- The speed of action, m3/h: 4.5
- Pump type: Plade-roting
- Gabarit dimensions, mm: 334x128x222
- Engine power, KW: 0.25
- Input DU: 16
- Output: 16
Description of the vacuum plate-roting pump NVR-4.5d
Vacuum lacrimato-roting NVR-4.5D is designed for pumping from hermetic vessels the air and the design of explosive -fire -haired non -toxic gases, vapors and steam -gas mixtures that are previously cleaned of drip over and mechanical pollution, with oxygen content (21 % in volume) under normal conditions, from atmospheric pressure to the design of atmospheric pressure to the working fluid. The maximum residual, at a pressure in the output cross section that does not exceed atmospheric, more than 9.3 kPa (70 mm Hg).
Type of climatic performance of the vacuum pump NVR-4.5D mind 4 according to GOST 15150- 69, but at an ambient temperature and pumped out from 283 to 308 K (from plus 10 0 C to plus 35 0 C). Requirements for the quality of electricity under GOST 13109-97. Vacuum plate-rut-roting NVR-4.5D pump complies with the requirements of technical conditions TU 3648-006-00218526-2002
HACOC NVR-4.5D is seasoned with Vacma Oil 100 working fluid. Control of the level of working fluids according to the oil indicator, replenishment at the level of working fluid below the minimum level of the oil indicator.
The principle of operation of the plate-roting pump NVR-4.5d
The vacuum NACOC HBP-4.5D is a monoblock structure mounted on the central rack, on the one side of which an electric motor is attached, on the other hand-a pump. The stand is fixed on the basis. Four shock absorbers are inserted into the base. There is a pen for carrying the pump on the rack. At the top of the rack there are a fitting and a gas -tank device designed to prevent condensation of water vapor during pumping vapor and steam -gas mixtures. Inside the fitting, a filter is installed, which prevents solid particles entering the pump. To join the fitting to the workshop, there is a rapidly supporting clamp.
On the upper plane of the pump housing there is a cork for filling the working fluid. The cork has radial holes through which the exhaust gas is exhausted directly into the room. If it is necessary to remove the pumped gas from the room, instead of a cork, an olive with a seal or a filter can be installed, which is supplied with the pump at the request of the consumer. At the end of the case there is an oil indicator for monitoring the level of working fluid and a plug for draining the working fluid.
The rotors and plates are located in the cylinders between the lids. The rotor, plates, cylinder, back cover and middle lid form the first step, and the rotor, plates, cylinder, front cover and middle lid are the second step. The covers and cylinder of the first stage are fixed with each other with cylindrical pins, covers and cylinder of the II stage - conical pins. The cylinder and lids are pulled together with bolts and studs, forming work blocks that are attached to the rack with two studs. Each PAPA plates in the rotor is taken to the inner surface of the cylinder by springs. The rotation from the electric motor to the rotor of the II stage is transmitted using the liner. The rotor of the LL stage leads to rotation of the I stage rotor through the cross. The rotors rotate in the bearings of sliding placed in the lids. The cavities of the chambers of the first and second steps are connected by a sequential bypass channel in the middle cover. The tightness of the first and second steps is ensured by the accuracy of the processing of the end surfaces of the cylinder and covers.
In order to prevent leaks of working fluid and air leakage from the atmosphere into the cylinder, the Potopa II step is compacted by the cuff. On the cylinders of both steps are exhaust valves. Each valve is installed in the case and is taken to the saddle by a spring. The oil capture system consists of a filter and channels for the delivery of the working fluid to the working elements of the pump. The working fluid due to the pressure drop across the canal in the front cover enters the cuff space and into the front cover bearing. Next, through a calibrated hole that determines the consumption, into the working cavity. II Dress. From the LL stage cylinder-to the working cavity of the 1st stage in the gaps in the bearings in the middle cover.
The gas -tank device is a coater equipped with a return valve and consists of a corps with a cork and seals. To get air through a gas supply device, it is necessary to unscrew the plug by 3-4 revolutions. Air, through the radial holes in the cork and channels located in the rack and front cover, enters the working cavity of the II stage. The air consumption through the gas -beam device is determined by the calibrated hole in the front cover. The cooling of the pump is forced air and is carried out due to the intensive flow of the ribs of the rack and the case with the air coming from the impeller of the electric motor.
Advantages of the vacuum pump NVR-4.5d
-
Low noise
-
Effective oil distribution
-
High reliability of the pump
-
PecyPC before the first major overhaul of 12500 hours for 3 years, including the storage period of 1 year in the packaging of the manufacturer in storage rooms
-
Warranty service life -12 months with warranty production not exceeding 2500 hours
The operational characteristics of the vacuum pump NVR-4.5d
-
According to the method of protecting a person from electric shock, the pump refers to electrical equipment of the 1st class according to GOST 12.2.007.0-75.
-
The resistance of the insulation of the winding of the electric motor should be at least 0.5 MOM.
-
Exceeding the temperature of the pump body operating at maximum residual pressure, a plus of 30 ° C, working fluid - plus 60 ° C
can reach the temperature of the environment.
-
When pumping vapors of water and steam -gas mixtures, it is recommended to install traps - sump (one from the side of the entrance and exit) for the collection of condensate, which can form in pipelines.
-
A more frequent change in the working fluid is recommended if the pump works in conditions that cause rapid pollution and coking of the working fluid (dustiness, humidity).
-
The first replacement of the working fluid should be carried out after 100 hours of the pump, and in the future after 2500 hours.
-
The circuit breaker for the nominal current select 0.8a with an electromagnetic and thermal release that has a protection class - I according to GOST 12.2.007.0-75.
-
Sound pressure levels in octave frequency bands created by pumps at a distance of 1 m from their contour should not exceed the values established by GOST 12.1.003-83
The main parameters of the vacuum pump NVR-4.5d
On the upper plane of the pump housing there is a cork for filling the working fluid. The cork has radial holes through which the exhaust gas is exhausted directly into the room. If it is necessary to remove the pumped gas from the room, instead of a cork, an olive with a seal or a filter can be installed, which is supplied with the pump at the request of the consumer. At the end of the case there is an oil indicator for monitoring the level of working fluid and a plug for draining the working fluid.
The rotors and plates are located in the cylinders between the lids. The rotor, plates, cylinder, back cover and middle lid form the first step, and the rotor, plates, cylinder, front cover and middle lid are the second step. The covers and cylinder of the first stage are fixed with each other with cylindrical pins, covers and cylinder of the II stage - conical pins. The cylinder and lids are pulled together with bolts and studs, forming work blocks that are attached to the rack with two studs. Each PAPA plates in the rotor is taken to the inner surface of the cylinder by springs. The rotation from the electric motor to the rotor of the II stage is transmitted using the liner. The rotor of the LL stage leads to rotation of the I stage rotor through the cross. The rotors rotate in the bearings of sliding placed in the lids. The cavities of the chambers of the first and second steps are connected by a sequential bypass channel in the middle cover. The tightness of the first and second steps is ensured by the accuracy of the processing of the end surfaces of the cylinder and covers.
In order to prevent leaks of working fluid and air leakage from the atmosphere into the cylinder, the Potopa II step is compacted by the cuff. On the cylinders of both steps are exhaust valves. Each valve is installed in the case and is taken to the saddle by a spring. The oil capture system consists of a filter and channels for the delivery of the working fluid to the working elements of the pump. The working fluid due to the pressure drop across the canal in the front cover enters the cuff space and into the front cover bearing. Next, through a calibrated hole that determines the consumption, into the working cavity. II Dress. From the LL stage cylinder-to the working cavity of the 1st stage in the gaps in the bearings in the middle cover.
The gas -tank device is a coater equipped with a return valve and consists of a corps with a cork and seals. To get air through a gas supply device, it is necessary to unscrew the plug by 3-4 revolutions. Air, through the radial holes in the cork and channels located in the rack and front cover, enters the working cavity of the II stage. The air consumption through the gas -beam device is determined by the calibrated hole in the front cover. The cooling of the pump is forced air and is carried out due to the intensive flow of the ribs of the rack and the case with the air coming from the impeller of the electric motor.
Advantages of the vacuum pump NVR-4.5d
-
Low noise
-
Effective oil distribution
-
High reliability of the pump
-
PecyPC before the first major overhaul of 12500 hours for 3 years, including the storage period of 1 year in the packaging of the manufacturer in storage rooms
-
Warranty service life -12 months with warranty production not exceeding 2500 hours
The operational characteristics of the vacuum pump NVR-4.5d
-
According to the method of protecting a person from electric shock, the pump refers to electrical equipment of the 1st class according to GOST 12.2.007.0-75.
-
The resistance of the insulation of the winding of the electric motor should be at least 0.5 MOM.
-
Exceeding the temperature of the pump body operating at maximum residual pressure, a plus of 30 ° C, working fluid - plus 60 ° C
can reach the temperature of the environment.
-
When pumping vapors of water and steam -gas mixtures, it is recommended to install traps - sump (one from the side of the entrance and exit) for the collection of condensate, which can form in pipelines.
-
A more frequent change in the working fluid is recommended if the pump works in conditions that cause rapid pollution and coking of the working fluid (dustiness, humidity).
-
The first replacement of the working fluid should be carried out after 100 hours of the pump, and in the future after 2500 hours.
-
The circuit breaker for the nominal current select 0.8a with an electromagnetic and thermal release that has a protection class - I according to GOST 12.2.007.0-75.
-
Sound pressure levels in octave frequency bands created by pumps at a distance of 1 m from their contour should not exceed the values established by GOST 12.1.003-83
- According to the method of protecting a person from electric shock, the pump refers to electrical equipment of the 1st class according to GOST 12.2.007.0-75.
- The resistance of the insulation of the winding of the electric motor should be at least 0.5 MOM.
- Exceeding the temperature of the pump body operating at maximum residual pressure, a plus of 30 ° C, working fluid - plus 60 ° C can reach the temperature of the environment.
- When pumping vapors of water and steam -gas mixtures, it is recommended to install traps - sump (one from the side of the entrance and exit) for the collection of condensate, which can form in pipelines.
- A more frequent change in the working fluid is recommended if the pump works in conditions that cause rapid pollution and coking of the working fluid (dustiness, humidity).
- The first replacement of the working fluid should be carried out after 100 hours of the pump, and in the future after 2500 hours.
- The circuit breaker for the nominal current select 0.8a with an electromagnetic and thermal release that has a protection class - I according to GOST 12.2.007.0-75.
- Sound pressure levels in octave frequency bands created by pumps at a distance of 1 m from their contour should not exceed the values established by GOST 12.1.003-83
The main parameters of the vacuum pump NVR-4.5d
| Pumps | |
| Power/speed | 2,2/1500 |
| Flow, cubic meters/hour | 18 |
| pressure | 5*10(-2) |
