CN1761848A - System and method for stepped capacity modulation in a refrigeration system - Google Patents
System and method for stepped capacity modulation in a refrigeration system Download PDFInfo
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- CN1761848A CN1761848A CNA2004800072837A CN200480007283A CN1761848A CN 1761848 A CN1761848 A CN 1761848A CN A2004800072837 A CNA2004800072837 A CN A2004800072837A CN 200480007283 A CN200480007283 A CN 200480007283A CN 1761848 A CN1761848 A CN 1761848A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
- F25B2400/0751—Details of compressors or related parts with parallel compressors the compressors having different capacities
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
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- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A control system is provided for generating discrete stepped output capacities in a refrigeration system. The refrigeration system is preferably a multi-evaporator system having two or more multi-capacity compressors. The multi-capacity compressors can be any kind of reciprocating compressor or scroll compressor that can provide two or more different output capacities. The contributions of the compressors to the overall system capacity can be equal, or more preferably, they can be unequal, i.e., one compressor provides more capacity than the other compressor(s). The control system generates the stepped capacities of the refrigeration system by configuring and controlling the operation of the compressors and the output capacity provided by the compressors.
Description
Mutual CROSS-REFERENCE TO RELATED APPLICATION
The application's request enjoys in the priority of No. 60/442,215, the U.S. Provisional Application submitted on January 24th, 2003.
Background technology
Present invention relates in general to a kind of refrigeration system with classification output capacity (stepped output capacities).More particularly, the present invention relates to a kind of control system, it can provide eight kinds or more kinds of discontinuous output capacity for the refrigeration system of compressor with two-stage or more multistage capacity.
(dual capacity compressor) can be the output capacity that refrigeration system provides different brackets with dual capacity.Using a shortcoming of dual capacity is that refrigeration system may need the different output capacity of one of capacity with this compressor, therefore, may cause on the one hand the capacity that produces excessive according to selected compressor configuration (configuration), perhaps may cause the off-capacity that produces on the other hand.
In addition, the output capacity that is used for the different brackets of refrigeration system can obtain by the operation that control be arranged on the compressor of many single capacity in the refrigeration system.United States Patent (USP) 4,384,462 (`462 patents) number disclose a kind of like this system.The `462 patent relates to a kind of multi-stage compression machine cooling system, the compressor that it has many different capabilities with a plurality of link to each other with compressor be in evaporimeter in the different involucrums (enclosure).These compressors have single capacity, and can switch between " connection " state and " disconnection " state.Compressor will cause refrigeration system to be in 2 with the switching of various combination between " connection " and " disconnection " state
NPlant different brackets or running status, also comprise the nought state when all compressors are in " disconnection ".This control can or reduce to increase or reduce the specific run state of refrigeration system according to the increase of the pressure of inspiration(Pi) of system.
In addition, the output capacity of the different brackets of refrigeration system can obtain by the operation that is arranged on many dual capacity in the refrigeration system is sorted.A kind of by United States Patent (USP) 4,501 in this type systematic, 125 (`125 patents) are number disclosed.The `125 patent relates to a kind of humidity control system.This humidity control system is provided with two two-stage compressors that link to each other with evaporimeter in the refrigerating circuit.The `125 patent has been discussed the situation that can obtain the level Four cooling when using two two-stage compressors.This system increases or reduces cooling (heating) level or cooling (heating) state according to the preassigned in the lookup table (look-up table).
Therefore, need a kind of system and method that the classification output capacity is provided in having the refrigeration system of two or more multistage capacity compressors, to satisfy the required specific output capacity of refrigeration system.
Summary of the invention
One embodiment of the present invention relates to a kind of refrigeration system with multiple compressors.Each compressor in the multiple compressors is configured to provide multiple discontinuous output capacity.Refrigeration system also comprises condenser and at least one evaporimeter that is communicated with condenser and described multiple compressors fluid that is communicated with the multiple compressors fluid.Control system is used to control the operation (starting or shut down) of each compressor of multiple compressors, so that a kind of discontinuous output capacity in the multiple discontinuous output capacity of each compressor in the control multiple compressors.Control system is according to the discontinuous output capacity of the compressor of each operation in definite compressor that should move of the required output capacity of refrigeration system and the multiple compressors.
Another embodiment of the present invention relates to the methods of many multistage capacity compressor operations in the refrigeration system that a kind of control has at least one evaporimeter.This method comprises the step of the configuration of many multistage capacity compressors of determining the output capacity that refrigeration system is required and being identified for producing the output capacity that is determined.The configuration of the multistage capacity compressor that is determined is from being used for many multistage capacity compressors, having that the form of the various configurations of compressor operating and compressor capacity obtains.Each configuration in the various configurations is all corresponding to a kind of output capacity of refrigeration system.This method comprises that also the configuration of many multistage capacity compressors that will be determined is applied to many compound compressors, to produce the step of the output capacity that is determined in refrigeration system.
Another embodiment of the invention relates to a kind of refrigeration system, and it has multiple compressors, the condenser that is communicated with the multiple compressors fluid, evaporimeter that at least one is communicated with condenser and multiple compressors fluid and according to the control system of the required output capacity control multiple compressors of refrigeration system.Described multiple compressors has multiple predetermined running configuration, and each the predetermined running configuration in the wherein multiple predetermined running configuration all can be refrigeration system provides predetermined output capacity.Control system is configured to: from multiple predetermined running configuration, select a kind of predetermined running configuration, to satisfy required output capacity most effectively.Every compressor in the multiple compressors all has multiple discontinuous output capacity, and the configuration of every kind of predetermined running of multiple compressors all comprises the discontinuous output capacity of the compressor of the running status of every compressor of multiple compressors and each operation.
An embodiment more of the present invention relates to a kind of method of controlling many multistage capacity compressor operations in the refrigeration system.This method comprises providing to have refrigeration system that is connected many multistage capacity compressors, condenser and a plurality of evaporimeters in the closed refrigerant loop and the step of determining the output capacity that this refrigeration system is required.This method also comprises the configuration of the multistage capacity compressor of determining to have predetermined output capacity, to satisfy the step of the required output capacity that is determined.Every multistage capacity compressor of described many multistage capacity compressors all has multiple discontinuous output capacity, and the configuration of many multistage capacity compressors that are determined comprises the discontinuous output capacity of the multistage capacity compressor of the running status of each compressor of many multistage capacity compressors and each operation.This method also comprises the configuration control instruction corresponding that produces with many multistage capacity compressors that are determined, to control the step that many multistage capacity compressors produce the predetermined output capacity that is used for refrigeration system.
An advantage of the present invention is various output capacity can be provided, so that be complementary with the required output capacity of refrigeration system more accurately, thereby can avoid producing useless excessive capacity.
From below in conjunction with accompanying drawing and by the shown principle of the invention of example to being clear that other features and advantages of the present invention more the more detailed description of preferred implementation.
Description of drawings
Fig. 1 schematically shows an embodiment of refrigeration system of the present invention;
The form of Fig. 2 shows the level of output capacity and the corresponding configuration of two dual capacity being produced by control system of the present invention;
The form of Fig. 3 shows by several different output capacities that compressor configuration provided;
Fig. 4 is the flow chart of control procedure of the present invention.
As possible, all representing same or analogous parts with identical Reference numeral in the accompanying drawing.
The specific embodiment
In Fig. 1, show and to use conventional system of the present invention by means of example.As shown in the drawing, heating, heating ventilation and air-conditioning (HVAC) or refrigeration system 100 comprise first compressor 102, second compressor 104, condenser 106, one or more evaporimeter 108, (or a plurality of) expansion gear 110 and a control panel 140.Control panel 140 can comprise analog to digital (A/D) converter, microprocessor, nonvolatile memory and interface board.Below with the operation of description control panel 140 in more detail.Traditional refrigeration or HVAC system 100 also comprise many other unshowned features in Fig. 1.For simplifying accompanying drawing so that explanation has a mind to omit these features.
In refrigeration system 100, compressor 102 and 104 compress refrigerant vapor also make compressed refrigerant vapour be delivered to condenser 106 by single pipeline.Compressor 102 and 104 output interconnect, so that mix in single pipeline from the compressed cold-producing medium vapour of each compressor 102 and 104, are transported to condenser 106 subsequently.In addition, have only in compressor 102 and 104 under the situation of compressor operation, other compressors 102 and 104 output are closed or are sealed by the valve (not shown), to prevent that cold-producing medium from passing through off- duty compressor 102 and 104 and refluxing.The compressor 102 and 104 preferably multistage capacity that has of any kind is exported, is the reciprocating type or scroll compressor of two or more discontinuous output capacity levels.Certainly, be contemplated that the present invention can use the compressor of any kind that two or more discontinuous output capacities can be provided.
In another embodiment of the present invention, can separately carry and keep separately from the compressed cold-producing medium vapours of each compressor 102 and 104 outputs, when the cold-producing medium vapour of output mixes in condenser 106 till.In another embodiment of the invention, can independently carry the refrigerant loop from the compressed cold-producing medium vapour of each compressor 102 and 104 outputs, promptly when cold-producing medium when the systemic circulation, do not mix with compressed cold-producing medium vapour from the compressed cold-producing medium vapour of a compressor from another compressor.In this embodiment, condenser in each loop and evaporimeter can have any suitable layout, cause when still keeping independently cold-producing medium circulation, carry out necessary heat exchange.
In Fig. 1, flow through or carry out heat exchange with the fluid of air or water preferably when flowing around the heat exchanger coil in the condenser 106 from the cold-producing medium vapour of compressor 102 and 104.As the result who carries out heat exchange with described fluid, the cold-producing medium vapour in the condenser 106 becomes refrigerant liquid through phase transformation.The liquid refrigerant that is condensed flows through expansion gear 110 (one or more) from condenser 106 and arrives evaporimeter 108.Expansion gear (one or more) 110 can be the suitable device that highly pressurised liquid is transformed into low pressure liquid and vapour of any kind of, for example expansion valve or capillary.
Then, according to the concrete configuration of refrigeration system 100, the output of expansion gear (one or more) 110 is offered one or more evaporimeters 108.Can according to the specific cooling requirement of refrigeration system 100 or output capacity demand (below will discuss in more detail) be closed one or more evaporimeters 108 or stop using.The valve (not shown) at the entrance and exit place by being arranged on each inactive evaporimeter 108 can prevent that refrigerant liquid and/or vapour from entering inactive evaporimeter 108.In another embodiment of the present invention, the pipeline that picks out from expansion gear 110 can be connected on the branch road that is provided with the suitable valve that links to each other with each evaporimeter 108.Branch road can be configured or operated to suitable evaporimeter 108 cold-producing medium is provided.Similarly, the output of evaporimeter 108 can be connected on the branch road that is provided with suitable valve, and this branch road only can be configured or operated to and provide the cold-producing medium vapour with single pipeline to compressor 102 and 104.No matter be on pipeline independently or on branch road, evaporimeter 108 stop using and closing all of valve can be controlled individually by central control system control or at each evaporimeter 108 place.
From the refrigerant liquid of expansion gear 110 with gasification streams is crossed or carry out heat exchange with the fluid of air preferably when flowing around the heat exchanger coil of the evaporimeter 108 of each operation, to reduce the temperature of air.Owing to carry out heat exchange with air, the refrigerant liquid phase transformation in the evaporimeter 108 becomes refrigerant vapour.Cold-producing medium vapour in the evaporimeter 108 flows out evaporimeter 108 and turns back to compressor 102 and 104 by common pall by air-breathing connector, thereby finishes circulation.The quantity of the evaporimeter 108 in refrigeration system 100 can change to N from one, wherein N preferably with the corresponding number (below will discuss in more detail) of maximum progression of the classification output of compressor 102 and 104.But in another embodiment of the present invention, the quantity of evaporimeter can be greater than the progression of the classification of compressor 102 and 104 output, and promptly N is greater than the maximum progression of classification output.In this embodiment, because the quantity of the sum of series evaporimeter of classification output is identical in this embodiment, the output of evaporimeter and the output of compressor do not match.For example, if compressor shown in Figure 1 102 and 104 is two dual capacity, then N is preferably eight (referring to Fig. 2), and eight (perhaps can be more) evaporimeters 108 can be set in refrigeration system 100.
In another embodiment of the present invention, can increase the platform number of compressor 102 and 104 and/or the capacity number that provides by each compressor 102 and 104 can be provided, offer the total amount (below will discuss in more detail) of the classification output capacity of refrigeration system 100 with increase.Correspondingly, because output capacity progression increases,, thereby can keep the best ratio of an evaporimeter and a kind of output capacity level so the evaporimeter 108 that can be used in the refrigeration system 100 is in optimal number (N).
The compressor 102 and 104 and by the output capacity of controlling operating compressor 102 and 104 produce the not at the same level output capacity that be used for refrigeration system 100 of control system of the present invention by being controlled at special time operation.By the operation of control compressor and their output capacity, control system of the present invention can produce the output capacity not at the same level that is used for refrigeration system 100.Fig. 2 shows and is used to obtain the compressor shown in Figure 1 102 of eight kinds of discontinuous levels and 104 operation configuration.Compressor 102 and 104 shown in Figure 1 is dual capacity, it have total output capacity that compressor 102 and 104 are provided half the first order and the second level of total output capacity of compressor 102 and 104 is provided.As seeing among Fig. 2, can produce or obtain four kinds of discontinuous levels by in two kinds of operational modes a kind of, making a compressor 102 and 104 operations; Can produce or obtain four kinds of other discontinuous levels by in two kinds of operational modes a kind of, two compressors 102 and 104 all being moved.Be understood that compressor 102 and 104 customized configuration can be associated with any specific step, Fig. 2 just is used to illustrate with the related situation shown in 3.But these sequence of steps are preferably identical with the order that increases power system capacity.
When adding other compressor in refrigeration system 100, control system of the present invention (and the control flow chart among Fig. 2) will be expanded, so that provide additional control configuration for new compressor (one or many).For example, other new compressor can produce the newly-increased level of the first order output that is used for new compressor and second level output and newly-increased grade that the output of new compressor and compressor 102 and 104 one or two s' output is combined.Similarly, if replace one of compressor 102 and 104 with multistage capacity compressor with three kinds or more kinds of discontinuous output capacities, control system then of the present invention (and the control flow chart among Fig. 2) will be expanded, so that dispose for the new compressor capacity provides additional control.
In order to further specify the operation of control system of the present invention, the output capacity level of Fig. 2 is applied to several different compressors 102 and 104 configuration.Fig. 3 provides the output capacity of eight grades each grade that is used for four kinds of different compressor configuration.These four kinds of different compressor configuration comprise: a compressor provide total system capacity 40%, other compressor provides 60% configuration of total system capacity, for example capacity is the compressor that two tons compressor and capacity are three tons; One compressor provide total system capacity 30%, other compressor provides 70% configuration of total system capacity, for example capacity is the compressor that one ton compressor and capacity are two and 1/3rd tons; One compressor provide total system capacity 20%, other compressor provides 80% configuration of total system capacity, for example capacity is the compressor that one ton compressor and capacity are four tons; And every compressor all provides 50% configuration of total system capacity, and for example a pair of capacity is two tons a compressor.
As can be seen from Figure 3, if adopt the compressor 102 and 104 of the different capabilities have control system of the present invention, can produce eight kinds of different output capacities by eight grades or eight kinds of configurations.Yet,, can only produce four kinds of different output capacities by eight grades or eight kinds of configurations if adopt compressor 102 and 104 with identical output capacity.This is because the identical output capacity of some grades generation.Therefore, in preferred implementation of the present invention, compressor 102 and 104 has different output capacities, so that obtain maximum output capacity levels.Can be according to the minimum and maximum demand of refrigeration system 100 and specific total output capacity of and selection compressor 102 and 104 definite according to the specific output capacity level of user's expectation.
Fig. 4 shows the method for the suitable output capacity of determining refrigeration system 100.This method is from determining the step 402 of refrigeration system 100 required output capacities.The required output capacity of refrigeration system 100 is relevant with the cooling requirement of evaporimeter (one or more) 108.This cooling requirement can be the function, two of quantity of evaporimeter of function, operation of fluid temperature (F.T.) to be cooled or the combination of any other suitable factor.For example, in refrigeration system shown in Figure 1 100, cooling requirement is moving and other three situations that evaporimeter 108 does not move based on five evaporimeters 108.This can appear in the situation in the building for example, and wherein each evaporimeter 108 is all to the specific region of building cooling.
Behind the output capacity of having determined refrigeration system 100 in step 402, in step 404, control system is determined the configuration of compressor 102 and 104, to satisfy or to satisfy most effectively required output capacity best.The information of the relevant compressor configuration that the control system assessment stores is as the information among Fig. 2, to determine suitable compressor configuration.Can utilize control system that the information about compressor configuration is stored in any suitable mode quick and retrieval easily.Can be in form, database or any other suitable configuration with information storage.In one embodiment, control system can associate the quantity of the evaporimeter 108 of operation with the corresponding steps with a kind of configuration, to produce suitable output capacity.Return in the example of above-mentioned five evaporimeters 108 operations, control system can be selected level 5, and the quantity Matching of this grade and the evaporimeter 108 of operation also has the compressor configuration of the suitable output capacity of generation.In another embodiment, configuration and capacity corresponding that control system can be specific with required output capacity and each are compared, and mate most to determine any configuration and capacity and required output capacity.For example, if required output capacity corresponding to 50% total capacity, control system will compare the output capacity of each configuration, to determine and the 50% required the most approaching configuration of output capacity is provided.
At last, in step 404, the compressor configuration after control system adopt to be determined is also sent appropriate control signals to compressor 102 and 104.Then, the control signal that compressor 102 and 104 sends according to control system is by required configuration operation, thereby obtains required output capacity.
Though described the present invention with reference to preferred implementation, it will be understood by those skilled in the art that under the prerequisite that does not exceed scope of the present invention, can carry out various changes and its parts are equal to replacement.In addition, under the prerequisite that does not break away from basic design of the present invention, can carry out various conversion in accordance with the teachings of the present invention, to adapt to specific situation or material.Therefore, the present invention is not limited to implement the disclosed specific embodiment of best mode of the present invention, and the present invention should comprise all embodiments that fall in the claims scope.
Claims (16)
1. refrigeration system comprises:
Multiple compressors, described multiple compressors have multiple predetermined running configuration, and each predetermined running configuration of wherein said multiple predetermined running configuration all produces the predetermined output capacity that is used for refrigeration system;
The condenser that is communicated with described multiple compressors fluid;
The evaporimeter that at least one is communicated with described condenser and multiple compressors fluid;
Control the control system of described multiple compressors according to the required output capacity of described refrigeration system, this control system is used for selecting a kind of predetermined running configuration from multiple predetermined operation configuration, to satisfy the required output capacity of described refrigeration system most effectively;
Wherein, each compressor of described multiple compressors all has multiple discontinuous output capacity, and every kind of predetermined running configuration of described multiple compressors all comprises a kind of running status and a kind of discontinuous output capacity for each operation compressor that is used for each compressor of described multiple compressors.
2. according to the described refrigeration system of claim 1, wherein, described at least one evaporimeter comprises a plurality of evaporimeters, and the total quantity of described a plurality of evaporimeters equals the total quantity of described multiple predetermined running configuration.
3. according to the described refrigeration system of claim 2, wherein, described control system comprises the memory that stores multiple predetermined running state, and the order of the output capacity that increases in the order of described multiple predetermined running state and the described memory is identical.
4. according to the described refrigeration system of claim 3, wherein, the evaporimeter of the preselected number in described a plurality of evaporimeter is moved according to the selected predetermined running configuration of described multiple compressors control by described control system, and the evaporimeter of described preselected number is corresponding with the sequence identifier of the selected predetermined running configuration that is used for described multiple compressors.
5. according to the described refrigeration system of claim 1, wherein, each compressor of described multiple compressors comprises the dual capacity with the first discontinuous output capacity and second discontinuous output capacity.
6. according to the described refrigeration system of claim 5, wherein, described multiple compressors comprises first compressor and second compressor.
7. according to the described refrigeration system of claim 6, wherein, described multiple predetermined running state comprises eight kinds of running statuses.
8. according to the described refrigeration system of claim 7, wherein, described eight kinds of running statuses are configured for to described refrigeration system eight kinds of discontinuous output capacity levels are provided.
9. according to the described refrigeration system of claim 6, wherein, described first compressor and second compressor are reciprocating compressors.
10. according to the described refrigeration system of claim 5, wherein, the described second discontinuous output capacity is greater than the described first discontinuous output capacity, and the second discontinuous output capacity of described first compressor is greater than the second discontinuous output capacity of described second compressor.
11. an operation method of controlling many multistage capacity compressors in the refrigeration system, this method may further comprise the steps:
Refrigeration system is provided, and this system has many multistage capacity compressors, condenser and a plurality of evaporimeter that is connected in the closed refrigerating circuit;
Determine the output capacity that this refrigeration system is required;
Determine to have the configuration of described many multistage capacity compressors of predetermined output capacity, to satisfy the required output capacity that is determined, the multistage capacity compressor of each of described many multistage capacity compressors all has multiple discontinuous output capacity, the configuration of described many multistage capacity compressors that wherein, are determined comprises the discontinuous output capacity of the compressor of the running status of each compressor of described many multistage capacity compressors and each operation; And
Produce the corresponding control instruction of configuration with described described many multistage capacity compressors that are determined, controlling described many multistage capacity compressors, thereby produce the described predetermined output capacity that is used for described refrigeration system.
12. in accordance with the method for claim 11, wherein, the step of the configuration of described definite many multistage capacity compressors comprises the step of selecting a kind of configuration of described many multistage capacity compressors from the various configurations of described many multistage capacity compressors, and each configuration of wherein said various configurations is corresponding to a kind of predetermined output capacity of described refrigeration system.
13. in accordance with the method for claim 12, wherein, comprise that also described various configurations with described many multistage capacity compressors is stored in the step in the form.
14. in accordance with the method for claim 13, wherein, the step of the configuration of many multistage capacity compressors of described selection comprises a kind of configuration of selecting described many multistage capacity compressors from described form.
15. in accordance with the method for claim 12, wherein, described a plurality of evaporimeters comprise the evaporimeter of each configuration of these many multistage capacity compressors of the described various configurations that is used for described many multistage capacity compressors.
16. in accordance with the method for claim 15, wherein, select the step of a kind of configuration of described many multistage capacity compressors to comprise to select with described a plurality of evaporimeters in a kind of configuration of corresponding described many multistage capacity compressors of quantity of the evaporimeter that moves.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US44221503P | 2003-01-24 | 2003-01-24 | |
| US60/442,215 | 2003-01-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1761848A true CN1761848A (en) | 2006-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800072837A Pending CN1761848A (en) | 2003-01-24 | 2004-01-23 | System and method for stepped capacity modulation in a refrigeration system |
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| Country | Link |
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| US (1) | US20040148951A1 (en) |
| CN (1) | CN1761848A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033155A (en) * | 2017-08-25 | 2020-04-17 | 艾默生环境优化技术有限公司 | Control system for multiple compressors |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006132626A1 (en) * | 2005-06-03 | 2006-12-14 | Carrier Corporation | Capacity control for refrigerant system with multiple compressors |
| JP4626714B2 (en) * | 2008-08-22 | 2011-02-09 | ダイキン工業株式会社 | Refrigeration equipment |
| CN108885037B (en) * | 2016-01-25 | 2021-05-18 | 比泽尔制冷设备有限公司 | Method for controlling a compressor system |
Family Cites Families (44)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2981A (en) * | 1843-03-04 | Penholder | ||
| US114720A (en) * | 1871-05-09 | Improvement in machines for tenoning spokes | ||
| US159904A (en) * | 1875-02-16 | Improvement in eyel | ||
| US43877A (en) * | 1864-08-16 | Improvement in shuttles for looms | ||
| US131882A (en) * | 1872-10-01 | Improvement in roasting ores | ||
| US3074619A (en) * | 1957-11-16 | 1963-01-22 | Svenska Turbin Aktiebolaget Lj | Method of and means for combined operation of automatically capacity regulated compressors |
| US3495418A (en) * | 1968-04-18 | 1970-02-17 | Garrett Corp | Refrigeration system with compressor unloading means |
| FR2153129B2 (en) * | 1971-06-01 | 1974-01-04 | Vulliez Paul | |
| US3885938A (en) * | 1974-01-18 | 1975-05-27 | Westinghouse Electric Corp | Refrigeration system with capacity control |
| US4025326A (en) * | 1975-05-30 | 1977-05-24 | Carrier Corporation | Heat reclaiming system |
| US4951475A (en) * | 1979-07-31 | 1990-08-28 | Altech Controls Corp. | Method and apparatus for controlling capacity of a multiple-stage cooling system |
| US4384462A (en) * | 1980-11-20 | 1983-05-24 | Friedrich Air Conditioning & Refrigeration Co. | Multiple compressor refrigeration system and controller thereof |
| US4535602A (en) * | 1983-10-12 | 1985-08-20 | Richard H. Alsenz | Shift logic control apparatus for unequal capacity compressors in a refrigeration system |
| US4501125A (en) * | 1983-12-05 | 1985-02-26 | The Trane Company | Temperature conditioning system staging control and method |
| JPS60147585A (en) * | 1984-01-11 | 1985-08-03 | Hitachi Ltd | Control of compressor |
| US4947655A (en) * | 1984-01-11 | 1990-08-14 | Copeland Corporation | Refrigeration system |
| US5035119A (en) * | 1984-08-08 | 1991-07-30 | Alsenz Richard H | Apparatus for monitoring solenoid expansion valve flow rates |
| US4633672A (en) * | 1985-02-19 | 1987-01-06 | Margaux Controls, Inc. | Unequal compressor refrigeration control system |
| JPS6460795A (en) * | 1987-08-31 | 1989-03-07 | Toshiba Corp | Rotary compressor |
| JP2557903B2 (en) * | 1987-09-10 | 1996-11-27 | 株式会社東芝 | Air conditioner |
| KR950002921Y1 (en) * | 1991-01-30 | 1995-04-17 | 삼성전자 주식회사 | Controlling circuit of multi-air conditioner |
| JP2718295B2 (en) * | 1991-08-30 | 1998-02-25 | ダイキン工業株式会社 | Scroll compressor |
| JP3335656B2 (en) * | 1992-02-18 | 2002-10-21 | 株式会社日立製作所 | Horizontal compressor |
| JPH07139824A (en) * | 1993-11-12 | 1995-06-02 | Zexel Corp | Compressor control method for vehicle air conditioner |
| FR2731051B1 (en) * | 1995-02-24 | 1997-04-30 | Mecanique De Normandie Soc | VACUUM PUMP WITH CIRCULAR TRANSLATION CYCLE |
| US5616015A (en) * | 1995-06-07 | 1997-04-01 | Varian Associates, Inc. | High displacement rate, scroll-type, fluid handling apparatus |
| JPH09126168A (en) * | 1995-11-01 | 1997-05-13 | Toshiba Corp | Fluid machinery |
| JP3849068B2 (en) * | 1996-02-14 | 2006-11-22 | フィーリング ザ コレクション シュムックバレン ゲーエムベーハー | Cut jewelry fittings and jewelry |
| US5797729A (en) * | 1996-02-16 | 1998-08-25 | Aspen Systems, Inc. | Controlling multiple variable speed compressors |
| DE59806600D1 (en) * | 1997-08-26 | 2003-01-23 | Crt Common Rail Tech Ag | Spiral displacement machine for compressible media |
| CA2304018A1 (en) * | 1997-09-16 | 1999-03-25 | Ateliers Busch S.A. | Spiral vacuum pump |
| US5996364A (en) * | 1998-07-13 | 1999-12-07 | Carrier Corporation | Scroll compressor with unloader valve between economizer and suction |
| US6439864B1 (en) * | 1999-01-11 | 2002-08-27 | Air Squared, Inc. | Two stage scroll vacuum pump with improved pressure ratio and performance |
| JP4319274B2 (en) * | 1998-10-30 | 2009-08-26 | 株式会社日立製作所 | Scroll type fluid machine |
| US6082130A (en) * | 1998-12-28 | 2000-07-04 | Whirlpool Corporation | Ice delivery system for a refrigerator |
| US6286324B1 (en) * | 1998-12-28 | 2001-09-11 | Whirlpool Corporation | Ice level sensing system for an ice maker |
| US6314745B1 (en) * | 1998-12-28 | 2001-11-13 | Whirlpool Corporation | Refrigerator having an ice maker and a control system therefor |
| US6148624A (en) * | 1998-12-28 | 2000-11-21 | Whirlpool Corporation | Ice making system for a refrigerator |
| US6050097A (en) * | 1998-12-28 | 2000-04-18 | Whirlpool Corporation | Ice making and storage system for a refrigerator |
| US6050792A (en) * | 1999-01-11 | 2000-04-18 | Air-Squared, Inc. | Multi-stage scroll compressor |
| JP2001132673A (en) * | 1999-11-04 | 2001-05-18 | Matsushita Electric Ind Co Ltd | Hermetic rotary compressor |
| US6351958B1 (en) * | 2000-01-12 | 2002-03-05 | Whirlpool Corporation | Optic level sensing system for use in a refrigerator |
| US6394120B1 (en) * | 2000-10-06 | 2002-05-28 | Scales Air Compressor | Method and control system for controlling multiple compressors |
| US6928828B1 (en) * | 2004-01-22 | 2005-08-16 | Carrier Corporation | Tandem compressors with economized operation |
-
2004
- 2004-01-23 US US10/764,399 patent/US20040148951A1/en not_active Abandoned
- 2004-01-23 CN CNA2004800072837A patent/CN1761848A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111033155A (en) * | 2017-08-25 | 2020-04-17 | 艾默生环境优化技术有限公司 | Control system for multiple compressors |
| CN111033155B (en) * | 2017-08-25 | 2022-02-15 | 艾默生环境优化技术有限公司 | Control system for multiple compressors |
Also Published As
| Publication number | Publication date |
|---|---|
| US20040148951A1 (en) | 2004-08-05 |
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