Energy storage equipment and air conditioning unit

Abstract

The utility model discloses energy storage equipment and an air conditioning unit, and the energy storage equipment comprises a box body which is internally provided with an energy storage material; and the heat exchange pipe is arranged in the box body, and the heat exchange pipe comprises a plurality of pipeline sections which are arranged in parallel. According to the energy storage equipment and the air conditioning unit, the problem that the ice storage effect is poor due to the fact that the temperature difference between the head section and the tail section of the heat exchange tube of the energy storage equipment is large in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration, and particularly to an energy storage device and an air-conditioning unit. Background Art

[0002] With the popularization of air conditioners, the power consumption of air-conditioning units increases accordingly, which also brings about the imbalance between power supply and demand.

[0003] The use of air conditioners is divided into peak and off-peak periods according to local temperature and user needs. By "shifting the peak and filling the valley", such as ice storage, the power can be effectively smoothed, achieving the effects of energy conservation, emission reduction, and improving energy utilization efficiency.

[0004] In the prior art, an air-conditioning unit is configured with an energy storage device (such as an ice storage tank for ice storage). As shown in Figure 1 , a heat exchange tube 101 in the air-conditioning unit is led into the energy storage device, and ice storage is carried out through the heat exchange tube 101. The heat exchange tube of the energy storage device in the prior art is an integral pipeline, generally composed of a serpentine pipeline with a single length of more than 10 m. The refrigerant flow path of this pipeline is long, resulting in a large temperature difference between the head and tail sections of the heat exchange tube, and incomplete ice storage in the latter half of the heat exchange tube, as shown in the ice formation range A in Figure 2 .

[0005] In summary, in the prior art, the large temperature difference between the head and tail sections of the heat exchange tube of the energy storage device leads to poor ice storage effect. Summary of the Utility Model

[0006] An energy storage device and an air-conditioning unit are provided in an embodiment of the utility model to solve the problem that the large temperature difference between the head and tail sections of the heat exchange tube of the energy storage device in the prior art leads to poor ice storage effect.

[0007] To achieve the above object, the utility model provides an energy storage device, including:

[0008] A box body, in which an energy storage material is provided;

[0009] A heat exchange tube, which is arranged inside the box body and includes a plurality of pipe sections arranged in parallel.

[0010] Further, the plurality of pipe sections arranged in parallel form a pipeline group, the number of the pipeline groups is multiple, and the multiple pipeline groups are arranged at intervals.

[0011] Further, the multiple pipeline groups are arranged at intervals along a first direction;

[0012] The plurality of pipe sections in one pipeline group are arranged at intervals along a second direction.

[0013] Further, the pipe section is a serpentine pipeline.

[0014] Furthermore, an upper cross beam located at the top and a lower cross beam located at the bottom are provided inside the box body;

[0015] The pipe section at least includes two U-shaped elbows. One U-shaped elbow of the pipe section is fixedly connected to the upper cross beam, and one U-shaped elbow of the pipe section is fixedly connected to the lower cross beam.

[0016] Furthermore, the number of the upper cross beams is multiple, the number of the lower cross beams is multiple, and the upper cross beams and the lower cross beams are arranged in one-to-one correspondence; each upper cross beam and each lower cross beam are fixedly connected with multiple pipe sections.

[0017] Furthermore, the box body includes a frame structure and a panel. The panel is connected to the frame structure, the panel encloses the internal space of the box body, and the upper cross beam and the lower cross beam are fixedly connected to the frame structure.

[0018] Furthermore, the ports of the pipe sections are all located at the top of the box body, and multiple pipe sections are connected in parallel through connecting pipes.

[0019] According to another aspect of the present invention, an air conditioning unit is provided, which includes the energy storage device described above.

[0020] The heat exchange pipes in the energy storage device are arranged as multiple parallel pipe sections. Compared with the integral pipeline in the prior art, the length of a single pipe is reduced, the refrigerant flow stroke is shortened, and under the same ambient temperature, the temperature difference between the head and tail sections of each pipe section is very small, making the temperature distribution of the overall heat exchange pipe more uniform. All pipe sections are evenly distributed inside the box body for uniform heat exchange and cold storage, and the ice storage effect is more prominent. Description of the Drawings

[0021] Figure 1 is a schematic diagram of the internal structure of the energy storage device in the prior art;

[0022] Figure 2 is a schematic diagram of the ice storage range of the energy storage device in the prior art;

[0023] Figure 3 is a schematic diagram of the internal structure of the energy storage device according to the embodiment of the present invention;

[0024] Figure 4 is a schematic diagram of the structure of the energy storage device according to the embodiment of the present invention;

[0025] Figure 5 is a schematic diagram of the ice storage range of the energy storage device according to the embodiment of the present invention;

[0026] Figure 6It is a schematic layout diagram of the heat exchange tubes of the energy storage device according to an embodiment of the present utility model;

[0027] Figure 7 It is a schematic structural diagram of the panel of the energy storage device according to an embodiment of the present utility model;

[0028] Figure 8 It is a schematic structural diagram of the box body of the energy storage device according to an embodiment of the present utility model. Detailed implementation manners

[0029] The present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments, but it is not limited to the present utility model.

[0030] See Figures 3 to 8 As shown, according to an embodiment of the present utility model, an energy storage device is provided. The energy storage device includes a box body 10 and heat exchange tubes 20. The box body 10 has energy storage materials inside; the heat exchange tubes 20 are arranged inside the box body 10, and the heat exchange tubes 20 include a plurality of pipe sections 21 arranged in parallel. Figure 3 The partial pipelines within the dashed box in are the above-mentioned pipe sections 21.

[0031] In the energy storage device of this embodiment, the heat exchange tubes are set as a plurality of parallel pipe sections. Compared with the integral pipeline in the prior art, the single-pipe length of the plurality of parallel pipe sections is reduced, and the refrigerant flow stroke is shortened. Under the same ambient temperature, the temperature difference between the head and tail sections of each pipe section is very small, making the temperature distribution of the entire heat exchange tube more uniform. All the pipe sections are evenly distributed inside the box body for uniform heat exchange and cold storage, and the ice storage effect is more prominent.

[0032] See Figure 5 The ice storage range B in, compared with Figure 2 It can be clearly seen that the ice storage range of this embodiment is larger and more uniform. The energy storage device of this embodiment not only reduces the temperature difference between the head and tail sections of the heat exchange tubes, speeds up the heat exchange tubes to improve the heat exchange efficiency, stores ice evenly, but also can achieve the effect of complete ice storage, ensuring the maximization of the energy storage effect of the energy accumulator.

[0033] Preferably, in combination with Figure 4 and Figure 5 As shown, the plurality of pipe sections 21 arranged in parallel form a pipeline group 22, and the number of the pipeline groups 22 is multiple, and the multiple pipeline groups 22 are arranged at intervals. The multiple pipeline groups are evenly distributed in the box body, so that the heat exchange effect can be more uniform and the ice storage effect is better.

[0034] Preferably, the multiple pipeline groups 22 are arranged at intervals along the first direction; the multiple pipe sections 21 within one pipeline group 22 are arranged at intervals along the second direction. Figure 6 The dashed box in is one pipeline group 22, and the multiple pipeline groups 22 are alongFigure 6 arranged at intervals in the up and down direction, and multiple pipe sections 21 in each group of pipe sections are arranged at intervals in Figure 6 the left and right directions. The above arrangement is more reasonable and uniform, with better ice storage effect and higher space utilization rate.

[0035] In this embodiment, the pipe section 21 is a serpentine pipe. The heat exchange pipes are arranged in multiple groups of serpentine pipes, with a relatively large height, accounting for about 90% of the overall height of the water tank. The heat exchange path is formed by bending seamless steel pipes, the angle between the pipes is designed to be 120°, and the pipe spacing is designed to be 60 - 70 mm.

[0036] Further preferably, an upper cross beam 31 is arranged at the top and a lower cross beam 32 is arranged at the bottom in the box body 10;

[0037] The pipe section 21 at least includes two U-shaped bent pipes. One U-shaped bent pipe of the pipe section 21 is fixedly connected to the upper cross beam 31, and one U-shaped bent pipe of the pipe section 21 is fixedly connected to the lower cross beam 32.

[0038] See Figure 4 , the pipe section is fixed to the upper and lower cross beams through two U-shaped bent pipes at the upper and lower parts, which limits the shaking of the heat exchange pipes and makes the heat exchange pipes more firm and stable. The two U-shaped bent pipes can be fixed to the upper and lower cross beams by using pipe clamps, which is convenient for connection and disassembly.

[0039] In order to further optimize the structural space, in this embodiment, the number of the upper cross beams 31 is multiple, the number of the lower cross beams 32 is multiple, and the upper cross beams 31 and the lower cross beams 32 are arranged in one-to-one correspondence; each upper cross beam 31 and each lower cross beam 32 fixedly connect multiple pipe sections 21. In this way, all pipe sections can be fixed by a smaller number of upper and lower cross beams, saving materials and structural space.

[0040] Combined with Figure 8 shown, the box body 10 includes a frame structure 11 and a panel 12. The panel 12 is connected to the frame structure 11. The panel 12 encloses the internal space of the box body 10, and the upper cross beam 31 and the lower cross beam 32 are fixedly connected to the frame structure 11.

[0041] The frame structure 11 provides support for the box body (water tank) and strengthens the strength of the water tank. The frame structure 11 has installation ribs to position the relative positions of the frame sections and realize the mutual fixation of the frame sections.

[0042] By disassembling and assembling the connection between the frame section and the installation rib, the heat exchange pipes can be separated from the water tank, which is beneficial to replacing the heat exchange pipes according to needs. The size can be changed according to needs, and it can cooperate with the installation of the heat exchange pipes, facilitating the disassembly and assembly of the heat exchange pipes and realizing the matching with various types of air-conditioning units.

[0043] To ensure the maximization of stored cooling capacity, the method of complete freezing is adopted for cold storage. The size of the box (water tank) determines the maximum total cold storage capacity. The panel of the box (water tank) is a standard sheet metal part, and the water tank can be assembled according to the use environment and requirements of the unit to match the maximum cold storage capacity required, and effectively reduce the deformation of the water tank caused by volume expansion due to icing.

[0044] Combined with Figure 3 and Figure 4 , the ports of the pipe sections 21 are all located at the top of the box 10, and multiple pipe sections 21 are connected in parallel through the connecting pipe 23. The connecting pipe 23 located at the top of the box 10 can facilitate the adjustment of the connection relationship of the heat exchange pipes, and facilitate the replacement and layout installation of the pipe sections. The inlets and outlets of the heat exchange pipes are arranged in parallel and are respectively connected to the corresponding heat exchange channels. The heat exchange channels are connected to the total inlets and outlets, and the total inlets and outlets are then connected to the air conditioner outdoor unit to connect the refrigerant flow channels.

[0045] During the low electricity consumption period, the refrigerant enters the energy storage device from the refrigerant inlet for cold storage. When storing cold, the liquid water inside the water tank freezes into ice to store the cold quantity. During the high electricity consumption period, the cold is released, and the cold quantity of the ice melting is used for refrigeration. The heat exchange pipes of the present utility model are split into multiple parallel pipe sections, which can effectively reduce the temperature difference between the head and the tail of the heat exchange pipes, improve the ice storage efficiency, and ensure complete ice storage. The length of the pipe section is generally 5.5m. Taking the heat exchange pipes required for a water tank with a standard size of 1m×1m×1.5m as an example, the height of the heat exchange pipes is designed to be 1320mm, and the pipe spacing is designed to be 65mm, and complete freezing can be completed within 5-6h during the low electricity consumption period.

[0046] The present utility model also provides an embodiment of an air conditioner unit, and the air conditioner unit includes the above-mentioned energy storage device.

[0047] It should be noted that the terms used here are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used here, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0048] It should be noted that the terms "first", "second", etc. in the description and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described here can be implemented in an order other than those illustrated or described here.

[0049] Of course, the above is the preferred embodiment of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the basic principles of the present utility model, several improvements and modifications can be made, and these improvements and modifications are also regarded as the protection scope of the present utility model.

Claims

1. An energy storage device, characterized in that: include: A box (10), wherein the box (10) has energy storage material inside; A heat exchange tube (20), wherein the heat exchange tube (20) is arranged inside the box (10), and the heat exchange tube (20) comprises a plurality of pipeline sections (21) arranged in parallel.

2. The energy storage device according to claim 1, characterized in that The plurality of pipeline sections (21) arranged in parallel form a pipeline group (22), the number of the pipeline groups (22) is plural, and the plurality of pipeline groups (22) are arranged at intervals.

3. The energy storage device according to claim 2, characterized in that: The plurality of pipeline groups (22) are arranged at intervals along a first direction; The plurality of pipeline sections (21) within one pipeline group (22) are arranged at intervals along the second direction.

4. The energy storage device according to claim 1, characterized in that: The pipeline section (21) is a serpentine pipeline.

5. The energy storage device according to claim 1 or 4, characterized in that: An upper crossbeam (31) located at the top and a lower crossbeam (32) located at the bottom are arranged in the box body (10); The pipeline section (21) comprises at least two U-shaped bends, one of the U-shaped bends of the pipeline section (21) is fixedly connected to the upper crossbeam (31), and one of the U-shaped bends of the pipeline section (21) is fixedly connected to the lower crossbeam (32).

6. The energy storage device according to claim 5, characterized in that: There are a plurality of upper cross beams (31), a plurality of lower cross beams (32), and the upper cross beams (31) and the lower cross beams (32) are arranged in a one-to-one correspondence; Each of the upper cross beams (31) and each of the lower cross beams (32) are fixedly connected to a plurality of pipeline sections (21).

7. The energy storage device according to claim 5, characterized in that: The box body (10) comprises a frame structure (11) and a panel (12); the panel (12) is connected to the frame structure (11); the panel (12) encloses an internal space of the box body (10); and the upper crossbeam (31) and the lower crossbeam (32) are fixedly connected to the frame structure (11).

8. The energy storage device according to claim 1, characterized in that: The ports of the pipeline sections (21) are all located at the top of the box (10), and a plurality of pipeline sections (21) are connected in parallel via connecting pipes (23).

9. An air conditioning unit, characterized in that: An energy storage device comprising any one of claims 1 to 8.

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