Water saving device for ammonia desulfurization

Abstract

The utility model relates to water saving device technical field, including the support cylinder shell of the axis horizontal setting, the condensing cylinder is rotatively established in the support cylinder shell, and the flue gas condenses after passageway is formed through the outer wall of condensing cylinder and the inner wall of support cylinder shell, and the circumferential wall of condensing cylinder in the support cylinder shell is equipped with mesh area, and the inner chamber of condensing cylinder is connected with flue gas condenses after passageway through mesh area, and the outer wall of condensing cylinder in flue gas condenses after passageway is coiled with condensing pipe, and the flue gas flow interval is established between the adjacent pipe wall of condensing pipe. The utility model solves the problem that flue gas cannot fully contact with condensing structure when using the water saving device of condensing method in traditional technology, the contact area is small, the heat exchange efficiency is reduced, and the condensation efficiency of water vapor in flue gas is reduced.

Description

Technical Field

[0001] This utility model relates to the field of water-saving device technology, specifically to a water-saving device for ammonia desulfurization. Background Technology

[0002] Ammonia desulfurization is a common flue gas desulfurization technology that consumes a large amount of water during operation. Installing water-saving devices can effectively reduce water consumption and improve water resource utilization. During ammonia desulfurization, the flue gas temperature is high and contains a large amount of water vapor. The condensate recovery device utilizes the principle of heat exchange, exchanging heat between the high-temperature flue gas and low-temperature water, causing the water vapor in the flue gas to cool and condense into liquid water. This condensate, after collection and treatment, can be reused in the desulfurization system.

[0003] The prior art discloses a patent with publication number CN206334531U, which includes a desulfurization tower and flue gas inlet, a flue gas cooling and concentration and sulfur dioxide absorption zone, a water washing zone, a cooling tower, a water washing pool, a water washing water transfer pump, and a clean flue gas chimney; the system has the advantages of simple process, good cooling effect, and low operating cost.

[0004] As existing devices are used, the shortcomings of this technology have gradually become apparent, mainly in the following aspects:

[0005] When existing condensation-based water-saving devices are used, the flue gas cannot fully contact the condensation structure, resulting in a small contact area, which reduces the heat exchange efficiency and consequently reduces the condensation efficiency of water vapor in the flue gas.

[0006] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a water-saving device for ammonia desulfurization, which solves the problem that in traditional condensation-based water-saving devices, the flue gas cannot fully contact the condensation structure, resulting in a small contact area, reduced heat exchange efficiency, and consequently reduced condensation efficiency of water vapor in the flue gas.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A water-saving device for ammonia-based desulfurization includes a horizontally oriented support cylinder. A condenser cylinder is coaxially rotatable within the support cylinder. A flue gas condensation channel is formed between the outer wall of the condenser cylinder and the inner wall of the support cylinder. The condenser cylinder has a perforated area on its circumferential wall within the support cylinder, which connects the inner cavity of the condenser cylinder to the flue gas condensation channel.

[0010] The condenser cylinder has condenser tubes coiled around its outer wall on the outer wall of the flue gas condensation channel, and flue gas flow gaps are provided between adjacent tube walls.

[0011] The lower end of the support cylinder is fixedly connected to a condensate drain valve that connects to the flue gas condensation channel.

[0012] As an optimized solution, a support hole is provided at one end of the support cylinder shell, and one end of the condenser cylinder is rotatably installed in the support hole, with a flue gas inlet inserted rotatably into one end of the condenser cylinder.

[0013] As an optimized solution, the upper end of the support shell is fixedly connected to a flue gas discharge cylinder that communicates with the flue gas condensation channel.

[0014] As an optimized solution, the inner wall of the condenser cylinder is surrounded by a number of turbulence fins, which are inclined radially to the condenser cylinder.

[0015] As an optimized solution, an end plate is fixedly connected to the other end of the condenser cylinder, and a support column is coaxially fixed to the outer wall of the end plate. The support column is rotatably mounted on the end of the support cylinder shell.

[0016] As an optimized solution, the support column is coaxially provided with a liquid inlet channel, and the end plate is provided with a liquid inlet connecting channel that communicates with the liquid inlet channel. The liquid inlet connecting channel is connected to one end of the condenser tube. The support column is provided with a liquid outlet channel arranged parallel to the liquid inlet channel, and the end plate is provided with a liquid outlet connecting channel that communicates with the liquid outlet channel. The liquid outlet connecting channel is connected to the other end of the condenser tube.

[0017] As an optimized solution, the outer end of the support column extends to the outside of the support cylinder shell and is rotatably fitted with a closed cylinder cover. A liquid inlet cylinder is fixedly connected to the outer end of the closed cylinder cover, and the inner end of the liquid inlet cylinder is rotatably inserted into the liquid inlet channel.

[0018] As an optimized solution, the liquid outlet channel is connected to the inner cavity of the sealed shroud, and the lower end of the sealed shroud is fixedly connected to a liquid outlet cylinder that communicates with its inner cavity.

[0019] As an optimized solution, a toothed ring is fixedly connected to the outer wall of the support column, and a drive motor is fixedly connected to the outer wall of the support cylinder shell. The output shaft of the drive motor meshes with the toothed ring through a gear.

[0020] As an optimized solution, a support frame is fixedly connected to the outer wall of the enclosed shroud, and the support frame is fixedly connected to the outer end of the support cylinder shell.

[0021] As an optimized solution, support rods are fixedly connected to the inner walls of the condenser near both ends, and scrapers are fixedly connected between the other ends of the two support rods, with the scrapers in frictional contact with the inner wall of the support cylinder shell.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] The condensing medium is introduced into the condensing tube through the inlet and outlet cylinders to participate in the condensation of flue gas. The condensing medium source is connected to the inlet and outlet cylinders to achieve a cyclical supply of condensing medium, ensuring the continuity of the condensation effect.

[0024] The condenser tube is coiled on the outer wall of the condenser cylinder to cool the condenser cylinder. The flue gas enters the condenser cylinder through the flue gas inlet tube. The flue gas passes through the mesh area and the flue gas flow gap to enter the flue gas condensation channel and is discharged through the flue gas outlet tube.

[0025] In this process, the flue gas comes into contact with the condenser, and the water vapor in the flue gas is pre-condensed into droplets. Under the action of gravity, the droplets pass through the mesh area and enter the flue gas condensation channel, where they accumulate at the bottom and are discharged to the outside through the condensate drain valve, thus saving water.

[0026] The support column rotates under the drive of the drive motor, which in turn drives the condenser cylinder to rotate, which can further improve the uniformity of contact with the flue gas, improve heat exchange efficiency, and improve water saving efficiency.

[0027] The inner wall of the condenser is provided with turbulence fins, which are inclined radially to the condenser. By rotating the turbulence fins, the kinetic energy of the flue gas is increased, allowing it to contact the condenser multiple times, thereby improving the uniformity of contact with the flue gas, improving heat exchange efficiency, and improving water saving efficiency. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a schematic diagram of the structure of the turbulence fins of this utility model.

[0031] In the diagram: 1-Support shell; 2-Condenser; 3-Condenser tube; 4-Turbulence fins; 5-Fluorite inlet; 6-End plate; 7-Fluorite outlet; 8-Scraper; 9-Support rod; 10-Condensate outlet valve; 11-Support column; 12-Enclosed hood; 13-Liquid inlet channel; 14-Liquid outlet channel; 15-Liquid inlet connecting channel; 16-Liquid outlet connecting channel; 17-Gear ring; 18-Driver; 19-Support frame; 20-Liquid inlet; 21-Liquid outlet. Detailed Implementation

[0032] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0033] like Figure 1 and Figure 2 As shown, the ammonia desulfurization water-saving device includes a horizontally oriented support cylinder 1. A condenser cylinder 2 is coaxially rotatable inside the support cylinder 1. A flue gas condensation channel is formed between the outer wall of the condenser cylinder 2 and the inner wall of the support cylinder 1. The condenser cylinder 2 has a mesh area on its circumferential wall inside the support cylinder 1, and the inner cavity of the condenser cylinder 2 is connected to the flue gas condensation channel through the mesh area.

[0034] The condenser 2 is located on the outer wall of the flue gas condensation channel, and a condenser tube 3 is coiled around it. There is a flue gas flow gap between adjacent tube walls of the condenser tube 3.

[0035] A condensate drain valve 10, which connects to the flue gas condensation channel, is fixedly connected to the lower end of the support shell 1.

[0036] One end of the support cylinder shell 1 is provided with a support hole, and one end of the condenser cylinder 2 is rotatably installed in the support hole, and flue gas is rotatably inserted into the condenser cylinder 2.

[0037] The upper end of the support shell 1 is fixed with a flue gas discharge cylinder 7 that connects to the flue gas condensation channel.

[0038] The inner wall of the condenser 2 is surrounded by several turbulence fins 4.

[0039] The turbulence fins 4 are inclined radially to the condenser cylinder 2.

[0040] The other end of the condenser 2 is fixedly connected to an end plate 6, and a support column 11 is coaxially fixed to the outer wall of the end plate 6. The support column 11 is rotatably installed on the end of the support cylinder shell 1.

[0041] A liquid inlet channel 13 is coaxially provided on the support column 11, and a liquid inlet connecting channel 15 connected to the liquid inlet channel 13 is provided in the end plate 6. The liquid inlet connecting channel 15 is connected to one end of the condenser tube 3. A liquid outlet channel 14 is provided on the support column 11 and arranged parallel to the liquid inlet channel 13. A liquid outlet connecting channel 16 connected to the liquid outlet channel 14 is provided in the end plate 6. The liquid outlet connecting channel is connected to the other end of the condenser tube 3.

[0042] The outer end of the support column 11 extends to the outside of the support cylinder shell 1 and is rotatably fitted with a closed cylinder cover 12. A liquid inlet cylinder 20 is fixedly connected to the outer end of the closed cylinder cover 12, and the inner end of the liquid inlet cylinder 20 is rotatably inserted into the liquid inlet channel 13.

[0043] The liquid outlet channel 14 is connected to the inner cavity of the closed cylinder cover 12, and the lower end of the closed cylinder cover 12 is fixedly connected to the liquid outlet cylinder 21 that communicates with its inner cavity.

[0044] Sealing rings are provided between the closed hood 12 and the support column, between the liquid inlet cylinder and the liquid inlet channel, and between the flue gas inlet cylinder and one end of the condenser cylinder 2.

[0045] A gear ring 17 is fixedly connected to the outer wall of the support column 11, and a drive motor 18 is fixedly connected to the outer wall of the support cylinder shell 1. The output shaft of the drive motor 18 meshes with the gear ring 17 through a gear.

[0046] A support frame 19 is fixedly connected to the outer wall of the enclosed cylindrical cover 12, and the support frame 19 is fixedly connected to the outer end of the support cylindrical shell 1.

[0047] Support rods 9 are fixedly connected to the inner walls of the condenser cylinder 2 near both ends. A scraper 8 is fixedly connected between the other ends of the two support rods 9. The scraper 8 is in frictional contact with the inner wall of the support cylinder shell 1.

[0048] The working principle of this device is as follows:

[0049] The condensing medium is introduced into the condensing pipe 3 through the inlet cylinder 20 and the outlet cylinder 21 to participate in the condensation of flue gas. The condensing medium source is connected through the inlet cylinder 20 and the outlet cylinder 21 to realize the cyclic supply of condensing medium and ensure the continuity of condensation effect.

[0050] The condenser tube 3 is coiled on the outer wall of the condenser cylinder 2 to cool the condenser cylinder 2. The flue gas enters the condenser cylinder 2 through the flue gas inlet cylinder 5. The flue gas will pass through the mesh area and the flue gas flow gap to enter the flue gas condensation channel and be discharged through the flue gas outlet cylinder 7.

[0051] The flue gas comes into contact with the condenser cylinder 2, and the water vapor in the flue gas is pre-condensed into droplets. Under the action of gravity, the droplets pass through the mesh area and enter the flue gas condensation channel, where they accumulate at the bottom and are discharged to the outside through the condensate drain valve 10, thus saving water.

[0052] The support column 11 rotates under the drive of the drive motor 18, which drives the condenser cylinder 2 to rotate, which can further improve the uniformity of contact with flue gas, improve heat exchange efficiency, and improve water saving efficiency.

[0053] The inner wall of the condenser cylinder 2 is provided with turbulence fins 4, which are inclined radially to the condenser cylinder 2. By rotating the turbulence fins 4, the kinetic energy of the flue gas can be increased, so that it can contact the condenser cylinder 2 multiple times, thereby improving the uniformity of contact with the flue gas, improving the heat exchange efficiency, and improving the water saving efficiency.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A water-saving device for ammonia desulfurization, characterized in that: The system includes a horizontally oriented support shell (1), within which a condenser (2) is coaxially rotatable. A flue gas condensation channel is formed between the outer wall of the condenser (2) and the inner wall of the support shell (1). The condenser (2) has a mesh area on its peripheral wall inside the support shell (1), and the inner cavity of the condenser (2) is connected to the flue gas condensation channel through the mesh area. The condenser cylinder (2) is located on the outer wall of the flue gas condensation channel, and a condenser tube (3) is coiled around it. A flue gas flow gap is provided between adjacent tube walls of the condenser tube (3). The lower end of the support shell (1) is fixed with a condensate drain valve (10) that connects to the flue gas condensation channel.

2. The ammonia desulfurization water-saving device according to claim 1, characterized in that: One end of the support cylinder shell (1) is provided with a support hole, one end of the condenser cylinder (2) is rotatably installed in the support hole, and a flue gas inlet cylinder (5) is rotatably inserted into one end of the condenser cylinder (2); a flue gas outlet cylinder (7) that connects to the flue gas condensation channel is fixedly connected to the upper end of the support cylinder shell (1).

3. The ammonia desulfurization water-saving device according to claim 2, characterized in that: The inner wall of the condenser cylinder (2) is surrounded by a number of turbulence fins (4), which are inclined to the radial direction of the condenser cylinder (2).

4. The ammonia desulfurization water-saving device according to claim 3, characterized in that: The other end of the condenser (2) is fixedly connected to an end plate (6), and a support column (11) is coaxially fixed to the outer wall of the end plate (6). The support column (11) is rotatably installed on the end of the support cylinder shell (1).

5. The ammonia desulfurization water-saving device according to claim 4, characterized in that: The support column (11) is coaxially provided with a liquid inlet channel (13), and the end plate (6) is provided with a liquid inlet connecting channel (15) connected to the liquid inlet channel (13). The liquid inlet connecting channel (15) is connected to one end of the condenser tube (3). The support column (11) is provided with a liquid outlet channel (14) arranged in parallel with the liquid inlet channel (13), and the end plate (6) is provided with a liquid outlet connecting channel (16) connected to the liquid outlet channel (14). The liquid outlet connecting channel is connected to the other end of the condenser tube (3).

6. The water-saving device for ammonia desulfurization according to claim 5, characterized in that: The outer end of the support column (11) extends to the outside of the support cylinder shell (1) and is rotatably fitted with a closed cylinder cover (12). A liquid inlet cylinder (20) is fixedly connected to the outer end of the closed cylinder cover (12), and the inner end of the liquid inlet cylinder (20) is rotatably inserted into the liquid inlet channel (13).

7. The ammonia desulfurization water-saving device according to claim 6, characterized in that: The liquid outlet channel (14) is connected to the inner cavity of the closed cylinder cover (12), and the lower end of the closed cylinder cover (12) is fixedly connected to the liquid outlet cylinder (21) that communicates with its inner cavity.

8. The ammonia desulfurization water-saving device according to claim 7, characterized in that: A toothed ring (17) is fixedly connected to the outer wall of the support column (11), and a drive motor (18) is fixedly connected to the outer wall of the support cylinder (1). The output shaft of the drive motor (18) meshes with the toothed ring (17) through a gear.

9. The ammonia desulfurization water-saving device according to claim 8, characterized in that: A support frame (19) is fixedly connected to the outer wall of the closed cylindrical cover (12), and the support frame (19) is fixedly connected to the outer end of the support cylindrical shell (1).

10. The ammonia desulfurization water-saving device according to claim 9, characterized in that: Support rods (9) are fixed to the inner walls near both ends of the condenser cylinder (2), and scrapers (8) are fixed between the other ends of the two support rods (9). The scrapers (8) are in frictional contact with the inner wall of the support cylinder shell (1).

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