CN210179625U

CN210179625U - Biogas combustion device for rural biogas power generation

Info

Publication number: CN210179625U
Application number: CN201921029620.2U
Authority: CN
Inventors: Bing Han; 韩冰; Ying Qi; 綦莹; Xianhao Meng; 孟宪淏; Jinwei Li; 李金伟; Jialei Lin; 林嘉磊
Original assignee: Zhongkezhi Water Environment Engineering Tianjin Co ltd
Current assignee: Zhongkezhi Water Environment Engineering Tianjin Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-03-24
Anticipated expiration: 2029-07-04

Abstract

The utility model relates to the technical field of biogas power generation, and discloses a biogas combustion device for rural biogas power generation, which comprises a body, a biogas inlet pipeline and an air pipeline; the marsh gas admission line sets up the left end at the body, marsh gas admission line's right-hand member stretches into the inside of body and the intercommunication has the hybrid chamber, the bottom intercommunication decurrent air duct of hybrid chamber, the outside of body is stretched out to air duct's end, the inside of hybrid chamber is provided with vertical (mixing) shaft, the top of (mixing) shaft is rotated and is connected with the agitator motor who fixes at the outer top of hybrid chamber, the right-hand member intercommunication of hybrid chamber has a set of horizontal gas transmission pipeline, gas transmission pipeline's upside is provided with a set of fan, gas transmission pipeline's right-hand member intercommunication has the combustor, the right-hand member of combustor is provided with the compression pipeline, the right-hand member of compression pipeline is connected with the generator. The utility model has the advantages that: the biogas combustion efficiency is extremely high, the structure is simple, and the energy utilization rate is high.

Description

Biogas combustion device for rural biogas power generation

Technical Field

The utility model relates to the technical field of biogas power generation, in particular to a biogas combustion device for rural biogas power generation.

Background

With the increasing demand of society for energy, the development of various new energy sources becomes a hot point of research at present, and the biogas power generation is most widely applied at present, wherein the biogas power generation is to generate power by using biogas as fuel, a mixture of air and biogas is compressed in a cylinder of a biogas generator set, the mixture is combusted by a spark plug, power is obtained by the reciprocating motion of the spark plug, and then the power is connected with a generator to generate power.

Chinese patent (publication number: CN 208748037U, publication date: 2019.04.16) discloses a novel biogas power generation device, which comprises a biogas pipeline, wherein a gas mixing device is installed at the right end of the biogas pipeline, a gas guide pipe is installed on the right side of the gas mixing device, a power generation unit is installed at the right end of the gas guide pipe, an exhaust pipe is installed at the bottom of the power generation unit, a bent pipe is installed at the left end of the exhaust pipe, and the novel biogas power generation device can absorb moisture and sulfide in biogas through a dryer and a desulfurizer, so that the utilization rate of the biogas is improved. However, the device has a complex structure and high manufacturing cost, and the mixing of the biogas and the air is not sufficient enough, so that the subsequent combustion is influenced, and the full utilization of the biogas is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rural biogas is marsh gas burner for electricity generation to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a biogas combustion device for rural biogas power generation comprises a body, a biogas inlet pipeline and an air pipeline; the biogas inlet pipe is arranged at the left end of the body, the right end of the biogas inlet pipe extends into the body and is communicated with a mixing chamber, the bottom end of the mixing chamber is communicated with a downward air pipe, the tail end of the air pipe extends out of the body, a vertical stirring shaft is arranged inside the mixing chamber, the top end of the stirring shaft is rotatably connected with a stirring motor fixed at the top outside the mixing chamber, biogas and air are input into the mixing chamber, then the stirring motor is started to drive the stirring shaft to rotate, and further the biogas and the air are sufficiently mixed to facilitate subsequent combustion. The right-hand member intercommunication of hybrid chamber has a set of horizontal gas transmission pipeline, and the upside of gas transmission pipeline is provided with a set of fan, accelerates the gas of mixing in the hybrid chamber to enter into the gas transmission pipeline through the fan.

As a further aspect of the present invention: the right-hand member intercommunication of gas transmission pipeline has the combustor, and the right-hand member of combustor is provided with the compression pipeline, and heat output channel communicates on the compression pipeline, the right-hand member of compression pipeline is connected with the generator, and the bottom fixed mounting of generator is on the mount pad. The steam is input to a generator, and power generation is performed.

As a further aspect of the present invention: be provided with the filter that is arranged in the filtered air impurity on the air conduit, be provided with air composition detector on the right side air conduit of filter, air composition detector's setting is used for detecting the composition of waiting to enter into the inside air of mixing chamber, prevents to contain the gas that is unfavorable for the marsh gas burning and sneaks into in the mixing chamber.

As a further aspect of the present invention: the upper surface and the lower surface of the burner are fixedly arranged in the body through the support, and the burner comprises a control device, a mixed gas inlet, a switch, a heat output channel and a combustion cavity; the left side at the burning chamber is seted up in the mist import, gas transmission pipeline's right-hand member communicates on the mist import, the front side in burning chamber is provided with controlling means, be provided with the switch that the control combustor opened and stops on controlling means's the right side burning chamber, the right-hand member intercommunication in burning chamber has heat output channel, gas input to burning chamber through after will mixing, then through switch start controlling means, and then make the mist burn in the inside in burning chamber, the hot steam that the burning produced passes through heat output channel and exports backward.

As a further aspect of the present invention: the compression pipe is provided in a tubular structure having a diameter that is sequentially increased, so that the steam in the combustor flows backward in order to reduce the pressure inside the compression pipe.

As a further aspect of the present invention: the right side of gas transmission pipeline is provided with a set of mist concentration detector, and the bottom of mist concentration detector has the power that is fixed in the body bottom through wire electric connection, drives mist concentration detector through the power and carries out work, and mist concentration detector is used for detecting the gas concentration after mixing whether accords with the optimal condition of burning.

Compared with the prior art, the beneficial effects of the utility model are that: by arranging the mixing cavity, the biogas to be combusted is fully mixed with air, so that the biogas can be fully combusted, and the combustion efficiency of the biogas is improved; the mixed gas concentration detector is driven to work by the power supply and is used for detecting whether the concentration of the mixed gas meets the optimal combustion state or not; the air composition detector is arranged for detecting the composition of air to be fed into the mixing cavity, so that gas which is not beneficial to methane combustion is prevented from being mixed into the mixing cavity. The utility model has the advantages that: the biogas has extremely high combustion efficiency and high energy utilization rate.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of a biogas combustion device for rural biogas power generation.

Fig. 2 is a schematic structural diagram of a burner in a biogas combustion device for rural biogas power generation.

Fig. 3 is a schematic structural diagram of a second embodiment of a biogas combustion device for rural biogas power generation.

Wherein: the biogas mixing device comprises a body 10, a biogas inlet pipeline 11, a mixing chamber 12, a stirring shaft 13, a stirring motor 14, an air pipeline 15, an air composition detector 16, a filter 17, a gas transmission pipeline 18, a fan 19, a combustor 20, a compression pipeline 21, a generator 22, a mounting seat 23, a mixed gas concentration detector 24, a power supply 25, a control device 26, a mixed gas inlet 27, a switch 28, a heat output channel 29 and a combustion chamber 30.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Example one

Referring to fig. 1-2, a biogas combustion device for rural biogas power generation comprises a body 10, a biogas inlet pipe 11 and an air pipe 15; biogas inlet pipe 11 sets up the left end at body 10, biogas inlet pipe 11's right-hand member stretches into the inside of body 10 and the intercommunication has mixing chamber 12, the bottom of mixing chamber 12 communicates decurrent air duct 15, the outside of body 10 is stretched out to air duct 15's end, be provided with the filter 17 that is arranged in the filtered air impurity on the air duct 15, be provided with air composition detector 16 on filter 17's the right side air duct 15, air composition detector 16's setting is used for detecting the composition that waits to enter into mixing chamber 12 inside air, prevent to contain the gas that is unfavorable for the marsh gas burning and sneak into mixing chamber 12. The inside of mixing chamber 12 is provided with vertical (mixing) shaft 13, and the top of (mixing) shaft 13 rotates and is connected with the agitator motor 14 of fixing at the outer top of mixing chamber 12, through with marsh gas and air through inputing into mixing chamber 12, then starts agitator motor 14 and drives (mixing) shaft 13 and rotate, and then carries out abundant mixture with marsh gas and air and be convenient for subsequent burning. The right end of the mixing chamber 12 is communicated with a group of transverse gas transmission pipelines 18, the upper side of the gas transmission pipelines 18 is provided with a group of fans 19, and the fans 19 accelerate the gas mixed in the mixing chamber 12 to enter the gas transmission pipelines 18.

The right end of the gas transmission pipeline 18 is communicated with a burner 20, the upper surface and the lower surface of the burner 20 are fixedly arranged in the body 10 through a support, and the burner 20 comprises a control device 26, a mixed gas inlet 27, a switch 28, a heat output channel 29 and a combustion chamber 30; the mixed gas import 27 sets up the left side at combustion chamber 30, the right-hand member of gas transmission pipeline 18 communicates on mixed gas import 27, the front side of combustion chamber 30 is provided with controlling means 26, be provided with the switch 28 that control combustor 20 opened and shut on controlling means 26's the right side combustion chamber 30, the right-hand member intercommunication of combustion chamber 30 has heat output channel 29, through the gas input after will mixing to combustion chamber 30 in, then start controlling means 26 through switch 28, and then make the mixed gas burn in combustion chamber 30's inside, the hot steam that the burning produced passes through heat output channel 29 and exports backward. The right end of the burner 20 is provided with a compression pipe 21, a heat output passage 29 is connected to the compression pipe 21, and the compression pipe 21 is provided in a tubular structure having a diameter which is sequentially increased so that the steam in the burner 20 flows backward in order to reduce the pressure inside the compression pipe 21. The right end of the compression pipeline 21 is connected with a generator 22, and the bottom of the generator 22 is fixedly installed on the installation seat 23. The steam is input to the generator 22, and power generation is performed.

The utility model discloses a theory of operation is: firstly, biogas and air are respectively input into a mixing cavity 12 through a biogas inlet pipeline 11 and an air pipeline 15, then a stirring motor 14 is started to drive a stirring shaft 13 to rotate, so that the biogas and the air in the mixing cavity 12 are mixed, then the mixed gas enters a combustor 20 through a gas pipeline 18 for sufficient combustion, and steam generated by combustion enters a generator 22 through a compression pipeline 21 for power generation.

Example two

Referring to fig. 3, on the basis of the first embodiment, a group of mixed gas concentration detectors 24 is disposed on the right side of the gas transmission pipeline 18, the bottom ends of the mixed gas concentration detectors 24 are electrically connected to a power supply 25 fixed to the bottom of the body 10 through a lead, the mixed gas concentration detectors 24 are driven to operate through the power supply 25, and the mixed gas concentration detectors 24 are used for detecting whether the mixed gas concentration meets the optimal combustion state.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A biogas combustion device for rural biogas power generation comprises a body (10), a biogas inlet pipeline (11) and an air pipeline (15); the biogas inlet pipeline (11) is arranged at the left end of the body (10), and is characterized in that the right end of the biogas inlet pipeline (11) extends into the body (10) and is communicated with a mixing chamber (12), the bottom end of the mixing chamber (12) is communicated with a downward air pipeline (15), the tail end of the air pipeline (15) extends out of the body (10), a vertical stirring shaft (13) is arranged inside the mixing chamber (12), the top end of the stirring shaft (13) is rotatably connected with a stirring motor (14) fixed at the outer top of the mixing chamber (12), the right end of the mixing chamber (12) is communicated with a group of transverse gas transmission pipelines (18), the upper side of the gas transmission pipelines (18) is provided with a group of fans (19), the right end of the gas transmission pipelines (18) is communicated with a combustor (20), the right end of the combustor (20) is provided with a compression pipeline (21), and the right end of the compression pipeline (21) is connected with a generator, the bottom of the generator (22) is fixedly arranged on the mounting seat (23).

2. The biogas combustion device for rural biogas power generation according to claim 1, wherein the air pipeline (15) is provided with a filter (17) for filtering impurities in the air.

3. The biogas combustion device for rural biogas power generation according to claim 2, wherein an air component detector (16) is arranged on the right air pipeline (15) of the filter (17).

4. The biogas combustion device for rural biogas power generation according to claim 3, wherein the upper and lower surfaces of the burner (20) are fixedly installed inside the body (10) through a support, the burner (20) comprises a control device (26), a mixed gas inlet (27), a switch (28), a heat output channel (29) and a combustion chamber (30); the mixed gas inlet (27) is arranged on the left side of the combustion chamber (30), the right end of the gas transmission pipeline (18) is communicated to the mixed gas inlet (27), the front side of the combustion chamber (30) is provided with a control device (26), a switch (28) for controlling the start and stop of the combustor (20) is arranged on the right side combustion chamber (30) of the control device (26), and the right end of the combustion chamber (30) is communicated with a heat output channel (29).

5. The biogas combustion device for rural biogas power generation according to claim 4, wherein the compression pipe (21) is provided in a tubular structure with successively increasing diameter.

6. The biogas combustion device for rural biogas power generation according to any one of claims 1 to 5, wherein a group of mixed gas concentration detectors (24) is arranged on the right side of the gas transmission pipeline (18), and the bottom ends of the mixed gas concentration detectors (24) are electrically connected with a power supply (25) fixed on the bottom in the body (10) through wires.