How to maintain the 380V vertical pressure pump for community water supply

1. The system should be cleaned and purged before the equipment is put into operation, so as to avoid impurities from entering the pump body and causing damage to the equipment.

2. The pump should not run for a long time under the condition that the outlet valve is fully closed, nor should it run at the hump in the performance curve, let alone run dry, and the leakage of 10 20 drops min is allowed when the shaft seal is sealed with packing.

3. The bearing temperature shall not be higher than 75 degrees Celsius during operation.

5. Necessary measures should be taken to prevent equipment from being fouled and corroded for a long time, and anti-freezing and warmth measures should be adopted for winter shutdown.

6. The operating equipment should be discharged in the early stage according to the water quality.

1. The pump room should have good ventilation, dehumidification and drainage conditions. Ensure that the ambient humidity in the pump room is 90%.

2. The pump room should keep the ground dry and free of stagnant water, and a water collection pit should be set up.

3. The pressurized pump of your ** water supply is a few preparations, and you should change the pump regularly to work, and it is recommended to change it in January at the latest.

4. To oil the pressurized pump, it is high-temperature oil (commonly known as "butter").

Hope!! Thank you.

Landlord: It also depends on how powerful your pump is, what is the sealing method? I have a complete operating plan for the maintenance of pump equipment and controllers in the pump room, if you need it, you can continue to ask me for it.

Installed in the water line, at the lowest position from the water level.

When installing the tap water booster pump, it must be installed horizontally or vertically according to the "installation method" display, and the water flow direction should be consistent with the direction of the arrow on the pump body, and it should be installed at the lowest position from the water level as far as possible. For ease of use and maintenance, a valve should be installed on the pump inlet line.

When the suction liquid level is lower than the upper end face of the impeller of the pump or the shaft of the pump, the pump should be installed with a check valve, and the outlet end should be connected with a tee for water diversion, and the pump should be filled with water when it is used for the first time, and the screw plug should be tightened. The pipeline connection should be tight, especially the inlet pipeline should not leak, otherwise the head of the pump will be reduced or the water will not be pumped. Before the pump chamber is filled with water, do not rotate for a long time to avoid damaging the seals.

When the pump cannot pump water, the pump is installed on the tap water pipeline, if the horizontal plane of the tap water is below the plane of the impeller (horizontal installation) or the center line (vertical installation) of the pump, the power supply should be turned off at this time, and the power supply should be turned on when the tap water level rises above the impeller plane or center line, so as not to damage the parts (automatic type does not need to turn off the power).

Booster pumps in high-rise buildings are generally installed in the underground machine room and the middle floor.

Booster pump, as the name suggests, is a pump used for pressurization, and its main uses are water heater pressurization, low water pressure in high-rise buildings, sauna and bathing, pressurization of insufficient water pressure on the top floor of the apartment, solar automatic pressurization, reverse osmosis water purifier pressurization, etc.

Working principle: first fill the booster pump with liquid, then start the centrifugal pump, the impeller rotates rapidly, the blades of the impeller drive the liquid to rotate, the liquid rotates and flows to the outer edge of the impeller by inertia, and the impeller sucks the liquid from the suction chamber at the same time, in this process, the liquid in the impeller flows around the blades, and the liquid acts on the blades in the flow movement, and in turn the blades act on the liquid with a force equal to the size of the lift and the opposite direction, and this force does work on the liquid, so that the liquid gets energy and flows out of the impeller. At this time, the kinetic energy and pressure energy of the liquid increase.

What is the best location for a booster pump in a high-rise building to be installed?

In general, high-rise buildings are divided into primary and secondary water supply.

For example, the building is 105 meters high and has 26 floors, and the 11 presses from the underground computer room are directly to the top floor for a water supply.

The building is 105 meters high and has 26 floors, and 6 underground computer rooms are pressed to the 13th floor, and the 13th floor is equipped with a water tank and a secondary pressurization station, and then 6 are pressed to the top floor.

The water supply system of the community starts from the main water meter node of the municipal water supply pipe into the community, and ends at the water inlet meter node of each building in the community. High-rise buildings mainly use the following three types: water storage tanks, pumps, and water tanks are connected to each area for parallel water supply; Water pump and water tank are connected in series; The tank is depressurized and fed.

Generally, stainless steel vertical multistage pumps are used, which is no different

Compared with the general household water, the villa uses a relatively large amount of water, and the general municipal water supply pipe may be distributed to 25mm. Under certain conditions, the inverter automatic booster pump used in general households may not be able to meet the peak water consumption of villas and other occasions, which requires the increase of the pump's water pressure, which must be met by the inverter booster pump of Wilo and Grundfos, and the power is generally less than 1kw. If you turn the faucet to a very small point, the booster pump is only in a low-speed slow running state, which can not only stabilize the pressure, but also play a role in energy saving and noise reduction.

That's why many people choose inverter water pumps for boosting.

Hello, look at how big that villa is, generally 100 watts to 200 watts will do.

There is no fixed form of water supply system, and the water supply mode is determined according to the requirements of the user and the external water supply situation. First of all, the water supply system must have a reliable water source guarantee. At present, the pressure of the municipal pipe network in most cities in China is in between.

Generally speaking, the original multi-storey residential buildings and high-rise residential low-rise areas can be directly supplied with water by using the pressure of the municipal water supply network. However, high-rise residential buildings need to be pressurized twice to meet the use requirements. According to the "Code for Design of Building Water Supply and Drainage", "the hydrostatic pressure at the minimum sanitary appliance water supply fittings in each zone should not be greater than the standard, the water supply pipe network of high-rise buildings must be vertically divided into several areas to reduce the hydrostatic pressure of the lower pipeline system.

In addition to preventing the network from exceeding its working pressure, reducing the pressure also prevents noise and vibration from water hammer. The water supply pipeline of high-rise residential buildings is complex, the pipeline is long, and the energy consumption is large, so the selection of appropriate water supply methods for reasonable zoning is the key to ensure the water pressure and water demand of high-rise residential buildings, save energy consumption and reduce investment. This partitioning method is widely used because of the good effect of the pressure reducing valve, the low investment and the fact that it does not occupy the construction area.

There are generally three ways to design the water supply system of high-rise residential buildings: Each high-rise building is equipped with an independent domestic water supply system. In this way, as many high-rise residential buildings as there are in the design community, there are as many domestic water pump rooms as there are in the community.

Managing pump room equipment and pools is not only troublesome, but also the water quality is susceptible to secondary pollution; Set up a centralized pumping station for water supply. Set up a domestic water pump room and living pool in the community, and the project cost of the pump room equipment and pool is relatively economical and easy to manage. Therefore, this form is often used in design.

Adjust the water tank and frequency conversion water supply equipment to pressurize the water supply. This kind of system not only saves the construction area and cost, but also saves power consumption, and can also prevent the secondary pollution of the water source, and the automatic pressurization equipment can reduce the operation and management costs. In the middle of the system, domestic or imported pressure reducing valve control is adopted, which makes the whole system simple and practical, and has been welcomed by users.

The system is divided into two areas, high and low, and the low area is equipped with proportional pressure reducing valves, which are directly supplied by the municipal pipe network; The high zone is pressurized by the regulating tank and the variable frequency water supply equipment. The water meter is located in the stairwell in layers, which is convenient for meter reading. In addition, the frequency conversion speed regulation is small in size, light in weight, easy to install, does not occupy the area of the pump room, stepless speed regulation, large speed regulation range, smooth adjustment, can extend the service life of the pump, has instantaneous overcurrent protection, overload protection, overvoltage protection, loss of voltage and power outage and other protection functions, can ensure the safe operation of the equipment, the water supply pressure is constant, can improve the quality of water supply, but also conducive to the safety of water equipment.

The lake and autumn moon are harmonious, and the surface of the lake has no wind mirrors and is not polished.

There are two ways to control the switch of a pipeline pressurized pump installed on a water supply pipe:

1. Control method:

Manual control: Use the general air switch, turn the switch on when using water and turn off the switch when it is not in use. This method is simple to operate, but frequent start-up is not conducive to the life of the pump and is also troublesome.

Pressure controller control:

A pressure switch is installed on the water supply pipe to control the start and stop of the pump, but because the water storage in the pipeline is very small, when the pump is turned on, the pressure is hit, and the pressure control automatically stops the pump. After that, as soon as the hose is turned on a little, the pressure will drop immediately, and the pump will start again. The water pump starts frequently, which is not conducive to the service life of the pump.

2. Installation conditions:

The pump must be installed in such a way that there is water in the pump.

After the pump, it is best to set up a small air pressure water storage tank (you can buy it for dozens of yuan) to adjust the water volume and reduce the frequent start and stop of the pump.

Two options: 1 Replace the larger water storage tank. And adjust the pressure switch, to a small adjustment, (it is recommended that you use an electric contact pressure gauge about 200 yuan) the pressure is enough. 2 Replace the high-power motor. (This will make it difficult for your water pipes to work due to unstable pressure).

A non-shock relay can be used to control the turn-on and disconnection of the pressurized pump.

Yes, if there are few pipes, when the pump hits the pressure up and stops, as long as the water pipe is opened a little, the pressure will drop immediately, and the pump will start again. Because there are few pipelines, there is very little water that can be buffered, so it will start non-stop. Stop it.

In this way, it is easy to burn the motor, which has nothing to do with electrical components. I recommend using a variable frequency pump. Or add a water jug.

The inverter pump has the best effect, and the pressure is also stable, which is a bit expensive.

Adding a water tank will occupy a certain amount of space, the effect is better, the principle is to let the water have a buffer space, if the water consumption is small, it will not be started so frequently, like a towerless water supply.

In fact, it is to accelerate the water, so that the fluid has a hydrodynamic pressure, which can be understood as kinetic energy, and the pump outlet adds a bracket structure to convert the hydrodynamic pressure into hydrostatic pressure, that is, the fluid pressure that can be measured.

The centrifugal force generated by the continuous rotation of the impeller of the water pump pressurizes the water.

Starting from the total water inlet, that is, the node of the municipal pipe, now the main water supply pipeline of the community water supply is mostly used in the annular water supply, that is, the municipal entrance comes in on the left and right sides of the community to walk around a circle, the general plan is very good-looking, you are familiar with the icon, gate valve, butterfly valve, tee and the like, in the attention to the pipeline direction at the pressurized pump room can be more Look at it I believe you I am a non-professional personnel to see 2 will be.

1.Let's start with the design description.

2.Looking at the legend.

3.Now look at the system diagram, and look at the floor plan to see how the water supply, drainage, and fire pipelines go 4Check whether there is overlapping, insufficient burial depth, and cross-pipeline fighting5Check the distance from the building, how to get in and out, etc.

What is the appropriate pressure adjustment for the pump in the community? It should be decided according to the height of the floor of the community, generally below 5 floors by the municipal water supply pipe network directly, 6 to 10 floors, 11 to 14 floors and 15 floors and above should be supplied by frequency conversion water supply equipment (of course, it should be decided according to the actual situation of the community). At present, the height of each floor of the residential building is about 3 meters, and the number of meters on the highest floor plus 20 meters can be used as the supply head of the pump (every 10 meters, and every 1 floor above 11 floors should be raised by 3 meters, that is, it is advisable to increase.

Theoretically, it is ten meters to hit vertically, and there is a loss of water along the way up, and you adjust it enough. Give it a try.