CN218981021U

CN218981021U - Formaldehyde absorption tower

Info

Publication number: CN218981021U
Application number: CN202320066967.4U
Authority: CN
Inventors: 黄剑华; 陈小玉
Original assignee: Huizhou Li'er'an Chemical Co ltd
Current assignee: Huizhou Li'er'an Chemical Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-05-09
Anticipated expiration: 2033-01-07

Abstract

The utility model relates to the technical field of absorption towers, and discloses a formaldehyde absorption tower, which comprises a tower body, wherein an absorption device is arranged in the tower body, absorption liquid is sprayed by the absorption device to absorb formaldehyde in gas, a dispersing device is arranged in the tower body, the dispersing device is used for dispersing aggregated gas, and a circulating device is arranged on the tower body. This formaldehyde absorption tower lets in gas in to the tower body, absorbing device sprays the absorbing liquid in to the tower, the absorbing liquid absorbs formaldehyde, the absorbing liquid after absorbing formaldehyde drops into circulating device in, circulating device circulates the absorbing liquid to dispersion devices below, and atomize the absorbing liquid, the absorbing liquid of atomizing absorbs the formaldehyde in the gas of constantly letting in, gas disperses through dispersion devices, the contact of gas and atomized absorbing liquid has been strengthened, the absorption efficiency of reinforcing absorbing liquid, gas continues to rise after the absorbing liquid absorption of atomizing, the re-absorption is carried out to the rethread absorbing device, make the formaldehyde in the gas by the hierarchical absorption, and then the formaldehyde in the gas has been reduced remains.

Description

Formaldehyde absorption tower

Technical Field

The utility model relates to the technical field of absorption towers, in particular to a formaldehyde absorption tower.

Background

Formaldehyde, also called formaldehyde, is an organic compound, is colorless and has a stimulating effect on eyes, nose and the like, has a relative density of 1.067 (air=1), a liquid density of 0.815g/cm < 3 > (-20 ℃) and a melting point of-92 ℃, a boiling point of-19.5 ℃, is easily dissolved in water and ethanol, the concentration of an aqueous solution can reach 55%, generally 35% -40%, generally 37%, and is called formaldehyde water commonly known as formalin.

In the formaldehyde production process, a formaldehyde absorption tower is generally used for preparing formaldehyde solution, however, the existing formaldehyde absorption tower is usually used for absorbing formaldehyde by contacting gas moving from bottom to top with absorption liquid sprayed from top to bottom, but the absorption liquid drops quickly due to gravity, the formaldehyde in the gas is insufficiently contacted with the absorption liquid, so that the absorption efficiency of the absorption liquid is not high, and a large amount of formaldehyde remains in the gas.

Disclosure of Invention

The present utility model is directed to a formaldehyde absorber to solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a formaldehyde absorption tower, includes the tower body, set up absorbing device in the tower body, absorbing device sprays the formaldehyde that the absorption liquid is arranged in absorbing gas, set up dispersing device in the tower body, dispersing device is used for the gaseous of discrete gathering, set up circulating device on the tower body, circulating device is used for the cyclic utilization absorption liquid, circulating device cooperates dispersing device is used for absorbing the formaldehyde in the gaseous after the gaseous dispersion, circulating device cooperates absorbing device is used for absorbing the formaldehyde in the gaseous in grades.

Preferably, the tower body is provided with an air inlet, and the top of the tower body is provided with an air outlet.

Preferably, the absorption device comprises a water tank, and the water tank is fixedly arranged on the outer wall of the tower body.

Preferably, the water tank is connected with the sprayer through a pipeline, the sprayer is arranged in the tower body, a mounting column is fixedly mounted on the sprayer, and one end of the mounting column is fixedly connected with the inner wall of the tower body.

Preferably, the bottom of the sprayer is provided with a straight spray head and an inclined spray head.

Preferably, the dispersing device comprises a baffle plate, the baffle plate is fixedly arranged in the tower body, and a plurality of through holes are formed in the baffle plate.

Preferably, a protective cover is fixedly arranged at the bottom of the partition plate, and a speed reducing motor is fixedly arranged in the protective cover.

Preferably, a rotating shaft is fixedly arranged at the output end of the speed reducing motor, and fan blades are fixedly arranged on the rotating shaft.

Preferably, the circulating device comprises a liquid storage tank, the liquid storage tank is arranged in a tower body, a water pump is fixedly arranged on the outer wall of the tower body, the water pump is connected with the liquid storage tank through a pipeline, a liquid collecting tank is fixedly arranged at the bottom of the liquid storage tank, the liquid collecting tank is fixedly connected with the tower body, and a leak hole is formed in the periphery of the liquid storage tank at the top of the liquid collecting tank.

Preferably, the water pump is connected with the atomizing nozzle through a pipeline, and the atomizing nozzle is fixedly arranged on the inner wall of the tower body.

The utility model provides a formaldehyde absorption tower. The formaldehyde absorption tower has the following beneficial effects:

this formaldehyde absorption tower lets in gas in to the tower body, absorbing device sprays the absorbing liquid in to the tower, the absorbing liquid absorbs formaldehyde, the absorbing liquid after absorbing formaldehyde drops into circulating device in, circulating device circulates the absorbing liquid to dispersion devices below, and atomize the absorbing liquid, the absorbing liquid of atomizing absorbs the formaldehyde in the gas of constantly letting in, gas disperses through dispersion devices, the contact of gas and atomized absorbing liquid has been strengthened, the absorption efficiency of reinforcing absorbing liquid, gas continues to rise after the absorbing liquid absorption of atomizing, the re-absorption is carried out to the rethread absorbing device, make the formaldehyde in the gas by the hierarchical absorption, and then the formaldehyde in the gas has been reduced remains.

Drawings

FIG. 1 is a perspective view of the structure of the present utility model;

FIG. 2 is a cross-sectional view of the tower of FIG. 1;

FIG. 3 is a bottom view of the sprayer of FIG. 2;

FIG. 4 is an enlarged view of FIG. 2 at A;

FIG. 5 is a bottom view of the fan blade of FIG. 4;

fig. 6 is an enlarged view at B in fig. 2.

In the figure: 1. a tower body; 2. an air inlet; 3. an air outlet; 4. an absorption device; 41. a water tank; 42. a sprayer; 43. a mounting column; 44. a straight spray head; 45. oblique spray heads; 5. a dispersing device; 51. a partition plate; 52. a through hole; 53. a protective cover; 54. a speed reducing motor; 55. a rotating shaft; 56. a fan blade; 6. a circulation device; 61. a liquid storage tank; 62. a water pump; 63. a liquid collecting tank; 64. a leak hole; 65. an atomizing spray head.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, the utility model provides a formaldehyde absorption tower, which comprises a tower body 1, wherein an air inlet 2 is formed in the tower body 1, an air outlet 3 is formed in the top of the tower body 1, an absorption device 4 is arranged in the tower body 1, and absorption liquid is sprayed by the absorption device 4 to absorb formaldehyde in gas.

The absorbing device 4 comprises a water tank 41, the water tank 41 is fixedly arranged on the outer wall of the tower body 1, the water tank 41 is connected with a sprayer 42 through a pipeline, the sprayer 42 is arranged in the tower body 1, a mounting column 43 is fixedly arranged on the sprayer 42, one end of the mounting column 43 is fixedly connected with the inner wall of the tower body 1, a straight spray head 44 and an inclined spray head 45 are arranged at the bottom of the sprayer 42, air is continuously introduced into the tower body 1 from an air inlet 2, the sprayer 42 is started, the sprayer 42 sprays out the absorbing liquid in the water tank 41, the air exists in a place with larger inner diameter in the tower body 1 due to the fact that the inner diameter of the tower body 1 continuously changes along with the height, but the straight spray head 44 is difficult to spray the absorbing liquid, the inward inclined spray head 45 is arranged, the absorbing liquid sprayed out of the inclined spray head 45 falls along with the change of the height in a curve, the contact surface between the larger the falling height of the absorbing liquid and the air is easy to absorb formaldehyde in more air, the formaldehyde in the process of the falling of the absorbing liquid is absorbed, and the absorbing liquid after the formaldehyde is absorbed into the liquid storage tank 61.

As shown in fig. 4 to 5, a dispersing device 5 is provided in the tower body 1, and the dispersing device 5 is used for dispersing aggregated gas.

The dispersing device 5 comprises a baffle plate 51, the baffle plate 51 is fixedly arranged in the tower body 1, a plurality of through holes 52 are formed in the baffle plate 51, a protective cover 53 is fixedly arranged at the bottom of the baffle plate 51, a speed reducing motor 54 is fixedly arranged in the protective cover 53, a rotating shaft 55 is fixedly arranged at the output end of the speed reducing motor 54, fan blades 56 are fixedly arranged on the rotating shaft 55, the collected gas is dispersed by the fan blades 56, the gas is dispersed and also floats downwards for a short time, and the contact time of the gas and the absorption liquid is increased.

As shown in fig. 2 and fig. 4-6, a circulating device 6 is arranged on the tower body 1, the circulating device 6 is used for recycling the absorption liquid, the circulating device 6 is matched with the dispersing device 5 to disperse the gas and then absorb formaldehyde in the gas, and the circulating device 6 is matched with the absorbing device 4 to absorb formaldehyde in the gas in a grading manner.

The circulating device 6 comprises a liquid storage tank 61, the liquid storage tank 61 is arranged in the tower body 1, a water pump 62 is fixedly arranged on the outer wall of the tower body 1, the water pump 62 is connected with the liquid storage tank 61 through a pipeline, a liquid collecting tank 63 is fixedly arranged at the bottom of the liquid storage tank 61, the liquid collecting tank 63 is fixedly connected with the tower body 1, a leak hole 64 is formed in the periphery of the liquid storage tank 61 at the top of the liquid collecting tank 63, the water pump 62 is connected with an atomizing spray head 65 through a pipeline, the atomizing spray head 65 is fixedly arranged on the inner wall of the tower body 1, the water pump 62 is started, the water pump 62 circulates the absorbing liquid absorbing formaldehyde into the atomizing spray head 65, the atomizing spray head 65 atomizes and sprays the absorbing liquid, the atomized absorbing liquid absorbs formaldehyde in the continuously introduced gas, the gas is dispersed through a fan blade 56, the fan blade 56 blows the gas downwards, the gas drifts down temporarily, the gas is absorbed by the atomized absorbing liquid again, the contact between the gas and the atomized absorbing liquid is enhanced, the absorbing efficiency of the absorbing liquid is enhanced, the gas is absorbed through the atomized absorbing liquid and then continues to rise, the absorbing liquid sprayed out through the liquid absorbing liquid in the liquid collector 42, formaldehyde in the gas is absorbed again, the formaldehyde in the gas is absorbed in the liquid storage tank, and then the formaldehyde is reduced, and the formaldehyde in the formaldehyde is absorbed and then the formaldehyde is left in the gas and the formaldehyde in the tank 61 after the gas is absorbed through the liquid.

Working principle: the gas is continuously introduced into the tower body 1 from the gas inlet 2, the sprayer 42 is started, the sprayer 42 sprays the absorption liquid in the water tank 41, the inner diameter of the tower body 1 continuously changes along with the height, gas exists in the place with the larger inner diameter in the tower body 1, but the direct spray nozzle 44 is difficult to spray the absorption liquid, the inward inclined spray nozzle 45 is arranged, the absorption liquid sprayed out by the inclined spray nozzle 45 falls in a curve along with the change of the height, the larger the falling height of the absorption liquid is, the larger the contact surface of the absorption liquid with the gas is, formaldehyde in the absorption liquid is easy to absorb, the formaldehyde in the absorption liquid falls in the process, the absorption liquid after absorbing the formaldehyde falls into the liquid storage tank 61, the water pump 62 is started again, the absorption liquid after absorbing the formaldehyde is circulated into the atomizing spray nozzle 65, the atomizing spray nozzle 65 atomizes and sprays the absorption liquid, the formaldehyde in the gas continuously flows into the air through the fan blade 56, the air is blown downwards, the air is again absorbed by the absorption liquid, the formaldehyde in the absorption liquid is enhanced, the absorption liquid and the formaldehyde absorption liquid is enabled to fall into the absorption liquid in the liquid storage tank 61 after the mist is continuously, the absorption liquid is continuously sprayed in the liquid storage tank 61, and the residual formaldehyde absorption liquid is continuously passes through the absorption liquid after the mist absorption tank, and the residual formaldehyde absorption liquid is continuously passes through the spray holes, and the absorption liquid is continuously collected, and the absorption liquid in the absorption tank is continuously after the absorption liquid is sprayed in the absorption tank, and the absorption tank is in the absorption tank after the absorption liquid is in the absorption tank is in the absorption.

In view of the foregoing, it will be appreciated that while embodiments of the utility model have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations may be made hereto without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a formaldehyde absorption tower, includes tower body (1), its characterized in that: an absorption device (4) is arranged in the tower body (1), and the absorption device (4) sprays absorption liquid for absorbing formaldehyde in gas;

a dispersing device (5) is arranged in the tower body (1), and the dispersing device (5) is used for dispersing aggregated gas;

the tower body (1) is provided with a circulating device (6), the circulating device (6) is used for recycling the absorption liquid, the circulating device (6) is matched with the dispersing device (5) to be used for dispersing gas and then absorbing formaldehyde in the gas, and the circulating device (6) is matched with the absorbing device (4) to be used for absorbing formaldehyde in the gas in a grading manner.

2. A formaldehyde absorber according to claim 1, wherein: an air inlet (2) is formed in the tower body (1), and an air outlet (3) is formed in the top of the tower body (1).

3. A formaldehyde absorber according to claim 1, wherein: the absorption device (4) comprises a water tank (41), and the water tank (41) is fixedly arranged on the outer wall of the tower body (1).

4. A formaldehyde absorber according to claim 3, characterized in that: the water tank (41) is connected with the sprayer (42) through a pipeline, the sprayer (42) is arranged in the tower body (1), a mounting column (43) is fixedly installed on the sprayer (42), and one end of the mounting column (43) is fixedly connected with the inner wall of the tower body (1).

5. The formaldehyde absorbing tower of claim 4, wherein: the bottom of the sprayer (42) is provided with a straight spray head (44) and an inclined spray head (45).

6. A formaldehyde absorber according to claim 1, wherein: the dispersing device (5) comprises a partition plate (51), the partition plate (51) is fixedly arranged in the tower body (1), and a plurality of through holes (52) are formed in the partition plate (51).

7. The formaldehyde absorbing tower of claim 6, wherein: the bottom of the partition plate (51) is fixedly provided with a protective cover (53), and a gear motor (54) is fixedly arranged in the protective cover (53).

8. A formaldehyde absorber according to claim 7, wherein: the output end of the gear motor (54) is fixedly provided with a rotating shaft (55), and the rotating shaft (55) is fixedly provided with a fan blade (56).

9. A formaldehyde absorber according to claim 1, wherein: the circulating device (6) comprises a liquid storage tank (61), the liquid storage tank (61) is arranged in a tower body (1), a water pump (62) is fixedly arranged on the outer wall of the tower body (1), the water pump (62) is connected with the liquid storage tank (61) through a pipeline, a liquid collecting tank (63) is fixedly arranged at the bottom of the liquid storage tank (61), the liquid collecting tank (63) is fixedly connected with the tower body (1), and a leak hole (64) is formed in the top of the liquid collecting tank (63) around the liquid storage tank (61).

10. A formaldehyde absorber according to claim 9, wherein: the water pump (62) is connected with the atomizing nozzle (65) through a pipeline, and the atomizing nozzle (65) is fixedly arranged on the inner wall of the tower body (1).