Multi-layer coiled tube structure of high-temperature gas cooled reactor waste heat coiled tube type heat exchanger

Abstract

The utility model discloses a multi-layer coiled tube structure of a high temperature gas cooled reactor waste heat coiled tube type heat exchanger, which comprises a heat exchange tube body and a plurality of heat exchange tube layers wound outside the heat exchange tube body, the plurality of heat exchange tube layers are sleeved in sequence, the heat exchange tube layers are formed by winding heat exchange tubes around the heat exchange tube body, and the heat exchange tubes are wound around the heat exchange tube body. Comprising a tail vertical end, a spiral main body end and a top vertical end, a first included angle formed between the tail vertical end and the spiral main body end is 90-100 degrees, and a second included angle formed between the spiral main body end and the top vertical end is 90-100 degrees. And the volume of the coiled tube heat exchanger is reduced, so that the processing cost of the coiled tube heat exchanger is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tubular heat exchangers, in particular to a multi-layered coiled tube structure of a high-temperature gas-cooled reactor waste heat coiled tube heat exchanger. Background Art

[0002] When installing the coils of the heat exchanger, the installation method is to use tooling or manual work to solve the problem of mutual interference during the assembly of the multi-layer coils. In addition, the existing heat exchanger has a complex structure due to the increase in the number of layers of heat exchange tubes, which is prone to mutual interference during installation. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a multi-layer coil structure of a high-temperature gas-cooled reactor waste heat coil heat exchanger. The multi-layer heat exchange tubes are arranged in a sleeve-connected manner to avoid installation interference between layers. The operation is simple, the volume of the coil heat exchanger is reduced, and the processing cost of the coil heat exchanger is reduced.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is a multi-layer winding structure of a high-temperature gas-cooled reactor waste heat winding type heat exchanger, including: a heat exchange tube body and a multi-layer heat exchange tube layer wound around the outside of the heat exchange tube body, the multi-layer heat exchange tube layer is arranged in sequence, and the heat exchange tube layer is formed by winding the heat exchange tube around the heat exchange tube body, including a tail vertical end, a spiral main body end and a top vertical end, the first angle formed between the tail vertical end and the spiral main body end is 90 degrees to 100 degrees, and the second angle formed between the spiral main body end and the top vertical end is 90 degrees to 100 degrees.

[0005] In a preferred embodiment of the present invention, a first angle formed between the vertical end of the tail and the end of the spiral body is 95 degrees, and a second angle formed between the end of the spiral body and the vertical end of the top is 95 degrees.

[0006] In a preferred embodiment of the present invention, the diameter of the spiral main body ends of the multiple layers of heat exchange tube layers gradually increases in the direction from the outer circumferential surface of the heat exchange tube body to the axial line of the heat exchange tube body.

[0007] In a preferred embodiment of the present invention, the rotation directions of the ends of the spiral bodies in two adjacent layers of the heat exchange tubes are opposite.

[0008] In a preferred embodiment of the present invention, the number of heat exchange tube layers is 2-3.

[0009] In a preferred embodiment of the present invention, the length of the vertical end of the tail is equal to the length of the vertical end of the top, and is 1 / 8 to 1 / 7 of the length of the spiral main body end.

[0010] The beneficial effects of the utility model are as follows: the multi-layer winding tube structure of the high-temperature gas-cooled reactor waste heat winding tube type heat exchanger of the utility model, the multi-layer heat exchange tube layers are arranged in a sleeve-connected manner, the rotation directions of the spiral main body ends in two adjacent layers of heat exchange tube layers are opposite, and installation interference between layers is avoided. The operation is simple and safe, and the volume of the winding tube type heat exchanger is reduced, thereby reducing the processing cost of the winding tube type heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the vertical end of the tail portion of the utility model. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. 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.

[0015] See also Figure 1-2 The utility model discloses a multi-layer winding tube structure of a high-temperature gas-cooled reactor waste heat winding tube heat exchanger, comprising: a heat exchange tube body 1 and a multi-layer heat exchange tube layer 2 wound outside the heat exchange tube body, the multi-layer heat exchange tube layers are arranged in sequence, and the heat exchange tube layer is formed by winding the heat exchange tube around the heat exchange tube body, including a tail vertical end 21, a spiral main body end 22 and a top vertical end 23, the first angle formed between the tail vertical end and the spiral main body end is 90 degrees to 100 degrees, and the second angle formed between the spiral main body end and the top vertical end is 90 degrees to 100 degrees, and the outer peripheral surface of the heat exchange tube body to the heat exchange tube body is 21 degrees. In the axial direction of the tube body, the diameter of the spiral main body end of the multi-layer heat exchange tube layer is gradually increased, and the rotation direction of the spiral main body end in the two adjacent layers of heat exchange tube layers is opposite. The heat exchange tube layer can be set to 2-3 layers according to needs. A certain gap is reserved between the heat exchange tube layers, which can effectively prevent the adjacent heat exchange tubes in the heat exchange tube layer from contacting and causing wear and leakage during long-term operation, avoid installation interference between layers, and operate simply and safely, reduce the volume of the coiled heat exchanger, thereby reducing the processing cost of the coiled heat exchanger and realizing the miniaturization of the coiled heat exchanger.

[0016] In a specific embodiment of the present invention, a first angle formed between the vertical end of the tail and the end of the spiral body is 95 degrees, and a second angle formed between the end of the spiral body and the vertical end of the top is 95 degrees.

[0017] In a specific embodiment of the present invention, the length of the tail vertical end is equal to the length of the top vertical end, and is 1 / 8 to 1 / 7 of the length of the spiral main body end.

[0018] The beneficial effects of the utility model are as follows: the multiple layers of heat exchange tubes are arranged in a sleeve-connected manner, the rotation directions of the spiral main body ends in two adjacent layers of heat exchange tubes are opposite, thus avoiding installation interference between layers, and the operation is simple and safe, reducing the volume of the coiled-tube heat exchanger, thereby reducing the processing cost of the coiled-tube heat exchanger.

[0019] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-layer coil structure of a high temperature gas-cooled reactor waste heat coil heat exchanger, characterized in that: include: A heat exchange tube body and a plurality of heat exchange tube layers wound outside the heat exchange tube body, wherein the plurality of heat exchange tube layers are sequentially nested and formed by winding a heat exchange tube around the heat exchange tube body, and comprises a tail vertical end, a spiral main body end and a top vertical end, wherein a first angle formed between the tail vertical end and the spiral main body end is 90 to 100 degrees, and a second angle formed between the spiral main body end and the top vertical end is 90 to 100 degrees.

2. The multi-layer coil structure of the high temperature gas-cooled reactor waste heat coil heat exchanger according to claim 1, characterized in that: The first angle formed between the vertical end of the tail and the end of the spiral body is 95 degrees, and the second angle formed between the end of the spiral body and the vertical end of the top is 95 degrees.

3. The multi-layer coil structure of the high temperature gas-cooled reactor waste heat coil heat exchanger according to claim 1, characterized in that: In the direction from the outer circumferential surface of the heat exchange tube body to the axial line of the heat exchange tube body, the diameter of the spiral main body ends of the multiple layers of heat exchange tube layers gradually increases.

4. The multi-layer coil structure of the high temperature gas-cooled reactor waste heat coil heat exchanger according to claim 1, characterized in that: The rotation directions of the ends of the spiral bodies in two adjacent layers of the heat exchange tubes are opposite.

5. The multi-layer coil structure of the high temperature gas-cooled reactor waste heat coil heat exchanger according to claim 1, characterized in that: The heat exchange tube layer is 2-3 layers.

6. The multi-layer coil structure of the high temperature gas-cooled reactor waste heat coil heat exchanger according to claim 1, characterized in that: The length of the vertical end of the tail is equal to the length of the vertical end of the top, and is 1 / 8 to 1 / 7 of the length of the spiral main body end.

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