CN101907371A - Air-condition freezing and refrigeration system device - Google Patents
Air-condition freezing and refrigeration system device Download PDFInfo
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- CN101907371A CN101907371A CN 201010217044 CN201010217044A CN101907371A CN 101907371 A CN101907371 A CN 101907371A CN 201010217044 CN201010217044 CN 201010217044 CN 201010217044 A CN201010217044 A CN 201010217044A CN 101907371 A CN101907371 A CN 101907371A
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Abstract
The invention relates to an air-condition freezing and refrigeration system device. The device comprises an air-condition system, a refrigeration system and a freezing system, wherein the three systems are controlled to run by a controller and are connected in series through a pipeline; a bypass path is formed between the suction end and the discharge end of each system compressor; and the three systems share an oil separator, a reservoir and an oil storage tank. The air-condition freezing and refrigeration system device has the advantages that the three systems are connected in series to form three-level compression, so that the compression ratio of the refrigeration compressor and the freezing compressor is reduced, the power consumption is reduced, and the energy efficiency is improved; when any one compressor in the three systems fails, the failed compressor can be bypassed through the bypass path, and the compressors of the other two systems can continue to supply cold; and when a heat pump in the air-condition system runs, the refrigeration compressor does not need to run, so the energy consumption of the system is reduced, and the heating capability of an air-condition indoor unit is increased.
Description
Technical field
The present invention relates to refrigeration technology field, relate in particular to the field of air-conditioning, refrigeration and refrigeration system associated working, be applicable to the refrigeration system that realizes different evaporating temperatures, as convenience store, food processing storing field etc.
Background technology
The refrigeration system of using in convenience store, food processing storing field generally includes air-conditioning, cooling storage facilities and freezer, all is to realize refrigeration by refrigeration machine.
The refrigeration system of using in the convenience store of prior art and the food processing storing field, be to dispose aircondition inequality and fridge-freezer respectively at each different indoor, cooling storage facilities and freezer, guarantee the demand (evaporating temperature: aircondition＞cold storage plant＞refrigerating plant), need three to overlap independently that refrigeration system could realize usually at least of different evaporating temperatures by separate cold storage plant, refrigerating plant and aircondition.The deficiencies in the prior art are:
1, the air-condition freezing system more complicated that becomes, it is bigger to take up room, and manufacturing cost is higher.And in different evaporating temperature (aircondition, cold storage plant, refrigerating plant) work down, the Energy Efficiency Ratio of the compressor that is used for freezing (EER) differs very big.When condensing pressure one timing, evaporating temperature is low more, the compression ratio of compressor is just big more, refrigerating capacity reduces, delivery temperature Energy Efficiency Ratio (EER) high more, compressor is poor more, so the coefficient of refrigerating performance of aircondition (COP) is the highest, next is a cold storage plant, (COP) is minimum for the coefficient of refrigerating performance of refrigerating plant, so refrigerating plant generally can adopt double-stage compressive refrigerating system, has increased the complexity and the manufacturing cost of system so again.And air-conditioning system is carried out the heat pump running in winter, and when outdoor environment temperature is low, heating capacity and efficiency all will be fallen very lowly or device can't normally turn round at all, and can only adopt auxiliary electric heater unit, make that the energy consumption of aircondition is very high.
2, divide three independently system be configured unit, when there is problem in one or two system, when especially freezing or refrigerating system goes wrong, cold-producing medium can not normal circulation in this system, two other system can not recompense to the system that goes wrong, thereby the cooling device that goes wrong can not be freezed, make the article that are cooled can not get freezing or refrigeration.
How realizing different evaporating temperatures simultaneously in a system, can reduce cost like this, can improve system effectiveness and reliability thereof again, is a key problem in technology problem of this area.
Summary of the invention
The purpose of this invention is to provide a kind of refrigeration system that integrates freezing, refrigeration and air conditioning function, compressor of air conditioner, refrigeration compressor, refrigerant condenser are connected in series, formation multi-stage compression circulation, to overcome the deficiency that prior art exists, can not only cut down the consumption of energy, improve the efficiency of whole system, and can be when refrigerator or reezer system break down, the cold-producing medium circulation can not stop, and has the function of mutual compensation.
To achieve these goals, technical scheme of the present invention is: a kind of air-condition freezing and refrigeration system device, this system and device comprises air-conditioning system, refrigerating system and refrigeration system, move by the controller control system, the compression unit that it is characterized in that described air-conditioning system, the compression unit of refrigerating system and the compression unit of refrigeration system are connected in series by pipeline, be that refrigeration system compression unit outlet side is connected with the gas-liquid separator inlet of refrigerating system compression unit, the outlet side of refrigerating system compression unit is connected with the gas-liquid separator inlet of air-conditioning system compression unit, the air-conditioning system compression unit, the gas-liquid separator of refrigerating system compression unit and refrigeration system compression unit respectively with the compression unit of air-conditioning system, the suction side pipeline of the compression unit of refrigerating system and the compressor of the compression unit of refrigeration system is connected, the air-conditioning system compression unit, be provided with bypass path between the suction side of the compressor of refrigerating system compression unit and refrigeration system compression unit and the outlet side, bypass path is made up of the check-valves that is connected in parallel between the suction side of compressor and outlet side, the check-valves inlet is connected with the suction side of compressor, and the check-valves outlet is connected with the outlet side of compressor; Described air-conditioning system compression unit comprises two compressors that are connected in parallel; The shared oil eliminator of described air-conditioning system, refrigerating system and refrigeration system, a reservoir and an oil storage tank, the inlet of described shared oil eliminator is connected with the pipeline of the outlet side of air-conditioning system compression unit, and outlet is connected with the inlet I of four-way change-over valve; The inlet of described shared reservoir is connected with the outlet of the heat exchanger of the outdoor unit of air-conditioning system, the outlet I of reservoir is connected with the inlet of the heat exchanger of the indoor unit of air-conditioning system, being divided into two pipelines behind the outlet II drying filter of reservoir is connected with the inlet of refrigerating system evaporimeter and the inlet of refrigeration system evaporimeter with the expansion valve V through the expansion valve III respectively, the outlet of the heat exchanger of the indoor unit of air-conditioning system is connected with the inlet II of four-way change-over valve, the outlet I of four-way change-over valve is connected with the inlet of the heat exchanger of the outdoor unit of air-conditioning system, the outlet II of four-way change-over valve is connected with air-conditioning system gas-liquid separator inlet, the outlet of refrigerating system evaporimeter is connected with refrigerating system gas-liquid separator inlet, and the outlet refrigeration system gas-liquid separator inlet of refrigeration system evaporimeter connects; Described shared oil storage tank inlet is connected with the oily outlet of oil eliminator, the outlet of oil storage tank is divided into four the tunnel, with four branch roads that have a magnetic valve respectively with the connector of the crankcase of the compressor I of air-conditioning system compression unit, the connector of the crankcase of the compressor II of air-conditioning system compression unit, the connector of the crankcase of the compressor of refrigerating system compression unit is connected with the connector of the crankcase of the compressor of refrigeration system compression unit, the balance pipe of oil conservator is divided into three the tunnel, with three branch road and air-conditioning systems that have check-valves, refrigerating system is connected described air-conditioning system with the inlet of the gas-liquid separator of the low-pressure side of refrigeration system three system compresses unit, every compressor of refrigerating system and refrigeration system three system compresses unit is provided with an oil level controllers; Described controller comprises master controller, outdoor air-conditioner controller, room conditioning controller, outdoor cooling controller, indoor refrigeration controller and indoor freezing controller, and master controller carries out data communication by circuit and outdoor air-conditioner controller, room conditioning controller, outdoor cooling controller, indoor refrigeration controller and indoor freezing controller.
A kind of air-condition freezing and refrigeration system device of the present invention is characterized in that two compressors of described air-conditioning system compression unit, and wherein a compressor is that another is the constant speed drive compressor by the compressor of Frequency Converter Control running.
A kind of air-condition freezing and refrigeration system device of the present invention, be connected with expansion valve and the check-valves that is connected in parallel on the outlet I that it is characterized in that described shared reservoir and the pipeline that the inlet of the heat exchanger of the indoor unit of air-conditioning system is connected, expansion valve is connected with the outlet I of reservoir with the check-valves inlet, and the outlet of expansion valve and check-valves is connected with the inlet of the heat exchanger of the indoor unit of air-conditioning system.
A kind of air-condition freezing and refrigeration system device of the present invention, be connected with the plate type heat exchanger that has the expansion valve branch road in the pipeline that it is characterized in that behind the outlet II drying filter of described shared reservoir being connected with the inlet of the inlet of refrigerating system evaporimeter and refrigeration system evaporimeter, the inlet of expansion valve is connected with the device for drying and filtering outlet, the outlet of expansion valve is connected with the inlet of plate type heat exchanger one side heat exchanger tube, the heat exchanger tube outlet of plate type heat exchanger the same side is connected with air-conditioning system gas-liquid separator inlet, plate type heat exchanger opposite side heat exchanger tube inlet is connected with the device for drying and filtering outlet, the outlet of plate type heat exchanger opposite side heat exchanger tube is divided into two-way, is connected with the inlet of refrigerating system evaporimeter and the inlet of refrigeration system evaporimeter respectively.
A kind of air-condition freezing and refrigeration system device of the present invention is characterized in that two compressors of described air-conditioning system compression unit and the compressor of refrigerating system compression unit are the compressors with energy adjustment function.
The invention has the beneficial effects as follows:
1. owing to compressor of air conditioner, refrigeration compressor, refrigerant condenser are connected in series, can form three grades of compressions when turning round simultaneously, wherein refrigerant condenser is the one-level compression, and the refrigeration compressor is the secondary compression, and compressor of air conditioner is three grades of compressions; The compression ratio of refrigeration compressor and refrigerant condenser is reduced, and consumed power reduces, thereby improves the efficiency of whole system;
2. when any one in compressor of air conditioner, refrigeration compressor, refrigerant condenser breaks down, by with compressor parallel, the bypass path that two ends connect gas-liquid separator outlet and oil eliminator inlet respectively masks the fault compressor, all the other two groups of compressors also can form the twin-stage compression, improve the efficiency of whole system;
3. when the refrigeration compressor breaks down, by bypass path, the refrigeration compressor is by-pass out, compressor of air conditioner running at this moment can continue refrigeration evaporator is carried out cooling;
4. when refrigerant condenser breaks down,, refrigerant condenser is by-pass out, at this moment refrigerates compressor operation, can continue refrigerating evaporator is carried out cooling by bypass path;
5. in winter, air-conditioning system is carried out heat pump running, and the low evaporating pressure that causes air-conditioner outdoor unit of environment temperature is when low (when being lower than the refrigerating system evaporating pressure), and the refrigeration compressor can turn round, so both reduce system energy consumption, increased the heating capacity of indoor apparatus of air conditioner simultaneously again.
6. whole system is provided with an oil eliminator and oil conservator, and every compressor is provided with an oil level controllers, and being used for provides a kind of reliable oil return system and control scheme thereof for the compressor design under a plurality of different evaporating pressures.
Description of drawings
The present invention has accompanying drawing 3 width of cloth, wherein
Fig. 1 is the system construction drawing during machine-processed blowdown firing pattern for air-condition freezing and refrigeration installs an air conditioner,
Fig. 2 is the system construction drawing during machine-processed heat run pattern for air-condition freezing and refrigeration installs an air conditioner,
System construction drawing when Fig. 3 installs an air conditioner the machine holding state for air-condition freezing and refrigeration.
Description of reference numerals:
The 1_ refrigeration system; 2_ indoor (in the shop); The 3_ refrigerating box; The 4_ household freezer; 5A_ check-valves I; 5B_ check-valves II; 6_ air-conditioning system portion; The refrigerant loop is used in the 7_ air conditioning; 8_ cooling system portion; The refrigerant loop is used in the 9_ cooling; The 10_ oil eliminator; The 11_ indoor unit; The 12_ outdoor unit; 13A_ compressor of air conditioner I; 13B_ compressor of air conditioner II; The 14_ four-way change-over valve; 14A_ four-way change-over valve import I; 14B_ four-way change-over valve import II; 14C_ four-way change-over valve outlet I; 14D_ four-way change-over valve outlet II; 15_ air-conditioning indoor side heat exchanger blower fan; 16_ air conditioner room outdoor heat exchanger; 17_ expansion valve I; 18_ expansion valve II; 19_ check-valves III; 20_ refrigeration evaporator fan; 21_ expansion valve III; 22_ check-valves IV; The gas-liquid separator of 23_ air-conditioning system; 24_ air conditioner room outdoor heat exchanger blower fan; The freezing evaporator fan of using of 25_; 26_ air conditioner room outdoor controller; 27_ air-conditioning indoor side heat exchanger; Side controller in the 28_ air conditioning chamber; The 29_ heat-exchangers of the plate type; 30_ check-valves V; The gas-liquid separator of 31_ refrigerating system; 32_ outside cooling controller; 33_ expansion valve IV; The 34_ liquid-sighting glass; 35_ magnetic valve I; The 36_ reservoir; 37_ refrigerates compressor; 38_ capillary I; 39_ capillary II; The 40_ device for drying and filtering; 41_ magnetic valve II; 42_ check-valves VI; 43_ refrigerating system evaporimeter; 44_ refrigerating system compressor oil level controller; 45_ refrigeration system compressor oil level controller; 46_ magnetic valve III; 47_ magnetic valve IV; 48_ check-valves VII; 49_ refrigeration system evaporimeter; 50_ indoor refrigeration controller; 51_ expansion valve V; 52_ magnetic valve V; 53_ magnetic valve VI; The 54_ refrigerant condenser; The freezing controller in 55_ indoor; The 56_ master controller; The 57_ oil storage tank; The 58_ evaporating pressure regulating valve; 59_ check-valves VIII; 60_ check-valves IX; 61_ check-valves X; 62_ refrigeration system gas-liquid separator; The oil level controllers of 63_ air-conditioning compressor I; The oil level controllers of 64_ air-conditioning compressor II.
The specific embodiment
Below in conjunction with the embodiment of accompanying drawing, the present invention will be further described.
The air-conditioning refrigerating system and device of embodiment is cooling in the storehouse of the air conditioning, the cooling storage in the shop 3 and the household freezer 4 that are used in indoor (in the shop) 2 of convenience store.Refrigerating box 3 and household freezer 4 can be the open Showcases of front or top opening, it also can be showcase by the sealing opening of transparent doors switching, be cooled to refrigerated storage temperature (0 ℃ ~+10 ℃) in the storehouse of refrigerating box 3, be used for chilled beverage or sandwich and other foods, be cooled to cryogenic temperature (30 ℃ ~-10 ℃) in the storehouse of household freezer 4, be used for frozen food or ices etc.
This air-conditioning refrigerating system and device comprises air-conditioning system portion 6 and cooling system portion 8.Air-conditioning system portion 6 comprise be arranged on a plurality of indoor units 11 of indoor 2, be arranged on outside the shop outdoor unit 12 and between the air conditioning that constitutes of connecting line with refrigerant loop 7.
This air conditioning comprises (air-conditioning system) with refrigerant loop 7: be arranged on outdoor heat exchanger 16, compressor of air conditioner I 13A (carrying out the FREQUENCY CONTROL running by frequency converter), compressor of air conditioner II 13B (constant speed drive) in the outdoor unit 12; Be arranged on indoor side heat exchanger 27, oil eliminator 10, four-way change-over valve 14, reservoir 36, check-valves I 5A, check-valves II 5B, check-valves VIII 59, check-valves IX 60, check-valves X 61, expansion valve I 17, expansion valve II 18 and the air-conditioning system gas-liquid separator 23 of indoor unit 11.
Above-mentioned air conditioning is connected in parallel with the compressor of air conditioner I 13A and the compressor of air conditioner II 13B of refrigerant loop 7, the outlet of compressor of air conditioner I 13A and compressor of air conditioner II 13B converges through check-valves I 5A, check-valves II 5B, be connected with the inlet I 14A of four-way change-over valve 14, the outlet II 14D of four-way change-over valve is connected with the inlet of outdoor heat exchanger 16.Outdoor heat exchanger 16 comprises that the smaller entrance side 16A of flow resistance that is made of a plurality of pipe arrangements in parallel is pooled to the outlet side 16B of minority pipe arrangement arranged side by side or single pipe arrangement with them.The outlet 16B of outdoor heat exchanger 16 is via expansion valve I 17, check-valves IX 60, reservoir 36, expansion valve II 18, is connected with the inlet of each indoor side heat exchanger 27 of indoor unit 11.
The inlet II 14B that the outlet of each indoor heat converter 27 converges the interior four-way change-over valve 14 of back and outdoor unit 12 is connected.The outlet I 14C of four-way change-over valve 14 is connected with air-conditioning system gas-liquid separator 23 by check-valves VIII 59.Air-conditioning system gas-liquid separator 23 is connected with the suction side of compressor of air conditioner 13A, 13B.The refrigerant that air conditioner compressed unit is discharged returns air conditioner compressed unit through outdoor heat exchanger 16 and air-conditioning indoor side heat exchanger 27.
Indoor air-conditioner controller 26 is made of general microcomputer, according to the off-premises station device of the outdoor unit 12 of outdoor environment temperature or refrigerant pressure control air-conditioning system portion 6.Indoor air-conditioner controller 28 is made of general microcomputer, indicates the device of controlling air-conditioning system indoor unit 11 according to the user who transmits from remote control and import via acceptance division.Outside pressure fan 24 is transported to outdoor heat exchanger 16 with extraneous air, and indoor pressure fan 15 is transported to air-conditioning indoor side heat exchanger 27 with room air.
The cooling system portion 8 of this air-conditioning refrigerating system and device comprise refrigerating box 3 and household freezer 4 and with outdoor unit 12 between the cooling usefulness refrigerant loop 9 that is connected, by refrigeration evaporator 43, refrigeration system evaporimeter, air-conditioning system outdoor heat exchanger 16, refrigerate compressor 37 and refrigerant condenser 54 is formed cool cycles.
The outlet of the refrigeration compressor 37 of cooling system portion 8 is via air-conditioning system gas-liquid separator 23 and air-conditioning compressor group 13A, the 13B suction side connects, from compressor bank 13A, the 13B outlet side is through check-valves I 5A, check-valves II 5B is connected with the inlet I 14A of four-way change-over valve 14 with oil eliminator 10, the outlet II 14D of four-way change-over valve 14 is connected with the inlet of outdoor heat exchanger 16, the outlet side of outdoor heat exchanger 16 is connected with the inlet 36B of reservoir 36 with check-valves IX 60 through expansion valve I 17, the outlet II 36C of reservoir 36 connects the inlet of device for drying and filtering 40, the outlet of device for drying and filtering 40 is divided into two branch roads, and the first branch road pipeline changes through an expansion valve IV 33 and a side of heat-exchangers of the plate type 29
Heat pipe inlet 29C connects, and the heat exchanger tube outlet 29D of heat-exchangers of the plate type 29 and inlet 29C homonymy is connected on the outlet I 14C and the pipeline between the check-valves VIII 59 of four-way change-over valve 14.The second branch road pipeline is connected with the inlet 29A of the opposite side of heat exchanger 29, the outlet 29B of heat-exchangers of the plate type 29 opposite sides is divided into two-way: the one tunnel is connected through the inlet of expansion valve III 21 with refrigeration evaporator 43, refrigeration is connected with the inlet of refrigerated gas liquid/gas separator 31 through evaporating pressure mediation valve 58, check-valves VII 48 with the outlet of evaporimeter 43, and the outlet of refrigerated gas liquid/gas separator 31 is connected with the suction side of refrigeration compressor 37; The second the tunnel is connected through the inlet of expansion valve V 51 with refrigerating evaporator 49, the outlet of refrigerating evaporator 49 is connected through the inlet of check-valves V 30 with freezing gas-liquid separator 62, the outlet of gas-liquid separator III 62 is connected with the suction side of refrigerant condenser 54, the power output of refrigerant condenser 54 is littler than refrigeration compressor 37, and it is discharged side and is connected by the suction side of refrigerated gas liquid/gas separator 31 with refrigeration compressor 37.Be that refrigerant condenser 54, refrigeration compressor 37 and air conditioner compressed unit (13A, 13B) are connected in the refrigerant loop successively.After converging, the outlet of each refrigeration evaporator 43 is connected on the pipeline between refrigerant condenser 54 and the refrigerated gas liquid/gas separator 31.The suction side of refrigerant condenser 54 is connected through the outlet of check-valves III 19 with refrigerant condenser 54.The suction side of refrigeration compressor 37 is connected through the outlet of check-valves VI 42 with refrigeration compressor 37.The suction side of air conditioner compressed unit (13A, 13B) is connected with the outlet of compressor bank through check-valves IV 22.
This air-conditioning refrigerating system and device is provided with master controller 56.Master controller 56 is made of mini-computer, by carrying out data communication with outdoor air-conditioner controller 26, room conditioning controller 28, outdoor cooling controller 32, indoor refrigeration controller 50 and indoor freezing controller 55 this air-conditioning refrigerating system and device integral body is controlled.
The running of this air-conditioning refrigerating system and device is as follows:
Outdoor air-conditioner controller 26 is communicated with the inlet I 14A of four-way change-over valve 14 (with the connector of oil eliminator 10) according to receiving data with outlet II 14D (with the connector of outdoor heat exchanger 16), the II that will enter the mouth 14B (with the connector of air-conditioning indoor side heat exchanger 27) is communicated with outlet I 14C (with the inlet of check-valves VIII 59).17 one-tenth full-gears of expansion valve I make compressor of air conditioner 13A, 13B operation.26 pairs of compressor of air conditioner I of outdoor controller 13A carries out the conversion and control and the ability control of operating frequency.
During compressor of air conditioner 13A, 13B operation, discharge the high temperature and high pressure gas refrigerant that side is discharged from compressor of air conditioner 13A, 13B, from the inlet 16A of oil eliminator 10 via four-way change-over valve 14 inlet chamber outer heat-exchangers 16, outdoor heat converter 16 usefulness pressure fans 24 ventilate, and refrigerant is in this heat release and condensation liquefaction.At this moment promptly, outdoor heat converter 16 has the function of condenser, this liquid refrigerants enters reservoir 36 by expansion valve I 17 and check-valves IX 60, part refrigerant flows out from reservoir outlet I 36A, after the 18 throttling step-downs of expansion valve II, flow into each indoor heat converter 27 evaporation, carry out indoor refrigeration.Indoor heat converter 27 usefulness pressure fans 15 ventilate.
After converging, gets back to the cryogenic gas refrigerant that comes out from air-conditioning indoor heat converter 27 suction side of air conditioner compressed unit successively through four-way change-over valve 14, check-valves VIII 59, gas-liquid separator I 23, according to this circulation repeatedly.
Another part refrigerant that reservoir is 36 li flows out from outlet II 36C, after device for drying and filtering 40 outflows, divide two-way: the first via is through expansion valve IV 33, enter evaporation the heat-exchangers of the plate type 29 from a side entrance 29C of heat-exchangers of the plate type 29, carried out cold to the refrigerant liquid in the opposite side heat exchanger tube in the heat-exchangers of the plate type 29, the low temperature cold media gas that the refrigerant that evaporates in the side heat exchanger tube in heat-exchangers of the plate type 29 forms flows out from outlet 29D, get back to air-conditioning gas-liquid separator 23, come back to the suction side of compressor bank, finish a circulation.The second the road enters from the opposite side of heat-exchangers of the plate type 29 inlet 29A, is crossed cold after, 29B flows out from outlet, the one tunnel enters refrigeration evaporator 43 after the 21 throttling step-downs of expansion valve III evaporates.The cryogenic gas refrigerant that comes out from refrigeration evaporator 43 enters the suction side that refrigerates compressor 37 through evaporating pressure mediation valve 58, check-valves VII 48, refrigerated gas liquid/gas separator 31 successively, through being drained into the inlet of air-conditioning gas-liquid separator 23 after 37 compressions of refrigeration compressor, after converging with the cryogenic gas of coming in from air-conditioning indoor heat converter 27, supply with the suction side of compressor of air conditioner 13A, 13B, so repeatedly circulation; Another road enters refrigerating evaporator 49 evaporations after low pressure is reduced in 51 throttlings of expansion valve V.The cryogenic gas refrigerant that flows out from refrigerating evaporator 49 passes through check-valves V 30 successively, freezing gas-liquid separator 62 is supplied with the suction side of refrigerant condenser 54, through being drained into the entrance side of refrigerated gas liquid/gas separator 31 after refrigerant condenser 54 compressions, after flowing back to the cryogenic gas that comes from refrigeration evaporator 43 and converging, supply with the suction side of refrigeration compressor 37 through refrigerated gas liquid/gas separator 31, again through being drained into the entrance side of air-conditioning gas-liquid separator 23 after 37 compressions of refrigeration compressor, with flow back to from air-conditioning indoor heat converter 27 after cryogenic gas converges, supply to compressor of air conditioner (13A) through air-conditioning gas-liquid separator 23, circulate so repeatedly in suction side (13B).
System oil return control is as follows: compressor 54,37,13A, the oil that 13B discharges is separated when passing through oil eliminator 10, entering into oil storage tank 57 through the connecting line between oil eliminator 10 and the oil storage tank 57 stores, when compressor 54,37,13A, after which table oil position among the 13B drops to certain altitude, the oil level controllers that is contained in accordingly on this compressor sends the magnetic valve V 52 that signal is opened correspondence, magnetic valve VI 53, magnetic valve III 46, magnetic valve IV 47, refrigeration oil outlet 57B from oil storage tank 57 under gravity or action of pressure flows out, flow into corresponding compressor through connecting line, when this compressor oil level was elevated to certain position, oil level controllers will send signal and turn off its corresponding magnetic valve.In addition, the oil that enters in the oil storage tank in the oil eliminator is high pressure, needs a balance pipe.Balance pipe is connected respectively to the gas-liquid separator of three groups of compressors by three branch roads that have a magnetic valve.When certain group compressor fault, carry out effective oil return control by the break-make of magnetic valve.
Failure operation
During compressor fault, corresponding compressor oil return and hydrojet cooling all stop by closing of magnetic valve and expansion valve.
(1) air conditioner refrigerating state
Operation under the air conditioner compressed unit failure condition:
System is according to air conditioner compressed unit fault alarm, feedback information is given master controller 56, and master controller 56 is transferred to information each system controller again, and system is with magnetic valve III (46), magnetic valve IV 47, expansion valve II 18, expansion valve IV 33 are closed, and open magnetic valve I 35.At this moment, refrigeration compressor 37 is discharged the high temperature and high pressure gas refrigerant that side is discharged, and process air-conditioning gas-liquid separator 23, air conditioner compressed unit 13 forms bypass path and oil eliminator 10 by check-valves IV 22 and pipeline successively.Condensation liquefaction in air conditioner outdoor heat exchanger 16 enters into reservoir 36.Refrigerant liquid is through device for drying and filtering 40 in the reservoir 36, do not carry out coldly, directly enters into refrigeration with evaporimeter 43 and freezing with evaporimeter 49 evaporations, gets back to refrigeration compressor 37 and freezing suction side with compressor 54 respectively according to normal loop.Circulate so repeatedly.In this case, because the scarce capacity of refrigeration compressor 37 and refrigerant condenser 54 is to carry out indoor air conditioning, so air-conditioning indoor heat converter 27 is stopped using.The refrigeration adjusting of the evaporating pressure of evaporimeter 43 by evaporating pressure regulating valve 58 guarantees that it is stable.
Operation under the refrigeration compressor fault situation:
System is according to refrigeration compressor 37 fault alarms, and feedback information is given master controller 56, and master controller 56 is transferred to information each system controller again.System is with magnetic valve V 52.At this moment, refrigerant condenser 54 is discharged the gas coolant that side is discharged, process refrigerated gas liquid/gas separator 31, refrigeration compressor 37 forms bypass path and gas-liquid separator 23 by check-valves VI 42 and pipeline successively, after the cold media gas of air-conditioning indoor heat converter 27 discharges mixes, enter into the suction side of air conditioner compressed unit 13.At this moment, owing to lacked the two-stage compression process of refrigeration compressor, cold media gas pressure by check-valves VI 42 is lower than the cold media gas pressure that air-conditioning indoor heat converter 27 is discharged, and can cause the pressure at expulsion of refrigerant condenser 54 to raise like this, and is unfavorable to refrigerant condenser 54; Simultaneously, the evaporating pressure of refrigeration evaporator 43 also can raise.For avoiding this situation, refrigeration controller 50 and freezing controller 55 can be given master controller 56 with the feedback information that receives, master controller 56 communicates information to outdoor air-conditioner controller 26, improve the operating frequency of compressor I 13A, reduce pressure of inspiration(Pi), drop to the evaporating pressure of refrigeration with evaporimeter 43, at this moment the pressure at expulsion of refrigerant condenser 54 also recovers normal.Because the evaporating pressure of air-conditioning indoor heat converter 27 reduces, its ability can descend to some extent.
Operation under the refrigerant condenser failure condition:
System is according to refrigerant condenser 54 fault alarms, and feedback information is given master controller 56, and master controller 56 is transferred to information a system controller again, and system will close magnetic valve VI 53.At this moment, the low-temp low-pressure cold media gas of discharging from refrigerating evaporator 49 is through the bypass path of being made up of check-valves III 19 and pipeline of freezing gas-liquid separator 62 and refrigerant condenser 54, with enter into refrigerated gas liquid/gas separator 31 after gas coolant that refrigeration evaporator 43 is discharged mixes, enter the suction side that refrigerates compressor 37 again and circulate.At this moment, owing to lacked the one-level compression process of refrigerant condenser 54, the gas coolant pressure by check-valves III 19 is lower than the gas coolant pressure that refrigeration is come out with evaporimeter 43.Can cause freezing evaporating pressure with evaporimeter 49 to raise like this, evaporating temperature raises.For avoiding this situation, freezing controller 55 is given master controller 56 with feedback information, and master controller 56 is transferred to freezing and refrigeration controller 32 with information, improves the operating frequency of refrigeration compressor 37, reduces pressure of inspiration(Pi), reaches freezing evaporating pressure with evaporimeter 49.The refrigeration adjusting of the evaporating pressure of evaporimeter 43 by evaporating pressure regulating valve 58 guarantees that it is stable.
Operation under air conditioner compressed unit and the refrigeration compressor simultaneous faults situation:
System is according to air conditioner compressed unit 13 and refrigeration compressor 37 fault alarms, and feedback information is given master controller 56, and master controller is transferred to information each system controller again.System with magnetic valve III 46, magnetic valve IV 47, magnetic valve V 52, close expansion valve II 18, expansion valve IV 33 is closed; Open magnetic valve I 35 and magnetic valve II 41.At this moment, refrigerant condenser 54 is discharged the gas coolant that side is discharged, successively the bypass path and the oil eliminator 10 of the bypass path of process refrigerated gas liquid/gas separator 31, refrigeration compressor 37, air-conditioning gas-liquid separator I 23, air conditioner compressed unit.In air conditioner outdoor heat exchanger 16, behind the condensation liquefaction, enter into reservoir 36.Because two groups of compressor faults in the system, refrigerant condenser 54 scarce capacities of operation are to provide whole colds, so stop indoor air conditioning.The refrigerant liquid that comes out from reservoir 36 is without cold excessively, through evaporating in freezing after 51 throttlings of expansion valve V with evaporimeter 4, when temperature drops to setting value in the storehouse of household freezer 4, close expansion valve V 51, open expansion valve III 21, evaporation in evaporimeter 43 is used in refrigeration, gas coolant process evaporating pressure regulating valve 58 and magnetic valve II 41 that refrigeration is discharged with evaporimeter 43, enter into freezing gas-liquid separator 62, return the suction side of refrigerant condenser 54.Temperature recovery is high during to certain value in the storehouse of household freezer 4, closes expansion valve III 21, opens expansion valve V 51 and evaporates in evaporimeter 4 freezing.Circulating so repeatedly.
Operation under air conditioner compressed unit and the refrigerant condenser simultaneous faults situation:
System is according to air conditioner compressed unit 13 and refrigerant condenser 54 fault alarms, and feedback information is to master controller 56, and master controller is transferred to information each system controller again.System with magnetic valve III 46, magnetic valve IV 47, magnetic valve VI 53, close expansion valve II 18, expansion valve IV 33 is closed; Open magnetic valve I 35.At this moment, refrigeration compressor 37 is discharged the gas coolant that side is discharged, and passes through the bypass path and the oil eliminator 10 of air-conditioning gas-liquid separator I (23), air conditioner compressed unit 13 successively, behind the condensation liquefaction, enters in the reservoir 36 in air conditioner outdoor heat exchanger 16.Refrigerant liquid is through device for drying and filtering 40 in the reservoir 36, do not carry out coldly, directly enters into refrigeration with evaporimeter 43 and freezing with evaporimeter 49 evaporations.Freezing gas coolant of discharging with evaporimeter 49, through the bypass path of check-valves 30, freezing gas-liquid separator 62 and refrigerant condenser 54, the gas coolant of discharging with refrigeration evaporator 43 mixes, and gets back to the suction side of refrigeration compressor 37.After compression, pass through the bypass path and the oil eliminator 10 of gas-liquid separator I 23, air conditioner compressed unit 13 successively, in air conditioner outdoor heat exchanger 16, behind the condensation liquefaction, enter into reservoir 36.Circulate so repeatedly.Like this, refrigerating evaporator 49) and refrigeration evaporator 43 just reach same evaporating pressure, i.e. the evaporating pressure of refrigeration evaporator 43.Because freezing evaporating pressure with evaporimeter 49 raises, can feed back to master controller 56, master controller 56 is transferred to each system controller with information, will improve the operating frequency of refrigeration compressor 37, makes its pressure of inspiration(Pi) reach freezing with the required evaporating pressure of evaporimeter 49 rapidly.Owing to there is evaporating pressure regulating valve 58, the evaporating pressure of refrigeration evaporator 43 is guaranteed.
Operation under refrigeration compressor and the refrigerant condenser simultaneous faults situation:
System is according to refrigeration compressor 37 and refrigerant condenser 54 fault alarms, and feedback information is given master controller 56, and master controller 56 is transferred to each system controller with information.System will close magnetic valve V 52, magnetic valve VI 53.At this moment, air conditioner compressed unit is discharged the high temperature and high pressure gas that side is discharged, and through oil eliminator 10, condensation liquefaction in air conditioner outdoor heat exchanger 16 enters into reservoir 36.The a part of refrigerant liquid that comes out from reservoir 36 evaporates air-conditioning indoor heat converter 27, and the gas coolant of discharge through four-way change-over valve 14 and check-valves VIII 59, enters into air-conditioning gas-liquid separator 23; Part refrigerant liquid is through after cold, evaporation in refrigeration evaporator 43, the gas coolant of discharging is got back to refrigerated gas liquid/gas separator 31 through evaporating pressure regulating valve 58 and check-valves VII 48, and the bypass path through refrigeration compressor 37 enters into air-conditioning gas-liquid separator 23 again; Some refrigerant liquid evaporates in refrigerating evaporator 49, the gas coolant of discharging is through check-valves V 30, get back to freezing gas-liquid separator 62, the bypass path of process refrigerant condenser 54 enters into refrigerated gas liquid/gas separator 31 mixes with the gas coolant that refrigeration is discharged with evaporimeter 43, enters into air-conditioning gas-liquid separator 23 in the lump.After these three strands of refrigerants mix, get back to the suction side of air conditioner compressed unit 13.Circulate so repeatedly.This situation, refrigeration can rise to the evaporating pressure identical with air-conditioning indoor heat converter 27 with evaporimeter 43 and freezing evaporating pressure with evaporimeter 49.For avoiding this situation, master controller 56 master controllers are transferred to each system controller with information, the operating frequency of compressor of air conditioner I 13A will be improved, reduce its pressure of inspiration(Pi) to refrigeration with the suitable evaporating pressure of evaporimeter 43 (if drop to the evaporating pressure of freezing usefulness evaporimeter 49, the pressure of inspiration(Pi) of air conditioner compressed unit 13 is too low, and is unfavorable to compressor).Like this, the evaporating temperature of household freezer raises, and can not lose but freeze product in the short time.The evaporating pressure of air-conditioning indoor heat converter 27 reduces, and refrigerating capacity will descend to some extent.
(2) air-conditioning heats state
Room conditioning controller 28 is carried predetermined data to outdoor air-conditioner controller 26 and master controller 56, and master controller 56 is carried these data to outdoor cooling controller 32, indoor refrigeration controller 50 and indoor freezing controller 55.After outdoor air-conditioner controller 26 receives data, the inlet I 14A (with the connector of oil eliminator 10) of four-way change-over valve 14 is communicated with inlet II 14B (with the connector of air-conditioning indoor side heat exchanger 27), to export II 14D (with the connector of air conditioner room outdoor heat exchanger 16) is communicated with outlet I 14C (with the connector of gas-liquid separator 23), the air-conditioning system expansion valve becomes full-gear, makes compressor of air conditioner I 13A and compressor of air conditioner II 13B operation.Because the change of the connection form of four-way change-over valve, make refrigerant flow with refrigerating operaton the time opposite.At this moment, from the high temperature and high pressure gas refrigerant of compressor of air conditioner 13A and 13B discharge, process oil eliminator 10 and four-way change-over valve 14 enter the indoor heat converter 27 from the former outlet of indoor heat converter 27.Indoor heat converter 27 utilizes pressure fan 15 to carry out the room air ventilation, and refrigerant heats and condensation room air in this heat release.The refrigerant of liquefaction flows out from the former inlet of indoor heat converter 27 in indoor heat converter 27, enters into reservoir 36 through expansion valve II 18 and check-valves X 61.Enter the refrigerant of reservoir 36, lead up to former inlet 36B, inlet chamber outer heat-exchanger 16 evaporations after the 17 throttling step-downs of expansion valve I.Low-temp low-pressure gas coolant after the evaporation, process four-way change-over valve 14, air-conditioning gas-liquid separator 23 are got back to the suction side of air conditioner compressed unit 13.Circulation heats so repeatedly; Flow out by reservoir outlet II 36C on another road of refrigerant in the reservoir 36, through behind the device for drying and filtering 40, be divided into two branch roads: the refrigerant in first branch road is through expansion valve IV 33, enter into heat-exchangers of the plate type 29 evaporations from an inlet 29C of heat-exchangers of the plate type 29, carried out cold to another road refrigerant liquid in the heat-exchangers of the plate type 29, the low temperature cold media gas that the evaporation back forms flows out from outlet 29D, enter the pipeline between one of four-way change-over valve 14 outlet and the check-valves VIII 59, get back to air-conditioning gas-liquid separator 23, enter the suction side of compressor bank 13 again, finish circulation.Second branch road enters from an inlet 29A of heat-exchangers of the plate type 29, after cold excessively, divide two-way to flow out from outlet 29B: the one tunnel enters refrigeration evaporator 43 evaporations after low pressure is reduced in 21 throttlings of expansion valve III, the cryogenic gas refrigerant that comes out from refrigeration evaporator 43 passes through evaporating pressure mediation valve 58 successively, check-valves VII 48 and refrigerated gas liquid/gas separator 31 are back to the suction side of refrigeration compressor 37, through being drained into the inlet of air-conditioning gas-liquid separator 23 after 37 compressions of refrigeration compressor, after converging with the cryogenic gas of air-conditioning indoor heat converter 27, supply with air conditioner compressed unit 13A through air-conditioning gas-liquid separator 23, the suction side of 13B, circulation so repeatedly; Another road enters refrigerating evaporator 49 evaporations after low pressure is reduced in 51 throttlings of expansion valve V, the cryogenic gas refrigerant that comes out from refrigerating evaporator 49 is back to the suction side of refrigerant condenser 54 successively through check-valves V 30, freezing gas-liquid separator 62, through being drained into the entrance side of refrigerated gas liquid/gas separator 31 after refrigerant condenser 54 compressions, after the cryogenic gas of discharging with refrigeration evaporator 43 converges, enter the suction side that refrigerates compressor 37 through refrigerated gas liquid/gas separator 31, repeat the refrigerating system circulation again.
Operation when air-conditioning heats under the air conditioner compressed unit failure condition:
System is according to air conditioner compressed unit fault alarm, and feedback information is given master controller 56, and master controller 56 is transferred to information each system controller again.System closes magnetic valve III 46, magnetic valve IV 47, expansion valve I 17, expansion valve IV 33, opens magnetic valve I 35.At this moment, refrigeration compressor 37 is discharged the high temperature and high pressure gas refrigerant that side is discharged, pass through the bypass path (forming) and the oil eliminator 10 of air-conditioning gas-liquid separator 23, air conditioner compressed unit 13 successively by check-valves IV 22 and pipeline, in air-conditioning indoor heat converter 27, behind the condensation liquefaction, enter in the reservoir 36.Refrigerant liquid in the reservoir is only supplied with refrigeration evaporimeter 43 and freezing with evaporimeter 49.Refrigerant flows out by reservoir outlet II 36C, through behind the device for drying and filtering 40, refrigerant enters from the inlet I 29A of heat-exchangers of the plate type 29, do not carry out cold, 29B flows out from the outlet II, divides two-way to enter refrigeration evaporator 43 and refrigerating evaporator evaporation through expansion valve III 21 and expansion valve V 51 respectively.Pass through evaporating pressure mediation valve 58, check-valves VII 48, refrigerated gas liquid/gas separator 31 and check-valves V 30 respectively, reach the suction side that freezing gas-liquid separator 62 turns back to refrigeration compressor 37 and refrigerant condenser from the cryogenic gas refrigerant of refrigeration evaporator 43 and refrigerating evaporator outflow, circulate so repeatedly.
Operation when air-conditioning heats under the refrigeration compressor fault situation:
System is according to refrigeration compressor 37 fault alarms, and feedback information is given master controller 56, and master controller 56 is transferred to information each system controller again.System will close magnetic valve V 52.At this moment, refrigerant condenser 54 is discharged the gas coolant that side is discharged, after the gas coolant of refrigeration evaporator 43 discharges mixes, pass through refrigerated gas liquid/gas separator 31 successively, the bypass path (forming) and the air-conditioning gas-liquid separator I 23 of refrigeration compressor 37 by check-valves VI 42 and pipeline, after the cold media gas of air conditioner outdoor heat exchanger 27 discharges mixes, enter into the suction side of air conditioner compressed unit 13.Through the compression of air conditioner compressed unit 13, the high temperature and high pressure gas refrigerant of discharge enters into reservoir 36 behind the condensation liquefaction in air-conditioning indoor side heat exchanger 27.Circulate so repeatedly.In this case, owing to lacked the two-stage compression process of refrigeration compressor, cold media gas pressure by check-valves VI 42 is lower than the cold media gas pressure that air conditioner outdoor heat exchanger 16 is discharged, and can cause the pressure at expulsion of refrigerant condenser 54 to raise like this, and is unfavorable to refrigerant condenser 54; Simultaneously, refrigeration is with evaporimeter 43) evaporating pressure also can raise.For avoiding this situation, refrigeration controller 50 and the freezing system device 55 of control are given master controller 56 with feedback information, master controller 56 communicates information to outdoor air-conditioner controller 26, improve the operating frequency of compressor of air conditioner I 13A, to reduce pressure of inspiration(Pi), make it be reduced to the evaporating pressure of refrigeration with evaporimeter 43, at this moment the pressure at expulsion of refrigerant condenser 54 recovers normal.The evaporating temperature of evaporimeter is used in refrigeration because the existence of evaporating pressure regulating valve 58 can be kept stable.
Operation when air-conditioning heats under the refrigerant condenser failure condition:
System is according to refrigerant condenser 54 fault alarms, and feedback information is given master controller 56, and master controller 56 is transferred to information each system controller again, and system will close magnetic valve VI 53).Like this, from the low-temp low-pressure cold media gas freezing gas-liquid separator 62 of process of refrigerating evaporator 49 discharges and the bypass path of refrigerant condenser 54, with enter refrigerated gas liquid/gas separator 31 after gas coolant that refrigeration evaporator 43 is discharged mixes, enter the suction side that refrigerates compressor 37 again, circulate.In this case, owing to lacked the one-level compression process of refrigerant condenser 54, gas coolant pressure by check-valves III 19 is lower than the gas coolant pressure that refrigeration evaporator 43 comes out, and can cause the evaporating pressure of refrigerating evaporator 49 to raise like this, and evaporating temperature raises.For avoiding this situation, freezing controller 55 is given master controller 56 with feedback information, master controller 56 is transferred to cooling controller 32 with information, improve the operating frequency of refrigeration compressor 37, to reduce pressure of inspiration(Pi), make its evaporating pressure that is reduced to refrigerating evaporator 49, guarantee to be frozen the safety of article.The evaporating pressure of refrigeration evaporator 43 is guaranteed by evaporating pressure regulating valve 58.
Operation when air-conditioning heats under air conditioner compressed unit and the refrigeration compressor simultaneous faults situation:
System is according to air conditioner compressed unit 13 and refrigeration compressor 37 fault alarms, feedback information is to master controller 56, master controller is transferred to information each system controller again, system with magnetic valve III 46, magnetic valve IV 47, magnetic valve V 52,, expansion valve I 17, expansion valve IV 33 close; Open magnetic valve I 35 and magnetic valve II 41.At this moment, refrigerant condenser 54 is discharged the gas coolant that side is discharged, pass through bypass path, the air-conditioning gas-liquid separator 23 of refrigerated gas liquid/gas separator 31, refrigeration compressor 37 successively, the bypass path of air conditioner compressed unit and oil eliminator 10, in air-conditioning indoor heat converter 27, behind the condensation liquefaction, enter reservoir 36.At this moment, air conditioner outdoor heat exchanger 16 is closed, the refrigerant liquid that comes out from reservoir 36 is without cold excessively, through evaporation in refrigerating evaporator 4 after 51 throttlings of expansion valve V, when temperature in the storehouse of household freezer 4 drops to setting value, system closing expansion valve V 51, open expansion valve III 21, make refrigerant enter refrigeration evaporator 43 evaporations, the gas coolant that refrigeration evaporator 43 is discharged is through evaporating pressure regulating valve 58 and magnetic valve II 41, enter freezing gas-liquid separator 62, return the suction side of refrigerant condenser 54.When temperature recovery in the storehouse of household freezer 4 is high during to certain value, system closing expansion valve III 21 is opened expansion valve V 51 and is evaporated in evaporimeter 4 freezing.Circulating so repeatedly.
Operation when air-conditioning heats under air conditioner compressed unit and the refrigerant condenser simultaneous faults situation:
System is according to air conditioner compressed unit 13 and refrigerant condenser 54 fault alarms, feedback information is to master controller 56, master controller is transferred to information each system controller again, system with magnetic valve III 46, magnetic valve IV 47, magnetic valve VI 53,, expansion valve I 17, expansion valve IV 33 close; Open magnetic valve I 35.At this moment, refrigeration compressor 37 is discharged the gas coolant that side is discharged, and passes through air-conditioning gas-liquid separator 23 successively, and the bypass path of air conditioner compressed unit 13 and oil eliminator 10 behind the condensation liquefaction, enter reservoir 36 in air-conditioning indoor heat converter 27.At this moment, air conditioner outdoor heat exchanger 16 is closed, and the refrigerant liquid in the reservoir did not carry out cold, directly supplies with refrigeration evaporator 43 and freezing with evaporimeter 49 evaporations.This situation, refrigerating evaporator 49 reach the same evaporating pressure of refrigeration evaporator 43.Because the evaporating pressure of refrigerating evaporator 49 raises, feedback information is given master controller 56, and master controller 56 is transferred to each system controller with information, and system will improve the operating frequency of refrigeration compressor 37, make the evaporating pressure of refrigerating evaporator 49 be reduced to normal level, guarantee the safety of freezing product.The evaporating pressure of refrigeration evaporator 43 is guaranteed by evaporating pressure regulating valve 58.
Operation when air-conditioning heats under refrigeration compressor and the refrigerant condenser simultaneous faults situation:
Refrigeration compressor 37 and refrigerant condenser 54 simultaneous faults, system is according to refrigeration compressor 37 and refrigerant condenser 54 fault alarms, feedback information is to master controller 56, master controller 56 is transferred to each system controller with information, and system will close magnetic valve I 35, magnetic valve II 41, magnetic valve V 52, magnetic valve VI 53.At this moment, air conditioner compressed unit is discharged the high temperature and high pressure gas that side is discharged, and through oil eliminator 10, behind the condensation liquefaction, enters reservoir 36 in air-conditioning indoor heat converter 27.Part refrigerant liquid comes out from reservoir 36, evaporation in air conditioner outdoor heat exchanger 16, and the gas coolant of discharge through four-way change-over valve 14 and check-valves VIII 59, enters into air-conditioning gas-liquid separator 23; Part refrigerant liquid enters the refrigeration evaporator evaporation from reservoir 36, the gas coolant of discharging, get back to refrigerated gas liquid/gas separator 31 through evaporating pressure regulating valve and check-valves VII 48, the bypass path through refrigeration compressor 37 enters into air-conditioning gas-liquid separator 23 again; Some refrigerant liquid enters in refrigerating evaporator 49 evaporations from reservoir 36, the gas coolant of discharging is got back to freezing gas-liquid separator 62 through check-valves V 30, the bypass path of process refrigerant condenser 54 enters into refrigerated gas liquid/gas separator 31 mixes with the gas coolant that refrigeration evaporator 43 is discharged, and enters air-conditioning gas-liquid separator 23.After these three strands of refrigerants mix, get back to the suction side of air conditioner compressed unit 13.Circulate so repeatedly.In this case, the evaporating pressure of refrigeration evaporator 43 and refrigerating evaporator 49 can rise to the evaporating pressure identical with air conditioner outdoor heat exchanger 16.For avoiding this situation, information will feed back to master controller 56, master controller is transferred to information each system controller again, system will improve the operating frequency of compressor of air conditioner I 13A, reduce pressure of inspiration(Pi) to the evaporating pressure suitable with refrigeration evaporator 43 (if drop to the evaporating pressure of freezing usefulness evaporimeter 49, the pressure of inspiration(Pi) of air conditioner compressed unit 13 is too low, and is unfavorable to compressor).Like this, the evaporating temperature of household freezer raises, and can not lose but freeze product in the short time.The evaporating pressure of air conditioner outdoor heat exchanger 16 reduces, and exchange capability of heat can descend to some extent.The evaporating pressure of refrigeration evaporator 43 is guaranteed by evaporating pressure regulating valve 58.
(3) air-conditioning holding state
This state, the inlet I 14A of four-way change-over valve 14 (with the connector of oil eliminator 10) is communicated with an outlet II 14D (with the connector of outdoor heat exchanger 16), inlet II 14B (with the connector of air-conditioning indoor side heat exchanger 27) is communicated with another outlet I 14C (with the connector of gas-liquid separator I 23), expansion valve I 17 standard-sized sheets, magnetic valve II 41, magnetic valve III 46, magnetic valve IV 47, expansion valve II (18) are closed; Magnetic valve I 35 is opened.Like this, entering into oil eliminator 10 through the refrigerant of refrigeration compressor 37 and the refrigerant condenser 54 two stages of compression bypass path by air conditioner compressed unit circulates.
The air-conditioning holding state is the operation of refrigeration compressor fault down:
System reports to the police according to the refrigeration compressor fault, and feedback information is given master controller 56, and master controller 56 is transferred to information each system controller again, air-conditioner controller 26 sends signal, control compressor I 13A opens, and closes magnetic valve V 52 simultaneously, opens magnetic valve III 46.At this moment, refrigerant condenser 54 is discharged the gas coolant that side is discharged, and after the cold media gas of discharging through refrigerated gas liquid/gas separator II 31 and bypass path that refrigerates compressor 37 and air-conditioning indoor heat converter 27 mixes successively, enters into the suction side of compressor of air conditioner I 13.At this moment, owing to lacked the two-stage compression process of refrigeration compressor, cold media gas pressure by check-valves VI 42 is lower than the cold media gas pressure that air-conditioning indoor heat converter 27 is discharged, and can cause the pressure at expulsion of refrigerant condenser 54 to raise, and is unfavorable to refrigerant condenser 54; Simultaneously, the evaporating pressure of refrigeration evaporator 43 also can raise.For avoiding this situation, refrigeration controller 50 and freezing controller 55 are given master controller 56 with feedback information, master controller 56 communicates information to outdoor air-conditioner controller 26, improve the operating frequency of compressor of air conditioner I 13A, to reduce pressure of inspiration(Pi), make it be reduced to the evaporating pressure of refrigeration with evaporimeter 43, at this moment the pressure at expulsion of refrigerant condenser 54 also recovers normal.
The operation of refrigerant condenser fault under the air-conditioning holding state:
System is according to refrigerant condenser 54 warning of breaking down, and feedback information is given master controller 56, and master controller 56 is transferred to information each system controller again, and system will close magnetic valve VI 53.At this moment, the low-temp low-pressure cold media gas of discharging from refrigerating evaporator 49 through the bypass path of freezing gas-liquid separator 62 and refrigerant condenser 54 with enter into refrigerated gas liquid/gas separator 31 after gas coolant that refrigeration evaporator 43 is discharged mixes, enter the suction side that refrigerates compressor 37 again.After the compression through refrigeration compressor 37, the high temperature and high pressure gas refrigerant of discharge is through the bypass path of air conditioner compressed unit, and condensation liquefaction in air conditioner outdoor heat exchanger 16 enters reservoir 36.
This situation, owing to lacked the one-level compression process of refrigerant condenser 54, the gas coolant pressure by check-valves III 19 is lower than the gas coolant pressure that refrigeration evaporator 43 comes out.Can cause freezing evaporating pressure with evaporimeter 49 to raise like this, evaporating temperature raises.For avoiding this situation, freezing controller 55 is given master controller 56 with feedback information, and master controller 56 is transferred to cooling controller 32 with information, improves the operating frequency of refrigeration compressor 37, to reduce pressure of inspiration(Pi), make it be reduced to the evaporating pressure of refrigerating evaporator 49.Assurance is frozen the safety of article.The evaporating pressure of refrigeration evaporator 43 is guaranteed by evaporating pressure regulating valve 58.
The operation of refrigeration compressor and refrigerant condenser simultaneous faults under the air-conditioning holding state:
System reports to the police according to refrigeration compressor 37 and refrigerant condenser 54 simultaneous faults, feedback information is given master controller 56, master controller 56 is transferred to each system controller with information, system will close magnetic valve I 35, magnetic valve V 52, magnetic valve VI 53, open expansion valve IV 33, magnetic valve III 46 and magnetic valve IV 47.At this moment, air conditioner compressed unit 13 is opened, and the high temperature and high pressure gas of discharging after its compression enters into air conditioner outdoor heat exchanger 16 condensation liquefactions through oil eliminator 10 and four-way change-over valve 14 successively, and condensed liquid enters reservoir 36.36C flows out from outlet, through behind the device for drying and filtering 40, be divided into two branch roads: the first fork pipeline is through expansion valve IV 33, enter into heat exchanger 29 evaporations from an inlet 29C of heat-exchangers of the plate type 29, cold excessively to another road refrigerant liquid in the heat exchanger 29, the low temperature cold media gas after the evaporation is discharged from outlet 29D, enter in the outlet and the pipeline between the check-valves VIII 59 of four-way change-over valve 14, through check-valves VIII 59, get back to the suction side of air conditioner compressed unit 13, finish a circulation.An inlet 29A of the second fork pipeline slave plate formula heat exchanger 29 enters, is crossed cold after, 29B flows out from outlet, respectively through expansion valve III 21 with expansion valve V 51 enters refrigeration evaporator 43 and refrigerating evaporator 49 evaporates.Cryogenic gas refrigerant after the evaporation, get back to refrigerated gas liquid/gas separator 31 through evaporating pressure mediation valve 58 and check-valves VII 48 respectively, bypass path through check-valves V 30, gas-liquid separator III 62 and refrigerant condenser 54, after getting back to refrigerated gas liquid/gas separator 31 and the discharge gas of refrigeration evaporator 43 mixing, bypass path, air-conditioning gas-liquid separator 23 through refrigeration compressor 37, get back to the suction side of air conditioner compressed unit 13, circulate so repeatedly.At this moment, if compressor of air conditioner I 13A works by normal air conditioning condition operating frequency, the evaporating pressure of refrigeration evaporator 43 and refrigerating evaporator 49 all will raise.So compressor of air conditioner 13A will improve its operating frequency, pressure of inspiration(Pi) is reduced to and the suitable pressure of refrigeration evaporator 43 evaporating pressures, guarantee the evaporating pressure of refrigeration evaporator 43; The evaporating pressure of refrigerating evaporator 49 will be identical with the evaporating pressure of refrigeration evaporator 43, be higher than normal condition.But can not cause the loss of freezing product in the short time.
Claims (5)
1. air-condition freezing and refrigeration system device, this system and device comprises air-conditioning system, refrigerating system and refrigeration system, move by the controller control system, compressor bank (the 13A that it is characterized in that described air-conditioning system, 13B), the compressor (54) of compressor of refrigerating system (37) and refrigeration system is connected in series by pipeline, be that refrigeration system compressor (54) outlet side is connected with gas-liquid separator (31) inlet of refrigerating system, the outlet side of refrigerating system compressor (37) is connected with gas-liquid separator (23) inlet of air-conditioning system, air-conditioning system gas-liquid separator (23), the outlet of refrigerating system gas-liquid separator (31) and refrigeration system gas-liquid separator (62) respectively with the compressor bank (13A of air-conditioning system, 13B), the suction side pipeline of the compressor (54) of compressor of refrigerating system (37) and refrigeration system is connected, air-conditioning compressor group (13A, 13B), be provided with bypass path between the suction side of refrigerating system compressor (37) and refrigeration system compressor (54) and the outlet side, bypass path is by the check-valves (22 that is connected in parallel between the suction side of compressor and outlet side, 42,19) form, check-valves (22,42,19) inlet is connected check-valves (22 with the suction side of compressor, 42,19) outlet is connected with the outlet side of compressor; Described air-conditioning compressor group comprises two compressors that are connected in parallel; The shared oil eliminator of described air-conditioning system, refrigerating system and refrigeration system (10), a reservoir (36) and an oil storage tank (57), the inlet of described shared oil eliminator (10) is connected with the pipeline of the outlet side of air-conditioning compressor group, and outlet is connected with the inlet I (14A) of four-way change-over valve (14); The inlet (36B) of described shared reservoir (36) is connected with the outlet of the heat exchanger (16) of the outdoor unit of air-conditioning system, the outlet I (36A) of reservoir is connected with the inlet of the heat exchanger (27) of the indoor unit of air-conditioning system, being divided into two pipelines behind outlet II (36C) the drying filter (40) of reservoir passes through expansion valve III (21) respectively and is connected with the inlet of refrigerating system evaporimeter (43) and the inlet of refrigeration system evaporimeter (49) with expansion valve V (51), the outlet of the heat exchanger (27) of the indoor unit of air-conditioning system (2) is connected with the inlet II (14B) of four-way change-over valve, the outlet I (14C) of four-way change-over valve is connected with the inlet of the gas-liquid separator (23) of air-conditioning system, the outlet II (14D) of four-way change-over valve is connected with the heat exchanger (16) of air-conditioning system outdoor unit inlet, the outlet of refrigerating system evaporimeter (43) is connected with refrigerating system gas-liquid separator (31) inlet, and the outlet of refrigeration system evaporimeter (49) is connected with refrigeration system gas-liquid separator (62) inlet; Described shared oil storage tank (57) inlet is connected with the oily outlet of oil eliminator (10), the outlet of oil storage tank (57) is divided into four the tunnel, have magnetic valve (46 with four, 47,52,53) branch road respectively with the connector of the crankcase of the compressor I (13A) of air-conditioning system, the connector of the crankcase of the compressor II (13B) of air-conditioning system, the connector of the crankcase of refrigerating system compressor (37) is connected with the connector of the crankcase of refrigeration system compressor (54), the balance pipe of oil storage tank (57) is divided into three the tunnel, the first via is connected through the inlet of check-valves VIII with the gas-liquid separator (23) of air-conditioning system, the second the tunnel is connected with the inlet of check-valves VII with the gas-liquid separator (31) of refrigerating system through the magnetic valve I, and Third Road is connected with the inlet of check-valves V (30) with the gas-liquid separator (62) of refrigeration system through the magnetic valve II; Every compressor of described air-conditioning system, refrigerating system and refrigeration system is provided with an oil level controllers (63,64,44,45); Described controller comprises master controller (56), outdoor air-conditioner controller (26), room conditioning controller (28), outdoor cooling controller (32), indoor refrigeration controller (50) and indoor freezing controller (55), and master controller carries out data communication by circuit and outdoor air-conditioner controller (26), room conditioning controller (28), outdoor cooling controller (32), indoor refrigeration controller (50) and indoor freezing controller (55).
2. a kind of air-condition freezing and refrigeration system device according to claim 1 is characterized in that two compressors of described air-conditioning system, and wherein a compressor is that another is the constant speed drive compressor by the compressor of Frequency Converter Control running.
3. a kind of air-condition freezing and refrigeration system device according to claim 2, be connected with expansion valve II (18) and the check-valves X (61) that is connected in parallel on the outlet I (36A) that it is characterized in that described shared reservoir (36) and the pipeline that the inlet of the heat exchanger (27) of the indoor unit of air-conditioning system is connected, expansion valve II (18) is connected with the outlet I (36A) of reservoir with check-valves X (61) inlet, and the outlet of expansion valve II (18) and check-valves X (61) is connected with the inlet of the heat exchanger (27) of the indoor unit of air-conditioning system.
4. a kind of air-condition freezing and refrigeration system device according to claim 3, be connected with the plate type heat exchanger (29) that has expansion valve IV (33) branch road in outlet II (36C) drying filter (40) back that it is characterized in that described shared reservoir and the pipeline that the inlet of the inlet of refrigerating system evaporimeter (43) and refrigeration system evaporimeter (49) is connected, the inlet of expansion valve IV (33) is connected with device for drying and filtering (40) outlet, the outlet of expansion valve IV (33) is connected with the inlet (29C) of plate type heat exchanger (29) one side heat exchanger tubes, the heat exchanger tube outlet (29D) of plate type heat exchanger the same side is connected with the outlet I 14C of air-conditioning system four-way change-over valve 14 and the pipeline between the check-valves VIII 59, gas-liquid separator (23) inlet connects, plate type heat exchanger opposite side heat exchanger tube inlet (29A) is connected with device for drying and filtering (40) outlet, plate type heat exchanger opposite side heat exchanger tube outlet (29B) is divided into two-way, is connected with the inlet of refrigerating system evaporimeter (43) and the inlet of refrigeration system evaporimeter (49) respectively.
5. a kind of air-condition freezing and refrigeration system device according to claim 4 is characterized in that two compressors (13A, 13B) of described air-conditioning system and the compressor (43) of refrigerating system are the compressors with energy adjustment function.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102901189A (en) * | 2012-09-29 | 2013-01-30 | 四川长虹电器股份有限公司 | Air conditioning system, control system and air conditioning control method |
| WO2014108089A1 (en) * | 2013-01-11 | 2014-07-17 | 四川长虹电器股份有限公司 | Integrated control system for domestic air conditioner and startup method thereof |
| CN105570993A (en) * | 2012-08-02 | 2016-05-11 | 三菱电机株式会社 | Air-conditioning apparatus |
| CN109532388A (en) * | 2018-11-26 | 2019-03-29 | 朱士政 | A kind of vehicle-mounted refrigerator central control system of new energy |
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| CN102818317A (en) * | 2012-08-27 | 2012-12-12 | 广东美的暖通设备有限公司 | Air conditioner outdoor unit, air conditioner and method for controlling capacity output of air conditioner outdoor unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5894735A (en) * | 1996-09-05 | 1999-04-20 | Yamaha Hatsudoki Kabushiki Kaisha | Heat pump system using energy-supplying mechanism to control refrigerant pressure |
| CN1222966A (en) * | 1997-04-08 | 1999-07-14 | 大金工业株式会社 | Refrigerator |
| CN1677023A (en) * | 2004-03-29 | 2005-10-05 | 三洋电机株式会社 | Air-conditioner refrigerator and control method therefor |
| JP2006300507A (en) * | 2005-03-25 | 2006-11-02 | Daikin Ind Ltd | Refrigeration device |
| JP2009115336A (en) * | 2007-11-02 | 2009-05-28 | Daikin Ind Ltd | Refrigeration system |
| CN201724461U (en) * | 2010-07-01 | 2011-01-26 | 大连三洋压缩机有限公司 | Refrigeration and cold storage system device for air conditioner |
-
2010
- 2010-07-01 CN CN2010102170441A patent/CN101907371B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5894735A (en) * | 1996-09-05 | 1999-04-20 | Yamaha Hatsudoki Kabushiki Kaisha | Heat pump system using energy-supplying mechanism to control refrigerant pressure |
| CN1222966A (en) * | 1997-04-08 | 1999-07-14 | 大金工业株式会社 | Refrigerator |
| CN1677023A (en) * | 2004-03-29 | 2005-10-05 | 三洋电机株式会社 | Air-conditioner refrigerator and control method therefor |
| JP2006300507A (en) * | 2005-03-25 | 2006-11-02 | Daikin Ind Ltd | Refrigeration device |
| JP2009115336A (en) * | 2007-11-02 | 2009-05-28 | Daikin Ind Ltd | Refrigeration system |
| CN201724461U (en) * | 2010-07-01 | 2011-01-26 | 大连三洋压缩机有限公司 | Refrigeration and cold storage system device for air conditioner |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570993A (en) * | 2012-08-02 | 2016-05-11 | 三菱电机株式会社 | Air-conditioning apparatus |
| CN105570993B (en) * | 2012-08-02 | 2018-06-15 | 三菱电机株式会社 | Air-conditioning equipment |
| CN102901189A (en) * | 2012-09-29 | 2013-01-30 | 四川长虹电器股份有限公司 | Air conditioning system, control system and air conditioning control method |
| CN102901189B (en) * | 2012-09-29 | 2014-12-24 | 四川长虹电器股份有限公司 | Air conditioning system, control system and air conditioning control method |
| WO2014108089A1 (en) * | 2013-01-11 | 2014-07-17 | 四川长虹电器股份有限公司 | Integrated control system for domestic air conditioner and startup method thereof |
| CN109532388A (en) * | 2018-11-26 | 2019-03-29 | 朱士政 | A kind of vehicle-mounted refrigerator central control system of new energy |
| CN109532388B (en) * | 2018-11-26 | 2022-02-01 | 朱士政 | Vehicle-mounted refrigerator central control system for new energy |
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| CN101907371B (en) | 2011-12-14 |
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