Drain flash tank energy dissipation structure device

Abstract

The utility model discloses a drain flash tank energy dissipation structure device, which relates to the technical field of thermal engineering and comprises a flash tank body and a water outlet pipe, a sliding cylinder is arranged on the flash tank body, a first fixing rod is slidably connected in the sliding cylinder, a spring is fixedly connected onto the first fixing rod, a first threaded rod is fixedly connected onto the spring, and a second threaded rod is fixedly connected onto the first threaded rod. A first rotating shaft is fixedly connected to the first fixing rod, a first fan blade is fixedly connected to the first rotating shaft, a second sliding shaft is fixedly connected to the end, away from the first rotating shaft, of the first fan blade, the second sliding shaft is slidably connected into the flash tank body, a sliding frame is slidably connected into the flash tank body, and a sliding groove is formed in the sliding frame; the first sliding shafts are slidably connected into the sliding grooves in the sliding frames, the second fan blades are fixedly connected to the first sliding shafts, the energy dissipation effect is effectively improved, similar blocking risks do not exist in the blade structure, and the problem that in the background technology, hole channels are prone to being blocked in the prior art is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal engineering, in particular to an energy dissipation structure device of a hydrophobic expansion vessel. Background Art

[0002] The drain expansion tank is a device used to receive and separate steam-water mixtures. In steam power plants such as the steam turbine system of thermal power plants, drains discharged from steam pipes, steam turbines and other equipment contain steam and condensate and will enter the drain expansion tank.

[0003] In steam systems, the steam-water mixture received by the hydrophobic expansion tank often has high velocity and energy. When this steam-water mixture rushes into the expansion tank at high speed, it will generate a strong impact force on the inner wall of the tank, causing damage to the tank.

[0004] The existing technology uses porous materials at the inlet or internal channels to buffer the soda-water mixture. When the fluid passes through the porous material, the friction and resistance of the pores reduce the fluid speed and consume energy. However, in actual application, the porous material is prone to clogging, especially when processing soda-water mixtures containing impurities. Once the pores are clogged, the fluid resistance will increase sharply, affecting the normal hydrophobic and buffering process. Utility Model Content

[0005] The purpose of the present invention is to provide an energy dissipation structure device for a hydrophobic expansion vessel to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hydrophobic expansion tank energy dissipation structure device, comprising an expansion tank body and a water outlet pipe fixedly connected to the bottom of the expansion tank body, wherein the expansion tank body is provided with an energy dissipation component;

[0007] The energy dissipation assembly includes a slide cylinder, a first fixed rod is slidably connected to the slide cylinder, a spring is fixedly connected to the first fixed rod, the first threaded rod is fixedly connected to the spring, the first fixed rod is fixedly connected to the first rotating shaft, the first rotating shaft is fixedly connected to the first fan blade, an end of the first fan blade away from the first rotating shaft is fixedly connected to the second sliding shaft, the second sliding shaft is slidably connected to the expander body, a slide frame is slidably connected to the expander body, a sliding groove is provided in the slide frame, the first sliding shaft is slidably connected to the sliding groove in the slide frame, and the first sliding shaft is fixedly connected to the second fan blade.

[0008] As a preferred embodiment, a sliding groove is opened in the expansion container body, the sliding frame is slidably connected to the sliding groove in the sliding frame, and the second fan blade and the first fan blade are mirror-imaged with the water outlet pipe as the center line.

[0009] The above technical solution is adopted: by providing a sliding groove, when in use, the sliding frame slides in the sliding groove, and the sliding groove acts as a limit to prevent the sliding frame from directly contacting the first fan blade. The first fan blade and the second fan blade are in too close contact, resulting in the inability of steam to pass normally. The second fan blade and the first fan blade are installed in opposite directions. When the first fan blade and the second fan blade rotate, the direction of the airflow will be changed. When the steam-water mixture passes through the layered and staggered blades, each layer of blades will change the flow direction and speed of the fluid. After passing through the first fan blade, part of the kinetic energy of the fluid is consumed. Then, when entering the second layer of blades, due to the staggered arrangement of the blades, the flow direction of the fluid changes again, and the collision angle and velocity distribution with the second fan blade are different from those of the first layer, so that the energy of the fluid is dispersed and consumed in different directions.

[0010] As a preferred embodiment, an arc-shaped member is fixedly connected to a side of the second fan blade close to the first fan blade.

[0011] By adopting the above technical solution, the arc-shaped member is provided to guide the fluid to form a specific flow pattern, increase the turbulence of the fluid, and thus improve energy consumption and dispersion.

[0012] As a preferred embodiment, an opening is formed on one end of the expander body away from the arc-shaped piece, a second threaded rod is threadedly connected to the opening on the expander body, and a sealing block is fixedly connected to the second threaded rod.

[0013] The above technical solution is adopted: by providing an opening and a sealing block, it is convenient to install the air pipe on the expander body, so as to facilitate the output of steam.

[0014] As a preferred embodiment, one end of the first threaded rod away from the expander body is fixedly connected to a grip block, and the first threaded rod is threadedly connected to the expander body.

[0015] The above technical solution is adopted: by providing a grip block, when in use, the grip block can be twisted by external force, so that the first threaded rod drives the first fixed rod to slide in the expander body, so that the first rotating shaft rotates, driving the first fan blade to rotate, so that the blade can adjust the angle of the blade according to different working conditions such as hydrophobic flow, pressure, temperature, etc. Under low flow conditions, the blade can be adjusted to a smaller angle to reduce the resistance of the fluid and ensure the smooth passage of the fluid. Under high flow conditions, the blade can be adjusted to a larger angle to increase energy consumption and dispersion.

[0016] As a preferred embodiment, a gas pipe is fixedly connected to the expander body.

[0017] Adopting the above technical solution: when in use, steam is input into the expander body through the gas pipe.

[0018] As a preferred embodiment, a second fixing rod is fixedly connected to the sliding frame, an end of the second fixing rod away from the sliding frame is rotatably connected to a second rotating shaft, a spring is rotatably connected to the second rotating shaft, and the spring is slidably connected to the expander body.

[0019] The above technical solution is adopted: when in use, when the airflow suddenly increases, the second fan blade will drive the sliding frame to move toward the side close to the first fan blade under the action of the airflow, so that the second fixed rod will be driven to move, and the spring will be driven to move toward the side close to the slide cylinder, so that the second rotating shaft gradually resists the slide. At this time, the movement speed of the sliding frame slows down, which can avoid the first fan blade and the second fan blade from being in too close contact, resulting in complete blocking of the steam. The sliding of the sliding frame can buffer the sudden increase in air pressure.

[0020] Compared with the prior art, the advantages and positive effects of the present invention are:

[0021] In the utility model, the angle of the first blade can be adjusted by using a grip block, so that it can be flexibly adjusted according to different working conditions such as hydrophobic flow, pressure, temperature, etc. Through the staggered arrangement and rotation design of the first blade and the second blade, when the soda-water mixture passes through, each layer of blades can change the flow direction and speed of the fluid, so that the energy of the fluid is dispersed and consumed in different directions, effectively improving the energy dissipation effect, and there is no similar blockage risk in the blade structure. The rotation and sliding design of the blade is based on the principle of mechanical motion, is not affected by impurities in the fluid, and can continuously and stably dissipate energy and buffer the soda-water mixture, ensuring that the fluid resistance of the hydrophobic expansion container will not increase sharply due to blockage during long-term operation, solving the problem of easy blockage of the existing technical channels in the background technology.

[0022] In the utility model, when the steam suddenly increases, the second fan blade drives the slide frame to move, and the cooperation of the spring and the second rotating shaft can slow down the movement speed of the slide frame, avoiding the first fan blade and the second fan blade from contacting too closely and completely blocking the steam, effectively buffering the sudden increase in air pressure, and making the equipment more adaptable and stable when facing changes in working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the hydrophobic expansion tank energy dissipation structure device.

[0024] Figure 2 This is a schematic diagram of the cross-sectional structure of the expansion tank body of the hydrophobic expansion tank energy dissipation structure device.

[0025] Figure 3 This is a schematic diagram of the position of the first threaded rod of the energy dissipation structure of the hydrophobic expansion tank.

[0026] Figure 4This is a schematic diagram of the sliding frame position of the hydrophobic expansion tank energy dissipation structure device.

[0027] Figure 5 Schematic diagram of the spring position of the energy dissipation structure of the hydrophobic expansion tank

[0028] Numbers in the figure:

[0029] 1. Expander body;

[0030] 2. Energy dissipation assembly; 21. Slide; 22. First fan blade; 23. First rotating shaft; 24. Slide frame; 25. First sliding shaft; 26. Second fan blade; 27. Arc-shaped member; 28. First fixing rod; 29. ​​Spring; 210. Second sliding shaft;

[0031] 3. Grip block; 31. First threaded rod; 32. Gas pipe;

[0032] 4. Sealing block; 41. Second threaded rod;

[0033] 5. Water outlet pipe;

[0034] 6. Second fixing rod; 61. Second rotating shaft; 62. Shrapnel. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 5 As shown, the hydrophobic expansion tank energy dissipation structure device includes an expansion tank body 1 and a water outlet pipe 5 fixedly connected to the bottom of the expansion tank body 1, and an energy dissipation component 2 is provided on the expansion tank body 1;

[0037] The energy dissipation assembly 2 includes a slide 21, a first fixed rod 28 is slidably connected to the slide 21, a spring 29 is fixedly connected to the first fixed rod 28, a first threaded rod 31 is fixedly connected to the spring 29, a first rotating shaft 23 is fixedly connected to the first fixed rod 28, a first fan blade 22 is fixedly connected to the first rotating shaft 23, an end of the first fan blade 22 away from the first rotating shaft 23 is fixedly connected to the second sliding shaft 210, the second sliding shaft 210 is slidably connected to the expander body 1, a slide frame 24 is slidably connected to the expander body 1, a sliding groove is provided in the slide frame 24, a first sliding shaft 25 is slidably connected to the sliding groove in the slide frame 24, and a second fan blade 26 is fixedly connected to the first sliding shaft 25;

[0038] In the present invention, the angle of the first blade 22 can be adjusted by using the grip block 3, so that it can be flexibly adjusted according to different working conditions such as hydrophobic flow, pressure, temperature, etc. Through the staggered arrangement and rotation design of the first blade 22 and the second blade 26, when the soda-water mixture passes through, each layer of blades can change the flow direction and speed of the fluid, so that the energy of the fluid is dispersed and consumed in different directions, effectively improving the energy dissipation effect, and there is no similar blockage risk in the blade structure. The rotation and sliding design of the blade is based on the principle of mechanical motion, is not affected by impurities in the fluid, and can continuously and stably dissipate energy and buffer the soda-water mixture, ensuring that the fluid resistance will not increase sharply due to blockage during long-term operation of the hydrophobic expansion container, solving the problem that the existing technical channels in the background technology are easily blocked.

[0039] Further, such as Figures 1 to 5 As shown, a sliding groove is provided within the expander body 1, and a sliding frame 24 is slidably connected to the sliding groove within the sliding frame 24. The second blade 26 is arranged in a mirror image with the first blade 22, with the outlet pipe 5 as the centerline. Due to the provision of the sliding groove, when in use, the sliding frame 24 slides within the sliding groove, and the sliding groove acts as a limiter to prevent the sliding frame 24 from directly contacting the first blade 22. If the first blade 22 and the second blade 26 are in too close contact, steam will not be able to pass through normally. The second blade 26 and the first blade 22 are installed in opposite directions. When the first blade 22 and the second blade 26 rotate, the direction of the airflow will be changed. When the steam-water mixture passes through the layered and staggered blades, each layer of blades will change the flow direction and velocity of the fluid. After passing through the first blade 22, some of the kinetic energy of the fluid is consumed. Then, when entering the second layer of blades, due to the staggered arrangement of the blades, the flow direction of the fluid changes again. The collision angle and velocity distribution with the second blade 26 are different from those of the first layer, so that the energy of the fluid is dispersed and consumed in different directions.

[0040] A curved member 27 is fixedly connected to one side of the second blade 26 near the first blade 22. The curved member 27 can guide the fluid to form a specific flow pattern, increase the turbulence of the fluid, and thus improve energy consumption and dispersion.

[0041] An opening is formed on one end of the expander body 1 away from the arc-shaped member 27. A second threaded rod 41 is threadedly connected to the opening of the expander body 1. A sealing block 4 is fixedly connected to the second threaded rod 41. The provision of the opening and the sealing block 4 facilitates installation of an air pipe on the expander body 1 and facilitates steam output.

[0042] One end of the first threaded rod 31 away from the expander body 1 is fixedly connected to a grip block 3. The first threaded rod 31 is threadedly connected to the expander body 1. By providing the grip block 3, when in use, the grip block 3 can be twisted by external force, so that the first threaded rod 31 drives the first fixed rod 28 to slide in the expander body 1, so that the first rotating shaft 23 rotates, and the first fan blade 22 rotates, so that the blade can adjust the angle of the blade according to different working conditions such as hydrophobic flow rate, pressure, temperature, etc. Under low flow conditions, the blade can be adjusted to a smaller angle to reduce the resistance of the fluid and ensure the smooth passage of the fluid. Under high flow conditions, the blade can be adjusted to a larger angle to increase energy consumption and dispersion.

[0043] The expander body 1 is fixedly connected to an air delivery pipe 32 . When in use, steam is input into the expander body 1 through the air delivery pipe 32 .

[0044] The above scheme has not yet proposed how to deal with the situation of sudden increase in steam, such as Figures 2 to 5 As shown, a second fixing rod 6 is fixedly connected to the slide frame 24, and an end of the second fixing rod 6 away from the slide frame 24 is rotatably connected to a second rotating shaft 61, and a spring piece 62 is rotatably connected to the second rotating shaft 61. The spring piece 62 is slidably connected in the expander body 1. During use, when the airflow suddenly increases, the second fan blade 26 will drive the slide frame 24 to move toward the side close to the first fan blade 22 under the action of the airflow, so that the second fixing rod 6 will be driven to move, and the spring piece 62 will be driven to move toward the side close to the slide cylinder 21, so that the second rotating shaft 61 gradually resists and slides. At this time, the movement speed of the slide frame 24 slows down, which can avoid the first fan blade 22 and the second fan blade 26 from being in too close contact, resulting in complete blocking of the steam. The sliding of the slide frame 24 can buffer the sudden increase in air pressure.

[0045] Working principle: Figure 1 - Figure 5 As shown, when in use, first unscrew the second threaded rod 41, connect the air outlet pipe to the opening on the expander body 1, and connect the air inlet pipe to the air delivery pipe 32;

[0046] After the steam enters the expander body 1, it drives the first fan blade 22 and the second fan blade 26 to rotate. When the first fan blade 22 rotates, it drives the second sliding shaft 210 to slide in the sliding groove on the expander body 1. The second sliding shaft 210 can limit the first fan blade 22 to prevent the first fan blade 22 from being moved under the action of the airflow. The second fan blade 26 drives the first sliding shaft 25 to slide on the sliding frame 24. At this time, the sliding frame 24 will not move under the action of the sliding block 62 and the second fixing rod 6;

[0047] When the steam suddenly increases, during use, when the airflow suddenly increases, the second fan blade 26 will drive the slide frame 24 to move to the side close to the first fan blade 22 under the action of the airflow, so that the second fixing rod 6 will be driven to move, and the spring piece will be driven to move to the side close to the slide cylinder 21, so that the second rotating shaft 61 gradually presses against the slide, and at this time the movement speed of the slide frame 24 slows down, which can prevent the first fan blade 22 from contacting the second fan blade 26 too closely, resulting in complete blocking of the steam, and the sliding of the slide frame 24 can buffer the sudden increase in air pressure;

[0048] After passing through the energy dissipation, the steam flows out from the opening on the expansion vessel body 1, and the separated water leaks out through the water outlet pipe 5.

[0049] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments with equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A hydrophobic expansion tank energy dissipation structure device, comprising an expansion tank body (1) and a water outlet pipe (5) fixedly connected to the bottom of the expansion tank body (1), characterized in that: An energy dissipation component (2) is provided on the expander body (1); The energy dissipation component (2) includes a slide (21), a first fixed rod (28) is slidably connected in the slide (21), a spring (29) is fixedly connected to the first fixed rod (28), a first threaded rod (31) is fixedly connected to the spring (29), a first rotating shaft (23) is fixedly connected to the first fixed rod (28), a first fan blade (22) is fixedly connected to the first rotating shaft (23), an end of the first fan blade (22) away from the first rotating shaft (23) is fixedly connected to a second sliding shaft (210), the second sliding shaft (210) is slidably connected in the expander body (1), a sliding frame (24) is slidably connected in the expander body (1), a sliding groove is provided in the sliding frame (24), a first sliding shaft (25) is slidably connected in the sliding groove in the sliding frame (24), and a second fan blade (26) is fixedly connected to the first sliding shaft (25).

2. The hydrophobic expansion vessel energy dissipation structure device according to claim 1, characterized in that: A sliding groove is provided in the expander body (1), the sliding frame (24) is slidably connected to the sliding groove in the sliding frame (24), and the second fan blade (26) and the first fan blade (22) are arranged in a mirror image with the water outlet pipe (5) as the center line.

3. The hydrophobic expansion vessel energy dissipation structure device according to claim 1, characterized in that: An arc-shaped member (27) is fixedly connected to a side of the second fan blade (26) close to the first fan blade (22).

4. The hydrophobic expansion vessel energy dissipation structure device according to claim 3, characterized in that: An opening is provided on one end of the expander body (1) away from the arc-shaped member (27), a second threaded rod (41) is threadedly connected to the opening on the expander body (1), and a sealing block (4) is fixedly connected to the second threaded rod (41).

5. The hydrophobic expansion vessel energy dissipation structure device according to claim 3, characterized in that: One end of the first threaded rod (31) away from the expander body (1) is fixedly connected to a gripping block (3), and the first threaded rod (31) is threadedly connected to the expander body (1).

6. The hydrophobic expansion vessel energy dissipation structure device according to claim 1, characterized in that: The expander body (1) is fixedly connected to a gas delivery pipe (32).

7. The hydrophobic expansion vessel energy dissipation structure device according to claim 1, characterized in that: A second fixing rod (6) is fixedly connected to the sliding frame (24); an end of the second fixing rod (6) away from the sliding frame (24) is rotatably connected to a second rotating shaft (61); a spring piece (62) is rotatably connected to the second rotating shaft (61); and the spring piece (62) is slidably connected to the expansion container body (1).

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