CN109140630A - Air handling system, temperature adjustment and humidity adjust control method - Google Patents
Air handling system, temperature adjustment and humidity adjust control method Download PDFInfo
- Publication number
- CN109140630A CN109140630A CN201810929770.2A CN201810929770A CN109140630A CN 109140630 A CN109140630 A CN 109140630A CN 201810929770 A CN201810929770 A CN 201810929770A CN 109140630 A CN109140630 A CN 109140630A
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- China
- Prior art keywords
- controller
- handling system
- air handling
- heater
- object space
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0003—Exclusively-fluid systems
-
- 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
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
Abstract
The present invention provides a kind of air handling system, temperature adjustment and humidity adjustment control method.The air handling system, including refrigeration unit, concentrate cold source case, end heat-exchanger rig, the end heat-exchanger rig includes heat exchanger, heater, the heat exchanger is for freezing to object space, the heater is for heating object space, there is the first refrigerating medium circulation line between the refrigeration unit and the concentration cold source case, there is the second refrigerating medium circulation line between the concentration cold source case and the heat exchanger.A kind of air handling system, temperature adjustment and humidity according to the present invention adjust control method, can be improved the temperature of simulated environmental test outside, keep the Work condition analogue scene of simulation laboratory more abundant, are conducive to carry out full working scope detection to the performance of air conditioner.
Description
Technical field
The invention belongs to air-conditioning technique fields, and in particular to a kind of air handling system, temperature adjustment and humidity tune
Whole control method.
Background technique
Environmental simulation laboratory concentrates cold source system to need to carry out temperature adjusting, refrigeration requirement to multiple and different regions
Greatly, temperature regulating range is wide.Generally concentration cold source engineering refrigerating medium set temperature is certain, and this technology is lacked there are following
It falls into:
(1) the constant adjustable extent for limiting use environment operating condition of refrigerating medium set temperature namely existing concentration cold source
The adjustment range is small for system temperature, cannot especially heat up to simulated environment, is not able to satisfy the full working scope measurement of household air-conditioner detection；
(2) environment refrigeration requirement variation mainly carrys out reality by electronic valve regulation refrigerating medium flow that end radiator has
It is existing, and motor-driven valve flow curve is generally non-linear, degree of regulation is low；
(3) cold source system is concentrated to lack the adjustment function of humidity.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that providing a kind of air handling system, temperature adjustment and humidity tune
Whole control method can be improved the temperature of simulated environmental test outside, keep the Work condition analogue scene of simulation laboratory richer
Richness is conducive to carry out full working scope detection to the performance of air conditioner.
To solve the above-mentioned problems, the present invention provides a kind of air handling system, including refrigeration unit, concentrate cold source case,
End heat-exchanger rig, the end heat-exchanger rig include heat exchanger, heater, and the heat exchanger is used for object space system
Cold, the heater has first for heating to object space between the refrigeration unit and the concentration cold source case
Refrigerating medium circulation line has the second refrigerating medium circulation line between the concentration cold source case and the heat exchanger.
Preferably, the second refrigerating medium circulation line includes for the refrigerating medium in the concentration cold source case to be transported in
The second inlet pipe in the heat exchanger is provided with the second refrigerant pump in second inlet pipe.
Preferably, second refrigerant pump is variable pump.
Preferably, the air handling system further includes the first controller for controlling the heater or variable pump,
First controller and the control of the heater or variable pump connect.
Preferably, the air handling system further includes frequency converter, the input terminal and output end of the frequency converter respectively with
First controller, variable pump control connection.
Preferably, the end heat-exchanger rig further includes humidifying component, is adjusted for the humidity to object space.
Preferably, the air handling system further includes the second controller for controlling the humidifying component, and described
Two controllers and humidifying component control connect.
Preferably, first controller and/or second controller are PID controller.
Preferably, the end heat-exchanger rig further includes air stream drives component.
The present invention also provides a kind of temperature to adjust control method, for adjusting the object space of above-mentioned air handling system
Temperature includes the following steps:
When the air handling system includes first controller, the real time temperature T1 of object space is obtained, by institute
It states T1 to be compared to form first control signal with preset temperature T0, first controller is according to the first control signal control
It makes the heater start and stop or the control variable pump changes cold medium flux.
Preferably, as T1 > T0, first controller controls the variable pump and increases flow；As T1 < T0, institute
It states the first controller and controls the heater starting heating；As T1=T0, the variable pump discharge is constant, and the heater stops
Only operate.
The present invention also provides a kind of humidity to adjust control method, for adjusting the object space of above-mentioned air handling system
Humidity includes the following steps:
When the air handling system includes the second controller, the real-time humidity M1 of object space is obtained, by institute
It states M1 to be compared to form second control signal with default humidity M0, the second controller is according to the second control signal control
Make the humidifying component start and stop.
Preferably, as M1 < M0, the second controller starts the humidifying component and is humidified；As M1≤M0,
The humidifying component shuts down.
A kind of air handling system, temperature adjustment and humidity provided by the invention adjust control method, due at the end
Heater is increased in the heat-exchanger rig of end, to make the air handling system that can meet the cooling condition to object space
Demand also can satisfy the heating condition demand to object space, keeps the Work condition analogue scene of simulation laboratory more abundant, has
Full working scope detection is carried out conducive to the performance to air conditioner, through actual verification, using the air handling system of the technical solution in ring
In the simulation laboratory of border, reachable -25 DEG C of each region minimum temperature in laboratory outside can be realized, maximum temperature is up to 60 DEG C.
Detailed description of the invention
Fig. 1 is the schematic illustration of the air handling system of the embodiment of the present invention.
Appended drawing reference indicates are as follows:
1, refrigeration unit；10, the first inlet pipe；11, the first refrigerant pump；12, first filter；13, the first liquid back pipe
Road；2, cold source case is concentrated；20, the second inlet pipe；21, the second refrigerant pump；22, the second filter；23, the second liquid back pipe road；
24, triple valve；25, sewage pipe；3, end heat-exchanger rig；31, heat exchanger；32, heater；33, humidifying component；34, air-flow drives
Dynamic component；4, the first controller；41, temperature sensor；5, second controller；51, humidity sensor；6, frequency converter；7, third
Controller；71, flow sensor.
Specific embodiment
It is shown in Figure 1, according to an embodiment of the invention, providing a kind of air handling system, it is particularly suitable for environment mould
It is quasi-, including refrigeration unit 1, concentration cold source case 2, end heat-exchanger rig 3, the end heat-exchanger rig 3 include heat exchanger 31, heating
Device 32, the heat exchanger 31 is for freezing to object space, and the heater 32 is for heating object space, institute
State between refrigeration unit 1 and the concentration cold source case 2 have the first refrigerating medium circulation line, the concentration cold source case 2 with it is described
There is the second refrigerating medium circulation line between heat exchanger 31.In the technical solution, due to increasing in the end heat-exchanger rig 3
Heater 32 can also expire to make the air handling system that can meet the cooling condition demand to object space
Foot keeps the Work condition analogue scene of simulation laboratory more abundant, is conducive to air conditioner to the heating condition demand of object space
Performance carry out full working scope detection, through actual verification, using the air handling system of the technical solution in environmental simulation test room
In, it can be realized reachable -25 DEG C of each region minimum temperature in laboratory outside, maximum temperature is up to 60 DEG C.
In order to further increase the refrigerant long-distance diffusion energy of the air handling system and the refrigerating efficiency of system, mention
The mobilization dynamic of refrigerant of the eminence in circulation line is particularly important, it is preferable that the first refrigerating medium circulation line packet
It includes the first inlet pipe 10 for the refrigerating medium in the refrigeration unit 1 to be transported in the concentration cold source case 2 and incites somebody to action
First liquid back pipe road 13 of the refrigerating medium reflux concentrated in cold source case 2 in the refrigeration unit 1, first inlet tube
The first refrigerant pump 11 is provided in road 10；Further, the second refrigerating medium circulation line includes for by the concentration
Refrigerating medium in cold source case 2 is transported in the second inlet pipe 20 in the heat exchanger 31, sets in second inlet pipe 20
It is equipped with the second refrigerant pump 21, due to being correspondingly arranged described first in first inlet pipe 10 and the second inlet pipe 20
Refrigerant pump 11, the second refrigerant pump 21, to accelerate transmission speed of the refrigerating medium in pipeline, it is even more important that further
The demand for reducing the pumpability to the air compressor in the refrigeration unit 1 makes the refrigeration unit 1 in terms of type selecting
It is more flexible, while the acquisition cost of refrigeration unit 1 is substantially reduced, the refrigeration unit 1 preferably uses existing brine machine
Group is adopted as the brine unit of commercially available part, can simplify the design process of the air handling system.Preferably, described second
Refrigerant pump 21 is variable pump, preferably automatically controlled electricity pump.
In order to guarantee the accurate quick adjustment control to target environment temperature, it is preferable that the air handling system is also wrapped
Include the first controller 4 for controlling the heater 32 or variable pump, first controller 4 and the heater 32 or change
Amount pump control connection, further, first controller 4 uses PID controller.As described above, second refrigerant pump
21 be preferably variable pump, at this point, frequency converter 6, the input of the frequency converter 6 is arranged in adaptability in the air handling system
End and output end are connected with first controller 4, variable pump control respectively, can accurately control second refrigerant pump 21
Revolving speed, and then realize the accurate adjustment of cold medium flux, it is final to realize being precisely controlled for cryogenic temperature.The heater 32 for example may be used
To be electric heating tube.
In order to simulate the different humidity situation of the object space, it is preferable that the end heat-exchanger rig 3 further includes humidification
Component 33 is adjusted for the humidity to object space, and the humidifying component 33 may include steam electric two-way valve.
In order to guarantee the accurate quick adjustment control to target environment humidity, it is preferable that the air handling system is also wrapped
The second controller 5 for controlling the humidifying component 33 is included, the second controller 5 connects with the humidifying component 33 control
It connects, further, the second controller 5 uses PID controller
Preferably, the end heat-exchanger rig 3 further includes air stream drives component 34, and the air stream drives component 34 is preferably adopted
With fan assembly, so as to have certain temperature in the end heat-exchanger rig 3 and the air-flow of humidity flows out in time, it is improved
Conditioning efficiency.
Further, be additionally provided with first filter 12 in first inlet pipe 10, and/or, described second into
It is additionally provided with the second filter 22 in liquid pipeline 20, the impurity in refrigerating medium can be filtered out in time, be prevented to the refrigeration machine
Group 1 and heat exchanger 31 damage.
The second refrigerating medium circulation line further includes for flowing back the refrigerating medium in the heat exchanger 31 in the collection
The second liquid back pipe road 23 in middle cold source case 2 is additionally provided with triple valve 24 in second inlet pipe 20, so that described second
Refrigerating medium in inlet pipe 20 is selectively circulated in second liquid back pipe road 23, can be by setting triple valve 24
When needing to carry out cooling capacity adjustment to the heat exchanger 31, refrigerating medium excessive in pipeline is subjected to shunting in time and is back to the collection
In middle cold source case 2.The triple valve 24 is preferably Electrocontrolled tee valve, in order to be precisely controlled the aperture of the Electrocontrolled tee valve,
Flow sensor 71 is additionally provided in second inlet pipe 20 of the refrigerant exit side of the Electrocontrolled tee valve, the flow passes
Sensor 71 obtains corresponding flow signal transmission for being measured in real time to the refrigerant exit flow of the Electrocontrolled tee valve
To the third controller 7 with Electrocontrolled tee valve control connection, it is preferable that the third controller 7 is PID controller.
The end heat-exchanger rig 3 is preferably provided multiple, and multiple end heat-exchanger rigs 3 are laid in different mesh respectively
It marks in space, in this way, increasing the air handling system is suitable for subregion air temperature modification, it can be to different targets
Space carries out relatively independent temperature and humidity regulation, to be applicable in the different temperatures moisture requirement of laboratory's detection work.More into
One step, the refrigeration unit is preferably also provided with more, at this point, the concentration cold source case 2 is entire air handling system
Hinge center controls the start and stop number of units of the refrigeration unit, specific aim adjusts the appearance of every unit according to distribution according to need principle
Amount, to achieve the purpose that controlling fast, the wide operating condition of precision height, reaction speed adjusts, is energy-saving；Meanwhile the air conditioning
The corresponding multiple regions of the end heat-exchanger rig 3 of system compare the corresponding region of a system, can reduce occupied area.It is described
Cold source case 2 is concentrated to be additionally provided with sewage pipe 25, the dirt saved bit by bit in the concentration cold source case 2 can be discharged in time.
According to an embodiment of the invention, a kind of temperature adjustment control method is also provided, for adjusting above-mentioned air conditioning system
The temperature of the object space of system, includes the following steps:
When the air handling system includes first controller 4, the real time temperature T1 of object space is obtained, by institute
It states T1 to be compared to form first control signal with preset temperature T0, first controller 4 is according to the first control signal
It controls 32 start and stop of heater or the control variable pump changes cold medium flux, it is to be appreciated that in the object space
Corresponding temperature sensor 41 is set, detection acquisition is carried out to the real time temperature T1 of object space, preset temperature T0 is curable in institute
It states in the first controller 4, certainly, best, first controller 4 uses programmable PID controller.
Specifically, as T1 > T0, first controller 4 controls the variable pump and increases flow；As T1 < T0, institute
It states the first controller 4 and controls the starting of heater 32 heating；As T1=T0, the variable pump discharge is constant, the heating
Device 32 shuts down.
According to an embodiment of the invention, a kind of humidity adjustment control method is also provided, for adjusting above-mentioned air conditioning system
The humidity of the object space of system, includes the following steps:
When the air handling system includes the second controller 5, the real-time humidity M1 of object space is obtained, by institute
It states M1 to be compared to form second control signal with default humidity M0, the second controller 5 is according to the second control signal
Control 33 start and stop of humidifying component, it is to be appreciated that corresponding humidity sensor 51 is set in the object space to mesh
The real-time humidity M1 in mark space carries out detection acquisition, and default humidity M0 is curable in the second controller 5, certainly, best
, the second controller 5 uses programmable PID controller.
Specifically, as M1 < M0, the second controller 5 starts the humidifying component 33 and is humidified；As M1≤M0
When, the humidifying component 33 shuts down.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention
Protect range.
Claims (13)
1. a kind of air handling system, which is characterized in that including refrigeration unit (1), concentrate cold source case (2), end heat-exchanger rig
(3), the end heat-exchanger rig (3) includes heat exchanger (31), heater (32), and the heat exchanger (31) is used for object space
Freeze, the heater (32) is for heating object space, the refrigeration unit (1) and the concentration cold source case
(2) there is the first refrigerating medium circulation line between, have second to carry between the concentration cold source case (2) and the heat exchanger (31)
Refrigerant cycle pipeline.
2. air handling system according to claim 1, which is characterized in that the second refrigerating medium circulation line includes using
In by it is described concentration cold source case (2) in refrigerating medium be transported in the second inlet pipe (20) in the heat exchanger (31), it is described
The second refrigerant pump (21) are provided in second inlet pipe (20).
3. air handling system according to claim 2, which is characterized in that second refrigerant pump (21) is variable pump.
4. air handling system according to claim 3, which is characterized in that further include for controlling the heater (32)
Or the first controller (4) of variable pump, first controller (4) and the heater (32) or variable pump control connect.
5. air handling system according to claim 4, which is characterized in that further include frequency converter (6), the frequency converter
(6) input terminal and output end is connected with first controller (4), variable pump control respectively.
6. air handling system according to claim 5, which is characterized in that the end heat-exchanger rig (3) further includes adding
Wet end part (33), is adjusted for the humidity to object space.
7. according to air handling system described in right as required 6, which is characterized in that further include for controlling the humidifying component
(33) second controller (5), the second controller (5) and the humidifying component (33) control connect.
8. air handling system according to claim 7, which is characterized in that first controller (4) and/or the second control
Device (5) processed is PID controller.
9. air handling system according to claim 1, which is characterized in that the end heat-exchanger rig (3) further includes gas
It flows driving part (34).
10. a kind of temperature adjusts control method, which is characterized in that for adjusting sky as claimed in any one of claims 1-9 wherein
The temperature of the object space of gas regulating system, includes the following steps:
When the air handling system includes the first controller (4), the real time temperature T1 of object space is obtained, it will be described
T1 is compared to form first control signal with preset temperature T0, and first controller (4) is according to the first control signal
It controls the heater (32) start and stop or the control variable pump changes cold medium flux.
11. control method according to claim 10, which is characterized in that as T1 > T0, the first controller (4) control
It makes the variable pump and increases flow；As T1 < T0, first controller (4) controls heater (32) the starting heating；
As T1=T0, the variable pump discharge is constant, and the heater (32) shuts down.
12. a kind of humidity adjusts control method, which is characterized in that for adjusting sky as claimed in any one of claims 1-9 wherein
The humidity of the object space of gas regulating system, includes the following steps:
When the air handling system includes the second controller (5), the real-time humidity M1 of object space is obtained, it will be described
M1 is compared to form second control signal with default humidity M0, and the second controller (5) is according to the second control signal
Control the humidifying component (33) start and stop.
13. control method according to claim 12, which is characterized in that as M1 < M0, the second controller (5) is opened
The humidifying component (33) is moved to be humidified；As M1≤M0, the humidifying component (33) shuts down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929770.2A CN109140630A (en) | 2018-08-15 | 2018-08-15 | Air handling system, temperature adjustment and humidity adjust control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810929770.2A CN109140630A (en) | 2018-08-15 | 2018-08-15 | Air handling system, temperature adjustment and humidity adjust control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109140630A true CN109140630A (en) | 2019-01-04 |
Family
ID=64789597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810929770.2A Pending CN109140630A (en) | 2018-08-15 | 2018-08-15 | Air handling system, temperature adjustment and humidity adjust control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109140630A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332762A (en) * | 2019-08-08 | 2019-10-15 | 兰州真空设备有限责任公司 | Gas nitrogen cycle method for regulating temperature and system |
| CN110595021A (en) * | 2019-10-08 | 2019-12-20 | 苏州惠林节能材料有限公司 | Method for controlling laboratory humidity by adopting temperature sensor |
| CN112930075A (en) * | 2019-12-05 | 2021-06-08 | 株洲中车时代电气股份有限公司 | Frequency converter cooling system, equipment applying frequency converter and cooling control method |
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| CN110332762A (en) * | 2019-08-08 | 2019-10-15 | 兰州真空设备有限责任公司 | Gas nitrogen cycle method for regulating temperature and system |
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| CN112930075A (en) * | 2019-12-05 | 2021-06-08 | 株洲中车时代电气股份有限公司 | Frequency converter cooling system, equipment applying frequency converter and cooling control method |
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