Uniform heat exchange structure of phase change heat accumulator

Abstract

The utility model discloses a kind of uniform heat exchange structures of phase-change heat accumulator, belong to phase-change heat accumulator technical field, its technical scheme main points include fixed plate, heat transfer mechanism is set between the opposite side of two fixed plate, the top of heat transfer mechanism is provided with filter cartridge, the inside of filter cartridge is provided with filter mechanism;The filter mechanism includes metal sintered filter element, limit ring and first sealing ring, the inner wall of filter cartridge is fixedly connected in the limit ring, the surface of metal sintered filter element and the inner wall of filter cartridge are movably contacted, the bottom of metal sintered filter element and the top of limit ring contact, the top of first sealing ring and the bottom of limit ring are fixedly connected, solve the uniform heat exchange structure of existing part phase-change heat accumulator, when heat transfer medium enters inside, it is not convenient to obtain filtration, easy to cause uniform heat exchange structure blockage, and subsequent replacement of filter filter element is also more inconvenient.

Description

Technical Field

[0001] This utility model relates to the field of phase change heat storage technology, and in particular to a uniform heat exchange structure for a phase change heat storage device. Background Technology

[0002] The uniform heat exchange structure of a phase change heat storage device is a set of component combinations and layout schemes designed to solve the problems of low thermal conductivity and easy local overheating and overcooling of phase change materials. The core goal is to ensure that the heat of the heat transfer medium is uniformly transferred to the phase change material or uniformly absorbed from the phase change material, so as to ensure that the phase change material undergoes a synchronous phase change as a whole, thereby improving the heat storage efficiency and temperature stability.

[0003] The uniform heat exchange structure of some existing phase change heat accumulators is not easily filtered when the heat transfer medium enters the interior, which can easily cause blockage of the uniform heat exchange structure, and the subsequent replacement of the filter element is also inconvenient.

[0004] To address this, a uniform heat exchange structure for a phase change heat storage device is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a uniform heat exchange structure for a phase change heat accumulator, which can solve the problem that in some existing phase change heat accumulators, the uniform heat exchange structure is not easily filtered when the heat transfer medium enters, which can easily cause blockage of the uniform heat exchange structure, and the subsequent replacement of the filter element is also inconvenient.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a uniform heat exchange structure for a phase change heat storage device, including a fixed plate, a heat transfer mechanism disposed between opposite sides of the two fixed plates, a filter cylinder disposed on the top of the heat transfer mechanism, and a filtration mechanism disposed inside the filter cylinder;

[0007] The filtration mechanism includes a sintered metal filter element, a limiting ring, and a first sealing ring. The limiting ring is fixedly connected to the inner wall of the filter cartridge. The surface of the sintered metal filter element is in movable contact with the inner wall of the filter cartridge. The bottom of the sintered metal filter element is in contact with the top of the limiting ring. The top of the first sealing ring is fixedly connected to the bottom of the limiting ring.

[0008] Preferably, the heat transfer mechanism includes two hollow plates, several flat tubes, and several heat transfer plates. The flat tubes are fixedly connected between opposite sides of the two hollow plates. The heat transfer plates are fixedly connected to the flat tubes on the side closest to them. The hollow plates are fixedly connected to the fixed plate on the side closest to it.

[0009] Preferably, both the flat tube and the heat transfer plate are made of aluminum.

[0010] Preferably, the top of the fixing plate is provided with a lifting ring, and a connecting post is fixedly connected to the surface of the lifting ring, and the connecting post is threadedly connected to the inside of the fixing plate.

[0011] Preferably, the surface of the hollow plate is fixedly connected to a connecting pipe, the inner wall of the filter cartridge is threadedly connected to the surface of the top connecting pipe, and a number of anti-slip posts are fixedly connected to the surface of the filter cartridge.

[0012] Preferably, a fixing ring is fixedly sleeved on the surface of the top connecting pipe, and a second sealing ring is fixedly connected to the top of the fixing ring, and the bottom of the filter cartridge is in close contact with the top of the second sealing ring.

[0013] Preferably, the inner wall of the filter cartridge is threaded with a limiting ring, the bottom of the limiting ring is in contact with the top of the metal sintered filter element, the inner wall of the limiting ring is fixedly connected with a fixing rod, and the top of the fixing rod is fixedly connected with a screw block.

[0014] Preferably, the surface of the filter cartridge is fixedly fitted with three raised rings.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application sets up a filtration mechanism with a sintered metal filter element as the core filtration component. The bottom support and limit are achieved by the limiting ring on the inner wall of the filter cartridge, and the top is fixed by the limiting ring connected to the internal thread of the filter cartridge. The limiting ring can be easily installed and removed with the help of the fixing rod and the screw block to prevent the sintered metal filter element from shaking during operation. The first sealing ring is fixed at the bottom of the limiting ring. After the filter cartridge is threadedly connected to the top connecting pipe, the first sealing ring can seal the connection between the top connecting pipe and the filter cartridge. The filter cartridge is detachable by being threaded to the top connecting pipe. The anti-slip posts on the surface facilitate rotation. The fixing ring and the second sealing ring further improve the sealing performance between the filter cartridge and the connecting pipe. The three raised rings on the surface of the filter cartridge can increase the friction with the external heat transfer medium pipeline. Combined with the binding of the cable ties, the connection stability can be strengthened. When replacing the sintered metal filter element, after disassembling the external heat transfer medium pipeline, the limiting ring can be unscrewed and the filter cartridge can be unscrewed to pour out the filter element. The operation is convenient and efficient, which solves the problems of inconvenient heat transfer medium filtration and cumbersome filter element replacement in the uniform heat exchange structure of some existing phase change heat accumulators.

[0017] 2. This application establishes a heat transfer mechanism consisting of two hollow plates, several flat tubes, and heat transfer fins. The flat tubes are fixedly connected between the two hollow plates, forming a stable heat transfer medium flow channel to ensure smooth flow of the heat transfer medium. The heat transfer fins are fixedly connected to the flat tubes, and both are made of aluminum with excellent thermal conductivity. With the reasonable distribution of multiple sets of flat tubes and heat transfer fins, the contact area with the phase change material is greatly expanded, achieving efficient and uniform heat transfer. The hollow plates are fixedly connected to the fixed plates, and the basic support of the two fixed plates ensures the stability of the overall installation of the heat transfer mechanism, providing a reliable structural guarantee for uniform heat exchange, while adapting to the overall operating requirements of the phase change heat storage device. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the uniform heat exchange structure of the phase change heat accumulator of this utility model.

[0019] Figure 2 This is a three-dimensional connection diagram of the top connecting pipe and the filter cartridge in this utility model;

[0020] Figure 3 This is a three-dimensional diagram showing the connection between the top hollow plate and the top connecting pipe in this utility model.

[0021] Figure 4 This is a three-dimensional sectional view of the internal structure of the filter cartridge in this utility model;

[0022] Figure 5 This is an exploded perspective view of the connecting column and the fixing plate in this utility model;

[0023] Figure 6 This utility model Figure 1 A magnified view of a section at point A in the middle;

[0024] Figure 7 This utility model Figure 3 A magnified view of a section at point B in the middle.

[0025] In the diagram, 1 is a fixed plate; 2 is a heat transfer mechanism; 201 is a hollow plate; 202 is a flat tube; 203 is a heat transfer plate; 3 is a connecting pipe; 4 is a filter cartridge; 5 is a filtration mechanism; 501 is a sintered metal filter element; 502 is a limiting ring; 503 is a first sealing ring; 6 is a limiting ring; 7 is a screw block; 8 is a fixing rod; 9 is a raised ring; 10 is a lifting ring; 11 is a connecting column; 12 is a second sealing ring; 13 is a fixing ring; and 14 is an anti-slip column. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-7 The present invention provides the following technical solution:

[0028] A uniform heat exchange structure for a phase change heat storage device includes a fixed plate 1, a heat transfer mechanism 2 is provided between two opposite sides of the two fixed plates 1, a filter cylinder 4 is provided on the top of the heat transfer mechanism 2, and a filtration mechanism 5 is provided inside the filter cylinder 4.

[0029] The filtration mechanism 5 includes a sintered metal filter element 501, a limiting ring 502, and a first sealing ring 503. The limiting ring 502 is fixedly connected to the inner wall of the filter cartridge 4. The surface of the sintered metal filter element 501 is in movable contact with the inner wall of the filter cartridge 4. The bottom of the sintered metal filter element 501 is in contact with the top of the limiting ring 502. The top of the first sealing ring 503 is fixedly connected to the bottom of the limiting ring 502.

[0030] In this embodiment: two fixed plates 1 serve as the basic support, with the heat transfer mechanism 2 acting as the core for uniform heat exchange. This mechanism includes two hollow plates 201, several flat tubes 202, and heat transfer plates 203. The flat tubes 202 connect to the hollow plates 201 to allow the heat transfer medium to flow. The aluminum flat tubes 202 and aluminum heat transfer plates 203 have good thermal conductivity, and uniform heat transfer is achieved by distributing and expanding the contact area with the phase change material. The hollow plates 201 are fixed to the fixed plates 1 to ensure stability. A filter mechanism 5 is located inside the filter cartridge 4 at the top of the heat transfer mechanism 2. The sintered metal filter element 501 is supported by a limiting ring 502 and fixed by a limiting ring 6. A first sealing ring 503 enhances the sealing performance. The filter medium... To prevent clogging, the lifting ring 10 facilitates the overall hoisting of the structure. The filter cartridge 4 is threadedly connected to the connecting pipe 3. The anti-slip column 14 facilitates the rotation of the filter cartridge 4. The second sealing ring 12 strengthens the seal. The raised ring 9 ensures the stability of the external pipeline connection and can be tied with external cable ties. When replacing the filter element, simply remove the external heat transfer medium pipeline, unscrew the limit ring 6, and unscrew the filter cartridge 4 to pour out the metal sintered filter element 501. The operation is convenient and efficient, solving the problem that in some existing phase change heat accumulators, the uniform heat exchange structure is not easily filtered when the heat transfer medium enters the interior, which can easily cause clogging of the uniform heat exchange structure and make subsequent replacement of the filter element inconvenient.

[0031] Specifically, such as Figure 6As shown, the heat transfer mechanism 2 includes two hollow plates 201, several flat tubes 202 and several heat transfer plates 203. The flat tubes 202 are fixedly connected between the two hollow plates 201 on opposite sides. The heat transfer plates 203 are fixedly connected to the flat tubes 202 on the side closer to the flat tubes 202. The hollow plates 201 are fixedly connected to the fixed plate 1 on the side closer to the fixed plate 1.

[0032] Specifically, such as Figure 6 As shown, both the flat tube 202 and the heat transfer plate 203 are made of aluminum.

[0033] Specifically, such as Figure 5 As shown, a lifting ring 10 is provided on the top of the fixing plate 1, and a connecting post 11 is fixedly connected to the surface of the lifting ring 10. The connecting post 11 is threadedly connected to the inside of the fixing plate 1.

[0034] In this embodiment: the heat transfer mechanism 2 is composed of a hollow plate 201, a flat tube 202 and a heat transfer plate 203. The flat tube 202 connects to the hollow plate 201 to form a stable medium flow channel. The aluminum material has high thermal conductivity. With the distribution design of multiple sets of flat tubes 202 and heat transfer plates 203, the contact area of ​​the phase change material is greatly expanded to ensure uniform heat exchange. The hollow plate 201 and the fixed plate 1 are fixed to improve the structural stability. The lifting ring 10 is threadedly connected to the fixed plate 1 through the connecting column 11, which facilitates the overall hoisting and transportation of the structure and is suitable for installation and maintenance needs.

[0035] Specifically, such as Figure 2 , Figure 3 and Figure 4 As shown, a connecting pipe 3 is fixedly connected to the surface of the hollow plate 201, the inner wall of the filter cylinder 4 is threadedly connected to the surface of the top connecting pipe 3, and several anti-slip posts 14 are fixedly connected to the surface of the filter cylinder 4.

[0036] Specifically, such as Figure 7 As shown, a fixing ring 13 is fixedly sleeved on the surface of the top connecting pipe 3, and a second sealing ring 12 is fixedly connected to the top of the fixing ring 13. The bottom of the filter cylinder 4 is in close contact with the top of the second sealing ring 12.

[0037] In this embodiment: the connecting pipe 3 of the hollow plate 201 is threadedly connected to the filter cartridge 4, enabling quick assembly and disassembly of the filter cartridge 4. The anti-slip posts 14 on the surface of the filter cartridge 4 provide convenient gripping points for easy operation. The fixing ring 13, together with the second sealing ring 12, fits tightly against the bottom of the filter cartridge 4, effectively enhancing the sealing performance between the connecting pipe 3 and the filter cartridge 4 and preventing leakage of the heat transfer medium.

[0038] Specifically, such as Figure 4 As shown, a limiting ring 6 is threadedly connected to the inner wall of the filter cartridge 4. The bottom of the limiting ring 6 contacts the top of the metal sintered filter element 501. A fixing rod 8 is fixedly connected to the inner wall of the limiting ring 6, and a screw block 7 is fixedly connected to the top of the fixing rod 8.

[0039] Specifically, such as Figure 4 As shown, the surface of the filter cartridge 4 is fixedly fitted with three raised rings 9.

[0040] In this embodiment: the limiting ring 6 is connected to the filter cartridge 4 by threads, and together with the fixing rod 8 and the screw block 7, the top of the metal sintered filter element 501 can be quickly limited and fixed to prevent it from shaking during operation. The three raised rings 9 on the surface of the filter cartridge 4 can increase the friction with the external pipeline, and together with the cable tie binding, the connection stability can be improved to prevent the pipeline from falling off during media transportation.

[0041] Working Principle: Using two fixed plates 1 as the basic support components, the heat transfer mechanism 2 between their opposite sides is the core for achieving uniform heat exchange. The heat transfer mechanism 2 includes two hollow plates 201, several flat tubes 202, and several heat transfer plates 203. The flat tubes 202 are fixedly connected between the opposite sides of the two hollow plates 201, allowing the heat transfer medium to flow within the channel formed by the hollow plates 201 and the flat tubes 202. The heat transfer plates 203 are fixedly connected to the flat tubes 202 on the side closest to them. Both the flat tubes 202 and the heat transfer plates 203 are made of aluminum, which has excellent thermal conductivity, enabling efficient transfer of heat from the heat transfer medium within the flat tubes 202 to the heat transfer plates 203. Furthermore, the distribution of multiple heat transfer plates 203 and flat tubes 202 expands the heat exchange with the flat tubes 202. The contact area of ​​the phase change material enables uniform heat transfer to the phase change material. Simultaneously, the side of the hollow plate 201 closest to the fixed plate 1 is fixedly connected to the fixed plate 1, ensuring stable installation of the heat transfer mechanism 2. A filter cylinder 4 is installed at the top of the heat transfer mechanism 2, and a filtration mechanism 5 is installed inside the filter cylinder 4. The filtration mechanism 5 includes a sintered metal filter element 501, a limiting ring 502, and a first sealing ring 503. The limiting ring 502 is fixedly connected to the inner wall of the filter cylinder 4. The surface of the sintered metal filter element 501 is in movable contact with the inner wall of the filter cylinder 4, and its bottom is in contact with the top of the limiting ring 502. The limiting ring 502 provides bottom support and limiting for the sintered metal filter element 501. The top of the first sealing ring 503 is fixedly connected to the bottom of the limiting ring 502. The filter cylinder 4 is connected to the top... After the connecting pipe 3 is threaded, the first sealing ring 503 can seal the space between the top connecting pipe 3 and the filter cartridge 4. A lifting ring 10 is provided on the top of the fixing plate 1, and a connecting post 11 is fixedly connected to the surface of the lifting ring 10. The connecting post 11 is threadedly connected to the inside of the fixing plate 1. The lifting ring 10 facilitates the hoisting and transportation of the entire structure. The surface of the hollow plate 201 is fixedly connected to the connecting pipe 3. The inner wall of the filter cartridge 4 is threadedly connected to the surface of the top connecting pipe 3, realizing the detachable connection between the filter cartridge 4 and the heat transfer mechanism 2. Several anti-slip posts 14 are fixedly connected to the surface of the filter cartridge 4 to provide anti-slip function for rotating the filter cartridge 4 and facilitate the rotation of the filter cartridge 4. A fixing ring 13 is fixedly sleeved on the surface of the top connecting pipe 3, and a second sealing ring is fixedly connected to the top of the fixing ring 13. 12. The bottom of the filter cartridge 4 is in close contact with the top of the second sealing ring 12, further enhancing the sealing performance of the connection between the filter cartridge 4 and the connecting pipe 3. A limit ring 6 is threadedly connected to the inner wall of the filter cartridge 4. The bottom of the limit ring 6 contacts the top of the sintered metal filter element 501, which limits the top of the sintered metal filter element 501 and prevents it from shaking inside the filter cartridge 4. A fixing rod 8 is fixedly connected to the inner wall of the limit ring 6, and a screw block 7 is fixedly connected to the top of the fixing rod 8. By screwing the screw block 7, the limit ring 6 can be rotated, which facilitates the disassembly and installation of the limit ring 6. Three raised rings 9 are fixedly fitted on the surface of the filter cartridge 4. When the heat transfer medium is connected to the filter cartridge 4 through the external pipe, the raised rings 9 can increase the friction between the external pipe and the filter cartridge 4, making the connection more stable.Furthermore, the connection stability between the external heat transfer medium pipeline and the filter cartridge 4 can be further ensured by securing the gap between the raised rings 9 with external cable ties. When it is necessary to replace the metal sintered filter element 501, first disassemble the external heat transfer medium pipeline, then rotate the screw block 7 to drive the limiting ring 6 out of the filter cartridge 4, and then hold the anti-slip column 14 to rotate the filter cartridge 4 to separate it from the top connecting pipe 3. The metal sintered filter element 501 can then be poured out of the filter cartridge 4 for replacement. The whole process is convenient and improves the replacement efficiency of the filter element. It solves the problem that in some existing phase change heat accumulators, the uniform heat exchange structure is not easily filtered when the heat transfer medium enters the interior, which can easily cause blockage of the uniform heat exchange structure and make subsequent replacement of the filter element inconvenient. It should be noted that the phase change heat accumulator is a mature technology that has been published, and the contents not described in detail in this specification are all existing technologies known to those skilled in the art. Their basic mechanisms are not elaborated here.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A uniform heat exchange structure for a phase change heat storage device, comprising two fixed plates (1), characterized in that: A heat transfer mechanism (2) is provided between the opposite sides of the two fixed plates (1), and a filter cylinder (4) is provided on the top of the heat transfer mechanism (2), and a filtration mechanism (5) is provided inside the filter cylinder (4). The filtration mechanism (5) includes a metal sintered filter element (501), a limiting ring (502), and a first sealing ring (503). The limiting ring (502) is fixedly connected to the inner wall of the filter cylinder (4). The surface of the metal sintered filter element (501) is in movable contact with the inner wall of the filter cylinder (4). The bottom of the metal sintered filter element (501) is in contact with the top of the limiting ring (502). The top of the first sealing ring (503) is fixedly connected to the bottom of the limiting ring (502).

2. The uniform heat exchange structure of a phase change heat storage device according to claim 1, characterized in that: The heat transfer mechanism (2) includes two hollow plates (201), several flat tubes (202) and several heat transfer plates (203). The flat tubes (202) are fixedly connected between the two hollow plates (201) on opposite sides. The heat transfer plates (203) are fixedly connected to the flat tubes (202) on the side close to the flat tubes (202). The hollow plates (201) are fixedly connected to the fixed plate (1) on the side close to the fixed plate (1).

3. The uniform heat exchange structure of a phase change heat storage device according to claim 2, characterized in that: Both the flat tube (202) and the heat transfer plate (203) are made of aluminum.

4. The uniform heat exchange structure of a phase change heat storage device according to claim 1, characterized in that: The top of the fixing plate (1) is provided with a lifting ring (10), and a connecting column (11) is fixedly connected to the surface of the lifting ring (10). The connecting column (11) is threadedly connected to the inside of the fixing plate (1).

5. The uniform heat exchange structure of a phase change heat storage device according to claim 2, characterized in that: The surface of the hollow plate (201) is fixedly connected to a connecting pipe (3), the inner wall of the filter cylinder (4) is threadedly connected to the surface of the top connecting pipe (3), and a number of anti-slip posts (14) are fixedly connected to the surface of the filter cylinder (4).

6. The uniform heat exchange structure of a phase change heat storage device according to claim 5, characterized in that: A fixing ring (13) is fixedly sleeved on the surface of the top connecting pipe (3), and a second sealing ring (12) is fixedly connected to the top of the fixing ring (13). The bottom of the filter cylinder (4) is in close contact with the top of the second sealing ring (12).

7. The uniform heat exchange structure of a phase change heat storage device according to claim 1, characterized in that: The inner wall of the filter cartridge (4) is threaded with a limiting ring (6), the bottom of the limiting ring (6) is in contact with the top of the metal sintered filter element (501), the inner wall of the limiting ring (6) is fixedly connected with a fixing rod (8), and the top of the fixing rod (8) is fixedly connected with a screw block (7).

8. The uniform heat exchange structure of a phase change heat storage device according to claim 1, characterized in that: The surface of the filter cartridge (4) is fixedly fitted with three raised rings (9).

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