Fire pump experts are improving and perfecting the previously used fire pumps. New fire pumps have begun to come into people's sight, and now they have become a very common fire pump. Then you should pay more attention to some aspects when using this kind of fire pump, because there are many functions added to this kind of fire pump, so it may not be compatible with other equipment, and of course there will be some big and small problems. When using fire pumps, many people report that this kind of fire pump often consumes too much power, so what should be done when this phenomenon occurs, let’s take a look at the two possible reasons below.

1. The impeller is faulty

When the XBD fire pump consumes too much power, one of the things that should be considered is that the impeller is faulty, which must be considered first. This kind of failure may occur when the rotation direction of the impeller is incorrect, then the rotation direction of the impeller should be corrected before working. In addition, if the impeller is damaged, then the impeller with bad track should be replaced in this case.

2. Defects in rotating parts

Another reason for excessive power consumption when using an XBD fire pump is that there may be a big problem with the rotating parts. However, when the rotating parts are seized, the power consumption will be too large, so these should check whether the internal wear of the rotating parts is normal. It can also be that the rotating bearing is bent, then the shaft should be corrected or replaced directly.


The inlet medium of the fire pump is insufficient or the water inlet pressure is not enough, or the water inlet pipe of the fire pump is blocked, or the air in the fire pump cavity is not exhausted. When the fire pump is idling, the impeller has no contact or little contact with the medium, so it cannot work effectively, and the liquid cannot be delivered normally. These are all useless work. Because there is no effective work, the load on the motor is very small, and the current generated is also very small, so there will be no impact on the motor. The impact of idling on the fire pump is indeed fatal to the pump. Idling fire pumps are prone to cavitation, causing damage to the pump body and flow-through parts; idling fire pumps with mechanical seals or packing seals will not be lubricated by liquid, resulting in dry grinding and rapid damage; idling fire pumps Fire pump rotor parts and pump body heat up, without liquid cooling, those narrow gaps (such as sealing rings) are easily seized by the action of heat expansion and contraction; the balance plate of an idling multi-stage fire pump is not lubricated by water, and the balance plate Will be burnt and damaged very quickly.

For early warning and maintenance of fire pump idling, it is recommended to improve the design of fire pump:

1. Treat each clearance position of the fire pump and expand it under permissible conditions to prevent seizure;

2. Carry out special process treatment, quenching and tempering, heat treatment, etc. on the shaft of the fire pump to increase the hardness and use low-flexibility materials to prevent it from being seized by large swings during idling;

3. Use mechanical seals and packing chambers that do not need to be lubricated by liquid media;

4. Choose closed self-lubricating bearings without oiling.

Compared with other fire pumps, the pump cavity of the horizontal self-priming fire pump has a larger space, and there is a place where water can be stored. Before the self-priming fire pump works normally, the cavity should be filled with liquid, and there is a period of self-priming before operation. During this period, the air is continuously discharged out of the pump body. This period is partly idling.

Regular maintenance and maintenance are indispensable for any mechanical equipment, so as to better account for the good operation of the equipment and promote the equipment to have a longer service life, and the fire pump equipment is no exception. zjbetter recommends that you read the manual provided by the manufacturer if conditions permit before overhaul and maintenance, which can better promote the maintenance of the equipment. The following are related precautions for fire pump maintenance introduced by zjbetter.

When dismantling:
1. When removing the thrust bearing, record the clearance of the balance disc;
2. When disassembling the multi-stage pump, the parts can be marked in sequence for better reassembly;
3. When disassembling, pay attention to avoid bumping and damaging parts, and ensure that parts are in good condition.
Parts maintenance:
1. Check whether the surface of each part is normal and intact, without bumps, scratches, rust, etc.;
2. Use measuring tools to measure whether the tolerance of some key matching parts is qualified;
3. Measure the clearances of the impeller seal ring, guide vane seal ring, and interstage bushing housing seal ring. If the gap is not within the allowable range and the wear is serious, it needs to be replaced;
4. Check whether the bearings, sealing rings and gaskets are in good condition and need to be replaced;

Reloading:
1. Install the rotor first, and conduct a dynamic balance test;
2. When reassembling, measure the gap at each sealing ring again to ensure that it is correct;
3. Before installing the balance disc, the total string volume of the rotor needs to be measured;
4. After installing the balance plate, measure the rotor half string volume.
6. Fasten all bolts;
7. Suction a dial indicator on the shaft, and rotate the shaft to measure the balance disc. The tolerance is generally required to be less than 0.06;
8. When installing the thrust bearing, pay attention to adjusting the clearance of the balance disc, and use the adjusting ring in front of the fire pump bearing to adjust the clearance of the balance disc to the drawing requirements.

This problem, in short, is the selection of water pumps. The following are the relevant steps for you to choose water pumps from zjbetter. I hope they can help you choose water pumps and help you better. Choose the water pump that suits your project.

1. Confirm the use environment
First understand the environment in which the equipment is used, including temperature, humidity, air pressure, air corrosiveness, dustproof and waterproof requirements, and the level of hazardous areas.
2. Confirm operating conditions
Refers to the liquid surface pressure (absolute) on the suction side of the liquid, the liquid surface pressure on the discharge side, intermittent or continuous work, fixed or mobile position, and the convenience of installation and maintenance.
3. Confirm the nature of the medium
Medium temperature, density, viscosity, saturated vapor pressure, solid particle diameter and content, gas content, corrosiveness, volatility, explosiveness, toxicity.
4. Select the material of the pump wetted parts
According to the physical and chemical properties of the pumped medium above, the material of the flow-passing parts is determined.
5. Determine performance parameters
The performance parameters of the water pump can be determined by calculation, analogy, test and other methods.
6. Determine the installation type
The installation of the pipeline is determined by the layout of the pipeline and the installation site, and there are direct connection, vertical and other types.
8. Determine the number of pumps
In general, spare pumps, especially fire pumps, are set up, and the number of pumps is selected according to different situations.

Fire protection is very important to people's life, which is related to the safety of people's lives and properties. In order to ensure people's fire safety, the government not only has 119 fire alarms, but also has higher requirements for the fire fighting equipment systems of various units. A set of safe and qualified fire-fighting equipment can save people's lives in such critical moments as a fire. The fire pump is a kind of either use it or not, once it is used, its value is far beyond its own. So what fire pump equipment is the safest and most secure?

We all know that when a fire occurs, various situations may occur, the circuit may be damaged, and the equipment may malfunction temporarily. In order to deal with these unexpected factors, fire pump manufacturer zjbetter has developed and produced a relatively safe and guaranteed The equipment, yes, is the fire pump unit.

The main feature of the fire pump set is that it has two kinds of power control, which are diesel engine and electric motor. The electric pump set is put into operation when the mains power is normal. When the power supply fails and the electric fire pump cannot be put into use normally, the diesel engine fire pump set will be put into operation automatically to ensure the supply of fire water. The diesel engine fire pump set can also be equipped with various automatic fire pumps. Function, meet the requirements of the standard, ensure the long-term normal standby state of the equipment, and put it into fire fighting work at any time. The two power supply methods are more reliable to ensure the fire water supply in case of fire emergency.

Zjbetter fire pumps have a wide range of applications, and are suitable for various fire hydrants, sprinkler fire main pumps, fire booster pumps, various villas, residential areas, industrial and civil buildings and other fire protection systems, as well as various oil depots, oil loading and unloading Ports, logistics parks and other places with high fire protection requirements.

The long shaft fire pump is the choice of many customers and plays an important role in people's fire safety. Of course, in order to better play its role, as well as better use and maintain the water pump, some precautions about the long-axis fire pump still need your attention.

Since the fire pump plays a very important role and is related to people's fire safety, when some problems occur during use, it must be paid attention to, so as not to delay the normal use of the fire pump, so that it cannot be started in time when a fire occurs, and the fire extinguishing time is delayed. . When a problem is found, it must be repaired immediately to eliminate the fault and ensure that the equipment is safe and effective before it is put into use, so as to better ensure people's fire safety.
The packing seal is an important part of the water pump. During the use of the fire pump, it is necessary to pay attention to the condition of the packing seal regularly and add it in time, otherwise it will affect the sealing performance of the water pump. Once the fire pump causes water leakage, it will directly affect the power consumption of the motor of the equipment, which will greatly increase the power consumption and damage the impeller of the equipment.
When the equipment generates strong vibration during operation, it is necessary to stop the operation of the equipment, check and repair the fire pump, and eliminate the problem, so as not to cause greater damage to the pump.
Secondly, the impeller is also a relatively important part in the water pump, and the condition of the impeller should be paid attention to regularly when the water pump is running. Regularly check whether there are cracks on the impeller of the water pump, and pay attention to the rust of the impeller. The cracks or rust of the impeller may cause damage and lead to the normal operation of the pump. In addition, in the daily maintenance of the fire pump, it is also necessary to pay attention to whether the fixing of the impeller is loose. At the same time, the mud needs to be repaired regularly to avoid blockage and affect the operation of the pump.
When using a long-axis vertical fire pump, there are still many things that need to be paid attention to. In order to better maintain the water pump and prolong its service life, daily professional maintenance is very important. Shanghai Xizhiquan is a professional fire pump manufacturer. The company produces a complete range of equipment, including fire booster and voltage regulator equipment, diesel engine fire pump sets, single-stage one-stage multi-stage fire pumps, fire control cabinets, etc. Since its establishment 19 years ago, the company has accumulated rich experience in pre-sales and after-sales, guaranteeing high-quality services for customers.

Fire protection system is a necessary equipment for all buildings, enterprises and public places. The performance of various types of models on the market is not the same, and different models are suitable for different scenarios. Fire pump manufacturer zjbetter shares with you what fire pump should be used for high-rise buildings.


First of all, the most basic requirement of high-rise fire-fighting equipment is the need for high lift, which has higher requirements on the carrying capacity and anti-overload capacity of the fire pump. zjbetter recommends the XBD-CDL fire pump produced by our company to you.

In terms of performance, zjbetter improves performance through continuous improvement. The special hydraulic design and structural design are adopted to make it have flow and pressure grading, which is more suitable for the selection of building fire-fighting water supply system than ordinary centrifugal clean water pumps, and the flow-pressure characteristic curve is flat and has no hump.

In the selection of friction parts, the company adopts corrosion-resistant, wear-resistant and anti-engaging materials. This equipment can be configured with dual water outlets, the pump body has a strong bearing capacity, and is more sensitive to start, which can start in a short time, saving more firefighting time.

The equipment has a wide range of applications and can transport medium without particles below 100°C, fire hydrant fire extinguishing systems, automatic sprinkler systems, production water supply systems and buildings, municipal government water supply and drainage in various enterprises and institutions, engineering construction, high-rise buildings, etc. .

zjbetter has certain research and development functions. The company has always focused on product research and development. 60% of the company's more than 400 employees are technicians. Among them, the company currently has 10 senior engineers and 15 engineers. condition. Every year, new products and technologies are born to promote the development of the fire fighting equipment market. Mutual benefit and win-win cooperation are the benchmarks for our tireless expansion of the market, and providing long-term technical support for our partners is the direction we abide by.