The reason for the turbulence of the pump
Mainly have the following ends: electric rotor unfair balance; coupling joint is not good; bearing wear buckling; rotating part of the loose parts, cracks; pipe support is not strong and so on. Do not take the debugging, repair, reinforcement, straightening, change and other methods of disposal. The above-mentioned things are the common cause of the failure of the pump, not all reasons, the practice of dealing with failure, due to actual analysis, should follow the principle of the first outside.
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Safety Measures of Sewage Pump
When we choose and use the sewage pump before the need to choose according to the actual situation and the corresponding treatment, the general life of our sewage and waste water has its own different characteristics, so we need to choose the appropriate time to choose the sewage pump. There are a lot of sewage and waste water containing a large number of corrosive substances, When the sewage is used to enhance the operation of the sewage pump should choose to ch
oose anti-corrosion materials such as stainless steel. Diving sewage pump is one of them, when we use the submersible sewage pump should be installed when the leakage device, but also need to set Overheating or overloaded devices, which are important for the safety of the operation, as well as the installation of a sealed leak monitoring device so that the corresponding treatment can be made in a timely manner when the submersible pump is leaking
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Sewage pump submersible sewage pump flood season selection and standby
Sewage pumps are mainly sold in three time periods. This has a certain relationship with the seasonal changes, north and south differences are also great. Spring flood season, summer flood season and autumn flood season.
Spring floods generally due to the temperature rise, snow, frozen and formed the flood season. Water content and more sediment content, mainly concentrated in the northeast and northwest cold areas, time in April – May. Then the general water pump manufacturers will choose 2 – 3 months stocking, 3 – May sales season. Sewage pump mainly to the river, tributaries, outdoor sewage pump more.
At the same time sewage treatment plant should also be timely repair replacement products to prevent spring and summer came to have a policy. Kay sewage pump for the main products are, electric pump and diesel pump two. Electric pump, mainly ZW and ZWL self-priming sewage pump more. Applicable to where electric power can be reached. XBC-Z-type self-priming non-clogging diesel engine sewage pump, XBC-ZW trailer diesel engine self-priming sewage pump, XBC-silent, outdoor mobile diesel pump, XBC-ZW single cylinder diesel engine self-priming Pump, XBC-trailer diesel engine, XBC-ZW diesel engine self-priming pump. Are mostly self-priming sewage pump, diesel engine as the power source. In order to facilitate the movement, but also improved the trailer and mobile transport. Greatly facilitates the users
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How to effectively reduce the pump energy consumption
First, the internal surface of the pump and the pressure chamber (also known as the volute) inner surface corrosion uneven. Surface rust will reduce the pump water 7% -8%; maintenance only need to use steel brush and iron sandpaper or grinding wheel smooth, you can make it in the work of the fuel consumption or power consumption reduced by 9% -14%.
Second, the seal ring gap increases. According to the test, when the impeller radius in the direction of the gap increased by 4 mm, the pump will be reduced by 10%; maintenance only need to use organic adhesive plus asbestos to restore the provisions of the gap, you can make the pump at work fuel consumption or Power consumption by 10% -12%.
Third, the pressure chamber and the impeller axis does not coincide. According to the test, when the pressure chamber and the impeller axis deviation of 2 mm or skew angle greater than 2 degrees, the pump water will be reduced by 5% -6%; maintenance, just careful measurement, carefully identify the axis coincidence position, You can make the pump at work when the oil or power consumption reduced by 6% -7%.
Fourth, the blade installation angle is inconsistent. When the blade installation angle is inconsistent, the pump will be reduced by 5%; maintenance, the use of angle scale, the installation of fixed position, you can make the pump at work fuel consumption or power consumption reduced by 5% -6%.
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The main reason of stainless steel submersible pump suddenly does not run
1. Power supply, switch fuse fuse or three-phase protection switch trip;
2.Dirt blocked the pump impeller stuck;
3.The motor stator winding burned bad. Generally caused by the motor burned in addition to the motor itself caused by burning, but also due to motor water or overload caused by burning around the circumference.
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Submersible pump: water pump vibration and noise control
1.Should use low noise water pump.
2.The pump unit should be set vibration device, the base should be installed under the rubber vibration pad, rubber vibration isolator, rubber shock absorber, spring shock absorber and so on. Refer to “Water Pump Vibration Isolation and Installation Atlas” SS657.3. In the water pump suction pipe and outlet pipe, should be set vibration device, such as flexible rubber joints.
4.Pipe stents and pipes through the wall, wear floor, should take anti-solid sound measures, such as the pump room with flexible hanger, elastic bracket or in the wall through the pipe and hole between the glass fiber.
5.If necessary, can be taken on the building sound insulation and sound absorption measures, such as the pump room with double glass doors and windows, walls, ceiling installation of porous sound-absorbing panels.
6.The basis of vibration isolation, pipe vibration isolation and vibration isolation vibration isolation area of the number of layers, the number and number of flexible joints must be calculated.
7.Fire special pump.
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Performance requirements for stainless steel deep well pumps
The submersible pump is a widely used tool of drainage, the medium can be classified into water submersible pump, submersible pump and water submersible sewage pump three, from the installation method, generally divided into vertical, inclined and horizontal three, widely used in production and life in general there are 304 stainless steel deep well pump, 316 stainless steel pump, high flow and high lift submersible pump, large flow and low lift submersible pump etc..
Different application areas for submersible pumps are different, but generally speaking, stainless steel deep well pump in the performance of universal standards. Stainless steel deep well pump to run continuously for a long time, this requires that the design parameters of the pump, the design of suitable flow and lift, and ensure the pump impeller does not produce gas turbidity in various operating conditions, to ensure the pump abnormal vibrations in any operating conditions. The general water pump to work continuously, so the pipe pressure is very large, sometimes may be deformation, thrust and torque which requires the supplier to provide the power plant pipeline of pump interface allowed tolerance range.
With the development of industry, more and more modern city construction, the requirements of these materials is taller than before, in the selection of submersible pump should pay attention to the performance requirements of stainless steel pump, fully understand in order to achieve high efficiency, improve production speed and quality of life.
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The main use of submersible pumps
What do you know about submersible pumps? If you are constantly concerned about the news of our website, I believe there are many friends are not unfamiliar, today we will introduce the main use of submersible pump! Hope we do more understanding, to bring you the convenience of life. The use of the following:
1.Vertical use, such as in the general wells;
2.Inclined use, such as in the mine slope of the road;
3.Horizontal use, such as in the pool to use.
Our company is a well-known company specializing in the production of various types of submersible pumps, we have high-quality products and first-class service! We warmly welcome all the friends to discuss cooperation to achieve win-win development.
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Removal of sewage pump rust
If Sewage pump placed for a long, it will be very prone to rust, and will impact our normal use. Nanjing Forever Sewage Treatment Equipments Co., LTD. tells you some tips about removing sewage pump rust:
1.If don’t not use in a long time, release water in the sewage pump cavity, and dry pump chamber with a dry cloth. If the inside of the pump chamber is not dry, the pump chamber will rust for a long time.
2.Artificial remove rust will be the least cost with most provincial insurance. We can use our own tools to get rid of the rust, we man-made remove rust, do not need to use other chemical products so that can save some costs. Why is it insurance? Because if use chemical to remove rust, pump cavity will be more or less damaged.
3.Derusting with rust remover: This measure can remove rust completely but pump chamber will be damaged.
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The minimum submerged depth of pump
The minimum submerged depth of pump is to ensure the normal operation of the pump necessary conditions, the manufacturer’s samples are marked with clear data, forever pump pointed out that the data is calculated based on:
1. According to the calculation of the pump NPSH to ensure that the pump does not cavitation.
2. For the submersible pump in the upper part of the motor, if the motor cooling circulation system is not installed, the whole motor is immersed in the water to cool the motor stator.
3. The minimum submergence depth is to ensure that the pump is running, the suction pool water does not occur whirlpool, the air is not involved in the pump inlet, and to ensure uniform distribution of the liquid into the pump speed.
Moreover, the permanent pump plant found that some pumping stations due to flow and suction pool conditions, the pump running after the water level changes greatly, the suction pool water level drops, resulting in the actual submerged depth below the minimum submergence depth, resulting in the pump can not run properly, Cavitation occurred. Such as a pump station, suction pool minimum water level elevation of 1m, up to 4.5m, water depth difference of 3.5m. If the pumping station is designed according to 1m elevation, the whole pumping station will be dug deeply. Raising the elevation design will cause the submerged depth to be less than the minimum submerged depth.
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