Fire box booster pump

In general, the word booster means booster and the pump booster is referred to as one or more sets of multi-pumps that are connected in parallel by the necessary plumbing and other chassis-related equipment to the water level, supply and supply water needed for water supply or firefighting systems, especially in high-rise buildings, for domestic, industrial, agricultural and pool use. The fire box booster pump is usually used to prevent an electrical and mechanical impact during the pump start-up of the inverter, which results in a slow start-up of the elector motor, gradually increasing the pump distance and power, as well as completing the pump power at maximum discharge volume or water pressure not sufficient second pump automatically enters circuit

Also in the booster pumps that are constantly running or in other booster pumps used in industry and agriculture the PLC system is used to change the switch start of pumps is called change over booster pump switch start system

 

Uses of fire box booster pump

Various buildings such as towers, hospitals, schools, sport halls

Residential complexes and apartments

Supply of fire extinguishing system

Agricultural and irrigation uses

Industrial water supply for factories and industries

 

The basis of fire box booster pumps

:Some of the basic principles of fire booster pumps are

(These booster pumps are expected to generate a pressure of 120-140% of their nominal pressure (at zero below rate

The booster nominal point generates a pressure and flow pump equivalent to 100% of the nominal pressure and flow

The highest expected flow rate from a fire pump booster is a flow rate of 150% nominal flow rate at a pressure of 65% nominal pressure

The characteristics of these three components help define the pump booster characteristics curve for a specific fire booster pump

 

Appropriate size of a fire booster pump

Most experts believe that a fire box booster pump should be large enough to contain enough water (current and pressure) for the most expected flow of any single stringer or flood system

The booster pump is made up of several components

:These components include

Pump

Electrical panel

Input and output collectors

Connections

Chassis

Diaphragm tank

Each of the booster pump components may be made from the best brands available on the market, but the initial selection of the final assembly of .the plc set and their commissioning, if not properly performed, alone cause the booster pump set to malfunctio

Notable point

On the other hand, to the extent that the use of a booster pump reduces energy consumption, reduces maintenance and comfort costs for consumers, non-expert selection and non-compliance with the require standards in this sector increases energy consumption and maintenance costs, and repairs are also a waste of time and dissatisfaction and comfort for consumers. Unfortunately, due to the over-attention of buyers to the initial market price of low-cost and low-cost systems, the boom has boomed. However, several times the initial purchase price will be spent on electricity, repairs and maintenance, which will not satisfy consumers. Therefore, the initial investigation of the buyers will both satisfy them and pave the way for more appropriate services by reputable and active companies

Booster material for fire box booster pumps

Booster pump shell depending on the working pressure of the booster pump, the booster shell may withstand casting of gray cast iron GG25, GGG40, ductile iron, bronze or stainless steel

Impeller

Based on NFPA 20 and UL 448-FM1311, booster impeller fire box pumps must be of bronze or stainless steel. Cast iron impeller should never be used in a fire pump booster

Axis

The booster pump axis should be stainless steel. In addition, the FM1311 and UL448 standards set out clear rules for the design of the fire pump booster axis

sealing

Graphite tape without asbestos

bearings

lubricated bearings with grease bearings should be strong enough to last for up to 5000 hours at maximum bar

Booster function of fire pumps

Should be based on standard

Electrical motors

Should be based on standards

diesel engines

quality

diesel engines used in high quality reliable fire box boosters should be designed for fire systems

Environment temperature and high

When the diesel engine is selected, the ambient temperature and altitude must be taken into account

Flexible couplings

Booster pumps and diesel engines should be coupled by flexible couplings

Governor

Diesel engines must be powered by a governor and capable of adjusting the diesel speed to between 10 % shot off and the maximum booster pump load

Over speed shut down device

The diesel engine must have over speed shut down device that turns off the diesel when the speed is increased to 20%

Tachometer

The engine should equip with tachometer

Manometer

The engine should have oil manometer

Thermometer

The engine should have thermometer

Control panel

All motor control indicators must be properly connected to the control panel

Save battery

Each diesel engine should equip with two save batteries

Crankshaft speed

Each battery must have twice the capacity to maintain the crankshaft speed recommended by the manufacturer

Contactors

Both batteries must have hand-held contactors to enter the circuit

Other equipment

The suction and thrust valves must be of the OS & Y type

When between suction flange diameter and suction pipe there is a difference in size an off-center convertor should be use

 

Fire box booster pumps must have casing relief valves, drain air valve at output (for split case 2 suction booster pumps) and a manometer

 

Jockey booster pumps   

Jockey booster pumps are used to keep the pressure constant throughout the fire system

The jockey pump must have sufficient outlet pressure to provide the required fire protection system pressure

Jockey booster pump also prevents ramming when main booster pump enters circuit

Booster control system with electric drive fire pumps

Features

the panel should be built specifically for booster operation of electrically driven fire pumps

All control systems must be tested, manufactured, assembled, wired and tested before being shipped from the factory

The design of the control system must be very reliable

The meaning of each lamp or button and the like on the panel should be written in such a way that it cannot be erased or removed

Enclosure

The panel must be substantially protected against water droplets. (at least based on IEC & NEMA). When installing equipment in outdoor or special environments, the degree of protection of the panel should be appropriate.

The panel should be fully ground.

Standing or wall panels should be equipped with all the necessary equipment for installation.

Panel should be lock reliably.

Setting up and control

Setting up and control should be manually or automatic

Automatic controller should be self-acting for setting up and protection of electro motor

When the pressure switch is used the switch must be used independent of the upper and lower caliber settings in the control circuit

For manual mode, the manual operation of the control panel must be such that the engine is manually switched on and the manual switch operation does not affect the pressure switch

Signal equipment and alarms

A visible marker should display power access in all phases

Phase failure or phase reversal at the motor contactor terminal must be monitored. All of the phases should be monitored

 

The advantages of variable circular booster pumps

Constant output water pressure of the system if water consumption changes

No need for a diaphragm tank and reduced space in the engine room

(No need of jockey pump (spare pump

Remove ram impact on consumption grid due to instantaneous switching on and off

The amount of water pumped by a booster pump is equal to the amount of water consumed

Reduce depreciation of couplings and moving parts of electro pumps and subsequently extend the useful life of the entire variable booster pump system

Reduce service and maintenance costs in variable-distance booster pumps

Reduce power consumption costs by up to 30% due to the use of a gradual shift system or inverter

Generally, types of booster pumps for water supply, fire box, industrial and etc., after selecting the number, model and type of electro pump required for the project (such as Lovara pump, Pentax pump, Ebara pump, Granfos, Pump Iran, etc.) by the design employer and approved by the technical office or project consulting engineers according to the technical and experimental criteria of the protection experts

When comparing booster pumps for water supply and fire box booster pumps, be sure to consider the quality of valves and fittings, the type of the brand and power of the pumps, the power switch and steering circuit quality, pump assembly quality, pump booster collector and operation, and … be careful

 

Controller performance circuits

:The controller must be equipped with the following operating circuits

Motor operation and booster pump

Two phase current

Phase reverse

Controller is connected to alternative source

 

Booster control system for diesel-powered fire pumps

Features

Controllers should be specially designed for diesel engine fire box booster pumps

All control systems must be tested and assembled by the manufacturer before assembling

All controllers should have diesel engine fire pump controller sign and the manufacturers name should be inserted in the appropriate place

Enclosure

The controller should be as close to the diesel engine as possible and installed next to it

The controller must be installed in place or protected by preventing water from splashing on booster pumps or connections

The enclosure must be based on NFPA70 standard

Setting up and control

Setting up and control should be automatically or non-automatically

The controller primary power supply should not be AC power

`when the water pressure control system is used, the control circuit must have a pressure switch independent of the upper and lower calibration settings

Signal equipment and alarm

:There should be separate markers and alarms for the following situations

Failure of automatic engine start

Engine shut down due to over speed

Battery failure

Disabling the battery charger

Very low oil pressure in the lubrication system

Cooling system temperature

Connections and wiring

The wiring components of the controller shall be such that it is suitable for permanent operation. NEMA MG 1

All electro motors must be suitable for permanent operation

Engines should not have an invoice service of less than 1,15

Whenever it is possible to spray water, the motors must be TEFC type

When there is uncertainty in the supply of electricity, the power supply must be supplied

When the generator is used to power the booster pump electro motor, the power source must have the NFPA standards

 

Benefits of Pars dama fire box booster pump

Replaced pump operation order and pump replacement if first pump fails

Automatic starter limited pump system (15seconds) to check the whole system and prevent pumping

Automatic water storage tank level control system

Intelligent fire alarm control booster package complete control system includes electric and mechanical automatic pumps

Capable of sending message to the operator when ordering or displaying alarms on the display panel and system crash siren

Fire box booster pump belongings

Booster pump chassis

chassis booster pumps with studs of number 4,6 and 8 depending on the size of the pumps that are painted after degassing and mounted on the chassis under the chassis, or at the request of the client using steel profil material

Electrical panel foundation

The electrical panel foundation is of the corer type 4,6 and 8 depending on the size of the panel used and painted after degreasing

Electrical panel body

electrical panel is made of 1/5 mm sheet with electrostatic paint coating and has fan

Control panel

The booster pump control panel is mounted on the panel door, which can display the performance of each pump

Automatic and manual system

Automatic and manual selection system to test or remove any pump from the circuit in case of technical failure

Self-service system

(Self-service system in fire box boosters. (at customer’s request

Split pumps

Chang over and auto change systems (each pumps works equally). Equal distribution of spare pump between main electro pumps

Signal and system shut down

Signal and system shut down during water shortage in circuit and automatic startup after water shortage

Electro pomp protection

Protection of electro pumps against high pressure 

Flange and collector

PN16 flanges and collectors from seamless manziman pipe and hot or heavy galvanized fittings or steel to customer’s request

 Oil manometer

oil manometer 16 bar with 6cm or 10 cm sheet from stainless steel

protector

protection of electro pumps for number and raw of phases

Water deficiency immune system

Safety system alerts water scarcity at source by on-screen alert

Protection system

Announces safety and protection system for working without water

Phase control system

Phase control safety system to prevent two-phases current and voltage and current changes

N system

N- immune system when fuselage phase connection

Stainless steel

Consumer valves, three way straps and spring automatic valve are of the original Italian CIM type or at customers request stainless steel

Shielded cable

The pumps are covered by shielded cables with a flexible flexi tube and attached to the panel