CN213816246U

CN213816246U - High-density electricity storage device

Info

Publication number: CN213816246U
Application number: CN202022596845.5U
Authority: CN
Inventors: 秦伯进; 朱正贵; 卜慧; 程安生
Original assignee: Jiangsu Josun Air Conditioner Co Ltd
Current assignee: Jiangsu Josun Air Conditioner Co Ltd
Priority date: 2020-11-11
Filing date: 2020-11-11
Publication date: 2021-07-27
Anticipated expiration: 2030-11-11

Abstract

The utility model relates to a high density electricity storage device, including storage battery, evenly set up a plurality of cold plates in the storage battery, the compressor exhaust is seen off after condenser, drier-filter fishplate bar heat exchanger flow, sees off and connects cold plate one end import through solenoid valve, expansion valve, sees off after another flow of cold plate other end export fishplate bar heat exchanger, sees off and connects the backpressure indentation to admit air through vapour and liquid separator. The device has the characteristics of stable working performance, small volume, compact structure, low noise, convenience in operation and the like, is suitable for the field of offshore wind power generation projects, and can effectively solve the problem that the electricity storage device cannot be fully utilized due to temperature change, so that the economic benefit is improved.

Description

High-density electricity storage device

Technical Field

The utility model relates to an electricity storage device, a high density electricity storage device specifically says so.

Background

In recent years, with the rapid development of global economy, because wind power generation has no fuel problem and cannot generate radiation or air pollution, offshore wind power becomes new power for the development of the wind power industry in China by virtue of various advantages, electric power generated by a wind power generator is subjected to voltage transformation rectification and then is charged to an electricity storage device, chemical energy is stored in a battery, and when wind power is weakened or disappears, discharge is carried out to drive a low-voltage electric appliance, so that the electricity utilization problem of a region far away from a power grid is solved, but the performance problem of the storage battery follows, and the temperature is a main factor influencing the capacity of the storage battery. The higher the temperature, the greater the capacity of the storage battery. The capacity of the storage battery and the specific gravity of the electrolyte are changed along with the change of temperature, because the temperature influences the internal resistance of the storage battery. The temperature is of course limited, not infinite. It is seen that it is essential that the temperature be maintained within a certain range. The optimum temperature is 25 c, at which the battery can reach its rated capacity. If the temperature is too high or too low, the capacity of the storage battery is influenced, and the polar plate can be damaged; on the other hand, the temperature also affects the specific gravity of the electrolyte of the storage battery. In order to fully use the storage battery in the wind power generation area, the temperature inside the storage device needs to be controlled.

Disclosure of Invention

The utility model provides a can effectively utilize the cold drawing to carry out the high density accumulate device of cooling to storage battery.

The utility model adopts the technical proposal that: a high-density electricity storage device includes an electricity storage cell, characterized in that: evenly set up a plurality of cold plates in the battery storage, the compressor exhaust is seen off after a procedure through condenser, drier-filter fishplate bar heat exchanger, sees off and connects cold plate one end import through solenoid valve, expansion valve, and the cold plate other end export sees off after another procedure of fishplate bar heat exchanger, sees off and connects back pressure indentation through vapour and liquid separator and admit air.

Further, the cold plates are vertically arranged at even intervals.

And furthermore, after one flow of the plate heat exchanger, the flow is sent out and is connected with an inlet at the lower end of the cold plate through an electromagnetic valve and an expansion valve.

Further, the expansion valve is connected with the cold plate through the gas-liquid separator.

Further, the condenser is connected with a dry filter through a stop valve.

Furthermore, a liquid supplementing interface is connected between the stop valve and the drying filter.

The refrigeration medium is compressed by the compressor to become high-temperature gas, the high-temperature gas is discharged into the condenser, the refrigeration medium is cooled by cooling air to take away heat to become high-pressure liquid, the high-temperature gas is dried and filtered by the drying filter and then is subjected to heat exchange by the plate heat exchanger, the low-pressure liquid is obtained by throttling and depressurizing under the control of the expansion valve and enters the gas-liquid separator, the high-pressure liquid enters the cold plate which is arranged in the battery at high density to perform heat exchange on heat generated in the electricity storage device, the refrigeration medium becomes low-pressure gas after absorbing heat, the low-pressure gas firstly enters the gas-liquid separator and finally enters the compressor again for compression and circulation, and the liquid is effectively prevented from entering the compressor to cause liquid impact to damage the compressor. The dryness of the refrigerant is controlled by a dry filter before entering the cold plate, so that the refrigerant entering the cold plate can be fully evaporated.

The device has the characteristics of stable working performance, small volume, compact structure, low noise, convenience in operation and the like, is suitable for the field of offshore wind power generation projects, and can effectively solve the problem that the electricity storage device cannot be fully utilized due to temperature change, so that the economic benefit is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: the device comprises a compressor 1, a condenser 2, a stop valve 3, a drying filter 4, a plate heat exchanger 5, an electromagnetic valve 6, an expansion valve 7, a first gas-liquid separator 8, a cold plate 9, a battery 10, a second gas-liquid separator 11 and a liquid supplementing interface 12.

Detailed Description

The following examples are further illustrated.

FIG. 1 shows: a high-density electricity storage device comprises a compressor 1, a condenser 2, a stop valve 3, a drying filter 4, a plate heat exchanger 5, an electromagnetic valve 6, an expansion valve 7, a first gas-liquid separator 8, a cold plate 9, an electricity storage battery 10, a second gas-liquid separator 11 and a liquid supplementing interface 12. A plurality of cold plates 9 are uniformly arranged in the storage battery 10, and the cold plates are vertically arranged at uniform intervals. The exhaust gas of the compressor 1 is sent out after passing through a condenser 2, a stop valve 3, a liquid supplementing interface 12 and a drying filter 4 and then connected with a plate heat exchanger 5 in a flow, the exhaust gas is sent out and then connected with the inlet at the lower end of a cold plate through an electromagnetic valve 6, an expansion valve 7 and a first gas-liquid separator 8, the outlet at the upper end of the cold plate is sent out after passing through another flow of the plate heat exchanger, and the exhaust gas is sent out and then returned to the compression inlet gas through a gas-liquid separator 11.

In this embodiment, the plurality of cold plates are uniformly spaced between a plurality of individual cells within the battery, or within a battery body structure of similar construction.

Claims

1. A high-density electricity storage device includes an electricity storage cell, characterized in that: evenly set up a plurality of cold plates in the battery storage, the compressor exhaust is seen off after a procedure through condenser, drier-filter fishplate bar heat exchanger, sees off and connects cold plate one end import through solenoid valve, expansion valve, and the cold plate other end export sees off after another procedure of fishplate bar heat exchanger, sees off and connects back pressure indentation through vapour and liquid separator and admit air.

2. The high-density electricity storage device according to claim 1, wherein: the cold plates are vertically arranged at even intervals.

3. A high-density electricity storage device as defined in claim 2, wherein: and a flow of the plate heat exchanger is sent out and is connected with an inlet at the lower end of the cold plate through the electromagnetic valve and the expansion valve.

4. The high-density electricity storage device according to claim 1, wherein: the expansion valve is connected with the cold plate through the gas-liquid separator.

5. The high-density electricity storage device according to claim 1, wherein: the condenser is connected with a dry filter through a stop valve.

6. The high-density electricity storage device according to claim 5, wherein: and a liquid supplementing interface is connected between the stop valve and the drying filter.