hbzhan Content: Vacuum pump is a rotary varactor vacuum pump must be used before the stage pump can be used in a wide range of pressure has a larger pumping speed on the gas is not extracted with dust and water vapor is widely used In the metallurgical, chemical, food, electronic coating and other industries. Plug vacuum pump intact standard what? (1) clean and tidy body parts complete and complete, the quality to meet the requirements. (2) vacuum gauge, ammeter and other instruments complete, sensitive, accurate, and regular inspection mark. (3) The foundation is solid and reliable. The anchor bolts and the bolts of each department are fastened and neat, and the exposed length of the screw thread conforms to the regulations. (4) The pipeline, valve and other installation is reasonable, clearly marked, in line with the requirements. (5) The installation of the various parts of the gap should meet the requirements. Piston vacuum pump operating performance What are the requirements? (1) The equipment is well lubricated and the oil quality meets the requirements. The equipment of "5 fixed" should be stable and free of noise. Its vibration and noise should not exceed the relevant regulations. When the equipment is in load operation, the parameters of temperature, pressure, Vacuum pump technical information in good condition what? (1) complete equipment files, data is accurate and reliable. (2) equipment maintenance and inspection records accurate. (3) Equipment Curriculum Card complete. (4) The accident record of the equipment is complete. (5) equipment operation record is complete. (6) operating procedures, maintenance and repair procedures complete. (7) Equipment fragile parts map complete. (8) equipment assembly diagram or structure. Piston vacuum pump equipment and the environment what are the requirements? (1) clean the pump body, the appearance of dust-free, grease. (2) There is no accumulation of water, waste liquid and other debris on the surface of the base base and around. (3) Valves and pipe fittings, etc. shall not be leaks. (4) Packing seal leakage does not exceed the provisions. How to make piston vacuum pump routine maintenance? (1) The environment around the equipment should be clean, dry and well-ventilated. Check the cooling water is smooth. Check the lubricating parts of the lubricant is in line with the provisions. Each class must check the various departments fastening bolts, no loose phenomenon, often check the level of the vacuum tank is normal and effective, and the necessary fastening at any time to check the vacuum gauge, ammeter reading is normal. At any time observe the operation of equipment without abnormal sound or vibration, if necessary, can report the status of relevant departments. Operators must strictly follow the "operating procedures" to operate, tour inspection found that the problem must be promptly addressed. Piston vacuum pump motor overload what is the reason? What are the treatment? The reasons are as follows: (1) eccentric ring gap is too small. (2) connecting rod burned. (3) poor exhaust. Processing methods are as follows: (1) adjust the eccentric ring gap. (2) repair or replacement of connecting rod tile. (3) check to clear the exhaust valve. Piston vacuum pump operation in the impact of what is the reason? What are the treatment? The reasons are as follows: (1) Piston rod nut loose. (2) connecting rod bushings and Phillips pins wear. (3) Connecting rod bearing bush gap is too large. (4) Eccentric ring wear. (5) There are debris in the cylinder. Processing methods are as follows: (l) Tighten the piston rod nut. (2) repair, replacement connecting rod bushings and crosshead. (3) re-research or replacement of connecting rod bearing. (4) Adjust the gasket. (5) clean up the debris in the cylinder. Under what circumstances, piston vacuum pump emergency stop? In case of any of the following circumstances should be immediately stopped (1) abnormal vibration and sound. (2) When the ammeter's current exceeds the rated value and continues not to drop. (3) When liquid material enters the pump body or there is danger of entering the pump body. (4) found cooling water cut off. Piston vacuum pump minor repair content is what? (l) Check and tighten the bolts of each department. (2) clean up the water jacket and valve chamber dirt. (3) Check, replace the piston rod packing, valve stem packing, valve and spring, adjust the valve position. (4) Adjust eccentric ring and eccentric, connecting rod and crank neck gap. (5) Check the piston, fastening nut, adjust the piston before and after the dead point clearance. Piston vacuum pump repair content is what? (1) Includes minor content. (2) inspection, repair replacement crosshead pin and connecting rod bushings. (3) Check, replace the valve rod, then neck bushing, neck pin, valve seat. (4) inspection, replacement piston ring, piston rod. (5) Measure and adjust the gap of each department. (6) overhaul the motor. Piston vacuum pump overhaul content is what? Including the repair content (2) Disintegration inspection, measuring the amount of cylinder wear, repair or replacement. (3) repair or replacement of eccentric, eccentric ring. (4) Repair or replace the crankshaft, connecting rod. (5) Check, repair or replace the crosshead, piston, piston rod. Piston vacuum pump cylinder repair quality standards have? Cylinder and cylindricity are measured. According to the degree of wear, the roundness and cylindricity of boring cylinder or replacement cylinder shall be determined. The inner surface of the cylinder shall be free from cracks, trachoma, scars, grooves and other defects. Cylinder diameter increase after cylinder boring Not more than 2% of the original size, the cylinder wall thinning shall not exceed the original wall thickness of 1/12 Cylinder water jacket does not allow cracks or leakage defects Piston vacuum pump crankshaft maintenance standards What? (1) Measure the crankshaft main journal and crank neck wear degree to determine repair or replacement, the main journal can be metal brush plating or spraying method to repair. (2) The wear value of the main journal and crankshaft journal shall comply with the requirements in Table 1 under 5. (3) The maximum reduction of the crankshaft journal shall not exceed 3 lines of the original diameter. (4) The crankshaft main journal and crank neck abrasion, dent area shall not be greater than 2% of the journal area, the depth of the groove up. 10mm, should be grinding repair. (5) The crankshaft should be replaced by a non-destructive inspection or a magnifying glass inspection of the crankshaft. (6) Crankshaft crankshaft parallel to the reference axis of the crankshaft 0.20-0.30mm (7) Crankshaft straightness of 0.05mm Piston vacuum pump bearing repair standards What? The bearing alloy should be in good contact with the shingle, firm and free of cracks, holes, delamination, etc. The contact area of ​​the bearing shell with the back of the bearing bush shall not be less than 40% -50%, and shim bearings and Spots should be uniformly contact point, the contact angle should be 60% -90%, contact points per square centimeter not less than 2-3 points Bearing bush and journal radial clearance should be one-thousandth of the journal diameter Piston vacuum piston, piston ring overhaul standards have? (l) Piston and piston ring surface should be smooth, no cracks, trachoma, scars and other defects. (2) Piston and cylinder installation clearance and the relative allowable wear values ​​see the provisions. (3) Piston ring should have sufficient elasticity, the total length of the contact surface with the cylinder wall not less than 60% of the circumference. (4) Piston ring in the ring groove, its counterpart should be staggered each other 1200. (5) Piston ring in the cylinder counterpart clearance, in the ring groove backlash and the maximum wear value.
Zigbee Light Bulbs has 16 million colors, through wifi connection, can change the red, blue, green three colors. The lights is high brightness and long life span, uniform, soft lighting is applied to the family restaurant bedroom, commercial space, entertainment.
Includ following devices:
1.1 RGB color light 8W
1.2 CT LED Bulb light
1.3 Smart light controller
1.4 light band
Smart Home Lights,Smart Home Color Led Lights ,Smart Color Led Bulb Light
Shenzhen Zhuohao Intelligent Electronic Development Co., Ltd. , http://www.szactop-smart.com