CN106016867A - Coolant charging method and system and air conditioner - Google Patents
Coolant charging method and system and air conditioner Download PDFInfo
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- CN106016867A CN106016867A CN201610279643.3A CN201610279643A CN106016867A CN 106016867 A CN106016867 A CN 106016867A CN 201610279643 A CN201610279643 A CN 201610279643A CN 106016867 A CN106016867 A CN 106016867A
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- Prior art keywords
- pressure
- current
- temperature
- coolant injection
- coolant
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Classifications
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- 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
- F25B45/00—Arrangements for charging or discharging refrigerant
Abstract
The invention relates to the field of electric appliances and discloses a coolant charging method and system. The coolant charging method comprises the steps that indoor environment temperature and outdoor environment temperature are detected; current system pressure is detected; and coolant charging is conducted according to the current system pressure until the current system pressure is higher than or equal to target system pressure, and the target system pressure is determined according to the indoor environment temperature and the outdoor environment temperature. Accordingly, coolant charging can be accurately achieved without emptying coolants in the system, cost is saved, and the environment is protected.
Description
Technical field
The present invention relates to appliance field, in particular it relates to a kind of coolant injection method, coolant injection system
And air-conditioner.
Background technology
Coolant (also known as cold-producing medium) is constantly to circulate in refrigeration systems and changed by the state of itself
To realize the operation material of refrigeration.In the case of cold medium shortage, air conditioning function will be affected.Such as,
Air-conditioning effect will be affected after air-conditioner outdoor unit secondary refrigerant leakage, now need to fill coolant to recover air-conditioning merit
Energy.
But, for off-premises station secondary refrigerant leakage, for prior art, maintenance master worker be generally difficult to determine
The coolant quantity revealed, thus cannot be carried out corresponding filling.Under normal circumstances, it is typically necessary and thoroughly bleeds off
Evacuation again after coolant, fills then according to benchmark coolant quantity and caliber and pipe range carry out corresponding coolant
Note.It is to say, prior art cannot also need to the coolant quantity added well in estimating system, and not
The most directly coolant in system is bled off and again evacuate filled, the most i.e. cause waste, the most dirty
Contaminate environment.
Summary of the invention
It is an object of the invention to provide a kind of coolant injection method, coolant injection system and air-conditioner, this is cold
Matchmaker fills method, coolant injection system and air-conditioner can accurately realize coolant injection and without putting
Coolant in do-nothing system, has i.e. saved cost and has protected again environment.
To achieve these goals, the present invention provides a kind of coolant injection method, described coolant injection method
Including: detection indoor environment temperature and outdoor environment temperature；Detection current system pressure；And according to institute
State current system pressure and carry out coolant injection, until described current system pressure is more than or equal to goal systems
Pressure, wherein said goal systems pressure is determined by indoor environment temperature and outdoor environment temperature.
Preferably, this coolant injection method also includes: when carrying out coolant injection, during coolant injection the first
Between stopped for the second time period after section, detection indoor environment temperature, outdoor environment temperature and current system
Pressure.
Preferably, described current system pressure be current dynamic pressure, described goal systems pressure be mesh
In the case of mark dynamic pressure, described coolant injection method also includes: detect following at least one: current
Outdoor condensator outlet temperature, current system delivery temperature, current indoor machine evaporator temperature and current
System current；And in the case of described current dynamic pressure is less than described target dynamic pressure, full
Be enough to during lower at least one carry out coolant injection: described current outdoor condensator outlet temperature is more than described mesh
The outdoor condensator outlet temperature of mark, described current system delivery temperature are more than described goal systems aerofluxus temperature
Degree, described current indoor machine evaporator temperature are more than described target indoor set evaporator temperature and described
Current system current value is less than goal systems current value.
Present invention also offers a kind of coolant injection method, described coolant injection method includes: in sensing chamber
Ambient temperature and outdoor environment temperature；The current static pressure of detecting system；And according to described the most quiet
State pressure carries out coolant first and fills, until described current static pressure is more than or equal to target quiescent pressure
Power, wherein said goal systems pressure is determined by indoor environment temperature and outdoor environment temperature.
Preferably, in the case of described current static pressure is more than or equal to described target quiescent pressure,
Described coolant injection method also includes: start compressor；Detect the current system after described compressor start
Multidate information；Carry out coolant second according to described current system multidate information to fill, until described current system
System multidate information meets preset relation, wherein said goal systems multidate information with goal systems multidate information
Determined by described indoor environment temperature and described outdoor environment temperature.
Preferably, described system dynamics information is following at least one: current dynamic pressure, current outdoor
Condensator outlet temperature, current system delivery temperature, current indoor machine evaporator temperature and current system
Current value；Described goal systems multidate information is following at least one: outside target dynamic pressure, target chamber
Condensator outlet temperature, goal systems delivery temperature, target indoor set evaporator temperature and goal systems
Current value；Described preset relation is following at least one: described current dynamic pressure is more than or equal to described
Target dynamic pressure, described current outdoor condensator outlet temperature are less than or equal to described target chamber condensed exterior
Device outlet temperature, described current system delivery temperature are less than or equal to described goal systems delivery temperature, institute
State current indoor machine evaporator temperature less than or equal to described target indoor set evaporator temperature and described work as
Front System current is more than or equal to goal systems current value.
Preferably, this coolant injection method also includes following at least one: fill carrying out described coolant first
During note, stop the first dwell time section after coolant injection the first infilling time section, detect described indoor environment
Temperature, described outdoor environment temperature and described current static pressure；Fill carrying out described coolant second
During note, stop the second dwell time section after coolant injection the second infilling time section, detect described current system
Multidate information；And described compressor runs with target frequency after presetting the operation time, detect described currently
System dynamics information.
Preferably, described current static pressure be described compressor not actuated in the case of current system high pressure
Lateral pressure or current system low-pressure lateral pressure, described current dynamic pressure is the situation of described compressor start
Lower current system high side pressure or current system low-pressure lateral pressure.
Correspondingly, the present invention also provides for a kind of coolant injection system, and described coolant injection system includes: room
Interior temperature-detecting device, is used for detecting indoor environment temperature；Outdoor temperature detection device, for sensing chamber
External environment temperature；Pressure-detecting device, is used for detecting current system pressure；And processing means, it is used for
Receive described indoor environment temperature, described outdoor environment temperature and described current system pressure, and according to
The current system pressure received carries out coolant injection, until described current system pressure is more than or equal to mesh
Mark system pressure, wherein said goal systems pressure is by the indoor environment temperature received and outdoor environment temperature
Degree determines.
Preferably, described processing means is additionally operable to: when carrying out described coolant first and filling, cold in control
After matchmaker stops the first dwell time section after filling the first infilling time section, receive described indoor environment temperature,
Described outdoor environment temperature and current system pressure.
Preferably, described current system pressure be current dynamic pressure, described goal systems pressure be mesh
In the case of mark dynamic pressure, described coolant injection system also includes: outlet temperature detection device, is used for
Detection current outdoor condensator outlet temperature；Exhaust temperature detection means, is used for detecting current system aerofluxus
Temperature；Evaporator temperature detection device, is used for detecting current indoor machine evaporator temperature and current detecting
Device, is used for detecting described System current, wherein, at described current dynamic pressure less than described
In the case of target dynamic pressure, when meeting following at least one, carry out coolant injection: described current outdoor
Condensator outlet temperature is more than described target chamber external condenser outlet temperature, described current system delivery temperature
More than described goal systems delivery temperature, described current indoor machine evaporator temperature more than in described target chamber
Machine evaporator temperature and described current system current value are less than goal systems current value.
Correspondingly, the present invention also provides for a kind of coolant injection system, and described coolant injection system includes: room
Interior temperature-detecting device, is used for detecting indoor environment temperature；Outdoor temperature detection device, for sensing chamber
External environment temperature；Pressure-detecting device, for the current static pressure of detecting system；And processing means,
For receiving described indoor environment temperature, described outdoor environment temperature and described current static pressure, and
Carry out coolant first according to the current static pressure received to fill, until described current static pressure is more than
Or equal to target quiescent pressure, wherein said goal systems pressure is by the indoor environment temperature received and room
External environment temperature determines.
Preferably, described processing means is additionally operable to: at described current static pressure more than or equal to described mesh
In the case of mark static pressure, start compressor；Described coolant injection system also includes that multidate information detects
Device, the current system multidate information after detecting described compressor start；Described processing means is also used
Fill, until described current system is dynamically believed in carrying out coolant second according to described current system multidate information
Breath and goal systems multidate information meet preset relation, and wherein said goal systems multidate information is by described room
Interior ambient temperature and described outdoor environment temperature determine.
Preferably, described system dynamics information is following at least one: current dynamic pressure, current outdoor
Condensator outlet temperature, current system delivery temperature, current indoor machine evaporator temperature and current system
Current value；Described goal systems multidate information is following at least one: outside target dynamic pressure, target chamber
Condensator outlet temperature, goal systems delivery temperature, target indoor set evaporator temperature and goal systems electricity
Flow valuve；Described preset relation is following at least one: described current dynamic pressure is more than or equal to described mesh
Mark dynamic pressure, described current outdoor condensator outlet temperature are less than or equal to described target chamber external condenser
Outlet temperature, described current system delivery temperature are less than or equal to described goal systems delivery temperature, described
Current indoor machine evaporator temperature less than or equal to described target indoor set evaporator temperature and described currently
System current is more than or equal to goal systems current value；Described coolant injection system also include following at least
One: outlet temperature detection device, is used for detecting described current outdoor condensator outlet temperature；Aerofluxus temperature
Degree detection device, for described current system delivery temperature；Evaporator temperature detection device, is used for detecting
Presently described indoor machine evaporation temperature and current sensing means, be used for detecting presently described system power
Value；Wherein said pressure-detecting device is additionally operable to detect described dynamic pressure.
Preferably, described processing means is additionally operable to perform following at least one: carrying out described coolant first
When filling, after coolant injection the first infilling time section, stop the first dwell time section, receive described indoor ring
Border temperature, described outdoor environment temperature and described current static pressure；Carrying out described coolant second
When filling, stop the second dwell time section after coolant injection the second infilling time section, receive described current system
System multidate information；And described compressor runs with target frequency after presetting the operation time, receive described working as
Front system dynamics information.
Preferably, described current static pressure be described compressor not actuated in the case of current system high pressure
Lateral pressure or current system low-pressure lateral pressure, described current dynamic pressure is the situation of described compressor start
Lower current system high side pressure or current system low-pressure lateral pressure.
Correspondingly, the present invention also provides for a kind of air-conditioner, described air-conditioner coolant injection described above system.
By technique scheme, carry out coolant injection according to the current system pressure detected, until institute
Stating current system pressure and be more than or equal to goal systems pressure, wherein goal systems pressure is by the room detected
Interior ambient temperature and outdoor environment temperature determine.So can accurately realize coolant injection and without
Coolant in blowdown system, has i.e. saved cost and has protected again environment.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, with
Detailed description below is used for explaining the present invention together, but is not intended that limitation of the present invention.?
In accompanying drawing:
Fig. 1 is the flow chart of the coolant injection method provided according to an aspect of the present invention；
Fig. 2 is the flow chart of the coolant injection method provided according to one embodiment of the present invention；
Fig. 3 is the flow chart of coolant injection method according to a further aspect of the invention；
Fig. 4 is the flow chart of the coolant injection method provided according to one embodiment of the present invention；And
Fig. 5 is the structured flowchart of the coolant injection system provided according to the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is described in detail.It should be appreciated that
Detailed description of the invention described herein is merely to illustrate and explains the present invention, is not limited to this
Bright.
Fig. 1 is the flow chart of the coolant injection method provided according to an aspect of the present invention.
As it is shown in figure 1, the coolant injection method that an aspect of of the present present invention provides may include that in step 11
Place's detection indoor environment temperature and outdoor environment temperature, such as, can pass through temperature sensor or critesistor
Equitemperature detection device detects indoor environment temperature and outdoor environment temperature.
In step 12 place, detect current system pressure, such as, can be come currently by pressure transducer
System pressure detects.
In step 13 place, carry out coolant injection according to described current system pressure, until described current system
System pressure more than or equal to goal systems pressure, wherein said goal systems pressure by indoor environment temperature and
Outdoor environment temperature determines.
Wherein goal systems pressure can be drawn by experiment, and inventor finds in research process, indoor
There is impact to system pressure in ambient temperature and outdoor environment temperature, i.e. at different indoor environment temperatures and
Under outdoor environment temperature, the pressure of system is different.It is to say, at specific indoor environment temperature and
Under outdoor environment temperature, during coolant abundance, system pressure is certain.Therefore current system pressure reaches room
During goal systems pressure under interior ambient temperature and outdoor environment temperature, represent that coolant is sufficient.
Coolant injection can be accurately realized and without the coolant in blowdown system by said method,
I.e. save cost and protect again environment.
In order to be the indoor environment temperature, outdoor environment temperature and the current system pressure that detect
Power is the most accurate, and then realizes coolant injection accurately, can detect after system pressure is stable.
Therefore, described coolant injection method can also include: when carrying out coolant injection, the coolant injection t1 time
After stopping the t2 time period after Duan, it is ensured that after system pressure is stable, then detect indoor environment temperature, outdoor ring
Border temperature and current system pressure.
System pressure can be static pressure or dynamic pressure.Wherein current static pressure is described compressor
Current system high side pressure or current system low-pressure lateral pressure in the case of not actuated, described current dynamic
Pressure is current system high side pressure or current system low pressure side pressure in the case of described compressor start
Power.And high side pressure can be represented by such as system discharge pressure or condensing pressure, and low-pressure side
Pressure can be represented by the pressure at such as system return air pressure, off-premises station trachea stop valve.Such as
In air-conditioner, itself has pressure transducer, it is common that can detecting system pressure at expulsion or condensing pressure,
If itself does not have pressure transducer in tune device, off-premises station can be detected by additional pressure sensor
Pressure at trachea stop valve.
Described current system pressure be current dynamic pressure, described goal systems pressure be target dynamic pressure
In the case of power, described coolant injection method also includes: detect following at least one: current outdoor condenses
Device outlet temperature, current system delivery temperature, current indoor machine evaporator temperature and current system electric current
Value；And at described current dynamic pressure less than in the case of described target dynamic pressure, meet with down to
Coolant injection is carried out: described current outdoor condensator outlet temperature is outer more than described target chamber cold during few one
Condenser outlet temperature, described current system delivery temperature more than described goal systems delivery temperature, described work as
Front indoor set evaporator temperature is more than described target indoor set evaporator temperature and described current system electricity
Flow valuve is less than goal systems current value.Wherein current indoor machine evaporator temperature can be with indoor machine evaporation
Middle portion temperature or indoor machine evaporation outlet temperature are as the criterion.
Current outdoor condensator outlet temperature, current system delivery temperature, current indoor machine evaporator temperature,
And current system current value can be affected by coolant quantity in system, in order to avoid system pressure detection has
By mistake, at least one in above-mentioned parameter can be combined with dynamic pressure and judge whether to need to carry out coolant
Fill.
The above-mentioned coolant describing present invention offer in detail by detailed description of the invention below with reference to Fig. 2 fills
Injecting method, it is to be noted however that the present invention is not restricted to this.
Fig. 2 is the flow chart of the coolant injection method provided according to one embodiment of the present invention.
Such as can start coolant injection by the start button arranged on off-premises station, as in figure 2 it is shown,
In step 21 place, detection indoor environment temperature T1, outdoor environment temperature T2 and current system pressure
Pc, Pc can be current system static pressures, it is also possible to be current system dynamic pressure.
In step 22 place, obtain for indoor environment temperature T1, the target system of outdoor environment temperature T2
System pressure Pc0, goal systems pressure Pc0 can be target quiescent pressure, it is also possible to be target dynamic pressure
Power, in its tables of data that can prestore.Can press in the case of obtaining coolant abundance by test of many times
System pressure when contracting machine stops or running is as goal systems pressure.
In step 23 place, it is judged that whether current system pressure Pc is less than goal systems pressure Pc0.
If current system pressure Pc is less than goal systems pressure Pc0, then in step 25 place, carry out cold
Matchmaker fills, stop after the filled scheduled time t1 coolant injection (such as open coolant injection valve, and
After the t1 time period, coolant injection valve cuts out), and wait the t2 time period, then go to step 21 place,
So that detecting system pressure again after system pressure is stable, to ensure the accuracy of detected value.
If current system pressure Pc is not less than goal systems pressure Pc0, then in step 24 place, stop
Coolant injection.
Another aspect provides a kind of coolant injection method, Fig. 3 is according to the opposing party of the present invention
The flow chart of the coolant injection method in face.
As it is shown on figure 3, the coolant injection method that another aspect of the present invention provides may include that in step 31
Place, detection indoor environment temperature and outdoor environment temperature；In step 32 place, detecting system the most quiet
State pressure；And in step 33 place, carry out coolant first according to described current static pressure and fill, directly
To described current static pressure more than or equal to target quiescent pressure, wherein said goal systems pressure is by room
Interior ambient temperature and outdoor environment temperature determine.So can accurately realize coolant injection and without
Coolant in blowdown system, has i.e. saved cost and has protected again environment.
Wherein target quiescent pressure can be drawn by experiment, and inventor finds in research process, indoor
There is impact to static pressure in ambient temperature and outdoor environment temperature, i.e. at different indoor environment temperatures and
Under outdoor environment temperature, the pressure of system is different.It is to say, at specific indoor environment temperature and
Under outdoor environment temperature, during coolant abundance, system pressure is certain.Therefore current system pressure reaches room
During goal systems pressure under interior ambient temperature and outdoor environment temperature, represent that coolant is sufficient.Should in reality
In with, target quiescent pressure can be arranged to the low 0.2-0.8MPa of force value such as drawn than test
Force value, if current static pressure is less than target quiescent pressure, then it represents that coolant quantity is little, need
Add in a large number.
In order to make indoor environment temperature, outdoor environment temperature and the current system pressure detected
Power is the most accurate, and then realizes coolant injection accurately, can detect after system pressure is stable.
Therefore, described coolant injection method can also include: when carrying out described coolant first and filling, coolant fills
Stop the first dwell time section after note the first infilling time section, detect described indoor environment temperature, described room
External environment temperature and described current static pressure.
Complete coolant a large amount of add after, micro-to coolant that the coolant injection method of the present invention also provides for
Fill, so that coolant injection amount is more accurate.
In the case of described current static pressure is more than or equal to described target quiescent pressure, described coolant
Filled method can also include: starts compressor；Detect the current system after described compressor start dynamic
Information；Carry out coolant second according to described current system multidate information to fill, until described current system moves
State information and goal systems multidate information meet preset relation, and wherein said goal systems multidate information is by institute
State indoor environment temperature and described outdoor environment temperature determines.
In order to be the indoor environment temperature, outdoor environment temperature and the current system pressure that detect
Power is the most accurate, and then realizes coolant injection accurately, can detect after system pressure is stable.
Therefore, described coolant injection method can also include: when carrying out described coolant second and filling, coolant fills
Stop the second dwell time section after note the second infilling time section, detect described current system multidate information.
Described system dynamics information is following at least one: current dynamic pressure, current outdoor condenser go out
Mouth temperature, current system delivery temperature, current indoor machine evaporator temperature and current system current value；
Described goal systems multidate information is following at least one: target dynamic pressure, target chamber external condenser go out
Mouth temperature, goal systems delivery temperature, target indoor set evaporator temperature and goal systems current value.
Correspondingly, described preset relation is following at least one: described current dynamic pressure is more than or equal to
Described target dynamic pressure, described current outdoor condensator outlet temperature are less than or equal to outside described target chamber
Condensator outlet temperature, described current system delivery temperature are less than or equal to described goal systems aerofluxus temperature
Degree, described current indoor machine evaporator temperature less than or equal to described target indoor set evaporator temperature and
Described current system current value is more than or equal to goal systems current value.
In order to improve accuracy, can using in above parameter at least both believe as described system dynamics
Breath.
In order to current system multidate information more accurately detected, can be at described compressor with mesh
Mark frequency is run after presetting the operation time, then detects described current system multidate information.
Wherein, described current static pressure be described compressor not actuated in the case of current system high-pressure side
Pressure or current system low-pressure lateral pressure, in the case of described current dynamic pressure is described compressor start
Current system high side pressure or current system low-pressure lateral pressure.And high side pressure can be by being such as
System pressure at expulsion or condensing pressure represent, and low-pressure lateral pressure can be ended by such as off-premises station trachea
Pressure at valve represents.Air-conditioner such as itself has pressure transducer, it is common that system can be detected
System pressure at expulsion or condensing pressure, if itself does not have pressure transducer in air-conditioner, can be by attached
Plus-pressure sensor detects the pressure at off-premises station trachea stop valve.
The above-mentioned coolant describing present invention offer in detail by detailed description of the invention below with reference to Fig. 4 fills
Injecting method, it is to be noted however that the present invention is not restricted to this.
Fig. 4 is the flow chart of the coolant injection method provided according to one embodiment of the present invention.
Such as can start coolant injection by the start button arranged on off-premises station, indoor set can be strong
Being made as high wind shelves, interior organic electronic throttle part could be arranged to standby aperture (such as 300P (step number)),
Certainly those skilled in the art can carry out other setting, under preferable case, with the examination obtaining target component
During testing, holding one is set.As shown in Figure 4, in step 40 place, detect indoor environment temperature
T1, outdoor environment temperature T2 and current static pressure Pj.
In step 41 place, obtain quiet for the target of indoor environment temperature T1, outdoor environment temperature T2
State pressure Pj0, wherein it is possible to when in the case of passing through test of many times acquisition coolant abundance, compressor stops
System pressure is as target quiescent pressure.
In step 42 place, it is judged that whether current static pressure Pj is less than target quiescent pressure Pj0.
If current static pressure Pj is less than target quiescent pressure Pj0, then in step 43 place, carry out the
One coolant injection, after filled scheduled time t1 stop coolant injection (such as open coolant injection valve, and
After the t1 time period, coolant injection valve cuts out), and wait the t2 time period, then go to step 41 place,
So that detecting system pressure again after system pressure is stable, to ensure the accuracy of detected value.
If current static pressure Pj is not less than target quiescent pressure Pj0, then in step 44 place, start
Compressor.Wherein, compressor the most first can run 60s according to frequency F1, afterwards according to frequency F2
Run 60s, then according to target frequency F3 runs.Certainly, said frequencies change and the time of operation are only
Exemplary, those skilled in the art can according to practical situation arrange varying number frequency change and
The operation time.
In step 45 place, detection current outdoor condensator outlet temperature T3 and current exhaust gas temperature T4.
Preferably, after compressor runs preset time period t5 according to target frequency F3, cup can be worked as in detection
External condenser outlet temperature T3 and current exhaust gas temperature T4, it is ensured that compressor operating is stable, to ensure inspection
Survey the accuracy of result.
In step 46 place, obtain the target chamber external condenser for indoor temperature T1 and outdoor temperature T2
Outlet temperature T30 and target exhaust temperature T40.Target chamber external condenser outlet temperature T30 and target row
In the tables of data that temperature T40 can prestore, it is possible to compressor operating in the case of coolant abundance
Time obtained by test of many times.
In step 47 place, it may be judged whether meet current outdoor condensator outlet temperature T3 more than standard outdoor
Condensator outlet temperature T30 and current exhaust gas temperature T4 are more than standard deliveries temperature T40.
Although, with current outdoor condensator outlet temperature T3 and current exhaust gas temperature T4 in the present embodiment
For judging object, it is noted that the present invention can also use in said system multidate information
The most at least both are as judging object.
If meeting current outdoor condensator outlet temperature T3 more than standard outdoor condensator outlet temperature
T30 and current exhaust gas temperature T4 more than standard deliveries temperature T40, then in step 48 place, carry out coolant
Second fills, stop after the filled scheduled time t3 coolant injection (such as open coolant injection valve, and
After the t1 time period, coolant injection valve cuts out), and wait the t4 time period, then go to step 45 place,
To detect current outdoor condensator outlet temperature T3 and current exhaust gas temperature again after system pressure is stable
T4, to ensure the accuracy of detected value.During coolant second fills, the wind shelves of off-premises station can be by
According to the facts test the wind shelves of gained to be configured and electronic throttle parts can be configured according to predetermined aperture, interior
Organic electronic throttle part can remain initial opening, and certain those skilled in the art can carry out other and set
Put, under preferable case, with obtain target component process of the test in holding one is set.
If being unsatisfactory for current outdoor condensator outlet temperature T3 more than standard outdoor condensator outlet temperature
T30 and current exhaust gas temperature T4 are more than standard deliveries temperature T40, then in step 49 place, terminate coolant
Fill.
For above-mentioned various target components and compressor operation parameters, all it is based on refrigeration plant the coldest
Obtain under the state of matchmaker's charging amount, can be by representing with the form in following table.
The time t5 that compressor runs according to target comment F3 is as shown in table 1.
Table 1
Such as, for a certain specific air-conditioning, compressor can according to the time t5 that target comment F3 runs
With as shown in table 1-1, it is merely exemplary, is not limited to the present invention.
Table 1-1
Although the t5 shown in upper table is identical, but permissible according to the t5 under practical situation, different condition
Identical, it is also possible to different.
Compressor frequency F1, F2 and F3 are as shown in table 2.Owing to indoor environment temperature T1 is to compressor
Frequency F1, F2 and F3 the impact of value less, therefore can be not considered.
Table 2
Off-premises station wind shelves value determines as shown in table 3.Owing to indoor environment temperature T1 is to off-premises station wind shelves value
Impact less, therefore can be not considered.
Table 3
| T2 | Off-premises station wind shelves fixed value |
| -15≤T2 ＜-5 | W1 |
| -5≤T2 ＜ 5 | W2 |
| 5≤T2 ＜ 15 | W3 |
| 15≤T2 ＜ 25 | W4 |
| 25≤T2 ＜ 35 | W5 |
| 35≤T2 ＜ 45 | W6 |
Off-premises station electronic throttle parts opening value is as shown in table 4.Due to off-premises station electronic throttle parts aperture
The impact of value is less, therefore can be not considered.
Table 4
| T2 | Off-premises station electronic throttle parts fix opening value |
| -15≤T2 ＜-5 | PMV1 |
| -5≤T2 ＜ 5 | PMV2 |
| 5≤T2 ＜ 15 | PMV3 |
| 15≤T2 ＜ 25 | PMV4 |
| 25≤T2 ＜ 35 | PMV5 |
| 35≤T2 ＜ 45 | PMV6 |
Target quiescent pressure Pj0 is as shown in table 5, static pressure i.e. system-down stably rear internal system
Pressure.
Table 5
Such as, for a certain specific air-conditioning, target quiescent pressure Pj0 can be single as shown in Table 5-1
Position is Mpa, and it is merely exemplary, is not limited to the present invention.
Table 5-1
Target dynamic pressure Pj1 is as shown in table 6, and in this, target dynamic pressure Pj0 is with a scope
Represent, i.e. the form of X1≤Pj1≤X2, when comparing with current goal dynamic pressure as standard,
The minima in obtained scope can be taken.
Table 6
Such as, for a certain specific air-conditioning, target dynamic pressure Pj1 can be single as shown in Table 6-1
Position is Mpa, and this target dynamic pressure represents with high side pressure, and it is merely exemplary,
It is not limited to the present invention.
Table 6-1
Such as, for a certain specific air-conditioning, target dynamic pressure Pj1 can be single as shown in table 6-2
Position is Mpa, and this target dynamic pressure represents with low-pressure lateral pressure, and it is merely exemplary,
It is not limited to the present invention.
Table 6-2
Target chamber external condenser outlet temperature T30 is as shown in table 7, and in this, target chamber external condenser exports
Temperature T30 represents with a scope, i.e. the form of X1≤T30≤X2, as standard with
When current outdoor condensator outlet temperature compares, the minima in obtained scope can be taken.
Table 7
Such as, for a certain specific air-conditioning, target chamber external condenser outlet temperature T30 can be such as table
Shown in 7-1, unit is DEG C, and it is merely exemplary, is not limited to the present invention.
Table 7-1
Target exhaust temperature T40 is as shown in table 8, and in this, target exhaust temperature T40 is with a scope
Represent, i.e. the form of X1≤T40≤X2, when comparing with current exhaust gas temperature as standard,
The minima in obtained scope can be taken.
Table 8
Such as, for a certain specific air-conditioning, target exhaust temperature T40 can be single as shown in table 8-1
Position is DEG C that it is merely exemplary, is not limited to the present invention.
Table 8-1
Target indoor set evaporator temperature T50 is as shown in table 9, in this, target indoor set evaporator temperature
T50 represents with a scope, i.e. the form of X1≤T50≤X2, as standard with current
When indoor machine evaporation temperature compares, the minima in obtained scope can be taken.
Table 9
Such as, for a certain specific air-conditioning, target indoor set evaporator temperature T50 can be such as table 9-1
Shown in, unit is DEG C, and it is merely exemplary, is not limited to the present invention.
Table 9-1
Current value I0 is as shown in table 10 for goal systems.
Table 10
Such as, for a certain specific air-conditioning, goal systems current value I0 can as shown in table 10-1,
Unit is A, and it is merely exemplary, is not limited to the present invention.
Table 10-1
Above-mentioned parameter is typically different for different types, therefore simply show schematic table
Show form, be obtained in that by experiment according to practical situation.
Correspondingly, the present invention also provides for a kind of coolant injection system, Fig. 5 be according to the present invention provide cold
The structured flowchart of matchmaker's filling system.
As it is shown in figure 5, the coolant injection system that the present invention provides can include indoor temperature detection device
51, it is used for detecting indoor environment temperature；Outdoor temperature detection device 52, is used for detecting outdoor environment temperature；
Pressure-detecting device 53, is used for detecting current system pressure；And processing means 54, it is used for receiving institute
State indoor environment temperature, described outdoor environment temperature and described current system pressure, and according to being received
Current system pressure carry out coolant injection, until described current system pressure is more than or equal to goal systems
Pressure, wherein said goal systems pressure is true by the indoor environment temperature received and outdoor environment temperature
Fixed.So can accurately realize coolant injection and without the coolant in blowdown system, i.e. save
Cost protects again environment.
Wherein, described processing means 54 is additionally operable to: when carrying out described coolant first and filling, and is controlling
After stopping the first dwell time section after coolant injection the first infilling time section, receive described indoor environment temperature
Degree, described outdoor environment temperature and current system pressure.
Described current system pressure be current dynamic pressure, described goal systems pressure be target dynamic pressure
In the case of power, described coolant injection system also includes: outlet temperature detection device, is used for detecting currently
Outdoor condensator outlet temperature；Exhaust temperature detection means, is used for detecting current system delivery temperature；Steam
Send out device temperature-detecting device, be used for detecting current indoor machine evaporator temperature and current sensing means, use
Described System current is detected, wherein, at described current dynamic pressure less than described target dynamic in detection
In the case of pressure, carry out coolant injection when meeting following at least one: described current outdoor condenser goes out
Mouth temperature is more than described more than described target chamber external condenser outlet temperature, described current system delivery temperature
Goal systems delivery temperature, described current indoor machine evaporator temperature are more than described target indoor machine evaporation
Temperature and described current system current value are less than goal systems current value.
Correspondingly, a kind of coolant injection system, its structural representation are also provided for according to a further aspect in the invention
Figure can also be with reference to 5, and this coolant injection system may include that indoor temperature detection device, is used for detecting
Indoor environment temperature；Outdoor temperature detection device, is used for detecting outdoor environment temperature；Pressure-detecting device,
Current static pressure for detecting system；And processing means, be used for receiving described indoor environment temperature,
Described outdoor environment temperature and described current static pressure, and enter according to the current static pressure received
Row coolant first fills, until described current static pressure is more than or equal to target quiescent pressure, Qi Zhongsuo
State goal systems pressure to be determined by the indoor environment temperature received and outdoor environment temperature.So can be relatively
For realizing coolant injection accurately and without the coolant in blowdown system, i.e. save cost and protected again ring
Border.
Wherein, described processing means is additionally operable to: at described current static pressure more than or equal to described target
In the case of static pressure, start compressor；Described coolant injection system also includes multidate information detection dress
Put, the current system multidate information after detecting described compressor start；Described processing means is additionally operable to
Carry out coolant second according to described current system multidate information to fill, until described current system multidate information
Meeting preset relation with goal systems multidate information, wherein said goal systems multidate information is by described indoor
Ambient temperature and described outdoor environment temperature determine.
Described system dynamics information is following at least one: current dynamic pressure, current outdoor condenser go out
Mouth temperature, current system delivery temperature, current indoor machine evaporator temperature and current system current value；
Described goal systems multidate information is following at least one: target dynamic pressure, target chamber external condenser go out
Mouth temperature, goal systems delivery temperature, target indoor set evaporator temperature and goal systems current value；Institute
Stating preset relation is following at least one: described current dynamic pressure is more than or equal to described target dynamic pressure
Power, described current outdoor condensator outlet temperature are less than or equal to described target chamber external condenser outlet temperature
Degree, described current system delivery temperature less than or equal to described goal systems delivery temperature, described work as cup
Interior machine evaporator temperature is less than or equal to described target indoor set evaporator temperature and described current system electricity
Flow valuve is more than or equal to goal systems current value；Described coolant injection system also includes following at least one:
Outlet temperature detection device, is used for detecting described current outdoor condensator outlet temperature；Delivery temperature detects
Device, for described current system delivery temperature；Evaporator temperature detection device, is used for detecting current institute
State indoor machine evaporation temperature and current sensing means, be used for detecting presently described System current；Wherein
Described pressure-detecting device is additionally operable to detect described dynamic pressure.
Described processing means is additionally operable to perform following at least one: when carrying out described coolant first and filling,
Stop the first dwell time section after coolant injection the first infilling time section, receive described indoor environment temperature,
Described outdoor environment temperature and described current static pressure；When carrying out described coolant second and filling,
Stop the second dwell time section after coolant injection the second infilling time section, receive described current system and dynamically believe
Breath；And described compressor runs with target frequency after presetting the operation time, receive described current system and move
State information.
About the detail of coolant injection system and benefit and the above-mentioned details for coolant injection method
And benefit is identical, repeat no more in this.
Correspondingly, the present invention also provides for a kind of air-conditioner, described air-conditioner coolant injection described above system.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, but, the present invention does not limit
Detail in above-mentioned embodiment, in the technology concept of the present invention, can be to the present invention
Technical scheme carry out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that each the concrete technology described in above-mentioned detailed description of the invention is special
Levy, in the case of reconcilable, can be combined by any suitable means, in order to avoid need not
The repetition wanted, various possible compound modes are illustrated by the present invention the most separately.
Additionally, combination in any can also be carried out between the various different embodiment of the present invention, as long as its
Without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (17)
1. a coolant injection method, it is characterised in that described coolant injection method includes:
Detection indoor environment temperature and outdoor environment temperature；
Detection current system pressure；And
Carry out coolant injection according to described current system pressure, until described current system pressure more than or etc.
In goal systems pressure, wherein said goal systems pressure is true by indoor environment temperature and outdoor environment temperature
Fixed.
Coolant injection method the most according to claim 1, it is characterised in that this coolant injection side
Method also includes: when carrying out coolant injection, stops for the second time period after coolant injection first time period, inspection
Survey indoor environment temperature, outdoor environment temperature and current system pressure.
Coolant injection method the most according to claim 1 and 2, it is characterised in that work as described
Front system pressure is in the case of current dynamic pressure, described goal systems pressure are target dynamic pressure,
Described coolant injection method also includes:
Detect following at least one: current outdoor condensator outlet temperature, current system delivery temperature, when
Front indoor set evaporator temperature and current system current value；And
In the case of described current dynamic pressure is less than described target dynamic pressure, meet following at least one
Coolant injection is carried out: described current outdoor condensator outlet temperature is more than described target chamber external condenser during person
Outlet temperature, described current system delivery temperature more than described goal systems delivery temperature, described work as cup
Interior machine evaporator temperature is more than described target indoor set evaporator temperature and described current system current value
Less than goal systems current value.
4. a coolant injection method, it is characterised in that described coolant injection method includes:
Detection indoor environment temperature and outdoor environment temperature；
The current static pressure of detecting system；And
Carry out coolant first according to described current static pressure to fill, until described current static pressure is more than
Or equal to target quiescent pressure, wherein said goal systems pressure is by indoor environment temperature and outdoor environment temperature
Degree determines.
Coolant injection method the most according to claim 4, it is characterised in that described the most quiet
State pressure is more than or equal in the case of described target quiescent pressure, and described coolant injection method also includes:
Start compressor；
Detect the current system multidate information after described compressor start；
Carry out coolant second according to described current system multidate information to fill, until described current system is dynamic
Information and goal systems multidate information meet preset relation, and wherein said goal systems multidate information is by described
Indoor environment temperature and described outdoor environment temperature determine.
Coolant injection method the most according to claim 5, it is characterised in that
Described system dynamics information is following at least one: current dynamic pressure, current outdoor condenser go out
Mouth temperature, current system delivery temperature, current indoor machine evaporator temperature and current system current value；
Described goal systems multidate information is following at least one: target dynamic pressure, target chamber condensed exterior
Device outlet temperature, goal systems delivery temperature, target indoor set evaporator temperature and goal systems electric current
Value；
Described preset relation is following at least one: described current dynamic pressure is more than or equal to described target
Dynamic pressure, described current outdoor condensator outlet temperature go out less than or equal to described target chamber external condenser
Mouthful temperature, described current system delivery temperature less than or equal to described goal systems delivery temperature, described work as
Front indoor set evaporator temperature is less than or equal to described target indoor set evaporator temperature and described current system
System current value is more than or equal to goal systems current value.
Coolant injection method the most according to claim 5, it is characterised in that this coolant injection side
Method also includes following at least one:
When carrying out described coolant first and filling, after coolant injection the first infilling time section, stop the first stopping
Time period, detect described indoor environment temperature, described outdoor environment temperature and described current static pressure
Power；
When carrying out described coolant second and filling, after coolant injection the second infilling time section, stop the second stopping
Time period, detect described current system multidate information；And
Described compressor runs with target frequency after presetting the operation time, detects described current system and dynamically believes
Breath.
8. according to the coolant injection method of claim 6 or 7, it is characterised in that described current static
Pressure be described compressor not actuated in the case of current system high side pressure or current system low-pressure side
Pressure, described current dynamic pressure be in the case of described compressor start current system high side pressure or
Current system low-pressure lateral pressure.
9. a coolant injection system, it is characterised in that described coolant injection system includes:
Indoor temperature detection device, is used for detecting indoor environment temperature；
Outdoor temperature detection device, is used for detecting outdoor environment temperature；
Pressure-detecting device, is used for detecting current system pressure；And
Processing means, is used for receiving described indoor environment temperature, described outdoor environment temperature and described works as
Front system pressure, and carry out coolant injection according to the current system pressure received, until described current system
System pressure is more than or equal to goal systems pressure, and wherein said goal systems pressure is by the indoor ring received
Border temperature and outdoor environment temperature determine.
Coolant injection system the most according to claim 9, it is characterised in that described processing means is also
For: when carrying out described coolant first and filling, stop after controlling coolant injection the first infilling time section
After first dwell time section, receive described indoor environment temperature, described outdoor environment temperature and current
System pressure.
11. according to the coolant injection system described in claim 9 or 10, it is characterised in that described
Current system pressure be current dynamic pressure, described goal systems pressure be the situation of target dynamic pressure
Under, described coolant injection system also includes: outlet temperature detection device, is used for detecting current outdoor condensation
Device outlet temperature；Exhaust temperature detection means, is used for detecting current system delivery temperature；Evaporator temperature
Detection device, is used for detecting current indoor machine evaporator temperature and current sensing means, is used for detecting inspection
Survey described System current,
Wherein, at described current dynamic pressure less than in the case of described target dynamic pressure, meet below
Coolant injection is carried out: described current outdoor condensator outlet temperature is more than outside described target chamber during at least one
Condensator outlet temperature, described current system delivery temperature are more than described goal systems delivery temperature, described
Current indoor machine evaporator temperature is more than described target indoor set evaporator temperature and described current system electricity
Flow valuve is less than goal systems current value.
12. 1 kinds of coolant injection systems, it is characterised in that described coolant injection system includes:
Indoor temperature detection device, is used for detecting indoor environment temperature；
Outdoor temperature detection device, is used for detecting outdoor environment temperature；
Pressure-detecting device, for the current static pressure of detecting system；And
Processing means, is used for receiving described indoor environment temperature, described outdoor environment temperature and described works as
Front static pressure, and carry out coolant first according to the current static pressure received and fill, work as until described
Front static pressure is more than or equal to target quiescent pressure, and wherein said goal systems pressure is by the room received
Interior ambient temperature and outdoor environment temperature determine.
13. according to coolant injection system described in claim 12, it is characterised in that described processing means
It is additionally operable to: in the case of described current static pressure is more than or equal to described target quiescent pressure, starts
Compressor；
Described coolant injection system also includes that multidate information detects device, is used for detecting described compressor start
After current system multidate information；
Described processing means is additionally operable to carry out coolant second according to described current system multidate information and fills, directly
Preset relation, wherein said target is met to described current system multidate information and goal systems multidate information
System dynamics information is determined by described indoor environment temperature and described outdoor environment temperature.
14. according to coolant injection system described in claim 13, it is characterised in that
Described system dynamics information is following at least one: current dynamic pressure, current outdoor condenser go out
Mouth temperature, current system delivery temperature, current indoor machine evaporator temperature and current system current value；
Described goal systems multidate information is following at least one: target dynamic pressure, target chamber condensed exterior
Device outlet temperature, goal systems delivery temperature, target indoor set evaporator temperature and goal systems current value；
Described preset relation is following at least one: described current dynamic pressure is more than or equal to described target
Dynamic pressure, described current outdoor condensator outlet temperature go out less than or equal to described target chamber external condenser
Mouthful temperature, described current system delivery temperature less than or equal to described goal systems delivery temperature, described work as
Front indoor set evaporator temperature is less than or equal to described target indoor set evaporator temperature and described current system
System current value is more than or equal to goal systems current value；
Described coolant injection system also includes following at least one: outlet temperature detects device, is used for detecting
Described current outdoor condensator outlet temperature；Exhaust temperature detection means, for described current system aerofluxus
Temperature；Evaporator temperature detection device, is used for detecting presently described indoor machine evaporation temperature and electric current inspection
Survey device, be used for detecting presently described System current；
Wherein said pressure-detecting device is additionally operable to detect described dynamic pressure.
15. according to coolant injection system described in claim 13, it is characterised in that described processing means
It is additionally operable to perform following at least one:
When carrying out described coolant first and filling, after coolant injection the first infilling time section, stop the first stopping
Time period, receive described indoor environment temperature, described outdoor environment temperature and described current static pressure
Power；
When carrying out described coolant second and filling, after coolant injection the second infilling time section, stop the second stopping
Time period, receive described current system multidate information；And
Described compressor runs with target frequency after presetting the operation time, receives described current system and dynamically believes
Breath.
16. according to coolant injection system described in claims 14 or 15, it is characterised in that described currently
Static pressure be described compressor not actuated in the case of current system high side pressure or current system low
Pressure lateral pressure, described current dynamic pressure is current system high pressure side pressure in the case of described compressor start
Power or current system low-pressure lateral pressure.
17. 1 kinds of air-conditioners, it is characterised in that described air-conditioner includes in claim 9-16 arbitrary
Coolant injection system described in item claim.
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| CN201610279643.3A CN106016867A (en) | 2016-04-28 | 2016-04-28 | Coolant charging method and system and air conditioner |
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| CN107906807A (en) * | 2017-10-31 | 2018-04-13 | 广东美的暖通设备有限公司 | A kind of control method of coolant injection, control system and air conditioner |
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