Vertical sump pump parts inspection

What does the vertical blowdown pump part check need to be done? What is the inspection procedure for vertical sump pump parts?

1. Vertical sump pump mouth ring

Vertical sump pump mouth ring role is in the impeller and the pump shell to form a narrow, tortuous channel, to increase the flow resistance of the medium to achieve the purpose of reducing media leakage. The ring is also set to protect the main parts of the sump pump is not affected by the role of wear, wear in the mouth ring, you can repair or replace the new ring to restore the normal assembly gap, so economical and easy maintenance. The integrity of the mouth ring and its radial gap with the impeller asked the gap, in the demolition of the sump pump should first check. If the mouth ring has grooves or other defects or has ruptured, or gap over the required value, should replace the new mouth ring or repair the original mouth ring repair welding.

Vertical sump pump in operation, the corresponding ring and impeller impeller circumference is caused by wear while increasing the gap exceeds the specified value, because the new ring diameter should be the impeller inlet diameter to the preparation of the impeller and the ring between the ring Radial clearance requirements. In the repair process, the gap to a small point in order to improve the working efficiency of sump pumps and extend the use of time.

Vertical sump pump ring repair welding steps are as follows:

Brush the dirt on the mouth of the vertical blowdown pump.

With the mass fraction of 5% hydrochloric acid, activated again.

Into the temperature of 90 ℃, l0% mass fraction of caustic soda in the dip, and then placed in clean water, 90 ℃.

4) repair welding alloy. Preheat the mouth ring to about 100 ℃, with the appropriate welding ring welding alloy on the original ring, with the same alloy with the original alloy pre-cast into the electrode, along the circumference of the circular or longitudinal direction of a road even welding up (not repeated Re-welding). After welding, can be machined to the required standard size.

2. Vertical sump pump impeller

Replacement of the impeller of the blowdown pump Impeller that has been used may cause some damage and should be replaced. Impeller surface cracks. Impeller surface due to corrosion, erosion or cavitation to form more holes. Due to erosion caused by impeller cover and leaves thinning, affecting the mechanical strength. The impeller of the mouth ring hub more serious partial grinding phenomenon without repair value.

The above is the vertical sump pump parts inspection steps. If you need to replace the vertical sump pump parts, moving parts Shenlong sump pump parts.

Characteristics of Pipeline Sewage Pump

Pipeline sewage pump is the use of advanced technology at home and abroad to develop a successful energy-efficient sewage pump products, the pump has a non-clogging design and efficient features, hundreds of enterprises at home and abroad to adopt. The following describes the characteristics and application of pipeline sewage pump knowledge:

1, GW pipe sewage pump should be carefully checked before use fasteners loose or fall off, pipeline sewage pump in the transport, storage, installation process there is no damage to parts or components.

2, GW pipe sewage pump starts, the rotation direction from the inlet as a counter-clockwise rotation, if the pump reversal, simply wire the line in any two-phase wire can be adjusted to the location.

3, GW sewage pumps and piping should have their own pieces of support, not the role of pipeline weight on the pump.

4, GW sewage pump discharge piping such as installed check valve should be installed in the valve between the outside.

5, pipeline sewage pump for the convenience of maintenance and use of safety, in the pump inlet and outlet piping on the installation of a control valve and the pump outlet near the installation of a pressure gauge to ensure that the pump in the rated head and flow range to ensure that Pump the normal operation, improve the service life of the pump.

6, GW sewage pump pump shall not be long-term low-lift state of the pump running (under normal circumstances not less than the rated head lift 70%), it is best to control the proposed use of the lift within the pump to overload Burn the motor.

7, GW pipeline pump should not run in the cavitation conditions, in order to improve the service life of the pump, the pump is running without liquid, or easily damaged mechanical seals.

8, GW pipe drainage pump parts made of cast iron, open-air installation in the winter, should pay attention to prevent the break, the temperature is particularly low, it should be insulated.

Pipe-type sewage pump to install the pump must be tightened anchor bolts, so as not to start the vibration of the pump performance.

9, pipeline-type sewage pump When the high-temperature liquid pipeline in order to not bear the heat pump tube deformation, pump seat foot bolts should not be fixed, when the pipeline system in the thermal expansion and contraction, so that pump and pipeline Move together.

10, GW-type pipeline sewage pump inlet and outlet connection flange according to 684216-84 standard design, pipe flange should be accompanied by the same provisions.

11, pipe-type sewage pump installed after the toggle pump shaft, the impeller should be no friction sound or stuck phenomenon, otherwise the pump should be open for inspection and maintenance.

12, GW-type pipeline sewage pump should be installed before checking the water pump and motor fastening and whether the injury.

The above is the characteristics of the pipeline sewage pump, to further understand, move the pace of sewage pump area.

Submersible / mixing / non-blocking / self-priming sewage pump advantages

Sewage pump is a kind of pump and motor, and at the same time into the liquid work under the pump products, and the general horizontal pump or vertical sewage pump, compared to small footprint, easy installation and maintenance, continuous operation for a long time, The light weight of the components lasts longer than the average pump. There is no cavitation damage and irrigation water and other issues. Vibration and noise, the motor temperature is low, no pollution to the environment.

Xiaobian below for everyone to explain in detail, the advantages of the four sewage pumps!

 The advantages of submersible sewage pump

(1) sewage pump vibration and noise, the motor temperature increase slowly, green, no pollution to the environment.

(2) continuous operation of sewage pump for a long time: submersible sewage pump and motor because the coaxial pump shaft is short, light weight rotating parts, so bear the load on the bearing is relatively small, longer life than the general sewage pump.

(3) compact, small footprint: submersible sewage pump because it is submerged into the liquid work. It can be directly installed in the sewage pool, without the construction of a special sewage pumping station used to install the sewage pump and motor, you can save a lot of land and infrastructure costs.

(4) there is no cavitation damage and irrigation water and other issues. In particular, the latter point to the operator to bring a great deal of convenience.

(5) easy installation and maintenance: a small submersible sewage pump can be free to install, large submersible sewage pumps are generally equipped with automatic coupling device can be automatically installed, installation and maintenance quite convenient.

Submersible sewage pump more and more widely used for a variety of industrial wastewater, sewage, liquid feed, construction site drainage, so more and more submersible sewage pump by the majority of enterprises attach importance to sewage pumps. Gradually walk in the front of the sewage industry.

Two: automatic mixing sewage pump advantages

(1) When the automatic mixing sewage pump operation, automatic mixing bottom sediment, completely prevent the deposition of dirt, without manual cleaning.

(2) a unique impeller design, with fiber, debris chopping and tearing function.

(3) the use of external circulation cooling system, sewage pump low water level operation, reduce the motor starting frequency, to extend the motor life.

(4) National Standard Atlas recommended products.

(5) Shanghai high-tech achievements into products.

Automatic mixing sewage pump is in the ordinary sewage pump on the basis of the use of automatic mixing device, the device with the motor shaft rotation, resulting in a strong mixing force, the sediment pool sediment into suspension, inhalation pump discharge is Significant of the advanced nature and the use of environmentally friendly products.

Three: the advantages of vertical non-clogging sewage pump

(1) safe and reliable to reduce maintenance costs: Balanced check of the rotor components and reasonable bearing arrangement effectively balance the radial and axial force of the pump to ensure that the unit can long-term stable operation, and has a small vibration , Low noise.

(2) over-current capacity: smooth large flow channel, a special anti-blocking impeller design to ensure efficient and non-blocking pump operation.

(3) double seal, double protection: double machine series configuration, the real double protection, to ensure motor safety.

LW vertical sewage pump working conditions

Flow rate: 2 ~ 1500 m 3 / h

Head range: 3 ~ 45m

Rated speed n: 970 ~ 2900r / min

Medium temperature: -15 ℃ ~ +60 ℃

Medium density: ≤1.3 × 10 3 kg / m 3

PH value of the medium: 5 ~ 9

System maximum working pressure: ≤ 0.6Mpa

GW pipeline pump; GW sewage pump

GW pipeline sewage pump is the use of advanced technology at home and abroad to develop a successful energy-efficient sewage pump, widely used in high-rise buildings, long-distance pipeline pressurized water or other media use, but also transport containing particulate fiber sewage, Water pump, filter flushing and condensing circulating pump.

Vertical sewage pump, can be mobile, can also be fixed for the construction, irrigation and drainage, enterprises and institutions in the process of sewage, pumping and discharge, in addition to the application of sewage, but also for hydrophobic pumps, pulp pumps, Irrigation and so on.

Four: self-priming sewage pump advantages

(1) sewage capacity: a special anti-blocking impeller design to ensure that the pump efficient and no clogging.

(2) energy efficient: the use of excellent hydraulic model, the efficiency of the pump than the average high 3 to 5%.

(3) self-priming performance: self-priming height of 1 m higher than the general self-priming pump, and self-priming time is shorter.

(4) mechanical seal with a new type of grinding Sassafras deputy, and long-term oil into the room to run.

(5) the overall structure of compact, small size, dry sound small, energy-saving effect is remarkable, easy maintenance, user-friendly replacement.

(6) automatic control cabinet according to the required liquefaction changes, automatic control of the pump hyperactivity and stop, without special care, the use of extremely convenient.

(7) according to user needs with the installation method: it to the installation, maintenance, great convenience, people do not have to enter the sump.

(8) The pump coupled with the outdoor motor, you do not need to build the pump house, can be installed directly with the outdoor use to save money.

Self-priming non-clogging sewage pump is suitable for chemical, petroleum, pharmaceutical, mining, paper, fiber, pulp, textile, food, power plant and municipal sewage works, public facilities sewage,

Submersible sewage pump and booster pump distinction

Submersible sewage pumps include booster pumps, but the booster pump is not necessarily a submerged sewage pump. In other words: the liquid sewage pump is a booster pump, but the booster pump is not necessarily a liquid sewage pump. So, the difference between liquid sewage pump and booster pump in the end what?

Before deciding on the subsea sewage pump and the booster pump, the definition of the submerged sewage pump and booster pump must be repeated. The so-called liquid sewage pump refers to the first irrigation, then use the words. Do not re-irrigation, and start running on it, and whether the self-priming pump under the impeller is immersed in water after the shutdown, liquid sewage pump is because there is a unique pump chamber structure can guarantee that after each stop impeller Can be immersed in the water to ensure its self-absorption; booster pump is the liquid can be piped to provide additional pressure pump collectively, does not refer to a certain type of pump, booster pump can be a pipeline pump, centrifugal Pump, sewage pump, liquid sewage pump, multi-stage pump and other types of pumps. If you want to self-priming booster pump to achieve self-absorption effect (the pump is located above the pool), you can add the pump in the bottom of the suction valve can be.

The above is the difference between liquid sewage pump and booster pump, to further understand, move step Shenglong  sewage pump model area.

Installation Steps of Sump Pump

In the eyes of the layman, the pump is much safer than other machines. In practice, however, pumps can create a number of safety incidents if they are not handled and managed properly. Sump drainage method, that is, in the excavation process, set in the pit at the end of the pit, and around the bottom or the central excavation ditch, the water flow into the catchment, and then use the sewage pump (submersible sewage pump ) Away. Then the stagnant water pump sewage pump installation steps which? Sump pump how to install?

First, the sump pump installation problems

1, the basement drainage pits drainage pump installation of the calculation, the installation of drainage pumps, control box installation, level installation, electrical piping, valve flange installation, drainage pipe installation.

2, sump drainage pump installation The set of sewage pump installation project, there is no single-stage centrifugal or impurity pump. Centrifugal pump and centrifugal impurity pump is the difference between the different media delivery. For example, water supply pipes, HVAC pipes, fire pipes are generally used in centrifugal pumps, papermaking process generally use impurity pump.

The sump shall be provided with centrifugal impurity pump, including pump installation, float level gauge installation, valve, soft joint, pressure gauge attachment installation, pipe connection, electrical piping and control box installation.

Second, the catchment sewage pump installation steps:

1, the preparatory work before installation, horn and so on.

2, the installation of the pump to determine the height of the suction pipe requires strict sealing, can not leak, water leakage.

3, the pump in place and alignment.

4, the pump level adjustment and the initial level of the search.

5, pump anchor bolt grouting and permanent horn placement.

6, pump to find the level and coupling center.

Installation and operation steps of tube sump pump

Tube sump pump how to install? What is the operating procedure of the sewage pump? Today, Shenlong APK sewage pump Xiaobian to introduce the installation and operation of tube sewage pump steps:

1. tube sewage pump installation

tube pump installation should meet the following requirements:

1) with the installation of sewage pump pipe foundation, the installation of pipe sewage pump should be flat so that the flange plane perpendicular to the ground.

2) installation of piping, inlet and outlet pipes should have their own frame, not as a pump pipe support, so as to avoid excessive pressure to break the flange.

3) in outdoor use, should be located in the tube sewage pump on the rain cover.

4) The pump outlet should be installed pressure gauge and gate valve, the import should be used depending on the circumstances.

5) tube sewage pump installation height, pipe length, diameter, flow rate should be consistent with the calculation results, long-distance transport should take a larger diameter to reduce losses.

6) When using, if the inlet of the sewage pump of the tube has bigger indenter, the pressure capacity of the pump body should be considered. If necessary, the pump with bigger pressure bearing capacity can be used.

2. tube sewage pump operation steps

tube sewage pump operation can be carried out according to the following steps:

1) irrigation tube sewage pump (set to self-irrigation can be free of irrigation pump), while rotating open the valve, the tube sewage pump, especially the mechanical seal cavity of the air excluded, so as to avoid mechanical seal water loss and burn.

2) Close the gate valve on the discharge line.

3) Jog the motor to check whether the direction of rotation is correct and whether the rotation of the pump is flexible.

4) Turn on the power to start the motor, when the pump reaches the normal speed, gradually open the drain valve on the tube and adjust to the required conditions. It should be noted that, in the discharge valve closed on the case, the continuous operation of the pump should not be more than 3min in order to avoid water temperature rise caused by damage to pump parts.

how to do about submersible sump pump motor water?

Submersible sump pump motor system is the power system of the entire device for the operation of submersible sump pump to provide power support, while the working environment of submersible sump pump in the liquid below, compared to the traditional pump, the working environment is more special, On its motor system waterproof performance put forward higher requirements. Once the motor system water, there will be short-circuit unit, or even cause the entire motor burned, affecting the normal fluid transport work, so to strengthen the submersible sump pump motor water fault processing is essential.

Structure Analysis of Motor Seal and Protection Device for Submersible sump Pump

The function of the submersible sump pump sealing system is to maintain the sealing performance of the whole submersible sump pump and protect the motor unit of the submersible sump pump from erosion and destruction of the debris and water. Its main structure is cable sealing, component sealing and bearing sealing, sealing The device has a good mechanical strength, the corrosion of the material has a good resistance, so as to provide a key component of the protective effect. Submersible sump pump with automatic protection device to avoid submersible sump pump at high temperatures for a long time to run. When the operating temperature exceeds the set temperature for a certain period of time, the temperature control overheating protection device will control the motor device to stop running until the winding temperature decreases, and then start the operation. At the same time the probe submersible sump pump has two protection motor, two motors directly connected to the control center of the control cabinet, when the submersible sump pump seal water leakage phenomenon, the water intrusion into the oil chamber closed system, the oil Cavity resistance rapidly decreased, then the submersible sump pump motor leakage protection system will issue an alarm, and automatically remove the submersible sump pump running power, waiting for the next step maintenance and maintenance. Submersible sump pump motor water setting is essential, submersible sump pump can detect the seal of the motor to assess whether the infiltration of water. When the water into the bearing next to the cavity inside the mechanical seal failure will directly lead to floating float position, which touches next to the float switch, and cut off the sump pump running electric device, issued the corresponding alarm signal.

Cause Analysis of Water Intake Failure of Submersible sump Pump

As the submersible sump pump in the water work, a long time running will lead to the submersible sump pump motor seal system failure, resulting in motor water failure occurred. The following detailed analysis of submersible sump pump motor water failure causes:

2.1 cable breakage

Cable damage is the main cause of motor water failure, due to the installation of submersible sump pump steel cages of the way, the installation is complete, the distance between the submersible sump pump and the covers have a longer distance, in order to provide the sump pump Electric power and power, you need to use cable underwater installation, submersible sump pump cable fixed to the chain hanging down to the bottom of the submersible sump pump, the chain with a flange hook to be fixed, but this fixed way will lead to chains Of the tension is difficult to control, while the quality of heavy cable, when the submersible sump pump running, the cables and chains will be friction, resulting in damage to the cable insulation, water will enter the submersible pump through the cable pump motor , Serious will cause the submerged sump pump burned.

2.2 integrated protection cabinet improper protection

Submersible sump pump is divided into different structures, in the upper part of the submersible sump pump is the wiring room, wiring room at the bottom of the groove is set up a water tank, while installing a floating switch, when the water into the wiring room, it will Directly back to the stagnant tank, the tank height of the water will rise to trigger a floating alarm switch, the motor water alarm signal, which plays a protective role for the motor. But some of the submersible sump pump wiring room float switch height is set properly, the height of water is not enough to inspire the alarm device, but the water will cause the entire electrical system short circuit, or even burn.

2.3 submersible sump pump seal damage

Submersible sump pump for a long time in the water, while its transport medium is more complex, which increases the probability of damage to its sealing device, when the suspended matter in the water medium more, or its corrosive strong, long Time to run will cause serious damage to the pump seal layer, causing leaking phenomenon. Moreover, more sediment in the water, the submersible sump pump impeller fouling serious, the motor bearing load increases, the bearing and box outside the skeleton oil seal between the friction increases, resulting in the phenomenon of water intrusion. In addition, submersible sump pump seal installation is not correct or improper installation of the selection will result in reduced seal life of the seal to accelerate its damage.

3 submersible sump pump motor failure water treatment

Submersible sump pump motor water will cause the operation of submersible sump pump failure, if the submersible sump pump internal water supply alarm system failure, it will lead to submersible sump pump motor burned, the following detailed analysis of submersible sump pump motor water failure Approach:

3.1 improve the submersible sump pump cable fixation

Submersible sump pump fixed way often used iron chain bundled way, but this fixed way affects the life of the cable and the use of stability, thus reducing the wear and tear of the cable insulation is essential. The current cable fixed through the use of pipe mode, the use of galvanized pipe as a cable laying, for example, a submersible sump pump cable set, the use of cable clamp fixed method, according to the use of submersible sump pump on-site conditions, to produce a can open and close Of the cable fixture, and welding the corresponding fixture fixed mold, the cable directly through the galvanized pipe fixture into the submersible sump pump, the fixed mode to improve the stability of the cable, while its simple structure, possession of the Space is small, to improve the protection of the cable, reducing the degree of wear and tear of the cable.

3.2 submersible sump pump seal inspection and replacement

Submersible sump pump seal is the key to avoid motor water, so to strengthen the submersible sump pump sealing inspection, the use of submersible sump pump will cause a long time to reduce the elasticity of the phenomenon, to strengthen the quality of sealing ring inspection, timely Replace the seals with quality problems. Especially in the work environment is more harsh water quality, to strengthen the mechanical seal components of the inspection frequency, for the occurrence of more frequent water alarm key parts, to focus on the sealing inspection. When the sealing coil of the submersible sump pump wears out, it can be exchanged directly. If the elastic spring of the fastening spring is reduced, it should be replaced with the same type of spring and fixed with wire. Moreover, in the replacement of sealing applications, should be used asbestos rope twine, and compacting its bolt fixed to improve the seal sealing performance, to avoid motor water failure.

3.3 timely replacement of submersible sump pump leakage protection components

When the submersible sump pump failure occurs when the motor water, it is necessary to cut off the motor power, to avoid further damage to the submersible sump pump, timely replacement of submersible sump pump leakage protection components to improve the detection of leakage signal accuracy. Float switch sensitivity is not high likely to cause serious water leakage tank wiring compartment, while susceptible to oily substance stuck, loss of detection, it is necessary to use a more simple structure, the higher the sensitivity of the water leakage probe, the leak detection probe has a higher detection sensitivity , Even if the trace of water into, you can also send an alarm signal in time, and cut off the power to avoid submersible sump pump by greater structural damage.

3.4 to strengthen the handling of the transport medium

The transport medium will be submersible sump pump sealing device caused some damage, while different transport medium damage to the submersible sump pump is different from more or more corrosive suspension of the transport medium is likely to cause submersible sump pump motor seal device Damage, so the poor water quality should be properly treated, the correct choice of the type of submersible sump pump to ensure that the motor shaft and the external oil seal installed correctly, to avoid the loss of elasticity of the motor seal leakage caused by the motor. To add the appropriate detergents, regularly clean up the water body of the dirt, and strengthen the monitoring of water quality and maintenance of submersible sump pump work to improve the submersible sump pump motor protection system against water effects.

4 Summary

In short, the submersible sump pump in a wide range of applications within the industry, but the submersible sump pump working environment in the water, and its commitment to the workload of large, long hours of work will cause its load overload, resulting in submersible sump pump motor Water failure, affecting its normal operation. Therefore, it is necessary to strengthen the submersible sump pump failure treatment, to improve the cable fixation, regular inspection and replacement of seal protection, and enhance the accuracy of water testing, while regular maintenance and inspection to improve the life of submersible sump pump life , To ensure the normal production work order. [Hundreds of manufacturers recommend the quality of the motor power of the Shenlong Submersible sump pump]