WO2003002915A1 - Arrangement dans un systeme de chauffage ou de refroidissement - Google Patents

Arrangement dans un systeme de chauffage ou de refroidissement Download PDF

Info

Publication number
WO2003002915A1
WO2003002915A1 PCT/SE2002/001288 SE0201288W WO03002915A1 WO 2003002915 A1 WO2003002915 A1 WO 2003002915A1 SE 0201288 W SE0201288 W SE 0201288W WO 03002915 A1 WO03002915 A1 WO 03002915A1
Authority
WO
WIPO (PCT)
Prior art keywords
tank
connection
water
volume
gas
Prior art date
Application number
PCT/SE2002/001288
Other languages
English (en)
Original Assignee
Andersson, Ola
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 Andersson, Ola filed Critical Andersson, Ola
Publication of WO2003002915A1 publication Critical patent/WO2003002915A1/fr

Links

Classifications

    • 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
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • 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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0015—Domestic hot-water supply systems using solar energy
    • F24D17/0021—Domestic hot-water supply systems using solar energy with accumulation of the heated water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the present invention refers to a heating- or cooling system, preferably for buildings, having a mainly pressure-free tank, which preferably serves as an accumulator tank, containing a volume of liquid, preferably heated water, and a volume of gas, preferably nitrogen, where the tank is directly or indirectly connected to an expansion bellows, which is capable of taking up changes in volume, at which a small pressure exists in the volume of gas in the tank included in the system.
  • a mainly pressure-free tank which preferably serves as an accumulator tank, containing a volume of liquid, preferably heated water, and a volume of gas, preferably nitrogen, where the tank is directly or indirectly connected to an expansion bellows, which is capable of taking up changes in volume, at which a small pressure exists in the volume of gas in the tank included in the system.
  • Another way of extending the lifetime of the system is to prevent oxidizing of the water by enclosing it, so that no oxygen is able to force it's way into the water, at which the system is periodically exposed to large amounts of pressure, which results in thick and high quality materials, which are resistant to this pressure, must be used in the system, which implies expensive and technically advanced designs in the form of special safety valves, pressure vessels, expansion vessels etc. must be used.
  • This type of heating system furthermore becomes susceptible to leakage, other damages and to the risk of explosion.
  • the tank- is being used as an accumulator tank and must be carried out in strong metal-sheet and in a special design with belonging expansion vessel. Ordinary heating systems normally does not contain air.
  • An object with the present invention is to eliminate the disadvantages in question in the abovementioned designs by providing the system with an expansion bellows, so that changes in the volume in the tank can be consumed by said expansion bellows without the pressure in the tank included in the system increases or just increases marginally.
  • the expansion bellows is connected by a first connection directly to the tank or by a second connection indirectly to the tank, which then is connected somewhere to the system itself.
  • the expansion bellows is then capable of accumulating the changes in pressure and volume which occurs when the liquid and/or gas volume changes in the tank.
  • the volume of gas consists of mainly nitrogen' and the volume of liquid consists of water.
  • the volume of liquid and gas along with the pressure of liquid and gas changes in the ' tank when temperature and atmospheric pressure variations emerge and when variations of the amount of liquid in the tank occurs.
  • the pressure in the tank increases, the pressure levels out, at which the pressure variations is accumulated by the expansion bellows. Since the bellows is volume accumulating, it can accumulate ' the increase of pressure and/or volume at the same time as it expands and accumulate the decrease in pressure and/or volume as it contracts, at which a constant low pressure is created in the tank and in the system.
  • the tank is equipped with a volume accumulating expansion bellow, placed near the tank through the first connection at the upper part of the tank.
  • the expansion bellows can be designed preferably of butyl rubber. Though, different materials such as rubber, plastic, -wood, metal or combinations of these can be used showing different shapes such as e.g.
  • the tank may also be complemented with a second connection, which is connected to a . valve and a safety valve, which opens and closes at the discharge and filling up of gas. Thanks to the placement of the expansion bellows outside the tank, the back pressure in it doesn't increase very much, when the tank is mainly filled with liquid and/or gas when the temperature of the liquid is high, at which the pressure in the tank is constantly low. Furthermore, to reduce the risk of the oxygen being exposed to the volume of nitrogen in the tank and to reduce the risk of condensation and water being transported into the expansion bellows, a water seal may be applied to the upper connection.
  • a safety connection may also be connected to the volume of liquid in the tank at a level not exceeding 0.3 m from the upper part of the tank.
  • This safety connection creates a water seal with a back pressure.
  • This back pressure can in some cases be at maximum 0.03 bar, at which a possible excess pressure may pass out through this connection with no chance of the outer air to force its way in.
  • This safety connection may also be used as a level control.
  • the expansion bellows may, according to the invention, be placed anywhere inside a building, which means available spaces may be utilized at a maximum and the expansionsbalg being easily accessible for maintenance.
  • the tank may be designed in an arbitrary shape, when it does not have to be designed in such a firm way with a statically demanding design, since the system is working under low pressure, at which the tank is not exposed to any greater stresses. Therefore, you can use small spaces, such as a open foundation under buildings for the placement of the tank. If an excess pressure in the tank is preferred, the expansion bellows may be exposed to a weight or some other force, at which the excess pressure in the tank becomes the same no matter how large the volume of liquid and/or gas in it is. You may also use old second-hand oil storage tanks as tank for the system according to the. invention, which saves a lot of money and usage of available resources.
  • the invention may also be used for district heating plants with- large tanks, apartment blocks and also small weekend cottages.
  • the invention may as well be applied through simple cheap solutions without circulation pumps, at which the system becomes gravity circulating.
  • the system can be used for production of new buildings and also for already existing tanks e.g. in arrangements with open expansion vessels, which then are replaced or complemented with the expansion bellows according to the invention.
  • the main advantages with the invention are that you have an accumulator tank for a system which is cheap, easy to handle and install and which can be suitable for small and large buildings and heating plants and which is flexible, since it may be placed in cramped spaces.
  • the system according to the invention itself checks whether a leak has come up in the system.
  • expansion bellows collapses by contracting itself completely.
  • the expansion bellows can be manufactured and held in stock in different standard sizes, therefore it does not have to be tailor-made for each system, making it possible to manufacture at a reasonable cost.
  • fig. 1 shows a schematic perspective view of a tank partly in section having an expansion bellows according to the invention
  • fig. 2 shows a schematic perspective view of an upper part of a tank partly in section having a water seal
  • fig. 3 shows a schematic perspective view of an upper part of a tank partly in section having a cooling coil
  • fig. 4 shows a schematic perspective view of an alternative design of the invention partly in section
  • fig. 5 shows in subfigures a-e outline perspective views of different shapes of an expansion bellows .
  • fig. 6 shows in subfigures f-i outline side-views of different shapes of an expansion bellows containing a small and large amount of gas respectively
  • fig. 7 ,8 show alternative solutions of safety valves on the tank in the form of water seals
  • fig. 9 shows a safety device at the expansion bellows, which is triggered off at too large pressure
  • fig. 10 shows an alternative design of the connection to the expansion bellows
  • fig. 11 shows an alternative design of the system according- to the invention with belonging solar collector and
  • fig. 12 shows an alternative connection of a solar collector to the system according to the invention.
  • a heating- or cooling system 1 consisting of a tank 2, which in the presented example serves as an accumulator tank containing a volume of gas 3 'in its upper part 4 and a volume of liquid 5 in its lower part 6.
  • the volume of liquid 5 varies in volume depending on how much liquid, preferably water, which at the moment is in the system 1 and how hot the water is.
  • the upper part 4 of the tank 2 is connected to an expansion bellows 7 via a first connection 8, at which the volume of gas 3, preferably nitrogen, can respectively increase and decrease in volume in said expansion bellows 7.
  • a second connection 14 is connected to the first connection 8 and equipped with a valve 15 for filling up water and/or gas and a safety valve 16, which opens if the pressure becomes too high.
  • a safety connection 17 connects to the tank 2 at a distance of maximum 0.3 m below the upper part 12 of the tank. This constitutes a level control and also prevents excess pressure from appearing in the tank 2.
  • the upper part of the safety connection 17 is at the same level as the upper part 12 of the tank 2.
  • the volume of liquid 5 emits energy to the system 1 by allowing the water to circulate the system 1 to the radiators.
  • the volume of liquid 5 may pass directly out through the outlet 18 and return through the inlet 19 without utilizing the pipe 20, at which the volume of water 5 circulates the radiators.
  • condensation water still remains in the first connection 8, it may be collected in a point 25 where the first connection proves to have a bend upwards towards the expansion bellows 7, at which the condensation water flows down to point 25, where it later may evaporate. Since the first connection 8 may be designed in a way that it on at least one point is in contact with or close to the tank 2, heating occurs, which makes the evaporation of the condensation water easier.
  • expansion bellows 7 may show.
  • Each subfigure also proves to have the first connection 8.
  • you may according to the invention combine these different shapes in one single expansion bellows 7.
  • other shapes than these may also exist for the application of the invention, e.g. in the shape of a gas dome.
  • subfigure f/ shows how an oval-shaped or a spherical expansion bellows 7 can look like when its volume of gas 3 is small.
  • Subfigure g/ shows a concertina formed bellows in the same situation.
  • subfigure h/ a bellow formed bellows and in i/ a cylindrical bellows in the same situation .
  • the tank 2 has instead of mechanical valves been equipped with a water seal 28, which is connected to the upper, gas-filled part of the tank 2 and prevents excess pressure from appear in the tank 2.
  • the height of the water seal 28 determines the maximum excess pressure or under-pressure .
  • the liquid-filled part of the water seal may be connected to the tank 2 with a small pipe 29 for automatic fill up, so that it won't dry out.
  • Fig. 9 shows a stretched band 30 around the balg 7 which is fixed at one end and connected to a trigger device 32 with its second, open end 31, at which when exceeding a pre-defined pressure in the bellows 7 opens a valve 33 when the device 32 is pulled out.
  • the bellows 7 may have a weakening, which breaks at a pre-defined, small excess pressure.
  • the expansion bellows 7 shows at its connection 8 a perforated spacer 34, which lets the gas through when the bellows 7 is almost empty. Due to this the gas may pass out through the side-walls of the spacer 34 and then the side-walls of the rubber sheet cannot cover the opening to the connection 8.
  • Fig. 11 and 12 shows a, through connection 43, 44, directly connected to the tank 2, solar collector 35, which at its operation is filled with oxygen- free water from the tank, having a distance of change in volume 45 and is brought circulating by the pump 41 through the pipes 38 and 39.
  • a perforated spacer 34 which lets the gas through when the bellows 7 is almost empty. Due to this the gas may pass out through the side-walls of the spacer 34 and then the side-walls of the rubber sheet cannot cover the opening to the connection 8.
  • Fig. 11 and 12 shows a, through connection 43, 44, directly connected to the tank 2, solar collector 35, which at its operation is filled with oxygen- free water from the tank, having a distance of change in
  • the solar collector 35 is filled with gas and when the sun emits energy, the pump 41 starts the circulation to the solar collector from the tank 2 via a control equipment, not shown in the drawings, and the solar collector is now in operation.
  • the control equipment shuts off the pump 41 and the solar collector 35 is emptied of water and the nitrogen flows up to it from the expansion bellows 7 and the solar collector again is at rest.
  • connection 42 for draining with or without valves or a valve- control may be fitted at a suitable point on the pipes 38,39 from the solar collector 35.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

L'invention concerne un système de chauffage et de refroidissement (1) comprenant un réservoir fermé (2) fonctionnant comme accumulateur contenant un volume de liquide (5), de préférence de l'eau, et un volume de gaz (3), de préférence de l'azote, ce réservoir (2) étant conçu afin de restituer de l'énergie pour chauffer ou refroidir de préférence une construction, ou de l'eau stockée, ou tout autre liquide, tout en empêchant l'arrivée d'air. Un vase d'expansion (7), disposé de façon à communiquer avec le volume de gaz (3) du réservoir (2), est connecté directement ou indirectement, via au moins une connexion (8), à la partie supérieure (4) du réservoir (2) de façon à prendre en charge des changements de volume et/ou de pression du volume de liquide (5) et/ou de volume de gaz (3) du réservoir (2) empêchant en même temps l'entrée d'air et l'oxygénation de l'eau dans le réservoir, une pression faible constante pouvant être maintenue dans le système (1) quelle que soit la variation des volumes et des pressions d'eau et de gaz.
PCT/SE2002/001288 2001-06-27 2002-06-27 Arrangement dans un systeme de chauffage ou de refroidissement WO2003002915A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0102268A SE0102268L (sv) 2001-06-27 2001-06-27 Anordning vid ett uppvärmningssystem innefattande en expansionsbälg
SE0102268-0 2001-06-27

Publications (1)

Publication Number Publication Date
WO2003002915A1 true WO2003002915A1 (fr) 2003-01-09

Family

ID=20284619

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2002/001288 WO2003002915A1 (fr) 2001-06-27 2002-06-27 Arrangement dans un systeme de chauffage ou de refroidissement

Country Status (2)

Country Link
SE (1) SE0102268L (fr)
WO (1) WO2003002915A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013026379A1 (fr) * 2011-08-22 2013-02-28 北京佩尔优科技有限公司 Dispositif de stockage d'énergie d'eau à pression normale et procédé de stockage d'énergie associé
WO2016207000A1 (fr) * 2015-06-23 2016-12-29 Mohamed Mansour Ali Accumulateur d'énergie thermique
CN117647615A (zh) * 2024-01-30 2024-03-05 新乡市雨轩清真食品股份有限公司 一种牛羊肉新鲜度检测设备及检测方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2344063B1 (de) * 1973-08-31 1975-01-16 Moriz Dipl-Ing Dipl-Ing Goetz Ausdehnungseinrichtung fuer eine geschlossene Heizungsanlage,insbesondere fuer eine Warmwasserheizungsanlage
GB1460103A (en) * 1973-05-16 1976-12-31 Flamco Bv Method of absorbing the changes in volume of a liquid medium in a central heating system and apparatus for carrying out the method
NO138891B (no) * 1974-04-17 1978-08-21 Anton Eder Trykkutligningsinnretning for oppvarmingsanlegg
DE2757934A1 (de) * 1977-12-24 1979-06-28 Heinrich Ing Grad Brockerhoff Heizkesselanlage mit waermespeicher
CH648105A5 (en) * 1980-03-05 1985-02-28 Stuecklin & Cie Ag Diaphragm-type expansion tank, especially for heating systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1460103A (en) * 1973-05-16 1976-12-31 Flamco Bv Method of absorbing the changes in volume of a liquid medium in a central heating system and apparatus for carrying out the method
DE2344063B1 (de) * 1973-08-31 1975-01-16 Moriz Dipl-Ing Dipl-Ing Goetz Ausdehnungseinrichtung fuer eine geschlossene Heizungsanlage,insbesondere fuer eine Warmwasserheizungsanlage
NO138891B (no) * 1974-04-17 1978-08-21 Anton Eder Trykkutligningsinnretning for oppvarmingsanlegg
DE2757934A1 (de) * 1977-12-24 1979-06-28 Heinrich Ing Grad Brockerhoff Heizkesselanlage mit waermespeicher
CH648105A5 (en) * 1980-03-05 1985-02-28 Stuecklin & Cie Ag Diaphragm-type expansion tank, especially for heating systems

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013026379A1 (fr) * 2011-08-22 2013-02-28 北京佩尔优科技有限公司 Dispositif de stockage d'énergie d'eau à pression normale et procédé de stockage d'énergie associé
WO2016207000A1 (fr) * 2015-06-23 2016-12-29 Mohamed Mansour Ali Accumulateur d'énergie thermique
CN107923656A (zh) * 2015-06-23 2018-04-17 曼苏尔·阿里·穆罕默德 热能蓄能器
CN117647615A (zh) * 2024-01-30 2024-03-05 新乡市雨轩清真食品股份有限公司 一种牛羊肉新鲜度检测设备及检测方法
CN117647615B (zh) * 2024-01-30 2024-05-03 新乡市雨轩清真食品股份有限公司 一种牛羊肉新鲜度检测设备及检测方法

Also Published As

Publication number Publication date
SE0102268L (sv) 2002-12-28
SE0102268D0 (sv) 2001-06-27

Similar Documents

Publication Publication Date Title
US4269167A (en) Closed pressurized solar heating system with automatic valveless solar collector drain-back
EP2212563B1 (fr) Pompe autoalimentée pour liquide chauffé, réservoir de chauffage et de stockage de fluide et système de chauffage de fluide les utilisant
JP5612096B2 (ja) 加熱される液体のための自立型ポンプ、およびこれを用いた熱駆動式の液体閉ループ自動循環システム
EP2284448A2 (fr) Pompe de purge de condensât pour conditionneur d'air
US11802738B2 (en) Water cooling system
WO2003002915A1 (fr) Arrangement dans un systeme de chauffage ou de refroidissement
EP2652415A1 (fr) Chauffe-eau
US20070186873A1 (en) Pressure control isolation and flood preventative tank for a hot water based heating system
SK4342001A3 (en) Method for operating a closed hot-water installation and apparatus to be used therewith
CA2223271C (fr) Controle de dilatation dans un systeme de circulation de fluide ferme
GB2156056A (en) Central heating system
WO1982003677A1 (fr) Systeme de chauffage solaire d'eau d'un reservoir a double paroi a drain de retour hermetique
US4438758A (en) Solar heating unit and heat transfer apparatus
EP1684019A1 (fr) Réservoir de confinement de fluides
US5456409A (en) Method and device for maintaining a fluid at a working pressure in a substantially closed fluid circulation system
GB1583857A (en) Two phase thermo-syphon apparatus
US5662459A (en) Pressurized gas driven liquid pump having the outlet pipe connected to a variable buoyant float
FI69672B (fi) Distributionssystem foer bruksvatten
RU2531717C1 (ru) Расширительный бак для газового водонагревателя
US20240044517A1 (en) Expansion assembly and hot water tank
US5964215A (en) Heating installation with closed liquid circuit
GB2284467A (en) Venting and expansion system for a central heating installation
WO1996001375A1 (fr) Dispositif servant a accumuler ou a guider un liquide
JP2020186693A (ja) 燃料タンクシステム
WO2006065121A1 (fr) Procede pour monter un vase d'expansion dans un circuit liquide ferme et circuit liquide ferme avec vase d'expansion

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TN TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
ENP Entry into the national phase

Ref document number: 2004113443

Country of ref document: RU

Kind code of ref document: A

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP