Efficient turbulent flow desulfurizing tower

Abstract

The utility model discloses an efficient turbulent flow desulfurizing tower, and relates to the technical field of industrial flue gas desulfurizing towers. An efficient turbulent flow desulfurizing tower comprises a tower body, and the internal structure of the tower body is composed of secondary turbulent flow layers; the first layer is a first turbulent flow layer which uses a pore plate type gas distribution device for turbulent flow, the second layer is a liquid distribution layer which is composed of a novel multi-stage disc type liquid distributor and a novel packing layer, a novel multi-time gas turbulent flow structure is adopted in the internal structure of the tower body, gas enters the tower from bottom to top, and a layer of pore plate is firstly arranged as the first turbulent flow layer; a disc type liquid distribution device and a liquid distribution layer are arranged upwards to serve as a gas-liquid contact area, a tube bundle type demister layer is arranged on the upper portion of the contact area to serve as a secondary turbulent flow layer, a rod type tertiary turbulent flow layer is arranged finally, and through multiple times of turbulent flow, the tower body is compact in structure and full in gas-liquid contact, so that the desulfurization efficiency is improved, and the desulfurization cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial flue gas desulfurization towers, and particularly relates to an efficient turbulent flow desulfurization tower. Background Art

[0002] In the devices for industrial flue gas purification and desulfurization absorption, spray towers are widely used. It mainly consists of a tower body, a liquid distribution layer (also called a spray layer), a gas turbulent flow layer (also called a packing layer), etc. The flue gas enters the desulfurization tower from the lower part of the cylinder body, and the absorbent is sprayed down from the upper part, so that the flue gas and the absorbent fully react in the middle absorption area, thereby achieving the purpose of desulfurization. Among them, the distribution of the absorbent and the distribution of the flue gas flow field in the desulfurization tower have a greater impact on the desulfurization effect. Therefore, when the turbulent flow effect of the desulfurization tower is good and the gas flow field and the spray liquid are evenly distributed at the same time, the gas-liquid contact condition of the desulfurization tower will reach the best, the absorbent and the gas can be fully contacted, and the absorption effect will reach the best. According to relevant research, for the same tower type, a more reasonable turbulent flow structure can improve the uniformity of the flow field distribution in the desulfurization tower.

[0003] In view of the limitations of uneven gas flow field and uneven distribution of absorption liquid in common desulfurization towers, an efficient turbulent flow desulfurization tower with a brand-new and scientifically reasonable structural form is provided. Through multiple turbulent flows, the combination of different turbulent flow technologies, and the method of a multi-stage disc liquid distributor, the desulfurization efficiency of the desulfurization tower is improved. Summary of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide an efficient turbulent flow desulfurization tower, which can solve the limitations of uneven gas flow field and uneven distribution of absorption liquid in the desulfurization tower, and provide a brand-new and scientifically reasonable structural form of an efficient turbulent flow desulfurization tower, which realizes the improvement of the desulfurization efficiency of the desulfurization tower through multiple turbulent flows, the combination of different turbulent flow technologies, and the method of a multi-stage disc liquid distributor.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: An efficient turbulent flow desulfurization tower includes a tower body, and the internal structure of the tower body consists of a secondary turbulent flow layer; the first layer is the first turbulent flow layer, and a perforated plate gas distribution device is used for turbulent flow;

[0006] Among them, the second layer is the liquid distribution layer, which consists of a new type of multi-stage disc liquid distributor and a new type of packing layer. The third layer is the secondary turbulent flow layer, which consists of a swirl coupling tube bundle type swirl device. The fourth layer is the tertiary turbulent flow layer, which consists of a rod type gas distribution device. A disc type liquid distribution device is installed inside the tower body.

[0007] Preferably, a connecting pipe is fixedly connected to the outer wall of the tower body;

[0008] Among them, the connecting pipe is fixedly connected to the upper connecting pipe of the disc liquid distribution device through a hose.

[0009] Preferably, a sliding seat groove is formed on the outer wall of the connecting pipe;

[0010] Among them, the sliding seat groove is arc-shaped, and a sliding seat is slidably connected inside the sliding seat groove. Fixed blocks are fixedly connected to the outer walls on both sides of the sliding seat.

[0011] Preferably, fixed block grooves are formed on the outer walls of the two fixed blocks on the outer wall of the connecting pipe, and the outer walls of the two fixed blocks are respectively slidably connected to the inside of the corresponding fixed block grooves;

[0012] Among them, protective shells are fixedly connected to the outer walls of the two fixed blocks on the outer wall of the connecting pipe.

[0013] Preferably, limit block grooves are formed at one end of the opposite surfaces of the two protective shells, and limit blocks are slidably connected inside the two limit block grooves;

[0014] Among them, the lower surfaces of the two limit blocks are respectively in contact with the upper surfaces of the corresponding fixed blocks, and a filter plate is fixedly connected to the inner wall of the sliding seat.

[0015] Preferably, two return springs are arranged inside the two limit block grooves, and the two ends of the two return springs are respectively fixedly connected to the inner wall of the corresponding limit block groove and one end of the limit block;

[0016] Among them, pull rods are slidably connected to the outer walls of the two protective shells, and one ends of the two pull rods close to the limit blocks slidably extend into the limit block grooves and are respectively fixedly connected to one end of the corresponding limit block.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] 1. In this high-efficiency turbulent flow desulfurization tower, by adopting a new structure of multiple gas turbulent flows inside the tower body, the gas enters the tower from bottom to top. First, a layer of orifice plate is set as the first turbulent flow layer, and a disc liquid distribution device and a liquid distribution layer are set upward as the gas-liquid contact area. A tube bundle type demister layer is set above the contact area as the secondary turbulent flow layer, and finally a rod type tertiary turbulent flow layer is set. Through such multiple turbulent flows, the tower body structure is compact and the gas-liquid contact is sufficient, thereby improving the desulfurization efficiency and reducing the desulfurization cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further describes the present utility model in conjunction with the drawings and embodiments:

[0020] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0021] Figure 2This is a schematic structural diagram of the outside of the connecting pipe of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of the outside of the filter plate of the present utility model.

[0023] Reference numerals: 1, first turbulent layer; 2, liquid distribution layer; 3, disc liquid distribution device; 4, secondary turbulent layer; 5, tertiary turbulent layer; 6, connecting pipe; 7, limit block; 8, protective shell; 9, limit block groove; 10, sliding seat; 11, pull rod; 12, fixed block; 13, fixed block groove; 14, sliding seat groove; 15, filter plate; 16, return spring; 17, tower body. Detailed implementation manners

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be understood as a limitation on the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the present utility model.

[0026] In the description of the present utility model, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0027] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0028] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: an efficient turbulent flow desulfurization tower, including a tower body 17;

[0029] The internal structure of the tower body 17 consists of 4 parts of secondary turbulent flow layers; the first layer is the first turbulent flow layer 1, which uses an orifice plate type gas distribution device to generate turbulent flow. The second layer is the liquid distribution layer 2, which consists of a new type of multi-stage disc type liquid distributor and a new type of packing layer. The third layer is the secondary turbulent flow layer 4, which is composed of a swirl coupling tube bundle type swirl device. The fourth layer is the tertiary turbulent flow layer 5, which is composed of a rod type gas distribution device. A disc type liquid distribution device 3 is installed inside the tower body 17.

[0030] Among them, a connecting pipe 6 is fixedly connected to the outer wall of the tower body 17. The connecting pipe 6 is fixedly connected to the upper end connecting pipe of the disc type liquid distribution device 3 through a hose. A sliding seat groove 14 is opened on the outer wall of the connecting pipe 6. The sliding seat groove 14 is arc-shaped. A sliding seat 10 is slidably connected inside the sliding seat groove 14. Fixed blocks 12 are fixedly connected to both outer walls of the sliding seat 10. Fixed block grooves 13 are opened on the outer walls of the two fixed blocks on the outer wall of the connecting pipe 6. The outer walls of the two fixed blocks 12 are respectively slidably connected to the inside of the corresponding fixed block grooves 13. Protective shells 8 are fixedly connected to the outer walls of the two fixed blocks on the outer wall of the connecting pipe 6. Limiting block grooves 9 are opened at one end of the opposite surfaces of the two protective shells 8. Limiting blocks 7 are slidably connected inside the two limiting block grooves 9. The lower surfaces of the two limiting blocks 7 are respectively in contact with the upper surfaces of the corresponding fixed blocks 12. A filter plate 15 is fixedly connected to the inner wall of the sliding seat 10. Two reset springs 16 are arranged inside the two limiting block grooves 9. The two ends of the two reset springs 16 are respectively fixedly connected to the inner wall of the corresponding limiting block groove 9 and one end of the limiting block 7. Pull rods 11 are slidably connected to the outer walls of the two protective shells 8. One ends of the two pull rods 11 close to the limiting block 7 slidably extend into the limiting block grooves 9 and are respectively fixedly connected to one end of the corresponding limiting block 7.

[0031] Furthermore, when using this device, it is started by connecting to an external power supply. First, the first turbulent flow layer 1 composed of a perforated tray is set. After the flue gas enters the inside of the tower body 17, it undergoes gas-liquid phase exchange with the liquid film formed by the absorbent on the tray (the absorbent liquid maintains a layer of slurry on the orifice plate and uniformly flows down along the small holes to form a liquid film). At the same time, the formed foam layer expands the gas-liquid contact surface, improves the utilization rate of the absorbent, effectively reduces the liquid-gas ratio, and the velocity of the gas passing through is reduced and evenly distributed under the action of the liquid film.

[0032] Secondly, a liquid distribution layer 2 composed of a disc-type liquid distributor 3 and traditional packing is set up. Then, one end of the connecting pipe 6 is connected to an external device. Next, the external device transports liquid through the connecting pipe 6 into the interior of the disc-type liquid distributor 3. Then, the liquid is filtered by the filter plate 15 when passing through the connecting pipe 6 and enters the interior of the disc-type liquid distributor 3. Subsequently, the disc-type liquid distributor 3 with multi-stage distribution conducts liquid separation multiple times to achieve the effects of uniform liquid separation and moderate liquid flow rate, enabling the absorption slurry to be more evenly distributed on the packing. The liquid flows downward along the packing, and the flue gas and the liquid flow in a countercurrent manner for gas-liquid contact;

[0033] Then, a secondary turbulent layer 4 composed of a swirl-coupled tube bundle turbulent device is set up. When the flue gas passes through the tube bundle, under the action of the cyclone separator, a high-speed centrifugal motion is generated. The liquid droplets move towards the cylinder wall and finally drip into the flowing absorption liquid, while the flue gas maintains a suitable gas flow distribution state along the guide ring to achieve a better turbulent state;

[0034] Finally, a tertiary turbulent layer 5 composed of a rod-type turbulent device is set up. It is made of circular rod strips, with a simple structure, large gas channels, and small pressure loss, enabling the gas to pass through evenly, resulting in an ideal gas distribution effect. Then, when the filter plate 15 needs to be removed, pulling the pull rod 11 to move in the opposite direction drives the limit block 7 to move in the opposite direction while the other end of the limit block loses contact with the outer wall of the fixed block 12. Then, pulling the handle on the sliding seat 10 can remove the sliding seat 10 and the filter plate 15 from the interior of the connecting pipe 6.

[0035] By adopting a new structure with multiple gas turbulences in the internal structure of the tower body 17, the gas enters the tower from bottom to top. First, a perforated plate is set up as the first turbulent layer 1, and a disc-type liquid distributor 3 and a liquid distribution layer 2 are set up upward as the gas-liquid contact area. Above the contact area, a tube bundle type demister layer is set up as the secondary turbulent layer 4, and finally, a rod-type tertiary turbulent layer 5 is set up. Through such multiple turbulences, the tower body structure is compact, and the gas-liquid contact is sufficient, thereby improving the desulfurization efficiency and reducing the desulfurization cost. By pulling the pull rod 11 to move in the opposite direction, driving the limit block 7 to move in the opposite direction while the other end of the limit block loses contact with the outer wall of the fixed block 12, and then pulling the handle on the sliding seat 10, the sliding seat 10 and the filter plate 15 can be removed from the interior of the connecting pipe 6. This facilitates the removal of the filter plate 15, effectively improving the removal speed of the filter plate 15 and simultaneously enhancing the maintenance and repair efficiency of the filter plate 15.

[0036] Working principle: When using this device, it is started by connecting to an external power supply. First, a first turbulent layer 1 composed of perforated trays is set up. After the flue gas enters the interior of the tower body 17, it undergoes gas-liquid phase exchange with the liquid film formed by the absorbent on the trays (the absorbent liquid maintains a layer of slurry on the orifice plate and flows uniformly along the small holes to form a liquid film). At the same time, the formed foam layer expands the gas-liquid contact surface, improves the utilization rate of the absorbent, effectively reduces the liquid-gas ratio, and the velocity of the gas passing through is reduced and evenly distributed under the action of the liquid film;

[0037] Secondly, a liquid distribution layer 2 composed of a disc-type liquid distribution device 3 and traditional packing is set up. Then, one end of the connecting pipe 6 is connected to an external device, and then the external device transports the separated liquid into the interior of the disc-type liquid distribution device 3 through the connecting pipe 6. Then, the separated liquid is processed by the filter plate 15 when passing through the connecting pipe 6 and enters the interior of the disc-type liquid distribution device 3. Then, through the multi-stage distributed disc-type liquid distribution device 3, multiple separations of the liquid are carried out to achieve the effects of uniform liquid separation and moderate liquid flow rate, so that the absorption slurry is relatively evenly distributed on the packing. The liquid flows downwards along the packing, and the flue gas and the liquid flow in a countercurrent manner for gas-liquid contact;

[0038] Then, a second turbulent layer 4 composed of a swirl-coupled tube bundle turbulent device is set up. When the flue gas passes through the tube bundle, under the action of the cyclone separator, a high-speed centrifugal motion is generated. The liquid droplets move towards the cylinder wall and finally drip into the flowing absorbent liquid, while the flue gas maintains a suitable gas flow distribution state along the guide ring to achieve a better turbulent state;

[0039] Finally, a third turbulent layer 5 composed of a rod-type turbulent device is set up. It is laid with circular rod bars, has a simple structure, a large gas channel, and a small pressure loss, and can enable the gas to pass through evenly, making the gas distribution effect relatively ideal. Then, when it is necessary to remove the filter plate 15, pulling the pull rod 11 to move in the opposite direction drives the limit block 7 to move in the opposite direction while the other end of it loses contact with the outer wall of the fixed block 12. Then, pulling the handle on the sliding seat 10 can take out the sliding seat 10 and the filter plate 15 from the interior of the connecting pipe 6.

[0040] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge scope of those of ordinary skill in the art in the said technical field.

Claims

1. A high-efficiency turbulent flow desulfurization tower, comprising a tower body (17), characterized in that: The internal structure of the tower body (17) is composed of two parts: a secondary turbulent layer (4); the first turbulent layer (1) uses a perforated plate type gas distribution device to generate turbulent flow; The second layer is a liquid distribution layer (2), which is composed of a new multi-stage disc-type liquid distributor and a new packing layer; the third layer is a secondary turbulent layer (4), which is composed of a swirl-coupled tube bundle swirl device; the fourth layer is a tertiary turbulent layer (5), which is composed of a rod-type gas distribution device; and a disc-type liquid distribution device (3) is installed inside the tower body (17).

2. A high-efficiency turbulent desulfurization tower according to claim 1, characterized in that: The outer wall of the tower body (17) is fixedly connected with a connecting pipe (6); The connecting pipe (6) is fixedly connected to the upper connecting pipe of the disc-type liquid distributing device (3) via a hose.

3. A high-efficiency turbulent desulfurization tower according to claim 2, characterized in that: The outer wall of the connecting pipe (6) is provided with a sliding seat groove (14); The sliding seat groove (14) is arc-shaped, the interior of the sliding seat groove (14) is slidably connected to the sliding seat (10), and the outer walls on both sides of the sliding seat (10) are fixedly connected to the fixing blocks (12).

4. A high-efficiency turbulent flow desulfurization tower according to claim 2, characterized in that: The outer walls of the two fixing blocks on the outer wall of the connecting pipe (6) are both provided with fixing block grooves (13), and the outer walls of the two fixing blocks (12) are respectively slidably connected to the inside of the corresponding fixing block grooves (13); Wherein, the outer walls of the two fixing blocks on the outer wall of the connecting pipe (6) are both fixedly connected with a protective shell (8).

5. A high-efficiency turbulent flow desulfurization tower according to claim 4, characterized in that: A limit block groove (9) is provided at one end of the opposite surface of the two protective shells (8), and the insides of the two limit block grooves (9) are slidably connected to the limit blocks (7); The lower surfaces of the two limit blocks (7) are in contact with the upper surfaces of the corresponding fixed blocks (12) respectively, and the inner wall of the sliding seat (10) is fixedly connected with a filter plate (15).

6. A high-efficiency turbulent flow desulfurization tower according to claim 5, characterized in that: Two return springs (16) are arranged inside the two limit block grooves (9), and the two ends of the two return springs (16) are respectively fixedly connected to the inner wall of the corresponding limit block groove (9) and one end of the limit block (7); The outer walls of the two protective shells (8) are slidably connected to pull rods (11), and the ends of the two pull rods (11) close to the limit blocks (7) are slidably extended into the interior of the limit block grooves (9) and are respectively fixedly connected to one end of the corresponding limit blocks (7).

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