CN201964678U - All-weather refrigerating device - Google Patents
All-weather refrigerating device Download PDFInfo
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- CN201964678U CN201964678U CN2011200855707U CN201120085570U CN201964678U CN 201964678 U CN201964678 U CN 201964678U CN 2011200855707 U CN2011200855707 U CN 2011200855707U CN 201120085570 U CN201120085570 U CN 201120085570U CN 201964678 U CN201964678 U CN 201964678U
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- temperature
- magnetic valve
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- 230000005494 condensation Effects 0.000 claims description 36
- 238000009833 condensation Methods 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 24
- 230000000694 effects Effects 0.000 abstract description 15
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 241000196324 Embryophyta Species 0.000 description 52
- 238000005057 refrigeration Methods 0.000 description 22
- 239000003507 refrigerant Substances 0.000 description 19
- 108010053481 Antifreeze Proteins Proteins 0.000 description 6
- 230000002528 anti-freeze Effects 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
An all-weather refrigerating device includes a controller, a compressor, an evaporator, a condensing branch and a capillary branch. The condensing branch includes a first condensing branch and a second condensing branch connected in parallel, as well as a condensing branch direction controller; the capillary branch includes a first capillary branch and a second capillary branch connected in parallel, as well as a capillary branch direction controller, and further includes a bypass branch for connecting a condensing branch outlet and an evaporator outlet; and the bypass branch includes a third capillary and a pressure switch. The all-weather refrigerating device adopts two condensers connected in parallel, two capillaries connected in parallel, and the bypass branch including the third capillary, and can realize various combinations of different condensers and different capillaries, thereby forming five different refrigerating modes suitable for refrigerating at different environmental temperatures, ensuring the normal running of the refrigerating device at different environmental temperatures (low temperature below subzero 5 DEG C, and high temperature above 50 DEG C), and enabling the refrigerating effect to be more ideal.
Description
Technical field
The utility model relates to the air-conditioner technical field, more particularly, relates to a kind of more round-the-clock refrigerating plant of wide temperature environment that is fit to.
Background technology
Existing air-conditioning refrigeration plant, generally be divided into three types of T1, T2 and T3 according to the refrigerating environment temperature range, wherein, the ambient temperature range of T1 type is 18-43 ℃, the ambient temperature range of T2 type is 10-35 ℃, and the ambient temperature range of T3 type is 21-52 ℃.Existing operation of air conditioning systems generally is divided into conventional refrigeration (T1, T2 environment) and high temperature refrigeration (T3 environment) two big class modes design.Refrigerating plant at conventional refrigerating environment design can not normally use under the high temperature refrigerating environment, and can not normally use under conventional refrigerating environment at the refrigerating plant of high temperature refrigerating environment design.Even refrigeration and high temperature freeze two types and design refrigerating plant routinely, when environment temperature, all can not normally be freezed during greater than 52 ℃ less than 10 ℃ or environment temperature.
Because present some special installation, need annual cooling, but the temperature difference between winter and summer is just very big, as China northeast, the temperature in winter is just through being everlasting below-10 ℃, the temperature in summer is more than 35 ℃, and particularly air-conditioner outdoor unit is owing to constantly heat release, and local ambient temperature just often remains on more than 45 ℃.Because the environmental working condition temperature differs too big, makes existing refrigerating plant be difficult to operate as normal under ultralow working temperature (5 ℃) and superelevation working temperature (50 ℃).
Some are also arranged at present separately at the improvement technology of air-conditioning refrigeration plant under superhigh temperature or the ultralow temperature, as the patent No. is 200710071556.X, publication number is that the Chinese patent of CN101256021A discloses a kind of " air-conditioner control method of energy cryogenic refrigeration ", utilize the indoor coil pipe sensor to detect the function of coil temperature, when detecting indoor coil and being lower than certain temperature value T1 duration t1, and more than the compressor continuous working period ty1, stop outer blower fan operation, reduce heat exchange; When indoor coil is lower than certain particular temperature value T2 again and flies duration t2, and more than the compressor continuous working period ty2, close compressor, inner blower carries out the anti-freeze protection by the wind speed setting operation; Complete machine recovers normal operation when indoor coil is higher than certain temperature value T3, opens outer blower fan and compressor, thereby air-conditioning can normally be freezed under low temperature condition.This patent strengthens the cryogenic refrigeration effect of air-conditioner by the mode of improving anti-freeze, can normally freeze near the temperature 0 ℃, but can not solve the problem that super low temperature refrigeration more can not solve the high temperature refrigeration simultaneously.And for example the patent No. is 200710131770.X, publication number is that the Chinese patent of CN101118108A discloses a kind of " liquid-jet device in the high-temperature air conditioner refrigeration system ", by the hydrojet capillary liquid refrigerants is arranged to the compressor air suction mouth, thereby reduce the suction temperature of compressor, improve the running operating mode of compressor, finally reach the delivery temperature that reduces compressor.This patent at the T3 compressor or the employing hydrojet technology of T3 environment, can satisfy refrigeration under 55 ℃ of high temperature substantially, but can not solve the technical problem of cryogenic refrigeration or super low temperature refrigeration simultaneously specially.
The utility model content
The utility model purpose is intended to overcome above-mentioned the deficiencies in the prior art, and a kind of round-the-clock refrigerating plant of using in the wideer temperature environment of being suitable for is provided.Refrigerating plant all can normally be used under high temperature, middle temperature, low temperature environment.
The technical solution adopted in the utility model is: a kind of round-the-clock refrigerating plant, comprise controller, compressor, evaporimeter, condensation branch road, capillary branch road, described condensation branch road comprises that the first condensation branch road that is connected in parallel and the second condensation branch road and condensation branch road flow to controller, described capillary branch road comprises that the first capillary branch road that is connected in parallel and the second capillary branch road and capillary branch road flow to controller, also comprise connecting the bypass branch road that way outlet and evaporator outlet are propped up in condensation, described bypass branch road comprises three capillary and pressure switch.
In the above-mentioned round-the-clock refrigerating plant, described condensation branch road flows to controller and comprises first magnetic valve that is serially connected on the first condensation branch road and second magnetic valve that is serially connected on the second condensation branch road.
In the above-mentioned round-the-clock refrigerating plant, described capillary branch road flows to controller and comprises the 3rd magnetic valve that is serially connected on the first capillary branch road and the 4th magnetic valve that is serially connected on the second capillary branch road.
In the above-mentioned round-the-clock refrigerating plant, also comprise the liquid reservoir that is connected between compressor and the evaporimeter, the outlet of described bypass branch road connects liquid reservoir.
Compared with prior art, the utlity model has following advantage:
1) the utility model bypass line of adopting two condenser parallel connections, two capillary parallelings and comprising three capillary, can realize different condensers, different intercapillary multiple combination, thereby form five different refrigeration modes, be applicable under the different environment temperatures and freeze, guaranteed under different environment temperature such as low temperature below-5 degree and the high temperature more than 50 degree, refrigerating plant all can normally move, and makes refrigeration desirable more.
2) under the hot environment more than 43 degree, bypass line is opened, when system condensing pressure surpasses certain value, pressure switch is opened, make the liquid refrigerant after the three capillary throttling directly lead to liquid reservoir, thereby impel compressor to obtain cooling, solved the difficult problem of high temperature refrigeration.
Description of drawings
Fig. 1 is the refrigerant system configurations schematic diagram of existing round-the-clock refrigerating plant;
Fig. 2 is the refrigeration mode control flow chart of round-the-clock refrigerating plant of the present utility model.
The specific embodiment
As shown in Figure 1, full weather refrigerating plant comprises controller, the main refrigerating circuit of being made up of compressor 1, evaporimeter 6, condensation branch road, capillary branch road and liquid reservoir 7.The condensation branch road comprises first condenser, 21 branch roads and second condenser, 22 branch roads that are connected in parallel, and second magnetic valve 221 is connected in series on first magnetic valve, 211, the second condensers, 22 branch roads that are connected in series on first condenser, 21 branch roads.The capillary branch road comprises first capillary, 31 branch roads and second capillary, 32 branch roads that are connected in parallel, and the 4th magnetic valve 321 is connected in series on the 3rd magnetic valve 311, the second capillaries 32 branch roads that are connected in series on first capillary, 31 branch roads.Evaporimeter 6 connects liquid reservoir 7.Full weather refrigerating plant also comprises and connects the bypass branch road that way outlet and liquid reservoir 7 are propped up in condensation, and bypass is propped up route three capillary 33 and pressure switch 5 and is connected in series and forms.
As shown in Figure 2, after refrigerating plant is received the start action command, the preceding 3 minutes automatic superhigh temperature mode operations of selecting.Full 3 minutes of refrigerating plant accumulative total operation, Temperature Detector sensing chamber external environment temperature T.
When detecting outdoor environment temperature T≤-5 ℃, show that refrigerating plant freezes under ultra-low temperature surroundings.At this moment, the condensing heat-exchange effect that refrigerating plant need reduce the outside reduces indoor heat exchange effect, will improve the evaporating temperature of indoor simultaneously, and the purpose of these two kinds of measures is that the evaporimeter 6 of avoiding indoor frequently carries out the anti-freeze protection.
When detecting refrigerating plant and be in ultra-low temperature surroundings, refrigerating plant is selected the ultralow temperature pattern automatically: first magnetic valve 211 closes second magnetic valve 221 to be opened, 22 work of second condenser, the state that the 3rd magnetic valve 311 and the 4th magnetic valve 321 all are in out.The high-temperature high-pressure refrigerant that compressor 1 is discharged enters second condenser 22 through second magnetic valve 221, the cold-producing medium release heat, the cold-producing medium of liquefy enters indoor evaporator 6 through first capillary 31 and second capillary 32, airborne heat in the liquid refrigerant absorption chamber, the cold-producing medium that the becomes gaseous state liquid reservoir 7 of flowing through is sucked by compressor 1 and to compress.Because 22 of second condensers account for 1/3 or 1/4 of total condensation area, be equivalent to use the method that reduces the condensation area of outside to reduce the condensing heat-exchange effect.The state that the 3rd magnetic valve 311 and the 4th magnetic valve 321 all are in out; reduce the restriction effect of refrigerating plant; reduce the evaporation effect of evaporimeter 6, improve the evaporating temperature of indoor evaporator 6, thereby avoided indoor evaporator 6 because low temperature will frequently carry out the anti-freeze protection.
When detecting outdoor environment-5 ℃＜T≤10 ℃, show that refrigerating plant freezes under low temperature environment.At this moment, the refrigerating plant condensing heat-exchange effect that also needs to reduce the outside reduces indoor heat exchange effect.But because low temperature environment is than ultra-low temperature surroundings temperature height, refrigerating plant does not need to adjust evaporating temperature, can avoid indoor evaporator 6 frequently to carry out the anti-freeze protection yet.
When detecting refrigerating plant and be in low temperature environment, refrigerating plant is selected low temperature mode automatically: first magnetic valve 211 closes second magnetic valve 221 to be opened, 22 work of second condenser, the 3rd magnetic valve 311 closes the 4th magnetic valve 321 opens 32 throttling actions of second capillary.The high-temperature high-pressure refrigerant that compressor 1 is discharged enters second condenser 22 through second magnetic valve 221, the cold-producing medium release heat, the cold-producing medium of liquefy enters indoor evaporator 6 through second capillary 32, airborne heat in the liquid refrigerant absorption chamber, the cold-producing medium that the becomes gaseous state liquid reservoir 7 of flowing through is sucked by compressor 1 and to compress.Because 22 of second condensers account for 1/3 or 1/4 of total condensation area, the method that has been equivalent to reduce the condensation area of outside reduces the condensing heat-exchange effect.Second capillary 32 matches based under the cryogenic refrigeration at second condenser 22; also because the environment temperature raising; have only a capillary to work and also can avoid indoor evaporator 6 frequently to carry out the anti-freeze protection, also can improve evaporation effect simultaneously, improve refrigerating capacity.
When detecting 10 ℃＜T of outdoor environment≤43 ℃, show that refrigerating plant freezes under conventional temperature, refrigerating plant is selected normal mode automatically.At this moment, refrigerating plant is selected conventional condensation area and conventional throttle capillary tube.
When detecting refrigerating plant and be in conventional temperature environment, refrigerating plant is selected normal mode automatically: first magnetic valve 211 is driven second magnetic valve 221 and is closed, the 4th magnetic valve 321 passes, 31 throttling actions of first capillary are opened in 21 work of first condenser, the 3rd magnetic valve 311.The high-temperature high-pressure refrigerant that compressor 1 is discharged enters first condenser 21 through first magnetic valve 211, the cold-producing medium release heat, the cold-producing medium of liquefy enters indoor evaporator 6 through first capillary 31, airborne heat in the liquid refrigerant absorption chamber, the cold-producing medium that the becomes gaseous state liquid reservoir 7 of flowing through is sucked by compressor 1 and to compress.21 of first condensers account for 2/3 or 3/4 of total condensation area, quite Chang Gui condensation area.First capillary 31 matches under freezing based on routine with first condenser 21.
When detecting 43 ℃＜T of outdoor environment≤50 ℃, show that refrigerating plant at high temperature freezes.Because outdoor air reduces with the heat transfer temperature difference of condenser, cause condensation effect to descend.The pressure of refrigerating plant operation and the live load of compressor 1 increase, and the operating current of compressor 1 increases, and delivery temperature raises, and when serious, compressor 1 can not normally move.Therefore the control program of avoiding this situation to occur and adopting is as follows:
When detecting refrigerating plant and be in hot environment, refrigerating plant is selected high temperature mode automatically: the state that first magnetic valve 211 and second magnetic valve 221 are in out simultaneously, first condenser 21 and second condenser, 22 co-operation, the 3rd magnetic valve 311 is driven the 4th magnetic valve 321 and is closed, 31 throttling actions of first capillary, pressure switch 5 control three capillaries 33.The high-temperature high-pressure refrigerant that compressor 1 is discharged enters first condenser 21 and second condenser 22 through first magnetic valve 211 and second magnetic valve 221, the cold-producing medium release heat, the cold-producing medium of liquefy enters indoor evaporator 6 through first capillary 31, airborne heat in the liquid refrigerant absorption chamber, the cold-producing medium that the becomes gaseous state liquid reservoir 7 of flowing through is sucked by compressor 1 and to compress.When condensation outlet pressure 〉=23 kilogram, pressure switch 5 is opened, the cold-producing medium of part high temperature is after pressure switch 5, and the refrigerant injection that becomes low-temp low-pressure through three capillary 33 throttlings is in liquid reservoir 7 again, and refrigerant of low temperature enters in the liquid reservoir 7 and by compressor 1 and sucks.After pressure switch 5 was opened, the operating pressure of refrigerating plant descended, and when pressure was less than or equal to 21 kilograms, pressure switch 5 was closed.Under the hot environment, the condensation area that refrigerating plant uses increases than conventional refrigeration, improves condensation effect, reduces the pressure of refrigerating plant operation and the live load of compressor 1, and compressor 1 at high temperature can normally be moved.Compressor 1 cools down after having sucked refrigerant of low temperature, has reduced the operating temperature of compressor, has improved the anti-load-bearing capacity of compressor 1.
When detecting 50 ℃＜T of outdoor environment, show that refrigerating plant freezes under superhigh temperature.Because outdoor air further reduces with the heat transfer temperature difference of condenser, cause the condensation effect aggravation to descend.The pressure of refrigerating plant operation and the live load of compressor 1 increase considerably, and the operating current of compressor 1 increases significantly, and delivery temperature raises significantly, and when serious, compressor 1 can not normally move, simultaneously compressor 1 easier burning out.Therefore refrigerating plant avoids this situation to occur and the control program that adopts is as follows:
When detecting refrigerating plant and be in hyperthermal environments, refrigerating plant is selected the superhigh temperature pattern automatically: first magnetic valve 211 is driven second magnetic valve 221 and is opened, first condenser 21 and second condenser, 22 co-operation, the 3rd magnetic valve 311 is driven the 4th magnetic valve 321 and is opened, first capillary 31 and 32 throttling actions of second capillary, pressure switch 5 control three capillaries 33.The high-temperature high-pressure refrigerant that compressor 1 is discharged enters first condenser 21 and second condenser 22 through first magnetic valve 211 and second magnetic valve 221, the cold-producing medium release heat, the cold-producing medium of liquefy enters indoor evaporator 6 through first capillary 31 and second capillary 32, airborne heat in the liquid refrigerant absorption chamber, the cold-producing medium that the becomes gaseous state liquid reservoir 7 of flowing through is sucked by compressor 1 and to compress.When condensation outlet pressure 〉=23 kilogram, pressure switch 5 is opened, the cold-producing medium of part high temperature is after pressure switch 5, and the refrigerant injection that becomes low-temp low-pressure through three capillary 33 throttlings is in liquid reservoir 7 again, and refrigerant of low temperature sucks in liquid reservoir 7 and by compressor 1.After pressure switch 5 was opened, the operating pressure of refrigerating plant descended, and when pressure was less than or equal to 21 kilograms, pressure switch 5 was closed.Under the hyperthermal environments, the condensation area that refrigerating plant uses increases than conventional refrigeration, improves condensation effect, reduces the pressure of refrigerating plant operation and the live load of compressor 1, and compressor 1 can normally be moved under superhigh temperature substantially.Add the state that the 3rd magnetic valve 311, the 4th magnetic valve 321 are in out, first capillary 31 and second capillary 32 all work, and can reduce the compression ratio of refrigerating plant, also promptly reduce operating pressure, running current and the delivery temperature of compressor 1.More than two kinds of measures can guarantee compressor 1 normally operation under the environment of superhigh temperature.Compressor 1 cools down after having sucked refrigerant of low temperature, has reduced the operating temperature of compression, has improved the anti-load-bearing capacity of compressor 1.
In each refrigeration mode, the combination control table of first to fourth magnetic valve is with reference to following table:
| Refrigeration mode | First magnetic valve | Second magnetic valve | The 3rd magnetic valve | The 4th magnetic valve |
| The ultralow temperature pattern | Close | Open | Open | Open |
| Low temperature mode | Close | Open | Close | Open |
| Normal mode | Open | Close | Open | Close |
| High temperature mode | Open | Open | Open | Close |
| The superhigh temperature pattern | Open | Open | Open | Open |
Claims (4)
1. round-the-clock refrigerating plant, comprise controller, compressor, evaporimeter, the outdoor temperature detector, it is characterized in that: also comprise condensation branch road, capillary branch road, described condensation branch road comprises that the first condensation branch road that is connected in parallel and the second condensation branch road and condensation branch road flow to controller, described capillary branch road comprises that the first capillary branch road that is connected in parallel and the second capillary branch road and capillary branch road flow to controller, also comprise connecting the bypass branch road that way outlet and evaporator outlet are propped up in condensation, described bypass branch road comprises three capillary and pressure switch.
2. round-the-clock refrigerating plant according to claim 1 is characterized in that: described condensation branch road flows to controller and comprises first magnetic valve that is serially connected on the first condensation branch road and second magnetic valve that is serially connected on the second condensation branch road.
3. round-the-clock refrigerating plant according to claim 2 is characterized in that: described capillary branch road flows to controller and comprises the 3rd magnetic valve that is serially connected on the first capillary branch road and the 4th magnetic valve that is serially connected on the second capillary branch road.
4. according to claim 1 or 2 or 3 described round-the-clock refrigerating plants, it is characterized in that: also comprise the liquid reservoir that is connected between compressor and the evaporimeter, the outlet of described bypass branch road connects liquid reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200855707U CN201964678U (en) | 2011-03-28 | 2011-03-28 | All-weather refrigerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200855707U CN201964678U (en) | 2011-03-28 | 2011-03-28 | All-weather refrigerating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201964678U true CN201964678U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200855707U Expired - Lifetime CN201964678U (en) | 2011-03-28 | 2011-03-28 | All-weather refrigerating device |
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| Country | Link |
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| CN (1) | CN201964678U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147163A (en) * | 2011-03-28 | 2011-08-10 | Tcl空调器(中山)有限公司 | All-weather refrigerating plant and refrigerating mode control method thereof |
| CN104930763A (en) * | 2014-03-19 | 2015-09-23 | 海尔集团公司 | Air conditioner refrigerating system |
| CN104949225A (en) * | 2015-05-22 | 2015-09-30 | 珠海格力电器股份有限公司 | Outdoor unit, air-conditioning system and low-temperature refrigeration method |
| CN108548236A (en) * | 2018-05-18 | 2018-09-18 | 广东申菱环境系统股份有限公司 | A kind of integrated energy-saving type air conditioner |
-
2011
- 2011-03-28 CN CN2011200855707U patent/CN201964678U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147163A (en) * | 2011-03-28 | 2011-08-10 | Tcl空调器(中山)有限公司 | All-weather refrigerating plant and refrigerating mode control method thereof |
| CN102147163B (en) * | 2011-03-28 | 2012-11-14 | Tcl空调器(中山)有限公司 | All-weather refrigerating plant and refrigerating mode control method thereof |
| CN104930763A (en) * | 2014-03-19 | 2015-09-23 | 海尔集团公司 | Air conditioner refrigerating system |
| CN104949225A (en) * | 2015-05-22 | 2015-09-30 | 珠海格力电器股份有限公司 | Outdoor unit, air-conditioning system and low-temperature refrigeration method |
| CN108548236A (en) * | 2018-05-18 | 2018-09-18 | 广东申菱环境系统股份有限公司 | A kind of integrated energy-saving type air conditioner |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110907 Effective date of abandoning: 20130306 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20110907 Effective date of abandoning: 20130306 |
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| RGAV | Abandon patent right to avoid regrant |