CN218993726U

CN218993726U - Heat storage absorption type refrigerating unit

Info

Publication number: CN218993726U
Application number: CN202221876271.XU
Authority: CN
Inventors: 王全龄; 王淼弘
Original assignee: Qinhuangdao Chang Pu Group Co ltd
Current assignee: Qinhuangdao Chang Pu Group Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2023-05-09
Anticipated expiration: 2032-07-19

Abstract

The utility model relates to the technical field of heat storage, in particular to a heat storage absorption type refrigerating unit. The heat storage absorption refrigerator comprises a heat storage device and an absorption refrigerator; and the heat output end of the heat storage device is connected with the heat input end of the absorption refrigerator. The super-generated wind power, the super-generated photoelectricity and the grid valley electricity are stored in the heat storage device in a heat mode, and the heat storage device is used as a heat source of the absorption refrigerator for the absorption refrigerator. The heat storage efficiency of the heat storage equipment reaches 96%, and compared with battery energy storage and air compressor energy storage and water pumping energy storage, the heat storage equipment has the advantages of safety, high efficiency, energy saving and low one-time investment.

Description

Heat storage absorption type refrigerating unit

Technical Field

The utility model relates to the technical field of heat storage, in particular to a heat storage absorption type refrigerating unit.

Background

Under the double-carbon target plan, wind power and photovoltaic power generation are expanded and developed, but the randomness of the wind power generation and the photovoltaic power generation is serious, the strength of the wind power generation depends on the magnitude of wind power, and the problems of incapacity of generating power due to small wind and excessive power generation due to large wind exist; the photovoltaic power generation completely depends on sunlight, the power generation capacity is increased suddenly in sunny days, and the power is completely lost in night and in overcast, rainy and snowy days, so that the impact on a power grid is very serious.

Therefore, the phenomena of wind and light abandoning of the power grid are increased, and the essential reason is caused by mismatching of the energy storage capacity of the power grid with the green generated energy of wind and photovoltaic. Accordingly, all countries in the world are developing layout energy storage devices.

Aiming at the problems, the existing energy storage has the following modes:

and (3) energy storage of a lithium battery: the lithium battery energy storage is low in investment and fast in construction, but the pollution of the production battery is serious, and the more serious pollution problem exists in scrapping and digestion. In addition, the explosion and combustion accidents of the lithium battery are continuous, and long-time energy storage is impossible. The pumped storage overcomes the disadvantages of battery energy storage, but has high investment, needs related reservoir geographic conditions and long construction period, and has direct influence on reservoir energy storage by drought and waterlogging.

Compressed air energy storage: the compressed air energy storage fills the defects of water pumping and energy storage, but the water pumping and the compressed air energy storage have the defects of low benefit. Because the efficiency of the water pump and the air compressor is 60-70%, most of electric energy is consumed on the water pump and the air compressor when the valley electricity is stored. The peak electricity period is opened, the water is discharged for power generation, compressed air is released for power generation, the efficiency of an engine used for the peak electricity period and the compressed air is 50-60%, and the electricity stored in the valley electricity is almost consumed. In other words, the valley electricity is utilized to pump water and store energy and the compressed air is utilized to store energy, the electric energy is completely consumed by charging and discharging, the economic value is not generated, and only the energy storage function is achieved.

In summary, the research and development of the energy storage technology and the product which can store energy for a long time, are safe and reliable, have low investment and have great economic benefit are all being strived for worldwide.

After the montreal protocol is signed, the world is limited and stops using the refrigerant (one of substances causing the greenhouse effect), and the lithium bromide absorption refrigerator in the prior art does not use the refrigerant, so that the lithium bromide absorption refrigerator is a very environment-friendly refrigerator. Since lithium bromide absorption refrigerators have three energy modes: steam, hot water, direct combustion, and energy utilization are not very high, and have been replaced by refrigerant-type compression cycle units in recent years.

Disclosure of Invention

The first object of the present utility model is to provide a heat storage absorption refrigeration unit, which can solve the problems of the existing electricity storage mode and the low energy utilization rate of the absorption refrigerant;

the utility model provides a heat storage absorption refrigerator, which comprises a heat storage device and an absorption refrigerator;

and the heat output end of the heat storage device is connected with the heat input end of the absorption refrigerator.

Preferably, the heat storage device comprises a phase change heat storage device or a sensible heat storage device;

The phase change heat storage device comprises a molten salt heat storage device or a metal phase change heat storage device;

the sensible heat storage device comprises a high-temperature refractory material or refractory brick heat storage device or a heat conducting oil heat storage device.

Preferably, the absorption refrigerator includes a lithium bromide absorption refrigerator, an ammonia absorption refrigerator, or a steam injection refrigerator.

Preferably, the heat storage device is a molten salt heat storage device, and the absorption refrigerator is a lithium bromide absorption refrigerator;

the molten salt heat storage device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt, a power supply, an electric heating device and a molten salt circulating pump;

the molten salt is configured in the molten salt heat storage inner shell, and the electric heating device is configured in the molten salt;

the lithium bromide absorption refrigerator comprises an upper cylinder and a lower cylinder;

the upper cylinder body comprises a condenser, a generator and lithium bromide solution; the lithium bromide solution is arranged in the upper cylinder, the generator is arranged in the lithium bromide solution, the condenser is arranged above the generator, and the water receiving disc is arranged below the condenser;

one end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with the molten salt, the other end of the molten salt circulating pump is connected with one end of the generator, and the other end of the generator is connected with the molten salt heat storage inner shell and communicated with the molten salt;

The lower cylinder comprises an evaporator, a refrigerant pump, a spraying device, a solution spraying device, an absorber, lithium bromide solution, a solution purifying pump, a solution spraying pump, a concentrated solution storage cylinder, concentrated solution, a concentrated solution drain pipe and a solution heat exchanger;

a water pan is arranged below the evaporator, the water pan is arranged above the absorber, the solution spraying device is arranged above the absorber, and the absorber is arranged above the lithium bromide solution;

one end of the refrigerant pump is connected with the water receiving disc, the other end of the refrigerant pump is connected with the spraying device, and the spraying device is arranged on the evaporator;

one end of the solution pump is connected with the lower end of the lower cylinder and is communicated with the lithium bromide solution, the other end of the solution pump is connected with the lower end of the upper cylinder through the primary side of the solution heat exchanger and is communicated with the lithium bromide solution, one end of the solution pump is connected with the lower end of the lower cylinder and is communicated with the lithium bromide solution, the other end of the solution pump is connected with the solution spraying device, one end of the secondary side of the solution heat exchanger is connected with the lower part of the upper cylinder and is communicated with the lithium bromide solution, and the other end of the secondary side of the solution heat exchanger is connected with the concentrated solution return cylinder and is communicated with the concentrated lithium bromide solution in the concentrated solution return cylinder.

Preferably, the heat storage device is a heat conduction oil heat storage device, and the absorption refrigerator is a lithium bromide absorption refrigerator;

the heat conducting oil heat storage device comprises a heat conducting oil heat storage outer shell, a heat conducting oil heat storage inner shell, heat conducting oil, a power supply, an electric heating device and a heat conducting oil circulating pump;

the heat conduction oil is arranged in the heat conduction oil heat storage inner shell, and the electric heating device is arranged in the heat conduction oil;

one end of the heat conducting oil circulating pump is connected with the heat conducting oil heat storage inner shell and is communicated with the heat conducting oil, the other end of the heat conducting oil circulating pump is connected with one end of a generator in the upper cylinder, and the other end of the generator is connected with the heat conducting oil heat storage inner shell and is communicated with the heat conducting oil.

Preferably, the heat storage device comprises a phase change heat storage device and a sensible heat storage device;

the absorption refrigerator comprises a lithium bromide absorption refrigerator;

the phase-change heat storage device comprises a molten salt heat storage device, wherein the molten salt heat storage device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt, a power supply, an electric heating device, a molten salt heat exchanger and a molten salt heat exchange circulating pump, and the molten salt heat exchanger is configured in the molten salt;

The sensible heat storage device also comprises a heat conducting oil heat storage device, wherein the heat conducting oil heat storage heat exchange device comprises a heat conducting oil heat storage heat exchange outer shell, a heat conducting oil heat storage heat exchange inner shell, heat conducting oil and a heat conducting oil output circulating pump, and the heat conducting oil is configured in the heat conducting oil heat storage heat exchange inner shell;

one end of the molten salt heat exchange circulating pump is connected with the heat conducting oil heat storage and exchange inner shell and is communicated with heat conducting oil, the other end of the molten salt heat exchange circulating pump is connected with one end of the molten salt heat exchanger, and the other end of the molten salt heat exchanger is connected with the heat conducting oil heat storage and exchange inner shell and is communicated with heat conducting oil;

one end of the heat conduction oil output circulating pump is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with heat conduction oil, the other end of the heat conduction oil output circulating pump is connected with one end of the generator, and the other end of the generator is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with heat conduction oil.

Preferably, the heat storage absorption refrigerator is provided with a two-stage molten salt heat storage device, a heat conduction oil heat storage and exchange device and an absorption lithium bromide refrigerator;

the first-stage molten salt heat storage device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt, a power supply, an electric heating device and a molten salt circulating pump;

The second-stage molten salt heat storage device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt, an electric heating device, a power supply, a molten salt heat exchanger and a molten salt heat exchange circulating pump;

the heat conduction oil heat storage and exchange device comprises a heat conduction oil heat storage and exchange outer shell, a heat conduction oil heat storage and exchange inner shell, heat conduction oil and a heat conduction oil output circulating pump;

one end of the molten salt circulating pump is connected with the inner shell and communicated with the molten salt, the other end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with the molten salt, and the molten salt heat storage inner shell is connected with the molten salt heat storage inner shell and communicated with two-stage molten salt;

one end of the molten salt heat exchange circulating pump is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil, the other end of the molten salt heat exchange circulating pump is connected with one end of the molten salt heat exchanger, and the other end of the molten salt heat exchanger is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil;

one end of the heat conduction oil heat exchange circulating pump is connected with the heat conduction oil heat storage heat exchange inner shell and is communicated with the heat conduction oil, the other end of the heat conduction oil heat exchange circulating pump is connected with one end of the generator, and the other end of the generator is connected with the heat conduction oil heat storage heat exchange inner shell and is communicated with the heat conduction oil.

Preferably, the heat storage absorption refrigerator is provided with a phase change heat storage device, a sensible heat storage device and a double-effect lithium bromide absorption refrigerator;

the sensible heat storage device comprises a heat conducting oil heat storage device, wherein the heat conducting oil heat storage heat exchange device comprises a heat conducting oil heat storage heat exchange outer shell, a heat conducting oil heat storage heat exchange inner shell, heat conducting oil and a heat conducting oil heat exchange circulating pump, and the heat conducting oil is configured in the heat conducting oil heat storage heat exchange inner shell;

the three-cylinder double-effect lithium bromide absorption refrigerator comprises a high-temperature generation cylinder, a low-temperature generation cylinder and a lower cylinder;

the high-temperature generating cylinder comprises a high-temperature generator, a high-temperature lithium bromide solution, a high-temperature heat exchanger, a high-temperature dilution liquid return port and a high-temperature solution heat exchanger;

the low-temperature generating cylinder comprises a condenser, a low-temperature lithium bromide solution, a low-temperature generator, a low-temperature dilution liquid return port and a low-temperature solution heat exchanger;

the lower cylinder comprises a spraying device, an evaporator, a refrigerant pump, a solution spraying device, an absorber, lithium bromide solution and a lithium bromide solution pump;

One end of the molten salt heat exchange circulating pump is connected with the heat conducting oil heat storage and exchange inner shell and is communicated with heat conducting oil, the other end of the molten salt heat exchange circulating pump is connected with one end of the molten salt heat exchanger, and the other end of the molten salt heat exchanger is connected with the heat conducting oil heat storage and exchange inner shell and is communicated with the heat conducting oil;

one end of the heat conduction oil heat exchange circulating pump is connected with the heat conduction oil heat storage heat exchange inner shell and is communicated with heat conduction oil, the other end of the heat conduction oil heat exchange circulating pump is connected with one end of the high-temperature generator, and the other end of the high-temperature generator is connected with the heat conduction oil heat storage heat exchange inner shell and is communicated with heat conduction oil;

one end of the lithium bromide solution pump is connected with the lower cylinder and is communicated with the lithium bromide solution, a first path of the other end of the lithium bromide solution pump is connected with the solution spraying device through the concentrated solution storage cylinder, a second path of the lithium bromide solution pump is connected with one end of the high-temperature heat exchanger through a first heat exchange side of the low-temperature solution heat exchanger, the other end of the high-temperature heat exchanger is connected with a low-temperature dilution liquid return port, and a third path of the lithium bromide solution pump is connected with the high-temperature dilution liquid return port through a second heat exchange side of the low-temperature solution heat exchanger.

Preferably, a fused salt heat storage steam device and a two-cylinder single-effect steam lithium bromide absorption refrigerator are configured;

the fused salt heat storage steam device comprises a fused salt heat storage outer shell, a fused salt heat storage inner shell, fused salt, a power supply, an electric heating device, a steam generating device, a water pump, a steam storage tank outer shell, a steam storage tank inner shell, steam and a valve;

one end of the water pump is connected with one end of the steam generating device, the other end of the water pump is connected with a water source interface, and the other end of the steam generating device is connected with the inner shell of the steam storage tank and communicated with steam;

one end of the valve is connected with the inner shell of the steam storage tank and is communicated with steam, the other end of the valve is connected with one end of the generator, and the other end of the generator is connected with condensate water.

Preferably, a two-stage heat storage steam device and a two-cylinder single-effect steam lithium bromide refrigerator are configured;

the two-stage heat storage steam device comprises a fused salt heat storage outer shell, a fused salt heat storage inner shell, fused salt, a power source and an electric heating device, wherein a fused salt circulating pump, the fused salt heat storage outer shell, the fused salt heat storage inner shell, fused salt, the power source, the electric heating device, a steam generating device, a water pump, a steam storage tank outer shell, a steam storage tank inner shell, steam and a valve;

One end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with the molten salt, the other end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with the molten salt, and the molten salt heat storage inner shell is connected with the molten salt heat storage inner shell and communicated with two-stage molten salt;

Preferably, a two-stage fused salt heat storage and conduction oil heat storage and exchange steam device and a steam double-effect lithium bromide refrigerator are configured;

the two-stage molten salt heat storage device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt, a power source and an electric heating device, wherein the molten salt circulating pump, the molten salt heat storage outer shell, the molten salt heat storage inner shell, the molten salt, the electric heating device, the power source, the molten salt heat exchanger and the molten salt heat exchange circulating pump;

The heat conduction oil heat storage and exchange steam device comprises a heat conduction oil heat storage and exchange steam outer shell, a heat conduction oil heat storage and exchange steam inner shell, heat conduction oil, a heat conduction oil steam generator, a water pump, a steam storage tank outer shell, a steam storage tank inner shell, steam and a valve;

the double-effect lithium bromide absorption refrigerator comprises a high-temperature generation cylinder, a low-temperature generation cylinder and a lower cylinder; the high-temperature generation cylinder body comprises a high-temperature generator and a high-temperature heat exchanger; the low-temperature generation cylinder comprises a low-temperature generator, a condenser, a lithium bromide solution pump, a high-temperature solution heat exchanger and a low-temperature solution heat exchanger;

one end of the molten salt heat exchange circulating pump is connected with the heat conduction oil heat storage and exchange steam inner shell and is communicated with heat conduction oil, the other end of the molten salt heat exchange circulating pump is connected with one end of the molten salt heat exchanger, and the other end of the molten salt heat exchanger is connected with the heat conduction oil heat storage and exchange steam inner shell and is communicated with heat conduction oil.

One end of the lithium bromide solution pump is connected with the lower cylinder and is communicated with lithium bromide dilute solution, the other end of the lithium bromide solution pump is divided into three paths for output, the first path is connected with the solution spraying device through the concentrated solution liquid return cylinder, the second path is connected with one end of the high-temperature heat exchanger through one side heat exchange end of the low-temperature solution heat exchanger, the other end of the high-temperature heat exchanger is communicated with the low-temperature dilution liquid return port of the low-temperature generation cylinder, the third path is connected with one end of the high-temperature heat exchanger through the other side heat exchange end of the low-temperature solution heat exchanger, and the other end of the high-temperature heat exchanger is connected with the diluted lithium bromide solution liquid outlet and is communicated with the high-temperature generation cylinder.

One end of the valve is connected with the inner shell of the steam storage tank and is communicated with steam, the other end of the valve is connected with one end of the high-temperature generator, and the other end of the high-temperature generator is connected with condensate water.

Preferably, a two-stage molten salt heat storage device, a heat conduction oil heat storage and exchange device and a direct-fired lithium bromide absorption refrigerator are configured;

the heat conduction oil heat storage and exchange device comprises a heat conduction oil heat storage and exchange outer shell, a heat conduction oil heat storage and exchange inner shell, heat conduction oil and a heat conduction oil heat exchange circulating pump;

the direct-fired lithium bromide absorption refrigerator is provided with a high-temperature generator and a high-temperature lithium bromide solution; the high-temperature generator is configured in the high-temperature lithium bromide solution in the original lithium bromide direct-fired furnace body, one end of the high-temperature generator is connected with the heat conduction oil heat storage and exchange inner shell through the heat conduction oil heat exchange circulating pump and is communicated with the heat conduction oil, and the other end of the high-temperature generator is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil.

Preferably, a two-stage molten salt heat storage device, a heat conduction oil heat storage and exchange device and a heating system are configured;

the heating system comprises a hot water heat exchange water tank outer box body, a hot water heat exchange water tank inner box body, hot water, a hot water heat exchanger, a heating and heat supply circulating pump, a radiator or a ground coil or a fan coil, and/or a domestic hot water heat exchanger and a shower nozzle;

one end of the hot water heat exchanger is connected with the heat conduction oil heat storage and exchange inner shell through the heat conduction oil output circulating pump and is communicated with the heat conduction oil, and the other end of the hot water heat exchanger is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil;

one end of the heating and heat supply circulating pump is connected with the inner box body of the hot water heat exchange water tank and is communicated with hot water, the other end of the heating and heat supply circulating pump is connected with one end of the radiator, the ground coil, the fan coil and/or the domestic hot water heat exchanger, the other end of the radiator, the ground coil, the fan coil and/or the domestic hot water heat exchanger is connected with the inner box body of the hot water heat exchange water tank and is communicated with hot water, and the shower nozzle is connected with a tap water interface through the domestic hot water heat exchanger.

Preferably, a single-phase power supply fused salt heat storage and conduction oil heat storage and exchange device, a lithium bromide absorption refrigerator and a heating system are configured;

The single-phase power supply molten salt heat storage and conduction oil heat storage heat exchange device comprises a single-phase power supply molten salt heat storage outer shell, a single-phase power supply molten salt heat storage inner shell, a single-phase power supply, an electric heating device, a molten salt pump, a molten salt output heat exchanger, a molten salt output heat exchange circulating pump, a conduction oil heat storage heat exchange outer shell, a conduction oil heat storage heat exchange inner shell, conduction oil, a conduction oil heat exchange circulating pump and a winter/summer conversion valve;

one end of the molten salt output heat exchanger is connected with the heat-conducting oil heat-storage heat-exchange inner shell and is communicated with heat-conducting oil, and the other end of the molten salt output heat exchanger is connected with the heat-conducting oil heat-storage heat-exchange inner shell and is communicated with heat-conducting oil;

one end of the heat conduction oil heat exchange circulating pump is connected with the heat conduction oil heat storage heat exchange inner shell and is communicated with heat conduction oil, the other end of the heat conduction oil heat exchange circulating pump is respectively connected with one end of the winter/summer switching valve, the other end of the winter/summer switching valve is connected with one end of the hot water heat exchanger, the other end of the winter/summer switching valve is connected with one end of the high-temperature generator, one end of the winter/summer switching valve is connected with the heat conduction oil heat storage heat exchange inner shell and is communicated with heat conduction oil, the other end of the winter/summer switching valve is connected with one end of the winter/summer switching valve, the other end of the winter/summer switching valve is connected with the other end of the high-temperature generator, and the other end of the winter/summer switching valve is also connected with the other end of the hot water heat exchanger.

Preferably, a high-temperature refractory material or refractory brick heat storage device, a two-stage fused salt heat-storage and heat-conduction oil heat storage and exchange device, a heat-conduction oil heat storage and exchange device and a lithium bromide refrigerator are arranged;

the high-temperature refractory material or refractory brick heat storage device comprises a refractory brick heat storage device, refractory bricks, a molten salt heat exchange device, a power supply, an electric heating device and a molten salt circulating pump;

the electric heating device is arranged in the refractory brick of the refractory brick heat storage device, and the molten salt heat exchange device is arranged in the refractory brick;

one end of the molten salt circulating pump is connected with one end of the molten salt heat exchange device, the other end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with molten salt, and the other end of the molten salt heat exchange device is connected with the molten salt heat storage inner shell and communicated with molten salt.

Preferably, the heat conducting oil heat storage device comprises an electromagnetic heat storage outer shell, an electromagnetic heat storage inner shell, an electromagnetic vacuum or/and high-temperature heat insulation material, an electromagnetic induction disc induction coil, an electromagnetic induction disc, a first coil joint, a second coil joint, a high-frequency power distribution control device, a ceramic heat insulation layer, an electromagnetic heat storage power supply, magnetic force lines, a first electromagnetic heat conducting oil output interface, a second electromagnetic heat conducting oil output interface and an electromagnetic induction coil of the electromagnetic heat storage inner shell;

The electromagnetic heat storage inner shell is arranged on the ceramic heat insulation layer, the electromagnetic induction plate is arranged below the ceramic heat insulation layer, the electromagnetic induction plate induction coil is arranged in the electromagnetic induction plate, the electromagnetic heat storage power supply supplies power to the high-frequency power distribution control device, the high-frequency power distribution control device supplies high-frequency power to the electromagnetic induction plate induction coil, the electromagnetic induction plate induction coil generates an electromagnetic field, and the magnetic force lines of the electromagnetic induction plate induction coil penetrate through the electromagnetic heat storage inner shell;

the electromagnetic induction coil of the electromagnetic heat storage inner shell is arranged outside the electromagnetic heat storage inner shell.

Preferably, a vacuum heat insulation or high-temperature heat insulation material or a vacuum heat insulation and high-temperature heat insulation material composite double heat insulation structure is arranged between the molten salt heat storage outer shell and the molten salt heat storage inner shell.

Preferably, a vacuum heat insulation or high-temperature heat insulation material or a vacuum heat insulation and high-temperature heat insulation material composite double heat insulation structure is arranged between the heat conduction oil heat storage and exchange outer shell and the heat conduction oil heat storage and exchange inner shell of the heat conduction oil heat storage and exchange device.

The beneficial effects are that:

according to the method, the super-generated wind power, the super-generated photoelectricity and the grid valley electricity are stored in the heat storage device in a heat mode, and the heat storage device is used as a heat source of the absorption refrigerator and is used by the absorption refrigerator. The heat storage efficiency of the heat storage equipment reaches 96%, and compared with battery energy storage and air compressor energy storage and water pumping energy storage, the heat storage equipment has the advantages of safety, high efficiency, energy saving and low one-time investment. The super-generated wind power, the super-generated light power and the grid valley power are stored in a thermal form in summer by utilizing the combination of the heat storage equipment and the absorption refrigerator and are used for refrigerating and air conditioning in summer; the heat storage in winter is used for heating; the spring and autumn festival provides domestic hot water. The all-weather energy storage operation can be realized, the energy storage is manufactured into a product with high economic value to be directly sold, and the serious electric energy loss and waste caused by the electricity regeneration after the charge and discharge type energy storage, the water pumping and storage and the compression and storage are overcome.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a heat storage absorption refrigeration unit according to the present utility model;

fig. 2 is a schematic structural diagram of a phase change heat storage device according to the present utility model, wherein the heat storage device shown in fig. 2-1 includes a phase change heat storage device or a sensible heat storage device, and the phase change heat storage device shown in fig. 2-2 includes a molten salt heat storage device or a phase change heat storage device;

FIG. 3 is a schematic diagram of the sensible heat storage apparatus of the present utility model;

FIG. 4 is a schematic diagram of an absorption chiller according to the present utility model;

FIG. 5 is an embodiment of a molten salt heat storage lithium bromide absorption refrigerator of the present utility model;

FIG. 6 is an example of a heat transfer oil heat storage and exchange lithium bromide absorption refrigerator according to the utility model;

FIG. 7 is an embodiment of a molten salt heat storage and conduction oil heat storage heat exchange lithium bromide absorption refrigerator according to the utility model;

FIG. 8 is an embodiment of a two-stage molten salt heat storage and conduction oil heat storage heat exchange lithium bromide absorption refrigerator according to the utility model;

FIG. 9 is an embodiment of a three-cylinder double-effect lithium bromide absorption refrigerator for heat storage and heat exchange by molten salt and heat conducting oil according to the utility model;

FIG. 10 is an example of a fused salt heat storage type vapor lithium bromide absorption refrigerator according to the present utility model;

FIG. 11 is an example of a two-stage molten salt heat storage type vapor lithium bromide absorption refrigerator according to the present utility model;

FIG. 12 is an example of a two-stage molten salt and conduction oil heat storage and exchange type steam lithium bromide absorption refrigerator according to the utility model;

FIG. 13 is an example of a two-stage molten salt heat storage and conduction oil heat storage heat exchange type direct-fired lithium bromide absorption refrigerator according to the utility model;

FIG. 14 is an embodiment of a two-stage molten salt heat storage and conduction oil heat storage heat exchange type heating system of the utility model;

FIG. 15 is an example of a molten salt heat storage and conduction oil heat storage heat exchange type lithium bromide absorption refrigeration and heating system according to the utility model;

FIG. 16 is a schematic illustration of a refractory brick heat storage and fused salt heat storage heat transfer and conduction oil heat storage heat transfer type lithium bromide absorption refrigeration embodiment of the utility model;

FIG. 17 is a schematic structural diagram of an electromagnetic eddy current heating conduction oil heat storage device according to an embodiment of the present utility model, wherein FIG. 17-1 is a schematic structural diagram of the electromagnetic eddy current heating conduction oil heat storage device, FIG. 17-2 is a schematic structural diagram of an electromagnetic induction plate, and FIG. 17-3 is a schematic working state diagram of the electromagnetic eddy current heating conduction oil heat storage device;

17-4 are schematic structural views of an electromagnetic induction coil wound on a cylinder of an electromagnetic heat storage inner shell;

FIG. 18 is a schematic diagram showing an embodiment of the molten salt heat storage device according to the present utility model, wherein the heat insulation of FIG. 18-1 is performed by using a vacuum state in which the space between the molten salt heat storage outer case and the molten salt heat storage inner case is evacuated to a vacuum heat insulation state. FIG. 18-2 is a view of filling a high temperature insulating material between a molten salt heat storage outer shell and a molten salt heat storage inner shell; FIG. 18-3 shows that a high-temperature heat insulation material is filled between a molten salt heat storage outer shell and a molten salt heat storage inner shell, and is pumped into a vacuum heat insulation state; fig. 18-4 shows a single-phase electric power supply fused salt heat storage and exchange heat insulation structure;

fig. 19 is a schematic diagram of an embodiment of a heat-conducting oil heat-storing device according to the present utility model, wherein in fig. 19-1, a vacuum state is formed between the heat-conducting oil heat-storing and heat-exchanging outer casing and the heat-conducting oil heat-storing and heat-exchanging inner casing. Fig. 19-2 illustrates a state in which a high-temperature heat insulation material is filled between a heat-conducting oil heat-storage heat-exchange outer shell and a heat-conducting oil heat-storage heat-exchange inner shell, and is pumped into a vacuum heat insulation state; fig. 19-3 illustrates a high-temperature heat-insulating material filled between the heat-conducting oil heat-storing and heat-exchanging outer shell and the heat-conducting oil heat-storing and heat-exchanging inner shell; fig. 19-4 show a heat storage, heat exchange and heat insulation structure of single-phase electric power supply heat conduction oil. Fig. 19-5 are schematic structural diagrams of the heat transfer oil heat exchange device.

In the figure:

1. the heat storage device, 2, an absorption type heat and cold machine, 3, a phase change heat storage device, 4, a sensible heat storage device, 5, a fused salt heat storage device, 6, a metal phase change heat storage device, 7, a high-temperature refractory material or refractory brick heat storage device, 8, a heat conduction oil heat storage device, 9, a lithium bromide absorption refrigerator, 10, an ammonia water absorption refrigerator, 11, a fused salt heat storage outer shell, 12, a fused salt heat storage inner shell, 13, fused salt, 14, a fused salt power supply, 15, a fused salt electric heating device, 16, a fused salt input interface, 17, a fused salt output interface, 18, an upper cylinder, 19, a lower cylinder, 20, a condenser, 21, a condenser interface, 22, a condenser interface, 23, a condensed water receiving disc, 24, water vapor, 25, a condensed water connecting tube, 26, a generator, 27, a generator interface, 28, a generator interface, 29, a lithium bromide high-temperature concentrated solution, 30, a lithium bromide solution discharge interface, 31, a high-temperature lithium bromide solution interface, 32, a coolant water spray device, 33, a coolant water spray interface, 34, an evaporator, 35, an evaporator interface, 36, an evaporator interface, 37, an evaporator water receiving disc, 38, a coolant low-temperature water vapor, 39, a coolant water interface, 40, a coolant 16 pump, 41, a lithium bromide solution spray interface, 42, a lithium bromide solution spray device, 43, an absorber, 44, an absorber interface, 45, an absorber interface, 46, a lithium bromide dilute solution, 47, a lithium bromide dilute solution interface, 48, a solution purification pump, 49, a lithium bromide dilute solution interface, 50, a solution spray pump, 51, a concentrated solution storage cylinder, 52, a concentrated solution, 53, a concentrated solution liquid discharge pipe, 54, a concentrated solution exhaust, 55, a concentrated solution interface, 56, a solution heat exchanger, 57, a solution heat exchanger primary heat exchange side, 58, a solution heat exchanger secondary heat exchange side, 59. the condensate, 60, high-pressure low-temperature liquid water spraying device, 61, high-pressure low-temperature liquid water, 62, high-temperature generator, 63, high-temperature lithium bromide solution, 64, low-temperature lithium bromide solution, 65, high-temperature generating cylinder, 66, low-temperature generator, 67, high-temperature heat exchanger, 68, low-temperature generating cylinder, 69, high-temperature dilution liquid return port, 70, low-temperature lithium bromide solution interface, 71, low-temperature dilution liquid return port, 72, lithium bromide solution pump, 73, high-temperature solution heat exchanger, 74, low-temperature solution heat exchanger, 75, high-temperature solution heat exchange interface, 76, high-temperature solution heat exchange interface, 77, low-temperature solution interface, 78, concentrate interface, 79, molten salt circulating pump, 80, heat conducting oil heat storage outer shell, 81, heat conducting oil heat storage inner shell, 82, heat conducting oil, 83, heat conducting oil power supply, 84, heat conducting oil electric heating device, 85, heat conducting oil interface, 86, heat conducting oil interface, 87, conduction oil circulation pump, 88, molten salt heat exchanger, 89, conduction oil side heat exchange shell, 90, conduction oil side heat exchange inner shell, 91, conduction oil heat exchange interface, 92, conduction oil heat exchange interface, 93, conduction oil output interface, 94, conduction oil output interface, 95, conduction oil molten salt heat exchange pump, 96, conduction oil heat exchange circulation pump, 97, molten salt heat storage outer shell, 98, molten salt heat storage inner shell, 99, molten salt steam generator, 100, molten salt interface, 101, molten salt interface, 102, molten salt heat exchanger interface, 103, molten salt heat exchanger interface, 104, check valve, 105, steam water supply pump, 106, steam water source interface, 107, steam input interface, 108, steam storage tank outer shell, 109, steam storage tank inner shell, 110, thermal insulation material, 111, steam, 112, steam output interface, 113, valve, 114 Check valve, 115, molten salt heat exchanger, 116, molten salt heat exchanger interface, 117, molten salt heat exchanger interface, 118, molten salt heat transfer oil heat exchange pump, 119, heat transfer oil heat storage heat exchange outer shell, 120, heat transfer oil heat storage heat exchange inner shell, 121, heat transfer oil steam generator, 122, molten salt heat transfer oil heat exchange interface, 123, heat transfer oil heat exchange interface, 124, heat transfer oil steam output interface, 125, steam water source inlet, 126, heating heat exchange water storage tank outer body, 127, heating heat exchange water storage tank inner body, 128, heating heat exchange water storage tank insulation material, 129, heating hot water, 130, hot water heating heat exchanger, 131, hot water heating heat exchanger interface, 132, hot water heating heat exchanger interface, 133, heating heat supply pump, 134, radiator, 135, floor pipe, 136, fan coil, 137, domestic hot water heat exchanger, 138, shower device, 139, tap water interface, 140, single-phase electric molten salt heat storage outer shell, 141, single-phase electric molten salt heat storage inner shell, 142, single-phase power supply, 143, single-phase electric heating device, 144, winter/summer switching valve, 145, winter/summer switching valve, 146, winter/summer switching valve, 147, winter/summer switching valve, 148, solid obvious heat storage device, 149, high-temperature refractory material or refractory brick, 150, molten salt or phase change material heat exchanger, 151, solid heat storage power supply, 152, solid electric heating device, 153, molten salt or phase change material circulating pump, 154, molten salt or phase change material interface, 155, molten salt or phase change material interface, 156, high-temperature heat insulation and heat preservation material, 157, vacuum insulation state, 158, single-phase thermal oil heat storage and heat exchange outer shell, 159, single-phase thermal oil heat storage and heat exchange inner shell, 160, single-phase thermal oil heat storage heat exchanger, 161, the heat transfer oil first heat exchanger, 162, the heat transfer oil second heat exchanger, 163, the raw lithium bromide direct combustion furnace body, 164, the domestic hot water heat exchanger, 165, the heating heat supply heat exchanger, 166, the domestic hot water interface, 167, the domestic hot water interface, 168, the lithium bromide inlet interface, 169, the electromagnetic heat storage outer shell, 170, the electromagnetic heat storage inner shell, 171, the vacuum or/and high-temperature heat insulation material, 172, the electromagnetic induction disc induction coil, 173, the electromagnetic induction disc, 174, the first coil joint, 175, the second coil joint, 176, the high-frequency power distribution device, 177, the ceramic heat insulation layer, 178, the electromagnetic heat storage power supply, 179, the magnetic force line, 180, the first electromagnetic heat transfer oil outlet interface, 181, the second electromagnetic heat transfer oil outlet interface, 182, the electromagnetic heat storage inner shell electromagnetic induction coil, 183, the molten salt steam outlet interface, 184, the steam jet refrigerator, 185, the solid obviously outer heat storage device, 186, the steam condensate heat exchanger, 187, the high-temperature steam protection layer, 188, the low-temperature steam inlet, 189, the high-temperature generator inlet, 190, and the high-temperature generator outlet.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 4, the present embodiment provides a heat storage absorption refrigerator including a heat storage device 1 and an absorption refrigerator 2.

The heat output end of the heat storage device 1 is connected with the heat input end of the absorption refrigerator 2.

The heat storage device 1 includes a phase change heat storage device 3 or a sensible heat storage device 4.

The phase change heat storage device 3 includes a molten salt heat storage device 5 or a metal phase change heat storage device 6.

The sensible heat storage means 4 comprises a high temperature refractory or refractory brick heat storage means 7 or a heat transfer oil heat storage means 8.

The absorption refrigerator 2 includes a lithium bromide absorption refrigerator 9, an ammonia absorption refrigerator 10, or a steam injection refrigerator.

FIG. 5 is an embodiment of a fused salt heat storage single effect lithium bromide absorption refrigerator according to the present utility model. The figure shows the structure of a combined refrigerator of a fused salt heat storage device and a lithium bromide double-cylinder single-effect refrigerator. The molten salt heat storage device 5 is composed of a molten salt heat storage outer shell 11, a molten salt heat storage inner shell 12, molten salt 13, a molten salt power supply 14, an electric heating device 15 and a molten salt circulating pump 79.

In the figure, a molten salt 13 is arranged in a molten salt heat storage inner shell 12, an electric heating device 15 is arranged in the molten salt 13, and a lithium bromide absorption refrigerator 9 is composed of an upper cylinder 18 and a lower cylinder 19.

In fig. 5, the upper cylinder 18 is composed of a condenser 20, a generator 26, and a lithium bromide solution 29. The lithium bromide solution 29 is disposed in the upper cylinder 18, the generator 26 is disposed in the lithium bromide solution 29, the condenser 20 is disposed above the generator 26, and the water receiving tray 23 is disposed below the condenser 20.

One end of the molten salt circulating pump 79 is connected with the molten salt heat storage inner shell 12 and is communicated with the molten salt 13, the other end of the molten salt circulating pump 79 is connected with one end of the generator 26, and the other end of the generator 26 is connected with the molten salt heat storage inner shell 12 and is communicated with the molten salt 13.

In fig. 5, the lower cylinder 19 includes an evaporator 34, a coolant pump 40, a spray device 32, an absorber 43, a lithium bromide solution 46, a solution pump 48, a solution pump 50, a solution spray device 42, and a solution heat exchanger 56.

A water pan 37 is disposed below the evaporator 34 and above the absorber 43, and a solution spray device 42 is disposed above the absorber 43 and above the lithium bromide solution 46 in which the absorber 43 is disposed.

One end of the refrigerant pump 40 is connected to the water pan 37, the other end of the refrigerant pump 40 is connected to the shower 32, and the shower 32 is disposed above the evaporator 34.

One end of the solution pump 48 is connected with the lower end of the lower cylinder 19 and is communicated with the lithium bromide solution 46, the other end of the solution pump 48 is connected with the lower end of the upper cylinder 18 through a primary side 58 of the solution heat exchanger 56 and is communicated with the lithium bromide high-temperature concentrated solution 29, one end of the solution pump 50 is connected with the lower end of the lower cylinder 19 and is communicated with the lithium bromide solution 46, the other end of the solution pump 50 is connected with the solution spraying device 42, one end of a secondary side of the solution heat exchanger 56 is connected with the lower part of the upper cylinder 18 and is communicated with the lithium bromide solution 29, and the other end of the secondary side of the solution heat exchanger 56 is connected with the concentrated solution return cylinder 51 and is communicated with the concentrated lithium bromide solution 52 in the concentrated solution return cylinder 51.

Lithium bromide refrigerator is a kind of absorption refrigerator commonly used in the world. The machine set for preparing low-temperature chilled water with the temperature of more than 0 ℃ is mainly used for a central air conditioning system. The lithium bromide absorption refrigerator uses the characteristic that the boiling point of water is low (only 4 ℃) in a vacuum state to refrigerate, and uses the latent heat of boiling, evaporating and vaporizing of water in a low temperature to refrigerate. Therefore, water is used as a refrigerant, and lithium bromide aqueous solution is used as an absorbent, and the refrigerating and air conditioning system (which is an friendly refrigerator responding to the montreal protocol) does not use a refrigerant, and thus is one of environment-friendly refrigerating and air conditioning systems. At the moment of unprecedented severity of the greenhouse effect, the application of the absorption refrigeration air conditioner unit should be greatly promoted. Meanwhile, the energy storage device is a good item for greatly developing wind and photovoltaic green electric energy as energy storage, and has the advantages of safety, high efficiency, energy saving and low one-time investment compared with battery energy storage and air compressor energy storage as well as water pumping energy storage. Under the bottleneck that downwind and photovoltaic power generation are subjected to energy storage, the heat storage absorption refrigerator is a very ideal energy storage equipment option.

In operation of fig. 5, the stored energy is supplied with electricity using electricity from a valley or wind, photovoltaic power generation or grid valley. The molten salt power supply 14 is connected to supply power to the electric heating device 15, and the molten salt 13 is heated to be changed from solid state to liquid state, the temperature of the heated molten salt is generally about 600 ℃, and the molten salt can be heated to 900 ℃ or higher, and the higher the temperature of the molten salt, the larger the heat storage amount is. However, if the molten salt heat storage tank can withstand such high temperatures, the cost performance of the molten salt heat storage inner shell should be comprehensively evaluated, especially the cost effectiveness of the molten salt heat storage inner shell. The high-temperature liquid molten salt 13 enters the generator 26 through the generator interface 28 in a circulating way of the molten salt circulating pump 79, the high-temperature molten salt 13 heats the lithium bromide high-temperature concentrated solution 29 through the generator 26, water in the lithium bromide solution 29 is continuously gasified to evaporate a large amount of water vapor 24, the water is cooled by cooling water circulating in the condenser 20, high-pressure low-temperature liquid water 61 is formed, the high-pressure low-temperature liquid water 61 is converged in the condensate water receiving disc 23 below the condenser 20, and the condensate water is sprayed to the evaporator 34 through the high-pressure low-temperature liquid water spraying device 60. The cooling water enters from the condenser interface 21, flows out from the condenser interface 22, is input into the absorber 43 from the absorber interface 44, returns to the cooling tower through the absorber interface 45 for cooling, and then repeatedly circulates the condenser 20 and the absorber 43 to finish the cooling water cooling operation. After the high-temperature liquid molten salt 13 heats the lithium bromide high-temperature concentrated solution 29 to release heat, the supercooled high-temperature liquid molten salt 13 is circulated back into the molten salt 13 in the molten salt heat storage inner shell 12 through the molten salt input interface 16 by the generator interface 27, is continuously heated by the electric heating device 15 to become high-temperature molten salt, and is circulated by the molten salt circulating pump 79, and the process of heating, evaporating and concentrating the lithium bromide high-temperature concentrated solution 29 through the generator 26 is repeated.

Since the generator 26 heats the high-temperature concentrated solution 29 of lithium bromide, the saturation partial pressure of the water vapor 24 on the liquid surface of the aqueous solution of lithium bromide is smaller than that of pure water, and the higher the concentration is, the smaller the saturation partial pressure of the water vapor on the liquid surface is, and the better the refrigerating effect is. The water vapor 24 is cooled by the cooling water circulating in the condenser and then condensed into high-pressure low-temperature liquid water 61, and when the liquid water is sprayed into the evaporator 34 through the high-pressure low-temperature liquid water spraying device 60 by the throttle valve, the liquid water rapidly expands and is vaporized to form the refrigerant low-temperature water vapor 38, and a large amount of heat of air-conditioning refrigerant water circulating in the evaporator 34 pipe is absorbed in the vaporization process, so that the temperature of the refrigerant water is reduced, and the purpose of refrigeration is achieved. In the process, the low-temperature water vapor 38 which is vaporized by absorbing the heat of the coolant water in the evaporator enters the absorber 43 and is absorbed by the lithium bromide water solution sprayed by the lithium bromide solution spraying device 42, the concentration of the lithium bromide solution is gradually reduced, when one path of diluted lithium bromide dilute solution 46 passes through the solution purifying pump 48 through the solution heat exchanger secondary heat exchange side 58 of the solution heat exchanger 56 via the lithium bromide dilute solution interface 47, the lithium bromide high-temperature concentrated solution 29 which flows out of the lithium bromide solution discharging interface 30 is heated by the primary heat exchange side 57 of the solution heat exchanger, and then enters the lithium bromide high-temperature concentrated solution 29 from the interface 168 of the upper cylinder 18, and the entered lithium bromide dilute solution 46 is heated and concentrated by the generator 26; the other path of lithium bromide high-temperature concentrated solution 29 subjected to heat exchange and heat release through the primary heat exchange side 57 of the solution heat exchanger enters the concentrated solution storage cylinder 51 through the concentrated solution drain pipe 53, is mixed with the lithium bromide dilute solution 46 output by the lithium bromide dilute solution interface 49 through the concentrated solution interface 55, is jointly sent into the lithium bromide solution spraying device 42 to spray and mix the lithium bromide solution to the absorber 43 through the lithium bromide solution spraying interface 41 by the solution spraying pump 50, absorbs the vapor 38 vaporized by the evaporator, and is subjected to the reciprocating lithium bromide solution dilution, heating and concentration, and then the dilution and concentration process is sprayed, so that the purpose of lithium bromide absorption refrigeration is finally realized.

Cooling water enters the condenser 20 from the cooling tower through the condenser interface 21, is input into the absorber interface 44 from the condenser interface 22, and returns to the cooling tower through the absorber interface 45, thus completing the cooling water circulation.

The air-conditioning coolant water enters the evaporator 34 from the evaporator interface 35, is sprayed, evaporated, absorbed and cooled to form chilled water, and is output from the evaporator interface 36 to form a chilled water circulation loop.

Compared with the steam, fuel oil and gas type absorption refrigerator in the prior art, the heat storage type absorption refrigerator has the advantages that: the heat loss of steam condensate not less than 80 ℃ to 90 ℃ and gas smoke not less than 120 ℃ to 150 ℃ can be compensated. Therefore, the efficiency of the heat storage absorption refrigerator is far higher than that of the three absorption refrigerators in the prior art. And the heat storage is operated by using electricity price in the valley period, namely the operation cost of the heat storage refrigerant is saved compared with steam, fuel oil and fuel gas.

Fig. 6 is an embodiment of a heat-conducting oil heat-storage heat-exchange double-cylinder single-effect lithium bromide absorption refrigerator according to the utility model. Fig. 6 differs from fig. 5 only in the way in which heat is stored. Fig. 5 is a phase change heat storage using molten salt, and fig. 6 is a sensible heat storage using heat transfer oil. The same applies to lithium bromide absorption refrigerators.

In fig. 6, a conduction oil heat storage type double-cylinder single-effect lithium bromide absorption refrigerator is formed by a conduction oil heat storage outer casing 80, a conduction oil heat storage inner casing 81, conduction oil 82, a power supply 83, an electric heating device 84, a conduction oil circulating pump 87, an upper cylinder 18 and a lower cylinder 19 of the lithium bromide absorption refrigerator 9.

In the drawing, the heat transfer oil 82 is disposed in the heat transfer oil heat storage inner case 81, and the electric heater 84 is disposed in the heat transfer oil 82.

One end of the heat conducting oil circulating pump 87 is connected with the heat conducting oil heat storage inner shell 81 and is communicated with the heat conducting oil 82, the other end of the heat conducting oil circulating pump 87 is connected with one end of the generator 26, and the other end of the generator 26 is connected with the heat conducting oil heat storage inner shell 81 and is communicated with the heat conducting oil 82.

In operation, the power supply 83 is connected to the power supply, the electric heating device 84 heats the heat transfer oil 82, generally to 300 ℃ and at most 350 ℃, and oil residues are easily generated in the pipe wall, which is disadvantageous to the heat transfer oil system.

The high-temperature heat conduction oil enters the generator 26 from the generator interface 28 through the heat conduction oil heat exchange pump 87 in a circulating way, the high-temperature heat conduction oil 82 is utilized to heat the lithium bromide high-temperature concentrated solution 29 through the generator 26, moisture in the lithium bromide solution is evaporated continuously, the lithium bromide solution is concentrated, the supercooled heat conduction oil 82 returns to the heat conduction oil heat storage inner shell 81 from the generator interface 27 through the heat conduction oil interface 85 and is mixed with the high-temperature heat conduction oil to be heated continuously. The heated high-temperature heat conduction oil 82 is continuously input into the heat conduction oil heat exchange pump 87 through the heat conduction oil interface 86 to repeat the circulation, and the heating, evaporating and concentrating process of the lithium bromide high-temperature concentrated solution 29 through the generator 26 is repeated. The others are the same as in fig. 5 and are not repeated.

FIG. 7 is an embodiment of a double-cylinder single-effect lithium bromide absorption refrigerator with heat accumulation by molten salt and heat transfer oil according to the utility model. Fig. 7 is an embodiment of a heat storage and exchange structure for storing heat at a high temperature by using molten salt at a first stage and storing heat at a low temperature by using heat conduction oil at a second stage derived on the basis of fig. 5 and 6.

The first stage utilizes molten salt high-temperature heat accumulation to be formed by a molten salt heat accumulation outer shell 11, a molten salt heat accumulation inner shell 12, molten salt 13, a power supply 14, an electric heating device 15, a molten salt heat exchanger 88 and a molten salt heat exchange circulating pump 95, wherein the molten salt heat exchanger 88 is configured in the molten salt 13;

the heat conduction oil low-temperature heat accumulation and exchange is composed of a heat conduction oil heat accumulation and exchange outer shell 89, a heat conduction oil heat accumulation and exchange inner shell 90, heat conduction oil 82 and a heat conduction oil output circulating pump 96, wherein the heat conduction oil 82 is arranged in the heat conduction oil heat accumulation and exchange inner shell 90.

In operation, the molten salt 13 is heated to about 600 ℃ by the electric heating device 15, the heat conduction oil 82 enters the molten salt heat exchanger 88 in a circulating way by the molten salt heat exchange circulating pump 95, and the heat conduction oil 82 is heated to the required temperature by about 600 ℃ by the molten salt heat exchanger 88 and then stored in the heat conduction oil heat storage and exchange inner shell 90 at the temperature of less than or equal to 350 ℃. The heat transfer oil heat exchange circulating pump 96 sets the circulating heat exchange amount according to the ideal temperature required by the generator 26, so that the generator 26 can efficiently, energy-effectively and stably heat the lithium bromide solution. The molten salt heat exchange circulating pump 95 and the heat conduction oil output circulating pump 96 can control the optimal rotating speed through a frequency conversion technology, so that energy-saving and efficient operation can be realized. The other is the same as in fig. 5 and 6 and is not repeated.

FIG. 8 is an embodiment of a two-stage fused salt heat storage and conduction oil heat storage heat exchange double-cylinder single-effect lithium bromide absorption refrigerator according to the utility model. In the figure, the first-stage molten salt heat storage consists of a molten salt heat storage outer shell 11, a molten salt heat storage inner shell 12, molten salt 13, a power supply 14, an electric heating device 15 and a molten salt circulating pump 79; the second stage consists of a molten salt heat storage outer shell 97, a molten salt heat storage inner shell 98, molten salt 13, an electric heating device 14, a power supply 15, a molten salt heat exchanger 88 and a molten salt heat exchange circulating pump 95; the heat transfer oil heat accumulation and exchange consists of a heat transfer oil heat accumulation and exchange outer shell 89, a heat transfer oil heat accumulation and exchange inner shell 90, heat transfer oil 82 and a heat transfer oil output circulating pump 96.

One end of the molten salt circulating pump 79 is connected with the molten salt heat storage inner shell 98 and is communicated with the molten salt 13, the other end of the molten salt circulating pump 79 is connected with the molten salt heat storage inner shell 12 and is communicated with the molten salt 13, the molten salt heat storage inner shell 12 is connected with the molten salt heat storage inner shell 98, and the molten salt 13 of the two shells is communicated.

In operation, the first stage molten salt heat storage heats the molten salt 13 to around 900 ℃ and stores it in the molten salt heat storage inner housing 12. The second stage heats the molten salt 13 to about 600 or 300 ℃ by molten salt heat exchange and heat storage, and stores the molten salt in the molten salt heat storage inner shell 96. The heat transfer oil stores heat and exchanges heat to heat the heat transfer oil to the desired temperature for efficient, energy-saving and stable heating of the lithium bromide solution for operation of the generator 26.

The reason why the second stage molten salt heat storage also configures the electric heating device 14 and the power source 15 is that: the molten salt in the initial state is in a solid state, cannot flow, and is difficult to circulate and heat the molten salt 13 in the second stage by means of the molten salt circulation pump 79. Thus, it is convenient to configure the electric heating device 14 and the power source 15 for use. The heating device can be used for heating by heat exchange initially or independently.

The three stages ensure the stable operation of the lithium bromide absorption refrigerator 9 consisting of the upper cylinder 18 and the lower cylinder 19 through efficient, energy-saving, stable heating, heat storage and heat exchange of the variable frequency control device. The others are the same as in figures 5, 6 and 7 and will not be repeated. Otherwise, the same as in fig. 7 is not repeated.

FIG. 9 is an embodiment of a three-cylinder double-effect lithium bromide absorption refrigerator for heat storage and heat exchange by molten salt and heat conducting oil according to the utility model; fig. 9 is a schematic diagram of a three-cylinder double-effect lithium bromide absorption refrigerator, and the heat exchange of the molten salt heat storage and the heat conduction oil heat storage is the same as that of fig. 7, except that fig. 9 is a schematic diagram of a three-cylinder double-effect lithium bromide absorption refrigerator.

The basic working principle of the double-effect lithium bromide absorption refrigerator is the same as that of the single-effect lithium bromide absorption refrigerator, except that the single-effect lithium bromide absorption refrigerator is changed from two cylinders into three cylinders, the upper cylinder 18 of the single-effect lithium bromide absorption refrigerator is divided into a left cylinder, a right cylinder, a high-temperature generation cylinder and a low-temperature generation cylinder, and the structure of the lower cylinder 19 is unchanged, so that the three-cylinder double-effect lithium bromide absorption refrigerator is formed.

The high-temperature generating cylinder 65 is composed of a high-temperature lithium bromide solution interface 31, a high-temperature generator 62, a high-temperature lithium bromide solution 63, a high-temperature heat exchanger 67, a high-temperature dilution liquid return port 69 and a high-temperature solution heat exchanger 73; the low-temperature generator tube 68 is composed of a low-temperature lithium bromide solution 64, a low-temperature generator 66, a low-temperature lithium bromide solution interface 70, a low-temperature dilution liquid return port 71, and a low-temperature solution heat exchanger 74.

In operation, the high-temperature heat conduction oil heat exchange circulating pump 96 circulates the high-temperature heat conduction oil 82 to the high-temperature generator 62 to heat the high-temperature lithium bromide solution 63, after the heat is released by the high-temperature generator 62, the supercooled high-temperature heat conduction oil 82 circulates back to the heat conduction oil heat storage heat exchange inner shell 90, and after the circulated molten salt heat exchange circulating pump 95 continues to heat through the molten salt heat exchanger 88, the circulating heating of the high-temperature generator 62 is repeated. When the high-temperature heat conduction oil heats the high-temperature lithium bromide solution 63, a large amount of high-temperature steam enters the low-temperature generator 66 from the high-temperature steam outlet 187 and heats the low-temperature lithium bromide solution 64, the supercooled steam enters the low-temperature generation cylinder 68 through the low-temperature steam inlet 188 and is cooled by the cooling water circularly flowing in the condenser 20, and high-pressure low-temperature liquid water 61 is formed, the high-pressure low-temperature liquid water 61 is converged in the condensate water receiving disc 23 below the condenser 20, and is sprayed to the evaporator 34 through the high-pressure low-temperature liquid water spraying device 60. The lithium bromide dilute solution 46 is sent to the lithium bromide solution spraying device 42 through the lithium bromide dilute solution interface 49 and the lithium bromide solution pump 72 through the concentrated solution storage cylinder 51 and the lithium bromide solution spraying interface 41 to spray the lithium bromide dilute solution 46 to the absorber 43; the second path of lithium bromide dilute solution 46 is subjected to combined heat exchange with the high-temperature lithium bromide solution 63 from the high-temperature generating cylinder 65 through the high-temperature lithium bromide solution interface 31 and the low-temperature lithium bromide solution 64 from the low-temperature generating cylinder 68 through the low-temperature lithium bromide solution interface 70 through the heat exchange side of one side of the low-temperature solution heat exchanger 74, is input into the high-temperature heat exchanger 67 to exchange heat with the high-temperature generating cylinder 65, is input into the low-temperature generating cylinder 68 through the low-temperature dilution liquid return port 71, and is heated and concentrated by the low-temperature generator 66; the combined heat exchange path is from the high-temperature solution heat exchanger 73 to the high-temperature solution heat exchange interface 75 through the high-temperature lithium bromide solution interface 31, and is from the high-temperature solution heat exchange interface 76 to the low-temperature solution interface 77. The low-temperature lithium bromide solution 64 is also led to the low-temperature solution interface 77 through the low-temperature lithium bromide solution interface 70, and the concentrated solution 52 which exchanges heat with the lithium bromide dilute solution 46 is sent to the concentrated solution storage cylinder 51 through the concentrated solution outlet pipe 53 together through the concentrated solution interface 78; the third path of lithium bromide dilute solution 46 is input into the high temperature solution heat exchanger 73 after being subjected to combined heat exchange through the heat exchange side at the other side of the low temperature solution heat exchanger 74, and is input into the high temperature generator 65 through the high temperature dilution liquid return port 69 to be heated by the high temperature generator 62 through the lithium bromide solution discharge port 30 after being subjected to heat exchange and heating of the high temperature lithium bromide solution 63 from the high temperature generator 65 through the high temperature lithium bromide solution port 31, and is concentrated into the high temperature lithium bromide solution 63. The other is the same as the double-cylinder single-effect lithium bromide refrigerator.

FIG. 10 is an embodiment of a fused salt heat storage type vapor lithium bromide absorption refrigerator according to the utility model. Fig. 10 is a schematic diagram of a vapor-type lithium bromide refrigerator according to the prior art, which is developed to accommodate the two-carbon project, and is a heat-storage-type vapor-type lithium bromide refrigerator.

The China is the country where the steam lithium bromide refrigerator is manufactured, the manufacturers of the steam lithium bromide refrigerator are numerous, the stock of the steam lithium bromide refrigerator in society is huge, and if the steam lithium bromide refrigerator is modified into a heat storage type lithium bromide refrigerator, the steam lithium bromide refrigerator has certain energy-saving social significance.

The fused salt heat storage is composed of a fused salt heat storage outer shell 97, a fused salt heat storage inner shell 98, fused salt 13, a power supply 14, an electric heating device 15, a steam generating device 99 and a steam water supply pump 105. The steam generation and storage device is composed of a steam storage tank outer shell 108, a steam storage tank inner shell 109, a heat preservation and insulation material 110, steam 111 and a valve 113.

In operation, a water source adapted to produce steam enters the steam generating device 99 through the steam water source port 106 through the steam water supply pump 105 and the check valve 104 through the steam water source inlet 125, and then the steam 111 heated by the molten salt 13 is generated and enters the steam input port 107 through the molten salt steam output port 183, and is stored in the steam storage tank inner shell 109.

The filling of the heat insulating material 110 between the steam storage tank outer case 108 and the steam storage tank inner case 109 serves both the functions of heat insulation, and high-temperature heat insulation and pressure bearing of the steam 111 for the steam storage tank inner case 109.

Steam 111 stored in the inner shell 109 of the steam storage tank is input into the generator 26 from the generator interface 27 through the steam output interface 112, the valve 113 and the check valve 114, and after the lithium bromide high-temperature concentrated solution 29 is heated, the steam is output to the condensate 59 from the generator interface 28 to complete the process of heating the concentrated lithium bromide solution.

Fig. 10 shows that the steam type lithium bromide refrigerator has lower efficiency than the mode of heating the lithium bromide solution by using the molten salt 13 or the heat conduction oil 82 circulation generator 26 in the utility model due to the steam condensation heat loss of about 95 ℃ because the direct circulation molten salt or the heat conduction oil does not have the steam condensation heat loss of 95 ℃.

In order to overcome the heat loss of the steam condensate at 95 ℃, the existing steam type lithium bromide refrigerator is changed into the operation mode of the utility model that the molten salt 13 or the heat conduction oil 82 is utilized by the circulation generator 26 to heat the lithium bromide solution in the attached figures 5, 6, 7, 8 and 9.

FIG. 11 is an embodiment of a two-stage molten salt heat storage type vapor lithium bromide absorption refrigerator according to the utility model. In the figure, the first-stage heat storage device is composed of a molten salt heat storage outer shell 11, a molten salt heat storage inner shell 12, molten salt 13, a power supply 14, an electric heating device 15 and a molten salt circulating pump 79. The second stage consists of a fused salt heat storage outer shell 97, a fused salt heat storage inner shell 98, fused salt 13, a power supply 14, an electric heating device 15 and a steam generating device 99. The steam generation and storage is composed of a steam water supply pump 105, a steam storage tank outer case 108, a steam storage tank inner case 109, a heat insulating material 110, steam 111, and a valve 113.

When the molten salt heat storage device is operated, the molten salt of the first-stage heat storage device stores heat at 900 ℃, and the molten salt 13 circularly fed to the second-stage molten salt heat storage inner shell 98 is heated to about 600-300 ℃ by the molten salt circulating pump 79. After the water source adapted to produce steam enters the steam generating device 99 through the steam water source port 106 through the steam water supply pump 105 and the check valve 104 through the steam water source inlet 125, the steam 111 generated by heating the fused salt 13 enters through the fused salt steam output port 183 through the steam input port 107 and is stored in the steam storage tank inner shell 109. The molten salt 13 of the second stage molten salt heat storage inner housing 98 is heated to about 600-300 ℃ to accommodate the production of various temperature vapors. The others are the same as in fig. 9.

FIG. 12 is an embodiment of the two-stage molten salt and conduction oil heat storage and exchange type double-effect steam lithium bromide absorption refrigerator. Fig. 12 is a diagram of a double-effect steam lithium bromide absorption refrigerator and a heat-conducting oil heat-storage heat-exchange steam device configured on the basis of the embodiment of fig. 10 and 11.

In fig. 12, the heat conducting oil heat-storing and heat-exchanging steam device is composed of a heat conducting oil heat-storing and heat-exchanging steam outer shell 119, a heat conducting oil heat-storing and heat-exchanging steam inner shell 120, heat conducting oil 82, a heat conducting oil steam generator 121, a steam water supply pump 105, a steam storage tank outer shell 108, a steam storage tank inner shell 109, steam 111, a valve 113 and a check valve 114;

In operation, the first stage molten salt is heated to a high temperature of 900 ℃, the molten salt 13 circulated to the second stage molten salt heat storage inner housing 98 by the molten salt circulating pump 79 is heated to about 600 ℃, and the heat transfer oil 82 is heated to about 300 ℃ by the molten salt heat transfer oil heat exchange pump 118 circulation, and steam 111 is generated. Steam 111 enters the high-temperature generator 62 through the generator interface 27 from the return valve 114 through the valve 113 to heat and concentrate the high-temperature lithium bromide solution 63, and is discharged through the condensate 59 after heat exchange through the steam condensate heat exchanger 186 by the generator interface 28. The other is the same as in fig. 9, 10 and 11, and is not repeated.

FIG. 13 is an embodiment of a two-stage molten salt heat storage and conduction oil heat storage heat exchange type direct-fired lithium bromide absorption refrigerator according to the utility model. Fig. 13 is an illustration of an embodiment of a prior art direct-fired lithium bromide absorption chiller configured on the basis of the embodiment of fig. 8 and innovated into a heat-storage lithium bromide absorption chiller according to the dual carbon program objectives.

The direct-fired lithium bromide absorption refrigerator and the steam lithium bromide absorption refrigerator are of the type which is widely applied to the existing absorption refrigerator in China, and are basically the same except for different heating modes. One is to heat the concentrated lithium bromide solution by natural gas combustion, and the other is to heat the concentrated lithium bromide solution by steam, so that the application of the existing direct-fired lithium bromide absorption refrigerator and the steam lithium bromide absorption refrigerator is affected because carbon emission is limited under the double-carbon plan. Therefore, the heat storage type lithium bromide absorption refrigerator utilizes wind and photovoltaic power generation, and the electricity grid valley electricity heat storage is innovation and grafting of the traditional lithium bromide absorption refrigerator, and has certain significance on the energy storage.

Fig. 13, the natural gas or fuel oil or liquid petroleum burner of the lithium orthobromide direct-fired furnace 163 is removed, and the high-temperature generator 62 is used to replace the natural gas or fuel oil or liquid petroleum burner to heat the high-temperature lithium bromide solution 63.

In operation, the high-temperature heat-conducting oil 82 circulated by the heat-conducting oil heat-exchanging circulating pump 96 is input into the high-temperature generator 62 through the high-temperature generator inlet 189 to replace the natural gas or fuel oil or liquid fossil oil burner to heat the high-temperature lithium bromide solution 63, the heat-conducting oil 82 after heat release and supercooling is returned to the heat-conducting oil 82 in the heat-conducting oil side heat-exchanging inner shell 90 through the heat-conducting oil output interface 93 by the high-temperature generator outlet 190, the molten salt 13 continuously circulated by the heat-conducting oil molten salt heat-exchanging pump 95 is heated by the heat-conducting oil output interface 94 through the heat-conducting oil heat-exchanging circulating pump 96, and the heating operation of the natural gas or fuel oil or liquid fossil oil burner replaced by the molten salt and the heat-conducting oil is repeated.

The direct-fired lithium bromide absorption refrigerator is often provided with a domestic hot water heat exchanger 164 and a heating heat exchanger 165. The domestic hot water is output and circulated to be heated by the domestic hot water interface 166 and the domestic hot water interface 167. The heating water is circulated by the evaporator interface 35 and the evaporator interface 36. The cooling water is circulated and cooled by the condenser interface 21 and the absorber interface 45. The other steps are not repeated as in the double-effect lithium bromide absorption refrigerator.

FIG. 14 is an embodiment of a two-stage molten salt heat storage and conduction oil heat storage heat exchange type heating system of the utility model. Fig. 14 is a diagram of a heating and heat exchanging water tank, which is composed of an outer heating and heat exchanging water tank body 126, an inner heating and heat exchanging water tank body 127, a heat insulating material 128 of the heating and heat exchanging water tank, heating hot water 129, a hot water heating heat exchanger 130, a hot water heating heat exchanger interface 131, a hot water heating heat exchanger interface 132, a heating and heat supplying pump 133, a radiator 134 or a floor pipe 135 or a fan coil 136 and/or a domestic hot water heat exchanger 137, a shower device 138 and a tap water interface 139.

During heating and heat supply operation, the heat conduction oil heat exchange circulating pump 96 circulates high-temperature heat conduction oil 82 to enter the hot water heating heat exchanger 130 through the hot water heating heat exchanger interface 131 to heat heating hot water 129, the supercooled heat conduction oil 82 is fed into the heat conduction oil side heat exchange inner shell 90 through the heat conduction oil output interface 93 and through the heat conduction oil output interface 132, the high-temperature heat conduction oil 82 is continuously heated by high-temperature solution through the molten salt heat exchanger 88 and continuously consumed by the heat conduction oil molten salt heat exchange pump 95, the heat conduction oil output interface 94 is fed into the heat conduction oil heat exchange circulating pump 96, and the circulation is repeated for heating the heating hot water 129. When heating, the heating hot water 129 is circulated by the heating heat supply pump 133, enters the radiator 134 or the floor pipe 135 or the fan coil 136 and/or the domestic hot water heat exchanger 137, and is heated and supplied by the radiator 134 or the floor pipe 135 or the fan coil 136 or the domestic hot water heat exchanger 137. The bath hot water enters the bath heat exchange side of the living hot water heat exchanger 137 through the tap water interface 139, and after the heating hot water 129 circulated on the heating side of the living hot water heat exchanger 137 is subjected to heat exchange and heating, the bath is realized by the shower device 138.

Fig. 14 is a diagram showing the heating and heat supply of the winter matched heat storage lithium bromide absorption refrigerator in the northern area needing heating and heat supply.

Fig. 15 is an embodiment of the molten salt heat storage and conduction oil heat storage heat exchange type lithium bromide absorption refrigerating and heating system of the utility model. Fig. 5 is an embodiment of fig. 7 in combination with fig. 14 for a more suitable heating application in a heating area. In the prior art, lithium bromide absorption refrigeration generally utilizes a lithium bromide generator to heat lithium bromide solution, and then carries out heating and heat supply operation through heat exchange with a heating and heat supply heat exchanger. Because certain heat loss is generated once per heat exchange, not only lithium bromide absorption refrigerating and heating efficiency is caused, but also certain lithium bromide solution is consumed, and the overall heating cost performance is low. The utility model directly utilizes heat storage and heating to supply heat, omits the heat exchange loss and the consumption of lithium bromide solution, and can further improve the comprehensive cost performance of refrigeration and heating of lithium bromide absorption refrigeration.

In operation, the conversion of refrigerating, air conditioning and heating is realized by the mutual conversion of the winter/summer switching valve 144, the winter/summer switching valve 145, the winter/summer switching valve 146 and the winter/summer switching valve 147.

The winter/summer switching valve 144, the winter/summer switching valve 146 and the winter/summer switching valve 147 are opened and the winter/summer switching valve 145 is closed when the summer is refrigerated, and the heat conduction oil 82 heats the lithium bromide high-temperature concentrated solution 29 through the heat conduction oil heat exchange circulating pump 96 and the circulating generator 26, so that the summer refrigeration operation is realized; when heating and supplying heat in winter, the winter/summer switching valve 145 and the winter/summer switching valve 144 are opened, and the winter/summer switching valve 146 and the winter/summer switching valve 147 are closed, so that heating and supplying heat in winter is realized. Otherwise, the same as in fig. 7 and fig. 14 are not repeated.

FIG. 16 is a schematic illustration of a refractory brick heat and molten salt heat storage and transfer and conduction oil heat storage and transfer type lithium bromide absorption refrigeration embodiment of the utility model. Fig. 16 is a schematic diagram of an ultra-high temperature heat storage device formed by a solid apparent heat storage device 148, a high temperature refractory material or refractory brick 149, a fused salt or phase change material heat exchanger 150, a solid heat storage power supply 151, a solid electric heating device 152, a fused salt or phase change material circulating pump 153, a fused salt or phase change material interface 154, a fused salt or phase change material interface 155, a high temperature heat insulation and heat preservation material 156 and a solid apparent heat storage device external heat preservation protective layer 185 on the basis of fig. 8. The innovation is to utilize the solid state obviously heat storage device 148 to store higher heat than molten salt to increase the energy storage capacity.

During operation, the solid obvious heat storage device 148 stores heat at about 1000-1250 ℃ and the molten salt 13 in the molten salt heat storage inner shell 12 is heated to about 900 ℃ by the molten salt or phase change material circulating pump 153 through the molten salt or phase change material interface 154, and is circulated to the molten salt or phase change material heat exchanger 150 by the molten salt or phase change material interface 155, and is heated by the solid electric heating device 152 through the molten salt or phase change material heat exchanger 150, and then the circulation is continuously repeated by the molten salt or phase change material circulating pump 153, so that the ultrahigh temperature heating operation is realized.

The heating temperature of the electric heating tube cannot be too high, otherwise, the electric heating wire can be gasified. Fig. 16 is the same as fig. 8 except that the solid state heat storage device 148 is clearly shown and is not repeated.

FIG. 17 is an embodiment of an electromagnetic vortex heating conduction oil heat storage device of the present utility model. In fig. 17-1, an electromagnetic eddy current heating heat conduction oil heat storage device is formed by an electromagnetic heat storage outer shell 169, an electromagnetic heat storage inner shell 170, an electromagnetic vacuum or/and high temperature heat insulation material 171, an electromagnetic induction disc induction coil 172, an electromagnetic induction disc 173, a first coil joint 174, a second coil joint 175, a high-frequency power distribution control device 176, a ceramic heat insulation layer 177, an electromagnetic heat storage power supply 178, magnetic force lines 179, a first electromagnetic heat conduction oil output interface 180, a second electromagnetic heat conduction oil output interface 181 and an electromagnetic heat storage inner shell electromagnetic induction coil 182.

Fig. 17-2 and 17-3 show an electromagnetic induction plate 173, unlike the above-mentioned heating method by an electrothermal tube, the electromagnetic induction plate 173 is disposed below the electromagnetic heat storage inner housing 170, an electromagnetic induction plate induction coil 172 of the electromagnetic induction plate 173, a high-frequency distribution control device 176 supplies a high-frequency current to the electromagnetic induction plate induction coil 172, when the electromagnetic induction plate induction coil 172 is supplied with the high-frequency current, a high-frequency magnetic field is generated around the electromagnetic induction plate 173, the high-frequency magnetic field generated by electromagnetic induction forms a large number of magnetic lines 179, and when the magnetic lines 179 pass through the bottom plate of the electromagnetic heat storage inner housing 170 made of iron, an electromagnetic vortex is generated at the bottom plate in the electromagnetic heat storage inner housing 170, and the vortex causes the bottom plate of the electromagnetic heat storage inner housing 170 to generate heat, thereby realizing heating of the heat conduction oil in the electromagnetic heat storage inner housing 170. Fig. 17-4 show that the electromagnetic induction coil 182 of the electromagnetic heat storage inner housing is wound on the cylinder of the electromagnetic heat storage inner housing 170, so that the magnetic force lines 179 pass through the cylinder of the electromagnetic heat storage inner housing 170 to form eddy currents, and the cylinder of the electromagnetic heat storage inner housing 170 generates heat.

FIG. 17 is a schematic diagram showing that the heating device is separated from the heat conducting oil for heating, so that the safety of the heating device is improved.

FIG. 18 is a schematic diagram showing an embodiment of the molten salt heat storage device according to the present utility model. In the figure, the heat insulation of the figure 18-1 is realized by utilizing the vacuum insulation principle that the space between the fused salt heat storage

outer shell

11, 97 and 140 and the fused salt heat storage

inner shell

12, 98 and 141 is pumped into a vacuum state 157, and the heat insulation is realized by utilizing the vacuum insulation principle. Fig. 18-2 shows that a high-temperature heat insulation material 156 is filled between the molten salt heat storage

outer shell

11, 97, 140 and the molten salt heat storage

inner shell

12, 98, 141, and heat insulation is realized by using the high-temperature heat insulation material 156. Fig. 18-3 illustrates that the high-temperature heat insulation and preservation material 156 is filled between the molten salt heat storage

outer shell

11, 97, 140 and the molten salt heat storage

inner shell

12, 98, 141, and is pumped into the vacuum heat insulation state 157, the heat insulation is realized by using the high-temperature heat insulation and preservation material 156, meanwhile, the heat stability strength between the molten salt heat storage

outer shell

11, 97, 140 and the molten salt heat storage

inner shell

12, 98, 141 is enhanced, and the heat insulation and preservation degree is further increased by using the vacuum heat insulation state 157. Fig. 18-4 show a single-phase electric power supply fused salt heat storage and exchange heat insulation structure.

Fig. 19 is a schematic diagram showing an embodiment of a heat-conducting oil heat-storing device according to the present utility model. In fig. 19, the heat-conducting oil heat-storing and heat-exchanging

outer casings

80, 89, 158 and the heat-conducting oil heat-storing and heat-exchanging

inner casings

81, 90, 159 are evacuated to a vacuum state 157, and heat preservation and heat insulation are realized by utilizing the vacuum heat insulation principle. Fig. 19-2 illustrates that the high-temperature heat insulation and preservation material 156 is filled between the heat conduction oil heat storage and exchange

outer shell

80, 89, 158 and the heat conduction oil heat storage and exchange

inner shell

81, 90, 159, and is pumped into the vacuum heat insulation state 157, the heat insulation is realized by using the high-temperature heat insulation and preservation material 156, meanwhile, the heat stability strength between the fused salt heat storage

outer shell

11, 97, 140 and the fused salt heat storage

inner shell

12, 98, 141 is enhanced, and the heat insulation and preservation degree is further increased by using the vacuum heat insulation state 157. Fig. 19-3 illustrates that a high-temperature heat insulation material 156 is filled between the heat-conducting oil heat-storing and heat-exchanging

outer casings

80, 89, 158 and the heat-conducting oil heat-storing and heat-exchanging

inner casings

81, 90, 159, and the heat insulation is realized by using the high-temperature heat insulation material 156. Fig. 19-4 show a heat storage, heat exchange and heat insulation structure of single-phase electric power supply heat conduction oil. Fig. 19-5 are schematic structural diagrams of the heat transfer oil heat exchange device.

To sum up: the present application now has the following effects with respect to the prior art:

1. the energy storage system has the beneficial effects that the energy storage system in the form of heat storage and refrigeration in summer can be widely applied to a central air conditioning system of a building and can be used as the energy storage central air conditioning system. The energy storage capacity is huge, and the energy storage market of the whole country is penetrated.

2. The utility model has the beneficial effects that the heat storage efficiency reaches 96 percent, and the heat storage is directly sold to a central air conditioning system user, so that the energy storage is realized for a power grid, and a great energy saving benefit is brought to the user. Avoiding the energy storage of pumping water and compressed air without economic benefit.

3. The utility model is used for energy storage of wind and photovoltaic green electric energy, and has the advantages of safety, high efficiency, energy saving and low one-time investment compared with battery energy storage, air compressor energy storage and water pumping energy storage. Under the bottleneck that downwind and photovoltaic power generation are subjected to energy storage, the heat storage absorption type refrigerator is a very ideal all-weather energy storage equipment option.

4. The utility model also has the advantage of implementing the montreal protocol, limiting and forming "refrigerants" (one of the most significant greenhouse effects caused by ozone depletion). Because the absorption refrigerator does not use any ozone layer-destroying refrigerant at all, water is its refrigerant, and lithium bromide is the absorbent.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The heat storage absorption refrigerator is characterized by comprising a heat storage device (1) and an absorption refrigerator (2);

the heat output end of the heat storage device (1) is connected with the heat input end of the absorption refrigerator (2);

the heat storage device (1) comprises a phase change heat storage device (3) or a sensible heat storage device (4);

the phase change heat storage device (3) comprises a molten salt heat storage device (5) or a metal phase change heat storage device (6);

the sensible heat storage device (4) comprises a high-temperature refractory material or refractory brick heat storage device (7) or a heat conducting oil heat storage device (8);

the absorption refrigerator (2) comprises a lithium bromide absorption refrigerator (9), an ammonia water absorption refrigerator (10) or a steam jet refrigerator (184).

2. The heat storage absorption refrigerator according to claim 1, characterized in that the heat storage device (1) is a molten salt heat storage device (5), and the absorption refrigerator (2) is a lithium bromide absorption refrigerator (9);

the molten salt heat storage device (5) comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt (13), a power supply, an electric heating device and a molten salt circulating pump;

the molten salt (13) is arranged in the molten salt heat storage inner shell, and the electric heating device is arranged in the molten salt (13);

the lithium bromide absorption refrigerator (9) comprises an upper cylinder (18) and a lower cylinder (19);

the upper cylinder (18) comprises a condenser (20), a generator and lithium bromide solution; the lithium bromide solution is arranged in the upper cylinder (18), the generator is arranged in the lithium bromide solution, the condenser (20) is arranged above the generator, and the condensed water receiving disc (23) is arranged below the condenser (20);

one end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and is communicated with the molten salt (13), the other end of the molten salt circulating pump is connected with one end of the generator, and the other end of the generator is connected with the molten salt heat storage inner shell and is communicated with the molten salt (13);

The lower cylinder body (19) comprises an evaporator (34), a refrigerant pump (40), a spraying device (32), a solution spraying device (42), an absorber (43), lithium bromide solution, a solution purifying pump (48), a solution spraying pump (50), a concentrated solution storage cylinder (51), concentrated solution (52), a concentrated solution drain pipe (53) and a solution heat exchanger (56);

an evaporator water pan (37) is arranged below the evaporator (34), the evaporator water pan (37) is arranged above the absorber (43), the solution spraying device (42) is arranged above the absorber (43), and the absorber (43) is arranged above the lithium bromide solution;

one end of the refrigerant pump (40) is connected with the evaporator water receiving disc (37), the other end of the refrigerant pump (40) is connected with the spraying device (32), and the spraying device (32) is arranged on the evaporator (34);

one end of the solution purification pump (48) is connected with the lower end of the lower cylinder (19) and is communicated with the lithium bromide solution, the other end of the solution purification pump (48) is connected with the lower end of the upper cylinder (18) through a primary side (58) of the solution heat exchanger (56) and is communicated with the lithium bromide solution, one end of the solution spray pump (50) is connected with the lower end of the lower cylinder (19) and is communicated with the lithium bromide solution, the other end of the solution spray pump (50) is connected with the solution spray device (42), one end of a secondary side (57) of the solution heat exchanger (56) is connected with the lower part of the upper cylinder (18) and is communicated with the lithium bromide solution, and the other end of the secondary side (57) of the solution heat exchanger (56) is connected with the concentrated solution storage cylinder (51) and is communicated with the concentrated lithium bromide solution in the concentrated solution storage cylinder (51).

3. The heat storage absorption refrigerator according to claim 1, wherein the heat storage device (1) is a heat transfer oil heat storage device (8), and the absorption refrigerator (2) is a lithium bromide absorption refrigerator (9);

the heat conducting oil heat storage device (8) comprises a heat conducting oil heat storage outer shell (80), a heat conducting oil heat storage inner shell, heat conducting oil (82), a power supply, an electric heating device and a heat conducting oil circulating pump (87);

the heat conducting oil (82) is arranged in the heat conducting oil heat storage inner shell, and the electric heating device is arranged in the heat conducting oil (82);

one end of the heat conducting oil circulating pump (87) is connected with the heat conducting oil heat storage inner shell and is communicated with the heat conducting oil (82), the other end of the heat conducting oil circulating pump (87) is connected with one end of a generator in the upper cylinder body (18), and the other end of the generator is connected with the heat conducting oil heat storage inner shell and is communicated with the heat conducting oil (82).

4. A heat storage absorption chiller according to claim 2 or 3 wherein the heat storage means comprises a phase change heat storage means (3) and a sensible heat storage means (4);

the absorption refrigerator (2) comprises a lithium bromide absorption refrigerator (9);

The phase-change heat storage device (3) comprises a molten salt heat storage device (5), wherein the molten salt heat storage device (5) comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt (13), a power supply, an electric heating device, a molten salt heat exchanger and a molten salt heat exchange circulating pump (95), and the molten salt heat exchanger is configured in the molten salt (13);

the sensible heat storage device (4) further comprises a heat conducting oil heat storage device (8), wherein the heat conducting oil heat storage heat exchange device comprises a heat conducting oil heat storage heat exchange outer shell, a heat conducting oil heat storage heat exchange inner shell, heat conducting oil (82) and a heat conducting oil output circulating pump (96), and the heat conducting oil (82) is configured in the heat conducting oil heat storage heat exchange inner shell;

one end of the molten salt heat exchange circulating pump (95) is connected with the heat conducting oil heat storage and exchange inner shell and is communicated with the heat conducting oil (82), the other end of the molten salt heat exchange circulating pump (95) is connected with one end of the molten salt heat exchanger, and the other end of the molten salt heat exchanger is connected with the heat conducting oil heat storage and exchange inner shell and is communicated with the heat conducting oil (82);

one end of the heat conduction oil output circulating pump (96) is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil (82), the other end of the heat conduction oil output circulating pump (96) is connected with one end of the generator, and the other end of the generator is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil (82).

5. The heat storage absorption refrigerator according to claim 4, wherein the heat storage absorption refrigerator is provided with a two-stage molten salt heat storage device, a heat conduction oil heat storage and exchange device and an absorption lithium bromide refrigerator;

the two-stage molten salt heat storage device comprises a first-stage molten salt heat storage device and a second-stage molten salt heat storage device;

the first-stage molten salt heat storage device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt (13), a power supply, an electric heating device and a molten salt circulating pump;

the second-stage molten salt heat storage device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt (13), an electric heating device, a power supply, a molten salt heat exchanger and a molten salt heat exchange circulating pump (95);

the heat conduction oil heat storage and exchange device comprises a heat conduction oil heat storage and exchange outer shell, a heat conduction oil heat storage and exchange inner shell, heat conduction oil (82) and a heat conduction oil output circulating pump (96);

one end of the molten salt circulating pump is connected with the inner shell and communicated with the molten salt (13), the other end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with the molten salt (13), and the molten salt heat storage inner shell is connected with the molten salt heat storage inner shell and communicated with the two-stage molten salt (13);

6. The heat storage absorption refrigerator according to claim 5, wherein the heat storage absorption refrigerator is configured with a phase change heat storage device (3), a sensible heat storage device (4), a double effect lithium bromide absorption refrigerator;

the sensible heat storage device (4) comprises a heat conducting oil heat storage device (8), wherein the heat conducting oil heat storage heat exchange device comprises a heat conducting oil heat storage heat exchange outer shell, a heat conducting oil heat storage heat exchange inner shell, heat conducting oil (82) and a heat conducting oil output circulating pump (96), and the heat conducting oil (82) is configured in the heat conducting oil heat storage heat exchange inner shell;

The three-cylinder double-effect lithium bromide absorption refrigerator comprises a high-temperature generation cylinder (65), a low-temperature generation cylinder (68) and a lower cylinder (19);

the high-temperature generating cylinder (65) comprises a high-temperature generator (62), a high-temperature lithium bromide solution (63), a high-temperature heat exchanger, a high-temperature dilution liquid return port (69) and a high-temperature solution heat exchanger (73);

the low-temperature generation cylinder (68) comprises a condenser (20), a low-temperature lithium bromide solution (64), a low-temperature generator, a low-temperature dilution liquid return port (71) and a low-temperature solution heat exchanger (74);

the lower cylinder (19) comprises a spraying device (32), an evaporator (34), a refrigerant pump (40), a solution spraying device (42), an absorber (43), lithium bromide solution and a lithium bromide solution pump (72);

one end of the heat conducting oil output circulating pump (96) is connected with the heat conducting oil heat storage and exchange inner shell and is communicated with the heat conducting oil (82), the other end of the heat conducting oil output circulating pump (96) is connected with one end of the high-temperature generator (62), and the other end of the high-temperature generator (62) is connected with the heat conducting oil heat storage and exchange inner shell and is communicated with the heat conducting oil (82);

One end of the lithium bromide solution pump (72) is connected with the lower cylinder body (19) and is communicated with the lithium bromide solution, a first path of the other end of the lithium bromide solution pump (72) is connected with the solution spraying device (42) through the concentrated solution storage cylinder (51), a second path of the other end of the lithium bromide solution pump is connected with one end of the high-temperature heat exchanger through a first heat exchange side of the low-temperature solution heat exchanger (74), the other end of the high-temperature heat exchanger is connected with the low-temperature dilution liquid return port (71), and a third path of the other end of the high-temperature heat exchanger is connected with the high-temperature dilution liquid return port (69) through a second heat exchange side of the low-temperature solution heat exchanger (74).

7. The heat storage absorption refrigerator according to claim 6, wherein a molten salt heat storage steam device and a two-cylinder single-effect steam lithium bromide absorption refrigerator are configured;

the fused salt heat storage steam device comprises a fused salt heat storage outer shell, a fused salt heat storage inner shell, fused salt (13), a power supply, an electric heating device, a steam generating device (99), a water pump (105), a steam storage tank outer shell (108), a steam storage tank inner shell (109), steam (111) and a valve (113);

one end of the water pump (105) is connected with one end of the steam generating device (99), the other end of the water pump (105) is connected with the water source interface (106), and the other end of the steam generating device (99) is connected with the steam storage tank inner shell (109) and is communicated with steam (111);

One end of the valve (113) is connected with the steam storage tank inner shell (109) and is communicated with steam (111), the other end of the valve (113) is connected with one end of the generator, and the other end of the generator is connected with condensate (59).

8. The heat storage absorption chiller according to claim 7 wherein a two-stage heat storage steam unit and a two-drum single-effect steam lithium bromide chiller are provided;

the two-stage heat storage steam device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt (13), a power supply and an electric heating device, wherein a molten salt circulating pump, the molten salt heat storage outer shell, the molten salt heat storage inner shell, molten salt (13), the power supply, the electric heating device, a steam generation device (99), a water pump (105), a steam storage tank outer shell (108), a steam storage tank inner shell (109), steam (111) and a valve (113);

one end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with the molten salt (13), the other end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with the molten salt (13), and the molten salt heat storage inner shell is connected with the molten salt heat storage inner shell and communicated with the two-stage molten salt (13).

9. The heat storage absorption refrigerator according to claim 6, 7 or 8, wherein a two-stage molten salt heat storage and conduction oil heat storage and exchange steam device and a steam double-effect lithium bromide refrigerator are configured;

the two-stage molten salt heat storage device comprises a molten salt heat storage outer shell, a molten salt heat storage inner shell, molten salt (13), a power source and an electric heating device, wherein a molten salt circulating pump, the molten salt heat storage outer shell, the molten salt heat storage inner shell, the molten salt (13), the electric heating device, the power source, a molten salt heat exchanger and a molten salt heat conduction oil heat exchange pump (118);

the heat conduction oil heat storage and exchange steam device comprises a heat conduction oil heat storage and exchange steam outer shell (119), a heat conduction oil heat storage and exchange steam inner shell (120), heat conduction oil (82), a heat conduction oil steam generator (121), a water pump (105), a steam storage tank outer shell (108), a steam storage tank inner shell (109), steam (111) and a valve (113);

the double-effect lithium bromide absorption refrigerator comprises a high-temperature generation cylinder (65), a low-temperature generation cylinder (68) and a lower cylinder body (19); the high-temperature generating cylinder (65) comprises a high-temperature generator (62) and a high-temperature heat exchanger; the low-temperature generation cylinder (68) comprises a low-temperature generator, a condenser (20), a lithium bromide solution pump (72), a high-temperature solution heat exchanger (73) and a low-temperature solution heat exchanger (74);

One end of the molten salt heat conduction oil heat exchange pump (118) is connected with the heat conduction oil heat storage and exchange steam inner shell (120) and is communicated with heat conduction oil (82), the other end of the molten salt heat exchange pump (118) is connected with one end of the molten salt heat exchanger, and the other end of the molten salt heat exchanger is connected with the heat conduction oil heat storage and exchange steam inner shell (120) and is communicated with heat conduction oil (82);

one end of the lithium bromide solution pump (72) is connected with the lower cylinder (19) and is communicated with the lithium bromide dilute solution (46), the other end of the lithium bromide solution pump (72) is output in three ways, the first way is connected with the solution spraying device (42) through the concentrated solution storage cylinder (51), the second way is connected with one end of the high-temperature heat exchanger through one side heat exchange end of the low-temperature solution heat exchanger (74), the other end of the high-temperature heat exchanger is communicated with the low-temperature dilution liquid return port (71) of the low-temperature generation cylinder (68), the third way is connected with one end of the high-temperature solution heat exchanger (73) through the heat exchange end of the other side of the low-temperature solution heat exchanger (74), and the other end of the high-temperature solution heat exchanger (73) is connected with a diluted lithium bromide solution liquid outlet and is communicated with the high-temperature generation cylinder (65);

one end of the valve (113) is connected with the steam storage tank inner shell (109) and is communicated with steam (111), the other end of the valve (113) is connected with one end of the high-temperature generator (62), and the other end of the high-temperature generator (62) is connected with condensate (59).

10. The heat storage absorption refrigerator according to claim 9, wherein a two-stage molten salt heat storage device, a heat conduction oil heat storage and exchange device and a direct-fired lithium bromide absorption refrigerator are configured;

the direct-fired lithium bromide absorption refrigerator is provided with a high-temperature generator (62) and a high-temperature lithium bromide solution (63); the high-temperature generator (62) is configured in the high-temperature lithium bromide solution (63) in the original lithium bromide direct-fired furnace body (163), one end of the high-temperature generator (62) is connected with the heat conduction oil heat storage and exchange inner shell through the heat conduction oil output circulating pump (96) and is communicated with the heat conduction oil (82), and the other end of the high-temperature generator (62) is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil (82).

11. The heat storage absorption refrigerator according to claim 10, wherein a two-stage molten salt heat storage device, a conduction oil heat storage and exchange device and a heating and heat supply system are configured;

the heating system comprises a hot water heat exchange water tank outer box body (126), a hot water heat exchange water tank inner box body (127), hot water (129), a hot water heat exchanger (130), a heating and heat supply circulating pump (133), a radiator (134) or a floor pipe (135) or a fan coil (136), and/or a domestic hot water heat exchanger (137) and a shower nozzle (138);

One end of the hot water heat exchanger (130) is connected with the heat conduction oil heat storage and exchange inner shell through a heat conduction oil output circulating pump (96) and is communicated with the heat conduction oil (82), and the other end of the hot water heat exchanger (130) is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil (82);

one end of the heating and heat supplying circulating pump (133) is connected with the inner box body (127) of the hot water heat exchanging water tank and is communicated with hot water (129), the other end of the heating and heat supplying circulating pump (133) is connected with one end of the radiator (134) or the ground coil (135) or the fan coil (136) and/or the domestic hot water heat exchanger (137), the other end of the radiator (134) or the ground coil (135) or the fan coil (136) and/or the domestic hot water heat exchanger (137) is connected with the inner box body (127) of the hot water heat exchanging water tank and is communicated with hot water (129), and the shower nozzle (138) is connected with a tap water interface (139) through the domestic hot water heat exchanger (137).

12. The heat storage absorption refrigerator according to claim 11, wherein a single-phase power supply molten salt heat storage, a heat conduction oil heat storage and exchange device, a lithium bromide absorption refrigerator and a heating and heat supply system are configured;

the single-phase power supply molten salt heat storage and conduction oil heat storage heat exchange device comprises a single-phase power supply molten salt heat storage outer shell, a single-phase power supply molten salt heat storage inner shell, a single-phase power supply (142), an electric heating device, a molten salt pump, a molten salt output heat exchanger, a molten salt heat exchange circulating pump (95), a conduction oil heat storage heat exchange outer shell, a conduction oil heat storage heat exchange inner shell, conduction oil (82), a conduction oil output circulating pump (96), a first winter and summer switching valve, a second winter and summer switching valve, a third winter and summer switching valve and a fourth winter and summer switching valve;

One end of the molten salt output heat exchanger is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with heat conduction oil (82), and the other end of the molten salt output heat exchanger is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil (82);

one end of the heat conduction oil output circulating pump (96) is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with heat conduction oil (82), the other end of the heat conduction oil output circulating pump (96) is respectively connected with one ends of the second winter-summer switching valve and the fourth winter-summer switching valve, the other end of the second winter-summer switching valve is connected with one end of the hot water heat exchanger (130), the other end of the fourth winter-summer switching valve is connected with one end of the high temperature generator, one end of the first winter-summer switching valve is connected with the heat conduction oil heat storage and exchange inner shell and is communicated with the heat conduction oil (82), the other end of the first winter-summer switching valve is connected with one end of the third winter-summer switching valve, the other end of the third winter-summer switching valve is connected with the other end of the high temperature generator, and the other end of the first winter-summer switching valve is also connected with the other end of the hot water heat exchanger (130).

13. The heat storage absorption refrigerator according to claim 12, wherein a high-temperature refractory material or refractory brick heat storage device (7) and a two-stage molten salt heat storage oil heat storage and exchange device, a heat transfer oil heat storage and exchange device and a lithium bromide refrigerator are configured;

the high-temperature refractory material or refractory brick heat storage device (7) comprises a refractory brick heat storage device, refractory bricks (149), a molten salt heat exchange device (150), a power supply, an electric heating device and a molten salt circulating pump;

the electric heating device is arranged in the refractory brick (149) of the refractory brick heat storage device, and the fused salt heat exchange device (150) is arranged in the refractory brick (149);

one end of the molten salt circulating pump is connected with one end of the molten salt heat exchange device (150), the other end of the molten salt circulating pump is connected with the molten salt heat storage inner shell and communicated with molten salt (13), and the other end of the molten salt heat exchange device (150) is connected with the molten salt heat storage inner shell and communicated with molten salt (13).

14. A heat storage absorption chiller according to claim 3 wherein the heat transfer oil heat storage means (8) comprises an electromagnetic heat storage outer housing (169), an electromagnetic heat storage inner housing (170), an electromagnetic vacuum or/and high temperature insulating material (171), an electromagnetic induction disc induction coil (172), an electromagnetic induction disc (173), a first coil joint (174), a second coil joint (175), a high frequency distribution control means (176), a ceramic insulation layer (177), an electromagnetic heat storage power supply (178), magnetic lines of force (179), a first electromagnetic heat transfer oil output interface (180), a second electromagnetic heat transfer oil output interface (181), an electromagnetic heat storage inner housing electromagnetic induction coil (182);

The electromagnetic heat storage inner shell (170) is arranged on the ceramic heat insulation layer (177), the electromagnetic induction plate (173) is arranged below the ceramic heat insulation layer (177), the electromagnetic induction plate induction coil (172) is arranged in the electromagnetic induction plate (173), the electromagnetic heat storage power supply (178) supplies power to the high-frequency power distribution control device (176), the high-frequency power distribution control device (176) supplies high-frequency power to the electromagnetic induction plate induction coil (172), the electromagnetic induction plate induction coil (172) generates an electromagnetic field, and the magnetic force lines (179) of the electromagnetic induction plate induction coil penetrate through the electromagnetic heat storage inner shell (170);

the electromagnetic heat storage inner shell electromagnetic induction coil (182) is configured outside the electromagnetic heat storage inner shell (170).

15. The heat storage absorption refrigerator according to any one of claims 5, 6, 7, 8, 10, 11, 12, and 13, wherein a vacuum heat insulation (157) or a high-temperature heat insulation material (156) or a double heat insulation structure of a combination of the vacuum heat insulation (157) and the high-temperature heat insulation material (156) is provided between the molten salt heat storage outer case and the molten salt heat storage inner case.

16. Heat storage absorption refrigerator according to any one of claims 5, 6, 10, 11, 12 and 13, wherein a vacuum insulation (157) or a high temperature insulation material (156) or a composite double insulation structure of vacuum insulation (157) and high temperature insulation material (156) is arranged between a heat transfer oil heat storage outer casing (80) provided with a heat transfer oil heat storage heat exchange device and a heat transfer oil heat storage heat exchange inner casing.