CN110617668A - Intelligent refrigeration equipment for refrigeration house - Google Patents
Intelligent refrigeration equipment for refrigeration house Download PDFInfo
- Publication number
- CN110617668A CN110617668A CN201910895751.7A CN201910895751A CN110617668A CN 110617668 A CN110617668 A CN 110617668A CN 201910895751 A CN201910895751 A CN 201910895751A CN 110617668 A CN110617668 A CN 110617668A
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- module
- condenser
- temperature
- sensor
- refrigeration
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 80
- 230000006835 compression Effects 0.000 claims abstract description 54
- 238000007906 compression Methods 0.000 claims abstract description 54
- 238000012544 monitoring process Methods 0.000 claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 32
- 238000004140 cleaning Methods 0.000 claims abstract description 29
- 238000009833 condensation Methods 0.000 claims abstract description 21
- 230000005494 condensation Effects 0.000 claims abstract description 21
- 238000001704 evaporation Methods 0.000 claims abstract description 12
- 230000008020 evaporation Effects 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims description 34
- 238000003860 storage Methods 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 16
- 238000007710 freezing Methods 0.000 description 9
- 230000008014 freezing Effects 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000005856 abnormality Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/008—Alarm devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G1/00—Non-rotary, e.g. reciprocated, appliances
- F28G1/02—Non-rotary, e.g. reciprocated, appliances having brushes
Abstract
The invention relates to the field of refrigerating devices, and aims to provide an intelligent refrigerating device for a refrigeration house, its technical scheme main points are including the cabinet body, cabinet body surface is provided with and is used for converting the temperature signal in the freezer into the first temperature sensor of signal of telecommunication output, first temperature sensor's output electric connection has control module, control module's output is connected with gas compression module, gas compression module's output is connected with the condensation module, the output of condensation module is connected with the evaporation module, the output and the input of gas compression module of evaporation module are connected, be provided with the dust sensor who is used for dust and filth on the fin of monitoring condenser in the condensation module, the output of dust sensor and control module's input electric connection, be provided with the cleaning device who is used for cleaning the fin on the condenser of condensation module, control module control cleaning device cleans the fin of condenser. The invention is suitable for refrigeration of the refrigeration house.
Description
Technical Field
The invention relates to the field of refrigerating devices, in particular to an intelligent refrigerating device for a refrigeration house.
Background
The cold storage is composed of a storage body, a refrigerating unit, an evaporator, an electric control box, an expansion valve, a copper pipe, a refrigerant, a storage lamp and other electric devices. When the refrigeration equipment of the refrigeration house refrigerates, refrigerant from the evaporator enters an air suction port of the compressor, uniformly flows through the shell of the first motor, takes away heat of the first motor, and compresses discharged high-temperature and high-pressure gas to enter a condenser of the outdoor unit; cooling water flows in the cooling pipe, so that the refrigerant gas is continuously supercooled and condensed, and exchanges heat with the outside air to be cooled into low-temperature high-pressure liquid; the liquid is discharged from the bottom of the condenser, flows through the heat insulation valve, is filtered by the dryer, passes through the electronic expansion valve, is slightly flashed, and is changed into low-temperature and low-pressure liquid; the low-temperature low-pressure liquid enters an evaporator of the indoor unit, exchanges heat with indoor hot air, is evaporated into high-temperature low-pressure gas, enters the compressor from a suction port of the compressor, and continues the circulation of the first step.
Fins are generally added on the outer wall of the condenser of the refrigeration equipment to assist in heat dissipation so as to improve the heat dissipation effect. However, the fins are easy to be contaminated by dust and dirt, and should be cleaned in time, so that the refrigeration effect of the refrigeration equipment is prevented from being influenced by the blocking phenomenon, the stored articles can not be stored for a long time, and the articles such as food and the like are often rotten, thereby causing economic loss.
Disclosure of Invention
The invention aims to provide intelligent refrigeration equipment for a refrigeration house, which can clean dust and dirt on fins of a condenser in time and keep the fins clean, so that the refrigeration effect of the refrigeration house is better, articles can be stored for a long time, and the economic loss is reduced.
The technical purpose of the invention is realized by the following technical scheme: an intelligent refrigeration device for a refrigeration house comprises a cabinet body, wherein a first temperature sensor used for converting temperature signals in the refrigeration house into electric signal output is arranged on the surface of the cabinet body, the output end of the first temperature sensor is electrically connected with a control module used for receiving, processing and sending signals, the output end of the control module is connected with a gas compression module used for compressing low-pressure gas into high-temperature high-pressure gas and generating power, the output end of the gas compression module is connected with a condensation module used for condensing the high-temperature high-pressure gas into middle-temperature high-pressure liquid and then shunting the liquid into low-temperature low-pressure liquid, the output end of the condensation module is connected with an evaporation module used for carrying out heat exchange refrigeration on the low-temperature low-pressure liquid and outside air, the output end of the evaporation module is connected with the input end of the gas compression module, and a dust sensor used for monitoring dust, the output end of the dust sensor is electrically connected with the input end of the control module, a cleaning device used for cleaning fins is arranged on the condenser of the condensation module, and the control module controls the cleaning device to clean the fins of the condenser.
By adopting the technical scheme, the dust sensor monitors the dust and dirt conditions on the fins of the condenser in real time and inputs an electric signal to the control module; when the amount of dust and dirt on the fins reaches a preset value, the control module senses an electric signal and outputs a control signal to the cleaning device to control the cleaning device to start and clean the fins of the condenser; when dust and dirt on the fins of the condenser are lower than preset values, the dust sensor inputs electric signals to the control module, and the control module controls the cleaning device to stop moving and recover the initial state to wait for next cleaning; meanwhile, the first temperature sensor monitors the temperature condition in the cold storage in real time and converts the temperature condition into an electric signal to be input into the control module, when the temperature in the cold storage is higher than a preset value, the control module senses the electric signal and outputs the control signal to the gas compression module, the gas compression module is started, low-pressure gas exchanges heat with outside air after passing through the gas compression module, the condensation module and the evaporation module and then is input into the gas compression module to circularly work so as to achieve the aim of refrigerating the interior of the cold storage, when the temperature in the cold storage reaches the preset value, the first temperature sensor inputs the electric signal to the control module, the control module controls the gas compression module to stop working and stop refrigerating, and then intelligent refrigerating equipment for the cold storage can timely clean dust and dirt on fins of a condenser, so that the fins are kept clean and blocking phenomena are avoided, so that the refrigeration effect of freezer is better, simultaneously, the temperature regulation and control in the freezer is more sensitive accurate, and the temperature in the freezer can be maintained in a suitable within range to guarantee that article can be stored for a long time, reduce economic loss.
Preferably, cleaning device includes the worm, with worm meshing's rack, first motor and brush, the output shaft of first motor with the tip fixed connection of worm, the brush hair of brush is followed the direction of height of condenser is arranged and is just right respectively the fin of condenser, the rack with the back fixed connection of brush just makes the brush hair of brush with the fin butt of condenser.
By adopting the technical scheme, the first motor is started, the output shaft of the first motor rotates to drive the worm fixed with the first motor to rotate, the worm drives the rack meshed with the worm to move along the length direction of the worm, the brush is driven to move towards the direction close to the fins of the condenser, and the fins are cleaned so as to achieve the purpose of cleaning the fins.
Preferably, a vibration motor is fixed to the back of the brush.
Through adopting above-mentioned technical scheme, when the vibrating motor at the brush back during operation, drive the brush vibrations to the fin that makes the brush constantly reciprocal scratch condenser, and then the brush is better to the clean effect of the fin of condenser.
Preferably, a slide rail with the length larger than that of the condenser is fixed at the position opposite to the fins of the condenser, a slide block is connected in the slide rail in a sliding mode, an electric cylinder fixedly connected with the side face of the slide block is horizontally fixed in the slide rail, and the first motor is fixedly installed in the slide block.
Through adopting above-mentioned technical scheme, the electric jar starts, drives rather than the fixed slider and slides along the length direction of slide rail, and the slider drives worm, rack and brush motion for the brush hair of brush removes along the length direction of condenser, and the brush reciprocates to scratch the fin of condenser, and is better to the clean effect of the fin of condenser.
Preferably, a monitoring module for monitoring whether the compressor is abnormal is arranged in the gas compression module.
Through adopting above-mentioned technical scheme, the monitoring module monitors the compressor in the gas compression module to and the condition whether acquireing the compressor unusual in time, guarantee the normal work that is used for the intelligent refrigeration plant of freezer, refrigeration plant maintains freezer temperature at a invariable temperature range better, and the cold-stored effect of freezer is better.
Preferably, the monitoring module includes speed sensor, level sensor, pressure sensor and second temperature sensor, speed sensor monitors the operating speed of compressor, level sensor monitors the oil level liquid level height of compressor, pressure sensor monitors the low pressure size of compressor, the temperature size of second temperature sensor monitoring compressor, speed sensor level sensor pressure sensor with second temperature sensor with control module's input electric connection.
Through adopting above-mentioned technical scheme, speed sensor real-time supervision compressor's running speed, level sensor real-time supervision compressor's oil level liquid level, pressure sensor real-time supervision compressor's low pressure size, the temperature size of second temperature sensor real-time supervision compressor to whether the realization is unusual to the compressor in the gas compression module carries out the purpose of monitoring, and monitoring effect is good.
Preferably, the output end of the control module is electrically connected with an alarm module playing a role of alarming, and the alarm module is controlled by the monitoring module.
Through adopting above-mentioned technical scheme, when monitoring module monitors the compressor in the gas compression module unusual, monitoring module exports the signal of telecommunication to control module, and control module exports control signal to alarm module, and alarm module reminds the staff in time to carry out inspection and maintenance to the compressor in the gas compression module.
Preferably, the compressor of the gas compression module is controlled by a first switching member, which is controlled by the monitoring module.
By adopting the technical scheme, when the monitoring module monitors that the compressor in the gas compression module is abnormal, the monitoring module outputs an electric signal to the control module, the control module outputs a control signal to the first switch piece, and the switch element is switched off, so that the aim of timely cutting off the working power supply of the gas compression module is fulfilled, and the loss caused by the abnormality to the refrigeration equipment is reduced.
In conclusion, the invention has the following beneficial effects:
1. the intelligent refrigeration equipment for the refrigeration house can clean dust and dirt on the fins of the condenser in time, so that the fins are kept clean, and the refrigeration effect of the refrigeration house is better; meanwhile, the intelligent refrigeration equipment for the refrigeration house is more sensitive and accurate in regulation and control of the temperature in the refrigeration house, so that the long-time storage of articles is ensured, and the economic loss is reduced;
2. the vibration motor works to drive the hairbrush to vibrate, and the hairbrush has a better cleaning effect on the fins of the condenser;
3. the electric cylinder enables the bristles of the brush to move along the length direction of the condenser, and the brush has a better cleaning effect on the fins of the condenser;
4. the monitoring module monitors the compressor in the gas compression module, and timely acquires whether the compressor is abnormal or not, so that the normal work of the intelligent refrigeration equipment for the refrigeration house is ensured;
5. when the monitoring module monitors that the compressor in the gas compression module is abnormal, the alarm module reminds a worker to check and maintain the compressor in the gas compression module in time;
6. when the monitoring module monitors that the compressor in the gas compression module is abnormal, the first switch element achieves the purpose of timely cutting off the working power supply of the gas compression module, and the loss of refrigeration equipment due to the abnormality is reduced.
Drawings
Fig. 1 is an external schematic view of an intelligent refrigeration apparatus for a refrigerator;
FIG. 2 is a schematic view of the interior of an intelligent refrigeration unit for a refrigerated storage;
FIG. 3 is a schematic view of the cleaning device cleaning the fins of the condenser;
FIG. 4 is a schematic view of the structure of the cleaning device;
FIG. 5 is a refrigerating flow chart of an intelligent refrigerating device for a refrigerator;
fig. 6 is a schematic diagram of the circuit connection relationship of the intelligent refrigeration equipment for the refrigeration house.
In the figure: 1. a cabinet body; 2. a first temperature sensor; 3. a warning light; 4. a control panel; 5. a button; 6. a gas compression module; 7. a condensing module; 71. a condenser; 72. a fin; 8. an evaporation module; 9. a dust sensor; 10. a worm; 11. a rack; 12. a first motor; 13. a brush; 14. a vibration motor; 15. a slide rail; 16. a slider; 17. an electric cylinder; 18. a threaded rod; 19. drying the filter; 20. a flow divider; 21. a cleaning device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the intelligent refrigeration equipment for a refrigeration house disclosed by the invention comprises a cuboid cabinet body 1, wherein a first temperature sensor 2 is arranged on the front surface of the cabinet body 1, and the first temperature sensor 2 is used for monitoring a temperature signal in the refrigeration house in real time and converting the temperature signal into an electric signal.
The front of the cabinet body 1 is also provided with a warning light 3, a control panel 4 and a button 5, the warning light 3 is positioned beside the first temperature sensor 2, and the button 5 has seven and is respectively electrically connected in the control panel 4.
Referring to fig. 2 and 3, be provided with gas compression module 6 in the cabinet body 1, condensation module 7 and evaporation module 8, gas compression module 6 is used for compressing into high temperature high-pressure gas with low pressure gas and provides power for circulating refrigeration, gas compression module 6's output is connected with condensation module 7's input, condensation module 7 is used for shunting low temperature low pressure liquid behind the high temperature high pressure gas condensation becomes medium temperature high pressure liquid, condensation module 7's output is connected with evaporation module 8's input, evaporation module 8 is used for making low temperature low pressure liquid and outside air carry out the heat exchange refrigeration.
And a monitoring module for monitoring whether the compressor is abnormal is also arranged in the gas compression module 6.
The monitoring module comprises a speed sensor, a liquid level sensor, a pressure sensor and a second temperature sensor, the speed sensor, the liquid level sensor, the pressure sensor and the second temperature sensor are located at the inner top (not shown in the figure) of the compressor, the speed sensor monitors the running speed of the compressor, the liquid level sensor monitors the oil level and the liquid level of the oil level of the compressor, the pressure sensor monitors the low-pressure of the compressor, and the second temperature sensor monitors the temperature of the compressor.
The low pressure of the freezer compressor should be kept at the medium temperature of more than 1 kgf/cm2 and the low temperature of 0 ~ 1 kgf/cm2, while the high pressure is 10 ~ 15kgf/cm2, and the pressure should not exceed 20 kgf/cm2 in principle, the oil level of the compressor should be between the upper and lower limits, and the oil surface has no turbidity, if the oil surface is turbid or the oil surface is lowered, the treatment should be carried out timely to avoid the poor lubrication effect.
The first temperature sensor 2 and the second temperature sensor are of the type WRF-101 or WRF2-101, the speed sensor is of the type SCA1000-D01, the pressure sensor is of the type PT124B-232, and the liquid level sensor is of the type FX81. IXETBFHXKMXX.
Referring to fig. 3, the condensing module 7 comprises a condenser 71, a dust sensor 9 is mounted on a fin 72 of the condenser 71, the dust sensor 9 is of a type DSM501A, and the dust sensor 9 is used for monitoring dust and dirt on the fin 72 of the condenser 71 in real time.
Slide rails 15 having a length greater than that of the condenser 71 are fixed to positions facing the fins 72 of the condenser 71, and notches of the slide rails 15 face the fins 72 of the condenser 71.
Referring to fig. 4, a slider 16 is slidably connected to the slide rail 15, an electric cylinder 17 fixedly connected to a side surface of the slider 16 is fixed to one end of a notch of the slide rail 15, the electric cylinder 17 is horizontally disposed, the slider 16 is driven to slide along a longitudinal direction of the slide rail 15, and the fin 72 is reciprocally cleaned along the longitudinal direction of the fin 72 of the condenser 71.
The sliding block 16 is provided with an opening on one surface facing the fin 72 of the condenser 71, the sliding block 16 is internally provided with a first motor 12 which is horizontally arranged, an output shaft of the first motor 12 faces the fin 72 of the condenser 71, an output shaft of the first motor 12 is fixedly provided with a horizontally arranged worm 10, the worm 10 is meshed with a rack 11, and the sliding rail 15 is provided with an opening corresponding to the sliding range of the sliding block 16 on one surface facing the notch of the sliding rail.
The brush 13 is fixed at one end of the rack 11 close to the fin 72 of the condenser 71, the bristles of the brush 13 are arranged at intervals along the height direction of the condenser 71 and respectively face the fin 72 of the condenser 71, and the rack 11 is fixedly connected with the back surface of the brush 13 and enables the bristles of the brush 13 to be abutted against the fin 72 of the condenser 71. The brush 13 and the rack 11 are detachably connected through a threaded rod 18 (see fig. 3), the threaded rod 18 is fixed on the back surface of the brush 13, and the rack 11 is provided with a threaded hole (not shown) in threaded connection with the threaded rod 18.
The worm 10, the rack 11, the first motor 12 and the fur brush 13 constitute a cleaning means for cleaning the fins 72.
The back of the brush 13 is fixed with a vibration motor 14 to drive the brush 13 to vibrate, so that the bristles of the brush 13 can reciprocally scrape the fins 72 up and down.
Referring to fig. 5, the gas compression module 6 includes a thermostat, a heater, a capacitor, an overload and overheat protector, a compressor motor winding, and a relay, which are sequentially connected in series.
The thermostat can effectively control the gas compression module 6 to be at a safe working temperature in the operation process, thereby being convenient for prolonging the service life of the gas compression module 6.
Overload overheat protector carries out real-time protection to gas compression module 6, prevent to appear overloading overheated condition in the gas compression module 6, 6 drive machinery of effectual protection gas compression module and load, prolong 6 life of gas compression module, and simultaneously, be convenient for control the temperature in the gas compression module 6, be convenient for constitute the accessory effectively to the whole in the gas compression module 6 and maintain, thereby be favorable to the gas compression module 6 to stabilize safe and reliable's and carry out long-time operation.
The condensation module 7 comprises an anti-dew pipe, a defrosting pipe, an auxiliary condenser 71 and a main condenser 71 which are sequentially connected in series, the output end of the relay is connected with the anti-dew pipe, and one end of the main condenser 71 is connected with the flow divider 20 through the drying filter 19.
The main condenser 71 and the sub-condenser 71 are used for condensation to ensure the refrigeration effect of the refrigeration equipment. The dew-proof pipe and the defrosting pipe can quickly remove the dew condensation and frost formation phenomena of the compressed gas on the main condenser 71 and the auxiliary condenser 71, and are beneficial to prolonging the service life of the main condenser 71 and the auxiliary condenser 71.
The drying filter 19 has good liquid pipe protection and cleaning capability, can remove moisture and acid, has the capability of dissolving contaminants such as moisture or acid, and has a joint form of ODF (optical distribution framework) and safe working pressure within 3.5 Mpa.
The flow divider 20 can disperse the compressed refrigerant gas after filtration, and the refrigeration, fresh-keeping and freezing effects of the refrigeration house are better.
The evaporation module 8 comprises a refrigeration evaporator, a temperature-variable chamber evaporator, a freezing evaporator, a gas-liquid separator and a confluence device which are sequentially connected in series.
The input of cold-stored evaporimeter links to each other with the output of shunt 20 through cold-stored capillary, the input port department of cold-stored capillary is equipped with cold-stored solenoid valve, the input of temperature-variable chamber evaporimeter passes through the temperature-variable chamber capillary and links to each other with the output of shunt 20, the input port department of temperature-variable chamber capillary is equipped with the temperature-variable chamber solenoid valve, the input of freezing evaporimeter passes through the freezing capillary and links to each other with the output of shunt 20, the input port department of freezing capillary is equipped with the freezing solenoid valve, the output of converging the ware links to each other.
The refrigeration evaporator, the temperature-variable chamber evaporator, the freezing evaporator, the refrigeration electromagnetic valve, the temperature-variable chamber electromagnetic valve and the freezing electromagnetic valve can quickly control the temperature in the refrigeration house, so that the refrigeration house can realize the purposes of refrigeration, freezing and fresh keeping.
Gas-liquid separator and cylinder manifold can realize the separation of gas and liquid fast, can effectual storage liquid after the separation, can the cold air after the fast dispersion separation to be convenient for realize the refrigeration of freezer.
Referring to fig. 6, the output end of the first temperature sensor 2 is electrically connected with a control module for receiving, processing and sending signals, the control module is a single chip microcomputer MCS-51, intelligent control of the refrigeration equipment is realized through a hardware circuit and a programming program, and the refrigeration equipment has the advantages of low cost, strong control function, high integration level, small volume, good reliability and low power consumption.
The speed sensor, the liquid level sensor, the pressure sensor and the second temperature sensor are electrically connected with the input end of the single chip microcomputer MCS-51 (not shown in the figure).
The power supply end of the first temperature sensor 2 is connected with a power supply VCC, the output end of the first temperature sensor 2 is connected with the positive input end of an operational amplifier U1 through a resistor R2, the output end of the first temperature sensor 2 is grounded through a resistor R1, the reverse input end of the operational amplifier U1 is grounded through a resistor R3, a resistor R4 and a potentiometer Rp1 are connected between the positive input end and the output end of an operational amplifier U1, the resistor R4 is connected with the potentiometer Rp1 in series, the resistance of the potentiometer Rp1 is adjustable and used for adjusting the amplification coefficient of the operational amplifier U1, and the output end of the operational amplifier U1 is connected with a pin P1.0 of the singlechip-51.
The P3.6 pin of the single chip microcomputer MCS-51 is connected with a first switch piece used for controlling the compressor of the gas compression module 6 to work, and the first switch piece is controlled by the monitoring module.
The first switch piece comprises a relay KT1 and a triode VT1, the triode VT1 is NPN type, a P3.6 pin of the singlechip MCS-51 is connected with a base electrode of the triode VT1 through a resistor R5, an emitting electrode of the triode VT1 is grounded, a collecting electrode of the triode VT1 is connected with a power supply VCC through the relay KT1, two ends of the relay KT1 are connected with a diode D1 in parallel, the diode D1 is a freewheeling diode to play a protection role on the relay KT1 and avoid the relay KT1 from being burnt out, and a time-delay disconnection normally-open contact KT1-1 of the relay KT1 is connected in an electrifying loop of a compressor of the gas compression module 6.
The power end of the dust sensor 9 is connected with a power VCC, the output end of the dust sensor 9 is connected with the positive input end of an operational amplifier U2 through a resistor R7, the output end of the dust sensor 9 is grounded through a resistor R6, the reverse input end of the operational amplifier U2 is grounded through a resistor R8, a resistor R9 and a potentiometer Rp2 are connected between the positive input end and the output end of an operational amplifier U2, the resistor R9 is connected with the potentiometer Rp2 in series, and the output end of the operational amplifier U2 is electrically connected with a P1.1 pin of the singlechip MCS-51.
The P3.7 pin of the singlechip MCS-51 is connected with a second switch piece for controlling the work of the cleaning device 21.
The second switch component comprises a relay KT2 and a triode VT2, the triode VT2 is NPN type, a P3.7 pin of the singlechip MCS-51 is connected with a base electrode of the triode VT2 through a resistor R10, an emitting electrode of the triode VT2 is grounded, a collecting electrode of the triode VT2 is connected with a power supply VCC through the relay KT2, two ends of the relay KT2 are connected with a diode D2 in parallel, the diode D2 is a freewheeling diode to protect the relay KT2, and a time-delay disconnection normally-open contact KT2-1 of the relay KT2 is connected in an electrifying loop of the first motor 12, the electric cylinder 17 and the vibration motor 14 of the cleaning device 21.
The P3.5 pin of the singlechip MCS-51 is connected with a power supply VCC through a bulb of the warning lamp 3 and a resistor R11, and the bulb of the warning lamp 3 is connected with a resistor R11 in series.
The bulb of the warning lamp 3 and the resistor R11 form an alarm module to play a role of alarm, and the alarm module is controlled by the monitoring module.
The implementation principle of the embodiment is as follows:
the dust sensor 9 monitors the dust and dirt on the fins 72 of the condenser 71 in real time and inputs an electric signal to the single chip microcomputer MCS-51.
When the amount of dust and dirt on the fins 72 reaches a preset value, a pin P1.1 of the singlechip MCS-51 senses an electric signal and outputs a control signal to a pin P3.7, the singlechip MCS-51 is conducted according to a pre-programmed program, the triode VT2 is conducted, the relay KT2 is conducted, the time-delay disconnection normally-open contact KT2-1 is closed, the first motor 12 and the electric cylinder 17 are controlled to be started, the first motor 12 drives the worm 10 to rotate, and the worm 10 drives the rack 11 to move towards the direction close to the fins 72 of the condenser 71, so that the brush 13 cleans the fins 72 of the condenser 71; the electric cylinder 17 pushes the sliding block 16 to slide along the length direction of the sliding rail 15, the sliding block 16 drives the rack 11 to move, so that the brush 13 reciprocates along the length direction of the condenser 71 fins 72, meanwhile, the vibration motor 14 is controlled to be started, the brush 13 is driven to vibrate in a reciprocating mode along the height direction of the condenser 71, and the cleaning effect is better.
When the dust and dirt on the fins 72 of the condenser 71 are lower than the preset values, the dust sensor 9 inputs an electric signal to the single chip microcomputer MCS-51, and the single chip microcomputer MCS-51 controls the first motor 12, the electric cylinder 17 and the vibration motor 14 to stop moving, so that the brush 13 returns to the initial position to wait for the next cleaning.
The first temperature sensor 2 monitors the temperature condition in the cold storage in real time, converts the temperature condition into an electric signal and inputs the electric signal into the single chip microcomputer MCS-51.
When the temperature in the refrigerator is higher than a preset value, a P1.0 pin of the singlechip MCS-51 senses an electric signal and outputs a control signal to a P3.6 pin, the triode VT1 is conducted, the relay KT1 is conducted, the time-delay disconnection normally-open contact KT1-1 is closed, an electrifying loop of a compressor of the gas compression module 6 is conducted, and the gas compression module 6 is started.
The low-pressure gas is subjected to heat exchange with the outside air after passing through the gas compression module 6, the condensation module 7 and the evaporation module 8 and then is input into the gas compression module 6 for internal circulation work, so that the aim of refrigerating the inside of the refrigeration house is fulfilled.
When the temperature in the cold storage reaches a preset value, the first temperature sensor 2 inputs an electric signal to the single chip microcomputer MCS-51 to control the gas compression module 6 to stop working, and refrigeration stops.
And a speed sensor, a liquid level sensor, a pressure sensor and a second temperature sensor in the monitoring module are used for monitoring the working condition of the compressor of the gas compression module 6 in real time.
When the compressor of the gas compression module 6 is abnormal, the speed sensor or the liquid level sensor or the pressure sensor or the second temperature sensor inputs an electric signal to the single chip microcomputer MCS-51, and the single chip microcomputer MCS-51 outputs a control signal to the P3.5 pin and the P3.6 pin, so that the gas compression module 6 stops working, the bulb of the warning lamp 3 emits light, and a worker is reminded to check and maintain the compressor in the gas compression module 6 in time.
Furthermore, the intelligent refrigeration equipment for the refrigeration house can clean dust and dirt on the fins 72 of the condenser 71 in time, so that the fins 72 are kept clean, the blockage phenomenon is avoided, and the refrigeration effect of the refrigeration house is better; simultaneously, refrigeration plant is more sensitive accurate to the temperature regulation and control in the freezer, and the temperature in the freezer can be maintained in a suitable within range, and refrigeration plant also can in time acquire whether the compressor is unusual, warns the staff and cuts off working power supply, guarantees the normal work that is used for the intelligent refrigeration plant of freezer, and then the article in the freezer can be stored for a long time, reduces economic loss.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides an intelligent refrigeration plant for freezer, includes cabinet body (1), characterized by: the refrigerator is characterized in that a first temperature sensor (2) used for converting temperature signals in a refrigerator into electric signals to be output is arranged on the surface of the cabinet body (1), the output end of the first temperature sensor (2) is electrically connected with a control module used for receiving, processing and sending signals, the output end of the control module is connected with a gas compression module (6) used for compressing low-pressure gas into high-temperature high-pressure gas and generating power, the output end of the gas compression module (6) is connected with a condensation module (7) used for condensing the high-temperature high-pressure gas into medium-temperature high-pressure liquid and then shunting the medium-temperature high-pressure liquid into low-temperature low-pressure liquid, the output end of the condensation module (7) is connected with an evaporation module (8) used for enabling the low-temperature low-pressure liquid and external air to perform heat exchange refrigeration, and, be provided with in condensation module (7) and be used for monitoring dust sensor (9) of dust and filth on fin (72) of condenser (71), the output of dust sensor (9) with control module's input electric connection, be provided with the cleaning device who is used for cleaning fin (72) on condenser (71) of condensation module (7), control module control cleaning device cleans fin (72) of condenser (71).
2. The intelligent refrigeration equipment for the cold storage according to claim 1, wherein: cleaning device includes worm (10), rack (11), first motor (12) and brush (13) with worm (10) meshing, the output shaft of first motor (12) with the tip fixed connection of worm (10), the brush hair of brush (13) is followed the direction of height of condenser (71) is arranged and is just right respectively fin (72) of condenser (71), rack (11) with the back fixed connection of brush (13) and make the brush hair of brush (13) with fin (72) butt of condenser (71).
3. The intelligent refrigeration equipment for the refrigeration house according to claim 2, wherein: and a vibration motor (14) is fixed on the back of the hairbrush (13).
4. The intelligent refrigeration equipment for the refrigeration house according to claim 2, wherein: just right the fixed position of fin (72) of condenser (71) has length to be greater than slide rail (15) of the length of condenser (71), sliding connection has slider (16) in slide rail (15), slide rail (15) interior level be fixed with side fixed connection's of slider (16) electricity jar (17), first motor (12) fixed mounting be in slider (16).
5. The intelligent refrigeration equipment for the cold storage according to claim 1, wherein: and a monitoring module for monitoring whether the compressor is abnormal or not is arranged in the gas compression module (6).
6. The intelligent refrigeration equipment for the refrigeration house according to claim 5, wherein: the monitoring module comprises a speed sensor, a liquid level sensor, a pressure sensor and a second temperature sensor, the speed sensor monitors the running speed of the compressor, the liquid level sensor monitors the oil level and the liquid level of the compressor, the pressure sensor monitors the low-pressure of the compressor, the second temperature sensor monitors the temperature of the compressor, and the speed sensor, the liquid level sensor, the pressure sensor and the second temperature sensor are electrically connected with the input end of the control module.
7. The intelligent refrigeration equipment for the refrigeration house according to claim 5, wherein: the output end of the control module is electrically connected with an alarm module which plays a role in alarming, and the alarm module is controlled by the monitoring module.
8. The intelligent refrigeration equipment for the refrigeration house according to claim 5, wherein: the compressor of the gas compression module (6) is controlled by a first switching member controlled by the monitoring module.
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| CN201910895751.7A CN110617668A (en) | 2019-09-21 | 2019-09-21 | Intelligent refrigeration equipment for refrigeration house |
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