CN205425302U - Fan coil temperature control device based on match control water valve aperture with water pipe pipe diameter - Google Patents
Fan coil temperature control device based on match control water valve aperture with water pipe pipe diameter Download PDFInfo
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- CN205425302U CN205425302U CN201620152577.9U CN201620152577U CN205425302U CN 205425302 U CN205425302 U CN 205425302U CN 201620152577 U CN201620152577 U CN 201620152577U CN 205425302 U CN205425302 U CN 205425302U
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Abstract
The utility model relates to a fan coil temperature control device based on match control water valve aperture with water pipe pipe diameter, through setting up temperature sensor in fan coil return air entrance, indoor temperature is confirmed according to the temperature sensor measurement value to the controller, compare its ambient temperature setting value with the artificial input of control panel end, the discrepancy that obtains indoor temperature and set for the temperature, utilize the PID operation to obtain electric water valve aperture data and fan rotational speed data, trun into control signal sent simultaneously to electric water valve and fan frequency converter to, make the two synchronization action, the constitution is according to the deviation automatically regulated fan rotational speed of indoor temperature and temperature setting value and the fan coil temperature control structure of electric water valve aperture, electric water valve receives the spacing restriction of aperture at the automatically regulated in -process all the time, and the aperture is spacing to be confirmed with the matching relation of water pipe pipe diameter by fan coil. The utility model discloses can improve the water heat transfer difference in temperature stability of the terminal branch road of traditional fan coil, have energy -conserving high -efficient, the heat transfer is stable and automatically regulated's characteristics.
Description
Technical field
This utility model relates to a kind of based on the fan coil temperature control equipment with water pipe match of pipe diameter control water valve aperture, belongs 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 imports and exports the temperature difference simultaneously 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 chilled water system, it is necessary for limiting the phenomenon of " big flow, the little temperature difference ", it is ensured that the heat transfer effect of end and rational hydraulic equilibrium performance.
The chilled-water flow of fan coil end branch is affected by the Water path valve resistance etc. of water resistance, the water resistance of fan coil water inlet pipe and water outlet pipe and the fan coil of fan coil simultaneously.Wherein, the water resistance of fan coil water inlet pipe and water outlet pipe includes the water resistance of on-way resistance and local resistance, and on-way resistance is mainly affected by water pipe caliber and pipe range.Owing to the size of valve is that the caliber according to water pipe is chosen, therefore the size of Water path valve water resistance is also affected by the caliber of water inlet pipe and water outlet pipe.In actual application, when water pipe caliber relative to fan coil need flow for excessive or too small time, the aperture of valve just should be relevant with the caliber of water pipe；Otherwise, when needing the heat exchange amount regulating this section of end branch, if suddenly opening rapid closing valve, the water heat transfer temperature difference of the resistance in water route and this end branch also can suddenly rise and suddenly drop, and affects the control stability of whole chilled water system.
The fan coil pipe structure of prior art, owing to being not provided with controlling the structure of water valve check according to fan coil and its water pipe match of pipe diameter relation, therefore when existence needs the heat exchange amount regulating this section of end branch, suddenly rapid closing valve is opened, cause the resistance in water route and the water heat transfer temperature difference of this end branch to neglect and rise fall suddenly, affect the defect of the control stability of whole chilled water system.
Utility model content
The purpose of this utility model, it is to there is the water heat transfer temperature difference of the resistance in water route and this end branch to neglect and rise, in order to solve existing fan coil pipe structure, the problem suddenly dropping, affecting the control stability of whole chilled water system, there is provided a kind of based on the fan coil temperature control equipment controlling water valve aperture with water pipe match of pipe diameter, this device, by controlling the maximum opening of dynamoelectric water valve and setting the actual aperture of dynamoelectric water valve according to the deviation value of indoor temperature Yu design temperature further, has the feature of the accurately stability of regulation fan coil water pipe flow, raising chilled water system.
The purpose of this utility model can be reached by following technical scheme:
Based on the fan coil temperature control equipment with water pipe match of pipe diameter control water valve aperture, including fan coil, dynamoelectric water valve, controller and control panel, its construction features is:
1) at fan coil return air inlet, it is provided with return air temperature sensor, in fan coil, is provided with blower fan；Dynamoelectric water valve is arranged on fan coil water inlet end, and the model of fan coil and water pipe match of pipe diameter are spacing with the maximum controlling dynamoelectric water valve aperture, and controller controls the aperture of dynamoelectric water valve and regulates in the range of check；Constitute the fan coil temperature control system being automatically adjusted dynamoelectric water valve aperture according to fan coil and water pipe match of pipe diameter；
2) under the model of fan coil is FC800, when middle-grade air quantity, cold is 6550W, and heat is 9260W, and blower fan maximum quantity of wind is 1360m3/ h, being designed for backwater temperature difference is 5 degree；Or fan coil model is FC400, when middle-grade air quantity, cold is 3290W, and heat is 4530W, and blower fan maximum quantity of wind is 680m3/ h, being designed for backwater temperature difference is 5 degree；When the water pipe caliber that fan coil 1 connects is 1 inch or less, the check of dynamoelectric water valve can reach the 100% of water valve aperture；When fan coil connect water pipe caliber be more than 1 inch be less than or equal to 1 inch half time, the check of dynamoelectric water valve can reach the 80% of water valve aperture；When the water pipe caliber that fan coil 1 connects is more than 1 inch, the check of dynamoelectric water valve is the 60% of water valve aperture.
In actual application, controller the maximum controlling dynamoelectric water valve aperture according to the water pipe match of pipe diameter of fan coil is spacing, to control the aperture regulation of dynamoelectric water valve in the range of check；Controller is by detecting the output signal of return air temperature sensor, it is judged that indoor temperature and the deviation of design temperature, carries out with the aperture regulation and rotation speed of fan regulation synchronization controlling dynamoelectric water valve；Temperature sets and is inputted by control panel and be sent to controller, the data that controller feeds back according to return air temperature sensor determine indoor temperature, and desired temperature and the indoor temperature data of acquisition are compared process, obtain rotation speed of fan control signal and dynamoelectric water valve opening control signal, constitute the fan coil temperature control system being automatically adjusted dynamoelectric water valve aperture according to the water pipe match of pipe diameter of fan coil.
The purpose of this utility model reaches also by following technical scheme:
Further, controller is provided with multiple I/O port, wherein, analog input port AI includes return air temperature 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, the signal transmission of the analog input port AI and analog output port AO of described controller together constitutes the signal transmission structure of automatic cycling operating.
Further, controller determines indoor temperature according to the data that return air temperature sensor feeds back, and the desired temperature obtained and indoor temperature data separate PID arithmetic is processed, and obtains rotation speed of fan control signal and dynamoelectric water valve opening control signal.
Further, described dynamoelectric water valve is electric control valve, and valve opening can be regulated by the signal of telecommunication, and its power supply is directly supplied by controller power source, and can control valve opening by the control signal of controller.
Further, described water valve check is before device works in writing controller, and controller persistently sends valve opening control signal according to variation of ambient temperature, it is ensured that valve opening rate of change is relatively low, and valve maximum opening is not more than check.
Further, described control panel includes display screen and operation button, can be by by key assignments room temperature, and it is one or more that display screen can show in room Current Temperatures, design temperature, fan coil start and stop state, air force and dynamoelectric water valve aperture.
Further, described blower fan is direct current brushless motor or frequency conversion fan, and when fan coil normally works, fan static pressure is 10-50Pa, and fan static pressure maximum is less than 100Pa.
This utility model has a beneficial effect highlighted below:
1, this utility model is provided with return air temperature sensor at fan coil return air inlet, is provided with blower fan in fan coil；The maximum being controlled dynamoelectric water valve aperture according to the water pipe match of pipe diameter of fan coil by controller is spacing, to control the aperture regulation of dynamoelectric water valve in the range of check；Controller is by detecting the output signal of return air temperature sensor, it is judged that indoor temperature and the deviation of design temperature, carries out with the aperture regulation and rotation speed of fan regulation synchronization controlling dynamoelectric water valve；Temperature sets and is inputted by control panel and be sent to controller, the data that controller feeds back according to return air temperature sensor determine indoor temperature, and desired temperature and the indoor temperature data of acquisition are compared process, obtain rotation speed of fan control signal and dynamoelectric water valve aperture, constitute the fan coil temperature control system being automatically adjusted rotation speed of fan and dynamoelectric water valve aperture according to the deviation of indoor temperature and desired temperature；Therefore, it is possible to the water heat transfer temperature difference solving resistance and this end branch that existing fan coil pipe structure exists water route is neglected and risen the problem suddenly dropping, affecting the control stability of whole chilled water system, there is the beneficial effect accurately regulating fan coil water pipe flow, improving the stability of chilled water system.
2, this utility model is spacing by dynamoelectric water valve is set maximum opening, is prevented effectively from the chilled water phenomenon of " big flow, the little temperature difference ", and while ensureing to provide the heat exchange amount needed, the chilled-water flow of fan coil is relatively low, chilled water system good energy-conserving effect.
3, this utility model is on the basis of limiting dynamoelectric water valve maximum opening, controller adjusts dynamoelectric water valve aperture and rotation speed of fan further according to the ambient temperature of change, improve the heat transfer temperature difference of chilled water system, and turn avoid chilled-water flow beyond demand, the effectively traditional dynamoelectric water valve of solution is suddenly opened and is suddenly closed the water heat transfer temperature difference the caused fall suddenly of liter suddenly, heat-exchange performance is stable, and the chilled water temperature difference is relatively big, and heat exchange property is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of a specific embodiment of the present utility model.
Detailed description of the invention
With specific embodiment, embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Specific embodiment 1:
With reference to Fig. 1, the present embodiment includes fan coil 1, dynamoelectric water valve 2, controller 3 and control panel 4, is provided with return air temperature sensor 5, is provided with blower fan in fan coil 1 at fan coil 1 return air inlet；Dynamoelectric water valve 2 is arranged on fan coil 1 water inlet end, and the model of fan coil 1 and water pipe match of pipe diameter are spacing with the maximum controlling dynamoelectric water valve 2 aperture, and controller 3 controls the aperture of dynamoelectric water valve 2 and regulates in the range of check；Constitute fan coil 1 temperature control system being automatically adjusted dynamoelectric water valve 2 aperture according to fan coil 1 and water pipe match of pipe diameter；The model of fan coil 1 is under FC800, and when middle-grade air quantity, cold is 6550W, and heat is 9260W, and blower fan maximum quantity of wind is 1360m3/ h, being designed for backwater temperature difference is 5 degree；When the water pipe caliber that fan coil 1 connects is 1 inch or less, the check of dynamoelectric water valve 2 can reach the 100% of water valve aperture；When fan coil 1 connect water pipe caliber be more than 1 inch be less than or equal to 1 inch half time, the check of dynamoelectric water valve 2 can reach the 80% of water valve aperture；When the water pipe caliber that fan coil 1 connects is more than 1 inch, the check of dynamoelectric water valve 2 is the 60% of water valve aperture.
In the present embodiment:
Dynamoelectric water valve 2 is electric control valve, and valve opening can be regulated by the signal of telecommunication, and its power supply is directly supplied by controller 3 power supply, and can control valve opening by the control signal of controller 3.The signal transmission of the analog input port AI and analog output port AO of described controller 3 together constitutes the signal transmission structure of automatic cycling operating.
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.
The monitoring of all parts be can be displayed on control panel 4 by controller 3, control panel 4 is made up of display screen and operation button, can be by operation button design temperature, also can be by operation key-press input control signal, as to the on off control of blower fan, manual auto-changeover control etc.；Display screen can show multiple data simultaneously, such as room Current Temperatures, design temperature, fan coil 1 start and stop state, air force and dynamoelectric water valve 2 aperture, also can arrange and only show one of which.
Controller 3 carries multiple signal transmission port, wherein analog signals transmission port includes that analog input port AI and analog output port AO two kinds, return air temperature sensor 5 signal output part, blower motor tach signal outfan and dynamoelectric water valve 2 opening amount signal outfan connect controller 3AI signal input port；Blower motor inverter control signal input and dynamoelectric water valve 2 aperture control input and connect controller 3AO signal output port；
Digital quantity signal transmission port includes that DI and DO two kinds, blower fan on off controller 3 signal output part, manual automatic switchover device signal output part and automatic alarm for fault signal output part connect controller 3DI signal input part；Blower fan on off controller 3 signal input part and manual automatic switchover device signal input part connect controller 3DO signal output part (note: for simplifying utility model structure, the prior art such as alarm, manual automatic switchover device not shown in accompanying drawing)；Controller 3 by DI port can the start and stop state of supervising device, manual automatic control state and the running status of automatic alarm for fault, control signal can be exported by DO port, blower fan be started or stoped, is manually or automatically controlled switching.
The signal transmission of the analog input port AI and analog output port AO of controller 3 together constitutes the signal transmission structure of device automatic cycling operating.The signal transmission structure of device automatic cycling operating, provides lasting variable signal source for device at automatic cycling operating and adaptation environmental change, makes device can automatically adjust self operating state according to variable signal.Controller 3, when calculating rotation speed of fan and dynamoelectric water valve 2 aperture, is determined indoor temperature according to the data of return air temperature sensor 5 feedback, and utilizes the deviation value of indoor environment temperature and design temperature to be obtained by PID arithmetic.Return air temperature sensor 5 test constantly indoor environment temperature to controller 3 feedback data during work, when indoor environment temperature changes, controller 3 re-starts the calculating of indoor temperature and design temperature deviation value, and utilize new deviation value to carry out PID arithmetic process, obtain new rotation speed of fan control signal and dynamoelectric water valve 2 opening control signal, readjust rotation speed of fan and the aperture of dynamoelectric water valve 2, reach according to the running of indoor temperature change generated in case automatic regulating apparatus to improve the effect of chilled water system stability.
Water valve check is before device works in writing controller 3, controller 3 persistently sends valve opening control signal according to variation of ambient temperature, owing to variation of ambient temperature speed is slower, the valve opening changed therewith the most slowly adjusts, guarantee that valve opening rate of change is relatively low, it is prevented effectively from valve and suddenly opens the situation generation of rapid pass, guarantee that water pipe end branch heat transfer temperature difference will not rise suddenly suddenly to drop, improve the heat exchange stability of chilled water system, simultaneously, valve is when regulating aperture, and valve maximum opening is not more than check.
Blower fan in fan coil 1 is direct current brushless motor or frequency conversion fan, in order to the controller 3 adjustment to rotation speed of fan, and when fan coil 1 normally works, fan static pressure is 10-50Pa, and fan static pressure maximum is 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.
It is under FC800 that this utility model is applied in fan coil 1 model, 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.Being designed for backwater temperature difference is 5 degree.This fan coil 1 water valve check relation table is as follows:
| Water pipe caliber (mm) | Water valve check (%) |
| ≤DN25 | 100 |
| DN25～DN40 | 80 |
| ＞ DN40 | 60 |
When the water pipe caliber that fan coil 1 connects is 25mm or following, the check of dynamoelectric water valve 2 can reach the 100% of water valve aperture；When fan coil 1 connect water pipe caliber be more than 25mm be less than or equal to 40mm time, the check of dynamoelectric water valve 2 can reach the 80% of water valve aperture；When the water pipe caliber that fan coil 1 connects is 40mm or above, the check of dynamoelectric water valve 2 is the 60% of water valve aperture.
Test shows: determine water pipe pipe diameter size, i.e. determine water valve check, in air-conditioning cold load range, measure the impact on fan coil 1 heat exchange property of each design temperature, under each desired temperature, when indoor temperature is not up to design temperature, controller 3 is according to current return air temperature and the deviation of room temperature set point, after utilizing PID arithmetic to process, operation result is converted to control signal and is sent to the converter of dynamoelectric water valve and blower fan, control water valve aperture and rotation speed of fan simultaneously, adjust indoor temperature, during dynamoelectric water valve 2 aperture regulates, maximum opening is not more than check, there is not " big flow, the little temperature difference " phenomenon, water yield cold all reaches design conditions.
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:
The feature of the present embodiment is: fan coil 1 model is FC400, and under GB operating mode, during middle-grade air quantity, cold is 3290W, and heat is 4530W.Rotation speed of fan is adjustable, and blower fan maximum quantity of wind is 680m3/h.Being designed for backwater temperature difference is 5 degree.This fan coil 1 water valve check relation table is as follows:
| Water pipe caliber (mm) | Water valve check (%) |
| ≤DN20 | 100 |
| DN20～DN40 | 80 |
| ＞ DN40 | 60 |
When the water pipe caliber that fan coil 1 connects is 20mm or following, the check of dynamoelectric water valve 2 can reach the 100% of water valve aperture；When fan coil 1 connect water pipe caliber be more than 20mm be less than or equal to 40mm time, the check of dynamoelectric water valve 2 can reach the 80% of water valve aperture；When the water pipe caliber that fan coil 1 connects is 40mm or above, the check of dynamoelectric water valve 2 is the 60% of water valve aperture.
Determine water pipe pipe diameter size, i.e. determine water valve check, in air-conditioning cold load range, measure the impact on fan coil 1 heat exchange property of each design temperature, under each desired temperature, when indoor temperature is not up to design temperature, controller 3 is according to current return air temperature and the deviation of room temperature set point, after utilizing PID arithmetic to process, operation result is converted to control signal and is sent to water valve and fan frequency converter, control water valve aperture and rotation speed of fan simultaneously, adjust indoor temperature, during the regulation of dynamoelectric water valve 2 aperture, maximum opening is not more than check, also there is not " big flow, the little temperature difference " phenomenon, water yield cold all reaches design conditions.
This utility model is in use, controller 3 is less than check all the time to automatically adjusting of dynamoelectric water valve 2, effectively control the fan coil 1 Inlet and outlet water temperature difference, avoid the phenomenon occurring the temperature difference too low, and in the case of heat exchange amount abundance, fan coil 1 chilled-water flow, without departing from the flow needed, makes the actual Inlet and outlet water temperature difference equivalent in designed temperature difference, improves energy-saving effect and the heat exchange stability of air conditioning system.
The above is to be explained in detail preferred implementation of the present utility model in conjunction with the accompanying drawings and embodiments; but this utility model is not limited to above-mentioned embodiment; in the ken that those of ordinary skill in the art are possessed; the various changes made without departing from this utility model objective with equivalent or change etc., broadly fall into the scope of this utility model protection.
Claims (8)
1. based on the fan coil temperature control equipment with water pipe match of pipe diameter control water valve aperture, including fan coil (1), dynamoelectric water valve (2), controller (3) and control panel (4), it is characterised in that:
1) at fan coil (1) return air inlet, it is provided with return air temperature sensor (5), in fan coil (1), is provided with blower fan；Dynamoelectric water valve (2) is arranged on fan coil (1) water inlet end, the model of fan coil (1) and water pipe match of pipe diameter are spacing with the maximum controlling dynamoelectric water valve (2) aperture, and controller (3) controls the aperture of dynamoelectric water valve (2) and regulates in the range of check；Constitute fan coil (1) temperature control system being automatically adjusted dynamoelectric water valve (2) aperture according to fan coil (1) and water pipe match of pipe diameter；
2) model of fan coil (1) is under FC800, and when middle-grade air quantity, cold is 6550W, and heat is 9260W, and blower fan maximum quantity of wind is 1360m3/ h, being designed for backwater temperature difference is 5 degree；Or fan coil (1) model is FC400, when middle-grade air quantity, cold is 3290W, and heat is 4530W, and blower fan maximum quantity of wind is 680m3/ h, being designed for backwater temperature difference is 5 degree；When the water pipe caliber that fan coil (1) connects is 1 inch or less, the check of dynamoelectric water valve (2) can reach the 100% of water valve aperture；When the water pipe caliber that fan coil (1) connects be more than 1 inch be less than or equal to 1 inch half time, the check of dynamoelectric water valve (2) can reach the 80% of water valve aperture；When the water pipe caliber that fan coil (1) connects is for during more than 1 inch, and the check of dynamoelectric water valve (2) is the 60% of water valve aperture.
The most according to claim 1 based on the fan coil temperature control equipment controlling water valve aperture with water pipe match of pipe diameter, it is characterized in that: controller (3) is provided with multiple I/O port, wherein, analog input port AI includes return air temperature 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.
It is the most according to claim 2 based on the fan coil temperature control equipment controlling water valve aperture with water pipe match of pipe diameter, it is characterised in that: the signal transmission of the analog input port AI and analog output port AO of described controller (3) together constitutes the signal transmission structure of automatic cycling operating.
The most according to claim 1 based on the fan coil temperature control equipment controlling water valve aperture with water pipe match of pipe diameter, it is characterized in that: the data that controller (3) feeds back according to return air temperature sensor (5) determine indoor temperature, and the desired temperature obtained and indoor temperature data separate PID arithmetic are processed, obtain rotation speed of fan control signal and dynamoelectric water valve (2) opening control signal.
The most according to claim 1 based on the fan coil temperature control equipment controlling water valve aperture with water pipe match of pipe diameter, it is characterized in that: described dynamoelectric water valve (2) is electric control valve, valve opening is regulated by the signal of telecommunication, its power supply is directly supplied by controller (3) power supply, and controls valve opening by the control signal of controller (3).
The most according to claim 1 based on the fan coil temperature control equipment controlling water valve aperture with water pipe match of pipe diameter, it is characterized in that: described water valve check is before device works in writing controller (3), controller (3) persistently sends valve opening control signal according to variation of ambient temperature, guaranteeing that valve opening rate of change is relatively low, valve maximum opening is not more than check.
The most according to claim 1 based on the fan coil temperature control equipment controlling water valve aperture with water pipe match of pipe diameter, it is characterized in that: described control panel (4) includes display screen and operation button, can be by by key assignments room temperature, it is one or more that display screen can show in room Current Temperatures, design temperature, fan coil (1) start and stop state, air force and dynamoelectric water valve (2) aperture.
The most according to claim 1 based on the fan coil temperature control equipment controlling water valve aperture with water pipe match of pipe diameter, it is characterized in that: described blower fan is direct current brushless motor or frequency conversion fan, during fan coil (1) normally work, fan static pressure is 10-50Pa, and fan static pressure maximum is less than 100Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152577.9U CN205425302U (en) | 2016-02-28 | 2016-02-28 | Fan coil temperature control device based on match control water valve aperture with water pipe pipe diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620152577.9U CN205425302U (en) | 2016-02-28 | 2016-02-28 | Fan coil temperature control device based on match control water valve aperture with water pipe pipe diameter |
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| Publication Number | Publication Date |
|---|---|
| CN205425302U true CN205425302U (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620152577.9U Active CN205425302U (en) | 2016-02-28 | 2016-02-28 | Fan coil temperature control device based on match control water valve aperture with water pipe pipe diameter |
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|---|---|
| CN (1) | CN205425302U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605744A (en) * | 2016-02-28 | 2016-05-25 | 广州市设计院 | Fan coil temperature control device matched with pipe diameter of water pipe and used for controlling opening of water valve |
| CN112771315A (en) * | 2018-09-28 | 2021-05-07 | 三菱电机株式会社 | Air conditioner |
-
2016
- 2016-02-28 CN CN201620152577.9U patent/CN205425302U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605744A (en) * | 2016-02-28 | 2016-05-25 | 广州市设计院 | Fan coil temperature control device matched with pipe diameter of water pipe and used for controlling opening of water valve |
| CN112771315A (en) * | 2018-09-28 | 2021-05-07 | 三菱电机株式会社 | Air conditioner |
| CN112771315B (en) * | 2018-09-28 | 2022-04-29 | 三菱电机株式会社 | Air conditioner |
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