室内需求流通的空气，在室内中装置通风工程，确保通风畅通，同时在装置过程中，必需确保通风设备的防漏。由于一旦密封不好，整个工程所表现的效果也很普通。下面理解它的堵漏过程：
Indoor air needs to be circulated. Ventilation works should be installed in the room to ensure smooth ventilation. At the same time, leakage prevention of ventilation equipment must be ensured in the process of installation. Because once the seal is not good, the effect of the whole project is also ordinary. Understand its leak plugging process below:
1、清算：肯定灌浆孔位置及间距。清算洁净需求施工的区域，肃清外表析出物。
1. Liquidation: confirm the location and spacing of grouting holes. Clean up areas where clean construction is required and remove surface precipitates.
2、钻孔：运用钻孔工具沿孔洞周围钻泄压孔，钻孔须斜穿过主漏水孔。但不得将构造打穿。
2. Drilling: Use drilling tools to drill pressure relief holes around the holes, and the holes should be obliquely drilled through the main leakage holes. But the structure must not be broken through.
3、埋嘴：察看主漏水孔的压力，水流不急压力不大时可用快干堵漏剂埋注灌浆止水针头。当构造到达一定的强度没有渗漏时，其它泄水孔分别装置收缩止水针头，用内六角扳手拧紧。墙面慢渗也依次装置收缩止水针头。
3. Bury the mouth: Check the pressure of the main leak hole. When the water flow is not too fast and the pressure is not too high, the quick-drying plugging agent can be used to bury the grouting water stop needle. When the structure reaches a certain strength and there is no leakage, the other drain holes are respectively equipped with shrinkage water stop needles and tightened with an inner hexagonal wrench. The slow seepage of the wall is also sequentially arranged with shrinkage water stopping needles.
4、灌浆：运用高压灌浆机试压，向灌浆孔内灌注化学灌浆料。单孔逐一连续停止。当相邻孔开端出浆后，坚持压力即可中止本孔灌浆。待一切的孔都灌完后，回到先前的灌浆孔，再次灌浆。
4. Grouting: Using high-pressure grouting machine to test pressure, chemical grouting material is poured into the grouting hole. The single hole stops one by one. When the slurry is discharged from the opening of the adjacent hole, the local hole grouting can be stopped by insisting on the pressure. After all the holes have been filled, return to the previous grouting holes and grout again.
5、拆嘴：灌浆终了，确认不漏，即可去掉或敲掉外露的灌浆嘴。清算灌浆液。
5. Open mouth: When the grouting is finished, the exposed grouting mouth can be removed or knocked out. Liquidation grouting fluid.
6、补强：用密封剂对易渗漏部位停止封堵，用聚合物JS防水涂料。
6. Reinforcement: Sealant is used to stop the leaking parts and polymer JS waterproof coating is used.
通风工程中，特别要留意的是避免漏水，在施工过程中一定要认真看看，发现哪漏水及时修补。避免通风效果变差。
In ventilation engineering, special attention should be paid to avoid leakage. During the construction process, we must look carefully and find out which central leakage should be repaired in time. Avoid worsening ventilation.
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