Steam drier

Abstract

The application discloses a steam dry-wet separator, which aims at separating tiny liquid drops in steam flow, and has the technical scheme that the steam dry-wet separator comprises a body, an input port and an output port are arranged on the body, the body is divided into a first chamber and a second chamber through a first partition plate, a first through hole is arranged on the first partition plate, the input port, the first chamber, the first through hole, the second chamber and the output port are sequentially communicated, a cyclone structure is further arranged, the cyclone structure is matched with the input port and the first chamber to generate cyclone of steam in the first chamber, a baffle group is further arranged in the second chamber to form a meandering steam passage in the second chamber, the first through hole, the steam passage and the output port are sequentially communicated, and the steam dry-wet separator belongs to the field of steam energy equipment.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of steam energy equipment, and more particularly, to a steam dry-wet separator. BACKGROUND

[0002] Steam inevitably forms tiny droplets in the process of generation in a boiler and transportation in a pipeline. The tiny droplets are mixed with various mineral substances and micro-metal particles in the boiler water. Meanwhile, various mixed solid substances are formed due to corrosion and rust of the pipeline, so that the tiny droplets continuously increase the mixed solid substances during transportation. The existence of the tiny droplets in the steam flow not only reduces the available heat energy, but also adheres to the mixed solid substances carried thereby to the pipe wall of a heat exchange device to form scale and water film, thereby reducing the heat exchange efficiency and seriously wasting steam energy. Moreover, the tiny droplets erode the pipeline components with high-speed steam flow to cause failure of the pipeline components, thereby seriously increasing the operation and maintenance cost.

[0003] The existing drainage device in the pipeline can only effectively discharge the condensed water in liquid flow, and cannot separate the tiny droplets in the steam flow. SUMMARY

[0004] The main purpose of the present application is to provide a steam dry-wet separator, which aims to separate the tiny droplets in the steam flow.

[0005] According to a first aspect of the present application, a steam dry-wet separator is provided, which comprises a body, wherein an input port and an output port are arranged on the body; the body is divided into a first chamber and a second chamber by a first partition plate, wherein a first through hole is arranged on the first partition plate, and the input port, the first chamber, the first through hole, the second chamber and the output port are sequentially communicated; the steam dry-wet separator further comprises a cyclone structure, which cooperates with the input port and the first chamber to generate cyclone in the first chamber.

[0006] The steam dry-wet separator further comprises a baffle plate set arranged in the second chamber to form a serpentine steam passage in the second chamber, wherein the first through hole, the steam passage and the output port are sequentially communicated.

[0007] In a specific embodiment of the present application, the cyclone structure is a turbine blade arranged in the first chamber, and the input end of the turbine blade corresponds to the arrangement of the input port.

[0008] In a specific embodiment of the present application, the baffle plate set comprises alternately arranged first baffle plates and second baffle plates; the first baffle plates are arranged on the inner wall of the second chamber and extend to the middle part of the second chamber to form first ventilation ports in the second chamber; and the first through hole corresponds to the arrangement of the first baffle plates.

[0009] The second baffle is arranged on the inner wall of the second chamber and extends to the middle of the second chamber to form a second vent in the second chamber.

[0010] The first vent corresponds to the arrangement of the second baffle, and the second vent corresponds to the arrangement of the first baffle.

[0011] In a specific embodiment of the present application, the first baffle comprises an inclined section, which is inclined towards the direction of the output port.

[0012] In a specific embodiment of the present application, one side of the first baffle close to the middle of the second chamber is provided with a first curved section, which is curved towards the direction of the first through hole.

[0013] In a specific embodiment of the present application, one side of the second baffle close to the middle of the second chamber is provided with a second curved section, which is curved towards the direction of the first through hole.

[0014] In a specific embodiment of the present application, a second partition is further arranged in the body, and the second partition cooperates with the first partition to form a third chamber in the body; the second partition is provided with a second through hole; the first chamber, the third chamber and the second chamber are sequentially communicated; and the third chamber is provided with a turbulence vane.

[0015] In a specific embodiment of the present application, the second partition is arranged in the first chamber; and the turbulence vane is a plurality of turbulence vanes arranged in a diverging manner on the first partition, and the diverging center of the plurality of turbulence vanes corresponds to the first through hole.

[0016] In a specific embodiment of the present application, one side of the turbulence vane in the length direction is fixed on the first partition, and the other side is inclined upward and provided with an arc-shaped section.

[0017] The plurality of turbulence vanes have the same inclination direction, and the diverging center of the plurality of turbulence vanes coincides with the center of the first through hole.

[0018] In a specific embodiment of the present application, the body is arranged horizontally, and the input port and the output port are arranged at two ends of the body in the length direction.

[0019] The lower side of the body comprises an inclined section and a horizontal section connected in sequence, the lower end of the inclined section is arranged close to the output port, and the horizontal section is provided with a water drain port.

[0020] The first partition, the second partition and the second baffle correspond to the arrangement of the inclined section of the body, and the lower end of the first partition, the lower end of the second partition and the lower end of the second baffle are all provided with a water drain gap between the inclined section.

[0021] One of the technical solutions in the above technical solution of the present application has at least one of the following advantages or beneficial effects:

[0022] In actual application, steam is input from the input port into the body and is output from the output port via the first chamber, the first through hole and the second chamber. In this process, since the first chamber is provided with the cyclone structure, the steam input into the first chamber forms a cyclone, i.e. the steam is driven to generate a centrifugal force, so that the liquid drops in the steam are separated and gathered to the inner wall of the first chamber. The gathered liquid drops will sink based on the action of gravity. Since the second chamber is provided with the baffle group, and the baffle group forms a meandering steam passage, the liquid drops in the steam will impact the inner wall of the steam passage when being conveyed in the steam passage, so that the liquid drops are gathered. The gathered liquid drops will sink based on the action of gravity. The cyclone structure and the baffle group effectively realize the separation of the small liquid drops in the steam flow, so that the output port outputs pure dry steam. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be further described below in conjunction with the drawings and examples.

[0024] Fig. 1 is a structural diagram of Example 1 of the present application;

[0025] Fig. 2 is a structural diagram of the cooperation between the spoiler blade and the first baffle plate of Example 1 of the present application;

[0026] Fig. 3 is a flow direction schematic diagram of the steam flow of Example 1 of the present application. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0028] Example 1

[0029] Referring to Figs. 1-2 shown, a steam dry-wet separator includes a body 1, the body 1 is provided with an input port 11 and an output port 12; the body 1 is divided into a first chamber 13 and a second chamber 14 by a first baffle plate 2, the first baffle plate 2 is provided with a first through hole 21, the input port 11, the first chamber 13, the first through hole 21, the second chamber 14 and the output port 12 are sequentially communicated, and further includes a cyclone structure 3, the cyclone structure 3 cooperates with the input port 11 and the first chamber 13 to make the steam generate a cyclone in the first chamber 13;

[0030] Also included is a baffle group 4, which is arranged in the second chamber 14 to form a serpentine steam passage in the second chamber 14, and the first through hole 21, the steam passage, and the output port 12 are sequentially communicated.

[0031] In actual application, steam is input into the body 1 from the input port 11 and is output from the output port 12 via the first chamber 13, the first through hole 21, and the second chamber 14. In this process, since the cyclone structure 3 is arranged in the first chamber 13, it causes the steam input into the first chamber 13 to form a cyclone, i.e., to drive the steam to generate a centrifugal force, so that the liquid droplets in the steam are separated and gathered to the inner wall of the first chamber 13, and the gathered liquid droplets are settled based on gravity; since the baffle group 4 is arranged in the second chamber 14 and forms a serpentine steam passage, the liquid droplets in the steam are gathered when being conveyed in the steam passage, and the gathered liquid droplets are settled based on gravity; the arrangement of the cyclone structure 3 and the baffle group 4 effectively separates the small liquid droplets in the steam flow, so that pure dry steam is output from the output port 12.

[0032] Specifically, the cyclone structure 3 is a turbine blade 31 arranged in the first chamber 13, and the input end of the turbine blade 31 is arranged corresponding to the input port 11; wherein the turbine blade 31 is installed in the first chamber 13 through a fixing structure 32, and the turbine blade 31 is rotationally connected to the fixing structure 32; in actual application, the steam flow is conveyed at high speed, and under the action of the high-speed steam flow, the turbine blade 31 rotates at high speed to drive the steam flow to form a cyclone.

[0033] The cyclone structure 3 can also be a tangential conveying pipe, which is used to input the steam flow into the first chamber 13 tangentially to cause the steam flow to form a cyclone; at this time, the first chamber 13 should be a cylindrical structure.

[0034] Specifically, the baffle group 4 includes alternately arranged first baffles 41 and second baffles 42; the first baffles 41 are arranged on the inner wall of the second chamber 14 and extend to the middle part of the second chamber 14 to form a first ventilation port in the second chamber 14; the first through hole 21 is arranged corresponding to the first baffles 41; the second baffles 42 are arranged on the inner wall of the second chamber 14 and extend to the middle part of the second chamber 14 to form a second ventilation port in the second chamber 14; the first ventilation port is arranged corresponding to the second baffles 42; and the second ventilation port is arranged corresponding to the first baffles 41.

[0035] As a specific implementation of the embodiment, the first baffles 41 are two, the second baffle 42 is one and is arranged between the two first baffles 41; the first baffles 41 and the second baffle 42 form a steam passage in cooperation with the second chamber 14, and after the steam flow hits the first baffles 41 and the second baffle 42, the tiny droplets in the steam flow are gathered on the first baffles 41 and the second baffle 42, thereby playing a role in separating the tiny droplets.

[0036] Preferably, the first baffles 41 include inclined sections 411 that are inclined toward the direction of the output port 12, and the inclined sections 411 play a role in guiding the steam flow and can also prolong the contact path of the steam flow with the first baffles 41, thereby improving the separation effect of the tiny droplets; a side of the first baffles 41 close to the middle of the second chamber 14 is provided with first curved sections 412 that are curved toward the direction of the first through hole 21, and the first curved sections 412 also play a role in guiding the steam flow, and can change the flow direction of the steam flow and prolong the conveying path thereof, thereby being beneficial to the settlement of the tiny droplets, wherein the first curved sections 412 of the first baffles 41 close to the first through hole 21 are curved toward the first partition 2, and the first curved sections 412 of the first baffles 41 away from the first through hole 21 are curved toward the second baffle 42.

[0037] A side of the second baffle 42 close to the middle of the second chamber 14 is provided with a second curved section 421 that is curved toward the direction of the first through hole 21 and is curved toward the first baffles 41 close to the first through hole 21, and the second curved section 421 has the same effect as the first curved section 412, and also plays a role in guiding the steam flow and changing the direction, thereby being beneficial to the settlement of the tiny droplets.

[0038] In the embodiment, the body 1 is further provided with a second partition 5 that cooperates with the first partition 2 to form a third chamber 15 in the body 1; the second partition 5 is provided with a second through hole 51; the first chamber 13, the third chamber 15 and the second chamber 14 are sequentially communicated; the third chamber 15 is provided with a turbulence vane 6, and the arrangement of the turbulence vane 6 can make the steam flow turbulent, thereby being beneficial to the gathering of the tiny droplets.

[0039] Specifically, the second partition plate 5 is located in the first chamber 13; the turbulence vanes 6 are a plurality of divergingly arranged on the first partition plate 2; one side of the turbulence vanes 6 in the length direction is fixed on the first partition plate 2, and the other side extends upwardly and is provided with an arc-shaped portion; the turbulence vanes 6 have the same inclination direction, the divergence center coincides with the center of the first through hole 21, and the arrangement of the turbulence vanes 6 can divide the steam flow into a plurality of steam flows in different directions, the steam flows collide with each other, which is beneficial to the coalescence of the tiny droplets into larger droplets, facilitates the droplet sedimentation, and effectively improves the separation effect of the steam flow and the tiny droplets.

[0040] In the embodiment, the body 1 is horizontally arranged, the input port 11 and the output port 12 are located at two ends of the body 1 in the length direction; the first baffle 41 is arranged at the upper portion of the second chamber 14, and the second baffle 42 is arranged at the lower portion of the second chamber 14; the lower side of the body 1 comprises a tilt portion 16 and a horizontal portion 17 connected in sequence, the lower end of the tilt portion 16 is arranged close to the output port 12, and the horizontal portion 17 is provided with a drain port 7; the first partition plate 2, the second partition plate 5 and the second baffle 42 are arranged corresponding to the tilt portion 16 of the body 1, and the lower end of the first partition plate 2, the lower end of the second partition plate 5 and the lower end of the second baffle 42 are all provided with a drain gap 18 between the tilt portion 16;

[0041] In actual application, the drain port 7 is provided with a drain valve, the drain valve is in a normally closed state; the sedimented droplets pass through the drain gap 18 and gather at the horizontal portion 17 based on the gravity, and when the droplets gather to a certain amount, the drain valve on the drain port 7 is opened to drain the liquid;

[0042] The lower portion of the body 1 is in a tilt structure, that is, the space of the body 1 is gradually increased, and compared with the pipeline in actual use, the cross-sectional area of the body 1 is several times larger than that of the pipeline, which can reduce the speed of the steam flow entering the inside of the body 1, and is more conducive to the coalescence and sedimentation of the tiny droplets.

[0043] Reference Fig. 3 which shows a schematic diagram of the flow direction of the steam flow, and includes the flow direction of the steam flow A in the body 1 and the coalescence and sedimentation of the tiny droplets B in the body 1.

[0044] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A steam drier, comprising a body (1), the body (1) being provided with an input port (11) and an output port (12); the body (1) is divided into a first chamber (13) and a second chamber (14) by a first partition (2), the first partition (2) is provided with a first through hole (21), the input port (11), the first chamber (13), the first through hole (21), the second chamber (14) and the output port (12) are sequentially communicated, characterized in that: further comprising a cyclone structure (3), the cyclone structure (3) is matched with the input port (11) and the first chamber (13) to generate cyclone in the first chamber (13); further comprising a baffle group (4), the baffle group (4) is arranged in the second chamber (14) to form a serpentine steam passage in the second chamber (14), the first through hole (21), the steam passage and the output port (12) are sequentially communicated; the baffle group (4) comprises first baffles (41) and second baffles (42) arranged alternately; the first baffles (41) are arranged on the inner wall of the second chamber (14) and extend to the middle of the second chamber (14) to form first air vents in the second chamber (14); the first through hole (21) is arranged corresponding to the first baffles (41); the second baffles (42) are arranged on the inner wall of the second chamber (14) and extend to the middle of the second chamber (14) to form second air vents in the second chamber (14); the first air vents are arranged corresponding to the second baffles (42); the second air vents are arranged corresponding to the first baffles (41); the body (1) is further provided with a second partition (5), the second partition (5) is matched with the first partition (2) to form a third chamber (15) in the body (1); the second partition (5) is provided with a second through hole (51); the first chamber (13), the third chamber (15) and the second chamber (14) are sequentially communicated; the third chamber (15) is provided with turbulence vanes (6). The cyclone structure (3) is a turbine blade (31) arranged in the first chamber (13), the input end of the turbine blade (31) is arranged corresponding to the input port (11). The first baffles (41) comprise inclined sections (411) inclined toward the output port (12). The side of the first baffles (41) close to the middle of the second chamber (14) is provided with a first curved portion (412) curved toward the first through hole (21). The side of the second baffles (42) close to the middle of the second chamber (14) is provided with a second curved portion (421) curved toward the first through hole (21). The second partition (5) is located in the first chamber (13); the turbulence vanes (6) are a plurality of turbulence vanes arranged in a diverging manner on the first partition (2), the divergence center of which corresponds to the first through hole (21). ​ 2. The steam drier of claim 1, wherein, ​ 3. The steam drier of claim 1, wherein, ​ 4. The steam drier of claim 1, wherein, ​ 5. The steam drier of claim 1, wherein, ​ 6. The steam drier of claim 1, wherein, ​ 7. The steam drier of claim 6, wherein, One side of the length direction of the spoiler blade (6) is fixed on the first partition plate (2), and the other side extends upwardly and is provided with an arc-shaped part; The inclined directions of the plurality of spoiler blades (6) are the same, and the divergence center coincides with the center of the first through hole (21).

8. The steam drier of claim 7, wherein, The body (1) is horizontally arranged, and the input port (11) and the output port (12) are located at two ends of the length direction of the body (1); The lower side of the body (1) comprises a tilted part (16) and a horizontal part (17) connected in sequence, the lower end of the tilted part (16) is arranged close to the output port (12), and a drain port (7) is arranged on the horizontal part (17); The first partition plate (2), the second partition plate (5) and the second baffle (42) are arranged corresponding to the tilted part (16) of the body (1), and a drainage gap (18) is arranged between the lower end of the first partition plate (2), the lower end of the second partition plate (5) and the lower end of the second baffle (42) and the tilted part (16).

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