CN104566776A - Control method and control device for water-cooling type air conditioning unit and water-cooling type air conditioning unit - Google Patents
Control method and control device for water-cooling type air conditioning unit and water-cooling type air conditioning unit Download PDFInfo
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- CN104566776A CN104566776A CN201310518560.1A CN201310518560A CN104566776A CN 104566776 A CN104566776 A CN 104566776A CN 201310518560 A CN201310518560 A CN 201310518560A CN 104566776 A CN104566776 A CN 104566776A
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- conditioner set
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- 238000001816 cooling Methods 0.000 title claims abstract description 134
- 238000000034 method Methods 0.000 title claims abstract description 67
- 238000004378 air conditioning Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 460
- 238000012545 processing Methods 0.000 claims description 29
- 238000001514 detection method Methods 0.000 claims description 11
- 239000000498 cooling water Substances 0.000 claims description 6
- 230000007812 deficiency Effects 0.000 description 7
- 239000006200 vaporizer Substances 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000000523 sample Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
-
- 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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/20—Feedback from users
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Atmospheric Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method and a control device of a water-cooled air conditioning unit, which are used for detecting the state of a water flow switch for multiple times to determine whether the water flow switch fails or not after receiving a starting instruction, and simultaneously judging whether a water pump is started or not, thereby determining whether the water flow in a system reaches a preset flow or not, starting the air conditioning unit only when the water flow in the system reaches the preset flow, and avoiding the damage to the air conditioning unit caused by the low water flow. The invention also discloses a water-cooling type air conditioning unit comprising the control device.
Description
Technical field
The invention belongs to air conditioner controlling technology field, particularly relate to the control method of water-cooling type air-conditioner set, control device and water-cooling type air-conditioner set.
Background technology
Water-cooling type air-conditioner set mainly comprises following several: the condenser side of air-conditioner set adopts water-cooling structure; The vaporizer side of air-conditioner set adopts water-cooling structure; Condenser side and the vaporizer side of air-conditioner set all adopt water-cooling structure.
In water-cooling type air-conditioner set running, when the flow of the chilled water of vaporizer side is on the low side, the underload of evaporimeter can be caused, evaporating temperature is on the low side, the refrigerating capacity of air-conditioner set reduces, and when evaporating temperature is lower than certain value, even there will be the phenomenon that shell freezes.When the flow of the cooling water of condenser side is on the low side, condenser radiating efficiency is on the low side, causes system condensing temperature to rise; refrigerating capacity declines, and operational efficiency is on the low side, when the flow wretched insufficiency of the cooling water of condenser side; complete machine there will be abnormal protection, finally causes unit to damage.
In order to avoid there are the problems referred to above, if the condenser side of water-cooling type air-conditioner set adopts water-cooling structure, then in the water side of the cooling water of condenser, water flow switch is installed, if the vaporizer side of air-conditioner set adopts water-cooling structure, then in the water side of the chilled water of evaporimeter, water flow switch is installed.Water flow switch is the device to the automatic control and protection of discharge.When discharge reaches predetermined value, water flow switch closes, and when discharge does not reach predetermined value, water flow switch disconnects.Water flow switch closed and disconnected mentioned here is all be described with pipeline effect, and water flow switch closes and refers to that the pipeline at water flow switch place forms path, and water flow switch disconnects and refers to that the pipeline at water flow switch place is disconnected.
At present, in the process starting water-cooling type air-conditioner set, after sending water pump open command, detect the state of water flow switch, if water flow switch is in closure state, then open air-conditioner set, if water flow switch is in off-state, then do not open air-conditioner set.But, there is drawback in the control mode now for water-cooling type air-conditioner set: breaks down at water flow switch, or time after water flow switch breaks down by short circuit, water flow switch effect was lost efficacy, if still only carry out the control of air-conditioner set according to the state of water flow switch, open the problem of air-conditioner set when appearing in discharge deficiency, thus cause unit abnormal, damage air-conditioner set.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of control method of water-cooling type air-conditioner set, control device and water-cooling type air-conditioner set, avoid opening air-conditioner set when system water underfed, thus avoid occurring because the system water underfed problem that causes air-conditioner set to damage.
For achieving the above object, the invention provides following technical scheme:
The invention discloses a kind of control method of water-cooling type air-conditioner set, described water-cooling type air-conditioner set and water pump chain, described control method comprises:
After receiving start-up command, determine the state of water flow switch;
When determining that described water flow switch is in closure state, do not open described water-cooling type air-conditioner set;
When determining that described water flow switch is in off-state, perform following steps:
Send open command to described water pump;
After Preset Time, determine the state of described water flow switch after described water pump is opened;
When the state of described water flow switch after described water pump is opened is closure state, open described water-cooling type air-conditioner set.
Preferably, in above-mentioned control method, after determining the state of described water flow switch after described water pump is opened, also comprise: when the state of described water flow switch after described water pump is opened is off state, then do not open described water-cooling type air-conditioner set.
Preferably, in above-mentioned control method, determine the state of water flow switch, comprising: the status information gathering water flow switch within the very first time according to prefixed time interval; Determine the quantity of the first status information comprised in the status information collected; When the quantity of described first status information reaches first threshold, determine that described water flow switch is in closure state; When the quantity of described first status information does not reach first threshold, determine that described water flow switch is in off-state; Described first status information characterizes described water flow switch and is in closure state.
Accordingly, the present invention discloses a kind of control device of water-cooling type air-conditioner set, described water-cooling type air-conditioner set and water pump chain, described control device comprises:
On off state determining unit, for after receiving start-up command, determines the state of water flow switch;
First control unit, for when determining that described water flow switch is in closure state, controlling described water-cooling type air-conditioner set and not opening;
First processing unit, for when determining that described water flow switch is in off-state, sends open command to described water pump, after Preset Time, determines the state of described water flow switch after described water pump is opened;
Second control unit, for when the state of described water flow switch after described water pump is opened is closure state, controls described water-cooling type air-conditioner set and opens.
Preferably, above-mentioned control device also comprises the 3rd control unit, and described 3rd control unit, when the state of described water flow switch after described water pump is opened is off state, controls described water-cooling type air-conditioner set and do not open.
The present invention also discloses the control method of another kind of water-cooling type air-conditioner set, and described water-cooling type air-conditioner set is not chain with water pump, and described control method comprises:
After receiving start-up command, determine the state of water flow switch;
When determining that described water flow switch is in off-state, do not open described water-cooling type air-conditioner set;
When determining that described water flow switch is in closure state, perform following steps:
Determine the state of described water pump;
When described water pump is in the state of unlatching, waits for Preset Time, determine the state of described water flow switch when described water pump is in opening;
When the state of described water flow switch when described water pump is in opening is closure state, open described water-cooling type air-conditioner set.
Preferably, in above-mentioned control method, after the state determining described water pump, also comprise: when the state of described water pump is closed condition, do not open described water-cooling type air-conditioner set.
Preferably, in above-mentioned control method, when determining that described water flow switch is in off-state, also comprise: the state determining described water pump; When described water pump is in opening, determine that described water flow switch breaks down; When described water pump is in closed condition, determine that described water pump breaks down or water pump is not opened.
Accordingly, the present invention discloses the control device of another kind of water-cooling type air-conditioner set, and described water-cooling type air-conditioner set is not chain with water pump, and described control device comprises:
On off state determining unit, for after receiving start-up command, determines the state of water flow switch;
4th control unit, for when determining that described water flow switch is in off-state, controlling described water-cooling type air-conditioner set and not opening;
Second processing unit, for when determining that described water flow switch is in closure state, determines the state of described water pump;
3rd processing unit, for when described second processing unit determines that described water pump is in opening, waits for Preset Time, determines the state of described water flow switch when described water pump is in opening;
5th control unit, for when the state of described water flow switch when described water pump is in opening is closure state, controls described water-cooling type air-conditioner set and opens.
Preferably, above-mentioned control device also comprises the 6th control unit, and described 6th control unit is used for when the second processing unit determines that described water pump is in closed condition, controls described water-cooling type air-conditioner set and does not open.
Preferably, above-mentioned control device also comprises fault detection unit, when described on off state determining unit determines that described water flow switch is in off-state, described fault detection unit determines the state of described water pump, when described water pump is in opening, determine that described water flow switch breaks down, when described water pump is in closed condition, determine that described water pump breaks down or water pump is not opened.
The present invention also discloses the control method of another kind of water-cooling type air-conditioner set, comprising:
After receiving start-up command, determine the state of water flow switch;
When determining that described water flow switch is in closure state, do not open described water-cooling type air-conditioner set;
When determining that described water flow switch is in off-state, waiting for Preset Time, again determining the state of described water flow switch;
When determining that the current state of described water flow switch is closure state, open described water-cooling type air-conditioner set.
Preferably, in above-mentioned control method, after again determining the state of described water flow switch, also comprise: when determining that the current state of described water flow switch is off state, do not open described water-cooling type air-conditioner set.
Accordingly, the present invention discloses a kind of control device of water-cooling type air-conditioner set, comprising:
Water flow switch status determining unit, for after receiving start-up command, determines the state of water flow switch;
7th control unit, for when determining that described water flow switch is in closure state, controlling described water-cooling type air-conditioner set and not opening;
Fourth processing unit, for when determining that described water flow switch is in off-state, waiting for Preset Time, again determining the state of described water flow switch;
8th control unit, during for determining that in described fourth processing unit the current state of described water flow switch is closure state, controlling described water-cooling type air-conditioner set and opening.
The invention also discloses a kind of water-cooling type air-conditioner set, the water side of cooling water of the condenser of described water-cooling type air-conditioner set and/or the water side of the chilled water of evaporimeter arrange water flow switch, and described water-cooling type air-conditioner set also comprises any one control device above-mentioned.
As can be seen here, beneficial effect of the present invention is: the control method of water-cooling type air-conditioner set disclosed by the invention and control device, after receiving start-up command, the state of repeated detection water flow switch determines whether water flow switch does not break down, judge whether water pump is opened, thus whether the discharge in certainty annuity reaches preset flow, only when intrasystem discharge reaches preset flow simultaneously, just open air-conditioner set, avoid the infringement that discharge meeting on the low side causes air-conditioner set.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the flow chart of the control method of a kind of water-cooling type air-conditioner set disclosed by the invention;
Fig. 2 is the structural representation of the control device of a kind of water-cooling type air-conditioner set disclosed by the invention;
Fig. 3 is the flow chart of the control method of another kind of water-cooling type air-conditioner set disclosed by the invention;
Fig. 4 is the flow chart of the control method of another kind of water-cooling type air-conditioner set disclosed by the invention;
Fig. 5 is the structural representation of the control device of another kind of water-cooling type air-conditioner set disclosed by the invention;
Fig. 6 is the flow chart of the control method of another kind of water-cooling type air-conditioner set disclosed by the invention;
Fig. 7 is the structural representation of the control device of another kind of water-cooling type air-conditioner set disclosed by the invention.
Detailed description of the invention
The control method of the open water-cooling type air-conditioner set of the present invention, control device and water-cooling type air-conditioner set, can avoid opening air-conditioner set when system water underfed, thus avoid occurring because the system water underfed problem that causes air-conditioner set to damage.
It should be noted that, the water-cooling type air-conditioner set in the present invention can be the water-cooling type air-conditioner set of any one structure.Such as: the condenser side of air-conditioner set adopts water-cooling structure, the vaporizer side of air-conditioner set adopts water-cooling structure, or the condenser side of air-conditioner set and vaporizer side all adopt water-cooling structure.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
It is the flow chart of the control method of a kind of water-cooling type air-conditioner set disclosed by the invention see Fig. 1, Fig. 1.Wherein, water-cooling type air-conditioner set and water pump chain, namely the control device of water-cooling type air-conditioner set is connected with the control circuit of water pump, can control the start and stop of water pump.This control method comprises:
Step S11: after receiving start-up command, determines the state of water flow switch.When determining that water flow switch is in closure state, performing step S12, when determining that water flow switch is in off-state, performing step S13.
User can export start-up command by control panel or remote controller, and after the control device of water-cooling type air-conditioner set receives start-up command, determine the state of water flow switch, the state of water flow switch comprises closure state and off-state.It should be noted that, the closed and disconnected of said water flow switch in the present invention, is all be described with pipeline effect, and water flow switch closes and refers to that the pipeline at water flow switch place forms path, and water flow switch disconnects and refers to that the pipeline at water flow switch place is disconnected.
Step S12: not open water cold mould air-conditioner set.
After the shutdown of water-cooling type air-conditioner set, the water pump chain with air-conditioner set is also in closed condition, and the discharge now in system is very low, and close to 0, water flow switch can not close.Therefore, when determining that water flow switch is in closure state, just can determine that water flow switch breaks down, and does not open air-conditioner set.
Step S13: send open command to water pump.
Step S14: after Preset Time, determines the state of water flow switch after water pump is opened.
Step S15: when the state of water flow switch after water pump is opened is closure state, open water cold mould air-conditioner set.
When determining that water flow switch is in off-state, also cannot determine water flow switch fault-free completely, now the control device of air-conditioner set sends open command to water pump, to open water pump.After wait Preset Time, again determine the state of water flow switch, if water flow switch closes, illustrate that water flow switch does not break down, and the discharge in current system reaches preset flow, can ensure that air-conditioner set normal table runs, therefore open air-conditioner set.
Owing to receiving open command from water pump, bring into operation to water pump, then pump water in the pipeline of air-conditioner set to water pump, need a period of time, therefore, after transmission open command to water pump, Preset Time be waited for, again could determine the state of water flow switch.This Preset Time is relevant with the operational factor (as start-up time, flow and lift) of water pump itself, can not be less than water pump from receiving open command to the time pumping water to pipeline.
The control method of water-cooling type air-conditioner set disclosed in Fig. 1 of the present invention, after receiving start-up command, first the state of water flow switch is determined, when water flow switch is current be in closure state time, determine that water flow switch breaks down, no longer open air-conditioner set, when water flow switch is current be in off-state time, open water pump, and after opening water pump, again determine the state of water flow switch, when water flow switch closes, illustrate that water flow switch does not break down and discharge in current system reaches preset flow, now open air-conditioner set.Based on control method disclosed in Fig. 1 of the present invention, only in water flow switch fault-free and intrasystem discharge reaches preset flow time, just open air-conditioner set, open the problem of air-conditioner set under avoiding the state occurring discharge deficiency, thus avoid occurring because the system water underfed problem that causes air-conditioner set to damage.
Preferably, performing after step S14 determines the state of water flow switch after water pump is opened, further comprising the steps of: when the state of water flow switch after water pump is opened is off state, then not open water cold mould air-conditioner set.After unlatching water pump, if water flow switch is still in off-state, illustrate that water flow switch breaks down, can not air-conditioner set be opened.
When the state of water flow switch is different, water flow switch can export different status informations.Such as: when water flow switch disconnects, output low level signal; When water flow switch closes, export high level signal.
In the present invention, the status information exported when water flow switch being in closure state is defined as the first status information, and the status information exported when water flow switch being in off-state is defined as the second status information.Namely, the first status information characterizes water flow switch and is in closure state, and the second status information characterizes water flow switch and is in off-state.
In enforcement, can by the state of various ways determination water flow switch.
Such as: the status information gathering water flow switch, when the status information of water flow switch is the first status information, determine that water flow switch is in closure state, when the status information of water flow switch is the second status information, determine that water flow switch is in off-state.
And for example: the status information gathering water flow switch within the very first time according to prefixed time interval; Determine the quantity of the first status information comprised in the status information collected; When the quantity of the first status information reaches first threshold, determine that water flow switch is in closure state; When the quantity of the first status information does not reach first threshold, determine that water flow switch is in off-state.
Accordingly, the present invention discloses a kind of control device of water-cooling type air-conditioner set, to realize the control method shown in Fig. 1.Wherein, water-cooling type air-conditioner set and water pump chain, namely the control device of water-cooling type air-conditioner set is connected with the control circuit of water pump, can control the start and stop of water pump.
It is the structural representation of the control device of a kind of water-cooling type air-conditioner set disclosed by the invention see Fig. 2, Fig. 2.This control device comprises on off state determining unit 10, first control unit 20, first processing unit 30 and the second control unit 40.
Wherein:
On off state determining unit 10, for after receiving start-up command, determines the state of water flow switch.
First control unit 20, for when determining that water flow switch is in closure state, controlling water-cooling type air-conditioner set and not opening.
First processing unit 30, for when determining that water flow switch is in off-state, sends open command to water pump, after Preset Time, determines the state of water flow switch after water pump is opened.
Second control unit 40, for when the state of water flow switch after water pump is opened is closure state, controls water-cooling type air-conditioner set and opens.
The control device of water-cooling type air-conditioner set disclosed in Fig. 2 of the present invention, after receiving start-up command, first the state of water flow switch is determined, when water flow switch is current be in closure state time, determine that water flow switch breaks down, no longer open air-conditioner set, when water flow switch is current be in off-state time, open water pump, and after opening water pump, again determine the state of water flow switch, when water flow switch closes, illustrate that water flow switch does not break down and discharge in current system reaches preset flow, now open air-conditioner set.Based on control device disclosed in Fig. 2 of the present invention, only in water flow switch fault-free and intrasystem discharge reaches preset flow time, just open air-conditioner set, open the problem of air-conditioner set under avoiding the state occurring discharge deficiency, thus avoid occurring because the system water underfed problem that causes air-conditioner set to damage.
Preferably, in the control device shown in Fig. 2, can arrange the 3rd control unit further, the 3rd control unit is connected with the first processing unit 30, when the state of water flow switch after water pump is opened is off state, the 3rd control unit controls water-cooling type air-conditioner set and does not open.
In addition, on off state determining unit 10 determines the process of the state of water flow switch as mentioned before, does not repeat them here.
The invention also discloses the control method of another water-cooling type air-conditioner set.
It is the flow chart of the control method of another kind of water-cooling type air-conditioner set disclosed by the invention see Fig. 3, Fig. 3.Wherein, water-cooling type air-conditioner set is not chain with water pump, namely needs user's start and stop water pump voluntarily.This control method comprises:
Step S21: after receiving start-up command, determines the state of water flow switch.When determining that water flow switch is in off-state, performing step S22, when determining that water flow switch is in closure state, performing step S23.
Step S22: not open water cold mould air-conditioner set.
When water flow switch is in off-state, discharge in system does not reach preset flow certainly, and this may be that water flow switch breaks down and causes, and is also likely that water pump is not opened, no matter is which kind of problem causes, all can not opens air-conditioner set.
Step S23: the state determining water pump.
In enforcement, can arrange speed probe in water pump, the output of this speed probe is connected to the control device of air-conditioner set, control device just can determine the state of water pump by the tach signal that speed probe transmits.Concrete: when the rotating speed of water pump be 0 or very little numerical value time, determine that water pump is in closed condition, when the rotating speed of water pump exceedes a certain default value (as 100 turns), determine that water pump is in opening.In enforcement, can also adopt the state of other mode determination water pumps, the present invention introduces no longer one by one.
Step S24: when water pump is in the state of unlatching, waits for Preset Time, determines the state of water flow switch when water pump is in opening.
Step S25: when the state of water flow switch when water pump is in opening is closure state, open water cold mould air-conditioner set.
The start and stop of water pump are that user controls voluntarily, when determining that water flow switch is in closure state, control device will determine the state of water pump, if determine that water pump is in opening, discharge in illustrative system reaches preset flow, therefore opens air-conditioner set.
The control method of water-cooling type air-conditioner set disclosed in Fig. 3 of the present invention, after receiving start-up command, first the state of water flow switch is determined, when water flow switch is current be in off-state time, discharge in illustrative system is less than preset flow or water flow switch damages, therefore air-conditioner set is not opened, when water flow switch is current be in closure state time, detect the state of water pump, when determining that water pump is in opening, illustrate that the discharge in current system reaches preset flow, now open air-conditioner set.Based on control method disclosed in Fig. 2 of the present invention, only when intrasystem discharge reaches preset flow, just open air-conditioner set, under avoiding the state occurring discharge deficiency, open the problem of air-conditioner set, thus avoid occurring because the system water underfed problem that causes air-conditioner set to damage.
Preferably, after execution step S23 determines the state of water pump, can also comprise the following steps: when the state of water pump is closed condition, not open water cold mould air-conditioner set.When determining that water flow switch is in closure state, if determine that now water pump is in closed condition, then illustrate that water flow switch breaks down, and now water pump is not opened yet, and therefore can not open air-conditioner set.
In enforcement, can also improve control method shown in Fig. 3.It is the flow chart of the control method of another kind of water-cooling type air-conditioner set disclosed by the invention see Fig. 4, Fig. 4.Wherein, water-cooling type air-conditioner set is not chain with water pump.This control method comprises:
Step S31: after receiving start-up command, determines the state of water flow switch.When determining that water flow switch is in off-state, performing step S32, when determining that water flow switch is in closure state, performing step S35.
Step S32: not open water cold mould air-conditioner set.
Step S33: the state determining water pump.
Step S34: when water pump is in opening, determines that water flow switch breaks down, and when water pump is in closed condition, determines that water pump breaks down or do not open.
When determining that water flow switch is in off-state, if water pump is in opening, just can determine that water flow switch breaks down, if water pump is in closed condition, considering that user opens water pump usually, then determine that water pump breaks down, also may be that user does not open water pump certainly.
Step S35: the state determining water pump.When water pump is in the state of unlatching, perform step S36, when water pump is in closed condition, perform step S38.
Step S36: wait for Preset Time, determine the state of water flow switch when water pump is in opening.
Step S37: when the state of water flow switch when water pump is in opening is closure state, open water cold mould air-conditioner set.
Step S38: not open water cold mould air-conditioner set.
Compared with control method shown in control method with Fig. 3 shown in Fig. 4, when water flow switch is in off-state, can be clearly which kind of factor causes, foundation can be provided for user's maintenance, facilitate user to find needs to carry out the equipment keeped in repair fast.
It should be noted that, in the control method shown in Fig. 3 and Fig. 4, determine that the state of water flow switch can adopt mode mentioned above, be no longer described here.
Accordingly, the present invention discloses a kind of control device of water-cooling type air-conditioner set, to realize the control method shown in Fig. 3.Wherein, water-cooling type air-conditioner set is not chain with water pump, namely needs user's start and stop water pump voluntarily.
It is the structural representation of the control device of another kind of water-cooling type air-conditioner set disclosed by the invention see Fig. 5, Fig. 5.This control device comprises on off state determining unit 10, the 4th control unit 50, second processing unit 60, the 3rd processing unit 70 and the 5th control unit 80.
Wherein:
On off state determining unit 10, for after receiving start-up command, determines the state of water flow switch.
4th control unit 50, for when determining that water flow switch is in off-state, controlling water-cooling type air-conditioner set and not opening.
Second processing unit 60, for when determining that water flow switch is in closure state, determines the state of water pump.
3rd processing unit 70, for when the second processing unit 60 determines that water pump is in opening, waits for Preset Time, determines the state of water flow switch when water pump is in opening.
5th control unit 80, for when the state of water flow switch when water pump is in opening is closure state, controls water-cooling type air-conditioner set and opens.
The control device of water-cooling type air-conditioner set disclosed in Fig. 5 of the present invention, after receiving start-up command, first the state of water flow switch is determined, when water flow switch is current be in off-state time, discharge in illustrative system is less than preset flow or water flow switch damages, therefore air-conditioner set is not opened, when water flow switch is current be in closure state time, detect the state of water pump, when determining that water pump is in opening, illustrate that the discharge in current system reaches preset flow, now open air-conditioner set.Based on control device disclosed in Fig. 5 of the present invention, only when intrasystem discharge reaches preset flow, just open air-conditioner set, under avoiding the state occurring discharge deficiency, open the problem of air-conditioner set, thus avoid occurring because the system water underfed problem that causes air-conditioner set to damage.
Preferably, in control device shown in Fig. 5, can arrange the 6th control unit further, the 6th control unit is connected with the second processing unit 60, when the second processing unit 60 determines that water pump is in closed condition, the 6th control unit controls water-cooling type air-conditioner set and does not open.
In addition, in control device shown in Fig. 5, fault detection unit can be set further, this fault detection unit is connected with on off state determining unit 10, when on off state determining unit 10 determines that water flow switch is in off-state, fault detection unit performs following operation: the state determining described water pump; When described water pump is in opening, determine that described water flow switch breaks down; When described water pump is in closed condition, determine that described water pump breaks down or water pump is not opened.
By arranging fault detection unit in control device, when water flow switch is in off-state, can be clearly which kind of factor causes, foundation can be provided for user's maintenance, facilitate user to find needs to carry out the equipment keeped in repair fast.
It should be noted that, control device shown in Fig. 5, the 6th control unit and fault detection unit can be set simultaneously.
The invention also discloses the control method of another water-cooling type air-conditioner set.
It is the flow chart of the control method of another kind of water-cooling type air-conditioner set disclosed by the invention see Fig. 6, Fig. 6.This control method comprises:
Step S41: after receiving start-up command, determines the state of water flow switch.When determining that water flow switch is in closure state, performing step S42, when determining that water flow switch is in off-state, performing step S43.
Determine the state of water flow switch, previously described mode can be adopted, refer to and describe above, repeat no more here.
Step S42: not open water cold mould air-conditioner set.
After the shutdown of water-cooling type air-conditioner set, the water pump chain with air-conditioner set is also in closed condition, and the discharge now in system is very low, and close to 0, water flow switch can not close.Therefore, when determining that water flow switch is in closure state, just can determine that water flow switch breaks down, and does not open air-conditioner set.
Step S43: wait for Preset Time, again determine the state of described water flow switch.
Step S44: when determining that the current state of water flow switch is closure state, open water cold mould air-conditioner set.
If water flow switch does not break down, and water pump pumps water in the pipeline of air-conditioner set in Preset Time, then water flow switch will switch to closure state.Therefore, by again detecting the state of water flow switch, just can judge whether to open air-conditioner set.
Control method disclosed in Fig. 6 of the present invention, without the need to considering that whether water pump is chain, after receiving start-up command, first the state of water flow switch is determined, when water flow switch is current be in closure state time, determine that water flow switch breaks down, no longer open air-conditioner set, when water flow switch is current be in off-state time, wait for Preset Time, if the state transfer of water flow switch is closed afterwards, illustrate that water pump has been opened and water flow switch does not break down, intrasystem discharge reaches preset flow, now opens air-conditioner set.Based on control method disclosed in Fig. 6 of the present invention, only in water flow switch fault-free and intrasystem discharge reaches preset flow time, just open air-conditioner set, avoid occurring that water flow switch is opened the problem of air-conditioner set under the state of short circuit or discharge deficiency, thus avoid occurring because system water underfed causes the problem that air-conditioner set is abnormal and damage.
Preferably, after the state again determining described water flow switch, also comprise: when determining that the current state of water flow switch is off state, not open water cold mould air-conditioner set.After wait Preset Time, if water flow switch is still in off-state, may be because water pump is not opened on the one hand, may be that water flow switch breaks down on the other hand, no matter be which kind of factor causes, all can not opens air-conditioning system.
Accordingly, the present invention discloses a kind of control device of water-cooling type air-conditioner set, to realize the control method shown in Fig. 6.
It is the structural representation of the control device of another kind of water-cooling type air-conditioner set disclosed by the invention see Fig. 7, Fig. 7.This control device comprises on off state determining unit 10, the 7th control unit 90, fourth processing unit 100 and the 8th control unit 110.
Wherein:
Water flow switch status determining unit 10, for after receiving start-up command, determines the state of water flow switch.
7th control unit 90, for when determining that water flow switch is in closure state, controlling water-cooling type air-conditioner set and not opening.
Fourth processing unit 100, for when determining that water flow switch is in off-state, waiting for Preset Time, again determining the state of water flow switch.
8th control unit 110, during for determining that in fourth processing unit 100 the current state of water flow switch is closure state, controlling water-cooling type air-conditioner set and opening.
Control device disclosed in Fig. 7 of the present invention, without the need to considering that whether water pump is chain, after receiving start-up command, first the state of water flow switch is determined, when water flow switch is current be in closure state time, determine that water flow switch breaks down, no longer open air-conditioner set, when water flow switch is current be in off-state time, wait for Preset Time, if the state transfer of water flow switch is closed afterwards, illustrate that water pump has been opened and water flow switch does not break down, intrasystem discharge reaches preset flow, now opens air-conditioner set.Based on control device disclosed in Fig. 7 of the present invention, only in water flow switch fault-free and intrasystem discharge reaches preset flow time, just open air-conditioner set, avoid occurring that water flow switch is opened the problem of air-conditioner set under the state of short circuit or discharge deficiency, thus avoid occurring because system water underfed causes the problem that air-conditioner set is abnormal and damage.
Preferably, in control device shown in Fig. 7, can arrange the 9th control unit further, the 9th control unit is connected with fourth processing unit 100, during for determining that in fourth processing unit 100 the current state of water flow switch is off state, controlling water-cooling type air-conditioner set and not opening.After wait Preset Time, if water flow switch is still in off-state, may be because water pump is not opened on the one hand, may be that water flow switch breaks down on the other hand, no matter be which kind of factor causes, all can not opens air-conditioning system.
The control method of above-mentioned each water-cooling type air-conditioner set disclosed of the present invention and control device, based on principle of uniformity: after receiving start-up command, the state of repeated detection water flow switch determines whether water flow switch does not break down, judge whether water pump is opened simultaneously, thus whether the discharge in certainty annuity reaches preset flow, only when intrasystem discharge reaches preset flow, just open air-conditioner set, avoid the infringement that discharge meeting on the low side causes air-conditioner set.
The invention also discloses a kind of water-cooling type air-conditioner set, the water side of the water side of the cooling water of the condenser of this water-cooling type air-conditioner set and/or the chilled water of evaporimeter arranges water flow switch, and this water-cooling type air-conditioner set also comprises any one control device disclosed by the invention.Water-cooling type air-conditioner set disclosed by the invention only when intrasystem discharge reaches preset flow, just opens air-conditioner set, avoids the infringement that discharge meeting on the low side causes air-conditioner set.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this description, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.For device disclosed in embodiment, because it corresponds to the method disclosed in Example, so description is fairly simple, relevant part illustrates see method part.
Professional can also recognize further, in conjunction with unit and the algorithm steps of each example of embodiment disclosed herein description, can realize with electronic hardware, computer software or the combination of the two, in order to the interchangeability of hardware and software is clearly described, generally describe composition and the step of each example in the above description according to function.These functions perform with hardware or software mode actually, depend on application-specific and the design constraint of technical scheme.Professional and technical personnel can use distinct methods to realize described function to each specifically should being used for, but this realization should not thought and exceeds scope of the present invention.
The software module that the method described in conjunction with embodiment disclosed herein or the step of algorithm can directly use hardware, processor to perform, or the combination of the two is implemented.Software module can be placed in the storage medium of other form any known in random access memory (RAM), internal memory, read-only storage (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (15)
1. a control method for water-cooling type air-conditioner set, described water-cooling type air-conditioner set and water pump chain, it is characterized in that, described control method comprises:
After receiving start-up command, determine the state of water flow switch;
When determining that described water flow switch is in closure state, do not open described water-cooling type air-conditioner set;
When determining that described water flow switch is in off-state, perform following steps:
Send open command to described water pump;
After Preset Time, determine the state of described water flow switch after described water pump is opened;
When the state of described water flow switch after described water pump is opened is closure state, open described water-cooling type air-conditioner set.
2. control method according to claim 1, is characterized in that, after determining the state of described water flow switch after described water pump is opened, also comprises:
When the state of described water flow switch after described water pump is opened is off state, then do not open described water-cooling type air-conditioner set.
3. control method according to claim 1 and 2, is characterized in that, determines the state of water flow switch, comprising:
Gather the status information of water flow switch according to prefixed time interval within the very first time;
Determine the quantity of the first status information comprised in the status information collected;
When the quantity of described first status information reaches first threshold, determine that described water flow switch is in closure state;
When the quantity of described first status information does not reach first threshold, determine that described water flow switch is in off-state;
Described first status information characterizes described water flow switch and is in closure state.
4. a control device for water-cooling type air-conditioner set, described water-cooling type air-conditioner set and water pump chain, it is characterized in that, described control device comprises:
On off state determining unit, for after receiving start-up command, determines the state of water flow switch;
First control unit, for when determining that described water flow switch is in closure state, controlling described water-cooling type air-conditioner set and not opening;
First processing unit, for when determining that described water flow switch is in off-state, sends open command to described water pump, after Preset Time, determines the state of described water flow switch after described water pump is opened;
Second control unit, for when the state of described water flow switch after described water pump is opened is closure state, controls described water-cooling type air-conditioner set and opens.
5. control device according to claim 4, is characterized in that, also comprises the 3rd control unit;
Described 3rd control unit, when the state of described water flow switch after described water pump is opened is off state, controls described water-cooling type air-conditioner set and does not open.
6. a control method for water-cooling type air-conditioner set, described water-cooling type air-conditioner set is not chain with water pump, it is characterized in that, described control method comprises:
After receiving start-up command, determine the state of water flow switch;
When determining that described water flow switch is in off-state, do not open described water-cooling type air-conditioner set;
When determining that described water flow switch is in closure state, perform following steps:
Determine the state of described water pump;
When described water pump is in the state of unlatching, waits for Preset Time, determine the state of described water flow switch when described water pump is in opening;
When the state of described water flow switch when described water pump is in opening is closure state, open described water-cooling type air-conditioner set.
7. control method according to claim 6, is characterized in that, after the state determining described water pump, also comprises:
When the state of described water pump is closed condition, do not open described water-cooling type air-conditioner set.
8. the control method according to claim 6 or 7, is characterized in that, when determining that described water flow switch is in off-state, also comprises:
Determine the state of described water pump;
When described water pump is in opening, determine that described water flow switch breaks down;
When described water pump is in closed condition, determine that described water pump breaks down or water pump is not opened.
9. a control device for water-cooling type air-conditioner set, described water-cooling type air-conditioner set is not chain with water pump, it is characterized in that, described control device comprises:
On off state determining unit, for after receiving start-up command, determines the state of water flow switch;
4th control unit, for when determining that described water flow switch is in off-state, controlling described water-cooling type air-conditioner set and not opening;
Second processing unit, for when determining that described water flow switch is in closure state, determines the state of described water pump;
3rd processing unit, for when described second processing unit determines that described water pump is in opening, waits for Preset Time, determines the state of described water flow switch when described water pump is in opening;
5th control unit, for when the state of described water flow switch when described water pump is in opening is closure state, controls described water-cooling type air-conditioner set and opens.
10. control device according to claim 9, is characterized in that, also comprises the 6th control unit;
Described 6th control unit is used for when the second processing unit determines that described water pump is in closed condition, controls described water-cooling type air-conditioner set and does not open.
11. control device according to claim 9 or 10, is characterized in that, also comprise fault detection unit;
When described on off state determining unit determines that described water flow switch is in off-state, described fault detection unit determines the state of described water pump, when described water pump is in opening, determine that described water flow switch breaks down, when described water pump is in closed condition, determine that described water pump breaks down or water pump is not opened.
The control method of 12. 1 kinds of water-cooling type air-conditioner set, is characterized in that, comprising:
After receiving start-up command, determine the state of water flow switch;
When determining that described water flow switch is in closure state, do not open described water-cooling type air-conditioner set;
When determining that described water flow switch is in off-state, waiting for Preset Time, again determining the state of described water flow switch;
When determining that the current state of described water flow switch is closure state, open described water-cooling type air-conditioner set.
13. control methods according to claim 12, is characterized in that, after again determining the state of described water flow switch, also comprise:
When determining that the current state of described water flow switch is off state, do not open described water-cooling type air-conditioner set.
The control device of 14. 1 kinds of water-cooling type air-conditioner set, is characterized in that, comprising:
Water flow switch status determining unit, for after receiving start-up command, determines the state of water flow switch;
7th control unit, for when determining that described water flow switch is in closure state, controlling described water-cooling type air-conditioner set and not opening;
Fourth processing unit, for when determining that described water flow switch is in off-state, waiting for Preset Time, again determining the state of described water flow switch;
8th control unit, during for determining that in described fourth processing unit the current state of described water flow switch is closure state, controlling described water-cooling type air-conditioner set and opening.
15. 1 kinds of water-cooling type air-conditioner set, the water side of cooling water of the condenser of described water-cooling type air-conditioner set and/or the water side of the chilled water of evaporimeter arrange water flow switch, it is characterized in that, described water-cooling type air-conditioner set also comprises the control device as described in claim 4,5,9,10,11 or 14.
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