CN110440409A - The control method and water cooler of water cooler - Google Patents
The control method and water cooler of water cooler Download PDFInfo
- Publication number
- CN110440409A CN110440409A CN201910731556.0A CN201910731556A CN110440409A CN 110440409 A CN110440409 A CN 110440409A CN 201910731556 A CN201910731556 A CN 201910731556A CN 110440409 A CN110440409 A CN 110440409A
- Authority
- CN
- China
- Prior art keywords
- water
- cooler
- water cooler
- temperature change
- change rate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/38—Failure diagnosis
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
-
- 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
-
- 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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/85—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using variable-flow pumps
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- 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
Abstract
The invention discloses a kind of control method of water cooler and water coolers, comprising steps of judging whether water temperature change rate is less than or equal to refrigeration preset value in refrigeration, or judge whether water temperature change rate is greater than or equal to heating preset value in heating, if so, close compressor.The avoidable water cooler water flow of the present invention is relatively low or even water system does not recycle the generation that just anhydrous starting is run; avoid the bursting by freezing of water cooler evaporator, compressor damage etc.; effective protection water cooler, while by judging whether water pump and water flow switch state-detection water flow switch are gradually excluded extremely.
Description
Technical field
The present invention relates to field of air conditioning more particularly to the control methods and water cooler of a kind of water cooler.
Background technique
Water flow when water cooler is run will reach design requirement value.Water cooler water flow is relatively low or even water system does not have
When having a circulation just anhydrous starting being run: refrigerating operaton will lead to that evaporator evaporating temperature is too low, and water temperature is too low, so as to cause evaporation
The bursting by freezing of device heat exchanger tube, the operation of compressor over range cause unit to damage, and heating operation will lead to that condenser condensation temperature is excessively high, water
Temperature is excessively high, so as to cause compressor loads are excessively high and compressor abrasion.On the outlet pipe of the water-side heat of usual water cooler
Be usually provided with water flow switch, if user from distribution pump when can chain water pump and water cooler as requested controller (cold water
Generator set controller can control user from distribution pump).When water cooler is run, controller passes through to water flow switch after water pump is opened
State judge whether water system recirculated water meets design requirement: judge if water flow switch is in closed state water flow meet
It is required that then continuing booting operation, judge that water flow is unsatisfactory for requiring not continuing to out if water flow switch is in an off state
Machine operation.But be likely to occur user without as requested it is chain from distribution pump and water cooler controller, water flow switch by people
Water cooler controller is caused to judge that water flow switch is constantly in closed state for short circuit, water flow switch abnormal quality etc., it is such
In the case of water cooler cannot effectively judge that water flow is insufficient or water system does not recycle the case where just anhydrous starting is run,
Easily cause above-mentioned water cooler water flow relatively low or even water system does not recycle the generation that just anhydrous starting is run, leads to unit
Damage.
Summary of the invention
Water flow cannot be effectively judged in the state of water flow switch exception in order to solve water cooler in the prior art
Defect, the invention proposes a kind of control method of water cooler and water coolers.
The invention proposes a kind of control methods of water cooler, comprising steps of judging that water temperature change rate is in refrigeration
It is no to be less than or equal to refrigeration preset value, or judge whether water temperature change rate is greater than or equal to heating preset value in heating, if
It is close compressor.
Preferably, the water temperature change rate are as follows: the inflow temperature change rate of water-side heat, leaving water temperature change rate and
Any one in antifreeze rate of temperature change.
Further, before judging water temperature change rate, judge whether water pump is successfully opened, if it is not, re-emitting water pump
Open command.If water pump is opened not successfully, judge whether water flow switch is closed, if closure, prompts water flow switch abnormal.If water pump
Success is opened, and judges whether water flow switch is closed, if so, the step of judging water temperature change rate is executed, if it is not, prompt water flow switch
Exception or water flow are abnormal.
Preferably, after close compressor, water pump open command is re-emitted.When the number of close compressor is more than default time
When number, prompt abnormal.
The present invention also proposes a kind of water cooler, uses above-mentioned control method.
Further, be provided on the pipeline of the water-side heat of water cooler monitoring inflow temperature water inlet temperature sensing package and
Monitor the water outlet temperature sensing package of leaving water temperature.
Further, the antifreeze sense for monitoring antifreeze temperature is additionally provided on the pipeline of the water-side heat of the water cooler
Thermometer bulb.
Compared with prior art, the present invention avoids water cooler water flow relatively low or even water system does not recycle just anhydrous open
The generation of dynamic operation avoids the bursting by freezing of water cooler evaporator, compressor damage etc., effective protection water cooler, while passing through and sentencing
Whether water cut-off pump and water flow switch state-detection water flow switch are gradually excluded extremely.
Detailed description of the invention
Below with reference to embodiment and attached drawing, the present invention is described in detail, in which:
Fig. 1 is flow chart of the invention.
Specific embodiment
As shown in Figure 1, in refrigeration, judging water temperature change rate the invention proposes a kind of control method of water cooler
Whether it is less than or equal to refrigeration preset value, or judges whether water temperature change rate is greater than or equal to heating preset value in heating,
If so, illustrating that the variation of water temperature within a preset time is very little, water system is likely to occur failure, and close compressor avoids cold water
Unit water flow is relatively low or even water system does not recycle the generation of just anhydrous starting operation, avoid the bursting by freezing of water cooler evaporator,
Compressor damage etc., effective protection water cooler.
In the present invention, water temperature change rate are as follows: the inflow temperature change rate of water-side heat, leaving water temperature change rate and anti-
Freeze any one in rate of temperature change, when any one exceeds corresponding preset value, then illustrates that unit water system may
It breaks down.It is provided on the water-side heat of water cooler into water temperature sensing package, water outlet temperature sensing package, antifreeze temperature sensing package, water inlet sense
The temperature of thermometer bulb detection is inflow temperature Tj, and the temperature of water outlet temperature sensing package detection is leaving water temperature Tc, antifreeze temperature sensing package detection
Temperature is antifreeze temperature Tf.T is the time of water cooler operation, and unit is minute (min), and △ t is the change of preset calculating water temperature
The period of rate, △ t=t2-t1, t2 > t1.The unit of water cooler water temperature change rate is centigrade per minute (DEG C/min),
Refrigeration preset value is the preset water temperature change rate of refrigerating operaton, and heating preset value is the preset water temperature change rate of heating operation, K1
It is leaving water temperature change rate for inflow temperature change rate, K2, K3 is antifreeze rate of temperature change K1=(Tj (t2)-Tj (t1))/△
t, K2=(Tc(t2)- Tc(t1))/△t, K3=(Tf(t2)- Tf(t1))/△t；The range of △ t is t≤10 1≤△, can
According to specific different water cooler setting, such as t=2 △ can be set.
In the present invention, refrigeration values are -30≤K (refrigeration preset value)≤- 1, can be according to specific different cold water
Unit setting, such as K K (refrigeration preset value)=- 5 can be set.The range for heating preset value is that 1≤K(heats preset value)≤
30, can be according to specific different water cooler setting, such as K(heating preset value can be set)=10.
In the present invention, rate-determining steps include: sending power-on command first, then issue water pump open command, judge water pump
Whether successfully open, if it is not, re-emitting water pump open command ensures that water pump operates normally.Wherein, if water pump is opened not successfully,
Judge whether water flow switch disconnects, if so, illustrating that water flow switch is without exception, then water pump open command is re-emitted, if it is not, then
Illustrate that water flow switch may be shorted, prompts water flow switch abnormal, prevent failure.
If water pump is successfully opened, judge whether water flow switch is closed, if so, illustrating that water flow switch is normal, execution judges water
The step of warm change rate, if it is not, prompt water flow switch exception or water flow are abnormal.
In the present invention, leads to close compressor because water temperature change rate judges, re-emit power-on command, then issue water
It pumps open command and executes subsequent step, when the number of close compressor is more than preset times, preset times be may be configured as twice,
Illustrate that failure is unrelated with water pump and water flow switch, water system is prompted gradually to be checked extremely.
The invention also provides a kind of water coolers, using above-mentioned control method, other than the Common Component of water cooler,
It specifically further include the water inlet temperature sensing package that inflow temperature is monitored on the water-side heat for be arranged in water cooler, monitoring leaving water temperature
It is discharged temperature sensing package and monitors the antifreeze temperature sensing package of antifreeze temperature, wherein water inlet temperature sensing package may be provided at the water inlet pipe of water-side heat
On, water outlet temperature sensing package may be provided on the outlet pipe of water-side heat.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of control method of water cooler, which is characterized in that comprising steps of judging whether water temperature change rate is small in refrigeration
In or be equal to refrigeration preset value, or heating when judge whether water temperature change rate is greater than or equal to heating preset value, if so, pass
Close compressor.
2. the control method of water cooler as described in claim 1, which is characterized in that the water temperature change rate are as follows: water side is changed
Any one in the inflow temperature change rate of hot device, leaving water temperature change rate and antifreeze rate of temperature change.
3. the control method of water cooler as described in claim 1, which is characterized in that before judging water temperature change rate, sentence
Whether water cut-off pump is successfully opened, if it is not, re-emitting water pump open command.
4. the control method of water cooler as claimed in claim 3, which is characterized in that if water pump is opened not successfully, judge water
Whether stream switch is closed, if closure, prompts water flow switch abnormal.
5. the control method of water cooler as claimed in claim 3, which is characterized in that if water pump is successfully opened, judge water flow
Whether switch is closed, if so, the step of judging water temperature change rate is executed, if it is not, prompt water flow switch exception or water flow are abnormal.
6. the control method of water cooler as described in claim 1, which is characterized in that after close compressor, re-emit water
Pump open command.
7. the control method of water cooler as claimed in claim 6, which is characterized in that when the number of close compressor is more than pre-
If when number, prompting abnormal.
8. a kind of water cooler, which is characterized in that use the described in any item control methods of claim 1 to 7.
9. water cooler as claimed in claim 8, which is characterized in that set on the pipeline of the water-side heat of the water cooler
It is equipped with the water inlet temperature sensing package of monitoring inflow temperature and the water outlet temperature sensing package of monitoring leaving water temperature.
10. water cooler as claimed in claim 9, which is characterized in that on the pipeline of the water-side heat of the water cooler
It is additionally provided with the antifreeze temperature sensing package for monitoring antifreeze temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910731556.0A CN110440409A (en) | 2019-08-08 | 2019-08-08 | The control method and water cooler of water cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910731556.0A CN110440409A (en) | 2019-08-08 | 2019-08-08 | The control method and water cooler of water cooler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110440409A true CN110440409A (en) | 2019-11-12 |
Family
ID=68434107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910731556.0A Pending CN110440409A (en) | 2019-08-08 | 2019-08-08 | The control method and water cooler of water cooler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110440409A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986283A (en) * | 2019-11-26 | 2020-04-10 | 珠海格力电器股份有限公司 | Water multi-connected system heating anti-freezing mode control method, computer readable storage medium and air conditioner |
| CN111006358A (en) * | 2019-12-23 | 2020-04-14 | 四川虹美智能科技有限公司 | Fault detection method based on water flow switch and outdoor unit |
| CN112665240A (en) * | 2020-12-08 | 2021-04-16 | 珠海格力电器股份有限公司 | Unit water flow switch monitoring method and device and water chilling unit |
| CN114992909A (en) * | 2021-03-02 | 2022-09-02 | 广东美的暖通设备有限公司 | Control method of heat pump system and heat pump system |
| CN115823786A (en) * | 2022-12-08 | 2023-03-21 | 珠海格力电器股份有限公司 | Unit anti-freezing control method and device and water chilling unit |
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| KR20130046806A (en) * | 2011-10-28 | 2013-05-08 | 엘지전자 주식회사 | Air conditioner and method for controlling the same |
| CN104566776A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Control method and control device for water cooling air conditioner unit and water cooling air conditioner unit |
| CN104748306A (en) * | 2015-03-24 | 2015-07-01 | 广东美的暖通设备有限公司 | Anti-freezing method and device for unit in air conditioning system |
| CN104764146A (en) * | 2015-03-23 | 2015-07-08 | 广东美的暖通设备有限公司 | Control method, device and system for achieving water-side heat exchanger freeze-proofing protection |
| CN106196520A (en) * | 2015-05-08 | 2016-12-07 | Tcl空调器(中山)有限公司 | The control method of water unit and air-conditioner |
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2019
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Patent Citations (5)
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| KR20130046806A (en) * | 2011-10-28 | 2013-05-08 | 엘지전자 주식회사 | Air conditioner and method for controlling the same |
| CN104566776A (en) * | 2013-10-28 | 2015-04-29 | 珠海格力电器股份有限公司 | Control method and control device for water cooling air conditioner unit and water cooling air conditioner unit |
| CN104764146A (en) * | 2015-03-23 | 2015-07-08 | 广东美的暖通设备有限公司 | Control method, device and system for achieving water-side heat exchanger freeze-proofing protection |
| CN104748306A (en) * | 2015-03-24 | 2015-07-01 | 广东美的暖通设备有限公司 | Anti-freezing method and device for unit in air conditioning system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986283A (en) * | 2019-11-26 | 2020-04-10 | 珠海格力电器股份有限公司 | Water multi-connected system heating anti-freezing mode control method, computer readable storage medium and air conditioner |
| CN111006358A (en) * | 2019-12-23 | 2020-04-14 | 四川虹美智能科技有限公司 | Fault detection method based on water flow switch and outdoor unit |
| CN112665240A (en) * | 2020-12-08 | 2021-04-16 | 珠海格力电器股份有限公司 | Unit water flow switch monitoring method and device and water chilling unit |
| CN114992909A (en) * | 2021-03-02 | 2022-09-02 | 广东美的暖通设备有限公司 | Control method of heat pump system and heat pump system |
| CN115823786A (en) * | 2022-12-08 | 2023-03-21 | 珠海格力电器股份有限公司 | Unit anti-freezing control method and device and water chilling unit |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191112 |
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| RJ01 | Rejection of invention patent application after publication |