CN109737654A - A kind of choke detecting method and the unit for being able to detect blocking - Google Patents
A kind of choke detecting method and the unit for being able to detect blocking Download PDFInfo
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- CN109737654A CN109737654A CN201811510670.2A CN201811510670A CN109737654A CN 109737654 A CN109737654 A CN 109737654A CN 201811510670 A CN201811510670 A CN 201811510670A CN 109737654 A CN109737654 A CN 109737654A
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000001704 evaporation Methods 0.000 claims abstract description 73
- 238000012544 monitoring process Methods 0.000 claims description 7
- 238000004590 computer program Methods 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000013507 mapping Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims 1
- 238000000465 moulding Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000010025 steaming Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The present invention discloses a kind of choke detecting method and the unit for being able to detect blocking.Wherein, this method comprises: obtaining the evaporating temperature of evaporator；Determine that the throttling set of unit is in unplugged state, whole blocked states or Partial Blocking state according to the evaporating temperature；In the case where the throttling set is in Partial Blocking state, temperature and temperature after throttling before the throttling of the throttling set are obtained, blocking position is determined according to temperature after temperature before the throttling and the throttling.By means of the invention it is possible to detect whether throttling set blocks and be accurately positioned blocking position automatically, the problem of preventing caused by blocking due to throttling set without finding in time low system heat exchange efficiency, compressor air-discharging high temperature.The frequent start and stop of unit are avoided, compressor is damaged.
Description
Technical field
The present invention relates to machine set technology fields, in particular to a kind of choke detecting method and are able to detect blocking
Unit.
Background technique
In existing refrigerating plant, including compressor, condenser, evaporator and throttling set (such as throttle capillary tube),
And it is pre-charged with a certain amount of refrigerant.Air conditioner in the process of running, often (such as welds because adulterating some impurity in system
Slag, water etc.), it is blocked up alternatively, occurring weldering when being welded, such air conditioner is easy to appear section after running for a period of time
Device blocking is flowed, compressor air-discharging high temperature is caused, damages compressor.Therefore, how to detect whether throttling set blocks very
It is necessary.
For the susceptible to plugging problem of throttling set in the prior art, currently no effective solution has been proposed.
Summary of the invention
A kind of choke detecting method is provided in the embodiment of the present invention and is able to detect the unit of blocking, to solve existing skill
The susceptible to plugging problem of throttling set in art.
In order to solve the above technical problems, the present invention provides a kind of choke detecting methods, wherein this method comprises: obtaining
The evaporating temperature of evaporator；Determine that the throttling set of unit is in unplugged state, all blocking shape according to the evaporating temperature
State or Partial Blocking state；In the case where the throttling set is in Partial Blocking state, the throttling set is obtained
Temperature and temperature after throttling, determine blocking position according to temperature after temperature before the throttling and the throttling before throttling.
Further, determine that the throttling set of unit is in unplugged state, all blocking shape according to the evaporating temperature
State or Partial Blocking state, comprising: by the default evaporating temperature Tz1 of the evaporating temperature Tz and first, the second default evaporation temperature
Degree Tz2 is compared；According to comparison result determine unit throttling set be in unplugged state, whole blocked state or
Partial Blocking state.
Further, according to comparison result determine unit throttling set be in unplugged state, whole blocked state or
Person's Partial Blocking state, comprising: if Tz > Tz1, it is determined that the throttling set is in unplugged state；If Tz <
Tz2, it is determined that the throttling set is in whole blocked states；If Tz2 < Tz < Tz1, it is determined that at the throttling set
In Partial Blocking state.
Further, determine that the throttling set of unit is in unplugged state, all blocking shape according to the evaporating temperature
After state or Partial Blocking state, the method also includes: in the case where the throttling set is in unplugged state,
Triggering unit enters ordinary control mode；Wherein, the ordinary control mode includes: to obtain evaporator at interval of preset time
Evaporating temperature, and determine that the throttling set of unit is in unplugged state, whole blocked state according to the evaporating temperature
Or Partial Blocking state.
Further, blocking position is determined according to temperature after temperature before the throttling and the throttling, comprising: according to institute
Temperature Th after throttling preceding temperature Tq and the throttling is stated, throttling mean temperature T is calculated?；Wherein, T?=(Tq+Th)/2；By institute
State throttling mean temperature T?It is compared with default throttle temperature T0, blocking position is determined according to comparison result.
Further, by the throttling mean temperature T?It is compared with default throttle temperature T0, it is true according to comparison result
Determine blocking position, comprising: if T?>=T0, it is determined that blocking position pipeline section after throttling；If T?< T0, it is determined that blocking
Position pipeline section before throttling.
Further, after determining blocking position according to temperature after temperature before the throttling and the throttling, the method
Further include: it generates blocking and reports and be sent to user；Wherein, record has blocking position in the blocking report；According to the steaming
Hair temperature determines that the throttling set of unit is in after unplugged state, whole blocked states or Partial Blocking state, described
Method further include: in the case where the throttling set is in whole blocked states, generates blocking and report and be sent to user；
Wherein, record has blocking position to be located at throttling line segments in the blocking report.
Further, the method also includes: monitoring generate blocking report number；If generating time of plain color report
Number is more than preset times, then controls unit closing, and user is prompted to need to safeguard the throttling set.
Further, the described first default evaporating temperature Tz1 is the steaming that measures under standard condition of unit of normal type
Send out the evaporating temperature of device；The second default evaporating temperature Tz2 is that the unit of normal type blocks the section under standard condition
After flowing device, the evaporating temperature of the evaporator measured.
Further, the default throttle temperature T0 be normal type unit measured under standard condition throttling dress
The average value of temperature and temperature after throttling before the throttling set.
Further, the throttling set is throttle capillary tube.
The present invention also provides a kind of units for being able to detect blocking, wherein the unit includes: the evaporation being connected
Device and throttling set, and, blockage detector, for determining the throttling set according to the evaporating temperature of the evaporator
In unplugged state, whole blocked states or Partial Blocking state；Determining that the throttling set is in Partial Blocking shape
In the case where state, blocking position is determined according to temperature after temperature before the throttling of the throttling set and throttling.
Further, the unit further include: first sensor is arranged on the pipeline of evaporator, described for obtaining
The evaporating temperature of evaporator；Pipeline section before the throttling of the throttling set is arranged in second sensor, described for obtaining
Temperature before throttling；Pipeline section after the throttling of the throttling set is arranged in 3rd sensor, for obtaining temperature after the throttling.
Further, the blockage detector, comprising: comparison module, for the evaporating temperature Tz and first is pre-
If evaporating temperature Tz1, the second default evaporating temperature Tz2 are compared；State determining module, for being determined according to comparison result
The throttling set of unit is in unplugged state, whole blocked states or Partial Blocking state.
Further, the state determining module is specifically used in the case where Tz > Tz1, determines the throttling set
In unplugged state；In the case where Tz < Tz2, determine that the throttling set is in whole blocked states；In Tz2 < Tz
In the case where < Tz1, determine that the throttling set is in Partial Blocking state.
Further, the blockage detector, further includes: control module, for determining that the throttling set is in
In the case where unplugged state, triggering unit enters ordinary control mode；Wherein, the ordinary control mode include: at interval of
Preset time obtains the evaporating temperature of evaporator, and determines that the throttling set of unit is in unplugged according to the evaporating temperature
State, whole blocked states or Partial Blocking state.
Further, the blockage detector, further includes: computing module, for according to temperature Tq before the throttling and
Temperature Th after the throttling calculates throttling mean temperature T?；Wherein, T?=(Tq+Th)/2；Position determination module is used for institute
State throttling mean temperature T?It is compared with default throttle temperature T0, blocking position is determined according to comparison result.
Further, the position determination module is specifically used in T?In the case where >=T0, determine that blocking position is saving
Pipeline section after stream；In T?In the case where < T0, blocking position pipeline section before throttling is determined.
Further, the blockage detector, further includes: reporting modules, for according to temperature before the throttling and institute
It states after temperature determines blocking position after throttling, generates blocking and report and is simultaneously sent to user；Wherein, remember in the blocking report
Record has blocking position；It is also used in the case where determining that the throttling set is in whole blocked states, generates blocking report simultaneously
It is sent to user；Wherein, record has blocking position to be located at throttling line segments in the blocking report.
Further, the blockage detector, further includes: protective module, for monitoring time for generating blocking report
Number；If the number for generating plain color report is more than preset times, unit closing is controlled, and user is prompted to need to the section
Stream device is safeguarded.
Further, the throttling set is throttle capillary tube.
The present invention also provides a kind of computer readable storage mediums, which is characterized in that the computer-readable storage medium
Matter is stored with the computer program of signal mapping, when the computer program is executed by least one processor, to realize right
It is required that method described in any one of 1-11.
It applies the technical scheme of the present invention, can automatically detect out whether throttling set blocks and be accurately positioned stifled
Position is filled in, prevents that system heat exchange efficiency is low, compressor air-discharging is high caused by blocking due to throttling set without finding in time
The problem of temperature.The frequent start and stop of unit are avoided, compressor is damaged, extend unit service life.
Detailed description of the invention
Fig. 1 is the flow chart of choke detecting method according to an embodiment of the present invention；
Fig. 2 is the flow chart that unit according to an embodiment of the present invention detects blocking automatically；
Fig. 3 is set structure schematic diagram according to an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the unit according to an embodiment of the present invention for being able to detect blocking.
Specific embodiment
Present invention is further described in detail in the following with reference to the drawings and specific embodiments, it should be understood that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
In subsequent description, it is only using the suffix for indicating such as " module ", " component " or " unit " of element
Be conducive to explanation of the invention, itself there is no a specific meaning.Therefore, " module ", " component " or " unit " can mix
Ground uses.
Embodiment one
Fig. 1 is the flow chart of choke detecting method according to an embodiment of the present invention, as shown in Figure 1, this method includes following
Step:
Step S101 obtains the evaporating temperature of evaporator；
Step S102, according to evaporating temperature determine unit throttling set be in unplugged state, whole blocked state or
Person's Partial Blocking state；
Step S103 obtains temperature before the throttling of throttling set in the case where throttling set is in Partial Blocking state
With temperature after throttling, blocking position is determined according to temperature after temperature before throttling and throttling.
Through this embodiment, it can automatically detect out whether throttling set blocks and be accurately positioned blocking position, prevent
The problem of system heat exchange efficiency is low caused by only due to throttling set blocking without finding in time, compressor air-discharging high temperature.
The frequent start and stop of unit are avoided, compressor is damaged.
The present invention is broadly divided into two stages, and the first stage first determines that the throttling set of unit is according to evaporating temperature
Unplugged state, whole blocked states or Partial Blocking state, second stage are subsequent corresponding for different conditions execution
Operation.It describes in detail separately below.
First stage:
Evaporating temperature Tz is compared with the first default evaporating temperature Tz1, the second default evaporating temperature Tz2；According to than
Relatively result determines that the throttling set of unit is in unplugged state, whole blocked states or Partial Blocking state.
Specifically,
If Tz > Tz1, it is determined that throttling set is in unplugged state；
If Tz < Tz2, it is determined that throttling set is in whole blocked states；
If Tz2 < Tz < Tz1, it is determined that throttling set is in Partial Blocking state.
Based on this, the automatic accurate judgement to the blocked state of throttling set may be implemented.
Second stage:
If it is determined that throttling set is in unplugged state, then triggers unit and enter ordinary control mode；Wherein, conventional
Control model includes: the evaporating temperature of evaporator to be obtained at interval of preset time, and the throttling of unit is determined according to evaporating temperature
Device is in unplugged state, whole blocked states or Partial Blocking state.
If it is determined that throttling set is in whole blocked states, then generates blocking and report and be sent to user；Wherein, it blocks up
Record has blocking position to be located at throttling line segments in plug report.Based on this, blocking specific location can be reported to user, side
Just user repairs.
If it is determined that throttling set is in Partial Blocking state, then according to temperature Th after temperature Tq before throttling and throttling, meter
Calculate throttling mean temperature T?；Wherein, T?=(Tq+Th)/2；Later, by the mean temperature T that throttles?With default throttle temperature T0 into
Row compares, and determines blocking position according to comparison result.
Specifically,
If T?>=T0, it is determined that blocking position pipeline section after throttling；
If T?< T0, it is determined that blocking position pipeline section before throttling.
Based on this, the automatic accurate positioning to the blocking position of throttling set may be implemented.Determine blocking position it
Afterwards, blocking can also be generated to report and be sent to user；Wherein, record has blocking position in blocking report.To facilitate user
Maintenance.
In addition, in order to protect unit using safe, the number of blocking report can be generated with real-time monitoring；If raw
It is more than preset times N at the number that plain color is reported, then controls unit closing, and user is prompted to need to tie up throttling set
Shield.Preset times N can be configured and adjust according to actual needs.
It should be noted that the steaming that the unit that the first default evaporating temperature Tz1 is normal type measures under standard condition
Send out the evaporating temperature of device；Second default evaporating temperature Tz2 is that the unit of normal type blocks throttling set under standard condition
Afterwards, the evaporating temperature of the evaporator measured.Default throttle temperature T0 is the section that the unit of normal type measures under standard condition
The average value of temperature and temperature after throttling before the throttling of stream device.Throttling set in the present embodiment can be throttling capillary
Pipe.
The present embodiment additionally provides a kind of computer readable storage medium, and computer-readable recording medium storage has signal
The computer program of mapping, method when computer program is executed by least one processor, to realize the present embodiment introduction.
Embodiment two
Fig. 2 is the flow chart that unit according to an embodiment of the present invention detects blocking automatically, as shown in Fig. 2, the process packet
It includes:
1) after unit powers on booting, the evaporating temperature of evaporator is obtained, by the default evaporating temperature of evaporating temperature Tz and first
Tz1, the second default evaporating temperature Tz2 are compared；
If 2) Tz > Tz1, it is determined that throttling set is in unplugged state；
If Tz < Tz2, it is determined that throttling set is in whole blocked states；
If Tz2 < Tz < Tz1, it is determined that throttling set is in Partial Blocking state；
3) after determining that throttling set is in unplugged state, control unit enters ordinary control mode, later the process knot
Beam.
4) after determining that throttling set is in Partial Blocking state, temperature Th after obtaining temperature Tq before throttling and throttling, and
Throttling mean temperature T is calculated accordingly?；Wherein, T?=(Tq+Th)/2；Later, by the mean temperature T that throttles?With default throttling temperature
Degree T0 is compared, and determines blocking position according to comparison result；
If 5) T?>=T0, it is determined that blocking position pipeline section after throttling；
If T?< T0, it is determined that blocking position pipeline section before throttling；
6) real-time monitoring generates the number of blocking report；If the number for generating plain color report is more than preset times N,
It controls unit to close, and user is prompted to need to safeguard throttling set.
Embodiment three
Fig. 3 is set structure schematic diagram according to an embodiment of the present invention, as shown in figure 3, the unit includes: to be sequentially connected
Throttle capillary tube, evaporator, compressor, further include condenser, connect with compressor；Cooling tower is connect with condenser.
The present invention is provided with temperature sensor at three, and the first temperature sensor is arranged on the pipeline of evaporator, is used for
Obtain the evaporating temperature of evaporator；Pipeline section before the throttling of throttling set is arranged in second sensor, for obtaining the preceding temperature of throttling
Degree；Pipeline section after the throttling of throttling set is arranged in 3rd sensor, for temperature after acquisition throttling.
After unit powers on booting, each temperature sensor of unit detects the temperature value of its position.It later can be with
Determine that the throttling set of unit is in unplugged state, whole blocked states or Partial Blocking state according to evaporating temperature；?
In the case that throttling set is in Partial Blocking state, blocking position is determined according to temperature after temperature before throttling and throttling.
Through this embodiment, it can automatically detect out whether throttling set blocks and be accurately positioned blocking position, prevent
The problem of system heat exchange efficiency is low caused by only due to throttling set blocking without finding in time, compressor air-discharging high temperature.
The frequent start and stop of unit are avoided, compressor is damaged.
Example IV
Fig. 4 is the structural schematic diagram of the unit according to an embodiment of the present invention for being able to detect blocking, as shown in figure 4, the machine
Group includes: the evaporator and throttling set being connected, and,
Blockage detector determines that throttling set is in unplugged state, whole for the evaporating temperature according to evaporator
Blocked state or Partial Blocking state；In the case where determining that throttling set is in Partial Blocking state, according to throttling set
Throttling before temperature and throttling after temperature determine blocking position.
Above-mentioned unit further include:
First sensor is arranged on an evaporator, for obtaining the evaporating temperature of evaporator；
Pipeline section before the throttling of throttling set is arranged in second sensor, for obtaining the preceding temperature that throttles；
Pipeline section after the throttling of throttling set is arranged in 3rd sensor, for temperature after acquisition throttling.
Sensor is all temperature sensor at the three of above-mentioned setting, for more accurately obtaining the temperature of corresponding position,
To which whether accurate measurements throttling set gets congestion and determine the accurate location of congestion.
Above-mentioned blockage detector may include: comparison module, for the default evaporation of evaporating temperature Tz and first is warm
Degree Tz1, the second default evaporating temperature Tz2 are compared；State determining module, for determining the section of unit according to comparison result
Stream device be in unplugged state, whole blocked state or Partial Blocking state, is specifically used for: the Tz > Tz1 the case where
Under, determine that throttling set is in unplugged state；In the case where Tz < Tz2, determine that throttling set is in all blocking shapes
State；In the case where Tz2 < Tz < Tz1, determine that throttling set is in Partial Blocking state.
Above-mentioned blockage detector, further includes: control module, for determining that throttling set is in unplugged state
In the case of, triggering unit enters ordinary control mode；Wherein, ordinary control mode includes: and obtains to evaporate at interval of preset time
The evaporating temperature of device, and according to evaporating temperature determine unit throttling set be in unplugged state, whole blocked state or
Partial Blocking state.
Above-mentioned blockage detector, further includes: computing module is used for according to temperature Th after temperature Tq before throttling and throttling,
Calculate throttling mean temperature T?；Wherein, T?=(Tq+Th)/2；Position determination module, for the mean temperature T that will throttle?With it is pre-
If throttle temperature T0 is compared, blocking position is determined according to comparison result, is specifically used for: in T?In the case where >=T0, determine
Blocking position pipeline section after throttling；In T?In the case where < T0, blocking position pipeline section before throttling is determined.
Above-mentioned blockage detector, further includes: reporting modules, for being determined according to temperature after temperature before throttling and throttling
After blocking position, generates blocking and report and be sent to user；Wherein, record has blocking position in blocking report；It is also used to
In the case where determining that throttling set is in whole blocked states, generates blocking and report and be sent to user；Wherein, blocking report
Middle record has blocking position to be located at throttling line segments.Based on this, blocking specific location can be reported to user, facilitate user
Maintenance.
Above-mentioned blockage detector, further includes: protective module, for monitoring the number for generating blocking report；If generated
The number of plain color report is more than preset times, then controls unit closing, and user is prompted to need to safeguard throttling set.
Based on this, unit closing can be directly controlled when stopping state is more serious, so that unit be avoided to damage.
It should be noted that the steaming that the unit that the first default evaporating temperature Tz1 is normal type measures under standard condition
Send out the evaporating temperature of device；Second default evaporating temperature Tz2 is that the unit of normal type blocks throttling set under standard condition
Afterwards, the evaporating temperature of the evaporator measured.Default throttle temperature T0 is the section that the unit of normal type measures under standard condition
The average value of temperature and temperature after throttling before the throttling of stream device.Throttling set in the present embodiment can be throttling capillary
Pipe.Throttling set involved in the present embodiment can be throttle capillary tube.Unit in the present embodiment can be air conditioner etc. and set
Standby unit.
From the above description it is found that compared with prior art, the present invention is capable of detecting when whether throttling set blocks up
Plug passes through the ratio of actual temperature value and predetermined temperature limit value that the temperature sensor being set on throttling set detects
Compared with the throttling set to judge unit prevents from causing the heat exchange efficiency of system low due to throttling blockage with the presence or absence of blocking
Under, while causing compressor air-discharging high temperature, damaging the generation of the case where compressor.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant be intended to it is non-
It is exclusive to include, so that the process, method, article or the device that include a series of elements not only include those elements,
It but also including other elements that are not explicitly listed, or further include for this process, method, article or device institute
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or device including the element.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but many situations
It is lower the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to the prior art
The part to contribute can be embodied in the form of software products, which is stored in a storage and is situated between
In matter (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a mobile terminal (can be mobile phone, calculate
Machine, server, air conditioner or network equipment etc.) execute method described in each embodiment of the present invention.
The embodiment of the present invention is described above in conjunction with figure, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, the ordinary skill people of this field
Member under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, can also make very
Multi-form, all of these belong to the protection of the present invention.
Claims (22)
1. a kind of choke detecting method, which is characterized in that the described method includes:
Obtain the evaporating temperature of evaporator；
Determine that the throttling set of unit is in unplugged state, whole blocked states or Partial Blocking according to the evaporating temperature
State；
In the case where the throttling set is in Partial Blocking state, temperature and throttling before the throttling of the throttling set are obtained
Temperature afterwards determines blocking position according to temperature after temperature before the throttling and the throttling.
2. the method according to claim 1, wherein being determined at the throttling set of unit according to the evaporating temperature
In unplugged state, whole blocked states or Partial Blocking state, comprising:
The evaporating temperature Tz is compared with the first default evaporating temperature Tz1, the second default evaporating temperature Tz2；
Determine that the throttling set of unit is in unplugged state, whole blocked states or Partial Blocking shape according to comparison result
State.
3. according to the method described in claim 2, it is characterized in that, determining that the throttling set of unit is in not according to comparison result
Blocked state, whole blocked states or Partial Blocking state, comprising:
If Tz > Tz1, it is determined that the throttling set is in unplugged state；
If Tz < Tz2, it is determined that the throttling set is in whole blocked states；
If Tz2 < Tz < Tz1, it is determined that the throttling set is in Partial Blocking state.
4. the method according to claim 1, wherein being determined at the throttling set of unit according to the evaporating temperature
After unplugged state, whole blocked states or Partial Blocking state, the method also includes:
In the case where the throttling set is in unplugged state, triggering unit enters ordinary control mode；Wherein, described normal
Rule control model includes: the evaporating temperature of evaporator to be obtained at interval of preset time, and determine unit according to the evaporating temperature
Throttling set be in unplugged state, whole blocked state or Partial Blocking state.
5. the method according to claim 1, wherein true according to temperature after temperature before the throttling and the throttling
Determine blocking position, comprising:
According to temperature Th after temperature Tq before the throttling and the throttling, throttling mean temperature T is calculated?；Wherein, T?=(Tq+
Th)/2；
By the throttling mean temperature T?It is compared with default throttle temperature T0, blocking position is determined according to comparison result.
6. according to the method described in claim 5, it is characterized in that, by the throttling mean temperature T?With default throttle temperature T0
It is compared, blocking position is determined according to comparison result, comprising:
If T?>=T0, it is determined that blocking position pipeline section after throttling；
If T?< T0, it is determined that blocking position pipeline section before throttling.
7. the method according to claim 1, wherein
After determining blocking position according to temperature after temperature before the throttling and the throttling, the method also includes: it generates stifled
Plug is reported and is sent to user；Wherein, record has blocking position in the blocking report；
Determine that the throttling set of unit is in unplugged state, whole blocked states or Partial Blocking according to the evaporating temperature
After state, the method also includes: in the case where the throttling set is in whole blocked states, generate blocking report simultaneously
It is sent to user；Wherein, record has blocking position to be located at throttling line segments in the blocking report.
8. the method according to the description of claim 7 is characterized in that the method also includes:
Monitoring generates the number of blocking report；
If the number for generating plain color report is more than preset times, unit closing is controlled, and user is prompted to need to the section
Stream device is safeguarded.
9. according to the method described in claim 2, it is characterized in that,
The first default evaporating temperature Tz1 is the evaporation temperature for the evaporator that the unit of normal type measures under standard condition
Degree；
The second default evaporating temperature Tz2 is surveyed after the unit of normal type blocks the throttling set under standard condition
The evaporating temperature of the evaporator obtained.
10. according to the method described in claim 5, it is characterized in that,
The default throttle temperature T0 be the throttling set that the unit of normal type measures under standard condition throttling before temperature
With the average value of temperature after throttling.
11. method according to any one of claim 1 to 10, which is characterized in that
The throttling set is throttle capillary tube.
12. a kind of unit for being able to detect blocking, which is characterized in that the unit includes: the evaporator being connected and throttling dress
It sets, and,
Blockage detector, for according to the evaporating temperature of the evaporator determine the throttling set be in unplugged state,
Whole blocked states or Partial Blocking state；In the case where determining that the throttling set is in Partial Blocking state, according to
Temperature and temperature after throttling determine blocking position before the throttling of the throttling set.
13. unit according to claim 12, which is characterized in that the unit further include:
First sensor is arranged on the pipeline of evaporator, for obtaining the evaporating temperature of the evaporator；
Pipeline section before the throttling of the throttling set is arranged in second sensor, for obtaining temperature before the throttling；
Pipeline section after the throttling of the throttling set is arranged in 3rd sensor, for obtaining temperature after the throttling.
14. unit according to claim 12, which is characterized in that the blockage detector, comprising:
Comparison module, for by the default evaporating temperature Tz1 of the evaporating temperature Tz and first, the second default evaporating temperature Tz2 into
Row compares；
State determining module, for determining that the throttling set of unit is in unplugged state, all blocking shape according to comparison result
State or Partial Blocking state.
15. unit according to claim 14, which is characterized in that
The state determining module is specifically used in the case where Tz > Tz1, determines that the throttling set is in unplugged shape
State；In the case where Tz < Tz2, determine that the throttling set is in whole blocked states；In the case where Tz2 < Tz < Tz1,
Determine that the throttling set is in Partial Blocking state.
16. unit according to claim 12, which is characterized in that the blockage detector, further includes:
Control module, in the case where determining that the throttling set is in unplugged state, triggering unit to enter conventional control
Molding formula；Wherein, the ordinary control mode includes: the evaporating temperature that evaporator is obtained at interval of preset time, and according to institute
It states evaporating temperature and determines that the throttling set of unit is in unplugged state, whole blocked states or Partial Blocking state.
17. unit according to claim 12, which is characterized in that the blockage detector, further includes:
Computing module, for calculating throttling mean temperature T according to temperature Th after temperature Tq before the throttling and the throttling?；Its
In, T?=(Tq+Th)/2；
Position determination module is used for the throttling mean temperature T?It is compared with default throttle temperature T0, is tied according to comparing
Fruit determines blocking position.
18. unit according to claim 17, which is characterized in that
The position determination module is specifically used in T?In the case where >=T0, blocking position pipeline section after throttling is determined；In T?<
In the case where T0, blocking position pipeline section before throttling is determined.
19. unit according to claim 12, which is characterized in that the blockage detector, further includes:
Reporting modules generate blocking after determining blocking position according to temperature after temperature before the throttling and the throttling
It reports and is sent to user；Wherein, record has blocking position in the blocking report；It is also used to determining at the throttling set
In the case where whole blocked states, generates blocking and report and be sent to user；Wherein, record has blocking in the blocking report
Position is located at throttling line segments.
20. unit according to claim 19, which is characterized in that the blockage detector, further includes:
Protective module, for monitoring the number for generating blocking report；If the number for generating plain color report is more than preset times,
It controls unit to close, and user is prompted to need to safeguard the throttling set.
21. unit described in any one of 2 to 20 according to claim 1, which is characterized in that
The throttling set is throttle capillary tube.
22. a kind of computer readable storage medium, which is characterized in that the computer-readable recording medium storage has signal mapping
Computer program, the computer program by least one processor execute when, it is any one in claim 1-11 to realize
Method described in.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944614A (en) * | 2021-03-01 | 2021-06-11 | 青岛海尔空调电子有限公司 | Control method of air conditioner and air conditioner |
Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364403Y (en) * | 1999-03-10 | 2000-02-16 | 浙江大学 | Cryogenic refrigerator |
| JP2000274896A (en) * | 1999-03-24 | 2000-10-06 | Tokyo Gas Co Ltd | Method for sensing abnormality of expansion valve and air conditioner |
| US20040211193A1 (en) * | 2003-04-23 | 2004-10-28 | Ams Research Corporation | Cryocooler with oil lubricated compressor |
| CN1737448A (en) * | 2005-06-20 | 2006-02-22 | 珠海格力电器股份有限公司 | Air conditioner capable of diagnosing failure of refrigerant shortage and system block and diagnosis method thereof |
| JP2008095969A (en) * | 2006-10-05 | 2008-04-24 | Sharp Corp | Air conditioner |
| US20090217685A1 (en) * | 2006-03-17 | 2009-09-03 | Stefano Mola | System and method for controlling the air-conditioning system of a vehicle with reduced energy consumption |
| CN102401447A (en) * | 2011-05-24 | 2012-04-04 | 宁波奥克斯电气有限公司 | Method for processing disorderly closedown caused by partial blockage of inside pipeline of varied refrigerant volume (VRV) air-conditioning chamber |
| CN102767926A (en) * | 2012-07-03 | 2012-11-07 | 海尔集团公司 | Capillary anti-blocking structural assembly of low-temperature refrigerator and controlling method for assembly |
| JP2014126306A (en) * | 2012-12-27 | 2014-07-07 | Hitachi Appliances Inc | Air conditioner |
| CN104061655A (en) * | 2014-06-16 | 2014-09-24 | 广东美的集团芜湖制冷设备有限公司 | Failure detection method and failure detection device for air conditioner refrigerating system and air conditioner |
| WO2014203356A1 (en) * | 2013-06-19 | 2014-12-24 | 三菱電機株式会社 | Refrigeration cycle device |
| CN104406805A (en) * | 2014-11-19 | 2015-03-11 | 珠海格力电器股份有限公司 | Method and system for detecting unobstructed condition of air conditioner system |
| KR101700538B1 (en) * | 2015-11-27 | 2017-01-26 | 주식회사 신성엔지니어링 | Method for sensing contamination of heat exchanger and system for the same |
| CN106482405A (en) * | 2016-09-21 | 2017-03-08 | 珠海格力电器股份有限公司 | Air-Cooled Heat Pump Unit and its control method, device and system |
| CN106813917A (en) * | 2017-03-14 | 2017-06-09 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning, the apparatus and method of detection refrigerant throttling extremely |
| CN107042747A (en) * | 2016-01-13 | 2017-08-15 | 博格思众公司 | Refrigeration system with overheat, supercooling and refrigerant charge control |
| CN107461883A (en) * | 2017-07-27 | 2017-12-12 | 广东美的制冷设备有限公司 | Detection method, the system that air conditioner and its throttling arrangement block |
| CN207247632U (en) * | 2017-06-29 | 2018-04-17 | 青岛海尔特种电冰箱有限公司 | Evaporator assemblies and the refrigerator with the evaporator assemblies |
| CN108870644A (en) * | 2018-05-21 | 2018-11-23 | 广东美的暖通设备有限公司 | A kind of air-conditioning system plugged filter detection method and detection device |
| CN209726590U (en) * | 2018-12-11 | 2019-12-03 | 珠海格力电器股份有限公司 | A kind of unit being able to detect blocking |
-
2018
- 2018-12-11 CN CN201811510670.2A patent/CN109737654B/en active Active
Patent Citations (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2364403Y (en) * | 1999-03-10 | 2000-02-16 | 浙江大学 | Cryogenic refrigerator |
| JP2000274896A (en) * | 1999-03-24 | 2000-10-06 | Tokyo Gas Co Ltd | Method for sensing abnormality of expansion valve and air conditioner |
| US20040211193A1 (en) * | 2003-04-23 | 2004-10-28 | Ams Research Corporation | Cryocooler with oil lubricated compressor |
| CN1737448A (en) * | 2005-06-20 | 2006-02-22 | 珠海格力电器股份有限公司 | Air conditioner capable of diagnosing failure of refrigerant shortage and system block and diagnosis method thereof |
| US20090217685A1 (en) * | 2006-03-17 | 2009-09-03 | Stefano Mola | System and method for controlling the air-conditioning system of a vehicle with reduced energy consumption |
| JP2008095969A (en) * | 2006-10-05 | 2008-04-24 | Sharp Corp | Air conditioner |
| CN102401447A (en) * | 2011-05-24 | 2012-04-04 | 宁波奥克斯电气有限公司 | Method for processing disorderly closedown caused by partial blockage of inside pipeline of varied refrigerant volume (VRV) air-conditioning chamber |
| CN102767926A (en) * | 2012-07-03 | 2012-11-07 | 海尔集团公司 | Capillary anti-blocking structural assembly of low-temperature refrigerator and controlling method for assembly |
| JP2014126306A (en) * | 2012-12-27 | 2014-07-07 | Hitachi Appliances Inc | Air conditioner |
| WO2014203356A1 (en) * | 2013-06-19 | 2014-12-24 | 三菱電機株式会社 | Refrigeration cycle device |
| CN104061655A (en) * | 2014-06-16 | 2014-09-24 | 广东美的集团芜湖制冷设备有限公司 | Failure detection method and failure detection device for air conditioner refrigerating system and air conditioner |
| CN104406805A (en) * | 2014-11-19 | 2015-03-11 | 珠海格力电器股份有限公司 | Method and system for detecting unobstructed condition of air conditioner system |
| KR101700538B1 (en) * | 2015-11-27 | 2017-01-26 | 주식회사 신성엔지니어링 | Method for sensing contamination of heat exchanger and system for the same |
| CN107042747A (en) * | 2016-01-13 | 2017-08-15 | 博格思众公司 | Refrigeration system with overheat, supercooling and refrigerant charge control |
| CN106482405A (en) * | 2016-09-21 | 2017-03-08 | 珠海格力电器股份有限公司 | Air-Cooled Heat Pump Unit and its control method, device and system |
| CN106813917A (en) * | 2017-03-14 | 2017-06-09 | 广东志高暖通设备股份有限公司 | A kind of air-conditioning, the apparatus and method of detection refrigerant throttling extremely |
| CN207247632U (en) * | 2017-06-29 | 2018-04-17 | 青岛海尔特种电冰箱有限公司 | Evaporator assemblies and the refrigerator with the evaporator assemblies |
| CN107461883A (en) * | 2017-07-27 | 2017-12-12 | 广东美的制冷设备有限公司 | Detection method, the system that air conditioner and its throttling arrangement block |
| CN108870644A (en) * | 2018-05-21 | 2018-11-23 | 广东美的暖通设备有限公司 | A kind of air-conditioning system plugged filter detection method and detection device |
| CN209726590U (en) * | 2018-12-11 | 2019-12-03 | 珠海格力电器股份有限公司 | A kind of unit being able to detect blocking |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112944614A (en) * | 2021-03-01 | 2021-06-11 | 青岛海尔空调电子有限公司 | Control method of air conditioner and air conditioner |
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|---|---|
| CN109737654B (en) | 2024-01-23 |
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