diesel driven fire pump

Diesel engine fire pump unit is a kind of pump equipment that is widely used in fire protection, and it is more suitable for mobile work in fire pumps. In fact, it is driven by a diesel engine connected to the pump head of the fire pump. Compared with motor drive, it can be used in the field, mines, and places lacking power supply. It is also called a diesel engine pump or a diesel engine fire pump unit.

The hand-push small mobile pump truck is directly driven by the diesel engine. The pump truck has the characteristics of small size, large flow rate, high suction lift, strong reliability and strong mobility. This pump truck is suitable for urban and rural roads, tunnel rescue and various complex working conditions. The effect of stability and shock absorption is also one of its highlights. It is mainly used for rapid small-scale drainage treatment, flood control sewage discharge, emergency drainage, etc. in factories and construction sites.

Fixed fire water supply equipment can use fire pumps driven by electric motors, or fire pumps driven by diesel engines. The international standard name of diesel engine fire pump set is “engineering diesel engine fire pump set”. It uses diesel engine as power to drive fire water pump, and outputs pressurized water or air foam mixture for fire extinguishing work.
When dual power supplies are required or in order to further improve reliability, fire water supply equipment often adopts fire pumps driven by diesel engines. After the various components of the diesel engine fire pump set have passed the strict certification test, their reliability is much higher than that of the electric motor fire pump set.

There is a combination equipment that uses diesel as fuel for firefighting, but it is usually used as a backup firefighting facility, because it can only be started automatically when the firefighting signal comes, and the electric water pump fails or the power supply is cut off, that is, the diesel engine firefighting pump set. It is very different from the electric fire pump in that it has its own independent power supply and storage system.

Diesel engine fire pump sets are mainly suitable for fire water supply and foam fire extinguishing systems in petrochemical, natural gas, power generation, cotton and linen textiles, warehouses, airports, docks, high-rise buildings and other industries. It can also be used in occasions such as water ships, offshore oil tankers and fire fighting ships. The unit adopts imported diesel engine and fire pump. It has the characteristics of quick start, reliable water diversion, reasonable power reserve, stable operation, high degree of “three modernizations”, wide range of pressure and flow, etc. It is an advanced and reliable fire-fighting equipment.
Rational use and careful maintenance of the pump set is an important prerequisite to ensure the normal and reliable operation of the pump set, give full play to the emergency function and prolong the service life. In order to make the pump set operators familiar with its structural features, master the use and maintenance methods, and make good use of the pump set, we have compiled this manual for the reference of the set operators.

The application scene of the mobile drainage pump truck is not restricted by various environments and industries. It was born for emergency emergency pumping and drainage. Regardless of the rainy and dry seasons, regardless of municipal agriculture, as long as you have the need for pumping and drainage, the mobile pump truck can Playing a role in it, its use value is actually far beyond our imagination.

The mobile pump truck uses a diesel engine to coaxially drive a water pump, so that a disaster relief equipment can carry out the operations of transmitting electric energy and pumping water at the same time or separately. Aiming at the two operations of providing power and pumping water, which have a high application rate in emergency rescue and disaster relief, our company has adopted innovative methods to develop the world’s first dual-function integrated equipment for power generation and water pumping for emergency rescue and disaster relief, which effectively solves the problems frequently encountered in emergency rescue and disaster relief activities. Difficulty in entering, narrow working area, and multiple tasks in parallel.

The role of the mobile pump truck:

As an important supplement to fixed pumping stations, mobile pumping stations can be used in flood control and drainage, drought and seedling protection, urban flood control, aquaculture, temporary water transfer, cofferdam pumping, industrial drainage, municipal drainage, etc. The mobile pumping station is a unit that combines the pump and the motor closely together for submersible operation. my country’s submersible pumps have undergone four stages of development. By the 1990s, the types, varieties, output and quality of the pumps were relatively stable. Because the submersible electric pump has the advantages of simple structure, convenient use, etc., and the continuous improvement of the power grid, it has been widely used. Submersible electric pumps only need outlet pipes, so welded steel pipes, rubber hoses and rubber hoses (similar to fire hoses) have certain applications.

The mobile pump station plays an important role in drought resistance and seedling protection. In the event of a drought, in remote areas without fixed pumping stations or when the flow of fixed pumping stations is insufficient, the unit fails or the water level is too low and fixed pumping stations cannot operate, the characteristics of mobile pumps’ strong mobility can be fully utilized to mobilize a large number of pumps in a short time Station to solve the drought. Drought resistance and seedling preservation generally take a long time to run, but the time requirement for reaching the job site is not high.

The mobile pump truck mainly relies on the rotation of the impeller to create a vacuum zone, and the inhaled liquid relies on the centrifugal force developed by the impeller to generate a large amount of pressure and a very fast speed. Stainless steel and other materials are available for selection. Private customization is also possible, and customers can design reasonably if they need it. The mobile pump truck inputs a part of the energy into the diversion shell and steps into the impeller of the next level. The pressure generated increases in proportion to the number of pumps, and then passes through the water pipe pump base to reach the pipeline program on the construction ground. Based on scientific design thinking and technical improvement in long-term practical operation, the mobile pump truck will enhance its image as a smart and practical new pump truck in terms of the entire water displacement treatment.

The design of the mobile pump truck can highlight the integration of cutting-edge science and the combined control of various systems, reducing the weight of the entire mobile pump truck, eliminating the heavy and rough image of the previous water pump, and reducing the input of operators. , It is also convenient for multiple transportation, long-distance transmission is no longer a problem and ensures timeliness, but its own emission performance will increase without decreasing, and the displacement that can be handled has increased, while the pump truck itself has reduced the size of the traditional pump truck. Ten times as much in weight. The construction personnel can easily make up for the more tragic losses caused by the mobile pump truck before the floods rage.

Mobile pump trucks are generally divided into diesel engine mobile pump trucks, submersible mobile pump trucks, box-type mobile pump trucks, cable car-type mobile pump trucks, strong self-priming sewage mobile pump trucks, mobile irrigation pump trucks, etc., mobile pump trucks are used It is a split-cooled engine, which has the characteristics of low energy consumption, long life, easy maintenance, and low failure rate. It can be used in various harsh environments and work around the clock. It is widely used in flood control and drainage, drought resistance and seedling protection, urban flood control, aquaculture, temporary water transfer, industrial drainage, municipal drainage, septic tank pumping, etc.

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.
Diesel engine fire pump unit is a kind of pump equipment that is widely used in fire protection, and it is more suitable for mobile work in fire pumps. In fact, it is driven by a diesel engine connected to the pump head of the fire pump. Compared with motor drive, it can be used in the field, mines, and places lacking power supply. It is also called a diesel engine pump or a diesel engine fire pump unit.

As a fixed firefighting equipment, diesel engine fire pump has been widely used in firefighting and shunting, especially when there is no power supply or power supply (main power supply).
Diesel engine fire pumps can also be equipped with other diesel engines as power engines according to the needs of users. It is mainly composed of diesel engine, fire pump, connection device, fuel tank, radiator, battery, intelligent automatic control panel, etc. The whole crankshaft of diesel engine fire pump has high rigidity, high strength and high torque transmission efficiency. It adopts international advanced technology and gantry blocks, sliding bearings, plate-fin coolers, upper heat exchangers, rotary oil filters, and double cooling systems. The performance of the diesel engine fire pump is superior, the smoke and noise indicators reach the national level, and the fuel consumption is lower than the national standard by more than 2.1g/kw.h.

The main advantage of the hand-held diesel fire pump is the high lift, which can reach 90 meters. It is generally used for fire emergency fire prevention, forest emergency fire prevention, and factory fire protection. When the diesel engine fire pump is working, the auxiliary impeller is together with the pump main shaft Rotating, the liquid in the auxiliary impeller will also rotate together, and the rotating liquid will generate an outward centrifugal force. On the one hand, this centrifugal force resists the liquid flowing to the mechanical seal, reducing the pressure at the mechanical seal. On the other hand, it prevents the solid particles in the medium from entering the friction pair of the diesel engine fire pump seal, reduces the wear of the mechanical seal grinding block, and prolongs its life. The auxiliary impeller of the diesel engine fire pump can not only play a sealing role, but also reduce the axial force. In the diesel engine fire pump, the axial force is mainly caused by the pressure difference force of the liquid acting on the impeller and the gravity of the entire rotating part. The direction of action of these two forces is the same, and the resultant force is formed by the addition of the two forces.

The diesel engine fire pump has the characteristics of good starting characteristics, strong overload capacity, compact and reasonable structure, convenient maintenance, simple and reliable use, etc. The unit is equipped with protection functions such as overspeed, low oil pressure, three start failures, high water temperature, low oil level, and low battery voltage. Diesel engine fire pump is composed of diesel engine, chassis, cooling water tank and fan, high elastic coupling, water pump, diesel tank and control panel and other equipment. The diesel engine fire pump is directly connected with the diesel engine through a highly elastic coupling or a diaphragm coupling, and is installed on a common channel steel chassis.

The role of diesel engine fire pump group
Fixed fire water supply equipment can use fire pumps driven by electric motors, or fire pumps driven by diesel engines. The international standard name of diesel engine fire pump set is “engineering diesel engine fire pump set”. It uses diesel engine as power to drive fire water pump, and outputs pressurized water or air foam mixture for fire extinguishing work.
When dual power supplies are required or in order to further improve reliability, fire water supply equipment often adopts fire pumps driven by diesel engines. After the various components of the diesel engine fire pump set have passed the strict certification test and passed the test, their reliability is much higher than that of the electric motor fire pump set.

XBD, XBC electric fire pump units and diesel engine fire pump units meet the national standards GB6245-1998 “Fire Pump Performance Requirements and Test Methods”, GB/T1147-1987 “General Technical Conditions for Internal Combustion Engines”. They can be equipped with ISG, IS, S, D and other pump types respectively, forming various structural types such as pipeline type, vertical multi-stage, horizontal single-stage cantilever type, horizontal split, horizontal multi-stage, etc., to be suitable for various working conditions Use under different conditions (different power, different speed, different materials, etc.).

XBD and XBC units are mainly suitable for fire protection engineering of steel, metallurgy, electric power, petroleum, chemical industry, construction, port and other operations, emergency water supply for blast furnace, continuous casting, converter and other accidents, power plant emergency water supply for power failure, nuclear reactor safety protection cooling water supply, And other water supply projects that require automatic control.

Trailer-type mobile pump truck is also called mobile self-priming drainage pump station, and can also be referred to as mobile pump truck, pump truck, mobile pump unit, mobile pump station, etc. Trailer-type mobile pump truck is a kind of mobile pump truck developed by our company. A self-priming pump driven by a diesel engine is a pumping device with strong self-priming capability.
The trailer-type mobile pump truck adopts the axial return and external mixing type, and through the unique design of the pump body and impeller flow channel, it can not only need to install a bottom valve and irrigation water like a general self-priming clean water pump, but also can suck and discharge large solids And long-fiber impurity liquid, widely used in flood control and drought relief, municipal sewage discharge, emergency drainage and other fields.

The mobile diesel engine drainage pump truck can quickly and flexibly arrive at the application site, transport the urgently needed water to the destination in a short time, or pump and drain the accumulated water on urban roads or airports in a short time in an emergency to achieve flood control and disaster relief The purpose of protecting the safety of people’s life and property.

Diesel engine fire pump unit is a kind of pump equipment that is widely used in fire protection, and it is more suitable for mobile work in fire pumps. In fact, it is driven by a diesel engine connected to the pump head of the fire pump. Compared with motor drive, it can be used in the field, mines, and places lacking power supply. It is also called a diesel engine pump or a diesel engine fire pump unit.

The biggest difference between diesel engine fire pump and electric water pump is that it has its own independent power supply system – battery. Therefore, the start and operation of diesel engine fire pump will not completely depend on city power.

The diesel engine fire pump is usually used as a backup facility, so it will only start automatically when the fire signal comes, and when the electric water pump fails or the power supply is cut off. When it has a device for starting the pump at ultra-low pressure, its matching electric water pump control cabinet should also have a device for starting the pump at ultra-low pressure, and the lower limit of the two pumps should have a certain pressure difference.

Now the general diesel engine fire pump set is powered by imported or domestic Cummins, Wuxi Power Engine Factory and other diesel engines produced by large-scale key enterprises in the internal combustion engine industry at home and abroad, through highly elastic couplings or diaphragm couplings produced by professional manufacturers. The engine is directly connected with the water pump, and the power of the diesel engine can reach 880KW. It can be equipped with water pumps of different lifts and flow rates for customers to choose and use according to different needs.

The diesel engine fire pump set has the characteristics of good starting characteristics, strong overload capacity, compact and reasonable structure, convenient maintenance, simple and reliable use, etc. The unit is equipped with protection functions such as overspeed, low oil pressure, three start failures, high water temperature, low oil level, and low battery voltage. At the same time, it can be connected with the customer’s automatic fire alarm device or the fire control system control cabinet produced by our factory to realize the function of remote monitoring.

Fire pumps are used in the equipment of the fire protection system. Their function is to increase the pressure to supplement the water source, so as to achieve the purpose of extinguishing the fire. Moreover, the equipment adopts high-tech means and introduces advanced technology, which has incomparable advantages over other products.

Generally speaking, we recommend that where natural ventilation is used to install diesel engine fire pumps, there must be vents and exhaust ports of sufficient size, and the position of the vents ensures that there is enough fresh air to supply the diesel engine for combustion within the temperature limit. Of course, the water supply radiator can also be used to take away the heat of the circulating cooling water and the heat emitted from the surface of the unit. If the space cannot meet the requirements of natural ventilation and cannot effectively dissipate heat, it is recommended that you adopt forced ventilation, install an intake fan and an exhaust fan at the vent, and choose a location that can provide enough cold air for the diesel engine and take away the machine room hot air inside. Generally speaking, the air intake of the unit should be 6-7 times that of the diesel engine. Only in this way can normal ventilation be ensured and the operating efficiency of the equipment can be improved.

In addition, it must be fixed firmly so that the entire unit can be supported to ensure that the unit is in a horizontal state and absorb vibration. Generally speaking, the foundation of the unit adopts a concrete structure. The length and width are 150-250mm on one side of the length and width of the unit chassis, and the depth is 300-600mm. The height of the anchor bolts should be about twice the bolt diameter. And there should be a 750mm channel on both sides and front of the unit to facilitate the operator’s inspection and general maintenance.

The advantage of the diesel engine fire pump is that when a fire breaks out, the power supply fails, and the electric fire pump set cannot be put into use normally, the diesel engine fire pump set can be put into operation automatically to ensure the normal fire fighting. Compared with the electric fire pump set, the second advantage is that it does not need long-term investment in power supply, saving the mains power supply transformer and normal expenses. Diesel engine fire pumps are equipped with various automatic functions to meet customer requirements, ensure long-term normal standby status of the equipment, and put it into fire fighting work at any time.
The diesel engine fire pump set is also suitable for various emergency backup pump occasions.

The biggest difference between a diesel engine fire pump and an electric water pump is that it has its own independent power supply system—the battery. Therefore, the start-up and operation of the diesel engine fire pump can be completely separated from the mains.

The diesel engine fire pump is usually used as a backup facility, and it will only start automatically when the electric water pump fails or the power is cut off when the fire signal comes. When equipped with an ultra-low pressure pump starting device, the matching electric pump control cabinet should also be equipped with an ultra-low pressure pump starting device, and the lower limit of pump starting should have a certain pressure difference. Of course, it is also possible to design a control system that is more suitable for customer needs according to customer requirements.

Diesel engine fire pump has the advantages of light weight, small size, flexible movement, fast start, fast water discharge time, large fuel tank capacity, corrosion resistance, reliable use, convenient maintenance, fast automatic start, self-starting, and can be refueled after dry operation . Heavy-duty pump bearings last longer; other components are made of high-quality copper and stainless steel or customer. Diesel engine fire pump high efficiency open impeller design can handle large solids and abrasives while maintaining high flow rates and high volume air handling for use in more “well point dewatering projects”.

Diesel engine fire pumps are relatively common in life, and their performance requirements are relatively high. In normal use, more attention must be paid to maintenance to prolong the service life of the pump. Because diesel fire pumps are not omnipotent, there will be some problems in daily use, so when choosing equipment, we must pay attention to whether the quality of the equipment has reached the national standard. As fire equipment, all kinds of equipment must be Ensure performance, avoid affecting use in disasters and delay rescue.

The diesel engine fire pump has automatic, manual and fault self-inspection functions. It can monitor the working status of the whole process, restore the fault start, automatic pre-lubrication and preheating automatic restart function, and make the equipment start safer and more reliable. It has the functions of central control room remote control, remote transmission control and field bus connection. The battery is fully automatic floating charging (constant current, constant voltage, trickle charging) mode to ensure that the battery is in a standby state at any time. The diesel engine fire pump is easy to use, equipped with remote transmission meters and meters, which can be connected to the control center as needed, easy to install and use, and easy to maintain.

Diesel engine fire pumps are very versatile and play a very important role in fire protection. Using it can also solve many problems that we could not solve before, and it has brought great help to firefighters. It saves time and effort. efficiency.

Diesel engine fire pump has high efficiency, long operating life and high reliability. It can be used in independent fire water supply system, some can be used in fire protection and domestic common water supply system, and it can also be used in construction, municipal, industrial and mining, water supply and drainage, ships, field operations, etc.