CN216950909U - Chloromethane and chloroethylene high-speed centrifugal turbine compressor - Google Patents
Chloromethane and chloroethylene high-speed centrifugal turbine compressor Download PDFInfo
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- CN216950909U CN216950909U CN202123173378.6U CN202123173378U CN216950909U CN 216950909 U CN216950909 U CN 216950909U CN 202123173378 U CN202123173378 U CN 202123173378U CN 216950909 U CN216950909 U CN 216950909U
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Abstract
The utility model relates to a chloromethane and chloroethylene high-speed centrifugal turbine compressor. The primary compression main engine, the secondary compression main engine, the motor and the speed increasing box are all arranged at the top of the base oil tank; a pair of gears with a big gear and a small gear are assembled in the speed increasing box, the big gear is assembled on the low-speed shaft, and the small gear is assembled on the high-speed shaft; one end of the high-speed shaft is provided with a first-stage compression main machine, and the other end of the high-speed shaft is provided with a second-stage compression main machine. The utility model has no friction between the running wheel and the casing, and does not need lubrication. The compression process is absolutely free of oil, so that the product quality is improved; the centrifugal compressor has the advantages of large gas transmission amount, simple and compact structure, light weight, small unit size and small occupied area; the friction parts are few, the spare parts are less in required amount, and the maintenance cost and the labor cost are low; long service life, long service life and stable efficiency. And dry gas labyrinth sealing is adopted to realize zero leakage of the medium. The main engine has stable operation, small vibration, low noise, continuous and stable exhaust, no pulse generation and high automation degree.
Description
Technical Field
The utility model belongs to the technical field of chemical raw materials and chemical product manufacturing, and particularly relates to a chloromethane and chloroethylene high-speed centrifugal turbine compressor.
Background
Methyl chloride and Vinyl Chloride (VCM) are flammable and explosive, and currently in the industry: the chloromethane mainly uses a reciprocating piston compressor, and a screw compressor is selected by individual manufacturers for reducing the overhaul cost and improving the operation stability; vinyl Chloride (VCM) mainly uses a screw compressor. Reciprocating piston compressors have the following disadvantages: 1) and the piston needs to be lubricated by oil, and the oil in the gas needs to be removed, but the product is difficult to absolutely contain no oil, so that the product quality and the application field of the product are reduced. Such as when used as methylating agents for silicones and cellulose, cannot contain oil. 2) The structure is complex and heavy, the number of moving parts is large, the number of easily damaged parts is large, the overhaul workload is large, and the maintenance cost is high. 3) The efficiency is reduced quickly by the abrasion of piston rings, the abrasion of cylinders and the transmission mode of a belt. Thereby reducing the productivity and increasing the power consumption. 4) And the sealing is realized by adopting the filler, so that no leakage can be realized, and the environment and the safety are influenced. 5) The noise is high, and the machine vibrates in operation; 6) the exhaust is discontinuous, the air flow has pulsation, the pipeline vibration is easy to cause, and the damage of a pipe network or a machine part is often caused by the pulsation and resonance of the air flow in serious cases; 7) the automation level is low, the control system is backward, and the device is not suitable for the needs of chain control and unattended operation and the needs of modern industrial automation development.
If the screw compressor is adopted, the prior oil-free screw compressor has the problems of short service life, high maintenance cost and low efficiency, and absolute oil-free performance is difficult to realize; oil-injected screw compressors have the disadvantages that oil mist separation is not thorough, and the products cannot be guaranteed to be completely free of oil.
Disclosure of Invention
The utility model aims to provide a chloromethane and chloroethylene high-speed centrifugal turbine compressor.
The utility model comprises a primary compression main machine, a secondary compression main machine, a motor, a speed increasing box and a base oil tank; the primary compression main engine, the secondary compression main engine, the motor and the speed increasing box are all arranged at the top of the base oil tank; a pair of gears with a big gear and a small gear are assembled in the speed increasing box, the big gear is assembled on the low-speed shaft, and the small gear is assembled on the high-speed shaft; one end of the high-speed shaft is provided with a primary compression main machine, and the other end of the high-speed shaft is provided with a secondary compression main machine;
the first-stage compressor comprises a first-stage air inlet pipe, a low-pressure cylinder and a first-stage impeller, the first-stage impeller is arranged in the low-pressure cylinder, and the first-stage impeller is not in contact with the low-pressure cylinder when rotating; the air inlet of the low pressure cylinder is provided with a primary air inlet pipe, and the air outlet of the low pressure cylinder is provided with a primary air outlet pipe; a labyrinth seal ring and a tilting pad bearing are arranged between the low pressure cylinder and the high speed shaft.
The secondary compressor comprises a secondary air inlet pipe, a high-pressure cylinder and a secondary impeller, the secondary impeller is arranged in the high-pressure cylinder, and the secondary impeller is not in contact with the high-pressure cylinder when rotating; the air inlet of the high-pressure cylinder is provided with a second-stage air inlet pipe, and the air outlet of the high-pressure cylinder is provided with a second-stage air outlet pipe; a labyrinth seal ring and a tilting pad bearing are arranged between the high-speed cylinder and the high-speed shaft.
An oil outlet of the base oil tank is provided with a pressure oil pipe which is used for supplying oil for lubricating and cooling oil-using parts; the pressure oil pipe is provided with an oil cooler, a main oil pump and an oil filter.
Preferably, the output shaft of the motor is connected with the low-speed shaft through a coupling.
Preferably, a housing is provided outside the coupling.
Preferably, the base oil tank supplies oil to the tilting pad bearings and the big and small gears at two ends of the high-speed shaft through a pressure oil pipe for lubrication and cooling.
Preferably, an oil drain valve is arranged at the bottom of the base oil tank.
Preferably, the main oil pump is a shaft head pump and is driven by a main motor, an oil head tank is not needed, and a bearing can be protected when power is suddenly cut off.
Preferably, the pressure oil pipe is further provided with an auxiliary oil pump for providing enough lubricating oil when the engine is started.
Furthermore, a temperature sensor, a pressure transmitter, shaft vibration detection and motor current detection are arranged, a regulating control valve is arranged, and configuration is carried out through a PLC or DCS control system, so that remote operation and interlocking are realized.
The utility model has no friction between the working wheel (the first-stage impeller and the second-stage impeller) and the casing (the low pressure cylinder and the high pressure cylinder) and does not need lubrication. In the chemical process, the centrifugal compressor can realize an absolute oil-free compression process on chemical media, so that the product quality is improved, and the requirements of more users are met; the centrifugal compressor has the advantages of large gas transmission amount, simple and compact structure, light weight, small unit size and small occupied area; because it has no wearing parts such as steam valve piston ring, etc. and has no crank connecting rod mechanism, it has balanced running, reliable operation, high running rate and less friction parts, and because the spare parts are less in demand, the maintenance cost and the labor cost are low; compared with a reciprocating compressor, the centrifugal compressor has long service life and stable efficiency, and the efficiency of the centrifugal compressor is not obviously reduced along with the increase of the service time like the reciprocating compressor. And by adopting dry gas labyrinth sealing, zero leakage of media can be realized, and the safety of the environment and a working place is protected. The host computer operates steadily, shakes for a short time, and the noise is low. The exhaust is continuous and stable, and no pulse occurs. The device can be used for remote operation control, interlocking and the like, and unattended operation is realized.
Drawings
FIG. 1 is a schematic top view of the overall structure of the present invention;
FIG. 2 is a schematic front view of the overall structure of the present invention;
FIG. 3 is a schematic side view of the overall structure of the present invention;
FIG. 4 is a schematic diagram of a compression engine according to the present invention;
FIG. 5 is a flow chart of the present invention.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
As shown in figures 1-2, the high-speed centrifugal turbine compressor for chloromethane and chloroethylene comprises a primary compression main machine, a secondary compression main machine, a motor 1, a speed increasing box 4 and a base oil tank 7. The primary compression main engine, the secondary compression main engine, the motor 1 and the speed increasing box 4 are all arranged at the top of the base oil tank 7.
The output shaft of the motor is connected with the low-speed shaft through a coupler 2, a pair of gears with a big gear and a small gear are assembled in the speed increasing box 4, the big gear is assembled on the low-speed shaft, and the small gear is assembled on the high-speed shaft; a large gear is matched on the low-speed shaft, the large gear drives a small gear on the high speed shaft, one end of the high-speed shaft is provided with a first-stage compression main machine, and the other end of the high-speed shaft is provided with a second-stage compression main machine.
The outer part of the coupling 2 is provided with a housing 3 which plays a role in protecting the shaft in the high-speed rotation process.
As shown in FIG. 3, an oil outlet of the base oil tank 7 supplies oil for lubricating and cooling tilting pad bearings 19 and large and small gears at two ends of the high-speed shaft respectively through a pressure oil pipe 13. The base oil tank 7 is arranged in the base, lubricating oil is arranged in the base, and the pressure oil pipe is used for providing lubricating oil for the bearing, so that the lubricating and cooling effects are achieved.
An oil cooler 9 and a main oil pump 12 are arranged on a pressure oil pipe of an oil outlet of the base oil tank 7 and used for cooling the oil after being pumped out; an oil filter 10 is arranged on a pressure oil pipe of an oil outlet of the oil cooler 9 and used for filtering impurities in oil;
an oil drain valve 11 is arranged at the bottom of the oil tank 7 and used for draining oil; an auxiliary oil pump 8 is further arranged on a pressure oil pipe 13 of the base oil tank 7, and the auxiliary oil pump 8 is used when the engine is started or the main oil pump fails, and is automatically started when the oil pressure is low, so that the unit is protected from being damaged.
As shown in fig. 4, the primary and secondary compression main units are mounted on both ends of the high-speed shaft.
The first-stage compressor comprises a first-stage air inlet pipe 16, a low-pressure cylinder 5 and a first-stage impeller 18, the first-stage impeller 18 is arranged in the low-pressure cylinder 5, and the first-stage impeller 18 is not in contact with the low-pressure cylinder 5 when rotating; a primary air inlet pipe 16 is arranged at the air inlet of the low pressure cylinder 5, and a primary air outlet pipe is arranged at the air outlet of the low pressure cylinder 5; a labyrinth seal ring 21 and a tilting pad bearing 19 are arranged between the low-pressure cylinder 5 and the high-speed shaft 20, and the labyrinth seal ring 21 is filled with dry sealing gas to ensure zero leakage of the compressed gas.
The secondary compressor comprises a secondary air inlet pipe 14, a high-pressure cylinder 6 and a secondary impeller 22, the secondary impeller 22 is arranged in the high-pressure cylinder 6, and the secondary impeller 22 is not in contact with the high-pressure cylinder 6 when rotating; a secondary air inlet pipe 14 is arranged at an air inlet of the high-pressure cylinder 6, and a secondary air outlet pipe is arranged at an air outlet of the high-pressure cylinder 6; a labyrinth seal ring 21 and a tilting pad bearing 19 are arranged between the high-speed cylinder 6 and the high-speed shaft 20, and the labyrinth seal ring 21 is used for drying seal gas to ensure zero leakage of the compressed gas.
All parts of the whole main machine are assembled on the base oil tank 7 to form an integral skid-mounted structure.
The working process or principle is as follows:
as shown in fig. 5, the compressed gas (methyl chloride and Vinyl Chloride (VCM)) enters a primary gas inlet a (primary gas inlet pipe gas inlet) and enters a primary compression host, is discharged through a primary gas outlet b after primary compression, enters an external cooler (both conventional coolers can be used), enters a secondary compression host through a secondary gas inlet c after cooling, and is discharged through a secondary gas outlet d after secondary compression; cooling with an external cooler (conventional cooler can be used), and then using in the next process or condensing into product.
Centrifugal compression does not need oil injection lubrication, the shaft seal is sealed by dry gas, and bearing lubricating oil cannot enter the compressor, so that absolute oil-free performance is realized.
The device is configured by configuring a temperature sensor, a pressure transmitter, shaft vibration detection, motor current detection, an adjusting control valve and the like, and a PLC (programmable logic controller) or DCS (distributed control system) control system, so that remote operation, interlocking and the like can be realized, and unattended operation on site is realized.
Claims (8)
1. A chloromethane and chloroethylene high-speed centrifugal turbine compressor comprises a primary compression main machine, a secondary compression main machine, a motor, a speed increasing box and a base oil tank; the method is characterized in that: the primary compression main engine, the secondary compression main engine, the motor and the speed increasing box are all arranged at the top of the base oil tank; a pair of gears with a big gear and a small gear are assembled in the speed increasing box, the big gear is assembled on the low-speed shaft, the small gear is assembled on the high-speed shaft, and the small gear and the high-speed shaft are integrally formed; one end of the high-speed shaft is provided with a primary compression main machine, and the other end of the high-speed shaft is provided with a secondary compression main machine;
the first-stage compressor comprises a first-stage air inlet pipe, a low-pressure cylinder and a first-stage impeller, the first-stage impeller is arranged in the low-pressure cylinder, and the first-stage impeller is not in contact with the low-pressure cylinder when rotating; the air inlet of the low pressure cylinder is provided with a primary air inlet pipe, and the air outlet of the low pressure cylinder is provided with a primary air outlet pipe; a labyrinth seal ring and a tilting pad bearing are arranged between the low pressure cylinder and the high speed shaft;
the secondary compressor comprises a secondary air inlet pipe, a high-pressure cylinder and a secondary impeller, the secondary impeller is arranged in the high-pressure cylinder, and the secondary impeller is not in contact with the high-pressure cylinder when rotating; the air inlet of the high-pressure cylinder is provided with a second-stage air inlet pipe, and the air outlet of the high-pressure cylinder is provided with a second-stage air outlet pipe; a labyrinth seal ring and a tilting pad bearing are arranged between the high-pressure cylinder and the high-speed shaft;
an oil outlet of the base oil tank is provided with a pressure oil pipe which is used for supplying oil for lubricating and cooling oil-using parts; the pressure oil pipe is provided with an oil cooler, a main oil pump and an oil filter.
2. The methyl chloride and vinyl chloride high speed centrifugal turbine compressor of claim 1, wherein: the low-speed shaft is connected with the output shaft of the motor through a coupler.
3. The methyl chloride and vinyl chloride high speed centrifugal turbine compressor of claim 2, wherein: and a housing is arranged outside the coupler.
4. The methyl chloride and vinyl chloride high speed centrifugal turbine compressor of claim 1, wherein: the base oil tank supplies oil to the tilting pad bearings and the large and small gears at two ends of the high-speed shaft through the pressure oil pipe for lubrication and cooling.
5. The methyl chloride and vinyl chloride high speed centrifugal turbine compressor of claim 1, wherein: and an oil drain valve is arranged at the bottom of the base oil tank.
6. The methyl chloride and vinyl chloride high speed centrifugal turbine compressor of claim 1, wherein: the main oil pump is a shaft head pump.
7. The methyl chloride and vinyl chloride high speed centrifugal turbine compressor of claim 1, wherein: the pressure oil pipe is also provided with an auxiliary oil pump.
8. The methyl chloride and vinyl chloride high speed centrifugal turbine compressor of claim 1, wherein: the remote operation and interlocking are realized by configuring a temperature sensor, a pressure transmitter, shaft vibration detection, motor current detection, a regulating control valve and a PLC or DCS control system for configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123173378.6U CN216950909U (en) | 2021-12-16 | 2021-12-16 | Chloromethane and chloroethylene high-speed centrifugal turbine compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123173378.6U CN216950909U (en) | 2021-12-16 | 2021-12-16 | Chloromethane and chloroethylene high-speed centrifugal turbine compressor |
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| CN216950909U true CN216950909U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123173378.6U Active CN216950909U (en) | 2021-12-16 | 2021-12-16 | Chloromethane and chloroethylene high-speed centrifugal turbine compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591972A (en) * | 2023-07-18 | 2023-08-15 | 江苏章鼓力魄锐动力科技有限公司 | Two-stage centrifugal compressor for tail gas treatment |
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2021
- 2021-12-16 CN CN202123173378.6U patent/CN216950909U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116591972A (en) * | 2023-07-18 | 2023-08-15 | 江苏章鼓力魄锐动力科技有限公司 | Two-stage centrifugal compressor for tail gas treatment |
| CN116591972B (en) * | 2023-07-18 | 2023-09-26 | 江苏章鼓力魄锐动力科技有限公司 | Two-stage centrifugal compressor for tail gas treatment |
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