KR102506526B1 - Duct having air purifier - Google Patents

Abstract

A duct equipped with an air purification device, according to the present invention, is installed above a clean room and comprises: an inlet duct communicating with the inside of the clean room; a blowing duct connected to the inflow duct and equipped with a blower that provides suction to the duct; a bag filter placed between the inlet duct and the blowing duct and storing incoming dust; a sterilization duct connected to the blowing duct and equipped with a UV lamp that kills microorganisms within incoming air; a neutralization duct connected to the sterilization duct and equipped with a neutralizing liquid spray nozzle that neutralizes chemicals included in dust within the incoming air; a reactor connected to the neutralization duct and equipped with an irradiation unit that irradiates the incoming air with microwaves to raise temperature to kill the microorganisms; a constant temperature duct connected to the reactor and equipped with a mesh filter that forms condensate by lowering the temperature of the incoming air; and an outlet duct which is connected to the constant temperature duct and discharges air. Therefore, dust that flows into a duct is not re-discharged from the duct.

Description

Duct with air purifier {DUCT HAVING AIR PURIFIER}

The present invention relates to a duct equipped with an air purifier, and more particularly, to a duct installed in a clean room of a pharmaceutical factory to maintain cleanliness.

In order to improve the quality of medicines manufactured and researched in pharmaceutical factories, it is necessary to set up an appropriate environment in consideration of cleanliness, temperature, and humidity conditions in consideration of cross-contamination, foreign matter contamination, and worker protection inside the clean room.

Regarding this, there are regulations according to Global GMP (Good Manufacturing Practice: Quality Management Standards for Pharmaceutical Manufacturing) in relation to injections, but there are no detailed regulations for “other than injections”.

However, even when manufacturing or researching drugs other than injections, dust from raw materials is easily dispersed, so cleanliness must be maintained. Considering the occurrence of microorganisms or molds, it is desirable to keep the temperature below 23℃ and humidity below 55%. do.

Therefore, an air purifying device that can maintain the temperature at 23° C. and humidity at 55% or less while maintaining the cleanliness of the room is required, and the air purifying device must be installed so as not to interfere with the work in the clean room.

Republic of Korea Patent Publication 10-2009-0004377 (published on 2009.01.12)

The duct equipped with an air purifying device according to the present invention is a duct used in a clean room of a pharmaceutical company, and can provide a duct equipped with an air purifying device adopting a structure in which dust sucked into the duct is not re-emitted to the duct. let it be

In addition, it is possible to provide a duct equipped with an air purifier capable of killing microorganisms that may be included in inhaled dust.

In addition, it is possible to provide a duct equipped with an air purifying device capable of neutralizing the drug inside the inhaled dust so that it is not discharged to the outside.

In addition, it is possible to provide a duct equipped with an air purifying device capable of reheating after neutralization to kill microorganisms and at the same time preventing the temperature in the clean room from rising to appropriately maintain the temperature.

In addition, it is possible to provide a duct equipped with an air purifier capable of removing moisture contained therein by condensing air after reheating.

A duct with an air purifying device according to the present invention is a duct installed at the top of a clean room, and includes an inlet duct communicating with the inside of the clean room, a blower duct connected to the inlet duct and providing suction power to the duct, and , A bag filter disposed between the inlet duct and the blowing duct to store the introduced dust, a sterilization duct connected to the blowing duct and equipped with a UV lamp for killing microorganisms in the introduced air, connected to the sterilizing duct, A neutralization duct in which a neutralization liquid injection nozzle for neutralizing chemicals contained in dust in the air is disposed, and an irradiation unit connected to the neutralization duct and irradiating microwaves to the inlet air to raise the temperature to kill microorganisms. It includes a reactor, a constant temperature duct connected to the reactor and having a mesh filter configured to lower the temperature of the introduced air to form condensed water, and a discharge duct connected to the constant temperature duct to discharge air.

A bag filter housing having one side connected to the inlet duct and the other side communicating with the blowing duct and forming a space where the bag filter is accommodated is disposed between the inlet duct and the blowing duct of the duct equipped with the air purifier according to the present invention. Steps are formed on the inlet duct and the front edge of the bag filter housing to prevent dust introduced into the bag filter housing from moving through the inlet duct, and the inlet duct is bent up and down so that the introduced dust is not discharged.

The sterilization duct of the duct equipped with the air purifier according to the present invention is formed higher than the height of the blowing duct to form a lamp installation portion in which a UV lamp is disposed, and the UV lamp is disposed in the lamp installation portion to reduce the flow resistance of the UV lamp. let it

The neutralization duct of the duct equipped with an air purifier according to the present invention protrudes upward to form a nozzle installation portion in which a neutralization liquid spray nozzle is disposed, and an inclined surface inclined in one direction is formed on the lower surface, and the neutralization liquid A tray having through-holes penetrating vertically is disposed between the spray nozzle and the inclined surface, and a neutralization liquid accommodating tank for accommodating the liquid moved by the inclined surface communicates with one side of the neutralization duct.

One side of the supply pipe communicates with the lower side of the neutralization duct of the duct having an air purifier according to the present invention, and the other side of the supply pipe is connected to the lower part of the reactor in which the irradiation unit for irradiating microwaves is disposed, and the upper part of the reactor is connected to an exhaust pipe through which air heated by microwave irradiation is discharged, the exhaust pipe is connected to a constant temperature duct in which a mesh filter having a lower temperature than the heated air is disposed, and a HEPA filter is placed between the mesh filter and the discharge duct in the constant temperature duct. and a carbon filter are disposed.

The reactor of the duct equipped with an air purifying device according to the present invention is formed in a cylindrical shape, and a partition wall that equally divides the internal space of the reactor based on the center of the reactor is disposed therein, and the upper end of the supply pipe is equally divided. A lower cover that opens and closes the lower part of the inner space of the reactor is disposed in communication, and an upper cover that opens and closes the lower part of the inner space of the equally divided reactor is disposed in communication with the lower cover at the lower end of the exhaust pipe. A reactor drive motor for rotating the reactor is disposed.

A thermoelectric element connected to the mesh filter and lowering the temperature of the mesh filter is disposed on the outer surface of the constant temperature duct of the duct equipped with the air purifier according to the present invention.

The duct having an air purifying device according to the present invention is connected to a bag filter through a duct that is continuously bent vertically when air is introduced, so that dust and the like introduced into the duct are not re-emitted through the duct, and the UV lamp There is an effect of first killing microorganisms in the air by using , spraying a neutralizing liquid into the air in which the microorganisms are killed to neutralize chemicals in dust, and storing and discharging them in a separate tank.

In addition, by heating the air after neutralization using microwaves, there is an effect of maintaining the overall temperature and inducing additional death of microorganisms.

In addition, there is an effect of condensing air heated through microwaves to increase humidity in the air, and removing residual dust and microorganisms using a HEPA filter and a carbon filter.

1 is a purifying process of a duct equipped with an air purifying device according to an embodiment of the present invention.
2 is a conceptual diagram of a duct with an air purifying device according to the present invention performing the purification process according to FIG. 1;
3 is a perspective view of the reactor shown in FIG. 2;

Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only, and may be modified and implemented in various forms. Therefore, the embodiments are not limited to the specific disclosed form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Although terms such as first or second may be used to describe various components, such terms should only be construed for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element.

It should be understood that when an element is referred to as being “connected” to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle.

Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "have" are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, but one or more other features or numbers, It should be understood that the presence or addition of steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this specification, it should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, a duct equipped with an air purifier according to the present invention will be described in detail with reference to the drawings.

1 is a purifying process of a duct with an air purifying device according to an embodiment of the present invention, and FIG. 2 is a conceptual diagram of a duct with an air purifying device according to the present invention performing the purifying process according to FIG. 1, 3 is a perspective view of the reactor shown in FIG. 2;

A duct equipped with an air purifier according to an embodiment of the present invention is a duct used in a clean room of a pharmaceutical company, and a duct equipped with an air purifier according to the present invention is a clean room so as not to interfere with workers and researchers during their work. As shown in FIG. 1 as a duct installed at the top, foreign matter in the air introduced through the inflow duct 10, one side of which communicates with the inside of the clean room, is filtered out by the bag filter 120, and the air introduced through UV sterilization The air is purified in the order of killing microorganisms inside, neutralizing chemicals contained in dust in the air, and discharging through high-temperature sterilization and anti-temperature sterilization.

As shown in FIG. 2, the ducts equipped with air purifiers that purify air in this order include an inlet duct 10, a blowing duct 100, a bag filter 120, a sterilization duct 200, and a neutralization duct 300. ), a reactor 410, a constant temperature duct 500, and a discharge duct 20.

In each duct, a bag filter 120 is disposed on the right side of the inlet duct 10 with reference to FIG. Sterilization duct 200 at the right end of the duct 100, neutralization duct 300 at the right end of the sterilization duct 200, reactor 410 at the right side of the neutralization duct 300, constant temperature duct at the top of the reactor 410 ( 500) is connected, and the discharge duct 20 is connected to the end of the constant temperature duct 500.

The left end of the inlet duct 10 is connected through the ceiling of the clean room with reference to FIG. 2 to form a flow path that introduces air inside the clean room and delivers it to the bag filter 120 connected to the right side of the inlet duct 10. it is a duct

A bag filter 120 is connected to the right end of the inlet duct 10 to filter dust having a large particle size in the air introduced through the inlet duct 10 . At the top of the bag filter 120, suction power is provided to the inlet duct 10, and the air introduced through the inlet duct 10 is passed through the sterilization duct 200, the neutralization duct 300, the reactor 410, and the constant temperature duct. 500 and a blower 110 for moving air to the exhaust duct 20 are disposed.

The blowing duct 100 connected to the bag filter 120 may be disposed in the same direction as the inlet duct 10, but in the case of the same arrangement, dust introduced through the inlet duct 10 is disposed on the right side of the bag filter 120. Since the blower duct 100 is placed above the bag filter 120 to form a counterclockwise air flow upward in the bag filter 120, the bag filter It is possible to minimize the discharge of the dust introduced into the duct 120 to the inlet duct 10 .

The blowing duct 100 is a duct in which the blower 110 is installed, and as shown in FIG. 2, an opening connected to the blower that comes into contact with the outer surface of the bag filter 120 is formed at the lower left corner, and the sterilization duct 200 is formed at the right end. ) and an opening communicating with it is formed.

A sterilization duct 200 for killing microorganisms using a UV lamp 210 is disposed at an opening at the right end of the blowing duct 100 . It is preferable that a plurality of UV lamps 210 inside the sterilization duct 200 are disposed along the longitudinal direction of the sterilization duct 200 in order to increase the killing efficiency of microorganisms.

On the right side of the sterilization duct 200, a neutralization duct 300 in which a neutralizing liquid injection nozzle 310 for neutralizing chemicals contained in dust in the air is disposed. In the air introduced through the inlet duct 10, chemicals other than microorganisms killed in the sterilization duct 200 may be included in the form of fine dust. Since these chemicals are not removed by the ultraviolet rays emitted from the UV lamp 210, it is preferable to neutralize the chemicals. Therefore, the neutralization duct 300 is disposed with a spray nozzle 310 for spraying a neutralizing agent for neutralizing chemicals in the air in a liquid form.

The liquid neutralizer sprayed by the spray nozzle 310 is configured to be sprayed through the spray nozzle 310 by storing various neutralizers in a separate tank according to the chemicals used in the clean room. A tank for storing the neutralizing agent, a pump for supplying the neutralizing agent to the injection nozzle 310, etc. are general configurations and descriptions thereof are omitted in the present invention.

On the right side of the neutralization duct 300, a reactor 410 is disposed to kill microorganisms remaining in the air. In the reactor 410, an irradiation unit 430 for irradiating electromagnetic waves is disposed so that the temperature can be raised using moisture in the air introduced through the neutralization duct 300. Therefore, when the irradiation unit 430 irradiates microwaves, the temperature of the moisture in the air introduced into the reactor 410 is raised to kill microorganisms that are not killed even by ultraviolet rays.

In general, when the temperature is raised to kill microorganisms, the temperature of the air can be raised through a heating coil, etc. In this case, the heating coil raised to a high temperature to raise the temperature of the air can raise the temperature of the clean room, In the case of using a microwave, when using a microwave that raises only the temperature of the air in the reactor 410, the effect on the temperature of the clean room is kept to a minimum.

Since the temperature of the air passing through the reactor 410 is raised through the microwave, it may contain a large amount of moisture inside the air. Therefore, the reactor 410 is connected to a constant temperature duct 500 in which a mesh filter 510 for forming condensed water by lowering the temperature of the introduced air is disposed.

The mesh filter 510 is configured in a net shape using a metal material having high thermal conductivity so as to increase the contact surface with air, and condenses moisture in the air by lowering the temperature of the air introduced into the constant temperature duct 500 .

A discharge duct 20 for discharging purified air is disposed at the right end of the constant temperature duct 500 where the mesh filter 510 is disposed. The discharge duct 20 communicates with the inside of the clean room to circulate and purify the air inside the clean room, and may discharge it to the outside of the clean room depending on the embodiment.

Since the bag filter 120 for accommodating dust with large particles in the air introduced through the inlet duct 10 is disposed in a replaceable bag shape, the left end between the inlet duct 10 and the blowing duct 100 is the inlet duct 10 and connects a bag filter housing 122 in which a bag filter 120 having an upper part communicating with the blowing duct 100 is disposed to be replaceable.

A step 122a is formed at the left end of the bag filter housing 122 to prevent dust introduced into the bag filter housing 122 from being discharged through the inflow duct 10 . In addition, as shown in FIG. 2, the inlet duct 10 is preferably bent up and down so that the introduced dust is not discharged.

The sterilization duct 200 described above is a duct whose left end is connected to the blowing duct 100 and whose right end is connected to the neutralization duct 300, and the sterilization duct 200 is formed higher than the height of the blowing duct 100. Thus, a lamp installation unit 212 in which the UV lamp 210 is disposed is formed. The lamp installation unit 212 is formed higher than the height of the blowing duct 100 to minimize the occurrence of air flow resistance by the UV lamp 210 in consideration of the height of the UV lamp 210 .

The neutralization duct 300 protrudes upward from the height of the blowing duct 100 to form a nozzle installation portion 312 in which the neutralization liquid injection nozzle 310 is disposed. Since the neutralization liquid sprayed from the neutralization liquid spray nozzle 310 is in liquid form, the lower surface of the neutralization duct 300 is inclined in one direction so that the liquid neutralized by contact with the neutralization liquid can be moved in one direction ( 302) is formed, and the neutralization liquid accommodating tank 330 accommodating the liquid moving by the inclined surface 302 communicates with the outside of the neutralization duct 300 through a connection pipe 330a.

Between the lower surface 302 and the neutralization liquid injection nozzle 310, a plurality of through-holes ( A tray 320 on which a drawing (not shown) is formed is disposed.

The reactor 410 irradiates the introduced air with microwaves, and a supply pipe 420 communicating with the lower part of the reactor 410 is connected to the lower right end of the neutralization duct 300, and the upper part of the reactor 410 An exhaust pipe 440 through which air heated by irradiation of microwaves is discharged is connected. Therefore, the remaining microorganisms in the air introduced into the reactor 410 through the supply pipe 420 are killed by the air heated by the microwave and discharged through the exhaust pipe 440 .

The exhaust pipe 440 is connected to a constant temperature duct in which a mesh filter 510 is disposed, and a HEPA filter 520 and a carbon filter 530 are placed at the rear end of the mesh filter 510 in the constant temperature duct to remove fine particles. Filter dust and residual microorganisms.

At this time, the reactor 410 is formed in a cylindrical shape as shown in FIG. 3 in order to increase the effect of raising the temperature of the air, and partition walls 410a that equally divide the internal space of the reactor 410 based on the center of the reactor 410 therein. Forming a lower cover 410c for opening and closing the lower part of the internal space of the reactor 410 divided equally at the upper end of the supply pipe 420 is disposed in communication with the supply pipe 420, and the lower end of the exhaust pipe 440 is evenly spaced. An upper cover 410d, which opens and closes the lower part of the internal space of the divided reactor 410, may be disposed in correspondence with the lower cover 410c, and at this time, the irradiation unit 430 is divided by the partition wall 410a. Reactors 410 are arranged so as to irradiate microwaves to the inner space, respectively.

Therefore, in the reactor 410, air is sealed and disposed between the partition wall 410a, the lower cover 410c, and the upper cover 410d, and microwaves are irradiated to more effectively induce the temperature increase of the air, and the irradiation unit ( 430 may be sequentially driven to increase durability of the irradiation unit 430 .

At this time, as shown in FIG. 2, a reactor driving motor 412 for rotating the reactor 410 is disposed on one side of the reactor 410, and a belt insertion groove 410b is formed on the lower side of the reactor 410. The reactor rotation belt 414 is connected to the rotation shaft of the reactor drive motor 412 and the belt insertion groove 410b to rotate the reactor 410 while the lower cover 410c and the upper cover 410d are fixed. In the supply pipe 420 and the exhaust pipe 440, dampers (not shown) are disposed to open and close each pipe in conjunction with the operation of the blower 110.

In addition, as shown in FIG. 3, the lower cover 410c and the upper cover 410d are each formed in a pair of arc shapes, and the supply pipe 420 and the exhaust pipe 440 connected to the respective covers 410c and 410d are branched. The engine 422 and the exhaust branch pipe 442 may be formed. In the case of forming the supply branch pipe 422 and the exhaust branch pipe 442 in this way, air between the respective covers 410c and 410d and the partition wall 410a can increase the temperature, so that the remaining microorganisms in the air can be killed more efficiently.

Referring to FIG. 2 , a thermoelectric element 512 connected to the mesh filter 510 and lowering the temperature of the mesh filter 510 is disposed on the outer surface of the constant temperature duct 500 to control the temperature of the mesh filter 510. can do. At this time, a condensate receiving portion 514 for accommodating condensed water condensed by air contacting the mesh filter 510 is connected to the condensate connection pipe 514a at the lower part of the mesh filter 510 and the outer surface of the constant temperature duct 500. .

Therefore, the humidity of the air passing through the mesh filter 510 may be maintained below 55% according to the temperature of the mesh filter 510 .

As described above, although the embodiments have been described with limited drawings, those skilled in the art can apply various technical modifications and variations based on the above. For example, the described techniques may be performed in an order different from the method described, and/or components of the described system, structure, device, circuit, etc. may be combined or combined in a different form than the method described, or other components may be used. Or even if it is replaced or substituted by equivalents, appropriate results can be achieved.

10: inlet duct 20: discharge duct
100: blower duct 110: blower
120: bag filter 122: bag filter housing
122a: stepped
200: sterilization duct 210: UV lamp
212: lamp installation unit
300: neutralization duct 302: slope
310: neutralization liquid injection nozzle 312: nozzle installation unit
320: tray 330: neutralized liquid receiving tank
330a: connector
410: reactor 412: reactor drive motor
414: reactor rotating belt 420: supply pipe
422: supply branch 430: investigation unit
440: exhaust pipe 442: exhaust manifold
500: constant temperature duct 510: mesh filter
512: thermoelectric element 514: condensate receiving unit
514a: condensate connector 520: HEPA filter
530: carbon filter

Claims (7)

As a duct installed at the top of the clean room,
An inlet duct communicating with the inside of the clean room;
a blower duct connected to the inlet duct and provided with a blower providing a suction force;
a bag filter disposed between the inflow duct and the blowing duct to store the introduced dust;
a sterilization duct connected to the blowing duct and equipped with a UV lamp for killing microorganisms in the introduced air;
a neutralization duct connected to the sterilization duct and having a neutralization liquid injection nozzle disposed thereon to neutralize chemicals contained in dust in the introduced air;
a reactor connected to the neutralization duct and disposed with an irradiation unit that irradiates the introduced air with microwaves to raise the temperature to kill microorganisms;
a constant temperature duct connected to the reactor and having a mesh filter configured to form condensed water by lowering the temperature of the introduced air; and
A discharge duct connected to the constant temperature duct to discharge air,
A bag filter housing is disposed between the inlet duct and the blowing duct, one side of which is connected to the inlet duct and the other side of which is in communication with the blowing duct, and which forms a space for accommodating the bag filter therein. Steps are formed on the leading edge to prevent dust introduced into the bag filter housing from moving through the inlet duct, and the inlet duct is bent up and down so that the introduced dust is not discharged.
The sterilization duct is formed higher than the height of the blowing duct to form a lamp installation portion in which the UV lamp is disposed, and the UV lamp is disposed in the lamp installation portion to reduce flow resistance of the UV lamp,
The neutralization duct protrudes upward to form a nozzle installation portion in which the neutralization liquid injection nozzle is disposed, and an inclined surface inclined in one direction is formed on a lower surface thereof, and an upper and lower portion is formed between the neutralization liquid injection nozzle and the inclined surface. A tray having a through hole is disposed, and a neutralization liquid receiving tank for accommodating the liquid moved by the inclined surface communicates with one side of the neutralization duct,
One side of a supply pipe is communicated with the lower side of the neutralization duct, and the other side of the supply pipe is connected to the lower part of the reactor in which an irradiation unit for irradiating microwaves is disposed therein, and the upper part of the reactor is air heated by irradiation of microwaves. is communicated with an exhaust pipe through which the air is discharged, and the exhaust pipe is connected to a constant temperature duct in which a mesh filter having a temperature lower than that of the heated air is disposed, and a HEPA filter and a carbon filter are disposed between the mesh filter and the exhaust duct in the constant temperature duct. A duct equipped with an air purifier, characterized in that.
delete delete delete delete According to claim 1,
The reactor
formed in a cylindrical shape,
A barrier rib dividing the inner space of the reactor equally based on the center of the reactor is disposed therein,
At the upper end of the supply pipe, a lower cover for opening and closing the lower part of the equally divided inner space of the reactor is disposed in communication with each other,
At the lower end of the exhaust pipe, an upper cover for opening and closing the lower part of the equally divided inner space of the reactor is disposed in communication with the lower cover,
A duct with an air purifier, characterized in that a reactor drive motor for rotating the reactor is disposed on one side of the reactor.
According to claim 1,
A duct with an air purifier, characterized in that a thermoelectric element connected to the mesh filter and lowering the temperature of the mesh filter is disposed on an outer surface of the constant temperature duct.

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