CN105485868B - The reset control method of the interior machine electric expansion valve of multi-connected machine - Google Patents
The reset control method of the interior machine electric expansion valve of multi-connected machine Download PDFInfo
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- CN105485868B CN105485868B CN201510979800.7A CN201510979800A CN105485868B CN 105485868 B CN105485868 B CN 105485868B CN 201510979800 A CN201510979800 A CN 201510979800A CN 105485868 B CN105485868 B CN 105485868B
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- expansion valve
- electric expansion
- machine electric
- interior machine
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of reset control method of the interior machine electric expansion valve of multi-connected machine, the key of this method is：Whether machine electric expansion valve has resetted in judgement, if it is, being directly entered in next step, if it is not, then with maximum opening the step number of 100 steps is added to close interior machine electric expansion valve, 80 steps are then opened, 80 steps are finally closed, and by the interior machine electric expansion valve labeled as having resetted, are entered back into next step；After multi-connected machine unit receives power-on instruction, it determines whether to open interior machine electric expansion valve, if, in then opening machine electric expansion valve and by open interior machine electric expansion valve labeled as not resetting, multi-connected machine unit is run further according to power-on instruction, after being connected to shutdown command, interior machine electric expansion valve adds the step number of 100 steps to close currently to run aperture, and the interior machine electric expansion valve after closing is labeled as having resetted.This method is avoided that interior machine electric expansion valve, and because adjusting, frequency is excessive, it is excessive to adjust step number.
Description
Technical field
It is especially a kind of reset control of the interior machine electric expansion valve of multi-connected machine the present invention relates to the control method of air conditioner
Method processed.
Background technology
The VRF Air Conditioning System of the prior art is typically to be used by an outdoor unit and the matching of Duo Tai indoor units, Ke Yitong
When to multiple rooms into trip temperature adjust.And multi-connected machine is after powered up, it is necessary to indoor electronic expansion valve to each indoor unit
It is resetted, makes its aperture unified to 0 degree, convenient for subsequent control.The reset controlling party of the interior machine electric expansion valve of the prior art
Method is, after being powered each time, due to not knowing the specific aperture of each interior machine electric expansion valve, therefore to all interior electromechanical sons
Expansion valve is unified to close according to setting step number (the generally electric expansion valve maximum opening adds 100 steps), to ensure that electronics is swollen
Swollen valve is completely in closed state.
The maximum drawback of the reset control method of the interior machine electric expansion valve of the multi-connected machine of the prior art is, to each interior
The adjusting frequency of machine electric expansion valve is excessive, and the step number adjusted every time is excessive.For example some interior machine electric expansion valve is current
Aperture is 0 and maximum opening is 500 steps, then also to turn off 600 steps so that the needle and nozzle of the interior machine electric expansion valve into
The extruding that row is 600 times, and after reset, the excessive stresses between needle and nozzle cannot also discharge always.Assuming that certain
Indoor unit is not keyed up always, and user After Hours can power off unit once daily, and second day is powered unit, then
For the interior machine electric expansion valve of the indoor unit, all can needle and nozzle be subjected to 600 extruding daily, and squeeze and generate
Stress will continue to accumulate and cannot discharge always, be so easy to so that the interior machine electric expansion valve generates failure, make for a long time
It is not tight into that can not open or close.
The content of the invention
The technical problem to be solved by the present invention is to provide one kind and be avoided that interior machine electric expansion valve because adjusting frequency mistake
It is more, adjust step number it is excessive and break down multi-connected machine interior machine electric expansion valve reset control method.
The technical solution of the present invention is to provide a kind of reset control method of the interior machine electric expansion valve of multi-connected machine,
It is as follows：
A, it is powered to indoor unit, and whether judges the indoor unit in testing results pattern, if it is, interior electromechanical son is swollen
Swollen valve adds the step number of 100 steps to close with maximum opening, then with maximum opening add 100 steps and divided by 2 step number open, and should
Then interior machine electric expansion valve powers off indoor unit labeled as not resetting；If it is not, then into next step；
B, whether machine electric expansion valve has resetted in judging, if it is, being directly entered in next step, if it is not, then will
Interior machine electric expansion valve adds the step number of 100 steps to close with maximum opening, then opens 80 steps, finally closes 80 steps, and by the interior machine
Electric expansion valve enters back into next step labeled as having resetted；
C, indoor unit is standby；
D, after multi-connected machine unit receives power-on instruction, determine whether to open interior machine electric expansion valve,
If it is not, then running multi-connected machine unit according to power-on instruction, multi-connected machine unit, interior machine are closed after being connected to shutdown command
Electric expansion valve is failure to actuate always during the start of multi-connected machine unit is shut down again；
If it is, in opening machine electric expansion valve and by open interior machine electric expansion valve labeled as not resetting, then root
Multi-connected machine unit is run according to power-on instruction, after being connected to shutdown command, interior machine electric expansion valve adds 100 steps currently to run aperture
Step number is closed, and the interior machine electric expansion valve after closing is labeled as having resetted.
Using above method, the reset control method of the interior machine electric expansion valve of multi-connected machine of the present invention and prior art phase
Than haing the following advantages：
1st, during first energization, the judgement to multi-connected machine test pattern is added, it is ensured that for unit before dispatching from the factory, interior electromechanical son is swollen
Swollen valve is in opening state, convenient for subsequent installation in the process with the air in the clean system of pumping；2nd, electric expansion valve is added
The deterministic process whether resetted, machine electric expansion valve will not reset again after having resetted in guarantee, effectively reduce interior machine
Electric expansion valve repeats the frequency resetted, avoids more than 600 times to be powered every time to the needle of interior machine electric expansion valve and nozzle
It squeezes, the failure rate of machine electric expansion valve, extends its service life in reduction；3rd, when indoor unit is run and interior machine electric expansion valve
It during unlatching, is marked as not resetting, in this way, when being re-energised again after power-off suddenly, interior machine electric expansion valve will not be missed multiple
Position process；When the 4th, resetting for the first time, after being closed with maximum opening plus 100 steps, the setting that 80 steps turn off 80 steps is opened, it can be effective
The stress that machine electric expansion valve accumulates after the extruding of 600 steps in release, further avoids failure, extends its service life；5、
Interior machine electric expansion valve normally open after, it is necessary to when resetting, within machine electric expansion valve currently run the step number that aperture adds 100 steps
It resets, is so both avoided that and resets the excessive damage caused by valve body of step number, the use of machine electric expansion valve in further extension
Service life, and can ensure that valve body completely closes.
Specific embodiment
The reset control method of the interior machine electric expansion valve of multi-connected machine of the present invention, is as follows.
A, it is powered to indoor unit, and judges whether the indoor unit is running the test pattern before dispatching from the factory, if it is, by
Machine electric expansion valve adds the step number of 100 steps to close with maximum opening, and such as maximum opening of interior machine electric expansion valve is 500 steps, then
Closed with 600 steps, then with maximum opening add 100 steps and divided by 2 step number such as 300 steps step number opening, and by the interior machine
Then electric expansion valve powers off indoor unit labeled as not resetting, enter back into next step；If it is not, then explanation is normal mode
Under energization, be directly entered in next step.
B, whether machine electric expansion valve has resetted in judging, if it is, being directly entered in next step, if it is not, then will
Interior machine electric expansion valve adds the step number of 100 steps to close with maximum opening, is closed if maximum opening is 500 step with 600 steps, then
80 steps are opened, finally close 80 steps, and by the interior machine electric expansion valve labeled as having resetted, are entered back into next step.
C, indoor unit is standby.
D, after multi-connected machine unit receives power-on instruction, determine whether to open interior machine electric expansion valve.
If it is not, then running multi-connected machine unit according to power-on instruction, multi-connected machine unit, interior machine are closed after being connected to shutdown command
Electric expansion valve is failure to actuate always during the start of multi-connected machine unit is shut down again；And interior machine electric expansion valve is labeled as always
It has resetted.
If it is, in opening machine electric expansion valve and by open interior machine electric expansion valve labeled as not resetting, then root
Multi-connected machine unit is run according to power-on instruction, after being connected to shutdown command, interior machine electric expansion valve adds 100 steps currently to run aperture
Step number is closed, and is closed if the interior machine electric expansion valve currently 200 steps of operation with 300 steps, and the interior electromechanical son after closing is swollen
Swollen valve is labeled as having resetted.
Above-mentioned carries out interior machine electric expansion valve aperture regulation, it is marked and judges whether to reset, is determined whether
The processes such as test pattern are realized by the control panel of indoor unit.
Claims (1)
1. a kind of reset control method of the interior machine electric expansion valve of multi-connected machine, it is characterised in that：It is as follows：
A, it is powered to indoor unit, and whether judges the indoor unit in testing results pattern, if it is, by interior machine electric expansion valve
Closed with the step number of maximum opening plus 100 steps, then with maximum opening add 100 steps and divided by 2 step number open, and by the interior machine
Then electric expansion valve powers off indoor unit labeled as not resetting；If it is not, then into next step；
B, whether machine electric expansion valve has resetted in judging, if it is, being directly entered in next step, if it is not, then by interior machine
Electric expansion valve adds the step number of 100 steps to close with maximum opening, then opens 80 steps, finally closes 80 steps, and this is interior electromechanical sub
Expansion valve enters back into next step labeled as having resetted；
C, indoor unit is standby；
D, after multi-connected machine unit receives power-on instruction, determine whether to open interior machine electric expansion valve,
If it is not, then running multi-connected machine unit according to power-on instruction, multi-connected machine unit, interior electromechanical son are closed after being connected to shutdown command
Expansion valve is failure to actuate always during the start of multi-connected machine unit is shut down again, and interior machine electric expansion valve is labeled as having answered always
Position；
If it is, in opening machine electric expansion valve and by open interior machine electric expansion valve labeled as not resetting, further according to opening
Machine instruction operation multi-connected machine unit, after being connected to shutdown command, interior machine electric expansion valve is currently to run the step number that aperture adds 100 steps
It closes, and the interior machine electric expansion valve after closing is labeled as having resetted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510979800.7A CN105485868B (en) | 2015-12-23 | 2015-12-23 | The reset control method of the interior machine electric expansion valve of multi-connected machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510979800.7A CN105485868B (en) | 2015-12-23 | 2015-12-23 | The reset control method of the interior machine electric expansion valve of multi-connected machine |
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| Publication Number | Publication Date |
|---|---|
| CN105485868A CN105485868A (en) | 2016-04-13 |
| CN105485868B true CN105485868B (en) | 2018-05-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110094841A (en) * | 2019-04-15 | 2019-08-06 | 青岛海尔空调电子有限公司 | Control method for electronic expansion valve and air-conditioning for air-conditioning |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123413B (en) * | 2016-06-17 | 2018-08-14 | 广东美的制冷设备有限公司 | Prevent the method and device that electric expansion valve is stuck |
| CN110578983A (en) * | 2019-09-04 | 2019-12-17 | 青岛海信日立空调***有限公司 | Control method and control device of air conditioner and air conditioner |
| CN113357746B (en) * | 2021-05-18 | 2022-11-18 | 青岛海尔空调器有限总公司 | Electronic expansion valve abnormity detection control method and device, air conditioner and storage medium |
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| CN105485868A (en) | 2016-04-13 |
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