CN115523559A - Ice-cold thermoelectric energy supply system, winter heating method and summer refrigerating method - Google Patents

Abstract

The application discloses an ice-cold thermoelectric energy supply system, a winter heating method and a summer refrigerating method, and solves the problem that a thermoelectric cooling combined supply system is low in energy utilization efficiency. The ice-cold thermoelectric energy supply system comprises a first power generation device, an absorption type ice-making heat supply unit, a cross-season cold-heat combined storage device, a heat exchanger, a water supply pipeline and a water return pipeline, wherein media flow through the water supply pipeline and the water return pipeline; the high-temperature flue gas generated by the first power generation device is input into the absorption type ice-making heat supply unit to carry out heat exchange, the absorption type ice-making heat supply unit transfers heat energy/cold energy to the seasonal cold-hot combined storage device, the seasonal cold-hot combined storage device transfers the heat energy/cold energy to the heat exchanger, the water supply pipeline and the water return pipeline are both connected with the heat exchanger, and the heat exchanger outputs the heat energy/cold energy outwards through the water supply pipeline. The cold and hot antithetical couplet of season stores up the device through setting up, can realize the storage of heat energy, cold energy and stride the use of season, has energy saving and emission reduction, reduces carbon emission, reduces running cost's characteristics.

Description

An ice-cold thermoelectric energy supply system, a heating method in winter, and a cooling method in summer

technical field

The application relates to the technical field of urban energy, and in particular to an ice-cooling thermoelectric energy supply system, a heating method in winter, and a cooling method in summer.

Background technique

The combined heat, power and cooling system can provide users with heat, electricity, and cold energy. It can be used for heating in winter and cooling in summer. Under the double carbon target, how to reduce the energy consumption and carbon emissions of heating and cooling systems under the condition of economic feasibility has become an urgent problem to be solved for the development of the industry.

There are some problems in the traditional combined heat, power and cooling system:

Problem 1. The initial investment of the system is high and the utilization hours are short. The investment in power generation equipment of this small combined heat, power and cooling system is relatively large, resulting in poor overall economy of the system;

The second problem is that the energy utilization efficiency of the conventional combined heat, power and cooling system needs to be improved. The temperature of the exhaust gas after the combustion of the gas in the system is still high, about 100°C or higher, and the waste heat in the flue gas has not been fully utilized. In some The waste heat utilization of flue gas is adopted in the combined heat, power and cooling system, but the problem is that these conventional systems can only use part of the waste heat of the flue gas in winter heating conditions. In non-heating seasons such as summer, the exhaust gas temperature of the system remains Very high, there is no good technology or method to recover low-temperature flue gas waste heat in summer;

Question 3. When the conventional combined heat, power, and cooling system operates in summer, the system uses the high-temperature flue gas waste heat discharged from the generator to drive the lithium bromide absorption refrigerator for cooling. The cooling COP is lower. Compared with conventional electric refrigeration, Under the condition of combined cooling and power supply, it is not energy-saving compared with the separate production of cooling and electricity;

Question 4: The system produces only three products: heat, electricity, and cooling. When faced with more demands, it cannot meet the needs. For example, the system sometimes needs to produce ice for use in cold storage and cold chains.

Contents of the invention

In order to solve the above-mentioned problems in the prior art, the purpose of this application is to provide an ice-cooling thermoelectric energy supply system, a winter heating method, and a summer cooling method, which can realize the storage and cross-seasonal use of thermal energy and cold energy, and have energy saving and emission reduction. The characteristics of reducing carbon emissions and reducing operating costs.

In order to achieve the above-mentioned technical purpose, the application adopts the following technical solutions:

The first aspect of the present application provides an ice-cooling thermoelectric energy supply system, including a first power generation device, an absorption ice-making heating unit, a cross-season cooling and heating storage device, a heat exchanger, a water supply pipeline, and a return water pipeline. There is a medium flowing in the pipeline and the return water pipeline;

The high-temperature flue gas generated by the first power generation device is input into the absorption ice-making heating unit for heat exchange, and the absorption ice-making heating unit transfers heat/cold energy to the inter-season cooling and heating storage device, The inter-season cooling and heating storage device transfers heat/cold energy to the heat exchanger, the water supply pipeline and the return water pipeline are both connected to the heat exchanger, and the heat exchanger passes the water supply The pipeline outputs heat/cold energy to the outside.

Optionally, the cross-season cooling and heating storage device includes a first inlet and outlet and a second inlet and outlet, the heat exchanger includes a first inlet, a first outlet, a second inlet, and a second outlet, and the absorption system The ice heating unit also includes a second inlet and a second outlet;

The first inlet and outlet are respectively connected to the second inlet and the second outlet, and the second inlet and outlet are respectively connected to the second outlet and the second inlet;

The first inlet is connected to the return water pipeline, and the first outlet is connected to the water supply pipeline.

Optionally, a first electric refrigerator is also included, the first electric refrigerator includes a first inlet, a first outlet, a second inlet, and a second outlet, and the first power generation device includes a fuel inlet and a flue gas outlet, The absorption ice-making heating unit includes a first inlet, a first outlet, a third inlet, and a third outlet;

The fuel enters the first power generation device from the fuel inlet, and the generated high-temperature flue gas is discharged from the flue gas outlet, and the flue gas outlet is connected to the third inlet;

The first inlet is connected to the return water pipeline, the first outlet is connected to the water supply pipeline, the second inlet is connected to the first outlet, and the second outlet is connected to the first inlet.

Optionally, it also includes a high-temperature flue gas and water heat exchange device, the high-temperature flue gas and water heat exchange device includes a first inlet, a first outlet, a second inlet, and a second outlet, the first inlet is connected to the In the water return pipeline, the first inlet and outlet are connected to the water supply pipeline, and the second inlet is connected to the third outlet.

Optionally, it also includes a low-temperature flue gas-water heat exchange device and an electric heat pump, the low-temperature flue gas-water heat exchange device includes a first inlet, a first outlet, a second inlet, and a second outlet, and the electric heat pump includes First entrance, first exit, second entrance, second exit;

The first inlet is connected to the return water pipeline, the first outlet is connected to the water supply pipeline, the second inlet is connected to the first outlet, and the second outlet is connected to the first inlet;

The second inlet is connected to the second outlet, and the second outlet is connected to the atmosphere.

Optionally, it also includes a second electric refrigerator, the second electric refrigerator includes a first inlet, a first outlet, a second inlet, and a second outlet, the first inlet is connected to the return water pipeline, and the The first outlet is connected to the water supply pipeline, the second inlet is connected to the second outlet, and the second outlet is connected to the first inlet and outlet;

A straight line is connected between the second inlet and the second outlet, and a straight line is connected between the second inlet and the second outlet.

Optionally, a third electric refrigerator is also included, the third electric refrigerator includes a first inlet, a first outlet, a second inlet, and a second outlet, the first inlet is connected to the second outlet, the The first outlet is connected to the second inlet, the second inlet is connected to the return water pipeline, and the second outlet is connected to the water supply pipeline;

The first inlet and outlet are respectively connected to the first inlet and the first inlet at the same time, and the second inlet and outlet are respectively connected to the first outlet and the first outlet at the same time.

Optionally, the first inlet and outlet are provided with a seventh valve, and the second inlet is provided with a first valve;

A ninth valve is provided on the path connecting the first inlet and outlet to the second inlet, and a sixth valve is arranged on the path connecting the first inlet and outlet to the second outlet;

An eighth valve is arranged on the path connecting the second inlet and outlet to the second outlet, and a fifth valve is arranged on the path connecting the second inlet and outlet to the second inlet;

A second valve is arranged on the straight-through pipeline between the second inlet and the second outlet.

Optionally, the second inlet is provided with a third valve;

The sixth valve is also located on the path connecting the first inlet and outlet to the second outlet;

The fifth valve is also located on the path connecting the second inlet and outlet to the second inlet;

A fourth valve is arranged on the straight-through pipeline between the second inlet and the second outlet.

Optionally, the second inlet is provided with a fourteenth valve, and the second outlet is provided with a thirteenth valve;

A fifteenth valve is provided on the path connecting the first inlet and outlet to the first inlet and the first inlet, and a fifteenth valve is arranged on the path connecting the first outlet and the first outlet to the second inlet and outlet There is a tenth valve;

A twelfth valve is provided on a path connecting the first inlet to the return water pipeline, and an eleventh valve is provided on a path connecting the first outlet to the water supply pipeline.

Optionally, the first power generation device further includes a jacket hot water outlet, a cylinder jacket hot water inlet, an intercooler water outlet, and an intercooler water inlet, and the absorption ice-making heating unit further includes a fourth inlet, a fourth outlet , the jacket hot water outlet is connected to the fourth inlet, the cylinder jacket hot water inlet is connected to the fourth outlet, and the intercooler water outlet and the intercooler water inlet are connected to other heat exchangers.

Optionally, the first power generation device is a gas turbine, or a gas-steam combined cycle generator, or an internal combustion engine, or an external combustion engine, or a fuel cell;

The absorption ice-making heating unit is a smoke-driven type, or a mixed-driven type of flue gas and hot water, or a mixed-driven type of flue gas, hot water and electricity.

Optionally, including a plurality of inter-season cooling and heating storage devices connected in series or in parallel;

Alternatively, each of the cross-season cold and heat storage devices includes N small chambers, where N is a natural number ≥ 2, and the N small chambers are connected in parallel or in series.

Optionally, the heat exchanger is an ordinary heat exchanger, or a large temperature difference heat exchanger, or a second-type heat pump heat exchanger;

The low temperature flue gas and water heat exchange device is a solid wall heat exchanger, or a direct contact heat exchanger, or a spray tower.

The second aspect of the present application provides a winter heating method, which is implemented through the ice-cooled thermoelectric energy supply system described in any one of the above. The initial state before winter heating is: the inter-season cold and heat storage device is high-temperature hot water, the temperature is 90 ℃-95℃, all valves are closed;

Heating starts in winter, including:

Working condition 1: Heat exchanger heating mode;

The first valve, the fifth valve, the sixth valve, and the seventh valve are opened, and the high-temperature hot water enters the second inlet of the heat exchanger from the second inlet and outlet through the fifth valve and the first valve, flows out from the second outlet, and passes through the second inlet of the heat exchanger. The sixth valve and the seventh valve enter the first inlet and outlet;

The return water in the return water line enters the first inlet of the heat exchanger, and after being heated, it flows out from the first outlet and is sent to the water supply line to supply heat to the outside;

After the cross-season cold and heat fed storage device has released heat, the first valve, the fifth valve, the sixth valve and the seventh valve are all closed.

Optionally, also include:

Working condition 2: Simultaneous heating mode of the heat exchanger and the second electric refrigerator;

The first valve, the third valve, the fifth valve, the sixth valve, and the seventh valve are opened, and the high-temperature hot water enters the second inlet of the heat exchanger from the second inlet and outlet through the fifth valve and the first valve, and flows through the second outlet. Outflow, enter the second inlet through the third valve, flow out from the second outlet, enter the first inlet and outlet through the sixth valve and the seventh valve;

The return water in the return water line enters the first inlet of the heat exchanger, and after being heated, it flows out from the first outlet and is sent to the water supply line to supply heat to the outside;

The return water in the return water pipeline enters the first inlet of the second electric refrigerator, and after being heated, it flows out from the first outlet and enters the water supply pipeline to supply heat to the outside;

After the cross-season cold and heat fed storage device has released heat, the first valve, the third valve, the fifth valve, the sixth valve and the seventh valve are all closed.

Optionally, also include:

Working condition 3: The cross-season cooling and heating storage device is cold storage and the system is heating at the same time. The cross-season cooling and heating storage device starts to realize the cold storage function. Electric refrigerator, high temperature flue gas and water heat exchange device, electric heat pump for external heating;

In the cross-season cooling and heating joint storage device, there is low-temperature water, the temperature is 1°C-10°C, the seventh valve, the eighth valve, and the ninth valve are opened, and the low-temperature water enters the absorption type from the first inlet and outlet through the seventh valve and the ninth valve. The second inlet of the ice-making and heating unit, after being cooled, flows out from the second outlet, enters the second inlet and outlet through the eighth valve, and stores the cold water or ice slurry into the cross-season cooling and heating storage device;

At the same time, the first power generation device, the first electric refrigerator, the high-temperature flue gas and water heat exchange device, the low-temperature flue gas and water heat exchange device, and the electric heat pump are all in operation, and the return water of the return water pipeline enters the first electric refrigeration unit respectively. After being heated, the machine, the high-temperature flue gas and water heat exchange device, and the electric heat pump flow out into the water supply pipeline to supply heat to the outside.

Optionally, also include:

Working condition 4: The cross-season cooling and heating storage device includes N small rooms, where N is a natural number ≥ 2, and the N small rooms are connected in parallel. After any one of the small rooms releases heat, it will store cold, and at the same time, other small rooms will provide heat.

The third aspect of the present application provides a summer cooling method, which is implemented by the ice-cooled thermoelectric energy supply system described in any one of the above, and the initial state before the summer cooling is: ice slurry or ice-water mixture in the cross-season cooling and heating storage device , the temperature is 0°C, all valves are closed;

Cooling starts in summer, including:

Working condition 1: heat exchanger cooling mode;

The first valve, the fifth valve, the sixth valve, and the seventh valve are opened, and the ice slurry or cold water enters the second inlet of the heat exchanger from the second inlet and outlet through the fifth valve and the first valve, flows out from the second outlet, and passes through the second inlet of the heat exchanger. The sixth valve and the seventh valve enter the first inlet and outlet;

The return water of the return water line enters the first inlet of the heat exchanger, after being cooled, it flows out from the first outlet and enters the water supply line for external cooling;

After the cross-season cooling and heating federation storage device has finished cooling, the first valve, the fifth valve, the sixth valve and the seventh valve are all closed.

Optionally, also include:

Working condition 2: Simultaneous cooling mode of the heat exchanger and the second electric refrigerator;

The first valve, the third valve, the fifth valve, the sixth valve, and the seventh valve are opened, and the ice slurry or cold water enters the second inlet of the heat exchanger from the second inlet and outlet through the fifth valve and the first valve. The outlet flows out, enters the second inlet through the third valve, flows out from the second outlet, and enters the first inlet and outlet through the sixth valve and the seventh valve;

The return water of the return water line enters the first inlet of the heat exchanger, after being cooled, it flows out from the first outlet and enters the water supply line for external cooling;

The return water in the return water pipeline enters the first inlet of the second electric refrigerator, and after being cooled, it flows out from the first outlet and enters the water supply pipeline for external cooling;

After the cross-season cold and heat fed storage device has finished cooling, the first valve, the third valve, the fifth valve, the sixth valve and the seventh valve are all closed.

Optionally, also include:

Working condition 3: In the heat storage mode of the cross-seasonal cooling and heating storage device and the system cooling mode, the cross-seasonal cooling and heating storage device starts to realize the heat storage function, and the absorption ice-making heating unit starts to supplement the heat for the cross-seasonal cooling and heating storage device, and at the same time The third electric refrigerator provides external cooling;

The seventh valve, the tenth valve, and the fifteenth valve are opened, and the water enters the first inlet of the absorption ice-making heating unit from the first inlet and outlet through the seventh valve and the fifteenth valve, and after being heated, water flows through the first outlet outflow, enter the first inlet and outlet through the tenth valve;

Water enters the first inlet of the high-temperature flue gas and water heat exchange device through the seventh valve and the fifteenth valve from the first inlet and outlet, flows out from the first outlet after being heated, and enters the first inlet and outlet through the tenth valve;

The cold water in the absorption ice-making heating unit flows out from the second outlet, enters the first inlet of the third electric refrigerator, flows out from the first outlet, and enters the second inlet;

The return water of the return water pipeline enters the first inlet of the third electric refrigerator, and after being cooled, flows out from the first outlet and enters the water supply pipeline for external cooling;

After the heat storage of the cross-season cooling and heating joint storage device is completed, the seventh valve, the tenth valve, and the fifteenth valve are all closed.

Optionally, also include:

Working condition 4: In the heat storage mode of the cross-season cooling and heating storage device and the system cooling mode, the cross-season cooling and heating storage device starts to realize the heat storage function, and the absorption ice-making heating unit starts to supplement the heat for the cross-season cooling and heating storage device, and at the same time The first electric refrigerator or the second electric refrigerator supplies external cooling.

It can be seen from the above technical solutions that the present application provides an ice-cooled thermoelectric energy supply system, a heating method in winter, and a cooling method in summer, which have the following advantages:

This patent proposes a system of ice, cold, electricity and heat, which can produce four kinds of products.

The utilization hours of the system are greatly increased, and the problem of poor economy of the conventional combined heat, power and cooling system is overcome.

Under the same power generation installed capacity as the conventional combined heating, power and cooling system, the system can not only increase the heating capacity, but also increase the cooling capacity, and the heating and cooling capacity and the annual comprehensive energy efficiency have been greatly improved.

The high-temperature flue gas generated by the first power generation device can fully absorb the waste heat, and can realize the deep recovery of the waste heat of the flue gas in summer, improve the energy efficiency of the system, and save energy under the combined cooling and power supply conditions.

Heating and cooling can share a transmission and distribution pipe network, and the hot and cold are on the same network.

It has a daily peak shaving mode, which can carry out daily peak shaving for electricity throughout the year. Because the system has a cross-season cooling and heating storage device, it can store cold or heat in one of the small rooms within a day. When the power consumption peaks and the power grid is short of power, the system uses its own cold storage and heat storage for cooling and heating. Peak power; when the power consumption is low, the grid encourages users to use more electricity, and the system can use more electricity to generate cold and heat and store them in a small room of the cross-season cold and heat storage device.

Through the configuration and operation of the system, the coordination of four networks of cold, heat, gas and electricity has been realized.

Cold and heat can also be stored in spring and autumn at the same time, cold is released in summer, and heat is released in winter.

Some of the ice produced can also be sold directly for use in the cold chain.

Description of drawings

FIG. 1 is a schematic structural diagram of an ice-cooled thermoelectric energy supply system according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an ice-cooled thermoelectric energy supply system according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of an ice-cooled thermoelectric energy supply system according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of an ice-cooling thermoelectric energy supply system according to an embodiment of the present application.

Description of reference signs: 1, the first valve; 2, the second valve; 3, the third valve; 4, the fourth valve; 5, the fifth valve; 6, the sixth valve; 7, the seventh valve; 8, the fourth valve Eighth valve; 9. Ninth valve; 10. Tenth valve; 11. Eleventh valve; 12. Twelfth valve; 13. Thirteenth valve; 14. Fourteenth valve;

20. First power generation device; 21. Fuel inlet; 22. Flue gas outlet; 23. Jacket hot water outlet; 24. Cylinder jacket hot water inlet; 25. Intercooler water outlet; 26. Intercooler water inlet;

30. Absorption ice-making heating unit; 31. First entrance; 32. First exit; 33. Second entrance; 34. Second exit; 35. Third entrance; 36. Third exit; 37. Fourth Entrance; 38. The fourth exit;

40. Cross-season cooling and heating fed storage device; 41. The first import and export; 42. The second import and export;

50. The first electric refrigerator; 51. The first entrance; 52. The first exit; 53. The second entrance; 54. The second exit;

60. Heat exchanger; 61. First inlet; 62. First outlet; 63. Second inlet; 64. Second outlet;

70. High temperature flue gas and water heat exchange device; 71. First inlet; 72. First outlet; 73. Second inlet; 74. Second outlet;

80. Low temperature flue gas and water heat exchange device; 81. First entrance; 82. First exit; 83. Second entrance; 84. Second exit;

90. Electric heat pump; 91. First entrance; 92. First exit; 93. Second entrance; 94. Second exit;

100. The second electric refrigerator; 101. The first entrance; 102. The first exit; 103. The second entrance; 104. The second exit;

110. The third electric refrigerator; 111. The first entrance; 112. The first exit; 113. The second entrance; 114. The second exit;

200. Water supply pipeline;

300, return water pipeline.

detailed description

The core idea of this application is:

This application aims at the problems of high initial investment, short utilization hours, poor overall economy, system energy utilization efficiency that needs to be further improved in the traditional combined heat, power and cooling system. In order to solve the problems of low energy efficiency and single system output (only heat, electricity, and cold), a new system is proposed.

While the system is generating electricity,

Winter: ① Utilize the waste heat of flue gas or hot water or electricity to drive the ice-making heating unit, extract the phase-change heat from the water deeply, and use the phase-change heat used for driving energy and the phase-change heat extracted from the water for heating, greatly increasing the supply At the same time, free ice or cold water is obtained, and the obtained ice or cold water is stored in a cross-season cooling and heating storage device (this time is cold storage), and the cold storage is used until the summer for cooling and then used for air conditioning For cooling. ② Utilize the heat in the cross-season cooling and heating storage device (the waste heat stored in summer and the heat dissipated from the room air conditioner) for heating at the same time, and after the heat is supplied, it is used to store ice or cold produced by the ice-making heating unit.

Summer: ①Release the cooling capacity stored in the cross-season cooling and heating storage device. When the stored cooling capacity is not enough to meet the total cooling capacity, supplement conventional electric cooling to meet the total demand. ② After the cooling capacity of the cooling and heating storage device is released, use flue gas, hot water waste heat or equipment in the electric drive system to absorb the heat from the room air conditioner, and store the heat in the cooling and heating storage device (this is heat storage), The stored heat is stored until the heating period for heating, while the refrigeration equipment in the system is used for cooling.

The flue gas, hot water waste heat in the system, or electric-driven ice-making heaters, electric refrigerators, and electric heat pumps are all put into use in winter and summer conditions, and the utilization rate of equipment is high; The energy efficiency is extremely high, it can be used in winter and summer, and the number of hours of use is long. The high-temperature flue gas generated by the first power generation device can fully absorb the waste heat, and can realize the deep recovery of the waste heat of the flue gas in summer, improve the energy efficiency of the system, and save energy under the combined cooling and power supply conditions. Under the same power generation installed capacity as the conventional combined heating, power and cooling system, the system can not only increase the heating capacity, but also increase the cooling capacity, and the heating and cooling capacity and the annual comprehensive energy efficiency have been greatly improved. The system can also produce a fourth product - ice.

In addition to the above-mentioned system, the core idea of this application also includes the connotation of a peak-shaving mode, including the peak-shaving function aimed at reducing the initial investment and the peak-shaving function aimed at reducing operating costs.

First of all, the peak shaving function aimed at reducing the initial investment specifically refers to:

In winter, part of the system’s heat supply is to use the waste heat to drive the absorption ice-making heat supply machine to provide deep heat; the other part is the heat stored in the inter-seasonal cooling and heating storage device. The peak load of heating reduces the installation and supporting costs of heating sources. If gas-fired boilers are used for conventional heating, it saves the investment of gas boilers, supporting gas source-gas network-gas pressure regulating station and other infrastructure costs (heat and gas synergy); If the production or electric heat pump is used, it saves the investment of combined heat and power and electric heat pump, and the cost of a set of infrastructure such as supporting power supply-grid-transformation (heat and electricity coordination);

In summer, the system uses the cold top peak cooling load stored by the cross-season cooling and heating storage device, which greatly reduces the installation and supporting costs of cold sources (saving the cost of a set of infrastructure such as electric refrigerators, supporting power sources-grid-transformation, etc. ). (cold and electric synergy).

At the same time, the heating and cooling of the system can share a transmission and distribution pipe network, and the heating and cooling are on the same network. Finally, the four networks of cold, heat, gas and electricity were realized.

Secondly, the peak-shaving function aimed at reducing operating costs includes two ideas: seasonal peak-shaving function and daily peak-shaving function.

Seasonal peak shaving function:

In winter, in terms of total heat supply, a part of the system uses the interseasonal cooling and heating combined storage device to store the waste heat stored in summer and the heat dissipated from the room air conditioner to provide heat, which is equivalent to reducing the total heat supply in winter. In the operation mode, the peak heat load (used for heating in severe cold seasons) of the stored hot roof heating is equivalent to reducing the peak heat supply. The severe cold period requires a lot of heat, and the heat at this time is high-value heat. When compared with gas heating, it is equivalent to saving the most expensive natural gas in the severe cold period, peaking for gas, and realizing the synergy of heat and gas. Looking to the future, the power grid will be short of electricity in winter in the future. We reduce the heat supply through cross-seasonal heat release, so that the combined heat and power generation can generate more power, adjust the seasonal peak of the power grid, and realize the synergy of heat and power. (The peak of heating is cut by itself, the peak of gas is shaving, and the peak of electricity is shaving.)

In summer, the grid's air-conditioning power consumption causes seasonal peaks in power consumption. In terms of total cooling supply, a part of the system is free of charge in winter, which is equivalent to reducing the total cooling supply in summer, which also reduces the total power consumption of air conditioners. Cooling load (cooling in the hottest month), which is equivalent to reducing the peak cooling capacity. The hottest month in summer requires a large amount of cooling. The cooling at this time is high-value cooling. This cooling replaces conventional electric cooling, which saves cooling power consumption in the hottest month, that is, reduces the peak power consumption of air conditioners in summer. For the seasonal peak regulation of the power grid, realize the coordination of cooling and electricity. (The cooling peak is cut by itself, and the power peak is adjusted.)

Daily peak shaving function throughout the year: the system can perform daily peak shaving for electricity.

Because the system has a cross-season cooling and heating storage device, it can store cold or heat within a day. When the power consumption peaks, the power grid is short of power, and the system uses its own cold storage and heat storage for cooling and heating instead of peak power; When electricity consumption is low, the power grid encourages users to use more electricity, and the system can use more electricity to generate cold and heat and store them in inter-season cooling and heating storage devices. (Peak shaving day for electricity throughout the year)

The system can store cold and heat at the same time in spring and autumn, and release cold in summer and heat in winter.

In order to better understand the purpose, structure and function of the present application, the ice-cooling thermoelectric energy supply system and method of the present application will be further described in detail below in conjunction with the accompanying drawings.

Example 1

As shown in Figure 1, Embodiment 1 of the present application provides an ice-cooling thermoelectric energy supply system, which includes a first power generation device 20, an absorption ice-making heating unit 30, a cross-season cooling and heating storage device 40, a heat exchange Device 60, water supply pipeline 200, return water pipeline 300, water supply pipeline 200, return water pipeline 300 have medium flowing;

The medium is water when heating, and ice slurry or water when cooling. The water supply pipeline 200 and the return water pipeline 300 can be connected to the user's heating system and air conditioning system;

The high-temperature flue gas generated by the first power generation device 20 is input into the absorption ice-making heating unit 30 for heat exchange. The absorption ice-making heating unit 30 transfers the heat/cold energy to the cross-season cooling and heating storage device 40, and the cross-season cooling and heating The storage device 40 transfers heat/cold energy to the heat exchanger 60 , the water supply pipeline 200 and the return water pipeline 300 are connected to the heat exchanger 60 , and the heat exchanger 60 outputs heat/cold energy through the water supply pipeline 200 .

In one embodiment, the cross-season cooling and heating storage device 40 includes a first inlet and outlet 41 and a second inlet and outlet 42, and the heat exchanger 60 includes a first inlet 61, a first outlet 62, a second inlet 63, and a second outlet 64 , the absorption ice-making heating unit 30 also includes a second inlet 33 and a second outlet 34;

The first inlet and outlet 41 are respectively connected to the second inlet 33 and the second outlet 64, and the second inlet and outlet 42 are respectively connected to the second outlet 34 and the second inlet 63;

The first inlet 61 is connected to the water return pipeline 300 , and the first outlet 62 is connected to the water supply pipeline 200 .

In one embodiment, the ice-cooling thermoelectric energy supply system further includes a first electric refrigerator 50, the first electric refrigerator 50 includes a first inlet 51, a first outlet 52, a second inlet 53, and a second outlet 54, and the first electricity generating The device 20 includes a fuel inlet 21 and a flue gas outlet 22, and the absorption ice-making heating unit 30 includes a first inlet 31, a first outlet 32, a third inlet 35, and a third outlet 36;

Fuel enters the first power generation device 20 from the fuel inlet 21, and the generated high-temperature flue gas is discharged from the flue gas outlet 22, and the flue gas outlet 22 is connected to the third inlet 35;

The first inlet 51 is connected to the return water pipeline 300 , the first outlet 52 is connected to the water supply pipeline 200 , the second inlet 53 is connected to the first outlet 32 , and the second outlet 54 is connected to the first inlet 31 .

In one embodiment, the ice cooling thermoelectric energy supply system further includes a high temperature flue gas and water heat exchange device 70, and the high temperature flue gas and water heat exchange device 70 includes a first inlet 71, a first outlet 72, a second inlet 73, a second The outlet 74 , the first inlet 71 is connected to the return water pipeline 300 , the first outlet 72 is connected to the water supply pipeline 200 , and the second inlet 73 is connected to the third outlet 36 .

In one embodiment, the ice cooling thermoelectric energy supply system further includes a low temperature flue gas and water heat exchange device 80 and an electric heat pump 90, and the low temperature flue gas and water heat exchange device 80 includes a first inlet 81, a first outlet 82, a second inlet 83. The second outlet 84. The electric heat pump 90 includes a first inlet 91, a first outlet 92, a second inlet 93, and a second outlet 94;

The first inlet 91 is connected to the return water pipeline 300, the first outlet 92 is connected to the water supply pipeline 200, the second inlet 93 is connected to the first outlet 82, and the second outlet 94 is connected to the first inlet 81;

The second inlet 83 is connected to the second outlet 74, and the second outlet 84 is connected to the atmosphere.

In one embodiment, as shown in FIG. 2 , the ice-cooling thermoelectric energy supply system further includes a second electric refrigerator 100, and the second electric refrigerator 100 includes a first inlet 101, a first outlet 102, a second inlet 103, a second The outlet 104 , the first inlet 101 is connected to the return water pipeline 300 , the first outlet 102 is connected to the water supply pipeline 200 , the second inlet 103 is connected to the second outlet 64 , and the second outlet 104 is connected to the first inlet and outlet 41 .

In one embodiment, a straight line is connected between the second inlet 63 and the second outlet 64 , and a straight line is connected between the second inlet 103 and the second outlet 104 . Through this setting, the heat exchanger 60 and the second electric refrigerator 100 can be selectively operated, and the high-temperature hot water, ice slurry or cold water output from the second inlet and outlet 42 does not enter the heat exchanger 60 but only enters the second electric refrigerator. refrigerating machine 100 , or only entering the heat exchanger 60 without entering the second electric refrigerating machine 100 .

The function of the second electric refrigerator 100 is: in winter, the temperature of the hot water is lowered step by step, and the heat is taken away by the electric refrigerator for heating, and the water cooled by the second electric refrigerator 100 is then refrigerated Or then return to the cross-season cooling and heating storage device 40; in summer, the second electric refrigerator 100 switches between the chilled water and the cooling water side, recovers the heat dissipated in the room in summer, raises the return water temperature of the heating network, and sends it to the heat source end.

In one embodiment, as shown in FIG. 3 , the ice-cooling thermoelectric energy supply system further includes a third electric refrigerator 110, and the third electric refrigerator 110 includes a first inlet 111, a first outlet 112, a second inlet 113, a second Outlet 114, the first inlet 111 is connected to the second outlet 34, the first outlet 112 is connected to the second inlet 33, the second inlet 113 is connected to the return water pipeline 300, and the second outlet 114 is connected to the water supply pipeline 200;

The first inlet and outlet 41 are respectively connected to the first inlet 31 and the first inlet 71 at the same time, and the second inlet and outlet 42 are respectively connected to the first outlet 32 and the first outlet 72 at the same time.

In one embodiment, the first inlet and outlet 41 is provided with the seventh valve 7, and the second inlet 63 is provided with the first valve 1;

A ninth valve 9 is provided on the path connecting the first inlet and outlet 41 to the second inlet 33, and a sixth valve 6 is arranged on the path connecting the first inlet and outlet 41 to the second outlet 64;

An eighth valve 8 is arranged on the path connecting the second inlet and outlet 42 to the second outlet 34, and a fifth valve 5 is arranged on the path connecting the second inlet and outlet 42 to the second inlet 63;

A second valve 2 is provided on the straight line between the second inlet 63 and the second outlet 64 . When the second valve 2 is opened, the high-temperature hot water, ice slurry or cold water output from the second inlet and outlet 42 does not enter the heat exchanger 60; when the second valve 2 is closed, the high-temperature hot water output from the second inlet and outlet 42 , ice slurry or cold water can enter the heat exchanger 60.

In one embodiment, the second inlet 103 is provided with a third valve 3;

The sixth valve 6 is also located on the path connecting the first inlet and outlet 41 to the second outlet 104;

The fifth valve 5 is also located on the path connecting the second inlet and outlet 42 to the second inlet 103;

A fourth valve 4 is provided on the straight line between the second inlet 103 and the second outlet 104 . When the fourth valve 4 is opened, the high-temperature hot water, ice slurry or cold water output from the second inlet and outlet 42 does not enter the second electric refrigerator 100; when the fourth valve 4 is closed, the high-temperature water output from the second inlet and outlet 42 Hot water, ice slurry or cold water can enter the second electric refrigerator 100 .

In one embodiment, the second inlet 53 is provided with a fourteenth valve 14, and the second outlet 54 is provided with a thirteenth valve 13;

A fifteenth valve (15) is provided on the path where the first inlet and outlet 41 connects to the first inlet 31 and the first inlet 71, and a fifteenth valve (15) is arranged on the path where the second inlet and outlet 42 connects to the first outlet 32 and the first outlet 72. valve 10;

A twelfth valve 12 is provided on the path connecting the first inlet 71 to the return water pipeline 300 , and an eleventh valve 11 is provided on the path connecting the first outlet 72 to the water supply pipeline 200 .

Above-mentioned each valve can adopt electromagnetic valve, is convenient to carry out automatic control.

In one embodiment, as shown in FIG. 4 , the first power generation device 20 also includes a cylinder jacket hot water outlet 23, a cylinder jacket hot water inlet 24, an intercooler water outlet 25, and an intercooler water inlet 26. The absorption ice-making heating unit 30 also includes a fourth inlet 37 and a fourth outlet 38, the jacket hot water outlet 23 is connected to the fourth inlet 37, the jacket hot water inlet 24 is connected to the fourth outlet 38, and the intercooler water outlet 25 and the intercooler water inlet 26 exchange heat with other device connection.

The heat from the jacket hot water can also be used to drive ice production. The intercooled water is used to cool the lubricating oil in the first power generation device 20, and the intercooled water discharged from the intercooled water outlet 25 has a higher temperature and can be input into other heat exchangers for external heat supply.

In one embodiment, the first power generation device 20 is a gas turbine, or a gas-steam combined cycle generator, or an internal combustion engine, or an external combustion engine, or a fuel cell.

In one embodiment, the absorption ice-making heating unit 30 is a smoke-driven type, or a mixed-driven type of flue gas and hot water, or a mixed-driven type of flue gas, hot water and electricity. The absorption ice-making heating unit 30 may not make ice, but only produce cold water.

In one embodiment, the heat exchanger 60 is a common heat exchanger, or a large temperature difference heat exchanger, or a type II heat pump heat exchanger.

In one embodiment, the low temperature flue gas and water heat exchange device 80 is a solid wall heat exchanger, or a direct contact heat exchanger, or a spray tower.

In one embodiment: it includes a plurality of cross-season cooling and heating storage devices 40 connected in series or in parallel;

Alternatively, the cross-season combined cold and heat storage device 40 includes N small chambers, where N is a natural number ≥ 2, and the N small chambers are connected in parallel, any one of the small chambers will store cold after releasing heat, and other small chambers will supply heat at the same time.

The cross-season cooling and heating storage device 40 is not limited to the 2 inlets and outlets shown in the drawings, and the number of inlets and outlets can be adjusted. As long as the functions are the same as those of this application, they all belong to the protection scope of this patent, for example, there can be more than 2 inlets and outlets.

The inter-season cooling and heating joint storage device 40 can solve the problem that the ice slurry in the large ice storage tank is stratified to form an ice-rich layer and cannot transport the ice slurry after inter-seasonal ice storage, and can realize the uniform and continuous transportation of the ice slurry in the large ice storage tank. Such a structural setting can be adopted: including an ice storage tank, an ice delivery pipe and a water return pipe. The ice storage tank includes an ice slurry area and a resting area. Connect the ice slurry area and the static area; also include: agitator and ice taker, the agitator is set in the ice slurry area, and the ice taker is set in the upper part of the static area; the agitator mixes solid ice and water into ice slurry, And to adjust the concentration of ice slurry, the ice collector is used to transport the solid ice in the static area to the ice slurry area.

Each of the components mentioned above, for example: the first power generation device 20, the absorption ice-making heating unit 30, the first electric refrigerator 50, the heat exchanger 60, the high-temperature flue gas and water heat exchange device 70, the low-temperature flue gas For the water heat exchange device 80 , the electric heat pump 90 , the first electric refrigerator 100 , and the third electric refrigerator 110 , the internal structures of these devices can refer to the prior art, and will not be described in detail here. Each interface on these devices communicates with single or multiple functional components inside the device to achieve different functions such as heating, cooling, transportation, etc. of the medium. Those skilled in the art can fully understand it after knowing the specific structure of the device. It works.

Example 2

This embodiment provides a winter heating method, which is implemented through the ice-cold thermoelectric energy supply system described in Embodiment 1. The functions realized by this mode in winter are: ① Utilize the heat in the inter-seasonal cooling and heating storage device 40 for power supply at the same time Heat, after the heat is supplied, is used to store the cold produced by the absorption ice-making heating unit 30. ②Absorptive ice-making heating unit 30 is used to extract phase change heat deeply from water, use waste heat of flue gas for driving or electricity and phase change heat extracted from water for heating, and obtain free ice slurry at the same time Or cold water, the obtained ice slurry or cold water is stored in the cross-season cooling and heating joint storage device 40 (at this time, cold storage), and the cold storage is used for air conditioning and cooling until summer cooling.

As shown in Figure 1, the initial state before heating in winter is: the cross-season cold and heat storage device 40 is filled with high-temperature hot water, the temperature is 90°C-95°C, and all valves are closed;

Heating starts in winter, including:

Working condition 1: heat supply mode of heat exchanger 60;

The first valve 1, the fifth valve 5, the sixth valve 6, and the seventh valve 7 are opened, and high-temperature hot water enters the second inlet 63 of the heat exchanger 60 through the fifth valve 5 and the first valve 1 from the second inlet and outlet 42 , flows out from the second outlet 64, and enters the first inlet and outlet 41 through the sixth valve 6 and the seventh valve 7;

The return water in the return water pipeline 300 enters the first inlet 61 of the heat exchanger 60, and after being heated, flows out from the first outlet 62 and enters the water supply pipeline 200 to supply heat to the outside;

After the inter-season cold and heat storage device 40 finishes releasing heat, the first valve 1, the fifth valve 5, the sixth valve 6, and the seventh valve 7 are all closed.

In one embodiment, as shown in Figure 2, also includes:

Working condition 2: the heat exchanger 60 and the second electric refrigerator 100 provide heat at the same time;

The first valve 1, the third valve 3, the fifth valve 5, the sixth valve 6, and the seventh valve 7 are opened, and high-temperature hot water enters the heat exchanger 60 from the second inlet and outlet 42 through the fifth valve 5 and the first valve 1 The second inlet 63 flows out from the second outlet 64, enters the second inlet 103 through the third valve 3, flows out from the second outlet 104, and enters the first inlet and outlet 41 through the sixth valve 6 and the seventh valve 7;

The return water in the return water pipeline 300 enters the first inlet 61 of the heat exchanger 60, and after being heated, flows out from the first outlet 62 and enters the water supply pipeline 200 to supply heat to the outside;

The return water from the return water pipeline 300 enters the first inlet 101 of the second electric refrigerator 100, and after being heated, flows out from the first outlet 102 and enters the water supply pipeline 200 to supply heat to the outside;

After the inter-season cold and heat storage device 40 has released heat, the first valve 1 , the third valve 3 , the fifth valve 5 , the sixth valve 6 and the seventh valve 7 are all closed.

The second valve 2 and the fourth valve 4 can control and change the serial and parallel states between the heat exchanger 60 and the second electric refrigerator 100 . When both the second valve 2 and the fourth valve 4 are closed, the heat exchanger 60 and the second electric refrigerator 100 are connected in series; when the second valve 2 and the fourth valve 4 are both opened, the heat exchanger 60, the second The electric refrigerators 100 are connected in parallel.

In one embodiment, also includes:

Working condition 3: The cross-season cooling and heating joint storage device 40 stores cold and the system heats at the same time, the cross-season cooling and heating joint storage device 40 starts to realize the cold storage function, and the absorption ice-making heating unit 30 starts to supplement the cooling for the cross-season cooling and heating joint storage device 40 , while the first electric refrigerator 50, the high-temperature flue gas and water heat exchange device 70, and the electric heat pump 90 supply heat to the outside;

The cross-season cooling and heating joint storage device 40 is low-temperature water, the temperature is 1°C-10°C, the seventh valve 7, the eighth valve 8, and the ninth valve 9 are opened, and the low-temperature water passes through the seventh valve 7 and the first inlet and outlet 41. The ninth valve 9 enters the second inlet 33 of the absorption ice-making heating unit 30, and after being cooled, it flows out from the second outlet 34, and enters the second inlet and outlet 42 through the eighth valve 8, and the cold water or ice slurry is stored in the trans- Seasonal cooling and heating storage device 40; the second outlet 34 can also be directly connected to the outside world, and the ice produced can be directly taken away for other occasions, such as for cold chain sales;

At the same time, the first power generation device 20, the first electric refrigerator 50, the high-temperature flue gas and water heat exchange device 70, the low-temperature flue gas and water heat exchange device 80, and the electric heat pump 90 are all in the running state, and the return water of the return water pipeline 300 They respectively enter the first electric refrigerator 50, the high-temperature flue gas and water heat exchange device 70, and the electric heat pump 90. After being heated, they respectively flow out into the water supply pipeline 200 to supply heat to the outside.

In one embodiment, also includes:

Working condition 4: The cross-season cold and heat storage device 40 includes N small rooms, where N is a natural number ≥ 2. The N small rooms are connected in parallel. After any one of the small rooms has released heat, it will store cold, and other small rooms will supply heat at the same time.

The reduction of initial investment is reflected in:

At this time, the heat supply of the system has two parts. One part is to use the absorption ice-making heating unit 30 to provide heat in depth; The peak heating load of 40 cross-season cooling and heating joint storage devices reduces the installation and supporting costs of heating sources. If gas-fired boilers are used for conventional heating, it saves the investment of gas boilers, supporting gas source-gas network-gas pressure regulating station and other infrastructure costs (heat and gas synergy); If the production or electric heat pump is used, it saves the investment of combined heat and power and electric heat pump, and the cost of a set of infrastructure such as supporting power supply-grid-transformation (heat and electricity coordination).

The seasonal peak shaving function is reflected in:

In winter, in terms of total heat supply, a part of the system is heat supplied by the inter-season cooling and heat storage device 40 stored in summer from room air conditioners, which is equivalent to reducing the total heat supply in winter. In the operation mode, the peak heat load (used for heating in severe cold seasons) of the stored hot roof heating is equivalent to reducing the peak heat supply. The severe cold period requires a lot of heat, and the heat at this time is high-value heat. When compared with gas heating, it is equivalent to saving the most expensive natural gas in the severe cold period, peaking for gas, and realizing the synergy of heat and gas. Looking to the future, the power grid will be short of electricity in winter in the future. We reduce the heat supply through cross-seasonal heat release, so that the combined heat and power generation can generate more power, adjust the seasonal peak of the power grid, and realize the synergy of heat and power. (The peak of heating is cut by itself, the peak of gas is shaving, and the peak of electricity is shaving.)

Example 3

This embodiment provides a cooling method in summer, which is implemented through the ice-cooling thermoelectric energy supply system described in Embodiment 1. The water supply of the heating network realizes the function of sending cold water, and the return water of the heating network realizes the function of sending the return water from the user back to the system. ①Release the cooling capacity stored in the cross-season cooling and heating storage device 40. This part of the cooling capacity is obtained free of charge in winter and used for air conditioning cooling. First, it can greatly reduce the total energy consumption of cooling, and second, it also reduces the energy consumption due to this. Part of the cooling will increase the power generation installed capacity of the power grid, the investment in power transmission and distribution, and the investment in electric refrigeration equipment. When the stored cooling is not enough to meet the total cooling capacity, conventional electric cooling can be supplemented to meet the total demand. ② After the cooling capacity of the inter-seasonal cooling and heating storage device 40 is released, the absorption ice-making heating unit 30 absorbs the heat from the room air conditioner, and stores all the heat in the inter-seasonal cooling and heating storage device 40 (heat storage at this time), The stored heat is stored until the heating period for heating.

As shown in Figure 1, the initial state before the summer cooling is: ice slurry or ice-water mixture in the cross-season cooling and heating storage device 40, the temperature is 0 °C, and all valves are closed;

Cooling starts in summer, including:

Working condition 1: cooling mode of heat exchanger 60;

The first valve 1, the fifth valve 5, the sixth valve 6, and the seventh valve 7 are opened, and the ice slurry or cold water enters the second inlet of the heat exchanger 60 through the fifth valve 5 and the first valve 1 from the second inlet and outlet 42 63, flows out from the second outlet 64, and enters the first inlet and outlet 41 through the sixth valve 6 and the seventh valve 7;

The return water from the return water line 300 enters the first inlet 61 of the heat exchanger 60, and after being cooled, flows out from the first outlet 62 and enters the water supply line 200 for external cooling;

After the cross-season cooling and heating joint storage device 40 has finished cooling, the first valve 1, the fifth valve 5, the sixth valve 6, and the seventh valve 7 are all closed.

In one embodiment, as shown in Figure 2, also includes:

Working condition 2: the cooling mode of the heat exchanger 60 and the second electric refrigerator 100 at the same time;

The first valve 1, the third valve 3, the fifth valve 5, the sixth valve 6, and the seventh valve 7 are opened, and the ice slurry or cold water enters the heat exchanger from the second inlet and outlet 42 through the fifth valve 5 and the first valve 1 The second inlet 63 of 60 flows out from the second outlet 64, enters the second inlet 103 through the third valve 3, flows out from the second outlet 104, and enters the first inlet and outlet 41 through the sixth valve 6 and the seventh valve 7;

The return water from the return water line 300 enters the first inlet 61 of the heat exchanger 60, and after being cooled, flows out from the first outlet 62 and enters the water supply line 200 for external cooling;

The return water in the return water pipeline 300 enters the first inlet 101 of the second electric refrigerator 100, and after being cooled, flows out from the first outlet 102 and enters the water supply pipeline 200 for external cooling;

After the cross-season cooling and heating joint storage device 40 has finished cooling, the first valve 1, the third valve 3, the fifth valve 5, the sixth valve 6, and the seventh valve 7 are all closed.

In one embodiment, as shown in Figure 3, also includes:

Working condition 3: The cross-season cooling and heating joint storage device 40 stores heat and the system cools at the same time, the cross-season cooling and heating joint storage device 40 starts to realize the heat storage function, and the absorption ice-making heating unit 30 starts to perform the cross-season cooling and heating joint storage device 40 Supplementing heat, while the third electric refrigerator 110 supplies cooling to the outside;

The seventh valve 7, the tenth valve 10, and the fifteenth valve 15 are opened, and water enters the first inlet 31 of the absorption ice-making heating unit 30 through the seventh valve 7 and the fifteenth valve 15 from the first inlet and outlet 41, After being heated, it flows out from the first outlet 32 and enters the first inlet and outlet 42 through the tenth valve 10;

Water enters the first inlet 71 of the high-temperature flue gas and water heat exchange device 70 through the seventh valve 7 and the fifteenth valve 15 from the first inlet and outlet 41, and flows out from the first outlet 72 after being heated, and passes through the tenth valve 10 Enter the first entrance and exit 42;

The cold water in the absorption ice-making heating unit 30 flows out from the second outlet 34, enters the first inlet 111 of the third electric refrigerator 110, flows out from the first outlet 112, and enters the second inlet 33;

The return water from the return water pipeline 300 enters the first inlet 113 of the third electric refrigerator 110, and after being cooled, flows out from the first outlet 114 and enters the water supply pipeline 200 for external cooling;

After the inter-season cold and heat storage device 40 completes heat storage, the seventh valve 7, the tenth valve 10, and the fifteenth valve 15 are all closed.

When the system is cooling externally, the low-temperature flue gas and water heat exchange device 80 and the electric heat pump 90 are both in shutdown state, so the second outlet 74 of the high-temperature flue gas and water heat exchange device 70 can be directly connected to the atmosphere, and the flue gas flows from the second The outlet 74 is directly emptied without going through the low-temperature flue gas and water heat exchange device 80 .

In one embodiment, also includes:

Working condition 4: The cross-season cooling and heating joint storage device 40 stores heat and the system cools at the same time, the cross-season cooling and heating joint storage device 40 starts to realize the heat storage function, and the absorption ice-making heating unit 30 starts to perform the cross-seasonal cooling and heating joint storage device 40 supplementary heat, and at the same time, the first electric refrigerator 50 or the second electric refrigerator 100 supplies cooling to the outside.

At this time, the third electric refrigerator 110 may not be provided, and a separate cold energy transfer path needs to be set between the first electric refrigerator 50, the second electric refrigerator 100 and the absorption ice-making heating unit 30, and reference may be made to the first The cold energy transfer path between the three-electric refrigerator 110 and the absorption ice-making heating unit 30 .

The reduction of initial investment is reflected in:

At this time, the cooling capacity of the system has two parts, one part is cooling by the absorption ice-making heating unit 30; The top-peak cooling load greatly reduces the installation and supporting costs of cold sources (saving the cost of a set of infrastructure such as electric refrigerators, supporting power supply-grid-transformation, etc.).

The seasonal peak shaving function is reflected in:

In summer, the grid's air-conditioning power consumption causes seasonal peaks in power consumption. In terms of total cooling supply, a part of the system is free of charge in winter, which is equivalent to reducing the total cooling supply in summer, which also reduces the total power consumption of air conditioners. Cooling load (cooling in the hottest month), which is equivalent to reducing the peak cooling capacity. The hottest month in summer requires a large amount of cooling. The cooling at this time is high-value cooling. This cooling replaces conventional electric cooling, which saves cooling power consumption in the hottest month, that is, reduces the peak power consumption of air conditioners in summer. For the seasonal peak regulation of the power grid, realize the coordination of cooling and electricity. (The cooling peak is cut by itself, and the power peak is adjusted.)

It should be noted that, unless otherwise specified, technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which this application belongs.

In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit it; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present application. All of them should be covered by the scope of the claims and description of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any manner. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (10)

1. An ice-cooling thermoelectric energy supply system, characterized in that it comprises a first power generation device (20), an absorption ice-making heating unit (30), a cross-season cooling and heating storage device (40), and a heat exchanger (60) , water supply pipeline (200), return water pipeline (300), described water supply pipeline (200), described return water pipeline (300) have medium in circulation; The high-temperature flue gas generated by the first power generation device (20) is input into the absorption ice-making heating unit (30) for heat exchange, and the absorption-type ice-making heating unit (30) transfers heat/cold energy to The inter-season cold and heat storage device (40), the cross-season cold and heat storage device (40) transfers heat/cold energy to the heat exchanger (60), the water supply pipeline (200), the The return water pipelines (300) are all connected to the heat exchanger (60), and the heat exchanger (60) outputs heat/cold energy to the outside through the water supply pipeline (200). 2. The ice-cooling heat and electricity energy supply system according to claim 1, characterized in that, the inter-season cooling and heating storage device (40) includes a first inlet and outlet (41) and a second inlet and outlet (42), and the exchange The heater (60) includes a first inlet (61), a first outlet (62), a second inlet (63), and a second outlet (64), and the absorption ice-making heating unit (30) also includes a second Entrance (33), second exit (34); The first inlet and outlet (41) are respectively connected to the second inlet (33) and the second outlet (64), and the second inlet and outlet (42) are respectively connected to the second outlet (34) , the second entrance (63); The first inlet (61) is connected to the return water pipeline (300), and the first outlet (62) is connected to the water supply pipeline (200). 3. The ice-cooling thermoelectric energy supply system according to claim 2, characterized in that it further comprises a first electric refrigerator (50), and the first electric refrigerator (50) includes a first inlet (51), a first outlet (52), second inlet (53), and second outlet (54), the first power generation device (20) includes a fuel inlet (21), a flue gas outlet (22), and the absorption ice-making heat supply The unit (30) comprises a first inlet (31), a first outlet (32), a third inlet (35), and a third outlet (36); Fuel enters the first power generation device (20) from the fuel inlet (21), and the generated high-temperature flue gas is discharged from the flue gas outlet (22), and the flue gas outlet (22) is connected to the second Three entrances (35); The first inlet (51) is connected to the return water pipeline (300), the first outlet (52) is connected to the water supply pipeline (200), and the second inlet (53) is connected to the first outlet (32), the second outlet (54) is connected to the first inlet (31). 4. The ice-cooled thermoelectric energy supply system according to claim 3, characterized in that it further comprises a high-temperature flue gas-water heat exchange device (70), and the high-temperature flue gas-water heat exchange device (70) includes a first inlet (71), the first outlet (72), the second inlet (73), the second outlet (74), the first inlet (71) is connected to the return water pipeline (300), the first inlet and outlet (72 ) is connected to the water supply pipeline (200), and the second inlet (73) is connected to the third outlet (36). 5. The ice-cooling thermoelectric energy supply system according to claim 4, characterized in that it also includes a low-temperature flue gas and water heat exchange device (80), an electric heat pump (90), and the low-temperature flue gas and water heat exchange device ( 80) includes a first inlet (81), a first outlet (82), a second inlet (83), and a second outlet (84), and the electric heat pump (90) includes a first inlet (91), a first outlet ( 92), the second entrance (93), the second exit (94); The first inlet (91) is connected to the return water pipeline (300), the first outlet (92) is connected to the water supply pipeline (200), and the second inlet (93) is connected to the first outlet (82), the second outlet (94) is connected to the first inlet (81); The second inlet (83) is connected to the second outlet (74), and the second outlet (84) is connected to the atmosphere. 6. The ice-cooling thermoelectric energy supply system according to claim 5, characterized in that it further comprises a second electric refrigerator (100), and the second electric refrigerator (100) includes a first inlet (101), a first outlet (102), second inlet (103), second outlet (104), the first inlet (101) is connected to the return water pipeline (300), and the first outlet (102) is connected to the water supply pipe Road (200), the second inlet (103) is connected to the second outlet (64), and the second outlet (104) is connected to the first inlet and outlet (41); A straight-through pipeline is connected between the second inlet (63) and the second outlet (64), and a straight-through pipeline is connected between the second inlet (103) and the second outlet (104). 7. The ice cooling thermoelectric energy supply system according to claim 6, further comprising a third electric refrigerator (110), the third electric refrigerator (110) comprising a first inlet (111), a first outlet (112), second inlet (113), second outlet (114), the first inlet (111) is connected to the second outlet (34), and the first outlet (112) is connected to the second an inlet (33), the second inlet (113) is connected to the return water pipeline (300), and the second outlet (114) is connected to the water supply pipeline (200); The first inlet and outlet (41) are respectively connected to the first inlet (31) and the first inlet (71) at the same time, and the second inlet and outlet (42) are respectively connected to the first outlet (32) , said first outlet (72). 8. The ice-cooling thermoelectric energy supply system according to claim 7, characterized in that, the first inlet and outlet (41) is provided with a seventh valve (7), and the second inlet (63) is provided with a first valve (1); A ninth valve (9) is provided on the path connecting the first inlet and outlet (41) to the second inlet (33), and the path connecting the first inlet and outlet (41) to the second outlet (64) A sixth valve (6) is arranged on the top; An eighth valve (8) is provided on the path connecting the second inlet and outlet (42) to the second outlet (34), and the path connecting the second inlet and outlet (42) to the second inlet (63) A fifth valve (5) is arranged on the top; A second valve (2) is provided on the straight-through pipeline between the second inlet (63) and the second outlet (64); The second inlet (103) is provided with a third valve (3); The sixth valve (6) is also located on the path connecting the first inlet and outlet (41) to the second outlet (104); The fifth valve (5) is also located on the path connecting the second inlet and outlet (42) to the second inlet (103); A fourth valve (4) is provided on the straight-through pipeline between the second inlet (103) and the second outlet (104); The second inlet (53) is provided with a fourteenth valve (14), and the second outlet (54) is provided with a thirteenth valve (13); The first inlet and outlet (41) is connected to the first inlet (31) and the path of the first inlet (71) is provided with a fifteenth valve (15), and the second inlet and outlet (42) is connected to A tenth valve (10) is arranged on the path of the first outlet (32) and the first outlet (72); A twelfth valve (12) is provided on the path connecting the first inlet (71) to the return water pipeline (300), and the first outlet (72) is connected to the path of the water supply pipeline (200) An eleventh valve (11) is provided. 9. A heating method in winter, characterized in that it is implemented by the ice-cooled thermoelectric energy supply system according to claim 8, and the initial state before the winter heating is: high-temperature hot water in the cross-season cooling and heating storage device (40), the temperature 90°C-95°C, all valves are closed; Heating starts in winter, including: Working condition one: the heat supply mode of the heat exchanger (60); The first valve (1), the fifth valve (5), the sixth valve (6), and the seventh valve (7) are opened, and the high-temperature hot water passes through the fifth valve (5) and the first valve (5) from the second inlet and outlet (42). The valve (1) enters the second inlet (63) of the heat exchanger (60), flows out from the second outlet (64), and enters the first inlet and outlet (41) through the sixth valve (6) and the seventh valve (7). ; The return water of the return water pipeline (300) enters the first inlet (61) of the heat exchanger (60), after being heated, flows out from the first outlet (62) and enters the water supply pipeline (200) to supply heat to the outside; After the cross-season cold and heat fed storage device (40) releases heat, the first valve (1), the fifth valve (5), the sixth valve (6) and the seventh valve (7) are all closed. 10. A summer refrigeration method, characterized in that, implemented by the ice-cooling thermoelectric energy supply system according to claim 8, the initial state before the summer cooling is: ice slurry or ice in the cross-season cooling and heating storage device (40) Water mixture, the temperature is 0°C, all valves are closed; Cooling starts in summer, including: Working condition 1: cooling mode of the heat exchanger (60); The first valve (1), the fifth valve (5), the sixth valve (6), and the seventh valve (7) are opened, and ice slurry or cold water passes through the fifth valve (5) and the second inlet and outlet (42) A valve (1) enters the second inlet (63) of the heat exchanger (60), flows out from the second outlet (64), and enters the first inlet and outlet (41) through the sixth valve (6) and the seventh valve (7). ); The return water of the return water pipeline (300) enters the first inlet (61) of the heat exchanger (60), after being cooled, flows out from the first outlet (62) and enters the water supply pipeline (200) for external cooling; After the cross-season cold and heat fed storage device (40) puts off the cold, the first valve (1), the fifth valve (5), the sixth valve (6), and the seventh valve (7) are all closed.

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