CN110186150A

CN110186150A - Progress control method, control device, air conditioner and computer readable storage medium

Info

Publication number: CN110186150A
Application number: CN201910472140.1A
Authority: CN
Inventors: 徐振坤; 杜顺开; 蔡志昇; 朱兴丹
Original assignee: Midea Group Co Ltd; Guangdong Midea Refrigeration Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2019-08-30
Anticipated expiration: 2039-05-31
Also published as: CN110186150B

Abstract

The present invention provides a kind of progress control method, operating control device, air conditioner and computer readable storage medium, progress control method include: obtain heat exchanger running parameter, and according to the running parameter judge the air conditioner whether operation irregularity；If it is determined that the air conditioner operation irregularity, then control the aperture for increasing the throttling set, so that cold medium flux increases according to first rate；Whether still the aperture of the throttling set increases to the first aperture, judge air conditioner operation irregularity；If the air conditioner still operation irregularity, continue to control the throttling set adjusting between first aperture and the second aperture, so that the cold medium flux increases according to the second rate, until detecting that the heat exchanger restores normal.According to the technical solution of the present invention, it not will increase preparation cost, and will not influence user to the normal use of air conditioner.

Description

Progress control method, control device, air conditioner and computer readable storage medium

Technical field

The present invention relates to air-conditioning technical fields, in particular to a kind of progress control method, a kind of operation control dress It sets, a kind of air conditioner and a kind of computer readable storage medium.

Background technique

Air conditioner at runtime, it is possible that many abnormal phenomenon, by taking heat exchanger as an example, it may appear that high load capacity, it is low negative Phenomena such as lotus and frosting, although having had corresponding solution, above-mentioned solution usually requires to carry out bypass-unloading or straight Frequency reducing shutdown is connect, causes to have the following deficiencies:

(1) bypass-unloading will lead to the increase of preparation cost；

(2) refrigeration or heating effect that will affect air conditioner are shut down.

Summary of the invention

The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.

For this purpose, it is an object of the present invention to provide a kind of progress control methods.

It is another object of the present invention to provide a kind of air conditioners.

It is another object of the present invention to provide a kind of computer readable storage mediums.

To achieve the above object, the technical solution of first aspect present invention provides a kind of progress control method, is suitable for Air conditioner, the progress control method includes: the running parameter for obtaining heat exchanger, and judges the sky according to the running parameter Adjust device whether operation irregularity；If it is determined that the air conditioner operation irregularity, then control the aperture for increasing the throttling set, so that cold Matchmaker's flow increases according to first rate；Still whether the aperture of the throttling set increases to the first aperture, judge the air conditioner Operation irregularity；If the air conditioner still operation irregularity, continues to control the throttling set and be opened in first aperture with second It is adjusted between degree, so that the cold medium flux increases according to the second rate, until detect that the heat exchanger restores normal, In, second rate is greater than the first rate, and the corresponding cold medium flux of second aperture is corresponding with first aperture Cold medium flux between ratio be greater than or equal to 3.34, and be less than or equal to 100.

In the present solution, determining it is different whether air conditioner occurs in the process of running by the running parameter for obtaining heat exchanger Often, on the one hand, it is advantageously implemented and carries out simple and reliable monitoring to the abnormal phenomenon occurred in air conditioner operational process, it is another Aspect, it is abnormal existing to exclude or alleviate by controlling to adjust the aperture of throttling set after determining that air conditioner has operation exception As, wherein the aperture before will test air conditioner operation irregularity is determined as initial opening, i.e., is opened since initial opening Degree is adjusted, and the adjusting of throttling set aperture includes at least two stages, is the first stage from initial opening to the first aperture, It is second stage from the first aperture to the second aperture, first stage cold medium flux is increased with first rate, second stage refrigerant stream For amount with the increase of the second rate, the second rate is greater than first rate, and the corresponding cold medium flux of the second aperture and the first aperture pair The ratio between cold medium flux answered is between [3.34,100], on the one hand, can not after increasing cold medium flux with first rate When solving or alleviating current abnormal problem, can by the aperture of throttling set is further adjusted with the second rate solution or Alleviate abnormal problem, on the other hand, compared with the solution of the relevant technologies, does not need that the side for executing unloading operation is separately provided Road, therefore not will increase preparation cost, in another aspect, do not need to execute shutdown operation compared with the solution of the relevant technologies, Therefore it will not influence the normal use of user.

Wherein, those skilled in the art can understand that, in the aperture by adjusting throttling set, make cold medium flux Increased respectively with first rate and the second rate, it can be real by carrying out accurate control to the throttling set with specified structure It is existing, for example, the circulation area of throttling set is using the first aperture as critical point, before reaching the first aperture with first rate pair The third speed answered continues to increase the circulation area of refrigerant in throttling set, increases the refrigerant stream for flowing through throttling set to realize Amount, so that the pressure drop before and after reducing throttling set, is mutated in the first aperture, held with fourth rate corresponding with the second rate The continuous circulation area for increasing refrigerant in throttling set increases the cold medium flux for flowing through throttling set to realize, to further subtract Pressure drop before and after few throttling set, can also improve realization, for example open reaching first to the control mode of aperture step number When spending, the amplitude of each aperture increases, to realize the mutation of cold medium flux amplification.

Those skilled in the art is also understood that, can also be into after limiting first rate and the second rate One step limits the regulations speed bigger than the second rate, further to shorten the regulating time of throttling set.

In addition, throttling set is specifically as follows throttle valve.

In above-mentioned technical proposal, optionally, the corresponding cold medium flux of second aperture is corresponding with first aperture Ratio between cold medium flux is greater than or equal to 3.35, and is less than or equal to 30.

In the present solution, above-mentioned between the corresponding cold medium flux of the second aperture cold medium flux corresponding with the first aperture Ratio be defined on the basis of, further decrease range belonging to ratio, on the one hand, by increase lower threshold (from 3.34 increase to the accuracy for 3.35) being able to ascend control, on the other hand, by reducing upper limit threshold (being decreased to 30 from 100), To reduce the difficulty of control.

In above-mentioned technical proposal, optionally, the air conditioner be additionally provided with respectively with the First Heat Exchanger and described the Two change hot linked compressor, if it is determined that the air conditioner operation irregularity, the progress control method further include: control the pressure Contracting machine executes frequency redution operation.

In the present solution, determining air conditioner operation irregularity, and while throttling set is adjusted, compressor is held Row frequency redution operation carries out frequency redution operation to compressor to reduce the heat exchange amount of heat exchanger, when specially adjusting compressor is run Revolving speed realizes the variation of flow by rotational speed regulation, has the function that adjust load, so as to pass through by adjusting load The operation of the aperture regulation of throttling set and throttling set is combined, to get to elimination or alleviate the abnormal work based on heat exchanger The abnormal phenomenon that parameter detecting arrives.

It is optionally, described to obtain the running parameter of heat exchanger in above-mentioned technical proposal, and sentenced according to the running parameter Whether the air conditioner that breaks is before operation irregularity, further includes: and the aperture of the throttling set is obtained, and is determined as initial opening, institute Initial opening is stated less than first aperture, first aperture is greater than or equal to 150 steps, and is less than or equal to 400 steps, so that Cold medium flux increases between the initial opening and first aperture according to the first rate, wherein described initial Under aperture, the cold medium flux is less than or equal to 8L/min.

In the present solution, initial opening be in the related technology control air conditioner operate normally throttle valve aperture, namely Initial opening in the application in the adjusting method of throttle valve, by limiting the range of initial opening, to meet air conditioner just Often operation further by the way that the range of the first aperture to be limited between [150,400] step, can give the tune of first stage Section process (increasing cold medium flux with first rate), which provides, adequately adjusts space, if it is possible to disappear when reaching the first aperture Except air conditioner operation irregularity, then can be operated without subsequent adjusting.

Wherein, the median of the preferred above range of the opening value of the first aperture and initial opening.

Specifically, by limiting initial opening, the first aperture and the second aperture, between initial opening and the first aperture, Throttling set can be adjusted with first rate, and between the first aperture and the second aperture, throttling set can be with the second rate tune Section, wherein initial opening can be understood as minimum aperture when throttling set work, with corresponding minimum cold medium flux, Jin Erben The operation control program limited in application can be suitable for shutting the scene that (such as one drag more) has certain flow with minimum aperture (inexpensive one-to-one).

Wherein, initial opening is specifically as follows less than the first aperture, the range of initial opening greater than 0 and less than 150 steps.? During air conditioner conventional operation, initial opening can be less than for greater than 0 and less than or equal to 100 steps with corresponding to cold medium flux Or it is equal to 8L/min.In above-mentioned technical proposal, optionally, if the air conditioner still operation irregularity, continue to control the throttling Device is adjusted between first aperture and the second aperture, is specifically included: continuing to control the throttling set according to default increasing Width range is adjusted between first aperture and second aperture, and the default amplification range is greater than or equal to 50 steps, and Less than or equal to 350 steps.

In the present solution, if increasing cold medium flux, the increasing of the aperture of corresponding control throttling set with the second rate control Width range is between [50,350], on the one hand, can guarantee to can be realized air conditioner by adjusting throttling set in the range The elimination or alleviation of abnormal phenomenon, on the other hand, the excessive performance to air conditioner of aperture amplification for being also prevented from throttling set causes Negative effect.

In above-mentioned technical proposal, optionally, if the air conditioner still operation irregularity, continue to control the throttling dress It sets and is adjusted between first aperture and the second aperture, so that the cold medium flux increases according to the second rate, specifically included: The cold medium flux is increased to according to second rate less than or equal to target flow, wherein the target flow is described The corresponding cold medium flux of second aperture, the target flow are determined according to the specified heat exchange amount of the air conditioner.

In the present solution, upper limit value by limiting flow of the refrigerant under the second aperture, can guarantee air conditioner just Often operation, by limiting target flow, in general, and under the premise of cold medium flux is less than or equal to target flow, energy Enough meeting the needs of solving air conditioner operation irregularity, wherein target flow is determining according to the specified heat exchange amount of the air conditioner, with While solving the problems, such as air conditioner operation irregularity, guarantee is normally carried out indoor refrigeration or heating operation, and then can protect Demonstrate,prove the comfort level that user uses air conditioner.

Wherein, different air conditioner types have different exchange capability of heat, exchange capability of heat can by specified heat exchange amount come It indicates, for example air conditioner is 35 grades, rated cooling capacity 3500W is referred to as 1.5HP.

Specifically, in cooling mode, specified heat exchange amount is rated cooling capacity, for example rated cooling capacity is 4500W or low In 4500W, then at this time corresponding target flow be 70L/min, if rated cooling capacity in 4500W between 14000W, correspond to Target flow be 80L/min.

In above-mentioned technical proposal, optionally, the running parameter for obtaining heat exchanger, and judged according to the running parameter The air conditioner whether operation irregularity, specifically include: obtaining the coil temperature of the heat exchanger, to be sentenced according to the coil temperature The air conditioner that breaks whether operation irregularity；And/or the operating pressure of the heat exchanger is obtained, to be judged according to the operating pressure The air conditioner whether operation irregularity.

In above-mentioned technical proposal, optionally, the coil temperature for obtaining the heat exchanger, according to the coil temperature Judge the air conditioner whether operation irregularity, specifically include: obtaining the first coil temperature and the institute of the First Heat Exchanger respectively State the second coil temperature of the second heat exchanger；If it is different to determine that the First Heat Exchanger is in pressure according to first coil temperature Normal state, it is determined that the First Heat Exchanger operation irregularity；If determining second heat exchanger according to second coil temperature In pressure anomaly state, it is determined that the second heat exchanger operation irregularity.

In the present solution, as a kind of manifestation mode that air-conditioner system is operating abnormally, heat exchanger will appear pressure anomaly Phenomenon, for example if the temperature of heat exchanger tube temperature is excessively high, will lead to the hypertonia in heat exchanger, hypertonia in heat exchanger It not only will affect the normal operation of air conditioner, also will affect the normal service life of heat exchanger, therefore heat exchanger is generated into high pressure Phenomenon is determined as air conditioner and operation irregularity occurs, in addition, if coolant quantity deficiency causes heat exchanger generation low pressure existing in heat exchanger As it is too low to will lead to heat exchanger tube temperature at this time, is also determined as air conditioner and operation irregularity occurs.

In above-mentioned technical proposal, optionally, the First Heat Exchanger is indoor heat exchanger, and second heat exchanger is outdoor Heat exchanger, the coil temperature for obtaining the heat exchanger, to judge whether the air conditioner works according to the coil temperature Abnormal, specifically include: the air conditioner is in heating mode, obtains the coil temperature of second heat exchanger, if described second The coil temperature of heat exchanger is less than or equal to freezing point temperature, then determines that second heat exchanger has frosting risk, and determine institute State the second heat exchanger operation irregularity.

In the present solution, air conditioner is in heating mode, if detecting, outdoor heat exchanger, can also be with there are frosting risk It determines that air-conditioner system is operating abnormally, opens alleviation frost by adjusting the aperture of throttling set at this time, and defrost is combined to grasp Work makes air conditioner restore normal condition, and then realizes the defrosting function under low cost.

In above-mentioned technical proposal, optionally, if the air conditioner still operation irregularity, continue to control the throttling dress It sets and is adjusted between first aperture and the second aperture, so that the cold medium flux increases according to the second rate, until detection Restore normal to the heat exchanger, specifically further include: make the cold medium flux according to the second rate increase after, control is opened Dynamic defrosting operation, until detecting that the heat exchanger restores normal.

In the present solution, while control increases the aperture of throttling set, control is opened if detecting the presence of defrost risk Dynamic defrosting operation, realizes the simple and reliable control process of defrosting operation.

In above-mentioned technical proposal, optionally, the air conditioner further includes the four-way valve for adjusting refrigerant flow direction, if described Determine the air conditioner operation irregularity, then the aperture for increasing the throttling set is controlled, so that cold medium flux is according to first rate Increase, specifically include: if it is determined that second heat exchanger has frosting risk, then obtaining outside humidity, outdoor temperature, Indoor Temperature Degree and air conditioner operation duration；According to the outside humidity, the outdoor temperature, the room temperature and the operation duration Determine frosting metric；Judge the relationship between the frosting metric and frosting threshold value；If the frosting metric is greater than institute Frosting threshold value is stated, then the four-way valve regulation refrigerant flow direction is controlled, and control the aperture for increasing the throttling set, so that refrigerant Flow increases according to the first rate, to execute commutation defrosting operation.

In the present solution, by further obtaining outside humidity, outdoor temperature and room temperature, with based on outside humidity, Outdoor temperature determines frosting metric with room temperature, and frosting metric is used to measure the degree of frosting, in conjunction with preset knot White threshold value determines specific defrost mode, to obtain good defrosting effect, wherein if frosting metric is greater than frosting threshold Value, shows that frosting degree is more serious, changes refrigerant flow direction by adjusting four-way valve at this time, to execute commutation defrosting operation, is not required to Defrosting operation can be completed in the adjusting for carrying out the heat-exchanger rig of big aperture.

Specifically, outside humidity is bigger, and outdoor temperature is lower, and the temperature difference between room temperature and outdoor temperature is got over It is small, then show that clearing amount is bigger, is further compared to determine specific defrost mode with preset frosting threshold value, to guarantee To preferable defrosting effect, and then user can not be influenced to the normal use of air conditioner.

In above-mentioned technical proposal, optionally, further includes: if the frosting metric is less than or equal to the frosting threshold value, Current refrigerant is then maintained to flow to, and the aperture for controlling the throttling set increases to greater than or is equal to first aperture, and small In or be equal to second aperture, to execute defrosting operation.

In the present solution, showing the lesser extent of current frosting, at this time if frosting metric is less than or equal to frosting threshold value It can continue to run in a heating mode, so as to guarantee to be not disrupted indoor heating operation, further, throttling is filled The aperture set first is adjusted to the first aperture, with further control increases aperture on the basis of the first aperture, is needed with completing defrost It asks.

In above-mentioned technical proposal, optionally, the throttling set includes valve seat and is moved back and forth by excitation con-trol Needle offers the throttle orifice with needle cooperation on the valve seat, cold to be limited by the needle with the throttle orifice The circulation area of matchmaker, wherein the aperture for controlling the throttling set increases to the first aperture, and the circulation area is according to third speed Rate increases, and from first aperture, the circulation area increases according to fourth rate, the corresponding stream of second aperture Ratio cold medium flux corresponding with second aperture between logical area and the corresponding circulation area of first aperture Ratio between cold medium flux corresponding with first aperture is identical.

Wherein, third speed is that corresponding with first rate refrigerant circulation area being advanced the speed, and fourth rate is and the The corresponding refrigerant circulation area of two rates is advanced the speed.

When in the present solution, being adjusted to realize throttling set between the first aperture and the first aperture, cold medium flux root Increase according to first rate, when adjusting more than the first aperture, cold medium flux increases according to the second rate, can be by limiting by saving The circulation area of the refrigerant limited between discharge orifice and needle is realized, i.e., when being adjusted between the first aperture and the first aperture, stream Logical area is increased with third speed, and when continuing to adjust on the basis of the first aperture, circulation area is increased with fourth rate, and the 4th Rate/third speed=the second rate/first rate, and then realize cold medium flux with different rates by adjusting circulation area It adjusts.

In above-mentioned technical proposal, optionally, the free end of the needle includes cone structure, frustum cone structure and convex arc Any one in the structure of face；The structure connecting with the free end is frustum cone structure, and the frustum cone structure is one or more A, the bus of the frustum cone structure is configured to straight line and/or camber line, and the taper of the free end is greater than the frustum cone structure Taper, wherein if the aperture of throttling set increases to first aperture, the free end and the frustum cone structure connect Junction and the throttle orifice limit the circulation area.

In the present solution, can be realized the needle of above-mentioned rate adaptation has multiple structural forms, by needle structure Restriction, realize adjusting to circulation area when adjusting aperture, be in different adjustings to meet cold medium flux in throttling set It when section, is adjusted by different regulations speeds, and then can efficiently solve the problems, such as that air conditioner is operating abnormally.

In above-mentioned technical proposal, optionally, if the air conditioner still operation irregularity, continue to control the throttling dress Set and adjusted between first aperture and the second aperture, specifically included: if refrigerant along the needle direction flow into, and along with The vertical direction outflow of the needle, then continue to control the throttling set adjusting between first aperture and the second aperture Excitation speed be less than or equal to 90pps；If refrigerant is flowed into along the direction vertical with the needle, and along the direction of the needle Outflow, then continue to control the excitation speed that the throttling set is adjusted between first aperture and the second aperture and be greater than or wait In 30pps.

In the present solution, being in by control excitation speed in the range of limiting, when refrigerant is in different and flows to full The demand for control of sufficient throttling set.

The technical solution of second aspect of the present invention provides a kind of operating control device, is suitable for air conditioner, comprising: processing Device, the processor can be realized when executing computer program: obtain the running parameter of heat exchanger, and according to the running parameter Judge the air conditioner whether operation irregularity；If it is determined that the air conditioner operation irregularity, then control and increase the throttling set Aperture, so that cold medium flux increases according to first rate；The aperture of the throttling set increases to the first aperture, judges the sky Adjust device whether still operation irregularity；If the air conditioner still operation irregularity, continues to control the throttling set and be opened described first It is adjusted between degree and the second aperture, so that the cold medium flux increases according to the second rate, until detecting that the heat exchanger is extensive It is multiple normal, wherein second rate is greater than the first rate, the corresponding cold medium flux of second aperture and described first Ratio between the corresponding cold medium flux of aperture is greater than or equal to 3.34, and is less than or equal to 100.

In addition, throttling set is specifically as follows throttle valve.

In above-mentioned technical proposal, optionally, the air conditioner be additionally provided with respectively with the First Heat Exchanger and described the Two change hot linked compressor, and processor is specifically used for: controlling the compressor and execute frequency redution operation.

Wherein, initial opening is specifically as follows less than the first aperture, the range of initial opening greater than 0 and less than 150 steps.? During air conditioner conventional operation, initial opening can be less than for greater than 0 and less than or equal to 100 steps with corresponding to cold medium flux Or it is equal to 8L/min.

In above-mentioned technical proposal, optionally, processor is specifically used for: continuing to control the throttling set according to default increasing Width range is adjusted between first aperture and second aperture, and the default amplification range is greater than or equal to 50 steps, and Less than or equal to 350 steps.

In above-mentioned technical proposal, optionally, processor is specifically used for: the cold medium flux increases according to second rate It adds to and is less than or equal to target flow, wherein the target flow is the corresponding cold medium flux of second aperture, the target Flow is determined according to the specified heat exchange amount of the air conditioner.

In above-mentioned technical proposal, optionally, processor is specifically used for: the coil temperature of the heat exchanger is obtained, with basis The coil temperature judge the air conditioner whether operation irregularity；And/or the operating pressure of the heat exchanger is obtained, according to institute State operating pressure judge the air conditioner whether operation irregularity.

In above-mentioned technical proposal, optionally, processor is specifically used for: obtaining the first disk of the First Heat Exchanger respectively Second coil temperature of tube temperature degree and second heat exchanger；If determining the First Heat Exchanger according to first coil temperature In pressure anomaly state, it is determined that the First Heat Exchanger operation irregularity；If according to second coil temperature determination Second heat exchanger is in pressure anomaly state, it is determined that the second heat exchanger operation irregularity.

In above-mentioned technical proposal, optionally, the First Heat Exchanger is indoor heat exchanger, and second heat exchanger is outdoor Heat exchanger, processor are specifically used for: the air conditioner is in heating mode, obtains the coil temperature of second heat exchanger, if The coil temperature of second heat exchanger is less than or equal to freezing point temperature, then determines that second heat exchanger has frosting risk, And determine the second heat exchanger operation irregularity.

In above-mentioned technical proposal, optionally, processor is specifically used for: keeping the cold medium flux fast according to described second After rate increase, control starting defrosting operation, until detecting that the heat exchanger restores normal.

In above-mentioned technical proposal, optionally, the air conditioner further includes the four-way valve for adjusting refrigerant flow direction, processing Device is specifically used for: if it is determined that second heat exchanger has frosting risk, then obtaining outside humidity, outdoor temperature, indoor temperature With air conditioner operation duration；It is true according to the outside humidity, the outdoor temperature, the room temperature and the operation duration Determine frosting metric；Judge the relationship between the frosting metric and frosting threshold value；If the frosting metric is greater than described Frosting threshold value then controls the four-way valve regulation refrigerant flow direction, and controls the aperture for increasing the throttling set, so that refrigerant stream Amount increases according to the first rate, to execute commutation defrosting operation.

In above-mentioned technical proposal, optionally, processor is specifically used for: if the frosting metric is less than or equal to described Frosting threshold value then maintains current refrigerant to flow to, and the aperture for controlling the throttling set increases to greater than or be equal to described first Aperture, and it is less than or equal to second aperture, to execute defrosting operation.

In above-mentioned technical proposal, optionally, processor is specifically used for: if if refrigerant along the needle direction flow into, and It is flowed out along the direction vertical with the needle, then continues to control the throttling set between first aperture and the second aperture The excitation speed of adjusting is less than or equal to 90pps；If refrigerant is flowed into along the direction vertical with the needle, and along the needle Direction outflow, then continue to control the excitation speed that the throttling set is adjusted between first aperture and the second aperture and be greater than Or it is equal to 30pps.

The technical solution of third aspect present invention provides a kind of air conditioner, comprising: the technical solution of above-mentioned second aspect The operating control device of offer.

Wherein, air conditioner can be split air conditioner, or package AC plant.

The computer readable storage medium that the embodiment of fourth aspect present invention provides, is stored thereon with computer program, The step of computer program is performed, and realizes progress control method described in any of the above-described technical solution.

Additional aspect and advantage of the invention will provide in following description section, will partially become from the following description Obviously, or practice through the invention is recognized.

Detailed description of the invention

Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:

Fig. 1 shows the schematic flow diagram of progress control method according to an embodiment of the invention；

Fig. 2 shows cold medium flux characteristic curve schematic diagrames according to an embodiment of the invention；

Fig. 3 shows the schematic flow diagram of progress control method according to another embodiment of the invention；

Fig. 4 shows the schematic flow diagram of the progress control method of still another embodiment in accordance with the present invention；

Fig. 5 shows the schematic flow diagram of progress control method according to still another embodiment of the invention；

Fig. 6 shows the schematic diagram of the circulation area of throttling set according to an embodiment of the invention；

Fig. 7 shows the structural schematic diagram of throttling set according to an embodiment of the invention；

Fig. 8 shows the structural schematic diagram of throttling set according to another embodiment of the invention；

Fig. 9 shows the structural schematic diagram of the throttling set of still another embodiment in accordance with the present invention；

Figure 10 shows refrigerant according to an embodiment of the invention and flows to schematic diagram in throttling set；

Figure 11 shows the schematic block diagram of operating control device according to an embodiment of the invention；

Figure 12 shows the schematic configuration diagram of air conditioner according to an embodiment of the invention；

Figure 13 shows the schematic configuration diagram of air conditioner according to another embodiment of the invention

Specific embodiment

To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, implementation of the invention Feature in example and embodiment can be combined with each other.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

As described in Figure 1, the progress control method of embodiment according to the present invention is suitable for air conditioner, the operation control Method includes:

Step 102: obtaining the running parameter of heat exchanger, and judge whether the air conditioner works according to the running parameter It is abnormal；

Step 104, if it is determined that the air conditioner operation irregularity, then control the aperture for increasing the throttling set, so that cold Matchmaker's flow increases according to first rate；

Step 106, the aperture of the throttling set increases to the first aperture, and it is different to judge whether the air conditioner still works Often；

Step 108, if the air conditioner still operation irregularity, continue to control the throttling set first aperture with It is adjusted between second aperture, so that the cold medium flux increases according to the second rate, until detecting that the heat exchanger restores just Often, wherein second rate is greater than the first rate, the corresponding cold medium flux of the second aperture and first aperture Ratio between corresponding cold medium flux is greater than or equal to 3.34, and is less than or equal to 100.

In the present embodiment, determine whether air conditioner occurs in the process of running by obtaining the running parameter of heat exchanger It is abnormal, on the one hand, to be advantageously implemented and carry out simple and reliable monitoring to the abnormal phenomenon occurred in air conditioner operational process, separately On the one hand, abnormal to exclude or alleviate by controlling to adjust the aperture of throttling set after determining that air conditioner has operation exception Phenomenon, wherein the aperture before will test air conditioner operation irregularity is determined as initial opening, i.e., carries out since initial opening Aperture regulation, and the adjusting of throttling set aperture includes at least two stages, is the first rank from initial opening to the first aperture Section is second stage from the first aperture to the second aperture, and first stage cold medium flux is increased with first rate, second stage refrigerant Flow is increased with the second rate, and the second rate is greater than first rate, and the corresponding cold medium flux of the second aperture and the first aperture Ratio between corresponding cold medium flux is between [3.34,100], on the one hand, the nothing after increasing cold medium flux with first rate It, can be by further adjusting solution with aperture of second rate to throttling set when method solves or alleviates current abnormal problem Or alleviate abnormal problem, on the other hand, compared with the solution of the relevant technologies, do not need that execution unloading operation is separately provided Bypass, therefore not will increase preparation cost, in another aspect, not needing to execute and shutting down behaviour compared with the solution of the relevant technologies Make, therefore will not influence the normal use of user.

In addition, throttling set is specifically as follows throttle valve.

In above-described embodiment, optionally, the corresponding cold medium flux of the second aperture and first aperture are corresponding cold Ratio between matchmaker's flow is greater than or equal to 3.35, and is less than or equal to 30.

In the present embodiment, it is above-mentioned to the corresponding cold medium flux of the second aperture cold medium flux corresponding with the first aperture it Between ratio be defined on the basis of, further decrease range belonging to ratio, on the one hand, by increase lower threshold (from 3.34 increase to the accuracy for 3.35) being able to ascend control, on the other hand, by reducing upper limit threshold (being decreased to 30 from 100), To reduce the difficulty of control.

In above-described embodiment, optionally, the air conditioner be additionally provided with respectively with the First Heat Exchanger and described second Hot linked compressor is changed, if it is determined that the air conditioner operation irregularity, the progress control method further include: control the compression Machine executes frequency redution operation.

In the present embodiment, while determining air conditioner operation irregularity, and throttling set is adjusted, to compressor Frequency redution operation is executed, to reduce the heat exchange amount of heat exchanger, frequency redution operation is carried out to compressor, when specially adjusting compressor is run Revolving speed, by rotational speed regulation realize flow variation, have the function that adjust load, so as to by adjust load, lead to The aperture regulation operation for crossing throttling set and throttling set is combined, to get to elimination or alleviate the abnormal work based on heat exchanger The abnormal phenomenon arrived as parameter detecting.

It is optionally, described in the running parameter for obtaining heat exchanger in above-described embodiment, and judged according to the running parameter Whether the air conditioner is before operation irregularity, further includes: and the aperture of the throttling set is obtained, and is determined as initial opening, it is described Initial opening is less than first aperture, and first aperture is greater than or equal to 150 steps, and is less than or equal to 400 steps, so that cold Matchmaker's flow increases between the initial opening and first aperture according to the first rate, wherein initially opens described Under degree, the cold medium flux is less than or equal to 8L/min.

In the present embodiment, initial opening is the aperture for the throttle valve that control air conditioner operates normally in the related technology, Initial opening i.e. in the application in the adjusting method of throttle valve, by limiting the range of initial opening, to meet air conditioner It operates normally, it further, can be to the first stage by the way that the range of the first aperture to be limited between [150,400] step Adjustment process (increasing cold medium flux with first rate), which provides, adequately adjusts space, if it is possible to when reaching the first aperture Air conditioner operation irregularity is eliminated, then can be operated without subsequent adjusting.

In above-described embodiment, optionally, if the air conditioner still operation irregularity, continue to control the throttling set in institute It states and is adjusted between the first aperture and the second aperture, specifically included: continuing to control the throttling set and existed according to default amplification range It is adjusted between first aperture and second aperture, the default amplification range is greater than or equal to 50 steps, and is less than or waits In 350 steps.

In the present embodiment, if increasing cold medium flux with the second rate control, the aperture of corresponding control throttling set Amplification range is between [50,350], on the one hand, can guarantee to can be realized air-conditioning by adjusting throttling set in the range The elimination or alleviation of device abnormal phenomenon, on the other hand, the excessive performance to air conditioner of aperture amplification for being also prevented from throttling set is made At negative effect.

In above-described embodiment, optionally, if the air conditioner still operation irregularity, continues to control the throttling set It adjusts between first aperture and the second aperture, so that the cold medium flux increases according to the second rate, specifically includes: institute It states cold medium flux to be increased to according to second rate less than or equal to target flow, wherein the target flow is described the The corresponding cold medium flux of two apertures, the target flow are determined according to the specified heat exchange amount of the air conditioner.

In the present embodiment, by limiting the upper limit value of flow of the refrigerant under the second aperture, it can guarantee air conditioner It operates normally, by limiting target flow, in general, under the premise of cold medium flux is less than or equal to target flow, Can satisfy the demand for solving air conditioner operation irregularity, wherein target flow is determining according to the specified heat exchange amount of the air conditioner, With while solving the problems, such as air conditioner operation irregularity, guarantee is normally carried out indoor refrigeration or heating operation, and then can Guarantee that user uses the comfort level of air conditioner.

In above-described embodiment, optionally, the running parameter for obtaining heat exchanger, and institute is judged according to the running parameter State air conditioner whether operation irregularity, specifically include: obtaining the coil temperature of the heat exchanger, with according to the coil temperature judge The air conditioner whether operation irregularity；And/or the operating pressure of the heat exchanger is obtained, to judge institute according to the operating pressure State air conditioner whether operation irregularity.

Fig. 2 shows the rating curve feature with two sections or more, and average flow rate between exv0~exv1 Rate of change (i.e. first rate) is less than the average flow rate rate of change (i.e. the second rate) between exv1~exv2.

Wherein, exv0 is initial opening, and exv1 is the first aperture, and exv2 is the second aperture, the corresponding refrigerant of the second aperture Ratio between flow cold medium flux corresponding with the first aperture is to see k, then has a Q2=k*Q1, k value range 3.34~100, Preferably 3.35~30.

In addition, the cold medium flux in the case where throttling set leads to 0.1MPa needs to meet: 0L/min≤Q0≤8L/min, in addition, pressing The rated cooling capacity of room air conditioner divides: 4500W Q2 >=70L/min below；Q2 >=80L/min of 4500W~14000W

Preferably, flow takes selection median.

Further, there is also following relationships between cold medium flux and aperture:

0 step≤exv0≤100 steps；150 steps≤exv1≤400 steps；50 steps≤exv2-exv1≤350 steps.

In above-described embodiment, optionally, the coil temperature for obtaining the heat exchanger, to be sentenced according to the coil temperature The air conditioner that breaks whether operation irregularity, specifically include: obtain respectively the first coil temperature of the First Heat Exchanger with it is described Second coil temperature of the second heat exchanger；If determining that the First Heat Exchanger is in pressure anomaly according to first coil temperature State, it is determined that the First Heat Exchanger operation irregularity；If being determined at second heat exchanger according to second coil temperature In pressure anomaly state, it is determined that the second heat exchanger operation irregularity.

In the present embodiment, a kind of manifestation mode being operating abnormally as air-conditioner system, it is different that heat exchanger will appear pressure It often occurs as example if the temperature of heat exchanger tube temperature is excessively high, will lead to the hypertonia in heat exchanger, pressure mistake in heat exchanger Height not only will affect the normal operation of air conditioner, also will affect the normal service life of heat exchanger, therefore heat exchanger is generated height Pressure phenomenon is determined as air conditioner and operation irregularity occurs, in addition, if coolant quantity deficiency causes heat exchanger to generate low pressure in heat exchanger Phenomenon, it is too low to will lead to heat exchanger tube temperature at this time, is also determined as air conditioner and operation irregularity occurs.

As shown in figure 3, the progress control method in the application is described by taking heat exchanger high-voltage exception or ultra-low pressure as an example, Include:

Step 302, booting operation；

Step 304, the coil temperature of outdoor heat exchanger and/or the coil temperature of indoor heat exchanger are detected, to judge to exchange heat Whether device there is High Abnormal Pressure or ultra-low pressure；

Step 306, if detecting High Abnormal Pressure or ultra-low pressure, compressor frequency reducing is controlled, and by the aperture of throttling set First aperture is adjusted to by initial opening, and further judge High Abnormal Pressure or ultra-low pressure whether there are still；

Step 308, if there are still further increase out on the basis of the first aperture for High Abnormal Pressure or ultra-low pressure Degree, and further judge High Abnormal Pressure or ultra-low pressure whether there are still.

In above-described embodiment, optionally, the First Heat Exchanger is indoor heat exchanger, and second heat exchanger changes for outdoor Hot device, the coil temperature for obtaining the heat exchanger are different to judge whether the air conditioner works according to the coil temperature Often, specifically include: the air conditioner is in heating mode, the coil temperature of second heat exchanger is obtained, if described second changes The coil temperature of hot device is less than or equal to freezing point temperature, then determines that second heat exchanger has frosting risk, and described in determination Second heat exchanger operation irregularity.

In the present embodiment, air conditioner is in heating mode, if detecting, outdoor heat exchanger, can also there are frosting risk To determine that air-conditioner system is operating abnormally, alleviation frost is opened by adjusting the aperture of throttling set at this time, and combine defrost Operation makes air conditioner restore normal condition, and then realizes the defrosting function under low cost.

In above-described embodiment, optionally, if the air conditioner still operation irregularity, continues to control the throttling set It is adjusted between first aperture and the second aperture, so that the cold medium flux increases according to the second rate, until detecting The heat exchanger restores normal, specifically further include: make the cold medium flux according to the second rate increase after, control starting Defrosting operation, until detecting that the heat exchanger restores normal.

In the present embodiment, if detecting the presence of defrost risk, while control increases the aperture of throttling set, control Start defrosting operation, realizes the simple and reliable control process of defrosting operation.

As shown in figure 4, describing the progress control method in the application by taking heat exchanger frosting as an example, comprising:

Step 402, booting operation heating mode；

Do not walk 404, detect the coil temperature of outdoor heat exchanger, with judge outdoor heat exchanger whether frosting；

Step 406, if detecting frosting, the aperture of throttling set is quickly adjusted to the first aperture by initial opening, and The coil temperature of outdoor heat exchanger is acquired, further to detect whether frosting is alleviated；

Step 408, if detecting, frosting without alleviation, is gradually increased aperture, and entranceization on the basis of the first aperture White mode.

In above-described embodiment, optionally, the air conditioner further includes the four-way valve for adjusting refrigerant flow direction, if described sentence The fixed air conditioner operation irregularity, then control the aperture for increasing the throttling set, so that cold medium flux increases according to first rate Add, specifically include: if it is determined that second heat exchanger has frosting risk, then obtaining outside humidity, outdoor temperature, indoor temperature With air conditioner operation duration；It is true according to the outside humidity, the outdoor temperature, the room temperature and the operation duration Determine frosting metric；Judge the relationship between the frosting metric and frosting threshold value；If the frosting metric is greater than described Frosting threshold value then controls the four-way valve regulation refrigerant flow direction, and controls the aperture for increasing the throttling set, so that refrigerant stream Amount increases according to the first rate, to execute commutation defrosting operation.

In the present embodiment, by further obtaining outside humidity, outdoor temperature and room temperature, based on outdoor wet Degree, outdoor temperature and room temperature determine frosting metric, and frosting metric is used to measure the degree of frosting, in conjunction with preset Frosting threshold value determines specific defrost mode, to obtain good defrosting effect, wherein if frosting metric is greater than frosting threshold Value, shows that frosting degree is more serious, changes refrigerant flow direction by adjusting four-way valve at this time, to execute commutation defrosting operation, is not required to Defrosting operation can be completed in the adjusting for carrying out the heat-exchanger rig of big aperture.

In above-described embodiment, optionally, further includes: if the frosting metric is less than or equal to the frosting threshold value, Current refrigerant is maintained to flow to, and the aperture for controlling the throttling set increases to greater than or is equal to first aperture, and is less than Or it is equal to second aperture, to execute defrosting operation.

In the present embodiment, if frosting metric is less than or equal to frosting threshold value, show the lesser extent of current frosting, this When can continue to run in a heating mode, so as to guarantee to be not disrupted indoor heating operation, further, will throttle The aperture of device is first adjusted to the first aperture, with further control increases aperture on the basis of the first aperture, to complete defrost Demand.

As shown in figure 5, describing another progress control method in the application by taking heat exchanger frosting as an example, comprising:

Step 502, booting operation heating mode；

Step 504, detect the coil temperature of outdoor heat exchanger, with judge outdoor heat exchanger whether frosting；

Step 506, if detecting frosting, when further combined with outdoor temperature, outside humidity and room temperature and operation Between judge frosting degree, by according to frosting degree select defrost in a manner of；

Step 508, if enter commutation defrost, by the aperture regulation of throttling set to less than or be equal to the first aperture, if It, then will be more than the aperture regulation of throttling set to the first aperture into the defrost that do not commutate.

In above-described embodiment, optionally, the throttling set includes valve seat and the valve by excitation con-trol round-trip Needle offers the throttle orifice with needle cooperation on the valve seat, to limit refrigerant by the needle and the throttle orifice Circulation area, wherein the aperture for controlling the throttling set increases to the first aperture, and the circulation area is according to third speed Increase, from first aperture, the circulation area increases according to fourth rate, the corresponding circulation of second aperture Ratio cold medium flux corresponding with second aperture between area and the corresponding circulation area of first aperture with Ratio between the corresponding cold medium flux of first aperture is identical.

In the present embodiment, when being adjusted to realize throttling set between the first aperture and the first aperture, cold medium flux Increased according to first rate, when adjusting more than the first aperture, cold medium flux increases according to the second rate, can by limit by The circulation area of the refrigerant limited between throttle orifice and needle is realized, i.e., when being adjusted between the first aperture and the first aperture, Circulation area is increased with third speed, and when continuing to adjust on the basis of the first aperture, circulation area is increased with fourth rate, the Four rates/third speed=the second rate/first rate, and then realize cold medium flux with different speed by adjusting circulation area Rate is adjusted.

As shown in fig. 6, it is S1 that the first aperture, which corresponds to circulation area, it is S1+S2 that the second aperture, which corresponds to circulation area, then has (S1+S2)/S1=k.

In above-described embodiment, optionally, the free end of the needle includes cone structure, frustum cone structure and convex globoidal Any one in structure；The structure connecting with the free end is frustum cone structure, and the frustum cone structure is one or more, The bus of the frustum cone structure is configured to straight line and/or camber line, and the taper of the free end is greater than the frustum cone structure Taper, wherein if the aperture of throttling set increases to first aperture, the free end is connect with the frustum cone structure Face and the throttle orifice limit the circulation area.

In the present embodiment, it is possible to realize that the needle of above-mentioned rate adaptation has multiple structural forms, by needle knot The restriction of structure realizes adjusting when adjusting aperture to circulation area, is in different tune to meet cold medium flux in throttling set It when saving section, is adjusted by different regulations speeds, and then can efficiently solve the problems, such as that air conditioner is operating abnormally.

As shown in Figure 7 to 9, throttling set is specially throttle valve, and including with flowering structure: spring 702, stator coil 704, rotor magnet 706, needle rotational sleeve 708, locating ring 710, pass in and out copper pipe 712, needle 714, valve body 716 and throttling Hole 718, in order to meet different adjustment speed, needle can be there are many implementation.

As shown in fig. 7, comprises cone structure 722 and frustum cone structure 720, wherein rotary table bus is straight line.

As shown in figure 8, including convex globoidal structure 726 and frustum cone structure 724, wherein rotary table bus is straight line.

As shown in figure 9, including cone structure 730 and frustum cone structure 728, wherein rotary table bus is camber line.

As shown in Figure 10, in above-described embodiment, optionally, if the air conditioner still operation irregularity, continues to control The throttling set is adjusted between first aperture and the second aperture, is specifically included: if refrigerant is along the direction of the needle It flows into, and is flowed out along the direction vertical with the needle, i.e., the end B is flowed to by the end A, then continue to control the throttling set described The excitation speed adjusted between first aperture and the second aperture is less than or equal to 90pps；If refrigerant is along vertical with the needle Direction flows into, i.e., flows to the end A by the end B, and flows out along the direction of the needle, then continues to control the throttling set described the The excitation speed adjusted between one aperture and the second aperture is greater than or equal to 30pps.

In the present embodiment, it when refrigerant is in different and flows to, is in by control excitation speed in the range of limiting, with Meet the demand for control of throttling set.

As described in Figure 11, operation control according to an embodiment of the invention fills 110, which includes: memory 1104 and processor 1102；Memory 1104, for storing program code；Processor 1102 is executed for caller code: Obtain heat exchanger running parameter, and according to the running parameter judge the air conditioner whether operation irregularity；If it is determined that described Air conditioner operation irregularity then controls the aperture for increasing the throttling set, so that cold medium flux increases according to first rate；It is described Whether still the aperture of throttling set increases to the first aperture, judge air conditioner operation irregularity；If the air conditioner still works It is abnormal, then continue to control the throttling set adjusting between first aperture and the second aperture, so that the cold medium flux Increased according to the second rate, until detecting that the heat exchanger restores normal, wherein second rate is greater than first speed Rate, the ratio between the corresponding cold medium flux of second aperture cold medium flux corresponding with first aperture are greater than or equal to 3.34, and it is less than or equal to 100.

In addition, throttling set is specifically as follows throttle valve.

In above-described embodiment, optionally, the air conditioner be additionally provided with respectively with the First Heat Exchanger and described second Hot linked compressor is changed, processor 1102 is specifically used for: controlling the compressor and execute frequency redution operation.

In above-described embodiment, optionally, processor 1102 is specifically used for: continuing to control the throttling set according to default Amplification range is adjusted between first aperture and second aperture, and the default amplification range is greater than or equal to 50 steps, And it is less than or equal to 350 steps.

In above-described embodiment, optionally, processor 1102 is specifically used for: the cold medium flux is according to second rate It increases to and is less than or equal to target flow, wherein under the initial opening, the cold medium flux is less than or equal to 8L/min, The target flow is the corresponding cold medium flux of second aperture, and the target flow is according to the specified heat exchange of the air conditioner Amount determines.

In above-mentioned technical proposal, optionally, processor 1102 is specifically used for: the coil temperature of the heat exchanger is obtained, with According to the coil temperature judge the air conditioner whether operation irregularity；And/or the operating pressure of the heat exchanger is obtained, with root According to the operating pressure judge the air conditioner whether operation irregularity.

In above-described embodiment, optionally, processor 1102 is specifically used for: obtaining the first of the First Heat Exchanger respectively Second coil temperature of coil temperature and second heat exchanger；If determining first heat exchange according to first coil temperature Device is in pressure anomaly state, it is determined that the First Heat Exchanger operation irregularity；If determining institute according to second coil temperature It states the second heat exchanger and is in pressure anomaly state, it is determined that the second heat exchanger operation irregularity.

In above-described embodiment, optionally, the First Heat Exchanger is indoor heat exchanger, and second heat exchanger changes for outdoor Hot device, processor 1102, is specifically used for: the air conditioner is in heating mode, obtains the coil temperature of second heat exchanger, If the coil temperature of second heat exchanger is less than or equal to freezing point temperature, determine that second heat exchanger has frosting wind Danger, and determine the second heat exchanger operation irregularity.

In above-described embodiment, optionally, processor 1102 is specifically used for: make the cold medium flux according to described second After rate increase, control starting defrosting operation, until detecting that the heat exchanger restores normal.

In above-described embodiment, optionally, the air conditioner further includes the four-way valve for adjusting refrigerant flow direction, processor 1102, it is specifically used for: if it is determined that second heat exchanger has frosting risk, then obtains outside humidity, outdoor temperature, Indoor Temperature Degree and air conditioner operation duration；According to the outside humidity, the outdoor temperature, the room temperature and the operation duration Determine frosting metric；Judge the relationship between the frosting metric and frosting threshold value；If the frosting metric is greater than institute Frosting threshold value is stated, then the four-way valve regulation refrigerant flow direction is controlled, and control the aperture for increasing the throttling set, so that refrigerant Flow increases according to the first rate, to execute commutation defrosting operation.

In above-described embodiment, optionally, processor 1102 is specifically used for: if the frosting metric is less than or equal to institute Frosting threshold value is stated, then current refrigerant is maintained to flow to, and the aperture for controlling the throttling set increases to greater than or be equal to described the One aperture, and it is less than or equal to second aperture, to execute defrosting operation.

In above-described embodiment, optionally, processor 1102 is specifically used for: if if refrigerant is flowed into along the direction of the needle, And flowed out along the direction vertical with the needle, then continue to control the throttling set first aperture and the second aperture it Between the excitation speed that adjusts be less than or equal to 90pps；If refrigerant is flowed into along the direction vertical with the needle, and along the needle Direction outflow, then continue to control the excitation speed that the throttling set is adjusted between first aperture and the second aperture big In or equal to 30pps.

The air conditioner of embodiment according to the present invention, comprising: operating control device 110 provided by the above embodiment.

As shown in figure 12, air conditioner further includes compressor 1202, four-way valve 1204, outdoor fan 1206, outdoor heat exchanger 1208, indoor heat exchanger 1210, indoor fan 1212 and throttling set 1214, wherein throttling set can be Fig. 7 into Fig. 9 Any structure type, but it is not limited to above structure form.

As shown in figure 13, air conditioner is including compressor 1202, four-way valve 1204, outdoor fan 1206, outdoor heat exchanger It 1208, can also be in the interior of air conditioner on the basis of indoor heat exchanger 1210, indoor fan 1212 and throttling set 1214 Assisted heating device 1216 is set in machine, room is heated with opening auxiliary when executing defrosting operation.

The computer readable storage medium of embodiment according to the present invention is stored thereon with computer program, the calculating The step of machine program is performed, realizes progress control method described in any of the above embodiments.

To sum up, a kind of progress control method provided by the invention, a kind of operating control device, a kind of air conditioner and a kind of meter Calculation machine readable storage medium storing program for executing is opened by the specific restriction to throttling set aperture regulation process since initial opening Degree is adjusted, and the adjusting of throttling set aperture includes at least two stages, is the first stage from initial opening to the first aperture, It is second stage from the first aperture to the second aperture, first stage cold medium flux is increased with first rate, second stage refrigerant stream For amount with the increase of the second rate, the second rate is greater than first rate, and the corresponding cold medium flux of the second aperture and the first aperture pair The ratio between cold medium flux answered is between [3.34,100], on the one hand, can not after increasing cold medium flux with first rate When solving or alleviating current abnormal problem, can by the aperture of throttling set is further adjusted with the second rate solution or Alleviate abnormal problem, on the other hand, compared with the solution of the relevant technologies, does not need that the side for executing unloading operation is separately provided Road, therefore not will increase preparation cost, in another aspect, do not need to execute shutdown operation compared with the solution of the relevant technologies, Therefore it will not influence the normal use of user.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the present invention Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the present invention, which can be used in one or more, The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces The form of product.

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

It should be noted that in the claims, any reference symbol between parentheses should not be configured to power The limitation that benefit requires.Word "comprising" does not exclude the presence of component or step not listed in the claims.Before component Word "a" or "an" does not exclude the presence of multiple such components.The present invention can be by means of including several different components It hardware and is realized by means of properly programmed computer.In the unit claims listing several devices, these are filled Several in setting, which can be, to be embodied by the same item of hardware.The use of word first, second, and third is not Indicate any sequence.These words can be construed to title.

Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as It selects embodiment and falls into all change and modification of the scope of the invention.

Obviously, various changes and modifications can be made to the invention without departing from right of the present invention by those skilled in the art It is required that and its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.

Claims

1. a kind of progress control method is suitable for air conditioner, the air conditioner includes First Heat Exchanger and the second heat exchanger, is used for It is connected on the flow path of the First Heat Exchanger and second heat exchanger and is provided with throttling set, which is characterized in that the operation Control method includes:

Obtain heat exchanger running parameter, and according to the running parameter judge the air conditioner whether operation irregularity；

If it is determined that the air conditioner operation irregularity, then control the aperture for increasing the throttling set, so that cold medium flux is according to One rate increases；

Whether still the aperture of the throttling set increases to the first aperture, judge air conditioner operation irregularity；

If the air conditioner still operation irregularity, continue to control the throttling set between first aperture and the second aperture It adjusts, so that the cold medium flux increases according to the second rate, until detect that the heat exchanger restores normal, second speed Rate is greater than the first rate.

2. progress control method according to claim 1, which is characterized in that

Ratio between the corresponding cold medium flux of second aperture cold medium flux corresponding with first aperture is greater than or waits In 3.34, and it is less than or equal to 100.

3. progress control method according to claim 2, which is characterized in that

Ratio between the corresponding cold medium flux of second aperture cold medium flux corresponding with first aperture is greater than or waits In 3.35, and it is less than or equal to 30.

4. progress control method according to claim 1, which is characterized in that the air conditioner be additionally provided with respectively with it is described First Heat Exchanger and described second changes hot linked compressor, if it is determined that the air conditioner operation irregularity, the operation controlling party Method further include:

It controls the compressor and executes frequency redution operation.

5. progress control method according to claim 3, which is characterized in that the running parameter in acquisition heat exchanger, And judge the air conditioner whether before operation irregularity according to the running parameter, further includes:

The aperture of the throttling set is obtained, and is determined as initial opening, the initial opening is less than first aperture, described First aperture is greater than or equal to 150 steps, and is less than or equal to 400 steps, so that cold medium flux is in the initial opening and described the Increased between one aperture according to the first rate,

Wherein, under the initial opening, the cold medium flux is less than or equal to 8L/min.

6. progress control method according to claim 5, which is characterized in that if the air conditioner still operation irregularity, after The continuous control throttling set is adjusted between first aperture and the second aperture, is specifically included:

Continue to control the throttling set and be adjusted between first aperture and second aperture according to default amplification range, The default amplification range is greater than or equal to 50 steps, and is less than or equal to 350 steps.

7. progress control method according to claim 6, which is characterized in that if the air conditioner still operation irregularity, Then continue to control the throttling set and be adjusted between first aperture and the second aperture, so that the cold medium flux is according to Two rates increase, and specifically include:

The cold medium flux is increased to according to second rate less than or equal to target flow,

Wherein, the target flow is the corresponding cold medium flux of second aperture, and the target flow is according to the air conditioner Specified heat exchange amount determine.

8. progress control method according to any one of claim 1 to 7, which is characterized in that the acquisition heat exchanger Running parameter, and according to the running parameter judge the air conditioner whether operation irregularity, specifically include:

Obtain the coil temperature of the heat exchanger, with according to the coil temperature judge the air conditioner whether operation irregularity；With/ Or

Obtain the operating pressure of the heat exchanger, with according to the operating pressure judge the air conditioner whether operation irregularity.

9. progress control method according to claim 8, which is characterized in that the coil pipe temperature for obtaining the heat exchanger Degree, with according to the coil temperature judge the air conditioner whether operation irregularity, specifically include:

The first coil temperature of the First Heat Exchanger and the second coil temperature of second heat exchanger are obtained respectively；

If determining that the First Heat Exchanger is in pressure anomaly state according to first coil temperature, it is determined that described first changes Hot device operation irregularity；

If determining that second heat exchanger is in pressure anomaly state according to second coil temperature, it is determined that described second changes Hot device operation irregularity.

10. progress control method according to claim 8, which is characterized in that the First Heat Exchanger is indoor heat exchanger, Second heat exchanger is outdoor heat exchanger, the running parameter for obtaining heat exchanger, and judges institute according to the running parameter State air conditioner whether operation irregularity, specifically include:

The air conditioner is in heating mode, the coil temperature of second heat exchanger is obtained, if the disk of second heat exchanger Tube temperature degree is less than or equal to freezing point temperature, then determines that second heat exchanger has frosting risk, and determines second heat exchange Device operation irregularity.

11. progress control method according to claim 10, which is characterized in that if the air conditioner still work it is different Often, then continue to control the throttling set and be adjusted between first aperture and the second aperture, so that the cold medium flux root Increase according to the second rate, until detecting that the heat exchanger restores normal, specifically further include:

Make the cold medium flux according to the second rate increase after, control starting defrosting operation, until detecting described change Hot device restores normal.

12. progress control method according to claim 10, which is characterized in that the air conditioner further includes cold for adjusting The four-way valve of matchmaker's flow direction, it is described if it is determined that the air conditioner operation irregularity, then control the aperture for increasing the throttling set, so that Cold medium flux increases according to first rate, specifically includes:

If it is determined that second heat exchanger has frosting risk, then outside humidity, outdoor temperature, indoor temperature and air conditioner are obtained Operation duration；

Frosting metric is determined according to the outside humidity, the outdoor temperature, the room temperature and the operation duration；

Judge the relationship between the frosting metric and frosting threshold value；

If the frosting metric is greater than the frosting threshold value, the four-way valve regulation refrigerant flow direction is controlled, and control increase The aperture of the throttling set, so that cold medium flux increases according to the first rate, to execute commutation defrosting operation.

13. progress control method according to claim 12, which is characterized in that further include:

If the frosting metric is less than or equal to the frosting threshold value, current refrigerant is maintained to flow to, and control the throttling The aperture of device increases to greater than or is equal to first aperture, and is less than or equal to second aperture, to execute defrost behaviour Make.

14. progress control method according to any one of claim 1 to 7, which is characterized in that the throttling set includes Valve seat and the needle moved back and forth by excitation con-trol offer the throttle orifice with needle cooperation on the valve seat, with The circulation area of refrigerant is limited by the needle and the throttle orifice,

Wherein, the aperture for controlling the throttling set increases to the first aperture, and the circulation area increases according to third speed, from First aperture rises, and the circulation area increases according to fourth rate, the corresponding circulation area of second aperture with Ratio cold medium flux corresponding with second aperture between the corresponding circulation area of first aperture and described the Ratio between the corresponding cold medium flux of one aperture is identical.

15. progress control method according to claim 14, which is characterized in that

The free end of the needle includes any one in cone structure, frustum cone structure and convex globoidal structure；

The structure connecting with the free end is frustum cone structure, and the frustum cone structure is one or more, the frustum cone structure Bus be configured to straight line and/or camber line, the taper of the free end is greater than the taper of the frustum cone structure,

Wherein, if the aperture of throttling set increases to first aperture, the free end is connect with the frustum cone structure Face and the throttle orifice limit the circulation area.

16. progress control method according to claim 15, which is characterized in that if the air conditioner still work it is different Often, then continue to control the throttling set and be adjusted between first aperture and the second aperture, specifically included:

If refrigerant is flowed into along the direction of the needle, and flows out along the direction vertical with the needle, then continue to control the section The excitation speed that stream device is adjusted between first aperture and the second aperture is less than or equal to 90pps；

If refrigerant is flowed into along the direction vertical with the needle, and flows out along the direction of the needle, then continue to control the section The excitation speed that stream device is adjusted between first aperture and the second aperture is greater than or equal to 30pps.

17. a kind of operating control device is suitable for air conditioner characterized by comprising processor, the processor execute meter It can be realized the step of progress control method as described in any one of claims 1 to 16 limits when calculation machine program.

18. a kind of air conditioner characterized by comprising

Operating control device as claimed in claim 17.

19. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program The step of being performed, realizing the progress control method as described in any one of claims 1 to 16.