CN105888757B - Closed circulating power generation device - Google Patents
Closed circulating power generation device Download PDFInfo
- Publication number
- CN105888757B CN105888757B CN201610460646.7A CN201610460646A CN105888757B CN 105888757 B CN105888757 B CN 105888757B CN 201610460646 A CN201610460646 A CN 201610460646A CN 105888757 B CN105888757 B CN 105888757B
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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.)
- Expired - Fee Related
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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 engine power generation circulating device generated electricity by utilization heat energy, more particularly to a kind of to adopt
The closed cycle TRT of claw decompressor and lobe pump.
Background technology
The power generation cycle generated electricity currently used for heat mainly has steam turbine power generation circulation and CETRINE power generation cycle；Steam turbine fills
Put huge, be adapted to Electricity Generation；CETRINE power generation cycle is used for the higher occasion of heat source temperature.Due to the applied field that heat generates electricity
Close more and more, in order to the thermal source using different temperatures carries out hot generating, such as：Hot generating is carried out using geothermal energy, to Novel hot
The demand of engine power generation circulating device is also more and more urgent, therefore is developed for the new work engine TRT tool of heat generating
There is important meaning.
Chinese patent, publication No. CN102926826A disclose a kind of claw engine power generation circulation generated electricity for heat
Device, its power generation process include：Expansion process of the gas in claw decompressor, the isobaric exothermic process in regenerator,
Isobaric exothermic process in cooler, the compression process in claw compressor, the isobaric heat absorption process in regenerator are adding
Isobaric heat absorption process in hot device；The characteristics of device：(1) generating working medium is gas, without phase transformation in power generation cycle, it is adaptable to
The higher application scenario of heat source temperature, such as：Solar energy high temperature heat generates electricity；(2) using two-stage claw decompressor and two-stage claw pressure
Contracting machine, its compression ratio are high, but are not carried out the air inlet of claw decompressor at any time all in open mode, do not make
Obtaining claw decompressor has continuous work(output in whole cycle, and its output work is uneven.
The content of the invention
The present invention proposes a kind of closed cycle TRT, including heat exchanger, gas-liquid separator, regulating valve I, lobe pump,
Claw decompressor, electromotor, condensation blender and regulating valve II；Its course of work is：Ammonia Jing after lobe pump supercharging is entered and is changed
Hot device heat absorption, the ammonia after heat absorption produce gaseous ammonia and water vapour, and entering back into gas-liquid separator carries out gas-liquid separation, isolates
Liquid enters condensation blender, and the gaseous ammonia isolated and the mixed gas of water vapour carry out expanding externally into claw decompressor
Work done, the gas after expansion are mixed gas and liquid in blender is condensed, while cold also into condensation blender
But, liquid ammonia is condensed into, then after being pressurized by lobe pump, is absorbed heat in heat exchanger, complete one action circulation；By adjusting
Pressure in valve I and regulating valve II control gas-liquid separator and condensation blender.The device can be used for the hot generating field of middle low temperature
Close.
The present invention is adopted the following technical scheme that：
A kind of closed cycle TRT, claw decompressor are arranged in parallel the intermeshing claw rotor of four groups of identicals,
90 degree of carrier phase shift between four groups of claw rotors, it is ensured that there is the air inlet of one group of claw rotor any time all the time in beating
Open state so that claw decompressor has continuous work(output in whole cycle so that claw decompressor smooth running, output
Torque it is uniform；The position of the air inlet and air vent of four groups of claw rotors is arranged symmetrically so that each group claw rotor institute
The axial gas forces received mutually are balanced；The roots rotor of four groups of claw rotors and lobe pump of claw decompressor is connected on same
On countershaft, this pair of synchromesh gear of countershaft connection realizes the correct engagement between whole claw rotors and roots rotor；Electromotor
Main shaft be connected on the axle that claw expander inlet side claw rotor is located；Roots is driven by claw decompressor in work
Pump and generator operation, are generated electricity.
A kind of closed cycle TRT, the claw rotor of claw decompressor all adopt complete smooth claw-type rotor profile,
The stress of claw rotor can be improved, reduce its deformation；Lobe pump is pressurized for liquid using SANYE roots rotor so that liquid
In body pressurization, moment of resistance change is uniform；Improve the reliability of claw decompressor and lobe pump.
The invention has the beneficial effects as follows：
1. claw decompressor and lobe pump are connected with generator coaxle, whole TRT has compact conformation, operating
The advantage of steady and decompressor dry type oil-free.
2. claw decompressor is using being arranged in parallel the intermeshing claw rotor of four groups of identicals, between four groups of claw rotors
90 degree of carrier phase shift, it is ensured that during work at least the air inlet of one group of claw rotor be in open mode so that claw is swollen
Swollen machine has continuous work(output in whole cycle so that claw decompressor smooth running, the torque for exporting are uniform, while having
Beneficial to the rotatory inertia dynamic balance of shafting rotor；The air inlet of four groups of claw rotors of claw decompressor and air vent position
It is arranged symmetrically so that the axial gas forces suffered by each group claw rotor are mutually balanced.
3. the claw rotor of claw decompressor all adopts complete smooth claw-type rotor profile, improves the stress of claw rotor
State, reduces its deformation, improves the reliability of claw decompressor.
4. claw decompressor is adopted, the expansion process thermal efficiency is high；Using ammonia as cycle fluid, the course of work has phase
Becoming, small power consumption being pressurized with lobe pump, generating efficiency is high.
5. blood circulation adopts closed cycle, and equipment is not perishable, long service life.
6. cycle fluid adopts ammonia water mixture, can change its boiling point by the ratio for adjusting ammonia and water, it is adaptable to no
The heat energy power-generating of synthermal scope.
Description of the drawings
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 separator；3-regulating valve I；4-lobe pump；5-claw decompressor；6-send out
Motor；7-condensation blender；8-regulating valve II；201-shaft coupling；202-bearing；203-synchromesh gear；204-the first
Group claw rotor；205-the second group claw rotor；206-the three group of claw rotor；207-the four group of claw rotor；301—
The air inlet of first group of claw rotor；The air inlet of the 302-the second group claw rotor；The air inlet of 303-the three group of claw rotor
Mouthful；The air inlet of 304-the four group of claw rotor；The entrance of 305-lobe pump；The air vent of the 306-the first group claw rotor；
The air vent of the 307-the second group claw rotor；The air vent of 308-the three group of claw rotor；309-the four group of claw rotor
Air vent；The outlet of 310-lobe pump.
Specific embodiment
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
2nd, regulating valve I3, lobe pump 4, claw decompressor 5, electromotor 6, condensation blender 7 and regulating valve II8；Its power generation cycle process
It is：Using ammonia as cycle fluid, ammonia absorbs heat into heat exchanger 1 Jing after the supercharging of lobe pump 4, and the ammonia after heat absorption is produced
Gaseous ammonia and water vapour, entering back into gas-liquid separator 2 carries out gas-liquid separation, and the liquid isolated enters condensation blender 7, separates
The gaseous ammonia and the mixed gas of water vapour for going out carries out expanding external work done into claw decompressor 5, and the gas after expansion also enters
Enter to condense blender 7, mixed gas and liquid in blender 7 is condensed, at the same it is cooled, liquid ammonia is condensed into, then
After being pressurized by lobe pump 4, the heat absorption in heat exchanger 1 completes one action circulation；Controlled by regulating valve I3 and regulating valve II8
Pressure in gas-liquid separator processed 2 and condensation blender 7.
Engine structure schematic diagram as shown in Figure 2, including shaft coupling 201, bearing 202, synchromesh gear 203, claw be swollen
Swollen machine 5, lobe pump 4；Claw decompressor 5 includes the intermeshing claw rotor of four groups of identicals being arranged in parallel, respectively
One group of claw rotor, 204, second group of claw rotor 205, the 3rd group of claw rotor 206, the 4th group of claw rotor 207；Claw is swollen
Swollen machine 5 is coaxial with lobe pump 4 to connect, and is realized between whole claw rotors and roots rotor under the drive of synchromesh gear 203
Correct engagement；Shaft coupling 201 is connected on the axle that the claw rotor of 5 air inlet side of claw decompressor is located, and shaft coupling 201 connects
Sending and receiving motor 6.
The rotor schematic diagram of claw decompressor as shown in Figure 3 and lobe pump, claw decompressor 5 be arranged in parallel four groups it is identical
Intermeshing claw rotor, 90 degree of the carrier phase shift between four groups of claw rotors, the air inlet of four groups of claw rotors and
The position of air vent is arranged symmetrically；The claw rotor of claw decompressor 5 all adopts complete smooth claw-type rotor profile, Roots
Pump 4 is pressurized for liquid using SANYE roots rotor.
Although the above-mentioned accompanying drawing that combines is described to the specific embodiment of the present invention, not to present invention protection model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
The various modifications made by needing to pay creative work or deformation are still within protection scope of the present invention.
Claims (2)
1. a kind of closed cycle TRT, including heat exchanger (1), gas-liquid separator (2), regulating valve I (3), lobe pump (4),
Claw decompressor (5), electromotor (6), condensation blender (7) and regulating valve II (8)；It is characterized in that：Using ammonia as circulation
Working medium, ammonia are absorbed heat into heat exchanger (1) Jing after lobe pump (4) supercharging, and the ammonia after heat absorption produces gaseous ammonia and water vapour,
Entering back into gas-liquid separator (2) carries out gas-liquid separation, and the liquid isolated enters condensation blender (7), the gaseous ammonia isolated
Carry out expanding external work done into claw decompressor (5) with the mixed gas of water vapour, the gas after expansion is mixed also into condensation
Clutch (7), is mixed in the interior gas of condensation blender (7) and liquid, at the same it is cooled, liquid ammonia is condensed into, then by sieve
After thatch pump (4) supercharging, the heat absorption in heat exchanger (1) completes one action circulation；By regulating valve I (3) and regulating valve II
(8) control the pressure in gas-liquid separator (2) and condensation blender (7)；Claw decompressor (5) is arranged in parallel four groups of identical phases
The claw rotor for mutually engaging, 90 degree of the carrier phase shift between four groups of claw rotors, it is ensured that any time has one group of claw all the time
The air inlet of rotor is in open mode so that claw decompressor (5) has continuous energy output in whole cycle so that
Claw decompressor (5) smooth running, the torque for exporting are uniform；The position pair of the air inlet and air vent of four groups of claw rotors
Claim arrangement so that the axial gas forces suffered by each group claw rotor are mutually balanced；Four groups of claw rotors of claw decompressor (5) and
The roots rotor of lobe pump (4) be connected on it is same it is countershaft on, this pair of synchromesh gear (203) of countershaft connection realizes whole pawls
Correct engagement between formula rotor and roots rotor；The main shaft of electromotor (6) is connected in claw decompressor (5) air inlet side pawl
On the axle that formula rotor is located；Lobe pump (4) and electromotor (6) operating are driven by claw decompressor (5) in work, is generated electricity.
2. a kind of closed cycle TRT according to claim 1, is characterized in that：The claw of claw decompressor (5) turns
Son all adopts complete smooth claw-type rotor profile, can improve the stress of claw rotor, reduces its deformation；Lobe pump (4) is adopted
It is pressurized for liquid with SANYE roots rotor so that in liquid pressurization, moment of resistance change is uniform；Improve claw decompressor
(5) and lobe pump (4) reliability.
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 CN105888757A (en) | 2016-08-24 |
| CN105888757B true CN105888757B (en) | 2017-04-12 |
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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 |
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| Country | Link |
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| CN (1) | CN105888757B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106628276B (en) * | 2016-11-01 | 2019-09-20 | 清华大学 | A kind of spacecraft recycles thermal control system from driving two-phase |
| CN108087037B (en) * | 2018-01-22 | 2023-05-05 | 中国石油大学(华东) | Closed double-screw expander power generation device |
| CN109356659B (en) * | 2018-12-25 | 2024-01-02 | 中国石油大学(华东) | Conical screw rotor of double-screw expander |
Family Cites Families (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 |
| PL1613841T3 (en) * | 2004-04-16 | 2007-05-31 | Siemens Ag | Method and device for carrying out a thermodynamic cyclic process |
| JP4844489B2 (en) * | 2007-07-19 | 2011-12-28 | 株式会社豊田自動織機 | Fluid machinery |
| JP5081894B2 (en) * | 2009-12-14 | 2012-11-28 | 株式会社神戸製鋼所 | Power generator |
| CN102330688B (en) * | 2011-10-13 | 2014-08-13 | 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 |
| CN102926826B (en) * | 2012-11-20 | 2015-12-09 | 中国石油大学(华东) | For the claw engine power generation circulation means of heat generating |
| 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
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| Publication number | Publication date |
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| CN105888757A (en) | 2016-08-24 |
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Granted publication date: 20170412 Termination date: 20180623 |