-
会社紹介
SMC貯水タンクの特徴
SMC(Sheet Molding Compound)貯水タンクは、高温・高圧の油圧プレスで加圧成形したパネルで、熱変形温度が200℃以上であり、熱硬化性樹脂の圧縮成形により不溶・不融性を持つという特徴があります。SMC貯水タンクに貯蔵される水の温度は、常温で素材自体の劣化(熱老化)現象が発生しません。
多様な容量設計
多様な規格と形状のパネルは、容量と水平・垂直の設置空間を最大限活用する構造で、お客様のニーズをしっかり満たすことができ、様々なパネルを使用してL字型、コの字型、ロの字型の貯水タンクも設置が可能です。
優れた衛生性
SMCパネルは、食品衛生法の規定に即して、光を完全に遮断するためバクテリアや雑菌が増殖せず、高温・圧縮成形を行うことで表面の美麗さや強度が向上し、素材自体の腐食を抑えられます。また、SMC生産時には、環境ホルモンを発生させる恐れのある物質に指定された原料を使用しないため、人体に害を及ぼしません。
完璧な水密製
耐候性及び復元力に優れた特殊なSealing材を使用し、完璧な水密性を誇ります。
強度及び耐久性
SMC先端複合素材を高温・高圧プレス成形を行うことで、最高の耐水圧強度を維持しています。また、貯水タンクの内部構造物はSTS(ステンレス)を適用し、外部構造物は溶融亜鉛めっき処理を施すことにより、耐腐食性に優れています。
優れた保温性と結露防止機能
SMC独自の断熱性を持つ3重構造の保温(25mm、50mm)パネルは保温性に優れています。
優れた施工性と運搬性
数値安全性の高いパネルは、施工期間を短縮させ、空間の狭い現場でも資材の搬入や移設作業が簡単に行えます。
High Quality
Hi Tank pursues an optimal system through quality management with strict design standard and reliable structural stress analysis.
A critical aspect in structural analysis is the design according to safety factor at a threshold level.
Serim’s expertise lies in the design of optimal safety factor considering the expected external forcebased on the physicalpropertiesoftheSMCmaterialafterlong-termuseofmorethan15years.
Since Hi Tank does not take account of the initial value (100%) of the SMC properties but only considers the minimum value (70%) and safety factor while designing, SERIM Hi Tank guarantees long-term durability.
SMC Degradation Process
Physical properties
Designed external force
Water load in the tank,
dead load,
snow load,
wind load,
live load and seismic load
Design standardsDesigned external force > Threshold level ÷ Safety factor
| Item | Guaranteed Load Conditions |
|---|---|
| Earthquake | Horizontal seismic intensity Kh=2/3G |
| Hydrostatic | Water Level(Height in Meters) × |
| pressure | 0.1kgf/cm2(0.01MPa) |
| Snow load | 60kg/m2 |
| Wind load | Below 60m/sec |
| Illumination | Less than 0.1% |
| Water temperature | Cold and hot water is used up to 50℃ |
Best Hygienic Properties
With the use of excellent corrosion-resistant panels, the surface of the tank is uniformly smooth without any moss growth and enables long-term use as the panels inhibit the proliferation of bacteria and other various germs by perfectly blocking all the light from outside.
Materials for Reinforced Components
| Inside | for Liquid part | Stainless Steel [STS] |
|---|---|---|
| for Air part | Plastic or corrosion - resistant material | |
| Outside | Steel + hot galvanizing |
As chlorine gas remains in the air area and this may corrupt the SUS and other metals, it is critical that anti-corrosion materials are selected.
Product with Inferior Hygienic Properties
-
When light penetrates in the tank
Moss and microorganism grow
-
When general STS bolts are used in the air area
Corrosion occurs due to chloride gas
-
Welded type air area of the STS tank
Corrosion occurs due to chloride gas
Advantages of Hi-TANK GRP water tank
Hi-TANK GRP water tank uses convex type panels for the base. The convex type panel is designed that any increase in water pressure closes the bottom panels joints and the joints are sealed with a special rubber sealant. And the combination of convex type panels with a concave type drain panel ensures complete and faster drainage and the drain panel was specially designed to facilitate periodic water tank cleaning and inspection.
Necessity of Cell Antibacterial Function
-
Serious contamination by rusting inside Stain water tank
-
Water tank installed in places where direct supply of tap water is not available
Bad water condition
Failure to perform regular cleaning
Propagation of bacteria and algae
-
Examples of poorly managed tanks
Water tank using only the best material for hygiene improvement
A non-toxic antimicrobial in which a zeolite carrier is substituted with an antibacterial metal (Ag)
Differences from organic antimicrobial
- Stable at high temperature
- No volatility or exudation
- Long-lasting antimicrobial power
Patent registered (Patent No. 0492751)
Results of panel performance evaluation
| Item | Performance standard | Test result | |
|---|---|---|---|
| Mechanical strength | 1) Tensile strength | 60MPa | 86 |
| 2) Flexural strength | Over 80MPa | 191 | |
| 3) Flexural modulus | Over 6000MPa | 13262 | |
| 4) Barcol hardness | Over 30 | 41 | |
| 5) Absorption power | Less than 1% | 0.2 | |
| Exudation of harmful components | 1) Heavy metal | Less than 0.1%ppm | Not detected |
| 2) Consumption of KOn04 | Less than 10ppm | 2.8 | |
| 3) pH | 5.8~8.6 | 7.5 | |
| 4) Phenol | Less than 0.005ppm | Not detected | |
| 5) Evaporation residual oil | Less than 30ppm | 3.2 | |
| Antimicrobial power | 1) Escherichia coli | Over 95% | 99.0% |
| 2) Yellow staphylococcus | Over 95% | 99.0% |
Characteristics of antibacterial SMC panel
SMC with inorganic antibacterial
Excellent mechanical strength with reinforced plastic
Hazardous component leaching test pass
Strong antibacterial effect over 99%
Antimicrobial test photo
Antibacterial test (control sample)
Antibacterial test (Zio tank)Performance standard : Conformed to S mark inspection standard (SF-4811-11) of Korea Chemical Testing and Research Institute.
Pathogenic Escherichia coli and Staphylococcus aureus are harmful bacteria causing food poisoning.
Optimal structural design
With years of expertise in structure design, we provide perfect structure safety.
We performed structure analysis by the Finite Element Method to secure reliability on a reinforcement system, the strength of panels and pursue the optimal design. By inputting all possible factors such as hydrostatic pressure, seismic load, snow load, wind load, etc. We estimated the stress and distortion level. Through intensive reinforcement on the part with maximum stress, we aimed to design the best stable system.
Structure Analysis Flowchart
Stress Analysis of the Panel(FEM)
By modeling the entire system of the basic design, we evaluate the level of stress when inputting loads and find out the part where the maximum stress occur. With repetitive improvement of designing, we establish an optimal system of high reliability.
Long-term Durability Test(Field test)
Generally, there is more than one water depletion and filling up a water tank per day on the average.
Therefore, if the tank is used for 15 years, approximately 4000 times of water circulation would occur and the tank would sustain about 4000 repetitive loads.
Stress Analysis of the Panel(FEM)
By modeling the entire system of the basic design, we evaluate the level of stress when inputting loads and find out the part where the maximum stress occur. With repetitive improvement of designing, we establish an optimal system of high reliability.
Strain Gauge Test
Long-term Durability Test(Field test)
Generally, there is more than one water depletion and filling up a water tank per day on the average.
Therefore, if the tank is used for 15 years, approximately 4000 times of water circulation would occur and the tank would sustain about 4000 repetitive loads.
Before launching new product into the market, Hi Tank undergoes field tests to check for water leakage and other defects by applying the expected repetitive loads of water circulation to two tanks every day and night for about 6months.
Such tests make us possible to guarantee the safety and durability of Hi Tank.
SERIM HI TANK
-
01 Air-Vent(ABS)
With PE-mesh insect-guard
02 Water tightness
Maintains perfect water tightness by using sealing tape of PVC foam which is excellent for inhibiting the effects of weathering and for its restorative ability.
-
03 Outstanding Thermal Effect
Prevents freezing and dew condensation as it demonstrates outstanding thermal effect due to the inherent thermal resistance of the SMC material and polyurethane heat-insulating materials.
04 Level Adjustable Foundation
Replaces concrete foundation
Allows to make easy and speedy construction
Allows to adjust a very fine tolerance
05 External Ladder
Aluminum
-
06 Manhole
Convenient & close structure
Mounted special lock
07 Internal Ladder
UPVC
-
08 Lower Water-discharging Panel Structure at the Bottom Area
Uses lowered drainage panel on the bottom so that it can collect and discharge the water.
HI TANK OFFERS
External Reinforcement System.
The External Reinforcement System refers to a system that has been designed to support stress that occurs due to the hydrostatic pressure exerted on the outer part of the tank.
The minimized use of reinforcing materials inside the tank, Hi Tank provides perfect hygiene and convenience of easy cleaning for customers.
Combined Reinforcement System at 1~3mH
-
Inside at 1mH
-
Sectional view of the inside at 1mH
-
Inside at 2mH
-
Sectional view of the inside at 2mH
-
Inside at 3mH
-
Sectional view of the inside at 3mH
-
01 Air-Vent(ABS)
With PE-mesh insect-guard
02 Water tightness
Maintains perfect water tightness by using sealing tape of PVC foam which is excellent for inhibiting the effects of weathering and for its restorative ability.
-
03 Outstanding Thermal Effect
Prevents freezing and dew condensation as it demonstrates outstanding thermal effect due to the inherent thermal resistance of the SMC material and polyurethane heat-insulating materials.
04 Level Adjustable Foundation
Replaces concrete foundation
Allows to make easy and speedy construction
Allows to adjust a very fine tolerance
05 External Ladder
Aluminum
-
06 Manhole
Convenient & close structure
Mounted special lock
07 Internal Ladder
UPVC
-
08 Lower Water-discharging Panel Structure at the Bottom Area
Uses lowered drainage panel on the bottom so that it can collect and discharge the water.
HI TANK OFFERS
External Reinforcement System.
Combined reinforcement system means a system designed to support pressure caused by hydrostatic pressure applied inside and outside the tank.
Combined reinforcement system is a system developed for high-level tanks and big tanks.
As a substantial action for preventing corrosion due to chlorine gas, the air area is designed without any internal reinforcing materials.
Combined Reinforcement System at 3~5mH
-
Inside at 3mH
-
Sectional view of the inside at 3mH
-
Inside at 4mH
-
Sectional view of the inside at 4mH
-
Inside at 5mH
-
Sectional view of the inside at 5mH
Characteristics
-
Can be installed in Maximum Capacity of a Same-Sized Place
When installing tanks for different usage in a narrow space such as underground rooms and partition, it can be installed for the maximum capacity.
-
Diversification of Usage
By installing partitions, you can use one tank for drinking and the other tank for other purposes(e.g. fire hydrant, etc.)
-
Easy Maintenance
As two tanks are installed in one-piece, it is easy to maintain the tank. Even during cleaning, suspension of water supply can be avoided owing to use of compartments.
-
Low Price
Compared with installing each tank for a different usage, the entire prices including installation expenses are lower.
Installation Example
-
Front view of the partition
-
Rear view of the partition
Since partition panels receive repetitive loads from both the front and back, when installing the panels that are under water pressure, we use the same designed panel that are used for the bottom panels.
Also, a compartment tank is structurally safe due to the fact that the bottom part and the ceiling part are mutually connected and fixed onto partition.
Free Capacity Design
The tank is suitable for large-sized underground reservoirs as its structure utilizes horizontal and vertical spaces at the maximum through the use of diverse sizes of panels.
| Allowable height for installation of the tank | Allowable capacity for installation of the tank |
|---|---|
| 1.0~5.0min height | 1~5,000tons (A tank with a capacity exceeding 5,000tons may be installed through individual design) |
-
General square type
-
L-shape type
-
Center-vacant square type
-
Rectangular-shape type
-
C-shape type
-
Rectangular-shape type
-
C-shape type
※The corner-usage type system creates maintenance space due to the fact that the tank is installed apart from the pillar, regardless of the location of the pillar.
※When installing the tank through lining-processing with FRP, if the pillar takes the role of a wall, it may cause inferiority in the structure intensity of the body and the reinforcement system.
パネルの構成
回転式で高低の調節が可能なスチールステーと上・下部の受け板で構成されており、ソケットでそれぞれの基礎の両端を固定し、システム化した貯水タンクの基礎パッドです。
Side Panel Composition Standards by Height
Types and Shapes
Side panel
Bottom panel
Celling panel
Drainage panel / Manhole panel
Technical Help
- To prevent dew condensation in the water tank
-
To check the dew condensation in the tank, identify the difference between the inside of water temperature and the outside of tank temperature.
Draw a line vertically at the point and mark the point (A) where the line meets the curve representing the relative humidity inside the tank.
Draw an oblique line to the dew point temperature curve and mark it contact point (B).
Point (B) is the dew point temperature that dew condensation may occur.
- Occurrence of dew condensation
-
Dew point temperature < the temperature inside the tank : Dew condensation does not occur.
Dew point temperature > the temperature inside the tank : Dew condensation occurs.
- Handling of dew condensation
-
It is important to lower the relative humidity in the tank.
It is important to complement the ventilation/duct system for the size of the tank.
Specifications for Hi Tank
1.パネルの設置が可能な規格及び箇所
| 区分 | パネル規格 | フィッティング規格 | 箇所 | 設置位置 |
|---|---|---|---|---|
| 側板 | 1000x2000 | up to 200A | 2 | Upper, lower |
| 500x2000 | up to 150A | 2 | Upper, lower | |
| 1000x1300 | up to 125A | 4 | corner | |
| 500x1300 | up to 125A | 2 | Upper, lower | |
| 1000x1000 | up to 100A | 4 | corner | |
| 500x500 | up to 300A | 2 | Whole face | |
| 専用パネル | 500x1000 | up to 300A | 1 | Whole face |
フィッティング専用パネル(500x1000)は、模様のない平板型であるため、出水管や消火管などを設置する高さを決める際に自由な設計が可能です。
2.Type and Size of the Fittings
Socket-type
| D | D1 | D2 | D3 | |
|---|---|---|---|---|
| 20A | 55 | 33.5 | 21.4 | 38 |
| 25A | 65 | 40 | 30.3 | 46 |
| 30A | 79 | 49 | 39 | 55 |
| 40A | 85 | 55 | 45 | 61 |
| 50A | 98 | 66.5 | 56.7 | 72 |
| 65A | 120 | 84 | 72.2 | 93 |
| 75A | 132 | 97 | 85 | 105 |
| 100A | 170 | 120 | 110 | 127 |
Flange-type
| D1 | D2 | |
|---|---|---|
| 65A | 140 | 175 |
| 80A | 150 | 185 |
| 100A | 175 | 210 |
| 125A | 210 | 250 |
| 150A | 240 | 280 |
| 200A | 290 | 330 |
What is SERIM HI-FOUNDATION?
It is a foundation of a systemized water tank which consists of a steel support with adjustable rotary height, a top and a bottom plate and both ends are fixed as a linkage for each foundation.
Structure Analysis Flowchart
| Description | Concrete Foundation | Adjustable Foundation |
|---|---|---|
| Shape |
|
|
| Pad material | Plain concrete+Steel liner | STS pipe +SMC |
| Build | Moulding-concrete pouring-Curing-Mortar plaster-Curing | Bolt assembling |
| Leveling | Poor horizontality (Non-precise standing of skid base) |
Precise horizontality (Precise standing of skid base) |
| Durability(Strength) | Good compression strength, but instabilities for curing, plastering & liner | Standardized Uniform Quality with more than 8times safety ratio (Ready made product) |
| Corrosion resistance | Rust on steel liner / Concrete corrosion | No rust (Anti corrosion material) |
| Pad weight reduction / 300 places | 165,600kg(100%) | 3,600kg(2%) |
| Build time / 500 tons | More than 30days | Less than 3days |
Structural design and stability verification
SERIM HI-FOUNDATION is a proven product that has undergone a field test for a scientific design and compressive strength test by FEM and a 7 meter high water tank.
FEM analysis result
| HI-FOUNDATION generation stress | |
|---|---|
| Stiffener(Steel) |
197kgf/cm2 < 1600kgf/com2 (Allowance rate 8.1 times) |
| Stiffener Plate(SMC) |
17kgf/cm2 < 212kgf/cm2 (Design Margin 12.5 times) |
Field Test
| HI-FOUNDATION generation stress | Base frame strain | Spec |
|---|---|---|
| 7mh | 1.25mm | 10.0mm Below |
| Maximum deformation amount 1.25mm (8 times deformation safety) | ||
SERIM HI-FOUNDATION Prefabricatd Structure
