IH type stainless steel chemical centrifugal pump

IH typeStainless steel chemical centrifugal pump】Product Introduction:

IH type stainless steel chemical industrycentrifugal pumpIt is a single-stage single suction cantilevercentrifugal pumpThe standard IS02858-1975 (E) is used to mark the rated performance points and dimensions of the F-typeCorrosion-resistant pumpUpgraded energy-saving products, this series of chemical productscentrifugal pumpDesigned based on the performance, technical requirements, and testing methods of energy-saving pumps, it is one of the energy-saving pump products promoted in China. Zhejiang * Pump Industry Co., Ltd. collaborated with domestic water pump experts to design and develop excellent hydraulic models in China. Provide suction and delivery of clean water and liquids with physical and chemical properties similar to water without solid particles. Widely used in industrial, agricultural, urban drainage, fire water supply, etc. For the transportation of corrosive media or media with physical and chemical properties similar to water between 20 ℃ and 105 ℃.

IH typeStainless steel chemical centrifugal pump】Model meaning:

IH typeStainless steel chemical centrifugal pump】Product features:

IH type stainless steelchemical pumpIt has the advantages of reasonable and reliable hydraulic performance layout, small size, light weight, good anti cavitation performance, low power consumption, easy use and maintenance, and high work efficiency. IH type single-stage single suctioncentrifugal pumpAs a horizontal structure, its structural design can basically meet the installation of all pipelines.

IH typeStainless steel chemical centrifugal pump】Rotation direction of pump:

IH type stainless steelchemical pumpDriven directly by the motor through an extended coupling, it rotates clockwise when viewed from the motor end.

IH typeStainless steel chemical centrifugal pump】Performance range:

Flow Q: 6.3~400m3/h Head H: 5~132m
Speed n: 2900, 1450r/min with power: 0.55~110KW
Imported diameter: 50-200mm, maximum working pressure: 1.6Mpa
IH typechemical pumpThere are 29 basic types, of which 22 dual speed (2900, 1450r/min) have been modified by cutting the impeller diameter of two types A and B, reaching 112 specifications.

IH typeStainless steel chemical centrifugal pump】Usage conditions:

IH type stainless steelchemical pumpThe maximum working design pressure is 1.6 megapascals. The temperature of the medium shall not exceed 80 ℃. When needed, a double end sealed cooling device can be used to transport media with a temperature range of 20 ℃ to+280 ℃.
Note: Users can choose different materials for the main components of the pump's overcurrent section based on the corrosiveness level of the conveyed medium.

IH typeStainless steel chemical centrifugal pump】Pump shaft seal type:

Packing seal: The pump cover is equipped with a packing box, which uses soft packing seal. The packing box can be filled with water under certain pressure for sealing cooling, lubrication, and cleaning.
Mechanical seal: There are two types of mechanical seals: single end mechanical seal and double end mechanical seal. A certain pressure of water is introduced into the sealing chamber to flush and rub the two end surfaces, while also providing cooling effect.
The sealing type of the pump adopts packing seal or mechanical seal, which can be applied by the user according to their needs. At the same time, it is allowed to use shaft seal types that are suitable for the sealing cavity size and other structures specified in ISO3069, such as mechanical seals with corrugated pipes and impeller seals.
IH typechemical pumpThe temperature of the conveying medium ranges from -20 ℃ to 105 ℃. If necessary, a double end sealed cooling device can be used to transport the medium at a temperature of 20 ℃ to+280 ℃. Suitable for industries such as chemical, petroleum, metallurgy, power, papermaking, food, pharmaceuticals, environmental protection, wastewater treatment, and synthetic fibers for transporting various corrosive or non polluting media similar to water.

IH typeStainless steel chemical centrifugal pump】Structural features:

IH type stainless steelchemical pumpThe pump cover is fixed on the middle bracket through a stopper, and then clamped in the middle through the connection between the pump body and the stopper of the middle bracket. The pump body is axial suction, radial discharge, foot supported, and can be directly fixed on the base. The suspension components are fixed to the middle bracket through a stopper and supported on the base by the suspension bracket. For the convenience of disassembly, an extended coupling has been designed, which allows for maintenance without disassembling the inlet and outlet connecting pipelines, pump body, and motor. Simply remove the middle connecting piece of the coupling to exit the rotor component for maintenance. This is a commonly used structural form.
stainless steelchemical pumpRotation direction: The pump is directly driven by the motor through an extended coupling, and when viewed from the motor end, it rotates clockwise.

IH typeStainless steel chemical centrifugal pump】Scope of application:

IH type stainless steelchemical pumpSuitable for industries such as chemical, synthetic, metallurgical, pharmaceutical, papermaking, petroleum, chemical, food, beverage, brewing, etc. It can also be used for agricultural irrigation and drainage. IH type pumps are used to transport chemical and corrosive liquids. Used for conveying clean water or other liquids with physical and chemical properties similar to clean water, convenient and reliable to use.

IH typeStainless steel chemical centrifugal pump】Performance parameters:

IH typeStainless steel chemical centrifugal pump】Installation:

1、 IH type stainless steelchemical pumpWhether the installation is reasonable has a significant impact on the normal operation and service life of the pump, so it must be carefully calibrated before installation, and the appearance and installation dimensions of the pump must not be hasty.
2、 It must be ensured that the pump does not exceed its allowable cavitation allowance during operation. The suction height (or backflow height) of the pump must be determined based on the cavitation allowance characteristics of the pump, the resistance loss characteristics of the pipeline, and the suction liquid level pressure of high-temperature water.
1. When using the pump suction, a bottom valve should be installed on the suction pipeline, and a soil liquid screw hole or valve should be set on the outlet pipeline for filling the pump before starting.
2. When using a pump for backflow, valves and filters should be installed on the suction pipeline to prevent debris from entering.
3、 The suction and discharge pipelines should have additional brackets and cannot be used as supports.
4、 The installation location should be convenient for patrol inspection and maintenance.
5、 IH type stainless steelchemical pumpInstallation sequence:
1. Place the unit on a foundation with embedded anchor bolts, and place pairs of wedge pads between the base and the foundation for alignment.
2. Release the coupling. Place a spirit level on the pump shaft or base respectively, adjust the gasket, align the level of the unit, and tighten the anchor bolts appropriately to prevent movement.
3. Pour concrete into the base and anchor bolt inspection holes.
4. After the concrete dries up, the anchor bolts should be tightened and the flatness of the pump shaft should be rechecked.
5. After connecting the pipeline and determining the direction of rotation of the prime mover, connect the coupling and double check the concentricity of the shaft. Measure the difference between the outer circumference of the coupling, which should not exceed 0.1mm. The gap between the two coupling end faces should not exceed 0.3mm between the largest and smallest within one week
6. After 3-4 hours of actual operation of the unit, conduct a final inspection. If there are no defects, the installation is considered qualified.

IH typeStainless steel chemical centrifugal pump】Preparation before starting:

1. IH type stainless steelchemical pumpBefore starting, clean the pump and the site thoroughly.
2. Check if the lubricating oil level in the bracket is appropriate (the oil level is about 2mm from the centerline of the oil level gauge) and if the oil level gauge is intact.
3. Before connecting the coupling, check the direction of the prime mover and connect it to the pump's direction arrow *.
4. After installing the mechanical seal or packing and coupling, the pump shaft can be manually rotated without any rubbing, and the protective cover of the coupling should be installed properly.
5. IH type stainless steelchemical pumpWhen using with suction, the pump should be filled or evacuated before starting; When using the pump in reverse flow, fill the pump with the conveyed liquid before starting, remove the air from the pump, and then close the gate valve of the discharge pipe.
6. IH type stainless steelchemical pumpBefore starting, check if the basic screws are loose. Whether the gland is skewed, and the supply of lubricating oil and cooling water.

IH typeStainless steel chemical centrifugal pump】Start, Run, and Stop:

IH type stainless steelchemical pumpstart:
1. Close the inlet and outlet pressure (or vacuum) gauges and outlet valves, and if there is a bypass pipe, it should also be closed at this time. Start the motor (jog and confirm the correct direction of the pump before starting the formal operation). Then turn on the inlet and outlet pressure (or vacuum) gauges. When the pump reaches normal speed and the instrument indicates the corresponding pressure, slowly open the outlet valve and adjust it to the desired working condition. When the discharge pipeline is closed, the continuous working time of the pump cannot exceed 3 minutes.
2. IH type stainless steelchemical pumpDuring the starting process, attention should be paid to the power reading of the prime mover and the vibration of the pump at all times. The vibration number should not exceed 0.06 millimeters, and the measuring part is the bearing seat.
3. IH type stainless steelchemical pumpSealing condition: The mechanical seal should have no leakage or heating phenomenon, and the packing seal should be in a continuous dripping state.
IH type stainless steelchemical pumpfunction:
1. Regularly check the heating condition of the pump and motor (the temperature rise of the bearings should not exceed 75 ℃) and the oil supply condition of the oil level gauge. Generally, after every 1500 hours of operation, the lubricating oil should be replaced completely.
2. Do not use suction valves to regulate flow to avoid cavitation.
3. IH type stainless steelchemical pumpIt is not advisable to operate continuously at a flow rate lower than 30% of the design flow rate. If continuous operation is necessary under this condition, a bypass pipe should be installed at the outlet to discharge excess flow.
4. Pay attention to whether there is any noise during the operation of the pump. If any abnormal state is found, it should be eliminated or stopped for inspection in a timely manner.
IH type stainless steelchemical pump停止：
1. Slowly close the gate valve of the discharge pipeline (if the pump is used in reverse flow, also close the gate valve of the suction pipeline), and turn off the switches of various instruments.
2. Cut off the power supply
3. If IH type stainless steelchemical pumpWhen using external drainage for sealing, the external drainage valve should also be closed.
4. If IH type stainless steelchemical pumpWhen the ambient temperature is below the freezing point of the liquid, the liquid in the pump should be drained to prevent freezing and cracking.
5. If IH type stainless steelchemical pumpLong term parking is not necessary. In addition to draining the corrosive liquid inside the pump, all components should be disassembled and cleaned, especially the sealing chamber. The pump should be disassembled, cleaned, and reinstalled. In addition to applying oil and rust prevention treatment and sealing the pump inlet and outlet, regular inspections should also be conducted.

IH typeStainless steel chemical centrifugal pump】Disassembly and assembly:

IH type stainless steelchemical pumpdisassemble:
Due to the use of an extended coupling, there is no need to disassemble the inlet and outlet pipelines, pump body, and motor when disassembling the pump. Only the middle coupling in the extended coupling needs to be removed to disassemble the rotor components for repair and maintenance.
1. Remove the drain pipe plug on the pump body and the drain pipe plug on the suspension body, and drain the liquid inside the pump and the lubricating oil inside the suspension body. (Note: If there are additional pipelines on the pump, they should also be removed).
2. Disconnect the connection between the pump body and the intermediate bracket, and remove all rotor components such as the intermediate bracket, suspension components, and pump cover from the pump body together.
3. Remove the impeller nut, remove the impeller and key.
4. Remove the pump cover, coaxial sleeve, mechanical seal end cover, and mechanical seal from the shaft together. Be careful not to slide the shaft sleeve relative to the pump cover, and then remove the mechanical seal end cover. Remove the mechanical seal together with the shaft sleeve, and then disassemble the shaft sleeve and mechanical seal.
If the seal uses packing, the shaft sleeve can be directly removed from the pump cover, and then the packing cover, packing, and packing ring can be removed in sequence.
If the seal adopts a special structure, attention should be paid to different disassembly methods.
5. Remove the middle bracket and suspension bracket.
6. Remove the pump coupling and key.
7. Remove the dust discs at both ends of the suspension body and the front and rear covers of the bearings, and then remove the shaft and bearings from the suspension body together.
8. Remove the bearing from the pump shaft.
IH type stainless steelchemical pumpAssembly: Reverse the disassembly procedure.

IH typeStainless steel chemical centrifugal pump】Attention:

IH type stainless steelchemical pumpDifferent forms of mechanical seals can be installed according to different usage conditions, such as internal single end balanced and unbalanced, double end balanced and unbalanced, external mechanical seals, etc. According to the different sealing types selected, their usage methods and precautions also vary. For specific information, please refer to the mechanical seal installation and use manual, GB3215-82 "For use in refineries, chemical and petrochemical processes"centrifugal pumpGeneral technical conditions', below are only a few general precautions to be taken.
1. As mechanical seals are generally suitable for use in clean, non suspended media, newly installed pipeline systems and liquid storage tanks should be thoroughly flushed to prevent solid impurities from entering the mechanical seal end face and causing seal failure.
2. When using mechanical seals in media that are prone to crystallization, attention should be paid to frequent flushing. Before restarting after parking, clean the crystals on the mechanical seal.
3. When disassembling mechanical seals, one should be careful and not use hammers, irons, or other tools to strike them, in order to avoid damaging the sealing surfaces of the dynamic and static rings.
If there is dirt that cannot be removed, try to remove the dirt, rinse it clean before disassembling to avoid damaging the sealing components.
Before installing the mechanical seal, all sealing components should be checked for failure or damage, and if so, they should be repaired or replaced.
6. The relative friction sealing surface between the moving ring and the stationary ring should be strictly inspected, and no minor scratches, bumps, or other defects are allowed. All other components, including the pump body, impeller, sealing chamber, etc., should be rinsed thoroughly before assembly, especially the dynamic and static ring end faces. They should be carefully wiped clean with a clean, soft cloth or cotton yarn, and then coated with a layer of clean grease or engine oil.
7. During assembly, attention should be paid to eliminating deviations. When tightening screws, they should be tightened evenly to avoid deviation and seal failure.
8. Adjust the compression amount of the sealing spring correctly. After the pump is installed, when manually pulling the rotor, you should feel that the sealing spring has a certain compression amount and can rotate quickly and flexibly without feeling tight. If it feels too tight or cannot be moved, it should be loosened appropriately.
9. For mechanical seals with external flushing, the flushing wave should be turned on before starting to fill the sealing chamber with sealing liquid. When parking, stop the pump first and then turn off the sealing flushing liquid.