GB2148395A - Brakes for multistage compressors - Google Patents

Brakes for multistage compressors Download PDF

Info

Publication number
GB2148395A
GB2148395A GB08426743A GB8426743A GB2148395A GB 2148395 A GB2148395 A GB 2148395A GB 08426743 A GB08426743 A GB 08426743A GB 8426743 A GB8426743 A GB 8426743A GB 2148395 A GB2148395 A GB 2148395A
Authority
GB
United Kingdom
Prior art keywords
brake
compressor
compressor unit
unit according
stage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GB08426743A
Other versions
GB2148395B (en
GB8426743D0 (en
Inventor
Walter Koller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmann AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mannesmann AG filed Critical Mannesmann AG
Publication of GB8426743D0 publication Critical patent/GB8426743D0/en
Publication of GB2148395A publication Critical patent/GB2148395A/en
Application granted granted Critical
Publication of GB2148395B publication Critical patent/GB2148395B/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/16—Other safety measures for, or other control of, pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
    • B60T1/02—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels
    • B60T1/06—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission or on double wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/16—Combinations of two or more pumps ; Producing two or more separate gas flows
    • F04D25/163—Combinations of two or more pumps ; Producing two or more separate gas flows driven by a common gearing arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/02—Surge control
    • F04D27/0292—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/90—Braking

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The compressor, particularly for use in the production and storage of gaseous products such as oxygen, comprises a brake (5), acting on the shaft (2) of a drive motor for the compressor. The brake is preferably a disc brake in which the disc (6) is bolted to a coupling (9) and has shoes (7). <IMAGE>

Description

SPECIFICATION Multi-stage compressor unit The innovation relates to a compressor unit having a multiple-stage turbo compressor and a drive motor therefor. Large multiple-stage compressors of this type are used for example, in chemical processes, in particular for the production and storage of gaseous products such as oxygen.
So called gear turbo compressor units have proved to be successful in chemical processes.
Such a unit has a common gear comprising a large diameter central gear wheel and bevel gears associated with the individual compressor runners and which mesh with the central gear wheel. The shaft of the central gear wheel is connected with the drive motor through a coupling. Large compressors, and in particular gear compressors of this type, have a large inertial moment owing to the large revolving components. Therefore, they have a relatively long slow down time after the electric motor is switched off, which can amount to as much as 10 minutes depending on the size of the unit. Particularly in the event of damage to an oxygen compressor unit, there is a substantial fire risk. In the case of fire it is of course imperative to prevent the furnace from spreading as much as possible.
The present invention seeks to design a multiple-stage turbo compressor unit in which, in the case of an emergency shut-down of the installation, the machine comes to a standstill as quickly as possible. To this end, a compressor unit according to the invention comprises a multiple-stage turbo-compressor and a drive motor connected through a coupling, and a brake arranged for operation on at least on one of the revolving parts of the unit. The type of brake used is normally mechanical, preferably a disc brake is used.
When applied to a compressor unit with a common gear as described above, a unit according to the invention may have the brake arranged for operation on the runner of one or more of the compressor stages. Operation on only the lowest pressure stage can be sufficient. Alternatively, the brake can be applied to the shaft of the central gear wheel.
According to the invention, on braking with the extent of the motor nominal moment, the machine and the driving motor can be brought to a standstill in a few seconds. In such fast braking, no components are stressed more highly than in the acceleration of the electric motor.
Embodiments of the invention will now be described by way of example and with reference to the accompanying drawings wherein: Figure 1 shows in axial section a part of a compressor unit according to the invention with a disc brake arranged on the main shaft; and Figure 2-5 show arrangements of the brake on various revolving parts of the compressor.
As shown in Fig. 1 a disc brake 6 is fastened by means of tight-fit screws 8 to the main shaft 2 or to a coupling part 9 firmly connected with this shaft. The brake shoes are designated by 7. The shoes 7 and the disc 6 together form the brake 5.
Fig. 2 shows the brake 5 operation on the coupling which is connected with the main shaft 2, in which 1 designates the integrated gear and compressor housing, and 3 represents the electric motor. Fig. 3 shows the brake 5 arranged on the free compressor shaft end 4, and Fig. 4 shows brake 5 arranged to the free motor shaft end 6. In Fig. 5, in a multiple-stage compressor with two gear housings 1,1', the brake 5 is arranged between the two gear housings.
1. A compressor unit comprising a multiple-stage turbo-compressor and a drive motor connected through a coupling, and a brake arranged for operation on at least on one of the revolving parts of the unit.
2. A compressor unit according to Claim 1 wherein the brake is a mechanical brake.
3. A compressor unit according to Claim 2 wherein the brake is a disc brake.
4. A compressor unit according to any preceding Claim wherein the compressor has a central gear wheel connected with a main shaft and bevel gears meshing with the gear wheel which are coupled to the runners of the respective compressor stages.
5. A compressor unit according to Claim 4 wherein the brake is arranged for operation on the runner of one of the compressor stages.
6. A compressor unit according to Claim 5 wherein said on stage is the lowest pressure stage.
7. A compressor unit according to Claim 4 wherein the brake is arranged for operation on the shaft of the central gear wheel.
8. A compressor unit according to any of Claims 1 to 4 wherein the brake is arranged on the coupling between the drive motor and the compressor.
9. A compressor unit according to any of Claims 1 to 4 wherein the brake is arranged on the free motor shaft end.
10. A compressor unit according to any of Claims 1 to 4 wherein the brake is arranged on the free shaft end of the compressor runner.
11. A compressor unit substantially as described with reference to the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (11)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Multi-stage compressor unit The innovation relates to a compressor unit having a multiple-stage turbo compressor and a drive motor therefor. Large multiple-stage compressors of this type are used for example, in chemical processes, in particular for the production and storage of gaseous products such as oxygen. So called gear turbo compressor units have proved to be successful in chemical processes. Such a unit has a common gear comprising a large diameter central gear wheel and bevel gears associated with the individual compressor runners and which mesh with the central gear wheel. The shaft of the central gear wheel is connected with the drive motor through a coupling. Large compressors, and in particular gear compressors of this type, have a large inertial moment owing to the large revolving components. Therefore, they have a relatively long slow down time after the electric motor is switched off, which can amount to as much as 10 minutes depending on the size of the unit. Particularly in the event of damage to an oxygen compressor unit, there is a substantial fire risk. In the case of fire it is of course imperative to prevent the furnace from spreading as much as possible. The present invention seeks to design a multiple-stage turbo compressor unit in which, in the case of an emergency shut-down of the installation, the machine comes to a standstill as quickly as possible. To this end, a compressor unit according to the invention comprises a multiple-stage turbo-compressor and a drive motor connected through a coupling, and a brake arranged for operation on at least on one of the revolving parts of the unit. The type of brake used is normally mechanical, preferably a disc brake is used. When applied to a compressor unit with a common gear as described above, a unit according to the invention may have the brake arranged for operation on the runner of one or more of the compressor stages. Operation on only the lowest pressure stage can be sufficient. Alternatively, the brake can be applied to the shaft of the central gear wheel. According to the invention, on braking with the extent of the motor nominal moment, the machine and the driving motor can be brought to a standstill in a few seconds. In such fast braking, no components are stressed more highly than in the acceleration of the electric motor. Embodiments of the invention will now be described by way of example and with reference to the accompanying drawings wherein: Figure 1 shows in axial section a part of a compressor unit according to the invention with a disc brake arranged on the main shaft; and Figure 2-5 show arrangements of the brake on various revolving parts of the compressor. As shown in Fig. 1 a disc brake 6 is fastened by means of tight-fit screws 8 to the main shaft 2 or to a coupling part 9 firmly connected with this shaft. The brake shoes are designated by 7. The shoes 7 and the disc 6 together form the brake 5. Fig. 2 shows the brake 5 operation on the coupling which is connected with the main shaft 2, in which 1 designates the integrated gear and compressor housing, and 3 represents the electric motor. Fig. 3 shows the brake 5 arranged on the free compressor shaft end 4, and Fig. 4 shows brake 5 arranged to the free motor shaft end 6. In Fig. 5, in a multiple-stage compressor with two gear housings 1,1', the brake 5 is arranged between the two gear housings. CLAIMS
1. A compressor unit comprising a multiple-stage turbo-compressor and a drive motor connected through a coupling, and a brake arranged for operation on at least on one of the revolving parts of the unit.
2. A compressor unit according to Claim 1 wherein the brake is a mechanical brake.
3. A compressor unit according to Claim 2 wherein the brake is a disc brake.
4. A compressor unit according to any preceding Claim wherein the compressor has a central gear wheel connected with a main shaft and bevel gears meshing with the gear wheel which are coupled to the runners of the respective compressor stages.
5. A compressor unit according to Claim 4 wherein the brake is arranged for operation on the runner of one of the compressor stages.
6. A compressor unit according to Claim 5 wherein said on stage is the lowest pressure stage.
7. A compressor unit according to Claim 4 wherein the brake is arranged for operation on the shaft of the central gear wheel.
8. A compressor unit according to any of Claims 1 to 4 wherein the brake is arranged on the coupling between the drive motor and the compressor.
9. A compressor unit according to any of Claims 1 to 4 wherein the brake is arranged on the free motor shaft end.
10. A compressor unit according to any of Claims 1 to 4 wherein the brake is arranged on the free shaft end of the compressor runner.
11. A compressor unit substantially as described with reference to the accompanying drawings.
GB08426743A 1983-10-24 1984-10-23 Brakes for multistage compressors Expired GB2148395B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19838330767U DE8330767U1 (en) 1983-10-24 1983-10-24 MULTI-STAGE TURBO COMPRESSOR

Publications (3)

Publication Number Publication Date
GB8426743D0 GB8426743D0 (en) 1984-11-28
GB2148395A true GB2148395A (en) 1985-05-30
GB2148395B GB2148395B (en) 1987-06-24

Family

ID=6758283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08426743A Expired GB2148395B (en) 1983-10-24 1984-10-23 Brakes for multistage compressors

Country Status (2)

Country Link
DE (1) DE8330767U1 (en)
GB (1) GB2148395B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358698A (en) * 2014-10-22 2015-02-18 山西省安瑞风机电气有限公司 Brake device for remotely controlling axial flow fan

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB650661A (en) * 1939-12-04 1951-02-28 Rateau Soc Jet reaction propulsion unit for aircraft
GB732724A (en) * 1956-05-03 1955-06-29 Dunlop Rubber Co Disc brake assembly
GB858361A (en) * 1956-09-13 1961-01-11 Rotol Ltd Improvements in or relating to disc or drum brake units
GB1212962A (en) * 1969-01-15 1970-11-18 Lokomotivbau Elektrotech Brake arrangements on electrically driven vehicles
GB2011006A (en) * 1977-12-27 1979-07-04 Gen Motors Corp Clutch and brake unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB650661A (en) * 1939-12-04 1951-02-28 Rateau Soc Jet reaction propulsion unit for aircraft
GB732724A (en) * 1956-05-03 1955-06-29 Dunlop Rubber Co Disc brake assembly
GB858361A (en) * 1956-09-13 1961-01-11 Rotol Ltd Improvements in or relating to disc or drum brake units
GB1212962A (en) * 1969-01-15 1970-11-18 Lokomotivbau Elektrotech Brake arrangements on electrically driven vehicles
GB2011006A (en) * 1977-12-27 1979-07-04 Gen Motors Corp Clutch and brake unit

Also Published As

Publication number Publication date
GB2148395B (en) 1987-06-24
GB8426743D0 (en) 1984-11-28
DE8330767U1 (en) 1984-02-23

Similar Documents

Publication Publication Date Title
US3809493A (en) Interchangeable compressor drive
US3578872A (en) Speed and torque control for surgical turbine
CN101265917B (en) Gear drive turbine compressor
DE59706649D1 (en) Electric single wheel drive for a work vehicle
US6340288B1 (en) High-pressure fan
JP2966575B2 (en) Oil-free scroll compressor
CA2036363A1 (en) Disk brake for elevator
JPH08239195A (en) Drive for hoist
GB2148395A (en) Brakes for multistage compressors
JPS6048639B2 (en) multistage centrifugal compressor
US4086019A (en) Transmission means for centrifugal compressors
SK93794A3 (en) Driving mechanism of compressor for oxygen pressing
US6966545B2 (en) Chain block
JP2006063895A (en) Centrifugal compressor
US20160123332A1 (en) Rotary machine
US4240535A (en) Clutch and brake assembly
US3611748A (en) Quick connect flexible drive
DE2409857A1 (en) TURBOMOLECULAR VACUUM PUMP WITH AT LEAST PARTIAL BELL-SHAPED ROTOR
JPH10246198A (en) Compressor and gas expander device
US3461687A (en) Quick connect flexible drive
JPH0754637Y2 (en) Multi-stage turbo compressor
CN112513422A (en) Double-shaft or multi-shaft vacuum pump
BE1029627B1 (en) COMPRESSOR ASSEMBLY
CN1092134C (en) Hoist drive
JPH0811997B2 (en) Rotating fluid machinery

Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee