Solar photo-thermal heat storage system and method of deep peak regulation of combined heat and power generation unit

A technology for a cogeneration unit and a heat storage system, which is applied in the field of solar thermal energy storage systems and can solve problems such as excessive discharge of system equipment, insufficient heat supply, and waste of heat supply.

Active Publication Date: 2019-12-03
DATANG DONGBEI ELECTRIC POWER TESTING & RES INST
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  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Although the above technologies can achieve a certain peak-shaving effect, they cannot achieve the purpose of deep peak-shaving due to safety issues such as boilers and turbines.
For example, electric boiler technology only consumes electricity load internally and converts it into heat supply, which does not save ene

Method used

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  • Solar photo-thermal heat storage system and method of deep peak regulation of combined heat and power generation unit

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Embodiment Construction

[0034] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0035] ginseng figure 1 As shown, this embodiment provides a solar thermal energy storage system for deep peak regulation of a cogeneration unit, including a medium-pressure cylinder 1; a low-pressure cylinder 2; a condenser 3; a deaerator 4; and a low-pressure heater 5; Refiner 6; heating network heater 7; water distributor 8; hot water storage tank 9; primary pipe network 10; solar thermal heater 11; 12-heating network circulating water pump;

[0036] Wherein, the medium pressure cylinder 1 is connected with one side of the low pressure cylinder 2 and one side of the heating network heater 7 at the same time, the other side of the low pressure cylinder 2 is connected with one side of the con...

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Abstract

The invention relates to a solar photo-thermal heat storage system and method of deep peak regulation of a combined heat and power generation unit. A solar photo-thermal heater and a hot water heat storage tank system are arranged in a thermal power generating unit system; in a non-peak regulation period, the solar photo-thermal heater is used for heating circulating water and cold water of the heat supply network; exhaust steam of a pressure cylinder in the unit can be extracted from the part with insufficient heating; the heat supply network cold water is heated through the heat supply network heat exchanger, the heated water is stored in the heat storage water tank; in the period needing deep peak regulation, the hot water in the heat storage water tank is supplied to the heat supply network primary network system, so that deep peak regulation is realized, meanwhile, the power generation load is reduced, and continuous and stable operation of the unit is ensured. In the whole peak shaving process, the solar photo-thermal heating technology and the hot water heat storage technology are applied, the online peak shaving capacity of the unit is improved, the operation energy consumption of the unit is reduced, and the difficulty of energy consumption is effectively relieved.

Description

technical field [0001] The invention belongs to the technical field of electric power energy, and in particular relates to a solar photothermal heat storage system and method for deep peak regulation of a combined heat and power unit. Background technique [0002] In recent years, the increase in energy demand and the depletion of fossil energy have led to the rapid development of technologies related to renewable resources. In terms of electricity, wind power and photovoltaics have achieved sustained and rapid development. However, there are also common technical problems, such as serious wind and light abandonment problems. One of the main factors leading to the problem of abandoned wind and light is the limitation of wind power and photovoltaic capacity. Consumption has become a key factor restricting the development of domestic wind power and photovoltaics, and the situation is becoming increasingly severe. To solve the problem of wind power and photovoltaic consumptio...

Claims

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Application Information

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IPC IPC(8): F01K17/02F24S20/00F24S80/00
CPCF01K17/02F24S20/00F24S80/00Y02E10/40Y02E20/14
Inventor 刘刚于光
Owner DATANG DONGBEI ELECTRIC POWER TESTING & RES INST
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