CN107238168A - The electric composite air conditioner system of the ecological fresh air of modern times energy-conservation building - Google Patents
The electric composite air conditioner system of the ecological fresh air of modern times energy-conservation building Download PDFInfo
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- CN107238168A CN107238168A CN201610181382.1A CN201610181382A CN107238168A CN 107238168 A CN107238168 A CN 107238168A CN 201610181382 A CN201610181382 A CN 201610181382A CN 107238168 A CN107238168 A CN 107238168A
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Abstract
The present invention proposes a kind of electric composite air conditioner system of modern ecological fresh air of energy-conservation building, including controller, the controller is connected with air delivery system, refrigeration system and heating system, the air delivery system includes air-conditioner set, one end of the air delivery system connects the heating system, the other end of the air delivery system connects the refrigeration system, and the refrigeration system includes chilled water circuit and chilled(cooling) water return (CWR).The present invention is required according to the difference of indoor environmental quality, respectively various interference are eliminated using heating, ventilation and air-conditioning technique, and then set up in interior of building and maintain one kind that there is specific use function, and comfortable " artificial environment " that can regulate and control as desired.
Description
Technical field
The invention belongs to field of energy-saving technology, more particularly to a kind of modern electric combined air conditioner system of the ecological fresh air of energy-conservation building
System.
Background technology
At present, with the continuous quickening of urban construction modernization, the increasingly raising of people's living standard and supply and demand
The energy shortage problem of contradiction Japanese TV play aggravation, reduction high-rise building building integrates Energy in use, improves building interior energy system
The comprehensive service efficiency of system, strengthens building Residential comfortableness, and carry out high-rise building Building Energy-saving Work turns into countries in the world
The important measure of energy shortage is alleviated in government.China rises for some more external developed countries of the research in terms of building energy conservation
Step is relatively later, is substantially started in the 1980s, the first edition residential architecture issued with Ministry of Construction's approval in 1989
Energy saving igniter is representative, and is further improved based on this in engineering practice.
With the development of urbanization, many big cities are generally skyscraper, are built from hotel to trade financing, from text
Change physical culture to build to health care, the spring after apartment, the skyscraper such as rain of various functions classification is lived from office office building to business
Rised sheer from level ground as bamboo shoot, it is in a compact mass.It is new build, new use function proposes new, higher requirement to Architectural Equipment, warm up
Logical air-conditioning turns into the essential critical facility of modern architecture, HVAC industry entry gold period.Suit measures to local conditions
Reasonable selection energy resources, it is sufficiently effective with can, improve the efficiency of skyscraper energy consumption system, rationally design is created comfortable
Indoor environment and reduce the negative effect to outdoor environment as far as possible simultaneously, be that must solve in skyscraper design of HVAC
Certainly the problem of.
The content of the invention
The present invention proposes a kind of electric composite air conditioner system of modern ecological fresh air of energy-conservation building, solves prior art on the middle and senior level
Energy for building is not reasonable, the problem of energy consumption efficiency is low and has a negative impact to outdoor border.
The technical proposal of the invention is realized in this way：
A kind of electric composite air conditioner system of modern ecological fresh air of energy-conservation building, including controller, the controller connection are free
Gas Transmission system, refrigeration system and heating system, the air delivery system include air-conditioner set, the air delivery system
One end connect the heating system, the other end of the air delivery system connects the refrigeration system, the refrigeration system
Including chilled water circuit and chilled(cooling) water return (CWR).
Further, the chilled water circuit includes chilled water pump, and the chilled water pump is by freezing water supply and return
Pipeline connects the chilled water heat exchanger of the air-conditioner set, and the chilled water pump is connected with evaporator, the evaporator connection
There is condenser, the condenser is connected with compressor, and the condenser is connected with cooling water pump and cooling tower.
Further, the air-conditioner set includes fan coil, hot water heat exchanger and filter, and the filter leads to
Cross air returning valve and be connected with new air-valve, the air returning valve is also associated with return air fan and exhaust valve, and the return air fan is connected with
Return air grid, the air-conditioner set is also associated with termination rack, and the termination rack is connected with air feed grid.
Further, the air delivery system also includes air-out fan, and described air-out fan one end is connected with air outlet,
The other end connects air exhausting grille.
Further, the heating system includes hot-water radiator, and the hot-water radiator is connected with pot by heat-exchanger pump
Stove, the hot-water radiator and the boiler are connected to the hot water heat exchanger by hot water supply and the line of return.
Further, the controller be based on relay feedback auto-tuning PID controller, it is described based on relay feedback from whole
The input for determining PID controller nonlinear element is sinusoidal variations, is output as non sinusoidal periodic change and its cycle and input signal
Cycle phase is same, and definition of its first harmonic component exported to input is met：
Wherein, N is referred to as described function, and Y1 is the first harmonic component amplitude of output, and a is the sinusoidal amplitude inputted, and φ 1 is
The phase shift of the first harmonic component of output；If not including energy-storage travelling wave tube in nonlinear element, then N simply enters amplitude a's
Function, is defined as N (a)；If including energy-storage travelling wave tube in nonlinear element, N is input amplitude a and the function of frequency.
Further, the relay characteristics nonlinear element input and output based on relay feedback auto-tuning PID controller
Curve is met：
I.e.：
Wherein N (a) is nonlinear element described function, and d is relay amplitude, and Y1 is the first harmonic component amplitude of output, a
For the amplitude of sine input.
Further, the input and output of the saturation nonlinearity link based on relay feedback auto-tuning PID controller are special
Linearity curve is met：
Wherein, k is the oblique of input-output characteristic curve
Rate, N (a) is nonlinear element described function, and a is the amplitude of sinusoidal input, and s is the area difference of two buses formation.
Further, the relay nonlinear link for having stagnant ring based on relay feedback auto-tuning PID controller
Input-output characteristic curve is met：
Wherein, wherein N (a) is nonlinear element described function, and d is relay amplitude, h
For the height on the round heart in bus bottom, a is the sinusoidal amplitude inputted.
The beneficial effects of the invention are as follows：
The present invention is required according to the difference of indoor environmental quality, is disappeared respectively using heating, ventilation and air-conditioning technique
Except various interference, and then set up in interior of building and remain a kind of with specific use function, and can adjusted as desired
Comfortable " artificial environment " of control.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of one embodiment of the invention；
Fig. 2 is circulation loop schematic diagram of the invention；
Fig. 3 is nonlinear control system schematic diagram；
Fig. 4 is relay feedback Self tuning control schematic diagram；
Fig. 5 is the nonlinear input-output characteristic curve of relay-type；
Fig. 6 is the input-output characteristic curve of saturation nonlinearity.
In figure, 1- air-conditioner sets；2- chilled water pumps；3- freezes water supply and return pipeline；4- evaporators；5- condensers；
6- compressors；7- cooling water pumps；8- cooling towers；9- fan coils；10- hot water heat exchangers；11- filters；12- air returning valves；
13- new air-valves；14- return air fans；15- exhaust valves；16- return air grids；17- termination racks；18- air feed grids；19- air-out wind
Fan；20- air outlets；21- air exhausting grilles；22- hot-water radiators；23- heat-exchanger pumps；24- boilers；25- hot water is supplied and the line of return；
26- chilled water heat exchangers.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
As shown in figures 1 to 6, the electric composite air conditioner system of the ecological fresh air of the modern energy-conservation building of the present invention, including controller is (in figure
It is not shown), the controller is connected with air delivery system, refrigeration system and heating system, the air delivery system bag
Air-conditioner set 1 is included, one end of the air delivery system connects the heating system, and the other end of the air delivery system connects
The refrigeration system is connect, the refrigeration system includes chilled water circuit and chilled(cooling) water return (CWR).The chilled water circuit includes freezing
Water pump 2, the chilled water pump 2 connects the chilled water heat exchanger of the air-conditioner set 1 by freezing water supply and return pipeline 3
26, the chilled water pump 2 is connected with evaporator 4, and the evaporator 4 is connected with condenser 5, and the condenser 5 is connected with compression
Machine 6, the condenser 5 is connected with cooling water pump 7 and cooling tower 8.The air-conditioner set 1 includes fan coil 9, hot water heat exchange
Device 10 and filter 11, the filter 11 are connected with new air-valve 13 by air returning valve 12, and the air returning valve 12 is also associated with
Return air fan 14 and exhaust valve 15, the return air fan 14 are connected with return air grid 16, and the air-conditioner set 1 is also associated with end
Case 17 is held, the termination rack 17 is connected with air feed grid 18.The air delivery system also includes air-out fan 19, the air-out
The one end of fan 19 is connected with air outlet 20, other end connection air exhausting grille 21.The heating system includes hot-water radiator 22, institute
State hot-water radiator 22 and boiler 24 is connected with by heat-exchanger pump 23, the hot-water radiator 22 and the boiler 24 are supplied by hot water
The hot water heat exchanger 10 should be connected to the line of return 25.
Specifically, fan coil 9：Fan coil 9 is responsible for the air adjustment in one or more spaces, and its size meets all
The maximum amount of requirement that space needs, adds all external loads, and for example the radiating of fan, the heat loss of pipeline, pipeline are empty
Gas is revealed and outdoor fresh air.Under design condition, fan coil 9 provide design air mass flow and air it is warm and humid
Degree, complies with the temperature and humidity requirement of regional.For the application for needing to dehumidify, fan coil 9 is except that should have
Outside rational cooling capacity, should also there are enough latent heat cooling capacities.The size selection of fan coil 9 will consider air loop
Water inlet and water outlet design temperature, flow velocity and pressure drop with water loop.In order to improve the heat transfer performance of coil pipe while reducing sky
The pressure drop of air circuit, should select relatively low surface wind speed and relatively low approach temperature.
Evaporator 4：The main function of evaporator 4 is that the chilled water circulated through equipment is cooled down.Refrigerant is with low temperature
The state of low pressure leaves expansion valve, and enters evaporator 4 with the state of low temperature liquid vapour mixture.Evaporator 4 has a shell
And shelltube heat exchanger, liquid refrigerant absorbs from the secondary water or chilled water that are circulated through equipment herein heat energy and to be switched to
Steam condition.
Condenser 5：Condenser 5 is a kind of heat exchanger similar with evaporator 4, and it is by the high-pressure refrigeration from compressor 6
Agent condenses into liquid from gaseous state.Refrigerant evaporation liberated heat raises the water temperature of condenser 5, will with the water of post-condenser 5
Heat energy is carried to cooling tower 8, and heat energy is released in air there.In water cooled system, heat passes through outdoor cooling tower 8
Or city river network or phreatic water are discharged, heat energy can also be discharged by outdoor air cooled condenser.Air cooled condenser can be with
It is independent or integrated, usual refrigerant flows out condenser 5 in liquid form.
Cooling tower 8：The load of refrigeration unit is equal to caloric value of the load plus compressor 6 of evaporator 4.Cooling tower 8
Based on heat loss of the size by the refrigeration duty of refrigeration unit and from pipeline, pump and other equipment.Once determine that cooling is held
Amount, the size of cooling tower 8 is can determine that using ASHRAE design temperature condition.Preferably choose multiple-unit and with the cold of fan speed-changer
But tower 8, a larger cooling tower 8 provides relatively low cooling water temperature, so as to improve the efficiency of condenser 5.
Compressor 6：Compressor 6 is the main driving of steam compression type refrigeration circulation.The effect of compressor 6 is by refrigerant
High steam is compressed into from low-pressure steam, compressor 6 prime mover and compressor 6 by being mainly made up of, and it is by the way that kinetic energy is changed
The pressure and temperature of refrigerant is raised into pressure.
In the system design process, the practical tuning method of conventional PID parameters is difficult to directly make in self-regulating controller
With, therefore controller is used based on relay feedback auto-tuning PID controller in the present invention, and because relay feedback experiment is to tool
There are the very process of large time constant and the process of nonlinearity also to realize good work, and the present invention saves building in the modern times
The electric composite air conditioner system of ecological fresh air has the characteristics such as very strong non-linear, big inertia, strong jamming, using based on relay feedback from
Between the described function N (a) and control target Gp (s) of Tuning PID Controller, wherein nonlinear element, as described function N
(a) when the input for assuming that nonlinear element is sinusoidal variations, output is non sinusoidal periodic change and its cycle and input signal
Cycle phase is same.So, nonlinear element described function is defined to the compound ratio of input by the first harmonic component that exports, i.e.,：
Wherein, N is referred to as described function, and Y1 is the first harmonic component amplitude of output, and a is the sinusoidal amplitude inputted, and φ 1 is
The phase shift of the first harmonic component of output；If not including energy-storage travelling wave tube in nonlinear element, then N simply enters amplitude a's
Function, is defined as N (a)；If including energy-storage travelling wave tube in nonlinear element, N is input amplitude a and the function of frequency；Or base
Met in the relay characteristics nonlinear element input-output curve of relay feedback auto-tuning PID controller：
I.e.：
Wherein N (a) is nonlinear element described function, and d is relay amplitude, and Y1 is the first harmonic component amplitude of output, a
For the amplitude of sine input.
Or, the input-output characteristic of the saturation nonlinearity link based on relay feedback auto-tuning PID controller is bent
Line is met：
Wherein, k is the slope of input-output characteristic curve, N
(a) it is nonlinear element described function, a is the amplitude of sinusoidal input, and s is the area difference of two buses formation.
Or, the nonlinear element of the relay characteristics for having stagnant ring based on relay feedback auto-tuning PID controller
Input-output characteristic curve is met：
Wherein, wherein N (a) is nonlinear element described function, and d is relay amplitude, h
Height on the round heart in bus bottom, a is the sinusoidal amplitude inputted.
Carried out in the closed in tuning process based on relay feedback auto-tuning PID controller in the present invention, can
Control system is run still near operating point, and the normal operation of system had not both been interfered with so, system non-thread can be overcome again
Property influence to parameter tuning, under Relay feedback test, controlled device Gp (j ω) is as long as high frequency has at least-π phase steric retardation
Threshold oscillation can be just produced afterwards, i.e. Relay feedback test closed-loop system output will produce self-sustained oscillation, draw non-linear
The lower system of theory produces the condition of self-sustained oscillation, and it meets
Wherein Tc is the undamped period of oscillation, and a is self-sustained oscillation amplitude, ωcFor the frequency of self-sustained oscillation critical point；Constant amplitude is shaken
The condition swung is 1+N (a) Gp (j ω)=0, i.e. -1/N (a)=Gp (j ω), and Gp (j ω) is control target, and d is relay width
Value；Satisfaction -1/N (a)=- π a/4d, as bears real axis, and threshold oscillation point is both the Nyquist figures of controlled device with bearing real axis
Intersection point, is the negative intersection point reciprocal of described function with relay characteristics, the frequencies omega of the self-sustained oscillation critical point againcAmplitude be
Kc=π a/4d.
For a long time, control theory worker be directed to it is various under the conditions of control strategy and its property Quality Research, propose
Various control algolithms, control theory are constantly pushed to new height.Meanwhile, people are also it is well recognized that control system
The performance of system can change over time, and bad performance reduces efficiency, waste energy, therefore the property of assessment system
Can maintenance system be simultaneously necessary.
The electric composite air conditioner system of the modern ecological fresh air of energy-conservation building of the invention, it is complicated, not only including a series of drivings
The part of liquid flowing is such as：Water pump, blower fan and compressor etc., also various types of heat exchangers：Fan coil, evaporation
Device, condenser and middle heat exchanger, these devices by valve member and various pipelines such as：Airduct, water pipe and refrigerant pipe etc. are even
Connect, system is in long-term running, as working condition constantly changes, and the operation characteristic of various devices is also constantly sent out
Changing, therefore air-conditioning system is also constantly to change；Simultaneously because existing system controller is all fixed, solid
Under fixed state modulator, the operation not only inefficiency, and waste the substantial amounts of energy of system is closed in consideration of it, needing to set up
The performance of the performance indications assessment system of reason, and thus the parameter of adjustment controller improves efficiency, reduction energy consumption to reach in real time
Purpose.
Heating system is low temperature heating system, the regulation of low temperature heating system operation and conventional high-temperature heating system runing adjustment
Unanimously, supply water temperature mainly adjusts (matter regulation) and hot water flow regulation (amount regulation) two ways.Due to low temperature heating system
System can will can further improve the energy profit of thermal source using low-temperature heat sources such as heat pumps by adjusting supply water temperature reduction heat source temperature
With rate.In addition, for low temperature heating system, correlative study shows that using supply water temperature regulation room thermic load can be better adapted to
Change.Therefore consider from energy-conservation and comfortable angle, supply water temperature regulative mode is the optimum operation regulation of low temperature heating system
Mode.
For the ease of the engineer applied of hybrid system, low temperature heating is supplied with mixed ventilation hybrid system and low-temperature radiant floor
Exemplified by warm and mixed ventilation hybrid system, low temperature heating system water supply temperature regulating relationship formula is derived.
(1) derivation of low temperature forced convection current heating system lower water temperature relational expression
By taking the low temperature forced convection current heating of index bed south orientation and mixed ventilation room as an example, in order to simplify heating system water supply temperature
Degree regulation relational expression, it is assumed that indoor air temperature is equal to indoor calculating temperature, by arranging low temperature forced convection current heating with mixing
The heating load calculation formula of ventilated room calculation of Heat Load formula, low temperature forced convection current heating system, can according to conservation of energy principle
To obtain following formula.
The equivalent coefficient (W/ DEG C) of m in formula, n --- peripheral structure thermic load and fresh air thermic load；
CP, w--- hot water specific heat at constant pressure (kJ/ (kg DEG C)；
Gw--- heating system hot water flow (kg/s)；
tW, in--- heating system supply water temperature (DEG C)；
tW, out--- heating system return water temperature (DEG C)；
Alphabetical upper belt point represents design point in above formula, and running status is expressed as without point, is shown below after simplifying：
By above formula, low temperature forced convection current heating system supply water temperature and return water temperature regulation relational expression can be arrived, as shown.
Equally, by the heating of index bed south orientation low-temperature radiant floor with exemplified by mixed ventilation room, also assuming that Interior Space temperature
Degree is equal to indoor calculating temperature.
A heat part obtained by low-temperature radiant floor Heating Room comes the upward heat dissipation capacity of room radiation floor, one since then
Part is from the downward heat dissipation capacity of upper strata room radiation floor, and two parts sum is the heat dissipation capacity of whole radiation floor.According to it
Before obtained low-temperature radiant floor heat exchange unit heat dissipation capacity computational methods, by integration can obtain whole low-temperature radiant floor with
Heat exchange amount between interior.The heating load calculating formula of low-temperature radiant floor heating system and low temperature forced convection current heating system one
Sample.According to conservation of energy principle, the supply water temperature regulation relational expression of low-temperature radiant floor heating system can be obtained, such as following formula institute
Show.
Af in formula --- the effective area of dissipation in radiation floor surface (m2)；
Δ t --- the mean temperature difference (DEG C) between radiation floor and interior.
Room control is mainly using room temperature control parameter as control targe by adjusting low temperature heating end-equipment
Heat dissipation capacity realize, therefore room control strategy mainly include low temperature end heat gain from appliance and equipment regulative mode and room temperature control
The determination of parameter processed.
(1) regulative mode of low temperature end heat gain from appliance and equipment
By taking low temperature forced convector radiator and low-temperature radiant floor as an example, the regulation side of low temperature heating end-equipment heat dissipation capacity
Formula is as follows.
The regulative mode of low temperature forced convector radiator heat dissipation capacity and traditional fan coil are basically identical, mainly there is air quantity
Regulation, hot water flow regulation and supply water temperature adjust three kinds of modes.Wherein air quantity regulation is by changing the blower fan in radiator
Air quantity changes radiator heat-dissipation amount, mainly have three speed manually regulation, it is stepless automatically adjust with the mode such as air-valve regulation, it is corresponding
Heat dissipation capacity adjustable range be respectively 30~100%, 30~100% and 43~100%.Hot water flow regulation is dissipated by changing
Hot device hot water flow changes radiator heat-dissipation amount, mainly there is two kinds of continuous flow regulation and interval Flow-rate adjustment.The former often adopts
Radiator hot water flow is adjusted with electric control valve, the latter is corresponding frequently with electronic break-make valve regulation radiator hot water flow
Heat dissipation capacity adjustable range be respectively 75~100% and 0~100%.Supply water temperature regulation is by changing radiator water supply temperature
Spend to change radiator heat-dissipation amount, the water supply of water inlet of radiator and the mixed water of backwater are typically adjusted by three-way electric regulating valve
Ratio method realizes that the heat dissipation capacity adjustable range of radiator is 0~100%.
The regulative mode of low-temperature radiant floor heat dissipation capacity and traditional radiator are basically identical, mainly there is hot water flow regulation
Two kinds are adjusted with supply water temperature.Hot water flow regulation is low to change by adjusting the hot water flow of valve regulation low-temperature radiant floor
Warm radiation floor heat dissipation capacity, mainly there is two kinds of continuous flow regulation and interval Flow-rate adjustment.And supply water temperature regulation is by adjusting
The supply water temperature of valve regulation low-temperature radiant floor is saved to change low-temperature radiant floor heat dissipation capacity.
(2) room temperature control parameter
In hybrid system actual motion, room indoor temperature will be by solar radiation, outdoor temperature, personnel and office
The influence of equipment thermal source, is fluctuated above and below setting value, its degree of fluctuation and heating system mode, setting value at room temperature and outdoor disturbance
Size it is relevant.Although the control method to indoor temperature has carried out numerous studies, such as on/off controls, PID control both at home and abroad
And PREDICTIVE CONTROL etc., but seldom the size of indoor temperature setting value is studied according to room thermic load characteristic.In room heat
The part throttle characteristics building room different with heating system operation characteristic, indoor temperature setting value will very on indoor thermal environment influence
Greatly.For the room or heating system that thermal inertia is larger, setting value at room temperature should set more relatively low, and heat is partially removed so as to reach
Inert influence；And for the less room of thermal inertia or heating system, setting value at room temperature can just set higher.
In addition, indoor temperature control parameter is generally indoor air temperature and operation temperature.Athienitis is had found with room
After interior air themperature is as control parameter, fluctuations in indoor temperature is than larger, and indoor thermal comfort is poor.And if with in-house operation temperature
Degree is as control parameter, and fluctuations in indoor temperature will be smaller, and the reaction time also reduces half.It is continuous with Building technology
Development, room thermic load constantly reduces, and causes indoor air temperature and the difference of in-house operation temperature less and less, with indoor behaviour
Making above-mentioned advantage that temperature has as indoor temperature control parameter may be just unobvious.
Low-temperature hot-water heating system (Low Temperature Heating Systems, LTHS), abbreviation low temperature heating system
System, refers to the heating system for using the low-temperature water heating less than 60 DEG C as medium.According to heating system end-equipment radiating principle
And mode is different, low temperature heating system can be divided into low temperature convection current heating system and low temperature radiation heating system.The former mainly has low
Warm forced convertion heating system and low temperature free convection heating system etc., the latter mainly has low-temperature radiant floor heating system and low
Warm radiation ceiling heating system etc..
Dedicated outdoor air system (Dedicated Outdoor Air Supply Systems, DOAS), abbreviation VMC,
Refer to the independent wholly fresh air of no return air.In order to reduce system energy consumption, VMC generally carries heat reclamation device.According to
The difference of Room air distribution design mode, VMC can be generally divided into hybrid ventilation and displacement ventilation system etc..
Low temperature heating is calculated for convenience and for fresh air room thermic load, whether the present invention uniformly divides according to indoor thermal environment
Low temperature heating and fresh air hybrid system are divided into low temperature heating and mixed ventilation hybrid system and low temperature by cloth as the criteria for classifying
Two kinds of heating and replacement aeration hybrid system.For the former, indoor thermal environment is equally distributed；And for the latter, Indoor Thermal
Environment is non-equally distributed.
According to heating system end-equipment radiating principle and the difference of mode, low temperature heating and mixed ventilation hybrid system bag
Include low temperature convection current heating and mixed ventilation hybrid system and low temperature radiation heating and mixed ventilation hybrid system.The former mainly has low
Warm free convection heating and mixed ventilation hybrid system (NC+MV) and low temperature forced convection current heating and mixed ventilation hybrid system
(FC+MV) etc., the latter mainly has low-temperature radiant floor heating to be supplied with mixed ventilation hybrid system (FH+MV) and low-temp radiating furred ceiling
Warm and mixed ventilation hybrid system (CH+MV) etc..
For low temperature convection current heating and mixed ventilation hybrid system, its indoor air flows heat transfer process is as follows：It is outdoor new
Fresh air is acted on by VMC pressure fan enters room by air outlet, and foul indoor air passes through VMC exhaust blower
Effect is discharged to outdoor by exhaust outlet；Meanwhile, it is cold at floor surface by low temperature convector radiator heat buoyancy or blower fan swabbing action
Air enters radiator and is entered room by radiator outlet after the finned tube heating of heat.Sent into due to hybrid ventilation
Air themperature is lower than indoor air temperature, and fresh cold air enters behind room from top air inlet, acts on and producing with heat buoyancy
Raw indoor airflow upper end and the hot-air of radiator outlet are sufficiently mixed, so that indoor air temperature distribution is than more uniform.
High-rise building intellectualizing system is the important guarantee basis of building construction intelligent Service level, and it has been merged for matching somebody with somebody
The excellent production that the advanced technologies such as power technology, computer technology, motor technology, automatic control technology, communication network technology are integrated
Thing.By improve high-rise building house safety take precautions against, estate management and information intelligent service in terms of comprehensive automation water
It is flat, residential customer is obtained a safety, comfortable, conveniently daily life, work, the good environment learnt.High-rise building is built
It is an important building construction mark in China's urban infrastructure construction information systems to build, and carries out intelligent, energy-saving and sets
Meter is to improve the important guarantee basis that high-rise building building comprehensive intelligent service technology performance and high efficient energy sources are utilized, and is to promote high
Layer building construction building electrical energy saving sustainable construction during planning and designing, construction, later stage operation maintenance etc. develops
Important technical.
Due to China's building electrical energy saving situation very severe, government also attaches great importance to building electrical energy saving work, and
A series of perfect laws and regulations, energy conservation standard specification, design guidance file etc. are issued and implemented, to promote China to build
The stable progress of electric energy-saving efficient work.At present, domestic many experts and scholars have carried out a large amount of scientific researches and achieved
Some gratifying achievements, but all in all, China's building electrical energy saving is not also very perfect, Building Electric Energy Saving Technology
It need further research promotion in terms of theoretical research, practical application to use.Carry out high-rise building building electrical energy saving skill
The application study of art, is both that building trade implements the important measure of the national energy strategy of sustainable development, while being also building row
The inevitable choice of the energy-saving engineering construction sustainable development of industry, with the very big actual meaning of Energy Conservation Project in Construction design application
Justice.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. the electric composite air conditioner system of a kind of modern ecological fresh air of energy-conservation building, it is characterised in that including controller, the controller
Air delivery system, refrigeration system and heating system are connected with, the air delivery system includes air-conditioner set, the air
One end of Transmission system connects the heating system, and the other end of the air delivery system connects the refrigeration system, described
Refrigeration system includes chilled water circuit and chilled(cooling) water return (CWR).
2. the electric composite air conditioner system of the modern ecological fresh air of energy-conservation building according to claim 1, it is characterised in that described cold
Freezing water loop includes chilled water pump, and the chilled water pump connects the cold of the air-conditioner set by freezing water supply and return pipeline
Freeze water heat exchanger, the chilled water pump is connected with evaporator, and the evaporator is connected with condenser, and the condenser is connected with
Compressor, the condenser is connected with cooling water pump and cooling tower.
3. the electric composite air conditioner system of the modern ecological fresh air of energy-conservation building according to claim 2, it is characterised in that the sky
Unit is adjusted to include fan coil, hot water heat exchanger and filter, the filter is connected with new air-valve by air returning valve, institute
State air returning valve and be also associated with return air fan and exhaust valve, the return air fan is connected with return air grid, and the air-conditioner set is also
Termination rack is connected with, the termination rack is connected with air feed grid.
4. the electric composite air conditioner system of the modern ecological fresh air of energy-conservation building according to claim 3, it is characterised in that the sky
Gas Transmission system also includes air-out fan, and described air-out fan one end is connected with air outlet, other end connection air exhausting grille.
5. the electric composite air conditioner system of the modern ecological fresh air of energy-conservation building according to claim 4, it is characterised in that the system
Heating system includes hot-water radiator, and the hot-water radiator is connected with boiler by heat-exchanger pump, the hot-water radiator and described
Boiler is connected to the hot water heat exchanger by hot water supply and the line of return.
6. the electric composite air conditioner system of the modern ecological fresh air of energy-conservation building according to claim 1, it is characterised in that the control
Device processed be based on relay feedback auto-tuning PID controller, it is described based on relay feedback auto-tuning PID controller nonlinear element
Input as sinusoidal variations, be output as non sinusoidal periodic change and its cycle is identical with input signal cycle, its output it is once humorous
Definition of the wave component to input is met：
<mrow>
<mi>N</mi>
<mo>=</mo>
<mfrac>
<msub>
<mi>Y</mi>
<mn>1</mn>
</msub>
<mi>&alpha;</mi>
</mfrac>
<mo>&angle;</mo>
<msub>
<mi>&phi;</mi>
<mn>1</mn>
</msub>
<mo>,</mo>
</mrow>
Wherein, N is referred to as described function, and Y1 is the first harmonic component amplitude of output, and a is the amplitude of sinusoidal input, and φ 1 is output
First harmonic component phase shift；If not including energy-storage travelling wave tube in nonlinear element, then N simply enters amplitude a function,
It is defined as N (a)；If including energy-storage travelling wave tube in nonlinear element, N is input amplitude a and the function of frequency.
7. the electric composite air conditioner system of the modern ecological fresh air of energy-conservation building according to claim 6, it is characterised in that the base
Met in the relay characteristics nonlinear element input-output curve of relay feedback auto-tuning PID controller：
I.e.：
Wherein N (a) is nonlinear element described function, and d is relay amplitude, and Y1 is the first harmonic component amplitude of output, and a is just
The amplitude of string input.
8. the electric composite air conditioner system of the modern ecological fresh air of energy-conservation building according to claim 6, it is characterised in that the base
Met in the input-output characteristic curve of the saturation nonlinearity link of relay feedback auto-tuning PID controller：
Wherein, k is the slope of input-output characteristic curve, N (a)
For nonlinear element described function, a is the amplitude of sinusoidal input, and s is the area difference of two buses formation.
9. the electric composite air conditioner system of the modern ecological fresh air of energy-conservation building according to claim 6, it is characterised in that the base
Met in the input-output characteristic curve of the relay nonlinear link for having stagnant ring of relay feedback auto-tuning PID controller：
Wherein, wherein N (a) is nonlinear element described function, and d is relay amplitude, h buses bottom
Height on the round heart, a is the sinusoidal amplitude inputted.
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