本文選題：開式 + 水源　； 參考：《西安建筑科技大學(xué)》2014年碩士論文

【摘要】：在日常生活中，人們對制冷、供暖和生活熱水均有需求。目前，解決這三種需求主要采用熱泵型空調(diào)機(jī)組加鍋爐或熱水器的方式，，但是這種方案既不節(jié)能、也不環(huán)保。另外，用一套系統(tǒng)解決這三種需求的閉式水源多功能熱泵已經(jīng)在市場上得到了應(yīng)用，而開式水源/空氣源多功能熱泵還沒有成熟的方案。近年，本課題組提出了一種開式水源/空氣源多功能熱泵。本文針對其中的開式水源多功能熱泵進(jìn)行了實(shí)驗(yàn)研究。 本文介紹了開式水源多功能熱泵的工作原理及其可實(shí)現(xiàn)的四種功能模式；設(shè)計(jì)并搭建了一套開式水源多功能熱泵實(shí)驗(yàn)臺，該實(shí)驗(yàn)臺可對換熱器的進(jìn)出口水溫、進(jìn)出口水溫差同時(shí)進(jìn)行有效的控制。在試驗(yàn)過程中，進(jìn)出口水溫的控制精度為±0.2℃，進(jìn)出口水溫差的控制精度為±0.3℃。 利用搭建的實(shí)驗(yàn)臺對開式水源多功能熱泵的制熱工況進(jìn)行了實(shí)驗(yàn)研究，結(jié)果表明：當(dāng)熱水進(jìn)出口溫差為5℃，熱源側(cè)換熱器進(jìn)出口水溫為14℃/9℃、熱水進(jìn)出口溫度為40℃/45℃時(shí)，其COP比水源熱泵機(jī)組國家標(biāo)準(zhǔn)至少升高了7.7%；另外，當(dāng)熱源側(cè)換熱器進(jìn)出口水溫分別為10℃/5℃、12℃/7℃、14℃/9℃，熱水出水溫度為40℃～55℃，且熱水進(jìn)出口溫差為5℃時(shí)，其COP為2.20～4.22，其排氣溫度為80.3℃～109.6℃；在相同的熱源側(cè)換熱器進(jìn)出口水溫和熱水出口溫度下，當(dāng)熱水進(jìn)出口溫差為10℃時(shí)，其COP為2.60～4.51，其排氣溫度為78.3℃～101.3℃；通過對比分析可知，在相同工況下，當(dāng)熱水進(jìn)出口溫差由5℃增大為10℃時(shí)，其制熱COP分別升高了3.1%～18.5%，說明該熱泵在制熱工況下，大溫差小流量運(yùn)行性能更好。
[Abstract]:In daily life, people have a need for refrigeration, heating and domestic hot water. At present, heat pump air conditioning unit plus boiler or water heater is used to solve these three demands, but this scheme is neither energy saving nor environmental protection. In addition, a closed water source multifunctional heat pump with one set of systems has been applied in the market, but the open water source / air source multifunction heat pump has not been a mature scheme. In recent years, our team proposed an open water / air source multifunctional heat pump. In this paper, an experimental study of open water source heat pump is carried out. This paper introduces the working principle and four functional modes of open water source multifunctional heat pump, designs and builds a set of open water source multifunction heat pump experimental platform, which can be used to control the inlet and outlet water temperature of heat exchanger. The temperature difference of inlet and outlet water is controlled effectively at the same time. During the experiment, the control precision of inlet and outlet water temperature is 鹵0.2 鈩

本文編號：1950160