CN102778009B - Temperature-humidity control device and method for variable-air-volume air-conditioning system - Google Patents
Temperature-humidity control device and method for variable-air-volume air-conditioning system Download PDFInfo
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- CN102778009B CN102778009B CN201210239255.4A CN201210239255A CN102778009B CN 102778009 B CN102778009 B CN 102778009B CN 201210239255 A CN201210239255 A CN 201210239255A CN 102778009 B CN102778009 B CN 102778009B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a temperature-humidity control device for a variable-air-volume air-conditioning system, and a temperature-humidity control method. The temperature-humidity control device comprises a combined air conditioner set, a variable-air-volume system controller and an indoor sensor. The control method comprises the following steps of: electrically connecting an indoor sensor and a built-in sensor to detect indoor humidity, indoor temperature, concentration of indoor CO2 (Carbon Dioxide), outlet air temperature at a humidifying section, outlet air temperature of a heat coil, and outlet air temperature of a cold coil; generating a control signal through the system controller based on detected information along with a series of operations; carrying out frequency-conversion regulation to a fan according to a control signal, and regulating opening of various built-in adjusting valves so as to ensure the constant indoor temperature and humidity as well as the air quality. The temperature-humidity control device and method have the benefits that: a decoupling control of the temperature and the humidity can be achieved, energy is saved, the capacity of resisting disturbance and the reaction speed and the control precision of the system are improved, and the constant indoor temperature and humidity can be kept as well as the air quality. The temperature-humidity control device and method can be widely applied to fields of precision machinery, instruments and meters, medicines and foods, textiles and tobaccos and the like.
Description
Technical field
The present invention relates to air-conditioning control field, particularly relate to a kind of air conditioning system with variable temperature and humidity control device and method.
Background technology
Air handling system can be divided into comfort air conditioning system and technological air conditioning two classes according to its service object's difference.Technological air conditioning to be to meet production technology or stored article, or keeps best indoor conditions as object taking machine, the equipment of indoor operation, is applied to as precision optical machinery processing industry, equipment manufacturing, medicine food, textile industry, tobacco industry etc.Therefore technological air conditioning requires the control accuracy of its temperature, humidity higher.Comfort air conditioning is taking indoor occupant as service object, and the air-conditioning taking creating comfortable environment as object, as applied air-conditionings such as house, office, hotel, market, library, gymnasium.For most comfort air conditioning systems, do not need the control of very strict temperature and humidity, general employing in summer is shown cold mode and is reached temperature controlled object, under this control mode, humidity generally can maintain in scope of design, adopt the method control indoor temperature of heating winter, also needs to adopt humidification measure in northern Arid Area.
Temperature and humidity is to describe two major parameters of air condition, and they are not two variablees completely independently, but intercouple.In the time that relative humidity changes, to carry out humidification or dehumidification action, can cause indoor temperature fluctuation simultaneously; And in the time that room temperature changes, the saturation pressure of steam in room air is changed, in the situation that absolute moisture content is constant, just directly change relative humidity (increase in temperature relative humidity reduces, and temperature reduces relative humidity and increases).
Existing technological air conditioning system adopts the mode of first showing to heat again after cold cool-down dehumidification to carry out air-treatment general summer; After adopting winter coil pipe to heat, the mode of humidification is carried out air-treatment again, and this mode can effectively be carried out the solution lotus root control of humiture.Because energy-conservation needs generally all adopt variable air rate control, under the condition constantly changing at air quantity, also will maintain indoor good Temperature and Humidity Control, thereby control will be more complicated.The control program of at present a lot of technological air conditioning systems and control logic design are not fine, cause Actual Control Effect of Strong unsatisfactory.
Summary of the invention
The object of the invention is the deficiency in order to overcome above-mentioned background technology, a kind of air conditioning system with variable temperature and humidity control device and method are provided, make it have effective, the safe and efficient energy-conservation feature of controlling.
A kind of air conditioning system with variable temperature and humidity control device provided by the invention, comprises assembled air-conditioner unit, variable air volume system controller and interior sensor; Described assembled air-conditioner unit top is disposed with ajutage, fresh wind tube and exhaust duct, is disposed with pressure fan, humidifier section, hot coil, cooling coil, circulated air valve and the 4th controller and return fan thereof in described assembled air-conditioner unit; Described blower setting is consistent with air supply direction at bottom and the air outlet of described ajutage, described return fan be arranged near described backwind tube and return air inlet consistent with return air direction; In described fresh wind tube and exhaust duct, be respectively arranged with new air valve and the 5th controller thereof and valve for air exhaust and the 6th controller thereof; Described interior sensor comprises indoor humidity sensor, indoor temperature transmitter and indoor CO
2sensor, on the steam pipe of described humidifier section, on the steam/heat water pipe of hot coil, on the chilled water pipe of cooling coil, be respectively arranged with the first control valve and the first controller thereof, the second control valve and second controller thereof, the 3rd control valve and the 3rd controller thereof; Also be respectively arranged with humidity sensor in machine, the first built-in temperature sensor, the second built-in temperature sensor at the wind outlet of described humidifier section, the wind outlet of hot coil, the wind outlet of cooling coil; The input of described variable air volume system controller respectively with described indoor humidity sensor, indoor temperature transmitter, indoor CO
2sensor is electrically connected by wire, and the input of variable air volume system controller is also electrically connected by wire with humidity sensor, the first built-in temperature sensor, the second built-in temperature sensor in described machine respectively; Above described pressure fan and return fan, be respectively arranged with the first frequency converter and the second frequency converter; The output of described variable air volume system controller is electrically connected by wire with the first frequency converter, the first controller, second controller, the 3rd controller, the 4th controller, the 5th controller, the 6th controller and the second frequency converter respectively.
In technique scheme, in described variable air volume system controller, be provided with air-supply controller, humidifier section air-out humidity temperature controller, hot coil leaving air temp controller, cooling coil leaving air temp controller, new trend controller.
In technique scheme, in described assembled air-conditioner unit, be also provided with roughing efficiency air filter, medium effeciency filter; Described roughing efficiency air filter is arranged between backwind tube and return fan, and described medium effeciency filter is inserted between cooling coil and circulated air valve.
A kind of air conditioning system with variable temperature/humidity control method, described control method comprises the following steps: (one) variable air volume system controller is by indoor humidity sensor, indoor temperature transmitter, indoor CO
2in sensor, machine, humidity sensor, the first built-in temperature sensor, the second built-in temperature sensor detect respectively indoor humidity, indoor temperature, indoor CO
2concentration, humidifier section leaving air temp, hot coil leaving air temp, cooling coil leaving air temp, through variable air volume system controller, computing produces control signal, wind speed regulation and control to pressure fan and return fan respectively, regulate respectively new air valve, valve for air exhaust and circulated air valve opening simultaneously, regulate respectively the second control valve on the first control valve, the hot coil steam/heat water pipe on humidifier section steam pipe and the 3rd control valve on cooling coil chilled water pipe; (2) humidification is closed, and dehumidifying, heating are opened, and the cooling coil leaving air temp controller in variable air volume system controller reaches dehumidifying object according to the 3rd control valve on the indoor humidity control chilled water pipe of measuring and ensures that indoor humidity maintains setting value; Hot coil leaving air temp controller in variable air volume system controller carries out heat treated according to the second control valve on the hot coil leaving air temp control hot coil steam/heat water pipe of measuring to air and ensures that hot coil leaving air temp maintains setting value; Thereby the air output that the air-supply controller in variable air volume system controller is controlled pressure fan according to the first frequency converter frequency of the indoor temperature control pressure fan of measuring ensures that indoor temperature maintains setting value; (3) dehumidifying is closed, heating, humidification are opened, hot coil leaving air temp controller in variable air volume system controller carries out heat treated according to the second control valve on the hot coil leaving air temp control hot coil steam/heat water pipe of measuring to air, ensures that hot coil leaving air temp maintains setting value; Humidifier section air-out humidity controller in variable air volume system controller reaches humidification object according to the first control valve on the indoor humidity control humidifier section steam pipe of measuring and ensures that indoor humidity maintains setting value; Thereby the air output that the air-supply controller in variable air volume system controller is controlled pressure fan according to the first frequency converter frequency of the indoor temperature control pressure fan of measuring ensures that indoor temperature maintains setting value; (4) no matter in summer or winter, new trend controller in variable air volume system controller is controlled the suitable new wind of introducing according to the CO2 concentration of Indoor measurement to new air valve and is ensured indoor air quality, valve for air exhaust and circulated air valve is controlled simultaneously.
In technique scheme, (37 adopt cascade control method to described cooling coil leaving air temp controller, cooling coil leaving air temp controller contains a master controller and a submaster controller, air-conditioned room is subject to the wet disturbing influence of Indoor Thermal, utilization is arranged on the indoor humidity sensor measurement indoor humidity in air-conditioned room, compare with indoor humidity setting value, comparative result is inputted to cooling coil leaving air temp master controller, by calculating a cooling coil leaving air temp setting value, cooling coil is subject to the wet interference effect of air-flow heat, utilization is arranged on the second built-in temperature sensor of cooling coil air outlet, measure the leaving air temp of cooling coil, measured value and the leaving air temp setting value calculating are compared, comparative result input cooling coil leaving air temp submaster controller, produce control signal, cooling coil leaving air temp submaster controller passes through the aperture of the 3rd control valve on the chilled water pipe of the 3rd controller control cooling coil according to this control signal, change the discharge in cooling coil, the wet interference of air-flow heat being subject to opposing cooling coil, maintain cooling coil leaving air temp in setting value.
In technique scheme, described humidifier section air-out humidity controller adopts cascade control method.Humidifier section leaving air temp controller contains a master controller and a submaster controller, air-conditioned room is subject to the wet disturbing influence of Indoor Thermal, utilization is arranged on the indoor humidity sensor measurement indoor humidity in air-conditioned room, compare with indoor humidity setting value, comparative result is inputted to humidifier section air-out humidity master controller, by calculating a humidifier section air-out humidity setting value; Humidifier section is subject to the wet interference effect of air-flow heat, utilization is arranged on the interior humidity sensor of machine of humidifier section air outlet, measure the air-out humidity of humidifier section, measured value and the air-out humidity setting value calculating are compared, and comparative result input humidifier section air-out humidity submaster controller, produces control signal, by the aperture of the first control valve on the first controller control humidifier section steam pipe, change the spraying steam amount in humidifier section, the wet interference of air-flow heat being subject in order to compensation, maintains air-supply humidity in setting value; Humidity is that the wind of setting value is sent in air-conditioned room, and the wet disturbance of Indoor Thermal being subject in order to compensate air-conditioned room, to ensure that indoor humidity maintains setting value.
In technique scheme, described new trend controller is subject to indoor CO according to air-conditioned room
2the impact of source disturbance, utilizes the indoor CO being arranged in air-conditioned room
2the indoor CO2 concentration of sensor measurement, by measured value and indoor CO
2concentration set point comparison, inputs new trend controller by fiducial value, produces control signal, and by the aperture of the new air valve of new trend controller control, the aperture of controlled circulation air valve and valve for air exhaust simultaneously, in order to CO in compensated chamber
2the impact of source disturbance, ensureing provides enough resh air requirements, to ensure the requirement of air quality.
Air-treatment of the present invention divide summer air handling process and winter processing procedure.While processing air, close the first control valve on humidifier section steam pipe summer, the 3rd control valve on the 3rd control valve on open cold coil pipe chilled water pipe and the steam/heat waterpipe of hot coil.By a series of control procedures, make air after the hot wet process of sub-cooling coil, ensure that indoor humidity maintains setting value, after hot coil processing and fan frequency conversion adjusting, ensure that indoor temperature maintains setting value.Cooling coil leaving air temp controller in variable air volume system controller reaches dehumidifying object according to the 3rd control valve on the indoor humidity control chilled water pipe of measuring and ensures that indoor humidity maintains setting value; Hot coil leaving air temp controller in variable air volume system controller carries out heat treated according to the 3rd control valve on the hot coil leaving air temp control hot coil steam/heat water pipe of measuring to air and ensures that hot coil leaving air temp maintains setting value; Thereby the air output that the air-supply controller in variable air volume system controller is controlled blower fan according to the indoor temperature control pressure fan frequency converter frequency of measuring ensures that indoor temperature maintains setting value.
While processing air, close the control and regulation valve on cooling coil chilled water pipe winter, the control and regulation valve on the steam/heat waterpipe of unlatching hot coil and the control and regulation valve on humidifier section steam pipe.By a series of control procedures, make air through warming and humidifying process after send into through pressure fan indoor, maintain indoor humidity setting value, indoor temperature setting value.It is characterized in that: the hot coil leaving air temp controller in variable air volume system controller carries out heat treated according to the control and regulation valve on the hot coil leaving air temp control hot coil steam/heat water pipe of measuring to air, ensure that hot coil leaving air temp maintains setting value; Humidifier section air-out humidity controller in variable air volume system controller reaches humidification object according to the control and regulation valve on the indoor humidity control humidifier section steam pipe of measuring and ensures that indoor humidity maintains setting value; Thereby the air output that the air-supply controller in variable air volume system controller is controlled blower fan according to the indoor temperature control fan frequency converter frequency of measuring ensures that indoor temperature maintains setting value.
Air conditioning system with variable temperature and humidity control device of the present invention and method, there is following beneficial effect: adopt described air conditioning system with variable temperature and humidity control device, can be fully in conjunction with variable air rate control, realize the decoupling zero control of temperature and humidity, not only energy-conservation but also improved control accuracy, system rejection to disturbance ability and reaction speed, under the condition that can constantly change at air quantity, still ensure the constant and indoor air quality of indoor temperature and humidity.The present invention can be widely used in the fields such as precision optical machinery, instrument and meter, medicine food, weaving, tobacco business.
Brief description of the drawings
Fig. 1 is air conditioning system with variable temperature and humidity control device structural representation;
Fig. 2 is cooling coil leaving air temp controller control flow chart;
Fig. 3 is hot coil leaving air temp controller control flow chart;
Fig. 4 is humidifier section leaving air temp controller control flow chart;
Fig. 5 is air-supply controller control flow chart;
Fig. 6 is new trend controller control flow chart.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail, but this embodiment should not be construed as limitation of the present invention.
As shown in Figure 1, air conditioning system with variable temperature and humidity control device of the present invention comprises assembled air-conditioner unit 1, variable air volume system controller 6 and interior sensor; Described assembled air-conditioner unit 1 top is disposed with ajutage 3, fresh wind tube 4 and exhaust duct 5, is disposed with pressure fan 7, humidifier section 8, hot coil 9, cooling coil 10, circulated air valve 12 and the 4th controller 24 and return fan 15 in described assembled air-conditioner unit 1; Described pressure fan 7 is arranged on the bottom of described ajutage 3 and air outlet and send point direction consistent, and described return fan 15 is arranged on that described backwind tube 2 is neighbouring and return air inlet is consistent with return air direction; In described fresh wind tube 4 and exhaust duct 5, be respectively arranged with new air valve 13 and the 5th controller 25 thereof and valve for air exhaust 14 and the 6th controller 26 thereof; Described interior sensor comprises indoor humidity sensor 28, indoor temperature transmitter 29 and indoor CO
2sensor 30.
The input of variable air volume system controller 6 is electrically connected with humidity sensor 28, temperature sensor 29, CO2 sensor 30 in indoor setting respectively, is also electrically connected with the temperature sensor 33 of the wind outlet setting of the temperature sensor 32 of the wind outlet setting of the humidity sensor 31 of the wind outlet setting of the humidifier section 8 in assembled air-conditioner unit 1, hot coil 9 in assembled air-conditioner unit 1, cooling coil 10 in assembled air-conditioner unit 1 respectively.The output of variable air volume system controller 6 respectively with pressure fan 7 in assembled air-conditioner unit 1 on the first frequency converter 17, the first controller 19 on the steam pipe of humidifier section 8 first control and regulation valve 18, second controller 21 on the steam/heat water pipe of hot coil 9 second control and regulation valve 20, the 3rd controller 23 on the chilled water pipe of cooling coil 10 the 3rd control and regulation valve 22, the 4th controller 24 on circulated air valve 12, the 5th controller 25 on new air valve 13, the 6th controller 26 on valve for air exhaust 14, the second frequency converter 27 on return fan 15 is electrically connected.
Summer is while processing air, closes the first control valve 18 on the steam pipe of humidifier section 8, the second control valve 20 on the 3rd control valve 22 on the chilled water pipe of open cold coil pipe 10 and the steam/heat waterpipe of hot coil 9.Cooling coil leaving air temp controller 37 obtains the indoor humidity sensor 28 being arranged in air-conditioned room 39 and the signal that is arranged on the second built-in temperature sensor 33 in the exit of the cooling coil 10 in assembled air-conditioner unit 1, with the comparison of related setting value, control the aperture of the 3rd control valve 22 on cooling coil 10 chilled water pipes by the 3rd controller 23, ensure that to reach dehumidifying object indoor humidity maintains setting value.Hot coil leaving air temp controller 36 obtains the signal of the first built-in temperature sensor 32 in the exit of the hot coil 9 being arranged in assembled air-conditioner unit 1, compare with hot coil leaving air temp setting value, control the aperture of the second control valve 20 on hot coil 9 steam/heat water pipes by second controller 21, air is carried out to heat treated and ensure that hot coil leaving air temp maintains setting value.Air-supply controller 34 obtains the signal of the indoor temperature transmitter 29 that is arranged on air-conditioned room 39, compare with indoor temperature setting value, control the first frequency converter 17 on pressure fan 7, regulate the rotating speed of pressure fan 7, it is indoor that thereby the air output of controlling pressure fan 7 enters through ajutage 3, thereby ensure that indoor temperature maintains setting value.Change the rotating speed of return fan 15, thereby the return air amount of controlling return fan 15 is in backwind tube 2 flows into assembled air-conditioner unit 1 simultaneously; Return fan 15 is interrelated with the control signal of pressure fan 7, the first frequency converter 17 synchronous frequency conversions on the second frequency converter 27 on return fan 15 and pressure fan 7 or carry out variable frequency adjustment according to certain relation.
While processing air, close the 3rd control valve 22 on cooling coil 10 chilled water pipes winter, the second control valve 20 on the steam/heat waterpipe of unlatching hot coil 9 and the first control valve 18 on humidifier section 8 steam pipes.Hot coil leaving air temp controller 36 obtains the signal of the first built-in temperature sensor 32 in hot coil 9 exits that are arranged in assembled air-conditioner unit 1, compare with hot coil leaving air temp setting value, control the aperture of the second control valve 20 on hot coil 9 steam/heat water pipes by second controller 21, air is carried out to heat treated and ensure that hot coil leaving air temp maintains setting value.Humidifier section air-out humidity controller 35 obtains the signal of humidity sensor 31 in the indoor humidity sensor 28 being arranged in air-conditioned room 39 and the machine that is arranged on humidifier section 8 exits in assembled air-conditioner unit 1, with corresponding setting value comparison, control the aperture of the first control valve 18 on humidifier section 8 steam pipes by the first controller 19, ensure that to reach humidification object indoor humidity maintains setting value.Air-supply controller 34 obtains the signal of the indoor temperature transmitter 29 that is arranged on air-conditioned room 39, compare with indoor temperature setting value, control the first frequency converter 17 on pressure fan 7, regulate the rotating speed of pressure fan 7, it is indoor that thereby the air output of controlling pressure fan 7 enters through ajutage 3, thereby ensure that indoor temperature maintains setting value.Change the rotating speed of return fan 15, the control signal of return fan and pressure fan is interrelated simultaneously, frequency converter 17 synchronous frequency conversions on frequency converter on return fan 15 27 and pressure fan 7 or carry out variable frequency adjustment according to certain relation.
No matter process air or process air winter summer, all need new wind, and air draft, and circulated air is controlled.New trend controller 38 obtains the signal of indoor carbon dioxide (CO2) sensor 30 being arranged in air-conditioned room 39, with the comparison of indoor CO2 concentration set point, control the aperture of new air valve 13 by the 5th controller 25, introduce suitable new wind and (in the time of indoor CO2 excessive concentration, introduce resh air requirement many; In the time that indoor CO2 concentration is low, introduce resh air requirement few) ensure indoor air quality, respectively valve for air exhaust 14 and circulated air valve 12 are controlled to (new air valve, valve for air exhaust, and the control signal of circulated air valve is interrelated) by the 6th controller 26 and the 4th controller 24 simultaneously.
Be illustrated in figure 2 cooling coil leaving air temp controller control flow chart.Cooling coil leaving air temp controller 37 contains a master controller 37-1 and a submaster controller 37-2.The control of cooling coil leaving air temp adopts cascade control method.Air-conditioned room 39 is subject to the wet disturbance 40 of Indoor Thermal to be affected, the humidity sensor 28 that utilization is arranged in air-conditioned room 39 is measured indoor humidity, set value RHset1(such as 60% with indoor humidity) relatively, comparative result is inputted to cooling coil leaving air temp master controller 37-1, by calculating a cooling coil leaving air temp setting value Tset1, cooling coil 10 is subject to wet interference 41 impacts of air-flow heat, utilization is arranged on the second built-in temperature sensor 33 of cooling coil 10 air outlets, measure the leaving air temp of cooling coil 10, by measured value and the leaving air temp setting value Tset1 comparison calculating, comparative result input cooling coil leaving air temp submaster controller 37-2, cooling coil leaving air temp submaster controller 37-2 controls the aperture of the 3rd control valve 22 on cooling coil 10 chilled water pipes by the 3rd controller 23, change the discharge in cooling coil 10, the wet interference 41 of air-flow heat being subject to opposing cooling coil 10, maintain cooling coil leaving air temp Tout1 in setting value, ensure that indoor humidity RHroom maintains setting value.
Be illustrated in figure 3 hot coil leaving air temp controller control flow chart.For the control of hot coil leaving air temp, hot coil 9 is subject to wet interference 41 impacts of air-flow heat, utilization is arranged on the first built-in temperature sensor 32 of cooling coil 9 air outlets, measure the leaving air temp of hot coil 9, by measured value and leaving air temp setting value Tset2 comparison, comparative result input hot coil leaving air temp controller 36, produce control signal, by the second controller 21 on the second control valve 20 control hot coil 9 steam the aperture of the second control valve 20 on hot-water line, change the steam/heat discharge in hot coil 9, the wet interference 41 of air-flow heat being subject in order to compensate hot coil 9, maintain wind pushing temperature Tout2 in setting value.
Be illustrated in figure 4 humidifier section leaving air temp controller control flow chart.Humidifier section leaving air temp controller 35 contains a master controller 35-1 and a submaster controller 35-2.The control of humidifier section air-out humidity adopts cascade control method.Air-conditioned room 39 is subject to the wet disturbance 40 of Indoor Thermal to be affected, the indoor humidity sensor 28 that utilization is arranged in air-conditioned room 39 is measured indoor humidity, with indoor humidity setting value RHset1 comparison, comparative result is inputted to humidifier section air-out humidity master controller 35-1, by calculating a humidifier section air-out humidity setting value RHset2; Humidifier section 8 is subject to wet interference 41 impacts of air-flow heat, utilization is arranged on the interior humidity sensor 31 of machine of humidifier section 8 air outlets, measure the air-out humidity of humidifier section 8, by measured value and the air-out humidity setting value RHset2 comparison calculating, comparative result input humidifier section air-out humidity submaster controller 35-2, produce control signal, control the aperture of the first control valve 18 on humidifier section 8 steam pipes by the first controller 19, change the spraying steam amount in humidifier section 8, the wet interference 41 of air-flow heat being subject in order to compensate humidifier section 8, maintains air-supply humidity RHout in setting value; Humidity is that the wind of RHout is sent in air-conditioned room 39, and the wet disturbance 40 of Indoor Thermal being subject in order to compensate air-conditioned room 39, to ensure that indoor humidity is that RHroom maintains setting value.
If Fig. 5 is air-supply controller control flow chart.Control for air-supply, air-conditioned room 39 is subject to the impact of the wet interference 40 of Indoor Thermal, the indoor temperature transmitter 29 that utilization is arranged in air-conditioned room 39 is measured indoor temperature, be Tset0 comparison by measured value and indoor temperature setting value, by fiducial value input air-supply controller 34, produce control signal, control pressure fan 7 by the first frequency converter 17, regulate the rotating speed of pressure fan 7, to ensure that indoor temperature is that Troom maintains setting value.Air-supply controller 34 is controlled the frequency converter 27 on return fan 15 simultaneously, the control signal of return fan and pressure fan is interrelated, the first frequency converter 17 synchronous frequency conversions on the second frequency converter 27 on return fan 15 and pressure fan 7 or carry out variable frequency adjustment according to certain relation.
Be illustrated in figure 6 new trend controller.For new wind control, air-conditioned room 39 is subject to the impact of indoor CO2 source disturbance 42, utilization is arranged on CO2 concentration in CO2 sensor 30 measuring chambers in air-conditioned room 39, be CO2set comparison by measured value and indoor CO2 concentration set point, fiducial value is inputted to new trend controller 38, produce control signal, control the aperture of new air valve 13 by the 5th controller 25, simultaneously by aperture (the new air valve of the 4th controller 24 and the 6th controller 26 difference controlled circulation air valves 12 and valve for air exhaust 14, valve for air exhaust, the control signal of circulated air valve is interrelated), in order to the impact of CO2 source disturbance 42 in compensated chamber, guarantee provides enough resh air requirements, to ensure the requirement of air quality.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
The content not being described in detail in this description belongs to the known prior art of professional and technical personnel in the field.
Claims (6)
1. an air conditioning system with variable temperature and humidity control device, comprises assembled air-conditioner unit (1), variable air volume system controller (6) and interior sensor; Described assembled air-conditioner unit (1) top is disposed with ajutage (3), fresh wind tube (4) and exhaust duct (5), is disposed with pressure fan (7), humidifier section (8), hot coil (9), cooling coil (10), circulated air valve (12) and the 4th controller (24) and return fan (15) in described assembled air-conditioner unit (1); It is consistent with air supply direction that described pressure fan (7) is arranged on bottom and the air outlet of described ajutage (3), and described return fan (15) is arranged on that backwind tube (2) is neighbouring and return air inlet is consistent with return air direction; In described fresh wind tube (4) and exhaust duct (5), be respectively arranged with new air valve (13) and the 5th controller (25) thereof and valve for air exhaust (14) and the 6th controller (26) thereof; In described variable air volume system controller (6), be provided with air-supply controller (34), humidifier section air-out humidity controller (35), hot coil leaving air temp controller (36), cooling coil leaving air temp controller (37), new trend controller (38); New trend controller (38) in variable air volume system controller (6) is according to the CO of Indoor measurement
2concentration is controlled the suitable new wind of introducing to new air valve (13) and is ensured indoor air quality, valve for air exhaust (14) and circulated air valve (12) is controlled simultaneously; Described interior sensor comprises indoor humidity sensor (28), indoor temperature transmitter (29) and indoor CO
2sensor (30), it is characterized in that: on the steam pipe of described humidifier section (8), on the steam/heat water pipe of hot coil (9), on the chilled water pipe of cooling coil (10), be respectively arranged with the first control valve (18) and the first controller (19) thereof, the second control valve (20) and second controller (21) thereof, the 3rd control valve (22) and the 3rd controller (23) thereof; Also be respectively arranged with humidity sensor in machine (31), the first built-in temperature sensor (32), the second built-in temperature sensor (33) at the wind outlet of described humidifier section (8), the wind outlet of hot coil (9), the wind outlet of cooling coil (10); The input of described variable air volume system controller (6) respectively with described indoor humidity sensor (28), indoor temperature transmitter (29), indoor CO
2sensor (30) is electrically connected by wire, and the input of variable air volume system controller (6) is also electrically connected by wire with humidity sensor (31), the first built-in temperature sensor (32), the second built-in temperature sensor (33) in described machine respectively; Above described pressure fan (7) and return fan (15), be respectively arranged with the first frequency converter (17) and the second frequency converter (27); The output of described variable air volume system controller (6) is electrically connected by wire with the first frequency converter (17), the first controller (19), second controller (21), the 3rd controller (23), the 4th controller (24), the 5th controller (25), the 6th controller (26) and the second frequency converter (27) respectively.
2. air conditioning system with variable temperature and humidity control device according to claim 1, is characterized in that: in described assembled air-conditioner unit (1), be also provided with roughing efficiency air filter (16), medium effeciency filter (11); Described roughing efficiency air filter (16) is arranged between backwind tube (2) and return fan (15), and described medium effeciency filter (11) is inserted between cooling coil (10) and circulated air valve (12).
3. an air conditioning system with variable temperature/humidity control method, is characterized in that: described control method comprises the following steps:
(1) variable air volume system controller (6) is by indoor humidity sensor (28), indoor temperature transmitter (29), indoor CO
2in sensor (30), machine, humidity sensor (31), the first built-in temperature sensor (32), the second built-in temperature sensor (33) detect respectively indoor humidity, indoor temperature, indoor CO
2concentration, humidifier section (8) air-out humidity, hot coil (9) leaving air temp, cooling coil (10) leaving air temp, produce control signal through variable air volume system controller (6) computing, wind speed regulation and control to pressure fan (7) and return fan (15) respectively, regulate respectively new air valve (13), valve for air exhaust (14) and circulated air valve (12) aperture, regulate respectively the first control valve (18) on humidifier section (8) steam pipe, the 3rd control valve (22) valve opening on the second control valve (20) on hot coil (9) steam/heat water pipe and cooling coil (10) chilled water pipe,
(2) humidification is closed, dehumidifying, heating are opened, and the cooling coil leaving air temp controller (37) in variable air volume system controller (6) reaches dehumidifying object according to the 3rd control valve (22) on the indoor humidity control chilled water pipe of measuring and ensures that indoor humidity maintains setting value; Hot coil leaving air temp controller (36) in variable air volume system controller (6) carries out heat treated according to the second control valve (20) on hot coil (9) leaving air temp control hot coil (9) the steam/heat water pipe of measuring to air and ensures that hot coil (9) leaving air temp maintains setting value; Air-supply controller (34) in variable air volume system controller (6) according to measure indoor temperature control pressure fan (7) the first frequency converter (17) thus frequency control pressure fan (7) air output ensure that indoor temperature maintains setting value;
(3) dehumidifying is closed, heating, humidification are opened, hot coil leaving air temp controller (36) in variable air volume system controller (6) carries out heat treated according to the second control valve (20) on hot coil (9) leaving air temp control hot coil (9) the steam/heat water pipe of measuring to air, ensures that hot coil (9) leaving air temp maintains setting value; Humidifier section air-out humidity controller (35) in variable air volume system controller (6) reaches humidification object according to the first control valve (18) on indoor humidity control humidifier section (8) steam pipe of measuring and ensures that indoor humidity maintains setting value; Air-supply controller (34) in variable air volume system controller (6) according to measure indoor temperature control pressure fan (7) the first frequency converter (17) thus frequency control pressure fan (7) air output ensure that indoor temperature maintains setting value;
(4), no matter in summer or winter, the new trend controller (38) in variable air volume system controller (6) is according to the CO of Indoor measurement
2concentration is controlled the suitable new wind of introducing to new air valve (13) and is ensured indoor air quality, valve for air exhaust (14) and circulated air valve (12) is controlled simultaneously.
4. air conditioning system with variable temperature/humidity control method according to claim 3, it is characterized in that: described cooling coil leaving air temp controller (37) adopts cascade control method, cooling coil leaving air temp controller (37) contains a master controller (37-1) and a submaster controller (37-2), air-conditioned room (39) is subject to wet disturbance (40) impact of Indoor Thermal, the indoor humidity sensor (28) that utilization is arranged in air-conditioned room (39) is measured indoor humidity, compare with indoor humidity setting value, comparative result is inputted to cooling coil leaving air temp master controller (37-1), by calculating a cooling coil (10) leaving air temp setting value, cooling coil (10) is subject to the wet interference effect of air-flow heat, utilization is arranged on the second built-in temperature sensor (33) of cooling coil air outlet, measure the leaving air temp of cooling coil (10), measured value and the leaving air temp setting value calculating are compared, comparative result input cooling coil leaving air temp submaster controller (37-2), produce control signal, cooling coil leaving air temp submaster controller (37-2) is controlled the aperture of the 3rd control valve (22) on the chilled water pipe of cooling coil (10) by the 3rd controller (23) according to this control signal, change the discharge in cooling coil (10), wet disturb (41) of air-flow heat that are subject to opposing cooling coil (10), maintain cooling coil (10) leaving air temp in setting value.
5. air conditioning system with variable temperature/humidity control method according to claim 3, is characterized in that: described humidifier section air-out humidity controller (35) adopts cascade control method.Humidifier section leaving air temp controller (35) contains a master controller (35-1) and a submaster controller (35-2), air-conditioned room (39) is subject to wet disturbance (40) impact of Indoor Thermal, the indoor humidity sensor (28) that utilization is arranged in air-conditioned room (39) is measured indoor humidity, compare with indoor humidity setting value, comparative result is inputted to humidifier section air-out humidity master controller (35-1), by calculating a humidifier section (8) air-out humidity setting value, humidifier section (8) is subject to wet disturb (41) of air-flow heat to be affected, utilization is arranged on the interior humidity sensor (31) of machine of humidifier section (8) air outlet, measure the air-out humidity of humidifier section (8), measured value and the air-out humidity setting value calculating are compared, comparative result input humidifier section air-out humidity submaster controller (35-2), produce control signal, control the aperture of the first control valve (18) on humidifier section (8) steam pipe by the first controller (19), change the spraying steam amount in humidifier section (8), wet disturb (41) of air-flow heat that are subject in order to compensation, maintain air-supply humidity in setting value, humidity is that the wind of setting value is sent in air-conditioned room (39), and the wet disturbance (40) of Indoor Thermal being subject in order to compensate air-conditioned room, to ensure that indoor humidity maintains setting value.
6. air conditioning system with variable temperature/humidity control method according to claim 3, is characterized in that: described new trend controller (38) is subject to indoor CO according to air-conditioned room (39)
2the impact of source disturbance (42), utilizes the indoor CO being arranged in air-conditioned room (39)
2cO in sensor (30) measuring chamber
2concentration, by measured value and indoor CO
2concentration set point comparison, fiducial value is inputted to new trend controller (38), produce control signal, control the aperture of new air valve (13) by new trend controller (38), the aperture of controlled circulation air valve (12) and valve for air exhaust (14) simultaneously, in order to CO in compensated chamber
2the impact of source disturbance (42), ensureing provides enough resh air requirements, to ensure the requirement of air quality.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203345A (en) * | 1997-06-23 | 1998-12-30 | 运载器有限公司 | Humidity control thermostat and method for controlling air conditioning system |
| CN102095747A (en) * | 2010-11-19 | 2011-06-15 | 南京工业大学 | Manmade climate comprehensive experiment system |
| CN202747542U (en) * | 2012-07-11 | 2013-02-20 | 武汉裕生智能节能设备有限公司 | Temperature and humidity control device for variable air volume air conditioning system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3162880B2 (en) * | 1993-06-30 | 2001-05-08 | 三洋電機株式会社 | Air conditioning control system |
-
2012
- 2012-07-11 CN CN201210239255.4A patent/CN102778009B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1203345A (en) * | 1997-06-23 | 1998-12-30 | 运载器有限公司 | Humidity control thermostat and method for controlling air conditioning system |
| CN102095747A (en) * | 2010-11-19 | 2011-06-15 | 南京工业大学 | Manmade climate comprehensive experiment system |
| CN202747542U (en) * | 2012-07-11 | 2013-02-20 | 武汉裕生智能节能设备有限公司 | Temperature and humidity control device for variable air volume air conditioning system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平7-19563A 1995.01.20 * |
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