1. The opening and locking of the door lock should be smooth. The two parts locked on the door leaf and the door frame must be matched: the lock is improperly installed, which will cause the door leaf switch to be uncomfortable. The tongue plate should be removed, the tongue and groove should be repaired with a chisel, and the position of the tongue and bolt mouth should be adjusted before installation. The opening direction of the other door must also meet the requirements. 2. The door and window fan should be square, can't warp and deform. The door and window fan can just be stuffed into the door and window frame, and is consistent with the door and window frame: if the gap between the door and window fan and the frame is big, it is mainly because the shading is not allowed or the door and window frame is installed. The ground is not vertical, the door and window can be removed and re-planned; if the door and window frame are not vertical, the gasket should be straightened in the frame. 3, the appearance should be beautiful: the surface of the wooden doors and windows paint film to be smooth, bright, no flow fall, bubbles, wrinkles and other quality defects, no corrosion, dead, broken debris; package door and window cover use wood should be with the door and window fan of wood, Color coordination, color difference between veneer and wood can not be large, the tree species should be the same. 4. The position of the hinge should be accurate, and the installation should be firm: if the hinge is not upright, it will cause the door and window fan to not match the frame, and the door and window switch will not be smooth. Each hinge can be unscrewed by one screw, and then the fit of the door and window fan and the frame can be adjusted. After the adjustment is correct, all screws are tightened. If the hinge screws are short, or if they are screwed in, the screws are not screwed or the screws are skewed, it will cause the door sash to wander. The appropriate screws should be replaced. The screws must be straight. The screws should be pinned in 1/3 and the rest of the screws must be screwed in. 5. There must be grass-roots materials in the door and window cover: When the window cover is made of block board or density board, the base board should be fixed on the keel of the window frame base and then nailed; the door cover should be made of wood and then framed. Straight, then assembled and mounted on the wall, then cover the base board and veneer. Tap the side panel of the door and window cover by hand. If a sound of empty drums is heard, it means that there is no padding such as a blockboard, etc., which should be dismantled. >>> When the country meets IKEA Happy house slave sun 55 flat small apartment decoration Door purchase construction acceptance inspection window and door switch wooden door paint apartment decoration plate furniture Drilling BOP And Control System During oil drilling, it is installed on the wellhead casing head to control high-pressure oil, gas, and water blowout devices. When the oil and gas pressure in the well is high, the blowout preventer can close the wellhead (shut down). When the heavy mud is pressed into the drill pipe, there is a four-way under the ram, which can replace the mud invaded by gas, increase the pressure of the liquid column in the well, and suppress the ejection of high-pressure oil and gas. Drilling BOP And Control System,Double ram blowout preventer, single ram blowout preventer, annular blowout preventer, blowout preventer control system Rugao Yaou Import & Export Trade Co., Ltd , https://www.ntyaoumachinery.com
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Its types are divided into ordinary blowout preventer, universal blowout preventer and rotary blowout preventer. The universal blowout preventer can be activated in emergency situations to deal with any size of drilling tools and empty wells; the rotary blowout preventer can realize the blowout and drilling operation. In deep well drilling, in addition to two ordinary blowout preventers, universal blowout preventers and rotary blowout preventers are often added, so that three or four combinations are installed at the wellhead.
Annular Blow-out Preventer Annular Blow-out Preventer is usually equipped with a large gate with a ram-type blowout preventer. During operation, a sealed annular space is formed between the pipe string and the wellbore. When there is a pipe string in the well, it can also be separated The well is closed, but it will not work after several times of use, and long-term shut-in use is not allowed.
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