0.05);從熱回收效果來看,測試期間室外溫度為-8~8℃時(shí),回收成本時(shí)間為80d左右。當(dāng)室外溫度低于19℃時(shí),留溫新風(fēng)換氣機(jī)可平衡熱回收效率及通風(fēng)需求的關(guān)系,能夠滿足畜禽舍通風(fēng)量及節(jié)能的需求。"/>

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雛雞舍留溫新風(fēng)換氣系統(tǒng)設(shè)計(jì)與試驗(yàn)
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國家蛋雞產(chǎn)業(yè)技術(shù)體系項(xiàng)目(CARS-40-K20)


Experiment and Design of Fresh Air Ventilation System for Chicken House
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    為了驗(yàn)證所提出的一種保溫、高效且運(yùn)行成本低的雛雞舍通風(fēng)方式,依照熱平衡原理,采用留溫新風(fēng)換氣系統(tǒng)對雛雞舍進(jìn)行通風(fēng)試驗(yàn)。對安裝留溫新風(fēng)換氣系統(tǒng)的雛雞舍進(jìn)行溫濕度、顯熱交換效率和雛雞生長性能監(jiān)測,并且對留溫新風(fēng)換氣機(jī)進(jìn)行回收成本分析。試驗(yàn)表明:試驗(yàn)組與對照組的每周溫濕度均可達(dá)到要求,在第4周時(shí),試驗(yàn)組的空氣溫度和相對濕度極顯著低于對照組(P<0.01);試驗(yàn)組的二氧化碳質(zhì)量濃度、氨氣質(zhì)量濃度、PM2.5質(zhì)量和PM10質(zhì)量濃度均極顯著低于對照組(P<0.01),試驗(yàn)組的空氣質(zhì)量和通風(fēng)效果均優(yōu)于對照組;留溫新風(fēng)換氣機(jī)的顯熱交換效率在夜間(19:00—次日07:00)平均達(dá)到80%;兩棟雞舍的雛雞生長性能無顯著性差異(P>0.05);從熱回收效果來看,測試期間室外溫度為-8~8℃時(shí),回收成本時(shí)間為80d左右。當(dāng)室外溫度低于19℃時(shí),留溫新風(fēng)換氣機(jī)可平衡熱回收效率及通風(fēng)需求的關(guān)系,能夠滿足畜禽舍通風(fēng)量及節(jié)能的需求。

    Abstract:

    In order to explore a kind of ventilation method with heat preservation, high efficiency and low operating cost about the chicken house, according to the principle of thermal balance, the fresh air ventilation system was adopted for the ventilation of chicken house, which used a high efficiency gasair plate heat exchanger. It was different from the traditional platefin sandwich type heat exchange core body, but the special design at the inlet and outlet increased the length of countercurrent portion and reduced the length of crossflow portion. The fresh air passage and exhaust passage were arranged at intervals in honeycomb body. It was a heat recovery ventilation system with low production cost, simple manufacturing process and high heat exchange efficiency. The temperature, relative humidity, sensible heat exchange efficiency, and growth performance of the chicken house were monitored with a fresh air ventilation system installed, and the cost of regenerative fresh air ventilator was analyzed. The test results showed that the temperature and relative humidity of test group and control group can meet the requirements of each week. And at the fourth week, the air temperature and relative humidity in the test group were 24.91℃ and 48.96%, respectively, which were significantly lower than those in the control group (P<0.01). At the fourth week, the carbon dioxide mass concentration, ammonia mass concentration, PM25 concentration and PM10 concentration in the test group were 2.36116mg/m3, 7.28mg/m3, 12.54mg/m3 and 107.58mg/m3, respectively, which were significantly lower than those in the control group (P<0.01). The air quality and ventilation effects of the test group were better than those in the control group. The average sensible heat exchange efficiency of the fresh air ventilation system can reach 80% during 19:00—07:00. The fresh air ventilation system can greatly recover the heat from the exhaust gas; there was no significant difference in length and body weight between the test group and the control group (P>0.05), which indicated that the heat recovery and fresh air ventilator can meet the growth needs of the chickens; from the heat recovery effect point of view, when the outdoor temperature during the test was -8~8℃, the recovery cost days was about 80d. When the outdoor temperature was lower than 19℃, the fresh air ventilation system can balance the heat recovery efficiency and ventilation requirements and meet the ventilation and energy saving needs of livestock houses. It was concluded that it had a good ventilation effect when the fresh air ventilation system was used in a chicken house. It was an effective way to solve the contradiction between heat insulation and ventilation of a chicken house.

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陳 輝,仝亞廣,張 巖,宋將飛,周榮艷,黃仁錄.雛雞舍留溫新風(fēng)換氣系統(tǒng)設(shè)計(jì)與試驗(yàn)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2018,49(11):320-327. CHEN Hui, TONG Yaguang, ZHANG Yan, SONG Jiangfei, ZHOU Rongyan, HUANG Renlu. Experiment and Design of Fresh Air Ventilation System for Chicken House[J]. Transactions of the Chinese Society for Agricultural Machinery,2018,49(11):320-327.

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  • 收稿日期:2018-05-13
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  • 在線發(fā)布日期: 2018-11-10
  • 出版日期: 2018-11-10