CN101236033B - Absorption type air conditioner cold water main unit and its tube antifreezing method - Google Patents
Absorption type air conditioner cold water main unit and its tube antifreezing method Download PDFInfo
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- CN101236033B CN101236033B CN2008100258107A CN200810025810A CN101236033B CN 101236033 B CN101236033 B CN 101236033B CN 2008100258107 A CN2008100258107 A CN 2008100258107A CN 200810025810 A CN200810025810 A CN 200810025810A CN 101236033 B CN101236033 B CN 101236033B
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- magnetic valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
The invention relates to an absorption air conditioner cooling water main frame and a method of anti-freezing pipe thereof. The absorption air conditioner cooling water main frame comprises a high-voltage generator (1), a condenser (2), a low-voltage generator (3), an absorber (3), an evaporator (5), a high-temperature heat exchanger (6), a low-temperature heat exchanger (7), a solution pump (8), a cryogenic fluid pump (9), a heat input device (10), a water pump of chilled water (15), a chilled water flow capacity protecting sensor (16) and a main frame central process unit (17), a connecting pipe between the condenser and the evaporator is provided with a solenoid valve, pipeline connecting an chilled water inlet port of the evaporator with the water pump of chilled water is equipped with a solenoid valve. When power source is cut off or accidents that a chilled water recycling pump stops from working and the like or faulty operation occurs, a condenser liquid coolant by-pass solenoid valve is opened, or a chilled water drainage solenoid valve is opened, thereby avoiding evaporator freezing pipe of the absorption air conditioner cooling water main frame from accidents. The absorption air conditioner cooling water main frame is reasonably designed, and the method of anti-freezing pipe thereof is simple in operation, convenient and practical.
Description
Technical field:
The present invention is the method for a kind of absorption type air conditioner cold water main unit and anti-frozen pipe thereof, relates in particular to a kind of dynamic ice cold-storage method and equipment, belongs to the renovation technique of the method for absorption type air conditioner cold water main unit and anti-frozen pipe thereof.
Background technology:
Air conditioner cold water main unit is by evaporimeter chilled water to be reduced temperature to setting value, cryogenic freezing water is transported to user's air-conditioner host again, if chilled water temperature is lower than 0 ℃ in the evaporimeter, chilled water will freeze, volumetric expansion damages evaporimeter, and main frame will be scrapped when serious.Two necessary conditions one that cause frozen pipe are that temperature is lower than 0 ℃ in the evaporimeter, the 2nd, and chilled-water flow is less than certain value.Air conditioner cold water main unit will avoid occurring the frozen pipe phenomenon, just must guarantee that above-mentioned two conditions do not occur simultaneously.
Absorption cold water main frame, include condenser, evaporimeter, absorber, generator and connecting pipe and equipment, wherein generator is separated refrigerant vapour from absorbent and refrigerant mixture, refrigerant vapour becomes liquid state by water quench in condenser, the heat of chilled water is taken away in liquid refrigerant flash distillation in evaporimeter, the gaseous refrigerant that flash distillation is come out is absorbed in absorber, keeps evaporimeter and continues operate as normal.There are two aspects in the source of the liquid refrigerant on the evaporimeter heat exchange coil: a part is come flash-pot cryogen dish, another part is from condenser, two parts liquid refrigerant is transported to evaporimeter heat exchange coil top through piping, be arranged on the heat exchange coil surface by the gravity effect, part flashes to gaseous state and is absorbed, falling on the evaporimeter cryogen dish of evaporation do not continued circulation by cryogenic fluid pump.
When take place having a power failure or chilled water circulating pump catastrophic failure when stopping; the original defence program of air-conditioner host will stop cryogenic fluid pump and cooling water circulating pump; but from the liquid refrigerant of condenser (since fault when occurring main frame also in operate as normal; quantity is more) still continue transported on the evaporimeter heat exchange coil this moment; because chilled water does not have to flow substantially; cause chilled water temperature sharply to reduce, the frozen pipe accident just may occur.
Summary of the invention:
The objective of the invention is to consider the problems referred to above and a kind of absorption type air conditioner cold water main unit that absorption cold water main frame evaporimeter frozen pipe accident takes place of stopping is provided.
Another object of the present invention is to provide the antifreeze tube side method of absorption type air conditioner cold water main unit a kind of simple to operate, convenient and practical.
Technical scheme of the present invention is: absorption type air conditioner cold water main unit of the present invention; include high pressure generator; condenser; low pressure generator; absorber; evaporimeter; high-temperature heat exchanger; low temperature heat exchanger; solution pump; cryogenic fluid pump; the heat input unit; the chilled water water pump; chilled-water flow protection sensor; the main frame central controller; wherein high pressure generator passes through low pressure generator; condenser is connected with evaporimeter; the cryogen inlet of evaporimeter is connected with cryogenic fluid pump; the chilled water inlet of evaporimeter is connected with the chilled water input interface by the chilled water water pump; the chilled water outlet of evaporimeter is connected with the chilled water output interface by chilled-water flow protection sensor; the solution inlet of absorber is connected with solution pump; and absorber is provided with cooling water input interface and cooling water output interface; high pressure generator is connected with absorber by high-temperature heat exchanger and low temperature heat exchanger; wherein directly be connected by pipeline between the heat exchange coil of condenser and evaporimeter; be equiped with second magnetic valve on condenser and the pipeline that the cryogen dish of evaporimeter is connected; be equiped with first magnetic valve on the chilled water inlet of evaporimeter and the pipeline that the chilled water water pump is connected, and first magnetic valve; second magnetic valve and chilled-water flow protection sensor are connected with the main frame central controller.
Also be equiped with when the cold water main unit operate as normal on the chilled water inlet of above-mentioned evaporimeter and the pipeline that the chilled water water pump is connected and open, need the overhaul reserve hand-operated valve of manual-lock before shutting down.
Above-mentioned high pressure generator is connected with the heat input unit.
Above-mentioned first magnetic valve and second magnetic valve are to open immediately when outage or input signal, and the normal closed gate of time-delay closing.
The antifreeze tube side method of absorption type air conditioner cold water main unit of the present invention, it includes following process:
1) when the cold water main unit operate as normal, first magnetic valve and second magnetic valve have guaranteed the stable and efficient operation of system;
2) when unexpected situation or maloperation take place, the chilled water flow velocity is low excessively, and chilled-water flow protection sensor passes the signal along to the main frame central controller, main frame central controller output signal, control chilled water water pump and cryogenic fluid pump quit work, and open first magnetic valve and second magnetic valve simultaneously; After wherein second magnetic valve is opened, the part cryogen in the condenser directly is put on the cryogen dish of evaporimeter, no longer the heat exchange coil by evaporimeter; After first magnetic valve is opened, emit chilled water, make the interior chilled water of main frame remain on certain flow rate, avoid icing, treat to close again after condenser 2 interior part cryogens all are put on the evaporimeter cryogen dish.
Absorption type air conditioner cold water main unit of the present invention; include high pressure generator; condenser; low pressure generator; absorber; evaporimeter; high-temperature heat exchanger; low temperature heat exchanger; solution pump; cryogenic fluid pump; the heat input unit; the chilled water water pump; chilled-water flow protection sensor; the main frame central controller; wherein high pressure generator passes through low pressure generator; condenser is connected with evaporimeter; the cryogen inlet of evaporimeter is connected with cryogenic fluid pump; the chilled water inlet of evaporimeter is connected with the chilled water input interface by the chilled water water pump; the chilled water outlet of evaporimeter is connected with the chilled water output interface by chilled-water flow protection sensor; the solution inlet of absorber is connected with solution pump; and absorber is provided with cooling water input interface and cooling water output interface; high pressure generator is connected with absorber by high-temperature heat exchanger and low temperature heat exchanger; wherein be equiped with the 3rd magnetic valve on condenser and the pipeline that evaporimeter cryogen dish is connected; the pipeline that condenser is connected with the evaporimeter heat exchange coil is provided with second magnetic valve; be equiped with first magnetic valve on the chilled water inlet of evaporimeter and the pipeline that the chilled water water pump is connected, and first magnetic valve; second magnetic valve; the 3rd magnetic valve and chilled-water flow protection sensor are connected with the main frame central controller.
Also be equiped with when the cold water main unit operate as normal on the chilled water inlet of above-mentioned evaporimeter and the pipeline that the chilled water water pump is connected and open, need the overhaul reserve hand-operated valve of manual-lock before shutting down.
Above-mentioned high pressure generator is connected with the heat input unit.
Above-mentioned first magnetic valve and the 3rd magnetic valve are to open immediately when outage or input signal, and the normal closed gate of time-delay closing; The normally open valve door of closing immediately when second magnetic valve is outage or input signal.
The antifreeze tube side method of absorption type air conditioner cold water main unit of the present invention, it includes following process:
1) when the cold water main unit operate as normal, first magnetic valve and the 3rd magnetic valve are all closed, and second magnetic valve is opened, and have guaranteed the stable and efficient operation of system;
2) when unexpected situation or maloperation take place, the chilled water flow velocity is low excessively, chilled-water flow protection sensor passes the signal along to the main frame central controller, main frame central controller output signal, control chilled water water pump and cryogenic fluid pump quit work, open first magnetic valve and the 3rd magnetic valve simultaneously, second closed electromagnetic valve; After wherein the 3rd magnetic valve is opened, the part cryogen in the condenser directly is put on the cryogen dish of evaporimeter, because second closed electromagnetic valve, cryogen is the heat exchange coil by evaporimeter no longer; After first magnetic valve is opened, emit chilled water, make that chilled water remains on certain flow rate in the main frame, avoid icing, treat to close again after part cryogen in the condenser all is put on the cryogen dish of evaporimeter.
Absorption type air conditioner cold water main unit of the present invention is owing to be equiped with magnetic valve on the connecting line between employing condenser and the evaporimeter, be equiped with the structure of magnetic valve on the chilled water inlet of evaporimeter and the pipeline that the chilled water water pump is connected, having a power failure or chilled water circulating pump unexpected situation or maloperation such as quits work suddenly when taking place, open condenser liquid refrigerant bypass solenoid valve, or open chilled water sluicing magnetic valve, take place thereby stop absorption cold water main frame evaporimeter frozen pipe accident.Absorption type air conditioner cold water main unit of the present invention is reasonable in design, and antifreeze tube side method of the present invention is simple to operate, convenient and practical.
Description of drawings:
Fig. 1 is the schematic diagram of the used apparatus embodiments 1 of dynamic ice cold-storage method of the present invention;
Fig. 2 is the schematic diagram of the used apparatus embodiments 2 of dynamic ice cold-storage method of the present invention.
The specific embodiment:
Embodiment 1:
Absorption type air conditioner cold water main unit of the present invention; include high pressure generator 1; condenser 2; low pressure generator 3; absorber 4; evaporimeter 5; high-temperature heat exchanger 6; low temperature heat exchanger 7; solution pump 8; cryogenic fluid pump 9; heat input unit 10; chilled water water pump 15; chilled-water flow protection sensor 16; main frame central controller 17; wherein high pressure generator 1 is by low pressure generator 3; condenser 2 is connected with evaporimeter 5; the cryogen inlet of evaporimeter 5 is connected with cryogenic fluid pump 9; the chilled water inlet of evaporimeter 5 is connected with chilled water input interface 13 by chilled water water pump 15; the chilled water outlet of evaporimeter 5 is connected with chilled water output interface 14 by chilled-water flow protection sensor 16; the solution inlet of absorber 4 is connected with solution pump 8; and absorber 4 is provided with cooling water input interface 11 and cooling water output interface 12; high pressure generator 1 is connected with absorber 4 by high-temperature heat exchanger 6 and low temperature heat exchanger 7; wherein directly be connected by pipeline between the heat exchange coil of condenser 2 and evaporimeter 5; be equiped with second magnetic valve 20 on condenser 2 and the pipeline that the cryogen dish of evaporimeter 5 is connected; be equiped with first magnetic valve 19 on the chilled water inlet of evaporimeter 5 and the pipeline that chilled water water pump 15 is connected, and first magnetic valve 19; second magnetic valve 20 and chilled-water flow protection sensor 16 are connected with main frame central controller 17.
Also be equiped with when the cold water main unit operate as normal on the chilled water inlet of above-mentioned evaporimeter 5 and the pipeline that chilled water water pump 15 is connected and open, need the overhaul reserve hand-operated valve 18 of manual-lock before shutting down.
Above-mentioned high pressure generator 1 is connected with heat input unit 10.
Above-mentioned first magnetic valve 19 and second magnetic valve 20 are to open immediately when outage or input signal, and the normal closed gate of time-delay closing.
The antifreeze tube side method of absorption type air conditioner cold water main unit of the present invention, it includes following process:
1) when the cold water main unit operate as normal, first magnetic valve 19 and second magnetic valve 20 have guaranteed the stable and efficient operation of system;
2) when unexpected situation or maloperation take place, the chilled water flow velocity is low excessively, chilled-water flow protection sensor 16 passes the signal along to main frame central controller 17, main frame central controller 17 output signals, control chilled water water pump 15 and cryogenic fluid pump 9 quit work, and open first magnetic valve 19 and second magnetic valve 20 simultaneously; After wherein second magnetic valve 20 is opened, the part cryogen in the condenser 2 directly is put on the cryogen dish of evaporimeter 5, no longer passes through the heat exchange coil of evaporimeter 5; After first magnetic valve 19 is opened, emit chilled water, make the interior chilled water of main frame remain on certain flow rate, avoid icing, treat to close again after condenser 2 interior part cryogens all are put on the evaporimeter 5 cryogen dishes.Although wasted some chilled waters like this, can guarantee that chilled water can freezing and expansion, stop the frozen pipe accident.
Embodiment 2:
The schematic diagram of absorption type air conditioner cold water main unit of the present invention as shown in Figure 2; include high pressure generator 1; condenser 2; low pressure generator 3; absorber 4; evaporimeter 5; high-temperature heat exchanger 6; low temperature heat exchanger 7; solution pump 8; cryogenic fluid pump 9; heat input unit 10; chilled water water pump 15; chilled-water flow protection sensor 16; main frame central controller 17; wherein high pressure generator 1 is by low pressure generator 3; condenser 2 is connected with evaporimeter 5; the cryogen inlet of evaporimeter 5 is connected with cryogenic fluid pump 9; the chilled water inlet of evaporimeter 5 is connected with chilled water input interface 13 by chilled water water pump 15; evaporimeter 5 chilled water outlets are connected with chilled water output interface 14 by chilled-water flow protection sensor 16; the solution inlet of absorber 4 is connected with solution pump 8; and absorber 4 is provided with cooling water input interface 11 and cooling water output interface 12; high pressure generator 1 is connected with absorber 4 by high-temperature heat exchanger 6 and low temperature heat exchanger 7; wherein be equiped with the 3rd magnetic valve 21 on condenser 2 and the pipeline that evaporimeter 5 cryogen dishes are connected; the pipeline that condenser 2 is connected with evaporimeter 5 heat exchange coils is provided with second magnetic valve 20; be equiped with first magnetic valve 19 on the chilled water inlet of evaporimeter 5 and the pipeline that chilled water water pump 15 is connected, and first magnetic valve 19; second magnetic valve 20; the 3rd magnetic valve 21 and chilled-water flow protection sensor 16 are connected with main frame central controller 17.Difference from Example 1 is to be equiped with magnetic valve on condenser 2 and the pipeline that evaporimeter 5 heat exchange coils are connected.
Also be equiped with when the cold water main unit operate as normal on the chilled water inlet of above-mentioned evaporimeter 5 and the pipeline that chilled water water pump 15 is connected and open, need the overhaul reserve hand-operated valve 18 of manual-lock before shutting down.
Above-mentioned high pressure generator 1 is connected with heat input unit 10.
Above-mentioned first magnetic valve 19 and the 3rd magnetic valve 21 are to open immediately when outage or input signal, and the normal closed gate of time-delay closing; The normally open valve door of closing immediately when second magnetic valve 20 is outage or input signal.
The antifreeze tube side method of absorption type air conditioner cold water main unit of the present invention, it includes following process:
1) when the cold water main unit operate as normal, first magnetic valve 19 and the 3rd magnetic valve 21 are all closed, and second magnetic valve 20 is opened, and have guaranteed the stable and efficient operation of system;
2) when unexpected situation or maloperation take place, the chilled water flow velocity is low excessively, chilled-water flow protection sensor 16 passes the signal along to main frame central controller 17, main frame central controller 17 output signals, control chilled water water pump 15 and cryogenic fluid pump 9 quit work, open first magnetic valve 19 simultaneously and the 3rd magnetic valve 21, the second magnetic valves 20 cut out; After wherein the 3rd magnetic valve 21 is opened, the part cryogen in the condenser 2 directly is put on the cryogen dish of evaporimeter 5, because second magnetic valve 20 cuts out, cryogen no longer passes through the heat exchange coil of evaporimeter 5; After first magnetic valve 19 is opened, emit chilled water, make that chilled water remains on certain flow rate in the main frame, avoid icing, treat to close again after part cryogens in the condenser 2 all are put on the cryogen dish of evaporimeter 5.
Although wasted some chilled waters like this, can guarantee that chilled water can freezing and expansion, stop the frozen pipe accident.
Magnetic valve can replace with motor-driven valve in above-mentioned two kinds of systems, and can a mounting portion valve.
Claims (10)
1. absorption type air conditioner cold water main unit; include high pressure generator (1); condenser (2); low pressure generator (3); absorber (4); evaporimeter (5); high-temperature heat exchanger (6); low temperature heat exchanger (7); solution pump (8); cryogenic fluid pump (9); heat input unit (10); chilled water water pump (15); chilled-water flow protection sensor (16); main frame central controller (17); wherein high pressure generator (1) is by low pressure generator (3); condenser (2) is connected with evaporimeter (5); the cryogen inlet of evaporimeter (5) is connected with cryogenic fluid pump (9); the chilled water inlet of evaporimeter (5) is connected with chilled water input interface (13) by chilled water water pump (15); the chilled water outlet of evaporimeter (5) protects sensor (16) to be connected with chilled water output interface (14) by chilled-water flow; the solution inlet of absorber (4) is connected with solution pump (8); and absorber (4) is provided with cooling water input interface (11) and cooling water output interface (12); high pressure generator (1) is connected with absorber (4) by high-temperature heat exchanger (6) and low temperature heat exchanger (7); it is characterized in that directly being connected by pipeline between the heat exchange coil of condenser (2) and evaporimeter (5); be equiped with second magnetic valve (20) on condenser (2) and the pipeline that the cryogen dish of evaporimeter (5) is connected; be equiped with first magnetic valve (19) on the chilled water inlet of evaporimeter (5) and the pipeline that chilled water water pump (15) is connected, and first magnetic valve (19); second magnetic valve (20) and chilled-water flow protection sensor (16) are connected with main frame central controller (17).
2. want 1 described absorption type air conditioner cold water main unit according to right; also be equiped with when the cold water main unit operate as normal on the chilled water inlet that it is characterized in that above-mentioned evaporimeter (5) and the pipeline that chilled water water pump (15) is connected and open, need the overhaul reserve hand-operated valve (18) of manual-lock before shutting down.
3. absorption type air conditioner cold water main unit according to claim 1 is characterized in that above-mentioned high pressure generator (1) is connected with heat input unit (10).
4. absorption type air conditioner cold water main unit according to claim 1 is characterized in that above-mentioned first magnetic valve (19) and second magnetic valve (20) are to open immediately when outage or input signal, and the normal closed gate of time-delay closing.
5. the antifreeze tube side method of the described absorption type air conditioner cold water main unit of claim 1 is characterized in that including following process:
1) when the cold water main unit operate as normal, first magnetic valve (19) and second magnetic valve (20) are closed, and have guaranteed the stable and efficient operation of system;
2) when unexpected situation or maloperation take place, the chilled water flow velocity is low excessively, chilled-water flow protection sensor (16) passes the signal along to main frame central controller (17), main frame central controller (17) output signal, control cooling water water pump (15) and cryogenic fluid pump (9) quit work, and open first magnetic valve (19) and second magnetic valve (20) simultaneously; After wherein second magnetic valve (20) is opened, the part cryogen in the condenser (2) directly is put on the cryogen dish of evaporimeter (5), no longer passes through the heat exchange coil of evaporimeter (5); After first magnetic valve (19) is opened, emit chilled water, make the interior chilled water of main frame remain on certain flow rate, avoid icing, treat to close again after the interior cryogen of condenser (2) all is put on evaporimeter (5) the cryogen dish.
6. absorption type air conditioner cold water main unit; include high pressure generator (1); condenser (2); low pressure generator (3); absorber (4); evaporimeter (5); high-temperature heat exchanger (6); low temperature heat exchanger (7); solution pump (8); cryogenic fluid pump (9); heat input unit (10); chilled water water pump (15); chilled-water flow protection sensor (16); main frame central controller (17); wherein high pressure generator (1) is by low pressure generator (3); condenser (2) is connected with evaporimeter (5); the cryogen inlet of evaporimeter (5) is connected with cryogenic fluid pump (9); the chilled water inlet of evaporimeter (5) is connected with chilled water input interface (13) by chilled water water pump (15); the chilled water outlet of evaporimeter (5) protects sensor (16) to be connected with chilled water output interface (14) by chilled-water flow; the solution inlet of absorber (4) is connected with solution pump (8); and absorber (4) is provided with cooling water input interface (11) and cooling water output interface (12); high pressure generator (1) is connected with absorber (4) by high-temperature heat exchanger (6) and low temperature heat exchanger (7); it is characterized in that being equiped with the 3rd magnetic valve (21) on condenser (2) and the pipeline that evaporimeter (5) cryogen dish is connected; condenser (2) is provided with second magnetic valve (20) with the pipeline that evaporimeter (5) heat exchange coil is connected; be equiped with first magnetic valve (19) on the chilled water inlet of evaporimeter (5) and the pipeline that chilled water water pump (15) is connected, and first magnetic valve (19); second magnetic valve (20); the 3rd magnetic valve (21) and chilled-water flow protection sensor (16) are connected with main frame central controller (17).
7. want 6 described absorption type air conditioner cold water main units according to right; also be equiped with when the cold water main unit operate as normal on the chilled water inlet that it is characterized in that above-mentioned evaporimeter (5) and the pipeline that chilled water water pump (15) is connected and open, need the overhaul reserve hand-operated valve (18) of manual-lock before shutting down.
8. absorption type air conditioner cold water main unit according to claim 6 is characterized in that above-mentioned high pressure generator (1) is connected with heat input unit (10).
9. absorption type air conditioner cold water main unit according to claim 6 is characterized in that above-mentioned first magnetic valve (19) and the 3rd magnetic valve (21) are to open immediately when outage or input signal, and the normal closed gate of time-delay closing; The normally open valve door of closing immediately when second magnetic valve (20) is outage or input signal.
10. the antifreeze tube side method of the described absorption type air conditioner cold water main unit of claim 6 is characterized in that including following process:
1) when the cold water main unit operate as normal, first magnetic valve (19) and the 3rd magnetic valve (21) are all closed, and second magnetic valve (20) is opened, and have guaranteed the stable and efficient operation of system;
2) when unexpected situation or maloperation take place, the chilled water flow velocity is low excessively, chilled-water flow protection sensor (16) passes the signal along to main frame central controller (17), main frame central controller (17) output signal, control chilled water water pump (15) and cryogenic fluid pump (9) quit work, open first magnetic valve (19) and the 3rd magnetic valve (21) simultaneously, second magnetic valve (20) cuts out; After wherein the 3rd magnetic valve (21) is opened, the part cryogen in the condenser (2) directly is put on the cryogen dish of evaporimeter (5), because second magnetic valve (20) cuts out, cryogen no longer passes through the heat exchange coil of evaporimeter (5); After first magnetic valve (19) is opened, emit chilled water, make that chilled water remains on certain flow rate in the main frame, avoid icing, treat to close again after part cryogen in the condenser (2) all is put on the cryogen dish of evaporimeter (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100258107A CN101236033B (en) | 2008-01-15 | 2008-01-15 | Absorption type air conditioner cold water main unit and its tube antifreezing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100258107A CN101236033B (en) | 2008-01-15 | 2008-01-15 | Absorption type air conditioner cold water main unit and its tube antifreezing method |
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| CN101236033A CN101236033A (en) | 2008-08-06 |
| CN101236033B true CN101236033B (en) | 2010-06-16 |
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| CN2008100258107A Expired - Fee Related CN101236033B (en) | 2008-01-15 | 2008-01-15 | Absorption type air conditioner cold water main unit and its tube antifreezing method |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101915488A (en) * | 2010-08-16 | 2010-12-15 | 刘胜 | Quick cooler for drinks |
| CN111059658B (en) * | 2019-12-11 | 2021-03-19 | 珠海格力电器股份有限公司 | Water chilling unit and ice storage air conditioning equipment |
| CN112197451A (en) * | 2020-10-14 | 2021-01-08 | 珠海格力电器股份有限公司 | Power-off anti-freezing air conditioning unit and control method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6823682B1 (en) * | 2004-01-13 | 2004-11-30 | Carrier Corporation | Absorptive chiller with evaporator protection |
| CN1632420A (en) * | 2004-12-31 | 2005-06-29 | 江苏双良空调设备股份有限公司 | Lithium brominate absorptive-type refrigerator with cryogen steam regulation and antifreeze device |
| CN2819132Y (en) * | 2005-05-12 | 2006-09-20 | 淄博创尔沃中央空调有限公司 | Power-off and water-break anti-freezing protector of lithium bromide absorbing cooling and heating water set |
-
2008
- 2008-01-15 CN CN2008100258107A patent/CN101236033B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6823682B1 (en) * | 2004-01-13 | 2004-11-30 | Carrier Corporation | Absorptive chiller with evaporator protection |
| CN1632420A (en) * | 2004-12-31 | 2005-06-29 | 江苏双良空调设备股份有限公司 | Lithium brominate absorptive-type refrigerator with cryogen steam regulation and antifreeze device |
| CN2819132Y (en) * | 2005-05-12 | 2006-09-20 | 淄博创尔沃中央空调有限公司 | Power-off and water-break anti-freezing protector of lithium bromide absorbing cooling and heating water set |
Non-Patent Citations (2)
| Title |
|---|
| JP平4-32668A 1992.02.04 |
| JP特开平6-229647A 1994.08.19 |
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