CN102705237A - Structure and method for adjusting volume of medium-pressure cavity of two-stage compressor - Google Patents
Structure and method for adjusting volume of medium-pressure cavity of two-stage compressor Download PDFInfo
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- CN102705237A CN102705237A CN2012101295970A CN201210129597A CN102705237A CN 102705237 A CN102705237 A CN 102705237A CN 2012101295970 A CN2012101295970 A CN 2012101295970A CN 201210129597 A CN201210129597 A CN 201210129597A CN 102705237 A CN102705237 A CN 102705237A
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- 238000000034 method Methods 0.000 title claims description 7
- 230000006835 compression Effects 0.000 claims abstract description 45
- 238000007906 compression Methods 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 150000001875 compounds Chemical class 0.000 claims description 37
- 238000003825 pressing Methods 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 5
- 238000005057 refrigeration Methods 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The invention provides a structure for adjusting the volume of a medium-pressure cavity of a two-stage compressor, which comprises a first-stage compression unit and a second-stage compression unit, wherein a low-pressure cavity is arranged in the first-stage compression unit, a high-pressure cavity is arranged in the second-stage compression unit, a medium-pressure cavity is arranged between the first-stage compression unit and the second-stage compression unit, and the medium-pressure cavity is connected with a medium-pressure adjusting cavity through a control valve. When the double-stage compressor is in a refrigerating state, the control valve is opened, and the middle adjusting cavity is communicated with the medium-pressure cavity; when the double-stage compressor is in a heating state, the control valve is closed, and the middle adjusting cavity is disconnected with the middle pressure cavity. The two-stage compressor disclosed by the invention has the advantages that the pressure cavity is connected with the middle adjusting cavity, and the on-off of the pressure cavity and the middle adjusting cavity are automatically controlled through the control valve, so that the compressor has good refrigerating and heating performances.
Description
Technical field
The present invention relates to the Compressor Technology field, a kind of specifically structure and method thereof of pressing the chamber volume size in the compound compressor of regulating.
Background technique
At present; The structure of compound compressor is as shown in Figure 1; It comprises two compression units: one-level compression unit 10 and secondary compression unit 20; Establish low pressure chamber 11 in the one-level compression unit 10, establish hyperbaric chamber 21 in the secondary compression unit, between one-level compression unit 10 and secondary compression unit 20, be provided with and press chamber 30 in one.Wherein, the size of the volume in middle pressure chamber 30 is one of key factors that influence compressor cooling and heating performance.As the middle pressure chamber 30 of using big volume, compressor is pressed the pressure and temperature of the refrigerant gas in chamber 30 too about-face can not occur from injection channel 40 gets into, and is made compressor have good refrigeration performance when refrigeration; But compressor is when heating, and also because the middle pressure chamber 30 of having used big volume, after causing spraying the gas that increases enthalpy and pressing chamber 30 in getting into, it is not obvious that its pressure and temperature rise, and makes the heating performance reduction of compressor.As the middle pressure chamber 30 of using little volume, otherwise then, compressor has good heating performance and causes refrigeration performance to reduce.
At present, press the chamber during the compound compressor on the market is employed, its volume all is fixing uncontrollable; Thereby, make compressor can not take into account good refrigeration and the performance that heats.Wherein, The patent No. is that No. 201020116796.4 Chinese patents disclose a kind of two-stage rotor-type compressor with by-pass structure; The middle pressure chamber of this compressor is connected with hyperbaric chamber through one-way valve mechanism, avoids the pressure phenomenon of blade backpressure less than secondary air aspiration cavity or secondary exhaust cavity with this, thereby better guarantees blade stable operation; Improve the reliability of compressor, reduce noise etc.In this technological scheme, middle pressure chamber and one-way valve mechanism between hyperbaric chamber is connected be according in press chamber and the pressure in the hyperbaric chamber to open automatically, make the secondary compression unit be in idling conditions with this, and improve the stability that two grade blades move; Thereby the volume size in middle pressure chamber still can be according to compressor in refrigeration or heat the required of state and change; Simultaneously, hyperbaric chamber is pressed the chamber of chamber volume size as the working cell of secondary compression unit in can't only being applied to change; Therefore, even this structure is done further improvement, also can't make compressor have good refrigeration and heating performance concurrently.Therefore, for the technician of industry, pressing the chamber can be according to the running state of compressor in how making, and change the size of its volume automatically, make compressor have good refrigeration and heating performance concurrently, be a technical problem that needs to be resolved hurrily.
Summary of the invention
To the deficiency and the defective of above existing technology, the object of the present invention is to provide a kind of structure of pressing the chamber volume size in the compound compressor of regulating.
Another object of the present invention is to provide a kind of method of pressing the chamber volume size in the compound compressor of regulating.
The objective of the invention is through adopting following technological scheme to realize:
A kind of structure of pressing the chamber volume size in the compound compressor of regulating; Comprise one-level compression unit and secondary compression unit; Establish low pressure chamber in the one-level compression unit; Establish hyperbaric chamber in the secondary compression unit, between one-level compression unit and secondary compression unit, be provided with and press the chamber in one, the said middle chamber of pressing is connected with the intermediate regulations chamber through control valve.
As optimal technical scheme of the present invention, said intermediate regulations chamber be located at be communicated with middle pressure chamber injection channel on.
As optimal technical scheme of the present invention, said control valve is a solenoid valve, itself and four-way valve connection in parallel.
A kind of method of pressing the chamber volume size in the compound compressor of regulating; Comprise one-level compression unit and secondary compression unit; Establish low pressure chamber in the one-level compression unit, establish hyperbaric chamber in the secondary compression unit, between one-level compression unit and secondary compression unit, be provided with and press the chamber in one; Through control valve should in press the chamber to be connected with the intermediate regulations chamber, through opening or close the volume in this control valve change pressure chamber in this; When said compound compressor is in refrigerating state, open this control valve, this intermediate regulations chamber is communicated with this middle chamber of pressing; Said compound compressor is in when heating state, closes this control valve, this intermediate regulations chamber with should in press the chamber to break off.
As optimal technical scheme of the present invention, said intermediate regulations chamber be located at be communicated with middle pressure chamber injection channel on.
As optimal technical scheme of the present invention, the volume size in said intermediate regulations chamber can be adjusted according to the refrigerating capacity of this compound compressor.
As optimal technical scheme of the present invention, said control valve is a solenoid valve, and itself and four-way valve connection in parallel are by the same electrical signal control of this four-way valve of control.
Compared with prior art, the compound compressor that the present invention disclosed is wherein pressed the chamber to be connected with the intermediate regulations chamber, and is controlled both break-makes automatically through control valve.When compound compressor was in refrigerating state, refrigerant gas had big storage space, so the temperature of refrigerant gas bigger rising can not occur, was beneficial to compressor cooling; Compound compressor is in when heating state, increases enthalpy gas and can only get into the less middle pressure chamber of volume, causes increasing enthalpy gas and is compressed, and temperature rises, and is beneficial to compressor and heats.Therefore, adopt this kind structure, make compressor have good refrigeration and heating performance concurrently.
Description of drawings
Fig. 1 is the generalized section of compound compressor in the known technology.
Fig. 2 regulates the generalized section of pressing the structure of chamber volume size in the compound compressor for the present invention is a kind of.
Fig. 3 is the structural representation of compound compressor system among the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is described further:
See also Fig. 2 and Fig. 3, be respectively a kind of generalized section of the structure of pressing the chamber volume size in the compound compressor and structural representation of this compound compressor system regulated of the present invention.
Regulate and comprise one-level compression unit 102 and secondary compression unit 103 in the compound compressor 101; Establish low pressure chamber 104 in the one-level compression unit 102, establish hyperbaric chamber 105 in the secondary compression unit 103, between one-level compression unit 102 and secondary compression unit 103, be provided with and press chamber 106 in one, press chamber 106 to be connected in this with intermediate regulations chamber 109.The volume size in this intermediate regulations chamber 109 can be adjusted according to the refrigerating capacity of this compound compressor, and for example: refrigerating capacity is that the capacity in 5000W, middle pressure chamber 106 is the compound compressor of 16CC, and configurable volume is the intermediate regulations chamber 109 of 30CC; Refrigerating capacity is that the capacity in 7000W, middle pressure chamber 106 is the compound compressor of 16CC, and configurable volume is the intermediate regulations chamber 109 of 35CC.
This intermediate regulations chamber 109 is connected on the injection channel 107; It is provided with control valve with the passage that injection channel 107 is connected; Said control valve is a solenoid valve 108, and the intrasystem four-way valve of this solenoid valve 108 and compound compressor 110 is parallelly connected, by the same electrical signal control of this four-way valve 110 of control.Be four-way valve 110 when being in opening state, this solenoid valve 108 is opened thereupon, and when this four-way valve 110 was in closed condition, this solenoid valve 108 also cut out thereupon.
When compound compressor 101 is in refrigerating state; Four-way valve 110 is in opening state; Controlling the electrical signal of this four-way valve 110 opens solenoid valve 108; This intermediate regulations chamber 109 with should in press chamber 106 to be communicated with, at this moment, the refrigerant gas of carrying by injection channel 107 can be stored in simultaneously this intermediate regulations chamber 109 with should in pressure chamber 106; Owing to have two container storage refrigerant gass, the pressure of refrigerant gas just too about-face can not occur, thereby temperature too big rising can not occur, and makes compressor have good refrigeration performance.Simultaneously,, press chamber 106 can adopt less volume design in this, be beneficial to compound compressor 101 and heat owing to be provided with the intermediate regulations chamber 109 that adds.Therefore, compound compressor 101 is in when heating state, and four-way valve 110 is in closed condition; Controlling the electrical signal of this four-way valve 110 closes solenoid valve 108; This intermediate regulations chamber 109 was broken off with should middlely pressing chamber 106, and the gas that increases enthalpy that injection channel 107 is carried can only be stored in the less middle pressure chamber 106 of volume, and the gas that increases enthalpy is compressed back pressure increase; This temperature that increases the gas of enthalpy also can rise, and is beneficial to heating of compressor.
The above is merely preferred embodiment of the present invention, is not to be used for limiting practical range of the present invention; Every according to equivalence variation and modification that the present invention did, all covered by the scope of claims of the present invention.
Claims (7)
1. regulate the structure of pressing the chamber volume size in the compound compressor for one kind; Comprise one-level compression unit and secondary compression unit; Establish low pressure chamber in the one-level compression unit; Establish hyperbaric chamber in the secondary compression unit, between one-level compression unit and secondary compression unit, be provided with and press the chamber in one, it is characterized in that: press the chamber to be connected with the intermediate regulations chamber in said through control valve.
2. a kind of structure of pressing the chamber volume size of regulating in the compound compressor according to claim 1 is characterized in that: said intermediate regulations chamber be located at be communicated with middle pressure chamber injection channel on.
3. a kind of structure of pressing the chamber volume size of regulating in the compound compressor according to claim 1, it is characterized in that: said control valve is a solenoid valve, itself and four-way valve connection in parallel.
4. regulate the method for pressing the chamber volume size in the compound compressor for one kind; Comprise one-level compression unit and secondary compression unit; Establish low pressure chamber in the one-level compression unit, establish hyperbaric chamber in the secondary compression unit, between one-level compression unit and secondary compression unit, be provided with and press the chamber in one; It is characterized in that: through control valve should in press the chamber to be connected with the intermediate regulations chamber, through opening or close the volume in this control valve change pressure chamber in this; When said compound compressor is in refrigerating state, open this control valve, this intermediate regulations chamber is communicated with this middle chamber of pressing; Said compound compressor is in when heating state, closes this control valve, this intermediate regulations chamber with should in press the chamber to break off.
5. a kind of structure of pressing the chamber volume size of regulating in the compound compressor according to claim 4 is characterized in that: said intermediate regulations chamber be located at be communicated with middle pressure chamber injection channel on.
6. according to claim 4 or 5 described a kind of structures of pressing the chamber volume size in the compound compressor of regulating, it is characterized in that: the volume size in said intermediate regulations chamber can be adjusted according to the refrigerating capacity of this compound compressor.
7. a kind of structure of pressing the chamber volume size of regulating in the compound compressor according to claim 4, it is characterized in that: said control valve is a solenoid valve, itself and four-way valve connection in parallel are by the same electrical signal control of this four-way valve of control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210129597.0A CN102705237B (en) | 2012-04-27 | 2012-04-27 | Structure and method for adjusting volume of medium-pressure cavity of two-stage compressor |
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| CN201210129597.0A CN102705237B (en) | 2012-04-27 | 2012-04-27 | Structure and method for adjusting volume of medium-pressure cavity of two-stage compressor |
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| CN102705237A true CN102705237A (en) | 2012-10-03 |
| CN102705237B CN102705237B (en) | 2015-08-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339666A (en) * | 2013-08-23 | 2016-02-17 | 东芝开利株式会社 | Multi-stage compressor and refrigeration cycle device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6357889A (en) * | 1986-08-29 | 1988-03-12 | Toshiba Corp | Rotary type compressor |
| JPS63138189A (en) * | 1986-11-29 | 1988-06-10 | Toshiba Corp | Rotary compressor |
| GB2251656A (en) * | 1990-11-21 | 1992-07-15 | Matsushita Electric Ind Co Ltd | Rotary positive displacement multi-stage compressor. |
| JPH10141270A (en) * | 1996-11-01 | 1998-05-26 | Matsushita Electric Ind Co Ltd | Two stage gas compressor |
| JP2000130870A (en) * | 1998-10-30 | 2000-05-12 | Sanyo Electric Co Ltd | Multicylinder type rotary compressor |
| JP2005171847A (en) * | 2003-12-10 | 2005-06-30 | Toshiba Kyaria Kk | Refrigerating cycle device |
| CN201661464U (en) * | 2010-02-23 | 2010-12-01 | 上海日立电器有限公司 | Two-stage rotor type compressor provided with by-path structure |
| CN202203116U (en) * | 2011-07-19 | 2012-04-25 | 珠海格力电器股份有限公司 | Double-cylinder variable-capacity rotary compressor and air conditioning system thereof |
-
2012
- 2012-04-27 CN CN201210129597.0A patent/CN102705237B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6357889A (en) * | 1986-08-29 | 1988-03-12 | Toshiba Corp | Rotary type compressor |
| JPS63138189A (en) * | 1986-11-29 | 1988-06-10 | Toshiba Corp | Rotary compressor |
| GB2251656A (en) * | 1990-11-21 | 1992-07-15 | Matsushita Electric Ind Co Ltd | Rotary positive displacement multi-stage compressor. |
| JPH10141270A (en) * | 1996-11-01 | 1998-05-26 | Matsushita Electric Ind Co Ltd | Two stage gas compressor |
| JP2000130870A (en) * | 1998-10-30 | 2000-05-12 | Sanyo Electric Co Ltd | Multicylinder type rotary compressor |
| JP2005171847A (en) * | 2003-12-10 | 2005-06-30 | Toshiba Kyaria Kk | Refrigerating cycle device |
| CN201661464U (en) * | 2010-02-23 | 2010-12-01 | 上海日立电器有限公司 | Two-stage rotor type compressor provided with by-path structure |
| CN202203116U (en) * | 2011-07-19 | 2012-04-25 | 珠海格力电器股份有限公司 | Double-cylinder variable-capacity rotary compressor and air conditioning system thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105339666A (en) * | 2013-08-23 | 2016-02-17 | 东芝开利株式会社 | Multi-stage compressor and refrigeration cycle device |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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| CN102705237B (en) | 2015-08-26 |
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