Cam type double rotary lobe pump
Item No.：
07
Category：
Summary
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Product Detail
- Description
- Performance
- Parameters
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- Commodity name: Cam type double rotary lobe pump
- Commodity ID: 07
The product is equipped with a thermal insulation device, which can heat the pump body through steam, hot water or hot oil to make the material flow better, prevent the material from solidifying in the pump cavity and the end face of the mechanical seal, avoid the overload of the pump and the damage of the mechanical seal during start-up operation, and realize the protection of the pump. It is suitable for working conditions where the viscosity of the material is greatly affected by temperature.
Product overview
The product is equipped with a thermal insulation device, which can heat the pump body through steam, hot water or hot oil to make the material flow better, prevent the material from solidifying in the pump cavity and the end face of the mechanical seal, avoid the overload of the pump and the damage of the mechanical seal during start-up operation, and realize the protection of the pump. It is suitable for working conditions where the viscosity of the material is greatly affected by temperature.
How it works
Hollysys rotary lobe pump consists of two rotors and pump body composed of multiple volumetric cavities, when the two rotors rotate synchronously in the opposite direction, the volumetric cavity periodically works - from small to large - fixed volume - from large to small to small to achieve the purpose of transporting fluid. The motor and reducer drive the pump spindle to rotate, and the electric energy is converted into the kinetic energy of the transported fluid medium through the pump, and the flow rate of the pump depends on the volume value of the working chamber and its change frequency per unit time, which has nothing to do with the discharge pressure (not theoretically and without considering the viscosity and fluidity of the material); The rotary lobe pump drives two synchronous counter-rotating rotors by the synchronous gear through the transmission shaft to form a fixed volumetric cavity between the two rotors and the pump cavity during the rotation process, which are: the volumetric cavity at the inlet changes from small to large to produce suction (vacuum) to suck in the material, and the volumetric cavity at the outlet changes from large to small, forming a conveying pressure to output the material. The volumetric chamber characteristics of the pump allow efficient passage of large, fragile soft solids, such as pulp-containing materials in food materials.
Application areas
• Daily chemicals: dish soap, laundry detergent, shower gel, skin cream, shampoo, hand soap, toothpaste, soap, washing powder slurry, daily chemical raw materials, etc.
• Fine chemicals: dyes, pigments, adhesives, silicone oils, leather oils, chemical additives, various colloids, various slurries, etc.
• Food: syrup, molasses, sugar paste, dairy, fruit juice, jelly, yogurt, honey, ice cream, filling, meat puree, sauce, bean paste, flour slurry, various sauces, hot pot base, soy protein, chocolate slurry, and other food fluid media.
• Papermaking: polyacrylamide (PAM), gelatinized starch, carboxybenzene/propylene latex, rosin, rosin gum, filler, dry strength agent, wet strength agent, sizing agent, retention and filter aid, defoamer, coating, water treatment chemicals, etc.
• Chemical fiber: viscose pulp porridge, PVA, vinylon slurry, acrylic slurry, amine slurry, polyurethane slices, polyester, polypropylene, artificial fiber, functional vitamins, etc.
• Medicine: all kinds of ointments, extracts, medicinal lotions, pill pastes, syrups, health products, pharmacies, etc.
• Coatings: paints, coatings, inks, insulating paints, resins, additives, organic solvents, etc.
Pump head construction
Rotary lobe pump working simulation diagram
➀ At the feed port of the pump, as shown in the figure, the two rotors rotate synchronously in the opposite direction, and the volumetric cavity formed by the rotor and the pump cavity changes from small to large, and the material is sucked in.
➁ As the pump rotates, the fixed volumetric chamber formed by the rotor and pump chamber is filled with material in the red part, the rotor and the pump chamber.
➂ At the discharge port of the pump, due to the continuous operation of the pump, the fixed volume cavity composed of the rotor and the pump cavity merges and becomes smaller, so as to output the material.
Introduction to the rotor
(1) Two-blade rotor: When the viscosity of the material is high (more than 8000cp) or the material concentration is high, the fluidity is poor, and the material contains soft small and medium-sized particles, this form of rotor is usually selected, for the above materials, the rotor can make the feeding smoother and can effectively protect the integrity of the particles.
(2) Three-blade rotor: dynamic balance, quietness, volumetric efficiency and other performance indicators are balanced, and the pump equipped with this type of rotor adapts to a wide range of conveyed materials, and is the most used rotor type in practical applications.
(3) Multi-blade rotor: This form of rotor is usually used in low flow rate and high pressure stability requirements, small flow conditions, according to the actual working conditions, usually choose 5-8 blade rotor, to meet the requirements of various special conveying processes.
Introduction to sealing
Seal type: Mechanical seal
Seal configuration: general mechanical seal, water-cooled mechanical seal, oil-lubricated mechanical seal, water-cooled double-acting mechanical seal, cooling cycle pressure holding mechanical seal
Sealing end face material: silicon carbide-silicon carbide, silicon carbide-cemented carbide, cemented carbide-cemented carbide
Sealing O-ring material: fluoroelastomer, fluoroelastomer, perfluoroether, etc
Note: Special working conditions can be equipped with packing sealing.
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Product features
• The rotor and the pump body, the rotor and the rotor have a certain gap, no contact and no friction, no wearing parts in the pump cavity and long service life.
• No need to disassemble the pump from the pipeline, open the pump cover for online maintenance, saving man-hours and convenient maintenance.
• No friction in the pump chamber, low energy loss, low failure rate, reliable sealing and low noise.
• It can convey materials with high viscosity, high concentration, containing soft solid particles and other poorly flowing materials.
• The output flow of the pump can be changed within a certain range by adjusting the pump speed, and can be used as a general metering pump.
• Optional flange type, screw type, clamp type and other types of connection methods, the entry and exit direction can be horizontal or vertical.
• It can transport gas, liquid, solid mixed materials, and a wide range of conveyed materials.
• Built-in thermal insulation cooling structure design, good thermal conductivity, space saving, easy installation.
• It can be equipped with sanitary safety valve and pump valve to effectively provide pressure overload protection of pipeline system.
• Rubber rotary lobe pumps can transport sludge, sewage and materials containing solid particles, please refer to rubber rotary lobe pumps for details. -
Technical data sheet
Type
Capacity
(L/r)
Rotation speed
(r/min )
Flow
(m3/h )
Power
(kw)
Pressure
(Mpa )
Suction pressre
(Mpa )
Viscosity
(cp)
Lnlet&outlei
DN(mm)TRP12-0.5-15 0.04 10-550 0.1-0.5 0.55-1.1 0.1-1.2 0.08 1-2000000 15 TRP12-2-25 0.15 10-550 0.5-2 0.75-2.2 0.1-1.2 0.08 1-2000000 25 TRP12-5-40 0.32 10-450 2-5 1.1-3 0.1-1.2 0.08 1-2000000 40 TRP12-10-50 0.65 10-450 5-10 2.2-75 0.1-1.2 0.08 1-2000000 50 TRP12-15-65 1.1 10-450 10-15 3-11 0.1-1.2 0.08 1-2000000 65 TRP12-20-65 1.74 10-450 15-20 4-15 0.1-1.2 0.08 1-2000000 65 TRP12-30-80 26 10-450 20-30 5.5-22 0.1-1.2 0.08 1-2000000 80 TRP12-40-80 3.65 10-450 30-40 7.5-30 0.1-1.2 0.08 1-2000000 80 TRP12-60-100 &2 10-450 40-60 9-45 0.1-1.2 0.08 1-2000000 100 TRP12-80-125 6.8 10-350 60-80 11-55 0.1-1.2 0.08 1-2000000 125 TRP12-120-150 9.8 10-350 80-120 15-90 0.1-1.2 0.08 1-2000000 150 TRP12-150-150 12.8 10-350 120-150 18.5-160 0.1-1.2 0.08 1-2000000 150 TRP12-200-200 20 10-300 150-200 122-185 0.1-1.2 0.08 1-2000000 200 TRP12-300-250 30 10-300 200-300 30-220 0.1-1.2 0.08 1-2000000 250 TRP12-400-300 40 10-300 300-400 37-250 0.1-1.2 0.08 1-2000000 300 Technical data sheet description
1. The speed, flow, power, pressure and viscosity in the technical parameter table are the range values, and the actual selection must be selected according to the viscosity, pressure and flow rate of the material during pump transportation to select the appropriate speed and motor power.
2. When the conveyed materials contain special conditions such as particles, it is necessary to select the pump model that meets the requirements of the working condition according to the specific conditions.
3. Please fill in the detailed working conditions parameters according to the 28-page selection guide, and provide them to our service personnel, and our selection engineers will make technical selection according to the parameters.
Model description
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