CN104533531B - Natural gas line pressure energy recovery system, pressure energy retracting device - Google Patents
Natural gas line pressure energy recovery system, pressure energy retracting device Download PDFInfo
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- CN104533531B CN104533531B CN201510023991.XA CN201510023991A CN104533531B CN 104533531 B CN104533531 B CN 104533531B CN 201510023991 A CN201510023991 A CN 201510023991A CN 104533531 B CN104533531 B CN 104533531B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C1/00—Rotary-piston machines or engines
- F01C1/08—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
- F01C1/10—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/06—Heating; Cooling; Heat insulation
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
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Abstract
The invention discloses a kind of natural gas line pressure energy recovery system, pressure energy retracting device.The natural gas line pressure energy recovery system includes：Pressure regulating metering device；Branch road is reclaimed with least one pressure energy, each pressure energy recovery branch road, which includes at least primary rotor expanding machine, every grade of rotor expansion machine, to be included：Housing, housing is interior to have the first accommodating chamber, air inlet and gas outlet；Outer rotor, has the second accommodating chamber in outer rotor, and the wall of the second accommodating chamber is provided with N number of groove, and the wall of outer rotor and the first accommodating chamber limits inlet chamber and outlet chamber；And internal rotor, 1 tooth of N, the shape of tooth and the shape adaptation of groove are provided with interval on internal rotor, and internal rotor and outer rotor be not coaxial, and the rotating ratio of internal rotor and outer rotor is corresponding with the ratio between the number of tooth and groove.The natural gas line pressure energy recovery system has the advantages that strong expansion, applied widely, efficiency high, easy care.
Description
Technical field
The present invention relates to natural gas line pressure energy recovery system, further relates to the natural gas line pressure energy recovery system
Pressure energy retracting device.
Background technology
Gas distributing system is the main transportation means in natural gas resource application process, high-pressure natural gas conveying route with
Contain huge pressure energy between low pressure natural gas branch line, traditional pressure regulating valve device can not realize energy regenerating, cause big
The waste of amount.Therefore, how to realize that the recovery of natural gas pipe network pressure energy has evoked the research enthusiasm of many people, to being at present
Only, there are many pressure energy of natural gas and utilized technique and device.
But it is such as narrow to pressure difference section range of choice due to existing, expansion efficiency is low, and operation maintenance cost is high, scale
The problems such as single, cause engineering project benefit ratio poor, do not possess the progress scale in gas distributing system voltage regulating stations at different levels and push away
Wide condition.
Traditionally, natural gas pipe network pressure energy recovery is to utilize expanding machine, and the enthalpy of the fluid in motion is converted into machinery
The process of decompression and can be completed.Due to being accompanied by violent cooling in pressure reduction, so while mechanical energy is reclaimed also
Substantial amounts of cold energy can be obtained.Therefore, expanding machine is to complete setting for energy conversion core the most in natural gas pipe network pressure energy recovery
Standby, its performance directly determines the quality of pressure energy recovery process.At present in natural gas pipe network pressure energy recovery process
The expanding machine applied for a patent is mainly turbo-expander and screw expander.
Turbine is velocity profile expanding machine, and gas obtains very high flowing velocity by nozzle, and the kinetic energy of air-flow is changed
Exported for mechanical energy and by main shaft and done work, the process is continuously converted to the interior energy of gas the kinetic energy of air-flow, completes drop
Pressure and the process of cooling.
The structure and operation principle of turbine determine that it is applied to big flow, and high inlet pressure, pressure is higher, at nozzle
The kinetic energy of acquisition is bigger, and expansion efficiency is secure.Turbine adapts to the limited in one's ability of natural pressure fluctuation operating mode, and by expanding
Air-flow is mingled with liquid phenomenon caused by low temperature caused by process, easily impeller is caused to damage；In addition, the rotating speed of turbo-expander
It is very high, usually up to ten thousand turns per minute, if to reclaim shaft work band slewing, such as band electrical power generators, it is necessary to be equipped with and adjust
Fast equipment, some mechanical work(can be lost；
Screw rod is positive-displacement expansion engine, and air-flow is being coordinated to rotate through between screw rotor or between screw rotor and gear
The change of inter-tooth volume in journey, flows vertically, reaches the purpose of expansion decompression.
Screw rotor is big with complicated three-dimensional structure, difficulty of processing.In addition, machine finish is not high to cause volume
Efficiency is low, so as to cause isentropic efficiency low.Screw expander typically requires the pressure of inlet fluid medium no more than
3.0MPa.g, inlet pressure is too big, and inlet and outlet pressure Cha Guo big city causes screw rod to produce larger radial load, produces not
The mechanically deform of permission, it can not just coordinate to rotate between screw rotor.
It is costly that the accessory system of screw expander also results in its operation maintenance more.
To sum up, the recovery of natural gas line pressure energy lacks a kind of applied widely, and operation cost is low, the expansion of efficiency high
Machine, so as to cause gas distributing system pressure difference recycling engineering project can not obtain good benefit, causing at present can not be extensive
The present situation of promotion and implementation.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention carries
Go out a kind of natural gas line pressure energy recovery system, the natural gas line pressure energy recovery system can significantly increase energy
The efficiency of recovery.
The present invention also proposes a kind of pressure energy retracting device, and the pressure energy retracting device can significantly increase energy and return
The efficiency of receipts.
The present invention reintroduces a kind of rotor expansion machine, the rotor expansion machine operating mode wide adaptation range, and can be significantly
Improve the efficiency of energy regenerating.
The natural gas line pressure energy recovery system of embodiment includes according to a first aspect of the present invention：Pressure regulating metering device；
Branch road is reclaimed with least one pressure energy, the pressure energy recovery branch road and the pressure regulating metering device are in parallel, each pressure
Power, which can reclaim branch road, includes pressure energy retracting device, the pressure energy retracting device include at least primary rotor expanding machine and with institute
The first cold energy recovery heat-exchanger rig of rotor expansion machine series connection is stated, the rotor expansion machine includes：Housing, have in the housing
First accommodating chamber, the housing are provided with the air inlet connected with first accommodating chamber and gas outlet；Outer rotor, described outer turn
There is the second accommodating chamber in son, the wall of second accommodating chamber is provided with N number of groove, and the wall of each groove, which is provided with, to be led to
Hole, wherein the outer rotor is rotatably provided in first accommodating chamber, the outer rotor and the wall of first accommodating chamber
The inlet chamber connected with the air inlet and the outlet chamber connected with the gas outlet are limited, the volume of the outlet chamber is big
In the volume of the inlet chamber；And internal rotor, N-1 tooth, the shape of the tooth and institute are provided with interval on the internal rotor
State the shape adaptation of groove, wherein the internal rotor is rotatably provided in second accommodating chamber, wherein the internal rotor and
The outer rotor is not coaxial, the ratio between the rotating ratio of the internal rotor and the outer rotor and number of the tooth and the groove phase
It is corresponding.
Natural gas line pressure energy recovery system according to embodiments of the present invention have expansion it is strong, it is applied widely, effect
The advantages of rate height, strong adaptability, cost are low, easy care.
The pressure energy retracting device of embodiment includes according to a second aspect of the present invention：First cold energy reclaims heat-exchanger rig；With
At least primary rotor expanding machine, the cold energy recovery heat-exchanger rig are connected to the downstream of the rotor expansion machine, and the rotor is swollen
Swollen machine includes：Housing, the housing is interior to have the first accommodating chamber, and the housing is provided with to enter with what first accommodating chamber connected
Gas port and gas outlet, wherein the gas outlet is connected with the import of first cold energy recovery heat-exchanger rig；Outer rotor, it is described outer
There is the second accommodating chamber in rotor, the wall of second accommodating chamber is provided with N number of groove, and the wall of each groove, which is provided with, to be led to
Hole, wherein the outer rotor is rotatably provided in first accommodating chamber, the outer rotor and the wall of first accommodating chamber
The inlet chamber connected with the air inlet and the outlet chamber connected with the gas outlet are limited, the volume of the outlet chamber is big
In the volume of the inlet chamber；And internal rotor, N-1 tooth, the shape of the tooth and institute are provided with interval on the internal rotor
State the shape adaptation of groove, wherein the internal rotor is rotatably provided in second accommodating chamber, wherein the internal rotor and
The outer rotor is not coaxial, the ratio between the rotating ratio of the internal rotor and the outer rotor and number of the tooth and the groove phase
It is corresponding.
The rotor expansion machine of embodiment includes according to a third aspect of the present invention：Housing, the housing is interior to have first to accommodate
Chamber, the housing are provided with the air inlet connected with first accommodating chamber and gas outlet；Outer rotor, have in the outer rotor
Second accommodating chamber, the wall of second accommodating chamber are provided with N number of groove, and the wall of each groove is provided with through hole, wherein institute
State outer rotor to be rotatably provided in first accommodating chamber, the wall of the outer rotor and first accommodating chamber limits and institute
The outlet chamber stated the inlet chamber of air inlet connection and connected with the gas outlet, the volume of the outlet chamber are more than the air inlet
The volume of chamber；And internal rotor, N-1 tooth, the shape of the tooth and the shape of the groove are provided with the internal rotor at interval
Shape is adapted to, wherein the internal rotor is rotatably provided in second accommodating chamber, wherein the internal rotor and the outer rotor
Not coaxial, the rotating ratio of the internal rotor and the outer rotor is corresponding with the ratio between the number of the tooth and the groove.
Brief description of the drawings
Fig. 1 is the structural representation of natural gas line pressure energy recovery system according to embodiments of the present invention；
Fig. 2 is the structure of the pressure energy recovery branch road of natural gas line pressure energy recovery system according to embodiments of the present invention
Schematic diagram；
Fig. 3 is the structural representation of pressure energy retracting device according to an embodiment of the invention；
Fig. 4 is the structural representation of pressure energy retracting device according to another embodiment of the invention；
Fig. 5 is the structural representation of rotor expansion machine according to embodiments of the present invention；
Fig. 6 A- Fig. 6 L are the use state figure according to the rotor expansion machine of the embodiment of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings natural gas line pressure energy recovery system 1 according to embodiments of the present invention is described.According to this hair
The natural gas line pressure energy recovery system 1 of bright embodiment includes pressure regulating metering device 20 and at least one pressure energy recovery branch
Road, as shown in fig. 1.
Pressure energy reclaims branch road and pressure regulating metering device 20 can be in parallel, and each pressure energy recovery branch road returns including pressure energy
Receiving apparatus 10.According to one embodiment of present invention, pressure energy retracting device 10 (can incite somebody to action including at least primary rotor expanding machine
It is described in detail below) and the cold energy corresponding with rotor expansion machine recovery heat-exchanger rig.
Below will be according to embodiments of the present invention to describe using the first rotor expanding machine 101 shown in Fig. 3,4 as example
The construction of rotor expansion machine.As shown in Fig. 5-Fig. 6 L, rotor expansion machine 101 according to embodiments of the present invention can include housing
1011st, outer rotor 1012 and internal rotor 1013.There is the first accommodating chamber 10111, housing 1011 is provided with the in housing 1011
The air inlet 10112 of one accommodating chamber 10111 connection and gas outlet 10113, the wherein cold energy of gas outlet 10113 and first recovery heat exchange
The import of device 102 is connected.
There is the second accommodating chamber 10121 in outer rotor 1012, the wall of the second accommodating chamber 10121 is provided with N number of groove
10122, the wall of each groove 10122 is provided with through hole 10123.Wherein, outer rotor 1012 is rotatably provided in the first accommodating chamber
In 10111, outer rotor 1012 and the wall of the first accommodating chamber 10111 limit the inlet chamber 10124 connected with air inlet 10112 with
And the outlet chamber 10125 connected with gas outlet 10113, the volume of outlet chamber 10125 are more than the volume of inlet chamber 10124.
It is provided with N-1 tooth 10131 on internal rotor 1013 at interval, wherein N is the integer more than 2, the shape of tooth 10131
With the shape adaptation of groove 10122.Wherein, internal rotor 1013 is rotatably provided in the second accommodating chamber 10121.According to the present invention
One embodiment, internal rotor 1013 and outer rotor 1012 be not coaxial, the rotating ratio and tooth of internal rotor 1013 and outer rotor 1012
10131 and groove 10122 the ratio between number it is corresponding, as shown in Figure 5.
Specifically, high-pressure natural gas is entered in the first accommodating chamber 10111 from the air inlet 10112 of housing 1011, i.e.,
Enter in rotor expansion machine, and promote outer rotor 1012 and internal rotor 1013 to rotate.Due to outer rotor 1012 and internal rotor
1013 is coaxial, and the rotating speed of the rotating speed of outer rotor 1012 and internal rotor 1013 is inconsistent, therefore during rotation, it is interior
The volume of the cavity 10132 formed between the tooth 10131 of rotor 1013 and the groove 10122 of outer rotor 1012 gradually increases, mistake
Cross to outlet chamber 10125 and couple, reach the purpose of expansion decompression (as shown in Fig. 6 A- Fig. 6 L).In natural gas expansion process,
The pressure energy of natural gas passes through the external output mechanical energy of the axle being connected with internal rotor 1013.According to one embodiment of present invention,
The expansion ratio of rotor expansion machine is determined by the volumetric ratio of inlet chamber 10124 and outlet chamber 10125.
Rotor expansion machine according to embodiments of the present invention has the advantages of expansion is strong, applied widely, and existing swollen
Swollen machine is compared to the expansion ratio section that can utilize wider range.
Advantageously, can out of, gas distributing system contains the maximum 10.0MPa.g-0.4MPa.g of pressure energy pressure range
To adapt to the various natural gas pressure regulating machines in the section by being designed to one-level or multistage (such as three-level) rotor expansion machine
System.According to one embodiment of present invention, the multi-stage rotor expanding machine can be with coaxially connected, and the structure of such whole device is simple
It is compact, small volume.
Rotor expansion machine according to embodiments of the present invention also has the advantages of expansion efficiency is high.For example, in 200kW work(
Below rate, the efficiency of rotor expansion machine is between 75%~85%, and more than 200kW power, the efficiency of rotor expansion machine exists
More than 85%.
Rotor expansion machine according to embodiments of the present invention is adapted to the inlet pressure and flow of change, when inlet pressure and
During flowed fluctuation 20% or so, the expansion efficiency of rotor expansion machine may remain in more than 70%.Moreover, implemented according to the present invention
The air inlet 10112 of the rotor expansion machine of example is adapted to the fluid media (medium)s such as gas, liquid and gas-liquid mixture.
The rotating speed of rotor expansion machine according to embodiments of the present invention can be high or low, can be according to relevant speciality technical staff
It is required that being designed, output power frequency electric can be directly connected with generator coaxle without speed changer, reduces mechanical work loss, energy
Significantly increase generating efficiency.
Moreover, rotor expansion machine according to embodiments of the present invention also has the advantages of simple in construction, cost is low, easy care.
Outer rotor 1012 and internal rotor 1013 are two-dimensional structure, and processing cost is low, need not between outer rotor 1012 and internal rotor 1013
Oil lubrication, the 1013 stocky impact resistance of outer rotor 1012 and internal rotor, few easy workout part.Rotor expansion machine can be made series standardized
Component, modular manufacturing.
Therefore, rotor expansion machine according to embodiments of the present invention have expansion is strong, applied widely, expansion efficiency is high,
Strong adaptability, the advantages that simple in construction, cost is low, easy care.
Natural gas line pressure energy recovery system 1 according to embodiments of the present invention have expansion it is strong, it is applied widely, effect
The advantages that rate height, strong adaptability, cost are low, easy care.
As shown in figure 1, pressure regulation meter is included according to the natural gas line pressure energy recovery system 1 of some embodiments of the present invention
Measure device 20, at least one pressure energy recovery branch road.According to one embodiment of present invention, the system 1 may further include
Filter 40 and plus smelly system 50.It should be noted that pressure regulating metering device, filter 40 and add smelly system 50 can be
The intrinsic facility or equipment at natural gas pressure regulating station or the equipment being provided separately.
As shown in fig. 1, each pressure energy recovery branch road can include the first regulating valve 301, the flowmeter being sequentially connected in series
302 and pressure energy retracting device 10.As shown in Figure 2, pressure energy recovery branch road may further include reclaims with pressure energy
Second regulating valve 303 of the series connection of device 10, pressure-regulating valve 304.Alternatively, pressure energy recovery branch road may further include
Bypass regulator 305, the bypass regulator 305 and the second regulating valve 303, pressure energy retracting device 10 and the pressure connected
Regulating valve 304 is connected in parallel.
The outlet of filter 40 and the import of pressure regulating metering device 20 and the first regulation of each pressure energy recovery branch road
The import of valve 301 is connected, and adds the import of smelly system 50 and the outlet of pressure regulating metering device 20 and each pressure energy recovery branch road
Pressure-regulating valve 304 outlet with bypass regulator 305 outlet be connected.
That is, import and the outlet phase of filter 40 of the first regulating valve 301 of each pressure energy recovery branch road
Even, the import of flowmeter 302 is connected with the outlet of the first regulating valve 301.The import of second regulating valve 303 and flowmeter 302
Outlet is connected, and the import of pressure energy retracting device 10 is connected with the outlet of the second regulating valve 303.
The import of pressure energy retracting device 10 is connected with the outlet of the second regulating valve 303, and pressure energy retracting device 10 goes out
Mouth is connected with the import of pressure-regulating valve 304.With adding the import of smelly system 50 to be connected, bypass is adjusted for the outlet of pressure-regulating valve 304
The import of pressure device 305 is connected with the outlet of flowmeter 302, the outlet of bypass regulator 305 and the import for adding smelly system 50
It is connected.
Specifically, pressure regulating metering device 20, filter 40 and add smelly system 50 can be known, therefore no longer detailed
Carefully describe.
Each pressure energy recovery branch road is in parallel with pressure regulating metering device 20, to recycle after being shunted to natural gas
The pressure energy of natural gas is generated electricity.The quantity of pressure energy recovery branch road can be carried out individually according to door station flowed fluctuation rule
Design.
The import of first regulating valve 301 of each pressure energy recovery branch road is gone out by preceding header 306 and filter 40
Mouth is connected.Preceding header 306 distributes at least one tributary in certain time period with regime flow, and a tributary is at one
Flowed in pressure energy recovery branch road.All tributaries that preceding header 306 distributes are parallel running, and the flow in one of tributary takes
The valley of flowed fluctuation in voltage regulating station, the flow in remaining tributary take steady as much as possible according to the period divisions flow rate zone of fluctuation
Fix time most long flow rate zone, to reduce the quantity of shunting means and equipment investment.
First regulating valve 301 can control the flow in tributary, and the first regulating valve 301 is used to split door station total flow, overflowed
Part be transferred to other tributaries in parallel or pressure regulating metering device 20 to complete to be depressured.Flowmeter 302 is used to show tributary
Flow.Second regulating valve 303 can more accurately be adjusted to the flow in tributary, to be pressure energy retracting device 10
Accurate fluid flow is provided, so as to ensure the stability of mechanical energy and cold energy output.
The pressure of the gas vent of pressure energy retracting device 10 would generally be designed as being higher by than the pressure of outbound downstream pipe network
5%~10%, it so can be that pressure energy retracting device 10 leaves certain pressure oscillation section, ensure pressure energy retracting device
10 air-flows it is unimpeded.Therefore, pressure energy retracting device 10 can connect a pressure-regulating valve 304, pressure-regulating valve 304 below
For adjusting the pressure differential between the outlet of pressure energy retracting device 10 and outbound pipe network gas, ensure expansion process stabilization and downstream
Outbound supply safety.
Flow and pressure when the bypass one side of regulator 305 is used for pressure energy 10 driving and parking of retracting device are adjusted, separately
On the one hand be also used for the second regulating valve 303 for ensure into pressure energy retracting device 10 gas pressure and flow stability and
The decompression of the flow of spilling.The tributary of each pressure energy recovery branch road is entered by rear header 307 to be added in smelly system 50.
The various possibility of pressure energy retracting device 10 according to embodiments of the present invention are described in detail below in conjunction with accompanying drawing
Detailed configuration.As shown in figure 3, in some examples of the present invention, pressure energy retracting device 10 includes the first rotor expanding machine
101 and first cold energy recovery heat-exchanger rig 1042.According to one embodiment of present invention, the first cold energy recovery heat-exchanger rig 1042
Including the first gas-liquid separator 104 and the first cold energy recovery heat exchanger 102.In addition, pressure energy retracting device 10 further can be with
Including the first preheating heat exchanger 103.Fig. 4 shows the pressure energy retracting device 10 ' including multi-stage rotor expanding machine, the pressure energy
Retracting device 10 ' can include the first preheating heat exchanger 103, the first rotor expanding machine 101 being serially connected, the second rotor
Expanding machine 105 and third trochanter expanding machine 107.According to one embodiment of present invention, 101, second turns of the first rotor expanding machine
Sub- expanding machine 105 and third trochanter expanding machine 107 can be with coaxial settings, as shown in Figure 4.The adjacent He of rotor expansion machine 101
Can be provided between 105 or 105 and 107 preheating heat exchanger or cold energy recovery heat-exchanger rig, as in Fig. 4 102 ' and
Shown in 106 '.
As shown in Fig. 5-Fig. 6 L, the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107
In each include housing 1011, outer rotor 1012 and internal rotor 1013.There is the first accommodating chamber 10111 in housing 1011,
Housing 1011 is provided with the air inlet 10112 connected with the first accommodating chamber 10111 and gas outlet 10113, wherein gas outlet 10113
Import with the first cold energy recovery heat exchanger 102 is connected.
There is the second accommodating chamber 10121 in outer rotor 1012, the wall of the second accommodating chamber 10121 is provided with N number of groove
10122, the wall of each groove 10122 is provided with through hole 10123.Wherein, outer rotor 1012 is rotatably provided in the first accommodating chamber
In 10111, outer rotor 1012 and the wall of the first accommodating chamber 10111 limit the inlet chamber 10124 connected with air inlet 10112 with
And the outlet chamber 10125 connected with gas outlet 10113, the volume of outlet chamber 10125 are more than the volume of inlet chamber 10124.
N-1 tooth 10131 (lobe), shape and the groove 10122 of tooth 10131 are provided with internal rotor 1013 at interval
Shape adaptation.Wherein, internal rotor 1013 is rotatably provided in the second accommodating chamber 10121.Wherein, internal rotor 1013 and outer rotor
1012 is coaxial, and the rotating ratio of internal rotor 1013 and outer rotor 1012 is relative with the ratio between the number of tooth 10131 and groove 10122
Should.
Advantageously, the first projection 10114 and the second projection 10115 are provided with the wall of the first accommodating chamber 10111 at interval,
Space between the wall and outer rotor 1012 of first accommodating chamber 10111 is divided into by the first projection 10114 and the second projection 10115
Inlet chamber 10124 and outlet chamber 10125.
Specifically, the outlet of the second regulating valve 304 is connected with the import of the first preheating heat exchanger 103, and the first preheating is changed
The outlet of hot device 103 is connected with the air inlet 10112 of the first rotor expanding machine 101.
The import of first gas-liquid separator 104 is connected with the gas outlet 10113 of the first rotor expanding machine 101, and the first gas
The outlet of liquid/gas separator 104 is connected with the import of the first cold energy recovery heat exchanger 102, as shown in Fig. 3,5.
In the pressure energy retracting device 10 ' with multi-stage rotor expanding machine, the rotor of the first rotor expanding machine 101 and second
Preheating heat exchanger can be arranged in series between expanding machine 105 or the second cold energy recovery heat-exchanger rig (uses the table of label 102 '
Show).Similarly, can be arranged in series between the second rotor expansion machine 105 and third trochanter expanding machine 107 preheating heat exchanger or
The cold energy of person second recovery heat-exchanger rig (being represented with label 106 ')
As shown in Figure 4, the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107 are same
Axle is connected.
The gas outlet 10113 of third trochanter expanding machine 107 is connected with the import of the first cold energy recovery heat exchanger 102.First
The outlet of cold energy recovery heat exchanger 102 is connected to pressure-regulating valve 304.
Natural gas with pressure is expanded in the first rotor expanding machine 101, the kinetic energy of itself is converted into mechanical energy, and lead to
The mechanical axis for crossing the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107 externally exports machinery
Can, and the potential energy increase of post-expansion gas molecule.Due to expansion process energy conservation, the above-mentioned energy potential externally exported is necessary
There is provided by reducing the kinetic energy of gas molecule, the reduction of gas molecule kinetic energy means that the temperature of gas can reduce, and this is also
Expansion process can produce the reason for a large amount of cold energy.
Also, the mechanical energy that gas molecule externally exports in expansion process is more, caused cold energy is more after expansion, and
The expansion efficiency of the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107 determines externally defeated
Go out mechanical energy number, also finally determine obtain cold energy number.Under equal exaggerated conditions, expansion efficiency is higher, gas
Output mechanical energy is more, and the cold energy of acquisition is more.Therefore, the first rotor expanding machine 101, the second rotor expansion machine 105 and the 3rd
The expansion efficiency of rotor expansion machine 107 is also an important factor for determining natural gas line pressure energy recovery Project Benefit.
The first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107 pass through with rotatably setting
The standby 60 external output mechanical energy of mechanical axis connection, for various applications, such as it can generate electricity, drive pump work, band dynamic pressure
Contracting machine work etc..
Cause to have in expansion process when the purification precision of voltage regulating station filtration, purification system is not high or gas water dew point is too high
When ice or gas hydrates solid, the first preheating heat exchanger 103, second preheating heat exchanger and the 3rd preheating heat exchanger
Natural gas is preheated by using thermals source such as the used heat in voltage regulating station or around voltage regulating station, solar energy, it is ensured that after gas expansion
Temperature improves expansion machinery and can exported more than 5 degrees Celsius.
When gas water dew point is sufficiently low, can come without preheating heat exchanger (such as preheating heat exchanger 103 etc.) to day
Right gas is preheated, and the recovery heat exchange of the second cold energy is set between the rotor expansion machine 105 of the first rotor expanding machine 101 and second
Device, the second cold energy is set to reclaim heat-exchanger rig between the second rotor expansion machine 105 and third trochanter expanding machine 107.
In other words, pressure energy retracting device 10 includes the first rotor expanding machine 101, the second gas-liquid separation being sequentially connected
Device, the second cold energy recovery heat exchanger, the second rotor expansion machine 105, the second gas-liquid separator, the second cold energy recovery heat exchanger, the
Triple-spool expanding machine 107, the first gas-liquid separator 104 and the first cold energy recovery heat exchanger 102.
That is, when gas water dew point is sufficiently low, the natural gas of normal temperature is set to be directly entered the first rotor expanding machine
101st, the second rotor expansion machine 105 and third trochanter expanding machine 107 are expanded, and at this moment can produce a large amount of cryogenic cold energies, low
Temperature can cause a part of heavy hydrocarbon component to separate out, and by gas-liquid separation, can reclaim the higher heavy hydrocarbon of these economic values.
At the same time, can also be by designing the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter
The expansion ratio of expanding machine 107 optionally separates out the heavy hydrocarbon component that some contents are higher in natural gas.
Cold energy recovery heat-exchanger rig is exchanged heat by some refrigerants and the natural gas after expansion, reclaims cold energy.Can be with
According to the contents level of the impurity such as natural gas reclaimed water, carbon dioxide, pass through the coordination of preheating heat exchanger and cold energy recovery heat exchanger
Coordinate, under the conditions of ensureing that process unit is nonclogging, the cold energy in output different temperatures section, for the cold energy demand of different grades
Use, such as prepare LNG, ice making, air-conditioning, freezer.
Second rotor expansion machine 105 is usually when the decompressional expansion ratio of voltage regulating station is between 4.0-8.5 and the first rotor
The mechanical coaxial of expanding machine 101 use, third trochanter expanding machine 107 be usually when voltage regulating station decompressional expansion ratio 8.5-21.5 it
Between when with the mechanical coaxial of 101 and second rotor expansion machine of the first rotor expanding machine 105 use.
For example, when pressure regulator is made as 10.0MPa.g-0.4Mpa.g, then it can be designed to 10.0MPa.g-4.0MPa.g's
The first rotor expanding machine 101,4.0MPa.g-1.26MPa.g the second rotor expansion machine 105 and 1.26MPa.g-0.4MPa.g's
Third trochanter expanding machine 107.The first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107 are same
Axis connection, that is, the centrality of energy output is ensure that, also improves energy delivery efficiency.
By setting the first preheating heat exchanger 103 before the first rotor expanding machine 101, in the second rotor expansion machine 105
Second preheating heat exchanger is set before and the 3rd preheating heat exchanger, Ke Yibao are set before third trochanter expanding machine 107
Demonstrate,prove the temperature of the natural gas after the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107 expand
More than 5 degrees Celsius, while improve the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107
Mechanical energy output.
Alternatively, by setting the second cold energy to reclaim heat-exchanger rig, in the second rotor after the first rotor expanding machine 101
The second cold energy is set to reclaim heat-exchanger rig and the first cold energy is set after third trochanter expanding machine 107 after expanding machine 105
Reclaim heat-exchanger rig, cold energy recovery heat-exchanger rig can be utilized reclaim every grade expand after natural gas cold energy, and according to being
It is no to there is heavy hydrocarbon component to separate out optionally using gas-liquid separator recovery heavy hydrocarbon.
Each in the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107 is to make
With rotation gear (outer rotor 1012 and internal rotor 1013), come treatment fluid pressure, volume in a manner of compact, pure rotation, valveless
The displacement device of change.
It should be noted that, although pressure energy retracting device according to embodiments of the present invention for convenience of explanation in Fig. 4
And three-level rotor expanding machine is shown, but those of ordinary skill in the art appreciate that and can answer features described above or scheme
Use in the multistage pressure energy retracting device such as two level, level Four, thus above-described embodiment simply for purposes of illustration and description,
And it is not construed as any restrictions to protection scope of the present invention.
Outer rotor 1012 and internal rotor 1013 are each rotated around the symmetry axis of oneself, but two eccentrically weighted shafts
Twisting and out-of-balance force can cancel out each other completely.In order to reach balance and be mutually matched, outer rotor 1012 and internal rotor 1013
Rotating speed and differ.
Advantageously, the ratio between the rotating ratio of internal rotor 1013 and outer rotor 1012 and number of tooth 10131 and groove 10122 phase
Deng.
The axle of each in the first rotor expanding machine 101, the second rotor expansion machine 105 and third trochanter expanding machine 107
Can be coaxially connected with rotary equipment 60.If rotary equipment 60 is generator, the first rotor expanding machine 101, second
The rotating speed of each in rotor expansion machine 105 and third trochanter expanding machine 107 can be wanted according to relevant speciality technical staff
Ask and be designed, the first rotor expanding machine 101, the second rotor expansion machine 105, third trochanter expanding machine 107 and generator can be with
Coaxially connected holding constant rotational speed, so as to directly export power frequency electric, mechanical loss is few, improves generating efficiency.
For the flowed fluctuation problem of generally existing in natural gas pressure regulating station, natural gas line according to embodiments of the present invention
Pressure energy recovery system 1, can be with step by the pressure energy retracting device 10 of the different size in parallel of design according to fluctuation pattern
Using the flow rate zone for falling different stable periods in voltage regulating station, the recovery to pressure energy in voltage regulating station is maximumlly realized, it is in parallel
Bypass regulator 305 can ensure safety and stability driving and parking and supply safety, there is general popularization in voltage regulating stations at different levels
Property.
Natural gas line pressure energy recovery system 1 according to embodiments of the present invention can export the energy of various different qualities
Amount.
For the flow of length stable period, its tributary is using the air inlet 10112 in rotor expansion machine and gas outlet 10113
Front and rear increase the first regulating valve 301, the mode of the second regulating valve 303 and pressure-regulating valve 304 ensure rotor from technique
The stable mechanical energy of expanding machine output high-quality and cold energy.
If the coaxial load of rotor expansion machine is generator, the rotating speed that can play rotor expansion machine is low, expansion effect
The high advantage of rate, efficient outputting stable frequency, voltage, the electricity of phase.Now, the temperature of cold energy and cold also maintain essentially in certain
Near one steady state value, the place higher to cold energy stability requirement can be supplied.
For stable period is short, frequently flow rate zone, tributary where it make full use of rotor expansion machine to adapt to ripple for fluctuation
The advantages of kinetic force is strong, low power efficiency is still higher, energy is exported without the equipment being strict with to energy hunting stability
Amount.If coaxial load can be water pump, compressor and blower fan.Coaxial load can be generator, and its electricity sent can power
Hot stove uses or is converted to direct current electric power storage.
For between the long flow rate zone with stable period between short stable period, tributary where it can be exported with ripple
Dynamic energy, the energy that auxiliary equipment exports stabilizing quality can also be increased by rear end.For example, rotor expansion machine is coaxial negative
Carry as generator, frequency converter or inverter can be increased in generator output end to ensure the quality to generate electricity.
When water content is sufficiently low in natural gas ensures that expansion process does not freeze, the swollen of rotor expansion machine can be given full play to
It is swollen than can modularization regulation, in import and expansion process allow liquid existing for advantage, can be expanded by optimization design
Separated out in journey, and by the higher heavy hydrocarbon of gas-liquid separator separates bid value, obtain income.
The equipment investment of natural gas line pressure energy recovery system 1 according to embodiments of the present invention is low, natural gas line pressure
The equipment such as pipeline valve instrument, rotary equipment 60, gas-liquid separator and cold energy recovery heat exchanger in power energy recovery system 1 are all
It is the energy, oil, chemical field conventional ripening device.The first rotor expanding machine 101, the second rotor expansion machine 105 and the 3rd turn
Sub- expanding machine 107 is two-dimensional structure, and processing and manufacturing cost is low.Moreover, the first rotor expanding machine 101, the second rotor expansion machine
105 and third trochanter expanding machine 107 it is low without oil lubrication, few easy workout part, operation cost.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumference " be based on orientation shown in the drawings or
Position relationship, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the invention, " multiple " are meant that at least two, such as two, three
It is individual etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate each other；Can be joined directly together, can also be indirectly connected by intermediary, can be with
It is connection or the interaction relationship of two elements of two element internals, is limited unless otherwise clear and definite.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature are directly over second feature or oblique upper, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (11)
- A kind of 1. natural gas line pressure energy recovery system, it is characterised in that including：Pressure regulating metering device；WithAt least one pressure energy reclaims branch road, and the pressure energy recovery branch road and the pressure regulating metering device are in parallel, each described Pressure energy recovery branch road includes pressure energy retracting device, the pressure energy retracting device including at least primary rotor expanding machine and with The first cold energy recovery heat-exchanger rig of the rotor expansion machine series connection, the rotor expansion machine include：Housing, the housing is interior to have the first accommodating chamber, and the housing is provided with the air inlet connected with first accommodating chamber And gas outlet；Outer rotor, the outer rotor is interior to have the second accommodating chamber, and the wall of second accommodating chamber is provided with N number of groove, Mei Gesuo The wall for stating groove is provided with through hole, wherein the outer rotor is rotatably provided in first accommodating chamber, the outer rotor with The wall of first accommodating chamber limits the inlet chamber connected with the air inlet and the outlet chamber connected with the gas outlet, The volume of the outlet chamber is more than the volume of the inlet chamber；WithInternal rotor, N-1 tooth, the shape of the tooth and the shape adaptation of the groove are provided with the internal rotor at interval, Wherein described internal rotor is rotatably provided in second accommodating chamber, wherein the internal rotor and the outer rotor be not coaxial, The rotating ratio of the internal rotor and the outer rotor is corresponding with the ratio between the number of the tooth and the groove, wherein,At least primary rotor expanding machine is multi-stage rotor expanding machine, and the multi-stage rotor expanding machine is coaxially disposed, described Multi-stage rotor expanding machine includes the first rotor expanding machine, the second rotor expansion machine and the third trochanter expansion being serially connected Machine, the first rotor expanding machine, the second rotor expansion machine and the coaxial setting of third trochanter expanding machine,First cold energy recovery heat-exchanger rig includes the first gas-liquid separator and the first cold energy recovery heat exchanger, described first turn The gas outlet of sub- expanding machine is connected with the import of first gas-liquid separator, and the pressure energy retracting device further comprises： First preheating heat exchanger, the outlet of first preheating heat exchanger are connected with the air inlet of the first rotor expanding machine；The second rotor expansion machine is to be expanded when the decompressional expansion ratio of voltage regulating station is between 4.0-8.5 with the first rotor Machine mechanical coaxial use, the third trochanter expanding machine be when the decompressional expansion ratio of voltage regulating station is between 8.5-21.5 with it is described The first rotor expanding machine and the second rotor expansion machine mechanical coaxial use.
- 2. natural gas line pressure energy recovery system according to claim 1, it is characterised in that further comprise：Filter, the outlet of the filter and the import of the pressure regulating metering device and each pressure energy recovery branch The air inlet on road is connected；WithAdd smelly system, outlet and each pressure energy recovery branch of described plus smelly system the import with the pressure regulating metering device The outlet on road is connected.
- 3. natural gas line pressure energy recovery system according to claim 2, it is characterised in that each pressure energy is returned Revenue and expenditure road further comprises：First regulating valve, the import of first regulating valve are connected with the outlet of the filter；WithFlowmeter, the flowmeter are used to measure the natural gas on pressure energy recovery branch road.
- 4. natural gas line pressure energy recovery system according to claim 3, it is characterised in that each pressure energy is returned Revenue and expenditure road further comprises the second regulating valve, and the import of second regulating valve is connected with the flowmeter outlet, described second The outlet of regulating valve is connected with the air inlet of the pressure energy retracting device.
- 5. natural gas line pressure energy recovery system according to claim 4, it is characterised in that each pressure energy is returned Revenue and expenditure road further comprises pressure-regulating valve, the import of the pressure-regulating valve and the outlet phase of the pressure energy retracting device Even, the outlet of the pressure-regulating valve is connected with described plus smelly system import.
- 6. natural gas line pressure energy recovery system according to claim 5, it is characterised in that each pressure energy is returned Revenue and expenditure road further comprises：Regulator is bypassed, the import of the bypass regulator is connected with the outlet of the flowmeter, institute The outlet for stating bypass regulator is connected with described plus smelly system import, so that the bypass regulator is adjusted with described second It is in parallel to save valve, the pressure energy retracting device and the pressure-regulating valve.
- 7. natural gas line pressure energy recovery system according to claim 1, it is characterised in that second rotor expansion It is connected with the second cold energy recovery heat-exchanger rig or the second preheating heat exchanger between machine and the third trochanter expanding machine, described the Two cold energy recovery heat-exchanger rig includes：Second gas-liquid separator, second gas-liquid separator are connected with the second rotor expansion machine；AndSecond cold energy reclaims heat exchanger, second cold energy recovery heat exchanger respectively with second gas-liquid separator and described the Triple-spool expanding machine is connected.
- 8. natural gas line pressure energy recovery system according to claim 1, it is characterised in that first accommodating chamber It is provided with that first is raised and second is raised on wall at interval, the described first raised and described second projection is by first accommodating chamber Wall and the outer rotor between space be divided into the inlet chamber and the outlet chamber.
- A kind of 9. pressure energy retracting device, it is characterised in that including：First cold energy reclaims heat-exchanger rig；WithAt least primary rotor expanding machine, cold energy recovery heat-exchanger rig are connected to the downstream of the rotor expansion machine, described turn Sub- expanding machine includes：Housing, the housing is interior to have the first accommodating chamber, and the housing is provided with the air inlet connected with first accommodating chamber And gas outlet, wherein the gas outlet is connected with the import of first cold energy recovery heat-exchanger rig；Outer rotor, the outer rotor is interior to have the second accommodating chamber, and the wall of second accommodating chamber is provided with N number of groove, Mei Gesuo The wall for stating groove is provided with through hole, wherein the outer rotor is rotatably provided in first accommodating chamber, the outer rotor with The wall of first accommodating chamber limits the inlet chamber connected with the air inlet and the outlet chamber connected with the gas outlet, The volume of the outlet chamber is more than the volume of the inlet chamber；WithInternal rotor, N-1 tooth, the shape of the tooth and the shape adaptation of the groove are provided with the internal rotor at interval, Wherein described internal rotor is rotatably provided in second accommodating chamber, wherein the internal rotor and the outer rotor be not coaxial, The rotating ratio of the internal rotor and the outer rotor is corresponding with the ratio between the number of the tooth and the groove, wherein,At least primary rotor expanding machine includes the first rotor expanding machine, the second rotor expansion machine and the being serially connected Triple-spool expanding machine, the first rotor expanding machine, the second rotor expansion machine and the third trochanter expanding machine is coaxial sets Put,First cold energy recovery heat-exchanger rig includes the first gas-liquid separator and the first cold energy recovery heat exchanger, described first turn The gas outlet of sub- expanding machine is connected with the import of first gas-liquid separator, and the pressure energy retracting device further comprises One preheating heat exchanger, the outlet of first preheating heat exchanger are connected with the air inlet of the first rotor expanding machine；The second rotor expansion machine is to be expanded when the decompressional expansion ratio of voltage regulating station is between 4.0-8.5 with the first rotor Machine mechanical coaxial use, the third trochanter expanding machine be when the decompressional expansion ratio of voltage regulating station is between 8.5-21.5 with it is described The first rotor expanding machine and the second rotor expansion machine mechanical coaxial use.
- 10. pressure energy retracting device according to claim 9, it is characterised in that the second rotor expansion machine and described The second cold energy recovery heat-exchanger rig or the second preheating heat exchanger are connected between third trochanter expanding machine, second cold energy returns Receiving heat-exchanger rig includes：Second gas-liquid separator, second gas-liquid separator are connected with the second rotor expansion machine；AndSecond cold energy reclaims heat exchanger, second cold energy recovery heat exchanger respectively with second gas-liquid separator and described the Triple-spool expanding machine is connected.
- 11. pressure energy retracting device according to claim 9, it is characterised in that be spaced on the wall of first accommodating chamber Turn up the soil provided with first raised and the second projection, the described first raised and described second raised wall and institute by first accommodating chamber State the space between outer rotor and be divided into the inlet chamber and the outlet chamber.
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| CN201510023991.XA CN104533531B (en) | 2015-01-06 | 2015-01-16 | Natural gas line pressure energy recovery system, pressure energy retracting device |
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| CN104929776A (en) * | 2015-05-29 | 2015-09-23 | 浙江浙能节能科技有限公司 | Combined cycle power generation system utilizing gas and natural gas pipe network pressure energy |
| CN108547666A (en) * | 2018-03-16 | 2018-09-18 | 北京华清微拓节能技术股份公司 | A method of making full use of low-pressure steam sensible heat latent heat |
| CN108343482A (en) * | 2018-04-18 | 2018-07-31 | 北京华清微拓节能技术股份公司 | Birotor expanding machine is connected the device for generating power by waste heat of organic Rankine cycle expansion machine |
| CN114087536B (en) * | 2020-08-24 | 2024-03-19 | 惠生工程（中国）有限公司 | Steam pipe network interlocking control method for turbine jump |
| CN112361214A (en) * | 2020-11-27 | 2021-02-12 | 无锡玄同科技有限公司 | Natural gas pressure regulating system |
| CN112761732A (en) * | 2021-01-27 | 2021-05-07 | 贵州航天天马机电科技有限公司 | Series screw type natural gas depressurization power generation system |
| CN113389603A (en) * | 2021-06-08 | 2021-09-14 | 东南大学 | Tesla turbine expansion device and power generation device for recovering pressure energy |
| CN114483225B (en) * | 2022-02-24 | 2024-03-15 | 上海领晟制冷科技有限公司 | Multi-parallel combined ORC power generation system of expansion machine and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450251A (en) * | 2002-04-08 | 2003-10-22 | 李汉玉 | Rotary piston type engine mechanism and device |
| CN203847188U (en) * | 2014-05-13 | 2014-09-24 | 北京华航盛世能源技术有限公司 | Complementary energy comprehensive utilization system of natural gas regulator station |
| CN104213939A (en) * | 2014-09-01 | 2014-12-17 | 江苏航天惠利特环保科技有限公司 | A pressure energy-recycling generation device for a natural gas pipe network |
| CN204827538U (en) * | 2015-01-16 | 2015-12-02 | 无锡玄同科技有限公司 | Natural gas line pressure energy recovery system , pressure energy recovery unit , rotor expansion machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009097389A (en) * | 2007-10-15 | 2009-05-07 | Jfe Engineering Corp | Decompression installation provided with energy recovery function |
| CN102538390B (en) * | 2011-12-22 | 2014-08-06 | 西安交通大学 | Novel natural gas liquefaction system and natural gas liquefaction method |
-
2015
- 2015-01-16 CN CN201510023991.XA patent/CN104533531B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1450251A (en) * | 2002-04-08 | 2003-10-22 | 李汉玉 | Rotary piston type engine mechanism and device |
| CN203847188U (en) * | 2014-05-13 | 2014-09-24 | 北京华航盛世能源技术有限公司 | Complementary energy comprehensive utilization system of natural gas regulator station |
| CN104213939A (en) * | 2014-09-01 | 2014-12-17 | 江苏航天惠利特环保科技有限公司 | A pressure energy-recycling generation device for a natural gas pipe network |
| CN204827538U (en) * | 2015-01-16 | 2015-12-02 | 无锡玄同科技有限公司 | Natural gas line pressure energy recovery system , pressure energy recovery unit , rotor expansion machine |
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