CN210070117U - Dynamic energy storage and cold supply integrated refrigeration energy-saving system - Google Patents
Dynamic energy storage and cold supply integrated refrigeration energy-saving system Download PDFInfo
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- CN210070117U CN210070117U CN201920991685.9U CN201920991685U CN210070117U CN 210070117 U CN210070117 U CN 210070117U CN 201920991685 U CN201920991685 U CN 201920991685U CN 210070117 U CN210070117 U CN 210070117U
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Abstract
The utility model discloses a dynamic energy storage cooling integration refrigeration economizer system, the system is through common compression condensation module, creativity adopt two kinds of evaporimeters and two kinds of secondary refrigerant of refrigerated water and ice slurry solution on an air conditioner host computer, and supporting combined throttling arrangement and ice slurry direct heat exchange mode realize conventional refrigeration and high-efficient dynamic cold-storage cooling integration operation. The utility model discloses effectively solved present same refrigerating unit and can not realize the condition of conventional refrigeration and dynamic energy storage cooling simultaneously, helped the user to realize a tractor serves two-purpose, saved user refrigeration plant overlapping investment, improved energy storage and cooling efficiency, practiced thrift air conditioner investment and use cost for the user. Can be widely applied to the field of energy conservation of air conditioners.
Description
Technical Field
The utility model relates to a dynamic energy storage cooling integration refrigeration economizer system relates to air conditioner refrigeration energy-saving technical field.
Background
The air conditioner energy storage is applied widely at present: the main application mode is as follows:
the user adopts two different working conditions of air conditioning: conventional air-conditioning and cold-storage air-conditioning: the conventional air conditioner is used in the valley period or the flat period of the electric power, and directly provides chilled water with the temperature of 7 ℃ or above for cooling users. The cold accumulation air conditioner is used in the electric power valley period to accumulate energy, and provides cold energy for users in the electric power peak period or flat period in the daytime, and the air conditioner host is not started at the moment, so that the purposes of shifting peaks and filling valleys and saving air conditioner cost are achieved. The air conditioner using mode is economically feasible for factories and places working for 24 hours, but the following places are applied, so that the air conditioner using mode is neither economical nor energy-saving: at present, a plurality of organizations such as factories, schools, shopping malls and the like work and study on duty in the daytime, wherein 18: OO is in front of work or 24: and (4) going off duty before OO. If the conventional air-conditioning refrigeration is completely adopted in the place, the user cannot utilize the preferential policy of the peak and valley electricity price difference of the national electricity, and the air-conditioning refrigeration cost is higher. If a conventional air conditioner and cold accumulation air conditioner mode is adopted and one machine is used, the working time of starting different main machines every day is short, and the initial investment of a user is large and uneconomical. If a complete cold accumulation mode is adopted, the COP of the refrigeration host is low under the cold accumulation working condition, the time cost difference between the flat section and the valley section is not obvious, and the cold supply of the flat section after cold accumulation is not economical;
therefore, the development of a one-machine dual-purpose central air conditioner is urgently needed in the places, namely, the cold energy of the ice storage working condition is completely used for cooling in the peak time of the day, and the air conditioner host is not started at the moment; and the conventional refrigeration working condition is adopted in the flat time, so that the high-efficiency operation of the refrigeration main machine is ensured. The dual-purpose air conditioner not only ensures higher starting rate of the air conditioner main machine and saves investment cost, but also greatly improves refrigeration efficiency and saves cooling cost of users.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a dynamic energy storage cooling integration refrigeration economizer system and control method system thereof. Through the common compression condensation module, the creative air conditioner host adopts two evaporators which respectively correspond to two secondary refrigerants of chilled water and ice slurry solution, and a combined throttling device is matched to perform throttling depressurization and ice slurry direct heat exchange modes, so that conventional refrigeration and efficient dynamic cold accumulation and cold supply are realized.
The utility model adopts the technical proposal that:
a dynamic energy storage and cold supply integrated refrigeration energy-saving system comprises a compression condensation module 1, a main throttle valve 2, a bypass valve 3, an auxiliary throttle valve 19, an evaporator I5, an evaporator II17, an ice slurry energy storage tank 8 and an ice melting heat exchanger 12, and control elements of the dynamic energy storage and cold supply integrated refrigeration energy-saving system comprise a time controller 21, the bypass valve 3, an electromagnetic valve I4, an electromagnetic valve II18, a temperature sensor 10, a return water temperature sensor 22 and an ice slurry level transmitter 7.
And the main throttle valve 2, the bypass valve 3 and the auxiliary throttle valve 19 form a throttling mechanism of the refrigerating system, and the refrigerant is throttled and depressurized at the throttling mechanism.
The refrigerant may evaporate absorbing heat in evaporator I5 or evaporator II17, respectively, during different periods of time.
The refrigerant flows out of the compression and condensation module 1 and is communicated with the refrigerant liquid storage tank 20 in parallel through a pipeline.
The ice slurry solution 9 is sent to the secondary side of the evaporator I5 by the ice slurry delivery pump 6 to be cooled and then enters the ice slurry energy storage tank 8 to carry out crystal phase change energy storage.
The ice slurry solution 9 is pumped into the ice melting heat exchanger 12 by the primary side ice slurry pump 11 to absorb heat and cool.
And the backwater of the chilled water from the position B is pumped into the ice melting heat exchanger 12 by a freezing pump I13 to be cooled and then enters the chilled water separator 15 to supply cold to the outside.
And the chilled water backwater from the position C is pumped into an evaporator II17 by a refrigeration pump II16 to be cooled and then is supplied to the outside by a chilled water separator 15 to provide cold.
And an ice slurry liquid level transmitter 7 is arranged at the bottom of the ice slurry energy storage tank 8 and is used for displaying the volume change before and after ice slurry energy storage and the change of the stored energy in a columnar mode.
The utility model has the advantages that: the utility model discloses a dynamic energy storage cooling integration refrigeration economizer system and control method thereof, system pass through common compression condensation module, and a creative host computer adopts two kinds of evaporimeters, corresponds two kinds of secondary refrigerant of refrigerated water and ice thick liquid solution respectively, and supporting combined throttling arrangement throttles step-down and ice thick liquid direct heat exchange mode, realizes conventional refrigeration and high-efficient dynamic cold-storage cooling. The utility model discloses effectively solved present same refrigerating unit and can not realize the condition of conventional refrigeration and dynamic energy storage cooling simultaneously, helped the user to realize a tractor serves two-purpose, saved user refrigeration plant overlapping investment, improved energy storage and cooling efficiency, practiced thrift air conditioner investment and use cost for the user. Can be widely applied to the field of energy conservation of air conditioners.
Drawings
Fig. 1 is a schematic diagram of the dynamic energy storage and cooling integrated refrigeration energy-saving system according to the embodiment of the present invention, in the diagram:
the condensation module (1) comprises a main throttle valve (2), a bypass valve (3), an electromagnetic valve I (4), an evaporator I (5), an ice slurry conveying pump (6), an ice slurry liquid level transmitter (7), an ice slurry energy storage tank (8), an ice slurry solution (9), a temperature sensor (10), a primary side ice slurry pump (11), an ice melting heat exchanger (12), a freezing pump I (13), a flow regulating valve (14), a frozen water distributor (15), a freezing pump II (16), an evaporator II (17), an electromagnetic valve II (18), an auxiliary throttle valve (19), a refrigerant liquid storage tank (20), a time controller (21) and a return water temperature sensor (22)
The specific implementation mode is as follows:
as shown in fig. 1, the embodiment of a dynamic energy storage and cooling integrated refrigeration energy-saving system and a control method thereof includes the following specific implementation modes:
refrigeration cycle under normal working conditions: a part of liquid refrigerant from the compression condensation module 1 enters a refrigerant storage tank 20 for storage, the rest liquid refrigerant is throttled and depressurized by a main throttle valve 2 and then enters an evaporator II17 through a bypass valve 3 and an electromagnetic valve II18, the bypass valve 3 is opened at the moment, an electromagnetic valve I4 is closed, an electromagnetic valve II18 is opened, the liquid refrigerant is fully absorbed in the evaporator II17 and then enters the compression condensation module 1 after becoming gaseous, the circulation system carries out refrigeration under normal working conditions, the secondary refrigerant is chilled water passing through the secondary side of an evaporator II17, the chilled water backwater at the C is pumped into the evaporator II17 through a chilled pump II16, secondary side refrigerant is fully released and cooled, and then the chilled water of an air conditioner with the temperature of 7 ℃ and above is supplied to a user for cooling through a chilled water separator 15;
dynamic energy storage working condition refrigeration cycle: the liquid refrigerant from the compression condensation module 1 is throttled and decompressed by the main throttle valve 2, then further throttled and decompressed by the auxiliary throttle valve 19, enters the evaporator I5 through the electromagnetic valve I4, at the moment, the bypass valve 3 is closed, the electromagnetic valve I4 is opened, the electromagnetic valve II18 is closed, the liquid refrigerant is fully absorbed in the evaporator I5 and then is changed into a gas state, and then enters the compression condensation module 1, the dynamic energy storage working condition refrigeration is performed in such a circulating way, at the moment, the secondary refrigerant is the ice slurry solution 9 in the ice slurry energy storage tank 8, the ice slurry solution 9 is pumped into the secondary side of the evaporator I5 through the ice slurry conveying pump 6, the refrigerant is fully released and cooled to become fine slurry crystals, and then the fine slurry crystals enter the ice slurry energy storage tank 8 to perform phase-change type energy storage, the crystals are slurry substances, and can directly perform heat;
ice melting and cold releasing work cycle: the ice slurry solution 9 enters the ice melting heat exchanger 12 through the primary side ice slurry pump 11 to exchange cold energy at the primary side and then enters the ice slurry energy storage tank 8, so that ice melting circulation is continuously performed. The return chilled water from the position B is converged with the outlet chilled water from the flow regulating valve 14, enters the secondary side of the ice melting heat exchanger 12 through the chilling pump I13 to release heat and cool, enters the chilled water separator 15, and supplies cold to the user, so that the cooling work cycle is continuously performed, wherein the flow regulating valve 14 performs flow control through a signal provided by the return water temperature sensor 22, and the flow of the outlet chilled water from the chilled water inlet of the chilling pump I13 is regulated to ensure the return chilled water temperature required by the user.
The utility model discloses an above-mentioned embodiment, creativity adopts two kinds of evaporimeters on a host computer, corresponds two kinds of secondary refrigerant of refrigerated water and ice thick liquid solution respectively, and supporting combined throttling arrangement carries out throttle step-down and ice thick liquid direct heat exchange mode, realizes conventional refrigeration and high-efficient developments cold-storage cooling, and help the user to realize a tractor serves two purposes, saves user refrigeration plant overlapping investment, improves energy storage and cooling efficiency, practices thrift air conditioner investment and working costs for the user. Can be widely applied to the field of energy conservation of air conditioners.
The above, it is not right the utility model discloses a restriction, the utility model discloses also do not confine to above-mentioned embodiment, as long as the utility model discloses a change, modification, interpolation or replacement that make in the essential scope to reach the utility model discloses a technological effect all should belong to the utility model discloses a protection scope.
Claims (11)
1. The utility model provides a dynamic energy storage cooling integration refrigeration economizer system which characterized in that: the system comprises a compression condensation module (1), a main throttle valve (2), a bypass valve (3), an auxiliary throttle valve (19), an evaporator I (5), an evaporator II (17), an ice slurry energy storage tank (8) and an ice melting heat exchanger (12).
2. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: the system control element comprises a time controller (21), a bypass valve (3), an electromagnetic valve I (4), an electromagnetic valve II (18), a temperature sensor (10), a return water temperature sensor (22) and an ice slurry level transmitter (7).
3. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: the main throttle valve (2), the bypass valve (3) and the auxiliary throttle valve (19) form a throttling mechanism of the refrigeration system.
4. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: the refrigerant can perform an evaporation heat absorption process in the evaporator I (5) or the evaporator II (17) respectively.
5. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: the refrigerant flows out of the compression and condensation module (1) and is communicated with the refrigerant liquid storage tank (20) in parallel through a pipeline.
6. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: the ice slurry solution (9) is sent to the evaporator I (5) by an ice slurry delivery pump (6) to be cooled and then enters an ice slurry energy storage tank (8) to carry out crystal phase change energy storage.
7. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: the ice slurry solution (9) is pumped into the ice melting heat exchanger (12) by a primary side ice slurry pump (11) to carry out the heat absorption and cold discharge process.
8. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: the backwater of the chilled water from the position B is pumped into the ice melting heat exchanger (12) by a freezing pump I (13) to be cooled and then enters the chilled water separator (15) to supply cold to the outside.
9. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: the return chilled water from the position C is pumped into an evaporator II (17) by a refrigeration pump II (16) to be cooled and then is supplied with cold from a chilled water separator (15).
10. The dynamic energy storage and cooling integrated refrigeration energy-saving system as claimed in claim 2, characterized in that: the flow regulating valve (14) is controlled by a signal provided by a return water temperature sensor (22) to regulate the water flow of the outlet chilled water entering the refrigerating pump I (13).
11. The dynamic energy storage and cooling integrated refrigeration energy-saving system according to claim 1, characterized in that: an ice slurry liquid level transmitter (7) is arranged at the bottom of the ice slurry energy storage tank (8).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274332A (en) * | 2019-06-27 | 2019-09-24 | 珠海冰恬环境科技有限公司 | A kind of dynamic accumulation of energy cooling supply integration refrigeration energy conserving system and its control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274332A (en) * | 2019-06-27 | 2019-09-24 | 珠海冰恬环境科技有限公司 | A kind of dynamic accumulation of energy cooling supply integration refrigeration energy conserving system and its control method |
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