CN202303719U - Supercooled water type direct-current frequency-conversion ice-storage multi-connected air-conditioner - Google Patents
Supercooled water type direct-current frequency-conversion ice-storage multi-connected air-conditioner Download PDFInfo
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- CN202303719U CN202303719U CN 201120373075 CN201120373075U CN202303719U CN 202303719 U CN202303719 U CN 202303719U CN 201120373075 CN201120373075 CN 201120373075 CN 201120373075 U CN201120373075 U CN 201120373075U CN 202303719 U CN202303719 U CN 202303719U
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Abstract
The utility model discloses a supercooled water type direct-current frequency-conversion ice-storage multi-connected air-conditioner which comprises an indoor unit (1), a dynamic ice storage device and an outdoor unit (3), wherein the outdoor unit (3) is respectively communicated with the dynamic ice storage device and the indoor unit (1) by pipes; and the dynamic ice storage device is a primary refrigerant circulating ice storage device (2). The supercooled water type direct-current frequency-conversion ice-storage multi-connected air-conditioner is high in ice-making efficiency.
Description
Technical field
The utility model relates to air-conditioning technical field, specifically is a kind of subcooled water formula DC frequency-changing ice cold-storage combined air conditioners.
Background technology
The ice cold-storage has obtained very big development in recent years as a kind of means of effective peak load shifting.Announced a kind of Overcold ice-storage air-conditioning unit on the China national intellectual property board web; See Fig. 1; This Overcold ice cold-storage unit comprises ice maker, a closed circulation pipeline and three outer contacts, and this closed circulation pipeline has an electric expansion valve and three magnetic valves through this ice maker on the closed circulation pipeline; Electric expansion valve and one of them magnetic valve parallel connection, two other magnetic valve parallel connection; Wherein the first outer contact is positioned at electric expansion valve one side, and the second outer contact is connected to a magnetic valve between the magnetic valve and the above-mentioned second outer contact between magnetic valve and ice maker, and the other end of magnetic valve is the 3rd outer contact.The weak point of this Overcold ice-storage air-conditioning unit is: this ice making mode belongs to static ice, and the ice making rate has only about 50%, so its ice making efficient is low.
Document " experimental study of secondary refrigerant formula dynamic freezing of supercooled water air-conditioning system " (HVAC; 2003; Vol.33; No.4) a kind of subcooled water formula dynamic ice-making air-conditioning system that proposes in is seen Fig. 2, and this device is made up of kind of refrigeration cycle part, refrigerating medium part and subcooled water cyclic part three parts.Kind of refrigeration cycle partly comprises evaporimeter, compressor, condenser, expansion valve; Refrigerating medium partly comprises heater, non freezing solution level pressure case, non freezing solution circulating pump composition; The subcooled water cyclic part comprises ice crystal cancellation element, water-circulating pump, subcooler, elimination supercooling apparatus, ice build-up tank, filtration ice crystal device.Though this device adopts supercooled water dynamic ice-making pattern, improved the ice making rate of ice build-up tank, this system adopts the secondary refrigerant endless form, is promptly reduced the temperature of secondary refrigerant refrigerating medium earlier by refrigeration unit, crosses the water in the cold ice build-up tank by refrigerating medium again.The shortcoming of this mode is: the secondary refrigerant circulation has reduced the ice making efficient of whole air-conditioning system.
The utility model content
The technical problem that the utility model will solve is, overcomes the defective of above prior art, provides a kind of ice making efficient high subcooled water formula DC frequency-changing ice cold-storage combined air conditioners.
The technical scheme of the utility model is, a kind of subcooled water formula DC frequency-changing ice cold-storage combined air conditioners is provided, and comprises indoor set, dynamic ice storage unit and off-premises station, and described off-premises station is communicated with through pipeline with dynamic ice storage unit, indoor set respectively; Described dynamic ice storage unit is a refrigerant circulation ice storage unit.
A described refrigerant ice storage unit comprises Ice Storage Tank, is located at supercooled water cancellation element, the ice crystal filter assemblies in the Ice Storage Tank and is located at the outer subsidiary water tank of Ice Storage Tank, subcooler and ice crystal eliminates heat exchanger; Described supercooled water cancellation element is located at the place, water side of subcooler; Described ice crystal filter assemblies is located at the Ice Storage Tank bottom and eliminates heat exchanger through a supercooled water water circulating pump and ice crystal and is communicated with through pipeline; Described ice crystal is eliminated heat exchanger and also is communicated with through pipeline with the water intake end of subcooler; Described subcooler, ice crystal are eliminated heat exchanger and are also communicated through pipeline with indoor set, off-premises station; The pipeline that described subcooler, ice crystal elimination heat exchanger are communicated with indoor set, off-premises station is provided with first magnetic valve, electric expansion valve and check valve; Described subsidiary water tank is communicated with through pipeline with Ice Storage Tank; Also be provided with on the pipeline between described Ice Storage Tank and the subsidiary water tank one be used to open or close the moisturizing passage ball-cock assembly.
Also be provided with the sub-cooling coil ice storage unit in the described Ice Storage Tank, described sub-cooling coil ice storage unit communicates through pipeline with indoor set, off-premises station; Described pipeline is provided with second magnetic valve.
At least one submodule of described off-premises station, each submodule is formed by a frequency-changeable compressor and two invariable frequency compressors.
After adopting above structure, the utility model compared with prior art has the following advantages:
The utility model subcooled water formula DC frequency-changing ice cold-storage combined air conditioners pass through refrigerant circulation ice storage unit ice-reserving one time; Because what adopt is dynamic ice-storage and through a refrigerant circulation ice-making, it has reduced the energy that loses in the secondary refrigerant circulation ice-making, and in subcooled water formula continuous ice-making process; Ice sheet is not grown at heat exchange surface; With the carrying out and change of ice-making process, therefore, the subcooled water ice-making process stability of a system is not high for thermal resistance between water and cold-producing medium or the catalyst carrier; Ice making efficient is high, and ice making efficient can reach 80%～90%.
As improvement, also be provided with the sub-cooling coil ice storage unit in the described Ice Storage Tank, make the ice making efficient of the utility model subcooled water formula DC frequency-changing ice cold-storage combined air conditioners be able to further raising through this cooling coil ice storage unit.
As improvement; At least one submodule of described off-premises station; Each submodule is formed by a frequency-changeable compressor and two invariable frequency compressors, and the effect through frequency-changeable compressor and invariable frequency compressor makes the ice making efficient of the utility model subcooled water formula DC frequency-changing ice cold-storage combined air conditioners be further improved.
Description of drawings
Fig. 1 is the structural representation of prior art Overcold ice-storage air-conditioning unit.
Fig. 2 is the structural representation of prior art subcooled water formula dynamic ice-making air-conditioning system.
Fig. 3 is the structural representation of the utility model subcooled water formula DC frequency-changing ice cold-storage combined air conditioners.
Fig. 4 is the structural representation of a refrigerant circulation ice storage unit.
Shown in the figure 1, indoor set, 2, refrigerant circulation ice storage units, 3, off-premises station, 4, Ice Storage Tank, 5, the supercooled water cancellation element; 6, ice crystal filter assemblies, 7, subsidiary water tank, 8, subcooler, 9, ice crystal eliminates heat exchanger; 10, supercooled water water circulating pump, 11, first magnetic valve, 12, electric expansion valve, 13, check valve; 14, ball-cock assembly, 14.1, first control end, 14.2, second control end, 15, the sub-cooling coil ice storage unit; 16, second magnetic valve, 17, submodule, 18, frequency-changeable compressor, 19, invariable frequency compressor.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Like Fig. 3, shown in Figure 4, a kind of subcooled water formula of the utility model DC frequency-changing ice cold-storage combined air conditioners comprises indoor set 1, dynamic ice storage unit and off-premises station 3.
Off-premises station 3 comprises at least one submodule 17, and this submodule 17 is equivalent to primary module when a sub-module 17; When two sub-module 17, one of them submodule 17 is a primary module, and another one submodule 17 is a submodule; Each submodule 17 mainly comprises: a frequency-changeable compressor 18, two invariable frequency compressors 19, oil return capillary, compressor air-discharging check valve, blast pipes compile threeway, gs-oil separator, gs-oil separator outlet check valve, high-voltage switch gear, the unloading of gas bypass magnetic valve, four-way change-over valve, outdoor heat exchanger, outdoor fan motor, Y-type three way type, heat compositions such as electric expansion valve, bypass check valve, high pressure reservoir, liquid bypass solenoid valve, liquid bypass capillary, total feed pipe magnetic valve, total return-air stop valve, total feed flow stop valve, liquid pipe branch pipe, tracheorrhaphy manifold, gas-liquid separator, low tension switch, and its concrete syndeton is as shown in Figure 3.
Indoor set 1 comprises a plurality of indoor submodules, compositions such as the interior electric expansion valve of each indoor submodule.The ability size and the quantity of described indoor set 1 decide according to air-conditioned room load character and air-conditioning area.Described off-premises station 3 at least one submodule 17, each submodule 17 is formed by a frequency-changeable compressor 18 and two invariable frequency compressors 19.
Described off-premises station 3 is communicated with through pipeline with dynamic ice storage unit, indoor set 1 respectively, and pipeline is divided into blast pipe and muffler, and promptly the submodule 17 of off-premises station 3, indoor submodule, dynamic ice storage unit or the like all are connected with muffler through blast pipe respectively.
Described dynamic ice storage unit is a refrigerant circulation ice storage unit 2.
A described refrigerant ice storage unit 2 comprises Ice Storage Tank 4, is located at supercooled water cancellation element 5, the ice crystal filter assemblies 6 in the Ice Storage Tank 4 and is located at Ice Storage Tank 4 outer subsidiary water tank 7, subcooler 8 and ice crystals eliminates heat exchanger 9; Be provided with reticulate body in the wherein said subcooled water cancellation element 5; Its effect is to be ejected into 5 last times of subcooled water cancellation element when the subcooled water that forms through subcooler 8; Because subcooled water collides and the rising water temperature with it, eliminate degree of supercooling, temperature rises to 0 ℃; At this moment, chilled water begins to freeze.Because the percussion of chilled water flow, the ice on subcooled water cancellation element 5 slips in the Ice Storage Tank 4, forms mixture of ice and water; Described ice crystal filter assemblies 6 is a reticulate body, and its effect is the ice crystal that filters in the chilled water of supercooled water water circulating pump 10, prevents that ice crystal from getting in the supercooling system; Described ice crystal is eliminated heat exchanger 9 for being provided with the reticulate body of inner chamber; Its effect is through the chilled water before the heating entering subcooler 8; The not filtrable tiny ice crystal of ice crystal filter assemblies 6 is melted; Prevent that tiny ice crystal from getting into subcooler 8, freezes and obstruction subcooled water circulation line in heat exchanger tube; 8 effects of described subcooler are, utilize cold-producing medium directly the effect of evaporation will manage interior chilled water and cross and be chilled to-2 ℃～-4 ℃; This supercooled water cancellation element 5 is located at the place, water side of subcooler 8, and the water that promptly comes out from the water side of subcooler 8 is directly beaten on supercooled water cancellation element 5; Be provided with heater element in the described ice crystal filter assemblies 6, this ice crystal filter assemblies 6 is located at Ice Storage Tank 4 bottoms and is communicated with through pipeline through a supercooled water water circulating pump 10 and ice crystal elimination heat exchanger 9; Described ice crystal is eliminated heat exchanger 9 and also is communicated with through pipeline with the water intake end of subcooler 8; Described subcooler 8, ice crystal are eliminated heat exchanger 9 and are also communicated through pipeline with indoor set 1, off-premises station 3, and the pipeline of its connection is provided with first magnetic valve 11, electric expansion valve 12 and check valve 13; Described subcooler 8, ice crystal are eliminated pipeline that heat exchanger 9 is communicated with indoor set, off-premises station and are provided with first magnetic valve 11, electric expansion valve 12 and check valve 13; Described subsidiary water tank 7 and Ice Storage Tank 4 are communicated with through pipeline; Also be provided with on the pipeline between described Ice Storage Tank 4 and the subsidiary water tank 7 one be used to open or close the moisturizing passage ball-cock assembly 14, wherein first control end 14.1, second control end 14.2 of ball-cock assembly are located on the Ice Storage Tank 4.Also be provided with sub-cooling coil ice storage unit 15 in the described Ice Storage Tank 4, described sub-cooling coil ice storage unit 15 comprises the cooling coil that forms of bending, and this cooling coil and indoor set 1, off-premises station 3 communicate through pipeline; Described pipeline is provided with second magnetic valve 16.
Subcooled water formula continuous ice-making belongs to a kind of dynamic ice-making mode, and its operation principle is: water is cooled in subcooler 8, reaches supercooled state in subcooler 8 exits; The supercooled water temperature is at-2 ℃～-4 ℃, and afterwards, subcooled water gets into Ice Storage Tank 4; In Ice Storage Tank 4, the supercooled state of subcooled water is eliminated becomes 0 ℃ mixture of ice and water, and ice wherein is left in the Ice Storage Tank 4; Water is separated, and gets into subcooler 8 once more, accomplishes a circulation.To get little ice crystal in the water inlet in order before subcooler 8, eliminating, need water temperature to be elevated to 0.4 ℃～0.5 ℃.
Below only be described, but can not be interpreted as it is restriction claim with regard to the most preferred embodiment of the utility model.The utility model is not limited only to above embodiment, and its concrete structure allows variation.All various variations of in the protection domain of the utility model independent claims, being done are all in the protection domain at the utility model.
Claims (4)
1. a subcooled water formula DC frequency-changing ice cold-storage combined air conditioners comprises indoor set (1), dynamic ice storage unit and off-premises station (3), and described off-premises station (3) is communicated with through pipeline with dynamic ice storage unit, indoor set (1) respectively; It is characterized in that: described dynamic ice storage unit is a refrigerant circulation ice storage unit (2).
2. subcooled water formula DC frequency-changing ice cold-storage combined air conditioners according to claim 1 is characterized in that: a described refrigerant ice storage unit (2) comprises Ice Storage Tank (4), is located at supercooled water cancellation element (5), the ice crystal filter assemblies (6) in the Ice Storage Tank (4) and is located at the outer subsidiary water tank (7) of Ice Storage Tank (4), subcooler (8) and ice crystal eliminates heat exchanger (9); Described supercooled water cancellation element (5) is located at the delivery port place of subcooler (8); Described ice crystal filter assemblies (6) is located at Ice Storage Tank (4) bottom and eliminates heat exchanger (9) through a supercooled water water circulating pump (10) and ice crystal and is communicated with through pipeline; Described ice crystal is eliminated heat exchanger (9) and also is communicated with through pipeline with the water intake end of subcooler (8); Described subcooler (8), ice crystal are eliminated heat exchanger (9) and are also communicated through pipeline with indoor set (1), off-premises station (3); The pipeline that described subcooler (8), ice crystal elimination heat exchanger (9) are communicated with indoor set, off-premises station is provided with first magnetic valve (11), electric expansion valve (12) and check valve (13); Described subsidiary water tank (7) is communicated with through pipeline with Ice Storage Tank (4); Also be provided with on the pipeline between described Ice Storage Tank (4) and the subsidiary water tank (7) one be used to open or close the moisturizing passage ball-cock assembly (14).
3. subcooled water formula DC frequency-changing ice cold-storage combined air conditioners according to claim 2; It is characterized in that: also be provided with sub-cooling coil ice storage unit (15) in the described Ice Storage Tank (4), described sub-cooling coil ice storage unit (15) communicates through pipeline with indoor set (1), off-premises station (3); Described pipeline is provided with second magnetic valve (16).
4. subcooled water formula DC frequency-changing ice cold-storage combined air conditioners according to claim 1; It is characterized in that: at least one submodule of described off-premises station (3) (17), each submodule (17) is formed by a frequency-changeable compressor (18) and two invariable frequency compressors (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120373075 CN202303719U (en) | 2011-09-28 | 2011-09-28 | Supercooled water type direct-current frequency-conversion ice-storage multi-connected air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120373075 CN202303719U (en) | 2011-09-28 | 2011-09-28 | Supercooled water type direct-current frequency-conversion ice-storage multi-connected air-conditioner |
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| Publication Number | Publication Date |
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| CN202303719U true CN202303719U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120373075 Expired - Fee Related CN202303719U (en) | 2011-09-28 | 2011-09-28 | Supercooled water type direct-current frequency-conversion ice-storage multi-connected air-conditioner |
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| CN (1) | CN202303719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766455A (en) * | 2017-02-20 | 2017-05-31 | 苏州高野能源科技有限公司 | Dynamic ice-making device |
| CN109489286A (en) * | 2018-12-19 | 2019-03-19 | 广东美的白色家电技术创新中心有限公司 | Air-conditioning system and air conditioner |
-
2011
- 2011-09-28 CN CN 201120373075 patent/CN202303719U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766455A (en) * | 2017-02-20 | 2017-05-31 | 苏州高野能源科技有限公司 | Dynamic ice-making device |
| CN109489286A (en) * | 2018-12-19 | 2019-03-19 | 广东美的白色家电技术创新中心有限公司 | Air-conditioning system and air conditioner |
| CN109489286B (en) * | 2018-12-19 | 2023-09-19 | 广东美的白色家电技术创新中心有限公司 | Air conditioning system and air conditioner |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee after: NINGBO AUX ELECTRIC CO., LTD. Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Electric Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20200928 |