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National Consulting Hotline 400-800-5717

青岛罗德通用机械设备有限公司

中石化、中石油、中海油长期供应商 Cam Rotor Pump Manufacturers Sinopec, PetroChina, CNOOC Long-term Supplier

罗德泵凭借卓越的性能,在石油市政化工码头造船轻工等诸多行业得到广泛应用
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support hotline:
400-800-5717

Phone: 0532-55576556

Fax: 0532-55576556

QQ: 3249598812

Email: roeder001@163.com

Company address: No. 3, 1st Road, Dongge Industrial Park, Chengyang District, Qingdao.

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Comparison of the advantages of cam pumps [01-07 09:35]
In pumping process improvement, we usually need to compare the advantages of the two pumps. Cam pumps have not been used in the market for a long time, but they can be applied in a very wide range, so they are also called universal pumps.
The application of cam pump in biogas project [01-03 09:35]
Rohde cam pumps are a highlight in biogas systems. Compared with the traditional single screw conveying biological raw materials, the features and advantages of the cam pump are quite obvious. First of all, when the cam pump conveys the medium, the medium fills the closed cavity formed by the rotor and the pump casing and is discharged with the movement of the cavity. Therefore, the cam pump is most suitable for conveying high particulate matter such as biogas raw materials and particle diameter Large medium; second, the cam pump's conveying parts are two elastically contacting cam rotors, and the rotor has a variety of wear-resistant and adaptable materials and structures to choose from; third, the cam pump also has online Maintenance, compact structure, small footprint, few wearing parts (only one pair of rotor and mechanical seal), long wearing parts, etc. Fourth, cam pump is an efficient positive displacement pump, under the same working conditions , Its starting torque and running torque
Advantages of rotor pumps in sweeping and sweeping operations [12-24 09:35]
The unloading operation of oil tankers is generally completed by the crane pipe system of the oil terminal. When the oil tanker docks, many crane pipes will connect the tanker with the oil pipeline. The function of the line sweep pump is to evacuate the liquid remaining in the pipe after the crane pipe is loaded and unloaded. The line sweeping operation generally takes less than 15 minutes. If the line sweeping pump cannot be completed or takes a long time to complete, it will invite complaints and even claims from tanker owners. Before the crane tube and the tanker are separated, the liquid in the crane tube must be drained. Otherwise, the crane tube may be crushed. In the past, vacuum pumps and centrifugal pumps were commonly used to achieve the desired results by using siphon effect. Now, the strong self-priming and idling characteristics of the rotor pump can be used to directly achieve the expected oiling effect without the need for a filling pump operation, which can greatly save time loss on the pipeline. Pump selection depends on the medium. Usually, a pump can only be used for
Structural characteristics and application range of Rohde mobile pump trucks [12-20 09:35]
The characteristics of Rohde mobile pump truck The multi-purpose mobile pump station developed and produced by Rohde Company has been widely used in various fields around the world. Its main features are: 1) strong self-priming ability (8m vertical, 200m or more horizontal), strong anti-blocking ability, simple maintenance, high-viscosity, high-solids-containing medium, large flow range, etc. Years of experience have shown that Rohde mobile pumps are very suitable for a variety of complex and changing application environments, and their easy-to-maintain features eliminate users' worries. A variety of combined designs, tailored to the most reasonable configuration for each different working condition. Good self-priming performance: As the core structure of the mobile pump combination, the Rod cam pump has a self-priming height of 8 meters and a horizontal self-priming of more than 200 meters without the need for a drainage irrigation pump. After the pump truck arrives at the site,
Can the rotor pump meet the requirements of the petrochemical industry? [12-17 09:33]
The rotor pump can meet the requirements of the petroleum and petrochemical industry. The characteristics of wear resistance, strong self-priming and high pressure help customers solve many problems, and reduce energy consumption with high efficiency.
Can the rubber rotor pump convey acid-base media? [12-11 09:31]
Can the rubber rotor pump convey acid-base media? The rubber rotor pump is made of fluorine rubber FPM, which can transport weak acids and alkalis, such as PAC used in water treatment industry, oily sewage in petroleum and petrochemical industry, etc.
Manure sewage pump (replacement solution for high sediment content sewage, replace screw pump) [12-07 09:35]
Fecal sewage is a kind of sewage with a lot of fibers and debris. In the transportation of fecal sewage, the entanglement of fibers and hair has always been the biggest problem that plagues users. Many users have used screws at the station for raw water transportation. In pump experience, screw pumps use the rotation of the screw to suck and discharge liquid: the rotor and the stator are closely fitted and meshed with each other; between the suction and discharge ports of the pump, it is divided into one or more sealed spaces. The liquid in the suction chamber is enclosed therein, and continuously moves from the suction chamber to the discharge end in the axial direction of the screw. Using experience shows that before the material enters the cavity formed by the rotor and the stator, it is easy to entangle in the part of the rotating shaft, and even cause the blockage of the entrance of the stator and rotor cavity. When the pump body is blocked, in view of the complicated structure of the screw pump, the complicated and time-consuming maintenance work is a headache.
Performance comparison between rotary piston pump and twin screw pump [12-03 09:35]
Compared with the technical performance of Rohde rotary piston pumps and twin screw pumps, rotary piston pumps have high working efficiency, small footprint, good self-priming capacity, economic maintenance costs, activated sludge treatment in sewage plants, and petroleum and petrochemical industries. Sewage oil treatment is widely used. Rotary piston pump twin screw pump pump efficiency 65% -90% ≤ 65% self-priming capacity vertical self-priming 8.7 meters, no need to fill the pump good self-priming capacity compact footprint pump design, small footprint, flexible caliber Reducing pumps have various design structures, but the large area of the conveying direction pump is completely symmetrical, allowing forward and reverse, the direction is reversible and irreversible, and the reverse conveying is sealed under pressure, dry running ability, mechanical seal immersed in lubrication In the oil, it does not generate heat. Allow dry running for 30 minutes. Dry running is not allowed. It is easy to burn the pump.
Impact of cam rotor pump rotor-pump clearance on performance [11-26 09:35]
The cam rotor pump forms a nearly sealed space between the rotor and the pump casing to achieve the effect of conveying the medium. Therefore, its performance parameters and reliability are closely related to the size of the pump gap, which is determined by the structure, shaft, and rotor of the pump. Factors such as the force and deflection of the part. Among them, the deflection of the shaft has a great impact on whether the rotor, mechanical seals and bearings can work normally and the life is long, mainly because: 1. The rotor is the main overcurrent component of the medium conveyed by the cam rotor pump. In the process, the medium is transported from the pump inlet to the outlet. If the rotor deforms too much in this process, once it exceeds its clearance, it will cause the rotor to directly contact the fixed parts (such as the pump body or wear-resistant lining) to cause friction, affecting The normal operation of the cam rotor pump shortens its working life. Here the deformation of the rotor includes the
Sewage oil lift pump application introduction [11-21 09:35]
In oil fields or oil refineries, floor sludge tanks and sedimentation tanks for oil sludge treatment, the self-priming characteristics of Rohde cam pumps can easily complete the suction of sewage oil. In addition, the oil from the oil trap and the bottom sludge are collected and combined for oil sludge treatment. The oil sludge is transported to the centrifugal separator by a cam pump. Application range 1. Sewage oil lifting pump 2. Sedimentation tank oil sludge pump 3. Oil sludge centrifuge feed pump 4. Centrifuge discharge pump Application advantages 1. Strong self-priming ability 2. Resistance to high viscosity 3. Wear resistance Loss 4. High efficiency 5. Simple maintenance 6 Low maintenance costs, often replace screw pumps
Application of flood-proof and drought-resistant mobile pumps [11-18 09:35]
Flood prevention mobile pump truck is a cam pumping combination system launched by Rohde Company that is not limited by power supply and is convenient and fast to move. It has the incomparable advantages of the centrifugal pump truck unit. It does not need to fill the pump to evacuate when it is turned on. It can be put into drainage operation for a short time. It is a real emergency rescue truck. The pump truck has large flow, small size, full intelligent control, full Maintenance-free, widely used in harsh environments such as urban waterlogging drainage, agricultural drought-resistant water supply and other dusty environments. The use of air-cooled engines started by artificial energy storage not only eliminates the maintenance troubles of batteries, fan water tank cooling systems, but also allows the Work around the clock in harsh environments such as sand and dust. In the case of long-term storage of flood control and drought-resistant vehicles, the equipment can go to the site at any time and immediately put into operation. It is used in urban waterlogging drainage, drought relief, silt drainage, emergency rush
Advantages of Corrosion-resistant Rotor Pump for Oily Wastewater [11-12 09:35]
PetroChina Sinopec generally uses corrosion-resistant cam rotor pumps to transport oily wastewater. Oily wastewater mainly comes from petroleum, petrochemical, steel, and coking. Except for heavy tars with a relative density of 1.1 or more, the remaining relative densities are less than 1. The oily substances contained in oily wastewater, in the petroleum and petrochemical industry, mainly include natural petroleum, petroleum products, tars and their fractions. The pollution of water bodies from oily wastewater is mainly petroleum and tar. The concentration of oil in wastewater discharged from different industrial sectors varies widely. For example, wastewater generated during the refining process has an oil content of about 150 to 1,000 mg / L, a tar content of about 500 to 800 mg / L in coking wastewater, and a tar content of about 2,000 to 3000 mg / L in the wastewater from a gas generating station. So oily
Rotor pump application in waste crude oil backfilling of oil tanker [10-28 09:35]
After a long period of operation of ships and tankers, a large amount of waste crude oil will be accumulated in the storage tanks on the ships. These waste crude oils can be recovered using high-viscosity pumps. After recovery, they can be reused after treatment. During the recovery process, stripping and canning are generally performed. Here we focus on the process of pouring the tank. In this process, we need to add chemicals to reduce viscosity, remove sand, and also dehydrate. Therefore, we need to consider many points in the selection of the pump: 1. Various types of waste crude oil. Solid impurities, that is, the requirements for pump life 2. High viscosity / high efficiency use requirements 3. Post-maintenance costs 4. The bottom of the tank must meet the characteristics of mixed gas-liquid transport Rotor pumps are a type of positive displacement pumps. Large particles, unlike centrifugal pumps, have high requirements on the medium. They have great advantages in gas-liquid mixed transport, and their rubber-coated rotors can
Can a gear pump be replaced by a rotor pump? [10-22 09:35]
Rotor pump is a positive displacement pump that can run in both directions. It has many applications in petrochemical, fine chemical, daily chemical, pharmaceutical, food, environmental protection, papermaking, coating, metallurgy and other industries. At present, domestically produced cam pumps are mainly metal cam pumps, which are suitable for clean, particulate and fiber-free media. The overall efficiency is high. Particles and fibers do not easily cause the pump to jam, which reduces maintenance costs and improves production operation efficiency. Rotor pumps with rubber rotors are also beginning to gain popularity. They are mainly used in petrochemical and municipal sludge applications. The rotors are resistant to abrasion and have strong self-priming ability. They can achieve low speed and high efficiency, and require high shearing stations. Suitable for. The gear pump is a positive displacement rotary pump. Its working principle is that a pair of meshing gears rotate synchronously. One driving gear is driven by the motor to rotate, the other driven gear is connected to the production gear.
The application of cam rotor pump in dirty oil medium [10-19 09:35]
Coal slag water and oily sewage are the media often processed by the equipment purchased by the petroleum and petrochemical industry. We can collectively call them sewage oil. This kind of medium should start to choose Rohde cam rotor pump to replace the old pump valve. For media ≤ 100,000 CP, sewage oil, sludge after desulfurization and denitrification, and solids that may be contained in it as long as they are less than 8 cm can be transmitted through the cam rotor pump. From the perspective of pump classification, Rohde cam rotor pumps are positive displacement pumps. During operation, the two rubber-coated rotors operate at low speed, a vacuum is formed in the pump cavity, and the pressure difference between the inlet and outlet forces the medium to pass through the pump body. Get work done. In the petroleum and petrochemical industry, the Rhodes brand has rich and mature performances in the companies under PetroChina, Sinopec and CNOOC. You can visit our website and click on the successful cases of petroleum and petrochemicals to learn more about us.
Advantages of Rotary Pumping Sludge Water [10-15 08:26]
If you say that the sewage pump is commonly used, then it must be a sludge rotor pump. So do you know what advantages the sludge rotor pump has in use? Testimonials from customers and the application of sludge rotor pumps show that sludge rotor pumps are indeed better than centrifugal pumps, screw pumps, and submersible sewage pumps, so what are their advantages: 1. The use of elastomer rotors not only makes them With long-term resistance to high temperature of 120 ℃, it also has very good wear resistance. The unique spiral rotor profile optimization design is adopted to improve the internal flow characteristics, improve the anti-cavitation performance, realize low-pulsation and high-efficiency transportation, delay the rotor life, and reduce maintenance costs. 2. Seal design, using a combined floating mechanical seal with independent intellectual property rights to ensure that the temperature of the continuous sealing medium reaches 120 ° C. All mechanical seals are one component, playing
Application of sludge rotor pump [10-11 09:35]
Sludge rotor pump is a kind of pump commonly used by rotor pump manufacturers. Do you know what are the applications of rotor pumps? Sludge rotor pumps are a kind of conveying machinery with high discharge viscosity. Sludge is generally transported by a sludge rotor pump. The sludge rotor pump is also called the cam rotor pump. Through the fine adjustment of the manufacturing process, the purpose of sludge transportation is achieved, and the gasoline and diesel motors are used to meet the needs of the work station. The installation of sludge rotor pumps is very convenient. The advantage is that the footprint is small and the operation is very simple. Generally, it is faster to start. People can easily grasp the essentials of the work. It is very simple, and its supporting motor has a small power and does not generate a lot of noise like other pumps. Features and advantages
Precautions in the use of rotor pumps [10-08 09:35]
Rotor pumps are used in many places in our lives. Do you know what are the matters needing attention in the use of rotor pumps? Let me introduce them in detail below: The power source of a rotor pump depends on its two synchronous countermeasures. The rotating blades generate a strong suction at the inlet during the rotation process, enabling the rotor pump to suck in the material we need and execute it. Rotary pumps run continuously, and what we need is continuously delivered to where it is needed. Before we start, all we have to do is check if the oil in the gearbox is sufficient and replace the replenishment oil regularly. The total replacement time is about 4,000 hours. Before we start, we need to open the door of the pipeline. When the medium enters, we need to turn the rotor pump by hand. After confirming the normal operation, the pump can be operated formally.
Factors Affecting Rotor Pump Efficiency [09-30 09:35]
The emergence of rotor pumps is very popular, so do you know what factors affect the efficiency of rotor pumps? The following introduces you in detail: 1. If the mechanical loss is outside the front and rear covers of the impeller Friction loss on surface and pump cavity (also known as disc loss). Disk loss accounts for a large proportion, even reaching 30% of the effective power. The test shows that the disc loss is proportional to the third power of the rotation speed and proportional to the fifth power of the impeller outer diameter. Therefore, the larger the impeller outer diameter, the larger the disc loss. Although the disk loss is proportional to the cubic power of the rotation speed, at a given head, with the increase of the rotation speed, the outer diameter of the impeller decreases accordingly (it can be considered that when the pump rotation speed is doubled, the impeller outer diameter is reduced by half). The disk loss decreases in proportion to the fifth power, so as the speed increases,
What are the causes of cavitation in rotor pumps? [09-27 09:35]
The cavitation phenomenon will occur during the use of the rotor pump, so do you know what is the reason for the cavitation of the rotor pump? The following is a detailed introduction: the root cause of cavitation of the rotor pump is that the absolute pressure of the liquid is lower than that of the gas. The pressure decrease may be caused by a decrease in the total pressure or a local pressure of the system. The reasons for the decrease in the total system pressure are as follows: 1) the pumping height increases; 2) the atmospheric pressure decreases; 3) the pressure inside the suction container decreases; 4) the temperature of the pumped liquid increases (evaporation pressure increases); the local pressure decreases The reasons are as follows: 1) the rotation speed increases and the flow rate increases; 2) the viscous liquid causes outflow: 3) the drastic change in liquid flow. If you are interested in Rohde Rotor Pump, please call 400-800-5717 for consultation
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Qingdao Luode General Machinery Equipment Co., Ltd. Record number: Lu ICP No. 13022300
Phone: 0532-55576556 Fax: 0532-55576556
Email: roeder001@163.com QQ: 3249598812
Address: No. 3, 1st Road, Dongge Industrial Park, Chengyang District, Qingdao City, Shandong Province

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