Posted on Tue, 22 May 2018 09:33:42 +0000
When the Liquid ring vacuum pump on the working process , under a certain temperature, when the low pressure of the liquid pressure is lower than the temperature of vaporizing pressure (that is,the saturated vapor pressure), liquid began to boil and bubble, and with the liquid into the high press...
Read MorePosted on Tue, 22 May 2018 09:32:20 +0000
Starting the vacuum pump Test starting, check the water ring vacuum pumps and other devices can work normally, the turning of the motor and pump is correct, if correct, can be used. To infuse water pump and open the inlet valve and rinse about 15 to 20 minutes, turn the rotor by hand at the same ...
Read MorePosted on Tue, 22 May 2018 09:31:01 +0000
The structure classification of oil seal vacuum pump Oil-sealed vacuum pump : which is use oil sealing the gap between the moving parts , this rotary displacement vacuum pump can reducing harmful space , This kind of vacuum pump is usually equiped with gas ballast device , so also called gas ball...
Read MorePosted on Tue, 22 May 2018 09:30:20 +0000
In the vacuum pump ,no matter rotay vane vacuum pump or rotary piston vacuum pump , vacuum pump oil not only as a medium for vacuum, also plays a role of lubrication, cooling and sealing of mechanical sore spot. 1. The very low vapour pressure This is the most important performance of the vacuum ...
Read MorePosted on Tue, 22 May 2018 09:27:20 +0000
1.The working pressure of the liquid ring vacuum pump should satisfy the required pressure of the vacuum equipment. For example, when the vacuum drying process requires the vacuum degree at 10mmHg, then the water ring vacuum pumps you choosed must be able to reach the limited vacuum at 2mmHg. , G...
Read MorePosted on Tue, 22 May 2018 09:26:40 +0000
1.Rotary slide valve oil seal mechanical pump (hereinafter referred to as plunger pump) are similar with rotary vane vacuum pump, is also a kind of transfiguration type gas transmission pump.And the scope and conditions of use and rotary vane pumps are basically the same. Plunger pump because of ...
Read MorePosted on Tue, 22 May 2018 09:26:05 +0000
1, Check the oil level position regularly, does not conform to the rules must be adjusted to conform to the requirements.When the ZJ/ZJP type roots vacuum pump operation, the oil level to the oil standard center shall prevail; 2, The oil change time according to the actual conditions of use and c...
Read MorePosted on Tue, 22 May 2018 09:25:17 +0000
The working principle of liquid ring vacuum pump and water ring compressor exactly the same , basic types and structure is roughly the same, the difference in any of the following five aspects: 1, Different impeller rotational speed range Impeller rotational speed is mainly composed of the suctio...
Read MorePosted on Tue, 22 May 2018 09:24:21 +0000
Rotary vane vacuum pump is a kind of rough vacuum pump, it can get the ultimate vacuum for 2000 ~ 4000 pa, equiped with air ejector can reach 270 ~ 270.Rotary vane vacuum pump can be used as a compressor, also called the rotary vane compressor, belongs to low pressure compressor, the pressure ran...
Read MorePosted on Tue, 22 May 2018 09:23:42 +0000
Start the vacuum pump: Long-term parking pump before starting , need turn a few weeks with the hand, to confirm the vacuum pump without card letter or other damage phenomenon.Start in the following order (see illustration) equipment. 1) closed inlet pipe gate valve road ; 2) start the motor ( fro...
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