CN106568250A - Refrigerant filling machine and method for carrying out vacuum-pumping, leakage detecting and refrigerant filling by utilizing refrigerant filling machine - Google Patents
Refrigerant filling machine and method for carrying out vacuum-pumping, leakage detecting and refrigerant filling by utilizing refrigerant filling machine Download PDFInfo
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- CN106568250A CN106568250A CN201610970458.9A CN201610970458A CN106568250A CN 106568250 A CN106568250 A CN 106568250A CN 201610970458 A CN201610970458 A CN 201610970458A CN 106568250 A CN106568250 A CN 106568250A
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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
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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
- F25B49/00—Arrangement or mounting of control or safety devices
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
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Abstract
The invention discloses a refrigerant filling machine, and provides a refrigerant filling machine, which is time-saving and labor-saving in operation, saves manpower and material resources, and integrates multiple functions, and a method for carrying out vacuum-pumping, leakage detecting and refrigerant filling by utilizing the refrigerant filling machine. The refrigerant filling machine solves the technical problems that manual independent operation is needed, an operation process is complex, time and labor are wasted, misoperation is extremely liable to generate, certain potential safety hazards exist and the like in the prior art. The refrigerant filling machine comprises a high-pressure pipeline and a low-pressure pipeline which are correspondingly connected to a high-pressure end and a low-pressure end of a refrigerating system, wherein the other end of the high-pressure pipeline and the other end of the low-pressure pipeline are connected to one end of a valve body pipeline in parallel correspondingly; the other end of the valve body pipeline is connected with a vacuum pipeline and a refrigerant pipeline in parallel; the other end of the vacuum pipeline is connected with a vacuum pump; the other end of the refrigerant pipeline is connected with a refrigerant storage steel cylinder; the refrigerant storage steel cylinder is placed on an electronic scale; solenoid valves capable of controlling on-off of corresponding pipelines are arranged on the pipelines; and the solenoid valves and the electronic scale are connected onto a control system.
Description
Technical field
The present invention relates to a kind of refrigerant filling machine, more particularly to a kind of operation is time saving and energy saving, uses manpower and material resources sparingly, collects many work(
The method that evacuation, leak detection and coolant charging can be carried out in the refrigerant filling machine of one and with the equipment.
Background technology
Refrigeration system generally requires to carry out routine cleaning maintenance, but if be dried not thoroughly after cleaning, refrigeration system
Retain certain moisture content in pipeline unavoidably, if there being moisture in pipeline, refrigeration system when running it is inevitable in its throttle mechanism and
Low-pressure section produces " ice berg ", cause refrigeration system cannot normal work, be this before cold-producing medium filling, often through vacuum pump
Make refrigeration system reach vacuum state, the moisture in refrigeration system is effectively removed with this, simultaneously because refrigeration system long-time
Operation, related pipeline component produces corrosion unavoidably, loosens leakage event, also needed to refrigeration system before filling cold-producing medium for this
System is hunted leak.And existing coolant charging method is usually：With vacuum pump connection table group, manually carry out system and take out very
Sky, pressurize leak detection, the serial conversion operation of coolant injection, generally require skilled practitioner and are operated, not only operated
Journey is loaded down with trivial details, wastes time and energy, and easily produces maloperation, there is certain potential safety hazard.
The content of the invention
The present invention is mainly time saving and energy saving there is provided a kind of operation, uses manpower and material resources sparingly, the coolant for gathering multi -function in integral whole
Charging machine and the method that evacuation, leak detection and coolant charging are carried out with the equipment, solve
The system of carrying out evacuation, pressurize leak detection, the serial conversion operation of coolant injection, not only professional proficiency level have high demands, operated
Journey is loaded down with trivial details, wastes time and energy, and easily produces maloperation, there is the technical problem of certain potential safety hazard etc..
What the above-mentioned technical problem of the present invention was mainly addressed by following technical proposals：A kind of refrigerant filling machine,
Including the corresponding pressure duct and low pressure line for being connected to the high and low pressure side of refrigeration system, the pressure duct and low pressure line
The corresponding one end for being connected in valve body pipeline in parallel of the other end, the other end of valve body pipeline be connected in parallel again vacuum line and
Refrigerant line, the other end of vacuum line are connected to vacuum pump, and the other end of refrigerant line is connected to cold-producing medium storage steel
Bottle, cold-producing medium storage steel cylinder are placed on electronic scale, and on high-pressure hose, low-pressure hose, vacuum line and refrigerant line
The electromagnetic valve of controllable correspondence pipeline break-make is equipped with, electromagnetic valve and electronic scale are connected in control system and by control system
Automatically control the break-make of each pipeline.One end of valve body pipeline is connected in parallel vacuum line and refrigerant line, on blank pipe road
The other end is connected to vacuum pump, and the other end of refrigerant line is connected to the cold-producing medium storage steel cylinder being placed on electronic scale, valve
The other end of body pipeline is again in parallel, and high and low pressure pipeline is relative with the high and low pressure side of refrigeration system connects, due to equal on each pipeline
It is provided with the electromagnetic valve of controllable correspondence pipeline break-make, you can the break-make of each pipeline is automatically controlled by control system, realizes taking out
Vaccum dewatering, vacuum pressurize leak detection, and the function of coolant charging, gather multi -function in integral whole, and Automatic Control, operation save time
It is laborsaving, use manpower and material resources sparingly, it is safe and reliable.
Preferably, high-pressure side electromagnetic valve and high pressure end sensor are in series with the pressure duct, in low pressure line
On be in series with low-pressure end electromagnetic valve and low pressure end sensor, vacuum solenoid and vacuum transducer are in series with vacuum line,
Cold-producing medium electromagnetic valve is in series with refrigerant line, and high pressure end sensor, low pressure end sensor and vacuum transducer are electric
It is connected in control system.Sensor carries out selection behaviour for detecting the pressure of correspondence pipeline and outputing signal to control system
Make, realize full-automatic operation.
As it is further preferred that being in series with protection electromagnetism on vacuum line between the vacuum transducer and valve body pipeline
Valve, is in series with high-pressure stop valve on the pressure duct between high-pressure side electromagnetic valve and high pressure end sensor, in low-pressure end electromagnetism
Low-pressure shutoff valve is in series with low pressure line between valve and low pressure end sensor.By arranging protection electromagnetic valve, it is to protect
Shield vacuum transducer is subjected to malleation damage in coolant charging；High and low pressure stop valve be manually operated termination charging machine with
The connection of refrigeration system, facilitates emergency operation, improves security reliability.
Preferably, on the valve body pipeline gas exhaust piping also in parallel, aerofluxuss electromagnetism is in series with gas exhaust piping
Valve.The coolant remained in valve body pipeline is removed by gas exhaust piping using front, it is to avoid different types of coolant mutually mixes.
Preferably, the control system is connected with warning system.What warning system occurred in being used to point out operating process
Abnormal conditions.
A kind of method that refrigerant filling machine carries out evacuation, leak detection and coolant charging, including order below step：
1）It is connected to pressure duct and low pressure line corresponding in the high and low pressure side of refrigeration system, cold-producing medium storage steel cylinder is placed
On electronic scale, filling electromechanical source is opened；
2）Refrigerant category is selected in control system, is preset refrigeration system pumpdown time t1, refrigeration system vacuum degree a,
Refrigeration system vacuum dwell time b, refrigeration system vacuum allow changing value c, cold-producing medium filling weight d, the height of refrigeration system
（Or it is low）Pressure value e of pressure side, valve body pipeline pumpdown time t2；
3）Evacuation：
1. high-pressure stop valve and low-pressure shutoff valve are opened, starts vacuum pump, control system automatically controls vacuum solenoid, protection electricity
Magnet valve, high-pressure side electromagnetic valve, low-pressure end electromagnetic valve are opened；
2., in default refrigeration system pumpdown time t1, the refrigeration system vacuum of the display in control system reaches default
During value a, vacuum solenoid cuts out；When being not up to preset value a such as refrigeration system vacuum, warning system starts, and is failed to report greatly
It is alert；
4）Refrigeration system vacuum leak hunting：
After in the refrigeration system vacuum dwell time, b terminates, when refrigeration system vacuum is less than or equal to changing value c is allowed, leak detection
It is qualified；After such as in the dwell time, b terminates, when refrigeration system vacuum is more than changing value c, warning system starts, and carries out little failing to report
It is alert；
5）Cold-producing medium is filled：
1. control system automatically controls closing protection electromagnetic valve, cold-producing medium electromagnetic valve, high-pressure side electromagnetic valve and low-pressure end electromagnetic valve
Automatically open up；
2., when adding amount reaches cold-producing medium filling weight d, cold-producing medium electromagnetic valve, high-pressure side electromagnetic valve and low-pressure end electromagnetic valve are certainly
It is dynamic to close；
3. execution step 2. during, the cold-producing medium shown when electronic scale stores steel cylinder weight not to be occurred to become in one minute
During change, warning system starts, and points out unlatching refrigeration system to carry out low pressure suction and completes filling；
6）Operating pressure is detected：
Open refrigeration system and at least run 3 minutes, such as the height of refrigeration system（Or it is low）Pressure side reaches pressure value e of setting, filling
Terminate, such as the height of refrigeration system（Or it is low）When pressure side does not reach pressure value e of setting, from step 7）Supplement 2. starting in filling
Perform；
7）Supplement filling：
1. valve body pipeline evacuation：
Vacuum solenoid and protection electromagnetic valve, when startup vacuum pump reaches pumpdown time t2, vacuum are opened by control system
Pump is out of service, vacuum solenoid and protection closed electromagnetic valve；
2. cold-producing medium filling：
Cold-producing medium electromagnetic valve, high-pressure side electromagnetic valve and low-pressure end electromagnetic valve are automatically opened up, when the height of refrigeration system（Or it is low）Pressure side
When reaching pressure value e of setting, cold-producing medium electromagnetic valve is closed, supplement filling and terminate.
8）Repeat step 6）.
By carrying out evacuation eliminating water to refrigeration system, vacuum pressurize, and according to the change feelings of vacuum packing stage pressure
Condition judges refrigeration system with the presence or absence of leak source, and responds accordingly, is reported to the police when there is leak source, carries out after leak detection is qualified
Coolant charging, and filling operation is terminated according to filling coolant weight, detected by the automatic pressure to refrigeration system after filling again
Judge whether refrigeration system requires supplementation with filling, that is, when refrigeration system pressure is not reaching to design pressure value after filling, need to enter
Filling operation is supplemented, is repeatedly detected, until refrigeration system pressure reaches design pressure value, gathered multi -function in integral whole, it is whole-process automatic
Change control, it is time saving and energy saving to operate, and uses manpower and material resources sparingly, safe and reliable.
Preferably, performing the step 1）Before, it is first turned on exhaust solenoid valve and closes after 5 to 10 seconds.Using front logical
The exhaust solenoid valve for opening gas exhaust piping is crossed, the coolant remained in valve body pipeline is can remove, so as to avoid different types of coolant
Mutually mix.
Preferably, in the step 3）2. in, when the refrigeration system vacuum of the display in control system reach it is pre-
If during value a, vacuum pump continued to keep it turned on 2 minutes to 5 minutes.
Preferably, in the step 4）In, after such as in the dwell time, b terminates, refrigeration system vacuum is more than changing value
When system vacuum after c, and change maintains a fixed value, step 4 is repeated）.By postponing the pumpdown time, can
The air at the tiny position such as pore in thorough extraction refrigeration system, it is ensured that system vacuum keeps stable after vacuum pump is shut down.
Preferably, in the step 1）In, when refrigeration system shows pressure, warning system starts, and operation is automatic
Interrupt, the supplementary filling display lamp in control system is bright, points out execution step 7）Supplement filling.When refrigeration system shows pressure
During power, it was demonstrated that coolant is remained in refrigeration system, when control system prompting supplements filling, user can select as needed will system
Refrigerant recovering in cooling system, or carry out supplementing filling, provide the user with facility.
Therefore, refrigerant filling machine of the invention and the method for evacuation, leak detection and coolant charging is carried out with the equipment have
Following advantages：By evacuation eliminating water is carried out to refrigeration system, vacuum pressurize leak detection carries out coolant charging after leak detection is qualified, and
Filling operation is terminated according to filling coolant weight, then judges whether refrigeration system requires supplementation with filling, and Jing by pressure detecting
Cross and be repeatedly detected, until refrigeration system pressure reaches design pressure value, gather multi -function in integral whole, whole-course automation control, operation
It is time saving and energy saving, use manpower and material resources sparingly, it is safe and reliable；During further through in preoperative valve body pipeline empty, and extend take out
Vacuum time etc. improves system reliability.
Description of the drawings：
Fig. 1 is the structural representation of refrigerant filling machine of the present invention；
Fig. 2 is the workflow diagram of the present invention.
Specific embodiment：
Below by embodiment, and accompanying drawing is combined, technical scheme is described in further detail.
Embodiment：
As shown in figure 1, a kind of refrigerant filling machine of the present invention, including the corresponding high pressure for being connected to the high and low pressure side of refrigeration system
The other end of pipeline 1 and low pressure line 2, pressure duct 1 and low pressure line 2 is corresponding to be connected in 3 one end of valve body pipeline in parallel
On interface, another end interface of valve body pipeline 3 is connected in parallel vacuum line 4 and refrigerant line 6 again, vacuum line 4 it is another
One end is connected to vacuum pump 5, and the other end of refrigerant line 6 is connected to cold-producing medium storage steel cylinder 7, and cold-producing medium storage steel cylinder 7 is put
Put on electronic scale 8, high-pressure side electromagnetic valve 9 and high pressure end sensor 10, high-pressure side therein are in series with again on pressure duct 1
Electromagnetic valve 9 is located on the pressure duct 1 of valve body pipeline 3, and between high-pressure side electromagnetic valve 9 and high pressure end sensor 10
High-pressure stop valve 17 is in series with pressure duct 1, low-pressure end electromagnetic valve 11 and low pressure end sensor are in series with low pressure line 2
12, low-pressure end electromagnetic valve 11 therein is located on the low pressure line 2 of valve body pipeline 3, and in low-pressure end electromagnetic valve 11 and low
Low-pressure shutoff valve 18 is in series with low pressure line 2 between pressure side sensor 12, vacuum solenoid is in series with vacuum line 4
13 and vacuum transducer 14, vacuum transducer therein 14 is located on the vacuum line 4 of valve body pipeline 3, and is passed in vacuum
Protection electromagnetic valve 16 is in series with vacuum line 4 between sensor 14 and valve body pipeline 3, system is in series with refrigerant line 6
Cryogen electromagnetic valve 15, on valve body pipeline 3, gas exhaust piping 19 also in parallel, is in series with exhaust solenoid valve on gas exhaust piping 19
20, and high pressure end sensor 10, low pressure end sensor 12, vacuum transducer 14, exhaust solenoid valve 20 and electronic scale 8 electrically connect
In the control system with warning system, and the break-make or sound and light alarm of each pipeline are automatically controlled by control system.
As shown in Fig. 2 a kind of method that refrigerant filling machine carries out evacuation, leak detection and coolant charging, including following suitable
Sequence step：
1）It is connected to pressure duct 1 and low pressure line 2 corresponding in the high and low pressure side of refrigeration system first, opens aerofluxuss electromagnetism
Valve 20 is cut out after being kept for 5 to 10 seconds, then cold-producing medium storage steel cylinder 7 is placed on electronic scale 8, opens filling electromechanical source；Now
When refrigeration system shows pressure, warning system starts, and operation is interrupted automatically, the supplementary filling display lamp in control system
It is bright, point out execution step 7）Supplement filling；
2）Refrigerant category is selected in control system, is preset refrigeration system pumpdown time t1, refrigeration system vacuum degree a,
Refrigeration system vacuum dwell time b, refrigeration system vacuum allow changing value c, cold-producing medium filling weight d, the height of refrigeration system
（Or it is low）Pressure value e of pressure side, 3 pumpdown time of valve body pipeline t2；
3）Evacuation：
1. high-pressure stop valve 17 and low-pressure shutoff valve 18 are opened, starts vacuum pump 5, control system automatically controls vacuum solenoid
13rd, electromagnetic valve 16, high-pressure side electromagnetic valve 9, low-pressure end electromagnetic valve 11 is protected to open；
2., in default refrigeration system pumpdown time t1, the refrigeration system vacuum of the display in control system reaches default
During value a, vacuum pump 5 continues to keep it turned on 2 minutes to 5 minutes, and vacuum solenoid 13 cuts out；Such as refrigeration system vacuum not
When reaching preset value a, warning system starts, and is failed to report greatly police；
4）Refrigeration system vacuum leak hunting：
1. after in the refrigeration system vacuum dwell time, b terminates, when refrigeration system vacuum is less than or equal to changing value c is allowed, inspection
Leakage is qualified；After such as in the dwell time, b terminates, when refrigeration system vacuum is more than changing value c, warning system starts, and carries out little leakage
Report to the police；
2. after such as in the dwell time, b terminates, refrigeration system vacuum is more than changing value c, and the system vacuum after changing is maintained
In a fixed value, step 4 is repeated）In 1.；
5）Cold-producing medium is filled：
1. control system automatically controls closing protection electromagnetic valve 16, cold-producing medium electromagnetic valve 15, high-pressure side electromagnetic valve 9 and low-pressure end electricity
Magnet valve 11 is automatically opened up；
2. when adding amount reaches cold-producing medium filling weight d, cold-producing medium electromagnetic valve 15, high-pressure side electromagnetic valve 9 and low-pressure end electromagnetism
Valve 11 is automatically switched off；
3. execution step 2. during, when electronic scale 8 show cold-producing medium store 7 weight of steel cylinder in one minute without occur
During change, warning system starts, and points out unlatching refrigeration system to carry out low pressure suction and completes filling, that is, opens refrigeration system and adopt
Take low pressure suction form and complete filling；
6）Operating pressure is detected：
1. open refrigeration system and at least run 3 minutes, such as the height of refrigeration system（Or it is low）Pressure side reaches pressure value e of setting, plus
Note terminates, such as the height of refrigeration system（Or it is low）When pressure side does not reach pressure value e of setting, from step 7）Supplement 2. opening in filling
Begin to perform；
2. remove：Pressure duct 1 is removed from refrigeration system, high-pressure side electromagnetic valve 9 is closed, then in the refrigeration shape of refrigeration system
Under state, allow refrigeration system that the cold-producing medium in each pipeline is aspirated in refrigeration system.
3. wait 1 minute, low pressure line 2 is removed from refrigeration system, refrigeration system is closed, close filling electromechanical source.
7）Supplement filling：
1. 3 evacuation of valve body pipeline：
Vacuum solenoid 13 and protection electromagnetic valve 16 are opened by control system, when startup vacuum pump 5 reaches pumpdown time t2,
Vacuum pump 5 is out of service, and vacuum solenoid 13 and protection electromagnetic valve 16 are closed；
2. cold-producing medium filling：
Cold-producing medium electromagnetic valve 15, high-pressure side electromagnetic valve 9 and low-pressure end electromagnetic valve 11 are automatically opened up, when the height of refrigeration system（Or it is low）
When pressure side reaches pressure value e of setting, cold-producing medium electromagnetic valve 15 is closed, supplement filling and terminate；
8）Repeat step 6）.
Period, if the hypotony in cold-producing medium storage steel cylinder 7, is not enough to cold-producing medium be filled to refrigeration system, then has
Necessity allows refrigeration system that cold-producing medium is extracted from charging machine, that is, after connecting pressure duct 1 and low pressure line 2, close high-pressure side
Electromagnetic valve 9 and high-pressure stop valve 17, low-pressure end electromagnetic valve 11 and low-pressure shutoff valve 18 are opened, and then start refrigeration system.
Specific embodiment described herein is only the design explanation for example to the present invention.Technology belonging to of the invention
The technical staff in field can make various modifications or supplement or adopt similar mode to described specific embodiment
Substitute, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of refrigerant filling machine, including the corresponding pressure duct for being connected to the high and low pressure side of refrigeration system（1）And low pressure line
（2）, it is characterised in that：The pressure duct（1）And low pressure line（2）The other end corresponding be connected in valve body pipeline in parallel
（3）One end, valve body pipeline（3）The other end be connected in parallel vacuum line again（4）And refrigerant line（6）, vacuum line
（4）The other end be connected to vacuum pump（5）, refrigerant line（6）The other end be connected to cold-producing medium storage steel cylinder（7）, refrigeration
Steel cylinder is stored in agent（7）It is placed on electronic scale（8）On, and in high-pressure hose（1）, low-pressure hose（2）, vacuum line（4）And refrigeration
Agent pipeline（6）On be equipped with the electromagnetic valve of controllable correspondence pipeline break-make, electromagnetic valve and electronic scale（8）It is connected in control system
And the break-make of each pipeline is automatically controlled by control system.
2. refrigerant filling machine according to claim 1, it is characterised in that：In the pressure duct（1）On be in series with high pressure
End electromagnetic valve（9）With high pressure end sensor（10）, in low pressure line（2）On be in series with low-pressure end electromagnetic valve（11）Pass with low-pressure end
Sensor（12）, in vacuum line（4）On be in series with vacuum solenoid（13）And vacuum transducer（14）, in refrigerant line（6）
On be in series with cold-producing medium electromagnetic valve（15）, and high pressure end sensor（10）, low pressure end sensor（12）And vacuum transducer（14）
It is electrically connected with control system.
3. refrigerant filling machine according to claim 2, it is characterised in that：In the vacuum transducer（14）With valve body pipeline
（3）Between vacuum line（4）On be in series with protection electromagnetic valve（16）, in high-pressure side electromagnetic valve（9）With high pressure end sensor
（10）Between pressure duct（1）On be in series with high-pressure stop valve（17）, in low-pressure end electromagnetic valve（11）With low pressure end sensor
（12）Between low pressure line（2）On be in series with low-pressure shutoff valve（18）.
4. the refrigerant filling machine according to claim 1 or 2 or 3, it is characterised in that：In the valve body pipeline（3）On also simultaneously
Join gas exhaust piping（19）, in gas exhaust piping（19）On be in series with exhaust solenoid valve（20）.
5. the refrigerant filling machine according to claim 1 or 2 or 3, it is characterised in that：The control system is connected with warning system
System.
6. a kind of method that refrigerant filling machine carries out evacuation, leak detection and coolant charging, it is characterised in that：Including order below
Step：
1）By pressure duct（1）And low pressure line（2）It is corresponding to be connected in the high and low pressure side of refrigeration system, cold-producing medium storage steel
Bottle（7）It is placed on electronic scale（8）On, open filling electromechanical source；
2）Refrigerant category is selected in control system, is preset refrigeration system pumpdown time t1, refrigeration system vacuum degree a,
Refrigeration system vacuum dwell time b, refrigeration system vacuum allow changing value c, cold-producing medium filling weight d, the height of refrigeration system
（Or it is low）Pressure value e of pressure side, valve body pipeline（3）Pumpdown time t2；
3）Evacuation：
1. open high-pressure stop valve（17）And low-pressure shutoff valve（18）, start vacuum pump（5）, control system automatically controls vacuum electric
Magnet valve（13）, protection electromagnetic valve（16）, high-pressure side electromagnetic valve（9）, low-pressure end electromagnetic valve（11）Open；
2., in default refrigeration system pumpdown time t1, the refrigeration system vacuum of the display in control system reaches default
During value a, vacuum solenoid（13）Close；When being not up to preset value a such as refrigeration system vacuum, warning system starts, and carries out big
Fail to report police；
4）Refrigeration system vacuum leak hunting：
After in the refrigeration system vacuum dwell time, b terminates, when refrigeration system vacuum is less than or equal to changing value c is allowed, leak detection
It is qualified；After such as in the dwell time, b terminates, when refrigeration system vacuum is more than changing value c, warning system starts, and carries out little failing to report
It is alert；
5）Cold-producing medium is filled：
1. control system automatically controls closing protection electromagnetic valve（16）, cold-producing medium electromagnetic valve（15）, high-pressure side electromagnetic valve（9）With it is low
Pressure side electromagnetic valve（11）Automatically open up；
2. when adding amount reaches cold-producing medium filling weight d, cold-producing medium electromagnetic valve（15）, high-pressure side electromagnetic valve（9）And low-pressure end
Electromagnetic valve（11）It is automatically switched off；
3. execution step 2. during, work as electronic scale（8）The cold-producing medium storage steel cylinder of display（7）Weight did not had in one minute
When changing, warning system starts, and points out unlatching refrigeration system to carry out low pressure suction and completes filling；
6）Operating pressure is detected：
Open refrigeration system and at least run 3 minutes, such as the height of refrigeration system（Or it is low）Pressure side reaches pressure value e of setting, filling
Terminate, such as the height of refrigeration system（Or it is low）When pressure side does not reach pressure value e of setting, from step 7）Supplement 2. starting in filling
Perform；
7）Supplement filling：
1. valve body pipeline（3）Evacuation：
Vacuum solenoid is opened by control system（13）With protection electromagnetic valve（16）, start vacuum pump（5）When reaching evacuation
Between t2 when, vacuum pump（5）It is out of service, vacuum solenoid（13）With protection electromagnetic valve（16）Close；
2. cold-producing medium filling：
Cold-producing medium electromagnetic valve（15）, high-pressure side electromagnetic valve（9）With low-pressure end electromagnetic valve（11）Automatically open up, when the height of refrigeration system
（Or it is low）When pressure side reaches pressure value e of setting, cold-producing medium electromagnetic valve is closed（15）, supplement filling and terminate；
8）Repeat step 6）.
7. the method that refrigerant filling machine according to claim 6 carries out evacuation, leak detection and coolant charging, its feature exist
In：Performing the step 1）Before, it is first turned on exhaust solenoid valve（20）Close after 5 to 10 seconds.
8. the method that evacuation, leak detection and coolant charging are carried out with refrigerant filling machine according to claim 6 or 7, which is special
Levy and be：In the step 3）2. in, when the refrigeration system vacuum of the display in control system reaches preset value a, very
Empty pump（5）Continue to keep it turned on 2 minutes to 5 minutes.
9. the method that evacuation, leak detection and coolant charging are carried out with refrigerant filling machine according to claim 6 or 7, which is special
Levy and be：In the step 4）In, after such as in the dwell time, b terminates, refrigeration system vacuum is more than changing value c, and after changing
System vacuum when maintaining a fixed value, repeat step 4）.
10. the method that evacuation, leak detection and coolant charging are carried out with refrigerant filling machine according to claim 6 or 7, which is special
Levy and be：In the step 1）In, when refrigeration system shows pressure, warning system starts, and operation is interrupted automatically, control system
Supplementary filling display lamp on system is bright, points out execution step 7）Supplement filling.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970458.9A CN106568250A (en) | 2016-10-28 | 2016-10-28 | Refrigerant filling machine and method for carrying out vacuum-pumping, leakage detecting and refrigerant filling by utilizing refrigerant filling machine |
| PCT/CN2017/103938 WO2018077001A1 (en) | 2016-10-28 | 2017-09-28 | Refrigerant filling machine and method for creating vacuum, leakage detection and refrigerant filling using device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970458.9A CN106568250A (en) | 2016-10-28 | 2016-10-28 | Refrigerant filling machine and method for carrying out vacuum-pumping, leakage detecting and refrigerant filling by utilizing refrigerant filling machine |
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| CN106568250A true CN106568250A (en) | 2017-04-19 |
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| CN201610970458.9A Pending CN106568250A (en) | 2016-10-28 | 2016-10-28 | Refrigerant filling machine and method for carrying out vacuum-pumping, leakage detecting and refrigerant filling by utilizing refrigerant filling machine |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112013583A (en) * | 2020-05-13 | 2020-12-01 | 北京机械设备研究所 | Integrated device for automatically detecting leakage and filling fluorine for high-power air conditioner |
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| WO2018077001A1 (en) * | 2016-10-28 | 2018-05-03 | 浙江飞越机电有限公司 | Refrigerant filling machine and method for creating vacuum, leakage detection and refrigerant filling using device |
| CN107091345A (en) * | 2017-04-25 | 2017-08-25 | 浙江飞越机电有限公司 | Charging machine passage control valve and the path control method vacuumized using the control valve |
| WO2018205518A1 (en) * | 2017-05-10 | 2018-11-15 | 浙江飞越机电有限公司 | Control system and method for vacuum degree detection |
| CN108344217A (en) * | 2018-04-09 | 2018-07-31 | 奥克斯空调股份有限公司 | A kind of refrigerant liquid amount adjusting apparatus, air conditioner test adjustment system and air-conditioning refrigerant method of adjustment |
| CN108870814A (en) * | 2018-05-22 | 2018-11-23 | 青岛海尔空调器有限总公司 | Air conditioner external vacuumizes and is perfused the device and method of refrigerant |
| CN108845592A (en) * | 2018-08-20 | 2018-11-20 | 苏州佐竹冷热控制技术有限公司 | Coolant charging measuring system and coolant charging method |
| CN108845592B (en) * | 2018-08-20 | 2024-02-27 | 苏州佐竹冷热控制技术有限公司 | Refrigerant filling measurement system and refrigerant filling method |
| CN112673237A (en) * | 2018-10-15 | 2021-04-16 | 威科生产有限公司 | Intelligent measuring instrument |
| CN109682136A (en) * | 2019-01-27 | 2019-04-26 | 珠海格力电器股份有限公司 | Heat recovery multi-split air conditioner and vacuumizing method thereof |
| CN109974228A (en) * | 2019-02-01 | 2019-07-05 | 青岛海尔空调器有限总公司 | A kind of air-conditioner outdoor unit vacuum-pumping method and system |
| CN109974228B (en) * | 2019-02-01 | 2021-09-21 | 重庆海尔空调器有限公司 | Air conditioner outdoor unit evacuation method and system |
| CN112113372A (en) * | 2019-06-20 | 2020-12-22 | 中科赛凌(中山)低温设备有限公司 | Refrigerant charging method and system |
| WO2021227894A1 (en) * | 2020-05-12 | 2021-11-18 | 浙江飞越机电有限公司 | Intelligent coolant adding control system |
| CN111649509A (en) * | 2020-05-12 | 2020-09-11 | 浙江飞越机电有限公司 | Intelligent refrigerant filling control system |
| CN112013583A (en) * | 2020-05-13 | 2020-12-01 | 北京机械设备研究所 | Integrated device for automatically detecting leakage and filling fluorine for high-power air conditioner |
| CN111777029A (en) * | 2020-06-17 | 2020-10-16 | 新乡航空工业(集团)有限公司 | Automatic vacuum pumping and liquid injecting device of pod environment control system |
| CN111879036A (en) * | 2020-08-19 | 2020-11-03 | 格力电器（武汉）有限公司 | Enthalpy difference table vacuumizing device and control method thereof |
| CN112344607A (en) * | 2020-10-13 | 2021-02-09 | 浙江飞越机电有限公司 | Intelligent control method for obtaining optimal recovery speed of refrigerant recovery machine |
| CN112378049A (en) * | 2020-10-21 | 2021-02-19 | 浙江飞越机电有限公司 | Intelligent identification and service matching management method for refrigeration equipment |
| CN112594982A (en) * | 2020-12-31 | 2021-04-02 | 广东积微科技有限公司 | Vacuumizing control method of multi-split system |
| CN112594982B (en) * | 2020-12-31 | 2022-12-13 | 广东积微科技有限公司 | Vacuumizing control method of multi-split system |
| CN113531963A (en) * | 2021-06-16 | 2021-10-22 | 青岛海尔空调器有限总公司 | Air conditioner debugging equipment |
| CN113623907A (en) * | 2021-07-14 | 2021-11-09 | 广州巴兰仕机械有限公司 | Air conditioner refrigerant recovery and charging system and control method thereof |
| WO2023284095A1 (en) * | 2021-07-14 | 2023-01-19 | 广州巴兰仕机械有限公司 | Air conditioning refrigerant recovery and charging system and control method therefor |
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Application publication date: 20170419 |