CN103234250B - A kind of water cool-storage technology system and operation method thereof - Google Patents
A kind of water cool-storage technology system and operation method thereof Download PDFInfo
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- CN103234250B CN103234250B CN201310179662.5A CN201310179662A CN103234250B CN 103234250 B CN103234250 B CN 103234250B CN 201310179662 A CN201310179662 A CN 201310179662A CN 103234250 B CN103234250 B CN 103234250B
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- 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
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Abstract
The present invention discloses a kind of water cool-storage technology system, comprise refrigeration machine, cold-storage tank, air conditioning terminal, circulating pump group and some valves, circulating pump group is arranged on the exit of refrigeration machine, chilled water can be pumped into cold-storage tank to carry out cold-storage and be pumped into air conditioning terminal carrying out cooling, and connected by branch road and the chilled water in cold-storage tank can be pumped into air conditioning terminal and carry out cooling, adopt water cool-storage technology system as above, by realizing air-conditioning system charging to the adjustment of each valve switch state, the independent cooling operating mode of refrigeration machine, the independent cooling operating mode of cold-storage tank, walk abreast operating mode and refrigeration machine cooling and cold-storage tank cooling of refrigeration machine cooling and cold-storage walks abreast the running of operating mode, state in realization in the process of each operating mode and only adopt same circulating pump group, temperature sensor is provided with for detecting temperature everywhere in above-mentioned water cool-storage technology system, convenient adjustment.
Description
Technical field
The present invention relates to a kind of air-conditioning system, particularly relate to a kind of water cool-storage technology system and operation method thereof.
Background technology
Water cold storage technology utilizes electricity price between peak and valley, is stored in water at low ebb rate period by cold, uses the cryogenic freezing water extraction stored cold for idle call in the peak of power consumption period.When air-conditioning service time and non-air-conditioning service time and electrical network peak and low ebb synchronous time, use when just the idle call electricity in electrical network rush hour can be transferred to electrical network low ebb, reach the object of power cost saving.It is little, reliable that it has investment, and good refrigeration effect, the obvious feature of economic benefit, so water cold storage technology has wide development space and application prospect.
Chinese patent literature CN102620365A discloses a kind of supplying cold directly formula water cool-storage technology system, comprise refrigeration host computer 1, cold-storage tank 2, cold-storage pump 3, cooling pump 4, air conditioning terminal 5 and bypass line 6, the import of refrigeration host computer 1 is connected with the outlet of cold-storage pump 3, the outlet of described refrigeration host computer 1 to be connected with motor-driven valve F2 by pipeline and after motor-driven valve F2, to be divided into two branch roads, article one, branch road is air conditioning terminal 5 branch road, another branch road is cold-storage tank 2 branch road, air conditioning terminal 5, cold-storage tank 2 is all connected with the inlet ductwork of cold-storage pump 3, the inlet ductwork of cold-storage pump 3 is provided with electric control valve V6, described air conditioning terminal branch road also and connect bypass pipe 6, bypass pipe 6 is provided with electric control valve V5(as shown in Figure 1).The operation method of supplying cold directly formula water cool-storage technology system is also disclosed in invention.By designing a kind of supplying cold directly formula water cool-storage technology system and operation method thereof, reduce the return water temperature of refrigeration unit, make refrigeration unit be offloaded to best efficiency to run, reach the object improving chiller efficiency, energy overall improved system efficiency, utilize water cold accumulation device institute cold storage capacity completely, at utmost reduce operating cost.
But in above-mentioned patent document, the process realizing cold-storage and refrigeration realizes respectively by cold-storage pump and refrigeration pump, cold-storage pump is used during cold-storage, now cooling pump is in halted state, and during cooling, use cooling pump, cold-storage pump is in halted state again, and this design makes cold-storage pump and cooling pump all can not get sufficient utilization; And need especially when refrigeration host computer and cold-storage tank air conditioning to start cold-storage pump and cooling pump simultaneously, run while two pumps and improve energy consumption, therefore this air-conditioning system can not make full use of being in water pump for a long time or start the state wasted energy simultaneously, and for cold-storage and refrigeration provide water pump to add the investment of system in water pump respectively.
Summary of the invention
The technical problem that the present invention solves is: for the problems referred to above in order to improve the utilization rate of water pump, reduces the investment of water pump, designs a kind of supplying cold directly formula water cool-storage technology system adopting a pump or multiple stage pump simultaneously to realize the various working such as cold-storage, cooling.
For reaching this object, the present invention by the following technical solutions:
A kind of water cool-storage technology system, comprise refrigeration machine, cold-storage tank, air conditioning terminal, control module, circulating pump group, described control module is electrically connected described refrigeration machine and circulating pump group, the exit of described refrigeration machine is provided with the second stop valve, the outlet of described second stop valve connects two branch roads, article one, branch road is connected with the first stop valve and cold-storage tank in turn, another branch road connects the import of circulating pump group;
The outlet of described circulating pump group is divided into two branch roads;
Article one, branch road is connected with the first control valve and cold-storage tank in turn, described cold-storage tank is provided with low import and export and high import and export, the one end connecting described first control valve is low import and export, and described height is imported and exported and taken back described refrigeration machine;
Another branch road connects the second control valve and air conditioning terminal successively, and described air conditioning terminal outlet takes back described refrigeration machine.
As the preferred technical scheme of one, the exit of described refrigeration machine is provided with three-temperature sensor, is provided with the 5th temperature sensor between the first stop valve and the low import and export of cold-storage tank, cold-storage tank height import and export is provided with the 4th temperature sensor, the import department of air conditioning terminal is provided with the first temperature sensor, the exit of air conditioning terminal is provided with the second temperature sensor.
As the preferred technical scheme of one, described first stop valve, the second stop valve, the first control valve, the second control valve and the first temperature sensor, the second temperature sensor, three-temperature sensor, the 4th temperature sensor, the 5th temperature sensor are all electrically connected control module.
Control module is used for collection and the process of temperature signal, by the state of the multilevel iudge air-conditioning system each several part to real time temperature signal and setting value, thus transmit control signal and to control to valve and refrigeration machine, circulating pump group, realize the automatic adjustment of each operating mode of air-conditioning system.
As the preferred technical scheme of one, in described circulating pump group, include at least one circulating pump.
As the preferred technical scheme of one, be parallel relationship between circulating pump when existence two and above circulating pump in described circulating pump group.
The quantity of circulating pump is determined by the operational mode of cooling needs and system, can set up spare circulating pump simultaneously and break down to prevent circulating pump, and impact uses.
As the preferred technical scheme of one, be also connected with pressure relief pipe between the import of described air conditioning terminal and outlet, described pressure relief pipe be provided with the 3rd control valve.
An operation method for water cool-storage technology system, comprises the following steps:
Steps A, provide water cool-storage technology system as above;
Step B, air conditioning terminal send cooling instruction, and control module receives cooling signal;
Step C, control module judge whether cold-storage tank participates in cooling, if cold-storage tank participates in cooling, enter step D, if cold-storage tank does not participate in cooling, enter step e;
Step D, control module control the first stop valve, the second control valve is opened, and cold-storage tank, circulating pump group, air conditioning terminal form path, realize cold-storage tank and carry out cooling to air conditioning terminal;
Step e, control module control the first stop valve and close, and the second stop valve, the second control valve are opened, and refrigeration machine, circulating pump group, air conditioning terminal form path, realize refrigeration machine and carry out cooling to air conditioning terminal.
Further, described step D comprises:
Step D1, control module judge whether to need cold-storage tank and refrigeration machine to participate in cooling simultaneously, and if desired cold-storage tank and refrigeration machine participate in cooling simultaneously and then carry out step D2, if do not need cold-storage tank and refrigeration machine to participate in cooling simultaneously, enter step D3;
Step D2, control module control the first stop valve, the second stop valve, the second control valve unlatching, cold-storage tank, circulating pump group, air conditioning terminal form path, realize cold-storage tank and cooling is carried out to air conditioning terminal, refrigeration machine, circulating pump group, air conditioning terminal form path simultaneously, realize refrigeration machine and carry out cooling to air conditioning terminal;
Step D3, control module control the first stop valve, the second control valve is opened, and cold-storage tank, circulating pump group, air conditioning terminal form path, and the second stop valve is closed, and realizing cold-storage tank is separately air conditioning terminal cooling.
Preferably, the refrigeration machine described in step D2 carries out in cooling process to air conditioning terminal, and control module is regulated by the power of temperature signal to circulating pump group and refrigeration machine of the first temperature sensor and the second temperature sensor feedback.
When the temperature difference of the first temperature sensor and the second temperature sensor exceeds upper limit set value, control module improves the power of circulating pump group and refrigeration machine;
When the temperature difference of the first temperature sensor and the second temperature sensor to reduce the power of circulating pump group and refrigeration machine lower than control module during lower limit set value.
Preferably, the cold-storage tank described in step D3 is separately in air conditioning terminal cooling process, and control module is regulated by the power of temperature signal to circulating pump group of the first temperature sensor and the second temperature sensor feedback.
When the temperature difference of the first temperature sensor and the second temperature sensor exceeds upper limit set value, control module improves the power of circulating pump group;
When the temperature difference of the first temperature sensor and the second temperature sensor to reduce the power of circulating pump group lower than control module during lower limit set value.
Further, step B1 is performed prior to step C:
According to the low import and export leaving water temperature of the cold-storage tank of the 5th temperature sensor feedback, step B1, control module judge whether cold-storage tank meets cooling demand, if cold-storage tank meets cooling demand enter step C, if cold-storage tank does not meet cooling demand, enter step B101;
Step B101, control module control the second stop valve, the first control valve is opened, and refrigeration machine, circulating pump group, cold-storage tank form path, realize refrigeration machine and carry out cold-storage to cold-storage tank, enter step C after cold-storage completes.
Further, described step e comprises:
Step e 1, control module judge whether cold-storage tank meets cooling demand, if cold-storage tank meets cooling demand enter step e 101, if cold-storage tank does not meet cooling demand enter step e 102;
Step e 101, control module control the first stop valve, the first control valve closes, and the second stop valve, the second control valve are opened, and refrigeration machine, circulating pump group, air conditioning terminal form path, realize refrigeration machine and carry out cooling to air conditioning terminal;
Step e 102, control module control the first stop valve and close, and the second stop valve, the first control valve, the second control valve are opened, and refrigeration machine, circulating pump group, air conditioning terminal form path, realize refrigeration machine and carry out cooling to air conditioning terminal;
Meanwhile, refrigeration machine, circulating pump group, cold-storage tank form path, realize refrigeration machine and carry out cold-storage to cold-storage tank.
Preferably, refrigeration machine described in step e 102 carries out the 4th temperature sensor in process of cool to cold-storage tank and detects the high import and export temperature of cold-storage tank and be transferred to control module, when the 4th temperature sensor detected temperatures reaches setting value, it is out of service that control module controls refrigeration machine, controlled circulation pump group quits work, control the second stop valve, the first control valve cuts out, stop charging.
Adopt water cool-storage technology system as above, to walk abreast the running of operating mode by realizing walk abreast operating mode and refrigeration machine cooling and cold-storage tank cooling of air-conditioning system charging, refrigeration machine independent cooling operating mode, the independent cooling operating mode of cold-storage tank, refrigeration machine cooling and cold-storage to the adjustment of valve switch state, state in realization in the process of each operating mode and only adopt same circulating pump group.
Above-mentioned desired temperature, is and needs to calculate according to actual temperature, have different setting values when different working environments and temperature requirement.
Beneficial effect of the present invention is: utilize electricity price between peak and valley can reasonable energy utilization, save electric cost, invest little, reliable, cooling is effective, and structure is simple, while meeting cooling and cold-storage demand, decrease the quantity of water pump, thus decrease the investment of equipment.
Accompanying drawing explanation
According to drawings and embodiments the present invention is described in further detail below.
Fig. 1 is traditional water cool-storage technology systematic schematic diagram.
Fig. 2 is air-conditioning system operation method flow chart of the present invention.
Fig. 3 is water cool-storage technology systematic schematic diagram of the present invention.
Fig. 4 is charging schematic diagram of the present invention.
Fig. 5 is refrigeration machine of the present invention independent cooling operating mode schematic diagram.
Fig. 6 is cold-storage tank of the present invention independent cooling operating mode schematic diagram.
Fig. 7 is that refrigeration machine cooling of the present invention and cold-storage walk abreast operating mode schematic diagram.
Fig. 8 is refrigeration machine of the present invention and cold-storage tank cooling operating mode schematic diagram simultaneously.
In Fig. 1:
1, refrigeration host computer; 2, cold-storage tank; 3, cold-storage pump; 4, cooling pump; 5, air conditioning terminal; 6, bypass pipe.
In Fig. 3 ~ 8:
101, refrigeration machine; 102, cold-storage tank; 103, air conditioning terminal; 104, circulating pump group; 105, the first stop valve; 106, the second stop valve; 107, the first control valve; 108, the second control valve; 109, the 3rd control valve; 110, the first temperature sensor; 111, the second temperature sensor; 112, three-temperature sensor; 113, the 4th temperature sensor; 114, the 5th temperature sensor.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
As shown in Figure 3, for water cool-storage technology systematic schematic diagram of the present invention, a kind of water cool-storage technology system of the present invention, comprise refrigeration machine 101, cold-storage tank 102, air conditioning terminal 103, control module, circulating pump group 104, described control module is electrically connected described refrigeration machine 101 and circulating pump group 104, the exit of described refrigeration machine 101 is provided with the second stop valve 106, the outlet of described second stop valve 106 connects two branch roads, article one, branch road is connected with the first stop valve 105 and cold-storage tank 102 in turn, another branch road connects the import of circulating pump group 104;
The outlet of described circulating pump group 104 is divided into two branch roads;
Article one, branch road is connected with the first control valve 107 and cold-storage tank 102 in turn, described cold-storage tank 102 is provided with low import and export and high import and export, the one end connecting described first control valve 107 is low import and export, and described height is imported and exported and taken back described refrigeration machine 101.
Another branch road connects successively the second control valve 108 and air conditioning terminal 103, described air conditioning terminal 103 outlet takes back described refrigeration machine 101.
By controlling the unlatching of above-mentioned each valve with closed, air-conditioning system can be formed, refrigeration machine 101, circulating pump group 104, air conditioning terminal 103 loop, refrigeration machine 101, circulating pump group 104, cold-storage tank 102 loop and cold-storage tank 102, circulating pump group 104, air conditioning terminal 103 loop.
Can also combined running be carried out between above-mentioned three loops, and then enable water cool-storage technology system realize five kinds of different operating conditions.
Be provided with three-temperature sensor 112 between refrigeration machine 101 and the second stop valve 106, three-temperature sensor 112 is for detecting the temperature of refrigeration machine 101 exit chilled water, so that the power output of adjustment refrigeration machine 101; Be provided with the 5th temperature sensor 114 between first stop valve 105 and cold-storage tank 102, between cold-storage tank 102 and refrigeration machine 101, be provided with the 4th temperature sensor 113, the import department of air conditioning terminal 103 is provided with the first temperature sensor 110, the exit of air conditioning terminal 103 is provided with the second temperature sensor 111.
The actual temperature value detected for detecting each test point chilled water temperature, and is transferred to control module by temperature sensor, is processed by control module.
Described first stop valve 105, second stop valve 106, first control valve 107, second control valve 108 and the first temperature sensor 110, second temperature sensor 111, three-temperature sensor 112, the 4th temperature sensor 113, the 5th temperature sensor 114 are all electrically connected control module.
The circulating pump group 104 adopted in the present embodiment is provided with three circulating pumps, is parallel relationship between three circulating pumps.Certainly in fact adopted circulating pump quantity is not limited to three, it has at least one circulating pump can realize the present invention, for multiple stage, circulating pump can mainly consider that the circulation pump power required for different cooling needs is different, sometimes a circulating pump is difficult to reach power demand, its concrete quantity is determined by the operational mode of cooling needs and system, can set up spare circulating pump to break down to prevent circulating pump, impact uses simultaneously.
Between the import and outlet of described air conditioning terminal 103, be also connected with pressure relief pipe, described pressure relief pipe be provided with the 3rd control valve 109.
Introduce the operation method of above-mentioned water cool-storage technology system below according to Fig. 2, Fig. 3, it comprises the following steps:
Steps A, provide water cool-storage technology system as above;
Step B, air conditioning terminal send cooling instruction, and control module receives cooling signal;
Step C, control module judge whether cold-storage tank 102 participates in cooling, if cold-storage tank 102 participates in cooling, enters step D, if cold-storage tank 102 does not participate in cooling, enters step e;
Step D, control module control the first stop valve 105, second control valve 108 and open, and cold-storage tank 102, circulating pump group 104, air conditioning terminal 103 form path, realize cold-storage tank 102 pairs of air conditioning terminals 103 and carry out cooling;
Step e, control module control the first stop valve 105 and close, and the second stop valve 106, second control valve 108 is opened, and refrigeration machine 101, circulating pump group 104, air conditioning terminal 103 form path, realizes refrigeration machine 101 pairs of air conditioning terminals 103 and carries out cooling.
Further, step B1 is performed prior to step C:
The low import and export leaving water temperature of cold-storage tank 102 that step B1, control module are fed back according to the 5th temperature sensor 114 judges whether cold-storage tank 102 meets cooling demand, if cold-storage tank 102 meets cooling demand enter step C, if cold-storage tank 102 does not meet cooling demand, enter step B101;
Step B101, control module control the second stop valve 106, first control valve 107 and open, and refrigeration machine 101, circulating pump group 104, cold-storage tank 102 form path, realize refrigeration machine 101 pairs of cold-storage tanks 102 and carry out cold-storage, enter step C after cold-storage completes.
Further, described step D comprises:
Step D1, control module judge whether to need cold-storage tank 102 and refrigeration machine 101 to participate in cooling simultaneously, if desired cold-storage tank 102 and refrigeration machine 101 participate in cooling simultaneously and then carry out step D2, if do not need cold-storage tank 102 and refrigeration machine 101 to participate in cooling simultaneously, enter step D3;
Step D2, control module control the first stop valve 105, second stop valve 106, second control valve 108 and open, cold-storage tank 102, circulating pump group 104, air conditioning terminal 103 form path, realize cold-storage tank 102 pairs of air conditioning terminals 103 and carry out cooling, simultaneously, refrigeration machine 101, circulating pump group 104, air conditioning terminal 103 form path, realize refrigeration machine 101 pairs of air conditioning terminals 103 and carry out cooling;
Step D3, control module control the first stop valve 105, second control valve 108 and open, and cold-storage tank 102, circulating pump group 104, air conditioning terminal 103 form path, and the second stop valve 106 is closed, and realizing cold-storage tank 102 is separately air conditioning terminal 103 cooling.
Preferably, refrigeration machine described in step D2 101 pairs of air conditioning terminals 103 carry out in cooling process, and control module is regulated by the power of temperature signal to circulating pump group 104 and refrigeration machine 101 of the first temperature sensor 110 and the second temperature sensor 111 feedback;
When the temperature difference of the first temperature sensor 110 and the second temperature sensor 111 exceeds upper limit set value, control module improves the power of circulating pump group 104 and refrigeration machine 101;
When the temperature difference of the first temperature sensor 110 and the second temperature sensor 111 to reduce the power of circulating pump group 104 and refrigeration machine 101 lower than control module during lower limit set value.
Preferably, the cold-storage tank 102 described in step D3 is in air conditioning terminal 103 cooling process separately, and control module is regulated by the power of temperature signal to circulating pump group 104 of the first temperature sensor 110 and the second temperature sensor 111 feedback;
When the temperature difference of the first temperature sensor 110 and the second temperature sensor 111 exceeds upper limit set value, control module improves the power of circulating pump group 104;
When the temperature difference of the first temperature sensor 110 and the second temperature sensor 111 to reduce the power of circulating pump group 104 lower than control module during lower limit set value.
Further, described step e comprises:
Step e 1, control module judge whether cold-storage tank 102 meets cooling demand, if cold-storage tank 102 meets cooling demand enter step e 101, if cold-storage tank 102 does not meet cooling demand enter step e 102;
Step e 101, control module control the first stop valve 105, first control valve 107 and close, second stop valve 106, second control valve 108 is opened, refrigeration machine 101, circulating pump group 104, air conditioning terminal 103 form path, realize refrigeration machine 101 pairs of air conditioning terminals 103 and carry out cooling;
Step e 102, control module control the first stop valve 105 and close, second stop valve 106, first control valve 107, second control valve 108 is opened, refrigeration machine 101, circulating pump group 104, air conditioning terminal 103 form path, realize refrigeration machine 101 pairs of air conditioning terminals 103 and carry out cooling;
Meanwhile, refrigeration machine 101, circulating pump group 104, cold-storage tank 102 form path, realize refrigeration machine 101 pairs of cold-storage tanks 102 and carry out cold-storage.
Preferably, refrigeration machine described in step e 102 101 pairs of cold-storage tanks 102 carry out the 4th temperature sensor 113 in process of cool and detect the high import and export temperature of cold-storage tank 102 and be transferred to control module, when the 4th temperature sensor 113 detected temperatures reaches setting value, it is out of service that control module controls refrigeration machine 101, controlled circulation pump group 104 quits work, control the second stop valve 106, first control valve 107 to close, stop charging.
The course of work of each operating mode in the present invention is introduced in detail, the pipeline of bold portion for being communicated with under operating mode shown in this figure in Fig. 4 ~ 8 below in conjunction with accompanying drawing.
As shown in Figure 4, when performing charging, the first stop valve 105, second control valve 108 cuts out, and the second stop valve 106, first control valve 107 is opened, refrigeration machine 101 and circulating pump group 104 work, and now realize the independent charging of refrigeration machine 101 pairs of cold-storage tanks 102.
In the charging course of work, 4th temperature sensor 113 detects the high import and export temperature of cold-storage tank 102 and is transferred to control module, when the 4th temperature sensor 113 detected temperatures reaches setting value, it is out of service that control module controls refrigeration machine 101, controlled circulation pump group 104 quits work, then control the second stop valve 106, first control valve 107 to close, stop charging.
As shown in Figure 5, when the independent cooling operating mode of execution refrigeration machine, the first stop valve 105, first control valve 107 cuts out, and the second control valve 108, second stop valve 106 is opened, and refrigeration machine 101 and circulating pump group 104 work; In refrigeration machine 101, chilled water carries out cooling by entering into air conditioning terminal 103 after the second stop valve 106, circulating pump group 104 and the second control valve 108, realizes refrigeration machine 101 cooling operating mode separately;
In cooling process, control module by the temperature signal of the first temperature sensor 110 and the second temperature sensor 111 feedback to circulating pump group 104 and refrigeration machine 101 power regulate, when the temperature difference of the first temperature sensor 110 and the second temperature sensor 111 exceeds upper limit set value, control module improves the power of circulating pump group 104 and refrigeration machine 101, when the temperature difference of the first temperature sensor 110 and the second temperature sensor 111 to reduce the power of circulating pump group 104 and refrigeration machine 101 lower than control module during lower limit set value.
In this operating mode, the temperature value that control module is fed back according to three-temperature sensor 112 regulates refrigeration machine 101 power output, and by arranging refrigeration machine 101 water outlet temperature setting value and circulating pump output frequency, make refrigeration machine 101 and water pump total power consumption minimum.
As shown in Figure 6, when performing cold-storage tank 102 independent cooling operating mode, the second stop valve 106, first control valve 107 cuts out, first stop valve 105, second control valve 108 is opened, refrigeration machine 101 cuts out, and circulating pump group 104 works, and now realizes cold-storage tank 102 cooling operating mode separately.
In cold-storage tank 102 separately the cooling operating mode course of work, control module is regulated by the power of temperature signal to circulating pump group 104 of the first temperature sensor 110 and the second temperature sensor 111 feedback, when 111 temperature difference of the first temperature sensor 110 and the second temperature sensor exceed upper limit set value, control module improves the power of circulating pump group 104, when the temperature difference of the first temperature sensor 110 and the second temperature sensor 111 to reduce the power of circulating pump group 104 lower than control module during lower limit set value.
5th temperature sensor 114 detected temperatures is also transferred to control module, when the temperature that the 5th temperature sensor 114 detects reaches setting value, represent that cold-storage tank leaving water temperature does not reach cooling demand, control module controlled circulation pump group 104 is out of service, cold-storage tank 102 stops letting cool, first stop valve 105, second control valve 108 cuts out, and cold-storage tank 102 stops cooling.
As shown in Figure 7, when execution refrigeration machine cooling and cold-storage walk abreast operating mode, first stop valve 105 is closed, first control valve 107, second control valve 108, second stop valve 106 is opened, refrigeration machine 101 and circulating pump group 104 work, in refrigeration machine 101, chilled water enters circulating pump group 104 by the second stop valve 106, exported to enter in cold-storage tank 102 respectively by the first control valve 107 by circulating pump group 104 and carry out cold-storage, enter air conditioning terminal by the second control valve 108 and carry out cooling, realize refrigeration machine 101 cooling and cold-storage and to walk abreast operating mode; Now the 4th temperature sensor 113 detects cold-storage tank height and imports and exports circulating water temperature, illustrates that the charging of refrigeration machine to cold-storage tank completes when detected temperatures value reaches setting value.
As shown in Figure 8, performing refrigeration machine and cold-storage tank while during cooling operating mode, first control valve 107 cuts out, second stop valve 106, second control valve 108, first stop valve 105 is opened, refrigeration machine 101 and circulating pump group 104 work, in refrigeration machine 101, chilled water is entered after air conditioning terminal 103 carries out cooling by the second stop valve 106, circulating pump group 104, second control valve 108 and flows back to refrigeration machine 101, realizes refrigeration machine 101 for SAPMAC method; Chilled water simultaneously in cold-storage tank 102 flows back to cold-storage tank 102 by the first stop valve 105, circulating pump group 104, second control valve 108 after entering air conditioning terminal 103 cooling, realizes cold-storage tank 102 for SAPMAC method.
At refrigeration machine 101 with cold-storage tank 102 simultaneously the cooling operating mode course of work, 5th temperature sensor 114 detects the low import and export leaving water temperature of cold-storage tank 102, when the low import and export leaving water temperature of cold-storage tank 102 reaches setting value, control module controls the first stop valve 105 and closes, and is transformed into refrigeration machine 101 cooling operating mode separately; Or, close refrigeration machine 101 and circulating pump group 104, first stop valve 105, second stop valve 106, second control valve 108 simultaneously, terminate whole cooling operating mode.
In running, by monitoring the adjustment of each temperature value and desired temperature, making system while meeting end demand, realizing the switching of five kinds of different operating modes.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (15)
1. a water cool-storage technology system, comprise refrigeration machine, cold-storage tank, air conditioning terminal, control module, circulating pump group, described control module is electrically connected described refrigeration machine and circulating pump group, it is characterized in that, the exit of described refrigeration machine is provided with the second stop valve, the outlet of described second stop valve connects two branch roads, a branch road is connected with the first stop valve and cold-storage tank in turn, and another branch road connects the import of circulating pump group;
The outlet of described circulating pump group is divided into two branch roads;
Article one, branch road is connected with the first control valve and cold-storage tank in turn, described cold-storage tank is provided with low import and export and high import and export, the one end connecting described first control valve is low import and export, and described height is imported and exported and taken back described refrigeration machine;
Another branch road connects the second control valve and air conditioning terminal successively, and described air conditioning terminal outlet takes back described refrigeration machine.
2. water cool-storage technology system according to claim 1, it is characterized in that, the exit of described refrigeration machine is provided with three-temperature sensor, is provided with the 5th temperature sensor between the first stop valve and the low import and export of cold-storage tank, cold-storage tank height import and export is provided with the 4th temperature sensor, the import department of air conditioning terminal is provided with the first temperature sensor, the exit of air conditioning terminal is provided with the second temperature sensor.
3. water cool-storage technology system according to claim 2, it is characterized in that, described first stop valve, the second stop valve, the first control valve, the second control valve and the first temperature sensor, the second temperature sensor, three-temperature sensor, the 4th temperature sensor, the 5th temperature sensor are all electrically connected control module.
4. the water cool-storage technology system according to any one of claims 1 to 3, is characterized in that, includes at least one circulating pump in described circulating pump group.
5. water cool-storage technology system according to claim 4, is characterized in that, is parallel relationship between circulating pump when existence two and above circulating pump in described circulating pump group.
6. water cool-storage technology system according to claim 4, is characterized in that, is also connected with pressure relief pipe, described pressure relief pipe is provided with the 3rd control valve between the import of described air conditioning terminal and outlet.
7. an operation method for water cool-storage technology system, is characterized in that, comprises the following steps:
Steps A, provide the system of the water cool-storage technology described in any one of claim 1 to 6;
Step B, air conditioning terminal send cooling instruction, and control module receives cooling signal;
Step C, control module judge whether cold-storage tank participates in cooling, if cold-storage tank participates in cooling, enter step D, if cold-storage tank does not participate in cooling, enter step e;
Step D, control module control the first stop valve, the second control valve is opened, and cold-storage tank, circulating pump group, air conditioning terminal form path, realize cold-storage tank and carry out cooling to air conditioning terminal;
Step e, control module control the first stop valve and close, and the second stop valve, the second control valve are opened, and refrigeration machine, circulating pump group, air conditioning terminal form path, realize refrigeration machine and carry out cooling to air conditioning terminal.
8. the operation method of water cool-storage technology system according to claim 7, is characterized in that, described step D comprises:
Step D1, control module judge whether to need cold-storage tank and refrigeration machine to participate in cooling simultaneously, and if desired cold-storage tank and refrigeration machine participate in cooling simultaneously and then carry out step D2, if do not need cold-storage tank and refrigeration machine to participate in cooling simultaneously, enter step D3;
Step D2, control module control the first stop valve, the second stop valve, the second control valve unlatching, cold-storage tank, circulating pump group, air conditioning terminal form path, realize cold-storage tank and cooling is carried out to air conditioning terminal, refrigeration machine, circulating pump group, air conditioning terminal form path simultaneously, realize refrigeration machine and carry out cooling to air conditioning terminal;
Step D3, control module control the first stop valve, the second control valve is opened, and cold-storage tank, circulating pump group, air conditioning terminal form path, and the second stop valve is closed, and realizing cold-storage tank is separately air conditioning terminal cooling.
9. the operation method of water cool-storage technology system according to claim 8, it is characterized in that, refrigeration machine described in step D2 carries out in cooling process to air conditioning terminal, and control module is regulated by the power of temperature signal to circulating pump group and refrigeration machine of the first temperature sensor and the second temperature sensor feedback.
10. the operation method of water cool-storage technology system according to claim 9, is characterized in that, when the temperature difference of the first temperature sensor and the second temperature sensor exceeds upper limit set value, control module improves the power of circulating pump group and refrigeration machine;
When the temperature difference of the first temperature sensor and the second temperature sensor to reduce the power of circulating pump group and refrigeration machine lower than control module during lower limit set value.
The operation method of 11. water cool-storage technology systems according to claim 8, it is characterized in that, cold-storage tank described in step D3 is separately in air conditioning terminal cooling process, and control module is regulated by the power of temperature signal to circulating pump group of the first temperature sensor and the second temperature sensor feedback.
The operation method of 12. water cool-storage technology systems according to claim 11, is characterized in that, when the temperature difference of the first temperature sensor and the second temperature sensor exceeds upper limit set value, control module improves the power of circulating pump group;
When the temperature difference of the first temperature sensor and the second temperature sensor to reduce the power of circulating pump group lower than control module during lower limit set value.
The operation method of 13. water cool-storage technology systems according to claim 7 or 8, is characterized in that, performs step B1 prior to step C:
According to the low import and export leaving water temperature of the cold-storage tank of the 5th temperature sensor feedback, step B1, control module judge whether cold-storage tank meets cooling demand, if cold-storage tank meets cooling demand enter step C, if cold-storage tank does not meet cooling demand, enter step B101;
Step B101, control module control the second stop valve, the first control valve is opened, and refrigeration machine, circulating pump group, cold-storage tank form path, realize refrigeration machine and carry out cold-storage to cold-storage tank, enter step C after cold-storage completes.
The operation method of 14. water cool-storage technology systems according to claim 7, it is characterized in that, described step e comprises:
Step e 1, control module judge whether cold-storage tank meets cooling demand, if cold-storage tank meets cooling demand enter step e 101, if cold-storage tank does not meet cooling demand enter step e 102;
Step e 101, control module control the first stop valve, the first control valve closes, and the second stop valve, the second control valve are opened, and refrigeration machine, circulating pump group, air conditioning terminal form path, realize refrigeration machine and carry out cooling to air conditioning terminal;
Step e 102, control module control the first stop valve and close, and the second stop valve, the first control valve, the second control valve are opened, and refrigeration machine, circulating pump group, air conditioning terminal form path, realize refrigeration machine and carry out cooling to air conditioning terminal;
Meanwhile, refrigeration machine, circulating pump group, cold-storage tank form path, realize refrigeration machine and carry out cold-storage to cold-storage tank.
The operation method of 15. water cool-storage technology systems according to claim 14, it is characterized in that, refrigeration machine described in step e 102 carries out in process of cool to cold-storage tank, 4th temperature sensor detects the high import and export temperature of cold-storage tank and is transferred to control module, when the 4th temperature sensor detected temperatures reaches setting value, it is out of service that control module controls refrigeration machine, and controlled circulation pump group quits work, control the second stop valve, the first control valve cuts out, stop charging.
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| CN104879843B (en) * | 2015-06-12 | 2017-06-30 | 广东美的暖通设备有限公司 | Air conditioner controlling device, multi-split air conditioner and air-conditioner control method |
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| CN106969449B (en) * | 2017-04-17 | 2019-11-22 | 深圳达实智能股份有限公司 | The water energy-storage system and its application method that mesolimnion is cut down and utilized |
| CN107062481B (en) * | 2017-04-18 | 2023-06-20 | 海南佩尔优科技有限公司 | Air conditioning system and control method thereof |
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| CN107202377A (en) * | 2017-05-19 | 2017-09-26 | 海南佩尔优科技有限公司 | Energy-storage air conditioner system and its control method |
| CN113883626B (en) * | 2021-11-05 | 2023-01-24 | 珠海格力电器股份有限公司 | Air conditioning system and cold charging and discharging control method of cold storage tank of air conditioning system |
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