CN106403208A - Draught fan coil pipe temperature control device controlled based on supply air temperature - Google Patents
Draught fan coil pipe temperature control device controlled based on supply air temperature Download PDFInfo
- Publication number
- CN106403208A CN106403208A CN201610966590.2A CN201610966590A CN106403208A CN 106403208 A CN106403208 A CN 106403208A CN 201610966590 A CN201610966590 A CN 201610966590A CN 106403208 A CN106403208 A CN 106403208A
- Authority
- CN
- China
- Prior art keywords
- temperature
- fan coil
- temperature control
- wind pushing
- blower fan
- Prior art date
- 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
- 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
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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 invention discloses a draught fan coil pipe temperature control device controlled based on supply air temperature. The device comprises a controller, and a first temperature sensor, a second temperature sensor, an electric water valve, a control panel and a draught fan which are all connected with the controller; the first temperature sensor is located in an air returning channel of a draught fan coil pipe; the second temperature sensor is located in an air supplying channel of the draught fan coil pipe; the draught fan is located in the draught fan coil pipe; a signal processing module used for adjusting the supply air temperature and the return air temperature is arranged in the controller; the first temperature sensor is used for acquiring first temperature information in the air returning channel; and the second temperature sensor is used for acquiring second temperature information in the air supplying channel. The draught fan coil pipe temperature control device controlled based on the supply air temperature has the beneficial effects of being high in comfort degree, low in noise, high in efficiency, capable of saving energy and time and high in precision.
Description
Technical field
The invention belongs to HVAC technical field is and in particular to a kind of fan coil temperature based on wind pushing temperature control
Control device.
Background technology
Fan coil is the end prod of central air-conditioning, by heat exchanger, filter, direct current brushless motor, drip tray, water
The composition such as pipe, air bleeding valve and support, its operation principle is made by fan coil units and constantly circulates room air, bypasses air through
After cold water (hot water) coil pipe be cooled (heating), maintain interior requirement temperature constant.
With the continuous development of fan coil technology, the field of utilization also becomes big therewith, now mainly applies to market, office
The places such as room, hospital, scientific research institution.The fortune to whole air conditioning system for the end heat exchange property of central air-conditioning system in prior art
Market condition has a great impact.General fan coil, air quantity passes through artificial regulation, and water route carries out break-make control using electrodynamic valve
System, or ratio control is carried out according to return air temperature, when air intake parameter is fixed, air quantity one timing, supply backwater temperature difference is only and sets
The meter temperature difference.If demand cold reduces, return air temperature reduces, then supply backwater temperature difference can be less than designed temperature difference, and fan coil water side is changed
The hot temperature difference also reduces, and affects engine efficiency and air conditioning water system water balance.
, there is following aspect problem in the fan coil of prior art：
(1) it is to ensure hydraulic equilibrium, need to install dynamic adjusting device additional, when load reduction, wind pushing temperature can accordingly drop
Low, increase with the shell temperature temperature difference, produce the problems such as supercool and capillary tube shrinks, indoor air temperature declines, and leads to skin simultaneously
Skin is dried, and air conditioner surroundings sense of discomfort increases, and adjusts the water yield by pressure or the temperature difference, and efficiency is low, and resistance is big, is difficult accurately
Adjust；
(2) during manual adjustment air quantity, there is deviation with actual refrigeration requirement, in underload, larger air quantity can produce
Loud noise；In high load capacity, relatively low air quantity is not provided that enough heat exchange amounts again.
Content of the invention
In order to solve the above problems, the present invention provides a kind of dress of the fan coil temperature control based on wind pushing temperature control
Put, moreover it is possible to make the actual temperature difference of operation of the end of air conditioning water system be more than or equal to design while meeting heat exchange amount
The temperature difference, improves heat exchange efficiency it is ensured that the hydraulic equilibrium of air conditioning system, ensures the feature of energy-conservation and comfortableness simultaneously.
For achieving the above object, the present invention is achieved by technical scheme below：
Fan coil temperature control equipment based on wind pushing temperature control of the present invention, including controller, respectively with
The first temperature sensor, second temperature sensor, dynamoelectric water valve, control panel and blower fan that described controller connects；Described
One temperature sensor is located in the return air channel of fan coil；Described second temperature sensor is located at the air-supply passage of blower fan pipe dish
Interior；Described blower fan is located in described blower fan pipe dish；It is provided with the letter for adjusting wind pushing temperature and return air temperature in described controller
Number processing module；Described first temperature sensor is used for gathering the first temperature information in return air channel, and described second temperature passes
Sensor is used for gathering the second temperature information in air-supply passage, and described controller passes through to receive described first temperature information and second
After temperature information, described signal processing module compared according to the first temperature information and preset temperature information after the first temperature differential information
Afterwards, by adjusting the rotating speed controlling blower fan, realize automatically adjusting of air output, to adjust the return air temperature of interior；Described signal
Processing module second temperature information and preset temperature information are compared after the second temperature differential information after, by adjusting electric water
The aperture of valve, to realize the regulation of wind pushing temperature.
Further, described signal processing module includes the first PID arithmetic processing unit and the second PID arithmetic processes list
Unit；Described first PID arithmetic processing unit carries out proportion adjustment by the first temperature differential information, to realize controlling the rotating speed of blower fan；
Described second PID arithmetic processing unit carries out proportion adjustment by the second temperature differential information, to realize controlling the aperture of dynamoelectric water valve.
Further, described controller is connected by the band point communication interface of the stepless property of twisted-pair feeder with control panel.
Further, described blower fan is adjustable speed blower fan.
Further, described adjustable speed blower fan is direct current brushless motor or frequency conversion fan.
Further, described control panel is provided with display screen and operation button.
Further, described controller leads to and is connected to building control system BMS.
Further, described controller is provided with multiple I/O interfaces, for respectively with described first temperature sensor, second
Temperature sensor, dynamoelectric water valve, control panel and blower fan connect.
Compared with prior art, the invention has the beneficial effects as follows：
1st, by the use of guidance panel as design temperature input, first by the first temperature sensor collection is warm for the present invention
Degree (return air temperature) information compares with design temperature, the temperature signal of formation so that the rotating speed of signal processing module control blower fan,
And then solve the air quantity of prior art fan coil with water yield mismatch, wind pushing temperature change is excessive, heat exchange efficiency is low, control is smart
Spend poor, the uncomfortable drawback of human body sensory, solve the problems, such as precision and comfort level that fan coil automatically controls, realize comfort level
The self balancing function with system.
2nd, the present invention is by the use of guidance panel as design temperature input, the second temperature being gathered by second temperature sensor
The temperature signal of degree (wind pushing temperature) information and design temperature, the aperture of control valve it is ensured that wind pushing temperature constant, meanwhile,
Ensure that backwater temperature difference is more than or equal to designed temperature difference, wind pushing temperature constant is it is ensured that the comfort level of indoor occupant.
3rd, the present invention is according to indoor demand dynamic regulation air quantity and the water yield due to its operation characteristic, realizes demand and cooling
The Auto-matching of the Auto-matching, air output and output of amount, had both adapted to the requirement of different operating modes, can guarantee that air conditioning system again
Comfortableness, improve air conditioning system end energy-saving effect.
Brief description
Below in conjunction with the accompanying drawings the specific embodiment of the present invention is described in further detail, wherein：
Fig. 1 is the structural representation letter of the fan coil temperature control equipment based on wind pushing temperature control of the present invention
Figure；
Fig. 2 is that the signal of the fan coil temperature control equipment based on wind pushing temperature control of the present invention moves towards figure.
In figure：
1：Blower fan pipe dish 2：Dynamoelectric water valve
3：Controller 31：Signal processing module
311：First PID arithmetic processing unit 312：Second PID arithmetic processing unit
4：Control panel 41：Display screen 42：Operation button
5：First temperature sensor 6：Second temperature sensor 7：Blower fan
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are illustrated it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
As depicted in figs. 1 and 2, the fan coil temperature control equipment based on wind pushing temperature control of the present invention, bag
Include dynamoelectric water valve 2, controller 3, the first temperature sensor 5, second temperature sensor 6 and blower fan 7.
Described first temperature sensor 5, second temperature sensor 6 and dynamoelectric water valve 2 are all respectively with described controller 3 even
Connect, described first temperature sensor 5 is located in the return air channel of blower fan pipe dish 1, the first temperature sensor 5 is used for gathering return air leads to
The first temperature information in road, i.e. return air temperature information；Described first temperature information real-time Transmission is to described controller 3.
Described second temperature sensor 6 is located in the air-supply passage of described blower fan pipe dish 1, for gathering in air-supply passage
Second temperature information, i.e. wind pushing temperature information, this second temperature information also real-time Transmission extremely described controller 3.
It is provided with the signal processing module 31 for adjusting wind pushing temperature and return air temperature in described controller；At described signal
After managing the first temperature differential information after module 31 can also compare according to the first temperature information and preset temperature information, the temperature difference of formation
Signal, by adjusting the rotating speed controlling blower fan, to realize the regulation of return air temperature, solves the air quantity of prior art fan coil
With water yield mismatch, wind pushing temperature change is excessive, heat exchange efficiency is low, control accuracy is poor, the uncomfortable drawback of human body sensory.
In addition, after described signal processing module 31 is compared according to second temperature information and pre- temperature information second is warm
After difference information, by adjusting the aperture of dynamoelectric water valve, to realize the regulation of wind pushing temperature it is ensured that backwater temperature difference is more than or equal to
Designed temperature difference, wind pushing temperature constant is it is ensured that the comfort level of indoor occupant.
Specifically, the first PID arithmetic processing unit 311 and the 2nd PID fortune are also included in described signal processing module 31
Calculate processing unit 312；Described first PID arithmetic processing unit 311 carries out proportion adjustment by the first temperature differential information, to realize controlling
The rotating speed of blower fan processed, thus controlling the air output of blower fan pipe dish 1, and then realizes the regulation of return air temperature；Described second PID arithmetic
Processing unit 312 carries out proportion adjustment by the second temperature differential information, with realize control dynamoelectric water valve 2 aperture, this aperture and
Remembered, finally realized the regulation to wind pushing temperature.
Wherein, described dynamoelectric water valve 2 is electric control valve, can bi-directional rotary valve clockwise and anticlockwise, angle stroke
The aperture of valve for 0-90 °, can be changed with uniform angular velocity by the signal of telecommunication, and then the negotiability of control valve, control
Enter the water yield of heat exchange coil, controlled the unlatching/shut-in time of dynamoelectric water valve 2 by controller 3 according to wind pushing temperature, and then control
The aperture of dynamoelectric water valve 2, thus reaching the switch to pipeline medium or adjusting purpose.
More simple, convenient in order to install during actual field, then described controller 3 and control panel 4 are by double
The band point communication interface of the stepless property of twisted wire connects.
In order to ensure to provide continuously adjustable air quantity, described blower fan 7 is direct current brushless motor or frequency conversion fan, or other
There is the blower fan of equal continuously adjustabe air quantity.After indoor return air is sent through blower fan 7, through the heat exchange coil heat exchange in fan coil 1,
Deliver to interior again, the static pressure of the blower fan 7 of fan coil 1 is generally 10-50Pa, less than 80Pa.
Described control panel 4 is provided with display screen 41 and operation button 42, and wherein display screen 41 is used for showing current indoor temperature
The information such as degree, design temperature, indoor humidity, blower fan start and stop state or rotation speed of fan, are arranged on the interior space away from ground 1.0-1.3 rice
Height, the position of depletion of YANG light direct beam and obvious thermal source, specifically can be according to actual adjustment；Described operation button 42 is used for inputting user institute
The temperature needing or humidity information.
Waterpower adjustment for more preferably whole air conditioning system provides certain reference, then described controller always passes through scene
Line interface is connected with building control system BMS.
Meanwhile, described controller 3 is provided with multiple I/O interfaces, is easy to pass with above first temperature sensor 5, second temperature
Sensor 6, the connection of dynamoelectric water valve 2, control panel 4 and blower fan 7, decrease forceful electric power circuit simultaneously, it is to avoid existing in prior art
Field intensity electricity and light current is pre-buried respectively, wiring is complicated, fallibility, need line 6-8 bar, or even the problem of up to 12.
User in actual use, is described as follows：
Air quantity one timing of described fan coil 1, certain for water temperature difference, output reduces, heat exchange coil water side heat-transfer surface
Long-pending increase, fan coil 1 heat exchange efficiency increases.Counted according to part fan coil pipe 1 properties of product, when being 5 DEG C for water temperature difference, supply
When discharge reduction is to 80%, refrigerating capacity is original 92% about, and when illustrating that output reduces, fan coil 1 coefficient of refrigerating performance increases
Greatly.
The supply backwater temperature difference of described fan coil 1 is certain, when supply water temperature raises, the refrigerating capacity in fan coil 1 with
Minimizing, need refrigerating efficiency to improve, according to statistics, supply water temperature raises 1 DEG C, it is left that 1 refrigerating capacity in fan coil reduces 10%
The right side, however it is necessary that refrigeration unit improves 4% about, air conditioning system COP increases.
When described fan coil 1 runs under standard condition, air-treatment terminal depends on air-treatment enthalpy difference, works as air-supply
When temperature is too low, system is run in wet cooling condition, and fan coil dehumidifying effect rises, and heat exchanger surface forms moisture film, fan coil 1
Heat exchange efficiency reduces, and refrigerating capacity reduces；When wind pushing temperature is higher, system is run in dry cooling condition, fan coil 1 heat exchange efficiency liter
Height, refrigerating capacity increases.Therefore, under different operating modes, the function of comfortable energy-conservation can be realized by changing wind pushing temperature.
Indoor thermal environment is comprehensively made up of indoor air temperature, humidity, air velocity and mean radiant temperature elemental,
Using the thermal comfort degree of people as evaluation criterion.But, within air-conditioning systems, wind pushing temperature is impact indoor air temperature, wet
The important parameter of the thermal environment key elements such as degree.Conventional fan coil pipe wind pushing temperature typically at 12-16 DEG C, the fan coil 1 of the present invention
Wind pushing temperature is adjustable, is strict controlled in 16-20 DEG C, when system loading changes, by adjusting air quantity or the water yield it is ensured that sending
Air temperature is constant, it is to avoid the sense of discomfort blown a cold wind over is it is ensured that the comfortableness of human body.
The present invention passes through the blast temperature signals of second temperature sensor 6 and sets blast temperature signals to dynamoelectric water valve 2
It is controlled, simultaneously return air temperature signal and the air output setting return air temperature signal control fan coil 1；According to indoor demand
Heat exchange amount dynamic regulation air quantity and the water yield, realize the Auto-matching of demand and the Auto-matching, air output and output of semen donors,
Both adapt to the requirement of different operating modes, can guarantee that the comfortableness of air conditioning system again, improve the energy-saving effect of air conditioning system end.
The above, be only presently preferred embodiments of the present invention, not the present invention is made with any pro forma restriction, therefore
Every any modification without departing from technical solution of the present invention content, according to the technical spirit of the present invention, above example made,
Equivalent variations and modification, all still fall within the range of technical solution of the present invention.
Claims (8)
1. a kind of fan coil temperature control equipment based on wind pushing temperature control it is characterised in that：
The first temperature sensor of including controller, being connected with described controller respectively, second temperature sensor, dynamoelectric water valve,
Control panel and blower fan；
Described first temperature sensor is located in the return air channel of fan coil；
Described second temperature sensor is located in the air-supply passage of blower fan pipe dish；
Described blower fan is located in described blower fan pipe dish；
It is provided with the signal processing module for adjusting wind pushing temperature and return air temperature in described controller；
Described first temperature sensor is used for gathering the first temperature information in return air channel, and described second temperature sensor is used for
Second temperature information in collection air-supply passage, described controller passes through to receive described first temperature information and second temperature information
Afterwards, after the first temperature differential information after described signal processing module compares according to the first temperature information and preset temperature information, pass through
Adjust the rotating speed controlling blower fan, realize automatically adjusting of air output, to adjust the return air temperature of interior；
Described signal processing module second temperature information and preset temperature information are compared after the second temperature differential information after, lead to
Overregulate the aperture of dynamoelectric water valve, to realize the regulation of wind pushing temperature.
2. the fan coil temperature control equipment based on wind pushing temperature control according to claim 1 it is characterised in that：
Described signal processing module includes the first PID arithmetic processing unit and the second PID arithmetic processing unit；
Described first PID arithmetic processing unit carries out proportion adjustment by the first temperature differential information, to realize controlling the rotating speed of blower fan；
Described second PID arithmetic processing unit carries out proportion adjustment by the second temperature differential information, to realize controlling dynamoelectric water valve
Aperture.
3. the fan coil temperature control equipment based on wind pushing temperature control according to claim 1 it is characterised in that：
Described controller is connected by the band point communication interface of the stepless property of twisted-pair feeder with control panel.
4. the fan coil temperature control equipment based on wind pushing temperature control according to claim 1 it is characterised in that：
Described blower fan is adjustable speed blower fan.
5. the fan coil temperature control equipment based on wind pushing temperature control according to claim 4 it is characterised in that：
Described adjustable speed blower fan is direct current brushless motor or frequency conversion fan.
6. the fan coil temperature control equipment being controlled based on wind pushing temperature according to claim 1 or 3, its feature exists
In：
Described control panel is provided with display screen and operation button.
7. the fan coil temperature control equipment based on wind pushing temperature control according to claim 1 it is characterised in that：
Described controller leads to and is connected to building control system BMS.
8. the fan coil temperature control equipment based on wind pushing temperature control according to claim 1 it is characterised in that：
Described controller is provided with multiple I/O interfaces, for respectively with described first temperature sensor, second temperature sensor, electricity
Dynamic water valve, control panel and blower fan connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966590.2A CN106403208A (en) | 2016-10-28 | 2016-10-28 | Draught fan coil pipe temperature control device controlled based on supply air temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610966590.2A CN106403208A (en) | 2016-10-28 | 2016-10-28 | Draught fan coil pipe temperature control device controlled based on supply air temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106403208A true CN106403208A (en) | 2017-02-15 |
Family
ID=58015116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610966590.2A Pending CN106403208A (en) | 2016-10-28 | 2016-10-28 | Draught fan coil pipe temperature control device controlled based on supply air temperature |
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| CN (1) | CN106403208A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705390A (en) * | 2017-03-21 | 2017-05-24 | 广州市天园科技有限公司 | Fan coil self-adaptive energy saving control device and method |
| CN106766020A (en) * | 2017-03-21 | 2017-05-31 | 广州市天园科技有限公司 | Fan coil adaptive controller and method based on direct current brushless motor |
| CN106871371A (en) * | 2017-03-14 | 2017-06-20 | 广州市高衡力节能科技股份有限公司 | Tail end of central air conditioner metering and control device based on air enthalpy difference |
| CN108302722A (en) * | 2017-07-17 | 2018-07-20 | 珠海格力电器股份有限公司 | Air-conditioning and its air-conditioning part duty control method and device |
| CN109323392A (en) * | 2018-09-21 | 2019-02-12 | 广东美的制冷设备有限公司 | Cabinet air-conditioner and the method and apparatus and storage medium for controlling its leaving air temp |
| CN110068141A (en) * | 2019-04-18 | 2019-07-30 | 听枫智能科技(深圳)有限公司 | A kind of heated at constant temperature control method and device |
| CN110108006A (en) * | 2019-05-08 | 2019-08-09 | 广东美的暖通设备有限公司 | Progress control method, device, air conditioner and readable storage medium storing program for executing |
| CN110567102A (en) * | 2019-08-27 | 2019-12-13 | 广东艾科技术股份有限公司 | Fan coil control method and system based on constant temperature difference adjustment |
| CN111750507A (en) * | 2019-03-27 | 2020-10-09 | 南京南瑞继保电气有限公司 | Air conditioner tail end wind and water linkage adjusting system and adjusting method |
| CN113465147A (en) * | 2021-04-25 | 2021-10-01 | 青岛海尔空调器有限总公司 | Control method and system for heating of air conditioner and air conditioner |
| CN113531813A (en) * | 2021-07-21 | 2021-10-22 | 上海建工集团股份有限公司 | Fan coil heat exchange model building and correcting method based on sample data |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871371A (en) * | 2017-03-14 | 2017-06-20 | 广州市高衡力节能科技股份有限公司 | Tail end of central air conditioner metering and control device based on air enthalpy difference |
| CN106766020A (en) * | 2017-03-21 | 2017-05-31 | 广州市天园科技有限公司 | Fan coil adaptive controller and method based on direct current brushless motor |
| CN106705390A (en) * | 2017-03-21 | 2017-05-24 | 广州市天园科技有限公司 | Fan coil self-adaptive energy saving control device and method |
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| CN109323392A (en) * | 2018-09-21 | 2019-02-12 | 广东美的制冷设备有限公司 | Cabinet air-conditioner and the method and apparatus and storage medium for controlling its leaving air temp |
| CN111750507A (en) * | 2019-03-27 | 2020-10-09 | 南京南瑞继保电气有限公司 | Air conditioner tail end wind and water linkage adjusting system and adjusting method |
| CN110068141A (en) * | 2019-04-18 | 2019-07-30 | 听枫智能科技(深圳)有限公司 | A kind of heated at constant temperature control method and device |
| CN110068141B (en) * | 2019-04-18 | 2021-12-31 | 听枫智能科技(深圳)有限公司 | Constant-temperature heating control method and device |
| CN110108006A (en) * | 2019-05-08 | 2019-08-09 | 广东美的暖通设备有限公司 | Progress control method, device, air conditioner and readable storage medium storing program for executing |
| CN110108006B (en) * | 2019-05-08 | 2021-04-02 | 广东美的暖通设备有限公司 | Operation control method and device, air conditioner and readable storage medium |
| CN110567102A (en) * | 2019-08-27 | 2019-12-13 | 广东艾科技术股份有限公司 | Fan coil control method and system based on constant temperature difference adjustment |
| CN113465147A (en) * | 2021-04-25 | 2021-10-01 | 青岛海尔空调器有限总公司 | Control method and system for heating of air conditioner and air conditioner |
| CN113531813A (en) * | 2021-07-21 | 2021-10-22 | 上海建工集团股份有限公司 | Fan coil heat exchange model building and correcting method based on sample data |
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