Currently, most industrialenterprises as well as private residential sectors are equipped with a sewage station. It is necessary for the forced removal of waste and industrial water. For example, if the bathroom is located below the main sewer pipe, then the option of sewage disposal by gravity disappears by itself. Let's take a closer look at what a sewage pumping station is and how this device works. In addition, we consider the key points of installation of equipment without the involvement of specialists.
General concepts and information
Currently sold three types of CNS independing on the design: simple, medium and complex. If you want to organize sewage disposal in a private house, then it hardly makes sense for you to acquire complex sewage pumping stations. Firstly, it is very, very expensive, and secondly, their performance significantly exceeds the amount of wastewater that will accumulate in you. In most cases, the simplest CND is sufficient, but if it is a large industrial enterprise, then it makes sense to give preference to more complex structures.
Household sewage pumping station: design
В зависимости от производителя, комплектация КНС may be disabled. If to speak clearly and briefly, then this pumping station is a sealed tank with a faecal pump. What is the cumulative capacity, of course. There are collected waste products. The material can be different: concrete, plastic, metal. The task of the pump is to raise the wastewater to a certain level, then the outflow is realized by gravity. Often the design involves several such pumps. One worker, and the second backup, which is needed to support the KNS in working condition in case of failure of the main one. In addition, there is a piping system with valves for controlling pumps. Pipes can lead to treatment systems or divert water to central sewers. Another integral part of the design - float switches, almost the same as in the toilet cisterns. They work simply - when the drains reach a certain point, the system turns on, water is pumped out.
The principle of the KNS
Let's take a closer look at how it works.device. Immediately it should be noted that there is nothing complicated. When the level of sewage rises to a certain point, the float switch sends a signal to the receiving tank, into which waste is pumped. It is worth noting that there are submersible pumps. When they are turned on, the sewage flows through the discharge pipe to the distribution chamber. By opening the valves, sewage flows either into the sewage treatment plant or into the central sewage system. To prevent the return flow of sewage into the distribution chamber, a check valve is installed in the latter. This is how CNS works. Sewage pumping stations are equipped with a ladder through which maintenance is carried out. The hatches of the upper part of the installation are hermetic, which does not allow odors to enter the service platform.
Types depending on power
Mini-stations are very simple.device that connects directly to the toilet. Pump of small capacity (not more than 400 W), fecal-submersible, with cutting tools. In fact, this is a good solution for the garden.
There are also average KNS.Sewage pumping stations of this type are equipped with a polymer tank and a submersible pump. Are in the greatest demand due to the high versatility. They are suitable for both giving, and for use at the industrial enterprise, unlike small and big KNS. If the device is intended for use in domestic conditions, then most often one pump with cutting elements is mounted. For industrial purposes, pumps do not have cutting elements, they are provided for 2 pieces.
As for large SPS, they are used in large industrial enterprises and in urban sewage systems. The pumps in this case are multichannel, without cutting tools.
Some good advice on choosing CNS
If you decide to choose a sewage pumping station, then be careful. There are several important details that you should always pay attention to. But first clarify the following points:
- the depth of the system;
- pump performance;
- type of pump (with cutting tools, single-channel or multichannel travel wheels);
- material of which the KNS case is made;
- case diameter
It is necessary to understand that todaymanufacturers make the body of polypropylene and reinforced fiberglass. There are also options for the body of polyethylene, concrete and steel. But the last two are more expensive. Also, the metal will corrode.
To make the station “filling” serve as long as possible,all its elements must be stainless. If seismic activity occurs, the hull must be extra strong. Additional warming is necessary for the northern regions; it may also be necessary to increase the depth of the occurrence. So sewer pumping stations for the house will serve faithfully for a long time.
What is good sewer pumping station Grundfos?
Let's look at specificationsGrandphos Integra. By itself, the installation is quite large, its height can be from 4.5 to 12 meters. Pneumatic cylinders provide tightness, and the tank is made of fiberglass, so it is very durable. Of course, we can safely say that the KNS hails from Denmark are considered among the best. This is due not only to the build quality, but also to the use of advanced technologies.
How to make a project?
Before proceeding directly to the installationequipment, it is necessary to calculate everything. And the first thing - water consumption. For this you need to take the minimum and maximum costs, as a result, get the average. Next you need to determine the power of the pump. To do this, it is necessary to calculate the height of the rise of wastewater, taking into account the loss of the heating pipe and air.
But that’s not the end of it.It is also necessary to draw up a general schedule of the station, and the figure obtained as a result of the functional calculation should be slightly more than the usual calculation. It is important to understand that there are various pumps. Some are designed to work in short periods of time under load, others vice versa. Do not forget about the occurrence of overloads that the submersible pump must withstand. The more often they occur, the more powerful the unit is needed. At the final stage, we determine the volume of the receiving tanks and can proceed directly to installation.
Installation of sewage pumping station
Before installation of the main equipment will be requiredput the concrete slab to which the base is attached. Its minimum thickness should be 30 cm. For the connection, you can use special anchors. Then you can proceed directly to the installation. To do this, the first thing you need to dig a pit, corresponding to the depth and diameter. If groundwater appears, you will need to make a foundation. Then you can put the station and fasten it to the stove, then fall asleep KNS soil.
In most cases, the installation of sewagepumping station runs without any problems. As noted above, for the northern regions, where the freezing of the soil is significant, additional warming will be required. This could be foam sheets or something like that. If we are talking about installing a mini-station, then there will be enough basic plumbing skills. The main thing is to provide tight connections and properly install the submersible pump. At this installation can be considered complete.
About the advantages of CND
Безусловно, далеко не всегда целесообразно install a sewage pumping station. If you have a normal central sewage system, then there is no particular point in this purchase. However, most private sectors need CND. And this is an obvious fact. Let's consider the main advantages possessed by the sewer station. Firstly, this kind of building saves living space very effectively, since the equipment is located on the street. Another big plus is the complete automation of the process. After you complete the construction of a sewage pumping station, you can almost forget about this structure. Of course, the installation needs periodic maintenance. SPS completely harmless to the environment, which is important, especially if the device is installed on an industrial site. Some models have cleaning filters, so wastewater can go straight to the ground.
Some interesting moments
If you buy a complete sewerpumping station, it is easier to entrust its installation to specialists. They will conduct the pipeline for you, and they will do the necessary tests. If you decide to do everything yourself, then be prepared to work well. It is unlikely that you can do it in a day or even a week, especially if you have to dig a trench manually. However, you can save a substantial amount and gain precious experience. By the way, with regard to prices for equipment, Sanicubic (France) with a capacity of 15 kW will cost you about $ 5,000. In this case, wastewater will be sent directly to the ground after treatment. But Homa Saniflux from Germany - the equipment is very expensive, about 18,000 dollars. Domestic manufacturers supply KNS at a slightly lower price.
Conclusion
Here we are with you typicalsewer pumping stations. As you can see, this is quite an expensive technique. However, in some cases this is the only available solution. Although we can say that many craftsmen themselves make something like KNS, however, it costs an order of magnitude cheaper. It always makes sense to acquire a sewage station in half with a neighbor. This option is extremely relevant to the garden or a large private sector. So you can save a significant part of the funds, and installation will be easier with third-party support.
