The utility model discloses a blast furnace clean circulating water system, which comprises a high-pressure pump group and a medium pressure pump group respectively connected with the clean delivery suction well, a high-pressure pump group connected with the blast furnace high-pressure equipment, a medium pressure pump group connected with the blast furnace medium pressure equipment, a medium pressure pump group connected with the high-pressure pump group and a valve and a check valve arranged on the connecting pipeline; the valve is located between the check valve and the medium pressure pump group. In the utility model, the valve is kept in the normally open state, because the check valve only allows medium pressure to supplement high pressure, and the check valve is in the normally closed state due to the strong high-pressure clean ring water pressure during the normal operation of the high-pressure pump group. Once the high-pressure pump group is shut down due to failure, the check valve is no longer affected by the high-pressure effect of the high-pressure clean ring water, and the medium pressure clean ring water is automatically supplemented to the high-pressure clean ring water pipeline through the check valve, which can be avoided The high-pressure clean circulating water pipeline is cut off, and there is no need for the staff to operate the pipeline valve, which is conducive to ensuring the safe production of the blast furnace; moreover, the utility model has the advantages of low transformation cost and strong practicability.
【技术实现步骤摘要】
高炉净环水系统
本技术涉及高炉设备
,尤其是一种高炉净环水系统。
技术介绍
高炉用净环水分为中压(0.5~0.9MPa)和高压(1.2~1.6MPa)两种压力供水。其中,中压净环水主要用于对高炉炉壁等高炉中下部进行冷却,用水量较大,且中压净环水由于有单独供水源,用水安全有保障;而高压净环水主要用于对高炉封口及风口以上少量部位进行冷却,用水量较小,无单独供水源,用水安全性较底。而高压泵组在为高炉高压设备供水时,当高压泵组发生事故停机时,若工作人员未能及时打开中压泵组与高压泵组的连接管路,在高压泵备机开启之前,高压净环水出现断流,从而影响高炉生产。
技术实现思路
本技术所要解决的技术问题是:提供一种可解决高压泵组发生故障停机时高炉高压净环水断流问题的高炉净环水系统。为解决上述技术问题本技术所采用的技术方案是:高炉净环水系统,包括分别与净送吸水井连通的高压泵组和中压泵组,高压泵组与高炉高压设备连通,中压泵组与高炉中压设备连通,中压泵组与高压泵组连通且在其连通管路上设置有阀门和止回阀;所述阀门位于止回阀与中压泵组之间。进一步的是:所述高炉高压设备及高炉中压设备都与冷却塔连通,所述冷却塔与净送吸水井连通。进一步的是:所述高炉高压设备及高炉中压设备与冷却塔的连通管路上设有净喷吸水井和净喷泵组。进一步的是:所述中压泵组与安全水池连通。本技术的有益效果是:本技术在中压泵组与高压泵组的连通管路上设置阀门和止回阀,阀门保持常开状态,由于止回阀只允许中压补高压,在高压泵组正常运 ...
【技术保护点】
1.高炉净环水系统,包括分别与净送吸水井(1)连通的高压泵组(21)和中压泵组(31),高压泵组(21)与高炉高压设备(22)连通,中压泵组(31)与高炉中压设备(32)连通,其特征在于:中压泵组(31)与高压泵组(21)连通且在其连通管路上设置有阀门(41)和止回阀(42);所述阀门(41)位于止回阀(42)与中压泵组(31)之间。/n
【技术特征摘要】
1.高炉净环水系统,包括分别与净送吸水井(1)连通的高压泵组(21)和中压泵组(31),高压泵组(21)与高炉高压设备(22)连通,中压泵组(31)与高炉中压设备(32)连通,其特征在于:中压泵组(31)与高压泵组(21)连通且在其连通管路上设置有阀门(41)和止回阀(42);所述阀门(41)位于止回阀(42)与中压泵组(31)之间。
2.如权利要求1所述的高炉净环水系统,其特征在于...
【专利技术属性】
技术研发人员:刘利华,
申请(专利权)人:攀钢集团攀枝花钢钒有限公司,
类型:新型
国别省市:四川;51
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