Be sure to cut off the power before the maintenance of the magnetic pump
The magnetic pump works under the specified environment, can exert its production efficiency performance, and can also improve its service life. 1. 2. In the maintenance of equipment, the magnetic field radiated by the internal and external magnetic steel components will cause magnetic field interference and even harmful effects on pacemakers, credit cards, computer disks, watches, precision instruments, meters, etc. 3., so,
Keep the above items away from the working environment to avoid possible safety impacts. When assembling the inner rotor and aligning the outer magnetic rotor axially, due to the magnetic attraction (especially the strong NdFeB or rare earth cobalt magnets), the user should take appropriate buffering measures to avoid jamming or pinching fingers and prevent work-related accidents. If it is an assembled magnetic pump equipment,
this problem does not exist, because the equipment structure is shielded by a magnetic circuit, so you can operate with confidence. 4. Be sure to cut off the power before the maintenance of the magnetic pump or cleaning the equipment to avoid electric shock. Warning: a. The motor used in the equipment shall be effectively and safely grounded by professional and technical personnel, and the permanent mark is 〨.. First of all, the working temperature environment is between minus
20 degrees and 40 degrees (the 5" Submersible Borehole Pumps daily temperature is no problem), the working humidity environment is 95%, and at the same time, the altitude of the working environment should not exceed 1 km (if there is an altitude For high demand, please explain to the manufacturer when selecting and ordering, and choose higher-performance equipment that can meet the demand). b
The head of a water pump refers to the height of the water pump
That is, pump head = suction head + pressurized water head. When choosing a water pump, be careful not to ignore it. Pump head = net head + head loss Net head refers to the height difference between the suction point of the pump and the high control point, such as pumping water from a clean water tank and sending it to a high Solar Panels for Solar Pumps water tank. It should be pointed out that the head marked on the nameplate refers to the head that the pump itself can generate, and it does not include the loss head caused by the frictional resistance of the pipeline water flow.
The head of a water pump refers to the height of the water pump that can lift water, usually expressed by H, and the unit is m.1MP, the inlet and outlet pipe diameters are the same and the pipeline resistance is negligible, the pump lift is equal to the lifting height. The net head refers to the height difference between the suction inlet of the clean water tank and the high water tank. Expressed by Q, the unit is m3/H, L/S. The lift of a centrifugal pump is different from the lifting height (lifting height).
Otherwise, there will be no water.2016-04-20 The flow rate of the water pump is also called the water delivery volume, which refers to the volume of water delivered by the pump per unit time. The head of the centrifugal pump is based on the center line of the impeller and consists of two parts.
The lifting height of the pump refers to the vertical height at which the pump sends liquid from a low place to a high place.. Only when the pump's inlet and outlet containers are at 0. The vertical height from the center line of the pump impeller to the water surface of the water source, that is, the height at which the pump can suck up the water, is called the suction lift, referred to as suction; The height of is called pressure head, or pressure range for short
The diaphragm pump is small in size and easy to move
The working point of the centrifugal pump is set based on water. Diaphragm pumps or some tests ensure that no impurities contaminate raw materials. 2. It is reliable and low-cost to use pneumatic pumps in flammable and explosive Clean water Submersible Pumps environments, such as the transportation of fuel, gunpowder, and explosives, because: first, it is impossible to generate sparks after grounding; second, there is no heat generation during work, and the machine does not It will overheat; third, the fluid will not overheat because the diaphragm pump agitates the fluid less.
Can be used as a mobile material transfer pump. When the pipeline is blocked, it will automatically stop to unobstructed. Because air is used as power, the flow rate is automatically adjusted with the change of back pressure (outlet resistance), which is suitable for medium and high viscosity fluids. 3. If it is used for a fluid with a slightly higher viscosity, it needs to be equipped with a reducer or a frequency converter, which greatly increases the cost. 6.
In addition, the diaphragm pump is small in size and easy to move, does not require a foundation, occupies a very small area, and is easy and economical to install.2019-09-02 The advantages of pneumatic diaphragm pumps are: 1. 4. This is because the shear force of the diaphragm pump is low and the physical impact on the material is small. In the treatment of hazardous and corrosive materials, the diaphragm pump can completely separate the materials from the outside world.
Diaphragm pumps can be used to transport fluids with relatively unstable chemical properties, such as photosensitive materials, flocculants, etc. The same is true for gear pumps.. 5. The pneumatic diaphragm pump can pass particles and has an adjustable flow rate. In places with harsh construction sites, such as wastewater discharge from construction sites and industrial mines, due to the large amount of impurities and complex components in the sewage, the pipeline is easy to be blocked, which will cause excessive load on the electric pump, and the motor will be easily damaged due to heat
A set of vacuum assist system can be added
The self-priming pump that has changed the self-priming height of the self-priming pump is added with a set of vacuum auxiliary device, then the self-priming ability of this self-priming China JET pumps factory pump is stronger, and the horizontal distance can pump up to about 150 meters, and the self-priming height The water can be pumped up quickly even at 9. The suction power of the suction pump is not large, and there is another situation that the mechanical seal of the self-priming pump is not tightly sealed, which makes it impossible to pump water..
A set of vacuum assist system can be added to the self-priming pump. What should I do if the suction power of the self-priming pump is not high? What should I do if the suction power of the self-priming pump is not high. What is the reason for the low suction of the self-priming pump? Conventional self-priming pumps include self-priming sewage pumps, self-priming centrifugal pumps, small stainless steel self-priming pumps and other self-priming pumps. In addition, the self-priming time is long, the water filling time is slow, and the self-priming height is high during the self-priming process.
In some cases, the self-priming pump can pump water up after the pump is filled up for the first time, but the pump stops several times. This is mostly due to the small pump cavity of the self-priming pump due to the tightness of the conventional self-priming pump inlet check valve after the pump is stopped.
The next time the pump is turned on after hours or one night, water must be added to the pump to pump up. These self-priming pumps use centrifugal pump impellers In addition, the small water storage volume of the pump body results in the low suction power of these types of self-priming pumps. 2. The water in the pump body is not very good, which causes the water in the pump body to flow backwards and part of the water is lost.2 meters. Therefore, the second start-up requires water to suck up the water
The inlet pipeline is too long the pipeline resistance is large
How to deal with the loud noise of the screw pump The noise of the screw pump is generally divided into two situations: one situation is that the old pipeline is replaced with a new pump; the other situation is that the new pipeline is installed with a new pump. Loud noise 1. The connection between the bottom plate and the foundation is not fixed. Elimination method 1. Try to adjust the alignment as much as possible.
The inlet pipeline is too long, the pipeline resistance is large, and the pump produces cavitation. For details, please consult the manufacturer's technical staff.. Loud noise and vibration (new pipeline) 1. 4. 3. Solution 1. 2. If not, consider connecting with a metal compensator. 3. 2. 5. The outlet valve is not opened and the pressure is suppressed.
The inlet flange surface is not in tight contact, leaking,
and the discharged oil has bubbles and is white. 4. The operating pressure does not match the set pressure value of the safety valve, causing frequent valve opening. The elastic rubber block on the old coupling is damaged. Contact the manufacturer's technical personnel to solve the problem.
If not, please return to the factory for repair. The pipeline is not properly supported, and the weight is pressed on the pump, generating extra force. Remedy 1. 6. The foot holes of the new pump, the bolt holes of the inlet and China drainage pumps manufacturers outlet flanges are not aligned with the pipe, and the external interference force is too large. 4. (With the help of vacuum gauge) 4. 5. Readjust the concentricity of the new pump and motor. Foreign matter is sucked in the pipe, which scratches the screw or bushing and other parts. The piping design is unreasonable. 2. The bottom of the inlet pipe should be cut to a 45 degree bevel to avoid bottom suction. Loud noise and vibration 1. The inlet valve is not opened, so pump down. 3. 6. 2
The flow rate of the outlet pipe of the pipeline sewage
The suction pipe is permanently China drainage pumps factory on the ground, and the outlet pipe is usually installed overhead due to the deep pump room, usually on a bracket along the wall. When the connection between the suction pipe and the pump needs to be tapered, an eccentric size head should be used.7m/s to avoid deposits in the tube.5m/s.
The flow rate of the outlet pipe of the pipeline sewage pump self-priming pump outlet pipe is generally not less than 1. In order to facilitate the removal of the air accumulated in the suction pipe, the horizontal part of the suction pipe should be slightly raised along the direction of the water flow, and the pipe slope can be 0. When two or more sewage pumps share one outlet pipe, the outlet pipe of each pump should be equipped with a valve, and a check valve should be set between the valve and the pump; if the pump uses a separate outlet pipe, and the outlet is free When flow,
check valve is generally not necessary, so the valve should be installed in the horizontal section as far as possible to prevent dirt from depositing on the valve disc.7m/s.4~0. When the outlet pipe of the pump is connected to the outlet main pipe (connecting pipe), it shall not be connected from the bottom of the main pipe to avoid siltation in the outlet pipe of the pump when the pump stops running. The arrangement of common pipelines and their accessories and the laying of common pipelines shall ensure the convenience of use and repair of the water pump.
The bell mouth is installed in the sump of the sump.. If the pump is not self-filling, it should be started with a vacuum pump or water ejector, and it is not allowed to set a bottom valve on the suction pipe. When two or more pumps share one outlet pipe and only one pump works ,
The main reasons for the submersible pump causing
Hot water circulating China JET pumps factory is suitable for energy, metallurgy, wood processing, chemical industry, textile, papermaking, and restaurants, bathrooms, hotels, boiler hot water pressurization cycle and urban housing heating cycle. This series of pumps are of horizontal structure, with integrated pump and machine, beautiful appearance and less floor space. Stainless steel horizontal pipeline pump product use: 1.. 4. The temperature of the medium used does not exceed 85°C. 4. The shaft seal adopts a mechanical seal, and the moving and static rings are made of hard alloy, which is resistant to wear, no leakage and long service life. 3.2020-03-26Stainless steel horizontal pipeline pump product features: 1.
The main reasons and treatment methods: ( 1) When the power cord is installed, the end is immersed in water or the power cord or signal line is damaged, causing water to enter; replace the cable or signal line, and dry the motor. (3) The outlet valve cannot be opened; check the valve and maintain it frequently. The main reason is that the check valve in the water outlet pipe or the flapper failed.. The disassembled seals and cables must not be used again. Feel free to expand. After all the pipelines are installed, the pressure strength and leakage test of the system should be carried out. (3)
The main reasons for the submersible pump causing excessive current, motor overload or overtemperature: (1) The working voltage is too low or too high; check the power supply voltage and adjust the output voltage. alarm and shutdown; before installation, check the quality of each sealing component; ensure that the end faces of each sealing component are in good contact during installation; check the phase-to-phase and ground insulation resistance of the motor and each alarm before operation Whether the sensing components of the system are intact.
The pump will reverse when the pump motor is powered off. If the above situation occurs during use, check whether the power phase sequence has changed. (8)
The use method and steps of the self-priming pump
When the China Surface Pumps Manufacturers is running, measures should be taken to prevent new debris from entering the pump suction pool. Make sure that the water level in the pump suction pool is above the allowable water level. If it is less than the specified value, vortex may be generated during pump operation and air will be carried into the pump, causing unit vibration and cavitation. At this time, the submerging depth of the pump should be increased. Check the rotation of the motor (from the motor to the pump, the impeller rotates counterclockwise). The cooling and lubricating water system of the unit must supply water to the unit before the pump starts. Check the packing tightness, not too tight or too loose.
At the same time, pay attention to whether the packing gland is evenly compressed. Install the outlet pressure gauge to detect the resistance of the system, because under normal circumstances, due to system changes, it is necessary to use valves to adjust the flow and pressure. In order to obtain a safe and satisfactory operation effect, a water hammer analysis should be carried out before driving.
The use method and steps of the self-priming pump After the start-up meets the previous requirements, the unit can be started in the following order: the exhaust valve is in working condition; the main pump is started. Never start the water pump under vacuum. Since the piping system produces backflow after the shutdown, the water causes a vacuum in the pump. Before the pump is restarted, there must be sufficient time and measures to let air enter the pump to eliminate the vacuum.
When starting and running the pump, consider avoiding water hammer. In order to obtain safe and satisfactory operating results, different piping devices adopt different starting methods. Using a two-speed electric valve, the pump and the valve are started at the same time, and the valve is fully opened within 15 seconds.
