Schematic diagram of a pneumatic compressor 4vu 5 9. Pistons and piston pins

5.1 Compressor

The compressor consists of the following main components: crankcase, cylinder blocks, crankshaft, connecting rods, pistons, valve heads and fan.

The principle of operation of the compressor is as follows: the compressor, driven by a drive through a flexible coupling, sucks in air through the air filters, and compressing it in cylinders 1 and II of the stages with cooling in an intermediate cooler, pumps compressed air into the air collector, from where the latter enters the consumer .

5.2 Arrangement of compressor units

5.2.1 Carter

The cast iron crankcase has a rigid structure. 2 bores for installing the crankshaft, 2 hatches for access to the lower heads of the connecting rods and two mating planes in the upper part for installing the cylinders.

A breather is installed on the crankcase to equalize the pressure in the crankcase with atmospheric pressure, and to fill oil into the crankcase.

5.2.2 Crankshaft

Stamped steel crankshaft with cast-iron counterweights fixed on the cheeks, designed to balance the compressor.

The double-crank shaft is mounted in the bores of the crankcase on tapered roller bearings. The crankshaft journals are located at an angle of 180°.

At the ends of the shaft there is a pulley for driving the fan on one side, and a flywheel on the other side. On the necks of the knees of the shaft there are 2 connecting rods, the upper heads of which are connected to the pistons of the 1st and 2nd stages.

5.2.3 Connecting rods

Connecting rods steel stamped I-section. The upper head of the connecting rod is one-piece with a pressed bronze bushing. The lower head is detachable filled with babbitt. An oil supply tube is installed on the cover of the lower head.

5.2.4 Pistons and piston pins

The 1st and 2nd stage pistons have two O-rings and two oil scraper rings.

Piston pins of floating type, hollow, with outer surface hardening and polishing. Fingers are kept from axial movements by spring retaining rings.

5.2.5 Cylinders

The compressor cylinders are cast iron, with a ribbed surface, cast in pairs in the form of blocks with flanges at the top and bottom. The blocks are attached to the crankcase by the lower flanges, valve heads, valve boxes and covers are installed on the upper ones.

5.2.6 Valve boxes

Cast iron valve boxes are separated inside by a partition separating the suction side from the discharge side. The valve boxes have suction and discharge pipes.

Valve covers are cast iron, with ribs on the surface to intensify cooling.

5.2.7 Valve heads

Valve heads 1 and 2 stages are identical in design and differ only in size. They consist of valve plates with suction and discharge valves assembled on them. During operation of the compressor, under the action of the suction and discharge air, the plates, respectively, of the suction and discharge valves, are pressed out and open the passage for air.

5.2.8 Fan

The axial fan is mounted on a bracket mounted on the crankcase and is designed to intensify the cooling of the cylinders and cooler. The fan drive is carried out from the crankshaft of the compressor through a V-belt transmission with a gear ratio of 1:2.06.

The belt tension is carried out by a tension bolt.

ATTENTION!!! In Russia, there are already examples of fakes of 4VU1-5/9 compressors, if the process is not stopped, it is easy to predict. So, our plant, which has been operating for almost 60 years in the compressor equipment market and today is successfully entering the international market, recently encountered the activities of dishonest competitors. Young "one-day plants" like Compressor Plant LLC, there are 6-7 pieces of such "young one-day plants" LLC, not OJSC, on the territory of the Russian Federation by this name. On the Federal website, you can check the date of creation of these "one-day plants" (they are not older than 2 years), size authorized capital(they have no more than 10,000 rubles), information about the main type of activity (they only sell all sorts of rubbish, they don’t even talk about the production of compressors), how many companies are open for the "directors" of these "one-day factories" (at least 3-4 fly-by-night companies), etc., as well as Borets Compressor Plant LLC, KompressorMash LLC, YugMash LLC, Compressor Technologies LLC, etc. (you can see their history on the website of the Arbitration Court of the Russian Federation and on the Federal website of judicial bailiffs) counterfeiting our compressors. They assemble compressors 4VU1-5/9 from parts of compressors previously produced by our factory and offer their customers under the guise of a new compressor. These compressors do not comply with specifications and safety standards. Be sure to check the authenticity of the TS certificates (not an invented or a voluntary certificate) on the Federal website of the Federal Accreditation Service of the Russian Federation.Respect yourself, do not buy a used, remanufactured 4VU1-5/9 compressor at the price of a new one.

The compressor station KSBU-4VU1-5/9 is used to supply compressed air, excess pressure of 0.78 MPa (8 kgf/cm 2) to pneumatic control systems for small-scale mechanization of drilling rigs.

Compressor KSBU-4VU1-5/9 consists of a compressor mounted on a welded frame made of shaped steel, an electric motor and a 1st stage cooler with a fan guard.

The compressor is mounted on the frame of the drilling rig and secured with clamping bars. The power from the transfer case pulley is transmitted to the compressor pulley using V-belts covered with a casing. Switching on is carried out from the driller's control panel using the "Compressor" handle. Compressed air from the air collector to the rotator stuffing box is transmitted through a discharge hose with a diameter of 50 mm. To adjust the tension of the compressor belts, a V-belt tensioning system is provided.

Compressor 4VU1-5/9

Compressor 4VU1-5/9 M4 (M1, M2, M3, M4, M5, M6, M7)

Compressor 4VU1-5/9

Compressor 4VU1-5/9 M4 are compressors of general industrial design with an electric motor on a common frame.
Designed for compressed air supply low pressure(0.88-0.98 MPa (9-10 kg / cm2)) of pneumatic tools and devices, mechanisms, air ducts and units in the printing industry, at the facilities of the petrochemical, gas, metallurgical, electrochemical, refrigeration, mining industries, as well as in production of drilling operations (in a temperate climate).
Piston compressors, V-shaped, 4-cylinder, 4-row, 2-stage, single action. Driven by an electric motor through a flexible coupling. Splash lubrication. Cooling of cylinders, unloading and discharge of condensate are automatic. Equipped with automation and emergency protection system.
You can buy new compressors 4VU1-5/9 from us.
The automatic control system provides:
Two ways to control performance:
- start-stop;
- bypassing air to suction without stopping the compressor;
- unloading of the compressor at start-up with simultaneous purging of the intermediate cooler;
- emergency protection for compressed air overheating;
- automatic start-up of the backup compressor when the pressure in the air collector drops by 10%;
- light signaling in case of an emergency stop of the compressor indicating the cause;
- the ability to work in long-term mode (PV 100%).

Explanation of the compressor designation 4VU1-5/9 m4:
4 - number of compressor rows;
B - compressible gas - air;
U - compressor type - angular;
1 - piston base force - 1 ton;
5 - volumetric productivity according to suction conditions, m3/min;
9 - final absolute pressure, kgf/cm2;
M4 - a kind of compressor modification, depending on climatic design and composition of the product.

Compressor 4VU1-5/9 (4VU1-5/9 M32, 4VU1-5/9 M42, 4VU1-5/9 M62, 4VU1-5/9 M72, 4VU1-5/9 M82, 4VU1-5/9 M92) are designed for:
compressed air supply to pneumatic tools, fixtures, mechanisms, air ducts and units at petrochemical, gas, metallurgical, electrochemical, mining and other industries, as well as for pneumatic transport of bulk materials (sand, cement, grain, etc.) use at oil drilling installations

Compressors 4VU1-5/9 are used in:
- as part of oil and gas drilling rigs;
- at machine-building enterprises;
- at the facilities of petrochemical, gas, metallurgical, electrochemical, mining and other industries.

Compressors 4VU are piston, U-shaped, 4-cylinder, 4-row, 2-stage, single action. Driven by an electric motor through a flexible coupling. Forced and splash lubrication. Air cooling of cylinders and cooler. Unloading and discharge of condensate are automatic. Equipped with automation and emergency protection system.
In 2001, the 4VU compressor underwent the following changes:
- as a result of the installation of the oil pump, the lubrication of rubbing parts with oil mist was replaced by forced lubrication, which significantly increased the wear resistance of the connecting rod journals, crankshaft bearings, piston pins, etc.;
- a new design of the heat exchanger was developed, which improved the design of the compressor;
- for operation in the conditions of the Far North at temperatures down to -40°C, an oil heating system in the crankcase was developed.

ATTENTION!!! In Russia, there are already examples of fake compressors, if the process is not stopped, it is easy to predict. Thus, our plant, which has been operating in the compressor equipment market for almost 60 years and is now successfully entering the international market, has recently encountered the activities of dishonest competitors. Young "one-day plants" like Compressor Plant LLC, there are 6-7 pieces of such "young one-day plants" LLC, not OJSC, on the territory of the Russian Federation by this name. On the Federal website, you can check the date of creation of these "one-day factories" (they are not older than 2 years), the size of the authorized capital (they have no more than 10,000 rubles), information about the main type of activity (they only sell all sorts of rubbish, about production of compressors is out of the question), how many firms are open for the "directors" of these "one-day plants" (at least 3-4 one-day firms), etc., also Borets Compressor Plant LLC, KompressorMash LLC, YugMash LLC , LLC Compressor Technologies, etc., (you can see their history on the website of the Arbitration Court of the Russian Federation and on the Federal website of bailiffs), counterfeiting our compressors They assemble compressors from parts of compressors previously produced by our plant and under the guise of a new compressor offer to their customers. These compressors do not comply with specifications and safety standards. Be sure to check the authenticity of the CU certificates (not an invented declaration or a voluntary certificate) on the Federal website of the Federal Accreditation Service of the Russian Federation. Respect yourself, do not buy used, in Remanufactured compressor for the price of a new one.

P.S. One of best ways to protect yourself from an unscrupulous supplier is NOT to cooperate with him.

To find out about the availability and exact cost of 4VU 1-5/9 M2 compressors, call us or write to the "Online Consultant".
Also write your questions on technical information.
Our managers will answer questions during the day.
We guarantee an individual approach to each client and fast delivery.

The company "Melcom Trading" offers the opportunity to buy a compressor 4VU1-5/9 - a low-pressure unit, which is widely used as a compressed air production unit as a resource for the operation of pneumatic tools, equipment, mechanisms, as well as the transportation of bulk products. It can only be installed indoors.

4VU 1-5/9 - two-stage installation with a three-phase asynchronous electric drive connected through a flexible coupling with forced lubrication and air cooling. The designation of the compressor type suggests that in this case we are talking about a 4-row unit of an angular design, which can only work on air compression. Enterprises are the main area of ​​their application.

• oil and gas and petrochemical industry,
• mining and engineering industry,
• metallurgy.

The 4VU air piston compressor is designed to compress air with an overpressure of 8 kg/cm2. Technical specifications compressor 4 VU devices make it suitable for use in drilling rigs, as well as in numerous other industries. If you are planning to buy a 4VU series compressor, then you need to choose the model that will meet your requirements and characteristics, since they differ in piston force, volumetric efficiency and final pressure.

The design of the 4VU 5/9 compressor includes a crankshaft with counterweights to reduce vibration. At the ends of the compressor shaft 4VU 5 9, seats are provided for the fan pulley and flywheel.

Pig-iron pistons of the compressor 4VU1-5/9 are completed with sealing rings.

If you want to buy air compressor 4ВУ1-5/9, then you can contact our managers in Moscow, Yekaterinburg, Belgorod, Krasnoyarsk and other cities to clarify the price and complete set that meets your requirements.

Control and automation

The 4VU1-5/9 air compressor is distinguished by high reliability and unpretentiousness in operation, its set of automation and electronic control systems makes it possible to provide comfortable work for operating personnel without the need for constant monitoring of equipment. The unit is protected by systems

• automatic maintenance of pressure in the receiver within the range specified by the settings by starting and stopping the compressor;
• electric heating in the compressor oil crankcase (in the case of equipment designed for operation in cold climates);
• blowing and unloading the compressor unit when it is turned off;
• protection against overheating of compressed air by emergency stop;
• manual unloading from the control panel;
• protection against a drop in lubricating fluid pressure below the maximum allowable value.

Call our managers in Moscow, Yekaterinburg, Novosibirsk, Ufa and other cities - we are always ready to answer any questions about the compressor 4VU 1-5/9, as well as modifications - the compressor 4v1 5 9m (such as the compressor 4v1 5 9m1 and 4v1 5 9m2 ).

If you decide to buy a compressor 4v1 5 9 - be sure to ask for our price! We are sure that our conditions will be more profitable!

Compressor station serves to supply compressed air, excess pressure of 0.78 MPa (8 kgf / cm 2) to pneumatic control systems for small-scale mechanization of drilling rigs.

Compressor 4VU1-5/9 consists of a compressor mounted on a welded frame made of profiled steel, an electric motor and a cooler of the 1st stage with a fan guard.

The compressor is mounted on the frame of the drilling rig and secured with clamping bars. The power from the transfer case pulley is transmitted to the compressor pulley using V-belts covered with a casing. Switching on is carried out from the driller's control panel using the "Compressor" handle. Compressed air from the air collector to the rotator stuffing box is transmitted through a discharge hose with a diameter of 50 mm. To adjust the tension of the compressor belts, a V-belt tensioning system is provided.

Compressor 4VU1-5/9 M4 - these are compressors of general industrial design with an electric motor on a common frame.
Designed to supply low-pressure compressed air (0.88-0.98 MPa (9-10 kg/cm2)) to pneumatic tools and devices, mechanisms, air ducts and units in the printing industry, at petrochemical, gas, metallurgical, electrochemical, refrigeration facilities , mining industry, as well as in the production of drilling operations (in a temperate climate).
Piston compressors, V-shaped, 4-cylinder, 4-row, 2-stage, single action. Driven by an electric motor through a flexible coupling. Splash lubrication. Cooling of cylinders, unloading and discharge of condensate are automatic. Equipped with automation and emergency protection system.
You can buy new compressors 4VU1-5/9.
The automatic control system provides:
Two ways to control performance:
- start-stop;
- bypassing air to suction without stopping the compressor;
- unloading of the compressor at start-up with simultaneous purging of the intermediate cooler;
- emergency protection for compressed air overheating;
- automatic start-up of the backup compressor when the pressure in the air collector drops by 10%;
- light signaling in case of an emergency stop of the compressor indicating the cause;
- the ability to work in long-term mode (PV 100%).

Explanation of the compressor designation 4VU1-5/9 m4:
4 - number of compressor rows;
B - compressible gas - air;
U - compressor type - angular;
1 - piston base force - 1 ton;
5 - volumetric productivity according to suction conditions, m3/min;
9 - final absolute pressure, kgf/cm2;
M4- a kind of modification of the compressor, depending on the climatic version and the composition of the product.

Compressor 4VU1-5/9(4VU1-5/9 M32, 4VU1-5/9 M42, 4VU1-5/9 M62, 4VU1-5/9 M72, 4VU1-5/9 M82, 4VU1-5/9 M92) are designed for:
compressed air supply to pneumatic tools, fixtures, mechanisms, air ducts and units at petrochemical, gas, metallurgical, electrochemical, mining and other industries, as well as for pneumatic transport of bulk materials (sand, cement, grain, etc.) use at oil drilling installations

Typical accessory of the compressor 4VU1-5/9

Compressors 4VU1-5/9 piston, V-shaped, 4-cylinder, 4-row, 2-stage, single-acting.
Driven by an electric motor through a flexible coupling.
Splash lubrication.
Cooling of cylinders and Unloading and discharge of condensate are automatic.
Equipped with automation and emergency protection system.
In 2001, the 4VU compressor underwent the following changes:
- as a result of the installation of the oil pump, the lubrication of rubbing parts with oil mist was replaced by forced lubrication, which significantly increased the wear resistance of the connecting rod journals, crankshaft bearings, piston pins, etc.;
- a new design of the heat exchanger was developed, which improved the design of the compressor;
- for operation in the conditions of the Far North at temperatures up to -40 ° C, an oil heating system in the crankcase was developed

Compressors 4VU1-5/9 designed to supply compressed air to pneumatic tools, fixtures, mechanisms; work in systems of pneumatic transportation of loose materials (sand, cement, grain, etc.).
Apply:
as part of oil and gas drilling rigs;
at machine-building enterprises;
· on objects of petrochemical, gas, metallurgical, electrochemical, mining and other industries.
Piston compressors, four-cylinder, two-stage. Driven by an electric motor through a flexible coupling. Lubrication is forced. Air cooling of cylinders and cooler. Unloading and discharge of condensate are automatic.

The compressors are equipped with an automatic control and protection system that provides:
automatic maintenance of pressure in the receiver within the specified limits by starting and stopping the compressor, as well as bypassing air from discharge to suction;
unloading and purging the compressor when it stops;
Electric heating of oil in the crankcase (for the northern version);
Possibility of blowing and unloading the compressor from the control panel in manual mode;
· an emergency stop at an overheat of compressed air;
emergency stop when the pressure in the lubrication system drops below the permissible value.
Delivery of compressors with relay or microprocessor automatic equipment is possible.

Compressor 4VU1-5/9 M4 (M1, M2, M3, M4, M5, M6, M7):

Compressor modifications 4VU1-5/9: M2, M3, M4, M6 designed to supply compressed air with an absolute pressure of 0.88 MPa (9 kgf / cm 2) to pneumatic tools, devices, mechanisms, air ducts and units in the printing industry, at petrochemical, gas, metallurgical, electrochemical, refrigeration, mining industries, as well as in the production of drilling rigs work (in a temperate climate).

Compressor modifications 4VU1-5/9: M7, M8, M9 designed for operation on drilling rigs in various climatic conditions at temperatures from -400C to +400C.
The compressors are equipped with an automatic control system for the on-duty electrical heating of the oil in the crankcase.

Technical characteristics of the compressor 4VU1-5/9

The automatic control system provides: two ways to control performance: 1. start-stop; 2. bypassing air to suction without stopping the compressor; unloading of the compressor at start-up with simultaneous purging of the intermediate cooler; emergency protection for compressed air overheating; automatic start of the backup compressor when the pressure in the air collector drops by 10%; the ability to work in long-term mode (PV 100%).

List of spare parts for compressor 4VU1-5/9:

12.1 Before starting the compressor, after performing the work provided for in Section 2, it is necessary:

a) check the oil level in the crankcase using the oil gauge, top up if necessary;

b) turn on the compressor in automatic mode;

When the pressure in the air collector is lower than the minimum (start pressure) according to the pressure switch, the compressor should start, a light signal is given to the control panel;

If the air pressure is above the minimum, it must be reduced to the minimum;

in) check the capacity control by stopping, for which it is necessary to increase the pressure in the air collector to the maximum by closing the outlet valve. In this case, the compressor should automatically stop with the simultaneous activation of purge and unloading (bypass).

The valves remain on during the entire time of inactivity of the compressor and turn off automatically at the next start of the compressor (when the pressure drops to the minimum);

G) check capacity control by bypass, for
after which the switch for selecting the method of regulating the capacity on the control panel should be moved to the “Bypass” position.

Raise the air pressure in the air receiver to maximum. At the same time, the purge is turned on and the bypass valve opens, the compressor starts to work on bypass;

e) alternately check the emergency protection for overheating of the 1st and 2nd stages of the compressor, for which it is necessary to stop the compressor in accordance with clause 11.6.

Unscrew the temperature sensors (stages 1 and 2), place them alternately in a bath with preheated oil to a depth of at least 20 mm and slowly heat in the bath until fully heated (at least 10 minutes). Switch on the compressor to run without load.

When the temperature rises to 180 ± 5 ° С, the compressor must stop with the inclusion of purge and unloading, while a light signal is emitted to the control panel (CCUS) "Overheating 1 stage." or "Overheat 2 st." depending on the accessory, the sensor being tested.

At the end of the test, screw the sensors back into place,

e) start the compressor in automatic mode:

12.2 Compressor maintenance during operation (every shift)

When servicing the compressor, you must:

a) control the oil level in the crankcase, which should not be lower than the lower mark on the oil gauge; add oil to the crankcase through a funnel with a mesh into the compressor breather;

b) as the filter elements (cloth) of the air filters become dirty, they must be washed from dirt with any washing solution;

in) every 4-5 hours of continuous operation of the compressor, purge by pressing the "Purge" button on the control panel;

G) in the event of a compressor shutdown due to an emergency protection operation, the maintenance personnel, having found out the cause of the malfunction, should shine a signal, turning off the power to the control panel. To carry out troubleshooting work, it is necessary to turn off the power to the compressor at the switchboard;

e) control the pressure according to the readings of manometers. The pressure in stage 1 should be 0.17-0.22 MPa (1.7-2.2 kgf / cm2), pressure in stage 2 - 0.78 MPa (8 kgf / cm2);

e) monitor the tightness of the connections and, if any leaks are found, eliminate them, while tightening nuts and bolts on a running compressor is not allowed;

and) at least 2 times a day it is necessary to blow the air collector; in winter time the air collector must be purged before each long stop of the compressor in order to prevent moisture freezing in it;

h) daily check the safety valves by forcibly opening them under pressure. After closing, the valve must remain completely tight;

and) check and, if necessary, adjust the belt tension with the adjusting bolt on the fan. Belt deflection under a force of 4 kgf/cm should be within 15 ± 20 mm;

to) check the tightness of the nuts on the impeller and fan shaft.

12.3 When working on manual control in the cases provided for in clause 7.4. it is necessary to carry out measures in accordance with paragraph 12.1 and paragraph 12.2 a), b), c) and e-l), while monitoring the pressure must be regular.

12.4 Stopping the compressor

12.4.1. The compressor is stopped in accordance with clause 11.6.

12.4.2 . If the compressor operates in an unheated room and does not use the oils specified in paragraph 11.1, during the winter season, when stopping for a long time, it is necessary to drain the oil from the crankcase.