CN100507389C - Air conditioner and its control method - Google Patents

Air conditioner and its control method Download PDF

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Publication number
CN100507389C
CN100507389C CN 200580007743 CN200580007743A CN100507389C CN 100507389 C CN100507389 C CN 100507389C CN 200580007743 CN200580007743 CN 200580007743 CN 200580007743 A CN200580007743 A CN 200580007743A CN 100507389 C CN100507389 C CN 100507389C
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China
Prior art keywords
heat exchanger
heat load
load
air conditioner
air
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Expired - Fee Related
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CN 200580007743
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Chinese (zh)
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CN1946974A (en
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石田智
松井伸树
薮知宏
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Daikin Industries Ltd
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Daikin Industries Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/1411—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant
    • F24F3/1429—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by absorbing or adsorbing water, e.g. using an hygroscopic desiccant alternatively operating a heat exchanger in an absorbing/adsorbing mode and a heat exchanger in a regeneration mode

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Air Conditioning (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

An air conditioner processes a latent heat load and a sensible heat load in a room by using a refrigeration cycle with an inverter compressor (7) and has heat exchangers (3, 5), an absorbing agent, and a control section (2). The absorbing agent performs absorbing operation for absorbing moisture in passing air whose heat is absorbed by the heat exchangers (3, 5) functioning as evaporators and performs also recovery operation for separating moisture from passing air heated by the heat exchangers (3, 5) functioning as condensers. The control section (2) performs control such that the absorbing operation and recovery operation by the absorbing agent are switched at predetermined time intervals. The control section (2) also performs control of capacity of the inverter compressor (7) and control for changing the absorbing operation and switching time intervals such that a predetermined load out of a total heat load, which is the sum of latent heat and sensible heat, latent heat, and sensible heat is processed with priority.

Description

The control method of air conditioner and air conditioner
Technical field
The present invention relates to the control method of a kind of air conditioner and air conditioner, especially relate to the air conditioner that utilizes steam compression type refrigerating circulation that indoor latent heat load and sensible heat load are handled with compressor.
Background technology
All the time, can use adsorbent to adjust that the air conditioner of air humidity is known drier damping machine and a drier investigation mission outside the city or town machine.For example in patent documentation 1 described air-conditioning system, have two drier (adsorbent), carry out the absorption action and the regeneration action of each drier off and on.And, for example the regeneration by carrying out first drier repeatedly and second drier to the dehumidifying of handling air and first drier to the dehumidifying of handling air and the regeneration of second drier, thereby to the adjusting that dehumidifies of indoor air.
In patent documentation 2 described humidity control devices, also utilize first absorptive element (assembly) with adsorbent adsorb the action and utilize second absorptive element regenerate the action first the action and utilize second absorptive element adsorb the action and utilize first absorptive element regenerate the action second the action between alternately switch, with second air of first air of absorption side or regeneration side to indoor supply, thereby dehumidify running or humidification running.
In addition, for the dehumidifying of the drier formula investigation mission outside the city or town machine of existing use adsorbent and the ability control of humidification running following method has been proposed.
(I),, a kind of humidity and temperature method that the running of the heat pump that becomes the thermal source that makes desiccant regeneration is controlled according to conditioned space proposed as the control method that the regeneration air temperature is adjusted together as described in the patent documentation 3.
(2) as described in the patent documentation 4, determine regeneration air temperature controlling method as setting value and measured value, propose a kind ofly to use the device of water adsorption speed that suppress to handle the drier in the air path and promote the device of the intensification of the regeneration air in the regeneration air path to carry out the method for ability control according to indoor air humidity or supply gas humidity.
The device that this promotion regeneration air heats up can make the rising of regeneration air temperature or use the assisted heating device of the drier upstream side that is configured in the regeneration air path that the regeneration air temperature is risen by the regeneration air flow that reduces in the regeneration air path.The device that suppresses adsorption rate can suppress water adsorption speed by the circulation that stops to handle the processing air in the air path, or by make handle air towards from be located at handle the drier the air path the downstream upstream the bypass flow path of side bypass circulate and suppress water adsorption speed.
Moreover, as other control methods of the ability of dehumidifying running and humidification running, also can consider the method for controlling by the balance of adjusting air-breathing exhaust air quantity.
Patent documentation 1: Japanese patent laid-open 10-9963 communique
Patent documentation 2: the Japan Patent spy opens the 2004-60954 communique
Patent documentation 3: Japanese patent laid-open 9-318128 communique
Patent documentation 4: Japanese patent laid-open 10-54586 communique
Summary of the invention
In the existing air conditioner of above-mentioned use adsorbent, between absorption action that utilizes the adsorbents adsorb water in air to divide and regeneration action that the moisture in the adsorbent is broken away from, switch, but, do not adopt special otherwise effective technique in the prior art for the control of this switching.If the time interval of switching is long, then the suction-operated of adsorbent is near the limit, adsorption moisture fully, therefore must switch at interval with reasonable time, if determined that this reasonable time at interval, then, utilize common method of adjustment that the capacity of compressor is controlled and get final product for the ability of dehumidifying humidification.
In the air conditioner of handling latent heat load and sensible heat load, carry out which kind of ability for judgement and control the suitable highly effective technology that do not have.
A technical problem to be solved by this invention provide a kind of in process chamber latent heat load and the air conditioner of sensible heat load in can carry out the air conditioner of suitable ability control and the control method of air conditioner.
On the other hand, the ability control of the dehumidifying running of the existing drier formula investigation mission outside the city or town machine in patent documentation 3 and the patent documentation 4 and humidification running, for example be that the ability control of control target is feasible for the continous way humidifying/dehumidifying apparatus with the air themperature, but for the batch (-type) humidifying/dehumidifying apparatus, since the time delay that air temperature variations changes with respect to operating condition when intermittently switching greatly and in the stream Temperature Distribution (also comprising) of each several part over time interior wait reason greatly, can not be suitable for.
Another technical problem to be solved by this invention provides a kind of air conditioner of the control of carrying out control of suitable air conditioner ability and/or sensible heat latent heat treating capacity ratio and the control method of air conditioner.
The air conditioner of first invention utilizes the steam compression type refrigerating circulation with compressor that indoor latent heat load and sensible heat load are handled, and comprises heat exchanger, adsorbent and control part.Adsorbent adsorbs action and regeneration action, in the absorption action, adsorbents adsorb is by the airborne moisture that passes through of the heat exchanger heat absorption that plays a role as evaporimeter, in the regeneration action, adsorbent discharges moisture to the air that passes through by the heat exchanger heats that plays a role as condenser.Control part is controlled the absorption action and the regeneration that make adsorbent and is moved to switch at interval the switching time of regulation.In addition, control part carries out the volume controlled of compressor and the switching time of the change control at interval of absorption action and regeneration action for the given load in priority treatment total heat load, latent heat load and the sensible heat load, wherein total heat load is latent heat load and sensible heat load sum.
At this, adsorbent adsorbs action by the heat exchanger that plays a role as evaporimeter, and by the heat exchanger that plays a role as the condenser action of regenerating.And the change control in the time interval (switching time at interval) of the absorption action of adsorbent and the switching of regeneration action is undertaken by control part with the volume controlled of compressor.
By change interval switching time, can change the ratio (hereinafter referred to as sensible heat latent heat treating capacity ratio) of ability (hereinafter referred to as the latent heat disposal ability) with the ability (hereinafter referred to as the sensible heat disposal ability) of handling sensible heat load of the processing latent heat load of air conditioner.On the other hand, by carrying out the volume controlled of compressor, can make the increase and decrease of latent heat disposal ability and sensible heat disposal ability sum (hereinafter referred to as full heat treatment capacity).That is, control part can be adjusted latent heat disposal ability, sensible heat disposal ability and full heat treatment capacity respectively.
And the control part with this adjustment function carries out the volume controlled and the switching time of the change control at interval of compressor for the given load in priority treatment total heat load, latent heat load and the sensible heat load.Because carry out this control, so in this air conditioner, carry out suitable ability control easily.
For example as the air conditioner of second invention, when selecting the given load of priority treatment by the user, the load that priority treatment user selects can be met the air conditioner surroundings of hobby.
For example as the 3rd air conditioner of inventing, when the difference, sensible heat disposal ability of handling size according to latent heat load disposal ability and latent heat and sensible heat are handled the difference of size and full heat treatment capacity and the difference of heat treatment size are determined the given load of priority treatment entirely, for example the load with the difference maximum carries out priority treatment as given load, can obtain the harmony of total heat load, latent heat load, sensible heat load processing.
The air conditioner of second invention in the air conditioner of first invention, also comprises input part.Input part supplies the user to select the given load of preferentially handling.
The air conditioner of the 3rd invention, in the air conditioner of first invention, control part is according to the definite given load of preferentially handling of first difference, second difference and the 3rd difference.First difference is handle the current ability of total heat load and total heat load size poor.Second difference is handle the current ability of latent heat load and latent heat load size poor.The 3rd difference is handle the current ability of sensible heat load and sensible heat load size poor.
The air conditioner of the 4th invention, in first invention to the 3rd invention in each the air conditioner, when control part was latent heat load in the given load of preferentially handling, the change that makes the volume controlled of utilizing compressor carry out the treating capacity of latent heat load had precedence over and utilizes the switching time of change control at interval to carry out the change of the treating capacity of latent heat load.
At this, when the priority treatment latent heat load, the volume controlled of at first carrying out compressor changes the treating capacity of latent heat load, and when still not enough, the switching time of the change control at interval of adsorbing action and regeneration action further changes the treating capacity of latent heat load.Like this owing at first carry out the volume controlled of compressor, so the variation of latent heat load treating capacity can realize faster, can reach the processing of required latent heat load fast.
The air conditioner of the 5th invention, in first invention to the 3rd invention in each the air conditioner, when control part is latent heat load in the given load of preferentially handling, makes the change that utilizes the switching time of change control at interval to carry out the treating capacity of latent heat load have precedence over the volume controlled of utilizing compressor and carry out the change of the treating capacity of latent heat load.
At this, when the priority treatment latent heat load, the switching time of the change control at interval of at first adsorbing action and regeneration action changes the treating capacity of latent heat load, and when still not enough, the volume controlled of carrying out compressor further changes the treating capacity of latent heat load.Like this, because at first carry out the switching time of change control at interval, even so when needs increase the treating capacity of latent heat load,, thereby increase the treating capacity that energy consumption can increase latent heat load not significantly also owing to the control that improves the capacity of compressor.For example, controlling by the switching time of change at interval when strengthening the latent heat load treating capacity and can guarantee required latent heat load treating capacity, then there is no need to improve the capacity of compressor with respect to the ratio of sensible heat load treating capacity.
The air conditioner of the 6th invention, in first invention to the 3rd invention in each the air conditioner, when control part was sensible heat load in the given load of preferentially handling, the change that makes the volume controlled of utilizing compressor carry out the treating capacity of sensible heat load had precedence over and utilizes the switching time of change control at interval to carry out the change of the treating capacity of sensible heat load.
At this, when the priority treatment sensible heat load, the volume controlled of at first carrying out compressor changes the treating capacity of sensible heat load, and when still not enough, the switching time of the change control at interval of adsorbing action and regeneration action further changes the treating capacity of sensible heat load.Like this owing at first carry out the volume controlled of compressor, so the variation of sensible heat load treating capacity can realize faster, can reach the processing of required sensible heat load fast.
The air conditioner of the 7th invention, in first invention to the 3rd invention in each the air conditioner, when control part is sensible heat load in the given load of preferentially handling, makes the change that utilizes the switching time of change control at interval to carry out the treating capacity of sensible heat load have precedence over the volume controlled of utilizing compressor and carry out the change of the treating capacity of sensible heat load.
At this, when the priority treatment sensible heat load, the switching time of the change control at interval of at first adsorbing action and regeneration action changes the treating capacity of sensible heat load, and when still not enough, the volume controlled of carrying out compressor further changes the treating capacity of sensible heat load.Like this, because at first carry out the switching time of change control at interval, even so when needs increase the treating capacity of sensible heat load,, thereby increase the treating capacity that energy consumption can increase sensible heat load not significantly also owing to the control that improves the capacity of compressor.For example, controlling by the switching time of change at interval when strengthening the sensible heat load treating capacity and can guarantee required sensible heat load treating capacity, then there is no need to improve the capacity of compressor with respect to the ratio of latent heat load treating capacity.
The air conditioner of the 8th invention in each the air conditioner, when control part is total heat load in the given load of preferentially handling, at first carries out the volume controlled of compressor in first invention is invented to the 3rd.
Because can make the total heat load increase and decrease effectively, so, when necessary priority treatment total heat load, at first carry out the volume controlled of compressor at this by the capacity that changes compressor.
The air conditioner of the 9th invention, in first invention to the 3rd invention in each the air conditioner, when control part is total heat load in the given load of preferentially handling, at first the latent heat load treating capacity and the ratio of sensible heat load treating capacity are fixed, carried out the volume controlled of compressor then by the switching time of control at interval.
Because when total heat load is preferential, do not need to change sensible heat latent heat treating capacity ratio basically, so, after at first fixedly sensible heat latent heat treating capacity compares, carry out the volume controlled of compressor again at this.Therefore, suppress the variation of unnecessary sensible heat latent heat treating capacity ratio.
More particularly, in the air conditioner of the mode that the absorption action and the regeneration of employing switching adsorbent are moved, than adjusting sensible heat latent heat treating capacity ratio, it is extremely complicated then probably to cause ability to be controlled as if the sensible heat latent heat load in the cooperation total heat load.But, at this, the treating capacity of total heat load is changed, after the treating capacity of the load of sensible heat or latent heat and sensible heat or latent heat reaches to a certain degree equilibrium, can change the treating capacity of remaining sensible heat load or latent heat load by the adjustment of sensible heat latent heat treating capacity ratio, thereby control is oversimplified.
The air conditioner of the tenth invention in each the air conditioner, has first adsorption heat exchanger and second adsorption heat exchanger that the surface is provided with adsorbent as heat exchanger in first invention is invented to the 9th.And control part switches between first state and second state.In first state, the absorption action of adsorbent that will be by first adsorption heat exchanger or the air behind regeneration action dehumidifying or the humidification are to indoor supply.In second state, the absorption action of adsorbent that will be by second adsorption heat exchanger or the air behind regeneration action dehumidifying or the humidification are to indoor supply.
In this air conditioner, have two adsorption heat exchangers as heat exchanger, switching between the air state behind indoor conveying dehumidifying or the humidification (second state) to the air state behind indoor conveying dehumidifying or the humidification (first state) and from another adsorption heat exchanger from an adsorption heat exchanger.Like this, owing to have two adsorption heat exchangers, so can when the adsorbent that makes an adsorption heat exchanger adsorbs action, make the action of regenerating of the adsorbent of another heat exchanger, thus the air behind indoor lasting conveying dehumidifying or humidification serially.
The air conditioner of the 11 invention, in each the air conditioner, heat exchanger is as utilizing the side heat exchanger in first invention is invented to the tenth.And this air conditioner also has the heat source side heat exchanger except that utilizing the side heat exchanger.
At this,, also has the heat source side heat exchanger except that making adsorbent adsorb utilizing the side heat exchanger of action and regeneration action.
In addition, as utilizing the side heat exchanger, also can be equipped with a plurality of heat exchangers that make adsorbent adsorb action and regenerate and move.In addition, make adsorbent adsorb the heat exchanger of action and regeneration action and the heat exchanger that other sensible heat load is handled special use as utilizing the side heat exchanger also can be equipped with.
The air conditioner of the 12 invention, to the 11 invention in each the air conditioner, control part carries out the volume controlled and the switching time of the change control at interval of compressor according in the pressure of the temperature of the pressure of the temperature of evaporimeter, evaporimeter, condenser and condenser at least one in first invention.
At this, can draw the state of the cold-producing medium in the heat exchanger according to the temperature and pressure (temperature of the temperature of evaporimeter, the pressure of evaporimeter, condenser and the pressure of condenser) that makes adsorbent adsorb the heat exchanger of action and regeneration action.This refrigerant condition is the factor that adsorbent temperature is produced big influence.On the other hand, because the absorption of adsorbent action and regeneration action to be switching at interval the switching time of regulation, so, be difficult to then guarantee that it infers precision as if the temperature of only inferring adsorbent according to the temperature and humidity of adsorbent and surroundings.
In view of this, according to the pressure of temperature that directly has influence on latent heat load disposal ability and sensible heat load are handled, especially the adsorbent temperature of latent heat load disposal ability has the evaporimeter of much relations pressure, condenser and condenser at least one carry out the volume controlled and the switching time of the change control at interval of compressor.Ability control (the change control at interval of the volume controlled of compressor and switching time) when thus, carrying out refrigerated dehumidification running and the running of heating humidification etc. is more suitable.
The control method of air conditioner of the 13 invention is the control method of utilizing steam compression type refrigerating circulation with compressor and heat exchanger, using the air conditioner that a kind of adsorbent that adsorbs action and regeneration action handles indoor latent heat load and sensible heat load.The absorption action of adsorbent is the action of passing through airborne moisture of absorption by the heat exchanger heat absorption that plays a role as evaporimeter.The regeneration action of adsorbent is to the action of passing through to break away from the air by the heat exchanger heats that plays a role as condenser with moisture.And, in the control method of this air conditioner, controlling the absorption action and the regeneration that make adsorbent moves to switch at interval the switching time of regulation, and, carry out the volume controlled and the switching time of the change control at interval of compressor as the given load in total heat load, latent heat load and the sensible heat load of latent heat load and sensible heat load sum for priority treatment.
The air conditioner of the 14 invention is the air conditioner that utilizes steam compression type refrigerating circulation with compressor that indoor latent heat load and sensible heat load are handled.Air conditioner comprises heat exchanger, adsorbent and control part.Adsorbent adsorbs action and regeneration action, in the absorption action, adsorbents adsorb is by the airborne moisture that passes through of the heat exchanger heat absorption that plays a role as evaporimeter, in the regeneration action, adsorbent makes moisture discharge to the air that passes through by the heat exchanger heats that plays a role as condenser.Control part is controlled the absorption action and the regeneration that make adsorbent and is moved to switch at interval the switching time of regulation.Control part carries out the volume controlled and/or the switching time of the change control at interval of compressor according in the pressure of the temperature of the pressure of the temperature of evaporimeter, evaporimeter, condenser and condenser at least one.
At this, notice with air themperature and compare, the temperature of adsorbent is easier to follow refrigerant temperature, so replace the regeneration air temperature used in the prior art etc., carry out the volume controlled and/or the switching time of the change control at interval of compressor according in the pressure of the temperature of the pressure of the temperature of evaporimeter, evaporimeter, condenser and condenser at least one.Sensible heat latent heat treating capacity when latent heat ability control in the time of therefore, can carrying out than the more suitable dehumidifying humidification of prior art (control of dehumidifying humidification water component) and dehumidifying humidification is than control.
The air conditioner of the 15 invention, in the air conditioner of the 14 invention, heat exchanger is the adsorption heat exchanger that surface bears has adsorbent.
At this, in the surface bears of heat exchanger adsorbent is arranged, the temperature of adsorbent can with refrigerant temperature interlock very doughtily.Therefore, it is very effective to carry out the volume controlled and/or the switching time of the change control at interval of compressor according in the pressure of the temperature of the pressure of the temperature of evaporimeter, evaporimeter, condenser and condenser at least one.The control of the sensible heat latent heat treating capacity ratio when latent heat ability control in the time of thus, can carrying out more suitable dehumidifying humidification and dehumidifying humidification.
The air conditioner of the 16 invention, in the air conditioner of the 14 invention or the 15 invention, heat exchanger is as utilizing the setting of side heat exchanger, and air conditioner also has the heat source side heat exchanger.At this, owing to also have the heat source side heat exchanger, so help handling sensible heat load.
The air conditioner of the 17 invention, in each the air conditioner, control part also carries out the volume controlled and/or the switching time of the change control at interval of compressor according to indoor air humidity value in the 14 invention is invented to the 16.At this, can more suitably carry out the ability control of air conditioner.
The air conditioner of the 18 invention, in each the air conditioner, control part is also according to volume controlled from heat exchanger to the humidity value of indoor leaked-in air and/or the switching time of the change control at interval of carrying out compressor from the 14 invention is invented to the 17.At this, can more suitably carry out the ability control of air conditioner.
The air conditioner of the 19 invention, in each the air conditioner, control part is also according to volume controlled from heat exchanger to the temperature value of indoor leaked-in air and/or the switching time of the change control at interval of carrying out compressor from the 14 invention is invented to the 18.At this, can more suitably carry out the ability control of air conditioner.
The control method of the air conditioner of the 20 invention, this air conditioner utilization has the steam compression type refrigerating circulation of compressor and heat exchanger, use a kind of adsorb by the absorption action of passing through airborne moisture of the heat exchanger that plays a role as evaporimeter heat absorption and with moisture to adsorbent by the regeneration of passing through to break away from the air action of the heat exchanger heats that plays a role as condenser, indoor latent heat load and sensible heat load are handled.In the control method of this air conditioner, controlling the described absorption action and the described regeneration that make described adsorbent moves to switch at interval the switching time of regulation, and, carry out the volume controlled and/or the switching time of the change control at interval of compressor according in the pressure of the temperature of the pressure of the temperature of evaporimeter, evaporimeter, condenser and condenser at least one.
At this, notice with air themperature and compare, the temperature of adsorbent is easier to follow refrigerant temperature, so replace the regeneration air temperature used in the prior art etc., carry out the volume controlled and/or the switching time of the change control at interval of compressor according in the pressure of the temperature of the pressure of the temperature of evaporimeter, evaporimeter, condenser and condenser at least one.The control of the sensible heat latent heat treating capacity ratio when latent heat ability control in the time of thus, can carrying out (control of dehumidifying humidification water component) and dehumidifying humidification than the more suitable dehumidifying humidification of prior art.
Description of drawings
Fig. 1 is the vertical view of internal structure of the air conditioner of expression one embodiment of the invention.
Fig. 2 is the cutaway view along the II-II direction of arrow of Fig. 1.
Fig. 3 is the cutaway view along the III-III direction of arrow of Fig. 1.
Fig. 4 is the loop diagram of the refrigerant loop of expression air conditioner.
Fig. 5 is the block diagram of the refrigerated dehumidification ventilation operating condition of expression air conditioner.
Fig. 6 is the block diagram of the refrigerated dehumidification cycle operation state of expression air conditioner.
Fig. 7 is the block diagram of the heating humidification ventilation operating condition of expression air conditioner.
Fig. 8 is the block diagram of the heating humidification cycle operation state of expression air conditioner.
Fig. 9 is that air conditioner uses condenser temperature and evaporator temperature to carry out the flow chart of ability control.
Figure 10 is the flow chart of air conditioner when using the refrigerated dehumidification that the humidity of condenser temperature and room air carries out ability control.
Figure 11 is the flow chart of air conditioner when using the heating humidification that the humidity of condenser temperature and room air carries out ability control.
Figure 12 is the summary pie graph of the air conditioner of another embodiment of the present invention (2).
Figure 13 (A) is the figure of first state of humidification running of the air conditioner of expression another embodiment of the present invention (3).
Figure 13 (B) is the figure of second state of humidification running of the air conditioner of expression another embodiment of the present invention (3).
Figure 14 is the figure of refrigerated dehumidification operating condition of the air conditioner of expression another embodiment of the present invention (4).
Figure 15 is the figure of refrigerated dehumidification operating condition of the air conditioner of expression another embodiment of the present invention (5).
(symbol description)
1 refrigerant loop, 2 control parts
3 first adsorption heat exchangers, 5 second adsorption heat exchangers
7 frequency-changeable compressors, 9 four-way switching valves
10 air conditioners, 12,13 temperature sensors
14 supply gas humidity sensors, 15 indoor air humidity sensors
101 compressors, 105 regenerative heat exchangers
110 air conditioners, 181,182 damping elements
210 air conditioners, 211 outdoor heat converters
213 first adsorption heat exchangers, 214 second adsorption heat exchangers
221 compressors, 222 outdoor heat converters
224 adsorption heat exchangers
The specific embodiment
The basic comprising of＜air conditioner 10 〉
As Fig. 1～shown in Figure 4, the air conditioner 10 of present embodiment is the drier formula investigation mission outside the city or town machine that carries adsorbents such as silica gel at heat-exchanger surface, the air that is used for the supply of the subtend interior space carries out refrigerated dehumidification running and the running of heating humidification, has the rectangular-shaped outer container of hollow 17.And in outer container 17, taken in refrigerant loop 1 etc.
As shown in Figure 4, refrigerant loop 1 connects expansion valve 11, second adsorption heat exchangers 5 such as the frequency-changeable compressor 7 of changeable frequency, four-way switching valve 9, first adsorption heat exchanger 3, motor-driven valves successively and forms the closed-loop path.First adsorption heat exchanger 3 and second adsorption heat exchanger 5 switch refrigerant flow path by four-way switching valve 9 and play the effect of either party in condenser and the evaporimeter.
Refrigerant loop 1 is filled cold-producing medium in whole loop, thereby makes the circulation of cold-producing medium circulation carrying out steam compression type refrigerating.
One end of first adsorption heat exchanger 3 is connected with four-way switching valve 9.The other end of first adsorption heat exchanger 3 is connected with an end of second adsorption heat exchanger 5 by expansion valve 11.The other end of second adsorption heat exchanger 5 is connected with four-way switching valve 9.
The formation of＜adsorption heat exchanger and adsorbent 〉
As Fig. 1～shown in Figure 3, first adsorption heat exchanger 3 and second adsorption heat exchanger 5 for example are made of the finned fin tube heat exchanger of intersection, particularly, a large amount of fins and the heat-transfer pipe made of copper that runs through fin that have the tabular aluminum of the rectangle of forming.On the outer surface of fin and heat-transfer pipe, carry adsorbent.Can adopt zeolite, silica gel, activated carbon, possess hydrophilic property or absorptive organic high molecular polymer class material, have carboxylic acid group or functional high molecule materials such as sulfonic amberlite lipid material, response to temperature macromolecule etc. as adsorbent.
The formation of＜compressor 〉
At this, as the compressor employing frequency-changeable compressor of changeable frequency.Frequency-changeable compressor can carry out volume controlled (output control) by changing frequency.
The formation of＜four-way switching valve 〉
Four-way switching valve 9 constitutes between the state (state shown in Fig. 4 (B)) of the state (state shown in Fig. 4 (A)) of the first aperture P1 and the 3rd aperture P3 connection and the second aperture P2 and the 4th aperture P4 connection and the first aperture P1 and the 4th aperture P4 connection and the second aperture P2 and the 3rd aperture P3 connection and carries out freely switching.And, by switching this four-way switching valve 9, thereby carry out that first adsorption heat exchanger 3 plays a role as condenser and first state that second adsorption heat exchanger 5 plays a role as evaporimeter and second adsorption heat exchanger 5 plays a role as condenser and the switching of second state that first adsorption heat exchanger 3 plays a role as evaporimeter.
The inside of＜air conditioner constitutes in detail 〉
Below with reference to Fig. 1～Fig. 3 the internal structure of air conditioner 10 is elaborated.In Fig. 1, with front, the lower end of outer container 17, with the back side of upper end, with the left surface of left end, with the right flank of right-hand member as outer container 17 as outer container 17 as outer container 17 as outer container 17.In addition, in Fig. 2～Fig. 3, the upper end of outer container 17 is upper surfaces of outer container 17, and the lower end is the lower surface of outer container 17.
Outer container 17 forms to bow and sees and be foursquare flat box-shaped.On the Left-Hand Panel 17a of outer container 17, be formed with first suction inlet 19 that is taken into extraneous gas OA and be taken into second suction inlet 21 that air is returned in conduct from indoor return-air RA.On the other hand, on the right panel 17b of outer container 17, be formed with and discharge gas EA to first blow-off outlet 23 of outdoor discharge and will be as the supply gas SA of Air Conditioning second blow-off outlet 25 to indoor supply.
Be provided with demarcation strip 27 as partition member in the inside of outer container 17.Inside at outer container 17 is separated to form air chamber 29a and canyon 29b by demarcation strip 27.Demarcation strip 27 is the vertical direction setting along the thickness direction of outer container 17, in Fig. 2～Fig. 3, extends the lower panel 17f that is set to as the outer container 17 of lower end from the top panel 17e as the outer container 17 of upper end.In Fig. 1, demarcation strip 27 extends the backplate 17d that is set to as the outer container 17 of upper end from the front plate 17c as the outer container 17 of lower end.In Fig. 1, demarcation strip 27 is configured in outer container 17 central portions and locates slightly to the right.
In canyon 29b, dispose the equipment such as frequency-changeable compressor 7 except that adsorption heat exchanger 3,5 in the refrigerant loop 1, and taken in first fan 79 and second fan 77.First fan 79 is connected with first blow-off outlet 23, and second fan 77 is connected with second blow-off outlet 25.
First end plates 33, second end plates 31 and the central authorities that are provided with in the air chamber 29a of outer container 17 as partition member divide plate 67.First end plates 33, second end plates 31 and to divide plate 67 be the vertical direction setting along the thickness direction of outer container 17 as Fig. 2～shown in Figure 3, extend from the top panel 17e of outer container 17 and to be set to lower panel 17f.
As shown in Figure 1, first end plates 33 and second end plates 31 are set to demarcation strip 27 from the Left-Hand Panel 17a extension of outer container 17.In Fig. 1, first end plates 33 be configured in outer container 17 central portions slightly to upside (backplate 17d side), in Fig. 1, second end plates 31 be configured in outer container 17 central portions slightly to downside (front plate 17c side).
As shown in Figure 1, divide plate 67 and between first end plates 33 and second end plates 31, extend setting.
Be separated to form first heat-exchanging chamber 69 in outer container 17 inside by first end plates 33, second end plates 31, division plate 67 and demarcation strip 27.And the Left-Hand Panel 17a in outer container 17 inside by first end plates 33, second end plates 31, division plate 67 and outer container 17 is separated to form second heat-exchanging chamber 73.That is, first heat-exchanging chamber 69 is positioned at the right side in Fig. 1, and second heat-exchanging chamber 73 is positioned at left side, first heat-exchanging chamber 69 and the 73 adjacent formation arranged side by side of second heat-exchanging chamber in Fig. 1.
In first heat-exchanging chamber 69, dispose first adsorption heat exchanger 3, in second heat-exchanging chamber 73, dispose second adsorption heat exchanger 5.
As shown in Figure 2, between the backplate 17d of first end plates 33 and outer container 17, be provided with level board 61, be formed with first and flow into the path 63 and first outflow pathway 65 as partition member.As shown in Figure 3, between the front plate 17c of second end plates 31 and outer container 17, be provided with level board 55, be formed with second and flow into the path 57 and second outflow pathway 59 as partition member.
The inner space of 61,55 pairs of outer containers 17 of level board is to separate up and down on the vertical direction at the thickness direction of outer container 17.And in Fig. 2, first flows into path 63 is formed on top panel 17e side, and first outflow pathway 65 is formed on lower panel 17f side, and in Fig. 3, second flows into path 57 is formed on top panel 17e side, and second outflow pathway 59 is formed on lower panel 17f side.
And, in Fig. 1, the first inflow path 63 and first outflow pathway 65 and the second inflow path 57 and second outflow pathway 59 are that datum level is configured symmetrically with the median plane (being positioned at the imaginary plane of front plate 17c and backplate 17d middle) of crosscut first heat-exchanging chamber 69 and second heat-exchanging chamber 73.
First flows into path 63 is communicated with first suction inlet 19.First outflow pathway 65 is communicated with first fan 79, and is communicated with first blow-off outlet 23.Second flows into path 57 is communicated with second suction inlet 21.Second outflow pathway 59 is communicated with second fan 77, and is communicated with second blow-off outlet 25.
As shown in Figure 2, be formed with four opening 33a～33d on first end plates 33, each opening 33a～33d is provided with first damper 47, second damper 49, the 3rd damper 51 and the 4th damper 53.Four opening 33a～33d follow column direction near configuration.That is, opening 33a～33d each two ground up and down is configured to latticedly, and the first opening 33a and the 3rd opening 33c are opened on first heat-exchanging chamber 69, and the second opening 33b and the 4th opening 33d are opened on second heat-exchanging chamber 73.
The first opening 33a makes first to flow into path 63 and 69 connections of first heat-exchanging chamber, and the 3rd opening 33c is communicated with first outflow pathway 65 and first heat-exchanging chamber 69.The second opening 33b makes first to flow into path 63 and 73 connections of second heat-exchanging chamber, and the 4th opening 33d is communicated with first outflow pathway 65 and second heat-exchanging chamber 73.
As shown in Figure 3, be formed with four opening 31a～31d on second end plates 33, each opening 31a～31d is provided with the 5th damper 35, the 6th damper 37, the 7th damper 39 and the 8th damper 41.Four opening 31a～31d follow column direction near configuration.That is, opening 31a～31d each two ground up and down is configured to latticedly, and the 5th opening 31a and minion mouth 31c are opened on first heat-exchanging chamber 69, and the 6th opening 31b and octavo mouth 31d are opened on second heat-exchanging chamber 73.
The 5th opening 31a makes second to flow into path 57 and 69 connections of first heat-exchanging chamber, and minion mouth 31c is communicated with second outflow pathway 59 and first heat-exchanging chamber 69.The 6th opening 31b makes second to flow into path 57 and 73 connections of second heat-exchanging chamber, and octavo mouth 31d is communicated with second outflow pathway 59 and second heat-exchanging chamber 73.
First state of＜air conditioner, second state and two states intermittence change action summary
Air conditioner 10 for present embodiment, shown in first state among Fig. 4 (A), will from indoor return-air RA or extraneous gas OA be taken into as second air dehumidify in first adsorption heat exchanger 3 that plays a role as condenser after, discharge gas EA or to indoor supply supply gas SA to outdoor discharge.Simultaneously, in first state, with extraneous gas OA or from indoor return-air RA be taken into as first air carry out humidification in second adsorption heat exchanger 5 that plays a role as evaporimeter after, discharge gas EA to indoor supply supply gas SA or to outdoor discharge.
And,, and utilize damper 47～53,35～41 to carry out the switching of air flow circuit to switch four-way switching valve 9 at interval the switching time at intermittence of regulation.Thus, become second form shown in Fig. 4 (B).
In this second state, with extraneous gas OA or from indoor return-air RA be taken into as first air carry out humidification in first adsorption heat exchanger 3 that plays a role as evaporimeter after, discharge gas EA to indoor supply supply gas SA or to outdoor discharge.Simultaneously, in second state, will from indoor return-air RA or extraneous gas OA be taken into as first air dehumidify in second adsorption heat exchanger 5 that plays a role as condenser after, discharge gas EA or to indoor supply supply gas SA to outdoor discharge.
Like this, the air conditioner 10 of present embodiment can alternately adsorb action and regeneration action by switching first state and second state in each adsorption heat exchanger 3,5.That is, in each adsorption heat exchanger 3,5, absorption action or regeneration are moved such intermittence to switch at interval the switching time at intermittence of regulation.
The dehumidifying running of＜air conditioner and humidification running 〉
Dehumidifying running and humidification running to air conditioner 10 describes below.
When air conditioner 10 dehumidifies running, first adsorption heat exchanger 3 and second adsorption heat exchanger 5 are alternately played a role, the moisture adsorbents adsorb that will in air conditioner 10, contain in the flow air by this first adsorption heat exchanger 3 or second adsorption heat exchanger 5 as evaporimeter.On the other hand, second adsorption heat exchanger 5 or first adsorption heat exchanger 3 are played a role as condenser, utilize condensation heat adsorbent moisture to be emitted to flow air in air conditioner 10, make adsorbent reactivation by this second adsorption heat exchanger 5 or first adsorption heat exchanger 3.And, by the cold-producing medium loop direction in the four-way switching valve 9 switching refrigerant loops 1, and switch air flow circuit by first～the 8th damper 47～53,35～41, thereby will be by the air after the adsorbent dehumidifying to indoor supply, and the air that will receive the moisture of emitting from adsorbent be emitted to outdoor.
Carry out humidification when running at air conditioner 10, utilize first adsorption heat exchanger 3 that plays a role as evaporimeter or the heat-absorbing action of second adsorption heat exchanger 5, the moisture adsorbents adsorb that will in air conditioner 10, contain in the flow air.On the other hand, utilize second adsorption heat exchanger 5 that plays a role as condenser or the exothermic effects of first adsorption heat exchanger 3, adsorbent moisture is emitted to flow air in air conditioner 10, make adsorbent reactivation.And, by the cold-producing medium loop direction in the four-way switching valve 9 switching refrigerant loops 1, and switch air flow circuits by first～the 8th damper 47～53,35～41, thus will receive the moisture of emitting from adsorbent and by the air of humidification to indoor supply.
Particularly, when under full ventilatory pattern, dehumidifying running (when dehumidifying the ventilation running), be taken into extraneous gas OA, moisture among first adsorption heat exchanger 3 that utilization plays a role as evaporimeter or the adsorbents adsorb extraneous gas OA of second adsorption heat exchanger, 5 surface bears, with the extraneous gas OA after the dehumidifying as supply gas SA to indoor supply.On the other hand, be taken into from indoor return-air RA, moisture is emitted from the adsorbent of second adsorption heat exchanger 5 that plays a role as condenser or first adsorption heat exchanger, 3 surface bears, make adsorbent reactivation, the return-air RA that will become humidifying air emits to outdoor as discharging gas EA.
When under circulation pattern, dehumidifying running (when dehumidifying cycle operation), be taken into from indoor return-air RA, first adsorption heat exchanger 3 that utilization plays a role as evaporimeter or the adsorbents adsorb moisture of second adsorption heat exchanger, 5 surface bears, with the return-air RA after the dehumidifying as supply gas SA to indoor supply.On the other hand, regeneration for adsorbent, be taken into extraneous gas OA, moisture is emitted to this extraneous gas OA from the adsorbent of second adsorption heat exchanger 5 that plays a role as condenser or first adsorption heat exchanger, 3 surface bears, make adsorbent reactivation, the extraneous gas OA behind the humidification is emitted to outdoor as discharging gas EA.
When under full ventilatory pattern, carrying out the humidification running (when carrying out humidification ventilation running), be taken into from indoor return-air RA, the moisture that contains in first adsorption heat exchanger 3 that utilization plays a role as evaporimeter or the air that adsorbents adsorb was taken into of second adsorption heat exchanger, 5 surface bears, with the return-air RA after the dehumidifying as discharging gas EA to outdoor discharge.On the other hand, be taken into extraneous gas OA, moisture is emitted from the adsorbent of second adsorption heat exchanger 5 that plays a role as condenser or first adsorption heat exchanger, 3 surface bears, makes adsorbent reactivation, with the extraneous gas OA behind the humidification as supply gas SA to indoor supply.
When under circulation pattern, carrying out the humidification running (when carrying out the humidification cycle operation), be taken into extraneous gas OA, the moisture that contains among first adsorption heat exchanger 3 that utilization plays a role as evaporimeter or the extraneous gas OA that adsorbents adsorb was taken into of second adsorption heat exchanger, 5 surface bears is emitted as discharging gas EA the extraneous gas OA after the dehumidifying to outdoor.On the other hand, be taken into from indoor return-air RA, moisture is emitted from the adsorbent of second adsorption heat exchanger 5 that plays a role as condenser or first adsorption heat exchanger, 3 surface bears, makes adsorbent reactivation, with the return-air RA behind the humidification as supply gas SA to indoor supply.
＜control by each concrete condition that turns round and the air-conditioning ability of control part control
As shown in Figure 5, in the present embodiment, for the temperature of the cold-producing medium of measuring first adsorption heat exchanger, 3 inside and be provided with thermistor equitemperature sensor 12.For the temperature of the cold-producing medium of measuring second adsorption heat exchanger, 5 inside and be provided with temperature sensor 13.Particularly, thereby the temperature of the heat-transfer pipe contact measurement heat-transfer pipe that passes through for cold-producing medium of these temperature sensors 12,13 and each absorption heat exchanger 3,5 is measured the temperature of cold-producing medium, is connected with the control part 2 that is made of CPU etc.
Control part 2 is according to the temperature of the cold-producing medium in temperature sensor 12,13 detected first adsorption heat exchangers 3 and second adsorption heat exchanger 5, to controlling at interval the volume controlled and the switching time at intermittence of being implemented by the FREQUENCY CONTROL of frequency-changeable compressor 7.Control part 2 has the input part 2a such as flush type switch that supply user or attendant to import, carry out the volume controlled of frequency-changeable compressor 7 and the intermittently switching time of control at interval, so that the load of answering priority treatment (latent heat load, sensible heat load or total heat load) in this input part 2a input is carried out priority treatment.So-called total heat load refers to latent heat load and sensible heat load sum.
Particularly, intermittently the switching time of control at interval be meant as the switching time at intermittence of carrying out the time interval that four-way switching valve 9 switches at interval and as the switching time at intermittence of the control at interval in time interval of the switching of the switching of carrying out 47～53,35～41 pairs of air flow circuits of first～the 8th damper and four-way switching valve 9.
In the present embodiment, the refrigerant temperature in first adsorption heat exchanger 3 and second adsorption heat exchanger 5, also use the humidity of supply gas humidity and room air as appending controlled condition.The indoor air humidity sensor 15 that is used to measure the supply gas humidity sensor 14 of supply gas humidity and is used to measure indoor air humidity also is connected with control part 2.
Respectively turning round of air conditioner 10 to present embodiment is elaborated below, then the air-conditioning ability control that comprises in intermittently being controlled at interval switching time is elaborated.At this, operating as example as the representativeness running with refrigerated dehumidification running and heating humidification describes, but by the time of the switching of switching and first～47～53,35～41 pairs of air flow circuits of the 8th damper of four-way switching valve 9 being staggered or controlling switching, the humidification that also can freeze running and the running of heating humidification of 47～53,35～41 pairs of air flow circuits of first～the 8th damper more subtly.
(refrigerated dehumidification ventilation running)
In first state, under the state that drives first fan 79 and second fan 77, four-way switching valve 9 is switched to state shown in Figure 5.The result is, carries out regeneration (disengaging) action of adsorbent in second adsorption heat exchanger 5 that plays a role as condenser, carries out the absorption action of adsorbent in first adsorption heat exchanger 3 that plays a role as evaporimeter.That is, in first state, will supply with to second adsorption heat exchanger 5 from indoor return-air RA, the moisture that will break away from from second adsorption heat exchanger 5 imposes on return-air RA, thus with the return-air RA behind the humidification as discharge gas EA to outdoor discharge.On the other hand, extraneous gas OA is supplied with to first adsorption heat exchanger 3, the moisture in first adsorption heat exchanger 3 among the absorption extraneous gas OA, thereby the extraneous gas OA after will dehumidifying as supply gas SA to indoor supply.This supply gas SA is cooled off by first adsorption heat exchanger 3 that plays a role as evaporimeter in dehumidifying.
That is, the high-temperature high-pressure refrigerant that spues from frequency-changeable compressor 7 flows into second adsorption heat exchanger 5 with thermophore as heating, and the adsorbent that second adsorption heat exchanger, 5 outer surfaces are carried heats.Thereby break away from from adsorbent by this heating moisture, the adsorbent on second adsorption heat exchanger 5 obtains regeneration.
On the other hand, reduce pressure by expansion valve 11 by second adsorption heat exchanger, 5 condensed refrigerant.Post-decompression cold-producing medium flows into first adsorption heat exchanger 3 as cooling with thermophore.In this first adsorption heat exchanger 3, produce heat of adsorption during moisture in the adsorbents adsorb extraneous gas OA of first adsorption heat exchanger, 3 outer surfaces carryings.Cold-producing medium in first adsorption heat exchanger 3 absorbs the heat of this heat of adsorption and extraneous gas OA and evaporates.Cold-producing medium after the evaporation returns in the frequency-changeable compressor 7 and is compressed.
When in this first state with the regulation switching time at intermittence carry out above-mentioned action at interval after, switch to second state.
In second state, under the state that drives first fan 79 and second fan 77, four-way switching valve 9 is switched to from the state of frequency-changeable compressor 7 to first adsorption heat exchanger, 3 force feed cold-producing mediums from state shown in Figure 5 (promptly from the state of frequency-changeable compressor 7 to second adsorption heat exchanger, 5 force feed cold-producing mediums).In addition, by the switching of damper 47～53 and 35～41 pairs of air flow circuits of damper, make from indoor return-air RA and supply with to first adsorption heat exchanger 3, extraneous gas OA supplies with to second adsorption heat exchanger 5.
The result is, in second state, will supply with to first adsorption heat exchanger 3 from indoor return-air RA, and the moisture that will break away from from the adsorbent on first adsorption heat exchanger 3 is emitted to return-air RA, thereby the return-air RA behind the humidification is discharged as discharging gas EA.On the other hand, extraneous gas OA is supplied with to second adsorption heat exchanger 5, utilizes the moisture among the extraneous gas OA that adsorbents adsorb was taken on second adsorption heat exchanger 5, thus the extraneous gas OA after will dehumidifying as supply gas SA to indoor supply.This supply gas SA is cooled off by second adsorption heat exchanger 5 that plays a role as evaporimeter in dehumidifying.
That is, the high-temperature high-pressure refrigerant that spues from frequency-changeable compressor 7 flows into first adsorption heat exchanger 3 with thermophore as heating, and the adsorbent that first adsorption heat exchanger, 3 outer surfaces are carried heats.Thereby break away from from adsorbent by this heating moisture, the adsorbent on first adsorption heat exchanger 3 obtains regeneration.
On the other hand, reduce pressure by expansion valve 11 by first adsorption heat exchanger, 3 condensed refrigerant.Post-decompression cold-producing medium flows into second adsorption heat exchanger 5 as cooling with thermophore.In this second adsorption heat exchanger 5, produce heat of adsorption during moisture in the adsorbents adsorb extraneous gas OA of second adsorption heat exchanger, 5 outer surfaces carryings.Cold-producing medium in second adsorption heat exchanger 5 absorbs the heat of this heat of adsorption and extraneous gas OA and evaporates.Cold-producing medium after the evaporation returns in the frequency-changeable compressor 7 and is compressed.
Alternately switch the first above-mentioned state and second state by interval switching time at intermittence, thereby carry out refrigerated dehumidification and ventilation continuously with regulation.
(refrigerated dehumidification cycle operation)
Compare with above-mentioned refrigerated dehumidification ventilation running, the absorption action and the regeneration action of basic heat exchanger are identical, but as shown in Figure 6, following difference is arranged: be taken into extraneous gas OA, supply with to second adsorption heat exchanger 5 that plays a role as condenser (or first adsorption heat exchanger 3), and as discharging gas EA to outdoor discharge, and, to supply with to first adsorption heat exchanger 3 that plays a role as evaporimeter (or second adsorption heat exchanger 5) from the indoor return-air RA that is taken into, and as supply gas SA to indoor supply.That is, be to have carried out dehumidifying, cooled gas to the supply gas SA of indoor supply from the indoor return-air RA that is taken into, not with extraneous gas OA to indoor supply.
(heating humidification ventilation running)
In first state, as shown in Figure 7, be taken into extraneous gas OA, supply with to second adsorption heat exchanger 5, with the extraneous gas OA (humidifying air) of the moisture that breaks away from the adsorbent that has received from second adsorption heat exchanger 5 as supply gas SA to indoor supply.On the other hand, will supply with to first adsorption heat exchanger 3 from the indoor return-air RA that is taken into, the moisture among the return-air RA is by the adsorbents adsorb on first adsorption heat exchanger 3.Like this, the return-air RA after the dehumidifying is as discharging gas EA to outdoor discharge.Supply gas SA is heated by second adsorption heat exchanger 5 that plays a role as condenser in humidification.
When after only carrying out above-mentioned action at interval under this first state, switch to second state with the switching time at intermittence of regulation.
In second state, under the state that drives first fan 79 and second fan 77, four-way switching valve 9 is switched to from the state of frequency-changeable compressor 7 to first adsorption heat exchanger, 3 force feed cold-producing mediums from state shown in Figure 7 (promptly from the state of frequency-changeable compressor 7 to second adsorption heat exchanger, 5 force feed cold-producing mediums).In addition, by the switching of damper 47～53 and 35～41 pairs of air flow circuits of damper, make from indoor return-air RA and supply with to second adsorption heat exchanger 5, extraneous gas OA supplies with to first adsorption heat exchanger 3.
The result is, in second state, the moisture that will break away from from the adsorbent on first adsorption heat exchanger 3 is emitted to extraneous gas OA, thus with the extraneous gas OA behind the humidification as supply gas SA to indoor supply.On the other hand, the moisture among the return-air RA is by the adsorbents adsorb on second adsorption heat exchanger 5, thereby the return-air RA after will dehumidifying discharges as discharging gas EA.Supply gas SA is by first adsorption heat exchanger, 3 heating that play a role as condenser.
Alternately switch the first above-mentioned state and second state by interval switching time at intermittence, thereby warm oneself humidification and ventilation continuously with regulation.
(heating humidification cycle operation)
Compare with above-mentioned heating humidification ventilation running, the absorption action and the regeneration action of basic heat exchanger are identical, but as shown in Figure 8, following difference is arranged: be taken into extraneous gas OA, supply with to first adsorption heat exchanger 3 that plays a role as evaporimeter (or second adsorption heat exchanger 5), and as discharging gas EA to outdoor discharge, and, to supply with to second adsorption heat exchanger 5 that plays a role as condenser (or first adsorption heat exchanger 3) from the indoor return-air RA that is taken into, and as supply gas SA to indoor supply.That is, to the supply gas SA of indoor supply be with from the indoor return-air RA humidification that is taken into, the heating after gas, not with extraneous gas OA to indoor supply.
(control of air-conditioning ability)
Below to air-conditioning ability control, be the volume controlled of frequency-changeable compressor 7 and intermittently switching time, change control at interval described.Particularly, the volume controlled of frequency-changeable compressor 7 is undertaken by the compressor frequency that changes frequency-changeable compressor 7, is to comprise the control that the latent heat ability of handling latent heat load is controlled at interior full heat energy power.Intermittently the switching time of change control at interval mainly is the ratio of handling the latent heat ability of latent heat load and the sensible capacity of handling sensible heat load, is the control of sensible heat calorific potential force rate.
In the present embodiment, when air conditioner 10 carried out above-mentioned arbitrary running, control part 2 was all according to first adsorption heat exchanger 3 and the evaporator temperature of second adsorption heat exchanger 5 and volume controlled and the intermittently switching time of the change control at interval that condenser temperature carries out frequency-changeable compressor 7 that play a role as evaporimeter and condenser.In addition, control part 2 as the control targets except that using evaporator temperature and condenser temperature, also can be with the one or more parameters in the temperature of the humidity of the humidity of room air, supply gas SA and supply gas SA as the control target.
At first to condenser temperature or evaporator temperature serve as the control target frequency-changeable compressor 7 volume controlled and intermittently switching time, change control at interval described.
When condenser temperature is controlled compressor frequency as the control target, compressor frequency is risen, compressor frequency is descended.When condenser temperature was controlled switching time at intermittence at interval as the control target, then shorten intermittently when condenser temperature is lower than desired value then prolonged switching time at intermittence at interval switching time at interval when condenser temperature is higher than desired value.
When evaporator temperature is controlled compressor frequency as the control target, compressor frequency is descended, compressor frequency is risen.When evaporator temperature was controlled switching time at intermittence at interval as the control target, then prolong intermittently when evaporator temperature is lower than desired value then shortened switching time at intermittence at interval switching time at interval when evaporator temperature is higher than desired value.
Moreover, also the combination of condenser temperature and evaporator temperature can be controlled compressor frequency and switching time at intermittence simultaneously at interval as the control target.
Control example when carrying out the control of air-conditioning ability below with reference to Fig. 9 to using these two control of condenser temperature and evaporator temperature target describes.This being controlled at when refrigerated dehumidification turns round and the heating humidification turns round all can be used.
At this, carrying out with condenser temperature Tc is that first target, evaporator temperature Te are the control of second target.As shown in Figure 9, at first current condenser temperature Tc and target condenser temperature Tc0 are compared (step S1 and step S2), if Tc=Tc0 then skips to step S5, if Tc＜Tc0 then improves compressor frequency (step S3).Thus, current condenser temperature Tc rises, and current evaporator temperature Te descends.On the other hand, if Tc〉Tc0 then reduces compressor frequency (step S4).Thus, current condenser temperature Tc descends, and current evaporator temperature Te rises.
Then, in step S5, current evaporator temperature Te and target evaporator temperature Te0 are compared (step S5 and step S6).If Te=Te0 does not then operate compressor frequency and switching time at intermittence at interval, be back to beginning.If Te＜Te0 then prolongs intermittently interval switching time (step S7), be back to beginning then.If intermittently prolong at interval switching time, then condenser temperature Tc and evaporator temperature Te rise.On the other hand, if Te〉Te0 (step S8) then shortens intermittently interval switching time (step S9), is back to beginning then.
At this, the intermittence that absorption is moved or the regeneration action is such in each adsorption heat exchanger 3,5 is to switch at interval the switching time at intermittence of regulation, so condenser temperature Tc and evaporator temperature Te are each typical value or average typical values between intermittence intermittently.
In this example, for make evaporator temperature Te and operation consistent with target evaporator temperature Te0 intermittently switching time (step S6～S9) at interval, then in order to adjust condenser temperature Tc once more operate compressor (step S1～S4) secondly operates intermittently the switching time of (step S6～S9) at interval in order to adjust evaporator temperature Te.In control flow shown in Figure 9, also can consider to carry out repeatedly this operation, even but may not be converged in Tc=Tc0 and Te=Te0, also no problem in the operation.
Control example when carrying out the control of air-conditioning ability below with reference to Figure 10 and Figure 11 to using these two control of condenser temperature and indoor air humidity target describes.The control shown in the flow chart of employing Figure 10 when carrying out the refrigerated dehumidification running, the control shown in the flow chart of employing Figure 11 when warming oneself the humidification running.
At this, carrying out with condenser temperature Tc is that first target, indoor air humidity Hra are the control of second target.
In the control when refrigerated dehumidification turns round, if improve compressor frequency, then condenser temperature Tc rises, and indoor air humidity Hra descends.In addition, intermittently switching time, then condenser temperature Tc and indoor air humidity Hra both sides rose at interval if prolong.
At first current condenser temperature Tc and target condenser temperature Tc0 are compared (step S11 and step S12), if Tc=Tc0 then skips to step S15, if Tc＜Tc0 then improves compressor frequency (step S13).At this moment, current condenser temperature Tc rises, and current indoor air humidity Hra descends.On the other hand, if Tc〉Tc0 then reduces compressor frequency (step S14).At this moment, current condenser temperature Tc descends, and current indoor air humidity Hra rises.
Then, current indoor air humidity Hra and target indoor air humidity Hra0 are compared (step S15 and step S16).If Hra=Hra0 does not then operate compressor frequency and switching time at intermittence at interval, be back to beginning.If Hra＜Hra0 then prolongs intermittently interval switching time (step S17), be back to beginning then.If intermittently prolong at interval switching time, then condenser temperature Tc and indoor air humidity Hra rise.On the other hand, if Hra〉Hra0 (step S18) then shortens intermittently interval switching time (step S19), returns beginning then.
Control when turning round with refrigerated dehumidification is identical, and in the control when the running of heating humidification, carrying out with condenser temperature Tc is that first target, indoor air humidity Hra are the control of second target.
In the control when the running of heating humidification, if improve compressor frequency, then condenser temperature Tc and indoor air humidity Hra both sides rise.In addition, intermittently switching time, then condenser temperature Tc rose at interval if prolong, and indoor air humidity Hra descends.
At this, at first current condenser temperature Tc and target condenser temperature Tc0 are compared (step S21 and step S22), if Tc=Tc0 then skips to step S25, if Tc＜Tc0 then improves compressor frequency (step S23).At this moment, current condenser temperature Tc and current indoor air humidity Hra both sides rise.On the other hand, if Tc〉Tc0 then reduces compressor frequency (step S24).At this moment, current condenser temperature Tc and current indoor air humidity Hra both sides descend.
Then, current indoor air humidity Hra and target indoor air humidity Hra0 are compared (step S25 and step S26).If Hra=Hra0 does not then operate compressor frequency and switching time at intermittence at interval, be back to beginning.If Hra＜Hra0 then shortens intermittently interval switching time (step S27), return beginning then.On the other hand, if Hra〉Hra0 (step S28) then prolongs intermittently interval switching time (step S29), returns beginning then.Intermittently switching time, then condenser temperature Tc rose at interval if prolong, and indoor air humidity Hra descends.
(controlling) based on the air-conditioning ability that initial input is set
Control, be the volume controlled of frequency-changeable compressor 7 and the intermittently switching time of change control at interval for the air-conditioning ability, be that the appropriate combination such as temperature of the humidity of the humidity of evaporator temperature and condenser temperature and room air, supply gas SA and supply gas SA are determined that the control target carries out as mentioned above, but also add the condition of setting based on initial input as described below.
Sometimes the load (latent heat load, sensible heat load or total heat load) of priority treatment is answered in meeting such as user in the input part 2a of control part 2 input.At this moment, owing to the load in this input, the volume controlled of frequency-changeable compressor 7 and the switching time at intermittence of control at interval can be subjected to following influence.
At first, when the load of answering priority treatment of input when being latent heat load, make and utilize the intermittently switching time of change control at interval to carry out the change of latent heat load treating capacity to have precedence over the volume controlled of utilizing frequency-changeable compressor 7 and carry out the change of latent heat load treating capacity.
In addition, when the load of answering priority treatment of input when being sensible heat load, make and utilize the intermittently switching time of change control at interval to carry out the change of sensible heat load treating capacity to have precedence over the volume controlled of utilizing frequency-changeable compressor 7 and carry out the change of sensible heat load treating capacity.
In addition, when the load of answering priority treatment of input is total heat load, then at first by the switching time at intermittence of control at interval with the ratio of latent heat load treating capacity and sensible heat load treating capacity, be sensible heat latent heat treating capacity than fixing, carry out the volume controlled of frequency-changeable compressor 7 then.
The feature of the air conditioner of＜present embodiment 〉
(1)
In the air conditioner 10 of present embodiment, first adsorption heat exchanger 3 and second adsorption heat exchanger 5 alternately play a role as condenser and evaporimeter.And, notice with the temperature of supply gas SA and compare with indoor air themperature, the temperature that directly influences the adsorbent of latent heat ability is easier to follow the refrigerant temperature of condenser and evaporimeter, ability as air conditioner 10 is controlled the control target of (volume controlled of frequency-changeable compressor 7 and the intermittently switching time of change control at interval), the regeneration air temperature of using in the replacement prior art etc. are used evaporator temperature and condenser temperature at this.
Sensible heat latent heat treating capacity when latent heat ability control in the time of therefore, can carrying out than the suitable dehumidifying humidification of prior art (control of dehumidifying humidification water component) and dehumidifying humidification is than control.
(2)
In the air conditioner 10 of present embodiment, first and second adsorption heat exchanger 3,5 is at the surface bears adsorbent, the temperature of adsorbent can with refrigerant temperature interlock very doughtily.Therefore, it is very effective to serve as with evaporator temperature and condenser temperature that the control target is carried out the ability control of air conditioner 10.
(3)
In air conditioner 10, can be that first target, evaporator temperature are that second target ground carries out ability control with condenser temperature, perhaps be first target, be that second target ground carries out ability control with the one or more parameters in indoor air humidity, supply gas SA humidity and the supply gas SA temperature with condenser temperature and evaporator temperature, compare with the situation of only carrying out the ability control of air conditioner 10, can more suitably carry out ability control according to condenser temperature and evaporator temperature.
(4)
In air conditioner 10, adsorbent adsorbs action by the adsorption heat exchanger 3,5 as the evaporimeter effect, and adsorbent is by the adsorption heat exchanger 5,3 that plays a role as the condenser action of regenerating.And the absorption action of adsorbent and the switching time of regeneration action, the change control of (intermittently switching time at interval) was undertaken by control part 2 with the volume controlled of frequency-changeable compressor 7 at interval.
By change intermittently switching time at interval, can change the latent heat disposal ability of air conditioner 10 and sensible heat disposal ability ratio, be sensible heat latent heat treating capacity ratio.On the other hand, by carrying out the volume controlled of frequency-changeable compressor 7, can make latent heat disposal ability and sensible heat disposal ability sum, be full heat treatment capacity increase and decrease.That is, control part 2 can be adjusted latent heat disposal ability, sensible heat disposal ability and full heat treatment capacity respectively.
And the control part 2 with this adjustment function carries out the volume controlled of frequency-changeable compressor 7 and the intermittently switching time of change control at interval for waiting the load (total heat load, latent heat load or sensible heat load) in input part 2a input to carry out priority treatment to the user.Because carry out this control, so in this air conditioner 10, can suitably carry out ability control, and can provide the air conditioner surroundings that satisfies this user preferences to the user.
Particularly, when the load of answering priority treatment is latent heat load, makes and utilize the intermittently switching time of change control at interval to carry out the change of latent heat load treating capacity to have precedence over the volume controlled of utilizing frequency-changeable compressor 7 and carry out the change of latent heat load treating capacity.That is, at this, when the priority treatment latent heat load, carry out at first that intermittently switching time, change control at interval changed the treating capacity of latent heat load, when still not enough, the volume controlled of carrying out frequency-changeable compressor 7 further changes the treating capacity of latent heat load.Like this, because at first carry out the intermittently switching time of change control at interval, even so when needs increase the treating capacity of latent heat load,, thereby increase the treating capacity that power consumption can increase latent heat load not significantly also owing to the control that improves the capacity of frequency-changeable compressor 7.For example, controlling by the switching time at intermittence of change at interval when strengthening the latent heat load treating capacity and can guarantee required latent heat load treating capacity, then there is no need to improve the capacity of frequency-changeable compressor 7 with respect to the ratio of sensible heat load treating capacity.
In addition, when the load of answering priority treatment is sensible heat load, also makes the change that utilizes the intermittently switching time of change control at interval to carry out the sensible heat load treating capacity have precedence over the volume controlled of utilizing frequency-changeable compressor 7 and carry out the change of sensible heat load treating capacity.That is, at this, when the priority treatment sensible heat load, carry out at first that intermittently switching time, change control at interval changed the treating capacity of sensible heat load, when still not enough, the volume controlled of carrying out frequency-changeable compressor 7 further changes the treating capacity of sensible heat load.Like this, because at first carry out the intermittently switching time of change control at interval, even so when needs increase the treating capacity of sensible heat load,, thereby increase the treating capacity that power consumption can increase sensible heat load not significantly also owing to the control that improves the capacity of frequency-changeable compressor 7.For example, controlling by the switching time at intermittence of change at interval when strengthening the sensible heat load treating capacity and can guarantee required sensible heat load treating capacity, then there is no need to improve the capacity of frequency-changeable compressor 7 with respect to the ratio of latent heat load treating capacity.
In addition, when the load of answering priority treatment is total heat load, at first, carry out the volume controlled of frequency-changeable compressor 7 then by intermittently the switching time of control at interval is fixing with sensible heat latent heat treating capacity ratio.This is because when total heat load is preferential, does not need to change sensible heat latent heat treating capacity ratio basically, so carry out the volume controlled of frequency-changeable compressor 7 again after at first fixedly sensible heat latent heat treating capacity compares.At this, suppress the variation of unnecessary sensible heat latent heat treating capacity ratio.More particularly, in the air conditioner 10 of the mode that the absorption action and the regeneration of employing switching adsorbent are moved, than adjusting sensible heat latent heat treating capacity ratio, it is extremely complicated then probably to cause ability to be controlled as if the sensible heat latent heat load in the cooperation total heat load.But, at this, at first fixing sensible heat latent heat treating capacity ratio, the treating capacity of total heat load is changed, after the treating capacity of the load of sensible heat or latent heat and sensible heat or latent heat reaches to a certain degree equilibrium, can change the treating capacity of remaining sensible heat load or latent heat load by the adjustment of sensible heat latent heat treating capacity ratio.Therefore, control is oversimplified.
Cooperate the sensible heat latent heat load ratio in the total heat load to adjust sensible heat latent heat treating capacity than complicated the reasons are as follows that can cause ability control.In air conditioner 10, adopt the mode that the indoor air temperature (sensible heat) and the humidity (latent heat) of processing load are recycled, so the influence of handled air condition directly is embodied in respectively on sensible heat treating capacity and the latent heat treating capacity.Therefore, because the running of air conditioner 10 and other air conditioners, sensible heat latent heat treating capacity ratio gradually changes, the sensible heat latent heat treating capacity of air conditioner 10 also gradually changes thereupon, even therefore determined sensible heat latent heat treating capacity ratio at first, but when the temperature humidity condition of handled air changed, required treating capacity also can change, thereby best sensible heat latent heat treating capacity ratio changes.Like this, the change of sensible heat latent heat treating capacity ratio is best to be carried out according to current required latent heat, each treating capacity ratio of sensible heat with adjusting, if in the volume controlled of utilizing frequency-changeable compressor 7 makes the way of full heat treatment amount increase and decrease, carry out when sensible heat latent heat treating capacity also gradually changes, so what then can cause controlling is complicated not good.
＜other embodiment 〉
More than one embodiment of the present of invention are illustrated, but the present invention is not defined as this embodiment, can carry out various changes in the scope that does not break away from inventive concept.
(1)
In the above-described embodiments, control target when controlling as the ability of carrying out air conditioner 10 is used condenser temperature and evaporator temperature, but condenser pressure and evaporator pressure also can similarly be carried out the ability control of the air conditioner 10 more suitable than prior art as the control target.
(2)
Also can be on the basis of the formation of the foregoing description, as shown in figure 12, being provided with does not have sorbing material, mainly carries out sensible heat heat exchanger 16 and the expansion valve 18 that sensible heat is handled, and improves the sensible heat disposal ability.Even the air conditioner of this formation, because the temperature of the adsorbent of adsorption heat exchanger 3,5 is still followed refrigerant temperature to a great extent, so condenser temperature and evaporator temperature or condenser pressure and evaporator pressure suitably can be carried out the ability control of air conditioner as the control target.
(3)
In the above-described embodiments, adsorbent is carried on the surface of first adsorption heat exchanger 3 and second adsorption heat exchanger 5, but the present invention is not limited thereto.For example also the present invention can be applied in the Japan Patent spy opens on the humidity control device (air conditioner) that the 2004-69257 communique put down in writing.
In the air conditioner 110 shown in Figure 13 (A), (B), have the damping element 181,182 of adsorbent and be used to make regenerative heat exchanger 105 separate configuration of adsorbent reactivation.Damping element 181,182 constitutes by the ripple board member of the planar plate members of rectangular flat plate shape and waveform shape is alternately stacked, and damping side path and cold side path are alternately divided formation across planar plate members ground.The surface bears of the ripple board member in being located at damping side path has the adsorbent that is made of inorganic porous material and response to temperature organic system macromolecular material.
Air conditioner 110 alternately carries out following two states: drive scavenger fan 108a and air-feeding ventilator 108b dehumidifies with 181 couples of return-air RA of the first damping element and first state that the second damping element, 182 usefulness extraneous gas OA are regenerated; And with the first damping element, the 181 usefulness extraneous gas OA regeneration and second state that dehumidifies with 182 couples of return-air RA of the second damping element.And air conditioner 110 will be by the extraneous gas OA behind damping element 181,182 humidifications to indoor supply.In addition, also can with by the extraneous gas OA after damping element 181,182 dehumidifying and return-air RA as supply gas SA to indoor supply and the running that dehumidifies, describe but humidification is turned round at this.
When humidification turned round, when driving scavenger fan 108a and air-feeding ventilator 108b, OA was taken in the outer container with extraneous gas, and return-air RA is taken in the outer container.In addition, when humidification turns round, utilizing compressor 101 to produce in the refrigerant loop of kind of refrigeration cycle, regenerative heat exchanger 105 is a condenser, and heat exchanger 107 is an evaporimeter.
With reference to Figure 13 (A) first action of humidification running is described.In this first action, carry out the absorption action of the first damping element 181 and the regeneration action of the second damping element 182.That is, in first action, carry out humidification by 182 pairs of air of the second damping element, by the adsorbents adsorb moisture of the first damping element 181.The return-air RA that is taken in the outer container flows into to the absorption side path of the first damping element 181.During this absorption side path of flowing through, the steam that contains among the return-air RA (moisture) is by adsorbents adsorb.Like this, the return-air RA after the dehumidification flows through heat exchanger 107, is cooled by the heat exchange with cold-producing medium.Then, seized the return-air RA of moisture and heat as discharging gas EA to outdoor discharge.
On the other hand, the extraneous gas OA that is taken in the outer container flows into to the cold side path of the first damping element 181.During this cold side path of flowing through, extraneous gas OA is absorbed in the heat of adsorption that is produced when moisture is by adsorbents adsorb in the absorption side path.The extraneous gas OA that has absorbed heat of adsorption flows through regenerative heat exchanger 105.At this moment, in regenerative heat exchanger 105, extraneous gas OA is heated by the heat exchange with cold-producing medium.
And, import to the absorption side path of the second damping element 182 by the extraneous gas OA of the first damping element 181 and regenerative heat exchanger 105 heating.In this absorption side path, adsorbent is heated by extraneous gas OA, and response to temperature organic system macromolecular material produces from the swelling volume phase transfer of contraction phase in opposite directions, thereby steam breaks away from from adsorbent.That is, carry out the regeneration of the second damping element 182.And the steam that breaks away from from adsorbent is emitted in extraneous gas OA, and extraneous gas OA is by humidification.Extraneous gas OA by the second damping element, 182 humidifications passes through heat exchanger 106.At this,,, extraneous gas OA is not cooled so not being heated also because heat exchanger 106 stops.If heat exchanger 106 plays a role, then extraneous gas OA is heated or cooled.The extraneous gas OA that comes out from heat exchanger 106 by behind the air-feeding ventilator 108b as supply gas SA to indoor supply.
Below with reference to Figure 13 (B) second action of humidification running is described.In this second action, opposite during with first action, carry out the absorption action of the second damping element 182 and the regeneration action of the first damping element 181.That is, in this second action, carry out humidification by 181 pairs of air of the first damping element, by the adsorbents adsorb steam of the second damping element 182.
The return-air RA that is taken in the outer container flows into to the absorption side path of the second damping element 182 shown in Figure 13 (B).During this absorption side path of flowing through, the steam that contains among the return-air RA is by adsorbents adsorb.Like this, the return-air RA after the dehumidification is cooled by the heat exchange with cold-producing medium by heat exchanger 107.Then, seized the return-air RA of moisture and heat as discharging gas EA to outdoor discharge.
On the other hand, the extraneous gas OA that is taken in the outer container flows into to the cold side path of the second damping element 182.During this cold side path of flowing through, extraneous gas OA is absorbed in the heat of adsorption that is produced when steam is by adsorbents adsorb in the absorption side path.The extraneous gas OA that has absorbed heat of adsorption is by regenerative heat exchanger 105.At this moment, in regenerative heat exchanger 105, extraneous gas OA is heated by the heat exchange with cold-producing medium.
Extraneous gas OA by the second damping element 182 and regenerative heat exchanger 105 heating imports to the absorption side path of the first damping element 181.In this absorption side path, adsorbent is heated by extraneous gas OA, and response to temperature organic system macromolecular material produces from the swelling volume phase transfer of contraction phase in opposite directions, thereby steam breaks away from from adsorbent.That is, carry out the regeneration of the first damping element 181.And the steam that breaks away from from adsorbent is emitted in extraneous gas OA, and extraneous gas OA is by humidification.Pass through heat exchanger 106 by the extraneous gas OA behind the first damping element, 181 humidifications.At this moment, because heat exchanger 106 stops,, extraneous gas OA is not cooled so not being heated also.And, the extraneous gas OA behind the humidification as supply gas SA to indoor supply.
In the air conditioner 110 shown in this Figure 13 (A), (B), because also switch first action and second action at interval with official hour, so if carry out ability control, then become beguine carries out ability control according to the temperature of supply gas SA etc. the more suitable control of situation according to the condenser temperature of the regenerative heat exchanger 105 that plays a role as condenser and condenser pressure.
(4)
Also the present invention can be used shown in Figure 14 by outdoor heat source side heat exchanger 211 and indoor the utilization in the air conditioner 210 that side heat exchanger 212,213,214 constitutes, effect same as the previously described embodiments can be obtained.
In air conditioner shown in Figure 14 210, as utilizing the side heat exchanger to have: do not have adsorbent and mainly carry out the adsorption heat exchanger 213,214 that sensible heat heat exchanger 212 that sensible heat handles and surface are provided with adsorbent, have outdoor heat converter 211 as the heat source side heat exchanger.The exhaust end of compressor 221 is connected with the first aperture P1 of first four-way switching valve 225, and the suction side is connected with the 4th aperture P4 of first four-way switching valve 225.One end of outdoor heat converter 211 is connected with the second aperture P2 of first four-way switching valve 225, and the other end is connected with the first aperture P1 of second four-way switching valve 226.One end of sensible heat heat exchanger 212 is connected with the 3rd aperture P3 of first four-way switching valve 225, and the other end is connected with the 4th aperture P4 of second four-way switching valve 226.In addition, to the arranged in order of the 3rd aperture P3 first adsorption heat exchanger 213, expansion valve 223 and second adsorption heat exchanger 214 are arranged with the second aperture P2 from second four-way switching valve 226.
First four-way switching valve 225 switches between the first aperture P1 and the second aperture P2 interconnects and the 3rd aperture P3 and the 4th aperture P4 interconnect first state (state shown in Figure 14) and the first aperture P1 and the 3rd aperture P3 interconnects and the second aperture P2 and the 4th aperture P4 interconnect second state.On the other hand, second four-way switching valve 226 switches between the first aperture P1 and the second aperture P2 interconnects and the 3rd aperture P3 and the 4th aperture P4 interconnect first state (state shown in Figure 14) and the first aperture P1 and the 3rd aperture P3 interconnects and the second aperture P2 and the 4th aperture P4 interconnect second state.
In air conditioner shown in Figure 14 210, carry out refrigerated dehumidification running and the running of heating humidification, describe but operate as example with refrigerated dehumidification at this.
In the refrigerated dehumidification running, first four-way switching valve 225 is set at first state shown in Figure 14, and the aperture of suitable variable expansion valve 223, makes outdoor heat converter 211 become condenser, and sensible heat heat exchanger 212 becomes evaporimeter.On the other hand, for first adsorption heat exchanger 213 and second adsorption heat exchanger 214, become condenser and second adsorption heat exchanger 214 and become first state of evaporimeter and second adsorption heat exchanger 214 and become condenser and first adsorption heat exchanger 213 and become at first adsorption heat exchanger 213 between second state of evaporimeter alternately repeatedly.
In the refrigerated dehumidification running, supply with extraneous gas OA to outdoor heat converter 211, supply with from indoor return-air RA to sensible heat heat exchanger 212 and first and second adsorption heat exchanger 213,214.And, the return-air RA that flows through behind the sensible heat heat exchanger 212 supplies with to indoor continuously as supply gas SA, the return-air RA after flowing through the return-air RA behind first adsorption heat exchanger 213 and flowing through second adsorption heat exchanger 214 alternately as supply gas SA to indoor supply.
In first state, carry out the absorption of the adsorbent of the regeneration action of adsorbent of first adsorption heat exchanger 213 and second adsorption heat exchanger 214 concurrently and move.In first state, second four-way switching valve 226 is set at state shown in Figure 14.In this state, the cold-producing medium that spues from compressor 221 condensation during successively by the outdoor heat converter 211 and first adsorption heat exchanger 213, by expansion valve 223 decompressions, then, during successively by second adsorption heat exchanger 214 and sensible heat heat exchanger 212, evaporate, and be compressed in the suction compressor 221.
In this first state, the extraneous gas OA after outdoor heat converter 211 absorbs heat from cold-producing medium is as discharging gas EA to outdoor discharge, and the return-air RA from indoor that is cooled off by sensible heat heat exchanger 212 returns to indoor as supply gas SA.In first adsorption heat exchanger 213, moisture breaks away from from the adsorbent by the cold-producing medium heating, and the moisture of this disengaging imposes on return-air RA.Discharge gas EA to outdoor discharge (with reference to the flow direction of return-air RA shown in dotted lines in Figure 14) from the moisture that first adsorption heat exchanger 213 breaks away from return-air RA conduct.In second adsorption heat exchanger 214, by adsorbents adsorb, RA dehumidifies to return-air from the moisture among the indoor return-air RA, and the heat of adsorption that produce this moment is absorbed by cold-producing medium.By the return-air RA after the dehumidifying of second adsorption heat exchanger 214 as supply gas SA to indoor returning (with reference to the flow direction of return-air RA shown in dotted lines in Figure 14).
On the other hand, in second state, carry out the regeneration of the adsorbent of the absorption action of adsorbent of first adsorption heat exchanger 213 and second adsorption heat exchanger 214 concurrently and move.In second state, the cold-producing medium that spues from compressor 221 condensation during successively by the outdoor heat converter 211 and second adsorption heat exchanger 214, by expansion valve 223 decompressions, then, during successively by first adsorption heat exchanger 213 and sensible heat heat exchanger 212, evaporate, and be compressed in the suction compressor 221.
In this second state, identical during with first state,, return to indoor as supply gas SA from indoor return-air RA as discharging gas EA at the extraneous gas OA of outdoor heat converter 211 after the cold-producing medium heat absorption by sensible heat heat exchanger 212 is cooled to outdoor discharge.On the other hand, in first adsorption heat exchanger 213, by adsorbents adsorb, RA dehumidifies to return-air from the moisture among the indoor return-air RA, and the heat of adsorption that produce this moment is absorbed by cold-producing medium.By after the dehumidifying of first adsorption heat exchanger 213 from indoor return-air RA as supply gas SA to indoor returning (flow direction of the return-air RA in reference to Figure 14 shown in the double dot dash line).In second adsorption heat exchanger 214, break away from the adsorbent of moisture after heating by cold-producing medium, the moisture after this disengaging imposes on return-air RA.Moisture after second adsorption heat exchanger 214 breaks away from is discharged gas EA to outdoor discharge (flow direction of the return-air RA with reference to Figure 14 shown in the double dot dash line) with return-air RA conduct.
In this air conditioner shown in Figure 14 210, because also switch first state and second state at interval with official hour, so if carry out ability control, then become beguine carries out ability control according to the temperature of supply gas SA etc. the more suitable control of situation according to the condenser temperature of first adsorption heat exchanger 213 that plays a role as condenser and evaporimeter and second adsorption heat exchanger 214 and evaporator temperature etc.
(5)
Also the present invention can be used shown in Figure 15 by outdoor heat source side heat exchanger 222 and indoor the utilization in the air conditioner 220 that side heat exchanger 224,227 constitutes, effect same as the previously described embodiments can be obtained.
In air conditioner shown in Figure 15 220, have outdoor heat converter 222 outdoor as the heat source side heat exchanger, indoor as utilizing the side heat exchanger to have: carry the adsorption heat exchanger 224 of adsorbent and do not have adsorbent and mainly carry out the sensible heat heat exchanger 227 that sensible heat is handled.
In air conditioner 220, carry out refrigerated dehumidification running and the running of heating humidification, describe but operate as example with refrigerated dehumidification at this.
In the refrigerated dehumidification running, four-way switching valve 225 is set at state shown in Figure 15, makes outdoor heat converter 222 become condenser, and sensible heat heat exchanger 227 becomes evaporimeter.And adsorption heat exchanger 224 becomes the absorption action of evaporimeter and regeneration that adsorption heat exchanger 224 becomes condenser action by the control of magnetic valve 232b and expansion valve 229 alternately repeatedly.Moreover, in the refrigerated dehumidification running, supply with extraneous gas OA to outdoor heat converter 222, supply with from indoor return-air RA to sensible heat heat exchanger 227 and adsorption heat exchanger 224.And, supply with continuously to indoor by sensible heat heat exchanger 227 cooled return-air RA, by the return-air RA after adsorption heat exchanger 224 dehumidifying as supply gas SA off and on to indoor supply.
In the absorption action, magnetic valve 232b is open, and the aperture of expansion valve 229 is suitably regulated.Under this state, the cold-producing medium that spues from compressor 221 is reduced pressure by expansion valve 229 after outdoor heat converter 222 condensations, then, during successively by second adsorption heat exchanger 224 and sensible heat heat exchanger 227, evaporate, and be compressed in the suction compressor 221.
In this absorption action, as discharging gas EA, return to indoor as supply gas SA from indoor return-air RA by sensible heat heat exchanger 227 is cooled to outdoor discharge at the extraneous gas OA of outdoor heat converter 222 after the cold-producing medium heat absorption.In adsorption heat exchanger 224, by adsorbents adsorb, RA dehumidifies to return-air from the moisture among the indoor return-air RA, and the heat of adsorption that produce this moment is absorbed by cold-producing medium.Return to indoor as supply gas SA by the return-air RA after adsorption heat exchanger 224 dehumidifying from indoor.
In the regeneration action, magnetic valve 232b closes, expansion valve 229 standard-sized sheets.Under this state, the cold-producing medium that spues from compressor 221 condensation during successively by outdoor heat converter 222 and adsorption heat exchanger 224 then by capillary 232a decompression, again in 227 evaporations of sensible heat heat exchanger, and sucks in the compressor 221 and is compressed.
In this regeneration action, as discharging gas EA, return to indoor as supply gas SA from indoor return-air RA in that sensible heat heat exchanger 227 is cooled to outdoor discharge at the extraneous gas OA of outdoor heat converter 222 after the cold-producing medium heat absorption.In adsorption heat exchanger 224, utilize cold-producing medium that adsorbent is heated and make its regeneration, the moisture that breaks away from from adsorbent imposes on from indoor return-air RA.The moisture that breaks away from from adsorption heat exchanger 224 with from indoor return-air RA as discharging gas EA to outdoor discharge (flow direction of the return-air RA with reference to Figure 15 shown in the double dot dash line).
In this air conditioner shown in Figure 15 220, because also switch the absorption action and the regeneration action of adsorption heat exchanger 224 at interval with official hour, so if carry out ability control, then become beguine carries out ability control according to the temperature of supply gas SA etc. the more suitable control of situation according to the condenser temperature of the adsorption heat exchanger 224 that plays a role as condenser and evaporimeter and evaporator temperature etc.
(6)
In the above-described embodiments, be provided with the input part 2a such as flush type switch that supply user or attendant to import, control part 2 carries out the volume controlled of frequency-changeable compressor 7 and the intermittently switching time of control at interval, so that the load (latent heat load, sensible heat load or total heat load) in this input part 2a input is carried out priority treatment.At this moment, priority treatment user selects the load of (input), can obtain more satisfying the air conditioner surroundings of hobby.
Like this, also can not import the load of answering priority treatment, and automatically determine to answer the load of priority treatment by control part 2.
For example, control part 2 can be according to the definite load of preferentially handling of first difference, second difference and the 3rd difference.First difference is handle the ability of current air conditioner 10 of total heat load and indoor total heat load size poor.Second difference is handle the current ability of latent heat load and indoor latent heat load size poor.The 3rd difference is handle the current ability of sensible heat load and indoor sensible heat load size poor.Particularly, the maximum that control part 2 is selected in first difference, second difference and the 3rd difference, if this maximum is the load that first difference then is defined as total heat load to answer priority treatment, if this maximum is the load that second difference then is defined as latent heat load to answer priority treatment, if this maximum is the load that the 3rd difference then is defined as sensible heat load to answer priority treatment.For the size of each load and the current ability of each load of processing, control part 2 can be judged according to the data that various air themperatures and refrigerant condition information (temperature and pressure) etc. obtain.
Like this, as if the load of automatically being determined to answer priority treatment by control part 2, then equalizability carries out the processing of total heat load, latent heat load, sensible heat load well.
(7)
In the above-described embodiments, when the load of answering priority treatment was latent heat load, the change that control part 2 makes the change control that utilizes interval switching time at intermittence carry out the latent heat load treating capacity had precedence over the volume controlled of utilizing frequency-changeable compressor 7 and carries out the change of latent heat load treating capacity.
Also can consider to replace this ability control, when the load of answering priority treatment was latent heat load, the change that makes the volume controlled of utilizing frequency-changeable compressor 7 carry out the latent heat load treating capacity had precedence over and utilizes the switching time at intermittence of change control at interval to carry out the change of latent heat load treating capacity.At this, when the priority treatment latent heat load, the volume controlled of at first carrying out frequency-changeable compressor 7 changes the treating capacity of latent heat load, when still not enough, carries out that intermittently switching time, change control at interval further changed the treating capacity of latent heat load.If carry out the control of this ability owing at first carry out the volume controlled of frequency-changeable compressor 7, so the variation of latent heat load treating capacity can realize faster, can reach the processing of required latent heat load fast.
(8)
In the above-described embodiments, when the load of answering priority treatment was sensible heat load, the change that control part 2 makes the change control that utilizes interval switching time at intermittence carry out the sensible heat load treating capacity had precedence over the volume controlled of utilizing frequency-changeable compressor 7 and carries out the change of sensible heat load treating capacity.
Also can consider to replace this ability control, when the load of answering priority treatment was sensible heat load, the change that makes the volume controlled of utilizing frequency-changeable compressor 7 carry out the sensible heat load treating capacity had precedence over and utilizes the switching time at intermittence of change control at interval to carry out the change of sensible heat load treating capacity.At this, when the priority treatment sensible heat load, the volume controlled of at first carrying out frequency-changeable compressor 7 changes the treating capacity of sensible heat load, when still not enough, carries out that intermittently switching time, change control at interval further changed the treating capacity of sensible heat load.If carry out the control of this ability owing at first carry out the volume controlled of frequency-changeable compressor 7, so the variation of sensible heat load treating capacity can realize faster, can reach the processing of required sensible heat load fast.
(9)
In the above-described embodiments, when the load of answering priority treatment is total heat load, at first by the switching time at intermittence of control at interval with the ratio of latent heat load treating capacity and sensible heat load treating capacity, be sensible heat latent heat treating capacity than fixing, carry out the volume controlled of frequency-changeable compressor 7 then.
Also can consider to replace this ability control, when the load of answering priority treatment is total heat load, at first carry out the volume controlled of frequency-changeable compressor 7.
Because can make the total heat load increase and decrease effectively, so, must the priority treatment total heat load time, before the control of carrying out interval switching time intermittently, at first carry out the volume controlled of frequency-changeable compressor 7 at this by the capacity that changes frequency-changeable compressor 7.Thus, the treating capacity of total heat load can be promptly increased and decreased, the variation of total heat load can be tackled fast.
Utilizability on the industry:
Adopt the present invention, in the air conditioner of the absorption action of carrying out adsorbent and the switching that regeneration is moved, advance The volume controlled of row compressor and switching time the interval change control, with to total heat load, latent heat load and Given load in the sensible heat load is carried out priority treatment. Therefore, this air conditioner can easily carry out suitable energy Useful the power control, the latent heat load in process chamber and the air conditioner of sensible heat load.

Claims (20)

1, a kind of air conditioner (10,110,210,220) utilizes the steam compression type refrigerating circulation with compressor (7,101,221) that indoor latent heat load and sensible heat load are handled, and it is characterized in that, comprising:
Heat exchanger (3,5,105,213,214,224);
Adsorbent, adsorb action and regeneration action, in the absorption action, described adsorbents adsorb is by the airborne moisture that passes through of the described heat exchanger heat absorption that plays a role as evaporimeter, in the regeneration action, described adsorbent makes moisture discharge to the air that passes through by the described heat exchanger heats that plays a role as condenser; And
Control part (2) is controlled the described absorption action that makes described adsorbent and described regeneration action switching at interval the switching time of stipulating,
Described control part carries out the volume controlled and described switching time of the change control at interval of described compressor for the given load in priority treatment total heat load, described latent heat load and the described sensible heat load, wherein total heat load is described latent heat load and described sensible heat load sum.
2, air conditioner as claimed in claim 1 is characterized in that, also comprises the input part (2a) of selecting described given load for the user.
3, air conditioner as claimed in claim 1, it is characterized in that, described control part is obtained the poor of the current ability of handling described total heat load and described total heat load size, promptly first difference, the current ability of handling described latent heat load and described latent heat load size is poor, i.e. second difference and handle the current ability of described sensible heat load and described sensible heat load size poor, promptly the 3rd difference is determined described given load according to described first difference, described second difference and described the 3rd difference.
4, as each described air conditioner in the claim 1 to 3, it is characterized in that, when described control part was described latent heat load in described given load, the change that makes the volume controlled of utilizing described compressor carry out the treating capacity of described latent heat load had precedence over and utilizes described switching time of change control at interval to carry out the change of the treating capacity of described latent heat load.
5, as each described air conditioner in the claim 1 to 3, it is characterized in that, when described control part is described latent heat load in described given load, makes the change that utilizes described switching time of change control at interval to carry out the treating capacity of described latent heat load have precedence over the volume controlled of utilizing described compressor and carry out the change of the treating capacity of described latent heat load.
6, as each described air conditioner in the claim 1 to 3, it is characterized in that, when described control part was described sensible heat load in described given load, the change that makes the volume controlled of utilizing described compressor carry out the treating capacity of described sensible heat load had precedence over and utilizes described switching time of change control at interval to carry out the change of the treating capacity of described sensible heat load.
7, as each described air conditioner in the claim 1 to 3, it is characterized in that, when described control part is described sensible heat load in described given load, makes the change that utilizes described switching time of change control at interval to carry out the treating capacity of described sensible heat load have precedence over the volume controlled of utilizing described compressor and carry out the change of the treating capacity of described sensible heat load.
8, as each described air conditioner in the claim 1 to 3, it is characterized in that, when described control part is described total heat load in described given load, at first carry out the volume controlled of described compressor.
9, as each described air conditioner in the claim 1 to 3, it is characterized in that, when described control part is described total heat load in described given load, at first the described latent heat load treating capacity and the ratio of described sensible heat load treating capacity are fixed, carried out the volume controlled of described compressor then by described switching time of control at interval.
10, as each described air conditioner (10,210) in the claim 1 to 3, it is characterized in that having first adsorption heat exchanger (3,213) and second adsorption heat exchanger (5,214) that the surface is provided with described adsorbent as described heat exchanger,
Described control part is switching between following two states: the described absorption action of described adsorbent that will be by described first adsorption heat exchanger or the air behind described regeneration action dehumidifying or the humidification to the described absorption action of first state of described indoor supply and described adsorbent that will be by described second adsorption heat exchanger described regeneration action dehumidifies or humidification after air to second state of described indoor supply.
11, as each described air conditioner (210) in the claim 1 to 3, it is characterized in that, described heat exchanger be used as utilize side heat exchanger (213,214),
Described air conditioner (210) also has heat source side heat exchanger (211).
12, as each described air conditioner in the claim 1 to 3, it is characterized in that described control part carries out the volume controlled and described switching time of the change control at interval of described compressor according in the pressure of the temperature of the pressure of the temperature of described evaporimeter, described evaporimeter, described condenser and described condenser at least one.
13, a kind of control method of air conditioner, this air conditioner (10,110,210,220) utilization has compressor (7,101,221) and heat exchanger (3,5,105,213,214,224) steam compression type refrigerating circulation, use a kind of absorption action of passing through airborne moisture of adsorbing by the described heat exchanger heat absorption that plays a role as evaporimeter, and with moisture to adsorbent by the regeneration of passing through to break away from the air of the described heat exchanger heats that plays a role as condenser action, indoor latent heat load and sensible heat load are handled, this control method is characterised in that
Control the described absorption action that makes described adsorbent and described regeneration action switching at interval the switching time of stipulating,
Carry out the volume controlled and described switching time of the change control at interval of described compressor as the given load in the total heat load of described latent heat load and described sensible heat load sum, described latent heat load and the described sensible heat load for priority treatment.
14, a kind of air conditioner (10,110,210,220) utilizes the steam compression type refrigerating circulation with compressor (7,101,221) that indoor latent heat load and sensible heat load are handled, and it is characterized in that, comprising:
Heat exchanger (3,5,105,213,214,224);
Adsorbent, adsorb action and regeneration action, in the absorption action, described adsorbents adsorb is by the airborne moisture that passes through of the described heat exchanger heat absorption that plays a role as evaporimeter, in the regeneration action, described adsorbent makes moisture discharge to the air that passes through by the described heat exchanger heats that plays a role as condenser; And
Control part (2) is controlled the described absorption action that makes described adsorbent and described regeneration action switching at interval the switching time of stipulating,
Described control part (2) carries out the volume controlled and/or described switching time of the change control at interval of described compressor (7,101,221) according in the pressure of the temperature of the pressure of the temperature of described evaporimeter, described evaporimeter, described condenser and described condenser at least one.
15, air conditioner as claimed in claim 14 (10,210,220) is characterized in that, described heat exchanger (3,5,213,214,224) is the adsorption heat exchanger that surface bears has described adsorbent.
16, air conditioner as claimed in claim 14 (210,220) is characterized in that, described heat exchanger (213,214,224) is used as utilizes the side heat exchanger,
Described air conditioner (210,220) also has heat source side heat exchanger (211,222).
17, air conditioner as claimed in claim 14 (10,110,210,220) is characterized in that, described control part (2) also carries out the volume controlled and/or described switching time of the change control at interval of described compressor according to indoor air humidity value.
18, air conditioner as claimed in claim 14 (10,110,210,220), it is characterized in that described control part (2) is also according to volume controlled from described heat exchanger to the humidity value of indoor leaked-in air and/or described switching time of the change control at interval of carrying out described compressor from.
19, air conditioner as claimed in claim 14 (10,110,210,220), it is characterized in that described control part (2) is also according to volume controlled from described heat exchanger to the temperature value of indoor leaked-in air and/or described switching time of the change control at interval of carrying out described compressor from.
20, a kind of air conditioner (10,110,210,220) control method, this air conditioner (10,110,210,220) utilization has compressor (7,101,221) and heat exchanger (3,5,105,213,214,224) steam compression type refrigerating circulation, use a kind of absorption action of passing through airborne moisture of adsorbing by the described heat exchanger heat absorption that plays a role as evaporimeter, and with moisture to adsorbent by the regeneration of passing through to break away from the air of the described heat exchanger heats that plays a role as condenser action, indoor latent heat load and sensible heat load are handled, this control method is characterised in that
Control the described absorption action that makes described adsorbent and described regeneration action switching at interval the switching time of stipulating,
Carry out the volume controlled and/or described switching time of the change control at interval of described compressor according in the pressure of the temperature of the pressure of the temperature of described evaporimeter, described evaporimeter, described condenser and described condenser at least one.
CN 200580007743 2004-03-31 2005-03-25 Air conditioner and its control method Expired - Fee Related CN100507389C (en)

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