CN102691660B - Two-stage double-cylinder compressor with high refrigeration performance - Google Patents
Two-stage double-cylinder compressor with high refrigeration performance Download PDFInfo
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- CN102691660B CN102691660B CN201110422473.7A CN201110422473A CN102691660B CN 102691660 B CN102691660 B CN 102691660B CN 201110422473 A CN201110422473 A CN 201110422473A CN 102691660 B CN102691660 B CN 102691660B
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Abstract
The invention discloses a two-stage double-cylinder compressor with high refrigeration performance, and the compressor comprises a motor stator, a rotor, a crank shaft, an upper roller, a lower roller, an upper flange, an upper air cylinder, a separation plate, a lower air cylinder, a lower flange, a lower flange cover plate and a liquid distributor, wherein the crank shaft is provided with the upper roller and the lower roller which are matched with the inner cavities of the upper and lower air cylinders to work; the lower flange cover plate covers the lower end of the lower flange to form an air discharging cavity of the lower air cylinder; the upper air cylinder, the separation plate, the lower air cylinder and the lower flange are provided with two-stage compression channels which are communicated with the air discharging cavity of the lower air cylinder; the liquid distributor is provided with an air suction pipe which is respectively communicated with the upper air cylinder and the lower air cylinder; the upper flange, the upper air cylinder, the separation plate, the lower air cylinder and the lower flange are further provided with single-stage compression channels which are communicated with the air discharging cavity of the lower air cylinder; the lower flange is provided with a plunger reversing device for controlling any one of the two-stage compression channels and the single-stage compression channels to be selectively switched on/off so as to realize that the lower air cylinder selectively participates in compression work; and the air suction pipe of the upper air cylinder is further provided with a stop valve for controlling air suction to be switched on/off.
Description
[technical field]
The present invention relates to the compressor of various working conditional operation, particularly relate to a kind of secondary double-cylinder of high refrigeration performance.
[background technique]
Two stage compressor, by two second compression, improves compression ratio, is very suitable for the low-temperature heating of heat pump water heater under high pressure ratio condition, be equally also suitable for the air-conditioning high-temperature refrigeration under high pressure ratio condition.But under specified cooling condition, system needs compressor low power consumption, and low compression ratio improves Energy Efficiency Ratio, but two-stage compression creates high pressure ratio, make compressor power consumption high, unfavorable to specified refrigeration; In addition on the one hand, two stage compressor second cylinder air-breathing is vented by the first cylinder and provides, the intermittence (120 degree of scope exhausts of only having an appointment) of air-breathing continuity (360 degree all in air-breathing) correspondence exhaust, cause the second cylinder air-breathing unsaturated, volumetric efficiency is low, it is high that air-conditioning system reflects power consumption, the phenomenon that Energy Efficiency Ratio is low.
[summary of the invention]
The invention provides a kind of structure simple, control convenient, changeable is as required single cylinder single stage compression or the work of twin-tub single stage compression, effectively can reduce power consumption, meet the performance requirement of the specified refrigeration of High-energy-efficienair air conditioner, under other operating modes, the secondary double-cylinder of two stage compressor performance under low-temperature heating or high-temperature refrigeration can be played again.
In order to realize foregoing invention object, the technical solution used in the present invention is:
A kind of secondary double-cylinder of high refrigeration performance, comprise motor stator, rotor, bent axle, upper roller, lower roller, upper flange, upper cylinder, dividing plate, lower cylinder, lower flange, lower flange cover plate and liquor separator, bent axle is equipped with the upper and lower roller with upper and lower cylinder inner cavity cooperating, lower flange cover plate lid is located at the lower end of lower flange and forms lower cylinder exhaust cavity, upper cylinder, dividing plate, lower cylinder and lower flange offer the two-stage compression passage being vented cavity conducting with lower cylinder, liquor separator is provided with the sucking pipe be communicated with upper cylinder, lower cylinder respectively; Upper flange, upper cylinder, dividing plate, lower cylinder and lower flange also offer the single stage compression passage being vented cavity conducting with lower cylinder, the one selectivity break-make described lower flange offering control two-stage compression passage and single stage compression passage, to realize the plunger reversing arrangement that lower cylinder optionally participates in compression work, the sucking pipe of upper cylinder is also provided with the stop valve controlling air-breathing break-make.
The plunger hole that described plunger reversing arrangement comprises Compress Spring, plunger, pressure control pipe and is opened on lower flange, Compress Spring and plunger are arranged in plunger hole from inside to outside successively, pressure control pipe is arranged on the plunger hole port of lower flange outer rim and is optionally communicated with the high pressure side of compressor or low voltage side, in described plunger hole, Compress Spring fixed end is provided with the low-pressure channel be communicated with lower cylinder intakeport, is provided with the inlet hole being vented cavity with the lower cylinder on the downside of lower flange and being communicated with in the middle part of plunger hole; Described two-stage compression passage and single stage compression passage offer the two-stage compression hole and single stage compression hole that are communicated with plunger hole respectively on the upside of lower flange, corresponding plunger are offered the alternative inlet hole that controls and are communicated with circular groove with the one in two-stage compression hole, single stage compression hole.
Described plunger is also provided with Compress Spring joint the projection coordinated with Compress Spring.
The invention has the beneficial effects as follows:
The plunger that the present invention is controlled in lower flange plunger hole by pressure control pipe moves, when pressure control pipe is pressurized gas, plunger in plunger hole moves to left, the exhaust passage of lower cylinder is changed, directly through lower cylinder, dividing plate, upper cylinder and upper flange, namely directly upper baffler is arrived by single stage compression passage, stop valve on the sucking pipe of simultaneously upper cylinder is opened, after the air-breathing compression of upper cylinder, directly be vented after lower cylinder, realize twin-tub single stage compression, meet specified refrigeration demand; When pressure control pipe is low pressure, stop valve on the sucking pipe of simultaneously upper cylinder is closed, the elastic force of Compress Spring makes plunger move to right, the air intake passage of the upper cylinder of two stage compressor is opened, namely two-stage compression passage is through, make compressor recover normal two stage compressor function, meet the low-temperature heating of heat pump water heater under high pressure ratio condition and the air-conditioning high-temperature refrigeration under high pressure ratio condition.
[accompanying drawing explanation]
Fig. 1 is structure sectional view of the present invention;
Fig. 2 be two-stage compression passage of the present invention through time working principle enlarged view;
Fig. 3 be two-stage compression passage of the present invention through time plunger reversing arrangement working state cutaway view Amplified image;
Fig. 4 be single stage compression passage of the present invention through time plunger reversing arrangement working state cutaway view Amplified image;
Fig. 5 is the structural representation of lower flange of the present invention;
Fig. 6 is the A-A sectional view in Fig. 5;
Fig. 7 is the B-B sectional view in Fig. 5.
[embodiment]
As shown in Figures 1 to 7, a kind of secondary double-cylinder of high refrigeration performance, comprise motor stator 1, rotor 2, bent axle 3, upper roller 4, lower roller 5, upper flange 6, upper cylinder 7, dividing plate 8, lower cylinder 9, lower flange 10, lower flange cover plate 11 and liquor separator 12, bent axle 3 is equipped with upper, lower cylinder (7, 9) inner chamber cooperating is upper, lower roller (4, 5), lower flange cover plate 11 lid is located at the lower end of lower flange 10 and forms lower cylinder exhaust cavity 13, upper cylinder 7, dividing plate 8, lower cylinder 9 and lower flange 10 offer the two-stage compression passage 14 being vented cavity 13 conducting with lower cylinder, liquor separator 12 be provided with respectively with upper cylinder 7, the sucking pipe 15 that lower cylinder 9 is communicated with, upper flange 6, upper cylinder 7, dividing plate 8, lower cylinder 9 and lower flange 10 also offer the single stage compression passage 16 being vented cavity 13 conducting with lower cylinder, the one selectivity break-make described lower flange 10 offering control two-stage compression passage 14 and single stage compression passage 16, to realize the plunger reversing arrangement 17 that lower cylinder 9 optionally participates in compression work, the sucking pipe 15 of upper cylinder 7 is also provided with the stop valve 18 controlling air-breathing break-make.
As shown in Fig. 3 to Fig. 7, described plunger reversing arrangement 17 comprises Compress Spring 170, plunger 171, pressure control pipe 172 and the plunger hole 173 be opened on lower flange 10, Compress Spring 170 and plunger 171 are arranged in plunger hole 173 from inside to outside successively, pressure control pipe 172 is arranged on plunger hole 173 port of lower flange 10 outer rim and is optionally communicated with the high pressure side of compressor or low voltage side, in described plunger hole 173, Compress Spring 170 fixed end is provided with the low-pressure channel 19 be communicated with lower cylinder 9 intakeport, also be provided with Compress Spring 170 joint the projection 1710 coordinated with Compress Spring 170 at plunger 171, the inlet hole 20 being vented cavity 13 with the lower cylinder on the downside of lower flange 10 and being communicated with is provided with in the middle part of plunger hole 173, wherein, two-stage compression passage 14 and single stage compression passage 16 offer the two-stage compression hole 140 and single stage compression hole 160 that are communicated with plunger hole 173 respectively on the upside of lower flange 10, corresponding plunger 171 are offered the alternative circular groove 1711 controlling inlet hole 20 and be communicated with the one in two-stage compression hole 140, single stage compression hole 160.
During work, the plunger 171 that pressure control pipe 172 controls in lower flange 10 plunger hole 173 moves, when pressure control pipe 172 is pressurized gas (as shown in Figure 4), stop valve 18 on the sucking pipe of upper cylinder 7 is opened, plunger 171 in plunger hole 173 moves to left, the exhaust passage of lower cylinder 9 is changed, pressurized gas in lower cylinder exhaust cavity 13, by the enterprising pore 20 of lower flange after the circular groove 1711 on the right side of plunger 171 and single stage compression hole 160, directly through lower cylinder 9, dividing plate 8, the single stage compression passage 16 that upper cylinder 7 and upper flange 6 are formed arrives upper baffler, after making the air-breathing compression of upper cylinder 7, not compressed direct exhaust after lower cylinder 9, realize twin-tub single stage compression, meet specified refrigeration demand, when pressure control pipe 172 is low pressure, at this moment, stop valve 18 on the sucking pipe of upper cylinder 7 is closed, the elastic force of Compress Spring 170 makes plunger 171 move to right, the air intake passage of the upper cylinder 7 of two stage compressor is opened, namely two-stage compression passage 14 is through, corresponding closedown lower cylinder exhaust cavity 13 is communicated with single stage compression passage 16, pressurized gas in lower cylinder exhaust cavity 13, by the enterprising pore 20 of lower flange after the circular groove 1711 on the left of plunger 171 and two-stage compression hole 140, pressurized gas in lower cylinder 9 enters upper cylinder 7 by two-stage compression passage 14, discharge after upper cylinder 7 secondary compression again, compressor is made to recover normal two stage compressor function, meet the low-temperature heating of heat pump water heater under high pressure ratio condition and the air-conditioning high-temperature refrigeration under high pressure ratio condition.
The above embodiment is just preferred embodiment of the present invention; not limit practical range of the present invention with this; as opening and closing device is arranged on the lower flange of compressor, the equivalence change that all shapes according to the present invention, structure and principle are done, all should be covered by protection scope of the present invention.
Claims (3)
1. the secondary double-cylinder of a high refrigeration performance, comprise motor stator, rotor, bent axle, upper roller, lower roller, upper flange, upper cylinder, dividing plate, lower cylinder, lower flange, lower flange cover plate and liquor separator, bent axle is equipped with upper, lower cylinder inner chamber cooperating upper, lower roller, lower flange cover plate lid is located at the lower end of lower flange and forms lower cylinder exhaust cavity, upper cylinder, dividing plate, lower cylinder and lower flange offer the two-stage compression passage being vented cavity conducting with lower cylinder, liquor separator be provided with respectively with upper cylinder, the sucking pipe that lower cylinder is communicated with, it is characterized in that: upper flange, upper cylinder, dividing plate, lower cylinder and lower flange also offer the single stage compression passage being vented cavity conducting with lower cylinder, the one selectivity break-make described lower flange offering control two-stage compression passage and single stage compression passage, to realize the plunger reversing arrangement that lower cylinder optionally participates in compression work, the sucking pipe of upper cylinder is also provided with the stop valve controlling air-breathing break-make.
2. the secondary double-cylinder of a kind of high refrigeration performance according to claim 1, it is characterized in that, described plunger reversing arrangement comprises Compress Spring, plunger, pressure control pipe and the plunger hole be opened on lower flange, Compress Spring and plunger are arranged in plunger hole from inside to outside successively, pressure control pipe is arranged on the plunger hole port of lower flange outer rim and is optionally communicated with the high pressure side of compressor or low voltage side, in described plunger hole, Compress Spring fixed end is provided with the low-pressure channel be communicated with lower cylinder intakeport, the inlet hole being vented cavity with the lower cylinder on the downside of lower flange and being communicated with is provided with in the middle part of plunger hole, described two-stage compression passage and single stage compression passage offer the two-stage compression hole and single stage compression hole that are communicated with plunger hole respectively on the upside of lower flange, corresponding plunger are offered the alternative inlet hole that controls and are communicated with circular groove with the one in two-stage compression hole, single stage compression hole.
3. the secondary double-cylinder of a kind of high refrigeration performance according to claim 1, it is characterized in that, described plunger is also provided with Compress Spring joint the projection coordinated with Compress Spring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110422473.7A CN102691660B (en) | 2011-12-15 | 2011-12-15 | Two-stage double-cylinder compressor with high refrigeration performance |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110422473.7A CN102691660B (en) | 2011-12-15 | 2011-12-15 | Two-stage double-cylinder compressor with high refrigeration performance |
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| CN102691660A CN102691660A (en) | 2012-09-26 |
| CN102691660B true CN102691660B (en) | 2014-12-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105283714B (en) * | 2013-05-24 | 2017-10-27 | 三菱电机株式会社 | Heat pump assembly |
| CN104806524B (en) * | 2015-05-13 | 2017-01-04 | 广东美芝制冷设备有限公司 | Rotary compression thermomechanical components |
| DE102017214941A1 (en) | 2017-08-25 | 2019-02-28 | Dometic Sweden Ab | Recreational vehicle, cooling device, control system and method of 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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| GB2251656A (en) * | 1990-11-21 | 1992-07-15 | Matsushita Electric Ind Co Ltd | Rotary positive displacement multi-stage compressor. |
| CN1526954A (en) * | 2003-03-06 | 2004-09-08 | ���ǵ�����ʽ���� | Variable capacity rotary compressor |
| CN1908441A (en) * | 2005-08-02 | 2007-02-07 | 上海日立电器有限公司 | Capacity controlled compressor |
| CN201723445U (en) * | 2010-05-19 | 2011-01-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor capable of single-stage and double-stage switching |
| CN202431552U (en) * | 2012-01-18 | 2012-09-12 | 中国矿业大学 | Electric fan with temperature indicator |
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| JP2002317784A (en) * | 2001-04-19 | 2002-10-31 | Matsushita Electric Ind Co Ltd | Rotary two-stage compressor |
| WO2006090978A1 (en) * | 2005-02-23 | 2006-08-31 | Lg Electronics Inc. | Capacity varying type rotary compressor |
| KR100621028B1 (en) * | 2005-05-19 | 2006-09-15 | 엘지전자 주식회사 | Modulation apparatus for rotary compressor |
| JP2009222329A (en) * | 2008-03-18 | 2009-10-01 | Daikin Ind Ltd | Refrigerating device |
| JP2010090777A (en) * | 2008-10-07 | 2010-04-22 | Daikin Ind Ltd | Rotary compressor |
| WO2011148453A1 (en) * | 2010-05-24 | 2011-12-01 | 三菱電機株式会社 | Two-stage rotary compressor and heat pump apparatus |
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- 2011-12-15 CN CN201110422473.7A patent/CN102691660B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2251656A (en) * | 1990-11-21 | 1992-07-15 | Matsushita Electric Ind Co Ltd | Rotary positive displacement multi-stage compressor. |
| CN1526954A (en) * | 2003-03-06 | 2004-09-08 | ���ǵ�����ʽ���� | Variable capacity rotary compressor |
| CN1908441A (en) * | 2005-08-02 | 2007-02-07 | 上海日立电器有限公司 | Capacity controlled compressor |
| CN201723445U (en) * | 2010-05-19 | 2011-01-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor capable of single-stage and double-stage switching |
| CN202431552U (en) * | 2012-01-18 | 2012-09-12 | 中国矿业大学 | Electric fan with temperature indicator |
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| JP特开2002-317784A 2002.10.31 * |
| JP特开2010-90777A 2010.04.22 * |
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