CN104879271A - Double-screw high-pressure surplus energy recycling device - Google Patents
Double-screw high-pressure surplus energy recycling device Download PDFInfo
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- CN104879271A CN104879271A CN201510187843.1A CN201510187843A CN104879271A CN 104879271 A CN104879271 A CN 104879271A CN 201510187843 A CN201510187843 A CN 201510187843A CN 104879271 A CN104879271 A CN 104879271A
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- screw
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
- F03C2/00—Rotary-piston engines
- F03C2/08—Rotary-piston engines of intermeshing-engagement type, i.e. with engagement of co- operating members similar to that of toothed gearing
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- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a double-screw high-pressure surplus energy recycling device which comprises a device housing, a rear end cover, a front end cover, a bushing, a drive screw, a driven screw, a drive friction wheel, a driven friction wheel, a bearing block and a mechanical seal cover, wherein the bushing is arranged inside the device housing, one end of the device housing is connected with the rear end cover, one end of the bushing inside the device housing is connected at the inner side of the front end cover, the outer side of the front end cover is connected with one side of the bearing block, the mechanical seal cover is arranged inside the bearing block, and the drive screw and the driven screw are arranged inside the bushing. Compared with a common multi-stage centrifugal hydraulic turbine, the double-screw high-pressure surplus energy recycling device has the high energy recovery rate, and meanwhile has the advantages of being stable in medium transmission, weak inn pressure pulsation, small in mechanical vibration, low in noise, high in rotation speed, small in flow and continuous in work.
Description
Technical field
The invention belongs to mechanical field, relate to the device utilizing working medium pressure energy to carry out energy regenerating, particularly a kind of twin-screw high pressure complementary energy recovery device.
Background technique
Energy regenerating is the form of energy that will slattern that can not store recycling, and such as heat energy, mechanical energy, luminous energy etc. are converted into electrical power storage and get up to recycle.
Nowadays industrial production mesohigh waste water and waste liquid is not fully utilized and is just drained, its energy cannot be fully used, if collected by these energy energy recycle devices, both saved the energy and decreased discharge, these energy also can bring more use value.
The device of energy regenerating is carried out for the existing working medium pressure energy that utilizes, as: water turbine, steam turbine, pump does hydraulic turbine, to the suction parameter of working medium, there is particular requirement, a kind of twin-screw high pressure complementary energy recovery device of the present invention, requires that working medium is the highly pressurised liquid that high pressure water etc. has different viscosity equally, and allows containing a small amount of solid magazine particle.
Twin-screw high pressure complementary energy recovery device utilizes highly pressurised liquid to the pressure on tooth shape of screw surface, thus lead-screw rotates.Special construction because of screw rod makes twin-screw high pressure complementary energy recovery device have, and fed sheet of a media is steady, pressure pulsation is faint, mechanical vibration are little, noise is low, have the ability to work of higher rotation speed, to features such as the viscosity of working medium is insensitive, simple and compact for structure, boundary dimension is less, lighter weight, efficiency are high, reliable operation, life-span length and Operation and maintenance convenience.Integrate these advantages, this is that common multistage centrifugal pump and multistage centrifugal turbine cannot be accomplished.Therefore twin-screw high pressure complementary energy recovery device has very large Research Significance.
For energy regenerating machinery, efficiency weighs the important parameter of its quality, therefore optimizes object to energy regenerating machinery and be just to improve its energy recovery efficiency.For twin-screw high pressure complementary energy recovery device a kind of in the present invention, improve the optimization that its energy recovery efficiency key is screw rod line style, the screw rod of this kind of line style is low to the sensitivity of impurity when working, and has suitable reliability, is suitable for this twin-screw high pressure complementary energy recovery device.
Summary of the invention
In order to be made full use of by the high pressure waste water waste liquid in industrial production, the present invention proposes a kind of twin-screw high pressure complementary energy recovery device, the pressure energy in high pressure water can be converted into generator electric energy by this device, has both saved the energy and has additionally reduced discharge.This device is promoted the use of, huge economic benefit will be brought.
In order to achieve the above object, technological scheme of the present invention is as follows:
A kind of twin-screw high pressure complementary energy recovery device, comprises crust of the device, rear end cover, front cover, lining, initiatively screw rod, driven screw, active friction wheel, driven friction wheel, bearing support, machine capping;
Described crust of the device one end connects rear end cover, and the described crust of the device the other end connects inside front cover, coupling shaft bearing side outside described front cover, and described bearing support inside is provided with machine capping;
Described crust of the device inside is provided with lining, it is also overall together with lining interference fit that described crust of the device internal welding is connected to dividing plate, cavity between lining and crust of the device is divided into disconnected first cavity, the second cavity mutually by described dividing plate, the crust of the device at described first cavity place has entrance cavity, described entrance cavity adpting flange forms the high pressure entry of whole device, the crust of the device at described second cavity place has outlet plenum, and described outlet plenum adpting flange forms the low tension outlet of whole device; Described lining side has working medium entrance, and described lining opposite side has sender property outlet, and described working medium entrance is connected with the first cavity, and described sender property outlet is connected with the second cavity;
Described bush inside is provided with initiatively screw rod, driven screw; The helical tooth of described active screw rod, driven screw is meshed, and contacts with each other between helicoid, and described lining respectively and active screw rod, there is minimum clearance between driven screw;
Described active screw spiral direction is dextrorotation, spiral head number is two, described active screw rod one end passes from the centre of front cover, bearing support, machine capping successively, and is connected by key with generator, and the other end of described active screw rod connects active friction wheel by key; Described driven screw Hand of spiral is left-handed, and spiral head number is three, and described driven screw is connected with driven friction wheel near one end of active friction wheel, and described driven friction wheel and active friction wheel be intermeshing a pair gear each other.
Further, sandwiched first sealing gasket between described rear end cover and crust of the device, and be fastened by bolts; Described lining, respectively sandwiched second sealing gasket, the 3rd sealing gasket between crust of the device and front cover, and be fastened by bolts; Described machine capping overcoat has bearing support and is all fastened by bolts on front cover.
Further, lubricant oil is contained, for the lubrication of inner active friction wheel, driven friction wheel in described rear end cover inside.
Further, described in be positioned at the active screw rod of crust of the device, the both sides of driven screw are all processed with equalizing piston, and between equalizing piston and lining all cover have seal ring and sliding bearing.
Further, the working medium entrance on described lining and sender property outlet are four square notch.
Further, described lining and the minimum clearance initiatively between screw rod, driven screw are 0.1cm.
Further, spacer is provided with between described active screw rod and front cover, the described screw rod end being positioned at active screw rod outside front cover is connected with mechanical seal, and described machine capping covers mechanical seal and with hexagonal cylindrical head screw fastening on front cover, and sandwiched sealing gasket therebetween.
Further, the described screw rod end cover being positioned at the active screw rod of machine closure skirt has double row angular contact bearing, the side of described double row angular contact bearing coordinates lock washer to be fixed by round nut, the outside of described bearing support by hexagon head bolt coupling shaft bearing front cover, and has bearing support and double row angular contact bearing to form interference fit.
Further, described active friction wheel end coordinates lock washer to be fixed by round nut; Equally, described driven friction wheel end coordinates lock washer to be fixed by round nut.
Further, the lead angle of described active screw rod, driven screw should make lead of screw meet relation T/R=0.5-1.25, and wherein T is lead of screw, and R is screw sections helical-type line Outside radius.This improvement makes active screw rod of the present invention, the helicoid of driven screw contacts with each other, and has larger volumetric efficiency.The present invention is for the entrance working medium of different parameters, and the screw rod of replaceable different lead to adapt to entrance different pressures, thus obtains best volumetric efficiency, and make entrance reach maximum with outlet pressure reduction, now the energy of highly pressurised liquid is fully changed.In theory, ingress hydraulic pressure is larger, and the helical pitch of screw rod should be less, and helical pitch number should be more, and spiro rod length should be longer.But because spiro rod length is large, the amount of deflection of generation is also large, for the operating mode of higher inlet pressure, less span should be adopted, but want the helical pitch of screw rod less, certainly will will reduce lead angle, therefore under rational spiro rod length, reduce lead angle, thus adapt to the entrance condition of elevated pressures.
Advantage of the present invention also have following some:
1. compared with common multistage centrifugal hydraulic turbine, there is higher energy recovery rate.
2. fed sheet of a media is steady, pressure pulsation is faint, mechanical vibration are little, noise is low.
3. have higher rotation speed, flow is little, and work continuously.
4. the viscosity of pair working medium is insensitive, simple and compact for structure, boundary dimension is less, lighter weight.
5. high, the reliable operation of efficiency, the life-span is long and Operation and maintenance are convenient.
6. can use same equipment replacement not threaded come the requirement of satisfied different operating mode.
7. allow in working medium highly pressurised liquid containing a small amount of small diameter impurity particle thing.
Accompanying drawing explanation
Fig. 1 is the overall top plan view of twin-screw high pressure complementary energy recovery device.
Fig. 2 is initiatively screw rod and driven screw cross section molded line and mesh schematic representation.
Fig. 3 is twin-screw high pressure complementary energy recovery device lining sectional structure chart.
Fig. 4 is lining E-E sectional view.
Fig. 5 is lining F-F sectional view.
Fig. 6 is twin-screw high pressure complementary energy recovery device outer casing construction drawing.
Fig. 7 is the total outline drawing of twin-screw high pressure complementary energy recovery device.
In figure: 1-crust of the device, 2-lining, 3-first sealing gasket, 4-hexagon head bolt, 5-lubricant oil, 6-is screw rod initiatively, 7-rear end cover, 8-active friction wheel, the driven friction wheel of 9-, 10-round nut, 11-round nut lock washer, 12-driven screw, sliding bearing after 13-, 14-second sealing gasket, 15-the 3rd sealing gasket, 16-hexagon socket cap head screw, 17-front cover, 18-sealing gasket, 19-hexagon head bolt, 20-hexagon socket cap head screw, 21-bearing support, the capping of 22-machine, 23-mechanical seal, 24-double row angular contact bearing, 25-round nut, 26-round nut lock washer, 27-hexagon head bolt, 28-spacer, 29-high pressure entry, 30-low tension outlet, 31-working medium entrance, 32-sender property outlet, 33-dividing plate, 34-first cavity, 35-second cavity.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
Fig. 1 is the overall top plan view of a kind of twin-screw high pressure complementary energy recovery device of the present invention.A kind of twin-screw high pressure complementary energy recovery device, comprise core component initiatively screw rod 6, driven screw 12, the critical piece of device comprises lining 2, crust of the device 1, front cover 17, rear end cover 7, active friction wheel 8 and driven friction wheel 9, bearing support 21, machine capping 22.Rear end cover 7 and crust of the device 1 sandwiched first sealing gasket 3 are also fastening by bolt 4.Lining 2, between crust of the device 1 with front cover 17 same sandwiched second sealing gasket the 14, the 3rd sealing gasket 15 and by bolt 16 fastening.By the side of hexagon head bolt 19 coupling shaft bearing 21 outside described front cover 17, machine capping 22 overcoat has bearing support 21 and is all fastened by bolts on device front cover 17.
As shown in Figure 1-2, initiatively screw rod 6 Hand of spiral is dextrorotation, spiral head number is 2, initiatively screw rod one end of screw rod 6 is passed device front cover 17 centre and is connected with spacer 28, screw rod end outside front cover 17 is connected with mechanical seal 23 for preventing refrigerant leakage, machine capping 22 covers mechanical seal 23 and uses screw fastening on front cover 17, sandwiched sealing gasket therebetween.Machine capping 22 outside screw rod end cover has double row angular contact bearing 24, proximal end round nut 25 coordinates lock washer 26 to make double row angular contact bearing 24 on active screw rod 6 keep fixing, the outside of described bearing support 21 is by hexagon head bolt 27 connecting lid, and have bearing support 21 and double row angular contact bearing 24 to form interference fit, and machine capping 22 is entangled be fixed by bolts on device front cover 17.The screw rod the other end connects active friction wheel by key, and end round nut 10 coordinates lock washer 11 to be fixed by active friction wheel.
It is left-handed that described driven screw spiral shell 12 revolves direction, spiral head number is 3, lower end is connected with driven friction wheel 9 and active friction wheel 8 intermeshing a pair gear each other that active screw rod is connected, and similarly, end round nut 10 coordinates lock washer 11 to be fixed by driven friction wheel.A whole set of screw rod carrys out transmitting torque by intermeshing master and slave friction wheel, but not by screw rod, thus reduce surface friction drag, also prevent the lead angle because screw rod is less from producing locking phenomenon.The screw serrated form of described active screw rod 6, driven screw 12 meets the theory of engagement, contact with each other between helicoid, thus the working medium of entrance and outlet is separated, add initiatively screw rod 6, the Hand of spiral of driven screw 12 and the restriction of spiral head number, be conducive to pressure difference (pressure difference from second cavity 35 to low pressure area of the first cavity 34 of zone of high pressure) and reach maximum, be conducive to pressure energy fully to transform, make volumetric efficiency higher, and then improve energy recovery efficiency.
As in Figure 3-5, lining 2 structure on two sides has 4 square notch, respectively as working medium entrance 31 and sender property outlet 32, minimum clearance 0.1cm is there is in theory between lining 2 and initiatively screw rod, driven screw, this is minimum clearance when working medium is high pressure water, do other working medium when changing, according to working medium physical parameter, its minimum clearance has respective change.But for improving device volumetric efficiency, select minimum clearance to be advisable.
As shown in figures 1 to 6, dividing plate 33 is welded with in the middle part of crust of the device 1, crust of the device 1 is together with lining 2 interference fit, cavity between lining 2 and crust of the device 1 is divided into disconnected two cavitys mutually by intermediate clapboard 33, i.e. the first cavity 34 and the second cavity 35, they are connected with sender property outlet 32 with working medium entrance 31 on lining 2 respectively.Crust of the device 1 entrance cavity position upper opening adpting flange is as the high pressure entry 29 of whole device, and outlet plenum position avris opening adpting flange is as the low tension outlet 30 of whole device.The configuration of above-mentioned high pressure entry 29 and low tension outlet 30 can reduce hydraulic loss greatly.
Containing lubricant oil in described rear end cover 7, for the lubrication of inner active friction wheel 8, driven friction wheel 9.
The upper equalizing piston of described driven screw 12 and and overlap between the active screw rod 6 of its corresponding position and lining and have seal ring, and sliding bearing is set, name front slide bearing.
Overlap between the lower equalizing piston of described active screw rod 6, driven screw 12 and lining and have seal ring, and sliding bearing is set, sliding bearing 13 after name.
As shown in Figure 7, be schematic diagram that twin-screw high pressure complementary energy recovery device of the present invention is connected with generator.
Working procedure of the present invention is: before plant running, inside first need be full of working medium, initiatively screw rod 6 one end connects generator, open high pressure entry 29, low tension outlet 30 respectively, after high-pressure working medium flows into the first cavity 34 from the suction flange of high pressure entry 29, inflow lining 2 promotes twin-screw acting, flows out after flowing through whole bush inside space after lining sender property outlet 32 flows into the second cavity 35 from low tension outlet 30.Twin-screw maintains twin-screw synchronous axial system by active friction wheel 8, driven friction wheel 9 transmitting torque, initiatively the generating of screw rod 6 High Rotation Speed drive electrical generators.
The each part of device is installed and is described in detail in summary of the invention.
Its erection sequence is preferably:
1. crust of the device and lining are first installed, and it should be noted that and will ensure entrance cavity and snout cavity unconnectedness between shell and lining.
2. driving and driven friction wheel is installed successively, uses fastening nuts.
3. screw rod, up and down equalizing piston end seal ring and slide anteroposterior bearing are installed again.
4. erecting device rear end cover, with bolt, itself and crust of the device is fastening.
5. front cover, initiatively screw rod spacer, mechanical seal are installed, machine are sealed cover screw and is fixed on front cover.
6. after, angular contact bearing is installed to initiatively on screw rod, fixes its position with nut and in addition fastening, by bearing support spiral shell
Bolt is fixed on device front shroud.
Should understand above-mentioned example of executing only to be not used in for illustration of the present invention and to limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Claims (10)
1. a twin-screw high pressure complementary energy recovery device, it is characterized in that, comprise crust of the device (1), rear end cover (7), front cover (17), lining (2), initiatively screw rod (6), driven screw (12), active friction wheel (8), driven friction wheel (9), bearing support (21), machine capping (22);
Described crust of the device (1) one end connects rear end cover (7), described crust of the device (1) the other end connects front cover (17) inner side, coupling shaft bearing (21) side, described front cover (17) outside, described bearing support (21) inside is provided with machine capping (22):
Described crust of the device (1) inside is provided with lining (2), described crust of the device (1) internal welding is connected to dividing plate (33) and overall together with lining (2) interference fit, cavity between lining (2) and crust of the device (1) is divided into disconnected first cavity (34) mutually by described dividing plate (33), second cavity (35), the crust of the device (1) at described first cavity (34) place has entrance cavity, described entrance cavity adpting flange forms the high pressure entry (29) of whole device, the crust of the device (1) at described second cavity (35) place has outlet plenum, described outlet plenum adpting flange forms the low tension outlet (30) of whole device, described lining (2) side has working medium entrance (31), described lining (2) opposite side has sender property outlet (32), described working medium entrance (31) is connected with the first cavity (34), and described sender property outlet (32) is connected with the second cavity (35),
Described lining (2) inside is provided with initiatively screw rod (6), driven screw (12); The helical tooth of described active screw rod (6), driven screw (12) is meshed, contact with each other between helicoid, described lining (2) respectively and active screw rod (6), driven screw there is minimum clearance between (12);
Described active screw rod (6) Hand of spiral is dextrorotation, spiral head number is two, described active screw rod (6) one end passes from the centre of front cover (17), bearing support (21), machine capping (22) successively, and be connected by key with generator, the other end of described active screw rod (6) connects active friction wheel (8) by key; Described driven screw (12) Hand of spiral is left-handed, spiral head number is three, described driven screw (12) is connected with driven friction wheel (9) near one end of active friction wheel (8), described driven friction wheel (9) and active friction wheel (8) intermeshing a pair gear each other.
2. twin-screw high pressure complementary energy recovery device according to claim 1, is characterized in that, sandwiched first sealing gasket (3) between described rear end cover (7) and crust of the device (1), and fastening by bolt (4); Described lining (2), respectively sandwiched second sealing gasket (14), the 3rd sealing gasket (15) between crust of the device (1) and front cover (17), and fastening by bolt (16); Described machine capping (22) overcoat has bearing support (21) and is all fastened by bolts on front cover (17).
3. twin-screw high pressure complementary energy recovery device according to claim 1, is characterized in that, lubricant oil is contained, for the lubrication of inner active friction wheel (8), driven friction wheel (9) in described rear end cover (7) inside.
4. twin-screw high pressure complementary energy recovery device according to claim 1, it is characterized in that, describedly be positioned at the active screw rod (6) of crust of the device (1), the both sides of driven screw (12) are all processed with equalizing piston, and all overlap between equalizing piston and lining (2) and have seal ring and sliding bearing (13).
5. twin-screw high pressure complementary energy recovery device according to claim 1, is characterized in that, the working medium entrance (31) on described lining (2) and sender property outlet (32) are four square notch.
6. twin-screw high pressure complementary energy recovery device according to claim 1, is characterized in that, described lining (2) and the minimum clearance initiatively between screw rod (6), driven screw (12) are 0.1cm.
7. twin-screw high pressure complementary energy recovery device according to claim 1, it is characterized in that, spacer (28) is provided with between described active screw rod (6) and front cover (17), the described screw rod end being positioned at the active screw rod (6) in front cover (17) outside is connected with mechanical seal (23), described machine capping (22) covers mechanical seal (23) and is fastened on front cover (17) with hexagon socket cap head screw (20), and sandwiched sealing gasket (18) therebetween.
8. twin-screw high pressure complementary energy recovery device according to claim 1, it is characterized in that, the described screw rod end cover being positioned at the active screw rod (6) in machine capping (22) outside has double row angular contact bearing (24), the side of described double row angular contact bearing (24) coordinates lock washer (26) to be fixed by round nut (25), the outside of described bearing support (21) by hexagon head bolt (27) coupling shaft bearing front cover, and has bearing support (21) and double row angular contact bearing (24) to form interference fit.
9. twin-screw high pressure complementary energy recovery device according to claim 1, is characterized in that, described active friction wheel (8) end coordinates lock washer (11) to be fixed by round nut (10); Equally, described driven friction wheel (9) end coordinates lock washer (11) to be fixed by round nut (10).
10. twin-screw high pressure complementary energy recovery device according to claim 1, it is characterized in that, the lead angle of described active screw rod (6), driven screw (12) should make lead of screw meet relation T/R=0.5-1.25, wherein T is lead of screw, and R is screw sections helical-type line Outside radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187843.1A CN104879271A (en) | 2015-04-20 | 2015-04-20 | Double-screw high-pressure surplus energy recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187843.1A CN104879271A (en) | 2015-04-20 | 2015-04-20 | Double-screw high-pressure surplus energy recycling device |
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| Publication Number | Publication Date |
|---|---|
| CN104879271A true CN104879271A (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510187843.1A Pending CN104879271A (en) | 2015-04-20 | 2015-04-20 | Double-screw high-pressure surplus energy recycling device |
Country Status (1)
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| CN (1) | CN104879271A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107594A (en) * | 2019-04-22 | 2019-08-09 | 江苏大学 | A kind of electromagnetic bearing twin-screw hydraulic turbine |
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| US20080085207A1 (en) * | 2006-10-10 | 2008-04-10 | Dieter Mosemann | Oil-flooded screw compressor with axial-thrust balancing device |
| CN101818656A (en) * | 2009-02-26 | 2010-09-01 | 赵育基 | Balance type screw expansion power machine |
| CN102003214A (en) * | 2010-12-14 | 2011-04-06 | 范年宝 | Novel screw expanding power machine |
| CN202100452U (en) * | 2011-06-07 | 2012-01-04 | 江西新龙泵业科技制造有限公司 | Single-suction double-screw pump |
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2015
- 2015-04-20 CN CN201510187843.1A patent/CN104879271A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2541606Y (en) * | 2002-03-25 | 2003-03-26 | 胡亮光 | Screw stem expension power machine |
| US20080085207A1 (en) * | 2006-10-10 | 2008-04-10 | Dieter Mosemann | Oil-flooded screw compressor with axial-thrust balancing device |
| CN101818656A (en) * | 2009-02-26 | 2010-09-01 | 赵育基 | Balance type screw expansion power machine |
| CN102003214A (en) * | 2010-12-14 | 2011-04-06 | 范年宝 | Novel screw expanding power machine |
| CN202100452U (en) * | 2011-06-07 | 2012-01-04 | 江西新龙泵业科技制造有限公司 | Single-suction double-screw pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110107594A (en) * | 2019-04-22 | 2019-08-09 | 江苏大学 | A kind of electromagnetic bearing twin-screw hydraulic turbine |
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Application publication date: 20150902 |