Vacuum pump system combining three stages of booster pumps and water ring pumps

A technology of water ring pump and booster pump, which is used in pumps, pump devices, liquid variable capacity machinery, etc., to achieve the effects of low steam consumption, cost reduction and flexibility enhancement
CN107541586APending Publication Date: 2018-01-05CHINA NAT HEAVY MACHINERY RES INSTCO
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA NAT HEAVY MACHINERY RES INSTCO
Publication Date
2018-01-05

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Abstract

The invention discloses a vacuum pump system combining three stages of booster pumps and water ring pumps. The vacuum pump system comprises a booster pump B1 communicating to a waste gas generating position, and an output end of the booster pump B1 is sequentially connected with a booster pump B2, a booster pump C3, a condenser C1 and water ring pump units; exhaust ports of the water ring pumps ofwater ring pump units are connected with waste gas outlets, and the water ring pump units are W4 water ring pump units; after working modes of the water ring pumps are selected and confirmed, a vacuum system is started; and all stages of vacuum pumps are started and stopped according to preset vacuum pressure values until a vacuum degree required by a process is met. The vacuum pump system has the characteristics of meeting requirements of the refining process and high efficiency and energy conservation.
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Description

technical field

[0001] The invention relates to the technical field of vacuum refining outside a molten steel furnace, in particular to a vacuum pump system combined with a three-stage booster pump and a water ring pump. Background technique

[0002] The core equipment of the molten steel vacuum refining system is vacuum obtaining equipment, and the traditional vacuum obtaining equipment used in the molten steel vacuum refining system is a steam jet vacuum pump. Steam jet pumps are characterized by large pumping capacity, fast pumping speed, and low maintenance costs, but their disadvantages are high energy consumption and strict requirements on steam quality, which affect production and operation costs. In recent years, there are also many application examples of vacuum obtaining equipment combining water ring pumps and steam pumps. In the unit composed of the steam jet pump and the water ring pump, the water ring pump is the backing pump for exhausting the atmosphere. If...

Claims

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