CN219414957U

CN219414957U - Energy storage unit circulation air duct structure

Info

Publication number: CN219414957U
Application number: CN202320487723.3U
Authority: CN
Inventors: 刘琪; 李均
Original assignee: Sichuan Carbon Times Energy Development Co ltd
Current assignee: Sichuan Carbon Times Energy Development Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-07-25
Anticipated expiration: 2033-03-14

Abstract

The utility model discloses a circulating air duct structure of an energy storage unit, which comprises a shell, wherein a heat storage module chamber is arranged in an inner cavity of the shell, and an electric heating chamber is arranged in the inner cavity of the shell below the heat storage module chamber; the electric heating chamber is provided with a hot air outlet and an air return opening in a separated mode, the hot air outlet is located in the middle of the electric heating chamber, the hot air outlet is vertically upwards oriented to the heat storage module chamber, and the air return opening is formed in the periphery of the hot air outlet. The beneficial effects of the utility model are as follows: the air heat exchange efficiency in the box body is high, and the heating rate of the heat storage module is high.

Description

Energy storage unit circulation air duct structure

Technical Field

The utility model relates to the technical field of physical energy storage, in particular to a physical heat storage air conditioner, and particularly relates to a circulating air duct structure of an energy storage unit.

Background

The common indoor heating equipment is electric heating or hydrothermal heating, wherein the hydrothermal heating is more used in northern urban areas, and the central heating is needed to be adopted for economy. For areas without central heating facilities, more electric heating equipment is used indoors, such as air conditioners, electric heating heaters and the like. However, the electric heating equipment needs to be continuously electrified, and high load is often caused on a power grid in the heating peak period, so that the power consumption is tense. On the other hand, in places where stable power supply cannot be realized, such as uninterrupted power supply areas and outdoor cold areas, the electric heating equipment cannot work normally and cannot meet the use requirements. Although a large-capacity mobile power supply product provides a choice for outdoor power supply in recent years, the use requirement of high-power electric heating equipment is often difficult to meet, and the electric energy is firstly stored in a charging mode and then output and converted into heat energy, so that the energy conversion efficiency is low. Physical energy storage equipment based on phase change energy storage technology is developed in the field of civil heating. Phase change heat storage technology involves the storage of heat and release in a use scenario. The heat storage core of some energy storage devices is heated up outside and then installed into the energy storage devices, but the use is inconvenient. The electric heating device is arranged in the energy storage equipment to heat the energy storage core, so that the energy storage core is a more easily used mode. The heating air channel structure inside the energy storage equipment is reasonably designed, and the heating efficiency can be improved.

Disclosure of Invention

In view of the above, the utility model provides a circulating air duct structure of an energy storage unit.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the circulating air duct structure of the energy storage unit comprises a shell, and is characterized in that a heat storage module chamber is arranged in an inner cavity of the shell, and an electric heating chamber is arranged in the inner cavity of the shell below the heat storage module chamber;

the electric heating chamber is provided with a hot air outlet and an air return opening in a separated mode, the hot air outlet is located in the middle of the electric heating chamber, the hot air outlet is vertically upwards oriented to the heat storage module chamber, and the air return opening is formed in the periphery of the hot air outlet.

Preferably, the air return port is also vertically upward, and an internal circulating fan is arranged on a flow passage between the air return port and the hot air outlet.

Preferably, two sides of the hot air outlet are respectively provided with one return air inlet, and the two return air inlets are respectively close to two side walls of the shell.

Preferably, the electric heating chamber comprises a cuboid heating cavity, a hot air pipe is connected to the top wall of the heating cavity, the hot air pipe is vertically arranged and is communicated with the heat storage module chamber, and an opening at the upper part of the hot air pipe forms the hot air outlet;

and two side walls of the heating cavity are respectively connected with an air return pipe, one end of the air return pipe is connected with the side wall of the heat storage module chamber, the air return pipe extends outwards and bends upwards, the upper end of the air return pipe extends beyond the hot gas outlet position, and an opening at the upper end of the air return pipe forms the air return opening.

Preferably, the end face of the upper end opening of the return air pipe is an inclined plane, and the inner pipe wall of the upper end of the return air pipe is higher than the outer pipe wall.

Preferably, the electric heating chamber is provided with an inner deflector near two hot air pipes respectively, one end of the inner deflector is near the lower part of the lower end of the return air pipe, and the other end extends upwards while extending towards the center of the electric heating chamber so as to guide the airflow to flow to the hot air outlet.

Preferably, a group of hot air pipes are arranged at the top of the electric heating chamber, the hot air pipes are arranged in parallel, and electric heating devices are respectively arranged in each hot air pipe.

Preferably, the internal circulation fan is disposed in the return air pipe and is located at a curved portion of the return air pipe.

The beneficial effects of the utility model are as follows: turbulence is reduced, the heat exchange efficiency of air in the box body is highest, and the heating rate of the heat storage module is high; the structure is simple, and the air fluid mechanical property is met.

Drawings

FIG. 1 is a front view of an energy storage unit;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is an enlarged view of the lower portion of FIG. 2 showing the mounting structure of the electric heating chamber within the housing;

FIG. 4 is a schematic diagram of the structure of an electric heating module;

FIG. 5 is a right side view of FIG. 1;

fig. 6 is a sectional view of B-B in fig. 5.

Detailed Description

The utility model is further described below with reference to examples and figures.

As shown in fig. 1 to 6, a circulating air duct structure of an energy storage unit comprises a housing 100, wherein a heat storage module chamber 120 is arranged in an inner cavity of the housing 100, and an electric heating chamber 110 is arranged in the inner cavity of the housing 100 below the heat storage module chamber 120. The electric heating chamber 110 is separately provided with a hot air outlet 111a and a return air inlet 112a, wherein the hot air outlet 111a is located in the middle of the electric heating chamber 110, the hot air outlet 111a is vertically oriented towards the heat storage module chamber 120 above, and the return air inlet 112a is provided around the hot air outlet 111a.

The return air inlet 112a is also vertically upward, and an internal circulation fan 113 is arranged on a flow passage between the return air inlet 112a and the hot air outlet 111a. In this way, the hot air flowing upward from the hot air outlet 111a is substantially parallel to the cool air flow path having a relatively low temperature flowing back from the return air inlet 112a, and turbulence is reduced, thereby improving the circulation efficiency between the heat storage module chamber 120 and the electric heating chamber 110 and improving the heating effect.

As shown in fig. 3 and 4, two sides of the hot air outlet 111a are respectively provided with one return air inlet 112a, and two return air inlets 112a are respectively close to two side walls of the casing 100.

The electric heating chamber 110 comprises a rectangular heating cavity, a hot air pipe 111 is connected to the top wall of the heating cavity, the hot air pipe 111 is vertically arranged and communicates the heating cavity with the heat storage module chamber 120, and an upper opening of the hot air pipe 111 forms the hot air outlet 111a.

And two side walls of the heating cavity are respectively connected with an air return pipe 112, one end of the air return pipe 112 is connected with the side wall of the heat storage module chamber 120, the air return pipe 112 extends outwards and bends upwards, the upper end of the air return pipe 112 extends beyond the position of the hot air outlet 111a, and the upper end opening of the air return pipe 112 forms the air return inlet 112a. In this design, a diversion area is formed between the return air pipes 112 at both sides so that the hot air flows upward from the hot air outlet 111a and is separated from the air flow of the return air pipes 112. Fully mobilizing the airflow circulation within the enclosure 100.

As shown in fig. 3, the internal circulation fan 113 is disposed in the return air duct 112 and is located at a curved portion of the return air duct 112.

As shown in fig. 3 and 4, the end surface of the upper opening of the return air pipe 112 is inclined. The side of the return air pipe 112 close to the hot air pipe 111 is the inner side, and the inner pipe wall at the upper end of the return air pipe 112 is higher than the outer pipe wall. This design further reduces flow interference between the hot air flow of the hot air duct 111 and the cold air flow of the return air duct 112.

As shown in fig. 3, to reduce the air flow resistance in the electric heating chamber 110, an inner baffle 114 is disposed in the electric heating chamber 110 near the two hot air pipes 111, and one end of the inner baffle 114 is near the lower end of the return air pipe 112, while the other end extends upward toward the center of the electric heating chamber 110, so as to guide the air flow to the hot air outlet 111a.

In this embodiment, as shown in fig. 3 and 4, a set of hot air pipes 111 are disposed at the top of the electric heating chamber 110, the hot air pipes 111 are arranged in parallel, and each of the hot air pipes 111 is provided with an electric heating device. The electric heating devices are turned on in a certain number and positions according to the requirement.

An energy storage core (not shown) is provided in the heat storage module chamber 120 of the energy storage unit.

When the energy storage unit with the circulating air duct structure is used for heat storage, the electric heating device works to generate heat, meanwhile, the internal circulating fan 113 works to enable gas in the shell 100 to enter the heating cavity from the return air inlet 112a, then upwards flows through the hot air pipe 111 to be heated by the electric heating device to raise the temperature, hot air immediately upwards flows out of the hot air outlet 111a and heats the energy storage core above, and after the hot air flows through the energy storage core to reach the upper part of the heat storage module chamber 120, the hot air flows back to the return air inlet 112a from the periphery of the heat storage module chamber 120, and then the heating circulation is carried out.

As shown in fig. 1, 2, 5 and 6, the outer casing 100 is further provided with an outer circulation air inlet 101 and an outer circulation air outlet 102, the outer circulation air outlet 102 is located at the upper part of the outer casing 100, and the outer circulation air inlet 101 is located at the lower part of the outer casing 100; the heat storage module chamber 120 is disposed in the inner cavity of the housing 100 between the external circulation air inlet 101 and the external circulation air outlet 102.

A hot air outlet 121 is formed in the top wall of the heat storage module chamber 120, an external circulation exhaust duct 131 is arranged between the hot air outlet 121 and the external circulation air outlet 102, and an external circulation external exhaust fan 132 is arranged in the external circulation exhaust duct 131. The heat storage module chamber 120 is provided with a cold air inlet 122 corresponding to the external circulation air inlet 101, and an external circulation air inlet duct 140 is arranged between the cold air inlet 122 and the corresponding external circulation air inlet 101.

After the heat storage is completed, the electric heating device stops working. In the period of time when indoor heating is required, the external circulation external exhaust fan 132 is started, the hot air door and the cold air door are opened, indoor air enters through the external circulation air inlet 101, heat of the heat storage core is absorbed when the indoor air flows through the heat exchange flow passage so as to be heated, and the heated air is discharged into the room through the external circulation hot air outlet 102, so that the indoor heating is realized through circulation flow.

Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides an energy storage unit circulation wind channel structure, includes shell (100), its characterized in that: a heat storage module chamber (120) is arranged in the inner cavity of the shell (100), and an electric heating chamber (110) is arranged in the inner cavity of the shell (100) below the heat storage module chamber (120);

the electric heating chamber (110) is provided with a hot air outlet (111 a) and an air return opening (112 a) in a separated mode, the hot air outlet (111 a) is located in the middle of the electric heating chamber (110), the hot air outlet (111 a) faces vertically upwards to form the heat storage module chamber (120), and the air return opening (112 a) is formed in the periphery of the hot air outlet (111 a).

2. The energy storage unit circulation duct structure of claim 1, wherein: the air return port (112 a) is also vertically upwards, and an internal circulating fan (113) is arranged on a flow passage between the air return port (112 a) and the hot air outlet (111 a).

3. The energy storage unit circulation duct structure of claim 1, wherein: two sides of the hot air outlet (111 a) are respectively provided with one return air inlet (112 a), and the two return air inlets (112 a) are respectively close to two side walls of the shell (100).

4. The energy storage unit circulation duct structure of claim 2, wherein: the electric heating chamber (110) comprises a cuboid heating cavity, a hot air pipe (111) is connected to the top wall of the heating cavity, the hot air pipe (111) is vertically arranged and is communicated with the heat storage module chamber (120), and an upper opening of the hot air pipe (111) forms the hot air outlet (111 a);

and two side walls of the heating cavity are respectively connected with an air return pipe (112), one end of the air return pipe (112) is connected with the side wall of the heat storage module chamber (120), the air return pipe (112) extends outwards and bends upwards, the upper end of the air return pipe (112) extends beyond the position of the hot air outlet (111 a), and the upper end opening of the air return pipe (112) forms the air return opening (112 a).

5. The energy storage unit circulation duct structure of claim 4, wherein: the end face of the upper end opening of the return air pipe (112) is an inclined plane, and the inner pipe wall of the upper end of the return air pipe (112) is higher than the outer pipe wall.

6. The energy storage unit circulation duct structure of claim 4, wherein: an inner guide plate (114) is respectively arranged in the electric heating chamber (110) and close to the two hot air pipes (111), one end of the inner guide plate (114) is close to the lower part of the lower end of the return air pipe (112), and the other end extends upwards while extending towards the center of the electric heating chamber (110) so as to guide airflow to the hot air outlet (111 a).

7. The energy storage unit circulation duct structure of claim 4, wherein: the electric heating chamber (110) is characterized in that a group of hot air pipes (111) are arranged at the top of the electric heating chamber (110), the hot air pipes (111) are arranged in parallel, and electric heating devices are respectively arranged in each hot air pipe (111).

8. The energy storage unit circulation duct structure of claim 4, wherein: the internal circulation fan (113) is arranged in the return air pipe (112) and is positioned at the bending part of the return air pipe (112).