Energy storage-heat pump linkage heat-electricity-cold collaborative peak regulation system and operation method

Abstract

The invention discloses an energy storage-heat pump linkage heat, power and cold collaborative peak regulation system and an operation method. The system comprises a combined heat and power generation unit, an evaporator, a condenser, a compressor, wind power and photovoltaic power generation equipment, an electric power controller, a cross-seasonal energy storage chamber and the like. Surplus electric quantity of a power grid is consumed through a heat pump and converted into heat energy and cold energy in a power off-peak period, and part of condensed water of a steam turbine is heated through heat storage in a power peak period to improve the power output of a unit; the unit heats heating return water through heat storage release and steam turbine steam extraction in a cascade mode in winter, electric heating peak regulation is achieved, external cooling and electric cooling peak regulation are achieved through electric cooling conversion and cold energy release in summer, and cross-seasonal energy storage and peak regulation are achieved through electric heating and cold conversion in spring and autumn. Power storage is replaced by cold storage and heat storage, peak regulation is promoted through heat supply and cold supply, and the new energy power consumption level can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical fields of wind and solar power generation, combined heat and cooling, power station peak regulation and new energy power consumption, and specifically to a heat and electricity cooling coordinated peak regulation system linked with an energy storage and heat pump and an operation method. Background Art

[0002] Renewable energy generation such as solar and wind power has strong volatility and anti-peak characteristics, which brings huge challenges to the peak load regulation of the power grid. Thermal power is transforming from basic power to peak load regulation power. In the next few years, deep peak load regulation of thermal power units will become a normal state. Improving the operating flexibility of thermal power units and promoting the consumption of new energy power is a key technology in the energy and power industry. At present, the conventional thermal power units have the following technical problems in terms of peak load regulation flexibility: (1) The comprehensive energy utilization level of peak-shaving methods such as electric boilers and bypass main steam is low. In order to improve the peak-shaving capacity of the unit during the heating and cooling seasons, the comprehensive energy efficiency level of the unit will be further reduced.

[0003] (2) The existing peak-shaving technology for thermal power units has problems such as inflexible parameter adjustment and inflexible selection of heat and cooling sources. Conventional peak-shaving technology for units faces practical problems such as low energy efficiency and small peak-shaving depth.

[0004] To this end, the present invention proposes a thermal power and cooling coordinated peak-shaving system and operation method of an energy storage-heat pump linkage. Through the integration of heat pumps, heating, cooling, traditional electricity and new energy electricity, the complementary exchange between multiple energy forms such as heat, electricity and cold is realized. Through energy storage integration, multi-energy flow cross-time and space utilization is realized, and cold storage and heat storage are used instead of electricity storage to achieve efficient coordinated peak-shaving of heat, electricity and cooling, thereby greatly improving the level of new energy power consumption. Summary of the invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a wind-light-coal-storage cross-seasonal complementary and joint supply system and operation method by replacing electricity storage and heating and cooling by cold storage, so as to greatly improve the level of new energy power consumption. The system includes a cogeneration unit, an evaporator, a condenser, a compressor, wind power and photovoltaic power generation equipment, a power controller, a cross-season energy storage room, etc.; during the low power period, the heat pump consumes the excess power of the power grid and converts it into heat and cold energy, and during the peak power period, the heat storage is used to heat the part of the condensate of the turbine to increase the power output of the unit; in winter, the unit releases heat storage and heats the return water of the steam turbine to realize electric heating peak regulation, and in summer, the electric cooling conversion and cold energy release are used to realize external cooling and electric cooling peak regulation, and in spring and autumn, the electric heating and cold conversion are used to realize cross-seasonal energy storage and peak regulation. The present invention replaces electricity storage and heating and cooling by cold storage to promote peak regulation, which can greatly improve the level of new energy power consumption.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A heat-electricity-cold coordinated peak-shaving system linked by energy storage and heat pump, comprising a steam side of a boiler 01, a steam turbine unit 02, a condenser 03, a steam turbine heat recovery component 04, and a water supply side of the boiler 01, which are connected in sequence; the steam exhaust pipe of the intermediate pressure cylinder of the steam turbine unit 02 is connected in sequence to the steam extraction valve 07, the hot fluid side of the heat exchanger A 06, and the deaerator of the steam turbine heat recovery component 04; the heat supply return water pipe is connected in sequence to the cold fluid side of the heat exchanger B 20, the cold fluid side of the condenser A 13, the cold fluid side of the heat exchanger A 06, and the hot water supply pump 3 7. Heating valve 29, heating pipeline; cooling return pipeline is connected in sequence to cooling return valve 26, water pump D 33, normal temperature storage tank 18, water pump C 32, switching valve A 23, hot fluid side of evaporator 16, water pump A 30, inter-seasonal low-temperature storage tank 17, cooling valve 25, water pump B 31, cooling pipeline; the pipeline between water pump C 32 and switching valve A 23 is also connected in sequence to switching valve B 24, cold fluid side of condenser B 14, water pump E 34, inter-seasonal high-temperature storage tank 19, control valve C27, heat exchanger B20 hot fluid side, water pump G36, return cooling valve 26, cold water return pipe; the pipeline between the cross-season high temperature storage tank 19 and the control valve C27 is also connected in sequence with the water pump J35, control valve D28, turbine heat recovery component 04 wall-type auxiliary feed water heater, return cooling valve 26, cold water return pipe; the compressor 12 outlet pipe is connected in sequence with the condenser A13 hot fluid side, control valve A21, throttle valve 15, evaporator 16 cold fluid side, compressor 12 inlet The outlet pipeline of the compressor 12 is also connected in sequence to the hot fluid side of the condenser B 14, the control valve B 22, the throttle valve 15, and the cold fluid side of the evaporator 16; the steam turbine unit 02 is connected to the coal-fired power station generator 05 through a mechanical shaft; the coal-fired power station generator 05, the wind power generation equipment 09, and the photovoltaic power generation equipment 08 are respectively connected to the three inlets A, B, and C of the power controller 10 through circuits; the two outlets A and B of the power controller 10 are respectively connected to the power grid 11 and the compressor 12 through circuits.

[0007] The energy storage-heat pump linked heat-electricity-cooling coordinated peak-shaving system is operated in the following manner during the peak electricity period in the winter heating season: the cooling valve 26, the cooling valve 25 and the water pump B 31 are closed; during the peak heat-peak electricity period, the hot water flow to the steam turbine heat recovery component 04 is controlled by adjusting the water pump J 35 and the control valve D 28 according to the electricity load, the hot water flow in the heating pipeline is controlled by adjusting the hot water supply pump 37 and the heating valve 29 according to the heat load, and the steam turbine unit 02 extraction volume and the heat flow through the heat exchanger B 20 are controlled by adjusting the steam extraction valve 07, the control valve C 27 and the water pump G 36 according to the heat load. For the flow on the fluid side, control valve A 21 is closed and control valve B 22 is opened. The power controller 10 is adjusted according to the real-time power load so that the excess power of the power grid can be absorbed by the compressor 12. The water pump A 30 and the switching valve A 23 are adjusted so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank 17 meets the temperature required for cooling. The switching valve B 24 and the water pump E 34 are adjusted so that the temperature of the hot water flowing to the inter-seasonal high-temperature storage tank 19 meets the established requirements. During the period of thermal trough and electricity peak, control valve C 27 and water pump G 36 are closed so that the heat exchanger B 20 does not work. Other operation adjustment methods are the same as those during the period of thermal peak and electricity peak.

[0008] The energy storage-heat pump linked heat-electricity-cooling coordinated peak-shaving system is operated in the following manner during the low electricity period in the winter heating season: close the cooling valve 26, the cooling valve 25 and the water pump B 31, close the water pump J 35 and the control valve D 28, close the control valve C 27 and the water pump G 36 to make the heat exchanger B 20 not work, control the hot water flow and temperature of the heating pipeline by adjusting the hot water supply pump 37, the heating valve 29 and the steam extraction valve 07 according to the heat load, adjust the power controller 10 according to the power load required by the power grid to give priority to the power generation of the wind power generation equipment 09 and the photovoltaic power generation equipment 08, and adjust the heat supply required by the outside. The power of the compressor 12 and the pressure and flow parameters of the throttle valve 15 are adjusted in accordance with the load rate of the coal-fired power plant generator 05, and the water pump A 30 and the switching valve A 23 are adjusted so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank 17 and the outlet temperature of the cold fluid side of the condenser A 13 reach the predetermined temperatures respectively; during the thermal peak-electricity trough period, the switching valve B 24, the control valve B 22 and the water pump E 34 are closed so that the condenser B 14 does not work; during the thermal trough-electricity trough period, the switching valve B 24, the control valve B 22 and the water pump E 34 are opened and adjusted so that the temperature of the hot water flowing into the inter-seasonal high-temperature storage tank 19 reaches the predetermined temperature.

[0009] The energy storage-heat pump linked heat-electricity-cooling coordinated peak-shaving system is operated in the following manner in the spring and autumn seasons: the cooling valve 26, the cooling valve 25 and the water pump B 31 are closed, the steam extraction valve 07, the hot water pump 37, the heating valve 29, the control valve C 27 and the water pump G 36 are closed, so that the heat exchanger B 20 and the heat exchanger A 06 do not work, and the control valve A 21 is closed so that the condenser A 13 does not work; during the peak electricity period, the switching valve B 24, the control valve B 22, the switching valve A 23, the water pump A 30, and the water pump E 34 are closed, and the power controller 10 is adjusted according to the power load required by the power grid to give priority to absorbing the power generation of the wind power generation equipment 09 and the photovoltaic power generation equipment 08 and close the pressure The circuit of the compressor 12 controls the flow of hot water to the steam turbine heat recovery component 04 by adjusting the water pump 35 and the control valve D 28 according to the power load; during the low power period, the water pump 35 and the control valve D 28 are closed, and the switching valve B 24, the control valve B 22, the switching valve A 23, the water pump A 30, and the water pump E 34 are opened and adjusted. According to the power load required by the power grid, the power controller 10 is adjusted to give priority to the power generation of the wind power generation equipment 09 and the photovoltaic power generation equipment 08 and adjust the circuit of the compressor 12, and the pressure and flow parameters of the throttle valve 15 are adjusted, so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank 17 and the temperature of the hot water flowing to the inter-seasonal high-temperature storage tank 19 reach the predetermined values ​​respectively.

[0010] The energy storage-heat pump linked thermal power and cooling coordinated peak-shaving system is operated in the following manner during the summer cooling period: the steam extraction valve 07, the hot water pump 37, the heating valve 29, the control valve C 27, the water pump G 36, and the control valve A 21 are closed; the return cooling valve 26, the cooling valve 25, the water pump B 31, and the water pump D 33 are opened and adjusted so that the cold water flow in the cooling pipeline meets the needs of the outside world and the cooling return water is completely recovered in the normal temperature storage tank 18; during the peak electricity period, the switching valve B 24, the control valve B 22, the switching valve A 23, the water pump A 30, and the water pump E 34 are closed; according to the power load required by the power grid, the power controller 10 is adjusted to give priority to absorbing the power generated by the wind power generation equipment 09 and the photovoltaic power generation equipment 08. The power is reduced and the circuit of the compressor 12 is closed. According to the power load, the water pump 35 and the control valve D 28 are adjusted to control the flow of hot water to the turbine heat recovery component 04. During the low power period, the water pump 35 and the control valve D 28 are closed, and the switching valve B 24, the control valve B 22, the switching valve A 23, the water pump A 30, and the water pump E 34 are opened and adjusted. According to the power load required by the power grid, the power controller 10 is adjusted to give priority to the power generation of the wind power generation equipment 09 and the photovoltaic power generation equipment 08 and adjust the circuit of the compressor 12, and the pressure and flow parameters of the throttle valve 15 are adjusted, so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank 17 and the temperature of the hot water flowing to the inter-seasonal high-temperature storage tank 19 reach the predetermined values ​​respectively.

[0011] Compared with the prior art, the present invention has the following advantages: (1) The return water of the heating network is heated in a cascade manner using electric heat pumps and steam turbine extraction, thus achieving orderly cascade utilization of energy.

[0012] (2) The use of cross-seasonal energy storage realizes the storage and utilization of energy across time and space, thereby improving the energy efficiency of the system.

[0013] (3) By replacing electricity storage and heating and cooling with cold and heat storage, peak load regulation can be promoted, thereby achieving a significant improvement in the system's energy efficiency.

[0014] (4) The present invention improves the consumption level of new energy electricity such as wind energy and solar energy in the heating season and the cooling season by rationally matching the operation method with the system configuration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a heat-electricity-cooling coordinated peak-shaving system and operation method of an energy storage-heat pump linkage according to the present invention. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] In order to realize the efficient and flexible coupling of energy cross-seasonal utilization technology, heat pump technology, wind and solar power generation technology and heating and cooling technology, the present invention provides a heat-electricity-cooling coordinated peak-shaving system linked with energy storage and heat pump, such as Figure 1As shown, a heat-electricity-cold coordinated peak-shaving system with energy storage-heat pump linkage includes a steam side of a boiler 01, a steam turbine unit 02, a condenser 03, a steam turbine heat recovery component 04, and a water supply side of the boiler 01, which are connected in sequence; the steam exhaust pipe of the intermediate pressure cylinder of the steam turbine unit 02 is connected in sequence to the steam extraction valve 07, the hot fluid side of the heat exchanger A 06, and the deaerator of the steam turbine heat recovery component 04; the heat supply return water pipe is connected in sequence to the cold fluid side of the heat exchanger B 20, the cold fluid side of the condenser A 13, the cold fluid side of the heat exchanger A 06, and the hot water supply Pump 37, heating valve 29, heating pipeline; cooling return pipeline is connected in sequence to cooling return valve 26, water pump D 33, normal temperature storage tank 18, water pump C 32, switching valve A 23, hot fluid side of evaporator 16, water pump A 30, inter-seasonal low-temperature storage tank 17, cooling valve 25, water pump B 31, cooling pipeline; the pipeline between water pump C 32 and switching valve A 23 is also connected in sequence to switching valve B 24, cold fluid side of condenser B 14, water pump E 34, inter-seasonal high-temperature storage tank 19, control valve The pipe between the inter-seasonal high-temperature storage tank 19 and the control valve C 27 is also connected in sequence to the water pump J 35, the control valve D 28, the turbine heat recovery component 04 wall-type auxiliary feedwater heater, the return cooling valve 26, and the return cooling water pipe; the outlet pipe of the compressor 12 is connected in sequence to the hot fluid side of the condenser A 13, the control valve A 21, the throttle valve 15, the cold fluid side of the evaporator 16, the inlet of the compressor 12 The outlet pipe of the compressor 12 is also connected to the hot fluid side of the condenser B 14, the control valve B 22, the throttle valve 15, and the cold fluid side of the evaporator 16 in sequence; the steam turbine unit 02 is connected to the coal-fired power station generator 05 through a mechanical shaft; the coal-fired power station generator 05, the wind power generation equipment 09, and the photovoltaic power generation equipment 08 are respectively connected to the three inlets of A, B, and C of the power controller 10 through circuits; the two outlets of A and B of the power controller 10 are respectively connected to the power grid 11 and the compressor 12 through circuits. Through the above system design, summer cooling, winter heating, and cross-season conversion and storage of excess electricity throughout the year can be realized, thereby greatly improving the system's flexible operation range and comprehensive energy utilization efficiency, and promoting the consumption of new energy electricity.

[0018] In order to develop the energy storage-heat pump linked heat-electricity-cooling coordinated peak-shaving system more scientifically and effectively, the system operates in the following manner during the peak electricity period in the winter heating season: close the cooling valve 26, the cooling valve 25 and the water pump B 31 to prevent the cooling equipment and pipelines from working; during the heat peak-electricity peak period, according to the electricity load, the water pump J 35 and the control valve D 28 are adjusted to control the hot water flow to the turbine heat recovery component 04, so as to achieve external heat storage auxiliary heating of the turbine feed water, thereby reducing the steam extraction of the turbine and increasing the power generation of the unit; according to the heat load, the hot water flow of the heating pipeline is controlled by adjusting the hot water supply pump 37 and the heating valve 29, so that the hot water flow meets the external heating demand; according to the heat load, the extraction valve 07, the control valve C 27 and the water pump G 36 are adjusted to control the The steam turbine unit 02 exhaust volume and the flow rate of the hot fluid side flowing through the heat exchanger B 20 make the system meet the external heating demand and power supply demand, close the control valve A 21 and open the control valve B 22 so that the condenser A 13 does not work and the condenser B 14 is put into operation, and the power controller 10 is adjusted according to the real-time power load so that the excess power of the power grid is consumed by the compressor 12, and the water pump A 30 and the switching valve A 23 are adjusted so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank 17 meets the temperature required for cooling, and the switching valve B 24 and the water pump E 34 are adjusted so that the temperature of the hot water flowing to the inter-seasonal high-temperature storage tank 19 meets the established requirements; in the heat valley-electricity peak period, the control valve C 27 and the water pump G 36 are closed so that the heat exchanger B 20 does not work, and other operation adjustment methods are the same as the heat peak-electricity peak period. Through the above operation method, the system can realize the flexible conversion of heat and electricity for heating during the winter electricity peak period, thereby achieving the purpose of promoting the consumption of new energy electricity by heating and heat storage.

[0019] In order to develop the energy storage-heat pump linked heat-electricity-cooling coordinated peak-shaving system more scientifically and effectively, the system is operated in the following manner during the winter heating season electricity off-peak period: close the return cooling valve 26, the cooling valve 25 and the water pump B 31 to make the cooling equipment and pipelines stop working, close the water pump J 35 and the control valve D 28 to make the energy storage auxiliary heating water supply pipeline stop working, close the control valve C 27 and the water pump G 36 to make the heat exchanger B 20 stop working, and control the hot water flow and temperature of the heating pipeline by adjusting the hot water supply pump 37, the heating valve 29 and the steam extraction valve 07 according to the heat load to meet the external heat load demand, and adjust the power controller 10 according to the power load required by the power grid to give priority to the power generation of the wind power generation equipment 09 and the photovoltaic power generation equipment 08, thereby promoting To absorb the new energy power, the power of the compressor 12 and the pressure and flow parameters of the throttle valve 15 are adjusted according to the external required heat supply and the load rate of the coal-fired power plant generator 05, so as to realize the electric heat conversion of the excess electricity, and the water pump A 30 and the switching valve A 23 are adjusted so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank 17 and the outlet temperature of the cold fluid side of the condenser A 13 reach the predetermined temperature respectively; during the heat peak-electricity valley period, the switching valve B 24, the control valve B 22 and the water pump E 34 are closed so that the condenser B 14 does not work; during the heat valley-electricity valley period, the switching valve B 24, the control valve B 22 and the water pump E 34 are opened and adjusted so that the evaporator B 14 works and the temperature of the hot water flowing into the inter-seasonal high-temperature storage tank 19 reaches the predetermined temperature. Through the above operation mode, the system can realize the flexible conversion of heat and electricity for heating during the winter electricity valley period, thereby achieving the purpose of promoting the absorption of new energy power through heating, heat storage and electric heat conversion.

[0020] In order to develop the energy storage-heat pump linked heat-electricity-cooling coordinated peak-shaving system more scientifically and effectively, the system is operated in the spring and autumn seasons according to the following method: close the cooling valve 26, the cooling valve 25 and the water pump B 31 to make the cooling pipes and equipment stop working, close the steam extraction valve 07, the hot water pump 37, the heating valve 29, the control valve C 27 and the water pump G 36 to make the heat exchanger B 20 and the heat exchanger A 06 stop working, and close the control valve A 21 to make the condenser A 13 stop working; during the peak electricity period, close the switching valve B 24, the control valve B 22, the switching valve A 23, the water pump A 30, and the water pump E 34 to make the heat pump system stop working, adjust the power controller 10 according to the power load required by the power grid to give priority to absorbing the power generated by the wind power generation equipment 09 and the photovoltaic power generation equipment 08 and close the circuit of the compressor 12, and adjust the power controller 10 according to the power load required by the power grid to give priority to absorbing the power generated by the wind power generation equipment 09 and the photovoltaic power generation equipment 08 and close the circuit of the compressor 12. By adjusting the water pump 35 and the control valve D28 to control the hot water flow to the turbine heat recovery component 04, the auxiliary heating of the turbine condensate by the external heat storage is realized, thereby increasing the power generation of the system; during the low-voltage period, the water pump 35 and the control valve D28 are closed to cut off the auxiliary heating path of the turbine condensate by the external heat storage, and the switching valve B24, the control valve B22, the switching valve A23, the water pump A30, and the water pump E34 are opened and adjusted to open the working pipeline of the heat pump system, and the power controller 10 is adjusted according to the power load required by the power grid to give priority to the power generation of the wind power generation equipment 09 and the photovoltaic power generation equipment 08 and adjust the circuit of the compressor 12, and the pressure and flow parameters of the throttle valve 15 are adjusted so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank 17 and the temperature of the hot water flowing to the inter-seasonal high-temperature storage tank 19 reach the predetermined values ​​respectively. Through the above operation mode, the conversion of excess electricity in spring and autumn into heat and cold energy can be realized, and heat and cold storage can be used instead of electricity storage, which greatly reduces costs while efficiently absorbing new energy electricity.

[0021] In order to develop the energy storage-heat pump linked heat-electricity-cooling coordinated peak-shaving system more scientifically and effectively, the system operates in the following manner during the summer cooling period: close the steam extraction valve 07, the hot water pump 37, the heating valve 29, the control valve C 27, the water pump G 36, and the control valve A 21, so that the heating equipment and pipelines do not work, open and adjust the return cooling valve 26, the cooling valve 25, the water pump B 31 and the water pump D 33 so that the cold water flow in the cooling pipeline meets the needs of the outside world and the cooling return water is completely recovered in the normal temperature storage tank 18; during the peak electricity period, close the switching valve B 24, the control valve B 22, the switching valve A 23, the water pump A 30, and the water pump E 34, so that the electric heat pump system does not work, and adjust the power controller 10 according to the power load required by the power grid to give priority to absorbing the power generated by the wind power generation equipment 09 and the photovoltaic power generation equipment 08. The electric power is reduced and the circuit of the compressor 12 is closed. According to the electric load, the water pump 35 and the control valve 28 are adjusted to control the hot water flow to the steam turbine heat recovery component 04; during the low electricity period, the water pump 35 and the control valve 28 are closed, thereby cutting off the channel for the auxiliary heating of the turbine condensate by the external heat storage, and the switching valve 24, the control valve 22, the switching valve 23, the water pump 30, and the water pump 34 are opened and adjusted to open the working pipeline of the electric heat pump system, and the power controller 10 is adjusted according to the electric load required by the power grid to preferentially consume the power generated by the wind power generation equipment 09 and the photovoltaic power generation equipment 08 and adjust the circuit of the compressor 12, and adjust the pressure and flow parameters of the throttle valve 15, so that the cold water temperature flowing to the inter-seasonal low-temperature storage tank 17 and the hot water temperature flowing to the inter-seasonal high-temperature storage tank 19 reach the predetermined values. Through the above operation mode, the system can realize the flexible conversion of cold and electricity during the summer cooling period, thereby achieving the purpose of promoting the consumption of new energy power through cold supply, cold storage, and electric cold conversion.

Claims

1. A heat-electricity-cooling coordinated peak-shaving system with energy storage-heat pump linkage, characterized in that: The invention comprises a steam side of a boiler (01), a steam turbine unit (02), a condenser (03), a steam turbine heat recovery component (04), and a water supply side of the boiler (01) which are connected in sequence; an exhaust pipe of an intermediate pressure cylinder of the steam turbine unit (02) is connected in sequence to a steam extraction valve (07), a hot fluid side of a heat exchanger A (06), and a deaerator of the steam turbine heat recovery component (04); a heat supply return water pipe is connected in sequence to a cold fluid side of a heat exchanger B (20), a cold fluid side of a condenser A (13), a cold fluid side of a heat exchanger A (06), a hot water supply pump (37), a heating valve (29), and a heating pipe; The water pipeline is connected in sequence to the cooling valve (26), water pump D (33), normal temperature storage tank (18), water pump C (32), switching valve A (23), the hot fluid side of the evaporator (16), water pump A (30), the inter-seasonal low temperature storage tank (17), the cooling valve (25), water pump B (31), and the cooling pipeline; the pipeline between water pump C (32) and switching valve A (23) is also connected in sequence to the switching valve B (24), the cold fluid side of condenser B (14), water pump E (34), the inter-seasonal high temperature storage tank (19), control valve C (27), heat exchanger B (20) hot fluid side, water pump G (36), cooling valve (26), cooling return pipe; the pipe between the inter-seasonal high temperature storage tank (19) and the control valve C (27) is also connected in sequence to the water pump F (35), the control valve D (28), the turbine heat recovery component (04) intermediate wall auxiliary feed water heater, cooling valve (26), cooling return pipe; the compressor (12) outlet pipe is connected in sequence to the condenser A (13) hot fluid side, the control valve A (21), the throttle valve (15), the evaporator (16) cold fluid side, and the compressor (12) inlet pipe The outlet pipeline of the compressor (12) is also connected in sequence to the hot fluid side of the condenser B (14), the control valve B (22), the throttle valve (15), and the cold fluid side of the evaporator (16); the steam turbine unit (02) is connected to the coal-fired power station generator (05) through a mechanical shaft; the coal-fired power station generator (05), the wind power generation equipment (09), and the photovoltaic power generation equipment (08) are respectively connected to the three inlets A, B, and C of the power controller (10) through circuits; the two outlets A and B of the power controller (10) are respectively connected to the power grid (11) and the compressor (12) through circuits.

2. The method for operating the energy storage-heat pump-linked heat-electricity-cold coordinated peak-shaving system during the peak electricity period in the winter heating season as described in claim 1, characterized in that: Close the cooling valve (26), the cooling valve (25) and the water pump B (31); during the peak heat-peak period, according to the power load, adjust the water pump F (35) and the control valve D (28) to control the hot water flow to the steam turbine heat recovery component (04); according to the heat load, adjust the hot water supply pump (37) and the heating valve (29) to control the hot water flow in the heating pipeline; according to the heat load, adjust the steam extraction valve (07), the control valve C (27) and the water pump G (36) to control the steam turbine unit (02) extraction volume and the hot fluid side flow through the heat exchanger B (20); close the control valve A (21) and open The control valve B (22) is used to adjust the power controller (10) according to the real-time power load so that the excess power of the power grid can be consumed by the compressor (12). The water pump A (30) and the switching valve A (23) are adjusted so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank (17) meets the temperature required for cooling. The switching valve B (24) and the water pump E (34) are adjusted so that the temperature of the hot water flowing to the inter-seasonal high-temperature storage tank (19) meets the established requirements. During the period of thermal trough and power peak, the control valve C (27) and the water pump G (36) are closed so that the heat exchanger B (20) does not work. Other operation adjustment methods are the same as those during the period of thermal peak and power peak.

3. The method for operating the energy storage-heat pump-linked heat-electricity-cold coordinated peak-shaving system in the winter heating season during the electricity trough period as described in claim 1, characterized in that: The return cooling valve (26), the cooling valve (25) and the water pump B (31) are closed, the water pump F (35) and the control valve D (28) are closed, the control valve C (27) and the water pump G (36) are closed to make the heat exchanger B (20) inoperative, the hot water flow and temperature of the heating pipeline are controlled by adjusting the hot water supply pump (37), the heating valve (29) and the steam extraction valve (07) according to the heat load, the power controller (10) is adjusted according to the power load required by the power grid to give priority to the power generation of the wind power generation equipment (09) and the photovoltaic power generation equipment (08), and the compressor (05) is adjusted according to the external required heat supply and the load rate of the coal-fired power station generator (05). 12) and the pressure and flow parameters of the throttle valve (15), and adjust the water pump A (30) and the switching valve A (23) so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank (17) and the outlet temperature of the cold fluid side of the condenser A (13) reach the predetermined temperatures respectively; during the heat peak-electricity valley period, close the switching valve B (24), control valve B (22) and the water pump E (34) so ​​that the condenser B (14) does not work; during the heat valley-electricity valley period, open and adjust the switching valve B (24), control valve B (22) and the water pump E (34) so ​​that the temperature of the hot water flowing into the inter-seasonal high-temperature storage tank (19) reaches the predetermined temperature.

4. The method for operating the energy storage-heat pump-linked heat-electricity-cooling coordinated peak-shaving system in spring and autumn as described in claim 1, characterized in that: The cooling valve (26), the cooling valve (25) and the water pump B (31) are closed, the steam extraction valve (07), the hot water pump (37), the heating valve (29), the control valve C (27) and the water pump G (36) are closed, so that the heat exchanger B (20) and the heat exchanger A (06) are not working, and the control valve A (21) is closed so that the condenser A (13) is not working; during the peak period of electricity, the switching valve B (24), the control valve B (22), the switching valve A (23), the water pump A (30) and the water pump E (34) are closed, and the power controller (10) is adjusted according to the power load required by the power grid to give priority to the power generation of the wind power generation equipment (09) and the photovoltaic power generation equipment (08) and close the circuit of the compressor (12), and the power load is adjusted according to the power load. The hot water flow to the steam turbine heat recovery component (04) is controlled by adjusting the water pump (35) and the control valve (28); during the off-peak period, the water pump (35) and the control valve (28) are closed, the switching valve (24), the control valve (22), the switching valve (23), the water pump (30), and the water pump (34) are opened and adjusted, and the power controller (10) is adjusted according to the power load required by the power grid to give priority to absorbing the power generation of the wind power generation equipment (09) and the photovoltaic power generation equipment (08) and adjust the circuit of the compressor (12), and adjust the pressure and flow parameters of the throttle valve (15) so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank (17) and the temperature of the hot water flowing to the inter-seasonal high-temperature storage tank (19) reach the predetermined values.

5. The method for operating the energy storage-heat pump-linked heat-electricity-cooling coordinated peak-shaving system in the summer cooling period as described in claim 1 is characterized by: The steam extraction valve (07), the hot water pump (37), the heating valve (29), the control valve C (27), the water pump G (36), and the control valve A (21) are closed; the return cooling valve (26), the cooling valve (25), the water pump B (31), and the water pump D (33) are opened and adjusted so that the cold water flow in the cooling pipeline meets the external demand and the cooling return water is completely recovered in the normal temperature storage tank (18); during the peak electricity period, the switching valve B (24), the control valve B (22), the switching valve A (23), the water pump A (30), and the water pump E (34) are closed; according to the power load required by the power grid, the power controller (10) is adjusted to give priority to the power generation of the wind power generation equipment (09) and the photovoltaic power generation equipment (08) and close the circuit of the compressor (12); According to the power load, the flow of hot water to the steam turbine heat recovery component (04) is controlled by adjusting the water pump (35) and the control valve (28); during the off-peak period, the water pump (35) and the control valve (28) are closed, and the switching valve (24), the control valve (22), the switching valve (23), the water pump (30), and the water pump (34) are opened and adjusted. According to the power load required by the power grid, the power controller (10) is adjusted to preferentially absorb the power generation of the wind power generation equipment (09) and the photovoltaic power generation equipment (08), and the circuit of the compressor (12) is adjusted, and the pressure and flow parameters of the throttle valve (15) are adjusted so that the temperature of the cold water flowing to the inter-seasonal low-temperature storage tank (17) and the temperature of the hot water flowing to the inter-seasonal high-temperature storage tank (19) respectively reach predetermined values.

Images