CN206267875U - The single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled - Google Patents

The single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled Download PDF

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Publication number
CN206267875U
CN206267875U CN201621143176.3U CN201621143176U CN206267875U CN 206267875 U CN206267875 U CN 206267875U CN 201621143176 U CN201621143176 U CN 201621143176U CN 206267875 U CN206267875 U CN 206267875U
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China
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grades
level
male
bearing
rotor
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Withdrawn - After Issue
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CN201621143176.3U
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Chinese (zh)
Inventor
畅云峰
张金权
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Xi'an Qi Tong New Energy Equipment Co Ltd
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Xi'an Qi Tong New Energy Equipment Co Ltd
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Priority to CN201621143176.3U priority Critical patent/CN206267875U/en
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Withdrawn - After Issue legal-status Critical Current
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Abstract

The utility model is related to cogeneration technology field, more particularly to the single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled.The utility model has single-head, twin-stage expansion, simple structure, sealed reliable, efficiency high and high reliability.The technical solution adopted in the utility model includes level body, one-level suction end base, two grades of bodies and two grades of suction end bases, described one-level body and two grades of bodies are hollow shell, the one-level suction end of one-level body is connected with two grades of bodies, the other end of one-level body is provided with one-level body gland, the other end of two grades of bodies is provided with two grades of suction end bases, and two grades of suction end glands one and two grades of suction end glands two are provided with two grades of described suction end bases.

Description

The single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled
Technical field
The present invention relates to cogeneration technology field, more particularly to the single machine two-stage that a kind of pressure energy of natural gas is recycled Dilating screw machine.
Background technology
The natural gas of national gas distributing system maintains pressure higher in pipe conveying procedure, all the time, its pressure one As in 10MPa or so., to major urban pipe networks and industrial user, it is mainly by each for the natural gas transportation of national gas distributing system The voltage regulating station of big city pipe network realizes step-down, is typically reduced to 4.0MPa or so from 10MPa, and the natural gas after step-down is again by each The urban gate station pressure regulation of big city pipe network is transported to terminal user to after 0.4MPa.In the pressure reduction at natural gas pressure regulating station, Can be utilized with huge pressure energy.Current voltage regulating station is the pressure by pressure regulating valve reduction natural gas, and it is wasted Substantial amounts of pressure energy, if can recycle the pressure energy by a kind of mode, will have very big social benefit and warp Ji benefit.
Because the operating pressure of natural gas is high, sealing requirements are strict, forbid leakage, and the intensity requirement of body is high, existing Technology in be difficult to find a kind of applicable dynamic power machine and carry out energy regenerating.And screw expander is a kind of to be driven by gases at high pressure The dynamic power machine of the negative and positive rotor rotation of dynamic screw rod, its core component is a pair intermeshing negative and positive rotors, and its is special interior Portion's structure, determines that screw expander is suitable for the recovery of pressure energy of natural gas and is generated electricity, its be a kind of range of application very The new and high technology that extensive special recovery pressure energy of natural gas is generated electricity.
The content of the invention
, for solution prior art presence because the operating pressure of natural gas is high, sealing requirements are strict, forbid for the present invention Leakage, the intensity requirement of body is high, it is difficult to finding a kind of applicable dynamic power machine carries out asking for energy regenerating in existing technology A kind of topic, there is provided the single machine two-stage dilating screw machine that pressure energy of natural gas is recycled.
To solve the problems, such as prior art, the technical scheme is that:A kind of pressure energy of natural gas is recycled Single machine two-stage dilating screw machine, it is characterised in that:Including one-level body, one-level suction end base, two grades of bodies and two grades of air-breathings End seat, described one-level body and two grades of bodies are hollow shell, and the one-level suction end of one-level body is connected with two grades of bodies, The other end that the other end of one-level body is provided with one-level body two grades of bodies of gland is provided with two grades of suction end bases, described two Two grades of suction end glands one and two grades of suction end glands two are provided with level suction end base;
One-level male rotor and one-level female rotor, described one-level male rotor and one-level female rotor phase are provided with first-level machine body Cylindric to being arranged to, two side axles of one-level male rotor and one-level female rotor are respectively arranged at one-level body and one-level suction end base It is interior, cylinder roller bearing one, one-level dummy piston are disposed with the exhaust side rotating shaft of one-level male rotor, described one-level is put down Weighing apparatus the provided circumferentially about of piston has primary oil cylinder sleeve, and cylinder roller bearing one is provided with the exhaust side rotating shaft of one-level female rotor; One-level labyrinth seal set, cylinder rolling are disposed with the suction side rotating shaft of described one-level male rotor and one-level female rotor respectively Sub- bearing two, single-row contact ball bearing one, single-row contact ball bearing two and stripped nut one, the suction of described one-level male rotor Single-row contact ball bearing three is additionally provided with the rotating shaft of gas side, described single-row contact ball bearing three is arranged at single-row contact ball bearing Two right side, the exhaust side rotating shaft of described one-level labyrinth seal set with one-level male rotor and one-level female rotor realizes that throttling is close Envelope;Cylinder roller bearing two is arranged at the outside of one-level labyrinth seal set, and the outside of cylinder roller bearing two is provided with single-row connecing Touch ball bearing one and single-row contact ball bearing two;Stripped nut one is arranged at the outside of single-row contact ball bearing two;
Two grades of male rotors and two grades of female rotors, two grades of described male rotors and two grades of female rotor phases are provided with two grades of bodies It is cylindric to being arranged to;Two grades of described male rotors and two side axles of two grades of female rotors are respectively arranged at two grades of bodies and two grades of suctions In gas end seat;
Secondary maze sealing shroud, cylindrical roller are respectively arranged with two grades of male rotors and two grades of suction side rotating shafts of female rotor Bearing two, four-point contact ball and stripped nut two, described secondary maze sealing shroud and two grades of male rotors and two grades of the moon Throttling sealing is realized in the suction side rotating shaft of rotor;Cylinder roller bearing two is arranged at the outside of secondary maze sealing shroud, cylinder rolling The outside of sub- bearing two is provided with four-point contact ball;Stripped nut two is arranged at the outside of four-point contact ball, institute Mechanical sealing assembly is additionally provided with the suction side rotating shaft of the two grades of male rotors stated, two grades of sun are additionally provided with two grades of suction end bases Rotor bearing gland, two grades of male rotor bearing glands are arranged at the right side of four-point contact ball, for fixed cylinder Roller Shaft The outer ring of two and four-point contact ball is held, sets fluted on two grades of described excircles of male rotor bearing gland, groove Inside be provided with O-ring seal, be provided with axle envelope installation set on two grades of inner peripherys of male rotor bearing gland, axle envelope installation set it is interior Provided circumferentially about to have axle envelope one, axle envelope one is arranged on axle envelope axle sleeve, and axle envelope axle sleeve is arranged at two grades of suction sides of male rotor and turns On axle, mechanical sealing assembly is provided with the outside of axle envelope axle sleeve, be respectively provided with the exhaust side rotating shaft of described two grades of male rotors There are three, two grades of dummy pistons of cylinder roller bearing, two-level oil cylinder to cover, cylinder rolling is provided with two grades of exhaust side rotating shafts of female rotor Sub- bearing three;Two grades of described dummy pistons and two-level oil cylinder's set are arranged at the outside of cylinder roller bearing three, two-level oil cylinder's set It is arranged on two grades of internal bodies, the suction end roller end of described one-level male rotor and two grades of exhaust end rotating shaft ends of male rotor Portion is connected by coupling assembly;Two grades of suction end glands two, two are provided with the outside of two grades of described male rotor bearing glands Axle envelope two is provided with the inner ring of level suction end gland two.
Described one-level dummy piston is arranged in described primary oil cylinder sleeve, and two grades of described dummy pistons are arranged in institute In the two-level oil cylinder's set stated.
Described coupling assembly is arranged on two grades of outsides of dummy piston.
Described primary oil cylinder sleeve is arranged on one-level internal body.
The rotating shaft of two grades of described male rotor suction ends stretches out in two grades of suction end glands two.
Compared with prior art, advantages of the present invention is as follows:
The present invention has single-head, twin-stage expansion, simple structure, sealed reliable, efficiency high and high reliability, its In can be widely applied to pressure energy of natural gas recovery system, with very big social benefit and economic benefit.
Brief description of the drawings
Fig. 1 is structure chart of the invention;
Fig. 2 is the sectional view of Fig. 1;
Description of reference numerals, 1- one-levels body, 2- one-levels suction end base, bis- grades of bodies of 3-, bis- grades of suction end bases of 4-, 5- mono- Level body gland, 6- one-levels male rotor, 7- one-levels female rotor, bis- grades of male rotors of 8-, bis- grades of female rotors of 9-, 10- cylindrical roller axles Hold one, 11- one-levels dummy piston, 12- primary oils cylinder sleeve, 13- one-level labyrinth seals set, 14- cylinder roller bearings two, 15- mono- The single-row angular contact bearing two of row angular contact bearing one, 16-, 17- stripped nuts one, 18- coupling assemblies, 19- secondary mazes Sealing shroud, 20- cylinder roller bearings two, 21- four-point contact balls, 22- stripped nuts two, bis- grades of female rotor bearings of 23- Gland, bis- grades of suction end glands one of 24-, bis- grades of male rotor bearing glands of 25-, 26-O types sealing ring, 27- axle envelopes installation set, 28- Axle envelope one, 29- axle envelopes axle sleeve, 30- mechanical sealing assemblies, 31- axle envelopes two, bis- grades of suction end glands two of 32-, 33- cylindrical rollers Bearing three, bis- grades of dummy pistons of 34-, 35- two-level oil cylinders set, the single-row angular contact bearings three of 36-.
Specific embodiment
The design is described in detail below in conjunction with the accompanying drawings:
Referring to Fig. 1 and Fig. 2:The single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled, it is characterised in that: Including one-level body 1,2, two grades of bodies 3 of one-level suction end base and two grades of suction end bases 4, described one-level body 1 and two grades of machines Body 4 is hollow shell, and the one-level suction end 2 of one-level body 1 is connected with two grades of bodies 3, and the other end of one-level body 1 is provided with One-level body gland 5, the other end of two grades of bodies 3 is provided with two grades of suction end bases 4, is set on two grades of described suction end bases 4 There are two grades of suction end glands 1 and two grades of suction end glands 2 32;
One-level male rotor 6 and one-level female rotor 7, described one-level male rotor 6 and cloudy turn of one-level are provided with one-level body 1 Son 7 is relatively set into cylindric, and two side axles of one-level male rotor 6 and one-level female rotor 7 are respectively arranged at one-level body 1 and one-level In suction end base 2, cylinder roller bearing 1, one-level dummy piston are disposed with the exhaust side rotating shaft of one-level male rotor 6 11, described the provided circumferentially about of one-level dummy piston 11 has primary oil cylinder sleeve 12, is set in the exhaust side rotating shaft of one-level female rotor 7 It is equipped with cylinder roller bearing 1;Described cylinder roller bearing 1 is mainly used in bearing one-level male rotor 6 and cloudy turn of one-level The radial gas power of son 7;Described one-level dummy piston 11 and primary oil cylinder sleeve 12 is arranged at the outer of cylinder roller bearing 1 Side, one-level dummy piston 11 is arranged in the exhaust side axle of one-level male rotor 6,
It is close that one-level labyrinth is disposed with respectively in the suction side rotating shaft of described one-level male rotor 6 and one-level female rotor 7 Big envelope 13, cylinder roller bearing 2 14, single-row contact ball bearing 1, single-row contact ball bearing 2 16 and stripped nut one 17, it is additionally provided with single-row contact ball bearing 3 36, described single-row contact ball in the suction side rotating shaft of described one-level male rotor 6 Bearing 3 36 is arranged at the right side of single-row contact ball bearing 2 16, described one-level labyrinth seal set 13 and one-level male rotor 6 and Throttling sealing is realized in the exhaust side rotating shaft of one-level female rotor 7;Cylinder roller bearing 2 14 is arranged at one-level labyrinth seal set 13 Outside, its radial gas power for being mainly used in bearing one-level male rotor 6 and one-level female rotor 7, outside cylinder roller bearing 2 14 Side is provided with single-row contact ball bearing 1 and single-row contact ball bearing 2 16, is mainly used in bearing one-level male rotor 6 and one-level The axial gas power of female rotor 7;Stripped nut 1 is arranged at the outside of single-row contact ball bearing 2 16, is mainly used in fixing Cylinder roller bearing 2 14, single-row contact ball bearing 1 and single-row contact ball bearing 2 16.
Two grades of male rotors 8 and two grades of female rotors 9 are provided with two grades of bodies 3, described two grades of male rotors 8 and two grades of the moon turn Son 9 is relatively set into cylindric;Two grades of described male rotors 8 and two side axles of two grades of female rotors 9 are respectively arranged at two grades of bodies 3 In two grades of suction end bases 4;
Secondary maze sealing shroud 19, cylinder is respectively arranged with two grades of male rotors 8 and two grades of suction side rotating shafts of female rotor 9 Roller bearing 2 20, four-point contact ball 21 and stripped nut 2 22, described secondary maze sealing shroud 19 and two grades of sun Throttling sealing is realized in rotor 8 and two grades of suction side rotating shafts of female rotor 9;Cylinder roller bearing 2 20 is arranged at secondary maze sealing The outside of set 19, its radial gas power for being mainly used in bearing two grades of male rotors 8 and two grades of female rotors 9, cylinder roller bearing two 20 outside is provided with four-point contact ball 21, is mainly used in bearing the axial gas of two grades of male rotors 8 and two grades of female rotors 9 Power;Stripped nut 2 22 is arranged at the outside of four-point contact ball 21, is mainly used in the He of fixed cylinder roller bearing 2 20 The inner ring of four-point contact ball 21;Two grades of described female rotor bearing glands 23 are arranged in two grades of suction end bases 4, for solid Determine the outer ring of cylinder roller bearing 2 20 and four-point contact ball 21;Two grades of described suction end glands 1 are arranged at two grades The outside of female rotor bearing gland 23, for fixing two grades of female rotor bearing glands 23;
Mechanical sealing assembly 30, two grades of suction end bases 4 are additionally provided with the suction side rotating shaft of two grades of described male rotors 8 Two grades of male rotor bearing glands 25 are inside additionally provided with, two grades of male rotor bearing glands 25 are arranged at the right side of four-point contact ball 21 Side, for fixed cylinder roller bearing 2 20 and the outer ring of four-point contact ball 21, two grades of described male rotor bearing glands Set fluted on 25 excircle, O-ring seal 26 is provided with groove, the gas for sealing compound expansion endoluminal leak Body;Axle envelope installation set 27 is provided with two grades of inner peripherys of male rotor bearing gland 25, is set on the inner periphery of axle envelope installation set 27 Axle envelope 1 is equipped with, axle envelope 1 is arranged on axle envelope axle sleeve 29, axle envelope axle sleeve 29 is arranged at two grades of suction sides of male rotor 8 and turns On axle, axle envelope 1 is contacted with axle envelope axle sleeve 29, the gas for sealing compound expansion endoluminal leak;The outside of axle envelope axle sleeve 29 Mechanical sealing assembly 30 is provided with, the gas for sealing compound expansion endoluminal leak;
3 33, two grades of balances of cylinder roller bearing are respectively arranged with the exhaust side rotating shaft of two grades of described male rotors 8 to live Plug 34, two-level oil cylinder set 35, cylinder roller bearing 3 33 is respectively arranged with two grades of exhaust side rotating shafts of female rotor 9, described Cylinder roller bearing 3 28 is mainly used in bearing the radial gas power of two grades of male rotors 8 and two grades of female rotors 9;Described two grades are put down Weighing apparatus piston 34 and two-level oil cylinder's set 35 are arranged at the outside of cylinder roller bearing 3 33, and two grades of dummy pistons 34 are arranged on two grades of sun In the exhaust side axle of rotor 8, two-level oil cylinder's set 35 is arranged on inside two grades of bodies 3, and two grades of described dummy pistons 34 are arranged in In described two-level oil cylinder's set 35, two grades of described dummy pistons 34 in the presence of the lubricating oil with setting pressure, to two Level male rotor 8 applies the active force of setting, for balancing the gas force effect suffered by two grades of male rotors 8, two-level oil cylinder's set 35 It is arranged on inside two grades of bodies 3, the suction end roller end of described one-level male rotor 6 and two grades of exhaust ends of male rotor 8 turn Shaft end is connected by coupling assembly 18;The outside of two grades of described male rotor bearing glands 25 is provided with two grades of air-breathing side pressures Lid 2 32, for fixing two grades of suction end glands 2 32;Axle envelope 2 31 is provided with two grades of inner rings of suction end gland 2 32, is used In the gas of sealing compound expansion endoluminal leak;
Described one-level dummy piston 11 is arranged in described primary oil cylinder sleeve 12, and described one-level dummy piston 11 exists In the presence of lubricating oil with setting pressure, the active force of setting is applied to one-level male rotor 6, for balancing one-level male rotor Gas force effect suffered by 6.
Two grades of described dummy pistons 34 are arranged in described two-level oil cylinder's set 35.
Described coupling assembly 18 be arranged on two grades of dummy pistons 34 outside and two single-row contact ball bearings 2 16 Outside.
Described primary oil cylinder sleeve 12 is arranged on inside one-level body 1.
The rotating shaft of two grades of described suction ends of male rotor 9 stretches out in two grades of suction end glands 2 32.
The course of work of the invention:Entered by the air inlet A on one-level suction end base 2 from the high-pressure natural gas in pipeline Enter in the suction muffler of one-level male rotor 6 and the composition of one-level female rotor 7, complete one-level intake process;High pressure in one-level suction muffler Natural gas carries out one-stage expansion, drives one-level male rotor 6 and one-level female rotor 7 to rotate, and completes one-stage expansion process;In one-level sun In rotor 6 and the rotation process of one-level female rotor 7, the intermediate pressure after expansion work forces natural gas by the row on one-level body 1 Gas opening B is discharged, and completes one-level exhaust process;Intermediate pressure natural gas after discharge enters two grades of suction holes of suction end base 4 In mouth C, into two grades of male rotors 8 and two grades of suction mufflers of the composition of female rotor 9, secondary inlet process is completed;Two grades of suction mufflers Interior intermediate pressure natural gas carries out compound expansion, drives two grades of male rotors 8 and two grades of female rotors 9 to rotate, and completes compound expansion Process;In two grades of negative and positive rotor rotation processes, by the exhaust on two grades of bodies 3 after the natural gas expansion work of intermediate pressure Aperture D is discharged, and completes secondary exhaust process;The suction end rotating shaft of one-level male rotor 6 and two grades of exhaust end rotating shafts of male rotor 8 it Between be set together by coupling assembly 18, one-level male rotor 6 stretches out shaft part connection generator or other power-equipments Drive shaft, drives generator or other power-equipments.
Described above is not limitation of the present invention, and the present invention is also not limited to the example above, the art Change, remodeling, addition or replacement that technical staff is made in essential scope of the invention, belong to protection model of the invention Enclose.

Claims (5)

1. the single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled, it is characterised in that:Including one-level body (1), one-level suction end base(2), two grades of bodies(3)With two grades of suction end bases(4), described one-level body(1)With two grades of bodies (4)It is hollow shell, one-level body(1)One-level suction end(2)With two grades of bodies(3)Connection, one-level body(1)It is another End is provided with one-level body gland(5)Two grades of bodies(3)The other end be provided with two grades of suction end bases(4), described two grades of suctions Gas end seat(4)On be provided with two grades of suction end glands one(24)With two grades of suction end glands two(32);
One-level body(1)Inside it is provided with one-level male rotor(6)With one-level female rotor(7), described one-level male rotor(6)And one-level Female rotor(7)It is relatively set into cylindric, one-level male rotor(6)With one-level female rotor(7)Two side axles be respectively arranged at one-level Body(1)With one-level suction end base(2)It is interior, one-level male rotor(6)Exhaust side rotating shaft on be disposed with cylinder roller bearing One(10), one-level dummy piston(11), described one-level dummy piston(11)Provided circumferentially about have primary oil cylinder sleeve(12), one Level female rotor(7)Exhaust side rotating shaft on be provided with cylinder roller bearing one(10);Described one-level male rotor(6)It is cloudy with one-level Rotor(7)Suction side rotating shaft on be disposed with one-level labyrinth seal set respectively(13), cylinder roller bearing two(14), it is single-row Contact ball bearing one(15), single-row contact ball bearing two(16)With stripped nut one(17), described one-level male rotor(6)'s Single-row contact ball bearing three is additionally provided with suction side rotating shaft(36), described single-row contact ball bearing three(36)It is arranged at single-row Contact ball bearing two(16)Right side, described one-level labyrinth seal set(13)With one-level male rotor(6)With one-level female rotor(7) Exhaust side rotating shaft realize throttling sealing;Cylinder roller bearing two(14)It is arranged at one-level labyrinth seal set(13)Outside, circle Post roller bearing two(14)Outside be provided with single-row contact ball bearing one(15)With single-row contact ball bearing two(16);Locking circle Nut one(17)It is arranged at single-row contact ball bearing two(16)Outside;
Two grades of bodies(3)Inside it is provided with two grades of male rotors(8)With two grades of female rotors(9), described two grades of male rotors(8)With two grades Female rotor(9)It is relatively set into cylindric;Two grades of described male rotors(8)With two grades of female rotors(9)Two side axles be respectively provided with In two grades of bodies(3)With two grades of suction end bases(4)It is interior;
Two grades of male rotors(8)With two grades of female rotors(9)Suction side rotating shaft on be respectively arranged with secondary maze sealing shroud(19), circle Post roller bearing two(20), four-point contact ball(21)With stripped nut two(22), described secondary maze sealing shroud (19)With two grades of male rotors(8)With two grades of female rotors(9)Suction side rotating shaft realize throttling sealing;Cylinder roller bearing two(20) It is arranged at secondary maze sealing shroud(19)Outside, cylinder roller bearing two(20)Outside be provided with four-point contact ball (21);Stripped nut two(22)It is arranged at four-point contact ball(21)Outside, two grades of described male rotors(8)Air-breathing Mechanical sealing assembly is additionally provided with the rotating shaft of side(30), two grades of suction end bases(4)Inside it is additionally provided with two grades of male rotor bearing glands (25), two grades of male rotor bearing glands(25)It is arranged at four-point contact ball(21)Right side, for fixed cylinder Roller Shaft Hold two(20)And four-point contact ball(21)Outer ring, two grades of described male rotor bearing glands(25)Excircle on set It is fluted, O-ring seal is provided with groove(26), two grades of male rotor bearing glands(25)Inner periphery on be provided with axle envelope peace Encapsulation(27), axle envelope installation set(27)Inner periphery on be provided with axle envelope one(28), axle envelope(28)It is arranged at axle envelope axle sleeve (29)On, axle envelope axle sleeve(29)It is arranged at two grades of male rotors(8)Suction side rotating shaft on, axle envelope axle sleeve(29)Outside be provided with Mechanical sealing assembly(30), described two grades of male rotors(8)Exhaust side rotating shaft on be respectively arranged with cylinder roller bearing three (33), two grades of dummy pistons(34), two-level oil cylinder set(35), two grades of female rotors(9)Exhaust side rotating shaft on be provided with cylinder rolling Sub- bearing three(33);Two grades of described dummy pistons(34)Covered with two-level oil cylinder(35)It is arranged at cylinder roller bearing three(33)'s Outside, two-level oil cylinder's set(35)It is arranged on two grades of bodies(3)Inside, described one-level male rotor(6)Suction end roller end With two grades of male rotors(8)Exhaust end roller end pass through coupling assembly(18)Connection;Two grades of described male rotor bearing pressures Lid(25)Outside be provided with two grades of suction end glands two(32), two grades of suction end glands two(32)Inner ring in be provided with axle envelope Two(31).
2. the single machine two-stage dilating screw machine that a kind of pressure energy of natural gas according to claim 1 is recycled, its feature It is:Described one-level dummy piston(11)It is arranged in described primary oil cylinder sleeve(12)Two grades of interior, described dummy pistons (34)It is arranged in described two-level oil cylinder's set(35)It is interior.
3. the single machine two-stage dilating screw machine that a kind of pressure energy of natural gas according to claim 1 and 2 is recycled, it is special Levy and be:Described coupling assembly(18)It is arranged on two grades of dummy pistons(34)Outside.
4. the single machine two-stage dilating screw machine that a kind of pressure energy of natural gas according to claim 3 is recycled, its feature It is:Described primary oil cylinder sleeve(12)It is arranged on one-level body(1)It is internal.
5. the single machine two-stage dilating screw machine that a kind of pressure energy of natural gas according to claim 4 is recycled, its feature It is:Two grades of described male rotors(9)The rotating shaft of suction end stretches out in two grades of suction end glands two(32).
CN201621143176.3U 2016-10-21 2016-10-21 The single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled Withdrawn - After Issue CN206267875U (en)

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Application Number Priority Date Filing Date Title
CN201621143176.3U CN206267875U (en) 2016-10-21 2016-10-21 The single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled

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Application Number Priority Date Filing Date Title
CN201621143176.3U CN206267875U (en) 2016-10-21 2016-10-21 The single machine two-stage dilating screw machine that a kind of pressure energy of natural gas is recycled

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106285785A (en) * 2016-10-21 2017-01-04 西安琦通新能源设备有限公司 The single machine two-stage dilating screw machine that pressure energy of natural gas recycles

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106285785A (en) * 2016-10-21 2017-01-04 西安琦通新能源设备有限公司 The single machine two-stage dilating screw machine that pressure energy of natural gas recycles
CN106285785B (en) * 2016-10-21 2019-01-01 西安琦通新能源设备有限公司 The single machine two-stage dilating screw machine that pressure energy of natural gas recycles

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