CN102538111B - Water cold accumulation air conditioning system for direct cold accumulation and mixed cold discharge and running method thereof - Google Patents
Water cold accumulation air conditioning system for direct cold accumulation and mixed cold discharge and running method thereof Download PDFInfo
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- CN102538111B CN102538111B CN201210069871XA CN201210069871A CN102538111B CN 102538111 B CN102538111 B CN 102538111B CN 201210069871X A CN201210069871X A CN 201210069871XA CN 201210069871 A CN201210069871 A CN 201210069871A CN 102538111 B CN102538111 B CN 102538111B
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Abstract
The invention belongs to the technical field of refrigeration, and discloses a water cold accumulation air conditioning system for direct cold accumulation and mixed cold discharge and a running method of the system. The system comprises a refrigeration host machine, a cold accumulation water channel, a chilled water circulating pump, a chilled water feeding pump, a cold discharge pump, a mix valve and a flow divider valve. The running method comprises the following steps of: mixing chilled water discharged out of a cold end of the cold accumulation water channel with some user return water from the flow divider valve, and feeding the mixed water to a user for discharging through the cold discharge pump and the chilled water feeding pump. According to the invention, different cold accumulation and cold discharge working conditions can be realized by controlling the turning on or off of each component of the system. The cold quantity use ratio and the clod discharge efficiency of the cold accumulation water channel can be improved by the means that the cold accumulation water channel and the refrigeration host machine synergistically discharge cold; the failure rate of related valves can be reduced by the means that the user return water is mixed with the chilled water of the cold accumulation water channel; and the use of a panel type heat exchanger is eliminated after the system provided by the invention is used, so that the cost of the whole system is reduced, and the space use ratio is improved.
Description
Technical field
The invention belongs to refrigeration technology field, and disclose a kind of water chilling air conditioning system and operation method thereof.More specifically, the invention discloses direct cold-storage and mix water chilling air conditioning system and the operation method thereof let cool.
Background technology
China's ratio of building energy consumption over the years in total energy consumption is 20% left and right, and wherein the energy consumption of HVAC accounts for 85% of building energy consumption.The energy consumption of air-conditioning embodies obvious seasonality, and the electric load peak valley of building annual and every day is distributed and plays decisive role.HVAC rationally moves in conjunction with energy accumulating technique, night cold-storage, the peak phase on daytime lets cool, and is the effective means that realizes network load " peak load shifting ", cooperatively interacting of time-of-use tariffs policy and energy accumulating technique is the effective way that air conditioner user is saved energy consumption cost.
Comparatively ripe and corresponding commercial-scale Cool Storage Technology is arranged is mainly water cold-storage and ice storage technology at present, the water Cool Storage Technology is because its structure is relative simple with operation, air-conditioner host, without specific (special) requirements, is suitable for to the transformation of existing air-conditioning system, therefore obtains the extensive favor of industry.
The combining operation mode of chilled water storage system and air-conditioner host directly has influence on efficiency and the cold-storage ability of main frame, has also determined to meet the controllability of customer charge demand simultaneously.There are various ways in current chilled water storage system and central air-conditioning cooperation, process of cool or adopt while to the user, providing cold the case of plate type heat exchanger to have a lot, although plate type heat exchanger can guarantee security, reliability and the modulability of associated pipe electrically operated valve, reduce the maintenance rate of pipe valve,, when but plate type heat exchanger has reduced cold-storage or cooling efficiency, increased taking of equipment investment and space.For the system that does not adopt plate type heat exchanger, the pressure reduction that the motor-driven valve of cold-storage tank hot junction entrance bears is larger, the variation of load require electrically operated valve have higher sensitivity and faster respond regulated, so the fault of electric actuator rate of valve is higher.And existing system can't be applicable to the situation of low temperature machine and middle temperature machine simultaneously, limited according to customer charge and regulated the chilled water water temperature.
Summary of the invention
The technical problem to be solved in the present invention is, reduced cold-storage or let cool efficiency and increased equipment investment and space hold, the high and defect that can't simultaneously be suitable for low temperature machine and middle temperature machine of motor-driven valve fault rate while not adopting plate type heat exchanger for the available technology adopting plate type heat exchanger, cold-storage being provided or letting cool that efficiency is high, equipment cost is low, space availability ratio is high, the failsafe valve rate is low and low temperature machine and middle temperature machine all are applicable to the direct cold-storage of refrigeration host computer and water chilling air conditioning system and the operation method thereof that mixing lets cool.
The present invention solves its technical problem and is achieved by the following technical programs: according to an aspect of the present invention, direct cold-storage be provided and mix the water chilling air conditioning system let cool, comprising refrigeration host computer, cold-storage tank, chilled water circulating pump, chilled water supply pump, let cool pump, the first stop valve, the second stop valve and the 3rd stop valve; The outlet of described chilled water circulating pump is connected with the entrance of described refrigeration host computer through described the first stop valve, and entrance, another road that the outlet of described refrigeration host computer road after described the second stop valve connects described chilled water supply pump connect the cold junction of described cold-storage tank through described the 3rd stop valve; The hot junction of described cold-storage tank connects the entrance of described chilled water circulating pump, the cold junction of described cold-storage tank also is provided with to mix and lets cool bypass, described mixing lets cool bypass and is provided with the described pump that lets cool, and the described delivery side of pump that lets cool is connected with the entrance of described chilled water supply pump
Wherein, described mixing lets cool in bypass and also is provided with mixing valve, described mixing valve is connected with flow divider, the entrance of described flow divider connects the water collection tank that stores user's backwater, the outlet of described mixing valve is connected with the described entrance that lets cool pump, the entrance of described mixing valve is connected with the first outlet of the cold junction of described cold-storage tank and described flow divider respectively, with the chilled water that mixes described cold-storage tank release and the part of described user's backwater, forms the mixed freezing water of user's cooling.
At above-mentioned direct cold-storage with in mixing the water chilling air conditioning system let cool, the second outlet of described flow divider is connected with the entrance of described chilled water circulating pump (3) with the hot junction of described cold-storage tank respectively.
At above-mentioned direct cold-storage with in mixing the water chilling air conditioning system let cool, described refrigeration host computer comprises at least two cooling-water machines, between described at least two cooling-water machines, is provided with at least one control valve.
According to a further aspect in the invention, the operation method of the water chilling air conditioning system that provides direct cold-storage and mixing to let cool, wherein, described operation method comprises refrigeration host computer charging and cold-storage tank mixing discharging; Wherein,
Described refrigeration host computer charging comprises: close chilled water supply pump, flow divider, mixing valve and let cool pump, open chilled water circulating pump, refrigeration host computer, cold-storage tank, the first stop valve, the second stop valve and the 3rd stop valve, described refrigeration host computer provides chilled water through described the second stop valve and described the 3rd stop valve to described cold-storage tank;
Described cold-storage tank mixing discharging comprises: close described chilled water circulating pump, described refrigeration host computer, described the first stop valve, described the second stop valve and described the 3rd stop valve, open described cold-storage tank, described chilled water supply pump, described flow divider, described mixing valve and the described pump that lets cool, the chilled water that the cold junction of described cold-storage tank is emitted with form mixed freezing water after the part of user's backwater from described flow divider is mixed, described mixed freezing water lets cool pump and described chilled water supply pump is user's cooling through described.
At above-mentioned direct cold-storage with mix in the operation method of the water chilling air conditioning system let cool, in described cold-storage tank mixing discharging, enter the hot junction of described cold-storage tank from another part of user's backwater of described flow divider.
At above-mentioned direct cold-storage with in mixing the operation method of the water chilling air conditioning system let cool, described operation method also comprises cold-storage tank and refrigeration host computer associating discharging: close described the 3rd stop valve; Described mixed freezing current mix with the chilled water from described refrigeration host computer through the described pump that lets cool, and through described chilled water supply pump, are then user's cooling.
At above-mentioned direct cold-storage with in mixing the operation method of the water chilling air conditioning system let cool, in described cold-storage tank and refrigeration host computer associating discharging, from another part of user's backwater of described flow divider, enter respectively the hot junction of described cold-storage tank and enter described refrigeration host computer through described chilled water circulating pump.
At above-mentioned direct cold-storage with in mixing the operation method of the water chilling air conditioning system let cool, described operation method also comprises refrigeration host computer cold-storage discharging: close described flow divider, described mixing valve and the described pump that lets cool, open chilled water circulating pump, refrigeration host computer, cold-storage tank, chilled water supply pump, the first stop valve, the second stop valve and the 3rd stop valve, the chilled water of described refrigeration host computer output provides chilled water and is user's cooling through described chilled water supply pump to described cold-storage tank through described the second stop valve and described the 3rd stop valve respectively.
At above-mentioned direct cold-storage with in mixing the operation method of the water chilling air conditioning system let cool, in described refrigeration host computer cold-storage discharging, from another part of user's backwater of described flow divider and the hot junction water outlet of described cold-storage tank, jointly through described chilled water circulating pump, enter described refrigeration host computer.
At above-mentioned direct cold-storage with in mixing the operation method of the water chilling air conditioning system let cool, described operation method also comprises the refrigeration host computer discharging: close described cold-storage tank, the 3rd stop valve, mixing valve and let cool pump, open described refrigeration host computer, chilled water circulating pump, chilled water supply pump, flow divider, the first stop valve and the second stop valve, the chilled water of described refrigeration host computer output is user's cooling through described chilled water supply pump, from user's backwater of described flow divider, through described chilled water circulating pump, enters described refrigeration host computer.
Implement the present invention and can obtain following beneficial effect: (1) works in coordination with the cooling into the user by cold-storage tank and refrigeration host computer, but the amount of letting cool of reasonable distribution refrigeration host computer and cold-storage tank, thus improve the cryogenic energy utilization rate of cold-storage tank and let cool efficiency; (2) the mode cooling that adopts user's backwater to mix with cold-storage tank chilled water not only can be realized and letting cool that customer charge is more mated, and can make the pressure differential in cold-storage tank hot junction effectively reduce, and then the fault rate of reduction related valve, the operation and maintenance cost of system is effectively controlled; (3) system of the present invention has been cancelled plate type heat exchanger when having improved cold-storage and having let cool efficiency, thereby has reduced the cost of whole system and improved space availability ratio.Water chilling air conditioning system efficiency of the present invention is high, flexibility is high and cost is low; System operation method of the present invention is implemented conveniently, moves simple and effective.
The accompanying drawing explanation
Below with reference to the drawings and specific embodiments, the present invention is described in further detail.In accompanying drawing:
Fig. 1 is according to direct cold-storage of the present invention and the structural representation that mixes the water chilling air conditioning system let cool;
Fig. 2 is according to cold-storage tank mixing discharging schematic diagram of the present invention;
Fig. 3 is according to refrigeration host computer charging schematic diagram of the present invention;
Fig. 4 is according to cold-storage tank of the present invention and refrigeration host computer associating discharging schematic diagram;
Fig. 5 is according to refrigeration host computer cold-storage discharging schematic diagram of the present invention; And
Fig. 6 is according to refrigeration host computer discharging schematic diagram of the present invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, Fig. 1 is according to direct cold-storage of the present invention and the structural representation that mixes the water chilling air conditioning system let cool.This system comprises refrigeration host computer 1, cold-storage tank 2, chilled water circulating pump 3, chilled water supply pump 4, lets cool pump 5, the first stop valve V1, the second stop valve V2 and the 3rd stop valve V3; The outlet of chilled water circulating pump 3 is connected with the entrance of refrigeration host computer 1 through the first stop valve V1, and the outlet of refrigeration host computer 1 connects the entrance of chilled water supply pump 4, the cold junction that another Lu Jingdi tri-stop valve V3 connect cold-storage tank 2 through the second stop valve V2Hou mono-tunnel; The hot junction of cold-storage tank 2 connects the entrance of chilled water circulating pump 3, and the cold junction of cold-storage tank 2 also is provided with to mix and lets cool bypass, and this mixing lets cool bypass and is provided with and lets cool pump 5, and the outlet that lets cool pump 5 is connected with the entrance of chilled water supply pump 4.According to the present invention, this mixing lets cool in bypass and also is provided with mixing valve 6, mixing valve 6 is connected with flow divider 7, the entrance of flow divider 7 is connected with the water collection tank of stored user backwater, the outlet of mixing valve 6 is connected with the entrance that lets cool pump 5, the entrance of mixing valve 6 is connected with the cold junction of cold-storage tank 2 and the first outlet of flow divider 7 respectively, with the chilled water of mixing cold-storage tank 2 releases and the part of user's backwater, forms the mixed freezing water of user's cooling.
Here path refrigeration host computer 1, the second stop valve V2, the 3rd stop valve V3 and cold-storage tank 2 formed is called the cold-storage bypass.Be that the cold junction of cold-storage tank 2 is divided into cold-storage bypass L1 and mixing lets cool bypass L2.Cold-storage tank 2 of the present invention is preferably used natural layering cold-storage tank.
In the present invention, water chilling air conditioning system as shown in Figure 1 can be realized direct cold-storage.For example, by refrigeration host computer 1, for cold-storage tank 2, provide chilled water, or for cold-storage tank 2, provide chilled water and while to user's cooling by refrigeration host computer 1.Water chilling air conditioning system as shown in Figure 1 can be realized mixing and let cool.For example, the chilled water that cold-storage tank 2 cold junctions are emitted mixes the rear line cooling with the part of the user's backwater from flow divider 7, the chilled water that perhaps cold junction of cold-storage tank 2 is emitted mixes with the user's backwater from flow divider 7 and lets cool pump by 5 and mix with the chilled water from refrigeration host computer 1, then to user's cooling.In addition, water chilling air conditioning system as shown in Figure 1 can be realized directly letting cool.For example, by refrigeration host computer 1, chilled water is offered to the user, thereby realize letting cool.Above various working can make chilled water storage system of the present invention adapt to different customer charge requirements, significantly improves cold-storage and lets cool efficiency, strengthens the flexibility of system of the present invention.
In addition, the second outlet of flow divider 7 also is connected with the entrance of chilled water circulating pump 3 with the hot junction of cold-storage tank 2 respectively, its role is to, in the situation that letting cool, cold-storage tank 2 or refrigeration host computer 1 adopt user's backwater to be respectively cold-storage tank and the supplementary appropriate water of refrigeration host computer, the water balance in keeping system.Below describe flow divider 7 outputs in detail in each concrete operating mode user's backwater water balance in keeping system how.
In Fig. 1, refrigeration host computer 1 is comprised of two cooling-water machines 11 and 12.Compared with prior art, another advantage of the present invention is, also at least one control valve can be set between the cooling-water machine of composition refrigeration host computer 1, for example the control valve V4 shown in Fig. 1.Setting by control valve can make above-mentioned cooling-water machine realize series, parallel or series-parallel method of operation, strengthens the controllability of refrigeration host computer.The more important thing is, many (for example two) cooling-water machines of the refrigeration host computer arranged like this can be all that the low temperature machine can be maybe the reasonably combined of low temperature machine and middle temperature machine.Should be appreciated that, the present invention does not limit the quantity of the cooling-water machine that forms refrigeration host computer, lets cool under the prerequisite of efficiency meeting cost, space and cold-storage, and those skilled in the art can select according to actual conditions the cooling-water machine of arbitrary quantity, arbitrary type.
Describe direct cold-storage of the present invention and the operation method that mixes the water chilling air conditioning system let cool in detail below in conjunction with accompanying drawing 2-6.
With reference to figure 2, Fig. 2 is according to cold-storage tank mixing discharging schematic diagram of the present invention.Now refrigeration unit is out of service, and chilled water circulating valve, refrigeration host computer, the first stop valve, the second stop valve and the 3rd stop valve are all closed; Cold-storage tank 2 lets cool bypass L2 to user's cooling through mixing.The cold junction of cold-storage tank 2 lets cool, the part of the chilled water of emitting and user's backwater from flow divider 7 is mixed mixing valve 6 is interior, form mixed freezing water, mixed freezing water is through letting cool pump 5 and chilled water supply pump 4 to user's cooling, another part of user's backwater enters the hot junction of cold-storage tank 2 by another outlet of flow divider 7 simultaneously, with the water balance environment of keeping system.
Compared with prior art, the shunting by user's backwater has reduced the pressure differential that bear at electrically operated valve two ends, cold-storage tank hot junction to a certain extent, has guaranteed the security of respective valves operation and the flexibility of adjusting.In addition, this mixing lets cool mode and can realize according to user's request meeting letting cool of customer charge requirement under energy saving condition.
With reference to figure 3, Fig. 3 is according to refrigeration host computer charging schematic diagram of the present invention.Now refrigeration host computer 1 provides chilled water through cold-storage bypass L1 to cold-storage tank 2.Particularly, chilled water supply valve, flow divider, mixing valve and let cool valve and all close; The chilled water that refrigeration host computer 1 produces is flowed through successively after the second stop valve V2 and the 3rd stop valve V3 and is entered the cold junction of cold-storage tank 2.Simultaneously, the 1 hot junction water outlet of cold-storage tank enters refrigeration host computer 1 through chilled water circulating pump 3.
Owing to having avoided the use plate type heat exchanger in system of the present invention, therefore above-mentioned process of cool chilled water is without passing through heat exchanger, and energy consumption is down to minimum.In fact, due to plateless heat exchanger in system, the energy consumption of discharging cold course also is effectively controlled.System effectiveness is improved on the whole.
With reference to figure 4, Fig. 4 is according to cold-storage tank of the present invention and refrigeration host computer associating discharging schematic diagram.The now cold-storage bypass of cold accumulation system is closed, and closes the 3rd stop valve V3.The chilled water that the cold junction of cold-storage tank 2 is emitted is mixed to form mixed freezing water with the part from user's backwater of flow divider 7 in mixing valve 6, these mixed freezing current mix with the chilled water from refrigeration host computer 1 after letting cool pump 5, then through chilled water supply pump 4 to user's cooling.It should be noted, mixed freezing water and the burden requirement that must reach the user after the chilled water of refrigeration host computer 1 mixes.This can realize by the control to flow divider 7.
Meanwhile, except the part of user's backwater of water collection tank 8 interior storages, with the chilled water of cold-storage water tank 2 mixes, another part of the user's backwater stored in it enters respectively hot junction and the refrigeration host computer 1 of cold-storage tank 2.Wherein, for guaranteeing the balance of each parts of whole system, user's backwater of the chilled water equivalent provided with refrigeration host computer 1 is got back to refrigeration host computer 1 through chilled water circulating pump 3, user's backwater of remaining part enters the hot junction of cold-storage tank 2, and this part amount of getting back to user's backwater in cold-storage tank 2 hot junctions equals the amount of the chilled water that cold-storage tank 2 cold junctions emit.
Adopt cold-storage tank and refrigeration host computer to combine another embodiment that the mode let cool is flexibility of the present invention.But the amount of letting cool of reasonable distribution refrigeration host computer and cold-storage tank, improve the cryogenic energy utilization rate of cold-storage tank and let cool efficiency in this way, farthest to realize " peak load shifting " electricity consumption, save operating cost.
With reference to figure 5, Fig. 5 is according to refrigeration host computer cold-storage discharging schematic diagram of the present invention.Now close mixing and let cool bypass and flow divider, close mixing valve and let cool valve and flow divider.The chilled water of refrigeration host computer 1 output is divided into two branch roads, Zhi Luxiang user's cooling, and another branch road provides chilled water through cold-storage bypass L1 to cold-storage tank 2.Simultaneously, the hot junction water outlet of cold-storage tank 2 and together through chilled water circulating pump 3, enter refrigeration host computer 1 from another part of user's backwater of flow divider 7.Now correspondence is opened chilled water circulating pump 3, refrigeration host computer 1, cold-storage tank 2, chilled water supply pump 4, the first stop valve V1, the second stop valve V2 and the 3rd stop valve V3.
With reference to figure 6, Fig. 6 is according to refrigeration host computer discharging schematic diagram of the present invention.Now the cold-storage tank is out of service, the 3rd stop valve, mixing valve and let cool valve and all close, the chilled water of refrigeration host computer 1 output directly offers the user through chilled water supply pump 4, and the user's backwater in water collection tank 8 is all got back to refrigeration host computer 1 through chilled water circulating pump 3 simultaneously.
The exemplary method of operation that Fig. 2-6 are water chilling air conditioning system of the present invention.From above-mentioned concrete example, can find out, system of the present invention is applicable to multiple customer charge demand.For example, require when high to adopt cold-storage tank and refrigeration host computer air conditioning when the amount of letting cool; When the amount of letting cool requires when low to adopt the refrigeration host computer cold-storage to let cool or the cold-storage tank lets cool.This flexibility and controllability just in time meet desirable " peak load shifting " electricity consumption at present, having guaranteed the system cold-storage and having let cool the comprehensive effect that can further improve system under the prerequisite of efficiency, operating cost are effectively controlled.
In sum, the present invention has the following advantages: (1) works in coordination with the cooling into the user by cold-storage tank and refrigeration host computer, but the amount of letting cool of reasonable distribution refrigeration host computer and cold-storage tank, thus improve the cryogenic energy utilization rate of cold-storage tank and let cool efficiency; (2) the mode cooling that adopts user's backwater to mix with cold-storage tank chilled water not only can be realized and letting cool that customer charge is more mated, and can make the pressure differential in cold-storage tank hot junction effectively reduce, and then the fault rate of reduction related valve, the operation and maintenance cost of system is effectively controlled; (3) system of the present invention has been cancelled plate type heat exchanger when having improved cold-storage and having let cool efficiency, thereby has reduced the cost of whole system and improved space availability ratio.Water chilling air conditioning system efficiency of the present invention is high, flexibility is high and cost is low; System operation method of the present invention is implemented conveniently, moves simple and effective.
Claims (10)
1. the water chilling air conditioning system that directly cold-storage and mixing let cool, comprise refrigeration host computer (1), cold-storage tank (2), chilled water circulating pump (3), chilled water supply pump (4), let cool pump (5), the first stop valve V1, the second stop valve V2 and the 3rd stop valve V3; The outlet of described chilled water circulating pump (3) is connected with the entrance of described refrigeration host computer (1) through described the first stop valve V1, and the outlet of described refrigeration host computer (1) connects described chilled water supply pump (4) entrance, another road through described the second stop valve V2Hou mono-tunnel connect the cold junction of described cold-storage tank (2) through described the 3rd stop valve V3; The hot junction of described cold-storage tank (2) connects the entrance of described chilled water circulating pump (3), the cold junction of described cold-storage tank (2) also is provided with to mix and lets cool bypass, described mixing lets cool bypass and is provided with the described pump (5) that lets cool, the described outlet that lets cool pump (5) is connected with the entrance of described chilled water supply pump (4)
It is characterized in that, described mixing lets cool in bypass and also is provided with mixing valve (6), described mixing valve (6) is connected with flow divider (7), the entrance of described flow divider (7) connects the water collection tank (8) that stores user's backwater, the outlet of described mixing valve (6) is connected with the described entrance that lets cool pump (5), the entrance of described mixing valve (6) is connected with the cold junction of described cold-storage tank (2) and the first outlet of described flow divider (7) respectively, to mix chilled water that described cold-storage tank (2) discharges and the part of described user's backwater, form the mixed freezing water of user's cooling.
2. the water chilling air conditioning system that direct cold-storage according to claim 1 and mixing let cool, is characterized in that, the second outlet of described flow divider (7) is connected with the entrance of described chilled water circulating pump (3) with the hot junction of described cold-storage tank (2) respectively.
3. the water chilling air conditioning system that direct cold-storage according to claim 1 and 2 and mixing let cool is characterized in that described refrigeration host computer (1) comprises at least two cooling-water machines, is provided with at least one control valve V4 between described at least two cooling-water machines.
4. the operation method of the water chilling air conditioning system that directly cold-storage and mixing let cool is characterized in that described operation method comprises refrigeration host computer charging and cold-storage tank mixing discharging; Wherein,
Described refrigeration host computer charging comprises: close chilled water supply pump (4), flow divider (7), mixing valve (6) and let cool pump (5), open chilled water circulating pump (3), refrigeration host computer (1), cold-storage tank (2), the first stop valve V1, the second stop valve V2 and the 3rd stop valve V3, described refrigeration host computer (1) provides chilled water through described the second stop valve V2 and described the 3rd stop valve V3 to described cold-storage tank (2);
Described cold-storage tank mixing discharging comprises: close described chilled water circulating pump (3), described refrigeration host computer (1), described the first stop valve V1, described the second stop valve V2 and described the 3rd stop valve V3, open described cold-storage tank (2), described chilled water supply pump (4), described flow divider (7), described mixing valve (6) and the described pump (5) that lets cool, the chilled water that the cold junction of described cold-storage tank (2) is emitted with form mixed freezing water after the part of user's backwater from described flow divider (7) is mixed, described mixed freezing water lets cool pump (5) and described chilled water supply pump (4) is user's cooling through described.
5. the operation method of the water chilling air conditioning system that direct cold-storage according to claim 4 and mixing let cool, it is characterized in that, in described cold-storage tank mixing discharging, enter the hot junction of described cold-storage tank (2) from another part of user's backwater of described flow divider (7).
6. according to the described direct cold-storage of claim 4 or 5 and the operation method that mixes the water chilling air conditioning system let cool, it is characterized in that, described operation method also comprises cold-storage tank and refrigeration host computer associating discharging: close described the 3rd stop valve V3; Described mixed freezing current mix with the chilled water from described refrigeration host computer (1) after letting cool pump (5) through described, through described chilled water supply pump (4), are then user's cooling.
7. the operation method of the water chilling air conditioning system that direct cold-storage according to claim 6 and mixing let cool,
It is characterized in that, in described cold-storage tank and refrigeration host computer associating discharging, from another part of user's backwater of described flow divider (7), enter respectively the hot junction of described cold-storage tank (2) and enter described refrigeration host computer (1) through described chilled water circulating pump (3).
8. according to the described direct cold-storage of claim 4 or 5 and the operation method that mixes the water chilling air conditioning system let cool, it is characterized in that, described operation method also comprises refrigeration host computer cold-storage discharging: close described flow divider (7), described mixing valve (6) and the described pump (5) that lets cool, open described chilled water circulating pump (3), described refrigeration host computer (1), described cold-storage tank (2), described chilled water supply pump (4), described the first stop valve V1, described the second stop valve V2 and described the 3rd stop valve V3, the chilled water of described refrigeration host computer (1) output provides chilled water and is user's cooling through described chilled water supply pump (4) to described cold-storage tank (2) through described the second stop valve V2 and described the 3rd stop valve V3 respectively.
9. the operation method of the water chilling air conditioning system that direct cold-storage according to claim 8 and mixing let cool, it is characterized in that, in described refrigeration host computer cold-storage discharging, from another part of user's backwater of described flow divider (7) and the hot junction water outlet of described cold-storage tank (2), jointly through described chilled water circulating pump (3), enter described refrigeration host computer.
10. according to the described direct cold-storage of claim 4 or 5 and the operation method that mixes the water chilling air conditioning system let cool, it is characterized in that, described operation method also comprises the refrigeration host computer discharging: close described cold-storage tank (2), the 3rd stop valve V3, mixing valve (6) and let cool pump (5), open described refrigeration host computer (1), chilled water circulating pump (3), chilled water supply pump (4), flow divider (7), the first stop valve V1 and the second stop valve V2, the chilled water of described refrigeration host computer (1) output is user's cooling through described chilled water supply pump (4), user's backwater from described flow divider (7) enters described refrigeration host computer (1) through described chilled water circulating pump (3).
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| CN106500216A (en) * | 2016-11-07 | 2017-03-15 | 深圳市奥宇节能技术股份有限公司 | A kind of water cold storage central air conditioner system and optimal control method |
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| CN107477735A (en) * | 2017-07-21 | 2017-12-15 | 深圳达实智能股份有限公司 | Chilled water storage system |
| CN109539434A (en) * | 2018-10-29 | 2019-03-29 | 珠海格力电器股份有限公司 | A kind of ice-chilling air conditioning system and its control method |
| CN109945364A (en) * | 2019-03-25 | 2019-06-28 | 珠海格力电器股份有限公司 | Air-conditioning and its control method |
| CN112178846A (en) * | 2020-09-24 | 2021-01-05 | 北京佩尔优能源科技有限公司 | Air conditioning system and control method thereof |
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| JP2855954B2 (en) * | 1992-05-06 | 1999-02-10 | 三菱電機株式会社 | Thermal storage type air conditioner |
| CN100516675C (en) * | 2007-06-22 | 2009-07-22 | 广州贝龙环保热力设备股份有限公司 | Direct cool water supply cool-storage air conditioner system and its operation method |
| CN102345910B (en) * | 2010-08-06 | 2013-12-25 | 同方节能工程技术有限公司 | Water cool storage air conditioning system with indirect cool storage |
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2012
- 2012-03-16 CN CN201210069871XA patent/CN102538111B/en active Active
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