1.A combination pump dispenser is only suitable for small underground auto fuel dispenser, such as the use of high tank, exhaust pipe Maoyou phenomenon occurs, then make sure the exhaust pipe blocked.
2. Maintenance of electrical parts must be cut off the power, should not live overhaul. Do not damage the surface when you open the explosion-proof box. Intraluminal foreign body should clean dust explosion at a clean re-install the cable should be well sealed, metal pads, gaskets can not be lost, not the number of missing screws, tighten and reliable performance to ensure proof electrical components.
3. To avoid the use of oil gun oil filler pipe percussion gun is not normal operating oil container, such as by pressing the switch, to avoid damage to the oil gun, causing oil spills. Regularly check and tighten the stop screws on the injection tubing, injection tubing to prevent the roots loose, damaged.
4, the relief valve on the machine pumps and pump combination on the adjustment screw for adjusting the pressure of the pump, thereby regulating the discharge of small oil petrol dispenser. Has been adjusted at the factory. After long-term use, such as the discharge of oil dropped, the adjustment screw can tighten inward to increase the pump pressure, but not more than 0.3MPa, the exhaust oil to meet the requirements.
5, underground storage tanks be cleaned regularly to keep the oil clean.
Tank gauging system based on volume, the stock of measurement achieved by measuring the level and temperature. In the tank gauging system based on quality, the stock is measured using a liquid measuring hydrostatic liquid column made. In turn metering inventory control or lose, no matter what method, the reliability and accuracy of measuring instruments is very important.
2015年2月19日星期四
2015年2月11日星期三
Troubleshooting relief valve
In practical use, in order to maximize the effectiveness of pilot relief, protection and control vehicle identification systemaccurate and timely diagnosis, excluding pilot type relief valve failure is the key part.
Pressure limiting instability: pilot pressure relief valve limiting instability, manifested as low or high pressure hydraulic systems, hydraulic actuators action unable or tubing, pump, valve burst. Cause of this failure reasons: improper pressure adjustment; pilot valve spool spring bend or soften; oil too dirty or poor oil flow. Appropriate measures are excluded: readjust; calibration padded or replacement; replacement, cleaning. Pilot pressure relief valve limiting the gradual onset unstable failure, pilot-type relief valve failure.
Pilot type relief valve failure, will cause the injection molding machine inoperable. According to the phenomenon, analysis of the reasons are: the pilot valve spool spring break; Yin Nicon blockage; pilot valve port seal bad; the main valve stuck and so on. Corresponding exclusion measures are: replacement or broken at the flat washers to emergency use; cleaning dredge; grinding or the oil circuit breaker to emergency use; grinding, cleaning.
For all aspects of small tanker spill analysis. Enhance the use of small tankers. Small tanker used very widely, so it is necessary to understand the work of the various parts of a small tanker. Small tanker spill analysis works well for your relief valve failure. Are constantly deepening the internal structure of a small gas station management system. Small tanker analytical works.
Pressure limiting instability: pilot pressure relief valve limiting instability, manifested as low or high pressure hydraulic systems, hydraulic actuators action unable or tubing, pump, valve burst. Cause of this failure reasons: improper pressure adjustment; pilot valve spool spring bend or soften; oil too dirty or poor oil flow. Appropriate measures are excluded: readjust; calibration padded or replacement; replacement, cleaning. Pilot pressure relief valve limiting the gradual onset unstable failure, pilot-type relief valve failure.
Pilot type relief valve failure, will cause the injection molding machine inoperable. According to the phenomenon, analysis of the reasons are: the pilot valve spool spring break; Yin Nicon blockage; pilot valve port seal bad; the main valve stuck and so on. Corresponding exclusion measures are: replacement or broken at the flat washers to emergency use; cleaning dredge; grinding or the oil circuit breaker to emergency use; grinding, cleaning.
For all aspects of small tanker spill analysis. Enhance the use of small tankers. Small tanker used very widely, so it is necessary to understand the work of the various parts of a small tanker. Small tanker spill analysis works well for your relief valve failure. Are constantly deepening the internal structure of a small gas station management system. Small tanker analytical works.
2014年12月9日星期二
tank measurement system
The new station management system, to achieve a higher level in the field of measuring the tank, can help the oil refinery and the liquid storage tank to solve the efficiency, safety and accuracy of hitherto unknown, growing demand. The openness of the petrol station automation system better, the smart wireless technology, has good scalability. Not only can be easily installed on existing equipment, also support the future always add or replace equipment. The use of a full range of tank liquid level meter assembly, including the high accuracy radar level use automatic configuration, two wire bus technology, improved inventory management, the whole factory loss control, anti overflow tank protection and achieve efficient maintenance. The trade connection authentication, applicable to most tanks, including the fixed roof tank, floating roof tanks and tank. A wide range of applications, from light products (such as liquefied petroleum gas, liquefied natural gas and gasoline) to heavy products (such as crude oil and Li Qing) can be applied. Radar level condensate from the low design concept based on, in the global application, and successfully installed for measuring from gas to liquid products of various heavy crude oil and bitumen.
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