Recycling pneumatic extension rod hard seal butterfly valve excitation current - Shanghai Dongfeng Pump Valve Factory - 上海花千坊_上海龙凤花坛_夜上海最新论坛

Recover the excitation current of pneumatic extension rod hard sealing butterfly valve

Recover the excitation current of pneumatic extension rod hard sealing butterfly valve

What are the main functions of the spring shock absorber used inside the car
Cars are more and more common in our life. Although we can only see the exterior of cars, we can't see the interior. There are many parts in the interior of a car, such as spring shock absorber. Do you know what important roles spring shock absorber plays in the application of a car?
The spring shock absorber plays a very important role in the automobile, and this role makes the automobile not be too stable or easy to be damaged during driving. However, the elasticity of the spring shock absorber is a key issue. If the elasticity is not well adjusted, it may directly lead to the vibration or spring damage of the automobile components.
The greater the damping force of the spring damper, the faster the vibration will be eliminated. However, excessive damping force will lead to the failure of the elastic element to play its role fully, and even excessive damping force may lead to damage of some connecting parts and frame.
In order to harmonize the elastic element and the shock absorber, the following requests are made for the shock absorber:
1. During the suspension tightening stroke (the stroke when the axle and the frame move close to each other), the damping force of the shock absorber should be small, so that the elasticity of the elastic elements can be fully applied to mitigate the impact
2. In the suspension stretching stroke (the stroke that the axle is relatively far away from the frame), the assembling force of the shock absorber should be large, so as to reduce the vibration quickly;
3. When the relative speed between the axle (or wheel) and the frame is too high, the shock absorber should be able to automatically increase the cross-sectional area of the fluid flow channel, so that the damping force is always within a certain limit, so as to avoid being subjected to excessive impact loads.
At present, two-way acting cylinder shock absorbers are widely used in automobiles. The shock absorbers that can reduce vibration in both the tightening and stretching strokes are called two-way acting shock absorbers. Another kind of shock absorber only works during the stretching stroke. It is called one-way shock absorber.
The car is running on the road. We are not sure what kind of road it is. It is flat and stable. The car is running on a too smooth road. When turning, the spring shock absorber is constantly maintaining the car, making the car tilt to a certain extent, but not roll over. This is the spring shock absorber working.

 Pneumatic extension rod hard sealing butterfly valve

5. Safety precautions. (1) Safety precautions for maintenance: maintenance must be carried out by more than two persons; The specified protective equipment must be worn when entering the site for maintenance; If the valve is found abnormal and needs to be handled, it must be approved by the process personnel, and the operation can be started only after safety measures are taken. (2) Maintenance safety precautions: the certificate must be handed over during the maintenance of online valves; Before disassembling the online valve, the process medium must be completely discharged and no leakage must be confirmed before operation; Turn off the air source during maintenance; During maintenance, special tools must be used and parts must not be damaged; The removed parts and exposed valve body shall be covered with soft materials. (3) Safety precautions for commissioning: process personnel shall be notified to handle handover procedures before commissioning; The process and maintenance personnel shall cooperate closely when putting into operation.

 Pneumatic extension rod hard sealing butterfly valve

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