【 Weak current College 】 plumbing and ventilation engineering common failing and Government

A blockage of the drainage pipe, indoor

1. phenomenon: pipeline water drainage, health apparatus does not open.

2. governance: open with sweeping mouth or standpipe inspection hatch cover, excluding pipeline plug. Necessary be damaged pipe bend, used replacement parts to solve the serious problem of blocked pipeline.

Second, heating mains and swing gate no

1. phenomenon: dry pipe risers shed estuary from wall dimensions are not consistent, resulting in dry pipe connections with the riser pipe diagonal, risers from wall dimensions are not consistent, affecting the quality of the project.

2. governance: use elbows parts or modify pipe length between the estuary of the rejection, adjust the size of the head from the wall.

3. heating pipe risers are not allowed to dump mouth

1. phenomenon: heating risers are not permitted to cause mouth rejection, connect the radiator pipe slope inconsistencies, and even slope, which also causes the heatsink Wo wind, affect the normal heating.

2. governance: removing risers, modify the standpipe of the branch pipe length between the reserved port.

4. heating pipe plug

1. phenomenon: the heating is in use, pipe plug or partially blocked, gas or water flow of the rational distribution, so that heat is not working properly. In cold areas, may also make the heating system local cold damage.

2. governance: close the valve, removed the necessary segment, the focus check pipes bend and valve is open; the reason for blocking pipe plug excluded.

5. rectangular duct diagonal lines are not equal

1. phenomenon: wind pipe surface uneven surface, two neighboring non-vertical, parallel to each other two relative surface, two ports are not parallel to the plane.

2. governance: flanged tone tube moved edge width adjustment duct two port parallelism, and flange and verticality of the air duct.

6. Park-elbow, three links point inaccuracies

1. phenomenon: the angle of the elbow, three links, Center of the arc line offset is not in the same plane, diameter smaller.

2. governance: use flange tone tube to move edges width adjustment angle.

VII. Circular no LAN connection is not strict air duct

1. phenomenon: wind pipe interface loose, air leakage, offset two air operations center.

2. governance: you can connect the short pipe and duct space plus pad ring or replace short-tube, or universal sealant repair.