IHStainless steel centrifugal pump

1、 Product Overview:

IHType pump is a horizontal single-stage single suction centrifugal pump for clean water, which is used to suck and deliver clean water and liquids with physical and chemical properties similar to water without solid particles. It is widely applicable in industry, agriculture, urban areas, drainage, fire water supply, etc.
IHType pump system according to international standardsISO2858The technical standards for the specified performance and size design are close to international standards. It is one of the energy-saving pump products promoted in China.
The pump has a simple structure, reliable performance, small size, light weight, good corrosion resistance, low power consumption, and easy use and maintenance.
IHStainless steel centrifugal pumps have wide versatility and a full range of applications140Specifications, but only four types of shafts are used; The same specification of shaft, bearings, shaft seals, impeller fasteners, etc. can be interchanged; There are only four types of suspended prices for the entire series of pumps.
Pump speed is divided into2900and1450change/Divided into two types.
The performance is as follows: 2900change/divide 1450change/divide
Maximum traffic: 240cubic meter/hour 400cubic meter/hour Maximum total head: 125rice 55rice
Maximum speed: 3500change/Divided (for)60When adjusting the power supply, the diameter of the impeller decreases completely
Maximum operating temperature 160Haoshi Du
Allow suction pipeline pressure 0.3MPa.Maximum operating pressure of the pump1.6MPa

2、 Scope of use:

1Suitable for urban environmental protection, construction, fire protection, chemical industry, pharmaceuticals, dyes, printing and dyeing, brewing, electricity, electroplating, papermaking, petroleum, mining, equipment cooling, oil tanker unloading, etc.
2Suitable for clear water, seawater, chemical media liquids with acid and alkalinity, and slurries with general paste like properties(Viscosity≤100Lipper, with a solid content of up to30%below).

3、 Structural diagram:

4、 Performance parameters:

5、 Start, Run, and Stop:
1Preparation before starting
⑴Before starting, clean the pump and the site thoroughly.
⑵Check if the lubricating oil level in the bracket is appropriate (the oil level is at the centerline of the oil level gauge)2mmIs the oil level gauge intact on both sides.
⑶Before connecting the coupling, check the direction of the prime mover and align it with the pump's direction arrow before connecting the coupling.
⑷After installing the mechanical seal or packing and coupling, the pump shaft can be easily rotated by hand without any rubbing, and the protective cover of the coupling should be installed properly.
⑸When using the pump with suction, it 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 empty space in the pump, and then close the gate valve of the discharge pipe.
⑹Check for loose foundation bolts before starting. Whether the gland is skewed, and the supply of lubricating oil and cooling water.
2Start up
⑴Close the inlet and outlet pressure (or vacuum) gauges and outlet valves (if there is a bypass pipe, it should also be closed at this time). Start the motor (jog first to confirm that the pump is rotating correctly before starting the formal operation), then open 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 required working condition. When the discharge pipeline is closed, the continuous working time of the pump cannot exceed3minute.
⑵During the starting process, it is important to constantly pay attention to the power reading of the prime mover and the vibration of the pump. The number of vibrations should not exceed0.06Millimeters, the measurement location is the bearing seat.
⑶Sealing condition: The mechanical seal should have no leakage or heating phenomenon, and the packing seal should be in a continuous dripping state.
3Running
⑴Regularly check the heating condition of the pump and motor (the temperature rise of the bearings should not exceed)75℃）And the fuel supply situation of the oil level gauge. (Usually every run)1500After hours, all lubricating oil should be replaced once.
⑵Do not use suction valves to regulate flow to avoid cavitation.
⑶The pump should not be below30%If continuous operation is necessary under the designed flow rate, a bypass pipe should be installed at the outlet to discharge excess flow.
⑷Pay 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.
4、 stop
⑴Slowly 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.
⑵Cut off the power supply.
⑶If external drainage is used for sealing, the drainage valve should also be closed.
⑷If the ambient temperature is below the freezing point of the liquid, the liquid in the pump should be drained to prevent freezing and cracking.
⑸If parked for a long time without use, in addition to draining the corrosive liquid inside the pump, all components should be disassembled and cleaned, especially the sealing chamber. It is best to remove and clean the pump before reinstalling it. In addition to applying oil and rust prevention treatment and sealing the pump inlet and outlet, regular inspections should also be carried out.

6、 Precautions for using mechanical seals:
This model of pump can be equipped with different forms of mechanical seals according to different usage conditions, such as internal single end balanced and unbalanced types, double end balanced and non flat balanced types, external mechanical seals, etc. The usage method and precautions also vary depending on the selected sealing type. Below are only a few general precautions to be taken.
1、 Due to the fact that mechanical seals are generally suitable for use in clean, non suspended particle media, newly installed pipeline systems and liquid storage tanks should be carefully flushed to prevent solid impurities from entering the mechanical seal end face and causing seal failure.
2、 In media that are prone to crystallization, when using mechanical seals, attention should be paid to frequent flushing. Before restarting after parking, clean the crystals on the mechanical seal.
3、 Disassembling mechanical seals should be done carefully, and it is not allowed to use hammers, irons, or other tools to strike, in order to avoid damaging the sealing surfaces of the dynamic and static rings.
4、 If there is dirt that cannot be removed, try to remove the dirt, rinse it clean before disassembling to avoid damaging the sealing components.
5、 Before installing mechanical seals, all sealing components should be checked for failure or damage, and if so, 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 washed clean before assembly, especially the dynamic and static ring surfaces, which 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、 Correctly adjust the compression amount of the spring. 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 fluid should be turned on before starting to fill the sealing chamber with sealing fluid. When parking, stop the pump first and then turn off the sealing flushing liquid.