CN218495218U

CN218495218U - Distributed energy storage air conditioner based on phase change material

Info

Publication number: CN218495218U
Application number: CN202222258067.8U
Authority: CN
Inventors: 陆旻杰; 乔宇东; 赖传睿
Original assignee: North China Electric Power University
Current assignee: North China Electric Power University
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-02-17
Anticipated expiration: 2032-08-26

Abstract

The utility model relates to a distributed energy storage air conditioner based on phase change material, including condenser, evaporimeter and surface cooler, it does not communicate respectively to divide equally on two sections circulating line of evaporimeter and surface cooler has first three-way valve and second three-way valve, and be provided with the phase change module that all communicates with both between first three-way valve and the second three-way valve, be provided with the lateral conduit on the pipeline of intercommunication between phase change module and the first three-way valve, and be provided with the second pump that carries out the drive to refrigerant in the phase change module on the lateral conduit, this scheme utilizes the high characteristics of phase change energy storage material sodium sulfate decahydrate or paraffin phase transition latent heat, increases energy storage loop in the refrigeration loop originally, reduces the energy consumption of compressor when guaranteeing the same refrigeration volume to reduce the air conditioner energy consumption, the power consumption peak period of staggering simultaneously reduces the burden of circuit, and phase change energy storage module is small simultaneously, and is with low costs, is suitable for and the family use.

Description

Distributed energy storage air conditioner based on phase change material

Technical Field

The application relates to the technical field of air conditioners, in particular to a distributed energy storage air conditioner based on a phase change material.

Background

In the processes of cooling and heating, the air conditioner plays an important role, but the air conditioner also has high energy consumption, the power consumption of the air conditioner mainly comes from an air conditioner external unit, namely a compressor, the power of the compressor is usually rapidly increased in the period when the air conditioner starts to cool, and the power of the compressor is slowly reduced until the power of the compressor is stable after the air conditioner starts to cool for a period of time.

At present, the upgrading of the air conditioning technology is limited to the upgrading of parts, the power of a compressor is far larger than that of the compressor in the later heat preservation stage when the air conditioner is just started, the early-stage energy consumption of the air conditioner is larger, and in order to reduce the energy consumption, manufacturers start to use a variable frequency motor, so that although the energy consumption is reduced, a lot of cost is increased. Therefore, in order to solve the problems that the existing air conditioner has higher energy consumption without a frequency conversion technology and has higher cost with the frequency conversion technology, the technical personnel in the field provide the distributed energy storage air conditioner based on the phase change material.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems raised in the background art, the present application provides a distributed energy storage air conditioner based on a phase change material.

The application provides a distributed energy storage air conditioner based on phase change material, including condenser, evaporimeter and surface cooler, establish the circulation through the pipeline between condenser and the evaporimeter, establish the circulation through the pipeline between evaporimeter and the surface cooler, it does not communicate respectively to equally divide on two sections circulating line of evaporimeter and surface cooler has first three-way valve and second three-way valve, and is provided with the phase change module that all communicates with both between first three-way valve and the second three-way valve, be provided with the lateral conduit on the pipeline of intercommunication between phase change module and the first three-way valve, and be provided with on the lateral conduit and carry out driven second pump to the refrigerant in the phase change module.

Preferably, the branch pipeline is further provided with a second expansion valve and a one-way valve, and the one-way valve is arranged in a direction from the phase change module to the surface air cooler.

Preferably, a first pump is arranged on a circulating pipeline communicated with the surface cooler, and a first expansion valve and a compressor are arranged on the circulating pipeline communicated with the evaporator and the condenser.

Preferably, the phase change module comprises a phase change material and a spiral copper pipe, the spiral copper pipe is arranged inside the phase change material, and the phase change material is one of sodium sulfate decahydrate or paraffin.

Preferably, the energy storage loop where the phase change module is located is controlled through an esp series chip, and the energy storage and functions of the energy storage device are automatically and remotely controlled according to the electricity price change.

To sum up, the application comprises the following beneficial technical effects:

the characteristic that phase change latent heat of a phase change energy storage material, namely sodium sulfate decahydrate or paraffin is high is utilized, an energy storage loop is added in an original refrigeration loop, the energy consumption of a compressor is reduced while the same refrigeration capacity is ensured, so that the energy consumption of an air conditioner is reduced, meanwhile, the peak period of power utilization is staggered, the burden of a circuit is reduced, and meanwhile, a phase change energy storage module is small in size, low in cost and suitable for being used in families; the energy storage device stores energy in advance, so that the power of the outer machine is reduced when needed, and the noise is reduced; the low-valley price energy storage can be used for reducing the electricity charge.

Drawings

FIG. 1 is a schematic diagram illustrating an operation of a distributed energy storage air conditioner based on a phase change material according to an embodiment of the present application;

fig. 2 is a control schematic diagram of a distributed energy storage air conditioner based on a phase change material in the embodiment of the present application.

Description of reference numerals: 1. a first expansion valve; 2. a compressor; 3. a first pump; 4. a first three-way valve; 5. a second expansion valve; 6. a second pump; 7. a one-way valve; 8. a second three-way valve; 9. a condenser; 10. an evaporator; 11. a phase change module; 12. and (5) a surface cooler.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses distributed energy storage air conditioner based on phase change material. Referring to fig. 1-2, a distributed energy storage air conditioner based on phase change materials comprises a condenser 9, an evaporator 10 and a surface cooler 12, wherein a circulation is established between the condenser 9 and the evaporator 10 through a pipeline, a circulation is established between the evaporator 10 and the surface cooler 12 through a pipeline, two sections of circulation pipelines of the evaporator 10 and the surface cooler 12 are respectively communicated with a first three-way valve 4 and a second three-way valve 8, a phase change module 11 communicated with the first three-way valve 4 and the second three-way valve 8 is arranged between the first three-way valve 4 and the second three-way valve 8, preferably, the upper section and the lower section of the first three-way valve 4 and the upper section and the lower section of the second three-way valve 8 are communicated with an original circulation pipeline, the phase change module 11 is communicated with the right end of the first three-way valve 4 and is communicated with the left end of the second three-way valve 8, and a branch pipeline communicated between the phase change module 11 and the first three-way valve 4 is provided with a branch pipeline, a second pump 6 for driving the refrigerant in the phase change module 11 is arranged on the branch pipeline, a second expansion valve 5 and a one-way valve 7 are also arranged on the branch pipeline, the direction of the one-way valve 7 is from the phase change module 11 to the surface cooler 12, a first pump 3 is arranged on the circulating pipeline communicated with the evaporator 10 and the surface cooler 12, a first expansion valve 1 and a compressor 2 are arranged on the circulating pipeline communicated with the evaporator 10 and the condenser 9, the phase change module 11 comprises a phase change material and a spiral copper pipe, the spiral copper pipe is arranged in the phase change material, the phase change material adopts one of sodium sulfate decahydrate or paraffin, the preferred sodium sulfate decahydrate or paraffin has stronger phase change latent heat at room temperature, the heat conductivity is high, the circulation is high and pollution-free, the energy storage loop where the phase change module 11 is located is controlled by esp series chips, and the energy storage and the function of the energy storage device are automatically and remotely controlled according to the electricity price change, and (3) drawing an image by using Matlab, calculating daily required energy storage by mathematical modeling, and calculating the required energy storage based on relevant parameters of the energy storage material and the requirement of a user.

The implementation principle of the distributed energy storage air conditioner based on the phase change material in the embodiment of the application is as follows: when the air conditioner normally operates, the compressor 2 compresses a gaseous refrigerant into high-temperature gas, the high-temperature gas is cooled by the condenser 9 and then condensed into liquid, the liquid is gasified by the first expansion valve 1 to become a gaseous refrigerant which is cooled to the utmost extent, and the gaseous refrigerant is cooled by the evaporator 10; when rapid refrigeration is needed, the lower end and the right end of the first three-way valve 4 are opened, the left end and the lower end of the second three-way valve 8 are opened, the second pump 6 works to enable liquid refrigerants to pass through the second expansion valve 5, enter the surface air cooler 12 under the action of the one-way valve 7 to work and refrigerate, and flow into the phase change module 11 again to wait for cold accumulation of the next time.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. Distributed energy storage air conditioner based on phase change material, including condenser (9), evaporimeter (10) and surface cooler (12), establish the circulation through the pipeline between condenser (9) and evaporimeter (10), establish the circulation through the pipeline between evaporimeter (10) and surface cooler (12), its characterized in that: two sections circulating line of evaporimeter (10) and surface cooler (12) are equallyd divide on and are do not communicate and have first three-way valve (4) and second three-way valve (8), and be provided with between first three-way valve (4) and second three-way valve (8) with both phase change module (11) that all communicate, be provided with the lateral conduit on the pipeline of intercommunication between phase change module (11) and first three-way valve (4), and be provided with on the lateral conduit and carry out driven second pump (6) to refrigerant in phase change module (11).

2. The phase change material based distributed energy storage air conditioner of claim 1, wherein: still be provided with second expansion valve (5) and check valve (7) on the lateral conduit, the direction of check valve (7) is by phase transition module (11) towards surface cooler (12) setting.

3. The phase change material based distributed energy storage air conditioner of claim 1, wherein: a first pump (3) is arranged on a circulating pipeline communicated with the evaporator (10) and the surface air cooler (12), and a first expansion valve (1) and a compressor (2) are arranged on the circulating pipeline communicated with the evaporator (10) and the condenser (9).

4. The phase change material based distributed energy storage air conditioner of claim 1, wherein: the phase change module (11) comprises a phase change material and a spiral copper pipe, wherein the spiral copper pipe is arranged inside the phase change material, and the phase change material adopts one of sodium sulfate decahydrate or paraffin.

5. The phase change material based distributed energy storage air conditioner of claim 1, wherein: the energy storage loop where the phase change module (11) is located is controlled through the esp series chip, and the energy storage and functions of the energy storage device are automatically and remotely controlled according to the electricity price change.