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Supercharged three-phase absorbing type energy storage device

An absorption energy storage, three-phase technology, applied in the direction of adsorption machines, energy industry, heat storage equipment, etc., can solve the problems of affecting the absorption effect, inability to absorb, large pressure loss, etc., to improve efficiency and energy storage density, The significance of significant energy saving and emission reduction, the effect of increasing the heating temperature

Inactive Publication Date: 2013-05-08
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this technical solution still has the following disadvantages: ①The generator and the condenser, the absorber and the evaporator are connected by pipelines, the density of the refrigerant vapor is very low under vacuum conditions, and the pressure loss caused by pipeline resistance is relatively large, especially in the absorption process In the process, the loss of pressure will seriously affect the absorption effect, or even make it impossible to absorb; ②In the process of energy storage or energy release, the natural vapor partial pressure difference often cannot meet the requirements of energy storage or energy release, or in order to achieve a certain vapor distribution The pressure difference often requires a higher generation temperature, and for solar collectors, the higher the heating temperature, the lower the efficiency, therefore, it brings great limitations to the heat utilization of solar energy; ③The cooling capacity of the device Or the heat supply is limited by the temperature difference between the heat exchanger and the solution and the external fluid, which is inconvenient to adjust and control

Method used

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  • Supercharged three-phase absorbing type energy storage device
  • Supercharged three-phase absorbing type energy storage device
  • Supercharged three-phase absorbing type energy storage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: No pressurization process such as image 3 shown

[0021] The schematic diagram of the conventional energy storage or energy release process is as follows: image 3 As shown, the isolation valve 20 and the bypass valve 19 are opened, and the supercharger 16 and the reversing valve 17 are short-circuited.

[0022] When energy is stored, the solution 6 from the bottom of the solution tank 2 is sprayed onto the generator by the solution pump 12 through the solution circuit 13 and the solution spraying device 14 . The solution 6 desorbs the refrigerant vapor under the heating of the external driving heat source. The refrigerant vapor passes through the refrigerant vapor pipeline 15 and enters the condenser to condense. The condensed refrigerant is stored in the bottom of the refrigerant tank 1 in liquid form, and desorbed The final concentrated solution is then stored at the bottom of the solution tank 2. When the solution is continuously concentrated, the ...

Embodiment 2

[0025] Embodiment 2: supercharging energy storage process such as Figure 4 shown

[0026] The supercharging energy storage process is as Figure 4As shown, open the isolation valve 20, close the bypass valve 19, the first heat exchanger 3 is used as a condenser, and the second heat exchanger 4 is used as a generator; the a port of the reversing valve 17 is connected with the refrigerant tank 1, The b port of the reversing valve 17 is connected with the gas outlet of the supercharger 16, and the c port of the reversing valve 17 is connected with the solution tank 2; the d port of the reversing valve 17 is connected with the air inlet of the supercharger 16; Port a of the valve 17 communicates with port b, and port c communicates with port d.

[0027] The solution 6 from the bottom of the solution tank 2 is sprayed onto the generator by the solution pump 12 through the solution circuit 13 and the solution spraying device 14 . The solution 6 desorbs the refrigerant vapor unde...

Embodiment 3

[0029] Embodiment 3: pressurized energy release process such as Figure 5 shown

[0030] The pressurized energy release process is as Figure 5 As shown, the first heat exchanger 3 is used as an evaporator, and the second heat exchanger 4 is used as an absorber; port a of the reversing valve 17 is connected to the refrigerant tank 1, and port b of the reversing valve 17 is connected to the supercharger The gas outlet of 16 links to each other, and the c port of reversing valve 17 links to each other with solution tank 2; The d port of reversing valve 17 links to each other with the air inlet of supercharger 16; The mouth is connected with the c mouth.

[0031] The refrigerant 5 from the bottom of the refrigerant tank 1 is sprayed onto the evaporator by the refrigerant pump 9 through the refrigerant circuit 10 and the refrigerant spraying device 11 , and the liquid refrigerant is heated and becomes refrigerant vapor to produce a cooling effect. The refrigerant vapor passes t...

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Abstract

The invention discloses a supercharged three-phase absorbing type energy storage device and belongs to the fields of refrigeration, heating and energy storage. An existing three-phase absorbing type energy storage device has the problems that needed generating temperature is high, pressure is wasted, generating capacity or absorbing capacity is reduced accordingly and the like. The supercharged three-phase absorbing type energy storage device is characterized in that a reversing valve and a supercharger which can be adjusted in a frequency conversing mode are connected in the existing three-phase absorbing type energy storage device. The device enhances generating effect during an energy storage process, reduces the generating temperature needed by an energy storage machine set, and enhances absorbing effect during an energy releasing process. In addition, heat-supplying temperature can be improved during a heat-supplying process, energy storage density can be improved during a refrigerating process, and different output of refrigerating quantity and heat-supplying quantity can be realized through frequency conversion adjustment. The supercharged three-phase absorbing type energy storage device is applied to the fields like solar energy utilization, industrial waste heat utilization and combined cooling heating and power, greatly eases the problems that a motive power source side and a user side are not matched in space, time and quantity, and has great energy conservation and emission reduction significance.

Description

technical field [0001] The invention is a pressurized three-phase absorption energy storage device, which belongs to the field of refrigeration, heating and energy storage, and is especially suitable for the utilization of renewable energy such as solar energy and geothermal energy, waste heat recovery, combined cooling, heating and power supply systems and other fields. . Background technique [0002] Energy storage technology is a means to solve the mismatch between energy supply and demand in terms of time, space and intensity to improve energy utilization, and it is also an important energy-saving method. Renewable energy such as solar energy has great development potential in the future. Due to its periodic, random, low-density, and low-grade energy supply characteristics, energy storage technology will play a vital role in its utilization. Among various thermal energy storage technologies, sensible heat and latent heat (phase change) energy storage technology is the m...

Claims

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Application Information

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IPC IPC(8): F25B17/02F28D20/00F25B41/00F25B41/04F25B41/20F25B41/40
CPCY02E70/30Y02B30/62Y02E60/142Y02P80/15Y02A30/27Y02E60/14
Inventor 李先庭张晓灵石文星李子爱王宝龙
Owner TSINGHUA UNIV
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