CN104359211A - System and control method for preventing and eliminating dew formation of radiation tail end - Google Patents
System and control method for preventing and eliminating dew formation of radiation tail end Download PDFInfo
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- CN104359211A CN104359211A CN201410568726.5A CN201410568726A CN104359211A CN 104359211 A CN104359211 A CN 104359211A CN 201410568726 A CN201410568726 A CN 201410568726A CN 104359211 A CN104359211 A CN 104359211A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F2013/221—Means for preventing condensation or evacuating condensate to avoid the formation of condensate, e.g. dew
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a system and a control method for preventing and eliminating dew formation of a radiation tail end. The system mainly comprises an air conditioner internal unit, a heat exchanger, a fan coil, a plate type heat exchanger, a radiation tail end system, a fresh air dehumidification system, a condensate discharge system and a control device. Due to the adoption of the fresh air dehumidification system, the purpose of preventing the radiation tail end from dew formation is achieved, and the purpose of energy conservation is achieved by recycling the heat of back air; by adopting a control device of the system, in-time alarm and processing can be achieved when the radiation tail end is dewed; as an air supply tube and a condensate pipeline in the horizontal direction are mounted in an inclined manner that the inlets are high and the outlets are low, the purpose of smoothly discharging the condensate is achieved. The system is capable of effectively preventing and eliminating dew formation of the radiation tail end, can be controlled automatically, and is simple, reliable and energy-saving.
Description
Technical field
The present invention relates to a kind of radiation tail end system and control method, specifically relates to a kind of system and control method for preventing and eliminate radiation tail end condensation.
Background technology
Along with the raising of expanding economy and people's living standard, the requirement of people to air conditioning comfortableness and indoor air quality also increases; Meanwhile, the air conditioning energy consumption of building also constantly increases.Radiation tail end air-conditioning system is considered to a kind of economy, the central air conditioner system form that energy-conservation, comfortableness is good and obtain investigation and application gradually.But traditional radiation tail end air-conditioning system easily produces condensation, when radiative surface temperature is lower than room air dew-point temperature, can condensation be produced, affect indoor sanitation condition.
In order to solve the puzzlement condensing and bring, the use radiation tail end air-conditioning system making user security relieved, need to develop a kind of system for preventing and solve radiation tail end Condensation and control device, to prevent radiation tail end Condensation, enable user's awareness information emergency processing is carried out to system timely and effectively when there is condensation simultaneously.
Summary of the invention
Technical problem to be solved by this invention is the problem easily condensed for the radiation tail end system proposed in the middle of background technology, provides a kind of system and control method for preventing and eliminate radiation tail end condensation.
The technical solution adopted for the present invention to solve the technical problems is:
For preventing and eliminate a system for radiation tail end condensation, comprising: outdoor machine of air-conditioner, air-conditioning internal machine, water tank, heat exchanger, fan coil, radiation tail end, air outlet, return air inlet, water circulating pump, breeze fan, plate type heat exchanger, drainage system, control device, triple valve and temp probe; Wherein:
Outdoor machine of air-conditioner medium entrance exports with water tank first and is connected, and water tank first import is connected with outdoor machine of air-conditioner media outlet; Air-conditioning internal machine medium first import is connected with outdoor machine of air-conditioner media outlet, and air-conditioning internal machine medium first outlet is connected with outdoor machine of air-conditioner medium entrance; Fan coil first import exports with water circulating pump and is connected, water circulating pump import exports with water tank second and is connected, fan coil first outlet is connected with plate type heat exchanger first import, plate type heat exchanger first outlet is connected with radiation tail end import, radiation tail end outlet is connected with plate type heat exchanger second import, and water tank second import exports with plate type heat exchanger second and is connected; Plate type heat exchanger triple feed inlet is connected with exit of pump; Fan coil second import exports with heat exchanger first and is connected, indoor set medium second import exports with fan coil second and is connected, indoor set medium second outlet is connected with heat exchanger second import, heat exchanger first import is connected with breeze fan, heat exchanger triple feed inlet is connected with return air inlet, heat exchanger second outlet is connected with air outlet, and heat exchanger the 3rd outlet is connected with exhaust duct; New wind air supply duct on same path contacts with the mode can carrying out exchange heat with certain between return air duct, and the wind pipe of air outlet is connected with drainage system, and condensing water conduit connects sluice pipe;
Control device comprises, information input system, control system and information output system; Wherein, the output of information input system is connected with control system input, and the output of control system is connected with the input of information output system.Described control system comprises controller, alarm and on-off controller, alarm and on-off controller respectively with controller two-way communication, described on-off controller is for opening or cut out the power supply of blower fan and water circulating pump; Described information input system comprises into water first temperature sensor, intake the second temperature sensor, leaving water temperature sensors, wherein: described water inlet first temperature sensor is connected with the temp probe on the water inlet segment after fan coil before plate type heat exchanger, described water inlet second temperature sensor is connected with the temp probe on described radiation tail end system water supply pipeline, and described leaving water temperature sensors is connected with the temp probe on water return pipeline in described radiation tail end system; Described information output system comprises fan frequency converter, pump variable frequency device and three valve controls, wherein: described fan frequency converter is connected with described breeze fan, described pump variable frequency device is connected with described water circulating pump, and described three valve controls are connected with three valve p, three valve q, three valve v.
As further innovation of the present invention, when floor space is sufficient, the new wind air supply duct of horizontal direction and the solidifying waterpipe be connected with new wind air supply duct all adopt import higher than the inclination mounting means exported, when there is condensation in the system that can be implemented in, the object of the condensate water in smooth removal system.
As further innovation of the present invention, when under floor during insufficient space, described airduct is corrugated form, is connected below the pipeline of every section of import higher than outlet with solidifying waterpipe.
As further innovation of the present invention, the new wind air supply duct on same path carries out heat exchange with contacting in the mode of sleeve pipe between return air duct.
As further innovation of the present invention, described control device and system also comprise three-way valve p, three-way valve q and three valve v, the import of described water tank first is connected with outdoor machine of air-conditioner media outlet by three-way valve p with air-conditioning internal machine medium entrance, described water tank first outlet is connected with outdoor machine of air-conditioner medium entrance by three-way valve q with air-conditioning internal machine media outlet, and described water circulating pump outlet is connected with fan coil by three valve v with plate type heat exchanger triple feed inlet.
A kind of control method of the system for preventing and eliminate radiation tail end to condense, when normally running in radiation tail end system, three valve controls regulate three valve p, three valve q, make cold-producing medium respectively by No. 2 interfaces of three valve p, No. 2 interfaces of three valve q flow, outdoor machine of air-conditioner and water tank form loop, air-conditioning internal machine is closed, cold-producing medium carries out heat exchange with the chilled water in water tank in the process through water tank, in refrigerant suction water tank chilled water heat thus the temperature of chilled water is reduced, chilled water enters into fan coil through water circulating pump, first through over-heat-exchanger new wind with return air carry out heat exchange precooling laggard enter fan coil, new wind completes the process of cooling and dehumidifying in fan coil, and new wind again again carries out heat exchange through over-heat-exchanger and return air and delivers to indoor air outlet afterwards, wherein air supply duct entrance, to one whole section of fresh air pipeline of new wind air outlet and return air duct joint, realizes part heat exchange indoor, the chilled water processing new wind passes through plate type heat exchanger again,
When the temperature signal that water inlet first temperature sensor receives is lower than setting value, i.e., during temperature value lower than indoor setting of the chilled water temperature of radiation tail end import, the chilled water backwater that chilled water exports with radiation tail end in plate type heat exchanger carries out heat exchange; When the temperature signal that water inlet first temperature sensor receives is higher than setting value, namely during the chilled water temperature of the chilled water temperature of radiation tail end import higher than indoor setting, three valve controls in information output system regulate three valve v, and the partial freeze water that water circulating pump is exported is entered in plate type heat exchanger by triple valve and carries out heat exchange with the chilled water of radiation tail end import;
After heat exchange, temperature delivers to radiation tail end after reaching the temperature value of indoor setting.Twice heat exchange in heat exchanger of return air and new wind, the heat exchange in plate type heat exchanger of the part heat exchange of indoor air supply duct and return air duct and chilled water, all serves the effect of heat recovery, achieves energy-conservation object.Whole process realizes energy-conservation effect while reaching anti-condensation object to new air cooling dehumidifying.
When there is condensation in radiation tail end system, controller receives the information from information input system and makes feedback, makes alarm send alarm signal, and on-off controller stops the running of water pump and breeze fan, chilled water in radiation tail end system does not recycle, and VMC also no longer supplies new wind; Three valve controls in information output system regulate three valve p, three valve q, make cold-producing medium respectively by No. 3 interfaces of three valve p, No. 3 of three valve q flow, open air-conditioning internal machine, now indoor return air through over-heat-exchanger laggard enter fan coil carry out a cooling and dehumidifying, entering air-conditioning internal machine by fan coil indoor return air out and carry out cooling and dehumidifying again, circulating from being sent to indoor through over-heat-exchanger more afterwards.Indoor return air obtains twice dehumidifying in the process, can efficient solution except the further deterioration of radiation tail end Condensation.The fresh air pipeline of the horizontal direction in the present invention adopts import higher than the mounting means of outlet, when there is condensation in fresh air pipeline, condensate water is first discharged in the solidifying waterpipe in drainage system by the fresh air pipeline tilting to install, then has the tapping pipe removal system in drainage system.
The invention has the beneficial effects as follows:
New wind of the present invention and return air carry out twice heat exchange, in the process of fresh air dehumidification, realize recuperation of heat, realize energy-conservation effect while anti-condensation.
Plate type heat exchanger of the present invention can realize the heat transfer process of radiation tail end import chilled water, chilled water in effective guarantee radiation tail end system meets design requirement, can prevent from not reaching because chilled water temperature is too high refrigeration effect or due to the too low appearance condensation of chilled water temperature.
Control device of the present invention can realize automatic alarm to Condensation situation and process, also makes user know relevant information in time simultaneously, thus effectively processes system.
The new wind air supply duct of horizontal direction of the present invention and condensing water conduit all tilt to install, namely the new wind air supply duct of horizontal direction and solidifying waterpipe adopt air inlet higher than air outlet, condensate water in fresh air pipeline is flowed out smoothly, add the expulsion efficiency of condensate water, prevent fresh air pipeline from gathering for a long time due to condensate water and occurring the adverse consequences such as mouldy.Floor drain in drainage system adopts anti-backflow floor drain, effectively prevents condensate water from flowing to ground pollution floor.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is provided by the invention a kind of for preventing and eliminate the system of radiation tail end condensation and the schematic diagram of control method.
Fig. 2 is the schematic diagram of control device of the present invention.
Fig. 3 is wind pipeline of the present invention and condensation water drainage pipe design schematic diagram.
Fig. 4 is ripple type wind pipeline schematic diagram of the present invention.
In figure: outdoor machine of air-conditioner 1, air-conditioning internal machine 2, water tank 3, heat exchanger 4, fan coil 5, radiation tail end 6, air outlet 7, return air inlet 8, drainage system 9, water circulating pump 10, breeze fan 11, plate type heat exchanger 12, control device 13, three valve p, three valve q, three valve v, temp probe T1, temp probe T2, temp probe T3, information input system B, information output system C, control system A, controller A1, alarm A2, on-off controller A3, to intake the first temperature sensor B1, to intake the second sensor B2, leaving water temperature sensors B3, fan frequency converter C1, pump variable frequency device C2 and three valve control C3.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Figure 1, a kind of for preventing and eliminate the system of radiation tail end condensation and the schematic diagram of control method, comprising: outdoor machine of air-conditioner, air-conditioning internal machine, water tank, heat exchanger, fan coil, radiation tail end, air outlet, return air inlet, floor drain, water circulating pump, breeze fan, plate type heat exchanger, control device, three valves and temp probe; Wherein:
Described outdoor machine of air-conditioner medium entrance exports with described water tank first and is connected, and the import of described water tank first is connected with described outdoor machine of air-conditioner media outlet; The import of described air-conditioning internal machine medium first is connected with described outdoor machine of air-conditioner media outlet, and described air-conditioning internal machine medium first outlet is connected with described outdoor machine of air-conditioner medium entrance; The import of described fan coil first exports with described water circulating pump and is connected, described water circulating pump import exports with described water tank second and is connected, described fan coil first outlet is connected with the import of described plate type heat exchanger first, described plate type heat exchanger first outlet is connected with described radiation tail end import, described radiation tail end outlet is connected with the import of described plate type heat exchanger second, and the import of described water tank second exports with described plate type heat exchanger second and is connected; Described plate type heat exchanger triple feed inlet is connected with described exit of pump; The import of described fan coil second exports with described heat exchanger first and is connected, the import of described indoor set medium second exports with described fan coil second and is connected, described indoor set medium second outlet is connected with the import of described heat exchanger second, the import of described heat exchanger first is connected with described breeze fan, described heat exchanger triple feed inlet is connected with described return air inlet, described heat exchanger second outlet is connected with described air outlet, and described heat exchanger the 3rd outlet is connected with described exhaust duct; The wind pipe of described air outlet is connected with described drainage system; Described condensing water conduit connects sluice pipe, and anti-backflow floor drain is installed on the tapping pipe top in described drainage system.The output of described information input system is connected with described control system input, and the output of described control system is connected with the input of described information output system; Described control system comprises controller, alarm and on-off controller, alarm and on-off controller respectively with controller two-way communication.
As shown in Figure 2, control device schematic diagram, comprising: information input system B, information output system C, and control system A, wherein:
The output of information input system is connected with control system input, and the output of control system is connected with the input of information output system.Described control system comprises controller A1, alarm A2 and on-off controller A3, alarm A2 and on-off controller A3 respectively with controller two-way communication, described on-off controller A3 is for opening or close the power supply of blower fan and water circulating pump; Described information input system comprises into water first temperature sensor B1, intake the second humidity sensor B2, leaving water temperature sensors B3, wherein: described water inlet first temperature sensor B1 is connected with the temp probe T1 on the water inlet segment after fan coil before plate type heat exchanger, described water inlet second temperature sensor B2 is connected with the temp probe T2 on described radiation tail end system water supply pipeline, and described leaving water temperature sensors B3 is connected with the temp probe T3 on water return pipeline in described radiation tail end system; Described information output system comprises fan frequency converter C1, pump variable frequency device C2 and three valve control C3, wherein: described fan frequency converter C1 is connected with described breeze fan 11, described pump variable frequency device C2 is connected with described water circulating pump 10, and described three valve control C3 are connected with three valves p, q, v;
As shown in Figure 3, the solidifying waterpipe that the inlet air pipeline of new wind air outlet is connected with new wind air supply duct is all adopt import higher than the mounting means exported, new wind air supply duct on same path contacts with the mode can carrying out exchange heat with certain between return air duct, solidifying waterpipe leads to tapping pipe, the tapping pipe mouth of pipe is equipped with anti-backflow floor drain;
As shown in Figure 4, ripple airduct schematic diagram, airduct also can adopt corrugated form when insufficient space, is connected higher than below the pipeline exported every section of import with solidifying waterpipe.
Of the present invention for prevent and eliminate the system of radiation tail end condensation and the operation principle of control device and control method as follows:
When normally running in radiation tail end system, three valve controls regulate three valve p, three valve q, cold-producing medium is flowed respectively by No. 2 interfaces of No. 2 interfaces of three valve p, three valve q, outdoor machine of air-conditioner and water tank form loop, air-conditioning internal machine is closed, cold-producing medium carries out heat exchange with the chilled water in water tank in the process through water tank, in refrigerant suction water tank chilled water heat thus the temperature of chilled water is reduced, chilled water enters into fan coil through water circulating pump; First through over-heat-exchanger new wind with return air carry out heat exchange precooling laggard enter fan coil, new wind completes the process of cooling and dehumidifying in fan coil, and new wind again again carries out heat exchange through over-heat-exchanger and return air and delivers to indoor air outlet afterwards; Wherein air supply duct entrance, to one whole section of fresh air pipeline of new wind air outlet and return air duct joint, realizes part heat exchange indoor; The chilled water processing new wind again by plate type heat exchanger (when the temperature signal that water inlet first temperature sensor receives is lower than setting value, namely, during the temperature value of the chilled water temperature of radiation tail end import lower than indoor setting, the chilled water backwater that chilled water exports with radiation tail end in plate type heat exchanger carries out heat exchange; When the temperature signal that water inlet first temperature sensor receives is higher than setting value, namely during the chilled water temperature of the chilled water temperature of radiation tail end import higher than indoor setting, three valve controls in information output system regulate three valve v, and the partial freeze water that water circulating pump is exported is entered in plate type heat exchanger by triple valve and carries out heat exchange with the chilled water of radiation tail end import.), after heat exchange, temperature delivers to radiation tail end after reaching the temperature value of indoor setting; Twice heat exchange in heat exchanger of return air and new wind, the heat exchange in plate type heat exchanger of the part heat exchange of indoor air supply duct and return air duct and chilled water, all serves the effect of heat recovery, achieves energy-conservation object.Whole process realizes energy-conservation effect while reaching anti-condensation object to new air cooling dehumidifying.
When there is condensation in radiation tail end system, controller receives the information from information input system and makes feedback, makes alarm send alarm signal, and on-off controller stops the running of water pump and breeze fan, chilled water in radiation tail end system does not recycle, and VMC also no longer supplies new wind; Three valve controls in information output system regulate three valve p, three valve q, cold-producing medium is flowed respectively by No. 3 interfaces of No. 3 interfaces of three valve p, three valve q, open air-conditioning internal machine, now indoor return air through over-heat-exchanger laggard enter fan coil carry out a cooling and dehumidifying, entering air-conditioning internal machine by fan coil indoor return air out and carry out cooling and dehumidifying again, circulating from being sent to indoor through over-heat-exchanger more afterwards; Indoor return air obtains twice dehumidifying in the process, can efficient solution except the further deterioration of radiation tail end Condensation.
When there is condensation in fresh air pipeline, fresh air pipeline due to the horizontal direction in the present invention adopts import higher than the mounting means of outlet, condensate water is first discharged in the solidifying waterpipe in drainage system by the fresh air pipeline tilting to install, there is the tapping pipe removal system in drainage system again, condensed water can flow out smoothly through fresh air pipeline, prevents fresh air pipeline from gathering for a long time due to condensate water and occurring the adverse consequences such as mouldy.
Fresh air pipeline of the present invention and return air duct, when same path, adopt the mode contacted that can realize exchange heat, can promote the exchange heat of new wind and return air so further, realize energy-conservation object.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to right.
Claims (6)
1., for preventing and eliminate a system for radiation tail end condensation, it is characterized in that, comprising: outdoor machine of air-conditioner, air-conditioning internal machine, water tank, heat exchanger, fan coil, radiation tail end, air outlet, return air inlet, water circulating pump, breeze fan, plate type heat exchanger, drainage system, control device, triple valve and temp probe; Wherein:
Outdoor machine of air-conditioner medium entrance exports with water tank first and is connected, and water tank first import is connected with outdoor machine of air-conditioner media outlet; Air-conditioning internal machine medium first import is connected with outdoor machine of air-conditioner media outlet, and air-conditioning internal machine medium first outlet is connected with outdoor machine of air-conditioner medium entrance; Fan coil first import exports with water circulating pump and is connected, water circulating pump import exports with water tank second and is connected, fan coil first outlet is connected with plate type heat exchanger first import, plate type heat exchanger first outlet is connected with radiation tail end import, radiation tail end outlet is connected with plate type heat exchanger second import, and water tank second import exports with plate type heat exchanger second and is connected; Plate type heat exchanger triple feed inlet is connected with exit of pump; Fan coil second import exports with heat exchanger first and is connected, indoor set medium second import exports with fan coil second and is connected, indoor set medium second outlet is connected with heat exchanger second import, heat exchanger first import is connected with breeze fan, heat exchanger triple feed inlet is connected with return air inlet, heat exchanger second outlet is connected with air outlet, and heat exchanger the 3rd outlet is connected with exhaust duct; New wind air supply duct on same path contacts with the mode can carrying out exchange heat with certain between return air duct, and the wind pipe of air outlet is connected with drainage system, and condensing water conduit connects sluice pipe;
Control device comprises, information input system, control system and information output system; Wherein, the output of information input system is connected with control system input, and the output of control system is connected with the input of information output system;
Described control system comprises controller, alarm and on-off controller, alarm and on-off controller respectively with controller two-way communication, described on-off controller is for opening or cut out the power supply of blower fan and water circulating pump; Described information input system comprises into water first temperature sensor, intake the second temperature sensor, leaving water temperature sensors, wherein: described water inlet first temperature sensor is connected with the temp probe on the water inlet segment after fan coil before plate type heat exchanger, described water inlet second temperature sensor is connected with the temp probe on described radiation tail end system water supply pipeline, and described leaving water temperature sensors is connected with the temp probe on water return pipeline in described radiation tail end system; Described information output system comprises fan frequency converter, pump variable frequency device and three valve controls, wherein: described fan frequency converter is connected with described breeze fan, described pump variable frequency device is connected with described water circulating pump, and described three valve controls are connected with three valve p, three valve q, three valve v.
2. a kind of system for preventing and eliminate radiation tail end condensation as claimed in claim 1, is characterized in that: the new wind air supply duct of horizontal direction and the solidifying waterpipe be connected with new wind air supply duct all adopt import higher than the inclination mounting means exported.
3. as claimed in claim 1 a kind of for prevent and eliminate radiation tail end condensation system, it is characterized in that: described airduct is corrugated form, every section of import higher than outlet pipeline below be connected with solidifying waterpipe.
4. a kind of system for preventing and eliminate radiation tail end condensation as claimed in claim 1, is characterized in that: the new wind air supply duct on same path carries out heat exchange with contacting in the mode of sleeve pipe between return air duct.
5. as claimed in claim 1 a kind of for prevent and eliminate radiation tail end condensation system, it is characterized in that: described control device and system also comprise three-way valve p, three-way valve q and three valve v, the import of described water tank first is connected with outdoor machine of air-conditioner media outlet by three-way valve p with air-conditioning internal machine medium entrance, described water tank first outlet is connected with outdoor machine of air-conditioner medium entrance by three-way valve q with air-conditioning internal machine media outlet, and described water circulating pump outlet is connected with fan coil by three valve v with plate type heat exchanger triple feed inlet.
6. the control method of the system for preventing and eliminate radiation tail end to condense as claimed in claim 5, it is characterized in that: when radiation tail end system is normally run, three valve controls regulate three valve p, three valve q, make cold-producing medium respectively by No. 2 interfaces of three valve p, No. 2 interfaces of three valve q flow, outdoor machine of air-conditioner and water tank form loop, air-conditioning internal machine is closed, cold-producing medium carries out heat exchange with the chilled water in water tank in the process through water tank, in refrigerant suction water tank chilled water heat thus the temperature of chilled water is reduced, chilled water enters into fan coil through water circulating pump, first through over-heat-exchanger new wind with return air carry out heat exchange precooling laggard enter fan coil, new wind completes the process of cooling and dehumidifying in fan coil, and new wind again again carries out heat exchange through over-heat-exchanger and return air and delivers to indoor air outlet afterwards, wherein air supply duct entrance, to one whole section of fresh air pipeline of new wind air outlet and return air duct joint, realizes part heat exchange indoor, the chilled water processing new wind passes through plate type heat exchanger again,
When the temperature signal that first temperature sensor of intaking receives is lower than setting value, i.e., during temperature value lower than indoor setting of the chilled water temperature of radiation tail end import, the chilled water backwater that chilled water exports with radiation tail end in plate type heat exchanger carries out heat exchange; When the temperature signal that first temperature sensor of intaking receives is higher than setting value, namely during the chilled water temperature of the chilled water temperature of radiation tail end import higher than indoor setting, three valve controls in information output system regulate three valve v, and the partial freeze water that water circulating pump is exported is entered in plate type heat exchanger by triple valve and carries out heat exchange with the chilled water of radiation tail end import; After heat exchange, temperature delivers to radiation tail end after reaching the temperature value of indoor setting;
When there is condensation in radiation tail end system, controller receives the information from information input system and makes feedback, makes alarm send alarm signal, and on-off controller stops the running of water pump and breeze fan, chilled water in radiation tail end system does not recycle, and VMC also no longer supplies new wind; Three valve controls in information output system regulate three valve p, three valve q, make cold-producing medium respectively by No. 3 interfaces of three valve p, No. 3 of three valve q flow, open air-conditioning internal machine, now indoor return air through over-heat-exchanger laggard enter fan coil carry out a cooling and dehumidifying, entering air-conditioning internal machine by fan coil indoor return air out and carry out cooling and dehumidifying again, circulating from being sent to indoor through over-heat-exchanger more afterwards.
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| CN201410568726.5A CN104359211A (en) | 2014-10-22 | 2014-10-22 | System and control method for preventing and eliminating dew formation of radiation tail end |
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| CN201410568726.5A CN104359211A (en) | 2014-10-22 | 2014-10-22 | System and control method for preventing and eliminating dew formation of radiation tail end |
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| CN106871419A (en) * | 2017-02-13 | 2017-06-20 | 广东美的暖通设备有限公司 | Fan coil units and its condensation prevention control method and device |
| CN107044706A (en) * | 2017-02-23 | 2017-08-15 | 邓科 | A kind of fresh air purifier |
| CN108700526A (en) * | 2016-02-09 | 2018-10-23 | 株式会社岛津制作所 | ICP analysis device |
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| CN110398012A (en) * | 2019-08-27 | 2019-11-01 | 上海盈达空调设备股份有限公司 | Combined type central air conditioner system and method |
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| CN106871419B (en) * | 2017-02-13 | 2019-08-30 | 广东美的暖通设备有限公司 | Fan coil units and its condensation prevention control method and device |
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| CN116907003A (en) * | 2023-07-31 | 2023-10-20 | 浙江永德信科技有限公司 | Ecological air conditioning system of canopy changes in temperature radiation |
| CN116907003B (en) * | 2023-07-31 | 2024-05-10 | 浙江永德信科技有限公司 | Ecological air conditioning system of canopy changes in temperature radiation |
| CN118089161A (en) * | 2024-04-22 | 2024-05-28 | 无锡菲兰爱尔空气质量技术有限公司 | Tail end dehumidification equipment of full fresh air radiation air conditioning system and control method thereof |
| CN118089161B (en) * | 2024-04-22 | 2024-06-28 | 无锡菲兰爱尔空气质量技术有限公司 | Tail end dehumidification equipment of full fresh air radiation air conditioning system and control method thereof |
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