CN114440432A - Integral fresh air dehumidification all-in-one machine adopting pulsating heat pipes for heat recovery - Google Patents

Integral fresh air dehumidification all-in-one machine adopting pulsating heat pipes for heat recovery Download PDF

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Publication number
CN114440432A
CN114440432A CN202210131293.1A CN202210131293A CN114440432A CN 114440432 A CN114440432 A CN 114440432A CN 202210131293 A CN202210131293 A CN 202210131293A CN 114440432 A CN114440432 A CN 114440432A
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Prior art keywords
air
fresh air
exhaust
central control
control unit
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CN202210131293.1A
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CN114440432B (en
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任键林
石凯哲
孔祥飞
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Hebei University of Technology
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Hebei University of Technology
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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
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
    • 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
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/77—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 by controlling the speed of ventilators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
    • F24F2012/005—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity
    • F24F2110/22—Humidity of the outside air
    • 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]
    • Y02B30/56—Heat recovery units
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Fluid Mechanics (AREA)
  • Drying Of Gases (AREA)
  • Central Air Conditioning (AREA)

Abstract

The invention relates to the technical field of fresh air equipment, in particular to an integral fresh air dehumidification integrated machine for heat recovery by adopting pulsating heat pipes. The fresh air dehumidification integrated machine is internally provided with an additional air channel, an exhaust channel and a fresh air duct in sequence, an additional air fan and an additional air outlet are arranged on the side wall of the additional air channel, an exhaust inlet and an exhaust outlet which are opposite in position are arranged on the side wall of the exhaust channel, the exhaust channel is provided with an exhaust fan, a heat pipe evaporation section and a second spray hydrophobic material filter, the fresh air duct is provided with a fresh air outlet and a fresh air inlet which are positioned on two sides of a pulsating heat pipe sensible heat exchanger and a heat pipe condensation, and a first heat exchanger, a compressor, a second heat exchanger, a fresh air fan, an electromagnetic flow regulating valve and a four-way valve are arranged between the heat pipe condensation section and the fresh air outlet in sequence. According to the invention, the heat recovery mode is carried out by using the pulsating heat pipe, so that the problems of high energy consumption, complex pipeline and low heat recovery rate can be effectively improved, the indoor comfort is improved, and the indoor air quality is improved.

Description

Integral fresh air dehumidification all-in-one machine adopting pulsating heat pipes for heat recovery
Technical Field
The invention relates to the technical field of fresh air equipment, in particular to an integral fresh air dehumidification integrated machine for heat recovery by adopting pulsating heat pipes.
Background
The existing fresh air dehumidification integrated machine has a fresh air function, and can also dehumidify indoor rooms aiming at the problems of high humidity and mildewed walls. The fresh air dehumidification all-in-one machine can dehumidify the room and simultaneously change fresh air into the room, so that the dehumidification and ventilation integrated effect is achieved.
The functions of the fresh air dehumidification integrated machine in the market at present mainly comprise refrigeration and dehumidification, a total heat recovery core body is adopted to recover partial heat from return air for reheating fresh air, the system structure and pipelines are complex, most pipeline sections of the system need heat preservation treatment in order to avoid accumulated condensation water in pipelines inside a unit and ineffective heat exchange of a cold pipe section, and in fact, the heat preservation treatment of all pipelines, valves and the like is difficult to achieve; in addition, the problems of high energy consumption, low heat recovery rate and the like exist, and the refrigeration and heating functions are not available.
Disclosure of Invention
Therefore, the invention provides an integral fresh air dehumidification all-in-one machine for heat recovery by adopting pulsating heat pipes, which is used for overcoming the problem of low heat recovery rate in the prior art.
In order to achieve the above object, the present invention provides an integrated fresh air dehumidifying machine using pulsating heat pipes for heat recovery, comprising:
the fresh air unit is used for conveying outdoor air to the indoor space;
the air exhaust unit is arranged in parallel with the fresh air unit and is used for exhausting indoor air to the outside;
the pulsating heat pipe sensible heat type heat exchange unit is a pulsating heat pipe sensible heat exchanger and comprises a heat pipe condensation section arranged in the fresh air unit and a heat pipe evaporation section arranged in the exhaust unit, the pulsating heat pipe sensible heat type heat exchange unit also comprises a plurality of pulsating heat pipes, two ends of each pulsating heat pipe are respectively positioned in the heat pipe condensation section and the heat pipe evaporation section, and working media are filled in each pulsating heat pipe; when the fresh air dehumidification integrated machine runs, working media in the pulsating heat pipe in the heat pipe evaporation section absorb heat to generate bubbles so as to increase the pressure in the heat pipe evaporation section and convey the working media to the pulsating heat pipe in the heat pipe condensation section, and the bubbles in the pulsating heat pipe in the heat pipe condensation section shrink and break so as to reduce the pressure in the heat pipe condensation section and output heat to the fresh air unit;
the detection unit comprises a plurality of detectors arranged in the fresh air unit and the air exhaust unit and is used for respectively detecting the flow velocity and the humidity of air in the fresh air unit and the air exhaust unit;
and the central control unit is respectively connected with the detection unit, the fresh air unit and the components in the exhaust unit and is used for adjusting working parameters of corresponding components in the fresh air unit and the exhaust unit to corresponding values according to the flow rate and the humidity of the air in the fresh air unit and the exhaust unit, which are measured by the detection unit, so that the flow rate and the humidity of the air in the fresh air unit and the exhaust unit meet the standard.
Further, the new trend unit includes:
the fresh air channel is used for conveying outdoor air to the interior, and a fresh air inlet and a fresh air outlet are respectively arranged at two ends of the fresh air channel;
the first spraying hydrophobic material filter is arranged at one end, close to the fresh air inlet, in the fresh air duct and is used for isolating moisture in air entering the fresh air duct;
the fresh air fan is arranged at one end, close to the fresh air outlet, in the fresh air duct and used for driving air in the fresh air duct to flow; the fresh air fan is connected with the central control unit;
the first spraying hydrophobic material filter and the fresh air fan are respectively positioned on two sides of the heat pipe condensation section.
Further, the air exhaust unit includes:
and the exhaust channel is used for conveying indoor dirty air to the outside through the exhaust fan, and an exhaust inlet and an exhaust outlet are arranged on two sides of the exhaust channel.
The second spraying hydrophobic material filter is arranged at one end, close to the exhaust inlet, in the exhaust air duct and is used for isolating moisture in air entering the exhaust air duct;
the air exhaust fan is arranged at one end, close to the air exhaust outlet, in the air exhaust duct and used for driving air in the air exhaust duct to flow; the exhaust fan is connected with the central control unit;
the second spraying hydrophobic material filter and the exhaust fan are respectively positioned at two sides of the heat pipe evaporation section.
Further, the detection unit includes
The fresh air flow velocity detector is arranged on the side wall between the bypass air channel and the fresh air channel, is positioned between the fresh air fan and the fresh air outlet and is used for detecting the flow velocity of air in the fresh air channel;
the air exhaust flow velocity detector is arranged on the side wall of the air exhaust channel, is positioned between the air exhaust fan and the heat pipe evaporation section and is used for detecting the flow velocity of air in the air exhaust channel;
the fresh air humidity detector is arranged on the side walls of the fresh air duct and the exhaust air duct, is positioned between the first spray hydrophobic material filter and the heat pipe condensation section and is used for detecting the humidity of air in the fresh air duct;
and the exhaust air humidity detector is arranged on the side wall of the exhaust air channel, is positioned between the second spray hydrophobic material filter and the heat pipe evaporation section and is used for detecting the humidity of the air in the exhaust air channel.
Furthermore, a preset humidity H0 is arranged in the central control unit, when the system runs, the central control unit controls the fresh air humidity detector to detect the humidity Ha of the air in the fresh air unit and controls the exhaust air humidity detector to detect the humidity Hb of the air in the exhaust air unit, the central control unit compares Ha and Hb with H0 in sequence when the detection is finished,
if Ha is H0, the central control unit judges that the humidity of the air in the fresh air unit meets the standard, and if Ha is not equal to H0, the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, calculates a fresh air humidity difference value delta Ha and adjusts the rotating speed of the fresh air fan to a corresponding value according to delta Ha;
if Hb is H0, the central control unit judges that the humidity of the air in the fresh air unit meets the standard, and if Hb is not equal to H0, the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, calculates an exhaust air humidity difference value delta Hb and adjusts the rotating speed of the exhaust air fan to a corresponding value according to the delta Hb.
Furthermore, a first preset humidity difference value delta H1, a second preset humidity difference value delta H2, a first preset rotating speed adjusting coefficient alpha 1, a second preset rotating speed adjusting coefficient alpha 2 and a third preset rotating speed adjusting coefficient alpha 3 are further arranged in the central control unit, wherein delta H1 is smaller than delta H2, and alpha 1 is larger than 0.8 and smaller than alpha 1 and smaller than alpha 2 and smaller than alpha 3 and smaller than 1; when the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, the central control unit compares the Delta Ha with each preset humidity difference value in sequence,
if the delta Ha is less than or equal to the delta H1, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 3;
if the delta H1 is more than the delta Ha and less than or equal to the delta H2, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 2;
if delta Ha > -delta H2, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 1;
when the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using the alpha i, the rotating speed of the adjusted fresh air fan is recorded as Wa ', i is set to be 1, 2 and 3, Wa' Wax (2-alpha i) if Ha is larger than H0, and Delta Ha is set to be H0-Ha if Ha is smaller than H0, wherein Wa is the initial rotating speed of the fresh air fan.
Further, when the central control unit judges that the humidity of the air in the air exhaust unit does not meet the standard,
the central control unit compares the delta Hb with each preset humidity difference value in sequence,
if the Delta Hb is less than or equal to the Delta H1, the central control unit adjusts the rotating speed of the exhaust fan to a corresponding value by using alpha 3;
if the delta H1 is less than the delta Hb and less than or equal to the delta H2, the central control unit adjusts the rotating speed of the exhaust fan to a corresponding value by using alpha 2;
if delta Hb is > -delta H2, the central control unit adjusts the rotating speed of the exhaust fan to a corresponding value by using alpha 1;
when the central control unit adjusts the rotation speed of the exhaust fan to a corresponding value by using the α i, the adjusted rotation speed of the exhaust fan is recorded as Wb', i is set to be 1, 2 and 3, Wb × (2- α i) is set if Hb is greater than H0, and Δ Hb is set to be H0-Hb if Hb is less than H0, wherein Wb is the initial rotation speed of the exhaust fan.
Furthermore, a preset air flow rate proportion B0 is also arranged in the central control unit,
when the central control unit judges that the humidity of the air in the fresh air unit and the humidity of the air in the fresh air unit do not meet the standard and the regulation of the rotating speeds of the fresh air fan and the exhaust fan is finished, the central control unit controls the fresh air flow velocity detector to detect the flow velocity Va of the air in the fresh air unit, controls the exhaust flow velocity detector to detect the flow velocity Vb of the air in the exhaust unit and calculates the air flow velocity ratio B, sets B to be Va/Vb, and after the calculation is finished, the central control unit compares B with B0,
if B is more than B0, the central control unit judges that the air flow speed in the fresh air unit is too high, and controls the fresh air fan to gradually reduce the rotating speed until the adjusted flow speed ratio B' is B0;
if B is B0, the central control unit judges that the flow rate ratio of the air in the fresh air unit and the air exhaust unit meets the standard;
if B is less than B0, the central control unit judges that the air flow in the fresh air unit is too slow, and controls the fresh air fan to gradually increase the rotating speed until the flow rate ratio B' after adjustment is B0.
Furthermore, a preset maximum fresh air rotating speed Wamax and a preset maximum exhaust rotating speed Wbmax are also arranged in the central control unit,
when the central control unit judges that the maximum fresh air rotating speed needs to be adjusted to Wa ', the central control unit compares the Wa ' with the Wamax, if Wa ' is less than or equal to the Wamax, the central control unit adjusts the rotating speed of the fresh air fan to Wa ', and if Wa ' is greater than the Wamax, the central control unit judges that the first water-repellent material adding filter fails and sends out a change alarm;
when the central control unit judges that the maximum exhaust rotating speed needs to be adjusted to Wb ', the central control unit compares Wb ' with Wbmax, if Wb ' is less than or equal to Wbmax, the central control unit adjusts the rotating speed of the exhaust fan to Wb ', and if Wb ' is greater than Wbmax, the central control unit judges that the second additional spraying hydrophobic material filter has a fault and sends out a change alarm;
furthermore, a channel is arranged between the fresh air duct and the exhaust air duct, the channel is positioned on the side walls of the fresh air duct and the exhaust air duct, and the channel is arranged between the condensation section and the compressor and used for returning part of air conveyed by the exhaust air duct to the fresh air duct.
Compared with the prior art, the fresh air dehumidification all-in-one machine has the beneficial effects that the pulsating heat pipe is combined with the fresh air dehumidification all-in-one machine, and the working medium in the pulsating heat pipe can realize self oscillation under the heat drive through the characteristics that the working medium in the pulsating heat pipe is heated to generate bubbles and cools to shrink the bubbles, so that the sensible heat exchange unit of the pulsating heat pipe, which is located by the pulsating heat pipe, and air in the fresh air unit and the air exhaust unit realize self heat exchange, and the heat exchange efficiency of the fresh air dehumidification all-in-one machine is effectively improved.
Furthermore, the single pulsating heat pipe is vacuum, and the working medium inside the pulsating heat pipe forms liquid columns and bubble columns which are randomly distributed, and the working medium inside the pulsating heat pipe can vibrate and flow between the evaporation section and the condensation section when the pulsating heat pipe is heated or cooled through the liquid columns and the bubble columns which are randomly distributed in the pulsating heat pipe, so that external mechanical work and electric work are not required to be consumed while heat transfer is realized, and the energy consumption of the fresh air dehumidification all-in-one machine in the operation process is effectively reduced.
Furthermore, the heat recovery unit is positioned between the heat exchange condensation section and the fresh air fan and used for absorbing cooled air, the refrigerant is vaporized into steam, and the air is cooled, so that the temperature is reduced; the first heat exchange is positioned between the heat exchange condensation section and the fresh air fan and used for absorbing cooled air, a refrigerant is vaporized into steam, and the air is cooled so as to reduce the temperature; the second heat exchanger is positioned between the first heat exchanger and the fresh air fan, the second heat exchanger and the first heat exchanger are arranged in parallel, the second heat exchanger is used for heating steam in air, in the heat release process, refrigerant steam is gradually condensed into refrigerant liquid, and the ambient air is heated.
Furthermore, a first spraying hydrophobic material filter is further arranged in the fresh air unit, a second spraying hydrophobic material filter is further arranged in the exhaust unit, and the spraying hydrophobic material filter is arranged in the air duct, so that when air enters the exhaust channel from the exhaust inlet, the humidity of the air input from the fresh air inlet and the exhaust inlet can be reduced, and the problem of condensation water accumulation in the prior art is further solved. The surface of the hydrophobic material has non-wettability and low surface viscosity. The air that gets into in the new trend dehumidification all-in-one is filtered to the filter, makes the cleanliness factor of air improve, prevents that the impurity that contains from getting into all-in-one system in the air to lead to the system to be destroyed. The air absorbs other tiny substances and more harmful substances in the air by utilizing the physical performance of the air during the time when the air passes through the filter.
Furthermore, a channel is arranged between the fresh air duct and the exhaust air duct, is positioned on the right side of the heat pipe condensation section and the heat pipe evaporation section, and is positioned on the right side of the fresh air channel and the exhaust air channel. When being in under fresh air dehumidification mode and the dehumidification mode, this passageway is opened, is convenient for take a breath between fresh air duct and the wind channel of airing exhaust.
Furthermore, the fresh air flow velocity detector is arranged on the side wall between the bypass air channel and the fresh air channel, is positioned between the fresh air fan and the fresh air outlet and is used for detecting the flow velocity of air in the fresh air channel; the air exhaust flow velocity detector is arranged on the side wall of the air exhaust channel, is positioned between the air exhaust fan and the heat pipe evaporation section and is used for detecting the flow velocity of air in the air exhaust channel; the fresh air humidity detector is arranged on the side walls of the fresh air duct and the exhaust air duct, is positioned between the first spray hydrophobic material filter and the heat pipe condensation section and is used for detecting the humidity of air in the fresh air duct; and the exhaust air humidity detector is arranged on the side wall of the exhaust air channel, is positioned between the second spray hydrophobic material filter and the heat pipe evaporation section and is used for detecting the humidity of the air in the exhaust air channel.
Furthermore, a preset humidity is set in the central control unit, when the system runs, the central control unit controls the fresh air humidity detector to detect the humidity of the air in the fresh air and exhaust unit, the central control unit sequentially compares the detected humidity with the preset humidity when the detection is finished, if the detected humidity is the same as the preset humidity, the humidity meets the standard, and if the detected humidity is different from the preset humidity, the wind speeds of the fresh air fan and the exhaust fan are adjusted to corresponding values; the rotating speed of the fan is adjusted by judging the humidity, so that the heat recovery rate is improved, and the working efficiency of the fresh air all-in-one machine is also improved.
Furthermore, a first preset humidity difference value delta H1, a second preset humidity difference value delta H2, a first preset rotating speed adjusting coefficient alpha 1, a second preset rotating speed adjusting coefficient alpha 2 and a third preset rotating speed adjusting coefficient alpha 3 are further arranged in the central control unit, wherein delta H1 is set to be less than delta H2, and alpha 1 is set to be more than 0.8 and less than alpha 1 and alpha 2 and less than alpha 3 and 1; when the central control unit judges that the humidity of the air in the fresh air unit and the air exhaust unit does not meet the standard, the central control unit compares the humidity difference value of the fresh air unit and the humidity difference value of the air exhaust unit with each preset humidity difference value in sequence, if the humidity difference value is smaller than the minimum value, the maximum third regulating coefficient is used for regulating the rotating speed of the fan, and if the humidity difference value is larger than the maximum value, the minimum first regulating coefficient is used for regulating the rotating speed of the fan; the rotating speed of the fan is adjusted according to the rotating speed adjusting coefficient of the interval where different humidity difference values are located by setting a preset humidity difference value, and the air quantity in the air channel is controlled, so that the normal operation of the machine is ensured, and the working efficiency of the fresh air all-in-one machine is further improved.
Furthermore, a preset air flow rate ratio is also arranged in the central control unit, when the central control unit judges that the humidity of the air in the fresh air unit and the humidity of the air in the fresh air unit do not accord with standards and the rotation speeds of the fresh air fan and the exhaust fan are adjusted, the central control unit controls the fresh air flow rate detector to detect the flow speeds of the air in the fresh air unit and the exhaust unit and calculates the air flow rate ratio, if the calculated air flow rate ratio is larger than the preset air flow rate ratio, the rotation speed of the fan is reduced to enable the air flow rate to be equal to the preset air flow rate ratio, if the calculated air flow rate ratio is equal to the preset air flow rate ratio, the rotation speed of the fan is not adjusted, if the calculated air flow rate ratio is smaller than the preset air flow rate ratio, the rotation speed of the fan is increased to enable the air flow rate to be equal to the air flow rate, the air pressure between the fresh air unit and the exhaust unit is within a normal range, and normal operation of the fresh air all-in-machine is ensured.
Furthermore, a preset maximum fresh air rotating speed and a preset maximum exhaust rotating speed are also arranged in the central control unit, when the central control unit judges that the maximum fresh air rotating speed and the exhaust rotating speed need to be adjusted to Wa ' and Wb ', the central control unit compares the Wa ' and the Wb with the preset maximum fresh air rotating speed, if the Wa and the Wb are smaller than the maximum fresh air rotating speed, the central control unit adjusts the rotating speed of the fresh air fan to Wa ' and Wb, and if the Wa ' and the Wb are larger than the maximum fresh air rotating speed, the central control unit judges that the first spray hydrophobic material filter and the second spray hydrophobic material filter have faults and sends out a change alarm; due to the particularity of the filter for spraying the hydrophobic material, the surface of the filter is non-wetting, other tiny substances and more harmful substances in the air can be adsorbed, the air entering the fresh air dehumidification integrated machine is filtered, the cleanliness of the air is improved, and impurities contained in the air are prevented from entering the integrated machine system, so that the system is damaged.
Drawings
FIG. 1 is a schematic structural diagram of an integrated fresh air dehumidifying all-in-one machine for heat recovery by using pulsating heat pipes according to the present invention;
FIG. 2 is a line connection diagram of the heat recovery unit of the present invention;
FIG. 3 is a schematic structural diagram of the fresh air dehumidification integrated machine shown in FIG. 1 during a fresh air dehumidification mode;
FIG. 4 is a schematic structural diagram of the fresh air dehumidification integrated machine shown in FIG. 1 in a dehumidification mode;
fig. 5 is a schematic structural diagram of the fresh air dehumidification integrated machine shown in fig. 1 in a fresh air operation mode.
Description of reference numerals: 1. a side air fan; 2. a movable air valve device; 3. a bypass air channel; 4. a pulsating heat pipe sensible heat exchanger; 5. a heat pipe condensation section; 6. a first heat exchanger; 7. a compressor; 8. a second heat exchanger; 9. a fresh air fan; 10. a fresh air outlet; 11. an electromagnetic flow regulating valve; 12. a four-way valve; 13. an exhaust inlet; 14. A second spray hydrophobic material filter; 15. an air exhaust channel; 16. a heat pipe evaporation section; 17. an exhaust fan; 18. An exhaust outlet; 19. a fresh air duct; 20. a fresh air inlet; 21. a first spray hydrophobic material filter; 22. A bypass air outlet; 23. a fresh air flow velocity detector; 24. an exhaust air humidity detector; 25. a fresh air humidity detector; 26. exhaust flow velocity detector
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, it is a schematic structural diagram of an integrated fresh air and dehumidification integrated machine using pulsating heat pipes for heat recovery according to the present invention, and the system includes: the heat exchanger comprises a fresh air unit, an air exhaust unit and a pulsating heat pipe heat-sensible type heat exchange unit, wherein the air exhaust unit and the fresh air unit are arranged in parallel. The sensible heat type heat exchange unit of the pulsating heat pipe is a pulsating heat pipe sensible heat type heat exchanger 4 and comprises a heat pipe condensation section 5 arranged in the fresh air unit and a heat pipe evaporation section 16 arranged in the exhaust unit, the sensible heat type heat exchange unit of the pulsating heat pipe further comprises a plurality of pulsating heat pipes, two ends of each pulsating heat pipe are respectively positioned in the heat pipe condensation section 5 and the heat pipe evaporation section 16, and working media are filled in each pulsating heat pipe. When the fresh air dehumidification integrated machine operates, working media in the pulsating heat pipes in the heat pipe evaporation section 16 absorb heat to generate bubbles so as to increase the pressure in the heat pipe evaporation section 16 and convey the working media to the pulsating heat pipes in the heat pipe condensation section 5, and the bubbles in the pulsating heat pipes in the heat pipe condensation section 5 contract and break so as to reduce the pressure in the heat pipe condensation section 5 and output heat to the fresh air unit; the working medium can randomly form a plurality of liquid plugs and air plugs with different lengths in the pulsating heat pipe under the action of the surface tension of bubbles when the fresh air dehumidification integrated machine runs, and the liquid plugs and the air plugs are unstable and have random pulsating flow in the direction between the heating section and the cooling section under the action of heat, so that heat transfer is realized. The heat pipe has the characteristics of large heat transfer coefficient, high heat transfer speed, small temperature drop, simple structure, easiness in control, high heat exchange efficiency, small pressure loss, uniform temperature of the heat exchange plates and difficulty in scaling, and the heat recovery rate of the fresh air dehumidification integrated machine is improved.
As shown in fig. 1, the fresh air unit of the present invention includes a fresh air duct 19, a fresh air blower 9 and a first sprayed hydrophobic material filter 21, wherein the fresh air duct 19 is used for conveying outdoor air to the indoor, and a fresh air inlet 20 and a fresh air outlet 10 are respectively disposed at two ends of the fresh air duct; the first spraying hydrophobic material filter 21 is arranged at one end, close to the fresh air inlet 20, in the fresh air duct 19 and is used for isolating moisture in air entering the fresh air duct 19; the fresh air fan 9 is arranged at one end of the fresh air duct 19 close to the fresh air outlet 10 and used for driving air in the fresh air duct 19 to flow; when the fresh air unit operates, the fresh air fan 9 is started to convey outdoor air to the indoor, the outdoor air enters the fresh air duct 19 through the fresh air inlet 20, the first spraying hydrophobic material filter 21 filters moisture in the air entering the fresh air duct 19, and the dehumidified air passes through the heat pipe condensation section 5 to exchange heat with working media in the heat pipe condensation section 5 and enters the indoor through the fresh air outlet 10 after the heat exchange is completed.
As shown in fig. 1, the air exhaust unit of the present invention is disposed in parallel with the fresh air unit for exhausting indoor air to the outside; and the exhaust channel 15 is used for conveying indoor dirty air to the outside through an exhaust fan 17, and an exhaust inlet 13 and an exhaust outlet 18 are arranged on two sides of the exhaust channel 15. A second spraying hydrophobic material filter 14, which is arranged at one end of the exhaust air duct close to the exhaust air inlet 13 and is used for isolating moisture in the air entering the exhaust air duct; an exhaust fan 17 disposed at one end of the exhaust duct near the exhaust outlet 18 for driving air in the exhaust duct to flow; when the exhaust unit operates, the exhaust fan 17 is started to deliver indoor air to the outdoor, the indoor air enters the exhaust air duct 15 through the exhaust air inlet 13, the second spraying hydrophobic material filter 14 filters moisture and impurities in the air entering the exhaust air duct 15, and the dehumidified air enters the outdoor through the exhaust air outlet 18.
As shown in fig. 1, the fresh air dehumidifying all-in-one machine of the present invention further comprises an air bypass unit, which is arranged in parallel with the fresh air unit and includes an air bypass outlet 22, an air bypass blower 1 and a movable air valve device 2, wherein the air bypass channel 3 is used for assisting the fresh air duct 19 and the exhaust air to complete the heat and cold exchange; the side air outlet 22 is arranged at one end of the left side of the side air channel 3. The side wind fan 1 is arranged at one end, close to the side wind outlet 22, in the side wind channel 3 and used for pushing the flow velocity of air in a side wind channel system and assisting in finishing ventilation of a fresh air channel. Specifically, the side air channel 3 is provided with a movable air valve device 2, which is arranged below the side air fan 1 and on the side wall between the side air channel 3 and the fresh air duct 19. The movable air valve device 2 changes the opening and closing states according to different use modes, is opened in a fresh air dehumidification mode and a fresh air mode, and is automatically closed in the dehumidification mode; when the side wind unit operates, the movable wind valve device 2 is opened, the side wind fan 1 is started to convey air in the fresh air channel to the outside, and the air enters the side wind channel from the movable wind valve device and then is discharged from a side wind outlet.
Continuing to refer to fig. 1, a preset humidity H0 is set in the central control unit, when the system is running, the central control unit controls the fresh air humidity detector to detect the humidity Ha of the air in the fresh air unit and controls the exhaust air humidity detector to detect the humidity Hb of the air in the exhaust air unit, and when the detection is completed, the central control unit compares Ha and Hb with H0 in sequence; if Ha is H0, the central control unit judges that the humidity of the air in the fresh air unit meets the standard, and if Ha is not equal to H0, the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, calculates a fresh air humidity difference value delta Ha and adjusts the rotating speed of the fresh air fan to a corresponding value according to delta Ha; if Hb is H0, the central control unit judges that the humidity of the air in the fresh air unit meets the standard, and if Hb is not equal to H0, the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, calculates an exhaust air humidity difference value delta Hb and adjusts the rotating speed of the exhaust air fan to a corresponding value according to the delta Hb.
The central control unit is also provided with a first preset humidity difference delta H1, a second preset humidity difference delta H2, a first preset rotating speed adjusting coefficient alpha 1, a second preset rotating speed adjusting coefficient alpha 2 and a third preset rotating speed adjusting coefficient alpha 3, wherein delta H1 is less than delta H2, and alpha 1 is more than 0.8 and less than alpha 2 and less than alpha 3 and less than 1; when the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, the central control unit compares the Delta Ha with each preset humidity difference value in sequence; if the delta Ha is less than or equal to the delta H1, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 3; if the delta H1 is more than the delta Ha and less than or equal to the delta H2, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 2; if delta Ha > -delta H2, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 1; when the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using the alpha i, the rotating speed of the adjusted fresh air fan is recorded as Wa ', i is set to be 1, 2 and 3, Wa' Wax (2-alpha i) if Ha is larger than H0, and Delta Ha is set to be H0-Ha if Ha is smaller than H0, wherein Wa is the initial rotating speed of the fresh air fan.
When the central control unit judges that the humidity of the air in the air exhaust unit does not meet the standard, the central control unit compares the delta Hb with each preset humidity difference value in sequence, and if the delta Hb is less than or equal to the delta H1, the central control unit adjusts the rotating speed of the air exhaust fan to a corresponding value by using alpha 3; if the delta H1 is less than the delta Hb and less than or equal to the delta H2, the central control unit adjusts the rotating speed of the exhaust fan to a corresponding value by using alpha 2; if delta Hb is > -delta H2, the central control unit adjusts the rotating speed of the exhaust fan to a corresponding value by using alpha 1; when the central control unit adjusts the rotation speed of the exhaust fan to a corresponding value by using the α i, the adjusted rotation speed of the exhaust fan is recorded as Wb', i is set to be 1, 2 and 3, Wb × (2- α i) is set if Hb is greater than H0, and Δ Hb is set to be H0-Hb if Hb is less than H0, wherein Wb is the initial rotation speed of the exhaust fan.
The central control unit is also provided with a preset air flow rate ratio B0, when the central control unit judges that the humidity of the air in the fresh air unit and the humidity of the air in the fresh air unit do not meet the standard and the rotation speeds of the fresh air fan and the exhaust fan are adjusted, the central control unit controls the fresh air flow rate detector to detect the flow rate Va of the air in the fresh air unit, controls the exhaust air flow rate detector to detect the flow rate Vb of the air in the exhaust unit and calculates an air flow rate ratio B, B is set to be Va/Vb, after calculation, the central control unit compares B with B0, if B is larger than B0, the central control unit judges that the air flow rate in the fresh air unit is too high and controls the fresh air fan to gradually reduce the rotation speed until the adjusted flow rate ratio B' is set to be B0; if B is B0, the central control unit judges that the flow rate ratio of the air in the fresh air unit and the air exhaust unit meets the standard; if B is less than B0, the central control unit judges that the air flow in the fresh air unit is too slow, and controls the fresh air fan to gradually increase the rotating speed until the flow rate ratio B' after adjustment is B0. Furthermore, a preset maximum fresh air rotating speed Wamax and a preset maximum exhaust rotating speed Wbmax are also arranged in the central control unit, when the central control unit judges that the maximum fresh air rotating speed needs to be adjusted to Wa ', the central control unit compares the Wa ' with the Wamax, if Wa ' is less than or equal to Wamax, the central control unit adjusts the rotating speed of the fresh air fan to Wa ', and if Wa ' is greater than Wamax, the central control unit judges that the first water-repellent material adding filter fails and gives out a change alarm; when the central control unit judges that the maximum exhaust rotating speed needs to be adjusted to Wb ', the central control unit compares Wb ' with Wbmax, if Wb ' is less than or equal to Wbmax, the central control unit adjusts the rotating speed of the exhaust fan to Wb ', and if Wb ' is greater than Wbmax, the central control unit judges that the second additional spraying hydrophobic material filter has a fault and sends out a change alarm;
specifically, the pulsating heat pipe is an electronic device cooler, for a single pulsating heat pipe, the single pulsating heat pipe is a metal capillary, the interior of the single pulsating heat pipe is vacuum, working media in the pulsating heat pipe form a liquid column and a bubble column which are randomly distributed, and the types of the working media comprise one of water, methanol, ethanol and freon.
As shown in fig. 1 and fig. 2, the fresh air dehumidification integrated machine is further provided with a heat recovery unit, which includes a first heat exchanger 6, a second heat exchanger 8, a compressor 7, an electromagnetic flow control valve 11, and a four-way valve 12. The air conditioner is positioned between the heat exchange condensation section and the fresh air fan 9 and used for absorbing cooled air, vaporizing a refrigerant into steam, cooling the air and further reducing the temperature; the first heat exchanger 6 is positioned between the heat exchange condensation section and the fresh air fan 9 and used for absorbing cooled air, a refrigerant is vaporized into steam, and the air is cooled, so that the temperature is reduced; the second heat exchanger 8 is positioned between the first heat exchanger 6 and the fresh air fan 9, the second heat exchanger 8 and the first heat exchanger 6 are arranged in parallel, and the second heat exchanger 8 is used for heating steam in air, so that in the heat release process, refrigerant steam is gradually condensed into refrigerant liquid, and the ambient air is heated; the four-way valve 12 is positioned between the first heat exchanger 6 and the second heat exchanger 8, the four-way valve 12 is positioned at the lower parts of the first heat exchanger 6 and the second heat exchanger 8, and the four-way valve 12 is respectively connected with the evaporator, the condenser, the electromagnetic flow regulating valve 11 and the compressor 7; the compressor 7 is positioned below the four-way valve 12, is connected with the four-way valve 12 and the electromagnetic flow regulating valve 11, and is used for controlling moisture in air, and condensing and frosting when the moisture in the air enters the evaporator, so that the purpose of reducing the space humidity is achieved, and the indoor environment is kept relatively constant under the condition of humidity reduction; when receiving the signal of the adjusting part, the electromagnetic flow adjusting valve automatically controls the opening of the valve to complete the adjustment of the medium flow, the pressure and the liquid level. When the use condition limits the compressor 7 to be installed in a smaller closed space, an air extracting and exhausting device is required to be additionally installed so as to facilitate the circulation of air. The basic principle is that the air cooled by the evaporator is reheated to the original temperature and then fed into the room, so that the indoor environment remains relatively constant in the event of a decrease in humidity.
Referring to fig. 3, it is a schematic structural diagram of the integrated fresh air dehumidifier in the fresh air dehumidification mode, when the integrated fresh air dehumidifier is in the fresh air dehumidification mode, the compressor 7, the fresh air fan 9, and the exhaust air fan 17 operate, the fresh air and another part of the indoor return air sequentially pass through the first heat exchanger 6 as an evaporator and the second heat exchanger 8 as a condenser and are then sent into the room, and the outdoor fresh air and a part of the indoor return air exchange cold and heat through the pulsating heat pipe sensible heat exchanger 4 and then are discharged out of the room.
Please refer to fig. 4, which is a schematic structural diagram of the fresh air dehumidification integrated machine in the dehumidification operation mode, when the fresh air dehumidification integrated machine is in the dehumidification operation mode, the exhaust fan 17 is turned off, and the compressor 7 and the fresh air fan 9 operate. Indoor return air enters through an exhaust air inlet 13, is dehumidified at constant temperature through a first heat exchanger 6 serving as an evaporator and a second heat exchanger 8 serving as a condenser in sequence, and then enters indoors through a fresh air outlet 10.
Please refer to fig. 5, which is a schematic structural diagram of the fresh air dehumidifying all-in-one machine in the fresh air operation mode, when the fresh air dehumidifying all-in-one machine is in the fresh air operation mode, the fresh air fan 9 and the exhaust air fan 17 are operated, and the compressor 7 is turned off. After the cold and heat exchange between the outdoor fresh air and the indoor return air is carried out by the pulsating heat pipe heat-sensible heat exchanger 4, the dirty air is discharged outdoors, and the fresh air enters indoors.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an adopt pulsating heat pipe to carry out heat recovery's integral new trend all-in-one that dehumidifies which characterized in that includes:
the fresh air unit is used for conveying outdoor air to the indoor space;
the air exhaust unit is arranged in parallel with the fresh air unit and is used for exhausting indoor air to the outside;
the pulsating heat pipe sensible heat type heat exchange unit is a pulsating heat pipe sensible heat exchanger and comprises a heat pipe condensation section arranged in the fresh air unit and a heat pipe evaporation section arranged in the exhaust unit, the pulsating heat pipe sensible heat type heat exchange unit also comprises a plurality of pulsating heat pipes, two ends of each pulsating heat pipe are respectively positioned in the heat pipe condensation section and the heat pipe evaporation section, and working media are filled in each pulsating heat pipe; when the fresh air dehumidification integrated machine runs, working media in the pulsating heat pipe in the heat pipe evaporation section absorb heat to generate bubbles so as to increase the pressure in the heat pipe evaporation section and convey the working media to the pulsating heat pipe in the heat pipe condensation section, and the bubbles in the pulsating heat pipe in the heat pipe condensation section shrink and break so as to reduce the pressure in the heat pipe condensation section and output heat to the fresh air unit;
the detection unit comprises a plurality of detectors arranged in the fresh air unit and the air exhaust unit and is used for respectively detecting the flow velocity and the humidity of air in the fresh air unit and the air exhaust unit;
and the central control unit is respectively connected with the detection unit, the fresh air unit and the components in the exhaust unit and is used for adjusting working parameters of corresponding components in the fresh air unit and the exhaust unit to corresponding values according to the flow rate and the humidity of the air in the fresh air unit and the exhaust unit, which are measured by the detection unit, so that the flow rate and the humidity of the air in the fresh air unit and the exhaust unit meet the standard.
2. The integrated fresh air dehumidifying all-in-one machine for heat recovery by using pulsating heat pipes as claimed in claim 1, wherein the fresh air unit comprises:
the fresh air channel is used for conveying outdoor air to the interior, and a fresh air inlet and a fresh air outlet are respectively arranged at two ends of the fresh air channel;
the first spraying hydrophobic material filter is arranged at one end, close to the fresh air inlet, in the fresh air duct and is used for isolating moisture in air entering the fresh air duct;
the fresh air fan is arranged at one end, close to the fresh air outlet, in the fresh air duct and used for driving air in the fresh air duct to flow; the fresh air fan is connected with the central control unit;
the first spraying hydrophobic material filter and the fresh air fan are respectively positioned on two sides of the heat pipe condensation section.
3. The integrated fresh air and dehumidification integrated machine adopting pulsating heat pipes for heat recovery according to claim 2, wherein the air exhaust unit comprises:
and the exhaust channel is used for conveying indoor dirty air to the outside through the exhaust fan, and an exhaust inlet and an exhaust outlet are arranged on two sides of the exhaust channel.
The second spraying hydrophobic material filter is arranged at one end, close to the exhaust inlet, in the exhaust air duct and is used for isolating moisture in air entering the exhaust air duct;
the air exhaust fan is arranged at one end, close to the air exhaust outlet, in the air exhaust duct and used for driving air in the air exhaust duct to flow; the exhaust fan is connected with the central control unit;
the second spraying hydrophobic material filter and the exhaust fan are respectively positioned at two sides of the heat pipe evaporation section.
4. The integrated fresh air and dehumidification integrated machine adopting pulsating heat pipes for heat recovery as claimed in claim 3, wherein the detection unit comprises
The fresh air flow velocity detector is arranged on the side wall between the bypass air channel and the fresh air channel, is positioned between the fresh air fan and the fresh air outlet and is used for detecting the flow velocity of air in the fresh air channel;
the air exhaust flow velocity detector is arranged on the side wall of the air exhaust channel, is positioned between the air exhaust fan and the heat pipe evaporation section and is used for detecting the flow velocity of air in the air exhaust channel;
the fresh air humidity detector is arranged on the side walls of the fresh air duct and the exhaust air duct, is positioned between the first spray hydrophobic material filter and the heat pipe condensation section and is used for detecting the humidity of air in the fresh air duct;
and the exhaust air humidity detector is arranged on the side wall of the exhaust air channel, is positioned between the second spray hydrophobic material filter and the heat pipe evaporation section and is used for detecting the humidity of the air in the exhaust air channel.
5. The integrated fresh air and dehumidification all-in-one machine adopting the pulsating heat pipe for heat recovery as claimed in claim 4, wherein a preset humidity H0 is set in the central control unit, when the system is running, the central control unit controls the fresh air humidity detector to detect the humidity Ha of the air in the fresh air unit and controls the exhaust air humidity detector to detect the humidity Hb of the air in the exhaust air unit, the central control unit compares Ha and Hb with H0 in turn when the detection is completed,
if Ha is H0, the central control unit judges that the humidity of the air in the fresh air unit meets the standard, and if Ha is not equal to H0, the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, calculates a fresh air humidity difference value delta Ha and adjusts the rotating speed of the fresh air fan to a corresponding value according to delta Ha;
if Hb is H0, the central control unit judges that the humidity of the air in the fresh air unit meets the standard, and if Hb is not equal to H0, the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, calculates an exhaust air humidity difference value delta Hb and adjusts the rotating speed of the exhaust air fan to a corresponding value according to the delta Hb.
6. The integrated fresh air and dehumidification all-in-one machine adopting the pulsating heat pipe for heat recovery as claimed in claim 5, wherein a first preset humidity difference Δ H1, a second preset humidity difference Δ H2, a first preset rotation speed adjustment coefficient α 1, a second preset rotation speed adjustment coefficient α 2 and a third preset rotation speed adjustment coefficient α 3 are further provided in the central control unit, wherein Δ H1 is smaller than Δ H2, and 0.8 < α 1 < α 2 < α 3 < 1; when the central control unit judges that the humidity of the air in the fresh air unit does not meet the standard, the central control unit compares the Delta Ha with each preset humidity difference value in sequence,
if the delta Ha is less than or equal to the delta H1, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 3;
if the delta H1 is more than the delta Ha and less than or equal to the delta H2, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 2;
if delta Ha > -delta H2, the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using alpha 1;
when the central control unit adjusts the rotating speed of the fresh air fan to a corresponding value by using the alpha i, the rotating speed of the adjusted fresh air fan is recorded as Wa ', i is set to be 1, 2 and 3, Wa' Wax (2-alpha i) if Ha is larger than H0, and Delta Ha is set to be H0-Ha if Ha is smaller than H0, wherein Wa is the initial rotating speed of the fresh air fan.
7. The integrated fresh air and dehumidification integrated machine adopting pulsating heat pipes for heat recovery as claimed in claim 6, wherein when the central control unit determines that the humidity of the air in the exhaust unit does not meet the standard,
the central control unit compares the Delta Hb with each preset humidity difference value in sequence,
if the Delta Hb is less than or equal to the Delta H1, the central control unit adjusts the rotating speed of the exhaust fan to a corresponding value by using alpha 3;
if the delta H1 is less than the delta Hb and less than or equal to the delta H2, the central control unit adjusts the rotating speed of the exhaust fan to a corresponding value by using alpha 2;
if delta Hb is > -delta H2, the central control unit adjusts the rotating speed of the exhaust fan to a corresponding value by using alpha 1;
when the central control unit adjusts the rotation speed of the exhaust fan to a corresponding value by using the α i, the adjusted rotation speed of the exhaust fan is recorded as Wb', i is set to be 1, 2 and 3, Wb × (2- α i) is set if Hb is greater than H0, and Δ Hb is set to be H0-Hb if Hb is less than H0, wherein Wb is the initial rotation speed of the exhaust fan.
8. The integrated fresh air and dehumidification integrated machine adopting pulsating heat pipes for heat recovery as claimed in claim 7, wherein a preset air flow rate ratio B0 is further provided in the central control unit,
when the central control unit judges that the humidity of the air in the fresh air unit and the humidity of the air in the fresh air unit do not meet the standard and the regulation of the rotating speeds of the fresh air fan and the exhaust fan is finished, the central control unit controls the fresh air flow velocity detector to detect the flow velocity Va of the air in the fresh air unit, controls the exhaust flow velocity detector to detect the flow velocity Vb of the air in the exhaust unit and calculates the air flow velocity ratio B, sets B to be Va/Vb, and after the calculation is finished, the central control unit compares B with B0,
if B is more than B0, the central control unit judges that the air flow speed in the fresh air unit is too high, and controls the fresh air fan to gradually reduce the rotating speed until the adjusted flow speed ratio B' is B0;
if B is B0, the central control unit judges that the flow rate ratio of the air in the fresh air unit and the air exhaust unit meets the standard;
if B is less than B0, the central control unit judges that the air flow in the fresh air unit is too slow, and controls the fresh air fan to gradually increase the rotating speed until the flow rate ratio B' after adjustment is B0.
9. The integrated fresh air dehumidifying machine using pulsating heat pipes for heat recovery as claimed in claim 7, wherein a preset maximum fresh air rotation speed Wamax and a preset maximum exhaust air rotation speed Wbmax are further provided in the central control unit,
when the central control unit judges that the maximum fresh air rotating speed needs to be adjusted to Wa ', the central control unit compares the Wa ' with the Wamax, if Wa ' is less than or equal to the Wamax, the central control unit adjusts the rotating speed of the fresh air fan to Wa ', and if Wa ' is greater than the Wamax, the central control unit judges that the first water-repellent material adding filter fails and sends out a change alarm;
when the central control unit judges that the maximum exhaust rotating speed needs to be adjusted to Wb ', the central control unit compares Wb ' with Wbmax, if Wb ' is less than or equal to Wbmax, the central control unit adjusts the rotating speed of the exhaust fan to Wb ', and if Wb ' is greater than Wbmax, the central control unit judges that the second additional spraying hydrophobic material filter has a fault and sends out a change alarm.
10. The integrated fresh air and moisture removal integrated machine for heat recovery by using pulsating heat pipes as claimed in claim 3, wherein a channel is provided between the fresh air duct and the exhaust air duct, the channel is located on the side walls of the fresh air duct and the exhaust air duct, and the channel is provided between the condensation section and the compressor for returning a portion of air delivered by the exhaust air duct to the fresh air duct.
CN202210131293.1A 2022-02-11 2022-02-11 Integrated fresh air dehumidification all-in-one machine adopting pulsating heat pipe for heat recovery Active CN114440432B (en)

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Publication number Priority date Publication date Assignee Title
JP2003028536A (en) * 2001-07-18 2003-01-29 Hitachi Ltd Air conditioner
JP2012091547A (en) * 2010-10-25 2012-05-17 Toyota Industries Corp Cooling system for hybrid vehicle
CN104266277A (en) * 2014-10-21 2015-01-07 东南大学 Heat pipe heat recovery all fresh air dehumidification air-conditioning device
CN106642426A (en) * 2017-01-20 2017-05-10 冯晓宏 Purification fresh air unit with dehumidifying and energy recycling functions and dehumidifying and purifying method of purification fresh air unit
CN113137672A (en) * 2021-04-13 2021-07-20 青岛海尔空调电子有限公司 Air conditioning system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003028536A (en) * 2001-07-18 2003-01-29 Hitachi Ltd Air conditioner
JP2012091547A (en) * 2010-10-25 2012-05-17 Toyota Industries Corp Cooling system for hybrid vehicle
CN104266277A (en) * 2014-10-21 2015-01-07 东南大学 Heat pipe heat recovery all fresh air dehumidification air-conditioning device
CN106642426A (en) * 2017-01-20 2017-05-10 冯晓宏 Purification fresh air unit with dehumidifying and energy recycling functions and dehumidifying and purifying method of purification fresh air unit
CN113137672A (en) * 2021-04-13 2021-07-20 青岛海尔空调电子有限公司 Air conditioning system

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