CN102373966A - Screw-type Steam Machine - Google Patents
Screw-type Steam Machine Download PDFInfo
- Publication number
- CN102373966A CN102373966A CN2011101692561A CN201110169256A CN102373966A CN 102373966 A CN102373966 A CN 102373966A CN 2011101692561 A CN2011101692561 A CN 2011101692561A CN 201110169256 A CN201110169256 A CN 201110169256A CN 102373966 A CN102373966 A CN 102373966A
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- Prior art keywords
- steam
- annular seal
- hole
- main body
- seal parts
- 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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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
- F01C19/00—Sealing arrangements in rotary-piston machines or engines
- F01C19/08—Axially-movable sealings for working fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/08—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C18/12—Rotary-piston pumps specially adapted for elastic fluids of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
- F04C18/14—Rotary-piston pumps specially adapted for elastic fluids 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
- F04C18/16—Rotary-piston pumps specially adapted for elastic fluids 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Compressor (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The invention provides a screw-type steam machine capable of preventing leaked steam from immersing into a lubricating oil chamber relatively to processing pressure of fluid which is the steam. A screw-type steam compressor (1) is provided with a screw rotor (3) received in a rotor chamber (5) formed in the case (2) and compressing the steam; and a first annular sealing component (6), a second annular sealing component (7) and a third annular sealing component (8) together disposed between the rotor chamber and the lubrication oil chamber (23) and arranged successively from the rotor chamber side to the lubrication oil chamber side. A first hole (15) and a second hole (16) are formed in the case. The first hole communicates with a first sealing room (11) between the first annular sealing component and the third annular sealing component. A coagulator (9) is installed in the first hole. The second hole is open to the air.
Description
Technical field
The present invention relates to a kind of spiral steam machinery, it compresses steam or changes the expansive force of steam into rotating force.
Background technique
Be to dispose in the spiral steam machinery of fluid with steam, be full of between the oil chamber of rotor chamber and bearing etc. of steam by the axle envelope.Here, as the axle envelope structure that in rotating machineries such as compressor, uses, for example known patent documentation 1, the structure described in 2.
A kind of encapsulation technique of record in patent documentation 1, its gap to running shaft and seal ring is pressed into the liquid of high pressure, pushes up back gas leakage (leak gas) by the pressure of the liquid that is pressed into.In addition, a kind of encapsulation technique of record in patent documentation 2, it is to the gap of running shaft and seal ring indentation sealing gas, pushes up back gas leakage by the pressure of the sealing gas that is pressed into.
(existing technology document)
(patent documentation)
Patent documentation 1: japanese kokai publication sho 53-81868 communique
Patent documentation 2: japanese kokai publication sho 62-124364 communique
On the other hand, being to dispose in the spiral steam machinery of fluid with steam, when leaked steam or its water of condensation floodlubrication grease chamber, possibly cause the deterioration of lubricant oil, the insufficient lubrication of bearing etc.Therefore, need make not floodlubrication of leaked steam grease chamber reliably.
Summary of the invention
The present invention In view of the foregoing proposes, and its purpose is to provide a kind of spiral steam machinery, and it has axle envelope structure, said axle envelope structure can with dispose fluid be steam pressure independent prevent that leaked steam from immersing to the oil chamber.
Present inventors are research with keen determination in order to solve said problem; The result is: through side disposes the first annular seal parts, the second annular seal parts, the 3rd annular seal parts successively towards the oil chamber from rotor chamber (vaporium) side; And with the first annular seal parts and the second annular seal parts between first hole that is communicated with of first seal space on coagulator is installed; Thus, can solve said problem.Accomplish the present invention based on this opinion.
That is, the present invention is a kind of spiral steam machinery, and it has:
Helical rotor, it is accommodated in the rotor chamber that in casing, forms, and compressed steam perhaps converts the expansive force of steam into rotating force;
The first annular seal parts, the second annular seal parts and the 3rd annular seal parts, they are at said rotor chamber and be formed between the oil chamber in the casing, and side is arranged in order configuration towards the oil chamber from the rotor chamber side;
First hole, it is formed on the casing, is communicated with first seal space between said first annular seal parts and the said second annular seal parts;
Second hole, it is formed on the casing, is communicated with second seal space between said second annular seal parts and said the 3rd annular seal parts; And
Coagulator, it is installed on said first hole, makes the vapor condenses of leaking from said first seal space of rotor chamber side direction.
According to this formation, leaked steam is condensed at coagulator, and the pressure of first seal space descends thus, and steam spills from first seal space via first hole.Thus, prevent the immersion of leaked steam to the oil chamber.And then, thereby the pressure of first seal space is owing to leaked steam is condensed than the pressure decline of second seal space, so air gets into first seal space from second seal space.Consequently, this air plays promptly surpassing the effect that the leaked steam of the second annular seal parts is pushed up back to oil chamber's side, thus, prevents the immersion of leaked steam to the oil chamber.
And, if under the excessive situation of the ability of coagulator, only leaked steam to spill quantitative change big, can not produce harmful effects to other parts of spiral steam machinery.That is, can be that the pressure independent ground of steam prevents that reliably leaked steam from immersing to the oil chamber just, with the disposal fluid as long as make the ability (coagulability) of coagulator have to a certain degree more than needed.
In addition, preferred in the present invention said coagulator has the main body container of accepting the steam supply and the refrigerant pipe that in this main body container, is provided with, and at the exhaust port of said main body container drain receiver is installed.
According to such formation, water of condensation accumulates in the main body container, utilizes this water of condensation of accumulating can prevent that air from flowing into first hole from the outside.Consequently, the pressure of first seal space is further reduced.In addition, because only water of condensation is discharged from coagulator, so do not need the processing of leaked steam.
And then preferred in the present invention said coagulator has the main body container of accepting the refrigeration agent supply and the steam tube that in this main body container, is provided with, and the sparger of attraction steam and water of condensation thereof is installed at the exhaust port of said steam tube.
According to such formation, force to attract steam and water of condensation thereof through sparger, thus, the pressure of first seal space is further reduced.In addition, do not need the interior liquid level management of main body container of coagulator especially.And then, owing to do not pay particular attention to the interior liquid level change of the main body container of coagulator,, that is, can form compact coagulator so can reduce the capacity of main body container.
And then preferred in the present invention said spiral steam machinery has air supply mechanism, and said air supply mechanism is installed on said second hole, and to the said second seal space pressurised air.
According to such formation, can improve the pressure of second seal space.Through improving the pressure of second seal space, will promptly will further improve thus to of the effect of oil chamber's side above revolution seed cell, the leaked steam top side of the second annular seal parts.
The invention effect
According to the present invention, be to dispose in the spiral steam machinery of fluid with steam, can prevent that leaked steam is to its oil chamber's immersion with the pressure independent ground of steam.
Description of drawings
Fig. 1 is the sectional side view of the spiral vapour compression machine of expression first mode of execution of the present invention;
Fig. 2 is the detailed sectional side view of a part of the spiral vapour compression machine of expression second mode of execution of the present invention;
Fig. 3 is the detailed sectional side view of a part of the spiral vapour compression machine of expression the 3rd mode of execution of the present invention.
The spiral vapour compression machine of 1-;
The 2-casing;
The 3-helical rotor;
The 4-rotor shaft;
The 5-rotor chamber;
The 6-first annular seal parts;
The 7-second annular seal parts;
8-the 3rd annular seal parts;
The 9-coagulator;
11-first seal space;
12-second seal space;
15-first hole;
16-second hole;
The 18-drain receiver;
The 23-oil chamber.
Embodiment
Below, be used for the mode of embodiment of the present invention with reference to description of drawings.In following explanation; Be illustrated in the example that is suitable for axle envelope structure of the present invention in the spiral vapour compression machine of compressed steam, but axle envelope structure of the present invention also goes for the expansive force of steam is converted into the spiral steam expansion machine (spiral expander) of rotating force.
(first mode of execution)
As shown in Figure 1, spiral vapour compression machine 1 has: the helical rotor 3 that male and female are a pair of; Rotor shaft 4, itself and a side's of helical rotor 3 the coaxial setting of rotor (male rotor); And motor (not shown), it makes rotor shaft 4 rotations.Helical rotor 3 is accommodated in the rotor chamber 5 that on casing 2, forms.Casing 2 is provided with suction passage 13 and discharges stream 14, and the steam that said suction passage 13 will compress is fed to rotor chamber 5, and said discharge stream 14 is discharged the steam that in rotor chamber 5, compresses through helical rotor 3.For example behind the 0.5MPa, discharged by helical rotor 3 boil down tos from suction passage 13 vapor supplied from discharging stream 14.
And, also can be not have a pair of helical rotor of male and female 3 (double rotor), and have the spiral vapour compression machine of 1 helical rotor (single rotor).
Be utilized in the above-mentioned first annular seal parts 6, the second annular seal parts 7 and the 3rd annular seal parts 8 of gap configuration between rotor shaft 4 and the casing 2, form seal space.Space between the first annular seal parts 6 and the second annular seal parts 7 is called first seal space 11, the space between the second annular seal parts 7 and the 3rd annular seal parts 8 is called second seal space 12.
Here, near the first annular seal parts 6 of the position configuration of rotor chamber 5 noncontact seal parts preferably.This is because will immerse the gap of the first annular seal parts 6 and rotor shaft 4 from the leaked steam of the high temperature of rotor chamber 5, and the leaked steam of high temperature touches the first annular seal parts 6 itself.When using the contact seal parts as the first annular seal parts 6, its degradation speed is big, between short-term in sealing function decline.
From rotor chamber 5 farthest the 3rd annular seal parts 8 of the position configuration of (near oil chamber 23) be contact seal parts or noncontact seal parts.The second annular seal parts 7 that between the first annular seal parts 6 and the 3rd annular seal parts 8, are provided with are noncontact seal parts.
As the noncontact seal parts, the labyrinth seal of having given an example (ラ PVC リ Application ス シ one Le), Adhesive seal (PVC ス コ シ one Le) etc.As the contact seal parts, the lip seal of having given an example, O shape circle etc.The first annular seal parts 6, the second annular seal parts 7 and the 3rd annular seal parts 8 for example are respectively labyrinth seal, Adhesive seal and lip seal.
In addition, on casing 2, offer first hole 15 and second hole 16, said first hole 15 is used for being communicated with outside and first seal space 11, and said second hole 16 is used for being communicated with outside and second seal space 12.
Fig. 1 (b) is the A portion details drawing of Fig. 1 (a).Shown in Fig. 1 (b), with the end in first hole 15 of first seal space, 11 opposite sides, through pipe arrangement 17 coagulators 9 are installed.And Fig. 1 (a), Fig. 1 (b) explain ideograph of the present invention for being used to, and are not the product drawingization with reality.Pipe arrangement 17 is used to represent that first hole 15 and coagulator 9 are connected by pipe arrangement, rather than the actual pipe arrangement of expression intactly.Second hole 16 is to atmosphere opening.
Coagulator 9 has main body container 9a that accepts the steam supply and the refrigerant pipe 9b that in main body container 9a, is provided with.In addition, on the exhaust port 9c of main body container 9a, drain receiver 18 is installed.Drain receiver 18 is the accumulated inside water of condensation at main body container 9a, utilizes the parts of this water of condensation to carrying out water seal between outside (airspace) and first seal space 11.For example circulation has water in refrigerant pipe 9b.The shape of main body container 9a for example is a tubular.
(axle envelope principle)
In rotor chamber 5 by the part of the steam of the high temperature of helical rotor 3 compression from the clearance leakage between the rotor shaft 4 and the first annular seal parts 6 to first seal space 11.Leak into the leaked steam (leaked steam) of first seal space 11, flow into the main body container 9a of coagulator 9 via first hole 15 and pipe arrangement 17.This leaked steam is circulated in the water cooling among the refrigerant pipe 9b and is condensed.Leaked steam is through condensing, and its volume falls sharply, and consequently, the pressure of first seal space 11 drops to below the barometric pressure.The leaked steam of coming out from the clearance leakage between the rotor shaft 4 and the first annular seal parts 6 thus, is expelled to the main body container 9a of coagulator 9 via first hole from first seal space 11.Consequently, prevent that leaked steam from immersing to oil chamber 23.In addition, because the pressure of first seal space 11 drops to below the barometric pressure, so air gets into first seal space 11 from second seal space 12 by the barometric pressure management.This air plays the effect that will push up back from the leaked steam of clearance leakage 23 sides to the oil chamber between the rotor shaft 4 and second ring-shaped member 7 promptly, thus, prevents that also leaked steam from immersing to oil chamber 23.
In addition, drain receiver 18 is installed on coagulator 9.Through this drain receiver 18, accumulation of condensed water utilizes this water of condensation of gathering can prevent that air from flowing into first hole 15 from the outside through main body container 9a in the main body container 9a of coagulator 9.Consequently, the pressure of first seal space 11 is further reduced.In addition, since through drain receiver 18 only water of condensation from coagulator 9 discharges (steam gas is not discharged), so need not carry out the processing of leaked steam.
And; Push up back in the encapsulation technique of gas leakage through the axle envelope fluid of patent documentation 1,2; When the axle that is pressed into seals the pressure of fluid and (for example disposes fluid; Steam) pressure is compared when too high, the problem that the flow that exists the axle in the gap through running shaft and seal ring to seal fluid becomes excessive.On the contrary, dispose the pressure of fluid when low, insufficient disposal escape of liquid when the pressure ratio of axle envelope fluid thereby the axle envelope becomes.But under situation of the present invention, if under the excessive situation of the ability (coagulability) of coagulator 9, only the leakage quantitative change of leaked steam is big, can not produce harmful effect to other parts of spiral vapour compression machine.That is, can be that the pressure independent ground of steam prevents that reliably leaked steam is to oil chamber's 23 immersions just, with disposing fluid as long as make the ability (coagulability) of coagulator 9 have to a certain degree more than needed.
(second mode of execution)
The spiral vapour compression machine 201 of second mode of execution is described with reference to Fig. 2.The difference of the spiral vapour compression machine 201 of second mode of execution and the spiral vapour compression machine 1 of first mode of execution is the structure of coagulator and in second mode of execution, does not use drain receiver 18 and use sparger 22 this point.In second mode of execution, force to attract leaked steam and water of condensation thereof by sparger 22.
As shown in Figure 2, the coagulator 20 that is installed on first hole 15 through pipe arrangement 17 has main body container 20a that accepts the refrigeration agent supply and the steam tube 20b that in main body container 20a, is provided with.The refrigeration agent that is fed to main body container 20a for example is water, and the shape of main body container 20a for example is a tubular.Steam tube 20b in the main body container 20a is communicated with pipe arrangement 17, and its exhaust port is installed on the sparger 22 through pipe arrangement 21.
And pipe arrangement 17, steam tube 20b and pipe arrangement 21 are connected with this from upstream side in proper order, and pipe arrangement 17 is not communicated with main body container 20a, and likewise, main body container 20a is not communicated with pipe arrangement 21.Second hole 16 and first mode of execution are equally to atmosphere opening.
According to this mode of execution,, can make the pressure of first seal space 11 further reduce thus through forcing to attract leaked steam and water of condensation thereof by sparger 22.In addition, in the first embodiment, owing to be water seal, so need to manage the interior liquid level of main body container 9a of coagulator 9, but under the situation of this mode of execution, owing to adopt the method for the pressure attraction that utilizes sparger 22, so do not need water seal.That is, do not need the liquid level in the coagulator 20 to manage.In addition, under the situation of this mode of execution,,, can form compact coagulator 20 so can reduce the capacity of main body container 20a owing to as first mode of execution, do not pay particular attention to the interior liquid level change of the main body container of coagulator.
(the 3rd mode of execution)
The spiral vapour compression machine 301 of the 3rd mode of execution is described with reference to Fig. 3.The spiral vapour compression machine 301 of this mode of execution is installed air supply mechanism 19 in second hole 16 of the casing 2 of the spiral vapour compression machine 1 that is arranged at first mode of execution.
More than, mode of execution of the present invention has been described, still, the present invention is not limited to above-mentioned mode of execution, can in the described scope of claim, carry out various change and implement.
Claims (4)
1. a spiral steam is mechanical, and it has:
Helical rotor, it is accommodated in the rotor chamber that in casing, forms, and compressed steam perhaps converts the expansive force of steam into rotating force;
The first annular seal parts, the second annular seal parts and the 3rd annular seal parts, they are at said rotor chamber and be formed between the oil chamber in the casing, and side is arranged in order configuration towards the oil chamber from the rotor chamber side;
First hole, it is formed on the casing, is communicated with first seal space between said first annular seal parts and the said second annular seal parts;
Second hole, it is formed on the casing, is communicated with second seal space between said second annular seal parts and said the 3rd annular seal parts; And
Coagulator, it is installed on said first hole, makes the vapor condenses of leaking from said first seal space of rotor chamber side direction.
2. spiral steam machinery as claimed in claim 1 is characterized in that,
Said coagulator has the main body container of accepting the steam supply and the refrigerant pipe that in this main body container, is provided with,
Exhaust port at said main body container is equipped with drain receiver.
3. spiral steam machinery as claimed in claim 1 is characterized in that,
Said coagulator has the main body container of accepting the refrigeration agent supply and the steam tube that in this main body container, is provided with,
Exhaust port at said steam tube is equipped with the sparger that attracts steam and water of condensation thereof.
4. mechanical like any described spiral steam of claim 1～3; It is characterized in that; Said spiral steam machinery has air supply mechanism, and said air supply mechanism is installed on said second hole, and to the said second seal space pressurised air.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010151067A JP5390478B2 (en) | 2010-07-01 | 2010-07-01 | Screw steam machine |
| JP2010-151067 | 2010-07-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102373966A true CN102373966A (en) | 2012-03-14 |
| CN102373966B CN102373966B (en) | 2014-08-13 |
Family
ID=45599734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110169256.1A Active CN102373966B (en) | 2010-07-01 | 2011-06-17 | Screw-type Steam Machine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5390478B2 (en) |
| KR (1) | KR101288688B1 (en) |
| CN (1) | CN102373966B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603803A (en) * | 2013-12-09 | 2014-02-26 | 济南海屹流体技术有限公司 | Water vapor screw compressor shaft seal structure |
| CN107345519A (en) * | 2016-05-06 | 2017-11-14 | 英格索尔-兰德公司 | With contactless and contact seal part compressor |
| CN109404282A (en) * | 2018-12-19 | 2019-03-01 | 苏州通润驱动设备股份有限公司 | A kind of shaft seal structure and its monitoring system of screw rod vapour compression machine |
| CN109595169A (en) * | 2019-01-14 | 2019-04-09 | 冰轮环境技术股份有限公司 | Oil free screw compressor sealing mechanism and control method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015031182A (en) * | 2013-08-01 | 2015-02-16 | 株式会社テイエルブイ | Steam compressor |
| WO2015195381A1 (en) * | 2014-06-17 | 2015-12-23 | Schleiffarth James W | Concentrator and crystallizer evaporation system |
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| FR2569780A1 (en) * | 1984-08-30 | 1986-03-07 | Worthington Turbodyne | Sealing and pressurisation process and device for the outlets of shafts of oil-free air compressors |
| DE4310740A1 (en) * | 1993-04-01 | 1994-10-06 | Knorr Bremse Ag | Screw compressor, especially for intermittent operation |
| JP2000045991A (en) * | 1998-07-30 | 2000-02-15 | Mitsubishi Heavy Ind Ltd | Refrigerant lubricating system for refrigerator compressor |
| CN101482115A (en) * | 2008-01-08 | 2009-07-15 | 株式会社神户制钢所 | Screw rod compressor |
| JP2009250170A (en) * | 2008-04-09 | 2009-10-29 | Kobe Steel Ltd | Screw fluid machine |
| CN101592151A (en) * | 2008-05-27 | 2009-12-02 | 株式会社神户制钢所 | Screw fluid machine |
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| US4451046A (en) * | 1982-10-20 | 1984-05-29 | Dresser Industries, Inc. | Apparatus for sealing between a shaft and housing with multiple land members and seal members |
| JPH048893A (en) * | 1990-04-25 | 1992-01-13 | Hitachi Ltd | Oil cooler for oiling type screw compressor |
| JP2003097487A (en) * | 2001-09-25 | 2003-04-03 | Hitachi Ltd | Centrifugal compressor |
| JP4365443B1 (en) * | 2008-07-29 | 2009-11-18 | 株式会社神戸製鋼所 | Oil-free screw compressor |
-
2010
- 2010-07-01 JP JP2010151067A patent/JP5390478B2/en active Active
-
2011
- 2011-06-17 CN CN201110169256.1A patent/CN102373966B/en active Active
- 2011-06-30 KR KR1020110064633A patent/KR101288688B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2569780A1 (en) * | 1984-08-30 | 1986-03-07 | Worthington Turbodyne | Sealing and pressurisation process and device for the outlets of shafts of oil-free air compressors |
| DE4310740A1 (en) * | 1993-04-01 | 1994-10-06 | Knorr Bremse Ag | Screw compressor, especially for intermittent operation |
| JP2000045991A (en) * | 1998-07-30 | 2000-02-15 | Mitsubishi Heavy Ind Ltd | Refrigerant lubricating system for refrigerator compressor |
| CN101482115A (en) * | 2008-01-08 | 2009-07-15 | 株式会社神户制钢所 | Screw rod compressor |
| JP2009250170A (en) * | 2008-04-09 | 2009-10-29 | Kobe Steel Ltd | Screw fluid machine |
| CN101592151A (en) * | 2008-05-27 | 2009-12-02 | 株式会社神户制钢所 | Screw fluid machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603803A (en) * | 2013-12-09 | 2014-02-26 | 济南海屹流体技术有限公司 | Water vapor screw compressor shaft seal structure |
| CN103603803B (en) * | 2013-12-09 | 2016-03-02 | 济南海屹流体技术有限公司 | A kind of water vapor screw compressor shaft seal structure |
| CN107345519A (en) * | 2016-05-06 | 2017-11-14 | 英格索尔-兰德公司 | With contactless and contact seal part compressor |
| CN109404282A (en) * | 2018-12-19 | 2019-03-01 | 苏州通润驱动设备股份有限公司 | A kind of shaft seal structure and its monitoring system of screw rod vapour compression machine |
| CN109595169A (en) * | 2019-01-14 | 2019-04-09 | 冰轮环境技术股份有限公司 | Oil free screw compressor sealing mechanism and control method |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20120002936A (en) | 2012-01-09 |
| JP2012013016A (en) | 2012-01-19 |
| CN102373966B (en) | 2014-08-13 |
| JP5390478B2 (en) | 2014-01-15 |
| KR101288688B1 (en) | 2013-07-22 |
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Effective date of registration: 20220228 Address after: Tokyo, Japan Patentee after: Shengang Compressor Co.,Ltd. Address before: Japan Hyogo Prefecture Patentee before: Kobe Steel, Ltd. |