Pure steam water separation structure

Abstract

The utility model discloses a pure steam water separation structure, including equipment shell, spiral flow guiding blade and respectively setting in the import and export of equipment shell both sides, the inside of import is provided with the air pressure structure for controlling the steam entering speed, the air pressure structure includes the throat pipe, the inside of throat pipe is fixedly connected with a plurality of movable pressure tablets through the spring, and still fixedly connected with SMA component between throat pipe and movable pressure tablet, through above -mentioned equipment makes movable pressure tablet move under the spring effect, changes the throat pipe flow through opening size, synchronously through the elastic diaphragm in telescopic frame sliding maintenance seal, realizes the dynamic control to steam flow rate, makes the separator always keep reasonable centrifugal force when flow fluctuation, avoids the separation efficiency to drop because of the flow rate anomaly, and realizes the self -adaptation adjustment of equipment internal pressure drop, ensures that different load can be separated steam water under high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steam-water separation technology, specifically a pure steam-water separation structure. Background Technology

[0002] Pure steam-water separation structures are mainly used in fields such as pharmaceuticals, food processing, and electronic chip manufacturing, where extremely high steam purity is required. Their core function is to efficiently separate water droplets from moisture-containing steam, obtaining high-purity dry steam. In practical applications, this structure, through specific mechanical design (such as the synergistic effect of pneumatic structures, pressure components, and spiral components), utilizes fluid dynamics principles to guide, accelerate, and rotate the steam flow. This causes water droplets in the steam to separate from the steam under the influence of inertia and centrifugal force and be discharged, thereby ensuring that the dryness of the output steam meets process requirements.

[0003] However, the separation efficiency of existing cyclone separation structures is highly dependent on the stability of steam inlet velocity and flow rate. When the inlet velocity is too low, insufficient centrifugal force or a sudden increase in pressure loss will lead to a significant reduction in separation efficiency. In actual working conditions, fluctuations in steam system load (such as the start-up and shutdown of sterilizers and changes in production line load) often cause drastic changes in inlet parameters. Traditional fixed structures cannot adaptively adjust the flow channel parameters, resulting in separation failure.

[0004] Therefore, this utility model provides a pure steam-water separation structure to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a pure steam-water separation structure, which solves the problem mentioned above that the separation efficiency of existing cyclone separation structures is highly dependent on the stability of the steam inlet velocity and flow rate.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pure steam-water separation structure, comprising a housing, spiral guide vanes, and an inlet and an outlet respectively located on both sides of the housing. The inlet is equipped with a pneumatic structure for controlling the steam entry speed. The pneumatic structure includes a throat tube, and multiple movable pressure plates are fixedly connected inside the throat tube by springs. An SMA assembly is also fixedly connected between the throat tube and the movable pressure plates, so that when the steam flow rate increases or decreases, the SMA assembly deforms due to temperature changes, thereby changing the opening size of the steam through the throat tube and controlling the steam entry rate.

[0007] Preferably, the device housing is provided with a pressure assembly for adjusting the pressure drop inside the device housing. The pressure assembly includes a rotating cylinder, the bottom of which is fixedly connected to a rotating shaft, and the rotating shaft is fixedly connected to the output shaft of a motor at the bottom of the device housing.

[0008] Preferably, the inner wall of the rotating drum is fixedly connected with equidistant guide grooves, and the inclined surface of the guide grooves is arranged in the same direction as the spiral guide vanes. The rotating drum is sleeved on the outside of the spiral guide vanes, and a pressure detector is installed inside the rotating drum. The pressure detector is electrically connected to the motor inside the equipment shell. When the pressure detector detects that the pressure inside the equipment shell is high, indicating that the steam flow rate is high, the pressure detector sends a signal to the motor, and the motor drives the rotating drum to rotate in the opposite direction. The reverse rotation of the rotating drum partially cancels out the spiral flow intensity generated by the inner fixed spiral guide vanes, thereby reducing the rotation speed of the steam in the separator and effectively reducing the pressure loss caused by high-speed rotation. Conversely, when the steam flow rate is low, the steam pressure entering the equipment shell is relatively low. The pressure detector sends a signal to the motor, which then drives the rotating drum to rotate in the same direction as the inner spiral guide vanes, forming a compound spiral flow channel. This significantly enhances the centrifugal force of the steam and more effectively separates water droplets from the steam.

[0009] Preferably, the two ends of the throat tube are respectively fixedly connected to the front end of the venturi tube and the rear end of the venturi tube, and the rear end of the venturi tube is fixedly connected to the inner wall of the equipment housing.

[0010] Preferably, a telescopic frame is fixedly connected inside the throat tube, and multiple elastic diaphragms are movably connected inside the telescopic frame. The elastic diaphragms are fixedly connected to the movable pressure plate, so that the movable pressure plate drives the elastic diaphragms to move inside the telescopic frame when it moves. Beneficial effects

[0011] This invention provides a pure steam-water separation structure. Compared with the prior art, it has the following advantages:

[0012] (1) The pure steam-water separation structure uses the deformation of the SMA component due to the thermal effect to drive the movable pressure plate to move under the action of the spring, changing the size of the throat pipe opening. Simultaneously, the elastic diaphragm slides in the telescopic frame to maintain the seal, thereby realizing the dynamic control of the steam flow rate. This ensures that the separator always maintains a reasonable centrifugal force when the flow rate fluctuates, avoiding the decrease in separation efficiency due to abnormal flow rate.

[0013] (2) The pure steam-water separation structure forms a variable spiral flow channel through the inner guide groove of the rotating drum and the spiral guide blade. The pressure detector monitors the pressure inside the equipment in real time and controls the motor to drive the rotating drum to rotate in both directions. When the steam flow is large, the rotating drum rotates in the opposite direction to offset the spiral flow intensity, thereby reducing the rotation speed and pressure loss. When the flow is small, it rotates in the same direction to enhance the centrifugal force, thereby realizing the adaptive adjustment of the internal pressure drop of the equipment and ensuring that steam and water can be separated efficiently under different loads. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded view of the overall structure of this utility model;

[0016] Figure 3 This is a cross-sectional view of the pressure component structure of this utility model;

[0017] Figure 4 This is a three-dimensional cross-sectional view of the pneumatic structure of this utility model.

[0018] In the picture:

[0019] 1. Equipment casing; 2. Inlet; 3. Outlet;

[0020] 4. Pneumatic structure; 41. Venturi tube front end; 42. Venturi tube rear end; 43. Throat tube; 44. Spring; 45. SMA assembly; 46. Movable pressure plate; 47. Telescopic frame; 48. Elastic diaphragm;

[0021] 5. Pressure assembly; 51. Rotary drum; 52. Rotary shaft; 53. Flow guide channel;

[0022] 6. Spiral guide vanes. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] Please see Figures 1 to 4 A pure steam-water separation structure includes a housing 1, spiral guide vanes 6, and an inlet 2 and an outlet 3 respectively opened on both sides of the housing 1. The inlet 2 is provided with a pneumatic structure 4 for controlling the steam entry speed. The pneumatic structure 4 includes a throat tube 43. Multiple movable pressure plates 46 are fixedly connected inside the throat tube 43 by springs 44. An SMA assembly 45 is also fixedly connected between the throat tube 43 and the movable pressure plates 46 so that when the steam flow rate increases or decreases, the SMA assembly 45 deforms due to the temperature change, thereby changing the opening size of the steam through the throat tube 43 and controlling the steam entry rate.

[0025] The two ends of the throat tube 43 are respectively fixedly connected to the front end 41 of the venturi tube and the rear end 42 of the venturi tube, and the rear end 42 of the venturi tube is fixedly connected to the inner wall of the equipment housing 1.

[0026] The throat tube 43 is also fixedly connected to a telescopic frame 47, and multiple elastic diaphragms 48 are movably connected inside the telescopic frame 47. The elastic diaphragms 48 are fixedly connected to the movable pressure plate 46 so that the movable pressure plate 46 drives the elastic diaphragms 48 to move inside the telescopic frame 47 when it moves.

[0027] During operation, steam enters the pressure structure 4 through inlet 2. The front end 41 and rear end 42 of the Venturi tube form a contraction and expansion channel, which initially rectifies the steam flow. When the steam flow rate increases, the steam temperature rises. The SMA component 45 (shape memory alloy) between the throat tube 43 and the movable pressure plate 46 deforms due to the temperature effect, pushing the movable pressure plate 46 away from the inner wall of the throat tube 43, thereby increasing the flow cross-sectional area of ​​the throat tube 43 and reducing the steam flow rate. When the steam flow rate decreases, the temperature drops, the SMA component 45 contracts, and the spring 44 pushes the movable pressure plate 46 towards the inner wall of the throat tube 43, reducing the flow cross-sectional area and increasing the steam flow rate. When the movable pressure plate 46 moves, it drives the elastic diaphragm 48 to slide within the telescopic frame 47. The elastic diaphragm 48 maintains the seal between the movable pressure plate 46 and the throat tube 43, and the telescopic frame 47 provides support for the elastic diaphragm 48 to prevent steam leakage. Example

[0028] Please see Figures 1 to 4 This embodiment provides a technical solution based on Embodiment 1: A pressure assembly 5 for adjusting the internal pressure drop of the equipment housing 1 is provided inside the housing 1. The pressure assembly 5 includes a rotating cylinder 51, with a rotating shaft 52 fixedly connected to the bottom of the rotating cylinder 51. The rotating shaft 52 is fixedly connected to the output shaft of a motor at the bottom of the equipment housing 1. Equally spaced guide grooves 53 are fixedly connected to the inner wall of the rotating cylinder 51, and the inclined surface of the guide grooves 53 is aligned with the spiral guide vane 6. The rotating cylinder 51 is sleeved on the outside of the spiral guide vane 6. A pressure detector is provided inside the rotating cylinder 51, and the pressure detector is electrically connected to the motor inside the equipment housing 1, so that when the pressure detector detects… When the internal pressure of the equipment casing 1 is high, it indicates that the steam flow rate is high. The pressure detector sends a signal to the motor, which drives the rotating drum 51 to rotate in the opposite direction. The reverse rotation of the rotating drum 51 partially cancels the spiral flow intensity generated by the inner fixed spiral guide vanes 6, thereby reducing the rotation speed of the steam in the separator and effectively reducing the pressure loss caused by high-speed rotation. Conversely, when the steam flow rate is low, the steam pressure entering the equipment casing 1 is relatively low. The pressure detector sends a signal to the motor, which then drives the rotating drum 51 to rotate in the same direction as the inner spiral guide vanes 6, forming a compound spiral flow channel. This significantly enhances the centrifugal force of the steam and more effectively separates water droplets from the steam.

[0029] During operation, after steam enters the equipment casing 1, the spiral guide vanes 6 generate an initial spiral flow. The rotating drum 51 is connected to the motor at the bottom of the equipment casing 1 via the rotating shaft 52. The inclination direction of the inner guide groove 53 is consistent with that of the spiral guide vanes 6. A pressure detector (model: Rosemount3051S pressure transmitter) is installed inside the rotating drum 51. The detector has a measurement range of 0-10 bar, an accuracy of ±0.075%, a temperature range of -40℃ to 125℃, and uses a 4-20mA output signal to monitor the pressure inside the equipment in real time and communicate with the motor control system.

[0030] When the steam flow rate is large, the pressure detector detects that the pressure inside the equipment shell 1 has increased (such as exceeding the highest set threshold), and sends an electrical signal to the controller. The controller controls the motor to rotate, and the motor drives the rotating drum 51 to rotate in the opposite direction. At this time, the rotation direction of the guide channel 53 is opposite to the direction of the spiral flow generated by the spiral guide blade 6, which partially offsets the steam rotation intensity, reduces the steam rotation speed in the separator, and reduces the pressure loss caused by high-speed rotation.

[0031] When the steam flow rate is low, the pressure inside the equipment decreases (below the minimum set threshold of 2 bar). The pressure detector sends a signal, and the motor drives the rotating drum 51 to rotate in the same direction as the spiral guide vane 6. The guide groove 53 and the spiral guide vane 6 form a composite spiral flow channel, which enhances the steam rotation speed, increases the centrifugal force, and causes the water droplets to move toward the inner wall of the equipment shell 1 and be separated and discharged, ensuring the separation efficiency at low flow rates.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] Working principle: During operation, steam enters through inlet 2, is rectified by the front end 41 and rear end 42 of the Venturi tube in the pneumatic structure 4, and then passes through the throat tube 43. At this time, the SMA component 45 undergoes temperature deformation with the change of steam flow, which pushes the movable pressure plate 46 to adjust the opening size of the throat tube 43 under the action of the spring 44. At the same time, the elastic diaphragm 48 slides in the telescopic frame 47 to maintain the seal, thereby controlling the steam entry rate. Subsequently, the steam enters the equipment shell 1 and forms an initial spiral flow through the spiral guide vanes 6. The guide groove 53 on the inner side of the rotating drum 51 is driven by the rotating shaft 52. The pressure is monitored by the internal pressure transmitter, which controls the motor to drive the rotating drum 51 to rotate in both directions. When the pressure is high, the rotating drum 51 rotates in the opposite direction to offset the spiral flow intensity and reduce pressure loss. When the pressure is low, it rotates in the same direction to enhance centrifugal force. Finally, the separated steam is discharged from the outlet 3.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pure steam-water separation structure, comprising a housing (1), spiral guide vanes (6), and an inlet (2) and an outlet (3) respectively opened on both sides of the housing (1), characterized in that: The inlet (2) is provided with a pneumatic structure (4) for controlling the steam entry speed. The pneumatic structure (4) includes a throat tube (43). The inside of the throat tube (43) is fixedly connected to multiple movable pressure plates (46) by springs (44). An SMA assembly (45) is also fixedly connected between the throat tube (43) and the movable pressure plates (46).

2. The pure steam-water separation structure according to claim 1, characterized in that: The device housing (1) is provided with a pressure assembly (5) for adjusting the pressure drop inside the device housing (1). The pressure assembly (5) includes a rotating cylinder (51). The bottom of the rotating cylinder (51) is fixedly connected to a rotating shaft (52), and the rotating shaft (52) is fixedly connected to the output shaft of the motor at the bottom of the device housing (1).

3. The pure steam-water separation structure according to claim 2, characterized in that: The inner wall of the rotating drum (51) is fixedly connected with equidistant guide grooves (53), and the inclined surface of the guide grooves (53) is arranged in the same direction as the spiral guide blades (6). The rotating drum (51) is sleeved on the outside of the spiral guide blades (6), and a pressure detector is provided inside the rotating drum (51), and the pressure detector is electrically connected to the motor inside the equipment housing (1).

4. The pure steam-water separation structure according to claim 1, characterized in that: The throat tube (43) is fixedly connected to the front end (41) of a venturi tube and the rear end (42) of a venturi tube at both ends, and the rear end (42) of the venturi tube is fixedly connected to the inner wall of the equipment housing (1).

5. The pure steam-water separation structure according to claim 1, characterized in that: The throat tube (43) is also fixedly connected to a telescopic frame (47), and multiple elastic diaphragms (48) are movably connected inside the telescopic frame (47). The elastic diaphragms (48) are fixedly connected to the movable pressure plate (46) so that the movable pressure plate (46) drives the elastic diaphragms (48) to move inside the telescopic frame (47) when it moves.

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