CN100520224C - Composite refrigeration system - Google Patents
Composite refrigeration system Download PDFInfo
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- CN100520224C CN100520224C CNB2006100216586A CN200610021658A CN100520224C CN 100520224 C CN100520224 C CN 100520224C CN B2006100216586 A CNB2006100216586 A CN B2006100216586A CN 200610021658 A CN200610021658 A CN 200610021658A CN 100520224 C CN100520224 C CN 100520224C
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- refrigerating plant
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- condenser
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Abstract
A composite refrigeration system is featured as setting air-conditioning evaporator in indoor machine; setting compressor forming circulation loop with said evaporator and condenser as well as air-conditioning throttle unit in outdoor machine; forming refrigeration unit by evaporator and throttle unit; connecting throttle unit and evaporator of refrigeration unit to form refrigeration subunit; connecting said subunit with air-conditioning circulation loop in parallel way to make compressor, condenser, evaporator and throttle of refrigeration unit form a refrigerating circulation loop.
Description
Technical field
The present invention relates to refrigeration system, particularly the composite refrigeration system of split-type air conditioner and other Small Refrigerating Equipments.
Background technology
Existing vapor compression type refrigerating system comprises compressor, condenser, throttling arrangement, 4 parts of evaporimeter at least, be connected to form closed system by pipeline, refrigeration working medium is that cold-producing medium becomes high temperature high pressure liquid by compressor compresses and carries out heat exchange at condenser to heat transfer medium such as air etc. in closed system, the gas-liquid mixture that becomes low-temp low-pressure through throttling arrangement expansion step-down enters heat transfer mediums such as evaporimeter and air and carries out heat exchange, sucked compressor by compressor at last and compress again, finish kind of refrigeration cycle.Air-conditioning and refrigerator small-sized refrigerators such as (cabinets) all adopts vapor compression type refrigerating system, but uses different cold-producing mediums.
Domestic air conditioning uses the R22 cold-producing medium at present, and mainly based on split type, compressor, condenser are positioned at off-premises station, evaporimeter is positioned at indoor set, and throttling arrangement generally is positioned at off-premises station, by long chi pipe arrangement indoor set and off-premises station is linked together.The air-conditioning system refrigerating capacity is big, and refrigerant charge is big, and several hectograms do not wait to several kilograms, generally at least several kilowatts/hours of refrigerating capacitys, the R22 refrigerating effect per unit swept volume is big, thereby domestic air conditioning selects for use R22 as cold-producing medium, can significantly reduce compressor displacement, but R22 operating pressure height.Domestic air conditioning adopts copper tube aluminum formula heat exchanger to carry out air-cooled forced convection, good effect of heat exchange, and evaporating temperature is generally greater than 0 ℃ during refrigeration, and the off-premises station evaporating temperature can be in zubzero temperature work when heating.
And other Small Refrigerating Equipments such as refrigerator (cabinet), refrigerating box (cabinet), ice machine, refrigerating are showed case (cabinet) etc., at present with R134a or R600a cold-producing medium as small-type refrigeration appliance, compressor, condenser, throttling arrangement, evaporimeter all are positioned at case (cabinet) body, constitute the monoblock type refrigeration system, refrigerator (cabinet) refrigerating capacity is little, be generally less than 300 watts/hour, the cold-producing medium operating pressure is low than R22.Refrigerator divides refrigeration, freeze space, and condenser adopts Bandaid pipe (steel pipe) to bear behind the casing or behind the interior plant casing steel plate, generally adopts heat transfer free convection, the heat exchange weak effect.
At present, domestic air conditioning, Small Refrigerating Equipment are two kinds of independently refrigeration systems, and acquisition cost is higher, and exist the refrigeration system service efficiency to hang down relative less shortcoming with the refrigerator inside dischargeable capacity.
Summary of the invention
Technical problem to be solved by this invention provides a kind of combined refrigeration system of regulating interior space temperature function and other refrigerating functions that has simultaneously, and this combined refrigeration system can accurately be controlled the temperature in the refrigerating plant.
The technical solution adopted for the present invention to solve the technical problems is: composite refrigeration system of the present invention, comprise by indoor set, detachable air conditioner and at least one refrigerating plant that off-premises station constitutes, be provided with A/C evaporator in the described indoor set, be provided with the compressor that constitutes the air-conditioning closed circuit with A/C evaporator jointly in the described off-premises station, condenser and air-conditioning throttling arrangement, described refrigerating cabinet has refrigerating plant evaporimeter and refrigerating plant throttling arrangement, described refrigerating plant evaporimeter, the refrigerating plant throttling arrangement is connected to form the refrigerating plant branch road, this refrigerating plant branch road is in parallel with the air-conditioning closed circuit, makes compressor, condenser and refrigerating plant evaporimeter, the refrigerating plant throttling arrangement constitutes the refrigerating plant closed circuit; On the described air-conditioning closed circuit, between compressor, condenser, be provided with solenoid operated four-way valve; Between condenser and air-conditioning throttling arrangement, be provided with control valve; Between air-conditioning throttling arrangement and A/C evaporator, be provided with stop valve; Between A/C evaporator and compressor, be provided with stop valve; One end of described refrigerating plant branch road joins with the air-conditioning closed circuit between condenser and control valve, and the other end then is connected on the solenoid operated four-way valve; On the described refrigerating plant branch road, between condenser and refrigerating plant throttling arrangement, be provided with stop valve and control valve, between on refrigerating plant evaporimeter and the solenoid operated four-way valve, be provided with stop valve and control valve.
The invention has the beneficial effects as follows: split-type air conditioner and other Small Refrigerating Equipments are organically blended, significantly reduce the deployment cost of Small Refrigerating Equipment such as refrigerator (cabinet), refrigerating box (cabinet), ice machine, refrigerating displaying case (cabinet) etc., can also improve the performance and the whole refrigeration system utilization rate of Small Refrigerating Equipment and air-conditioning simultaneously greatly.
Description of drawings
This specification comprises as next width of cloth accompanying drawing:
Fig. 1 is the systematic schematic diagram of composite refrigeration system of the present invention.
Parts among the figure, toponym and pairing mark: pipe joint 1a, pipe joint 1b, pipe joint 1c, pipe joint 1d, stop valve 2a, stop valve 2b, stop valve 2c, stop valve 2d, control valve 3a, control valve 3b, control valve 3c, indoor set 10, A/C evaporator 11, off-premises station 20, compressor 21, condenser 22, air-conditioning throttling arrangement 23, solenoid operated four-way valve 24, air-conditioning closed circuit 25, refrigerating plant 30, refrigerating plant evaporimeter 31, refrigerating plant throttling arrangement 32, refrigerating plant branch road 33.Indicate the refrigeration flow direction with filled arrows among the figure, heat flow direction and indicate with the hollow arrow mark.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Air-conditioning and the two refrigeration system of other Small Refrigerating Equipments have many differences, and purposes is also different, thereby never considers in the prior art to constitute compound refrigeration system with the two system in combination together.From table 1 basic physical properties table as can be seen R22 refrigerant temperature interval be the refrigeration requirement that can satisfy Small Refrigerating Equipment.
Table 1 basic physical properties table
| Cold-producing medium | R22 | R134a |
| Boiling point (latm) ℃ | -40.818 | -26.18 |
| Freezing point (latm) ℃ | -160 | -101.15 |
| Critical-temperature ℃ | 96.15 | 101.15 |
| Purposes | Domestic air conditioning | Small-sized refrigerator, air conditioning for automobiles |
Fig. 1 is the systematic schematic diagram of composite refrigeration system of the present invention.With reference to this figure, composite refrigeration system of the present invention comprises detachable air conditioner and at least one refrigerating plant 30 of being made of indoor set 10, off-premises station 20.Be provided with A/C evaporator 11 in the described indoor set 10, be provided with in the described off-premises station 20 and A/C evaporator 11 common compressor 21, condenser 22 and the air-conditioning throttling arrangements 23 that constitute air-conditioning closed circuit 25.Described refrigerating plant 30 has refrigerating plant evaporimeter 31 and refrigerating plant throttling arrangement 32.Described refrigerating plant evaporimeter 31, refrigerating plant throttling arrangement 32 are connected to form refrigerating plant branch road 33, this refrigerating plant branch road 33 is in parallel with air-conditioning closed circuit 25, makes compressor 21, condenser 22 constitute the refrigerating plant closed circuit with refrigerating plant evaporimeter 31, refrigerating plant throttling arrangement 32.It is piston compressor, rotor-type compressor or scroll compressor that described compressor 21 can adopt, and comprises the compressor of constant speed and frequency conversion (transfiguration is long-pending) form.Described air-conditioning throttling arrangement 23, refrigerating plant throttling arrangement 32 can adopt capillary, throttle pipe or electric expansion valve.Cold-producing medium can be present general R22, also can be the HFCs class as: R410a also can be natural refrigerant class such as carbon dioxide etc.
Fig. 1 shows a specific embodiment of composite refrigeration system of the present invention simultaneously, only is provided with a refrigerating plant among this embodiment.With reference to Fig. 1, on the described air-conditioning closed circuit 25: between compressor 21, condenser 22, be provided with solenoid operated four-way valve 24; Between condenser 22 and air-conditioning throttling arrangement 23, be provided with control valve 3a; Between air-conditioning throttling arrangement 23 and A/C evaporator 11, be provided with stop valve 2a; Between A/C evaporator 11 and compressor 21, be provided with stop valve 2c.One end of described refrigerating plant branch road 33 joins with air-conditioning closed circuit 25 between condenser 22 and control valve 3a, and the other end then is connected on the solenoid operated four-way valve 24.On the described refrigerating plant 33, be provided with stop valve 2b and control valve 3b, between refrigerating plant evaporimeter 31 and solenoid operated four-way valve 24, be provided with stop valve 2d and control valve 3c at condenser 22 and refrigerating plant throttling arrangement 32.Described control valve 3a, 3b, 3c can adopt magnetic valve or electric expansion valve.With reference to Fig. 1, should constitute by two parts pipeline by air-conditioning closed circuit 25 for ease of installing, usually pipe joint 1a, 1b can be set on the two ends of indoor set 10 parts respectively, same refrigerating plant branch road 33 is provided with pipe joint 1c, 1d respectively at the two ends of the pipeline that is positioned at refrigerating plant 30 parts.
In composite refrigeration system of the present invention, the process of refrigerastion of refrigerating plant is as follows:
When 1, air conditioner refrigerating moved, control valve 3a opened.When refrigerating plant need freeze, control valve 3b, 3c opened, and cold-producing medium flows into refrigerating plant, closed control valve 3b, 3c when reaching design temperature.After control valve 3b, 3c close, keep low-temperature refrigerant in the refrigerating plant, can not cause general refrigerating plant because of the high-low pressure dynamic balance, high-temperature high-pressure refrigerant flows into situation in the cryogenic refrigerating unit, influence the refrigerating plant internal temperature, play insulation effect, obviously press actual needs, or just can accurately control temperature in the refrigerating plant with certain frequency open and close control valve 3b, 3c by open and close control valve 3b, 3c.
2, during the air-conditioning heating operation, control valve 3a opens. Control valve 3b, 3c open, and cold-producing medium flows into refrigerating plant, closed control valve 3b, 3c when reaching design temperature.Behind closed control valve 3b, the 3c, keep low-temperature refrigerant in the refrigerating plant, can not cause general refrigerating plant because of the high-low pressure dynamic balance, high-temperature high-pressure refrigerant flows into situation in the refrigerating plant, obviously just can accurately control temperature in the refrigerating plant by actual needs by open and close control valve 3b, 3c.Because winter, outdoor temperature was lower than indoorly, obviously can play energy-conservation and raising air-conditioning heating capacity double effects by evaporation load diffluence room outside to refrigerating plant.
3, when air-conditioning does not use, control valve 3a closes, when refrigerating plant need freeze, compressor 21 starts, and solenoid control valve 3b, 3c open, and cold-producing medium flows into refrigerating plant and freezes, when reaching design temperature, close compressor 21 and solenoid control valve 3b, 3c.This moment, condenser 22 had the cold-producing medium of certain pressure, because control valve 3a closes, can not form the high-low pressure dynamic balance, when refrigerating plant needs refrigeration, carry out solenoid control valve 3b, 3c opening and closing, utilize that cold-producing medium freezes to refrigerating plant in the condenser 22, up to condenser and vaporizer side height pressure near balance, can't satisfy the requirement of refrigerating plant refrigeration, start compressor 21 once more and freeze.If use DC frequency-changeable compressor will improve air-conditioning and refrigerating plant energy-saving effect greatly.
Composite refrigeration system of the present invention organically combines family expenses SPLIT AIR-CONDITIONING SYSTEM and refrigerator Small Refrigerating Equipments such as (cabinets), make shared compressors such as refrigerating plant and condenser finish combined type refrigerant, refrigerator forms such as (cabinets) will be become split type by former monoblock type.Be not only to reduce compressor and condenser for Small Refrigerating Equipment, reduce cost, and have the following advantages: enlarge the inner dischargeable capacity of refrigerating plant; Heat generating components compressor and condenser are placed the outside, and minimizing may produce refrigeration machines such as refrigerators leaks heat, and reduces room temperature influence; Compressor accounts for principal element in the noise of refrigerating plant, and compressor is shared and place the outdoor refrigerating plant noise that makes further to reduce; Adopt the air-conditioning pipe type heat exchanger, will improve the refrigerating plant efficiency greatly with air-cooled forced convertion; Can reach real-time control refrigerating plant temperature by the magnetic valve switching, than refrigerating plant was by the temperature control method ratio of start-stop compressor in the past, obviously magnetic valve has better control accuracy.
Above some principles of the described composite refrigeration system of the present invention that just explains through diagrams, therefore this specification be not be composite refrigeration system of the present invention to be confined to shown in and in the described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized, the claim that all belongs to the present invention and applied for.
Claims (3)
1, composite refrigeration system, comprise by indoor set (10), detachable air conditioner and at least one refrigerating plant (30) that off-premises station (20) constitutes, be provided with A/C evaporator (11) in the described indoor set (10), be provided with the compressor (21) that constitutes air-conditioning closed circuit (25) with A/C evaporator (11) jointly in the described off-premises station (20), condenser (22) and air-conditioning throttling arrangement (23), described refrigerating plant (30) has refrigerating plant evaporimeter (31) and refrigerating plant throttling arrangement (32), it is characterized in that: described refrigerating plant evaporimeter (31), refrigerating plant throttling arrangement (32) is connected to form refrigerating plant branch road (33), this refrigerating plant branch road (33) is in parallel with air-conditioning closed circuit (25), makes compressor (21), condenser (22) and refrigerating plant evaporimeter (31), refrigerating plant throttling arrangement (32) constitutes the refrigerating plant closed circuit; On the described air-conditioning closed circuit (25), between compressor (21), condenser (22), be provided with solenoid operated four-way valve (24); Between condenser (22) and air-conditioning throttling arrangement (23), be provided with control valve (3a); Between air-conditioning throttling arrangement (23) and A/C evaporator (11), be provided with stop valve (2a); Between A/C evaporator (11) and compressor (21), be provided with stop valve (2c); One end of described refrigerating plant branch road (33) joins with air-conditioning closed circuit (25) between condenser (22) and control valve (3a), and the other end then is connected on the solenoid operated four-way valve (24); On the described refrigerating plant branch road (33), between condenser (22) and refrigerating plant throttling arrangement (32), be provided with stop valve (2b) and control valve (3b), between on refrigerating plant evaporimeter (31) and the solenoid operated four-way valve (24), be provided with stop valve (2d) and control valve (3c).
2, composite refrigeration system as claimed in claim 1 is characterized in that: what described control valve (3a, 3b, 3c) adopted is magnetic valve or electric expansion valve.
3, composite refrigeration system as claimed in claim 1 is characterized in that: what described air-conditioning throttling arrangement (23), refrigerating plant throttling arrangement (32) adopted is capillary, throttle pipe or electric expansion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100216586A CN100520224C (en) | 2006-08-28 | 2006-08-28 | Composite refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100216586A CN100520224C (en) | 2006-08-28 | 2006-08-28 | Composite refrigeration system |
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| Publication Number | Publication Date |
|---|---|
| CN1916529A CN1916529A (en) | 2007-02-21 |
| CN100520224C true CN100520224C (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100216586A Expired - Fee Related CN100520224C (en) | 2006-08-28 | 2006-08-28 | Composite refrigeration system |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207432A (en) * | 2011-03-24 | 2011-10-05 | 海尔集团公司 | Test tool for air conditioner indoor unit and method for online test and refrigerant recovery |
| TWI460385B (en) * | 2012-05-30 | 2014-11-11 | Ind Tech Res Inst | Hybird refrigeration system and control method thereof |
| CN109520162A (en) * | 2018-11-27 | 2019-03-26 | 上海盈达空调设备股份有限公司 | Frequency conversion host coolant system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483969A (en) * | 2003-04-09 | 2004-03-24 | 山东贝莱特空调有限公司 | One-driving-mrltiple frequency-change central air conditioner |
| CN1517607A (en) * | 2003-01-13 | 2004-08-04 | Lg������ʽ���� | Duplex air governor |
| CN1517612A (en) * | 2003-01-16 | 2004-08-04 | Lg������ʽ���� | Duplex air governor with multiple cut-off distributors |
| CN1782622A (en) * | 2004-11-29 | 2006-06-07 | 乐金电子(天津)电器有限公司 | One dragging more air conditioner |
-
2006
- 2006-08-28 CN CNB2006100216586A patent/CN100520224C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1517607A (en) * | 2003-01-13 | 2004-08-04 | Lg������ʽ���� | Duplex air governor |
| CN1517612A (en) * | 2003-01-16 | 2004-08-04 | Lg������ʽ���� | Duplex air governor with multiple cut-off distributors |
| CN1483969A (en) * | 2003-04-09 | 2004-03-24 | 山东贝莱特空调有限公司 | One-driving-mrltiple frequency-change central air conditioner |
| CN1782622A (en) * | 2004-11-29 | 2006-06-07 | 乐金电子(天津)电器有限公司 | One dragging more air conditioner |
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| Publication number | Publication date |
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| CN1916529A (en) | 2007-02-21 |
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Owner name: SICHUAN CHANGHONG ELECTRIC CO.,LTD. Free format text: FORMER OWNER: SICHUAN CHANGHONG ELECTRIC APPLIANCE CO., LTD. Effective date: 20090710 |
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Effective date of registration: 20090710 Address after: No. 35 Mian Xing Road, hi tech Development Zone, Sichuan, Mianyang Patentee after: Sichuan Changhong Air-Coditioning Co., Ltd. Address before: No. 35, Mian Xing East Road, hi tech Zone, Sichuan, Mianyang Patentee before: Sichuan Changhong Electrical Appliance Co., Ltd. |
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Granted publication date: 20090729 Termination date: 20130828 |