燃氣熱水器設計

<一>  熱水器 9
第一章. 改裝的目的及意義 9
第一節(jié). 改裝的目的及意義 9
第二節(jié). 熱水器質量評測的幾個指標： 10
第三節(jié). 燃氣熱水器 11
第四節(jié). 電加熱熱水器： 12
第二章. 燃氣熱水器工作原理 13
第三章. 舊型直排式熱水器 13
第一節(jié). 對舊型直排式熱水器改裝的技術分析 13
第二節(jié). 傳統平衡式熱水器本體密封性結構存在的問題 14
第三節(jié). 理論分析 15
第四節(jié). 實驗分析 15
第四章．改裝設計（強排平衡式燃氣熱水器） 20
第一節(jié). 密封燃燒室新設計 20
第五章．閥體 22
第一節(jié). 傳統單向閥 22
第二節(jié). 單向復合閥 24
第六章. 容積式電熱水器 26
第一節(jié). 箱體系統 27
第二節(jié). 控制系統的分類和比較 30
第三節(jié). 電熱水器的工作原理 35
第七章．改裝后熱水器的安全性和五大性能 36
第一節(jié). 安全性 36
第二節(jié). 五大節(jié)能技術 37
第八章. 總結 37

論文摘要一
    燃氣熱水器最初起源于日本，它是指利用民用燃氣燃料供給熱水的設備。在國內,燃氣熱水器也以其即洗即用、方便快捷的優(yōu)點成為廣大居民解決洗浴和用熱水的好產品。 最初流行的是直排式燃氣熱水器，但使用該熱水器造成的中毒、缺氧窒息死亡事件此起彼伏。原因在于熱水器安裝于室內，室內燃燒將造成室內空氣嚴重污染和極度缺氧等現象，最終導致傷亡事件的發(fā)生。為了減小傷亡，保證安全，生產廠家在直排式燃氣熱水器的基礎上增加了煙道，推出了煙道式燃氣熱水器，并同時增設了一系列的安全保證措施。如：特設20分鐘定時關機裝置、防干燒保護裝置、防止不完全燃燒熄火保護裝置等。繼煙道式燃氣熱水器之后，生產廠家又推出了強排式燃氣熱水器。所謂強排式熱水器，就是在煙道式燃氣熱水器內增加了強制通風的風機和電機。.
   雖然以前的燃氣熱水器給廣大用戶帶來不少方便，但由于在技
術上還沒有完全成熟，其中也有很多不利的因素，因此還需要改進。通過國家有關政策的宏觀調控，在行業(yè)內強制性淘汰了一些不利因素或推行新政，有利于燃氣熱水器行業(yè)的快速良性發(fā)展和產業(yè)集中化，如1999年強制性將直排燃氣熱水器淘汰出局，使產業(yè)得到快速升級。目前，深圳、上海等一些大城市已開始禁止煙道式燃氣熱水器的生產與銷售，燃氣熱水器的發(fā)展又將面臨新的機遇與挑戰(zhàn)。目前使用的大部分燃氣熱水器采用的是由手動燃氣閥門和進水閥門來控制燃氣熱水器的出水溫度。當冷水入口溫度、水流量等因素發(fā)生變化時，出水溫度也將發(fā)生變化，洗浴時水溫忽冷忽熱，不舒適甚至造成對人體的傷害；而部分采用電腦常規(guī)控制方式的燃氣熱水器，當冷水入口溫度、水流量等因素發(fā)生變化時，由于對水溫采用以輸出偏差為基礎的反饋控制方式，控制系統對變化的跟蹤性能差，不易得到良好的控制性能。隨著科學技術的發(fā)展，特別是隨著消費者對價格的敏感度的降低，熱水器的技術要求也越來越高，安全、舒適成為首選。因此，加強產品研發(fā)投入、增強產品科技含量已成為行業(yè)共識。而人采用直觀判斷來進行控制閥的操作，往往能得到良好的水溫控制效果，因此，很自然地想到運用智能控制，把人的直觀推斷知識反映到控制過程上來，以實現性能優(yōu)良的控制。 人工智能的出現彌補了傳統燃氣熱水器技術上的不足.燃氣熱水器當年之所以能夠獨步江湖的“秘笈”，便是即開即洗，無需等待的方便、快捷等優(yōu)點。雖然目前被電熱水器奪去盟主地位，但技術的升級、安全性能的提高、產品的創(chuàng)新以及多年的消費慣性為燃氣熱水器的主流回歸奠定了基礎。
•關鍵詞：燃氣熱水器  直排式熱水器 強排式熱水器 

Abstract  One
The fuel gas Water Heater origins from Japan, is the use civil fuel gas fuel supplies hot water equipment. In domestic, the fuel gas Water Heater also by it’s namely washes namely with, the convenience quick merit becomes the general inhabitants to solve takes a bath, to use the hot water the good product.
     At first the popular is the straight platoon type fuel gas Water Heater. In this period of time, because uses the Water Heater to create is poisoned, the oxygen deficit suffocates the death event continuously. The reason is in the Water Heater room installs, the room burning has created in the room the air serious pollution and the extreme oxygen deficit finally causes the casualties’ event the occurrence. In order to reduce the casualties, guarantees the security, produced the factory to increase the smoke in the straight platoon type fuel gas Water Heater foundation to say, has promoted the smoke type fuel gas Water Heater, and simultaneously additionally built a series of safe guarantees measure， for example: Ad hoc 20 minute fixed time close installs, guards against burning the protective device, and prevents the incomplete combustion flameout protective device and so on. After continues the smoke type fuel gas Water Heater, produced the factory to promote the strong platoon type fuel gas Water Heater. The so-called strong platoon type Water Heater, was increased the forced draft air blower and the electrical machinery in the smoke type fuel gas Water Heater.
     Although the before fuel gas Water Heater brought many for the user communities convenient, but because has not been mature in the technology, also had very many disadvantageous factors, therefore also needed to improve. Through the national related policy macroeconomic regulation and control, compulsory elimination some disadvantage factors or carries out the new deal in the profession, is advantageous to the fuel gas Water Heater profession fast benign development and the industrial centralization, if in 1999 compulsory leaves office the straight platoon fuel gas Water Heater elimination, enable the industry to obtain the fast promotion. At present, Shenzhen 、Shanghai and so on some cities started to forbid the smoke type fuel gas Water Heater the production and the sale, the fuel gas Water Heater development face the new opportunity and the challenge. At present uses the majority of fuel gases Water Heater uses the manual fuel gas valve and the inlet valve gate controls the fuel gas Water Heater the water leakage temperature, when the cold water inlet temperature, factor and so on water current capacity changes, the water leakage temperature also changes, takes a bath when the water temperature is now hot and now cold, not comfortable even creates to the human body injury; But partially uses the computer convention control mode the fuel gas Water Heater, when the cold water inlet temperature, factor and so on water quantity of heat changes, because uses to the water temperature take outputs the deviation as the foundation reaction control way, the control system to the change track energy balance, is not easy to obtain the good control performance. Along with science and technology development, especially along with consumer to price sensitivity reducing, Water Heater specification more and more high, is safe, comfortably becomes the first choice. Therefore, strengthens the product research and development investment, the enhancement product technology content has become the  profession mutual recognition. But the person uses direct-viewing judges carries on the control valve the operation, often can obtain the good water temperature control effect, therefore, very natural thought the utilization intelligence control, person's direct-viewing inference knowledge reflected comes up to the controlled process, realizes the performance fine control.
     The artificial intelligence appearance has made up in the traditional fuel gas Water Heater technology insufficiency The fuel gas Water Heater same year therefore could alone the rivers and lakes "the secrets", then be namely opens namely washes, does not need conveniently, quickly to wait for and so on the merit. Although at present is taken away by the electric boiler the hegemony status, but the technical promotion, the security performance enhancement, the product innovation as well as many years expense inertia have laid the foundation for the fuel gas Water Heater mainstream return. At the same time, the transport the natural gas from the west to the east project is advancing step by step, for fuel gas Water Heater profession solution energy bottleneck question; Haired, is beautiful and so on the brand involvement fuel gas Water Heater market, indicated the fuel gas Water Heater has favored again by the profession. Certainly, the gas, the electricity, the light tripod vertical aspect also will continue very long period of time, the fuel gas hot water thinks highly of the palm rivers and lakes also to have section of very long road will going.
Key word: The fuel gas Water Heater
The straight platoon type Water Heater
The  strong platoon type Water Heater