Rotary type pumps are great for working at hydroelectric power plants of different 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 power of the motor. As a rule, collector motors are installed on the devices.
How does it work?
Standard rotary pump includes a plunger travel mechanism. Pushers are used with fixed plates. The chamber of the main block has an oblong shape. A shaft is installed in the rear part, which is fixed on the racks. O-rings are required to strengthen the pusher. There is a frame at the bottom of the pump. Special sealing pads are installed under the racks.
The motor can be fixed behind the racks 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 armature of the engine is started, which sets the shaft in motion. Then the rotationpushers. At the same time, the pressure in the chamber of the main unit increases significantly. Rods are used to stabilize the process. They are fixed on pins or plates.
Homemade modifications
How to make a manual rotary water pump with your own hands? A conventional model can be assembled on the basis of a drive motor. It is more expedient to select pushers of small thickness. In the main unit, the rack is installed using a welding machine. Many experts recommend carefully sanding the front of the pump. The shaft of the model is important to fix through the sleeve. Directly the rotary box is installed under the rack.
Pump Types
There are volumetric, vacuum and 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 at stations, but also at wells. Vacuum modifications are distinguished by high power. Adapters for them are selected contact and channel type. Cam devices are considered the most common.
Pushers for models of this type are produced 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 hydroelectric power stations. Their production rate is quite high. The energy consumption parameter depends on the rotor frequency.
Volumetric modifications
At hydropower plantsquite common volumetric rotary pump. The principle of operation of the device is to increase the pressure on the plates. The shaft of the models is used with fittings. To fix the plungers, not only rings are used, but also clamps. Gaskets are always installed to secure the bushing. Controllers for the motor are selected transitional type.
Channel mods are rare these days. Separately, it is important to note that rotary-type pumps with 20 kW motors are on the market. They are great for pumping oils. In terms of dimensions, modifications of the volumetric type are quite different. Pushers in devices are used only of a fixed type, they cannot be removed. There is a good pump (rotary) of a volumetric type 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 the models is based on the conversion of electrical energy. The rotor of modifications is often installed behind the racks. Pumps of this type operate at a frequency of no more than 3 thousand revolutions per minute. Some modifications can boast a high output parameter. The ultimate pressure coefficient does not exceed 3 bar on average.
Dampers 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 liquids of low viscosity. Manyexperts recommend vacuum-type pumps for work in difficult conditions. Use of modifications outdoors is allowed. A good rotary pump costs around 30 thousand rubles.
Cam devices
The cam rotary pump is great for the smooth operation of the stations. The principle of operation (for wells) is based on a change in pressure inside the block chamber. Adapters for models are often used of the contact type, and the pins are used with small jumpers. Many devices are produced without longitudinal pushers. In terms of performance, pumps of this type are not considered the best.
To seal the chamber, bushings are often used, which are clamped with a nut under the chamber. Belt type blocks are rare. Frames are used both with and without body kit. The maximum pressure for pumps of this type starts from 8 bar. There is a good model of low power in the range of 30-40 thousand rubles.
Modifications of the GY1A035F series
This is a quality and efficient rotary pump. The principle of operation, the device of the model should be considered first. At the bottom of the structure is a wide frame, which is connected to the rack. This pump does not have an expander, so the device does not start immediately.
The adapter for the rotor is of the contact type. If we talk about indicators, it is important to note the high level of pressure in the block. camera inThe device is oval in shape. If you believe the experts, then the model is not suitable for hydroelectric power plants. The pumping rate in the device is rather low.
The rotor of the modification is designed for three stages. The box under the motor is used belt type. According to most experts, the pump does not suffer from network failures. Only the plungers need lubrication. Channel-type controllers are used to turn on the pump. Indicator blocks are installed very rarely.
GY1A040F series parameters
This rotary pump is excellent for pumping high viscosity liquids. The device and principle of operation are proposed to be considered first. The motor for modification is selected with a collector. The armature of the modification is used with two windings. The limiting frequency of the model is in the range of 2–2.5 thousand revolutions. There is a cover for inspection of the rotor. The pump of the specified type works from a special controller.
The indicator block is installed through the modulator. According to experts, the rotary box is used with a high-quality protection system. Overloads on the gear unit are very rare. The pushers in the devices are used in the form of a petal. The chamber pressure is about 5 bar. Frame clamps are made entirely of stainless steel. To control pressure, mechanical and digital type pressure gauges are used. The price for this rotary water pump starts from 33 thousand rubles.
Features of the pumps of the "HBP 220" seriesmoto"
The pump (vacuum, rotary) "HBP 220 moto" has many advantages. However, it is important to note that his pushers are channel-type and are not able to boast of fast pumping. The frequency indicator is at the level of 2200 rpm. It is also worth noting that the model has a blocker with a barbell. There is no channel drying filter in this case.
Center unit is used with an adapter. The pump shaft is located under the chamber and is able to withstand heavy loads. Only one fitting is installed above the plunger. There is no adapter for the rotor box in this case. It is also worth noting that the model is great for pumping oils in large quantities. The pump (vacuum, rotary) HBP 220 costs no more than 28 thousand rubles.
Modifications of the Intertool HT 0067 series
Oil pump (manual, rotary, 26l/min) Intertool HT 0067 is considered to be universal and highly valued in the industry. The pushers in the device are used in a round shape, they do a good job of pumping water. The motor for the pump is selected as a 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 block under the camera is small. The limit pressure parameter is only 5 bar. The pump protection system is used in the PK series. If you believe the reviews of experts, then the device does an excellent job of pumping water from wells. pressure gauge in standarddevice not included.
Directly, the rotary box is designed for four steps. The gear unit is applied two-contact type. The total weight of this pump is 28 kg. The dowel pins on this model do not need to be lubricated. Two spacers are used to secure the rod. The price for the specified rotary pump starts from 28400 rubles.
Parameters of SLR series models
The SLR rotary pump is only used in hydro power 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 PK series. A separate output is provided for connecting a pressure gauge. The power of this modification is at the level of 5 kW.
The motor of the model is used with a collector armature for two windings. It is also worth noting that a protective fitting is located at the bottom of the structure. The seal in the main chamber is not provided. The specified rotary pump costs between 30-32 thousand rubles.
Features of KO-505 series pumps
The specified rotary pump is used at stations of different capacities. Many experts say that the model launches quite quickly. The protection system is applied to the RK series. The pushers are round in shape, their resistance index is quite high.
The rated power of the modification is 340W. The device is suitable for pumping water from a well. It is also worth noting that the model has a stopper at the bottom,which helps with high blood pressure. The protective ring is located only in the front of the frame. The price for this rotary pump is from 38 thousand rubles.
