Fire pump bearings are one of the common parts in mechanical equipment all over the world. Of course, the common fire pumps outside also contain bearings, and they play a very important role. There is also a lot of professional knowledge about bearings. The following zjbetter will share with you about the fire pump rolling shaft.

Fire pumps are a type of pump used in fire protection. Compared with ordinary water pumps, fire pumps have higher standards and requirements in terms of sealing, corrosion resistance, and operating efficiency. Before the fire pump equipment runs, we need to discharge the gas in the water pump, do you know what is the meaning of this? The following is the answer from Shanghai Xizhiquan for you.


1. If there is gas in the fire pump, the equipment cannot form a sufficient vacuum during operation, resulting in the inability of the liquid to be sucked up. This phenomenon is called air binding, and many operators do not understand this operation often a phenomenon that would result.
2. By understanding the causes of qi binding, we will understand how to avoid this problem. Before starting the fire pump equipment, the pump casing needs to be filled with liquid. A check valve should be installed at the suction pipe of the pump, which can effectively prevent the liquid in the pump from flowing into the low-level tank due to gravity. If the pump is located at a low position, there is no need to prime the pump.
3. The compressed gas in the fire pump will occupy a certain space in the fire pump, making it impossible to seal.

Therefore, the deflation operation of the fire pump before it is put into use can increase the vacuum degree of the equipment and increase the pumping capacity of the pump, thereby effectively improving the efficiency of the equipment and reducing waste of resources.

As we all know, when a fire breaks out, the circuit is very prone to open circuit. When the fire fighting equipment relies on the power source as the power source, it cannot start the equipment, so it cannot play the role of fire fighting. At this time, the power source of the fire pump equipment is considered by people. a big problem. In fire fighting equipment, what power source is really reliable and guaranteed? Zjbetter, who has 19 years of experience in fire pump production, would like to introduce to you the following about our company's diesel engine fire pump set XBC-D equipment.

This set of fire pump set is a complete set of consumer water supply equipment composed of X6135, 4102, 12V135, 4105, 6102 series diesel engines as the power source, and equipped with diesel tanks, control panels, fans, cooling water tanks and other components.

The equipment has the characteristics of complete functions, stable performance, good starting characteristics, compact structure, strong overload capacity, easy operation and maintenance, automation, etc. It can be connected with automatic alarm device or fire center, and can also realize automatic start, automatic protection, automatic preheating, Automatic switching (diesel engine pump set, electric pump set) and other functions.

The pump station can be equipped with two power sources, diesel engine and electric motor. Generally, the electric pump is set as the main pump, and the diesel engine pump is set as the backup pump. It will start automatically when there is no power supply for firefighting. Among the two water intake methods of fire pump self-priming and suction, due to the requirements of fire protection regulations, the pump unit generally adopts the self-priming water diversion method. But it can also be changed according to user needs.

There are many types of fire-fighting equipment. Fire hydrants and fire extinguishers are the most common types. The other is the fire pump, which is the heart of the fire-fighting system and plays an important role in pressurizing and supplying water for the fire-fighting system. Among the numerous fire pump products, fire pumps can be divided into multi-stage and single-stage fire pumps.

The multi-stage pump has high efficiency, corrosion resistance, reliable operation and other performances. The pump body has strong bearing capacity, strong anti-overload ability, and relatively sensitive start-up. Below, Shanghai Xizhiquan Pump and Valve Co., Ltd. will introduce you to the relevant characteristics of multi-stage pumps. First of all, Shanghai Xizhiquan multistage pump has the characteristics of compact structure, the distance between parts is small, and the volume is small. The operation of the equipment is stable, the service life is long, and the vibration generated during operation is small, so the practical life of the equipment is relatively long.

With its unique structure, the direction of the water inlet and outlet can be adjusted according to different needs, so it is suitable for various places and environments. Moreover, the direction of the water inlet and outlet is horizontal, and the bending of the pipeline is reduced in the connection of the pipeline, thereby simplifying the connection of the pipeline and greatly enhancing the efficiency of the fire protection system.

The efficient operation efficiency of multi-stage pumps has been applied in many larger places with higher fire protection requirements. Its function is mainly to pressurize and send water to the fire-fighting pipeline system. The multi-stage pump is not only suitable for various fire-fighting systems, but also can be used for industrial drainage, pressurized water supply for domestic water in high-rise buildings, long-distance water delivery, water cycle pressurization, etc. occasion.

Among the fire pipeline pumps, they can be divided into vertical fire pumps and horizontal fire pumps according to different installation methods. Many people have doubts about these two common pumps. What is the difference between the two? Shanghai Xizhiquan will explain the difference between horizontal and vertical for you.

Obviously, different installation methods have different floor space. The vertical pipeline pump is installed vertically, and the floor space is relatively small, and the vertical fire pump does not need to lay a foundation, while the horizontal fire pump needs a base.

According to the different structures of the two pumps, it can be concluded that the maintenance difficulty of the two types of fire pipeline pumps is also somewhat different. The maintenance of the vertical fire pump impeller needs to be removed from top to bottom, which is difficult to maintain; the horizontal fire pump only needs to remove the inlet pipe to repair the impeller, which is relatively simple.

Due to the different directions of the water inlet and outlet pipes, the vertical and horizontal pipe connection methods are also different. Since the vertical water pump is a bottom-up structure, while the horizontal fire pump is arranged longitudinally on the base, the motor of the vertical pump and the pump body are connected by sub-ports, while the horizontal pump requires The coupling is used to connect with the motor, and the horizontal pipeline pump needs regular alignment work.

How to install a diesel fire pump is more appropriate?
zjbetter engaged in the design, production and sales of fire pumps for more than a decade, during the service of a variety of companies, enterprises in all walks of life, especially like steel plants, chemical plants, or like hotels, hospitals, such high-rise building projects have been water supply projects, accumulated some experience details, today here to share with you.

That is the installation of diesel engine fire pumps. To run your equipment high efficiency but also save energy, the design and quality of the product itself is very important we all know by heart, but in fact there is an important factor is often easy to ignore, where the diesel engine installation is more appropriate. If the installation is not appropriate, the equipment in operation will be a major headache, vibration, noise, energy consumption, etc..
Diesel fire pumps are suitable for unattended emergency water supply fire fighting systems, with high automation, superior performance and complete protection functions. When a building or factory suddenly loses power and the electricity cannot be supplied, the diesel emergency water supply pump set can automatically start to supplement the pressure of the pipe network. So many customers in the purchase of fire pumps are to follow the principle of "one spare, one use", to electric fire pumps as the main, diesel fire pumps as a supplement. How to install a diesel fire pump?

Generally speaking, we recommend installing a diesel fire pump in a naturally ventilated place, with sufficient size of vents and exhausts, and with vents positioned to ensure sufficient fresh air supply for diesel combustion within the temperature limit. Of course it is also possible to use the water supply radiator to take away the heat from the circulating cooling water and to take away the heat emitted from the surface of the unit. If the space cannot meet the requirements of natural ventilation and cannot dissipate heat effectively, it is recommended that you adopt the method of forced ventilation by adding inlet fans and exhaust fans to the vents, the choice of which should be able to provide sufficient cool air for the diesel engine and at the same time take away the hot air in the engine room. Generally speaking, the air intake of the unit should be 6-7 times the air intake of the diesel engine, as long as this is the case, in order to ensure normal ventilation and improve the operating efficiency of the equipment.

There must also be fixed firmly, which can support the whole unit and ensure that the unit is in a horizontal state to absorb vibration. Generally speaking, the foundation of the unit is made of concrete structure, the length and width of which are 150-250mm on one side of the length and width dimensions of the chassis of the unit, and the depth is 300-600mm, and the height of the ground bolts extending out of the horizontal surface should be about 2 times of the diameter of the bolts. And there should be 750mm of access on both sides of the unit as well as in the front position for the operator's inspection and general maintenance.

The above is some of better's installation experience, I hope it can bring you some help, such as purchasing needs can be in the official website home page contact customer service consulting details.