CN203215892U - Tandem type cold accumulation central air-conditioning system - Google Patents
Tandem type cold accumulation central air-conditioning system Download PDFInfo
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- CN203215892U CN203215892U CN201320151782XU CN201320151782U CN203215892U CN 203215892 U CN203215892 U CN 203215892U CN 201320151782X U CN201320151782X U CN 201320151782XU CN 201320151782 U CN201320151782 U CN 201320151782U CN 203215892 U CN203215892 U CN 203215892U
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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
- 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
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Abstract
The utility model discloses a tandem type cold accumulation central air-conditioning system. The tandem type cold accumulation central air-conditioning system is characterized by comprising a water accumulator (12), a plurality of fan coils (14) and a water separator (15) which are arranged on the user side, and an ice cold accumulation system and a water cold accumulation system which are connected in series with each other and arranged on the refrigeration side. The water source of the ice cold accumulation system comes from the water cold accumulation system, and after cold discharging ends, ice-molten water returns to the water cold accumulation system for circulating. The refrigeration side exchanges cold with the user side through a plate heat exchanger (13). The tandem type cold accumulation central air-conditioning system makes full use of the load shifting of electricity and reduces the use costs of the air-conditioning system.
Description
Technical field
The utility model relates to refrigeration plant, relates in particular to a kind of tandem cold-storage central air conditioner system.
Background technology
Along with the expansion of expanding economy, city size and the change of power structure, the electric load difference is increasing round the clock for city and area power grid.The variation of power structure reduces commercial power proportion relatively, and urban life and commercial electricity consumption increase rapidly.Especially during the broiling summer, the hot weather of Chi Xuing increases the air-conditioning system power load suddenly.Because air conditioning electricity mainly concentrates on higher noon of outside air temperature and the period in the afternoon, make it originally has been load surge peak period of undaform electric load, it is not enough that peak power appears in most of urban distribution networks, and the have more than is needed situation of valley power.This ever-increasing electric load difference give power grid security, rationally and economical operation bring very burden, it is very difficult to only depend on dispatching of power netwoks to satisfy electricity needs variation round the clock.Power load adjustment by user's side realizes the electric load equilibrium, has become the task of top priority.Cold accumulation air-conditioner is exactly the strong measure of workload demand side " peak load shifting ".The application of cold-storage technology in building air-conditioning is for strengthening air conditioner energy saving, improve energy utilization rate, promoting the coordinated development of the energy, economy and environment to have considerable meaning.
The utility model content
The utility model proposes a kind of tandem cold-storage central air conditioner system, this system can make the efficient operation of Central Air conditioning Cold Storage System and power consumption is carried out peak load shifting, reduces use cost.
The technical solution adopted in the utility model is: a kind of tandem cold-storage central air conditioner system comprises: be positioned at user's side water collector, organize fan coil and water knockout drum more; Be positioned at refrigeration side ice-storage system and the chilled water storage system of connecting mutually, the water source of ice-storage system is from chilled water storage system, put the cold junction bundle after ice-melt water return the chilled water storage system circulation; Refrigeration side and user's side are carried out the cold exchange by plate type heat exchanger.
Described chilled water storage system comprises: water cold-storage main frame and water cold accumulating pond, water cold accumulating pond inside is provided with upper water distributor and lower water-dispensing device.
Described ice-storage system comprises: ice cold-storage main frame, open ice bank, the ice making heat exchanger of being located at the ice bank top and being connected with ice cold-storage main frame is located at the water-locator of ice making heat exchanger top and is located at the liquid level gauge in the ice bank outside.
Described ice-storage system adopts slide sheet type ice making mode, leaves certain space between described water storage pool top and the upper water distributor, is used for storing the needed water yield of ice-making process.
In one embodiment, also comprise first cooling tower and second cooling tower that respectively water cold-storage main frame and ice cold-storage main frame is cooled off.
Compared with prior art, the utility model has utilized the peak load shifting of electric weight well, reduces the use cost of air-conditioning system.
Description of drawings
Fig. 1 is system schematic of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in detail.
As shown in Figure 1, the tandem cold-storage central air conditioner system that the utility model proposes comprises: one of series connection cover ice-storage system and overlaps chilled water storage system mutually.Chilled water storage system is made up of water cold-storage main frame 6, water cold accumulating pond 8, lower water-dispensing device 7 and upper water distributor 9.Ice-storage system adopts slide sheet type ice making mode, is made up of ice cold-storage main frame 5, ice bank 1, liquid level gauge 2, ice making heat exchanger 3 and water-locator 4.First cooling tower 10 and second cooling tower 11 are respectively water cold-storage main frame 6 and ice cold-storage main frame 5 cools off.Central air-conditioning user side by water collector 12, organize fan coil 14 and water knockout drum 15 is formed more.Central air-conditioning refrigeration side and user's side are carried out the cold exchange by plate type heat exchanger 13, chilled water storage system is connected with ice-storage system, its discharging cold course is all undertaken by plate type heat exchanger 13, both can not put cold simultaneously, the water source of slide sheet type ice-storage system is from water cold accumulating pond 8, puts behind the cold junction bundle ice-melt water and returns water cold accumulating pond 8 and store.
Cold accumulation system generally carries out cold-storage at night, the tandem cold-storage mode that the utility model proposes, and the water process of cool is carried out earlier, ices process of cool again after the water cold-storage enters 4 ℃ of water of stable supply.Water cold-storage main frame 6 is for water cold accumulating pond 8 provides cold, and water cold accumulating pond 8 inside are provided with upper water distributor 9 and lower water-dispensing device 7.During cold-storage, Open valve V1, V3, V5 and water pump P 1, P2, other valve and water pump are all closed.The water at low temperature that makes through water cold-storage main frame 6 enters water cold accumulating pond 8 from lower water-dispensing device 7, and water cold accumulating pond 8 top high-temperature water enter water cold-storage main frame 6 from upper water distributor 9 and absorb colds and be made into water at low temperature, finish up to whole water process of cool.Ice cold-storage main frame 5 provides cold for ice bank 1, at the cold-storage initial stage, does not have water in the ice bank 1, is open system, and the needed water of ice-reserving comes from the stored water in space between water cold accumulating pond 8 tops and the upper water distributor 9.During ice-reserving, first Open valve V5, V7 and water pump P 3, other valve and water pump are all closed.At this moment, the water at low temperature that water storage pool 8 has stored is introduced ice bank 1 through water-locator 4 and ice making heat exchanger 3, when reaching, the water at low temperature of introducing sets the scale higher limit, liquid level gauge 2 interlock by-pass valve control V5 and water pump P 3 are closed, while valve V2, V8 and water pump P 1, P4 opens, make the water at low temperature that just has been incorporated in the ice bank 1 begin the ice making cyclic process, be that water at low temperature is by the effect of pump P4, through valve V8, V7 evenly is sprayed onto ice making on the ice making heat exchanger 3 from water-locator 4, treat that ice sheet reaches certain thickness, by 5 controls of ice cold-storage main frame, deice, the flake ice that makes falls into ice bank 1 and stores, along with ice-making process constantly carries out, the water level in the ice bank 1 descends gradually, sets the scale lower limit when dropping to, liquid level gauge 2 interlock by-pass valve control V5 and water pump P 3 are opened, while valve V2, V8 and water pump P 1, P4 closes, and replenishes ice-reserving institute water requirement by water storage pool 8 to ice bank 1 again, treat that the water yield satisfies after, carry out related valve again, the switchover operation of water pump is finally finished the ice-reserving process.
Discharging cold course generally carries out by day, generally carries out the water cold-storage earlier and puts coldly, after the water cold-storage is put the cold junction bundle, ices cold-storage again and puts cold.Chilled water storage system is put when cold, Open valve V4, V5 and water pump P 3, P5, and other valve and water pump are all closed.Water at low temperature enters plate type heat exchanger 13 by lower water-dispensing device 7 through pump P3 effect from water storage pool 8 bottoms, air conditioning water enters plate type heat exchanger 13 from water collector 12 through pump P5 effect and carries out heat exchange with water at low temperature, the air conditioning water that generation meets the demands feeds many group fan coils 14 through water knockout drum 15 and uses for the user, and the high-temperature water after the heat exchange returns water storage pool 8 from upper water distributor 9.Ice-storage system is put when cold, first Open valve V5, V7 and water pump P 3, and other valve and water pump are all closed.This moment the water cold-storage put behind the cold junction bundle high-temperature water in the water storage pool 8 by lower water-dispensing device 7 through pump P3 effect through water-locator 4 and ice making heat exchanger 3 introducing ice bank 1, after introducing is a certain amount of, liquid level gauge 2 interlock by-pass valve control V5, V7 and water pump P 3 are closed, while valve V6, V8 and water pump P 4, P5 opens, make the high-temperature water that just has been incorporated in the ice bank 1 melt the ice that stores before fast and begin to put cold cyclic process, be that ice-melt water enters plate type heat exchanger 13 through pump P4 effect through valve V8 from ice bank 1 bottom, air conditioning water enters plate type heat exchanger 13 from water collector 12 through pump P5 effect and carries out heat exchange with low temperature ice-melt water, the air conditioning water that generation meets the demands feeds many group fan coils 14 through water knockout drum 15 and uses for the user, high temperature ice-melt water after the heat exchange turns back to the ice bank 1 to ice-melt not from water-locator 4 through valve V6 heat is provided, make its even thawing, treat that discharging cold course finishes behind whole sheet ice-outs.After discharging cold course finishes, this moment valve-off V6 and water pump P 5, Open valve V5 simultaneously, the ice-melt water in the ice bank 1 turns back in the water storage pool 8 through water storage pool 8 bottom lower water-dispensing devices 7 by the effect of pump P4.
The utility model has not only adopted water cold-storage mode, on water cold-storage basis, also connected one the cover ice-storage system, the water cold-storage belongs to the sensible heat cold-storage, storage density of cold is little, cold-storage volume demand is big, water storage pool is generally the building ' s fire pond, volume limits, so night, paddy electricity price period water cold-storage can not belong to the latent heat cold-storage and ice cold-storage all with its utilization, storage density of cold is big, carry out cold and store so increase ice-storage system and then can take full advantage of the paddy electricity price period at night, because can be with the power consumption homogenising, i.e. peak load shifting be so have good effect to the reduction of power plant's energy consumption and the reduction of operating cost.
Claims (5)
1. tandem cold-storage central air conditioner system is characterized in that: comprise the water collector (12) that is positioned at user's side, organize fan coil (14) and water knockout drum (15) more; Be positioned at refrigeration side ice-storage system and the chilled water storage system of connecting mutually, the water source of ice-storage system is from chilled water storage system, put the cold junction bundle after ice-melt water return the chilled water storage system circulation; Refrigeration side and user's side are carried out the cold exchange by plate type heat exchanger (13).
2. tandem cold-storage central air conditioner system according to claim 1, it is characterized in that described chilled water storage system comprises: water cold-storage main frame (6) and water cold accumulating pond (8), water cold accumulating pond inside are provided with upper water distributor (9) and lower water-dispensing device (7).
3. tandem cold-storage central air conditioner system according to claim 1, it is characterized in that, described ice-storage system comprises: ice cold-storage main frame (5), open ice bank (1), the ice making heat exchanger (3) of being located at the ice bank top and being connected with ice cold-storage main frame (5), be located at the water-locator (4) of ice making heat exchanger (3) top and be located at the liquid level gauge (2) in ice bank (1) outside.
4. tandem cold-storage central air conditioner system according to claim 1, it is characterized in that: ice-storage system adopts slide sheet type ice making mode, leave certain space between described water storage pool (8) top and the upper water distributor (9), be used for storing the needed water yield of ice-making process.
5. tandem cold-storage central air conditioner system according to claim 1 is characterized in that: also comprise respectively first cooling tower (10) and second cooling tower (11) that water cold-storage main frame (6) and ice cold-storage main frame (5) are cooled off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320151782XU CN203215892U (en) | 2013-03-29 | 2013-03-29 | Tandem type cold accumulation central air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320151782XU CN203215892U (en) | 2013-03-29 | 2013-03-29 | Tandem type cold accumulation central air-conditioning system |
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| Publication Number | Publication Date |
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| CN203215892U true CN203215892U (en) | 2013-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320151782XU Expired - Lifetime CN203215892U (en) | 2013-03-29 | 2013-03-29 | Tandem type cold accumulation central air-conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534586A (en) * | 2014-12-16 | 2015-04-22 | 王天祥 | Serialized direct-evaporation-type high-efficient multi-temperature ice storing tank |
| CN108646833A (en) * | 2018-08-10 | 2018-10-12 | 北京源数科技有限公司 | Thermostat and temperature and humidity control system |
-
2013
- 2013-03-29 CN CN201320151782XU patent/CN203215892U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534586A (en) * | 2014-12-16 | 2015-04-22 | 王天祥 | Serialized direct-evaporation-type high-efficient multi-temperature ice storing tank |
| CN108646833A (en) * | 2018-08-10 | 2018-10-12 | 北京源数科技有限公司 | Thermostat and temperature and humidity control system |
| CN108646833B (en) * | 2018-08-10 | 2024-03-19 | 北京源数科技有限公司 | Constant temperature equipment and temperature and humidity control system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130925 |