Stable phase change material heat storage device

By installing a drive motor in the phase change material thermal storage device to rotate the gears, the rotation of the inlet pipe and the guide pipe is achieved, which solves the problem of uniform contact between the hot fluid and the phase change material and improves the thermal storage efficiency.

CN223580743UActive Publication Date: 2025-11-21LIAOCHENG XINSHENGDA NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423022114.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-11-21
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

Existing phase change material thermal storage devices lack a diversion structure, causing the hot fluid to enter the storage tank directly through a single pipe, which cannot make uniform contact with the internal phase change material, resulting in low thermal storage efficiency.

Method used

By setting a drive motor to rotate the active gear and the driven gear to rotate synchronously, the inlet pipe and the guide pipe are rotated, so that the high-temperature fluid is sprayed out from the outlet hole, achieving uniform flow of the high-temperature fluid and ensuring full contact with the phase change material inside the heat storage tank.

Benefits of technology

It improves thermal storage efficiency, solves the problem of uniform contact between the thermal fluid and the phase change material, and enhances thermal storage efficiency.

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Abstract

The utility model relates to the technical field of phase change material heat storage, in particular to a stable phase change material heat storage device which comprises a heat storage tank body. A top cover is arranged on the top surface of the heat storage tank body, a liquid inlet pipe is rotationally and hermetically connected to the middle of the upper surface of the top cover, a driven gear is arranged at the upper position of the outer surface of the liquid inlet pipe, a rotary sealing seat is connected to the top surface of the liquid inlet pipe, and a connecting flange is mounted on the top surface of the rotary sealing seat. The lower position of the outer surface of the liquid inlet pipe is connected with four liquid guide pipes which are circumferentially distributed; by arranging the driving motor, the output end of the driving motor can drive the driving gear to rotate during operation, and the driven gear can be driven to synchronously rotate under the meshing of the driven gear and the driving gear, so that the liquid inlet pipe and the liquid guide pipe are driven to rotate; after entering the liquid inlet pipe, the high-temperature fluid is sprayed out from the liquid outlet under the action of pressure in the pipe, so that the high-temperature fluid can be uniformly guided under the rotation of the liquid guide pipe.
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Description

TECHNICAL FIELD

[0001] The utility model relates to phase change material heat storage technical field especially relates to a stable phase change material heat storage device. BACKGROUND

[0002] The heat storage tank for storing phase change heat storage material is a special type of heat storage equipment, which is used for storing phase change heat storage material, and the phase change heat storage material is a substance that can absorb or release a large amount of heat energy when the temperature changes, usually through solid-liquid phase change or liquid-gas phase change, the heat storage tank fills the phase change heat storage material in the container, so that it can absorb heat energy and store phase change when the heat energy supply is excessive, and release heat energy when heat energy is needed.

[0003] The existing phase change material heat storage device lacks a flow distribution structure when in use, and the hot fluid directly enters the inside of the heat storage tank through a single pipeline, the phase change material at the bottom is in contact with the hot fluid first, the uniformity is poor, and it cannot be in uniform contact with the internal phase change material, resulting in low heat storage efficiency.

[0004] Therefore, in view of the problem that the existing phase change material heat storage device lacks a flow distribution structure when in use, resulting in low heat storage efficiency, a stable phase change material heat storage device can be designed, which is driven by a driving motor, and the output end of the driving motor drives the driving gear to rotate, the driven gear is driven to rotate synchronously under the engagement of the driving gear, so as to drive the liquid inlet pipe and the liquid guide pipe to rotate, and the high-temperature fluid is sprayed from the liquid outlet hole under the action of the pressure in the pipe after entering the liquid inlet pipe, so that the uniform flow of the high-temperature fluid can be realized under the rotation of the liquid guide pipe. SUMMARY

[0005] In order to overcome the problem that the existing phase change material heat storage device lacks a flow distribution structure when in use, the hot fluid directly enters the inside of the heat storage tank through a single pipeline, the phase change material at the bottom is in contact with the hot fluid first, the uniformity is poor, and it cannot be in uniform contact with the internal phase change material, resulting in low heat storage efficiency.

[0006] The utility model discloses a stable phase change material heat storage device, including the heat storage tank body, still including driven gear, rotary seal seat, connecting flange, liquid guide pipe, liquid outlet hole, U type frame, drive motor and driving gear, the top surface of heat storage tank body is provided with the top cover, the upper surface middle position rotation sealing of top cover is connected with the liquid inlet pipe, the outer surface of liquid inlet pipe is provided with driven gear on the upper position, the top surface of rotary seal seat is connected with the liquid inlet pipe, the top surface of rotary seal seat is installed with connecting flange, the outer surface of liquid inlet pipe is connected with the four liquid guide pipes of circumferential distribution on the lower position, the side surface of liquid guide pipe is close to the inner wall of heat storage tank body and is seted up with a plurality of liquid outlet holes, the upper surface of top cover is installed with U type frame on the right side position of liquid inlet pipe, the bottom surface of U type frame is installed with drive motor, the output of drive motor is connected with driving gear, and driving gear is engaged with driven gear.

[0007] Preferably, by setting the drive motor, the output end will drive the driving gear to rotate during operation, and the driven gear will be driven to rotate synchronously under the engagement of the driving gear, thereby driving the liquid inlet pipe and the liquid guide pipe to rotate. High-temperature fluid will be sprayed from the position of the liquid outlet hole under the action of the pressure in the pipe after entering the liquid inlet pipe, thereby realizing uniform flow of the high-temperature fluid under the rotation of the liquid guide pipe and making it fully contact with the phase change material inside the heat storage tank body. This improves the heat storage efficiency and solves the problem of the lack of a shunt structure in the existing phase change material heat storage device, which causes the heat fluid to directly enter the inside of the heat storage tank through a single pipeline and cannot uniformly contact the internal phase change material, resulting in low heat storage efficiency.

[0008] Preferably, the inner surface of the heat storage tank body is installed with a fixed ring at the lower position, the fixed ring is installed with a phase change material filling frame, and the outer surface of the phase change material filling frame is attached to the inner surface of the heat storage tank body.

[0009] Preferably, the top surface of the phase change material filling frame is installed with four fixed blocks distributed in a circle, and the upper surface of the fixed block is installed with an eyelet at the middle position.

[0010] Preferably, the bottom surface of the heat storage tank body is provided with a liquid outlet pipe at the middle position, the pipe opening position of the liquid outlet pipe is provided with a connecting assembly, and the liquid outlet pipe is installed with a filter screen through the connecting assembly.

[0011] Preferably, the connecting assembly includes a first connecting piece, a second connecting piece, and a fixed bolt; the port position of the liquid outlet pipe is installed with the first connecting piece, the right surface of the first connecting piece is provided with the second connecting piece, the second connecting piece is connected with the filter screen, six fixed bolts distributed in a circle are installed on the right surface outer edge position of the second connecting piece, and the second connecting piece is connected with the first connecting piece through the fixed bolt.

[0012] As preferred, the outer surface of the heat storage tank body is provided with a fixing base at the lower position, the outer surface of the fixing base is provided with three circumferentially distributed supporting legs, and the bottom surface of the supporting legs is provided with universal wheels.

[0013] As preferred, the supporting legs are connected with the fixing base through welding, and the universal wheels are connected with the supporting legs through bolts.

[0014] The present application has the following beneficial effects:

[0015] 1. The driving motor is arranged, and the output end of the driving motor drives the driving gear to rotate, the driven gear is driven to rotate synchronously under the meshing of the driving gear, the liquid inlet pipe and the liquid guide pipe are driven to rotate, the high-temperature fluid is sprayed from the liquid outlet hole under the action of the pressure in the liquid inlet pipe, the uniform flow of the high-temperature fluid is realized under the rotation of the liquid guide pipe, the high-temperature fluid is fully contacted with the phase change material in the heat storage tank body, and the heat storage efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A stable phase change material heat storage device is shown in the three-dimensional structure schematic view.

[0017] Figure 2 A stable phase change material heat storage device is shown in the three-dimensional structure schematic view.

[0018] Figure 3 A stable phase change material heat storage device is shown in the three-dimensional structure schematic view.

[0019] Figure 4 A stable phase change material heat storage device is shown in the three-dimensional structure schematic view.

[0020] The reference signs are as follows: 1, heat storage tank body; 2, top cover; 3, liquid inlet pipe; 4, driven gear; 5, rotary sealing seat; 6, connecting flange; 7, liquid guide pipe; 8, liquid outlet hole; 9, U-shaped frame; 10, driving motor; 11, driving gear; 12, fixing ring; 13, phase change material filling frame; 14, fixing block; 15, lifting ring; 16, liquid outlet pipe; 171, first connecting plate; 172, second connecting plate; 173, fixing bolt; 18, filter screen; 19, fixing base; 20, supporting leg; 21, universal wheel. DETAILED DESCRIPTION

[0021] The present application will be further described in conjunction with the drawings and examples.

[0022] Referring to Figures 1-4 The utility model provides a kind of embodiment: a stable phase change material heat storage device, including heat storage tank body 1;Further include driven gear 4, rotary seal seat 5, connecting flange 6, liquid guide pipe 7, liquid outlet hole 8, U-shaped frame 9, driving motor 10 and driving gear 11, the top surface of heat storage tank body 1 is provided with top cover 2, the upper surface of top cover 2 is rotationally sealed and connected with liquid inlet pipe 3, the outer surface of liquid inlet pipe 3 is provided with driven gear 4 in upper position, the top surface of liquid inlet pipe 3 is connected with rotary seal seat 5, the top surface of rotary seal seat 5 is installed with connecting flange 6, the outer surface of liquid inlet pipe 3 is connected with the four liquid guide pipes 7 of circumferential distribution in lower position, the side surface of liquid guide pipe 7 close to the inner wall of heat storage tank body 1 is provided with several liquid outlet holes 8, the upper surface of top cover 2 is installed with U-shaped frame 9 in the right side position of liquid inlet pipe 3, the bottom surface of U-shaped frame 9 is installed with driving motor 10, the output end of driving motor 10 is connected with driving gear 11, driving gear 11 is engaged with driven gear 4, by setting driving motor 10, its output end will drive driving gear 11 to rotate, driven gear 4 is driven to rotate synchronously under the engagement of driving gear 11, to drive liquid inlet pipe 3 and liquid guide pipe 7 to rotate, high-temperature fluid is sprayed from the position of liquid outlet hole 8 after entering liquid inlet pipe 3 under the action of pressure in pipe, to realize the uniform flow of high-temperature fluid under the rotation of liquid guide pipe 7, so that it is in full contact with the phase change material in the inside of heat storage tank body 1, to improve heat storage efficiency.

[0023] Referring to Figures 1-4 In the embodiment, the inner surface of heat storage tank body 1 is installed with fixed ring 12 in lower position, the fixed ring 12 is erected with phase change material filling frame 13, the outer surface of phase change material filling frame 13 is attached with the inner surface of heat storage tank body 1, by setting fixed ring 12, phase change material filling frame 13 can be positioned, the movable connection and fixation of phase change material filling frame 13 are realized, the top surface of phase change material filling frame 13 is installed with the four fixed blocks 14 of circumferential distribution, the upper surface of fixed block 14 is installed with lifting ring 15 in middle position, by setting fixed block 14 and lifting ring 15, staff can hoist phase change material filling frame 13 as a whole, to be taken out from the inside of heat storage tank body 1 for replacement and overhaul, the bottom surface of heat storage tank body 1 is provided with liquid outlet pipe 16 in middle position, the pipe orifice position of liquid outlet pipe 16 is provided with connecting assembly, filter screen 18 is installed on liquid outlet pipe 16 through connecting assembly, by setting filter screen 18, heat-exchanged fluid can be filtered, and the adulteration of impurities is reduced.

[0024] Referring to Figures 1-4In the embodiment, the connecting assembly comprises a first connecting sheet 171, a second connecting sheet 172 and a fixing bolt 173; the first connecting sheet 171 is installed at the port position of the liquid outlet pipe 16, the right side surface of the first connecting sheet 171 is provided with the second connecting sheet 172, the second connecting sheet 172 is connected with the filter screen 18, the right side surface of the second connecting sheet 172 is provided with six fixing bolts 173 in a circumferential distribution, the second connecting sheet 172 is connected with the first connecting sheet 171 through the fixing bolts 173, the first connecting sheet 171, the second connecting sheet 172 and the fixing bolt 173 can facilitate the staff to disassemble and assemble the filter screen 18, so as to achieve the purpose of convenient replacement and daily cleaning, the outer surface of the lower position of the heat storage tank body 1 is provided with a fixing seat 19, the outer surface of the fixing seat 19 is provided with three supporting legs 20 in a circumferential distribution, the bottom surface of the supporting leg 20 is provided with a universal wheel 21, the supporting leg 20 and the universal wheel 21 can facilitate the staff to move the whole device, so as to improve the convenience of the equipment, the supporting leg 20 and the fixing seat 19 are connected through welding, the universal wheel 21 and the supporting leg 20 are connected through bolts, the supporting leg 20 and the fixing seat 19 are connected through welding, which can improve the connection strength of the supporting leg 20 and the fixing seat 19, and the universal wheel 21 and the supporting leg 20 are connected through bolts, which can improve the connection strength and facilitate the disassembly and assembly of the universal wheel 21.

[0025] In the embodiment, the connecting assembly comprises a first connecting sheet 171, a second connecting sheet 172 and a fixing bolt 173; the first connecting sheet 171 is installed at the port position of the liquid outlet pipe 16, the right side surface of the first connecting sheet 171 is provided with the second connecting sheet 172, the second connecting sheet 172 is connected with the filter screen 18, the right side surface of the second connecting sheet 172 is provided with six fixing bolts 173 in a circumferential distribution, the second connecting sheet 172 is connected with the first connecting sheet 171 through the fixing bolts 173, the first connecting sheet 171, the second connecting sheet 172 and the fixing bolt 173 can facilitate the staff to disassemble and assemble the filter screen 18, so as to achieve the purpose of convenient replacement and daily cleaning, the outer surface of the lower position of the heat storage tank body 1 is provided with a fixing seat 19, the outer surface of the fixing seat 19 is provided with three supporting legs 20 in a circumferential distribution, the bottom surface of the supporting leg 20 is provided with a universal wheel 21, the supporting leg 20 and the universal wheel 21 can facilitate the staff to move the whole device, so as to improve the convenience of the equipment, the supporting leg 20 and the fixing seat 19 are connected through welding, the universal wheel 21 and the supporting leg 20 are connected through bolts, the supporting leg 20 and the fixing seat 19 are connected through welding, which can improve the connection strength of the supporting leg 20 and the fixing seat 19, and the universal wheel 21 and the supporting leg 20 are connected through bolts, which can improve the connection strength and facilitate the disassembly and assembly of the universal wheel 21.

[0026] Through the above steps, by setting the driving motor 10, the output end will drive the driving gear 11 to rotate during operation, the driven gear 4 will be driven to rotate synchronously under the meshing of the driving gear 11, thereby driving the liquid inlet pipe 3 and the liquid guide pipe 7 to rotate, and the high-temperature fluid will be sprayed from the position of the liquid outlet hole 8 under the action of the pipe pressure after entering the liquid inlet pipe 3, so that uniform flow of the high-temperature fluid can be realized under the rotation of the liquid guide pipe 7, so that the high-temperature fluid can fully contact with the phase change material in the inside of the heat storage tank body 1, so as to improve the heat storage efficiency, so as to solve the problem that the existing phase change material heat storage device lacks a flow distribution structure during use, and the hot fluid directly enters the inside of the heat storage tank through a single pipeline, which cannot uniformly contact with the internal phase change material, resulting in low heat storage efficiency.

Claims

1. A stable phase change material thermal storage device, comprising a thermal storage tank body (1); characterized in that: It also includes a driven gear (4), a rotary seal seat (5), a connecting flange (6), a liquid guide pipe (7), a liquid outlet (8), a U-shaped frame (9), a drive motor (10), and a driving gear (11). The top surface of the heat storage tank body (1) is provided with a top cover (2). The middle position of the upper surface of the top cover (2) is rotatably sealed with an inlet pipe (3). The upper position of the outer surface of the inlet pipe (3) is provided with a driven gear (4). The top surface of the inlet pipe (3) is connected to a rotary seal seat (5). The top surface of the rotary seal seat (5) is... A connecting flange (6) is installed on the surface of the inlet pipe (3). Four circumferentially distributed liquid guide pipes (7) are connected to the lower part of the outer surface of the inlet pipe (3). Several liquid outlet holes (8) are opened on the side surface of the liquid guide pipe (7) near the inner wall of the heat storage tank body (1). A U-shaped frame (9) is installed on the upper surface of the top cover (2) at the right side of the inlet pipe (3). A drive motor (10) is installed on the bottom surface of the U-shaped frame (9). The output end of the drive motor (10) is connected to the drive gear (11). The drive gear (11) meshes with the driven gear (4).

2. The stable phase change material thermal storage device according to claim 1, characterized in that: A fixing ring (12) is installed on the lower part of the inner surface of the heat storage tank body (1). A phase change material filling frame (13) is mounted on the fixing ring (12). The outer surface of the phase change material filling frame (13) is in contact with the inner surface of the heat storage tank body (1).

3. A stable phase change material thermal storage device according to claim 2, characterized in that: The top surface of the phase change material filling frame (13) is equipped with four circumferentially distributed fixing blocks (14), and a lifting ring (15) is installed in the middle of the upper surface of the fixing blocks (14).

4. A stable phase change material thermal storage device according to claim 1, characterized in that: A liquid outlet pipe (16) is provided at the middle position of the bottom surface of the heat storage tank body (1). A connecting component is provided at the pipe opening of the liquid outlet pipe (16). A filter screen (18) is installed on the liquid outlet pipe (16) through the connecting component.

5. A stable phase change material thermal storage device according to claim 4, characterized in that: The connecting assembly includes a first connecting piece (171), a second connecting piece (172), and fixing bolts (173); the first connecting piece (171) is installed at the port of the liquid outlet pipe (16), the second connecting piece (172) is provided on the right side surface of the first connecting piece (171), the second connecting piece (172) is connected to the filter screen (18), and six fixing bolts (173) distributed in a circle are installed at the outer edge of the right side surface of the second connecting piece (172), and the second connecting piece (172) is connected to the first connecting piece (171) through the fixing bolts (173).

6. A stable phase change material thermal storage device according to claim 1, characterized in that: A fixed seat (19) is installed on the lower part of the outer surface of the heat storage tank body (1). Three circumferentially distributed support legs (20) are installed on the outer surface of the fixed seat (19). Universal wheels (21) are installed on the bottom surface of the support legs (20).

7. A stable phase change material thermal storage device according to claim 6, characterized in that: The outrigger (20) is connected to the fixed base (19) by welding, and the caster wheel (21) is connected to the outrigger (20) by bolts.