www中文字幕-wwxx全免费视频-ww久久-ww毛片-ww欧美-ww亚洲ww亚在线观看

Your Position: Home > Support > FAQ

Structure and Function of SV Laibao Pump

2019/8/1??????view:

  1.1. Structure and function

  SOGEVAC SV 200 and SV300 are single-stage oil-sealed rotary vane pumps. The pump itself has anti-return oil valve, air ballast valve (optional parts), outlet filter, return oil circuit and oil cooling circuit. The pump is driven by a direct flange motor.

  Note: Gas ballast valves are standard parts of pumps sold in USA.

  The eccentric rotor (7/88) installed in the pump cylinder (7/83) has three blades, which divide the pump chamber into several compartments. The volume of each compartment changes periodically with the rotation of the rotor.

  When the rotor rotates, the volume of the intake part of the suction chamber expands and the gas is inhaled through the suction port. The gas passes through the dirt shield, and the open anti-return valve (7/54) enters the pump chamber. When the rotor rotates further, the blade separates the pump chamber from the suction port. The volume of the pump chamber is reduced and the gas is compressed. Gas is discharged from the pump chamber through an exhaust valve (6/20) when it is slightly higher than atmospheric pressure. Oil is injected into the pump chamber to seal, lubricate and cool the pump. The oil entrained by the compressed gas is preliminarily captured in the tank (6/27) due to its reversal. Then it is filtered thoroughly in the outlet filter element (6/29). As a result, the oil content in the exhaust gas decreases to below the visible level (the capture rate is more than 99%).

  The oil captured in the outlet filter is returned to the intake chamber through the return pipe (6/11). In order to prevent atmospheric gas from flowing into the inlet from the tank, the return tubing is controlled by a floating ball valve.

  The oil cycle is maintained by the pressure difference between the tank (pressure higher or equal to atmospheric pressure) and the intake port (pressure lower than atmospheric pressure) of the pump. Part of the oil is taken from the oil tank (6/27) and flows through the oil filter (6/25) to the bearing support point and pump chamber of the rotor. The other part of the oil injected into the pump will not pass through the oil filter. Therefore, if the oil filter is completely blocked by chance, the lubrication can be ensured by the second circuit with sufficient oil, thus ensuring the good mechanical operation of the pump.

  However, in this case, the pump can not reach the prescribed limit pressure. Generally speaking, this indicates that the oil is dirty or the oil filter is blocked.

  The fan rotating on the axis of the motor generates the air flow necessary for cooling to pass lubrication in the cooling coil.

  Pumps with air ballast devices (6/14) can be ordered according to demand (USA type pump air ballast valves are standard configuration).

  Open the air ballast valve and let a certain amount of controllable air called "gas town" enter the pump chamber. When the condensable gas or steam is exhausted, the gas column can prevent the condensable gas from condensing in the pump (the maximum allowable steam pressure is shown in the technical parameters). There are different kinds of gas towns: standard gas towns are better than atmospheric towns (10%) gas towns with solenoid valves when they are supplied with pumps without air ballast valves, they can also be installed with air ballast valves. Use anti-return valve (7/54) to prevent accidental breakage and oil return of vacuum chamber.

  1.1.1 Scope of Application

  According to the design, SOGEVAC pump can be used to extract stable gas, and its working range is from atmospheric pressure to the crude vacuum range of the pump limit vacuum.

  SOGEVAC pumps should not pump corrosive, corrosive, explosive or flammable gases.

  If there are corrosive, flammable, corrosive or explosive gases, please contact LEYBOLD.

  According to the design, these pumps can not work in flammable or explosive environment. If you have any questions, please contact LEYBOLD.

  Be careful that pumps are not suitable for pumping liquids or media containing dust. Corresponding protective measures must be introduced.

  If you have any questions, please contact LEYBOLD.

  Before pumping out gases with oxygen content higher than atmospheric (>20%) or other highly active gases, the pump must be modified to remove oil, and then special oils (such as PFPE) must be used. Take corresponding safety measures.

  Please contact LEYBOLD for important safety instructions.

  1.2 Standard Specification

  Pumps in standby state are supplied with motors. Along with the pump, GS77 or equivalent oil has been injected into the pump.

  The joint is sealed by a plastic protective cover. Remove the plastic cover before starting the pump.


主站蜘蛛池模板: 久久精品爱国产免费久久 | 欧美精彩狠狠色丁香婷婷 | 久久久综合结合狠狠狠97色 | 午夜影院视频 | 亚洲99久久久久综合 | 成年午夜视频 | 中文字幕欧美一区 | 狠狠干很很操 | 国产三级精品视频 | 在线免费观看国产 | 日本在线看片网站 | 亚洲欧美一级夜夜爽w | 中文字幕18页 | 天天摸夜夜添狠狠添2018 | 天天干天天操天天拍 | 成人免费视频在线观看 | 精品欧美日韩一区二区 | 狠狠操综合 | 亚洲成a人片在线观看播放 亚洲成a人片在线观看精品 | 台湾黄三级高清在线观看播放 | 日本免费一区二区久久人人澡 | 日日干夜 | 久久视频6免费观看视频精品 | 99精品日韩| 七次郎在线华人最新首页 | 精品国产区一区二区三区在线观看 | 日韩一级片在线播放 | 久久精品国产精品亚洲婷婷 | 成人国产精品视频频 | 男人和女人做爽爽视频在线观看 | 久久久国产一区二区三区 | 99视频在线免费看 | 91网站在线看 | 日本不卡视频网站 | 青青青青青国产费线在线观看 | 牛牛影视精品一区二区在线看 | 国产精品久久久久久一级毛片 | 天天槽天天槽天天槽 | 日韩高清欧美 | 在线中文 | aika中文字幕永久在线 |