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Horizontal pump CM4-20 60HZ
Horizontal pump CM4-20 60HZ are an important part of our daily life. It can be used for irrigation, cleaning and firefighting purposes. It can also be used for water transport and processing, as well as automotive fueling. Water pumps are widely used throughout the world because they ensure clean water for drinking and other uses.
A water pump is a machine that moves fluids by pumping, as opposed to conveying or pushing. Pumps can be classified into two broad categories: centrifugal (where the inlet and outlet are located on opposite ends of the impeller) and positive displacement (where the inlet and outlet ports are located on opposite sides of the cylinder inside the impeller).
Product parameters-CM4-20 60HZ
| 60Hz | ||||||||||
| Model | Model | Driving motor P2(KW) | Q(m3/h) | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| CM4-20 | CHLF4-20 | 0.75 | H(m) | 26 | 25 | 24 | 19 | 17 | 14 | 10 |
Product introduction:
1. horizontal pump CM4-20 60HZ end suction chemical pump is excellent in performance, efficiency and easy in maintenance.
2. Pumps are made of high quality stainless steel material, which could be applied to transfer corrosive liquid (chemical) without solid and viscosity similar to water, just like sulfuric acid, hydrochloric acid, nitric acid, even base.
3. The normal CM4-20 60HZ pump could transfer medium which is -20°C~105°C(-4°F~ 221°F), while high temperature type reaches 300°C(572°F).
4. The chemical pump is widely used in chemistry, petroleum, metallurgy, electricity, papermaking, food, pharmacy, environmental protection, wastewater treatment, synthetic fiber or other industries.
CM4-20 60HZ model chemical pump is single-stage end-suction (axial suction) cantilever type centrifugal pump, which is used to transport corrosive liquid with viscosity similar to water and without solid particles. It has such characteristics as wide range of performance, high efficiency, high mechanical, chemical and physical level and convenient maintenance etc. It is energy saving type product recommended by the nation.
The temperature of transported media of CM4-20 60HZ model chemical pump is -20 105. Through adopting cooling method, it can transport media with higher temperature if necessary, and is applied to transport various corrosive media or media in which pollution is forbidden similar to water in such industries as chemical industry, petroleum, metallurgy, electric power, papermaking, food, pharmacy and synthetic fiber etc.
Structure-horizontal pump
- The Pump body adopts axial suction, radial discharge and foot support Type, which is directly fixed on the base.It is a centrifugal pump of horizontal,single stage,end suction,cantilever design.It is also called single stage end suction back pull type chemical process pump.
- Straight cone suction chamber, uniform speed field, small hydraulic loss, suction chamber with guide plate, reduce liquid flow circumferential spin, reduce head loss, improve efficiency.
- Large pump adopts double volute design, reduce radial force,abrasion resistant, pump vibration is small, smooth operation.
- Optimized impeller design, there are open, semi-open, closed impeller optional, wide applicability of conveying medium.
- Impeller back blade design, reduce the axial force, keep the solid phase away from the machine sealing cavity, improve the service life of the machine sealing.
1.Resistant to acid, alkali, wear, high temperature.
Technical questions and answers about pumps
What are the three main causes of mechanical vibration?
1) structure: caused by manufacturing design defects;
2) Installation: mainly caused by improper assembly and maintenance;
3) Operation: mechanical damage or excessive wear due to improper operation.
Why is rotor misalignment an important reason for abnormal rotor vibration and early bearing damage?
A: due to the installation error between rotors, the manufacturing of rotors, the deformation after bearing, the change of ambient temperature, and other factors, it may cause poor alignment. The shafting with poor rotor alignment, due to the forced change of the coupling, changes the actual working position of the rotor journal and the bearing, which not only changes the working state of the bearing but also reduces the natural frequency of the rotor shafting, Therefore, rotor misalignment is an important reason for abnormal vibration of the rotor and early damage of bearing.
What is the standard for measuring and rechecking the ovality and taper of the journal?
A: measure and recheck the ovality and taper of the journal bearing shaft diameter, which should meet the technical requirements, and generally should not be greater than one-thousandth of the diameter. The ovality and taper of the shaft diameter of rolling bearings shall not be greater than 0.05mm.
What should be paid attention to when assembling chemical pumps?
1) whether the pump shaft is bent or deformed;
2) Whether the rotor balance meets the standard;
3) Clearance between the impeller and pump casing;
4) Whether the compression amount of the mechanical seal buffer compensation mechanism meets the requirements;
5) Concentricity of pump rotor and volute;
6) Whether the center line of the pump impeller channel and volute channel are aligned;
7) Adjust the clearance between the bearing and the end cover;
8) Clearance adjustment of sealing part;
9) Whether the assembly of transmission system motor and speed converter (increase and decrease) meets the standard;
10) Alignment of the coaxiality of the coupling;
11) Whether the clearance of the ring meets the standard;
12) Whether the tightening force of connecting bolts of each part is appropriate.
What is the purpose of pump maintenance? What are the requirements?
A: Purpose: through the maintenance of the pump, eliminating the problems existing after long-term operation.
The requirements are as follows:
1) Eliminate and adjust the large gap caused by wear and corrosion in the pump;
2) Remove dirt, dirt, and rust in the pump;
3) Repair or replace unqualified or defective parts;
4) The rotor balance test is qualified; 5) Check the coaxial between the pump and the driver and meet the standard;
6) The commissioning is qualified and the data is complete, meeting the process production requirements.
What are the reasons for the excessive power consumption of the pump?
1) the total head is inconsistent with the pump head;
2) The density and viscosity of the medium are inconsistent with the original design;
3) The pump shaft is inconsistent or bent with the prime mover axis;
4) There is friction between the rotating part and the fixed part;
5) Impeller ring is worn;
6) Improper installation of seals or mechanical seals.
Application field
① In the production of chemical and petroleum sectors, most of the raw materials, semi-finished products and finished products are liquids, and the production of semi-finished and finished raw materials into semi-finished products and finished products needs to go through complex technological processes. During these processes, pumps play a role in transporting liquids and providing pressure flow for chemical reactions. In addition, in many installations, pumps are used to adjust the temperature.
② In agricultural production, pumps are the main irrigation and drainage machinery. my country's rural areas are vast, and a large number of pumps are needed in rural areas every year. Generally speaking, agricultural pumps account for more than half of the total output of pumps.Pumps are also the most used equipment in the mining and metallurgical industries. The mine needs to be drained by pumps, and in the process of beneficiation, smelting and rolling, pumps are needed to supply water.
③ In the power sector, nuclear power plants need nuclear main pumps, secondary pumps, and tertiary pumps, and thermal power plants need a large number of boiler feed pumps, condensate pumps, oil and gas mixing pumps, circulating pumps, and ash pumps.
④ In national defense construction, the adjustment of aircraft flaps, tail rudders and landing gear, the rotation of warships and tank turrets, and the ups and downs of submarines all require pumps. High pressure and radioactive liquid, and some also require the pump without any leakage.
⑤ In short, whether it is aircraft, rockets, tanks, submarines, drilling, mining, trains, ships, or everyday life, pumps are needed everywhere, and pumps are running everywhere. That's why the pump is listed as a general-purpose machine, which is a major product in the machinery industry.
⑥ Electric pumps, i.e. pumps driven by electricity. The electric pump is composed of a pump body, a water lift pipe, a pump base, a submersible motor (including cables) and a starting protection de
