CN115406061B - Method and system for switching condensation removing and air supplying modes of radiation air conditioner - Google Patents
Method and system for switching condensation removing and air supplying modes of radiation air conditioner Download PDFInfo
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- CN115406061B CN115406061B CN202211342625.7A CN202211342625A CN115406061B CN 115406061 B CN115406061 B CN 115406061B CN 202211342625 A CN202211342625 A CN 202211342625A CN 115406061 B CN115406061 B CN 115406061B
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- 230000005855 radiation Effects 0.000 title claims abstract description 167
- 238000009833 condensation Methods 0.000 title claims abstract description 78
- 230000005494 condensation Effects 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004378 air conditioning Methods 0.000 claims abstract description 97
- 239000011148 porous material Substances 0.000 claims abstract description 81
- 238000007791 dehumidification Methods 0.000 claims description 25
- 239000000523 sample Substances 0.000 claims description 13
- 238000000746 purification Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000010408 sweeping Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims 1
- 238000009423 ventilation Methods 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000003749 cleanliness Effects 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
- F24F11/43—Defrosting; Preventing freezing of indoor units
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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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioners, and discloses a method and a system for switching a condensation-removing air supply mode of a radiation air conditioner, wherein the method comprises the following steps: a plurality of radiation air-conditioning plates are arranged indoors, one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates form a regulation and control area, an air supply pore plate is arranged at the adjacent position of one or a plurality of radiation air-conditioning plates, a lifting device is arranged on the air supply pore plate, and a central controller controls the lifting device to lift or lower each radiation air-conditioning plate; when the radiation air-conditioning plate has condensation risk; the central controller controls and adjusts the air supply pore plate of the corresponding area to adjust downwards, and the conventional air supply mode is switched into a high air volume mode to remove condensation on the radiation air conditioner plate; after the condensation risk of one radiation air conditioner plate or a plurality of radiation air conditioner plates is removed, the high air volume mode of the air supply hole plate is closed, and the normal air supply mode is switched to or the radiation air conditioner is closed; the problem of when the condensation risk appears in current radiation air conditioner board, the condensation risk is difficult to relieve, radiation air conditioner power consumption is high is solved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a system for switching a condensation-removing air supply mode of a radiation air conditioner.
Background
The air conditioner is an indispensable facility in families or public places all the time, the wide use of the radiation air conditioner also inevitably becomes important equipment in daily life, the energy consumption of the radiation air conditioner usually occupies higher proportion, simultaneously, along with the continuous improvement of the living standard of people, higher requirements are also put forward to the requirements of indoor and outdoor environment, and along with the development of the society, the requirements of the radiation air conditioner not only need to meet the requirements of comfort, but also need to meet the requirements of energy conservation.
However, in the conventional radiation air conditioner, the surface temperature of the cold radiation surface is easily lower than the dew point temperature in the air, and the condensation phenomenon is easily generated, thereby increasing the energy consumption rate of the radiation air conditioner.
The market needs a method and a system capable of effectively removing the surface condensation problem of the radiation air conditioner, realizing a more suitable indoor environment, meeting the requirement of people on pursuing comfortable life, and simultaneously achieving the purposes of energy conservation and consumption reduction.
Disclosure of Invention
Aiming at the defects in the prior art, the invention mainly provides a method and a system for switching a condensation removing and air supplying mode of a radiation air conditioner, and solves the problems that the condensation risk is difficult to remove and the energy consumption of the radiation air conditioner is high when the condensation risk occurs on the existing radiation air conditioner plate.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for switching a condensation removing and air supplying mode of a radiation air conditioner comprises the following steps: a plurality of radiation air-conditioning plates are arranged indoors, one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates form a regulation and control area, an air supply pore plate is arranged at the adjacent position of one or a plurality of radiation air-conditioning plates, a lifting device is arranged on the air supply pore plate, and a central controller controls the lifting device to lift or lower each radiation air-conditioning plate;
the sensor feeds back the plate surface temperature of the radiation air-conditioning plate and the dew point temperature in the regulation and control area where the radiation air-conditioning plate is located to the central controller, and if the plate surface temperature of the radiation air-conditioning plate is less than or equal to the sum of the dew point temperature in the temperature control area where the radiation air-conditioning plate is located and the temperature allowance, the radiation air-conditioning plate has a condensation risk;
the central controller controls and adjusts the air supply pore plates of the corresponding areas to adjust downwards, the conventional air supply mode is switched into a high air volume mode, annular air supply sweeps the radiation air conditioner plates with condensation risks around, and condensation on the radiation air conditioner plates is removed;
and after the condensation risk of one radiation air-conditioning plate or a plurality of radiation air-conditioning plates is relieved, the annular air supply of the air supply pore plate is closed, and the conventional air supply mode or the closing mode is switched.
Further, the central controller controls and adjusts the descending of the air supply pore plate of the corresponding area, and the method comprises the following steps:
the descending height of the air supply pore plate is 1-8 mm;
further, when the normal air supply mode is switched, the descending height of the air supply pore plate is 1-6 mm, and the air supply quantity in the normal air supply mode is the rated air quantity;
when the high air volume mode is switched, the descending height of the air supply pore plate is 4-8 mm, and the air supply volume in the high air volume mode is 120-150% of the rated air volume;
when the mode is switched to the closing mode, the annular air supply mode is closed, the annular air supply mode is switched to air supply of an air supply pore plate, and air volume and/or air speed air supply corresponding to the air exchange times is carried out according to the indoor purification grade requirement;
furthermore, the temperature of the panel surface of the radiation air conditioner is monitored in real time through a temperature probe in the sensor, and the temperature probe feeds the panel surface temperature of the radiation air conditioner panel back to the central controller.
Further, the radiation air conditioner comprises a dehumidification system, and when the radiation air conditioner plate has a condensation risk, the dehumidification system is started to perform dehumidification.
A radiation air conditioner removes switching system of dew air supply mode, includes: the device comprises a plurality of radiation air conditioning plates, an air supply pore plate, a central controller, a condensation risk judgment module and an air supply mode switching module;
arranging a plurality of radiation air-conditioning plates indoors, wherein one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates form a regulation and control area, arranging an air supply pore plate at the adjacent position of one or a plurality of radiation air-conditioning plates, arranging a lifting device on the air supply pore plate, and controlling the lifting device to lift or lower each radiation air-conditioning plate by a central controller;
the condensation risk judgment module is used for feeding back the plate surface temperature of the radiation air-conditioning plate and the dew point temperature in the regulation and control area where the radiation air-conditioning plate is located to the central controller through a sensor, and if the plate surface temperature of the radiation air-conditioning plate is less than or equal to the sum of the dew point temperature in the temperature control area where the radiation air-conditioning plate is located and the temperature allowance, the radiation air-conditioning plate has condensation risk;
the air supply mode switching module is used for controlling and adjusting the air supply pore plate of the corresponding area to be adjusted downwards by the central controller, switching the conventional air supply mode into a high air volume mode, and sweeping the radiant air conditioner plate with condensation risk around by annular air supply to remove condensation on the radiant air conditioner plate;
and the air supply mode switching module is used for closing the annular air supply of the air supply pore plate after the condensation risk of one or more radiation air conditioner plates is removed, and switching the air supply mode into a conventional air supply mode or a closing mode.
And the air supply pore plate adjusting unit is used for adjusting the descending height of the air supply pore plate, and the descending height of the air supply pore plate is 1-8 mm.
Further, the air supply mode switching module includes:
the conventional air supply unit is used for switching to the conventional air supply mode, the descending height of the air supply pore plate is 1-6 mm, and the air supply quantity in the conventional air supply mode is the rated air quantity;
the high air volume air supply unit is used for switching to the high air volume mode, the descending height of the air supply pore plate is 4-8 mm, and the air supply volume in the high air volume mode is 120-150% of the rated air volume;
the air conditioner unit is turned off, and when the air conditioner unit is switched to the off mode, the annular air supply mode is turned off, the annular air supply mode is switched to air supply of an air supply pore plate, and air volume and/or air speed air supply corresponding to the air exchange times is carried out according to the indoor purification grade requirement;
further, the condensation risk judgment module comprises:
and the temperature monitoring unit is used for monitoring the panel temperature of the radiation air conditioner in real time by a temperature probe in the sensor, and the panel temperature of the radiation air conditioner panel is fed back to the central controller by the temperature probe.
Further, the dehumidification module: the radiation air conditioner comprises a dehumidification system, and the dehumidification system is started to dehumidify when the radiation air conditioner plate is judged to have condensation risk.
Compared with the prior art, the invention has the following beneficial effects:
1. the method and the system can switch a regular air supply mode into a high air volume mode, a lifting device is arranged on an air supply pore plate, a central controller controls the lifting device to lift or lower each radiant air conditioner plate, when the radiant air conditioner plates have condensation risks, the downward-regulating air supply pore plate is switched into the high air volume mode from the regular air supply mode, circular air supply is arranged in circumferential seams around the circumferential seams, air supply sweeps the radiant air conditioner plates with the condensation risks around to form a dry airflow layer, nearby high-humidity air is isolated, and condensation on the radiant air conditioner plates is removed, so that the method is convenient and rapid, and energy and electricity are saved;
2. the scheme can also be used at the beginning of the starting of the radiation air conditioner, the annular horizontal air outlet strip seams of all the air supply pore plates are opened, the convection heat transfer coefficient of the surface of the radiation plate is increased, the heat transfer quantity is improved, and the effect of quick refrigeration is realized;
3. the temperature probe is arranged on the radiation air-conditioning plate and monitors the surface temperature of the radiation air-conditioning plate in real time, so that the radiation air-conditioning plate can be effectively monitored;
4. the dehumidification system controls the load of the radiation air conditioner, so that the energy consumption of the radiation air conditioner can be effectively reduced, the aim of saving energy is fulfilled, and the reliability and the comfort in use of the system are improved.
Drawings
FIG. 1 is a schematic flow chart of a method for switching dew-removing air supply modes of a radiation air conditioner;
fig. 2 is a schematic flow chart of a system for switching the condensation-removing air supply mode of the radiation air conditioner.
Detailed Description
The following describes the switching method and system for the condensation-removing air supply mode of the radiant air conditioner in further detail with reference to the embodiments.
As shown in fig. 1, an embodiment of the present invention provides a method for switching a condensation-removing air supply mode of a radiation air conditioner, including:
s001, arranging a plurality of radiation air-conditioning plates indoors, wherein one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates form a regulation and control area, arranging an air supply pore plate at the adjacent position of one or a plurality of radiation air-conditioning plates, arranging a lifting device on the air supply pore plate, and controlling the lifting device to lift or lower each radiation air-conditioning plate by a central controller;
s002, feeding back the plate surface temperature of the radiant air conditioning plate and the dew point temperature in the regulation and control area where the radiant air conditioning plate is located to the central controller by a sensor, wherein if the plate surface temperature of the radiant air conditioning plate is less than or equal to the sum of the dew point temperature in the temperature control area where the radiant air conditioning plate is located and the temperature allowance, the radiant air conditioning plate has a condensation risk;
specifically, the temperature of the panel surface of the radiation air conditioner is monitored in real time through a temperature probe in a sensor, and the temperature probe feeds the panel surface temperature of the radiation air conditioner back to the central controller;
in particular, for the panel surface temperature of the radiant air conditioner panel
Indicating the dew point temperature in said temperature-controlled zone in which the radiant air conditioner panel is located
For indicating the temperature margin
And (3) expressing, then, a condensation risk judgment formula:
wherein
The number of the radiation plate,
Indicates the number of the temperature control area,
Representing the temperature margin, wherein the temperature margin is related to the temperature uniformity of the surface of the radiation plate and the size of a water system, when the temperature uniformity is poor, the deviation between the measured value and the actual value of the lowest temperature of the radiation plate is larger, and the temperature margin is correspondingly required to be larger; when the water system is too large, multiple zones or rooms may be involved, with different room condensation risks, but each zone or room shares a common setThe control system, therefore, the temperature margin will be larger when one radiant air-conditioning panel or a plurality of adjacent radiant air-conditioning panels
And
satisfy the requirement of
And judging that one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates have condensation risks.
S003, the central controller controls and adjusts the air supply pore plates of the corresponding areas to adjust downwards, the conventional air supply mode is switched into a high air volume mode, and annular air supply sweeps the radiation air conditioner plates with condensation risks around to remove condensation on the radiation air conditioner plates;
specifically, the descending height of the air supply pore plate is 1-8 mm, the air supply mode is switched from an air supply mode of the air supply pore plate to an air outlet with a circumferential annular strip seam, an air flow pressure difference exists in the front and the back of the air supply pore plate, a part of the air supply quantity of the pore plate is sent out from the circumferential strip seam due to the occurrence of the strip seam, the air supply quantity of the strip seam is determined by the width of the strip seam and the total air supply quantity of the pore plate, the air supply sweeps the circumferential radiation air conditioner plate, a dry air flow layer is formed, near high-humidity air is isolated, and condensation is avoided.
And S004, after the condensation risk of one or more radiation air-conditioning plates is relieved, closing the annular air supply of the air supply pore plate, and switching to a conventional air supply mode or a closing mode.
In another embodiment, when the conventional air supply mode is switched, the descending height of the air supply pore plate is 1-6 mm, the air supply quantity in the conventional air supply mode is the rated air quantity, the aim of maximum comfort is met in the conventional air supply mode, the influence of air noise is lowest, meanwhile, the electricity can be reasonably used, and the purposes of energy conservation and consumption reduction are achieved;
when the high air volume mode is switched, the descending height of the air supply pore plate is 4-8 mm, and the air supply volume in the high air volume mode is 120-150% of the rated air volume;
specifically, when the air supply mode of the radiation air conditioner is switched to a high air volume mode, the radiation air conditioner is used in combination with a radiation air conditioning system, namely when the water flow of a cold water system is increased, an annular air supply outlet is opened, the descending height of an air supply pore plate is 4-8 mm, the air volume is 120-150% of the rated air volume, the requirement of rapid cooling can be met, and the ventilation efficiency can be improved in combination with an exhaust system under the non-refrigeration working condition;
when the mode is switched to the closing mode, the annular air supply mode is closed, the annular air supply mode is switched to air supply of an air supply pore plate, and air volume and/or air speed air supply corresponding to the air exchange times is carried out according to the indoor purification grade requirement;
specifically, for example, if the air cleanliness purification grade is 1000 kilo, the ventilation frequency is 50-60 times/hour;
for example, if the air cleanliness purification grade is 10000 ten thousand grades, the ventilation times are 15-25 times/hour;
for example, if the air cleanliness level is 100000 hundred thousand levels, the ventilation frequency is 10-15 times/hour;
if the room is not required to be purified, the ventilation times are all below 10 times/h.
In another embodiment, the radiant air conditioner comprises a dehumidification system, and when the radiant air conditioner plate has a condensation risk, the dehumidification system is started to perform dehumidification;
specifically, when the condensation risk exists in the radiation air-conditioning plate, the central controller controls and adjusts the air supply pore plate of the corresponding area to adjust downwards, the conventional air supply mode is switched into a high air volume mode, annular air supply sweeps the radiation air-conditioning plate with the condensation risk around, meanwhile, the dehumidification system performs dehumidification, and the condensation risk of the radiation air-conditioning plate is removed; when indoor air is in a high-humidity condition and a dehumidification system is started, the radiation air conditioner plates with condensation risks are swept around through annular air supply, the plate surface temperature of the radiation air conditioner plates is controlled above an air condensation point, the operation reliability is effectively improved, and the problem of system reaction lag caused by the fact that the condensation risks are responded through water temperature adjustment is solved.
In another embodiment, except for dealing with the sudden condensation risk problem during operation, the scheme can also be used for opening annular horizontal air outlet strip seams of all air supply pore plates at the beginning of the starting of the radiation air conditioner, increasing the convection heat transfer coefficient of the surface of the radiation plate, improving the heat exchange quantity and realizing the effect of quick refrigeration.
In another embodiment, the air supply of the air supply pore plate needs to reach a certain air supply distance to ensure clean air supply of a target air supply area, and for an application scene with high air quality requirement, the problem of reduction of vertical air supply of the pore plate caused by strip seam air supply can be solved by means of increasing the whole air supply quantity.
As shown in fig. 2, a system for switching a condensation-removing air supply mode of a radiation air conditioner includes: the device comprises a plurality of radiation air-conditioning plates, an air supply pore plate, a central controller 01, a condensation risk judgment module 02 and an air supply mode switching module 03;
arranging a plurality of radiation air-conditioning plates indoors, wherein one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates form a regulation and control area, arranging an air supply pore plate at the adjacent position of one or a plurality of radiation air-conditioning plates, arranging a lifting device on the air supply pore plate, and controlling the lifting device to lift or lower each radiation air-conditioning plate by a central controller 01;
a condensation risk determination module 02, configured to feed back, to the central controller 01, a board surface temperature of the radiation air conditioning board and a dew point temperature in the control area where the radiation air conditioning board is located by a sensor, where if the board surface temperature of the radiation air conditioning board is less than or equal to a sum of the dew point temperature in the temperature control area where the radiation air conditioning board is located and a temperature margin, the radiation air conditioning board has a condensation risk;
the air supply mode switching module 03 is used for controlling and adjusting the air supply pore plate of the corresponding area to be adjusted downwards by the central controller 01, switching the conventional air supply mode into a high air volume mode, and sweeping the radiation air conditioner plate with condensation risk around by annular air supply to remove condensation on the radiation air conditioner plate;
and the air supply mode switching module 03 is used for closing annular air supply of the air supply pore plate after the condensation risk of one or more radiation air-conditioning plates is relieved, and switching the mode into a conventional air supply mode or a closing mode.
In another embodiment, the air supply pore plate adjusting unit 05 is used for adjusting the descending height of the air supply pore plate, and the descending height of the air supply pore plate is 1-8 mm;
specifically, the descending height of the air supply pore plate is 1-8 mm, an air outlet with a circumferential annular strip seam is formed, an airflow pressure difference exists in the front and the back of the air supply pore plate, a part of the air supply quantity of the pore plate is sent out from the circumferential strip seam due to the occurrence of the strip seam, the air output quantity of the strip seam is jointly determined by the strip seam width and the total air supply quantity of the pore plate, the air supply sweeps the circumferential radiation air conditioning plate, a dry air flow layer is formed, nearby high-humidity air is isolated, and condensation is avoided.
In another embodiment, the normal air supply unit 06 is configured to, when switching to the normal air supply mode, lower the height of the air supply orifice plate by 1 to 6 millimeters, where the air supply amount in the normal air supply mode is a rated air amount;
the aim of meeting the maximum comfort in the conventional air supply mode is fulfilled, the influence of wind noise is lowest, reasonable power utilization can be realized, and the aims of saving energy and reducing consumption are fulfilled.
The high air volume air supply unit 07 is used for switching to the high air volume mode, the descending height of the air supply pore plate is 4-8 mm, and the air supply volume in the high air volume mode is 120-150% of the rated air volume;
when the air supply mode of the radiation air conditioner is switched to a high air volume mode, the radiation air conditioner is used in combination with a radiation air conditioning system, namely when the water flow of a cold water system is increased, the annular air supply outlet is opened, the descending height of the air supply pore plate is 4-8 mm, the air volume is 120-150% of the rated air volume, the requirement of rapid cooling can be met, and the ventilation efficiency can be improved in combination with an exhaust system under the non-refrigeration working condition.
The air conditioner unit 08 is turned off and used for turning off the annular air supply mode when the air conditioner unit is switched to the off mode, switching the annular air supply mode to air supply of an air supply pore plate, and supplying air with air volume and/or air speed corresponding to the air exchange times according to the indoor purification grade requirement;
wherein, for example, if the air cleanliness purification grade is 1000 kilo grade, the ventilation frequency is 50-60 times/hour;
for example, if the air cleanliness class is 10000 ten thousand, the ventilation frequency is 15-25 times/hour;
for example, if the air cleanliness level is 100000 hundred thousand levels, the ventilation frequency is 10-15 times/hour;
if the room is not required to be purified, the ventilation times are all below 10 times/h.
In another embodiment, the temperature monitoring unit 09 monitors the panel surface temperature of the radiant air conditioner in real time through a temperature probe in the sensor, and the temperature probe feeds the panel surface temperature of the radiant air conditioner back to the central controller 01;
wherein the surface temperature of the radiation air-conditioning plate is used
Indicating the dew point temperature in the temperature control area in which the radiant air conditioner plate is located
Indicating the temperature margin
And (3) expressing, then, a condensation risk judgment formula:
wherein
The number of the radiation plate,
Indicates the number of the temperature control area,
Representing the temperature margin, wherein the temperature margin is related to the temperature uniformity of the surface of the radiation plate and the size of a water system, when the temperature uniformity is poor, the deviation between the measured value and the actual value of the lowest temperature of the radiation plate is larger, and the temperature margin is correspondingly required to be larger; when the water system is too large, a plurality of areas or rooms are involved, the condensation risks of different rooms can be different, but each area or room shares one set of control system, so the temperature margin is ensuredWill be larger, and when one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates
And
satisfy the requirements of
And judging that one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates have condensation risks.
In another embodiment, the dehumidification module 04: the radiation air conditioner comprises a dehumidification system, and when the radiation air conditioner plate has a condensation risk, the dehumidification system is started to dehumidify;
when the condensation risk exists in the radiation air-conditioning plate, the central controller 01 controls and adjusts the air supply pore plate of the corresponding area to adjust downwards, the conventional air supply mode is switched into a high air volume mode, the annular air supply sweeps the radiation air-conditioning plate with the condensation risk around, meanwhile, the dehumidification system performs dehumidification, after the humidity is reduced, the strip seams around the pore plate are closed, the radiation air-conditioning plate operates under the conventional working condition, and the condensation risk of the radiation air-conditioning plate is relieved; when the indoor air is in a high-humidity condition and the dehumidification system is started, the radiation air-conditioning plate with condensation risks is swept around through annular air supply, the plate surface temperature of the radiation air-conditioning plate is controlled above an air condensation point, the operation reliability is effectively improved, and the problem of system reaction lag caused by the fact that the condensation risks are responded through water temperature adjustment is solved.
Another embodiment, except dealing with the unexpected condensation risk problem in operation, this scheme also can be used in the beginning of radiation air conditioner start-up, opens the annular horizontal air-out strip seam of all air supply orifice plates, increases radiation plate surface convection heat transfer coefficient, improves the heat transfer volume, realizes quick cryogenic effect.
In another embodiment, the air supply of the air supply pore plate needs to reach a certain air supply distance to ensure clean air supply of a target air supply area, and for an application scene with high air quality requirement, the problem of reduction of vertical air supply of the pore plate caused by strip seam air supply can be solved by means of increasing the whole air supply quantity.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A method for switching a condensation removing and air supplying mode of a radiation air conditioner is characterized by comprising the following steps: a plurality of radiation air-conditioning plates are arranged indoors, one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates form a regulation and control area, an air supply pore plate is arranged at the adjacent position of one or a plurality of radiation air-conditioning plates, a lifting device is arranged on the air supply pore plate, and a central controller controls the lifting device to lift or lower each radiation air-conditioning plate;
the sensor feeds back the plate surface temperature of the radiation air conditioning plate and the dew point temperature in the regulation and control area where the radiation air conditioning plate is located to the central controller, and if the plate surface temperature of the radiation air conditioning plate is less than or equal to the sum of the dew point temperature in the regulation and control area where the radiation air conditioning plate is located and the temperature allowance, the radiation air conditioning plate has a condensation risk; when the air supply mode is switched to the conventional air supply mode, the descending height of the air supply pore plate is 1-6 mm, and the air supply quantity in the conventional air supply mode is the rated air quantity; when the air supply mode is switched to the high air volume mode, the descending height of the air supply pore plate is 4-8 mm, and the air supply volume under the conventional air supply mode is 120-150% of the rated air volume; when the mode is switched to the closing mode, the annular air supply mode is closed, the annular air supply mode is switched to air supply of an air supply pore plate, and air volume and/or air speed air supply corresponding to the air exchange times is carried out according to the indoor purification grade requirement;
the central controller controls and adjusts the air supply pore plates of the corresponding areas to adjust downwards, the conventional air supply mode is switched into a high air volume mode, annular air supply sweeps the radiation air conditioner plates with condensation risks around, and condensation on the radiation air conditioner plates is removed;
and after the condensation risk of one radiation air conditioner plate or a plurality of radiation air conditioner plates is relieved, the annular air supply of the air supply pore plate is closed, and the conventional air supply mode or the closing mode is switched.
2. The method as claimed in claim 1, wherein the controlling and adjusting of the lowering of the blowing orifice plate of the corresponding area by the central controller comprises:
the descending height of the air supply pore plate is 1-8 mm.
3. The method for switching the dewing and air supplying modes of the radiant air conditioner as claimed in claim 1, wherein the panel surface temperature of the radiant air conditioner is monitored in real time by a temperature probe in a sensor, and the panel surface temperature of the radiant air conditioner is fed back to the central controller by the temperature probe.
4. The method as claimed in claim 1, wherein the radiant air conditioner comprises a dehumidification system, and when the radiant air conditioner panel is in a condensation risk, the dehumidification system is turned on to perform dehumidification.
5. The utility model provides a switching system of radiation air conditioner condensation air supply mode that removes which characterized in that includes: the device comprises a plurality of radiation air conditioning plates, an air supply pore plate, a central controller, a condensation risk judgment module and an air supply mode switching module;
a plurality of radiation air-conditioning plates are arranged indoors, one radiation air-conditioning plate or a plurality of adjacent radiation air-conditioning plates form a regulation and control area, an air supply pore plate is arranged at the adjacent position of one or a plurality of radiation air-conditioning plates, a lifting device is arranged on the air supply pore plate, and a central controller controls the lifting device to lift or lower each radiation air-conditioning plate;
the condensation risk judgment module is used for feeding back the plate surface temperature of the radiation air-conditioning plate and the dew point temperature in the regulation and control area where the radiation air-conditioning plate is located to the central controller through a sensor, and if the plate surface temperature of the radiation air-conditioning plate is less than or equal to the sum of the dew point temperature in the regulation and control area where the radiation air-conditioning plate is located and the temperature allowance, the radiation air-conditioning plate has condensation risk; when the air supply mode is switched to the conventional air supply mode, the descending height of the air supply pore plate is 1-6 mm, and the air supply quantity in the conventional air supply mode is the rated air quantity; when the air supply mode is switched to the high air volume mode, the descending height of the air supply pore plate is 4-8 mm, and the air supply volume under the conventional air supply mode is 120-150% of the rated air volume; when the mode is switched to the closing mode, the annular air supply mode is closed, the annular air supply mode is switched to air supply of an air supply pore plate, and air volume and/or air speed air supply corresponding to the air exchange times is carried out according to the indoor purification grade requirement;
the air supply mode switching module is used for controlling and adjusting the air supply pore plate of the corresponding area to be adjusted downwards by the central controller, switching the conventional air supply mode into a high air volume mode, and sweeping the radiant air conditioner plate with condensation risk around by annular air supply to remove condensation on the radiant air conditioner plate;
and the air supply mode switching module is used for closing the annular air supply of the air supply pore plate after the condensation risk of one or more radiation air conditioner plates is removed, and switching the air supply mode into a conventional air supply mode or a closing mode.
6. The system of claim 5, wherein the air supply mode switching module comprises:
and the air supply pore plate adjusting unit is used for adjusting the descending height of the air supply pore plate, and the descending height of the air supply pore plate is 1-8 mm.
7. The system of claim 5, wherein the condensation risk determining module comprises:
and the temperature monitoring unit monitors the panel temperature of the radiation air conditioner in real time through a temperature probe in the sensor, and the temperature probe feeds the panel temperature of the radiation air conditioner panel back to the central controller.
8. The system of claim 5, further comprising:
a dehumidification module: the radiation air conditioner comprises a dehumidification system, and when the radiation air conditioner plate has a condensation risk, the dehumidification system is started to dehumidify.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211342625.7A CN115406061B (en) | 2022-10-31 | 2022-10-31 | Method and system for switching condensation removing and air supplying modes of radiation air conditioner |
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| CN202211342625.7A CN115406061B (en) | 2022-10-31 | 2022-10-31 | Method and system for switching condensation removing and air supplying modes of radiation air conditioner |
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| NL154592B (en) * | 1971-06-08 | 1977-09-15 | Tour Agenturer Ab | HEATING AND / OR COOLING INSTALLATION WITH PIPES INSTALLED IN A BUILDING ELEMENT. |
| JPH06201154A (en) * | 1992-12-28 | 1994-07-19 | Mitsubishi Electric Corp | Air-conditioner |
| JPH0996434A (en) * | 1995-09-29 | 1997-04-08 | Toshiba Corp | Radiation type air conditioning system |
| AU2010201383B9 (en) * | 2009-04-13 | 2011-06-02 | Kimura Kohki Co., Ltd. | Heating and cooling unit, and heating and cooling apparatus |
| CN106440288A (en) * | 2016-11-04 | 2017-02-22 | 深圳倍真科技有限公司 | Air outlet device and ceiling radiation air conditioner |
| CN206488398U (en) * | 2016-12-22 | 2017-09-12 | 长安大学 | A kind of TABS radiation coolings device and its anti-condensation control system |
| CN106678937A (en) * | 2017-01-06 | 2017-05-17 | 吉林建筑大学 | Novel intelligent electric heating device |
| US11428432B2 (en) * | 2018-11-20 | 2022-08-30 | Distech Controls Inc. | Computing device and method for inferring an airflow of a VAV appliance operating in an area of a building |
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Effective date of registration: 20240117 Address after: 214000 building 30, HUanpu Industrial Park, No. 15, Hanjiang Road, Xinwu District, Wuxi City, Jiangsu Province Patentee after: WUXI FRESHAIR AQ TECHNOLOGY Co.,Ltd. Address before: 2nd and 3rd Floor, Unit 2, Building 2, Foshan Anjie Health Industrial Park, No. 27, Hongling 3rd Road, Shishan Town, Nanhai District, Foshan City, Guangdong Province, 528200 Patentee before: Guangdong Huyan feilan Technology Co.,Ltd. |