CN217538847U

CN217538847U - Regional energy supply system based on gas combined cooling heating and power supply

Info

Publication number: CN217538847U
Application number: CN202221705510.5U
Authority: CN
Inventors: 李国庆; 谈栋栋; 王方辰; 王宏飞; 孟宪文
Original assignee: Shaanxi Gas Group Lingzhong Energy Engineering Technology Co ltd
Current assignee: Shaanxi Gas Group Lingzhong Energy Engineering Technology Co ltd
Priority date: 2022-07-04
Filing date: 2022-07-04
Publication date: 2022-10-04
Anticipated expiration: 2032-07-04

Abstract

The utility model relates to an energy supply technical field just discloses a regional energy supply system based on confession of gas cooling heating power, including gas internal-combustion engine, gas boiler, generator, transformer distribution equipment and electric refrigerator, gas internal-combustion engine and gas boiler all are connected with natural gas line, gas boiler supplies heat for the user, gas internal-combustion engine is connected the electricity generation with the generator, the electricity of electricity and electric wire netting that the generator produced is incorporated into the power networks and is supplied power for the user to transformer distribution equipment, electric refrigerator is connected with transformer distribution equipment and supplies cold for the user; this system gets into flue gas hot water type absorption air conditioning unit and plate heat exchanger with high temperature flue gas and high temperature cooling water and carries out the cooling hot water, and gas internal-combustion engine and gas boiler supplement and peak shaving simultaneously, and energy supply stability is high to can utilize the flue gas, both improve energy utilization efficiency by a wide margin, reduce the emission of harmful gas and carbon simultaneously, realize the high-efficient clean comprehensive utilization of resource.

Description

Regional energy supply system based on gas combined cooling heating and power supply

Technical Field

The utility model relates to an energy supply technical field specifically is a regional energy supply system based on supply of gas cooling heating and power trigeminy.

Background

With the acceleration of industrialization and urbanization processes, the demand of residents in China on heat supply is more and more, and a regional heat and cold supply system refers to a system which uses one or more energy stations to intensively prepare hot water, cold water or steam and other cooling media and heating media for building groups in a certain region, and provides the hot water, cold water or steam and other cooling media and heating media for end users through a regional pipe network so as to realize the refrigeration or heating requirements of the users. The regional heating and cooling brings environmental protection benefits through comprehensive planning of system design, operation and maintenance, and brings economic benefits through scale benefits generated by centralized air conditioner cold water production and sale, so that the regional heating and cooling system is more applied to urban centers of developed countries.

At present, the design of the regional energy supply system has single cold, heat and electricity sources, and the stability and diversity of each energy supply link are difficult to be fully ensured.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a regional energy supply system based on supply of gas cooling, heating and power trigeminy possesses energy supply stability height, can utilize the flue gas, and the all comparatively single problem of cold, heat, the electric source when present regional energy supply system design has been solved to the nimble advantage of energy supply.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a regional energy supply system based on triple power supply of gas cooling, heating and power comprises a gas internal combustion engine, a gas boiler, a generator, power transformation and distribution equipment and an electric refrigerator, wherein the gas internal combustion engine and the gas boiler are connected with a natural gas pipeline, the gas boiler supplies heat for users, the gas internal combustion engine is connected with the generator to generate power, the power generated by the generator is connected to the power transformation and distribution equipment in a grid mode to supply power for the users, and the electric refrigerator is connected with the power transformation and distribution equipment to supply cold for the users.

Further, the system also comprises a smoke hot water type absorption air conditioning unit, wherein the smoke hot water type absorption air conditioning unit is connected with the gas internal combustion engine, and smoke generated by the gas internal combustion engine enters the smoke hot water type absorption air conditioning unit to supply cold or heat for users.

Further, the operation of the smoke hot water type absorption air conditioning unit is determined by different seasons.

And further, the device also comprises a cylinder sleeve water cooler, wherein the cylinder sleeve water cooler is connected with the gas internal combustion engine, and high-temperature cooling water generated by the gas internal combustion engine enters the smoke hot water type absorption air conditioning unit through the cylinder sleeve water cooler to supply cold for users.

Further, still include plate heat exchanger, plate heat exchanger is connected with cylinder liner water cooler, the cooling water that cylinder liner water cooler flows passes through plate heat exchanger for user's heat supply.

Further, the flue gas generated by the gas boiler is connected to a flue gas hot water type absorption air conditioning unit.

Furthermore, the natural gas pipeline is connected with the smoke hot water type absorption air conditioning unit to perform afterburning.

(III) advantageous effects

Compared with the prior art, the utility model provides a regional energy supply system based on supply of gas cooling heating power trigeminy possesses following beneficial effect:

1. according to the regional energy supply system based on the gas combined cooling heating power supply, high-temperature flue gas and high-temperature cooling water enter the flue gas hot water type absorption air conditioning unit and the plate heat exchanger to supply cold and hot water, and meanwhile, the gas internal combustion engine and the gas boiler are supplemented and peak-shaving, so that the energy supply stability is high;

2. the regional energy supply system based on the combined supply of the gas, the heat and the power can utilize the flue gas, thereby greatly improving the energy utilization efficiency, reducing the emission of harmful gas and carbon, and realizing the high-efficiency clean comprehensive utilization of resources and the value increase of products;

3. this regional energy supply system based on supply of gas cooling, heating and power trigeminy can adjust the source of hot and cold water according to the difference in seasons, and the energy supply is nimble.

Drawings

Fig. 1 is a schematic diagram of the supply flow of the present invention.

In the figure: 1. a gas internal combustion engine; 2. a gas boiler; 3. a generator; 4. a power transformation and distribution device; 5. an electric refrigerator; 6. a flue gas hot water type absorption air conditioning unit; 7. a cylinder liner water cooler; 8. a plate heat exchanger.

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 work belong to the protection scope of the present invention.

A regional energy supply system based on gas cooling, heating and power supply comprises a gas internal combustion engine 1, a gas boiler 2, a generator 3, a power transformation and distribution device 4 and an electric refrigerator 5, wherein the gas internal combustion engine 1 and the gas boiler 2 are connected with a natural gas pipeline, natural gas provides energy for the gas internal combustion engine 1 and the gas boiler 2 to work, the gas boiler 2 supplies heat for users, the gas internal combustion engine 1 is connected with the generator 3 to generate electricity, electricity generated by the generator 3 is connected to the power transformation and distribution device 4 to supply power for the users, the electric refrigerator 5 is connected with the power transformation and distribution device 4 to supply cold for the users, and the natural gas can be converted into cold, heat and electricity required by the users through the matching use of the gas internal combustion engine 1, the gas boiler 2, the generator 3, the power transformation and distribution device 4 and the electric refrigerator 5;

further, the system also comprises a smoke hot water type absorption air conditioning unit 6, wherein the smoke hot water type absorption air conditioning unit 6 is connected with the gas internal combustion engine 1, smoke generated by the gas internal combustion engine 1 enters the smoke hot water type absorption air conditioning unit 6 to supply cold or heat for users, the work of the smoke hot water type absorption air conditioning unit 6 is determined by different seasons, namely, in summer working conditions, the smoke hot water type absorption air conditioning unit 6 absorbs the smoke and can provide cold water for the users, in winter working conditions, the smoke hot water type absorption air conditioning unit 6 absorbs the smoke and can provide hot water for the users, the smoke generated by the gas boiler 2 is connected to the smoke hot water type absorption air conditioning unit 6, and the smoke hot water type absorption air conditioning unit 6 can utilize the smoke, so that the energy utilization efficiency is greatly improved, and the emission of harmful gases and carbon is reduced;

further, still include cylinder liner water chiller 7, cylinder liner water chiller 7 is connected with gas internal combustion engine 1, the high temperature cooling water that gas internal combustion engine 1 produced gets into flue gas hot water type absorption air conditioning unit 6 through cylinder liner water chiller 7 and for the user cooling, furthermore, still include plate heat exchanger 8, plate heat exchanger 8 is connected with cylinder liner water chiller 7, the cooling water that cylinder liner water chiller 7 produced passes through plate heat exchanger 8 and for the user heat supply, cylinder liner water chiller 7 and plate heat exchanger 8 can further improve the source of cooling and heat supply, make full use of to the energy, the natural gas line is connected with flue gas hot water type absorption air conditioning unit 6 and is carried out the afterburning.

Referring to fig. 1, in summer, natural gas provides energy for a gas internal combustion engine 1 to drive the gas internal combustion engine 1 to work, the gas internal combustion engine 1 drives a generator 3 to work to generate power, the power generated by the generator 3 and the power of a power grid are connected to a power transformation and distribution device 4 to supply power to a user, meanwhile, smoke generated by the gas internal combustion engine 1 and high-temperature cooling water generated by the gas internal combustion engine 1 enter a smoke hot water type absorption air conditioning unit 6 through a cylinder liner water cooler 7, the smoke hot water type absorption air conditioning unit 6 works to convert and provides cold water for the user, an electric refrigerator 5 with insufficient cold energy works to supplement, the cold water mainly comes from the smoke hot water type absorption air conditioning unit 6, and the electric refrigerator 5 provides less energy and saves electric energy;

referring to fig. 1, in working conditions in winter, natural gas provides energy for the gas internal combustion engine 1 and the gas boiler 2 together to drive the gas internal combustion engine 1 and the gas boiler 2 to work, smoke generated by the gas internal combustion engine 1 and the gas boiler 2 enters the smoke hot water type absorption air conditioning unit 6, the smoke hot water type absorption air conditioning unit 6 works to convert and provides hot water for users, meanwhile, high-temperature cooling water generated by the gas internal combustion engine 1 enters the plate heat exchanger 8 through the cylinder liner water cooler 7 to provide heat for the users, and the part with insufficient heat can be provided by the gas boiler 2.

The proportion of high-temperature cylinder liner water in the waste heat of the gas internal combustion engine 1 in the whole supply system is large, the quality of the high-temperature cylinder liner water is far lower than that of high-temperature flue gas, and the high-temperature flue gas and the cylinder liner water have wide applicability and can be used for heating of a radiator and preparation of domestic hot water; however, the cooling water of the lubricating oil is limited by the temperature, and is only suitable for the occasions of domestic hot water, swimming pool heating and the like, and is more suitable for buildings with a large quantity of domestic hot water load demands, such as low-temperature heating modes of fan coil, floor radiation heating and the like which are adopted at the tail end. In addition, the coupling design with a heat pump system (a ground source heat pump and a water source heat pump) is also better. The hospital buildings have the requirements of refrigeration and domestic hot water all the year round, and the technological process is flexible in cold and hot load adjustment and is relatively suitable for the hospital buildings.

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. The utility model provides a regional energy supply system based on supply of gas cooling, heating and power trigeminy, includes gas internal-combustion engine (1), gas boiler (2), generator (3), distribution equipment (4) and electric refrigerator (5), its characterized in that: the gas-fired boiler (2) and the gas-fired internal combustion engine (1) are connected with a natural gas pipeline, the gas-fired boiler (2) supplies heat for users, the gas-fired internal combustion engine (1) is connected with the generator (3) to generate electricity, electricity generated by the generator (3) is connected to the power grid to the power transformation and distribution equipment (4) to supply power for the users, and the electric refrigerator (5) is connected with the power transformation and distribution equipment (4) to supply cold for the users.

2. The regional energy supply system based on the combined supply of gas, heat, power and energy as claimed in claim 1, wherein: the gas-water-type absorption air-conditioning unit is characterized by further comprising a smoke-water-type absorption air-conditioning unit (6), wherein the smoke-water-type absorption air-conditioning unit (6) is connected with the gas internal combustion engine (1), and smoke generated by the gas internal combustion engine (1) enters the smoke-water-type absorption air-conditioning unit (6) to supply cold or heat for users.

3. The regional energy supply system based on triple co-generation of gas, heat and power as claimed in claim 2, characterized in that: the work of the smoke hot water type absorption air conditioning unit (6) is determined by different seasons.

4. The regional energy supply system based on the combined supply of gas, heat, power and energy as claimed in claim 1, wherein: the high-temperature cooling water generated by the gas combustion engine (1) enters the smoke hot water type absorption air conditioning unit (6) through the cylinder sleeve water cooler (7) to supply cold for users.

5. The regional energy supply system based on the combined supply of gas, heat, power and energy as claimed in claim 4, wherein: still include plate heat exchanger (8), plate heat exchanger (8) are connected with cylinder liner water cooler (7), the cooling water that cylinder liner water cooler (7) flowed out passes through plate heat exchanger (8) and supplies heat for the user.

6. The regional energy supply system based on the combined supply of gas, heat, power and energy as claimed in claim 3, wherein: and the flue gas generated by the gas boiler (2) is connected to a flue gas hot water type absorption air conditioning unit (6).

7. The regional energy supply system based on the combined supply of gas, heat, power and energy as claimed in claim 6, wherein: and the natural gas pipeline is connected with the smoke hot water type absorption air conditioning unit (6) for afterburning.