CN103245037A - Method and system for controlling air-conditioning variable water temperatures - Google Patents

Method and system for controlling air-conditioning variable water temperatures Download PDF

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Publication number
CN103245037A
CN103245037A CN2013102089617A CN201310208961A CN103245037A CN 103245037 A CN103245037 A CN 103245037A CN 2013102089617 A CN2013102089617 A CN 2013102089617A CN 201310208961 A CN201310208961 A CN 201310208961A CN 103245037 A CN103245037 A CN 103245037A
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air
water temperature
conditioner
conditioner host
room
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CN2013102089617A
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Chinese (zh)
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谢乐
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谢乐
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Priority to CN2013102089617A priority Critical patent/CN103245037A/en
Publication of CN103245037A publication Critical patent/CN103245037A/en

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Abstract

The invention provides a method for controlling air-conditioning variable water temperatures, which comprises the steps of 1, collecting data of indoor temperatures of rooms, 2, calculating air-conditioning host water temperatures required by the rooms, calculating the air-conditioning host water temperature required by each area, and calculating required values of the air-conditioning host water temperatures of a whole central air-conditioning system, and 3, changing the current air-conditioning water temperatures according to the required values of the air-conditioning host water temperatures of the whole central air-conditioning system. In addition, the invention further provides a system for controlling the air-conditioning variable water temperatures, which comprises indoor air temperature sensors, water temperature controllers, three signal channels, a control center and a central air-conditioning host controller. The method and the system meet a requirement on comfortability, save the energy consumed by an air-conditioning host to the greatest extent, and can meet comfortable and energy-saving requirements under conditions such as various climatic conditions, various using environments and various using time.

Description

A kind of air-conditioning becomes temperature control method of water and system thereof
Technical field
The present invention relates to air-conditioning control field, be specifically related to control method and the system thereof of a kind of air-conditioner host water supply water temperature or backwater water temperature.
 
Background technology
Now between the main frame and room conditioning central air-conditioning end-equipment of main flow central air conditioner system, circulate to transmit energy by water, summer air-conditioning main frame water supply water temperature and backwater water temperature are generally 7/12 ℃, also have and adopt 6/13 ℃, technical scheme such as 5/13 ℃, its common feature is annual fixedly supply and return water temperature, can satisfy fully loaded refrigeration demand under the hot weather condition whole year, but the oepration at full load time generally only accounts for about 3% of the annual operation of air conditioner time, all the other times can be improved the water temperature operation, if fixedly water temperature operation still, can cause the waste of the energy, increase use cost.
According to pertinent literature and a large amount of manufacturer's measured data, 1 ℃ of the every raising of air-conditioner host water temperature coolant-temperature gage, fractional energy savings is 3~4%, air-conditioner host water temperature water supply water temperature can change in 7~15 ℃ of scopes in the whole refrigeration phase, maximum instantaneous fractional energy savings can reach about 30%, and the energy saving space is very big.During the heat supply of heat pump type air conditioner main frame, its air-conditioner host water temperature backwater water temperature is generally 40/45 ℃, 45/50 ℃ or 50/55 ℃, is to arrange by satisfying the coldest situation, reduces the hot water temperature and can obtain same energy-saving effect.
At present, becoming the water temperature The Application of Technology roughly has following 3 kinds of modes: 1, manually set the air-conditioner host water temperature by rule of thumb, its operation room interval is very long, and the water temperature setting value is too conservative, and the very big energy saving space is still arranged; 2, weather compensation way, the place of inner load variations being taken as the leading factor factor is inapplicable, the big and bigger factory building of amplitude of variation as market, dining room, internal calorific power; 3, calculate water temperature according to actual measurement main frame refrigerating capacity, this mode is not considered the non-linear heat transfer characteristic of air-conditioning central air-conditioning end-equipment, and theory waits perfect.
 
Summary of the invention
At above-mentioned the deficiencies in the prior art part, the purpose of this invention is to provide a kind of air-conditioning and become temperature control method of water, utilize the air themperature of air conditioning area to regulate the air-conditioner host water temperature, can be under the condition that the comfortableness that satisfies refrigeration or heat requires, control air-conditioner host water supply water temperature or backwater water temperature reach the effect of saving the air-conditioner host energy consumption.
Simultaneously, the present invention also provides a kind of air-conditioning to become water temperature control system.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of air-conditioning becomes temperature control method of water, and this method air conditioning area is set to a plurality of zones, and each zone comprises one or more rooms, and this method specifically may further comprise the steps:
Step 1 is gathered the data of the indoor temperature in each room by room air temperature sensor;
Step 2, calculate the air-conditioner host water temperature that each room needs, calculate the air-conditioner host water temperature that each zone needs then, calculate the air-conditioner host water temperature requirements of whole central air conditioner system at last: during refrigeration, select the minimum of a value of the air-conditioner host water temperature that each room needs as the air-conditioner host water temperature requirements of whole central air conditioner system; Heat when cold, select the maximum of the air-conditioner host water temperature that each room needs as the air-conditioner host water temperature requirements of whole central air conditioner system;
Step 3 changes current air-conditioner host water temperature according to the air-conditioner host water temperature requirements of whole central air conditioner system.
Correspondingly, a kind of air-conditioning of said method of realizing provided by the invention becomes water temperature control system, and this system comprises the central air conditioner main machine controller, and this system also comprises room air temperature sensor, water temperature regulater, signalling channel , signalling channel , signalling channel And control centre; Room air temperature sensor is installed in the air-conditioning return air inlet place in each room; Air conditioning area is set to a plurality of zones, and each zone comprises one or more rooms, and a water temperature regulater is installed in each zone; Room air temperature sensor is gathered the data of the indoor temperature in each room, passes through signalling channel Input water temperature regulater, water temperature regulater calculate air-conditioner host water temperature and each the regional air-conditioner host water temperature that needs that each room needs, and pass through signalling channel Input control centre, the air-conditioner host water temperature requirements of whole central air conditioner system calculates in control centre, passes through signalling channel Input central air conditioner main machine controller is to change the air-conditioner host water temperature; Above-mentioned control centre is host computer or is made up of host computer and system server.
Compared to existing technology, the present invention has following beneficial effect:
1, because each room is equipped with room air temperature sensor, and calculate the air-conditioner host water temperature requirements of whole central air conditioner system according to the least favorable room, that is: during refrigeration, select the minimum of a value of the air-conditioner host water temperature that each room needs as the air-conditioner host water temperature requirements of whole central air conditioner system; When heating, select the maximum of the air-conditioner host water temperature that each room needs as the air-conditioner host water temperature requirements of whole central air conditioner system.Like this, both satisfy the needs of comfortableness, saved the air-conditioner host energy consumption again to greatest extent;
2, because each room is equipped with room air temperature sensor, no matter how weather conditions change, also no matter environment for use how to change or (with) requirements of different service times, the system of method of the present invention and this method of employing, still calculate the air-conditioner host water temperature requirements of whole central air conditioner system according to the least favorable room, guaranteed not only comfortable but also energy-conservation;
3, the air-conditioner host water temperature that each zone needs is calculated in the subregion, has shortened data transmission link, has both ensured reliability of data transmission, has saved cost again.
 
Description of drawings
Fig. 1 is the flow chart that a kind of air-conditioning becomes temperature control method of water;
Fig. 2 is that a kind of air-conditioning becomes the water temperature control system structure chart;
Fig. 3 is a kind of structure chart that becomes water temperature control system embodiment with the air-conditioning of gateway;
Fig. 4 is the structure chart that a kind of air-conditioning of bus connecting mode becomes water temperature control system embodiment.
 
The specific embodiment
Fig. 1 is the flow chart that a kind of air-conditioning of the present invention becomes temperature control method of water, and this method air conditioning area is set to a plurality of zones, and each zone comprises one or more rooms, and this method comprises the steps:
Step 1 is gathered the data of the indoor temperature in each room by room air temperature sensor;
Step 2, calculate the air-conditioner host water temperature that each room needs, calculate the air-conditioner host water temperature that each zone needs then, calculate the air-conditioner host water temperature requirements of whole central air conditioner system at last: during refrigeration, select the minimum of a value of the air-conditioner host water temperature that each room needs as the air-conditioner host water temperature requirements of whole central air conditioner system; Heat when cold, select the maximum of the air-conditioner host water temperature that each room needs as the air-conditioner host water temperature requirements of whole central air conditioner system;
Step 3 changes current air-conditioner host water temperature according to the air-conditioner host water temperature requirements of whole central air conditioner system.
During the central air conditioner system initial start, the initial water temperature of air-conditioner host water temperature is controlled in accordance with the following methods and moved: during refrigeration, the initial water temperature of air-conditioner host water temperature is the cold water temperature under the design conditions; When heating, the initial water temperature of air-conditioner host water temperature is the hot water temperature under the design conditions.
As a preferred embodiment of the present invention, in above-mentioned steps two, a water temperature regulater is installed in each zone, water temperature regulater is gathered the temperature signal of all room air temperature sensors of one's respective area, and calculate the air-conditioner host water temperature that air-conditioner host water temperature that each room needs and each zone need, send to control centre then, calculate the air-conditioner host water temperature requirements of whole central air conditioner system by control centre, detailed step is as follows:
Room design refrigerating capacity e0 Ji, e0 JiBe the room design refrigerating capacity of calculating according to country and the existing HVAC design specification of industry, the specified refrigerating capacity e1 of central air-conditioning end-equipment Ji, refrigeration performance attenuation coefficient θ Ji, θ Ji=s Ji/ e1 Ji, s JiMeasured value for central air-conditioning end-equipment refrigerating capacity under declared working condition; Room design heating capacity h0ji, the specified heating capacity h1 of central air-conditioning end-equipment Ji, heating performance attenuation coefficient β Ji, β Ji=p Ji/ h1 Ji, p JiMeasured value for central air-conditioning end-equipment heating capacity under declared working condition;
The design temperature in each room is (A Ji-a Ji) ℃~(A Ji+ a Ji) ℃, each room current actual temperature is B Ji℃, current air-conditioner host water temperature is T1;
The air-conditioner host water temperature that each room needs in each zone is T2 Ji, T2 JiCalculate according to following method:
When 1) freezing:
1. if B Ji<(A Ji-a Ji), T2 then Ji=T1+(A Ji-a Ji-B Ji) * (θ Ji* e1 Ji/ e0 Ji) 1.793
2. if (A Ji-a Ji) ≦ B Ji<(A Ji-a Ji* λ), T2 then Ji=T1+(A Ji-B Ji) * (e0 Ji/ θ Ji* e1 Ji) 2.06;
3. if (A Ji-a Ji* λ) ≦ B Ji≦ (A Ji+ a Ji* λ), T2 then Ji=T1;
4. if (A Ji+ a Ji* λ)<B Ji≦ (A Ji+ a Ji), T2 then Ji=T1+(A Ji-B Ji) * (e0 Ji/ θ Ji* e1 Ji) 1.27
5. if B Ji(A Ji+ a Ji), T2 then Ji=T1+(A Ji+ a Ji-B Ji) * (θ Ji* e1 Ji/ e0 Ji) 2.355
Water temperature regulater is from the air-conditioner host water temperature T 2 of each room needs in each zone JiIn select minimum of a value air-conditioner host water temperature that each zone needs as this, send to control centre, control centre selects minimum of a value as the air-conditioner host water temperature requirements of whole central air conditioner system from air-conditioner host water temperatures that all each zones need;
When 2) heating:
1. if B Ji<(A Ji-a Ji), T2 then Ji=T1+(A Ji-a Ji-B Ji) * (β Ji* h1 Ji/ h0 Ji) 9.63
2. if (A Ji-a Ji) ≦ B Ji<(A Ji-a Ji* λ), T2 then Ji=T1+(A Ji-B Ji) * (β Ji* h1 Ji/ h0 Ji) 4.81
3. if (A Ji-a Ji* λ) ≦ B Ji≦ (A Ji+ a Ji* λ), T2 then Ji=T1;
4. if (A Ji+ a Ji* λ)<B Ji≦ (A Ji+ a Ji), T2 then Ji=T1+(A Ji-B Ji) * (β Ji* h1 Ji/ h0 Ji) 4.06
5. if B Ji(A Ji+ a Ji), T2 then Ji=T1+(A Ji+ a Ji-B Ji) * (β Ji* h1 Ji/ h0 Ji) 8.78
Water temperature regulater is from the air-conditioner host water temperature T 2 of the needs in each room in each zone JiIn select maximum air-conditioner host water temperature that each zone needs as this, send to control centre, control centre selects maximum as the air-conditioner host water temperature requirements of whole central air conditioner system from air-conditioner host water temperatures that all each zones need;
More than various in:
Subscript j is zone number, and j is the integer of 2~n, and n is the zone sum;
Subscript i room number, i are the integer of 1~f, and f is each regional room number;
A JiMedian for the design temperature in each room;
a JiFor the design temperature in each room with A JiCentered by the leeway value.
λ is a JiCoefficient, λ=0.4~0.7.
Median as the design temperature in certain room is 22 ℃, with A JiCentered by the leeway value be 1 ℃, i.e. A Ji=22 ℃, a Ji=1 ℃, then: the design temperature in this certain room is 22-1 ℃~22+1 ℃, just 21 ℃~23 ℃.
A JiGenerally arranged as required by the room user.With A JiCentered by the leeway value can by the design department of central air conditioner system according to industry standard and (or) related specifications determines that establishing this value is with A JiCentered by design leeway value, a JiCan be taken as with A JiCentered by design leeway value, as a preferred embodiment of the present invention, a JiCan be taken as with A JiCentered by design leeway value 0.4~0.7.
Above-mentioned all computing formula are through repeatedly repetition test research, ensureing under the prerequisite that comfortableness needs, save the empirical equation of air-conditioner host energy consumption again to greatest extent, the air-conditioner host water temperature requirements of the whole central air conditioner system of calculating according to above-mentioned all computing formula, maximum instantaneous fractional energy savings can reach about 20%.
If the air-conditioner host water temperature requirements of the above-mentioned whole central air conditioner system that calculates is less than the given lower limit of air-conditioner host manufacturer, then the air-conditioner host water temperature requirements value of whole central air conditioner system is the given lower limit of air-conditioner host manufacturer; If the air-conditioner host water temperature requirements of the whole central air conditioner system that calculates is greater than the given upper limit of air-conditioner host manufacturer, then the air-conditioner host water temperature requirements value of whole central air conditioner system is the given upper limit of air-conditioner host manufacturer.
In the above-mentioned steps, change the air-conditioner host water temperature, both can change air-conditioner host water supply water temperature, also can change air-conditioner host backwater water temperature, correspondingly: as changing air-conditioner host water supply water temperature, then: the air-conditioner host water temperature that each room needs is the air-conditioner host water supply water temperature that each room needs, the air-conditioner host water temperature that each zone needs is the air-conditioner host water supply water temperature that each zone needs, the air-conditioner host water temperature requirements of whole central air conditioner system is the air-conditioner host water supply water temperature requirements of whole central air conditioner system, and current air-conditioner host water temperature T 1 is current air-conditioner host water supply water temperature T 1; As change air-conditioner host backwater water temperature, then: the air-conditioner host water temperature that each room needs is the air-conditioner host backwater water temperature that each room needs, the air-conditioner host water temperature that each zone needs is the air-conditioner host backwater water temperature that each zone needs, the air-conditioner host water temperature requirements of whole central air conditioner system is the air-conditioner host backwater water temperature requirements of whole central air conditioner system, and current air-conditioner host water temperature T 1 is current air-conditioner host backwater water temperature T 1.
Adopt a kind of air-conditioning of this method to become water temperature control system, as shown in Figure 2, this system comprises room air temperature sensor 1, water temperature regulater 3, signalling channel 2, signalling channel 4, signalling channel 6, control centre 5 and central air conditioner main machine controller 7; Room air temperature sensor 1 is installed in the air-conditioning return air inlet place in each room; Air conditioning area is set to a plurality of zones, and each zone comprises one or more rooms, and a water temperature regulater 3 is installed in each zone; Room air temperature sensor 1 is gathered the data of the indoor temperature in each room, passes through signalling channel 2 input water temperature regulaters 3, water temperature regulater 3 calculate air-conditioner host water temperature and each the regional air-conditioner host water temperature that needs that each room needs, and pass through signalling channel 4 input control centres 5, the air-conditioner host water temperature requirements of whole central air conditioner system calculates in control centre 5, passes through signalling channel 6 input central air conditioner main machine controllers 7 are to change the air-conditioner host water temperature.
In order to ensure safety, the reliable communication of control centre and central air conditioner main machine controller, air-conditioning becomes water temperature control system and also comprises gateway 8, and gateway 8 is arranged between control centre 5 and the central air conditioner main machine controller 7, and gateway 8 is with signalling channel 6 are divided into signalling channel A9 and signalling channel B10 two parts, control centre 5 passes through signalling channel successively A9, gateway 8 and signalling channel B10 is connected with central air conditioner main machine controller 7, as shown in Figure 3.
Fig. 4 is the system diagram that air-conditioning of the present invention becomes wherein a kind of specific embodiment of water temperature control system, and among Fig. 4, water temperature regulater 3, control centre 5, gateway 8 and central air conditioner main machine controller 7 are connected and communicate by letter by bus 11.Among Fig. 4, air conditioning area is set to n zone, and air-conditioner host water temperature and each the regional air-conditioner host water temperature that needs that each room needs calculated in the subregion, shortened data transmission link, both ensured reliability of data transmission, saved cost again.Air conditioning area refers to carry out the zone that all rooms of air-conditioning constitute.
Air-conditioning becomes in the water temperature control system, and water temperature regulater comprises multi channel signals input/output module, CPU and memory cell, and the data of the indoor temperature in each room that room air temperature sensor collects are passed through signalling channel Input multi channel signals input/output module, then by multi channel signals input/output module input CPU, CPU calculates air-conditioner host water temperature and each the regional air-conditioner host water temperature that needs that each room needs.

Claims (10)

1. an air-conditioning becomes temperature control method of water, and this method air conditioning area is set to a plurality of zones, and each zone comprises one or more rooms, it is characterized in that: this method comprises the steps:
Step 1 is gathered the data of the indoor temperature in each room by room air temperature sensor;
Step 2, calculate the air-conditioner host water temperature that each room needs, calculate the air-conditioner host water temperature that each zone needs then, calculate the air-conditioner host water temperature requirements of whole central air conditioner system at last: during refrigeration, select the minimum of a value of the air-conditioner host water temperature that each room needs as the air-conditioner host water temperature requirements of whole central air conditioner system; Heat when cold, select the maximum of the air-conditioner host water temperature that each room needs as the air-conditioner host water temperature requirements of whole central air conditioner system;
Step 3 changes current air-conditioner host water temperature according to the air-conditioner host water temperature requirements of whole central air conditioner system.
2. a kind of air-conditioning as claimed in claim 1 becomes temperature control method of water, it is characterized in that: in described step 2, a water temperature regulater is installed in each zone, water temperature regulater is gathered the temperature signal of all room air temperature sensors of one's respective area, calculate the air-conditioner host water temperature that each room needs, calculate the air-conditioner host water temperature that each zone needs then, send to control centre, calculated the air-conditioner host water temperature requirements of whole central air conditioner system at last by control centre, detailed step is as follows:
Room design refrigerating capacity e0 Ji, e0 JiBe the room design refrigerating capacity of calculating according to country and the existing HVAC design specification of industry, the specified refrigerating capacity e1 of central air-conditioning end-equipment Ji, refrigeration performance attenuation coefficient θ Ji, θ Ji=s Ji/ e1 Ji, s JiFor being the measured value of central air-conditioning end-equipment refrigerating capacity under the declared working condition; Room design heating capacity h0 Ji, the specified heating capacity h1 of central air-conditioning end-equipment Ji, heating performance attenuation coefficient β Ji, β Ji=p Ji/ h1 Ji, p JiMeasured value for central air-conditioning end-equipment heating capacity under the declared working condition;
The design temperature in each room is (A Ji-a Ji) ℃~(A Ji+ a Ji) ℃, each room current actual temperature is B Ji℃, current air-conditioner host water temperature is T1;
The air-conditioner host water temperature that each room needs in each zone is T2 Ji, T2 JiCalculate according to following method:
When 1) freezing:
1. if B Ji<(A Ji-a Ji), T2 then Ji=T1+(A Ji-a Ji-B Ji) * (θ Ji* e1 Ji/ e0 Ji) 1.793
2. if (A Ji-a Ji) ≦ B Ji<(A Ji-a Ji* λ), T2 then Ji=T1+(A Ji-B Ji) * (e0 Ji/ θ Ji* e1 Ji) 2.06;
3. if (A Ji-a Ji* λ) ≦ B Ji≦ (A Ji+ a Ji* λ), T2 then Ji=T1;
4. if (A Ji+ a Ji* λ)<B Ji≦ (A Ji+ a Ji), T2 then Ji=T1+(A Ji-B Ji) * (e0 Ji/ θ Ji* e1 Ji) 1.27
5. if B Ji(A Ji+ a Ji), T2 then Ji=T1+(A Ji+ a Ji-B Ji) * (θ Ji* e1 Ji/ e0 Ji) 2.355
Water temperature regulater is from the air-conditioner host water temperature T 2 of each room needs in each zone JiIn select minimum of a value air-conditioner host water temperature that each zone needs as this, send to control centre, control centre selects minimum of a value as the air-conditioner host water temperature requirements of whole central air conditioner system from air-conditioner host water temperatures that all each zones need;
When 2) heating:
1. if B Ji<(A Ji-a Ji), T2 then Ji=T1+(A Ji-a Ji-B Ji) * (β Ji* h1 Ji/ h0 Ji) 9.63
2. if (A Ji-a Ji) ≦ B Ji<(A Ji-a Ji* λ), T2 then Ji=T1+(A Ji-B Ji) * (β Ji* h1 Ji/ h0 Ji) 4.81
3. if (A Ji-a Ji* λ) ≦ B Ji≦ (A Ji+ a Ji* λ), T2 then Ji=T1;
4. if (A Ji+ a Ji* λ)<B Ji≦ (A Ji+ a Ji), T2 then Ji=T1+(A Ji-B Ji) * (β Ji* h1 Ji/ h0 Ji) 4.06
5. if B Ji(A Ji+ a Ji), T2 then Ji=T1+(A Ji+ a Ji-B Ji) * (β Ji* h1 Ji/ h0 Ji) 8.78
Water temperature regulater is from the air-conditioner host water temperature T 2 of the needs in each room in each zone JiIn select maximum air-conditioner host water temperature that each zone needs as this, send to control centre, control centre selects maximum as the air-conditioner host water temperature requirements of whole central air conditioner system from air-conditioner host water temperatures that all each zones need;
More than various in:
Subscript j is zone number, and j is the integer of 2~n, and n is the zone sum;
Subscript i room number, i are the integer of 1~f, and f is each regional room number;
A JiMedian for the design temperature in each room;
a JiFor the design temperature in each room with A JiCentered by the leeway value.
3. a kind of air-conditioning as claimed in claim 2 becomes temperature control method of water, it is characterized in that: the air-conditioner host water temperature requirements of the whole central air conditioner system that calculates is less than the given lower limit of air-conditioner host manufacturer, and then the air-conditioner host water temperature requirements value of whole central air conditioner system is the given lower limit of air-conditioner host manufacturer; The air-conditioner host water temperature requirements of the whole central air conditioner system that calculates is greater than the given upper limit of air-conditioner host manufacturer, and then the air-conditioner host water temperature requirements value of whole central air conditioner system is the given upper limit of air-conditioner host manufacturer.
4. become temperature control method of water as claim 1,2 or 3 described a kind of air-conditionings, it is characterized in that: described a JiValue be with A JiCentered by the scope of design value or with A JiCentered by design leeway value 0.4~0.7.
5. a kind of air-conditioning as claimed in claim 4 becomes temperature control method of water, it is characterized in that: described air-conditioner host water temperature is air-conditioner host water supply water temperature, the air-conditioner host water temperature that each room needs is the air-conditioner host water supply water temperature that each room needs, the air-conditioner host water temperature that each zone needs is the air-conditioner host water supply water temperature that each zone needs, the air-conditioner host water temperature requirements of whole central air conditioner system is the air-conditioner host water supply water temperature requirements of whole central air conditioner system, and current air-conditioner host water temperature T 1 is current air-conditioner host water supply water temperature T 1.
6. a kind of air-conditioning as claimed in claim 4 becomes temperature control method of water, it is characterized in that: described air-conditioner host water temperature is air-conditioner host backwater water temperature, the air-conditioner host water temperature that each room needs is the air-conditioner host backwater water temperature that each room needs, the air-conditioner host water temperature that each zone needs is the air-conditioner host backwater water temperature that each zone needs, the air-conditioner host water temperature requirements of whole central air conditioner system is the air-conditioner host backwater water temperature requirements of whole central air conditioner system, and current air-conditioner host water temperature T 1 is current air-conditioner host backwater water temperature T 1.
7. a realization becomes water temperature control system as the air-conditioning of method as described in the claim 1,2,3 or 4, described air-conditioning becomes water temperature control system and comprises the central air conditioner main machine controller, it is characterized in that: described air-conditioning becomes water temperature control system and also comprises room air temperature sensor, water temperature regulater, signalling channel , signalling channel , signalling channel And control centre; Room air temperature sensor is installed in the air-conditioning return air inlet place in each room; Air conditioning area is set to a plurality of zones, and each zone comprises one or more rooms, and a water temperature regulater is installed in each zone; Room air temperature sensor is gathered the data of the indoor temperature in each room, passes through signalling channel The input water temperature regulater, water temperature regulater calculates the air-conditioner host water temperature that each room needs, and calculates the air-conditioner host water temperature that each zone needs then, passes through signalling channel Input control centre, the air-conditioner host water temperature requirements of whole central air conditioner system calculates in control centre, passes through signalling channel Input central air conditioner main machine controller is to change the air-conditioner host water temperature;
Described control centre is host computer or is made up of host computer and system server.
8. a kind of air-conditioning as claimed in claim 7 becomes water temperature control system, it is characterized in that: described air-conditioning becomes water temperature control system and also comprises gateway, and gateway is arranged between control centre and the central air conditioner main machine controller, and described gateway is with signalling channel Be divided into signalling channel A and signalling channel B two parts, control centre passes through signalling channel successively A, gateway and signalling channel B is connected with the central air conditioner main machine controller.
9. become water temperature control system as claim 7 or 8 described a kind of air-conditionings, it is characterized in that: described water temperature regulater comprises multi channel signals input/output module, CPU and memory cell, and the data of the indoor temperature in each room that room air temperature sensor collects are passed through signalling channel Input multi channel signals input/output module, by multi channel signals input/output module input CPU, CPU calculates the air-conditioner host water temperature that each room needs again, calculates the air-conditioner host water temperature that each zone needs then.
10. become water temperature control system as claim 7 or 8 described a kind of air-conditionings, it is characterized in that: described water temperature regulater, control centre, gateway and central air conditioner main machine controller are connected by bus connecting mode and communicate by letter.
CN2013102089617A 2013-05-30 2013-05-30 Method and system for controlling air-conditioning variable water temperatures CN103245037A (en)

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CN104456843A (en) * 2014-11-19 2015-03-25 北京百度网讯科技有限公司 Energy saving control method and device of air conditioner at tail end of data center machine room
CN104456843B (en) * 2014-11-19 2017-04-05 北京百度网讯科技有限公司 The energy-saving control method and device of data center machine room air conditioning terminal
CN106440580A (en) * 2015-08-13 2017-02-22 南京佰福沃电子技术有限公司 Control system and method for achieving on-demand refrigerating on equipment in server room

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