CN216588863U

CN216588863U - Waste heat recycling device of biogas generator

Info

Publication number: CN216588863U
Application number: CN202122275427.0U
Authority: CN
Inventors: 马一文
Original assignee: Yangzhou Yingtai Machinery Co ltd
Current assignee: Yangzhou Yingtai Machinery Co ltd
Priority date: 2021-09-18
Filing date: 2021-09-18
Publication date: 2022-05-24
Anticipated expiration: 2031-09-18

Abstract

The utility model discloses a waste heat recycling device of a biogas generator. Relates to a biogas generator, in particular to an improvement of a waste heat recovery device of the biogas generator. Provides a waste heat recycling device of a biogas generator, which utilizes waste heat of tail gas to heat biogas. Including the exhaust gas conduit, the exhaust gas conduit communicates with the gas pipeline, the gas pipeline is double-deck pipeline, be equipped with the cavity in the gas pipeline, the exhaust gas conduit with the cavity intercommunication, be equipped with a plurality of air flues in the cavity, the air flue laminate in inlayer pipeline in the double-deck pipeline, the exhaust gas conduit with the air flue intercommunication. The waste heat of the waste gas directly heats the methane in the gas supply pipeline, so that the temperature of the methane is increased, and the methane is easier to ignite in the subsequent ignition.

Description

Waste heat recycling device of biogas generator

Technical Field

The utility model relates to a biogas generator, in particular to an improvement of a biogas generator waste heat recovery device.

Background

The generator set is a complete set of mechanical equipment for converting energy in other forms into electric energy, and in China, the single-fuel methane generator set completely using methane and the dual-fuel methane-diesel generator set partially using methane exist, and the single-fuel methane generator set has the working principle and advantages that: the mixture of 'air methane' is compressed in a cylinder, is combusted by a spark plug, obtains power through the reciprocating motion of a piston, and is then connected with a generator to generate electricity. When the biogas is ignited, the biogas is low in temperature, so that incomplete combustion is easy to occur in the ignition process, and the tail gas contains carbon monoxide and the like, so that how to effectively preheat the biogas is the problem to be solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a waste heat recycling device of a biogas generator, which utilizes waste heat of tail gas to heat biogas.

The utility model is realized by adopting the following technical scheme: the waste heat recycling device of the biogas generator comprises a waste gas pipeline, wherein the waste gas pipeline is communicated with an air supply pipeline, the air supply pipeline is a double-layer pipeline, a cavity is arranged in the air supply pipeline, the waste gas pipeline is communicated with the cavity, a plurality of air passages are arranged in the cavity, the air passages are attached to inner-layer pipelines in the double-layer pipeline, and the waste gas pipeline is communicated with the air passages.

The outer wall of the air passage is in a circular arch shape, the air passage is fixed on the outer wall of the inner layer pipeline, and the air passage is distributed along the length direction of the air supply pipeline and is uniformly distributed on the outer wall of the inner layer pipeline.

The outer layer pipeline of the double-layer pipeline is provided with an access port, and the access port is communicated with the air passage and extends out of the outer layer pipeline.

The outer layer pipeline of the double-layer pipeline is provided with a connecting outlet, and the connecting outlet is communicated with the air passage and is respectively arranged at two ends of the air passage.

And a pressurizing air pump is arranged on the waste gas pipeline and pushes waste gas to flow in the waste gas pipeline.

Compared with the prior art, the biogas in the gas supply pipeline is directly heated by the waste heat of the waste gas in the waste gas conveying process, so that the temperature of the biogas is increased, and the biogas is easier to ignite during subsequent ignition, so that the biogas is more fully combusted, the condition of insufficient combustion is avoided, and the emission of carbon monoxide is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view showing an internal structure of an air supply duct according to the present invention;

FIG. 3 is a schematic view showing an inner sectional structure of an air supply duct according to the present invention;

in the figure: 1. an exhaust gas conduit; 2. an air supply duct; 3. an outer pipe; 4. an inner layer pipe; 5. an airway; 6. an access port; 7. a receiving port; 8. a pressurized air pump; 9. a cavity.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

As shown in fig. 1-3, the waste heat recycling device for the biogas generator comprises a waste gas pipeline 1, wherein the waste gas pipeline 1 is communicated with an air supply pipeline 2, the air supply pipeline 2 is a double-layer pipeline, a cavity 9 is arranged in the air supply pipeline 2, the waste gas pipeline 1 is communicated with the cavity 9, a plurality of air passages 5 are arranged in the cavity 9, the air passages 5 are attached to an inner-layer pipeline 4 in the double-layer pipeline, and the waste gas pipeline 1 is communicated with the air passages 5. Therefore, the methane in the gas supply pipeline 2 is directly heated by the waste heat of the waste gas in the waste gas conveying process, so that the temperature of the methane rises, the methane is easier to ignite in the subsequent ignition process, the combustion is more sufficient, the condition of insufficient combustion cannot exist, and the emission of carbon monoxide is reduced.

The outer wall of the air passage 5 is in a circular arch shape, the air passage 5 is fixed on the outer wall of the inner layer pipeline 4, and the air passage 5 is distributed along the length direction of the air supply pipeline 2 and is uniformly distributed on the outer wall of the inner layer pipeline 4. The cavity 9 that the outer wall of the air flue 5 of dome shape and inlayer pipeline 4 formed, waste gas flow in cavity 9, direct and inlayer pipeline 4's outer wall contact for the heat utilization efficiency of waste gas reaches the biggest, makes the waste heat utilization efficiency of waste gas further promote.

The outer layer pipeline 3 of the double-layer pipeline is provided with an access port 6, and the access port 6 is communicated with the air passage 5 and extends out of the outer layer pipeline 3. Just so can insert exhaust duct 1 through inserting mouthful 6, need not divide into the stranded with exhaust duct 1, insert more conveniently.

The outer layer pipeline 3 of the double-layer pipeline is provided with a connecting outlet 7, the connecting outlet 7 is communicated with the air passage 5 and is respectively arranged at two ends of the air passage 5 through the connecting inlet 6. The waste gas is discharged from the outlet 7 after the heating is finished, and can be directly discharged after being purified in a waste gas treatment device.

And a pressurizing air pump 8 is arranged on the waste gas pipeline 1, and the pressurizing air pump 8 pushes waste gas to flow in the waste gas pipeline 1. A pressurizing air pump 8 is added to the exhaust pipe 1 in order to ensure the fluidity of the exhaust gas.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The waste heat recycling device of the biogas generator is characterized in that: including the exhaust gas conduit, the exhaust gas conduit communicates with the gas pipeline, the gas pipeline is double-deck pipeline, be equipped with the cavity in the gas pipeline, the exhaust gas conduit with the cavity intercommunication, be equipped with a plurality of air flues in the cavity, the air flue laminate in inlayer pipeline in the double-deck pipeline, the exhaust gas conduit with the air flue intercommunication.

2. The waste heat recycling device of the biogas generator as recited in claim 1, characterized in that: the outer wall of the air passage is in a circular arch shape, the air passage is fixed on the outer wall of the inner layer pipeline, and the air passage is distributed along the length direction of the air supply pipeline and is uniformly distributed on the outer wall of the inner layer pipeline.

3. The waste heat recycling device of the biogas generator as recited in claim 1, characterized in that: the outer layer pipeline of the double-layer pipeline is provided with an access port, and the access port is communicated with the air passage and extends out of the outer layer pipeline.

4. The biogas generator waste heat recovery and utilization device of claim 3, characterized in that: the outer layer pipeline of the double-layer pipeline is provided with a connecting outlet, and the connecting outlet is communicated with the air passage and is respectively arranged at two ends of the air passage.

5. The waste heat recycling device of the biogas generator as recited in claim 1, characterized in that: and a pressurizing air pump is arranged on the waste gas pipeline and pushes waste gas to flow in the waste gas pipeline.