KR102875932B1 - ultrapure water production system - Google Patents

Abstract

The present invention relates to an ultrapure water production device, wherein the ultrapure water production device comprises an air suction device coupled to the upper portion of a purified water tank or an injection solution tank, and the air suction device includes a body and a plurality of filter members installed inside the body, and the body may include an upper body, a filter lower fixing member coupled to a lower surface of the upper body, and a lower body coupled to a lower surface of the filter lower fixing member.

Description

Ultrapure water production system

The present invention relates to an ultrapure water manufacturing device, and more specifically, to an ultrapure water manufacturing device that is installed on the upper part of a purified water tank or an injection tank and can effectively remove foreign substances mixed in the external air.

Conventionally, ultrapure water used as cleaning water in the semiconductor industry or pharmaceutical industry is produced by treating raw water using an ultrapure water production device consisting of a pretreatment system (a1), a primary pure water system (a2), and a subsystem (a3), as shown in Fig. 1.

The roles of each system in Figure 1 are as follows.

In the pretreatment system (1) consisting of a coagulation, pressure flotation (sedimentation), and filtration (membrane filtration) device, suspended substances and colloidal substances in raw water are removed. In this process, it is also possible to remove high molecular weight organic substances and hydrophobic organic substances.

In the primary pure water system (a2) equipped with a reverse osmosis system (RO), a degassing device, and an ion exchange device, ions and organic components in the raw water are removed.

In reverse osmosis devices, salts are removed, as well as ionic and colloidal TOC (Total Organic Carbon).

In an ion exchange device, salts are removed and TOC components adsorbed or ion-exchanged by ion exchange resins are removed. In a degassing device, inorganic carbon (IC) and dissolved oxygen (DO) are removed.

In the subsystem (a3) equipped with a low-pressure ultraviolet oxidation device, an ion exchange pure water device, and an ultrafiltration membrane separation device, the purity of the pure water obtained in the primary pure water system (2) is further increased to produce ultrapure water.

In other words, in a low-pressure UV oxidation device, TOC is decomposed into organic acids and even carbon dioxide by ultraviolet rays with a wavelength of 185 nm from a low-pressure UV lamp. The organic substances and carbon dioxide produced by the decomposition are removed by the ion exchange resin in the subsequent stage. In an ultrafiltration membrane separation device, fine particles are removed, and particles leached from the ion exchange resin are also removed.

Ultrapure water from the subsystem (a3) is stored in a subtank and used at the point of use when needed. The subtank is equipped with an air intake device, but there is a problem with foreign substances mixed with the outside air flowing into the subtank.

Republic of Korea Patent No. 10-1959103 (registered on March 11, 2019)

The present invention relates to an ultrapure water manufacturing device, and more specifically, to an ultrapure water manufacturing device that is installed on the upper part of a purified water tank or an injection tank and can effectively remove foreign substances mixed in the external air.

The present invention relates to an ultrapure water production device, wherein the ultrapure water production device comprises an air suction device coupled to the upper portion of a purified water tank or an injection solution tank, and the air suction device includes a body and a plurality of filter members installed inside the body, and the body may include an upper body, a filter lower fixing member coupled to a lower surface of the upper body, and a lower body coupled to a lower surface of the filter lower fixing member.

According to one embodiment, the ultrapure water manufacturing device includes a primary pure water manufacturing unit, a pharmaceutical water manufacturing unit, and an injection water manufacturing unit, wherein the primary pure water manufacturing unit includes a reverse osmosis device, the pharmaceutical water manufacturing unit includes an ultraviolet sterilization device and a purified water tank, the injection water manufacturing unit includes a distilled water manufacturing device and an injection solution tank, and the air intake device includes a body and a plurality of filter members installed inside the body, wherein the body includes an upper body, a filter lower fixing member coupled to a lower surface of the upper body, and a lower body coupled to a lower surface of the filter lower fixing member, wherein the lower body has an air outlet provided at a lower center thereof, and the air outlet is coupled to an upper portion of the purified water tank or the injection solution tank of the ultrapure water manufacturing device, and the filter upper fixing member includes a filter upper fixing body having a disc shape, a fixing bar coupling hole formed at the center of the filter upper fixing body, and a filter coupling hole into which an upper fitting coupling hole of the filter member is forcibly fitted, and the filter coupling hole has a fixing bar coupling hole formed therebetween. A plurality of filter elements are installed by forming a vertically symmetrical shape, and an inlet hole is formed through the upper fixed body of the filter, and a plurality of inlet holes are formed at regular intervals along the circumferential direction, and the plurality of inlet holes can be formed downward at a certain angle obliquely with respect to a line crossing the radial direction.

The present invention has the effect of preventing a vacuum inside the system and removing foreign substances contained in the external air when circulating water circulating in a purified water tank or an injection tank is supplied to a pharmaceutical manufacturing facility or an injection manufacturing facility.

Figure 1 is a schematic diagram of a conventional ultrapure water manufacturing device.
Figure 2 is a schematic diagram of an ultrapure water manufacturing device according to the present invention.
Figure 3 is a schematic diagram of an air intake device according to the present invention installed.
Figure 4 is a cross-sectional view of an air intake device according to the present invention.
Figure 5 is a perspective view of a filter member according to the present invention.
Figure 6 is a plan view and a cross-sectional view of a filter lower fixing member according to the present invention.
Figure 7 is a schematic diagram showing a filter member fitted into a lower filter fixing member according to the present invention.
Figure 8 is a seal member and an installation drawing of the seal member according to the present invention.
Figure 9 is a plan view and a cross-sectional view of the upper fixing member of the filter according to the present invention.
Figure 10 is another embodiment of a filter upper fixing member according to the present invention.

The embodiments of this disclosure are provided for the purpose of illustrating the technical concepts of this disclosure. The scope of rights under this disclosure is not limited to the embodiments presented below or the specific descriptions of these embodiments.

All technical and scientific terms used in this disclosure, unless otherwise defined, have the meanings commonly understood by those of ordinary skill in the art to which this disclosure pertains. All terms used in this disclosure have been selected for the purpose of more clearly explaining this disclosure and are not intended to limit the scope of rights under this disclosure.

Expressions such as “including,” “comprising,” “having,” and the like used in this disclosure should be understood as open-ended terms that imply the possibility of including other embodiments, unless otherwise stated in the phrase or sentence in which the expression is included.

The singular forms described in this disclosure may include plural meanings unless otherwise stated, and the same applies to the singular forms described in the claims.

Hereinafter, a preferred embodiment of a rear side warning device for a large vehicle according to the present invention will be described in detail with reference to the attached drawings.

Referring to FIG. 2, the ultrapure water manufacturing device of the present invention includes a primary pure water manufacturing unit (10), a pharmaceutical water manufacturing unit (20), and an injection water manufacturing unit (30).

A pretreatment device may be further formed in the front end of the primary pure water production unit (10). In the pretreatment device, pretreatment of the raw water is performed through filtration, coagulation, sedimentation, precision filtration membrane, etc., and mainly suspended substances are removed.

The primary pure water production unit (10) is equipped with oxidation devices such as a reverse osmosis device (RO), a regenerative ion exchange device (not shown), an electric deionization device, and an ultraviolet sterilization device (not shown), and removes most of the electrolytes, fine particles, and live bacteria in the pretreated water.

The pharmaceutical water production unit (20) may include a purified water tank, a heat exchanger, and an ultraviolet sterilization device. Additionally, a desalination device, such as a degassing device, an RO device, or an electric deionization device, may be installed. Here, the pharmaceutical water may be supplied to a pharmaceutical production facility that produces liquid pharmaceuticals, such as Bacchus and drinks.

The injection water production unit (30) may further include a distilled water production device and a heat exchanger to further increase the purity of the purified water produced in the pharmaceutical water production unit (20). Here, the injection water may be supplied to, for example, an injection solution production facility.

Referring to Fig. 3, an air suction device (1) may be installed on the upper part of the purified water tank or the injection tank.

The above air suction device (1) is intended to introduce external air to prevent a vacuum inside the system, as the volume of the fluid inside the purified water tank or injection tank decreases when the circulating water circulating in the purified water tank or injection tank is supplied to the pharmaceutical manufacturing facility or injection manufacturing facility.

The circulating water flowing into the above tank can be sprayed into the upper space of the purified water tank or the injection tank.

Referring to FIG. 4, the air intake device (1) includes a body (100), a filter member (200) installed inside the body (100), an upper filter fixing member (400) into which the upper part of the filter member (200) is fitted, and a lower filter fixing member (300) into which the lower part of the filter member (200) is fitted.

The upper and lower parts of the filter fixing member (400) and the lower filter fixing member (300) are fixed vertically by a fixing bar (700) to prevent shaking.

The above body (100) includes an upper body (101), a filter lower fixing member (300) coupled with the lower surface of the upper body (101), and a lower body (102) coupled with the lower surface of the filter lower fixing member (300).

The upper body (101) has a cylindrical shape with the upper and lower parts open. An air inlet (103) is installed in the upper center of the upper body (101), and a temperature sensor installation hole (108) into which a temperature sensor is inserted and installed may be provided on one side of the upper part.

A heating wire (105) is provided on the outer periphery of the upper body (101) to prevent moisture present inside the body (100) from freezing in winter.

Accordingly, it is possible to prevent the efficiency of the filter member (200) from being reduced due to moisture condensing inside the filter member (200).

A case (106) may be further installed outside the above heating wire (105) to protect the body (100). An empty space may be formed between the heating wire (105) and the case (106) to prevent overheating of the heating wire (105).

The lower body (102) has a hemispherical shape with an empty interior, and a filter lower fixing member (300) is attached to the upper surface, and an air outlet (104) may be provided in the lower center.

The above air outlet (104) can be connected to the upper part of the purified water tank or the injection tank through a known welding connection or flange connection.

A through hole (1021) through which a moisture discharge pipe (500) passes may be formed on one side of the lower body (102).

Air drawn in through the air inlet (103) can be drawn into the tank through the air outlet (104) after having contaminants filtered out by the filter member (200) inside the body (100).

A contamination detection sensor installation port (107) into which a contamination detection sensor (not shown) is inserted and installed may be further provided on one side of the above air outlet (104).

The lower surface of the upper body (101) can form a contact surface by being in close contact with the upper surface of the filter lower fixing member (300) along the outer periphery.

Outside the above-mentioned contact surface, the upper body (101) and the filter lower fixing member (300) can be detachably connected by surrounding the contact surface using a known clamp (600).

Referring to FIG. 5, the filter member (200) may include a filter body and a filter accommodated therein.

The above filter body may include an upper fitting joint (201), a filter main body (202) extending downward from the upper fitting joint (201), and a lower fitting joint (203) formed at the lower portion of the filter main body (202).

The above filter body (202) has a cylindrical shape, and a plurality of suction ports (2021) can be formed at regular intervals along the vertical and circumferential directions.

A multi-stage coupling member (2022) is formed in the above filter body (202), so that the filter can be used by increasing or decreasing its length in the vertical direction. A plurality of multi-stage coupling members (2022) may be provided.

The above-described lower fitting joint (203) may include a first coupling portion (2031), a first ring-shaped groove portion (2032) formed on the upper side of the first coupling portion (2031), a second coupling portion (2033) formed on the upper side of the first groove portion (2032), a second ring-shaped groove portion (2034) formed on the upper side of the second coupling portion (2033), and a pair of protruding pieces (2035) formed on the upper side of the second groove portion (2034).

A ring-shaped sealing member (S) is fitted into the first and second grooves (2032, 2034) above, and the sealing member (S) is fitted into the filter fastening hole (303) described below to prevent leakage of external air.

The above-described embodiment describes an example using two seal members (S), but the number can be increased or decreased as needed.

Referring to FIGS. 6 and 7, the filter lower fixing member (300) includes a filter lower fixing body (301) in the shape of a disk, a fixing bar fastening groove (302) formed in the center of the filter lower fixing body (301), a plurality of filter member fastening holes (303) formed symmetrically with the fixing bar fastening groove (302) in between, and an air exhaust hole (304) formed at the bottom of the filter member fastening hole (303).

A screw thread is formed in the above fixed bar fastening groove (302), and the screw thread formed at the bottom of the fixed bar (700) can be combined with the screw thread.

The above filter member fastening hole (303) is formed symmetrically vertically with the fixed bar fastening groove (302) in between, so that a plurality of filter members (200) can be installed.

The above filter member fastening member (303) may include a fastening hole (3031) into which the lower fitting joint (203) of the filter member (200) is fitted, a step (3032) formed at the lower end of the fastening hole (3031), and a pair of insertion pieces (3033) protruding from the upper surface of the filter member fastening member (303).

The sealing member (S) of the filter member (200) can be fitted into the above-mentioned joining hole (3031), and the first joining part (2031) of the lower fitting joint (203) of the filter member (200) can be fitted into the above-mentioned step (3032).

The protruding part (2035) of the filter member (200) can be rotatably fitted into the above insertion part (3033).

In addition, a moisture discharge hole (305) may be formed vertically and horizontally at a point of the filter lower fixed body (301). A moisture discharge pipe (500) may be fitted into the moisture discharge hole (305) from the outside through a through hole (1021) formed in the lower body (102).

Therefore, moisture condensed inside the upper body (101) can be discharged to the outside of the body (100) through the moisture discharge pipe (500).

A semicircular seal groove (306) in which a seal member (S) is inserted along the outer circumference may be formed on the upper surface of the filter lower fixed body (301).

Referring to Fig. 8(a), the sealing member (S) is a ring-shaped material made of rubber or synthetic material, and a protrusion (S2) protruding upward and downward is formed in the center along the circumferential direction, and a sealing member (S1, S3) can be formed on the radially inner and outer sides of the protrusion (S2).

Referring to Fig. 8(b), the protrusion (S2) is fitted into the recessed groove and the seal groove (306) formed on the lower surface of the upper body (101), respectively, and the contact portions (S1, S3) are in close contact with the recessed groove and the seal groove periphery, and these can be tightly coupled from the outside using a clamp (600).

Referring to Fig. 9, a filter upper fixing member (400) can be installed at the upper center of the upper body (101).

The filter upper fixing member (400) may be formed with a filter upper fixing body (401) in the shape of a disk, a fixing bar joining hole (402) formed in the center of the filter upper fixing body (401), and a filter joining hole (403) into which the upper fitting joint (201) of the filter member (200) is forcibly fitted.

The above filter coupling hole (403) is formed symmetrically vertically with the fixed bar coupling hole (402) in between, so that a plurality of filter members (200) can be installed.

Since the present invention can be installed by combining a filter member (200) into each of a plurality of filter coupling holes (403), even if one filter member (200) is blocked by a contaminant, it has the effect of being able to filter out the contaminant in the external air by using another filter member (200).

An inlet hole (404) may be formed through the upper fixed body (401) of the filter. A plurality of inlet holes (404) may be formed at regular intervals along the circumferential direction.

External air introduced through the air inlet (103) formed at the upper portion of the upper body (101) can be introduced into the filter member (200) through the inlet path (405) formed between the upper filter fixing member (400) and the upper body (101).

However, if the area of the above inlet passage (405) is narrow, the inflow of external air is not smooth, but if the inlet hole (404) is formed, the inflow of external air into the filter member (200) can be smooth.

Referring to FIG. 10(a), the plurality of inlet holes (404) may be formed downward at a certain angle obliquely with respect to a line crossing the radial direction.

The above-mentioned inclination angle may be the same for multiple inlet holes (404). This may provide a cyclone effect to the incoming external air, allowing air to be evenly introduced into the entire filter element (200).

As shown in Fig. 10(b), the upper surface of the filter upper fixed body (401) may be horizontal and the lower surface may have a shape in which the center is thick and the thickness becomes thinner as it goes in the radial direction.

Accordingly, the cyclone effect can be further increased by reducing the overall volume of the upper fixed body (401) of the filter while lengthening the flow path of the inlet hole (404).

Furthermore, the upper fixed body (401) of the filter may have a shape in which the upper surface is a symmetrical streamlined shape and the lower surface is thick in the center and becomes thinner in the radial direction, as shown in Fig. 10(c).

Accordingly, since air is supplied along the streamline formed on the upper surface of the upper filter fixed body (401), air can be more smoothly introduced into the filter member (200).

In an embodiment of the present invention, when fixing the filter member (200) inside the body (100), the lower fitting hole (203) is fitted into the filter member fastening hole (303) formed in the filter lower fixing member (300), the lower part of the fixing bar (700) is screwed into the fixing bar fastening groove (302) formed in the center of the filter lower fixing member (300), and then the upper fitting hole (201) of the filter member (200) is fitted into the filter fitting hole (403) of the filter upper fixing member (400), and at the same time, the fixing bar (700) is inserted through the fixing bar fastening hole (402) formed in the center of the filter upper fixing member (400), and then the upper end of the fixing bar (700) is fastened using a fastening member such as a bolt, thereby firmly fixing the filter member (200) inside the body (100).

The present invention operates as follows. Purified water purified through the primary pure water production unit (10) is supplied to the pharmaceutical water production unit (20), and some of the purified water is supplied to the injection water production unit (30), thereby further increasing the purity.

The above pharmaceutical water can be supplied to a pharmaceutical manufacturing facility that manufactures liquid pharmaceuticals such as Bacchus and drinks, and the injection water can be supplied to an injection manufacturing facility.

An air suction device (1) is provided on the upper part of the purified water tank included in the pharmaceutical water production unit (20) or the injection solution tank included in the injection water production unit (30).

The above air suction device (1) prevents a vacuum inside the system from being created by external air being introduced into the system when the circulating water circulating in the purified water tank or the injection tank is supplied to the pharmaceutical manufacturing facility or the injection manufacturing facility. In addition, a plurality of filter elements (200) are provided inside the air suction device (1) to remove foreign substances contained in the external air.

Although the above-described embodiments have described the most preferred examples of the present invention, it is not limited to the above-described embodiments, and it is obvious to a person skilled in the art that various modifications are possible within a scope that does not depart from the technical spirit of the present invention.

1: Air intake device
10: Primary Pure Manufacturing Department
20: Pharmaceutical Water Manufacturing Department
30: Injection water manufacturing department
100: Body
101: Upper body
102: Lower body
103: Air inlet
104: Air exhaust port
105: Hot wire
106: Case
107: Contamination detection sensor installation hole
108: Temperature sensor installation hole
200: Filter absence
201: Top fitting joint
202: Filter body
2021: Intake
2022: Multi-stage joint
203: Bottom fitting joint
2031: First Combination
2032: First Home Division
2033: Second Junction
2034: Second Home Division
2035: The Protrusion
300: Filter lower fixing member
301: Filter lower fixed body
302: Fixed bar fastening groove
303: Filter member fastening hole
3031: Combined hole
3032: Single chin
3033: Insert
304: Air exhaust hole
305: Water discharge hole
306: Seal Home
400: Filter upper fixing member
401: Filter upper fixed body
402: Fixed bar joint
403: Filter joint
404: Inlet
405: Inlet
500: Water discharge pipe
600: Clamp
700: Fixed bar

Claims (2)

In ultrapure water manufacturing equipment,
The above ultrapure water manufacturing device includes a primary pure water manufacturing unit, a pharmaceutical water manufacturing unit, and an injection water manufacturing unit,
The above primary pure water production unit includes a reverse osmosis device, the pharmaceutical water production unit includes an ultraviolet sterilization device and a purified water tank, and the injection water production unit includes a distilled water production unit and an injection solution tank.
The above ultrapure water manufacturing device is equipped with an air suction device coupled to the upper part of the purified water tank or the injection tank,
The above air intake device includes a body, a plurality of filter elements installed inside the body, and a filter upper fixing element into which the upper portions of the filter elements are fitted.
The body includes an upper body, a filter lower fixing member coupled with the lower surface of the upper body, and a lower body coupled with the lower surface of the filter lower fixing member.
The lower body is provided with an air outlet at the lower center, and the air outlet is connected to the upper part of the purified water tank or injection tank of the ultrapure water manufacturing device.
The above filter upper fixing member is formed with a filter upper fixing body in the shape of a disc, a fixing bar joining hole formed in the center of the filter upper fixing body, and a filter joining hole into which the upper fitting hole of the filter member is forcibly fitted.
The above filter joint is formed symmetrically vertically with a fixed bar joint in between, and multiple filter elements are installed.
An inlet hole is formed through the upper fixed body of the filter, and a plurality of inlet holes are formed at regular intervals along the circumferential direction.
An ultrapure water manufacturing device in which the above plurality of inlet holes are formed obliquely downward at a certain angle with respect to a line crossing the radial direction. delete