SU1634828A1 - System of emergency protection of compressor plant - Google Patents

Abstract

The invention relates to these topics of the anry protection of screw i Compressor stations and improves the safety and efficiency of the rbog systems. On the 5 line of the discharge of the screw compressor (K) 1 and at the outlet of the oil separator 4 are installed the smooth switches connected pneumolini 13 and 14 through two-position indicators 22 and 23 with a working cavity 7 of a piston device 6 interacting with a push-button no. The invention relates to compressor engineering and can be used in mine compressor stations with screws Purpose of the Invention — Improving Safety and Efficiency FIG. 1 shows a diagram of a compressor station in FIG. 2 — a two-valve valve for switching off the engine K 1 Kmzrr-suction (K B) 2 connected to the oil seal 11 with a working polyp 1 piston organizer 6 through a two-part v valve (DK) triggered when pressure is applied n KB 7 above the hole in cavity 3 of the end of hedgehog i and K 1, which is generated when the rotation is done, KT on K 1 one shtokr avuu on |) sh i pi paiMr I k to in the case with about One of the cohorts of the outer YUSTERI communicates with the United States of America 3 (anici hty i friend with KB 2) The piston forms the KruriycoM along the south of the rrtniHuyio of the KR 2 into one of my poeits D1–7 rdtdelirt and LRU OI coo6tan H i working set 7 piston HPBOIO ugprs igv h 6 Due to the presence of thermocouple and 1P tacho “. P AIRWORKING 11 s / U 2 in a row that is mentioned above, but it is safe, but it is not enough, but it’s not enough, but it’s not enough to do that. 3 ssnbzhrnn signaling that allows for the cost-effectiveness of compsorns and stations due to the reduction of time by n lawsuit nos.tyi 4 e p |) you and i The system of auto-protection of the weed station compressor includes a screw compressor 1 having cams (m 2 suction and 3 compression terminations and the latter is determined by the location of the pair working cavity of a minimum space before its co-operation with discharge window Oil separator 4, which is part of the compressor station, is connected by a line S HI forcing with compressor 1 The system also (L oo -N o o o 00

Description

includes a piston device 6 with a working cavity 7 and a button post B for shutting down the compressor 1 engine, two thermal switches 9 and 10 with a flame insert and pneumatic line 11, connecting the compressor suction chamber 2 with the working cavity of the piston device b through the position valve 12, thermal switches - Tel 9 is installed in the injection line 5 and is connected by pneumatic line 13 to the working cavity 7 of the piston device b, and thermal switch 10 is installed on the code of the oil separator 4 and connected by the same cavity 7 with the same working cavity 7. Two-sided This valve 12 is made in the form of two pistons 15 and 16 mounted on a single rod 17 and placed in the housing 18 with the formation of external fire holes 15 and 16 cavities 19 and 20. The cavity 19 communicates with the cavity 3 okoch 1e 1 h compression pnevmolinii 21 and the cavity 20 with the suction chamber 2 of the pneumatic line 11, with the piston 15 forming the cavity 20 with the housing 18, is installed with the possibility of separation in one po3i, inn valve 12 and so on, , -; - og.sora 1 with p bo “C y PSPOSTYu 7 1C1.L.O v / CTf-i / r1 V;

PNRMOLINI v. I G-10YY PY1O1e 11.

9 and 10, having installed h dg3 positional indicators 22 and 23, similar to a two-position i-lzpan 12, with the only difference that y - 22 or 23 have one nopujGHb, also installed in a switch, with the possibility of dividing it into one positions and messages in another position of the indicator 22 of the discharge line with the working area 01 of the 7 piston unit, and the indicator 23 of the oil separator 4 output - with the same working cavity 7. The on-off valve 12 and the on-off indicators 22 and 23 are equipped with alarm indicators 24, made, for example, in the form of flags attached to the piece ke 17. A compressor station also includes a sump 25 and a cooler 26.

The system of av-g protection of the compressor station works, o6pj.

In the normal operation mode of the compressor station, air from the atmosphere enters the suction chamber 2 and the working cavity of compressor 1, which is injected cooled and compressed in it when the working cavity decreases to the volume of the compression end 3, then the working cavity of the screw compressor 1 sub | h: RTS with nvnoM pumping h gomasl nlg J g

neither enters the oil separator 4. From the oil separator 4, the compressed air enters the pneumatic system to the consumer, and the separated oil enters the oil collector 25 and further

through cooler 26 - to compressor 1. Thermal switches 9 and 10 during normal operation (the temperature of compressed air does not exceed the limit) do not pass compressed air through themselves, since the input

0 channels of thermal switches 9 and 10 are closed with fusible links. In this case, on-off indexes 22 and 23 are in the position corresponding to normal operation, and their annunciators 24 (flags) are located in the body of indexes 22 and 23. The push-button post 8 provides power to the compressor 1 engine. In the pneumatic line 11 connected to the chamber 2 the suction and the cavity 20 of the two-position valve 12 is a pressure below the atmospheric one. Simultaneously, the piston 16 is affected by the pressure of compressed air entering the cavity 19 from the compression end cavity via the pneumatic line 21. As a result, the pistons 15 and 16 are in the 5 leftmost position, the piston 15 blocking the living section for the passage of air to the piston device 6. The indicator 24 (flag) is located in the bore of the valve housing 18, which indicates

0 about normal operation of the compressor station

.In the emergency mode of the compressor station, caused by the reverse rotation of the compressor 1 piites (for example.

5 in case of cable line failure or electrical equipment after repair), air is taken in by screws from the injection line 5 and partially compressed through the gaps in the bearing assemblies; it is compressed in the compressor working cavity and injected into the suction chamber 2. From the suction chamber 2, the compressed air flows through the pneumatic line 11 into the cavity 20 of the dual-position valve 12, the pistons 15 and 16 of which move to

5, the extreme right position (in cavity 19 associated with cavity 3, pressure is below atmospheric, as in this emergency mode air is sucked in cavity 3). Compressed air from cavity 20 enters the working cavity 7 of the piston unit 6, piston which, moving, acts on the button post 8, disabling the compressor 1 engine, fixed on the common rod 17 pistons

5 15 and 16 si i per liter and then p 24 comes out of the bore of housing 18, indicating that the compressor station was turned off as a result of the compressor screws 1 being opposite. To eliminate the emergency condition that occurred,

to reverse the compressor motor.

In the emergency mode of the compressor station, caused by a temperature violation in the discharge line 5, for example, due to failure of bearings, reduction of oil supply to the injection, friction on the housing, etc., the thermal switch insert 9 melts and the compressed air pumping line 5 through thermal shut-off 9 and pneamoliniu 13 enters the two-position indicator

22. That leads to the transfer of the piston of this indicator to a different position and the entry of compressed air into the working cavity 7 of the piston unit by actuating the button post 8 to disable the compressor electric motor. The indicator 24 of the indicator 22 comes out of the bore of the housing of the latter, indicating that the compressor station was turned off as a result of an increase in temperature in the injection line 5, In the emergency mode of the compressor station, caused by a temperature violation with the oil separator 4, for example due to spontaneous combustion of oil-rich deposits in the oil separator 4 or in the air collector, the melting of the insert of the thermal switch 10 is melted and the compressed air enters the two-position indicator

23, which leads to the transfer of this pointer to another position, the flow of compressed air into the working cavity 7 of the piston unit 6 and the disconnection of the compressor electric motor. Signaling device 24 indicators

23in this case indicates that the shutdown of the compressor station occurred as a result of a malfunction in the oil separator 4.

Thus, the presence of thermal switches 9 and 10 and pneumatic lines 11. connected in this way with a button post 8. disconnecting the compressor station, improves the safety of operation of the station, as well as its cost-effectiveness by preventing burnout of oil and filter elements. Installation on pnevmolini two-position: valve 12 and indexes 22 and 23 with signaling devices

24- improves the economics of operating the compressor by reducing the time to troubleshoot.

Claims (5)

1. System of emergency protection of a compressor station, including VINTORPY compressor with suction chamber and compression end, oil separator connected by a pressure line to the compressor. piston device with a working cavity and a push-button post to shut off compressor motor and thermal switch installed in the discharge line of the compressor and connected by pneumatic line with the working cavity of the piston device, characterized in that to increase safety and efficiency, it is equipped with a second thermal switch installed at the outlet of the oil separator and connected to the pneumolinius of the working cavity of the piston device, and pneumo line that communicates the compressor suction chamber to the working post of the piston device through a pneumatically controlled two-position valve. 2. Pop system 1. Distinguishing with the fact that the two-position valve is made in the form of two pistons mounted on a single rod and placed in the housing with the formation of axes relative to the pistons, cavities, one of which is connected to the cavity of the compressor compression end, and the other to the compressor suction chamber, the piston forming the last cavity with the housing the possibility of dividing in one position of the valve and communicating in another chamber the suction of the compressor with the working cavity of the piston unit. 3. Pop 1 system, characterized in that two-position indicators are installed in the pneumatic terminals of the thermal switches, containing a piston installed in the housing with the possibility of dividing the indicator in one position and communication in another compressor discharge line and the output of the oil separator from the working cavity of the piston device. 4. The system according to claim 2, wherein the on-off valve is provided with a position signaling device. 5. The system according to Clause 3, characterized in that the two-position pointers are provided with position signaling devices. 18 20