Many types of vacuum pumps generally need manual turning, which can be started only when it can rotate flexibly. First empty operation, i.e. close the inlet valve and open the outlet valve, check the cooling water and lubricating oil, and check whether the vacuum degree does not meet the requirements of the nameplate. Open the inlet valve slowly after everything is normal, so that the vacuum pump can be put into operation! Remember to fill water before starting the water ring vacuum pump to prevent air binding. Let’s learn about the startup mode of 2SK vacuum pump.
The starting relationship between fire control room and fire hydrant action button is related to the starting form of 2SK vacuum pump. Next, I will introduce its startup mode in detail:
The first way is to start the fire hydrant action button in the bus control mode. The required start signal can be sent to the fire control room console through the linkage interface module next to the fire hydrant, and then the switch contacts that enable the fire hydrant to start can be output from here.
The second starting mode is to directly output the switch value contact of the fire hydrant action button to the 2SK vacuum pump starting box. These two starting modes can be used in the actual design. The former mode saves wiring, but it is necessary to program the address code of the fire hydrant linkage module under the bus system to achieve the purpose of monitoring a large number of fire hydrants.
The latter one is simple and reliable, but it also needs to return the fire hydrant action signal to the fire control room. The designer can choose according to the actual scale of the project in the specific design. The former start-up method can be used for large-scale projects and complex building forms, and the latter start-up method can be used for small-scale projects.
The self starting of 2SK vacuum pump is to break the glass ball of the pipe network nozzle in each protection area under high temperature, which causes the flow of water in the pipe network, thus the linkage alarm valve pressure switch acts, so as to achieve the purpose of self starting 2SK vacuum pump. Through the water flow indicator linkage module or alarm valve pressure switch lead to the control room, the fire control room can accurately reflect its action signal, and the control room shall be able to directly control the start and stop of 2SK vacuum pump.
2SK vacuum pump is used to pump or compress air and other non corrosive, water-insoluble and solid particles free gases, so as to form vacuum and pressure in a closed container. A small amount of liquid is allowed to be mixed in the suction liquid.
2SK vacuum pump features:
1. 2SK vacuum pump has compact structure and convenient maintenance;
2. It has a wide range of applications. It can pump out all kinds of gases including water vapor, inflammable, explosive, small amount of dust and small amount of liquid;
3. The main water is used as the working medium with low maintenance cost;
4. It can work in a relatively bad environment.
Because the gas compression process of 2SK vacuum pump is isothermal in the working process, it is not easy to cause danger when compressing and pumping explosive gas, so its application is more extensive.
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