CN107421071B - Diagnostic method, the device of multi-line system and its delivery temperature detection exception - Google Patents
Diagnostic method, the device of multi-line system and its delivery temperature detection exception Download PDFInfo
- Publication number
- CN107421071B CN107421071B CN201710633636.3A CN201710633636A CN107421071B CN 107421071 B CN107421071 B CN 107421071B CN 201710633636 A CN201710633636 A CN 201710633636A CN 107421071 B CN107421071 B CN 107421071B
- Authority
- CN
- China
- Prior art keywords
- line system
- delivery temperature
- compressor
- pressure
- difference
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
- F25B2700/193—Pressures of the compressor
- F25B2700/1931—Discharge pressures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2115—Temperatures of a compressor or the drive means therefor
- F25B2700/21152—Temperatures of a compressor or the drive means therefor at the discharge side of the compressor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses the abnormal diagnostic methods of a kind of multi-line system and its delivery temperature detection, device, wherein, multi-line system includes compressor, diagnostic method is the following steps are included: when multi-line system powers on booting operation, the pressure at expulsion of compressor is obtained every the first preset time, and obtains the delivery temperature of compressor in real time；The pressure at expulsion difference of compressor is calculated according to the pressure at expulsion obtained every the first preset time, and judges whether pressure at expulsion difference is more than or equal to preset pressure threshold value；If pressure at expulsion difference is more than or equal to preset pressure threshold value, the minimum value in the first preset time in delivery temperature is then obtained, and judges that the delivery temperature of multi-line system detects whether exception according to the delivery temperature difference between the current exhaust gas temperature and minimum value of compressor.The diagnostic method can guarantee the accuracy of compressor exhaust temperature detection, convenient for improving the reliability of multi-line system, promote user experience.
Description
Technical field
The present invention relates to a kind of examining for the delivery temperature of air conditioner technical field more particularly to multi-line system detection exception
Disconnected method, a kind of abnormal diagnostic device of the delivery temperature of multi-line system detection and a kind of multi-line system.
Background technique
In multi-line system, the delivery temperature of compressor is the essential condition of judgement system whether normal operation.For example,
The output power of compressor or the aperture of throttle part can be adjusted, according to the delivery temperature of compressor to guarantee the efficient of system
Operation.If delivery temperature detection is abnormal to be will lead in multi-line system using the delivery temperature of compressor as the control of control condition
Logic is abnormal, will lead to system crash, the important component for damaging refrigeration system compressor, will affect system reliability, influence to use
The normal use at family.
Summary of the invention
The present invention is directed to solve one of the technical problem in above-mentioned technology at least to a certain extent.For this purpose, of the invention
First purpose is the diagnostic method for proposing that a kind of delivery temperature detection of multi-line system is abnormal.This method can guarantee to press
The accuracy of contracting machine delivery temperature detection promotes user experience convenient for improving the reliability of multi-line system.
Second object of the present invention is to propose a kind of non-transitorycomputer readable storage medium.
Third object of the present invention is the diagnostic device for proposing that a kind of delivery temperature detection of multi-line system is abnormal.
Fourth object of the present invention is to propose a kind of multi-line system.
In order to achieve the above objectives, first aspect present invention embodiment proposes a kind of delivery temperature detection of multi-line system
Abnormal diagnostic method, the multi-line system includes compressor, and the diagnostic method is the following steps are included: in the multi-connected machine
When system electrification booting operation, the pressure at expulsion of the compressor is obtained every the first preset time, and obtain the pressure in real time
The delivery temperature of contracting machine；The pressure at expulsion of the compressor is calculated according to the pressure at expulsion obtained every first preset time
Difference, and judge whether the pressure at expulsion difference is more than or equal to preset pressure threshold value；If the pressure at expulsion difference is greater than
Equal to preset pressure threshold value, then the minimum value in first preset time in the delivery temperature is obtained, and according to the pressure
Delivery temperature difference between the current exhaust gas temperature of contracting machine and the minimum value judges the delivery temperature of the multi-line system
Detect whether exception.
The abnormal diagnostic method of the delivery temperature detection of multi-line system according to an embodiment of the present invention, according to every first
The pressure at expulsion that preset time obtains calculates the pressure at expulsion difference of compressor, and is more than or equal to default pressure in pressure at expulsion difference
When force threshold, the minimum value in the first preset time in delivery temperature is obtained, according to the current exhaust gas temperature of compressor and minimum
Delivery temperature difference between value judges that the delivery temperature of multi-line system detects whether exception, and thereby, it is possible to guarantee compressor
The accuracy of delivery temperature detection promotes user experience convenient for improving the reliability of multi-line system.
In addition, the diagnostic method of the delivery temperature detection exception of multi-line system according to the above embodiment of the present invention may be used also
To have following additional technical characteristic:
According to one embodiment of present invention, the current exhaust gas temperature according to the compressor and the minimum value it
Between delivery temperature difference judge that the delivery temperature of the multi-line system detects whether that abnormal includes: to judge the compressor
Whether the delivery temperature difference between current exhaust gas temperature and the minimum value is less than preset temperature threshold；If the compressor
Current exhaust gas temperature and the minimum value between delivery temperature difference be less than the preset temperature threshold, then judge described more
The delivery temperature of on-line system detects abnormal；If the exhaust between the current exhaust gas temperature of the compressor and the minimum value
Temperature gap is more than or equal to the preset temperature threshold, then judges that the delivery temperature detection of the multi-line system is normal.
According to one embodiment of present invention, it if the pressure at expulsion difference is less than the preset pressure threshold value, controls
Make the multi-line system continuous service.
According to one embodiment of present invention, after the delivery temperature for judging the multi-line system detects exception, control
The multi-line system is shut down, and exports fault cues information.
According to one embodiment of present invention, the exhaust temperature of the multi-line system is detected by exhaust gas temperature sensor
Degree, wherein the exhaust gas temperature sensor is arranged in the compressor, or is arranged in the exhaust pipe of the compressor.
In order to achieve the above objectives, second aspect of the present invention embodiment proposes a kind of non-transitory computer-readable storage medium
Matter is stored thereon with computer program, which realizes the delivery temperature inspection of above-mentioned multi-line system when being executed by processor
Survey abnormal diagnostic method.
The non-transitorycomputer readable storage medium of the embodiment of the present invention, by execute store thereon with it is above-mentioned multi-joint
The abnormal corresponding program of diagnostic method of the delivery temperature detection of machine system, can guarantee the accurate of compressor exhaust temperature detection
Property, convenient for improving the reliability of multi-line system, promote user experience.
In order to achieve the above objectives, third aspect present invention embodiment proposes a kind of delivery temperature detection of multi-line system
Abnormal diagnostic device, the multi-line system includes compressor, and the diagnostic device includes: the first acquisition module, is used for
When the multi-line system powers on booting operation, the pressure at expulsion of the compressor is obtained every the first preset time, and in real time
Obtain the delivery temperature of the compressor；Second obtains module, for according to the exhaust obtained every first preset time
The pressure at expulsion difference of compressor described in calculation of pressure；First judgment module, for judging whether the pressure at expulsion difference is big
In equal to preset pressure threshold value；Third obtains module, is used for when the pressure at expulsion difference is more than or equal to preset pressure threshold value,
Obtain the minimum value in first preset time in the delivery temperature；Second judgment module, for according to the compressor
Current exhaust gas temperature and the minimum value between delivery temperature difference judge the multi-line system delivery temperature detect
It is whether abnormal.
The abnormal diagnostic device of the delivery temperature detection of multi-line system according to an embodiment of the present invention, obtains by second
Module calculates the pressure at expulsion difference of compressor according to the pressure at expulsion obtained every the first preset time, and is obtained by third
Module obtains the minimum in the first preset time in delivery temperature when pressure at expulsion difference is more than or equal to preset pressure threshold value
Value, and then judged by the second judgment module according to the delivery temperature difference between the current exhaust gas temperature and minimum value of compressor
The delivery temperature of multi-line system detects whether exception, thereby, it is possible to guarantee the accuracy of compressor exhaust temperature detection, is convenient for
The reliability of multi-line system is improved, user experience is promoted.
In addition, the diagnostic device of the delivery temperature detection exception of multi-line system according to the above embodiment of the present invention may be used also
To have following additional technical characteristic:
According to one embodiment of present invention, second judgment module is specifically used for: judging the current of the compressor
Whether the delivery temperature difference between delivery temperature and the minimum value is less than preset temperature threshold；In the current of the compressor
When delivery temperature difference between delivery temperature and the minimum value is less than the preset temperature threshold, the multi-connected machine system is judged
The delivery temperature of system detects abnormal；Delivery temperature difference between the current exhaust gas temperature and the minimum value of the compressor
When more than or equal to the preset temperature threshold, judge that the delivery temperature detection of the multi-line system is normal.
According to one embodiment of present invention, the diagnostic device further includes first control module, for described
When pressure at expulsion difference is less than the preset pressure threshold value, the multi-line system continuous service is controlled.
According to one embodiment of present invention, the diagnostic device further includes second control module, for judging
After the delivery temperature detection exception of the multi-line system, controls the multi-line system and shut down, and export fault cues information.
According to one embodiment of present invention, the exhaust temperature of the multi-line system is detected by exhaust gas temperature sensor
Degree, wherein the exhaust gas temperature sensor is arranged in the compressor, or is arranged in the exhaust pipe of the compressor.
In order to achieve the above objectives, fourth aspect present invention embodiment proposes a kind of multi-line system comprising above-mentioned more
The abnormal diagnostic device of the delivery temperature detection of on-line system.
The air conditioner of the embodiment of the present invention detects abnormal diagnostic device using the delivery temperature of above-mentioned multi-line system,
It can guarantee the accuracy of compressor exhaust temperature detection, convenient for improving the reliability of multi-line system, promote user experience.
Additional aspect and advantage of the invention will be set forth in part in the description, and 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 is the process of the abnormal diagnostic method of the delivery temperature detection of multi-line system according to an embodiment of the present invention
Figure；
Fig. 2 is the abnormal diagnostic method of the delivery temperature detection of real one multi-line system for specifically applying example according to the present invention
Flow chart；
Fig. 3 is the side of the abnormal diagnostic device of the delivery temperature detection of multi-line system according to an embodiment of the invention
Block diagram；
Fig. 4 is the abnormal diagnostic device of the delivery temperature detection of multi-line system in accordance with another embodiment of the present invention
Block diagram；
Fig. 5 is the block diagram of multi-line system according to an embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the multi-line system of the embodiment of the present invention and its diagnosis side that delivery temperature detection is abnormal are described
Method, device.
Fig. 1 is the process of the abnormal diagnostic method of the delivery temperature detection of multi-line system according to an embodiment of the present invention
Figure.
In an embodiment of the present invention, multi-line system includes compressor.
As shown in Figure 1, the abnormal diagnostic method of the delivery temperature detection of multi-line system the following steps are included:
S101 obtains the pressure at expulsion of compressor every the first preset time when multi-line system powers on booting operation,
And the delivery temperature of compressor is obtained in real time.
Specifically, when multi-line system powers on booting operation, the current exhaust pressure of available compressor is that is, multi-joint
The pressure at expulsion HP1 of compressor when machine system brings into operation.
S102, the pressure at expulsion difference of compressor is calculated according to the pressure at expulsion obtained every the first preset time, and is sentenced
Whether disconnected pressure at expulsion difference is more than or equal to preset pressure threshold value.
Specifically, if being HP2 every the pressure at expulsion that the first preset time obtains, then the pressure at expulsion difference of compressor is
HP2-HP1。
Wherein, preset pressure threshold value a MPa can be demarcated according to the actual situation.
S102 obtains exhaust temperature in the first preset time if pressure at expulsion difference is more than or equal to preset pressure threshold value
Minimum value in degree, and multi-connected machine system is judged according to the delivery temperature difference between the current exhaust gas temperature and minimum value of compressor
The delivery temperature of system detects whether exception.
In this embodiment, it if pressure at expulsion difference HP2-HP1 is less than preset pressure threshold value a MPa, controls multi-joint
The operation of machine systems stay.
Specifically, when multi-line system powers on booting operation, the exhaust of compressor is obtained every the first preset time t 1
Pressure HP2, and the delivery temperature Tp of compressor is obtained in real time.According to the pressure at expulsion HP2 obtained every the first preset time t 1
The pressure at expulsion difference HP2-HP1 of compressor is calculated, and judges whether pressure at expulsion difference HP2-HP1 is more than or equal to preset pressure
Threshold value a MPa.If HP2-HP1 >=a MPa, the minimum value Tpmin in the first preset time in t1 delivery temperature is obtained, and
The row of multi-line system is judged according to the delivery temperature difference Tp-Tpmin between the current exhaust gas temperature Tp and Tpmin of compressor
Temperature degree detects whether exception, thereby, it is possible to guarantee the accuracy of compressor exhaust temperature detection, convenient for improving multi-line system
Reliability, promoted user experience.
In one embodiment of the invention, according to the delivery temperature between the current exhaust gas temperature of compressor and minimum value
Difference judges that the delivery temperature of multi-line system detects whether that abnormal includes: the current exhaust gas temperature and minimum value for judging compressor
Between delivery temperature difference whether be less than preset temperature threshold；If between the current exhaust gas temperature and minimum value of compressor
Delivery temperature difference is less than preset temperature threshold, then judges that the delivery temperature detection of multi-line system is abnormal；If compressor
Delivery temperature difference between current exhaust gas temperature and minimum value is more than or equal to b DEG C of preset temperature threshold, then judges multi-connected machine system
The delivery temperature detection of system is normal.
Wherein, b DEG C of preset temperature threshold can be demarcated according to the actual situation.
Further, after the delivery temperature for judging multi-line system detects exception, control multi-line system is shut down, and defeated
Be out of order prompt information.Thus, it is possible to avoid the influence to multi-line system control logic, and may remind the user that in time to
Detection replacement is carried out in the sensor of detection compressor exhaust temperature.
For example, referring to fig. 2, when multi-line system powers on booting operation, the pressure at expulsion HP1 of compressor is obtained, and
The delivery temperature of compressor can be obtained in real time.After multi-line system runs the first preset time t 1, the exhaust pressure of compressor is obtained
Power HP2 judges the variation of multi-line system pressure at expulsion in the first preset time t 1.If HP2-HP1 < a MPa, is controlled
Multi-line system processed continues to run the first preset time t 1；If HP2-HP1 >=a MPa, obtain in the first preset time t 1
The minimum value Tpmin of the delivery temperature of inner compressor, and judge delivery temperature Tp1 and minimum value in t1 moment compressor
Delivery temperature difference between Tpmin.If Tp1-Tpmin >=b DEG C, judging that multi-line system operates normally；If Tp1-
Tpmin < b DEG C then judges that the delivery temperature detection of multi-line system is abnormal, and control multi-line system is shut down, and is exported failure and mentioned
Show information.
In an embodiment of the present invention, the delivery temperature of compressor can be detected by exhaust gas temperature sensor, wherein row
Gas temperature sensor can be set within the compressor, also can be set in the exhaust pipe of compressor.
To sum up, the abnormal diagnostic method of the delivery temperature detection of multi-line system according to an embodiment of the present invention, according to every
The pressure at expulsion difference of compressor is calculated every the pressure at expulsion that the first preset time obtains, and is more than or equal in pressure at expulsion difference
When preset pressure threshold value, the minimum value in the first preset time in delivery temperature is obtained, according to the current exhaust gas temperature of compressor
Delivery temperature difference between minimum value judges that the delivery temperature of multi-line system detects whether exception, and thereby, it is possible to guarantee
The accuracy of compressor exhaust temperature detection promotes user experience convenient for improving the reliability of multi-line system.In addition, can be
After the delivery temperature detection exception for judging multi-line system, multi-line system is controlled by the second control module and is shut down, as a result, can
Caused by enough avoiding the occurrence of because of delivery temperature detection exception the problems such as multi-line system collapse, damage multi-line system component.
Further, the invention proposes a kind of non-transitorycomputer readable storage medium, it is stored thereon with computer
Program, the program realize the delivery temperature detection of above-mentioned multi-line system abnormal diagnostic method when being executed by processor.
Non-transitorycomputer readable storage medium according to an embodiment of the present invention, can by execute store thereon with
The abnormal corresponding program of diagnostic method of the delivery temperature detection of above-mentioned multi-line system, can guarantee that compressor exhaust temperature is examined
The accuracy of survey promotes user experience convenient for improving the reliability of multi-line system.
Fig. 3 is the side of the abnormal diagnostic device of the delivery temperature detection of multi-line system according to an embodiment of the invention
Block diagram.
In an embodiment of the present invention, multi-line system includes compressor.
As shown in figure 3, the diagnostic device 100 of temperature abnormality detection includes: that the first acquisition module 10, second obtains module
20, first judgment module 30, third obtain module 40 and the second judgment module 50.
Wherein, the first acquisition module 10 is used to obtain when multi-line system powers on booting operation every the first preset time
The pressure at expulsion of compressor is taken, and obtains the delivery temperature of compressor in real time.Second, which obtains module 20, is used for according to every first
The pressure at expulsion that preset time obtains calculates the pressure at expulsion difference of compressor.First judgment module 30 is for judging pressure at expulsion
Whether difference is more than or equal to preset pressure threshold value.Third obtains module 40 and is used to be more than or equal to preset pressure in pressure at expulsion difference
When threshold value, the minimum value in the first preset time in delivery temperature is obtained.Second judgment module 50 is used for working as according to compressor
Delivery temperature difference between front exhaust temperature and minimum value judges that the delivery temperature of multi-line system detects whether exception.
In this embodiment, when multi-line system powers on booting operation, the current exhaust pressure of available compressor,
The pressure at expulsion HP1 of compressor when i.e. multi-line system brings into operation.
Specifically, the second judgment module 50 is used to judge the exhaust temperature between the current exhaust gas temperature of compressor and minimum value
Whether degree difference is less than preset temperature threshold；Delivery temperature difference between the current exhaust gas temperature and minimum value of compressor is small
When preset temperature threshold, judge that the delivery temperature detection of multi-line system is abnormal；Compressor current exhaust gas temperature with most
When delivery temperature difference between small value is more than or equal to preset temperature threshold, the delivery temperature detection of multi-line system is being judged just
Often.
Further, in some embodiments of the invention, as shown in figure 4, the delivery temperature detection of multi-line system is different
Normal diagnostic device 100 can also include the first control module 60 and the second control module 70.
Wherein, the first control module 60 is used to control multi-connected machine system when pressure at expulsion difference is less than preset pressure threshold value
System continuous service.Second control module 70 is used for after the delivery temperature for judging multi-line system detects exception, controls multi-connected machine
System-down, and fault cues information is exported, thus, it is possible to avoid the influence to multi-line system control logic, and can mention
Awake user carries out detection replacement to the sensor for detecting compressor exhaust temperature in time.
In an embodiment of the present invention, the delivery temperature of compressor can be detected by exhaust gas temperature sensor, wherein exhaust
Temperature sensor can be set within the compressor, also can be set in the exhaust pipe of compressor.
To sum up, the abnormal diagnostic device of the delivery temperature detection of multi-line system according to an embodiment of the present invention, by the
Two, which obtain module, obtains the exhaust that module calculates compressor by second according to the pressure at expulsion obtained every the first preset time
Pressure difference value, and module is obtained when pressure at expulsion difference is more than or equal to preset pressure threshold value by third, it is default to obtain first
Minimum value in time in delivery temperature, and then by the second judgment module according to the current exhaust gas temperature and minimum value of compressor
Between delivery temperature difference judge that the delivery temperature of multi-line system detects whether exception, thereby, it is possible to guarantee compressor arrange
The accuracy of gas temperature detection promotes user experience convenient for improving the reliability of multi-line system.In addition, can judge it is multi-joint
After the delivery temperature detection exception of machine system, multi-line system is controlled by the second control module and is shut down, thereby, it is possible to avoid out
The problems such as multi-line system collapse caused by now being detected extremely because of delivery temperature, damage multi-line system component.
Further, the invention proposes a kind of multi-line systems.
Fig. 5 is the block diagram of multi-line system according to an embodiment of the present invention.As shown in figure 5, the multi-line system 1000
The abnormal diagnostic device 100 of the delivery temperature detection of multi-line system including above-described embodiment.
The multi-line system of the embodiment of the present invention is filled using the abnormal diagnosis of the delivery temperature detection of above-mentioned multi-line system
It sets, the delivery temperature that can diagnose multi-line system detects whether exception, it is convenient for improving the reliability of multi-line system as a result,
Promote user experience.
It should be noted that in flow charts indicate or logic and/or step described otherwise above herein, for example,
It is considered the order list of the executable instruction for realizing logic function, may be embodied in any computer can
Read in medium, for instruction execution system, device or equipment (such as computer based system, including the system of processor or its
He can be from instruction execution system, device or equipment instruction fetch and the system executed instruction) it uses, or combine these instruction executions
System, device or equipment and use.For the purpose of this specification, " computer-readable medium " can be it is any may include, store,
Communicate, propagate, or transport program is for instruction execution system, device or equipment or combines these instruction execution systems, device or sets
The standby and device that uses.The more specific example (non-exhaustive list) of computer-readable medium include the following: have one or
The electrical connection section (electronic device) of multiple wirings, portable computer diskette box (magnetic device), random access memory (RAM), only
It reads memory (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable light
Disk read-only memory (CDROM).In addition, computer-readable medium can even is that the paper that can print described program on it or its
His suitable medium, because can then be edited for example by carrying out optical scanner to paper or other media, be interpreted or must
It is handled when wanting with other suitable methods electronically to obtain described program, is then stored in computer storage
In.
It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned
In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
Centainly refer to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
One or more embodiment or examples in can be combined in any suitable manner.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or
Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (12)
1. a kind of abnormal diagnostic method of the delivery temperature detection of multi-line system, the multi-line system includes compressor,
Be characterized in that, the diagnostic method the following steps are included:
When the multi-line system powers on booting operation, the pressure at expulsion of the compressor is obtained every the first preset time,
And the delivery temperature of the compressor is obtained in real time；
The pressure at expulsion difference of the compressor is calculated according to the pressure at expulsion obtained every first preset time, and is judged
Whether the pressure at expulsion difference is more than or equal to preset pressure threshold value；
If the pressure at expulsion difference is more than or equal to preset pressure threshold value, the exhaust in first preset time is obtained
Minimum value in temperature, and sentenced according to the delivery temperature difference between the current exhaust gas temperature of the compressor and the minimum value
The delivery temperature for the multi-line system of breaking detects whether exception.
2. the abnormal diagnostic method of the delivery temperature detection of multi-line system as described in claim 1, which is characterized in that described
The multi-line system is judged according to the delivery temperature difference between the current exhaust gas temperature of the compressor and the minimum value
Delivery temperature detect whether abnormal include:
Judge whether the delivery temperature difference between the current exhaust gas temperature of the compressor and the minimum value is less than default temperature
Spend threshold value；
If the delivery temperature difference between the current exhaust gas temperature of the compressor and the minimum value is less than the default temperature
Threshold value is spent, then judges that the delivery temperature detection of the multi-line system is abnormal；
If the delivery temperature difference between the current exhaust gas temperature of the compressor and the minimum value is more than or equal to described pre-
If temperature threshold, then judge that the delivery temperature detection of the multi-line system is normal.
3. the abnormal diagnostic method of the delivery temperature detection of multi-line system as claimed in claim 1 or 2, which is characterized in that
Further include:
If the pressure at expulsion difference is less than the preset pressure threshold value, the multi-line system continuous service is controlled.
4. the abnormal diagnostic method of the delivery temperature detection of multi-line system as claimed in claim 2, which is characterized in that sentencing
After the delivery temperature detection exception for the multi-line system of breaking, controls the multi-line system and shut down, and export fault cues letter
Breath.
5. the abnormal diagnostic method of the delivery temperature detection of multi-line system as described in claim 1, which is characterized in that pass through
Exhaust gas temperature sensor detects the delivery temperature of the multi-line system, wherein the exhaust gas temperature sensor is arranged described
In compressor, or it is arranged in the exhaust pipe of the compressor.
6. a kind of non-transitorycomputer readable storage medium, is stored thereon with computer program, which is characterized in that the program exists
The delivery temperature detection of multi-line system according to any one of claims 1 to 5 abnormal diagnosis is realized when execution processed
Method.
7. a kind of abnormal diagnostic device of the delivery temperature detection of multi-line system, the multi-line system includes compressor,
It is characterized in that, the diagnostic device includes:
First obtains module, described in being obtained every the first preset time when the multi-line system powers on booting operation
The pressure at expulsion of compressor, and the delivery temperature of the compressor is obtained in real time；
Second obtains module, for calculating the row of the compressor according to the pressure at expulsion obtained every first preset time
Atmospheric pressure difference；
First judgment module, for judging whether the pressure at expulsion difference is more than or equal to preset pressure threshold value；
Third obtains module, for it is pre- to obtain described first when the pressure at expulsion difference is more than or equal to preset pressure threshold value
If the minimum value in the time in the delivery temperature；
Second judgment module, it is poor for the delivery temperature between the current exhaust gas temperature and the minimum value according to the compressor
Value judges that the delivery temperature of the multi-line system detects whether exception.
8. the abnormal diagnostic device of the delivery temperature detection of multi-line system as claimed in claim 7, which is characterized in that described
Second judgment module is specifically used for:
Judge whether the delivery temperature difference between the current exhaust gas temperature of the compressor and the minimum value is less than default temperature
Spend threshold value；
Delivery temperature difference between the current exhaust gas temperature and the minimum value of the compressor is less than the preset temperature
When threshold value, judge that the delivery temperature detection of the multi-line system is abnormal；
Delivery temperature difference between the current exhaust gas temperature and the minimum value of the compressor is more than or equal to described default
When temperature threshold, judge that the delivery temperature detection of the multi-line system is normal.
9. the abnormal diagnostic device of the delivery temperature detection of multi-line system as claimed in claim 7 or 8, which is characterized in that
Further include:
First control module, for controlling the multi-connected machine when the pressure at expulsion difference is less than the preset pressure threshold value
Systems stay operation.
10. the abnormal diagnostic device of the delivery temperature detection of multi-line system as claimed in claim 8, which is characterized in that also
Include:
Second control module, for controlling the multi-connected machine after the delivery temperature for judging the multi-line system detects exception
System-down, and export fault cues information.
11. the abnormal diagnostic device of the delivery temperature detection of multi-line system as claimed in claim 7, which is characterized in that logical
Cross the delivery temperature that exhaust gas temperature sensor detects the multi-line system, wherein the exhaust gas temperature sensor is arranged in institute
It states in compressor, or is arranged in the exhaust pipe of the compressor.
12. a kind of multi-line system, which is characterized in that including described in any item multi-line systems as claim in claims 7-11
The abnormal diagnostic device of delivery temperature detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710633636.3A CN107421071B (en) | 2017-07-28 | 2017-07-28 | Diagnostic method, the device of multi-line system and its delivery temperature detection exception |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710633636.3A CN107421071B (en) | 2017-07-28 | 2017-07-28 | Diagnostic method, the device of multi-line system and its delivery temperature detection exception |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107421071A CN107421071A (en) | 2017-12-01 |
| CN107421071B true CN107421071B (en) | 2019-12-03 |
Family
ID=60431585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710633636.3A Active CN107421071B (en) | 2017-07-28 | 2017-07-28 | Diagnostic method, the device of multi-line system and its delivery temperature detection exception |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107421071B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108870690B (en) * | 2018-05-24 | 2020-05-15 | 广东美的制冷设备有限公司 | Compressor, air conditioner, operation control method, and computer-readable storage medium |
| CN113834207A (en) * | 2020-06-24 | 2021-12-24 | 广东美的制冷设备有限公司 | Control method for heating of compressor winding, air conditioner and storage medium |
| CN115306691A (en) * | 2022-06-30 | 2022-11-08 | 青岛海尔智慧电器设备有限公司 | Compressor control method and device, medium and compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811294A (en) * | 2005-01-26 | 2006-08-02 | 海尔集团公司 | Sub air conditioner heating starting and controlling method for concatenate air conditioner |
| CN104747426A (en) * | 2015-03-20 | 2015-07-01 | 苏州首旗信息科技有限公司 | Compressor remote fault diagnosis system |
| CN105135591A (en) * | 2015-07-01 | 2015-12-09 | 西安理工大学 | Train air conditioning unit fault diagnosing method based on multi-classification strategy |
| CN105627651A (en) * | 2016-01-19 | 2016-06-01 | 珠海格力电器股份有限公司 | Control method of compression condensing unit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8069651B2 (en) * | 2007-08-30 | 2011-12-06 | Caterpillar Inc. | Machine, engine system and operating method |
| JP2009168339A (en) * | 2008-01-16 | 2009-07-30 | Calsonic Kansei Corp | Air conditioner and its control method |
-
2017
- 2017-07-28 CN CN201710633636.3A patent/CN107421071B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1811294A (en) * | 2005-01-26 | 2006-08-02 | 海尔集团公司 | Sub air conditioner heating starting and controlling method for concatenate air conditioner |
| CN104747426A (en) * | 2015-03-20 | 2015-07-01 | 苏州首旗信息科技有限公司 | Compressor remote fault diagnosis system |
| CN105135591A (en) * | 2015-07-01 | 2015-12-09 | 西安理工大学 | Train air conditioning unit fault diagnosing method based on multi-classification strategy |
| CN105627651A (en) * | 2016-01-19 | 2016-06-01 | 珠海格力电器股份有限公司 | Control method of compression condensing unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107421071A (en) | 2017-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107421071B (en) | Diagnostic method, the device of multi-line system and its delivery temperature detection exception | |
| JP5930043B2 (en) | Failure diagnosis device for fuel level sensor and failure diagnosis method for fuel level sensor | |
| US9127611B2 (en) | Method for monitoring an electromotively driven fuel pump and fuel feed unit having a fuel pump | |
| US9459324B2 (en) | Device and method for the redundant determination of a battery current flowing through the poles of a battery | |
| CN109083756B (en) | Engine air inlet fault detection method and device | |
| CN107255353A (en) | Multiple on-line system and its abnormal diagnostic method of delivery temperature detection, device | |
| EP3379218B1 (en) | Method for providing a diagnostic on a combined humidity and temperature sensor | |
| JP2006226135A (en) | Method and device for failure diagnosis of manifold pressure sensor | |
| US10180100B2 (en) | Cooling system and operation method of electric oil pump in cooling system | |
| CN111439127A (en) | Vehicle and battery pack fault detection method and device | |
| US6687592B2 (en) | Power train monitoring | |
| KR20190029186A (en) | Fault diagnosis of timer for engine off time monitoring | |
| JP2007118701A (en) | Abnormality detection processor and abnormality detecting and processing method | |
| US11746958B2 (en) | High pressure container system and fuel cell vehicle | |
| CN105697168B (en) | Method and device for diagnosing an additional heating function of an air mass sensor | |
| JP2019163948A (en) | Monitor device of battery | |
| JP5504696B2 (en) | Fault diagnosis device for voltage sensor | |
| JP7055873B2 (en) | In-vehicle electronic control device | |
| JP4992373B2 (en) | Diagnostic device for temperature detection means | |
| KR102294493B1 (en) | Method and apparatus for diagnosing error of variable capacity oil pump | |
| SE1350438A1 (en) | Device for fuel supply and associated process | |
| JP2005265454A (en) | Fault diagnosis device for vehicle | |
| SE1350440A1 (en) | Monitoring unit, and a method associated with a monitoring unit | |
| US20190188104A1 (en) | Method and apparatus for monitoring memory and for displaying use in electronic control device | |
| CN114320636B (en) | Fault diagnosis method for throttle position sensor, vehicle and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |