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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
Contact Rhodes
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.

Selection of Rotor Material in Rotor Pump Selection [01-17 09:35]
At present, there are many types of cam rotor pumps. The choice of rotor material needs to be selected according to the specific operating conditions. According to the rotor material classification, cam rotor pumps can be divided into two categories: metal rotor pumps and rubber rotor pumps: First of all, the metal rotor pump is relatively low in terms of production cost, but for some special media materials, it is not suitable for the oil field or the printing and dyeing industry. This kind of harsh working conditions, the metal rotor and pump are There is zero contact between them, so the self-priming capacity of the rotor pump is very poor, so the volumetric efficiency is relatively low, and it also limits the pump outlet pressure. The rubber rotor pump can make full use of the high elastic energy of rubber, so it can achieve a better fit. In this way, the self-priming capacity and volume efficiency of the pump can be greatly improved.
Precautions in the rubber rotor injection process [01-15 09:35]
The rubber rotor injection process mainly involves the treatment of the metal skeleton and the injection mold. During the operation, pay attention to the following points: 1. In the metal skeleton treatment step, the high-temperature degreasing is heated in the form of an oven, and the temperature is set to 200 °. C-250 ° C; 2. After sandblasting operation, the volatile solvent is one of benzophenone and xylene; 3. In the coating operation, the drying method can be dried or air-dried, and the drying temperature is set to 120 The temperature is about 10 ° C, the time is about 10 minutes, and the air-drying time is longer; 4. Two layers of glue are selected;
What operations need to be performed on the metal skeleton of the rubber rotor pump rotor injection? [01-13 09:35]
In the rubber rotor pump injection process, the treatment of the rotor metal skeleton is particularly important, which determines the stability of the rotor in the later use and the self-priming pressure that can be achieved. The main purpose of processing the metal skeleton in the injection molding process is to increase its adhesion. The main steps are as follows: 1. Degreasing the processed metal skeleton at high temperature; 2. Sandblasting the surface that is in contact with the rotor; 3. Use The volatile solvent cleans the surface of the metal skeleton; 4. After the metal skeleton is cooled, the glue is applied, and after cooling, the next step is performed. In the overall processing of the metal skeleton, more details are required, and reasonable time control is especially important.
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 used 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 characteristics 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 elastic contact 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 warehouse 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 and 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 attract complaints and even claims from the tanker owner. 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 the siphon effect. Now, using the strong self-priming and idling characteristics of the rotor pump, the expected oiling effect can be directly achieved 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 truck [12-20 09:35]
The characteristics of Rohde mobile pump truck The multi-purpose mobile pumping station developed and produced by Rohde 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 changeable 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 transport acid-base media? [12-11 09:31]
Can the rubber rotor pump transport acid-base media? The rubber rotor pump is made of fluorine rubber FPM, which can transport weak acid and weak base media, such as PAC used in water treatment industry, oily sewage in petroleum and petrochemical industry, etc.
Sewage sewage pump (Solution 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 engaged 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. Use experience shows that before the material enters the cavity formed by the rotor and the stator, it is very easy to be entangled in the position of the rotating shaft, and it may even cause blockage at 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 better 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. The reverse conveying is sealed under pressure, dry running ability, mechanical seal immersed in lubrication In the oil, it does not generate heat. It is allowed to run dry for 30 minutes. Dry operation is not allowed, and it is easy to burn the pump.
The effect of the clearance between the cam rotor pump rotor and the pump casing on the 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 the normal operation and life of the rotor, mechanical seals and bearings. The main reasons are as follows: 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 is deformed too much in the process, once the gap is exceeded, 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]
For oil sludge treatment in oil fields or refineries, floor tanks and sedimentation tanks, the self-priming characteristics of Rohde cam pumps can easily complete the suction of sewage oil. In addition, the oil in 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. Resistant to high viscosity 3. Wear resistance Loss 4. High efficiency 5. Simple maintenance 6 Low maintenance costs, often replace screw pumps
Flood control and drought resistance mobile pump application introduction [11-18 09:35]
Flood pumping mobile pump truck is a cam pumping combination system 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. 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 can be 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. Used in urban waterlogging drainage, drought resistance, emergency drainage, 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 tank oil waste crude oil backfilling [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 dewater, so 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 transmission 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, and have high overall efficiency. Particles and fibers do not easily cause the pump to jam, reducing maintenance costs and improving 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. 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, and 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 type of medium should be selected by Rohde cam rotor pumps to replace the old pump valve. For media ≤ 100,000 CP, sewage oil, sludge after desulfurization and denitration, and solids that may be contained in it as long as they are less than 8cm 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 pressures the medium 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]
To say that the pumps commonly used in sewage plants must be sludge rotor pumps, do you know what advantages the sludge rotor pumps have 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, achieve 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 usually transported by a sludge rotor pump. The sludge rotor pump is also called 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
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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, First Road, Dongge Industrial Park, Chengyang District, Qingdao, Shandong Province

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