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Nuclear Power EquipmentⅠ

Snubber Series For Nuclear power Station

Large- tonnage snubber

Products Introduction：

Large Tonnage snubber (3000KN ~ 5000KN) is a seismic supporter for steam generators and the main cooling pumps of nuclear power station. The snubbers stay on nuclear safety level, all hydraulic oil and non-metallic parts have strong radiation resistance capability, can be used for nuclear island. 

The snubber is available to be designed and manufactured according to design specifications (including installation size) of customer.

Technical Parameters

Model                    LSH450          LSH650             LSH850

Rated load             4500KN         6500KN             8500KN

stroke                     160mm          100mm             100mm

Dynamic stiffness   >600KN/mm  >1000KN/mm   >1000KN/mm

Low Speed Moving Resistance  <10KN              <15KN             <15KN

Latching speed       3.5mm/s            3mm/s              3mm/s

Unidirectional release rate <0.16mm/s       <0.16mm/s        <0.16mm/s

Allow the drift angle of pedestal  ±6°                    ±6°                   ±6°

Nuclear Power EquipmentⅠ

Snubber Series For Nuclear power Station

Mechanical snubber for Nuclear power station

Products Introduction：

       Mechanical snubber is a seismic support for nuclear power stations, thermal power stations, pipelines and equipment of chemical plants. During the normal conditions, mechanical snubber will move slowly when pipelines and equipment which connected with snubber shift due to the changed temperature .the resistance is low when the movement is small. In the event of an earthquake and pipe rupture accident, however, the snubber will immediately to limit the displacement of the pipes or equipments which were supported .the mechanical snubber plays a important role of seismic bracing during the whole processes. Mechanical snubber mainly constituted by ball screw nut, screw and flywheel inertia components and other components.

The snubber is available to be designed and manufactured according to customer’s design specifications (including installation size)

?rated load(KN)               1～400KN

limit load（KN）            1.5～600KN

stroke（mm）                100、160、250

stiffness（KN/mm）   ＞1～＞120

drag force                      ≤0.15～≤8?

Nuclear Power EquipmentⅠ

Snubber Series For Nuclear power Station

Hydraulic snubber

Products Introduction：

Hydraulic snubber is a seismic support for nuclear power stations, thermal power stations, pipelines and equipment of chemical plants. Compared to mechanical snubber, it is more suitable for large working stroke and load situation.

rated load（KN)                    3～600KN

limit load(KN)                       4.5～600KN

stroke(mm)                             80、120、180

stiffness（KN/mm）             ＞3～＞200

lockup velocity(mm/s)          2～6

?drift speed（mm/s）            ＞0.4

ball bushing jionts                ≥±6°?

Less than 1%（the rated load＞50KN）or 2%（the rated load≤50KN） of the rated load

Nuclear Power EquipmentⅠ

Snubber Series For Nuclear power Station

Double Rods Damper

ntroduction

The double rods damper is used in buildings, bridges and so on, protecting the destruction of the earthquake and the wind. It is made up of cylinder, piston, damping channel and rod. When the buildings moving by the earthquake, the damper begin to work to protecting them.

Performance parameter

Type                           SCG50      SCG80        SCG100           SCG200

Rated Load(KN)            500          800              1000               2000

Stroke(mm)                  ±90    ±100/±600   ±100/±600     ±100/±600

Nuclear Power EquipmentⅠ

Snubber Series For Nuclear power Station

Vibrosieve Damper

Introduction

The AR-HS1a damper is used in the vibrosieve of coal mine to buffering the vibration. Through the force produced by the internal structure to protect equipment.

Performance parameter

Rated Load(kN)      10

Limit Load(KN)       15

Stroke(mm)            ±40

Nuclear Power EquipmentⅠ

Snubber Series For Nuclear power Station

Metro Rail Damper

Introduction

Because of the metro’s noise influence, it must install the metro rail damper under the rail. Through the force produced by the damper to reduce the noise.

Performance parameter

Rated Load(KN)     2

Limit Load(KN)       4

Stroke(mm)           ±20