Hot wind circulation oven operation and property confirm

Release time：2015-4-2 Number of hits：2765

一、Hot wind circulation oven running confirm

1、Purpose

Trial operation to confirm each parts are meet requirement

2、Content confirm

① Instrument and meter test

Confirmation method：Check whether the instrument and meter installed in the system is calibrated, verify the validity of the certificate is within the validity period.

Acceptable standard：The instrument and meter installed in the system have been checked, certificate of conformity within the validity period.

Confirm result：Performance validation evaluation and advice according to performance evaluation form.

② No-load heat distribution

Confirmation method：The different in the oven position, put the thermometer, The temperature difference of different position in the oven is determined, and the heat distribution of the oven is checked.

Specific operation：Choice 16 road temperature inspection instrument, One of them put in the wind, the other put in the air outlet, A point placed on the device temperature probe position, The rest of the probes are evenly distributed in the center of the corresponding position of the oven. When the temperature reaches the set temperature, Read the thermometer temperature, And record the data, The three data of the statistics on the temperature distribution of the oven to make evaluation.

Acceptable standard：

1) Oven temperature can be controlled between℃, The difference between the average and the set value of the temperature in the oven≤±℃。

2) The difference between the maximum temperature and the minimum temperature is less than ℃

Confirm result：The results are recorded in the appendix 13.

③ Running validation conclusion：Run validation evaluation and recommendation see fill in operation confirmation evaluation form.

二、Hot wind circulation oven property confirm

1、Purpose

Run through production, confirm the performance status of hot air circulation oven can meet the production process requirements.

2、Content confirm

① Drying capacity：kg；

② Confirmation method：

1) Full load heat distribution：Choice 16 road temperature inspection instrument, One of them put in the wind, the other put in the air outlet, A point placed on the device temperature probe position, The rest of the probes are evenly distributed in the center of the corresponding position of the oven. When the temperature reaches the set temperature, Read the thermometer temperature, And record the data, The three data of the statistics on the temperature distribution of the oven to make evaluation.

2) Drying effect inspection：After drying，sampling，Sampling method：sampling 5g in each layer, Mixing sampling 20g uniformly，each layer one sample, 12 samples, check water content.

③ Acceptable standard：Full load heat distribution：

1) Oven temperature can be controlled between℃, The difference between the average and the set value of the temperature in the oven≤±℃。

2) The difference between the maximum temperature and the minimum temperature is less than ℃.

Drying effect：

1) Test results meet the requirements of quality standards；

2) Test result RSD3％；

3、Confirm result：The results were recorded in the appendix of the hot air circulation oven performance confirmation sheet、Annex dry weight loss summary table.

4、Performance verification conclusion：Performance validation evaluation and advice according to performance evaluation form.