CN208900353U - A kind of pump assembly and compressor - Google Patents
A kind of pump assembly and compressor Download PDFInfo
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- CN208900353U CN208900353U CN201821530307.2U CN201821530307U CN208900353U CN 208900353 U CN208900353 U CN 208900353U CN 201821530307 U CN201821530307 U CN 201821530307U CN 208900353 U CN208900353 U CN 208900353U
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Abstract
The utility model provides a kind of pump assembly and compressor, is related to Compressor Technology field.It include: cylinder and flange, cylinder has sliding cavity and increasing enthalpy mouth, and flange has cavity, and flange is equipped with the exhaust passage for being connected to sliding cavity and cavity, with the air supply passage for being connected to increasing enthalpy mouth and cavity；Air supply passage is first port close to the port of cavity side, and exhaust passage is second port, the distance of the distance of the center line of first port to flange less than or equal to the center line of second port to flange close to the port of cavity side.Pump assembly provided by the utility model, enables to tonifying Qi refrigerant identical compared to the distance at the center of flange with the position of low-pressure stage discharge refrigerant or tonifying Qi refrigerant is located at the interior of low-pressure stage refrigerant and encloses.Avoid tonifying Qi refrigerant and low-pressure stage refrigerant be collected in the cavity of flange far from flange center's line position at, low-pressure stage refrigerant and tonifying Qi refrigerant are sufficiently mixed in the cavity of flange.
Description
Technical field
The utility model relates to compressor fields, in particular to a kind of pump assembly and compressor.
Background technique
Two-stage enthalpy increasing rotor-type compressor is the compression device being widely used in air conditioner heat pump system.Existing twin-stage
Increasing enthalpy rotor-type compressor, when work, the refrigerant flowed out from evaporator enters low-pressure stage gas by liquid separator of compressor component
Cylinder is expelled in lower flange cavity via low-pressure stage cylinder exhaust port after compression, this some refrigerant is low-pressure stage refrigerant.
Another part refrigerant, to intermediate pressure, flows directly into compressor increasing enthalpy component, enters back into increasing enthalpy air intake duct, pass through by throttling
Increasing enthalpy mouth on low-pressure stage cylinder flows into lower flange cavity via air supply passage, this some refrigerant is tonifying Qi refrigerant.It mends
Gas refrigerant mixes in lower flange cavity with low-pressure stage refrigerant, and mixed middle compression refrigerant passes through on low-pressure stage cylinder
Recirculation hole sucks and is compressed into high-pressure refrigerant by pump partition plate by hiigh pressure stage cylinder, be expelled in shell by upper flange
Then the upper space in portion is discharged to system from the exhaust pipe of case top, so far, Two-stage Compression of rotary compressor is simultaneously
The work for carrying out increasing enthalpy is completed.
But existing two-stage enthalpy increasing rotor-type compressor tonifying Qi refrigerant and low-pressure stage refrigerant are in lower flange cavity
When mixing, it may occur that mix non-uniform problem.When tonifying Qi refrigerant mixes uneven with low-pressure stage refrigerant, can make low
The exhaust of cylinder of arbitrarily downgrading cannot be fully cooled, and hiigh pressure stage cylinder air-breathing has some setbacks, and increases the work done during compression of hiigh pressure stage cylinder,
Reduce compressor performance.
Utility model content
The utility model provides a kind of pump assembly and compressor, it is intended to improve existing compressor tonifying Qi refrigerant with it is low
When refrigerant of arbitrarily downgrading mixes in the cavity of flange, it may occur that mix non-uniform problem.
The utility model is realized in this way:
A kind of pump assembly, comprising: cylinder and flange, the cylinder has sliding cavity, and the cylinder is equipped with increasing enthalpy
Mouthful, the flange is set to the cylinder bottom, and the flange has cavity, and the flange is equipped with for being connected to the sliding
The exhaust passage of chamber and the cavity, and the air supply passage for being connected to the increasing enthalpy mouth and the cavity；
The air supply passage is first port close to the port of the cavity side, and the exhaust passage is close to the cavity
The port of side is second port, and the distance of the center line of the first port to the flange is less than or equal to the second end
Mouth arrives the distance of the center line of the flange.
Further, in the utility model preferred embodiment, the air supply passage is close to increasing enthalpy mouth side
Port is third port, and the air supply passage is obliquely installed, and the third port to the flange center line distance it is big
In the distance of the center line of the first port to the flange.
Further, in the utility model preferred embodiment, the air supply passage includes connected first segment and
Two sections, the first port is located on the first segment, and the third port is located on the second segment, the first segment and institute
The centerline parallel setting of flange is stated, the second segment is obliquely installed.
Further, in the utility model preferred embodiment, the area of the first port and the second port
Area ratio be 0.05-0.5.
Further, in the utility model preferred embodiment, the first port is equipped with first check-valve.
Further, in the utility model preferred embodiment, the first check-valve includes valve block and rivet, described
Valve block is set on the inner wall of the cavity by the rivet, and the valve block lid closes in the first port.
Further, in the utility model preferred embodiment, the first check-valve further includes baffle, the valve block
Pass through the rivet with the baffle to be set on the inner wall of the cavity, and the baffle is located at the valve block far from described
The side of first port, the baffle are used to limit the open angle of the valve block.
Further, in the utility model preferred embodiment, the baffle includes the interconnecting piece being connected and limit
Portion, the interconnecting piece and the rivet interlacement, the limiting section is corresponding with the first port position, and the limiting section with
There is pre-determined distance between the first port.
Further, in the utility model preferred embodiment, the thickness of the valve block is straight with the first port
The ratio between diameter is 0.01-0.05.
A kind of compressor, the compressor include pump assembly described in any of the above embodiments.
The beneficial effects of the utility model are: the pump assembly that the utility model obtains by above-mentioned design, in sliding cavity
By compressed low-pressure stage refrigerant via exhaust passage, out of, second port is expelled to flange cavity.Tonifying Qi refrigerant warp
By increasing enthalpy mouth and air supply passage, out of, first port is expelled to flange cavity.In the utility model, first port arrives flange
Distance of the distance of center line less than or equal to the center line of second port to flange.So that tonifying Qi refrigerant and low-pressure stage refrigeration
The position of agent discharge is identical compared to the distance at the center of flange or tonifying Qi refrigerant is located at the interior of low-pressure stage refrigerant and encloses.It keeps away
Exempted from tonifying Qi refrigerant and low-pressure stage refrigerant be collected in the cavity of flange far from flange center's line position at so that low-pressure stage system
Cryogen and tonifying Qi refrigerant can be sufficiently mixed in the cavity of flange.
Detailed description of the invention
It, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore not
It should be considered as the restriction to range, for those of ordinary skill in the art, without creative efforts,
It can also be obtained according to these attached drawings other relevant attached drawings.
Fig. 1 is the utility model embodiment, a kind of structural schematic diagram of pump assembly；
Fig. 2 is the utility model embodiment, the structural schematic diagram of air supply passage in a kind of pump assembly；
Fig. 3 is the utility model embodiment, the structural schematic diagram of check-valves in a kind of pump assembly.
Icon: cylinder 1；Sliding cavity 11；Increasing enthalpy mouth 12；Flange 2；Cavity 21；Exhaust passage 22；Air supply passage 23；First
Section 231；Second segment 232；Check-valves 24；Valve block 241；Baffle 242；Rivet 243.
Specific embodiment
It is practical below in conjunction with this to keep the purposes, technical schemes and advantages of the utility model embodiment clearer
The technical solution in the utility model embodiment is clearly and completely described in attached drawing in novel embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.It is practical based on this
Embodiment in novel, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment is fallen within the protection scope of the utility model.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit the range of claimed invention, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
Every other embodiment obtained under the premise of dynamic, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise " be based on the orientation or positional relationship shown in the drawings, be only for
Convenient for description the utility model and simplify description, rather than the equipment of indication or suggestion meaning or element must have specifically
Orientation is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.It for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature the "upper" of second feature or it
"lower" may include that the first and second features directly contact, and also may include that the first and second features are not direct contacts but lead to
Cross the other characterisation contact between them.Moreover, fisrt feature includes above the second feature " above ", " above " and " above "
One feature is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.First is special
Sign is directly below and diagonally below the second feature including fisrt feature under the second feature " below ", " below " and " below ", or only
Indicate that first feature horizontal height is less than second feature.
Embodiment 1 please refers to shown in Fig. 1-Fig. 3, and the present embodiment provides a kind of pump assemblies, comprising: cylinder 1 and flange 2,
Cylinder 1 has sliding cavity 11, and cylinder 1 is equipped with increasing enthalpy mouth 12, and flange 2 is set to 1 bottom of cylinder, and flange 2 has cavity 21,
Flange 2 is equipped with the exhaust passage 22 for being connected to sliding cavity 11 and cavity 21, and for being connected to increasing enthalpy mouth 12 and cavity 21
Air supply passage 23；
Air supply passage 23 is first port, end of the exhaust passage 22 close to 21 side of cavity close to the port of 21 side of cavity
It mouthful is second port, the center line of the distance of the center line of first port to flange 2 less than or equal to second port to flange 2
Distance.
Due to compressor and the structural requirement of cylinder 1, exhaust pipe needs to be set to the lower section of sliding cavity 11, and is located at and slides
The edge of dynamic chamber 11, increasing enthalpy mouth 12 need to be provided on the outer wall of cylinder 1.Meanwhile in the center line and flange 2 of cylinder 1
Heart line is overlapped.Since increasing enthalpy mouth 12 is to be provided on the outer wall of cylinder 1, and sliding cavity 11 is enclosed in by the outer wall of cylinder 1
Internal.So if exhaust passage 22 and air supply passage 23 are all that vertically disposed (i.e. exhaust passage 22 and air supply passage 23 is equal
With the centerline parallel of flange 2), the distance of the center line of such air supply passage 23 to flange 2 can be greater than exhaust passage 22 and arrive method
The distance of the center line of orchid 2, tonifying Qi discharge refrigerant to the periphery of low-pressure stage refrigerant can make tonifying Qi refrigerant and low-pressure stage system
Cryogen is collected at the cavity 21 of flange 2 far from centerline, it is easy to fill low-pressure stage refrigerant and tonifying Qi refrigerant can not
Divide mixing.
Pump assembly provided in this embodiment, by compressed low-pressure stage refrigerant via exhaust passage in sliding cavity 11
22, out of, second port is expelled to flange 2 cavity 21.Tonifying Qi refrigerant is via increasing enthalpy mouth 12 and air supply passage 23, from first
Port is expelled in the cavity 21 of flange 2.In the present embodiment, the distance of the center line of first port to flange 2 is less than or equal to
Second port to flange 2 center line distance.So that the position of tonifying Qi refrigerant and low-pressure stage discharge refrigerant is compared to method
The distance at the center of orchid 2 is identical or tonifying Qi refrigerant is located at the interior of low-pressure stage refrigerant and encloses.Avoid tonifying Qi refrigerant and low pressure
Grade refrigerant be collected in the cavity 21 of flange 2 far from 2 position of center line of flange at so that low-pressure stage refrigerant and tonifying Qi refrigerant
It can be sufficiently mixed in the cavity 21 of flange 2.
Further, in the present embodiment, air supply passage 23 is third port, tonifying Qi close to the port of 12 side of increasing enthalpy mouth
Channel 23 is obliquely installed, and third port to flange 2 center line distance be greater than first port to flange 2 center line away from
From.It is higher to the emission request of low-pressure stage refrigerant when being worked due to cylinder 1, so, exhaust passage 22 can only be vertically arranged.This
In embodiment, to keep tonifying Qi refrigerant identical compared to the distance at the center of flange 2 with the position of low-pressure stage discharge refrigerant, or
Tonifying Qi refrigerant is located at the interior of low-pressure stage refrigerant and encloses.Air supply passage 23 is obliquely installed by the present embodiment, i.e., by air supply passage 23
First port tilted to the centerline direction of flange 2, make first port to the distance of the center line of flange 2 less than or equal to the
Two-port netwerk to flange 2 center line distance.The position of realization tonifying Qi refrigerant and low-pressure stage discharge refrigerant is compared to flange 2
Center distance is identical or tonifying Qi refrigerant be located at low-pressure stage refrigerant in enclose.Low-pressure stage refrigerant and tonifying Qi is allowed to freeze
Agent can be sufficiently mixed in the cavity 21 of flange 2.
Shown in referring to figure 2., further, in the present embodiment, air supply passage 23 includes connected first segment 231 and the
Two section 232, first port is located on first segment 231, and third port is located on second segment 232, in first segment 231 and flange 2
Heart line is arranged in parallel, and second segment 232 is obliquely installed.Tonifying Qi refrigerant enters second segment 232 via increasing enthalpy mouth 12, from third port
Interior, the second segment 232 being obliquely installed drains tonifying Qi refrigerant to the direction close to 2 center line of flange, and flows into first segment 231
It is interior, finally flowed out in cavity 21 from first port.The stream that the first segment 231 being vertically arranged enables tonifying Qi refrigerant vertical
Enter into the cavity 21 of flange 2, enable tonifying Qi refrigerant is more stable to mix with low-pressure stage refrigerant, makes the two can be more
It is adequately mixed, improves mixed effect.
In specific application, if the area of the first port of air supply passage 23 is too small, the flow resistance of tonifying Qi refrigerant increases
Add, compressor performance decline if the area of the first port of air supply passage 23 is excessive, will increase the leakage of tonifying Qi refrigerant
Amount, and increasing enthalpy jeting effect is poor.The present embodiment guarantees that the performance of compressor will not to reduce the leakage rate of tonifying Qi refrigerant
Decline, in the present embodiment, the area of first port and the area ratio of second port are 0.05-0.5.Preferably, first end
The area of mouth and the area ratio of second port are 0.1-0.4.It is furthermore preferred that the area of first port and the area of second port
The ratio between be 0.25.
For compressor in actual motion, the cavity 21 of flange 2 is the chamber that low-pressure stage refrigerant is mixed with tonifying Qi refrigerant.
But compressor operation is the suction and discharge of non-uniform speed, so the pressure in the cavity 21 of flange 2 has fluctuation, in flange 2
Cavity 21 in pressure when reaching peak value, the pressure in cavity 21 can be higher than pressure when tonifying Qi refrigerant flows into, and lead to tonifying Qi
Refrigerant is flow backwards, and reduces compressor performance.
To solve the problems, such as that tonifying Qi refrigerant is flow backwards, in the present embodiment, first port is equipped with first check-valve 24.The
One check-valves 24 is flow backwards for placing tonifying Qi refrigerant into air supply passage 23 and increasing enthalpy mouth 12.
Shown in referring to figure 3., specifically, in the present embodiment, first check-valve 24 includes valve block 241 and rivet 243, valve
Piece 241 is set on the inner wall of cavity 21 by rivet 243, and the lid of valve block 241 closes in first port.When tonifying Qi refrigerant stream
When entering in cavity 21, tonifying Qi refrigerant can push valve block 241, to flow into cavity 21.When pressure is greater than benefit in cavity 21
When gas refrigerant feed pressure, valve block 241 can be under the action of pressure difference, and lid closes in first port, so that realizing prevents tonifying Qi
Refrigerant is flow backwards.
Meanwhile in the present embodiment, rivet 243 is set to the side of center line of the first port far from flange 2, makes valve block
241 opening center line of the mouth towards flange 2.In this way, certain lead can be played to tonifying Qi refrigerant when valve block 241 is opened
To effect, enable tonifying Qi refrigerant closer to the position of center line of flange 2, makes tonifying Qi refrigerant and low-pressure stage refrigerant
Mixed effect is more preferably.
Further, in the present embodiment, first check-valve 24 further includes baffle 242, and valve block 241 and baffle 242 are logical
It crosses rivet 243 to be set on the inner wall of cavity 21, and baffle 242 is located at side of the valve block 241 far from first port, baffle 242
For limiting the open angle of valve block 241.Baffle 242 includes the interconnecting piece and limiting section being connected, and interconnecting piece and rivet 243 connect
It connects, limiting section is corresponding with first port position, and has pre-determined distance between limiting section and first port.By adjusting it is default away from
From size, limit valve block 241 maximum open angle.When the feed pressure of tonifying Qi refrigerant is excessive, valve block 241 will lead to
Open angle it is excessive, if things go on like this, will lead to the problems such as valve block 241 is because of metal fatigue, decline the performance of valve block 241, shadow
Ring working effect.The open angle that valve block 241 is limited by setting baffle 242, prevents the open angle of valve block 241 excessive,
Damage valve block 241.
When it is implemented, if 241 thickness of valve block is too small, 241 easy fracture of valve block, poor reliability.If 241 thickness mistake of valve block
Greatly, then increasing enthalpy when the resistance of tonifying Qi refrigerant is improved, increase power consumption.Guaranteeing that it is enough reliable that valve block 241 has to realize
Property while, as far as possible reduction power consumption.In the present embodiment, the thickness of valve block 241 and the diameter ratio of first port are
0.01-0.05.Preferably, the thickness of valve block 241 and the diameter ratio of first port are 0.02-0.04. it is furthermore preferred that valve block
241 thickness and the diameter ratio of first port are 0.03.
Check-valves 24, and 24 structure of check-valves in structure and first port also are provided in the present embodiment, in second port
It is identical.
The present embodiment also provides a kind of compressor, and compressor includes the pump assembly of any of the above-described.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the utility model, for
For those skilled in the art, various modifications and changes may be made to the present invention.All spirit and original in the utility model
Within then, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of pump assembly characterized by comprising cylinder (1) and flange (2), the cylinder (1) have sliding cavity
(11), and the cylinder (1) is equipped with increasing enthalpy mouth (12), and the flange (2) is set to the cylinder (1) bottom, the flange
(2) there are cavity (21), it is logical that the flange (2) is equipped with the exhaust for being connected to the sliding cavity (11) and the cavity (21)
Road (22), and the air supply passage (23) for being connected to the increasing enthalpy mouth (12) and the cavity (21)；
The air supply passage (23) is first port close to the port of the cavity (21) side, and the exhaust passage (22) is close
The port of cavity (21) side is second port, and the distance of the center line of the first port to the flange (2) is less than
Or the distance of the center line equal to the second port to the flange (2).
2. pump assembly according to claim 1, which is characterized in that the air supply passage (23) is close to the increasing enthalpy mouth
(12) port of side is third port, and the air supply passage (23) is obliquely installed, and the third port is to the flange (2)
Center line distance be greater than the first port to the flange (2) center line distance.
3. pump assembly according to claim 2, which is characterized in that the air supply passage (23) includes connected first segment
(231) it is located on the first segment (231) with second segment (232), the first port, the third port is located at described second
In section (232), the centerline parallel of the first segment (231) and the flange (2) is arranged, and second segment (232) inclination is set
It sets.
4. pump assembly according to claim 1, which is characterized in that the area of the first port and the second port
Area ratio be 0.05-0.5.
5. pump assembly according to claim 1-4, which is characterized in that the first port is equipped with first and stops
It returns valve (24).
6. pump assembly according to claim 5, which is characterized in that the first check-valve (24) includes valve block (241)
With rivet (243), the valve block (241) is set on the inner wall of the cavity (21) by the rivet (243), and the valve
Piece (241) lid closes in the first port.
7. pump assembly according to claim 6, which is characterized in that the first check-valve (24) further includes baffle
(242), the valve block (241) and the baffle (242) are set to the inner wall of the cavity (21) by the rivet (243)
On, and the baffle (242) is located at side of the valve block (241) far from the first port, the baffle (242) is for limiting
Make the open angle of the valve block (241).
8. pump assembly according to claim 7, which is characterized in that the baffle (242) includes the interconnecting piece being connected
And limiting section, the interconnecting piece are connect with the rivet (243), the limiting section is corresponding with the first port position, and
There is pre-determined distance between the limiting section and the first port.
9. pump assembly according to claim 6, which is characterized in that the thickness of the valve block (241) and the first end
The diameter ratio of mouth is 0.01-0.05.
10. a kind of compressor, which is characterized in that the compressor includes the described in any item pump assemblies of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821530307.2U CN208900353U (en) | 2018-09-18 | 2018-09-18 | A kind of pump assembly and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821530307.2U CN208900353U (en) | 2018-09-18 | 2018-09-18 | A kind of pump assembly and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208900353U true CN208900353U (en) | 2019-05-24 |
Family
ID=66572946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821530307.2U Active CN208900353U (en) | 2018-09-18 | 2018-09-18 | A kind of pump assembly and compressor |
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| CN (1) | CN208900353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026708A (en) * | 2018-09-18 | 2018-12-18 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of pump assembly and compressor |
-
2018
- 2018-09-18 CN CN201821530307.2U patent/CN208900353U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026708A (en) * | 2018-09-18 | 2018-12-18 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of pump assembly and compressor |
| CN109026708B (en) * | 2018-09-18 | 2023-09-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump body assembly and compressor |
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