CN106765965B - The control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit - Google Patents
The control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit Download PDFInfo
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- CN106765965B CN106765965B CN201611248033.3A CN201611248033A CN106765965B CN 106765965 B CN106765965 B CN 106765965B CN 201611248033 A CN201611248033 A CN 201611248033A CN 106765965 B CN106765965 B CN 106765965B
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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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Abstract
The invention discloses a kind of control methods of shunt water-cooling type thermostatic and humidistatic air conditioning unit, it is compared by actual compressor pressure at expulsion, air themperature and the humidity that will test with preset Compressor Discharge Pressure, air themperature and humidity, the aperture that chilled-water flow is adjusted infinitely is adjusted, guarantees Compressor Discharge Pressure within safe range；Aperture, the operating condition of compressor, humidifier and pressure fan for adjusting threeway ratio adjusting valve, reach the accurate control of constant temperature and humidity.
Description
Technical field
The present invention relates to field of air conditioning, in particular to a kind of control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit.
Background technique
Existing water-cooling type thermostatic and humidistatic air conditioning unit by electric heating reheating temperature adjustment, then is led to using evaporator cool-down dehumidification
Humidifier damping is crossed, reaching temperature and humidity has the requirement of air-conditioned room of particular/special requirement, provides constant temperature and humidity air-treatment.But
Due to general water-cooling type thermostatic and humidistatic air conditioning unit, reheating temperature adjustment all uses electric heating to complete, and compressor major part feelings
Condition works under conditions of determining frequency, and when compressor standard-sized sheet, under partial load condition, compressor cooling capacity is bigger than normal, and air conditioner goes out
Air temperature is substantially lower than the requirement of setting temperature and humidity value, needs a large amount of electric heating to realize thermal compensation, guarantees the mesh of constant temperature and humidity
, though this method can achieve the purpose that constant temperature and humidity, energy consumption is very big.In addition, being easy when powerful electric heater is run
Now overheat, overcurrent, the problems such as burning or even is on fire, it is unreliable to run.
As it can be seen that the prior art could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, it is permanent that the purpose of the present invention is to provide a kind of shunt water-cooling type constant temperature
The control method of wet air conditioner, the control method improve the operational reliability and tune of shunt water-cooling type thermostatic and humidistatic air conditioning unit
Save precision.
In order to achieve the above object, this invention takes following technical schemes:
A kind of control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit, which comprises the following steps:
S100, preset compressor safety exhaust pressure P2, return air temperature T2, return air temperature in the controller of the air conditioner
Degree span of control limit of control T3, it return air humidity Φ 2, return air humid control precision Φ 3, supply air temperature T5, supply air temperature span of control limit of control T6, send
Wind moisture is Φ 5 and blasting humidity span of control limit of control is Φ 6；
S200, the pressure sensor for being set to compressor outlet pipeline detect actual exhaust air pressure P1 and feed back to control
Device, controller make comparisons P1 with P2, infinitely adjusted according to comparison result the aperture of the flow control valve of water-cooled condenser with
The flow of chilled water is controlled, until P1 is greater than P2；The controller also judges if current constant temperature and humidity controls target as air-conditioning
Air themperature at machine return air inlet thens follow the steps S300, if current constant temperature and humidity control target is at air conditioner air outlet
Air themperature thens follow the steps S400；
S300, the first temperature sensor being set at the air conditioner return air inlet and the first humidity sensor detect respectively
The actual temperature T1 and actual humidity Φ 1 of air and it will test result at return air inlet and feed back to the controller, the controller
T1 is made comparisons with (T2+T3) and (T2-T3), and the controller makees Φ 1 and (Φ 2+ Φ 3) and (Φ 2- Φ 3)
Compare, according to above-mentioned comparison result, the controller sends corresponding instruction control threeway ratio adjusting valve respectively, auxiliary adds
The operating status of hot device and humidifier is until air reaches constant temperature and humidity at return air inlet；
S400, the second temperature sensor being set at the air conditioner air outlet and the second humidity sensor detect respectively
The actual temperature T4 and actual humidity Φ 4 of air and it will test result at air outlet and feed back to the controller, the controller
T4 is made comparisons with (T5+T6) and (T5-T6), and the controller makees Φ 4 and (Φ 5+ Φ 6) and (Φ 5- Φ 6)
Compare, according to above-mentioned comparison result, the controller sends corresponding instruction control threeway ratio adjusting valve respectively, auxiliary adds
The operating status of hot device and humidifier is until air reaches constant temperature and humidity at air outlet.
In the control method of the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the step S300 is specifically included:
If T1 >=(T2+T3), and Φ 1 >=(Φ 2+ Φ 3), or work as T1 >=(T2+T3), and (Φ 2+ Φ 3) >=Φ 1 >=
When (Φ 2- Φ 3), the controller control compressor is opened, and the third channel aperture of threeway ratio adjusting valve is minimum and second is logical
Road aperture is maximum, and electrical auxiliary heater is shut down, and humidifier is shut down；
If T1 >=(T2+T3), and 1 < of Φ (Φ 2- Φ 3), the controller control compressor is opened, threeway ratio tune
It saves the third channel aperture minimum of valve and second channel aperture is maximum, electrical auxiliary heater is shut down, humidifier starting；
If (T2+T3) >=T1 >=(T2-T3), and Φ 1 >=(Φ 2+ Φ 3), the controller control compressor is opened, three
The third channel aperture of logical ratio adjusting valve increases and second channel aperture reduces, and auxiliary electrical heater is shut down, and humidifier is shut down；
(if T2+T3) >=T1 >=(T2-T3), and (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), the compressor, threeway
Ratio adjusting valve, electrical auxiliary heater and humidifier keep original state；
If (T2+T3) >=T1 >=(T2-T3), and 1 < of Φ (Φ 2- Φ 3), the compressor, threeway ratio adjusting valve and
Electrical auxiliary heater keeps original state, the controller control humidifier starting；
If T1 < (T2-T3), and Φ 1 >=(Φ 2+ Φ 3), the controller control compressor is opened, threeway ratio tune
It saves the increase of valve third channel aperture and second channel aperture reduces, humidifier is shut down；If threeway ratio adjusting valve third channel
Aperture has reached 100% and second channel aperture has reached 0%, then controls auxiliary electrical heater starting；
If T1 < (T2-T3), and (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), the controller controls compressor shutdown,
Threeway ratio adjusting valve keeps original state, electrical auxiliary heater starting, and humidifier keeps original state；
If T1 < (T2-T3), and 1 < of Φ (Φ 2- Φ 3), the controller controls compressor shutdown, threeway ratio tune
It saves valve and keeps original state, electrical auxiliary heater starting, humidifier starting；
The step S400 is specifically included:
If T4 >=(T5+T6), and Φ 4 >=(Φ 5+ Φ 6), or work as T4 >=(T5+T6), and (Φ 5+ Φ 6) >=Φ 4 >=
When (Φ 5- Φ 6), the controller control compressor is opened, and the third channel aperture of threeway ratio adjusting valve is minimum and second is logical
Road aperture is maximum, and auxiliary electrical heater is shut down, and humidifier is shut down；
If T4 >=(T5+T6), and 4 < of Φ (Φ 5- Φ 6), the controller control compressor is opened, threeway ratio tune
It saves the third channel aperture minimum of valve and second channel aperture is maximum, electrical auxiliary heater is shut down, humidifier starting；
If (T5+T6) >=T4 >=(T5-T6), and Φ 4 >=(Φ 5+ Φ 6), the controller control compressor is opened, three
The third channel aperture of logical ratio adjusting valve is opened big and second channel aperture and is reduced, and electrical auxiliary heater is shut down, and humidifier is shut down；
(if T5+T6) >=T4 >=(T5-T6), and (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6), the compressor, threeway
Ratio adjusting valve, electrical auxiliary heater and humidifier keep original state；
If (T5+T6) >=T4 >=(T5-T6), and 4 < of Φ (Φ 5- Φ 6), the compressor, threeway ratio adjusting valve and
Electrical auxiliary heater keeps original state, the controller control humidifier starting；
If T4 < (T5-T6), and Φ 4 >=(Φ 5+ Φ 6), the controller control compressor is opened, threeway ratio tune
The third channel aperture for saving valve increases and second channel aperture reduces, and humidifier is shut down；If the third of threeway ratio adjusting valve
Channel aperture has reached 100% and second channel aperture has reached 0%, then controls electrical auxiliary heater starting；
If T4 < (T5-T6), and (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6), the controller control compression is shut down, three
Logical ratio adjusting valve keeps original state, and electrical auxiliary heater starting is adjusted, and humidifier keeps original state；
If T4 < (T5-T6), and 4 < of Φ (Φ 5- Φ 6), the controller control compression is shut down, threeway proportion adjustment
Valve keeps original state, electrical auxiliary heater starting, humidifier starting.
In the control method of the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the adjusting side of the electrical auxiliary heater
Formula is multistage start stop mode, and in the case where the electrical auxiliary heater is opened, the electrical auxiliary heater is divided into N grades, and M is to need
The series of starting, the N and M are the positive integer more than or equal to 2, and the specific regulative mode of the electrical auxiliary heater is as follows:
As T1 < (T2-T3)/N × M, or as T4 < (T5-T6)/N × M, the electrical auxiliary heater opens M
Grade；
As (T2+T3)/N × M >=T1 >=(T2-T3)/N*M, or as (T5+T3)/N × M >=T4 >=(T5-T6)/N
When × M, the auxiliary electrical heater keeps the series of original unlatching；
As T1 >=(T2+ T3)/N × M, or as T4 >=(T5+T6)/N × M, the auxiliary electrical heater closes (N-
M) grade.
In the control method of the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the adjusting side of the electrical auxiliary heater
Formula is step-less adjustment, and regulative mode is specific as follows:
As T1 < (T2-T3), or as T4 < (T5-T6), the electrical auxiliary heater improves heating amount；
The auxiliary electricity adds as (T2+ T3) >=T1 >=(T2-T3), or as (T5+ T6) >=T4 >=(T5-T6)
Hot device keeps original heating amount；
As T1 >=(T2+T3), or as T4 >=(T5+T6), the electrical auxiliary heater reduces heating amount.
In the control method of the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the regulative mode of the humidifier is specific
Are as follows:
As 1 < of Φ (Φ 2- Φ 3), or as 4 < of Φ (Φ 5- Φ 6), the humidifier improves humidification amount；
As (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), or as (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6), institute
It states humidifier and keeps original state；
As Φ 1 >=(Φ 2+ Φ 3), or as Φ 4 >=(Φ 5+ Φ 6), the humidifier reduces humidification amount.
The utility model has the advantages that
It is cold by infinitely adjusting the present invention provides a kind of control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit
Freeze the aperture that water flow is adjusted, guarantees Compressor Discharge Pressure within safe range, by adjusting threeway ratio adjusting valve
The operating condition of aperture, compressor, humidifier and pressure fan reaches the accurate control of constant temperature and humidity.
Detailed description of the invention
Fig. 1 is the operation principle schematic diagram of shunt water-cooling type thermostatic and humidistatic air conditioning unit provided by the invention.
Fig. 2 is the control principle block diagram of shunt water-cooling type thermostatic and humidistatic air conditioning unit provided by the invention.
Fig. 3 is the control method flow diagram of shunt water-cooling type thermostatic and humidistatic air conditioning unit provided by the invention.
Specific embodiment
The present invention provides a kind of control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit, for make the purpose of the present invention,
Technical solution and effect are clearer, clear, and the present invention is described in more detail as follows in conjunction with drawings and embodiments.It should
Understand, described herein specific examples are only used to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, a kind of shunt water-cooling type thermostatic and humidistatic air conditioning unit provided by the invention.Arrow in Fig. 1 indicates
The flow direction of air or refrigerant.
The shunt water-cooling type thermostatic and humidistatic air conditioning unit includes compressor 101, expansion valve 105 and evaporator 106, is also wrapped
It includes humidifier 205, pressure fan 206, the threeway ratio adjusting valve 109 connecting with the compressor outlet and is separately connected institute
State the water-cooled condenser 102 and reheater condenser 103 of threeway proportion adjustment valve outlet；The outlet of the water-cooled condenser 102 and
The outlet of reheater condenser 103 is connected in parallel to the entrance of expansion valve 105, and the outlet of the expansion valve 105 is sequentially connected evaporation
The import of device 106 and compressor 101；The evaporator 106, reheater condenser 103, humidifier 205 and pressure fan 206 are in institute
It states and is set gradually in the shell (being not drawn into figure) of air conditioner by air-flow direction；The water-cooled condenser 102 passes through water inlet
Pipeline 1021 and outlet conduit 1022 connect external refrigerating system water, and a flow is provided on the water inlet line or outlet conduit and is adjusted
Valve 1023, for adjusting the flow for entering the chilled water to exchange heat in water-cooled condenser, so as to the condensation to the water-cooled condenser
Effect is adjusted.When work, the shunt regulating of threeway ratio adjusting valve 10 is passed through by compressed refrigerant, separately flows into water
It is condensed in cool condenser 102 and reheater condenser 103, condensed refrigerant is logical in water-cooled condenser and reheater condenser
It crosses after expansion valve 105 expands to enter in evaporator 106 and exchange heat, return again to the entrance of compressor 101, form circulation.It is blowing
Under the action of machine 206, air is inhaled into from the return air inlet of air conditioner and by evaporator, inhales since refrigerant carries in evaporator
Thermal evaporation, so that air obtains cool-down dehumidification, cool-down dehumidification treated air is further across reheater condenser, due to refrigeration
Agent exothermic condensation in reheater condenser carries out heating treatment to air to realize, and air adds further across dehumidifier
The requirement for reaching constant temperature and humidity after wet process is sent out from the air outlet of air-conditioning by pressure fan pressurization.It can be seen that in the present invention
Reheater condenser realize by refrigerant carry heat be used to heat air, instead of in the prior art pass through high-power electricity
Heater heats air, not only energy conservation and environmental protection, it is thus also avoided that security risk when high-power electric heater is run.By using three
Logical ratio adjusting valve control enters the refrigerant flow in water-cooled condenser and reheater condenser, it is ensured that at air heating
The accurate control of reason.Further, since water-cooled condenser exchange capability of heat is strong, when refrigerant flow required in reheater condenser is smaller
When, i.e., when refrigerant is mainly condensed by water-cooled condenser, chilled water still can be condensed refrigerant, guarantee that air conditioner is normally transported
Row.
Further, the shunt water-cooling type thermostatic and humidistatic air conditioning unit further includes an electrical auxiliary heater 205, this is auxiliary
Electric heater is helped to be set between reheater condenser and humidifier, after air heats by reheater condenser, this is auxiliary
It helps heater further to heat adjusting to air, therefore improves the air conditioner to the degree of regulation of air themperature.
Further, it is additionally provided with air filter 201 at the air conditioner return air inlet, i.e. air first passes around air mistake
Filter filters to form clean air, subsequently into air-conditioner housing inside, therefore improves the sky being finally discharged by air outlet
The cleanliness of gas.
Further, the outlet conduit of the reheater condenser and the outlet conduit of water-cooled condenser are connected in parallel to a storage
Flow container 104, the outlet of the fluid reservoir connect the import of the expansion valve 105.Liquid from reheater condenser and water-cooled condenser
State refrigerant enters in fluid reservoir, then passes through expansion valve flow restriction control and travels further into evaporator, i.e., so that entering evaporation
The available control of the flow of the liquid refrigerant of device 106 ensure that air by can effectively be cooled down, be removed when evaporator
Wet purpose.
Further, in the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the outlet conduit of the reheater condenser
With a check valve 1041, the inlet pipeline and outlet of the compressor are respectively arranged on the outlet conduit of water-cooled condenser
It is respectively arranged with a non-return valve 111 on road, therefore ensure that refrigerant one-way flow in the circulatory system, it is existing to avoid refluence
The generation of elephant improves the operational reliability of air conditioner.
For the ease of to compressor inlet and outlet pressure monitoring and according to pressure change make corresponding control with
Guarantee that compressor operates normally, a pressure switch is respectively arranged on the inlet pipeline and outlet conduit of the compressor
131 and pressure gauge 121, a pressure sensor 301 is additionally provided on the compressor outlet pipeline.
Referring to Fig. 2, being arranged at the return air inlet of the air conditioner in the shunt water-cooling type thermostatic and humidistatic air conditioning unit
There are the first temperature sensor 302 and the first humidity sensor 303, second temperature sensing is provided at the air outlet of the air conditioner
Device 304 and the second humidity sensor 305；Specifically, the compressor 101, pressure fan 206, humidifier 205, auxiliary heater
204, flow control valve 1023, pressure switch 111, the first temperature sensor 302, the first humidity sensor 303, second temperature pass
Sensor 304 and the second humidity sensor 305 are separately connected the sensor data acquisition system 31 of the air conditioner and further connect
Connect controller 30.Air conditioner passes what each temperature sensor, humidity sensor and pressure sensor 301 were fed back according to above-mentioned pressure
Testing result sends corresponding instruction to compressor, pressure fan, humidifier, auxiliary heater and flow control valve, to control
Air is adjusted with carrying out real-time constant temperature and humidity, and ensure that compressor inlet and outlet pressure are normal, improves air-conditioning
Reliability.
In the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the humidifier be electrode humidifier, electric heating humidifier,
One of dry flue gas humidifier, wet-membrane humidifier and high-pressure micro mist humidifier.
The shunt water-cooling type thermostatic and humidistatic air conditioning unit, the regulative mode of the electrical auxiliary heater are multistage adjust
Or step-less adjustment.
In conclusion passing through threeway proportion adjustment the present invention provides a kind of shunt water-cooling type thermostatic and humidistatic air conditioning unit
Compressed refrigerant is branched to condenser in water-cooled condenser and reheater condenser by valve, and wherein reheater condenser refrigerant is put
Heat is for heating air, and compared with prior art, the reheater condenser is instead of high-power electric heater, so that the air conditioner is more
Add energy conservation and environmental protection, runs safer.By the way that an auxiliary heater is arranged between reheater condenser and humidifier, realize
Adjusting is further heated to air, improves the precision to air temperature modification.
The present invention also provides the control methods of above-mentioned shunt water-cooling type thermostatic and humidistatic air conditioning unit, fixed for the ease of illustrating
The channel that adopted threeway ratio adjusting valve is connect with compressor is first passage, threeway ratio adjusting valve leads to what water-cooled condenser connected
Road is that the channel of second channel, threeway ratio adjusting valve and reheater condenser even is third channel.The control method is specific
The following steps are included:
S100, preset compressor safety exhaust pressure P2, return air temperature T2, return air temperature in the controller of the air conditioner
Degree span of control limit of control T3, it return air humidity Φ 2, return air humid control precision Φ 3, supply air temperature T5, supply air temperature span of control limit of control T6, send
Wind moisture is Φ 5 and blasting humidity span of control limit of control is Φ 6；
S200, the pressure sensor for being set to compressor outlet pipeline detect actual exhaust air pressure P1 and feed back to control
Device, controller make comparisons P1 with P2, infinitely adjusted according to comparison result the aperture of the flow control valve of water-cooled condenser with
The flow of chilled water is controlled, until P1 is greater than P2；The controller also judges if current constant temperature and humidity controls target as air-conditioning
Air themperature at machine return air inlet thens follow the steps S300, if current constant temperature and humidity control target is at air conditioner air outlet
Air themperature thens follow the steps S400；
S300, the first temperature sensor being set at the air conditioner return air inlet and the first humidity sensor detect respectively
The actual temperature T1 and actual humidity Φ 1 of air and it will test result at return air inlet and feed back to the controller, the controller
T1 is made comparisons with (T2+T3) and (T2-T3), and the controller makees Φ 1 and (Φ 2+ Φ 3) and (Φ 2- Φ 3)
Compare, according to above-mentioned comparison result, the controller sends corresponding instruction control threeway ratio adjusting valve respectively, auxiliary adds
The operating status of hot device and humidifier is until air reaches constant temperature and humidity at return air inlet；
S400, the second temperature sensor being set at the air conditioner air outlet and the second humidity sensor detect respectively
The actual temperature T4 and actual humidity Φ 4 of air and it will test result at air outlet and feed back to the controller, the controller
T4 is made comparisons with (T5+T6) and (T5-T6), and the controller makees Φ 4 and (Φ 5+ Φ 6) and (Φ 5- Φ 6)
Compare, according to above-mentioned comparison result, the controller sends corresponding instruction control threeway ratio adjusting valve respectively, auxiliary adds
The operating status of hot device and humidifier is until air reaches constant temperature and humidity at air outlet.
In the control method of the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the step S300 is specifically included:
If T1 >=(T2+T3), and Φ 1 >=(Φ 2+ Φ 3), or work as T1 >=(T2+T3), and (Φ 2+ Φ 3) >=Φ 1 >=
When (Φ 2- Φ 3), the controller control compressor is opened, and the third channel aperture of threeway ratio adjusting valve is minimum and second is logical
Road aperture is maximum, and electrical auxiliary heater is shut down, and humidifier is shut down；
If T1 >=(T2+T3), and 1 < of Φ (Φ 2- Φ 3), the controller control compressor is opened, threeway ratio tune
It saves the third channel aperture minimum of valve and second channel aperture is maximum, electrical auxiliary heater is shut down, humidifier starting；
If (T2+T3) >=T1 >=(T2-T3), and Φ 1 >=(Φ 2+ Φ 3), the controller control compressor is opened, three
The third channel aperture of logical ratio adjusting valve increases and second channel aperture reduces, and auxiliary electrical heater is shut down, and humidifier is shut down；
(if T2+T3) >=T1 >=(T2-T3), and (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), the compressor, threeway
Ratio adjusting valve, electrical auxiliary heater and humidifier keep original state；
If (T2+T3) >=T1 >=(T2-T3), and 1 < of Φ (Φ 2- Φ 3), the compressor, threeway ratio adjusting valve and
Electrical auxiliary heater keeps original state, the controller control humidifier starting；
If T1 < (T2-T3), and Φ 1 >=(Φ 2+ Φ 3), the controller control compressor is opened, threeway ratio tune
It saves the increase of valve third channel aperture and second channel aperture reduces, humidifier is shut down；If threeway ratio adjusting valve third channel
Aperture has reached 100% and second channel aperture has reached 0%, then controls auxiliary electrical heater starting；
If T1 < (T2-T3), and (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), the controller controls compressor shutdown,
Threeway ratio adjusting valve keeps original state, electrical auxiliary heater starting, and humidifier keeps original state；
If T1 < (T2-T3), and 1 < of Φ (Φ 2- Φ 3), the controller controls compressor shutdown, threeway ratio tune
It saves valve and keeps original state, electrical auxiliary heater starting, humidifier starting；
The step S400 is specifically included:
If T4 >=(T5+T6), and Φ 4 >=(Φ 5+ Φ 6), or work as T4 >=(T5+T6), and (Φ 5+ Φ 6) >=Φ 4 >=
When (Φ 5- Φ 6), the controller control compressor is opened, and the third channel aperture of threeway ratio adjusting valve is minimum and second is logical
Road aperture is maximum, and auxiliary electrical heater is shut down, and humidifier is shut down；
If T4 >=(T5+T6), and 4 < of Φ (Φ 5- Φ 6), the controller control compressor is opened, threeway ratio tune
It saves the third channel aperture minimum of valve and second channel aperture is maximum, electrical auxiliary heater is shut down, humidifier starting；
If (T5+T6) >=T4 >=(T5-T6), and Φ 4 >=(Φ 5+ Φ 6), the controller control compressor is opened, three
The third channel aperture of logical ratio adjusting valve is opened big and second channel aperture and is reduced, and electrical auxiliary heater is shut down, and humidifier is shut down；
(if T5+T6) >=T4 >=(T5-T6), and (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6), the compressor, threeway
Ratio adjusting valve, electrical auxiliary heater and humidifier keep original state；
If (T5+T6) >=T4 >=(T5-T6), and 4 < of Φ (Φ 5- Φ 6), the compressor, threeway ratio adjusting valve and
Electrical auxiliary heater keeps original state, the controller control humidifier starting；
If T4 < (T5-T6), and Φ 4 >=(Φ 5+ Φ 6), the controller control compressor is opened, threeway ratio tune
The third channel aperture for saving valve increases and second channel aperture reduces, and humidifier is shut down；If the third of threeway ratio adjusting valve
Channel aperture has reached 100% and second channel aperture has reached 0%, then controls electrical auxiliary heater starting；
If T4 < (T5-T6), and (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6), the controller control compression is shut down, three
Logical ratio adjusting valve keeps original state, and electrical auxiliary heater starting is adjusted, and humidifier keeps original state；
If T4 < (T5-T6), and 4 < of Φ (Φ 5- Φ 6), the controller control compression is shut down, threeway proportion adjustment
Valve keeps original state, electrical auxiliary heater starting, humidifier starting.
In the control method of the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the adjusting side of the electrical auxiliary heater
Formula is multistage start stop mode, and in the case where the electrical auxiliary heater is opened, the electrical auxiliary heater is divided into N grades, and M is to need
The series of starting, the N and M are the positive integer more than or equal to 2, and the specific regulative mode of the electrical auxiliary heater is as follows:
As T1 < (T2-T3)/N × M, or as T4 < (T5-T6)/N × M, the electrical auxiliary heater opens M
Grade；
As (T2+T3)/N × M >=T1 >=(T2-T3)/N*M, or as (T5+T3)/N × M >=T4 >=(T5-T6)/N
When × M, the auxiliary electrical heater keeps the series of original unlatching；
As T1 >=(T2+ T3)/N × M, or as T4 >=(T5+T6)/N × M, the auxiliary electrical heater closes (N-
M) grade.
In the control method of the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the adjusting side of the electrical auxiliary heater
Formula is step-less adjustment, and regulative mode is specific as follows:
As T1 < (T2-T3), or as T4 < (T5-T6), the electrical auxiliary heater improves heating amount；
The auxiliary electricity adds as (T2+ T3) >=T1 >=(T2-T3), or as (T5+ T6) >=T4 >=(T5-T6)
Hot device keeps original heating amount；
As T1 >=(T2+T3), or as T4 >=(T5+T6), the electrical auxiliary heater reduces heating amount.
In the control method of the shunt water-cooling type thermostatic and humidistatic air conditioning unit, the regulative mode of the humidifier is specific
Are as follows:
As 1 < of Φ (Φ 2- Φ 3), or as 4 < of Φ (Φ 5- Φ 6), the humidifier improves humidification amount；
As (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), or as (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6), institute
It states humidifier and keeps original state；
As Φ 1 >=(Φ 2+ Φ 3), or as Φ 4 >=(Φ 5+ Φ 6), the humidifier reduces humidification amount.
In conclusion the aperture that control method provided by the present invention is adjusted by infinitely adjusting chilled-water flow, is protected
Compressor Discharge Pressure is demonstrate,proved within safe range, by the aperture of adjusting threeway ratio adjusting valve, compressor, humidifier and is sent
The operating condition of blower reaches the accurate control of constant temperature and humidity.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (4)
1. a kind of control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit, which comprises the following steps:
S100, preset compressor safety exhaust pressure P2, return air temperature T2, return air temperature control in the controller of the air conditioner
Amplitude T3 processed, return air humidity Φ 2, return air humid control precision Φ 3, supply air temperature T5, supply air temperature span of control limit of control T6, air-supply are wet
Degree is Φ 5 and blasting humidity span of control limit of control is Φ 6；
S200, the pressure sensor for being set to compressor outlet pipeline detect actual exhaust air pressure P1 and feed back to controller,
Controller makes comparisons P1 with P2, adjusts the aperture of the flow control valve of water-cooled condenser infinitely according to comparison result to control
The flow of chilled water, until P1 is greater than P2；The controller also judges if current constant temperature and humidity control target is returned as air conditioner
Air themperature at air port thens follow the steps S300, if current constant temperature and humidity control target is the air at air conditioner air outlet
Temperature thens follow the steps S400；
S300, the first temperature sensor being set at the air conditioner return air inlet and the first humidity sensor detect return air respectively
The actual temperature T1 and actual humidity Φ 1 of air and it will test result at mouthful and feed back to the controller, the controller is by T1
It makes comparisons with (T2+T3) and (T2-T3), and the controller makes comparisons Φ 1 with (Φ 2+ Φ 3) and (Φ 2- Φ 3),
According to above-mentioned comparison result, the controller sends corresponding instruction control threeway ratio adjusting valve, auxiliary heater respectively
And the operating status of humidifier is until air reaches constant temperature and humidity at return air inlet；
S400, the second temperature sensor being set at the air conditioner air outlet and the second humidity sensor detect air-supply respectively
The actual temperature T4 and actual humidity Φ 4 of air and it will test result at mouthful and feed back to the controller, the controller is by T4
It makes comparisons with (T5+T6) and (T5-T6), and the controller makes comparisons Φ 4 with (Φ 5+ Φ 6) and (Φ 5- Φ 6),
According to above-mentioned comparison result, the controller sends corresponding instruction control threeway ratio adjusting valve, auxiliary heater respectively
And the operating status of humidifier is until air reaches constant temperature and humidity at air outlet；
The step S300 is specifically included:
If T1 >=(T2+T3), and Φ 1 >=(Φ 2+ Φ 3), or would work as T1 >=(T2+T3), and (Φ 2+ Φ 3) >=Φ 1 >=(Φ
2- Φ 3) when, the controller control compressor is opened, the third channel aperture minimum and second channel of threeway ratio adjusting valve
Aperture is maximum, and electrical auxiliary heater is shut down, and humidifier is shut down；
If T1 >=(T2+T3), and 1 < of Φ (Φ 2- Φ 3), the controller control compressor is opened, threeway ratio adjusting valve
Third channel aperture it is minimum and second channel aperture is maximum, electrical auxiliary heater is shut down, humidifier starting；
If (T2+T3) >=T1 >=(T2-T3), and Φ 1 >=(Φ 2+ Φ 3), the controller control compressor is opened, threeway ratio
The third channel aperture of example regulating valve increases and second channel aperture reduces, and auxiliary electrical heater is shut down, and humidifier is shut down；
(if T2+T3) >=T1 >=(T2-T3), and (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), the compressor, threeway ratio
Regulating valve, electrical auxiliary heater and humidifier keep original state；
(if T2+T3) >=T1 >=(T2-T3), and 1 < of Φ (Φ 2- Φ 3), the compressor, threeway ratio adjusting valve and auxiliary
Electric heater keeps original state, the controller control humidifier starting；
If T1 < (T2-T3), and Φ 1 >=(Φ 2+ Φ 3), the controller control compressor is opened, threeway ratio adjusting valve
Third channel aperture increases and second channel aperture reduces, and humidifier is shut down；If threeway ratio adjusting valve third channel aperture
It has reached 100% and second channel aperture has reached 0%, then control auxiliary electrical heater starting；
If T1 < (T2-T3), and (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), the controller controls compressor shutdown, threeway
Ratio adjusting valve keeps original state, electrical auxiliary heater starting, and humidifier keeps original state；
If T1 < (T2-T3), and 1 < of Φ (Φ 2- Φ 3), the controller controls compressor shutdown, threeway ratio adjusting valve
Keep original state, electrical auxiliary heater starting, humidifier starting；
The step S400 is specifically included:
If T4 >=(T5+T6), and Φ 4 >=(Φ 5+ Φ 6), or would work as T4 >=(T5+T6), and (Φ 5+ Φ 6) >=Φ 4 >=(Φ
5- Φ 6) when, the controller control compressor is opened, the third channel aperture minimum and second channel of threeway ratio adjusting valve
Aperture is maximum, and auxiliary electrical heater is shut down, and humidifier is shut down；
If T4 >=(T5+T6), and 4 < of Φ (Φ 5- Φ 6), the controller control compressor is opened, threeway ratio adjusting valve
Third channel aperture it is minimum and second channel aperture is maximum, electrical auxiliary heater is shut down, humidifier starting；
If (T5+T6) >=T4 >=(T5-T6), and Φ 4 >=(Φ 5+ Φ 6), the controller control compressor is opened, threeway ratio
The third channel aperture of example regulating valve is opened big and second channel aperture and is reduced, and electrical auxiliary heater is shut down, and humidifier is shut down；
(if T5+T6) >=T4 >=(T5-T6), and (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6), the compressor, threeway ratio
Regulating valve, electrical auxiliary heater and humidifier keep original state；
(if T5+T6) >=T4 >=(T5-T6), and 4 < of Φ (Φ 5- Φ 6), the compressor, threeway ratio adjusting valve and auxiliary
Electric heater keeps original state, the controller control humidifier starting；
If T4 < (T5-T6), and Φ 4 >=(Φ 5+ Φ 6), the controller control compressor is opened, threeway ratio adjusting valve
Third channel aperture increase and second channel aperture reduce, humidifier shut down；If the third channel of threeway ratio adjusting valve
Aperture has reached 100% and second channel aperture has reached 0%, then controls electrical auxiliary heater starting；
If T4 < (T5-T6), and (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6), the controller control compression is shut down, threeway ratio
Example regulating valve keeps original state, and electrical auxiliary heater starting is adjusted, and humidifier keeps original state；
If T4 < (T5-T6), and 4 < of Φ (Φ 5- Φ 6), the controller control compression is shut down, and threeway ratio adjusting valve is protected
Hold original state, electrical auxiliary heater starting, humidifier starting.
2. the control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit according to claim 1, which is characterized in that described
The regulative mode of electrical auxiliary heater is multistage start stop mode, in the case where the electrical auxiliary heater is opened, the auxiliary
Electric heater is divided into N grades, and M is the series that need to start, and the N and M are the positive integer more than or equal to 2, the auxiliary electrical heater
The specific regulative mode of device is as follows:
As T1 < (T2-T3)/N × M, or as T4 < (T5-T6)/N × M, the electrical auxiliary heater opens M grades；
As (T2+T3)/N × M >=T1 >=(T2-T3)/N*M, or as (T5+T3)/N × M >=T4 >=(T5-T6)/N × M
When, the auxiliary electrical heater keeps the series of original unlatching；
As T1 >=(T2+ T3)/N × M, or as T4 >=(T5+T6)/N × M, the auxiliary electrical heater closes (N-M)
Grade.
3. the control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit according to claim 1, which is characterized in that described
The regulative mode of electrical auxiliary heater is step-less adjustment, and regulative mode is specific as follows:
As T1 < (T2-T3), or as T4 < (T5-T6), the electrical auxiliary heater improves heating amount；
As (T2+ T3) >=T1 >=(T2-T3), or when (T5+ T6) >=T4 >=(T5-T6) Shi Suoshu electrical auxiliary heater
Keep original heating amount；
As T1 >=(T2+T3), or as T4 >=(T5+T6), the electrical auxiliary heater reduces heating amount.
4. the control method of shunt water-cooling type thermostatic and humidistatic air conditioning unit according to claim 1, which is characterized in that described
The regulative mode of humidifier specifically:
As 1 < of Φ (Φ 2- Φ 3), or as 4 < of Φ (Φ 5- Φ 6), the humidifier improves humidification amount；
It is described to add as (Φ 2+ Φ 3) >=Φ 1 >=(Φ 2- Φ 3), or as (Φ 5+ Φ 6) >=Φ 4 >=(Φ 5- Φ 6)
Wet device keeps original state；
As Φ 1 >=(Φ 2+ Φ 3), or as Φ 4 >=(Φ 5+ Φ 6), the humidifier reduces humidification amount.
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| CN113720624B (en) * | 2021-07-22 | 2023-10-27 | 广东申菱环境系统股份有限公司 | Verification system and verification method for heat pump unit |
Citations (3)
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|---|---|---|---|---|
| CN201434457Y (en) * | 2009-07-16 | 2010-03-31 | 上海理工大学 | Constant temperature and humidity unit with two condensers |
| CN102230659A (en) * | 2011-06-02 | 2011-11-02 | 中国电器科学研究院有限公司 | Method for controlling energy-saving precision constant-temperature and constant-humidity air conditioner and air conditioner thereof |
| CN104990146A (en) * | 2015-07-24 | 2015-10-21 | 阿尔西制冷工程技术（北京）有限公司 | Constant-temperature constant-humidity air conditioner |
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2016
- 2016-12-29 CN CN201611248033.3A patent/CN106765965B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201434457Y (en) * | 2009-07-16 | 2010-03-31 | 上海理工大学 | Constant temperature and humidity unit with two condensers |
| CN102230659A (en) * | 2011-06-02 | 2011-11-02 | 中国电器科学研究院有限公司 | Method for controlling energy-saving precision constant-temperature and constant-humidity air conditioner and air conditioner thereof |
| CN104990146A (en) * | 2015-07-24 | 2015-10-21 | 阿尔西制冷工程技术（北京）有限公司 | Constant-temperature constant-humidity air conditioner |
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