Desulfurization wastewater multi-effect flash evaporation steam cooling device

Abstract

The invention discloses a multi-effect flash steam cooling device for desulfurization wastewater, and belongs to the technical field of water treatment. The device comprises a flash evaporation assembly, a cooling assembly and a cooling assembly, the flash evaporation assembly, the cooling assembly and the cooling assembly are communicated through pipelines, the cooling assembly comprises a cooling box, a plurality of spraying pipes are fixedly connected in the cooling box, a plurality of low-pressure condensate water pipes are fixedly connected in the cooling box, and the low-pressure condensate water pipes are communicated with the spraying pipes. A plurality of disc-shaped heat exchange tubes are further fixedly connected into the cooling box, a flow equalizing plate is further fixedly connected into the cooling box, and a plurality of flow equalizing holes are formed in the flow equalizing plate. Under the action of the moving plate and the moving holes, before cooling operation is carried out, the position of the moving plate and the coincident area of the moving holes in the upper side of the moving plate and the flow equalizing holes in the upper side of the flow equalizing plate are adjusted, that is, the actual working hole diameter of the flow equalizing holes is adjusted, and then different steam flows are met; and the flow equalizing operation of the steam can be well completed.

Description

Technical Field

[0001] The invention relates to the technical field of rapid heat dissipation components, and in particular to a multi-effect flash steam cooling device for desulfurization wastewater. Background Art

[0002] In the prior art, the application with publication number CN220334848U discloses a multi-effect flash steam cooling device for desulfurization wastewater, which respectively inputs secondary steam and condensate into a cooling box through a secondary steam pipe and a low-pressure condensate pipe, sprays cooling water through a spray pipe and low-temperature liquefied gas in a disc-shaped heat exchange tube to exchange heat and cool the secondary steam and condensate, thereby avoiding white pollution caused by the discharge of secondary steam. The secondary steam is guided by a flow equalizing plate to improve the cooling effect of the secondary steam, and the cooling water is exchanged and cooled by a meandering heat exchange tube to achieve cooling water. The recycling of water saves water resources, and the cooperation of the liquid level meter and the solenoid valve can control the liquid level height in the cooling box. However, in the actual working process, the diameter of the flow equalizing hole inside the started flow equalizing plate is fixed and cannot be adjusted according to the actual steam flow rate, resulting in a general flow equalization effect. In addition, during the heat exchange process, water droplets will form on the outer wall of the disc-shaped heat exchange tube during actual use. These water droplets cannot be cleaned in time, and the water droplets on the outside form new heat exchange products, which will reduce the overall heat exchange effect. Therefore, a multi-effect flash steam cooling device for desulfurization wastewater is provided. Summary of the invention

[0003] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a desulfurization wastewater multi-effect flash steam cooling device.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: A multi-effect flash steam cooling device for desulfurization wastewater comprises a flash assembly, a cooling assembly and a temperature reduction assembly, wherein the flash assembly, the cooling assembly and the temperature reduction assembly are connected by a pipeline, the cooling assembly comprises a cooling box, a plurality of spray pipes are fixedly connected in the cooling box, a plurality of low-pressure condensate water pipes are fixedly connected in the cooling box, a plurality of disc-shaped heat exchange tubes are also fixedly connected in the cooling box, a flow equalizing plate is also fixedly connected in the cooling box, a plurality of flow equalizing holes are opened in the flow equalizing plate, a movable plate is also slidably connected in the cooling box, and a plurality of movable holes are opened in the movable plate.

[0005] Preferably, a cleaning assembly is installed in the cooling box, and the cleaning assembly includes a cleaning frame slidably connected to the side wall of the cooling box, and a plurality of cleaning rods are evenly and fixedly connected in the cleaning frame, and two power plates are symmetrically fixedly connected to the lower side of one of the cleaning rods.

[0006] Preferably, motors are fixedly connected to both sides of the cooling box, two output ends of the motors are fixedly connected to rotating shafts, and a plurality of fan blades are fixedly connected to the outer sides of the rotating shafts.

[0007] Preferably, a rotating rod is fixedly connected to the outer side of the rotating shaft, and the rotating rod and the power plate are against each other.

[0008] Preferably, the side wall of the movable plate is rotatably connected with a threaded rod, and the threaded rod is threadedly connected to the side wall of the cooling box.

[0009] The beneficial effects of the present invention are: first, under the action of the movable plate and the movable hole, before performing the cooling operation, the position of the movable plate is adjusted, and the overlapping area of ​​the movable hole on the upper side of the movable plate and the equalizing hole on the upper side of the equalizing plate is adjusted, that is, the size of the actual working aperture of the equalizing hole is adjusted, so as to meet different steam flow rates, and the equalizing operation of the steam can be completed well. When performing the cooling operation, the motor is started, and the motor drives the fan blades to rotate, so as to increase the overall flow speed of the steam, thereby accelerating the heat exchange effect and improving the overall working effect. At the same time, the cleaning frame and the cleaning rod can be shaken back and forth, so as to better complete the cleaning operation of the water droplets on the outside of the disc-shaped heat exchange tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of a multi-effect flash steam cooling device for desulfurization wastewater proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a cooling box in a desulfurization wastewater multi-effect flash steam cooling device proposed by the present invention; Figure 3 Schematic diagram of the structure of the current balancing plate and the moving plate in an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the cleaning component in an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the motor and the power board in the embodiment of the present invention.

[0011] In the figure: 1 flash assembly; 2 cooling assembly; 21 cooling box; 22 low-pressure condensate pipe; 23 disc heat exchange tube; 24 flow equalizing plate; 25 spray pipe; 26 moving plate; 261 moving hole; 27 threaded rod; 28 cleaning assembly; 281 cleaning frame; 282 spring; 283 cleaning rod; 284 power plate; 29 flow equalizing hole; 3 cooling assembly; 4 motor; 5 fan blade; 6 rotating rod. DETAILED DESCRIPTION

[0012] See also Figure 1-Figure 5A multi-effect flash steam cooling device for desulfurization wastewater includes a flash assembly 1, a cooling assembly 2 and a cooling assembly 3. The flash assembly 1, the cooling assembly 2 and the cooling assembly 3 are connected by pipelines. The cooling assembly 2 includes a cooling box 21. A plurality of spray pipes 25 are fixedly connected to the upper side of the cooling box 21. A plurality of low-pressure condensate pipes 22 are fixedly connected to the cooling box 21. The plurality of low-pressure condensate pipes 22 are arranged at the lower side of the spray pipe 25. A plurality of disc-shaped heat exchange pipes 23 are also fixedly connected to the cooling box 21. , a plurality of disc-shaped heat exchange tubes 23 are arranged at the lower side of the low-pressure condensate water tube 22, a flow equalizing plate 24 is fixedly connected in the cooling box 21, a plurality of flow equalizing holes 29 are evenly opened on the upper side of the flow equalizing plate 24, the flow equalizing plate 24 is located at the lower side of the disc-shaped heat exchange tube 23, a movable plate 26 is slidably connected in the cooling box 21, the movable plate 26 is located at the upper side of the flow equalizing plate 24 and abuts against the flow equalizing plate 24, a plurality of movable holes 261 are evenly opened on the upper side of the movable plate 26, and the plurality of movable holes 261 and the flow equalizing holes 29 are arranged relatively; First, the flash component 1 is cooled and cooled by using the cooling component 2 and the cooling component 3. This is a technical means used in the comparative document and belongs to the prior art. No redundant description is given. Before the cooling and cooling operation, the position of the movable plate 26 is adjusted, and the overlapping area of ​​the movable hole 261 on the upper side of the movable plate 26 and the equalizing hole 29 on the upper side of the equalizing plate 24 is adjusted, that is, the actual working aperture size of the equalizing hole 29 is adjusted, so as to meet different steam flow rates and complete the equalizing operation of the steam well. A cleaning assembly 28 for cleaning water drops on the outer wall of the disc-shaped heat exchange tube 23 is installed in the cooling box 21. The cleaning assembly 28 includes a cleaning frame 281 slidably connected to the side wall of the cooling box 21. The cleaning frame 281 is slidably connected to the cooling box 21, and the cleaning frame 281 is connected to the side wall of the cooling box 21 through a spring 282. The cleaning frame 281 is located between the disc-shaped heat exchange tube 23 and the movable plate 26. A plurality of cleaning rods 283 are evenly fixedly connected in the cleaning frame 281. The plurality of cleaning rods 283 and the disc-shaped heat exchange tube 23 are against each other. Two power plates 284 are symmetrically fixedly connected to the lower side of one of the cleaning rods 283. First, under the action of the spring 282, after working for a period of time, the cleaning frame 281 moves back and forth, thereby cleaning the water droplets on the outside of the disc-shaped heat exchange tube 23, thereby ensuring the heat exchange operation and the cooling effect; Motors 4 are fixedly connected to both sides of the cooling box 21. The two motors 4 are located between the cleaning frame 281 and the movable plate 26. The output ends of the two motors 4 are fixedly connected to a rotating shaft, and a plurality of fan blades 5 are fixedly connected to the outer side of the rotating shaft. When the motor 4 is started, the motor 4 drives the fan blades 5 to rotate, thereby increasing the overall flow speed of the steam, thereby accelerating the heat exchange effect and improving the overall working effect. The outer side of the rotating shaft is also fixedly connected with a rotating rod 6, and the rotating rod 6 and the power plate 284 are against each other. When the rotating shaft rotates, the rotating shaft drives the rotating rod 6 to rotate. When the rotating rod 6 and the power plate 284 are against each other, the power plate 284 is driven to move, and then the cleaning rod 283 and the cleaning frame 281 are driven to move. When the rotating rod 6 and the power plate 284 are disconnected, under the action of the spring 282, the cleaning rod 283 and the cleaning frame 281 return to their original positions, and then the cleaning frame 281 and the cleaning rod 283 can be shaken back and forth, so as to better complete the cleaning operation of the water droplets on the outer side of the disc-shaped heat exchange tube 23; The side wall of the movable plate 26 is rotatably connected with a threaded rod 27, which passes through the side wall of the cooling box 21 and is threadedly connected to the side wall of the cooling box 21. The threaded rod 27 is rotated to move the threaded rod 27 relative to the cooling box 21, thereby completing the adjustment operation of the actual working aperture size of the flow equalizing hole 29.

[0013] In the present invention, first, the flash component 1 is cooled and cooled by using the cooling component 2 and the cooling component 3. This is a technical means used in the comparative document and belongs to the prior art. No redundant description is given. Before the cooling and cooling operation is performed, the threaded rod 27 is rotated to move the threaded rod 27 relative to the cooling box 21, and the position of the movable plate 26 is adjusted. The area overlapped by the movable hole 261 on the upper side of the movable plate 26 and the equalizing hole 29 on the upper side of the equalizing plate 24 is adjusted, that is, the size of the actual working aperture of the equalizing hole 29 is adjusted to meet different steam flow rates, and the equalizing operation of the steam can be well completed. When the cooling and cooling operation is performed, the motor 4 is started, and the motor 4 drives the fan blade 5 The rotating shaft 280 rotates to increase the overall flow rate of the steam, thereby accelerating the heat exchange effect and improving the overall working effect. During the rotation of the shaft, the shaft drives the rotating rod 6 to rotate. When the rotating rod 6 and the power plate 284 are against each other, the power plate 284 is driven to move, thereby driving the cleaning rod 283 and the cleaning frame 281 to move. When the rotating rod 6 and the power plate 284 are disconnected, under the action of the spring 282, the cleaning rod 283 and the cleaning frame 281 return to their original positions, and then the cleaning frame 281 and the cleaning rod 283 can be swung back and forth, which can better complete the cleaning operation of the water droplets on the outside of the disc-shaped heat exchange tube 23 and ensure the normal heat exchange effect of the disc-shaped heat exchange tube 23.

Claims

1. A multi-effect flash steam cooling device for desulfurization wastewater, comprising a flash component (1), a cooling component (2) and a temperature reduction component (3), wherein the flash component (1), the cooling component (2) and the temperature reduction component (3) are connected by a pipeline, characterized in that: The cooling assembly (2) comprises a cooling box (21), a plurality of spray pipes (25) are fixedly connected to the cooling box (21), a plurality of low-pressure condensate water pipes (22) are fixedly connected to the cooling box (21), a plurality of disc-shaped heat exchange tubes (23) are also fixedly connected to the cooling box (21), a flow equalizing plate (24) is also fixedly connected to the cooling box (21), a plurality of flow equalizing holes (29) are formed on the flow equalizing plate (24), and a movable plate (26) is also slidably connected to the cooling box (21), a plurality of movable holes (261) are formed on the movable plate (26).

2. A desulfurization wastewater multi-effect flash steam cooling device according to claim 1, characterized in that: A cleaning assembly (28) is installed in the cooling box (21), and the cleaning assembly (28) comprises a cleaning frame (281) slidably connected to the side wall of the cooling box (21), and a plurality of cleaning rods (283) are evenly and fixedly connected in the cleaning frame (281), wherein two power plates (284) are symmetrically and fixedly connected to the lower side of one of the cleaning rods (283).

3. A desulfurization wastewater multi-effect flash steam cooling device according to claim 2, characterized in that: Motors (4) are fixedly connected to both sides of the cooling box (21), and output ends of the two motors (4) are fixedly connected to rotating shafts, and the outer sides of the rotating shafts are fixedly connected to a plurality of fan blades (5).

4. A desulfurization wastewater multi-effect flash steam cooling device according to claim 3, characterized in that: The outer side of the rotating shaft is also fixedly connected to a rotating rod (6), and the rotating rod (6) and the power plate (284) are in contact with each other.

5. A desulfurization wastewater multi-effect flash steam cooling device according to claim 1, characterized in that: The side wall of the movable plate (26) is rotatably connected to a threaded rod (27), and the threaded rod (27) is threadedly connected to the side wall of the cooling box (21).

Images