Pumps of rotary type are excellently suited for operation at hydroelectric power stations of various capacities. Modern modifications are actively used in industry for pumping oils, as well as mixtures. The rotors in the devices are used with a pusher of different sizes. The torque of the shaft depends on the engine power. As a rule, collector motors are installed on the devices.
How does it work?
A standard rotary pump includes a running plunger mechanism. Pushers are used with fixed plates. The camera of the main unit has an oblong shape. A shaft is mounted at the rear that is fixed to the uprights. O-rings are required to strengthen the pusher. At the bottom of the pump is a frame. Special racks are installed under the racks for sealing.
The motor can be fixed behind the posts near the rotor box. The rotation process is controlled by an internal modulator. When voltage is applied to the motor, the controller turns on. Next, the engine anchor is launched, which drives the shaft. Then the pushers are rotated. In this case, the pressure in the chamber of the main unit increases significantly. To stabilize the process, rods are used. They are fixed on pins or plates.
Home-made modifications
How to make a manual rotary pump for water with your own hands? The usual model can be assembled on the basis of a drive motor. Pushers are more appropriate to select a small thickness. In the main unit, the rack is installed using a welding machine. Many experts recommend sanding the front of the pump carefully. The shaft of the model is important to fix through the sleeve. The rotor box itself is mounted under the stand.
Pump types
There are volumetric, vacuum, as well as cam devices. The first type is made with large pins that are in the chamber and play the role of a pusher. Modern devices are used not only in stations, but also in wells. Vacuum modifications stand out with great power. Adapters for them are selected contact and channel type. The most common are considered cam devices.
Pushers for models of this type are made with small protrusions. Blockers are used mechanical and electronic type. Motors are most often installed behind blocks and mounted on racks. Cam devices are used mainly in hydraulic power plants. Their production rate is quite high. The energy consumption parameter depends on the rotor frequency.
Volumetric modifications
In hydraulic plants, a volumetric rotary pump is quite common. The principle of operation of the device is to increase the pressure on the plates. The shaft for models is used with fittings. To fix the plungers, not only rings, but also clamps are used. To fix the sleeve gaskets are always installed. Controllers for the motor are selected transition type.
Channel modifications are rare today. It is especially important to note that on the market there are rotary-type pumps with 20 kW motors. They are great for pumping oils. The dimensions of the volumetric modification are quite different. Pushers in devices are used only of a fixed type, they can not be removed. There is a good volume pump (rotary) in the range of 15-35 thousand rubles.
Vacuum Type Models
For pumping mixtures of high viscosity, a vacuum rotary pump is often used. The principle of operation of models is based on the conversion of electrical energy. The rotor of the modifications is often installed behind the racks. Pumps of this type operate with a frequency of not more than 3 thousand revolutions per minute. Some modifications are able to boast a high production parameter. The maximum pressure coefficient does not exceed 3 bar on average.
Flaps are used to protect the main unit. Motors are used with rotor boxes of open and closed type. Models with adapters are quite rare. Most often they are used for pumping low viscosity liquids. Many experts recommend vacuum- type pumps for use in difficult conditions. Use of modifications outdoors is permitted. There is a good rotary pump in the region of 30 thousand rubles.
Cam devices
For smooth operation of the stations, a cam rotary pump is great. The principle of operation (for wells) is based on a change in pressure inside the block chamber. Adapters for models are often used contact type, and pins are used with small jumpers. Many devices are made without longitudinal pushers. According to the performance parameter, the pumps of this type are not considered the best.
To seal the chamber, bushings are often used, which are clamped by a nut under the chamber. Belt-type blocks are rare. Frames are used both with and without body kit. The pressure limit for the pumps of this type starts at 8 bar. There is a good model of low power in the range of 30-40 thousand rubles.
Modifications to the GY1A035F Series
This is a high-quality and efficient rotary pump. The principle of operation, the device model should be considered first. At the bottom of the structure is a wide frame that is connected to the stand. There is no expander for this pump, so the device does not start immediately.
The adapter for the rotor is a contact type. If we talk about indicators, it is important to note the high level of pressure in the block. The camera in the device has an oval shape. According to experts, the model is not the best for hydropower plants. The pumping rate in the device is quite low.
The rotor of the modification is designed for three stages. Box under the motor is used belt type. According to most experts, the pump does not suffer from malfunctions from the network. Only plungers need lubrication. To turn on the pump, channel type controllers are used. Indicator blocks are installed very rarely.
Parameters of GY1A040F Series Models
For pumping high viscosity liquids, the indicated rotary pump is remarkably suitable. The device and principle of action are proposed to be considered first. The motor for modification is selected with a collector. The modification's anchor is used with two windings. The maximum frequency of the model is in the range of 2–2.5 thousand revolutions. There is a cover for inspecting the rotor. The pump of the specified type is working from a special controller.
The indicator block is installed through the modulator. According to experts, the rotor box is used with a high-quality protection system. Overloads on the gearbox are very rare. Pushers in devices are used in the form of a petal. The pressure indicator on the chamber is about 5 bar. The frame clamps are made entirely of stainless steel. To control the pressure, mechanical and digital pressure gauges are used. The price of this rotary pump for water starts at 33 thousand rubles.
Features of pumps of the NVR 220 moto series
The pump (vacuum, rotor) "HBP 220 moto" has many advantages. However, it is important to note that the pushers are of a channel type and are not capable of boasting quick pumping. The frequency indicator is at the level of 2200 rpm. It is also worth noting that the model has a lock with a barbell. The filter for drying the channel in this case is absent.
The central unit is used with an adapter. The pump shaft is located under the chamber and can withstand heavy loads. Only one fitting is installed above the plunger. The adapter for the rotor box in this case is missing. It is also worth noting that the model is great for pumping oils in large quantities. There is a pump (vacuum, rotary) HBP 220 no more than 28 thousand rubles.
Modifications of the Intertool HT 0067 series
Oil pump (manual, rotary, 26l / min) Intertool HT 0067 is considered universal and is highly regarded in the industry. Pushers in the device are used round in shape, they handle water pumping well. The motor for the pump is selected collector type with one anchor. It is also worth noting that the modification uses a fixed pin.
The device is locked using a bar. The unit under the camera is small. The pressure limit parameter is only 5 bar. The pump protection system is used in the RK series. If you believe the reviews of experts, the device does a great job of pumping water from the wells. A pressure gauge is not included in the standard equipment of the device.
The rotor box itself is designed for four steps. The gearbox is a two-pin type. The total weight of this pump is 28 kg. The mounting pins of the presented model do not need lubrication. Two gaskets are used to secure the rod. The price of the specified rotary pump starts at 28,400 rubles.
SLR Series Model Parameters
The SLR rotary pump is used only in hydropower plants. According to experts, the model is able to withstand large overloads. The maximum pressure is 5 bar. The pump protection system is used in the RK series. A separate output is provided for connecting the pressure gauge. The power of this modification is at the level of 5 kW.
The motor in the model is used with a collector anchor for two windings. It is also worth noting that in the lower part of the structure is a protective fitting. The seal in the main chamber is not provided. The indicated rotary pump is in the range of 30-32 thousand rubles.
Features of pumps of the KO-505 series
The specified pump of the rotary type is used at stations of different capacities. Many experts say that the model starts pretty quickly. The protection system is used in the RK series. Pushers are used in a round shape, their resistance index is quite high.
The rated power of the modification is 340 watts. The device is suitable for pumping water from a well. It is also worth noting that the model has a stopper at the bottom that helps with high pressure. The protective ring is located only in the front of the frame. The price of this rotary pump is from 38 thousand rubles.