From the structure of the vacuum pump can be roughly divided into: reciprocating vacuum pumps, rotary vacuum pumps and jet vacuum pumps.
1, reciprocating vacuum pump Reciprocating vacuum pump is suitable for pumping non-solid particles, non-corrosive gases. This vacuum pump pumping speed larger vacuum degree higher. It is widely used in chemical plants. However, its complex structure, large amount of maintenance.
2, water ring vacuum pump. Water ring vacuum pump is a rotary vacuum pump.
3, jet vacuum pump. Jet vacuum pumps use a higher pressure working fluid to deliver another fluid.
Circulating water vacuum pumps are widely used in evaporation distillation, crystallization, filtration , vacuum, sublimation and other operations, low temperature cooling circulating water vacuum pump is a combination of vacuum pumps and cryogenic cooling pumps. Which can be evacuated, but also to provide low-temperature cooling circulating water, vacuum distillation and decompression enrichment is a good auxiliary equipment , especially adapted with a rotary evaporator , not only reduces the use of space, but also reduces the degree of vacuum, saving water, Widely equipped by modern laboratories.
A limiter for a Tower Crane is a safety device that is installed to prevent the crane from operating beyond its maximum load capacity or from moving beyond its designated working area. It typically consists of sensors, control systems, and alarms to ensure safe operation.
The load limiter is designed to monitor the load being lifted by the crane and automatically stop the crane's movement if the load exceeds the specified limit. It helps prevent overloading, which can lead to structural failure or accidents.
The radius limiter is used to restrict the crane's movement within a specific working area. It ensures that the crane does not extend beyond its designated radius, preventing it from colliding with nearby structures or obstacles.
Both types of limiters are essential safety features in tower cranes to protect workers, equipment, and the surrounding environment. They help ensure that the tower crane operates within its safe working limits and minimize the risk of accidents or damage.
Hoisting Limiter,Limit Switch for Tower Crane,Load Moment Limiter
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