Code for installation of auxiliary equipment and pipes for heating hot water boilers
The installation specifications of auxiliary equipment and pipes for heating and heating hot water boilers are as follows:
1. The concrete strength of the auxiliary equipment foundation must meet the design requirements, and the coordinates, elevation, geometric size and bolt hole position of the foundation must meet the requirements of the table. Shanghai Energy-saving heating Hot Water Boiler
2. The hydraulic pressure test should be carried out before installation of the split cylinder (water divider, collector). The test pressure is 1.5 times of the working pressure, but not less than 0. 6MPa. There is no pressure drop and no leakage in 10min under test pressure.
3, open box, tank should be full of water test before installation; closed box, tank shall be 1.5 times the working pressure for water pressure test, but not less than 0. 4MPa. The full water test did not permeate for 24 hours after full water, and the water pressure test had no pressure drop and no leakage in 10min under test pressure.
4. The air tightness test should be carried out before the buried oil tank is buried, and the test pressure drop should not be less than 0. 03MPa. Under test pressure, 30min was observed without seepage, leakage and pressure drop. Shanghai hot water heating hot water boiler Shanghai
5. After the installation of the process pipe connecting heating hot water boiler and auxiliary equipment, the hydraulic pressure test of the system must be carried out, and the test pressure is 1.5 times of the maximum working pressure in the system. In the test pressure 10min, the pressure drop does not exceed 0.05 MPA, and then it is reduced to the working pressure for inspection without leakage.
6. The net distance of main operating channels of various equipment shall not be less than 1 when the design is not clear. The net distance of the auxiliary operating channel shall not be less than 0 for 5m. 8m.
7. flanges, welds and fittings connected to pipes, as well as instruments and valves on pipes, shall be installed in an easy position and shall not be close to walls, floors or pipe frames.
8. the temperature rise of the bearing shall comply with the following provisions for the trial operation of the fan:
The maximum temperature of sliding bearing shall not exceed 60 ��.
The highest temperature of rolling bearing shall not exceed 80 ��.
(3) the radial single amplitude of the bearing shall comply with the following provisions:
a. When the fan speed is less than 1000r/min, it should not exceed 0.l0mm.
b. When the rotating speed of fan is 1000-1450r/min, it should not exceed 0.08mm.
9, the installation of water system pipeline shall be in accordance with 1.2 indoor water supply system installation, 1.7 outdoor water supply network installation, 1. Requirements for installation of reclaimed water systems and swimming pool water systems in buildings.
10. the installation of the single bucket hoist shall comply with the following provisions:
(1) the spacing deviation of the guideway is not more than 2 mm.
(2) the verticality deviation of vertical guideway is less than 1%, and that of inclined guideway is less than 2%.
(3) the hanging point of the hopper is in the same vertical line as the vertical center of the hopper, and the deviation of coincidence degree is not more than 10mm.
The position of stroke switch should be accurate, the hopper should run smoothly and flip flexibly.
11, install heating hot water boiler delivery, induced draft fan, clean up internal sundries, check bearing and impeller steering, rotation should be flexible without touching and so on. Safety protective devices (except direct connection) should be installed in the rotating part of the fan. The connection between the induced draft fan and the metal air duct should be equipped with flexible short pipe, and the flexible short pipe installation should ensure that the joint is firm, tight, without obvious distortion and deformation, and shall not bear the weight of the air duct.
12, the hand pump should be installed vertically. When the installation height is not required, the pump center is 800 mm from the ground.
13. the installation height of the water injector is 1.0 m / 1.2 m from the ground if the design is not required.
14, the installation of the dust collector should be stable and firm, the position and entry, and the exit direction should be correct. When connecting the pipe with the induced draft fan, the soft joint should be used, and the weight of the pipe should not be pressed on the fan. Gas steam pot
15. The exhaust pipes of thermal deaerators and vacuum deaerators should lead outdoors and drain the atmosphere directly.
16, the visual mirror of the softened water equipment tank should be arranged in a direction that is easy to observe. The height of resin filling shall be carried out in accordance with the requirements of the equipment specification.
17. Dust, dirt, rust spots, welding slag and so on must be removed from the surface of pipes and equipment before painting. The thickness of the paint should be uniform, without peeling, foaming, flow and leakage coating and other defects.
