通風(fēng)管道加工的要遵守的細(xì)節(jié)制作

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1、 在一道密閉閥門工程口部的管道與配件，應(yīng)采用厚2-3mm的鋼板焊接制作,其焊縫應(yīng)飽滿、均勻、嚴(yán)密。

1. The piping and fittings of the first closed valve to the engineering port should be welded by thick 2-3mm steel plate. The welds should be full, even and tight.

2、染毒區(qū)的通風(fēng)管道應(yīng)采用焊接連接。通風(fēng)管道與密閉閥門應(yīng)采用帶密閉槽的法蘭連接，其接觸應(yīng)平整;法蘭墊圈應(yīng)采用整圈無接口橡膠密封圈。

2, the ventilation pipeline in the contaminated area should be welded. Ventilation pipes and closed valves shall be connected with flanges with closed grooves, and the contact shall be smooth; the flange gaskets shall be provided with a whole ring without interface rubber seals.

3、 主體工程內(nèi)通風(fēng)管與配件的鋼板厚度應(yīng)符合設(shè)計(jì)要求。當(dāng)設(shè)計(jì)無具體要求時(shí)，鋼板厚度應(yīng)大于0.75mm。

3. The thickness of the steel plate of the ventilation pipe and fittings in the main project should meet the design requirements. When there is no specific requirement for design, the thickness of the steel plate should be greater than 0.75mm.

4、工程測壓管在防護(hù)密閉門外的一端應(yīng)設(shè)有往下的彎頭，另一端宜設(shè)在通風(fēng)機(jī)房或控制室，并應(yīng)安裝球閥。通過防毒通道的測壓管，其接口應(yīng)采用焊接。

4. One end of the engineering piezometric tube should be provided with a downward elbow at the end of the closed door, and the other end should be installed in the ventilator room or control room, and the ball valve should be installed. The interface should be welded through the pressure measuring pipe of the anti-virus passageway.

5、通風(fēng)管的測定孔、洗消取樣管應(yīng)與管同時(shí)制作。測定孔和洗消取樣管應(yīng)封堵。

5. The measuring hole and cleaning sampling tube of the ventilating pipe should be made at the same time with the tube. The test hole and the washing tube should be blocked.

6、 通風(fēng)管內(nèi)氣流方向、閥門啟閉方向及開啟度，應(yīng)標(biāo)示清晰、準(zhǔn)確。

6. Airflow direction, opening and closing direction and opening degree of the ventilation pipe should be clearly marked and accurate.

7.材料表面油污應(yīng)全部干凈，以免鐵銹或氧化物落于材料表面產(chǎn)生局部腐蝕。

7. the oil on the surface of the material should be cleaned up so as to avoid rust or oxide falling on the surface of the material to cause localized corrosion.

8.必須有一個(gè)單獨(dú)的加工場地，為了不破壞鍍鋅鋼板外的保護(hù)膜，工作場地較好鋪設(shè)木板或者橡膠板，保持場地清潔。

8. it is necessary to have a separate processing site. In order not to destroy the protective film outside the galvanized steel sheet, the best work site is to lay a wood board or rubber plate to keep the site clean.