| 弹簧性能参数对微灌压力调节器调压效果的影响 |
| 李连忠; 牛文全
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| 2015
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发表期刊 | 灌溉排水学报
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卷号 | 34期号:10页码:15-18 |
摘要 | 利用流固耦合数值计算方法与样件测试验证方法,分析了弹簧劲度系数和初始应力对压力调节器调压特
性及流量的影响。结果表明,弹簧劲度系数和初始应力对压力调节器出口预置压力和流量的影响均呈线性关系,
且弹簧初始应力的影响明显大于弹簧劲度系数;压力调节器的临界工作压力与出口预置压力之差随着出口预置压
力的增大而增大,且该差值占临界工作压力和出口预置压力的比例随着出口预置压力的增大而线性增加。 |
其他摘要 | Pot experiments were performed to study the effects of different application of fungus chaff fertilizer
on maize growth,different forms of Cu content and enzyme activity in soil.Results showed that,
compared with the control,after applying different formulas of fungus chaff fertilizer,the Cu content in
soil reduced by 7.35%~11.56%,the content of exchangeable Cu in soil increased by 25.41%,the carbon
combined Cu content increased by 8.03%,the organic?combined Cu content increased to some extent,
the residue Cu content decreased a little,and the iron and manganese oxidation state Cu content had no significant
change.Compared with the control,after applying the fungus chaff fertilizer,the enzyme activity
in soil increased,invertase activity changed significantly,reaching the largest,which increased by
96.25%,the urease activity in soil increased,the maximum reached 54.50%,and the average growth of
hydrogen peroxide enzyme activity was 31.67%.Applying different formulas of fungus chaff fertilizer
could effectively improve the soil enzyme activity in Cu contaminated soil and also improve soil microorganisms’condition. |
关键词 | 微灌压力调节器
流固耦合
数值计算
压力
流量
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收录类别 | 中文核心期刊要目总览
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语种 | 中文
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文献类型 | 期刊论文
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条目标识符 | sbir.nwafu.edu.cn/handle/361005/9677
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专题 | 水保所知识产出(1956---)
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作者单位 | 西北农林科技大学水土保持研究所
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推荐引用方式 GB/T 7714 |
李连忠,牛文全. 弹簧性能参数对微灌压力调节器调压效果的影响[J]. 灌溉排水学报,2015,34(10):15-18.
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APA |
李连忠,&牛文全.(2015).弹簧性能参数对微灌压力调节器调压效果的影响.灌溉排水学报,34(10),15-18.
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MLA |
李连忠,et al."弹簧性能参数对微灌压力调节器调压效果的影响".灌溉排水学报 34.10(2015):15-18.
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文件名:
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弹簧性能参数对微灌压力调节器调压效果的影响_李连忠.pdf
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