Washing demisting purifier

Abstract

The utility model discloses a washing demisting purifier which comprises a demisting box, an air inlet pipe connected to the inner wall of one side of the demisting box and an air outlet pipe connected to the inner wall of the other side of the demisting box, and further comprises a liquid discharge pipe connected to the inner wall of the bottom of the demisting box, and a plurality of heat conduction fins distributed at equal intervals are fixed to the outer wall of the air inlet pipe. According to the utility model, the unwashed high-temperature flue gas can be used for heating the washed flue gas, subsequent condensation demisting is facilitated, additional heating equipment is not needed, more energy is saved, the cooled gas enters the demisting box to be in contact with the cold contact plate, and the temperature gradient is larger, so that the condensation process is promoted, the condensation efficiency is improved, and the energy consumption is reduced. In the demisting process, the liquid scraping assembly can move up and down and left and right to scrape off the water drops on the surfaces of the two sides of the contact plate, and the situation that the water drops on the surfaces of the contact plate reduce the direct contact area of the contact plate and the gas, and consequently the condensation effect is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of demisters, in particular to a washing demisting purifier. Background Technique

[0002] The demister in the scrubbing tower is a key component in the scrubbing tower, mainly used to remove the liquid droplets in the flue gas after treatment in the scrubbing tower, playing a role of secondary purification. In the scrubbing tower, the flue gas contacts with the circulating liquid through the spray layer to remove the pollutants therein. However, before the flue gas leaves the scrubbing tower, it may carry some tiny liquid droplets. If these liquid droplets are not removed, they may have an adverse impact on the subsequent treatment equipment or the emission environment.

[0003] The current demister mainly consists of fixed devices such as corrugated blades, plates, and clamping strips. These components cooperate together. Due to the inertial impact of the gas, the mist droplets collide with the corrugated plate or the plate and are captured. As the liquid droplets gather, when their gravity exceeds the resultant force of the upward force of the gas and the surface tension of the liquid, the liquid droplets are separated from the surface of the corrugated plate or the plate. This kind of demister has a simple structure. Although it has a certain demisting ability, it only demists through the movement of the gas, and the demisting effect is relatively general. Content of the Utility Model

[0004] The purpose of the utility model is to provide a washing demisting purifier to solve the problems put forward in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A washing demisting purifier, comprising: a demisting box, an air inlet pipe connected to one inner wall of the demisting box, and an air outlet pipe connected to the other inner wall of the demisting box. It further includes: a drain pipe connected to the bottom inner wall of the demisting box. A plurality of equally spaced heat-conducting fins are fixed on the outer wall of the air inlet pipe, and a flue gas heating component is fixed on the outer wall of the air inlet pipe. A plurality of equally spaced contact plates are inserted into the top outer wall of the demisting box, and a water cooling component is fixed on the top outer wall of the demisting box. A first electric push rod is inserted into one side of the top outer wall of the demisting box, and a liquid scraping component is installed at the bottom of the piston rod of the first electric push rod.

[0006] The flue gas heating component includes a heat exchange tube, a flue gas input pipe connected to the top inner wall of the heat exchange tube, and a flue gas output pipe connected to the bottom inner wall of the heat exchange tube.

[0007] The water cooling component includes a housing, a water inlet pipe connected to the upper part of one inner wall of the housing, and a water outlet pipe connected to the lower part of one inner wall of the housing.

[0008] The liquid scraping assembly includes a movable part, a long plate installed at the bottom of the movable part, a plurality of equally spaced scraping plates fixed on the outer wall of one side of the long plate, a second electric push rod installed on the outer wall of one side of the movable part, and a connecting plate fixed at one end of the outer wall of the top of the long plate, and the piston rod of the second electric push rod is connected to the connecting plate.

[0009] The movable part includes a short plate, a T-shaped groove opened on the outer wall of the bottom of the short plate, and a T-shaped block slidably connected to the inner wall of the T-shaped groove.

[0010] The contact plate is inclined.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] A washing and demisting purifier of the present utility model can use unwashed high-temperature flue gas to heat the washed flue gas, which is convenient for subsequent condensation and demisting, without the need to use additional heating equipment, and is more energy-saving. The cooled gas enters the demisting box and contacts the cold contact plate. Due to the large temperature gradient, the condensation process will be promoted, the condensation efficiency will be improved, a large amount of water droplets will condense on the surface of the contact plate, and a good demisting effect on the gas will be achieved. During the demisting process, the liquid scraping assembly can be driven by the first electric push rod to move up and down reciprocally, so that the liquid scraping assembly can continuously scrape off the water droplets condensed on the surface of the contact plate. At the same time, the liquid scraping assembly can move back and forth left and right during the movement, which is convenient for scraping off the water droplets on both sides of the contact plate surface, and avoiding the reduction of the direct contact area between the contact plate and the gas due to the water droplets on the contact plate surface, resulting in the reduction of the condensation effect. Description of the Drawings

[0013] Figure 1 It is a sectional structure diagram of the present utility model;

[0014] Figure 2 It is a structure diagram of the flue gas heating component of the present utility model;

[0015] Figure 3 It is a structure diagram of the water cooling component of the present utility model;

[0016] Figure 4 It is a structure diagram of the liquid scraping assembly of the present utility model;

[0017] Figure 5 It is a structure diagram of the movable part of the present utility model.

[0018] In the figure: 1. Demisting box; 2. Intake pipe; 3. Exhaust pipe; 4. Drain pipe; 5. Heat-conducting fins; 6. Flue gas heating assembly; 601. Heat exchange pipe; 602. Flue gas input pipe; 603. Flue gas output pipe; 7. Contact plate; 8. Water cooling assembly; 801. Housing; 802. Water inlet pipe; 803. Water outlet pipe; 9. First electric push rod; 10. Liquid scraping assembly; 1001. Movable part; 1001-1. Short board; 1001-2. T-shaped groove; 1001-3. T-shaped block; 1002. Long board; 1003. Second electric push rod; 1004. Connecting plate; 1005. Scraper plate. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-5 , a washing and demisting purifier provided by the present invention includes: a demisting box 1, an intake pipe 2 connected to one inner wall of the demisting box 1, and an exhaust pipe 3 connected to the other inner wall of the demisting box 1. It further includes: a drain pipe 4 connected to the bottom inner wall of the demisting box 1. A plurality of equally spaced heat-conducting fins 5 are fixed on the outer wall of the intake pipe 2, and a flue gas heating assembly 6 is fixed on the outer wall of the intake pipe 2. A plurality of equally spaced contact plates 7 are inserted into the top outer wall of the demisting box 1, and a water cooling assembly 8 is fixed on the top outer wall of the demisting box 1. A first electric push rod 9 is inserted into one side of the top outer wall of the demisting box 1, and a liquid scraping assembly 10 is installed at the bottom of the piston rod of the first electric push rod 9.

[0021] It should be noted here that the contact plate 7 can be refrigerated by the water cooling component 8. The flue gas heating component 6 can be connected to the flue gas pipeline entering the scrubbing tower, so that the unwashed flue gas flows through the flue gas heating component 6 before entering the scrubbing tower. The intake pipe 2 can be connected to the scrubbing tower outlet pipeline, and the gas after scrubbing enters the intake pipe 2. The high-temperature flue gas flows in the flue gas heating component 6, heats the intake pipe 2 located in the flue gas heating component 6, and then heats the gas after scrubbing in the intake pipe 2. There is no need to use additional heating equipment, which is more energy-efficient. The heat conduction fins 5 provided can improve the heating effect on the gas in the intake pipe 2. The gas after heating enters the demisting box 1 and contacts the cold contact plate 7. Due to the large temperature gradient, the condensation process will be promoted and the condensation efficiency will be improved. A large amount of water droplets will condense on the surface of the contact plate 7, achieving a good demisting effect on the gas. The gas after demisting is discharged through the outlet pipe 3. During the demisting process, the first electric push rod 9 can drive the liquid scraping component 10 to move up and down reciprocally, so that the liquid scraping component 10 can continuously scrape off the water droplets condensed on the surface of the contact plate 7. At the same time, the liquid scraping component 10 can move back and forth left and right during the movement, facilitating the scraping off of the water droplets on both sides of the contact plate 7, and preventing the water droplets on the surface of the contact plate 7 from reducing the direct contact area between the contact plate 7 and the gas, resulting in a reduction in the condensation effect.

[0022] In a preferred embodiment, the flue gas heating component 6 includes a heat exchange tube 601, a flue gas input pipe 602 connected to the inner wall of the top of the heat exchange tube 601, and a flue gas output pipe 603 connected to the inner wall of the bottom of the heat exchange tube 601.

[0023] It should be noted here that the flue gas can enter the heat exchange tube 601 through the flue gas input pipe 602. After heating the intake pipe 2 and the heat conduction fins 5, it flows to the scrubbing tower through the flue gas output pipe 603.

[0024] In a preferred embodiment, the water cooling component 8 includes a housing 801, a water inlet pipe 802 connected to the upper part of the inner wall of one side of the housing 801, and a water outlet pipe 803 connected to the lower part of the inner wall of one side of the housing 801.

[0025] It should be noted here that cold water can be introduced into the housing 801 through the water inlet pipe 802 to cool the contact plate 7, and the cooled water then flows out through the water outlet pipe 803.

[0026] In a preferred embodiment, the liquid scraping component 10 includes a movable part 1001, a long plate 1002 installed at the bottom of the movable part 1001, a plurality of equally spaced scraping plates 1005 fixed on the outer wall of one side of the long plate 1002, a second electric push rod 1003 installed on the outer wall of one side of the movable part 1001, and a connecting plate 1004 fixed at one end of the outer wall of the top of the long plate 1002, and the piston rod of the second electric push rod 1003 is connected to the connecting plate 1004.

[0027] It should be noted here that the scraper 1005 is inserted between the contact plates 7. The first electric push rod 9 drives the movable part 1001 to move up and down, and at the same time, the second electric push rod 1003 is cooperated to push the long plate 1002 to move back and forth in a small range at the bottom of the movable part 1001, so that the scraper 1005 can move left and right to contact the two side surfaces of the contact plate 7 during the up and down movement, which is convenient for scraping off the water droplets on the two side surfaces of the contact plate 7.

[0028] In a preferred embodiment, the movable part 1001 includes a short plate 1001-1, a T-shaped groove 1001-2 opened on the outer wall of the bottom of the short plate 1001-1, and a T-shaped block 1001-3 slidably connected to the inner wall of the T-shaped groove 1001-2.

[0029] It should be noted here that the T-shaped block 1001-3 can slide on the inner wall of the T-shaped groove 1001-2, thereby driving the long plate 1002 to move.

[0030] In a preferred embodiment, the contact plate 7 is inclined.

[0031] It should be noted here that it is beneficial for the gas to impact on the surface of the contact plate 7.

[0032] Working principle: Cold water can be introduced into the housing 801 through the water inlet pipe 802 to cool the contact plate 7, and the cooled water then flows out through the water outlet pipe 803. The flue gas input pipe 602 can be connected to the flue gas pipeline entering the scrubbing tower, so that the unwashed flue gas flows through the heat exchange tube 601 before entering the scrubbing tower, and then flows to the scrubbing tower through the flue gas output pipe 603;

[0033] The inlet pipe 2 can be connected to the scrubbing tower outlet pipeline. The gas after scrubbing enters the inlet pipe 2. The high-temperature flue gas flows in the heat exchange tube 601 to heat the inlet pipe 2, and then heats the gas after scrubbing in the inlet pipe 2. There is no need to use additional heating equipment, which is more energy-saving. The heating effect on the gas in the inlet pipe 2 can be improved by the provided heat conduction fins 5;

[0034] The gas after heating enters the demisting box 1 and contacts the cold contact plate 7. Due to the large temperature gradient, the condensation process will be promoted and the condensation efficiency will be improved. A large amount of water droplets will condense on the surface of the contact plate 7, which has a good demisting effect on the gas. The gas after demisting is discharged through the outlet pipe 3;

[0035] During the defogging process, the first electric push rod 9 can drive the short board 1001-1 to move up and down. Since the scraper 1005 is inserted between the contact plates 7, and at the same time, the second electric push rod 1003 is used to push the long board 1002 to drive the T-shaped block 1001-3 to slide on the inner wall of the T-shaped groove 1001-2, so that the long board 1002 moves back and forth in a small range at the bottom of the short board 1001-1. When the scraper 1005 moves up and down, it can move left and right to contact the two side surfaces of the contact plate 7, which is convenient for scraping off the water droplets on the two side surfaces of the contact plate 7, and avoids the water droplets on the surface of the contact plate 7 from reducing the direct contact area between the contact plate 7 and the gas, resulting in a reduction in the condensation effect.

[0036] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A washing and demisting purifier, comprising: A demister box (1), an air inlet pipe (2) connected to the inner wall of one side of the demister box (1), and an air outlet pipe (3) connected to the inner wall of the other side of the demister box (1); It is characterized in that it also includes: a drain pipe (4) connected to the inner wall at the bottom of the demister box (1), a plurality of equidistantly distributed heat-conducting fins (5) are fixed to the outer wall of the air inlet pipe (2), and a flue gas heating component (6) is fixed to the outer wall of the air inlet pipe (2), a plurality of equidistantly distributed contact plates (7) are plugged into the top outer wall of the demister box (1), and a water cooling component (8) is fixed to the top outer wall of the demister box (1), a first electric push rod (9) is plugged into one side of the top outer wall of the demister box (1), and a liquid scraping component (10) is installed at the bottom of the piston rod of the first electric push rod (9).

2. A washing and demisting purifier according to claim 1, characterized in that: The flue gas heating component (6) comprises a heat exchange tube (601), a flue gas input tube (602) connected to the top inner wall of the heat exchange tube (601), and a flue gas output tube (603) connected to the bottom inner wall of the heat exchange tube (601).

3. A washing and demisting purifier according to claim 1, characterized in that: The water cooling assembly (8) comprises a shell (801), a water inlet pipe (802) connected to the upper portion of the inner wall of one side of the shell (801), and a water outlet pipe (803) connected to the lower portion of the inner wall of one side of the shell (801).

4. A washing and demisting purifier according to claim 1, characterized in that: The liquid scraping assembly (10) comprises a movable part (1001), a long plate (1002) mounted on the bottom of the movable part (1001), a plurality of equally spaced scraping plates (1005) fixed on the outer wall of one side of the long plate (1002), a second electric push rod (1003) mounted on the outer wall of one side of the movable part (1001), and a connecting plate (1004) fixed to one end of the outer wall at the top of the long plate (1002), wherein a piston rod of the second electric push rod (1003) is connected to the connecting plate (1004).

5. A washing and demisting purifier according to claim 4, characterized in that: The movable part (1001) comprises a short plate (1001-1), a T-shaped groove (1001-2) provided on the outer wall at the bottom of the short plate (1001-1), and a T-shaped block (1001-3) slidably connected to the inner wall of the T-shaped groove (1001-2).

6. A washing and demisting purifier according to claim 1, characterized in that: The contact plate (7) is arranged obliquely.

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