Steam turbine drain water recycling device

Abstract

The utility model relates to the technical field of drain water recycling, in particular to a steam turbine drain water recycling device which comprises a heat preservation barrel, a rotating pipe and a drain water uniformizing mechanism. A cover plate is detachably installed at the top end of the heat preservation barrel through bolts. The rotating pipe is rotationally connected with the cover plate and is driven by a driving mechanism mounted on the cover plate to rotate; the top end of the rotating pipe is rotationally connected with a water inlet pipe; the drainage uniformizing mechanism is detachably installed between the rotating pipe and the drainage pipe and is driven by the rotating pipe to rotate in the heat preservation barrel. The drainage uniformizing mechanism and the heat preservation barrel are convenient to disassemble, and the exterior of the drainage uniformizing mechanism and the interior of the heat preservation barrel are convenient to clean; and the snake-shaped drain pipe is detachably arranged, so that a flowing channel in the snake-shaped drain pipe is conveniently cleaned, incrustation is prevented from being attached to the inner wall of the snake-shaped drain pipe, the cleaning effect is further improved, the heat exchange effect is prevented from being reduced by incrustation residue, and the heat exchange efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a steam turbine drainage recycling device belongs to steam turbine drainage recycling technical field. BACKGROUND

[0002] The thermal power plant using steam as working medium inevitably produces drainage in the operation, especially in the start-stop process. The working medium loss and heat loss caused by drainage emission are important in the loss of thermal power plants.

[0003] The Chinese patent with publication number CN115597050A discloses a power plant steam turbine drainage heat recovery device, which comprises a box body, a recovery pipe is fixedly arranged at the top of the box body, a first water outlet pipe is fixedly arranged at the bottom of the box body, a water receiving cylinder is arranged on the inside upper side of the box body, a motor is fixedly arranged at the top of the box body, and a plurality of uniformly distributed cooling pipes are fixedly arranged at the bottom of the water receiving cylinder. The power plant steam turbine drainage heat recovery device can make the drainage stay in the cooling pipes for a period of time, and the cooling water in the water storage cylinder will also be mixed, thereby increasing the contact area of the cooling water and the cooling pipes, and effectively recovering the heat of the drainage.

[0004] However, the above-mentioned disclosed scheme has the following disadvantages: after long-term use, water scale will be generated on the water contact surface of the water receiving cylinder, the cooling pipe and the inner wall of the water storage cylinder, which is not convenient to disassemble and clean, thereby reducing the heat exchange efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a steam turbine drainage recycling device.

[0006] The technical scheme of the utility model is a steam turbine drainage recycling device, which comprises a heat preservation barrel, a cover plate is detachably installed at the top end of the heat preservation barrel through bolts, a drain pipe is rotatably connected to the bottom end of the heat preservation barrel, and a drain valve is arranged on the drain pipe; a rotating pipe is rotatably connected to the cover plate and driven to rotate by a driving mechanism installed on the cover plate, a water inlet pipe is rotatably connected to the top end of the rotating pipe, a fixed frame is installed at the top end of the cover plate, the fixed frame is L-shaped, and the other end of the fixed frame is connected to the outer wall of the water inlet pipe; and a drainage uniformizing mechanism is detachably installed between the rotating pipe and the drain pipe, and the drainage uniformizing mechanism is driven to rotate in the heat preservation barrel by the rotating pipe.

[0007] Preferably, the hydrophobic uniform mechanism comprises a serpentine hydrophobic pipe, which is provided with multiple groups, the multiple groups of serpentine hydrophobic pipes are uniformly distributed from top to bottom inside the heat preservation barrel, and two adjacent groups of serpentine hydrophobic pipes are connected in communication through a first connecting pipe; a second connecting pipe is connected with a water inlet end of a group of serpentine hydrophobic pipes located at the highest position, a water inlet end of the second connecting pipe is detachably connected with a water outlet end of a rotating pipe; and a third connecting pipe is connected with a water outlet end of a group of serpentine hydrophobic pipes located at the lowest position, and a water outlet end of the third connecting pipe is detachably connected with a water inlet end of a drain pipe.

[0008] Preferably, the second connecting pipe and the third connecting pipe are both provided in an L shape, the water inlet end of the second connecting pipe and the water outlet end of the third connecting pipe are both provided with a second square pipe, the water outlet end of the rotating pipe and the water inlet end of the drain pipe are both provided with a first square pipe, and the first square pipe is slidably inserted into the corresponding second square pipe.

[0009] Preferably, a support rod is detachably arranged between the two adjacent groups of serpentine hydrophobic pipes, and a plurality of driving leaves are uniformly arranged on the outer circumferential surface of the support rod.

[0010] Preferably, the upper end and the lower end of the support rod are both provided with a butt joint seat, the butt joint seat is provided in a Z shape, a fixed seat is arranged at a corresponding position of the top end or the bottom end of the serpentine hydrophobic pipe, the fixed seat is provided in a Z shape, the butt joint seat is inserted into the corresponding fixed seat and the serpentine hydrophobic pipe, and the butt joint seat is positioned at the connecting position of the fixed seat through a bolt.

[0011] Preferably, the serpentine hydrophobic pipe is composed of a pipe A part and a pipe B part arranged at the bottom end of the pipe A part, a hydrophobic flow channel is arranged on the pipe A part and the pipe B part, and a connecting seat is arranged on the side wall of the pipe A part and the pipe B part.

[0012] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects: the hydrophobic uniform mechanism of the utility model is detachable with the heat preservation barrel and the heat preservation barrel, so that the external part of the hydrophobic uniform mechanism and the internal part of the heat preservation barrel can be easily cleaned; the serpentine hydrophobic pipe is detachable, so that the internal flow channel can be easily cleaned, the scale is prevented from adhering to the inner wall of the serpentine hydrophobic pipe, the cleaning effect is further improved, and the scale residue is prevented from reducing the heat exchange effect; the hydrophobic uniform mechanism greatly improves the contact area and time of the cooling water and the hydrophobic water, and improves the heat exchange efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a schematic view of the internal structure of the heat preservation barrel of the utility model;

[0014] Figure 2 FIG. 3 is a schematic view of the structure of the hydrophobic uniform mechanism of the utility model;

[0015] Figure 3 FIG. 5 is a top view of the pipe A part of the utility model.

[0016] Figure 4 Part A structure of the utility model shows a schematic diagram.

[0017] Reference signs: 1, heat preservation bucket; 101, drain pipe; 102, first square pipe; 2, cover plate; 201, fixed frame; 202, water inlet pipe; 203, rotating pipe; 3, serpentine drain pipe; 301, pipeline A part; 302, pipeline B part; 303, connecting seat; 4, first connecting pipe; 401, second connecting pipe; 402, third connecting pipe; 403, second square pipe; 5, fixed seat; 501, butt joint seat; 502, support rod; 503, push leaf. DETAILED DESCRIPTION

[0018] Example one

[0019] As Figure 1 , Figure 2 and Figure 4 indicated, the utility model provides a steam turbine drain recycling device, including heat preservation bucket 1, rotating pipe 203 and drain uniform mechanism, heat preservation bucket 1 top end is detachably installed with cover plate 2 by bolt, heat preservation bucket 1 bottom end is rotatably connected with drain pipe 101, is provided with drain valve on drain pipe 101, rotating pipe 203 is rotatably connected cover plate 2 and is driven to rotate by drive mechanism installed on cover plate 2, and rotating pipe 203 top end extends to cover plate 2 top end and is rotatably connected with water inlet pipe 202, cover plate 2 top end is installed with fixed frame 201, fixed frame 201 is arranged as L shape, and the other end of fixed frame 201 is connected with the outer wall of water inlet pipe 202, drain uniform mechanism is detachably installed between rotating pipe 203 and drain pipe 101, and drain uniform mechanism is driven to rotate in heat preservation bucket 1 by rotating pipe 203.

[0020] Further, drain uniform mechanism includes serpentine drain pipe 3, second connecting pipe 401 and third connecting pipe 402, serpentine drain pipe 3 is provided with multiple groups, and multiple groups of serpentine drain pipe 3 are evenly distributed in heat preservation bucket 1 from top to bottom, and the first connecting pipe 4 is connected in communication between the two groups of serpentine drain pipe 3 adjacent to each other, and the first connecting pipe 4 is detachably connected with serpentine drain pipe 3 by bolt, and is convenient to detach and clean, the second connecting pipe 401 is connected with the water inlet end of the highest group of serpentine drain pipe 3, and the water inlet end of second connecting pipe 401 is detachably connected with the water outlet end of rotating pipe 203, and the third connecting pipe 402 is connected with the water outlet end of the lowest group of serpentine drain pipe 3, and the water outlet end of third connecting pipe 402 is detachably connected with the water inlet end of drain pipe 101.

[0021] Further, the second connecting pipe 401 and the third connecting pipe 402 are both provided in L shape, the water inlet end of the second connecting pipe 401 and the water outlet end of the third connecting pipe 402 are both provided with a second square pipe 403, the water outlet end of the rotating pipe 203 and the water inlet end of the drain pipe 101 are both provided with a first square pipe 102, the first square pipe 102 is slidably inserted into the corresponding second square pipe 403, the second square pipe 403 and the first square pipe 102 are both provided with a sealing seat, the two sets of sealing seats abut against each other to improve the sealing performance of the connecting position.

[0022] Further, the upper and lower adjacent two groups of serpentine drain pipes 3 are detachably provided with a supporting rod 502, which can stably support the upper and lower adjacent two groups of serpentine drain pipes 3, and a plurality of groups of pushing leaves 503 are uniformly arranged on the outer circumferential surface of the supporting rod 502; the upper and lower ends of the supporting rod 502 are both provided with a butt joint seat 501, the butt joint seat 501 is provided in Z shape, a fixed seat 5 is arranged at the corresponding position of the top end or the bottom end of the serpentine drain pipe 3, the fixed seat 5 is provided in Z shape, the butt joint seat 501 is connected with the corresponding fixed seat 5 and the serpentine drain pipe 3 in plug-in connection, and the connecting position of the butt joint seat 501 and the fixed seat 5 is limited by a bolt.

[0023] In the embodiment, a plurality of groups of serpentine drain pipes 3 are connected in sequence by a plurality of groups of first connecting pipes 4, the third connecting pipe 402 is connected with the lowest group of serpentine drain pipes 3, the second connecting pipe 401 is connected with the highest group of serpentine drain pipes 3, the drain uniform mechanism is placed in the heat preservation barrel 1, the second square pipe 403 on the third connecting pipe 402 is slidably inserted into the first square pipe 102 on the drain pipe 101, until the two sets of sealing seats abut against each other, then the first square pipe 102 at the bottom end of the rotating pipe 203 on the cover plate 2 is slidably inserted into the second square pipe 403 on the second connecting pipe 401, until the two sets of sealing seats abut against each other, at this time, the cover plate 2 abuts against the top end of the heat preservation barrel 1, the cover plate 2 and the heat preservation barrel 1 are fixedly connected by a bolt, so that the installation of the drain uniform mechanism is completed, which is convenient and fast to disassemble and assemble, and is convenient for cleaning the outer wall of the drain uniform mechanism and the inner wall of the heat preservation barrel 1 to avoid the interference of scale residues on the heat exchange efficiency;

[0024] The cooling water is injected into the inside of the heat preservation barrel 1 through the water inlet on the cover plate 2, the heat preservation barrel 1 is provided with a temperature sensor, the sensor probe extends into the heat preservation barrel 1, which is not shown, and is the prior art, the temperature of the cooling water in the heat preservation barrel 1 can be monitored in real time, the steam engine drain is introduced through the water inlet pipe 202, the drain enters the drain uniform mechanism along the water inlet pipe 202 and the rotating pipe 203, the drain sequentially moves downstream along the second connecting pipe 401, the serpentine drain pipe 3 and the first connecting pipe 4, and finally opens the drain valve on the drain pipe 101 to discharge the drain through the drain pipe 101; the drain after heat exchange can be collected and filtered by the detection box and then utilized again; the arrangement of the plurality of serpentine drain pipes 3 greatly improves the area and time of contact between the drain and the cooling water in the heat preservation barrel 1, so that the cooling water can fully absorb the heat of the drain; meanwhile, the rotating pipe 203 is driven to rotate by the driving mechanism, thereby driving the drain uniform mechanism to rotate, the plurality of driving leaves 503 on the drain uniform mechanism rotate to stir the cooling water, so that the cooling water uniformly contacts the plurality of serpentine drain pipes 3, and the heat exchange efficiency is further improved; the water in the drain uniform mechanism is monitored in real time by the temperature sensor inside the heat preservation barrel 1, and when the temperature reaches a certain temperature, the hot water in the heat preservation barrel 1 is discharged through the drain outlet for recycling.

[0025] Embodiment two

[0026] As Figures 2 to 4 shown, the steam engine drain recycling device of the utility model, compared with embodiment one, serpentine drain pipe 3 is composed of pipe A part 301 and pipe B part 302 buckled at the bottom of pipe A part 301, pipe A part 301 and pipe B part 302 are provided with drain flow channels, pipe A part 301 is provided with a slot at the edge of the drain flow channel, pipe B part 302 is provided with a convex strip at the edge of the drain flow channel, the convex strip is connected with the slot, the connection between pipe A part 301 and pipe B part 302 is provided with a sealing gasket, which improves the sealing property of the connection; pipe A part 301 and pipe B part 302 are provided with connecting seats 303 on the side walls, the connecting seats 303 on the upper and lower sides are connected through bolts, pipe A part 301 is provided with a water inlet connected with the first connecting pipe 4 or the second connecting pipe 401, and pipe B part 302 is provided with a water outlet connected with the first connecting pipe 4 or the third connecting pipe 402.

[0027] In the embodiment, the second connecting pipe 401 is detachably connected with the pipeline A part 301 through bolts, the first connecting pipe 4 is detachably connected with the pipeline A part 301 or the pipeline B part 302 through bolts, the third connecting pipe 402 is detachably connected with the pipeline B part 302 through bolts, and the pipeline A part 301 and the pipeline B part 302 are separated by taking off the bolts between the corresponding two groups of connecting seats 303 on the pipeline A part 301 and the pipeline B part 302, so that the drain flow channel inside the serpentine drain pipe 3 can be thoroughly cleaned, water scale adhered to the inner wall of the serpentine drain pipe 3 is avoided to affect the heat exchange effect, and the drain recycling efficiency is further improved.

[0028] The above has described in detail the embodiment of the utility model in combination with the drawings, but the utility model is not limited to this, and various changes can be made within the knowledge range possessed by the technical personnel in the technical field without departing from the purpose of the utility model.

Claims

1. A steam engine drain water recycling device, characterized by, The utility model relates to a heat preservation bucket (1) top end is detachably installed with the cover plate (2) through bolt, and the heat preservation bucket (1) bottom end is rotatably connected with the drain pipe (101), and the drain pipe (101) is provided with the drain valve, The rotating pipe (203) is rotatably connected with the cover plate (2) and is driven to rotate through the driving mechanism installed on the cover plate (2), and the rotating pipe (203) top end is rotatably connected with the water inlet pipe (202), and the cover plate (2) top end is installed with the fixed frame (201), and the fixed frame (201) is arranged as L shape, and the other end of the fixed frame (201) is connected with the outer wall of the water inlet pipe (202), And the uniform drainage mechanism is detachably installed between the rotating pipe (203) and the drain pipe (101), and the uniform drainage mechanism is driven to rotate in the heat preservation bucket (1) through the rotating pipe (203). The uniform drainage mechanism comprises 2. A steam turbine drain recovery device according to claim 1, wherein, The serpentine drainage pipe (3) is provided with multiple groups, and the multiple groups of serpentine drainage pipes (3) are uniformly distributed from top to bottom in the heat preservation bucket (1), and the first connecting pipe (4) is connected between the two groups of serpentine drainage pipes (3) adjacent to each other. The second connecting pipe (401) is connected with the water inlet end of the highest group of serpentine drainage pipes (3), and the water inlet end of the second connecting pipe (401) is detachably connected with the water outlet end of the rotating pipe (203); And the third connecting pipe (402) is connected with the water outlet end of the lowest group of serpentine drainage pipes (3), and the water outlet end of the third connecting pipe (402) is detachably connected with the water inlet end of the drain pipe (101). The second connecting pipe (401) and the third connecting pipe (402) are both arranged as L shape, and the water inlet end of the second connecting pipe (401) and the water outlet end of the third connecting pipe (402) are both installed with the second square pipe (403), and the water outlet end of the rotating pipe (203) and the water inlet end of the drain pipe (101) are both installed with the first square pipe (102), and the first square pipe (102) is slidably inserted with the corresponding second square pipe (403).

3. A steam turbine drain recovery device according to claim 2, wherein, The support rod (502) is installed with multiple groups of the pushing blade (503) on the outer circumferential surface.

4. A steam turbine drain recovery device according to claim 2, wherein, The support rod (502) is installed with the butt joint seat (501) on the upper and lower ends, and the butt joint seat (501) is arranged as Z shape, and the fixed seat (5) is arranged as Z shape and is installed at the corresponding position of the top end or the bottom end of the serpentine drainage pipe (3), and the butt joint seat (501) is insertedly connected with the corresponding fixed seat (5) and the serpentine drainage pipe (3), and the butt joint seat (501) is connected with the fixed seat (5) and is limited through the bolt.

5. A steam turbine drain recovery device according to claim 4, wherein, The serpentine drainage pipe (3) is composed of the pipeline A part (301) and the pipeline B part (302) buckled at the bottom end of the pipeline A part (301), and the pipeline A part (301) and the pipeline B part (302) are both provided with the drainage flow channel; 6. A steam turbine drain recovery device according to claim 1, wherein, ​

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