Phase change energy storage heat storage water tank

Abstract

The utility model discloses a phase change energy storage and heat storage water tank which comprises a phase change energy storage and heat storage outer water tank, the surface of the phase change energy storage and heat storage outer water tank is fixedly connected with a supporting frame, the upper end face of the phase change energy storage and heat storage outer water tank is fixedly connected with a sealing ring, and the upper end face of the sealing ring is connected with a cover plate in a sealed mode. A connecting pipe is fixedly connected to the upper end face of the cover plate, an automatic valve is fixedly connected to the surface of the connecting pipe, a solar water heater is fixedly connected to the upper end face of the cover plate, and the top end of the connecting pipe is fixedly connected to the surface of the solar water heater. A cover plate is limited on the phase-change energy-storage heat-storage outer water tank through a first threaded rod, a worker can conveniently disassemble the cover plate, a stainless steel water pipe is limited on a partition plate through a second threaded rod, the worker can conveniently disassemble, clean or maintain the stainless steel water pipe, and scale generated in the stainless steel water pipe can be reduced through regular cleaning; the heat transfer efficiency of the stainless steel water pipe can be improved.

Description

Technical Field

[0001] The utility model relates to the field of phase-change energy storage water storage tanks, in particular to a phase-change energy storage water storage tank. Background Art

[0002] Patent No. CN214172560U discloses a phase change energy storage box with fin and spiral belt composite enhanced heat transfer technology. The utility model has a reasonable structural design, and the phase change energy storage box is also environmentally friendly, safe to use, and easy to install and maintain.

[0003] However, in the above-mentioned existing phase change energy storage box with fin and spiral belt composite enhanced heat transfer technology, when storing energy, the hot water from the water heater passes through the water inlet pipe to the water inlet cavity, and after entering the heat transfer tube from the water inlet cavity, the heat is transferred to the wall of the heat transfer tube under the vortex induction of the spiral cross belt, and then the heat is transferred to the phase change material shell outside the heat transfer tube through the tube wall. The phase change material shell absorbs heat, and after reaching the phase change temperature, a solid-liquid phase change, i.e., a melting process, occurs. The energy is stored through sensible heat and latent heat, especially latent heat with a larger heat storage capacity. The cooled hot water then flows through the water outlet cavity and the water outlet pipe to the water heater. The heat transfer tube in the device is fixed to the stainless steel cover by welding. When the heat transfer tube needs to be cleaned or repaired, it is difficult for the staff to disassemble the stainless steel cover.

[0004] In order to solve the above problems, the utility model proposes a phase change energy storage water storage tank. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a phase change energy storage water storage tank to solve the technical problem in the prior art that "when storing energy, the hot water from the water heater passes through the water inlet pipe to the water inlet cavity, and after entering the heat transfer tube from the water inlet cavity, the heat is transferred to the tube wall of the heat transfer tube under the induction of the swirl of the spiral cross belt, and then the heat is transferred to the phase change material shell outside the heat transfer tube through the tube wall, the phase change material shell absorbs the heat, and after reaching the phase change temperature, a solid-liquid phase change, i.e. a melting process, occurs, and energy is stored through sensible heat and latent heat, especially latent heat with a larger heat storage capacity, and the cooled hot water then flows through the water outlet cavity and the water outlet pipe to the water heater. The heat transfer tube in the device is fixed to the stainless steel cover by welding. When the heat transfer tube needs to be cleaned or repaired, it is difficult for the staff to disassemble the stainless steel cover."

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: it includes an external hot water storage tank, the surface of the external hot water storage tank is fixedly connected to a support frame, the upper end surface of the external hot water storage tank is fixedly connected to a sealing ring, the upper end surface of the sealing ring is sealingly connected to a cover plate, the upper end surface of the cover plate is fixedly connected to a connecting pipe, the surface of the connecting pipe is fixedly connected to an automatic valve, the upper end surface of the cover plate is fixedly connected to a solar water heater, the top of the connecting pipe is fixedly connected to the surface of the solar water heater, the external hot water storage tank is fixedly connected to thermal insulation cotton, the thermal insulation cotton is fixedly connected to an inner hot water storage tank, the inner hot water storage tank is fixedly connected to two partitions, a stainless steel water pipe is arranged in the partition, a phase change material shell is fixedly connected to the opposite side of the partition, the surface of the stainless steel water pipe passes through the upper end surface of the phase change material shell, and the lower end surface of the external hot water storage tank is fixedly connected to a drain outlet.

[0007] As a preferred technical solution of the utility model, the bottom end of the connecting pipe is connected to the inner water storage tank, and the top end of the connecting pipe is connected to the solar water heater.

[0008] As a preferred technical solution of the utility model, the cover plate and the surface of the external hot water storage tank are both fixedly connected with fixing blocks, and the two fixing blocks are commonly threadedly connected with a first threaded rod.

[0009] As a preferred technical solution of the utility model, a water inlet is fixedly connected to the right side of the solar water heater, and the left end of the water inlet is connected to the inside of the solar water heater.

[0010] As a preferred technical solution of the utility model, a fixing block is fixedly connected to the surface of the stainless steel water pipe, and a second threaded rod is threadedly connected to the fixing block and the partition.

[0011] As a preferred technical solution of the utility model, the top end of the drain outlet is communicated with the internal hot water storage tank, and the surface of the drain outlet is fixedly connected to the automatic valve.

[0012] The utility model provides a phase change energy storage water storage tank, which has the following beneficial effects:

[0013] 1. The cover plate is limited on the external hot water tank by the first threaded rod, which makes it convenient for the staff to disassemble the cover plate. The stainless steel water pipe is limited on the partition by the second threaded rod, which makes it convenient for the staff to disassemble, clean or repair the stainless steel water pipe.

[0014] 2. The device can be widely used in solar water heating systems, solving the problem of excessive heat in sunny weather and insufficient heat in rainy weather. It stores heat when there is sufficient heat and releases it when there is insufficient heat, making efficient use of solar energy and reducing electricity consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a phase-change energy storage water storage tank proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the disassembled structure of a phase-change energy storage water storage tank proposed by the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a stainless steel water pipe of a phase change energy storage water storage tank proposed by the utility model;

[0018] Figure 4 The utility model provides a schematic structural diagram of a phase change material shell of a phase change energy storage water storage tank.

[0019] In the figure: 1 external hot water storage tank, 2 support frame, 3 fixing block, 4 first threaded rod, 5 cover plate, 6 solar water heater, 7 water inlet, 8 sealing ring, 9 internal hot water storage tank, 10 thermal insulation cotton, 11 connecting pipe, 12 automatic valve, 13 drain outlet, 14 partition, 15 stainless steel water pipe, 16 second threaded rod, 17 phase change material shell. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0021] refer to Figure 1-4The utility model provides a technical solution: it includes an external hot water storage tank 1, the surface of the external hot water storage tank 1 is fixedly connected with a support frame 2, the upper end surface of the external hot water storage tank 1 is fixedly connected with a sealing ring 8, the upper end surface of the sealing ring 8 is sealed and connected with a cover plate 5, the upper end surface of the cover plate 5 is fixedly connected with a connecting pipe 11, the surface of the connecting pipe 11 is fixedly connected with an automatic valve 12, the upper end surface of the cover plate 5 is fixedly connected with a solar water heater 6, by setting the solar water heater 6, the clean water inside the solar water heater 6 can be heated by light, the solar energy is efficiently utilized, and the consumption of electric energy is reduced, the top end of the connecting pipe 11 is fixedly connected to the surface of the solar water heater 6, and the external hot water storage tank 1 is fixedly connected There is a thermal insulation cotton 10. By setting the thermal insulation cotton 10, a better thermal insulation effect can be achieved. An inner hot water storage tank 9 is fixedly connected to the thermal insulation cotton 10. Two partitions 14 are fixedly connected to the inner hot water storage tank 9. A stainless steel water pipe 15 is arranged in the partition 14. A phase change material shell 17 is fixedly connected to the opposite side of the partition 14. By setting the phase change material shell 17, the phase change material shell 17 is a paraffin / expanded graphite composite material, and the specific ratio is 0.2g expanded graphite adsorbed 19.8g paraffin. The phase change material shell 17 has high thermal conductivity and strong heat storage capacity. The surface of the stainless steel water pipe 15 passes through the upper end surface of the phase change material shell 17, and the lower end surface of the external hot water storage tank 1 is fixedly connected with a drain outlet 13.

[0022] The bottom end of the connecting pipe 11 is connected to the inner hot water storage tank 9 , and the top end of the connecting pipe 11 is connected to the inner solar water heater 6 .

[0023] The cover plate 5 and the surface of the external hot water storage tank 1 are both fixedly connected with fixing blocks 3, and the two fixing blocks 3 are commonly threadedly connected with a first threaded rod 4.

[0024] Among them, a water inlet 7 is fixedly connected to the right side of the solar water heater 6 , and the left end of the water inlet 7 is connected to the inside of the solar water heater 6 .

[0025] The surface of the stainless steel water pipe 15 is fixedly connected with a fixing block 3 , and the fixing block 3 and the partition plate 14 are threadedly connected with a second threaded rod 16 .

[0026] The top end of the drain port 13 is connected to the inner hot water storage tank 9 , and the surface of the drain port 13 is fixedly connected to the automatic valve 12 .

[0027] The working principle of the utility model is as follows: the staff adds clean water to the solar water heater 6 through the water injection port 7, and the clean water in the solar water heater 6 can be heated by the sun. When the temperature of the clean water is heated to 50 to 60°C, the automatic valve 12 can be controlled to open through the set program, and the hot water flows into the inner hot water storage tank 9 through the connecting pipe 11 and passes through the stainless steel water pipe 15. The heat in the clean water will be transferred to the phase change material shell 17, so that the phase change material shell 17 gradually changes from a solid phase to a liquid phase, and stores energy at the same time. When hot water is needed, only cold water needs to be added to the water injection port 7 again. When the cold water flows to the stainless steel water pipe 15, the phase change material shell 17 will transfer the stored heat to the cold water to heat it, and the phase change material shell 17 gradually changes from a liquid phase to a solid phase. Through the solid-liquid phase change of the material, the heat release process of the heat storage box of the inner hot water storage tank 9 is realized.

[0028] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and utility model concept of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model.

Claims

1. A phase change energy storage water storage tank, comprising an external water storage tank (1), characterized in that: The surface of the external hot water storage tank (1) is fixedly connected to a support frame (2); the upper end surface of the external hot water storage tank (1) is fixedly connected to a sealing ring (8); the upper end surface of the sealing ring (8) is sealingly connected to a cover plate (5); the upper end surface of the cover plate (5) is fixedly connected to a connecting pipe (11); the surface of the connecting pipe (11) is fixedly connected to an automatic valve (12); the upper end surface of the cover plate (5) is fixedly connected to a solar water heater (6); the top end of the connecting pipe (11) is fixedly connected to the surface of the solar water heater (6); The outer hot water storage tank (1) is fixedly connected with a heat insulation cotton (10), the heat insulation cotton (10) is fixedly connected with an inner hot water storage tank (9), the inner hot water storage tank (9) is fixedly connected with two partitions (14), a stainless steel water pipe (15) is arranged in the partition (14), a phase change material shell (17) is fixedly connected to the opposite side of the partition (14), the surface of the stainless steel water pipe (15) passes through the upper end surface of the phase change material shell (17), and the lower end surface of the outer hot water storage tank (1) is fixedly connected with a drain outlet (13).

2. A phase change energy storage water storage tank according to claim 1, characterized in that: The bottom end of the connecting pipe (11) is connected to the inside of the internal hot water storage tank (9), and the top end of the connecting pipe (11) is connected to the inside of the solar water heater (6).

3. A phase change energy storage water storage tank according to claim 1, characterized in that: The cover plate (5) and the surface of the external hot water storage tank (1) are both fixedly connected with a fixing block (3), and a first threaded rod (4) is commonly threadedly connected inside the two fixing blocks (3).

4. A phase change energy storage water storage tank according to claim 1, characterized in that: A water inlet (7) is fixedly connected to the right side of the solar water heater (6), and the left end of the water inlet (7) is connected to the inside of the solar water heater (6).

5. A phase change energy storage water storage tank according to claim 3, characterized in that: One side of the fixing block (3) is fixedly connected to the surface of a stainless steel water pipe (15), and a second threaded rod (16) is threadedly connected between the fixing block (3) and the partition plate (14).

6. A phase change energy storage water storage tank according to claim 1, characterized in that: The top end of the drain port (13) is connected to the inner hot water storage tank (9), and the surface of the drain port (13) is fixedly connected to the automatic valve (12).

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