NO20161141A1 - Device for heating and cooling in particular for hot water central heating - Google Patents

Device for heating and cooling in particular for hot water central heating Download PDF

Info

Publication number
NO20161141A1
NO20161141A1 NO20161141A NO20161141A NO20161141A1 NO 20161141 A1 NO20161141 A1 NO 20161141A1 NO 20161141 A NO20161141 A NO 20161141A NO 20161141 A NO20161141 A NO 20161141A NO 20161141 A1 NO20161141 A1 NO 20161141A1
Authority
NO
Norway
Prior art keywords
tubes
heat exchanger
heating
thatthe
piping
Prior art date
Application number
NO20161141A
Inventor
Tomáš Szolony
Ondřej Šikula
Original Assignee
Tomton S R O
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
Priority claimed from CZ2013-28921U external-priority patent/CZ26765U1/en
Priority claimed from CZ2013-995A external-priority patent/CZ2013995A3/en
Application filed by Tomton S R O filed Critical Tomton S R O
Publication of NO20161141A1 publication Critical patent/NO20161141A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/08—Arrangements for drainage, venting or aerating
    • F24D19/082—Arrangements for drainage, venting or aerating for water heating systems
    • F24D19/083—Venting arrangements
    • F24D19/085—Arrangement of venting valves for central heating radiators
    • F24D19/087—Arrangement of venting valves for central heating radiators automatic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/008—Details related to central heating radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/008—Details related to central heating radiators
    • F24D19/0087—Fan arrangements for forced convection
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H3/00—Air heaters
    • F24H3/002—Air heaters using electric energy supply
    • F24H3/004—Air heaters using electric energy supply with a closed circuit for a heat transfer liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
    • F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
    • F24H7/0408—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply
    • F24H7/0416—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply the transfer fluid being air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/0233—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels
    • F28D1/024—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with air flow channels with an air driving element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2210/00—Heat exchange conduits
    • F28F2210/10—Particular layout, e.g. for uniform temperature distribution
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Description

Device for heating and cooling in particular for hot water central heating
Technical field
The invention refers to a device for heating and cooling, in particular for hot water central heating. The device is suitable for use in habitable rooms, where accent is put on efficient and aesthetical heat and cooling sources.
Existing state of engineering
Heat sources in particular central heating bodies have been made from steel sheets, which are circumferentially welded. Their disadvantage is low efficiency, respectively large dimensions required to transfer an additional amount of heat. Heat sources fabricated of iron casting are also known, however those are heavy and inefficient.
Subject matter of the invention
The above mentioned disadvantages have been removed to a great extend by device for heating and cooling, in particular for hot water central heating, according to this invention, which subject matter lies in the fact that it consists of at least one heat exchanger which is provided with a housing. Hereat the heat exchanger consists of at least one row of tubes situated towards the horizon at an angle a not greater than 65°. Each row of tubes consists of at least two tubes with aerodynamic profile formed at least in principle as a rectangle or in principle as an oval where the longer axis length in a cross section is at least two times greater than the length of the shorter axis b. The distance h between at least some tubes is not greater than 13 mm. The heat exchanger is at least on one side finished with collecting space, into which at least some tubes discharge and which is provided with supply piping and / or discharge piping.
The subject matter of the invention is also that the heat exchanger is made from material containing copper. Furthermore, it is essential that the heat exchanger is made from material containing aluminium. It is also essential that at least a part of a metal bellows is situated among some rows of tubes. It is also essential that that the supply piping and / or discharge piping is provided with a regulating element. Furthermore, it is essential that at least one electric fan is mounted above and / or below the heat exchanger. Finally, it is essential that the electric fan is equipped with a controller for speed control.
Explanation of particular definitions used in this technical solution:
Device for heating and cooling, ......... is such a device that transfers heat from the space in which the device is located, or it takes heat into this area. Heat transfer is accomplished using a liquid which passes through this device.
The tubes with aerodynamic profile formed in principle as a rectangle or in principle as an oval where the longer axis length in a cross section is at least two times greater than the length of the shorter axis in it ................. are such tubes, where their section is in a preferred shape from aerodynamic point of view, when air flows towards the tube and there is an effort to make the aerodynamic resistance toward the air flo w small. The ideal solution is an aero dynamical teardrop section of the tube. However, an oval shape, which is easier to manufacture, where the longer axis length in a cross section is at least two times greater than the length of the shorter axis in the cross section, is also admitted. A rectangular section of the tube is also allowed in principle, but it has to be only such a rectangle in which the length of its longer axis is at least two times greater than the length of its shorter axis.
Metal bellows is a metallic, thermally conductive element with a large surface that touches the tubes and thus transfers heat flowing in the tubes to its surface, which is substantially larger than the surface of the tubes. This ensures a better heat transfer from the fluid flowing in the tubes to the air.
Brief description of drawings
Figure 1 schematically shows a heat exchanger, which has a collecting space on each side, to which the tubes discharge. Feed piping and discharge piping with a regulating element are connected to the collecting space. The heat exchanger is provided with tubes situated towards the horizon at an angle a of 40°. Figure 2 schematically shows a heat exchanger with a row of four tubes, which is provided with feed piping and discharge piping, in which the tubes are located toward the horizon at an angle a of 0°. A fan with regulating element is also evident. Figure 3 shows a cross section of the tube with aero dynamical profile, which is formed by an oval, where the longer axis length in a cross section is at least two times greater than the length of its shorter axis b. Figure 4 is a cross section of a heat exchanger with four rows of tubes, each row also consists of four tubes. The figure shows the distance h among the tubes. Two parts of the metal bellows are situated among some rows of tubes.
Figure 5 schematically shows a heat exchanger provided with a housing.
Examples of implementation of the invention
It was determinate to implement a hot water central heating with gas boiler with an output of 40 kW and five central heating bodies, each with an output of about 12 kW in a house. It is required to provide individual rooms with small yet powerful central heating bodies, which are able to transfer the duty of a boiler into individual rooms. For the implementation of each of the five central heating bodies is used a heat exchanger 1 consisting of four rows of tubes 3 situated towards the horizon at an angle a = 35°. The length of each tube 3 is 720 mm. Each row of tubes 3 consists of eight tubes 3 with an aero dynamical profile formed by a rectangle with rounded corners. The length of the longer axis of the tube 3 is 20 mm and the length of the shorter axis of the tube 3 is 8 mm.
The distance h between the lower row of tubes 3 and the row of tubes 3 situated above it is 10 mm. The distance h among the other rows of tubes 3 is h = 22 mm. All materials used are made of brass. The heat exchanger i is finished on both sides with a collecting space 4, in which the individual tubes 3 discharge. A metal bellows 6 is inserted between the second and third row of tubes 3. The collecting space 4 is provided with a feed piping 5 as well as discharge piping 5. All piping 5 is from copper. The discharge piping 5 is provided with a regulating element 7. Two axial electric fans 8, each provided with a regulator 9^ are mounted below the heat exchanger L Such an exchanger is provided with a housing 2, which has an aesthetical design.
Industrial application
The invention can be used when implementing the hot water central heating systems. However, it is also suitable for use in cooling units.

Claims (7)

1. Device for heating and cooling in particular for hot water central heatingcharacterized inthat it consists of at least one heat exchanger (1) provided with a housing (2), whereas the heat exchanger (1) consists of at least one row of tubes (3) situated towards the horizon at an angle a not greater than 65°, whereas each raw of tubes (3) consists of at least two tubes (3) with aerodynamic profile formed at least in principle as a rectangle or in principle as an oval where the longer axis length in a cross section is at least two times greater than the length of its shorter axis b, hereat the distance h between at least some tubes (3) is not greater than 13 mm, hereat the heat exchanger (1) is at least on one side finished with collecting space (4), into which at least some tubes (3) discharge and which is provided with supply piping (5) and/or discharge piping (5).
2. Device according to claim 1characterized in thatthe heat exchanger (1) is made from material containing copper.
3. Device according to claim 1characterized in thatthe heat exchanger (1) is made from material containing aluminium.
4. Device according to one of the preceding claimscharacterized in thatat least a part of a metal bellows (6) is situated among some number of tubes (3).
5. Device according to one of the preceding claimscharacterized in thatthe supply piping (5) and / or discharge piping (5) is provided with a regulating element (7).
6. Device according to one of the preceding claimscharacterized in thatat least one electric fan (8) is mounted above and / or below the heat exchanger (1).
7. Device according to claim 6characterized in thatthe electric fan (8) is equipped with a regulator (9) for speed control.
NO20161141A 2013-12-12 2016-07-08 Device for heating and cooling in particular for hot water central heating NO20161141A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CZ2013-28921U CZ26765U1 (en) 2013-12-12 2013-12-12 System for heating and cooling, particularly for hot water central heating
CZ2013-995A CZ2013995A3 (en) 2013-12-12 2013-12-12 Heating and cooling system, particularly for hot water central heating installation
PCT/CZ2014/000149 WO2015085975A2 (en) 2013-12-12 2014-12-08 Device for heating and cooling in particular for hot water central heating

Publications (1)

Publication Number Publication Date
NO20161141A1 true NO20161141A1 (en) 2016-07-08

Family

ID=52577576

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20161141A NO20161141A1 (en) 2013-12-12 2016-07-08 Device for heating and cooling in particular for hot water central heating

Country Status (10)

Country Link
AT (1) AT15165U1 (en)
DE (1) DE212014000228U1 (en)
DK (1) DK201600077Y3 (en)
FI (1) FI11354U1 (en)
GB (1) GB2536165A (en)
NO (1) NO20161141A1 (en)
PL (1) PL70118Y1 (en)
RU (1) RU181093U1 (en)
SK (1) SK7855Y1 (en)
WO (1) WO2015085975A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69613944T2 (en) * 1995-11-21 2002-01-10 E L M Leblanc Drancy Meandering, combined heat exchanger with a complex, straight section
EP1462748A1 (en) * 2003-03-24 2004-09-29 Jaga, naamloze vennootschap Improved radiator
US20050098307A1 (en) * 2003-06-11 2005-05-12 Usui Kokusai Sangyo Kaisha Limited Gas cooling device
DE102010033468A1 (en) * 2010-08-05 2012-02-09 GEA MASCHINENKüHLTECHNIK GMBH Heat exchanger has ribs in fluid pipes that are comprised with rib combs between rib edges, such that rib combs of adjacent pipes are arranged alternately and rib edges are provided at right angle to longitudinal axis of pipes

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1896413A (en) * 1929-06-20 1933-02-07 Modine Mfg Co Heating device
DE2215651A1 (en) * 1972-03-30 1973-10-11 Alwa Gmbh ELECTRIC STORAGE HEATER AND PROCEDURE FOR ITS OPERATION
RU2272232C1 (en) * 2004-07-05 2006-03-20 Государственное образовательное учреждение высшего профессионального образования "Российский университет дружбы народов" (РУДН) Heat exchanger

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69613944T2 (en) * 1995-11-21 2002-01-10 E L M Leblanc Drancy Meandering, combined heat exchanger with a complex, straight section
EP1462748A1 (en) * 2003-03-24 2004-09-29 Jaga, naamloze vennootschap Improved radiator
US20050098307A1 (en) * 2003-06-11 2005-05-12 Usui Kokusai Sangyo Kaisha Limited Gas cooling device
DE102010033468A1 (en) * 2010-08-05 2012-02-09 GEA MASCHINENKüHLTECHNIK GMBH Heat exchanger has ribs in fluid pipes that are comprised with rib combs between rib edges, such that rib combs of adjacent pipes are arranged alternately and rib edges are provided at right angle to longitudinal axis of pipes

Also Published As

Publication number Publication date
GB2536165A (en) 2016-09-07
DK201600077U1 (en) 2016-07-08
AT15165U1 (en) 2017-01-15
RU181093U1 (en) 2018-07-04
DK201600077Y3 (en) 2016-08-12
SK500492016U1 (en) 2017-02-02
PL70118Y1 (en) 2018-07-31
SK7855Y1 (en) 2017-08-02
DE212014000228U1 (en) 2016-08-29
PL125114U1 (en) 2017-01-30
FI11354U1 (en) 2016-08-26
GB201611069D0 (en) 2016-08-10
WO2015085975A3 (en) 2015-08-06
WO2015085975A2 (en) 2015-06-18

Similar Documents

Publication Publication Date Title
JP2017040389A5 (en)
CN103776163A (en) Heat pump water heater
RU2016116933A (en) PIPE FOR HEAT EXCHANGER WITH, AT LEAST, PARTIALLY VARIABLE CROSS-SECTION AND HEAT EXCHANGER EQUIPPED WITH IT
NO20161141A1 (en) Device for heating and cooling in particular for hot water central heating
CN104180564A (en) Air conditioner and heat exchanger thereof
Hota et al. Effect of geometric configuration and back plate addition in minichannel solar collectors
CZ2013995A3 (en) Heating and cooling system, particularly for hot water central heating installation
CN104092130A (en) Temperature self-regulated power transformation cabinet
CN205156658U (en) Titanium condenser
CZ26765U1 (en) System for heating and cooling, particularly for hot water central heating
CN104515222A (en) Secondary auxiliary thermal engineering earth-energy central air conditioner
CN204630074U (en) Efficient electric heater
CN207751379U (en) A kind of heat exchanger fin
CN204115304U (en) Micro-channel heat exchanger
CN104208893A (en) Temperature control system of esterification and separation column
CN204514131U (en) A kind of high-performance heat exchanger
CN203040102U (en) Improved tubular radiator for electronic device
CN203051993U (en) Composite steel pipe for circulating water, heat supply and ventilation
PH12018500588A1 (en) Double plated heat exchange
CN202485523U (en) Direct air-cooling condenser fin
Xia et al. Numerical Simulation on Heat Pipe Heat Exchanger: Effects of Different Wind Speeds
CN204830938U (en) Radiator
CN204977419U (en) Heating device
CN204757459U (en) Heat exchanger and floor standing air conditioner ware of floor standing air conditioner ware
CN203478420U (en) Novel heating radiator

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application