The problem of optimal pressure in the water supply network has appeared for a long time. The need to install water meters is legal. This leads to additional branching of the pipes, since water-measuring unit Is the necessary element of each apartment. A cunning and complex interlacing of water pipes of apartments of tenants of high-rise buildings required to break this Gordian knot and provide an opportunity to brush teeth at last. In the evenings, there was nothing left to do but wait for "his" liberated portion of water. What should I do: write a lacrimal complaint in the housing office or install the pump by myself?
Content
When is water
To be frank, the desired pressure in the water supply network in most cases does not correspond to the regulatory parameters. A unit of pressure is 1 bar equated to 1 atmosphere.
According to the regulatory requirements imposed on the water supply network of the consumer, such pressure in the water pipe should theoretically leave 4 atmospheres. However, in practice the pressure in the water supply network varies from 2.5 to 7.5 atmospheres. Holders of the laid 4 atmospheres sit silently and enjoy the benefits of the aqueduct. But what to do for those who can not work properly washing or dishwasher, because the pressure does not reach 2 atm.
Sit waiting for the neighbors to top or bottom to bathe or wash their laundry - when is the water? The output itself suggests itself: it is necessary to install a pump designed to increase the pressure of the tap water.
With what equipment can you increase the pressure in the network
Increase the pressure in the water supply using the following equipment:
• Pumping station with a storage tank
• Installing a water pump to increase pressure.
Pump station with storage tank
Undoubtedly, a pumping station equipped with a storage tank will be able to solve the global problem of tap water shortage.
The capacity of the accumulator tank or storage tank can provide a certain supply of tap water, sometimes even exceeding the daily human need for water. The pump station is a structure consisting of a surface centrifugal pump connected to a hydraulic accumulator and a water pressure pressure switch.
pumps designed to increase pressure
Pressure boosting pumps are used to increase productivity and pressure in the water supply network of apartments or private houses.
The compact design of this pump allows you to install it in front of the water intake. In this case, the volume of the increased head is calculated for one or two points of water consumption in the apartment. It is necessary to distinguish pressure pumps of one- and multi-stage.
When choosing a pump that increases pressure, special attention should be given to the overall dimensions of the pump. The installation site should assume a minimum of labor, because the pumps are mounted directly into the pipeline and take up little space. The operation of compact pumps is controlled by an automatic control system and manually. Recall that the installation of pressure boost pumps is recommended for those who plan to increase the tap water pressure by 1.5 atm.
How to choose equipment to increase pressure in the water supply network
First, you need to determine how the water comes from the network. The following options are possible: in the case when water flows from the tap, but its pressure leaves much to be desired, it is necessary to apply a pump raising. If there is water in the water supply network, for example, neighbors, from the bottom, and you do not get anything, you need to choose a self-priming pump station. For example, a water pressure boost pump wilo.
The classification of pumping equipment distinguishes between pumps by the way the chassis is cooled.
For these purposes, the impeller of the engine or the pumping fluid is used. Pump rising to cut into the water pipe at the entrance. The efficiency of this pump is carried out in two exclusive modes of operation: automatic and manual.
The cooling system of the motor housing distinguishes between pumps with a "dry rotor" and a "wet rotor". The difference lies in the cooling system of the electric motor. In pumps with a "dry rotor" type, the cooling of the housing is carried out using an impeller.
The pump is separated from the electric motor, however, the sound of the running electric motor is quite noticeable. Models of pumps with a "wet rotor" are cooled by the pumped liquid and are almost noiseless.
So, for example, in the grundfos pump, the "wet rotor" design has been successfully used to increase the pressure. The essence of the design is to immerse the rotor in the water and separate it from the stator with a stainless steel sleeve. The absence of an air fan ensures quiet operation.
To install a pressure increase pump, the price of which is quite democratic, it will be necessary to additionally install a screen filter to prevent unwanted mechanical impurities from getting into it.
What are the advantages of installing and using a glandless pump with a "wet rotor"? Of course, such parameters:
• Insignificant overall dimensions and weight
• in-line execution with direct installation
• trouble-free automatic on-off
• Insignificant consumed electric power.
More information about Grundfos pumps is available here.
How to connect the pump to increase the pressure
pump station
Connection of the pumping station in order to increase the pressure in the water supply system is based on the principle of operation of the shut-off valve.
The scheme for connecting the pumping station consists of the following elements:
• Pumping station
• Stop valves
• coarse filter
• water flow meter
• check valve
• Float valve
• emergency water discharge pipes
• Bypass.
The principle of operation of the pumping station for increasing the pressure is as follows. Water from the water supply network enters the storage tank. The storage tank is equipped with a float valve, which controls the level of incoming water. The pump station automatically turns on when there is a water flow.
The pumping station pushes the installed pressure of the indoor water supply network and turns off, ensuring the constant presence of water in the tank.
The only inconvenience is the cumbersome construction of the storage tank and the piping of the system.
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