1、常壓當(dāng)承壓使用
將常壓熱水鍋爐直接和自來(lái)水或采暖系統(tǒng)密閉循環(huán)。也就是將鍋爐本體上與大氣相通的排汽管當(dāng)做回水管使用，使鍋爐本體始終處于滿水承壓狀態(tài)。這種密閉循環(huán)方式有兩種危害：第一是當(dāng)爐水溫度過(guò)高時(shí)，產(chǎn)生的蒸汽無(wú)法排泄出去，因而壓力會(huì)不斷上升，爆炸和泄漏事故隨時(shí)都有可能發(fā)生。第二是即使?fàn)t水溫度不高，不會(huì)產(chǎn)生大量蒸汽，但由于有循環(huán)泵的作用，鍋爐本體承受熱水循環(huán)壓力是較高的。
The direct and water pressure hot water boiler or heating system closed loop. That is, the upper body and the atmosphere of the boiler exhaust pipe as a return pipe used to make the boiler body is always in a state full of water pressure. There are two ways this closed loop hazards: The first is when the furnace when the water temperature is too high, the steam produced can not be excreted,so the pressure will continue to rise, explosions and spills can happen at any time. The second is that even if the boiler water temperature is not high, does not produce a lot of steam, but the effect of a circulation pump, the boiler body is subjected to high pressure hot water circulation.
2、質(zhì)量差，發(fā)展緩慢
常壓熱水鍋爐制造廠發(fā)展迅速，出現(xiàn)了產(chǎn)品供大于求的情況，有的生產(chǎn)廠家技術(shù)力量薄弱，制造質(zhì)量差，且各廠家之間競(jìng)爭(zhēng)非常激烈，相互壓價(jià)，有的廠家甚至偷工減料。設(shè)計(jì)不規(guī)范。常壓熱水鍋爐與承壓鍋爐相比，有顯著的特點(diǎn)，特別是在熱力和水動(dòng)力方面，因此常壓熱水鍋爐的結(jié)構(gòu)設(shè)計(jì)應(yīng)符合其自身的特點(diǎn)。但目前常壓熱水鍋爐設(shè)計(jì)還不規(guī)范，設(shè)計(jì)時(shí)根本不進(jìn)行熱力計(jì)算和水動(dòng)力計(jì)算，常壓熱水鍋爐的設(shè)計(jì)基本上是在承壓鍋爐的基礎(chǔ)上改為開(kāi)口形式而已，其它結(jié)構(gòu)原樣復(fù)制，致使鍋爐水循環(huán)不良，浪費(fèi)能源。
Pressure hot water boiler factory has developed rapidly, product oversupply situation emerged, some manufacturers of technical weakness, poor manufacturing quality, and competition among manufacturers is fierce, lower prices, and even some manufacturers cut corners. Design is not standardized. Compared with pressure hot water boiler pressure boiler, a significant features,especially in the heat and water power, and therefore the structural design pressure hot water boiler should be consistent with its own characteristics. But the pressure hot water boiler design is still not standardized, do not be calculated thermodynamic calculation and hydrodynamic design, the pressure hot water boiler is basically designed to form the basis of the opening pressure of the boiler on it, other structures intact replication, resulting in poor circulation boilers, waste of energy.
3、安裝混亂。近年來(lái)從事常壓熱水鍋爐安裝的隊(duì)伍越來(lái)越多，安裝隊(duì)伍復(fù)雜，安裝質(zhì)量難于控制。鍋爐房位置選擇與施工也非常混亂，有的還未按《鍋爐房設(shè)計(jì)規(guī)范》進(jìn)行設(shè)計(jì)和施工。
Installation confusion. In recent years engaged in pressure hot water boiler installation team more and more complex installation team, difficult to control the quality of the installation. Select the location and construction of the boiler room is also very confusing, and some yet to press the "boiler room design specifications" for design and construction.
