CN104634062A - Household water machine refrigeration control method and device - Google Patents
Household water machine refrigeration control method and device Download PDFInfo
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- CN104634062A CN104634062A CN201510023758.1A CN201510023758A CN104634062A CN 104634062 A CN104634062 A CN 104634062A CN 201510023758 A CN201510023758 A CN 201510023758A CN 104634062 A CN104634062 A CN 104634062A
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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
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/027—Condenser control arrangements
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Abstract
The invention discloses a household water machine refrigeration control method and device. The method includes the following steps that S1, a refrigeration command is received, and a refrigeration model is enabled according to the refrigeration command; S2, operation parameters of a household water machine are obtained; S3, whether the pause condition is met or not is judged according to the operation parameters; S4, if the pause condition is met, refrigeration is paused; S5, whether a restart condition is met or not is further judged, if the restart condition is met, refrigeration is conducted, and the S2 to S5 are executed repeatedly till the refrigeration end condition is met. Accordingly, in the operating process of the household water machine, the performance of a condenser and an evaporator can be restored to be the optimal performance state through refrigeration pause, and the evaporating temperature can be lowered to a low degree in next operation, so that the performance of the condenser, the evaporator and a compressor can be multiplied, super-low water temperature refrigeration is achieved, the refrigeration capacity is improved, and the stability of the household water machine is improved.
Description
Technical field
The present invention relates to technical field of electric appliances, particularly a kind of refrigeration control method of service water machine and a kind of refrigeration control device of service water machine.
Background technology
For drinking equipment industry, due to the restriction of its industry cost factor, the refrigerating capacity of relevant drinking equipment generally designs at about 2 liters, if improve refrigerating capacity again, the cost needed for drinking equipment can significantly increase, thus loses price competitiveness.
The following shortcoming that correlation technique mainly exists:
The first, the condenser of relevant drinking equipment can not meet the performance requirement of ultralow water temperature.This is that the evaporating temperature in drinking equipment will no longer change, and in drinking equipment, refrigerating plant loses regulating power, thus cause long overload operation in drinking equipment due to after condenser is elevated to uniform temperature.If condenser to be replaced by the condenser that refrigerating capacity is stronger, although above-mentioned situation can be improved, significantly cost can be increased.In addition, because the size of water dispenser is all very little, cause condenser size also restricted.
It two is that the compressor of relevant drinking equipment can not meet the performance requirement of ultralow water temperature.If this is the performance requirement of the temperature owing to will reach ultralow water, it is very low that the evaporating temperature so in drinking equipment also will design, and compressor air-discharging amount also needs corresponding increasing.If compressor to be replaced by the compressor that capacity is larger, product cost can be caused to increase.Further, in order to match with compressor, corresponding evaporimeter also will do very large, capillary does very long, and these all also can make cost improve.
Thus, by increasing the capacity of compressor, increasing the refrigerating capacity of condenser and the lifting drinking equipments such as evaporator size and growth capillary, significantly will improve production cost, make user be difficult to accept, reduce the competitiveness of product in market.
Summary of the invention
The present invention is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, one object of the present invention is the refrigeration control method proposing a kind of service water machine, and the method, when not increasing production cost, realizes ultralow water temperature refrigeration, improves refrigerating capacity.
One object of the present invention is the refrigeration control device proposing a kind of service water machine.
The refrigeration control method of the service water machine of embodiment proposition according to an aspect of the present invention, comprises the following steps: S1, the instruction of reception refrigeration, and enters refrigeration mode according to described refrigeration instruction; The operational factor of S2, acquisition service water machine; S3, judge whether satisfied time-out condition according to described operational factor; If S4 meets described time-out condition, then suspend refrigeration; S5, judge whether to meet and restart condition further, restart condition if met, then carry out refrigeration repeated execution of steps S2-5, until meet the termination condition that freezes.
According to the refrigeration control method of the service water machine that the embodiment of the present invention proposes, after entering refrigeration mode, obtain the operational factor of service water machine, and judge whether satisfied time-out condition according to operational factor, if meet time-out condition, then suspend refrigeration, judge whether further to meet and restart condition, if meet and restart condition, then carry out freezing and repeat judge whether satisfied time-out condition and restart condition, until meet refrigeration termination condition.Thus, in the running of service water machine, by suspending, refrigeration makes condenser, the performance of evaporimeter is restored to optimal performance state, when running, evaporating temperature can fall too low next time, thus make the performance of condenser, evaporimeter and compressor reach the performance of many times, realize ultralow water temperature refrigeration, improve refrigerating capacity.Further, the method also avoid cost to be increased, and avoids the deficiency of the unstable properties that condenser and evaporimeter overload operation cause, improves the stability of service water machine.
According to one embodiment of present invention, described operational factor is the temperature of condenser in described service water machine, wherein, judge when the temperature of described condenser is greater than the first preset temperature threshold value to meet described time-out condition, and restart condition described in judging when the temperature of described condenser is less than the second preset temperature threshold value to meet.
According to another embodiment of the invention, described operational factor is the cooling time of described service water machine, wherein, when described cooling time is greater than the first preset time threshold judge meet described time-out condition, and when time out is greater than the second preset time threshold judge meet described in restart condition.
According to still another embodiment of the invention, described operational factor is the cold water temperature of described service water machine, wherein, judges to meet described time-out condition when reaching in multiple set water temperature when described cold water temperature.
According to still a further embodiment, described operational factor is evaporator temperature and the cold water temperature of described service water machine, wherein, judges to meet described time-out condition when the difference of described evaporator temperature and described cold water temperature is less than the 3rd preset temperature threshold value.
According to still a further embodiment, described operational factor is condenser temperature and the environment temperature of described service water machine, wherein, judges to meet described time-out condition when the difference of described condenser temperature and environment temperature is less than the 4th preset temperature threshold value.
According to some embodiments of the present invention, when time out is greater than the 3rd preset time threshold judge meet described in restart condition.
The refrigeration control device of the service water machine of embodiment proposition, comprising: receiver module, for receiving the refrigeration instruction of user according to a further aspect of the invention; Detection module, for detecting the operational factor of service water machine; Control module, refrigeration mode is entered for controlling described service water machine according to described refrigeration instruction, and obtain described operational factor, and judge whether satisfied time-out condition according to described operational factor, if meet described time-out condition, then suspend refrigeration, and judge whether further meet restart condition, restart condition if met, then carry out freezing and repeat to judge described operational factor whether meet described time-out condition and described in restart condition, until meet refrigeration termination condition.
According to the refrigeration control device of the service water machine that the embodiment of the present invention proposes, control module is after entering refrigeration mode, obtain the operational factor of service water machine, and judge whether satisfied time-out condition according to operational factor, if meet time-out condition, then suspend refrigeration, judge whether further to meet and restart condition, if meet and restart condition, then carry out freezing and repeat judge whether satisfied time-out condition and restart condition, until meet refrigeration termination condition.Thus, in the running of service water machine, by suspending, refrigeration makes condenser, the performance of evaporimeter is restored to optimal performance state, when running, evaporating temperature can fall too low next time, thus make the performance of condenser, evaporimeter and compressor reach the performance of many times, realize ultralow water temperature refrigeration, improve refrigerating capacity.Further, this device also avoid cost to be increased, and avoids the deficiency of the unstable properties that condenser and evaporimeter overload operation cause, improves the stability of service water machine.
According to one embodiment of present invention, described operational factor is the temperature of condenser in described service water machine, wherein, when the temperature of described condenser is greater than the first preset temperature threshold value, described control module judges to meet described time-out condition, and when the temperature of described condenser is less than the second preset temperature threshold value described control module judge to meet described in restart condition.
According to another embodiment of the invention, described operational factor is the cooling time of described service water machine, wherein, when described cooling time is greater than the first preset time threshold, described control module judges to meet described time-out condition, and when time out is greater than the second preset time threshold described control module judge to meet described in restart condition.
According to still another embodiment of the invention, described operational factor is the cold water temperature of described service water machine, and wherein, when reaching in multiple set water temperature when described cold water temperature, described control module judges to meet described time-out condition.
According to still a further embodiment, described operational factor is evaporator temperature and the cold water temperature of described service water machine, wherein, when the difference of described evaporator temperature and described cold water temperature is less than the 3rd preset temperature threshold value, described control module judges to meet described time-out condition.
According to still a further embodiment, described operational factor is condenser temperature and the environment temperature of described service water machine, wherein, when the difference of described condenser temperature and environment temperature is less than the 4th preset temperature threshold value, described control module judges to meet described time-out condition.
According to some embodiments of the present invention, when time out is greater than the 3rd preset time threshold described control module judge to meet described in restart condition.
Accompanying drawing explanation
Fig. 1 is the flow chart of the refrigeration control method of service water machine according to the embodiment of the present invention; And
Fig. 2 is the block diagram of the refrigeration control device of service water machine according to the embodiment of the present invention.
Reference numeral:
Receiver module 1, detection module 2 and control module 3.
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
Below with reference to the accompanying drawings refrigeration control method and the device of the service water machine of the embodiment of the present invention are described.
Fig. 1 is the flow chart of the refrigeration control method of service water machine according to the embodiment of the present invention.Service water machine is used for lowering the temperature to the water in tank, and when user is without water, is got up by low-temperature cold water deposit, when user's water, can release a large amount of low-temperature cold waters at any time.
As shown in Figure 1, comprise the following steps according to the refrigeration control method of the service water machine of the embodiment of the present invention:
S1, the instruction of reception refrigeration, and enter refrigeration mode according to refrigeration instruction.
Wherein, in cooling mode, service water machine carries out refrigerating operaton to lower the temperature to the water in service water machine.
The operational factor of S2, acquisition service water machine.
According to some embodiments of the present invention, it is one or more that operational factor can be in the temperature of condenser, cooling time, cold water temperature, evaporator temperature and environment temperature.
S3, judge whether satisfied time-out condition according to operational factor.
If S4 meets time-out condition, then suspend refrigeration.
S5, judge whether to meet and restart condition further, restart condition if met, then carry out refrigeration repeated execution of steps S2-5, until meet the termination condition that freezes.
That is, constantly circulating in the process of execution step S2-5, if the water temperature drop in service water machine is to being less than or equal to default target water temperature, then judges to meet refrigeration termination condition, exit refrigeration mode, control service water machine stopping refrigeration.
After service water machine starts to carry out refrigerating operaton, start to lower the temperature to the water in tank.Along with the lengthening of cooling time, in service water machine, the heat radiation of condenser may reach maximum, evaporating temperature cannot continue to decline, now can judge that operational factor meets time-out condition, afterwards, of short duration the stopping of service water machine is made to suspend refrigeration by various mode, like this, the heat of condenser and compressor falls apart outwardly fast, best refrigerating state adjusted to again by whole service water machine, now can judge that operational factor judges to meet and restart condition, service water machine re-starts refrigerating operaton, continues the water temperature in tank toward declining.Along with the continuation of cooling time lengthens, in service water machine, the heat radiation of condenser may can reach again maximum, when evaporating temperature also cannot continue to decline, service water machine can of short durationly stop again, the heat of condenser and compressor falls apart outwardly fast, best refrigerating state adjusted to again by service water machine, then carries out refrigerating operaton again.
So constantly circular flow, until the water temperature in tank is fallen too low very low, such as, is down to default target water temperature by water temperature, completes refrigeration.
That is, by batch (-type) refrigeration control mode, constantly the radiating state of adjustment service water machine, makes the whole service water captain time remain on high efficiency operating condition, until water temperature is reduced to default target water temperature.
The refrigeration control method of the service water machine that the embodiment of the present invention proposes, after entering refrigeration mode, obtain the operational factor of service water machine, and judge whether satisfied time-out condition according to operational factor, if meet time-out condition, then suspend refrigeration, judge whether further to meet and restart condition, if meet and restart condition, then carry out freezing and repeat judge whether satisfied time-out condition and restart condition, until meet refrigeration termination condition.Thus, in the running of service water machine, by suspending, refrigeration makes condenser, the performance of evaporimeter is restored to optimal performance state, when running, evaporating temperature can fall too low next time, thus make the performance of condenser, evaporimeter and compressor reach the performance of many times, realize ultralow water temperature refrigeration, improve refrigerating capacity.Further, the method also avoid cost to be increased, and avoids the deficiency of the unstable properties that condenser and evaporimeter overload operation cause, improves the stability of service water machine.
The refrigeration control method of the embodiment of the present invention is described in detail below in conjunction with following specific embodiment.
According to a specific embodiment of the present invention, operational factor can be the temperature of condenser in service water machine, wherein, judge to meet time-out condition when the temperature of condenser is greater than the first preset temperature threshold value, and judge when the temperature of condenser is less than the second preset temperature threshold value to meet to restart condition.Certainly, whether also can meet according to other condition judgment and restart condition, such as whether time out reaches time threshold.
It should be noted that, detect the temperature of condenser by the first temperature sensor be arranged on condenser.More specifically, the first temperature sensor can be arranged on the end of condenser to detect the temperature of condenser ends.
Service water machine carries out refrigerating operaton, cold water temperature starts to decline, and the temperature of condenser starts to rise, when the temperature of condenser reaches the first preset temperature threshold value, judge to meet time-out condition, service water machine temporarily stops, then condenser is to quick heat radiating in air, and the temperature of condenser declines fast, when the temperature of condenser drop to be less than the first preset temperature threshold value time, judge to meet and restart condition, service water machine re-starts refrigerating operaton.So constantly circular flow, until the water temperature in tank is fallen too low very low, such as, is down to default target water temperature by water temperature.So namely, complete refrigeration by batch (-type) refrigeration control mode.
According to another specific embodiment of the present invention, operational factor can be the cooling time of service water machine, wherein, judge to meet time-out condition when being greater than the first preset time threshold when cooling, and judge when time out is greater than the second preset time threshold to meet to restart condition.Certainly, whether also can meet according to other condition judgment and restart condition, whether the temperature of such as condenser is less than preset temperature threshold value.
It should be noted that, by the first timer timing carried out to cooling time and by the second timer, timing carried out to time out.More specifically, when service water machine enters refrigeration mode, the first timer can be controlled and from 0, carry out timing with record-keeping system cool time; When service water machine suspends refrigeration, the second timer can be controlled and from 0, carry out timing to record time out.
First on service water machine, set the first preset time threshold, reset the second preset time threshold.Service water machine starts to carry out refrigerating operaton, cold water temperature starts to decline, and when service water mechanism cold runs to the first preset time threshold, judges to meet time-out condition, now condenser heat radiation reaches maximum, evaporating temperature cannot continue to reduce, and service water machine temporarily stops, and then condenser is to quick heat radiating in air, when the time out of service water machine reaches the second preset time threshold, best refrigerating state adjusted to by service water machine, meets and restarts condition, re-start refrigerating operaton.So constantly circular flow, until the water temperature in tank is fallen too low very low, such as, is down to default target water temperature by water temperature.So namely, complete refrigeration by batch (-type) refrigeration control mode.
According to another specific embodiment of the present invention, operational factor can be the cold water temperature of service water machine, wherein, judges to meet time-out condition when reaching in multiple set water temperature when cold water temperature.
It should be noted that, detect cold water temperature by the second temperature sensor be arranged on tank.
Further, judge when time out is greater than the 3rd preset time threshold to meet to restart condition.Certainly, whether also can meet according to other condition judgment and restart condition, whether the temperature of such as condenser is less than preset temperature threshold value.
It should be noted that, by the 3rd timer, timing is carried out to time out.More specifically, when service water machine suspends refrigeration, the 3rd timer can be controlled and from 0, carry out timing to record time out.
Service water machine starts to carry out refrigerating operaton, water temperature declines in multiple set water temperature, when normal-temperature water being dropped in multiple set water temperature, the heat radiation of condenser reaches maximum, and evaporating temperature cannot continue to decline, and service water machine is of short duration to shut down, then condenser is to quick heat radiating in air, when reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, meets and restarts condition.Then, service water machine re-starts refrigerating operaton, water temperature declines to another in multiple set water temperature again, when cold water temperature is dropped in multiple set water temperature another time, the heat radiation of condenser reaches maximum, and service water machine is of short duration to shut down, when reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, and service water machine carries out refrigerating operaton again.So constantly circular flow, until the water temperature in tank is fallen too low very low, such as, is down to default target water temperature by water temperature, so namely completes refrigeration by batch (-type) refrigeration control mode.
In addition, it should be noted that, multiple set water temperature by descending, can be declined until reach target water temperature by interval refrigeration cold water temperature gradually.For example, multiple set water temperature can comprise water temperature 1, water temperature 2 and water temperature 3, and wherein, water temperature 1 is greater than water temperature 2 and water temperature 2 is greater than water temperature 3, and water temperature 3 is target water temperature.Like this, after service water machine carries out refrigerating operaton, cold water temperature first declines to water temperature 1, and when cold water temperature reaches water temperature 1, service water machine temporarily stops.When reaching the 3rd preset time threshold when pausing, service water machine re-starts refrigerating operaton, and cold water temperature declines to water temperature 2, and when cold water temperature reaches water temperature 2, service water machine temporarily stops.When reaching the 3rd preset time threshold when pausing, service water machine carries out refrigerating operaton again, and cold water temperature declines to water temperature 3, and when cold water temperature reaches water temperature 3, cold water temperature reaches target water temperature, stops refrigeration.
According to another specific embodiment of the present invention, operational factor can be evaporator temperature and the cold water temperature of service water machine, wherein, judges to meet time-out condition when the difference of evaporator temperature and cold water temperature is less than the 3rd preset temperature threshold value.
It should be noted that, detect evaporator temperature by the three-temperature sensor installed on an evaporator and detect cold water temperature by the second temperature sensor be arranged on tank.
Further, judge when time out is greater than the 3rd preset time threshold to meet to restart condition.Certainly, whether also can meet according to other condition judgment and restart condition, whether the temperature of such as condenser is less than preset temperature threshold value.
It should be noted that, by the 3rd timer, timing is carried out to time out.More specifically, when service water machine suspends refrigeration, the 3rd timer can be controlled and from 0, carry out timing to record time out.
Service water machine starts to carry out refrigerating operaton, and cold water temperature starts to decline, and when the temperature difference between evaporator temperature and cold water temperature is less than the 3rd preset temperature threshold value, meet time-out condition, service water machine temporarily stops, and then condenser is to quick heat radiating in air.When reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, meet and restart condition, then service water machine re-starts refrigerating operaton, cold water temperature continues to decline, when temperature difference between evaporator temperature and the cold water temperature after declining reaches the 3rd preset temperature threshold value, service water machine temporarily shuts down again.When reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, and service water machine carries out refrigerating operaton again.So constantly circular flow, until the water temperature in tank is fallen very low, such as, is down to default target water temperature by water temperature, so namely completes refrigeration by batch (-type) refrigeration control mode.
According to another specific embodiment of the present invention, operational factor can be condenser temperature and the environment temperature of service water machine, wherein, judges to meet time-out condition when the difference of condenser temperature and environment temperature is less than the 4th preset temperature threshold value.
It should be noted that, by be arranged on condenser first temperature sensor detect condenser temperature and by being arranged on the 4th temperature sensor testing environment temperature on service water machine shell.More specifically, the first temperature sensor can be arranged on the end of condenser to detect the temperature of condenser ends.
Further, judge when time out is greater than the 3rd preset time threshold to meet to restart condition.Certainly, whether also can meet according to other condition judgment and restart condition, whether the temperature of such as condenser is less than preset temperature threshold value.
It should be noted that, by the 3rd timer, timing is carried out to time out.More specifically, when service water machine suspends refrigeration, the 3rd timer can be controlled and from 0, carry out timing to record time out.
Service water machine starts to carry out refrigerating operaton, cold water temperature starts to decline, and the temperature of condenser starts to rise, when temperature difference between when between the temperature and environment temperature of condenser is less than the 4th preset temperature threshold value, judge to meet time-out condition, service water machine temporarily stops, and then condenser is to quick heat radiating in air, and the temperature of condenser declines fast.When reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, meet and restart condition, then, service water machine re-starts refrigerating operaton, and cold water temperature continues to decline, and the temperature of condenser continues to rise, when temperature difference between when between the temperature and environment temperature of condenser is less than the 4th preset temperature threshold value, service water machine temporarily shuts down again.When reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, and service water machine carries out refrigerating operaton again.So constantly circular flow, until the water temperature in tank is fallen very low, such as, is down to default target water temperature by water temperature, so namely completes refrigeration by batch (-type) refrigeration control mode.
In other words, the temperature difference between condenser temperature and environment temperature can be made to remain at maximum temperature difference, be beneficial to service water machine dispel the heat to air, when the difference of condenser temperature and environment temperature is less than the 4th preset temperature threshold value, service water machine is of short duration stopping refrigerating operaton again, the heat of condenser and compressor is fallen apart outwardly fast, restarts refrigerating operaton when best refrigerating state adjusted to by service water machine, so constantly circular flow, until cold water temperature reaches ultralow target water temperature.
In addition, in other embodiments of the invention, also the temperature of condenser, cooling time, cold water temperature, evaporator temperature can be combined with the difference of cold water temperature and the difference of condenser temperature and environment temperature simultaneously carry out refrigeration control, by the above-mentioned Rule of judgment of staggered use, obtain optimum refrigeration control mode, give full play to the effect of batch (-type) refrigeration control method.
In order to realize above-described embodiment, the present invention also proposes a kind of refrigeration control device of service water machine.
Fig. 2 is the block diagram of the refrigeration control device of service water machine according to the embodiment of the present invention.Wherein, service water machine is used for lowering the temperature to the water in tank, and when user is without water, is got up by low-temperature cold water deposit, when user's water, can release a large amount of low-temperature cold waters at any time.
As shown in Figure 2, comprise according to the refrigeration control device of the service water machine of the embodiment of the present invention: receiver module 1, detection module 2 and control module 3.
Wherein, receiver module 1 is for receiving the refrigeration instruction of user; Detection module 2 is for detecting the operational factor of service water machine, and according to some embodiments of the present invention, it is one or more that operational factor can be in the temperature of condenser, cooling time, cold water temperature, evaporator temperature and environment temperature.
Control module 3 enters refrigeration mode for controlling service water machine according to refrigeration instruction, and obtain operational factor, and judge whether satisfied time-out condition according to operational factor, if meet time-out condition, then suspend refrigeration, and judge whether further meet restart condition, if meet restart condition, then carry out freezing and repeat to judge whether operational factor meets time-out condition and restart condition, until meet refrigeration termination condition.
That is, in cooling mode, service water machine carries out refrigerating operaton to lower the temperature to the water in service water machine.Whether meet time-out condition in continuous cycle criterion operational factor and restart in the process of condition, if the water temperature drop in service water machine is to being less than or equal to default target water temperature, then judge to meet refrigeration termination condition, exit refrigeration mode, control module 3 controls service water machine and stops refrigeration.
After service water machine starts to carry out refrigerating operaton, start to lower the temperature to the water in tank.Along with the lengthening of cooling time, in service water machine, the heat radiation of condenser may reach maximum, evaporating temperature cannot continue to decline, now can judge that operational factor meets time-out condition, afterwards, control module 3 controls of short duration the stopping of service water machine by various mode and suspends refrigeration, like this, the heat of condenser and compressor falls apart outwardly fast, best refrigerating state adjusted to again by whole service water machine, now can judge that operational factor judges to meet and restart condition, control module 3 controls service water machine and re-starts refrigerating operaton, continue the water temperature in tank toward declining.Along with the continuation of cooling time lengthens, in service water machine, the heat radiation of condenser may can reach again maximum, when evaporating temperature also cannot continue to decline, service water machine can of short durationly stop again, the heat of condenser and compressor falls apart outwardly fast, best refrigerating state adjusted to again by service water machine, then carries out refrigerating operaton again.
So constantly circular flow, until the water temperature in tank is fallen too low very low, such as, is down to default target water temperature by water temperature, completes refrigeration.
That is, by batch (-type) refrigeration control mode, constantly the radiating state of adjustment service water machine, makes the whole service water captain time remain on high efficiency operating condition, until water temperature is reduced to default target water temperature.
The refrigeration control device of the service water machine that the embodiment of the present invention proposes, control module is after entering refrigeration mode, obtain the operational factor of service water machine, and judge whether satisfied time-out condition according to operational factor, if meet time-out condition, then suspend refrigeration, judge whether further to meet and restart condition, if meet and restart condition, then carry out freezing and repeat judge whether satisfied time-out condition and restart condition, until meet refrigeration termination condition.Thus, in the running of service water machine, by suspending, refrigeration makes condenser, the performance of evaporimeter is restored to optimal performance state, when running, evaporating temperature can fall too low next time, thus make the performance of condenser, evaporimeter and compressor reach the performance of many times, realize ultralow water temperature refrigeration, improve refrigerating capacity.Further, this device also avoid cost to be increased, and avoids the deficiency of the unstable properties that condenser and evaporimeter overload operation cause, improves the stability of service water machine.
The refrigeration control method of the embodiment of the present invention is described in detail below in conjunction with following specific embodiment.
According to a specific embodiment of the present invention, operational factor can be the temperature of condenser in service water machine, wherein, when the temperature of condenser is greater than the first preset temperature threshold value, control module judges to meet time-out condition, and control module 3 judges to meet and restarts condition when the temperature of condenser is less than the second preset temperature threshold value.Certainly, whether also can meet according to other condition judgment and restart condition, such as whether time out reaches time threshold.
It should be noted that, detection module 2 can comprise the first temperature sensor, and the first temperature sensor can be arranged on condenser to detect the temperature of condenser.More specifically, the first temperature sensor can be arranged on the end of condenser to detect the temperature of condenser ends.
Service water machine carries out refrigerating operaton, cold water temperature starts to decline, and the temperature of condenser starts to rise, when the temperature of condenser reaches the first preset temperature threshold value, control module 3 judges to meet time-out condition, service water machine temporarily stops, then condenser is to quick heat radiating in air, and the temperature of condenser declines fast, when the temperature of condenser drop to be less than the first preset temperature threshold value time, control module 3 judges to meet restarts condition, and service water machine re-starts refrigerating operaton.So constantly circular flow, until the water temperature in tank is fallen too low very low, such as, is down to default target water temperature by water temperature.So namely, complete refrigeration by batch (-type) refrigeration control mode.
According to another specific embodiment of the present invention, operational factor can be the cooling time of service water machine, wherein, when being greater than the first preset time threshold when cooling, control module judges to meet time-out condition, and control module judges to meet and restarts condition when time out is greater than the second preset time threshold.Certainly, whether also can meet according to other condition judgment and restart condition, whether the temperature of such as condenser is less than preset temperature threshold value.
It should be noted that, by the first timer timing carried out to cooling time and by the second timer, timing carried out to time out.More specifically, when service water machine enters refrigeration mode, control module 3 can control the first timer and from 0, carry out timing with record-keeping system cool time; When service water machine suspends refrigeration, control module 3 can control the second timer and from 0, carry out timing to record time out.
First on service water machine, set the first preset time threshold, reset the second preset time threshold.Service water machine starts to carry out refrigerating operaton, cold water temperature starts to decline, when service water mechanism cold runs to the first preset time threshold, control module 3 judges to meet time-out condition, now condenser heat radiation reaches maximum, evaporating temperature cannot continue to reduce, service water machine temporarily stops, then condenser is to quick heat radiating in air, when the time out of service water machine reaches the second preset time threshold, best refrigerating state adjusted to by service water machine, and control module 3 meets restarts condition, re-starts refrigerating operaton.So constantly circular flow, until the water temperature in tank is fallen too low very low, such as, is down to default target water temperature by water temperature.So namely, complete refrigeration by batch (-type) refrigeration control mode.
According to another specific embodiment of the present invention, operational factor can be the cold water temperature of service water machine, and wherein, when reaching in multiple set water temperature when cold water temperature, control module judges to meet time-out condition.
It should be noted that, detection module 2 can comprise the second temperature sensor, and the second temperature sensor can be arranged on tank to detect cold water temperature.
Further, when time out is greater than the 3rd preset time threshold, control module 3 judgement meets and restarts condition.Certainly, whether also can meet according to other condition judgment and restart condition, whether the temperature of such as condenser is less than preset temperature threshold value.
It should be noted that, by the 3rd timer, timing is carried out to time out.More specifically, when service water machine suspends refrigeration, control module 3 can control the 3rd timer and from 0, carry out timing to record time out.
Service water machine starts to carry out refrigerating operaton, water temperature declines in multiple set water temperature, when normal-temperature water being dropped in multiple set water temperature, the heat radiation of condenser reaches maximum, and evaporating temperature cannot continue to decline, and control module 3 controls that service water machine is of short duration to shut down, then condenser is to quick heat radiating in air, when reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, and control module 3 judges to meet restarts condition.Then, service water machine re-starts refrigerating operaton, water temperature declines to another in multiple set water temperature again, when cold water temperature is dropped in multiple set water temperature another time, the heat radiation of condenser reaches maximum, and control module 3 controls that service water machine is of short duration to shut down, when reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, and service water machine carries out refrigerating operaton again.So constantly circular flow, until the water temperature in tank is fallen too low very low, such as, is down to default target water temperature by water temperature, so namely completes refrigeration by batch (-type) refrigeration control mode.
In addition, it should be noted that, multiple set water temperature by descending, can be declined until reach target water temperature by interval refrigeration cold water temperature gradually.For example, multiple set water temperature can comprise water temperature 1, water temperature 2 and water temperature 3, and wherein, water temperature 1 is greater than water temperature 2 and water temperature 2 is greater than water temperature 3, and water temperature 3 is target water temperature.Like this, after service water machine carries out refrigerating operaton, cold water temperature first declines to water temperature 1, and when cold water temperature reaches water temperature 1, service water machine temporarily stops.When reaching the 3rd preset time threshold when pausing, service water machine re-starts refrigerating operaton, and cold water temperature declines to water temperature 2, and when cold water temperature reaches water temperature 2, service water machine temporarily stops.When reaching the 3rd preset time threshold when pausing, service water machine carries out refrigerating operaton again, and cold water temperature declines to water temperature 3, and when cold water temperature reaches water temperature 3, cold water temperature reaches target water temperature, stops refrigeration.
According to another specific embodiment of the present invention, operational factor can be evaporator temperature and the cold water temperature of service water machine, and wherein, when the difference of evaporator temperature and cold water temperature is less than the 3rd preset temperature threshold value, control module judges to meet time-out condition.
It should be noted that, detection module 2 can comprise the second temperature sensor and three-temperature sensor, and three-temperature sensor can be installed on an evaporator and detect evaporator temperature, and the second temperature sensor can be arranged on tank and detect cold water temperature.
Further, when time out is greater than the 3rd preset time threshold, control module 3 judgement meets and restarts condition.Certainly, whether also can meet according to other condition judgment and restart condition, whether the temperature of such as condenser is less than preset temperature threshold value.
It should be noted that, by the 3rd timer, timing is carried out to time out.More specifically, when service water machine suspends refrigeration, control module 3 can control the 3rd timer and from 0, carry out timing to record time out.
Service water machine starts to carry out refrigerating operaton, cold water temperature starts to decline, and when the temperature difference between evaporator temperature and cold water temperature is less than the 3rd preset temperature threshold value, control module 3 judges to meet time-out condition, control service water machine temporarily to stop, then condenser is to quick heat radiating in air.When reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, control module 3 judges to meet restarts condition, then service water machine re-starts refrigerating operaton, cold water temperature continues to decline, when temperature difference between evaporator temperature and the cold water temperature after declining reaches the 3rd preset temperature threshold value, control module 3 controls service water machine and temporarily shuts down again.When reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, and service water machine carries out refrigerating operaton again.So constantly circular flow, until the water temperature in tank is fallen very low, such as, is down to default target water temperature by water temperature, so namely completes refrigeration by batch (-type) refrigeration control mode.
According to another specific embodiment of the present invention, operational factor can be condenser temperature and the environment temperature of service water machine, and wherein, when the difference of condenser temperature and environment temperature is less than the 4th preset temperature threshold value, control module judges to meet time-out condition.
It should be noted that, detection module 2 can comprise the first temperature sensor and the 4th temperature sensor, first temperature sensor can be arranged on to detect the temperature of condenser on condenser, and the 4th temperature sensor can be arranged on service water machine shell with testing environment temperature.More specifically, the first temperature sensor can be arranged on the end of condenser to detect the temperature of condenser ends.
Further, when time out is greater than the 3rd preset time threshold, control module 3 judgement meets and restarts condition.Certainly, whether also can meet according to other condition judgment and restart condition, whether the temperature of such as condenser is less than preset temperature threshold value.
It should be noted that, by the 3rd timer, timing is carried out to time out.More specifically, when service water machine suspends refrigeration, control module 3 can control the 3rd timer and from 0, carry out timing to record time out.
Service water machine starts to carry out refrigerating operaton, cold water temperature starts to decline, and the temperature of condenser starts to rise, when temperature difference between when between the temperature and environment temperature of condenser is less than the 4th preset temperature threshold value, control module 3 judges to meet time-out condition, control service water machine temporarily to stop, then condenser is to quick heat radiating in air, and the temperature of condenser declines fast.When reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to by service water machine, control module 3 judges to meet restarts condition, then, service water machine re-starts refrigerating operaton, and cold water temperature continues to decline, and the temperature of condenser continues to rise, when temperature difference between when between the temperature and environment temperature of condenser is less than the 4th preset temperature threshold value, service water machine temporarily shuts down again.When reaching the 3rd preset time threshold when pausing, best refrigerating state adjusted to again by service water machine, and service water machine carries out refrigerating operaton again.So constantly circular flow, until the water temperature in tank is fallen very low, such as, is down to default target water temperature by water temperature, so namely completes refrigeration by batch (-type) refrigeration control mode.
In other words, the temperature difference between condenser temperature and environment temperature can be made to remain at maximum temperature difference, be beneficial to service water machine dispel the heat to air, when the difference of condenser temperature and environment temperature is less than the 4th preset temperature threshold value, service water machine is of short duration stopping refrigerating operaton again, the heat of condenser and compressor is fallen apart outwardly fast, restarts refrigerating operaton when best refrigerating state adjusted to by service water machine, so constantly circular flow, until cold water temperature reaches ultralow target water temperature.
In addition, in other embodiments of the invention, control module 3 also can to combine the temperature of condenser, cooling time, cold water temperature, evaporator temperature with the difference of cold water temperature and the difference of condenser temperature and environment temperature simultaneously carries out refrigeration control, by the above-mentioned Rule of judgment of staggered use, obtain optimum refrigeration control, give full play to the effect of batch (-type) refrigeration control.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Describe and can be understood in flow chart or in this any process otherwise described or method, represent and comprise one or more for realizing the module of the code of the executable instruction of the step of specific logical function or process, fragment or part, and the scope of the preferred embodiment of the present invention comprises other realization, wherein can not according to order that is shown or that discuss, comprise according to involved function by the mode while of basic or by contrary order, carry out n-back test, this should understand by embodiments of the invention person of ordinary skill in the field.
In flow charts represent or in this logic otherwise described and/or step, such as, the sequencing list of the executable instruction for realizing logic function can be considered to, may be embodied in any computer-readable medium, for instruction execution system, device or equipment (as computer based system, comprise the system of processor or other can from instruction execution system, device or equipment instruction fetch and perform the system of instruction) use, or to use in conjunction with these instruction execution systems, device or equipment.With regard to this description, " computer-readable medium " can be anyly can to comprise, store, communicate, propagate or transmission procedure for instruction execution system, device or equipment or the device that uses in conjunction with these instruction execution systems, device or equipment.The example more specifically (non-exhaustive list) of computer-readable medium comprises following: the electrical connection section (electronic installation) with one or more wiring, portable computer diskette box (magnetic device), random access memory (RAM), read-only storage (ROM), erasablely edit read-only storage (EPROM or flash memory), fiber device, and portable optic disk read-only storage (CDROM).In addition, computer-readable medium can be even paper or other suitable media that can print described program thereon, because can such as by carrying out optical scanner to paper or other media, then carry out editing, decipher or carry out process with other suitable methods if desired and electronically obtain described program, be then stored in computer storage.
Should be appreciated that each several part of the present invention can realize with hardware, software, firmware or their combination.In the above-described embodiment, multiple step or method can with to store in memory and the software performed by suitable instruction execution system or firmware realize.Such as, if realized with hardware, the same in another embodiment, can realize by any one in following technology well known in the art or their combination: the discrete logic with the logic gates for realizing logic function to data-signal, there is the special IC of suitable combinational logic gate circuit, programmable gate array (PGA), field programmable gate array (FPGA) etc.
Those skilled in the art are appreciated that realizing all or part of step that above-described embodiment method carries is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, this program perform time, step comprising embodiment of the method one or a combination set of.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.Above-mentioned integrated module both can adopt the form of hardware to realize, and the form of software function module also can be adopted to realize.If described integrated module using the form of software function module realize and as independently production marketing or use time, also can be stored in a computer read/write memory medium.
The above-mentioned storage medium mentioned can be read-only storage, disk or CD etc.Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (14)
1. a refrigeration control method for service water machine, is characterized in that, comprises the following steps:
S1, the instruction of reception refrigeration, and enter refrigeration mode according to described refrigeration instruction;
The operational factor of S2, acquisition service water machine;
S3, judge whether satisfied time-out condition according to described operational factor;
If S4 meets described time-out condition, then suspend refrigeration; And
S5, judge whether to meet and restart condition further, restart condition if met, then carry out refrigeration repeated execution of steps S2-5, until meet the termination condition that freezes.
2. the refrigeration control method of service water machine as claimed in claim 1, it is characterized in that, described operational factor is the temperature of condenser in described service water machine, wherein, judge when the temperature of described condenser is greater than the first preset temperature threshold value to meet described time-out condition, and restart condition described in judging when the temperature of described condenser is less than the second preset temperature threshold value to meet.
3. the refrigeration control method of service water machine as claimed in claim 1, it is characterized in that, described operational factor is the cooling time of described service water machine, wherein, when described cooling time is greater than the first preset time threshold judge meet described time-out condition, and when time out is greater than the second preset time threshold judge meet described in restart condition.
4. the refrigeration control method of service water machine as claimed in claim 1, it is characterized in that, described operational factor is the cold water temperature of described service water machine, wherein, judges to meet described time-out condition when reaching in multiple set water temperature when described cold water temperature.
5. the refrigeration control method of service water machine as claimed in claim 1, it is characterized in that, described operational factor is evaporator temperature and the cold water temperature of described service water machine, wherein, judge to meet described time-out condition when the difference of described evaporator temperature and described cold water temperature is less than the 3rd preset temperature threshold value.
6. the refrigeration control method of service water machine as claimed in claim 1, it is characterized in that, described operational factor is condenser temperature and the environment temperature of described service water machine, wherein, judge to meet described time-out condition when the difference of described condenser temperature and environment temperature is less than the 4th preset temperature threshold value.
7. the refrigeration control method of the service water machine according to any one of claim 4-6, is characterized in that, when time out is greater than the 3rd preset time threshold judge meet described in restart condition.
8. a refrigeration control device for service water machine, is characterized in that, comprising:
Receiver module, for receiving the refrigeration instruction of user;
Detection module, for detecting the operational factor of service water machine;
Control module, refrigeration mode is entered for controlling described service water machine according to described refrigeration instruction, and obtain described operational factor, and judge whether satisfied time-out condition according to described operational factor, if meet described time-out condition, then suspend refrigeration, and judge whether further meet restart condition, restart condition if met, then carry out freezing and repeat to judge described operational factor whether meet described time-out condition and described in restart condition, until meet refrigeration termination condition.
9. the refrigeration control device of service water machine as claimed in claim 8, it is characterized in that, described operational factor is the temperature of condenser in described service water machine, wherein, when the temperature of described condenser is greater than the first preset temperature threshold value, described control module judges to meet described time-out condition, and when the temperature of described condenser is less than the second preset temperature threshold value described control module judge to meet described in restart condition.
10. the refrigeration control device of service water machine as claimed in claim 8, it is characterized in that, described operational factor is the cooling time of described service water machine, wherein, when described cooling time is greater than the first preset time threshold, described control module judges to meet described time-out condition, and when time out is greater than the second preset time threshold described control module judge to meet described in restart condition.
The refrigeration control device of 11. service water machines as claimed in claim 8, it is characterized in that, described operational factor is the cold water temperature of described service water machine, and wherein, when reaching in multiple set water temperature when described cold water temperature, described control module judges to meet described time-out condition.
The refrigeration control device of 12. service water machines as claimed in claim 8, it is characterized in that, described operational factor is evaporator temperature and the cold water temperature of described service water machine, wherein, when the difference of described evaporator temperature and described cold water temperature is less than the 3rd preset temperature threshold value, described control module judges to meet described time-out condition.
The refrigeration control device of 13. service water machines as claimed in claim 8, it is characterized in that, described operational factor is condenser temperature and the environment temperature of described service water machine, wherein, when the difference of described condenser temperature and environment temperature is less than the 4th preset temperature threshold value, described control module judges to meet described time-out condition.
The refrigeration control device of 14. service water machines according to any one of claim 11-13, is characterized in that, when time out is greater than the 3rd preset time threshold described control module judge to meet described in restart condition.
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