CN203962403U - Nitrogen recycling supercharging helical-lobe compressor - Google Patents
Nitrogen recycling supercharging helical-lobe compressor Download PDFInfo
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- CN203962403U CN203962403U CN201420418324.2U CN201420418324U CN203962403U CN 203962403 U CN203962403 U CN 203962403U CN 201420418324 U CN201420418324 U CN 201420418324U CN 203962403 U CN203962403 U CN 203962403U
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Abstract
The utility model relates to a kind of nitrogen recycling supercharging helical-lobe compressor, and it is comprised of compression system, transmission system, filtering separation system, cooling and lubricating system and electric control system, and concentrates design to make skid case structure.Wherein: Self-operated pressure pressure regulator valve is installed before gas holder, on the pipeline after gas holder, is connected air intake filter, Pneumatic butterfly valve, bypass valve and atmospheric valve; Compressor head connects temperature transducer, pressure transducer, safety check and gas-oil separating cylinder, gas-oil separating cylinder connects thermostat valve, oil strainer, oil cut-off valve by lubricant pipe, another road of thermostat valve connects oil cooler, aftercooler, hydraulic valve, accurate filter assembly successively, and pressurized air is finally exported by the road by accurate filter assembly.The utility model is stable and high effective operation under nitrogen recycling supercharging variable working condition, and exhaust pressure reaches 2.5-3.5MPa, has realized in compressor and has pressed more balance, and energy consumption is more economized, and gas is cleaner, moves more stablely, and the lifelong operation cost of equipment is lower.
Description
Technical field
The utility model relates to nitrogen compressor structural design, particularly a kind of nitrogen recycling supercharging fuel injection helical lobe compressor structure.
Background technique
At present, most of nitrogen adopts after air separation plant separation, adopts compressor to carry out direct weighting application, carries out pressurized applications again after also having part to adopt liquid nitrogen gasification through compressor.In actual applications, the consumption ratio of nitrogen is less, most of gas as toxic emission in atmosphere.If the nitrogen recycling emitting can be carried out to secondary utilization, can greatly improve the utilization ratio of nitrogen.
Helical-lobe compressor, as a kind of main pressurized equipment and source of the gas supply machinery, is widely used in weaving, food, rubber industry, and as recycling nitrogen pressurized equipment, so screw type nitrogen compressor has wide market prospects.Screw type nitrogen compressor is different from screw air compressor, is mainly the purity that guarantees compressed media, so the sealing of carrying out medium channel is an important ring.
At present domestic only have several production firms manufacturing screw type nitrogen compressor, and exhaust pressure is generally all confined to conventional pressure.Exhaust pressure reaches the screw compressor of 2.5-3.5MPa, still in blank, so, develop a mesohigh nitrogen helical-lobe compressor that is applicable to weaving, food, rubber industry and become the task of top priority, be also that the art is long-awaited.
Summary of the invention
Task of the present utility model is to provide a kind of project organization and solution of nitrogen recycling supercharging helical-lobe compressor, special operation condition based on above-mentioned, unit is stable and high effective operation under nitrogen recycling supercharging variable working condition, and the exhaust pressure that has solved the current screw compressor in related domain is the still technical problem in space state of 2.5-3.5MPa.
Technical solution of the present utility model is as follows:
A nitrogen recycling supercharging helical-lobe compressor, it is comprised of this five major part of compression system, transmission system, filtering separation system, cooling and lubricating system and electric control system, and concentrates design to make skid case structure;
Described compression system comprises suction valve, compressor host, gas-oil separating cylinder and connecting pipeline thereof;
Described transmission system comprises drive motor and coupling assembly;
Air intake filter, oil filter and deaerator are housed in described filtration system;
Cooler and screw compression machine oil are set in described cooling and lubricating system;
Described electric control system comprises safety valve and automatic electrical control system;
Wherein: Self-operated pressure pressure regulator valve is installed before gas holder, on the pipeline after gas holder, is connected air intake filter, Pneumatic butterfly valve, bypass valve, the first atmospheric valve and the second atmospheric valve;
Compressor head connects temperature transducer, pressure transducer, safety check and gas-oil separating cylinder, gas-oil separating cylinder is equipped with safety valve, blowdown valve, minimum pressure valve and pressure transducer, gas-oil separating cylinder connects thermostat valve, oil strainer, oil cut-off valve and pressure transducer by lubricant pipe, another road of thermostat valve connects oil cooler, aftercooler, hydraulic valve, accurate filter assembly V level and accurate filter assembly A level successively, and pressurized air is finally exported by the road by accurate filter assembly.
Air inlet stop valve is housed on the connecting pipeline between described gas holder and air intake filter.
The first solenoid valve is housed on the control wiring that described Pneumatic butterfly valve is connected with oil cut-off valve.
On the lubricant pipe being connected between described compressor head and gas-oil separating cylinder, one-way valve is housed.
Described oil strainer connects a differential pressure switch for oil filter.
Described the second atmospheric valve joint noise reduction device.
Described gas-oil separating cylinder also connects shuttle valve and reduction valve.
Described air intake filter connects temperature transducer and pressure transducer.
Described electric control system is combined by PLC controller and electric elements.
The mechanical vibration that flexible coupling causes to reduce head are installed in the middle of described compressor head and outlet pipe.
Nitrogen recycling supercharging helical-lobe compressor of the present utility model has met the following technical characterstic of mesohigh nitrogen helical-lobe compressor:
A, compressed media are for reclaiming nitrogen, and suction pressure is with the variation fluctuation of reclaiming nitrogen flow, and manometer pressure reaches 0.1-0.3MPa, is variable working condition.
B, because relating to industry difference, all kinds of differences of product, also different to compressor load ability need, general exhaust pressure 2.5-3.5MPa, selects two stage compression, the match selection of middle pressure screw compression machine head, two stage compressor pressure ratio is distributed.
C, gas purity, guarantee must not change and surpass 0.2% through the gas purity of overcompression.
D, improve the recovery utilization rate of nitrogen, in the emptying of complete machine, maintenance, accomplish zero-emission.
E, the continuously operation that can meet long-term 24 hours, and unmanned.
Nitrogen recycling supercharging helical-lobe compressor of the present utility model has solved following all problem, and has corresponding feature and advantage:
1, purpose of design, has realized in compressor and has pressed more balance, and energy consumption is more economized, and gas is cleaner, moves more stablely, and the lifelong operation cost of equipment is lower.
2, the design of core mesohigh head, manufacture, test, mainly adopt one-level compression or two stage compression, and exhaust pressure reaches 2.5-3.5MPa, has improved vent systems, injection system.
3, effectively regulate in compressor and press, by overcoming the power consumption of pressing in system, accomplish minimumly, maintain head injection system simultaneously and normally work, prevent head high temperature fault.
4, solve the difficult problem that oil content system is taken out of because of the high solidifying oil of gas flow rate, improve gas degree of purity, exhaust oil content is lower than 2ppm, and oil content pressure drop drops to minimum.
5, solve the oil spout of injection system oil circuit and distribute a difficult problem, head arranges the low protection of injection pressure, solves each road oil spout partition equilibrium, guarantees that oil-way system is normal.
6, solve complete machine layout, the reasonable in design of machine, boundary dimension meets national pertinent regulations, facilitates transportation, the client of equipment to install and maintenance.
7, solve complete machine and automatically control a difficult problem, guarantee that each parameter is normal.
8, solve pressure piping sealing problem, guarantee gas purity.
Nitrogen effective recycling problem while 9, solving air inlet, emptying, maintenance.
Accompanying drawing explanation
Fig. 1 is project organization and the workflow schematic diagram of a kind of nitrogen recycling supercharging helical-lobe compressor of the present utility model.
Fig. 2 is the stereoscopic figure of a kind of nitrogen recycling supercharging helical-lobe compressor of the present utility model.
Reference character:
1 is Self-operated pressure pressure regulator valve, 2 is gas holder, 3 is air intake filter, 4 is the first temperature transducer, 5 is the first pressure transducer (0-1.6MPa), 6 is the second pressure transducer (0-1.6MPa), 7 is Pneumatic butterfly valve, 8 is bypass valve (one-way valve), 9 is the first atmospheric valve (pneumatic ball valve), 10 is the first solenoid valve, 11 is one-way valve, 12 is compressor head, 13 is the second temperature transducer, 14 is the 3rd pressure transducer (0-1.6MPa), 15 is three-temperature sensor, 16 is the 4th pressure transducer (0-4.0MPa), 17 is safety check, 18 is oil cut-off valve (pneumatic ball valve), 19 is the 5th pressure transducer (0-4.0MPa), 20 is differential pressure switch (oil filter), 21 is the 6th pressure transducer (0-4.0MPa), 22 is the 7th pressure transducer (0-1.6MPa), 23 is gas-oil separating cylinder, 24 is blowdown valve, 25 is oil strainer, 26 is thermostat valve, 27 is safety valve, 28 is minimum pressure valve, 29 is the 4th temperature transducer, 30 is oil cooler, 31 is aftercooler, 32 is hydraulic valve, 33 is the 8th pressure transducer (0-4.0MPa), 34 is accurate filter assembly V level, 35 is accurate filter assembly A level, 36 is the second solenoid valve, 37 is the second atmospheric valve (pneumatic ball valve), 38 is baffler, 39 is shuttle valve (0-1.6MPa), 40 is reduction valve (0-4.0MPa), 41 is air inlet stop valve.
Embodiment
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of nitrogen recycling supercharging helical-lobe compressor, it is mainly comprised of this five major part of compression system, transmission system, filtering separation system, cooling and lubricating system and electric control system, for the utilization of nitrogen secondary recovery provides pressurization system.This five most of concentrates design to make skid case structure (as shown in Figure 2), form integrated, all configuration-system integral layouts, beautiful and clean.
Compression system comprises suction valve, compressor host, gas-oil separating cylinder and connecting pipeline thereof.Transmission system comprises drive motor and coupling assembly.Air intake filter, oil filter and deaerator are housed in filtration system.Cooler and helical-lobe compressor special oil are set in cooling and lubricating system.Electric control system is comprised of safety valve and automatic electrical control system.
In project organization and workflow as shown in Figure 1: the front installation Self-operated pressure of gas holder 2 pressure regulator valve 1, connects air intake filter 3, Pneumatic butterfly valve 7, bypass valve 8, the first atmospheric valve 9 and the second atmospheric valve 37 on the pipeline after gas holder 2.On connecting pipeline between gas holder 2 and air intake filter 3, air inlet stop valve 41 is housed.The second atmospheric valve 37 joint noise reduction devices 38.
Air intake filter 3 connects temperature transducer and pressure transducer.The first solenoid valve 10 is installed on the control wiring that Pneumatic butterfly valve 7 is connected with oil cut-off valve 18.
Compressor head 12 connects temperature transducer, pressure transducer, safety check 17 and gas-oil separating cylinder 23.The equipped safety valve 27 of gas-oil separating cylinder 23, blowdown valve 24, minimum pressure valve 28 and pressure transducer.Gas-oil separating cylinder 23 connects thermostat valve 26, oil strainer 25, oil cut-off valve 18 and pressure transducer by lubricant pipe.Thermostat valve 26 another roads connect oil cooler 30, aftercooler 31, hydraulic valve 32, accurate filter assembly V level 34 and accurate filter assembly A level 35 successively, and pressurized air is finally exported by the road by accurate filter assembly.
On the lubricant pipe being connected between compressor head 12 and gas-oil separating cylinder 23, one-way valve 11 is installed.Compressor head 12 and the middle installation of outlet pipe flexible coupling, can reduce the mechanical vibration that head causes.Oil strainer 25 connects a differential pressure switch 20 for oil filter.Gas-oil separating cylinder 23 also connects shuttle valve 39 and reduction valve 40.
Electric control system is combined by advanced PLC controller and high-quality electric elements, by composition of the control system one, adopts VFC, and while starting to reduce, motor torque causes the risk of electromotor high-temperature.
Gas handling system of the present utility model has slow open function, can solve helical-lobe compressor air inlet with pressure and head be impacted to the inefficacy of head shaft seal and the noise problem to vibration bleed causing.Middle pressure exhaust end base of oil injection threaded bolt head two-stage compression pressure ratio is divided and is mixed, and an oil content system is only set, and guarantees the injection system of head.Control valve adopts pneumatic control valve, accomplishes that the open and close of valve is precisely controlled, and guarantees the unmanned of nitrogen recycling supercharging helical-lobe compressor.Line seal pattern adopts high-density sealed material, accomplishes pipeline zero leakage, guarantees nitrogen gas purity.
During nitrogen recycling supercharging helical-lobe compressor work of the present utility model, motor is by elastic coupling flexible coupling transmission, drive screw main frame, male rotor drives female rotor rotation intermeshing, air and lubricant oil enter negative and positive rotor engagement cavity volume, minute two stage compression, the gas mixture that reaches rated discharge pressure is discharged to and in gas-oil separating cylinder 23, carries out Oil-gas Separation.Lubricant oil through gas-oil separating cylinder 23 crude separation passes through the control of thermostat valve 26, and when lubricating oil temperature does not reach temperature controlled valve core setting value, directly bypass is got back to head low-pressure cavity; As lubricating oil temperature surpasses setting temperature, lubricant oil need return head low-pressure cavity through oil cooler 30; A small amount of through the separated lubricant oil of deaerator essence, by secondary returning oil pipe, get back to head low-pressure cavity.Meanwhile, after compressed air separation, through minimum pressure valve 28, be discharged to aftercooler 31, access user system after cooling.
In sum, adopt nitrogen recycling supercharging helical-lobe compressor of the present utility model, unit is stable and high effective operation under nitrogen recycling supercharging variable working condition, exhaust pressure reaches 2.5-3.5MPa, realized in compressor and pressed more balance, energy consumption is more economized, and gas is cleaner, move more stablely, the lifelong operation cost of equipment is lower.
Certainly, those skilled in the art in the art will be appreciated that, above-described embodiment is only for the utility model is described, and not with opposing restriction of the present utility model, as long as within the scope of connotation of the present utility model, the variation of above-described embodiment, modification all will be dropped in the scope of the utility model claim.
Claims (10)
1. a nitrogen recycling supercharging helical-lobe compressor, is characterized in that: it is comprised of this five major part of compression system, transmission system, filtering separation system, cooling and lubricating system and electric control system, and concentrates design to make skid case structure;
Described compression system comprises suction valve, compressor host, gas-oil separating cylinder and connecting pipeline thereof;
Described transmission system comprises drive motor and coupling assembly;
Air intake filter, oil filter and deaerator are housed in described filtration system;
Cooler and screw compression machine oil are set in described cooling and lubricating system;
Described electric control system comprises safety valve and automatic electrical control system;
Wherein: gas holder (2) front installation Self-operated pressure pressure regulator valve (1), connects air intake filter (3), Pneumatic butterfly valve (7), bypass valve (8), the first atmospheric valve (9) and the second atmospheric valve (37) on the pipeline after gas holder (2);
Compressor head (12) connects temperature transducer, pressure transducer, safety check (17) and gas-oil separating cylinder (23), gas-oil separating cylinder (23) is equipped with safety valve (27), blowdown valve (24), minimum pressure valve (28) and pressure transducer, gas-oil separating cylinder (23) connects thermostat valve (26) by lubricant pipe, oil strainer (25), oil cut-off valve (18) and pressure transducer, another road of thermostat valve (26) connects oil cooler (30) successively, aftercooler (31), hydraulic valve (32), accurate filter assembly V level (34) and accurate filter assembly A level (35), pressurized air is finally exported by the road by accurate filter assembly.
2. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: on the connecting pipeline between described gas holder (2) and air intake filter (3), air inlet stop valve (41) is housed.
3. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: on the control wiring that described Pneumatic butterfly valve (7) is connected with oil cut-off valve (18), the first solenoid valve (10) is housed.
4. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: on the lubricant pipe being connected between described compressor head (12) and gas-oil separating cylinder (23), one-way valve (11) is housed.
5. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: described oil strainer (25) connects a differential pressure switch (20) for oil filter.
6. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: described the second atmospheric valve (37) joint noise reduction device (38).
7. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: described gas-oil separating cylinder (23) also connects shuttle valve (39) and reduction valve (40).
8. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: described air intake filter (3) connects temperature transducer and pressure transducer.
9. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: described electric control system is combined by PLC controller and electric elements.
10. nitrogen recycling supercharging helical-lobe compressor according to claim 1, is characterized in that: the mechanical vibration that flexible coupling causes to reduce head are installed in the middle of described compressor head (12) and outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420418324.2U CN203962403U (en) | 2014-07-28 | 2014-07-28 | Nitrogen recycling supercharging helical-lobe compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420418324.2U CN203962403U (en) | 2014-07-28 | 2014-07-28 | Nitrogen recycling supercharging helical-lobe compressor |
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| Publication Number | Publication Date |
|---|---|
| CN203962403U true CN203962403U (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420418324.2U Expired - Fee Related CN203962403U (en) | 2014-07-28 | 2014-07-28 | Nitrogen recycling supercharging helical-lobe compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508247A (en) * | 2016-01-21 | 2016-04-20 | 萨震压缩机（上海）有限公司 | Energy-saving air compressor |
| CN108730191A (en) * | 2017-04-21 | 2018-11-02 | 阿特拉斯·科普柯空气动力股份有限公司 | Oil circuit, oilless (oil free) compressor and the method for controlling lubrication and/or cooling via oil circuit |
-
2014
- 2014-07-28 CN CN201420418324.2U patent/CN203962403U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105508247A (en) * | 2016-01-21 | 2016-04-20 | 萨震压缩机（上海）有限公司 | Energy-saving air compressor |
| CN108730191A (en) * | 2017-04-21 | 2018-11-02 | 阿特拉斯·科普柯空气动力股份有限公司 | Oil circuit, oilless (oil free) compressor and the method for controlling lubrication and/or cooling via oil circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |