電蒸汽鍋爐原理是是把水加熱到一定的熱度產(chǎn)生高溫的水蒸氣,為供應(yīng)提供高效的生產(chǎn)力量。電蒸汽鍋爐的熱偏差是主要是由于鍋爐的吸熱不勻和流量不勻造成的,下面主要給大家介紹一下電蒸汽鍋爐流量不均勻的原因。
1、電蒸汽鍋爐蒸發(fā)受熱面并聯(lián)各管的流動(dòng)阻力不同和分配聯(lián)箱沿長(zhǎng)度的壓力變化,以及各管子之間的重位壓頭的不同均可引起流量不均勻。
Electric steam boiler heating surface of the evaporator tubes in parallel flow resistance and pressure difference along the length of the header assignment changes, and may differ between the various tubes bit heavy indenter cause uneven flow.
2、電蒸汽鍋爐http://yangchuncity.com/流動(dòng)阻力對(duì)熱偏差的影響。由于蒸汽管的結(jié)構(gòu)、質(zhì)量、長(zhǎng)度、管徑、粗糙度和彎曲度不同,其流動(dòng)阻力也不一樣,在壓差相同的條件下,阻力的大小,將引起流量的不均勻。
Effect on the thermal electric steam boilers deviation flow resistance. Since the structure of the steam pipe, quality, length, diameter, roughness and different curvature, which is not the same resistance to flow, under the same pressure conditions, the size of the resistance, will cause uneven flow.
3、電蒸汽鍋爐http://yangchuncity.com/重位壓頭對(duì)熱偏差的影響。在垂直上升管屏中,由于管屏高度相對(duì)較大,當(dāng)并聯(lián)各管受熱不均勻時(shí),密度就差得多,因而要考慮重位壓頭的影響。當(dāng)個(gè)別管子熱負(fù)荷偏高時(shí),該管流量降低。但由于管中工質(zhì)密度減小,重位壓頭降低,會(huì)促使流量增大。因此,重位壓頭有助于減小熱偏差。
Effect on the thermal electric steam boilers deviation bit heavy pressure head. In the vertical riser pipe screen, the screen height is relatively large because of the tube, when the uneven heating tubes in parallel, the density is much more backward, and thus to consider the impact of re-position the indenter. When the high heat load individual tubes, the tube flow is reduced. However, due to the working fluid density decreases tubes, heavy head lowered position, will lead to increased traffic. Therefore, re-position the head helps reduce thermal deviation.