Why does the water pump make noise when the water is not in the house the pump is off .

First of all, it is necessary to distinguish the reasons: 1. Whether the pump body is fixed after the connection between the water pipe and the pump (if it is not fixed, it may resonate, and it can be fixed; If it is suspended in the pipeline, it may be that a part is loose and causes resonance noise, so it can be tightened. The remains of the refuge transfer agent to distinguish the glass building.

2. The circuit problem of the pump motor, caused by the coil in the motor is not firmly fixed, the solution is to disassemble the motor and pull out the rotor, and the shell and stator.

The shell and coil part) should be baked with a bulb with a higher power bulb (about 2 to 4 hours), and if possible, some insulating paint should be poured between the shell and the coil (do not pour between the stator and the rotor). In particular, it should be noted that: 1. Safety first; 2. The second point is best carried out under the guidance of a master who knows how to maintain electrical appliances.

Digression: When buying a water pump, you must buy one with quality assurance. Don't try to save money on inferior goods (mainly from a safety point of view:

1. Insulation performance; 2. Mechanical properties.

I wonder if it helps you? I wish you a good hand.

All of the above is good.

But there is another reason.

You try to see if the noise will be reduced when you turn on the faucet, which may be caused by holding the pump.

In the beginning, the performance of the pump was better.

This vibration noise is not noticeable.

Now the overall performance is dropping.

After the parts are worn.

will increase the noise.

The fish tank has a buzzing resonance sound, which is very annoying, and fish farming is meant to be fun, because if the noise adds to the annoyance, it is really worth the loss.

The fish tank resonates, and the root is the water pump. Around the pump, we can find the cause and rectify it from the following three aspects.

One is the reason for the pump itself. After the pump has been used for a long time, it will inevitably age, or there will be some debris wrapped on the shaft, which will cause the shaft speed to slow down, and the pump may make a buzzing sound by itself. The pump can be lifted out of the water, and if you can hear a noticeable humming sound, you can determine that it is the pump problem.

In this case, you can replace the pump with a new one, or disassemble the pump and clean it yourself.

The second is the resonance between the pump and the pipeline. Especially when the pipe is a hard material, the vibration of the pump itself will be conducted to the pipe, and the pipe actually plays a role in amplifying the sound. In this case, the place where the pump is connected to the pipe can be replaced with a hose.

The third is the resonance of the cylinder block. Resonance often occurs when the fish tank is capped above or there is a hollow cabinet under the tank. But the source of the sound is the water pump.

Take a closer look, find the parts where the pump is in contact with the cylinder, and pad these parts with a sponge, which can basically be solved. Or adjust the direction of the fish tank and change the position, which may also solve the problem. The general rule is not to allow the hard water pump to come into direct contact with the hard cylinder block.

The noise of the pump is annoying, and it can be easily solved with 2 tips.

Noise reduction measures for loud water pumps:

1.Pump sound insulation: use the water pump sound insulation cover, and use the sound insulation material to make the sound insulation cover to isolate the water pump. Avoid outgoing sounds. And install a fan in the sound insulation cover to speed up heat dissipation, and install a muffler in the inlet and outlet air holes above the sound insulation cover to reduce the inlet and outlet noise.

2.Vibration reduction of water pump: The biggest noise problem of water pump is caused by vibration, including vibration of water pump and pipeline, etc., first install a vibration reduction platform under the water pump to reduce the vibration of the water pump.

The pipes and inlet and outlet pipes on the pump are elastically supported and soft connections are used. The holes in the walls through which the pipes pass are filled with sound-absorbing and insulating materials.

3.Pipeline damping sound insulation, pipeline vibration is the air sound noise generated will also have an impact on the lives of residents, so we need to carry out comprehensive damping and sound insulation bandaging treatment on the pipeline, on the one hand, it can reduce the vibration of the pipeline, and the other aspects can play a role in isolating the air sound.

Water pumps are generally used for families with insufficient water pressure, especially for people who live in high-rise buildings now, it is still relatively common to encounter insufficient water pressure. Next, let's take you to understand the relevant content.

1. Why does the water pump still sound when it doesn't use water?

1. When the water pump is not using water, it is generally not a loud slap, but if there is noise, it is likely to be caused by a problem with the return water seal of the pump.

2. Generally speaking, the structure of the pump is relatively compact as a whole, and there are switches in the pumps, and the control switch is the water flow in the water pipe, as long as the water in the water pipe is in a flowing state, then the booster pump will be started, which will lead to the problem of the booster pump making a sound.

2. How to avoid the sound of the booster pump.

1. The water pipe booster pump does make a loud sound when it is working, and this sound will directly affect the sleep quality of people who are sleepy for people who are sleepy, and it will also have a certain impact on their daily life.

2. In this case, we can choose to unplug the booster pump when we don't need to use the booster pump, or choose to install a pressure relay at the water outlet of the booster pump, which can also effectively alleviate the problem of the booster pump's sound.

3. In addition to this method, we can also choose to adjust the screws inside the booster pump, and friends who can't solve it by themselves can also directly contact a professional master to help deal with it, so that the noise reduction effect of the booster pump is also better.

Article summary: the necessity of the use of booster pump is actually relatively large, especially for the high-rise residents with insufficient water pressure, the role is still very obvious, there is a problem about the noise of the pump is introduced here, and friends who want to know more about it can also continue to pay attention to the relevant reports on the Qijia network.

There are many reasons why pumps can run noise

Impurities enter the pump, and air enters the system pump.

Disassemble and clean the water pump.

The impeller rubs against the pump body, creating noise.

impeller problems, reinstalling the impeller or replacing the impeller;

The motor is bumped or knocked and causes the stator magnetic field to deform, causing motor noise, and replacing the motor with the phenomenon of motor heating.

The machine seal is damaged, causing friction between the dynamic and static rings, or between the machine seal and the shaft or pump chamber to replace the machine seal; If the shaft is seriously worn, replace the motor, rotor and water pump, and the operating head and flow rate exceed the rated working area, resulting in cavitation and causing noise1reduce the height of the suction tube;

2.Adjust the outlet valve, reduce the flow rate of the pump, reduce the head, and restore the pump to normal working conditions;

3.If the above method is not feasible, consider re-sizing.

The brand of Yimaike is very good, I recommend it to you.

It is inevitable that the pump will make a sound when it is running, in terms of performance configuration, the better the pump will produce the lower the sound, at present, such as Grundfos, Wilo and other good pumps can be relatively silent!

Then check that the drain pump is securely fastened!

It is caused by the operation of the motor or the rotation of the bearing.

There may be several reasons for the noise of the water pump:

1) The impact of the rotary vane on the cylinder block, the residual volume of the water pump and the sound of the pressure oil in the exhaust dead gap;

2) The impact of the exhaust valve plate on the valve seat and supporting parts;

3) Echoes and bubble bursts in the box;

4) Bearing noise;

5) Noise caused by a large amount of gas and oil impacting the oil baffle, etc.;

6) Miscellaneous. Such as the noise caused by transmission, the fan noise of the air-cooled water pump, etc.

7) Motor noise, which is a crucial factor.

Noise originates from the vibration of objects, and water pumps are no exception. The noise of a water pump consists of three parts.

1. It is the electromagnetic noise when the motor is running;

2. Dynamic noise when water flows;

3. Mechanical noise of water pump operation.

Mainly 2 and 3. Dynamic noise is caused by eddy currents or sudden changes in pressure in fluids, while mechanical noise is caused by mechanical vibrations.

This is inevitably produced by the operation of the pump, and its size is related to the quality of the pump itself, the quality of installation, the pipe, the pump flow and the head.

Solution:

1. Install the water pump or reduce the installation height of the water pump

2. Replace the ball bearing of the motor;

3. Correct the bent water pump spindle or adjust the relative position of the water pump and the motor.

Other faults and solutions:

The water pump will not start.

1. Relax the filler and dredge the drainage tankDisassemble the pump body to remove debris and rust;

2. Remove the pump shaft to correct or replace the new pump shaft.

Causes of noise:

1. The installation of the pump is not firm or the installation of the pump is too high

2. The ball bearing of the motor is damaged;

3. The main shaft of the water pump is bent or not concentric or parallel to the main shaft of the motor.

Treatment method: 1. Install a stable water pump or reduce the installation height of the water pump;

2. Replace the ball bearing of the motor;

3. Correct the bent water pump spindle or adjust the relative position of the water pump and the motor.

Other faults and solutions:

The water pump will not start.

1. Relax the filler and dredge the drainage tankDisassemble the pump body to remove debris and rust;

2. Remove the pump shaft to correct or replace the new pump shaft.

The high-rise water supply of high-rise buildings is generally completed by the water pump located outdoors or under the building to the water tank on the top floor, this water pump is filled with water in the water tank on the top floor, until the water level of the next water tank is lower than the set limit value will be pressurized again, and some buildings use the water pump secondary water supply and other methods to complete, it is a 24-hour pressurized water working mode, continuous work. The noise generated by the pump when it is working is called pump noise.

Although low-frequency noise is not as obvious as high-frequency noise, it is often easy to be ignored by people, but long-term low-frequency noise will have a great impact on human health and is a potential killer of urban residents' health.

Pump treatment measures:

The pump room is generally located in the basement of the building, and the noise it produces is mainly in the following aspects: the air sound generated by the operation of the pump motor, the vibration of the water pump caused by the vibration of the building foundation and the disturbance of the water pumped by the water pump, so as to stimulate the resonance of the pipeline. Therefore, to solve the problem of pump noise, it is necessary to start from three aspects: air sound, equipment vibration and pipeline vibration.

1. Air acoustic treatmentAir sound insulation is relatively easy in terms of pump noise control, the air sound generated by the pump generally does not exceed 85db (a), and the pump room and the residential room have at least one floor separation. Generally, the air sound insulation of 120mm cast-in-place concrete is greater than 52db, which is quite beneficial to isolate the air sound of the water pump. However, now the state has stricter requirements for the indoor sound environment of residents, so if the pump room and the residents are only separated by a distance of one floor, the sound insulation needs to be treated with special treatment, and the commonly used methods are to add sound insulation cover, sound insulation ceiling, indoor sound absorption, etc.

2. The vibration isolation of the system pump system generally uses the vibration isolator, if the vibration of the pump is relatively strong, it is better to choose the floating ground, because the vibration reduction effect of the floating ground is better, and the frequency band that can play the role of vibration reduction is also wider.

3. Increase (replace) rubber soft connection at the outlet of the pump for pipeline vibration isolation treatment, generally the soft connection length is shorter and the elasticity is poor, resulting in the overall vibration isolation effect is not ideal, and the vibration isolation effect will be significantly increased after replacement. Professional vibration isolation products with good vibration isolation performance, long length and corrosion resistance should be selected for soft connection.

4. The general connection between the pipe support and the ground is hard connection, which causes the vibration of the pipeline to be transmitted to the building structure, and the vibration reduction treatment is done under the support, which can better prevent the transmission of vibration energy to the building structure.

5. Pipeline through the wall treatmentGenerally, the pipeline and the wall are hard connected, and a considerable part of the energy of pipeline vibration is transmitted to the building structure, so the pipeline and the wall should be disconnected to prevent the transmission of energy.

6. Pipeline damping and sound insulation bandaging The vibration noise of the pipeline is high, and the vibrating air sound will also affect the residents, so it is necessary to carry out comprehensive damping and sound insulation bandaging of the pipeline, on the one hand, it can reduce the vibration of the pipeline, and on the other hand, it can also play the role of isolating the air sound. It can be seen that the pump noise control is a professional and systematic transformation project, which should be designed and processed from the sound source, transmission and user reception, so as to minimize the impact of pump noise on residents and build a peaceful space and harmonious living environment.

First of all, I would like to express my sympathy and condolences to you and your family who have endured the noise.

The pump house is a public facility and equipment, and the property rights belong to all owners. Under normal circumstances, the property is responsible for the maintenance of public facilities and equipment, such as the failure of the water pump, the property must be maintained, as long as the equipment can be guaranteed to operate normally. If it cannot be repaired, it will need to be repaired or renovated, and the cost will be covered by the maintenance**.

According to the landlord, theoretically, the property is the party without responsibility, but it should not be said nastyly. But there is actually a solution, but it may encounter great resistance, and the solutions are as follows:

1. Find the owners' committee to respond, indicate the practical difficulties, and hope to consider replacing the pump (silent pump) to reduce the noise. However, this must be paid for by the maintenance funds, (according to the regulations, the use of maintenance funds requires a vote of not less than two-thirds of all owners, and more than two-thirds of the owners must also vote to approve more than two-thirds) If more than one-third of the owners do not agree to use the maintenance funds to replace the pumps, then this plan will not work.

2. Find the property to react, hoping to carry out normal maintenance of the pump (the sound of the pump after adding lubricating oil and replacing the packing will be slightly smaller), so that the noise can also be appropriately reduced. If the property uses the reason that the pump is not broken, or promises to solve the problem but does nothing, then this solution will not solve the problem.

3. Carry out the dead knock in the form of ****, first find out the environmental management zoning of the area where your residential community is located, according to national norms, if it belongs to a class of areas, the sound value after ten o'clock in the evening does not exceed 45 decibels. If it is a Class II area, the noise level shall not exceed 50 decibels, and the other shall not exceed 55 decibels. If the above boundaries are exceeded, it is a nuisance to the people and needs to be rectified.

If it is still within the warranty period of the house, it is the real estate developer to fund the solution, if it has exceeded the warranty period, it is necessary to use the maintenance funds to rectify. Good luck.