CN207485740U - Diffuser and compressor - Google Patents
Diffuser and compressor Download PDFInfo
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- CN207485740U CN207485740U CN201720833681.9U CN201720833681U CN207485740U CN 207485740 U CN207485740 U CN 207485740U CN 201720833681 U CN201720833681 U CN 201720833681U CN 207485740 U CN207485740 U CN 207485740U
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- refrigerant
- diffuser
- ontology
- spray orifice
- compressor
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Abstract
The utility model discloses a kind of diffuser and compressor.The diffuser includes ontology, and refrigerant spray orifice is provided on the ontology.With the above mentioned technical proposal, misty liquid refrigerants is formed after high-pressure liquid refrigerant is by refrigerant spray orifice, since misty liquid refrigerants is stronger than the exchange capability of heat of gaseous coolant and is easier to evaporate than liquid refrigerants, therefore, the cooling effect of compressor intermediate flow channel gas not only can be effectively promoted, will not also make liquid occur in impeller below.In addition, directly being sprayed by high-pressure liquid refrigerant, the flow of liquid injection can be effectively promoted, so as to promote the speed of refrigerant in runner, effectively overcomes surge phenomenon.
Description
Technical field
The utility model is related to Compressor Technology field, in particular to a kind of diffuser and compressor.
Background technology
When centrifugal compressor uses multi-stage compression, the compression effect that can promote later stages is cooled down to intermediate flow channel gas
Rate.Freeze centrifugal compressor in, in generally use flash evaporation by throttling gaseous coolant to compressor intermediate flow channel gas into
Row cooling, but since the enthalpy of gaseous coolant is higher, cooling efficiency is general；Simultaneously as flash evaporation pressure cannot be too high, otherwise
It easily generates and mends gas carrying liquid phenomenon, lead to the gas flow of tonifying Qi can only be controlled in a small range.
In addition, compressor, when being run close to surge area, gas flow is too small in intermediate flow channel, need at this time a large amount of tonifying Qi with
Surge is eliminated, and cannot effectively overcome surge by the way that the flow of flash evaporation tonifying Qi is too small.For this purpose, the centrifugal compressor that freezes at present
Refrigeration cycle efficiency is promoted in second vapor injection and surge is overcome to be respectively controlled usually as two individual control targes, is tied
Structure is complicated.
Utility model content
A kind of diffuser and compressor are provided in the utility model embodiment, to solve in the prior art to intermediate flow channel gas
The cooling efficiency of body is not high, cannot effectively overcome the problems, such as surge.
To achieve the above object, the utility model embodiment provides a kind of diffuser, including ontology, is set on the ontology
There is refrigerant spray orifice.
Preferably, multiple refrigerant spray orifices are provided on the ontology, week of the multiple refrigerant spray orifice along the ontology
To setting.
Preferably, the multiple one annular of refrigerant spray orifice arrangement form or multiple nested settings successively from the inside to the outside
Annular.
Preferably, each annular includes the 15-45 refrigerant spray orifices.
Preferably, the aperture of the refrigerant spray orifice is less than or equal to 0.5mm.
Preferably, the air-flow in the diffuser runner that the spray angle of the refrigerant spray orifice is formed with the diffuser
Between angle be 40-70 degree.
Preferably, being formed with refrigerant accommodating chamber on the ontology, the refrigerant accommodating chamber is connected with the refrigerant spray orifice.
Preferably, the side of the ontology is formed with refrigerant holding tank, lid is provided at the top of the refrigerant holding tank
Plate, the cover plate lid to form the refrigerant receiving in the openend of the refrigerant holding tank so as to which the refrigerant holding tank be sealed
Chamber.
Preferably, the cover board and the split type connection of the refrigerant holding tank or integrated molding.
Preferably, the refrigerant holding tank and the split type connection of the ontology or integrated molding.
Preferably, the refrigerant holding tank and the cover board are in a ring.
Preferably, it is formed with refrigerant inlet in the refrigerant accommodating chamber.
Preferably, the refrigerant inlet is opened on the cover board.
The utility model additionally provides a kind of compressor, including above-mentioned diffuser.
Preferably, the compressor further includes the hydrojet stream for adjusting the diffuser according to compressor operating operating mode
The flow control valve of amount, the flow control valve are arranged on the cold media input tube road being connect with the refrigerant accommodating chamber of the diffuser
On.
By adopting the above-described technical solution, misty liquid refrigerants is formed after high-pressure liquid refrigerant is by refrigerant spray orifice,
Since misty liquid refrigerants is stronger than the exchange capability of heat of gaseous coolant and is easier to evaporate than liquid refrigerants, it not only can be effective
The cooling effect of compressor intermediate flow channel gas is promoted, will not also make liquid occur in impeller below.In addition, pass through high pressure liquid
State refrigerant directly sprays, and can effectively promote the flow of liquid injection, so as to promote the speed of refrigerant in runner, effectively overcomes asthma
It shakes phenomenon.
Description of the drawings
Fig. 1 is the structure diagram of the compressor of the utility model embodiment；
Fig. 2 is the front view of the diffuser of the utility model embodiment；
Fig. 3 is the sectional view of the diffuser of the utility model embodiment.
Reference sign：1st, ontology；2nd, refrigerant spray orifice；3rd, refrigerant accommodating chamber；4th, refrigerant holding tank；5th, cover board；6th, it is cold
Matchmaker's import；7th, diffuser；8th, refrigerant delivery pipe；9th, refrigerant inlet；10th, preceding air deflector；11st, adjustable vane；12nd, one stage impeller；
13rd, intermediate flow channel；14th, two level diffuser；15th, return channel；16th, sencond stage impeller；17th, main shaft；18th, babinet；19th, volute casing.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, but not as to this practicality
Novel restriction.
The utility model embodiment provides a kind of diffuser, particularly a kind of level-one diffusion in compound compressor
Device.The diffuser includes ontology 1, wherein, it is provided with refrigerant spray orifice 2 on the ontology 1.
Due to being provided with refrigerant spray orifice 2 on diffuser, misty liquid is formed after high-pressure liquid refrigerant is by refrigerant spray orifice 2
State refrigerant, since misty liquid refrigerants is stronger than the exchange capability of heat of gaseous coolant and is easier to evaporate than liquid refrigerants, no
But the cooling effect of compressor intermediate flow channel gas can be effectively promoted, will not also make liquid occur in impeller below.It is in addition, logical
It crosses high-pressure liquid refrigerant directly to spray, can effectively promote the flow of liquid injection, so as to promote the speed of refrigerant in runner, have
Effect overcomes surge phenomenon.
Preferably, multiple refrigerant spray orifices 2 are provided on the ontology 1, the multiple refrigerant spray orifice 2 is along the ontology 1
It is circumferentially disposed.
Preferably, one annular of the multiple 2 arrangement form of refrigerant spray orifice or multiple nested settings successively from the inside to the outside
Annular.As it can be seen that annular in the utility model can be single-layer or multi-layer, wherein, the number of plies number depend primarily on cooling institute
The flow that needs and overcome flow needed for surge.To promote the cooling effect of compressor intergrade gas and promoting surge gram
Ability is taken, recommends the annular using multilayer.
In view of the manufacture cost and implementation result of refrigerant spray orifice 2, preferably with the annular of layer 2-3.Wherein, each
The annular may include the 15-45 refrigerant spray orifices 2, it is highly preferred that the aperture of the refrigerant spray orifice 2 is less than or equal to
0.5mm。
In one more preferably embodiment, in order to reduce the impact of the hydrojet of refrigerant spray orifice 2 and compressor mainstream gas
Loss, the spray angle of refrigerant spray orifice 2 is preferably close to air-flow angle.It is highly preferred that spray angle and the institute of the refrigerant spray orifice 2
The angle stated between the air-flow in the diffuser runner that diffuser is formed is 40-70 degree.
In Fig. 1 to embodiment shown in Fig. 3, it is preferable that refrigerant accommodating chamber 3, the refrigerant are formed on the ontology 1
Accommodating chamber 3 is connected with the refrigerant spray orifice 2.High-pressure liquid refrigerant is introduced into refrigerant accommodating chamber 3, is then uniformly distributed to again every
At a refrigerant spray orifice 2.Refrigerant accommodating chamber 3 plays the role of limitation and accommodates high-pressure liquid refrigerant, makes what refrigerant was limited at it
It is more conducive to keep high pressure conditions, and sprayed by refrigerant spray orifice 2 in certain space.
As shown in figures 1 and 3, it is preferable that the side of the ontology 1 is formed with refrigerant holding tank 4, the refrigerant holding tank
4 top is provided with cover board 5, and the cover board 5 is covered in the openend of the refrigerant holding tank 4 thus by the refrigerant holding tank 4
Sealing forms the refrigerant accommodating chamber 3.Wherein, refrigerant holding tank 4 can be the shape for protruding from ontology 1 as shown in figures 1 and 3
Formula can also use the form of grooves of recessed ontology 1, in order to ensure sufficiently large volume, manufacture easy to process, it is preferred to use this
Mode in utility model diagram embodiment.
In the utility model, the structure for forming refrigerant holding tank can be integrated in the ontology of diffuser, can also
It is that independent structure is embedded on ontology.For this purpose, the cover board 5 and the 4 split type connection of refrigerant holding tank or integrated molding, into
One step preferably, the refrigerant holding tank 4 and the 1 split type connection of ontology or integrated molding.
In Fig. 1 to embodiment shown in Fig. 3, it is preferable that the refrigerant holding tank 4 and the cover board 5 are in a ring.This
Sample, cricoid cover board 5 are covered in the left side openend of cricoid refrigerant holding tank 4, so as to form the refrigerant accommodating chamber described in one
3。
It is highly preferred that the utility model is also formed with refrigerant inlet 6 in the refrigerant accommodating chamber 3.High-pressure liquid refrigerant
Entered in refrigerant delivery pipe 8 by the refrigerant inlet 9 that is arranged on housing, and the port of export of refrigerant delivery pipe then with refrigerant inlet
6 connections, in this way, high-pressure liquid refrigerant is just transported in refrigerant accommodating chamber 3.It is highly preferred that the refrigerant inlet 6 is opened in institute
It states on cover board 5.
The utility model additionally provides a kind of compressor, particularly a kind of multifunctional centrifugal compressor.The compressor includes
Above-mentioned diffuser 7.It is highly preferred that diffuser 7 is level-one diffuser.
It please refers to Fig.1, gaseous coolant is after the adjustable vane 11 being arranged in preceding air deflector 10, in one stage impeller 12
Effect is lower to enter intermediate flow channel 13.High-pressure liquid refrigerant is entered by refrigerant delivery pipe 8 in refrigerant accommodating chamber 3 by refrigerant inlet 9,
Then it is sprayed into intermediate flow channel 13 outward by the refrigerant spray orifice 2 on ontology 1.Then by return channel 15 by sencond stage impeller 16 into
In the runner for entering two level diffuser 14, finally enter in the volute casing 19 that babinet 18 is formed.Wherein, one stage impeller 12 and two level leaf
Wheel 16 is mounted on main shaft 17, in being rotated by for main shaft 17.
As a result of the above-mentioned hydrojet structure with refrigerant spray orifice 2, the compressor in the utility model can expand in level-one
One or more layers cricoid refrigerant spray orifice 2 is formed on depressor, in this way, in compressor operating, highly pressurised liquid refrigerant is through overcompression
High-pressure liquid refrigerant channel inside machine enters inside compressor, and the intermediate flow of compressor is injected into using refrigerant spray orifice 2
Road 13.When high-pressure liquid refrigerant is after refrigerant spray orifice 2, misty and evaporation endothermic is formed, so as to reduce in compressor runner
Gas temperature, and then promote the compression efficiency of later stages.
When compressor operating is near surging condition, the intermediate flow channel 13 of compressor is gone out first due to gas velocity deficiency
Now large-scale gas segregation phenomenon.The utility model can increase refrigerant spray orifice 2 by promoting the pressure in refrigerant accommodating chamber 3
Hydrojet quality, so as to increase the gas flow in compressor runner, to promote the speed of gas in runner, reduce gas swirl
It is detached with gas, so as to overcome surge.
Preferably, the compressor further includes the hydrojet stream for adjusting the diffuser 7 according to compressor operating operating mode
The flow control valve of amount, the flow control valve are arranged on the cold media input tube being connect with the refrigerant accommodating chamber 3 of the diffuser 7
On the road.In this way, when the compressor is normally operated, the required spouting liquid of runner cooling is smaller, but is being breathed heavily in compressor operating
During operating mode of shaking, so that the surge of compressor is eliminated, it needs to spray more flow and can overcome, at this point, can then pass through the flow
Flow is adjusted in regulating valve, to increase flow.
Through the above technical solutions, the cooling of intermediate flow channel gas is imitated when the utility model can promote compressor operating
Fruit so as to promote compressor operating efficiency, while can promote the ability that compressor overcomes surge, effectively widen centrifugal compressor
Range of operation.
Certainly, it is the preferred embodiment of the utility model above.It should be pointed out that the ordinary skill for the art
For personnel, under the premise of the utility model basic principle is not departed from, several improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also considered as with retouching.
Claims (15)
1. a kind of diffuser, which is characterized in that including ontology (1), refrigerant spray orifice (2), high pressure liquid are provided on the ontology (1)
State refrigerant forms misty liquid refrigerants by the refrigerant spray orifice (2) afterwards.
2. diffuser according to claim 1, which is characterized in that be provided with multiple refrigerant spray orifices on the ontology (1)
(2), the multiple refrigerant spray orifice (2) is along the circumferentially disposed of the ontology (1).
3. diffuser according to claim 2, which is characterized in that one ring of the multiple refrigerant spray orifice (2) arrangement form
Shape or multiple annulars that nesting is set successively from the inside to the outside.
4. diffuser according to claim 3, which is characterized in that each annular includes the 15-45 refrigerant sprays
Hole (2).
5. diffuser according to claim 1, which is characterized in that the aperture of the refrigerant spray orifice (2) is less than or equal to
0.5mm。
6. diffuser according to claim 1, which is characterized in that the spray angle of the refrigerant spray orifice (2) and the expansion
Angle between the air-flow in diffuser runner that depressor is formed is 40-70 degree.
7. diffuser according to claim 1, which is characterized in that refrigerant accommodating chamber (3) is formed on the ontology (1),
The refrigerant accommodating chamber (3) connects with the refrigerant spray orifice (2).
8. diffuser according to claim 7, which is characterized in that the side of the ontology (1) is formed with refrigerant holding tank
(4), cover board (5) is provided at the top of the refrigerant holding tank (4), the cover board (5) covers opening in refrigerant holding tank (4)
Mouth end by the refrigerant holding tank (4) sealing so that form the refrigerant accommodating chamber (3).
9. diffuser according to claim 8, which is characterized in that the cover board (5) and refrigerant holding tank (4) split
Formula is connected or is integrally formed.
10. diffuser according to claim 8, which is characterized in that the refrigerant holding tank (4) and the ontology (1) point
Body formula is connected or is integrally formed.
11. diffuser according to claim 8, which is characterized in that the refrigerant holding tank (4) and the cover board (5) are in
Annular.
12. diffuser according to claim 8, which is characterized in that be formed with refrigerant inlet on the refrigerant accommodating chamber (3)
(6)。
13. diffuser according to claim 12, which is characterized in that the refrigerant inlet (6) is opened in the cover board (5)
On.
14. a kind of compressor, which is characterized in that including the diffuser (7) described in any one of claim 1 to 13.
15. compressor according to claim 14, which is characterized in that the compressor further includes to be transported according to compressor
Row operating mode adjusts the flow control valve of the hydrojet flow of the diffuser (7), and the flow control valve is arranged on and the diffusion
The cold media input tube road of refrigerant accommodating chamber (3) connection of device (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720833681.9U CN207485740U (en) | 2017-07-10 | 2017-07-10 | Diffuser and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720833681.9U CN207485740U (en) | 2017-07-10 | 2017-07-10 | Diffuser and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207485740U true CN207485740U (en) | 2018-06-12 |
Family
ID=62484263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720833681.9U Active CN207485740U (en) | 2017-07-10 | 2017-07-10 | Diffuser and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207485740U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355431A (en) * | 2017-07-10 | 2017-11-17 | 珠海格力电器股份有限公司 | Diffuser and compressor |
-
2017
- 2017-07-10 CN CN201720833681.9U patent/CN207485740U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355431A (en) * | 2017-07-10 | 2017-11-17 | 珠海格力电器股份有限公司 | Diffuser and compressor |
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