CN202280620U - Rotary compressor with enhanced vapor injection (EVI) function - Google Patents
Rotary compressor with enhanced vapor injection (EVI) function Download PDFInfo
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- CN202280620U CN202280620U CN2011203447042U CN201120344704U CN202280620U CN 202280620 U CN202280620 U CN 202280620U CN 2011203447042 U CN2011203447042 U CN 2011203447042U CN 201120344704 U CN201120344704 U CN 201120344704U CN 202280620 U CN202280620 U CN 202280620U
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Abstract
The utility model discloses a rotary compressor with an enhanced vapor injection (EVI) function. The rotary compressor comprises a housing, a motor, a crank shaft, a roller, a slip sheet and a cylinder body component, wherein the cylinder body component comprises an upper flange, a lower flange and a cylinder; the upper flange and the lower flange are arranged at two ends of the cylinder and are combined with the two ends of the cylinder to form a sealed cylinder cavity; the slip sheet assembled on the cylinder is propped against the outer edge of the roller and divides the sealed cylinder cavity into two working cavities; a suction hole is formed on the cavity wall of the cylinder body component; an injection gas passage communicated with the sealed cylinder cavity is formed on the upper flange, the lower flange and the cylinder; the injection orifice of the injection gas passage is formed on the inside wall of the upper flange or the inside wall of the lower flange; an axial injection gas passage communicated with injection gas passages beside the walls of the upper and the lower flanges is formed on the cavity wall of the cylinder in the axial direction; a plunger hole communicated with the sealed cylinder cavity and the axial injection gas passage is formed on the cavity wall of the cylinder in the radial direction; and a plunger piston, which is in slide fit with the plunger hole and can control the opening and the closing of the injection gas passage, is mounted in the plunger hole.
Description
[technical field]
The utility model relates to rotary compressor, relates in particular to the rotary compressor with air injection enthalpy-increasing function.
[background technique]
Common rotary compressor is made up of major parts such as shell, motor, bent axle, cylinder, roller, slide plate, upper flange, lower flanges.On cylinder, offer intakeport and relief opening, assembling rear cylinder upper/lower terminal has constituted the sealing cylinder chamber of compressor by upper and lower flange seal; Roller is arranged in the cylinder chamber, and is contained on the eccentric crankshaft by driven by motor, and roller rolls along cylinder inner wall; Form a meniscate active chamber with cylinder; Slide plate leans on the active force of spring that its end is closely contacted with roller, and the crescent shape active chamber is divided into two-part, and its volume size is along with the corner of roller changes; The pressure of gas then changes along with the size of volume in the volume, thereby accomplishes the working procedure of compressor.
In order to reach higher heating capacity, the air supply that increases in the cylinder chamber is very important.This just needs an ability reclaiming system waste heat and supplies with the air jet system that compression chamber carries out loop compression.At present; Controlling method commonly used is, offers one or more fumaroles on upper bearing (metal) in rotary compressor (upper flange) or the lower bearing (lower flange), cooperates with a pipeline through one or more fumaroles; Make that cylinder of compressor can be through said fumarole and pipeline and compressor external communications; The fumarole place is provided with an one-way valve, make external fluid to get into cylinder chamber through said pipeline and fumarole, and the fluid of cylinder chamber can not be discharged through said fumarole and pipeline; What this fumarole place was provided be one-way valve, and disclosed one-way valve is the form that steel ball cooperates circular hole, and its one-way valve does not have the control mechanism of special use, can only be controlled voluntarily by jet gas, and its structure and control mode are simple, poor reliability.
The applicant discloses denomination of invention for No. 200810175178.4 at Chinese patent and has been " rotary compressor with air jet system "; The vapour injecton arrangement that adopts is through the form of piston control jet gas path on-off; And and then the special mechanism of control piston motion is provided; Through corresponding pipeline and control valve are set, utilize the driving force of suitable air pressure as piston motion, be implemented in and increase enthalpy or do not increase the switching between the break.But the special mechanism complex structure of control piston motion, component are many, inconvenience that installation connects and manufacturing is got up; Heavier is this control structure, in increasing the enthalpy process, cause easily cylinder air-breathing with the compression work chamber in high low pressure gas collaborate, the suck-back phenomenon takes place, cause volume of cylinder efficient lower, influence compressor performance.
[model utility content]
The utility model provides a kind of simple in structure, convenient processing and manufacture, solves jet suck-back phenomenon, improves the rotary compressor of air injection enthalpy-increasing effect.
In order to realize the foregoing invention purpose, the technological scheme that the utility model adopts is:
A kind of rotary compressor with air injection enthalpy-increasing function; Comprise shell, motor, bent axle, roller, slide plate and housing assembly; Housing assembly is made up of upper flange, lower flange and cylinder; Roller on the bent axle is assemblied in the cylinder, and upper flange, lower flange are arranged on the cylinder two ends and are encircled into the sealing cylinder chamber, is assemblied in the slide plate on the cylinder and the roller outer rim is inconsistent and two active chambers divide are made in the sealing cylinder chamber; The chamber wall of housing assembly is provided with suction port, and the roller of rotation and slide plate be the suction port on the closed cylinder periodically; Offer the jet gas passage that connects with the sealing cylinder chamber on said upper flange, lower flange and the cylinder, the jetburner of jet gas passage is opened on the upper flange madial wall or lower flange madial wall in sealing cylinder chamber outside active chamber is closed under the suction port; The cylinder chamber wall is axially offered the axial jet gas passage of the wall side jet gas passage of a connection upper flange and lower flange; Cylinder chamber wall between jetburner and suction port is radially offered the communication seals cylinder chamber and is connected the plunger hole of axial jet gas passage; Be equipped with in the plunger hole and be slidingly matched with it and the plunger of may command jet gas passage break-make, the top that said plunger utilizes the outer high pressure refrigerant of cylinder to be pressed in cylinder outer wall place and plunger is stretched in the sealing cylinder chamber of cylinder and can be touched mutually with the outer rim of roller.
Said plunger is provided with the positioning table that touches with cylinder outer wall.
Offer the circular groove or the through hole that are communicated with the jet gas passage on the said plunger.
The jetburner of said jet gas passage is opened on the lower flange madial wall in sealing cylinder chamber outside active chamber is closed under the suction port, offers the wall side jet gas passage that links to each other with the injection refrigerant pipeline that imports on the corresponding upper flange madial wall.
The jetburner of said jet gas passage is opened on the upper flange madial wall in sealing cylinder chamber outside active chamber is closed under the suction port, offers the wall side jet gas passage that links to each other with the injection refrigerant pipeline that imports on the corresponding lower flange madial wall.
The beneficial effect of the utility model is:
The utility model increases the plunger of a suitable size in the suitable angular position of the pump housing, has circular groove on the plunger, can communicate with the jet gas passage.The jet gas passage is drawn out to the compressor outside in pump housing cylinder, the open and close of jetburner is to realize through the plunger that increases; When roller moves; Plunger promotes the plunger operation under the effect of the promotion of roller and compressor internal pressure; When active chamber is closed under the suction port on the cylinder assembly; Roller promotes the plunger outward motion, through circular groove on the plunger or through hole conducting jet gas passage, to cylinder working chamber injection increasing enthalpy; When suction port was opened, roller turns over stepped down, and plunger utilizes the outer internal pressure effect of compresser cylinder; Promoting plunger is pressed in outside the cylinder wall; Circular groove on the plunger or through hole displacement, plunger seals the jet gas passage automatically, reaches the effect according to the operation cycle of compressor adaptive opening and closing jet gas passage through plunger; Effectively avoid high low pressure to collaborate; Form the effect of pressing the chamber in virtual, effectively solve when spraying air-breathing influence, that improves that rotation increases the enthalpy compressor increases the enthalpy effect.
[description of drawings]
Fig. 1 is the structural representation that the utility model jet gas passage begins to open;
Fig. 2 is the structural representation of the utility model jet gas passage complete opening;
Fig. 3 is the structural representation that the utility model jet gas passage begins to close;
Fig. 4 is the structural representation that the utility model jet gas passage is closed fully;
Fig. 5 is the sectional structure schematic representation of the utility model housing assembly and roller.
[embodiment]
Extremely shown in Figure 5 like Fig. 1; A kind of rotary compressor with air injection enthalpy-increasing function; Comprise shell (not shown), motor (not shown), bent axle 1, roller 2, slide plate 3 and housing assembly 4, housing assembly 4 is made up of upper flange 40, lower flange 41 and cylinder 42, and the roller 2 on the bent axle 1 is assemblied in the cylinder 42; Upper flange 40, lower flange 41 are arranged on cylinder 42 two ends and are encircled into sealing cylinder chamber 5; It is inconsistent and the sealing cylinder chamber divided make two active chambers with roller 2 outer rims to be assemblied in slide plate 3 on the cylinder 42, and the chamber wall of housing assembly 4 is provided with suction port 43, and the roller 2 of rotation and slide plate 3 be the suction port 43 on the closed cylinder periodically; Offer the jet gas passage 6 that connects with sealing cylinder chamber 5 on said upper flange 40, lower flange 41 and the cylinder 42, the jetburner 60 of jet gas passage 6 is opened on the lower flange madial wall in sealing cylinder chamber 5 outside active chamber is closed under the suction port; Cylinder 42 chamber walls are axially offered the axial jet gas passage 62 of the wall side jet gas passage 61 of a connection upper flange 40 and lower flange 41; Cylinder 42 chamber walls between jetburner 60 and suction port 43 are radially offered communication seals cylinder chamber 5 and are connected the plunger hole 7 of axial jet gas passage 62; Be equipped with in the plunger hole 7 and be slidingly matched with it and the plunger 8 of may command jet gas passage 6 break-makes, the top that said plunger 8 utilizes cylinder 42 outer high pressure refrigerants to be pressed in cylinder 42 outer wall places and plunger 8 is stretched in the sealing cylinder chamber 5 of cylinder 42 and can be touched mutually with the outer rim of roller 2.
Continuation to shown in Figure 5, is provided with the positioning table 80 that touches with cylinder outer wall like Fig. 1 on plunger 8, offer the circular groove 81 of connection shaft to jet gas passage 62 on the plunger 8.
The jetburner 60 of jet gas passage 6 is opened on the lower flange madial wall, offers the wall side jet gas passage 61 that links to each other with the injection refrigerant pipeline that imports on corresponding upper flange 40 madial walls.
During this practical work; Plunger 8 promotes plunger 8 operations under the effect of the promotion of roller 2 and compressor case internal pressure; When active chamber is closed under the suction port on the cylinder assembly 4 43; Roller 2 promotes plunger 8 and outwards moves, through the axial jet gas passage 62 of the circular groove conducting jet gas passage 6 on the plunger 8, to cylinder 42 active chambers injection increasing enthalpy; When suction port 43 was opened, roller 2 turns over stepped down, and plunger 8 utilizes the internal pressure effect outside the compresser cylinder 42; Promoting plunger 8 is pressed in outside cylinder 42 walls; Circular groove 81 displacements on the plunger 8, plunger 8 is sealing jet gas passage 6 automatically, reaches the effect according to the operation cycle of compressor adaptive opening and closing jet gas passage 6 through plunger 8; Effectively avoid high low pressure to collaborate, form virtual middle effect of pressing the chamber.
The above embodiment just is the preferred embodiment of the utility model, is not the practical range that limits the utility model with this, and the equivalence that all shapes according to the utility model, structure and principle are done changes, and all should be covered by in the protection domain of the utility model.
Claims (5)
1. rotary compressor with air injection enthalpy-increasing function; Comprise shell, motor, bent axle, roller, slide plate and housing assembly; Housing assembly is made up of upper flange, lower flange and cylinder; Roller on the bent axle is assemblied in the cylinder, and upper flange, lower flange are arranged on the cylinder two ends and are encircled into the sealing cylinder chamber, is assemblied in the slide plate on the cylinder and the roller outer rim is inconsistent and two active chambers divide are made in the sealing cylinder chamber; The chamber wall of housing assembly is provided with suction port, and the roller of rotation and slide plate be the suction port on the closed cylinder periodically; It is characterized in that,
Offer the jet gas passage that connects with the sealing cylinder chamber on said upper flange, lower flange and the cylinder, the jetburner of jet gas passage is opened on the upper flange madial wall or lower flange madial wall in sealing cylinder chamber outside active chamber is closed under the suction port;
The cylinder chamber wall is axially offered the axial jet gas passage of the wall side jet gas passage of a connection upper flange and lower flange; Cylinder chamber wall between jetburner and suction port is radially offered the communication seals cylinder chamber and is connected the plunger hole of axial jet gas passage; Be equipped with in the plunger hole and be slidingly matched with it and the plunger of may command jet gas passage break-make, the top that said plunger utilizes the outer high pressure refrigerant of cylinder to be pressed in cylinder outer wall place and plunger is stretched in the sealing cylinder chamber of cylinder and can be touched mutually with the outer rim of roller.
2. according to the said rotary compressor of claim 1, it is characterized in that said plunger is provided with the positioning table that touches with cylinder outer wall with air injection enthalpy-increasing function.
3. according to the said rotary compressor of claim 1, it is characterized in that, offer the circular groove or the through hole that are communicated with the jet gas passage on the said plunger with air injection enthalpy-increasing function.
4. according to the said rotary compressor of claim 1 with air injection enthalpy-increasing function; It is characterized in that; The jetburner of said jet gas passage is opened on the lower flange madial wall in sealing cylinder chamber outside active chamber is closed under the suction port, offers the wall side jet gas passage that links to each other with the injection refrigerant pipeline that imports on the corresponding upper flange madial wall.
5. according to the said rotary compressor of claim 1 with air injection enthalpy-increasing function; It is characterized in that; The jetburner of said jet gas passage is opened on the upper flange madial wall in sealing cylinder chamber outside active chamber is closed under the suction port, offers the wall side jet gas passage that links to each other with the injection refrigerant pipeline that imports on the corresponding lower flange madial wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203447042U CN202280620U (en) | 2011-09-14 | 2011-09-14 | Rotary compressor with enhanced vapor injection (EVI) function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203447042U CN202280620U (en) | 2011-09-14 | 2011-09-14 | Rotary compressor with enhanced vapor injection (EVI) function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280620U true CN202280620U (en) | 2012-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203447042U Expired - Lifetime CN202280620U (en) | 2011-09-14 | 2011-09-14 | Rotary compressor with enhanced vapor injection (EVI) function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280620U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256222A (en) * | 2013-04-27 | 2013-08-21 | 陈璇 | Entropy-increasing rotary compressor with moveable injection orifice |
| CN103511259A (en) * | 2013-03-04 | 2014-01-15 | 广东美芝制冷设备有限公司 | Rotary compressor and air injection device thereof |
| CN112324508A (en) * | 2020-11-13 | 2021-02-05 | 珠海格力电器股份有限公司 | Expander and air conditioner |
-
2011
- 2011-09-14 CN CN2011203447042U patent/CN202280620U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103511259A (en) * | 2013-03-04 | 2014-01-15 | 广东美芝制冷设备有限公司 | Rotary compressor and air injection device thereof |
| CN103511259B (en) * | 2013-03-04 | 2015-12-02 | 广东美芝制冷设备有限公司 | Rotary compressor and air jet system thereof |
| CN103256222A (en) * | 2013-04-27 | 2013-08-21 | 陈璇 | Entropy-increasing rotary compressor with moveable injection orifice |
| CN112324508A (en) * | 2020-11-13 | 2021-02-05 | 珠海格力电器股份有限公司 | Expander and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |