CN205425303U - According to spacing fan coil temperature control device of delivered air quantity control water valve aperture - Google Patents
According to spacing fan coil temperature control device of delivered air quantity control water valve aperture Download PDFInfo
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- CN205425303U CN205425303U CN201620152777.4U CN201620152777U CN205425303U CN 205425303 U CN205425303 U CN 205425303U CN 201620152777 U CN201620152777 U CN 201620152777U CN 205425303 U CN205425303 U CN 205425303U
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Abstract
The utility model relates to an according to spacing fan coil temperature control device of delivered air quantity control water valve aperture, including fan coil, electric water valve, controller and control panel, be equipped with the fan among the fan coil, its characterized in that: be equipped with air supply level sensor in fan coil's air supply passage, the controller has signal processing unit and feedback information processing unit and a plurality of analog signal input, a plurality of analog signal output, a plurality of digital signals input end and a plurality of data signal output, feedback signal input, electric water valve's opening feedback signal output part connection director's aperture feedback signal input is measured in air supply level sensor's amount of wind signal output part connection director's air supply, the air supply volume feedback signal that level sensor will be supply air to the controller contrasts with setting for air supply volume signal, forms the fan coil temperature control structure spacing according to delivered air quantity control water valve aperture. The utility model discloses leading to efficient, labour saving and time saving has, the precision is high, guarantee air conditioning system's the energy -conservation and the beneficial effect of travelling comfort.
Description
Technical field
This utility model relates to a kind of temperature control equipment, especially relates to a kind of fan coil temperature control equipment controlling water valve check according to air output.Belong to HVAC technical field.
Background technology
Fan coil is the end prod of central air-conditioning, it is made up of heat exchanger, water pipe, filter, fan, drip tray, air bleeding valve and support etc., its operation principle is the air in constantly room, recirculation place in unit, bypass air through after cold water (hot water) coil pipe cooled (heating), to keep the constant of room temperature.
Along with the development of fan coil technology, the field of utilization becomes greatly the most therewith, is now mainly used in some places such as office, hospital, scientific research institution.Fan coil mainly by relying on the positive action of blower fan, is got a desired effect by the effect of surface cooler.
In prior art, the ruuning situation of system is had a great impact by the end heat exchange property of central air-conditioning system.General fan coil, air quantity can artificially regulate, and water route uses electrodynamic valve to carry out break-make control.When air intake parameter is fixed, and air quantity is design air flow, only when the water yield and cold are design conditions, import and export the temperature difference and be only designed temperature difference.If discharge reduction, then cold reduces, and now imports and exports the temperature difference and can be more than designed temperature difference.If the water yield is excessive, then imports and exports the temperature difference and can be less than designed temperature difference.In order to ensure the energy-saving effect of the chilled water system of central air conditioning, it is necessary for avoiding the occurrence of the phenomenon of " big flow, the little temperature difference ", thus ensures the heat transfer effect of end and rational hydraulic equilibrium performance.When air output is less, coil heat exchange ability declines, and water effluent amount should reduce, and can cause the super stream of the water yield, the problem reducing the system heat-exchanging water temperature difference equally.Therefore, during air output difference, the aperture of water valve should have been limited.
Therefore, during air output difference, the aperture of water valve should have been limited.For central air-conditioning system of the prior art, for making heat exchange conformance with standard reach hydraulically balanced effect simultaneously, it is to avoid " big flow, the little temperature difference ".
, owing to being not provided with controlling water valve check structure according to air output, there is following aspect problem: (1), for avoiding " big flow, the little temperature difference ", needs to manually adjust air quantity and the water yield in the fan coil of prior art, efficiency is low, take time and effort.(2) manual adjustment easily produces personal error, and precision is low.For this, need to design a kind of fan coil temperature control equipment controlling water valve check according to air output, there is the actual temperature difference of operation of the end making air conditioning water system while providing the heat exchange amount needed more than designed temperature difference, avoid the phenomenon of " big flow; the little temperature difference ", it is ensured that the feature of the energy-conservation and comfortableness of air conditioning system.
Utility model content
The purpose of this utility model, is to need to manually adjust air quantity and the water yield to solve the fan coil of prior art, and efficiency is low, take time and effort, easily produce personal error and the low problem of precision.A kind of fan coil temperature control equipment controlling water valve check according to air output is provided.This fan coil temperature control equipment realizes air output and controls water valve check, it is to avoid the phenomenon of " big flow, the little temperature difference ", it is ensured that the energy-conservation and comfortableness of air conditioning system.
The purpose of this utility model can reach by following technical solution:
Control the fan coil temperature control equipment of water valve check according to air output, including fan coil, dynamoelectric water valve, controller and control panel, fan coil is provided with blower fan；Its construction features is: be provided with air output sensor in the air-supply passage of fan coil, and controller has signal processing unit and feedback information processing unit and several input end of analog signal, several analog signal outputs, several digital signal input ends and several digital signal output ends；Air output sensor has air volume test head and air volume signal outfan, and control panel has display screen and operation button, and operation button, as manual ringing input, inputs the setting value of room temperature, the spacing value of dynamoelectric water valve aperture；The signal output part of control panel connects the signal input part of controller, the air volume signal outfan of air output sensor connects the air output feedback signal input terminal of controller, the rotation speed of fan feedback signal output of fan coil connects the rotation speed of fan feedback signal input terminal of controller, and the open degree feedback signal output part of dynamoelectric water valve connects the open degree feedback signal input part of controller；The air output feedback signal of air output sensor is contrasted by controller with setting air output signal, the opening control signal of output dynamoelectric water valve, to control the aperture of dynamoelectric water valve in the check set, form the fan coil temperature control system controlling water valve check according to air output.
The purpose of this utility model can also reach by following technical solution:
Further, return air temperature sensor it is provided with in the return air channel of fan coil, return air temperature sensor has temperature detecting head and temperature signal outfan, the temperature signal outfan of return air temperature sensor connects the temperature feedback signal input of controller, controller is according to current return air temperature and the deviation of the setting value of room temperature, after utilizing built-in signal processing unit processes, result is sent to as control signal the control input of dynamoelectric water valve, make it carry out synchronization action, control indoor temperature.
Further, controller is provided with multiple I/O port, wherein, analog input port AI includes air output signal input part, dynamoelectric water valve open degree feedback signal input part, rotation speed of fan feedback signal input terminal, analog output port AO includes dynamoelectric water valve opening control signal outfan, rotation speed of fan control signal outfan, digital quantity input port DI includes blower fan start and stop state signal input terminal, manual auto state signal input part, failure alarm signal input, digital output port DO includes blower fan on off control signal output part, the most automatically changeover control signal outfan.
Further, outfan at controller connects faulty alarm, controller has feedback information processing unit, the rotation speed of fan feedback signal of fan coil, the open degree feedback signal of dynamoelectric water valve are analyzed processing by the feedback information processing unit of controller, form alarm signal and export the alarm signal input of fault alarm, with driving malfunction alarm equipment alarm.
Further, the signal processing unit of controller has PID arithmetic processing module, this PID arithmetic processing module carries out process form air quantity difference signal to air output feedback signal and the setting air output signal of air output sensor, and controller controls the aperture of dynamoelectric water valve by air quantity difference signal.
Further, the blower fan of fan coil is the adjustable direct current brushless motor of air quantity or frequency conversion fan, dynamoelectric water valve is motorized adjustment two water-through valve that can be changed valve opening by the signal of telecommunication, blower fan start stop signal, manual auto state conversion signal, and the blower fan start stop signal input of delivery controller and manual auto state changing over signal inputs is inputted respectively by the operation key area of control panel.
Further, air output sensor is made up of pressure transducer.
Further, display screen shows current indoor temperature and/or design temperature and/or air processing machine start and stop state and/or air force.Described controller and control panel are electrically connected by RS485 interface.
This utility model has a following prominent beneficial effect:
1, this utility model is by being provided with air output sensor in the air-supply passage of fan coil, the air volume signal outfan of air output sensor connects the air output feedback signal input terminal of controller, the rotation speed of fan feedback signal output of fan coil connects the rotation speed of fan feedback signal input terminal of controller, and the open degree feedback signal output part of dynamoelectric water valve connects the open degree feedback signal input part of controller；The air output feedback signal of air output sensor is contrasted by controller with setting air output signal, the opening control signal of output dynamoelectric water valve, to control the aperture of dynamoelectric water valve in the check set, form the fan coil temperature control system controlling water valve check according to air output；Therefore, it is possible to the fan coil solving prior art needs to manually adjust air quantity and the water yield, efficiency is low, take time and effort, easily produce personal error and problem that precision is low, it is to avoid the phenomenon of " big flow, the little temperature difference "；Make the actual temperature difference of operation of end of air conditioning water system more than designed temperature difference while providing the heat exchange amount needed；There is the beneficial effect of the energy-conservation and comfortableness that efficiency is high, time saving and energy saving, precision is high, ensure air conditioning system.
2, this utility model limits the aperture of two water-through valves according to the size of the air output of fan coil, thus ensure while the heat exchange amount needed is provided, fan coil discharge under this air output is without departing from the flow needed, make the chilled water Inlet and outlet water temperature difference will not be too low, operating mode consistently achieves the scope of preferable operating point, run its effect under power be optimum efficiency and the needs according to user arbitrarily regulate identical, the most significantly ensure the energy-saving effect of air conditioning system, can allow again user more comfortableness.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of this utility model specific embodiment 1 or 2.
Fig. 2 is that the signal of this utility model specific embodiment moves towards block diagram.
Detailed description of the invention
Embodiment below in conjunction with the accompanying drawings further illustrates the detailed description of the invention of utility model.
Specific embodiment 1:
With reference to Fig. 1, Fig. 2, the present embodiment includes fan coil 1, dynamoelectric water valve 2, controller 3 and control panel 4, is provided with blower fan in fan coil 1；Being provided with air output sensor 5 in the air-supply passage of fan coil 1, controller 3 has signal processing unit and feedback information processing unit and several input end of analog signal, several analog signal outputs, several digital signal input ends and several digital signal output ends；Air output sensor 5 has air volume test head and air volume signal outfan, and control panel 4 has display screen and operation button, and operation button, as manual ringing input, inputs the setting value of room temperature, the spacing value of dynamoelectric water valve 2 aperture；The signal output part of control panel 4 connects the signal input part of controller 3, the air volume signal outfan of air output sensor 5 connects the air output feedback signal input terminal of controller 3, the rotation speed of fan feedback signal output of fan coil 1 connects the rotation speed of fan feedback signal input terminal of controller 3, and the open degree feedback signal output part of dynamoelectric water valve 2 connects the open degree feedback signal input part of controller 3；The air output feedback signal of air output sensor 5 is contrasted by controller (3) with setting air output signal, the opening control signal of output dynamoelectric water valve 2, to control the aperture of dynamoelectric water valve 2 in the check set, form the fan coil temperature control system controlling water valve check according to air output.
In the present embodiment:
It is provided with return air temperature sensor in the return air channel of fan coil 1, return air temperature sensor has temperature detecting head and temperature signal outfan, the temperature signal outfan of return air temperature sensor connects the temperature feedback signal input of controller 3, controller 3 is according to current return air temperature and the deviation of the setting value of room temperature, after utilizing built-in signal processing unit processes, result is sent to as control signal the control input of dynamoelectric water valve 2, make it carry out synchronization action, control indoor temperature.
Controller 3 is provided with multiple I/O port, wherein, analog input port AI includes air output signal input part, dynamoelectric water valve 2 open degree feedback signal input part, rotation speed of fan feedback signal input terminal, analog output port AO includes dynamoelectric water valve 2 opening control signal outfan, rotation speed of fan control signal outfan, digital quantity input port DI includes blower fan start and stop state signal input terminal, manual auto state signal input part, failure alarm signal input, digital output port DO includes blower fan on off control signal output part, the most automatically changeover control signal outfan.
Outfan at controller 3 connects faulty alarm 6, controller 3 has feedback information processing unit, the rotation speed of fan feedback signal of fan coil 1, the open degree feedback signal of dynamoelectric water valve 2 are analyzed processing by the feedback information processing unit of controller 3, form alarm signal and export the alarm signal input of fault alarm 6, report to the police with driving malfunction alarm 6.
The signal processing unit of controller 3 has PID arithmetic processing module, this PID arithmetic processing module carries out process form air quantity difference signal to air output feedback signal and the setting air output signal of air output sensor 5, and controller 3 controls the aperture of dynamoelectric water valve 2 by air quantity difference signal.
The blower fan of fan coil 1 is the adjustable direct current brushless motor of air quantity or frequency conversion fan, dynamoelectric water valve 2 is motorized adjustment two water-through valve that can be changed valve opening by the signal of telecommunication, blower fan start stop signal, manual auto state conversion signal, and the blower fan start stop signal input of delivery controller 3 and manual auto state changing over signal inputs is inputted respectively by the operation key area of control panel 4.
Fan coil 1 uses the fan coil of routine techniques, dynamoelectric water valve 2 uses motorized adjustment water valve in routine techniques, controller 3 uses field controller or the singlechip controller of routine techniques, and control panel 4 uses the display screen of several function signals of routine techniques band input button to constitute.Air output sensor 5 is made up of the pneumatic pressure sensor of routine techniques.
Described display screen shows current indoor temperature and/or design temperature and/or air processing machine start and stop state and/or air force.Described controller 3 and control panel 4 are electrically connected by RS485 interface.
When indoor temperature setting value is 25 degree.Fan coil model is FC800, and under GB operating mode, during middle-grade air quantity, cold is 6550W, and heat is 9260W.Rotation speed of fan is adjustable, and blower fan maximum quantity of wind is 1360m3/h.
According to room load situation, air conditioning water system situation and the hydraulic characteristic(s) etc. of dynamoelectric water valve 2, the relation of air output and water valve check is set as shown in Table 1.
Table one
The operation principle of the present embodiment is as follows:
The blower fan being arranged in fan coil, for the adjustable direct current brushless motor of air quantity or frequency conversion fan, thus air quantity is adjustable.Blower fan is from indoor return air, and return air sends into indoor after the heat exchange coil heat exchange in fan coil 1.The fan static pressure of fan coil 1 is generally 10-50Pa, less than 100Pa.
Dynamoelectric water valve 2 is electric control valve, can be changed the aperture of valve, and then the negotiability of control valve by the signal of telecommunication, controls to enter the water yield of heat exchange coil.In actual application, flow detection head can be set at the water outlet of dynamoelectric water valve, detect the flow of dynamoelectric water valve by flow detection head and deliver to the flow feedback input of controller 3, controller judging the aperture of dynamoelectric water valve 2 according to flow.
Control panel 4 has display screen and operation button, coordinating of button can input the setting value of room temperature, the memory element of air output size to controller by display screen with operation, display screen can show the information such as current indoor temperature, design temperature, air processing machine start and stop state, air force.Controller has multiple input I and output O port.Wherein, analog input AI mouth includes return air temperature signal input part, open degree feedback signal input part, rotation speed of fan signal feedback input end；Analog output AO mouth includes two water-through valve aperture control output ends, rotation speed of fan control signal outfan；Digital quantity input DI mouth includes blower fan start stop signal input, manual auto state changing over signal inputs；Digital output DO mouth includes blower fan start stop signal outfan, alarm signal output ends.
Input/output between control panel 4 and controller 3 can be directly connected to or be connected by RS485 communication interface.Return air temperature is measured by return air temperature sensor and transmits to controller.
According to the current air output setting value being manually set, the signal processing unit of controller 3 calculates the spacing value of dynamoelectric water valve maximum opening, makes the dynamoelectric water valve 2 aperture under current air output be not more than this dynamoelectric water valve 2 maximum opening spacing.The relation of air output and dynamoelectric water valve 2 check is as shown in Table 1；Setting value according to current return air temperature and room temperature obtains temperature deviation, the PID module arithmetic utilizing controller 3 built-in forms temperature signal after processing, check and the temperature signal of dynamoelectric water valve 2 are sent to the mechanism of dynamoelectric water valve 2 as control signal, make it carry out synchronization action, control indoor temperature.
The display screen that the present embodiment relates to can show current indoor temperature and/or design temperature and/or air processing machine start and stop state and/or air force, reaches the effect monitored treatment effect in real time and control in real time.Controller 3 and control panel 4 can be connected by RS485 interface, are suitable for different workpiece requirements.Controller has and can control the function of conversion between frequency conversion fan manual mode and auto state by the signal instruction of operation key area, and the air output for this fan coil both can be controlled manually controlling by controller.Control panel 4 can be artificially by display screen and the setting value of operation key-press input room temperature, and it is one or more that display screen can show in the information such as current indoor temperature, design temperature, fan coil start and stop state, air force.People can pass through display screen and the setting value of operation key-press input room temperature and arrange air output size.
In the fan coil 1 that the present embodiment relates to, the speed feedback signal outfan of internal fan connects the rotation speed of fan feedback signal input terminal of controller, and the open degree feedback signal output part of dynamoelectric water valve 2 connects the open degree feedback signal input part of controller 3；The rotation speed of fan feedback signal of fan coil 1, open degree feedback signal transmission to the feedback information processing unit of controller 3 of dynamoelectric water valve 2 are analyzed processing, and are connected the alarm signal input of fault alarm after forming alarm signal or non-alarm signal by the alarm signal output ends of controller 3.Dynamoelectric water valve 2, the working condition of fan coil 1 rotating speed can be analyzed by immediate feedback to the feedback information processing unit of controller 3, dynamoelectric water valve aperture, the frequency conversion fan rotating speed practically necessary with in the middle of signal processing unit compare, as misfitted, send alarm signal to fault alarm, then send non-alarm signal to fault alarm as coincideing, reach the effect of at-once monitor immediate feedback instant alarming.
Applicant is actually used to be shown:
Fan coil supplies, backwater temperature difference is certain, and supply water temperature is the highest, and refrigerating capacity amount of decrease is the biggest, and dehumidifying effect declines.Fan coil air quantity is certain, supply water temperature is certain, during output change, refrigerating capacity changes with the change of output, add up according to part fan coil pipe properties of product, when supply water temperature is 7 DEG C, when output is reduced to 80%, refrigerating capacity is original about 92%, illustrates that when output changes the impact on refrigerating capacity is the slowest.
Fan coil supplies, backwater temperature difference is certain, and when supply water temperature raises, refrigerating capacity is along with minimizing, and according to statistics, when supply water temperature raises 1 DEG C, refrigerating capacity reduces about 10%, and supply water temperature is the highest, and amount of decrease is the biggest, dehumidifying effect decline.
Water supply conditions is certain, and when fan coil air quantity changes, refrigerating capacity and air-treatment enthalpy difference are along with change, and usually refrigerating capacity reduces, and enthalpy difference increases, and specific refrigerating effect blower fan power consumption change is little.
When the fan coil water-in and water-out temperature difference increases, discharge reduction, the heat transfer coefficient of heat exchange coil is along with reduction.It addition, heat transfer temperature difference also there occurs change, therefore, the refrigerating capacity of fan coil reduces with the increase of supply backwater temperature difference, is 7 DEG C when supply water temperature according to statistics, and for, backwater temperature difference in time bringing up to 7 DEG C for 5 DEG C, refrigerating capacity can reduce about 17%.
Thermal environment condition refers to the comprehensive function that the thermal comfort of human body is occurred by physical parameter.These physical parameters mainly include the relative humidity of air dry-bulb temperature, air, speed air flow, mean radiant temperature, the metabolism amount of human body and clothing etc. six.Wherein, temperature and the flowing velocity of air is to evaluate the important parameter of the thermal environment comfort conditions that fan coil is provided.
Specific embodiment 2:
Except cold value during middle-grade air quantity under indoor temperature setting value, fan coil model, GB operating mode in the present embodiment, outside heat, blower fan maximum quantity of wind value, air output are different from the relation of water valve check and specific embodiment 1, remainder is identical with specific embodiment 1.
Indoor temperature setting value is 23 degree.Fan coil model is FC600, and under GB operating mode, during middle-grade air quantity, cold is 4120W, and heat is 6040W.Rotation speed of fan is adjustable, and blower fan maximum quantity of wind is 1020m3/h.
According to room load situation, air conditioning water system situation and water valve hydraulic characteristic(s) etc., (remembering that air output accounts for the ratio of maximum quantity of wind is M to arrange relation such as the following formula of air output and water valve check, water valve check is X, thus the span of M and X is 0-1):
X=M2.5
The present embodiment principle:
Except the spacing value of water valve maximum opening is accounted for the ratio-dependent of maximum quantity of wind according to above formula by air output, remainder is identical with specific embodiment 1.According to current return air temperature and the deviation of the setting value of room temperature, PID arithmetic is utilized to form temperature signal after processing, water valve check and temperature signal are sent to the mechanism of two water-through valves as control signal so that it is carry out synchronization action, control outside indoor temperature.
The above; it is only this utility model preferably specific embodiment; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the range of this utility model discloses; according to the technical solution of the utility model and conceive equivalent or change in addition, broadly fall into protection domain of the present utility model.
Claims (9)
1. the fan coil temperature control equipment of water valve check is controlled according to air output, including fan coil (1), dynamoelectric water valve (2), controller (3) and control panel (4), fan coil is provided with blower fan in (1)；It is characterized in that: be provided with air output sensor (5) in the air-supply passage of fan coil (1), controller (3) has signal processing unit and feedback information processing unit and several input end of analog signal, several analog signal outputs, several digital signal input ends and several digital signal output ends；Air output sensor (5) has air volume test head and air volume signal outfan, control panel (4) has display screen and operation button, operation button, as manual ringing input, inputs the setting value of room temperature, the spacing value of dynamoelectric water valve (2) aperture；The signal output part of control panel (4) connects the signal input part of controller (3), the air volume signal outfan of air output sensor (5) connects the air output feedback signal input terminal of controller (3), the rotation speed of fan feedback signal output of fan coil (1) connects the rotation speed of fan feedback signal input terminal of controller (3), and the open degree feedback signal output part of dynamoelectric water valve (2) connects the open degree feedback signal input part of controller (3)；The air output feedback signal of air output sensor (5) is contrasted by controller (3) with setting air output signal, the opening control signal of output dynamoelectric water valve (2), to control the aperture of dynamoelectric water valve (2) in the check set, form the fan coil temperature control system controlling water valve check according to air output.
Fan coil temperature control equipment the most according to claim 1, it is characterized in that: in the return air channel of fan coil (1), be provided with return air temperature sensor, return air temperature sensor has temperature detecting head and temperature signal outfan, the temperature signal outfan of return air temperature sensor connects the temperature feedback signal input of controller (3), controller (3) is according to current return air temperature and the deviation of the setting value of room temperature, after utilizing built-in signal processing unit processes, result is sent to as control signal the control input of dynamoelectric water valve (2), it is made to carry out synchronization action, control indoor temperature.
Fan coil temperature control equipment the most according to claim 1 and 2, it is characterized in that: controller (3) is provided with multiple I/O port, wherein, analog input port AI includes air output signal input part, dynamoelectric water valve (2) open degree feedback signal input part, rotation speed of fan feedback signal input terminal, analog output port AO includes dynamoelectric water valve (2) opening control signal outfan, rotation speed of fan control signal outfan, digital quantity input port DI includes blower fan start and stop state signal input terminal, manual auto state signal input part, failure alarm signal input, digital output port DO includes blower fan on off control signal output part, the most automatically changeover control signal outfan.
Fan coil temperature control equipment the most according to claim 1 and 2, it is characterized in that: the outfan at controller (3) connects faulty alarm (6), controller (3) has feedback information processing unit, rotation speed of fan feedback signal, the open degree feedback signal of dynamoelectric water valve (2) of fan coil (1) are analyzed processing by the feedback information processing unit of controller (3), form alarm signal and export the alarm signal input of fault alarm (6), report to the police with driving malfunction alarm (6).
Fan coil temperature control equipment the most according to claim 1 and 2, it is characterized in that: the signal processing unit of controller (3) has PID arithmetic processing module, this PID arithmetic processing module carries out process form air quantity difference signal to air output feedback signal and the setting air output signal of air output sensor (5), and controller (3) controls the aperture of dynamoelectric water valve (2) by air quantity difference signal.
Fan coil temperature control equipment the most according to claim 1 and 2, it is characterized in that: the blower fan of fan coil (1) is the adjustable direct current brushless motor of air quantity or frequency conversion fan, dynamoelectric water valve (2) is motorized adjustment two water-through valve that can be changed valve opening by the signal of telecommunication, blower fan start stop signal, manual auto state conversion signal, and the blower fan start stop signal input of delivery controller (3) and manual auto state changing over signal inputs is inputted respectively by the operation key area of control panel (4).
Fan coil temperature control equipment the most according to claim 1 and 2, it is characterised in that: air output sensor (5) is made up of pressure transducer.
Fan coil temperature control equipment the most according to claim 1 and 2, it is characterised in that: described display screen display current indoor temperature and/or design temperature and/or air processing machine start and stop state and/or air force.
Fan coil temperature control equipment the most according to claim 1 and 2, it is characterised in that: described controller (3) and control panel (4) are electrically connected by RS485 interface.
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| CN201620152777.4U CN205425303U (en) | 2016-02-28 | 2016-02-28 | According to spacing fan coil temperature control device of delivered air quantity control water valve aperture |
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| CN201620152777.4U CN205425303U (en) | 2016-02-28 | 2016-02-28 | According to spacing fan coil temperature control device of delivered air quantity control water valve aperture |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588288A (en) * | 2016-02-28 | 2016-05-18 | 广州市设计院 | Temperature control device controlling opening degree limit of water valve according to supply air volume for fan coil |
| CN107560122A (en) * | 2017-09-12 | 2018-01-09 | 深圳达实智能股份有限公司 | A kind of zoned air method and device of hospital ward fan coil |
| CN114110916A (en) * | 2021-11-23 | 2022-03-01 | 珠海格力电器股份有限公司 | Air conditioner water valve operation state detection method and device, storage medium and air conditioner |
-
2016
- 2016-02-28 CN CN201620152777.4U patent/CN205425303U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588288A (en) * | 2016-02-28 | 2016-05-18 | 广州市设计院 | Temperature control device controlling opening degree limit of water valve according to supply air volume for fan coil |
| CN107560122A (en) * | 2017-09-12 | 2018-01-09 | 深圳达实智能股份有限公司 | A kind of zoned air method and device of hospital ward fan coil |
| CN107560122B (en) * | 2017-09-12 | 2020-02-07 | 深圳达实智能股份有限公司 | Method and device for zoned air supply of fan coil in hospital ward |
| CN114110916A (en) * | 2021-11-23 | 2022-03-01 | 珠海格力电器股份有限公司 | Air conditioner water valve operation state detection method and device, storage medium and air conditioner |
| CN114110916B (en) * | 2021-11-23 | 2023-02-28 | 珠海格力电器股份有限公司 | Air conditioner water valve operation state detection method and device, storage medium and air conditioner |
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