CN106089637A

CN106089637A - For effectively managing gas handling system and the method for the change in gas condition

Info

Publication number: CN106089637A
Application number: CN201610283735.9A
Authority: CN
Inventors: 托德·史蒂文·阿博特·吉布斯
Original assignee: Atlas Copco Comptec LLC
Current assignee: Atlas Copco Comptec LLC
Priority date: 2015-04-30
Filing date: 2016-04-29
Publication date: 2016-11-09
Also published as: US20160319810A1; US20220196003A1; CN205805860U; JP2018520306A; EP3289292A1; US20220196004A1; JP6832869B2; WO2016176006A1; KR20180004198A; EP3289292A4; KR102562422B1

Abstract

The invention provides the System and method for of a kind of compression effectively managing gas for the operating condition according to compressibility and operator scheme, wherein this system includes: booster compressor；Booster compressor bypasses；It is connected to booster compressor and the pipeline of booster compressor bypass；Bypass or the device of booster compressor for gas stream being optionally directed to booster compressor according to current operational conditions；And it is connected to the baseline compressor of booster compressor and booster compressor bypass duct.

Description

For effectively managing gas handling system and the method for the change in gas condition

Cross-Reference to Related Applications

This application claims in entitled " the A GAS HANDLING SYSTEM AND that on April 30th, 2015 submits to METHOD FOR EFFICIENTLY MANAGING CHANGES IN GASEOUS CONDITIONS " U.S. Patent application The priority of No.62/155129 and rights and interests, its content is incorporated herein by way of reference.

Technical field

System and method for for gas handling system is set forth below, and increases more specifically to having operating efficiency The liquefied natural gas (LNG) of the gas compression system added or liquefied petroleum gas (LPG) gas handling system be used for managing gas The method of the change in the environmental condition of processing system.

Background technology

Sub-cooled technology can be utilized to manufacture liquefied natural gas by natural gas or oil gas are cooled to liquid (LNG) with liquefied petroleum gas (LPG).By condensing gas into liquid at cryogenic temperatures, LNG or LPG can be stored in case Or in bin, keep as liquid and carry distance to desired final destination, this LNG or LPG is permissible there By consuming equipment or the vehicle revaporization of gas, pressurizeing and use.

Being stored in storage box and the liquid gas in bin to manage, use or carrying, LNG or LPG may need Experience the operation pressure that one or more compression step makes great efforts to make LPG or LNG increase to the system using LNG or LPG.Current Compression method and system are considered as inefficient.The inefficient System and method for single compressor of dependence processes and all compresses work Make load LNG or LPG to be compressed to desired pressure.The operating condition of the known system utilizing LNG or LPG system is arbitrarily Specified moment all significantly changes according to the operator scheme used by these complicated LNG or LPG systems.Utilizing single compressor Under the system of the management locating process gases, it is necessary to install can process LNG or LPG to compressibility expectation maximum input and Compress it maximum and require the compressor of pressure.If, with not processing the contingent whole variable changes of operating condition Compressor, the extreme variation that this single compressor may strike the beam and can not process in operating condition, and the most not Can operate fully under full terms.

Relying on single compressor to process in the system of large volume of LNG or LPG, the size of compressor may be very Big and use more multi-energy to operate compared with less compressor.Additionally, when single for each operator scheme of system When individual compressor is only available selection, compressor must be unable to enter low-power or power save mode in work continuously. Owing to compressor oversize, that power is excessive is operating always, even if will meet at less, more energy-conservation compressor During normal operating condition, it may also be especially low-energy-efficiency that gas compression system runs continuously.

Thus, it is desirable to the pressure in the compressor of use, reduction system can dynamically be regulated according to current operating condition The gas handling system of the efficiency that total operating energy of contracting machine requires and increase LNG or LPG compresses and method.

Summary of the invention

The first aspect of the disclosure relates to gas compression system, it include booster compressor, booster compressor bypass duct, Being connected to the pipeline of booster compressor and booster compressor bypass duct, wherein gas stream is selected by pipeline according to current operational conditions Selecting property it is directed to booster compressor bypass or booster compressor, and is connected to booster compressor and booster compressor shunt valve The baseline compressor in road.

The second aspect of the disclosure relates to the method for compressed gas, including step: provide booster compressor；There is provided and increase Pressure compressor；Selecting operator scheme from the first operator scheme or the second operator scheme, wherein the first operator scheme is by gas Body guiding is bypassed by booster compressor and the second operator scheme directs gas into booster compressor, is become by this gas compression Compressed gas, and all provide for both of which baseline compressor with receive from booster compressor bypass gas or Person is from the compressed gas of booster compressor and by baseline compressor compressed gas or compressed gas.

By following detailed disclosure combine accompanying drawing will be more clearly understood and completely understand structure with operate above-mentioned With further feature.

Accompanying drawing explanation

To describe some in embodiment in detail with reference to figure below, the most identical reference instruction is identical Component, wherein:

Fig. 1 a describes the schematic diagram of an embodiment of gas compression system；

Fig. 1 b describes the schematic diagram of the alternative embodiment of the gas compression system of Fig. 1 a；

Fig. 2 describes the schematic diagram of another alternative embodiment of gas compression system；

Fig. 3 describes the schematic diagram of another alternative embodiment of gas compression system；

Fig. 4 describes an embodiment of the calculating system of gas compression system；And

Fig. 5 describes the schematic diagram of the alternative gas compression system including multiple booster compressor.

Detailed description of the invention

Disclosed device described below, method and system the detailed description of embodiment here by example and not The mode limited proposes referring to the drawings.Although being illustrated in detail in and described some embodiments, it should be understood that Without departing from may be made that multiple change and amendment in the case of scope of the following claims.The scope of the present disclosure will be in no way intended to limit In the quantity of building block, its material, its shape, its relative arrangement etc., and it is only used as the example of embodiment of the present disclosure Open.

As the preamble described in detail, it should be noted that as used in this description with claims, remove Non-content additionally clearly indicates, otherwise singulative " ", " one " and " being somebody's turn to do " include complex item.

Referring to the drawings, the schematic diagram of Fig. 1 a describes compressibility 100, and it can be implemented or integrated be used in systems Manage, control, use, carry or transport such as from the gas of LNG or LPG system.It is described below and the application's The embodiment of the compressibility described in accompanying drawing may apply to the natural gas of number of different types, LNG or LPG system, Include but not limited to LNG or LPG carrier, send system including LNG/LPG carrier propulsion system, re-liquefied system with LPG or LNG System, and the liquefaction of LNG/LPG factory or purification facility.The embodiment of compressibility described below can also be integrated in use In other has the system of LPG or the LNG vehicle utilizing the gas-powered electromotor of natural gas, oil, and gas station or use In the facility that LNG or LPG is transported to carrier, vehicle and consumer.

With reference to Fig. 1 a, the embodiment of compressibility 100 can receive compression or uncompressed natural gas flow via pipeline 101 Or oil air-flow.Pipeline 101 can carry natural gas flow or the oil air-flow in the source from such as bin or storage box.One In a little embodiments, bin or storage box can be filled with LNG or LPG.In other embodiments, compressibility is entered The gas source of 100 can before arrive compressibility 100 via pipeline 101 from possibly also with LNG or LPG upstream process or System enters compressibility 100.When gas enters compressibility 100 by pipeline 101, this gas can arrive cross point 102, gas can enter booster compressor 105 or gas can enter booster compressor bypass 103 there.Enter supercharging The gas of compressor 103 can avoid booster compressor 105.

The embodiment of compressibility 100 can utilize the use of booster compressor 103 so that in specific operation condition mistake Journey is avoided the use of booster compressor 105.Such as, there is no booster compression at the gas entering system 100 via pipeline 101 Machine 105 can be compressed with under the operating condition of management by system 100 in the case of assisting fully, can walk around booster compression Machine 105.Not enabling booster compressor 105 or other auxiliary device of the compressed capability giving tacit consent to compressibility 100 can be supplemented In the case of the condition that managed by system 100, base condition can be referred to as.

The embodiment of base condition can be user defined value or the system definition of the environment about compressibility 100 Value, or the scope of value, wherein this system can be filled in the case of other auxiliary equipment not utilizing such as booster compressor 105 Divide ground operation.Base condition can be according to the setting of compressibility 100 embodiment and the equipment being arranged in compressibility Whole capability change.The whole capability of each system embodiment can be according to the structure of compressibility and execution compressibility The equipment of function and change.

User can be configured differently disclosed pressure in the environmental condition of its lower operation according to compressibility The base condition of the embodiment of compression system.The environmental condition that user may consider when constructing base condition can include becoming The value of amount or the scope of value, these variablees include but not limited to the volume of the gas of entrance system 100, the temperature of system, gas Temperature, the operating time, the energy expenditure of Default device in one group of time interval, compressibility and under base condition The maximum operational capacity of device.

Furthermore, it is possible to utilize the one or more Sensor monitorings being arranged in compressibility 100 and measure compressibility Environmental condition in 100.Such as, one or more pressure transducers, heat sensor or temperature sensor can be arranged in compression In the pipeline of system 100, with transmission and the measurement of operating environment and flow by the relevant environment of the condition of the gas of system Condition data.In other embodiments, one or more sensors can be assembled or are integrated in baseline compressor 109, increase To determine that system 100 operates in base condition in pressure compressor 105 or heat exchanger 111,112.At some embodiments In, the data received by sensor in compressibility 100 can be for transmission to by the operator of compressibility 100 or manager The calculating system of the such as control panel or all-in-one that use, safeguard or observe.

Fig. 4 show according to embodiment of the present disclosure for receive relevant to the environmental condition of gas compression system Transmit data and information and enable the computer system 490 of one or more operator scheme.Computer system 490 can include Processor 491, it is connected to the input equipment 492 of processor 491, is connected to the output device 493 and each of processor 491 It is connected to the storage device 494 and 495 of processor 491.Input equipment 492 can especially keyboard, mouse etc..Output device 493 is permissible, especially printer, draft machine, computer screen, tape, portable hard drive, floppy disk etc..Storage device 494 and 495 can With especially, hard disk, floppy disk, tape, optical storage, such as CD (CD) or digital video disk (DVD), dynamic randon access Memorizer (DRAM), read only memory (ROM) etc..Storage device 495 can include computer code 497, and it can be to include The computer program of computer executable instructions.Computer code 497 includes recording and shows inside gas compression system The software of environmental condition or programmed instruction and can selecting further in response to the ambient condition data being supplied to calculating system Enable to selecting property in the operator scheme described in the disclosure is one or more.Processor 491 performs computer code 497. Storage device 494 includes inputting data 496.Input data 496 include the input needed by computer code 897.Output device 493 displays are from the output of computer code 497.Storage device 494 or 495 (or the most unshowned one or more its It stores device) or both of which can serve as computer-usable storage medium (or program storage device), it has embodiment Computer-readable program wherein and/or have other data being stored therein, wherein computer-readable medium includes Computer code 497.As a rule, the computer programmed product of computer system 490 (or, alternatively, goods) can wrap Include described computer and can use storage medium (or described program storage).

Although computer system 490 is described as the particular configuration of hardware and software by Fig. 4, such as those of skill in the art Will understand that, the specific calculation system 490 that hardware can be combined Fig. 4 for this purpose with any configuration of software makes With.Such as, storage device 494 and 495 can be the part of single storage device rather than separate storage device.

In some embodiments, be not from hard-drive, CD or other is writable, can re-write or can move Except hardware storage apparatus 495 storage with read, but the computer program code 497 of storage can be stored in static state, non-move Remove, the most read-only storage (ROM) device on read-only storage medium, or can by processor 491 directly from this static state, Non-removable, read-only medium read.Similarly, in some embodiments, the computer programming code 497 of storage can conduct Embodied on computer readable firmware stores, or directly can be read rather than from such as hard disk driver from this firmware by processor 491 Dynamic or the removable hardware data storage 595 of dynamic or CD reads.

The embodiment of compressibility 100 can include multiple operator scheme.These multiple operator schemes can be according to compression The structural change of the equipment in system.In the embodiment with more complicated structure, the quantity of operator scheme may ratio more Simply or less complicated system is bigger.The plurality of operator scheme can also be according to the operating condition of compressibility experience Change or fluctuate and change.Such as, when there is specific operating condition in compressibility, in the operation of compressibility 100 During experience the more multiple operating mode that the system of extensive operating condition can include selecting.Operating condition experiences relatively The similar embodiment of the compressibility 100 of few change can be programmed for the operator scheme with more limited quantity.At some In embodiment, receiving calculating system, control panel or the all-in-one from the data of sensor can be in response to by being present in The change of the environmental condition of the one or more sensor record in gas compression system automatically selects and enables description below Operator scheme in one or more.In alternative embodiment, the user of gas compression system or administrative man can ring The change should being present in the environmental condition in gas compression system manually selects operator scheme described herein and transmits To receiving with monitoring by the calculating system of the environmental condition of one or more sensor record.

In some embodiments, when can select default mode of operation when Installed System Memory is in base condition.At benchmark Under the conditions of the embodiment of system 100 of operation this default mode of operation can be considered its first operator scheme.First In operator scheme, enter the compression of system 100 by pipeline 101 or uncompressed gas stream can optionally guide as continuing logical Cross bypass 103 and avoid booster compressor 105.By avoiding booster compressor, booster compressor in the first mode of operation 105 may remain in low power state or in closed mode, if or previously enable, then change from the second operator scheme Change returns to the first operator scheme and compressibility can be caused to perform from the state of enabling, booster compressor is switched to low-power shape The step of state.Avoiding booster compressor 105 under reference operating conditions can for reducing the energy expenditure of compressibility 100 Can be useful.After leaving bypass 103, gas can enter pipeline 107.For the purpose discussed and identify, in this Shen In please, pipeline be remembered by independent terrestrial reference, but in some embodiments, pipeline 101,103 and 107 can be through described herein with And a continuous conduit of each parts of the gas compression described in Fig. 1 a to Fig. 3.

Leave pipeline 103 and the gas along pipeline 107 conveying can enter the entrance of baseline compressor 109.Benchmark Compressor 109 can be in compressibility 100 under base condition exercisable any compressor.Baseline compressor 109 is permissible It is the gas being operated into and leaving system 100 under base condition in the case of not from the assistance further of auxiliary equipment The compression of body and the compressor of discharge.In some embodiments, baseline compressor can be referred to as low-power compressor.Low merit Rate compressor can be single-stage compressor or compound compressor.This type of baby compressor being present in compressibility can take The whole system being certainly integrated in compressibility 100.Such as, baby compressor can have one to four levels or more Many.Such as, can have 1 grade of baby compressor in the embodiment using steam turbine propulsion system, but double combustion Expecting diesel-electric power (DFDE) propulsion system, be such as used for LNG carrier these, this baby compressor can be 2 grades or 4 grades pressures Contracting machine.

Referring back to Fig. 1 a, the gas of the entrance entering baseline compressor 109 can experience and be pre-selected or scheduled volume Compress and want as the requirement of other system any of its part or desired pressure using arrival LNG, LPG or compressibility 100 Ask.Once the gas within baseline compressor has had arrived at suitable hierarchy compression, and the compressed gas in pipeline 110 is the most permissible Discharge from compressibility 100 and be further conveyed to desired destination, machine, electromotor or equipment so that in compression system The downstream of system 100 uses further or stores.Additionally, the compressed gas in pipeline 110 may exit off outlet and enters another The entrance of individual compressor is to compress further in compressibility.

The embodiment of baseline compressor 109 can be at LNG, LPG or for compressing other gas use of purpose Any type of compressor used in system.The example of the compressor used can include such as centrifugal compressor or axial flow The power compressor of formula compressor.Other compressor that can use in compressibility 100 can include reciprocating compressor Or Rotary Compressor.The type of reciprocating compressor can include but not limited to diapragm compressor, double acting compressor or Single acting compressor, and the type of Rotary Compressor can include that screw compressor, screw compressor, Pendular ring type compress Machine, scroll compressor or sliding-vane compressor.

The embodiment of system 100 can also include other operations one or more of the plural number outside the first operator scheme Pattern.When one or more variablees of environmental condition of base condition of descriptive system 100 by user or System Programming or When the value set or the scope above and below of value extend, each different operator scheme can be started individually.Can pass through Title or numeral address different operation modes in each.Such as, each operator scheme subsequently can be referred to as second, Three, the the 4th, the 5th, the 6th etc., or by descriptive name, such as blower operations pattern, low-power operating mode, supplement behaviour Operation mode, Operation for liquefaction pattern or can represent purpose any of operator scheme that compressibility uses other is descriptive Title.

Can respond base condition present in compressibility or the different changes in environmental condition and by compressibility 100 Programming, the quantity of the operator scheme selecting or enabling do not limit.Fluctuation in reference operating conditions can be based on compression system System 100 connection LNG, LPG or other gas system type continually, infrequently or with set interval occur. Other system of LNG, LPG or other gas system can enable constantly or disable and the effect of these other systems can To cause the change of the environmental condition being present in compressibility 100.In response to change, compressibility 100 can by triggering, Enable, start or perform the one or more different operation modes being programmed for being activated in response to the environmental change of compressibility Respond.

In the case of the environmental condition within compressibility 100 may cause another operator scheme to enable, can be with The mode that user or system self are manually or automatically selected, design or programmed enables other that be connected to compressibility 100 Equipment.Such as, in some embodiments, second or operator scheme subsequently can enable booster compressor 105 with by pressure The gas assist baseline compressor 109 that contracting is incorporated in system 100.Booster compressor 105 can refer to provide gas compression Pressure in system increase temporarily and exceed under base condition operation compressor ability additional compression with meet from Open any kind of compressor of the goal pressure of the compressed gas of gas compression system.The embodiment discharge of booster compressor In the entrance or suction line of another compressor.The embodiment of the booster compressor 105 in system 100 can be by by supercharging The gas of compressor 105 compression is discharged in the entrance of baseline compressor 109 to compress further via intermediate conduit 107.

In one or more embodiments of system 100, wherein operator scheme enables, such as in response to gas compression Present in system 100, environmental condition is beyond the scope of pre-programmed or predetermined value or value, arrives system 100 via pipeline 101 Gas can optionally be directed to the supercharging that proceeds to booster compressor 105 rather than use in the first mode of operation Compressor 103.When gas enters booster compressor 105, they may be compressed to be managed by baseline compressor 109 The intermediate pressure of reason.This primary compression step can simultaneously by minimizing go to baseline compressor 109 gas volume with And assist baseline compressor by reducing the total amount that will perform to compress by baseline compressor, in order to meet and be discharged into pipeline The pressure requirements of the compressed gas in 110.Subsequently, the base of the intermediate compression gas from booster compressor 105 outlet is received Quasi-compressor 109 can further compressed gas to realize the compression of the compressibility 100 goal gradient in pipeline 110.

Such as, under base condition, when system operates under specified temp or temperature range, the first behaviour of system 100 Operation mode can keep enabling.When the temperature of system 100 sets above and below in programming for the temperature range of base condition During fluctuation, can be started by gas compression system or enable the second operator scheme.In this example, benchmark is increased to over when temperature During condition, the volume of the gas entering compressibility 100 can be increased above that baseline compressor 109 suitably compression alone is with full The grade of the ability of the requirement discharge pressure in the pipeline 110 of foot LNG, LPG or other gas system.At some embodiments In, the second operator scheme can start the second compressor, such as booster compressor 105, to compensate owing to temperature fluctuation exceedes base The rising of the gas volume that floating screed part causes.In this embodiment, booster compressor 105, booster compressor 105 are once enabled Just can start the gas compression by entering compressibility to the intermediate pressure by baseline compressor management and control.At some embodiments In, can have more than the gas entering compressibility 100 via pipeline 101 from the compressed gas of booster compressor 105 discharge Pressure, but be less than finally discharging pressure 110.Receive and compress from the benchmark of the compressed gas discharged from booster compressor 105 Machine can compress further from booster compressor discharge gas pressure to be further risen to the pipe of gas handling system The pressure of the discharge demand in road 110.

The embodiment of compressibility 100 can be dynamically responsive to compressibility at the arbitrfary point in its operating process The change of the environmental condition existed in 100.As it has been described above, when limiting the variable change of environmental condition to being set as base condition When the scope of value or value is outside, the embodiment of compressibility 100 can enter one or more different operator scheme.Permissible By being selectively enabled second or operator scheme subsequently and return to the first behaviour subsequently when again meeting base condition There is this dynamic response to the change in the environmental condition of compressibility 100 in operation mode.

Utilizing temperature example above, the embodiment of LNG or LPG system can include can enabling when needed and stopping Re-liquefied system.Enabling of re-liquefied system at a part of LNG or LPG system can actually cause with disabling Make to be entered rising and the reduction of the ambient temperature of the gas of compressibility 100 by pipeline 101.In some of LNG or LPG system In embodiment, the rising enabling the gas temperature that can cause entrance compressibility 100 of re-liquefied system and this temperature Rising can be more than the base condition of the first operator scheme.In response to the temperature including more than acceptable reference temperature range Environmental condition, the embodiment of system 100 can dynamically enable the second operator scheme to assist compressibility.Second operation mould Formula can utilize booster compressor 105 and baseline compressor 109 to realize comprising at the gas of compressibility 100 the most together The discharge pressure of the requirement in the pipeline 110 of reason system.

Subsequently, LNG, LPG or other gas handling system can be connected to the re-liquefied system of downstream compressor system System disables.Re-liquefied system disable the temperature that may cause to arrive the gas of the compressibility 100 being positioned at re-liquefied system downstream Spend to return be reduced in base condition.Return to preset or the acceptable model of base condition of preprogramming in response to gas temperature In enclosing, compressibility 100 can make to stop in the second operator scheme and operates and return to the first operator scheme, and this can be in order to Unwanted booster compressor 105 is walked around with booster compressor bypass 103.

The embodiment of compressibility 100 can change according to the equipment of the part as compressibility.Such as, system 100 can include the valve 124 of varying number, 125,126,128, switch or door 121,123 and heat exchanger or charge air cooler 111, 112.It is integrated in the type of the valve in compressibility 100, switch, door, heat exchanger or charge air cooler, structure, position and/or quantity The purpose of LNG, LPG or other gas handling system being connected with the embodiment of compressibility 100 can be depended on.Additionally, Booster compressor 105 or the size of baseline compressor 109, level can change with energy expenditure, and the compressor thus needed Quantity, and provided the amount of the cooling of these compressors 105,109 can also basis by multiple heat exchangers or charge air cooler Need to change to keep suitable operating condition or the operator scheme of selection.

In other embodiments, operator scheme can include individually operated booster compressor 105, can close base simultaneously Quasi-compressor.Such as, it is likely to result under conditions of this operator scheme enables in the environmental condition within compressibility, via pipeline The gas of 101 arrival systems 100 may be advanced to booster compressor 105 rather than utilizes the first operator scheme or other behaviour The booster compressor bypass 103 used in operation mode.When gas enters booster compressor 105, this gas can be compressed to suitable In the pressure of the compressed exhaust with goal gradient, to produce compressed gas in pipeline 110.Low power reference pressure is walked around at gas In this embodiment of contracting machine 109, gas can leave booster compressor 105 via pipeline 107, and via baseline compressor Baseline compressor is walked around in bypass, and baseline compressor bypass construction is for walking around baseline compressor 109 (can be turned off) and arriving Reach the outlet of the compressibility of releasing compressed gas 110.

In the alternative embodiment of compressibility 200 as shown in Figure 1 b, compressibility 200 can also include permissible It is connected to the entrance of booster compressor 105 and the circulation loop 201 of outlet.In some embodiments of compressibility 200, A part for the gas entering compressibility 200 via pipeline 101 can enter booster compressor at the first cross point 102 105 rather than bypass 103.When the first operator scheme enables, in order to limit the effect of booster compression loop, leave booster compression The compressed gas of the outlet of machine 105 can be transferred in circulation loop 201 rather than continue to arrive forward pipeline 107.Work as gas, Such as intermediate compression gas, when leaving the outlet of booster compressor, circulation loop 201 can leave the row of booster compressor The gas of outlet delivers to the entrance of booster compressor to feedback.

As shown in the illustrative embodiments at Fig. 1 b, the gas entered via pipeline 101 can be directed to enter Booster compressor 105 or booster compressor bypass 103.When being partly into booster compressor 105 of gas, can pass through Control valve, the control valve 124 being such as described in the drawings, prevent discharging gas and enter pipeline 107.Due to compressed gas not Therefore can force a gas into make intermediate compression gas loop back to following of booster compressor 105 by control valve 124 In ring loop 201.When gas conveying is become pressurization by the pipeline of booster compressor, other gas may not enter increasing Press compressor 105 or circulation loop 201 and thus when system 200 works in the first mode of operation, via pipeline 101 The gas entering compressibility 200 may be forced through bypass 103.

In some embodiments, bypass 103 can also include control valve 125.The first operation under in base condition In pattern operation time, this control valve 125 can stay open, with allow gas pass bypass 103 entrance second pipes 107 in also And travel further in the entrance of baseline compressor 109.But, in the embodiment of compressibility 200, wherein operator scheme May be switched to the second operator scheme from the first operator scheme, the control valve 125 being present in bypass 103 can close. Similarly, owing to control valve 125 closes when changing to the second operator scheme, it is present in the control in booster compressor 105 loop Valve 126 and 124 processed can be opened.In this embodiment, when starting the second operator scheme, control valve 126 will be opened, and control Valve 124 will be opened, and then control valve 125 by Guan Bi and directs gas into booster compressor 105.Control valve 125 can portion Divide ground or fully close to limit or prevent the gas leaving booster compressor 105 from returning to booster compressor 105 Entrance.Thus, the gas of entrance compressibility 200 can be conducted through and include that the alternative path of booster compressor 105 is with warp It is discharged in entrance or the suction line of baseline compressor 109 by pipeline 107.

Gas owing to being previously strapped in circulation loop 201 discharges from booster compressor 105, and this gas can lead to now The excessive control valve 124 opened when enabling the second operator scheme is left.Not being to be strapped in circulation loop 201, gas now may be used With under the expectation intermediate pressure provided by booster compressor 105 enter pipeline 107 and can by baseline compressor suitable The compressed exhaust pressure that is pressurized in pipeline 110.Additionally, the embodiment of compressibility 200 can also include one or many Individual valve or door, such as check-valves 121 and 123, to prevent or to stop the gas in pipeline 107 dynamic to backflow in systems.Control Valve, such as control valve 124, can close, near or be otherwise arranged near check-valves 123 to allow supercharging Compressor 105 is isolated and starts in the case of not affecting system 200.As in fig. la and lb, one way stop peturn valve 121 are possible to prevent the gas advancing to pipeline 107 from by-pass line 103 to proceed back to by-pass line.Equally, check-valves 123 are possible to prevent the gas left in booster compressor entrance pipeline 107 to flow back into booster compressor loop or circulation loop 201 In.

It is described herein as and in the illustrative embodiments of the compressibility of diagram in Fig. 1 a, Fig. 1 b, Fig. 2 and Fig. 3, Booster compressor 105 and baseline compressor 109 can be described as the compressor unit of two or more physical separation.But, In alternative embodiment, booster compressor 105 and baseline compressor 109 can be to have the single compressor list of multiple compression stage Unit, it includes booster compressor part and baseline compressor part.Similar with said system, single, integral compressor unit can Multiple grades of operations and it is further programmed to have similar with system described above with the environmental condition according to compressibility Multiple selectively actuatable patterns.Similarly, the embodiment of integrated compressor unit is additionally may included in the first operation mould The bypass opened during formula operation, it is possible to prevent gas to enter the booster stage of integral compressor；And in some embodiments Circulation loop for booster stage.Additionally, similar with above-mentioned embodiment, integrated compressor unit can dynamically be cut Change, use or enable the operator scheme of programming to use with the scope according to environmental condition with preset reference condition or condition or not Use the booster compression level of integral compressor.

The embodiment of compressibility 100,200 is not limited to only have single booster compressor 105 and compresses with single benchmark The system of machine 109.In some embodiments of compressibility, it is likely to be of the multiple benchmark or supercharging pressure used in systems Contracting machine or there is integrated benchmark or the booster compressor of multiple grades.As described in the embodiment at compressibility 300 , baseline compressor can include one or several level of compression.As by shown in the illustrative embodiments of Fig. 2, base pressure Contracting machine is it is so structured that have the level of the predetermined number needed for the outlet in desired pressure arrival pipeline 110.

In some embodiments, in order to reduce the size of compressor or compared to using lesser amt, more greatly or more The system of strong compressor increases efficiency, it is possible to use multiple baseline compressor 109,309,311,313.In alternative embodiment In, this system can utilize multiple baseline compressor, and wherein less compression machine is probably infeasible or unpractiaca.System 300 The quantity of the quantity of middle baseline compressor or the level of baseline compressor can be according to LNG, LPG or be integrated with compressibility 300 The requirement of other gas system changes with use.

In the alternative embodiment of compressibility, multiple baseline compressor 109,309,311,313 are not limited to the most each other Arranged in series is to increase entire pressurisation ability or the efficiency of compressibility.In some alternative embodiment, plural number one or Multiple baseline compressor 109,309,311,313 can be arranged in parallel with multiple second baseline compressor 408,409,411,413.

As described in figure 3, via pipeline 107 enter gas can enter multiple first baseline compressor 109, 309,311,313 and/or enter the baseline compressor 408,409,411,413 of multiple second parallel connection via pipeline 407.Entrance is many Individual first baseline compressor 109,309,311,313 is permissible with the gas of multiple second baseline compressor 408,409,411,413 By one or more compressor compresses until entering the pressure of gas of multiple second baseline compressor first in pipeline 110 Second row outlet in outlet or pipeline 410 is discharged with desired goal pressure.As retouched in the exemplary embodiment Stating, the compressed gas in pipeline 110 and pipeline 410 can be in conjunction with to form single gas stream in pipeline 420, and it has place Integrated in the desired pressure requiring pressure of user and this gas system or use this compressibility 400.It is flowed into pipeline Then these gases combined in pipeline 110,410 in 420 can be transported under LPG, LNG or other gas system One downstream procedures.

Along with the compressibility being integrated in LNG, LPG or other gas system becomes more complicated or includes that other sets Standby with layout, therefore can utilize other operator scheme.Such as, in some embodiments, the benchmark in compressibility 400 Under the conditions of the first operator scheme can not utilize multiple first baseline compressor 109,309,311,313 and multiple second bases simultaneously Quasi-compressor 408,409,411,413.Alternatively, operator scheme can select the multiple baseline compressor of one of which not select another The quantity enabling compressor in one group, or the group of the compressor increasing each series dynamically as needed is to compensate environment bar Part and the change in compression work load.

In the alternative embodiment of compressibility 400, being not all of compressor can use always.At an example In, the first operator scheme may only use multiple first baseline compressor 109,309,311,313.In this second mode of operation, When the environmental condition of system 400 arrives default or pre-programmed values or is limiting value or the parameter model of one or more environmental conditions When enclosing interior, system 400 can start multiple second baseline compressor.Subsequently, in some embodiments, when meeting predetermined group When environmental condition or variable value, it is possible to use the 3rd operator scheme, wherein booster compressor, multiple first compressor 109,309, 311,313 can enable individually or in conjunction with multiple second booster compressors 408,409,411,413.

In further embodiment, will not produce to enable first, second or the 3rd different group article of operator scheme The 4th operator scheme can be enabled under part.Such as, in this alternative embodiment, when enabling four operator schemes, Ke Yilian Booster compressor is enabled with multiple first baseline compressor.Alternatively, in other embodiments, this operator scheme can enable Baseline compressor and multiple second baseline compressor.Additionally, in other embodiment of above-mentioned compressibility, compressor assembly The 500 one or more booster compressors 105,505 that can include plural number as shown in Figure 5.Can be according to the operation enabled Pattern simultaneously uses booster compressor, or the operation mould that the quantity of the booster compressor used can select according to user Formula or be increased or decreased due to environmental condition.

In addition to the compressor being used in different operation modes, all it is arranged in parallel as shown in Figure 5 when existing Compressor time, one or more compressor faults, safeguard lost efficacy or unavailable time, it is possible to use plural number one or many Individual baseline compressor or multiple booster compressor 105,505 are to provide standby.In some embodiments, it is also possible to alternately make By booster compressor or baseline compressor with balance number of operating hours for each compressor in certain operational modes.

As shown in Figure 5, some embodiments of system 500 can include heat exchanger 511, circulation loop 501 with via Pipeline is connected to valve or the door 523 of baseline compressor 501.The parts in booster compressor 501 path in parallel can with supercharging pressure Contracting machine 105, heat exchanger 111, valve or door 123 and the same or like mode of circulation loop 201 operate.Such as, in view of heat exchanger 11 receive from the compressed gas of booster compressor 105, unless door 123 is opened otherwise, it enters circulation loop 201, unless valve or Door 523 is in open mode, and the gas otherwise entering booster compressor 505 can be through heat exchanger 511 and via circulation Loop 501 returns to booster compressor 505.

Referring now to Fig. 1 a-Fig. 5, the embodiment being used for utilizing the method for the embodiment compressed gas of said system can To include the step providing the bypass of one or more booster compressor, booster compressor with one or more baseline compressor.Side The embodiment of method can include air-flow by pipeline, and the most uncompressed gas or compressed gas receive gas compression system Step in system.In certain methods, the sensor that can be such as arranged in pipeline by use performs to measure in pipeline The step of environmental condition.As the most described above, gas compression system can have the value of preprogramming or the scope of value. When measuring environmental condition present in pipeline, ambient condition data can be transferred to calculating system by sensor, collecting To environmental condition compare with preprogramming or default environmental condition.

In some embodiments of method, collect with compare description gas compression system environmental condition data with After, the gas compression system or the calculating system that are connected to there in certain methods can perform to select to preset maybe can compile further The step of journey operator scheme.

The step selecting operator scheme can include selecting operator scheme from multiple operator schemes.At some embodiments In, selection can be automatically carried out based on limiting the interior operating condition of compressibility self with the value of environmental condition or the scope of value The step of operator scheme.In alternative embodiment, can manually be performed by the user of compressibility to select operation mould The step of formula.Such as, user can electronically or be remotely coupled to compressibility remotely or network can enter calculating Operator scheme is selected at system.

In the example of illustrative embodiments, can realize selecting behaviour by selecting the first operator scheme or the second operation The step of operation mode.In some embodiments, when selecting the first operator scheme, can be by the gas stream by the system of entrance Guide and proceed compressibility by booster compressor bypass.Can be by being provided and be arranged in supercharging pressure by compressibility One or more valves in contracting machine bypass duct and/or booster compressor loop perform the guiding of gas.Alternatively, can pass through The entrance that the gas stream entering compressibility is directed to booster compressor continues to select the step of the second operator scheme, Qi Zhongzeng Pressure compressor is to enable and exercisable, the gas compression of entrance is become intermediate compression gas, with intermediate-pressure discharge gas And intermediate compression gas is transported to the baseline compressor in booster compressor downstream to compress further.

Include from booster compressor for gas being compressed to further the embodiment of the method for expectation final pressure Or the gas of booster compressor bypass discharge leg is transported to one or more baseline compressor to be received by baseline compressor entrance Gas.In some embodiments, can by gas that compression receives, by gas pressurized to predetermined or require in advance pressure with And by the desired pressure of the user of system from system one or more baseline compressor discharge gas make benchmark compress Machine proceeds.

In alternative embodiment, including parallel running, receive the gas bypassed from booster compressor or booster compressor One or more baseline compressor of body, the method is additionally may included in preset or requires that pressure discharges from base pressure in advance After the step of the gas of contracting machine, in conjunction with the step of the gas-pressurized from each baseline compressor.

Provide following software emulation example for illustrative purposes.This emulation is intended to infinite and for entering one Step is explained and assists illustrate benefit and achieve energy saving when utilizing one or more element of above-mentioned embodiment:

The single compressibility of table 1-

Table 2 booster compressor systems

The emulation data presented in by table 1 above and table 2 show, booster compressor systems provides and exceedes at table The significant energy saving of the single compressibility of emulation in 1.Only can need to grasp under more added with pressure condition by introducing Make the booster compressor dynamically enabling and disabling, in table 2 emulation booster compressor systems baseline compressor can less, More energy-conservation and be included in the emulation of table 1 level of low amount of the compressor that the single compressibility arranged needs.? Compressor in single stage compress system can be bigger, more complicated, has increased number of compression stage and thus needs more multipotency Amount operation, because the single compressibility described in the emulation of table 1 not only should process relatively low to allow single compressor Relatively cold compression gas at temperature (such as-90 DEG C with-110 DEG C), but also process 20 DEG C enter of having as shown in example The mode of the relatively warm gas of mouth temperature is designed.By wider opereating specification, single compressor assembly may require more High total coupled power, but the booster compression system with the result of table 2 can lean on booster compressor with will warmer gas Body (the most such as 20 DEG C) is compressed to the intermediate pressure final compression followed by baseline compressor.

Although optionally implementing to use booster compressor to can see that with the temperature conditions of the operator scheme of benchmark to couple The increase of power, to provide the total compression of q.s in some embodiments, but as shown in table 2, need not enforcement Under the operator scheme of booster compressor, it is possible to achieve the notable saving of the amount of the coupled power of use.Such as institute in superincumbent table 2 Showing, by using the baseline compressor of more Energy Efficient, the booster compressor systems of table 2 can be at-90 DEG C and-110 Correspondingly the coupled power being used for operating non pressurized operator scheme is reduced 285kW and 464kW at a temperature of DEG C.Baseline compressor The reduction of coupled power between 18% to 35%.But, according to the structure of particular implementation as above, it is contemplated that pressure The saving of the coupled power of contracting machine can be reduction by 35 50%, 50-65%, 65-85% or 85-100%.

Although describing the disclosure already in connection with the particular implementation summarized above, for those of skill in the art For it is evident that multiple alternative, revise and deformation is apparent.Therefore, being preferable to carry out of the disclosure as set forth above Mode is intended to descriptively rather than restrictive.Without departing from such as the spirit by the present invention required by claim below May be many modifications with in the case of scope.This claim provides the coverage of the present invention and should not necessarily be limited by this In provide particular instance.

Claims

1. a gas compression system, comprising:

Booster compressor；

Booster compressor bypasses；

It is connected to the pipeline of described booster compressor and the bypass of described booster compressor, wherein, based on described gas compression system Present in the measured value of environmental condition, gas stream is optionally guided by described booster compressor.

Gas compression system the most according to claim 1, also includes:

It is connected to the baseline compressor of described pipeline, if the measured value of environmental condition is beyond the scope of a value or value, then Described baseline compressor receives the compressed gas from described booster compressor.

Gas compression system the most according to claim 1, wherein, described pipeline also includes sensor, wherein said sensing Device is measured the environmental condition in described pipeline and the data of environmental condition is transferred to calculating system.

Gas compression system the most according to claim 1, wherein, the environmental condition of described sensor measurement selects free gas Volume, the group of temperature composition of temperature and gas compression system of gas.

Gas compression system the most according to claim 1, also includes entrance and the discharge being connected to described booster compressor The circulation loop of mouth.

Gas compression system the most according to claim 5, wherein, described circulation loop makes to leave the centre of described outlet Compressed gas returns to the entrance of described booster compressor.

System the most according to claim 1, wherein, the measured value of environmental condition present in the described gas compression system Time beyond the scope of a value or value, gas stream is optionally directed to by described booster compressor by described gas compression system Road.

Gas compression system the most according to claim 7, wherein, when described gas compression system by gas stream optionally When being directed to the bypass of described booster compressor, described booster compressor enters low power state.

System the most according to claim 2, including by described booster compressor, described baseline compressor and described supercharging pressure Contracting machine bypasses the integrated compressor unit being incorporated in the single compressor unit with multiple grades, wherein said booster compression Machine is the booster stage of integrated compressor unit, and the bypass of described booster compressor prevents gas from entering described booster stage Bypass.

System the most according to claim 2, wherein, described baseline compressor be with series configuration be connected to each other multiple Baseline compressor.

11. systems according to claim 10, wherein, are connected to multiple second baseline compressor that series configuration connects Described pipeline and in parallel with the plurality of baseline compressor.

12. 1 kinds of methods for compressed gas, the method comprises the following steps:

By conduit acceptor gas stream；

The environmental condition existed in measuring described pipeline；

Operator scheme is selected from the first operator scheme with the second operator scheme, wherein when the measurement of environmental condition according to measuring process The first operator scheme is selected when value is in the range of a value or value, and when the measured value of environmental condition is at described value or the model of value Described second operator scheme is selected time beyond enclosing；

Enable described second operator scheme to make to be directed into the supercharging being connected to described pipeline from the gas stream of described pipeline Compressor.

13. methods according to claim 12, further comprise the steps of:

It is intermediate compression gas by described booster compressor by gas compression；

Described intermediate compression gas is transported to baseline compressor；And

By described baseline compressor by described intermediate compression gas further boil down to compressed gas.

14. methods according to claim 12, wherein, are held by the one or more sensors being arranged in described pipeline Row measures the step of environmental condition.

15. methods according to claim 12, wherein, described environmental condition is the volume of gas, the temperature of gas or institute State the temperature in pipeline or the component of the gas in described pipeline.

16. methods according to claim 12, further comprise the steps of:

Enable described first operator scheme；

Described gas stream is directed to be connected to the booster compressor bypass of described baseline compressor from described pipeline；And

By described baseline compressor, gas compression is become compressed gas.

17. methods according to claim 16, further comprise the steps of:

When enabling described first operator scheme, the intermediate compression gas leaving the outlet of described booster compressor is transported to In the circulation loop that the entrance of the outlet of booster compressor Yu booster compressor is linked together；

Described intermediate compression gas is transported to from described circulation loop the entrance of described booster compressor.

18. methods according to claim 16, further comprise the steps of:

Described booster compressor is switched to low power state.

19. methods according to claim 13, wherein, described booster compressor and baseline compressor are integrated compressors Unit, wherein said booster compressor is the booster stage of described integrated compressor unit.

20. methods according to claim 13, wherein, by being connected to multiple base pressures of described pipeline with series configuration Contracting machine performs the step of described further compression.

21. methods according to claim 13, wherein, are compressed by multiple first benchmark connected with the first series configuration Machine and multiple second baseline compressor connected with the second series configuration perform the step of described further compression, and described Multiple first baseline compressor are constructively in parallel with multiple described second baseline compressor.