Node heat Squirrel

briefly about what the elevator and why is it needed

In fact, in order to better understand the elevator device and see it with my own eyes, enough to go down to the basement.First of all, in the eye rush various valves, pipe, valves, thermometers, gauges, etc.Amidst all this, you will notice a single node.

We understand that this is not a pleasant occupation, so prepared for our readers the material, in the form of photographs and videos, so you can clearly see the design of the elevator.

And so, what is it.First of all, you must understand the principle of operation of the elevator.With the district boiler room, the building of a supply of hot coolant for heating, chilled and discharged.For this purpose, the pipe for the supply and the return pipe.At first comes the hot coolant to the consumer, and the second tube is removed, cooled heat transfer fluid, returning it back to the district boiler room.

On one big house, or several small, establish special thermal camera.In them there is the distribution process between the coolant houses.They also mounted shut-off valve by means of which the cut-off pipe.In these thermal cameras perform drainage device serving to empty the pipeline (for example, during repair works).

Regional boilers operate in several modes:

• supply 150, and the tank line 70 gr.Ts.
• supply 130, with return pipe 70 gr.Ts.
• supply 95, when return pipe 70 gr.Ts.

mode selection is depending on the latitude of residence.For example, in Moscow have enough supply 130, but in Irkutsk need 150. In the mode name (150/70, 130/70, 95/70) indicates the maximum capacity of the pipeline, it all depends on the air temperature outside the window.Sometimes, the temperature was reduced to 70/54 to avoid overheating of the room.Adjustment is carried out on the boiler.

heating medium for heating comes to the consumer.His adjustment is carried out at the place with the help of special mechanisms, which consist of:

• servo;
• indoor and outdoor ambient air temperature sensor;
• actuator valve;

These systems equipped with individual devices.They keep records of heat energy, thereby achieving significant cost savings.Unlike elevators, these systems are less reliable.

When the coolant temperature is not more than 95 gr.Ts., heat must be qualitatively distributed throughout the system.For this purpose, balancing valves and manifolds.But when the temperature is above 95 gr.Ts.and it must be reduced by using the elevator.With elevator assembly to the feed conduit, is mixed with chilled water return line.

Functions and features elevator assembly

elevator, when properly installed, perform the mixing and circulation function.The advantages of this system include:

• simplicity of design;
• work efficiency;
• no connection to electricity.

Disadvantages:

• requires selection of the elevator and accurate calculation;
• outlet temperature can not be adjusted;
• between the filing and processing necessary to observe the differential pressure (0.8-2 bar)

design

elevator consists of:

• jet elevator;
• nozzle;
• vacuum chamber.

to him set the shut-off valves, thermometers and manometers.All this represents a Squirrel node.

As an alternative, instead of the elevator, you can use the equipment with auto temperature control.It is energy-saving, cost-effective, but more expensive.Such equipment may not work without electricity.

Therefore, at the moment the installation of the elevator pretty hot topic.He has a number of advantages and is used by public utilities for a long time.