CN109812920A - A kind of control method, device and the multi-line system of the start and stop of air conditioner multi-compressor - Google Patents
A kind of control method, device and the multi-line system of the start and stop of air conditioner multi-compressor Download PDFInfo
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- CN109812920A CN109812920A CN201910136984.9A CN201910136984A CN109812920A CN 109812920 A CN109812920 A CN 109812920A CN 201910136984 A CN201910136984 A CN 201910136984A CN 109812920 A CN109812920 A CN 109812920A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The present invention provides control method, device and the multi-line system of a kind of air conditioner multi-compressor start and stop, the control method includes: after detecting the enabled instruction of compressor to be launched, to judge the operating status of all compressors in same system；If being in shutdown status, the compressor to be launched is adjusted；After the operating parameter of the compressor to be launched falls into the first preset range, start the compressor to be launched；If being partially in open state, the running frequency of compressor in the open state is reduced；The compressor to be launched is adjusted；After operating parameter falls into third preset range, start the compressor to be launched.Control method of the present invention, the factor of the influences such as the operating parameter by detection compressor to be launched and compressor in the open state starting, the compressor to be launched can be started when the compressor to be launched meets entry condition, to greatly reduce the possibility of compressor step-out to be launched.
Description
Technical field
The present invention relates to technical field of air conditioner, in particular to a kind of controlling party of air conditioner multi-compressor start and stop
Method, device and multi-line system.
Background technique
With the fast development of China's economy in recent years, the living standard of the people is increasingly improved, and the use of air-conditioning is increasingly
Generally.The air-conditioner system of multi-compressor, refrigerated medium heat is big, can be realized requirement of the large-scale place to cooling and warming, extensively
Applied to places such as hotel, restaurant, school, theater, market, office building, residential building, hospitals.
But in this air-conditioner system, because being mounted in same system, if compressor start control is improper, hold
Compressor step-out is easily caused, is made a big impact to the service life of compressor.
Summary of the invention
In view of this, the present invention is directed to propose a kind of control method of air conditioner multi-compressor start and stop, to solve compressor
The problem of being easy step-out.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of control method of air conditioner multi-compressor start and stop comprising:
After the enabled instruction for detecting compressor to be launched, the operating status of all compressors in same system is judged；
If all compressors are in shutdown status, judge simultaneously root to the operating parameter of the compressor to be launched
The compressor to be launched is adjusted according to the judgement；
After the operating parameter of the compressor to be launched falls into the first preset range, start the compressor to be launched；
If all compressor intermediate portions reduce the running frequency of compressor in the open state in open state；
After the running frequency of the compressor of the open state falls into the second preset range, to the compressor to be launched
Operating parameter carry out judge and the compressor to be launched is adjusted according to the judgement；
After the operating parameter of the compressor to be launched falls into third preset range, start the compressor to be launched.
Further, further includes:
It detects after the halt instruction of close compressor, reduces the running frequency of compressor in the open state；
After the running frequency of the compressor of the open state falls into the 4th preset range, close described wait close compression
Machine.
Further, the operating parameter of the compressor to be launched includes at least following any: high-pressure, high-low pressure pressure
Difference, delivery temperature, stoppage protection time.
Further, the operating parameter to the compressor to be launched carry out judgement and according to the judgement to it is described to
Starting compressor is adjusted, comprising:
Obtain the high-pressure and the high-low pressure pressure difference of the compressor to be launched；
Judge whether the high-pressure and the high-low pressure pressure difference fall into first preset range；
If it is not, being then connected to the gas exhaust piping of the compressor to be launched with return line, and returns and judge the high pressure
The step of whether pressure and the high-low pressure pressure difference fall into first preset range.
Further, the operating parameter to the compressor to be launched carry out judgement and according to the judgement to it is described to
Starting compressor is adjusted, comprising:
Obtain the delivery temperature of the compressor to be launched；
Judge whether the delivery temperature falls into first preset range；
If it is not, then opening outer blower；
After first preset time, return to the step of whether delivery temperature falls into first preset range judged.
Further, the operating parameter to the compressor to be launched carry out judgement and according to the judgement to it is described to
Starting compressor is adjusted, comprising:
Obtain the delivery temperature of the compressor to be launched；
Judge whether the delivery temperature falls into first preset range；
If it is not, then obtaining the operational mode of air conditioner and being judged；
If the operational mode of the air conditioner is refrigeration mode, the wind speed of outer blower is improved；
After first preset time, return to the step of whether delivery temperature falls into first preset range judged；
If the operational mode of the air conditioner is heating mode, the wind speed of the outer blower is reduced；
After first preset time, return judges whether the delivery temperature falls into the step of first preset range
Suddenly.
Compared with the existing technology, the control method of air conditioner multi-compressor start and stop of the present invention has the advantage that
(1) control method of air conditioner multi-compressor start and stop of the present invention, in this way, existing in air-conditioner system more
When compressor, pass through the influences such as the operating parameter of detection compressor to be launched and compressor in the open state starting
Factor can start the compressor to be launched when the compressor to be launched meets entry condition, thus greatly reduce to
The probability for starting compressor start failure, guarantees successfully starting up for compressor, and then the compressor start failure in elimination system
Caused by aging effects.
(2) control method of air conditioner multi-compressor start and stop of the present invention meets pass to close compressor described
The compressor to be launched is closed when closing condition, to greatly reduce the probability that compressor to be launched is closed in vain, guarantees compression
Effective closing of machine, and then service life caused by the invalid closing of compressor (greatly reducing) in elimination system etc. influences.
Another object of the present invention is to propose a kind of control device of air conditioner multi-compressor start and stop, to solve compressor
The problem of being easy step-out.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of control device of air conditioner multi-compressor start and stop comprising:
Controller after the enabled instruction for being used to detect compressor to be launched, judges all compressors in same system
Operating status；
If all compressors are in shutdown status, the controller carries out the operating parameter of the compressor to be launched
Judge and the compressor to be launched is adjusted according to the judgement；
After the operating parameter of the compressor to be launched falls into the first preset range, the controller starting is described wait open
Dynamic compressor；
If all compressor intermediate portions reduce compressor in the open state in open state, the controller
Running frequency；
After the running frequency of the compressor of the open state falls into the second preset range, the controller to it is described to
The operating parameter of starting compressor judge and be adjusted according to the judgement to the compressor to be launched；
After the operating parameter of the compressor to be launched falls into third preset range, the controller starting is described wait open
Dynamic compressor.
Further, further includes:
The controller is also used to detect after the halt instruction of close compressor, reduces pressure in the open state
The running frequency of contracting machine；
After the running frequency of the compressor of the open state falls into the 4th preset range, described in the controller closing
To close compressor.
Further, the controller carries out judgement to the operating parameter of the compressor to be launched and according to the judgement pair
The compressor to be launched is adjusted, comprising:
Acquiring unit obtains the high-pressure and high-low pressure pressure difference of the compressor to be launched；
The controller judges whether the high-pressure and the high-low pressure pressure difference fall into first preset range；
If it is not, then the gas exhaust piping of the compressor to be launched is connected to by the controller with return line, and sentence again
Break the high-pressure and whether the high-low pressure pressure difference falls into first preset range.
Further, the controller carries out judgement to the operating parameter of the compressor to be launched and according to the judgement pair
The compressor to be launched is adjusted, comprising:
The acquiring unit obtains the delivery temperature of the compressor to be launched；
The controller judges whether the delivery temperature falls into first preset range；
If it is not, then the controller opens outer blower；
After first preset time, the controller rejudges whether the delivery temperature falls into the described first default model
It encloses.
The control method phase of the control device of the air conditioner multi-compressor start and stop and above-mentioned air conditioner multi-compressor start and stop
Identical for advantage possessed by the prior art, details are not described herein.
Another object of the present invention is to propose a kind of multi-line system, to solve the problems, such as the easy step-out of compressor displacement.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of multi-line system comprising the control device of air conditioner multi-compressor start and stop described above.
The multi-line system and the control device of above-mentioned air conditioner multi-compressor start and stop are had compared with the existing technology
Advantage it is identical, details are not described herein.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart one of the control method of air conditioner multi-compressor start and stop described in the embodiment of the present invention；
Fig. 2 is the flowchart 2 of the control method of air conditioner multi-compressor start and stop described in the embodiment of the present invention；
Fig. 3 is the flow chart one that the embodiment of the present invention is adjusted compressor to be launched；
Fig. 4 is the flowchart 2 that the embodiment of the present invention is adjusted compressor to be launched；
Fig. 5 is the flow chart that the embodiment of the present invention 2 is adjusted compressor to be launched；
Fig. 6 is the structural block diagram of the control device of air conditioner multi-compressor start and stop described in the embodiment of the present invention.
Description of symbols:
1- controller, 2- acquiring unit.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment 1
As shown in Figure 1, its flow chart one for the control method of air conditioner multi-compressor start and stop described in the embodiment of the present invention；
Wherein, the control method of the air conditioner multi-compressor start and stop includes:
Step 100, after the enabled instruction for detecting compressor to be launched, judge the operation of all compressors in same system
State；
In same system, there can be multiple compressors, we will need compressor to be started to be referred to as compressor to be launched；
After the enabled instruction for detecting compressor to be launched, need by the compressor start to be launched, at this time, it may be necessary to first to system
In the operating statuses of all compressors judged；The judgement can be carried out by way of traversal, can also pass through other
Mode carry out, mainly judge whether that compressor all in system is in shutdown status, be still in open state,
Still it is partially in shutdown status, is partially in open state, different subsequent controls is then carried out according to different states.
Step 200, if all compressors are in shutdown status, the operating parameter of the compressor to be launched is carried out
Judge and the compressor to be launched is adjusted according to the judgement；
When all compressors are in shutdown status, it that is to say that compressor to be launched is to start first in whole system
Compressor, in this regard, directly acquire the operating parameter of compressor to be launched, if the operating parameter is unable to satisfy entry condition,
The operating parameter that compressor to be launched is then adjusted by control system, until meeting entry condition.
Compressor on startup, needs to consider that pressure, delivery temperature of air inlet and exhaust outlet etc. are (specific in need of consideration
Parameter, is subject to practical estimate of situation) influence, can if directly being started if these parameters are unsatisfactory for entry condition
Starting failure can be will lead to or start imperfect, and then compressor itself can be caused to damage, influence its service life.
Wherein, operating parameter described in this step is that the parameter of service condition when meeting compressor unlatching (that is to say pressure
The parameter in service condition for needing to meet when contracting machine is opened), the operating parameter is obtained, is for the ease of judging the operating parameter
Under compressor whether meet entry condition, if can star, therefore, which is necessary for meeting compressor when opening
Service condition parameter.
Preferably, the operating parameter can for frequency, delivery temperature, high-pressure, low pressure, high-low pressure pressure difference etc.,
Carrying out practically parameter is subject to actual conditions.
Step 300, after the operating parameter of the compressor to be launched falls into the first preset range, start described to be launched
Compressor；
First preset range is the entry condition of compressor to be launched, if the operating parameter of compressor to be launched
The first preset range is fallen into, then the compressor to be launched meets entry condition, can star the compressor to be launched.
Step 400, if all compressor intermediate portions reduce the fortune of compressor in the open state in open state
Line frequency；
All compressor intermediate portions that is to say that compressor to be launched is not to start first in whole system in open state
Compressor, so, the starting of the compressor to be launched is had an impact, not only include its operating parameter, further include
The operating parameter of compressor in the open state.For compressor to be launched, the fortune of compressor in the open state
In row parameter, influence maximum to be its running frequency；If running frequency is excessively high, the starting that will lead to compressor to be launched is easy
Failure, that is to say step-out, to produce a very large impact to the service life of compressor to be launched.At this time, it may be necessary to pass through control system
It unites to adjust the running frequency of compressor in the open state, until meeting the entry condition of compressor to be launched.
Step 500, after the running frequency of the compressor of the open state falls into the second preset range, to described wait open
The operating parameter of dynamic compressor judge and be adjusted according to the judgement to the compressor to be launched；
Second preset range is one of the entry condition of compressor to be launched, if the fortune of open state compressor
Line frequency falls into the second preset range, then compressor to be launched meets one of entry condition, can meet other startings at the same time
On the basis of condition, start compressor to be launched, can also judge compressor to be launched on the basis of meeting the entry condition
Operating parameter whether meet entry condition, if the operating parameter is unable to satisfy entry condition, adjusted by control system
The operating parameter of whole compressor to be launched, until meeting entry condition.
Wherein, the running frequency of the compressor of the open state falls into the second preset range, refers to the pressure of open state
The running frequency of contracting machine is less than predetermined frequency value.Wherein, the value range of predetermined frequency value is 20Hz-30Hz, can also basis
Actual conditions determine value, in this way, can prevent compressor from starting under conditions of weight power, so that reduces starting failure can
It can property.
Step 600, after the operating parameter of the compressor to be launched falls into third preset range, start described to be launched
Compressor.
The third preset range is the entry condition of compressor to be launched, if the operating parameter of compressor to be launched
Third preset range is fallen into, then the compressor to be launched meets one of entry condition, meets the pressure of the open state at the same time
The running frequency of contracting machine is fallen on the basis of the entry condition of third preset range, can star compressor to be launched.
In this way, being opened there are when multiple compressors by detecting compressor to be launched and being in air-conditioner system
The factor of the influences such as the operating parameter of the compressor of state starting, can open when the compressor to be launched meets entry condition
The compressor to be launched is moved, to greatly reduce the probability of compressor start failure to be launched, guarantees that the success of compressor is opened
It is dynamic, and then aging effects caused by compressor (greatly reducing) the starting failure in elimination system.
Preferably, as shown in Fig. 2, the control method of the air conditioner multi-compressor start and stop further include:
Step 700, it detects after the halt instruction of close compressor, reduces the operation of compressor in the open state
Frequency；
In same system, there can be multiple compressors, we will need the compressor closed to be referred to as to close compressor；
It is detecting after the halt instruction of close compressor, is needing to close described to close compressor, at this point, for wait close pressure
For contracting machine, in the operating parameter of compressor in the open state, influence maximum to be its running frequency；If running frequency mistake
Height then will lead to can not effectively close to close compressor, so that the service life for treating close compressor generates very big shadow
It rings.At this time, it may be necessary to the running frequency of compressor in the open state be adjusted by control system, until meeting wait close pressure
Until the closedown condition of contracting machine.
Step 800, after the running frequency of the compressor of the open state falls into the 4th preset range, close it is described to
Close compressor.
4th preset range, for the closedown condition to close compressor, if the compressor of the open state
Running frequency falls into the 4th preset range, then meets closedown condition to close compressor, can close to close compressor.
There are when multiple compressors in air-conditioner system, by detection to close compressor and in the open state
The factor of compressor when the influences such as the operating parameter of compressor are closed, can meet closedown condition to close compressor described
When, closes described to close compressor, to greatly reduce the probability closed in vain to close compressor, guarantee compressor has
Service life caused by effect is closed, and then the compressor (greatly reducing) in elimination system is closed in vain etc. influences.
Preferably, the operating parameter of the compressor to be launched is including at least following any: high-pressure, high-low pressure pressure
Difference, delivery temperature, stoppage protection time.
In air-conditioner system, have one or more air-conditioner outdoor unit, inside each air-conditioner outdoor unit, be provided with
One or more compressor；For the ease of being described, we can be by the compressor in the same air-conditioner outdoor unit
It is considered as one group of compressor, in this way, an air-conditioner system includes a group or more of compressors, the compression of every group of compressor
Machine quantity is one or more.
Compressor has gas outlet and air inlet, and main function is compressed to the refrigerant vapor of low pressure, is pressed
It is condensed to high pressure, is low pressure at the air inlet of compressor therefore, is high pressure at gas outlet.High-pressure in the application is pressure
Atmospheric pressure at contracting machine gas outlet；Low pressure in the application is the atmospheric pressure at compressor inlet；The application
In high-low pressure pressure difference, be the difference between high-pressure and low pressure.In the operating parameter of the compressor to be launched,
The high-pressure of compressor in same air-conditioner outdoor unit is identical with high-low pressure pressure difference.In other words, to the height of compressor
Pressure pressure, low pressure and high-low pressure pressure difference, are measured by minimum unit of air-conditioner outdoor unit, the high pressure of measurement
Pressure, low pressure and high-low pressure pressure difference are the data in the air-conditioner outdoor unit after the synthesis of all compressors, therefore, place
It is identical with high-low pressure pressure difference in the high-pressure of the compressor (same group of compressor) in same air-conditioner outdoor unit.
Preferably, as shown in figure 3, the operating parameter to the compressor to be launched carries out judgement and according to the judgement
The compressor to be launched is adjusted, comprising:
Step 010, the high-pressure and the high-low pressure pressure difference of the compressor to be launched are obtained；
Step 020, judge whether the high-pressure and the high-low pressure pressure difference fall into first preset range；
The high-pressure falls into first preset range, refers to that the high-pressure is less than high pressure preset value, high pressure
The value range of preset value is 3.8-4.3Mpa, preferably, the high pressure preset value is 3.8Mpa, it can also be according to the actual situation
Determine value.In this way, the compressor can be run in safe operation value or be started or be closed, to prevent due to high pressure
Starting failure caused by hypertonia or invalid closing.
The high-low pressure pressure difference falls into first preset range, refers to that the high-low pressure pressure difference is less than pressure difference preset value,
The value range of the pressure difference preset value is 2-4Mpa, preferably, the pressure difference preset value is 2Mpa, it can also be according to practical feelings
Condition determines value.In this way, the compressor can be run in safe operation value or be started or be closed, to prevent due to height
Starting failure caused by low-voltage differential is excessively high or invalid closing.
Step 030, if it is not, being then connected to the gas exhaust piping of the compressor to be launched with return line, and described in return
Step 020.
By connection gas exhaust piping and return line, high-pressure side can be connected to low pressure side, so that
High-pressure side and low pressure side are rapidly reached pressure balance, to reduce high-pressure and high-low pressure pressure difference, then pass through
The mode rejudged, so that the high-pressure of compressor to be launched and the high-low pressure pressure difference meet trip bar
Part.
Wherein, the gas exhaust piping and return line are connected to, and can be accomplished by the following way:
One connecting pipeline is set between gas exhaust piping and return line, gas exhaust piping is connect with return line；Even
Siphunculus road is provided with solenoid valve, to control the on-off of connecting pipeline.In this way, needing high-pressure side and low pressure side
When connection, solenoid valve is opened, connecting pipeline is connected, so that gas exhaust piping is connected to return line, so that high-pressure
Side and low pressure side are rapidly reached pressure balance.
Preferably, as shown in figure 4, the operating parameter to the compressor to be launched carries out judgement and according to the judgement
The compressor to be launched is adjusted, further includes:
Step 040, the delivery temperature of the compressor to be launched is obtained；
It wherein, include a group or more of compressors, the compressor of every group of compressor for an air-conditioner system
Quantity is that one or more air-conditioner system needs individually to survey wherein the delivery temperature of each compressor is all different
Amount.
Step 050, judge whether the delivery temperature falls into first preset range；
The delivery temperature falls into first preset range, refers to that the delivery temperature is less than temperature preset value.
Wherein, when compressor works normally, delivery temperature will meet the requirement of compressor specification, if excessive discharge temperature,
Compressor easy to damage causes the service life of compressor to shorten.In addition, compressor exhaust temperature is higher, associated compressors are moved back
Magnetoelectricity stream can reduce, and compressor start is also easy to produce high current when failing, it is easier to cause compressor to demagnetize, reduce making for compressor
Use the service life.
Wherein, the value range of the temperature preset value is 70-120 DEG C, preferably, the temperature preset value is 80 DEG C.
The value of the temperature preset value can also be determines according to actual conditions.In this way, the compressor can be carried out in safe operation value
Operation starts or closes, to prevent the starting failure as caused by excessive discharge temperature or invalid closing or compressor from moving back
Magnetic.
Step 060, if it is not, then opening outer blower；
By opening outer blower, the delivery temperature of compressor can be reduced, so as to adjust the operating parameter of compressor, is convenient for
Carry out subsequent operation.
Step 070, after the first preset time, the step 050 is returned.
By the way that the first preset time is arranged, so that outer blower can run the first preset time, compression is effectively reduced
The delivery temperature of machine, then by way of rejudging, so that the delivery temperature satisfaction of compressor to be launched opens
Dynamic condition.
In this way, on the basis of high-pressure and high-low pressure pressure difference meet entry condition, so that delivery temperature meets starting
Condition, so as to exclude to influence the parameter factor of starting, guarantee successfully starts up compressor to be launched.
Preferably, the operating parameter of compressor to be launched further includes the stoppage protection time, the stoppage protection time is fallen into
First preset range refers to that the stoppage protection time is greater than time preset value.The value range of the time preset value is 3-
6min, can also be determines according to actual conditions.
Stoppage protection time, the stoppage protection time equal independent measurement of each compressor, after a compressor shutdown
Start timing, until being again started up.
Such as: a compressor switchs to closed state by open state, if the compressor is again turned on, it is necessary to meet and shut down
After guard time, just allow to open, in this way, compressor internal pressure caused by can preventing high frequent starting, stopping is shaken
It swings, and then avoids the problem that service life caused by pressure oscillations reduces.
Preferably, can also be in the case where not implementation steps 010-030, directly by step 040-070 to exhaust temperature
Degree is judged, directly initiates compressor to be launched after delivery temperature meets entry condition, as such, it is desirable to the condition of judgement
It is few, it can reduce the complexity of judgement.
Embodiment 2
The control method of air conditioner multi-compressor start and stop as described above, the present embodiment are different from place and are, such as
Shown in Fig. 5, the operating parameter to the compressor to be launched carries out judgement and according to the judgement to the compression to be launched
Machine is adjusted, further includes:
Step 041, the delivery temperature of the compressor to be launched is obtained；
Step 051, judge whether the delivery temperature falls into first preset range；
The delivery temperature falls into first preset range, refers to that the delivery temperature is less than temperature preset value.
Wherein, when compressor works normally, delivery temperature will meet the requirement of compressor specification, if excessive discharge temperature,
Compressor easy to damage causes the service life of compressor to shorten.In addition, compressor exhaust temperature is higher, associated compressors are moved back
Magnetoelectricity stream can reduce, and compressor start is also easy to produce high current when failing, it is easier to cause compressor to demagnetize, reduce making for compressor
Use the service life.
Wherein, the value range of the temperature preset value is 70-120 DEG C, preferably, the temperature preset value is 80 DEG C.
The value of the temperature preset value can also be determines according to actual conditions.In this way, the compressor can be carried out in safe operation value
Operation starts or closes, to prevent the starting failure as caused by excessive discharge temperature or invalid closing or compressor from moving back
Magnetic.
Step 061, if it is not, then obtaining the operational mode of air conditioner and being judged；
Step 071, if the operational mode of the air conditioner is refrigeration mode, the wind speed of outer blower is improved；
Step 081, after the first preset time, return judges whether the delivery temperature falls into first preset range
Step；
In this step, after first preset time, refer to air conditioner since the step 071, after improving outer blower wind speed
The first preset time is run；Specific implementation may is that
Start timing after executing step 071, then judges whether the time of timing reaches first preset time, if
Reach, then executes subsequent return judges the step of whether delivery temperature falls into first preset range.
In this way, the influence that can will improve the wind speed of outer blower extends by setting this period of the first preset time
To delivery temperature, to achieve the purpose that (wind speed for improving outer blower can achieve reduces delivery temperature to reduction delivery temperature
Purpose, but the reducing effect needs the regular hour to realize, that is, needs after the first preset time, can just be effectively reduced
Delivery temperature).
Wherein, the specific value range of first preset time can be determines according to actual conditions.
Step 091, if the operational mode of the air conditioner is heating mode, the wind speed of the outer blower is reduced；
Step 001, after first preset time, return step 051.
By the way that the first preset time is arranged, so that outer blower can run the first preset time with the wind speed of adjustment,
The delivery temperature of compressor is effectively reduced, then by way of rejudging, so that the row of compressor to be launched
Temperature degree meets entry condition.
In this way, by the judgement of the operational mode to air conditioner, thus take different modes of operation to delivery temperature into
Row adjustment, to reach better adjustment effect.
Preferably, can also be in the case where not implementation steps 010-030, directly by step 041-001 to exhaust temperature
Degree is judged, directly initiates compressor to be launched after delivery temperature meets entry condition, as such, it is desirable to the condition of judgement
It is few, it can reduce the complexity of judgement.
Embodiment 3
The control method of air conditioner multi-compressor start and stop as described above, the present embodiment are different from place and are, on
The operating parameter to the compressor to be launched is stated to carry out judgement and carry out the compressor to be launched according to the judgement
Adjustment is the corresponding content in step 200；The operating parameter to the compressor to be launched of the step 500 carries out
Judge and according to the detailed process that the judgement is adjusted the compressor to be launched, it is described to institute with the step 200
The operating parameter for stating compressor to be launched judge and be adjusted according to the judgement to the compressor to be launched specific
Process is identical, the difference is that only that the first preset range and third preset range therein have certain difference.
Preferably, judge for the ease of whether the operating parameter to the compressor to be launched meets entry condition,
Identical preset range can also be set by the first preset range and third preset range, so as to preset using same
Trip bar of the range to all compressor intermediate portions in the case of open state, all compressors are in two kinds of shutdown status
Part is judged, the workload of judgement is reduced, and raising judges speed.
Embodiment 4
The control method of air conditioner multi-compressor start and stop as described above, the present embodiment are a kind of corresponding air-conditioning
The control device of device multi-compressor start and stop, as shown in fig. 6, comprising:
Controller 1 after the enabled instruction for being used to detect compressor to be launched, judges all compressors in same system
Operating status；
If all compressors are in shutdown status, the controller 1 to the operating parameter of the compressor to be launched into
Row judges and is adjusted according to the judgement to the compressor to be launched；
After the operating parameter of the compressor to be launched falls into the first preset range, the controller 1 start it is described to
Start compressor；
If all compressor intermediate portions reduce compressor in the open state in open state, the controller 1
Running frequency；
After the running frequency of the compressor of the open state falls into the second preset range, the controller 1 is to described
The operating parameter of compressor to be launched judge and be adjusted according to the judgement to the compressor to be launched；
After the operating parameter of the compressor to be launched falls into third preset range, the controller 1 start it is described to
Start compressor.
In this way, being opened there are when multiple compressors by detecting compressor to be launched and being in air-conditioner system
The factor of the influences such as the operating parameter of the compressor of state starting, can open when the compressor to be launched meets entry condition
The compressor to be launched is moved, to greatly reduce the probability of compressor start failure to be launched, guarantees that the success of compressor is opened
It is dynamic, and then aging effects caused by compressor (greatly reducing) the starting failure in elimination system.
Embodiment 5
The control device of air conditioner multi-compressor start and stop as described above, the present embodiment are different from place and are, institute
State the control device of air conditioner multi-compressor start and stop further include:
The controller 1, is also used to detect after the halt instruction of close compressor, reduces pressure in the open state
The running frequency of contracting machine；
After the running frequency of the compressor of the open state falls into the 4th preset range, the controller 1 closes institute
It states to close compressor.
There are when multiple compressors in air-conditioner system, by detection to close compressor and in the open state
The factor of compressor when the influences such as the operating parameter of compressor are closed, can meet closedown condition to close compressor described
When, closes described to close compressor, to greatly reduce the probability closed in vain to close compressor, guarantee compressor has
Service life caused by effect is closed, and then the compressor (greatly reducing) in elimination system is closed in vain etc. influences.
Embodiment 6
The control device of air conditioner multi-compressor start and stop as described above, the present embodiment are different from place and are, institute
State controller 1 to the operating parameter of the compressor to be launched carry out judgement and according to the judgement to the compressor to be launched into
Row adjustment, comprising:
Acquiring unit 2 obtains the high-pressure and the high-low pressure pressure difference of the compressor to be launched；
The controller 1 judges whether the high-pressure and the high-low pressure pressure difference fall into first preset range；
If it is not, then the gas exhaust piping of the compressor to be launched is connected to by the controller 1 with return line, and sentence again
Break the high-pressure and whether the high-low pressure pressure difference falls into first preset range.
By connection gas exhaust piping and return line, high-pressure side can be connected to low pressure side, so that
High-pressure side and low pressure side are rapidly reached pressure balance, to reduce high-pressure and high-low pressure pressure difference, then pass through
The mode rejudged, so that the high-pressure of compressor to be launched and the high-low pressure pressure difference meet trip bar
Part.
Embodiment 7
The control device of air conditioner multi-compressor start and stop as described above, the present embodiment are different from place and are, institute
State controller 1 to the operating parameter of the compressor to be launched carry out judgement and according to the judgement to the compressor to be launched into
Row adjustment, comprising:
The acquiring unit 2 obtains the delivery temperature of the compressor to be launched；
The controller 1 judges whether the delivery temperature falls into first preset range；
If it is not, then the controller 1 opens outer blower；
After first preset time, the controller 1 rejudges whether the delivery temperature falls into the described first default model
It encloses.
By the way that the first preset time is arranged, so that outer blower can run the first preset time, compression is effectively reduced
The delivery temperature of machine, then by way of rejudging, so that the delivery temperature satisfaction of compressor to be launched opens
Dynamic condition.
In this way, on the basis of high-pressure and high-low pressure pressure difference meet entry condition, so that delivery temperature meets starting
Condition, so as to exclude to influence the parameter factor of starting, guarantee successfully starts up compressor to be launched.
Embodiment 8
The control device of air conditioner multi-compressor start and stop as described above, the present embodiment are different from place and are, institute
It states and the operating parameter of the compressor to be launched judge and be adjusted according to the judgement to the compressor to be launched,
Include:
The acquiring unit 2 obtains the delivery temperature of the compressor to be launched；
The controller 1 judges whether the delivery temperature falls into first preset range；
If it is not, then obtaining the operational mode of air conditioner by the acquiring unit 2 and being judged；
If the operational mode of the air conditioner is refrigeration mode, the controller 1 improves the wind speed of outer blower；
After first preset time, return to the step of whether delivery temperature falls into first preset range judged；
If the operational mode of the air conditioner is heating mode, the controller 1 reduces the wind speed of the outer blower；
After first preset time, return judges whether the delivery temperature falls into the step of first preset range
Suddenly.
By the way that the first preset time is arranged, so that outer blower can run the first preset time with the wind speed of adjustment,
The delivery temperature of compressor is effectively reduced, then by way of rejudging, so that the row of compressor to be launched
Temperature degree meets entry condition.
In this way, by the judgement of the operational mode to air conditioner, thus take different modes of operation to delivery temperature into
Row adjustment, to reach better adjustment effect.
Embodiment 9
The control method of air conditioner multi-compressor start and stop as described above computer-readable is deposited the present embodiment provides a kind of
Storage media, the computer-readable recording medium storage have instruction, may be implemented when instruction is loaded and executed by processor aforementioned
The control method of air conditioner multi-compressor start and stop described in embodiment of the method.
The technical solution of the embodiment of the present invention substantially the part that contributes to existing technology or the technology in other words
The all or part of scheme can be embodied in the form of software products, which is stored in a storage and is situated between
In matter, including some instructions are used so that a computer equipment (can be personal computer, server or the network equipment
Deng) or processor (processor) execute the method for the embodiment of the present invention all or part of the steps.And storage above-mentioned is situated between
Matter includes: the various media that can store program code such as USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk.
Embodiment 10
A kind of multi-line system comprising the control dress of any air conditioner multi-compressor start and stop in above-described embodiment
It sets.
In this way, passing through the influences such as the operating parameter of detection compressor to be launched and compressor in the open state starting
Factor, the compressor to be launched can be started when the compressor to be launched meets entry condition, to greatly reduce
The probability of compressor start failure to be launched, guarantees successfully starting up for compressor, and then the compressor in elimination system (subtracts significantly
It is small) start aging effects caused by failure.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of control method of air conditioner multi-compressor start and stop characterized by comprising
After the enabled instruction for detecting compressor to be launched, the operating status of all compressors in same system is judged；
If all compressors are in shutdown status, the operating parameter of the compressor to be launched is judged simultaneously according to this
Judge to be adjusted the compressor to be launched；
After the operating parameter of the compressor to be launched falls into the first preset range, start the compressor to be launched；
If being partially compressed in all compressors, machine is in the open state, reduces the operation frequency of compressor in the open state
Rate；
After the running frequency of the compressor of the open state falls into the second preset range, to the fortune of the compressor to be launched
Row parameter judge and be adjusted according to the judgement to the compressor to be launched；
After the operating parameter of the compressor to be launched falls into third preset range, start the compressor to be launched.
2. the control method of air conditioner multi-compressor start and stop according to claim 1, which is characterized in that further include:
It detects after the halt instruction of close compressor, reduces the operation frequency of compressor in the open state in same system
Rate；
After the running frequency of the compressor of the open state falls into the 4th preset range, close described to close compressor.
3. the control method of air conditioner multi-compressor start and stop according to claim 1, which is characterized in that the pressure to be launched
The operating parameter of contracting machine includes at least following any: high-pressure, high-low pressure pressure difference, delivery temperature, stoppage protection time.
4. the control method of air conditioner multi-compressor start and stop according to claim 3, which is characterized in that it is described to it is described to
The operating parameter of starting compressor judge and be adjusted according to the judgement to the compressor to be launched, comprising:
Obtain the high-pressure and the high-low pressure pressure difference of the compressor to be launched；
Judge whether the high-pressure and the high-low pressure pressure difference fall into first preset range；
If it is not, being then connected to the gas exhaust piping of the compressor to be launched with return line, and returns and judge the high-pressure
The step of whether falling into first preset range with the high-low pressure pressure difference.
5. the control method of air conditioner multi-compressor start and stop according to claim 3 or 4, which is characterized in that described to institute
The operating parameter for stating compressor to be launched judge and be adjusted according to the judgement to the compressor to be launched, comprising:
Obtain the delivery temperature of the compressor to be launched；
Judge whether the delivery temperature falls into first preset range；
If it is not, then opening outer blower；
After first preset time, return to the step of whether delivery temperature falls into first preset range judged.
6. the control method of air conditioner multi-compressor start and stop according to claim 3 or 4, which is characterized in that described to institute
The operating parameter for stating compressor to be launched judge and be adjusted according to the judgement to the compressor to be launched, comprising:
Obtain the delivery temperature of the compressor to be launched；
Judge whether the delivery temperature falls into first preset range；
If it is not, then obtaining the operational mode of air conditioner and being judged；
If the operational mode of the air conditioner is refrigeration mode, the wind speed of outer blower is improved；
After first preset time, return to the step of whether delivery temperature falls into first preset range judged；
If the operational mode of the air conditioner is heating mode, the wind speed of the outer blower is reduced；
After first preset time, return to the step of whether delivery temperature falls into first preset range judged.
7. a kind of control device of air conditioner multi-compressor start and stop characterized by comprising
Controller (1) after the enabled instruction for being used to detect compressor to be launched, judges all compressors in same system
Operating status；
If all compressors are in shutdown status, the controller (1) carries out the operating parameter of the compressor to be launched
Judge and the compressor to be launched is adjusted according to the judgement；
After the operating parameter of the compressor to be launched falls into the first preset range, controller (1) starting is described wait open
Dynamic compressor；
If all compressor intermediate portions reduce compressor in the open state in open state, the controller (1)
Running frequency；
After the running frequency of the compressor of the open state falls into the second preset range, the controller (1) to it is described to
The operating parameter of starting compressor judge and be adjusted according to the judgement to the compressor to be launched；
After the operating parameter of the compressor to be launched falls into third preset range, controller (1) starting is described wait open
Dynamic compressor.
8. the control device of air conditioner multi-compressor start and stop according to claim 7, which is characterized in that further include:
The controller (1), is also used to detect after the halt instruction of close compressor, reduces compression in the open state
The running frequency of machine；
After the running frequency of the compressor of the open state falls into the 4th preset range, described in controller (1) closing
To close compressor.
9. a kind of computer readable storage medium is stored with instruction, which is characterized in that described instruction is loaded and executed by processor
The control method of Shi Shixian air conditioner multi-compressor start and stop for example as claimed in any one of claims 1 to 6.
10. a kind of multi-line system, which is characterized in that the control including air conditioner multi-compressor start and stop described in claim 7 or 8
Device processed.
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| CN201910136984.9A CN109812920B (en) | 2019-02-25 | 2019-02-25 | Method and device for controlling starting and stopping of multiple compressors of air conditioner and multi-split system |
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