KR20050122310A - Water tank of a square panel shape - Google Patents

Water tank of a square panel shape Download PDF

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Publication number
KR20050122310A
KR20050122310A KR1020040047388A KR20040047388A KR20050122310A KR 20050122310 A KR20050122310 A KR 20050122310A KR 1020040047388 A KR1020040047388 A KR 1020040047388A KR 20040047388 A KR20040047388 A KR 20040047388A KR 20050122310 A KR20050122310 A KR 20050122310A
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KR
South Korea
Prior art keywords
manhole
tank
water tank
exhaust
cover
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KR1020040047388A
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Korean (ko)
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KR100580273B1 (en
Inventor
박계화
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주식회사 삼양테크
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Priority to KR1020040047388A priority Critical patent/KR100580273B1/en
Publication of KR20050122310A publication Critical patent/KR20050122310A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/10Manholes; Inspection openings; Covers therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/02Wall construction
    • B65D90/023Modular panels
    • B65D90/026Parallel slats
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/22Safety features
    • B65D90/32Arrangements for preventing, or minimising the effect of, excessive or insufficient pressure
    • B65D90/34Venting means
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B11/00Arrangements or adaptations of tanks for water supply
    • E03B11/02Arrangements or adaptations of tanks for water supply for domestic or like local water supply

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
  • Sewage (AREA)

Abstract

본 발명은 사각패널형 물저장탱크에 관한 것이다.The present invention relates to a rectangular panel water storage tank.

본 발명은 다수의 사각패널(1)을 부착하고 상면에 맨홀이 장치된 공지의 물탱크에 있어서, 측면에 배기부(16)가 형성된 배기패널(13)을 탱크통체(2)의 상면에 돌출되게 설치하며, 맨홀(21)을 여닫는 덮개(22)가 접동로울러(23)에 의하여 슬라이딩 되도록 장치한 것으로서, 물탱크 내부에서 발생되는 염소가스가 배기부로써 자연 방출되며, 맨홀의 덮개를 손쉽게 개폐할 수 있도록 한 유익한 발명인 것이다.According to the present invention, in a known water tank having a plurality of rectangular panels (1) attached thereto and having a manhole on the upper surface, the exhaust panel (13) having an exhaust portion (16) formed on the side surface protrudes on the upper surface of the tank cylinder (2). It is installed so that the cover 22 for opening and closing the manhole 21 is slid by the sliding roller 23, and chlorine gas generated in the water tank is naturally discharged as the exhaust, and the cover of the manhole is easily opened and closed. It is a profitable invention that makes it possible.

Description

사각패널형 물저장탱크{water tank of a square panel shape}Water tank of a square panel shape

본 발명은 대용량의 물을 저장하기 위한 물저장탱크에 관한 것으로, 특히 식수에 함유된 염소가스의 방출이 원활하게 이루어져 탱크의 내부가 부식되는 것을 방지할 수 있으며, 또한 맨홀의 개폐문짝이 슬라이딩되도록 하여 적은 힘으로 안전하게 사용할 수 있도록한 사각패널형 물저장탱크에 관한 것이다.The present invention relates to a water storage tank for storing a large amount of water, and in particular, the discharge of chlorine gas contained in the drinking water can be smoothly prevent the corrosion of the inside of the tank, so that the opening and closing door of the manhole is sliding The present invention relates to a rectangular panel water storage tank that can be used safely with low power.

일반적으로 산업단지나 주거단지와 같이 대용량의 식수가 공급되어야 하는 경우에 식수를 저장하기 위한 패널형 물탱크가 사용되고 있다.In general, a panel type water tank for storing drinking water is used when a large amount of drinking water needs to be supplied, such as an industrial complex or a residential complex.

이러한 패널형 물탱크는 사각패널을 연결하여서 된 탱크통체 내부에 다수의 보강대를 설치하여 내구력이 유지되도록 구성되어 있으며, 내식성 및 무독성 재질인 스테인레스강을 사용하므로서 식수의 안전성이 보장되도록 구성하였다.These panel type water tanks are constructed to maintain durability by installing a number of reinforcing rods inside the tank body by connecting the square panel, and to ensure the safety of drinking water by using stainless steel, which is corrosion-resistant and non-toxic material.

그러나, 상기한 종래의 물탱크는 식수를 소독하기 위하여 함유된 붕사로 부터 염소가스가 방출되며, 이러한 염소가스에 의하여 물탱크의 내측 상부가 부식되는 문제가 제기되었다.However, in the conventional water tank described above, chlorine gas is released from borax contained in order to disinfect drinking water, and the chlorine gas has a problem that the upper portion of the water tank is corroded.

이러한 문제를 해결하기 위한 수단으로서, 물탱크의 상부측에 송풍수단을 장치하여 내부의 염소가스가 외부로 배출되도록 구성한 것이 있으나, 이는 계속적인 전기공급이 이루어져야 할 뿐 아니라, 수시로 점검하여야 되는 불편함이 있었다.As a means to solve this problem, there is a configuration in which the chlorine gas from the inside to be discharged to the outside by installing a blowing means on the upper side of the water tank, which is not only a continuous supply of electricity, but also inconvenient to check from time to time There was this.

즉,상기 물탱크는 지하등과 같이 사람이 근접하기 어려운 곳에 설치되고 자주 점검하기 어려운 문제가 있을 뿐 아니라 상기 송풍수단이 대형인 물탱크 상부에 장치되어 있기 때문에 이를 점검하기 위하여는 작업자가 사다리를 이용하여 물탱크 상부로 올라가야 되므로 그 작업이 매우 불편할 뿐 아니라 점검을 저주 못하게 되어 송풍수단이 고장난 상태로 방치되는 경우가 많아 결국 염소가스에 의한 부식을 방지하지 못하였으며, 상기 송풍수단은 고장발생이 빈번하고 장시간 사용하면 교체하여야 되는 것으로 이러한 수리와 교체를 하기 위하여 많은 인력괴 비용이 소모되었다.That is, the water tank is installed in places where people are difficult to come close to, such as underground lights, there is a problem that is difficult to check frequently, and because the blower is installed in the upper portion of the large water tank in order to check this, the worker uses a ladder Since the work is very inconvenient because the water tank is to be used up, it is not convenient to curse the inspection, and the air blowing means is often left in a broken state, and thus the corrosion by chlorine gas cannot be prevented. This frequent and prolonged use requires replacement, which has cost a lot of manpower to repair and replace.

또한, 물탱크의 내부를 점검및 청소하기 위하여, 물탱크통체의 상부에 설치된 맨홀 덮개를 개폐하여야 되며,이러한 덮개를 열기 위하여 작업자가 중량이 큰 덮개를 맨홀로 부터 들어 올린 후 적당한 장소에 놓아두고 작업이 완료되면 재차 덮개를 덮어야 되므로 그 작업이 매우 불편하였으며, 주위 작업 여건이 좋지않기 때문에 덮개를 들어 올리고 내리는 과정 중에 안전사고가 발생하는 등의 문제가 제기되었다.In addition, in order to inspect and clean the inside of the water tank, the manhole cover installed on the upper part of the water tank cylinder must be opened and closed.In order to open such a cover, the operator lifts a heavy cover from the manhole and puts it in a proper place. The work was very inconvenient because the cover had to be covered again when the work was completed, and the safety accidents were raised during the process of lifting and lowering the cover because of poor working conditions.

본 발명은 상기한 문제를 해결하기 위하여 연구 개발된 것으로서, 물탱크 내부에 저장된 물로부터 발생되는 염소가스가 물탱크의 상부에 구비된 배기수단을 통하여 자연배출되게 하므로서 점검이나 고장의 염려없이 반영구적으로 염소가스를 배출하여 내부의 부식을 방지하도록 하는데 그 기술적과제가 있다.The present invention has been researched and developed in order to solve the above-mentioned problem, so that the chlorine gas generated from the water stored in the water tank is naturally discharged through the exhaust means provided in the upper portion of the water tank, semi-permanently There is a technical problem to prevent the internal corrosion by chlorine gas emissions.

본 발명의 다른 기술적과제는 물탱크의 상부에 설치된 맨홀의 덮개가 슬라이딩식으로 개폐되도록 하여 개폐를 손 쉽게 할 수 있을 뿐 아니라 덮개를 개폐하는 과정 중에 발생할 수 있는 안전사고를 예방할 수 있는 것이다.Another technical problem of the present invention is to allow the cover of the manhole installed on the upper portion of the water tank to be slidably opened and closed to easily open and close and prevent safety accidents that may occur during the process of opening and closing the cover.

본 발명은 내부에 식수를 저장하기 위하여 다수의 사각패널을 부착하여서 탱크통체를 형성하고 탱크통체의 상면에 맨홀이 설치된 공지의 물탱크에 있어서, 측면 하부에 부착부가 형성되고 측면 상부에 다수의 통공이 형성된 배기판넬을 상기 물탱크의 상면에 돌출되게 장치하며, 상기 맨홀의 일측 하부에 접동로울러를 장치하여 레일을 따라 접동로울러가 구동되도록 장치하여 구성된 것이다.The present invention is a well-known water tank in which a tank cylinder is formed by attaching a plurality of square panels to store drinking water therein and a manhole is installed on the upper surface of the tank cylinder. The exhaust panel is formed so as to protrude on the upper surface of the water tank, the sliding roller is installed on one side lower portion of the manhole is configured to drive the sliding roller along the rail.

이하, 본 발명의 구성 및 이에따른 작용을 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the configuration and the operation of the present invention in detail as follows.

도1은 본 발명의 실시예로서 중요부를 보인 사시도이며, 도2는 본 발명의 배기수단을 보인 사시도이며, 도3은 본 발명의 배기수단을 보인 단면도이며, 도4는 배기수단의 실시예를 보인 일부의 확대단면도이며, 도5는 본 발명의 맨홀을 보인 사시도이며, 도6은 본 발명의 맨홀의 단면도이다.1 is a perspective view showing an important part as an embodiment of the present invention, Figure 2 is a perspective view showing the exhaust means of the present invention, Figure 3 is a sectional view showing the exhaust means of the present invention, Figure 4 is an embodiment of the exhaust means 5 is an enlarged cross-sectional view of a portion shown, FIG. 5 is a perspective view showing a manhole of the present invention, and FIG. 6 is a cross-sectional view of the manhole of the present invention.

본 발명은 도1에 도시된 바와같이, 중앙부에 보강돌조(1a)가 돌출 형성된 사각패널(1)을 다수개 부착하여서 전체가 사각통체 형상으로 된 탱크통체(2)를 구성하며, 탱크통체(2)의 상면(2a)에 배기수단(10)과 맨홀개폐수단(20)을 각각 구성한다.The present invention, as shown in Figure 1, by attaching a plurality of rectangular panels (1) having a reinforcement protrusion (1a) protruding in the center to constitute a tank cylinder (2) in the shape of a square cylinder, the tank cylinder ( The exhaust means 10 and the manhole opening and closing means 20 are respectively formed on the upper surface 2a of 2).

상기 배기수단(10)은 도2와 도3에 도시된 바와같이, 상면(11)에 원형의 보강돌조(12)를 돌출형성된 배기패널(13) 측면(14)을 하방으로 길게 연장하여 측면(14)의 하방에 부착부(15)가 구비되고 측면(14)의 상부에 다수의 통공(15)으로 형성된 배기부(16)가 구비되도록 구성하여서, 상기 탱크통체(2)의 상면(2a)에 배기패널(13)이 돌출되도록 설치한다. 이렇게 설치된 배기패널(13)은 부착부(15)가 측방의 사각패널(1)과 용접으로 부착되고 배기부(16)가 상부로 돌출되어 통공(15)을 통하여 탱크통체(2)의 내외부가 관통되도록 구성한다.As shown in FIGS. 2 and 3, the exhaust unit 10 extends downwardly from the side surface 14 of the exhaust panel 13, which protrudes from the upper surface 11, into a circular reinforcement protrusion 12. 14 is provided below the attachment portion 15 and the exhaust portion 16 formed of a plurality of through holes 15 in the upper portion of the side surface 14, so that the upper surface (2a) of the tank cylinder (2) The exhaust panel 13 is installed to protrude. In the exhaust panel 13 installed as described above, the attachment part 15 is attached to the side rectangular panel 1 by welding, and the exhaust part 16 protrudes upward, so that the inside and the outside of the tank cylinder 2 are provided through the through hole 15. Configure to penetrate.

상기 배기수단(10)은 물탱크의 용량이나 크기에 따라 적정위치에 다수개 사용할 수 있으며 염소가스의 배출이 신속하게 이루어질 수 있도록 설치 갯수와 위치를 임의로 선정할 수 있다.The exhaust means 10 may be used in a plurality of suitable positions according to the capacity or size of the water tank, and can be arbitrarily selected the number and location of installation so that the discharge of chlorine gas can be made quickly.

상기 맨홀개폐수단(20)은 도5와 도6에 도시된 바와같이, 맨홀(21)의 상부를 여닫을수 있는 덮개(22)를 구성하여 덮개(22)의 후방측 하단에 접동로울러(23)를 장치하며, 덮개(22)의 후방측에 위치된 상기 탱크통체(2)의 상면(2a)에 레일(24)를 고정설치하여서, 접동로울러(23)가 레일(24)을 따라 전후로 슬라이딩되도록 장치한다.As shown in FIGS. 5 and 6, the manhole opening and closing means 20 constitutes a cover 22 that opens and closes the upper part of the manhole 21, and has a sliding roller 23 at the lower rear side of the cover 22. The rail 24 is fixed to the upper surface 2a of the tank cylinder 2 located on the rear side of the lid 22 so that the sliding roller 23 slides back and forth along the rail 24. Device.

미설명부호 25는 덮개(22)의 손잡이이다.Reference numeral 25 is a handle of the cover (22).

이와같이 구성된 본 발명은 산업단지나 주거단지등과 같이 식수가 대량으로 필요한 곳에 설치하여 식수를 저장하는 용도로서 통상의 방법으로 사용한다.The present invention configured as described above is installed in a place where a large amount of drinking water is required, such as an industrial complex or residential complex, and is used in a conventional manner as a use for storing drinking water.

본 발명의 탱크통체(2)에 저장되어 있는 식수는 함유되어 있던 염소가스가 방출되며, 이러한 염소가스는 도3에 도시된 바와같이 상부로 상승되어 배기패널(10)에 형성된 다수의 통공(15)을 통하여 외부로 배출되므로 염소가스가 탱크통체(2) 내부에 지체하는 일 없이 신속히 배출되므로 부식을 방지할 수 있는 것이다.Drinking water stored in the tank cylinder 2 of the present invention is discharged chlorine gas contained, the chlorine gas is raised to the top as shown in Figure 3 a plurality of through holes formed in the exhaust panel 10 (15) Since the chlorine gas is quickly discharged without delay in the tank body (2) because it is discharged to the outside through) to prevent corrosion.

또한, 상기한 배기수단(10)의 실시예로서, 도4에 도시된 바와같이, 배기패널(31)과 부착부(32)를 지지프레임(33)으로 고정하고 배기패널931)과 부착부(32)사이에 "L" 형의 배기부(34)를 부착형성하면, 외부로 부터 벌레가 불의하게 투입되는 것을 방지할 수 있다.In addition, as an embodiment of the exhaust means 10, as shown in Fig. 4, the exhaust panel 31 and the attachment portion 32 are fixed by the support frame 33, and the exhaust panel 931 and the attachment portion ( By attaching and forming the "L" type exhaust part 34 between 32, it is possible to prevent the insect from being inadvertently introduced from the outside.

그리고, 탱크통체(2) 내부를 청소하거나 점검하기 위하여는 작업자가 맨홀(21)을 통하여 출입하는 것으로서, 도 5과 도6에 도시된 바와같이, 손잡이(25)를 잡고 덮개(22)를 상부측으로 약간 들어 올리면 접동로울러(23)가 레일(24)에 접지되므로 덮개(22)를 후방측으로 밀면 접동로울러(23)에 의하여 적은 힘으로 덮개(22)가 이동되면서 맨홀(21)이 개방된다. 맨홀(21)이 충분히 개방되면 들어 올렸던 손잡이(25)를 놓으면 덮개(22)가 자중에 의하여 맨홀(21)의 상면 일측에 단정한 상태로 놓여지는 것이다.And, in order to clean or check the inside of the tank cylinder (2) as the operator enters through the manhole (21), as shown in Figs. 5 and 6, holding the handle 25, the cover 22 is top When lifted slightly to the side, the sliding roller 23 is grounded to the rail 24. When the cover 22 is pushed to the rear side, the manhole 21 is opened while the cover 22 is moved by the sliding roller 23 with a small force. When the manhole 21 is fully open, the handle 25 is lifted and the cover 22 is placed neatly on one side of the upper surface of the manhole 21 by its own weight.

탱크통체(2) 내부의 청소와 점검이 완료되어 맨홀(21)을 닫고자 할 경우에는 개방의 역순으로 손잡이(25)를 잡고 덮개(22)를 전진하여 시키면 접동로울러(23)가 슬라이딩되면서 원위치되어 맨홀(21)이 닫혀지는 것이다.When the inside of the tank cylinder 2 is cleaned and checked, and the manhole 21 is to be closed, hold the handle 25 in the reverse order of opening and move the cover 22 forward to move the sliding roller 23 to its original position. The manhole 21 is closed.

상기한 바와같이 본 발명은 물탱크 내부에서 발생되는 염소가스가 배기수단을 통하여 자연 방출되도록 하므로서 물탱크 내부가 부식되는 것을 방지함은 물론 간단한 구조로서 종래와 같이 점검이나 고장의 염려없이 반영구적으로 사용할 수 있는 효과가 있다.As described above, the present invention allows the chlorine gas generated inside the water tank to be naturally discharged through the exhaust means, thereby preventing corrosion of the water tank inside, and of course, as a simple structure, it can be used semi-permanently without the risk of inspection or failure as in the prior art. It can be effective.

또한, 맨홀을 개폐하는 덮개가 접동로울러에 의하여 슬라이딩되도록 구성하므로서 적은힘으로 간편하게 맨홀을 개폐할 수 있을 뿐 아니라, 작업여건이 좋지 않은 곳에서 맨홀을 개폐하는 과정 중에 발생할 수 있는 안전사고를 예방할 수 있는 것이다.In addition, since the cover for opening and closing the manhole is configured to slide by the sliding roller, the manhole can be easily opened and closed with a small force, and can prevent safety accidents that may occur during the process of opening and closing the manhole in a poor working condition. It is.

본 발명은 패널형 물탱크 뿐 아니라 각종 저장탱크에 쉽게 적용하여 실용화할 수 있으며, 기존의 시스템을 크게 변화시키지 않으면서 당 업계에서 큰 문제로 대두되고 있는 가스의 방출을 원화하게 할 수 있는 유익한 발명인 것이다.The present invention can be easily applied to various types of storage tanks as well as panel type water tanks and can be practically used, and it is an advantageous inventor that can make the emission of gas, which is a big problem in the art, without significantly changing the existing system. will be.

도 1 은 본 발명의 실시예를 보인 중요부의 사시도1 is a perspective view of an important part showing an embodiment of the present invention

도 2 는 본 발명의 배기수단을 보인 사시도Figure 2 is a perspective view of the exhaust means of the present invention

도 3 은 본 발명의 배기수단을 보인 일부를 확대한 단면도Figure 3 is an enlarged cross-sectional view showing a part of the exhaust means of the present invention

도 4 는 배기수단의 실시예를 보인 일부의 확대단면도4 is an enlarged cross-sectional view of a part showing an embodiment of the exhaust means;

도 5 는 본 발명의 맨홀을 보인 사시도5 is a perspective view showing a manhole of the present invention

도 6 은 본 발명의 맨홀을 보인 단면도Figure 6 is a cross-sectional view showing a manhole of the present invention

*도면의 주요부분에 대한 부호 설명** Description of symbols on the main parts of the drawings *

1: 사각패널 2: 탱크통체 10: 배기수단 14: 측면 DESCRIPTION OF SYMBOLS 1: Square panel 2: Tank body 10: Exhaust means 14: Side

15: 통공 16: 배기부 20: 맨홀개폐수단 21: 맨홀15: through-hole 16: exhaust part 20: manhole opening and closing means 21: manhole

22:덮개 23:접동로울러 24: 레일22: cover 23: sliding roller 24: rail

Claims (1)

다수의 사각패널(1)을 부착하여 탱크통체(2)을 형성하고 탱크통체(2)의 상면(2a)에 맨홀수단(20)이 장치된 공지의 물탱크에 있어서, 측면(14)에 배기부(16)와 부착부(15)가 상하로 구비된 배기패널(13)을 상기 탱크통체(2)의 상면(2a)에 배기부(16)가 돌출되도록 설치하며, 상기 맨홀수단(20)의 덮개(22)의 후방측에 접종로울러(23)를 장치하여 레일(24)을 따라 접동로울러(22)가 슬라이딩되도록 장치하여 구성된 것을 특징으로 하는 사각패널형 물저장탱크.In a well-known water tank in which a plurality of rectangular panels 1 are attached to form a tank cylinder 2 and a manhole means 20 is provided on the top surface 2a of the tank cylinder 2, the tank 14 is disposed on the side surface 14. An exhaust panel 13 having a base 16 and an attachment portion 15 disposed up and down is installed so that the exhaust portion 16 protrudes from the upper surface 2a of the tank cylinder 2, and the manhole means 20 Square panel type water storage tank, characterized in that configured to the sliding roller 22 along the rail (24) by mounting the inoculation roller (23) on the rear side of the cover (22).
KR1020040047388A 2004-06-24 2004-06-24 water tank of a square panel shape KR100580273B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100778108B1 (en) * 2006-04-25 2007-11-26 주식회사 성지기공 a stainless water tank
KR100890458B1 (en) * 2007-07-27 2009-03-26 (주식회사)문창 Stainless steel water storage tank

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102618501B1 (en) 2023-05-17 2023-12-29 주식회사 문창 Sliding inspection port for water tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100778108B1 (en) * 2006-04-25 2007-11-26 주식회사 성지기공 a stainless water tank
KR100890458B1 (en) * 2007-07-27 2009-03-26 (주식회사)문창 Stainless steel water storage tank

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