CN210645649U - Novel defogging spray column - Google Patents
Novel defogging spray column Download PDFInfo
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- CN210645649U CN210645649U CN201921479712.0U CN201921479712U CN210645649U CN 210645649 U CN210645649 U CN 210645649U CN 201921479712 U CN201921479712 U CN 201921479712U CN 210645649 U CN210645649 U CN 210645649U
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Abstract
The utility model relates to a novel demisting spray tower, which structurally comprises a tower body, a circulating liquid tank, an air inlet pipe, a spray layer, a demisting layer and an air outlet pipe, wherein the circulating liquid tank, the air inlet pipe, the spray layer, the demisting layer and the air outlet pipe are sequentially arranged in the tower body from bottom to top; the air inlet pipe comprises a pipe body which traverses the tower body, and a plurality of downward air distribution holes are formed in the pipe wall of the lower part of the pipe body; the demisting layer comprises a bracket arranged on the inner side wall of the tower body, a corrugated plate demister arranged on the bracket and a baffle arranged in the middle area of the demister; the lower pipe body of the air outlet pipe extends into the seal head cylinder section at the top of the tower body, the lower end pipe orifice of the air outlet pipe is just opposite to the baffle, and the diameter of the lower end pipe orifice is not larger than that of the baffle. The utility model discloses intake pipe, defogging layer, the outlet duct to the spray column all improve to reach and hold back and get rid of the spray column and give vent to anger and wrap up in the purpose of taking the circulating liquid, reduced the loss of spray column circulating liquid, improved the utilization efficiency of circulating liquid, can not influence the original absorption of spraying to waste gas component of spray column and get rid of efficiency.
Description
Technical Field
The utility model relates to a spray column, specifically speaking are novel defogging spray column.
Background
Along with the increasingly prominent atmospheric environment problem and the increasingly perfect environmental protection policy standard, various waste gas treatment processes such as Regenerative Thermal Oxidizer (RTO), regenerative catalytic combustion (RCO), low-temperature plasma, Ultraviolet (UV) photolysis, activated carbon adsorption, molecular sieve concentration and the like are also presented in succession. The spray tower is used as a common process device and plays an important role in various waste gas treatment process combinations.
The existing spray tower is in the process of ventilating and operating, the air outlet of the existing spray tower is often wrapped with a part of circulating liquid, so that the loss of the self circulating liquid of the spray tower is aggravated, the utilization efficiency of the circulating liquid is reduced, and the discharged circulating liquid can cause pollution to the external environment. If the system is a two-stage spraying system comprising an acid washing tower and an alkaline washing tower, if the gas from the spraying tower is wrapped with circulating liquid, acid liquor in the acid washing tower enters the alkaline washing tower along with the gas to neutralize alkaline liquor in the alkaline washing tower, so that the effective absorption and removal of the alkaline liquor on waste gas components are influenced, and the acid liquor is reduced and needs to be continuously supplemented to achieve the effect of spraying absorption; the alkali liquor is directly discharged along with the waste gas, which not only can affect the safety of peripheral facilities and the traffic of pedestrians, but also can affect the discharge index of the waste gas.
Therefore, the structure of the spray tower needs to be improved so as to intercept and remove the circulating liquid carried by the gas discharged from the spray tower.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel defogging spray column to solve current spray column and give vent to anger and wrap up in the problem of taking the circulating liquid.
The purpose of the utility model is realized like this: a novel demisting spray tower comprises a tower body, a circulating liquid tank, an air inlet pipe, a spray layer, a demisting layer and an air outlet pipe, wherein the circulating liquid tank, the air inlet pipe, the spray layer, the demisting layer and the air outlet pipe are sequentially arranged in the tower body from bottom to top; the air inlet pipe comprises a pipe body which traverses the tower body, and a plurality of downward air distribution holes are formed in the pipe wall of the lower part of the pipe body; the demisting layer comprises a bracket arranged on the inner side wall of the tower body, a corrugated plate demister arranged on the bracket and a baffle arranged in the middle area of the demister; the lower pipe body of the air outlet pipe extends into the seal head cylinder section at the top of the tower body, the lower end pipe orifice of the air outlet pipe is just opposite to the baffle, and the diameter of the lower end pipe orifice is not larger than that of the baffle.
The air distribution holes are provided with three rows, the three air distribution holes are all parallel to the axial direction of the air inlet pipe, the air distribution hole in the middle is arranged towards the right lower side and is called as a middle air distribution hole, the air distribution holes on the two sides are respectively called as a first side air distribution hole and a second side air distribution hole, the central angle corresponding to the arc clamped between the hole center connecting line of each first side air distribution hole and the hole center connecting line of each middle air distribution hole is 45 degrees, and the central angle corresponding to the arc clamped between the hole center connecting line of each second side air distribution hole and the hole center connecting line of each middle air distribution hole is also 45 degrees; the middle air distribution holes and the two side air distribution holes are arranged in a staggered manner.
The spraying layer comprises a spraying main pipe, a plurality of spraying branch pipes and a plurality of nozzles, wherein the spraying branch pipes are perpendicular to the spraying main pipe, the nozzles are arranged on the spraying main pipe and the spraying branch pipes, the spraying branch pipes are arranged on two sides of the spraying main pipe in a 'rich' shape and are respectively communicated with the spraying main pipe, and the nozzles are arranged on a circumference which takes the middle point of the spraying main pipe as the center of a circle.
The spraying layer is provided with two layers or three layers, and a packing layer is respectively arranged below each spraying layer.
The utility model discloses a theory of operation does:
waste gas to be treated enters from the gas inlet pipe, is diffused downwards through the gas distribution holes at the bottom of the pipe body, and is diffused upwards after contacting the liquid level of the circulating liquid, so that the waste gas enters the tower and reaches the gas velocity of the empty tower at the highest speed, and the possibility that the circulating liquid is carried by gas emission is reduced; meanwhile, the spraying layer starts to spray circulating liquid, the circulating liquid is fully contacted with the rising air flow, harmful components in the air flow are absorbed, and spraying adsorption is completed; and then, the airflow continuously rises to the demisting layer, the middle airflow changes the direction due to the existence of the baffle plate and disperses towards the periphery, the entrained extremely small amount of circulating liquid is intercepted and removed by the corrugated plate of the demister, and then the airflow passing through the demisting layer collides with the inner wall of the seal head at the top of the tower body firstly, then returns to be gathered and is discharged through the lower port of the air outlet pipe.
The utility model discloses intake pipe, defogging layer, the outlet duct to the spray column all improve to reach and hold back and get rid of the spray column and give vent to anger and wrap up in the purpose of taking the circulating liquid, reduced the loss of spray column circulating liquid, improved the utilization efficiency of circulating liquid, can not influence the original absorption of spraying to waste gas component of spray column and get rid of efficiency. And moreover, the structure is simple and efficient, and the device is suitable for structural transformation of spray towers which are already put into use and also suitable for design and processing of new spray towers.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 to 3 are schematic structural views of the intake duct.
Fig. 4 to 5 are schematic structural views of the spray layer.
Fig. 6 is a schematic view of the spray range of the spray layer.
FIGS. 7 to 8 are schematic structural views of the defogging layer.
In the figure: 1. the device comprises a tower body, 2, a circulating liquid tank, 3, an air inlet pipe, 4, a spraying layer, 5, a demisting layer, 6, an air outlet pipe, 7, a sealing head cylinder section, 8, an air distribution hole, 9, a spraying main pipe, 10, a spraying branch pipe, 11, a nozzle, 12, a spraying inlet, 13, a bracket, 14, a demister, 15, a baffle, 16, a gas channel, 17 and a corrugated plate.
Detailed Description
As shown in fig. 1, the utility model discloses a tower body 1, by supreme circulation liquid case 2, the intake pipe 3 that sets gradually in tower body 1 down, spray layer 4, defogging layer 5 and parts such as outlet duct 6.
The tower body 1 is cylindrical, a circulating liquid tank 2 is arranged at the bottom of the tower body, an end socket cylinder section 7 is arranged at the top of the tower body, and a manhole is arranged on the side wall of the tower body. The circulating liquid tank 2 is used for collecting and storing circulating liquid sprayed from the upper part.
The air inlet pipe 3 is positioned above the circulating liquid tank 2 and horizontally penetrates through the tower body 1. As shown in fig. 2 to 3, three rows of air distribution holes 8 are arranged at the bottom of the air inlet pipe 3 and are parallel to the axial direction of the pipe body, the orifice of the row of air distribution holes 8 in the middle is directed right below, which is called as a middle air distribution hole, the air distribution holes 8 at the two sides of the middle air distribution hole are respectively called as a first side air distribution hole and a second side air distribution hole, the hole center connecting line of each first side air distribution hole is parallel to the hole center connecting line of each middle air distribution hole, and the central angle corresponding to the arc sandwiched between the two lines is 45 °, and similarly, the central angle corresponding to the arc sandwiched between the hole center connecting line of each second side air distribution hole and the hole center connecting line of the middle air distribution hole is also 45 °. The middle air distribution holes and the two side air distribution holes are arranged in a staggered way, as shown in figure 2. The air inlet pipe 3 adopts the form of the perforated air distribution pipe, the holes are downward, air flow is firstly diffused downward and then diffused upward after contacting the liquid level of the circulating liquid, the traditional mode that waste gas is directly diffused upward after entering the tower is changed, the waste gas reaches the air speed of the empty tower at the highest speed after entering the tower, and the possibility that the circulating liquid is carried by the waste gas emission is reduced.
As shown in fig. 4 to 5, the spraying layer 4 includes a main spraying pipe 9, a plurality of branch spraying pipes 10, and a plurality of nozzles 11. The main spray pipe 9 is communicated with the circulating liquid tank 2 through a pipeline, the branch spray pipes 10 are perpendicular to the main spray pipe 9 and arranged in a shape of 'feng' on two sides of the main spray pipe 9, and each branch spray pipe 10 is communicated with the main spray pipe 9. The nozzle 11 is a small-flow solid conical spiral nozzle 11, the nozzle is downward, two concentric circles are drawn by taking the middle point of the main spray pipe 9 as the center of a circle, and the intersection position of the two concentric circles, the main spray pipe 9 and the branch spray pipe 10 is the setting position of the nozzle 11. The schematic diagram of the spraying range of the spraying layer 4 is shown in fig. 6, and the spraying is carried out in a multi-point crossed fan shape through a spraying pipeline without spraying dead angles. The structure improves the absorption and removal efficiency of the spray tower to the waste gas components, and the amount of the circulating liquid contacted with the same air flow is much smaller than that of the traditional groove type liquid distributor, so that the possibility that the circulating liquid is carried in the waste gas emission is reduced.
Can be according to actual demand, design 2~3 layers and spray the layer, pass through flow control valve with the circulation liquid and distribute to each and spray the layer in, further reduce the possibility that waste gas emission wrapped up in and carries the circulation liquid. A packing layer is arranged below the spraying layer 4 or between two adjacent spraying layers 4.
The defogging layer 5 is disposed above the spray layer 4 and near the top of the tower, and includes a bracket 13, a defogger 14, and a baffle 15, as shown in fig. 7 to 8. The bracket 13 is connected with the inner wall of the tower body 1; the demister 14 is arranged on the bracket 13 and is a corrugated plate demister 14, and a C-shaped or S-shaped gas channel 16 is formed between two adjacent corrugated plates 17; the baffle 15 is a solid circular plate body and is blocked below the middle part of the demister 14. The waste gas after being sprayed and adsorbed rises to the demisting layer 5, the middle gas changes the trend due to the obstruction of the baffle 15 when rising, and diffuses towards the periphery, and rises through the C-shaped or S-shaped gas channel 16 of the demister 14 to pass through the demister 14, and a very small amount of circulating liquid possibly carried in the waste gas is intercepted and removed by the corrugated plate 17. Above-mentioned structure has improved defroster 14's work efficiency, compares single defroster 14 or whirl board, and it gets rid of more thoroughly to wrap up in the entrapment of carrying the circulating fluid to exhaust emission.
As shown in fig. 1, the outlet pipe 6 is arranged at the top of the tower body 1 and located right above the baffle 15 of the demister 14, the bottom end of the pipe body extends into the spray tower head cylinder section 7, and the diameter of the pipe opening at the bottom end is not larger than that of the baffle 15. And after passing through the demisting layer 5, the waste gas firstly rises to the inner wall of the end socket at the top of the tower body 1, then returns downwards to be gathered, and finally is discharged outside through the gas outlet pipe 6. Through the discharge stroke of extension waste gas to and utilize the collision of waste gas and tower body head inner wall, further catch the circulating liquid that the waste gas discharge was carried and get rid of.
The utility model discloses a material and the design lectotype of each part need satisfy the requirement of waste gas component and circulation liquid materialization nature.
Claims (4)
1. A novel demisting spray tower is characterized by comprising a tower body, a circulating liquid box, an air inlet pipe, a spray layer, a demisting layer and an air outlet pipe, wherein the circulating liquid box, the air inlet pipe, the spray layer, the demisting layer and the air outlet pipe are sequentially arranged in the tower body from bottom to top; the air inlet pipe comprises a pipe body which traverses the tower body, and a plurality of downward air distribution holes are formed in the pipe wall of the lower part of the pipe body; the demisting layer comprises a bracket arranged on the inner side wall of the tower body, a corrugated plate demister arranged on the bracket and a baffle arranged in the middle area of the demister; the lower pipe body of the air outlet pipe extends into the seal head cylinder section at the top of the tower body, the lower end pipe orifice of the air outlet pipe is just opposite to the baffle, and the diameter of the lower end pipe orifice is not larger than that of the baffle.
2. A novel demisting spray tower as set forth in claim 1 wherein the gas distribution holes are arranged in three rows, the three rows of gas distribution holes are all parallel to the axial direction of the inlet pipe, the gas distribution hole in the middle row is directed directly below and is referred to as the middle gas distribution hole, the gas distribution holes on both sides are referred to as the first side gas distribution hole and the second side gas distribution hole, respectively, the central angle corresponding to the arc sandwiched between the line of the centers of the first side gas distribution holes and the line of the centers of the middle gas distribution holes is 45 °, and the central angle corresponding to the arc sandwiched between the line of the centers of the second side gas distribution holes and the line of the centers of the middle gas distribution holes is 45 °.
3. The novel defogging spray tower as recited in claim 1, wherein said spray layer comprises a main spray pipe, a plurality of branch spray pipes vertically disposed with respect to the main spray pipe, and a plurality of nozzles disposed on the main spray pipe and the branch spray pipes, each branch spray pipe being arranged in a "rich" shape on both sides of the main spray pipe and being respectively communicated with the main spray pipe, each nozzle being disposed on a circumference centered on a midpoint of the main spray pipe.
4. The novel defogging spray tower as recited in claim 1 wherein said spray levels are provided in two or three layers with a respective filler layer disposed below each spray level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479712.0U CN210645649U (en) | 2019-09-06 | 2019-09-06 | Novel defogging spray column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921479712.0U CN210645649U (en) | 2019-09-06 | 2019-09-06 | Novel defogging spray column |
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| CN210645649U true CN210645649U (en) | 2020-06-02 |
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| CN201921479712.0U Active CN210645649U (en) | 2019-09-06 | 2019-09-06 | Novel defogging spray column |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499695A (en) * | 2021-08-24 | 2021-10-15 | 上海蓝科石化环保科技股份有限公司 | Safe butt joint distributor for waste gas |
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2019
- 2019-09-06 CN CN201921479712.0U patent/CN210645649U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113499695A (en) * | 2021-08-24 | 2021-10-15 | 上海蓝科石化环保科技股份有限公司 | Safe butt joint distributor for waste gas |
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