Place of Origin: | Hebei |
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Location: | Shijiazhuang, Hebei, China (Mainland) |
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Business Type: | Manufacturer |
ECO CLEAN TANK II
(Introduction of new product)
Company Overview
Mission
To create values accepted by customer's mind with differentiated molding and manufacturing technology
Vision
To grow as a leading Total Solution Company holding molding and manufacturing technology achieving sales target of USD 300Million in 2020.
Company Overview
Company Name | DOHA Industry Co., Ltd. |
Established | 1999.3.2 |
Representative | Kim Hong-gyu |
Sales Revenue | USD 80million(2012) |
Head Office | 134 road, (#1183 Songhyon-ri) 81, Gomo-ro, Jinrae-myun, Gimhae-si, Gyeongsangnam-do, Korea |
Factory | Land area: 35,460m2, Floor space: 11,424m2 |
Main Products | Heavy machinery parts, automobiles, agricultural machinery, etc., Composite Products for aircrafts andblades, super precision press processed goods for LCD (LED), semi-conductors and building materials |
Market Trend of Water Tank
Market Trend
SMC water tank is used as a main material and only products sufficiently verified for its good hygiene and durability are consistently demanded in popularity.
Domestic Market Trend
SMC and STS are used as main materials and M/S of SMC water tank is also increasing in domestic market with its sufficiently verified durability and hygienic quality over competition.
Products in Domestic Market
Type | Existing STS Water Tank | Existing SMC Water Tank | ECO CLEAN TANK II |
Product | |||
Reinforcement | INTERNAL TYPE | INTERNAL TYPE | EXTERNAL TYPE |
Appearance | SQUARE SHAPE | SQUARE SHAPE | ROUND SHAPE IN EACH CORNER |
Main material | STS304 Panel | SMC Panel | SMC Panel |
Installing | Welding | Bolt Fastening | Bolt Fastening |
Hygiene | Vulnerable to corrosion as STS panels are assembled by welding | Strong against corrosion as reinforced plastic material is used | Strong against corrosion as reinforced plastic material is used |
Hygiene | Vulnerable to corrosion in STS panels and interior reinforced materials by Chlorine gas. | Vulnerable to corrosion in interior reinforced materials by chlorine gas. | Corrosion problem has been completely improved with exterior reinforcement structure (1~4mH). |
Water tightness | No problem in water leak | Water leak may be frequently occurred in the corners | No problem in water leak due to the rounded corner structure |
Product Information
Purpose of developing ECO-Clean Tank II
To develop and ideal water tank improved the problems found in the traditional products in a hygiene-related area that is the fundamental function in the water tank.
Major features of ECO-Clean Tank II
Comparison & effect of reinforcement structure between interior and exterior type
Type | Existing product(Internal reinforced) | ECO Clean II(External reinforced) |
Internal |
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External |
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Effect | Rust prevention, Solution to interference problem among reinforcement materials during cleaning work |
Comparison & effect of reinforcement structure between interior and exterior type
Type | Existing product(Internal reinforced) | ECO Clean II(External reinforced) |
Internal |
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External |
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Effect | Solved weakness found in the structure with square corners(rust and water leak) |
Technology of ECO Clean Tank II
Technology applied to product and certification
Certification | Certificate | Title of technology | Duration Validity | Obtained from | Remarks |
Patent | 10-1176145 | Prefabricated water tank with reinforced exterior | Registered:2012.08.16 | Commissioner of Korean Intellectual Property office | Registered |
Patent | 10-1050717 | Prefabricated water tank with substructure reinforced | Registered :2011.07.14 | Commissioner of Korean Intellectual Property office | Registered |
ISO9001 | QMS-3674 | Item: SMC Water tank and others | Registered :2012.01.30 | NSF-ISR | |
KC Certificate | KCW-2013-0113 | Water Tank ISO9001 | Registered :2013.04.18 | Korea Water and Wastewater Works Association |
Performance Evaluation
Test results conducted by qualified agency
Type | Test Item | Unit | KS Standard | Test Data | Results |
Hygiene | Migration Test(Turbidity) | Degree | 2 or less | Less than 0.5 | O.K |
Migration Test (Consumption of Potassium permanganate) | Mg/L | 1.0 or less | 0.3 | O.K | |
Migration Test (Smell and Taste) | - | No smell and taste to be detected | Not detected | O.K | |
Migration Test (Chromaticity) | Degree | 5 or less | 1 or less | O.K | |
Migration Test (Reduction of residual CHLORINE) | Mg/L | 0.2 or less | 0.0 | O.K | |
Migration Test (ph 20°C) | - | 5.8~8.6 | 7.2 | O.K | |
Migration Test (Phenol) | Mg/L | 0.005 or less | Not detected | O.K | |
Migration Test (As heavy metal/Pb) | Mg/L | 0.005 or less | Not detected | O.K | |
Migration Test (Evaporation residue) | Mg/L | 25 or less | 2 | O.K | |
Mechanical Strength | Tensile strength | Mpa | 60 or more | 114 | O.K |
Flexural strength | Mpa | 80 or more | 250 | O.K | |
Flexural coefficient ofelasticity | Mpa | 6000 or more | 14777 | O.K | |
Content of glass fiber | % | 25 or more | 27.6 | O.K | |
barco; hardness | - | 30 or more | 73 | O.K | |
Hygiene | Migration Test(Turbidity) | Degree | 2 or less | Less than 0.5 | O.K |
Migration Test (Consumption of Potassium permanganate) | Mg/L | 1.0 or less | 0.3 | O.K | |
Migration Test (Smell and Taste) | - | No smell and taste to be detected | Not detected | O.K | |
Migration Test (Chromaticity) | Degree | 5 or less | 1 or less | O.K | |
Migration Test (Reduction of residual CHLORINE) | Mg/L | 0.2 or less | 0.0 | O.K |
Theoreical Verification on Structural Safety
(FEM Stress Analysis - Reinforced Exterior Structure)
Type | MOMENT MAX | ØModulus | Allowable Stress | Stress of member | Results |
External reinforcement frame | 351.834 | 146.87 | 2395.55 | 2400 | O.K |
Base frame(Principal member) | 2634.4 | 61.02 | 43.17 | 2400 | O.K |
Ceiling rods | 551.88 | 1.58 | 349.29 | 2400 | O.K |
Note)1. MOMENT MAX: Actually Occurred MOMENT x 1.2 2. Modulus of Section: Actual modulus of section x 0.9 |
Maximum stress value in square shaped corner | Maximum stress value in round corner | Structural safety has been improved by 2.7 times |
115Kgf/cm2 | 42Kgf/cm2 |
Actual verification of structural safety(Field Test)
TEST Results: Maximum deformation when filled with water 18.98mm, No water leak found.→ Structural Safety is O.K
Conclusions
Water is the source of life and the most important resource used as the basis of all food ingredients.
We tried our best to develop the most ideal water tank, in which such valuable water is stored, from the viewpoint of a food container rather than simple machine equipment.
We hope we can contribute to the supply of fresh and clean water to meet the needs of society by widely distributing our eco-clean water tanks in these days when the importance of drinking water management is greatly emerged.
Thank you very much