CN204718214U - A kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions - Google Patents
A kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions Download PDFInfo
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- CN204718214U CN204718214U CN201520347026.3U CN201520347026U CN204718214U CN 204718214 U CN204718214 U CN 204718214U CN 201520347026 U CN201520347026 U CN 201520347026U CN 204718214 U CN204718214 U CN 204718214U
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Abstract
The utility model discloses a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions, be difficult to really to realize Double-locomotive rotation refrigeration and intelligent control degree is not enough in order to solve existing pair of refrigeration system, cannot Timeliness coverage after breaking down, failure response needs to regulate manually, the problem that response speed is low.The temperature control system of the two refrigeration system of the utility model can be selected startup first refrigeration system or the second refrigeration system by obtaining real-time working condition parameter intelligent or start two cover systems simultaneously, can also judge whether two cover refrigeration systems break down and fault type according to real-time working condition parameter intelligent, and carry out failure response.Of the present utility model pair of refrigeration system effectively can realize dual system rotation alternately refrigeration, simultaneously can effective coordination failure system and non-faulting system worked well when refrigeration system breaks down.The utility model also really achieves Based Intelligent Control and intelligent trouble diagnosis, substantially increases failure response speed, and then improves the stability of two refrigeration system.
Description
Technical field
The utility model relates to refrigeration technology field, is specifically related to a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions.
Background technology
Along with scientific and technological progress and socio-economic development, super low temperature refrigeration technology is important all the more in the status of refrigerating field.The numerous areas such as Aero-Space, electric and electronic, medical pharmacy and biochemistry all be unable to do without super low temperature refrigeration technology.The refrigeration control system that super low temperature refrigeration majority only has a set of complete circuit is related in prior art, and in actual applications, once this cover refrigeration control system breaks down, bring great inconvenience will to the use of people, especially high field be required to temperature control precision.For above difficult point, researcher has carried out many research around two refrigeration control system, overlaps independently refrigeration system controlling respectively by arranging two, even if thus guarantee that wherein set of system damages refrigeration terminal and still can normally work.
Two refrigeration systems reasonable in design are disclosed separately, even if refrigeration terminal still can normally work after achieving the damage of a set of refrigeration system in China patent CN104344597A and CN201377954Y.But there is following problem in existing pair of refrigeration system: first, existing pair of refrigeration system all continues the principle of single fighter refrigeration, control principle is too simple, single fighter refrigerating capacity is too low simultaneously, so two cover refrigeration systems must work simultaneously, lower temperature (referring generally to less than-80 DEG C) could be obtained, therefore the service life of every platform unit and the service life of single fighter substantially very nearly the same; The second, because two cover refrigeration systems are completely independent, the fault rate of entire system adds one glass, and therefore in general, machine life is lower than single system super low temperature refrigeration equipment on the contrary; 3rd, must run in-cabinet temperature due to two cover refrigeration systems simultaneously and just can reach-80 DEG C, if wherein any set of system breaks down, then refrigeration performance can decline to a great extent, and in-cabinet temperature can only maintain-65 DEG C, two refrigeration system poor stability; 4th, two refrigeration system difficult coordination, is easy to occur temperature fluctuation.
Except above-mentioned deficiency, the deficiency that existing two refrigeration systems are maximum is that majority takes manual control system, intelligence degree is not enough, corresponding refrigerant sequence need be preset in advance, break down and be also difficult to Timeliness coverage, therefore probably cause huge loss to user, especially store and accurate scientific research field in medical treatment.
Summary of the invention
Technical problem to be solved in the utility model is that of the prior art pair of refrigeration system must be freezed simultaneously, and service life is short, unstable properties, and temperature fluctuation is larger; Another problem to be solved in the utility model is that the existing pair of refrigeration system intelligent control degree is not enough, cannot Timeliness coverage after breaking down, and failure response needs to regulate manually, and response speed is low.
For solving the problems of the technologies described above, the utility model proposes a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions, and its control principle and fault diagnosis principle are elaborated.
A kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions, refrigeration system and temperature control system, refrigeration system comprises the first refrigeration system and the second refrigeration system that two covers completely independently arrange, it is characterized in that: described temperature control system and two overlaps refrigeration system and is connected, select startup first refrigeration system or the second refrigeration system according to real-time working condition parameter automated intelligent or start two cover refrigeration systems simultaneously; According to real-time working condition parameter intelligent, described temperature control system judges whether two cover refrigeration systems break down and fault type, and carry out failure response.
Further, temperature control system comprises temperature collect module, controls to arrange module, switching value transmitting module, display module, alarm module, supply module and kernel control module; Described temperature collect module, display module, control arrange module, switching value transmitting module, alarm module, supply module are connected with kernel control module respectively.
Further, kernel control module is CPU.
Further, temperature collect module comprises temperature transmitter (C1) and Temperature sampler.
Further, display module (DSP) is 7 cun of touch-screens; Display floater is provided with USB interface (USB), USB flash disk copies data can be passed through at any time.
Further, control arranges module (ST) and connects 6 capacitance touch buttons, in order to convert 6 switching signals to data signal, be transferred to main control chip, described 6 capacitance touch buttons comprise: mute button (BT1), lamp switch button (BT2), arrange button (BT3), Reset button (BT4), system power switch button (BT5) and electronic lock switch button (BT6).
Further, switching value transmitting module comprises switching value transmitter (C3) and cabinet door switch (S1-S3).
Further, alarm module comprises buzzer siren (ALM), and alarm condition directly controls by CPU, can eliminate system alarm sound by BT1.
Further, the power supply mode of supply module comprises powered battery and ac power supply.
Further, described temperature control system can also comprise pressure acquisition module, clock module, communication module and voltage compensation module; Described pressure acquisition module, clock module, communication module are connected with kernel control module respectively with voltage compensation module.
Further, pressure acquisition module comprises pressure transmitter (C2) and related probes.
Further, communication module (CMN) supports Ethernet, 485 wire communications, supports Zigbee, WIFI and GPRS wireless telecommunications; Described communication module also possesses phone, SMS alarm function (type of alarm is optional), also can obtain current operating conditions whenever and wherever possible by SIM number.
Further, clock module (CLK), when communication module has SIM, is fed back to CPU by the automatic regulating time of GPRS and date.
Further, voltage compensation module is used for the systems stabilisation voltage when voltage instability.
In the utility model, temperature control system is selected startup first refrigeration system or the second refrigeration system according to real-time working condition parameter automated intelligent or starts two cover refrigeration systems simultaneously, and this intelligent control method comprises the steps:
When the device first of carrying two refrigeration system is run or equipment box temperature is too high, the compressor relay (V2) of compressor relay (V1) and the second refrigeration system (2) that kernel control module (CPU) controls the first refrigeration system (1) closes simultaneously, and two refrigeration system is started working simultaneously; When in-cabinet temperature is down to below design temperature, CPU specifies a certain refrigeration system shut down and enter resting state, the relay that CPU controls this refrigeration system disconnects, another refrigeration system enters state of activation simultaneously, starts rotational cycle timing (namely allowing the maximum duration of same refrigeration system continuous operation);
In active state, when in-cabinet temperature is no more than temperature upper limit (desired temperature+temperature fluctuation range), the compressor in this system is in stopped status to the refrigeration system be activated; Once in-cabinet temperature is higher than temperature upper limit, then the compressor starts running in this refrigeration system; When cabinet temperature is down to design temperature again, compressor shuts down, and waits for next temperature cycles;
Until the time that the refrigeration system be activated enters state of activation reaches the rotational cycle of setting, the refrigeration system of original dormancy enters state of activation and starts pre-cooled, when pre-cooled reach the regular hour after, the refrigeration system be originally activated shuts down and enters resting state, until next rotational cycle.
In the utility model, according to real-time working condition parameter intelligent, temperature control system judges whether two cover refrigeration systems break down and fault type, and carries out failure response.This intelligent trouble diagnosis and failure response comprise the steps:
(1) kernel control module sends status poll instruction to correlation module, comprising: send temperature sensing instruction to temperature sensing module; Door opening and closing state probe instructions is sent to switching value transmitting module; Alarm condition probe instructions is sent to alarm module; The instruction of power on/off state detection is sent to supply voltage judge module.
(2) each module acquires relevant information feed back to kernel control module.
(3) according to feedback information, kernel control module judges whether refrigeration system breaks down.
(4) kernel control module carries out intelligent trouble response on the basis of fault diagnosis, intelligent trouble response comprise the on off state of compressor relay in force handoff activation system, the two refrigeration system of change, change kernel control module to the control object of relay instruction, close dual system rotation operation and halt system.
The technique effect that the utility model realizes is as follows:
Of the present utility model pair of refrigeration system effectively can realize two refrigeration system rotation alternately refrigeration, simultaneously can effective coordination failure system and non-faulting system worked well when refrigeration system breaks down.The two refrigeration system of the utility model really achieve Based Intelligent Control and intelligent trouble diagnosis, substantially increase failure response speed, and then improve the stability of two refrigeration system.
In the utility model, two cover refrigeration system rotations alternately refrigeration, substantially prolongs the service life of single compressor; In two cover refrigeration system handoff procedures, have employed pre-cooled system, guarantee still effectively to keep the stable of in-cabinet temperature in the process mutually switched in two cover refrigeration systems, solve the problem that temperature fluctuation is large; Single cover refrigeration system duration of work, compressor operation, by cabinet temperature control, both energy-conserving and environment-protective, also can feed back variations in temperature simultaneously effectively rapidly, solves the problem of excessive temperature differentials in cabinet, extends the service life of compressor further simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below.
Accompanying drawing 1 is based on control system module map of the present utility model;
Accompanying drawing 2 is based on the two refrigeration system hardware composition diagram of one of the present utility model;
Accompanying drawing 3 is schematic diagram of refrigerating of two refrigeration system in the utility model;
Accompanying drawing 4 is two refrigeration system compressor job order figure in the utility model.
Shown in accompanying drawing, correlative code or abbreviation are described in detail as follows:
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment provides a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions, short, unstable properties in the existing pair of refrigeration system service life can be solved, temperature fluctuation is comparatively large, intelligent control degree is not enough, break down after Timeliness coverage, failure response cannot need the problem that regulates manually and response speed is low.The utility model embodiment also provides a kind of corresponding intelligent control method and method for diagnosing faults.Below be described in detail respectively.
embodiment 1
The present embodiment provides a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions, fig. 1 illustrates based on temperature control system module map of the present utility model, accompanying drawing 2 is a kind of two refrigeration system hardware composition diagrams with Based Intelligent Control and fault diagnosis functions of the present embodiment.Be described in detail to based on intelligence control system of the present utility model below in conjunction with the present embodiment.
There are two refrigeration systems for Based Intelligent Control and fault diagnosis functions, comprise refrigeration module, temperature collect module, pressure acquisition module, control to arrange module, switching value transmitting module, clock module, display module, communication module, alarm module, supply module, voltage compensation module and kernel control module; Refrigeration module, temperature collect module, pressure acquisition module, control to arrange module, switching value transmitting module, clock module, display module, communication module, alarm module, supply module, voltage compensation module be connected with kernel control module respectively.
Wherein, kernel control module is CPU.
Wherein, refrigeration module comprises two and overlaps independently refrigeration system, i.e. the first refrigeration system (1) and the second refrigeration system (2), as shown in Figure 3; First refrigeration system (1) comprises No. 1 compressor (1a, namely the CM1 in accompanying drawing 2), No. 1 condenser (1b), No. 1 refrigerant separator (1c), No. 1 intercooler (1d) and evaporimeter (1e), second refrigeration system (2) comprises No. 1 compressor (2a, the CM2 namely in accompanying drawing 2), No. 1 condenser (2b), No. 1 refrigerant separator (2c), No. 1 intercooler (2d) and evaporimeter (2e); Refrigeration module, except comprising two cover refrigeration systems, also comprises the parts such as the relay (V1) of control No. 1 compressor, the relay (V2) controlling No. 2 compressors, electromagnetism on-off valve (VL) and corresponding relay (V3), defrost heating tube (HT1) and corresponding relay (V4).Wherein any a set of refrigeration system work, adopts the cold in-cabinet temperature of this refrigeration system all can reach-86 DEG C, often overlaps refrigeration system and all adopts unit Auto-cascade cycle mixing coolant refrigeration system
Wherein, temperature collect module comprises temperature transmitter (C1) and Temperature sampler, and temperature transmitter at least can connect 4 Temperature samplers, is connected with 8 Temperature samplers (T1-T4, T9-T12) in the present embodiment altogether; Wherein, T1 and T2 controls probe, T3 and T4 is displays temperature probe, and the probe playing major function all adopts dual probe to arrange, and when guaranteeing that one of them breaks down, automatically switches to another one probe, to ensure the stable operation of system.The temperature information that Temperature sampler obtains is converted into data signal by temperature transmitter, is transferred to CPU.
Wherein, pressure acquisition module comprises pressure transmitter (C2) and pressure acquisition device, and pressure transmitter at least can connect 4 pressure acquisition devices, is connected with 4 pressure acquisition devices (P1-P4) in the present embodiment altogether.The convert information that pressure acquisition device obtains by pressure transmitter is data signal, is transferred to CPU.
Wherein, display module (DSP) is 7 cun of touch-screens, shows temperature information, warning message above; In addition, touch display screen logs in button, click and eject username and password input window; Input user name code error continuously more than 5 times, system can send warning; If user is in Entered state, any operation all can with active user's authority for foundation (no longer eject user name and password box, if insufficient permission, eject prompting message frame); User 30s, without any operation, exits Entered state automatically; If user is in non-logging status, when needing, then eject user name and password box.
User is divided into by authority: designer's (highest weight limit), after sale personnel's (secondary authority), customer administrator's (three grades of authorities), advanced level user's (level Four authority), domestic consumer's (Pyatyi authority); More than 3 grades of authorities can additions and deletions 3,4,5 grades of user names, revise it and log in password and authority.
Display floater is provided with USB interface (USB), USB flash disk copies data can be passed through at any time.
Wherein, control arranges module (ST) and connects 6 capacitance touch buttons, in order to convert 6 switching signals to data signal, be transferred to main control chip, described 6 capacitance touch buttons comprise: 1. mute button (BT1)---and under alarm condition, press mute button, eliminate system alarm sound, after 30 minutes, alarm sound recovers automatically; 2. lamp switch button (BT2)---press lamp switch, if lamp is bright, then extinguish, if lamp goes out, then light; Button (BT3) is 3. set---click and key is set, different content can be set according to user class; 4. Reset button (BT4)---reset all settings and return default conditions; 5. system power switch button (BT5)---after pressing power switch, then eject username and password input window, if system is in powered operation state, input is correct and have the username and password (if insufficient permission, ejecting prompting message frame) of enough authorities, system stops all forceful electric power to export, and (V1 ~ V11 relay all disconnects, other normally export), only have temperature controller itself still to keep power supply state, report to the police and stop timing; If system is in power-off resting state, need input username and password, any user has start authority, and system starts the operation that powers on; Default conditions are powered operation state; 6. electronic lock switch button (BT6)---press unlock/lock button, if electronic lock is in the lock state, then open, otherwise locking.
Wherein, switching value transmitting module comprises switching value transmitter (C3) and cabinet door switch (S1-S3), and cabinet door opening and closing state convert information is that digital data transmission is to CPU by switching value transmitter.
Wherein, communication module (CMN) supports Ethernet, 485 wire communications, supports Zigbee, WIFI and GPRS wireless telecommunications, supports wide-area network access simultaneously; If LAN data is by end of automatically uploading onto the server (needing the supporting program of server end), fixes IP visit wide area network server if wide area network can set server end; Described communication module also possesses phone, SMS alarm function (type of alarm is optional), also can obtain current operating conditions whenever and wherever possible by SIM number.
Wherein, clock module (CLK), when communication module has SIM, is fed back to CPU by the automatic regulating time of GPRS and date.
Wherein, alarm module comprises buzzer siren (ALM), and alarm condition directly controls by CPU, can eliminate system alarm sound by BT1.In system cloud gray model, as occurred, following fault is then reported to the police, and starts buzzer warning, and remote alarms output relay closes, and other action according to the form below 1 instructions perform.
The fault actions of reporting to the police is there is in table 1 system operation
Wherein, supply module is used for powering for CPU, and this module comprises powered battery module, ac power supply module, main board power supply relay (V15) and accumulate electric capacity (CP); Powered battery module comprises battery (BT), cell voltage determining device (VD1), cell switch (SWT2), Battery-charging relay (V16) and battery charging transformer (TF2); Ac power supply modular jack (PW), general supply break-make relay (VX), supply voltage determining device (VD2), total power switch (SWT1) and main board power supply transformer (TF1).Wherein SWT1 is that battery carries out charge (charging source is PW) by control TF2.
Cell voltage is 12V, capacity 20AH, can support control system work more than 72 hours under AC-less power on-condition; Battery charging voltage is 14.8V, maximum charging current 2A; When battery electric quantity reaches 100% (battery electrostatic pressure reaches 12.7V), disconnect charge power supply (alternating current), when electricity is lower than 70% (battery electrostatic pressure reaches 12.3V), connect charge power supply and start charging (in charging process, every 5 minutes, disconnect a charge power supply, detect battery electrostatic pressure).
If the power-off of 220V alternating current, or voltage is more than 290V, or voltage is lower than 80V, or total power switch disconnects, then disconnect supply transformer (TF1), begin through battery to power to CPU, when electricity is lower than 10% (battery electrostatic pressure reaches 11.6V), powered battery disconnects automatically.
After storage capacitor guarantees that power supply or battery disconnect, electric capacity can keep powering more than 10 minutes to temperature controller, and electric capacity selects the electric capacity of 12V 50F.
Wherein, voltage compensation module comprises voltage compensator (VTG) and corresponding relay (V11-V13), and the application of voltage compensator comprises following several situation:
(1) be used in 220V circuit, when input voltage reduces, when input voltage is down to 205V, relay V10 relay disconnects, V11 relay closes simultaneously, access charger boost (supercharging amplitude 12 volts), when input voltage rises to 215V, relay V10 relay closes, V11 relay disconnects simultaneously.
(2) be used in 220V circuit, when input voltage raises, when input voltage rises to 242V, relay V10 relay disconnects, V11 relay closes simultaneously, V12 relay closes, V13 relay closes, access reducing transformer step-down (Amplitude of Hypotensive 12 volts), when input voltage is down to 225V, relay V10 relay closes, V11 relay disconnects simultaneously, V12 relay disconnects, and V13 relay disconnects.
(3) when input voltage is down to 183V or input voltage rises to 270V, V1 relay disconnects, and stops all forceful electric power to export (V1 ~ V11 relay all disconnects, and other normally export).
Voltage compensation module can improve the reactance voltage fluctuation ability of system.
embodiment 2
Present embodiments provide temperature control system in embodiment 1 and how to control two refrigeration system alternately refrigeration.The in-cabinet temperature curve of the working state figure that to fig. 3 gives in the present embodiment two refrigeration system and the super low-temperature refrigerator carrying corresponding pair of refrigeration system, by reference to the accompanying drawings 4, the intelligent control method of control system is described in detail as follows:
When device first is run or in-cabinet temperature is too high, CPU control relay V1 and V2 closes simultaneously, and two refrigeration system is started working simultaneously; When in-cabinet temperature is down to below design temperature, a certain refrigeration system that temperature control system is specified shuts down and enters resting state, and the relay that CPU controls this refrigeration system disconnects, and another refrigeration system enters state of activation simultaneously, starts rotational cycle timing;
The refrigeration system be activated in active state, when in-cabinet temperature is no more than temperature upper limit (as desired temperature is-86 DEG C, temperature fluctuation range is ± 2 DEG C, then the cabinet temperature upper limit is-84 DEG C), CPU sends open command to the compressor relay controlling this system, and the compressor in this system is in stopped status; Once in-cabinet temperature is higher than temperature upper limit (-84 DEG C), CPU sends close command to the compressor relay controlling this system, then the compressor starts running in this refrigeration system; When cabinet temperature is down to design temperature (-86 DEG C) again, compressor shuts down, and waits for next temperature cycles;
Until the time that the refrigeration system be activated enters state of activation reaches the rotational cycle of setting, the refrigeration system of original dormancy enters state of activation and starts pre-cooled, when pre-cooled reach the regular hour after, the refrigeration system be originally activated shuts down and enters resting state, until next rotational cycle.
As in accompanying drawing 3, after temperature reaches-86 DEG C, the first refrigeration system and the second refrigeration system achieve alternation, really achieve rotation alternately refrigeration; Pre-cooled system is guaranteed still effectively to keep the stable of in-cabinet temperature in the process switched in refrigeration system simultaneously; And whether drop in temperature setting range according to temperature and control compressor operation, both energy-conserving and environment-protective, also variations in temperature can be fed back effectively rapidly simultaneously, solve the problem of excessive temperature differentials in cabinet, in addition, also greatly increase the service life of compressor.
embodiment 3
The present embodiment is set forth the method for temperature control system failure judgement in the utility model, and accompanying drawing 5 is schematic flow sheets of the fault judgment method of the present embodiment, is described in detail as follows method for diagnosing faults of the present utility model below in conjunction with accompanying drawing 5:
(1) kernel control module sends status poll instruction to correlation module, comprising: send temperature sensing instruction to temperature sensing module; Door opening and closing state probe instructions is sent to switching value transmitting module; Alarm condition probe instructions is sent to alarm module; The instruction of power on/off state detection is sent to supply voltage judge module.
(2) each module acquires relevant information feed back to kernel control module.
(3) according to feedback information, kernel control module judges whether refrigeration system breaks down.
When carrying out breakdown judge, the relevant parameter related to and details as shown in table 2:
Relevant parameter in table 2 fault diagnosis and details
The concrete criterion of fault is as follows:
I. power on first, empty load running, report to the police without other, without power-off, without when opening the door, if there is the too high warning of cabinet temperature, then be diagnosed as system 1, system 2 breaks down simultaneously, failure code: FS1=1 (significant trouble appears in refrigeration system 1), FS2=1 (significant trouble appears in refrigeration system 2);
II. when normally using, there is high temperature alarm, exceed the not normal minute section FD of two-shipper and do not automatically terminate, and report to the police without other during this period, without power-off, without when opening the door, then be diagnosed as system 1, system 2 breaks down simultaneously, failure code: FS1=1, FS2=1;
In III .1 rotational cycle CR, there is high temperature alarm 2 times or more, between 2 high temperature alarms, have 1 shutdown at least, and report to the police without other, without power-off, without opening the door, then be diagnosed as the refrigeration system that this cycle is designated activation and occur catastrophe failure, failure code is 1, and the refrigeration system that this cycle is designated dormancy occurs that refrigeration performance declines, and failure code is 2 (if current activation system CS=1, FS1=1, FS2=2; If CS=2, FS2=1, FS1=2);
In an IV .1 rotational cycle, (in-cabinet temperature is higher than the temperature alarming upper limit to occur reporting to the police High Temperature Pre, but be also in the presignal delay phase, for High Temperature Pre warning stage, after alarm delay time section, start high temperature alarm) 3 times or more, between 3 High Temperature Pres are reported to the police, have 2 shutdown at least, and report to the police without other, without power-off, without opening the door, then be diagnosed as the refrigeration system that this cycle is designated activation and occur catastrophe failure, failure code is 1 (if current activation system CS=1, FS1=1; If CS=2, FS2=1);
In V .3 continuous rotational cycle, alarm free, without power-off, without open the door, if 1st, in 3 cycles, cabinet temperature never reached setting value ST, there is not high temperature alarm or pre-alarm yet, and at least 2 temperature reach setting value in the 2nd cycle, the refrigeration system refrigeration performance be then diagnosed as the 1st, running in 3 cycles declines, and failure code is 2 (if current activation system CS=1, FS1=2; If CS=2, FS2=2);
In VI .4 continuous rotational cycle, all do not shut down, also do not occur high temperature alarm or pre-alarm, and without other warnings, without power-off, without opening the door, be then diagnosed as the refrigeration performance decline simultaneously of system 1, system 2, failure code FS1=2, FS2=2;
If VII. there is catastrophe failure (failure code is 1) in one of two cover refrigeration systems, then another refrigeration system is forced sustained activation, if now there is high temperature alarm, exceed the not normal minute Duan Wei of two-shipper to automatically terminate, and report to the police without other during this period, without power-off, without opening the door, then be diagnosed as current activation system and occur catastrophe failure, failure code FS1=1FS2=1;
If VIII. there is catastrophe failure (failure code is 1) in one of two cover refrigeration systems, then another refrigeration system is forced sustained activation, 2 continuous rotational cycle (timing, not rotation) in all do not shut down, simultaneously there is not high temperature alarm or pre-alarm, and report to the police without other, without power-off, without enabling, then be diagnosed as this cooling system hydraulic performance decline, failure code be 2 (if FS1=1, then current activation system CS=2, failure code FS2=2; If FS2=1, then current activation system CS=1, failure code FS1=2);
Ⅸ. if one of two cover refrigeration systems occur that refrigeration performance declines (failure code is 2), then another refrigeration system is forced sustained activation, if there is high temperature alarm or pre-alarm 3 times or more, between 3 High Temperature Pre warnings or pre-alarm, have 2 shutdown at least, and without other report to the police, without power-off, without enabling, be then diagnosed as this cooling system hydraulic performance decline, failure code FS1=2, FS2=2;
Ⅹ. if one of two cover refrigeration systems occur that refrigeration performance declines (failure code is 2), then another refrigeration system is forced sustained activation, if there is high temperature alarm or pre-alarm 3 times or more, report to the police or no shutdown between pre-alarm at 3 High Temperature Pres, and report to the police without other, without power-off, without opening the door, then be diagnosed as dual system and all occur catastrophe failure, failure code FS1=1, FS2=1;
Ⅺ. if one of two cover refrigeration systems occur that refrigeration performance declines (failure code is 2), then another refrigeration system is forced sustained activation, 2 continuous rotational cycle (timing, not rotation) in all do not shut down, simultaneously there is not high temperature alarm or pre-alarm, and report to the police without other, without power-off, without enabling, be then diagnosed as this cooling system hydraulic performance decline, failure code FS1=2, FS2=2;
Ⅻ. if one of two cover refrigeration systems occur that refrigeration performance declines (failure code is 2), then another refrigeration system is forced sustained activation, there are 2 continuous rotational cycle (timing after high temperature alarm or pre-alarm, not rotation) in all do not shut down, and report to the police without other, without power-off, without opening the door, then be diagnosed as dual system and all occur catastrophe failure, failure code FS1=1, FS2=1;
embodiment 4
The present embodiment is that control system is to the response action of fault on the basis of embodiment 3, and the correlative code related to is see table 1 above.The refrigeration system initialization system that the utility model relates to is to the control logic of fault higher than other all control logics, and to guarantee to break down once refrigeration system, failure response action override carries out.
The response action of system to fault is as follows:
[FS1=1] (there is significant trouble in refrigeration system 1), FS2=0 (refrigeration system 2 is freezed completely normal), current activation system is forced to switch to system 2, and (no matter for which cover, namely no matter CS equals several to current activation system, CS=2), the compressor relay (V1) of the first refrigeration system thoroughly disconnects, the compressor relay (V2) of the second refrigeration system is activated by cabinet temperature control, refrigeration system 1 enters complete dormancy, transfer on V2 relay for V1 relay closes control instruction, dual system rotation runs and is prohibited (BT=0), rotational cycle RT stops timing, " FS11 " and cabinet temperature are alternately glimmered, until after system 1 failture evacuation, artificial power-off also restarts temperature controller,
[FS1=1] (there is significant trouble in refrigeration system 1), FS2=2 (decline of refrigeration system 2 refrigeration performance), current activation system is forced to switch to system 2 (CS=2), V1 relay thoroughly disconnects, V2 relay is activated by cabinet temperature control, refrigeration system 1 enters complete dormancy, transfer on V2 relay for V1 relay closes control instruction, dual system rotation runs and is prohibited (BT=0), rotational cycle RT stops timing, " FS11 ", " FS22 " and cabinet temperature are alternately glimmered, until two covers are after breakdown of refrigeration system are all excluded, artificial power-off also restarts temperature controller,
[FS1=1], FS2=1 (refrigeration system 1,2 occurs significant trouble simultaneously), dual system is activated simultaneously (CS=3), V1, V2 relay is activated by cabinet temperature control simultaneously, dual system rotation runs and is prohibited (BT=0), and rotational cycle RT stops timing, and " FS11 ", " FS21 " and cabinet temperature are alternately glimmered, until two covers are after breakdown of refrigeration system are all excluded, artificial power-off also restarts temperature controller;
[FS1=2] (decline of refrigeration system 1 refrigeration performance), FS2=0 (refrigeration system 2 is freezed completely normal), current activation system is forced to switch to system 2 (CS=2), V1 relay thoroughly disconnects, V2 relay is activated by cabinet temperature control, refrigeration system 1 enters complete dormancy, transfer on V2 relay for V1 relay closes control instruction, dual system rotation runs and is prohibited (BT=0), rotational cycle RT stops timing, " FS12 " and cabinet temperature are alternately glimmered, until after system 1 failture evacuation, artificial power-off also restarts temperature controller;
[FS1=2], FS2=2 (refrigeration system 1,2 simultaneously refrigeration performance declines), dual system is activated simultaneously (CS=3), V1, V2 relay is activated by cabinet temperature control simultaneously, dual system rotation runs and is prohibited (BT=0), and rotational cycle RT stops timing, and " FS12 ", " FS22 " and cabinet temperature are alternately glimmered, until two covers are after breakdown of refrigeration system are all excluded, artificial power-off also restarts temperature controller;
[FS1=2] (decline of refrigeration system 1 refrigeration performance), FS2=1 (significant trouble appears in refrigeration system 1), current activation system is forced to switch to system 1 (CS=1), V2 relay thoroughly disconnects, V1 relay is activated by cabinet temperature control, refrigeration system 2 enters complete dormancy, transfer on V1 relay for V2 relay closes control instruction, dual system rotation runs and is prohibited (BT=0), rotational cycle RT stops timing, " FS12 ", " FS21 " and cabinet temperature are alternately glimmered, until two covers are after breakdown of refrigeration system are all excluded, artificial power-off also restarts temperature controller,
[FS1=0] (refrigeration system 1 is freezed completely normal), FS2=2 (decline of refrigeration system 2 refrigeration performance), current activation system is forced to switch to system 1 (CS=1), V2 relay thoroughly disconnects, V1 relay is activated by cabinet temperature control, refrigeration system 2 enters complete dormancy, transfer on V1 relay for V2 relay closes control instruction, dual system rotation runs and is prohibited (BT=0), rotational cycle RT stops timing, " FS22 " and cabinet temperature are alternately glimmered, until after refrigeration system 2 fault is excluded, artificial power-off also restarts temperature controller,
[FS1=0] (refrigeration system 1 is freezed completely normal), FS2=1 (significant trouble appears in refrigeration system 1), current activation system is forced to switch to system 1 (CS=1), V2 relay thoroughly disconnects, V1 relay is activated by cabinet temperature control, refrigeration system 2 enters complete dormancy, transfer on V1 relay for V2 relay closes control instruction, dual system rotation runs and is prohibited (BT=0), rotational cycle RT stops timing, " FS21 " and cabinet temperature are alternately glimmered, until after refrigeration system 2 fault is excluded, artificial power-off also restarts temperature controller,
All failure response actions are summarized as follows shown in table 3:
Table 3 system failure response action
One of ordinary skill in the art will appreciate that the hardware that the various method and structures of above-described embodiment can carry out instruction relevant by program has come.The explanation of above embodiment just understands core concept of the present utility model for helping, and does not form restriction of the present utility model; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, change in specific embodiments and applications all should fall into protection domain of the present utility model.
Claims (10)
1. one kind has two refrigeration systems of Based Intelligent Control and fault diagnosis functions, comprise refrigeration system and temperature control system, refrigeration system comprises the first refrigeration system and the second refrigeration system that two covers completely independently arrange, it is characterized in that: described temperature control system and two overlaps refrigeration system and is connected, select startup first refrigeration system or the second refrigeration system according to real-time working condition parameter automated intelligent or start two cover refrigeration systems simultaneously; According to real-time working condition parameter intelligent, described temperature control system judges whether two cover refrigeration systems break down and fault type, and carry out failure response.
2. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 1, is characterized in that: described temperature control system comprises temperature collect module, controls to arrange module, switching value transmitting module, display module, alarm module, supply module and kernel control module; Described temperature collect module, display module, control arrange module, switching value transmitting module, alarm module, supply module are connected with kernel control module respectively.
3. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 2, is characterized in that: described kernel control module is CPU.
4. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 2, is characterized in that: described temperature collect module comprises temperature transmitter and Temperature sampler.
5. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 2, is characterized in that: described display module is display screen.
6. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 2, is characterized in that: described switching value transmitting module comprises switching value transmitter (C3) and cabinet door switch (S1-S3).
7. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 2, is characterized in that: described alarm module at least comprises buzzer siren (ALM).
8. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 2, is characterized in that: described supply module comprises powered battery module, ac power supply module, main board power supply relay and accumulate electric capacity.
9. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 2, is characterized in that: described temperature control system can also comprise pressure acquisition module, clock module, communication module and voltage compensation module; Described pressure acquisition module, clock module, communication module are connected with kernel control module respectively with voltage compensation module.
10. a kind of two refrigeration systems with Based Intelligent Control and fault diagnosis functions according to claim 2 and 9, is characterized in that: described communication module support WIFI, Zigbee, 485, the communication mode of Ethernet and GPRS.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042967A (en) * | 2015-05-26 | 2015-11-11 | 安徽中科都菱商用电器股份有限公司 | Double-refrigerating system with intelligent control and fault diagnosis functions |
| CN108351130A (en) * | 2015-11-26 | 2018-07-31 | 多美达瑞典有限公司 | Combination cooling equipment |
| CN114935238A (en) * | 2022-03-01 | 2022-08-23 | 深圳天溯计量检测股份有限公司 | Intelligent monitoring and calibrating system for refrigerator temperature acquisition |
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2015
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042967A (en) * | 2015-05-26 | 2015-11-11 | 安徽中科都菱商用电器股份有限公司 | Double-refrigerating system with intelligent control and fault diagnosis functions |
| CN108351130A (en) * | 2015-11-26 | 2018-07-31 | 多美达瑞典有限公司 | Combination cooling equipment |
| CN114935238A (en) * | 2022-03-01 | 2022-08-23 | 深圳天溯计量检测股份有限公司 | Intelligent monitoring and calibrating system for refrigerator temperature acquisition |
| CN114935238B (en) * | 2022-03-01 | 2022-12-23 | 深圳天溯计量检测股份有限公司 | Intelligent monitoring and calibrating system for refrigerator temperature acquisition |
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