CN206054005U - Balanced type twin-screw expander - Google Patents
Balanced type twin-screw expander Download PDFInfo
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- CN206054005U CN206054005U CN201620946678.3U CN201620946678U CN206054005U CN 206054005 U CN206054005 U CN 206054005U CN 201620946678 U CN201620946678 U CN 201620946678U CN 206054005 U CN206054005 U CN 206054005U
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- Prior art keywords
- air inlet
- screw
- working chamber
- rotor
- yin
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Abstract
This utility model patent discloses a kind of balanced type twin-screw expander, expand machine host using by left side air inlet seat, left side working chamber, in the five-part form structure that constitutes every portion, right side working chamber, right side air inlet seat.High temperature and high pressure gas are entered by the air inlet threeway in being arranged in the portion and distinguish equivalent into left and right sides air inlet seat, when high temperature and high pressure gas are through left and right side working chamber, the intermeshing negative and positive rotor of the intracavity that pushes the work forward is rotated, and then drive the running of the equipment such as electromotor, this process to be referred to as the expansion process of gas by shaft coupling.The air vent of gas after expansion respectively therefrom in the portion is discharged, due to left and right work intracavity yin, yang rotor in opposite directions arrangement and make the axial load of rotor equal in magnitude, in opposite direction, it is zero to be capable of achieving each support member axially loaded in theory.So that support member and overall dimensions reduce more than 1/3rd；Reduce support member rate of breakdown more than half；More than one times of raising non-failure operation time, greatly improve productivity effect.
Description
Technical field
This utility model patent is related to a kind of improved twin-screw expander, especially a kind of balanced type twin screw expansion
Machine.
Background technology
With the fast development of industry, energy and environment problem is of increasing concern, the waste heat that produces in commercial production, useless
The secondary energy sources such as heat and restriction loss almost spread over each power consumption industry, and screw expander turns as a kind of new green energy
Change planes and be widely used in the industrial gas process engineering of each power consumption, steam with decompression engineering, the energy regenerating of various gases
The practical matters such as engineering, generation engineering.All of screw expander is all single suction unbalanced in the market, using single
Work intracavity a pair of negative and positive rotors of configured in parallel.Working media is entered from one end, single working method and work that the other end is discharged
Make structure, this structure causes rotor and supporting construction single load bearing so that supporting construction non-failure operation time reduces outer, together
When exhaust seat is ultimately applied to due to axial force, and then act on whole body, body will be had a strong impact under huge discharge operating mode
Fixation, so as to produce larger vibration and noise.
The content of the invention
The purpose of this utility model is to provide a kind of balanced type twin-screw expander, and the decompressor is scientific and reasonable for structure,
Long service life, stable, noise and vibration is little, is easy to maintenance, high financial profit.
The technical solution of the utility model is：A kind of balanced type twin-screw expander, decompressor body adopt both sides air-breathing
Middle part aerofluxuss five-part form layout integrated model, five-part form overall structure include right side air inlet seat, right side working chamber, in every
Portion, left side working chamber, five part of left side air inlet seat；The overall structure of the decompressor includes shaft coupling, small end cover, lip packing
Circle, forward and backward end cap, left and right side air inlet seat, radial positioning bearing, right side yin, yang rotor, left and right side working chamber, axially position
Bearing, in every portion, left side yin, yang rotor, synchromesh gear.Left and right working chamber be symmetrically connected to by bolt in every portion both sides, together
When left and right side air inlet seat, be bolted with left and right side working chamber respectively, in the working chamber of left side, a pair of phases of configured in parallel
The left side yin, yang rotor for mutually engaging, in the working chamber of right side, a pair intermeshing right side yin, yang rotors of configured in parallel, two works
Make corresponding negative and positive rotor size in chamber, shape identical, oppositely oriented, right side male rotor shaft extension goes out the axle journal of right side air inlet seat and leads to
Cross shaft coupling to be connected with electromotor；In each portion be provided with air inlet threeway and exhaust flange, air inlet threeway by air inlet pipe with it is left and right
Air inlet connection in the air inlet seat of side, is designed with during in two working chambers, gas separates in air inlet threeway and exhaust flange
Dividing plate.
Negative and positive rotor mandrel is provided with helixseal.
Decompressor body adopts all-in-one-piece structure.
Yin, yang armature spindle is using two-part and axle and screw-casing are the version of individual part, and its axle is by spline company
A major axis is connected into, left and right screw-casing is respectively fixedly connected with left and right axle by positioning key, clamp nut.
Yin, yang armature spindle is using Y-axis integral type and left and right screw-casing is the version of individual part；Left and right spiral shell
Rotation set is respectively fixedly connected with the arranged on left and right sides in bearing by positioning key, clamp nut.
Yin, yang armature spindle is using two-part and axle and screw-casing are the version of non-individual part, and left and right armature spindle leads to
Cross spline connection integral.
The utility model has the advantage of：As this utility model is arranged in opposite directions using double working-chamber, two work intracavity
Rotor size shape is identical, oppositely oriented；Air inlet is respectively arranged in left and right air inlet seat, air vent be located in every portion and by
Dividing plate every being divided into two air vents respectively for left and right side working chamber aerofluxuss, special construction；Its axial load is caused to be realized real
Cancelling out each other in meaning and balance i.e. axial load be zero show uniqueness advantages characteristic.Its advantages characteristic is at least
Three, one is to eliminate negative and positive rotor axial play, significantly improves the stress of core component and support member, and makes support member
And integrally-built overall dimensions will reduce more than 1/3rd；Two is to reduce support member temperature rise, reduces work noise, and raising makes
With the life-span and the rate of breakdown of support member is made to reduce by more than 50；Three is to extend maintenance cycle, improves work efficiency and makes nothing
More than one times of failure operation time.Productivity effect can have and greatly improve.
Every portion's structure in being adopted due to this utility model, two working chambers are cleverly separated, two working chamber realities have been made
Show without collaborating, greatly reduced gas and disturb vibration and noise；Simultaneously because the invention adopts double suction structure, axial load is zero,
Rotor axial string can be eliminated to shake and noise.Therefore, operate steadily, vibrate and noise to be obviously reduced be one of its feature.
This utility model, according to different working conditions, is that negative and positive rotor sets three kinds of organization plans.Can both solve the moon,
The problem of male rotor processing technology difference, also can scientifically select the version of yin, yang rotor according to different duty requirements.
（1）Armature spindle is using two-part and axle and screw-casing are the version of individual part.Its axle is surely square by spline
To a major axis is connected into, left and right spirillum is respectively fixedly connected with left and right axle by positioning key, clamp nut.The spiral shell of this kind of structure
Bar can realize the processing respectively of axle and screw-casing, and its processing technique is obviously improved, processing more targeted and motility, together
When be also beneficial to realize repair and replacement pattern, but, for the rotor of this structure, axial force mainly loads on the end of screw-casing
Face, when load is larger, for the axially position of screw-casing adopts shaft shoulder positioning mode.
（2）Armature spindle is using Y-axis integral type and left and right screw-casing is the version of individual part.Left and right spiral
Set is respectively fixedly connected with the arranged on left and right sides in bearing by positioning key, clamp nut.This structure is compared difference with former structure and is existed
It is integrated in mandrel, its defect is：For the major axis of huge discharge high pressure ratio compressor, processing technology is deteriorated；For float
The mandrel for measuring little pressure ratio compressor can be so that the physical dimension of its intermediate supports cannot be reduced to preferable size.
（3）Armature spindle is using two-part and axle and screw-casing are the version of non-individual part.Left and right armature spindle passes through
Spline is determined direction and is linked into an integrated entity.The advantage of this structure is that processing technology is preferable, has the disadvantage the cost of bearing repair and replacement
It is higher.
Description of the drawings
Fig. 1 is the first organization plan front view of screw rod in this utility model；
Fig. 2 is the first organization plan axial direction semi-cutaway of screw rod in this utility model；
Fig. 3 is the first organization plan A-A sectional views of screw rod in this utility model；
Fig. 4 is second organization plan front view of screw rod in this utility model；
Fig. 5 is second organization plan axial direction semi-cutaway of screw rod in this utility model；
Fig. 6 is the third organization plan front view of screw rod in this utility model；
Fig. 7 is the third organization plan B-B sectional views of screw rod in this utility model；
Fig. 8 is shape assumption diagram of the present utility model；
Fig. 9 is section of structure of the present utility model；
Figure 10 be it is of the present utility model in every portion structure chart；
In figure：1- shaft couplings, 2- small end covers, 3- lip-type packings, 4- drive end bearing brackets, air inlet seat on the right side of 5-, 6- radial positionings
Bearing, 7- helixseals, female rotor on the right side of 8-, male rotor on the right side of 9-, working chamber on the right side of 10-, 11- air vents, 12- air inlet pipe,
13- axially position bearings, 14- splines, in 15- on the left of the portion, 16- male rotor, female rotor on the left of 17-, working chamber on the left of 18-,
Air inlet seat on the left of 19-, 20- synchromesh gears, 21- rear end caps, 22- median septums, 23- air inlet threeways, 24- exhaust flanges, 25- left ends
Driven shaft, 26- left end driving shafts, 27- right-hand member driving shafts, 28- right-hand member driven shafts, 29- radial positioning keys, 30- screw-casings, 30a-
Male rotor screw-casing, 30b- female rotor screw-casings, 31- clamp nuts, 32- splines, 33- driving shafts, 34- screw-casings, 34a- are positive
Rotor helical-screw set, 34b- female rotor screw-casings, 35- driven shafts, 36- clamp nuts, 37- radial positioning keys.
Specific embodiment
This utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.Following examples are only
Only it is used for preferably introducing this utility model, is not limited to protection domain of the present utility model.
Example 1：A kind of balanced type twin-screw expander, it includes shaft coupling 1, small end cover 2, lip-type packing 3, drive end bearing bracket
4, right side air inlet seat 5, radial positioning bearing 6, helixseal 7, right side female rotor 8, right side male rotor 9, right side working chamber 10, row
QI KOU 11, air inlet pipe 12, axially position bearing 13, spline 14, in every portion 15, left side male rotor 16, left side female rotor 17, left side
Working chamber 18, left side air inlet seat 19, synchromesh gear 20, rear end cap 21, median septum 22, air inlet threeway 23, exhaust flange 24.
The composition of the present embodiment is：Decompressor body adopt five-part form structure, every portion 15 in being provided with the middle of which, in portion
Be provided with air inlet threeway 23 and exhaust flange 24, air inlet threeway 23 by two air inlet pipe 12 respectively with left side air inlet seat 19 and right side
Air inlet connection in air inlet seat 5, left side working chamber 18 and right side working chamber 10 be connected to by bolt in every portion 15
Both sides, right side air inlet seat 5 are bolted on the working chamber 10 of right side, and left side air inlet seat 19 is bolted on left side work
Make on chamber 18, a pair intermeshing left side female rotors 17 of configured in parallel and left side male rotor 16 in left side working chamber 18, it is left
The axle left end of side female rotor 17 and left side male rotor 16 is fixed in the air inlet seat 19 of left side, and at which by radial positioning bearing 6
Mandrel of the left side at the air inlet seat is provided with helixseal 7, its right-hand member be fixed on by axially position bearing in portion 15,
A pair intermeshing right side female rotors 8 of configured in parallel and right side male rotor 9 in right side working chamber 10.Right side yin, yang rotor
8th, 9 axle right-hand member is fixed in the air inlet seat of right side by radial positioning bearing 6, and on the right side of which on the mandrel at air inlet seat
Helixseal 7 is provided with, its left end is connected with left side yin, yang rotor 17,16 respectively by spline 14.A pair of synchromesh gears 20 are distinguished
It is fixed on the left part of left side 16 axle of female rotor 17 and left side male rotor.Right side male rotor 9 is connected with electromotor by shaft coupling 1
Connect.Rear end cap 21 is fixed in the air inlet seat 19 of left side, and drive end bearing bracket 4 is fixed in the air inlet seat 5 of right side, and small end cover 2 is fixed on front end
On lid 4, be provided with small end cover 2 and drive end bearing bracket 4 3. small end cover 2 of lip-type packing, right side air inlet seat 5, right side working chamber 10,
In in portion 15, left side working chamber 18, left side air inlet seat 19, the rear end cap 21 between two two junctions except process it is smooth in addition to be additionally provided with it is close
Seal structure.
Example 2：A kind of balanced type twin-screw expander, it includes shaft coupling 1, small end cover 2, lip-type packing 3, drive end bearing bracket
4, right side air inlet seat 5, radial positioning bearing 6, helixseal 7, right side working chamber 10, air vent 11, air inlet pipe 12, axially position
Bearing 13, spline 14, in every portion 15, left side working chamber 18, left side air inlet seat 19, synchromesh gear, 20, rear end cap 21, median septum
22, air inlet threeway 23, exhaust flange 24, left end driven shaft 25, left end driving shaft 26, right-hand member driving shaft 27, right-hand member driven shaft 28,
Radial positioning key 29, screw-casing 30, male rotor screw-casing 30a, female rotor screw-casing 30b, clamp nut 31, spline 32.
The composition of the present embodiment is：Big portion's structure and assembly relation are identical with example 1, and wherein difference is that negative and positive turn
The structure composition of son, in this example, left side driving shaft 26 and right side driving shaft 27 are connected as a long driving shaft by spline 32, left
Side driven shaft 25 and right side driven shaft 28 are connected as a long driven shaft by spline 32, and screw-casing 30 passes through 29 He of radial positioning key
Clamp nut 31 is separately fixed at long driving shaft both sides and long driven shaft both sides.Wherein 30 points of male rotor screw-casing 30a of screw-casing
With female rotor screw-casing 30b, and its left and right correspondence screw-casing shape size is identical, oppositely oriented.
Example 3：A kind of balanced type twin-screw expander, it includes shaft coupling 1, small end cover 2, lip-type packing 3, drive end bearing bracket
4, right side air inlet seat 5, radial positioning bearing 6, helixseal 7, right side working chamber 10, air vent 11, air inlet pipe 12, axially position
Bearing 13, spline 14, in every portion 15, left side working chamber 18, left side air inlet seat 19, synchromesh gear, 20, rear end cap 21, median septum
22, air inlet threeway 23, exhaust flange 24, driving shaft 33, screw-casing 34, male rotor screw-casing 34a, female rotor screw-casing 34b, from
Moving axis 35, clamp nut 36, radial positioning key 37.
The composition of the present embodiment is：Most of structure and assembly relation are identical with example 1, and wherein difference is negative and positive
The structure composition of rotor, screw-casing 34 passes through radial positioning key 37 and clamp nut 36 is separately fixed at driving shaft 33 in this example
Both sides and driven shaft 35 both sides, wherein screw-casing point male rotor screw-casing 34a and female rotor screw-casing 34b, its left and right are right
The screw-casing shape size answered is identical, oppositely oriented.
Claims (6)
1. a kind of balanced type twin-screw expander, it is characterised in that：Five sections using aerofluxuss in the middle part of the air-breathing of both sides of decompressor body
The integrated model of formula layout, five-part form overall structure include right side air inlet seat（5）, right side working chamber（10）, in every portion（15）, it is left
Side working chamber（18）, left side air inlet seat（19）Five parts；The overall structure of the decompressor includes shaft coupling（1）, small end cover（2）,
Lip-type packing（3）, forward and backward end cap（4、21）, left and right side air inlet seat（19、5）, radial positioning bearing（6）, right side yin, yang turn
Son（8、9）, left and right side working chamber（18、10）, axially position bearing（13）, in every portion（15）, left side yin, yang rotor（17、
16）, synchromesh gear（20）；Left and right working chamber（18th, every portion in 10) being symmetrically connected to by bolt（15）Both sides, while left and right
Side air inlet seat（19、5）, respectively with left and right side working chamber（18、10）It is bolted, in left side working chamber（18）In, it is parallel
Configure a pair intermeshing left side yin, yang rotors（17、16）, in right side working chamber（10）In, configured in parallel is mutually nibbled for a pair
The right side yin, yang rotor of conjunction（8、9）, in two working chambers, corresponding negative and positive rotor size, shape are identical, oppositely oriented, right side sun
Rotor (9) shaft extension goes out right side air inlet seat（5）Axle journal pass through shaft coupling（1）It is connected with electromotor；In each portion be provided with air inlet three
It is logical（23）And exhaust flange（24）, air inlet threeway（23）By air inlet pipe（12）With left and right side air inlet seat（19、5）On air inlet
Mouth connection, in air inlet threeway（23）And exhaust flange（24）The median septum that gas in two working chambers is separated is designed with inside
（22）.
2. according to the balanced type twin-screw expander described in claim 1, it is characterised in that：Negative and positive rotor mandrel is provided with spiral
Sealing（7）.
3. according to the balanced type twin-screw expander described in claim 1, it is characterised in that：Decompressor body is using all-in-one-piece
Structure.
4. according to the balanced type twin-screw expander described in claim 1 or 2, it is characterised in that：Yin, yang armature spindle adopts two sections
Formula and axle and the version that screw-casing is individual part, by spline connection into a major axis, left and right screw-casing is by fixed for its axle
Position key, clamp nut are respectively fixedly connected with left and right axle.
5. according to the balanced type twin-screw expander described in claim 1 or 2, it is characterised in that：Yin, yang armature spindle is using left and right
Axle integral type and left and right screw-casing are the version of individual part；Left and right screw-casing is distinguished by positioning key, clamp nut
It is connected in the arranged on left and right sides of bearing.
6. according to the balanced type twin-screw expander described in claim 1 or 2, it is characterised in that：Yin, yang armature spindle adopts two sections
Formula and axle and the version that screw-casing is non-individual part, left and right armature spindle are integral by spline connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946678.3U CN206054005U (en) | 2016-08-26 | 2016-08-26 | Balanced type twin-screw expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620946678.3U CN206054005U (en) | 2016-08-26 | 2016-08-26 | Balanced type twin-screw expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206054005U true CN206054005U (en) | 2017-03-29 |
Family
ID=58383204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620946678.3U Expired - Fee Related CN206054005U (en) | 2016-08-26 | 2016-08-26 | Balanced type twin-screw expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206054005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664272A (en) * | 2020-12-23 | 2021-04-16 | 上海柯来浦能源科技有限公司 | Multistage multi-screw hydrogen turbine |
-
2016
- 2016-08-26 CN CN201620946678.3U patent/CN206054005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112664272A (en) * | 2020-12-23 | 2021-04-16 | 上海柯来浦能源科技有限公司 | Multistage multi-screw hydrogen turbine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20170826 |