CN207297378U - The increasing enthalpy structure and screw compressor of compressor - Google Patents
The increasing enthalpy structure and screw compressor of compressor Download PDFInfo
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- CN207297378U CN207297378U CN201720832893.5U CN201720832893U CN207297378U CN 207297378 U CN207297378 U CN 207297378U CN 201720832893 U CN201720832893 U CN 201720832893U CN 207297378 U CN207297378 U CN 207297378U
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- increasing enthalpy
- valve block
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Abstract
The utility model, which provides a kind of increasing enthalpy structure of compressor and screw compressor, compressor, to be included：Cylinder body with compression chamber, the increasing enthalpy structure of compressor include：Including valve block, increasing enthalpy passage is provided with cylinder body, one end of increasing enthalpy passage is connected on compression chamber, and the other end is refrigerant upstream end；Valve block is arranged in increasing enthalpy passage, when the pressure in compression chamber is more than the pressure of refrigerant upstream end, valve block can prevent the refrigerant in compression chamber from being flowed out by increasing enthalpy passage outside cylinder body, when the pressure in compression chamber is less than the pressure of refrigerant upstream end, valve block can allow for refrigerant to enter compression chamber by increasing enthalpy passage.The utility model can reduce the clearance volume of compressor, and then improve the work efficiency of compressor, while also have design rationally, simple in structure, the advantages of easily making.
Description
Technical field
It the utility model is related to refrigeration technology field, the increasing enthalpy structure and screw compressor of more particularly to a kind of compressor.
Background technology
At present, the Gas-supplying enthalpy-increasing structure of compressor, which is utilized on the cylinder body of compressor, sets increasing enthalpy passage to lead to
Road, the increasing enthalpy passage are connected by non-return structure with external refrigerant source, to realize when carrying out Gas-supplying enthalpy-increasing to compressor, only
Return device conducting makes refrigerant enter the compression chamber of compressor by increasing enthalpy passage, when not carrying out Gas-supplying enthalpy-increasing to compressor, stops
Return device is closed to prevent the high-pressure refrigerant in compression chamber from overflowing.Check device of the prior art is provided in increasing enthalpy and leads to
It is so larger there are clearance volume outside road passage, and then the shortcomings that influence compressor operating efficiency.
Utility model content
The main purpose of the utility model is that providing the increasing enthalpy structure and screw compressor of a kind of compressor, it can subtract
The clearance volume of small compressor, and then improve the work efficiency of compressor.
The utility model provides a kind of increasing enthalpy structure of compressor, and the compressor includes the cylinder body with compression chamber；
The increasing enthalpy structure of the compressor includes：Including valve block, increasing enthalpy passage is provided with the cylinder body, the one of the increasing enthalpy passage
On the compression chamber, the other end is refrigerant upstream end for end connection；
The valve block is arranged in the increasing enthalpy passage, when the pressure in the compression chamber is more than the refrigerant upstream end
During pressure, the valve block can prevent the refrigerant in the compression chamber from being flowed out by the increasing enthalpy passage outside the cylinder body, when
When pressure in the compression chamber is less than the pressure of the refrigerant upstream end, the valve block can allow for refrigerant to pass through the increasing enthalpy
Passage enters the compression chamber.
More preferably, increasing enthalpy pipe is further included；
The increasing enthalpy pipe has the first connecting pin and second connection end, and first connecting pin is connected to the refrigerant and enters
End, the second connection end access refrigerant, refrigerant is entered the pressure by the increasing enthalpy passage via the increasing enthalpy pipe
Contracting intracavitary；
When the pressure in the compression chamber is more than the pressure in the increasing enthalpy pipe, the valve block can close described first
The port of connecting pin, when the pressure in the compression chamber is less than the pressure in the increasing enthalpy pipe, the valve block can open institute
State the port of the first connecting pin.
More preferably, the valve block can do first from the port for covering first connecting pin in the increasing enthalpy passage
Reciprocating motion of the position to the second place of the port away from first connecting pin.
More preferably, first connecting pin of the increasing enthalpy pipe is stretched into the increasing enthalpy passage.
More preferably, seal member is provided between the inner wall of the outer wall of the increasing enthalpy pipe and the increasing enthalpy passage, to seal
Close the gap between the increasing enthalpy pipe and the increasing enthalpy passage.
More preferably, the cross sectional shape of the increasing enthalpy passage is circle, and the valve block is interior for diameter and the increasing enthalpy passage
The valve block, the section of rectangle can will be cut into along plane where the axis of the increasing enthalpy passage by the cylinder that footpath matches
Shape, cornerwise length of the rectangle are more than the diameter of the increasing enthalpy passage.
More preferably, the thickness of the valve block is 1 to 1.5mm.
More preferably, be provided with least one notch at the edge of the valve block, the notch and the increasing enthalpy passage it is interior
Formed between wall and can allow for the first circulation passage that refrigerant flows through.
More preferably, when the increasing enthalpy structure of the compressor includes increasing enthalpy pipe, the notch to the valve block center is most
Small distance is more than the radius of the port of first connecting pin.
More preferably, section is set in the side of the valve block, to form the notch.
More preferably, the cross sectional shape of the notch is fan annular.
More preferably, the quantity of the notch is two or more, and is uniformly arranged along the circumferential direction of the valve block.
More preferably, the increasing enthalpy passage includes：Interconnected first through hole and the second through hole, the first through hole pass through
Second through hole is connected with the compression chamber；
The diameter of the first through hole is more than the diameter of second through hole, makes the first through hole and second through hole
Between formed circular ring shape step surface,
The valve block is arranged in the first through hole, and protrusion is provided with the step surface, when the valve block is to institute
When stating the movement of step surface direction, the protrusion can stop the valve block, to make shape between the valve block and the step surface
Into gap.
More preferably, the raised quantity is two or more, and circumferentially uniformly distributed on the step surface.
More preferably, when the valve block sets notch, the minimum range for being raised to the first through hole axis is less than
The notch to the valve block center minimum range.
It is more preferably, described that raised there are gap between the inner wall of the first through hole.
More preferably, when the valve block sets notch, the ultimate range for being raised to the first through hole axis is less than
Or the minimum range equal to the notch to the valve block center.
The another aspect of the utility model provides a kind of screw compressor, includes the increasing of the compressor of any of the above technical characteristic
Enthalpy structure, the increasing enthalpy passage are arranged on the fixed scroll of the screw compressor.
The increasing enthalpy structure of the compressor of the offer of the utility model, is arranged in the increasing enthalpy passage using the valve block,
When the pressure in the compression chamber is more than the pressure of the refrigerant upstream end, the valve block can be prevented in the compression chamber
Refrigerant is flowed out outside the cylinder body by the increasing enthalpy passage, when the pressure in the compression chamber is less than the refrigerant upstream end
During pressure, the valve block can allow for refrigerant to enter the technical solution of the compression chamber by the increasing enthalpy passage, can reduce
The clearance volume of compressor, and then the work efficiency of compressor is improved, while also there is design rationally, simple in structure, easy system
The advantages of making.
Brief description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and forms one of the utility model
Point, the schematic description and description of the utility model is used to explain the utility model, does not form to the utility model
Improper restriction.In the accompanying drawings：
Fig. 1 is one example structure schematic diagram of increasing enthalpy structure of the compressor of the utility model；
Fig. 2 is that the increasing enthalpy structure of the compressor of the utility model opens increasing enthalpy view；
Fig. 3 is that the increasing enthalpy structure of the compressor of the utility model does not open increasing enthalpy view；
Fig. 4 is the first form schematic diagram of Fig. 1 middle valve plates；
Fig. 5 is the left view of Fig. 4；
Fig. 6 is second of form schematic diagram of Fig. 1 middle valve plates；
Fig. 7 is the first raised set-up mode schematic diagram in Fig. 2 or Fig. 3；
Fig. 8 is raised second of set-up mode schematic diagram in Fig. 2 or Fig. 3；
Fig. 9 is the raised corresponding states schematic diagram in valve block and Fig. 7 in Fig. 4；
Figure 10 is the raised corresponding states schematic diagram in valve block and Fig. 8 in Fig. 6.
In figure：1st, cylinder body；11st, compression chamber；2nd, valve block；21st, notch；3rd, increasing enthalpy pipe；31st, the first connecting pin；4th, increasing enthalpy is led to
Road；41st, first through hole；42nd, the second through hole；43rd, step surface；44th, it is raised；5th, seal member；A, notch to valve block center most
Small distance；B, the catercorner length of valve block section rectangle；C, throttle slice thickness；D, increasing enthalpy pipe end port radius；E, it is logical to be raised to first
The minimum range of axially bored line；F, it is raised to the ultimate range of first through hole axis.
Embodiment
It is specific below in conjunction with the utility model to make the purpose of this utility model, technical solution and advantage clearer
Technical solutions of the utility model are clearly and completely described in embodiment and corresponding attached drawing.Obviously, described embodiment
Only it is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, this area
Those of ordinary skill's all other embodiments obtained without making creative work, belong to the utility model
The scope of protection.
As shown in Figure 1, 2, 3, the increasing enthalpy structure of a kind of compressor, the compressor include the cylinder body 1 with compression chamber 11.Should
The increasing enthalpy structure of compressor includes valve block 2, and increasing enthalpy passage 4 is provided with cylinder body 1, and one end connection of increasing enthalpy passage 4 is being compressed
On chamber 11, the other end is refrigerant upstream end (not shown).Valve block 2 is arranged in increasing enthalpy passage 4, the pressure in compression chamber 11
More than refrigerant upstream end pressure when, valve block 2 can prevent refrigerant in compression chamber 11 by increasing enthalpy passage 4 flow out cylinder body 1 it
Outside, when the pressure in compression chamber 11 be less than refrigerant upstream end pressure when, valve block 2 can allow for refrigerant by increasing enthalpy passage 4 into
Enter compression chamber 11.
Valve block 2 is arranged on to the inside of increasing enthalpy passage 4, the volume of itself can be formed by valve block 2 in increasing enthalpy passage 4
Portion's volume occupies, and can reduce the clearance volume of compressor, and then improves the work efficiency of compressor, simultaneously because to increasing enthalpy
Passage non-return work completed simply by this component of valve block 2 so that the increasing enthalpy structure have it is simple in structure, easily
Make, it is of low cost the advantages of.
Specifically, further include：Increasing enthalpy pipe 3, increasing enthalpy pipe 3 have the first connecting pin 31 and second connection end (not shown),
First connecting pin 31 corresponds to and is connected on refrigerant upstream end, second connection end access refrigerant (such as being connected in shwoot system),
Refrigerant is set to enter via increasing enthalpy pipe 3 by increasing enthalpy passage 4 in compression chamber 11.Valve block 2 is arranged in increasing enthalpy passage 4, works as pressure
When pressure in contracting chamber 11 is more than the pressure in increasing enthalpy pipe 3, valve block 2 can close the port of the first connecting pin 31, prevent from compressing
Refrigerant adverse current in chamber 11 is into increasing enthalpy pipe 3, when the pressure in compression chamber 11 is less than the pressure in increasing enthalpy pipe 3,2 energy of valve block
The port of the first connecting pin 31 is enough opened, end of the refrigerant in increasing enthalpy pipe 3 by the first connecting pin 31 can be enable at this time
Mouth enters in compression chamber 11, and Gas-supplying enthalpy-increasing is carried out to compressor to realize.
Specifically, valve block 2 can be done in increasing enthalpy passage 4 from the first position of the port of the first connecting pin 31 of covering to remote
From the reciprocating motion of the second place of the port of the first connecting pin 31.When the pressure in compression chamber 11 is more than the pressure in increasing enthalpy pipe 3
During power, it can be made by the effect of the pressure in compression chamber 11, valve block 2 moves to the port that can cover the first connecting pin 31
First position, and by the difference of pressure interior in compression chamber 11 and the pressure in increasing enthalpy pipe 3, valve block 2 is overlayed and is connected first
Connect makes valve block 2 by the port closed of the first connecting pin 31 on the end face at end 31.It should be noted that in actual fabrication, it is necessary to
The end face and the flatness and surface extra coarse degree of the end face of the first connecting pin 31 that 2 and first connecting pin 31 of guarantee valve block overlays, with
Ensure the seal between the end face of 2 and first connecting pin 31 of valve block.When needing to carry out Gas-supplying enthalpy-increasing to compression chamber 11, refrigeration
Agent flows to compression chamber 11 out of increasing enthalpy pipe 3, and the pressure in compression chamber 11 is less than the pressure in increasing enthalpy pipe 3 at this time, and valve block 2 exists at this time
The second place of pressure-driven valve block 2 in increasing enthalpy pipe 3 to the port away from the first connecting pin 31 move, makes the opening of valve block 2 the
The port of one connecting pin 31, at this moment the refrigerant in increasing enthalpy pipe 3 increasing enthalpy passage can be entered by the port of the first connecting pin 31
4, and then compression chamber 11 is flowed to, complete as compressor Gas-supplying enthalpy-increasing.
Further, the first connecting pin of increasing enthalpy pipe 3 is stretched into increasing enthalpy passage 4, and the outer wall and increasing enthalpy of increasing enthalpy pipe 3
Seal member 5 is provided between the inner wall of passage 4, to close the gap between increasing enthalpy pipe 3 and increasing enthalpy passage 4.So can
By stretching into the partial volume for occupying increasing enthalpy passage 4 of the increasing enthalpy pipe 3 in increasing enthalpy passage 4, make the distance of valve block 2 and compression chamber 11
Become closer to further reducing the clearance volume of compressor.It can also realize that increasing enthalpy pipe 3 connects with the sealing of increasing enthalpy passage 4 at the same time
Connect, prevent refrigerant from gap exudation therebetween.Specifically, seal member 5 is circular ring shape, on the inner wall of increasing enthalpy passage 4
Circumferentially arranged fluted (figure is to show), seal member 5 is arranged in groove, and is set on increasing enthalpy pipe 3.It can so protect
The fastness that seal member 5 is installed is demonstrate,proved, ensure that sealing effect.
As a kind of embodiment, the cross sectional shape of increasing enthalpy passage 4 is circle, and valve block 2 is diameter and increasing enthalpy passage 4
The cylinder that internal diameter matches, as shown in figure 5, valve block 2 can be cut into rectangle along plane where the axis of increasing enthalpy passage 4
Cross sectional shape, cornerwise length b of the rectangle is more than the diameter of increasing enthalpy passage 4.So it can prevent valve block 2 from leading in increasing enthalpy
Occurs the inside turned on one's side and be stuck in increasing enthalpy passage 4 in road 4.Specifically, the thickness c of valve block 2 can be 1 to 1.5mm.
Can be clearance fit between its middle valve plate 2 and the inner wall of increasing enthalpy passage 4, gap therebetween can be unilateral
0.01 to 0.015mm, to ensure that valve block smooth can be run in increasing enthalpy passage 4.
Further, at least one notch 21 is provided with the edge of valve block 2, makes the interior of notch 21 and increasing enthalpy passage 4
Formed between wall and can allow for the first circulation passage (figure is to show) that refrigerant flows through, the minimum of notch 21 to 2 center of valve block
Distance a is more than the radius d of the port of the first connecting pin 31.Using such technical solution, when refrigerant is from the first connecting pin 31
Port enter increasing enthalpy passage 4 after, the first circulation passage stream can be formed between the inner wall of notch 21 and increasing enthalpy passage 4
Cross, and enter compression chamber, it is necessary to which explanation, the net sectional area of the first circulation passage can be more than first in actual fabrication
The area of the port of connecting pin 31, to ensure the circulation efficiency of refrigerant.When the increasing enthalpy structure of the compressor includes increasing enthalpy pipe 3
When, the minimum range a of notch 21 to 2 center of valve block is more than the radius d of the port of the first connecting pin 31, can be covered in valve block 2
When on the port of the first connecting pin 31, avoid notch 21 overlapping with the port of the first connecting pin 31, ensure that valve block 2 connects to first
Connect effective covering of the port at end 31.
The set-up mode of notch 21 is introduced with two kinds of optional forms of valve block 2 in the present embodiment
The first form, as shown in figure 4, section is set in the side of valve block 2, to form notch 21.So make valve block 2
Making become simpler convenience.Specifically, the quantity of notch 21 can be two as shown in FIG., and be symmetrical arranged.The
Two kinds of forms, as shown in fig. 6, notch 21 of the cross sectional shape for fan annular can be set at the edge of valve block 2, in actual fabrication,
The quantity of notch 21 can be two or more, and be uniformly arranged along the circumferential direction of valve block 2, and 21 quantity of notch shown in figure is
Four.It should be noted that the concrete structure of valve block 21, however it is not limited to which both the above mode, can also use any other one
Kind can realize the mode of purpose of utility model.
As a kind of embodiment, as shown in Figure 2,3, increasing enthalpy passage 4 includes：First for being coaxially disposed and being interconnected
41 and second through hole 42 of through hole, first through hole 41 are connected by the second through hole 42 with compression chamber 11, and the diameter of first through hole 41 is big
In the diameter of the second through hole 42, make the step surface 43 that circular ring shape is formed between 41 and second through hole 42 of first through hole, valve block 2 is set
In first through hole 41, protrusion 44 is provided with step surface 43, when valve block 2 is moved to 43 direction of step surface, raised 44 energy
Enough stop valve block 2, to make to form gap between valve block 2 and step surface 43.It can so prevent valve block 2 from covering the second through hole 42
Lid, and influence the Gas-supplying enthalpy-increasing work of compressor.
More preferably, the quantity of protrusion 44 is two or more, and circumferentially uniformly distributed on step surface 43.
It is introduced in the present embodiment with two kinds of optional set-up modes of protrusion 44
The first set-up mode of protrusion 44, as shown in fig. 7, protrusion 44 can be connected with the inner wall of first through hole 41, has
Body is in use, when valve block 2 sets notch 21, such as when valve block 2 is using the first previously described form, valve block 2 with it is raised
Corresponding states between 44 is as shown in figure 9, the minimum range e of protrusion 44 to 41 axis of first through hole is less than notch into valve block 2
The minimum range a of the heart.Can so ensure that raised 44 pairs of valve blocks 2 form reliable stop, at this time valve block 2 and adjacent two it is convex
Rise 44 and step surface 43 be collectively forming the second circulation passage (not shown) that can allow for refrigerant to pass through, during increasing enthalpy tonifying Qi,
Refrigerant can pass sequentially through the first circulation passage, and the second circulation passage, into compression chamber 11.It is in actual fabrication
The net sectional area of one circulation passage can be more than the area of the port of the first connecting pin 31, to ensure that the circulation of refrigerant is imitated
Rate.
Second of set-up mode of protrusion 44, as shown in figure 8, there is seam between protrusion 44 and the inner wall of first through hole 41
Gap.The 3rd circulation passage that can allow for refrigerant to pass through can be so formed between protrusion 44 and the inner wall of first through hole 41
(not shown).During increasing enthalpy tonifying Qi, refrigerant can pass sequentially through the first circulation passage and the 3rd circulation passage enters compression chamber
In 11.The net sectional area of its 3rd circulation passage in actual fabrication can be more than the area of the port of the first connecting pin 31,
To ensure the circulation efficiency of refrigerant.
Specifically, when valve block 2 sets notch 21, such as during the first the previously described form of use of valve block 2, such as Figure 10
Shown, the maximum f distances of protrusion 44 to 41 axis of first through hole are less than or equal to notch 21 to the minimum range a at 2 center of valve block.
The another aspect of the utility model provides a kind of screw compressor, including the described increasing enthalpy structure of above example,
Increasing enthalpy passage 4 is arranged on the fixed scroll of the screw compressor.
Above example enables the utility model to reduce the clearance volume of compressor, and then improves the work effect of compressor
Rate, while also there is design rationally, it is simple in structure, the advantages of easily making.
The above description is only the embodiments of the present invention, is not intended to limit the present invention, for this area
Technical staff for, various modifications and changes may be made to the present invention.Where within the spirit and principles of the present invention,
Any modification, equivalent replacement, improvement and so on, should be included within the right of the utility model.
Claims (18)
1. a kind of increasing enthalpy structure of compressor, the compressor include：Cylinder body (1) with compression chamber (11), it is characterised in that：
The increasing enthalpy structure of the compressor includes valve block (2), and increasing enthalpy passage (4), the increasing enthalpy are provided with the cylinder body (1)
One end of passage (4) is connected on the compression chamber (11), and the other end is refrigerant upstream end；
The valve block (2) is arranged in the increasing enthalpy passage (4), when the pressure in the compression chamber (11) be more than the refrigerant into
When entering the pressure at end, the valve block (2) can prevent the refrigerant in the compression chamber (11) from being flowed out by the increasing enthalpy passage (4)
Outside the cylinder body (1), when the pressure in the compression chamber (11) is less than the pressure of the refrigerant upstream end, the valve block
(2) refrigerant can allow for enter the compression chamber (11) by the increasing enthalpy passage (4).
2. the increasing enthalpy structure of compressor according to claim 1, it is characterised in that：
Further include increasing enthalpy pipe (3)；
The increasing enthalpy pipe (3) has the first connecting pin (31) and second connection end, and first connecting pin (31) is connected to described
On refrigerant upstream end, the second connection end accesses refrigerant, refrigerant is passed through the increasing enthalpy via the increasing enthalpy pipe (3)
Passage (4) enters in the compression chamber (11)；
When the pressure in the compression chamber (11) is more than the pressure in the increasing enthalpy pipe (3), the valve block (2) can close institute
The port of the first connecting pin (31) is stated, when the pressure in the compression chamber (11) is less than the pressure in the increasing enthalpy pipe (3), institute
The port of first connecting pin (31) can be opened by stating valve block (2).
3. the increasing enthalpy structure of compressor according to claim 2, it is characterised in that：
The valve block (2) can do first from the port for covering first connecting pin (31) in the increasing enthalpy passage (4)
Reciprocating motion of the position to the second place of the port away from first connecting pin (31).
4. the increasing enthalpy structure of compressor according to claim 2, it is characterised in that：
First connecting pin (31) of the increasing enthalpy pipe (3) is stretched into the increasing enthalpy passage (4).
5. the increasing enthalpy structure of compressor according to claim 4, it is characterised in that：
Seal member (5) is provided between the outer wall of the increasing enthalpy pipe (3) and the inner wall of the increasing enthalpy passage (4), to close
Gap between the increasing enthalpy pipe (3) and the increasing enthalpy passage (4).
6. the increasing enthalpy structure of the compressor according to claim 1 to 5 any one, it is characterised in that：
The cross sectional shape of the increasing enthalpy passage (4) is circle, and the valve block (2) is diameter and the internal diameter of the increasing enthalpy passage (4)
The valve block (2), cutting for rectangle can be cut into along plane where the axis of the increasing enthalpy passage (4) by the cylinder to match
Face shape, cornerwise length (b) of the rectangle are more than the diameter of the increasing enthalpy passage (4).
7. the increasing enthalpy structure of compressor according to claim 6, it is characterised in that：
The thickness (c) of the valve block (2) is 1 to 1.5mm.
8. the increasing enthalpy structure of compressor according to claim 6, it is characterised in that：
It is provided with least one notch (21) at the edge of the valve block (2), the notch (21) and the increasing enthalpy passage (4)
Formed between inner wall and can allow for the first circulation passage that refrigerant flows through.
9. the increasing enthalpy structure of compressor according to claim 8, it is characterised in that：
When the increasing enthalpy structure of the compressor includes increasing enthalpy pipe (3), the minimum of the notch (21) to the valve block (2) center
Distance (a) is more than the radius (d) of the port of first connecting pin (31).
10. the increasing enthalpy structure of compressor according to claim 9, it is characterised in that：
Section is set in the side of the valve block (2), to form the notch (21).
11. the increasing enthalpy structure of compressor according to claim 9, it is characterised in that：
The cross sectional shape of the notch (21) is fan annular.
12. the increasing enthalpy structure of compressor according to claim 9, it is characterised in that：
The quantity of the notch (21) is two or more, and is uniformly arranged along the circumferential direction of the valve block (2).
13. the increasing enthalpy structure of the compressor according to claim 1 to 5 any one, it is characterised in that：
The increasing enthalpy passage (4) includes：Interconnected first through hole (41) and the second through hole (42), the first through hole (41)
Connected by second through hole (42) with the compression chamber (11)；
The diameter of the first through hole (41) is more than the diameter of second through hole (42), makes the first through hole (41) and described
The step surface (43) of circular ring shape is formed between second through hole (42),
The valve block (2) is arranged in the first through hole (41), and raised (44) are provided with the step surface (43), work as institute
State valve block (2) to the step surface (43) direction move when, it is described protrusion (44) can stop the valve block (2), to make
State and form gap between valve block (2) and the step surface (43).
14. the increasing enthalpy structure of compressor according to claim 13, it is characterised in that：
The quantity of the protrusion (44) is two or more, and circumferentially uniformly distributed on the step surface (43).
15. the increasing enthalpy structure of compressor according to claim 13, it is characterised in that：
When the valve block (2) sets notch (21), the minimum range of the protrusion (44) to the first through hole (41) axis
(e) it is less than the notch (21) to the minimum range (a) at the valve block (2) center.
16. the increasing enthalpy structure of compressor according to claim 13, it is characterised in that：
There are gap between the protrusion (44) and the inner wall of the first through hole (41).
17. the increasing enthalpy structure of compressor according to claim 16, it is characterised in that：
When the valve block (2) sets notch (21), the ultimate range of the protrusion (44) to the first through hole (41) axis
(f) it is less than or equal to the notch (21) to the minimum range (a) at the valve block (2) center.
A kind of 18. screw compressor, it is characterised in that：
Increasing enthalpy structure including the compressor described in any one in claim 1 to 17, the increasing enthalpy passage are arranged on described
On the fixed scroll of screw compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832893.5U CN207297378U (en) | 2017-07-10 | 2017-07-10 | The increasing enthalpy structure and screw compressor of compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832893.5U CN207297378U (en) | 2017-07-10 | 2017-07-10 | The increasing enthalpy structure and screw compressor of compressor |
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| Publication Number | Publication Date |
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| CN207297378U true CN207297378U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720832893.5U Expired - Fee Related CN207297378U (en) | 2017-07-10 | 2017-07-10 | The increasing enthalpy structure and screw compressor of compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288889A (en) * | 2017-07-10 | 2017-10-24 | 珠海格力节能环保制冷技术研究中心有限公司 | The increasing enthalpy structure and screw compressor of compressor |
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2017
- 2017-07-10 CN CN201720832893.5U patent/CN207297378U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288889A (en) * | 2017-07-10 | 2017-10-24 | 珠海格力节能环保制冷技术研究中心有限公司 | The increasing enthalpy structure and screw compressor of compressor |
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Granted publication date: 20180501 |