Vertical superheated steam heat accumulator

Abstract

The invention provides a vertical superheated steam heat accumulator, and particularly relates to the field of heat energy equipment. The vertical superheated steam heat accumulator comprises a tank body, an air inlet pipe which is rotatably connected to one side of the tank body and used for introducing steam, an air outlet pipe which is arranged at the top of the tank body and used for discharging the steam and injecting softened water, and a water outlet which is formed in the bottom of the side, opposite to the air inlet pipe, of the tank body, and a plurality of branch pipes are fixedly connected to the air inlet pipe; and a plurality of air nozzles are formed in the plurality of branch pipes. According to the vertical superheated steam heat accumulator provided by the invention, through the rotatable air inlet pipe, the branch pipe and the mechanical linkage type air jet hole controlled by the trigger block, uniform and intermittent jet of superheated steam in a large-area area at the bottom of the tank body is realized; the problems that a traditional fixed steam distributor is uneven in steam distribution and prone to forming temperature stratification and thermal dead zones are solved, and the heat exchange efficiency and the utilization rate of the heat storage capacity are improved.

Description

Technical Field

[0001] This invention relates to the field of thermal energy equipment technology, specifically a vertical superheated steam accumulator. Background Technology

[0002] Vertical superheated steam accumulators are a common thermal energy storage device in industrial steam systems. They are used to temporarily store superheated steam generated in fluctuations or intermittently, and release it stably and continuously when needed. The device usually adopts a vertical tank structure, filled with softened water as the heat storage medium. By directly injecting superheated steam into the water, the huge latent heat of vaporization of the water is used for energy storage.

[0003] However, when using vertical superheated steam accumulators, we found that the fixed gas distribution pipes only release steam in a limited area at the bottom of the tank. This causes the steam to surge out in that area, resulting in violent boiling of the local water. Meanwhile, the softened water far from the gas distribution area does not exchange heat sufficiently, forming temperature stratification and thermal dead zones. This significantly reduces the heat exchange efficiency and effective heat storage capacity of the accumulator. Long-term uneven heating and cooling thermal stress can also affect the stability and safety of the tank.

[0004] Therefore, it is necessary to provide a new vertical superheated steam accumulator to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem to be solved by this invention is to overcome the defects in the prior art and provide a vertical superheated steam accumulator. Through the synergistic effect of a rotating steam distribution structure and a mechanical triggering mechanism, it solves the problem of temperature stratification easily forming at the fixed steam outlet in traditional accumulators. Thus, while achieving efficient heat storage, it simultaneously achieves uniform steam distribution and forced water mixing during operation, improving the system's thermal performance and reducing energy consumption and maintenance costs. The specific technical solution is as follows: To solve the above-mentioned technical problems, the present invention provides a vertical superheated steam accumulator, comprising a tank body, an inlet pipe rotatably connected to one side of the tank body for introducing steam, an outlet pipe opened at the top of the tank body for discharging steam and injecting softened water, and a water outlet opened at the bottom of the tank body on the side away from the inlet pipe. Multiple branch pipes are fixedly connected to the inlet pipe, and multiple jet nozzles are opened on each of the branch pipes. A rotating block is rotatably connected to the inner wall of the tank body, with its rotating shaft coinciding with the horizontal projection direction of the inlet pipe's rotating shaft. Multiple rotating plates are rotatably connected to the rotating block, and the rotating plates are adapted to the multiple branch pipes. Multiple sealing blocks for blocking the jet nozzles are provided on the rotating plates. A trigger block is fixedly connected to the bottom of the tank body. The trigger block is used to cause the sealing blocks to move away from the jet nozzles when the rotating plates rotate with the branch pipes to the bottom, thereby releasing steam from the jet nozzles.

[0006] Preferably, a motor is fixedly connected to the tank body, a drive gear is fixedly connected to the output end of the motor, a follower gear is fixedly connected to the air inlet pipe, the drive gear and the follower gear are meshed, and the motor is used to drive the air inlet pipe to rotate.

[0007] Preferably, a sealing ring is fixedly connected at the rotatable connection between the tank body and the air inlet pipe, and the sealing ring is used to seal the internal working environment of the tank body.

[0008] Preferably, a plurality of movable rods are slidably connected to the rotating plate, and the plurality of movable rods are fixedly connected to a mounting plate. The mounting plate is elastically connected to the rotating plate by a plurality of springs, one end of the spring is fixedly connected to the mounting plate, and the other end of the spring is fixedly connected to the rotating plate. The plurality of sealing blocks are fixedly connected to the mounting plate, and the sealing blocks are able to block the air outlet in the initial state.

[0009] Preferably, trigger plates are fixedly connected to both sides of the mounting plate. The trigger plates are adapted to the trigger blocks, so that when the mounting plate rotates with the mounting plate, the trigger plates can be squeezed and driven to move the mounting plate, so that the multiple sealing blocks are moved away from the air outlet.

[0010] Preferably, the trigger block has a first guide surface with an inclined plane on both sides, and the two trigger plates have a second guide surface with an inclined plane on their opposite sides. The first guide surface and the second guide surface are used to guide the trigger block to squeeze the trigger plate so as to switch the opening and closing state of the jet nozzle.

[0011] Preferably, multiple rotating rods are rotatably connected to both sides of the mounting plate, and stirring rods are fixedly connected to each of the multiple rotating rods. The stirring rods are used to further agitate the softened water and shear the steam as the rotating plate and mounting plate rotate, thereby improving the contact effect between the steam and the softened water.

[0012] Preferably, a plurality of trigger racks are fixedly connected to the mounting plate, and a trigger gear is fixedly connected to the rotating rod. The trigger gear meshes with the trigger racks, and the trigger gear is used to drive the stirring rod to rotate.

[0013] Beneficial effects Compared with related technologies, the vertical superheated steam accumulator provided by the present invention has the following beneficial effects: 1. The vertical superheated steam accumulator proposed in this invention achieves uniform and intermittent injection of superheated steam over a large area at the bottom of the tank by setting a rotatable air inlet pipe, branch pipe and mechanical linkage jet nozzle controlled by a trigger block. This solves the problems of uneven steam distribution and easy formation of temperature stratification and thermal dead zone in traditional fixed steam distributors, and improves heat exchange efficiency and utilization rate of heat storage capacity.

[0014] 2. The vertical superheated steam accumulator proposed in this invention achieves automatic and forced stirring of softened water during steam distribution by a stirring rod assembly set on a rotating plate and linked by a triggering mechanism. This solves the problem of water temperature stratification in the tank caused by insufficient contact between the rising steam and the softened water, ensuring rapid and uniform diffusion of steam heat. At the same time, the shearing effect of the stirring rod on the rising steam flow further enhances the mixing of steam and softened water, improving heat transfer efficiency.

[0015] 3. The vertical superheated steam accumulator proposed in this invention uses mechanical triggering to ensure that the jet nozzles only open when the branch pipes rotate to the bottom of the tank, ensuring that steam can be directly injected into the depths of the softened water, achieving efficient and centralized heat exchange. At the same time, the continuously rotating branch pipes themselves can also effectively agitate the water, break down temperature stratification, and enhance the uniform diffusion of heat throughout the container. This mechanical jet nozzle opening and closing control method reduces the investment in device operating costs and improves the stability and service life of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a vertical superheated steam accumulator according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the tank of a vertical superheated steam accumulator according to the present invention; Figure 3 This is a schematic diagram of the internal structure of another tank of a vertical superheated steam accumulator according to the present invention. Figure 4 This is a split view of the branch pipes and rotating plate of a vertical superheated steam accumulator according to the present invention; Figure 5 This is a diagram showing the state of a vertical superheated steam accumulator of the present invention when the trigger plate is about to contact the trigger block; Figure 6This is a diagram showing the state of the trigger block pressing the trigger plate in a vertical superheated steam accumulator according to the present invention.

[0018] Explanation of icon numbers: 1. Tank body; 11. Air inlet pipe; 12. Air outlet pipe; 13. Water outlet; 2. Branch pipe; 3. Jet nozzle; 4. Rotating block; 6. Rotating plate; 7. Movable rod; 8. Spring; 9. Mounting plate; 10. Sealing block; 11. Trigger block; 101. First guide surface; 12. Trigger plate; 102. Second guide surface; 13. Rotating rod; 14. Stirring rod; 15. Trigger gear; 16. Trigger rack; 17. Motor; 18. Drive gear; 19. Follower gear; 20. Sealing ring. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] Please see Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a vertical superheated steam accumulator, including a tank body 1, an inlet pipe 11 rotatably connected to one side of the tank body 1 for introducing steam, an outlet pipe 12 opened at the top of the tank body 1 for discharging steam and injecting softened water, and a water outlet 13 opened at the bottom of the tank body 1 on the side away from the inlet pipe 11. The tank body 1 serves as a pressure vessel, with the inlet pipe 11 rotatably connected to one side of it via a bearing structure. The inlet pipe 11 is used to introduce external superheated steam into the tank. A composite interface with both water inlet and steam outlet functions is opened at the top of the tank body 1, which can both replenish softened water into the tank and output steam when needed. A water outlet 13 is provided at the bottom of the tank body 1 on the side away from the inlet of the inlet pipe 11 for maintenance and venting. Multiple branch pipes 2 are fixedly connected to the inlet pipe 11. Both the branch pipes 2 and the inlet pipe 11 are horizontally arranged, and multiple jet nozzles 3 are opened on each of the multiple branch pipes 2. A rotating shaft is rotatably connected to the inner wall of the tank body 1. A rotating block 4 is aligned with the horizontal projection direction of the intake pipe 11. Multiple rotating plates 6 are rotatably connected to the rotating block 4. The multiple rotating plates 6 are adapted to multiple branch pipes 2. Multiple sealing blocks 10 for blocking the jet nozzles 3 are provided on the rotating plates 6. A trigger block 11 is fixedly connected to the bottom of the tank body 1. The trigger block 11 is used to move the sealing blocks 10 away from the jet nozzles 3 when the rotating plates 6 rotate with the branch pipes 2 to the bottom, so that the jet nozzles 3 can release steam. Multiple rotating plates 6 are fixedly connected to the rotating block 4. The position of the rotating plates 6 corresponds one-to-one with each branch pipe 2. Each rotating plate 6 is provided with multiple sealing blocks 10, and its position can just block the jet nozzles 3 on the branch pipes 2. A trigger block 11 is fixedly installed at the center of the bottom of the tank body 1. When the rotating plates 6 rotate with the branch pipes 2 to the bottom position of the tank body 1, the trigger block 11 will act on the mechanism on the rotating plates 6, forcing the sealing blocks 10 to lift up, thereby opening the jet nozzles 3 to release steam.

[0023] Specifically, a servo motor 17 is fixedly installed on the outer wall of the tank 1. A drive gear 18 is fixed to the output shaft of the servo motor 17, and a follower gear 19 is fixedly connected to the air inlet pipe 11. The drive gear 18 and the follower gear 19 mesh with each other, thereby transmitting the power of the motor 17 to the air inlet pipe 11, driving it to rotate continuously at a stable speed, ensuring that each branch pipe 2 can rotate along the rotation center of the air inlet pipe 11, so that the jet nozzles 3 on the multiple branch pipes 2 are in an orderly manner at the bottom of the tank 1, that is, at the depth of the softened water.

[0024] In practice, in order to ensure the sealing of the rotating connection between the air inlet pipe 11 and the tank body 1, the sealing ring 20 can be set as a mechanical seal or a stuffing box seal, so as to ensure the pressure inside the tank body 1 is stable.

[0025] In addition, multiple movable rods 7 are slidably connected to the rotating plate 6, and the multiple movable rods 7 are fixedly connected to the mounting plate 9. In specific implementation, the rotating plate 6 is close to the air intake pipe 11 and the mounting plate 9 is close to the branch pipe 2. The mounting plate 9 is elastically connected to the rotating plate 6 through multiple springs 8. One end of the spring 8 is fixedly connected to the mounting plate 9, and the other end of the spring 8 is fixedly connected to the rotating plate 6. Multiple sealing blocks 10 are fixedly connected to the mounting plate 9. In the initial state, the sealing blocks 10 can just block the jet nozzle 3.

[0026] In this embodiment, there are three branch pipes 2 and three rotating plates 6. Each branch pipe 2 has five air jets 3. Correspondingly, each rotating plate 6 has five sealing blocks 10. The sealing block 10 on each rotating plate 6 can just block the air jets 3 on its corresponding branch pipe 2. The preload of the spring 8 is used to ensure the sealing effect of the sealing block 10 in the initial state.

[0027] In addition, to ensure the controllability of the opening and closing of the jet nozzle 3, trigger plates 12 are fixedly connected to both sides of the mounting plate 9. The trigger plates 12 are adapted to the trigger blocks 11, so that when the trigger plates 12 rotate with the mounting plate 9, they can be squeezed by the trigger plates 12 to drive the mounting plate 9 to move, so that the multiple sealing blocks 10 are away from the jet nozzle 3. When the entire rotating mechanism is running, the trigger plates 12 rotate to the position of the trigger blocks 11 at the bottom of the tank. The trigger blocks 11 will squeeze the trigger plates 12 from the side. This squeezing force overcomes the preload of the spring 8 and pushes the entire mounting plate 9 together with the movable rod 7 to move away from the rotating plate 6, thereby driving the sealing blocks 10 to disengage from the jet nozzle 3 and completing the opening of the jet nozzle 3.

[0028] It should be noted that since multiple sealing blocks 10 are in the state of closing the air jet 3 under the preload of spring 8 in the initial state, that is, multiple sealing blocks 10 are located inside the air jet 3, the branch pipe 2 will also drive multiple rotating plates 6 to rotate when it rotates with the air intake pipe 11. In specific implementation, in order to further ensure the consistency of rotation of rotating plate 6 and branch pipe 2, rotating block 4 can also be fixed to the end of air intake pipe 11.

[0029] Furthermore, both sides of the trigger block 11 are provided with a first guide surface 101 with an inclined surface, and the opposite surfaces of the two trigger plates 12 are provided with a second guide surface 102 with an inclined surface. The first guide surface 101 and the second guide surface 102 are used to guide the trigger block 11 to squeeze the trigger plate 12 so as to facilitate the switching of the opening and closing state of the jet nozzle 3. The inclined first guide surface 101 and the second guide surface 102 can improve the smoothness of their contact, ensure the smoothness of the triggering process, reduce impact and avoid the phenomenon of the trigger block 11 and the trigger plate 12 getting stuck.

[0030] Multiple rotating rods 13 are rotatably connected to both sides of the mounting plate 9. Each rotating rod 13 is fixedly connected to a stirring rod 14. The stirring rod 14 is used to further agitate the softened water and shear the steam as the rotating plate 6 and mounting plate 9 rotate, thereby improving the contact effect between the steam and the softened water. This arrangement can enhance the agitation of the water in the tank and the mixing effect of the steam and the softened water. When the mounting plate 9 revolves with the rotating mechanism, these stirring rods 14 slide across the water and rotate around the axis of the rotating rod 13, thereby strongly shearing and mixing the water and the rising steam bubbles.

[0031] In addition, multiple trigger racks 16 are fixedly connected to the mounting plate 9, and trigger gears 15 are fixedly connected to the rotating rod 13. The trigger gears 15 mesh with the trigger racks 16. The trigger gears 15 are used to drive the stirring rod 14 to rotate. Through the setting of the trigger gears 15 and trigger racks 16, the stirring rod 14 can be driven to rotate when the trigger plate 12 is squeezed by the trigger block 11 and the sealing block 10 is driven to leave the jet port 3. During the reset process of the spring 8, the stirring rod 14 will also be driven to rotate in the opposite direction. Without the need for an additional power source, further stirring can be started at the same time as the jet port 3 is opened, which enhances the mixing effect of steam and softened water and makes the heat exchange more rapid and complete.

[0032] Working principle: When using this device, external superheated steam is introduced into the system through the inlet pipe 11. At this time, the inlet pipe 11 rotates continuously under the drive of the motor 17, causing multiple horizontal branch pipes 2 to rotate synchronously inside the tank 1. The jet nozzles 3 on each branch pipe 2 are blocked by the corresponding sealing blocks 10 on the rotating plate 6 under the preload of the spring 8. When the branch pipe 2 rotates to the bottom of the tank 1, the trigger block 11 fixed to the bottom of the tank contacts the inclined surface of the trigger plate 12 on the rotating plate 6 through its inclined structure and generates compression. This compression force overcomes the force of the spring 8 and pushes the mounting plate 9 and the sealing block 10 fixed thereon away from the branch pipe 2. The spring 8 moves to open the jet nozzle 3, allowing superheated steam to be directly injected into the softened water deep at the bottom of the tank for efficient heat exchange. At the same time, the trigger action drives the mounting plate 9 to move. Through the meshing of the rack on the plate and the gear on the rotating rod 13, the stirring rod 14 is driven to rotate at high speed. The rotating branch pipe 2 itself drives the water flow, which, together with the strong shearing and stirring of the stirring rod 14, further enhances the mixing and heat transfer of steam and softened water. When the branch pipe 2 rotates away from the bottom, that is, when the trigger plate 12 passes the trigger block 11, the spring 8 drives the sealing block 10 to reset and re-close the jet nozzle 3. The stirring rod 14 also rotates in the opposite direction.

[0033] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A vertical superheated steam accumulator, characterized in that: The system includes a tank body (1), an air inlet pipe (11) rotatably connected to one side of the tank body (1) for introducing steam, an air outlet pipe (12) opened at the top of the tank body (1) for discharging steam and injecting softened water, and a water outlet (13) opened at the bottom of the tank body (1) on the side away from the air inlet pipe (11). Multiple branch pipes (2) are fixedly connected to the air inlet pipe (11), and multiple jet nozzles (3) are opened on each of the multiple branch pipes (2). A rotating shaft is rotatably connected to the inner wall of the tank body (1) and the rotating shaft of the air inlet pipe (11) is projected horizontally. A rotating block (4) with overlapping directions, a plurality of rotating plates (6) are rotatably connected to the rotating block (4), the plurality of rotating plates (6) are adapted to the plurality of branch pipes (2), and a plurality of sealing blocks (10) for sealing the jet nozzle (3) are provided on the rotating plate (6). A trigger block (11) is fixedly connected to the bottom of the tank body (1). The trigger block (11) is used to make the sealing block (10) move away from the jet nozzle (3) when the rotating plate (6) rotates with the branch pipe (2) to the bottom so that the jet nozzle (3) releases steam.

2. The vertical superheated steam accumulator according to claim 1, characterized in that: A motor (17) is fixedly connected to the tank (1), and a drive gear (18) is fixedly connected to the output end of the motor (17). A follower gear (19) is fixedly connected to the air inlet pipe (11). The drive gear (18) meshes with the follower gear (19). The motor (17) is used to drive the air inlet pipe (11) to rotate.

3. The vertical superheated steam accumulator according to claim 2, characterized in that: A sealing ring (20) is fixedly connected at the rotatable connection between the tank (1) and the air inlet pipe (11). The sealing ring (20) is used to seal the internal working environment of the tank (1).

4. The vertical superheated steam accumulator according to claim 1, characterized in that: Multiple movable rods (7) are slidably connected to the rotating plate (6). The multiple movable rods (7) are fixedly connected to the mounting plate (9). The mounting plate (9) is elastically connected to the rotating plate (6) through multiple springs (8). One end of the spring (8) is fixedly connected to the mounting plate (9), and the other end of the spring (8) is fixedly connected to the rotating plate (6). Multiple sealing blocks (10) are fixedly connected to the mounting plate (9). The sealing blocks (10) can just block the air outlet (3) in the initial state.

5. The vertical superheated steam accumulator according to claim 4, characterized in that: Both sides of the mounting plate (9) are fixedly connected to trigger plates (12). The trigger plates (12) are adapted to the trigger blocks (11) so that when the trigger plates (12) rotate with the mounting plate (9), they can be squeezed by the trigger plates (12) to drive the mounting plate (9) to move, so that the multiple sealing blocks (10) are away from the jet nozzle (3).

6. The vertical superheated steam accumulator according to claim 5, characterized in that: Both sides of the trigger block (11) are provided with a first guide surface (101) arranged at an angle, and the opposite sides of the two trigger plates (12) are provided with a second guide surface (102) arranged at an angle. The first guide surface (101) and the second guide surface (102) are used to guide the trigger block (11) to squeeze the trigger plate (12) so as to facilitate the switching of the opening and closing state of the jet nozzle (3).

7. The vertical superheated steam accumulator according to claim 5, characterized in that: Multiple rotating rods (13) are rotatably connected to both sides of the mounting plate (9), and stirring rods (14) are fixedly connected to each of the multiple rotating rods (13). The stirring rods (14) are used to further agitate the softened water and shear the steam during the rotation of the rotating plate (6) and the mounting plate (9), thereby improving the contact effect between the steam and the softened water.

8. The vertical superheated steam accumulator according to claim 7, characterized in that: Multiple trigger racks (16) are fixedly connected to the mounting plate (9), and a trigger gear (15) is fixedly connected to the rotating rod (13). The trigger gear (15) meshes with the trigger racks (16) and is used to drive the stirring rod (14) to rotate.

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