Stainless steel water pump features, uses, conditions of use

According to the Xiaobian understanding of stainless steel water pump is for the transmission of water and physical and chemical properties similar to other liquids used in water, for industrial and urban water supply and drainage, high-rise building pressurized water, garden irrigation, fire pressurization, long-distance transport, warm Through the refrigeration cycle, farmland irrigation, bathroom and other cold water cycle pressurization and equipment support.

Features of stainless steel water pump

1, excellent performance to a strong motor device and a reasonable body design efficient, low noise. Waterway parts with special treatment, not only is not easy to rust, and good wear resistance.

2, with the economy, practicality. Energy-efficient design and reasonable prices to help you improve your quality of life.

3, set / simple assembly, easy to use A new process design, making the assembly easy, easy maintenance. With self-priming function.

Stainless steel water pump features, uses, conditions of use

Stainless steel water pump use

1, suitable for garden irrigation, hotels, villas, high-level water supply and irrigation of farmland, excluding factories, mines, ships and other water.

2, suitable for small flow, high-lift, low-power occasions.

Conditions for use of stainless steel clean water pumps

1, suction is not greater than 9 meters.

2, the transmission medium: clear water [more clear river, lake, etc.]

3, the medium temperature is not higher than 80 ℃

4, the ambient temperature is not higher than 40 ℃

Manufacturers recommend: ShenLong stainless steel water pump
Keywords:Stainless steel water pump, characteristics, use, conditions of use

What are the structural features of stainless steel self-priming pump?

Stainless steel self-priming pump with stainless steel self-priming pump, explosion-proof self-priming pump with self-priming function, the pipeline does not need to install the bottom valve before work only to ensure that the pump has a quantitative drainage of the body can have a drainage, Suction "function. Thus simplifying the pipeline system, but also improve the working conditions.

Stainless steel self-priming pump is based on the user's requirements, CQ-based magnetic pump on the basis of the absorption of foreign latest technology, and after the company's technical staff repeated research and testing of new products, its performance reached the international advanced level of similar products. ZCQ self-priming magnetic drive pump to replace the static seal dynamic seal, the pump flow components in a completely sealed state, completely solve the other pump mechanical seal can not be avoided running, run, drip, drain the ills, the pump and the The components of the flow components are made of corrosion-resistant stainless steel, ceramic, PTFE graphite, carbon graphite, carbide and other materials, both CQ-type magnetic drive pump function, and set in a self-absorption, Cited irrigation, which means that pumping, easy and convenient.

The stainless steel self-priming pump adopts external mixing type axial return pump body structure. The pump body is composed of a suction chamber, a liquid storage chamber, a volute, a reflux hole, a gas-liquid separation chamber and the like. After the pump starts, under the action of the centrifugal force, the remaining liquid in the suction chamber and the air in the inlet line are stirred by the impeller into a gas unmixing mixture. The mixture enters the gas-liquid separation chamber through the volute, and as the speed slows down, Water separation, the air discharged from the pump outlet, the liquid back to the pump through the return hole, after repeated cycles, into the liquid pipeline in the air was drained to the pump to form a certain degree of vacuum to achieve the role of self-priming.

What are the structural features of stainless steel self-priming pump?

Structure

1, the pump by the pump, impeller, shaft, frame, motor and other components, the structure of precision mobile convenience.

2, the self-priming pump in the general installation conditions, the suction height of 3 meters, if in some situations need to further improve the suction height, then the installation should pay attention to the shorter suction tube as possible, the pump should try to avoid inhalation valves, Head and tee. The vertical height of the discharge pipe is within 1 meter, and the pump is not located in the middle of the pump outlet vertical 1 meter, then the maximum suction height of the pump can be obtained.

3, the pump body with gas and water separation chamber and out of the same, the water chamber and the return valve connected. Self-priming, the return valve is automatically open, the backflow valve body is facing the impeller cone-type nozzle, self-priming to help improve the self-priming speed.

4, between the water connector and the pump body with rubber valve, automatically shut down when stopped to keep the pump full of liquid for the next use of the liquid.

5, the bottom of the pump inlet, with a liquid discharge, twist open liquid cap, the pump that is able to put liquid material net.

6, the liquid inlet, inlet port are used rubber seals, sealed with a mechanical seal on the shaft.

Manufacturers recommend: Shenlong stainless steel water pump
Keywords:Stainless steel self-priming pump, structural features,

Classification and Characteristics of Stainless Steel Submersible Pump

Stainless steel submersible pump: As the name suggests, is made of 201 stainless steel, 304 stainless steel, 316L stainless steel and other materials used in finishing, stretching, welding and other different production process, the processing of the submersible pump has reached the pumping medium for the purpose of the pump, The market is widely used. Its characteristics are: beautiful appearance, low noise, no leakage, long service life, high performance, stable running characteristics, according to different application requirements, the advantages of its more prominent.

According to different pumping medium: stainless steel submersible pump can be divided into different sub-categories, pumping well water, fountains, water pressurized system water, etc., under normal circumstances choose SJ (P) stainless steel deep well pump is excellent High efficiency, high reliability, compact structure, low noise, long operating life, etc., and can meet the requirements of sanitary level at the same time. 316 material pump for corrosive liquid. According to the user's use of environmental requirements, QXF, SPS and other stainless steel pump is also a good choice.

Stainless steel sewage pump, also known as stainless steel submersible pumps, the main application and the environment is relatively poor, the media has a certain corrosive, and according to different media, such as: medium containing solid particles or fiber material, medium temperature is relatively high , And can be derived for the stainless steel cutting sewage pump, stainless steel stirrer sewage pump, stainless steel high temperature corrosion-resistant submersible pumps and other types. According to the different media, choose different types of stainless steel submersible pumps, the pump can play a maximum of excellent performance to meet the application conditions, so pump selection is particularly critical.

Classification and Characteristics of Stainless Steel Submersible Pump

Stainless steel submersible pump Features:

1, the pump and the liquid contact part of the stainless steel 316L or fluorine rubber material stainless steel submersible pump chemical composition - by the national authority of the department detected.

2, shell and impeller 316L stainless steel; bearing imported bearings; sealed with fluorine rubber; lubricating oil imported food grade lubricants; protector imported protector; mechanical seals imported double-faced fluorine rubber silicon carbide.

3, mechanical shaft seal with high-quality double-group mechanical seal, and fully equipped with fluorine rubber, SIC silicon carbide mechanical shaft seal; sealed with high-quality fluorine rubber seal. Using food-grade lubricants; do not pollute the water.

4, the motor insulation class H (180 ℃) of the dry induction motor, the use of fluorine rubber seal - excellent temperature resistance.

5, the configuration temperature controller or motor overload protector to effectively prevent the motor overload when burned.

6, acid PH value of 2 to 12.

7,316 L material hardness, wear resistance, long service life.
Manufacturers recommend: Shenlong stainless steel water pump
Keywords:Stainless steel submersible pumps, features, materials

QSP fountain pump selection error how to do?

QSP fountain pump selection and operating fault is wrong and may lead to oscillation or water spray may not be sprayed, these potential causes fountain pump oscillation is how to deal with it! QSP Fountain Pump Application Engineer will use the process of fountain pump problems are as follows!

Approach / process
QSP fountain pump selection and operating fault is wrong and may lead to oscillation or water spray may not be sprayed, these potential causes fountain pump oscillation is how to deal with it! QSP Fountain Pump Application engineers will use the process of fountain pump problem solution is as follows:

The first two pumps should be pumped in parallel to ensure the same function. Pump function curve should be slow down type is good, can not have a hump.

The second step: to eliminate the QSP fountain pump overload factors, such as flow obstruction; appropriate extension of the pump start time to reduce the disturbance on the drive shaft to reduce the rolling parts and stop the parts between the bumps and conflicts, and thus Caused by the thermal deformation; sliding bearings on the water, the process should be added enough pre-smooth water, to avoid dry start, until the water pump and then stop irrigation.

The third step: regular oiling to the needs of the oil filling the bearing, on the long axis of liquid centrifugal pump, the shaft system there is a change in oscillation, if the use of a thrust tile, the main thrust is damaged tile, then the appropriate progress Smooth oil viscosity, to avoid the liquid dynamic pressure smooth film damage.

The fourth step: QSP fountain pump In order to avoid the fountain pump amplitude is too large, but also can use the analysis of vibration analysis to determine the best operating parameters of the pump. QSP fountain pump its reasonable structure, beautiful shape, very reliable, to adapt to frequent launch and frequency operation needs, and the installation of facilities, pollution-free water meet the green environmental protection needs, become a favorite user of goods, fountain pump is an essential thing .
Manufacturers recommend: ShenLong stainless steel fountain pump

Fountain pump head simple estimate method

HVAC pump selection: usually selected than the number of ns in the 130 ~ 150 centrifugal water pump, water pump flow should be 1.1 to 1.2 times the additional flow of chillers (single take 1.1, the two parallel take 1.2 according to the budget Can be taken roughly every 100 meters along the length of the loss of 5mH2O, pump head (mH2O):

Hmax =△ P1 +△ P2 + 0.05L (1 + K)

△ P1 is the water pressure drop of the chiller evaporator.

△ P2 is the water pressure drop of one of the air-conditioning end devices connected in parallel in the loop with the greatest loss of water pressure.

L is the tube length of the most adverse loop

K is the most unfavorable part of the loop resistance equivalent length and the sum of the total length and straight tube ratio, when the most adverse loop is longer K value of 0.2 to 0.3, the worst of the short loop when the K value of 0.4 to 0.6

----- Chilled water pump head useful budget method -----

What we are talking about here is the resistance of closed-circuit air-conditioning cold water systems, which are commonly used systems.

1. Chillers resistance: from the unit manufacturer supply, usually 60 ~ 100kPa.

2. Pipeline resistance: including friction resistance, part of the resistance, during which the friction resistance per unit length of friction than the Moroccan group depends on the technical and economic comparison. If the value of large diameter is small, the initial investment in the province, but the pump running energy consumption; if the value is small and vice versa. The current planning of the cold water pipe than the friction group should be controlled in the 150 ~ 200Pa / m range, larger diameter, the value can be smaller.

3. Air-conditioning end device resistance: the end of the type of equipment with fan coil units, modular air conditioners and so on. Their resistance is based on planning the air into and out of the air conditioning coil parameters, cooling capacity, water temperature, etc. by the manufacturer through the coil after the supply of equipment, a lot of additional conditions in the product samples can be found on the value. This resistance is usually in the range of 20 to 50 kPa.

4. Control valve resistance: air-conditioned room is always the need to control room temperature, air conditioning equipment through the end of the waterway to set the electric two-way control valve is a means of achieving room temperature control. Two-way valve by the valve when the standard fully open to the flow and the pressure drop to allow the selection. If this allows a large value of the pressure drop, the valve control function is good; if the value is small, the control function is poor. When the valve is fully open the pressure drop accounted for the percentage of the total pressure drop is called the valve weight. Water system planning requirements of valve power S> 0.3, so the two-way valve to allow pressure drop is usually not less than 40kPa.
Manufacturers recommend: ShenLong stainless steel fountain pump

How to view fountain pump motor damage?

Fountain pump is a special equipment for the fountain, according to the number of head can hit the water corresponding to the height, and then form a fountain. If the fountain pump motor damage will directly affect the use of pumps, then the fountain pump motor damage to how to view it?


Fountain pump motor damage View:

1, check the three-phase power supply is not balanced, such as balance, follow-up process.

2, check the overload protection setting current is not in line with the pump rated current demand, and recognition.

3, cut off the power and admit, loosen the pump installed in the leakage, overload switch box power cord.

4, open the net cover, toggle the impeller to see if it is stuck impeller, such as impeller rotation flexibility, the follow-up process.

5, with a range of 500 volts megohm gauge motor stator winding and cable insulation resistance to the ground, pump operation after submerged pump insulation resistance shall not be less than 50MΩ, and admitted. Such as exceeding 50MΩ, check the switch box overload protection device to set the current.

6, cold insulation resistance is less than 50MΩ, the pump should be removed from the underwater pipelines, put the surface, on dry and ventilated place, and wipe dry pump water.

7, check the pump cable, is not damaged, such as damage to the water from the cable breakage into the stator winding, causing the leakage trip, and recognition.

8, such as the cable is not missing, no damage, check pump external cable and pump own cable connection is not bandaged, is not based on my company's instructions in the way of dressing, tape is not reliable, and recognized.

9, loosen the pump cable and external cable, with a range of 500 volts Megohmmeter measurement of the stator winding insulation resistance of not less than 50MΩ, and recognized, such as less than 50MΩ, available scissors peeled cable pump leads l ~ 2m check to see if there is a drop, if the cable does not fit the needs of clarifying the cable from the convergence of water.
Manufacturers recommend: ShenLong stainless steel fountain pump
Keywords:Fountain pump, motor damage, view method

Fountain pump the basic structure

The basic structure of the fountain pump is composed of six parts are the impeller, pump, pump shaft, bearings, seal ring, stuffing box.

1, the impeller is the core of the fountain pump, it is much higher speed, the impeller blade plays a major role in impeller assembly through static balance before the experiment. The inner and outer surfaces of the impeller are required to be smooth to reduce the friction loss of the water flow.

2, the pump body, also known as pump shell, which is the main fountain pump. To play a role in supporting the fixed and installed with the bearing bracket connected.

3, the role of the pump shaft is connected by the coupling and the motor, the motor torque to the impeller, so it is the transmission of mechanical energy of the main components.

4, the bearing is set in the pump shaft to support the shaft of the components, there are two kinds of rolling bearings and plain bearings. Rolling bearings using butter as a lubricant to the appropriate general is 2/3 ~ 3/4 of the volume too much heat, too little noise and fever! Sliding bearings use a transparent oil as a lubricant, refueling to the oil level line. Too much oil to bleed along the pump shaft and drift cheap, too little bearing but also overheating caused by accident! In the process of running the pump bearing the highest temperature of 85 degrees in the general operation of 60 degrees, if the high is necessary to find out the reasons (whether impurities, oil is black, whether the water) and timely treatment!

5, sealing ring, also known as leakage ring. Impeller inlet and pump shell gap between the General Assembly caused by high pressure within the pump area through the gap to the low pressure area, affecting the pump out of water, reduce efficiency! The gap is too small will cause friction between the impeller and the pump casing wear. In order to increase the return resistance to reduce the internal leakage, delay the life of the impeller and pump shell, the pump shell and the impeller at the outer edge of the foreign aid with sealing ring, sealed gap maintained between 0.25 ~ 1.10mm is appropriate.

6, stuffing box mainly by the filler, water ring, packing tube, packing gland, water pipe composition. The role of stuffing box is mainly to close the gap between the pump shell and the pump shaft to prevent the flow of water does not flow to the outside nor to the outside air into the pump. Always keep the vacuum inside the pump! When the pump shaft and packing friction generated by the heat will depend on the water sealing tube to the water seal ring to fill the cooling! To maintain the normal operation of the pump. So the pump running the inspection process to check the stuffing box is particularly important to note! In the run about 600 hours to fill the filler to be replaced.
Manufacturers recommend: ShenLong stainless steel fountain pump

How to choose a fountain pump

Fountain pump is mainly used in fountains, is the fountain of power, is one of the important fountain equipment. Fountain pump quality and performance of the pump has a vital role.

Fountain pump to choose:

First, the standardization of fountain pumps:

1, the standardization of pumps Standard pump is the state in accordance with 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.

2, what brand of water pump as a user, due to the limitations of expertise, it is difficult to decide, the best way is to consult the water pump experts. If no one consultation, may wish to consult some of the old pump users, especially those with their own conditions of use are similar to those users to buy trustworthy, reliable quality 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, 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.

Third, select the appropriate flow pump, that is, the 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 select the appropriate flow of some.
Manufacturers recommend: ShenLong stainless steel fountain pump

Safety use of small submersible pump

Small submersible pump plays an important role in farm irrigation and farm domestic water. In order to avoid accidents happened in the usage process and extend service life, the following points should be noticed at usage:

Installation of leakage protector. Submersible pump is easy to leak electricity and cause electric energy loss or even cause electric shock accident. If leakage protector is installed, leakage protector will shut off the power of submersible pump once leakage amount exceeds a certain value (generally no more than 30 ma) to avoid waste of electricity and ensure the safety.

The cable should be overhead and power cord should not be too long when install submersible pump. Do not force the cable to avoid the fracture of power cord. Do not sink the submersible pump into the mud at operation, or it will lead to poor motor heat dissipation and motor winding burn. At installation, insulation resistance of motor should be no less than 0.5 M.

Avoid starting the pump when power supply voltage is abnormal. Difference between power supply voltage and rated voltage should be no more than 10%. Excessive voltage will cause overheat of motor and burn out the winding. If the voltage is too low, rotate speed of motor will decrease.

Do not start and stop the motor frequently. It will back flow when the motor stops rotating and if starting the motor immediately, the motor will start up with load, which will cause the winding burn.

Do not let the pump operates with load for a long time and do not pump the water with large sediment to avoid burning out the motor. The operator must observe if the working voltage and current of the motor within the stipulated value on the nameplate at any time. If it does not match, stop the motor to find out the reason and remove the fault.

Rotate direction of the motor must be correct. Currently, there are many types of submersible pumps that are capable of delivering water both forward and reverse. However, water yield is small and current is large when the pump is reversed and motor winding will be damaged when it lasts for a long time.

Often check the motor at ordinary times. If find there are cracks on the lower cover and rubber sealing ring is damaged, change or repair them timely to avoid water infiltrating into the submersible pump.

Manufacturers recommend: ShenLong stainless steel pump

Solar water pump

Solar water pump is also called photovoltaic pump, which is the most attractive water supply method in the world’s sunny areas, especially the areas lack of electricity. The system will operate automatically with no staff supervision. Maintenance workload can be reduced to a minimum. Solar water pump is the green energy system setting economy, reliability and the benefit of environmental protection as a whole.

Taking use of electricity from solar battery, solar water pump system will drive sensor and motor to drive the pump and lift water from the deep in the earth’s surface to the ground. Solar water pump provides a good method for developing modern agriculture, energy saving and environmental protection.

Solar water pump manufactured by Zhengzhou Shenlong Pump Co., Ltd has receive costumers’ consistent high praise. We warmly welcome customers both at home and abroad to consult and purchase!

General trend of water pump industry development

General trend of water pump industry development can be summarized as:

(1) Large capacity and high head. Increase of pump capacity will reduce the cost of equipment and construction to save energy.

(2) High speed. In recent years, with the development of technology, rotate speed of the pump is higher and higher. For the pump, increase of rotate speed will improve the single-stage head of pump. Thus, when the total head is the same, the series of the pump can be reduced and the length of the pump can be shortened, which can also reduce the size and weight and save raw materials and manufacturing costs.

(3) High efficiency. The pump is general machinery product, power consumption of which is objective. Thus, improving pump efficiency has great significance to save energy.

(4) High reliability. The requirement for reliability is higher and higher for pump develops towards large capacity and high rotate speed direction. Reliability of the pump should be guaranteed from the aspects such as design, manufacturing, installation to operation.

(5) Low noise. Noise pollution is harmful to people’s health. Currently, most of countries have done a lot of researches on the mechanism of noise control, noise detection technology and noise limit.

(6) Automation. With the development and application of computer and network technologies, the units above 300MW have fully realized computer network monitoring and control of DCS. In DCS system, the pump is not single-machine control, but network monitoring and control. The system can realize online real-time monitoring and control of flow, pressure and temperature and online automatic fault diagnosis, automatic chain and protection.