Build Daily

Engineering Systems

August 12, 2017 18:08

As the warm water ?

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As warm water in the country?

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best method of warming water pipe, is a depression in the ground below the frost line soil in the coldest period of winter.When you use the pipeline throughout the year, and do.Since at certain depths soil temperature remains constant during the entire cold season (for different areas of the different levels).The downside of this method is that in some places the soil can freeze up to two meters deep.In this case, it will be very difficult (not advisable) to bury the pipe to such a depth.Considering this aspect, consider some other methods, such as warm water tubing.

Create overpressure in the pipes

reason that the burst pipe is the ice that breaks it.If you make sure that the water does not freeze, we will avoid damage to the aqueduct.We know from school physics course, that the water that is under pressure, does not change its state of aggregation, that is, does not freeze.It is necessary to connect the receiver to the water, and the day of departure and include the device gradually create pressure in the pipeline.The value to be close to three atmospheres, will not allow formed ice.On his return in the spring, it is only necessary to pull the (play off) excessive pressure, thereby to bring the system to its normal state.

The important point is that the pipes have a margin of safety and can withstand a load.It is also necessary to ensure that the pressurized water system was full.

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heating water pipe via

cable If it is impossible to bury water pipes deep enough, there is a method of heating the pipe cable.Pipes need to encircle the cable that is connected to the power supply.The cable is heated, thereby heating the pipe, preventing the water from freezing.It is necessary to take into account the costs of the cable and the costs of purchasing electricity.Keep in mind that freezing the threat is relevant only a few months, and costs in this case are not as large as they can seem at first glance.

When insulation pipe materials frost, rainfall and others unfavorable factors, thereby, insulation must meet the following requirements:

  • fire properties when used indoors;
  • durability;
  • low thermal conductivity;
  • high coefficient of heat saving;
  • resistance to weather conditions;
  • low cost;
  • convenience of application and the possibility of multiple installation.

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Types of heaters water pipe

most common are insulating Basalt cylinders (consisting of microcrystalline basalt fibers of high density, it has a high wear resistance of insulation in the form of a coating of aluminum foil) and Styrofoam (foam) shell.

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Requirements for fire water

Compulsory fire water supply is provided in such objects:

  • buildings for administrative purposes height of 6 or more floors;
  • residential buildings of 12 floors and more;
  • public buildings, regardless of the number of floors and dimensions;
  • cubic capacity of the building that is 5000 cubic meters or more;
  • entertainment centers;

fire line are divided into:

  • high pressure;
  • low pressure;

fire line low-pressure pumps are used or fire tanker to produce the desired pressure, the pressure should ensure the education of the jet 10 meters from the fire barrel.

Firefighters used high pressure water pipelines stationary pumps which create high pressure and are included only when a fire is detected, but no later than five minutes from the receipt of the signal.

fire water must constantly be kept in good working order and checked at least once every six months.

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