CN206478910U - A kind of reservoir and its compressor - Google Patents
A kind of reservoir and its compressor Download PDFInfo
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- CN206478910U CN206478910U CN201720098457.XU CN201720098457U CN206478910U CN 206478910 U CN206478910 U CN 206478910U CN 201720098457 U CN201720098457 U CN 201720098457U CN 206478910 U CN206478910 U CN 206478910U
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- long
- air suction
- inner pipe
- narrow
- spill port
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Abstract
The utility model is related to a kind of reservoir, including liquid storage housing, filter and air suction inner pipe, and air suction inner pipe middle and lower part side wall is provided with least one long and narrow spill port.Compared to prior art, the utility model is by the way that spill port to be set to long and narrow shape, increase the coefficient of partial resistance of spill port, compared to existing smooth circular spill port, considerably increase the mechanical power loss of liquid, the liquid fully evaporation of inflow spill port is become gas, be prevented effectively from the liquid knockout pump housing and cause hydraulic compression.
Description
Technical field
The utility model is related to compressor field, more particularly to it is a kind of improve oil return return liquid status reservoir and its pressure
Contracting machine.
Background technology
Please refer to Fig. 1 to Fig. 3, Fig. 1 is the structural representation of existing compressor；Fig. 2 is reservoir shown in Fig. 1 along A-
The sectional view in A directions, the solid arrow in reservoir wherein shown in Fig. 2 represents that liquid is flowed to, and dotted arrow represents gas
Flow direction；Fig. 3 is the enlarged drawing of existing spill port.
Existing air conditioning high efficiency rotary compressor freezes, and existing rotary compressor includes compression assembly 1 ', liquid storage
Device 2 ' and associated satellite part.Liquid refrigerants and refrigerator oil are described via being transported to after the reservoir 2 ' progress gas-liquid separation
Compression assembly 1 '.The compression assembly 1 ' includes compression shell 11 ', motor 12 ' and the pump housing 13 ' and associated satellite part；It is described
The bottom of compression shell 11 ' is provided with the oil pocket for being used for storing liquid refrigerants and refrigerator oil.The pump housing 13 ' is fixed on the compression
Housing ' bottom, and be immersed directly in liquid refrigerants and refrigerator oil.
The reservoir 2 ' includes liquid storage housing 21 ', filter 22 ' and air suction inner pipe 23 ' and associated satellite part.Institute
Stating the bottom memory of liquid storage housing 21 ' has liquid refrigerants and refrigerator oil；The filter 22 ' is fixed on the liquid storage housing
In 21 ', and positioned at the top of the liquid storage housing 21 '；The air suction inner pipe 23 ' is arranged in the liquid storage housing 21 ', and institute
The top for stating air suction inner pipe 23 ' is connected to the filter 22 ', and bottom is immersed in liquid refrigerants and refrigerator oil, and is run through
The bottom of liquid storage housing 21 ' and it is inserted into the oil pocket of the liquid storage housing 21 ', to be communicated with oil pocket.The air suction inner pipe
23 ' lower sides are provided with spill port 231 '.Wherein, existing spill port 231 ' is usually one or more manholes.If setting
The single cross-sectional area of spill port 231 ' is that s, flow rate of liquid are that v, fluid density are r, then pass through the liquid of single spill port 231 '
Body flow Q is：Q=s*v* ρ.
Generally, liquid refrigerants and refrigerator oil carry out gas-liquid separation in liquid storage housing 21 ' by the filter 22 '
Afterwards, gas therein is sucked the pump housing 13 ' by air suction inner pipe 23 ' and discharged after being compressed through the pump housing 13 ', and partially liq passes through tube wall
The liquid that spill port 231 ' is transported to the pump housing ' in, fail to enter the pump housing ' then continues to be stored in reservoir 2 '.But, part liquid
Body is inhaled into the pump housing by spill port 231 ' ' it is interior when fail evaporation in time and become gas, and hit the pump housing 1 ' and cause hydraulic compression.When
When hydraulic compression occurs, generally by the quantity that reduces spill port 231 ' or the cross-sectional area of single spill port 231 ' is reduced so as to low
Subtract the cross-sectional area of spill port 231 ', now, although hydraulic compression is improved, but it can be seen from fluid flow formula, when
When the cross-sectional area of spill port 231 ' is reduced, the fluid flow into the pump housing 13 ' also can bring oil return deficiency with reduction
New problem.
Utility model content
Based on this, the purpose of this utility model is there is provided a kind of reservoir, and it is by by the shape of cross section of spill port
Elongated shape is set to, to increase the coefficient of partial resistance of spill port, the mechanical power loss of liquid is considerably increased, inflow is returned
The liquid of oilhole is able to fully evaporation and becomes gas, is prevented effectively from the liquid knockout pump housing and causes hydraulic compression.
A kind of reservoir, including liquid storage housing, filter and air suction inner pipe, it is characterised in that：In the air suction inner pipe
Lower sides are provided with least one long and narrow spill port.
Compared to prior art, the utility model increases spill port by the way that spill port to be set to long and narrow shape
Coefficient of partial resistance, compared to existing circular spill port, considerably increases the mechanical power loss of liquid, makes the liquid of inflow spill port
Body is able to fully evaporation and becomes gas, is prevented effectively from the liquid knockout pump housing and causes hydraulic compression.
Further, the cross-sectional area of each long and narrow spill port and more than or equal to 2.5mm2；Described each long and narrow time
Length of the oilhole along air suction inner pipe axial direction is more than it along the circumferential length of air suction inner pipe.
Further, length of each long and narrow spill port along air suction inner pipe axial direction is at least it along air suction inner pipe circumference
3 times of length.
Further, the length circumferential along air suction inner pipe of each long and narrow spill port is for 0.7-1.3mm, along air suction inner pipe
The length of axial direction is 3.5-8mm.
Further, the air suction inner pipe lower sides are provided with least two long and narrow spill ports；Described at least two is long and narrow
Spill port is arranged on the homonymy of the air suction inner pipe, and positioned at different height.
Further, the air suction inner pipe lower sides are provided with least two long and narrow spill ports；Described at least two is long and narrow
Spill port is arranged on the heteropleural of the air suction inner pipe, and positioned at different height.
Further, the air suction inner pipe lower sides are provided with least two long and narrow spill ports；Described at least two is long and narrow
Spill port is circumferentially distributed along the air suction inner pipe, and on sustained height.
Further, the air suction inner pipe lower sides are provided with least two long and narrow spill ports；Described two long and narrow oil returns
Hole is circumferentially distributed along the air suction inner pipe, and each long and narrow spill port partly overlaps in height.
Further, the air suction inner pipe lower sides are provided with two long and narrow spill ports；Described two long and narrow spill ports with
The center line of the air suction inner pipe is that symmetry axis is symmetrical.
Compared to prior art, the utility model increases spill port by the way that spill port to be set to long and narrow shape
Coefficient of partial resistance, compared to existing circular long and narrow spill port, considerably increases the mechanical power loss of liquid, makes long and narrow time of inflow
The liquid of oilhole is able to fully evaporation and becomes gas, is prevented effectively from the liquid knockout pump housing and causes hydraulic compression.
The utility model also provides a kind of compressor, including compression assembly and reservoir, reservoir, including liquid storage shell simultaneously
Body, filter and air suction inner pipe, the air suction inner pipe lower sides are provided with least one long and narrow spill port；The long and narrow oil return
The shape of cross section in hole is polygon.
Compared to prior art, the utility model is increased long and narrow by the way that long and narrow spill port to be set to long and narrow shape
The coefficient of partial resistance of spill port, compared to existing circular long and narrow spill port, considerably increases the mechanical power loss of liquid, makes stream
Enter long and narrow spill port liquid be able to fully evaporation become gas, be prevented effectively from the liquid knockout pump housing and cause hydraulic compression.
In order to more fully understand and implement, the utility model is described in detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the structural representation of existing compressor；
Fig. 2 is sectional view of the reservoir shown in Fig. 1 along A-A directions；
Fig. 3 is the enlarged drawing of existing spill port；
Fig. 4 is the structural representation of reservoir in the utility model embodiment；
Fig. 5 is the enlarged drawing of B shown in Fig. 4；
Fig. 6 is the side structure schematic view of reservoir in the utility model embodiment；
Fig. 7 is the distressed structure schematic diagram of reservoir in the utility model embodiment；
Fig. 8 is the enlarged drawing of C shown in Fig. 7；
Fig. 9 is the side structure schematic view of reservoir shown in Fig. 7.
Embodiment
In order to prevent new problem that oil return deficiency is brought, the fluid flow into the pump housing low can not subtract, public by flow rate calculation
Knowable to formula, flow Q=sv ρ, flow rate of liquid v, fluid density are that ρ is constant under same service condition, and fluid flow Q is not
Low to subtract, then the cross-sectional area s of spill port low can not subtract.
When the timings of flow Q mono-, it is assumed that liquid condition is that liquid condition is 2 in 1, air suction inner pipe in reservoir, is exerted according to uncle
Sharp equation：
Wherein,For the energy of state 1,For the energy of state 2, hsFor
State 1 is to the mechanical power loss produced during state 2.Some mechanical energy hsIt is eventually converted into heat energy and by liquid absorption,
Gas is evaporated to after liquid heat absorption, and is worked asWhen, liquid all flashes to gas, just can be into
Work(evades liquid hammer.
Further, mechanical power loss formula isFrom formula, flow velocity v under same service condition,
When gravity acceleration g is constant, mechanical power loss hsWith coefficient of partial resistanceIt is directly proportional, that is, increases coefficient of partial resistanceI.e.
Increase mechanical power loss h can be achieveds；And resistance coefficientDetermined by the shape that abrupt-change cross section is spill port.
Therefore, the utility model changes spill port according to above-mentioned principle in the case where not reducing spill port cross-sectional area
Shape avoid the liquid hammer from producing.
Specifically, the compressor includes compression assembly and reservoir 1 and associated satellite part.Liquid refrigerants and refrigerator oil
The compression assembly is transported to after carrying out gas-liquid separation via the reservoir 1.
The compression assembly includes compression shell, motor and the pump housing and associated satellite part.The compression shell bottom is set
There is the oil pocket for storing liquid refrigerants and refrigerator oil.The pump housing is fixed on the bottom of the compression shell, and directly soaks
Bubble is in liquid refrigerants and refrigerator oil.
Please refer to Fig. 4 to Fig. 6, Fig. 4 is the structural representation of reservoir in the utility model embodiment；Fig. 5 is Fig. 4
Shown B enlarged drawing；Fig. 6 is the side structure schematic view of reservoir in the utility model embodiment, the storage wherein shown in Fig. 5
Solid arrow in liquid device represents that liquid is flowed to, and dotted arrow represents gas flow.
The reservoir 1 includes liquid storage housing 11, filter 12 and air suction inner pipe 13 and associated satellite part.The storage
The bottom memory of liquid housing 11 has liquid refrigerants and refrigerator oil；The filter 12 is fixed in the liquid storage housing 11,
And positioned at the top of the liquid storage housing 11；The air suction inner pipe 13 is arranged in the liquid storage housing 11, and in the air-breathing
The top of pipe 13 is connected to the filter 12, and bottom is immersed in liquid refrigerants and refrigerator oil, and through the liquid storage shell
The bottom of body 11 and it is inserted into the oil pocket of the liquid storage housing 11, to be communicated with oil pocket.
The middle and lower part side wall of the air suction inner pipe 13 is provided with least one long and narrow spill port 131；Each long and narrow spill port
131 cross-sectional area and more than or equal to 2.5mm2.In the present embodiment, the long and narrow spill port 131 is located at air suction inner pipe 13
Middle and lower part 1/2 at.
In the present embodiment, the long and narrow spill port 131 is less than it along air suction inner pipe axle along the circumferential length d1 of air suction inner pipe
To length d2.Length of each long and narrow spill port along air suction inner pipe axial direction is at least it along the circumferential length of air suction inner pipe
3 times.
In the present embodiment, the shape of cross section of the long and narrow spill port 131 is long and narrow rectangle.But, the utility model
In, the shape of cross section of the long and narrow spill port 131 does not do specific restriction, and it can be long and narrow pentagon or long and narrow
Hexagon or long and narrow regular shape or long and narrow irregular shape.
In the present embodiment, the air suction inner pipe 13 is provided with least two long and narrow spill ports 131；Described at least two long and narrow times
Oilhole 131 is arranged on the homonymy of the air suction inner pipe 13, and positioned at different height.
Give a concrete illustration and illustrate below：
Assuming that the radius of existing two circular spill ports 131 is 2.4mm, then the cross section of existing each spill port 131
Product andNow, hydraulic compression problem occurs, experiment proves that caused by 131 times liquid of spill port.
Using long and narrow spill port 131 of the present utility model, set described two long and narrow rectangle spill ports 131 along air suction inner pipe
Circumferential d1 length is 0.7mm, is 3.5mm along the length d2 of air suction inner pipe axial direction, then each long and narrow spill port 131 is transversal
Area s=2 × 0.7 × 3.5=4.9mm2.Now, the long and narrow cross-sectional area of rectangle spill port 131 of the present utility model is with showing
The cross-sectional area for the circular spill port 131 having is roughly equal, but the machine of long and narrow rectangle spill port 131 of the present utility model
The tool loss of energy substantially increases, experiment proves that liquid hammer disappears, and meets the requirement of return flow.
As deformation of the present utility model, the shape of cross section of the spill port 131 can be also pentagon or six deformations etc.
Other polygonized structures.
Please refer to Fig. 7 to Fig. 9, Fig. 7 is the distressed structure schematic diagram of reservoir in the utility model embodiment；Fig. 8
It is the enlarged drawing of C shown in Fig. 7；Fig. 9 is the side structure schematic view of reservoir shown in Fig. 7.It is used as deformation of the present utility model, institute
Air suction inner pipe lower sides are stated provided with least two long and narrow spill ports 132 '；At least two long and narrow spill port is along the air-breathing
Inner tube is uniformly distributed, and each long and narrow spill port partly overlaps in height.
As further deformation of the present utility model, the air suction inner pipe lower sides are provided with least two long and narrow oil returns
Hole；At least two long and narrow spill port is uniformly distributed along the air suction inner pipe, and on sustained height.
Compared to prior art, the utility model increases spill port by the way that spill port to be set to long and narrow shape
Coefficient of partial resistance, compared to existing circular spill port, considerably increases the mechanical power loss of liquid, makes the long and narrow spill port of inflow
Liquid be able to fully evaporation become gas, be prevented effectively from the liquid knockout pump housing and cause hydraulic compression.
Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.
Claims (10)
1. a kind of reservoir, including liquid storage housing, filter and air suction inner pipe, it is characterised in that：Under in the air suction inner pipe
Portion side wall is provided with least one long and narrow spill port.
2. reservoir according to claim 1, it is characterised in that：The cross-sectional area of each long and narrow spill port and it is more than
Or equal to 2.5mm2；Length of each long and narrow spill port along air suction inner pipe axial direction is more than it along the circumferential length of air suction inner pipe.
3. reservoir according to claim 2, it is characterised in that：Length of each long and narrow spill port along air suction inner pipe axial direction
Degree is at least it along 3 times circumferential of length of air suction inner pipe.
4. reservoir according to claim 3, it is characterised in that：Each long and narrow spill port it is circumferential along air suction inner pipe
Length is 0.7-1.3mm, is 3.5-8mm along the length of air suction inner pipe axial direction.
5. reservoir according to claim 1, it is characterised in that：The air suction inner pipe lower sides are narrow provided with least two
Long spill port；At least two long and narrow spill port is arranged on the homonymy of the air suction inner pipe, and positioned at different height.
6. reservoir according to claim 1, it is characterised in that：The air suction inner pipe lower sides are narrow provided with least two
Long spill port；At least two long and narrow spill port is arranged on the heteropleural of the air suction inner pipe, and positioned at different height.
7. reservoir according to claim 1, it is characterised in that：The air suction inner pipe lower sides are narrow provided with least two
Long spill port；At least two long and narrow spill port is circumferentially distributed along the air suction inner pipe, and on sustained height.
8. reservoir according to claim 1, it is characterised in that：The air suction inner pipe lower sides are narrow provided with least two
Long spill port；Described two long and narrow spill ports are circumferentially distributed along the air suction inner pipe, and each long and narrow spill port part in height
It is overlapping.
9. reservoir according to claim 1, it is characterised in that：The air suction inner pipe lower sides provided with two long and narrow time
Oilhole；Described two long and narrow spill ports are symmetrical using the center line of the air suction inner pipe as symmetry axis.
10. a kind of compressor, including compression assembly and reservoir, it is characterised in that：Also include any right in claim 1-9
It is required that described reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720098457.XU CN206478910U (en) | 2017-01-26 | 2017-01-26 | A kind of reservoir and its compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720098457.XU CN206478910U (en) | 2017-01-26 | 2017-01-26 | A kind of reservoir and its compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206478910U true CN206478910U (en) | 2017-09-08 |
Family
ID=59754500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720098457.XU Active CN206478910U (en) | 2017-01-26 | 2017-01-26 | A kind of reservoir and its compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206478910U (en) |
-
2017
- 2017-01-26 CN CN201720098457.XU patent/CN206478910U/en active Active
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