Sewage pumping station is used for. Sewage pumping station KNS - principle of operation and types of installation

These sewage pumping stations are equipped with sewage pumps

Pumping stations for wastewater disposal systems are a whole complex of equipment and structures that ensure the removal of sewage from industrial enterprises, residential private houses and small settlements. A sewage pumping station is installed if it is impossible to ensure the discharge of wastewater by gravity. Its tasks include pumping liquid to treatment facilities.

Schematically, the pumping station looks like a receiving tank with an engine room in which pumps are installed. The presence of pumping stations on gravity sewers eliminates the need for deep laying of sewer pipes and sewer wells.

Types and types of sewage pumping stations

Based on their location, the CNS is divided into:

• The main ones, intended for pumping sewage water from the territory of an industrial enterprise or populated area.
• Regional, providing drainage of wastewater to treatment facilities or to the nearest collector in a certain part of an industrial or residential area.

According to its location, the sewerage pumping station can be:

• buried
• ground
• partially buried

Depending on the nature of equipment control, CNS are divided into three types:

• Remote - control and regulation of their work occurs from a remote control center.
• Automatic - control is carried out by instruments and devices, the operation of which is automated when the water level rises above a certain level.

In the event of a possible accident or breakdown of the main pump, provision is made for switching on backup equipment.

• With manual control - any operations are performed by maintenance personnel.

NSK DAB FEKAFOS

Based on the type of wastewater being pumped, sewage pumping stations are divided into four groups:

1. SPS for domestic wastewater. They are installed on collectors that drain wastewater from residential and public buildings.
2. SPS for industrial wastewater. They are subject to certain requirements depending on the composition of the pumped liquid. Some structures and equipment require periodic washing and protection from aggressive environments.
3. SPS for stormwater networks. They are installed if rainwater cannot be drained by gravity. This often happens on terrain.
4. KNS for precipitation. Such stations are part of structures designed for wastewater treatment and sludge treatment.

The presence of all stations in one scheme is not at all necessary. It all depends on the throughput of the pipelines, the terrain and the possibility of draining sewer water by gravity.

Purpose

Sewage stations must ensure the lifting of wastewater to less buried sewers and treatment facilities. At the same time, they provide the necessary pressure and supply of wastewater in accordance with the schedule provided for normal operating conditions and for an emergency situation.

Such stations must meet the following requirements:

• reliability and uninterrupted operation
• durability
• ease of repair and maintenance
• possibility of using automation and telemechanics

Features of design and construction

It is important to consider all factors when designing a sewer system

When calculating and designing sewer stations, many factors are taken into account:

• depth of the supply manifold
• regularity and volume of wastewater
• ground water level
• type of installed equipment
• method of controlling pumps and valves

The dimensions of the structure should not exceed established norms and standards. In addition, excesses in architectural design and auxiliary equipment are not allowed.

Important! You should be aware of the possibility of flooding in the surrounding area and take action in case the sewer station is flooded.

The pumping station is designed with the expectation that the amount of wastewater can increase. After all, the drainage load will increase with the expansion of the populated area or with an increase in production volumes.

It is advisable to carry out construction work in a short time, but not at the expense of quality, making maximum use of mechanization and modern construction equipment.

Accommodation

Stations should not be located closer than 20 meters from residential buildings

The best option for locating a pumping station is a free area near industrial enterprises and warehouses (except for food), as well as green areas or vacant lots. In built-up areas they are installed deep in the blocks. In this case, emergency descents into the nearest stormwater network must be arranged.

According to sanitary standards, stations should not be located closer than 20 meters from residential, administrative and public buildings. If the distance cannot be maintained, it can be reduced only after agreement with the sanitary and epidemiological authorities.

Sewage pumping stations are installed if the supply collector lies at a depth of 4-8 meters, which depends on the type of soil. Along the perimeter of the KNS there are green spaces at least 10 meters wide.

If a pumping station is located in an area of ​​flooding, it is installed in such a way that the entrance mark is half a meter above the calculated horizon of possible rise of flood waters.

Design

Pump design

Sewage pumping stations may vary in design. They have a sealed container - a receiving tank for wastewater, where it flows by gravity. Sump stations are also equipped with special grids for collecting large waste that can damage the pump or clog the pipeline.

The most common are mine-type pumping stations. They are made of concrete or prefabricated reinforced concrete structures. Modern stations are made of polypropylene or fiberglass. Submersible pumps, pipelines and fittings are installed inside the tank, platforms and ladders are installed for servicing the pumping station; the sewer system also includes ventilation and a hermetically sealed hatch, which guarantees the absence of unpleasant odors.

The engine room can be combined with a waste tank or located separately, which is preferable.

Modern pumping stations

Sewage station Aquatica

Universal KNS are made from high quality polypropylene, steel or fiberglass according to individual or standard projects. They are intended for both detached buildings and cottage villages or small industrial enterprises.

Modern sewage stations are round, cylindrical or rectangular containers in horizontal or vertical design. Some models have two compartments - receiving and machine. The receiving chamber has a special basket for dirt, which can be removed if necessary. The engine compartment contains pumping equipment with gate valves and check valves. There is a control panel next to the sewer station.

On the market you can find other designs of pumping stations that consist of a single reservoir. It contains all the necessary equipment and sewage pumps. They take up much less space, and this is their advantage.

Installation of sewerage structures is very simple. They are placed on a leveled horizontal surface or concrete platform, and then connected to the outlet and inlet pipelines.

Features of modern pumping stations

Fiberglass pump station with Grundfos pumps

Universal KNS are the best solution for:

• Private buildings with low depth of drain pipes for subsequent discharge of wastewater into a centralized sewer system.
• Collection of storm water from the drainage system and its further pumping from private territory.
• Cottage communities where it is necessary to pump sewage liquids over long distances.
• Various objects with basements from which it is necessary to raise drains to a height.

Important! Modern pumping stations can be installed either on a new sewer system or on an existing one.

They are economical, sealed, durable and easy to install, have a relatively small size and do not require the constant presence of maintenance personnel.

The smallest KNS are intended for domestic purposes. These are sealed containers that can be connected directly to the toilet. They do not spoil the bathroom with their appearance, as they are made in the appropriate design style. Such stations are equipped with small fecal pumps equipped with a cutting mechanism. It avoids the winding of fibrous inclusions and subsequent jamming of the impeller. Such “babies” are capable of pumping out wastewater coming from two bathrooms and raising them to a height of up to 5 meters.

Mini station

Modern CNS have a number of advantages:

• compactness
• environmental Safety
• energy savings compared to large stations
• quiet operation
• low vibration
• attracting a small number of workers to service the automation
• use in different climatic zones
• ease of installation and dismantling
• saving usable space

Conclusion

Installing several modern local pumping stations is preferable and safer from an environmental point of view. If one centralized sewage pumping station fails, it can lead to an emergency with the discharge of wastewater to the surface and leave an entire neighborhood or even a settlement without a drainage system.

Housing options:

• made of fiberglass (high strength, low weight, low cost of installation and maintenance);
• made of metal (double anti-corrosion coating).

SPS from the Ekolos plant are equipped with proven pumps of foreign and domestic production: Flygt, Grundfos (Grundfos), KSB, ABS, Wilo, DAB, Srednevolzhsky Machine-Building Plant LLC, Vzlet JSC.

Types of sewage pumping stations

which you can buy in Moscow at Ecolos Group:

• single-hull,
• multihull,
• with remote shut-off valves,
• with dry chamber,
• in a horizontal housing.

Advantages of purchasing stations from TD Ekolos

• factory quality,
• 5 year warranty,
• installation and dismantling of the pump is simple due to special fastenings,
• reliable operation of the system thanks to installed sensors for monitoring equipment operation,
• savings on maintenance due to the presence of a convenient control panel,
• earthquake resistance.

How to buy KNS?

Fill out the questionnaire and our specialists will select and calculate the price of equipment with delivery to Moscow or the Moscow region to the location of the facility.

You can get advice by calling the hotline listed on the website.

What is KNS?

Recent years in Russia have been marked by nothing less than a real peak in the development of the construction market. The introduction of advanced techniques in construction, as well as “fresh” sewerage and drainage technologies, is being introduced at a confident pace. Sewage pumping stations are a good solution. This is precisely the technology that instantly replaced the ancient gravity sewer systems.

Sewage pumping stations (sewage pumping stations) are equipment designed to transport wastewater to treatment plants. SPS are used when it is impossible to discharge wastewater by gravity.

Through SPS, storm, drainage, domestic or industrial wastewater is supplied to treatment facilities.

Based on technical requirements, sewer pumping station casings are manufactured. The material of manufacture is polypropylene, that is, reinforced fiberglass. The strength of the structure is increased due to the stiffening ribs with which the sewer system is equipped. Also, if necessary, an additional reinforced housing can be manufactured. This is necessary when the station is located at great depth, as well as under the roadway.

The following can be installed inside pumping stations:

• stairs;
• debris-containing fittings, the elements of which are made exclusively from stainless steel or galvanized steel;
• pressure pipelines;
• pump equipment.

CNS are divided into:

• drainage;
• stormwater;
• fecal;
• production;

According to the rules and sanitary standards, water pumping stations must be installed at a distance of at least 20–30 meters from residential buildings.

Today, KNS stations are produced in high-strength cases made of fiberglass and polypropylene. Traditionally, high demands are placed on the strength of the hull. Since Flotenk SSS are mostly installed at great depths. The inside of the pumping station housing is equipped with the following built-in equipment: a system of pumps, pipelines, and valves. They are controlled using special remote controls located outside the housing.

The concentration of pathogenic microorganisms and unpleasant odors is high inside the casing of the pumping station. Therefore, they are equipped with a sealed hatch as protection.

In order to service the sewage pumping station, maintenance personnel are required to descend down special ladders in protective gear. However, for the most part, the manufacturer strives to minimize the presence of people in the building of the KNS station. For this purpose, the following equipment is installed:

• automatic forklifts,
• quick release connections with rubber seals,
• remote control panels.

Sewage pumping stations are produced taking into account all modern requirements. This allows them to be used without problems near residential buildings, since they produce almost no vibration and noise.

To prevent operational failures, as well as emergency situations, during the construction process, several small pumping stations are preferably installed instead of one large one. After all, if one centralized pumping station Helyx, which serves a populated area, fails, this can provoke a number of environmental problems.

Advantages of KNS

Installation. Saving space is the main advantage when installing a water pumping station. There is no need to construct large reinforced concrete tanks and ventilation facilities. For example, today there is no need to install a station larger than 12 m. It is enough to install a modern pumping station, which will be about 1.5 meters in diameter.

Energy saving. The pumping station provides constant good pressure. At the same time, it consumes much less electricity.

Service. Maintenance of the pumping station is not required often, and also requires minimal costs of both money and labor. If an emergency occurs, the data is sent to the dispatcher. This eliminates the need to control the functioning of the CNS.

Operating principles of CNS

Wastewater enters the lower part of the KNS pumping station through the supply pipeline from the septic tank. Pumping equipment is located at the bottom of the lower part of the system. During operation of the pumping station, all valves located on the pipelines are in the “open” position. Each pipeline is equipped with a check valve. It prevents waste water from flowing back into the pump.

The absence of unpleasant odors is guaranteed by a sealed, closing hatch. It is located at the top of the sewage pumping station. In addition, the upper part of the KNS (Alta and Helyx brands) is equipped with a ventilation pipe that performs air exchange.

The KNS pumping station is controlled by float sensors. When they are triggered, the light signals located on the automatic control panel turn on. A phone call or SMS notification is also possible.

The location of the electronic control panel is the technical room of the building or a metal shield on racks located on the surface.

SPS are designed for pumping:

• industrial waste;
• domestic water;
• stormwater to treatment plants or terrain.

SPS are used in cases where it is not possible to drain industrial, domestic and storm water by gravity to treatment facilities or discharge points.

Advantages of fiberglass hulls

The housings of sewage pumping stations are manufactured using the continuous winding method from durable reinforced fiberglass, based on the Customer’s technical requirements. The advantages of such cases:

• chemically resistant;
• do not require anti-corrosion treatment;
• service life more than 50 years;
• low specific gravity;
• strength that does not require additional reinforcement.

KNS stations can be manufactured in various heights and diameters. The thickness of the station walls can vary and depends on the installation depth and the properties of the soil at the site.

Sewage pumping equipment, from the point of view of its payback, is very profitable. Experts have calculated that only 3% of all costs throughout the entire life cycle of pumping stations are accounted for by their initial cost. Moreover, this percentage may be even lower; it decreases in inverse proportion to the quality of the selected CNS. In other words, the higher the quality, the lower the total costs.

To summarize, we can say that the quality of equipment significantly affects the final costs of pumping stations in terms of their entire life cycle.

Design and principle of operation of the CNS

The sewage pumping station of NPO AkvaBioM LLC is a fiberglass receiving tank where water flows through a supply pipeline into a trash basket, where the largest contaminants are captured. Next, the water enters the pressure pipeline using submersible sewer pumps. The pipeline is equipped with shut-off and control valves (gate valve, check valve, pressure gauge, flow meter, etc.). A check valve installed on the pressure pipeline does not allow the pressure pipeline to empty back into the pump housing. For ease of maintenance of equipment and fittings of the sewage pumping station, the reservoir has a service platform and a ladder.

The pumps are controlled automatically using float level sensors and the pump control cabinet.

NPO AkvaBioM LLC manufactures control units taking into account customer requirements.

Taking into account parameters for calculating the pumping pump ratio

• pumping station performance;
• full pressure;
• depth of the supply manifold;
• type of pumped waste;
• hydrogeological conditions;
• working diagram for connecting pumps.

Size	Weight of pump station excluding pumping units units m, kg							Productivity m 3 /hour	Pressure, m
H, m D, m	1,2	1,5	1,8	2,0	2,4	3,0	3,2	up to 10,000	up to 100
2	230	-	-	-	-	-	-
3	338	538	752	882	-	-	-
4	407	648	873	1 029	1 442	-	-
5	476	757	993	1 175	1 621	2 871	3 261
6	545	866	1 113	1 321	1 800	3 160	3 610
7	614	976	1 234	1 468	1 980	3 450	3 960
8	682	1 085	1 354	1 614	2 159	3 739	4 309
9	751	1 195	1 475	1 761	2 339	4 029	4 659
10	-	1 304	1 595	1 907	2 518	4 318	5 008

The height of the body can reach up to 15 meters, the pressure height of the pumped waste up to 100 meters. The dimensions of the pump station can be designed and manufactured according to individual parameters and technical specifications of the customer.

The company NPO AkvaBioM LLC manufactures the following types of sewage pumping equipment.

Pumping station with submersible pumps.

H - height;

D - diameter;

D2 is the diameter of the outlet manifold.

1 - supply manifold;

2 - submersible pumps;

3 - automatic pipe couplings;

4 - pressure pipe assembly;

5 - litter basket;

6 - float sensors;

7 - stairs;

8 - service area;

9 - hemispherical bottom;

10 - ventilation riser;

11 - safety grill;

12 - pump station cover;

13 - control cabinet.

H - height;

H1 - depth of the supply manifold;

H2 - depth of the outlet collector;

D - diameter;

D1 - diameter of the supply manifold;

D2 - diameter of the outlet manifold;

D count - diameter of the well.

2 - wastewater pumping chamber;

3 - supply manifold;

4 - litter basket;

5 - pumped drain;

7 - pipe assembly with shut-off and control valves;

8 - float sensors;

9 - partition;

10 - stairs;

11 - service area;

12 - ventilation riser;

13 - safety grill;

14 - cover of the pump station.

Installed pumping equipment

Specially designed bottom design

A distinctive feature of the SPS produced by NPO AkvaBioM LLC is the specially developed design of a fiberglass hemispherical bottom. This design allows you to avoid siltation in hard-to-reach places along the perimeter of the bottom and concentrates the main volume of wastewater directly under the pumps.

In addition, the hemispherical bottom has sufficient strength to install pumping equipment on it without the use of additional reinforcing elements, which in turn lightens the weight of the station itself and simplifies and speeds up the manufacturing process of the pump station. This bottom is a modern design solution.

Sewage pumping stations made of fiberglass

This type of housing is made by winding glass fiber using a specialized machine onto a matrix. The housing made in this way becomes the basis for the subsequent placement of a set of pumping equipment inside it.

The set of necessary automation is formed in accordance with the client’s wishes and needs.
Fiberglass is one of the most comfortable materials from which a pumping station can be made. The fiberglass body does not rust during the process, and is also not exposed to aggressive environments that inevitably arise during the operation of the facility. It can be noted that the ratio of characteristics and cost of production of such a housing makes fiberglass sewage pumping stations one of the most profitable. But it is also important to remember that a fiberglass sewage pumping station can be quite fragile, which can create some serious problems if the structure is installed poorly: integrity and tightness may suffer.
This material cannot be repaired, but the average service life of a pumping station made from this material is about 50 years.

Sewage pumping station made of polyethylene

The production of this type of pumping stations is based on a spiral pipe. The manufacture of a polyethylene body involves extrusion welding, which ensures complete tightness of the product and no need for waterproofing.

The material itself is resistant to various external influences, both chemical and mechanical. If necessary, you can always carry out routine repairs of the pumping station - the material is suitable for restoration. This material can withstand a wide range of high and low temperatures without losing its elasticity. The elasticity of the material affects the possibility of using such enclosures in places with cold climatic conditions, and also allows you not to worry about their condition under increased loads or inaccurate installation. For earthquake-prone regions up to 9 points inclusive, we offer buildings of increased resistance, with increased wall thickness and ring stiffness class SN8 (8 MPa/m2).

Sewage station made of polypropylene

Polypropylene is a material unique in its composition and properties. This type of raw material has high strength characteristics, and is also a wear-resistant material, resistant to mechanical damage, chemical attack and is not susceptible to rust.

To enhance strength, additional stiffening ribs are installed throughout the body. They are suitable for underground installation and are guaranteed to last at least 50 years. The production process takes a small number of days. In this case, production is also carried out by extrusion welding. If necessary, this material can be completely repaired. In our company you can buy a sewage pumping station at a cost lower than a pump station made of fiberglass and polyethylene. We offer our customers the best prices for sewage pumping stations made of polypropylene, since this is the most practical and durable material with which customers are guaranteed not to have problems.