FI20205580A1 - Method of ice formation protection in refrigeration and ventilation devices - Google Patents

Method of ice formation protection in refrigeration and ventilation devices Download PDF

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Publication number
FI20205580A1
FI20205580A1 FI20205580A FI20205580A FI20205580A1 FI 20205580 A1 FI20205580 A1 FI 20205580A1 FI 20205580 A FI20205580 A FI 20205580A FI 20205580 A FI20205580 A FI 20205580A FI 20205580 A1 FI20205580 A1 FI 20205580A1
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FI
Finland
Prior art keywords
heat
refrigeration
ice formation
heat exchangers
result
Prior art date
Application number
FI20205580A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI129069B (en
Inventor
Kirill Orlov
Original Assignee
Kirill Orlov
Orlova Valeriya
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kirill Orlov, Orlova Valeriya filed Critical Kirill Orlov
Publication of FI20205580A1 publication Critical patent/FI20205580A1/en
Application granted granted Critical
Publication of FI129069B publication Critical patent/FI129069B/en

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Classifications

    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/065—Removing frost by mechanical means
    • 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
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G7/00—Cleaning by vibration or pressure waves
    • 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]
    • Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The present invention relates to means for removing condensation from heat exchangers, namely, refrigerators, ventilation devices, air conditioners, heat pumps, recuperators. The technical problem, the solution of which is provided by the use of the claimed invention, is the lack of technical means and methods for the protection of heat pumps, refrigeration and ventilation systems, which allow to exclude ice formation of heat exchangers without significant energy consumption. The technical result of the claimed invention is to ensure the possibility of preventing the freezing of heat exchangers when the condition for the reduction of electric power consumption to ensure this process is reached. The technical result is achieved by the implementation of the method of mechanical oscillations which prevents ice formation. The result is achieved due to the fact that high-frequency oscillations are fed to the heat exchanger and as a result of their influence icing loses the ability to hold on the surface of the heat removal elements.

Description

METHOD OF ICE FORMATION PROTECTION IN REFRIGERATION AND VENTILATION DEVICES
DISCLOSURE OF THE INVENTION Field of the invention The present invention relates to means for removing condensation from heat exchangers, namely, refrigerators, ventilation devices, air conditioners, heat pumps, recuperators. Technical level During the operation of refrigeration, ventilation systems, air conditioners, heat pumps, recuperators, the air is cooled when it is passing through heat exchangers, moisture vapor condenses on the cooled surfaces and heat transfer parts, turning into ice crystals. Currently, such methods are known to combat the formation of ice as additional heating of the air, the transition of plants from cooling to defrosting mode, preparation of air by the method of drying. All existing technologies are aimed at preventing ice and therefore require significant energy costs to maintain the trouble-free operation of the heat exchanger. Their efficiency is reduced in proportion to the reduction in outdoor air temperature and humidity. The state of the art is known as "Method for Removal of Condensate from a Condensate Heat Exchanger with Hydrophilic Material and Device for its Implementation" (Patent No. 2183799, Application dated August 20, 2000, brought into force on June 20, 2012, patent holder: Rocket Space Corporation "Energy" S named after Korolev S.P. Open Joint Stock Company). N The invention relates to space technology, specifically to methods of S 25 removing condensate from the heat exchangers of air conditioning systems of the S inhabited compartments of spacecrafts of various application. In addition, the E invention can be used in surface air conditioning systems serving rooms 3 particularly sensitive to drip moisture. The disadvantage of this technical solution 3 is the complexity of its implementation and its focus on application in zero gravity O 30 conditions. "Condensate catcher" is also known from the state of the art (Patent No. 75018, applications dated February 20, 2008, brought into force on July 20, 2008).
The useful model refers to the field of thermal power engineering, more specifically to condensate catchers, which are part of heat exchangers that use water vapour as a heat transfer medium. The above mentioned technical solution represents a condensate catcher consisting of a condensate collector connected to the pipes of the heat exchanger and a device for removal of condensate from the condensate collector, which is distinguished by the fact that the condensate catcher is equipped with a pipe or a tube for removal of condensate from the condensate catcher, the inlet opening of the pipe or tube is located at a level that ensures that during the removal of condensate it is immersed in the liquid, mainly condensate, with the connection point between the condensate collector and the heat exchanger pipes located at the top of the condensate collector above the surface of the accumulated condensate.
The disadvantage of this technical solution is that it is aimed at removing condensate at a positive air temperature, so the function of condensate removal is not fulfilled when the temperature drops.
To avoid condensation, foam-insulated heating elements mounted on at least one side wall and/or on the device door frame are also used. The disadvantage of heating elements, such as electric heaters, is relatively high energy consumption. It is known to use heating elements in the form of foam- insulated pipelines through which the compressed refrigerant flows. The compressed refrigerant generates excess heat generated in the refrigerant circuit of the device, which heats the corresponding surface and prevents unwanted condensation.
S The disadvantage of such heating elements is that refrigerant pipelines are N 25 expensive and very difficult to produce. On the outer surface pressure-sensitive S areas may occur. Additional disadvantages are the relatively high power & consumption, and therefore high energy costs, the possibility of local overheating = and, under certain circumstances, the effect on the temperature inside the device. 3 Thus, all currently existing technical solutions in this area are aimed at 3 30 heating the heat exchangers that are part of the refrigeration and ventilation O systems.
Conseguently, the technical problem, the solution of which is provided by the use of the claimed invention, is the lack of technical means and methods for the protection of refrigeration and ventilation systems, which allow to exclude ice formation of heat exchangers without significant energy consumption. Disclosure of invention The claimed invention is proposed in order to solve the above problem and, consequently, the technical task of the present invention is to expand the arsenal of technical means to protect refrigeration and ventilation systems against ice formation without significant expenditure of electricity.
The technical result of the claimed invention is to ensure the possibility of preventing the freezing of heat exchangers when the condition for the reduction of electric power consumption to ensure this process is reached.
The technical result is achieved by the implementation of the method of mechanical oscillations which prevents ice formation. The result is achieved due to the fact that high-frequency oscillations are fed to the heat exchanger and as a result of their influence icing loses the ability to hold on the surface of the heat removal elements.
The following elements are required to ensure that ice is removed in the specified manner: a frequency generator, frequency transmitter, microcontroller, temperature and humidity sensors.
These elements are connected to each other in such a way that sensors and a frequency generator are connected to the microcontroller, the frequency transmitters are connected to the frequency generator. The emitted frequencies, in turn, are installed on heat exchangers.
o In order to achieve this technical result, the temperature and humidity O 25 sensors take readings of the air condition and send them to a microcontroller, which O in turn commands the freguency generator to generate the operating freguency 0 and force for the frequency transmitter. The frequency transmitter converts the I electrical signal into mechanical vibration, which destroys the ice layer formed.
- During the operation of the freguency transmitter, due to the difference in LO 30 density of the heat exchanger material and ice crystals, the ice crystals peel off N (reject) the heat transfer surfaces of the heat exchanger.
N Depending on the materials used for the manufacture of heat exchangers, as well as its design and shape, the emitter of frequency vibrations and the mutual arrangement of elements are selected. The control equipment is selected on a case-by-case basis, depending on the selected frequency vibration transmitter.
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Claims (1)

1. The method of protection against frostbite of refrigeration and ventilation installations, which differs in that includes receiving data of air condition by 5 readings temperature and humidity sensors, transmission of these readings to the microcontroller, the microcontroller sends a command to the generator of frequencies to produce the working frequency and force of impact for the frequency emitter, conversion by the emitter of the frequencies of electrical signals into mechanical vibration.
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FI20205580A 2019-06-19 2020-06-03 Method of ice formation protection in refrigeration and ventilation devices FI129069B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2019119135A RU2724661C1 (en) 2019-06-19 2019-06-19 Method for protection against icing refrigerating and ventilation plants

Publications (2)

Publication Number Publication Date
FI20205580A1 true FI20205580A1 (en) 2020-12-20
FI129069B FI129069B (en) 2021-06-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
FI20205580A FI129069B (en) 2019-06-19 2020-06-03 Method of ice formation protection in refrigeration and ventilation devices

Country Status (3)

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FI (1) FI129069B (en)
RU (1) RU2724661C1 (en)
WO (1) WO2020256587A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3208323B2 (en) * 1996-04-30 2001-09-10 三洋電機株式会社 Control method of multi-type air conditioner
DE10254109B4 (en) * 2002-11-20 2013-04-11 Bayerische Motoren Werke Aktiengesellschaft Combined cooling and heating device with a shared gas cooler, in particular for a motor vehicle
FR2922522B1 (en) * 2007-10-22 2010-04-16 Aircelle Sa PIEZOELECTRIC DEFROSTING OF AN AIR INPUT
US9327839B2 (en) * 2011-08-05 2016-05-03 General Atomics Method and apparatus for inhibiting formation of and/or removing ice from aircraft components
CN104868426B (en) * 2015-04-14 2017-03-22 国家电网公司 Power supply cable de-icing device and power supply cable de-icing method
KR20170022485A (en) * 2015-08-20 2017-03-02 대우조선해양 주식회사 Blade with de-icing device

Also Published As

Publication number Publication date
FI129069B (en) 2021-06-15
RU2724661C1 (en) 2020-06-25
WO2020256587A1 (en) 2020-12-24

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