Failure phenomenon

1, no response after power supply.

2, hard to start or can not be started, and accompanied by a "buzz" sound.

3, the motor can run, but the speed is slow, and the case of overheating, a burning smell.

4, the operation of noise, vibration.

[Methods]

1, most of the power plug, power supply and motor winding short circuit.

2, maintenance available small bamboo sheet according to the rotation direction of rapid shifting wind leaf, if the motor to work quickly, that is start capacitor is damaged or the start winding should be replaced the same capacity capacitor or repair the startup winding; if the motor card is, mechanical failure of the motor and pump head, such as the damage of bearing, impeller stuck.

3, mostly caused by short circuit of motor winding should be to open the motor, optic damage respectively adopts a welding, jumper, isolation, rewind and other measures to repair.

4, most of the bearing damage or bearing chassis and the mismatch, need to dismantle the motor to check, if the bearing is damaged should be replaced; if the bearing running round, the surface of the pump casing with the flower processing; if the bearing running in the circle, on the motor shaft wear parts of the flower processing, serious wear and tear of by first turning method for repair welding.

Stainless steel self - priming pump head

Failure phenomenon

1, the normal operation of the motor, but the amount of water is less or no water.

2, the shell is charged.

[Methods]

1, this situation should first check the pump seal, check should unplug the power plug, hand to block the water mouth, the pump filled with water, hold in the mouth of the export tried to blow in, observe whether the leakage of the pump head, leakage

Water is also the seal damage. Common fault location has a suction pad, pad outlet, impeller cover pad, repair should be replaced. If there is no water phenomenon, many of the impeller damage, water absorption chamber and the water chamber between the separation

Wear, pump head retaining septum removed, the impeller and the pump shell enlarge the gap, replace the impeller and the pump shell. Replace the impeller should pay attention to the thorough removal of the residual copper blades, so as not to damage the new impeller again.

2, the majority of water damage, water through the motor shaft infiltration of the motor the motor insulation deterioration caused by, can be used to replace the seal, drying, motor and other methods of repair. Need to pay attention to is, because the water pump and water contact and open air work, very easy to damp and cause insulation performance deterioration, in order to ensure the safety of the body, electric stainless steel pump should be reliable grounding.

Pump industry common problems are the following aspects:

First, there are some problems in the main performance indicators. Pump flow head up to less than the marked parameters, the efficiency is low, there is still a high standard, the phenomenon of chaos. Not in the standard way to label.

Two is the low efficiency of the pump efficiency, pump hydraulic model is flawed.

Three is the existence of security projects. In the security projects, the grounding measures and the unqualified phenomenon of the manual are concentrated, and the safety labeling does not conform to the requirements.

Four is the appearance of rough, casting quality.

Five is a single structure, single function, low technology content.

This product quality defects caused by the following reasons:

First, the technical condition is not complete, the equipment is backward, there is not enough processing and inspection equipment, the process method is not correct, the design document has the deviation, the inspection method is inaccurate, cannot discover the existence question, cannot take effective measure.

Two is not enough understanding, can not accurately understand the standard terms, can not strictly implement the standards. For example, cable length, safety warning signs, the use of safety instructions in the manual, these projects are often a number of small business problems, it seems very simple, but if the standard is not enough, it is easy to occur, and the nature is very serious, belonging to the security of the entire project is not qualified. So again called on everyone to strengthen learning, we must carefully grasp the contents of the standard, in particular, to pay attention to the provisions of safety standards. To avoid a temporary failure caused by the failure of the security project.

Three is the quality management means is backward, the quality consciousness is weak, the management measure is not in place, the method is not accurate, the management aspect flaw. For example, the inspection process, should give the supplier what requirements, qualified suppliers should be determined, we may only focus on the price of the product, largely ignored the technical quality requirements, we are all in use will not have any problems, its real, because we have a lot of quality problems, if it is not clear, can be used to support the establishment of a large number of supporting manufacturers to help establish a verification, inspection method.

Four there is a man-made counterfeit. In order to cater to the market demand, to increase the competitiveness and artificial. The main performance index is the flow head and pump efficiency, these parameters are the user's most concerned parameters, the general is also more attention, but why still exist many problems, the analysis, I

We believe that the main reason is that companies do not set the required labeling, that is to say, if the facts are marked, there will not be a large number of substandard phenomenon, some companies in order to a non normal competition, artificially inflated, deliberately put the flow and head high standards, resulting in the failure of these projects. These phenomena can be avoided completely, therefore, we must put an end to the phenomenon of the phenomenon of the future business activities.

Five is the enterprise design ability, innovation consciousness is not strong. Existing many products, it can be said that there is no technical content, is to mapping, imitation, processing and other means of production, product structure, product level is low, the function is single, reliability is not guaranteed, the lack of technical research and development capabilities.

A state-of-the-art water pump used to help clean up after devastating floods in Cumbria is to be given a permanent home in the county.

During the floods in January 2005, the pump was driven up to Carlisle from the Fire Service College in Gloucester.

Its first crucial task was to pump out a flooded electricity substation so power could be restored.

A demonstration of the high-volume device took place in Carlisle's Rickerby Park on Thursday lunchtime.

'Extreme fires'

The pump will now be based in Kendal with a trained crew to operate it.

It can also be used for conventional firefighting, and was deployed during the Buncefield oil depot explosion last year.

Councillor Geoff Hodgson, cabinet spokesman for Cumbria Fire and Rescue Service, said: "Cumbria's floods have been described as a one-in-250-year event, and everyone hopes nothing like it will happen again.

"But the addition of this equipment to the Cumbria fire and rescue armoury means we'll be better prepared if it does.

"It will also be crucial in extreme fires when huge volumes of water are needed in a short space of time."

In fact, a lot of time, we will find something to buy, although it is the same kind of thing but the price difference is very poor. A lot of people have such a doubt, in the end is because what causes the price of the centrifuge is different?

May be a lot of people are asked what caused the price of the centrifuge is different, the first reaction will be felt that the gap between imports and domestic. But the price difference between domestic and imported centrifuge is not great, because our country after these years of continuous development, the core technology of the centrifuge has been completely mastered. So now the same class of imported and domestic centrifuge centrifuge in the same price.

In fact, the main factor causing the price gap between the centrifuge is the configuration of the centrifuge and performance, just like we buy mobile phones, performance and configuration of the more expensive. Not to mention the centrifuge, the difference is generally poor in the host performance. Generally speaking, the more features, the price is also a lot more expensive, like some with the function of refrigeration and heating the price of the centrifuge is higher than the price of ordinary centrifuge without these functions.

Many kinds of industrial water pump, according to the principle can be divided into the following three categories:

1 vane pump

Vane type pump is also called power type pump, this pump is continuously to the liquid to apply energy, such as centrifugal pumps, mixed flow pump (oblique flow pump), axial flow pump, etc..

2.} volume type pump

In this kind of pump, the periodic change of the liquid volume is filled with the liquid volume, and the energy is not continuously applied to the liquid, such as piston pump, gear pump, screw pump, etc..

3 other types of pumps

These pumps have different functions, such as jet pumps, water hammer pumps, magnetic pumps, etc..