CN207297349U - Screw compressor - Google Patents
Screw compressor Download PDFInfo
- Publication number
- CN207297349U CN207297349U CN201721211462.3U CN201721211462U CN207297349U CN 207297349 U CN207297349 U CN 207297349U CN 201721211462 U CN201721211462 U CN 201721211462U CN 207297349 U CN207297349 U CN 207297349U
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- CN
- China
- Prior art keywords
- relief hole
- pressure release
- face
- annular flange
- fixed scroll
- 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.)
- Withdrawn - After Issue
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- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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- Rotary Pumps (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a kind of screw compressor, the screw compressor includes fixed scroll and pressure release valve block, and the outer end face of the fixed scroll is equipped with relief hole, and the annular flange set around the relief hole is additionally provided with the outer end face of the fixed scroll.The pressure release valve block has head and afterbody, and the afterbody is fixed on the fixed scroll, and the head coordinates with the annular flange to open or close the relief hole.According to the screw compressor of the utility model embodiment, due to being provided around the annular flange of relief hole on the outer end face on fixed scroll, when pressure release valve block closes relief hole, the head of pressure release valve block is engaged with annular flange, reduce the contact area of pressure release valve block and relief hole, the impact noise of pressure release valve block and relief hole is reduced, while also reduces drag losses.
Description
Technical field
It the utility model is related to compressor apparatus field, more particularly to a kind of screw compressor.
Background technology
During the operating of screw compressor, to avoid producing transition compression in compression chamber, can pressure release be set on fixed scroll
Hole, when air pressure exceedes certain pressure in compression chamber, relief valve sector-meeting is opened to reduce the pressure in compression chamber.Transported in compressor
When turning, continually opened/closed, valve block and relief hole outer surface are directly hit for relief valve sector-meeting, can produce very big noise,
And there is drag losses.
Utility model content
The utility model is intended at least solve one of technical problem existing in the prior art.For this reason, the utility model carries
Go out a kind of screw compressor, the pressure release valve block of the screw compressor and the noise of relief hole are smaller, and drag losses is smaller.
According to the screw compressor of the utility model embodiment, including：Fixed scroll, on the outer end face of the fixed scroll
Equipped with relief hole, the annular flange set around the relief hole is additionally provided with the outer end face of the fixed scroll；Pressure release valve block,
The pressure release valve block has head and afterbody, and the afterbody is fixed on the fixed scroll, the head and the convex annular
Edge coordinates to open or close the relief hole.
According to the screw compressor of the utility model embodiment, due to being provided around pressure release on the outer end face on fixed scroll
The annular flange in hole, when pressure release valve block closes relief hole, the head of pressure release valve block is engaged with annular flange, reduces pressure release
The contact area of valve block and relief hole, reduces the impact noise of pressure release valve block and relief hole, while also reduces drag losses.
In certain embodiments, the end face of the annular flange is formed as cambered surface, described to let out when the relief hole closes
Contacted between pressure valve piece and the annular flange for line.
Specifically, cross sectional shape of the end face of the annular flange in the plane of the central axis of excessively described relief hole is
Two semicircular arcs.
In certain embodiments, the annular recessed of the relief hole setting is provided around on the outer end face of the fixed scroll
Groove, the annular flange are located on the bottom wall of the annular groove, between the internal perisporium of the annular groove and the annular flange
It is spaced apart.
Specifically, when the relief hole closes, the head of the pressure release valve block is in the outer end of the fixed scroll
Projection on face is located in the annular groove.
Specifically, spacing is equal between the internal perisporium of the annular groove and the annular flange.
Specifically, the end face peak of the annular flange is concordant with the outer end face of the fixed scroll.
In certain embodiments, the internal perisporium of the annular flange is concordant with the internal perisporium of the relief hole.
In certain embodiments, the relief hole is arranged in pairs on the outer end face of the fixed scroll, the annular flange
Encompass to two relief holes set.
The additional aspect and advantage of the utility model will be set forth in part in the description, partly by from following description
In become obvious, or recognized by the practice of the utility model.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination accompanying drawings below to embodiment
Become obvious and be readily appreciated that, wherein：
Fig. 1 is the overall structure diagram of the screw compressor of the utility model embodiment.
Fig. 2 is that Fig. 1 circles show enlarged drawing at C.
Fig. 3 is the overall structure figure of the fixed scroll of the utility model embodiment.
Fig. 4 is the assembly relation schematic diagram of the fixed scroll with pressure release valve block of the utility model embodiment.
Fig. 5 is the local structural graph of the relief hole of the utility model embodiment.
Fig. 6 is the A-A of Fig. 5 to part sectioned view.
Fig. 7 is the B-B direction part sectioned view of Fig. 5.
Reference numeral：
Screw compressor 1
Casing 10, installation cavity 110,
Bent axle 20, slave frame 30, rotor 40, rotor 50, mainframe 60, orbiter 70,
Fixed scroll 80, relief hole 810, annular flange 820, annular groove 830, pressure release valve block 840, head 841, afterbody
842、
Exhaust pipe 90.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and it is not intended that to the utility model
Limitation.
Concrete structure below with reference to Fig. 1-Fig. 7 descriptions according to the screw compressor 1 of the utility model embodiment.
As Figure 1-Figure 2, fixed scroll 80 and relief valve are included according to the screw compressor 1 of the utility model embodiment
Piece 840, the outer end face of fixed scroll 80 are equipped with relief hole 810, are additionally provided with the outer end face of fixed scroll 80 around relief hole
810 annular flanges 820 set.Pressure release valve block 840 has head 841 and afterbody 842, and afterbody 842 is fixed on fixed scroll 80
On, head 841 coordinates to open or close relief hole 810 with annular flange 820.
It is understood that when pressure release valve block 840 closes relief hole 810, the head 841 of pressure release valve block 840 is with surrounding
The annular flange 820 that relief hole 810 is set is engaged, and reduces the contact area of pressure release valve block 840 and relief hole 810, is reduced
The impact noise of pressure release valve block 840 and relief hole 810, while also reduce drag losses.
According to the screw compressor 1 of the utility model embodiment, due to being provided around on the outer end face on fixed scroll 80
The annular flange 820 of relief hole 810, when pressure release valve block 840 closes relief hole 810, the head 841 of pressure release valve block 840 and ring
Shape flange 820 is engaged, and reduces the contact area of pressure release valve block 840 and relief hole 810, reduces pressure release valve block 840 with letting out
The impact noise in hole 810 is pressed, while also reduces drag losses.
In certain embodiments, the end face of annular flange 820 is formed as cambered surface, when relief hole 810 closes, pressure release valve block
Contacted between 840 and annular flange 820 for line.Thus, it is possible to further reduce when pressure release valve block 840 closes relief hole 810 with
The contact area of relief hole 810, reduce further the impact noise of pressure release valve block 840 and relief hole 810.Certainly, in pressure release
When hole 810 closes, it can also be contacted between pressure release valve block 840 and annular flange 820 for face, or point contact.So equally may be used
To achieve the purpose that to reduce the impact noise of pressure release valve block 840 and relief hole 810.
Specifically, cross sectional shape of the end face of annular flange 820 in the plane of central axis for crossing relief hole 810 is two
Bar semicircular arc.Thus, it is possible to preferably realize when relief hole 810 closes, between pressure release valve block 840 and annular flange 820
Contacted for.Certainly, annular flange 820 can also be formed as other shapes, for example, pressure release is being crossed in the end face of annular flange 820
Cross sectional shape in the plane of the central axis in hole 810 is triangle etc..
In certain embodiments, as shown in figs 2-4, relief hole 810 is provided around on the outer end face of fixed scroll 80 to set
The annular groove 830 put, annular flange 820 are located on the bottom wall of annular groove 830, internal perisporium and the annular of annular groove 830
Flange 820, which is spaced apart, to be set.It is understood that assume that the internal perisporium of annular groove 830 is in contact with annular flange 820, that
When relief hole 810 closes, pressure release valve block 840 is possible to the end contact directly with annular groove 830, is so unfavorable for
Reduce the impact noise of pressure release valve block 840 and relief hole 810.Thus, between the internal perisporium of annular groove 830 and annular flange 820
The impact noise of pressure release valve block 840 and relief hole 810 can further be reduced by being spaced apart, and reduce drag losses.
Specifically, as shown in figure 4, when relief hole 810 closes, the head 841 of pressure release valve block 840 is in fixed scroll 80
Projection on outer end face is located in annular groove 830.It is understood that when relief hole 810 closes, pressure release valve block 840
Head 841 is located in annular groove 830, that is to say, that the cross-sectional area of annular groove 830 is more than the head of pressure release valve block 840
The cross-sectional area in portion 841.Thus, it is possible to avoid when relief hole 810 closes, head 841 and the quiet vortex of pressure release valve block 840
There is a phenomenon where hit to occur for the outer end face of disk 80.In conclusion the head 841 of pressure release valve block 840 is in the outer of fixed scroll 80
Projection on end face can further reduce the impact noise of pressure release valve block 840 and relief hole 810 in annular groove 830,
Reduce drag losses.
Specifically, as shown in Fig. 2, Fig. 7, spacing is equal between the internal perisporium and annular flange 820 of annular groove 830.Need
It is noted that the spacing between the internal perisporium of annular groove 830 and annular is equal, that is to say, that the shape of annular groove 830
Shape with annular flange 820 is similar fitgures, and the geometric center of the two coincides.Thus, it is possible to avoid in relief hole 810
During closure, the internal perisporium of pressure release valve block 840 and annular groove 830 further reduces pressure release valve block there is a phenomenon where hitting to occur
840 with the impact noise of relief hole 810, reduce drag losses.
Specifically, as shown in Fig. 2, Fig. 7, the end face peak of annular flange 820 is concordant with the outer end face of fixed scroll 80.
It is understood that when the end face peak of annular flange 820 is higher than the outer end face of fixed scroll 80, pressure release valve block 840 only supports
Relief hole 810 cannot be closed well in annular flange 820.The end face peak of annular flange 820 is less than fixed scroll
During 80 outer end face, bottom wall of the pressure release valve block 840 easily with annular groove 830 is hit.In conclusion annular flange 820
The end face peak sealing effect that can not only ensure pressure release valve block 840 concordant with the outer end face of fixed scroll 80, can be with
Avoid the bottom wall of pressure release valve block 840 and annular groove 830 from occurring to hit generation, further reduce pressure release valve block 840 and
The impact noise of relief hole 810, reduces drag losses.
In certain embodiments, the internal perisporium of annular flange 820 is concordant with the internal perisporium of relief hole 810.Thus, it is possible to keep away
Exempt from that pressure release phenomenon occurs when pressure release valve block 840 is only against annular flange 820, ensure that screw compressor 1 in normal work not
Pressure release phenomenon can occur, so as to ensure that the compression efficiency of screw compressor 1.
In certain embodiments, as shown in fig. 6, relief hole 810 is arranged in pairs on the outer end face of fixed scroll 80, convex annular
Edge 820 encompass to two relief holes 810 set.So can quickly it be let out when the transition of screw compressor 1 is compressed
Pressure, improves the functional reliability and security of screw compressor 1.
The screw compressor 1 of one specific embodiment of the utility model is described below with reference to Fig. 1-Fig. 7.
As shown in Figs. 1-2, the screw compressor 1 of the present embodiment includes casing 10, and installation cavity 110 is limited in casing 10,
Exhaust pipe 90 is welded with 10 periphery wall of casing.Bent axle 20 is equipped with installation cavity 110, is equipped with successively from upper by lower on bent axle 20
Slave frame 30, rotor 40, mainframe 60.The top of bent axle 20 is equipped with orbiter 70, and orbiter 70 is equipped with quiet whirlpool
Capstan 80, compression chamber is limited between orbiter 70 and fixed scroll 80.40 outer cover of rotor is equipped with stator 50, and stator 50 is fixed
It is connected on casing 10.
As shown in figure 4, the outer end face on fixed scroll 80 is equipped with four pairs of relief holes 810 and around each pair relief hole 810
The annular flange 820 of setting, the annular groove that each circular relief hole 810 is set is additionally provided with the outer end face of fixed scroll 80
830, annular flange 820 is equipped with the bottom wall of annular groove 830, and is spaced apart setting with the internal perisporium of annular groove 830, annular
The end face peak of flange 820 is concordant with the outer end face of fixed scroll 80.Pressure release valve block 840 is equipped with fixed scroll 80, is let out
Pressure valve piece 840 has head 841 and afterbody 842, and the afterbody 842 of pressure release valve block 840 is fixed on fixed scroll 80, head 841
Coordinate with annular flange 820 to open or close relief hole 810, the head 841 of pressure release valve block 840 is in the outer end of fixed scroll 80
Projection on face is located in annular groove 830.
The screw compressor 1 of the present embodiment, due to being provided around the ring of relief hole 810 on the outer end face on fixed scroll 80
Shape flange 820, when pressure release valve block 840 closes relief hole 810, head 841 and the annular flange 820 of pressure release valve block 840 match
Close, reduce the contact area of pressure release valve block 840 and relief hole 810, reduce the shock of pressure release valve block 840 and relief hole 810
Noise, while also reduce drag losses.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
Combined in an appropriate manner in any one or more embodiments or example.
While there has been shown and described that the embodiment of the utility model, it will be understood by those skilled in the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from the principle and objective of the utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent.
Claims (9)
- A kind of 1. screw compressor, it is characterised in that including：Fixed scroll, the outer end face of the fixed scroll are equipped with relief hole, ring are additionally provided with the outer end face of the fixed scroll The annular flange set around the relief hole；Pressure release valve block, the pressure release valve block have head and afterbody, and the afterbody is fixed on the fixed scroll, the head Coordinate with the annular flange to open or close the relief hole.
- 2. screw compressor according to claim 1, it is characterised in that the end face of the annular flange is formed as cambered surface, When the relief hole closes, contacted between the pressure release valve block and the annular flange for line.
- 3. screw compressor according to claim 2, it is characterised in that the end face of the annular flange is in excessively described pressure release Cross sectional shape in the plane of the central axis in hole is two semicircular arcs.
- 4. screw compressor according to claim 1, it is characterised in that be provided around on the outer end face of the fixed scroll The annular groove that the relief hole is set, the annular flange are located on the bottom wall of the annular groove, the annular groove Internal perisporium is spaced apart setting with the annular flange.
- 5. screw compressor according to claim 4, it is characterised in that when the relief hole closes, the relief valve Projection of the head of piece on the outer end face of the fixed scroll is located in the annular groove.
- 6. screw compressor according to claim 4, it is characterised in that the internal perisporium of the annular groove and the annular Spacing is equal between flange.
- 7. screw compressor according to claim 4, it is characterised in that the end face peak of the annular flange with it is described The outer end face of fixed scroll is concordant.
- 8. screw compressor according to claim 1, it is characterised in that the internal perisporium of the annular flange and the pressure release The internal perisporium in hole is concordant.
- 9. according to the screw compressor any one of claim 1-8, it is characterised in that the outer end face of the fixed scroll The upper relief hole is arranged in pairs, the annular flange encompass to two relief holes set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721211462.3U CN207297349U (en) | 2017-09-20 | 2017-09-20 | Screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721211462.3U CN207297349U (en) | 2017-09-20 | 2017-09-20 | Screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207297349U true CN207297349U (en) | 2018-05-01 |
Family
ID=62443063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721211462.3U Withdrawn - After Issue CN207297349U (en) | 2017-09-20 | 2017-09-20 | Screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207297349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489614A (en) * | 2017-09-20 | 2017-12-19 | 广东美的暖通设备有限公司 | Screw compressor |
-
2017
- 2017-09-20 CN CN201721211462.3U patent/CN207297349U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107489614A (en) * | 2017-09-20 | 2017-12-19 | 广东美的暖通设备有限公司 | Screw compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181107 Address after: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Patentee after: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. Address before: 528311 Penglai Road industrial town, Beijiao Town, Shunde District, Foshan, Guangdong Co-patentee before: MIDEA GROUP Co.,Ltd. Patentee before: GD MIDEA HEATING & VENTILATING EQUIPMENT Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190304 Address after: 528300 No. 21, Gangqian Road, Beijiao Town, Shunde District, Foshan City, Guangdong Province Patentee after: GUANGDONG MIDEA ENVIRONMENT TECHNOLOGY Co.,Ltd. Address before: 528300 Shun Feng Shan Industrial Development Zone, Shunde District, Foshan, Guangdong. Patentee before: GUANGDONG MEIZHI COMPRESSOR Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180501 Effective date of abandoning: 20230627 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180501 Effective date of abandoning: 20230627 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |