CN204880547U - Central air conditioning fan coil unsteady flow volume temperature control device - Google Patents
Central air conditioning fan coil unsteady flow volume temperature control device Download PDFInfo
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- CN204880547U CN204880547U CN201520626972.1U CN201520626972U CN204880547U CN 204880547 U CN204880547 U CN 204880547U CN 201520626972 U CN201520626972 U CN 201520626972U CN 204880547 U CN204880547 U CN 204880547U
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 230000001105 regulatory effect Effects 0.000 claims abstract description 13
- 238000013461 design Methods 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000008400 supply water Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides a central air conditioning fan coil unsteady flow volume temperature control device, include: an operating panel that is used for the temperature to set for and show, a temperature sensor for detecting the return air temperature, a become flow controller for being based on the electric two way valve aperture is controlled with setting for the temperature to the return air temperature that detects, according to become the electric two way valve of flow controller's control signal regulating pondage, operating panel, temperature sensor, change flow controller and electric two way valve equallys divide out independent setting, operating panel, temperature sensor all with it connects to become flow controller, become flow controller with electric two way valve connects. The utility model provides a central air conditioning fan coil unsteady flow volume temperature control device can accurate measurement indoor temperature and the automatically regulated amount of wind, water yield bilinearity regulation and control technique, realizes that indoor temperature carries out accurate regulation and control, indoor fan motor automatic speed adjustment, and it becomes flow control to supply water simultaneously, realizes two energy saving and consumption reduction purposes.
Description
Technical field
The utility model relates to a kind of central air conditioning fan coil unit variable-flow temperature control equipment.
Background technology
Existing central air conditioning fan coil unit temperature controller is made up of liquid crystal temperature controller and dibit electric two-way valve, wherein, temperature control sensor for detecting room temperature is also integrated in liquid crystal temperature controller, is arranged on the gate sidewall body of air conditioning area.The control principle of existing temperature controller: gather room actual temperature by the temperature control sensor being integrated in temperature controller, compare with design temperature, to compare computing, control the open and close action of dibit electric two-way valve, realize room temperature control, manually set fan coil motor simultaneously and regulate air output.The equipment and temperature sensor, control element, LCDs become one.Existing central air conditioning fan coil unit temperature controller has following shortcoming:
1, temperature sensor and other element are arranged on same circuit board, and temperature sensor is subject to the warming-up effect of other element, cannot detect room actual temperature accurately;
2, due to display screen, operation push-button, design on control circuit on one device, having limited to the position of installing must in the position of operation easy to use, its position of installing is the position, dead angle of space air circulation, the temperature of air conditioning area intuitively cannot be detected accurately, cause on the temperature that detects and actual return air temperature error 2 ~ 4 DEG C, cannot realize controlling accurately room temperature setting value ± 1 DEG C in;
3, existing controller of central air-conditioning fan coil can not the amount of water required under linear regulation different load, make the supply backwater temperature difference of equipment cannot be constant in design load, supply backwater temperature difference only has about 2 ~ 3.6 degree substantially, the condition that air conditioning water supply backwater temperature difference >=4 DEG C that can not reach " GB/T17981-2007 " " air handling system economical operation " national Specification are run to meet systematic economy.
Utility model content
Based on above deficiency, the technical problems to be solved in the utility model is to provide a kind of central air conditioning fan coil unit variable-flow temperature control equipment, can Measurement accuracy indoor temperature indoor temperature is regulated, can according to the indoor Real-time Load supply requirement water yield as required, realize the basic condition of central air conditioning water system Effec-tive Function, reach energy-saving and cost-reducing object.
For solving above technical problem, the utility model have employed following technical scheme:
A kind of central air conditioning fan coil unit variable-flow temperature control equipment, comprising:
For the guidance panel that temperature sets and shows;
For detecting the temperature sensor of return air temperature;
For controlling the vari-able flow control device of electric two-way valve aperture according to the return air temperature detected and design temperature;
According to the electric two-way valve of the control signal regulating pondage of described vari-able flow control device;
Described guidance panel, temperature sensor, vari-able flow control device and described electric two-way valve are all separately independent to be arranged, and described guidance panel, temperature sensor are all connected with described vari-able flow control device, and described vari-able flow control device is connected with described electric two-way valve.
Described temperature sensor is arranged in the air-intaking box of fan coil.
Described electric two-way valve comprises the first electric two-way valve regulating cold-water return amount and the second electric two-way valve regulating hot water backwater's amount, and described first electric two-way valve is all connected with described vari-able flow control device with described second electric two-way valve.
Be provided with the first relay group between described vari-able flow control device and described first electric two-way valve, between described vari-able flow control device and described second electric two-way valve, be provided with the second relay group.
Described first electric two-way valve and described second electric two-way valve are floating type electric two-way valve.
Described vari-able flow control device is also connected with blower fan.
The 3rd relay group controlling rotation speed of fan is also connected with between described blower fan and described vari-able flow control device.
Adopt above technical scheme, the beneficial effect acquired by the utility model is:
1, adopt split-type design, temperature sensor can not be subject to the impact of the heating of other components and parts, and can be arranged in the air-intaking box of the fan coil of central air-conditioning, can Measurement accuracy return air temperature, realize room temperature and design temperature is constant in ± 1 DEG C, solve and cause the too high or too low phenomenon of room temperature because temperature control is inaccurate, room temperature control accuracy improves 2 ~ 4 degree, according to industry technology data, under cooling operating mode, room temperature is often low 1 degree, air-conditioning power consumption improves 5 ~ 8%, this control device is by changing the structure of product, bring energy-saving and cost-reducing effect,
2, vari-able flow control technology is applied, ensure that the supply backwater temperature difference of central air conditioner system is within the scope of design load, solve an industry difficult problem for " the little temperature difference of large discharge " of current central air conditioning water system, after increasing supply backwater temperature difference, the quantity of circulating water of minimizing system, reduce the power consumption that quantity of circulating water directly reduces water pump, realize central air conditioner system Effec-tive Function and take a firm foundation, reach energy-saving and emission-reduction consumption reduction object.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, technology of the present utility model is described in further detail:
Fig. 1 is the circuit theory diagrams of the utility model central air conditioning fan coil unit variable-flow temperature control equipment.
Detailed description of the invention
As shown in Figure 1, the utility model provides a kind of central air conditioning fan coil unit variable-flow temperature control equipment, comprising: the guidance panel 1 setting for temperature and show; For detecting the temperature sensor 2 of return air temperature; For controlling the vari-able flow control device 3 of electric two-way valve aperture according to the return air temperature detected and design temperature; According to the electric two-way valve of the control signal regulating pondage of vari-able flow control device 3; Guidance panel 1, temperature sensor 2, vari-able flow control device 3 and electric two-way valve are all separately independent to be arranged, and guidance panel 1, temperature sensor 2 are all connected with vari-able flow control device 3, and vari-able flow control device 3 is connected with electric two-way valve.
Wherein, guidance panel 1 is liquid crystal display operation panel 1, comprise LCDs and functional key, functional key can carry out temperature setting, function setting, start and close operation and fault alarm etc., LCDs can show Current Temperatures, equipment working state, guidance panel 1 can select installation site flexibly according to use occasion situation, does not affect temperature-controlled precision.
Vari-able flow control device 3 is arranged in connecting box of fan coil, adopts PIC16F1829 single-chip microcomputer to do control core, carries out storing and logical operation, and provide the working power of DC12V by Switching Power Supply assembly.According to the temperature data that design temperature data and the temperature sensor 2 of guidance panel 1 detect, by being multiplied by the specified cooling/thermal power of equipment after PID arithmetic again, according to the value of different return air temperature, calculate Real-time Load amount to export, and control the aperture of electric two-way valve, realize changeable flow adjustment, and achieve the water yield linear regulation of all devices in system, the dynamic hydraulic equilibrium of whole water circulation system is made to improve, constant total for the return pipe temperature difference in economical operation standard value, the control logic making pump variable frequency regulate is simply effective, improve the comprehensive COP value of whole central air conditioner system, the Inlet and outlet water temperature difference of constant refrigeration host computer simultaneously, refrigeration host computer is allowed to run under standard condition, energy conservation and consumption reduction effects is significantly direct.
Electric two-way valve comprises the first electric two-way valve 4 of regulating cold-water return amount and hot water backwater is measured to the second electric two-way valve 5 regulated, first electric two-way valve 4 is arranged on cold-water return pipe, second electric two-way valve 5 is arranged on hot water return pipe, and the first electric two-way valve 4 is all connected with vari-able flow control device 3 with the second electric two-way valve 5.First electric two-way valve 4 and the second electric two-way valve 5 all adopt the electric two-way valve of floating type, can according to the control signal of vari-able flow control device 3, regulation valve body aperture, and then regulating pondage, the variable water volume realizing supplying as required regulates, the quantity of circulating water realizing equipment carries out regulable control by actual load, make room temperature remain on setting value ± 1 DEG C in, achieve the control technology of synchronous converter amount, solve the problem of " the little temperature difference of large discharge ", maintain supply backwater temperature difference in desired value, ensure and supply return main's temperature difference to reach " GB/T17981-2007 " " air handling system economical operation " national standard.Be provided with the first relay group between vari-able flow control device 3 and the first electric two-way valve 4, between vari-able flow control device 3 and the second electric two-way valve 5, be provided with the second relay group.
Vari-able flow control device 3 is also connected with blower fan, three the 3rd relay groups are also provided with between blower fan and vari-able flow control device 3, three the 3rd relay groups control blower fan respectively with high, medium and low rotation speed operation, also can adopt the rotating speed of analog output control DC direct current generator and then control the rotating speed of blower fan.
Temperature sensor 2 is the exogenous temperature sensor 2 of length about 2.5 meters, and be independent entry device, can install separately, too recent photo sound thermometric is inaccurate with other heater element distance to solve temperature sensor 2, the installation site solving temperature sensor 2 is dumb, accurately can not detect a difficult problem for room temperature, temperature sensor 2 is arranged in the air-intaking box of fan coil, also the detection position that other is desirable can be arranged on, in order to detect return air temperature, and send to vari-able flow control device 3, the air-flow of test point and room airflow are forced circulation, so the temperature detected is closer to room temperature.
The utility model central air conditioning fan coil unit variable-flow temperature control equipment according to actual load adjusted in concert air quantity, the water yield, can realize indoor temperature, supply backwater temperature difference maintenance is constant, energy-saving and cost-reducing.
Last it is noted that these are only preferred embodiment of the present utility model; be not limited to the utility model; although be described in detail the utility model with reference to embodiment; for a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; but it is all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (7)
1. a central air conditioning fan coil unit variable-flow temperature control equipment, is characterized in that comprising:
For the guidance panel that temperature sets and shows;
For detecting the temperature sensor of return air temperature;
For controlling the vari-able flow control device of electric two-way valve aperture according to the return air temperature detected and design temperature;
According to the electric two-way valve of the control signal regulating pondage of described vari-able flow control device;
Described guidance panel, temperature sensor, vari-able flow control device and described electric two-way valve are all separately independent to be arranged, and described guidance panel, temperature sensor are all connected with described vari-able flow control device, and described vari-able flow control device is connected with described electric two-way valve.
2. central air conditioning fan coil unit variable-flow temperature control equipment according to claim 1, is characterized in that: described temperature sensor is arranged in the air-intaking box of fan coil.
3. central air conditioning fan coil unit variable-flow temperature control equipment according to claim 1, it is characterized in that: described electric two-way valve comprises the first electric two-way valve regulating cold-water return amount and the second electric two-way valve regulating hot water backwater's amount, and described first electric two-way valve is all connected with described vari-able flow control device with described second electric two-way valve.
4. central air conditioning fan coil unit variable-flow temperature control equipment according to claim 3, it is characterized in that: between described vari-able flow control device and described first electric two-way valve, be provided with the first relay group, between described vari-able flow control device and described second electric two-way valve, be provided with the second relay group.
5. the central air conditioning fan coil unit variable-flow temperature control equipment according to claim 3 or 4, is characterized in that: described first electric two-way valve and described second electric two-way valve are floating type electric two-way valve.
6. central air conditioning fan coil unit variable-flow temperature control equipment according to claim 1, is characterized in that: described vari-able flow control device is also connected with blower fan.
7. central air conditioning fan coil unit variable-flow temperature control equipment according to claim 6, is characterized in that: be also connected with the 3rd relay group controlling rotation speed of fan between described blower fan and described vari-able flow control device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520626972.1U CN204880547U (en) | 2015-08-18 | 2015-08-18 | Central air conditioning fan coil unsteady flow volume temperature control device |
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| CN201520626972.1U CN204880547U (en) | 2015-08-18 | 2015-08-18 | Central air conditioning fan coil unsteady flow volume temperature control device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737339A (en) * | 2016-02-28 | 2016-07-06 | 广州市设计院 | Fan coil temperature control device capable of controlling opening limit range of water valve according to return air temperature |
| CN107355962A (en) * | 2017-06-28 | 2017-11-17 | 安徽华斯源新能源科技有限公司 | Less radio-frequency one controls more temperature control systems |
| CN109425072A (en) * | 2017-08-18 | 2019-03-05 | 茂盟（上海）工程技术股份有限公司 | A kind of energy-saving control system and control method |
| CN109603375A (en) * | 2019-01-29 | 2019-04-12 | 广州林电科技有限公司 | A kind of energy-saving air purification device convenient for safeguarding for coal chemical industry |
| CN112665179A (en) * | 2019-10-15 | 2021-04-16 | 芜湖美的厨卫电器制造有限公司 | Gas wall-mounted boiler system, water flow control method and device and storage medium |
| CN112665178A (en) * | 2019-10-15 | 2021-04-16 | 芜湖美的厨卫电器制造有限公司 | Gas wall-mounted boiler system, gas wall-mounted boiler control method and device and storage medium |
-
2015
- 2015-08-18 CN CN201520626972.1U patent/CN204880547U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737339A (en) * | 2016-02-28 | 2016-07-06 | 广州市设计院 | Fan coil temperature control device capable of controlling opening limit range of water valve according to return air temperature |
| CN107355962A (en) * | 2017-06-28 | 2017-11-17 | 安徽华斯源新能源科技有限公司 | Less radio-frequency one controls more temperature control systems |
| CN107355962B (en) * | 2017-06-28 | 2020-10-20 | 安徽华斯源新能源科技有限公司 | Wireless radio frequency one-control multi-temperature control system |
| CN109425072A (en) * | 2017-08-18 | 2019-03-05 | 茂盟（上海）工程技术股份有限公司 | A kind of energy-saving control system and control method |
| CN109603375A (en) * | 2019-01-29 | 2019-04-12 | 广州林电科技有限公司 | A kind of energy-saving air purification device convenient for safeguarding for coal chemical industry |
| CN109603375B (en) * | 2019-01-29 | 2021-06-01 | 山东晋煤明升达化工有限公司 | A energy-saving air purification device for coal industry's maintenance of being convenient for |
| CN112665179A (en) * | 2019-10-15 | 2021-04-16 | 芜湖美的厨卫电器制造有限公司 | Gas wall-mounted boiler system, water flow control method and device and storage medium |
| CN112665178A (en) * | 2019-10-15 | 2021-04-16 | 芜湖美的厨卫电器制造有限公司 | Gas wall-mounted boiler system, gas wall-mounted boiler control method and device and storage medium |
| CN112665178B (en) * | 2019-10-15 | 2022-09-27 | 芜湖美的厨卫电器制造有限公司 | Gas wall-mounted boiler system, gas wall-mounted boiler control method and device and storage medium |
| CN112665179B (en) * | 2019-10-15 | 2022-10-04 | 芜湖美的厨卫电器制造有限公司 | Gas wall-mounted boiler system, water flow control method and device and storage medium |
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Effective date of registration: 20160929 Address after: 510045 Guangdong city of Guangzhou province Haizhuqu District Nan Tian Lu Song Shu Qian No. 38 Room 608 Patentee after: Guangzhou Hao Ming Mechanical & Electrical Technology Co., Ltd. Address before: 510240, room 115, 902 South Village Road, Guangzhou, Guangdong, Haizhuqu District Patentee before: Liu Dinghua |