A spherical storage tank

Abstract

The utility model relates to a kind of spherical storage tanks, including spherical tank body and steam heat exchange coil, steam heat exchange coil is spirally arranged in the inner wall of spherical tank body, the upper half of spherical tank body is equipped with inlet, inlet is communicated with the steam inlet of steam heat exchange coil, the outlet of steam heat exchange coil is arranged in the lower half of spherical tank body.The utility model directly welds steam heat exchange coil in the inner wall of spherical tank body, and spirally arranges along the inner wall, simplifies spherical tank design, can greatly reduce the complexity and weight of tank internals, reduce manufacturing cost.The utility model uses the way of partition wall heat exchange, steam exchanges heat with the cold water inside spherical tank in heat exchange coil, condenses water by cooling, finally mixes with water inside spherical tank, heat exchange process is gentle, avoids violent steam-water mixing process, and spherical tank operation is relatively stable.

Description

Technical Field

[0001] This utility model relates to the field of spherical tank heat storage technology, and in particular to a spherical storage tank. Background Technology

[0002] Compared to cylindrical storage tanks, spherical storage tanks have advantages such as smaller footprint, lower investment cost, and larger heat storage capacity. Considering the internal stress conditions, thermal expansion and contraction factors of spherical storage tanks, the internal structure and layout of cylindrical storage tanks cannot be applied to spherical heat accumulators. Therefore, a unique internal component design for spherical storage tanks is required.

[0003] Patent CN 114518048A describes a spherical tank heat accumulator in which multiple layers of annular tubes are arranged sequentially from top to bottom within the spherical tank. Each layer of annular tubes consists of multiple concentric circular tubes, and multiple steam nozzles are installed on the annular tubes. The annular tubes are fixed by columns and multiple support platforms arranged sequentially from top to bottom along the axial direction of the columns. This spherical tank has complex internal components and uses direct heat exchange through steam-water mixing, a violent process that easily causes vibration in the spherical tank.

[0004] Therefore, designing a spherical tank with simple internal components and a smooth heat exchange process would facilitate the large-scale commercial application of spherical tanks. Utility Model Content

[0005] To address the problems of complex internal components in existing spherical tanks, the violent heat exchange process caused by direct mixing of steam and water, which easily leads to tank vibration, a new spherical storage tank is proposed. This new tank simplifies the design of internal components and avoids the violent heat exchange process inside the tank.

[0006] The technical solution of this utility model is as follows: a spherical storage tank, including a spherical tank body and a steam heat exchange coil, the steam heat exchange coil being coiled around the inner wall of the spherical tank body, the upper half of the spherical tank body being provided with a steam inlet, the steam inlet being connected to the steam inlet of the steam heat exchange coil, and the outlet of the steam heat exchange coil being provided in the lower half of the spherical tank body.

[0007] Preferably, the top of the spherical tank body is provided with a steam vent and a steam-water separator, and the steam-water separator is connected to the steam vent.

[0008] Preferably, the lower half of the spherical tank body is provided with a water inlet and a water outlet.

[0009] Preferably, the steam heat exchange coil is a plain tube, a finned tube, or a threaded tube.

[0010] Preferably, the steam heat exchange coil is a round tube or a semi-circular tube.

[0011] Preferably, the spherical tank body is equipped with multiple level gauges.

[0012] Preferably, the pressure of the spherical tank body is ≤3.5 MPa, and the volume is ≤3500 m³. 3.

[0013] The beneficial effects of this invention are as follows: This invention directly welds the steam heat exchange coil to the inner wall of the spherical tank body and arranges it in a spiral pattern along the inner wall, simplifying the spherical tank design and significantly reducing the complexity and weight of internal components, thus lowering manufacturing costs. This invention employs a partitioned heat exchange method, where steam exchanges heat with the cold water inside the spherical tank within the heat exchange coil, cools and condenses into water, and finally mixes with the water inside the spherical tank. The heat exchange process is gradual, avoiding a violent steam-water mixing process, resulting in more stable operation of the spherical tank. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the spherical storage tank structure of this utility model.

[0015] The component names corresponding to the various reference numerals in the diagram are as follows:

[0016] 1. Spherical tank body; 2. Steam inlet; 3. Steam heat exchange coil; 4. Steam-water separator; 5. Steam outlet; 6. Water inlet; 7. Drain outlet. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0018] refer to Figure 1 As shown in the illustration, this application discloses a spherical storage tank, including a spherical tank body 1 and a steam heat exchange coil 3. In this embodiment, the maximum working pressure of the spherical tank is 3 MPa, and the volume is 2000 m³. 3 ;

[0019] The material of the spherical tank body 1 is carbon steel, stainless steel or alloy steel. In this example, the material of the spherical tank body 1 is alloy steel.

[0020] The steam heat exchange coil 3 is evenly coiled around the inner wall of the spherical tank body 1. In this example, there are two steam heat exchange coils 3 with a diameter of φ100mm.

[0021] The material of the steam heat exchanger coil 3 is carbon steel, stainless steel or alloy steel. In this example, the material of the steam heat exchanger coil is carbon steel.

[0022] The steam heat exchange coil 3 can be a plain tube, a finned tube, or a threaded tube; the steam heat exchange coil 3 can be a round tube or a semi-circular tube. In this example, the steam heat exchange coil 3 is a semi-circular finned tube to enhance steam heat exchange.

[0023] The steam heat exchange coil 3 is welded to the spherical tank body 1;

[0024] The upper half of the spherical tank body 1 is provided with two steam inlets 2, which are connected to the steam inlet of the steam heat exchange coil 3. The outlet of the steam heat exchange coil 3 is located in the lower half of the spherical tank body 1.

[0025] The top of the spherical tank body 1 is provided with a steam vent 5 and a steam-water separator 4. The steam-water separator 4 is connected to the steam vent 5 to ensure the dryness of the outlet steam.

[0026] The lower half of the spherical tank body 1 is provided with a water inlet 6 and a drain outlet 7. The water inlet 6 is used to replenish the water in the tank during the operation switching process to maintain the dynamic balance of the liquid level in the tank; the drain outlet 7 is used to drain the water in the tank when the machine is stopped.

[0027] The spherical tank body 1 is equipped with 3 level gauges to ensure the safety of operation under various working conditions.

[0028] The beneficial effects are:

[0029] This invention directly welds the steam heat exchange coil 3 to the inner wall of the spherical tank body 1 and arranges it in a spiral pattern along the inner wall, simplifying the spherical tank design and significantly reducing the complexity and weight of the internal components, thus lowering manufacturing costs. This invention adopts a partitioned heat exchange method, where steam exchanges heat with the cold water inside the spherical tank within the heat exchange coil, cools down and condenses into water, and finally mixes with the water inside the spherical tank. The heat exchange process is gradual, avoiding a violent steam-water mixing process, and the spherical tank operates more smoothly.

[0030] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A spherical storage tank, characterized in that, The system includes a spherical tank body (1) and a steam heat exchange coil (3). The steam heat exchange coil (3) is coiled around the inner wall of the spherical tank body (1). The upper part of the spherical tank body (1) is provided with a steam inlet (2), which is connected to the steam inlet of the steam heat exchange coil (3). The outlet of the steam heat exchange coil (3) is located in the lower part of the spherical tank body (1).

2. The spherical storage tank according to claim 1, characterized in that, The top of the spherical tank body (1) is provided with a steam vent (5) and a steam-water separator (4), and the steam-water separator (4) is connected to the steam vent (5).

3. The spherical storage tank according to claim 1, characterized in that, The lower half of the spherical tank body (1) is provided with a water inlet (6) and a water outlet (7).

4. The spherical storage tank according to claim 1, characterized in that, The steam heat exchange coil (3) is a plain tube, a finned tube, or a threaded tube.

5. The spherical storage tank according to claim 1, characterized in that, The steam heat exchange coil (3) is a round tube or a semi-circular tube.

6. The spherical storage tank according to claim 1, characterized in that, The spherical tank body (1) is equipped with multiple level gauges.

7. The spherical storage tank according to claim 1, characterized in that, The pressure of the spherical tank body (1) is ≤3.5 MPa, and the volume is ≤3500 m³. 3 .

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