In recent years, China's agricultural water pump substantial increase in social ownership, especially in submersible pumps, self-priming pumps as the representative of small agricultural pumps, due to low prices, easy to operate and so favored by the majority of users. However, due to the small number of manufacturers of pumps, technical strength varies greatly, resulting in poor quality products merits. Coupled with the operation, improper use and other factors, so that a large number of users had a new trouble, and even the economy there have been many losses. According to statistics, China's annual production of agricultural water pumps half the amount used to replace scrap products. Therefore, how to choose to a durable, satisfactory pump and how to extend the life of the pump has become a vast number of users are very concerned about.
First, the choice of standardized pumps
(A) What is the standardization of pumps
Standardized water pump is the state according to ISO requirements, development, implementation of the latest model of the pump. Its main features are small size, light weight, excellent performance, easy operation, long life, low energy consumption. It represents the current trend of the pump industry.
(B) how to choose the pump
Users choose the pump, it is best to the agricultural sector recognized point of sale, we must recognize the manufacturer. It is recommended to give priority to buy water-filled submersible pump, and see the brand and product quality certification. Do not buy the "three no" (that is, no manufacturer, no production date, no production license) products, otherwise there is a problem, the user will be helpless.
(C) choose what brand of water pump is good
As a user, due to the limitations of expertise, it is difficult to decide, the best way is to consult the pump experts. If it is no one consultation, may wish to consult some of the old pump users, especially those with their own conditions of use are similar, to buy these users trustworthy, reliable and more mature products, after all, a wise choice. At the same time, should be based on the local power supply to decide to use single-phase or three-phase pump.
Second, select the pump to meet the requirements of the lift
(A) of the pump head selection
The so-called lift is the required lift, but not the height of water, a clear choice for this pump is particularly important. Water pump lift is about 1.15 ~ 1.20 times the height of water. Such as a water source to the water at a vertical height of 20 meters, the required lift is about 23 to 24 meters. Select the pump should make the pump nameplate on the head and the desired head close to the best, this case, the pump the highest efficiency, the use will be more economical. But not necessarily require absolute equality, as long as the general deviation of not more than 20%, the pump can work in a more energy-saving circumstances.
(B) how much the nameplate lift is better
Select the nameplate lift is far less than the required head of a pump, often will not meet the wishes of the user, even to be able to draw Sheung Shui, the water will be small enough, or even become a useless "idle pump" . Whether to buy the pump head higher the better? In actual fact. High-lift pump for low head, there will be excessive flow, resulting in motor overload, if the long run, the motor temperature, winding insulation will gradually aging, or even burn the motor.
Third, select the appropriate flow pump
Pump flow, that is, out of water, generally should not be elected too large, otherwise, will increase the cost of buying pumps. Specific analysis should be specific issues, such as the user's own draft with self-priming pumps, flow should be selected as small as possible; such as the user with the submersible pump, you can choose the appropriate flow of some.
Fourth, the use should pay attention to several issues
Correctly master the use of the method is to extend the life of the pump to reduce the economic loss of important factors.
(A) for submersible pumps
Before the start should do some necessary checks: pump shaft rotation is normal, whether stuck phenomenon; impeller position is normal; cable and cable plugs for rupture, abrasion and break phenomenon. Operation should pay attention to observe the voltage changes, the general control of the rated voltage within ± 5% range. In addition, the location of the pump in the water is very important, should be selected in the water is abundant, no silt, good water quality, vertical suspension in the water, do not allow horizontal, so as to avoid mud or suspended solids blocked pump imports, and Resulting in a sharp drop in water or even pumping not to Sheung Shui.
(B) for the self-priming pump
Should be placed as far as possible in a well ventilated place to run, in order to facilitate rapid heat dissipation, reduce the motor temperature. Otherwise, a long time running, easy to burn the motor. Such as a farmer in the use of self-priming pump, because there is no cover removed in the motor plastic film, resulting in motor overheating, burned the coil. In addition, before starting, be sure to check the pump body of water, otherwise, not only affect the self-priming performance, and easy to burn the shaft seal components. Under normal circumstances, the pump should be 3 to 5 minutes after the start of water, or should immediately stop inspection.
(C) water pump maintenance
When the pump fails, do not disassemble yourself. Because of their demolition, one does not know where the fault caused by the blind disassembly of a pass; the second is no special tools and often damage the original intact parts. The best way is to have experience, the size of the maintenance point of repair, and the timely replacement of "overage" parts and some wearing parts. Under normal circumstances, the pump should be repaired once every six months, to eliminate the "disease" work.
(D) non-use of storage
In the non-use period, the pump should be promptly raised from the water, and emptying pump water, especially in the cold winter. And then placed in a dry place, conditional users can also be painted in the key parts of the butter, lubricating oil in the bearing to prevent corrosion of parts. In addition, the pump's non-use period, not the longer the better. If not used for a long time, not only easy to rust parts, but also reduce the pump life.
First, the choice of standardized pumps
(A) What is the standardization of pumps
Standardized water pump is the state according to ISO requirements, development, implementation of the latest model of the pump. Its main features are small size, light weight, excellent performance, easy operation, long life, low energy consumption. It represents the current trend of the pump industry.
(B) how to choose the pump
Users choose the pump, it is best to the agricultural sector recognized point of sale, we must recognize the manufacturer. It is recommended to give priority to buy water-filled submersible pump, and see the brand and product quality certification. Do not buy the "three no" (that is, no manufacturer, no production date, no production license) products, otherwise there is a problem, the user will be helpless.
(C) choose what brand of water pump is good
As a user, due to the limitations of expertise, it is difficult to decide, the best way is to consult the pump experts. If it is no one consultation, may wish to consult some of the old pump users, especially those with their own conditions of use are similar, to buy these users trustworthy, reliable and more mature products, after all, a wise choice. At the same time, should be based on the local power supply to decide to use single-phase or three-phase pump.
Second, select the pump to meet the requirements of the lift
(A) of the pump head selection
The so-called lift is the required lift, but not the height of water, a clear choice for this pump is particularly important. Water pump lift is about 1.15 ~ 1.20 times the height of water. Such as a water source to the water at a vertical height of 20 meters, the required lift is about 23 to 24 meters. Select the pump should make the pump nameplate on the head and the desired head close to the best, this case, the pump the highest efficiency, the use will be more economical. But not necessarily require absolute equality, as long as the general deviation of not more than 20%, the pump can work in a more energy-saving circumstances.
(B) how much the nameplate lift is better
Select the nameplate lift is far less than the required head of a pump, often will not meet the wishes of the user, even to be able to draw Sheung Shui, the water will be small enough, or even become a useless "idle pump" . Whether to buy the pump head higher the better? In actual fact. High-lift pump for low head, there will be excessive flow, resulting in motor overload, if the long run, the motor temperature, winding insulation will gradually aging, or even burn the motor.
Third, select the appropriate flow pump
Pump flow, that is, out of water, generally should not be elected too large, otherwise, will increase the cost of buying pumps. Specific analysis should be specific issues, such as the user's own draft with self-priming pumps, flow should be selected as small as possible; such as the user with the submersible pump, you can choose the appropriate flow of some.
Fourth, the use should pay attention to several issues
Correctly master the use of the method is to extend the life of the pump to reduce the economic loss of important factors.
(A) for submersible pumps
Before the start should do some necessary checks: pump shaft rotation is normal, whether stuck phenomenon; impeller position is normal; cable and cable plugs for rupture, abrasion and break phenomenon. Operation should pay attention to observe the voltage changes, the general control of the rated voltage within ± 5% range. In addition, the location of the pump in the water is very important, should be selected in the water is abundant, no silt, good water quality, vertical suspension in the water, do not allow horizontal, so as to avoid mud or suspended solids blocked pump imports, and Resulting in a sharp drop in water or even pumping not to Sheung Shui.
(B) for the self-priming pump
Should be placed as far as possible in a well ventilated place to run, in order to facilitate rapid heat dissipation, reduce the motor temperature. Otherwise, a long time running, easy to burn the motor. Such as a farmer in the use of self-priming pump, because there is no cover removed in the motor plastic film, resulting in motor overheating, burned the coil. In addition, before starting, be sure to check the pump body of water, otherwise, not only affect the self-priming performance, and easy to burn the shaft seal components. Under normal circumstances, the pump should be 3 to 5 minutes after the start of water, or should immediately stop inspection.
(C) water pump maintenance
When the pump fails, do not disassemble yourself. Because of their demolition, one does not know where the fault caused by the blind disassembly of a pass; the second is no special tools and often damage the original intact parts. The best way is to have experience, the size of the maintenance point of repair, and the timely replacement of "overage" parts and some wearing parts. Under normal circumstances, the pump should be repaired once every six months, to eliminate the "disease" work.
(D) non-use of storage
In the non-use period, the pump should be promptly raised from the water, and emptying pump water, especially in the cold winter. And then placed in a dry place, conditional users can also be painted in the key parts of the butter, lubricating oil in the bearing to prevent corrosion of parts. In addition, the pump's non-use period, not the longer the better. If not used for a long time, not only easy to rust parts, but also reduce the pump life.
Manufacturers recommend: Shenlong stainless steel fountain submersible pump
Keywords:Pump selection, use and attention to the problem, the standardization of pumps
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