CN104729171A - Cold-hot water unit anti-freezing protection device and method - Google Patents
Cold-hot water unit anti-freezing protection device and method Download PDFInfo
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- CN104729171A CN104729171A CN201510139921.0A CN201510139921A CN104729171A CN 104729171 A CN104729171 A CN 104729171A CN 201510139921 A CN201510139921 A CN 201510139921A CN 104729171 A CN104729171 A CN 104729171A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/005—Arrangement or mounting of control or safety devices of safety devices
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Abstract
The invention relates to the field of cold/hot water units, in particular to a cold-hot water unit anti-freezing protection device and method. The cold-hot water unit anti-freezing protection device comprises a temperature sensor for detecting the temperature of the environment to be detected, an alarm device, a controller and a self contained power pack for supplying power to the temperature sensor, the alarm device and the controller. The controller can receive the environment temperature transmitted by the temperature sensor and control the alarm device to give out an alarm. The anti-freezing protection device can be powered on to conduct anti-freezing detection and judgment after a cold/hot water unit is powered off and remind a user timely to prevent the cold/hot water unit from being frozen off, and the problems that basic anti-freezing protection control is invalid due to the fact that the cold/hot water unit is powered off while a user forgets to discharge water are solved, so that a water system of the cold/hot water unit freezes, and pipes are frozen and damaged are solved.
Description
Technical field
The present invention relates to water chiller-heater unit field, be specifically related to a kind of water chiller-heater unit anti-freeze protection device and water chiller-heater unit anti-frost protection method.
Background technology
Water chiller-heater unit is for user provides the air-conditioner set of hot and cold water, it utilizes regenerative resource dry air in natural environment, a kind of environment-friendly high-efficiency of cold is obtained and the type of cooling of economy by the hot and humid area between water and air, there is lower cooling device cost, significantly can reduce power consumption, play an important role in energy-saving and emission-reduction, therefore, water chiller-heater unit is widely used.
But in using in the winter time, in particularly northerly winter, residing for the water system of water chiller-heater unit, environment can be down to less than 0 DEG C, and at this temperature, the water system of water chiller-heater unit is easily frozen, therefore there is antifreeze demand winter.In prior art, for preventing the water system of water chiller-heater unit from freezing, in water chiller-heater unit, anti-frost protection control device can be set usually.But when if user does not use water chiller-heater unit for a long time and water chiller-heater unit power-off placed, due to the power-off of anti-frost protection control device, so antifreeze control can be lost efficacy.Therefore the water in water cooling and heating units system must be bled off, otherwise water system can be caused to freeze, gently then water lines bursting by freezing, heavy then refrigerant pipe bursting by freezing in heat exchanger, and then cause water to enter in fluorine system causing greater loss.But in use, user often can forget and discharges water after water chiller-heater unit power-off is placed, so above harm often occurs, causes extreme loss to user.
Based on above description; need badly and want a kind of water chiller-heater unit anti-freeze protection device; with solve exist in prior art due to user water chiller-heater unit power-off place after forget that the caused water system that discharges water freezes; light then water lines bursting by freezing; heavy then refrigerant pipe bursting by freezing in heat exchanger, and then cause water to enter the problem causing greater loss in fluorine system.
Summary of the invention
In view of this, an object of the present invention is to provide a kind of water chiller-heater unit anti-freeze protection device, and anti-freeze protection device can carry out antifreeze detection by self-powered power supply and judge after water chiller-heater unit power-off, and reminding user prevents water chiller-heater unit freezing in time.
Two of object of the present invention is to provide a kind of water chiller-heater unit anti-frost protection method; described anti-frost protection method is applied to above-described water chiller-heater unit anti-freeze protection device; after water chiller-heater unit power-off, still can carry out antifreeze detection by the method to judge, and reminding user prevents from water chiller-heater unit freezing in time.
Three of object of the present invention is to provide a kind of water chiller-heater unit anti-frost protection method, can realize the repeatedly prompting to user by the method, improves water chiller-heater unit antifreeze reliability in the winter time.
The embodiment of the present invention is by the following technical solutions:
A kind of water chiller-heater unit anti-freeze protection device; described anti-freeze protection device comprises temperature sensor for detecting environment temperature to be detected, alarm, controller and self-powered for what power for described temperature sensor, alarm, controller; described controller can receive the environment temperature that described temperature sensor transmits, and can control described alarm and report to the police.
As preferably, the checkout gear that described temperature sensor comprises testing circuit and is connected with described testing circuit, described checkout gear is for detecting the temperature of environment to be detected and the environment temperature detected being passed to described testing circuit.
As preferably, described alarm be can sonorific sound alarm subsystem, can produce light light crossing-signal or can produce simultaneously sound with or the audible-visual annunciator of light.
As preferably, described checkout gear is temperature detector.
As preferably, described checkout gear is connected with described testing circuit by data wire, and is arranged in environment to be detected.
As preferably, described self-powered be button power supply.
As preferably, described water chiller-heater unit comprises manual operator, and it is inner that described anti-freeze protection device is built in described manual operator.
As preferably, described temperature sensor, alarm are also connected with the unit power supply of powering for described water chiller-heater unit respectively.
A kind of water chiller-heater unit anti-frost protection method, described anti-frost protection method is applied to water chiller-heater unit anti-freeze protection device as above, and described anti-frost protection method comprises step:
Self-poweredly after S10, unit power cut-off to power for controller;
S221, controller judge that whether the unit power cut-off time is more than the second preset time t 2, if so, then perform step S222;
S222, controller control temperature sensor detect ambient temperature value to be detected in real time, and detected ambient temperature value are passed to controller, perform step S223 afterwards;
S223, controller judge, whether continuing ambient temperature value detected in the 3rd preset time t 3 all lower than preset temperature T1, if so, then to perform step S224;
S224, controller control alarm equipment alarm.
As preferably, further comprising the steps of between step S10 and step S211:
S211, controller judge that whether the unit power cut-off time is more than the first preset time t 1, if so, then perform step S212; Wherein, t1 < t2;
S212, controller control alarm equipment alarm.
As preferably, the span of described first preset time t 1 is 14 ~ 16s; The span of described second preset time t 2 is 9 ~ 11min; The span of described 3rd preset time t 3 is 15 ~ 30s; The span of described preset temperature T1 is 0 ~ 2 DEG C.
The Advantageous Effects of the technical scheme that the embodiment of the present invention proposes is:
(1) the water chiller-heater unit anti-freeze protection device provided due to the application comprises temperature sensor for detecting environment temperature to be detected, alarm, controller and self-powered for what power for described temperature sensor, alarm, controller; described controller can receive the environment temperature that described temperature sensor transmits, and can control described alarm and report to the police.Therefore, anti-freeze protection device can carry out antifreeze detection by self-powered power supply and judge after water chiller-heater unit power-off, and reminding user prevents water chiller-heater unit freezing in time.The program to solve because of water chiller-heater unit power-off substantially antifreeze defense controls and lost efficacy, and user forgets again and discharges water and cause the water system of water chiller-heater unit to freeze and then the problem of freezing pipeline simultaneously.
(2) the water chiller-heater unit anti-frost protection method provided due to the application not only controls alarm equipment alarm in the unit power cut-off time more than the rear controller of the first preset time t 1; but also in the unit power cut-off time more than the second preset time t 2; and the ambient temperature value detected by continuing in the 3rd preset time t 3 all controls alarm equipment alarm lower than preset temperature T1 Time Controller; so the repeatedly prompting to user can be realized by the method, improve water chiller-heater unit antifreeze reliability in the winter time.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing the embodiment of the present invention is briefly described, apparently, accompanying drawing in the following describes is only 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 the content of the embodiment of the present invention and these accompanying drawings.
Fig. 1 is the structural representation of the water chiller-heater unit anti-freeze protection device that the application's specific embodiment provides;
Fig. 2 is the water chiller-heater unit anti-frost protection method flow diagram that the application's specific embodiment provides;
Fig. 3 is a kind of preferred embodiment flow chart of the water chiller-heater unit anti-frost protection method that the application's specific embodiment provides.
In figure:
1, anti-freeze protection device; 2, water chiller-heater unit;
11, self-powered; 12, temperature sensor; 13, alarm; 14, controller; 15, gauge tap;
121, testing circuit; 122, data wire; 123, checkout gear.
Detailed description of the invention
The technical problem solved for making the present invention, the technical scheme of employing and the technique effect that reaches are clearly, be described in further detail below in conjunction with the technical scheme of accompanying drawing to the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those skilled in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Device embodiment
As shown in Figure 1, the anti-freeze protection device 1 that the application provides is arranged in water chiller-heater unit 2.Described anti-freeze protection device 1 comprise temperature sensor 12, alarm 13, controller 14 and for for described temperature sensor 12, alarm 13, controller 14 power self-powered 11.Described temperature sensor 12 is connected with controller 14.Described self-powered 11 power respectively by wire and temperature sensor 12, alarm 13 and controller 14.Preferably, connect described self-powered 11 with the wire of alarm 13 on be in series with gauge tap 15, controller 14 is connected with gauge tap 15, controller 14 by control described gauge tap 15 whether closed to control self-powered 11 be that alarm 13 is powered.Described temperature sensor 12 is for detecting the temperature of environment to be detected, specific in the present embodiment, temperature sensor 12 for detect there is water chiller-heater unit 2 water system residing for environment temperature, and detected temperature value is passed to controller 14, described controller 14 not only temperature controllable sensor 12 carries out work, and receive the ambient temperature value of described temperature sensor 12 transmission, afterwards ambient temperature value is judged, whether control described alarm 13 according to judged result and then decision to report to the police, if need to report to the police, then control described alarm 13 to report to the police.
When water chiller-heater unit 2 power-off, substantially antifreeze defense controls was lost efficacy, water chiller-heater unit 2 carries out antifreeze detection by self-powered 11 power supplies and judges, and reminding user prevents water chiller-heater unit 2 freezing in time.To solve when water chiller-heater unit 2 power-off substantially antifreeze defense controls to lose efficacy, user forgets again and discharges water and cause the water system of water chiller-heater unit 2 to freeze and then the problem of freezing pipeline simultaneously.
In the present embodiment, preferably, the checkout gear 123 that described temperature sensor 12 comprises testing circuit 121 and is connected with described testing circuit 121, described checkout gear 123 is for detecting the temperature of environment to be detected and the environment temperature detected being passed to described testing circuit 121.Described testing circuit 121 passes to controller 14 after the environment temperature that described checkout gear 123 passes over is carried out preliminary treatment.
In the present embodiment, preferably, described alarm 13 be can sonorific sound alarm subsystem, the light crossing-signal of light can be produced or the audible-visual annunciator of sound and light can be produced simultaneously.Can produce obvious light and sound after described audible-visual annunciator connection is self-powered, warning effect is best.
In the present embodiment, preferably, described checkout gear 121 is temperature detector, is certainly not limited to temperature detector, can also be other checkout gear.
In the present embodiment, preferably, described checkout gear 123 (being generally probe) is connected with described testing circuit 121 by data wire 122, and described data wire 122 extends in detected environment, makes checkout gear 123 be arranged in environment to be detected.
In the present embodiment; preferably; described water chiller-heater unit 2 comprises manual operator; this anti-freeze protection device 1 form is not limit; can be integrated by making it to be built in the inner and manual operator of manual operator to the optimal design of manual operator, also can as independent protective device independent of water chiller-heater unit 2.
In the present embodiment, preferably, described temperature sensor 12, alarm 13 are also connected with the unit power supply of powering for described water chiller-heater unit 2 respectively, incessantly have self-powered 11 power supplies, but also use same power supply with water chiller-heater unit 2.
In the present embodiment, preferably, described self-powered 11 is button power supply.Certainly, power supply is not limited thereto.Described button power supply is small-sized power supply, adopts the power supply manufacture of the compact structure such as button cell to form, to ensure to cause the size of self manual operator of water chiller-heater unit 2 or protective device to have a larger increase.Power for manual operator or protective device for these self-powered 11.When water chiller-heater unit 2 normally powers on, manual operator or protective device are by the direct powered operation of unit power supply, power for it when manual operator after water chiller-heater unit 2 power down or protective device self-powered 11 start.
In the present embodiment, preferably, be provided with display screen in described manual operator, described display screen is only lighted when user operates manual operator and is automatically closed to save power supply after the t0 time of user's shut-down operation.As preferably, described t0 is preferably 10s but is not limited thereto.
Embodiment of the method
The water chiller-heater unit anti-frost protection method that the application provides is applied to above-described water chiller-heater unit anti-freeze protection device, and as shown in Figure 2, described anti-frost protection method comprises step:
After S10, unit power cut-off, self-powered 11 power for controller 14.
S221, controller 14 judge that whether the unit power cut-off time is more than the second preset time t 2, if more than the second preset time t 2, then perform step S222; Otherwise controller 14 continues to judge that whether the unit power cut-off time is more than the second preset time t 2.
S222, controller 14 control temperature sensor 12 detect ambient temperature value to be detected in real time, and detected ambient temperature value is passed to controller 14, perform step S223 afterwards.
S223, controller 14 judge whether continuing ambient temperature value detected in the 3rd preset time t 3 all lower than preset temperature T1, if continuing ambient temperature value detected in the 3rd preset time t 3 all lower than preset temperature T1, then perform step S224; Otherwise controller 14 continues to judge that whether ambient temperature value detected in lasting 3rd preset time t 3 is all lower than preset temperature T1.
S224, controller 14 control alarm 13 and report to the police, until user closes alarm by operation manual operator or protective device, then no longer open afterwards.
Fig. 3 is a kind of preferred embodiment flow chart of the water chiller-heater unit anti-frost protection method that the application's specific embodiment provides.As shown in Figure 3, preferably, between step S10 and step S211, also comprise step S211 and step S212, whole preferred water chiller-heater unit anti-frost protection method comprises step:
After S10, unit power cut-off, self-powered 11 power for controller 14.
S211, controller 14 judge that whether the unit power cut-off time is more than the first preset time t 1, if the unit power cut-off time is more than the first preset time t 1, then perform step S212; Otherwise controller 14 continues to judge that whether the unit power cut-off time is more than the first preset time t 1.Wherein, t1 < t2.
S212, controller 14 control alarm 13 and report to the police, until user closes alarm 13 by operation manual operator or protective device, then no longer open afterwards.
S221, controller 14 judge that whether the unit power cut-off time is more than the second preset time t 2, if more than the second preset time t 2, then perform step S222; Otherwise controller 14 continues to judge that whether the unit power cut-off time is more than the second preset time t 2.
S222, controller 14 control temperature sensor 12 detect ambient temperature value to be detected in real time, and detected ambient temperature value is passed to controller 14, perform step S223 afterwards.
S223, controller 14 judge whether continuing ambient temperature value detected in the 3rd preset time t 3 all lower than preset temperature T1, if continuing ambient temperature value detected in the 3rd preset time t 3 all lower than preset temperature T1, then perform step S224; Otherwise controller 14 continues to judge that whether ambient temperature value detected in lasting 3rd preset time t 3 is all lower than preset temperature T1.
S224, controller 14 control alarm 13 and report to the police, until user closes alarm by operation manual operator or protective device, then no longer open afterwards.
In the present embodiment, preferably, the span of described first preset time t 1 is 14 ~ 16s, more preferably 15s, but is not limited thereto.
In the present embodiment, preferably, the span of described second preset time t 2 is 9 ~ 11min, more preferably 10min, but is not limited thereto.
In the present embodiment, preferably, the span of described 3rd preset time t 3 is 15 ~ 30s, but is not limited thereto.
In the present embodiment, preferably, the span of described preset temperature T1 is 0 ~ 2 DEG C, but is not limited thereto.
The water chiller-heater unit anti-frost protection method provided due to the application not only controls alarm 13 in the unit power cut-off time more than the rear controller 14 of the first preset time t 1 and reports to the police; but also in the unit power cut-off time more than the second preset time t 2; and the ambient temperature value detected by continuing in the 3rd preset time t 3 all controls alarm 13 lower than preset temperature T1 Time Controller 14 and reports to the police; so the repeatedly prompting to user can be realized by the method, improve water chiller-heater unit 2 antifreeze reliability in the winter time.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (10)
1. a water chiller-heater unit anti-freeze protection device; it is characterized in that; described anti-freeze protection device (1) comprises temperature sensor (12) for detecting environment temperature to be detected, alarm (13), controller (14) and self-powered (11) for powering for described temperature sensor (12), alarm (13), controller (14); described controller (14) can receive the environment temperature that described temperature sensor (12) transmits, and can control described alarm (13) and report to the police.
2. water chiller-heater unit anti-freeze protection device as claimed in claim 1; it is characterized in that; the checkout gear (123) that described temperature sensor (12) comprises testing circuit (121) and is connected with described testing circuit (121), described checkout gear (123) is for detecting the temperature of environment to be detected and the environment temperature detected being passed to described testing circuit (121).
3. water chiller-heater unit anti-freeze protection device as claimed in claim 2, is characterized in that, described alarm (13) for can sonorific sound alarm subsystem, the light crossing-signal of light can be produced or the audible-visual annunciator of sound and light can be produced simultaneously.
4. water chiller-heater unit anti-freeze protection device as claimed in claim 2, it is characterized in that, described checkout gear (123) is temperature detector; Described checkout gear (123) is connected with described testing circuit (121) by data wire (122), and is arranged in environment to be detected.
5. water chiller-heater unit anti-freeze protection device as claimed in claim 1, it is characterized in that, described self-powered (11) are button power supply.
6. water chiller-heater unit anti-freeze protection device as claimed in claim 1, it is characterized in that, described water chiller-heater unit (2) comprises manual operator, and it is inner that described anti-freeze protection device (1) is built in described manual operator.
7. water chiller-heater unit anti-freeze protection device as claimed in claim 1, it is characterized in that, described temperature sensor (12), alarm (13) are also connected with the unit power supply of powering for described water chiller-heater unit (2) respectively.
8. a water chiller-heater unit anti-frost protection method, described anti-frost protection method is applied to water chiller-heater unit anti-freeze protection device as claimed in claim 7, it is characterized in that, described anti-frost protection method comprises step:
After S10, unit power cut-off, self-powered (11) are controller (14) power supply;
S221, controller (14) judge that whether the unit power cut-off time is more than the second preset time t 2, if so, then perform step S222;
S222, controller (14) control temperature sensor (12) detect ambient temperature value to be detected in real time, and detected ambient temperature value is passed to controller (14), perform step S223 afterwards;
S223, controller (14) judge, whether continuing ambient temperature value detected in the 3rd preset time t 3 all lower than preset temperature T1, if so, then to perform step S224;
S224, controller (14) control alarm (13) and report to the police.
9. water chiller-heater unit anti-frost protection method as claimed in claim 8, is characterized in that, further comprising the steps of between step S10 and step S211:
S211, controller (14) judge that whether the unit power cut-off time is more than the first preset time t 1, if so, then perform step S212; Wherein, t1 < t2;
S212, controller (14) control alarm (13) and report to the police.
10. water chiller-heater unit anti-frost protection method as claimed in claim 9, it is characterized in that, the span of described first preset time t 1 is 14 ~ 16s; The span of described second preset time t 2 is 9 ~ 11min; The span of described 3rd preset time t 3 is 15 ~ 30s; The span of described preset temperature T1 is 0 ~ 2 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139921.0A CN104729171B (en) | 2015-03-27 | 2015-03-27 | Cold-hot water unit anti-freezing protection device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510139921.0A CN104729171B (en) | 2015-03-27 | 2015-03-27 | Cold-hot water unit anti-freezing protection device and method |
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| CN104729171A true CN104729171A (en) | 2015-06-24 |
| CN104729171B CN104729171B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510139921.0A Active CN104729171B (en) | 2015-03-27 | 2015-03-27 | Cold-hot water unit anti-freezing protection device and method |
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| CN105091260A (en) * | 2015-08-19 | 2015-11-25 | 广东美的暖通设备有限公司 | Anti-freezing protection device and method for air-conditioning unit water system |
| CN105373055A (en) * | 2015-11-18 | 2016-03-02 | 珠海格力电器股份有限公司 | Unit fault monitoring method, device and air conditioning system |
| CN111238037A (en) * | 2020-02-20 | 2020-06-05 | 青岛海信日立空调***有限公司 | Hot water unit |
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| JP2004245479A (en) * | 2003-02-13 | 2004-09-02 | Calsonic Kansei Corp | Frost formation detecting method for refrigerating cycle using supercritical refrigerant and defrosting method using the same |
| KR20070005166A (en) * | 2005-07-05 | 2007-01-10 | 엘지전자 주식회사 | Control process for heat in air conditioner |
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| CN111238037A (en) * | 2020-02-20 | 2020-06-05 | 青岛海信日立空调***有限公司 | Hot water unit |
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| Publication number | Publication date |
|---|---|
| CN104729171B (en) | 2017-01-25 |
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