Domestic boiler circulating pump installation drawing, household boiler circulating pump installation method

Domestic boiler is mainly to provide domestic hot water and heating to families, many users will be because of the hot water is not hot or heat is not high, circulation and increase the circulation pump, in order to solve the problem of the heat is not hot. Circulating pump is mainly aimed at the heating of the users, or large family home heating system cycle, floor heating, hot water circulation use, installed on the central heating, enhance the system pressure, improve the heating hot water flow rate, and improve the radiator heat dissipating capacity, improve the indoor temperature. However, the heat is a systems engineering, how to install it circulating pump? Circulating pump should be installed in what position? A,

(household boiler circulating pump structure 1) The pump casing and impeller. Structure, characteristics of the water pump casing for hemispherical wall thickness is smaller, the corresponding thermal stress is small. Belong to high revolution centrifugal impeller, close to the mixed flow of single-stage centrifugal pump. The impeller outlet is equipped with guide vane to the part of the kinetic energy is converted into pressure.

       ( 2) Bearings. Up and down in the motor end each put in a support bearing, on the lower end of the shaft has also installed a thrust bearing, and pump side is not load bearing. Support bearing and thrust bearing is lubricated by water.

       ( 3) The insulation body. Its role is to make the pump shell in the high temperature furnace water separated from the high-pressure cooling water cavity and motor, and preventing high temperature furnace heat water through the water pump shell and the shaft to the motor.

due to the insulation of the motor is a kind of polyethylene plastic, can't bear high temperature, high temperature insulation performance is significantly worse, so the flow around the motor internal high pressure cooling water temperature must be limited. So shall not contain particles of impurities, high pressure cooling water in high pressure water piping must be equipped with filters.

2, household boiler circulating pump installation method

usually, this kind of pump is installed on the return water pipe, get rid of a pipeline on the original system, pump string to the tube can be on the road, here is a household boiler circulating pump installation schematic

1, the natural circulation installation method

1) Installed in the radiator, the pipe has a certain slope, radiator and boiler, should have certain difference, as is often the case, the distance between 0, 5 meters.

       2） Radiator pipe diameter, average in DN - 25 and DN - - Two 40, distal should not be more than 15 meters; The diameter of its advantage is that can be completely by the method of natural circulation, heating effect; On the downside, upper and lower temperature difference is bigger, the height of the radiator installation cannot be too low, decorate the effect is not so good.

2, increasing heating circulation pump method

heating circulation pump method, on the basis of the installation of the natural circulation, it is the outlet of the water pipe equipped with heating circulation pump, to achieve a good effect, this method is often power outage areas are safe to use.

3, automatic pump cycle installation method

1) Along with the rise of floor heating products, the automatic circulation pump installation method, the deformation of the radiator is to convert into heat pipe, this kind of installation method, radiator can be completely on the ground, let the radiator and does not exist a certain elevation difference between boiler.

       2） Also can have a good effect of heat circulation, the convenient installation, heating effect is remarkable, and beautiful, its shortcomings is completely on circulating pump, power often cannot be used in your area.

3, household boiler circulating pump installation note

1, before installation, check the domestic boiler circulating water pump in and out of the gate have foreign bodies blocked.

2, loading systems, system clutter in the piping is rinsed clean first, lest the circulation pump operation, sundry winding impeller due to blocked.

3, installation, soft hard, do not vigorously, so as not to damage the pump body.

4, household boiler circulating pump inlet and outlet are equipped with by the term ( Union) To fit.

5, security wiring, cords, to adopt three line plug with ground wire, ground wire end and motor shell, to ensure safety.

6, low noise, and check whether turns, need a screwdriver to resist ears hear. Diving in the

7, pump rotating part, to exploit water lubrication, don't run for a long time without water, otherwise, the damage will be aligned.

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