CN100427842C - Energy saving comfortable central air-conditioning system without electric two-way regulating valve - Google Patents
Energy saving comfortable central air-conditioning system without electric two-way regulating valve Download PDFInfo
- Publication number
- CN100427842C CN100427842C CNB2004100732523A CN200410073252A CN100427842C CN 100427842 C CN100427842 C CN 100427842C CN B2004100732523 A CNB2004100732523 A CN B2004100732523A CN 200410073252 A CN200410073252 A CN 200410073252A CN 100427842 C CN100427842 C CN 100427842C
- Authority
- CN
- China
- Prior art keywords
- water
- cooling
- regulating valve
- electronic
- cooling water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
The present invention relates to an energy-saving comfortable central air conditioner without an electric two-way regulating valve. The present invention is composed of a cooling water system without an electric two-way valve, and a cooling water system without an electric two-way regulating valve, wherein the water cooling system without an electric two-way valve is composed of a cooling water pump P2, a condenser C of a water cooling machine set CH1, and a cooling tower CT; the cooling water system without an electric two-way regulating valve is composed of an evaporator E of the water cooling machine set CH1, a cooling water pump P1, a water separator DW, a plurality of switch valves K, a plurality of air conditioner terminals AHU(an air processor or a fan coil pipe) and a water collector CW. Because the air conditioning water system which is provided by the present invention does not have the electric two-way valve or a control system of the air conditioning water system, the water pump operates spontaneously under the condition of energy saving and full similar operation, and according to a principle that total comprehensive resistance coefficients St are constant and not changed, the structure and the control of the system are simple. The present invention has the advantages of investment saving, obvious energy saving effects and novel energy saving idea, and therefore, the popularization and the use of the present invention can generate large economic benefits, social benefits and environmental benefits.
Description
Technical field
The present invention relates to the comfortableness central air conditioner system, be specially adapted to a kind of energy saving comfortable central air conditioner system of not having electronic two-way regulating valve.
Background technology
Air-conditioning is the product of modern civilization, and it has become facility indispensable in the people life, but air-conditioning consumes energy, and is the big power consumer.Now, the energy is the grand strategy resource that concerns China's modernization construction overall situation and national security, particularly is in the air conditioner industry of the teeth of the storm of sharp-pointed energy supply and demand contradiction, and it is especially important that the popularization of power-saving technology just seems.
Air-conditioning, the particularly load of comfortableness central air-conditioning are that the increase and decrease with season, time, weather, equipment, personnel amount changes constantly.For the variation of follow load, at the automatic temperature control system that adopts usually on the packaged air conditioner and on the new blower fan group with electronic two-way regulating valve.When changing, air conditioner load causes that wind pushing temperature (or return air temperature) departs from when setting value, controller is according to the size of deviation, control the aperture of electronic two-way regulating valve, change the water yield that is input to coil pipe, cold (heat) amount and the air conditioner load of air-conditioner or the output of new blower fan group are adapted, make by controlling temperature and get back to again near the setting value.The variation that air conditioner with blower and coiled tube is followed the tracks of room load is the temperature control system that adopts the belt switch valve, and equal discharge produces during by air conditioner with blower and coiled tube refrigeration (heat) amount and room cold (heat) load adapt.Phase mutual interference when exerting oneself in order to reduce air conditioning terminal adjusting in parallel.Usually central air conditioner system adopts level pressure, unsteady flow amount control system in load side.According to the principle that control valve is selected, the pressure drop on the electronic two-way regulating valve of design conditions approximates the pressure drop (promptly choosing valve anthority is 0.5, and recommending valve anthority is 0.3～0.7) on the coil pipe.In other words, very reasonable even if electronic two-way regulating valve is selected, in the branch road of an air-conditioner water system that control valve arranged, water pump carries merit to have half to consume on electronic two-way regulating valve approximately during design conditions.And the time of air-conditioning system 99% in 75% rate of load condensate with lower curtate work, season average load rate have only 58% (referring to document: Cao Qi. the implication of sub-load integrated value IPLV. refrigeration air-conditioner and electric machinery, 2003; Cao Qi. the application of System Thinking variable frequency pump. air-conditioning HVAC technology (Shanghai HVAC exchange of technology net publication), 2004-1p9～11).As calculated, under average load rate, have in the branch road of level pressure variable water volume air-conditioner water system of electronic two-way regulating valve, water pump carries merit to have 83.2% to consume on electronic two-way regulating valve approximately.From above existing air-conditioner water system application controls analysis of technology being understood that existing design of air conditioning, is to constitute by professional module, the theory of carrying out " unilateral thinking " by the function of element one by one.Big safety factor is generally adopted in the design of system, thereby causes the equipment low load with strong power, in inefficient, high energy consumption state operation, causes the significant wastage of the energy.
Summary of the invention
Goal of the invention of the present invention provides a kind of installed capacity reduction by 10%～30% that can not only make the water pump of air-conditioner water system, and can make water pump constantly in the most energy-conservation full similar operating condition operation, can reduce the energy-saving comfortable central air conditioner system of no electronic two-way regulating valve of the operation energy consumption of water pump greatly.
The technical scheme that realizes goal of the invention is to solve like this: the energy-saving central air conditioner system of not having electronic two-way regulating valve is made up of the two large divisions: cooling water pump P
2, handpiece Water Chilling Units CH
1Condenser C and the no electronic two-way valve cooling water system formed of cooling tower CT; By handpiece Water Chilling Units CH
1Evaporimeter E, water supply pump P
1, the no electronic two-way regulating valve formed of water knockout drum DW, numerous switch valve K, numerous air conditioning terminal AHU (air processing machine or fan coil), water collector CW chilled water system.The moment cooling symbol lotus information extracting system that has two temperature transmitter T on the cooling water water inlet pipe and water outlet pipe and flow transmitter F to constitute in the cooling water system has two temperature transmitter T and cooling water pump P on the cooling water Inlet and outlet water house steward
2Drive cooling load tracking control system and cooling water pump P that frequency converter IV forms
2The pressure difference transmitter Δ P at two ends and flow sensor F form the total flow resistance measuring system of cooling water system.The moment cold symbol lotus information extracting system that has two temperature transmitter T on the cold water Inlet and outlet water house steward and flow transmitter F to constitute in the chilled water system has two temperature transmitter T and water supply pump P on the cold water Inlet and outlet water house steward
1Drive the refrigeration duty tracking control system that frequency converter IV forms, water supply pump P
1The air conditioning terminal that the pressure difference transmitter Δ P at two ends and flow sensor F form the switch valve K composition formation before the total flow resistance measuring system of chilled water system and each the end-equipment AHU does not move the energy-saving control system of promptly closing.Not having electronic two-way valve energy saving comfortable central air conditioner system technical scheme characteristics is, theory with " System Thinking ", related between the function of whole overall each subsystem of design construction of not having the energy-saving central air conditioner system of electronic two-way valve and subsystem, thereby make structure, more reasonable, the nature of operation, the coordination of entire system, emerge the new characteristic that traditional air-conditioner water system can't be reached: do not have electronic two-way regulating valve, obvious energy-saving effect and brief system architecture.
The present invention compared with prior art, remove cost more expensive, have control to require and the electronic two-way regulating valve of the water pump transmission power that consumption rate is bigger again.The energy saving comfortable central air conditioning system that does not have electronic two-way regulating valve, can not only make the installed capacity of the water pump of air-conditioner water system reduce by 10%～30% approximately, and can make water pump constantly in the most energy-conservation full similar operating condition operation, can reduce the operation energy consumption of water pump greatly.It is calculated that under the prerequisite that satisfies same load, not have the pump energy consumption of electronic two-way regulating valve water branch road, only be have valve water branch road the pump energy consumption 11.3%, energy-conservation effect is quite remarkable, and control system is simplified greatly.The present invention not only can use on the newly-designed comfortableness central air conditioner system, also can be used for the transformation of old air-conditioning system.It is introduced that China all is not energy-conservation in the air-conditioning system 99% of operation,, also will produce huge energy-saving effect in old air-conditioning system transformation if the formation of the system of this patent, control technology scheme are applied.In a word, of the present invention applying must be obtained considerable economic, social benefit and environmental benefit.
Description of drawings
Fig. 1 is the energy saving comfortable central air conditioner system flow chart of no electronic two-way regulating valve of the present invention.
The specific embodiment
Accompanying drawing is specific embodiments of the invention.
Below in conjunction with accompanying drawing particular content of the present invention is described further:
With reference to shown in Figure 1, there is not the energy saving comfortable central air conditioner system of electronic two-way regulating valve, it is made up of the two large divisions: cooling water pump P
2, handpiece Water Chilling Units CH
1Condenser C and the no electronic two-way valve cooling water system formed of cooling tower CT; By handpiece Water Chilling Units CH
1Evaporimeter E, water supply pump P
1, the no electronic two-way valve chilled water system formed of water knockout drum DW, numerous switch valve K, numerous air conditioning terminal AHU (air processing machine or fan coil), water collector CW.The moment cooling symbol lotus information extracting system that has two temperature transmitter T on the cooling water water inlet pipe and water outlet pipe and flow transmitter F to constitute in the cooling water system has two temperature transmitter T and cooling water pump P on the cooling water Inlet and outlet water house steward
2Drive cooling load tracking control system and cooling water pump P that frequency converter IV forms
2The pressure difference transmitter Δ P at two ends and flow sensor F form the total flow resistance measuring system of cooling water system.The moment cold symbol lotus information extracting system that has two temperature transmitter T on the cold water Inlet and outlet water house steward and flow transmitter F to constitute in the chilled water system has two temperature transmitter T and water supply pump P on the cold water Inlet and outlet water house steward
1Drive the refrigeration duty tracking control system that frequency converter IV forms, water supply pump P
1The air conditioning terminal that the pressure difference transmitter Δ P at two ends and flow sensor F form the switch valve K composition formation before the total flow resistance measuring system of chilled water system and each the end-equipment AHU does not use the energy-saving control system of promptly closing.Not having the energy-saving central air conditioner system technical scheme of electronic two-way valve characteristics is, theory with " System Thinking ", related between the function of whole overall each subsystem of design construction of not having the energy-saving central air conditioner system of electronic two-way valve and subsystem, thereby make structure, more reasonable, the nature of operation, the coordination of system, emerge the new characteristic that traditional air-conditioner water system can't be reached: do not have electronic two-way regulating valve, obvious energy-saving effect and brief system architecture.
The inventor herein is formerly in 200410073119.8 apply for a patent, and is with the theory of " System Thinking ", verified theoretically and proposed at region of quadratic resistance law the overall drag coefficient S of any resistance element (the overall drag coefficient S of pipeline in the water circuit system
iOr local resistance component synthesis resistance coefficient S
j) only relevant with its geometric parameter, and and the new theory that has nothing to do by its flow size.
The deep connotation of this theory is, and is the same with circuit for the water circuit system of any complexity, can try to achieve the total overall drag coefficient S of water system by calculating
t, and S
tAlso only with water system in the flow L that geometric parameter is relevant and system is total of each resistance element
tIrrelevant.The change of valve opening in the system, just change has taken place in the geometric parameter of this local resistance element of valve, its overall drag coefficient S
jChange thereupon, thereby cause the overall drag coefficient S that water system is total
tVariation.This phenomenon has reflected that water system is a unified integral body, pulls one hair and move the whole body.
The inventor herein formerly in 200410073119.8 apply for a patent, has proved theoretically that water circuit system at the sufficient and necessary condition of the most energy-conservation complete similar operating condition operation is, at (Δ P
t-H
0)-L (Δ P
t---water pump pressure head, Pa; H
0---water loops system hydrostatic head, Pa; L---pump capacity, m
3/ s) total overall drag coefficient S in the coordinate system
tIn running, keep invariable.Water pump moves on all four operating mode, and 3 powers of power consumption and pump rotary speed are directly proportional, and are the most energy-conservation running statuses.The overall drag coefficient S
tIn running, keep invariable, mean in the water system without any the resistance element that can change geometric parameter, certainly also comprise the electronic two-way regulating valve that can change geometric parameter (or electronic two-way valve is arranged, but aperture is once determining that the aperture that is in operation no longer allows change).The theoretical foundation that Here it is invents the energy saving comfortable central air conditioning system of no electronic two-way regulating valve.
On concrete enforcement, the static hydraulic balancing of water system is regulated extremely important.It is to make flowmeter with the coil pipe of known mass flow characteristic that static hydraulic balancing is regulated, and makes control valve or uses the static hydraulic balancing valve with the isolating valve of coil pipe back, and under the specified available pressure reduction of branch road, the discharge in the adjusting branch road equals the process of metered flow.It also is the main contents that the air-conditioning examination is transferred that static hydraulic balancing is regulated.The purpose that static hydraulic balancing is regulated is to make the discharge of each air conditioning terminal equal metered flow, reaches this requirement, also equals metered flow with regard to the flow that makes each branch road of water system.The essence that static hydraulic balancing is regulated is each the bar branch road and a whole overall drag coefficient minimum, suitable of water system of water supply system.
The relation of air-conditioning total load and supply and return water temperature, flow is as shown in Equation (1):
Q＝M·C
p(t
w2-t
w1) (1)
In the formula:
Q---system's instantaneous always cold (heat) load, W;
M---water system total mass flow rate, kG/s, M=ρ L
t
The density of ρ---water, in the time of 4 ℃, ρ=1000, kG/m
3
C
p---the specific heat at constant pressure of water, in the time of 4 ℃, C
p=4.186, kJ/ (kG ℃);
L
t---water system total volumetric flow rate, m
3/ s;
t
W2---return main's return water temperature, ℃;
t
W1---send the supply mains to send coolant-temperature gage, ℃
In common air-conditioning system, cold water supply water temperature t during refrigeration
W1=7 ℃.When chilled water system is constant flow water system, return water temperature t
W2Be directly proportional with air conditioner load.If the target that flow control system is followed the tracks of is to keep (t
W2-t
W1)=5 ℃, so from formula (1) as can be seen, the variation and the load variations of flow mass M are in direct ratio.At this moment the configuration of control system and flow process are as shown in Figure 1.The sensor of system's setting has: pump head sensor (Δ P) Δ P
Pt, water system always supplies water, temperature sensor (T) t on the backwater main
W2, t
W1, flow sensor (F) L that water system is total
tEvery water pump in parallel is variable frequency pump (this theory all is suitable for cooling water system, chilled water system) in the system.The inventor (document: Cao Qi. the application of System Thinking variable frequency pump. air-conditioning HVAC technology (Shanghai HVAC exchange of technology net publication)) verified in the literary composition, the variable frequency pump allocation plan of " one becomes how fixed " only is applicable to level pressure, flow-changing water system, its energy consumption only and the first power of pump capacity be directly proportional, the energy-saving effect that this scheme obtains is limited.Water pump is moved under the most energy-conservation on all four operating mode, and just system works under transformation power, unsteady flow amount state, and the water pump of every parallel running must be frequency conversion.Simultaneously the author (document: Cao Qi. the application of System Thinking variable frequency pump. air-conditioning HVAC technology (Shanghai HVAC exchange of technology net publication)) proved that also the flow of variable frequency pump is energy-conservation in the literary composition in 100%～70% range of flow.Usually adopt three cold machines to join three variable frequency pumps composition proposal one to one in the Air-conditioner design, the method of air-conditioning system energy adjustment is the control of pump variable frequency make-up water pump platform number, if the flow of every variable frequency pump changes in 100%～70% range of flow, can make cold (heat) power that measures of whole air-conditioning system vary continuously to 21% from 100%, this satisfies the load continually varying control requirement of whole air-conditioning building in season fully, minimum discharge for each cold machine is 70% of a rated value simultaneously, operation to cold machine is as safe as a house, and every variable frequency pump also moves in the most energy-conservation scope simultaneously.
Ignore payload, temporal difference that building orientation causes, and with suitably strengthening the air conditioning terminal design capacity and utilizing the optional functions of fan coil blower fan three speed to remedy difference on each air conditioning area load, add the insensitivity of human body, can suppose that the load variations in each air conditioning zoning of building and each room is synchronous temperature.Because, the load that the air conditioner load mesoclimate causes is main, accounts for usually more than 80%, adds human body blunt to thermotonus, this personnel of ignoring, equipment, towards the load that causes difference in time, can not cause the substantial variation of building air-conditioning effect.
This hypothesis has been arranged, the little switch valve of overall drag coefficient only has been installed, removed the big electronic two-way valve control valve of overall drag coefficient at the end of air-conditioning; The two-way electronic valve of the room air conditioner with blower and coiled tube of consumption maximum in the air-conditioning system is only just opened when coil pipe move in the control, stops the time spent closing, and does not make on-load switch and regulates use.Control system is followed the tracks of total poor (t of backwater, supply water temperature
W2-t
W1)=5 ℃ change the water supply flow of variable frequency pump, the variation of following the trail of the building load.Because system head characteristics is changeless, the requirement of terminal load variations is satisfied in synchronous, the proportional variation of the lift of each end branch inlet outlet pressure differential and water pump, thereby synchronous, the proportional variation of the flow of each terminal flow and water pump simultaneously.Though, control system is to control whole air-conditioning system according to total backwater, supply water temperature difference, and does not know which terminal variation is much, but system is whole, lead one and start whole body, the total load variations in whole building is the temperature sensor t that can be provided with from system's water-main
W2, t
W1The flow sensor L total with water system
tAccurately measure, as shown in Equation (1).During the air-conditioning system load variations, that sensor is at first found is return water temperature t
W2Variation, then according to t
W2With 12 ℃ deviation, control system changes the flow of variable frequency pump according to certain rules, makes t
W2Be tending towards 12 ℃.Yet because the thermal inertia of water system is very big, to just can reflect through long time after the adjusting, therefore control system should adopt intermittent controlled, promptly transfer, stop, waiting system has been reacted, and regulates again, perhaps adopts the Si Mite Prediction Control that is specifically designed to big inertia system control.
Switch valve that air conditioning terminal is provided with, the energy-conserving action that has played time spent not Turn Off Lights When Leaving.
Because water system does not have to change the electronic two-way regulating valve of geometric parameter, the minimum overall drag coefficient S that system is total
t=Const, water pump just can move on instantaneous minimum drag characteristic curve automatically, and each air conditioning terminal also increases and decreases flow automatically synchronously pari passu, the variation of follow load, and water pump is constantly spontaneously in the most energy-conservation full similar operating condition operation.The control, structure that do not have the comfort air conditioning system system of electronic two-way regulating valve is than there being the more simple of electronic two-way regulating valve air-conditioning system, moves more energy-conservationly, thereby performance is more superior.
Embodiment 1
The branch road water pipe has or not the comparison of electronic two-way valve resistance.As follows for McQuay MDM-0813 type combination type air processor basic parameter:
Air quantity: 20000m
3/ h; Coil arrangement: 6 combs; Rating under air conditioning condition: 151kW;
This combination type air processor of water inlet pipe and water outlet pipe caliber: DN65 is applicable to about 1200m
2The all-air conditioning system of building.
The calculating of discharge: 7.21L/s, 26.0m
3/ h; Water flow velocity: 2.17m/s in the water pipe;
Coil pipe water resistance: 117kPa.
According to principle of automatic control, when choosing electronic two-way regulating valve in the coil pipe water route of giving MDM-0813 type combination type air processor, the valve weight coefficient W of two-way regulating valve
v=0.5 (recommends W
v=0.3～0.7, choose median), the pressure drop of at this moment selecting control valve for use is 120kPa, calculates the flow coefficient k of control valve
v=23.73.
Look into SIMENS two-way regulating valve characteristic, select the electronic two-way valve of DN50VVF41.50 type, its K
V=31;
Calculate this valve and pack in the coil pipe water route of MDM-0813 type combination type air processor when metered flow, the pressure drop at valve two ends is 0.70bar actual valve measures and weights coefficient W
v=0.375.117+70=187kPa is exactly the available pressure of this water branch road so.Suppose that be 2400h running time in air-conditioning year, the electricity charge are 1.00 yuan/kWh.Water pump carry the specified water yield on the branch road or the power consumption on the branch road valve calculate by formula (2):
W
v＝(ΔP
v·L)/(η
p·η
m·η
m) (2)
In the formula:
w
v---water pump carries the specified water yield on the water branch road or the power consumption on the valve, W;
Δ P
v---Pa falls in water branch road or valve two ends hydraulic pressure;
L---by the flow of valve, m
3/ h;
η
p---water pump flow efficiency, declared working condition η
p≈ 0.85;
η
m---pump motor efficient, declared working condition η
p≈ 0.87;
η
In---frequency converter efficient, declared working condition η
p≈ 98%.
1. for level pressure, flow-changing water system
1). the declared working condition water pump is carried the power consumption of the specified water yield on valve, is corresponding declared working condition parameter substitution formula (2) is calculated: 977W; Branch road water pump total power consumption is 2610W;
2). for electronic two-way valve level pressure unsteady flow amount air-conditioning system is arranged, at air-conditioning during season during equal rate of load condensate 58%, branch road discharge is 58% of metered flow, be 4.18L/s, the situation that available pressure is constant, pressure drop 147.7kPa on the valve, power consumption is 834.7W, the operation electricity charge of annual water pump consumption on valve are 2003.2 yuan; The branch road total power consumption is 1513.8W, and the operation electricity charge of annual water pump consumption on branch road are 3633.1 yuan.
2. for no electronic two-way valve water circuit system, water pump is in the most energy-conservation full similar operating condition operation all the time
1). the power consumption of declared working condition water branch road is the power consumption on the coil pipe, has considered frequency converter, and power consumption is 1666.3W;
2). at air-conditioning during season during equal rate of load condensate 58%, branch road discharge is 58% of metered flow, be 4.18L/s, the power consumption of water branch road is 325.1W, the operation electricity charge of annual water pump consumption on branch road are 780.2 yuan, be that 21.5% of the electronic two-way regulating valve water system whole year operation electricity charge are arranged, the saving rate is 78.5%, and energy-saving effect is very remarkable.The price of the electronic two-way regulating valve of a cover DN50 is 3300 yuan simultaneously, about 4500 yuan of an AI of supporting temperature sensor and building control system, AO interface software controller prices, the system that removes electronic two-way regulating valve can save about 7800 yuan of capital cost of equipment.This is the economic benefit that a packaged air conditioner produces, if system is very big, air-conditioner is very many, and it will be very considerable saving the operation electricity charge and one-time investment.
Because the air-conditioner water system that this patent proposes does not have electronic two-way valve and control system thereof, water pump is constantly spontaneously in the most energy-conservation full similar operating condition operation.Thereby the formation of system, control are simple, and investment is saved, and energy-saving effect is remarkable, energy-conservation theory novelty.Therefore, promoting the use of of this patent will produce huge economic benefit, social benefit, environmental benefit.
Claims (5)
1, the energy saving comfortable central air conditioner system of no electronic two-way regulating valve comprises two big parts: cooling water pump (P
2), handpiece Water Chilling Units (CH
1) condenser (C) and the no electronic two-way valve cooling water system formed of cooling tower (CT); By handpiece Water Chilling Units (CH
1) evaporimeter (E), water supply pump (P
1), switch valve (K), each air conditioning terminal air processing machine or fan coil (AHU) on the water knockout drum (DW), each branch road, the no electronic two-way regulating valve chilled water system that water collector (CW) is formed, it is characterized in that also comprising that by the instantaneous cooling load information extracting system that has two temperature transmitters (T) on the cooling water water inlet pipe and water outlet pipe and flow transmitter (F) to constitute in the cooling water system two temperature transmitters (T) and cooling water pump (P on the cooling water Inlet and outlet water house steward are arranged
2) drive cooling load tracking control system and cooling water pump (P that frequency converter (IV) is formed
2) pressure difference transmitter (Δ P) at two ends and flow sensor (F) form the total flow resistance measuring system of cooling water system; The instantaneous refrigeration duty information extracting system that has two temperature transmitters (T) on the cold water Inlet and outlet water house steward and flow transmitter (F) to constitute in the chilled water system; Two temperature transmitters (T) and water supply pump (P on the cold water Inlet and outlet water house steward are arranged
1) drive the refrigeration duty tracking control system that frequency converter (IV) is formed; Water supply pump (P is arranged
1) pressure difference transmitter (Δ P) at two ends and flow sensor (F) form the total flow resistance measuring system of chilled water system and the preceding switch valve K of each end-equipment (AHU) and form the air conditioning terminal that constitutes and do not move the energy-saving control system of promptly closing.
2, the energy saving comfortable central air conditioner system of no electronic two-way regulating valve according to claim 1 is characterized in that chilled water system and cooling water system neither one are used for the electronic two-way valve of Load Regulation.
3, the energy saving comfortable central air conditioner system of no electronic two-way regulating valve according to claim 1 is characterized in that from water supply pump (P
1) import and export and extract refrigeration duty change information and the variation of accurate tracking refrigeration duty; Be from cooling water pump (P
2) import and export and extract cooling load change information and the variation of accurate tracking cooling load.
4, the energy saving comfortable central air conditioner system of no electronic two-way regulating valve according to claim 1 is characterized in that the water supply pump (P of frequency conversion
1) and cooling water pump (P
2) spontaneously under the most energy-conservation full similar operating condition, move constantly.
5, the energy saving comfortable central air conditioner system of no electronic two-way regulating valve according to claim 1 is characterized in that, each air conditioning terminal is to follow the tracks of air conditioner load synchronously to change in the whole air-conditioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100732523A CN100427842C (en) | 2004-11-10 | 2004-11-10 | Energy saving comfortable central air-conditioning system without electric two-way regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100732523A CN100427842C (en) | 2004-11-10 | 2004-11-10 | Energy saving comfortable central air-conditioning system without electric two-way regulating valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1605809A CN1605809A (en) | 2005-04-13 |
| CN100427842C true CN100427842C (en) | 2008-10-22 |
Family
ID=34765280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100732523A Expired - Fee Related CN100427842C (en) | 2004-11-10 | 2004-11-10 | Energy saving comfortable central air-conditioning system without electric two-way regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100427842C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102809195B (en) * | 2011-05-30 | 2015-12-16 | 昆山台佳机电有限公司 | From the water source heat pump intelligent centralized-control all-in-one machine of variable-flow |
| CN102980275A (en) * | 2012-12-20 | 2013-03-20 | 梁耀文 | Central air conditioning running regulating and monitoring control system and energy balance regulating method of old network running |
| CN103245037A (en) * | 2013-05-30 | 2013-08-14 | 谢乐 | Method and system for controlling air-conditioning variable water temperatures |
| CN104236015B (en) * | 2014-06-20 | 2018-01-23 | 沈阳安新自动化控制有限公司 | Energy-saving control method and system based on the switching of Port-Controlled Hamiltonian Theory weather compensation |
| CN105258246A (en) * | 2015-10-10 | 2016-01-20 | 珠海格力电器股份有限公司 | Central air conditioning system and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1047738A (en) * | 1996-07-30 | 1998-02-20 | Takasago Thermal Eng Co Ltd | Vav type air conditioning system and its control method |
| CN2331900Y (en) * | 1998-08-05 | 1999-08-04 | 广州新菱冷气集团有限公司 | Variable frequency energy-saving controller for water pump of air conditioner |
| CN1309271A (en) * | 2001-02-27 | 2001-08-22 | 贵州华城智能系统工程有限公司 | Flow-changing energy-saving control system for direct combustion machine |
| JP2001241729A (en) * | 2000-03-01 | 2001-09-07 | Hitachi Ltd | Cooling water supply system of refrigerating machine for air conditioning |
| CN1415915A (en) * | 2002-08-27 | 2003-05-07 | 贵州华城楼宇科技有限公司 | Self-adapting energy saving control device with variable flux for compression type central conditioner |
-
2004
- 2004-11-10 CN CNB2004100732523A patent/CN100427842C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1047738A (en) * | 1996-07-30 | 1998-02-20 | Takasago Thermal Eng Co Ltd | Vav type air conditioning system and its control method |
| CN2331900Y (en) * | 1998-08-05 | 1999-08-04 | 广州新菱冷气集团有限公司 | Variable frequency energy-saving controller for water pump of air conditioner |
| JP2001241729A (en) * | 2000-03-01 | 2001-09-07 | Hitachi Ltd | Cooling water supply system of refrigerating machine for air conditioning |
| CN1309271A (en) * | 2001-02-27 | 2001-08-22 | 贵州华城智能系统工程有限公司 | Flow-changing energy-saving control system for direct combustion machine |
| CN1415915A (en) * | 2002-08-27 | 2003-05-07 | 贵州华城楼宇科技有限公司 | Self-adapting energy saving control device with variable flux for compression type central conditioner |
Non-Patent Citations (2)
| Title |
|---|
| 供热空调系统运行管网管段阻力数测算新方法. 冯小平.建筑热能通风空调，第23卷第4期. 2004 |
| 供热空调系统运行管网管段阻力数测算新方法. 冯小平.建筑热能通风空调，第23卷第4期. 2004 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1605809A (en) | 2005-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103383121B (en) | Regional air conditioner dispersion secondary pumping system | |
| CN102043907B (en) | Real-time cold load determination method of air-conditioner room | |
| CN104633857B (en) | Air conditioner energy-saving optimization control method and device | |
| CN102410597B (en) | Ground source heat pump air-conditioning system device based on peak regulation and energy storage as well as control and operation method thereof | |
| CN102269444A (en) | Energy control system and method of heat supply and cold water supply circulation | |
| CN206360877U (en) | A kind of optimal control for energy saving system of variable frequency pump parallel running | |
| CN102003736B (en) | Heating load stage quality regulation method | |
| CN103375878A (en) | Group control method for central air conditioning refrigerating unit | |
| CN109269021A (en) | Air conditioner system energy saving running optimizatin dispatching method | |
| CN102094798B (en) | Variable flow adjusting method for heat supply network circulating pump in equal resistance interval | |
| CN101806488B (en) | Energy-saving cooling tower cold supply system and cold supply method thereof | |
| CN105864016B (en) | A kind of more water pump distributing system variable water volume runing adjustment methods of open type | |
| CN103452824A (en) | Fan and water pump energy saving system adopting minimum power algorithm based on flow-power curve | |
| CN210320428U (en) | Energy-saving intelligent control system combining central air conditioner and central heating | |
| CN101922783A (en) | Enthalpy control-based method and system for controlling energy conservation of air conditioner | |
| CN109917646A (en) | A kind of district cooling and heating equipment optimization operating system and method | |
| CN1321295C (en) | Cold-hot electric combined integrated energy-saving intelligent control device | |
| CN109519360A (en) | A kind of chemical circulation cooling water system water pump assembly optimized operation project plan comparison determines method | |
| CN109945460A (en) | A kind of air conditioning cooling water secondary pump variable volume system and control method | |
| CN100427842C (en) | Energy saving comfortable central air-conditioning system without electric two-way regulating valve | |
| CN203258800U (en) | Central air conditioner dynamic tracking energy-saving management control system | |
| CN201680530U (en) | Primary pump variable flow system with evaporative water chiller | |
| CN105571089A (en) | Energy-saving intelligent ecological central air conditioning device | |
| CN102410596B (en) | Combined cooling and power scheduling system of water source heat pump and scheduling method thereof | |
| CN203443258U (en) | Primary pump variable flow control system of refrigeration plant room |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shenzhen Hongshida Industrial Development Technology Co., Ltd. Assignor: Cao Qi Contract record no.: 2011440020276 Denomination of invention: Energy saving comfortable central air-conditioning system without electric two-way regulating valve Granted publication date: 20081022 License type: Exclusive License Open date: 20050413 Record date: 20110705 |
|
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN HONGSHIDA INDUSTRIAL DEVELOPMENT TECHNOLO Free format text: FORMER OWNER: CAO QI Effective date: 20110801 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yanbing Inventor before: Cao Qi Inventor before: Zhang Chen Inventor before: Cao Qiuyun Inventor before: Cao Chunli |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 710075 XI AN, SHAANXI PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE Free format text: CORRECT: INVENTOR; FROM: CAO QI ZHANG CHEN CAO QIUYUN CAO CHUNLI TO: LI YANBING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110801 Address after: 518000, room two, building 007, Jiuzhou building, No. twelve South Road, Nanshan District, Shenzhen, Guangdong, Patentee after: Shenzhen Hongshida Industrial Development Technology Co., Ltd. Address before: Beilin District Xianning West Road 710075, Shaanxi city of Xi'an province No. 28 Patentee before: Cao Qi |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081022 Termination date: 20131110 |