CN104501403A - Control system and method of water heater - Google Patents
Control system and method of water heater Download PDFInfo
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- CN104501403A CN104501403A CN201310288661.4A CN201310288661A CN104501403A CN 104501403 A CN104501403 A CN 104501403A CN 201310288661 A CN201310288661 A CN 201310288661A CN 104501403 A CN104501403 A CN 104501403A
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- temperature sensor
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Abstract
The invention belongs to the technical field of water heaters, and especially relates to a control system and method of a water heater. The control system comprises an environment temperature sensor for detecting the environment temperature, a coil pipe temperature sensor for detecting the real-time temperature of an evaporator coil pipe, a controller for receiving the temperature data and controlling the stopping or continuous operating of the water heater according to the comparison result, and an alarm for sending out an alarm signal when the water heater is controlled to stop by the controller. Water cooling of a water tank is prevented when a four-way valve is damaged, so that the water tank of a heat pump unit is effectively prevented from being damaged, furthermore the protection function of the water heater is increased and the after-sales maintenance costs are greatly saved.
Description
Technical field
The invention belongs to hot water machine field, particularly relate to a kind of hot water machine control system and hot water machine control method.
Background technology
Carry the heat pump water-heating machine of water tank, water tank is generally all used to do accumulation of energy, is operated, constantly deposited in water by the heat in environment, the water temperature in water tank is raised gradually, meet the daily demand of people by the circulation of each device in inside.
Under normal duty, the cross valve of hot water machine can commutate when defrost, and after having changed frost, cross valve commutates once more.But even damage once cross valve breaks down, then the thermal release of hot water likely water tank stored, in environment, becomes chilled water.Time serious, the water even in water tank can build-up ice, direct freezing water tank.At present, the cross valve quality that heat pump water-heating machine uses is uneven, because cross valve badly causes chilled water, even water is made ice, and the situation finally causing water tank to damage unrepairable happens occasionally.
Summary of the invention
The object of the present invention is to provide a kind of hot water machine control system and hot water machine control method; be intended to solve existing hot water machine easy chilled water, technical problem of even causing water tank to be damaged by frost when cross valve damages, hot water machine chilled water can be prevented and then improve the defencive function of hot water machine.
On the one hand, hot water machine control system provided by the invention, comprising:
Environment temperature sensor, for detecting the environment temperature of environment for use residing for hot water machine;
Coil temperature sensor, for detecting the real time temperature of evaporator coil;
Controller, connects described environment temperature sensor and coil temperature sensor simultaneously, the environment temperature received and evaporator coil real time temperature is compared, and controls hot water machine shut down or continue to run according to comparative result;
Alarm, is connected with described controller, and when described controller controls hot water machine shutdown, described alarm sends alarm signal.
On the other hand, the hot water machine control method of the above-mentioned hot water machine control system of tool provided by the invention, comprises the following steps:
Utilize environment temperature sensor to detect the environment temperature of environment for use residing for hot water machine, and utilize coil temperature sensor to detect the step of the real time temperature of evaporator coil;
By the step that the environment temperature received and evaporator coil real time temperature compare by controller;
If described environment temperature is less than described evaporator coil real time temperature, then controls hot water machine and shut down, send alarm signal by alarm simultaneously; If described environment temperature is not less than described evaporator coil real time temperature, then controls hot water machine and continue to run, and repeat the above-mentioned step environment temperature received and evaporator coil real time temperature compared.
According to hot water machine control system provided by the invention and hot water machine control method; water tank chilled water when cross valve damages can be prevented; can the water tank of available protecting source pump not damaged, and then improve the defencive function of hot water machine, greatly save after-sales service cost.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the hot water machine control system that first embodiment of the invention provides;
Fig. 2 is the structured flowchart of the hot water machine control system that second embodiment of the invention provides;
Fig. 3 is the structured flowchart of the hot water machine control system that third embodiment of the invention provides;
Fig. 4 is the structured flowchart of the controller that the embodiment of the present invention provides;
Fig. 5 is the realization flow figure of the hot water machine control method that the embodiment of the present invention provides.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Fig. 1 is the structured flowchart of the hot water machine control system that first embodiment of the invention provides; For convenience of explanation, illustrate only part related to the present embodiment, as shown in the figure:
A control system for hot water machine, comprising: environment temperature sensor 11, coil temperature sensor 12, controller 10 and alarm 20; Wherein, environment temperature sensor 11, coil temperature sensor 12 and alarm 20 connect with controller 10 respectively, and environment temperature sensor 11 and coil temperature sensor 12 are respectively used to detect and obtain the real time temperature of evaporator coil on the environment temperature of environment for use residing for hot water machine and hot water machine and send controller 10 to; The environment temperature received and evaporator coil real time temperature compare by controller 10, control hot water machine shut down or continue to run according to comparative result.
Generally speaking; when environment temperature is less than the real time temperature of evaporator coil; then judge hot water machine operation irregularity, namely may be in chilled water, this Time Controller 10 can according to this anomaly ratio comparatively output control hot water machine shut down, the alarm 20 simultaneously also by connecting with it sends alarm signal.Alarm signal can be LED abnormal show or buzzer etc., is only example herein, and is not used in the classification and form that limit alarm signal.If environment temperature is greater than the real time temperature of evaporator coil always, then infer that hot water machine is working properly, control it and continue to run.
Fig. 2 is the structured flowchart of the hot water machine control system that second embodiment of the invention provides; For convenience of explanation, illustrate only part related to the present embodiment, as shown in the figure:
The hot water machine control system provided with the first embodiment in above-mentioned Fig. 1 in contrast, the control system that this second embodiment provides, except comprising environment temperature sensor 11, coil temperature sensor 12, controller 10 and alarm 20, also comprises cooling-water temperature sensor 21; The number of this cooling-water temperature sensor 21 can be one or more, is also all connected with controller 10, also sends to controller 10 for the real-time water temperature detected in water tank; After controller 10 receives real-time water temperature, comparing according to the pre-conditioned water temperature to receiving, controlling hot water machine according to comparative result and shut down or continue to run.Generally speaking; according to first latter two temperature value that cooling-water temperature sensor 21 detects; if a certain preset time period is also low at first temperature value at rear temperature value ratio; just substantially can judge that hot water machine is in chilled water; this Time Controller 10 can control hot water machine according to this comparative result and shut down, and the alarm 20 simultaneously also by connecting with it sends alarm signal.Alarm signal can be LED abnormal show or buzzer etc. equally.If posterior water temperature is greater than in first water temperature always, then infer that hot water machine is working properly, control it and continue to run.
The hot water machine control system that this second embodiment provides adds a set of real-time temperature detector on the basis of the first embodiment, namely be utilize one or more cooling-water temperature sensor 21 to detect in real time water temperature in water tank, according to the change of water temperature judge hot water machine whether operation irregularity, whether in chilled water.Even if environment temperature sensor 11 and coil temperature sensor 12 fail, the detection effect that cooling-water temperature sensor 21 can also be brought into normal play, the real-time water temperature that controller 10 directly obtains according to cooling-water temperature sensor 21, judge that whether hot water machine is working properly according to variations in temperature, improve the reliability of detection and control.
Fig. 3 is the structured flowchart of the hot water machine control system that third embodiment of the invention provides; For convenience of explanation, illustrate only part related to the present embodiment, as shown in the figure:
The hot water machine control system provided with the first embodiment in above-mentioned Fig. 1 in contrast, the control system that 3rd embodiment provides, except comprising environment temperature sensor 11, coil temperature sensor 12, controller 10 and alarm 20, also comprises water tank ice-forming processes outside pipes sensor 31 and water tank outlet refrigerant temperature sensor 32; Described water tank ice-forming processes outside pipes sensor 31 is also all connected with controller 10 with water tank outlet refrigerant temperature sensor 32, for detecting the real time temperature of the import of water tank refrigerant and water tank refrigerant exit and sending to controller 10; The refrigerant import that controller 10 receives and the real time temperature of refrigerant exit compare, and control hot water machine shut down or continue to run according to comparative result.Generally speaking, if water tank ice-forming processes outside pipes is less than water tank outlet refrigerant temperature, be in chilled water with regard to deducibility hot water machine, this Time Controller 10 can control hot water machine according to this comparative result and shut down, and the alarm 20 simultaneously also by connecting with it sends alarm signal.
Similar with the second embodiment, the hot water machine control system that this 3rd embodiment provides adds water tank ice-forming processes outside pipes sensor 31 and water tank outlet refrigerant temperature sensor 32 on the basis of the first embodiment, namely be utilize water tank ice-forming processes outside pipes sensor 31 and water tank outlet refrigerant temperature sensor 32 to detect ice-forming processes outside pipes and outlet refrigerant temperature in real time, the variations in temperature imported and exported according to refrigerant judge hot water machine whether operation irregularity, whether in chilled water.Even if environment temperature sensor 11 and coil temperature sensor 12 fail, the detection effect that water tank ice-forming processes outside pipes sensor 31 and water tank outlet refrigerant temperature sensor 32 can also be brought into normal play, the variations in temperature that controller 10 can be imported and exported according to refrigerant judges that whether hot water machine is working properly.
Certainly, the control system of hot water machine provided by the invention, can also comprise simultaneously: environment temperature sensor 11, coil temperature sensor 12, cooling-water temperature sensor 21, water tank ice-forming processes outside pipes sensor 31 and water tank outlet refrigerant temperature sensor 32, controller 10 and alarm 20.Above-mentioned all kinds of temperature sensor is all connected with controller 10; detect and obtain corresponding temperature data and send to controller 10; controller 10 compares differentiation on a preset condition based according to all kinds of temperature datas received, and controls hot water machine shut down and send alarm signal by alarm 20 or continue operation, repeated obtain temperature data according to comparative result.Like this, can three class supervising devices be passed through, the work of heat pump water-heating machine be controlled simultaneously, improve the safety coefficient of monitoring, reduce fault rate.
Further, according to the hot water machine control system that above-mentioned several embodiment provides, when specific implementation, the structure of controller 10 as shown in Figure 4, can comprise:
Data acquisition module 101, for receiving the temperature data of all kinds of temperature sensor feedback and transmission;
Relatively discrimination module 102, for comparing differentiation on a preset condition based by said temperature data;
Control treatment module 103, controls hot water machine according to different comparative results and shuts down or continue to run;
Prompting warning module 104, when controlling hot water machine and shutting down, sends alarm signal by alarm 20.
For a person skilled in the art, it is readily understood that, in various embodiments, the module composition of controller has corresponding difference: such as in a first embodiment, and data acquisition module 101 is the temperature datas transmitted for reception environment temperature sensor 11 and coil temperature sensor 12; Relatively discrimination module 102 is for comparing differentiation on a preset condition based by environment temperature and evaporator coil real time temperature, and control treatment module 103 controls hot water machine according to different comparative results and shuts down or continue to run.And in a second embodiment, data acquisition module 101 is except the temperature data transmitted for reception environment temperature sensor 11 and coil temperature sensor 12, the real-time water temperature that also needs to receive the transmission of each cooling-water temperature sensor 21; Relatively discrimination module 102 except for environment temperature and evaporator coil real time temperature are compared on a preset condition based differentiate outer, also need to compare according to the pre-conditioned real-time water temperature to receiving, control treatment module 103 controls hot water machine according to two different comparative results equally and shuts down or continue operation.That is, as long as have one to meet control hot water machine halt condition, control treatment module 103 all can control hot water machine and shut down, fully to realize the object preventing hot water machine chilled water.For the 3rd embodiment, data acquisition module 101 and compare discrimination module 102 and all need to adjust accordingly, just repeats no more at this.
Fig. 5 is the realization flow figure of the hot water machine control method that the embodiment of the present invention provides; For convenience of explanation, again illustrate only part related to the present embodiment.It should be noted that, be the workflow of all kinds of temperature sensor realized in a flow chart shown in this figure.In fact, according to the hot water machine control system that above-mentioned different embodiment provides, the realization flow of this control method is also correspondingly only corresponding with certain the several step in diagram.As shown in Figure 5:
In step S500, hot water machine start runs.
In the hot water machine control method that the embodiment of the present invention provides, necessary condition is that hot water machine is started shooting.This time period run in advance can according to factor settings such as the concrete model of hot water machine and environments for use.Next, detection and the acquisition of carrying out all kinds of temperature data according to the classification of pre-configured temperature sensor is only.
First aspect:
In step S501, environment temperature sensor detects the environment temperature of environment for use residing for hot water machine, and coil temperature sensor detects the real time temperature of evaporator coil.
In this step, environment temperature sensor and coil temperature sensor detect respectively, obtain the real time temperature of environment temperature and evaporator coil, and send to controller.
In step S502, the environment temperature received and evaporator coil real time temperature compare by controller: when environment temperature is less than evaporator coil real time temperature, enter step S800; If environment temperature is not less than evaporator coil real time temperature, then controls hot water machine and continue to run, and repeat step S501.
In this step, the environment temperature received and evaporator coil real time temperature compare by controller: if environment temperature is less than evaporator coil real time temperature, then can infer hot water machine operation irregularity, namely may be in chilled water, enter step S800.If environment temperature is not less than evaporator coil real time temperature, then controls hot water machine and continue to run, and repeat the step of above-mentioned testing environment temperature and evaporator coil real time temperature.
In step S800, control hot water machine and shut down, send alarm signal by alarm simultaneously.
On the other hand:
In step s 601, cooling-water temperature sensor detects the real-time water temperature in water tank.
In this step, detect the real-time water temperature in water tank by least one cooling-water temperature sensor, and be transferred to controller.
In step S602, controller receives real-time water temperature, when real-time water temperature is lower than the first preset temperature T1, starts timing and continues to run.
In this step, with a first preset temperature T1 for critical value, when real-time water temperature is lower than the first preset temperature T1, start timing.As preferably, the first preset temperature T1 can be the arbitrary temperature between 2 DEG C ~ 10 DEG C.Suppose that this first preset temperature T1 is 5 DEG C, then, when the real-time water temperature detected is lower than 5 DEG C, controller will start timing.
In step S603, if the real-time water temperature run after a Preset Time have decreased to lower than the second preset temperature T2, then enter step S800; If real-time water temperature is now higher than the second preset temperature T2, then controls hot water machine and continue to run, and repeat step S601.
In this step, the real-time water temperature that self-inspection measures starts timing rise lower than the first preset temperature T1, controller, after a Preset Time, if the real-time water temperature obtained have decreased to lower than the second preset temperature T2, then enters step S800.It should be noted that, known according to " decline " of real-time water temperature, the second preset temperature T2 here is obviously less than the first preset temperature T1, if water temperature is more and more lower, then deducibility hot water machine operation irregularity, namely may be in chilled water.As preferably, the second preset temperature T2 and the first preset temperature T1 meets relational expression: T2=T1-△ T, △ T are and the arbitrary temperature between the first preset temperature T1 1 DEG C accordingly ~ 9 DEG C.That is, the second preset temperature T2 pre-sets according to the concrete environment for use and parameter etc. of hot water machine.
In step S800, control hot water machine and shut down, send alarm signal by alarm simultaneously.
The third aspect:
In step s 701, water tank ice-forming processes outside pipes sensor and water tank outlet refrigerant temperature sensor detect the real time temperature of refrigerant import and refrigerant exit respectively.
In step S702, the real time temperature of the refrigerant import received and refrigerant exit compares by controller: when water tank ice-forming processes outside pipes is less than water tank outlet refrigerant temperature, enter step S800; If water tank ice-forming processes outside pipes is not less than water tank outlet refrigerant temperature, then controls hot water machine and continue to run, and repeat step S701.
In step S800, control hot water machine and shut down, send alarm signal by alarm simultaneously.
Flow process according to above-mentioned several respects describes; can learn, no matter be after temperature data in which step compares differentiation, as long as be inferred as hot water machine operation irregularity, may in chilled water; controller will control hot water machine and shut down, and sends alarm signal by alarm simultaneously.Alarm signal can be LED abnormal show or buzzer etc.
According to hot water machine control system provided by the invention and hot water machine control method; water tank chilled water when cross valve damages can be prevented; can the water tank of available protecting source pump not damaged; particularly when being controlled by a few cover checkout gear simultaneously; more improve the defencive function of hot water machine, greatly save after-sales service cost.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, although with reference to previous embodiment to invention has been comparatively detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments or carry out equivalent replacement to wherein portion of techniques feature.All any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a hot water machine control system, is characterized in that, described control system comprises:
Environment temperature sensor, for detecting the environment temperature of environment for use residing for hot water machine;
Coil temperature sensor, for detecting the real time temperature of evaporator coil;
Controller, connects described environment temperature sensor and coil temperature sensor simultaneously, the environment temperature received and evaporator coil real time temperature is compared, and controls hot water machine shut down or continue to run according to comparative result;
Alarm, is connected with described controller, and when described controller controls hot water machine shutdown, described alarm sends alarm signal.
2. hot water machine control system as claimed in claim 1, it is characterized in that, described control system also comprises:
At least one cooling-water temperature sensor, is connected with described controller, for detecting the real-time water temperature in water tank;
Described controller compares according to the pre-conditioned water temperature to receiving, and controls hot water machine shut down or continue to run according to comparative result.
3. hot water machine control system as claimed in claim 1, it is characterized in that, described control system also comprises:
Water tank ice-forming processes outside pipes sensor and water tank outlet refrigerant temperature sensor, be connected with described controller respectively, for detecting the real time temperature of refrigerant import and refrigerant exit;
The real time temperature of the refrigerant import received and refrigerant exit compares by described controller, controls hot water machine shut down or continue to run according to comparative result.
4. the hot water machine control system as described in any one of claim 1-3, is characterized in that, described controller comprises:
Data acquisition module, for receiving the temperature data of each temperature sensor feedback;
Relatively discrimination module, for comparing differentiation on a preset condition based by temperature data;
Control treatment module, controls hot water machine according to different comparative results and shuts down or continue to run;
Prompting warning module, when controlling hot water machine and shutting down, sends alarm signal by alarm.
5. a hot water machine control method for hot water machine control system described in tool claim 1, is characterized in that, described control method comprises:
Utilize environment temperature sensor to detect the environment temperature of environment for use residing for hot water machine, and utilize coil temperature sensor to detect the step of the real time temperature of evaporator coil;
By the step that the environment temperature received and evaporator coil real time temperature compare by controller;
If described environment temperature is less than described evaporator coil real time temperature, then controls hot water machine and shut down, send alarm signal by alarm simultaneously; If described environment temperature is not less than described evaporator coil real time temperature, then controls hot water machine and continue to run, and repeat the step of above-mentioned testing environment temperature and evaporator coil real time temperature.
6. hot water machine control method as claimed in claim 5, it is characterized in that, described control method also comprises:
Cooling-water temperature sensor is utilized to detect the step of the real-time water temperature in water tank;
Utilize controller to receive real-time water temperature, when described real-time water temperature is lower than the first preset temperature T1, start timing and the step of continuation operation;
If the real-time water temperature run after a Preset Time have decreased to lower than the second preset temperature T2, then control hot water machine and shut down, send alarm signal by alarm simultaneously; If real-time water temperature is now higher than the second preset temperature T2, then controls hot water machine and continue to run, and repeat the step of the real-time water temperature of above-mentioned detection.
7. hot water machine control method as claimed in claim 6, it is characterized in that, described first preset temperature T1 is the arbitrary temperature between 2 DEG C ~ 10 DEG C; Described second preset temperature T2=T1-△ T, △ T are and the arbitrary temperature between the first preset temperature T1 1 DEG C accordingly ~ 9 DEG C.
8. hot water machine control method as claimed in claim 5, it is characterized in that, described control method also comprises:
Water tank ice-forming processes outside pipes sensor and water tank outlet refrigerant temperature sensor is utilized to detect the step of the real time temperature of refrigerant import and refrigerant exit respectively;
Utilize the step that the water tank ice-forming processes outside pipes received and water tank outlet refrigerant temperature compare by controller;
If described water tank ice-forming processes outside pipes is less than described water tank outlet refrigerant temperature, then controls hot water machine and shut down, send alarm signal by alarm simultaneously; If described water tank ice-forming processes outside pipes is not less than described water tank outlet refrigerant temperature, then controls hot water machine and continue to run, and repeat the step of above-mentioned detection water tank ice-forming processes outside pipes and water tank outlet refrigerant temperature.
9. the hot water machine control method as described in any one of claim 5-8, is characterized in that, before all kinds of temperature sensor detects corresponding temperature data respectively, hot water machine need first be started shooting operation.
10. hot water machine control method as claimed in claim 9, it is characterized in that, described alarm signal comprises LED abnormal show and/or sounds a buzzer.
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| CN201310288661.4A CN104501403B (en) | 2013-07-09 | 2013-07-09 | Hot water machine control system and hot water machine control method |
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| CN201310288661.4A CN104501403B (en) | 2013-07-09 | 2013-07-09 | Hot water machine control system and hot water machine control method |
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| CN104501403B (en) | 2018-05-08 |
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