CN103994612A - Energy-saving refrigerating system - Google Patents
Energy-saving refrigerating system Download PDFInfo
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- CN103994612A CN103994612A CN201410139866.0A CN201410139866A CN103994612A CN 103994612 A CN103994612 A CN 103994612A CN 201410139866 A CN201410139866 A CN 201410139866A CN 103994612 A CN103994612 A CN 103994612A
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Abstract
An energy-saving refrigerating system comprises a compressor, a condenser, a regenerator, a gas-liquid separator, a first drying filter, a first capillary tube, a condensation evaporator, a second drying filter, a second capillary tube and an evaporator. The compressor is communicated with the condenser, the regenerator and the gas-liquid separator. An outlet in the bottom of the gas-liquid separator is communicated with an inlet of the first drying filter, an outlet of the first drying filter is communicated with an inlet of the condensation evaporator through the first capillary tube, and a high-boiling-point outlet of the condensation evaporator is communicated with an inlet of the compressor. A low-boiling-point outlet of the condensation evaporator is communicated with an inlet of the second drying filter, an outlet of the second drying filter is communicated with an inlet of the evaporator through the second capillary tube, an outlet of the evaporator is communicated with the inlet of the compressor, and an expansion container is communicated with a pipeline at the inlet of the compressor through a fifth capillary tube. Grading and throttling are carried out through mixed refrigerant, so that low temperature, safety and energy conservation are achieved, and the energy-saving refrigerating system can be used for refrigeration of environments with the temperature ranging from -90 DEGC to -40 DEG C.
Description
Technical field
The present invention relates to refrigerating field, be specially a kind of energy-conserving refrigeration system, be applicable to cryogenic temperature scope-40 ℃ ~-90 ℃ temperature ranges.
Background technology
Industrial expansion and particular surroundings demand have driven the development of Refrigeration Technique, and the development of Refrigeration Technique has equally also promoted the raising of production technology and product quality.The low temperature environment of-40 ℃ ~-90 ℃ is in all demands widely of enterprise and Research Center, as cryogenic separation and preservation, low-temperature quick-freezing, gas liquefaction, the detection of electronic product low temperature, life and medical domain preservation etc.Because the temperature of conventional single stage compress refrigeration is generally more than-40 ℃, so the low temperature of-40 ℃ generally needs multi-stage compression or adopts cascade refrigeration mode, cause energy consumption for cooling increase, refrigerating efficiency to reduce, energy-conserving and environment-protective have become one of key technology of cryogenic technique.
Cascade refrigeration can be divided into classical cascade refrigeration and from two kinds of forms of cascade refrigeration.The mixed non-azeotropic refrigerant that adopts boiling point to differ greatly from cascade refrigeration, adopts fractional condensaion throttling technology, and system is as long as used a compressor, and equipment cost reduces.This energy-conserving refrigeration system can be raised the efficiency in theory, but owing to will using the mixed non-azeotropic refrigerant of Multiple components, also has in actual applications some problems, mainly uses in the occasion below-90 ℃ at present.The Cryo Equipment cascade refrigeration technology of-50 ℃ ~-90 ℃ of temperature ranges be take classical cascade refrigeration as main, is the main refrigeration means of equipment research exploitation.
Conventional cascade refrigeration system need to be used two compressors, drives respectively high-temperature refrigeration circulation and cryogenic refrigeration circulation.High and low temperature kind of refrigeration cycle is identical with conventional kind of refrigeration cycle, be vapor compression refrigeration, high and low temperature kind of refrigeration cycle shares a heat exchanger (evaporator-condenser), this heat exchanger effect of high-temperature refrigeration circulation is equivalent to the evaporimeter in refrigeration system, cryogenic refrigeration this heat exchanger that circulates is equivalent to the condenser in refrigeration system, the cold that high-temperature refrigeration circulation produces is used for absorbing the condensation heat of cryogenic refrigeration circulating refrigerant, guarantees suitable condensing pressure, evaporating pressure and obtains required cryogenic temperature.
Runback folds refrigeration technique and adopts a compressor, the mix refrigerant that uses boiling point to differ greatly, and the cold that high boiling cold-producing medium produces is used for the lower boiling refrigerant vapour of condensation, and the cold that the low boiling point refrigerant throttling that condensation is got off produces is for user.
Energy-conservation and environmental protection is major issue concerned in using energy source.Because the refrigerating efficiency of common cascade refrigeration system is lower than conventional single-stage refrigerating system, thereby the refrigerating efficiency in environmental protection refrigerant, process of refrigerastion is one of Important Problems of paying close attention to of overlapping low-temperature refrigeration.The environmental protection refrigerant that the cascade refrigeration that some researchers have proposed to comprise CO2 recycles; By modes such as backheats, improve refrigerating efficiency etc.The present invention, in conjunction with the protection of compressor, backheat control mode and capillary section connection throttling technology, improves kind of refrigeration cycle efficiency, and a kind of-40 ℃ ~-90 ℃ of temperature range energy-saving low-temperature refrigerating methods are provided.
Summary of the invention
The invention provides a kind of energy-conserving refrigeration system, utilize mix refrigerant classification throttling to realize low temperature.This kind of refrigeration cycle has energy-conservation and safe and reliable feature, can be used for the environment refrigeration of-40 ℃ ~-90 ℃.
For achieving the above object, the present invention has adopted following technical scheme.
A kind of energy-conserving refrigeration system comprises compressor, condenser, regenerator, gas-liquid separator, the first device for drying and filtering, the first capillary, condenser/evaporator, the second device for drying and filtering, the second capillary and evaporimeter, the outlet of compressor is connected with the import of condenser, the outlet of condenser is connected with the import of regenerator, the outlet at bottom of regenerator is connected with the import of gas-liquid separator, the top exit of regenerator is connected with the import of compressor, the top outlet of gas-liquid separator is connected with the import of condenser/evaporator, the outlet at bottom of gas-liquid separator is connected with the import of the first device for drying and filtering, the outlet of the first device for drying and filtering is connected with the import of condenser/evaporator by the first capillary, the higher boiling outlet of condenser/evaporator is connected with the import of compressor, the low boiling outlet of condenser/evaporator is connected with the import of the second device for drying and filtering, the outlet of the second device for drying and filtering is connected with the import of evaporimeter by the second capillary, the outlet of evaporimeter is connected with the import of compressor, and expansion vessel is connected with the pipeline of compressor inlet by the 5th capillary.
The mix refrigerant gas of the compressor outlet in the present invention is condensed into gas-liquid mixture in condenser, the gas-liquid mixture regenerator of flowing through, enter again gas-liquid separator, the refrigerant liquid that boiling point is high flows to the first device for drying and filtering after gas-liquid separator, throttling cooling in the first capillary, refrigerant air-liquid mixture after throttling cooling evaporation endothermic in condenser/evaporator is given low-boiling cold-producing medium cooling, makes it condensation, after the cold-producing medium that boiling point is high evaporates, flows to compressor.Low-boiling cold-producing medium in condenser/evaporator under condensation is throttling cooling in the second capillary after the second device for drying and filtering, and low-boiling refrigerant air-liquid mixture evaporation endothermic in evaporimeter after throttling cooling, lowers the temperature to storage box.
Preferred expansion vessel is connected with compressor inlet by the 5th capillary, guarantee refrigeration system at the pressure of stopped status in normal pressure, protection equipment.
Preferred the present invention also comprises the 6th automatic control valve member and the 4th capillary, the outlet of the first device for drying and filtering is connected with the import of compressor with the 4th capillary by the 6th automatic control valve member, compressor temperature the 6th automatic control valve member conducting during higher than the first design temperature, compressor temperature during not higher than the first design temperature the 6th automatic control valve member close.Whether the 6th automatic control valve member conducting is determined by the temperature of compressor inlet cold-producing medium; Compressor Inlet Temperature is high; cause compressor temperature high; at this moment the 6th automatic control valve member conducting; part is directly connected with compressor inlet after lowering the temperature by the 4th capillary-compensated from the refrigerant liquid of the first device for drying and filtering; reduce compressor inlet refrigerant temperature, protection compressor.
Preferred the present invention also comprises storage box, the 3rd automatic control valve member, the second automatic control valve member and three capillary, and the second capillary is connected with the import of evaporimeter by the 3rd automatic control valve member; The second capillary is by after the second automatic control valve member, then is connected with the import of evaporimeter by three capillary, and when storage box temperature is during higher than the second design temperature, the second automatic control valve member is closed, and the 3rd automatic control valve member is opened; When storage box temperature is not during higher than the second design temperature, the 3rd automatic control valve member is closed, and the second automatic control valve member is opened.Whether the conducting of the second automatic control valve member of the present invention and the 3rd automatic control valve member is determined by the temperature of storage box, when storage box temperature during higher than the second design temperature the second automatic control valve member close, the 3rd automatic control valve member is opened, from the second refrigerant liquid capillaceous evaporation endothermic in evaporimeter, reduce the temperature of storage box; When storage box temperature is not during higher than the second design temperature, the 3rd automatic control valve member is closed, and the second automatic control valve member is opened, and from the second cold-producing medium capillaceous evaporation endothermic in evaporimeter of flowing through after three capillary, reduces the temperature of storage box.And second automatic control valve member and the 3rd automatic control valve member chain, when operation always one in conducting state, another is just in closed condition.
Preferred the present invention also comprises four selfs control valve member, the 5th automatic control valve member, the import of condenser/evaporator is connected with the outlet of evaporimeter by four selfs control valve member, the import of compressor is connected with the outlet of evaporimeter by the 5th automatic control valve member, and when evaporator outlet temperature is higher than the 3rd design temperature, four selfs control valve member is closed, the 5th automatic control valve member is opened, when evaporator outlet temperature is not higher than the 3rd design temperature, the 5th automatic control valve member is closed, and four selfs control valve member is opened.When evaporator outlet temperature is higher, in order to guarantee the condensation effect of low boiling point refrigerant in condenser/evaporator, four selfs control valve member is closed, and the 5th automatic control valve member is opened; And when evaporator outlet temperature lower, four selfs control valve member is opened, the 5th automatic control valve member is closed.And four selfs control valve member and the 5th automatic control valve member chain, when operation always one in conducting state, another is just in closed condition.
Preferred the present invention also comprises the first automatic control valve member, the 7th automatic control valve member, the higher boiling outlet of condenser/evaporator is connected with the import of regenerator by the first automatic control valve member, the higher boiling outlet of condenser/evaporator is connected with the import of compressor by the 7th automatic control valve member, condenser/evaporator higher boiling outlet temperature is higher than the 4th design temperature, the first automatic control valve member is closed, and the 7th automatic control valve member is opened; When condenser/evaporator higher boiling outlet temperature is not higher than the 4th design temperature, the first automatic control valve member is opened, and the 7th automatic control valve member is closed, and protection compressor makes full use of cold simultaneously, improves refrigerating efficiency.And first automatic control valve member and the 7th automatic control valve member chain, when operation always one in conducting state, another is just in closed condition.
Preferred when storage box temperature reaches the 5th design temperature, compressor quits work; Storage box temperature raises while surpassing the 5th design temperature, and compressor starts refrigeration again, cooling preservation case.
Mix refrigerant of the present invention is for containing the cold-producing medium of ethene (R1150) and propane (R290) or HFC-134a (R134a) or propane (R290) and HFC-134a (R134a).Can be that propane (R290), HFC-134a (R134a) or its mixture and ethene (R1150) mix as required.
accompanying drawing explanation
Fig. 1 is the structural representation of the preferred embodiment of the present invention.
the specific embodiment
below in conjunction with accompanying drawing, the specific embodiment of the invention is described further.
As figure the present invention relates to a kind of energy-conserving refrigeration system, comprise compressor 1, condenser 2, regenerator 3, gas-liquid separator 4, the first device for drying and filtering 5, the first capillary 6, condenser/evaporator 7, the second device for drying and filtering 9, the second capillary 10 and evaporimeter 14, the outlet of compressor 1 is connected with the import of condenser 2, the outlet of condenser 2 is connected with the import of regenerator 3, the outlet at bottom of regenerator 3 is connected with the import of gas-liquid separator 4, the top exit of regenerator 3 is connected with the import of compressor 1, the top outlet of gas-liquid separator 4 is connected with the import of condenser/evaporator 7, the outlet at bottom of gas-liquid separator 4 is connected with the import of the first device for drying and filtering 5, the outlet of the first device for drying and filtering 5 is connected with the import of condenser/evaporator 7 by the first capillary 6, the higher boiling outlet of condenser/evaporator 7 is connected with the import of compressor 1, the low boiling outlet of condenser/evaporator 7 is connected with the import of the second device for drying and filtering 9, the outlet of the second device for drying and filtering 9 is connected with the import of evaporimeter 14 by the second capillary 10, the outlet of evaporimeter 14 is connected with the import of compressor 1, and expansion vessel 20 is connected with the pipeline of compressor 1 import by the 5th capillary.
The mix refrigerant gas of compressor 1 outlet in the present invention is condensed into gas-liquid mixture in condenser 2, the gas-liquid mixture regenerator 3 of flowing through, enter again gas-liquid separator 4, the refrigerant liquid that boiling point is high flows to the first device for drying and filtering 5 after gas-liquid separator 4, throttling cooling in the first capillary 6, refrigerant air-liquid mixture after throttling cooling evaporation endothermic in condenser/evaporator 7 is given low-boiling cold-producing medium cooling, makes it condensation, after the cold-producing medium that boiling point is high evaporates, flows to compressor.Low-boiling cold-producing medium in condenser/evaporator 7 under condensation is throttling cooling in the second capillary 10 after the second device for drying and filtering 9, and low-boiling refrigerant air-liquid mixture evaporation endothermic in evaporimeter 14 after throttling cooling, lowers the temperature to storage box.
Expansion vessel 20 is connected with compressor 1 import by the 5th capillary, guarantee refrigeration system at the pressure of stopped status in normal pressure, protection equipment.
The present invention also comprises the 6th automatic control valve member 17 and the 4th capillary 18, the outlet of the first device for drying and filtering 5 is connected with the import of compressor 1 with the 4th capillary 18 by the 6th automatic control valve member 17, the 6th automatic control valve member 17 conductings during higher than the first design temperature of compressor 1 temperature, compressor 1 temperature during not higher than the first design temperature the 6th automatic control valve member 17 close.Whether the 6th automatic control valve member 17 conductings are determined by the temperature of compressor 1 import cold-producing medium; compressor 1 inlet temperature is high; cause compressor 1 temperature high; at this moment the 6th automatic control valve member 17 conductings; part is directly connected with compressor 1 import after lowering the temperature by the 4th capillary 18 throttlings from the refrigerant liquid of the first device for drying and filtering 5; reduce compressor 1 inlet refrigerant temperature, protection compressor 1.
The present invention also comprises that storage box, the 3rd automatic control valve member 13, the second automatic control valve members 11 and three capillary 12, the second capillaries 10 are connected with the import of evaporimeter 14 by the 3rd automatic control valve member 13; The second capillary 10 is by after the second automatic control valve member 11, then is connected with the import of evaporimeter 14 by three capillary 12, and when storage box temperature is during higher than the second design temperature, the second automatic control valve member 11 is closed, and the 3rd automatic control valve member 13 is opened; When storage box temperature is not during higher than the second design temperature, the 3rd automatic control valve member 13 is closed, and the second automatic control valve member 11 is opened.Whether the conducting of the second automatic control valve member 11 of the present invention and the 3rd automatic control valve member 13 is determined by the temperature of storage box, when storage box temperature during higher than the second design temperature the second automatic control valve member 11 close, the 3rd automatic control valve member 13 is opened, from refrigerant liquid evaporation endothermic in evaporimeter 14 of the second capillary 10, reduce the temperature of storage box; When storage box temperature is not during higher than the second design temperature, the 3rd automatic control valve member 13 is closed, and the second automatic control valve member 11 is opened, and from the cold-producing medium of the second capillary 10 evaporation endothermic in evaporimeter 14 of flowing through after three capillary 12, reduces the temperature of storage box.And second automatic control valve member 11 and the 3rd automatic control valve member 13 chain, when operation always one in conducting state, another is just in closed condition.
The present invention also comprises four selfs control valve member 15, the 5th automatic control valve member 16, the import of condenser/evaporator 7 is connected with the outlet of evaporimeter 14 by four selfs control valve member 15, the import of compressor 1 is connected with the outlet of evaporimeter 14 by the 5th automatic control valve member 16, when evaporimeter 14 outlet temperatures are higher than the 3rd design temperature, four selfs control valve member 15 is closed, the 5th automatic control valve member 16 is opened, when evaporator outlet temperature is not higher than the 3rd design temperature, the 5th automatic control valve member 16 is closed, and four selfs control valve member 15 is opened.When evaporimeter 14 outlet temperatures are higher, in order to guarantee the condensation effect of low boiling point refrigerant in condenser/evaporator 7, four selfs control valve member 15 is closed, and the 5th automatic control valve member 16 is opened; And it is lower to work as evaporimeter 14 outlet temperatures, four selfs control valve member 15 is opened, and the 5th automatic control valve member 16 is closed.And four selfs control valve member 15 and the 5th automatic control valve member 16 chain, when operation always one in conducting state, another is just in closed condition.
The present invention also comprises the first automatic control valve member 8, the 7th automatic control valve member 19, the higher boiling outlet of condenser/evaporator 7 is connected with the import of regenerator 3 by the first automatic control valve member 8, the higher boiling outlet of condenser/evaporator 7 is connected with the import of compressor 1 by the 7th automatic control valve member 19, the higher boiling outlet temperature of condenser/evaporator 7 is higher than the 4th design temperature, the first automatic control valve member 8 is closed, and the 7th automatic control valve member 19 is opened; When condenser/evaporator 7 higher boiling outlet temperatures are not higher than the 4th design temperature, the first automatic control valve member 8 is opened, and the 7th automatic control valve member 19 is closed, and protection compressor 1 makes full use of cold simultaneously, improves refrigerating efficiency.And first automatic control valve member 8 and the 7th automatic control valve member 19 chain, when operation always one in conducting state, another is just in closed condition.
When storage box temperature reaches the 5th design temperature, compressor 1 quits work; Storage box temperature raises while surpassing the 5th design temperature, and compressor 1 starts refrigeration, cooling preservation case again.
Mix refrigerant of the present invention is for containing the cold-producing medium of ethene (R1150) and propane (R290) or HFC-134a (R134a) or propane (R290) and HFC-134a (R134a).Can be that propane (R290), HFC-134a (R134a) or its mixture and ethene (R1150) mix as required.
embodiment 1
The operating temperature of storage box is-80 ℃.After refrigeration system vacuumizes, the cold-producing medium punching note that appropriate HFC-134a and ethene are mixed is in refrigeration system.Refrigeration system switches on power, after time delay, compressor 1 starts, the exhaust of compressor 1 is after condenser 2, HFC-134a in mix refrigerant is condensed into liquid, mix refrigerant is after gas-liquid separator 4, the HFC-134a liquid being condensed flows out from the bottom of gas-liquid separator 4, through the first device for drying and filtering 5, throttling cooling in the first capillary 6, with come to enter condenser/evaporator 7 after the refrigerant mixed of flash-pot 14, the cooling ethylene vapor from gas-liquid separator 4, make ethene be condensed into liquid, when storage box temperature during higher than-55 ℃ automatic control valve member 9 close, the 3rd automatic control valve member 13 is opened, refrigerant liquid evaporation endothermic in evaporimeter 14 from the second capillary 10, reduce the temperature of storage box, when storage box temperature is not during higher than-55 ℃, the 3rd automatic control valve member 13 is closed, and automatic control valve member 9 is opened, and from the cold-producing medium of the second capillary 10 evaporation endothermic in evaporimeter 14 of flowing through after three capillary 12, reduces the temperature of storage box.
When evaporator outlet refrigerant temperature is higher than-10 ℃, four selfs control valve member 15 is closed, the 5th automatic control valve member 16 is opened, come the cold-producing medium of flash-pot 14 directly to return compressor, when evaporimeter 14 outlet refrigerant temperatures are not higher than-10 ℃, the 5th automatic control valve member 16 is closed, and four selfs control valve member 15 is opened, and after the cold-producing medium of evaporimeter 14 outlets and the refrigerant mixed from the first capillary 6, enters condenser/evaporator 7.
When the outlet temperature of condenser/evaporator 7 outlet HFC-134as or HFC-134a and mixture of ethylene is higher than-20 ℃, the first automatic control valve member 8 is closed, the 7th automatic control valve member 19 is opened, cold-producing medium from condenser/evaporator 7 directly returns compressor 1, when condenser/evaporator 7 outlet refrigerant temperatures are not higher than-20 ℃, the 7th automatic control valve member 19 is closed, and the first automatic control valve member 8 is opened, the cold-producing medium of the condenser/evaporator 7 outlet regenerator 3 of flowing through, further condensation is from the mix refrigerant of condenser 2.
When storage box temperature reaches setting value, compressor 1 quits work; Storage box temperature raises and surpasses setting value, and compressor 1 starts refrigeration, cooling preservation case again.
embodiment 2
The operating temperature of storage box is-50 ℃.After refrigeration system vacuumizes, the cold-producing medium punching note that appropriate propane and ethene are mixed is in refrigeration system.Refrigeration system switches on power, after time delay, compressor 1 starts, the exhaust of compressor 1 is after condenser 2, propane in mix refrigerant is condensed into liquid, mix refrigerant is after gas-liquid separator 4, the propane liquid being condensed flows out from the bottom of gas-liquid separator 4, through the first device for drying and filtering 5, throttling cooling in the first capillary 6, with come to enter condenser/evaporator 7 after the refrigerant mixed of flash-pot 14, the cooling ethylene vapor from gas-liquid separator 4, make ethene be condensed into liquid, automatic control valve member 9 is closed, the 3rd automatic control valve member 13 is opened, refrigerant liquid evaporation endothermic in evaporimeter 14 from the second capillary 10, reduce the temperature of storage box.
When evaporator outlet refrigerant temperature is higher than-10 ℃, four selfs control valve member 15 is closed, the 5th automatic control valve member 16 is opened, come the cold-producing medium of flash-pot 14 directly to return compressor 1, when evaporimeter 14 outlet refrigerant temperatures are not higher than-10 ℃, the 5th automatic control valve member 16 is closed, and four selfs control valve member 15 is opened, and after the cold-producing medium of evaporimeter 14 outlets and the refrigerant mixed from the first capillary 6, enters condenser/evaporator 7.
When the outlet temperature of condenser/evaporator 7 outlet HFC-134as or HFC-134a and mixture of ethylene is higher than-20 ℃, the first automatic control valve member 8 is closed, the 7th automatic control valve member 19 is opened, cold-producing medium from condenser/evaporator 7 directly returns compressor 1, when condenser/evaporator 7 outlet refrigerant temperatures are not higher than-20 ℃, the 7th automatic control valve member 19 is closed, and the first automatic control valve member 8 is opened, the cold-producing medium of the condenser/evaporator 7 outlet regenerator 3 of flowing through, further condensation is from the mix refrigerant of condenser 2.
When storage box temperature reaches setting value, compressor 1 quits work; Storage box temperature raises and surpasses setting value, and compressor 1 starts refrigeration, cooling preservation case again.
Claims (10)
1. an energy-conserving refrigeration system, comprise compressor (1), condenser (2), regenerator (3), gas-liquid separator (4), the first device for drying and filtering (5), the first capillary (6), condenser/evaporator (7), the second device for drying and filtering (9), the second capillary (10) and evaporimeter (14), it is characterized in that: the outlet of compressor (1) is connected with the import of condenser (2), the outlet of condenser (2) is connected with the import of regenerator (3), the outlet at bottom of regenerator (3) is connected with the import of gas-liquid separator (4), the top exit of regenerator (3) is connected with the import of compressor (1), the top exit of gas-liquid separator (4) is connected with the import of condenser/evaporator (7), the outlet at bottom of gas-liquid separator (4) is connected with the import of the first device for drying and filtering (5), the outlet of the first device for drying and filtering (5) is connected with the import of condenser/evaporator (7) by the first capillary (6), the higher boiling outlet of condenser/evaporator (7) is connected with the import of compressor (1), the low boiling outlet of condenser/evaporator (7) is connected with the import of the second device for drying and filtering (9), the outlet of the second device for drying and filtering (9) is connected with the import of evaporimeter (14) by the second capillary (10), and the outlet of evaporimeter (14) is connected with the import of compressor (1).
2. a kind of energy-conserving refrigeration system according to claim 1, it is characterized in that energy-conserving refrigeration system also comprises the 6th automatic control valve member (17) and the 4th capillary (18), the outlet of the first device for drying and filtering (5) is connected with the import of compressor (1) with the 4th capillary (18) by the 6th automatic control valve member (17), the 6th automatic control valve member (17) conducting during higher than the first design temperature of compressor (1) temperature, compressor (1) temperature during not higher than the first design temperature the 6th automatic control valve member (17) close.
3. a kind of energy-conserving refrigeration system according to claim 1 and 2, it is characterized in that energy-conserving refrigeration system also comprises storage box, the 3rd automatic control valve member (13), the second automatic control valve member (11) and three capillary (12), the second capillary (10) is connected with the import of evaporimeter (14) by the 3rd automatic control valve member (13); The second capillary (10) is by after the second automatic control valve member (11), by three capillary (12) with the import of evaporimeter (14), be connected again, when storage box temperature is during higher than the second design temperature, the second automatic control valve member (11) is closed, and the 3rd automatic control valve member (13) is opened; When storage box temperature is not during higher than the second design temperature, the 3rd automatic control valve member (13) is closed, and the second automatic control valve member (11) is opened.
4. a kind of energy-conserving refrigeration system according to claim 1 and 2, it is characterized in that energy-conserving refrigeration system also comprises four selfs control valve member (15), the 5th automatic control valve member (16), the import of condenser/evaporator (7) is connected with the outlet of evaporimeter (14) by four selfs control valve member (15), the import of compressor (1) is connected with the outlet of evaporimeter (14) by the 5th automatic control valve member (16), when evaporimeter (14) outlet temperature is higher than the 3rd design temperature, four selfs control valve member (15) is closed, the 5th automatic control valve member (16) is opened, when evaporimeter (14) outlet temperature is not higher than the 3rd design temperature, the 5th automatic control valve member (16) is closed, four selfs control valve member (15) is opened.
5. a kind of energy-conserving refrigeration system according to claim 3, it is characterized in that energy-conserving refrigeration system also comprises four selfs control valve member (15), the 5th automatic control valve member (16), the import of condenser/evaporator (7) is connected with the outlet of evaporimeter (14) by four selfs control valve member (15), the import of compressor (1) is connected with the outlet of evaporimeter (14) by the 5th automatic control valve member (16), when evaporimeter (14) outlet temperature is higher than the 3rd design temperature, four selfs control valve member (15) is closed, the 5th automatic control valve member (16) is opened, when evaporimeter (14) outlet temperature is not higher than the 3rd design temperature, the 5th automatic control valve member (16) is closed, four selfs control valve member (15) is opened.
6. a kind of energy-conserving refrigeration system according to claim 1 and 2, it is characterized in that energy-conserving refrigeration system also comprises the first automatic control valve member (8), the 6th automatic control valve member (19), the higher boiling outlet of condenser/evaporator (7) is connected with the import of regenerator (3) by the first automatic control valve member (8), the higher boiling outlet of condenser/evaporator (7) is connected with the import of compressor (1) by the 6th automatic control valve member (19), condenser/evaporator (7) higher boiling outlet temperature is higher than the 4th design temperature, the first automatic control valve member (8) is closed, the 6th automatic control valve member (19) is opened, when condenser/evaporator (7) higher boiling outlet temperature is not higher than the 4th design temperature, the first automatic control valve member (8) is opened, and the 6th automatic control valve member (19) is closed.
7. a kind of energy-conserving refrigeration system according to claim 3, it is characterized in that energy-conserving refrigeration system also comprises the first automatic control valve member (8), the 6th automatic control valve member (19), the higher boiling outlet of condenser/evaporator (7) is connected with the import of regenerator (3) by the first automatic control valve member (8), the higher boiling outlet of condenser/evaporator (7) is connected with the import of compressor (1) by the 6th automatic control valve member (19), condenser/evaporator (7) higher boiling outlet temperature is higher than the 4th design temperature, the first automatic control valve member (8) is closed, the 6th automatic control valve member (19) is opened, when condenser/evaporator (7) higher boiling outlet temperature is not higher than the 4th design temperature, the first automatic control valve member (8) is opened, and the 6th automatic control valve member (19) is closed.
8. a kind of energy-conserving refrigeration system according to claim 4, it is characterized in that energy-conserving refrigeration system also comprises the first automatic control valve member (8), the 6th automatic control valve member (19), the higher boiling outlet of condenser/evaporator (7) is connected with the import of regenerator (3) by the first automatic control valve member (8), the higher boiling outlet of condenser/evaporator (7) is connected with the import of compressor (1) by the 6th automatic control valve member (19), condenser/evaporator (7) higher boiling outlet temperature is higher than the 4th design temperature, the first automatic control valve member (8) is closed, the 6th automatic control valve member (19) is opened, when condenser/evaporator (7) higher boiling outlet temperature is not higher than the 4th design temperature, the first automatic control valve member (8) is opened, and the 6th automatic control valve member (19) is closed.
9. a kind of energy-conserving refrigeration system according to claim 5, it is characterized in that energy-conserving refrigeration system also comprises the first automatic control valve member (8), the 6th automatic control valve member (19), the higher boiling outlet of condenser/evaporator (7) is connected with the import of regenerator (3) by the first automatic control valve member (8), the higher boiling outlet of condenser/evaporator (7) is connected with the import of compressor (1) by the 6th automatic control valve member (19), condenser/evaporator (7) higher boiling outlet temperature is higher than the 4th design temperature, the first automatic control valve member (8) is closed, the 6th automatic control valve member (19) is opened, when condenser/evaporator (7) higher boiling outlet temperature is not higher than the 4th design temperature, the first automatic control valve member (8) is opened, and the 6th automatic control valve member (19) is closed.
10. a kind of energy-conserving refrigeration system according to claim 1, is characterized in that the mix refrigerant of its use is for containing the cold-producing medium of ethene (R1150) and propane (R290) or HFC-134a (R134a) or propane (R290) and HFC-134a (R134a).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410139866.0A CN103994612B (en) | 2014-04-09 | 2014-04-09 | A kind of energy-conserving refrigeration system |
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| CN110154867A (en) * | 2019-06-27 | 2019-08-23 | 青岛凯菲尔智能冷藏车有限公司 | A kind of vehicle-mounted deep cooling refrigerating carriage of new energy tricycle |
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| CN103994612B (en) | 2016-06-08 |
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