CN104864546A - Control method of combined air-conditioning unit, controller and air-conditioning unit - Google Patents
Control method of combined air-conditioning unit, controller and air-conditioning unit Download PDFInfo
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- CN104864546A CN104864546A CN201410067131.1A CN201410067131A CN104864546A CN 104864546 A CN104864546 A CN 104864546A CN 201410067131 A CN201410067131 A CN 201410067131A CN 104864546 A CN104864546 A CN 104864546A
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- return air
- handling unit
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method of a combined air-conditioning unit, a controller and the air-conditioning unit. The method comprises steps as follows: return air temperature and return air humidity of the combined air-conditioning unit are detected at an interval of preset time t1 in a refrigeration mode, and detection results of the return air temperature T2 and the return air humidity RH2 are obtained; whether the return air humidity RH2 is within a set return air humidity range is judged; if the answer is positive, whether the return air temperature T2 is within a set return air temperature range is judged, and if the answer is negative, a water valve of a surface air cooler or an electric heater in the combined air-conditioning unit are adjusted. Operation parameters of the air-conditioning unit are monitored in different time in real time, and the operation of the air-conditioning unit is adjusted according to the operation parameters. Inaccuracy of subjective control for the air-conditioning unit is avoided, and labor resources are saved; meanwhile, the air-conditioning unit can automatically operate and control the electric heater and other devices operating in the air-conditioning unit according to actual conditions, and accordingly, the overall operation energy consumption of the air-conditioning unit is reduced.
Description
Technical field
The present invention relates to automation field, particularly relate to method, controller and air-conditioner set that a kind of unitary air handling unit controls.
Background technology
Current, along with civilian, industrial central air-conditioner is fast-developing, the processing procedure of air, the requirement for the treatment of effect also improve constantly.The air handling requirement of constant temperature and humidity extensively sees in different air-conditioning systems.Electric heating function section in unitary air handling unit is the functional section often used in constant temperature and humidity air-conditioning system.It both can supplement indoor heat load, more to air themperature, air humidity, there is fine setting effect.
At present artificial direct manual many gears are mostly for unitary air handling unit electric heating control to control, judge to open electrical heating gear according to indoor actual air duty parameter by operating personnel, thus air parameter is regulated.This mode of operation labor intensive is comparatively large, and efficiency is not high, has operating delay, is unfavorable for energy-conservation, shortens the service life of electric heater.And the temperature and humidity regulation of air has certain subjectivity.
Summary of the invention
Based on this, being necessary to provide a kind of can carry out the control method of the unitary air handling unit automatically controlled, controller and air-conditioner set according to the ruuning situation of air-conditioner set to the assembly of air-conditioner set.
For realizing the control method of a kind of unitary air handling unit that the object of the invention provides, comprise the following steps:
S100, in cooling mode, at interval of preset time t
1detect return air temperature and the return air humidity of unitary air handling unit, obtain return air temperature T
2with return air humidity RH
2testing result;
S200, judges described return air humidity RH
2whether within the scope of return air humidity set point, if so, then continue to judge described return air temperature T
2whether in return air temperature range of set value; If not, then the surface cooler water valve in described unitary air handling unit or electric heater is adjusted.
As a kind of embodiment of the control method of unitary air handling unit, in step S200, described continuation judges described return air temperature T
2whether in return air temperature range of set value, comprise the following steps:
S210, judges described return air temperature T
2whether in return air temperature range of set value, obtain judged result;
S220, according to described judged result, when described return air temperature T2 is in return air temperature range of set value or when described return air temperature T2 is larger than all values in described return air temperature range of set value, keep the gear of the aperture of the new air-valve of described unitary air handling unit, air returning valve, surface cooler water valve and described electric heater constant;
S220 ', as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value.
As a kind of embodiment of the control method of unitary air handling unit, step S220 ', as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value, further comprising the steps of afterwards;
S230 ', interval preset time t
1the surface cooler water valve of described unitary air handling unit, whether within the scope of described return air humidity set point, if not, is then set to maximum opening by the rear return air humidity judging described unitary air handling unit.
As a kind of embodiment of the control method of unitary air handling unit, in step S200, the surface cooler water valve in the described unitary air handling unit of described adjustment or electric heater, comprise the following steps:
S230, as described return air humidity RH
2time all less than all values within the scope of described return air humidity set point, close the gear of one grade of described electric heater, and when all gears of described electrical heating shelves are all closed, the surface cooler water valve of described unitary air handling unit is set to maximum opening;
S230 ", as described return air humidity RH
2time all larger than all values within the scope of described return air humidity set point, open the gear of next grade of described electric heater.
As a kind of embodiment of the control method of unitary air handling unit, described preset value is 10% of the aperture of current described surface cooler water valve.
As a kind of embodiment of the control method of unitary air handling unit, described return air humidity set scope is: the difference of the return air humidity value of setting and the return air humidity deviation value preset, and the return air humidity value of described setting and described default return air humidity deviation value and between the closed area that forms;
Described return air temperature setting range is: the difference of the return air temperature value of setting and the return air temperature deviate preset, and the return air temperature value of described setting and described default return air temperature deviate and be worth between the closed area that forms.
As a kind of embodiment of the control method of unitary air handling unit, further comprising the steps of before step S100:
S010, opens described unitary air handling unit, and the new air-valve of described unitary air handling unit and air returning valve are set to default aperture, and the surface cooler water valve of described unitary air handling unit is set to maximum opening;
S020, described new air-valve, after described air returning valve and described surface cooler water valve are provided with, opens centrifugal blower, and performs step S100 further.
Based on the controller of a kind of unitary air handling unit of same inventive concept, comprise detection module and judging treatmenting module, wherein:
Described detection module, at interval of preset time t
1detect return air temperature and the return air humidity of unitary air handling unit, obtain return air temperature T
2with return air humidity RH
2testing result;
Described judging treatmenting module, for judging described return air humidity RH
2whether within the scope of return air humidity set point, if so, then continue to judge described return air temperature T
2whether in return air temperature range of set value; If not, then the surface cooler water valve in described unitary air handling unit or electric heater is adjusted.
As a kind of embodiment of the controller of unitary air handling unit, described judging treatmenting module comprises the first judgement submodule, the first process submodule, and the second process submodule, wherein:
Described first judges submodule, for judging described return air temperature T
2whether in return air temperature range of set value, obtain judged result;
Described first process submodule, for according to described judged result, when described return air temperature T2 is in return air temperature range of set value or when described return air temperature T2 is larger than all values in described return air temperature range of set value, keep the gear of the aperture of the new air-valve of described unitary air handling unit, air returning valve, surface cooler water valve and described electric heater constant;
Described second process submodule, for working as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value.
As a kind of embodiment of the controller of unitary air handling unit, described judging treatmenting module also comprises the 3rd process submodule and the 4th process submodule, wherein:
Described 3rd process submodule, for working as described return air humidity RH
2time all less than all values within the scope of described return air humidity set point, close the gear of one grade of described electric heater, and when all gears of described electrical heating shelves are all closed, the surface cooler water valve of described unitary air handling unit is set to maximum opening;
Described 4th process submodule, for working as described return air humidity RH
2time all larger than all values within the scope of described return air humidity set point, open the gear of next grade of described electric heater.
As a kind of embodiment of the controller of unitary air handling unit, described preset value is 10% of the aperture of current described surface cooler water valve.
As a kind of embodiment of the controller of unitary air handling unit, described return air humidity set scope is: the difference of the return air humidity value of setting and the return air humidity deviation value preset, and the return air humidity value of described setting and described default return air humidity deviation value and between the closed area that forms;
Described return air temperature setting range is: the difference of the return air temperature value of setting and the return air temperature deviate preset, and the return air temperature value of described setting and described default return air temperature deviate and be worth between the closed area that forms.
As a kind of embodiment of the controller of unitary air handling unit, also comprise the first start arrange module and second start module is set, wherein:
Described first start arranges module, for opening described unitary air handling unit, the new air-valve of described unitary air handling unit and air returning valve is set to default aperture, and the surface cooler water valve of described unitary air handling unit is set to maximum opening;
Described second starts shooting arranges module, for arranging module by described new air-valve when described first start, after described air returning valve and described surface cooler water valve are provided with, opening centrifugal blower, and turning execution detection module.
Based on a kind of air-conditioner set of identical inventive concept, comprise mixing section, fillter section, steam heating segment, surface cooling section, dry saturated steam humidifier section, electric heater section, flow equalization section, muffler section and air supply section, also comprise the controller of aforesaid unitary air handling unit.
Beneficial effect of the present invention comprises:
The control method of unitary air handling unit of the present invention, controller and air-conditioner set, the at times operational factor of monitoring air conditioner group in real time, and adjust according to the operation of operational factor to air-conditioner set.Avoid the inaccuracy thinking that subjectivity controls air-conditioner set, save human resources, meanwhile, the equipment such as the electric heater in the air-conditioner set described in the operation of air conditioner of automation controls can to run according to actual conditions, reduce the energy resource consumption of air-conditioner set overall operation.Also unnecessary air-conditioning equipment continuous service is avoided to cause device loss excessive.
Accompanying drawing explanation
Fig. 1 is the flow chart of a specific embodiment of the control method of a kind of unitary air handling unit of the present invention;
Fig. 2 is the system architecture schematic diagram of a specific embodiment of the controller of a kind of unitary air handling unit of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, be described below in conjunction with the detailed description of the invention of accompanying drawing to the control method of unitary air handling unit of the present invention, controller and air-conditioner set.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The control method of the unitary air handling unit of the embodiment of the present invention, as shown in Figure 1, comprises the following steps:
S100, in cooling mode, at interval of preset time t
1detect return air temperature and the return air humidity of unitary air handling unit, obtain return air temperature T
2with return air humidity RH
2testing result.
S200, judges described return air humidity RH
2whether within the scope of return air humidity set point, if so, then continue to judge described return air temperature T
2whether in return air temperature range of set value; If not, then the surface cooler water valve in described unitary air handling unit or electric heater is adjusted.
It should be noted that unitary air handling unit has mixing section, fillter section, steam heating segment, surface cooling section, dry saturated steam humidifier section, electric heater section, flow equalization section, muffler section, air supply section herein.
Unit requirement, in cooling mode, steam heating segment, dry saturated steam humidifier section do not work, the functional section being left other is utilized to carry out temperature and humidity regulation to air, (reduce the relative humidity that indoor temperature can improve air accordingly, improve indoor temperature then contrary, the relative humidity of air can be reduced) preferentially guarantee indoor air humidity parameter request.
In the embodiment of the present invention, air-conditioner set, when refrigeration mode, often detects the ruuning situation of air-conditioner set self at regular intervals, and arranges according to the operation of return data parameter to air-conditioner set.In the embodiment of the present invention, preset time t
1for being stored in advance in the supplemental characteristic in air-conditioner set, can arrange the Stringency that air parameter requires according to air-conditioner set actual motion space, as required air parameter, strict place to use can arrange shorter preset time t
1, can be set to arrange shorter half an hour; Relative, air parameter is being required it is not that place to use strict especially can arrange longer Preset Time, as 1 hour can be set to, the ruuning situation of air-conditioner set is detected, thus reached the object regulating region air parameter by the operational factor of the equipment adjusting air-conditioner set.
In the embodiment of the present invention, preferentially judge return air humidity, the operation realizing the preferential air-conditioner set of humidity controls, and meets the demand trend that current air-conditioner set uses.Further return air temperature is judged when return air humidity satisfies condition, whether satisfy the demands according to return air temperature and the operation of air-conditioner set is controlled, if return air humidity does not meet pre-conditioned, then control in described unitary air handling unit the surface cooler water valve of its Main Function of regulation and control of return air humidity and return air temperature and electric heater according to the size of return air humidity.Mainly adjust the aperture of described surface cooler water valve, and by opening or close described one or more gear electrically heated.
The control method of the unitary air handling unit of the embodiment of the present invention, the at times operational factor of real-time monitoring air conditioner group, and adjust according to the operation of operational factor to air-conditioner set.Avoid the inaccuracy thinking that subjectivity controls air-conditioner set, save human resources, meanwhile, the equipment such as the electric heater in the air-conditioner set described in the operation of air conditioner of automation controls can to run according to actual conditions, reduce the energy resource consumption of air-conditioner set overall operation.Also unnecessary air-conditioning equipment continuous service is avoided to cause device loss excessive.
In the embodiment of the control method of a unitary air handling unit wherein, in step S200, described continuation judges described return air temperature T
2whether in return air temperature range of set value, comprise the following steps:
S210, judges described return air temperature T
2whether in return air temperature range of set value, obtain judged result.
S220, according to described judged result, when described return air temperature T2 is in return air temperature range of set value or when described return air temperature T2 is larger than all values in described return air temperature range of set value, keep the gear of the aperture of the new air-valve of described unitary air handling unit, air returning valve, surface cooler water valve and described electric heater constant.
S220 ', as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value.
First return air humidity is judged, when return air humidity is within the scope of described return air humidity set point, then further return air temperature is judged.
As return air humidity set scope as described in is in another embodiment of the invention: the return air humidity value (RH establishes) of setting and the difference of the return air humidity deviation value (RH is inclined) preset, and the return air humidity value of described setting and described default return air humidity deviation value and between the closed area that forms, namely RH establish-RH partially≤RH
2≤ RH establishes+RH inclined.The return air humidity value of described setting is need the artificial setting to air-conditioner set according to the actual motion of air-conditioning, and normal condition system air-conditioner set runs by the return air humidity value of setting.Described return air deviate is be preset in air-conditioner set, and namely air-conditioner set is centered by the return air humidity value of setting, runs in certain deviation range.
Described return air temperature setting range is: the difference of the return air temperature value (T establishes) of setting and the return air temperature deviate (T is inclined) preset, and the return air temperature value of described setting and described default return air temperature deviate and be worth between the closed area that forms.Similar to the definition of described return air humidity set scope, T establish-T partially≤T
2≤ T establishes+T inclined.
In the embodiment of the control method of a unitary air handling unit wherein, abovementioned steps S220 ', as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value, further comprising the steps of afterwards;
S230 ', interval preset time t
1the surface cooler water valve of described unitary air handling unit, whether within the scope of described return air humidity set point, if not, is then set to maximum opening by the rear return air humidity judging described unitary air handling unit.If so, then according to normal procedure, return and perform step S100.
RH2 meet RH establish-RH partially≤RH
2≤ RH establishes+RH to persist in asking, then regulate indoor air temperature further, gathers T
2and judge, obtain two hypothesis
If T
2meet the demands, keep the aperture of related valve, gear, and continue to detect RH
2and T
2, until RH
2change.
T
2do not meet the demands, be divided into a, b two kinds of situations
T
2< T establishes-T inclined, then reduce water valve aperture with preset value; After t1 circulation timei, continue to gather return air temperature T
2with RH
2, then be now divided into nine kinds of situations as shown in table 1:
Table 19 kind of humiture situation and alignment processing method
T
2> T establishes+T inclined, illustrates that air condition has exceeded the hardware processing capability of unit reality, keeps the aperture of related valve, gear, and continues to detect RH
2and T
2, until RH
2change.
In the embodiment of the control method of a unitary air handling unit wherein, in step S200, the surface cooler water valve in the described unitary air handling unit of described adjustment or electric heater, comprise the following steps:
S230, as described return air humidity RH
2time all less than all values within the scope of described return air humidity set point, close the gear of one grade of described electric heater, and when all gears of described electrical heating shelves are all closed, the surface cooler water valve of described unitary air handling unit is set to maximum opening.When air-conditioning is just opened, the gear of all electric heaters is all in closed condition, then the aperture of a now adjustment form cooler water valve.
S230 ", as described return air humidity RH
2time all larger than all values within the scope of described return air humidity set point, open the gear of next grade of described electric heater.
To RH in the embodiment of the present invention
2do not meet the demands, comprise the content of following two aspects:
1.RH
2< RH establishes-RH inclined, then by surface cooler water valve to maximum opening, the relative humidity of increase air, until RH
2change.
2.RH
2> RH establishes+RH inclined, opens first grade of electrical heating, with t by original state
1time cycle detection return air humidity RH
2, now may there is the situation of following two aspects:
1. .RH establish-RH partially≤RH
2≤ RH establishes+RH inclined, then keep aperture, until RH
2change, if be changed to RH
2< RH establishes-RH inclined, then close first grade of electrical heating, continues surface cooler water valve to maximum opening, until RH
2change; If be changed to RH
2> RH establishes+RH inclined, then enter following situation 2..
2. .RH
2> RH establishes+RH inclined, opens next grade of electrical heating, with t
1time circulation continues to detect return air humidity RH
2if, RH establish-RH partially≤RH
2≤ RH establishes+RH inclined, keeps aperture, until RH
2after this change, if be changed to RH
2< RH establishes-RH inclined, then close each shelves electrical heating successively, until Close All completes, if be changed to RH
2> RH establishes+RH inclined, opens next grade of electrical heating.Circulate with the t1 time and continue to detect return air humidity RH
2and judge, continue to perform by above description circulation.
In the embodiment of the present invention, control the gear of electric heater according to the size of return air humidity, control the switch of different gear, control humiture parameter with minimum energy resource consumption flexible modulation.
Preferably, in the embodiment of the control method of a unitary air handling unit wherein, described preset value is 10% of the aperture of current described surface cooler water valve.At each t
1after time circulation, the gradient with 10% reduces the aperture of water valve, realizes the regulable control to air-conditioning humiture.
Further comprising the steps of before step S100 in the embodiment of the control method of a unitary air handling unit wherein:
S010, opens described unitary air handling unit, and the new air-valve of described unitary air handling unit and air returning valve are set to default aperture, and the surface cooler water valve of described unitary air handling unit is set to maximum opening.
S020, described new air-valve, after described air returning valve and described surface cooler water valve are provided with, opens centrifugal blower, and performs step S100 further.
In the embodiment of the present invention, after air-conditioner set start runs, initial setting up is carried out to each parts in air-conditioner set, comprise and open new, air returning valve to preset value, unlatching surface cooler water valve to maximum opening, open centrifugal blower after air-valve, water valve all put in place, after completing, judge that start completes.Centrifugal blower of having started shooting normally works and enters after cooling mode with t
1time cycle detection return air temperature T
2, return air humidity RH
2.
Based on same inventive concept, the embodiment of the present invention provides a kind of controller of unitary air handling unit, the principle of dealing with problems due to this controller is similar to the control method of aforementioned a kind of unitary air handling unit, therefore, the enforcement of this controller can realize according to the concrete steps of preceding method, repeats part and repeats no more.
The controller of the unitary air handling unit of the embodiment of the present invention, as shown in Figure 2, comprises detection module 100 and judging treatmenting module 200.Wherein: described detection module 100, at interval of preset time t
1detect return air temperature and the return air humidity of unitary air handling unit, obtain return air temperature T
2with return air humidity RH
2testing result; Described judging treatmenting module 200, for judging described return air humidity RH
2whether within the scope of return air humidity set point, if so, then continue to judge described return air temperature T
2whether in return air temperature range of set value; If not, then the surface cooler water valve in described unitary air handling unit or electric heater is adjusted.
The controller of the unitary air handling unit of the embodiment of the present invention, the at times operational factor of real-time monitoring air conditioner group, and adjust according to the operation of operational factor to air-conditioner set.Avoid artificial subjective situation of air-conditioner set being carried out to precise control difference, save human resources.Meanwhile, the equipment such as the electric heater in the air-conditioner set described in the operation of air conditioner of automation controls can to run according to actual conditions, reduce the energy resource consumption of air-conditioner set overall operation.Also unnecessary air-conditioning equipment continuous service is avoided to cause device loss excessive.
In the embodiment of the controller of a unitary air handling unit wherein, described judging treatmenting module 200 comprises the first judgement submodule 210, first and processes submodule 220, and the second process submodule 230.Wherein: described first judges submodule 210, for judging described return air temperature T
2whether in return air temperature range of set value, obtain judged result; Described first process submodule 220, for according to described judged result, when described return air temperature T2 is in return air temperature range of set value or when described return air temperature T2 is larger than all values in described return air temperature range of set value, keep the gear of the aperture of the new air-valve of described unitary air handling unit, air returning valve, surface cooler water valve and described electric heater constant; Described second process submodule 230, for working as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value.
In the embodiment of the present invention, when the return air humidity of air-conditioner set is in preset range, according to the aperture of the surface cooler water valve in return air temperature adjustment air-conditioner set, when return air temperature is too low, reducing the aperture of surface cooler water valve, is that return air temperature raises.The operation of air-conditioner set is controlled according to the parameter accurate information of air-conditioner set, not by the impact of human factor, precise control.
In the embodiment of the controller of a unitary air handling unit wherein, described judging treatmenting module also comprises the 3rd process submodule 240 and the 4th process submodule 250.Wherein: described 3rd process submodule 240, for when described return air humidity RH2 is less than all values within the scope of described return air humidity set point, close the gear of one grade of described electric heater, and when all gears of described electrical heating shelves are all closed, the surface cooler water valve of described unitary air handling unit is set to maximum opening; Described 4th process submodule 250, for when described return air humidity RH2 is larger than all values within the scope of described return air humidity set point, opens the gear of next grade of described electric heater.
According to the size of air-conditioner set return air humidity, control the gear of air-conditioner set electric heater, realize controlling accurately, avoid multiple gear to open simultaneously and cause the waste of resource and the excessive loss of components and parts.
In the embodiment of the controller of a unitary air handling unit wherein, described preset value is 10% of the aperture of current described surface cooler water valve.
Preferably, in the embodiment of the controller of a unitary air handling unit wherein, described return air humidity set scope is: the difference of the return air humidity value of setting and the return air humidity deviation value preset, and the return air humidity value of described setting and described default return air humidity deviation value and between the closed area that forms;
Described return air temperature setting range is: the difference of the return air temperature value of setting and the return air temperature deviate preset, and the return air temperature value of described setting and described default return air temperature deviate and be worth between the closed area that forms.
Certain threshold range is set, avoids judging that boundary causes control too sensitive using independent comparison point as control, damage is caused to the parts of air-conditioner set.
In the embodiment of the controller of a unitary air handling unit wherein, also comprise the first start and module is set and the second start arranges module.Wherein: described first start arranges module, for opening described unitary air handling unit, the new air-valve of described unitary air handling unit and air returning valve is set to default aperture, and the surface cooler water valve of described unitary air handling unit is set to maximum opening; Described second starts shooting arranges module, for arranging module by described new air-valve when described first start, after described air returning valve and described surface cooler water valve are provided with, opening centrifugal blower, and turning execution detection module.
Based on a kind of air-conditioner set of same inventive concept, comprise mixing section, fillter section, steam heating segment, surface cooling section, dry saturated steam humidifier section, electric heater section, flow equalization section, muffler section, air supply section, and the controller of aforesaid unitary air handling unit.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (14)
1. a control method for unitary air handling unit, is characterized in that, comprises the following steps:
S100, in cooling mode, at interval of preset time t
1detect return air temperature and the return air humidity of unitary air handling unit, obtain return air temperature T
2with return air humidity RH
2testing result;
S200, judges described return air humidity RH
2whether within the scope of return air humidity set point, if so, then continue to judge described return air temperature T
2whether in return air temperature range of set value; If not, then the surface cooler water valve in described unitary air handling unit or electric heater is adjusted.
2. the control method of unitary air handling unit according to claim 1, is characterized in that, in step S200, described continuation judges described return air temperature T2 whether in return air temperature range of set value, comprises the following steps:
S210, judges described return air temperature T
2whether in return air temperature range of set value, obtain judged result;
S220, according to described judged result, when described return air temperature T2 is in return air temperature range of set value or when described return air temperature T2 is larger than all values in described return air temperature range of set value, keep the gear of the aperture of the new air-valve of described unitary air handling unit, air returning valve, surface cooler water valve and described electric heater constant;
S220 ', as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value.
3. the control method of unitary air handling unit according to claim 2, is characterized in that, step S220 ', as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value, further comprising the steps of afterwards;
S230 ', interval preset time t
1the surface cooler water valve of described unitary air handling unit, whether within the scope of described return air humidity set point, if not, is then set to maximum opening by the rear return air humidity judging described unitary air handling unit.
4. the control method of unitary air handling unit according to claim 1, is characterized in that, in step S200, the surface cooler water valve in the described unitary air handling unit of described adjustment or electric heater, comprise the following steps:
S230, as described return air humidity RH
2time all less than all values within the scope of described return air humidity set point, close the gear of one grade of described electric heater, and when all gears of described electrical heating shelves are all closed, the surface cooler water valve of described unitary air handling unit is set to maximum opening;
S230 ", as described return air humidity RH
2time all larger than all values within the scope of described return air humidity set point, open the gear of one grade of described electric heater.
5. the control method of unitary air handling unit according to claim 2, is characterized in that, described preset value is 10% of the aperture of current described surface cooler water valve.
6. the control method of the unitary air handling unit according to any one of claim 1 to 5, is characterized in that:
Described return air humidity set scope is: the difference of the return air humidity value of setting and the return air humidity deviation value preset, and the return air humidity value of described setting and described default return air humidity deviation value and between the closed area that forms;
Described return air temperature setting range is: the difference of the return air temperature value of setting and the return air temperature deviate preset, and the return air temperature value of described setting and described default return air temperature deviate and be worth between the closed area that forms.
7. the control method of unitary air handling unit according to claim 6, is characterized in that, further comprising the steps of before step S100:
S010, opens described unitary air handling unit, and the new air-valve of described unitary air handling unit and air returning valve are set to default aperture, and the surface cooler water valve of described unitary air handling unit is set to maximum opening;
S020, described new air-valve, after described air returning valve and described surface cooler water valve are provided with, opens centrifugal blower, and performs step S100 further.
8. a controller for unitary air handling unit, is characterized in that, comprises detection module and judging treatmenting module, wherein:
Described detection module, at interval of preset time t
1detect return air temperature and the return air humidity of unitary air handling unit, obtain return air temperature T
2with return air humidity RH
2testing result;
Described judging treatmenting module, for judging described return air humidity RH
2whether within the scope of return air humidity set point, if so, then continue to judge described return air temperature T
2whether in return air temperature range of set value; If not, then the surface cooler water valve in described unitary air handling unit or electric heater is adjusted.
9. the controller of unitary air handling unit according to claim 8, is characterized in that, described judging treatmenting module comprises the first judgement submodule, the first process submodule, and the second process submodule, wherein:
Described first judges submodule, for judging described return air temperature T
2whether in return air temperature range of set value, obtain judged result;
Described first process submodule, for according to described judged result, when described return air temperature T2 is in return air temperature range of set value or when described return air temperature T2 is larger than all values in described return air temperature range of set value, keep the gear of the aperture of the new air-valve of described unitary air handling unit, air returning valve, surface cooler water valve and described electric heater constant;
Described second process submodule, for working as described return air temperature T
2time all less than all values in described return air temperature range of set value, reduce the aperture of described surface cooler water valve with preset value.
10. the controller of unitary air handling unit according to claim 8, is characterized in that, described judging treatmenting module also comprises the 3rd process submodule and the 4th process submodule, wherein:
Described 3rd process submodule, for working as described return air humidity RH
2time all less than all values within the scope of described return air humidity set point, close the gear of one grade of described electric heater, and when all gears of described electrical heating shelves are all closed, the surface cooler water valve of described unitary air handling unit is set to maximum opening;
Described 4th process submodule, for working as described return air humidity RH
2time all larger than all values within the scope of described return air humidity set point, open the gear of next grade of described electric heater.
The controller of 11. unitary air handling unit according to claim 9, is characterized in that, described preset value is 10% of the aperture of current described surface cooler water valve.
The controller of the unitary air handling unit described in 12. any one of according to Claim 8 to 11, is characterized in that:
Described return air humidity set scope is: the difference of the return air humidity value of setting and the return air humidity deviation value preset, and the return air humidity value of described setting and described default return air humidity deviation value and between the closed area that forms;
Described return air temperature setting range is: the difference of the return air temperature value of setting and the return air temperature deviate preset, and the return air temperature value of described setting and described default return air temperature deviate and be worth between the closed area that forms.
The controller of 13. unitary air handling unit according to claim 12, is characterized in that, also comprise the first start arrange module and second start module is set, wherein:
Described first start arranges module, for opening described unitary air handling unit, the new air-valve of described unitary air handling unit and air returning valve is set to default aperture, and the surface cooler water valve of described unitary air handling unit is set to maximum opening;
Described second starts shooting arranges module, for arranging module by described new air-valve when described first start, after described air returning valve and described surface cooler water valve are provided with, opening centrifugal blower, and turning execution detection module.
14. 1 kinds of air-conditioner set, comprise mixing section, fillter section, steam heating segment, surface cooling section, dry saturated steam humidifier section, electric heater section, flow equalization section, muffler section and air supply section, it is characterized in that, also comprise the controller of the unitary air handling unit described in any one of claim 8 to 13.
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| CN201410067131.1A CN104864546A (en) | 2014-02-26 | 2014-02-26 | Control method of combined air-conditioning unit, controller and air-conditioning unit |
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| CN201410067131.1A CN104864546A (en) | 2014-02-26 | 2014-02-26 | Control method of combined air-conditioning unit, controller and air-conditioning unit |
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