CN218760274U

CN218760274U - Rural comprehensive energy system

Info

Publication number: CN218760274U
Application number: CN202222904262.3U
Authority: CN
Inventors: 吴涛; 刘红岐; 向芋融; 何雨横; 王云龙
Original assignee: Southwest Petroleum University
Current assignee: Southwest Petroleum University
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-03-28
Anticipated expiration: 2032-11-02

Abstract

The utility model discloses a rural comprehensive energy system, including photovoltaic heating module, light and heat module, heat exchange module, living beings marsh gas unit, economic benefits and social benefits circulation power generation module, consumer, thermoelectric conversion module and consume the thermal module, photovoltaic heating module and heat exchange module pass through electric connection, light and heat module and heat exchange module pass through the heat energy transfer union coupling, also all pass through the heat energy transfer union coupling between heat exchange module and living beings marsh gas unit and the economic benefits and social benefits circulation power generation module, economic benefits and social benefits circulation power generation module all passes through electric connection with economic benefits and social benefits conversion module and consumer, living beings marsh gas unit and economic benefits and social benefits conversion module all pass through the heat energy transfer union coupling with consuming the thermal module. The utility model discloses an establish the complementary comprehensive energy system of multipotency towards rural area, fully consider renewable energy along with the uncertainty and the complementary coupling nature of multipotency of time, both reached energy saving and emission reduction's effect, created economic benefits again.

Description

Rural comprehensive energy system

Technical Field

The utility model relates to a comprehensive energy system technical field specifically is rural comprehensive energy system.

Background

Energy is the basis of human survival and development, the energy demand is increased along with the high-speed development of social economy, the increasing of industrial production level and resident consumption level, and large-scale regional and global environmental problems are caused.

In China, renewable energy sources such as solar energy, biomass energy and the like are very abundant in rural areas, but the energy utilization rate is low, the pollution is serious, currently, the rural areas urgently need to optimize, adjust and convert an energy consumption structure, a low-carbon and efficient mode is found, the comprehensive energy system can improve the energy utilization rate, reduce pollutant emission and effectively solve the problems in rural energy development, and therefore the rural-oriented multi-energy complementary comprehensive energy system is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rural comprehensive energy system possesses the complementary advantage of multipotency, has solved the problem that present energy structure is single and the utilization ratio is low to and realize the problem to the nimble dispatch of multipotency source supply with.

In order to achieve the above object, the utility model provides a following technical scheme: rural comprehensive energy system, including photovoltaic heating module, light and heat module, heat exchange module, living beings marsh gas unit, economic benefits and social benefits circulation power generation module, consumer, thermoelectric conversion module and consume the heat module, photovoltaic heating module and heat exchange module pass through electric connection, light and heat module and heat exchange module pass through heat energy transfer union coupling, also all through heat energy transfer union coupling between heat exchange module and living beings marsh gas unit and the economic benefits and social benefits circulation power generation module, economic benefits and social benefits circulation power generation module and thermoelectric conversion module and consumer all pass through electric connection, living beings marsh gas unit and economic benefits and social benefits conversion module all pass through heat energy transfer union coupling.

Preferably, the biomass biogas unit comprises a biogas digester, a gas storage tank, a combustion chamber and a waste heat boiler, the biogas digester, the gas storage tank and the combustion chamber are all connected through a biogas pipe, and the gas storage tank and the waste heat boiler are connected through a biogas pipe.

Preferably, the main equipment of the double-effect cycle power generation module is a back pressure turbine and an ORC screw expander, and the steam Rankine cycle power generation is adopted.

Preferably, the thermoelectric conversion module comprises an air heat source pump and an electric boiler, and the air heat source pump, the electric boiler and the double-effect circulating power generation module are electrically connected.

Preferably, the heat exchange module comprises an electric heater, a heat storage tank and a heat exchanger, and the heat storage tank and the heat exchanger are connected with the double-effect circulation power generation module through heat energy transfer pipes.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses an establish the complementary comprehensive energy system of multipotency towards rural area, fully consider renewable energy along with the uncertainty and the complementary coupling nature of multipotency of time, both reached energy saving and emission reduction's effect, created economic benefits again.

2. The utility model discloses not only realize the step utilization of the energy, still realized the interconversion of the xenogenesis energy, solved present rural area energy single structure and the problem that the utilization ratio is low.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

fig. 2 is a schematic diagram of the complementary coupling energy supply principle of solar energy and biomass methane of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-2, a rural comprehensive energy system includes a photovoltaic heating module, a photo-thermal module, a heat exchange module, a biomass biogas unit, a dual-effect cyclic power generation module, a thermoelectric exchange module, an electric device and a heat consumption module, the photovoltaic heating module and the heat exchange module are electrically connected, the photo-thermal module and the heat exchange module are connected through a heat energy transfer pipe, the heat exchange module is also connected with the biomass biogas unit and the dual-effect cyclic power generation module through a heat energy transfer pipe, the dual-effect cyclic power generation module is electrically connected with the thermoelectric conversion module and the electric device, the biomass biogas unit and the thermoelectric conversion module are connected with the heat consumption module through a heat energy transfer pipe, the photovoltaic heating module and the photo-thermal module can convert abundant solar energy resources into heat energy which can be directly utilized, and the generated heat energy is stored in a heat storage tank for direct utilization by a user or for the next stage utilization of the system, so that solar energy can be better utilized, and the use of other resources is greatly reduced.

Further, the light and heat module comprises solar energy collecting plate and heat storage tank, has the advantage of power supply stability, continuity, can store unnecessary heat energy when illumination is sufficient, releases the heat to generate electricity from the storage tank when illumination is not enough, and the combination of light and heat module and photovoltaic heating module can effectively solve the problem that the photovoltaic receives the weather and restricts and can only generate electricity in daytime and stop evening, can control the problem that light and heat module electricity generation cost is high simultaneously again.

Furthermore, the heat exchange module comprises an electric heater, a heat storage tank and a heat exchanger, the electric heater, the heat storage tank and the heat exchanger are all connected with the double-effect circulation power generation module through heat energy transfer pipes, and the heat exchanger can generate a large amount of steam from heat in the heat storage tank in a convection heat transfer mode to provide steam kinetic energy for the steam turbine generator.

Furthermore, the main equipment of the double-effect circulating power generation module is a back pressure steam turbine and an ORC screw expander, the steam turbine is connected with the ORC screw expander in series for combined circulating power generation, the multi-energy complementation is ingeniously realized, solar energy cannot be produced at night, and biomass methane has no obvious time characteristic, so that the power generation equipment in the daytime mainly uses photovoltaic and photo-thermal energy, biomass resources at night are mainly used for power generation, the photovoltaic and photo-thermal energy and the biomass resources at night supplement each other, and the problems of single structure and low utilization rate of the current rural energy are well solved.

Furthermore, the biomass biogas unit consists of a biogas digester, a gas storage tank, a combustion chamber and a waste heat boiler, so that resources such as household garbage, poultry manure, crop straws and the like in rural areas are fully utilized, the fermentation temperature in winter is low, and the gas production rate of biogas is influenced, therefore, a small part of the collected solar heat can be distributed to the biogas digester to improve the fermentation temperature of the biogas digester, and the biogas yield is improved.

Furthermore, the power utilization equipment and the heat consumption module are mainly from the fields of rural residential life, poultry farming, crop storage, agricultural product processing, fishery and the like, and the requirement problem of living and production in rural areas on energy is well met.

When the biomass solar energy waste heat recovery device is used, the solar energy collector absorbs sunlight and reflects the sunlight on the heat collecting tube to generate high-temperature heat energy of 500-600 ℃, the generated high-temperature heat energy is subjected to heat transfer and exchange through oil bodies in the heat collecting tube to generate a large amount of steam, the rich high-temperature heat energy is stored in the heat storage tank for use when the sunlight is insufficient, meanwhile, biomass is fermented in the methane tank to generate methane, the generated methane is sent into the combustion chamber to be combusted, the heat is released, a large amount of steam is generated through radiation heat transfer, the rich methane is stored in the gas storage tank and is subjected to peak regulation or sent into a waste heat boiler for use, after the steam generated by solar energy and methane is further heated through the superheater, most of superheated steam enters the back pressure steam turbine to drive the steam turbine to generate electricity, the remaining small part of superheated steam enters the steam boiler to generate more steam, then the steam discharged from the steam turbine is condensed into water through the condenser and is sent into the preheater together with the steam generated by the steam boiler to be mixed and preheated, and then sent into the ORC expansion machine to be recycled, and the next cycle is carried out in a reciprocating mode.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Rural comprehensive energy system, including photovoltaic heating module, light and heat module, heat exchange module, living beings marsh gas unit, economic benefits and social benefits circulation power generation module, consumer, thermoelectric conversion module and consume heat module, its characterized in that: the photovoltaic heating module is electrically connected with the heat exchange module, the photo-thermal module is connected with the heat exchange module through a heat energy transfer pipe, the heat exchange module is also connected with the biomass methane unit and the double-effect circulating power generation module through the heat energy transfer pipe, the double-effect circulating power generation module is electrically connected with the thermoelectric conversion module and the electric equipment, and the biomass methane unit, the thermoelectric conversion module and the heat consumption module are connected through the heat energy transfer pipe.

2. The rural integrated energy system of claim 1, wherein: the biomass biogas unit comprises a biogas digester, a gas storage tank, a combustion chamber and a waste heat boiler, wherein the biogas digester, the gas storage tank and the combustion chamber are all connected through a biogas pipe, and the gas storage tank is connected with the waste heat boiler through the biogas pipe.

3. The rural integrated energy system of claim 1, wherein: the main equipment of the double-effect cycle power generation module is a back pressure steam turbine and an ORC screw expander, and steam Rankine cycle power generation is adopted.

4. The rural integrated energy system of claim 1, wherein: the thermoelectric conversion module comprises an air heat source pump and an electric boiler, and the air heat source pump, the electric boiler and the double-effect circulating power generation module are electrically connected.

5. The rural integrated energy system of claim 1, wherein: the heat exchange module comprises an electric heater, a heat storage tank and a heat exchanger, and the heat storage tank and the heat exchanger are connected with the double-effect circulation power generation module through heat energy transfer pipes.