CN101979880B - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN101979880B CN101979880B CN2010105425404A CN201010542540A CN101979880B CN 101979880 B CN101979880 B CN 101979880B CN 2010105425404 A CN2010105425404 A CN 2010105425404A CN 201010542540 A CN201010542540 A CN 201010542540A CN 101979880 B CN101979880 B CN 101979880B
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- CN
- China
- Prior art keywords
- tonifying
- hole
- male rotor
- helical
- compressor
- 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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Links
- 238000007599 discharging Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 abstract description 5
- 238000007906 compression Methods 0.000 abstract description 5
- 239000003507 refrigerant Substances 0.000 abstract 1
- 239000013589 supplement Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 9
- 238000005057 refrigeration Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
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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
- 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
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- 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
- F04C2250/00—Geometry
- F04C2250/10—Geometry of the inlet or outlet
- F04C2250/101—Geometry of the inlet or outlet of the inlet
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a screw compressor. The compressor is connected with an economizer; the economizer is connected with at least one air supply hole, and the air supply hole is formed on an air exhaust end seat of the compressor; the economizer axially supplies the air along a rotor from an air exhaust end face of the rotor; and the outline of the air supply hole coincides with dentiform and dedendum circles of the rotor. The screw compressor provided by the invention can supplement a gas refrigerant into the current compression chamber in a short time and eliminate or reduce potential air flow which flows back in a reverse direction.
Description
Technical field
The invention belongs to the Compressor Technology field, relate to a kind of helical-lobe compressor, relate in particular to a kind of helical-lobe compressor that comprises economizer.
Background technique
Helical-lobe compressor is made of pair of parallel, intermeshing yin, yang screw rod, is most widely used a kind of in the rotary compressor.In order to improve the working efficiency of compressor, use the economize on electricity circulatory system of band economizer usually.The cooling cycle system that has economizer can be consulted Fig. 1, Fig. 2.Fig. 1 has disclosed heat-exchanger type economizer cooling cycle system; Wherein, the left side figure among Fig. 1 is the composition schematic representation of heat-exchanger type economizer cooling cycle system, and right figure is the pressure-enthalpy diagram of heat-exchanger type economizer cooling cycle system.Fig. 2 has disclosed shwoot formula economizer cooling cycle system; Wherein, the left side figure among Fig. 2 is the composition schematic representation of shwoot formula economizer cooling cycle system, and right figure is the pressure-enthalpy diagram of shwoot formula economizer cooling cycle system.
See also Fig. 3, the economizer tonifying Qi hole of existing screw compressor all radially is provided with.Fig. 4 is the existing schematic representation that a tonifying Qi of economizer in economizer tonifying Qi hole radially is set.
As shown in Figure 4, rotor is finished a tonifying Qi, and the angle that needs rotation is the central angle of the terminal rotation of Fig. 4 rotor d1+a1 apart from correspondence.Wherein, d1 is the tonifying Qi hole width; A1 is the distance between the two adjacent rotor tooth top helixes, the corner of a corresponding screw channel.This shows that the corner of radial air inlet always can be greater than the corner of a screw channel.
Above-mentioned economizer tonifying Qi aperture is to the defective that is provided with: screw compressor tonifying Qi process time is long, can cause the potential backflow of gas, thereby causes a series of unfavorable results that influence performance such as pipe vibration, the heating of gas supplementing opening position, noise height.
Summary of the invention
Technical problem to be solved by this invention is: a kind of helical-lobe compressor is provided, can in shorter time the gaseous state refrigeration working medium be mended into current compression chamber, eliminate or reduce the air-flow of potential reverse reflux.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of helical-lobe compressor, described compressor connects an economizer; Described economizer is connected with at least one tonifying Qi hole, and described tonifying Qi hole is arranged on the compressor air-discharging end seat; Described economizer is from rotor exhaust end face, along the rotor axial tonifying Qi.
As a preferred embodiment of the present invention, profile and rotor tooth form, the root circle in described tonifying Qi hole match.
As a preferred embodiment of the present invention, the dual-side of described tonifying Qi hole cross section matches with the part of compressor male rotor dual-side respectively; Make the first side of male rotor rotate to first border in tonifying Qi hole, when being about to begin tonifying Qi, the appropriate section of most of first side with male rotor, first border in tonifying Qi hole is coincide; The second side of male rotor rotates to second border in tonifying Qi hole, when being about to disconnect with the tonifying Qi hole, the appropriate section of most of second side with male rotor, second border in tonifying Qi hole is identical.
As a preferred embodiment of the present invention, described tonifying Qi hole is triangle or circle or rectangle or flat bar.
As a preferred embodiment of the present invention, described economizer is provided with a plurality of tonifying Qi hole, and described a plurality of tonifying Qi hole is arranged on the compressor air-discharging end seat equably.
As a preferred embodiment of the present invention, described helical-lobe compressor is double-screw compressor or three helical-lobe compressors.
As a preferred embodiment of the present invention, the tonifying Qi process of described helical-lobe compressor comprises:
S1, male rotor teeth groove and compressor tonifying Qi hole disconnect;
S2, male rotor rotate to a border in tonifying Qi hole, are about to begin tonifying Qi, and promptly the male rotor teeth groove is about to and economizer tonifying Qi hole UNICOM;
S3, male rotor continue rotation, arrive the tonifying Qi of tonifying Qi Kongzui large size;
S4, male rotor rotate to another border in tonifying Qi hole, and tonifying Qi finishes, and throw off in male rotor teeth groove and economizer tonifying Qi hole;
S5, commentaries on classics step S1 finish until tonifying Qi.
Beneficial effect of the present invention is: the helical-lobe compressor that the present invention proposes, can in shorter time, the gaseous state refrigeration working medium be mended into current compression chamber, and eliminate and maybe will lack potential back draught; Thereby artificially improve the performance of economizer system.
Description of drawings
Fig. 1 is a heat-exchanger type economizer cooling cycle system schematic representation.
Fig. 2 is a shwoot formula economizer cooling cycle system schematic representation.
Fig. 3 is the structural representation of existing economizer tonifying Qi aperture to tonifying Qi.
Fig. 4 is the existing schematic representation that a tonifying Qi process of economizer in economizer tonifying Qi hole radially is set.
Fig. 5 is the appearance profile schematic representation in tonifying Qi hole under one embodiment of the present invention.
Fig. 6 is the appearance profile schematic representation in tonifying Qi hole under the another embodiment of the present invention.
Position view when Fig. 7 is male rotor teeth groove and suction port disconnection.
Position view when Fig. 8 is about to suction port UNICOM for the male rotor teeth groove.
Position view when Fig. 9 is male rotor teeth groove and suction port UNICOM.
Position view when Figure 10 is male rotor teeth groove and suction port disengagement.
Figure 11 is the schematic representation of a tonifying Qi male rotor of economizer rotary distance.
Figure 12 is the structural representation of helical-lobe compressor of the present invention part.
Figure 13 is the position view of helical-lobe compressor suction port of the present invention.
Embodiment
Describe the preferred embodiments of the present invention in detail below in conjunction with accompanying drawing.
Embodiment one
See also Figure 12, Figure 13, the present invention has disclosed a kind of helical-lobe compressor, and described helical-lobe compressor mainly comprises body 20, and male rotor 30, female rotor 40 in the body 20.Described compressor connects an economizer; Described economizer is connected with at least one tonifying Qi hole 10, and described tonifying Qi hole 10 is arranged on the compressor air-discharging end seat 50.Described economizer is from male rotor 30 exhaust end faces, along male rotor 30 axial tonifying Qi.Described helical-lobe compressor is double-screw compressor or three helical-lobe compressors.
See also Fig. 5, profile and rotor tooth form, the root circle in described tonifying Qi hole match.Particularly, the dual-side of described tonifying Qi hole cross section matches with the part of compressor male rotor dual-side respectively; Make the first side of male rotor rotate to first border in tonifying Qi hole, when being about to begin tonifying Qi, the appropriate section of most of first side with male rotor, first border 101 in tonifying Qi hole is coincide; The second side of male rotor rotates to second border in tonifying Qi hole, when being about to disconnect with the tonifying Qi hole, the appropriate section of most of second side with male rotor, second border 102 in tonifying Qi hole is identical; The major part on the base 103 in tonifying Qi hole and the root circle of male rotor coincide.
Certainly, described tonifying Qi hole can also roughly triangular in shape or circular or rectangle or flat bar.See also Fig. 6, Fig. 6 has disclosed a kind of profile outline in tonifying Qi hole.
In addition, described economizer can be provided with a plurality of tonifying Qi hole, and described a plurality of tonifying Qi hole is arranged on the compressor air-discharging end seat equably.
The tonifying Qi process of described helical-lobe compressor comprises:
S1, male rotor teeth groove and compressor tonifying Qi hole disconnect (as shown in Figure 7);
S2, male rotor rotate to a border in tonifying Qi hole, are about to begin tonifying Qi, and promptly the male rotor teeth groove is about to and economizer tonifying Qi hole UNICOM (as shown in Figure 8);
S3, male rotor continue rotation, arrive tonifying Qi Kongzui large size tonifying Qi (as shown in Figure 9);
S4, male rotor rotate to another border (as shown in figure 10) in tonifying Qi hole gradually, and this tonifying Qi finishes, and throw off in male rotor teeth groove and economizer tonifying Qi hole;
S5, commentaries on classics step S1 finish until tonifying Qi.
See also Figure 11, owing to be from the tonifying Qi of male rotor exhaust end face, be axial tonifying Qi, its corner is always less than the corner of a screw channel (the rotary distance l＜a1 of Rotor terminal, a1 be the corner of a corresponding screw channel then) when tonifying Qi hole orifice area is not more than the rotor tooth form area; And the corner of radial air inlet always can be greater than the corner of a screw channel.Therefore than radial air inlet, axial admission just can be mended gas into current compression chamber in the shortest time, thereby makes best performance.
In sum, the helical-lobe compressor that the present invention proposes can be mended the gaseous state refrigeration working medium into current compression chamber in shorter time, eliminates and maybe will lack potential back draught; Thereby artificially improve the performance of economizer system.
Here description of the invention and application is illustrative, is not to want with scope restriction of the present invention in the above-described embodiments.Here disclosed embodiment's distortion and change are possible, and the various parts of embodiment's replacement and equivalence are known for those those of ordinary skill in the art.Those skilled in the art are noted that under the situation that does not break away from spirit of the present invention or substantive characteristics, and the present invention can be with other form, structure, layout, ratio, and realize with other assembly, material and parts.Under the situation that does not break away from the scope of the invention and spirit, can carry out other distortion and change here to disclosed embodiment.
Claims (7)
1. a helical-lobe compressor is characterized in that, described compressor connects an economizer; Described economizer is connected with at least one tonifying Qi hole, and described tonifying Qi hole is arranged on the compressor air-discharging end seat; Described economizer is from male rotor exhaust end face, along the axial tonifying Qi of male rotor; The dual-side of described tonifying Qi hole cross section matches with the part of compressor male rotor dual-side respectively;
Make the first side of male rotor rotate to first border in tonifying Qi hole, when being about to begin tonifying Qi, the appropriate section of most of first side with male rotor, first border in tonifying Qi hole is coincide;
The second side of male rotor rotates to second border in tonifying Qi hole, when being about to disconnect with the tonifying Qi hole, the appropriate section of most of second side with male rotor, second border in tonifying Qi hole is identical.
2. helical-lobe compressor according to claim 1 is characterized in that:
Profile and male rotor profile of tooth, the root circle in described tonifying Qi hole match.
3. helical-lobe compressor according to claim 1 is characterized in that:
The major part on the base in tonifying Qi hole and the root circle of male rotor coincide.
4. helical-lobe compressor according to claim 1 is characterized in that:
Described tonifying Qi hole is triangle or circle or rectangle or flat bar.
5. according to claim 1 or 2 or 3 or 4 described helical-lobe compressors, it is characterized in that:
Described economizer is provided with a plurality of tonifying Qi hole, and described a plurality of tonifying Qi hole is arranged on the compressor air-discharging end seat equably.
6. according to claim 1 or 2 or 3 or 4 described helical-lobe compressors, it is characterized in that:
Described helical-lobe compressor is double-screw compressor or three helical-lobe compressors.
7. helical-lobe compressor according to claim 1 is characterized in that:
The tonifying Qi process of described helical-lobe compressor comprises:
S1, male rotor teeth groove and tonifying Qi hole disconnect;
S2, male rotor rotate to a border in tonifying Qi hole, are about to begin tonifying Qi, and promptly the male rotor teeth groove is about to and tonifying Qi hole UNICOM;
S3, male rotor continue rotation, arrive the tonifying Qi of tonifying Qi Kongzui large size;
S4, male rotor rotate to another border in tonifying Qi hole, and this tonifying Qi finishes, and throw off in male rotor teeth groove and tonifying Qi hole;
S5, commentaries on classics step S1 finish until tonifying Qi.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105425404A CN101979880B (en) | 2010-04-26 | 2010-11-02 | Screw compressor |
| EP10850592.6A EP2565456B1 (en) | 2010-04-26 | 2010-12-01 | Screw compressor |
| US13/148,943 US20120058001A1 (en) | 2010-04-26 | 2010-12-01 | Screw compressor with economizer |
| PCT/CN2010/079353 WO2011134261A1 (en) | 2010-04-26 | 2010-12-01 | Screw compressor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010156279.4 | 2010-04-26 | ||
| CN201010156279 | 2010-04-26 | ||
| CN2010105425404A CN101979880B (en) | 2010-04-26 | 2010-11-02 | Screw compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101979880A CN101979880A (en) | 2011-02-23 |
| CN101979880B true CN101979880B (en) | 2013-07-31 |
Family
ID=43600405
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206010451U Expired - Lifetime CN201836053U (en) | 2010-04-26 | 2010-11-02 | Screw rod compressor |
| CN2010105425404A Active CN101979880B (en) | 2010-04-26 | 2010-11-02 | Screw compressor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206010451U Expired - Lifetime CN201836053U (en) | 2010-04-26 | 2010-11-02 | Screw rod compressor |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20120058001A1 (en) |
| EP (1) | EP2565456B1 (en) |
| CN (2) | CN201836053U (en) |
| WO (1) | WO2011134261A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836053U (en) * | 2010-04-26 | 2011-05-18 | 上海维尔泰克螺杆机械有限公司 | Screw rod compressor |
| JP5871578B2 (en) * | 2011-11-17 | 2016-03-01 | 三菱電機株式会社 | Screw compressor |
| CN106401965B (en) * | 2016-06-24 | 2019-03-22 | 珠海格力电器股份有限公司 | A kind of exhaust bearing block and helical-lobe compressor |
| CN106949051B (en) | 2017-03-20 | 2018-11-30 | 珠海格力电器股份有限公司 | Compressor slide valve and helical-lobe compressor with it |
| CN106979160A (en) * | 2017-04-26 | 2017-07-25 | 珠海格力电器股份有限公司 | Helical-lobe compressor, air-conditioning device and refrigerating plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344131Y (en) * | 2009-01-22 | 2009-11-11 | 中国船舶重工集团公司第七一一研究所 | Air exhaust end seat with variable internal compression ratio for screw compressor |
| CN101581302A (en) * | 2009-06-15 | 2009-11-18 | 大连冷冻机股份有限公司 | Hydrojet cooling screw type refrigerating compressor set for ship |
| CN101581303A (en) * | 2009-06-15 | 2009-11-18 | 大连冷冻机股份有限公司 | Screw type refrigerating compressor for ship |
| CN201836053U (en) * | 2010-04-26 | 2011-05-18 | 上海维尔泰克螺杆机械有限公司 | Screw rod compressor |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1007076B (en) * | 1987-02-27 | 1990-03-07 | 武汉冷冻机厂 | Exhaust end base of oil injection threaded bolt refrigerating compressor |
| US5775117A (en) * | 1995-10-30 | 1998-07-07 | Shaw; David N. | Variable capacity vapor compression cooling system |
| US6105378A (en) * | 1995-10-30 | 2000-08-22 | Shaw; David N. | Variable capacity vapor compression cooling system |
| JP2001176534A (en) * | 1999-12-17 | 2001-06-29 | Toyota Autom Loom Works Ltd | Air supply device for fuel cell |
| US6638042B1 (en) * | 2002-05-08 | 2003-10-28 | Carrier Corporation | Asymmetric porting for multi-rotor screw compressor |
| US7121814B2 (en) * | 2004-09-30 | 2006-10-17 | Carrier Corporation | Compressor sound suppression |
| US7156624B2 (en) * | 2004-12-09 | 2007-01-02 | Carrier Corporation | Compressor sound suppression |
| JP5014880B2 (en) * | 2007-05-31 | 2012-08-29 | 株式会社前川製作所 | Single screw multistage compressor and refrigeration / cooling system using the same |
| JP4183021B1 (en) * | 2007-06-11 | 2008-11-19 | ダイキン工業株式会社 | Compressor and refrigeration equipment |
-
2010
- 2010-11-02 CN CN2010206010451U patent/CN201836053U/en not_active Expired - Lifetime
- 2010-11-02 CN CN2010105425404A patent/CN101979880B/en active Active
- 2010-12-01 WO PCT/CN2010/079353 patent/WO2011134261A1/en active Application Filing
- 2010-12-01 EP EP10850592.6A patent/EP2565456B1/en active Active
- 2010-12-01 US US13/148,943 patent/US20120058001A1/en not_active Abandoned
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344131Y (en) * | 2009-01-22 | 2009-11-11 | 中国船舶重工集团公司第七一一研究所 | Air exhaust end seat with variable internal compression ratio for screw compressor |
| CN101581302A (en) * | 2009-06-15 | 2009-11-18 | 大连冷冻机股份有限公司 | Hydrojet cooling screw type refrigerating compressor set for ship |
| CN101581303A (en) * | 2009-06-15 | 2009-11-18 | 大连冷冻机股份有限公司 | Screw type refrigerating compressor for ship |
| CN201836053U (en) * | 2010-04-26 | 2011-05-18 | 上海维尔泰克螺杆机械有限公司 | Screw rod compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| US20120058001A1 (en) | 2012-03-08 |
| CN201836053U (en) | 2011-05-18 |
| CN101979880A (en) | 2011-02-23 |
| WO2011134261A1 (en) | 2011-11-03 |
| EP2565456A4 (en) | 2017-05-17 |
| EP2565456A1 (en) | 2013-03-06 |
| EP2565456B1 (en) | 2018-08-01 |
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