CN201166489Y - Central air conditioner system - Google Patents
Central air conditioner system Download PDFInfo
- Publication number
- CN201166489Y CN201166489Y CNU2007203120706U CN200720312070U CN201166489Y CN 201166489 Y CN201166489 Y CN 201166489Y CN U2007203120706 U CNU2007203120706 U CN U2007203120706U CN 200720312070 U CN200720312070 U CN 200720312070U CN 201166489 Y CN201166489 Y CN 201166489Y
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- evaporimeter
- valve
- central air
- cold
- evaporating pressure
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Abstract
The utility model discloses a central air-conditioning system, wherein the central air-conditioning system adopts a group of compressors and condensators to configure refrigerating systems of two or more than two evaporators with different evaporating pressure, two evaporators respectively provide cold sources to areas with different air-conditioning work condition demands, which not only can realize simultaneous operation of an evaporator group, but also can work in an mutually independent mode, and the system constant evaporating pressure is kept through a matched evaporating pressure governing valve, which prevents the condition that the evaporating pressure is too low from happening. Furthermore, the system adopts hot air by-pass defrosting measures, the energy is saved, the consumption is lowered, simultaneously, the whole system is more stable and reliable. Thereby, the central air-conditioning system has the flexibility that a machine has multiple uses, the device investment is lowered, simultaneously, and the central air-conditioning system is more beneficial for locale monitoring and maintenance of a set. A part of condensation heat of the refrigerating systems is used to remove frost, the energy consumption is lowered, the structure is simple, and the use is convenient.
Description
Technical field
The utility model relates to a kind of central air conditioner system, relates in particular to its inner refrigeration system.
Background technology
In common refrigeration system is used, when the required cooling condition of air conditioner surroundings exists than large deviation, for example the Office Area requires to require 15 ℃ of room temperatures between 27 ℃ of room temperatures, production technology, can only dispose separate refrigeration system and device this moment, so, bringing difficulty aspect investment of equipment, engineering-built expense, cluster management and the regular maintenance.
The utility model content
The technical problems to be solved in the utility model provides a kind of central air conditioner system, can be respectively different operating modes zone low-temperature receiver is provided simultaneously.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: this central air conditioner system comprises compressor and condenser, controller, expansion valve and evaporimeter, described central air conditioner system comprises at least one liquid coolant evaporation pipeline and at least one air-cooled evaporation pipeline, described liquid coolant evaporation pipeline comprises electromagnetic valve I, expansion valve I and evaporimeter I, described electromagnetic valve I one end is connected with one of them output of three-way control valve, the described electromagnetic valve I other end is connected with expansion valve I one end, the cold-producing medium input of described evaporimeter I is connected with the expansion valve I other end, the cold-producing medium output of described evaporimeter I is connected with compressor, described evaporimeter I is provided with temperature sensor I, described air-cooled evaporation pipeline comprises electromagnetic valve II, expansion valve II, evaporimeter II and evaporating pressure regulating valve, described electromagnetic valve II one end is connected with another output of three-way control valve, the described electromagnetic valve II other end is connected with expansion valve II one end, the cold-producing medium input of described evaporimeter II is connected with the expansion valve II other end, the cold-producing medium output of described evaporimeter II is connected with evaporating pressure regulating valve one end, the described evaporating pressure regulating valve other end is connected with compressor, described evaporimeter II is provided with temperature sensor II, the input of described three-way control valve is connected with the cold-producing medium output of condenser, and described temperature sensor I is connected with controller with temperature sensor II.
As of the present utility model a kind of preferred, described evaporimeter I is a shell and tube evaporator, and described evaporimeter II is air-cooled evaporimeter.
As a kind of improvement of the present utility model, also be connected with device for drying and filtering and visor between described three-way control valve and the condenser.
As another kind of improvement the of the present utility model, the cold-producing medium input of described evaporimeter II also is connected with the output of compressor by electromagnetic valve II I.
The utility model adopts technique scheme, central air conditioner system adopts the refrigeration system of one group of compressor two or more evaporimeters different with the condenser arrangement evaporating pressure, two evaporimeters provide low-temperature receiver to the zone that different air conditioning conditions require respectively, operation when both can realize evaporator bank, and the work that can be mutually independent, keep the constant evaporating pressure of system by supporting evaporating pressure regulating valve, the generation of the hypotony that avoids evaporating situation.System takes hot-gas bypass defrosting measure in addition, makes whole system more reliable and more stable in the time of energy-saving and cost-reducing.Therefore the utlity model has the flexibility of a tractor serves several purposes, when reducing equipment investment, the on-site supervision that helps unit is more safeguarded.The partial condensation heat of refrigeration system is used as defrosting, has reduced the consumption of the energy, and simple in structure, easy to use.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is the structure principle chart of a kind of central air conditioner system of the utility model;
Fig. 2 is the defrosting control principle figure of a kind of central air conditioner system of the utility model.
The specific embodiment
As shown in Figure 1, central air conditioner system inside has comprised compressor 2, condenser 3, controller 1.The adjustable power of compressor 2, it is connected with the cold-producing medium input of condenser 3 by carrier pipe, and the cold-producing medium after the compression is sent into condenser 3 coolings.Central air conditioner system comprises a liquid coolant evaporation pipeline and an air-cooled evaporation pipeline.Liquid coolant evaporation pipeline comprises electromagnetic valve I 4, expansion valve I 5 and evaporimeter I 6, evaporimeter I 6 is a shell and tube evaporator, these electromagnetic valve I 4 one ends are connected with expansion valve I 5 one ends, the cold-producing medium input of evaporimeter I 6 is connected with expansion valve I 5 other ends, and the cold-producing medium output of evaporimeter I 6 is connected with compressor 2; Air-cooled evaporation pipeline comprises electromagnetic valve II 7, expansion valve II 8, evaporimeter II 9 and evaporating pressure regulating valve 10, evaporimeter II 9 is air-cooled evaporimeter, electromagnetic valve II 7 one ends are connected with expansion valve II 8 one ends, the cold-producing medium input of evaporimeter II 9 is connected with expansion valve II 8 other ends, the cold-producing medium output of evaporimeter II 9 is connected with evaporating pressure regulating valve 10 1 ends, and evaporating pressure regulating valve 10 other ends are connected with compressor 2.Electromagnetic valve I 4 other ends are connected with one of them output of three-way control valve 16, electromagnetic valve II 7 other ends are connected with another output of three-way control valve 16, and the input of three-way control valve 16 is connected with the cold-producing medium output of condenser 3 with visor 15 by device for drying and filtering 14.Be provided with temperature sensor I 11 on evaporimeter I 6, evaporimeter II 9 is provided with temperature sensor II 12, and temperature sensor I 11 is connected with controller 1 with temperature sensor II 12.The cold-producing medium input of evaporimeter II 9 also is connected with the output of compressor 2 by electromagnetic valve II I13, forms by-pass structure.
Work as A, when B two districts need unit to provide low-temperature receiver simultaneously, compressor 2 starts operation at full capacity, electromagnetic valve II I13 is in closed condition, flow through through condenser 3 condensed refrigerant liquid and to enter three-way control valve 16 by visor 15 again after device for drying and filtering 14 dry the processing and distribute to liquid coolant evaporation pipeline and air-cooled evaporation pipeline, controller 1 is by the detection of temperature sensor I 11 and temperature sensor II 12, compare A, the difference of B two district's cooling loads, automatically regulate the size of three-way control valve 16 open degree, thereby realize being dispensed to refrigerant flow and the A of evaporimeter I 6 and evaporimeter II 9, the load setting of B two sound zone systems adapts.Cold-producing medium enters expansion valve I 5 and expansion valve II 8 throttling step-downs from the electromagnetic valve I 4 and the electromagnetic valve II 7 of having opened, utilize pressure fan that cold is transported to low temperature process air conditioning area B district at evaporimeter II 9, utilize chilled water that cold is transported to A district, comfort air conditioning system zone at evaporimeter I 6.Have deviation at evaporimeter I 6, evaporimeter II 9 evaporating pressures, system makes evaporimeter I 6 constant with the evaporating pressure of evaporimeter II 9 by evaporating pressure regulating valve 10.
When the A district does not need unit to provide low-temperature receiver, B district still to need unit that low-temperature receiver is provided, electromagnetic valve I 4 is closed, compressor 2 moves at part load condition, through the condenser 3 condensed refrigerant liquid three-way control valve 16 of flowing through, detection by temperature sensor II 12, the difference of B district cooling load relatively regulates and distributes to the refrigerant flow of evaporimeter II 9 and the load setting of B sound zone system and adapts.Cold-producing medium enters expansion valve II 8 throttling step-downs by the electromagnetic valve II 7 of having opened, and utilizes pressure fan that cold is transported to low temperature process air conditioning area B district at evaporimeter II 9.
When the A district needs unit to provide low-temperature receiver, B district not to need unit that low-temperature receiver is provided, electromagnetic valve II 7 is closed, compressor 2 moves at part load condition, through the condenser 3 condensed refrigerant liquid three-way control valve 16 of flowing through, detection by temperature sensor I 11, the difference of A district cooling load relatively regulates and distributes to the refrigerant flow of evaporimeter I 6 and the load setting of A sound zone system and adapts.Cold-producing medium enters expansion valve I 5 throttling step-downs by the electromagnetic valve I 4 of having opened, and utilizes chilled water that cold is transported to A district, comfort air conditioning system zone at evaporimeter I 6.
Utilize the by-pass structure central air conditioner system of electromagnetic valve II I13 can finish defrosting automatically.The unit start, temperature sensor II 12 detects the evaporating temperature of evaporimeter II 9, the time relay record unit continuous operating time in the controller 1.When evaporating temperature enters temperature conditions TC less than defrosting, and continuous operating time is greater than defrosting entry time condition HA, and electromagnetic valve II I13 opens.The vapours that compressor 2 is discharged enters evaporimeter II 9, and the evaporating temperature of evaporimeter II 9 raises at this moment, and frost constantly melts.When evaporimeter II9 evaporating temperature greater than defrosting end temp condition TD, the duration of perhaps defrosting, electromagnetic valve II I13 closed greater than defrosting concluding time condition HB.Finish defrosting, enter next defrosting cycle.Heat in the defrost process comes from the vapours that refrigeration system compressor 2 is discharged.Owing to used partial condensation heat in the defrost process, reduced the condensation heat load of condenser 3.When improving the refrigeration system Energy Efficiency Ratio, defrosting no longer needs other energy.Pass through the outlet pressure of evaporating pressure regulating valve 10 constant evaporimeters in the defrost process.In above-mentioned defrosting operating condition, the work of evaporimeter I 6 is unaffected, if when unit does not provide low-temperature receiver in the A district, electromagnetic valve I 4 is closed, and the hypotony that avoids evaporating causes evaporimeter I 6 that bursting by freezing take place.Otherwise if the A district needs unit that low-temperature receiver is provided, electromagnetic valve I 4 is opened, and the evaporation of absorb heat among evaporimeter I 6 of part cold-producing medium, the control of refrigerant flow at this moment also are that the acting in conjunction by temperature sensor II 12 and three-way control valve 16 realizes.
If more than two of working region, can require corresponding increase to be fit to the evaporation pipeline of this requirement so according to the air conditioning condition of working region, be that corresponding low temperature process air conditioning area then increases air-cooled evaporation pipeline, corresponding comfort air conditioning system zone then increases liquid coolant evaporation pipeline.Therefore the utility model has satisfied the requirement of a tractor serves several purposes in difference zone.
Claims (4)
1, a kind of central air conditioner system, this central air conditioner system comprises compressor (2) and condenser (3), controller (1), expansion valve and evaporimeter, it is characterized in that: described central air conditioner system comprises at least one liquid coolant evaporation pipeline and at least one air-cooled evaporation pipeline, described liquid coolant evaporation pipeline comprises electromagnetic valve I (4), expansion valve I (5) and evaporimeter I (6), described electromagnetic valve I (4) one ends are connected with one of them output of three-way control valve (16), described electromagnetic valve I (4) other end is connected with expansion valve I (5) one ends, the cold-producing medium input of described evaporimeter I (6) is connected with expansion valve I (5) other end, the cold-producing medium output of described evaporimeter I (6) is connected with compressor (2), described evaporimeter I (6) is provided with temperature sensor I (11), described air-cooled evaporation pipeline comprises electromagnetic valve II (7), expansion valve II (8), evaporimeter II (9) and evaporating pressure regulating valve (10), described electromagnetic valve II (7) one ends are connected with another output of three-way control valve (16), described electromagnetic valve II (7) other end is connected with expansion valve II (8) one ends, the cold-producing medium input of described evaporimeter II (9) is connected with expansion valve II (8) other end, the cold-producing medium output of described evaporimeter II (9) is connected with evaporating pressure regulating valve (10) one ends, described evaporating pressure regulating valve (10) other end is connected with compressor (2), described evaporimeter II (9) is provided with temperature sensor II (12), the input of described three-way control valve (16) is connected with the cold-producing medium output of condenser (3), and described temperature sensor I (11) is connected with controller (1) with temperature sensor II (12).
2, according to the described refrigeration system of claim 1, it is characterized in that: described evaporimeter I (6) is a shell and tube evaporator, and described evaporimeter II (9) is air-cooled evaporimeter.
3, according to the described refrigeration system of claim 1, it is characterized in that: also be connected with device for drying and filtering (14) and visor (15) between described three-way control valve (16) and the condenser (3).
4, according to the described refrigeration system of claim 1, it is characterized in that: the cold-producing medium input of described evaporimeter II (9) also is connected with the output of compressor (2) by electromagnetic valve II I (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203120706U CN201166489Y (en) | 2007-12-19 | 2007-12-19 | Central air conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007203120706U CN201166489Y (en) | 2007-12-19 | 2007-12-19 | Central air conditioner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201166489Y true CN201166489Y (en) | 2008-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007203120706U Expired - Fee Related CN201166489Y (en) | 2007-12-19 | 2007-12-19 | Central air conditioner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201166489Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032656A (en) * | 2009-09-25 | 2011-04-27 | 株式会社京浜 | Vehicular air conditioning apparatus |
| CN102439382A (en) * | 2009-06-05 | 2012-05-02 | 大金工业株式会社 | Refrigeration device for trailer |
-
2007
- 2007-12-19 CN CNU2007203120706U patent/CN201166489Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102439382A (en) * | 2009-06-05 | 2012-05-02 | 大金工业株式会社 | Refrigeration device for trailer |
| CN102439382B (en) * | 2009-06-05 | 2014-06-18 | 大金工业株式会社 | Refrigeration device for trailer |
| CN102032656A (en) * | 2009-09-25 | 2011-04-27 | 株式会社京浜 | Vehicular air conditioning apparatus |
| CN102032656B (en) * | 2009-09-25 | 2014-10-15 | 株式会社京浜 | Vehicular air conditioning apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG DUNAN MECHANICAL + ELECTRICAL SCIENCE CO. Free format text: FORMER OWNER: DUNAN ARTIFICIAL ENVIRONMENTAL APPARATUS CO., LTD., ZHEJIANG PROV. Effective date: 20090508 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090508 Address after: Zhuji City, Zhejiang province shop Town Industrial Zone, zip code: 311835 Patentee after: Zhejiang Dunan Electromechanical Technology Co.,Ltd. Address before: Zhejiang City, Zhejiang Province town of Zhuji industrial security zone environmental protection equipment Limited by Share Ltd, zip code: 311835 Patentee before: Zhejiang Dun'an Artificial Environment Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20141219 |
|
| EXPY | Termination of patent right or utility model |