如何计算发热管的功率 | 发热管|发热棒|发热圈|单头电加热管|厂家定制-昆山特耐佳五金电器有限公司

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如何计算发热管的功率

计算发热管的功率

Calculate the power hair heat pipe

一、加热管的设计计算,一般按以下三步进行:

One, the design calculation of heating tube, generally in accordance with the following three steps:

1、计算从初始温度在规定的时间内加热至设定温度的所需要的功率

1, calculated from the initial heating temperature within the prescribed period of time to set the required power of the temperature

2、计算维持介质温度不变的前提下,实际所需要的维持温度的功率

2, maintain medium under the condition of constant temperature calculation, actual need to maintain the power of temperature

3、根据以上两种计算结果,选择加热器的型号和数量。总功率取以上二种功率的最大值并考虑1.2系数。

3, according to the above two kinds of calculation results, select the types and quantity of the heater. Total power to take over a maximum of two kinds of power and consider coefficient of 1.2.

二、公式:

Second, the formula:

1、初始加热所需要的功率

1, the initial heating power that is needed

KW = ( C1M1△T + C2M2△T )÷ 864/P + P/2

KW = (C1M1 delta T + C2M2 delta T) present 864 / P + P / 2

式中:C1C2分别为容器和介质的比热(Kcal/Kg℃)

Type: C1C2 respectively containers and the specific heat of the medium (Kcal/Kg ℃)

M1M2分别为容器和介质的质量(Kg)

M1M2 respectively, the quality of the container and the medium (Kg)

△T为所需温度和初始温度之差(℃)

Delta T is required for the difference between the temperature and the initial temperature (℃)

H为初始温度加热到设定温度所需要的时间(h)

H as the initial temperature of heating to the time required to set temperature (H)

P最终温度下容器的热散量(Kw)

P of the heat which eventually temperature container (Kw)

2、维持介质温度抽需要的功率

2, maintain smoke need the power of the medium temperature

KW=C2M3△T/864+P

KW = C2M3 delta T / 864 + P

式中:M3每小时所增加的介质kg/h

Type: in M3 per hour to increase media kg/h

3.加热管环境性能曲线

3. The heating pipe environmental performance curve