CN1924359A - Capacity controlled compressor with one and two cylinders - Google Patents
Capacity controlled compressor with one and two cylinders Download PDFInfo
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- CN1924359A CN1924359A CN 200510029207 CN200510029207A CN1924359A CN 1924359 A CN1924359 A CN 1924359A CN 200510029207 CN200510029207 CN 200510029207 CN 200510029207 A CN200510029207 A CN 200510029207A CN 1924359 A CN1924359 A CN 1924359A
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Abstract
This invention relates to one single or double cylinder capacity control compressor, which comprises one double cylinder compressor with double liquid storage and one volume switch device, wherein, the said compressor blades chamber adopt sealed structure connected to one gas control pipe; at double gas entrance, gas cylinder sealed blade chamber and high voltage discharge tube are passed with one or two four-way valve for controlling gas pressure difference to realize the switch between single cylinder compressor and double parallel compression to get discharge volume from cylinder discharge volume.
Description
Technical field
The present invention relates to a kind of rotary compressor that is used for air conditioner, refrigerating machine and heat pump water heater, specifically refer to the controlled standard compressor that capacity can switch between single, double cylinder air displacement.
Background technique
Existing capacity controlled compressor generally is to offer the hole that communicates with suction, exhaust cavity in the upper and lower cylinder cap position of single stage compressor cylinder, utilizes the break-make in these holes of electromagnetic valve again, realizes volume controlled; Also have and utilize two or multiple compressors parallel connection to realize volume controlled.These volume controlled mode technical sophistications, poor reliability, overall cost is higher, is difficult to practical application.
Summary of the invention
The objective of the invention is to propose a kind of single, double cylinder capacity controlled compressor, be designed to the closed structure that only communicates with a gas pilot line by blade cavity with one or two cylinder of described duplex cylinder compressor, and the control that is connected by a four-way valve or two four-way valves between double suction tracheae liquid-storage container, two cylinder intakepories of compressor, sealed mode blade cavity and high-pressure exhaust pipe, the control refrigerant flow direction, with single cylinder compression operation or the twin-tub compression operation that realizes duplex cylinder compressor, thereby obtain multiple air displacement output.
A kind of list of the present invention, the twin-tub capacity controlled compressor, the duplex cylinder compressor that mainly comprises a band double suction tracheae liquid-storage container, one capacity COMM communication, it is characterized in that: the blade cavity of one or two cylinder of described duplex cylinder compressor adopts the closed structure that only communicates with a gas pilot line, at double suction tracheae liquid-storage container, the compresser cylinder intakeport, the control that is connected by a four-way valve or two four-way valves between cylinder sealed mode blade cavity and the high-pressure exhaust pipe, mat blade cavity and the gas pressure difference between the air aspiration cavity are controlled corresponding cylinder blade and are contacted or break away from cylinder piston, realize the conversion of compressor between single cylinder compression operation or twin-tub compression operation in parallel, thereby obtain the air displacement of upper cylinder or the air displacement of lower cylinder, or on, the multiple air displacement of air displacement sum of following two cylinders.
The invention has the advantages that: by adopting being connected of sealed mode blade cavity structure and one or two four-way valve of use and two cylinder compressors, can realize the conversion of single cylinder and twin-tub compression easily, finish the control of two or three air displacement, not only control is very simple, reliable, simplified processing technology, reduce cost for manufacturing compressor, and can reduce the installing space of compressor, strengthened the market competitiveness of compressor.
Description of drawings
When Fig. 1 is four-way valve connection of embodiment's 1 employing, be in the schematic representation of twin-tub state in parallel;
Fig. 2 is in the schematic representation of upper cylinder half idle running, following cylinder compressive state for embodiment 1;
Fig. 3 is in the schematic representation of cylinder idle running, upper cylinder half compressive state down for embodiment 2;
When Fig. 4 is two four-way valves connections of embodiment's 3 employings, be in the schematic representation of twin-tub state in parallel;
Fig. 5 is in the schematic representation of upper cylinder half idle running, following cylinder compression for embodiment 3;
Fig. 6 is in the schematic representation of cylinder idle running down, upper cylinder half compression for embodiment 3;
Fig. 7 is a compressor pump longitudinal section schematic representation, and the relation of blade, piston and blade cavity is shown;
Cavity intra vane view (cross section sectional plane) when Fig. 8 normally compresses for cylinder;
Cavity intra vane view (cross section sectional plane) when Fig. 9 dallies for cylinder.
Among the figure: 10 lower cylinders, 12 times intakepories, 14 times relief openings, 16 times sealed mode blade cavities, 30 upper cylinders, 31 upper blades, intakeport on 32, air aspiration cavity on 33, relief opening on 34,35 upper pistons, sealed mode blade cavity on 36,40 upper cylinder covers, 42 upper blade chamber imports, 50 times cylinder caps, 52 lower blade chamber imports, 60 housings, 62 compressor total air escape pipes, 70 double suction tracheae liquid-storage containers, the outlet of 72,74 liquid-storage containers, 80 four-way change-over valves (pipe 82, the pipe 84, the pipe 86, the pipe 88), 90 four-way change-over valves (pipe 92, the pipe 94, the pipe 96, the pipe 98).
Mode of execution
Now the invention will be further described in conjunction with several embodiments.
Embodiment 1: can change between twin-tub compression in parallel and upper cylinder idle running, lower cylinder single cylinder compression two states, export the air displacement sum of two cylinders or the air displacement of lower cylinder, (referring to Fig. 1-2).
Be characterized in: have two cylinders 10 of double suction tracheae liquid-storage container 70 and compressor and four-way valve 80 of 30 connects to form by one, the blade cavity 36 of the upper cylinder 30 of described duplex cylinder compressor adopts closed structure, at double suction tracheae liquid-storage container 70, on the compressor, following two cylinders 30,10 gas port 32,12, the control that is connected by described four-way valve 80 between upper cylinder sealed mode blade cavity 36 and the high-pressure exhaust pipe 62, gas pressure difference control upper cylinder blade 31 between mat blade cavity 36 and the air aspiration cavity 33 contacts or breaks away from upper cylinder piston 35, realize the conversion of compressor between compression of upper cylinder single cylinder or twin-tub compression in parallel, thus obtain the output upper cylinder air displacement or on, the air displacement sum of following two cylinders.
If: a state A of described four-way valve 80 is that 4 passages communicate in twos, promptly manages 84 and 86 is connected with pipe, and pipe 82 is connected with pipe 88, and another state B is that 4 passages hand over justice to be communicated with, and promptly manages 82 and is connected with pipe 84, manage 86 with manage 88 and be connected.
Its Placement is: a way outlet 72 of liquid-storage container 70 is connected with lower cylinder intakeport 12, and lower cylinder relief opening 14 enters in the compressor housing 60; Another route of liquid-storage container outlet 74 links to each other with four-way valve pipe 86, four-way valve pipe 84 is connected with the intakeport 32 of upper cylinder, upper cylinder relief opening 34 also enters in the housing 60, the outlet pipe 62 on compressor top is connected with systemic circulation, and be connected with the pipe 82 of four-way valve, the pipe 88 of four-way valve communicates with the sealed mode blade cavity 36 of upper cylinder.This connection can obtain two kinds of air displacement outputs, i.e. lower cylinder air displacement or two cylinder displacement sums.
Its working procedure is as follows:
1. twin-tub compression in parallel: what this moment, compressor was exported is two cylinder displacement sums, as shown in Figure 1.
This moment, four-way valve 80 was in A condition, promptly managed 84 and 86 was communicated with pipe, manage 82 with manage 88 and be communicated with.Gas one route in liquid-storage container outlet 72 enters lower cylinder 10 by intakeport 12, and pressurized gas 14 exhausts after the compression enter compressor housing 60; Another route outlet 74 enters into the intakeport 32 of upper cylinder by four-way valve pipe 86 and pipe 84, pressurized gas 34 after the upper cylinder gas compression also discharge the inside that enters into housing 60, merge into one with the pressurized gas 14 of lower cylinder compressed exhaust, the outlet pipe 62 by compressor top outputs to the air displacement of two cylinders in the systemic circulation.Communicate with pipe 82 because of outlet pipe 62 simultaneously, pressurized gas are exerted pressure to the back of blade 31 by the sealed mode blade cavity 36 that pipe 82, pipe 88 enter upper cylinder, thereby keep blade to contact all the time with piston, this moment, the state of blade can guarantee to be in compressive state with reference to figure 7, shown in Figure 8.
2. upper cylinder idle running, the compression of lower cylinder single cylinder: as shown in Figure 2.
This moment, four-way valve 80 was in the B state, promptly managed 86 and 88 was communicated with pipe, manage 82 with manage 84 and be communicated with.One way outlet 72 of liquid-storage container enters lower cylinder 10 by intakeport 12, and pressurized gas 14 exhausts after the compression enter compressor housing 60, and enter into systemic circulation by the outlet pipe 62 on compressor top; Another road low-pressure gas in the liquid-storage container is by the sealed mode blade cavity 36 that exports 74, the pipe of four-way valve 86 and pipe 88 enter into upper cylinder 30, because of outlet pipe 62 communicates with the pipe 82 of four-way valve, pressurized gas are entered into the cavity 33 of upper cylinder by pipe 82, pipe 88 suction ports 32, and be air-breathing low-pressure gas in the blade cavity 36 of upper cylinder, upper blade 31 breaks away from fully with upper piston 35 under the effect of high low pressure gas differential pressure, upper piston 35 dallies in upper cylinder 30, at this moment the blade cavity of upper cylinder and gaseous state such as the Fig. 7, shown in Figure 9 in the cavity.
Embodiment 2: can change between twin-tub compression in parallel and lower cylinder idle running, upper cylinder single cylinder compression two states, export the air displacement sum of two cylinders or the air displacement of upper cylinder, (referring to Fig. 3).
Its characteristics are for having two cylinders 10 of double suction tracheae liquid-storage container 70 and compressor and four-way valve 80 of 30 connects to form, the blade cavity 16 employing closed structures of the lower cylinder 10 of described duplex cylinder compressor by one.Its Placement is: wherein a way outlet 74 of liquid-storage container 70 is connected with upper cylinder intakeport 32, and upper cylinder relief opening 34 enters in the compressor housing 60; Another route of liquid-storage container outlet 72 links to each other with four-way valve pipe 86, four-way valve pipe 84 is connected with the intakeport 12 of lower cylinder, lower cylinder relief opening 14 also enters in the housing 60, the outlet pipe 62 on compressor top is connected with systemic circulation, and be connected with the pipe 82 of four-way valve, the pipe 88 of four-way valve communicates with the sealed mode blade cavity 36 of lower cylinder.
Its working procedure is similar to embodiment 1.
Embodiment 3: can compress in compression of upper cylinder single cylinder or lower cylinder single cylinder, or change between three kinds of states of twin-tub compression in parallel, the air displacement of output upper cylinder or the air displacement of lower cylinder, or the air displacement sum of two cylinders are referring to Fig. 4-6.
Be characterized in having two cylinders 10 of double suction tracheae liquid-storage container 70 and compressor and two four-way change-over valves 80,90 of 30 connect to form by one, the blade cavity of two cylinders is closed structure, and the suction port in two cylinders is connected respectively with two four-way valves with airtight blade cavity.
If: a state A of four-way valve 80 is connected with pipe 86 for pipe 84, and pipe 82 is connected with pipe 88, and another state B is connected with pipe 84 for pipe 82, and pipe 86 is connected with pipe 88; A state A of four-way valve 90 is connected with pipe 96 for pipe 94, and pipe 92 is connected with pipe 98, and another state B is connected with pipe 94 for pipe 92, and pipe 96 is connected with pipe 98.
Its Placement is: a way outlet 72 of liquid-storage container is connected with the pipe 96 of four-way valve 90, and the pipe 94 of four-way valve 90 is connected with the intakeport 12 of lower cylinder 10, and the relief opening 14 of lower cylinder enters the inside of housing 60; Another way outlet 74 of liquid-storage container is connected with the pipe 86 of four-way valve 80, the pipe 84 of four-way valve 80 is connected with the intakeport 32 of upper cylinder 30, the high relief opening 34 of upper cylinder also enters the inside of housing 60, and enter systemic circulation by the outlet pipe 62 on compressor top, outlet pipe 62 communicates with the pipe 82 of four-way valve 80 and the pipe 92 of four-way valve 90 simultaneously, the pipe 88 of four-way valve 80 communicates with the sealed mode blade cavity 36 of upper cylinder, and the pipe 98 of four-way valve 90 communicates with the sealed mode blade cavity 16 of lower cylinder.This connection can obtain the output of three kinds of air displacemenies, i.e. upper cylinder air displacement or lower cylinder air displacement, or the air displacement sum of two cylinders.
Its working procedure is as follows:
1. twin-tub compression in parallel: what this moment, compressor was exported is two cylinder displacement sums, as shown in Figure 4.
Two four- way valves 80,90 all are in A condition, and promptly the pipe 86 of four-way valve 80 is communicated with pipe 84, and pipe 82 is communicated with pipe 88, and the pipe 96 of four-way valve 90 is communicated with pipe 94 simultaneously, and pipe 92 is communicated with pipe 98.The pipe 96 of one way outlet 72 of liquid-storage container by four-way valve 90 and pipe 94 enter into the intakeport 12 of lower cylinder 10, and the pressurized gas after the lower cylinder gas compression enter the inside of housing 60 from relief opening 14; The pipe 86 of another way outlet 74 of liquid-storage container by four-way valve 80 and pipe 84 enter into the intakeport 32 of upper cylinder 30, pressurized gas after the upper cylinder gas compression also enter the inside of housing 60 from relief opening 34, the pressurized gas of discharging with lower cylinder converge, outlet pipe 62 by compressor top enters systemic circulation, exports the air displacement sum of upper and lower two cylinders.While is because of the pipe 82 of four-way valve 80, the pipe 92 of four-way valve 90 all communicates with outlet pipe 62, pressurized gas communicate the pressure that provides maintenance upper blade and upper piston to contact all the time at the upper blade back by the pipe 82 of four-way valve 80, pipe 88 with the sealed mode blade cavity 36 of upper cylinder; In like manner, pressurized gas communicate the pressure that provides maintenance lower blade and lower piston to contact all the time at the lower blade back, the state of blade such as Fig. 7, shown in Figure 8 by the pipe 92 of four-way valve 90, pipe 98 with the sealed mode blade cavity 16 of lower cylinder.
2. upper cylinder half idle running, cylinder single cylinder compression down, this moment as shown in Figure 5.
This moment, valve 80 was in the B state, and valve 90 is in A condition, and promptly the pipe 86 of four-way valve 80 is communicated with pipe 88, and pipe 82 is communicated with pipe 84; The pipe 96 of four-way valve 90 is communicated with pipe 94, and pipe 92 is communicated with pipe 98.One way outlet 72 of liquid-storage container enters lower cylinder 10 by the pipe 96 of four-way valve 90 with pipe 94, and the pressurized gas 14 after the gas compression enter compressor housing 60, and enter systemic circulation by the outlet pipe 62 on compressor top; The pipe 86 of another way outlet 74 of liquid-storage container by four-way valve 80 and pipe 88 enter into the sealed mode blade cavity 36 of upper cylinder 30.The pipe 82 of four-way valve 80 communicates with outlet pipe 62, pressurized gas are by the pipe 82 of four-way valve, the suction port 32 that pipe 84 enters into upper cylinder, therefore be pressurized gas in the upper cylinder cavity 33, and be air-breathing low-pressure gas in the blade cavity 36, upper blade 31 breaks away from upper piston 35 under differential pressure action, the exhaust valve plate of upper cylinder cover because of inside and outside be high pressure and do not open, upper cylinder does not have gas compression, upper piston dallies in upper cylinder.Blade cavity 36 and interior gaseous state such as the Fig. 7, shown in Figure 9 of cavity.This shows.This moment, compressor was upper cylinder idle running, lower cylinder single cylinder compressive state, the air displacement of output lower cylinder.
3. lower cylinder idle running, the compression of upper cylinder single cylinder, this moment as shown in Figure 6.
In like manner, when four-way valve 80 be in A condition, when four-way valve 90 is in the B state, compressor can be realized the function of lower cylinder idle running, the compression of upper cylinder list cylinder, what obtain is the air displacement of upper cylinder.
Claims (4)
1. list, the twin-tub capacity controlled compressor, the duplex cylinder compressor that mainly comprises a band double suction tracheae liquid-storage container, one capacity COMM communication, it is characterized in that: the blade cavity of one or two cylinder of described duplex cylinder compressor adopts the closed structure that only communicates with a gas pilot line, at double suction tracheae liquid-storage container, the compresser cylinder intakeport, the control that is connected by a four-way valve or two four-way valves between cylinder sealed mode blade cavity and the high-pressure exhaust pipe, mat blade cavity and the gas pressure difference between the air aspiration cavity are controlled corresponding cylinder blade and are contacted or break away from cylinder piston, realize the conversion of compressor between single cylinder compression operation or twin-tub compression operation in parallel, thereby obtain the air displacement of upper cylinder or the air displacement of lower cylinder, or on, the air displacement sum of following two cylinders.
2. single, double cylinder capacity controlled compressor according to claim 1, it is characterized in that having two cylinders (10) of double suction tracheae liquid-storage container (70) and the compressor and a four-way valve (80) of (30) connects to form by one, the blade cavity (36) of the upper cylinder of described duplex cylinder compressor (30) adopts closed structure; Its Placement is: a way outlet (72) of liquid-storage container is connected with lower cylinder intakeport (12), and lower cylinder relief opening (14) enters in the compressor housing (60); Another route outlet (74) of liquid-storage container links to each other with the pipe (86) of four-way valve, and pipe (84) is connected with the intakeport (32) of upper cylinder, and upper cylinder relief opening (34) also enters in the housing (60); The outlet pipe on compressor top (62) enters systemic circulation, and be connected with the pipe (82) of four-way valve, pipe (88) communicates with the sealed mode blade cavity (36) of upper cylinder, and this connection can obtain two kinds of air displacement outputs, i.e. lower cylinder air displacement or two cylinder displacement sums.
3. single, double cylinder capacity controlled compressor according to claim 1, it is characterized in that having two cylinders (10) of double suction tracheae liquid-storage container (70) and the compressor and a four-way valve (80) of (30) connects to form by one, the blade cavity (16) of the lower cylinder of described duplex cylinder compressor (10) adopts closed structure; Its Placement is: a way outlet (74) of described liquid-storage container is connected with upper cylinder intakeport (32), and upper cylinder relief opening (34) enters in the compressor housing (60); Another route outlet (72) of liquid-storage container links to each other with the pipe (86) of four-way valve, and pipe (84) is connected with the intakeport (12) of lower cylinder, and lower cylinder relief opening (14) also enters in the housing (60); Compressor exhaust pipe (62) with enter systemic circulation, and be connected with the pipe (82) of four-way valve, pipe (88) communicates with the sealed mode blade cavity (16) of lower cylinder, and this connection can obtain two kinds of air displacement outputs, i.e. upper cylinder air displacement or two cylinder displacement sums.
4. single, double cylinder capacity controlled compressor according to claim 1, it is characterized in that having two cylinders (10) of double suction tracheae liquid-storage container (70) and compressor and two four-way change-over valves (80), (90) of (30) connect to form by one, the blade cavity of two cylinders is closed structure; Its Placement is: a way outlet (72) of described liquid-storage container is connected with the pipe 96 of four-way valve (90), and pipe (94) is connected with the intakeport (12) of lower cylinder, and the relief opening of lower cylinder (14) enters in the housing (60); Another way outlet (74) of liquid-storage container is connected with the pipe (86) of four-way valve (80), pipe (84) is connected with the intakeport (32) of upper cylinder (30), upper cylinder relief opening (34) also enters in the housing (60), and enter systemic circulation by compressor exhaust pipe (62), outlet pipe (62) communicates with the pipe (82) of four-way valve (80) and the pipe (92) of four-way valve (90) simultaneously, the pipe (88) of four-way valve (80) communicates with the sealed mode blade cavity (36) of upper cylinder, the pipe (98) of four-way valve (90) communicates with the sealed mode blade cavity (16) of lower cylinder, this connection can obtain three kinds of air displacement outputs, be upper cylinder air displacement or lower cylinder air displacement, or the air displacement sum of two cylinders.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510029207 CN1924359A (en) | 2005-08-30 | 2005-08-30 | Capacity controlled compressor with one and two cylinders |
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| CN 200510029207 CN1924359A (en) | 2005-08-30 | 2005-08-30 | Capacity controlled compressor with one and two cylinders |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101387A1 (en) * | 2007-02-04 | 2008-08-28 | Guang Dong Mei Zhi Refrigeration Equipment Co., Ltd | A controlling method of a rotary compressor |
| CN102588285A (en) * | 2011-01-18 | 2012-07-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner including same |
| CN101793252B (en) * | 2009-01-14 | 2013-01-02 | 东芝开利株式会社 | Multi-cylinder rotary compressor and refrigeration cycle device |
| CN103348202A (en) * | 2010-12-10 | 2013-10-09 | 惠而浦股份公司 | Methods for controlling double-suction line compressors for refrigeration systems |
| CN106500257A (en) * | 2016-10-27 | 2017-03-15 | 广东美的制冷设备有限公司 | The control method and device of air-conditioner and its duplex cylinder compressor |
| CN107084484A (en) * | 2017-04-13 | 2017-08-22 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
| CN107191373A (en) * | 2017-07-31 | 2017-09-22 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigerating plant |
| WO2018018767A1 (en) * | 2016-07-29 | 2018-02-01 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner, and control method |
| CN110118177A (en) * | 2019-03-29 | 2019-08-13 | 重庆奇螺流体设备有限公司 | The two-stage gas compressor and its control method of double suction gas |
| CN110500742A (en) * | 2018-05-16 | 2019-11-26 | 上海海立电器有限公司 | Air-conditioning system and its working method |
-
2005
- 2005-08-30 CN CN 200510029207 patent/CN1924359A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008101387A1 (en) * | 2007-02-04 | 2008-08-28 | Guang Dong Mei Zhi Refrigeration Equipment Co., Ltd | A controlling method of a rotary compressor |
| CN101793252B (en) * | 2009-01-14 | 2013-01-02 | 东芝开利株式会社 | Multi-cylinder rotary compressor and refrigeration cycle device |
| CN103348202A (en) * | 2010-12-10 | 2013-10-09 | 惠而浦股份公司 | Methods for controlling double-suction line compressors for refrigeration systems |
| CN103348202B (en) * | 2010-12-10 | 2016-02-03 | 惠而浦股份公司 | Control the method for the double suction air compressor being used for refrigeration system |
| CN102588285A (en) * | 2011-01-18 | 2012-07-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner including same |
| CN102588285B (en) * | 2011-01-18 | 2014-05-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner including same |
| WO2018018767A1 (en) * | 2016-07-29 | 2018-02-01 | 广东美的制冷设备有限公司 | Cooling and heating air conditioner, and control method |
| CN106500257A (en) * | 2016-10-27 | 2017-03-15 | 广东美的制冷设备有限公司 | The control method and device of air-conditioner and its duplex cylinder compressor |
| CN106500257B (en) * | 2016-10-27 | 2019-10-29 | 广东美的制冷设备有限公司 | The control method and device of air conditioner and its duplex cylinder compressor |
| CN107084484A (en) * | 2017-04-13 | 2017-08-22 | 青岛海尔空调器有限总公司 | A kind of air conditioner and control method |
| CN107084484B (en) * | 2017-04-13 | 2020-11-03 | 青岛海尔空调器有限总公司 | Air conditioner and control method |
| CN107191373A (en) * | 2017-07-31 | 2017-09-22 | 广东美芝制冷设备有限公司 | Rotary compressor and refrigerating plant |
| CN110500742A (en) * | 2018-05-16 | 2019-11-26 | 上海海立电器有限公司 | Air-conditioning system and its working method |
| CN110118177A (en) * | 2019-03-29 | 2019-08-13 | 重庆奇螺流体设备有限公司 | The two-stage gas compressor and its control method of double suction gas |
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Open date: 20070307 |