CN211585721U - Demisting structure of washing tower - Google Patents
Demisting structure of washing tower Download PDFInfo
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- CN211585721U CN211585721U CN201921916651.XU CN201921916651U CN211585721U CN 211585721 U CN211585721 U CN 211585721U CN 201921916651 U CN201921916651 U CN 201921916651U CN 211585721 U CN211585721 U CN 211585721U
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Abstract
The utility model discloses a demisting structure of a washing tower, wherein the washing tower at least comprises a circulating pump, a water tank, a filler, a spray head and a demister; a demister is arranged in the upper tower body of the washing tower; the diameter ratio of defroster go up the diameter of tower body big, the utility model discloses a to the design that the tower body increases in the tower footpath that is located silk screen demister department, through this design, can effectual promotion silk screen demister's defogging effect, compare in traditional scrubbing tower silk screen defroster, defogging effect can reach 99%, has promoted 9%; the design principle is simple, the operation is easy, and the method can be widely applied to the design and production of the washing tower.
Description
Technical Field
The utility model relates to a scrubbing tower technical field especially relates to a special defogging structure of scrubbing tower.
Background
At present, all washing towers face the problem of entrainment, fine liquid drops generated in the washing towers are carried out along with outlet gas, the washing effect of the gas is reduced, and meanwhile, a small amount of washing liquid (acid, alkali and salt) enters a subsequent system, and the subsequent system such as a fan, a heat exchanger or a pipeline is polluted, blocked and even corroded. The mist entrainment is generally carried out by installing a demister near the outlet of the washing tower, i.e. the mist droplets entrained in the flue gas are captured by using the device, so that the effect of gas-liquid separation is realized.
The defroster divide into baffling board defroster, whirl board defroster, silk screen defroster etc. provides an environmental protection dust removal defroster in for example the CN00221279 patent, has adopted the baffling board structure to being equipped with baffling board washing unit, can the defogging, also can removing dust, can reaching more than 90% through test individual layer defogging efficiency, can both carrying out effectual interception to 2 ~ 7 m/s' air current.
The demisting effect of the demister is not only related to the structure of the demister, but also related to the size and weight of the mist droplets, the gas flow rate and other factors. Generally, the larger the size and weight of the mist droplets, the easier they settle down, but the appropriate size of the gas flow rate is related to the type of demister and the demisting principle.
For example, for a baffle demister, the principle of inertia is utilized to make steam containing mist droplets pass through a plurality of parallel tortuous channels, the gas is changed in motion direction rapidly and continuously, but the mist droplets in the gas continuously impact on the plate wall in the demister under the action of centrifugal force and inertia to be intercepted to form liquid droplets, and the liquid droplets are gradually gathered and grown up and finally flow down along the wall from the surface of the baffle plate to be separated. Therefore, the gas flow rate of such a demister needs to be high, because the inertial force acting on the mist droplets is large due to the high flow rate, which is advantageous for the separation of gas and liquid. Certainly, the air speed can not be too high, and too high not only can cause the system resistance to increase, and the energy consumption increases, can cause the secondary to take water moreover, is unfavorable for the defogging on the contrary.
The whirl board defroster is similar with the baffling board defroster, also utilizes the inertia that centrifugal force produced, gets rid of the wall of tower equipment with the droplet on, collects the back and flows down under the action of gravity. Therefore, the gas flow velocity is larger, and the demisting efficiency can be effectively improved.
However, the wire mesh demister is different from the prior wire mesh demister, and the principle of the wire mesh demister is that airflow passes through a plurality of layers of fine wire knitted nets, mist continuously impacts the wire meshes at a proper air speed, liquid can be gradually suspended on the wire meshes due to wettability of the wire meshes, surface tension of the liquid and capillary action of the wire meshes, and flows to a joint of the two wire meshes, and at the joint, when the liquid drops increase to a point where the gravity generated by the liquid drops exceeds the resultant force of rising force of gas and surface tension of the liquid, the liquid drops are separated from the fine wires and fall. See from the principle of silk screen defroster, under the unchangeable circumstances of structure, if can reduce the air velocity, then can effectual improvement silk screen defroster's defogging efficiency, make the droplet have longer dwell time on the one hand and remove the gathering and grow up, owing to the reduction of buoyancy that rises on the one hand to make the droplet after growing up take place to subside under the effect of gravity more easily, thereby reach better defogging effect.
Therefore, the wire mesh demister is more suitable for the gas demisting at a low flow rate or after the gas velocity is reduced for the baffle plate demister and the cyclone plate demister, and the demisting effect of the wire mesh demister is more favorably improved. Certainly, the air speed cannot be too low, the too low air speed can cause the fog drops in the air flow to be in a suspended state to form aerosol, the impact frequency of the fog drops and the silk screen is reduced, and the attachment of the fog drops on the silk screen is not facilitated, so that the air speed needs to be designed within a reasonable range, and the increase range of the tower diameter is not too high.
The person skilled in the art is dedicated to solving the above technical drawbacks.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects of the prior art, the technical purpose of the present invention is to solve the problem that the existing washing tower has a poor effect of removing mist.
In order to achieve the technical purpose, the utility model provides a demisting structure of a washing tower, wherein the washing tower at least comprises a circulating pump, a water tank, a filler, a spray head and a demister; a demister is arranged in the upper tower body of the washing tower; the diameter of the demister is larger than that of the upper tower body.
Preferably, the demister is a wire mesh demister, and the diameter of the tower body on the wire mesh demister is increased by 10-50%.
Preferably, the tower diameter of the upper tower body at the wire mesh demister is increased by 20-40%.
Preferably, the packing and the circulating pump liquid supply pipe are arranged in the middle tower body of the washing tower.
Preferably, the top of the upper tower body is provided with an air outlet, and one side of the lower tower body of the washing tower on the surface is provided with an air inlet.
Preferably, the lower tower body is internally provided with the circulating pump, and the outer surface of the lower tower body is provided with a liquid level display.
Preferably, a water inlet of the circulating pump is communicated with the water tank, a water outlet of the circulating pump is communicated with the circulating pump liquid supply pipe, and one end, far away from the circulating pump, of the circulating pump liquid supply pipe is connected with the spray head.
The utility model has the advantages that:
the utility model discloses because above-mentioned structural design, through to the design that the tower body suitably increases in the tower footpath that is located silk screen defroster department, through this design, can effectual promotion silk screen defroster's defogging effect, compare in traditional scrubbing tower silk screen defroster, the defogging effect can reach 99%, has promoted 9%; the design principle is simple, the operation is easy, and the method can be widely applied to the design and production of the washing tower.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
fig. 2 is a schematic view of a partial structure of a demister part of a middle wire mesh of the present invention.
In the figure: 1 silk screen defroster, 2 tower bodies on, 3 thickening flanges, 4 tower bodies, 5 pall ring defogging fillers, 6 access holes, 7 circulating pump feed pipes, 8 pall ring fillers, 9 circulating pumps, 10 liquid level display, 11 tower bodies down.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Example (b):
as shown in fig. 1-2, a demisting structure of a washing tower at least comprises a circulating pump 9, a water tank, a filler, a spray head and a demister; a demister is arranged in the upper tower body 2 of the washing tower; the diameter of the demister is larger than that of the upper tower body 2.
Specifically, the defroster is silk screen defroster 1, and the tower footpath of tower body 2 is increased 10% -50% on silk screen defroster 1 department.
Specifically, the tower diameter of the upper tower body at the position of the wire mesh demister 1 is increased by 20-40%.
Specifically, a middle tower body 4 of the washing tower is internally provided with a filler (the filler adopts a pall ring demisting filler 5 and a pall ring filler 8) and a circulating pump liquid supply pipe 7.
Specifically, the top of the upper tower body 2 is provided with an air outlet, and one side of the surface of the lower tower body 11 of the washing tower is provided with an air inlet.
Specifically, a circulating pump 9 is arranged in the lower tower body 11, a liquid level display is arranged on the outer surface of the lower tower body 11, and the circulating pump is a corrosion-resistant circulating pump.
Specifically, the water inlet and the basin intercommunication of circulating pump 9, the delivery port and the circulating pump feed pipe 7 intercommunication of circulating pump 9, the one end that circulating pump 9 was kept away from to circulating pump feed pipe 7 is connected with the shower nozzle.
Specifically, go up and connect through thickening flange 3 between tower body 2, well tower body 4 and the lower tower body 11 respectively, go up tower body 2, well tower body 4 and lower tower body 11 and all adopt the glass steel material.
Specifically, when acid waste gas with the air volume of 12000m3/h is treated, when the tower diameter of the upper tower body 2 is 1800mm, the air velocity of the empty tower is 1.31m/s, the defogging effect of the wire demister 1 is 90%, when the tower diameter of the upper tower body 2 at the wire demister 1 is increased to 2500mm, namely the tower diameter is increased by 38.9%, the air velocity of the empty tower is reduced to 0.68m/s, the defogging effect at the time is 99%, and is improved by 9% compared with the case of no diameter change.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. A demisting structure of a washing tower at least comprises a circulating pump, a water tank, a filler, a spray head and a demister; the method is characterized in that: a demister is arranged in the upper tower body of the washing tower; the diameter of the demister is larger than that of the upper tower body.
2. The demister structure for a scrubber tower as set forth in claim 1, wherein: the demister is a wire mesh demister, and the diameter of the tower body on the wire mesh demister is increased by 10-50%.
3. The demister structure for a scrubber tower as set forth in claim 2, wherein: the tower diameter of the upper tower body at the wire mesh demister is increased by 20-40%.
4. The demister structure for a scrubber tower as set forth in claim 1, wherein: the packing and the circulating pump liquid supply pipe are arranged in the middle tower body of the washing tower.
5. The demister structure for a scrubber tower as set forth in claim 4, wherein: the water inlet of the circulating pump is communicated with the water tank, the water outlet of the circulating pump is communicated with the circulating pump liquid supply pipe, and one end, far away from the circulating pump, of the circulating pump liquid supply pipe is connected with the spray head.
6. The demister structure for a scrubber tower as set forth in claim 1, wherein: the top of going up the tower body is equipped with the air outlet, one side on the lower tower body surface of scrubbing tower is equipped with the air intake.
7. The demister structure for a scrubber tower as set forth in claim 6, wherein: the lower tower body is internally provided with the circulating pump, and the outer surface of the lower tower body is provided with a liquid level display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921916651.XU CN211585721U (en) | 2019-11-08 | 2019-11-08 | Demisting structure of washing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921916651.XU CN211585721U (en) | 2019-11-08 | 2019-11-08 | Demisting structure of washing tower |
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| Publication Number | Publication Date |
|---|---|
| CN211585721U true CN211585721U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921916651.XU Active CN211585721U (en) | 2019-11-08 | 2019-11-08 | Demisting structure of washing tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896575A (en) * | 2021-09-09 | 2022-01-07 | 浙江华东工程建设管理有限公司 | Perishable garbage machine fertilizer forming equipment and fertilizer forming method |
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2019
- 2019-11-08 CN CN201921916651.XU patent/CN211585721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113896575A (en) * | 2021-09-09 | 2022-01-07 | 浙江华东工程建设管理有限公司 | Perishable garbage machine fertilizer forming equipment and fertilizer forming method |
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