CN207634324U - Compressor air suction end cover and screw compressor - Google Patents
Compressor air suction end cover and screw compressor Download PDFInfo
- Publication number
- CN207634324U CN207634324U CN201721801655.4U CN201721801655U CN207634324U CN 207634324 U CN207634324 U CN 207634324U CN 201721801655 U CN201721801655 U CN 201721801655U CN 207634324 U CN207634324 U CN 207634324U
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- Prior art keywords
- end cap
- compressor
- guide vane
- air suction
- suction end
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- 239000012530 fluid Substances 0.000 claims abstract description 34
- 239000003507 refrigerant Substances 0.000 claims abstract description 34
- 230000003434 inspiratory effect Effects 0.000 claims abstract description 6
- 238000009826 distribution Methods 0.000 claims abstract description 3
- 238000005452 bending Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000029058 respiratory gaseous exchange Effects 0.000 abstract 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241001046947 Ectropis obliqua Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a compressor end cover and helical-lobe compressor of breathing in, compressor end cover of breathing in includes: the end cover comprises an end cover body (1) with an air suction port (3), wherein the air suction port (3) is communicated with a compressor cavity of a motor (5) for accommodating a compressor, and a guide vane (2) is arranged on the inner wall of the end cover body (1) and can guide refrigerant fluid sucked from the air suction port (3) so as to reduce the temperature difference around the motor (5). The utility model discloses a set up guide vane on the inner wall of end cover body and come to guide the refrigerant fluid of the inspiratory lower temperature of gas absorption mouth, utilize guide vane to guide refrigerant fluid to the suitable position so that reduce the difference in temperature around the motor to it is more even to make motor temperature distribution, avoids shortening the scheduling problem because of the motor life that local high temperature leads to.
Description
Technical field
The utility model is related to compressor field more particularly to a kind of compressor air suction end caps and helical-lobe compressor.
Background technology
Helical-lobe compressor is also referred to as screw machine, is the important component of business air conditioner Screw chiller.With converter technique
Development, frequency conversion screw machine gradually occupies a tiny space on the market.The variable-frequency motor that converter technique uses can change screw rod
The rotating speed of machine rotor, and then control the capacity of compressor.Frequency conversion screw machine can be adapted for a variety of application and environments, and can be micro-
Environment temperature is adjusted, therefore, frequency conversion screw machine has the characteristics that energy saving, applied widely.
For the air-breathing end cover structure of existing frequency conversion screw machine, the mixed gas of refrigerant and refrigeration oil enters from air entry
Afterwards, it will usually be flowed close to suction end tops inner wall, the flow field of this mixed gas causes motor or more uneven heating even, makes
It is higher at local temperature, and local temperature is excessively high, can reduce the service life of motor, and wind is brought to the stable operation of compressor
Danger.
Utility model content
The purpose of this utility model is a kind of compressor air suction end cap of proposition and helical-lobe compressor, is made on the inside of air-breathing end cap
The motor temperature of compressor is more evenly distributed.
To achieve the above object, the utility model provides a kind of compressor air suction end cap, including：End with air entry
Lid ontology, the air entry are connected to the compressor chamber for the motor for accommodating compressor, are equipped on the inner wall of the end cap ontology
Guide vane can guide the refrigerant fluid sucked from the air entry, to reduce the temperature difference around the motor.
Further, be configured as will be on from the air entry blow-through to the inner wall of the end cap ontology for the guide vane
Blow-through regional guidance to the end cap ontology in far from the blow-through region other regions.
Further, the guide vane is distributed in the side far from the air entry on the inner wall of the end cap ontology.
Further, the quantity of the guide vane is multiple, and the gap formation guiding of the adjacent guide vane is cold
The flow-guiding channel of matchmaker's fluid.
Further, the water conservancy diversion direction corresponding to the flow-guiding channel and the inspiratory direction of the air entry are blunt in presetting
Angle.
Further, it is 30 °~60 ° to preset obtuse angle.
Further, the interval angles of the adjacent guide vane are 15 °~60 °.
Further, the quantity of the guide vane is multiple, and along the circumferentially distributed of the inner wall of the end cap ontology.
Further, the guide vane account for overall 1/12 in the circumferentially distributed range of the inner wall of the end cap ontology~
1/2。
Further, the guide vane is distributed in the axis of end cap ontology described in the inner wall upper edge of the end cap ontology
At least one circumferential plane.
Further, the guide vane is uniformly distributed in the circumferentially distributed range.
Further, the length of the guide vane is 5~50mm.
Further, the length of the guide vane is 35mm.
Further, the guide vane is integrally cast with the end cap ontology.
Further, the end cap ontology includes the bending section being connected to the air entry and is connect with the bending section
Straight-through section, the guide vane are set to the position close to the bending section in the straight-through section.
To achieve the above object, the utility model provides a kind of helical-lobe compressor, including motor and compressor above-mentioned
Air-breathing end cap.
Further, further include breather filter, the breather filter is mounted on the air entry.
Further, under normal mounting state, the air entry is located at the downside of the end cap ontology, the water conservancy diversion leaf
Piece is at least distributed in the top inner wall of the end cap ontology.
Based on the above-mentioned technical proposal, the utility model on the inner wall of end cap ontology by being arranged guide vane come to air-breathing
The refrigerant fluid of lower temperature of mouthful sucking guides, using guide vane by refrigerant fluid be directed to suitable position so as to
The temperature difference reduced around the motor accommodated in end cap ontology avoids to make motor temperature be more evenly distributed because of local temperature mistake
Caused by height the problems such as motor reduced service life.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the cross section structure schematic diagram of an embodiment of the utility model compressor air suction end cap.
Fig. 2 is structural schematic diagrams of the Fig. 1 in right side perspective.
Fig. 3 is the mounting structure schematic diagram of the utility model compressor air suction Endcap embodiments.
Specific implementation mode
Below by drawings and examples, the technical solution of the utility model is described in further detail.
Fig. 1 shows that the cross section structure of an embodiment of the utility model compressor air suction end cap, Fig. 2 then show Fig. 1
In the structure of right side perspective.In the present embodiment, compressor air suction end cap includes：End cap ontology 1 with air entry 3, air-breathing
Mouth 3 is connected to the compressor chamber for the motor 5 (referring to mounting structure schematic diagram shown in Fig. 3) for accommodating compressor.For compressor
For, the refrigerant fluid that air entry is sucked is usually gaseous coolant medium, and in different operating modes or different compressor shapes
Under formula, the lubricant medium of small droplet form and a small amount of liquid refrigerants medium may also be mingled in gaseous coolant medium.With
It is lower for the convenience of description, regardless of whether be mingled with other media in refrigerant fluid, be all referred to as refrigerant fluid.
Under the action of motor 5 of compressor, the refrigerant fluid in 3 outside of air entry will be inhaled into end cap through air entry 3
In ontology 1, the compressor chamber residing for recirculation to motor 5.In the prior art, flowing of the refrigerant fluid in end cap ontology 1
It is mainly flowed along the interior sidewall surface of end cap ontology 1, the flow field of refrigerant fluid may result in the different parts of motor 5
Uneven heating is even.In order to overcome this problem, the present embodiment is provided with guide vane 2 on the inner wall of end cap ontology 1, using leading
Stream blade 2 guides the refrigerant fluid sucked from the air entry 3, to reduce the temperature difference around the motor 5, to make
The Temperature Distribution at each position of motor evenly, avoids caused by local temperature is excessively high motor reduced service life, reliable
Property it is poor the problems such as, improve compressor itself stability.
According to flow feature of the refrigerant fluid in end cap ontology 1 and compressor chamber, preferably it is configured as guide vane 2
Far from the blow-through regional guidance to the end cap ontology 1 on from 3 blow-through of the air entry to the inner wall of the end cap ontology 1
Other regions in the blow-through region.Usually refrigerant of the adjacent domain in blow-through region and blow-through region in lower temperature
Temperature under the action of fluid is lower compared to the temperature far from blow-through region, and utilizes guide vane 2 by the cold of blow-through region
Matchmaker's fluid is directed to other regions far from blow-through region, then can effectively balanced different zones temperature difference so that motor 5
Each spot temperature it is more uniform.
Getter action according to air entry 3 to refrigerant fluid, refrigerant fluid can flow to end cap after entering air entry 3
Side far from the air entry 3 on the inner wall of ontology 1, and guide vane 2 is arranged in the side then can be successfully by refrigerant stream
Body be directed to motor 5 other be not easy by the directly cooling region of refrigerant fluid.
With reference to mounting structure shown in Fig. 3, under the normal mounting state of compressor and air-breathing end cap, air entry 3 is located at
Guide vane 2 can be at least distributed the top inner wall being arranged in the end cap ontology 1 by the downside of the end cap ontology 1 accordingly
On.Under this configuration, out of, air entry 3 enters refrigerant fluid meeting blow-through to the top of the end cap ontology 1 of 3 face of air entry
On wall, and when being not provided with guide vane 2, reach top inner wall refrigerant fluid will it is most along top inner wall to motor
5 side flow, and only a small amount of refrigerant fluid can flow to the position of 5 surrounding of motor more on the lower.And in Fig. 1 and Fig. 3,
The top inner wall in end cap ontology 1 is arranged in guide vane 2, and guide vane 2 is made to be directed to the refrigerant fluid in the region far
Other regions from the region, for example, motor horizontal centre plane following region etc..In another embodiment, according to compression
The difference of machine, air entry 3 can also be arranged in other directions of end cap ontology, for example, be arranged in the left/right side of end cap ontology or
Person is arranged at the top of end cap ontology, correspondingly, the setting of guide vane 2 still can be arranged far from suction in the manner previously described
The inner wall surface of gas port 3.
The guidance mode of guide vane 2 can realize guiding by the shape of guide vane 2 itself, such as in guide vane 2
On process flow-guiding channel.And in order to simplify the shape of guide vane 2, reduce difficulty of processing, then it in one embodiment can be with
Using multiple guide vanes 2, and utilize the flow-guiding channel of the gap of adjacent guide vane 2 formation guiding refrigerant fluid.And it is
Enable flow-guiding channel that the refrigerant fluid in blow-through region is directed to other regions far from the region, preferably by flow-guiding channel
The inspiratory direction of corresponding water conservancy diversion direction and the air entry 3 is in default obtuse angle.With reference to figure 1, it is inhaled into from air entry 3 cold
In straight up, the guiding by the inner wall surface of end cap ontology 1 is converted into the inspiratory direction (i.e. black block arrow) of matchmaker's fluid
Horizontal flow direction (i.e. the horizontal thin arrow of black to the right) to the right, then be formed by water conservancy diversion along the gap of guide vane 2 and lead to
Road (the thin arrow of black of i.e. oblique bottom right) patch inner wall surface flow to oblique lower right.And the water conservancy diversion side of the flow-guiding channel
To being in default obtuse angle with the inspiratory direction of air entry 3, preferably the default obtuse angle is 30 °~60 °, can in the preferred scope
Enough effectively guiding refrigerant fluids flow to the relatively high motor middle and lower part position of temperature, also avoid guide vane 2 to refrigerant as possible
The unfavorable interference of the proper flow of fluid.
When multiple guide vanes 2 are arranged, according to the traffic requirement of flow-guiding channel and the different sizes etc. of guide vane 2
Factor can make the interval angles of the adjacent guide vane 2 be set as 15 °~60 °.Here interval angles instruct stream leaf
Piece 2 arrives the angle between the line in the axle center of compressor chamber.In addition, caused by order to control guide vane 2 during water conservancy diversion
The pressure loss, and take into account water conservancy diversion effect, preferably set the length of guide vane 2 to 5~50mm, and further preferably
35mm。
With reference to figure 2, multiple guide vanes 2 can be along the circumferentially distributed of the inner wall of end cap ontology 1.Since refrigerant fluid is main
It is flowed at the top of inner wall, therefore guide vane 2 can account for the 1/ of 360 ° of totality in the circumferentially distributed range of the inner wall of end cap ontology 1
12~1/2, i.e., 30 °~180 °.In the circumferentially distributed range, multiple guide vanes 2 can be uniformly distributed, with simplify design and
Manufacture.In another embodiment, can also according to refrigerant fluid in the circumferential different location flow use heterogeneous point
Mode for cloth.
Guide vane 2 can be as shown in Figure 1 the axis for being only distributed in compressor chamber described in the inner wall upper edge of end cap ontology 1
A circumferential plane on, two or more circumferential planes can also be distributed in, this had both included the water conservancy diversion of more week arrangements
Blade 2 can also include at least spirally arranged guide vane in part 2.
For setting of the guide vane on 1 inner wall of end cap ontology, it is preferred to use forging type, i.e., by guide vane 2 with
The end cap ontology 1 is integrally cast.In other embodiments, other set-up modes such as welding, bonding can also be used.Ginseng
Fig. 1 is examined, end cap ontology 1 may include the bending section being connected to the air entry 3 and connect straight-through section with the bending section.This is straight
Logical section can accommodate a part for the motor 5 of compressor.In view of relatively large in bending section cast guide vane difficulty, and set
Guide functions can be reduced again by setting position of the straight-through section far from bending section, therefore is preferably set to guide vane 2 described straight-through
In section water conservancy diversion effect is improved to simplify casting difficulty close to the position of the bending section.
Each embodiment of compressor air suction end cap above-mentioned is applicable to various types of compact machine, especially helical-lobe compressor.Phase
It answers, the utility model additionally provides a kind of helical-lobe compressor, includes the reality of motor 5 and aforementioned any compressor air suction end cap
Apply example.
Can also include breather filter 4, the breather filter 4 in one embodiment of helical-lobe compressor with reference to figure 3
Mounted on the air entry 3, the refrigerant fluid sucked from air entry 3 can be filtered.In view of breather filter 4 has
The circumferentially distributed range of longer tubular structure, guide vane 2 can be configured according to the outlet port of breather filter.
Finally it should be noted that:Above example is only to illustrate the technical solution of the utility model rather than limits it
System；Although the utility model is described in detail with reference to preferred embodiment, those of ordinary skill in the art should
Understand：It can still modify to specific embodiment of the present utility model or some technical characteristics are equally replaced
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (18)
1. a kind of compressor air suction end cap, which is characterized in that including：End cap ontology (1) with air entry (3), the air-breathing
Mouth (3) is connected to the compressor chamber for the motor (5) for accommodating compressor, and water conservancy diversion leaf is equipped on the inner wall of the end cap ontology (1)
Piece (2) can guide the refrigerant fluid sucked from the air entry (3), to reduce the temperature around the motor (5)
Difference.
2. compressor air suction end cap according to claim 1, which is characterized in that the guide vane (2) be configured as by
In blow-through regional guidance to the end cap ontology (1) on from the air entry (3) blow-through to the inner wall of the end cap ontology (1)
Other regions far from the blow-through region.
3. compressor air suction end cap according to claim 1, which is characterized in that the guide vane (2) is distributed in described
Side far from the air entry (3) on the inner wall of end cap ontology (1).
4. compressor air suction end cap according to claim 1, which is characterized in that the quantity of the guide vane (2) is more
It is a, and the gap of the adjacent guide vane (2) forms the flow-guiding channel of guiding refrigerant fluid.
5. compressor air suction end cap according to claim 4, which is characterized in that the water conservancy diversion side corresponding to the flow-guiding channel
To being in default obtuse angle with the inspiratory direction of the air entry (3).
6. compressor air suction end cap according to claim 5, which is characterized in that default obtuse angle is 30 °~60 °.
7. compressor air suction end cap according to claim 4, which is characterized in that between the adjacent guide vane (2)
Every angle be 15 °~60 °.
8. compressor air suction end cap according to claim 1, which is characterized in that the quantity of the guide vane (2) is more
It is a, and along the circumferentially distributed of the inner wall of the end cap ontology (1).
9. compressor air suction end cap according to claim 8, which is characterized in that the guide vane (2) is in the end cap
The circumferentially distributed range of the inner wall of ontology (1) accounts for overall 1/12~1/2.
10. compressor air suction end cap according to claim 8, which is characterized in that the guide vane (2) is distributed in described
At least one circumferential plane of the axis of compressor chamber described in the inner wall upper edge of end cap ontology (1).
11. compressor air suction end cap according to claim 9, which is characterized in that the guide vane (2) is in the circumferential direction
It is uniformly distributed in distribution.
12. compressor air suction end cap according to claim 1, which is characterized in that the length of the guide vane (2) is 5
~50mm.
13. compressor air suction end cap according to claim 1, which is characterized in that the length of the guide vane (2) is
35mm。
14. compressor air suction end cap according to claim 1, which is characterized in that the guide vane (2) and the end cap
Ontology (1) is integrally cast.
15. compressor air suction end cap according to claim 14, which is characterized in that the end cap ontology (1) includes and institute
The straight-through section stated the bending section of air entry (3) connection and connect with the bending section, the guide vane (2) are set to described straight
Close to the position of the bending section in logical section.
16. a kind of helical-lobe compressor, which is characterized in that inhaled including any compressor of motor (5) and claim 1~15
Gas end cap.
17. helical-lobe compressor according to claim 16, which is characterized in that further include breather filter (4), the air inlet
Filter (4) is mounted on the air entry (3).
18. helical-lobe compressor according to claim 16, which is characterized in that under normal mounting state, the air entry
(3) it is located at the downside of the end cap ontology (1), the guide vane (2) is at least distributed in the top of the end cap ontology (1)
On wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801655.4U CN207634324U (en) | 2017-12-21 | 2017-12-21 | Compressor air suction end cover and screw compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721801655.4U CN207634324U (en) | 2017-12-21 | 2017-12-21 | Compressor air suction end cover and screw compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207634324U true CN207634324U (en) | 2018-07-20 |
Family
ID=62853309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721801655.4U Active CN207634324U (en) | 2017-12-21 | 2017-12-21 | Compressor air suction end cover and screw compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207634324U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906007A (en) * | 2017-12-21 | 2018-04-13 | 珠海格力电器股份有限公司 | Compressor air suction end cover and screw compressor |
-
2017
- 2017-12-21 CN CN201721801655.4U patent/CN207634324U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906007A (en) * | 2017-12-21 | 2018-04-13 | 珠海格力电器股份有限公司 | Compressor air suction end cover and screw compressor |
| CN107906007B (en) * | 2017-12-21 | 2024-04-16 | 珠海格力电器股份有限公司 | Compressor suction end cover and screw compressor |
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