CN2233889Y - Frequency-changing speed-regulating refrigerator for ship freeze preservation container - Google Patents
Frequency-changing speed-regulating refrigerator for ship freeze preservation container Download PDFInfo
- Publication number
- CN2233889Y CN2233889Y CN 95220331 CN95220331U CN2233889Y CN 2233889 Y CN2233889 Y CN 2233889Y CN 95220331 CN95220331 CN 95220331 CN 95220331 U CN95220331 U CN 95220331U CN 2233889 Y CN2233889 Y CN 2233889Y
- Authority
- CN
- China
- Prior art keywords
- frequency
- refrigeration system
- power supply
- frequency converter
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model relates to a frequency-changing speed-regulating refrigerator for ship freeze preservation containers, comprising a refrigeration system and a power supply. The utility model is characterized in that a frequency converter is arranged between a motor of the refrigeration system and the power supply. A condenser of the refrigeration system is provided with a condensation temperature sensor, and a refrigerating temperature sensor is arranged in a container. The frequency converter is composed of a rectifier, an inverter and a computer operation and digital controller. The utility model saves lots of electric energy and improves the preserving quality of the food.
Description
The utility model relates to refrigerated container refrigeration system peculiar to vessel.
Existing refrigerated container peculiar to vessel is the article that adopt in the freezing or refrigerated container of compression-type refrigeration device, but it is constant that automatic system of marine diesel-generator is supplied with the electric power of container system device for cooling, and the compression-type refrigerating system of freight container is at standard duty, promptly 35 ℃ of following design-calculateds of high ambient temperature.In fact, the situation that boats and ships navigate by water under this environment is seldom, and in most of the cases, the actual environment temperature is more much lower than specified ambient temperature.Along with the reduction of ambient temperature and condensing temperature, the needed refrigerating capacity of freight container reduces, and the refrigerating capacity of system reduces, the power reduction of refrigerant desired compression.But these help energy-conservation factor and do not obtain utilizing for existing refrigerated container.Diesel-engine generator is constant by the electric power of electrical motor input refrigerating compressor, and the rotating speed of compressor is constant, and this just makes the coefficient of refrigerating performance of system descend significantly.At this moment the unnecessary energy of importing compressor mainly consumes on the throttle loss of expansion valve.
It is lower or when constantly changing that the purpose of this utility model provides a kind of ambient temperature, can make the refrigerating capacity and the needed refrigerating capacity coupling of refrigerated container of system.
The purpose of this utility model is to realize like this.
A kind of frequency control fridge equipment of refrigerated container peculiar to vessel, it comprises refrigeration system and power supply, it is characterized in that between the electrical motor and power supply of said refrigeration system, connect a frequency converter, condenser place in refrigeration system adorns a condensing temperature sensor, and a refrigerant temperature sensor is set in freight container; Said frequency converter is the rectifier that is become direct current signal by the AC signal with power supply, with the direct current signal inversion is the inverter of the AC signal of different frequency, the micro computer that the actual temperature that design temperature and two sensors can be recorded is carried out computing, and the output signal that receives in the micro computer comes the digitial controller of control inverter output frequency to form.
Good effect of the present utility model
1. because the utility model is the variation according to ambient temperature, utilize frequency converter to regulate the rotating speed of refrigerating compressor, make the electric energy and the needed refrigerating capacity coupling of freight container of input compressor, thereby saved a large amount of electric energy, also reduced the load of diesel-engine generator; Simultaneously also help increasing the transportation quantity of refrigerated container, improve the operating benefit of boats and ships.
2. the utility model can also improve the freezing quality of refrigerated container, and when compressor start, required refrigerating capacity is big, and compressor moves with higher rotation speed, and the temperature of frozen food is descended rapidly, has played the effect of quick-frozen; Between pool period, chilling temperature can be controlled in 1 ℃ of scope, and the chilling temperature of common refrigerated container fluctuates in 3 ℃ of scopes, thereby the utility model has improved the fresh-keeping quality of food.
Fig. 1 is an embodiment of the invention sketch.
Be described in further details below in conjunction with accompanying drawing.
It among the figure refrigeration system schematic diagram of former refrigerated container, 1 frequency converter of being formed by distillation a, inversion b, computer computing c and control part d wherein, the 2nd, evaporator 3 is that the temperature inside the box changes sensor, the 4th, expansion valve, the 5th, reservoir, the 6th, compressor, the 7th, condensing temperature sensor, the 8th, electrical motor; The 9th, condenser; The 10th, electrical generator (source of AC)
Said frequency converter can be controlled the rotating speed R (R=120f (1-S)/P) of the electrical motor that drives refrigerating compressor, f in the formula is the ac frequency of frequency converter output, S is the revolutional slip of electrical motor, P is the number of pole-pairs of electrical motor, and the alternating current of the fixed frequency that frequency converter can be exported automatic system of marine diesel-generator changes the alternating current of different frequency into.Under certain operating mode, refrigerating capacity is directly proportional with the flow of refrigerant.The utility model utilizes frequency converter can infinitely regulate electrical motor and rotating speed compressor, changes the flow of refrigerant continuously, thereby changes the refrigerating capacity of container system cooling system continuously, makes it the refrigerating capacity coupling required with freight container.Because refrigerated container peculiar to vessel is to work being lower than under 35 ℃ the environment basically, frequency converter can reduce the rotating speed of compressor, saves energy according to the refrigerating capacity of freight container actual needs; When the quantity of the freight container of boats and ships shipments more for a long time, its power savings is more obvious, can reduce the load of boat diesel engine widely.Compressor and motor speed reduce its loss due to friction and have also reduced.Though frequency converter itself also can consume the sub-fraction energy, overall energy-saving effect is fairly obvious.
Rectifier a in the frequency converter 1 is a direct current (DC) with the AC rectification of electrical generator 10, inverter b is that the alternating current of different frequency is exported to electrical motor 8 again with dc inverter, when refrigeration system is moved, the needed refrigerant temperature value of freight container is flowed to the micro computer arithmetic and logic unit c of frequency converter, the temperature inside the box sensor 3 of freight container and condensing temperature sensor 7 also are input to the temperature value of actual measurement in the computer arithmetic and logic unit simultaneously, relatively calculate through arithmetic and logic unit, again information is delivered to digitial controller d, come control inverter by controller, thus the frequency of the alternating current of control inverter output.This just can control motor 8 and the rotating speed of compressor 6, and the refrigerating capacity of control system makes it and the needed refrigerating capacity coupling of freight container.When ambient temperature reduced, the heat that environment is passed to freight container reduced, and the needed refrigerating capacity of freight container reduces.Simultaneously, the condensing temperature consistent with ambient temperature reduces, and this just makes the refrigerating capacity of unit mass refrigerant increase, and the compression work of unit mass refrigerant vapour reduces.Therefore suitably reduce refrigerant flow, promptly reduce the rotating speed of compressor, just can satisfy the needs of container system cold, thus saves energy.
Claims (1)
1. the frequency control fridge equipment of a refrigerated container peculiar to vessel, it comprises refrigeration system and power supply, it is characterized in that between the electrical motor and power supply of said refrigeration system, connect a frequency converter [1], condenser place in refrigeration system adorns a condensing temperature sensor [7], and a refrigerant temperature sensor [3] is set in freight container; Said frequency converter is by the rectifier [a] that power supply [10] AC signal is become direct current signal, with the direct current signal inversion is the inverter [b] of the AC signal of different frequency, the micro computer [c] that the actual temperature that design temperature and two sensors can be recorded is carried out computing, and the output signal that receives in the micro computer comes the digitial controller [d] of control inverter output frequency to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95220331 CN2233889Y (en) | 1995-08-31 | 1995-08-31 | Frequency-changing speed-regulating refrigerator for ship freeze preservation container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95220331 CN2233889Y (en) | 1995-08-31 | 1995-08-31 | Frequency-changing speed-regulating refrigerator for ship freeze preservation container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2233889Y true CN2233889Y (en) | 1996-08-28 |
Family
ID=33868270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95220331 Expired - Fee Related CN2233889Y (en) | 1995-08-31 | 1995-08-31 | Frequency-changing speed-regulating refrigerator for ship freeze preservation container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2233889Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716326A (en) * | 2016-04-07 | 2016-06-29 | 广东合即得能源科技有限公司 | Heat pump air conditioning based on power generation system for producing hydrogen by methanol water reforming and heating and refrigerating method |
| CN105757978A (en) * | 2016-04-23 | 2016-07-13 | 广东合即得能源科技有限公司 | Shipborne heat pump water heater system and heating method |
| CN105752310A (en) * | 2016-04-23 | 2016-07-13 | 广东合即得能源科技有限公司 | Shipborne heat pump air-conditioning system and heating and refrigeration method |
| CN108288938A (en) * | 2018-01-03 | 2018-07-17 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| WO2019134373A1 (en) * | 2018-01-03 | 2019-07-11 | 广东美芝制冷设备有限公司 | Compressor and refrigeration device |
| CN110171554A (en) * | 2019-06-03 | 2019-08-27 | 扬帆集团股份有限公司 | A kind of water-cooling system and its working method of ship freeze preservation container |
-
1995
- 1995-08-31 CN CN 95220331 patent/CN2233889Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716326A (en) * | 2016-04-07 | 2016-06-29 | 广东合即得能源科技有限公司 | Heat pump air conditioning based on power generation system for producing hydrogen by methanol water reforming and heating and refrigerating method |
| CN105716326B (en) * | 2016-04-07 | 2019-05-10 | 广东合即得能源科技有限公司 | Heat pump air conditioner and heating refrigerating method based on methanol-water reformation hydrogen production electricity generation system |
| CN105757978A (en) * | 2016-04-23 | 2016-07-13 | 广东合即得能源科技有限公司 | Shipborne heat pump water heater system and heating method |
| CN105752310A (en) * | 2016-04-23 | 2016-07-13 | 广东合即得能源科技有限公司 | Shipborne heat pump air-conditioning system and heating and refrigeration method |
| CN105752310B (en) * | 2016-04-23 | 2018-02-16 | 广东合即得能源科技有限公司 | A kind of boat-carrying heat pump type air conditioning system and heating refrigerating method |
| CN105757978B (en) * | 2016-04-23 | 2019-08-09 | 广东合即得能源科技有限公司 | A kind of boat-carrying heat pump water heater system and heating method |
| CN108288938A (en) * | 2018-01-03 | 2018-07-17 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| CN108288938B (en) * | 2018-01-03 | 2019-06-04 | 广东美芝制冷设备有限公司 | Compressor and refrigeration equipment |
| WO2019134373A1 (en) * | 2018-01-03 | 2019-07-11 | 广东美芝制冷设备有限公司 | Compressor and refrigeration device |
| US11486614B2 (en) | 2018-01-03 | 2022-11-01 | Guangdong Meizhi Compressor Co., Ltd. | Compressor and refrigeration device |
| CN110171554A (en) * | 2019-06-03 | 2019-08-27 | 扬帆集团股份有限公司 | A kind of water-cooling system and its working method of ship freeze preservation container |
| CN110171554B (en) * | 2019-06-03 | 2021-07-23 | 扬帆集团股份有限公司 | Water cooling system of refrigerated container for ship and working method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4280335A (en) | Icebank refrigerating and cooling systems for supermarkets | |
| EP2042358A2 (en) | Cold plate refrigeration system optimized for energy efficiency | |
| US20070209378A1 (en) | Vehicle integrated power and control strategy for cold plate refrigeration system | |
| CN101934755A (en) | Energy-saving environment-friendly freezing and refrigeration lorry with functions of electric-drive refrigeration and cold accumulation | |
| CN1231028A (en) | Compound refrigeration system for water chilling and thermal storage | |
| CN2233889Y (en) | Frequency-changing speed-regulating refrigerator for ship freeze preservation container | |
| CN100400987C (en) | Electric refrigerator | |
| CN1995868A (en) | Wind-driven cooling and heat pump making method and device therefor | |
| US6240737B1 (en) | Solar-powered refrigerator | |
| CN200979313Y (en) | Wind power drive refrigeration and heat pump installation | |
| CN114097158A (en) | Refrigerator power control | |
| CN114144956A (en) | Power control for container ships | |
| CN1100513A (en) | Liquid nitrogen refrigerating system | |
| CN212841973U (en) | Fluorine pump energy-saving precision air conditioning system with cold storage function | |
| CN212481800U (en) | Portable solar refrigerating box and mobile device suitable for mobile refrigeration | |
| CN209495506U (en) | A kind of dedicated refrigeration control equipment of power saving refrigerator | |
| JPS6349667Y2 (en) | ||
| CN2722141Y (en) | Refrigerator with cold holding device | |
| CN219468616U (en) | Cold-storage refrigeration transportation equipment without cold source and external charging in three temperature areas of photovoltaic | |
| CN213778334U (en) | Air flow type intelligent refrigeration house defrosting device | |
| CN211120210U (en) | Storage equipment based on frequency conversion energy-saving technology | |
| CN215638188U (en) | Multi-mode phase-change cold-charging energy-saving temperature control device for thermal insulation container | |
| CN2075328U (en) | Novel refrigerator | |
| CN216308318U (en) | Refrigerator with double-circulation cold accumulation function | |
| CN2281311Y (en) | Refrigerator for fishing boat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |