One-pipe heating system with forced circulation: diagram, photos, reviews

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2018-03-18 10:20:39

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As far As comfortable living in a private home depends largely on the quality of work of the heating system. Today, there are several ways to build such structures. The most simple and quite effective is the so-called “Leningrad” - one-pipe system. On how to mount it with their hands, and will be discussed later in the article.

Advantages and disadvantages

The advantages of this design, as one-pipe heating system with forced circulation should be attributed primarily to the ease of installation, cost and not too large value. The disadvantage of such structures is not particularly high efficiency when used in large square buildings as well as uneven heating of radiators on different floors.

What are the different types

In private houses you can usually see only two types of structures such as one-pipe heating system with forced circulation closed type:

  • Vertical. In this case, the coolant from the first boiler rises to the top floor. Here he goes through all the radiators. Then the water or the antifreeze goes down to the lower floor, after which the cycle repeats. Then in the riser, the coolant flows down even lower, etc.
  • Horizontal. Such single tube systems are installed in single-storey buildings. In this case, the coolant just goes through all the radiators of the house consistently, and is returned via the return pipe to the boiler.

one-pipe heating system with forced circulation

Design by “center”

Is one-pipe heating system with forced circulation of the following elements:

  • Heating boiler. It can work on gas, solid or liquid fuel, as well as from the mains. In country houses usually use the first form. The advantage of this equipment primarily is the efficiency. An electric boiler is cheaper, however, for his work will have to pay much more. Models that operate on liquid or solid fuel, typically installed in those areas where not connected to gas pipelines and electric networks.
  • Highways. It is also a very important element of this design, as one-pipe heating system with forced circulation. The diameter of the pipe in this case may be smaller than the natural movement of the coolant. Highway for such a heating system can be used steel, polypropylene, metal or copper.
  • Radiators. Batteries in private homes can be used in steel, cast iron, aluminum or bimetal. It is better to choose the second or last kind. Each radiator must be equipped with a crane Majewski.
  • Expansion tank. This element is designed to reduce pressure in the pipeline during the heat of the coolant. When you extend the water “unnecessary” part simply comes in this capacity.
  • Circulating pump. Sometimes the coolant in the heating system circulates in a natural way – due to the difference of temperatures in forward and return pipe. But these days, house owners prefer to use options with forced circulation. In this case, the movement of the coolant is the result of the operation of the pump. When using it you can install tubes are much smaller diameter, which often allows to save a certain amount. The disadvantages of the systems with forced circulation refers only to their dependence on electricity. However, when it is disconnected design can be transferred to the natural regime. Besides, you can always use a portable generator.
  • Valves. In addition, the design of such systems consists of different kinds of taps, cocks, valves and thermoclean.

one-pipe heating system with forced circulation diagram

Make a project

When designing your schema this design, as one-pipe heating system with forced circulation, the following factors:

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  • Boiler Capacity. The calculation of this index is usually entrusted to specialists. The fact that the choice of the most suitable equipment in this case you should consider a very large number of different factors. Approximately the same calculation is performed assuming that for heating per 10 m2 requires 1 kW of power unit.
  • Number of radiators. This figure can also depend on different factors. Specific power of one section battery indicated in her passport. 1 m2 of floor space requires 100 kW.
  • The Location and material of manufacture of the pipes.
  • Power circulation pump. The first indicator for water is determined by the formula:
    Qpu = Qn : 1,163 x Dt [m3/HR]
    Where Qn is the amount of heat consumed in kilowatts
    And Dt-the temperature difference in the reverse and supply pipelines.
  • The Volume of the surge tank. It can also be calculated independently. Do this using the formula:
    V = C e x : (1 — PO/Pmax) x k
    Where e-coefficient of expansion of water,
    – the volume of fluid in the system in litres
    R0 – initial air pressure in the tank
    PMax – the ultimate pressure in the heating system
    – the coefficient of filling of the container).
    The Last index and limit pressure are determined by special tables.

Boiler Installation

A Boiler in this design, as one-pipe heating system with forced circulation is installed below the location of the mains and radiators. Most often it is placed in the basement space. To install this unit on a level surface. Encountered in selling and suspended models. The first thing is attached and displayed on the street the chimney. Connection to the gas pipeline trust only the specialists. Independently it can't be made according to the standards.

one-pipe heating system with forced circulation pipe diameter

Tires

Continue the installation of such structures as one-pipe heating system with forced circulation, the scheme which has been presented above, battery installation. Radiators are usually hung under the Windows. Previously on the wall, the layout width and length of the radiator. Next, fasten the brackets. They hung up and battery. It must be located so that its lower edge did not reach the floor at least 10 cm Is the same distance must remain between the upper edge and the sill. The distance to the wall – 5 cm.

one-pipe heating system with forced circulation photo

Piping

In the next phase to the walls are attached to the backbone and risers. The inflow pipe should be located above the back. Mount to walls made brackets. Between the tubes are connected with fittings. It is not recommended to do in mainline too much of the knees. This will reduce the velocity of the coolant, consequently, the quality of the entire construction.

one-pipe heating system with forced circulation Leningradka

One-pipe heating system with forced circulation of “Leningrad”: connecting the radiators

Once the highway will be carried out, proceed with connecting the radiators. This is usually used by the diagonal and the bottom of the diagram. In the first case, the coolant supply takes place through one of the upper pipes of the radiator. Withdrawal – through the bottom on the opposite side. In the second – both pipes join at the bottom. Installation is done on the bypass. In the future, this will allow you to adjust the temperature of indoor air, selectively turning off radiators. In addition, in this connection there is the possibility of repair or replacement of batteries without interruption of the whole system.

one-pipe heating system with forced circulation of the closed type

Add other items

An Expansion tank is mounted on the supply pipe close to the boiler. The pump installed in the return pipe. The fact that the hot water straight highways can damage the elements of its design. Put the pump on bypass, equipped with three cranes. Before him mounted filter for coolant. This design element prevents the ingress into the device scale or sludge. The relief valve can be installed anywhere in the trunk. In this case, what matters is the ease of use. At the lowest point of the pipeline is installed the drain valve.

At the final stage, supply and return line are joined to the corresponding pipes of the boiler.

The result of all these actions is supposed to be a very effective one-pipe heating system with forced circulation. Photos of similar designs you can see below.

one-pipe heating system with forced circulation

Fill coolant

After the system is assembled, make it a trial run. Water pumped into the master...


Article in other languages:

BE: https://www.tostpost.com/be/hatn-tul-nasc/8571-odnotrubnyh-s-stema-acyaplennya-z-prymusovay-cyrkulyacyyay-shema-fota-.html

DE: https://www.tostpost.com/de/gem-tlichkeit/8570-ein-rohr-heizsystem-mit-zwangsumlauf-diagramm-foto-zeugnisse.html

ES: https://www.tostpost.com/es/la-comodidad-del-hogar/8575-odnotrubnaya-sistema-de-calefacci-n-con-circulaci-n-forzada-el-esquema.html

KK: https://www.tostpost.com/kk/domashniy-uyut/8573-odnotrubnaya-zhylytu-zh-yes-m-zhb-rl-aynalymy-bar-shema-foto-p-k-rler.html

PL: https://www.tostpost.com/pl/komfort-domu/8576-jednorurowy-system-ogrzewania-z-wymuszonym-obiegiem-mapa-zdj-cia-opini.html

PT: https://www.tostpost.com/pt/o-aconchego-do-lar/8572-odnotrubnaya-sistema-de-aquecimento-thermo-esquema-fotos-coment-rios.html

TR: https://www.tostpost.com/tr/domashniy-uyut/8577-tek-borulu-s-tma-sistemi-ile-zorlanm-sirk-lasyon-emas-foto-raf-yorum.html

UK: https://www.tostpost.com/uk/domashn-y-zatishok/8575-odnotrubna-sistema-opalennya-z-primusovoyu-cirkulyac-yu-shema-foto-v-d.html






Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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