CN1734217A - Oil supply variable air conditioner and control method thereof - Google Patents
Oil supply variable air conditioner and control method thereof Download PDFInfo
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- CN1734217A CN1734217A CN 200410055135 CN200410055135A CN1734217A CN 1734217 A CN1734217 A CN 1734217A CN 200410055135 CN200410055135 CN 200410055135 CN 200410055135 A CN200410055135 A CN 200410055135A CN 1734217 A CN1734217 A CN 1734217A
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Abstract
This invention relates to an air-conditioning and its control method which has variable oil supply function, wherein the structure of the air-condition includes: an outdoor machine which includes the compressor, reservoir, four valve, outdoor heat exchanger and the machine oil separator; an indoor machine which includes a plurality of indoor heat exchangers. And the outdoor machine includes: besides the machine oil return action caused by the condenser flowing in the reservoir, it also adds the machine oil reserving part which reserves machine oil; the first valve that adjusts the quantity of machine oil which is offered for the compressor; the second valve of the machine oil reservoir part that reserves the machine oil from the machine oil separator; the outdoor control part that induces the quantity of the current of the compressor and control the switch of the first and the second valve. When the circle running is not normal or the machine oil reclaims oil has some problems, this invention can solve these problems, so that it improves the reliability of the compressor and the satisfaction of the consumers.
Description
Technical field
The present invention relates to a kind of air-conditioning; particularly relate to a kind of when the unusual or machine oil of circular flow reclaims the generation problem in the one with multiple type air-conditioning of using inverter compressor and constant speed compressor, for air-conditioning with variable oil-supply function and the control method thereof that provides is provided.
Background technology
In general, air-conditioning is a kind of household electrical appliances that room air are maintained the state of the most comfortable according to purposes and purpose.For example, be adjusted to summer and allow indoor nice and coolly, then allow indoor warm winter, and can regulate indoor humidity, room air is adjusted to the state of comfortable purification.
Along with the life convenience product as air-conditioning etc. enlarges use gradually, just the consumer can require the product of high utilization rate, high-performance and high convenience.
Air-conditioning classification has: the integral air conditioner that is divided into the split-type air conditioner of indoor set and off-premises station, indoor set and off-premises station are united two into one, can hang over wall-hanging air conditioner and photo frame type air-conditioning on the wall, can be erected at the parlor weight reducing type air-conditioning, have the capacity that starts an indoor set and be applicable to self air-conditioning in the small space of family etc., can be applicable to have jumbo medium-and-large-sized air-conditioning in company or the eating and drinking establishment, have the air-conditioning that can start the capacity of a plurality of indoor sets.
Here, above-mentioned split-type air conditioner be divided into be installed on indoor from conditioned space inner supply warm braw or cold wind indoor set and, make above-mentioned indoor function fully carry out heat exchange and condensing agent implemented the off-premises station of compression, expansion etc.
Also have, have as school etc. in the place of a plurality of conditioned spaces of separation, constitute by a plurality of indoor sets or by one or more off-premises station in order to give each conditioned space inner supply warm braw or the above-mentioned one with multiple type air-conditioning of cold wind.
But even start with above-mentioned a plurality of indoor sets 100%, above-mentioned one with multiple type air-conditioning also must have the capacity that can all start above-mentioned a plurality of indoor sets.That is, when a plurality of indoor sets all started with 100% output state, above-mentioned air-conditioner outdoor unit will have proportional therewith capacity.
The one with multiple type air-conditioning of prior art is described below with reference to the accompanying drawings.
The one with multiple type air-conditioning of prior art as shown in Figure 1, be made of indoor set and off-premises station, and indoor set has several indoor heat exchangers 6,7,8 that are installed on indoor execution refrigerating/heating function; Off-premises station 20 has compressor 1, reservoir 4, four way valve 3, outdoor heat exchanger 5, a plurality of electric expansion valve 9～11 and lubricant separator 2.
Prior art air-conditioning with said structure is when heating operation, and the HTHP condensing agent flows into first to the 3rd indoor heat exchanger 6,7,8 by above-mentioned compressor 1 afterwards through lubricant separator 2 and four way valve 3.
At this moment, condensing agent flow into first to the 3rd indoor heat exchanger 6～8 of heating mode that the user requires, and from first to the 3rd indoor heat exchanger 6～8 outlets of high pressure condensing agent are exported.
The cut-out that the adjusting of the condensation dosage of at this moment above-mentioned first to the 3rd indoor heat exchanger 6～8 and condensing agent flow is adjusted by first to the 3rd electric expansion valve (LEV) 9～11.
These condensing agents expand by above-mentioned first to the 3rd electric expansion valve (LEV) 9～11, become the low dry condensing agent of low-temp low-pressure and flow through outdoor heat exchanger 5 in the off-premises station 20.
Just become cryogenic gas through above-mentioned outdoor heat exchanger 5, flow into compressor 1 through four way valve 3 and reservoir 4.
When carrying out as above-mentioned heating operation, the running frequency of above-mentioned compressor 1 is decided by temperature (TH5), output pressure (P) and the output temperature (TH6) etc. of indoor set capacity, indoor intake air temperature (TH4) and the temperature difference that is set by the user by the remote controller remote adjustment, off-premises station 2.
The degree of opening of above-mentioned first to the 3rd electronic expansion valve 9～11 of indoor set is decided by degree of supercooling during heating operation, and above-mentioned degree of supercooling is outlet one side temperature HT1 poor that output pressure is converted into the temperature of saturation temperature and first to the 3rd indoor heat converter 6～8.
The prior art air-conditioning that has as above-mentioned structure passes through the said engine oil separator, when use is stored in the oil circulation operation of above-mentioned reservoir, utilize above-mentioned reservoir internal condensation agent warm current to move through machine oil recovery holes (not shown) and reclaim naturally, be fed to compressor.
But owing to the low frequency operation or the inner foreign matter etc. that circulates, said engine oil recovery holes (not shown) can be stopped up when using above-mentioned compressor, can not be toward the sufficient machine oil of compressor inside supply.
This shows that above-mentioned existing one with multiple type air-conditioning obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem that one with multiple type air-conditioning exists, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing one with multiple type air-conditioning exists, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of air-conditioning with variable oil-supply function and control method thereof of new structure, can improve general existing one with multiple type air-conditioning, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
Main purpose of the present invention is; overcome the defective that existing one with multiple type air-conditioning exists; and a kind of new air-conditioning with variable oil-supply function and control method thereof, technical problem to be solved are provided is to make the unusual or machine oil of air-conditioning circular flow reclaim when problem is arranged and can be resolved.Thereby be suitable for practicality more.
Another object of the present invention is to, a kind of air-conditioning and control method thereof with variable oil-supply function is provided, technical problem to be solved is to make its reliability of guaranteeing compressor, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of air-conditioning according to the present invention's proposition with variable oil-supply function, the indoor set that has an off-premises station of compressor, reservoir, four way valve, outdoor heat exchanger and lubricant separator and have a plurality of indoor heat exchangers constitutes, and above-mentioned off-premises station comprises: because of the flow machine oil storage part of the storage said engine oil of additivity outside the machine oil return effect that takes place of the condensing agent in the above-mentioned reservoir; Adjusting is fed to first valve of the machine oil supply of above-mentioned compressor; Be stored in second valve of said engine oil storage part by the machine oil of said engine oil separator; Respond to the open/close off-premises station control part that is fed to the magnitude of current of above-mentioned compressor and controls above-mentioned first and second valve.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid air-conditioning with variable oil-supply function, wherein said machine oil storage part is made of the machine oil reservoir.
Aforesaid air-conditioning with variable oil-supply function, wherein said first valve is an electric expansion valve; Second valve is the spiral pipe valve.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to a kind of control method that has an off-premises station of compressor, reservoir, lubricant separator, machine oil storage part, first and second valve and have the air-conditioning of the variable oil-supply function that the indoor set of a plurality of indoor heat exchangers constitutes that the present invention proposes, it may further comprise the steps: induction is fed to the stage of the current value of above-mentioned compressor; Whether also with good grounds above-mentioned induced electricity flow valuve sets more than a reference value the open/close stage of the controlling above-mentioned first and second valve in order to change the oil level that is fed to above-mentioned compressor at it.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid control method with air-conditioning of variable oil-supply function, the open/close stage of wherein controlling above-mentioned first and second valve promptly is, above-mentioned induced electricity flow valuve its set a reference value when above above-mentioned second valve close and stage of above-mentioned first opening of valves and, above-mentioned induced electricity flow valuve its set a reference value when following above-mentioned first valve close and stage of second opening of valves.
Aforesaid control method with air-conditioning of variable oil-supply function, wherein said second valve cuts out and the stage of first opening of valves is, control the above-mentioned first valve degree of opening according to above-mentioned induced electricity flow valuve, the machine oil of said engine oil storage part is fed to the stage of above-mentioned compressor.
Aforesaid control method with air-conditioning of variable oil-supply function, wherein said first valve cuts out and the stage of second opening of valves promptly is, above-mentioned induced electricity flow valuve then is judged as the circulation running during scope under it sets a reference value stable, refuels for giving the said engine oil storage part in the stage of above-mentioned second opening of valves.
Via as can be known above-mentioned, the present invention comprises in the air conditioner structure wherein about a kind of air-conditioning and control method thereof with variable oil-supply function: an off-premises station with compressor, reservoir, four way valve, outdoor heat exchanger and lubricant separator; Indoor set with a plurality of indoor heat exchangers.And above-mentioned off-premises station comprises: except that the machine oil that takes place that flows because of the condensing agent in the above-mentioned reservoir returns the effect, also additivity is stored the machine oil storage part of machine oil; Adjustment is fed to first valve of the oil level of above-mentioned compressor; It is stored in second valve of said engine oil storage part by the machine oil of said engine oil separator; Induction is fed to the magnitude of current of above-mentioned compressor and controls the off-premises station control part of above-mentioned first, second valve open and close.If circular flow is unusual or just can address these problems during machine oil recovered oil problem, thereby improved compressor reliability, stable user's the satisfaction that just improved of loop start.
By technique scheme, air-conditioning and control method thereof that the present invention has the variable oil-supply function have following advantage at least:
1, the unusual or machine oil of circular flow reclaims when problem is arranged and can solve.
2, compressor oil-supplying is carried out smoothly, improve compressor reliability.
3, because the raising of compressor reliability and loop start are stable, can improve user satisfaction.
In sum, the present invention has the air-conditioning and the control method thereof of variable oil-supply function, makes the unusual or machine oil of air-conditioning circular flow reclaim when problem is arranged and can be resolved.And, can guarantee the reliability of compressor.It has above-mentioned many advantages and practical value, and in like product and control method, do not see have similar structural design and method to publish or use and really genus innovation, no matter it all has bigger improvement on product structure, control method or function, have large improvement technically, and produced handy and practical effect, and more existing one with multiple type air-conditioning has the multinomial effect of enhancement, thereby is suitable for practicality more, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the condensing agent circular chart of the air-conditioning of prior art.
Fig. 2 is the condensing agent circular chart of variable oil-supply function air-conditioning of the present invention.
Fig. 3 is the control structure block diagram of variable oil-supply function air-conditioning of the present invention.
Fig. 4 is the control method flow chart of variable oil-supply function air-conditioning of the present invention.
100: compressor 110: reservoir
120: lubricant separator 130: the machine oil storage part
142: the second valves of 141: the first valves
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to the air-conditioning with variable oil-supply function and its specific embodiment of control method, structure, control method, step, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
See also Fig. 2, Fig. 3, shown in Figure 4, wherein Fig. 2 is the cycle profile figure of air-conditioning of the present invention, and Fig. 3 is the control structure block diagram of air-conditioning of the present invention, and Fig. 4 is the control method flow chart of air-conditioning of the present invention.
Air-conditioning of the present invention with fuel feeding regulatory function as shown in Figure 2, is made of compressor 100, reservoir 110, lubricant separator 120, machine oil storage part 130, first and second valve 141,142.
Has air-conditioning as the fuel feeding regulatory function of the present invention of above-mentioned structure, the machine oil storage part has except that returning the effect because of the mobile machine oil that takes place of the condensing agent in the above-mentioned reservoir, also be to be additivity storage machine oil, its end is connected in the output of said engine oil separator 120, and the other end is connected in the input of above-mentioned compressor 1.
And, have first valve 141 of regulating above-mentioned compressor 100 suitable machine oil fuel deliveries between above-mentioned compressor 100 and the said engine oil storage part 130, connect between said engine oil separator 120 and the machine oil storage part 130 and regulate second valve 142 that refuels.
The circulation that has the said structure air-conditioning for control, as shown in Figure 3, be fed to the induction by current portion 121 of current class of above-mentioned compressor 100 and the current class by 121 inductions of above-mentioned induction by current portion according to induction, change the machine oil supply that is fed to above-mentioned compressor 100.
That is, when above-mentioned compressor 100 oil levels were not enough, the magnitude of current that is fed to above-mentioned compressor 100 just can increase.And, the current class of sensing by above-mentioned induction by current portion 121 is set a reference value when above at it, above-mentioned second valve cuts out, receive the supply magnitude of current feedback of above-mentioned compressor 100 and correspondingly open above-mentioned first valve, the machine oil fuel feeding that is stored in the said engine oil storage part to compressor.
And during above-mentioned compressor 100 stable operations, above-mentioned first valve just can cut out, second opening of valves.
Control method with air-conditioning of said structure, as shown in Figure 4, induction was fed to the current value (S101～S102) of compressor when at first the user imported the opening power order.
Judge then whether above-mentioned induced electricity flow valuve is set more than a reference value (S103) at it.
Through judged result (S103), above-mentioned induced electricity flow valuve is if set on a reference value at it, and second valve cuts out, first opening of valves (S104).
Above-mentioned in addition judged result (S103), if above-mentioned induced electricity flow valuve is set under a reference value at it, above-mentioned first valve cut out when circular flow was stablized, second opening of valves (S106).
The user imports power-off order constipation bundle (S105～S107).
As above-mentioned air-conditioning with variable oil-supply function and control method thereof, whether compressor oil is not enough, is fed to the current class of compressor by induction, is fed to the oil level of above-mentioned compressor according to current value change.
Above-mentioned the present invention as the method and structure formation has the air-conditioning of variable oil-supply function and the technological innovation of control method thereof, all has many saving graces for technical staff of the same trade now, and the progressive that possesses skills really.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (7)
1, a kind of air-conditioning with variable oil-supply function, the indoor set that has an off-premises station of compressor, reservoir, four way valve, outdoor heat exchanger and lubricant separator and have a plurality of indoor heat exchangers constitutes, and it is characterized in that above-mentioned off-premises station comprises: because of the flow machine oil storage part of the storage said engine oil of additivity outside the machine oil return effect that takes place of the condensing agent in the above-mentioned reservoir; Adjusting is fed to first valve of the machine oil supply of above-mentioned compressor; Be stored in second valve of said engine oil storage part by the machine oil of said engine oil separator; Respond to the open/close off-premises station control part that is fed to the magnitude of current of above-mentioned compressor and controls above-mentioned first and second valve.
2, the air-conditioning with variable oil-supply function according to claim 1 is characterized in that wherein said machine oil storage part is made of the machine oil reservoir.
3, the air-conditioning with variable oil-supply function according to claim 1 is characterized in that wherein said first valve is an electric expansion valve; Second valve is the spiral pipe valve.
4, a kind of control method that has an off-premises station of compressor, reservoir, lubricant separator, machine oil storage part, first and second valve and have the air-conditioning of the variable oil-supply function that the indoor set of a plurality of indoor heat exchangers constitutes, it is characterized in that it may further comprise the steps: induction is fed to the stage of the current value of above-mentioned compressor; Whether also with good grounds above-mentioned induced electricity flow valuve sets more than a reference value the open/close stage of the controlling above-mentioned first and second valve in order to change the oil level that is fed to above-mentioned compressor at it.
5, the control method with air-conditioning of variable oil-supply function according to claim 4, it is characterized in that the open/close stage of controlling above-mentioned first and second valve promptly is, above-mentioned induced electricity flow valuve its set a reference value when above above-mentioned second valve close and stage of above-mentioned first opening of valves and, above-mentioned induced electricity flow valuve its set a reference value when following above-mentioned first valve close and stage of second opening of valves.
6, the control method with air-conditioning of variable oil-supply function according to claim 5, it is characterized in that wherein said second valve cuts out and the stage of first opening of valves promptly is, control the above-mentioned first valve degree of opening according to above-mentioned induced electricity flow valuve, the machine oil of said engine oil storage part is fed to the stage of above-mentioned compressor.
7, the control method with air-conditioning of variable oil-supply function according to claim 5, it is characterized in that wherein said first valve cuts out and the stage of second opening of valves promptly is, above-mentioned induced electricity flow valuve then is judged as the circulation running during scope under it sets a reference value stable, refuels for giving the said engine oil storage part in the stage of above-mentioned second opening of valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410055135 CN1734217A (en) | 2004-08-09 | 2004-08-09 | Oil supply variable air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410055135 CN1734217A (en) | 2004-08-09 | 2004-08-09 | Oil supply variable air conditioner and control method thereof |
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| Publication Number | Publication Date |
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| CN1734217A true CN1734217A (en) | 2006-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410055135 Pending CN1734217A (en) | 2004-08-09 | 2004-08-09 | Oil supply variable air conditioner and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090606A (en) * | 2012-03-02 | 2013-05-08 | 台州朗讯机械有限公司 | Refrigerant oil replacement device for automotive air conditioner |
| CN108431520A (en) * | 2016-01-14 | 2018-08-21 | 三菱电机株式会社 | Refrigerating circulatory device |
| WO2021179250A1 (en) * | 2020-03-12 | 2021-09-16 | Johnson Controls Technology Company | Systems and methods for controlling variable refrigerant flow systems and equipment using artificial intelligence models |
-
2004
- 2004-08-09 CN CN 200410055135 patent/CN1734217A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090606A (en) * | 2012-03-02 | 2013-05-08 | 台州朗讯机械有限公司 | Refrigerant oil replacement device for automotive air conditioner |
| CN103090606B (en) * | 2012-03-02 | 2014-12-10 | 台州朗讯机械有限公司 | Refrigerant oil replacement device for automotive air conditioner |
| CN108431520A (en) * | 2016-01-14 | 2018-08-21 | 三菱电机株式会社 | Refrigerating circulatory device |
| WO2021179250A1 (en) * | 2020-03-12 | 2021-09-16 | Johnson Controls Technology Company | Systems and methods for controlling variable refrigerant flow systems and equipment using artificial intelligence models |
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