CN105004492B - Method and device for detecting leakage of refrigerant of air conditioning unit - Google Patents
Method and device for detecting leakage of refrigerant of air conditioning unit Download PDFInfo
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- CN105004492B CN105004492B CN201510420258.1A CN201510420258A CN105004492B CN 105004492 B CN105004492 B CN 105004492B CN 201510420258 A CN201510420258 A CN 201510420258A CN 105004492 B CN105004492 B CN 105004492B
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000004378 air conditioning Methods 0.000 title abstract description 7
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000012360 testing method Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 206010016256 fatigue Diseases 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000010725 compressor oil Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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Abstract
The invention discloses a method and a device for detecting refrigerant leakage of an air conditioning unit. Wherein, the method comprises the following steps: determining the current running state of a compressor in an air conditioning unit; detecting the pressure value of the compressor in the current operation state, and acquiring a preset detection condition corresponding to the current operation state; and determining that the refrigerant leaks when the pressure value meets the preset detection condition. The invention solves the technical problem that the refrigerant leakage detection of the compressor under different running states is inaccurate.
Description
Technical field
The present invention relates to air-conditioner field, a kind of leaked in particular to air-conditioner set refrigerant detection method and
Device.
Background technology
When small scale leakage occurs in the refrigerant of air-conditioning system (such as refrigeration system), compressor oil return is easily caused not
Foot, longtime running easily causes mechanical failure to compressor；When there is vast scale leakage in the refrigerant of air-conditioning system, air-conditioning system
The compressor of system easily triggers compressor to burn due to being run beyond safe range.
Whether current technology is leaked using pressure switch or pressure sensor detection refrigerant, when what is detected
When low voltage value is less than setting value, protection instruction is sent, stops complete machine operation, but air-conditioning system is bringing into operation to stable
During, due to the influence of outer work condition (such as start and water temperature), also occur that low voltage value is less than the phenomenon of setting value, now
Protecting by mistake easily occurs in system, but actually system is in itself without leakage of refrigerant.
For it is above-mentioned the problem of, effective solution is not yet proposed at present.
The content of the invention
The embodiments of the invention provide a kind of detection method of air-conditioner set refrigerant leakage and device, at least to solve pressure
The inaccurate technical problem of refrigerant leak detection of the contracting machine under different running statuses.
There is provided the detection method that a kind of air-conditioner set refrigerant is leaked, bag for one side according to embodiments of the present invention
Include：Determine the current operating conditions of the compressor in air-conditioner set；Detect the compressor under the current operating conditions
Pressure value, and obtain default testing conditions corresponding with the current operating conditions；The default inspection is met in the pressure value
During survey condition, determine that refrigerant is leaked.
Another aspect according to embodiments of the present invention, additionally provides a kind of detection means of air-conditioner set refrigerant leakage,
Including：Determining unit, the current operating conditions for determining the compressor in air-conditioner set；Detection unit, it is described for detecting
Pressure value of the compressor under the current operating conditions；Acquiring unit, it is corresponding with the current operating conditions for obtaining
Default testing conditions；Processing unit, for when the pressure value meets the default testing conditions, determining that refrigerant is leaked.
In embodiments of the present invention, the current operating conditions of the compressor in air-conditioner set are determined；Detect that the compressor exists
Pressure value under the current operating conditions, and obtain default testing conditions corresponding with the current operating conditions；In the pressure value
When meeting the default testing conditions, determine that refrigerant is leaked.Let out so as to carry out refrigerant according to the running status of current compressor
The detection of leakage, and then solve the inaccurate technical problem of refrigerant leak detection of the compressor under different running statuses.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is a kind of method signal of the detection of optional air-conditioner set refrigerant leakage according to embodiments of the present invention
Figure；
Fig. 2 is the method signal of the detection of another optional air-conditioner set refrigerant leakage according to embodiments of the present invention
Figure；
Fig. 3 is that a kind of structure of the detection means of optional air-conditioner set refrigerant leakage according to embodiments of the present invention is shown
It is intended to；
Fig. 4 is the structure of the detection means of another optional air-conditioner set refrigerant leakage according to embodiments of the present invention
Schematic diagram；
Fig. 5 is the structure of the detection means of another optional air-conditioner set refrigerant leakage according to embodiments of the present invention
Schematic diagram.
Embodiment
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, should all belong to the model that the present invention is protected
Enclose.
It should be noted that term " first " in description and claims of this specification and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so using
Data can exchange in the appropriate case, so as to embodiments of the invention described herein can with except illustrating herein or
Order beyond those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover
Lid is non-exclusive to be included, for example, the process, method, system, product or the equipment that contain series of steps or unit are not necessarily limited to
Those steps or unit clearly listed, but may include not list clearly or for these processes, method, product
Or the intrinsic other steps of equipment or unit.
According to embodiments of the present invention there is provided a kind of detection method embodiment of air-conditioner set refrigerant leakage, it is necessary to say
It is bright, it can be held the step of the flow of accompanying drawing is illustrated in the computer system of such as one group computer executable instructions
OK, and, although show logical order in flow charts, but in some cases, can be with different from order herein
Perform shown or described step.
Fig. 1 is a kind of detection method of air-conditioner set refrigerant leakage according to embodiments of the present invention, as shown in figure 1, should
The executive agent of method can be detection means, and this method comprises the following steps：
Step S102, the compressor determined in air-conditioner set current operating conditions.
Wherein, the running status includes holding state (i.e. the compressor is also not actuated) and starting state.
Step S104, pressure value of the compressor in this prior under running status is detected, and obtained and the current operation shape
The corresponding default testing conditions of state.
Specifically, the aspirating air pipe of the compressor can be gathered by pressure acquisition device, is obtained under current operating conditions
Pressure value, the pressure acquisition device can be pressure sensor or pressure switch, detection means generation detection signal hair
Pressure acquisition device is given, the pressure acquisition device gathers pressure value after the detection signal is received.
Step S106, when the pressure value meets the default testing conditions, determine that refrigerant is leaked.
By using above-mentioned steps, the current operating conditions of the compressor in air-conditioner set are determined；Detect that the compressor exists
Pressure value under the current operating conditions, and obtain default testing conditions corresponding with the current operating conditions；In the pressure value
When meeting the default testing conditions, determine that refrigerant is leaked.Let out so as to carry out refrigerant according to the running status of current compressor
The detection of leakage, and then solve the inaccurate technical problem of refrigerant leak detection of the compressor under different running statuses.
Alternatively, when the current operating conditions of the compressor are holding state, the default testing conditions are default pre-
Level pressure force value, when the pressure value is less than the scheduled pressure value, determines that the refrigerant is leaked；It is somebody's turn to do when the pressure value is more than or equal to
During scheduled pressure value, enabled instruction is generated, wherein, the enabled instruction is used to start the compressor.
Specifically, on air-conditioner set after electricity, when detection means determines that now compressor is in holding state (i.e. compressor
Do not open), pressure value of the compressor under the holding state is detected, when it is determined that the pressure value is less than scheduled pressure value, really
Fixed refrigerant leakage, when pressure value is more than or equal to the scheduled pressure value, it is determined that the refrigerant is not leaked, and generation is opened
Dynamic instruction, and the enabled instruction is sent to compressor to start compressor, so, detect whether occur before compressor start
The leakage of refrigerant, so as to avoid when compressor is also not actuated because refrigerant leakage causes when starting compressor to pressure
The damage that contracting machine is caused.
Alternatively, when the current operating conditions of the compressor are starting state, in the compressor start and reach default
After time, the pressure value of the compressor is detected in predetermined period, is accumulated in the predetermined period and the pressure of the compressor occurs
Value is more than or equal to the number of times of scheduled pressure value, and when the number of times is more than or equal to pre-determined number, determines that the refrigerant is leaked.
In a kind of possible implementation of the present invention, after compressor is started, preset time is recorded, for example, can be passed through
Timer records the preset time；After the preset time is reached, the pressure value of the compressor is detected in predetermined period, and is tired out
The pressure value that the compressor occurs in the predetermined period in meter is more than or equal to the number of times of scheduled pressure value, and is more than in the number of times
Or during equal to pre-determined number, determine that the refrigerant is leaked, when the number of times is less than pre-determined number, the operation of compressor is kept, and
Continuation detects the pressure value of the air-conditioner set in next predetermined period, and carries out the inspection of refrigerant leakage in the manner described above
Survey, so, due to carrying out the detection of refrigerant leakage again after preset time is reached, so as to avoid when compressor just starts
Due to pressure value be less than scheduled pressure value (actually refrigerant may not leaked) caused by error detection the problem of, Jin Erfang
The problem of only causing to protect by mistake due to error detection.
In addition, the pressure value for occurring the compressor in the predetermined period by being accumulated at is more than or equal to scheduled pressure value
Number of times, and when the number of times is more than or equal to pre-determined number, determine that the refrigerant is leaked, it is to avoid because outer work condition fluctuates (example
Such as water temperature) and there is the problem of pressure value causes error detection less than scheduled pressure value, and then prevent from causing to miss due to error detection
The problem of protection.
It should be noted that the setting scope of above-mentioned preset time can be 0.5 minute to 2 minutes, above-mentioned predetermined period
Setting scope can be 1 minute to 2 minutes, above-mentioned pre-determined number can be 2 times to 4 times, and the setting of above-mentioned numerical value is to lift
Example explanation, this is not limited by the present invention.
Alternatively, above-mentioned scheduled pressure value is obtained by below equation：
P=k*y, wherein, P is the scheduled pressure value, and k is parameter preset, and y is the corresponding saturation pressure of system critical-temperature
Power.
It should be noted that stagnation temperature of the system critical-temperature for guarantee air-conditioner set progress normal reliable operation
Degree, when the temperature that air-conditioner set is run exceedes the temperature, can cause compressor damage (such as cause the frosting of compressor so as to
Damage compressor), then the saturation pressure is that the air-conditioner set operates in corresponding pressure in the case of the system critical-temperature
Value.
In addition, k setting scope can be 1.05 to 1.1, this is not limited by the present invention.
Alternatively, it is determined that after refrigerant leakage, sending and referring to for the control for controlling the compressor to stop to the compressor
Order.
Wherein, compressor stops the operation of compressor after the control instruction is received.
Alternatively, it is determined that after refrigerant leakage, the prompting for controlling the warning device to alarm is sent to warning device
Instruction.
It should be noted that before compressor start, because compressor is also not actuated, therefore it is determined that compressor leakage
When, by warning device alert, so as to point out operating personnel to check and repair compressor, opened in compressor
After dynamic, it is determined that during compressor leakage, stopping the operation of compressor and by warning device alert, to point out operation
Personnel are checked and repaired to compressor.
In addition, the warning device can send alarm, user can also be shown to by the terminal of connection, certainly, also may be used
User is shown to the terminal by connection while alarm is sent, this is not limited by the present invention.
By using above-mentioned steps, the detection of refrigerant leakage can be carried out according to the running status of current compressor, is entered
And solve the inaccurate technical problem of refrigerant leak detection of the compressor under different running statuses.
Fig. 2 is a kind of detection method of air-conditioner set refrigerant leakage provided in an embodiment of the present invention, as shown in Fig. 2
In the embodiment of the present invention, the detection means can be controller, and this method includes：
On S201, air-conditioner set after electricity, controller, should by pressure acquisition device detection when it is determined that compressor is not actuated
The pressure value of compressor.
Wherein, the pressure acquisition device can be pressure switch or pressure sensor.
Specifically, the aspirating air pipe of the compressor can be gathered by pressure acquisition device, is obtained under current operating conditions
Pressure value, the pressure acquisition device can be pressure sensor or pressure switch, detection means generation detection signal hair
Pressure acquisition device is given, the pressure acquisition device gathers pressure value after the detection signal is received.
S202, controller judge whether the pressure value is less than scheduled pressure value.
When judged result is to be, step S207 is performed；
When judged result is no, step S203 to step S207 is performed.
Alternatively, above-mentioned scheduled pressure value is obtained by below equation：
P=k*y, wherein, P is the scheduled pressure value, and k is parameter preset, and y is the corresponding saturation pressure of system critical-temperature
Power.
It should be noted that stagnation temperature of the system critical-temperature for guarantee air-conditioner set progress normal reliable operation
Degree, when the temperature that air-conditioner set is run exceedes the temperature, can cause compressor damage (such as cause the frosting of compressor so as to
Damage compressor), then the saturation pressure is that the air-conditioner set operates in corresponding pressure in the case of the system critical-temperature
Value.
In addition, k setting scope can be 1.05 to 1.1, this is not limited by the present invention.
S203, controller generation enabled instruction, and the enabled instruction is sent to compressor, to start compressor.
Wherein, the enabled instruction is used to start the compressor.
S204, start and when reaching preset time in the compressor reducer, controller detects the compressor in predetermined period
Pressure value.
S205, controller are accumulated at the pressure value for occurring the compressor in the predetermined period and are more than or equal to scheduled pressure value
Number of times, and the number of times be more than or equal to pre-determined number when, determine the refrigerant leak.
In a kind of possible implementation of the present invention, after compressor is started, preset time is recorded, for example, can be passed through
Timer records the preset time；After the preset time is reached, the pressure value of the compressor is detected in predetermined period, and is tired out
The pressure value that the compressor occurs in the predetermined period in meter is more than or equal to the number of times of scheduled pressure value, and is more than in the number of times
Or during equal to pre-determined number, determine that the refrigerant is leaked, when the number of times is less than pre-determined number, the operation of compressor is kept, and
Continuation detects the pressure value of the air-conditioner set in next predetermined period, and carries out the inspection of refrigerant leakage in the manner described above
Survey, so, due to carrying out the detection of refrigerant leakage again after preset time is reached, so as to avoid when compressor just starts
Due to pressure value be less than scheduled pressure value (actually refrigerant may not leaked) caused by error detection the problem of, Jin Erfang
The problem of only causing to protect by mistake due to error detection.
In addition, the pressure value for occurring the compressor in the predetermined period by being accumulated at is more than or equal to scheduled pressure value
Number of times, and when the number of times is more than or equal to pre-determined number, determine that the refrigerant is leaked, it is to avoid because outer work condition fluctuates (example
Such as water temperature) and there is the problem of pressure value causes error detection less than scheduled pressure value, and then prevent from causing to miss due to error detection
The problem of protection.
It should be noted that the setting scope of above-mentioned preset time can be 0.5 minute to 2 minutes, above-mentioned predetermined period
Setting scope can be 1 minute to 2 minutes, above-mentioned pre-determined number can be 2 times to 4 times, and the setting of above-mentioned numerical value is to lift
Example explanation, this is not limited by the present invention.
S206, controller send the control instruction for controlling the compressor to stop to compressor, to control the compressor
It is out of service.
S207, controller send the hint instructions for controlling the warning device to alarm to warning device, to control the report
Alarm device alert.
It should be noted that before compressor start, because compressor is also not actuated, therefore it is determined that compressor leakage
When, by warning device alert, so as to point out operating personnel to check and repair compressor, opened in compressor
After dynamic, it is determined that during compressor leakage, stopping the operation of compressor and by warning device alert, to point out operation
Personnel are checked and repaired to compressor.
In addition, the warning device can send alarm, user can also be shown to by the terminal of connection, certainly, also may be used
User is shown to the terminal by connection while alarm is sent, this is not limited by the present invention.
By using above-mentioned steps, the detection of refrigerant leakage can be carried out according to the running status of current compressor, is entered
And solve the inaccurate technical problem of refrigerant leak detection of the compressor under different running statuses.
It should be noted that to above method embodiment, in order to be briefly described, therefore it to be all expressed as to a series of action
Combination, but those skilled in the art should know, the present invention is not limited by described sequence of movement, because according to this
Invention, some steps can be carried out sequentially or simultaneously using other.Secondly, those skilled in the art should also know, explanation
Embodiment described in book belongs to preferred embodiment, and involved action and module not necessarily present invention institute are necessary
's.
Fig. 3 is a kind of detection means of air-conditioner set refrigerant leakage provided in an embodiment of the present invention, as shown in figure 3, should
Detection means includes：
Determining unit 301, the current operating conditions for determining the compressor in air-conditioner set；
Detection unit 302, for detecting pressure value of the compressor in this prior under running status；
Acquiring unit 303, for obtaining default testing conditions corresponding with the current operating conditions；
Processing unit 304, for when the pressure value meets the default testing conditions, determining that refrigerant is leaked.
Alternatively, when the current operating conditions of the compressor are holding state, the default testing conditions are default pre-
Level pressure force value, the processing unit 304, for when the pressure value is less than the scheduled pressure value, determining that the refrigerant is leaked.
Alternatively, the processing unit 304, is additionally operable to when the pressure value is more than or equal to the scheduled pressure value, generation is opened
Dynamic instruction, wherein, the enabled instruction is used to start the compressor.
Alternatively, the processing unit 304 is additionally operable to, when the current operating conditions of the compressor are starting state, at this
Compressor start and reach after preset time, the pressure value of the compressor is detected in predetermined period, the predetermined period is accumulated at
The pressure value for the compressor inside occur is more than or equal to the number of times of scheduled pressure value, and is more than or equal to pre-determined number in the number of times
When, determine that the refrigerant is leaked.
Alternatively, as shown in figure 4, the device also includes：
First transmitting element 305, for after determination refrigerant leakage, being sent to the compressor for controlling the compression
The control instruction that machine stops.
Alternatively, the scheduled pressure value is obtained by below equation：
P=k*y, wherein, P is the scheduled pressure value, and k is parameter preset, and y is the corresponding saturation pressure of system critical-temperature
Power.
Alternatively, as shown in figure 5, the device also includes：
Second transmitting element 306, for after determination refrigerant leakage, being sent to warning device for controlling the alarm
The hint instructions of device alarm.
By using above-mentioned detection device, the inspection of refrigerant leakage can be carried out according to the running status of current compressor
Survey, and then solve the inaccurate technical problem of refrigerant leak detection of the compressor under different running statuses.
Affiliated those skilled in the art can be understood that, for convenience and simplicity of description, the inspection of foregoing description
Specific work process and the description of device are surveyed, the corresponding process in preceding method embodiment is may be referred to, will not be repeated here.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
In the above embodiment of the present invention, the description to each embodiment all emphasizes particularly on different fields, and does not have in some embodiment
The part of detailed description, may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents, others can be passed through
Mode is realized.Wherein, device embodiment described above is only schematical, such as division of described unit, Ke Yiwei
A kind of division of logic function, can there is other dividing mode when actually realizing, such as multiple units or component can combine or
Person is desirably integrated into another system, or some features can be ignored, or does not perform.Another, shown or discussed is mutual
Between coupling or direct-coupling or communication connection can be the INDIRECT COUPLING or communication link of unit or module by some interfaces
Connect, can be electrical or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On unit.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used
When, it can be stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially
The part contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are to cause a computer
Equipment (can for personal computer, server or network equipment etc.) perform each embodiment methods described of the invention whole or
Part steps.And foregoing storage medium includes：USB flash disk, read-only storage (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can be with store program codes
Medium.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (12)
1. a kind of detection method of air-conditioner set refrigerant leakage, it is characterised in that including：
Determine the current operating conditions of the compressor in air-conditioner set；
Pressure value of the compressor under the current operating conditions is detected, and is obtained corresponding with the current operating conditions
Default testing conditions；
When the pressure value meets the default testing conditions, determine that refrigerant is leaked；
Wherein, it is described to meet described default in the pressure value when the current operating conditions of the compressor are starting state
During testing conditions, determine that refrigerant leakage includes：
In the compressor start and after reaching preset time, the pressure value of the compressor is detected in predetermined period, is added up
The pressure value for occurring the compressor in the predetermined period is more than or equal to the number of times of scheduled pressure value, and in the number of times
During more than or equal to pre-determined number, the refrigerant leakage is determined.
2. according to the method described in claim 1, it is characterised in that in the current operating conditions of the compressor be holding state
When, the default testing conditions are default scheduled pressure value, wherein, it is described to meet the default detector bar in the pressure value
During part, determine that refrigerant leakage includes：
When the pressure value is less than the scheduled pressure value, the refrigerant leakage is determined.
3. method according to claim 2, it is characterised in that when the pressure value is more than or equal to the scheduled pressure value
When, enabled instruction is generated, wherein, the enabled instruction is used to start the compressor.
4. according to the method described in claim 1, it is characterised in that after the determination refrigerant leakage, methods described is also wrapped
Include：The control instruction for controlling the compressor to stop is sent to the compressor.
5. method according to claim 4, it is characterised in that the scheduled pressure value is obtained by below equation：
P=k*y, wherein, P is the scheduled pressure value, and k is parameter preset, and y is the corresponding saturation pressure of system critical-temperature.
6. method according to claim 5, it is characterised in that after the determination refrigerant leakage, methods described is also wrapped
Include：The hint instructions for controlling the warning device alarm are sent to warning device.
7. a kind of detection means of air-conditioner set refrigerant leakage, it is characterised in that including：
Determining unit, the current operating conditions for determining the compressor in air-conditioner set；
Detection unit, for detecting pressure value of the compressor under the current operating conditions；
Acquiring unit, for obtaining default testing conditions corresponding with the current operating conditions；
Processing unit, for when the pressure value meets the default testing conditions, determining that refrigerant is leaked；
Wherein, the processing unit is additionally operable to, when the current operating conditions of the compressor are starting state, in the compression
Machine starts and reached after preset time, and the pressure value of the compressor is detected in predetermined period, the predetermined period is accumulated at
The interior pressure value for the compressor occur is more than or equal to the number of times of scheduled pressure value, and in the number of times more than or equal to predetermined
During number of times, the refrigerant leakage is determined.
8. detection means according to claim 7, it is characterised in that in the current operating conditions of the compressor be standby
During state, the default testing conditions are default scheduled pressure value, the processing unit, for being less than institute when the pressure value
When stating scheduled pressure value, the refrigerant leakage is determined.
9. detection means according to claim 8, it is characterised in that the processing unit, is additionally operable to work as the pressure value
During more than or equal to the scheduled pressure value, enabled instruction is generated, wherein, the enabled instruction is used to start the compressor.
10. detection means according to claim 7, it is characterised in that described device also includes：
First transmitting element, for after the determination refrigerant leakage, being sent to the compressor for controlling the compression
The control instruction that machine stops.
11. detection means according to claim 7, it is characterised in that the scheduled pressure value is obtained by below equation：
P=k*y, wherein, P is the scheduled pressure value, and k is parameter preset, and y is the corresponding saturation pressure of system critical-temperature.
12. detection means according to claim 7, it is characterised in that described device also includes：
Second transmitting element, for after the determination refrigerant leakage, being sent to warning device for controlling the alarm to fill
Put the hint instructions of alarm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510420258.1A CN105004492B (en) | 2015-07-16 | 2015-07-16 | Method and device for detecting leakage of refrigerant of air conditioning unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510420258.1A CN105004492B (en) | 2015-07-16 | 2015-07-16 | Method and device for detecting leakage of refrigerant of air conditioning unit |
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| CN105004492B true CN105004492B (en) | 2017-10-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6269756B1 (en) * | 2016-09-02 | 2018-01-31 | ダイキン工業株式会社 | Refrigeration equipment |
| CN106524418B (en) * | 2016-11-10 | 2019-03-12 | 邯郸美的制冷设备有限公司 | Detection method, detection system and the air conditioner of air-conditioner coolant leakage |
| CN111033154B (en) * | 2017-08-18 | 2022-02-22 | 三菱电机株式会社 | Air conditioner |
| CN107906814A (en) * | 2017-11-06 | 2018-04-13 | 广东美的暖通设备有限公司 | Starting up's method, starting up's system, readable storage medium storing program for executing and refrigeration plant |
| CN110762743B (en) * | 2018-07-26 | 2021-05-18 | 奥克斯空调股份有限公司 | Air conditioner and air conditioner refrigerant leakage detection method |
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| CN104006934B (en) * | 2014-06-05 | 2017-02-15 | 珠海格力电器股份有限公司 | Detection system, method and device and air conditioner |
| CN104655365A (en) * | 2014-12-30 | 2015-05-27 | 海信科龙电器股份有限公司 | Method for detecting refrigerant leakage and air conditioner |
| CN104633864B (en) * | 2015-02-05 | 2018-02-27 | 珠海格力电器股份有限公司 | Refrigerant leakage detection method and device for air conditioner and air conditioner outdoor unit |
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