CN105888757A - Closed circulating power generation device - Google Patents
Closed circulating power generation device Download PDFInfo
- Publication number
- CN105888757A CN105888757A CN201610460646.7A CN201610460646A CN105888757A CN 105888757 A CN105888757 A CN 105888757A CN 201610460646 A CN201610460646 A CN 201610460646A CN 105888757 A CN105888757 A CN 105888757A
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- CN
- China
- Prior art keywords
- claw
- rotor
- decompressor
- gas
- condensation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
- F01K25/106—Ammonia
-
- 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
- F01C1/12—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type
- F01C1/14—Rotary-piston machines or engines of intermeshing engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a closed circulating power generation device which comprises a heat exchanger (1), a gas-liquid separator (2), a regulating valve I (3), a roots pump (4), a claw type expansion machine (5), a power generator (6), a condensation mixer (7) and a regulating valve II (8). A power generation work cycle comprises the expansion process of a working medium in the claw type expansion machine (5), the condensation and mixing process of the working medium in the condensation mixer (7), the pressurization process of the working medium in the roots pump (4) and the heat suction process of the working medium in the heat exchanger (1). The roots pump (4) and the claw type expansion machine (5) are coaxially connected in series. Fully-smooth claw type rotor molded lines are adopted on all sets of claw type expansion machine rotors, and the phase angles of the rotors differ in 90 degrees. Therefore, the power generation device has the advantages of being compact in structure, stable in running, high in reliability, high in rotating speed and wide in application temperature range.
Description
Technical field
The present invention relates to a kind of utilize heat energy to carry out the engine power generation circulating device generated electricity, particularly relate to a kind of use claw swollen
The closed cycle TRT of swollen machine and lobe pump.
Background technology
The power generation cycle being currently used for heat generating mainly has steam turbine power generation circulation and Stirling power generation cycle；Steam-turbine plant is huge,
It is suitable for Electricity Generation；Stirling power generation cycle is used for the occasion that heat source temperature is higher.Due to heat generating application scenario increasingly
Many, in order to utilize the thermal source of different temperatures to carry out heat generating, such as: utilize geothermal energy to carry out heat generating, Novel hot electromotor is sent out
The demand of electricity circulating device is more urgent, and the new work engine TRT being therefore developed for heat generating has important meaning
Justice.
Chinese patent, publication No. CN102926826A, disclose a kind of claw engine power generation circulating device for heat generating,
Its power generation process includes: gas expansion process in claw decompressor, and the isobaric exothermic process in regenerator, at cooler
Interior isobaric exothermic process, the compression process in claw compressor, the isobaric heat absorption process in regenerator, in heater
Isobaric heat absorption process；The feature of this device: (1) generating working medium is gas, without phase transformation in power generation cycle, it is adaptable to thermal source
The application scenario that temperature is higher, such as: solar energy high temperature heat generates electricity；(2) two-stage claw decompressor and two-stage claw compressor are used,
Its compression ratio is high, but is not carried out the air inlet of claw decompressor at any time all in open mode, does not make claw
Decompressor has continuous print merit to export within the whole cycle, and its output work is uneven.
Summary of the invention
The present invention proposes a kind of closed cycle TRT, including heat exchanger (1), gas-liquid separator (2), regulation valve I (3),
Lobe pump (4), claw decompressor (5), electromotor (6), condensation blender (7) and regulation valve II (8)；Its work
Process is: ammonia, after lobe pump (4) supercharging, enters heat exchanger (1) heat absorption, and the ammonia after heat absorption produces gaseous ammonia and water
Steam, enters back into gas-liquid separator (2) and carries out gas-liquid separation, and isolated liquid enters condensation blender (7), isolates
Gaseous ammonia and water vapour mixed gas enter claw decompressor (5) carry out expanding external work done, the gas after expansion also into
Condensation blender (7), in condensation blender (7), gas and liquid mix, and are cooled simultaneously, are condensed into liquid ammonia
Water, then by lobe pump (4) supercharging after, enter heat absorption in heat exchanger (1), complete one action circulation；By regulation valve I
And regulation valve II (8) controls gas-liquid separator (2) and the pressure condensed in blender (7) (3).During this device can be used for
The heat generating occasion of low temperature.
The present invention adopts the following technical scheme that
A kind of closed cycle TRT, claw decompressor (5) is arranged in parallel four groups of identical intermeshing claw rotors, and four
Carrier phase shift 90 degree between group claw rotor, it is ensured that any time has the air inlet of one group of claw rotor to be in open shape all the time
State so that claw decompressor (5) has continuous print merit to export within the whole cycle so that claw decompressor (5) smooth running,
The moment of output is uniform；The air inlet of four groups of claw rotors and the position of air vent are arranged symmetrically with so that respectively organize claw rotor
Suffered axial gas forces mutually balances；Four groups of claw rotors of claw decompressor (5) and the roots rotor quilt of lobe pump (4)
Be connected on same countershaft on, a pair synchromesh gear of this countershaft connection (203), it is achieved all between claw rotor and roots rotor
Correct engagement；The main shaft of electromotor (6) is connected on the axle at claw decompressor (5) air inlet side claw rotor place；Work
Work is driven lobe pump (4) and electromotor (6) operating by claw decompressor (5), generates electricity.
A kind of closed cycle TRT, the claw rotor of claw decompressor (5) all uses the most smooth claw-type rotor profile, can
Improve the stress of claw rotor, reduce its deformation；Lobe pump (4) uses SANYE roots rotor for fluid pressurization so that
During fluid pressurization, moment of resistance change is uniformly；Improve claw decompressor (5) and the reliability of lobe pump (4).
The invention has the beneficial effects as follows:
1. claw decompressor (5) and lobe pump (4) coaxially being connected with electromotor (6), it is tight that whole TRT has structure
Gather, smooth running and the advantage of decompressor dry type oil-free.
2. claw decompressor (5) uses and is arranged in parallel four groups of identical intermeshing claw rotors, between four groups of claw rotors
Carrier phase shift 90 degree, it is ensured that during work, at least the air inlet of one group of claw rotor is in open mode so that claw decompressor
(5) have continuous print merit to export within the whole cycle so that claw decompressor (5) smooth running, output moment uniform,
Be conducive to the rotatory inertia dynamic balance of axle system rotor simultaneously；The air inlet of four groups of claw rotors of claw decompressor (5) and air vent
Position is arranged symmetrically with so that respectively organizes the axial gas forces suffered by claw rotor and mutually balances.
3. the claw rotor of claw decompressor (5) all uses the most smooth claw-type rotor profile, improves the stress shape of claw rotor
State, reduces its deformation, improves the reliability of claw decompressor (5).
4. using claw decompressor (5), the expansion process thermal efficiency is high；Ammonia is used to have phase transformation as cycle fluid, work process,
Little by lobe pump (4) supercharging power consumption, generating efficiency is high.
5. blood circulation uses closed cycle, and equipment is the most perishable, and service life is long.
6. cycle fluid uses ammonia water mixture, can change its boiling point by the ratio adjusting ammonia and water, it is adaptable to different temperatures
The heat energy power-generating of scope.
Accompanying drawing explanation
Fig. 1 is a kind of closed cycle TRT schematic diagram.
Fig. 2 is engine structure schematic diagram.
Fig. 3 is the rotor schematic diagram of claw decompressor and lobe pump.
In figure: 1 heat exchanger；2 gas-liquid separators；3 regulation valve I；4 lobe pumps；5 claw decompressors；6
Motor；7 condensation blenders；8 regulation valve II；201 shaft couplings；202 bearings；203 synchromesh gears；204
One group of claw rotor；205 second groups of claw rotors；206 the 3rd groups of claw rotors；207 the 4th groups of claw rotors；301—
The air inlet of first group of claw rotor；The air inlet of 302 second groups of claw rotors；The air inlet of 303 the 3rd groups of claw rotors；
The air inlet of 304 the 4th groups of claw rotors；The entrance of 305 lobe pumps；The air vent of 306 first groups of claw rotors；307—
The air vent of second group of claw rotor；The air vent of 308 the 3rd groups of claw rotors；The air vent of 309 the 4th groups of claw rotors；
310 Roots's delivery side of pump.
Detailed description of the invention
The present invention is further described below in conjunction with the accompanying drawings.
A kind of closed cycle TRT schematic diagram as shown in Figure 1, TRT include heat exchanger (1), gas-liquid separator (2),
Regulation valve I (3), lobe pump (4), claw decompressor (5), electromotor (6), condensation blender (7) and regulation valve
II(8)；Its power generation cycle process is: using ammonia as cycle fluid, ammonia is after lobe pump (4) supercharging, and entrance is changed
Hot device (1) absorbs heat, and the ammonia after heat absorption produces gaseous ammonia and water vapour, enters back into gas-liquid separator (2) and carries out gas-liquid separation,
Isolated liquid enters condensation blender (7), and the mixed gas of isolated gaseous ammonia and water vapour enters claw decompressor (5)
Carrying out expanding external work done, the gas after expansion is also into condensation blender (7), gas and liquid in condensation blender (7)
Body mixes, and is cooled simultaneously, is condensed into liquid ammonia, then by lobe pump (4) supercharging after, enter in heat exchanger (1)
Heat absorption, completes one action circulation；Gas-liquid separator (2) and condensation is controlled by regulation valve I (3) and regulation valve II (8)
Pressure in blender (7).
Engine structure schematic diagram as shown in Figure 2, including shaft coupling (201), bearing (202), synchromesh gear (203),
Claw decompressor (5), lobe pump (4)；Claw decompressor (5) includes the four groups of identical intermeshing claw being arranged in parallel
Rotor, respectively first group claw rotor (204), second group of claw rotor (205), the 3rd group of claw rotor (206),
Four groups of claw rotors (207)；Claw decompressor (5) is coaxially connected with lobe pump (4), in the drive of synchromesh gear (203)
Correct engagement between the lower whole claw rotor of realization and roots rotor；Shaft coupling (201) is connected claw decompressor (5)
On the axle at the claw rotor place of air inlet side, shaft coupling (201) connects electromotor (6).
Claw decompressor as shown in Figure 3 and the rotor schematic diagram of lobe pump, claw decompressor (5) be arranged in parallel four groups identical
Intermeshing claw rotor, the carrier phase shift between four groups of claw rotors 90 degree, the air inlet of four groups of claw rotors and aerofluxus
The position of mouth is arranged symmetrically with；The claw rotor of claw decompressor (5) all uses the most smooth claw-type rotor profile, lobe pump
(4) use SANYE roots rotor for fluid pressurization.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not limit to scope
System, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art need not pay
Go out various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (3)
1. a closed cycle TRT, including heat exchanger (1), gas-liquid separator (2), regulation valve I (3), sieve
Thatch pump (4), claw decompressor (5), electromotor (6), condensation blender (7) and regulation valve II (8)；It is characterized in that:
Using ammonia as cycle fluid, ammonia, after lobe pump (4) supercharging, enters heat exchanger (1) heat absorption, the ammonia after heat absorption
Producing gaseous ammonia and water vapour, enter back into gas-liquid separator (2) and carry out gas-liquid separation, isolated liquid enters condensation blender
(7), the mixed gas of isolated gaseous ammonia and water vapour enters claw decompressor (5) and carries out expanding external work done, expands
After gas also into condensation blender (7), in condensation blender (7), gas and liquid mix, and are cooled simultaneously,
Be condensed into liquid ammonia, then by lobe pump (4) supercharging after, enter heat absorption in heat exchanger (1), complete one action circulation；
The pressure in gas-liquid separator (2) and condensation blender (7) is controlled by regulation valve I (3) and regulation valve II (8).
A kind of closed cycle TRT the most according to claim 1, is characterized in that: claw decompressor (5) cloth in parallel
Put four groups of identical intermeshing claw rotors, the carrier phase shift between four groups of claw rotors 90 degree, it is ensured that any time begins
The air inlet having one group of claw rotor eventually is in open mode so that claw decompressor (5) has continuous print energy within the whole cycle
Amount output so that claw decompressor (5) smooth running, output moment uniform；The air inlet of four groups of claw rotors and air vent
Position be arranged symmetrically with so that respectively organize the axial gas forces suffered by claw rotor and mutually balance；The four of claw decompressor (5)
Group claw rotor and the roots rotor of lobe pump (4) be connected on same countershaft on, a pair synchromesh gear of this countershaft connection (203),
Realize the correct engagement between whole claw rotor and roots rotor；The main shaft of electromotor (6) is connected in claw decompressor (5)
On the axle at air inlet side claw rotor place；Work is driven lobe pump (4) and electromotor (6) fortune by claw decompressor (5)
Turn, generate electricity.
A kind of closed cycle TRT the most according to claim 1, is characterized in that: the claw of claw decompressor (5)
Rotor all uses the most smooth claw-type rotor profile, can improve the stress of claw rotor, reduces its deformation；Lobe pump (4)
Use SANYE roots rotor for fluid pressurization so that during fluid pressurization, moment of resistance change is uniformly；Improve claw decompressor
And the reliability of lobe pump (4) (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460646.7A CN105888757B (en) | 2016-06-23 | 2016-06-23 | Closed circulating power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610460646.7A CN105888757B (en) | 2016-06-23 | 2016-06-23 | Closed circulating power generation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105888757A true CN105888757A (en) | 2016-08-24 |
| CN105888757B CN105888757B (en) | 2017-04-12 |
Family
ID=56718071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610460646.7A Expired - Fee Related CN105888757B (en) | 2016-06-23 | 2016-06-23 | Closed circulating power generation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105888757B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628276A (en) * | 2016-11-01 | 2017-05-10 | 清华大学 | Spacecraft self-driven two-phase circulation heat control system |
| CN108087037A (en) * | 2018-01-22 | 2018-05-29 | 中国石油大学(华东) | A kind of enclosed twin-screw expander power generator |
| CN109356659A (en) * | 2018-12-25 | 2019-02-19 | 中国石油大学(华东) | A kind of conical screw rotor of twin-screw expander |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2503232Y (en) * | 2001-07-13 | 2002-07-31 | 王连智 | High-pressure-resistant multi-stage claw-type rotor vacuum pump |
| CN2674154Y (en) * | 2003-09-03 | 2005-01-26 | 于传跃 | Straight claw rotator vacuum pump |
| CN1993536A (en) * | 2004-04-16 | 2007-07-04 | 西门子公司 | Method and device for carrying out a thermodynamic cyclic process |
| CN101548108A (en) * | 2007-07-19 | 2009-09-30 | 株式会社丰田自动织机 | Fluid machine |
| CN102330688A (en) * | 2011-10-13 | 2012-01-25 | 中国石油大学(华东) | Claw-type rotor profile |
| CN102639820A (en) * | 2009-12-14 | 2012-08-15 | 株式会社神户制钢所 | Screw expander system |
| CN102797525A (en) * | 2012-08-31 | 2012-11-28 | 天津大学 | Low-temperature Rankine circulation system employing non-azeotropic mixed working medium variable components |
| CN102926826A (en) * | 2012-11-20 | 2013-02-13 | 中国石油大学(华东) | Claw type generator power generation circulating device for thermal power generation |
| CN205823356U (en) * | 2016-06-23 | 2016-12-21 | 中国石油大学(华东) | A kind of closed cycle TRT |
-
2016
- 2016-06-23 CN CN201610460646.7A patent/CN105888757B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2503232Y (en) * | 2001-07-13 | 2002-07-31 | 王连智 | High-pressure-resistant multi-stage claw-type rotor vacuum pump |
| CN2674154Y (en) * | 2003-09-03 | 2005-01-26 | 于传跃 | Straight claw rotator vacuum pump |
| CN1993536A (en) * | 2004-04-16 | 2007-07-04 | 西门子公司 | Method and device for carrying out a thermodynamic cyclic process |
| CN101548108A (en) * | 2007-07-19 | 2009-09-30 | 株式会社丰田自动织机 | Fluid machine |
| CN102639820A (en) * | 2009-12-14 | 2012-08-15 | 株式会社神户制钢所 | Screw expander system |
| CN102330688A (en) * | 2011-10-13 | 2012-01-25 | 中国石油大学(华东) | Claw-type rotor profile |
| CN102797525A (en) * | 2012-08-31 | 2012-11-28 | 天津大学 | Low-temperature Rankine circulation system employing non-azeotropic mixed working medium variable components |
| CN102926826A (en) * | 2012-11-20 | 2013-02-13 | 中国石油大学(华东) | Claw type generator power generation circulating device for thermal power generation |
| CN205823356U (en) * | 2016-06-23 | 2016-12-21 | 中国石油大学(华东) | A kind of closed cycle TRT |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628276A (en) * | 2016-11-01 | 2017-05-10 | 清华大学 | Spacecraft self-driven two-phase circulation heat control system |
| CN108087037A (en) * | 2018-01-22 | 2018-05-29 | 中国石油大学(华东) | A kind of enclosed twin-screw expander power generator |
| CN108087037B (en) * | 2018-01-22 | 2023-05-05 | 中国石油大学(华东) | Closed double-screw expander power generation device |
| CN109356659A (en) * | 2018-12-25 | 2019-02-19 | 中国石油大学(华东) | A kind of conical screw rotor of twin-screw expander |
| CN109356659B (en) * | 2018-12-25 | 2024-01-02 | 中国石油大学(华东) | Conical screw rotor of double-screw expander |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105888757B (en) | 2017-04-12 |
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