Independent heat storage and heating device

Abstract

The invention discloses an independent heat storage and heating device, including a power generation module, and a phase change medium circulation channel formed by connecting the heat storage and heating module, a terminal heating device, and a capillary vacuum driven pump through a pipeline; a heat storage component for heating the phase change medium passing through the heat storage and heating module is provided in the heat storage module, and the power generation module generates electric energy and stores it in the heat storage component; the capillary vacuum driven pump is used to provide a driving force for the phase change medium to flow in the phase change medium circulation channel; the terminal heating device releases the heat of the phase change medium inside it to the outside. The independent heat storage and heating device forms a small power generation-heat storage-heat supply in a renewable energy microgrid system, the device is simple and easy to assemble, the heat storage and heating modules are grouped to store heat and release heat, and operate independently, the device is highly flexible, easy to transport and maintain, and reduces the operation and maintenance cost and the user's heating cost.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage equipment, and in particular to an independent heat storage and heating device. Background Art

[0002] Solar heating is a technology that uses solar collectors to collect solar radiation and convert it into heat energy for heating. The solar heating system uses solar collectors to collect solar radiation and convert it into heat energy, using liquid as the heat transfer medium and water as the heat storage medium. The heat is sent to the room through the heat dissipation components for heating.

[0003] At present, the traditional solar heating system is equipped with an auxiliary power supply to provide power for the flow of the medium. In addition, the traditional solar heating system has complex equipment, inconvenient shipment and high maintenance cost. Summary of the invention

[0004] Therefore, in order to overcome the defects of the heat storage and heating device in the prior art, such as the complex structure and high shipping and maintenance costs, the present invention provides an independent heat storage and heating device.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] An independent heat storage and heating device comprises a power generation module and a phase change medium circulation channel; the phase change medium circulation channel is provided with a heat storage and heating module, a terminal heating device and a capillary vacuum driven pump; the heat storage and heating module is provided with a heat storage component for heating the phase change medium passing through the heat storage and heating module, the power generation module generates electrical energy and stores it in the heat storage component; the capillary vacuum driven pump is used to provide driving force for the phase change medium to flow in the phase change medium circulation channel; the terminal heating device is used to release the heat of the phase change medium inside it to the outside.

[0007] According to some embodiments of the present invention, the power generation module is a photovoltaic power generation module or a wind power generation module.

[0008] According to some embodiments of the present invention, the heat storage and heating module further includes an electric heating element penetrating the heat storage component for providing thermal energy to the heat storage component, and the electric heating element is electrically connected to a circuit loop of the power generation module.

[0009] According to some embodiments of the present invention, the heat storage and heating module includes multiple groups of heat storage components, each group of the heat storage components is provided with an electric heating element, the power supply circuits of the multiple groups of electric heating elements are respectively arranged in parallel, and each of the power supply circuits is provided with a switch for controlling the on and off of the power supply circuit.

[0010] According to some embodiments of the present invention, the heat storage and heating module includes a collecting pipeline connected to the terminal heating device and the capillary vacuum driven pump, and the collecting pipeline is located at the periphery of the heat storage element and is used to absorb the heat of the heat storage element to heat the phase change medium flowing therein.

[0011] According to some embodiments of the present invention, a plurality of groups of heat storage components are stacked in sequence from top to bottom; the collecting pipeline includes a collecting pipe connected to the terminal heat supply device and the capillary vacuum driven pump, a heat exchange plate disposed between two adjacent layers of the heat storage components and having a flow channel inside, and a vertical pipe connected between the heat exchange plate and the collecting pipe and located outside the heat storage component, the flow channel in the heat exchange plate, the vertical pipe and the collecting pipe are connected. According to some embodiments of the present invention, the inner wall of the heat exchange plate is provided with a plurality of heat exchange ribs extending into the flow channel, a plurality of flow channels are provided in the heat exchange plate, a plurality of vertical pipes are connected between the heat exchange plate and the collecting pipe, and each vertical pipe is connected to a flow channel in the heat exchange plate.

[0012] The heat exchange plate is provided with a plurality of heat exchange ribs extending into the flow channel, which can increase the heat exchange area and enhance the heat exchange effect; at the same time, the heat exchange plate is provided with a flat plate structure, which is convenient for the installation of the heat storage component.

[0013] According to some embodiments of the present invention, the collecting pipe includes a lower collecting pipe and an upper collecting pipe, the lower collecting pipe is connected to the capillary vacuum driven pump, the upper collecting pipe is connected to the terminal heating equipment, the vertical pipe connects the lower collecting pipe and the upper collecting pipe, and the vertical pipe portion is connected to the flow channel.

[0014] The collecting pipeline is composed of an upper collecting pipe, a lower collecting pipe, a vertical tube and a heat exchange plate, which can increase the heat exchange between the medium in the tube and the heat storage component, achieve sufficient heat exchange with the heat storage component, and improve the heat exchange efficiency of the system.

[0015] According to some embodiments of the present invention, the inner diameter of the upper portion of the vertical pipe is smaller than the inner diameter of the bottom portion of the vertical pipe.

[0016] The way in which the vertical pipe gradually changes in diameter from bottom to top helps the medium in the pipe to absorb and sublimate, providing power drive for the system circulation.

[0017] According to some embodiments of the present invention, the manifolds are provided in a plurality of groups, the capillary vacuum driven pumps are provided in a plurality of groups, and the manifolds are arranged in parallel with the capillary vacuum driven pumps.

[0018] The independent heat storage and heating device provided by the present invention has a heat storage and heating module including multiple groups of independent heat storage components, and the terminal heating equipment and the capillary vacuum drive pump are also provided with multiple groups and are arranged correspondingly, which can realize grouped heat storage and heat release and increase the flexibility of the equipment.

[0019] The technical solution of the present invention has the following advantages:

[0020] 1. The independent heat storage and heating device provided by the present invention has a power generation module that converts electrical energy into heat energy and stores it in the heat storage component of the heat storage and heating module. The capillary vacuum driven pump drives the phase change medium in the phase change medium circulation channel to flow toward the heat storage and heating module. When the phase change medium flows through the heat storage component, it absorbs heat and flows through the terminal heating device. After the terminal heating device releases heat, it circulates in the phase change medium circulation channel driven by the capillary vacuum driven pump. The independent heat storage and heating device forms a small power generation-heat storage-heat supply in a renewable energy microgrid system. The equipment is simple and easy to assemble. The heat storage and heating modules are grouped to store heat and release heat, and operate independently. The equipment is highly flexible and easy to transport and maintain, reducing operation and maintenance costs and user heating costs.

[0021] 2. The independent heat storage heating device provided by the present invention does not change the original winter heating mode, fully utilizes the existing terminal heating equipment, and reduces equipment investment.

[0022] 3. The independent heat storage and heating device provided by the present invention drives the capillary vacuum driven pump to move in the phase change medium circulation channel by utilizing the pressure difference generated at both ends of the capillary vacuum driven pump after the medium phase changes, thereby realizing passive driving of the medium in the phase change medium circulation channel and completing the heat exchange and heat release process of the circulating phase change medium. There is no power equipment maintenance cost, etc., further reducing the user's heating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic structural diagram of an independent heat storage and heating device according to some embodiments of the present invention;

[0025] Figure 2 It is a schematic structural diagram of a heat storage and heating module of some embodiments of the present invention;

[0026] Figure 3 It is a structural cross-sectional view of a heat exchange plate according to some embodiments of the present invention.

[0027] Explanation of the reference numerals: 1. Capillary vacuum driven pump; 2. Heat storage and heating module; 3. Terminal heating equipment; 4. Power generation module; 21. Heat storage component; 22. Electric heating element; 23. Lower collecting pipe; 24. Vertical pipe; 25. Upper collecting pipe; 26. Heat exchange plate; 261. Flow channel; 262. Heat exchange rib. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Reference Figure 1 As shown, in some embodiments of the present invention, an independent heat storage and heating device includes a power generation module 4 and a phase change medium circulation channel, and a heat storage and heating module 2, a terminal heating device 3 and a capillary vacuum driven pump 1 are provided on the phase change medium circulation channel; a heat storage component 21 for heating the phase change medium passing through the heat storage and heating module 2 is provided in the heat storage and heating module 2, and the power generation module 4 generates electrical energy and stores it in the heat storage component 21; the capillary vacuum driven pump 1 is used to provide a driving force for the phase change medium to flow in the phase change medium circulation channel; the terminal heating device 3 releases the heat of the phase change medium inside it to the outside.

[0033] Specifically, the power generation module 4 converts electrical energy into heat energy and stores it in the heat storage element 21 of the heat storage and heating module 2. The capillary vacuum driven pump 1 drives the phase change medium in the phase change medium circulation channel to flow toward the heat storage and heating module 2. The phase change medium absorbs heat when flowing through the heat storage element 21, and then flows to the terminal heating device 3. After the terminal heating device 3 releases heat, it circulates in the phase change medium circulation channel driven by the capillary vacuum driven pump 1. The independent heat storage and heating device forms a small power generation-heat storage-heat supply in a renewable energy microgrid system. The equipment is simple and easy to assemble. The heat storage and heating modules are grouped to store and release heat and operate independently. The equipment is highly flexible and easy to transport and maintain, reducing operation and maintenance costs and user heating costs.

[0034] Reference Figure 1 As shown, in some embodiments of the present invention, the capillary vacuum driven pump 1 is arranged at the front end of the heat storage and heating module 2 and at the rear end of the terminal heating device 3. The phase change medium undergoes a phase change in the heat storage and heating module 2 and a secondary phase change in the terminal heating device 3, that is, the state of the phase change medium in the pipelines before and after the capillary vacuum driven pump 1 is inconsistent, so that the pressure in the pipelines before and after the capillary vacuum driven pump 1 is inconsistent, and the pressure difference of the pipelines before and after the capillary vacuum driven pump 1 is used to realize passive driving, complete the heat exchange and heat release process of the phase change medium, and provide heat for users.

[0035] It is understandable that the phase change medium uses a phase change organic solvent such as water, ethanol, paraffin, etc. When the phase change medium is ethanol, the phase change medium absorbs heat and vaporizes in the heat storage and heating device, and releases heat and liquefies in the terminal heating device 3, so that a pressure difference occurs in the pipelines before and after the capillary vacuum drive pump 1, and the capillary vacuum drive pump 1 realizes passive drive. Using the capillary vacuum drive pump 1 can reduce maintenance costs.

[0036] In some embodiments of the present invention, the power generation module 4 is a photovoltaic power generation module or a wind power generation module.

[0037] Specifically, photovoltaic power generation modules or wind power generation modules are used to achieve clean heating, replace the original energy supply methods such as coal and gas, adopt clean and renewable energy, save resources and protect the environment.

[0038] In some embodiments of the present invention, the heat storage and heating module 2 further includes an electric heating element 22 which is inserted into the heat storage element 21 and used to provide heat energy to the heat storage element 21 . The electric heating element 22 is electrically connected to the circuit loop of the power generation module 4 .

[0039] In some embodiments of the present invention, the heat storage heating module 2 includes multiple groups of heat storage components 21, each group of heat storage components 21 is provided with an electric heating element 22, the power supply circuits of the multiple groups of electric heating elements 22 are respectively arranged in parallel, and each power supply circuit is provided with a switch for controlling the on and off of the power supply circuit.

[0040] Specifically, the electric heating element 22 is electrically connected to the power generation module 4, and the electric heating element 22 is arranged in the middle of the heat storage part 21. The heat energy generated by the electric heating element 22 is transferred to the heat storage part 21 for storage. A switch for controlling the on and off of the power supply circuit is arranged between the electric heating element 22 and the power generation module 4. There are multiple electric heating elements 22, wherein multiple electric heating elements 22 and the power generation module 4 are arranged in parallel to avoid affecting the operation of the entire heat storage and heating module 2 when a single circuit is damaged. In addition, the parallel arrangement facilitates the operation and maintenance of a single group of electric heating elements 22, speeds up the troubleshooting efficiency, and saves costs.

[0041] It should be noted that, in some embodiments of the present invention, the heat storage element 21 is made of solid heat storage material, and the material of the heat storage element 21 is not a limitation of the present invention.

[0042] In some embodiments of the present invention, the heat storage and heating module 2 includes a collecting pipeline connected to the terminal heating device 3 and the capillary vacuum driven pump 1. The collecting pipeline is located on the periphery of the heat storage element 21 and is used to absorb the heat of the heat storage element 21 to heat the phase change medium flowing therein.

[0043] Reference Figure 2 As shown, in some embodiments of the present invention, multiple groups of heat storage elements 21 are stacked in sequence from top to bottom; the collecting pipeline includes a collecting pipe connected to the terminal heating device 3 and the capillary vacuum driven pump 1, a heat exchange plate 26 arranged between two adjacent layers of heat storage elements 21 and having a flow channel 261 inside, and a vertical pipe 24 connected between the heat exchange plate 26 and the collecting pipe and located outside the heat storage element 21, and the flow channel 261 in the heat exchange plate 26, the vertical pipe 24 and the collecting pipe are connected.

[0044] Specifically, the heat exchange plate 26 is used to increase the heat exchange area and strengthen the heat exchange. In addition, the flat plate structure facilitates the stacking installation of the heat storage element 21. Multiple groups of heat storage elements 21 are stacked to increase the heat exchange distance of the phase change medium, that is, to increase the heat absorption time of the phase change medium, so that the phase change medium can fully absorb heat.

[0045] Reference Figure 3 As shown, in some embodiments of the present invention, the inner wall of the heat exchange plate 26 is provided with a plurality of heat exchange ribs 262 extending into the flow channel 261. Specifically, the function of the heat exchange ribs 262 is to improve the heat exchange efficiency of the phase change medium.

[0046] In some embodiments of the present invention, a plurality of flow channels 261 are provided in the heat exchange plate 26 , a plurality of vertical tubes 24 are connected between the heat exchange plate 26 and the collecting pipe, and each vertical tube 24 is connected to a flow channel 261 in the heat exchange plate 26 .

[0047] Reference Figure 2As shown, in some embodiments of the present invention, the collecting pipe includes a lower collecting pipe 23 and an upper collecting pipe 25, the lower collecting pipe 23 is connected to the capillary vacuum drive pump 1, the upper collecting pipe 25 is connected to the terminal heating equipment 3, the vertical pipe 24 connects the lower collecting pipe 23 and the upper collecting pipe 25, and a part of the vertical pipe 24 is connected to the flow channel 261.

[0048] Specifically, the phase change medium flows from bottom to top through the lower manifold 23, the vertical tube 24, and the flow channel 261, and flows out from the upper manifold 25. Under the action of gravity, the flow rate of the phase change medium is slow, which is more conducive to the heat transfer between the phase change medium and the heat exchange plate 26, so that the phase change medium can fully absorb heat.

[0049] In some embodiments of the present invention, the inner diameter of the upper part of the vertical tube 24 is smaller than the inner diameter of the bottom of the vertical tube 24. Specifically, the aperture of the vertical tube 24 gradually decreases from bottom to top, so that the flow rate of the phase change medium in the upper part of the vertical tube 24 decreases, and the longer the phase change medium stays in the vertical tube 24, the more heat it absorbs. This helps the state of the phase change medium change, providing power drive for the system cycle.

[0050] In some embodiments of the present invention, a plurality of manifolds are provided, a plurality of capillary vacuum driven pumps 1 are provided, and the manifolds and the capillary vacuum driven pumps 1 are arranged in parallel.

[0051] Specifically, the manifold is arranged in parallel with the capillary vacuum driven pump 1, so that the phase change medium flows in a dispersed manner, improving the heat exchange efficiency. In addition, it is convenient to check the pipeline, reduce the maintenance pressure, and reduce the maintenance cost. A valve body is arranged between the manifold and the capillary vacuum driven pump 1, and the valve body is used to control the flow rate of the phase change medium.

[0052] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. An independent heat storage and heating device, characterized in that: It includes a power generation module (4) and a phase change medium circulation channel; The phase change medium circulation channel is provided with a heat storage and heating module (2), a terminal heating device (3) and a capillary vacuum drive pump (1); The heat storage and heating module (2) is provided with a heat storage element (21) for heating the phase change medium passing through the heat storage and heating module (2); the power generation module (4) generates electric energy and stores it in the heat storage element (21); the heat storage element (21) comprises a plurality of groups, and the plurality of groups of heat storage elements (21) are sequentially stacked from top to bottom; The capillary vacuum drive pump (1) is used to provide a driving force for the phase change medium to flow in the phase change medium circulation channel; The terminal heat supply device (3) releases the heat of the phase change medium inside it to the outside; The heat storage and heating module (2) comprises a collection pipeline connected to the terminal heat supply device (3) and the capillary vacuum driven pump (1), the collection pipeline comprising a collection pipe connected to the terminal heat supply device (3) and the capillary vacuum driven pump (1), a heat exchange plate (26) disposed between two adjacent layers of the heat storage element (21) and having a flow channel (261) therein, and a vertical pipe (24) connected between the heat exchange plate (26) and the collection pipe and located outside the heat storage element (21), the flow channel (261) in the heat exchange plate (26), the vertical pipe (24) and the collection pipe being connected; The inner wall of the heat exchange plate (26) is provided with a plurality of heat exchange ribs (262) extending into the flow channel (261); a plurality of flow channels (261) are provided in the heat exchange plate (26); a plurality of vertical tubes (24) are connected between the heat exchange plate (26) and the collecting pipe; each vertical tube (24) is in communication with a flow channel (261) in the heat exchange plate (26); The manifold comprises a lower manifold (23) and an upper manifold (25), the lower manifold (23) is in communication with the capillary vacuum driven pump (1), the upper manifold (25) is in communication with the terminal heating device (3), the vertical pipe (24) is in communication with the lower manifold (23) and the upper manifold (25), and the vertical pipe (24) is in communication with the flow channel (261); The inner diameter of the upper portion of the vertical pipe (24) is smaller than the inner diameter of the bottom portion of the vertical pipe (24).

2. The independent heat storage and heating device according to claim 1, characterized in that: The power generation module (4) is a photovoltaic power generation module or a wind power generation module.

3. The independent heat storage and heating device according to claim 1, characterized in that: The heat storage and heating module (2) further comprises an electric heating element (22) which is arranged inside the heat storage element (21) and is used to provide heat energy to the heat storage element (21); the electric heating element (22) is electrically connected to the circuit loop of the power generation module (4).

4. The independent heat storage and heating device according to claim 3, characterized in that: Each group of the heat storage elements (21) is provided with an electric heating element (22), and the power supply circuits of the multiple groups of the electric heating elements (22) are arranged in parallel, and each power supply circuit is provided with a switch for controlling the on and off of the power supply circuit.

5. The independent heat storage and heating device according to claim 1, characterized in that: The collecting pipeline is located at the periphery of the heat storage element (21) and is used to absorb the heat of the heat storage element (21) so as to heat the phase change medium flowing therein.

6. The independent heat storage and heating device according to claim 1, characterized in that: The collecting pipes are provided in a plurality of groups, the capillary vacuum driving pumps (1) are provided in a plurality of groups, and the collecting pipes and the capillary vacuum driving pumps (1) are arranged in parallel.

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