CN115095945A - Time-sharing temperature and humidity separate control method for air conditioner - Google Patents

Time-sharing temperature and humidity separate control method for air conditioner Download PDF

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Publication number
CN115095945A
CN115095945A CN202210771957.0A CN202210771957A CN115095945A CN 115095945 A CN115095945 A CN 115095945A CN 202210771957 A CN202210771957 A CN 202210771957A CN 115095945 A CN115095945 A CN 115095945A
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China
Prior art keywords
temperature
water
cold
air
source
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CN202210771957.0A
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Chinese (zh)
Inventor
霍小平
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Shanghai Dazhi Central Air Conditioning Technology Co ltd
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Shanghai Dazhi Central Air Conditioning Technology Co ltd
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Priority to CN202210771957.0A priority Critical patent/CN115095945A/en
Publication of CN115095945A publication Critical patent/CN115095945A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/06—Heat pumps characterised by the source of low potential heat
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/40—Geothermal heat-pumps

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

The invention discloses a time-sharing temperature and humidity separate control method for an air conditioner, which adopts a centralized double-cold-source system based on a water-ground source heat pump and a high-temperature water chilling unit, wherein a high-temperature cold source in summer is directly supplied by cold water on the water-ground source side to the maximum extent, the rest is supplied by the high-temperature water chilling unit, the water-ground source heat pump is arranged according to the dehumidification requirement in summer to supply low-temperature chilled water, the water-ground source heat pump is adopted for heating and heating in winter, a low-temperature cold source is adopted as an internally-cooled low-temperature cold source in a fresh air unit, the low-temperature cold source is adopted for independent dehumidification in plum rain seasons, a dry type fan coil is adopted for dehumidification, an air cooler is designed into a quasi-countercurrent mode, the number of pipe rows is increased, and the original three pipe rows are increased to four pipe rows. According to the time-sharing temperature and humidity separate control method for the air conditioner, the dry type fan coil is arranged, the problem that the building and decoration are damaged due to water leakage of condensed water is solved, bacteria breeding is prevented, and in the double-cold-source air conditioning system, the dehumidification of fresh air is completed by utilizing a self-carrying cold source, so that the dehumidification but no cooling target can be realized.

Description

Time-sharing temperature and humidity separate control method for air conditioner
Technical Field
The invention relates to the technical field of air conditioner refrigeration, in particular to a time-sharing temperature and humidity separate control method for an air conditioner.
Background
At present, an air conditioner is a common household appliance for people, and the air conditioner generally has the effects of refrigeration and heating. In the refrigeration process of the air conditioner, the air conditioner needs to process two loads with different properties, namely sensible heat and latent heat, wherein the sensible heat refers to indoor temperature, the latent heat refers to indoor humidity, and both the sensible heat and the latent heat affect the comfort level of people. When the air conditioner is used for treating latent heat in a room, the evaporation temperature of the air conditioner is required to be lower than the dew point temperature (the temperature of indoor water vapor condensation), and the air conditioner is low in efficiency; and for sensible heat, the evaporation temperature is lower than the indoor room temperature.
The problem that a ceiling is polluted by bacteria breeding and water leakage easily occurs due to the 'wet surfaces' of a surface cooler, a water condensation plate and the like in a conventional air conditioner, the surfaces of the wet coil pipes are often used as breeding places for pathogenic microorganisms such as bacteria, and the microorganisms are sent into the interior environment of a building along with air to pollute the interior environment of the building.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a time-sharing temperature and humidity control method for an air conditioner, which has the advantages of greatly improving the efficiency of an air conditioner refrigerating system and having obvious energy-saving effect and solves the problem of pollution of the internal environment of a building.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a time-sharing temperature and humidity separate control method for an air conditioner comprises the following steps:
s1: in the refrigerating unit, a refrigerant absorbs heat from the inside of an evaporator for refrigeration, the absorbed heat is condensed in a condenser for heat release, the heat released by the refrigerant in the condenser of the refrigerating unit is removed by cooling water, the heat taken away by the cooling water from the condenser is directly released to the atmosphere in a cooling tower, a chilled water circulating system continuously sends the cold energy generated by the refrigerating unit to a surface air cooler of an air conditioning unit through the chilled water for air treatment, and the treated air is sent into an air conditioning room and taken back by the air conditioning unit, a fan, an air valve, an air pipe, a return air inlet and the like so as to achieve the purpose of indoor air conditioning.
S2: a centralized double-cold-source system based on a water-ground source heat pump and a high-temperature water chilling unit is adopted, the cold water on the water-ground source side is utilized to the maximum extent in summer to be directly supplied, the rest is provided by the high-temperature water chilling unit, the water-ground source heat pump is arranged according to the dehumidification requirement in summer to provide low-temperature chilled water, and the water-ground source heat pump is adopted for heating in winter.
S3: the low-temperature cold source adopts an internal cooling type low-temperature cold source in the fresh air handling unit, and the low-temperature cold source is adopted for independent dehumidification in plum rain seasons.
S4: adopt dry-type fan coil to dehumidify, the surface cooler designs for accurate adverse current mode, increases the bank of tubes number simultaneously, increases original three calandria to four calandria.
Preferably, the high-temperature cold source in S2 can meet the cooling requirement by adopting cold water at the temperature of 13-19 ℃, the cold water with the temperature requirement provides conditions for the use of a plurality of natural cold sources, such as deep well water, cold water obtained by a soil heat exchanger and the like, and the cold water at the temperature of 13-19 ℃ is obtained in a direct evaporation or indirect evaporation mode in certain dry low regions.
Preferably, the internal-cooling double-cold-source fresh air unit in the S3 takes away condensation heat by means of indoor exhaust air, an external condensation system or a cooling system is not needed, and the internal-cooling double-cold-source fresh air unit needs to be installed in a machine room.
Preferably, in S4, in the area with a high temperature in summer, the dry type fan coil is required to be provided with a condensate water pan and a condensate water pipe.
(III) advantageous effects
Compared with the prior art, the invention provides a time-sharing temperature and humidity separate control method for an air conditioner, which has the following beneficial effects:
1. according to the time-sharing temperature and humidity separate control method for the air conditioner, by arranging the dry type fan coil, compared with a common fan coil, a condensation water pipeline can be omitted, the equipment investment and the installation cost of a project are reduced, the problem that the building and decoration are damaged by the water leakage of condensation water is avoided, bacteria are prevented from breeding, in the double-cold-source air conditioning system, the dehumidification of fresh air is completed by utilizing a self-contained cold source, the heat regeneration of the fresh air can be carried out without the help of an external source, and therefore the purpose that the dehumidification is not carried out is achieved.
2. According to the time-sharing temperature and humidity separate control method for the air conditioner, a fresh air processing system formed by a fresh air unit controls and adjusts the indoor humidity, the indoor positive pressure and the indoor air freshness; indoor temperature, cleanliness and uniformity are controlled by indoor air circulation end equipment and a system, so that independent control and adjustment of indoor temperature and humidity are realized, and indoor air parameters are adjusted and controlled more flexibly and conveniently.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a time-sharing temperature and humidity separate control method for an air conditioner comprises the following steps:
s1: in the refrigerating unit, the refrigerant absorbs heat from the inside of the evaporator for refrigeration, the absorbed heat is condensed in the condenser for heat release, the cooling water removes the heat released by the refrigerant in the condenser of the refrigerating unit, the heat taken away by the cooling water from the condenser is directly released to the atmosphere in the cooling tower, the chilled water circulation system continuously sends the cold generated by the refrigerating unit to the surface air cooler of the air conditioning unit through the chilled water for air treatment, and the treated air is sent into the air conditioning room and taken back by the air conditioning unit, the fan, the air valve, the air pipe, the air return inlet and the like, so that the purpose of indoor air conditioning is achieved.
S2: a centralized double-cold-source system based on a water-ground source heat pump and a high-temperature water chilling unit is adopted, the high-temperature cold source in summer is directly supplied by utilizing cold water on the water-ground source side to the maximum extent, the rest is supplied by the high-temperature water chilling unit, the water-ground source heat pump is arranged according to the dehumidification requirement in summer to supply low-temperature chilled water, the water-ground source heat pump is adopted for heating and supplying in winter, the high-temperature cold source in S2 can meet the cooling requirement by adopting cold water at the temperature of 13-19 ℃, the cold water with the temperature requirement provides conditions for the use of a plurality of natural cold sources, such as deep well water, cold water obtained through a soil heat exchanger and the like, and in some dry low regions, the cold water at the temperature of 13-19 ℃ is obtained through a direct evaporation or indirect evaporation mode.
S3: the low-temperature cold source adopts an internal-cooling type low-temperature cold source in the fresh air unit, the low-temperature cold source is used for independently dehumidifying in plum rain seasons, the internal-cooling type double-cold-source fresh air unit in S3 takes away condensation heat by means of indoor exhaust air, an external condensation system or a cooling system is not needed, and the internal-cooling type double-cold-source fresh air unit needs to be provided with a machine room for installation.
S4: adopt dry-type fan coil to dehumidify, the surface cooler designs for accurate adverse current mode, increases the bank of tubes number simultaneously, increases original three calandria to four calandria, in the higher area of summer temperature in S4, needs to give dry-type fan coil configuration condensate water dish and condensate pipe.
Example two:
a time-sharing temperature and humidity separate control method for an air conditioner comprises the following steps:
s1: in the refrigerating unit, a refrigerant absorbs heat from the inside of an evaporator for refrigeration, the absorbed heat is condensed in a condenser for heat release, the heat released by the refrigerant in the condenser of the refrigerating unit is removed by cooling water, the heat taken away by the cooling water from the condenser is directly released to the atmosphere in a cooling tower, a chilled water circulating system continuously sends the cold energy generated by the refrigerating unit to a surface air cooler of an air conditioning unit through the chilled water for air treatment, and the treated air is sent into an air conditioning room and taken back by the air conditioning unit, a fan, an air valve, an air pipe, a return air inlet and the like so as to achieve the purpose of indoor air conditioning.
S2: a centralized double-cold-source system based on a high-temperature water chilling unit and a conventional heat pump unit is characterized in that the high-temperature water chilling unit is used for cooling a dry tail end, the heat pump unit is used for dehumidifying a fresh air unit, the heat pump unit is used for heating in winter, a high-temperature cold source in S2 can meet the cooling requirement by adopting cold water at the temperature of 13-19 ℃, the cold water at the temperature provides conditions for using a plurality of natural cold sources, such as deep well water, cold water obtained through a soil heat exchanger and the like, and the cold water at the temperature of 13-19 ℃ is obtained in certain dry low regions through direct evaporation or indirect evaporation.
S3: the low-temperature cold source adopts an internal cooling type low-temperature cold source in the fresh air unit, the low-temperature cold source is adopted for independent dehumidification in plum rain seasons, the internal cooling type double-cold-source fresh air unit in S3 takes away condensation heat by means of indoor exhaust air, an external condensation system or a cooling system is not needed, and the internal cooling type double-cold-source fresh air unit needs to be provided with a machine room for installation.
S4: adopt dry-type fan coil to dehumidify, the surface cooler designs for accurate adverse current mode, increases the bank of tubes number simultaneously, increases original three calandria to four calandria, in the higher area of summer temperature in S4, needs to give dry-type fan coil configuration condensate water dish and condensate pipe.
Comparative example one:
a time-sharing temperature and humidity separate control method for an air conditioner comprises the following steps:
s1: in the refrigerating unit, the refrigerant absorbs heat from the inside of the evaporator for refrigeration, the absorbed heat is condensed in the condenser for heat release, the cooling water removes the heat released by the refrigerant in the condenser of the refrigerating unit, the heat taken away by the cooling water from the condenser is directly released to the atmosphere in the cooling tower, the chilled water circulation system continuously sends the cold generated by the refrigerating unit to the surface air cooler of the air conditioning unit through the chilled water for air treatment, and the treated air is sent into the air conditioning room and taken back by the air conditioning unit, the fan, the air valve, the air pipe, the air return inlet and the like, so that the purpose of indoor air conditioning is achieved.
S2: a centralized double-cold-source system based on a water-ground source heat pump and a high-temperature water chilling unit is adopted, the high-temperature cold source in summer is directly supplied by utilizing cold water on the water-ground source side to the maximum extent, the rest is supplied by the high-temperature water chilling unit, the water-ground source heat pump is arranged according to the dehumidification requirement in summer to supply low-temperature chilled water, the water-ground source heat pump is adopted for heating and supplying in winter, the high-temperature cold source in S2 can meet the cooling requirement by adopting cold water at the temperature of 13-19 ℃, the cold water with the temperature requirement provides conditions for the use of a plurality of natural cold sources, such as deep well water, cold water obtained through a soil heat exchanger and the like, and in some dry low regions, the cold water at the temperature of 13-19 ℃ is obtained through a direct evaporation or indirect evaporation mode.
S3: the low-temperature cold source is refrigerated by a conventional surface water/air source heat pump unit, the low-temperature cold source is independently dehumidified in plum rain seasons, and the internal-cooling type double-cold-source fresh air unit needs to be provided with a machine room for installation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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 (4)

1. A time-sharing temperature and humidity separate control method for an air conditioner is characterized by comprising the following steps:
s1: in the refrigerating unit, a refrigerant absorbs heat from the interior of an evaporator for refrigeration, the absorbed heat is condensed in a condenser for heat release, cooling water removes the heat released by the refrigerant in the condenser of the refrigerating unit, the heat taken away by the cooling water from the condenser is directly released to the atmosphere in a cooling tower, a chilled water circulating system continuously sends the cold energy generated by the refrigerating unit to a surface air cooler of an air conditioning unit through the chilled water for air treatment, and the treated air is sent into an air conditioning room and taken back from the air in the room through the air conditioning unit, a fan, an air valve, an air pipe, a return air inlet and the like so as to achieve the purpose of indoor air conditioning;
s2: the centralized double-cold-source system based on the water-ground source heat pump and the high-temperature water chilling unit is adopted, the high-temperature cold source in summer is directly supplied by utilizing cold water on the water-ground source side to the maximum extent, the rest is supplied by the high-temperature water chilling unit, the water-ground source heat pump is arranged according to the dehumidification requirement in summer to supply low-temperature chilled water, and the water-ground source heat pump is adopted for heating and supplying heat in winter;
s3: the low-temperature cold source adopts an internal cooling type low-temperature cold source in the fresh air handling unit, and the low-temperature cold source is adopted for independent dehumidification in plum rain seasons;
s4: adopt dry-type fan coil to dehumidify, the surface cooler designs for accurate adverse current mode, increases the bank of tubes number simultaneously, increases original three calandrias to four calandrias.
2. The time-sharing temperature and humidity separate control method for the air conditioner according to claim 1, characterized in that: the high-temperature cold source in the S2 can meet the cooling requirement by adopting cold water at the temperature of 13-19 ℃, the cold water with the temperature requirement provides conditions for the use of a plurality of natural cold sources, and the cold water at the temperature of 13-19 ℃ is obtained in a drying low region by a direct evaporation or indirect evaporation mode.
3. The time-sharing temperature and humidity separate control method for the air conditioner according to claim 1, characterized in that: the internal-cooling type double-cold-source fresh air unit in the S3 takes away condensation heat by means of indoor exhaust air, an external condensation system or a cooling system is not needed, and the internal-cooling type double-cold-source fresh air unit needs to be installed in a machine room.
4. The time-sharing temperature and humidity separate control method for the air conditioner according to claim 1, characterized in that: in the S4, in the area with a high temperature in summer, the dry type fan coil needs to be provided with a condensate water pan and a condensate water pipe.
CN202210771957.0A 2022-06-30 2022-06-30 Time-sharing temperature and humidity separate control method for air conditioner Pending CN115095945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210771957.0A CN115095945A (en) 2022-06-30 2022-06-30 Time-sharing temperature and humidity separate control method for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210771957.0A CN115095945A (en) 2022-06-30 2022-06-30 Time-sharing temperature and humidity separate control method for air conditioner

Publications (1)

Publication Number Publication Date
CN115095945A true CN115095945A (en) 2022-09-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210771957.0A Pending CN115095945A (en) 2022-06-30 2022-06-30 Time-sharing temperature and humidity separate control method for air conditioner

Country Status (1)

Country Link
CN (1) CN115095945A (en)

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