Elevator unit of the heating system: what is it, the principle of operation

What is this - elevator system nodeheating, clearly not every consumer is aware of. In domestic climatic conditions it is difficult to imagine a dwelling without a source of heating. This system allows you to optimize the heating, in contrast to the furnace analog, which could not heat the floor, due to the substantial care of warm air up. Let's try to understand the intricacies of elevator equipment and its advantages.

General information

As technical development does not stand still,experts have constructed a water heating system. Here it is appropriate to ask the question: "What is an elevator unit of a heating system?". It is a design that allows you to heat the air in the room, regardless of the height of the ceilings and the total area of ​​the rooms.

In a private house, owners often usetype of individual heating. In the apartments, as a rule, the central system is operated. Next, we will consider what the elevator unit is, what functions it performs.

What is the elevator assembly of the heating system?

The considered unit is aa device entering the heating unit that performs the options of the jet or injection pump. The main task of this modification is to increase the pressure inside the working heating structure. Simply put, the elevator system pumps the coolant through the system, while simultaneously increasing its volume.

To understand what it is elevator elevator system node, the following example will help:

• When feeding from the main water supply is supplied about 5 cubic meters of liquid for the coolant.
• The work system already receives twice as much material.
• The increase in filing and volume is mainly due to conventional physical laws.
• First of all, take into account that the elevator in the heat system is the connection to the central heating networks where the main CHPP is operated under pressure or in the boiler room.

Principle of operation

Operation of the elevator unit of the heating systemis the supply of water, which moves through the pipeline. In winter, the temperature of the liquid can reach 150 degrees Celsius. Despite the fact that the degree of boiling is 100 degrees, an additional role in the operation of the system is played by one of the laws of physics. At the temperature under consideration, water begins to boil only if it is in an open tank without additional pressure. Since there is an additional load in the pipeline, the fluid circulates more actively with the help of pumping equipment. In this regard, boiling does not occur even if the critical values ​​are exceeded.

Features

The elevator assembly of the heating system, the photo of which is presented below, at a temperature of 150 degrees can not work effectively. There are a number of prerequisites for this:

• Cast iron does not like thermal surges.If the apartment uses radiators made of such material, in this case it is prone to deformation and failure. Breakage can reach the degree of complete destruction of the battery.
• Excessive temperature also actively heats the metal radiators, so you can get burns.
• Modern strapping devices made of plastic, which can withstand the maximum 90 degrees. At 150 degrees - it will just melt.
• To cool down the main hearth, just the elevator is used.

Purpose

Purpose of the elevator assembly in the heating systemis aimed at lowering the temperature of the liquid used in the design. In the home, after passing through this node, a coolant of normal temperature enters. As it turned out, the elevators are necessary in order to lower the temperature of the water for heating systems.

The process itself is quite simple. The device includes a working chamber where hot water and liquid coming from the return circuit are mixed. Such a solution makes it possible to obtain a sufficient amount of a coolant without excessive water flow.

Service

Next, consider the features of the serviceelevator unit of the heating system. What is this is discussed above. During the operation of the system, certain fluid temperature losses occur. In this case it is necessary to take into account that the water supply is carried out through a nozzle with a reduced diameter, in contrast to the dimensions of the hot water pipeline. Increasing the velocity of the fluid is provided by pressure, which makes it possible to provide the coolant with all the risers. This design ensures even heating of rooms, regardless of the presence or absence of the distribution block.

Numbers of elevator units of the heating systemrequire proper maintenance. Some workers simply remove the nozzle and install metal shutters that are responsible for manually adjusting the water feed rate. This is not the worst option, it is much more problematic to operate the system without them.

In this situation, dwellings in the immediateproximity to the system will receive an excessive amount of heat, even in the most severe frost tenants will have to ventilate the apartment. And in the premises located far from the junction, on the contrary, it will be cold. People will have to use additional sources of heating. In fact, the fault is caused by improper maintenance of the system.

Exploitation

Principle of operation of the elevator assembly of the systemheating is more understandable when studying the circuit. It makes it possible to understand that the design fulfills the option of two devices at the same time: a circulation pump and a mixer.

The configuration of the device is as simple as possible, butis quite effective. The system has an acceptable price, does not require the connection of electrical energy. For effective work, you must follow certain rules, namely:

• In the part of forward and reverse rotation, the pressure should be maintained on the order of 0.9-2.0 bar.
• The temperature regime of the outlet liquid can not be adjusted.
• All parts of the device must be precisely adjusted, which requires appropriate calculations.

Despite some operational difficulties,Elevator elevator system, the dimensions of which require correct adjustment, are quite popular in the communal sector and have a high efficiency index. The final results of the design work are absolutely not affected by the differences in thermal and hydraulic parameters. The unit does not need constant monitoring, and its adjustment is carried out by the correct selection of the size of the nozzle.

Basic Faults

Most often in the node in question is a breakdownoccur due to the failure of the device itself. This may be due to a change in the diameter of the nozzle or its clogging. In addition, the fittings, mudguards or the adjustment of the regulatory elements can be deformed.

Notice the fault is easy. The main sign of failure is the presence of temperature drops before connecting to the system and after it. In case of a significant difference in indicators, we can safely talk about violations in the work of the unit. If the difference in parameters is not very significant, the problem most likely lies in clogging the nozzle. For repairs, it is better to use the services of specialists, since independent intervention can lead to a worsening of the situation.

Other issues

To eliminate clogging of the nozzle, it is removedmechanically and thoroughly cleaned with a cloth and brush. If the diameter of this element changes due to rust, the operation of the heating system will be impaired. At the same time, the rooms in the lower part of a multi-storey building will overheat, and the upper apartments will suffer from a lack of heat. The problem is solved by the only way - replacing the nozzle.

Manometers of the heating system are mounted in front ofand a mud trap. If the instruments show a significant pressure drop, this indicates a clogging of the dirt-cleaning element. The fault is eliminated by removing contaminants through the shut-off valves located at the bottom of the assembly. If it is impossible to solve the problem in this way, the sump is disassembled and cleaned.

In conclusion

The heating system of the dwelling with the simplest elevatorsystem - not the most perfect design. Such a unit is difficult to adjust, often requires disassembly and replacement of the injector-type nozzle. The best option is the upgraded elevator installation with the ability to automatically adjust the elements, making it possible to mix the coolant in a specific range.