A high-efficiency and energy-saving nested heat storage device

Abstract

The present invention discloses a highly efficient and energy-saving nested heat storage device, comprising a heat-insulating shell, a columnar hollow heat storage module is arranged in the heat-insulating shell, an adjusting sleeve assembly for adjusting the heat exchange mode is arranged in the heat storage module, and a heat exchange disk is arranged in the adjusting sleeve assembly. The heat-insulating shell comprises a columnar cavity for accommodating the columnar heat storage module and a conical cavity for accommodating the diffuser structure. The present invention adopts a cylindrical heat storage form and the heat exchange holes in the heat storage body are perpendicular to the axis of the heat storage module, which optimizes the internal heat energy distribution of the heat storage body, helps to quickly and stably heat up and realize rapid heat transfer. The heat exchange disk is placed in the heat storage module to realize radiation heat exchange and convection heat exchange-radiation heat exchange mode. When the working temperature of the heat storage module changes, timely adjustments can be made, thereby avoiding power consumption waste, reducing wind system resistance, increasing the service life of the fan, enhancing heat exchange efficiency, reducing the use time of the fan, and reducing system operating costs.

Description

Technical Field

[0001] The invention belongs to the technical field of heat storage heating, and in particular relates to a high-efficiency and energy-saving nested heat storage device. Background Art

[0002] As urbanization continues to grow, the heating industry has developed rapidly. Since 2000, the heating area in northern my country's cities has increased exponentially. As of the end of 2016, about 10% of the world's energy was used for winter heating of various buildings.

[0003] In recent years, people have found that the application of energy storage technology has great social benefits and obvious economic benefits: balancing the peak and valley loads of the power grid; reducing environmental pollution; reducing the social resources of the power grid peak load regulation installed capacity and power transmission and distribution equipment occupied by heating and cooling systems; and making full use of the off-peak electricity price policy to save a lot of operating costs for the user unit. Therefore, electric heating solid energy storage heating technology has been strongly developed and promoted in the heating field in my country.

[0004] During the energy release stage, the heat dissipation body is required to release constant power to the outside. The traditional rectangular solid heat storage device shows inconsistent heat release rate in the axial direction of the heat dissipation channel of the heat storage body. Specifically, the cooling rate of the windward side of the heat storage body is much greater than that of its leeward side. Some heat storage bodies do not release internal heat. In the process of continuous heat storage and heat release of the heat storage body, the gap increases, which eventually leads to the reduction of the overall effective heat storage capacity, the reduction of energy storage efficiency, and the high equipment maintenance rate. In the heating season, the fan runs 24 hours a day, consuming a lot of electricity and energy, and the operating cost remains high. Summary of the invention

[0005] The present invention is proposed to solve the problems existing in the prior art, and its purpose is to provide a highly efficient and energy-saving nested heat storage device.

[0006] The technical solution of the present invention is: a high-efficiency and energy-saving nested heat storage device, including a heat-insulating shell, a columnar hollow heat storage module is arranged in the heat-insulating shell, an adjustment sleeve assembly for adjusting the heat exchange mode is arranged in the heat storage module, and a heat exchange disk is arranged in the adjustment sleeve assembly.

[0007] Furthermore, the heat-insulating shell includes a columnar cavity for accommodating the columnar heat storage module and a conical cavity for accommodating the diffuser structure.

[0008] Furthermore, a plurality of guide plates are arranged on the inner wall of the heat-insulating shell at the columnar cavity, and the heat-insulating shell, two adjacent guide plates and the outer wall of the heat storage module are combined to form a wind bin.

[0009] Furthermore, a diffusion structure is provided at the inner wall of the insulation shell at the conical cavity, and the diffusion structure includes a conical plate, and a diverter plate is provided at the outer wall of the conical plate. The insulation shell, the conical plate, and two connected diverter plates are enclosed to form a diffusion bin, and the diffusion bin is connected to the wind bin.

[0010] Furthermore, the heat storage module includes a plurality of heat storage bodies, the end surfaces of the heat storage bodies are formed with heat dissipation holes connecting the wind bin with the adjustment sleeve assembly, and the heat storage bodies are formed with heating holes for accommodating electric heating elements.

[0011] Furthermore, an extension line of the heat dissipation hole passes through the axis of the adjusting sleeve assembly, and the heat dissipation hole is a gradient hole with an air inlet side larger than an air outlet side.

[0012] Furthermore, the adjusting sleeve assembly includes a fixed cylinder body fixed to the heat storage module, an adjustable and rotatable adjusting cylinder body is arranged in the fixed cylinder body, a fixed wind hole is formed on the outer wall of the fixed cylinder body, a dynamic wind hole is formed on the outer wall of the adjusting cylinder body, and the heat exchange plate is arranged in the inner cavity of the adjusting cylinder body.

[0013] Furthermore, the fixed air holes and the dynamic air holes are both strip holes of the parallel adjustment sleeve assembly. When the fixed air holes and the dynamic air holes are staggered and not connected, they are in a radiation heat exchange mode. When the fixed air holes and the dynamic air holes are connected, they are in a convection heat exchange-radiation heat exchange mode.

[0014] Furthermore, a rotating drive structure for driving the adjusting cylinder is arranged in the heat-insulating shell, and the rotating drive structure includes a driving plate, and a limiting barrel hoop connected to the adjusting cylinder is arranged on the outer ring of the driving plate, and the side wall of the driving plate is connected to the driving shaft of the driver.

[0015] The present invention adopts a cylindrical heat storage form and the heat exchange holes in the heat storage body are perpendicular to the axis of the heat storage module, which optimizes the distribution of heat energy inside the heat storage body, helps to quickly and stably heat up and realize rapid heat transfer. The heat exchange plate is placed in the heat storage module to realize radiation heat exchange and convection heat exchange-radiation heat exchange mode. When the operating temperature of the heat storage module changes, it can make timely adjustments, thereby avoiding power consumption waste, reducing wind system resistance, increasing the service life of the fan, enhancing heat exchange efficiency, reducing the use time of the fan, and greatly reducing the system operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a side view of the present invention;

[0018] Figure 3 is a three-dimensional diagram of the heat storage module in the present invention;

[0019] Figure 4 It is a schematic diagram of the installation of the heat exchange plate in the present invention;

[0020] Figure 5 It is a schematic diagram of the assembly of the adjusting sleeve assembly in the present invention;

[0021] Figure 6 It is a schematic diagram of the assembly of the rotary drive structure of the present invention;

[0022] Figure 7 It is a parts diagram of the diffuser structure in the present invention;

[0023] in:

[0024] 1 Insulation shell 2 Heat storage module

[0025] 3 Heat exchange plate 4 Air duct

[0026] 5 Adjustment sleeve assembly 6 Rotation drive structure

[0027] 7 Bracket 8 Electric heating element

[0028] 9 Wind chamber 10 Base

[0029] 11 Air inlet pipe 12 Guide plate

[0030] 13 Conical plate 14 Diverter plate

[0031] 201 heat storage body 202 heat dissipation hole

[0032] 203 heat conducting fins 204 heating holes

[0033] 501 fixed cylinder 502 adjustment cylinder

[0034] 503Ⅰ thermal insulation layer 504Ⅱ thermal insulation layer

[0035] 505 fixed air hole 506 dynamic air hole

[0036] 601 limit barrel hoop 602 drive plate

[0037] 603 support frame 604 driver

[0038] 605 driving shaft. DETAILED DESCRIPTION

[0039] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and embodiments:

[0040] like Figures 1 to 7As shown, a high-efficiency and energy-saving nested heat storage device includes a heat-insulating shell 1, in which a columnar hollow heat storage module 2 is arranged, and in which an adjusting sleeve assembly 5 for adjusting the heat exchange mode is arranged, and in which a heat exchange disk 3 is arranged.

[0041] The heat-insulating shell 1 includes a columnar cavity for accommodating the columnar heat storage module 2 and a conical cavity for accommodating the diffuser structure.

[0042] A plurality of guide plates 12 are arranged on the inner wall of the heat-insulating shell 1 at the columnar cavity, and the heat-insulating shell 1 , two adjacent guide plates 12 , and the outer wall of the heat storage module 2 together form a wind bin 9 .

[0043] A diffuser structure is provided at the inner wall of the thermal insulation shell 1 at the conical cavity, and the diffuser structure includes a conical plate 13, and a diverter plate 14 is provided at the outer wall of the conical plate 13. The thermal insulation shell 1, the conical plate 13, and two connected diverter plates 14 are enclosed to form a diffuser bin, and the diffuser bin is connected to the wind bin 9.

[0044] The heat storage module 2 includes a plurality of heat storage bodies 201 , and heat dissipation holes 202 for connecting the wind bin 9 with the adjustment sleeve assembly 5 are formed on the end faces of the heat storage bodies 201 . A heating hole 204 for accommodating the electric heating element 8 is formed in the heat storage bodies 201 .

[0045] The extension line of the heat dissipation hole 202 passes through the axis of the adjusting sleeve assembly 5, and the heat dissipation hole 202 is a gradual hole with the air inlet side larger than the air outlet side.

[0046] The adjusting sleeve assembly 5 includes a fixed cylinder body 501 fixed to the heat storage module 2, an adjustable and rotatable adjusting cylinder body 502 is arranged inside the fixed cylinder body 501, a fixed air hole 505 is formed on the outer wall of the fixed cylinder body 501, a dynamic air hole 506 is formed on the outer wall of the adjusting cylinder body 502, and the heat exchange plate 3 is arranged in the inner cavity of the adjusting cylinder body 502.

[0047] The fixed air holes 505 and the dynamic air holes 506 are both strip holes of the parallel adjustment sleeve assembly 5. When the fixed air holes 505 and the dynamic air holes 506 are staggered and not connected, they are in a radiation heat exchange mode. When the fixed air holes 505 and the dynamic air holes 506 are connected, they are in a convection heat exchange-radiation heat exchange mode.

[0048] A rotating drive structure for driving the adjusting cylinder 502 is arranged in the heat-insulating shell 1, and the rotating drive structure includes a driving plate 602, and a limiting barrel hoop 601 connected to the adjusting cylinder 502 is arranged on the outer ring of the driving plate 602, and the side wall of the driving plate 602 is connected to the driving shaft 605 of the driver 604.

[0049] The guide plates 12 face the axis of the heat storage module 2 , and the guide plates 12 are arranged at equal intervals.

[0050] Preferably, the guide plate 12 includes a long guide plate directly in contact with the heat storage module 2 and a short guide plate indirectly supporting and guiding the heat storage module 2 , and a bracket 7 is provided on the short guide plate, and the bracket 7 supports the heat storage module 2 .

[0051] The bracket 7 is an arc-shaped grid bracket, so that it can not only support the heat storage module 2, but also maintain the connection between the wind bin 9 and the heat dissipation hole 202.

[0052] The height difference between the long guide plate and the short guide plate is equal to the thickness of the bracket 7 .

[0053] The regulating cylinder 502 is communicated with the air duct 4 , and the air duct 4 protrudes out of the heat-insulating shell 1 .

[0054] A base 10 is disposed on the outer wall of the heat-insulating shell 1 , and the base 10 enables the heat-insulating shell 1 to be stably placed.

[0055] The end of the heat storage body 201 is also provided with a heat conducting fin 203 for accelerating heat dissipation.

[0056] A heat insulation layer No. I 503 is formed on the outer wall of the fixed cylinder 501 , and a heat insulation layer No. II 504 is formed on the outer wall of the regulating cylinder 502 .

[0057] A support frame 603 is disposed in the heat-insulating shell 1 , and the driver 604 is disposed on the support frame 603 . The driver 604 may be, but is not limited to, a motor, and the electric heating element 8 may be, but is not limited to, an electric heating wire or an electric heating tube.

[0058] The rotary drive structure is arranged in the conical cavity of the heat preservation shell 1 , and the conical plate 13 can block the incoming wind while forming an installation space for accommodating the rotary drive structure between the conical plate 13 and the heat storage module 2 .

[0059] The outer contour of the heat-insulating shell 1 is adapted to its internal cavity and includes a connected cylinder and a cone. A heat storage module 2 is arranged in the heat-insulating shell 1, a heating device is arranged horizontally in the heat storage module 2 parallel to the axis, and an adjusting sleeve assembly 5 is arranged in the hollow of the hollow heat storage module 2. A circulating fan and a heat exchange device are arranged outside the heat-insulating shell 1, and a heat exchange disk 3 of the heat exchange device is arranged in the adjusting sleeve assembly 5. The two ends of the circulating fan are respectively connected to the conical cavity and the adjusting cylinder 502 through the air duct 4.

[0060] The present invention changes the existing rectangular parallelepiped form to a cylindrical form, and the heat exchange holes 202 in the heat storage body 201 are perpendicular to the axis of the heat storage body 201, which optimizes the distribution of heat energy inside the heat storage body 201, helps to quickly and stably increase the temperature and achieve rapid heat transfer.

[0061] The heat exchange plate 3 of the heat exchange equipment is placed in the adjusting sleeve assembly 5, realizing the integration of heat exchange and heat storage, and realizing the radiation heat exchange mode and the convection heat exchange-radiation heat exchange mode. When the working temperature of the heat storage module 2 changes, its working mode can be adjusted in time, thereby avoiding power consumption waste, reducing the resistance of the wind system, increasing the service life of the fan, enhancing the heat exchange efficiency, reducing the use time of the fan, and greatly reducing the system operation cost.

[0062] The conical cavity of the heat preservation shell 1 is the air inlet side, and a diffuser structure is arranged on the air inlet side, wherein the conical plate 13 is a cone, and a plurality of diverter plates 14 are arranged on its conical surface, and the number of diverter plates 14 is consistent with the number of heat dissipation holes 202 in the circumferential direction of the heat storage body 201. The conical plate 13 is coaxial with the heat storage module 2, and a heat insulation layer is arranged inside the conical plate 13. Equipment maintenance channels are arranged on the side walls of the heat preservation shell 1 and the conical plate 13; the conical plate 13 can drain low-temperature air to make the temperature distribution in the circumferential direction of the heat storage module 2 uniform.

[0063] The heat storage body 201 and the guide plate 12 are connected end to end, and a mesh bracket 7 is provided at the lower part. The guide plate 12 allows a certain space distance between the thermal insulation shell 1 and the heat storage module 2 to form an air bin 9, which sends the diverted air to the entrance of each row of heat dissipation holes 202 respectively.

[0064] The heat storage module 2 is a hollow cylinder, the heating hole 204 is perpendicular to the heat storage body 201, and heat-conducting fins are arranged between the heat storage bodies 201 to enhance the heat extraction inside the heat storage module. The heat dissipation channels inside the heat storage body 201 are arranged perpendicular to the axis of the cylinder, and a variable diameter design is adopted. The inlet radius is larger than the outlet radius, which optimizes the distribution of heat energy inside the heat storage body 201 and helps to achieve rapid and stable heat transfer.

[0065] The surface of the fixed cylinder 501 and the regulating cylinder 502 is baked with a layer of infrared radiation, which can increase the infrared emissivity, improve the heat exchange efficiency, and increase the service life of the electric heating radiation heating plate. The inner regulating cylinder 502 can rotate and control the opening and closing of the strip fixed air holes 505 and the dynamic air holes 506 according to the temperature sensor signal, realizing the radiation heat exchange and convection heat exchange-radiation heat exchange mode, and greatly reducing the use time of the circulating fan.

[0066] The working process of the present invention is as follows:

[0067] In the early stage of heat exchange, the regulating sleeve assembly 5 is in a closed state, the temperature of the heat storage module 2 is very high, and the radiation heat exchange capacity is very strong. The regulating sleeve assembly 5 is heated by the heat radiation of the high-temperature heat storage module 2, and the temperature is increased, so that it has stable radiation heat exchange capacity. At the same time, the heat of the regulating sleeve assembly 5 is also continuously transferred to the heat exchange fluid flowing in the heat exchange plate 3.

[0068] In the later stage of heat release, the temperature of the heat storage module 2 decreases, and the radiation heat exchange capacity gradually weakens. At this time, the temperature sensor transmits a low-temperature signal, controls the driver 604 and the drive plate 602 to realize the rotation of the adjustment cylinder 502, so that the fixed air hole 505 and the dynamic air hole 506 are connected, and the circulating fan is turned on. The circulating fan drives the air to flow, and the low-temperature wind after heat exchange is driven by the circulating fan to be sent out from the air duct and then enter the wind bin 9 through the cone-shaped diversion. The temperature of the low-temperature wind is increased by convection heat exchange with the heat storage module 2, passes through the adjusting sleeve assembly 5, and exchanges heat with the heat exchange disk 3 in the adjusting cylinder 502 to transfer the heat energy.

[0069] The present invention adopts a cylindrical heat storage form and the heat exchange holes in the heat storage body are perpendicular to the axis of the heat storage module, which optimizes the distribution of heat energy inside the heat storage body, helps to quickly and stably heat up and realize rapid heat transfer. The heat exchange plate is placed in the heat storage module to realize radiation heat exchange and convection heat exchange-radiation heat exchange mode. When the operating temperature of the heat storage module changes, it can make timely adjustments, thereby avoiding power consumption waste, reducing wind system resistance, increasing the service life of the fan, enhancing heat exchange efficiency, reducing the use time of the fan, and greatly reducing the system operation cost.

Claims

1. A highly efficient and energy-saving nested heat storage device, comprising a heat-insulating shell (1), characterized in that: A columnar hollow heat storage module (2) is arranged in the heat-insulating shell (1), an adjustment sleeve assembly (5) for adjusting the heat exchange mode is arranged in the heat storage module (2), and a heat exchange disk (3) is arranged in the adjustment sleeve assembly (5); The heat-insulating shell (1) comprises a columnar cavity for accommodating a columnar heat storage module (2) and a conical cavity for accommodating a diffuser structure; A plurality of guide plates (12) are provided on the inner wall of the heat-insulating shell (1) at the columnar cavity, and the heat-insulating shell (1), two adjacent guide plates (12), and the outer wall of the heat storage module (2) together form a wind bin (9); A diffuser structure is provided at the inner wall of the thermal insulation shell (1) at the conical cavity, the diffuser structure comprising a conical plate (13), a flow divider plate (14) is provided at the outer wall of the conical plate (13), the thermal insulation shell (1), the conical plate (13), and two connected flow dividers (14) enclose a diffuser bin, and the diffuser bin is connected to the wind bin (9); The heat storage module (2) comprises a plurality of heat storage bodies (201), the end surfaces of the heat storage bodies (201) forming heat dissipation holes (202) for connecting the wind bin (9) with the adjustment sleeve assembly (5), and the heat storage bodies (201) forming heating holes (204) for accommodating electric heating elements (8); The end of the heat storage body (201) is also provided with a heat conducting fin (203) for accelerating heat dissipation.

2. The high-efficiency and energy-saving nested heat storage device according to claim 1, characterized in that: An extension line of the heat dissipation hole (202) passes through the axis of the adjustment sleeve assembly (5), and the heat dissipation hole (202) is a gradual hole with an air inlet side larger than an air outlet side.

3. The high-efficiency and energy-saving nested heat storage device according to claim 1, characterized in that: The regulating sleeve assembly (5) comprises a fixed cylinder (501) fixed to the heat storage module (2); an adjustable and rotatable regulating cylinder (502) is arranged inside the fixed cylinder (501); a fixed air hole (505) is formed on the outer wall of the fixed cylinder (501); a dynamic air hole (506) is formed on the outer wall of the regulating cylinder (502); and the heat exchange disk (3) is arranged in the inner cavity of the regulating cylinder (502).

4. The high-efficiency and energy-saving nested heat storage device according to claim 3, characterized in that: The fixed air holes (505) and the moving air holes (506) are both strip holes of the parallel adjustment sleeve assembly (5); when the fixed air holes (505) and the moving air holes (506) are staggered and disconnected, they are in a radiation heat exchange mode; when the fixed air holes (505) and the moving air holes (506) are connected, they are in a convection heat exchange-radiation heat exchange mode.

5. The high-efficiency and energy-saving nested heat storage device according to claim 3, characterized in that: A rotational drive structure for driving the regulating cylinder (502) is arranged in the heat-insulating shell (1), the rotational drive structure comprising a drive plate (602), a limit barrel hoop (601) connected to the regulating cylinder (502) being arranged at the outer ring of the drive plate (602), and a side wall of the drive plate (602) being connected to a driving shaft (605) of a driver (604).

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