Open the floodgate alone

　　1. Reference to standards and normsThe design, manufacture, materials and testing of closed waterproof doors shall follow the specifications or standards specified below. The materials involved in the manufacture and installation of this contract shall meet the requirements of the technical standards of the corresponding country (or industry). If there is a contradiction between some of the technical requirements in this section and the following standards, the higher standard shall prevail. If a non-specified version is used, it must be approved by the designer. If other relevant national standards and industry standards are used, they must be submitted to the purchaser for approval.

　　Quality management system requirements ISO9001-2008I-steel implements GB706-2008 standard and its reference standard.

　　The Angle steel is GB 9787-88 standard.

　　Channel steel GB707-65 standard.

　　Round steel and square steel implement GB/T702-2004 standard.

　　H-beams comply with DIN1025-2/ DIN EN ISO 12944.

　　The square pipe implements GB/T3094-2000 standard.

　　The steel plate implements GB709-88 standardSeamless steel pipe GB/T 8162-2008 for constructionWelded steel pipe GB/T3091-2008 for low pressure fluid transportCarbon structural steel GB/T 700-2008Low alloy high strength structural steel GB/T 1591-2008Code for construction quality acceptance of steel structure engineering GB50205-2001Technical specification for joint sealing and waterproofing of prefabricated building components DB11T-1447-2017Technical specification for waterproofing of tunnel engineering CECS370:2014Second, the main structure of waterproof and fireproof airtight door1. The door of the airtight door is made of flat steel plate, toe bar plate, ring beam, etc.

　　2. The door frame is a combination frame structure of channel steel and I-steel.

　　3, the tension device wedge slider wedge tight.

　　4. The door pivot is supported by rolling bearing.

　　Three, waterproof and fireproof closed-door working environment1, atmospheric pressure: 80kPa ~ 110kPa;2, ambient temperature: -30℃ ~ 40℃;3, the average relative humidity ≤ 95% (25℃);4, no enough to corrode the metal shell and electrical insulation of the gas;Technical requirements for waterproof and airtight doors1. The door structure and processing technology are designed and manufactured with high strength and resistance to deformation. The designed water pressure resistance capacity is 3 meters, which can effectively resist flood without leakage and deformation.

　　2, the door and door frame between the use of sealing structure and the overall molding process, with the same EPDM (EPDM) sealing material, the service life of up to 8 years.

　　3, the configuration of internal and external quick opening handle, easy to open, fast, safe and reliable sealing. The start or close time is not longer than 30 seconds.

　　4, the whole door without weld, beautiful appearance, high strength, good sealing performance. It is recommended to use linkage locking device, which can complete the action locking and opening at one time, and the operation is convenient and fast.

　　5, steel waterproof door, sealed rubber strip installed around, after installation, no light, no air leakage, good sealing performance.

　　6, all steel sealed doors are phosphating anti-rust treatment, the door panel, door frame and accessories are not allowed to have burrs and micro-cracks, the surface of the shot blasting process to achieve Sa2.5 level, the primer is sprayed twice zinc rich anti-rust paint, the top paint is sprayed twice, the thickness of the paint film meets the requirements.

　　7, the appearance is flat, smooth, paint color is bright and uniform, no wrinkles, flow marks, dew bottom.

　　8. When the waterproof door is opened and placed in a stationary position, a fixed bracket is made at the bottom of the door to prevent the door from moving.

　　9. The hinge of the flood control door is made of 304 stainless steel, and the interior is a special structure with eccentric circle and bearing10. Acceptance method: Close the waterproof door after the installation of the stainless steel airtight door, lock the tight handle with the fire nozzle impact, and the leakage per square is less than 2L/ hour.

　　Six, waterproof sealing door installation requirements:1. The flatness deviation of the support surface of the steel door frame should not exceed 1mm, and the cumulative length of the uneven part on each side should not be greater than 20% of the length of the side, and should be distributed in more than 2 places; The deviation of the verticality of the four sides of the door frame should not exceed 2‰ of the long side.

　　2, the door steel frame and the steel door frame should be affixed evenly, and the gap should not be as large as 2mm; The cumulative length of each unfitted part should not be more than 20% of the length of the edge, and should be distributed in more than 2 places.

　　3, hinge, lock installation position should be accurate; The coaxial deviation of the upper and lower hinge pages should not exceed 1‰ of the distance between the two hinge pages, and should not be as large as 2mm.

　　4, the door should be closed and flexible; The direction of the lock switch should be marked on the outside surface of the door.

　　5, sealing strip installation, should meet the following requirements: sealing strip joint should be 45° groove lap, each door sealing strip joint shall not exceed 4, preferably a molding structure; The sealing strip should be fixed firmly, compressed evenly, the allowable deviation of local compression should not exceed 20% of the designed compression, and the sealing strip should not be painted.

　　6, waterproof door frame and wall and ground gap using waterproof treatment.

　　7, all kinds of protective facilities should have the product factory certificate; The parts and components of the protective facilities must be complete and must not be corroded or damaged.