The use of centrifugal pumps in summer Dai Lingling is the peak season for locomotive tyre punctures. According to relevant statistics, accidents caused by punctures accounted for about 1/4 of the traffic accidents. The summer tire burst rate accounted for 3/4 in summer. Summer tire tires "can not be overlooked.
In order to prolong the service life of tires and ensure safe production, it is necessary to pay attention to the tires in the hot summer season during driving and operating: Tire temperament “Large (1) Always check the tire air pressure to observe changes in its shape. When overheating is detected, rest in the shade for a while. After cooling down, you must not use deflation or pouring cold water to cool, otherwise it will cause tire surface, sidewall rubber layer uneven shrinkage, resulting in peeling, cracks, not only shorten the service life, but also buried hidden dangers. Inflatable should have barometer instructions.
(2) Drive at medium speed and do not speed. Start, switch, and brake should be as steady as possible to avoid emergency braking. Check the pneumatic pressure and tire humidity in the midway to remove stones, nails, etc. embedded in the tread.
(3) Try to choose a relatively flat road.
In case of bumpy roads, slow down in advance to avoid the vehicle jumping ", and the tires are impacted.
(4) Park as much as possible in the shade, avoid sun exposure and lead to tire aging. 1 Check the leakage of the pump. If there is insufficient or no water in the pump, first consider whether the water inlet pipe is due to trachoma, cracks or joints. Sealed air enters. Some of the flaws are very difficult to find with a subtle visual search. Take the following simple and easy methods.
(1) Duck hair method: Using a duck down, close to the suspected air intake when the pump is running, observe the floating condition of duck hair. Similarly, lighted cigarettes can be used as such. Find the ribs by the direction of the drift of the duck villi and smoke.
(2 cotton yarn or thin paper strip method: In the normal operation of the unit, use fine cotton yarn or thin paper strips near the water pipe liner to observe whether the fine cotton yarn or paper strip is attracted.
Oil Method: For difficult-to-identify air intake points, apply a little oil to the suspected air intake. If the engine oil is quickly sucked away, it is the air intake.
2 Clever Waterproof Pumps Air leakage pumps should be installed as close to the water surface as possible to ensure that air is not drawn when the water level drops (however, the water pump installation location must not exceed the maximum water level in the rainy season.
(2 leather water inlet pipe, the inlet horizontal pipe should be tilted or installed in the direction of the water, the inlet pipe at any point shall not be higher than the pump inlet, otherwise the air inside the pipe will not be exhausted.
(3 exhibition to prevent leakage of filler culverts should be filled with a moderate amount of filler lining damage, failure, should be promptly replaced; fill the cover of the water seal tube blockage and heat, can cause leakage of filler cover should be promptly cleaned water seal tube.
Before installing the flanged water inlet pipe, clean the flanged contact plane, add a 3~5mm thick rubber pad in the middle, and tighten the bolt gradually.
(5 ice pump bottom valve should have enough submerged depth, from the valve plane counted flood depth should be equal to 1.5 to 2 times the bottom valve outside diameter at least not less than if the submergence is too shallow, easy to form a vortex, thus inhaling air, producing steam Erosion and damage to the impeller and pump casing.
(6 The ice pump body is provided with a bleeder screw plug. In order to facilitate deflation, the same faucet may be replaced by a screw thread regulator instead of a bleeder screw plug, and the faucet may be opened when air is deflated.
The degree of vacuum at the suction port of the pump is limited. If the degree of vacuum is too large, the water in the pump is easily vaporized and the pump works adversely. Therefore, all kinds of pumps have their maximum allowable suction range, generally between 3 ~ 8.5m, when installing the pump should determine the installation location according to the allowable suction process.
Idea exhaust. Before starting the water pump, sufficient water should be added to eliminate the air in the water pump. Normally, the bleed plug on the pump cover should be opened periodically to eliminate the accumulated air.
3 Make the pump energy-efficient When installing the pump, try to shorten the length of the inlet and outlet pipes. If hoses are used, they should be installed as straight as possible to reduce distortion or deformation of the pipe diameter; the water inlet pipe should gradually rise along the direction of the water and cannot be arched so as to avoid the existence of air, affect the work efficiency, and submerge the outlet pipe below the surface of the outlet basin. Minimize the flow of Yang Cheng and flow resistance.
To select the appropriate pump model and specifications, the higher the pump Yang Cheng, the greater the power consumption. Generally, the actual water lifting height plus 1~2m of the water pump calibration Yang Cheng is suitable. When multi-stage pumps are used, excess impellers can be removed according to actual needs.
Replace the water pump ring and adjust the impeller radial clearance. After long-term use of the centrifugal pump, the clearance of the impeller ring increases the efficiency of the pump. Therefore, wear rings should be replaced in time during use.
The idea is to remove impurities around the pool to prevent blockage of the bottom valve to ensure smooth pumping.
The installation of the outlet pipe prevents the anti-aircraft gun ", the nozzle can not be too high, affecting the working efficiency at high levels, coupled with power loss.
To ensure that the water flow rate at the inlet of the pump is uniform and does not affect the efficiency of the pump, the tube can not be mounted directly near the pump inlet. A straight tube with a length of more than 3 times the diameter of the water tube must be installed before the tube is installed.
When the diameter of the water inlet pipe is larger than the diameter of the pump, an eccentric joint with a flat upper and lower slant is required at the inlet of the water pump. When the eccentric joint is installed, it must be flat and inclined downward. If the eccentric joint is reversed and the upper part is inclined, it is easy to have gas. ) The bottom valve shall be hung vertically in the water. The distance between the bottom valve and the bottom of the water or the surrounding wall shall not be less than the outer diameter of the bottom valve or bellmouth.
(9 seedlings pipeline leakage or leakage men tighten the nut, the leakage is not serious, you can apply water in the leak or leakage where the cement or bituminous oil mixed slurry. For temporary repair can also be painted Wet mud or soft soap.
Eggshell Frangible Paper Seals
Frangible Paper Seals are typically lower cost and are often used on higher volume applications including retail products, medications, confidential documents, etc.
Frangilble paper is very easlier peel off after tear off the label.
The material will destory in order to play a role of anti-fake.
Kindly see below photo for your reference, we can make accept OEM label.
Just need your logo in AI, CDR, EPS file, tks.
Eggshell Frangible Paper Seals,Frangible Paper Seals,Eggshell Paper Seals
Shenzhen Tuteng Anti-Counterfeiting Co., Ltd. , https://www.holographicsticer.com