CN105386980A - Screw compressor and air conditioning system - Google Patents
Screw compressor and air conditioning system Download PDFInfo
- Publication number
- CN105386980A CN105386980A CN201510861068.3A CN201510861068A CN105386980A CN 105386980 A CN105386980 A CN 105386980A CN 201510861068 A CN201510861068 A CN 201510861068A CN 105386980 A CN105386980 A CN 105386980A
- Authority
- CN
- China
- Prior art keywords
- helical
- lobe compressor
- compressor
- piston chamber
- groove structure
- 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.)
- Granted
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 10
- 230000006835 compression Effects 0.000 claims abstract description 17
- 238000007906 compression Methods 0.000 claims abstract description 17
- 238000003754 machining Methods 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
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
- 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
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/24—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C28/26—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The invention relates to the technical field of compressors, in particular to a screw compressor and an air conditioning system. The screw compressor comprises a machine body and a rotor, wherein a compression cavity for accommodating the rotor is arranged in the machine body, and an exhaust structure for communicating the compression cavity with an air suction end is arranged on the outer wall of the compression cavity. Simultaneously, this application still provides the air conditioning system who adopts above-mentioned helical-lobe compressor. According to the invention, the exhaust structure communicated with the compression cavity and the air suction end is arranged on the machine body, so that partial gas can be bypassed to the air suction end, and the purpose of adjusting the volume flow is achieved. Meanwhile, the exhaust structure arranged on the machine body has the advantages of low machining precision, small difficulty and low cost.
Description
Technical field
The present invention relates to Compressor Technology field, particularly relate to a kind of helical-lobe compressor and air-conditioning system.
Background technique
Current most of helical-lobe compressor producer is for realizing seriation and ensureing versatility, under normal circumstances, all under the prerequisite ensureing foundry goods versatility, the volume flow of compressor is regulated by adjustment rotor, thus realize the seriation of product, and then the demand of client to different volume flow can be met.
The adjustment of helical-lobe compressor volume flow determines primarily of rotor parameter, as length, diameter etc.For ensureing the versatility of body, artificer normally adjusts the volume flow of compressor by adjustment rotor length.As shown in Figure 1 and Figure 2, under the prerequisite ensureing other parameter constants of rotor, spool by-pass segment length M< spool by-pass segment length L, its volume flow corresponding naturally can be low one grade.
Although by the adjustment that the length of adjustment rotor can realize compressor volume flow, the rotor machining required precision needed for the capacity regulating of above-mentioned compressor is high, difficulty large and have higher cost.
For the problems referred to above, we need a kind of helical-lobe compressor and air-conditioning system, the problem that requirement on machining accuracy is high, difficulty is large and manufacture cost is high that the structure that can solve the adjustment of existing compressor volume flow exists.
Summary of the invention
The object of the invention is to propose a kind of helical-lobe compressor, the problem that requirement on machining accuracy is high, difficulty is large and manufacture cost is high that prior art exists the mode that helical-lobe compressor volume flow adjusts can be solved.
Another object of the present invention is to propose a kind of air-conditioning system, it adopts helical-lobe compressor as previously discussed.
For reaching this object, the present invention by the following technical solutions:
A kind of helical-lobe compressor, comprising body and rotor, being provided with the compression chamber for holding described rotor in described body, the outer wall of described compression chamber offering and the exhaust structure for being communicated with compression chamber and suction end.
As a kind of preferred version of above-mentioned helical-lobe compressor, described exhaust structure is arranged on the side near compressor air suction end.
As a kind of preferred version of above-mentioned helical-lobe compressor, also comprising guiding valve, in described body, being provided with the piston chamber for holding described guiding valve.
As a kind of preferred version of above-mentioned helical-lobe compressor, described exhaust structure is the groove structure be communicated with described piston chamber, and is provided with the limit structure preventing described guiding valve from entering described groove structure in both joints.
As a kind of preferred version of above-mentioned helical-lobe compressor, described limit structure is that described piston chamber and described groove structure are connected the sidewall of side.
As a kind of preferred version of above-mentioned helical-lobe compressor, in the position that described piston chamber and described groove structure connect, the width of described groove structure is less than the width of described piston chamber.
As a kind of preferred version of above-mentioned helical-lobe compressor, one end of described groove structure is communicated with described piston chamber, and its other end runs through the end that described body is positioned at suction end.
As a kind of preferred version of above-mentioned helical-lobe compressor, described exhaust structure is the exhaust port running through described body.
A kind of air-conditioning system, it comprises helical-lobe compressor as previously discussed.
Beneficial effect of the present invention is: the present invention is communicated with the exhaust structure of compression chamber and suction end by offering on body, can realize part gas bypass to suction end, serves the object of adjustment volume flow.Meanwhile, body is arranged exhaust structure and there is the advantage that machining accuracy is low, difficulty is little, cost is low.
Accompanying drawing explanation
Fig. 1 is the compressor of a kind of volume flow provided in prior art;
Fig. 2 is the compressor of the another kind of volume flow provided in prior art;
Fig. 3 is the structural representation of the compressor block that the specific embodiment of the invention provides;
Fig. 4 is the partial enlarged drawing at " A " place in Fig. 3;
Fig. 5 is the structural representation of the compressor that the specific embodiment of the invention provides.
Wherein:
1: body; 2: rotor; 3: groove structure; 4: compression chamber; 5: guiding valve; 6: piston chamber; 7: step surface.
Embodiment
Technological scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figures 3 to 5, present embodiments provide for a kind of helical-lobe compressor, it comprises body 1, rotor 2, wherein, being provided with the compression chamber 4 for holding described rotor in body 1, the outer wall of compression chamber 4 offering and the exhaust structure for being communicated with compression chamber 4 and suction end.
By offering the exhaust structure being communicated with compression chamber 4 and suction end on body 1, part gas bypass can be realized to suction end, serving the object of adjustment volume flow.Meanwhile, body 1 arranges exhaust structure and there is the advantage that machining accuracy is low, difficulty is little, cost is low.
Concrete, exhaust structure is arranged on the side near compressor air suction end.
In order to the scope of enlarging volume flow adjustment, compressor also comprises guiding valve 5, is provided with the piston chamber 6 for holding guiding valve 5 in body 1.
The above-mentioned exhaust structure matching relationship concrete with piston chamber 6 is: exhaust structure is the groove structure 3 be communicated with piston chamber 6, and is provided with the limit structure preventing guiding valve 5 from entering groove structure 3 in both joints.The effect of this limit structure prevents the change because of the original position of guiding valve 5 from impacting the original structure of compressor.
Under normal circumstances, the degree of depth of groove structure 3 adjusts volume flow according to actual needs and limits, but considers structural strength and the processing cost of body 1, and groove structure 3 has certain depth just.The degree of depth described herein refer to groove structure 3 along compressor shaft to length.
Of course, in order to make volume flow have larger adjustment range, groove structure 3 can adopt following structure.One end of groove structure 3 is communicated with piston chamber 6, and its other end runs through the end that body 1 is positioned at suction end, and namely groove structure 3 adopts the structure running through compressor air suction bypass section end face afterbody.
In the present embodiment, the specific constructive form of limit structure is additionally provided: limit structure is that piston chamber 6 and groove structure 3 are connected the sidewall of side.
Further, in the position that piston chamber 6 and groove structure 3 connect, the width of groove structure 3 is less than the width of piston chamber 6.Thus, can at the docking location forming station terrace 7 of chute chamber 6 and groove structure 3, it is spacing that this step surface 7 can be formed guiding valve 5.
In the present embodiment, additionally provide the structural type of another exhaust structure, exhaust structure is the exhaust port running through compressor block 1.As long as the structure derived by a part of gas that is can be realized.
Working principle below by way of compressor is further explained above-mentioned helical-lobe compressor, and this kind of compressor has exhaust structure and guiding valve 5 simultaneously.
The object that exhaust structure is set be to allow Fig. 5 show length be L this section of spool by-pass to air-breathing, make this section of compression failure, in fact shorten the reduction length of rotor.Suppose that rotor length is S, under the prerequisite that body piston chamber 6 air-breathing bypass section L value is constant, when not opening exhaust structure, the actual volumetric flow of compressor is V (S); After offering groove structure 3, the volume flow of compressor is V (S-L), thus realizes the secured adjusted of volume flow.
From above-mentioned calculating, the volume flow of compressor is V (S-L), and as L=0 and when end face is not slotted, body piston chamber 6 bypass end face is actually and shows that with Fig. 4 the afterbody of guiding valve is fitted, there is not the problem of refrigrant leakage to suction side, this is the mentality of designing of Conventional press.And as S>L>0, the adjustment of different volume flow can be realized.
In the present embodiment, additionally provide a kind of air-conditioning system, it comprises helical-lobe compressor as previously discussed.
Take the rotor of different length to carry out the demand difference of satisfied different cold section compressor with Conventional press, the application only need offer the length of bypass groove, adjustment bypass segment length L value and adjustment guiding valve to realize the capacity regulating of compressor on body.That is, the adjustment target of helical-lobe compressor volume flow is transferred to body from rotor by the application, and its technological means mainly adjusts body piston chamber air-breathing bypass segment structure to realize different volume flow.Rotor machining required precision needed for contrast Conventional press capacity regulating is high, difficulty large, and the application only need increase the length of one common manufacturing procedure and adjustment guiding valve to body piston chamber, difficulty is low.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (9)
1. a helical-lobe compressor, comprise body (1) and rotor (2), the compression chamber (4) for holding described rotor (2) is provided with in described body (1), it is characterized in that, the outer wall of described compression chamber (4) offering and the exhaust structure for being communicated with compression chamber (4) and suction end.
2. helical-lobe compressor according to claim 1, is characterized in that, described exhaust structure is arranged on the side near compressor air suction end.
3. helical-lobe compressor according to claim 1, is characterized in that, also comprises guiding valve (5), is provided with the piston chamber (6) for holding described guiding valve (5) in described body (1).
4. helical-lobe compressor according to claim 3, it is characterized in that, described exhaust structure is the groove structure (3) be communicated with described piston chamber (6), and is provided with the limit structure preventing described guiding valve (5) from entering described groove structure (3) in both joints.
5. helical-lobe compressor according to claim 4, is characterized in that, described limit structure is that described piston chamber (6) and described groove structure (3) are connected the sidewall of side.
6. helical-lobe compressor according to claim 5, it is characterized in that, in the position that described piston chamber (6) and described groove structure (3) connect, the width of described groove structure (3) is less than the width of described piston chamber (6).
7. helical-lobe compressor according to claim 4, is characterized in that, one end of described groove structure (3) is communicated with described piston chamber (6), and its other end runs through the end that described body (1) is positioned at suction end.
8. helical-lobe compressor according to claim 1, is characterized in that, described exhaust structure is for running through the exhaust port of described body (1).
9. an air-conditioning system, is characterized in that, comprises the helical-lobe compressor as described in claim 1 to 8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861068.3A CN105386980B (en) | 2015-11-30 | 2015-11-30 | Screw compressor and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861068.3A CN105386980B (en) | 2015-11-30 | 2015-11-30 | Screw compressor and air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105386980A true CN105386980A (en) | 2016-03-09 |
| CN105386980B CN105386980B (en) | 2018-04-06 |
Family
ID=55419617
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510861068.3A Active CN105386980B (en) | 2015-11-30 | 2015-11-30 | Screw compressor and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105386980B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877846A (en) * | 1972-08-28 | 1975-04-15 | Stal Refrigeration Ab | Variable capacity screw compressor |
| JPH10317980A (en) * | 1997-05-16 | 1998-12-02 | Ishikawajima Harima Heavy Ind Co Ltd | Automobile screw type supercharger |
| EP1001173A1 (en) * | 1998-06-01 | 2000-05-17 | Mayekawa Mfg. Ltd. | Screw compressor with adjustable full-load capacity |
| CN201486862U (en) * | 2009-08-10 | 2010-05-26 | 中国船舶重工集团公司第七一一研究所 | Internal pressure ratio adjusting device of screw type compressor |
| JP2010285973A (en) * | 2009-06-15 | 2010-12-24 | Daikin Ind Ltd | Screw compressor |
| CN102414448A (en) * | 2009-03-26 | 2012-04-11 | 江森自控科技公司 | Compressor |
| CN103097734A (en) * | 2010-09-14 | 2013-05-08 | 江森自控科技公司 | Volume ratio control system and method |
| CN205277834U (en) * | 2015-11-30 | 2016-06-01 | 珠海格力电器股份有限公司 | Screw compressor and air conditioning system |
-
2015
- 2015-11-30 CN CN201510861068.3A patent/CN105386980B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877846A (en) * | 1972-08-28 | 1975-04-15 | Stal Refrigeration Ab | Variable capacity screw compressor |
| JPH10317980A (en) * | 1997-05-16 | 1998-12-02 | Ishikawajima Harima Heavy Ind Co Ltd | Automobile screw type supercharger |
| EP1001173A1 (en) * | 1998-06-01 | 2000-05-17 | Mayekawa Mfg. Ltd. | Screw compressor with adjustable full-load capacity |
| CN102414448A (en) * | 2009-03-26 | 2012-04-11 | 江森自控科技公司 | Compressor |
| JP2010285973A (en) * | 2009-06-15 | 2010-12-24 | Daikin Ind Ltd | Screw compressor |
| CN102459906A (en) * | 2009-06-15 | 2012-05-16 | 大金工业株式会社 | Screw compressor |
| CN201486862U (en) * | 2009-08-10 | 2010-05-26 | 中国船舶重工集团公司第七一一研究所 | Internal pressure ratio adjusting device of screw type compressor |
| CN103097734A (en) * | 2010-09-14 | 2013-05-08 | 江森自控科技公司 | Volume ratio control system and method |
| CN205277834U (en) * | 2015-11-30 | 2016-06-01 | 珠海格力电器股份有限公司 | Screw compressor and air conditioning system |
Non-Patent Citations (1)
| Title |
|---|
| 郁永章等: "《压缩机工程手册》", 31 January 2012, 中国石化出版社 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105386980B (en) | 2018-04-06 |
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