CN107182214A - Dry vacuum pump with screw rotor and groove - Google Patents
Dry vacuum pump with screw rotor and groove Download PDFInfo
- Publication number
- CN107182214A CN107182214A CN201680002535.XA CN201680002535A CN107182214A CN 107182214 A CN107182214 A CN 107182214A CN 201680002535 A CN201680002535 A CN 201680002535A CN 107182214 A CN107182214 A CN 107182214A
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- China
- Prior art keywords
- rotor
- screw rod
- groove
- driven
- driving screw
- 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
-
- 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
- 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
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
-
- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The present invention relates to the dry vacuum pump with screw rotor and groove, the above-mentioned dry vacuum pump with screw rotor and groove includes：Driving screw rod, is provided with the rotor rotated centered on driving shaft；Driven screw, is provided with the rotor rotated centered on driven shaft, is rotated in the way of being meshed with above-mentioned driving screw rod；Housing, is built-in with above-mentioned driving screw rod and driven screw；And at least two grooves, it is arranged at the inner peripheral surface of above-mentioned housing, in above-mentioned driving screw rod driving screw rod primary rotor is disposed with from fluid sucting to the direction in fluid exhaust portion, driving screw rod secondary rotor, driving screw rod three-level rotor, driving screw rod level Four rotor, driving screw rod Pyatyi rotor, in above-mentioned driven screw the first groove is disposed with from fluid sucting to the direction in fluid exhaust portion, second groove, 3rd groove, 4th groove, the efficiency of pump can be improved so as to have, and under equal dynamic condition, high vacuum can be realized by height rotation, the effect of power can be reduced simultaneously.
Description
Technical field
The present invention relates to dry vacuum pump, in more detail, it is related to the following dry vacuum pump with screw rotor and groove,
That is, optimization forms the shape and integrated structure of the blade of the screw rotor of vacuum in dry vacuum pump, by the inside of housing
Form groove to realize high vacuum and high efficiency, and prevent from condensing and corrode.
Background technology
In general, vavuum pump is the device for removing the gas molecule in closed container, by subatmospheric
Low pressure suction, the vacuum improved in container is ejected after compressed gas into air.This vavuum pump is broadly divided into difference
The mechanical vacuum pump and diffusion/ionic pump represented with dry type and wet type.To realize high vacuum, diffusion/ionic pump is using oil
Or the wet pump of mercury, unlike this, although the vacuum of mechanical vacuum pump is relatively low, but due to being without using the dry of oil
Formula type pump, its structure is relatively easy, durability is outstanding, and due to showing stable vacuum, can be with user of service
The easily low advantage of operation, standing charges, therefore be widely used in each industrial field.But, in dry vacuum pump, polymerization
In the case that thing, monomer, powder, dust etc. are together condensed with condensability steam, screw rod and housing are easily damaged, and are had in inflow
In the case of other corrosive process materials, the problem of there is generation internal corrosion.
Korean granted patent publication the 10-1074633rd discloses the water-cooled dry vacuum pump for being provided with two grades of screw rods,
The above-mentioned water-cooled dry vacuum pump for being provided with two grades of screw rods includes：Driving screw rod rotor and driven screw rotor, in a pair of masters
Moving axis and driven shaft are provided with one-level screw rod and two grades of screw rods, and above-mentioned one-level screw rod and two grades of screw rods are with the length of different driving screws
Degree is processed, and is formed as one with above-mentioned a pair of driving shafts and driven shaft；Front end lid, including with cooling water inlet,
The timing gear that oil sealing, single-bearing, the safe axle of leakage for preventing gas are fastened in the way of flange is connected；Front end frame
Frame, the mechanical sealing member and double-row bearing of the leakage by the water jacket of outlet, for preventing gas are constituted；Body, in body
Top is formed with suction inlet and cooling water outlet, and cooling water circulation space is respectively formed with the two sides on the top of body,
The guide plate rocked produced during for preventing above-mentioned main shaft and the work or setting from axle is installed in the left side of body,
Oil sealing, lip-type seal part, roller bearing are installed in the right end being fastened with above-mentioned main shaft and from axle；And grease cap
Body, is installed on the right-hand end of above-mentioned body, the inside for sealing above-mentioned body.But this is recorded also described above, however it remains spiral shell
Bar and housing be impaired and the problem of internal corrosion.
The content of the invention
Technical problem
To solve the above problems, it is an object of the invention to provide the following dry vacuum with screw rotor and groove
Pump, i.e. compared with being provided with the dry vacuum pump of a screw rod, can improve the efficiency of pump, and under equal dynamic condition, can
High vacuum is realized by height rotation, while power can be reduced, in the case where foreign matter flows into inside, spiral shell can be also minimized
Bar and the impaired and internal corrosion of housing.
Solution to problem
To achieve the above object, the dry vacuum pump with screw rotor and groove of the invention includes：Driving screw rod, is set
There is the rotor of more than three rotated centered on driving shaft；Driven screw, is provided with three rotated centered on driven shaft
Rotor above, is rotated in the way of being meshed with above-mentioned driving screw rod；Housing, is built-in with above-mentioned driving screw rod and driven spiral shell
Bar；At least two grooves, are arranged at the inner peripheral surface of above-mentioned housing.
Present invention is yet further characterised in that, above-mentioned groove is horizontally set between driving shaft and driven shaft, more specifically, upper
State driving screw rod and be disposed with driving screw rod primary rotor, driving screw rod two from fluid sucting to the direction in fluid exhaust portion
Level rotor, driving screw rod three-level rotor, driving screw rod level Four rotor, driving screw rod Pyatyi rotor, in above-mentioned driven screw from stream
Body sucting is disposed with driven screw driven screw primary rotor, two grades of driven screw to the direction in fluid exhaust portion and turned
Son, driven screw three-level rotor, driven screw level Four rotor, driven screw Pyatyi rotor, turn being provided with two grades of driving screw rod
The inner peripheral surface of housing of son and driven screw secondary rotor is provided with the first groove, is being provided with driving screw rod three-level rotor and driven
The inner peripheral surface of the housing of screw rod three-level rotor is provided with the second groove, is being provided with driving screw rod level Four rotor and driven screw level Four
The inner peripheral surface of the housing of rotor is provided with the 3rd groove, is being provided with the shell of driving screw rod Pyatyi rotor and driven screw Pyatyi rotor
The inner peripheral surface of body is provided with the 4th groove.
It is another feature that, above-mentioned groove is horizontally set between driving shaft and driven shaft, and with rotor
The parallel mode of gradient is tilted.
The effect of invention
As described above, the dry vacuum pump with screw rotor and groove of the present invention has following effect, i.e. with setting
The dry vacuum pump for having a screw rod is compared, and can improve the efficiency of pump, and under equal dynamic condition, can by height rotation come
High vacuum is realized, while power can be reduced.Also, prevent condensation that the inside in housing occurs and flexibly move and remove
The condensate generated when condensing so that in the case where foreign matter flows into inside, also minimize screw rod and housing it is impaired with
And internal corrosion.
Brief description of the drawings
Fig. 1 is the transverse sectional view of the existing water-cooled dry vacuum pump for being provided with two grades of screw rods.
Fig. 2 is the parallel figure of pressure and temperature of the existing dry vacuum pump with screw rotor.
Fig. 3 is the side view of the driving screw rod of the dry vacuum pump with screw rotor and groove of the present invention.
Fig. 4 is the transverse sectional view of the dry vacuum pump with screw rotor and groove of the present invention.
Fig. 5 is the S-S ' sectional views of the dry vacuum pump with screw rotor and groove of the present invention.
Fig. 6 is the transverse sectional view of the embodiment of the dry vacuum pump with screw rotor and groove of the present invention.
Embodiment
Fig. 4 and Fig. 5 are respectively dry vacuum pump transverse sectional view and the S-S ' portions with screw rotor and groove of the present invention
The sectional view divided, description below is carried out with reference to its structure to the present invention.
Dry vacuum pump with screw rotor and groove is characterised by, including：Driving screw rod 10, is provided with driving shaft
The rotor of more than three rotated centered on 11；Driven screw 20, is provided with more than three rotated centered on driven shaft 21
Rotor, rotated in the way of being meshed with above-mentioned driving screw rod 10；Housing 30, is built-in with above-mentioned driving screw rod 10 and driven spiral shell
Bar 20；And at least two grooves 40, it is arranged at the inner peripheral surface of above-mentioned housing 30.
Also, above-mentioned groove 40 is characterised by, is horizontally set between driving shaft 11 and driven shaft 21.
Fig. 2 is the parallel figure of pressure and temperature of the existing dry vacuum pump with screw rotor, and Fig. 3 is tool of the invention
There is the side view of the driving screw rod of the dry vacuum pump of screw rotor and groove, principle of present invention is said as follows with reference to it
It is bright.
In general screw rod dry vacuum pump, the gas flowed into by fluid sucting A is by primary rotor a and two grades
Rotor b proceeds by compression.Now, the condensation for easily occurring gas because of relatively low temperature and high vacuum state.In contrast to this,
Three-level rotor c and the level Four rotor d compression processes formal by performing obtain higher temperature and low vacuum state, so that aobvious
Write the generation for reducing gas condensation.Also, Pyatyi rotor e is performed to be vented with the pressure high compared to atmospheric pressure to fluid exhaust portion B
Process.As described above, to solve to produce because in the condensation that the inside of the dry vacuum pump case with screw rotor occurs
The problem of raw, it is especially desirable to prevent from condensing in primary rotor a and secondary rotor b position or remove generated by condensation cold
The countermeasure of condensate.
Fig. 6 is the transverse sectional view of the embodiment of the dry vacuum pump with screw rotor and groove of the present invention, with reference to it
Structure to the embodiment for solving the above problems carries out description below.
Dry vacuum pump with screw rotor and groove is characterised by, including：Driving screw rod 10, is provided with driving shaft
The rotor of more than three rotated centered on 11；Driven screw 20, is provided with more than three rotated centered on driven shaft 21
Rotor, rotated in the way of being meshed with above-mentioned driving screw rod 10；Housing 30, is built-in with above-mentioned driving screw rod 10 and driven spiral shell
Bar 20；And at least two grooves 40, the inner peripheral surface of above-mentioned housing 30 is arranged at, in above-mentioned driving screw rod 10 from fluid sucting A
Driving screw rod primary rotor 10a, driving screw rod secondary rotor 10b, driving screw rod are disposed with to fluid exhaust portion B direction
Three-level rotor 10c, driving screw rod level Four rotor 10d, driving screw rod Pyatyi rotor 10, are sucked in above-mentioned driven screw 20 from fluid
The direction of from portion A to fluid exhaust portion B is disposed with driven screw primary rotor 20a, driven screw secondary rotor 20b, driven
Screw rod three-level rotor 20c, driven screw level Four rotor 20d, driven screw Pyatyi rotor 20e, are being provided with two grades of driving screw rod
The inner peripheral surface of rotor 10b and driven screw secondary rotor 20b housing 30 is provided with the first groove 41, is being provided with driving screw rod three
The inner peripheral surface of level rotor 10c and driven screw three-level rotor 20c housing 30 is provided with the second groove 42, is being provided with driving screw rod
The inner peripheral surface of level Four rotor 10d and driven screw level Four rotor 20d housing 30 is provided with the 3rd groove 43, is being provided with active spiral shell
The inner peripheral surface of bar Pyatyi rotor 10e and driven screw Pyatyi rotor 20e housing 30 is provided with the 4th groove 44.
Pressure by the above-mentioned relative reduction of first groove 41, thus it can be prevented that the inside for flowing into housing 30 foreign matter it is cold
It is solidifying.But, in the case where the area of the first groove 41 is fully big, prevent condensation effect to be although improved, but there is vavuum pump
Effect the problem of reduce, therefore the area of groove is restricted.Thus, what is departed from the first the preventing condensation effect of groove 41 and occur is cold
Condensate is moved to fluid exhaust portion B sides by the second groove 42, the 3rd groove 43.The condensate moved in the manner is because of product
Storage is easily discharged in the 4th groove 44.
Moreover, as shown in figure 5, set the present invention there is the dry vacuum pump of screw rotor and groove in the case of, by
The part towards bottom is only arranged in above-mentioned groove 40, condensate is put aside in each groove 40 by screw rotor and gravity, if savings
Extremely it is higher than the height of groove 40, then condensate is forced to extract by screw rotor, so that groove 41 of the condensate from fluid sucting A sides
Move and be discharged to the groove 44 of fluid exhaust portion B sides successively.
Thus, have the following effects that, i.e. can prevent because condensate can not be discharged in the inside of vacuum pump case 30 and by
Savings is so as to the screw rod occurred and the breakage of the inside of housing.
Except above preferred embodiment, for two grades of general screw rod dry vacuum pumps, following structure can be applicable,
That is, the inner shell setting groove 40 at the rotor position frequently condensed in fluid sucting A sides, and to fluid exhaust portion B
Groove 40 is set gradually, to discharge condensate.Also, above-mentioned groove 40 is horizontally set between driving shaft 11 and driven shaft 21, and energy
It is enough to be tilted in the mode parallel with the gradient of rotor, in addition it is also possible to be applicable known a variety of groove shapes.
The present invention is shown and illustrated for specific embodiment and Application Example, but without departing from additional hair
Bright claimed scope is come in the thought of invention and scope that show, and general technical staff of the technical field of the invention can be with
Carry out a variety of transformations and change.
The explanation of reference
A：Fluid sucting B：Fluid exhaust portion
a：Primary rotor b：Secondary rotor
c：Three-level rotor d：Level Four rotor
e：Pyatyi rotor 10：Driving screw rod
10a：Driving screw rod primary rotor 10b：Driving screw rod secondary rotor
10c：Driving screw rod three-level rotor 10d：Driving screw rod level Four rotor
10e：Driving screw rod Pyatyi rotor 11：Driving shaft
20：Driven screw 20a：Driven screw primary rotor
20b：Driven screw secondary rotor 20c：Driven screw three-level rotor
20d：Driven screw level Four rotor 20e：Driven screw Pyatyi rotor
21：Driven shaft 30：Housing
40：Groove 41：First groove
42：Second groove 43：3rd groove
44：4th groove
Claims (1)
1. a kind of dry vacuum pump with screw rotor and groove, including：
Driving screw rod (10), is provided with the rotor of more than three rotated centered on driving shaft (11)；
Driven screw (20), is provided with the rotor of more than three rotated centered on driven shaft (21), with above-mentioned active spiral shell
The mode that bar (10) is meshed rotates；
Housing (30), is built-in with above-mentioned driving screw rod (10) and driven screw (20)；And
Groove (40), is horizontally set between driving shaft (11) and driven shaft (21) in the inner peripheral surface of above-mentioned housing (30),
The above-mentioned dry vacuum pump with screw rotor and groove is characterised by,
In above-mentioned driving screw rod (10) driving screw rod is disposed with from fluid sucting (A) to the direction of fluid exhaust portion (B)
Primary rotor (10a), driving screw rod secondary rotor (10b), driving screw rod three-level rotor (10c), driving screw rod level Four rotor
(10d), driving screw rod Pyatyi rotor (10e),
In above-mentioned driven screw (20) driven screw is disposed with from fluid sucting (A) to the direction of fluid exhaust portion (B)
Primary rotor (20a), driven screw secondary rotor (20b), driven screw three-level rotor (20c), driven screw level Four rotor
(20d), driven screw Pyatyi rotor (20e),
Set in the inner peripheral surface for the housing (30) for being provided with driving screw rod secondary rotor (10b) and driven screw secondary rotor (20b)
The first groove (41) is equipped with,
Set in the inner peripheral surface for the housing (30) for being provided with driving screw rod three-level rotor (10c) and driven screw three-level rotor (20c)
The second groove (42) is equipped with,
Set in the inner peripheral surface for the housing (30) for being provided with driving screw rod level Four rotor (10d) and driven screw level Four rotor (20d)
The 3rd groove (43) is equipped with,
Set in the inner peripheral surface for the housing (30) for being provided with driving screw rod Pyatyi rotor (10e) and driven screw Pyatyi rotor (20e)
It is equipped with the 4th groove (44).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2016-0005228 | 2016-01-15 | ||
| KR1020160005228A KR101641887B1 (en) | 2016-01-15 | 2016-01-15 | Dry Vacuum Pump having Screw Rotor and Groove |
| PCT/KR2016/008552 WO2017122894A1 (en) | 2016-01-15 | 2016-08-03 | Dry vacuum pump having screw rotor and groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107182214A true CN107182214A (en) | 2017-09-19 |
Family
ID=56616819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680002535.XA Pending CN107182214A (en) | 2016-01-15 | 2016-08-03 | Dry vacuum pump with screw rotor and groove |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR101641887B1 (en) |
| CN (1) | CN107182214A (en) |
| WO (1) | WO2017122894A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190017111A (en) | 2017-08-10 | 2019-02-20 | 이영수 | Dry Screw Vacuum Pump having Drain Chamber and Grooves and Mechanical Seals |
| DE202018000178U1 (en) * | 2018-01-12 | 2019-04-15 | Leybold Gmbh | compressor |
| KR102694989B1 (en) * | 2022-04-27 | 2024-08-13 | 배형탁 | Dry vacuum pump with continuously variable screw rotor |
| KR20230159908A (en) | 2022-05-16 | 2023-11-23 | 주식회사 뉴스코 베큠 | Dry vacuum pump for oil vapor recovery with improved sealing performance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1205666A2 (en) * | 2000-11-10 | 2002-05-15 | Ebara Corporation | Screw-type dry vacuum pump |
| KR101074633B1 (en) * | 2011-07-11 | 2011-10-18 | 주식회사 뉴스코 베큠 | The water cooling dry vacuum pump which has two phase screw type |
| CN102828952A (en) * | 2012-07-24 | 2012-12-19 | 中国科学院沈阳科学仪器股份有限公司 | Dry type vacuum pump unit and a dry type vacuum pump with same |
| CN103062056A (en) * | 2012-12-29 | 2013-04-24 | 中国科学院沈阳科学仪器股份有限公司 | Screw rod type dry vacuum pump with combined screw rod rotor |
| CN203926013U (en) * | 2014-05-30 | 2014-11-05 | 北京威鹏晟科技有限公司 | A kind of variable pitch dry screw vacuum pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3843846B2 (en) * | 2002-01-21 | 2006-11-08 | 石川島播磨重工業株式会社 | Twin screw type conveyor |
| KR20050105365A (en) * | 2004-04-30 | 2005-11-04 | 삼성전자주식회사 | Cooling apparatus of screw type dry vaccum pump and method of cooling the same |
| KR101286187B1 (en) * | 2011-11-08 | 2013-07-15 | 데이비드 김 | Multistage dry vaccum pump |
-
2016
- 2016-01-15 KR KR1020160005228A patent/KR101641887B1/en active IP Right Grant
- 2016-08-03 CN CN201680002535.XA patent/CN107182214A/en active Pending
- 2016-08-03 WO PCT/KR2016/008552 patent/WO2017122894A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1205666A2 (en) * | 2000-11-10 | 2002-05-15 | Ebara Corporation | Screw-type dry vacuum pump |
| KR101074633B1 (en) * | 2011-07-11 | 2011-10-18 | 주식회사 뉴스코 베큠 | The water cooling dry vacuum pump which has two phase screw type |
| CN102828952A (en) * | 2012-07-24 | 2012-12-19 | 中国科学院沈阳科学仪器股份有限公司 | Dry type vacuum pump unit and a dry type vacuum pump with same |
| CN103062056A (en) * | 2012-12-29 | 2013-04-24 | 中国科学院沈阳科学仪器股份有限公司 | Screw rod type dry vacuum pump with combined screw rod rotor |
| CN203926013U (en) * | 2014-05-30 | 2014-11-05 | 北京威鹏晟科技有限公司 | A kind of variable pitch dry screw vacuum pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017122894A1 (en) | 2017-07-20 |
| KR101641887B1 (en) | 2016-07-25 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170919 |