Fire Pump Equipment

Applications
1. The fire extinguishing system of enterprises and institutions, construction, high-rise buildings and other fixed fire -fighting system, automatic sprinkler system.
2. High-rise building zoning fire-fighting system, fire and life, production
of common water supply systems and construction, municipal, industrial and mining, boiler feed water and other occasions.
3.Fire water supply and emergency water supply in docks, warehouses,airports, petroleum, chemical industry, power plants, liquefied gas, textiles, ships, oil tankers and other occasions.

This series of diesel fire-fighting pump sets has a wide range of head and flow, which can fully meet the fire-fighting water supply in various occasions of warehouses, docks, airports, petrochemicals, power plants, liquefied gas stations, textiles and other industrial and mining enterprises.

The electric fire pump set is an important fire pump equipment, usually in a horizontal state. Each pump group is composed of five parts: front pump, electric motor, hydraulic coupling, main feed water pump, lubricating oil device (including lubricating oil cooler and working oil cooler. In normal state, two sets are running, one There are two standby pumps, and any feedwater pump set can be used as a standby pump. When one of the two running pumps stops due to an accident, the standby pump will be put into operation automatically.

The fire control cabinet is widely used in many high-rise buildings, shopping malls, schools and other crowded places. This equipment enables the fire pump to cut off the circuit or alarm through the components in the fire control cabinet when it fails, and play a warning and The role of protection.

The application range of common domestic water supply equipment: waterworks, pressurized pump room, residential area, hotel and other buildings, enterprise production water, boiler circulating water system, farmland irrigation system.

Horizontal fire pumps are designed according to the principle of centrifugal force. The high-speed rotating impeller blades drive the water to rotate and throw it out, so as to achieve the purpose of transportation. There are many kinds of centrifugal pumps, which can be divided into civil pumps and industrial pumps in use; from the perspective of conveying media, they can be divided into clean water pumps, impurity pumps, corrosion-resistant pumps, etc.

Diesel engine fire pumps have been widely used as fixed fire extinguishing equipment for fire diversion, especially in the case of sudden fire water supply such as lack of power supply or abnormal power supply. , fire pump, connection device, fuel tank, radiator, battery pack, intelligent automatic control screen, etc. Diesel engine fire pump products have the characteristics of leading technology, high degree of automation, excellent performance protection function, reasonable structure, simple installation and high cost performance. At the same time, in order to meet the different needs of users and reasonable investment, the products are divided into multiple application series such as fire pumps, industrial emergency pumps, agricultural pumps, marine pumps, and trailer-type mobile water pump stations. It can be used together with electric fire pumps.

Fire pump refers to a clean water pump used for fire water supply, and a single water pump with a treatment medium temperature lower than 80 degrees and non-corrosive. The pump unit is a joint operation of multiple fire pumps to ensure the quantity and stability of water supply. The electric motor fire pump set adopts multiple fire water pumps powered by electric motors.

Diesel engine fire pumps are often used for emergency water supply in high-rise buildings, water companies, steel plants, wineries, chemical plants, hotels, hospitals, and other large-scale projects. The diesel emergency water supply pump set is suitable for unattended emergency water supply systems. The product has the characteristics of high automation, superior performance, complete protection functions, reasonable structure, simple installation, and high cost performance. pipe network pressure.

As a fixed fire-fighting equipment, the diesel engine fire-fighting pump set has been widely used in fire-fighting diversion, especially for fire-fighting water supply in unexpected situations such as no power supply or abnormal power supply (mains power).

Horizontal fire pumps have significant advantages such as high efficiency, low operating noise, good anti-cavitation performance, reasonable structure, and long service life. , Long-distance water delivery, heating, bathroom, boiler cold and warm water cycle pressurization, air conditioning and refrigeration system water delivery and equipment matching and other occasions.

1、Inspection function: the equipment can automatically or manually inspect the fire pump at regular intervals according to the cycle you set.

3、Protection and alarm function: when the fire fighting system has a motor power failure, over-current, short-circuit, etc., the inspection cabinet will automatically issue alarm and protection function, and issue sound and light alarm signal.

4, remote monitoring and control function: inspection cabinet can communicate with the fire control centre through the bus, to achieve the purpose of monitoring the operation of the system in the fire control centre.

5、Water test function with pressure: the inspection cabinet can carry out water test with pressure on the pipeline system according to the configuration of the fire protection pipeline.

6, mobile phone SMS alarm function: Shanghai Xizhiquan inspection cabinet can be configured according to the needs of users, choose to configure mobile phone alarm.

An anechoic check valve, control valve and pressure gauge should be installed on the discharge pipe of the fire pump; a pressure gauge and pressure switch should also be installed on the total discharge pipe of the system; a buffer device should be added when installing the pressure gauge. A cork should be installed between the pressure gauge and the buffer device; the pressure gauge range should be 2 times to 2.5 times the working pressure of the system when there is no design requirement.

1, The pump packing pressure is too tight or too loose leakage
Treatment: adjust the tightness of the gland
2, multi-stage water seal ring position offset leakage
Treatment: adjust the position of the water seal ring so that the water seal ring is exactly aligned with the water seal pipe mouth.
3、The fire pump packing wears too much or the sleeve wears out and leaks water
Treatment: Replace the packing or shaft sleeve

1, The fire pump in the installation, the pump bolt slack leakage
Treatment: adjust the front position of the fire pump, slowly tighten the screws of the outer ring of the pump body one by one, do not tighten one screw at a time
2、The sealing surface is not flat, the liquid in the pump will flow out to the pump along the place where the seal is not tight
Treatment: provide vertical multi-stage fire pump model parameters to replace the mechanical seal
3, Mechanical seal amplitude hair wear serious, seepage and water leakage occurred
Treatment: adjust the friction position of the seal ring, take out the seal ring, and then exchange the orientation equipment, such as the seal ring on the fastening spring loss of elasticity or cracking, can remove the spring, with the appropriate diameter of steel wire or wire tied
4、The fire pump body has sand holes or rupture
Treatment: Replace the pump body of the fire pump

There are numerous ways to maintain fire pumps and water pumps. The following styles are more effective. You can use them for reference
System 1 The installation of the pump set should be accurate and dependable, and there should be no egregious vibration duringoperation.However, or the bearing is hot to the touch( the temperature is advanced than 60 °C) and the water seepage in the seal of the pump shaft is further than 60 drops per nanosecond, the cause must be set up out and the fault should be excluded in time, If the pump makes abnormal noise when pumping water.
the
system 2 Screws that are squinched daily, similar as packing gland screws, irrigation entrapments,etc., should be disassembled with a suitable wrench and a reasonable necklace. You can put some slicking oil painting on it or wipe it regularly with an oil painting cloth to help rust; if the water drain screw isn’t used constantly, it’s easy to rust, so after buying a new water pump, you should first wind the water drain draw, and apply some machine oil painting and white lead oil painting on the screw thread, Change the new oil painting two or three times a time in the future.
the
System 3 If the pump is waxed with machine oil painting, the slicking oil painting should be replaced once a month; if it’s waxed with adulation, it should be replaced every six months. It should be noted that the water pump uses calcium- grounded grease, and the motor uses sodium- grounded grease, and they shouldn’t be used inaptly. Because sodium- grounded grease is hydrophilic, it’ll emulsify into froth and dissipate when it encounters water on the pump, while calcium- grounded grease is hysterical of high temperature, so it’s easy to melt when the temperature rises when used on a motor.

system 4 Don’t pump water with too important beach, so as to avoid unseasonable wear and tear of the impeller, mouth ring and shaft, and try to help water deficit operation. Running without water will damage the water seal, and the water pump is prone to water leakage or indeed no water.
System 5 After the irrigation and drainage season is over, the water pump should be precisely gutted and auditedimmediately.However, they should be repaired or replaced in time, and the corridor that should be waxed should be filled with suitable oil painting; Stylish stored in a dry place, If any damaged or misshaped corridor are set up to be unworkable.

Horizontal single-stage electric fire pumps are widely used, such as family houses, hotels, office buildings, hospitals, etc. Of course, different types of single-stage electric fire pumps can be used in different places of use.

The diesel engine fire pump is suitable for unattended emergency water supply systems. The product has the characteristics of good technology, high degree of automation, superior performance, complete protection functions, reasonable structure, simple installation, and high cost performance. pipe network pressure.

Problem one lower water or no water
1, electric pump reversal will lead to the pump doesn’t produce water.
2, the pump can’t normal water into the same can’t be water, check whether the water bay or check stopcock is blocked or stuck, pumping pipe if there’s a leak will also affect the water into the water.
3, the pump internal corridor of the wear and tear or connection out, check the pump and motor coupling wear and tear, loose and impeller is worn.

Problem two ：
1 、 Check the power force as described over, including connectors, switches, fuses,etc.
2. Check whether the impeller in the pump is jammed by foreign objects
3. A burnt motor will also affect the launch of the pump.

Problem three the water affair is big for a while and small for a while
1. still, the lack of depth down the well may beget this problem, If the pump is a submersible pump.
2. The inflow rate of the pump is too high and needs to be replaced with a suitable pump.

1, impeller inflow channel blockage
First of all, the most intuitive problem, check whether the impeller is stuck in the main blockage, if so, timely cleaning can break theproblem.However, filtering bias can be added to the front of the pump bay to avoid the impeller runners being blocked again, If necessary.
2 、 Inside leakage
When the gap between the connection points of colorful corridor in the pump is too large, it’ll beget the pump to blunder, performing in a drop in discharge pressure. When this problem occurs, dismembering and form should be carried out.
3 、 Cavitation
still, performing in the pump bay pressure is lower than the impregnated brume pressure of the pumping medium, it’ll form cavitation, If the bay pipeline system has no blockage or the bay stopcock opening is too small. At this time, the blockage should be cleared or the bay stopcock should be opened wide, or the liquid position of the bay pool should be increased.
4 、 drop in rotational speed
Check whether the speed of the pump is reduced because of certain factors, the speed is commensurable to the head, if the speed of the problem, check the reasons, reasonable results.
5 、 Motor reversal
Observe the steering of the pump, if the steering is reversed, exchange the two cables on the outstations of the motor.

Diesel engine fire pump is a kind of fire-fighting equipment that we often see and use in our life. The diesel engine fire pump has the characteristics of good starting performance, strong overload capacity, compact internal structure, convenient maintenance, simple operation and high degree of automation. It is a very reliable fire fighting equipment.

First, what’s a water pump? It’s a device used to transport liquid, pressurize the liquid, and make the liquid from the first liquid position to the high liquid position. The first water pump constructed by the Chinese is called” water windmill”. latterly, around 300 BC, the emergence of the” Archimedes screw pump” is more analogous to ultramodern pumps. In addition, the following introductory knowledge points are what you must understand.
1. Centrifugal pump

Centrifugal pump is the most common type of pump. In simple terms, the working principle of centrifugal pump is to rotate the impeller to drive the liquid under the action of centrifugal force. The liquid leaves the impeller and enters the volute. As the inflow passage of the volute gradationally expands, the fluid haste slows down, and the pressure rises continuously, and eventually it’s discharged through the conduit.
2. Impeller
The impeller is one of the main factors in the water pump, and it’s the core element that transmits mechanical energy to the liquid. The impeller is substantially divided into three types open type,semi-open type and closed type. The material conditions for the impeller are high, wear resistance is needed, and the manufacturing process is good.

3. Cavitation

Cavitation is the conformation of numerous bitsy recesses when the liquid connections the liquid under high- speed inflow and pressure, and gradationally expands into grottoes when serious, and cavitation frequently occurs in the impeller and pump covering.

1. Connection form

The vertical water pump is connected with the motor by the coupling, which needs to be aligned regularly; the perpendicular water pump is superimposed and connected from the bottom to the top, and the perpendicular water pump is generally called the channel pump.

2. Installation form

Compared with perpendicular water pumps, perpendicular water pumps are easier to install. The vertical pump set is handed with a base, and perfection adaptation is needed after installation.

3. conservation difficulty

Since the perpendicular water pump is composed of upper and lower layers, the conservation of the perpendicular water pump is more delicate. For illustration, to repair the impeller, it’s necessary to remove all the corridor above the impeller before repairing; while the vertical water pump is fairly easy. For illustration, the IS type pump can perform impeller conservation by removing the bay pipe.

4. bottom space

It can be seen from the appearance that the vertical water pump has a base due to its vertical structure, so it occupies a large area.

Floating impeller axial force tone- balancing device
The balancing slice device has two gaps, the radial gap behind the impeller and the axial gap of the balancing slice, because of these two gaps, the balancing slice can automatically acclimate the axial l gap to achieve automatic balance of axial force, and the tableware rotor is in a floating state.

The principle of the balance plate is scattered to the impeller, the impeller back mouth ring radial concurrence below the axial concurrence, this device that’s the same as the balance plate, the conformation of two gaps, only in a different position. Because the impeller has these two gaps to round each other, so that the impeller can also achieve automatic balance of axial forces.

Starting with a cargo can beget damage to the motor, the factual use of head is too much lower than the pump nameplate head; submersible pumps without water work for too long.
First, first figure out whether the motor burn is burned comportments( mechanical failure) or burned coil( electrical failure).

still, substantially due toover-current, occasionally the voltage is too high or too low will also beget the coil to heat short circuit, If it’s the fault of burning the coil.

1. The rotational speed is adjustable, and the rotational speed of the diesel engine can be adjusted according to the flow and head of the water pump.

2. Dual battery. It adopts the method of one use and one backup, which automatically charges to ensure that the device can be started at any time, with higher safety. And the battery is a maintenance-free battery, no need to add refill.

3. Preheating function. This fundamental guarantees that the device can be started even at low temperatures.

4. Regular inspection. The regular automatic inspection function can be set as needed, without manual operation, to find problems in time and ensure the safe and effective normal operation of the equipment.

5, data remote legend. The device not only has a remote start function, but also can transmit data through the app.

At the morning of the design of the fire pump, the lift, inflow and power are different according to the occasion and model. In general domestic structures, the choice of fire pump is also different according to the age, the height of the bottom, and the number of residers.

The fire pump is used for conveying clear water without solid patches and liquids with analogous physical and chemical parcels to water. Water force, heating, restroom, boiler hot and cold water rotation, water force of pressurized air exertion refrigeration system and outfit matching and other occasions.

The EDJ fire pump unit consists of a fire pump, a double-shaft motor and a diesel engine. One end of the output shaft of the double-shaft motor is connected to the input shaft of the fire pump, and the other end of the output shaft of the double-shaft motor is connected to the One end of a clutch is connected, and the other end of the clutch is connected with the output shaft of the diesel engine. The fire water pump, the double-shaft extension motor, the clutch and the diesel engine are all fixed on the base. The double shaft extension motor, the clutch and the diesel engine are respectively electrically connected with a control circuit through an action driving circuit. With dual-power fire pumps, there is no need to configure a second fire pump, which reduces floor space and saves manufacturing costs.

The bought fire fighting outfit has been successfully loaded on the truck moment. It’s composed of delirium liquid position hand, air force air compressor, curvaceous stopcock air compressor and other factors, and the fire water force within 10 twinkles. The device can also be connected in resemblant with signals similar as fire pipings, fire buttons, bank admonitions, temperature and pressure to control fire pump outfit.

This outfit is suitable for hospices, manufactories, storages, domestic diggings, office structures, entertainment places, low- rise structures that are inconvenient to set up high- position water tanks, or hidden systems, temporary structures and other structures that aren’t suitable for high- position water tanks.
The bought fire fighting outfit has been successfully loaded on the truck moment. It’s composed of delirium liquid position hand, air force air compressor, curvaceous stopcock air compressor and other factors, and the fire water force within 10 twinkles. The device can also be connected in resemblant with signals similar as fire pipings, fire buttons, bank admonitions, temperature and pressure to control fire pump outfit.

This outfit is suitable for hospices, manufactories, storages, domestic diggings, office structures, entertainment places, low- rise structures that are inconvenient to set up high- position water tanks, or hidden systems, temporary structures and other structures that aren’t suitable for high- position water tanks.

Control press suitable for the main part of control and examination, a variety of small communities, estates and other fire fighting water force systems, artificial or civil structures, libraries, oil painting lading and unloading outstations, logistics premises , hospitals, seminaries, Shi type square and other public installations of colorful fire pipings, sprinkler fire main pump, fire supporter stabilized water force outfit and other fire fighting water force systems.

The control press substantially controls the controlled control press to execute the destined action, transmits the signal between the fire control relation regulator, and indicates the working status and fault status of the power force, control control press and controlled control press.