Daily maintenance of water pump and others, rapid suspension 20 chase 20

Check the power supply wire of the water pump for aging, broken skin, and leakage of the copper core of the power cable. In this case, if the power cord is on the shore, it can be wrapped. If it is in water, it is best to replace the power cord.

Always check whether the pump impeller has mud, foreign objects, etc. blocking the water outlet impeller or water outlet, check whether the sound of the pump is good when running, if there is a brittle sound, it means that the pump bearing is damaged, and it needs to be repaired, refueled, and replaced. Check whether there is any leakage when the pump is running. If there is leakage, please send it to the maintenance department for maintenance.

2.There are three causes of abnormal noise.

One. The water pump bearing is damaged and needs to be replaced.

Two. The impeller of the water pump is loose, and it is ground to the bottom end cover of the water pump.

Three. Damage to the pump coil.

3.There are four reasons why the pump does not supply water properly.

One. A water pump is not a centrifugal pump. Whether water diversion work is required, II. Whether the water pump is reversed, and if it is reversed, replace the capacitor connector method.

Three. Whether there is any foreign matter in the pump outlet or in the gap of the impeller.

Four. Whether the water pump seal is in good condition.

Daily maintenance: check the normal operation of the pump.

Abnormal noise: It is caused by bearing damage, insufficient lubricating oil, stator and rotor rubbing iron (eccentric, not centered), and the rotor is not vertically deformed.

Normal water supply of water pump: can not supply water normally after starting, check whether the impeller of the water pump is damaged? Check that the water pipes are in good condition? Is it a self-priming pump? Otherwise, there must be a water diversion system.

2.How to deal with abnormal noise in the water pump: first use the listening needle to listen to the abnormal sound at the bearing, which may be the bearing damage, and the abnormal sound in the pipeline indicates that the operation is adjusting the flow system parameters.

3.After the pump is started, the water supply cannot be supplied normally: first see whether the various measures are complete, such as whether the inlet and outlet are opened, whether the pressure is not enough, check whether the impeller is damaged, and whether the parts are installed properly.

1) Keep it clean, lubricate all parts, and remove foreign bodies from the suction mouth after use.

2) Frequently check the integrity of the wire, whether there is damage, if there should be a professional in time to replace and repair.

(1) Keep it clean, lubricate all parts, and remove foreign objects from the suction port after use. (2) Frequently check the integrity of the wire, whether there is any damage, if there should be timely replacement and maintenance by professionals.

1. The corrosion resistance level of the material is different: the stainless steel impeller is used for a longer time, hygienic and clean, and the bronze impeller is also more corrosion-resistant, mainly used in firefighting, seawater and other occasions, but it is not as good as the stainless steel impeller. (Except tin bronze.)

This material is much better than stainless steel, ** better).

2. Different efficiency: the use efficiency of stainless steel impeller is a little higher, 3. The price is different: 304 stainless steel.

The impeller is much more expensive than bronze and two-way stainless steel.

4. Different materials and different environmental protection levels

5. Different temperature conditions: bronze has excellent low temperature resistance, and the strength will not decrease at minus 100 degrees. Replaced with chrome-nickel stainless steel, it is brittle like glass at dozens of degrees below zero. At room temperature, the mechanical strength of stainless steel is higher. (Learn from experience.)

The pump assembly and the pump are the same, but the name is different, just like all the car parts are called the assembly, and the water pump is the same, called the pump assembly. There is also a water pump semi-assembly, which is the water pump head.

A water pump is a machine that transports or pressurizes a liquid. It transmits the mechanical energy or other external energy of the prime mover to the liquid, so that the liquid energy increases, and is mainly used to transport liquids including water, oil, acid and alkali, emulsion, suspension emulsion and liquid metal, etc., and can also transport liquids, gas mixtures and liquids containing suspended solids. The technical parameters of pump performance include flow, suction lift, head, shaft power, water power, efficiency, etc.; According to different working principles, it can be divided into volumetric water pumps, vane pumps and other types.

Positive displacement pumps use changes in the volume of their studios to transfer energy; Vane pumps use the interaction between rotary vanes and water to transfer energy, and there are types of centrifugal pumps, axial flow pumps and mixed-flow pumps.

Yes, all auto parts are called assemblies, and water pumps are the same, called water pump assemblies. There is also a water pump semi-assembly, which is the water pump head.

Water pump components: stator, rotor, bearing, housing, sealing system, consider it yourself.

—so easy ！

It is to compress the gas and release the liquid, such as the bottled water in life, and the air must be compressed by a water pump to make the water flow out.

A water pump is a machine that transports or pressurizes a liquid. It is mainly used to transport liquids including water, oil, acid and alkali liquid, emulsion, suspension emulsion and liquid metal, etc., and can also convey liquids, gas mixtures and liquids containing suspended solids.

If you need to drain water, you can use a water pump to replenish the water. Depending on your needs, you can choose a different size of pump. or corrosion resistance, strength, temperature resistance, etc. You can ask customer service more.

Energizing equipment that provides kinetic energy to raise the flowing liquid to the required head and flow.

It is not enough to have aquatic plants alone, but it is necessary to circulate with a water pump to increase oxygen. Install an aeration pump. The main function of the submersible pump is to filter the power of the system**, you are using the aquarium to feed in exchange for a fish bowl, if it is a fish bowl, there is no need to install it.

Henan Zhengzhou water pump fire sprinkler pump Zhengzhou Tianhai. According to the needs of users, the axial seal can be a mechanical seal, which is composed of a gland, a flat gasket, a shaft sleeve and a mechanical seal, which is a single-acting unbalanced mechanical seal. When installing the mechanical seal, the end of the return hole on the pump cover should be equipped with a flow plug to allow a small amount of water to enter the packing chamber.

The direction of rotation of the pump, from the drive end, is clockwise. The installation method of the pump is divided into rigid connection installation and flexible connection installation.

The function of the water pump is to pressurize the coolant and ensure its circulation in the cooling system. Centrifugal water pumps are widely used in automobile engines. When the impeller of the water pump rotates, the coolant in the water pump is driven by the impeller to rotate together, and is thrown to the edge of the water pump housing under the action of centrifugal force, and at the same time generates a certain pressure, and then flows out of the outlet pipe.

At the center of the impeller, the pressure drops due to the coolant being thrown out, and the coolant in the radiator flows into the center of the impeller through the inlet pipe under the action of the pressure difference between the inlet of the water pump and the center of the impeller. The impeller is made of cast iron or plastic, and there are usually 6-8 radial straight or backward curved blades on the impeller. The water pump housing is made of cast iron or aluminum, and the inlet and outlet pipes are cast into one with the water pump housing.

1.As the name suggests, the pump is used to pump water. It is an industrial product"pumps"in one of the kinds. (In addition to pumping water, the pump can also pump solid-liquid duplex substances, such as: mud pumps, concrete pumps (also known as concrete pumps, can be seen on construction sites).)

2.The general working principle of the water pump: the impeller rotates, throwing out the water from the drain pipe to form a vacuum, and the water from the inlet pipe is pressed into the pump under the action of atmospheric pressure, and then forms a continuous flow of water.

3.Where can it be used: household (for example: booster pump when the water pressure is not enough), agriculture (irrigation pump), municipal (transport tap water), mine (drainage), dangrang, the most used is a variety of industrial pumps.

A pump is a pump, you know.

There are many kinds of pumps, you can refer to some professional introductions of the company, Shandong Henderson Pump Industry **** pumps are relatively complete, please refer to.

Hello the average single-storey building is about meters high, then the height of a 20-storey building is 70-80 meters. Taking into account the head loss of the pipe fittings, a head of 90 100 m for the pump is more appropriate (the margin is taken into account).

The problem is divided into two aspects, one of which is that the head is selected high, which causes the pump to run with a large flow, that is, the pipeline resistance mentioned in the "northern snow field" is much smaller than the pump head. You can first judge whether the static head is much smaller than the pump brand lift according to the distance from the outlet of your pump to the highest point at the end of the pipe.

If it is much smaller, the selection is a bit problematic. If your pump is a pressurized system (e.g. spray cooling), then ask the design institute to give an exact pipe resistance value to see if the design is reasonable.

But from the situation you described, the outlet valve is not opened, and the current reaches 44A when the inlet is opened, I think there is a problem with the pump itself, otherwise the current should not exceed 25A at this time, because the flow rate is 0 at this time, and the pump is still running under no load and has not done work.

Second: the quality of the pump itself * (I judge on the pump) when the inlet valve is not opened, there is no pressure at the inlet, and the impeller of the pump is also in the original position, at this time there is no grinding, so the motor is not overloaded, when the inlet valve is opened, the inlet pressure is from the bottom to the top of the impeller, so that the impeller and the guide vane of the middle section of the pump at all levels are grinding, so the outlet valve is not opened and runs at full load.

Generally, there is a positioning nut at the shaft extension end of the multistage pump, the function of this nut is to fix the position of the impeller, adjust the spacing between the impeller and the middle section and the guide vane, to avoid dead spots, please check whether the nut is loose, whether there is axial channeling, if it is a repaired pump, in addition to checking the nut, the installation of the middle section at all levels should be checked again, whether there is a certain position is not installed in place.

(1) The impact of basic installation on the equipment body.

The quality of the basic installation of the equipment has a great impact on the quality of the operation of the equipment. Improper placement of horn pad, easy to cause the equipment around the foot bolt hanging, in the process of aligning and fastening because of the horn suspension, tighten the anchor bolt will cause the crankcase in the crosshead slideway deformation, crosshead in the slideway reciprocating operation is blocked to cause the load to increase.

W5 type reciprocating vacuum pump its structural design cylinder block at one end of the body, cylinder block plus piston, intake and exhaust valve after the weight is heavier, in the basic design if there is no consideration of the lower support or upper hanger of the cylinder body, the cylinder body will be in a suspended state, because the self-weight of the cylinder body will cause the deformation of the crankcase slideway and the cylinder block and the slideway concentricity difference, so that the crosshead is blocked when the reciprocating operation in the slideway and the piston is blocked when the reciprocating operation in the cylinder causes the load to increase.

According to the above analysis, it is found that the end of the cylinder block of the vacuum pump is slightly lower than the end of the crankcase, the horn of the end of the cylinder block is less, and the crosshead slideway is deformed after fastening the anchor bolts, so that the crosshead is blocked in the slideway and the piston is blocked when the reciprocating operation in the cylinder causes the load to increase, which is one of the reasons for the overheating of the motor.

2) Coking of cylinder block and valve.

Affected by the process, the reciprocating pump cylinder block and valve body are very easy to coke, and the coking of the cylinder block and piston will cause the piston to be hindered during the reciprocating operation of the cylinder body and cause the load to increase; Coking of the valve body will cause poor exhaust, the valve plate is not closed tightly, the load will be increased, and the vacuum degree will be low; Coking in the gap of the cylinder block will also cause the piston to hit the cylinder and increase the load, and the inspection found that the cylinder block and valve plate have coking, which is the main reason for the low vacuum.

The problem is very clearly described. This situation is mostly caused by overload, that is, the outlet pressure is very low and the flow rate is greater than the rated value, which can be adjusted by increasing the outlet resistance or closing the outlet valve, and reducing the flow rate by increasing the resistance is lower than or equal to the rated flow. Head is not an influencing factor.

The main reasons:1Poor lubrication of the bearing or peeling of the bearing quality will lead to an increase in the running resistance of the water pump.

2.The gap between the pump cover and the impeller mouth is too small, and the impeller mouth rubs against the pump cover.

3. The belt is too tight, resulting in an increased load.

4.The power of the centrifugal pump is proportional to the flow rate, the larger the flow rate, the greater the power required, and the large flow rate at low head leads to heavy load.

Maintenance of water pumps: 1The water pump should be maintained daily, and the water seal should be checked every day to prevent the water seal from being damaged, and the water directly entering the bearing to accelerate the wear.

2.The belt adjustment should be appropriate, not too loose or too tight.

3.In strict accordance with the standard operation, for low head pumping load aggravation, the flow should be controlled by throttling to reduce the load.

1.The steering is reversed, and the steering is reversed.

2.If you have a problem with the assembly of the water pump, find an expert to reinstall it.

3.The motor power does not match the water pump, or there is a problem with the quality of the motor.

Buy head to meet your needs, the motor coil is copper, and the general brand can be.

It depends on your three needs, how much water you need per hour, how much head you need to use, how big the diameter of the well is. See my info. Consultation.