning groove, and the outer wall surface of liquid injection pipe (5) is equipped with with the positioning ring of being installed opposite the positioning groove, and the positioning ring is movably arranged in the positioning groove.

5. The low carbon emission biomass boiler according to claim 1, wherein: The inner wall surface of axle hole is equipped with with rubber ring, and rubber ring is arranged in contact with the outer wall surface of liquid injection pipe (5).

6. The low carbon emission biomass boiler according to claim 1, wherein: The exposed section of liquid injection pipe (5) is equipped with with limiting ring (6), and the side surface of limiting ring (6) is arranged in contact with pipe cover (4).

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