CN109779908A - The fluid ejection apparatus of flexible connection, screw compressor and air conditioner with the device - Google Patents
The fluid ejection apparatus of flexible connection, screw compressor and air conditioner with the device Download PDFInfo
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- CN109779908A CN109779908A CN201910127559.3A CN201910127559A CN109779908A CN 109779908 A CN109779908 A CN 109779908A CN 201910127559 A CN201910127559 A CN 201910127559A CN 109779908 A CN109779908 A CN 109779908A
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- ejection apparatus
- fluid ejection
- connecting pipe
- outer connecting
- inner connection
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Abstract
Screw compressor and air conditioner the invention discloses the fluid ejection apparatus of flexible connection, with the device, wherein the fluid ejection apparatus of the flexible connection includes: inner connection tube part, outer connecting pipe part.The inner connection tube part is connect with the outer connecting pipe part flexible sealing.The fluid ejection apparatus of the flexible connection is set to the present invention between the fixed scroll and shell of screw compressor, it can be achieved that space freely swings, and the reliability of seal for pipe joints connection is improved to adapt to the floating of fixed scroll.Fluid ejection apparatus structure is simple, the assembly precision of assembly fluid injection head structure associated cylinder part can be reduced, to reduce manufacturing cost.Refrigerant is injected directly into the compression chamber of compressor by fluid ejection apparatus, to reach the purpose for improving compressor operating efficiency and reducing delivery temperature.
Description
Technical field
The present invention relates to screw compressor technical field more particularly to a kind of flexible connection with compressor and can be to compression
Fluid ejection apparatus, the screw compressor and air conditioner with the device of chamber conveying refrigerant.
Background technique
Screw compressor is with structure is simple, small in size, light weight, noise is low, mechanical efficiency is high and the spies such as smooth running
Point.But when environment temperature is relatively low, refrigerant suction specific volume increases, and refrigerant mass fluxes reduce, and heating capacity is also corresponding
Decline, then the working efficiency of compressor decreases.In addition, to be down to zero degrees celsius or less, evaporating temperature too low for environment temperature
When, common refrigerated air-conditioning system will lead to scroll compressor compresses than increase for heating, then there is repeated compression phenomenon, from
And increase compressor exhaust temperature sharply, more than the working range that compressor allows, cause high frequent start-stop, system without
Method works normally, and will lead to compressor when serious and burns.In order to solve the compressor operating low efficiency and delivery temperature sharply
The problem of raising, common solution are low-temperature steam to be drawn from flash evaporation or economizer or by a part of condensator outlet
High temperature and pressure refrigerant liquid section stream becomes lower temperature gas-liquid two-phase fluid and is injected directly into the compression chamber of compressor, is mentioned with reaching
High compressor working efficiency and the purpose for reducing delivery temperature.
A kind of fluid ejection apparatus is disclosed in Chinese invention patent-screw compressor (ZL 201010615711.1), with
It reduces compressor exhaust temperature and improves working efficiency, as shown in Figure 1, the fluid ejection apparatus includes: the connection quiet whirlpool of compressor
The inscribed conduit component 10 of disk compression chamber, the external pipe component 9 being connected to compressor housing outside, by inscribed conduit component 10
The connecting component 8 being connected to external pipe component 9.Intermediate connector 20 is additionally provided with outside the shell of compressor to reinforce external pipe
The connection of component 9 and shell.The upper end of inscribed conduit component 10 is interior by being connected to fluid channel 11 with the compression chamber of fixed scroll
Connect conduit component 10 and connecting component 8 be arranged in compression case body and independently of support member except.But the fluid injection fills
Set is to be completed at the same time with the pump housing aligning of dynamic fixed scroll, therefore device assembly is relatively difficult when assembly.In addition, between each part
It is to rigidly fix connection, then fluid ejection apparatus can not follow fixed scroll to float and influence the reliability that seal for pipe joints connects.
Therefore, how to overcome the assembly difficulty of existing compressor refrigerant trandfer fluid injection apparatus, manufacturing cost high and
Can not adapt to the defect that quiet disk floats is industry urgent problem to be solved.
Summary of the invention
The present invention is high and can not adapt to quiet disk and float in order to solve existing fluid ejection apparatus assembly difficulty, manufacturing cost
The technical issues of, a kind of fluid ejection apparatus, screw compressor and sky with the device with compression chamber flexible connection is provided
Adjust device.Fluid ejection apparatus structure is simple, can reduce the assembly precision of assembly fluid injection head structure associated cylinder part, so that system
This reduction is caused, and is adapted to the floating of quiet snail disk.
A kind of fluid ejection apparatus provided by the invention, including inner connection tube part, outer connecting pipe part.The inner connection tube part
It is connect with the outer connecting pipe part flexible sealing.
One type technical solution is that the inner connection tube part and the outer connecting pipe part axially carry out the flexible sealing
Connection.
Preferably, the both ends of the inner connection tube part are respectively the ball head structure with sealing ring, which passes through
The ball head structure of one end is carried out the flexible sealing with the outer connecting pipe part and is connect.
Preferably, described inner connection tube part one end is the ball head structure with sealing ring and the other end is the pipe with sealing ring
Road structure, the inner connection tube part are carried out the flexible sealing with the outer connecting pipe part by the ball head structure of one end and are connect.
Preferably, the outer connecting pipe part includes connector and extension tube attached, one end of the connector and the interior connection
Pipe fitting carries out the flexible sealing connection, and the other end of the connector is connected to the extension tube attached.
Preferably, the connector and the extension tube attached are split production or integral production.
Another kind of technical solution is that the inner connection tube part and the outer connecting pipe part are bending pipe fitting.
Preferably, outer connecting pipe part one end is the ball head structure with sealing ring, which passes through the ball
Header structure is carried out the flexible sealing with the inner connection tube part and is connect.
Preferably, outer connecting pipe part one end is the pipe structure with sealing ring, which passes through the pipe knot
Structure is carried out the flexible sealing with the inner connection tube part and is connect.
Preferably, the inner connection tube part includes screw connection structure section and bending flexible connection section.
Preferably, the outer connecting pipe part includes connecting tube and bending extension tube attached, and the connecting pipe and the bending are soft
Property linkage section carry out flexible sealing connection.
Preferably, the connecting tube and the bending extension tube attached are split production or integral production.
The invention also provides a kind of screw compressors comprising the fluid ejection apparatus.
The invention proposes a kind of air conditioners comprising the screw compressor.
Since the present invention is provided with the fluid ejection apparatus of flexible connection between the fixed scroll and shell of screw compressor.
The fluid ejection apparatus can realize freely swinging for space, and the reliable of seal for pipe joints connection is improved to adapt to the floating of fixed scroll
Property.The flexibility that the configuration of the present invention is simple, space are swung is larger convenient for assembly, so that wanting for correlated parts assembly precision can be reduced
It asks, and lowers manufacturing cost.When screw compressor evaporating temperature is too low, which sprays into fixed scroll compression chamber
Enter the refrigerant vapor of relative low temperature, to reduce the delivery temperature of screw compressor, enhance the low-temperature heating ability of screw compressor,
To improve scroll compression engine efficiency；When screw compressor evaporating temperature is too low and condensation temperature is higher, the fluid ejection apparatus
The refrigerant liquid that relative low temperature is sprayed into fixed scroll compression chamber improves vortex to reduce the delivery temperature of screw compressor
Compressor is compared with the reliability under worst cold case.
Detailed description of the invention
Fig. 1 is the attached drawing 12 in Chinese invention patent-screw compressor (ZL 201010615711.1)；
Fig. 2 is the cross-sectional view of screw compressor first embodiment of the present invention；
Fig. 3 is the partial enlargement diagram in Fig. 2 at A；
Fig. 4 is the ball rod stereoscopic schematic diagram of fluid ejection apparatus embodiment one of the present invention；
Fig. 5 is the structural schematic diagram of the connector of fluid ejection apparatus embodiment one of the present invention；
Fig. 6 is the structural schematic diagram of fluid ejection apparatus embodiment one of the present invention；
Fig. 7 is the structural schematic diagram of the fixed scroll of screw compressor first embodiment of the present invention
Fig. 8 is the cross-sectional view of the fixed scroll of screw compressor first embodiment of the present invention；
Fig. 9 is the cross-sectional view of screw compressor second embodiment of the present invention；
Figure 10 is the stereoscopic schematic diagram of the connecting tube of fluid ejection apparatus embodiment two of the present invention；
Figure 11 is the stereoscopic schematic diagram of the bending connector of fluid ejection apparatus embodiment two of the present invention；
Figure 12 is the stereoscopic schematic diagram of fluid ejection apparatus embodiment two of the present invention, connecting tube and bending extension tube attached fission system
Make；
Figure 13 is the partial enlargement diagram in Fig. 9 at B；
Figure 14 is the cross-sectional view of the quiet disk of screw compressor second embodiment of the present invention；
Figure 15 is the stereoscopic schematic diagram of fluid ejection apparatus embodiment two of the present invention, one system of connecting tube and bending extension tube attached
Make；
Figure 16 is the stereoscopic schematic diagram of connecting tube and bending extension tube attached integral production structure in Figure 15；
Figure 17 connect for the fluid ejection apparatus of connecting tube and bending extension tube attached integral production with screw compressor partially schematic
Figure.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Fig. 2, the first of the screw compressor with flexible connection fluid ejection apparatus proposed by the present invention implements
Example, mainly by shell 7, motor stator 8, rotor 9, motor fixing frame 10, crankshaft 11, upper bracket 6, upper bracket support plate 4, quiet
The composition such as whirlpool disk 1, movable orbiting scroll 2, cross slip-ring 3.Motor stator 8 and rotor 9 are fixed on shell 7 by motor fixing frame 10,
Upper bracket 6 is fixed on shell 7 by interference fit and axial thrust.1 carrier phase shift 180 degree pair of movable orbiting scroll 2 and fixed scroll
It sets in the upper bracket support plate 4 for being mounted on upper bracket 6, movable orbiting scroll 2 is rotated by crankshaft 11, with 1 engaging of fixed scroll
At a series of mutually isolated and volume consecutive variations crescent closed containing cavities.Sealing cover 17 is mounted on the back side of fixed scroll 1, whirlpool
Revolve sealing cover 17 in compressor operation can axial floating and demarcation plate 18 form the exhaust passage of sealing.Fixed scroll 1 has
The work of axial elasticity, i.e. screw compressor can axially float up and down when just starting to work.But during the work time, sealing cover 17
Gas pressure is stablized in the middle pressure chamber formed with 1 back side of fixed scroll, then fixed scroll 1 is closely pressed on movable orbiting scroll 2 by axial force.Point
Partition 18 and upper cover 19 are fixed by welding on shell 7, and high pressure gas chamber is formed between demarcation plate 18 and upper cover 19.Work as vortex
When compressor operation, rotor 9 drives crankshaft 11 to rotate, and the crank section installation of crankshaft 11 has the eccentric bushing of radial compliance,
Eccentric bushing drives movable orbiting scroll 2 to move, and under the anti-rotation limitation of cross slip-ring 3, movable orbiting scroll 2 is around crankshaft center with fixed half
Diameter does translational motion.The crescent suction chamber that the refrigerant entered outside screw compressor is inhaled into movable orbiting scroll 2 and fixed scroll 1 is formed
It is interior, entered in the high pressure chest that upper cover 19 is formed with demarcation plate 18 by 1 gas vent of fixed scroll after compression, the row then through upper cover 19
Tracheae discharge.
In the first embodiment of screw compressor, as shown in Figure 7, Figure 8, fluid spray is provided on 1 lateral trimming of fixed scroll
Perforation 1b.Fluid injection orifice 1b is made up of the injection channel 1d and blind hole 1c that are set on 1 ontology of fixed scroll and dynamic and static whirlpool disk
Compression chamber conducting.It is provided by the invention a kind of defeated for the compression chamber to screw compressor incorporated by reference to Fig. 3, Fig. 4, Fig. 5, Fig. 6
Send the fluid ejection apparatus 16 of refrigerant comprising inner connection tube part, outer connecting pipe part.And inner connection tube part and outer connecting pipe part are soft
Property be tightly connected.16 embodiment one of fluid ejection apparatus of the present invention, inner connection tube part are arranged to the ball rod that both ends have bulb
16b carries out axial flexible sealing with outer connecting pipe part and connect.That is the both ends of ball rod 16b are respectively equipped with band sealing ring 16a
Ball head structure, ball rod 16b connect by the ball head structure of one end with one end of outer connecting pipe part implementation flexible sealing.
Outer connecting pipe part includes connector 16c and the extension tube attached 16d that axially connect with the connector.That is the bulb of the one end ball rod 16b
After structure is inserted into the inner hole 16cb of the one end connector 16c, realize that axial elasticity is tightly connected, and the other end of connector 16c
16cd is connected to extension tube attached 16d.In the present embodiment, connector 16c and extension tube attached 16d split production, then soldering is integral.Root
According to needing connector 16c and extension tube attached 16d that can also machine integral production.Extension tube attached 16d can choose copper material or steel system
Make.The ball head structure of the ball rod 16b other end is inserted directly into the spray-hole 1b of fixed scroll 1 to carry out flexible sealing connection.And
The extension tube attached 16d of outer connecting pipe part is fixedly connected with the soldering of the shell 7 of screw compressor, so that the fluid ejection apparatus 16 is laterally
It is connected in the fixed scroll 1 and shell 7 of screw compressor.Since the both ends of ball rod 16b are respectively ball head structure, and bulb knot
It is provided with annular groove on structure and is provided with elastic seal ring 16a.The stream of fixed scroll 1 is first inserted into one end of ball rod 16b when installation
In body spray-hole 1b, and in the inner hole 16cb of the other end of ball rod 16b insertion one end connector 16c, so that ball rod 16b points
Sealing flexible connection-bulb is not carried out with the inner hole 16cb of the fluid injection orifice 1b of fixed scroll 1, connector 16c to connect.According to
It needs, inner connection tube part can be equipped with the ball head structure with sealing ring and the other end with one end and be equipped with the pipeline knot with sealing ring
Structure.The inner connection tube part carries out sealing flexible connection by the ball head structure and outer connecting pipe part of one end, and another by its
The fluid injection orifice 1b of the fixed scroll 1 of pipeline configuration of the end with sealing ring and screw compressor carries out the sealing being axially movable and connects
It connects.
When 16 embodiment one of fluid ejection apparatus is assembled with screw compressor first embodiment, such as Fig. 2 ~ Fig. 8 institute
Show, after the installation aligning fastening of dynamic and static whirlpool dish pumping body, fixed scroll 1 is first inserted into the left end of 16 ball rod 16b of fluid ejection apparatus
Fluid injection orifice 1b in, then the right end of ball rod 16b is directed at insertion with the inner hole 16cb of the left end connector 16c, finally will
Extension tube attached 16d is fixedly connected with the hole on shell 7 by soldering.Because quiet disk is workpiece, then ball rod 16b and connector
The connection of 16c, should not be using the rigid connection of welding using flexible connection.The ball rod being connected in this way with fluid injection orifice 1b
16b, connector 16c, extension tube attached 16d form complete sealing injection channel.When screw compressor works, what is be introduced from outside into is low
Warm refrigerant is sprayed into finally by the fluid injection mouth 1b of fixed scroll 1 by quiet by extension tube attached 16d, connector 16c, ball rod 16b
In the compression chamber that whirlpool disk 1 and movable orbiting scroll 2 are formed, to reach the purpose of cooling.Due to fluid injection mouth 1b, the bulb of fixed scroll 1
Bar 16b and connector 16c three be it is interconnected by the ball head structure with sealing ring 16a, when work, ensure that gas
Except the leakproofness of body, can also be achieved move axially relatively and rotating around X, Y, Z axis swing, move flexible range very
Extensively.The flexible connection that such ball head structure is carried out follows fluid ejection apparatus 16 of the invention and adapts to fixed scroll 1
It floats, and guarantees the reliability of seal for pipe joints connection.
As shown in figure 9, second for the screw compressor with flexible connection fluid ejection apparatus proposed by the present invention is real
Apply example.The structure of the embodiment and the first embodiment of screw compressor is essentially identical, and main difference is fluid ejection apparatus.
As shown in Figure 12 and Figure 13,20 embodiment two of fluid ejection apparatus of the present invention, inner connection tube part and outer connecting pipe interconnected
Part is bending pipe fitting.In the present embodiment, inner connection tube part is bending connector 20a, as shown in figure 11 comprising with fixed scroll 1
The screw connection structure section 20ad of connection and bending are flexibly connected section 20ae.In the connecting pin of the screw connection structure section 20ad
Between be spray hole 20ab, the two sides spray hole 20ab are additionally provided with screw hole 20aa.As shown in Figure 10, Figure 12, the outer connecting pipe
Part includes that connecting tube 20b and bending extension tube attached 20c, the connecting tube 20b and bending flexible connection section 20ae carry out flexibility
It is tightly connected.Specific structure is that the one end the connecting tube 20b is the pipe structure with sealing ring 20d, which passes through band elasticity
The pipe structure of sealing ring 20d is carried out flexible sealing with the bending of inner connection tube part flexible connection section 20ae and is connect.As needed, outside
One end connecting tube 20b of connecting pipe can also be set as the ball head structure with elastic seal ring, which passes through the ball
Header structure is carried out the flexible sealing with the bending of inner connection tube part flexible connection section 20ae and is connect.The connecting tube of outer connecting pipe part
20b and bending extension tube attached 20c can be brazed again integrally with split production, can also be formed with integral production, such as Figure 15, Figure 16 and figure
Shown in 17.
1 lateral trimming of fixed scroll such as Figure 13, shown in Figure 14, and incorporated by reference to Fig. 8, in the second embodiment of screw compressor
In be provided with fluid injection orifice 1b, two sides are equipped with threaded hole 1a corresponding with the screw hole 20aa on bending connector 20a.Fluid spray
Perforation 1b is connected by the injection channel 1d and blind hole 1c being set on 1 ontology of fixed scroll with the compression chamber that dynamic and static whirlpool disk is constituted.
In the assembling process of 20 embodiment two of fluid ejection apparatus and the second embodiment of screw compressor, such as Fig. 9 ~ figure
Shown in 14, first one end of bending extension tube attached 20c and the horizontal interface 20ba soldering connection of the lower end connecting tube 20b are cooperatively formed
The channel of sealing covers elastic seal ring 20d in the sealed groove of the upper end connecting tube 20b.To movable orbiting scroll 2,1 pump housing of fixed scroll
After aligning fastening, bending connector 20a is fixed in the side trimming of fixed scroll 1, i.e., by the spray of screw connection structure section 20ad
Fluid apertures 20ab is aligned with the fluid injection orifice 1b in 1 side trimming of fixed scroll, then bending connector 20a is fixed on quiet whirlpool with screw
On disk 1.Then again that one end equipped with the connecting tube 20b of elastic seal ring 20d is (or close equipped with elasticity by connecting tube 20b
One end of the ball head structure of seal) with the bending of bending connector 20a flexible connection section 20ae longitudinal interface 20ac be directed at insertion, i.e.,
Form complete injection sealed passage.Because quiet snail disk is workpiece, then connecting tube 20b and bending connector 20a is using flexible
Connection, should not be using the rigid connection of welding.Finally bending extension tube attached 20c is fixedly connected with the hole soldering on shell 7.
The invention proposes a kind of air conditioners comprising the screw compressor.
When screw compressor works, the spray hole 20ab on fluid injection orifice 1b and bending connector 20a in fixed scroll 1,
Connecting tube 20b, bending extension tube attached 20c form complete sealing injection channel, so that the cryogenic liquid being introduced from outside into is ejected into
In the compression chamber that dynamic and static whirlpool disk is constituted, reach the purpose of cooling.Since one end of connecting tube 20b and bending connector 20a composition are soft
Property be tightly connected, when work, ensure that except the leakproofness of gas, can also be achieved and moves axially relatively and certain pendulum
It is dynamic, it is very wide to move flexible range.But also fluid ejection apparatus 20 of the invention can follow the floating for adapting to fixed scroll 1, and
Guarantee the reliability and the integrally-built integrality of compressor of seal for pipe joints connection.
Above-described embodiment is merely to illustrate a specific embodiment of the invention.It should be pointed out that for the general of this field
For logical technical staff, without departing from the inventive concept of the premise, several deformations and variation can also be made, these deformations and
Variation all should belong to protection scope of the present invention.
Claims (14)
1. a kind of fluid ejection apparatus, including inner connection tube part, outer connecting pipe part, which is characterized in that the inner connection tube part with
The outer connecting pipe part flexible sealing connection.
2. fluid ejection apparatus as described in claim 1, which is characterized in that the inner connection tube part and the outer connecting pipe part
It is axial to carry out the flexible sealing connection.
3. fluid ejection apparatus as claimed in claim 2, which is characterized in that the both ends of the inner connection tube part are respectively with close
The ball head structure of seal, the inner connection tube part carry out the flexibility by the ball head structure of one end and the outer connecting pipe part
It is tightly connected.
4. fluid ejection apparatus as claimed in claim 2, which is characterized in that inner connection tube part one end is with sealing ring
Ball head structure and the other end are the pipeline configuration with sealing ring, which passes through the ball head structure of one end and described outer
Connecting pipe carries out the flexible sealing connection.
5. fluid ejection apparatus as claimed in claim 2, which is characterized in that the outer connecting pipe part includes connector and external
Pipe, one end of the connector are carried out the flexible sealing with the inner connection tube part and are connect, the other end of the connector
It is connected to the extension tube attached.
6. fluid ejection apparatus as claimed in claim 5, which is characterized in that the connector and the extension tube attached are made to be seperated
Work or integral production.
7. fluid ejection apparatus as described in claim 1, which is characterized in that the inner connection tube part and the outer connecting pipe part
For bending pipe fitting.
8. fluid ejection apparatus as claimed in claim 7, which is characterized in that outer connecting pipe part one end is with sealing ring
Ball head structure, the outer connecting pipe part are carried out the flexible sealing with the inner connection tube part by the ball head structure and are connect.
9. fluid ejection apparatus as claimed in claim 7, which is characterized in that outer connecting pipe part one end is with sealing ring
Pipe structure, the outer connecting pipe part are carried out the flexible sealing with the inner connection tube part by the pipe structure and are connect.
10. fluid ejection apparatus as claimed in claim 7, which is characterized in that the inner connection tube part includes being threadedly coupled knot
Structure section and bending are flexibly connected section.
11. fluid ejection apparatus as claimed in claim 10, which is characterized in that the outer connecting pipe part includes connecting tube and folding
Curved extension tube attached, the connecting tube are carried out the flexible sealing with bending flexible connection section and are connect.
12. fluid ejection apparatus as claimed in claim 11, which is characterized in that the connecting tube and the bending extension tube attached are
Split production or integral production.
13. a kind of screw compressor, which is characterized in that including the described in any item fluid ejection apparatus of such as claim 1 ~ 12.
14. a kind of air conditioner, which is characterized in that including screw compressor as claimed in claim 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127559.3A CN109779908A (en) | 2019-02-20 | 2019-02-20 | The fluid ejection apparatus of flexible connection, screw compressor and air conditioner with the device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910127559.3A CN109779908A (en) | 2019-02-20 | 2019-02-20 | The fluid ejection apparatus of flexible connection, screw compressor and air conditioner with the device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109779908A true CN109779908A (en) | 2019-05-21 |
Family
ID=66504709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910127559.3A Pending CN109779908A (en) | 2019-02-20 | 2019-02-20 | The fluid ejection apparatus of flexible connection, screw compressor and air conditioner with the device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109779908A (en) |
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Application publication date: 20190521 |
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| RJ01 | Rejection of invention patent application after publication |