A lot of modern people are asking questions about how to put a water gun with a collector (manufacturing diagram below). At the same time, even many professionals over time begin to understand that the use of specialized hydraulic separators for connecting boilers is a rather effective tool that can significantly increase the efficiency of the installed heating system.
Problems of old technologies
Many people know that boilers without connected pumps are often directly connected to the collector, and it is instead of such an option that such a hydraulic arrow with a collector is most often used (manufacturing diagram below). From the boilers with pumps, these devices were simply removed, as a result of which they were installed on each separate heating circuit, but in reality this option can be used far from in any situations, since if the boiler still has a guarantee, then In this case, it will not be possible to remove pumps from it, but if it is a cast-iron boiler, then in the case of such dismantling of its components, even individual sections of the boiler may burst when the heating is switched on for the first time, having not withstood such a temperature difference.
What this technology gives
To get rid of all this, today a specialized hydraulic arrow with a collector is used (the manufacturing scheme is presented in the article). This device is designed to separate hydraulics, and more precisely, it shares the boiler directly with the rest of the heating system. Thus, for example, a hydraulic arrow with a collector (the manufacturing diagram is illustrated) can provide a single pump in the boiler, while several more such units of different capacities are installed in the system.
How does she work
The arrangement of such equipment is extremely simple. At the moment, we will not disassemble any high-tech devices, but only consider the main options for implementing such a technology.
In principle, it is enough to use a standard piece of pipe from which a hydroarrow (hydraulic separator) is made. Calculation of the water gun will allow you to understand what the main characteristics of such a device should be and which materials are best used for its manufacture.
What is her purpose
First of all, designers are trying to proceed from the fact that the arrow is intended specifically for the separation of hydraulics. In the vast majority of cases, manufacturers today are trying to produce boilers equipped with their own pumps, and such devices are quite powerful.
For example, there are boilers with a closed combustion chamber in which built-in pumps are installed. The power of such devices can be about 300 watts, but in reality it will not be enough to completely push through the heating system if it is necessary to provide an object for 1000 m 2 , namely, such equipment is designed for such an average heating area.
In this regard, it is necessary to install additional pumps, as well as use combined systems. It is in such a situation that instead of help, the pump that was originally used in the boiler will simply interfere, and it is in such cases that a hydraulic arrow can be used (purpose, calculation, manufacturing - more on this later in the article). At the same time, it is worth noting the fact that such high-power equipment, in the predominant majority of cases, is initially supplied with a factory-made hydraulic arrow in the kit, or at least there is a fairly accurate instruction on how to connect it.
If we take smaller boilers, then basically the exact same story is with them, but in this case we will have to make them ourselves.
Where to install it
The hydraulic arrow is installed on floor-standing boilers without a built-in pump to ensure effective protection of the boiler from a large temperature difference during the first start of the heating system. For example, with the help of this equipment standard steel boilers can be protected from condensation, while cast-iron devices can be protected from the possibility of failure of individual sections.
To exclude such unpleasant situations, a specialized hydraulic arrow is used. The drawing and diagram of the boiler room in this case play an important role, because depending on the features of the heated object, you must choose the appropriate equipment. The only thing worth noting is that you need to use an additional pump for various floor boilers.
Example
Initially, a person in his house wants to get an almost perfect heating system, spending reasonable money on it, and in this case it all starts with a boiler. For a small private house, you can choose a standard double-circuit boiler with a closed chamber, which will be mounted on the wall. At the same time, it must be correctly understood that in the predominant majority of cases, to ensure the normal distribution of the coolant in this system, it may be necessary to individually manufacture a heating collector for the water heater. In such a situation, a completely standard question arises: will their pumps be used and what needs to be done with the device in the boiler?
It is natural that many people in such situations prefer to simply dismantle the pump from the boiler so that it does not spoil the installed hydraulics of the system, but in fact the design of some devices is made in such a way that it is unlikely to be done. It is in such situations that the ideal solution is to connect the boiler of the hydro-arm and the collector.
How to install in such a situation
Initially, a distribution manifold diagram is drawn . As an example, consider the following situation:
- Two contours of warm floors.
- The system will use an indirect heating boiler circuit, two spare circuits for a heat pump or a separate electric boiler, as well as a hydraulic arrow circuit, that is, 5 circuits.
In this case, there is nothing complicated in how to draw a collector circuit - it is enough to have at least some understanding of how such a system works.
Production and calculation
It is worth noting the fact that you can independently adjust the power that your hydraulic needle will have. How to calculate the power, you must already proceed directly from the features of your premises and the devices used.
If you do not need the power of the device you purchased, then in this case it will be possible to reduce the threads in diameter, but at the same time make a longer arrow. In some situations, it is advisable to reduce the total power of the purchased equipment by up to two times, since, for example, 80 kW devices are not needed in every house, and in such cases it will be optimal to leave equipment with a capacity of 40 kW or more.
How to arrange it
Some who use the do-it-yourself hydrotrip manufacturing scheme prefer to install it in the immediate vicinity of the boiler, but many experts say that installing this device on the collector is also a good option, which ultimately allows for a complete and harmonious design that will it is easy to use, verify and maintain in the future.
In this case, the boiler can be mounted approximately three meters before the arrow is mounted, while the supply and return lines of the boiler can be mounted through the floor if there is a floor heating cake in the house . Otherwise, there are no fundamental differences in where your arrow will be mounted, and the main thing in this case is the installation of equipment with suitable power and always in an upright position. If you are making a hydraulic arrow for the heating system (diagram / calculation above), in which the boiler is installed without a safety valve, then in this case it is recommended to weld an inch thread to the top of the device for mounting a special safety group.
At the bottom, it is also recommended to weld a small thread to ensure normal drainage and filling arrows. An obligatory practical condition is the insertion into the system "boiler, hydraulic arrow and collector" of specialized couplings for mounting thermometers. In the process of further operation, this will make your life easier, as it will allow you to easily monitor the condition of the heating system.
How to make it
If you have a standard welding machine and experience with such equipment, then in this case there is nothing difficult in welding a full-fledged hydraulic gun on your own. However, one must correctly understand the fact that in the process of performing this work, a large number of subtleties must be taken into account.
Nowadays, it’s not difficult to find a drawing of a water gun, but you need to understand correctly that all such drawings are different, and there is no specific template. Each specialist sees the structure of the water gun differently, but there are certain rules that are followed by absolutely everyone.
The arrow itself is a certain metal container, to which pipes are welded, designed to connect to the boiler and provide supply and return. Also, consumer pipes are built into the system.
Optionally, you can use nozzles designed for an automatic air vent in the upper part of the installed arrow. In the lower part, a nozzle for the crane is installed to ensure the removal of various sludge and dirt. Among other things, in some place you can also put a pipe to feed water into the system.
First rule
The most important rule that you always need to follow is the so-called “rule of three diameters,” that is, the diameter of the water gun you set must be three times larger than that for the nozzles. If you want the hydraulic separator to fully perform its main functions, that is:
- separate sludge from the system;
- to remove gases;
- equalize the hydraulic difference;
- supply heated water to the boiler to ensure its long life.
Many people prefer to save and make waterbags on their own from polypropylene, but in fact this is an absolutely wrong decision, made mainly by people who have little understanding of the features of such equipment.
It is for this reason that it is worth using only full-fledged metal pipes, which allow you to fully realize the potential of such a technology and will really show themselves effectively throughout the life of such a system.