CN103527314A - Multistage compression energy-saving utilization technology of overall fuel gas type natural gas compressor - Google Patents
Multistage compression energy-saving utilization technology of overall fuel gas type natural gas compressor Download PDFInfo
- Publication number
- CN103527314A CN103527314A CN201310489029.6A CN201310489029A CN103527314A CN 103527314 A CN103527314 A CN 103527314A CN 201310489029 A CN201310489029 A CN 201310489029A CN 103527314 A CN103527314 A CN 103527314A
- Authority
- CN
- China
- Prior art keywords
- gas
- separation
- unit
- energy
- heat
- 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
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention relates to a multistage compression energy-saving utilization technology of an overall fuel gas type natural gas compressor. The multistage compression energy-saving utilization technology mainly relates to a gas engine tail gas complementary energy utilization system I and a natural gas separation and heat exchange system II for a natural gas compressor unit. The gas engine tail gas complementary energy utilization system I is mainly used for converting high-temperature heat energy of engine tail gas into kinetic energy of a pneumatic motor to further drive a refrigeration device to refrigerate manifold inlet gas, and the natural gas separation and heat exchange system II is used for refrigerating natural gas which is initially separated by a normal-temperature gravity separator to carry out low-temperature re-separation, then carrying out heat exchange on the re-separation gas before entering first-stage pressurizing and pressurized gas in a heat exchanger, and then enabling the gas to enter an interstage separator for next-stage pressurizing. Initial separation, low-temperature separation and interstage separation are carried out on the manifold inlet gas, the work efficiency of the compressor unit can be improved, gas consumption for the per-unit yield of the compressor unit is reduced, energy sources are saved, internal accumulated liquid of a compression cylinder can also be reduced, and the service life of the compression cylinder of the compressor unit and the service life of a gas inlet-and-outlet valve are prolonged.
Description
Technical field
The invention belongs to natural gas compressor power-saving technology and utilize field, relate to a kind of petrochemical industry supercharging, collect the whole gas combustion natural gas compressor of defeated use energy saving technology, whole gas combustion natural gas compressor is that gas engine and compressor share a bent axle, and compressor power is provided by gas engine.
Background technique
Reusing of energy source and energy conservation have become whole world question of common concern.In energy consumption apparatus field, power-saving technology is mainly reflected in two aspects, and one is for treasuring energy saving and complementary energy recycling, and it two is the minimizing specific yield energy consumption power-saving technology of increasing work efficiency.Wherein to increase work efficiency, reducing specific yield energy consumption is the major embodiment of energy saving, the present invention utilizes Compressor Group complementary energy recycling that gas engine exhaust heat-energy is converted into kinetic energy, then kinetic energy is used for improving unit working efficiency and then reduces the energy consumption of unit specific yield to reach the object of energy saving.
Whole gas combustion natural gas compressor is that the integrated type that shares a bent axle by gas engine and compressor becomes to prize supercharging collection transfer device, gas engine consumes combustion gas and provides power for compressor, and driven plunger acting is by low-pressure gas supercharging and by manifold output well station.Gas engine is discharged 380 ℃ of above high-temperature tail gas, carries away a large amount of energy emissions to air, if this portion of energy can fully recycle, will save the very considerable energy.Gas compressor group is owing to containing liquid in gas in addition, to cause unit efficiency lower, utilizing gas engine using waste heat from tail gas refrigeration to improve the gas-liquid separation efficiency of pressurized gas, is a very effective energy conservation of compressor technology to improving the system works efficiency of compressor bank.At present heat of compressor utilizes the existing people of technology to carry out relevant theoretical research, reducing aspect engine power consumption also in conceptual phase, but from the surplus energy utility of unit own and improve the technology of unit working efficiency not yet someone studies.
Summary of the invention
The object of this invention is to provide a kind of whole gas combustion natural gas compressor multistage compression energy saving technology, by the further separated unit working efficiency that improves to impurity such as rock gas steam, reach energy-conservation effect, to solve high, the ineffective problem of this integrally-built reciprocal compressor energy consumption.
Basic principle of the present invention is gas engine tail gas high temperature heat to be converted into motor kinetic energy drive the cooling unit air inlet of chiller plant, further separated by the impurity such as part steam that unit air inlet cryogenic separation is failed normal temperature to separate, improve compressor compresses efficiency and avoid compression cylinder " liquid hammer " to damage cylinder body and air inlet and exhaust valve.It is multiple that whole gas combustion natural gas compressor exhaust heat-energy utilizes technology and device to have, the collection of high-temperature tail gas heat energy of the present invention and utilization are by heat exchanging evaporator, exhaust heat-energy to be converted to steam-energy to pass to pneumatic motor and be converted into kinetic energy, high speed rotating by pneumatic motor drives the cooling wellhead manifold of chiller plant to carry out gas, by cooling wellhead manifold come gas carry out low temperature again separation and purification pressurized gas improve unit efficiency and working life.In rock gas well head supercharging technological process, generally only to wellhead manifold, come gas to carry out normal temperature gravity separation at the scene, then enter compressor buffer tank and compression cylinder supercharging, after supercharging, directly export header, because gas normal-temperature separation before entering compressor compresses cylinder is not thorough, can leave the impurity such as a small amount of hydrogen sulfide, steam, not only affect compressor boost efficiency and also can in compression cylinder, affect cylinder body and air inlet and exhaust valve life-span for hydrops, therefore lower the temperature separated significant to improving unit working efficiency and working life to entering compression cylinder gas before.
A kind of whole gas combustion natural gas compressor multistage compression energy saving technology of the present invention comprise gas engine tail gas surplus energy utility system I separated with rock gas with heat-exchange system II.Gas engine tail gas surplus energy utility system I is composed in series by gas engine 14, exhaust pipe line 15, heat exchanging evaporator 16, pneumatic motor 17 and chiller plant 18; Rock gas separation and heat-exchange system II are to be composed in series by gravitational separator 2, cooling unit 3, cold catch pot 4, heat-exchanger rig 5 and stage separation device 9.The working procedure of whole gas combustion natural gas compressor multistage compression energy saving technology is that the high-temperature tail gas of gas engine 14 discharges enters heat exchanging evaporator 16 by the unified guiding of exhaust pipe line 15, carry out thermal energy collecting and the kinetic energy that steam energy is converted into pneumatic motor 17 is driven to the rock gas of the cooling manifold 1 of chiller plant 18 after gravitational separator 2 initial gross separations, by the cooled gas of cooling unit 3, enter cold catch pot 4 and realize cryogenic separation, then enter heat exchanger 5, one-level air inlet knock out drum 6 and one-level compression cylinder 7, gas and the low temperature of through one-level outlet knock out drum 8, discharging come gas in heat exchanger 5, to carry out exchange heat, heat exchanger 5 is to come gas to carry out exchange heat raising one-level compress inlet air temperature the gas after one-level supercharging and cooled low temperature, avoid gas to cross the cold unit normal operation that affects, further separated through stage separation device 9 after gas converting heat after one-level supercharging, then enter secondary air inlet knock out drum 10, two-stage compression cylinder 11 and secondary exhaust knock out drum 12, the gas of discharging enters next stage supercharging or exports booster stations by high pressure pipe joint 19, one-level wherein, two-stage compression cylinder 7, the compressed action of 11 pistons is that a brace and connecting rod framework 13 by sharing with gas engine 14 has driven.
The beneficial effect of patent of the present invention is: the rock gas that the kinetic energy that the present invention utilizes gas engine tail gas complementary energy to be converted into pneumatic motor drives chiller plant cooling tube to remit, by reducing manifold, come temperature degree to carry out cryogenic separation, the gas of a small amount of water vapour still containing after rock gas initial gross separation and other impurity is further separated, and then can improve the working efficiency of compressor and the working life of compression cylinder.Its advantage is that (1) reduces temperature and carries out that low temperature is separated again can further remove the impurity such as water vapor that rock gas carries, and not only improves unit efficiency, and reduces " hydrops " in compression cylinder, reduces the infringement to cylinder body and valve; (2) the cooling energy of compressor inlet air temperatures is come to gas engine tail gas surplus energy utility, do not increase other energy consumption; (3) rock gas of cryotronl being remitted carry out before one-level supercharging with supercharging after the gas of temperature rise carry out exchange heat intake temperature is too low affect unit normal operation to avoid.
Accompanying drawing explanation
Fig. 1 is a kind of whole gas combustion natural gas compressor multistage compression energy saving technology schematic diagram.
In Fig. 1, be labeled as: manifold carrys out gas 1, gravitational separator 2, cooling unit 3, cold catch pot 4, heat exchanger 5, one-level air inlet knock out drum 6, one-level compression cylinder 7, one-level outlet knock out drum 8, stage separation device 9, secondary air inlet knock out drum 10, two-stage compression cylinder 11, secondary exhaust knock out drum 12, unit crankshaft & connecting 13, gas engine 14, exhaust pipe line 15, heat exchanging evaporator 16, pneumatic motor 17, chiller plant 18, next stage compression or natural gas high pressure manifold output gas 19.
Embodiment
Below in conjunction with accompanying drawing, the whole gas combustion natural gas compressor of the present invention multistage compression energy saving technology is described further.
The present invention utilizes the high-temperature tail gas surplus energy utility of whole gas combustion gas compressor set gas engine discharge with separated to improve the power-economizing method of unit working efficiency again by come gas to carry out low temperature to manifold, mainly comprise machine set system gas engine tail gas surplus energy utility system I separated with rock gas with heat-exchange system II.Gas compressor set system gas engine tail gas surplus energy utility system I is to be composed in series by gas engine 14, exhaust pipe line 15, heat exchanging evaporator 16, pneumatic motor 17 and chiller plant 18; Rock gas separation and heat-exchange system II are to be composed in series by gravitational separator 2, cooling unit 3, cold catch pot 4, heat-exchanger rig 5 and stage separation device 9.Wherein the chiller plant 18 of gas engine surplus energy utility system I is separated with rock gas is connected with the cooling unit 3 of heat-exchange system II, and unit supercharging is driven by the crankshaft & connecting 13 being connected with gas engine 14 with compression cylinder 7,11.
The whole gas combustion natural gas compressor of the present invention multistage compression energy saving technology is that gas engine tail gas high temperature heat is converted to steam-energy by heat exchanging evaporator by exhaust heat-energy, drive pneumatic motor high speed rotating, drive again chiller plant cooling tube to remit gas, by cold catch pot, further remove rock gas moisture and impurity raising unit compression efficiency and avoid cylinder body " liquid hammer " to damage.It is first separated that on-the-spot natural gas boosting technological process generally just comes gas to realize by gravitational separator at wellhead manifold, enters compressor buffer tank and compression cylinder and carry out supercharging, after supercharging, directly by high pressure header, exports; Because gas normal-temperature separation before entering compression cylinder is not thorough, can leave the impurity such as a small amount of hydrogen sulfide, steam, not only affect compressor boost efficiency also can be in compression cylinder hydrops, affect cylinder body compression efficiency and air inlet and exhaust valve life-span, therefore come gas 1 to carry out low temperature to manifold, separation is significant to improving unit working efficiency and working life again.Working procedure of the present invention is that the high-temperature tail gas of gas engine 14 discharges enters into heat exchanging evaporator 16 by exhaust pipe 15 unifications, the kinetic energy that heat energy is converted into pneumatic motor 17 drives the rock gas of the cooling manifold 1 of chiller plant 18 after gravitational separator 2 initial gross separations, after cooling by cooling unit 3, enter the impurity such as cold catch pot 4 separated steam and then enter heat exchanger 5, one-level air inlet knock out drum 6 and one-level compression cylinder 7, gas and the low temperature air inlet of from one-level outlet knock out drum 8, discharging carry out exchange heat heat exchanger 5, heat exchanger 5 is to come gas to carry out exchange heat raising one-level compression cylinder inlet temperature the gas after one-level supercharging and cooled low temperature, avoided cold gases affect unit normal operation, then by 9 pairs of stage separation devices, the gas after supercharging is further separated, then enter secondary air inlet knock out drum 10, two-stage compression cylinder 11, secondary exhaust knock out drum 12, gas after supercharging enters next stage supercharging or passes through high pressure pipe joint 19 output well stations.Wherein the reciprocal compressed action of one-level, two-stage compression cylinder 7,11 pistons is by starting a shared brace and connecting rod framework 13 of 14 machines to drive with combustion gas.
The present invention program's know-why has below only just been described in conjunction with a kind of embodiment of whole gas combustion natural gas compressor multistage compression energy saving technology, for the rock gas by after initial gross separation, carrying out subcooled driving mode can have multiple, this programme is to utilize gas engine tail gas complementary energy reutilization technology to drive chiller plant work, also can drive chiller plant 18 as electric energy etc. by whole gas combustion compressor common crankshaft or alternate manner, cooling unit 3, reach and come gas to carry out the cooling low temperature separated object that improves unit efficiency reduction energy consumption again to wellhead manifold.
Claims (4)
1. a whole gas combustion natural gas compressor multistage compression energy saving technology, it is characterized in that rock gas separation is mainly to provide the cooling wellhead manifold of motivational drive chiller plant to carry out gas 1 by unit gas engine tail gas surplus energy utility system I with heat-exchange system II, by cold catch pot 4, further remove the impurity such as steam that contain in rock gas, to improve unit working efficiency, reduce specific yield gas consumption, gas engine surplus energy utility system I is separated with unit rock gas to be connected with the cooling unit 3 of heat-exchange system II, compression cylinder 7 for unit supercharging, 11 crankshaft & connectings that are connected with gas engine 14 13 drive.
2. a kind of whole gas combustion natural gas compressor multistage compression energy saving technology according to claim 1, is characterized in that the separation of unit rock gas is to be composed in series by gravitational separator 2, cooling unit 3, cold catch pot 4, heat-exchanger rig 5 and stage separation device 9 with heat-exchange system II.
3. a kind of whole gas combustion natural gas compressor multistage compression energy saving technology according to claim 1, it is characterized in that unit gas engine tail gas surplus energy utility system I is composed in series by gas engine 14, exhaust pipe 15, heat exchanging evaporator 16, pneumatic motor 17 and chiller plant 18, the power of chiller plant 18 also can be provided or be provided by additional electrical energy or other power by unit bent axle.
4. whole gas combustion natural gas compressor multistage compression energy saving technology according to claim 1, it is characterized in that heat exchanger 5 is that the rock gas after the rock gas before supercharging after cryogenic separation and one-level supercharging intensification is carried out to exchange heat, makes intake temperature reach the intake temperature of compressor regulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489029.6A CN103527314B (en) | 2013-10-18 | 2013-10-18 | A kind of overall gas combustion natural gas compressor multistage compression energy-saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310489029.6A CN103527314B (en) | 2013-10-18 | 2013-10-18 | A kind of overall gas combustion natural gas compressor multistage compression energy-saving system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103527314A true CN103527314A (en) | 2014-01-22 |
| CN103527314B CN103527314B (en) | 2016-01-13 |
Family
ID=49929602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310489029.6A Expired - Fee Related CN103527314B (en) | 2013-10-18 | 2013-10-18 | A kind of overall gas combustion natural gas compressor multistage compression energy-saving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103527314B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0453007A2 (en) * | 1990-03-23 | 1991-10-23 | Adviesbureau Amerconsult B.V. | Gas heating system |
| WO2002090726A2 (en) * | 2001-05-02 | 2002-11-14 | Praxair Technology, Inc. | Work recovery from process involving steam generation |
| US20040200221A1 (en) * | 2003-02-03 | 2004-10-14 | Sorter Richard L. | Heat transfer system for a co-generation unit |
| CN201891477U (en) * | 2010-11-26 | 2011-07-06 | 中国重汽集团济南动力有限公司 | Exhaust afterheat utilization system for natural gas engine |
| JP2012007500A (en) * | 2010-06-23 | 2012-01-12 | Hino Motors Ltd | Exhaust heat recovery device of internal combustion engine |
| CN102493851A (en) * | 2011-12-22 | 2012-06-13 | 吉林大学 | Energy-saving technology utilizing device of integrated type natural gas compressor |
| CN102937086A (en) * | 2012-10-26 | 2013-02-20 | 西南石油大学 | Method for testing system efficiency of integrated gas reciprocating natural gas compressor set |
-
2013
- 2013-10-18 CN CN201310489029.6A patent/CN103527314B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0453007A2 (en) * | 1990-03-23 | 1991-10-23 | Adviesbureau Amerconsult B.V. | Gas heating system |
| WO2002090726A2 (en) * | 2001-05-02 | 2002-11-14 | Praxair Technology, Inc. | Work recovery from process involving steam generation |
| US20040200221A1 (en) * | 2003-02-03 | 2004-10-14 | Sorter Richard L. | Heat transfer system for a co-generation unit |
| JP2012007500A (en) * | 2010-06-23 | 2012-01-12 | Hino Motors Ltd | Exhaust heat recovery device of internal combustion engine |
| CN201891477U (en) * | 2010-11-26 | 2011-07-06 | 中国重汽集团济南动力有限公司 | Exhaust afterheat utilization system for natural gas engine |
| CN102493851A (en) * | 2011-12-22 | 2012-06-13 | 吉林大学 | Energy-saving technology utilizing device of integrated type natural gas compressor |
| CN102937086A (en) * | 2012-10-26 | 2013-02-20 | 西南石油大学 | Method for testing system efficiency of integrated gas reciprocating natural gas compressor set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103527314B (en) | 2016-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202811078U (en) | Ultra-supercritical air energy storage/release system | |
| CN111927584A (en) | Liquid compressed air energy storage system and method for improving operation flexibility of thermal power generating unit | |
| CN105135751A (en) | Heating, electricity and cooling combined supply system based on heat pump technology and air compression and electricity storage technology | |
| CN107178934A (en) | A kind of residual heat of air compressor advanced recycling system | |
| CN202176380U (en) | Comprehensive utilization device of waste steam latent heat of turbine | |
| CN204923571U (en) | Thermoelectric cold trigeminy supplies system based on heat pump technique and compressed air electric power storage technique | |
| CN114109543B (en) | Liquid compressed air energy storage method and system utilizing bypass heat supplement of steam turbine | |
| CN201007231Y (en) | Mine total energy approach device of coal mine mash gas engines | |
| CN110259537B (en) | Carbon dioxide Rankine cycle power system and operation method thereof | |
| CN206989502U (en) | A kind of residual heat of air compressor advanced recycling system | |
| CN103527314B (en) | A kind of overall gas combustion natural gas compressor multistage compression energy-saving system | |
| CN103266952B (en) | Based on the energy comprehensive utilization system of supercritical air | |
| CN204593945U (en) | Electric power storage type methane driving compression type heat pump system | |
| CN111472848B (en) | Heat supply steam driven liquid hydrogen preparation system based on energy cascade utilization | |
| CN210346385U (en) | Air separation exhaust steam latent heat utilization system driven by steam turbine | |
| CN209875313U (en) | Power generation system integrating supercritical carbon dioxide circulation and ammonia absorption refrigeration | |
| CN101865568A (en) | Shaft coupling pressure energy recovery heat pump mechanism of motor | |
| CN103527313B (en) | A kind of overall gas combustion natural gas compressor improves the method for compression efficiency | |
| CN207701325U (en) | A kind of cooling system of air compressor | |
| CN105561742A (en) | Carbon dioxide capture system assisted by combination of solar energy and geothermal energy | |
| CN213088181U (en) | Air compressor step cooling energy-saving and water-saving system | |
| CN220453981U (en) | Compressor waste heat recovery system | |
| CN209371566U (en) | Cold ambient air temperature source heat engine | |
| CN203719229U (en) | Efficient refrigerating system for thermal power plant on basis of gradient utilization of energy | |
| CN116697385B (en) | Carbon emission reduction and energy storage system for thermal power plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20160113 Termination date: 20161018 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |