Device for eliminating white smoke of desulfurized flue gas

Abstract

The utility model belongs to the technical field of white smoke elimination devices, and particularly relates to a device for eliminating white smoke of desulfurized flue gas, which comprises an exhaust pipe, and the upper surface of the exhaust pipe is fixedly connected with a mounting plate through a flange. The device is fixed on an exhaust pipe through a mounting plate, a hoop is matched with a supporting rod to form triangular support for the mounting plate and the exhaust pipe, at the moment, the exhaust pipe discharges smoke into a smoke purifying pipe through a connecting pipe, a water pumping pipe is connected with an external cold water source, water is pumped into a cooling pipe through a water pump, and when the smoke passes through the surface of the cooling pipe, the smoke is cooled. The smoke continuously floats upwards; the demister can reduce the discharge of moisture in the smoke and improve the white elimination effect; the water drops on the surface of the cooling pipe directly fall down through gravity and are collected on the lower side of the smoke purifying pipe; the water is guided into a proper container through the circulating pipe; the contact area of the flue gas and the cooling pipe is increased, the cooling effect is good, frequent water taking operation is not needed, and simplicity is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of whitening devices, in particular to a device for whitening desulfurization flue gas. Background Art

[0002] The hot and humid air at the cooling tower outlet is in a saturated or nearly saturated state. After leaving the cooling tower and mixing with the surrounding low-temperature air, part of the water vapor in the hot and humid air turns into liquid, thus forming white smoke.

[0003] China Public Invention: CN202222268276.0 relates to a whitening heat exchange device, in particular to a flue gas whitening heat exchange device. The utility model provides a flue gas whitening heat exchange device that has the function of collecting water droplets generated by the flue gas whitening heat exchange and can save water resources. The utility model provides such a flue gas whitening heat exchange device, comprising: an exhaust pipe, the top of the connecting pipe is connected to and connected with the exhaust pipe; a water pump, a water pump is fixedly connected to the outer side of the lower left part of the exhaust pipe; a cooling pipe, the output end of the water pump is connected to the cooling pipe, the cooling pipe passes through the lower part of the exhaust pipe, and the upper end of the cooling pipe passes through the upper left part of the exhaust pipe. The warm water discharged from the external water pipe at the upper end of the cooling pipe of the utility model can be reused for circulation after cooling, thereby saving water resources;

[0004] The device collects water through a water collecting box, but the flue gas below is blocked when it passes through the water collecting box, resulting in poor cooling effect of the cooling pipe. In addition, the water collecting box needs to be frequently removed and water is guided, which is quite troublesome.

[0005] Therefore, a device for removing whiteness from desulfurized flue gas is proposed. Utility Model Content

[0006] The purpose of the present invention is to provide a device for removing white dust from desulfurized flue gas, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for desulfurization flue gas whitening, comprising an exhaust pipe, the upper surface of the exhaust pipe is fixedly connected to a mounting plate via a flange, a connecting pipe is fixedly connected to the right side of the upper surface of the mounting plate, the upper end of the connecting pipe is connected to a clean smoke pipe, the lower end of the clean smoke pipe is fixedly connected to the left side of the upper surface of the mounting plate, a cooling pipe is fixedly connected to the inner side wall of the clean smoke pipe, a water pump is provided on the left side of the clean smoke pipe, the water outlet end of the water pump is connected to the lower end of the cooling pipe, the water pumping end of the water pump is connected to a water pumping pipe, and a circulation pipe is fixedly connected to the left side of the inner side wall of the mounting plate.

[0008] As a further preferred embodiment of the present technical solution: a valve is installed on the outer side wall of the circulation pipe.

[0009] As a further preferred embodiment of the present technical solution: the outer side wall of the smoke clean pipe is fixedly connected to a support plate, and the water pump is installed on the upper surface of the support plate.

[0010] As a further preferred embodiment of the present technical solution: a demister is fixedly connected to the inner wall of the smoke clean pipe.

[0011] As a further preferred embodiment of the present technical solution: a pair of fixing rods are fixedly connected to the lower surface of the mounting plate, the outer side walls of the fixing rods are rotatably connected to support rods, and the lower ends of the support rods are fixedly connected to clamps.

[0012] As a further preferred embodiment of the present technical solution: a threaded rod is inserted into the inner side wall of the clamp, and a nut is threadedly connected to the outer side wall of the threaded rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] When the utility model is used, the device is fixed on the exhaust pipe by the mounting plate, and the mounting plate and the exhaust pipe are supported by the clamp and the support rod to form a triangular support. At this time, the exhaust pipe discharges the flue gas into the clean smoke pipe through the connecting pipe, and the water pump is connected to the external cold water source. Water is pumped into the cooling pipe through the water pump. When the flue gas passes through the surface of the cooling pipe, it is liquefied by contact with the cold to form water droplets, which reduces the temperature of the flue gas and achieves the effect of whitening. The flue gas continues to float upward, and the demister can reduce the discharge of moisture in the flue gas and improve the whitening effect. The water droplets on the surface of the cooling pipe fall directly by gravity and are collected on the lower side of the clean smoke pipe. The water is guided to a suitable container through the circulation pipe, which increases the contact area between the flue gas and the cooling pipe, has a better cooling effect, does not require frequent water extraction operations, and is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front structural diagram of the present invention;

[0016] Figure 2 This is a schematic cross-sectional view of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the water pump, water pumping pipe and circulation pipe in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the fixing rod, support rod and clamp in the utility model.

[0019] In the figure: 1. Exhaust pipe; 2. Mounting plate; 4. Connecting pipe; 5. Smoke clean pipe; 6. Cooling pipe; 7. Water pump; 8. Suction pipe; 9. Circulation pipe; 10. Valve; 11. Support plate; 12. Demister; 13. Fixing rod; 14. Support rod; 15. Clamp; 16. Threaded rod; 17. Nut. DETAILED DESCRIPTION

[0020] 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. Examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," and "installed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0022] See also Figure 1-4 The utility model provides a technical solution: a device for desulfurization flue gas whitening, comprising an exhaust pipe 1, the upper surface of the exhaust pipe 1 is fixedly connected to a mounting plate 2 through a flange, a connecting pipe 4 is fixedly connected to the right side of the upper surface of the mounting plate 2, the upper end of the connecting pipe 4 is connected to a clean smoke pipe 5, the lower end of the clean smoke pipe 5 is fixedly connected to the left side of the upper surface of the mounting plate 2, a cooling pipe 6 is fixedly connected to the inner side wall of the clean smoke pipe 5, a water pump 7 is provided on the left side of the clean smoke pipe 5, the water outlet end of the water pump 7 is connected to the lower end of the cooling pipe 6, the water pump end of the water pump 7 is connected to a water pumping pipe 8, and a circulation pipe 9 is fixedly connected to the left side of the inner side wall of the mounting plate 2; When in use, the device is fixed on the exhaust pipe 1 through the mounting plate 2. At this time, the exhaust pipe 1 discharges the flue gas into the clean smoke pipe 5 through the connecting pipe 4, connects the water pumping pipe 8 to the external cold water source, and pumps water into the cooling pipe 6 through the water pump 7. When the flue gas passes through the surface of the cooling pipe 6, it is liquefied by contact with the cold to form water droplets, thereby reducing the temperature of the flue gas and achieving the effect of whitening. The water droplets on the surface of the cooling pipe 6 fall directly by gravity and are collected on the lower side of the clean smoke pipe 5. The water is guided to a suitable container through the circulation pipe 9, which increases the contact area between the flue gas and the cooling pipe 6. The cooling effect is better, and there is no need for frequent water extraction operations, which is relatively simple.

[0023] In this embodiment, specifically: a valve 10 is installed on the outer wall of the circulation pipe 9; the valve 10 is a solenoid valve, which can remotely control the flow and cutoff of water in the circulation pipe 9.

[0024] In this embodiment, specifically: the outer wall of the smoke clean pipe 5 is fixedly connected with a support plate 11, and the water pump 7 is installed on the upper surface of the support plate 11; the support plate 11 is used to support the water pump 7 to work stably.

[0025] In this embodiment, specifically: the inner wall of the smoke clean pipe 5 is fixedly connected with a demister 12; the demister 12 can reduce the discharge of moisture in the smoke and improve the whitening effect.

[0026] In this embodiment, specifically: a pair of fixing rods 13 are fixedly connected to the lower surface of the mounting plate 2, the outer side wall of the fixing rod 13 is rotatably connected to the support rod 14, and the lower end of the support rod 14 is fixedly connected to the clamp 15; the clamp 15 cooperates with the support rod 14 to form a triangular support for the mounting plate 2 and the exhaust pipe 1, thereby improving the supporting effect on the clean smoke pipe 5.

[0027] In this embodiment, specifically: a threaded rod 16 is inserted into the inner wall of the clamp 15 , and a nut 17 is threadedly connected to the outer wall of the threaded rod 16 ; the clamp 15 is fixed to the exhaust pipe 1 by the threaded rod 16 and the nut 17 .

[0028] The working principle of the present invention is as follows: when in use, the device is fixed on the exhaust pipe 1 by the mounting plate 2, and the mounting plate 2 and the exhaust pipe 1 are supported by the clamp 15 in combination with the support rod 14 to form a triangular support for the mounting plate 2 and the exhaust pipe 1, thereby improving the supporting effect on the clean smoke pipe 5. At this time, the exhaust pipe 1 discharges the flue gas into the clean smoke pipe 5 through the connecting pipe 4, connects the water pump 8 to the external cold water source, and pumps water into the cooling pipe 6 through the water pump 7. When the flue gas passes through the surface of the cooling pipe 6, it is liquefied by contact with the cold to form water droplets, thereby reducing the temperature of the flue gas, thereby achieving the effect of de-whitening. The flue gas continues to float upward, and the demister 12 can reduce the discharge of moisture in the flue gas, thereby improving the de-whitening effect. The water droplets on the surface of the cooling pipe 6 fall directly by gravity and are collected on the lower side of the clean smoke pipe 5. The water is guided to a suitable container through the circulation pipe 9, thereby increasing the contact area between the flue gas and the cooling pipe 6, resulting in a better cooling effect, no need for frequent water extraction operations, and a relatively simple cooling method.

[0029] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for removing white gas from desulfurized flue gas, comprising an exhaust pipe (1), characterized in that: The upper surface of the exhaust pipe (1) is fixedly connected to a mounting plate (2) via a flange, a connecting pipe (4) is fixedly connected to the right side of the upper surface of the mounting plate (2), the upper end of the connecting pipe (4) is connected to a clean smoke pipe (5), the lower end of the clean smoke pipe (5) is fixedly connected to the left side of the upper surface of the mounting plate (2), the inner side wall of the clean smoke pipe (5) is fixedly connected to a cooling pipe (6), a water pump (7) is provided on the left side of the clean smoke pipe (5), the water outlet end of the water pump (7) is connected to the lower end of the cooling pipe (6), the water pump end of the water pump (7) is connected to a water pumping pipe (8), and a circulation pipe (9) is fixedly connected to the left side of the inner side wall of the mounting plate (2).

2. The device for desulfurization flue gas whitening according to claim 1, characterized in that: A valve (10) is installed on the outer side wall of the circulation pipe (9).

3. The device for desulfurization flue gas whitening according to claim 1, characterized in that: The outer side wall of the smoke clean pipe (5) is fixedly connected to a support plate (11), and the water pump (7) is installed on the upper surface of the support plate (11).

4. The device for desulfurization flue gas whitening according to claim 1, characterized in that: The inner side wall of the smoke cleaning pipe (5) is fixedly connected with a demister (12).

5. The device for desulfurization flue gas whitening according to claim 1, characterized in that: A pair of fixing rods (13) are fixedly connected to the lower surface of the mounting plate (2), the outer side walls of the fixing rods (13) are rotatably connected to support rods (14), and the lower ends of the support rods (14) are fixedly connected to clamps (15).

6. The device for desulfurization flue gas whitening according to claim 5, characterized in that: A threaded rod (16) is inserted into the inner side wall of the clamp (15), and a nut (17) is threadedly connected to the outer side wall of the threaded rod (16).

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