CN105277009A - Cooling system, energy consumption regulating and controlling method of cooling system, fluid compression cooling system and electricity generation cooling system - Google Patents
Cooling system, energy consumption regulating and controlling method of cooling system, fluid compression cooling system and electricity generation cooling system Download PDFInfo
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Abstract
The invention discloses a cooling system, an energy consumption regulating and controlling method of the cooling system, a fluid compression cooling system and an electricity generation cooling system. The cooling system comprises a cooling water tower, a cold water main machine, a fluid conveying device and a controller. The cooling water tower comprises a fan. The fan is used for dissipating heat of fluid in the cooling water tower. The cold water main machine comprises a compressor. The compressor is used for conducting heat exchange on fluid in the cold water main machine. The fluid conveying device is communicated with the cooling water tower and the cold water main machine and used for enabling the fluid to sequentially flow to the cooling water tower, the fluid conveying device and the cold water main machine and then flow back to the cooling water tower. The controller is coupled to the compressor, the fluid conveying device and the fan. The controller is used for regulating the rotation speed of the fan according to a fan energy consumption value of the fan and a compressor energy consumption value of the compressor or regulating the rotation speed of the fluid conveying device according to the energy consumption sum of a conveying energy consumption value of the fluid conveying device and the compressor energy consumption value of the compressor. Efficiency waste of the cooling system can be reduced.
Description
Technical field
The present invention relates to a kind of energy consumption regulator control system, particularly a kind of cooling system of traceable lowest energy consumption value and the generating cooling system of energy consumption regulate and control method, fluid compression energy consumption regulator control system and traceable maximum power generation thereof and regulate and control method thereof.
Background technology
General existing cooling system comprises a cooling tower, an ice water host computer, the water pump of an adjustable rotational speed and a controlling organization.Cooling tower inside is provided with adjustable rotational speed fan to the fluid for radiating heat flowing through cooling tower.Ice water host computer inside is provided with compressor to make the fluid flowing through compressor and absorbs heat to thermal source.The water pump of adjustable rotational speed drive fluid can form a cool cycles between cooling tower and ice water host computer.The control mode of controlling organization can be divided into two classes.The first kind is according to the coolant water temperature of the cooling tower port of export and the temperature difference of outer air humidity bulb temperature to the rotating speed of the rotating speed or water pump that adjust adjusting fan, to reach desired target temperature.Equations of The Second Kind be the coolant water temperature of the direct basis cooling tower port of export to the rotating speed of the rotating speed or water pump that adjust adjusting fan, to reach desired target temperature.
But, because above-mentioned control method all reckons without energy consumption, therefore likely cause system cannot operate in the most energy-conservation mode, and then cause the waste on cooling system electricity.
Summary of the invention
The object of the present invention is to provide a kind of cooling system and energy consumption regulate and control method, fluid compression cooling system and generating cooling system, so as to solving the ice water host computer of existing cooling system, adjustable rotational speed fan or water pump and cannot operating with the most energy-conservation rotating speed, and then cause the problem of the waste in cooling system usefulness.
For achieving the above object, the invention provides a kind of cooling system, comprise a cooling tower, an ice water host computer, fluid conveying equipment and a controller.Cooling tower comprises a fan.Fan is in order to dispel the heat to cooling tower inside fluid.Ice water host computer comprises a compressor.Compressor, carries out heat exchange in order to make the fluid in ice water host computer.Conveying equipment for fluid substances is communicated in cooling tower and ice water host computer, and in order to make fluids in series flow to cooling tower, conveying equipment for fluid substances and ice water host computer, then be back to cooling tower.Controller is coupled to conveying equipment for fluid substances and fan.Controller in order to according to a fan power consumption values of fan and an energy consumption of compressor value of compressor an energy consumption and adjust the rotating speed of fan, or the energy consumption of foundation one conveying energy consumption value of conveying equipment for fluid substances and the energy consumption of compressor value of compressor and adjust the rotating speed of conveying equipment for fluid substances.
Wherein, the rotating speed that this controller increases or reduce this fan makes the energy consumption of this fan power consumption values and this energy consumption of compressor value and is maintained at minimum value, or the rotating speed increasing or reduce this conveying equipment for fluid substances makes the energy consumption of this conveying energy consumption value and this energy consumption of compressor value and is maintained at minimum value.
Wherein, the rotating speed of this fan is increased to a test rotating speed from an initial rotating speed by this controller, when this fan is in this initial rotating speed, this controller obtain one first energy consumption that this fan power consumption values is added with this energy consumption of compressor value and, when this fan is in this test rotating speed, this controller obtain one second energy consumption that this fan power consumption values is added with this energy consumption of compressor value and, if this first energy consumption and be greater than this second energy consumption and, then the rotating speed of this fan heightened by this controller, if this first energy consumption and be less than this second energy consumption and, then the rotating speed of this fan turned down by this controller.
Wherein, the rotating speed of this fan is reduced to a test rotating speed from an initial rotating speed by this controller, when this fan is in this initial rotating speed, this controller obtain one first energy consumption that this fan power consumption values is added with this energy consumption of compressor value and, when this fan is in this test rotating speed, this controller obtain one second energy consumption that this fan power consumption values is added with this energy consumption of compressor value and, if this first energy consumption and be greater than this second energy consumption and, then this controller downgrades the rotating speed of this fan, if this first energy consumption and be less than this second energy consumption and, then the rotating speed of this fan heightened by this controller.
Wherein, the rotating speed of this conveying equipment for fluid substances is increased to a test rotating speed from an initial rotating speed by this controller, when this conveying equipment for fluid substances is in this initial rotating speed, this controller obtain one first energy consumption that this conveying energy consumption value is added with this energy consumption of compressor value and, when this conveying equipment for fluid substances is in this test rotating speed, this controller obtain one second energy consumption that this conveying energy consumption value is added with this energy consumption of compressor value and, if this first energy consumption and be greater than this second energy consumption and, then the rotating speed of this conveying equipment for fluid substances heightened by this controller, if this first energy consumption and be less than this second energy consumption and, then the rotating speed of this conveying equipment for fluid substances turned down by this controller.
Wherein, the rotating speed of this conveying equipment for fluid substances is reduced to a test rotating speed from an initial rotating speed by this controller, when this conveying equipment for fluid substances is in this initial rotating speed, this controller obtain one first energy consumption that this conveying energy consumption value is added with this energy consumption of compressor value and, when this conveying equipment for fluid substances is in this test rotating speed, this controller obtain one second energy consumption that this conveying energy consumption value is added with this energy consumption of compressor value and, if this first energy consumption and be greater than this second energy consumption and, then this controller downgrades the rotating speed of this conveying equipment for fluid substances, if this first energy consumption and be less than this second energy consumption and, then the rotating speed of this conveying equipment for fluid substances heightened by this controller.
Wherein, more comprise one first electric power checkout gear, one second electric power checkout gear and one the 3rd electric power checkout gear, this the first electric power checkout gear is electrically connected at this fan and this controller, and in order to detect the power consumption of this fan, this the second electric power checkout gear is electrically connected at this compressor and this controller, and in order to detect the power consumption of this compressor, 3rd electric power checkout gear is electrically connected at this conveying equipment for fluid substances and this controller, and in order to detect the power consumption of this conveying equipment for fluid substances.
Wherein, more comprise one first speed detector and one second speed detector, this first speed detector is electrically connected at this fan and this controller, and in order to detect the rotating speed of this fan, this the second electric power checkout gear is electrically connected at this conveying equipment for fluid substances and this controller, and in order to sense the rotating speed of this conveying equipment for fluid substances.
The present invention also provides a kind of fluid compression cooling system, comprises a cooling tower, fluid compression device, fluid conveying equipment and a controller.Cooling tower comprises a fan.Fan is in order to dispel the heat to cooling tower inside fluid.Fluid compression apparatus is in order to compress this fluid.Conveying equipment for fluid substances flows through fluid compression apparatus in order to drive fluid.Controller is coupled to conveying equipment for fluid substances and fluid compression apparatus.Controller in order to according to a fan power consumption values of fan and the fluid compression device power consumption values of fluid compression apparatus energy consumption and adjust the rotating speed of fan, or the energy consumption of foundation one conveying energy consumption value of conveying equipment for fluid substances and the fluid compression apparatus power consumption values of fluid compression apparatus and adjust the rotating speed of conveying equipment for fluid substances.
The present invention also provides a kind of generating cooling system, comprises a cooling tower, a generating equipment, fluid conveying equipment and a controller.Cooling tower comprises a fan.Fan is in order to dispel the heat to cooling tower inside fluid.Generating equipment is in order to produce an electric energy.Conveying equipment for fluid substances flows through generating equipment in order to drive this fluid.Controller is coupled to generating equipment and conveying equipment for fluid substances.Controller in order to according to a fan power consumption values of fan and an electric energy growing amount of generating equipment energy and adjust the rotating speed of fan, or the energy of foundation one conveying energy consumption value of conveying equipment for fluid substances and the electric energy growing amount of generating equipment and adjust the rotating speed of conveying equipment for fluid substances.
The present invention also provides a kind of energy consumption regulate and control method of cooling system, and cooling system comprises ice water host computer, the fluid conveying equipment that a cooling tower, with a fan has a compressor.The energy consumption regulate and control method of cooling system comprises with an initial rotating speed drive fan, and obtain fan and compressor one first energy consumption and.With a test rotating speed drive fan.Test rotating speed is that initial rotating speed adds a rotation speed change amount, and one second energy consumption obtaining fan and compressor with.According to the first energy consumption with the second energy consumption with performs one and chase after low determining program, and foundation chases after the result drive fan of low determining program.
Wherein, if this rotation speed change amount is just, this chases after low determining program and comprises: when this second energy consumption and be less than this first energy consumption and time, heighten this initial rotating speed, and re-execute the step driving this fan with this initial rotating speed.
Wherein, if this rotation speed change amount be on the occasion of, this tracking determining program more comprises: when this second energy consumption and be greater than this first energy consumption and time, change this rotation speed change amount into negative value, and re-execute the step driving this fan with this initial rotating speed.
Wherein, this tracking determining program more comprises: when this second energy consumption and equal this first energy consumption and time, re-execute the step driving this fan with this initial rotating speed.
The present invention also provides a kind of energy consumption regulate and control method of cooling system, cooling system comprises ice water host computer, the fluid conveying equipment that a cooling tower, with a fan has a compressor, method comprises with an initial rotating speed drive fluid conveying equipment, and obtain conveying equipment for fluid substances and compressor one first energy consumption and.With a test rotating speed drive fluid conveying equipment.Test rotating speed is that initial rotating speed adds a rotation speed change amount, and one second energy consumption obtaining conveying equipment for fluid substances and compressor with.According to the first energy consumption with the second energy consumption with performs one and chase after low determining program, and foundation chases after the result drive fluid conveying equipment of low determining program.
Wherein, if this rotation speed change amount is just, this chases after low determining program and comprises: when this second energy consumption and be less than this first energy consumption and time, heighten this initial rotating speed, and re-execute the step driving this conveying equipment for fluid substances with this initial rotating speed.
Wherein, if this rotation speed change amount be on the occasion of, this tracking determining program more comprises: when this second energy consumption and be greater than this first energy consumption and time, change this rotation speed change amount into negative value, and re-execute the step driving this conveying equipment for fluid substances with this initial rotating speed.
Wherein, this tracking determining program more comprises: when this second energy consumption and equal this first energy consumption and time, re-execute the step driving this conveying equipment for fluid substances with this initial rotating speed.
The cooling system provided according to the invention described above and energy consumption regulate and control method, fluid compression cooling system and generating cooling system, the rotating speed of fan is adjusted according to fan power consumption values and energy consumption of compressor value, and in the mode of following the trail of, fan can be operated within the scope of optimum operating speed, and then allow the energy consumption of cooling system and be maintained at the minimum value of essence.
In addition, also the rotating speed of conveying equipment for fluid substances can be adjusted according to the conveying energy consumption value of conveying equipment for fluid substances and energy consumption of compressor value, and in the mode of following the trail of, conveying equipment for fluid substances can be operated within the scope of best effort, and then allow the energy consumption of cooling system and be maintained at the minimum value of essence.
Moreover above-mentioned energy consumption regulate and control method also can overlap for fluid compression cooling system and electricity generation system, make the energy consumption of fluid compression cooling system and be maintained at the minimum value of essence, or making total electric energy growing amount of electricity generation system be maintained at the highest value of essence.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the block schematic diagram of the cooling system according to one embodiment of the invention.
Fig. 2 is the relation schematic diagram between the energy consumption of the fan of Fig. 1 and the rotating speed of fan.
Fig. 3 is the relation schematic diagram between the energy consumption of the compressor of Fig. 1 and the rotating speed of fan.
Fig. 4 is the relation schematic diagram between the rotating speed of the energy consumption of the fan of Fig. 1, the energy consumption of compressor and fan.
Fig. 5 is the relation schematic diagram between the rotating speed of the energy consumption of the fan of Fig. 1, the energy consumption of compressor and fan.
Fig. 6 is the relation schematic diagram between the rotating speed of the energy consumption of the fan of Fig. 1, the energy consumption of compressor and fan.
Fig. 7 is the relation schematic diagram between the rotating speed of the energy consumption of the fan of Fig. 1, the energy consumption of compressor and fan.
The graph of a relation that Fig. 8 is the electric energy growing amount of the electricity generation system according to the present invention two embodiment and the conveying energy consumption value of conveying equipment for fluid substances.
Wherein, Reference numeral:
10 cooling systems
100 cooling towers
110 first-class pipes
111 first water inlet ends
112 first water sides
120 fans
200 ice water host computers
210 second pipes
211 second water inlet ends
212 second water sides
220 condensers
230 expansion valves
240 evaporimeters
250 compressors
300 conveying equipment for fluid substances
410 first electric power checkout gears
420 second electric power checkout gears
430 the 3rd electric power checkout gears
510 first speed detectors
520 second speed detectors
600 controllers
Detailed description of the invention
Please refer to Fig. 1 to Fig. 3.Fig. 1 is the block schematic diagram of the cooling system according to one embodiment of the invention.Fig. 2 is the relation schematic diagram between the energy consumption of the fan of Fig. 1 and the rotating speed of fan.Fig. 3 is the relation schematic diagram between the energy consumption of the compressor of Fig. 1 and the rotating speed of fan.
The cooling system 10 of the present embodiment comprises cooling tower 100, ice water host computer 200, fluid conveying equipment 300,1 first electric power checkout gear 410,1 second electric power checkout gear 420, the 3rd electric power checkout gear 430,1 first speed detector 510,1 second speed detector 520 and a controller 600.
Cooling tower 100 comprises first-class pipe 110 and a fan 120.First-class pipe 110 has one first water inlet end 111 and one first water side 112.Fan 120 is in order to dispel the heat to the fluid (not illustrating) in first-class pipe 110.Fluid is such as cooling water or refrigerant.Fan energy consumption becomes positive correlation with the radiating efficiency of fan to fluid.Fan 120 has a fan energy consumption curve.Fan energy consumption curve is the relation between the energy consumption of fan 120 and rotating speed.Fan energy consumption and rotation speed of the fan positive correlation (as shown in Figure 2).That is, fan energy consumption is larger, then the radiating efficiency of fan to fluid is larger.
Ice water host computer 200 comprises second pipe 210, condenser 220, expansion valve 230, evaporimeter 240 and a compressor 250.Second pipe 210 has one second water inlet end 211 and one second water side 212.The second water inlet end 211 of pipeline connection second pipe 210 is passed through in first water side 112 of first-class pipe 110, and the second water side 212 of second pipe 210 is by the first water inlet end 111 of the first-class pipe 110 of pipeline connection, is formed a cool cycles to make between cooling tower 100 and ice water host computer 200.
Condenser 220, expansion valve 230, evaporimeter 240 and a compressor 250 form a heat exchange circulation.Condenser 220 thermo-contact is in second pipe 210, and the fluid in second pipe 210 is in order to heat absorption, produces frozen water to make ice water host computer 200.Compressor 250 has an energy consumption of compressor curve.The rotating speed of energy consumption of compressor curve and fan 120 is inversely proportional to (as shown in Figure 3).Because fan 120 rotating speed is higher, then the cooling effect representing fan 120 is better, therefore the fluid temperature (F.T.) flowing into ice water host computer 200 is lower, makes compressor 250 have preferably energy consumption performance.Otherwise then compressor 250 has poor energy consumption performance.
Conveying equipment for fluid substances 300 is communicated between the first water side 112 and the second water inlet end 211, and in order to make fluid flow to the second water inlet end 211 (the direction circulation along indicated by arrow) from the first water side 112.
As shown in Figure 1, the first electric power checkout gear 410, second electric power checkout gear 420 and the 3rd electric power checkout gear 430 are such as digital electric meter, and are used for respectively detecting the energy consumption of the energy consumption of fan 120, the energy consumption of compressor 250 and conveying equipment for fluid substances 300.
First speed detector 510 and the second speed detector 520 are such as tachometer, and are used for respectively detecting the rotating speed of fan 120 and the rotating speed of conveying equipment for fluid substances 300.
Controller 600 is electrically connected at the first electric power checkout gear 410, second electric power checkout gear 420, the 3rd electric power checkout gear 430, first speed detector 510 and the second speed detector 520, to obtain the energy consumption data of fan 120 and rotary speed data, the energy consumption data of compressor 250 and the energy consumption data of conveying equipment for fluid substances 300 and rotary speed data.
Please consult Fig. 4 further.Fig. 4 is the relation schematic diagram between the rotating speed of the energy consumption of the fan of Fig. 1, the energy consumption of compressor and fan.Fan energy consumption curve and energy consumption of compressor curve is superimposed can the opening up energy consumption of forming curves and curve.That is, energy consumption and curve have a lowest energy consumption point Plowest, and the energy consumption on the left of lowest energy consumption point Plowest successively decrease interval with lowest energy consumption point Plowest on the right side of an energy consumption increase progressively interval.Controller 600 can regulate and control the rotating speed of fan 120 according to energy consumption and curve.
The energy consumption regulate and control method of above-mentioned cooling system 10 is described.
First step, the rotation speed change amount (Δ R) of setting fan 120.Further, the frequency of setting fan 120 adjustment of rotational speed is such as adjust once for every 5 minutes.
Second step, allows fan 120 first maintain an initial rotation speed operation, by the first electric power checkout gear 410 and the second electric power checkout gear 420 allow controller 600 obtain one first energy consumption and.First energy consumption and be fan 120 when initial rotation speed operation, the sum total of the power consumption values of fan 120 and the power consumption values of compressor 250.
Third step, the rotating speed of fan 120 is tested rotating speed (test rotating speed is that initial rotating speed adds rotation speed change amount) from initial adjustment of rotational speed to, by the first electric power checkout gear 410 and the second electric power checkout gear 420 allow controller 600 obtain one second energy consumption and.Second energy consumption and be fan 120 in time testing rotation speed operation, the sum total of the power consumption values of fan 120 and the power consumption values of compressor 250.
4th step, according to the first energy consumption with the second energy consumption with perform one and chase after low determining program.That is, controller 600 compare the first energy consumption and with the second energy consumption and.If test rotating speed is greater than initial rotating speed (positive Δ R), and the first energy consumption and essence be greater than the second energy consumption and time, then the initial rotating speed (such as replacing former initial rotating speed to test rotating speed) of fan 120 heightened by controller 600, and re-executes with above-mentioned third step.Wherein, essence is greater than and refers to that test rotating speed is greater than more than initial rotating speed 1 percentage (%).But also can be not as limit, in other embodiments, be such as greater than 5% etc.
If test rotating speed be greater than initial rotating speed (positive Δ R), and the first energy consumption and essence be less than the second energy consumption and time, then change rotation speed change amount into negative value, and re-execute with above-mentioned third step.Wherein, essence is less than and refers to that test rotating speed is less than more than initial rotating speed 1 percentage (%).
In like manner, if test rotating speed is less than initial rotating speed (negative Δ R), and the first energy consumption and essence be greater than the second energy consumption and time, then the initial rotating speed (such as replacing former initial rotating speed to test rotating speed) of fan 120 turned down by controller 600, and re-executes with above-mentioned third step.
If test rotating speed is less than initial rotating speed (negative Δ R), and the first energy consumption and essence be less than the second energy consumption and time, then rotation speed change amount is changed on the occasion of, and to re-execute with above-mentioned third step.
In addition, if the first energy consumption and equal the second energy consumption and, then controller 600 repeat adjustment fan 120 rotating speed step and compare the first energy consumption and with the second energy consumption and step.Wherein, essence equals to refer to that the difference of test rotating speed and initial rotating speed is in 1 percentage (%).
Energy consumption regulate and control method according to above-mentioned cooling system 10 can make fan 120 can operate in an optimum operating speed scope (between the positive and negative rotation speed change amount of the rotating speed such as corresponding to lowest energy consumption point).When fan 120 operates within the scope of an optimum operating speed, the energy consumption of cooling system 10 and value be similar to lowest energy consumption and.
For example, control mode is about divided into four kinds of situations, the first situation, and as shown in Figure 4, the rotation speed change amount (Δ R) in fan 120 unit interval is just.When fan 120 operates with initial rotating speed R1, controller 600 can obtain one first energy consumption and Ptotal, 1 (the first energy consumption and Ptotal, 1 is the sum total of the first power consumption values Pf1 of fan 120 and the first power consumption values Pc1 of compressor 250).When the rotating speed of fan 120 is increased to test rotating speed R2 from initial rotating speed R1, controller 600 can obtain one second energy consumption and Ptotal, 2 (the first energy consumption and Ptotal, 2 is the sum total of the first power consumption values Pf2 of fan 120 and the first power consumption values Pc2 of compressor 250).Due to the first energy consumption and Ptotal, 1 is greater than the second energy consumption and Ptotal, 2, the energy consumption that the rotating speed representing fan 120 corresponds to energy consumption and curve is successively decreased interval, therefore controller 600 makes fan 120 to test rotating speed as initial rotation speed operation, and continue to repeat above-mentioned energy consumption regulate and control method to make fan power consumption values and energy consumption of compressor value and be maintained at value minimum in fact.
The second situation, refers to Fig. 5.Fig. 5 is the relation schematic diagram between the rotating speed of the energy consumption of the fan of Fig. 1, the energy consumption of compressor and fan.Rotation speed change amount (Δ R) in fan 120 unit interval is just.When fan 120 operates with initial rotating speed R1, controller 600 can obtain one first energy consumption and Ptotal, 1 (the first energy consumption and Ptotal, 1 is the sum total of the first power consumption values Pf1 of fan 120 and the first power consumption values Pc1 of compressor 250).When the rotating speed of fan 120 is increased to test rotating speed R2 from initial rotating speed R1, controller 600 can obtain one second energy consumption and Ptotal, 2 (the first energy consumption and Ptotal, 2 is the sum total of the first power consumption values Pf2 of fan 120 and the first power consumption values Pc2 of compressor 250).Due to the first energy consumption and Ptotal, 1 is less than the second energy consumption and Ptotal, 2, the energy consumption that the rotating speed representing fan 120 corresponds to energy consumption and curve increases progressively interval, therefore controller 600 can make rotation speed change amount into negative value, and continue to repeat above-mentioned energy consumption regulate and control method to make fan power consumption values and energy consumption of compressor value and be maintained at value minimum in fact.
The third situation, refers to Fig. 6.Fig. 6 is the relation schematic diagram between the rotating speed of the energy consumption of the fan of Fig. 1, the energy consumption of compressor and fan.Rotation speed change amount (Δ R/ Δ T) in fan 120 unit interval is negative.When fan 120 operates with initial rotating speed R1, controller 600 can obtain one first energy consumption and Ptotal, 1 (the first energy consumption and Ptotal, 1 is the sum total of the first power consumption values Pf1 of fan 120 and the first power consumption values Pc1 of compressor 250).When the rotating speed of fan 120 is reduced to test rotating speed R2 from initial rotating speed R1, controller 600 can obtain one second energy consumption and Ptotal, 2 (the first energy consumption and Ptotal, 2 is the sum total of the first power consumption values Pf2 of fan 120 and the first power consumption values Pc2 of compressor 250).Due to the first energy consumption and Ptotal, 1 is less than the second energy consumption and Ptotal, 2, the energy consumption that the rotating speed representing fan 120 corresponds to energy consumption and curve is successively decreased interval, therefore controller 600 rotation speed change amount can be made on the occasion of, and continue to repeat above-mentioned energy consumption regulate and control method to make fan power consumption values and energy consumption of compressor value and be maintained at value minimum in fact.
4th kind of situation, refers to Fig. 7.Fig. 7 is the relation schematic diagram between the rotating speed of the energy consumption of the fan of Fig. 1, the energy consumption of compressor and fan.Rotation speed change amount (Δ R/ Δ T) in fan 120 unit interval is negative.When fan 120 operates with initial rotating speed R1, controller 600 can obtain one first energy consumption and Ptotal, 1 (the first energy consumption and Ptotal, 1 is the sum total of the first power consumption values Pf1 of fan 120 and the first power consumption values Pc1 of compressor 250).When the rotating speed of fan 120 increases test rotating speed R2 from initial rotating speed R1, controller 600 can obtain one second energy consumption and Ptotal, 2 (the first energy consumption and Ptotal, 2 is the sum total of the first power consumption values Pf2 of fan 120 and the first power consumption values Pc2 of compressor 250).Due to the first energy consumption and Ptotal, 1 is greater than the second energy consumption and Ptotal, 2, the energy consumption that the rotating speed representing fan 120 corresponds to energy consumption and curve increases progressively interval, therefore controller 600 makes fan 120 to test rotating speed as initial rotation speed operation, and continue to repeat above-mentioned energy consumption regulate and control method to make fan power consumption values and energy consumption of compressor value and be maintained at value minimum in fact.
In addition, above-mentioned controller 600 according to a fan power consumption values of fan 120 and an energy consumption of compressor value of compressor 250 energy consumption and adjust the rotating speed of fan 120.But not as limit, in other embodiments, controller 600 also can compress an energy consumption of a conveying energy consumption value of power consumption values and conveying equipment for fluid substances 300 according to of compressor 250 and adjust the rotating speed of conveying equipment for fluid substances 300.The conveying energy consumption value of conveying equipment for fluid substances 300 and the energy consumption of compressor value of compressor 250 are inverse ratio.Due to by the energy consumption of conveying energy consumption value and energy consumption of compressor value and adjust conveying equipment for fluid substances 300 the control mode of rotating speed with above by the energy consumption of fan power consumption values and energy consumption of compressor value and the rotating speed adjusting fan 120, therefore to repeat no more.
Above-mentioned energy consumption regulate and control method is not limited to be applied to above-mentioned cooling system, and in other embodiments, energy consumption regulate and control method also can be applied to fluid compression cooling system or electricity generation system.
Fluid compression cooling system is similar to cooling system, and only difference is to replace ice water host computer with fluid compression apparatus (as air compressor machine), and remaining component and energy consumption regulate and control method are all similar to the embodiment of above-mentioned Fig. 1, therefore repeat no more.
Next, by the part of electricity generation system is described, Fig. 8 is referred to.The graph of a relation that Fig. 8 is the electric energy growing amount of the electricity generation system according to the present invention two embodiment and the conveying energy consumption value of conveying equipment for fluid substances.
Electricity generation system comprises a cooling tower, a generating equipment, fluid conveying equipment and a controller.Cooling tower comprises a fan.Fan is in order to dispel the heat to cooling tower inside fluid.Generating equipment is in order to produce an electric energy.Conveying equipment for fluid substances flows through generating equipment in order to drive fluid.Controller is coupled to generating equipment and conveying equipment for fluid substances.Controller in order to according to an electric energy growing amount of generating equipment and a conveying energy consumption value of conveying equipment for fluid substances an energy and adjust a rotating speed of conveying equipment for fluid substances.
Specifically, generating equipment is used for generating electricity, and namely generating equipment can produce electric energy growing amount (positive energy).The electric energy growing amount of generating equipment is directly proportional (as shown in Figure 8) to the rotating speed of conveying equipment for fluid substances.Conveying equipment for fluid substances understands loss electric energy and drive fluid flowing, and namely conveying equipment for fluid substances can loss of energy.The conveying energy consumption value of conveying equipment for fluid substances is directly proportional (as shown in Figure 8) to the rotating speed of conveying equipment for fluid substances.Rotating speed with conveying equipment for fluid substances increases, the energy of electric energy growing amount and conveying energy consumption value and can form a downward opening energy and curve (as shown in Figure 8).And controller can regulate and control the rotating speed of conveying equipment for fluid substances according to energy and curve.
It should be noted that controller also can according to an energy of a fan power consumption values of an electric energy growing amount of generating equipment and fan and the rotating speed adjusting fan.
Cooling system disclosed by the invention described above and energy consumption regulate and control method, fluid compression cooling system and generating cooling system, for adjusting the rotating speed of fan according to fan power consumption values and energy consumption of compressor value, and in the mode of following the trail of, fan can be operated within the scope of optimum operating speed, and then allow the energy consumption of cooling system and be maintained at the minimum value of essence.
In addition, also the rotating speed of conveying equipment for fluid substances can be adjusted according to the conveying energy consumption value of conveying equipment for fluid substances and energy consumption of compressor value, and in the mode of following the trail of, conveying equipment for fluid substances can be operated within the scope of best effort, and then allow the energy consumption of cooling system and be maintained at the minimum value of essence.
Moreover above-mentioned energy consumption regulate and control method also can overlap for air-conditioning system and electricity generation system, make the energy consumption of air-conditioning system and be maintained at the minimum value of essence, or making total electric energy growing amount of electricity generation system be maintained at the highest value of essence.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claims in the present invention.
Claims (18)
1. a cooling system, is characterized in that, comprises:
One cooling tower, comprises a fan, and this fan is in order to dispel the heat to the inner fluid of this cooling tower;
One ice water host computer, comprises a compressor, carries out heat exchange in order to make this fluid in this ice water host computer;
Fluid conveying equipment, is communicated in this cooling tower and this ice water host computer, and in order to make this fluids in series flow to this cooling tower, this conveying equipment for fluid substances and this ice water host computer, then be back to this cooling tower; And
One controller, be coupled to this conveying equipment for fluid substances and this fan, this controller in order to according to a fan power consumption values of this fan and an energy consumption of compressor value of this compressor energy consumption and adjust the rotating speed of this fan, or according to a conveying energy consumption value of this conveying equipment for fluid substances and this energy consumption of compressor value of this compressor energy consumption and adjust the rotating speed of this conveying equipment for fluid substances.
2. cooling system according to claim 1, it is characterized in that, the rotating speed that this controller increases or reduce this fan makes the energy consumption of this fan power consumption values and this energy consumption of compressor value and is maintained at minimum value, or the rotating speed increasing or reduce this conveying equipment for fluid substances makes the energy consumption of this conveying energy consumption value and this energy consumption of compressor value and is maintained at minimum value.
3. cooling system according to claim 2, it is characterized in that, the rotating speed of this fan is increased to a test rotating speed from an initial rotating speed by this controller, when this fan is in this initial rotating speed, this controller obtain one first energy consumption that this fan power consumption values is added with this energy consumption of compressor value and, when this fan is in this test rotating speed, this controller obtain one second energy consumption that this fan power consumption values is added with this energy consumption of compressor value and, if this first energy consumption and be greater than this second energy consumption and, then the rotating speed of this fan heightened by this controller, if this first energy consumption and be less than this second energy consumption and, then the rotating speed of this fan turned down by this controller.
4. cooling system according to claim 2, it is characterized in that, the rotating speed of this fan is reduced to a test rotating speed from an initial rotating speed by this controller, when this fan is in this initial rotating speed, this controller obtain one first energy consumption that this fan power consumption values is added with this energy consumption of compressor value and, when this fan is in this test rotating speed, this controller obtain one second energy consumption that this fan power consumption values is added with this energy consumption of compressor value and, if this first energy consumption and be greater than this second energy consumption and, then this controller downgrades the rotating speed of this fan, if this first energy consumption and be less than this second energy consumption and, then the rotating speed of this fan heightened by this controller.
5. cooling system according to claim 2, it is characterized in that, the rotating speed of this conveying equipment for fluid substances is increased to a test rotating speed from an initial rotating speed by this controller, when this conveying equipment for fluid substances is in this initial rotating speed, this controller obtain one first energy consumption that this conveying energy consumption value is added with this energy consumption of compressor value and, when this conveying equipment for fluid substances is in this test rotating speed, this controller obtain one second energy consumption that this conveying energy consumption value is added with this energy consumption of compressor value and, if this first energy consumption and be greater than this second energy consumption and, then the rotating speed of this conveying equipment for fluid substances heightened by this controller, if this first energy consumption and be less than this second energy consumption and, then the rotating speed of this conveying equipment for fluid substances turned down by this controller.
6. cooling system according to claim 2, it is characterized in that, the rotating speed of this conveying equipment for fluid substances is reduced to a test rotating speed from an initial rotating speed by this controller, when this conveying equipment for fluid substances is in this initial rotating speed, this controller obtain one first energy consumption that this conveying energy consumption value is added with this energy consumption of compressor value and, when this conveying equipment for fluid substances is in this test rotating speed, this controller obtain one second energy consumption that this conveying energy consumption value is added with this energy consumption of compressor value and, if this first energy consumption and be greater than this second energy consumption and, then this controller downgrades the rotating speed of this conveying equipment for fluid substances, if this first energy consumption and be less than this second energy consumption and, then the rotating speed of this conveying equipment for fluid substances heightened by this controller.
7. cooling system according to claim 1, it is characterized in that, more comprise one first electric power checkout gear, one second electric power checkout gear and one the 3rd electric power checkout gear, this the first electric power checkout gear is electrically connected at this fan and this controller, and in order to detect the power consumption of this fan, this the second electric power checkout gear is electrically connected at this compressor and this controller, and in order to detect the power consumption of this compressor, 3rd electric power checkout gear is electrically connected at this conveying equipment for fluid substances and this controller, and in order to detect the power consumption of this conveying equipment for fluid substances.
8. cooling system according to claim 1, it is characterized in that, more comprise one first speed detector and one second speed detector, this first speed detector is electrically connected at this fan and this controller, and in order to detect the rotating speed of this fan, this the second electric power checkout gear is electrically connected at this conveying equipment for fluid substances and this controller, and in order to sense the rotating speed of this conveying equipment for fluid substances.
9. a fluid compression cooling system, is characterized in that, comprises:
One cooling tower, comprises a fan, and this fan is in order to dispel the heat to the inner fluid of this cooling tower;
Fluid compression device, in order to compress this fluid;
Fluid conveying equipment, flows through this fluid compression apparatus in order to drive this fluid; And
One controller, be coupled to this conveying equipment for fluid substances and this fluid compression apparatus, this controller in order to according to a fan power consumption values of this fan and the fluid compression device power consumption values of this fluid compression apparatus an energy consumption and adjust the rotating speed of this fan, or according to a conveying energy consumption value of this conveying equipment for fluid substances and this fluid compression apparatus power consumption values of this fluid compression apparatus energy consumption and adjust the rotating speed of this conveying equipment for fluid substances.
10. a generating cooling system, is characterized in that, comprises:
One cooling tower, comprises a fan, and this fan is in order to dispel the heat to the inner fluid of this cooling tower;
One generating equipment, in order to produce an electric energy;
Fluid conveying equipment, flows through this generating equipment in order to drive this fluid; And
One controller, be coupled to this generating equipment and this conveying equipment for fluid substances, this controller in order to according to a fan power consumption values of this fan and an electric energy growing amount of this generating equipment energy and adjust the rotating speed of this fan, or according to a conveying energy consumption value of this conveying equipment for fluid substances and this electric energy growing amount of this generating equipment energy and adjust the rotating speed of this conveying equipment for fluid substances.
The energy consumption regulate and control method of 11. 1 kinds of cooling systems, is characterized in that, this cooling system comprises ice water host computer, the fluid conveying equipment that a cooling tower, with a fan has a compressor, and the method comprises:
Drive this fan with an initial rotating speed, and obtain this fan and this compressor one first energy consumption and;
Drive this fan with a test rotating speed, this test rotating speed adds a rotation speed change amount for this initial rotating speed, and one second energy consumption obtaining this fan and this compressor with; And
According to this first energy consumption with this second energy consumption with perform one and chase after low determining program, and drive this fan according to this result chasing after low determining program.
The energy consumption regulate and control method of 12. cooling systems according to claim 11, is characterized in that, if this rotation speed change amount is just, this chases after low determining program and comprises:
When this second energy consumption and be less than this first energy consumption and time, heighten this initial rotating speed, and re-execute the step driving this fan with this initial rotating speed.
The energy consumption regulate and control method of 13. cooling systems according to claim 12, is characterized in that, if this rotation speed change amount be on the occasion of, this tracking determining program more comprises:
When this second energy consumption and be greater than this first energy consumption and time, change this rotation speed change amount into negative value, and re-execute the step driving this fan with this initial rotating speed.
The energy consumption regulate and control method of 14. cooling systems according to claim 13, is characterized in that, this tracking determining program more comprises:
When this second energy consumption and equal this first energy consumption and time, re-execute the step driving this fan with this initial rotating speed.
The energy consumption regulate and control method of 15. 1 kinds of cooling systems, is characterized in that, this cooling system comprises ice water host computer, the fluid conveying equipment that a cooling tower, with a fan has a compressor, and the method comprises:
Drive this conveying equipment for fluid substances with an initial rotating speed, and obtain this conveying equipment for fluid substances and this compressor one first energy consumption and;
Drive this conveying equipment for fluid substances with a test rotating speed, this test rotating speed adds a rotation speed change amount for this initial rotating speed, and one second energy consumption obtaining this conveying equipment for fluid substances and this compressor with; And
According to this first energy consumption with this second energy consumption with perform one and chase after low determining program, and drive this conveying equipment for fluid substances according to this result chasing after low determining program.
The energy consumption regulate and control method of 16. cooling systems according to claim 15, is characterized in that, if this rotation speed change amount is just, this chases after low determining program and comprises:
When this second energy consumption and be less than this first energy consumption and time, heighten this initial rotating speed, and re-execute the step driving this conveying equipment for fluid substances with this initial rotating speed.
The energy consumption regulate and control method of 17. cooling systems according to claim 16, is characterized in that, if this rotation speed change amount be on the occasion of, this tracking determining program more comprises:
When this second energy consumption and be greater than this first energy consumption and time, change this rotation speed change amount into negative value, and re-execute the step driving this conveying equipment for fluid substances with this initial rotating speed.
The energy consumption regulate and control method of 18. cooling systems according to claim 17, is characterized in that, this tracking determining program more comprises:
When this second energy consumption and equal this first energy consumption and time, re-execute the step driving this conveying equipment for fluid substances with this initial rotating speed.
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| CN201410354700.0A CN105277009A (en) | 2014-07-24 | 2014-07-24 | Cooling system, energy consumption regulating and controlling method of cooling system, fluid compression cooling system and electricity generation cooling system |
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Application publication date: 20160127 |