CN105222240A - Airhandling equipment and control method - Google Patents

Airhandling equipment and control method Download PDF

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Publication number
CN105222240A
CN105222240A CN201510563929.XA CN201510563929A CN105222240A CN 105222240 A CN105222240 A CN 105222240A CN 201510563929 A CN201510563929 A CN 201510563929A CN 105222240 A CN105222240 A CN 105222240A
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CN
China
Prior art keywords
air
bulb temperature
conditioner unit
air conditioner
evaporimeter
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Pending
Application number
CN201510563929.XA
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Chinese (zh)
Inventor
刘雄
俞越
杨艳芳
刘珂
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to CN201510563929.XA priority Critical patent/CN105222240A/en
Publication of CN105222240A publication Critical patent/CN105222240A/en
Priority to CN201620900263.2U priority patent/CN205957353U/en
Priority to CN201610646748.8A priority patent/CN106288045A/en
Pending legal-status Critical Current

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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
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses a kind of airhandling equipment and control method, comprise the first refrigerating circuit, the second refrigerating circuit and air conditioner unit first refrigerating circuit and be made up of the first compressing mechanism, First Heat Exchanger, first throttle mechanism, the first evaporimeter; Second refrigerating circuit is made up of the second compressing mechanism, the second heat exchanger, second throttle body, the second evaporimeter; The air blender of air conditioner unit is connected with the new wind passage of air conditioner unit, return air channel, air-supply passage respectively; First evaporimeter is arranged in the new wind passage of air conditioner unit, and the second evaporimeter is arranged in the return air channel of air conditioner unit.When summer operation, there is the two evaporating temperature of high and low temperature, according to the temperature and humidity needs of processed air, new wind and return air can be processed respectively, then mix, realize controlling while processed air themperature and humidity.

Description

Airhandling equipment and control method
Technical field
The present invention relates to a kind of airhandling equipment and control method, belong to air-conditioning technical field.
Background technology
Along with expanding economy, civilian with in industrial building, all-air air conditioning system obtains a large amount of uses, and current all-air air conditioning system generally adopts primary retirn air and secondary return air two kinds of air-treatment methods.Primary-air recirculating system is in order to control the temperature and humidity of processed air, and when processing air, new wind and return air can first mix, reprocessing to air dew point, then reheating, therefore there is cancelling out each other of cold and hot amount in air handling process, not energy-conservation.During secondary return air system work, first return air is divided into two parts, after first part return air mixes with new wind, process is to air dew point, and then mix with the second part return air, therefore there is not cancelling out each other of cold and hot amount in air handling process, more energy-conservation relative to primary-air recirculating system.But the air handling scheme of secondary return air system is complicated, brings inconvenience to operational management.Particularly when the humidity load of indoor changes, when resh air requirement is constant, the air dew point required can change, therefore also can require to change for the air quantity of the second part return air regenerated thereupon, need to use air-valve to regulate the air quantity of the second part return air, cause system cloud gray model complex management on the one hand, when using the air quantity of air-valve adjustment second part return air on the other hand, change the pepeline characteristic coefficient of air return system, return air total amount must be made to change, therefore new wind ratio also can change a lot, unstable.
Summary of the invention
The object of this invention is to provide a kind ofly does not have cancelling out each other of hot and cold amount in air handling process, there is the two evaporating temperature of high and low temperature, can according to the temperature and humidity needs of processed air, process new wind and return air respectively, mixing realizes controlling while processed air themperature and humidity again, and the stable airhandling equipment of new wind ratio and control method.
In order to overcome above-mentioned technology Problems existing, the technical scheme of technical solution problem of the present invention is:
1, a kind of airhandling equipment, comprise air conditioner unit (100), described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively; It is characterized in that: this airhandling equipment also comprises the first refrigerating circuit, the second refrigerating circuit; Described first refrigerating circuit is linked in sequence is formed by the first compressing mechanism (1), First Heat Exchanger (3), first throttle mechanism (5), the first evaporimeter (7); Described second refrigerating circuit is linked in sequence is formed by the second compressing mechanism (2), the second heat exchanger (4), second throttle body (6), the second evaporimeter (8); Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100).
A change programme of such scheme is: a precooling evaporator (15) is arranged at the weather side of the first evaporimeter (7) in new wind passage (11), described precooling evaporator (15) port of export is connected with the pipeline between the second compressing mechanism (2) and the second evaporimeter (8), and described precooling evaporator (15) arrival end is connected with the pipeline between the second heat exchanger (4) and second throttle body (6) by the 3rd throttle mechanism (16).
2, a kind of airhandling equipment, comprise air conditioner unit (100), described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13), described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively, it is characterized in that: this airhandling equipment also comprises the first compressing mechanism (1), condenser (9), first throttle mechanism (5), the first evaporimeter (7), second compressing mechanism (2), second throttle body (6), second evaporimeter (8), described first compressing mechanism (1) port of export is successively through the second compressing mechanism (2) port of export, second compressing mechanism (2) arrival end, second evaporimeter (8) port of export, second evaporimeter (8) arrival end, second throttle body (6), first throttle mechanism (5), first evaporimeter (7) arrival end, first evaporimeter (7) port of export, be connected with described first compressing mechanism (1) arrival end, described condenser (9) arrival end is connected with the pipeline between the first compressing mechanism (1) port of export and the second compressing mechanism (2) port of export, described condenser (9) port of export is connected with the pipeline between described second throttle body (6) and first throttle mechanism (5), described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100).
A change programme of such scheme is: a precooling evaporator (15) is arranged at the weather side of the first evaporimeter (7) in new wind passage (11), described precooling evaporator (15) port of export is connected with the pipeline between the second compressing mechanism (2) arrival end and the second evaporimeter (8) port of export, and described precooling evaporator (15) arrival end is connected with the pipeline of the pipeline between described first throttle mechanism (5) and second throttle body (6) or condenser (9) port of export by the 3rd throttle mechanism (16).
3, a control method for airhandling equipment, described airhandling equipment comprises the first refrigerating circuit, the second refrigerating circuit, air conditioner unit (100); Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively; Described first refrigerating circuit is linked in sequence is formed by the first compressing mechanism (1), First Heat Exchanger (3), first throttle mechanism (5), the first evaporimeter (7); Described second refrigerating circuit is linked in sequence is formed by the second compressing mechanism (2), the second heat exchanger (4), second throttle body (6), the second evaporimeter (8); Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by the method for adjustment second compressing mechanism (2) operating frequency; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that the second sensor (32) detects, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism (1) operating frequency; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
4, a control method for airhandling equipment, described airhandling equipment comprises the first refrigerating circuit, the second refrigerating circuit, air conditioner unit (100); Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively; Described first refrigerating circuit is linked in sequence is formed by the first compressing mechanism (1), First Heat Exchanger (3), first throttle mechanism (5), the first evaporimeter (7); Described second refrigerating circuit is linked in sequence is formed by the second compressing mechanism (2), the second heat exchanger (4), second throttle body (6), the second evaporimeter (8); Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that described first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body (6) aperture; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that described second sensor (32) is detected, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism (1) operating frequency; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
5, a control method for airhandling equipment, described airhandling equipment comprises the first refrigerating circuit, the second refrigerating circuit, air conditioner unit (100); Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively; Described first refrigerating circuit is linked in sequence is formed by the first compressing mechanism (1), First Heat Exchanger (3), first throttle mechanism (5), the first evaporimeter (7); Described second refrigerating circuit is linked in sequence is formed by the second compressing mechanism (2), the second heat exchanger (4), second throttle body (6), the second evaporimeter (8); Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body (6) aperture; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that the second sensor (32) detects, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by regulating the method for first throttle mechanism (5) aperture; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
6, a control method for airhandling equipment, described airhandling equipment comprises the first compressing mechanism (1), condenser (9), first throttle mechanism (5), the first evaporimeter (7); Second compressing mechanism (2), second throttle body (6), the second evaporimeter (8) and air conditioner unit (100);
Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively;
Described first compressing mechanism (1) port of export is successively through the second compressing mechanism (2) port of export, second compressing mechanism (2) arrival end, second evaporimeter (8) port of export, second evaporimeter (8) arrival end, second throttle body (6), first throttle mechanism (5), first evaporimeter (7) arrival end, first evaporimeter (7) port of export, be connected with described first compressing mechanism (1) arrival end, described condenser (9) arrival end is connected with the pipeline between the first compressing mechanism (1) port of export and the second compressing mechanism (2) port of export, described condenser (9) port of export is connected with the pipeline between described second throttle body (6) and first throttle mechanism (5),
Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by the method for adjustment second compressing mechanism (2) operating frequency; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that the second sensor (32) detects, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism (1) operating frequency; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
7, a control method for airhandling equipment, described airhandling equipment comprises the first compressing mechanism (1), condenser (9), first throttle mechanism (5), the first evaporimeter (7); Second compressing mechanism (2), second throttle body (6), the second evaporimeter (8) and air conditioner unit (100);
Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively;
Described first compressing mechanism (1) port of export is successively through the second compressing mechanism (2) port of export, second compressing mechanism (2) arrival end, second evaporimeter (8) port of export, second evaporimeter (8) arrival end, second throttle body (6), first throttle mechanism (5), first evaporimeter (7) arrival end, first evaporimeter (7) port of export, be connected with described first compressing mechanism (1) arrival end, described condenser (9) arrival end is connected with the pipeline between the first compressing mechanism (1) port of export and the second compressing mechanism (2) port of export, described condenser (9) port of export is connected with the pipeline between described second throttle body (6) and first throttle mechanism (5),
Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that described first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body (6) aperture; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that described second sensor (32) is detected, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism (1) operating frequency; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
8, a control method for airhandling equipment, described airhandling equipment comprises the first compressing mechanism (1), condenser (9), first throttle mechanism (5), the first evaporimeter (7); Second compressing mechanism (2), second throttle body (6), the second evaporimeter (8) and air conditioner unit (100);
Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively;
Described first compressing mechanism (1) port of export is successively through the second compressing mechanism (2) port of export, second compressing mechanism (2) arrival end, second evaporimeter (8) port of export, second evaporimeter (8) arrival end, second throttle body (6), first throttle mechanism (5), first evaporimeter (7) arrival end, first evaporimeter (7) port of export, be connected with described first compressing mechanism (1) arrival end, described condenser (9) arrival end is connected with the pipeline between the first compressing mechanism (1) port of export and the second compressing mechanism (2) port of export, described condenser (9) port of export is connected with the pipeline between described second throttle body (6) and first throttle mechanism (5),
Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body (6) aperture; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that the second sensor (32) detects, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by regulating the method for first throttle mechanism (5) aperture; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
Compared with prior art, its beneficial effect is in the present invention:
1. when summer operation, there is the two evaporating temperature of high and low temperature, according to the temperature and humidity needs of processed air, new wind and return air can be processed respectively, and can realize controlling while processed air themperature and humidity;
2., in air handling process, eliminate the cold and hot amount cancellation problem of primary-air recirculating system, more energy-conservation;
3. compared with secondary return air system, the flow process of air system is simple, and can ensure that new wind ratio is stablized;
4. the present invention is applicable to industry and civilian airhandling equipment, is specially adapted to the occasion simultaneously humiture being had to requirement.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the embodiment of the present invention 2 structural representation;
Fig. 3 is the embodiment of the present invention 3 structural representation;
Fig. 4 is the embodiment of the present invention 4 structural representation;
Fig. 5 is the embodiment of the present invention 5 structural representation;
Fig. 6 is the embodiment of the present invention 6 structural representation.
Detailed description of the invention
Below in conjunction with accompanying drawing, content of the present invention is described in further detail.
Embodiment 1
As shown in Figure 1, the present embodiment is the temperature and humidity needs of a kind of energy according to processed air, process new wind and return air respectively, make new wind and return air mixing again, realize controlling while processed air themperature and humidity, and the airhandling equipment that new wind ratio is stable, for there being the occasion of requirement to humiture simultaneously.Whole equipment comprises following part: the first refrigerating circuit, the second refrigerating circuit, air conditioner unit 100.
Air conditioner unit 100 is made up of air blender 10, new wind passage 11, return air channel 12, air-supply passage 13; This air blender 10 is connected with the new wind passage 11 of air conditioner unit 100, return air channel 12, air-supply passage 13 respectively;
First refrigerating circuit is linked in sequence is formed by the first compressing mechanism 1, First Heat Exchanger 3, first throttle mechanism 5, first evaporimeter 7; Second refrigerating circuit is linked in sequence is formed by the second compressing mechanism 2, second heat exchanger 4, second throttle body 6, second evaporimeter 8;
First evaporimeter 7 is arranged in the new wind passage 11 of air conditioner unit 100, and the second evaporimeter 8 is arranged in the return air channel 12 of air conditioner unit 100.
As shown in Figure 1, first sensor 31 is arranged at air conditioner unit 100 air-supply passage 13 port of export, the actual dry-bulb temperature of the air for detecting air conditioner unit 100; Second sensor 32 is also arranged at air conditioner unit 100 air-supply passage 13 port of export, the actual wet-bulb temperature of the air for detecting air conditioner unit 100.
In the course of work, for the first refrigerating circuit, First Heat Exchanger 3 is for distributing the first refrigerating circuit to environment because freeze the condensation heat produced, and the first evaporimeter 7 works at low-temperature evaporation temperature, in new wind passage 11, to flowing into the new air cooling dehumidifying of air blender 10; First throttle mechanism 5 adopts electric expansion valve usually, carries out throttling to the refrigerant liquid from First Heat Exchanger 3; First compressing mechanism 1 adopts frequency-changeable compressor usually, by changing the method for compressor electric motor frequency, the actual wet-bulb temperature of the air of air conditioner unit 100 is controlled, in the present embodiment, the actual wet-bulb temperature of the air of air conditioner unit 100 refers to the actual wet-bulb temperature of air of air-supply passage 13 port of export; Concrete control method is as follows:
The actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects, be fed to controller 50, in the controller 50, compare with the air ' s wet bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for change first compressing mechanism 1 operating frequency; The actual wet-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
In the course of work, for the second refrigerating circuit, second heat exchanger 4 is for distributing the second refrigerating circuit because of the condensation heat produced of freezing to environment, second evaporimeter 8 works at high temperature evaporation temperature, in return air channel 12, cool by the return air flowing into air blender 10, sensible heat in decontamination chamber; Second throttle body 6 adopts electric expansion valve usually, carries out throttling to the refrigerant liquid from the second heat exchanger 4; Second compressing mechanism 2 adopts frequency-changeable compressor usually, by changing the method for compressor electric motor frequency, the actual dry-bulb temperature of the air of air conditioner unit 100 is controlled, in the present embodiment, the actual dry-bulb temperature of the air of air conditioner unit 100 refers to the actual dry-bulb temperature of air of air-supply passage 13 port of export; Concrete control method is as follows:
During work, the actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects, be fed to controller 50, in the controller 50, compare with the air dry-bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by the method for change second compressing mechanism 2 operating frequency; The actual dry-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band.
Above-mentioned air dry bulb and the essence of wet-bulb temperature control method are: the first compressing mechanism 1 is by changing the method for operating frequency, the refrigerating capacity that first evaporimeter 7 exports is regulated, thus realizes the control to the actual wet-bulb temperature of the air of air conditioner unit 100; Second compressing mechanism 2, by changing the method for operating frequency, regulates the refrigerating capacity that the second evaporimeter 8 exports, thus realizes the control to the actual dry-bulb temperature of the air of air conditioner unit 100.
In the above-mentioned course of work of the present embodiment, the first evaporimeter 7 in the first refrigerating circuit achieves the cooling and dehumidifying to new wind in new wind passage 11, bears the humidity load of air-conditioning system; The second evaporimeter 8 in second refrigerating circuit achieves the cooling to return air in return air channel 12; These new wind be separately processed and return air, respectively by new wind passage 11 and return air channel 12, after entering air blender 10 mixing, after meeting the requirements of air dry-bulb temperature, air ' s wet bulb temperature, pressurize through blower fan 14, by air-supply passage 13 port of export, be fed to user.
Therefore, compared with primary retirn air air-conditioning system, there is no reheating, and cold and hot amount cancellation problem brought thus, more energy-conservation.Compared with air conditioning system with secondary return air, do not need to regulate the allocation proportion of return air to meet heat request again, so wind system of the present invention is simple, new wind ratio is stablized.
In scheme shown in the present embodiment Fig. 1, first sensor 31, second sensor 32 is the ports of export being arranged at air-supply passage 13, but when practical application, first sensor 31, second sensor 32, in air conditioner unit 100, also has following three kinds of set-up modes:
1) first sensor 31 is arranged at the port of export of air-supply passage 13, and the second sensor 32 is arranged at the arrival end of return air channel 12.In this fashion, the actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects is exactly the actual wet-bulb temperature of air of return air channel 12 arrival end, is also the actual wet-bulb temperature of air of indoor return air.
2) first sensor 31, second sensor 32 is all arranged at the arrival end of return air channel 12.In this fashion, the actual dry bulb of air of the air conditioner unit 100 that first sensor 31, second sensor 32 detects respectively and wet-bulb temperature are exactly the actual dry bulb of air and the wet-bulb temperature of return air channel 12 arrival end, are also the actual dry bulb of air and the wet-bulb temperature of indoor return air.
3) first sensor 31 is arranged at the arrival end of return air channel 12, and the second sensor 32 is arranged at the port of export of air-supply passage 13.In this fashion, the actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects is exactly the actual dry-bulb temperature of air of return air channel 12 arrival end, is also the actual dry-bulb temperature of air of indoor return air.
In the present embodiment, the four kind set-up modes of first sensor 31, second sensor 32 in air conditioner unit 100 are also applicable to scheme described in other embodiments all of the present invention.
Embodiment 2
As shown in Figure 2, the difference of scheme shown in scheme shown in the present embodiment Fig. 2 and embodiment 1 Fig. 1 is: in scheme shown in Fig. 2, have two groups of air conditioner units 100 at least, serve different construction areas or user respectively; In addition in air handling process, different with the control method of wet-bulb temperature to the air dry bulb of air conditioner unit 100.
In scheme shown in the present embodiment Fig. 2, to the air dry bulb of air conditioner unit 100 and the control method of wet-bulb temperature as follows: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects, be fed to controller 50, in the controller 50, compare with the air dry-bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by changing the method for second throttle body 6 aperture; The actual dry-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band.
The actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects, also controller 50 is fed to, in the controller 50, compare with the air ' s wet bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by changing the method for first throttle mechanism 5 aperture; The actual wet-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
In the process that the actual wet-bulb temperature of air of first throttle mechanism 5 pairs of air conditioner units 100 controls, the first compressing mechanism 1 controls by regulating the refrigerant superheat degree of method to the refrigerant suction pressure of the first compressing mechanism 1 and first evaporimeter 7 port of export of operating frequency.
In the process that the actual dry-bulb temperature of air of second throttle body 6 pairs of air conditioner units 100 controls, the second compressing mechanism 2 controls by regulating the refrigerant superheat degree of method to the refrigerant suction pressure of the second compressing mechanism 2 and second evaporimeter 8 port of export of operating frequency.
During work, first compressing mechanism 1 is as follows by the concrete grammar regulating the refrigerant superheat degree of the method for operating frequency to the refrigerant suction pressure of the first compressing mechanism 1 and first evaporimeter 7 port of export and control: the air ' s wet bulb temperature desired value of all air conditioner units 100 all flows to controller 50, controller 50 finds minimum of a value wherein, a given temperature difference is deducted by this minimum air ' s wet bulb temperature desired value, refrigerant saturation pressure corresponding to the temperature value obtained, just assert it is in the course of work, the refrigerant suction pressure desired value of the first compressing mechanism 1 of start-up phase, during start-up phase work, first compressing mechanism 1 regulates by regulating the actual pressure of inspiration(Pi) of cold-producing medium of method to the first compressing mechanism 1 of operating frequency, make the deviation of the actual pressure of inspiration(Pi) of cold-producing medium of the first compressing mechanism 1 and the refrigerant suction pressure desired value of the first compressing mechanism 1 in allowed band, simultaneously, the refrigerant superheat degree of all air conditioner unit 100 first evaporimeter 7 ports of export all flows to controller 50, after entering normal operating conditions, find minimum of a value wherein by controller 50, the first compressing mechanism 1 makes this minimum superheat value equal the super heat value expected by regulating the method for operating frequency.The given temperature difference is not less than 3.5 DEG C usually.
During work, second compressing mechanism 2 is as follows by the concrete grammar regulating the refrigerant superheat degree of the method for operating frequency to the refrigerant suction pressure of the second compressing mechanism 2 and second evaporimeter 8 port of export and control: the air dry-bulb temperature desired value of all air conditioner units 100 all flows to controller 50, controller 50 finds minimum of a value wherein, a given temperature difference is deducted by this minimum air dry-bulb temperature desired value, refrigerant saturation pressure corresponding to the temperature value obtained, just assert it is in the course of work, the refrigerant suction pressure desired value of the second compressing mechanism 2 of start-up phase, during start-up phase work, second compressing mechanism 2 regulates by regulating the actual pressure of inspiration(Pi) of cold-producing medium of method to the second compressing mechanism 2 of operating frequency, make the deviation of the actual pressure of inspiration(Pi) of cold-producing medium of the second compressing mechanism 2 and the refrigerant suction pressure desired value of the second compressing mechanism 2 in allowed band, simultaneously, the refrigerant superheat degree of all air conditioner unit 100 second evaporimeter 8 ports of export all flows to controller 50, after entering normal operating conditions, find minimum of a value wherein by controller 50, the second compressing mechanism 2 makes this minimum superheat value equal the super heat value expected by regulating the method for operating frequency.The common span of the given temperature difference is: supply air temperature difference ± 3.5 DEG C
Embodiment 3
As shown in Figure 3, shown in scheme shown in the present embodiment Fig. 3 and embodiment 1 Fig. 1, the difference of scheme is: in scheme shown in Fig. 3, add one group of precooling evaporator 15 and the 3rd throttle mechanism 16.Their connected modes in scheme shown in Fig. 3 are: precooling evaporator 15 is arranged at the weather side of the first evaporimeter 7 in new wind passage 11, precooling evaporator 15 port of export is connected with the pipeline between the second compressing mechanism 2 and the second evaporimeter 8, and precooling evaporator 15 arrival end is connected with the pipeline between the second heat exchanger 4 and second throttle body 6 by the 3rd throttle mechanism 16.
In the course of work, precooling evaporator 15 utilizes the cold-producing medium at high temperature evaporation temperature to carry out precooling to new wind, reaches energy-conservation object; 3rd throttle mechanism 16 adopts electric expansion valve usually, for cold-producing medium throttling.
In the process of scheme works shown in Fig. 3, there are two to the air dry bulb of air conditioner unit 100 and the control method of wet-bulb temperature.
Scheme one
The actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects, be fed to controller 50, in the controller 50, compare with the air ' s wet bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for change first compressing mechanism 1 operating frequency; The actual wet-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
The actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects, be fed to controller 50, in the controller 50, compare with the air dry-bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by the method for change second compressing mechanism 2 operating frequency; The actual dry-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band.
3rd throttle mechanism 16 is for controlling the refrigerant superheat degree of precooling evaporator 15 port of export or the second compressing mechanism 2 arrival end.
Scheme two
The actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects, be fed to controller 50, in the controller 50, compare with the air ' s wet bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for change first compressing mechanism 1 operating frequency; The actual wet-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
The actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects, be fed to controller 50, in the controller 50, compare with the air dry-bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body 6 aperture; The actual dry-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band.
3rd throttle mechanism 16 is for controlling the refrigerant superheat degree of precooling evaporator 15 port of export.
Second compressing mechanism 2 controls by regulating the refrigerant superheat degree of method to the refrigerant suction pressure of the second compressing mechanism 2 and second evaporimeter 8 port of export of operating frequency, its concrete grammar is as follows: the air dry-bulb temperature desired value of air conditioner unit 100 flows to controller 50, a given temperature difference is deducted by this air dry-bulb temperature desired value, refrigerant saturation pressure corresponding to the temperature value obtained, just assert it is in the course of work, the refrigerant suction pressure desired value of the second compressing mechanism 2 of start-up phase, during start-up phase work, second compressing mechanism 2 regulates by regulating the actual pressure of inspiration(Pi) of cold-producing medium of method to the second compressing mechanism 2 of operating frequency, make the deviation of the actual pressure of inspiration(Pi) of cold-producing medium of the second compressing mechanism 2 and the refrigerant suction pressure desired value of the second compressing mechanism 2 in allowed band, detect the actual degree of superheat of cold-producing medium of second evaporimeter 8 port of export simultaneously, after entering normal operating conditions, when refrigerant superheat degree desired value more than second evaporimeter 8 port of export of the actual degree of superheat of cold-producing medium of second evaporimeter 8 port of export, then the second compressing mechanism 2 controls by regulating the refrigerant superheat degree of method to second evaporimeter 8 port of export of operating frequency, makes the deviation of the actual degree of superheat of cold-producing medium of second evaporimeter 8 port of export and the refrigerant superheat degree desired value of second evaporimeter 8 port of export in allowed band.The common span of the given temperature difference is: supply air temperature difference ± 3.5 DEG C.
Scheme shown in the present embodiment Fig. 3 is also applicable to scheme shown in embodiment 2 Fig. 2.
Embodiment 4
As shown in Figure 4, the present embodiment is also the temperature and humidity needs of a kind of energy according to processed air, process new wind and return air respectively, make new wind and return air mixing again, realize controlling while processed air themperature and humidity, and the airhandling equipment that new wind ratio is stable, for there being the occasion of requirement to humiture simultaneously.
Whole equipment comprises following part: refrigeration system and air conditioner unit 100.
Air conditioner unit 100 is made up of air blender 10, new wind passage 11, return air channel 12, air-supply passage 13; Air blender 10 is connected with the new wind passage 11 of air conditioner unit 100, return air channel 12, air-supply passage 13 respectively.
Refrigeration system is by the first compressing mechanism 1, condenser 9, first throttle mechanism 5, first evaporimeter 7; Second compressing mechanism 2, second throttle body 6, second evaporimeter 8 form.
The connected mode of refrigeration system is: first compressing mechanism 1 port of export is successively through second compressing mechanism 2 port of export, second compressing mechanism 2 arrival end, second evaporimeter 8 port of export, second evaporimeter 8 arrival end, second throttle body 6, first throttle mechanism 5, first evaporimeter 7 arrival end, first evaporimeter 7 port of export, be connected with the first compressing mechanism 1 arrival end, condenser 9 arrival end is connected with the pipeline between first compressing mechanism 1 port of export and second compressing mechanism 2 port of export, condenser 9 port of export is connected with the pipeline between second throttle body 6 and first throttle mechanism 5.
First evaporimeter 7 is arranged in the new wind passage 11 of air conditioner unit 100, and the second evaporimeter 8 is arranged in the return air channel 12 of air conditioner unit 100.
As shown in Figure 4, first sensor 31 is arranged at air conditioner unit 100 return air channel 12 arrival end, the actual dry-bulb temperature of the air for detecting air conditioner unit 100; Second sensor 32 is also arranged at air conditioner unit 100 wind passage 12 arrival end, the actual wet-bulb temperature of the air for detecting air conditioner unit 100.
In the course of work, condenser 9 is for distributing refrigeration system because of the condensation heat produced of freezing to environment; First evaporimeter 7 works at low-temperature evaporation temperature, in new wind passage 11, to flowing into the new air cooling dehumidifying of air blender 10, bears the humidity load of air-conditioning system; First throttle mechanism 5 adopts electric expansion valve usually, carries out throttling to the refrigerant liquid carrying out condenser 9, makes refrigerant liquid throttling become the refrigerant air-liquid two-phase mixture of low-temp low-pressure; Second evaporimeter 8 works at high temperature evaporation temperature, in return air channel 12, cools by the return air flowing into air blender 10; Second throttle body 6 adopts electric expansion valve usually, carries out throttling to the refrigerant liquid carrying out condenser 9, makes refrigerant liquid throttling become the refrigerant air-liquid two-phase mixture of medium temperature and medium pressure.
First compressing mechanism 1 adopts frequency-changeable compressor usually, by changing the method for compressor electric motor frequency, the actual wet-bulb temperature of the air of air conditioner unit 100 is controlled, in the present embodiment, the actual wet-bulb temperature of air of air conditioner unit 100 refers to the actual wet-bulb temperature of air of return air channel 12 arrival end, and concrete control method is as follows:
The actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects, be fed to controller 50, in the controller 50, compare with the air ' s wet bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism 1 operating frequency; The actual wet-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
Second compressing mechanism 2 adopts frequency-changeable compressor usually, by changing the method for compressor electric motor frequency, the actual dry-bulb temperature of the air of air conditioner unit 100 is controlled, in the present embodiment, the actual dry-bulb temperature of the air of air conditioner unit 100 refers to the actual dry-bulb temperature of air of return air channel 12 arrival end; Concrete control method is as follows:
During work, the actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects, be fed to controller 50, in the controller 50, compare with the air dry-bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by the method for adjustment second compressing mechanism 2 operating frequency; The actual dry-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band.
Above-mentioned air dry bulb and the essence of wet-bulb temperature control method are: the first compressing mechanism 1 is by changing the method for operating frequency, the refrigerating capacity that first evaporimeter 7 exports is regulated, thus realizes the control to the actual wet-bulb temperature of the air of air conditioner unit 100; Second compressing mechanism 2, by changing the method for operating frequency, regulates the refrigerating capacity that the second evaporimeter 8 exports, thus realizes the control to the actual dry-bulb temperature of the air of air conditioner unit 100.
In the above-mentioned course of work of the present embodiment, the first evaporimeter 7 achieves the cooling and dehumidifying to new wind in new wind passage 11; Second evaporimeter 8 achieves the cooling to return air in return air channel 12; These new wind be separately processed and return air, respectively by new wind passage 11 and return air channel 12, after entering air blender 10 mixing, after meeting the requirements of air dry-bulb temperature, air ' s wet bulb temperature, pressurize through blower fan 14, by air-supply passage 13 port of export, be fed to user.
Therefore, compared with primary retirn air air-conditioning system, there is no reheating, and cold and hot amount cancellation problem brought thus, more energy-conservation.Compared with air conditioning system with secondary return air, do not need to regulate the allocation proportion of return air to meet heat request again, so wind system of the present invention is simple, new wind ratio is stablized.
The workflow of refrigerant system when airhandling equipment works of scheme shown in Fig. 4 is as follows: refrigerant liquid is divided into two-way after discharging from condenser 9 port of export; The first via through first throttle mechanism 5, first evaporimeter 7 arrival end, first evaporimeter 7 port of export, the first compressing mechanism 1 arrival end, first compressing mechanism 1 port of export, enters condenser 9 arrival end pipeline successively; Second tunnel through second throttle body 6, second evaporimeter 8 arrival end, second evaporimeter 8 port of export, the second compressing mechanism 2 arrival end, second compressing mechanism 2 port of export, also enters condenser 9 arrival end pipeline successively; Two-way, after the mixing of condenser 9 arrival end pipeline, enters condenser 9 and is condensed into refrigerant liquid, thus complete a kind of refrigeration cycle.
Embodiment 5
As shown in Figure 5, the difference of scheme shown in scheme shown in the present embodiment Fig. 5 and embodiment 4 Fig. 4 is: in scheme shown in Fig. 5, have two groups of air conditioner units 100 at least, serve different construction areas or user respectively; In addition in air handling process, different with the control method of wet-bulb temperature to the air dry bulb of air conditioner unit 100.
In scheme shown in the present embodiment Fig. 5, to the air dry bulb of air conditioner unit 100 and the control method of wet-bulb temperature as follows: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects, be fed to controller 50, in the controller 50, compare with the air dry-bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body 6 aperture; The actual dry-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band.
The actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects, also controller 50 is fed to, in the controller 50, compare with the air ' s wet bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by regulating the method for first throttle mechanism 5 aperture; The actual wet-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
In the process that the actual wet-bulb temperature of air of first throttle mechanism 5 pairs of air conditioner units 100 controls, the first compressing mechanism 1 controls by regulating the refrigerant superheat degree of method to the refrigerant suction pressure of the first compressing mechanism 1 and first evaporimeter 7 port of export of operating frequency.
In the process that the actual dry-bulb temperature of air of second throttle body 6 pairs of air conditioner units 100 controls, the second compressing mechanism 2 controls by regulating the refrigerant superheat degree of method to the refrigerant suction pressure of the second compressing mechanism 2 and first evaporimeter 7 port of export of operating frequency.
During work, first compressing mechanism 1 is as follows by the concrete grammar regulating the refrigerant superheat degree of the method for operating frequency to the refrigerant suction pressure of the first compressing mechanism 1 and first evaporimeter 7 port of export and control: during work, the air ' s wet bulb temperature desired value of all air conditioner units 100 all flows to controller 50, controller 50 finds minimum of a value wherein, a given temperature difference is deducted by this minimum air ' s wet bulb temperature desired value, refrigerant saturation pressure corresponding to the temperature value obtained, just assert it is in the course of work, the refrigerant suction pressure desired value of the first compressing mechanism 1 of start-up phase, during start-up phase work, first compressing mechanism 1 regulates by regulating the actual pressure of inspiration(Pi) of cold-producing medium of method to the first compressing mechanism 1 of operating frequency, make the deviation of the actual pressure of inspiration(Pi) of cold-producing medium of the first compressing mechanism 1 and the refrigerant suction pressure desired value of the first compressing mechanism 1 in allowed band, simultaneously, the refrigerant superheat degree of all air conditioner unit 100 first evaporimeter 7 ports of export all flows to controller 50, after entering normal operating conditions, find minimum of a value wherein by controller 50, the first compressing mechanism 1 makes this minimum superheat value be the super heat value expected by regulating the method for operating frequency.The given temperature difference is not less than 3.5 DEG C usually.
During work, second compressing mechanism 2 is as follows by the concrete grammar regulating the refrigerant superheat degree of the method for operating frequency to the refrigerant suction pressure of the second compressing mechanism 2 and second evaporimeter 8 port of export and control: during work, the air dry-bulb temperature desired value of all air conditioner units 100 all flows to controller 50, controller 50 finds minimum of a value wherein, a given temperature difference is deducted by this minimum air dry-bulb temperature desired value, refrigerant saturation pressure corresponding to the temperature value obtained, just assert it is in the course of work, the refrigerant suction pressure desired value of the second compressing mechanism 2 of start-up phase, during start-up phase work, second compressing mechanism 2 regulates by regulating the actual pressure of inspiration(Pi) of cold-producing medium of method to the second compressing mechanism 2 of operating frequency, make the deviation of the actual pressure of inspiration(Pi) of cold-producing medium of the second compressing mechanism 2 and the refrigerant suction pressure desired value of the second compressing mechanism 2 in allowed band, simultaneously, the refrigerant superheat degree of all air conditioner unit 100 second evaporimeter 8 ports of export all flows to controller 50, after entering normal operating conditions, find minimum of a value wherein by controller 50, the second compressing mechanism 2 makes this minimum superheat value be the super heat value expected by regulating the method for operating frequency.The common span of the given temperature difference is: supply air temperature difference ± 3.5 DEG C.
Embodiment 6
As shown in Figure 6, shown in scheme shown in the present embodiment Fig. 6 and embodiment 4 Fig. 4, the difference of scheme is: in scheme shown in Fig. 6, add one group of precooling evaporator 15 and the 3rd throttle mechanism 16.Their connected modes in scheme shown in Fig. 6 are: precooling evaporator 15 is arranged at the weather side of the first evaporimeter 7 in new wind passage 11, precooling evaporator 15 port of export is connected with the pipeline between the second compressing mechanism 2 arrival end and second evaporimeter 8 port of export, and precooling evaporator 15 arrival end is connected with the pipeline of the pipeline between first throttle mechanism 5 and second throttle body 6 or condenser 9 port of export by the 3rd throttle mechanism 16.
In the course of work, precooling evaporator 15 utilizes the cold-producing medium at high temperature evaporation temperature to carry out precooling to new wind, reaches energy-conservation object; 3rd throttle mechanism 16 adopts electric expansion valve usually, for cold-producing medium throttling.
In the process of scheme works shown in Fig. 6, there are two to the air dry bulb of air conditioner unit 100 and the control method of wet-bulb temperature.
Scheme one
The actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects, be fed to controller 50, in the controller 50, compare with the air ' s wet bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism 1 operating frequency; The actual wet-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
The actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects, be fed to controller 50, in the controller 50, compare with the air dry-bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by the method for adjustment second compressing mechanism 2 operating frequency; The actual dry-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band.
3rd throttle mechanism 16 is for controlling the refrigerant superheat degree of precooling evaporator 15 port of export or the second compressing mechanism 2 arrival end.
Scheme two
The actual wet-bulb temperature of air of the air conditioner unit 100 that the second sensor 32 detects, be fed to controller 50, in the controller 50, compare with the air ' s wet bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism 1 operating frequency; The actual wet-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
The actual dry-bulb temperature of air of the air conditioner unit 100 that first sensor 31 detects, be fed to controller 50, in the controller 50, compare with the air dry-bulb temperature desired value of the air conditioner unit 100 preset, when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body 6 aperture; The actual dry-bulb temperature of the air of air conditioner unit 100 is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band.
3rd throttle mechanism 16 is for controlling the refrigerant superheat degree of precooling evaporator 15 port of export.
Second compressing mechanism 2 controls by regulating the refrigerant superheat degree of method to the refrigerant suction pressure of the second compressing mechanism 2 and second evaporimeter 8 port of export of operating frequency, its concrete grammar is as follows: the air dry-bulb temperature desired value of air conditioner unit 100 flows to controller 50, a given temperature difference is deducted by this air dry-bulb temperature desired value, refrigerant saturation pressure corresponding to the temperature value obtained, just assert it is in the course of work, the refrigerant suction pressure desired value of the second compressing mechanism 2 of start-up phase, during start-up phase work, second compressing mechanism 2 regulates by regulating the actual pressure of inspiration(Pi) of cold-producing medium of method to the second compressing mechanism 2 of operating frequency, make the deviation of the actual pressure of inspiration(Pi) of cold-producing medium of the second compressing mechanism 2 and the refrigerant suction pressure desired value of the second compressing mechanism 2 in allowed band, detect the actual degree of superheat of cold-producing medium of second evaporimeter 8 port of export simultaneously, after entering normal operating conditions, when refrigerant superheat degree desired value more than second evaporimeter 8 port of export of the actual degree of superheat of cold-producing medium of second evaporimeter 8 port of export, then the second compressing mechanism 2 controls by regulating the refrigerant superheat degree of method to second evaporimeter 8 port of export of operating frequency, makes the deviation of the actual degree of superheat of cold-producing medium of second evaporimeter 8 port of export and the refrigerant superheat degree desired value of second evaporimeter 8 port of export in allowed band.The common span of the given temperature difference is: supply air temperature difference ± 3.5 DEG C.
Scheme shown in the present embodiment Fig. 6 is also applicable to scheme shown in embodiment 5 Fig. 5.
In the scheme of the above-mentioned all embodiments of the present invention, the while of any one or two in first compressing mechanism 1, second compressing mechanism 2, can adopt in following compressor any one: screw compressor, helical-lobe compressor, rolling rotor compressor, sliding-vane compressor, rotary blade type compressor, centrifugal compressor.In the scheme of the above-mentioned all embodiments of the present invention, the compressor bank that the first compressing mechanism 1, second compressing mechanism 2 can also be made up of at least two variable conpacitance compressors.
In the scheme of the above-mentioned all embodiments of the present invention, when any one in First Heat Exchanger 3, second heat exchanger 4, first evaporimeter 7, second evaporimeter 8 or condenser 9 is as refrigerant-air heat exchanger, usual employing finned heat exchanger, the fin of described finned heat exchanger is generally aluminum or aluminum alloy material, and the occasion special at some also uses copper material.
In the scheme of the above-mentioned all embodiments of the present invention, in first throttle mechanism 5, second throttle body 6, the 3rd throttle mechanism 16 one, even all throttle mechanisms can both adopt the throttle mechanism (such as: electric expansion valve) with turn-off function substitute.
In the scheme of the above-mentioned all embodiments of the present invention, described all pipelines are all copper pipes.

Claims (10)

1. an airhandling equipment, comprise air conditioner unit (100), described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively; It is characterized in that: this airhandling equipment also comprises the first refrigerating circuit, the second refrigerating circuit; Described first refrigerating circuit is linked in sequence is formed by the first compressing mechanism (1), First Heat Exchanger (3), first throttle mechanism (5), the first evaporimeter (7); Described second refrigerating circuit is linked in sequence is formed by the second compressing mechanism (2), the second heat exchanger (4), second throttle body (6), the second evaporimeter (8); Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100).
2. airhandling equipment according to claim 1, it is characterized in that a precooling evaporator (15) is arranged at the weather side of the first evaporimeter (7) in new wind passage (11), described precooling evaporator (15) port of export is connected with the pipeline between the second compressing mechanism (2) and the second evaporimeter (8), and described precooling evaporator (15) arrival end is connected with the pipeline between the second heat exchanger (4) and second throttle body (6) by the 3rd throttle mechanism (16).
3. an airhandling equipment, comprise air conditioner unit (100), described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13), described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively, it is characterized in that: this airhandling equipment also comprises the first compressing mechanism (1), condenser (9), first throttle mechanism (5), the first evaporimeter (7), second compressing mechanism (2), second throttle body (6), second evaporimeter (8), described first compressing mechanism (1) port of export is successively through the second compressing mechanism (2) port of export, second compressing mechanism (2) arrival end, second evaporimeter (8) port of export, second evaporimeter (8) arrival end, second throttle body (6), first throttle mechanism (5), first evaporimeter (7) arrival end, first evaporimeter (7) port of export, be connected with described first compressing mechanism (1) arrival end, described condenser (9) arrival end is connected with the pipeline between the first compressing mechanism (1) port of export and the second compressing mechanism (2) port of export, described condenser (9) port of export is connected with the pipeline between described second throttle body (6) and first throttle mechanism (5), described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100).
4. airhandling equipment according to claim 3, it is characterized in that a precooling evaporator (15) is arranged at the weather side of the first evaporimeter (7) in new wind passage (11), described precooling evaporator (15) port of export is connected with the pipeline between the second compressing mechanism (2) arrival end and the second evaporimeter (8) port of export, described precooling evaporator (15) arrival end is connected with the pipeline of the pipeline between described first throttle mechanism (5) and second throttle body (6) or condenser (9) port of export by the 3rd throttle mechanism (16).
5. a control method for airhandling equipment, described airhandling equipment comprises the first refrigerating circuit, the second refrigerating circuit, air conditioner unit (100); Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively; Described first refrigerating circuit is linked in sequence is formed by the first compressing mechanism (1), First Heat Exchanger (3), first throttle mechanism (5), the first evaporimeter (7); Described second refrigerating circuit is linked in sequence is formed by the second compressing mechanism (2), the second heat exchanger (4), second throttle body (6), the second evaporimeter (8); Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by the method for adjustment second compressing mechanism (2) operating frequency; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that the second sensor (32) detects, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism (1) operating frequency; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
6. a control method for airhandling equipment, described airhandling equipment comprises the first refrigerating circuit, the second refrigerating circuit, air conditioner unit (100); Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively; Described first refrigerating circuit is linked in sequence is formed by the first compressing mechanism (1), First Heat Exchanger (3), first throttle mechanism (5), the first evaporimeter (7); Described second refrigerating circuit is linked in sequence is formed by the second compressing mechanism (2), the second heat exchanger (4), second throttle body (6), the second evaporimeter (8); Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that described first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body (6) aperture; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that described second sensor (32) is detected, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism (1) operating frequency; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
7. a control method for airhandling equipment, described airhandling equipment comprises the first refrigerating circuit, the second refrigerating circuit, air conditioner unit (100); Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively; Described first refrigerating circuit is linked in sequence is formed by the first compressing mechanism (1), First Heat Exchanger (3), first throttle mechanism (5), the first evaporimeter (7); Described second refrigerating circuit is linked in sequence is formed by the second compressing mechanism (2), the second heat exchanger (4), second throttle body (6), the second evaporimeter (8); Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body (6) aperture; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that the second sensor (32) detects, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by regulating the method for first throttle mechanism (5) aperture; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
8. a control method for airhandling equipment, described airhandling equipment comprises the first compressing mechanism (1), condenser (9), first throttle mechanism (5), the first evaporimeter (7); Second compressing mechanism (2), second throttle body (6), the second evaporimeter (8) and air conditioner unit (100);
Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively;
Described first compressing mechanism (1) port of export is successively through the second compressing mechanism (2) port of export, second compressing mechanism (2) arrival end, second evaporimeter (8) port of export, second evaporimeter (8) arrival end, second throttle body (6), first throttle mechanism (5), first evaporimeter (7) arrival end, first evaporimeter (7) port of export, be connected with described first compressing mechanism (1) arrival end, described condenser (9) arrival end is connected with the pipeline between the first compressing mechanism (1) port of export and the second compressing mechanism (2) port of export, described condenser (9) port of export is connected with the pipeline between described second throttle body (6) and first throttle mechanism (5),
Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by the method for adjustment second compressing mechanism (2) operating frequency; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that the second sensor (32) detects, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism (1) operating frequency; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
9. a control method for airhandling equipment, described airhandling equipment comprises the first compressing mechanism (1), condenser (9), first throttle mechanism (5), the first evaporimeter (7); Second compressing mechanism (2), second throttle body (6), the second evaporimeter (8) and air conditioner unit (100);
Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively;
Described first compressing mechanism (1) port of export is successively through the second compressing mechanism (2) port of export, second compressing mechanism (2) arrival end, second evaporimeter (8) port of export, second evaporimeter (8) arrival end, second throttle body (6), first throttle mechanism (5), first evaporimeter (7) arrival end, first evaporimeter (7) port of export, be connected with described first compressing mechanism (1) arrival end, described condenser (9) arrival end is connected with the pipeline between the first compressing mechanism (1) port of export and the second compressing mechanism (2) port of export, described condenser (9) port of export is connected with the pipeline between described second throttle body (6) and first throttle mechanism (5),
Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that described first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body (6) aperture; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that described second sensor (32) is detected, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by the method for adjustment first compressing mechanism (1) operating frequency; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
10. a control method for airhandling equipment, described airhandling equipment comprises the first compressing mechanism (1), condenser (9), first throttle mechanism (5), the first evaporimeter (7); Second compressing mechanism (2), second throttle body (6), the second evaporimeter (8) and air conditioner unit (100);
Described air conditioner unit (100) is made up of air blender (10), new wind passage (11), return air channel (12), air-supply passage (13); Described air blender (10) is connected with the new wind passage (11) of air conditioner unit (100), return air channel (12), air-supply passage (13) respectively;
Described first compressing mechanism (1) port of export is successively through the second compressing mechanism (2) port of export, second compressing mechanism (2) arrival end, second evaporimeter (8) port of export, second evaporimeter (8) arrival end, second throttle body (6), first throttle mechanism (5), first evaporimeter (7) arrival end, first evaporimeter (7) port of export, be connected with described first compressing mechanism (1) arrival end, described condenser (9) arrival end is connected with the pipeline between the first compressing mechanism (1) port of export and the second compressing mechanism (2) port of export, described condenser (9) port of export is connected with the pipeline between described second throttle body (6) and first throttle mechanism (5),
Described first evaporimeter (7) is arranged in the new wind passage (11) of air conditioner unit (100), and described second evaporimeter (8) is arranged in the return air channel (12) of air conditioner unit (100);
First sensor (31) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual dry-bulb temperature of air of air conditioner unit (100);
Second sensor (32) is arranged at described air conditioner unit (100) air-supply passage (13) port of export or return air channel (12) arrival end, for detecting the actual wet-bulb temperature of air of air conditioner unit (100);
It is characterized in that: in the course of work, the actual dry-bulb temperature of air of the air conditioner unit (100) that first sensor (31) detects, be fed to controller (50), in controller (50), compare with the air dry-bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value exceedes required value, then by regulating the method for second throttle body (6) aperture; The actual dry-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual dry-bulb temperature of air and air dry-bulb temperature desired value in allowed band;
The actual wet-bulb temperature of air of the air conditioner unit (100) that the second sensor (32) detects, also controller (50) is fed to, in controller (50), compare with the air ' s wet bulb temperature desired value of the air conditioner unit preset (100), when the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value exceedes required value, then by regulating the method for first throttle mechanism (5) aperture; The actual wet-bulb temperature of air of air conditioner unit (100) is regulated, makes the deviation of the actual wet-bulb temperature of air and air ' s wet bulb temperature desired value in allowed band.
CN201510563929.XA 2015-08-29 2015-08-29 Airhandling equipment and control method Pending CN105222240A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201510563929.XA CN105222240A (en) 2015-08-29 2015-08-29 Airhandling equipment and control method
CN201620900263.2U CN205957353U (en) 2015-08-29 2016-08-02 Air treatment device
CN201610646748.8A CN106288045A (en) 2015-08-29 2016-08-02 Airhandling equipment and control method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106152285A (en) * 2016-08-16 2016-11-23 珠海格力电器股份有限公司 Air conditioning system and control method thereof
CN106288045A (en) * 2015-08-29 2017-01-04 刘雄 Airhandling equipment and control method
CN107687686A (en) * 2017-08-18 2018-02-13 深圳市共济科技股份有限公司 A kind of refrigeration air conditioner and its control method
CN108731197A (en) * 2018-04-20 2018-11-02 青岛海尔空调器有限总公司 A kind of fresh air conditioner and its control method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106288045A (en) * 2015-08-29 2017-01-04 刘雄 Airhandling equipment and control method
CN106152285A (en) * 2016-08-16 2016-11-23 珠海格力电器股份有限公司 Air conditioning system and control method thereof
CN106152285B (en) * 2016-08-16 2023-07-04 珠海格力电器股份有限公司 Air conditioning system and control method thereof
CN107687686A (en) * 2017-08-18 2018-02-13 深圳市共济科技股份有限公司 A kind of refrigeration air conditioner and its control method
CN107687686B (en) * 2017-08-18 2022-12-20 深圳市共济科技股份有限公司 Refrigeration air conditioner and control method thereof
CN108731197A (en) * 2018-04-20 2018-11-02 青岛海尔空调器有限总公司 A kind of fresh air conditioner and its control method

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Application publication date: 20160106