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基于碳晶电热膜的温室育苗保温加温系统研究

花匠小妙招
2024-11-24 08:17

摘要：

为解决冬春季温室育苗环境温度低的问题,设计基于碳晶电热膜的温室育苗保温加温系统,并于冬季最冷时段在河北省永清县的连栋玻璃温室内对系统的保温加温性能进行实际测试。以无加温育苗试验区作为对照,研究分析碳晶电热膜根区加温对基质温度和空气温度的影响,探讨苗床上保温覆盖的保温作用和加温的均匀性。结果表明,单层膜保温覆盖可使加温育苗区内空气平均温度值较温室内高1℃;碳晶电热膜加温可使基质温度平均值及最低值提高7.3℃和10.7℃;基质温度最低值偏离度为2.9%,平均值为6.1%。基于碳晶电热膜的温室育苗保温加温系统可有效提高育苗环境温度且加温均匀性高,为培育高质量种苗提供有力保障。

关键词: 连栋温室, 碳晶电热膜, 育苗, 保温加温, 基质温度, 空气温度

Abstract:

To solve the problem of low temperature in winter and spring in greenhouse seedling cultivation, a novel greenhouse seedling heat preservation and heating system was designed based on carbon crystal electrothermal film, and the heat preservation and heating performance of the system was tested in multi-span greenhouse of Yongqing County, Hebei Province in winter. Taking the seedling area without heating as the control, the effect of the heating of carbon crystal electrothermal film on the substrate temperature and air temperature of the seedling area was studied, and the heat preservation effect and heating uniformity were discussed. The results showed that single-layer film cover could make the average temperature in the heating area 1℃ higher than that inside greenhouse. Meanwhile, the average and minimum of substrate temperature in the heating area were 7.3℃ and 10.7℃ higher than those in the compared area without heating respectively. The minimum deviation degree of substrate temperature was 2.9%, and the average was 6.1%. In conclusion, the greenhouse seedling heat preservation and heating system based on carbon crystal electrothermal film can effectively improve the environmental temperature of seedling and the uniformity of heating is high, which provides a strong guarantee for the cultivation of high-quality seedling.

Key words: multi-span greenhouse, carbon crystal electrothermal film, seedling, heat preservation and heating, substrate temperature, air temperature

中图分类号:

S625.5