CN202485280U - Environment induction type frequency conversion, compression refrigeration and electricity-saving system - Google Patents
Environment induction type frequency conversion, compression refrigeration and electricity-saving system Download PDFInfo
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- CN202485280U CN202485280U CN2012200821870U CN201220082187U CN202485280U CN 202485280 U CN202485280 U CN 202485280U CN 2012200821870 U CN2012200821870 U CN 2012200821870U CN 201220082187 U CN201220082187 U CN 201220082187U CN 202485280 U CN202485280 U CN 202485280U
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- compressor
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- temperature sensor
- control system
- frequency conversion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model provides an environment induction type frequency conversion, compression refrigeration and electricity-saving system, comprising a motor, a compressor, a control system and a temperature sensor, wherein the compressor is driven by the motor; the compressor, a throttle valve, an evaporator and a condenser form a refrigerating circuit; the motor is a stepless variable-speed motor; the temperature sensor is arranged in a refrigeration environment and is associated with the control system; the control system comprises a logic operation module and an output control module; the logic operation module, the output control module and the motor are sequentially and electrically connected; the logic operation module is used for performing hard-subtract between a preset environment temperature and a current environment temperature sent by the temperature sensor, calculating rotating speed data by using a positive correlation logical relationship, and outputting the rotating speed data to the output control module; and a rotating speed of the stepless variable-speed motor is adjusted by the output control module. The system is capable of adjusting the rotating speed of the compressor according to actual refrigeration demands, and reducing idle loss of the compressor to the maximum degree so as to obtain higher energy-saving effect.
Description
Technical field
The utility model relates to field of refrigeration, particularly, is a kind of compression refrigerating system, comprises by compressors driven.
Background technology
Along with the rapid economic development of China, energy problem is more and more outstanding, and people also recognize importance of energy conservation gradually.Along with social economy is fast-developing, the corresponding sustainable growth of electricity needs, imbalance between power supply and demand is outstanding day by day, and economize on electricity has become the task of top priority of the whole society.Along with the exploitation and the application of various new technologies, new material, the electric cost of effectively controlling enterprise by high-tech means becomes a reality.
Aspect industrial refrigeration, the energy consumption of artificial cooling increases rapidly.In the artificial cooling process, refrigerant condenser is the main source of modern factories low-temperature receiver.Its proportion at factory's power consumption is also very high, generally can both reach 10-30%, is the problem that a lot of users more and more pay close attention to so how to reduce the power consumption of refrigerant condenser.
Present refrigeration system, its whole refrigeration unit all is made up of compressor, condenser, choke valve and evaporimeter, and the basic principle of its refrigeration system is roughly the same, and mainly power consumption process is the work done of compressor compresses working medium.In the present refrigeration system, compressor basically only is in two states, promptly turns round and stops, and when environment temperature reached preset temperature, compressor stopped, otherwise compressor operation.Yet, constant speed running always during compressor operation, in fact, when environment temperature during near preset temperature, required compression working medium amount is less, need not very high rotating speed, so the rotating speed surplus is wasted basically; On the other hand, after environment temperature reached preset temperature, compressor quit work; And when environment temperature and preset temperature differ big; Compressor starts again, and its starting current is very big, not only causes the big energy consumption of short time; And need very high requirement be proposed to the specification of circuit, to resist powerful dash current.
The screw compressor that generally adopts in the most typical refrigeration system at present; Although in order to control energy consumption, made part and improved, be provided with guiding valve like the compression screw rod of screw compressor; Can slide along the compression screw rod; Through the position of regulating slide valve, the active length of scalable compression screw rod, thereby the energy consumption of regulating compressor; Yet, because this kind screw compressor when work, only has guiding valve to regulate energy consumption; Compressor still is in the constant speed operating condition, and therefore, its energy consumption is still bigger; Its system's actual operating efficiency is general low; Be merely about 50%-70% for overall time, be necessary to make improvements, to obtain higher energy saving effect.
The utility model content
To the problems referred to above; The purpose of the utility model is to provide a kind of environment induction formula frequency conversion compression refrigeration power saving apparatus; This system can farthest reduce the idling loss of compressor, thereby obtain higher power-saving effect according to actual refrigeration demand real-time regulated compressor rotary speed.
The utility model solves the technical scheme that its technical problem adopted: this environment induction formula frequency conversion compression refrigeration power saving apparatus comprises motor, by said compressors driven, control system, said compressor and choke valve, evaporimeter, condenser formation refrigerating circuit; Said motor is the electrodeless variable-speed motor, also comprises the temperature sensor that is arranged in the refrigerating environment, the said control of this temperature sensor association system; Said control system comprises the logical operation module output control module, and said logical operation module, output control module, motor are electrically connected in proper order.
Said logical operation module will be preset environment temperature and make difference operation with the current environmental temperature that is transported by said temperature sensor; And with positive correlation logical relation Calculation Speed data; Export to said output control module, and regulate said electrodeless variable-speed rotating speed of motor by said output control module.
As preferably, said compressor is a screw compressor, is equipped with the energy guiding valve that can move along screw axial on its compression screw rod, and this energy guiding valve is electrically connected said control system.
As preferably, said temperature sensor is arranged at away from said evaporimeter air outlet place, thereby reduces the cold wind influence of air outlet, makes the sensing temperature of temperature sensor more approach the true environment temperature.
As the further improvement of above-mentioned optimal way, said temperature sensor comprises a wireless sending module, and correspondingly, said control system comprises a wireless receiving module, and said temperature sensor and said control system are with dedicated radio link; Thereby be convenient to make said temperature sensor that any desired location of refrigerating environment is monitored.
As preferably, said electrodeless variable-speed motor is also connected one and is used to ballast module that starting current is slowly increased, thereby further reduces dash current.
The beneficial effect of the utility model is: this environment induction formula frequency conversion compression refrigeration power saving apparatus is when the more approaching preset environment temperature of current environmental temperature, and compressor compresses tolerance demand is low more, at this moment; Said control system makes the electrodeless variable-speed motor speed low more; That is compressor rotary speed is low more, can make compressor be in the operating condition that adapts to actual demand always, to reduce the idle running rate of compressor; And; So can significantly reduce the number of times that compressor opens all standing suddenly, can also effectively reduce the loss of dash current, improve power-saving effect to a great extent.
Description of drawings
Fig. 1 is the structural representation of this environment induction formula frequency conversion compression refrigeration power saving apparatus.
Fig. 2 is in this environment induction formula frequency conversion compression refrigeration power saving apparatus, the structural representation of control system.
Fig. 3 is the compressor rotary speed curve map of an embodiment of this environment induction formula frequency conversion compression refrigeration power saving apparatus.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified:
In Fig. 1, embodiment shown in Figure 2, this environment induction formula frequency conversion compression refrigeration power saving apparatus comprises the refrigerating circuit that is made up of compressor 1, condenser 2, choke valve 3, evaporimeter 4; Said compressor is driven by a stepless speed-change motor 5,6 regulation and control of said electrodeless variable-speed motor 5 controlled systems; Also comprise the temperature sensor 7 that is arranged in the refrigerating environment in addition; The related said control of this temperature sensor 7 system 6; Its relation mechanism is: said temperature sensor 7 comprises a wireless sending module; Correspondingly, said control system 6 comprises a wireless receiving module, and said temperature sensor 7 and said control system 6 are with dedicated radio link; Thereby be convenient to make any desired location of 7 pairs of refrigerating environments of said temperature sensor to monitor; Generally; This temperature sensor 7 should to reduce the influence of cold wind to temperature sensor 7, be monitored actual refrigerating environment temperature more accurately away from the air outlet of said evaporimeter 4;
The structure of said control system 6 is as shown in Figure 2, and it comprises logical operation module 601, output control module 602; Said logical operation module 601 receives the current environmental temperature T that said temperature sensor 7 sends; And will preset environment temperature T0 and current environmental temperature T0 makes difference operation; Get T-T0; And, export to said output control module 602, and regulate the rotating speed of said electrodeless variable-speed motor 5 by said output control module 602 with positive correlation logical relation Calculation Speed data.
In order to make electrodeless variable-speed motor 5 be in the comparatively reliable work range of speeds all the time; In the present embodiment, set a minimum speed for this electrodeless variable-speed motor through said control system 6, corresponding to the a-b section rotating speed among Fig. 1; In the case; Said compressor 1 needs to adopt screw compressor, and is equipped with the energy guiding valve that can move along screw axial on the compression screw rod, and this energy guiding valve is electrically connected said control system 6; When the amount of calming the anger demand further reduces; That is shown in abscissa among Fig. 2, when the difference T-T0 of current environmental temperature T and preset environment temperature T0 further reduced, compressor 1 rotating speed (equaling electrodeless variable-speed motor 5 rotating speeds) r kept constant; The interior energy guiding valve of said control system's 6 control screw compressors reduces aperture gradually; To dwindle the screw rod active length, when T-T0=0, compressor 1 stops operating; Generally, the rotating speed r of compressor 1 then is operated in b-c section as shown in Figure 2, and is therefore, above-mentioned with positive correlation logical relation Calculation Speed data; Its positive correlation formula should be roughly r=r1+k (T-T0), and wherein, r1 is the minimum speed of compressor 1; K is a positive correlation coefficient, and when T-T0 was minimum, then compressor 1 was shut down; And generally, because the heat flow property of environment, T-T0 always has certain value; Therefore, compressor 1 seldom can be shut down phenomenon, therefore can significantly reduce the startup dash current.
In order further to reduce dash current, said electrodeless variable-speed motor 5 is also connected one and is used to make the slowly ballast module of growth of starting current.
Above-mentioned environment induction formula frequency conversion compression refrigeration power saving apparatus is when the more approaching preset environment temperature of current environmental temperature, and compressor 1 compression tolerance demand is low more, at this moment; Said control system 6 makes electrodeless variable-speed motor 5 rotating speeds low more, that is compressor 1 rotating speed is low more, can make compressor 1 be in the operating condition that adapts to actual demand always; To reduce the idle running rate of compressor 1; And, so can significantly reduce the number of times that compressor 1 opens all standing suddenly, the general range of decrease is about 50%; Therefore can also effectively reduce the loss of dash current, improve power-saving effect to a great extent.
The above is merely the preferred embodiment of the utility model, and is in order to restriction the utility model, not all within the spirit and principle of the utility model, any modification of being done, is equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (5)
1. environment induction formula frequency conversion compression refrigeration power saving apparatus; Comprise motor, by said compressors driven, control system; Said compressor and choke valve, evaporimeter, condenser form refrigerating circuit; It is characterized in that: said motor is the electrodeless variable-speed motor, also comprises the temperature sensor that is arranged in the refrigerating environment, the said control of this temperature sensor association system; Said control system comprises the logical operation module output control module, and said logical operation module, output control module, motor are electrically connected in proper order.
2. environment induction formula frequency conversion compression refrigeration power saving apparatus according to claim 1; It is characterized in that: said compressor is a screw compressor; Its compression is equipped with the energy guiding valve that can move along screw axial on screw rod, and this energy guiding valve is electrically connected said control system.
3. environment induction formula frequency conversion compression refrigeration power saving apparatus according to claim 1, it is characterized in that: said temperature sensor is arranged at away from said evaporimeter air outlet place.
4. environment induction formula frequency conversion compression refrigeration power saving apparatus according to claim 3; It is characterized in that: said temperature sensor comprises a wireless sending module; Correspondingly; Said control system comprises a wireless receiving module, and said temperature sensor and said control system are with dedicated radio link.
5. according to any described environment induction formula frequency conversion compression refrigeration power saving apparatus among the claim 1-4, it is characterized in that: said electrodeless variable-speed motor is also connected one and is used to make the slowly ballast module of growth of starting current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200821870U CN202485280U (en) | 2012-02-27 | 2012-02-27 | Environment induction type frequency conversion, compression refrigeration and electricity-saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200821870U CN202485280U (en) | 2012-02-27 | 2012-02-27 | Environment induction type frequency conversion, compression refrigeration and electricity-saving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202485280U true CN202485280U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200821870U Expired - Fee Related CN202485280U (en) | 2012-02-27 | 2012-02-27 | Environment induction type frequency conversion, compression refrigeration and electricity-saving system |
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| CN (1) | CN202485280U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266424A (en) * | 2014-09-18 | 2015-01-07 | 广东芬尼克兹节能设备有限公司 | Variable-frequency control system and variable-frequency control method for heat pump |
| CN109489284A (en) * | 2018-11-21 | 2019-03-19 | 齐力制冷系统(深圳)有限公司 | A kind of Vending Machine refrigeration module |
-
2012
- 2012-02-27 CN CN2012200821870U patent/CN202485280U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266424A (en) * | 2014-09-18 | 2015-01-07 | 广东芬尼克兹节能设备有限公司 | Variable-frequency control system and variable-frequency control method for heat pump |
| CN109489284A (en) * | 2018-11-21 | 2019-03-19 | 齐力制冷系统(深圳)有限公司 | A kind of Vending Machine refrigeration module |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20130227 |