CN102373966B - Screw-type Steam Machine - Google Patents
Screw-type Steam Machine Download PDFInfo
- Publication number
- CN102373966B CN102373966B CN201110169256.1A CN201110169256A CN102373966B CN 102373966 B CN102373966 B CN 102373966B CN 201110169256 A CN201110169256 A CN 201110169256A CN 102373966 B CN102373966 B CN 102373966B
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- steam
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- body container
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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 screw-type Steam Machine, it compresses steam or changes the expansive force of steam into rotating force.
Background technique
Take steam as disposing in the screw-type Steam Machine of fluid, be full of between the oil chamber of the rotor chamber of steam and bearing etc. by shaft seal.Here, for example, as the shaft seal structure using in the rotating machineries such as compressor, the structure described in known patent documentation 1,2.
In patent documentation 1, record a kind of shaft seal technology, its gap to running shaft and seal ring is pressed into the liquid of high pressure, by the pressure of the liquid being pressed into, pushes up back gas leakage (1eak gas).In addition, record a kind of shaft seal technology in patent documentation 2, it is to the gap indentation sealing gas of running shaft and seal ring, by the pressure of the sealing gas being pressed into, pushes up back gas leakage.
(prior art document)
(patent documentation)
Patent documentation 1: Japanese kokai publication sho 53-81868 communique
Patent documentation 2: Japanese kokai publication sho 62-124364 communique
Shaft seal technology described in patent documentation 1,2 is all to push up back gas leakage with fluid.The in the situation that of this shaft seal technology, should be noted that the pressure of the fluid being pressed into and dispose the relation between the pressure of fluid (compressed fluid or be inflated fluid).The pressure of disposing fluid changes, and according to its pressure of machine specification, has varied.When the pressure of the fluid being pressed into, compare when too high the problem that exists the flow that is pressed into fluid in the gap by running shaft and seal ring to become excessive with the pressure of disposing fluid.On the contrary, when the pressure ratio of the fluid being pressed into is disposed the pressure of fluid when low, insufficient disposal fluid leakage thereby shaft seal becomes.
On the other hand, take steam as disposing in the screw-type Steam Machine of fluid, when leaked steam or its water of condensation floodlubrication grease chamber, may cause the insufficient lubrication etc. of deteriorated, the bearing of lubricant oil.Therefore, need to make reliably not floodlubrication of leaked steam grease chamber.
Summary of the invention
The present invention In view of the foregoing proposes, and its object is to provide a kind of screw-type Steam Machine, and it has shaft seal structure, and described shaft seal structure can immerse to oil chamber with the pressure independent ground Leakage prevention steam that disposal fluid is steam.
The present inventors are research with keen determination in order to solve described problem, result is: by configuring successively the first ring-type sealed member, the second annular seal parts, the 3rd annular seal parts from rotor chamber (vaporium) side towards oil chamber's side, and with the first ring-type sealed member and the second annular seal parts between the first hole of being communicated with of the first seal space on coagulator is installed, thus, can solve described problem.Based on this opinion, complete the present invention.
That is, the present invention is a kind of screw-type Steam Machine, and it has:
Be provided with the casing of suction passage and discharge stream;
Helical rotor, it is accommodated in the rotor chamber forming in described casing, and compressed steam or the expansive force of steam is converted to rotating force;
The first ring-type sealed member, the second annular seal parts and the 3rd annular seal parts, they are at described rotor chamber and be formed between the oil chamber in described casing, from rotor chamber side, towards oil chamber's side, are arranged in order configuration;
The first hole, it is formed on described casing, is communicated with the first seal space between described the first ring-type sealed member and described the second annular seal parts;
The second hole, it is formed on described casing, is communicated with the second seal space between described the second annular seal parts and described the 3rd annular seal parts, and to atmosphere opening; And
Coagulator, it is installed on described the first hole, makes from the steam condensation that described in rotor chamber side direction, the first seal space leaks.
According to this, form, leaked steam is condensed at coagulator, the pressure drop of the first seal space thus, and steam spills from the first seal space via the first hole.Thus, Leakage prevention steam is to the immersion of oil chamber.And then, thereby the pressure of the first seal space is because leaked steam is condensed than the pressure drop of the second seal space, so air enters the first seal space from the second seal space.Consequently, this air plays the effect that will push up back over the leaked steam of the second annular seal parts to oil chamber's side, and thus, Leakage prevention steam is to the immersion of oil chamber.
And, if in the situation that the ability of coagulator is excessive, only leaked steam to spill quantitative change large, can not produce harmful effects to other parts of screw-type Steam Machine.That is, as long as make the ability (coagulability) of coagulator there is to a certain degree more than needed, just can with dispose fluid be steam pressure independent ground reliably Leakage prevention steam to oil chamber, immerse.
In addition, preferred described coagulator has accept the main body container of steam supply and the refrigerant pipe arranging in this main body container in the present invention, at the exhaust port of described main body container, drain receiver is installed.
According to such formation, water of condensation accumulates in main body container, utilizes this water of condensation of accumulating can prevent that air from flowing into the first hole from outside.Consequently, can make the pressure of the first seal space further reduce.In addition, because water of condensation is only discharged from coagulator, so do not need the processing of leaked steam.
And then preferred described coagulator has accept the main body container of refrigeration agent supply and the steam tube arranging in this main body container in the present invention, at the exhaust port of described steam tube, the sparger that attracts steam and water of condensation thereof is installed.
According to such formation, by sparger, force to attract steam and water of condensation thereof, thus, can make the pressure of the first seal space further reduce.In addition, do not need especially the liquid level management in the main body container of coagulator.And then the liquid level change owing to not paying particular attention in the main body container of coagulator, so can reduce the capacity of main body container, that is, can form compact coagulator.
And then preferred described screw-type Steam Machine has air supply mechanism in the present invention, described air supply mechanism is installed on described the second hole, and to described the second seal space pressurised air.
According to such formation, can improve the pressure of the second seal space.By improving the pressure of the second seal space, will will the effect over revolution seed cell, the leaked steam top side of the second annular seal parts further improve to oil chamber's side thus.
Invention effect
According to the present invention, take steam as disposing in the screw-type Steam Machine of fluid, can immerse with the Leakage prevention steam Xiang Qi oil chamber, pressure independent ground of steam.
Accompanying drawing explanation
Fig. 1 means the sectional side view of the spiral vapour compression machine of the first mode of execution of the present invention;
Fig. 2 means the detailed sectional side view of a part of the spiral vapour compression machine of the second mode of execution of the present invention;
Fig. 3 means the detailed sectional side view of a part of the spiral vapour compression machine of the 3rd mode of execution of the present invention.
The spiral vapour compression machine of 1-;
2-casing;
3-helical rotor;
4-rotor shaft;
5-rotor chamber;
6-the first ring-type sealed member;
7-the second annular seal parts;
8-the 3rd annular seal parts;
9-coagulator;
11-the first seal space;
12-the second seal space;
15-the first hole;
16-the second hole;
18-drain receiver;
23-oil chamber.
Embodiment
Below, with reference to the accompanying drawings of for implementing mode of the present invention.In the following description, be illustrated in the example of shaft seal structure applicable of the present invention in the spiral vapour compression machine of compressed steam, but shaft seal of the present invention structure also goes for the expansive force of steam to be converted to the spiral steam expansion machine (spiral expansion device) of rotating force.
(the 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, a side's of itself and helical rotor 3 rotor (male rotor) coaxially arranges; And motor (not shown), it makes rotor shaft 4 rotations.Helical rotor 3 is accommodated in the rotor chamber 5 forming on casing 2.On casing 2, be provided with suction passage 13 and discharge stream 14, the steam that described suction passage 13 will compress is fed to rotor chamber 5, and described discharge stream 14 is discharged the steam in rotor chamber 5 interior compressions by helical rotor 3.From the steam of suction passage 13 supply, by helical rotor 3 boil down tos, for example 0.5MPa, from discharging stream 14, discharged.
And, can be also not there is a pair of helical rotor of male and female 3 (double rotor), and there is the spiral vapour compression machine of 1 helical rotor (single rotor).
Oil chamber 23 is set in casing 2.In oil chamber 23, accommodate the bearing 10 of supporting rotor axle 4, and be filled with the oil of lubricated use.At this, in the space forming between oil chamber 23 and rotor chamber 5, from rotor chamber 5 sides towards oil chamber 23 sides, separate successively the interval of regulation and dispose the first ring-type sealed member 6, the second annular seal parts 7 and the 3rd annular seal parts 8.
Above-mentioned the first ring-type sealed member 6, the second annular seal parts 7 and the 3rd annular seal parts 8 of the gap configuration of utilization between rotor shaft 4 and casing 2, form seal space.Space between the first ring-type sealed member 6 and the second annular seal parts 7 is called to the first seal space 11, the space between the second annular seal parts 7 and the 3rd annular seal parts 8 is called to the second seal space 12.
Here, at the first ring-type sealed member 6 of the position configuration of the most close rotor chamber 5 noncontact seal parts preferably.This is because will immerse the gap of the first ring-type sealed member 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 ring-type sealed member 6 itself.When using contact seal parts as the first ring-type sealed member 6, its degradation speed is large, between short-term in sealing function decline.
From rotor chamber 5 the 3rd annular seal parts 8 that the position of (the most close oil chamber 23) configures farthest, be contact seal parts or noncontact seal parts.The the second annular seal parts 7 that arrange between the first ring-type sealed member 6 and the 3rd annular seal parts 8 are noncontact seal parts.
As noncontact seal parts, labyrinth seal (ラ PVC リ ソ ス シ mono-Le), Adhesive seal (PVC ス ュ シ mono-Le) etc. have been exemplified.As contact seal parts, lip seal, O shape circle etc. have been exemplified.The first ring-type sealed member 6, the second annular seal parts 7 and the 3rd annular seal parts 8 are for example respectively labyrinth seal, Adhesive seal and lip seal.
In addition, offer the first hole 15 and the second hole 16 on casing 2, described the first hole 15 is for being communicated with outside and the first seal space 11, and described the second hole 16 is for being communicated with outside and the second seal space 12.
Fig. 1 (b) is the A portion details drawing of Fig. 1 (a).As shown in Fig. 1 (b), the end in the first hole 15 with the contrary side of the first seal space 11, installs coagulator 9 through pipe arrangement 17.And Fig. 1 (a), Fig. 1 (b), for for ideograph of the present invention is described, are not by actual product drawing.Pipe arrangement 17 is connected by pipe arrangement with coagulator 9 for representing the first hole 15, rather than intactly represents actual pipe arrangement.The second hole 16 is to atmosphere opening.
Coagulator 9 has accepts the main body container 9a of steam supply and the refrigerant pipe 9b arranging in main body container 9a.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 this water of condensation to the parts that carry out water seal between outside (airspace) and the first seal space 11.In refrigerant pipe 9b, for example circulation has water.The shape of main body container 9a is for example tubular.
(shaft seal principle)
In the part of the steam of the interior high temperature being compressed by helical rotor 3 of rotor chamber 5 from the clearance leakage between rotor shaft 4 and the first ring-type sealed member 6 to the first seal space 11.Leak into the leaked steam (leaked steam) of the first seal space 11, via the first hole 15 and pipe arrangement 17, flow into the main body container 9a of coagulator 9.This leaked steam is circulated in the water cooling in refrigerant pipe 9b and is condensed.Leaked steam is by condensing, and its volume falls sharply, and consequently, the pressure drop of the first seal space 11 is below barometric pressure.Thus, from the leaked steam out of the clearance leakage between rotor shaft 4 and the first ring-type sealed member 6, from the first seal space 11, via the first hole, be expelled to the main body container 9a of coagulator 9.Consequently, Leakage prevention steam 23 immersions to oil chamber.In addition, because the pressure drop of the first seal space 11 is below barometric pressure, so air enters the first seal space 11 from the second seal space 12 of being managed by barometric pressure.This air plays the effect that will push up back from the leaked steam of clearance leakage 23 sides to oil chamber between rotor shaft 4 and the second ring-shaped member 7, thus, and also Leakage prevention steam 23 immersions to oil chamber.
In addition, drain receiver 18 is installed on coagulator 9.By this drain receiver 18, accumulation of condensed water, in the main body container 9a of coagulator 9, utilizes this water of condensation of gathering can prevent that air from flowing into the first hole 15 from outside through main body container 9a.Consequently, can make the pressure of the first seal space 11 further reduce.In addition, due to by drain receiver 18 only water of condensation from coagulator 9, discharge (steam gas is not discharged), so do not need to carry out the processing of leaked steam.
And, at the shaft seal fluid by as described in patent documentation 1,2, push up back in the shaft seal technology of gas leakage, when the pressure of the shaft seal fluid being pressed into (for example dispose fluid, steam) pressure is compared when too high, the problem that exists the flow of the shaft seal fluid in the gap by running shaft and seal ring to become excessive.On the contrary, when the pressure ratio of shaft seal fluid is disposed the pressure of fluid when low, insufficient disposal fluid leakage thereby shaft seal becomes.But in situation of the present invention, if in the situation that the ability of coagulator 9 (coagulability) is excessive, only the leakage quantitative change of leaked steam is large, can not produce harmful effect to other parts of spiral vapour compression machine.That is, as long as make the ability (coagulability) of coagulator 9 there is to a certain degree more than needed, just can with dispose the reliable Leakage prevention steam in pressure independent ground 23 immersions to oil chamber that fluid be steam.
(the second mode of execution)
The spiral vapour compression machine 201 of the second mode of execution is described with reference to Fig. 2.The difference of the spiral vapour compression machine 201 of the second mode of execution and the spiral vapour compression machine 1 of the first mode of execution is the structure of coagulator and in the second mode of execution, does not use drain receiver 18 and use sparger 22 this point.In the second mode of execution, by sparger 22, force to attract leaked steam and water of condensation thereof.
As shown in Figure 2, through pipe arrangement 17, being arranged on coagulator 20 on the first hole 15 has accept the main body container 20a of refrigeration agent supply and the steam tube 20b arranging in main body container 20a.The refrigeration agent that is fed to main body container 20a is for example water, and the shape of main body container 20a is for example tubular.Steam tube 20b in main body container 20a is communicated with pipe arrangement 17, and its exhaust port is installed on sparger 22 through pipe arrangement 21.
And pipe arrangement 17, steam tube 20b and pipe arrangement 21 are sequentially connected with this from upstream side, pipe arrangement 17 is not communicated with main body container 20a, and similarly, main body container 20a is not communicated with pipe arrangement 21.The second hole 16 and the first mode of execution are equally to atmosphere opening.
Sparger 22 has main body 22a and nozzle 22b, and the front end of nozzle 22b inserts main body 22a.Main body 22a is for example tubular.Be configured to from the front end of nozzle 22b air, water or other fluid are ejected in main body 22a.Fluid by the front end ejection from nozzle 22b, becomes negative pressure in main body 22a, leaked steam and water of condensation thereof are forced to attract.
According to present embodiment, by being forced to attract leaked steam and water of condensation thereof by sparger 22, can make thus the pressure of the first seal space 11 further reduce.In addition, in the first embodiment, owing to being water seal, thus the liquid level in the main body container 9a of coagulator 9 need to be managed, but the in the situation that of present embodiment, the method for utilizing the pressure of sparger 22 to attract due to employing, so do not need water seal.That is, do not need the liquid level management in coagulator 20.In addition,, the in the situation that of present embodiment, the liquid level change owing to not paying particular attention to as the first mode of execution in the main body container of coagulator, so can reduce the capacity of main body container 20a, can form compact coagulator 20.
(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 present embodiment is installed air supply mechanism 19 in the second hole 16 of casing 2 that is arranged at the spiral vapour compression machine 1 of the first mode of execution.
Air supply mechanism 19 has air duct 25 and regulator 24, and regulator 24 is arranged on air duct 25.Regulator 24 is comprised of reduction valve, mist separator (ミ ス ト セ パ レ mono-タ), filter etc.The air that utilizes air supply mechanism 19 to examine oneself slightly illustrated air compressor is in the future fed to the second seal space 12 through the second hole 16.Utilization, from the air of air supply mechanism 19, produces pressure a little at the second seal space 12, and pushing up back thus will be from the leaked steam of clearance leakage 23 sides to oil chamber between rotor shaft 4 and the second annular seal parts 7.According to present embodiment, will will 23 sides over the effect of revolution seed cell, leaked steam top 5 sides of the second annular seal parts 7, than the situation of the first mode of execution (situation by the second hole 16 to atmosphere opening), improve to oil chamber.
Above, embodiments of the present invention have been described, still, the present invention is not limited to above-mentioned mode of execution, can in the scope described in claim, carry out various change and implement.
Claims (4)
1. a screw-type Steam Machine, it has:
Be provided with the casing of suction passage and discharge stream;
Helical rotor, it is accommodated in the rotor chamber forming in described casing, and compressed steam or the expansive force of steam is converted to rotating force;
The first ring-type sealed member, the second annular seal parts and the 3rd annular seal parts, they are at described rotor chamber and be formed between the oil chamber in described casing, from rotor chamber side, towards oil chamber's side, are arranged in order configuration;
The first hole, it is formed on described casing, is communicated with the first seal space between described the first ring-type sealed member and described the second annular seal parts;
The second hole, it is formed on described casing, is communicated with the second seal space between described the second annular seal parts and described the 3rd annular seal parts, and to atmosphere opening; And
Coagulator, it is installed on described the first hole, makes from the steam condensation that described in rotor chamber side direction, the first seal space leaks.
2. screw-type Steam Machine as claimed in claim 1, is characterized in that,
Described coagulator has accepts the main body container of steam supply and the refrigerant pipe arranging in this main body container,
Exhaust port at described main body container is provided with drain receiver.
3. screw-type Steam Machine as claimed in claim 1, is characterized in that,
Described coagulator has accepts the main body container of refrigeration agent supply and the steam tube arranging in this main body container,
Exhaust port at described steam tube is provided with the sparger that attracts steam and water of condensation thereof.
4. the screw-type Steam Machine as described in any one of claim 1～3, it is characterized in that, described screw-type Steam Machine has air supply mechanism, and described air supply mechanism is installed on described the second hole, and to described the 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 CN102373966A (en) | 2012-03-14 |
| CN102373966B true 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) |
Families Citing this family (6)
| 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 |
| 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 |
| CN106573186A (en) * | 2014-06-17 | 2017-04-19 | J·W·施莱法斯 | Concentrator and crystallizer evaporation system |
| US10451061B2 (en) * | 2016-05-06 | 2019-10-22 | Ingersoll-Rand Company | Compressor having non-contact and contact seals |
| CN109404282B (en) * | 2018-12-19 | 2020-09-04 | 苏州通润驱动设备股份有限公司 | Shaft seal structure of screw steam compressor and monitoring system thereof |
| CN109595169B (en) * | 2019-01-14 | 2019-12-13 | 冰轮环境技术股份有限公司 | sealing mechanism of oil-free screw compressor and control method |
Citations (4)
| 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 |
| CN101482115A (en) * | 2008-01-08 | 2009-07-15 | 株式会社神户制钢所 | Screw rod compressor |
| CN101592151A (en) * | 2008-05-27 | 2009-12-02 | 株式会社神户制钢所 | Screw fluid machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2000045991A (en) * | 1998-07-30 | 2000-02-15 | Mitsubishi Heavy Ind Ltd | Refrigerant lubricating system for refrigerator compressor |
| JP2003097487A (en) * | 2001-09-25 | 2003-04-03 | Hitachi Ltd | Centrifugal compressor |
| JP5348924B2 (en) * | 2008-04-09 | 2013-11-20 | 株式会社神戸製鋼所 | Screw fluid machine |
| 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 (4)
| 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 |
| CN101482115A (en) * | 2008-01-08 | 2009-07-15 | 株式会社神户制钢所 | Screw rod compressor |
| CN101592151A (en) * | 2008-05-27 | 2009-12-02 | 株式会社神户制钢所 | Screw fluid machine |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101288688B1 (en) | 2013-07-22 |
| CN102373966A (en) | 2012-03-14 |
| JP5390478B2 (en) | 2014-01-15 |
| KR20120002936A (en) | 2012-01-09 |
| JP2012013016A (en) | 2012-01-19 |
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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. |