Hollow heat storage ball assembly

Abstract

The utility model discloses a hollow heat storage ball assembly which comprises a first heat storage ball body, a second heat storage ball body and a heat conduction pipe, a through hole is formed in the first heat storage ball body, the heat conduction pipe is arranged in the through hole, the second heat storage ball body is arranged in the heat conduction pipe in a rolling mode, and limiting rings are arranged at the two ends of the heat conduction pipe respectively. The diameter of an inner hole of the limiting ring is smaller than that of the second heat storage ball body, and an annular groove is formed in the surface of the second heat storage ball body in an inwards-concave mode. According to the hollow heat storage ball assembly, heat storage is conducted synchronously through the first heat storage ball body and the second heat storage ball body, heat can be transmitted to the inner wall of the through hole when smoke flows through the heat conduction pipe, direct heat storage in the first heat storage ball body is achieved, and the heat storage efficiency is improved; and the second heat storage ball body can roll in the heat conduction pipe under the action of gravity and flue gas, dust on the inner wall of the heat conduction pipe is automatically cleaned, and the maintenance difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of heat storage balls, in particular to a hollow heat storage ball assembly. Background Art

[0002] The heat storage balls are mostly made of fire-resistant and corrosion-resistant materials, and are required to have a small thermal expansion coefficient, large heat storage and release capacity, and be able to adapt to the frequent and rapid reversing requirements of the fluid.

[0003] The heat storage ball is usually a solid structure. When the flue gas flows through the surface, it stores heat, but cannot directly reach the inside of the heat storage ball, resulting in low heat storage efficiency. In order to improve the heat storage efficiency, a through hole can be opened in the heat storage ball, and part of the flue gas passes through the through hole to achieve heat storage inside the heat storage ball. Since the flue gas contains dust, it is easy to cover the inner wall of the through hole, which affects the heat exchange between the flue gas and the inner wall of the through hole. In addition, the inner diameter of the through hole is small, which increases the difficulty of maintenance and needs to be improved. Utility Model Content

[0004] The utility model aims to provide a hollow heat storage ball assembly to improve heat storage efficiency and reduce maintenance difficulty.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A hollow heat storage ball assembly comprises: a first heat storage ball, a second heat storage ball and a heat conduction pipe, wherein the first heat storage ball is provided with a through hole, the heat conduction pipe is arranged in the through hole, the second heat storage ball is rollably arranged in the heat conduction pipe, both ends of the heat conduction pipe are respectively provided with limiting rings, the inner hole diameter of the limiting ring is smaller than the diameter of the second heat storage ball, and the surface of the second heat storage ball is concavely provided with a ring groove.

[0007] Wherein, the first heat storage sphere and the second heat storage sphere are ceramic heat storage spheres.

[0008] Wherein, the first heat storage sphere and the second heat storage sphere are made of stainless steel heat storage spheres.

[0009] Wherein, fins extending into the first heat storage sphere are arranged on the outer circle of the heat conducting pipe.

[0010] Wherein, the heat conduction pipe is a stainless steel pipe.

[0011] Wherein, the limiting rings are welded and fixed on both ends of the heat conducting pipe.

[0012] Wherein, the annular grooves are cross-distributed on the surface of the second heat storage sphere.

[0013] The beneficial effects of the utility model are as follows: a hollow heat storage ball assembly stores heat synchronously through a first heat storage ball and a second heat storage ball, and when flue gas flows through the heat conduction pipe, heat can be transferred to the inner wall of the through hole, thereby realizing direct heat storage inside the first heat storage ball and improving heat storage efficiency. In addition, the second heat storage ball can roll in the heat conduction pipe under the action of gravity and flue gas, automatically cleaning dust on the inner wall of the heat conduction pipe, ensuring the contact and heat conduction efficiency of the heat conduction pipe and the flue gas, and reducing the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 yes Figure 1 Top view of the . DETAILED DESCRIPTION

[0016] Combine the following Figure 1 to Figure 2 The technical solution of the utility model is further illustrated by specific embodiments.

[0017] like Figure 1 The hollow heat storage ball assembly shown includes: a first heat storage ball 1, a second heat storage ball 4 and a heat conduction tube 2. The first heat storage ball 1 is provided with a through hole 5, and the number of the through hole 5 is at least 1. The heat conduction tube 2 is arranged in the through hole 5, which is beneficial to the rapid heat storage inside the first heat storage ball 1.

[0018] like Figure 2 As shown, the second heat storage sphere 4 is rotatably arranged in the heat conduction tube 2, and heat can be stored synchronously through the first heat storage sphere 1 and the second heat storage sphere 4, and the flue gas can transfer heat to the inner wall of the through hole 5 when flowing through the heat conduction tube 2, thereby realizing direct heat storage inside the first heat storage sphere 1 and improving the heat storage efficiency.

[0019] Limiting rings 3 are respectively provided at both ends of the heat conducting tube 2, and the diameter of the inner hole 6 of the limiting ring 3 is smaller than the diameter of the second heat storage sphere 4, so as to prevent the second heat storage sphere 4 from falling off from the heat conducting tube 2. In this embodiment, the heat conducting tube 2 is made of stainless steel tube, which has good heat conduction effect and corrosion resistance. The limiting rings 3 are welded and fixed at both ends of the heat conducting tube 2, and the structure is stable.

[0020] The materials of the first heat storage sphere 1 and the second heat storage sphere 4 can be selected from the following two options:

[0021] The first type: the first heat storage ball 1 and the second heat storage ball 4 are made of ceramic heat storage balls, which have good fire resistance;

[0022] In this embodiment, the outer circumference of the heat-conducting tube 2 is provided with fins 7 extending into the first heat-storage sphere 1, so as to enhance the bonding strength between the heat-conducting tube 2 and the first heat-storage sphere 1 and prevent the heat-conducting tube 2 from being separated from the first heat-storage sphere 1;

[0023] The second type: the first heat storage sphere 1 and the second heat storage sphere 4 are made of stainless steel heat storage balls, which have high strength and good shock resistance.

[0024] An annular groove 8 is concavely arranged on the surface of the second heat storage sphere 4. In the present embodiment, the annular grooves 8 are cross-distributed on the surface of the second heat storage sphere 4, which can not only increase the contact area between the flue gas and the surface of the second heat storage sphere 4, but also avoid the problem of the second heat storage sphere 4 blocking the through hole 5, which is beneficial to increase the diameter of the second heat storage sphere 4.

[0025] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A hollow heat storage ball assembly, characterized in that: include: A first heat storage sphere, a second heat storage sphere and a heat conducting tube, wherein the first heat storage sphere is provided with a through hole, the heat conducting tube is provided in the through hole, the second heat storage sphere is rotatably provided in the heat conducting tube, limiting rings are provided at both ends of the heat conducting tube, the inner hole diameter of the limiting rings is smaller than the diameter of the second heat storage sphere, and a ring groove is provided inwardly on the surface of the second heat storage sphere.

2. The hollow heat storage ball assembly according to claim 1, characterized in that: The first heat storage sphere and the second heat storage sphere are ceramic heat storage spheres.

3. The hollow heat storage ball assembly according to claim 1, characterized in that: The first heat storage sphere and the second heat storage sphere are made of stainless steel heat storage spheres.

4. The hollow heat storage ball assembly according to claim 2, characterized in that: The outer circle of the heat conducting pipe is provided with fins extending into the first heat storage sphere.

5. The hollow heat storage ball assembly according to claim 1, characterized in that: The heat conduction pipe is made of stainless steel pipe.

6. The hollow heat storage ball assembly according to claim 5, characterized in that: The limiting rings are welded and fixed at both ends of the heat conducting pipe.

7. The hollow heat storage ball assembly according to claim 1, characterized in that: The annular grooves are cross-distributed on the surface of the second heat storage sphere.

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