CN107120775A - A kind of subway plant management information system variable air rate supply air system and its control method - Google Patents
A kind of subway plant management information system variable air rate supply air system and its control method Download PDFInfo
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- CN107120775A CN107120775A CN201710516238.3A CN201710516238A CN107120775A CN 107120775 A CN107120775 A CN 107120775A CN 201710516238 A CN201710516238 A CN 201710516238A CN 107120775 A CN107120775 A CN 107120775A
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- 230000003068 static effect Effects 0.000 claims abstract description 28
- 238000007664 blowing Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims 1
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 11
- 238000005265 energy consumption Methods 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 6
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of subway plant management information system variable air rate supply air system and its control method, it is related to building energy conservation and air conditioner ventilation control field, it includes blower fan, air-supply main Electric air valve, electric air volume adjusting valve, main control cabinet, end-of-pipe control cabinet, temperature sensor and static pressure transducer, blower fan is arranged on air-supply main port, air-supply main Electric air valve is arranged on air-supply main, electric air volume adjusting valve is arranged on blowpipe, temperature sensor is set in each subway plant management information system, static pressure transducer is arranged on air-supply main line end, main control cabinet simultaneously and blower fan, air-supply main Electric air valve and static pressure transducer are electrically connected, end-of-pipe control cabinet is electrically connected with electric air volume adjusting valve and temperature sensor simultaneously.Present invention also offers the control method of above variable air rate supply air system.The present invention improves the thermal comfort of subway plant management information system, while realizing the energy-efficient operation of whole distributing system.
Description
Technical field
The invention belongs to building energy conservation and air conditioner ventilation control field, and in particular to a kind of subway plant management information system becomes wind
Measure supply air system and its control method.
Background technology
As China city is constantly developed, key city population is more and more, so as to also promote the hair of subway construction
Exhibition.Subway's air-conditioning system is extremely complex, huge, and the proportion in whole building energy consumption is also increasing.Generally, subway equipment pipe
Reason is simple using air quantity supply air system, this Air-condition system control is determined with room, easy to use.Meanwhile, determine air quantity supply air system by
In the air output of each plant management information system can not be adjusted, so that there is also many drawbacks.Determine air quantity supply air system performance-adjustable
Difference, it is impossible to meet the hommization requirement of different user, so as to greatly reduce the thermal comfort of interior.
Because air conditioning energy consumption accounts for whole building energy consumption more than 60%, therefore air conditioner energy saving seems and become more and more important.According to relevant money
Material statistics, the time of air-conditioning equipment 97% operates in be fluctuated above and below 70% load, therefore can be reduced using air quantity variable air conditioner
Air-conditioning consumes energy, and reaches the purpose of economical operation.According to test, the energy consumption of an air conditioning system with variable is about constant air volume system
70%, if using more preferable control method, its energy-saving effect will be more significant.
Accordingly, it would be desirable to a kind of new subway plant management information system variable air rate supply air system and its control method are developed,
It is asked to meet the hommization requirement of different user, moreover it is possible to energy-efficient operation.
The content of the invention
For the disadvantages described above or Improvement requirement of prior art, wind is become the invention provides a kind of subway plant management information system
Supply air system and its control method are measured, it is intended that using converter technique, meeting the frequent change of room load and local temperature
The requirement of change is spent, the thermal comfort of subway plant management information system is improved, the hommization demand of different user can be met, together
When, realize the energy-efficient operation of whole distributing system.
To achieve the above object, according to one aspect of the present invention, there is provided a kind of subway plant management information system variable air rate
Supply air system, it includes air-supply main and the multiple blowpipes connected with air-supply main, and the connection of each blowpipe is different
Subway plant management information system, it also includes blower fan, main Electric air valve of blowing, electric air volume adjusting valve, main control cabinet, end control
Cabinet processed, temperature sensor and static pressure transducer,
Wherein, blower fan is arranged on air-supply main port, and air-supply main Electric air valve is arranged on air-supply main, and simultaneously
Positioned at fan outlet downstream and blowpipe air inlet upstream, air-supply main Electric air valve is used for by being opened and closed itself valve port
Air force in control air-supply main,
Electric air volume adjusting valve is arranged on blowpipe, for controlling blowpipe by adjusting itself valve port opening
Middle air force,
Temperature sensor is set in each subway plant management information system, the reality for measuring each subway plant management information system
Border temperature, static pressure transducer is arranged on air-supply main line end, for measuring the blast size in air-supply main,
Main control cabinet is electrically connected with blower fan, air-supply main Electric air valve and static pressure transducer simultaneously, for according to quiet
The operating frequency of blast size regulation blower fan and start and stop air-supply main Electric air valve in the air-supply main of pressure sensor feedback,
End-of-pipe control cabinet is electrically connected with electric air volume adjusting valve and temperature sensor simultaneously, for according to temperature sensor
Observed temperature adjusts the aperture of electric air volume adjusting valve in the subway plant management information system of feedback.
Further, main control cabinet includes main power supply air switch, fan control module, air-valve control module, blower fan
Frequency converter and main electric air valve actuator, wherein,
Main power supply air switch is used for the on/off for controlling electrical equipment in whole main control cabinet,
Fan control module is mutually electrically connected with static pressure transducer, fan frequency converter simultaneously, and fan frequency converter is mutually electric with blower fan
Connection, fan control module is used for blast size in the air-supply main that is fed back according to static pressure transducer and sends frequency variation signal, and will
The frequency variation signal is transmitted to fan frequency converter, so that the operating frequency of blower fan is adjusted,
Air-valve control module is mutually electrically connected with static pressure transducer, main electric air valve actuator simultaneously, main Electric air valve
Actuator is also mutually electrically connected with air-supply main Electric air valve simultaneously, and air-valve control module is used for according to sending that static pressure transducer feeds back
Air-dry blast size in pipe and send air-valve control signal, and the air-valve control signal is transmitted to main electric air valve actuator,
So as to start and stop air-supply main Electric air valve.
Further, end-of-pipe control cabinet includes branch pipe power supply air switch, electric air volume adjusting valve control module and electricity
Dynamic volume damper actuator, wherein, branch pipe power supply air switch is used for the electricity for controlling electrical equipment in whole end-of-pipe control cabinet
Source break-make, electric air volume adjusting valve control module is electrically connected with temperature sensor and electric air volume adjusting valve actuator simultaneously,
Electric air volume adjusting valve actuator is electrically connected with electric air volume adjusting valve, and electric air volume adjusting valve control module is used for according to temperature
Spend observed temperature in the subway plant management information system of sensor feedback and send electric air volume adjusting valve control signal, and by the electricity
Dynamic volume damper control signal is transmitted to electric air volume adjusting valve actuator, to be adjusted by electric air volume adjusting valve actuator
The aperture of electric air volume adjusting valve.
It is another aspect of this invention to provide that there is provided a kind of subway plant management information system variable air rate air-supply system as described above
The control method of system, during work, first, main power supply air switch is opened in main control cabinet, air-valve control module output control
Signal opens the main Electric air valve on air-supply main by main electric air valve actuator, and it is defeated that blower fan receives fan control module
Delay setting duration starts after the control signal gone out,
Then, branch pipe power supply air switch is opened in end-of-pipe control cabinet, electric air volume adjusting valve control module output control
Signal, to control electric air volume adjusting valve actuator to open the electric air volume adjusting valve on air-supply main, so far, whole air-supply system
Each part of uniting is opened and normal work.
Further, when temperature is higher than setting value indoors, electric air volume adjusting valve control module is output control signals to
Electric air volume adjusting valve actuator, increases the aperture of electric air volume adjusting valve by electric air volume adjusting valve actuator, to increase
Air output on the blowpipe in corresponding tail end air conditioner room, and then indoor temperature is reduced to setting value,
When temperature is less than setting value indoors, electric air volume adjusting valve control module outputs control signals to electronic air quantity and adjusted
Valve actuator is saved, reduces the aperture of electric air volume adjusting valve by electric air volume adjusting valve actuator, to reduce corresponding end
Air output on the blowpipe of air-conditioned room, and then indoor temperature is maintained to setting value.
Further, while electric air volume adjusting valve aperture is adjusted, measured according to the static pressure transducer of main end
Pressure signal to blower fan carry out VFC, pressure signal be less than setting value when, fan control module output frequency variation signal
The running frequency of blower fan is improved by fan frequency converter, increases the air output of main end, when pressure signal is higher than setting value,
Then fan control module output frequency variation signal reduces the running frequency of blower fan by fan frequency converter, reduces the air-supply of main end
Amount.
Further, when fan operation frequency is down to setting value and runs setting duration, fan control module output control
Signal processed to control blower fan out of service, air-valve control module output control signal with control main electric air valve actuator close
Main Electric air valve.
Further, when electric air volume adjusting valve aperture is down to setting value and runs setting duration, electronic air quantity regulation
Valve control module output control signal is to close electric air volume adjusting valve.
Further, when fan operation frequency is down to 10~15Hz and maintains to set 10~15min, fan control module is defeated
Go out control signal, to stop the operation of blower fan, air-valve control module output control signal is to pass through main electric air valve actuator
Close main Electric air valve.
Further, when electric air volume adjusting valve aperture is down to 10~20% and runs 10~15min, electronic air quantity is adjusted
Valve control module output control signal is saved, to close electric air volume adjusting valve 3.
In general, by the contemplated above technical scheme of the present invention compared with prior art, it can obtain down and show
Beneficial effect：
Static pressure transducer is set in air-supply main end, temperature sensor is set respectively in each air-conditioned room room, passed through
The pressure signal of static pressure transducer monitoring controls the converting operation of blower fan, the temperature signal control fed back by indoor temperature transmitter
The control of blower fan and electric air volume adjusting valve, be kept completely separate by the aperture of electric air volume adjusting valve processed so as to realize, it is to avoid wind
The problems such as machine and electric air volume adjusting valve difficult coordination.
By controlling the aperture of frequency conversion fan running frequency and electric air volume adjusting valve, the air output in room is adjusted
Section, it is ensured that indoor temperature is the temperature value that user sets, and meets the hommization demand of different user, meets the frequent of room load
Change and the requirement of local temperature change, improve the thermal comfort in room.Become wind importantly, being realized using frequency conversion fan
Amount control, reduces the air output of supply air system at low load, can substantially reduce fan energy consumption, reduces the work(of distributing system
Consumption, with significant economic benefit and social benefit.
Brief description of the drawings
Fig. 1 is subway plant management information system variable air rate supply air system schematic diagram in the embodiment of the present invention.
In all of the figs, identical reference is used for representing identical element or structure, wherein：
1- blower fan 2- main Electric air valves
3- electric air volume adjusting valve 4- static pressure transducers
5- main control cabinet 6- main power supply air switches
7- fan control module 8- air-valve control modules
9- fan frequency converter 10- main electric air valve actuators
11- end-of-pipe control cabinet 12- branch pipe power supply air switches
13- electric air volume adjusting valve control module 14- electric air volume adjusting valve actuators
15- indoor temperature transmitters
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.As long as in addition, technical characteristic involved in each embodiment of invention described below
Not constituting conflict each other can just be mutually combined.
The subway plant management information system variable air rate supply air system of the present invention and its purpose of control method are：Ensure each room
Between variable air rate demand and while thermal comfort demand in real time, be effectively reduced the operation energy consumption of air-conditioner tail end equipment.
Fig. 1 is subway plant management information system variable air rate supply air system schematic diagram in the embodiment of the present invention, as shown in figure 1, this
Inventing a kind of subway plant management information system variable air rate supply air system includes blower fan 1, air-supply main Electric air valve 2, electronic wind
Adjustable valve 3, main control cabinet 5, end-of-pipe control cabinet 11, temperature sensor 15 and static pressure transducer 4.Wherein, main control cabinet 5 is wrapped
Main power supply air switch 6 is included, fan control module 7, air-valve control module 8, fan frequency converter 9 and main Electric air valve are held
Row device 10.End-of-pipe control cabinet 11 includes branch pipe power supply air switch 12, electric air volume adjusting valve control module 13 and electronic wind
Adjustable valve actuator 14.
Specifically, static pressure transducer 4 is arranged on air-supply main end, it is electrically connected with main control cabinet 5, for air-supply is dry
The pressure signal transmission of pipe is to fan control module 7 in main control cabinet 5 and air-valve control module 8.Blower fan 1, main Electric air valve 2
Electrically connected with main control cabinet 5.Fan frequency converter 9 is used for the control signal for receiving the output of fan control module 7, and then for controlling
The frequency conversion of blower fan 1.Air-valve control module 8 controls the switch of main Electric air valve 2 by electric air valve actuator 10.Main power supply
Air switch 6 controls the power input of each part of main control cabinet 5.
Temperature sensor 15 is arranged on that each is indoor, and temperature sensor 15 is electrically connected with end-of-pipe control cabinet 11, for by temperature
Degree signal passes to electric air volume adjusting valve control module 13 in main control cabinet 11.Electric air volume adjusting valve 3 and main control cabinet 11
Electrical connection.Electric air volume adjusting valve actuator 14 receives the control signal of the output of electric air volume adjusting valve control module 13, is used for
Control the aperture of electric air volume adjusting valve 3.The power input of each part of the control end-of-pipe control of branch road power supply air switch 12 cabinet 11.
The specific control method of the subway plant management information system variable air rate supply air system of the present invention is as follows：
When the first, working, main power supply air switch 6 is opened in main control cabinet 5, the output control signal of air-valve control module 8
Main Electric air valve 2 on air-supply main is opened by main electric air valve actuator 10, blower fan 1 receives fan control module 7
Postpone to start for 1 minute after the control signal of output.Then, branch pipe power supply air switch 12 is opened in end-of-pipe control cabinet 11, electronic
The output control signal of volume damper control module 13 opens the electricity on air-supply main by electric air volume adjusting valve actuator 14
Dynamic volume damper 3, each part normal work of supply air system.
2nd, tail end air conditioner room indoor temperature gives setting value (such as 27 DEG C).Electric air volume adjusting valve control module 13
Receive the temperature signal of indoor temperature transmitter 15, and output control signal passes through electric air volume adjusting valve actuator 14, control
The aperture of electric air volume adjusting valve 3.
If indoor temperature is higher than setting value (such as 27 DEG C), the output signal of electric air volume adjusting valve control module 13 is led to
Electric air volume adjusting valve actuator 14 is crossed, increases the aperture (such as rising to 90% from 80%) of electric air volume adjusting valve 3, increases the room
Between air output on corresponding blowpipe on pipe, reduction indoor temperature to setting value.
When indoor temperature is less than setting value (such as 27 DEG C), then the output signal of electric air volume adjusting valve control module 13 is led to
Crossing electric air volume adjusting valve actuator 14 reduces the aperture (being such as down to 70% from 80%) of electric air volume adjusting valve 3, reduces the room
Between air output on corresponding blowpipe, maintain indoor temperature constant.
3rd, when present system works, while 3 aperture of electric air volume adjusting valve is adjusted, according to the quiet of main end
The pressure signal that pressure sensor 4 is measured carries out VFC to blower fan 1.Pressure signal maintains a certain setting value (such as 0Pa),
Fan control module 7 receives the pressure signal of main end and compared with setting value, and output control signal passes through fan frequency converter 9
Control the running frequency of blower fan 1.
If pressure signal is less than setting value (such as 0Pa), the output frequency variation signal of fan control module 7 is become by blower fan
Frequency device 9 improves the running frequency (such as rising to 50Hz from 45Hz) of blower fan 1, the static pressure of increase main end.
When pressure signal is higher than setting value (such as 0Pa), then the output of fan control module 7 frequency variation signal is become by blower fan
Frequency device 9 reduces the running frequency (being such as down to 45Hz from 50Hz) of blower fan 1, reduces the static pressure of main end.
4th, when the running frequency of blower fan 1 is down to some value (such as 15Hz) and maintain a period of time (such as 10 minutes), blower fan
The output control signal of control module 7, stops the operation of blower fan 1, and the output control signal of air-valve control module 8 passes through the electronic wind of main
Valve actuator 10 closes main Electric air valve 2.
5th, when the aperture of electric air volume adjusting valve 3 is down to some value (20%) and maintain a period of time (such as 10 minutes), electricity
The dynamic output control signal of volume damper control module 13, closes electric air volume adjusting valve 3.
In above method, while being controlled to blower fan 1 with electric air volume adjusting valve 3, the Indoor Temperature of air-conditioned room is maintained
Degree is constant, the control effect of device is improved, so as to ensure the normal of whole subway plant management information system variable air rate supply air system
Efficient operation.
In above method, it on the one hand can be very good to control the constant of tail end air conditioner indoor temperature, undertaking room load
While improve room thermal comfort.On the other hand start and stop, VFC are carried out to blower fan, it is to avoid unnecessary energy wave
Take, realize the energy-efficient operation of device.
The technical characterstic of subway plant management information system variable air rate supply air system and its control method in the present invention：
1st, compared to traditional subway plant management information system air-conditioning system, variable air rate control is realized using frequency conversion fan
System, reduces the air output of supply air system at low load, reduces supply air system conveying energy consumption.
2nd, by adjusting the aperture of electric air volume adjusting valve in end branch, the air output in room is adjusted, protected
It is the temperature value that user sets to demonstrate,prove indoor temperature, meets the hommization demand of different user, meets the frequent change of room load
With the requirement of local temperature change, the thermal comfort in room is improved.
3rd, static pressure transducer is set in air-supply main end, temperature sensor is set respectively in each air-conditioned room room, lead to
The pressure signal for crossing static pressure transducer monitoring controls the converting operation of blower fan, the temperature signal fed back by indoor temperature transmitter
The aperture of electric air volume adjusting valve is controlled, the control of blower fan and electric air volume adjusting valve is kept completely separate so as to realize, it is to avoid
The problems such as blower fan and electric air volume adjusting valve difficult coordination.
4th, blower fan and air-valve coordinated signals, it is to avoid air output is wasted, lower the injured risk of blower fan.
In the present invention, fan frequency conversion operation reduces air output of the supply air system in underload, reduces the energy of blower fan
Consumption.
In the present invention, the air output directly according to corresponding to being controlled indoor temperature on blowpipe, it is ensured that indoor temperature is
The temperature value of user's setting, meets the hommization demand of different user, and the frequent change and local temperature for meeting room load become
The requirement of change, improves the thermal comfort in room.
In the present invention, while being controlled to blower fan with electric air volume adjusting valve, realize and adjust blower fan and electronic air quantity
The control of valve is kept completely separate, it is to avoid the problems such as blower fan and electric air volume adjusting valve difficult coordination.Blower fan and air-valve coordinated signals,
Avoid air output from wasting, the injured risk of blower fan can also be lowered.
A kind of subway plant management information system variable air rate supply air system and its control method proposed by the present invention, in supply air system
Frequency conversion fan is set on main, meanwhile, electric air volume adjusting valve is set respectively in each end branch, to blowpipe air output
It is controlled.Subway plant management information system variable air rate supply air system of the present invention, can meet the individual demand of different user, full
The frequent change of sufficient room load and the requirement of local temperature change, can improve the thermal comfort of subway plant management information system, together
When, using converter technique, realize the energy-efficient operation of whole distributing system.
The subway plant management information system variable air rate supply air system and its control method of the present invention, is independently set by user
The indoor temperature of standby Service center, meanwhile, the change of temperature sensor monitors indoor temperature is set in plant management information system, and lead to
The aperture of electric air volume adjusting valve on control cabinet control blowpipe is crossed, the air output in each room is controlled, it is ensured that each equipment control
Requirement with room user to room temperature.
In the present invention, user can autonomous set device Service center indoor temperature, distinct device management can be met
With the individual demand in room, the thermal comfort of subway plant management information system is improved.
In the present invention, subway plant management information system variable air rate supply air system, by Frequency Converter Control pressure fan converting operation,
So as to realize the VAV control of subway plant management information system, the small temperature difference strong wind of subway plant management information system supply air system is overcome
The drawbacks of amount air-supply, fan energy consumption is substantially reduced, reduce the power consumption of distributing system, imitated with significant economic benefit and society
Benefit.
Subway plant management information system variable air rate supply air system that the present invention is provided is simple in construction, easy to implement, cheap,
Air-conditioning system operation energy consumption can be effectively reduced.
In the subway plant management information system variable air rate supply air system of the present invention, user can autonomous set device Service center
Indoor temperature, the individual demand of distinct device Service center can be met, improve subway plant management information system heat relax
Adaptive.Using converter technique, in underrun, air output is reduced, fan energy consumption is substantially reduced, distributing system is reduced
Power consumption.
Generally speaking, subway plant management information system variable air rate supply air system of the invention has obvious technical advance,
Significant economy and very strong practicality, will possess wide market application foreground.Present system can be in subway station
Promoted, used for reference and applied in air-conditioning system or large-scale public construction design of air conditioning
In the present invention, each subway plant management information system namely tail end air conditioner room.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the invention etc., it all should include
Within protection scope of the present invention.
Claims (10)
1. a kind of subway plant management information system variable air rate supply air system, it include blowing main and connected with air-supply main it is multiple
Blowpipe, each blowpipe connects different subway plant management information systems, it is characterised in that
It also includes blower fan (1), air-supply main Electric air valve (2), electric air volume adjusting valve (3), main control cabinet (5), end control
Cabinet (11) processed, temperature sensor (15) and static pressure transducer (4),
Wherein, blower fan (1) is arranged on air-supply main port, and air-supply main Electric air valve (2) is arranged on air-supply main, and together
When be located at blower fan (1) air outlet downstream and blowpipe air inlet upstream, air-supply main Electric air valve (2) be used for by opening and closing from
Body valve port and control air-supply main in air quantity,
Electric air volume adjusting valve (3) is arranged on blowpipe, for controlling blowpipe by adjusting itself valve port opening
Middle air force,
Temperature sensor (15) is set in each subway plant management information system, the reality for measuring each subway plant management information system
Border temperature, static pressure transducer (4) is arranged on air-supply main line end, for measuring the blast size in air-supply main,
Main control cabinet (5) at the same with blower fan (1), air-supply main Electric air valve (2) and static pressure transducer (4) be electrically connected, use
The operating frequency of blast size regulation blower fan (1) and start and stop air-supply are dry in the air-supply main fed back according to static pressure transducer (4)
Pipe Electric air valve (2),
End-of-pipe control cabinet (11) with electric air volume adjusting valve (3) and temperature sensor (15) while be electrically connected, for according to temperature
Spend the aperture of observed temperature regulation electric air volume adjusting valve (3) in the subway plant management information system of sensor (15) feedback.
2. a kind of subway plant management information system variable air rate supply air system as claimed in claim 1, it is characterised in that main control cabinet
(5) include main power supply air switch (6), fan control module (7), air-valve control module (8), fan frequency converter (9) and
Main electric air valve actuator (10), wherein,
Main power supply air switch (6) is used for the on/off for controlling electrical equipment in whole main control cabinet (5),
Fan control module (7) while be mutually electrically connected with static pressure transducer (4), fan frequency converter (9), fan frequency converter (9) with
Blower fan (1) is electrically connected, and fan control module (7) is used for blast size in the air-supply main according to static pressure transducer (4) feedback
Frequency variation signal is sent, and the frequency variation signal is transmitted to fan frequency converter (9), so that the operating frequency of blower fan (1) is adjusted,
Air-valve control module (8) with static pressure transducer (4), main electric air valve actuator (10) while be mutually electrically connected, and main is electric
Dynamic fan valve executor (10) with air-supply main Electric air valve (2) while be also mutually electrically connected, and air-valve control module (8) is used for according to quiet
Blast size sends air-valve control signal in the air-supply main of pressure sensor (4) feedback, and by the air-valve control signal transmit to
Main electric air valve actuator (10), so that start and stop air-supply main Electric air valve (2).
3. a kind of subway plant management information system variable air rate supply air system as claimed in claim 2, it is characterised in that end-of-pipe control
Cabinet (11) includes branch pipe power supply air switch (12), and electric air volume adjusting valve control module (13) and electric air volume adjusting valve are held
Row device (14), wherein,
Branch pipe power supply air switch (12) is used for the on/off for controlling electrical equipment in whole end-of-pipe control cabinet (11),
Electric air volume adjusting valve control module (13) at the same with temperature sensor (15) and electric air volume adjusting valve actuator (14)
It is electrically connected, electric air volume adjusting valve actuator (14) is electrically connected with electric air volume adjusting valve (3), electric air volume adjusting valve control
Molding block (13) is used for observed temperature in the subway plant management information system according to temperature sensor (15) feedback and sends electronic wind
Adjustable valve control signal, and the electric air volume adjusting valve control signal is transmitted to electric air volume adjusting valve actuator (14),
To adjust the aperture of electric air volume adjusting valve (3) by electric air volume adjusting valve actuator (14).
4. the control method of the subway plant management information system variable air rate supply air system as described in one of claim 1-3, its feature
It is,
During work, first, main power supply air switch (6) is opened in main control cabinet (5), air-valve control module (8) output control
Signal opens the main Electric air valve (2) on air-supply main by main electric air valve actuator (10), and blower fan (1) receives blower fan
Delay setting duration starts after the control signal of control module (7) output,
Then, branch pipe power supply air switch (12) is opened in end-of-pipe control cabinet (11), electric air volume adjusting valve control module (13)
Output control signal, to control electric air volume adjusting valve actuator (14) to open the electric air volume adjusting valve (3) on air-supply main,
So far, each part of whole supply air system is opened and normal work.
5. the control method of subway plant management information system variable air rate supply air system as claimed in claim 4, it is characterised in that
When temperature is higher than setting value indoors, electric air volume adjusting valve control module (13) outputs control signals to electronic air quantity and adjusted
Valve actuator (14) is saved, increases the aperture of electric air volume adjusting valve (3) by electric air volume adjusting valve actuator (14), to increase
Air output on the blowpipe in corresponding tail end air conditioner room, and then indoor temperature is reduced to setting value,
When temperature is less than setting value indoors, electric air volume adjusting valve control module (13) outputs control signals to electronic air quantity and adjusted
Valve actuator (14) is saved, reduces the aperture of electric air volume adjusting valve (3) by electric air volume adjusting valve actuator (14), to reduce
Air output on the blowpipe in corresponding tail end air conditioner room, and then indoor temperature is maintained to setting value.
6. the control method of subway plant management information system variable air rate supply air system as claimed in claim 5, it is characterised in that
While electric air volume adjusting valve (3) aperture is adjusted, the pressure measured according to the static pressure transducer (4) of main end is believed
Number to blower fan (1) carry out VFC,
When pressure signal is less than setting value, fan control module (7) exports frequency variation signal and improves wind by fan frequency converter (9)
The running frequency of machine (1), the air output of increase main end,
When pressure signal is higher than setting value, then fan control module (7) output frequency variation signal passes through fan frequency converter (9) reduction
The running frequency of blower fan (1), reduces the air output of main end.
7. the control method of subway plant management information system variable air rate supply air system as claimed in claim 6, it is characterised in that
Blower fan (1) running frequency be down to setting value and run setting duration when, fan control module (7) output control signal with
Control blower fan (1) it is out of service, air-valve control module (8) output control signal with control main electric air valve actuator (10) close
Close main Electric air valve (2).
8. the control method of subway plant management information system variable air rate supply air system as claimed in claim 7, it is characterised in that
When electric air volume adjusting valve (3) aperture is down to setting value and runs setting duration, electric air volume adjusting valve control module
(13) output control signal is to close electric air volume adjusting valve (3).
9. the control method of subway plant management information system variable air rate supply air system as claimed in claim 7, it is characterised in that
When blower fan (1) running frequency is down to 10~15Hz and maintains to set 10~15min, fan control module (7) output control signal, with
The operation of stopping blower fan (1), air-valve control module (8) output control signal is closed with passing through main electric air valve actuator (10)
Main Electric air valve (2).
10. the control method of subway plant management information system variable air rate supply air system as claimed in claim 8, it is characterised in that
When electric air volume adjusting valve (3) aperture is down to 10~20% and runs 10~15min, electric air volume adjusting valve control module
(13) output control signal, to close electric air volume adjusting valve (3).
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| CN109579921A (en) * | 2019-01-18 | 2019-04-05 | 江苏宏宇船舶设备有限公司 | A kind of air-valve temperature action test device |
| CN109827302A (en) * | 2019-01-28 | 2019-05-31 | 广州大学 | The control method of Public Areas Associated with Metro Station water cooling straight-expansion type air conditioner unit |
| CN111023421A (en) * | 2019-12-27 | 2020-04-17 | 宁波奥克斯电气股份有限公司 | Static pressure self-adjustment control method and device and air conditioner |
| CN111836523A (en) * | 2020-07-24 | 2020-10-27 | 广州亿效能科技有限公司 | Three-level adjusting method and system for air conditioner of communication building based on IT equipment load change |
| CN112443918A (en) * | 2019-09-02 | 2021-03-05 | 中洁环境科技(西安)集团有限公司 | Static pressure air dividing box, control method thereof, fresh air fan and fresh air conditioning all-in-one machine |
| CN112503636A (en) * | 2020-11-30 | 2021-03-16 | 中铁第四勘察设计院集团有限公司 | Double-fan dynamic balance air conditioning system for room of subway station equipment personnel |
| CN114543198A (en) * | 2020-11-26 | 2022-05-27 | 汉唐集成股份有限公司 | Energy-saving air conditioning box control method and system |
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| CN111836523A (en) * | 2020-07-24 | 2020-10-27 | 广州亿效能科技有限公司 | Three-level adjusting method and system for air conditioner of communication building based on IT equipment load change |
| CN114543198A (en) * | 2020-11-26 | 2022-05-27 | 汉唐集成股份有限公司 | Energy-saving air conditioning box control method and system |
| CN112503636A (en) * | 2020-11-30 | 2021-03-16 | 中铁第四勘察设计院集团有限公司 | Double-fan dynamic balance air conditioning system for room of subway station equipment personnel |
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Application publication date: 20170901 |