Spray nozzle partition plate device of steam-water desuperheater

Abstract

The utility model discloses a partition plate device for a nozzle of a steam-water desuperheater, which relates to the technical field of nozzles of desuperheaters and is characterized by comprising a tube seat sleeve, a desuperheating water tube arranged in the tube seat sleeve in a penetrating manner and a spray head arranged at the bottom of the desuperheating water tube, and a cavity gap is arranged between the desuperheating water tube and the inner wall of the tube seat sleeve. A stabilizing assembly located in the cavity gap is arranged on the attemperation water pipe. When the device works, the stabilizing assembly supports and buffers the attemperation water pipe. Due to the arrangement of the stabilizing assembly, the stabilizing assembly can be used for supporting the periphery of the desuperheating water pipe and shortening the length of a cantilever of the desuperheating water pipe when the desuperheating water pipe is installed in the pipe seat sleeve, so that the desuperheating water pipe cannot vibrate during working, and the running stability of a system is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of desuperheater nozzles, in particular to a steam-water desuperheater nozzle partition device. Background Technique

[0002] A steam-water desuperheater is a device used to reduce the temperature of steam. Since overheated steam may damage pipelines, valves, turbine blades, etc., it is necessary to reduce its temperature to a safe range. The steam-water desuperheater sprays water into the overheated steam. After the water contacts the steam, it will quickly evaporate and absorb a large amount of heat, so as to achieve the purpose of reducing the steam temperature. The existing steam-water desuperheater structure includes a desuperheating water pipe and a spray head fixed on the desuperheating water pipe. There is a pipe socket sleeve outside the desuperheating water pipe for welding and fixing with the steam pipeline. After long-term use, the spray head will be damaged. At this time, the spray head needs to be replaced separately. Since the pipe socket sleeve is welded to the steam pipeline, in order to facilitate the removal of the internal spray head, a certain distance needs to be left between the desuperheating water pipe and the pipe socket sleeve, which is convenient for cutting the upper part of the pipe socket sleeve later, and then pulling out the cooling water pipe and the spray head together for replacement. However, this structure causes the desuperheating water pipe and the spray head to be suspended in the pipe socket sleeve. When the desuperheater works, the spray head will be affected by the reaction force of the desuperheating water and the impact of the steam. At the same time, the desuperheating water pipe is a cylindrical structure. When high-speed steam flows through it, a von Kármán vortex will be formed on its back. If the excitation frequency of the von Kármán vortex coincides with the natural frequency of the nozzle, resonance will occur, resulting in cracks or even fractures of the spray head.

[0003] In view of this, a design or technical improvement is proposed to solve the above problems.

[0004] The above content is only used to assist in understanding the technical solution of the utility model, and does not represent an admission that the above content is the closest prior art. Content of the Utility Model

[0005] The purpose of the utility model is to solve the above deficiencies and provide a steam-water desuperheater nozzle partition device.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A steam-water desuperheater nozzle partition device includes a pipe socket sleeve, a desuperheating water pipe passing through the inside of the pipe socket sleeve, and a spray head arranged at the bottom of the desuperheating water pipe. A cavity is arranged between the inner wall of the desuperheating water pipe and the pipe socket sleeve, and a stabilizing component located in the cavity is arranged on the desuperheating water pipe; when the device works, the stabilizing component supports and buffers the desuperheating water pipe.

[0008] Further, the stabilizing component is a positioning partition plate sleeved and fixed on the desuperheating water pipe; the positioning partition plate has a bowl-shaped structure that is narrower at the bottom and wider at the top, with its bottom fixedly connected to the desuperheating water pipe in a penetrating manner, and the upper edge fitting and sliding against the inner wall of the pipe socket sleeve.

[0009] Further, a buckling plate with the same diameter as the inner diameter of the edge and slidably penetrating the desuperheating water pipe is buckled and connected inside the positioning partition plate.

[0010] Further, the stabilizing component includes a fixing plate fixedly connected to the desuperheating water pipe in a penetrating manner, a movable plate located below the fixing plate and slidably penetrating on the desuperheating water pipe, and a buffer component arranged between the fixing plate and the movable plate.

[0011] Further, the buffer component includes a first connecting rod hinged to the lower surface of the fixing plate and a second connecting rod hinged to the upper surface of the movable plate; the first connecting rod and the second connecting rod are hinged to each other.

[0012] Further, a limiting ring fixedly connected to the desuperheating water pipe in a penetrating manner is arranged below the movable plate. When the movable plate contacts the upper surface of the limiting ring, the tip formed by the hinged part of the first connecting rod and the second connecting rod faces the inner wall of the pipe socket sleeve and does not contact it.

[0013] Further, the diameter of the movable plate is the same as the inner diameter of the pipe socket sleeve. During use, the movable plate fits against the inner wall of the pipe socket sleeve and slides.

[0014] Compared with the prior art, the beneficial effect of this solution is that: through the setting of the stabilizing component in the present utility model, when the desuperheating water pipe is installed into the pipe socket sleeve, the stabilizing component can be used to support the periphery of the desuperheating water pipe and shorten the cantilever length of the desuperheating water pipe, so that it cannot vibrate during operation, thereby ensuring the stability of the system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0016] Figure 1 is an assembly schematic diagram between the present utility model and the cavity;

[0017] Figure 2 is a sectional schematic diagram when the present utility model is assembled with the cavity;

[0018] Figure 3 is an assembly schematic diagram between the first embodiment of the present utility model and the desuperheating water pipe;

[0019] Figure 4 is a structural disassembly schematic diagram of the first embodiment of the present utility model;

[0020] Figure 5 This is the front assembly view between the second embodiment of the present utility model and the desuperheating water pipe;

[0021] Figure 6 This is the bottom assembly view between the second embodiment of the present utility model and the desuperheating water pipe;

[0022] Figure 7 This is the assembly view of the second embodiment of the present utility model inside the pipe socket casing;

[0023] Figure 8 This is the structural view of the second embodiment of the present utility model.

[0024] In the figure: 1. Pipe socket casing; 11. Desuperheating water pipe; 12. Sprinkler head; 13. Gap; 14. Steam pipeline; 2. Positioning partition; 21. Rim; 22. Clamping plate; 3. Fixed plate; 31. Movable plate; 4. First connecting rod; 41. Second connecting rod; 5. Limit ring. Specific embodiments

[0025] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0026] Such as Figure 1-4As shown, this is the first embodiment of the present solution, including a socket sleeve 1, a desuperheating water pipe 11 inserted through the inside of the socket sleeve 1, and a nozzle 12 provided at the bottom of the desuperheating water pipe 11. There is a gap 13 between the desuperheating water pipe 11 and the inner wall of the socket sleeve 1. A positioning partition 2 is sleeved and fixed on the desuperheating water pipe 11. The positioning partition 2 has a bowl-shaped structure that is narrower at the bottom and wider at the top. According to the requirement of a high-strength working environment, steel material is selected for it. Its bottom is fixedly inserted through the desuperheating water pipe 11, and the upper edge 21 is slidably abutted against the inner wall of the socket sleeve 1. The socket sleeve 1 is fixedly welded to the outer wall of the steam pipe 14, and the nozzle 12 and part of the desuperheating water pipe 11 inside it extend into the steam pipe 14. When the desuperheater works, the edge 21 provides a supporting force for the desuperheating water pipe 11 by abutting against the inner wall of the socket sleeve 1, so that it will not vibrate. At the same time, the bowl-shaped structure of the positioning partition 2 ensures that the part where its bottom is fixed to the desuperheating water pipe 11 will not directly contact the socket sleeve 1. Therefore, when the desuperheating water pipe 11 is affected by vibration, it will drive the bottom of the positioning partition 2 to move synchronously, and then cause the positioning partition 2 to have a slight deformation. And the positioning partition 2 itself has resistance to deformation. Therefore, during the process of deformation and recovery, it absorbs energy from the vibration, making the whole desuperheating water pipe 11 stable.

[0027] More specifically, a buckle plate 22 with the same diameter as the inner diameter of the edge 21 and slidably inserted through the desuperheating water pipe 11 is buckled inside the positioning partition 2. To ensure that the stability of the positioning partition 2 installed in the socket sleeve 1 is sufficient, the buckle plate 22 is buckled inside the positioning partition 2, so as to support it inside the inner side of the edge 21, so that only the bottom will deform when it is affected by vibration, so that it can maintain stability while absorbing energy.

[0028] Such as Figure 5-6As shown in the figure, this is the second embodiment of the present solution, which includes a fixing plate 3 fixedly sleeved on the desuperheating water pipe 11, a movable plate 31 located below the fixing plate 3 and slidably sleeved on the desuperheating water pipe 11, and a buffer assembly disposed between the fixing plate 3 and the movable plate 31. The buffer assembly includes a first connecting rod 4 hinged to the lower surface of the fixing plate 3 and a second connecting rod 41 hinged to the upper surface of the movable plate 31. The first connecting rod 4 is hinged to the second connecting rod 41. In this embodiment, the hinged part between the first connecting rod 4 and the second connecting rod 41 is used to support the inner wall of the pipe socket sleeve 1, so as to stabilize the desuperheating water pipe 11. When steam passes through the steam pipe 14, the steam will support against the bottom of the movable plate 31, and then push it upward through the pressure, so that the hinged part of the first connecting rod 4 and the second connecting rod 41 abuts against the inner wall of the pipe socket sleeve 1. When the desuperheating water pipe 11 vibrates, the first connecting rod 4 and the second connecting rod 41 will rotate relative to each other and straighten. Since the fixing plate 3 is fixed, the movable plate 31 will be pushed downward during the rotation and straightening process, and the steam will act on the movable plate 31 in the opposite direction to prevent the first connecting rod 4 and the second connecting rod 41 from straightening, thereby resisting the vibration of the desuperheating water pipe 11, so that the desuperheating water pipe 11 has a certain small vibration range while maintaining stability, providing a buffer space for the desuperheating water pipe 11.

[0029] More specifically, a limiting ring 5 fixedly sleeved on the desuperheating water pipe 11 is disposed below the movable plate 31. When the movable plate 31 contacts the upper surface of the limiting ring 5, the tip formed by the hinged part of the first connecting rod 4 and the second connecting rod 41 faces the inner wall of the pipe socket sleeve 1 and does not contact it. Through the setting of the limiting ring 5, the first connecting rod 4 and the second connecting rod 41 are not in a completely straightened state. Therefore, when the movable plate 31 is acted on by the steam pressure, the hinged part of the first connecting rod 4 and the second connecting rod 41 can naturally support against the inner wall of the pipe socket sleeve 1.

[0030] More specifically, the diameter of the movable plate 31 is the same as the inner diameter of the pipe socket sleeve 1. During use, the movable plate 31 abuts against the inner wall of the pipe socket sleeve 1 and slides. When steam passes through the movable plate 31, it will not flow above the movable plate 31. Therefore, the steam pressure can act completely on the lower surface of the movable plate 31, and then push it upward, so that the hinged part of the first connecting rod 4 and the second connecting rod 41 can tightly abut against the inner wall of the pipe socket sleeve 1 to maintain stability.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model.

Claims

1. A desuperheater nozzle partition device for soda water, comprising a pipe seat sleeve (1), a desuperheating water pipe (11) penetrating and arranged inside the pipe seat sleeve (1), and a spray head (12) arranged at the bottom of the desuperheating water pipe (11). A cavity (13) is arranged between the desuperheating water pipe (11) and the inner wall of the pipe seat sleeve (1). It is characterized in that: A stabilizing component is arranged on the desuperheating water pipe (11) and located in the cavity (13); When the device works, the stabilizing component supports and buffers the desuperheating water pipe (11).

2. The nozzle baffle device of the steam desuperheater according to claim 1, characterized in that: The stabilizing component is a positioning partition plate (2) sleeved and fixed on the desuperheating water pipe (11); The positioning partition plate (2) has a bowl-shaped structure that is narrower at the bottom and wider at the top. Its bottom is fixedly connected to the desuperheating water pipe (11) in a penetrating manner, and the upper edge (21) is in sliding contact with the inner wall of the pipe seat sleeve (1).

3. The steam desuperheater nozzle partition device according to claim 2, characterized in that: A clamping plate (22) with a diameter equal to the inner diameter of the edge (21) and slidably penetrating the desuperheating water pipe (11) is snap-connected inside the positioning partition plate (2).

4. The steam desuperheater nozzle baffle device according to claim 1, characterized in that: The stabilizing component includes a fixing plate (3) fixedly connected to the desuperheating water pipe (11) in a penetrating manner, a movable plate (31) located below the fixing plate (3) and slidably penetrating the desuperheating water pipe (11), and a buffer component arranged between the fixing plate (3) and the movable plate (31).

5. The steam desuperheater nozzle baffle device according to claim 4, characterized in that: The buffer component includes a first connecting rod (4) hinged to the lower surface of the fixing plate (3) and a second connecting rod (41) hinged to the upper surface of the movable plate (31); The first connecting rod (4) is hinged to the second connecting rod (41).

6. The nozzle baffle device of the steam desuperheater according to claim 5, characterized in that: A limiting ring (5) fixedly connected to the desuperheating water pipe (11) in a penetrating manner is arranged below the movable plate (31). When the movable plate (31) contacts the upper surface of the limiting ring (5), the tip formed by the hinged part of the first connecting rod (4) and the second connecting rod (41) faces the inner wall of the pipe seat sleeve (1) and does not contact it.

7. The nozzle baffle device of the steam desuperheater according to claim 5, wherein: The diameter of the movable plate (31) is the same as the inner diameter of the pipe seat sleeve (1). During use, the movable plate (31) abuts against the inner wall of the pipe seat sleeve (1) and slides.

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