CN107144063B - Ice machine and ice blockage detection method and device - Google Patents
Ice machine and ice blockage detection method and device Download PDFInfo
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- CN107144063B CN107144063B CN201710494874.0A CN201710494874A CN107144063B CN 107144063 B CN107144063 B CN 107144063B CN 201710494874 A CN201710494874 A CN 201710494874A CN 107144063 B CN107144063 B CN 107144063B
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C1/00—Producing ice
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2500/00—Problems to be solved
- F25C2500/08—Sticking or clogging of ice
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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
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C2600/00—Control issues
- F25C2600/04—Control means
Abstract
The embodiment of the invention provides an ice maker, and a method and a device for detecting ice blockage, and relates to the field of ice making systems. According to the ice machine and the ice blockage detection method and device, the pressure detection values of different positions in the ice machine are collected, the difference value between the pressure detection values and the pressure preset value is calculated, whether the difference value meets the preset condition is judged, whether ice blockage exists in the ice machine can be clearly and rapidly known, meanwhile, the position where the ice blockage occurs can be accurately judged, the ice machine can judge and solve the ice blockage, the speed of the ice machine is greatly improved, the running state of the ice machine is safer, and the service life of the ice machine is prolonged.
Description
Technical Field
The invention relates to the field of ice making systems, in particular to an ice maker, and an ice blockage detection method and device.
Background
The ice maker is a device for producing ice in an energized state by using water as a carrier by using a refrigerating system, and is a refrigerating mechanical device for producing ice after water is cooled by a refrigerant of the refrigerating system through an evaporator.
The existing ice making machine has the following disadvantages: firstly, the ice blockage position cannot be accurately determined, so that the ice blockage problem cannot be rapidly solved, and extra burden is brought to the ice maker; secondly, detecting the slow time lag of the reaction, and can not timely acquire whether ice blockage occurs in the ice maker; finally, the detection precision is low, and the ice blockage degree cannot be accurately determined, so that whether to operate an ice removal program or not cannot be determined according to the ice blockage degree, and the energy waste is possibly caused.
Disclosure of Invention
The invention aims to provide an ice maker and an ice blockage detection method and device, which are used for solving the problems that the ice blockage reaction of the existing ice maker is too slow and the ice blockage position cannot be accurately judged.
In order to achieve the above object, the technical scheme adopted by the embodiment of the invention is as follows:
in a first aspect, an embodiment of the present invention provides an ice blockage detection method, where the ice blockage detection method includes:
receiving a first detection pressure value transmitted by a first pressure sensor at the inlet of a plate heat exchanger of an ice maker, a second detection pressure value transmitted by a second pressure sensor at the outlet of the plate heat exchanger, a third detection pressure value transmitted by a third pressure sensor at the inlet of an ice slurry generator of the ice maker and a fourth detection pressure value transmitted by a fourth pressure sensor at the outlet of the ice slurry generator;
calculating a first difference value formed by the first detection pressure value and a first preset pressure value, a second difference value formed by the second detection pressure value and a second preset pressure value, a third difference value formed by the third detection pressure value and a third preset pressure value and a fourth difference value formed by the fourth detection pressure value and a fourth preset pressure value;
Judging whether the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions or not;
and if the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions, generating an ice-releasing instruction, wherein the ice-releasing instruction carries ice-releasing position information.
In a second aspect, an embodiment of the present invention further provides an ice blockage detection apparatus, where the ice blockage detection apparatus includes:
the data receiving unit is used for receiving a first detection pressure value transmitted by a first pressure sensor at the inlet of a plate heat exchanger of an ice maker, a second detection pressure value transmitted by a second pressure sensor at the outlet of the plate heat exchanger, a third detection pressure value transmitted by a third pressure sensor at the inlet of an ice slurry generator of the ice maker and a fourth detection pressure value transmitted by a fourth pressure sensor at the outlet of the ice slurry generator;
the calculating unit is used for calculating a first difference value formed by the first detection pressure value and a first preset pressure value, a second difference value formed by the second detection pressure value and a second preset pressure value, a third difference value formed by the third detection pressure value and a third preset pressure value and a fourth difference value formed by the fourth detection pressure value and a fourth preset pressure value;
The judging unit is used for judging whether the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions or not;
and the ice-removing instruction generating unit is used for generating an ice-removing instruction if the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions, wherein the ice-removing instruction carries ice-removing position information.
In a third aspect, an embodiment of the present invention further provides an ice maker, where the ice maker includes a plate heat exchanger, an ice slurry generator, a first pressure sensor, a second pressure sensor, a third pressure sensor, a fourth pressure sensor, an ice-breaking module, and a processor, where the processor is electrically connected to the plate heat exchanger, the ice slurry generator, the first pressure sensor, the second pressure sensor, the third pressure sensor, the fourth pressure sensor, and the ice-breaking module, and the plate heat exchanger is connected to the ice slurry generator;
the first pressure sensor is arranged at the inlet of the plate heat exchanger and is used for detecting a first detection pressure value at the inlet of the plate heat exchanger;
The second pressure sensor is arranged at the outlet of the plate heat exchanger and is used for detecting a second detection pressure value at the outlet of the plate heat exchanger;
the third pressure sensor is arranged at the inlet of the ice slurry generator and is used for detecting a third detection pressure value at the inlet of the ice slurry generator;
the fourth pressure sensor is arranged at the outlet of the ice slurry generator and is used for detecting a fourth detection pressure value at the outlet of the ice slurry generator;
the processor is used for calculating a first difference value formed by the first detection pressure value and a first preset pressure value, a second difference value formed by the second detection pressure value and a second preset pressure value, a third difference value formed by the third detection pressure value and a third preset pressure value and a fourth difference value formed by the fourth detection pressure value and a fourth preset pressure value, judging whether the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions, and if so, generating an ice-releasing instruction to control the ice-releasing module to release ice.
According to the ice maker, the ice blockage detection method and the ice blockage detection device, the difference value between the pressure detection value and the pressure preset value is calculated through collecting the pressure detection values at different positions in the ice maker, whether the difference value meets the preset condition is judged, whether the ice blockage condition exists in the ice maker can be clearly and rapidly known, meanwhile, the position where the ice blockage occurs can be accurately judged, the ice maker judging and ice blockage solving speed is greatly improved, the running state of the ice maker is safer, and the service life of the ice maker is prolonged.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 shows a block diagram of circuit connections of an ice maker according to an embodiment of the present invention.
Fig. 2 shows a functional block diagram of the ice blockage detection device according to the embodiment of the invention.
Fig. 3 shows a flowchart of an ice blockage detection method according to a second embodiment of the present invention.
Fig. 4 shows a flow chart of a method for solving the problem of light micro ice blockage at a plate heat exchanger according to a second embodiment of the invention.
Fig. 5 shows a flow chart of a method for solving light micro ice blockage at an ice slurry generator according to a second embodiment of the present invention.
Fig. 6 shows a flow chart of a method for solving light micro ice blockage at a system ice slurry pipeline according to a second embodiment of the invention.
Fig. 7 shows a flow chart of a method for solving severe ice blockage at a plate heat exchanger according to a second embodiment of the invention.
Fig. 8 shows a flow chart of a method for solving severe ice blockage at an ice slurry generator according to a second embodiment of the present invention.
Fig. 9 shows a flow chart of a method for solving severe ice blockage at a system ice slurry duct according to a second embodiment of the present invention.
Fig. 10 shows a flowchart of an ice jam detection method according to a fourth embodiment of the present invention.
Icon: 100-an ice maker; a 101-processor; 102-a memory controller; 103-memory; 104-plate heat exchanger; 105-an ice slurry generator; 106-a first pressure sensor; 107-a second pressure sensor; 108-a third pressure sensor; 109-fourth pressure sensor; 110-a temperature sensor; 111-an ice-breaking module; 200-ice blockage detection device; 201-a data receiving unit; 202-a computing unit; 203-a judging unit; 204-an icebreaking instruction generation unit.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
Referring to fig. 1, fig. 1 shows a functional block diagram of an ice maker 100 applicable to the ice jam detection method and apparatus according to the embodiment of the present invention. As shown in fig. 1, the ice maker 100 includes an ice jam detection device 200, a memory 103, a memory controller 102, a processor 101, a plate heat exchanger 104, an ice slurry generator 105, a first pressure sensor 106, a second pressure sensor 107, a third pressure sensor 108, a fourth pressure sensor 109, a temperature sensor 110, and an ice detachment module 111. The components communicate with each other via one or more communication buses/signal lines. The ice jam detection assembly 200 includes at least one software functional module executed by the processor 101.
The processor 101 is electrically connected to the storage controller 102, the plate heat exchanger 104, the ice slurry generator 105, the first pressure sensor 106, the second pressure sensor 107, the third pressure sensor 108, the fourth pressure sensor 109, the temperature sensor 110, and the ice-breaking module 111, respectively.
The memory 103 may be used to store software programs and units, such as program instructions/units corresponding to the ice blockage detection apparatus 200 and method according to the embodiments of the present invention, and the processor 101 executes the software programs and units stored in the memory 103, thereby performing various functional applications and data processing, such as the ice blockage detection method provided by the embodiments of the present invention.
The memory 103 may include high-speed random access memory 103, and may also include non-volatile memory 103, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory 103. Access to the memory 103 by the processor 101, as well as other possible components, may be under the control of the memory controller 102.
The first pressure sensor 106 is disposed at the inlet of the plate heat exchanger 104 and is configured to detect a first detected pressure value at the inlet of the plate heat exchanger 104.
The second pressure sensor 107 is disposed at the outlet of the plate heat exchanger 104 and is configured to detect a second detected pressure value at the outlet of the plate heat exchanger 104.
The third pressure sensor 108 is disposed at an inlet of the ice slurry generator 105, and is configured to detect a third detected pressure value at the inlet of the ice slurry generator 105.
The fourth pressure sensor 109 is disposed at the outlet of the ice slurry generator 105, and is configured to detect a fourth detected pressure value at the outlet of the ice slurry generator 105.
The temperature sensor 110 is disposed at an outlet of the ice slurry generator 105, and detects a temperature detection value at the outlet of the ice slurry generator 105.
The ice-releasing module 111 is for running an ice-releasing program to remove ice inside the ice maker 100 that affects the normal operation of the ice maker 100, and the ice-releasing module 111 includes a heat exchanger, a glycol pump, etc.
The processor 101 is configured to receive the first detected pressure value, the second detected pressure value, the third detected pressure value, and the fourth detected pressure value.
Specifically, the processor 101 is configured to calculate a first difference value formed by the first detected pressure value and the first preset pressure value, a second difference value formed by the second detected pressure value and the second preset pressure value, a third difference value formed by the third detected pressure value and the third preset pressure value, and a fourth difference value formed by the fourth detected pressure value and the fourth preset pressure value, and determine whether the first difference value, the second difference value, the third difference value, and the fourth difference value satisfy preset conditions, and if so, generate an ice-releasing instruction to control the ice-releasing module 111 to operate an ice-releasing program.
First embodiment
Referring to fig. 2, a functional block diagram of an ice jam detection device 200 according to a preferred embodiment of the invention is shown. The ice jam detection device 200 is applied to the ice maker 100, and the ice jam detection device 200 includes a data receiving unit 201, a calculating unit 202, a judging unit 203, and an ice removal instruction generating unit 204.
The data receiving unit 201 is configured to receive a first detected pressure value transmitted by the first pressure sensor 106 at the inlet of the plate heat exchanger 104 of the ice maker 100, a second detected pressure value transmitted by the second pressure sensor 107 at the outlet of the plate heat exchanger 104, a third detected pressure value transmitted by the third pressure sensor 108 at the inlet of the ice slurry generator 105 of the ice maker 100, and a fourth detected pressure value transmitted by the fourth pressure sensor 109 at the outlet of the ice slurry generator 105.
It should be noted that, the first detected pressure value, the second detected pressure value, the third detected pressure value, and the fourth detected pressure value are all pressure values collected by the real-time operation of the ice maker 100.
The calculating unit 202 is configured to calculate a first difference between the first detected pressure value and a first preset pressure value, a second difference between the second detected pressure value and a second preset pressure value, a third difference between the third detected pressure value and a third preset pressure value, and a fourth difference between the fourth detected pressure value and a fourth preset pressure value.
The first preset pressure value is a pressure value at an inlet of the plate heat exchanger 104 when the ice maker 100 is operating normally, the second preset pressure value is a pressure value at an outlet of the plate heat exchanger 104 when the ice maker 100 is operating normally, the third preset pressure value is a pressure value at an inlet of the ice slurry generator 105 when the ice maker 100 is operating normally, and the fourth preset pressure value is a pressure value at an outlet of the ice slurry generator 105 when the ice maker 100 is operating normally.
Setting a first preset pressure value, a second preset pressure value, a third preset pressure value and a fourth preset pressure value as P1, P2, P3 and P4 respectively; let the first, second, third and fourth detected pressure values be P1', P2', P3', P4', respectively.
The first difference Δp1=p1' -p1; a second difference Δp2=p2' -p2; a third difference Δp3=p3' -p3; fourth difference Δp4=p4' -P4.
The determining unit 203 is configured to determine whether the first difference, the second difference, the third difference, and the fourth difference meet a preset condition.
By determining whether the first difference, the second difference, the third difference, and the fourth difference satisfy a preset condition, the ice maker 100 can learn about its current operation, that is: whether or not ice blockage occurs, how the ice blockage is, and the location where the ice blockage occurs.
Specifically, in the present embodiment, the ice maker 100 is set with 6 preset conditions to distinguish the position where ice blockage occurs, the ice blockage situation.
First kind:
the determining unit 203 is configured to determine whether the first difference is greater than or equal to a first threshold and whether the second difference, the third difference, and the fourth difference are all greater than 0 and less than the first threshold.
When the first difference is greater than or equal to a first threshold, and the second difference, the third difference, and the fourth difference are all greater than 0 and less than the first threshold, that is Δp1 is greater than or equal to K1 and 0 < Δp2/Δp3/Δp4 < K1, it indicates that the plate heat exchanger 104 of the ice machine 100 is slightly ice blocked.
Wherein K1 is a first threshold, which is a difference between a pressure value when the ice maker 100 is slightly blocked and a pressure value when the ice maker 100 is operating normally, and is used to help the ice maker 100 determine whether ice blocking occurs.
In addition, the determining unit 203 is further configured to determine whether a time for maintaining the state in which the first difference is greater than or equal to the first threshold is greater than a preset time.
In general, when the plate heat exchanger 104 is slightly blocked, the ice maker 100 may remove the slightly blocked condition by flowing cooling water without any operation, so by determining whether the time for maintaining the state in which the first difference is greater than or equal to the first threshold is greater than the preset time, the ice maker 100 may confirm whether the ice blocking condition occurring at the plate heat exchanger 104 within the preset time is reduced, and if so, does not enter the ice removing process; if the ice blockage is not alleviated, an ice removing operation is performed.
Second kind:
the determining unit 203 is configured to determine whether the third difference is greater than or equal to a first threshold and whether the first difference, the second difference, and the fourth difference are all greater than 0 and less than the first threshold.
When the third difference is greater than or equal to the first threshold, and the first difference, the second difference, and the fourth difference are all greater than 0 and less than the first threshold, that is, when Δp3 is greater than or equal to K1 and 0 < Δp1/Δp2/Δp4 < K1, it indicates that the ice slurry generator 105 of the ice machine 100 is slightly blocked.
In addition, the determining unit 203 is further configured to determine whether a time for maintaining the state in which the third difference is greater than or equal to the third threshold is greater than a preset time.
In general, when the ice slurry generator 105 is slightly blocked, the ice maker 100 may remove the slightly blocked condition by flowing cooling water without any operation, so by judging whether the time for maintaining the state in which the third difference is greater than or equal to the third threshold is greater than the preset time, the ice maker 100 may confirm whether the ice blocking condition occurring at the ice slurry generator 105 is reduced within the preset time, and if so, the ice removing process is not entered; if the ice blockage is not alleviated, an ice removing operation is performed.
Third kind:
the determining unit 203 is configured to determine whether the fourth difference is greater than or equal to a first threshold and whether the first difference, the second difference, and the third difference are all greater than 0 and less than the first threshold.
When the fourth difference is greater than or equal to a first threshold, and the first difference, the second difference and the third difference are all greater than 0 and less than the first threshold, that is, when Δp4 is greater than or equal to K1 and 0 < Δp1/Δp2/Δp3 < K1, it indicates that a slight ice blockage occurs in the system ice slurry pipeline of the ice machine 100.
In addition, in the case of the optical fiber, the determining unit 203 is further configured to determine whether a time for maintaining the state in which the fourth difference is greater than or equal to the first threshold is greater than a preset time.
In general, when the system ice slurry pipe is slightly blocked, the ice maker 100 may remove the slightly blocked condition by flowing cooling water without any operation, so by judging whether the time for maintaining the state in which the fourth difference value is greater than or equal to the first threshold value is greater than the preset time, the ice maker 100 may confirm whether the ice blocking condition occurring at the system ice slurry pipe is reduced within the preset time, and if so, the ice maker 100 does not enter the ice removing process; if the ice blockage is not alleviated, an ice removing operation is performed.
Fourth kind:
the determining unit 203 is configured to determine whether the second difference, the third difference, and the fourth difference are all greater than 0 and less than the second threshold, and whether the first difference is greater than or equal to the second threshold.
When the second difference, the third difference and the fourth difference are all greater than 0 and less than the second threshold, and the first difference is greater than or equal to the second threshold, that is, when Δp1 is greater than or equal to K2 and Δp2/Δp3/Δp4 < K2, it indicates that the plate heat exchanger 104 of the ice maker 100 is severely blocked, the ice-removing operation should be performed.
Wherein K2 is a second threshold, which is a difference between a pressure value of the ice maker 100 when ice is severely blocked and a pressure value of the ice maker 100 when the ice maker 100 is operating normally, and is used to help the ice maker 100 determine whether ice blocking occurs.
Fifth:
the determining unit 203 is configured to determine whether the first difference, the second difference, and the fourth difference are all greater than 0 and less than the second threshold, and whether the third difference is greater than or equal to the second threshold.
When the first difference, the second difference, and the fourth difference are all greater than 0 and less than the second threshold, and the third difference is greater than or equal to the second threshold, that is, when Δp3 is greater than or equal to K2 and Δp1/Δp2/Δp4 < K2, it indicates that serious ice blockage occurs in the ice slurry generator 105 of the ice machine 100, and an ice-breaking operation should be performed.
Sixth:
the determining unit 203 is configured to determine whether the first difference, the second difference, and the third difference are all greater than 0 and less than the second threshold, and whether the fourth difference is greater than or equal to the second threshold.
When the first difference, the second difference and the third difference are all greater than 0 and smaller than the second threshold, and the fourth difference is greater than or equal to the second threshold, that is, when Δp4 is greater than or equal to K2 and Δp1/Δp2/Δp3 < K2, it indicates that serious ice blockage occurs in the system ice slurry pipeline of the ice machine 100, and an ice removing operation should be performed.
The ice-removing instruction generating unit 204 is configured to generate an ice-removing instruction if the first difference, the second difference, the third difference, and the fourth difference meet a preset condition, where the ice-removing instruction carries ice-removing position information.
It should be noted that, the de-icing instruction includes the position information to be de-iced, so the de-icing module 111 may remove ice at the position corresponding to the de-icing position information according to the ice-icing instruction, where the de-icing position information may be, but is not limited to, the plate heat exchanger 104, the ice slurry generator 105, or the system ice slurry pipeline.
As can be seen from the above, when the first, second, third, and fourth differences satisfy any of the above-described conditions, the ice maker 100 will operate an ice-removing process to remove ice that prevents the ice maker 100 from operating normally.
When any one of the first pressure sensor 106, the second pressure sensor 107, the third pressure sensor 108, or the fourth pressure sensor 109 fails and the pressure value detection cannot be performed normally, the respective units of the ice jam detection device 200 function as follows:
the data receiving unit 201 is used for receiving a detected temperature value at the outlet of the ice slurry generator 105.
The detected temperature value is collected by a temperature sensor 110 provided at the outlet of the ice slurry generator 105.
The judging unit 203 is configured to judge whether the detected temperature value is less than or equal to a preset temperature value.
By determining whether the detected temperature value is less than or equal to a preset temperature value, the ice maker 100 can learn its current operation, that is: whether or not ice blockage occurs, how the ice blockage is, and the location where the ice blockage occurs.
The ice-breaking instruction generating unit 204 is configured to operate an ice-breaking program if the detected temperature value is less than or equal to a preset temperature value.
When the detected temperature value is less than or equal to the preset temperature value, it is indicated that ice blockage occurs in the ice maker 100, and an ice-releasing program should be run.
It should be noted that, the ice maker 100 preferably adopts whether the pressure difference meets the preset condition to determine whether the ice blockage occurs in the ice maker 100 and whether the ice detachment program needs to be run, and the method provided in this embodiment is mainly used for assisting in determining whether the ice blockage occurs in the ice maker 100 and whether the ice detachment program needs to be run when the pressure sensor is damaged.
Second embodiment
The ice blockage detection method provided by the embodiment of the invention is applied to an ice maker 100. It should be noted that, the basic principle and the technical effects of the ice blockage detection method provided in the present embodiment are the same as those of the above embodiment, and for brevity, reference should be made to the corresponding content in the above embodiment. Referring to fig. 3, the ice blockage detection method includes the following steps:
step S301: receiving a first detected pressure value transmitted by a first pressure sensor 106 at the inlet of a plate heat exchanger 104 of an ice maker 100, a second detected pressure value transmitted by a second pressure sensor 107 at the outlet of the plate heat exchanger 104, a third detected pressure value transmitted by a third pressure sensor 108 at the inlet of an ice slurry generator 105 of the ice maker 100, and a fourth detected pressure value transmitted by a fourth pressure sensor 109 at the outlet of the ice slurry generator 105.
It is understood that step S301 may be performed by the data receiving unit 201.
Step S302: and calculating a first difference value formed by the first detection pressure value and a first preset pressure value, a second difference value formed by the second detection pressure value and a second preset pressure value, a third difference value formed by the third detection pressure value and a third preset pressure value and a fourth difference value formed by the fourth detection pressure value and a fourth preset pressure value.
It is understood that step S302 may be performed by the computing unit 202.
Step S303: judging whether the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions or not.
It is to be understood that step S303 may be performed by the judging unit 203.
Specifically, referring to fig. 4 to 9, step S303 includes the following six substeps, which correspond to the 6 preset conditions set by the ice maker 100.
First kind:
substep S3031: judging whether the first difference value is greater than or equal to a first threshold value and whether the second difference value, the third difference value and the fourth difference value are all greater than 0 and smaller than the first threshold value, if so, executing a step S3032; if not, step S301 is performed.
Substep S3032: judging whether the time for maintaining the state that the first difference value is greater than or equal to the first threshold value is greater than a preset time, if so, executing step S304; if not, step S301 is performed.
Second kind:
substep S3033: judging whether the third difference value is greater than or equal to a first threshold value and whether the first difference value, the second difference value and the fourth difference value are all greater than 0 and smaller than the first threshold value, if so, executing a step S3034; if not, step S301 is performed.
Substep S3034: judging whether the time for maintaining the state that the third difference value is greater than or equal to the third threshold value is greater than a preset time, if so, executing step S304; if not, step S301 is performed.
Third kind:
substep S3035: judging whether the fourth difference value is greater than or equal to a first threshold value and whether the first difference value, the second difference value and the third difference value are all greater than 0 and smaller than the first threshold value, if yes, executing step S3036; if not, step S301 is performed.
Substep S3036: judging whether the time for maintaining the state that the fourth difference value is greater than or equal to the first threshold value is greater than a preset time, if so, executing step S304; if not, step S301 is performed.
Fourth kind:
substep S3037: judging whether the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than the second threshold value and whether the first difference value is larger than or equal to the second threshold value, if so, executing step S304; if not, step S301 is performed.
Fifth:
substep S3038: judging whether the first difference value, the second difference value and the fourth difference value are all larger than 0 and smaller than the second threshold value and whether the third difference value is larger than or equal to the second threshold value, if so, executing step S304; if not, step S301 is performed.
Sixth:
substep S3039: judging whether the first difference value, the second difference value and the third difference value are all larger than 0 and smaller than the second threshold value and whether the fourth difference value is larger than or equal to the second threshold value, if so, executing step S304; if not, step S301 is performed.
Step S304: and generating an ice-breaking instruction.
It is understood that step S304 may be performed by the ice-breaking instruction generating unit 204.
Referring to fig. 10, when any one of the first pressure sensor 106, the second pressure sensor 107, the third pressure sensor 108 or the fourth pressure sensor 109 fails and the pressure value detection cannot be performed normally, the ice blockage detection method includes the following steps:
step S401: a sensed temperature value at the outlet of the ice slurry generator 105 is received.
It will be appreciated that step S401 may be performed by the signal receiving unit.
Step S402: and judging whether the detected temperature value is smaller than or equal to a preset temperature value, if so, executing step S403, and if not, executing step S401.
It is understood that step S402 may be performed by the judging unit 203.
Step S403: and generating an ice-breaking instruction.
It is understood that step S403 may be performed by the ice-breaking instruction generating unit 204.
In summary, by collecting the pressure detection values at different positions in the ice machine and calculating the difference value between the pressure detection value and the pressure preset value, and judging whether the difference value meets the preset condition, the ice machine can clearly and quickly acquire whether ice blockage exists in the ice machine or not, and meanwhile, the position where the ice blockage occurs can be accurately judged, so that the ice machine judging and ice blockage solving speed is greatly improved, the running state of the ice machine is safer, and the service life of the ice machine is prolonged.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flowcharts and block diagrams in the figures that illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a unit, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional units in the embodiments of the present invention may be integrated together to form a single part, or each unit may exist alone, or two or more units may be integrated to form a single part.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Onl memory 4, a random access memory (RAM, random Access Memor 4), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the element defined by the statement "comprising one … …", it does not exclude that an additional identical element is present in a process, method, article or apparatus that comprises the element.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Claims (7)
1. The ice blockage detection method is characterized by comprising the following steps of:
receiving a first detection pressure value transmitted by a first pressure sensor at the inlet of a plate heat exchanger of an ice maker, a second detection pressure value transmitted by a second pressure sensor at the outlet of the plate heat exchanger the third detection pressure value is transmitted by a third pressure sensor at the inlet of the ice slurry generator of the ice machine, and the fourth detection pressure value is transmitted by a fourth pressure sensor at the outlet of the ice slurry generator;
calculating a first difference value formed by the first detection pressure value and a first preset pressure value, a second difference value formed by the second detection pressure value and a second preset pressure value, a third difference value formed by the third detection pressure value and a third preset pressure value and a fourth difference value formed by the fourth detection pressure value and a fourth preset pressure value, wherein the first difference value, the second difference value, the third difference value and the fourth difference value are positive values;
Judging whether the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions or not;
generating an ice-removing instruction if the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions, wherein the ice-removing instruction carries ice-removing position information;
the first pressure detection value, the second pressure detection value, the third pressure detection value and the fourth pressure detection value are all pressure values collected by the real-time running of the ice maker;
the step of judging whether the first difference, the second difference, the third difference and the fourth difference meet a preset condition comprises the following steps:
judging whether the first difference value is larger than or equal to a first threshold value, and whether the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than the first threshold value, if so, judging whether the time for maintaining the state that the first difference value is larger than or equal to the first threshold value is longer than a preset time;
the step of generating an ice-breaking instruction if the first difference, the second difference, the third difference and the fourth difference meet a preset condition includes:
If the first difference value is greater than or equal to a preset first threshold value, the second difference value, the third difference value and the fourth difference value are all greater than 0 and less than the first threshold value, and the time for maintaining the state that the first difference value is greater than or equal to the first threshold value is greater than the preset time, generating the ice-breaking instruction;
the step of judging whether the first difference, the second difference, the third difference and the fourth difference meet a preset condition comprises the following steps:
judging whether the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than a second threshold value and whether the first difference value is larger than or equal to the second threshold value;
the step of generating an ice-breaking instruction if the first difference, the second difference, the third difference and the fourth difference meet a preset condition includes:
and if the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than the second threshold value, and the first difference value is larger than or equal to the second threshold value, generating the ice-releasing instruction.
2. The ice jam detection method of claim 1, wherein the step of determining whether the first, second, third and fourth differences meet a preset condition includes:
Judging whether the third difference value is larger than or equal to a first threshold value, and whether the first difference value, the second difference value and the fourth difference value are both larger than 0 and smaller than the first threshold value, if so, judging whether the time for maintaining the state that the third difference value is larger than or equal to the first threshold value is longer than a preset time;
the step of generating an ice-breaking instruction if the first difference, the second difference, the third difference and the fourth difference meet a preset condition includes:
and if the third difference value is greater than or equal to a first threshold value, generating the ice-releasing instruction when the first difference value, the second difference value and the fourth difference value are all greater than 0 and less than the first threshold value and the time for maintaining the state that the third difference value is greater than or equal to the first threshold value is greater than a preset time.
3. The ice jam detection method of claim 1, wherein the step of determining whether the first, second, third and fourth differences meet a preset condition includes:
judging whether the fourth difference value is larger than or equal to a first threshold value and whether the first difference value, the second difference value and the third difference value are all larger than 0 and smaller than the first threshold value, if so, judging whether the time for maintaining the state that the fourth difference value is larger than or equal to the first threshold value is longer than a preset time;
The step of generating an ice-breaking instruction if the first difference, the second difference, the third difference and the fourth difference meet a preset condition includes:
and if the fourth difference value is greater than or equal to the first threshold value, the first difference value, the second difference value and the third difference value are all greater than 0 and less than the first threshold value, and the time for maintaining the state that the fourth difference value is greater than or equal to the first threshold value is greater than the preset time, generating the ice-releasing instruction.
4. The ice jam detection method of claim 1, wherein the step of determining whether the first, second, third and fourth differences meet a preset condition includes:
judging whether the first difference value, the second difference value and the fourth difference value are all larger than 0 and smaller than a second threshold value and whether the third difference value is larger than or equal to the second threshold value;
the step of generating an ice-breaking instruction if the first difference, the second difference, the third difference and the fourth difference meet a preset condition includes:
and if the first difference value, the second difference value and the fourth difference value are all larger than 0 and smaller than the second threshold value, and the third difference value is larger than or equal to the second threshold value, generating the ice-releasing instruction.
5. The ice jam detection method of claim 1, wherein the step of determining whether the first, second, third and fourth differences meet a preset condition includes:
judging whether the first difference value, the second difference value and the third difference value are all larger than 0 and smaller than a second threshold value or not and whether the fourth difference value is larger than or equal to the second threshold value or not;
the step of generating an ice-breaking instruction if the first difference, the second difference, the third difference and the fourth difference meet a preset condition includes:
and if the first difference value, the second difference value and the third difference value are all larger than 0 and smaller than the second threshold value, and the fourth difference value is larger than or equal to the second threshold value, generating the ice-releasing instruction.
6. The utility model provides a stifled detection device of ice, its characterized in that, stifled detection device of ice includes:
the data receiving unit is used for receiving a first detection pressure value transmitted by a first pressure sensor at the inlet of a plate heat exchanger of an ice maker, a second detection pressure value transmitted by a second pressure sensor at the outlet of the plate heat exchanger, a third detection pressure value transmitted by a third pressure sensor at the inlet of an ice slurry generator of the ice maker and a fourth detection pressure value transmitted by a fourth pressure sensor at the outlet of the ice slurry generator;
The calculating unit is used for calculating a first difference value formed by the first detection pressure value and a first preset pressure value, a second difference value formed by the second detection pressure value and a second preset pressure value, a third difference value formed by the third detection pressure value and a third preset pressure value and a fourth difference value formed by the fourth detection pressure value and a fourth preset pressure value;
the judging unit is used for judging whether the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions or not;
the ice-removing instruction generating unit is used for generating an ice-removing instruction to control the ice-removing module to operate an ice-removing program if the first difference value, the second difference value, the third difference value and the fourth difference value meet preset conditions, wherein the ice-removing instruction carries ice-removing position information;
the first pressure detection value, the second pressure detection value, the third pressure detection value and the fourth pressure detection value are all pressure values collected by the real-time running of the ice maker;
the judging unit is specifically configured to:
judging whether the first difference value is larger than or equal to a first threshold value, and whether the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than the first threshold value, if so, judging whether the time for maintaining the state that the first difference value is larger than or equal to the first threshold value is longer than a preset time;
The ice-breaking instruction generating unit is specifically configured to:
if the first difference value is greater than or equal to a preset first threshold value, the second difference value, the third difference value and the fourth difference value are all greater than 0 and less than the first threshold value, and the time for maintaining the state that the first difference value is greater than or equal to the first threshold value is greater than the preset time, generating the ice-breaking instruction;
the judging unit is specifically configured to:
judging whether the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than a second threshold value and whether the first difference value is larger than or equal to the second threshold value;
the ice-breaking instruction generating unit is specifically configured to:
and if the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than the second threshold value, and the first difference value is larger than or equal to the second threshold value, generating the ice-releasing instruction.
7. The ice maker is characterized by comprising a plate heat exchanger, an ice slurry generator, a first pressure sensor, a second pressure sensor, a third pressure sensor, a fourth pressure sensor, an ice breaking module and a processor, wherein the processor is respectively and electrically connected with the plate heat exchanger, the ice slurry generator, the first pressure sensor, the second pressure sensor, the third pressure sensor, the fourth pressure sensor and the ice breaking module;
The first pressure sensor is arranged at the inlet of the plate heat exchanger and is used for detecting a first detection pressure value at the inlet of the plate heat exchanger;
the second pressure sensor is arranged at the outlet of the plate heat exchanger and is used for detecting a second detection pressure value at the outlet of the plate heat exchanger;
the third pressure sensor is arranged at the inlet of the ice slurry generator and is used for detecting a third detection pressure value at the inlet of the ice slurry generator;
the fourth pressure sensor is arranged at the outlet of the ice slurry generator and is used for detecting a fourth detection pressure value at the outlet of the ice slurry generator;
the processor is configured to calculate a first difference value formed by the first detected pressure value and a first preset pressure value, a second difference value formed by the second detected pressure value and a second preset pressure value, a third difference value formed by the third detected pressure value and a third preset pressure value, and a fourth difference value formed by the fourth detected pressure value and a fourth preset pressure value, and determine whether the first difference value, the second difference value, the third difference value, and the fourth difference value meet preset conditions, if yes, generate an ice-releasing instruction to control the ice-releasing module to release ice, where the first difference value, the second difference value, the third difference value, and the fourth difference value are positive values;
The first pressure detection value, the second pressure detection value, the third pressure detection value and the fourth pressure detection value are all pressure values collected by the real-time running of the ice maker;
the processor is further configured to:
judging whether the first difference value is larger than or equal to a first threshold value, and whether the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than the first threshold value, if so, judging whether the time for maintaining the state that the first difference value is larger than or equal to the first threshold value is longer than a preset time;
the processor is further configured to:
if the first difference value is greater than or equal to a preset first threshold value, the second difference value, the third difference value and the fourth difference value are all greater than 0 and less than the first threshold value, and the time for maintaining the state that the first difference value is greater than or equal to the first threshold value is greater than the preset time, generating the ice-breaking instruction;
the processor is further configured to:
judging whether the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than a second threshold value and whether the first difference value is larger than or equal to the second threshold value;
the processor is further configured to:
And if the second difference value, the third difference value and the fourth difference value are all larger than 0 and smaller than the second threshold value, and the first difference value is larger than or equal to the second threshold value, generating the ice-releasing instruction.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10159485A (en) * | 1996-11-26 | 1998-06-16 | Tokyu Constr Co Ltd | Detector of clogged position |
| CN101922830A (en) * | 2010-08-05 | 2010-12-22 | 华中科技大学 | Supercooled liquid ice slurry continuous preparation device |
| CN102705712A (en) * | 2012-05-30 | 2012-10-03 | 辽宁工程技术大学 | Method for monitoring ice blocking position of pipeline transmitted ice slurry |
| CN202709584U (en) * | 2012-06-25 | 2013-01-30 | 深圳力合节能技术有限公司 | Ice making unit |
| CN103206305A (en) * | 2012-01-13 | 2013-07-17 | 通用汽车环球科技运作有限责任公司 | Fuel system blockage detection and blockage location identification systems and methods |
| CN103216266A (en) * | 2012-01-21 | 2013-07-24 | 飞翼股份有限公司 | Pressure detecting method for preventing clogging of filling pipeline |
| CN105402969A (en) * | 2015-12-10 | 2016-03-16 | 深圳达实智能股份有限公司 | Energy-saving deicing dynamic ice-making system and deicing operation method thereof |
| CN205641706U (en) * | 2016-04-19 | 2016-10-12 | 湖南工程学院 | Utilize recovery waste heat to prevent cold process production ice thick liquid stifled device of ice to appear |
| CN206861946U (en) * | 2017-06-26 | 2018-01-09 | 成都中装能源科技有限公司 | Ice machine and ice-making system |
-
2017
- 2017-06-26 CN CN201710494874.0A patent/CN107144063B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10159485A (en) * | 1996-11-26 | 1998-06-16 | Tokyu Constr Co Ltd | Detector of clogged position |
| CN101922830A (en) * | 2010-08-05 | 2010-12-22 | 华中科技大学 | Supercooled liquid ice slurry continuous preparation device |
| CN103206305A (en) * | 2012-01-13 | 2013-07-17 | 通用汽车环球科技运作有限责任公司 | Fuel system blockage detection and blockage location identification systems and methods |
| CN103216266A (en) * | 2012-01-21 | 2013-07-24 | 飞翼股份有限公司 | Pressure detecting method for preventing clogging of filling pipeline |
| CN102705712A (en) * | 2012-05-30 | 2012-10-03 | 辽宁工程技术大学 | Method for monitoring ice blocking position of pipeline transmitted ice slurry |
| CN202709584U (en) * | 2012-06-25 | 2013-01-30 | 深圳力合节能技术有限公司 | Ice making unit |
| CN105402969A (en) * | 2015-12-10 | 2016-03-16 | 深圳达实智能股份有限公司 | Energy-saving deicing dynamic ice-making system and deicing operation method thereof |
| CN205641706U (en) * | 2016-04-19 | 2016-10-12 | 湖南工程学院 | Utilize recovery waste heat to prevent cold process production ice thick liquid stifled device of ice to appear |
| CN206861946U (en) * | 2017-06-26 | 2018-01-09 | 成都中装能源科技有限公司 | Ice machine and ice-making system |
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