CN107461222A - A kind of single-screw expander of integrated guiding valve - Google Patents
A kind of single-screw expander of integrated guiding valve Download PDFInfo
- Publication number
- CN107461222A CN107461222A CN201710824254.9A CN201710824254A CN107461222A CN 107461222 A CN107461222 A CN 107461222A CN 201710824254 A CN201710824254 A CN 201710824254A CN 107461222 A CN107461222 A CN 107461222A
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- China
- Prior art keywords
- guiding valve
- screw
- screw rotor
- housing
- screw expander
- 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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- 239000000203 mixture Substances 0.000 claims description 2
- 241000239290 Araneae Species 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002918 waste heat Substances 0.000 abstract description 3
- 230000003434 inspiratory effect Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 4
- 230000002950 deficient Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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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
- F01C1/12—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
- F01C1/16—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 with helical teeth, e.g. chevron-shaped, screw type
-
- 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
- F01C13/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
-
- 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
- F01C20/00—Control of, monitoring of, or safety arrangements for, machines or engines
- F01C20/18—Control of, monitoring of, or safety arrangements for, machines or engines characterised by varying the volume of the working chamber
-
- 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
- F01C21/08—Rotary pistons
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A kind of single-screw expander of integrated guiding valve, belong to waste heat overbottom pressure energy utilization technology field.A kind of single-screw expander of integrated guiding valve, including housing, main shaft, single-screw rotor, star-wheel guiding valve etc., the air-breathing guiding valve adjusting means being centrosymmetrically arranged and interior volume specific ratio guiding valve adjusting means are set on housing, corresponding suction muffler is formed between air-breathing guiding valve adjusting means, rotor and spider piece, corresponding discharge chamber is formed between interior volume specific ratio guiding valve adjusting means, rotor and spider piece.This single-screw expander solves the technical problem that single-screw expander efficiency is low under variable working condition and rotary speed unstabilization is fixed.
Description
Technical field
The present invention relates to a kind of single-screw expander of integrated guiding valve, belong to waste heat overbottom pressure technical field of energy utilization.
Background technology
With increasingly sharpening for energy shortage and problem of environmental pollution, organic Rankine bottoming cycle technology recovery waste heat overbottom pressure is utilized
The energy becomes the main flow direction of current power-saving technology.Wherein expanding machine is one of core component of organic Rankine bottoming cycle, in crowd
Among more expanding machines, single-screw expander has the series of advantages such as simple in construction, stress balance, low vibration and long-life, institute
Motive power outputting apparatus using it as organic Rankine bottoming cycle has preferable application prospect.
Researchers have found that single-screw expander has an optimum speed in the application study to single-screw expander
And optimum expansion ratio, i.e. operating point for design.If actual operating mode deviates the operating point for design, single-screw expander can be caused to turn
Prompt drop is low or raises, and then causes expanding machine leakage serious, frictional heat aggravation and the deficient hair for expanding or crossing expansion-loss
It is raw, reduce the efficiency of single-screw expander.The change of afterheat heat output and the change in season can change organic in actual motion
The operating condition of Rankine cycle system, so that single-screw expander is run in the case of off-design operating point.Therefore, open
The Effec-tive Function of single-screw expander and invariablenes turning speed have become the task of top priority under exhibition variable working condition.
When operating condition changes, the charge volume flow and pressure at expulsion of single-screw expander are changed, and are caused
The rotating speed and expansion ratio of expanding machine change, and reduce the efficiency of single-screw expander.In order to adapt to charge volume flow and exhaust pressure
The change of power, this problem can be optimized by changing air inlet element volume and the exhaust element volume of single-screw expander.
In the case where single screw rod structure size is certain, the size of single screw rod air inlet element volume and exhaust element volume terminates with air inlet
It is closely related that angle and exhaust start angle.By increasing the slide-valve gear of axial movement, change air inlet ending corner and exhaust starts angle
Size, it is ensured that under variable working condition single-screw expander efficient and permanent rotating speed operation.Therefore, a kind of integrated guiding valve is studied
Single-screw expander is significant.
The content of the invention
The purpose of the present invention is to design a kind of single-screw expander of integrated guiding valve, by the change of spool position, makes list
Screw expander adapts to the change of outer work condition, so as to realize that the efficient and permanent rotating speed of single-screw expander under variable working condition is run.
The present invention uses following technical scheme to achieve the above object：
A kind of single-screw expander of integrated guiding valve, mainly including housing, main shaft, single-screw rotor, star-wheel；Single screw rod turns
A star-wheel is symmetrically respectively arranged in the both sides of son, and star-wheel, single-screw rotor are located in housing, and single-screw rotor is fixed with main shaft to be connected
Connect, it is characterised in that also including two guiding valves, each guiding valve includes an oval rod structure and a short cylindrical structure, oval
Rod structure and short cylindrical structure have space between coaxial and relative both ends of the surface side by side, wherein the end face of oval rod structure is oblique
Face；Oval rod structure is close to single-screw rotor and axially in parallel with single-screw rotor；The angled end-face of two oval rod structures point
It is not parallel with the side of the groove most end of single-screw rotor；The position relationship of two guiding valves is right with respect to centered on single-screw rotor
Claim；Housing circumference structure and star-wheel, single-screw rotor, the overall circumferential structure of two guiding valves compositions are consistent, two guiding valves
Oval rod structure is respectively formed with single-screw rotor and housing in housing and is slidably connected, and can slide axially, and short cylindrical structure is consolidated
It is fixed；One forms corresponding suction muffler between guiding valve and single-screw rotor and housing, this guiding valve is referred to as air-breathing guiding valve regulation dress
Put；Another guiding valve discharge chamber corresponding with being formed between single-screw rotor and housing, this guiding valve are referred to as interior volume specific ratio guiding valve
Adjusting means.
Oval rod structure is respectively adjacent to a star-wheel respectively.
Above housing, the exhaust outlet of discharge chamber is arranged under housing the air inlet of the single-screw expander suction muffler
Side.
The single-screw rotor of the single-screw expander is provided with labyrinth seal and high-low pressure balance pipe.
The single-screw rotor of the single-screw expander is connected as hot charging with main shaft.
Beneficial effects of the present invention are：Using the axial movement of guiding valve, come change single-screw rotor, spider piece and housing it
Between the size of closing element volume that is formed, single-screw expander is adapted to the change of operating condition, therefore variable working condition can be made
Lower single-screw expander is efficient and the operation of permanent rotating speed.
Brief description of the drawings
Accompanying drawing 1, integrate the single-screw expander main sectional view of guiding valve；
Accompanying drawing 2, the front view of single-screw expander；
Wherein, 1 is housing, and 2 be single-screw rotor, and 3 be main shaft, and 4 be inspiratory capacity slide valve gear, and 5 be interior volume specific ratio guiding valve
Device, 6 be star-wheel, and 8 be air inlet, and 9 be exhaust outlet.
Embodiment
Technical scheme is further described in detail with reference to Figure of description.
A kind of single-screw expander of integrated guiding valve is shown in solid 1 and Fig. 2, mainly includes housing 1, main shaft 3, single-screw rotor
2nd, star-wheel 6, guiding valve (inspiratory capacity slide valve gear 4, interior volume specific ratio slide valve gear 5), air inlet 8, exhaust outlet 9 etc..Screw rotor with
Main shaft connected mode is hot charging.Labyrinth seal groove is opened on screw rotor, reduces working medium leakage.Balance is provided with screw rotor
Hole, keep high-low pressure balance.Two spider pieces are arranged symmetrically in the both sides of screw rotor.It is provided with the symmetrical both sides of the center of gravity of housing
Sliding valve hole, inspiratory capacity guiding valve and interior volume specific ratio guiding valve are installed.Inspiratory capacity guiding valve and content the ratio guiding valve of arrangement in a center of symmetry by
Synchromesh gear controls, it is ensured that the uniformity of the movement of guiding valve.
HTHP organic working medium gas enters single-screw expander, and lead-screw rotates and spider piece rotates, so as to band
Dynamic generator operation.When afterheat heat output change or seasonal variations, organic working medium is set to enter gas in single-screw expander
Product flow amount and pressure at expulsion change, and now act inspiratory capacity guiding valve and interior volume specific ratio guiding valve to maintain the perseverance of single-screw expander
Rotating speed runs and avoided expansion and deficient expansion-loss.
Applicant is described in detail and described to embodiments of the invention with reference to Figure of description, but this area skill
Art personnel are it should be understood that above example is only the preferred embodiments of the invention, and explanation is intended merely to help reader in detail
More fully understand that the present invention is spiritual, and not limiting the scope of the invention, on the contrary, any invention essence based on the present invention
Any improvement or modification that god is made should all be fallen within the scope and spirit of the invention.
Claims (5)
- A kind of 1. single-screw expander of integrated guiding valve, mainly including housing, main shaft, single-screw rotor, star-wheel；Single-screw rotor Both sides symmetrically respectively arrange a star-wheel, star-wheel, single-screw rotor be located in housing, and single-screw rotor is fixedly connected with main shaft, Characterized in that, also including two guiding valves, each guiding valve includes an oval rod structure and a short cylindrical structure, long cylinder knot Structure and short cylindrical structure have space between coaxial and relative both ends of the surface side by side, wherein the end face of oval rod structure is inclined-plane； Oval rod structure is close to single-screw rotor and axially in parallel with single-screw rotor；The angled end-face of two oval rod structures respectively with The side of the groove of single-screw rotor most end is parallel；The position relationship of two guiding valves is symmetrical with respect to centered on single-screw rotor；Shell Body circumference structure is consistent with the overall circumferential structure of star-wheel, single-screw rotor, two guiding valve compositions, the long cylinder of two guiding valves Structure is respectively formed with single-screw rotor and housing in housing and is slidably connected, and can slide axially, and short cylindrical structure is fixed；One Corresponding suction muffler is formed between guiding valve and single-screw rotor and housing, this guiding valve is referred to as air-breathing guiding valve adjusting means；It is another Individual guiding valve discharge chamber corresponding with being formed between single-screw rotor and housing, this guiding valve are referred to as interior volume specific ratio guiding valve regulation dress Put.
- 2. according to a kind of single-screw expander of integrated guiding valve described in claim 1, it is characterised in that oval each point of rod structure A star-wheel is not adjacent to.
- 3. according to a kind of single-screw expander of integrated guiding valve described in claim 1, it is characterised in that single-screw expander is inhaled Above housing, the exhaust outlet of discharge chamber is arranged on below housing the air inlet of air cavity.
- 4. according to a kind of single-screw expander of integrated guiding valve described in claim 1, it is characterised in that single-screw expander Single-screw rotor is provided with labyrinth seal and high-low pressure balance pipe.
- 5. according to a kind of single-screw expander of integrated guiding valve described in claim 1, it is characterised in that single-screw expander Single-screw rotor is connected as hot charging with main shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710824254.9A CN107461222A (en) | 2017-09-13 | 2017-09-13 | A kind of single-screw expander of integrated guiding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710824254.9A CN107461222A (en) | 2017-09-13 | 2017-09-13 | A kind of single-screw expander of integrated guiding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107461222A true CN107461222A (en) | 2017-12-12 |
Family
ID=60551529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710824254.9A Withdrawn CN107461222A (en) | 2017-09-13 | 2017-09-13 | A kind of single-screw expander of integrated guiding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107461222A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203867621U (en) * | 2014-05-29 | 2014-10-08 | 扬州大学 | Power adjustable single screw rod expansion machine |
| CN105247217A (en) * | 2013-05-30 | 2016-01-13 | 三菱电机株式会社 | Powered blending container |
| CN106605069A (en) * | 2014-09-24 | 2017-04-26 | 三菱电机株式会社 | Screw compressor and refrigeration cycle device |
| WO2017149659A1 (en) * | 2016-03-01 | 2017-09-08 | 三菱電機株式会社 | Screw compressor and refrigeration cycle device |
| CN207161146U (en) * | 2017-09-13 | 2018-03-30 | 北京工业大学 | A kind of single-screw expander of integrated guiding valve |
-
2017
- 2017-09-13 CN CN201710824254.9A patent/CN107461222A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105247217A (en) * | 2013-05-30 | 2016-01-13 | 三菱电机株式会社 | Powered blending container |
| CN203867621U (en) * | 2014-05-29 | 2014-10-08 | 扬州大学 | Power adjustable single screw rod expansion machine |
| CN106605069A (en) * | 2014-09-24 | 2017-04-26 | 三菱电机株式会社 | Screw compressor and refrigeration cycle device |
| WO2017149659A1 (en) * | 2016-03-01 | 2017-09-08 | 三菱電機株式会社 | Screw compressor and refrigeration cycle device |
| CN207161146U (en) * | 2017-09-13 | 2018-03-30 | 北京工业大学 | A kind of single-screw expander of integrated guiding valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171212 |