What is this - elevator unit of the heating system, not every consumer clearly understands. In domestic climatic conditions it is difficult to imagine a home without a heating source. The system under consideration allows us to optimize heating, unlike the stove counterpart, which could not heat the floor, due to the significant upward movement of warm air. Let's try to understand the intricacies of elevator equipment and its advantages.
General information
Since technological development does not stand still, experts have designed a water heating system. Here it is appropriate to ask the question: "What is the elevator unit of the 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 most often use the type of individual heating. In apartments, as a rule, the central system is operated. Next, consider what the elevator block is, what functions it performs.
What is the elevator assembly of a heating system?
The unit under consideration is a device that enters the heating unit, which performs the options of a 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 increasing its volume.
The following example will help you understand what this elevator unit of a heating system is.
- When supplied from the main water supply, about 5 cubic meters of liquid for the coolant are supplied.
- The work system already receives twice as much material.
- The increase in feed and volume is associated mainly with ordinary physical laws.
- First of all, keep in mind that the elevator in the thermal system is a connection to the central heating networks where the main thermal power plant is operated under pressure or in the boiler room.
Principle of operation
The operation of the elevator unit of the heating system is to supply water, which moves through the pipeline. In winter, the temperature of the liquid can reach 150 degrees Celsius. Despite the fact that the boiling degree is 100 degrees, one of the laws of physics plays an additional role in the operation of the system. At the considered temperature, water begins to boil only if it is in an open tank without additional pressure. Since the pipeline has an additional load, the liquid circulates more actively using pumping equipment. In this regard, boiling does not occur even if critical values are exceeded.
Features
The elevator node of the heating system, the photo of which is presented below, at a temperature of 150 degrees, can not work efficiently. There are a number of prerequisites for this:
- Cast iron does not like thermal differences. If the apartment uses radiators made of such material, in this case it is subject to deformation and failure. Damage can reach the point of complete destruction of the battery.
- Excessive temperatures also actively heat metal radiators, which can cause burns.
- Modern strapping devices made of plastic, which withstands 90 degrees. At 150 degrees - it will simply begin to melt.
- To cool the main focus, just use the elevator.
Destination
The purpose of the elevator unit in the heating system is aimed at lowering the temperature of the fluid used in the design. After passing through this node, a coolant of normal temperature enters the home. As it turned out, elevators are necessary in order to lower the temperature of 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. This solution makes it possible to obtain a sufficient amount of coolant without excessive water consumption.
Service
Next, we consider the features of servicing the elevator unit of the heating system. What it is is discussed above. During operation of the system, certain losses of liquid temperatures occur. It should be borne in mind that water is supplied through a nozzle with a reduced diameter, in contrast to the dimensions of the hot water pipeline. The increase in fluid velocity is ensured by pressure, which makes it possible to provide coolant to all risers. This design ensures uniform heating of the rooms, regardless of the presence or absence of the distribution block.
Elevator numbers for the heating system require proper maintenance. Some workers simply remove the nozzle and install metal shutters, which are responsible for manually adjusting the water flow rate. This is not the worst option, it is much more problematic to operate the system without them.
In a similar situation, homes in the immediate vicinity of the system will receive an excessive amount of heat, even in the most severe frost, residents will have to ventilate the apartment. And in the rooms located far from the junction, on the contrary, it will be cold. People will have to use additional heat sources. In fact, the fault is caused by improper system maintenance.
Exploitation
The principle of operation of the elevator unit of the heating system is more clear when studying the scheme. It makes it possible to understand that the design fulfills the option of two devices at once: a circulation pump and a mixer.
The configuration of the device is as simple as possible, but quite effective. The system has an affordable price, does not require the connection of electrical energy. For effective work, certain rules must be observed, namely:
- In terms of direct and reverse circulation, a pressure of about 0.9-2.0 bar should be maintained.
- The temperature regime of the outlet fluid is not adjustable.
- All parts of the device must be precisely adjusted, which requires appropriate calculations.
Despite some operational difficulties, the elevator unit of the heating system, the dimensions of which require proper adjustment, is quite popular in the utility industry and has a high efficiency indicator. The final results of the construction are absolutely not affected by the differences in thermal and hydraulic parameters. The block does not need constant monitoring, and its adjustment is carried out by the correct selection of the nozzle size.
Major malfunctions
Most often, in the node under consideration, breakdowns occur due to failure of the device itself. This may be due to a change in nozzle diameter or clogging. In addition, the fittings, sumps may be deformed or the settings of the regulatory elements may go astray.
Notice a malfunction is easy. The main sign of failure is the presence of temperature differences before connecting to and after the system. In the case of a significant difference in indicators, we can safely talk about violations in the operation of the unit. If the difference in parameters is not very significant, the problem is most likely a clogged nozzle. For repairs, it is better to use the services of specialists, since self-intervention can lead to a worsening of the situation.
Other issues
To eliminate clogging of the nozzle, it is removed mechanically and thoroughly cleaned with a rag and brush. If the diameter of this element changes due to the presence of rust, the operation of the heating system will be disrupted. At the same time, the rooms in the lower part of the multi-storey building will overheat, and the upper apartments will lack heat. The problem is solved in the only way - by replacing the nozzle.
Pressure gauges for the heating system are mounted in front of and behind the sump. If the devices show a significant pressure drop, this indicates a clogging of the dirt-cleaning element. The malfunction is eliminated by removing contaminants through the triggering cranes 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 home heating system with the simplest elevator system is not the most advanced design. Such a unit is difficult to adjust, often requires disassembling and replacing the injector type nozzle. The best option is considered to be a modernized elevator installation with the ability to automatically adjust elements that make it possible to mix the coolant in a specific range.