CN105805872A - Control method of ice storage air-conditioning system and ice storage air-conditioning system - Google Patents
Control method of ice storage air-conditioning system and ice storage air-conditioning system Download PDFInfo
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- CN105805872A CN105805872A CN201610266798.3A CN201610266798A CN105805872A CN 105805872 A CN105805872 A CN 105805872A CN 201610266798 A CN201610266798 A CN 201610266798A CN 105805872 A CN105805872 A CN 105805872A
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- ice
- air conditioning
- preset temperature
- heat exchanger
- refrigerating medium
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F5/0021—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice using phase change material [PCM] for storage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a control method of an ice storage air-conditioning system and the ice storage air-conditioning system. The method includes the steps that a duplex mode main chiller provides a secondary refrigerant solution at a first preset temperature for an ice storage tank through a first water pipe under an ice-making working condition; after ice making, the temperature of the secondary refrigerant solution is increased to a second preset temperature, and the ice storage tank outputs a secondary refrigerant solution at the second preset temperature through a second water pipe, a heat exchanger is installed on the second water pipe and cold water circularly flows between the heat exchanger and an air-conditioning terminal; and heat exchange is carried out on the secondary refrigerant solution at the second preset temperature and the cold water through the heat exchanger, and cold water at the temperature needed by the air-conditioning terminal is obtained. The ice storage air-conditioning system integrates cold storage and cold supply, the duplex mode main chiller supplies cold on the premise of making ice, the refrigerating capacity of the main chiller is effectively used for meeting the requirement of the air-conditioning terminal, and therefore the energy utilization rate of the system is increased, and the problem of energy waste in a traditional control method is solved.
Description
Technical field
The present invention relates to air-conditioning technical field, in particular to control method and the ice-chilling air conditioning system of a kind of ice-chilling air conditioning system.
Background technology
In traditional ice air conditioning system, Double-working-condition main frame not supplying cold directly under ice making operating mode, under cooling operating mode, do not carry out ice making.
Fig. 1 is the Double-working-condition main frame of prior art operating diagram under ice making operating mode, as it is shown in figure 1, main frame provides-5 DEG C of ethylene glycol solutions, cold storage of ice making in Ice Storage Tank, ethylene glycol solution is warming up to 0 DEG C and returns to main frame.
Fig. 2 is the Double-working-condition main frame of prior art operating diagram under cooling operating mode, as in figure 2 it is shown, main frame provides 7/12 DEG C of solution to air conditioning terminal, in order to cool-down dehumidification.Wherein, in traditional ice air conditioning system, except refrigerating medium is ethylene glycol solution, all the other and conventional air conditioning system are as good as.
If want cold-storage (ice making), cooling to carry out simultaneously, then as it is shown on figure 3, ice making ice is melted into cold water cooling again.
Fig. 3 is the operating diagram of the Double-working-condition main frame cold-storage cooling simultaneously of prior art, as it is shown on figure 3, main frame provides-5 DEG C of ethylene glycol solutions, cold storage of ice making in Ice Storage Tank, ethylene glycol solution is warming up to 0 DEG C and returns to main frame；And the ice of Ice Storage Tank provides 7/12 DEG C of Cold water supply air conditioning terminal after melting, in order to cool-down dehumidification.
But, in traditional ice air conditioning system, the situation of cold-storage cooling while of above-mentioned, first ice making ice-melt again, there is energy dissipation.
Summary of the invention
The embodiment of the present invention provides control method and the ice-chilling air conditioning system of a kind of ice-chilling air conditioning system, at least to solve in traditional ice air conditioning system, first ice making ice-melt again, the problem that there is energy dissipation when cold-storage cooling simultaneously.
For achieving the above object, embodiments provide the control method of a kind of ice-chilling air conditioning system, including: Double-working-condition main frame, under ice making operating mode, provides the refrigerating medium solution of the first preset temperature by the first water pipe to Ice Storage Tank；After ice making, the temperature of described refrigerating medium solution rises to the second preset temperature, and described Ice Storage Tank exports the refrigerating medium solution of described second preset temperature by the second water pipe, wherein, described second water pipe is provided with heat exchanger, between described heat exchanger and air conditioning terminal, circulates cold water；The refrigerating medium solution of described second preset temperature and described cold water carry out heat exchange by described heat exchanger, obtain the cold water that described air conditioning terminal is temperature required.
As preferably, described method also includes: if when ice making, described air conditioning terminal does not have refrigeration demand, then by the cold water storage that obtained by heat exchange to catch basin, wherein, described catch basin is connected with described heat exchanger.
As preferably, after refrigerating medium solution and the described cold water of described second preset temperature carry out heat exchange by described heat exchanger, described method also includes: the refrigerating medium solution after heat exchange is delivered to described Double-working-condition main frame.
As preferably, described refrigerating medium solution is ethylene glycol solution.
According to a further aspect in the invention, it is provided that a kind of ice-chilling air conditioning system, including Double-working-condition main frame, Ice Storage Tank, heat exchanger and air conditioning terminal；Described Double-working-condition main frame is connected with described Ice Storage Tank by the first water pipe, the second water pipe；Described heat exchanger is arranged on described second water pipe；Cold water is circulated between described heat exchanger and described air conditioning terminal；Described Double-working-condition main frame, for, under ice making operating mode, providing the refrigerating medium solution of the first preset temperature by described first water pipe to described Ice Storage Tank；Described Ice Storage Tank, for, after ice making, being exported the refrigerating medium solution of the second preset temperature by described second water pipe, wherein, described second preset temperature is higher than described first preset temperature；Described heat exchanger, for the refrigerating medium solution of described second preset temperature and described cold water are carried out heat exchange, obtains the cold water that described air conditioning terminal is temperature required.
As preferably, described ice-chilling air conditioning system also includes: catch basin, is connected with described heat exchanger, for when described air conditioning terminal does not have refrigeration demand, storing the cold water obtained by heat exchange.
As preferably, described second water pipe is additionally operable to the refrigerating medium solution after by heat exchange and is delivered to described Double-working-condition main frame.
As preferably, described refrigerating medium solution is ethylene glycol solution.
Application technical scheme, harvest cold, for be cooler than one, the cooling while that Double-working-condition main frame being under the premise of ice making, effectively utilize the refrigerating capacity (i.e. low-temperature return water) of main frame under ice making operating mode, demand for air conditioning terminal, improve system energy utilization rate, solve the energy dissipation problem of traditional control method.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, and the schematic description and description of the present invention is used for explaining the present invention, is not intended that limitation of the invention.In the accompanying drawings:
Fig. 1 is the Double-working-condition main frame of prior art operating diagram under ice making operating mode；
Fig. 2 is the Double-working-condition main frame of prior art operating diagram under cooling operating mode；
Fig. 3 is the operating diagram of the Double-working-condition main frame cold-storage cooling simultaneously of prior art；
Fig. 4 is the flow chart of the control method of the ice-chilling air conditioning system of the embodiment of the present invention；
Fig. 5 is the structural representation of the ice-chilling air conditioning system of the embodiment of the present invention；
Fig. 6 is another structural representation of the ice-chilling air conditioning system of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Embodiments providing the control method of a kind of ice-chilling air conditioning system, Fig. 4 is the flow chart of the control method of the ice-chilling air conditioning system of the embodiment of the present invention, and as shown in Figure 4, the method comprises the steps:
Step S401, Double-working-condition main frame, under ice making operating mode, provides the refrigerating medium solution of the first preset temperature by the first water pipe to Ice Storage Tank.
Step S402, after ice making, the temperature of refrigerating medium solution rises to the second preset temperature, and Ice Storage Tank exports the refrigerating medium solution of the second preset temperature by the second water pipe, wherein, the second water pipe is provided with heat exchanger, circulates cold water between heat exchanger and air conditioning terminal.
Step S403, the refrigerating medium solution of the second preset temperature and cold water carry out heat exchange by heat exchanger, obtain the cold water that air conditioning terminal is temperature required.
, confession cold by harvesting of above-described embodiment is cooler than the ice-chilling air conditioning system control method of one, the cooling while that Double-working-condition main frame being under the premise of ice making, effectively utilize the refrigerating capacity (i.e. low-temperature return water) of main frame under ice making operating mode, demand for air conditioning terminal, improve system energy utilization rate, solve the energy dissipation problem of traditional control method.
In one embodiment, said method can also include: if when ice making, air conditioning terminal does not have refrigeration demand, then by the cold water storage that obtained by heat exchange to catch basin, wherein, catch basin is connected with heat exchanger.Need the Cold water supply air conditioning terminal that catch basin can be used to store when freezing, the time required to save refrigeration.
In one embodiment, after refrigerating medium solution and the cold water of the second preset temperature carry out heat exchange by heat exchanger, said method can also include: the refrigerating medium solution after heat exchange is delivered to Double-working-condition main frame, to realize the circulation between Double-working-condition main frame and Ice Storage Tank of the refrigerating medium solution.
In one embodiment, above-mentioned refrigerating medium solution can be ethylene glycol solution.
Based on same inventive concept, the embodiment of the present invention additionally provides a kind of ice-chilling air conditioning system, it is possible to for realizing the method described by above-described embodiment.
As it is shown in figure 5, this ice-chilling air conditioning system includes: Double-working-condition main frame 51, Ice Storage Tank 52, heat exchanger 53 and air conditioning terminal 54.
Double-working-condition main frame 51 is connected with Ice Storage Tank 52 by first water pipe the 511, second water pipe 512；Heat exchanger 53 is arranged on the second water pipe 512；Cold water is circulated between heat exchanger 53 and air conditioning terminal 54.
Double-working-condition main frame 51, for, under ice making operating mode, providing the refrigerating medium solution of the first preset temperature by the first water pipe 511 to Ice Storage Tank 52.This refrigerating medium solution can be ethylene glycol solution, and this first preset temperature can be-5 DEG C.
Ice Storage Tank 52, for, after ice making, being exported the refrigerating medium solution of the second preset temperature by the second water pipe 512, wherein, the second preset temperature is higher than the first preset temperature.After Ice Storage Tank ice making, the temperature of refrigerating medium solution can raise, and this second preset temperature can be 0 DEG C.
Heat exchanger 53, for the refrigerating medium solution of the second preset temperature and cold water are carried out heat exchange, obtains the temperature required cold water of air conditioning terminal 54 (such as, 7 DEG C of chilled waters).Second preset temperature is relatively low, it is possible to using the refrigerating medium solution of the second preset temperature as low temperature cold source, carries out heat exchange with circulating water, obtains the cold water that air conditioning terminal is temperature required, thus reaching the purpose of refrigeration.
, confession cold by harvesting of above-described embodiment is cooler than the ice-chilling air conditioning system of one, the cooling while that Double-working-condition main frame being under the premise of ice making, effectively utilize the refrigerating capacity (i.e. low-temperature return water) of main frame under ice making operating mode, demand for air conditioning terminal, improve system energy utilization rate, solve the energy dissipation problem of traditional control method.
In one embodiment, as shown in Figure 6, ice-chilling air conditioning system can also include: catch basin 55, is connected with heat exchanger 53, for when air conditioning terminal 54 does not have refrigeration demand, storing the low-temperature cold water obtained by heat exchange.Need the Cold water supply air conditioning terminal 54 that catch basin 55 can be used to store when freezing, the time required to save refrigeration.Ice-chilling air conditioning system shown in Fig. 6 harvests ice, water-retention in one.
In one embodiment, the second water pipe 512 can be also used for the refrigerating medium solution after by heat exchange and is delivered to Double-working-condition main frame 51, to realize the circulation between Double-working-condition main frame 51 and Ice Storage Tank 52 of the refrigerating medium solution.
For Fig. 6, Double-working-condition main frame 51, under ice making operating mode, provides the ethylene glycol solution of about-5 DEG C to Ice Storage Tank 52, and after ice making, the temperature of ethylene glycol solution rises to about 0 DEG C.At the second water pipe 512 (also referred to as return pipe) upper installation heat exchanger 53, this low temperature cold source of ethylene glycol solution of 0 DEG C can be made full use of, being obtained the chilled water of 4 DEG C by heat exchange, store to catch basin 55, chilled water circulates in catch basin 55 and heat exchanger 53.After heat exchange, the temperature of ethylene glycol solution rises to 5 DEG C, sends back in Double-working-condition main frame 51.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiments or example.
Certainly, it is above the preferred embodiment of the present invention.It should be pointed out that, for those skilled in the art, under the premise without departing from its general principles, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (8)
1. the control method of an ice-chilling air conditioning system, it is characterised in that including:
Double-working-condition main frame, under ice making operating mode, provides the refrigerating medium solution of the first preset temperature by the first water pipe to Ice Storage Tank；
After ice making, the temperature of described refrigerating medium solution rises to the second preset temperature, and described Ice Storage Tank exports the refrigerating medium solution of described second preset temperature by the second water pipe, wherein, described second water pipe is provided with heat exchanger, between described heat exchanger and air conditioning terminal, circulates cold water；
The refrigerating medium solution of described second preset temperature and described cold water carry out heat exchange by described heat exchanger, obtain the cold water that described air conditioning terminal is temperature required.
2. method according to claim 1, it is characterised in that described method also includes:
If when ice making, described air conditioning terminal does not have refrigeration demand, then by the cold water storage that obtained by heat exchange to catch basin, wherein, described catch basin is connected with described heat exchanger.
3. method according to claim 1, it is characterised in that after refrigerating medium solution and the described cold water of described second preset temperature carry out heat exchange by described heat exchanger, described method also includes:
Refrigerating medium solution after heat exchange is delivered to described Double-working-condition main frame.
4. method according to claim 1, it is characterised in that described refrigerating medium solution is ethylene glycol solution.
5. an ice-chilling air conditioning system, it is characterised in that including: Double-working-condition main frame, Ice Storage Tank, heat exchanger and air conditioning terminal；
Described Double-working-condition main frame is connected with described Ice Storage Tank by the first water pipe, the second water pipe；Described heat exchanger is arranged on described second water pipe；Cold water is circulated between described heat exchanger and described air conditioning terminal；
Described Double-working-condition main frame, for, under ice making operating mode, providing the refrigerating medium solution of the first preset temperature by described first water pipe to described Ice Storage Tank；
Described Ice Storage Tank, for, after ice making, being exported the refrigerating medium solution of the second preset temperature by described second water pipe, wherein, described second preset temperature is higher than described first preset temperature；
Described heat exchanger, for the refrigerating medium solution of described second preset temperature and described cold water are carried out heat exchange, obtains the cold water that described air conditioning terminal is temperature required.
6. ice-chilling air conditioning system according to claim 5, it is characterised in that described ice-chilling air conditioning system also includes:
Catch basin, is connected with described heat exchanger, for when described air conditioning terminal does not have refrigeration demand, storing the cold water obtained by heat exchange.
7. ice-chilling air conditioning system according to claim 5, it is characterised in that described second water pipe is additionally operable to the refrigerating medium solution after by heat exchange and is delivered to described Double-working-condition main frame.
8. ice-chilling air conditioning system according to claim 5, it is characterised in that described refrigerating medium solution is ethylene glycol solution.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266798.3A CN105805872A (en) | 2016-04-26 | 2016-04-26 | Control method of ice storage air-conditioning system and ice storage air-conditioning system |
| CN201611121883.7A CN106524360A (en) | 2016-04-26 | 2016-04-26 | Control method of ice storage air conditioning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266798.3A CN105805872A (en) | 2016-04-26 | 2016-04-26 | Control method of ice storage air-conditioning system and ice storage air-conditioning system |
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| CN201611121883.7A Division CN106524360A (en) | 2016-04-26 | 2016-04-26 | Control method of ice storage air conditioning system |
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| CN105805872A true CN105805872A (en) | 2016-07-27 |
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| CN201610266798.3A Pending CN105805872A (en) | 2016-04-26 | 2016-04-26 | Control method of ice storage air-conditioning system and ice storage air-conditioning system |
| CN201611121883.7A Pending CN106524360A (en) | 2016-04-26 | 2016-04-26 | Control method of ice storage air conditioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108180580A (en) * | 2018-02-13 | 2018-06-19 | 南京工程学院 | It is a kind of that there is the air-conditioning system across season accumulation of energy |
| CN112665122A (en) * | 2020-12-10 | 2021-04-16 | 珠海格力电器股份有限公司 | Ice storage control method and device and ice storage air conditioner |
| CN113566398A (en) * | 2020-04-28 | 2021-10-29 | 广东美的制冷设备有限公司 | Control method of mobile air conditioner and mobile air conditioner |
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| CN106524360A (en) | 2017-03-22 |
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Application publication date: 20160727 |