Heat storage device capable of preventing media from hedging and flowing back

Abstract

The invention relates to the technical field of heat storage, and particularly discloses a heat storage device capable of preventing media from hedging and backflow. An inlet (20) is formed in one end of the heat preservation shell (10), and an outlet (30) is formed in the other end of the heat preservation shell (10). A heat storage wall is arranged in the heat preservation shell (10). The heat storage wall is formed by splicing and overlapping a plurality of heat storage bricks (40) for preventing media from hedging and flowing back; the heat storage brick capable of preventing the media from hedging and flowing back is adopted, and specifically, a plurality of Tesla valves are arranged on a brick body of the heat storage brick to serve as channels of the heat media; during heat storage, a heat medium enters the heat preservation shell from the inlet, then flows into the heat preservation shell from the left side opening of the Tesla valve and transfers heat to the brick body, and when heat storage and heat dissipation of the brick body are completed, the heat in the brick body flows out from the right side opening of the Tesla valve and then is dissipated from the outlet, and heat dissipation of the brick body is completed. According to the one-way fluid flow guide effect of the Tesla valve, the cold medium from the outlet can be effectively prevented from entering through the right side opening of the Tesla valve and hedging with the hot medium.

Description

Technical Field

[0001] The present invention relates to the field of heat storage technology, and in particular to a heat storage device capable of preventing medium counter-flow and backflow. Background Art

[0002] A large amount of heat generated in industrial production cannot be utilized due to the temporal and spatial mismatch between supply and demand, and is directly discharged into the air, resulting in a waste of resources. The use of heat storage equipment is an effective way to solve this problem and improve the utilization rate of thermal energy.

[0003] A search revealed publication number CN114136131A, which discloses a heat storage device using curved bricks as solid materials. The device comprises: a hollow, insulated shell with a first port and a second port on either side; a heat storage wall disposed within the shell, comprising multiple rows of heat storage assemblies arranged from top to bottom; each row of heat storage assemblies comprises multiple wavy heat storage units arranged in parallel and spaced apart; each heat storage unit is formed by connecting multiple curved heat storage bricks; a heat exchange medium flow channel is formed between adjacent heat storage units in the same row; adjacent curved heat storage bricks form joints, with the joints between adjacent rows of heat storage assemblies not aligning on the same vertical line; the heat storage wall receives heat exchange medium transmitted from the first port or the second port to store or release heat. The wavy heat exchange medium flow channel formed by the series connection of curved heat storage bricks increases the contact area with the heat exchange medium and enhances the heat exchange effect.

[0004] Although the above patent increases the heating time of the heat storage bricks through the wavy heat exchange medium circulation channel structure, the hot medium transmitted from the first port or the second port will encounter the cold medium transmitted from the second port or the first port, resulting in a counter-attack phenomenon, which reduces the temperature of the hot medium and causes the hot medium to reflux, thereby reducing the heat exchange effect. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a heat storage device that prevents medium counter-flow and backflow. The heat storage device that prevents medium counter-flow and backflow adopts a Tesla valve as a heat medium channel, which can not only allow the brick body to store heat from the inside of the brick body, but also the Tesla valve has a one-way flow performance, which can effectively solve the problem of heat medium counter-flow.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A heat storage device that prevents medium counter-flow and backflow, comprising: an insulation shell; an inlet is provided at one end of the insulation shell, and an outlet is provided at the other end; a heat storage wall is provided inside the insulation shell; the heat storage wall is formed by splicing and stacking a plurality of heat storage bricks that prevent medium counter-flow and backflow; and a heat medium channel is provided inside the heat storage bricks.

[0007] Preferably, the heat storage brick includes a brick body; a socket is provided on the left side of the brick body and a plug is provided on the right side; a plurality of Tesla valves are provided inside the brick body; the two adjacent left and right heat storage bricks that prevent medium counter-backflow are spliced ​​by inserting the plug into the socket.

[0008] Preferably, the brick body is made of steel slag.

[0009] Compared with the prior art, this application has the following beneficial effects: 1. The present invention adopts a heat storage brick with anti-medium counter-flow and backflow. Specifically, a plurality of Tesla valves are provided on the brick body of the heat storage brick as a channel for the heat medium. When storing heat, the heat medium enters the interior of the insulation shell from the inlet, and then flows in from the left side of the Tesla valve, and transfers the heat to the brick body to complete the heat storage of the brick body. When dissipating heat, the heat in the brick body flows out through the right side of the Tesla valve and then dissipates from the outlet to complete the heat dissipation of the brick body. According to the one-way fluid diversion function of the Tesla valve, the cold medium discharged from the outlet can be effectively prevented from entering through the right side of the Tesla valve and counteracting the hot medium, thereby preventing the hot medium from backflowing, thereby improving the heat exchange effect of the heat storage brick.

[0010] 2. The present invention sets the Tesla valve as a heat medium channel inside the brick body. During reheating, the brick body can be heated from the inside to the surrounding areas at the same time, thereby improving the heat exchange efficiency of the brick body. In addition, the Tesla valve is composed of a straight pipe and multiple curved pipes. Compared with a straight channel, it also increases the heating area and heating time, further improving the heat exchange effect of the heat storage brick. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0012] Figure 1 This is a schematic cross-sectional view of a heat storage device for preventing medium counter-flow and backflow according to the present invention; Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the central heat storage brick. DETAILED DESCRIPTION

[0013] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings. The components of the embodiments of the present invention generally described and illustrated in the accompanying drawings can be arranged and designed in a variety of different configurations. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0014] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0015] Unless otherwise defined, technical or scientific terms used in this patent document shall have the ordinary meanings understood by persons of ordinary skill in the art to which this invention belongs. The terms "first," "second," and similar expressions used in the specification and claims of this invention do not denote any order, quantity, or importance, but are merely used to distinguish one component from another. Similarly, terms such as "a," "an," or "the" do not denote a limitation of quantity, but rather denote the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects preceding the phrase "include" or "comprising" include the elements or objects listed after the phrase and their equivalents, and do not exclude other elements or objects. Terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are used solely to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. These terms are used solely to facilitate the description of the invention and to simplify the description. They are not intended to indicate or imply that the device or component referred to must have, be constructed, or operate in a specific orientation, and are not to be construed as limitations on the invention.

[0016] The following describes some embodiments of the present invention in detail with reference to the accompanying drawings. In the absence of conflict, the features of the following embodiments can be combined with each other.

[0017] Example 1: like Figure 1 As shown, a heat storage device that prevents medium counter-flow and backflow includes: an insulation shell 10; an inlet 20 is provided at one end of the insulation shell 10, and an outlet 30 is provided at the other end; a heat storage wall is provided inside the insulation shell 10; the heat storage wall is formed by splicing and stacking multiple heat storage bricks 40 that prevent medium counter-flow and backflow; a heat medium channel is provided inside the heat storage brick 40.

[0018] When storing heat, the heat storage device that prevents medium counter-flow backflow allows the heat medium to enter the insulation shell 10 through the inlet 20 and exchanges heat with the heat storage wall arranged in the insulation shell 10. When releasing heat, the heat of the heat storage wall is dissipated through the outlet 30 on the insulation shell 10.

[0019] In order to prevent the cold medium at the outlet 30 from colliding with the hot medium at the inlet 20, the heat storage wall is spliced ​​and stacked by multiple heat storage bricks 40 that prevent medium counter-flow and backflow. The heat storage bricks 40 have the effect of preventing medium counter-flow and backflow, which can effectively prevent the hot medium from flowing into the channel from the inlet 20 and colliding with the cold medium flowing into the channel from the outlet 30, thereby causing counter-flow and backflow.

[0020] like Figure 2 As shown, the heat storage brick 40 includes a brick body 41; a socket 42 is provided on the left side of the brick body 41, and a plug 43 is provided on the right side; a plurality of Tesla valves 44 are provided inside the brick body 41; the two adjacent left and right heat storage bricks 40 that prevent medium counter-flow and backflow are spliced ​​by inserting the plug 43 into the socket 42; the brick body 41 is made of steel slag.

[0021] In order to achieve the effect of preventing medium counter-flow and backflow in the heat storage brick 40, multiple Tesla valves 44 with one-way fluid diversion function are set inside the brick body 41 as heat medium channels. According to the characteristics of the Tesla valve 44, the hot medium can enter from the left side of the Tesla valve 44 and exit from the right side, but the cold medium at the outlet 30 cannot enter from the right side of the Tesla valve 44. In this way, the encounter between the hot medium and the cold medium can be effectively avoided, thereby causing the counter-flow of hot and cold media, thereby improving the heat exchange effect of the heat storage brick 40.

[0022] Among them, the Tesla valve 44 is composed of a straight pipe and multiple arc-shaped pipes, which can effectively increase the contact area with the brick body 41, further improving the heat exchange effect. At the same time, the Tesla valve 44 is arranged inside the brick body 41. Compared with the channels arranged on both sides of the brick body 41, the heat exchange spreads from the inside of the brick body 41 to the surrounding areas of the brick body 41 at the same time, and the heat exchange speed is faster.

[0023] The brick body 41 is made of steel slag, which has good thermal conductivity and can better store heat.

[0024] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from all perspectives, the embodiments should be regarded as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be included within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A heat storage device that prevents medium counter-flow and backflow, characterized in that: include: An insulation shell (10); an inlet (20) is provided at one end of the insulation shell (10), and an outlet (30) is provided at the other end; a heat storage wall is provided inside the insulation shell (10); the heat storage wall is formed by splicing and stacking a plurality of heat storage bricks (40) that prevent medium counterflow and backflow; a heat medium channel is provided inside the heat storage bricks (40).

2. A heat storage device for preventing medium counter-flow and backflow according to claim 1, characterized in that: The heat storage brick (40) comprises a brick body (41); a socket (42) is provided on the left side of the brick body (41), and a plug (43) is provided on the right side; a plurality of Tesla valves (44) are provided inside the brick body (41); and two adjacent left and right heat storage bricks (40) that prevent medium counterflow and backflow are spliced ​​by inserting the plug (43) into the socket (42).

3. A heat storage device for preventing medium counter-flow and backflow according to claim 2, characterized in that: The brick body (41) is made of steel slag.

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