Steam separation structure of steam generator

Abstract

The embodiment of the utility model provides a steam separation structure of a steam generator, which comprises the steam generator and a steam header, and a steam outlet of the steam generator is communicated with a steam inlet of the steam header; a first steam equalizing baffle and a second steam equalizing baffle are sequentially arranged in the steam distributing cylinder in the steam flowing direction, a plurality of through holes allowing steam to pass through are formed in the first steam equalizing baffle, and a gap allowing the steam to pass through is reserved between the second steam equalizing baffle and the inner wall of the steam distributing cylinder. The wet steam is subjected to secondary separation by utilizing the first steam equalizing baffle and the second steam equalizing baffle, so that stable steam pressure can be obtained, and the steam dryness can be effectively improved.

Description

A steam separation structure for a steam generator Technical Field

[0001] This utility model relates to the field of steam generator technology, and specifically to a steam separation structure for a steam generator. Background Technology

[0002] When the steam generator has a full water volume of less than 30L, due to the limitations of the equipment's structure, the frequency of starting and stopping the water supply pump is much higher than when the steam generator has a full water volume of more than 30L, while ensuring the equipment's output. As a result of the frequent starting and stopping of the water supply pump, the operating water level changes frequently, which not only leads to a larger fluctuation range in the steam pressure output by the steam generator, but also causes a deterioration in the steam dryness. In this case, it is difficult to obtain high-quality steam dryness and stable steam pressure. Summary of the Invention

[0003] In view of this, the present invention provides a steam separation structure for a steam generator to solve the technical problem that it is difficult to obtain high-quality steam dryness and stable steam pressure when the steam generator has a full water volume of less than 30L.

[0004] This utility model provides a steam separation structure for a steam generator, including a steam generator and a steam distribution cylinder. The outlet of the steam generator is connected to the inlet of the steam distribution cylinder. Inside the steam distribution cylinder, a first steam equalization baffle and a second steam equalization baffle are arranged sequentially along the steam flow direction. The first steam equalization baffle has multiple through holes for steam to pass through, and a gap for steam to pass through is left between the second steam equalization baffle and the inner wall of the steam distribution cylinder.

[0005] Optionally, the second steam distribution baffle also has multiple through holes for steam to pass through.

[0006] Optionally, the first steam equalization baffle is disposed opposite to the air inlet of the steam distributor cylinder, and the second steam equalization baffle is disposed opposite to the air outlet of the steam distributor cylinder.

[0007] Optionally, the outlet of the steam distribution cylinder is located at the top or one side of the steam distribution cylinder; the second steam equalization baffle is generally L-shaped, one side plate of the second steam equalization baffle is opposite to the outlet of the steam distribution cylinder, and the other side plate of the second steam equalization baffle is located beside the outlet of the steam distribution cylinder.

[0008] Optionally, the air inlet of the steam distribution cylinder is located at the top of the steam distribution cylinder; the first steam equalization baffle is generally L-shaped, one side plate of the first steam equalization baffle is opposite to the air inlet of the steam distribution cylinder, and the other side plate of the first steam equalization baffle is located between the air inlet and the air outlet of the steam distribution cylinder and extends toward the bottom of the steam distribution cylinder.

[0009] The present invention has the following beneficial effects: a first steam equalization baffle and a second steam equalization baffle are sequentially arranged inside the steam distribution cylinder along the steam flow direction. The first steam equalization baffle and the second steam equalization baffle are used to perform secondary separation of wet steam, which can not only obtain stable steam pressure, but also effectively improve steam dryness. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 is a schematic diagram of one embodiment of the present utility model;

[0012] Figure 2 is a schematic diagram of the second structure of the steam separator in an embodiment of this utility model;

[0013] Figure 3 is a schematic diagram of the third structure of the steam separator in the embodiment of this utility model;

[0014] The numbers in the diagram represent:

[0015] 1. Steam generator; 2. Steam distribution cylinder; 3. First steam equalization baffle; 4. Second steam equalization baffle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "top" and "bottom" generally refer to the top and bottom of the device in its actual use or working state, specifically the direction of the drawing in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0017] Furthermore, 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 technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more features.

[0018] Please refer to Figure 1. An embodiment of this utility model provides a steam separation structure for a steam generator, including a steam generator 1 and a steam distribution cylinder 2. The outlet of the steam generator 1 is connected to the inlet of the steam distribution cylinder 2, so that the wet steam generated by the steam generator 1 can enter the steam distribution cylinder 2 for steam-water separation and buffering and pressure stabilization, and then be transported to downstream equipment through the outlet of the steam distribution cylinder 2.

[0019] Inside the steam distributor 2, along the steam flow direction (from the inlet to the outlet), a first steam equalization baffle 3 and a second steam equalization baffle 4 are sequentially arranged. The first steam equalization baffle 3 has multiple through holes for steam to pass through, and a gap is left between the second steam equalization baffle 4 and the inner wall of the steam distributor 2 for steam to pass through. The first steam equalization baffle 3 can perform preliminary steam-water separation and throttling and pressure stabilization of the wet steam, while the second steam equalization baffle 4 can increase the steam flow path, further improving the separation and pressure stabilization effect, thereby obtaining stable steam pressure and effectively improving steam dryness. To ensure the separation and pressure stabilization effect, the first steam equalization baffle 3 can be directly positioned opposite the inlet of the steam distributor 2, and the second steam equalization baffle 4 can be directly positioned opposite the outlet of the steam distributor 2.

[0020] As an alternative implementation, multiple through holes for steam to pass through can also be made on the second steam equalization baffle 4, using an orifice plate to perform secondary steam separation and pressure stabilization. A certain gap can also be left between the first steam equalization baffle 3 and the inner wall of the steam distributor cylinder 2 to reduce resistance.

[0021] Since the separated condensate needs to be discharged through the drain port at the bottom of the steam separator 2, the air inlet and outlet of the steam separator 2 are usually set at the top or side wall of the steam separator 2. Accordingly, the shape and position of the first steam equalization baffle 3 and the second steam equalization baffle 4 can be specifically set according to the actual steam flow direction.

[0022] As several specific reference examples, as shown in Figures 1-3, the second steam equalization baffle 4 in this embodiment of the present invention is generally L-shaped. One side plate of the second steam equalization baffle 4 is arranged opposite to the outlet of the steam separator 2 to increase the flow path of steam and improve the separation effect. The other side plate of the second steam equalization baffle 4 is located beside the outlet of the steam separator 2 to block the steam so that the separated steam can flow out smoothly from the outlet of the steam separator 2.

[0023] As shown in Figure 1, when the air inlet of the steam separator 2 is located at the top of the steam separator 2, the first steam equalization baffle 3 can be set as an L-shape. One side plate of the first steam equalization baffle 3 is set opposite to the air inlet of the steam separator 2, and the other side plate is located between the air inlet and the air outlet of the steam separator 2 and extends towards the bottom of the steam separator 2, so that the steam can be separated twice by passing through the two side plates of the first steam equalization baffle 3 in sequence.

[0024] As shown in Figures 2 and 3, when the air inlet of the steam separator 2 is located on one side of the steam separator 2, the first steam equalization baffle 3 can be set as a U-shape and directly covered inside the air inlet of the steam separator 2, which can ensure that the incoming wet steam is separated by the first steam equalization baffle 3.

[0025] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this utility model. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A steam separation structure for a steam generator, comprising a steam generator and a steam distribution cylinder, wherein the outlet of the steam generator is connected to the inlet of the steam distribution cylinder, characterized in that: The steam distribution cylinder has a first steam equalization baffle and a second steam equalization baffle arranged sequentially along the steam flow direction. The first steam equalization baffle has multiple through holes for steam to pass through, and the second steam equalization baffle has a gap between itself and the inner wall of the steam distribution cylinder for steam to pass through.

2. The steam separation structure of a steam generator according to claim 1, wherein: The second steam distribution baffle also has multiple through holes for steam to pass through.

3. The steam separation structure of a steam generator according to claim 1, wherein: The first steam equalization baffle is positioned opposite to the air inlet of the steam distributor cylinder, and the second steam equalization baffle is positioned opposite to the air outlet of the steam distributor cylinder.

4. The steam separation structure of a steam generator according to claim 1, characterized in that: The outlet of the steam distribution cylinder is located at the top or one side of the steam distribution cylinder; the second steam equalization baffle is generally L-shaped, one side plate of the second steam equalization baffle is opposite to the outlet of the steam distribution cylinder, and the other side plate of the second steam equalization baffle is located beside the outlet of the steam distribution cylinder.

5. The steam separation structure of a steam generator according to claim 1, characterized in that: The air inlet of the steam distribution cylinder is located at the top of the steam distribution cylinder; the first steam equalization baffle is generally L-shaped, one side plate of the first steam equalization baffle is opposite to the air inlet of the steam distribution cylinder, and the other side plate of the first steam equalization baffle is located between the air inlet and the air outlet of the steam distribution cylinder and extends towards the bottom of the steam distribution cylinder.

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