Park-level comprehensive energy supply system

Abstract

The invention discloses a park-level comprehensive energy supply system. The park-level comprehensive energy supply system comprises mains supply and is characterized in that the power output end of anatural gas distributed energy station (1) is connected with the power input ends of an industry park or industrial park load center (9), an air source heat pump (7) and an electric refrigerating airconditioner (8), the flue gas output end of the natural gas distributed energy station (1) is connected with a waste heat recycling device (2), and the steam output end of the waste heat recycling device (2) is connected with a steam type lithium bromide refrigerating unit (5) and a steam heat storage unit (4); the hot water output end of the waste heat recycling device (2) is connected with a domestic hot water storage unit (3); the power output end of a roof distributed photovoltaic device (6) is connected with the input ends of the industry park or industrial park load center (9), the airsource heat pump (7) and the electric refrigerating air conditioner (8). By the park-level comprehensive energy supply system, the technical problems that the prior art excessively depend on large-power-grid power supply, large-area power failure is caused easily, energy use reliability is poor and the like are solved.

Description

technical field [0001] The invention belongs to the technical field of comprehensive energy, and in particular relates to a park-level comprehensive energy supply system. Background technique [0002] Existing industrial parks or industrial park energy supply systems mainly rely on electric energy, and through the consumption of electric energy, various energy demands of users can be directly met. For example, the cold air is obtained through the electric refrigeration air conditioner to achieve the cooling effect; through the heating mode of the cold and hot two-phase air conditioner, heat is obtained in winter to maintain the indoor temperature. In the traditional energy consumption model, the demand for energy is too much attached to electric energy, and the electricity from coal-fired power generation or large natural gas generator sets from the large power grid is the main one. The energy consumption model of industrial parks or industrial parks has the following defic...

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Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a park-level comprehensive energy supply system to solve the problem that the energy supply system of the industrial park or industrial park in the prior art mainly relies on electric energy, and there are: 1. Too much dependence on the power supply of the large power grid, when When a certain transmission link of the power grid fails, it will easily lead to a large-scale power outage, which will affect the energy demand of users; 2. The cooling demand is mostly met by electric energy-driven air conditioners, and the domestic hot water is mostly supplied by electric heaters. ; Electric energy belongs to high-grade energy, and the electric energy is directly used for refrigeration or heating, and high-grade electric energy is converted into low-grade heat or cold energy, which reduces the grade of energy and is economical; There is line loss in the distance transmission process, which increases the cost of energy consumption; 4. The large consumption of fossil energy such as coal easily leads to environmental pollution problems; there are places on the roof of industrial parks or industrial parks that can be used for photovoltaic power generation, which have not been fully utilized. Utilization; in the consumption of electric energy, renewable resource electric energy such as photovoltaic power generation is not considered; 5. The energy consumption system that uses electric energy as a single energy input has low energy reliability and other technical problems

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