Kitchen sink
The main purpose of the kitchen sink is to wash food, wash dishes, etc. According to the style, it can be divided into Apron Sink, workstation, Topmount Sink, Undermount Sink and so on. The sink is mainly made of 304 stainless steel, which is resistant to corrosion, oxidation, good toughness and durability.
Over 10 years global trade of stainless steel handmade kitchen sinks experience.
High quality 304 or 201 stainless steel material, apply advanced nano technology.
Customized different sizes and colours to satisfy different demands.
Kitchen Sink,Farmhouse Sink,Copper Sink,Stainless Steel Sink Jiangmen MEIAO Kitchen And Bathroom Co., Ltd. , https://www.meiaosink.com
/*728*90 created on 2018/5/16*/ var cpro_id = "u3440131"; Home>Bearing knowledge>Preparation work and precautions before starting the centrifugal pump Preparation before the centrifugal pump starts and its precautions
(1) Preparation before starting /*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';
a. Check the title, type, main performance and number of fills of the smooth oil before starting to match the needs of the skill file.
Whether the bearing smoothing system, sealing system and cooling system can be used without any; the oil and water paths of the bearing can be unblocked.
Rotate the rotor of the pump 1~2 turns; check if the rotor can conflict or catch the image.
In the vicinity of the coupling or belt protection equipment; whether there is any debris that hinders the transformation,
Whether the base and anchor bolts of the pump, the bearing housing and the motor can be loosened,
The valve or subordinate equipment of the pump operating system shall be in the direction of minimum load when the pump is working; the outlet regulating valve shall be closed.
Jog the pump; see if the impeller steering can be common with the depiction; if not common; the impeller must be completely stopped after the transition; adjust the motor wiring;
b. The water-filled water pump is used to start; the pump casing and the suction pipe must be filled with water first; this is due to the presence of air; the pump suction tooth vacuum cannot be constructed and adhered.
c. A pump that transports high-temperature liquids by a warm pump; for example, a boiler feed pump of a power plant; it must be warmed before starting. This is because the feed pump is running; high-temperature feed water flows through the pump; so that the pump temperature rises quickly from normal temperature to 100～200°C; this will cause the temperature difference between the pump and the parts; if the long heat transfer time is not met and the temperature rise is properly controlled; the pump will be swollen unevenly; the deformation of each part of the pump body will be formed. , wear, oscillation and bearing axles.
(2) Start the program Centrifugal pump pump chamber and the suction pipe are full of overflow water and no air; the outlet pump is closed. The feed pump warm pump is over.
About the forced smooth pump; start the oil pump to supply oil to each bearing.
Start the cooling water pump or open the cooling water valve.
Start the switch; after the start of the pump, the pump is not allowed to overtake 2~4min; after the speed reaches the rated value; gradually open the outlet valve of the centrifugal pump; add the flow; and reach the demand load.
(3) Precautions during operation The temperature of the bearing factory has a regular temperature. The temperature rise of the rolling bearing usually does not exceed 40 °C; the surface temperature does not exceed 70 °C; otherwise it is stated that the internal bearing of the rolling bearing is gross. ν, 觳. If it is continuous operation; Can lead to the incident. About the temperature rules of the sliding bearing; should refer to the pump's skill file; the disposal method is the same as the rolling bearing.
Recommend to friends comments close window Bearing related knowledge INA bearing removal; inspection and damage discriminating hub bearing unit seal layout national table comparison test analysis (2)
Bearing Professor describes the device for oscillating motor bearings
NSK imported bearing inner ring fixed way rolling bearing code indicates the method
This article links to http://
Please indicate the bearing network http://
Previous: Oil-free bearing---New product for mold occupation Next: How to judge the authenticity of SKF bearing from the surface
Preparation before the centrifugal pump starts and its precautions
Source: China Bearing Network Time: 2018-03-10