KR101940394B1 - Scrubber with point-injection and upward spraying - Google Patents

Abstract

The present invention relates to a point injecting and upward injecting scrubber which injects a pollutant gas mixed with a pollutant into a first purifying tank 101 and at the same time pumped the cleansing water stored in the washing water tank 104, (1), and the polluted gas in the first purifying tank (101) is transferred to the subsequent tank arrangement including one or more subsequent purifying tanks (102, 103) in sequence A first purge tank (101) having a first purge tank (101) and a second purifier tank (101), and a second purge tank A transfer pipe 112 for connecting the inside of the first purifying tank 101 and the inside of the subsequent purifying tank 102; A gas discharge pipe 114 connecting the inside and the outside of the other subsequent purifying tank 103 and a second purifying tank 103 connecting the inside of the first purifying tank 101 and the subsequent purifying tank 103, And a plurality of cleaning water injection nozzles 107 installed to spray the cleaning water in the rinse water tank 104 upward from the bottom of the tank 102 and the other subsequent purification tank 103, respectively.

Description

SCRUBBER WITH POINT-INJECTION AND UPWARD SPRAYING [0002]

The present invention relates to a scrubber for absorbing contaminants by spraying water into an inlet pollution gas, and more particularly, to a scrubber for adsorbing and / or solubilizing contaminants by water by increasing an opportunity of contact between the inlet pollution gas and water The present invention relates to a new point injection and upward injection type scrubber capable of sufficiently improving the removal efficiency of pollutants even with a simple and inexpensive facility having only a small number of injection nozzles.

Generally, a scrubber is one of purifiers for purifying polluted gas containing harmful substances generated in various industrial facilities. Such a scrubber can be used, for example, by introducing contaminated gas into an enclosed space and then spraying water (or a mixture of water and an absorbent) downwardly into the incoming contaminant gas, such as the principle that the atmosphere is cleaned after the rain has been turned on So that the polluted gas and the water are brought into contact with each other, whereby the pollutants in the polluted gas are discharged together with water through the action of dissolving in the water, and the purified gas from which the pollutants are removed is separately discharged.

However, since the conventional scrubber has poor contact efficiency between the water and the incoming pollutant gas, it must have a structure in which the process of spraying water is divided into several parts. As a result, the scale of the scrubber is increased and the equipment cost is increased.

In order to solve such a problem, a conventionally proposed example is disclosed in Korean Patent Registration No. 10-0975099 (published on Aug. 11, 2010, patentee: KORECO Co., Ltd., name of the invention: multiscrubber) An example is shown in which a plurality of gas processing sections are partitioned in the chamber so that the contaminated gas can be subjected to the multi-stage purification treatment.

However, such a structure still employs a structure in which water is sprayed from the upper side to the lower side of the polluted gas in a shower manner. In such a shower type configuration, there is a problem that the space between the droplets falling from the top downward is very wide and the time for the water drops to fall into the space is very short, so that the chance that the contaminants in the contaminant gas actually come in contact with water is not very large. In order to solve such a problem, a large number of water injection nozzles are installed and the injection pressure is increased to increase the amount of water to be treated per hour, thus complicating the facility and increasing the cost.

Accordingly, the present invention has been made to solve the problems of the conventional scrubber technology, and the present inventors have found that it is necessary to increase the possibility of contact between the water sprayed in the scrubber and the polluted gas in order to improve the scrubbing performance of the scrubber For this purpose, if the water is injected upwardly in a fractional fashion instead of spraying downward in a shower, the length of the trajectory increases as the sprayed droplets rise and rise, so that the chance of contact between the droplets and the polluted gas increases . Further, the present inventor has pointed out that the chance of contact between the sprayed droplets and the incoming pollutant gas can be easily increased if the water is sprayed against the contaminant gas entering at a relatively narrow point. Further, the present inventors have found that, by arranging the plurality of purification tanks to move along the narrow passage as much as possible when the gas in the purification process moves, and at the same time to maximize the length of the movement path, And to increase the contact opportunity of the user.

The present invention, which is designed on the basis of the above-mentioned drawbacks, is particularly effective in increasing the possibility of contact between the incoming pollutant gas and the water by constituting the spraying of the water in the form of upward fractional water, Which can increase the adsorption force and / or the solubilization power of the scrubbing nozzle, and can improve the removal efficiency of the pollutant even with a simple and inexpensive facility having only a small number of injection nozzles.

In addition, the present invention is configured to inject water with the polluted gas as a target at the inflow point of the polluted gas introduced through the narrow pipe, thereby increasing the chance of contact between the incoming pollution gas and water, The present invention also provides a novel upward spray type scrubber capable of increasing the removal efficiency of the pollutant even in a simple and inexpensive facility having only a small number of spray nozzles.

Further, the present invention is characterized in that the path for moving to the subsequent purification tank is constituted by a narrow tube and its arrangement is configured to maximize the length of the travel path of the gas, thereby increasing the chance of contact between the incoming polluting gas and water, The present invention aims to provide a new upward injection type scrubber which can increase the adsorption force and / or solubility of contaminants and can improve the removal efficiency of contaminants sufficiently even with a simple and inexpensive facility having only a small number of injection nozzles.

This object is achieved by the point injection and upward injector scrubber provided in accordance with the invention.

The point injection and upward injection type scrubber according to one aspect of the present invention is characterized by injecting a pollutant gas mixed with a pollutant into a first purification tank and pumping the cleansing water stored in the cleaning water tank at the same time, The pollutant in the pollutant gas is injected into the first tank, the polluted gas in the first tank is sent to the subsequent tank array including the subsequent purifier tank, and the cleaning water is sprayed to purify the contaminant, A scrubber for discharging the purified gas in a removed state, the scrubber comprising: a gas inlet pipe for introducing the polluted gas downward from an upper side of the first purifying tank; A transfer pipe connecting the inside of the subsequent purification tank and another transfer pipe connecting the inside of the subsequent purification tank, A plurality of purge tanks for discharging the rinse water in the rinse water tank upwardly from a lower portion of each of the first purifying tank, the subsequent purifying tank, and the other subsequent purifying tanks, and a gas discharge pipe connecting the inside and the outside of the subsequent purifying tank And a cleaning water jetting nozzle.

In an embodiment, a point injection module is provided between the gas inlet pipe of the first purification tank and one of the cleaning water injection nozzles installed in the first purification tank, and in the point injection module: A tube extension configured to radially expand the diameter of the gas inlet tube and to draw gas downward from the top, wherein one of the cleaning water injection nozzles extends adjacent to a lower portion of the tube extension, And a point spraying nozzle configured to spray cleaning water toward the pipe expanding portion, wherein a narrow upper portion and a wider lower portion are provided between the pipe expanding portion and the point injection nozzle, (122) from the point spray nozzles when it is introduced through the gap between the top and bottom It may be configured to be washed by the washing water that is reflected.

In one embodiment of the present invention, the end portion of the end portion of the gas inflow pipe located inside the first purification tank is located at an upper portion of the first purification tank, and one end portion for introducing gas into the transfer pipe is connected to the first purification The other end for gas outflow is located in the upper part of the inside of the subsequent purifying tank and the one end for gas inflow of the other transporting pipe is located in the lower part of the inside of the subsequent purifying tank, The other end for gas outflow is located in the upper part of the inside of the other subsequent purification tank and the end of the end part of the gas discharge pipe located inside the other subsequent purification tank is located at the upper part of the inside of the other subsequent purification tank can do.

According to the point injecting and upward injecting scrubber of the present invention, by increasing the contact area and the contact time between the incoming polluting gas and the water, the adsorption force and / or the solving power of the polluting substance by water are increased, A new upward injection type scrubber can be provided.

Specifically, according to the point injection and upward injection type scrubber of the present invention, by arranging the water to be injected in an upward fractional shape with respect to the polluted gas flowing from the top to the bottom, by increasing the chance of contact between the incoming pollutant gas and water, It is possible to provide a new upward injection type scrubber capable of sufficiently improving the removal efficiency of contaminants even in a simple and inexpensive facility having only a small number of injection nozzles.

Furthermore, according to the point injection and upward injection type scrubber of the present invention, the water is sprayed from the inlet point of the polluted gas through the narrow pipe as a target, so that the contact opportunity between the inlet pollution gas and the water So as to increase the adsorption force and / or solubility of pollutants by water, thereby providing a new upward injection type scrubber capable of sufficiently improving pollutant removal efficiency even with a simple and inexpensive facility having only a small number of injection nozzles .

Further, according to the present invention, the path for moving to the subsequent purifying tank is constituted by a narrow pipe, and the arrangement thereof is made to maximize the moving path of the gas, thereby naturally increasing the chance of contact between the incoming polluting gas and water, Jet type scrubber that can increase the adsorption force and / or solubility of pollutants by a simple and inexpensive facility including only a small number of injection nozzles.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic diagram illustrating the construction of a point injection and upward injector scrubber in accordance with one embodiment of the present invention.
FIG. 2 is a schematic view showing in detail the detailed configuration of the point injection module among the configurations of the point injection and upward injection type scrubber of FIG. 1; FIG.
Figures 3 to 5 are schematic perspective views illustrating the number and arrangement variations of purge tanks in the construction of point injection and upward injector scrubbers in accordance with embodiments of the present invention.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. The following description and drawings are only for illustrative purposes and are not intended to limit the scope of the invention. In other words, it is to be understood that the embodiments described below can be modified in various ways when they are implemented in the field, and if they are within the technical idea of the present invention, they should belong to the present invention. To be readily understood by those skilled in the art of marine technology.

1 is a schematic diagram illustrating the construction of a point injection and upward injector scrubber in accordance with one embodiment of the present invention.

Referring to FIG. 1, the scrubber 100 is characterized in that the injection of the polluting gas is performed through a tube or tube having a small diameter. Further, the scrubber 100 of the present invention is characterized in that the washing water is sprayed upward from the bottom, that is, in the direction opposite to the gravity direction.

In the illustrated example, the scrubber 100 has a first purifying tank 101, a second purifying tank 102, and a third purifying tank 103 for injecting the polluting gas into the first purifying tank 101 A gas inflow pipe 111 for introducing gas into the second purifying tank 102 and the third purifying tank 103 sequentially from the first purifying tank 101 to the subsequent purifying tank 102, And a gas discharge pipe 114 for discharging the purified gas after the purification process of the polluted gas is completed.

The cleaning water tank 104, the pump 105, the washing water moving pipe 106, the spray nozzle (not shown), and the cleaning water tank 104 are provided in the respective purification tanks 101, 102, 107, and a drain 115.

The washing water tank 104 is a tank containing washing water. Where the rinse water may be pure water or may be water or other component liquid containing an adsorbent having adsorbent capacity for contaminants. The washing water in the washing water tank 104 is moved to the respective purification tanks 101, 102 and 103 through the washing water moving pipe 106 by the pumping action of the pump 105 and then flows to the end of the washing water moving pipe 106 And is injected into the inner space of each of the purification tanks 101, 102, and 103 through the provided injection nozzle 107.

Particularly, in the embodiment of the present invention, the spray nozzle 107 is located in the lower part of the inside of each of the purification tanks 101, 102, 103 and injects the washing water in the direction from the lower part to the upper part, do. The cleaning water droplets ejected from the ejection nozzles 107 for the polluted gas filling the inside of the respective purifying tanks 101, 102 and 103 are substantially equalized by the ejection pressure provided by the pumping action of the pump 105 It rises from the bottom to the top, and then draws a trajectory that falls by gravity from top to bottom. Since the washing water thus reciprocates up and down, the chance of contact with contaminants in the contaminated gas increases.

The washing water injected from the injection nozzle 107 is sucked or dissolved in the respective purification tanks 101, 102 and 103 while reciprocating up and down in the respective purification tanks 101, 102 and 103, And can be returned to the washing water tank 104 through the drain 115 installed. The washing water in the washing water tank 104 can be periodically exchanged.

FIG. 2 is a schematic view showing in detail the detailed structure of the point injection module of the point injection and upward injection type scrubber of FIG. 1; FIG.

2, in particular, between the gas inlet pipe 111 of the first purification tank 101 and one of the cleaning water injection nozzles 107 provided in the first purification tank 101, A point injection module 120 is provided.

The point dispense module 120 includes, in the example shown, a tube extension 121, a point dispense nozzle 123, and a raised portion 122.

The pipe extension part 121 is provided at the end of the gas inflow pipe 111 located inside the first purification tank 101 and extends in the radial direction of the gas inflow pipe 111, . The end of the gas inlet pipe 111, that is, the pipe extension portion 121, is located at the top of the first purifying tank 101.

The point injection nozzle 123 is one of the cleaning water injection nozzles 107 located inside the first purification tank 101. The point injection nozzle 123 is connected to the end of the gas inlet pipe 111 located at the upper part of the first purification tank 101, that is, the pipe extension part 121 And extends to an adjacent position. The point injection nozzle 123 is configured to inject the washing water at a position adjacent to the tube extension 121, particularly upwardly from the bottom of the tube extension 121, toward the tube extension 121.

Conical portion 122 is located between tube extension 121 and point injection nozzle 123 and is generally a cone-shaped member similar to a cone, for example, a narrow top and a wide bottom.

In this point injection module 120, the contaminated gas moves through the gas inflow pipe 111 and enters the first purifying tank 101 through the gap between the pipe extension part 121 and the cone part 122 do. At the same time as the contaminant gas is drawn in, the washing water is sprayed toward the tube extension 121 through the point injection nozzle 123, which is reflected by the cone 122, And is spread in a form spreading widely along the circumference. Accordingly, the polluted gas introduced through the gap between the pipe extension part 121 and the cone part 122 is contacted by the cleaning water spreading around the perforated part 122 and being relatively concentrated.

As described above, according to the structure of the point injection module 122 according to the present invention, the contaminated gas is introduced into the relatively narrow tube by the injection of the polluted gas and the washing water, and the inflowed pollutant gas is primarily introduced into the washing water Thereby making it possible to make a tight contact with each other.

Referring to FIG. 1 again, the scrubber 100 according to the present invention moves the contaminated gas purified by the washing water in the first purifying tank 101 to the subsequent purifying tank, that is, to the second purifying tank and then to the third purifying tank The gas passage is formed by a narrow pipe-shaped gas conveying pipe. In addition, the arrangement of the gas transfer tubes constitutes such that the movement path of the gas has the maximum length.

That is, as shown in the illustrated example, the end portion of the end of the gas inlet pipe 111 located inside the first purifying tank 101 is an inlet for injecting the polluting gas into the first purifying tank 101, 1 < / RTI >

The gas feed pipe 112 connecting the first purifying tank 101 and the second purifying tank 102 has one end for gas inflow is located at the lower one of the inside of the first purifying tank 101, And the other end is a lower-upper type gas transfer tube located at the upper one of the inside of the subsequent purifying tank 102.

The other gas transfer pipe 113 for connecting the second purifying tank 102 and the third purifying tank 103 has one end for gas inflow is located at the lower one of the inside of the second purifying tank 102, Is another lower-upper type gas transportation pipe located at the upper part of the inside of the third purification tank 103. [

The end of the gas discharge pipe 114 for discharging the purge gas from the third purifying tank 103 to the outside for the inflow of gas located inside the third purifying tank 103 is connected to the third purifying tank 103 ). The other end for gas outflow of the gas discharge pipe 114 is located outside the third purification tank 104 and may be connected to an additional pipe for a subsequent process.

According to this configuration, the length of the path of the polluted gas passing through each of the purification tanks 101, 102, and 103 can be maximized, so that the chance of contact between the washing water and the contaminants in the polluted gas can be increased.

3-5 are schematic perspective views illustrating the number and arrangement of purification tanks in the construction of the point injection and upward injection scrubber according to embodiments of the present invention.

Figure 3 illustrates a scrubber 30 of a type similar to the scrubber 100 described with reference to Figures 1 and 2. In the illustrated example, the scrubber 30 shows the internal structure of the first purifying tank 31, the second purifying tank 32, and the third purifying tank 33 arranged in a line so that the pollutant gases are sequentially introduced and moved in A top surface is disassembled to provide a washing water tank 34 and a pump 35 for supplying washing water. This example is a deployment configuration that is easy to install in a long, narrow space.

4, the scrubber 40 includes a first purifying tank 41, a second purifying tank 42, and a third purifying tank 43, which are arranged in a triangular shape so that the pollutant gases are sequentially introduced and moved, And shows the rinse water tank 44 and the pump 45 for supplying the rinse water. This example is a configuration that is easy to install in a short and wide space.

5, the scrubber 50 includes a first purifying tank 51 and a second purifying tank 52, which are arranged such that the pollutant gas is sequentially introduced and moved in such a manner that the top surface thereof is disassembled to show its internal structure, And a washing water tank 54 and a pump 55 for supplying washing water. This example is a configuration that is easy to install in a short and wide space. In this example, the second purifying tank 52 is the last purifying tank, and the purifying gas is discharged from the second purifying tank 52.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Of course, fall within the scope of the present invention.

(Brief Description of Symbols)

100: scrubber, 101, 102, 103: purifying tank

104: rinsing water tank, 105: pump

106: cleaning water transfer tube, 107: injection nozzle

111: gas inlet pipe, 112: gas feed pipe

113: gas transfer pipe, 114: gas discharge pipe

115: drain, 120: point injection module

121: tube extension part, 122:

123: Point injection nozzle

Claims (3)

At the same time, the cleaning water stored in the cleaning water tank 104 is pumped into the first purification tank 101 and the pollutants in the pollutant gas are injected into the first purification tank 101 The polluted gas in the first purifying tank 101 is sequentially transferred to the subsequent tank arrangement including the subsequent purifying tank 102 and 103 so that the cleaning water is sprayed and cleaned, And discharging the purge gas in a state where the purge gas is discharged,
An end of the first purifying tank (101), which is located inside the first purifying tank (101), has both ends to draw the polluted gas downward from the upper side of the first purifying tank (101) One gas inlet pipe 111,
One end of the first purifying tank 101 is connected to the interior of the subsequent purifying tank 102. One end of the first purifying tank 101 is located in the lower part of the interior of the first purifying tank 101, A gas transfer pipe 112 located in the upper part of the inside of the subsequent purifying tank 102,
One end of the purifying tank 102 is located at the lower one of the inside of the purifying tank 102 and the other end of the purifying tank 102 is connected to the other purifying tank 103, The other gas transfer pipe 113 located at the upper one of the inside of the subsequent purifying tank 103,
An end of the other downstream purge tank 103 located inside the other downstream purge tank 103 is connected to an upper end of the other downstream purge tank 103 The gas discharge pipe 114,
A plurality of cleaning water supply means for spraying the washing water in the washing water tank 104 upward from a lower portion of each of the first purifying tank 101, the subsequent purifying tank 102 and the other subsequent purifying tank 103, A point injection module (not shown) is installed between the gas inlet pipe 111 of the first purification tank 101 and one of the cleaning water injection nozzles 107 provided in the first purification tank 101, 120,
The point injection module 120
The gas inflow pipe 111 is provided at its end with a tube extension part 121 which is configured to extend the diameter of the gas inflow pipe 111 in the radial direction and to draw gas downward from the top,
One of the cleaning water injection nozzles 107 is a point injection nozzle 123 extending adjacent to a lower portion of the tube expansion part 121 and configured to inject wash water from the lower side toward the tube extension part 121, Respectively,
A trough 122 having a narrow upper part and a wider lower part is provided between the pipe extension part 121 and the point spraying nozzle 123,
As the polluted gas is drawn through the gap between the tube extension 121 and the cone 122, the washing water sprayed from the point spray nozzle 123 and reflected by the cone 122 Washed by
Wherein the injector comprises a point injector and an upwardly injectable scrubber. delete delete

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