Steam heat accumulator with spiral steam distribution structure

Abstract

The utility model discloses a steam heat accumulator with a spiral steam distributing structure, which comprises a heat accumulator shell which forms a pressure container for absorbing or releasing heat energy; the steam uniform distribution pipeline is arranged to keep a certain distance from the heat accumulator shell and is spirally wound, one end of the steam uniform distribution pipeline is connected with the steam inlet, and the other end of the steam uniform distribution pipeline is a blind end; and a plurality of steam outlet holes are uniformly distributed on the outer wall of the steam uniform distribution pipeline. According to the heat accumulator, the spiral pipe is arranged, the diameter of the lower portion of the spiral pipe is small, and when the spiral pipe is coiled upwards, the diameter of the spiral pipe is gradually enlarged, heat of steam is effectively and evenly conveyed to multiple height positions of the heat accumulator, and the effect that the steam is evenly input inside and outside is achieved; therefore, the defect that the pressure in the tank body is not uniformly distributed due to non-uniform steam input is effectively avoided, and the high-pressure steam can be uniformly distributed in each layer in the tank body from inside to outside and from high to low, so that the pressure impact of the steam can be uniformly dispersed in the tank body when the steam is input into the tank body.

Description

Technical Field

[0001] The utility model relates to the technical field of heat storage equipment, in particular to a steam heat accumulator with a spiral steam separation structure. Background Art

[0002] A steam accumulator is a device used to store and manage thermal energy, primarily by storing steam to provide thermal energy when needed. This technology has broad potential for use in industrial, commercial, and renewable energy applications. The basic principle of a steam accumulator is to use the phase change process (evaporation and condensation) of steam to store and release thermal energy. When there is excess thermal energy, water is heated to steam and stored in an accumulator containing a certain amount of stored water, so that the stored water becomes high-pressure hot water; when thermal energy is needed, the high-pressure hot water stored in the accumulator outputs steam through flash evaporation.

[0003] The advantage is that steam has a high energy density, which means that a steam accumulator can store a large amount of heat energy in a relatively small volume. Steam accumulators can quickly respond to changes in heat demand and provide instant heat supply, which is suitable for applications that require rapid adjustment. Pressure regulation can maintain steam storage and release at a relatively constant temperature, ensuring the stability of heat output.

[0004] In industrial production processes, steam is widely used in heating, cooking, sterilization and other processes. Steam accumulators can balance the heating load and optimize energy utilization. In commercial facilities, steam accumulators can be used to provide heat sources in heating, hot water and air conditioning systems to improve energy efficiency. In renewable energy systems such as solar thermal power generation and biomass energy, steam accumulators can store heat energy from intermittent energy supplies to improve system stability and reliability.

[0005] However, in the current technology, steam accumulators have some problems to be solved.

[0006] The heat exchange of steam requires an efficient heat exchange design to ensure that the steam accumulator can quickly absorb and release heat energy and improve the system response speed. During use, if the steam enters the accumulator equipment and cannot exchange heat evenly and efficiently, it is easy to cause uneven distribution of gas pressure in the equipment, which can easily lead to large pressure fluctuations in the equipment; therefore, in order to accurately control the pressure of the accumulator, it is necessary to accurately control the pressure of the accumulator during storage and release, with less operational redundancy and more frequent pressure charging and depressurization by operators to keep the pressure of the accumulator stable to ensure the safety and efficiency of the system, so there are high requirements for the pressure balance in steam storage.

[0007] Therefore, one of the optimization directions for steam accumulators is to design and develop more efficient heat exchangers to improve the energy conversion efficiency and reduce pressure fluctuations during steam storage and release.

[0008] In view of the above, it is necessary to propose a steam accumulator with a spiral steam separation structure to solve the above problems. Utility Model Content

[0009] The purpose of the utility model is to overcome the defects in the prior art and provide a steam accumulator with a spiral steam separation structure.

[0010] To achieve the above-mentioned object, the technical solution of the utility model is as follows: A steam accumulator with a spiral steam separation structure comprises an accumulator shell, which forms a pressure vessel for absorbing or releasing thermal energy;

[0011] A steam distribution pipeline is arranged to maintain a certain distance from the heat accumulator shell and is spirally coiled, one end of the steam distribution pipeline is connected to the steam inlet, and the other end is a blind end;

[0012] A plurality of steam outlet holes are evenly distributed on the outer wall of the steam uniform distribution pipe.

[0013] Furthermore, the steam distribution pipeline is arranged in a spiral shape, and is formed to coil upward and gradually expand in diameter.

[0014] Furthermore, the bottom of the steam distribution pipe is the smallest circle, the top is the largest circle, and the diameter ratio of the largest circle to the smallest circle is 9:1-11:1.

[0015] Furthermore, the ratio of the coiling height of the steam uniform distribution pipe to the diameter of the largest circle is 1:1.5~1:2.5.

[0016] Furthermore, six steam outlet holes are evenly distributed in the circumferential direction in the cross section of the tube wall, and the angle formed between two adjacent holes and the line connecting the hole centers is 50-70°.

[0017] Furthermore, the diameter of the steam outlet hole is 40-60 mm.

[0018] Furthermore, in the length direction of the steam uniform distribution pipe, the hole spacing between two adjacent steam outlet holes is 150-200 mm.

[0019] Furthermore, it also includes an inner wall bracket, which is arranged between the steam distribution pipe and the inner wall of the heat accumulator shell to control and maintain the distance between the steam distribution pipe and the inner wall of the heat accumulator shell. There are several inner wall brackets, which are evenly spaced on the steam distribution pipe.

[0020] The advantages and beneficial effects of the utility model are as follows: the utility model is a steam accumulator with a spiral steam separation structure, which is provided with a spiral tubular setting with a small diameter at the bottom and a gradually expanding diameter when it is coiled upward, which effectively and evenly transports the heat of the steam to multiple height positions of the accumulator, and also forms an effect of uniformly inputting steam inside and outside, thereby effectively avoiding the disadvantage of uneven pressure distribution in the tank body due to uneven steam input, and the high-pressure steam can be evenly distributed in each layer of the tank body from the inside to the outside and from high to low, so that the pressure shock of the steam when the steam is input into the tank body can be evenly dispersed in the tank body, thereby effectively reducing the pressure fluctuation of the tank body and making the equipment run safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a steam heat accumulator with a spiral steam separation structure of the utility model;

[0022] Figure 2 It is a cross-sectional view of the steam uniform distribution pipeline;

[0023] In the figure: 1. Regenerator shell; 2. Steam distribution pipe; 3. Steam inlet; 4. Blind end; 5. Steam outlet hole; 6. Minimum circle; 7. Maximum circle; 8. Coiling height; 9. Inner wall bracket; 10. Steam inlet pipe; 11. Steam interface; 12. Shell support. DETAILED DESCRIPTION

[0024] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0025] A steam accumulator with a spiral steam separation structure, such as Figure 1 As shown, it includes a heat storage shell 1, which forms a pressure vessel for absorbing or releasing heat energy; in actual use, the structure of the heat storage shell is not limited, and can be a cylindrical pressure vessel or a pressure vessel such as Figure 1 The spherical tank body shown in the present embodiment takes the spherical tank as an example, the shell support 12 is arranged around the bottom of the heat accumulator shell 1, and a steam interface 11 is arranged on the top thereof, and the steam is injected into the heat accumulator through the interface.

[0026] A steam distribution pipe 2 is provided in the heat accumulator shell 1, which is arranged to maintain a certain distance from the heat accumulator shell 1 and is spirally coiled. Specifically, the steam distribution pipe 2 is fixed in the heat accumulator shell 1 using an inner wall bracket 9, and the inner wall bracket 9 is provided between the steam distribution pipe 2 and the inner wall of the heat accumulator shell 1 to control and maintain the distance between the steam distribution pipe 2 and the inner wall of the heat accumulator shell 1. There are several inner wall brackets 9, which are evenly spaced on the steam distribution pipe 2.

[0027] One end of the steam distribution pipe 2 is connected to the steam inlet 3, and the other end is a blind end 4. In this embodiment, a steam inlet pipe 10 is connected downwardly to the steam interface 11, and the lower end of the steam inlet pipe 10 is connected to the steam distribution pipe 2 and to its steam inlet 3, so that steam can enter the steam distribution pipe 2. Furthermore, a plurality of steam outlet holes 5 are evenly distributed on the outer wall of the steam distribution pipe 2. The steam can be ejected through the steam outlet holes 5, and the heat of the steam is stored in the heat accumulator shell 1.

[0028] In order to ensure uniform steam input and reduce heat concentration in a certain place in the heat accumulator, the steam distribution pipeline 2 is increased in length, and the incoming steam pipeline is coiled into a spiral tube and gradually raised upward to form a certain coiling height 8, such as Figure 1 As shown, and in order to prevent the incoming steam from gathering at a certain place in the heat accumulator shell 1 and to avoid concentration, the present embodiment is further improved by setting the steam distribution pipe 2 in a vortex shape, and forming a shape in which the diameter gradually increases from bottom to top; as shown Figure 1 As shown, the steam uniform distribution pipe 2 gradually increases in diameter from small to large and increases in height, so that the steam uniform distribution pipe 2 is distributed on the inner wall of the lower part of the spherical tank body. In addition, a number of steam outlet holes 5 are evenly distributed on the outer wall of the steam uniform distribution pipe 2, thereby improving the performance of the steam heat accumulator, because the holes on the spiral pipe are evenly distributed, increasing the contact between the steam and the gas and liquid in different layers, ensuring uniform heat input, reducing the heat loss caused by the high temperature difference in the area caused by the input of the heat concentrated area, making the steam heat exchange more efficient, and extending the overall heat storage time of the heat storage tank.

[0029] Specifically, the bottom of the steam uniform distribution pipe 2 is the smallest circle 6, and the top is the largest circle 7, and the diameter ratio of the largest circle 7 to the smallest circle 6 is 10:1. The coiling height 8 of the steam uniform distribution pipe 2 and the diameter ratio of the largest circle 7 are 1:2. Further, the steam outlet holes 5 are evenly distributed in the cross section of the pipe wall in the circumferential direction, and the angle between two adjacent holes and the line connecting the hole centers is 60°. Figure 2 The diameter of the steam outlet hole 5 is 40-60 mm. In the length direction of the steam uniform distribution pipe 2, the hole spacing between two adjacent steam outlet holes 5 is 150-200 mm.

[0030] In this embodiment, because the steam outlet holes 5 on the steam distribution pipe 2 are evenly distributed, the high-temperature and high-pressure gas pressure is evenly distributed in each layer, so that the pressure shock to the tank body when steam is input is more evenly dispersed, thereby reducing the need for external pressure control intervention, ensuring that the system is safer and more efficient.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A steam accumulator with a spiral steam separation structure, characterized in that: It comprises a heat accumulator housing (1) which forms a pressure vessel for absorbing or releasing thermal energy; A steam distribution pipe (2) is arranged to maintain a certain distance from the heat accumulator shell (1) and is spirally coiled, one end of the steam distribution pipe (2) is connected to the steam inlet (3), and the other end is a blind end (4); A plurality of steam outlet holes (5) are evenly distributed on the outer wall of the steam distribution pipe (2).

2. The steam accumulator with a spiral steam separation structure according to claim 1, characterized in that: The steam distribution pipe (2) is arranged in a spiral shape, and is formed to coil upward with its diameter gradually increasing.

3. The steam accumulator with a spiral steam separation structure according to claim 2, characterized in that: The bottom of the steam uniform distribution pipe (2) is a minimum circle (6), and the top is a maximum circle (7), and the diameter ratio of the maximum circle (7) to the minimum circle (6) is 9:1-11:

1.

4. The steam accumulator with a spiral steam separation structure according to claim 3, characterized in that: The ratio of the coiling height (8) of the steam uniform distribution pipe (2) to the diameter of the largest coil (7) is 1:1.5 to 1:2.

5.

5. The steam accumulator with a spiral steam separation structure according to claim 4, characterized in that: Six steam outlet holes (5) are evenly distributed in the circumferential direction in the cross section of the tube wall, and the angle formed between two adjacent holes and the line connecting the hole centers is 50-70°.

6. The steam accumulator with a spiral steam separation structure according to claim 1, characterized in that: The diameter of the steam outlet hole (5) is 40-60 mm.

7. The steam accumulator with a spiral steam separation structure according to claim 1, characterized in that: In the length direction of the steam uniform distribution pipe (2), the hole spacing between two adjacent steam outlet holes (5) is 150-200 mm.

8. The steam accumulator with a spiral steam separation structure according to claim 1, characterized in that: It also includes an inner wall bracket (9), which is arranged between the steam distribution pipe (2) and the inner wall of the heat accumulator shell (1) to control and maintain the distance between the steam distribution pipe (2) and the inner wall of the heat accumulator shell (1), and a plurality of the inner wall brackets (9) are provided and are evenly spaced on the steam distribution pipe (2).

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