SU1566102A1 - Pneumatic system - Google Patents

Abstract

The invention can be used in pneumatic systems of vehicles. The purpose of the invention is to increase the reliability of the pneumatic system. Compressor 1 is connected by a pneumatic line (PL) of injection with a check valve (K) 3 and PL 4 of suction with high and low pressure receivers 5, 6. Pneumatic 7 communicated through the valves 8 with receivers 5, 6 PL 9, 10 supply and discharge. The compensation channel 11, in which the filter 12 and the return K 13 are installed in series, informs the PL 10 with the atmosphere. Channel 11 is provided with a leak detection sensor 19. The controlled safety valve K 14 communicates inlet 15 K 3 with the receiver 6. The cavity 16 of the control K 14 communicates with the outlet 17 K 3. The air preparation unit 18 is installed in the submarine 9. The air passage through the unit 18 maintains its composition at the required level. The inflow of air from the atmosphere through channel 11 with filter 12 does not significantly affect its composition. 2 hp f-ly. 1 il.

Description

The invention relates to mechanical engineering, in particular, can be used in pneumatic systems of machine tools, automatic lines, as well as air systems of various means of transport.

The purpose of the invention is to simplify the design, increase efficiency and reliability, as well as ease of maintenance.

The drawing shows a constructive diagram of the pneumatic system.

The pneumatic pneumatic compressor contains a compressor 1, connected by pneumatic joints 2 to a check valve 3 and suction 4, respectively, to a high pressure receiver 5 and a low pressure receiver 6, pneumatic engine 7, communicated through distributors 8 to the last pneumatic line 9 and reset 10. The pneumatic system is also equipped with a compensation channel 11 with a filter 12 and a second non-return valve 13 sequentially installed therein, with a pneumatic line 10 discharged with the atmosphere, and a controlled safety valve 16 communicating the first return inlet 15 valve 3 with a low pressure receiver 6, and its control cavity 16 communicates with the outlet 17 of the first check valve 3. In addition, the pneumatic system is equipped with an air preparation unit 18 installed in the pneumatic line 9 of the inlet. The compensation channel I 1 is equipped with a leak monitoring sensor 18. The pneumatic system is also equipped with shut-off valves 20 and 21, drain valves 22 and 23, and a pressure gauge 24. The pneumatic system operates as follows.

The compressor 1 is turned on, the safety valve 14 is adjusted to a certain pressure, controlled by the pressure gauge 24, and through the compensation channel 11, as well as the open valve 21 and the receiver 6, the compressor sucks air into the system, bringing the pressure in the receiver 5 to a predetermined value. The set pressure obtained in the receiver 5 provides the actuation of the valve 14 through the control line, as a result of which the discharge port of the compressor 1 is connected to the pneumatic line 10 through the valve 14, thereby creating atmospheric pressure in it and the receiver 6, while the check valve 13 closes and breaks the bond of the pneumatic line with the atmosphere, and the reverse

0

Q

5-jq.

45 5Q valve 3 prevents the passage of air from receiver 5 to pneumatic line 10 through valve 14. The system is ready for operation,

From the compressor 1, high-pressure compressed air enters the high-pressure receiver 5. Condensate (a mixture of oil and water) settling on the walls of the receiver can be drained through the drain valve 22. From receiver 5 through the open air valve 20 enters the air preparation unit 18, where it can be either cleaned, dried and saturated with oil, or it is cleaned and the oil and moisture separated from it. Then the air enters the pneumatic distributors 8 and through them into the pressure cavities of the pneumatic motors 7. From the latter, through the exhaust ports of the pneumatic distributors 8, the air enters the pneumatic line 10 of the exhaust air, and then through the open valve 21 and the receiver 6 again into the compressor 1. Deposited in the receiver 6 condensate is poured through valve 23. Leaks arising from the operation of consumers (leaks in: mobile seals, pipe joints) are compensated by additional leakage through the compensation channel 11, filter 12, Occupancy control 19 leaks and the check valve 13. The increase in the sensor readings above 19 preassigned value representative of allowable leakage in the system, signals depressurization system, in particular the wear of the movable seals. The safety valve 14 maintains a certain pressure in the receiver 5, and the excess air, after the specified pressure in the receiver 5 has been reached, flows through the opened valve 14 into the receiver 6 and again into the compressor I. Thus, in this case, the compressor is idling power pumped by edukh from receiver 6 into it.

Periodic passage of all the air in the system through the air preparation unit 18 brings it to the required qualitative composition and maintains this composition at the required level. Minor air leaks from the system, and therefore air is sucked from the atmosphere through the compensation channel,

Claims (3)

1. A pneumatics system, containing a com press, connected by pneumatic lines to a check valve and suction, respectively, to a high pressure receiver and a low pressure receiver, air motors communicated through distributors with the last supply and discharge pneumatic lines, characterized in that , in order to simplify the design, increase efficiency and reliability, as well as ease 20 It is equipped with a compensation channel with a filter and a second non-return valve sequentially installed in it, which communicates the discharge pneumatic line with the atmosphere and is controlled by a safety valve informing the input of the first non-return valve to the low-pressure receiver, and its control cavity communicates with the output of the first non-return valve . 2. The pneumatic system of p. Is distinguished by the fact that it is equipped with an air preparation unit, installed. innovated in pneumatic supply lines. 3. The pneumatic system in accordance with clauses I and 2, which means that the compensation channel is equipped with a leakage monitoring sensor. Compiled by I.Vasilyeva Editor E.Papp Tekhred L.Oliynyk. Proofreader M.Maksimishinets Order 1210 Circulation 526 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab., D. V5 Production and Publishing Combine Patent, Uzhgorod, Gagarin St. 101 Subscription