Cold storage tank with spherical phase change material

Abstract

The utility model discloses a cold storage tank with spherical phase change materials, which comprises a cold storage tank body, a heat exchange assembly is filled in the cold storage tank body, the heat exchange assembly comprises a plurality of PCM spherical ice plates, a material injection port is integrally formed in the middle of the top end of each PCM spherical ice plate, a sealing cover is arranged in the top end of each material injection port, and the sealing covers are connected with the PCM spherical ice plates. Three transverse annular reinforcing ribs and three longitudinal semi-annular reinforcing ribs are respectively arranged on the outer side of the PCM spherical ice plate; the size of the PCM spherical ice plate is reasonably designed, 8-degree PCM materials are filled into the PCM spherical ice plate, the overall density is not larger than the density of water, the sufficient filling amount of the PCM materials is guaranteed, the PCM materials can be conveniently placed and flow in the cold storage tank, it is guaranteed that each sphere can fully participate in the heat exchange process, and the overall cold storage and discharge efficiency is improved; and meanwhile, the PCM spherical ice plate is matched with the transverse annular reinforcing ribs and the longitudinal semi-annular reinforcing ribs on the PCM spherical ice plate, so that the overall strength is improved, the PCM spherical ice plate can be in full contact with water, and the phase change rate is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of phase change material application technology, specifically relating to a cold storage tank with spherical phase change material. Background Technology

[0002] With the widespread use of central air conditioning systems in various buildings, the requirements for energy conservation and efficient operation are increasing. Traditional phase change materials (PCMs) have problems such as complex installation, limited heat exchange efficiency with water, and high pressure on the container when applied to central air conditioning cold storage devices. This not only increases the difficulty and cost of construction, but also limits the full utilization of the performance of PCMs, failing to meet the needs of modern central air conditioning systems for efficient cold storage and release. There is an urgent need for an innovative PCM product and application method to solve these problems. Therefore, a spherical product containing PCMs is designed to overcome the above-mentioned technical defects. Utility Model Content

[0003] (1) Technical problems to be solved

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a spherical product containing phase change material to solve the above-mentioned technical problems.

[0005] (2) Technical solution

[0006] To solve the above-mentioned technical problems, this utility model provides a cold storage tank with spherical phase change material, including a cold storage tank body. The interior of the cold storage tank body is filled with a heat exchange component, which includes multiple PCM spherical ice plates. The top center of each PCM spherical ice plate has an integrally formed injection port. A sealing cap is installed inside the top of the injection port. The outer side of each PCM spherical ice plate is provided with three transverse annular reinforcing ribs and longitudinal semi-annular reinforcing ribs. The interior of each PCM spherical ice plate is filled with PCM material through the injection port.

[0007] Furthermore, the top center of the cold storage tank body is integrally formed with a feeding port, the top of the feeding port is sealed with a top cover, the upper left side of the cold storage tank body is fixedly connected to a water inlet pipe, and the bottom side of the cold storage tank body is fixedly connected to a water outlet pipe.

[0008] Furthermore, valves are installed inside both the inlet pipe and the outlet pipe.

[0009] Furthermore, the diameter of the PCM spherical ice plate is 3-5 cm, and the density of the PCM spherical ice plate and the density of the PCM material filling it are both no greater than the density of water.

[0010] Furthermore, the transverse annular reinforcing ribs and the longitudinal semi-annular reinforcing ribs are arranged in a crisscross pattern, and the projections of the transverse annular reinforcing ribs and the longitudinal semi-annular reinforcing ribs are perpendicular to each other. The three transverse annular reinforcing ribs are distributed at equal intervals along the arc surface of the PCM spherical ice plate.

[0011] Furthermore, the sealing cap is fused to the inside of the injection port using an ultrasonic vibration device, and the PCM material is an 8-degree phase change material.

[0012] Furthermore, the PCM material accounts for 95-98% of the volume of the PCM spherical ice plate, and the PCM spherical ice plate accounts for 65-75% of the volume of the cold storage tank body.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention utilizes a rationally designed PCM spherical ice plate, filled with 8-degree PCM material, to ensure an overall density no greater than that of water. This guarantees sufficient PCM material filling while facilitating placement and flow within the cold storage tank, ensuring each sphere fully participates in the heat exchange process and improving overall cold storage and release efficiency. Furthermore, the PCM spherical ice plate, with its transverse annular and longitudinal semi-annular reinforcing ribs, not only enhances overall strength but also allows for more thorough contact with water, effectively increasing the phase change rate. Installation is also convenient, eliminating the need for manual stacking, significantly shortening the construction cycle and reducing labor costs and construction difficulty. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cold storage tank structure with spherical phase change material in this utility model;

[0017] Figure 2 This is a cross-sectional view of the cold storage tank with spherical phase change material in this utility model.

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the PCM spherical ice plate in this utility model;

[0019] Figure 4 This is a schematic diagram of the main structure of the PCM spherical ice plate explosion in this utility model;

[0020] Figure 5 This is a cross-sectional view of the PCM spherical ice plate in this utility model.

[0021] The markings in the attached diagram are as follows: 1. Cold storage tank body; 101. Feeding port; 102. Water inlet pipe; 103. Water outlet pipe; 2. Heat exchange assembly; 3. PCM spherical ice plate; 301. Injection port; 302. Sealing cover; 303. Transverse annular reinforcing rib; 304. Longitudinal semi-annular reinforcing rib; 4. PCM material. Detailed Implementation

[0022] This specific embodiment is a cold storage tank with spherical phase change material, and its structural schematic diagram is shown below. Figures 1-5 As shown, the device includes a cold storage tank body 1, the interior of which is filled with a heat exchange assembly 2. The heat exchange assembly 2 includes multiple PCM spherical ice plates 3. The top center of each PCM spherical ice plate 3 is integrally formed with an injection port 301. A sealing cap 302 is installed inside the top of the injection port 301. The outer side of each PCM spherical ice plate 3 is provided with three transverse annular reinforcing ribs 303 and longitudinal semi-annular reinforcing ribs 304. The interior of the PCM spherical ice plate 3 is filled with PCM material 4 through the injection port 301.

[0023] Specifically, the spherical shell of the PCM spherical ice plate 3 is made of high-strength, low-temperature resistant, and non-toxic materials, ensuring stable phase change within the material while significantly reducing leakage and volatilization of the PCM material 4. Simultaneously, the spherical design of the PCM spherical ice plate 3 provides a large specific surface area, and its surface is reinforced with transverse annular ribs 303 and longitudinal semi-annular ribs 304, which not only enhances the strength of the PCM spherical ice plate 3 but also increases its contact area with water. Compared to traditional block or granular phase change materials, it allows for more thorough contact with water. After the return water from the central air conditioning system enters the cold storage tank body 1 through the inlet pipe 102, the water flow, like flowing through a crack in a stone, efficiently exchanges heat with the surface of the PCM spherical ice plate 3, rapidly absorbing or releasing heat. This effectively increases the phase change rate, allowing the outlet water temperature to reach the required temperature range for the central air conditioning system more quickly. This significantly improves the cooling efficiency and overall cooling rate of the entire cold storage system, substantially enhancing the energy-saving effect and operational stability of the central air conditioning system.

[0024] In addition, the top center of the cold storage tank body 1 is integrally formed with a feeding port 101, and the top of the feeding port 101 is sealed with a top cover. The upper left side of the cold storage tank body 1 is fixedly connected to a water inlet pipe 102, and the bottom side of the cold storage tank body 1 is fixedly connected to a water outlet pipe 103. The PCM spherical ice plates 3 can be added as needed through the feeding port 101 without the need for manual stacking. This simple and quick installation method greatly shortens the construction cycle, reduces labor costs and construction difficulty, and provides convenient conditions for the rapid deployment and application of central air conditioning cold storage devices. It is especially suitable for large-scale central air conditioning system installation and renovation projects.

[0025] In addition, valves are installed inside both the inlet pipe 102 and the outlet pipe 103.

[0026] Furthermore, the diameter of the PCM spherical ice plate 3 is 3-5 cm, and the density of both the PCM spherical ice plate 3 and the density of the PCM material 4 filling it are no greater than the density of water. The size design of the PCM spherical ice plate 3 ensures sufficient filling of PCM material 4 while facilitating placement and flow within the cold storage tank 1. Since the density of the PCM spherical ice plate 3 after filling with PCM material 4 is no greater than the density of water, multiple PCM spherical ice plates 3 placed in the cold storage tank 1 or cold water pipes can remain suspended in the water. This characteristic greatly reduces the pressure on the container, avoiding excessive pressure and damage to the bottom of the cold storage tank 1 caused by the accumulation of phase change material. It also facilitates the natural dispersion and flow of the PCM spherical ice plates 3 under the action of water flow, ensuring that each PCM spherical ice plate 3 can fully participate in the heat exchange process, thereby improving the overall cold storage and release efficiency.

[0027] Furthermore, the transverse annular reinforcing ribs 303 and the longitudinal semi-annular reinforcing ribs 304 are arranged in a crisscross pattern, and the projections of the transverse annular reinforcing ribs 303 and the longitudinal semi-annular reinforcing ribs 304 are perpendicular to each other. The three transverse annular reinforcing ribs 303 are distributed at equal intervals along the arc surface of the PCM spherical ice plate 3. This design not only improves the strength of the PCM spherical ice plate 3, but also increases its contact area with water, so that water can flow not only between adjacent PCM spherical ice plates 3, but also between the transverse annular reinforcing ribs 303 and the longitudinal semi-annular reinforcing ribs 304, which greatly improves the heat exchange efficiency.

[0028] In addition, the sealing cap 302 is fused to the inside of the injection port 301 by an ultrasonic vibration device. The PCM material 4 is an 8-degree phase change material. The 8-degree phase change material is existing technology and will not be described in detail here. The injection port 301 is located on the top of the PCM spherical ice plate 3, which facilitates the precise filling of the PCM material 4 into it. The sealing cap 302 adopts a special sealing method to ensure that the PCM material 4 will not leak during long-term use, while maintaining the overall sealing and stability of the PCM spherical ice plate 3 and ensuring the efficient progress of the phase change process.

[0029] Furthermore, the filling volume of PCM material 4 accounts for 95-98% of the volume of PCM spherical ice plate 3, and the filling volume of PCM spherical ice plate 3 accounts for 65-75% of the volume of the cold storage tank body 1. The high filling volume of PCM material 4 and the high filling volume of PCM spherical ice plate 3 in the cold storage tank 1 meet the requirements for heat exchange contact between water and PCM spherical ice plate 3, making the heat exchange efficiency between the product and the outside world higher, and enabling faster and more complete heat absorption and release, significantly improving the performance and working efficiency of PCM material 4.

[0030] Working principle: First, after the PCM spherical ice plate 3 is formed, 8-degree phase change material is precisely filled into the interior of the PCM spherical ice plate 3 through the injection port 301. The filling amount is strictly controlled according to the volume of the PCM spherical ice plate 3 and the performance requirements of the PCM material 4 to ensure that the phase change material inside each sphere is evenly distributed and fully filled. After filling is completed, the sealing cap 302 is immediately welded to the interior of the injection port 301 through an ultrasonic vibration device to ensure the reliability and durability of the seal. Only after strict quality inspection can the qualified PCM spherical ice plate 3 enter the application stage.

[0031] When installing the central air conditioning cold storage device, calculate the required number of PCM spherical ice plates 3 according to the volume of the cold storage tank 1 or water pipe and the design requirements; then, pour the batch of PCM spherical ice plates 3 directly into the cold storage tank body 1 through the feeding port 101, without the need for complicated arrangement and fixing operations; after pouring, slowly inject an appropriate amount of water through the water inlet pipe 102, so that the PCM spherical ice plates 3 are naturally suspended and dispersed in the water;

[0032] After the central air conditioning system is started, the return water flows through the cold storage tank body 1 and fully exchanges heat with the PCM spherical ice plate 3 to achieve efficient cold storage and release. During system operation, the PCM spherical ice plate 3 is regularly inspected and maintained to ensure that its sealing performance and heat exchange performance are always in good condition. If necessary, a small amount of PCM material 4 lost due to leakage or volatilization can be added in a timely manner to ensure the long-term stable operation and high efficiency of the entire cold storage system.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A cold storage tank with spherical phase change material, comprising a cold storage tank body (1), characterized in that, The interior of the cold storage tank body (1) is filled with a heat exchange assembly (2), which includes multiple PCM spherical ice plates (3). The top center of the PCM spherical ice plate (3) is integrally formed with a filling port (301). A sealing cap (302) is installed inside the top of the filling port (301). The outer side of the PCM spherical ice plate (3) is provided with three transverse annular reinforcing ribs (303) and longitudinal semi-annular reinforcing ribs (304). The interior of the PCM spherical ice plate (3) is filled with PCM material (4) through the filling port (301).

2. The cold storage tank with spherical phase change material according to claim 1, characterized in that: The top center of the cold storage tank body (1) is integrally formed with a feeding port (101), and the top of the feeding port (101) is sealed with a top cover. The upper left side of the cold storage tank body (1) is fixedly connected with a water inlet pipe (102), and the bottom side of the cold storage tank body (1) is fixedly connected with a water outlet pipe (103).

3. The cold storage tank with spherical phase change material according to claim 2, characterized in that: Valves are installed inside both the inlet pipe (102) and the outlet pipe (103).

4. The cold storage tank with spherical phase change material according to claim 3, characterized in that: The diameter of the PCM spherical ice plate (3) is 3-5cm, and the density of the PCM spherical ice plate (3) and the density of the PCM material (4) filling it are both no greater than the density of water.

5. The cold storage tank with spherical phase change material according to claim 4, characterized in that: The transverse annular reinforcing ribs (303) and the longitudinal semi-annular reinforcing ribs (304) are arranged in a cross pattern, and the projections of the transverse annular reinforcing ribs (303) and the longitudinal semi-annular reinforcing ribs (304) are perpendicular to each other. The three transverse annular reinforcing ribs (303) are distributed at equal intervals along the arc surface of the PCM spherical ice plate (3).

6. The cold storage tank with spherical phase change material according to claim 5, characterized in that: The sealing cap (302) is fused to the inside of the injection port (301) by an ultrasonic vibration device, and the PCM material (4) is an 8-degree phase change material.

7. The cold storage tank with spherical phase change material according to claim 6, characterized in that: The PCM material (4) accounts for 95-98% of the volume of the PCM spherical ice plate (3), and the PCM spherical ice plate (3) accounts for 65-75% of the volume of the cold storage tank body (1).

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