EP1229291A2 - Groupe de sécurité permettant de protéger un chauffe-eau sanitaire fermé - Google Patents

Groupe de sécurité permettant de protéger un chauffe-eau sanitaire fermé Download PDF

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Publication number
EP1229291A2
EP1229291A2 EP02002520A EP02002520A EP1229291A2 EP 1229291 A2 EP1229291 A2 EP 1229291A2 EP 02002520 A EP02002520 A EP 02002520A EP 02002520 A EP02002520 A EP 02002520A EP 1229291 A2 EP1229291 A2 EP 1229291A2
Authority
EP
European Patent Office
Prior art keywords
valve
expansion vessel
membrane
diaphragm
connection fitting
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP02002520A
Other languages
German (de)
English (en)
Other versions
EP1229291A3 (fr
Inventor
Rudolf Dipl.-Ing. Vollmer (Fh)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vollmer Ingenieurbuero
Original Assignee
Vollmer Ingenieurbuero
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 Vollmer Ingenieurbuero filed Critical Vollmer Ingenieurbuero
Publication of EP1229291A2 publication Critical patent/EP1229291A2/fr
Publication of EP1229291A3 publication Critical patent/EP1229291A3/fr
Withdrawn legal-status Critical Current

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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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1016—Tanks having a bladder
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • 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
    • F24D3/00—Hot-water central heating systems
    • F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
    • F24D3/1008—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system expansion tanks
    • F24D3/1041—Flow-through
    • 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
    • F24H9/00—Details
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F24H9/133—Storage heaters
    • F24H9/136—Arrangement of inlet valves used therewith

Definitions

  • the present invention relates to a security group according to the generic term of Claim 1.
  • the non-return valve should Prevent heated drinking water from being pushed back into the cold water pipe.
  • the shut-off valve on the inlet side in connection with the test connection is used for the leak test of the backflow preventer.
  • the backflow preventer itself must be used for maintenance purposes be interchangeable without removing the safety group from the pipeline itself have to. After shutting off the inlet and outlet shutoff valves and the removal of a threaded plug that closes the assembly opening can Backflow preventer can be replaced.
  • the membrane safety valve prevents one impermissible pressure rise above the preset response pressure, due to the safe Drainage of the expansion water.
  • Stagnation water suggested the diaphragm expansion vessel with a hose membrane equip, which is arranged coaxially to the cold water supply and flows directly through is.
  • This arrangement certainly avoids the stagnation of drinking water in the Diaphragm expansion vessel, but has the disadvantage that due to the diameter of the Diaphragm expansion vessel the wall distance of the pipeline in the area of Diaphragm expansion vessel can not be maintained and the installation length extremely becomes large, so that this solution has no practical application.
  • DE 25 19 211 shows a security group in which the two are opposite one another Shut-off valves and the check valve located in the outlet-side shut-off valve act on a common valve seat.
  • This solution leads to a short overall length, but the connection of a diaphragm expansion vessel is only possible by installing one downstream connection fitting, as described for example in EP 0 884 539 A. is possible. By installing a connection fitting downstream, the advantage of short overall length and the costs for the security group and the installation these are significantly increased.
  • EP 0 905 454 A 2 shows a security group in which the connection fitting for a Diaphragm expansion vessel is integrated in the housing of the security group.
  • the connection fitting the diaphragm expansion vessel, the flow device and the additional Shut-off valve for checking and maintenance of the diaphragm expansion tank must be included
  • this security group must be duplicated so that this security group for the inflow from the right or left can be used.
  • a disadvantage of this solution are not only the higher manufacturing costs due to the duplicate modules, but also the horizontal arrangement of the diaphragm expansion vessel protruding into the free space and the limited effectiveness of the flow device. Because of the limited Only small diaphragm expansion vessels can be connected to the flow; the means that with this safety group only drinking water heaters with a small tank content can be secured.
  • the known flow dividers for example in EP 0884 539 A or EP 0 905 454 A2 executed, work on the principle of a fixed flow resistance on the a partial flow for purging the membrane expansion vessel is removed. There the pressure drop at the fixed flow resistance with the square of the If the flow rate changes, a sufficient partial flow is required to flow through the diaphragm expansion vessel only achieved with large hot water withdrawals, moreover, the Effect of this flow-through device is only effective in the vicinity of the connection.
  • the invention has for its object a security group for a closed To develop drinking water heaters that have a short installation length, a good flow of the diaphragm expansion vessel and freedom in arrangement and size selection it connects with each other and can also be produced inexpensively.
  • this object is achieved in that a short Installation length, the fittings required for a standard-compliant installation in one U-shaped housing are housed and that the connection fitting with the flow divider as an assembly, without removing the security group, at any time afterwards a threaded plug can be installed.
  • the U shape of the housing allows that Housing the required valve functions outside the main flow axis in the legs perpendicular to this, so that the desired short installation length the security group is reached.
  • the outlet channel of the flow divider is inside of the connecting line running flexible hose to the surface of the membrane extended, the hose end by a weight or by a around or in the hose wound coil spring is pressed against the membrane.
  • the flow divider is with a flow resistance controlled by the flow, which over the entire Flow area an almost constant partial flow through the membrane expansion vessel lets flow.
  • the wall distance of the membrane expansion vessel is with the swiveling S-shaped Connection tube adjustable and the flexible hose is through the S-shaped connection tube up led to the membrane surface of the membrane expansion vessel, whereby the required Water exchange in the membrane expansion vessel is ensured.
  • the membrane expansion vessel can also be removed from the safety group at any Fixed and the hydraulic connection to the security group via commercially available Pipes and fittings are made using the flexible hose from the connection fitting, is led through the connecting line to the membrane surface.
  • connection fitting with its flow divider between the first and second shut-off valve, but after the backflow preventer, saves on the known ones Constructions necessary additional shut-off valve for the maintenance of the diaphragm expansion vessel on. Fewer parts and less material lead to one significant reduction in manufacturing costs.
  • FIG. 1 The fittings mandatory in national and European standards for Protection of a closed drinking water heater (TEW) are shown in FIG. 1 represented symbolically. It means (1) the shut-off valve on the inlet side, (2) the Test connection for the non-return valve, (3) the non-return valve, (4) the outlet side Shut-off valve and (5) the diaphragm safety valve.
  • the total length of the Individual fittings plus the distances between the fittings for the connecting parts result the total installation length (G).
  • FIG. 3 A preferred embodiment of the security group according to the invention is shown in FIG. 3.
  • the mounting opening (38) is either with the threaded plug (12) or during installation sealed with a diaphragm expansion vessel (13) through the connection fitting (39).
  • the Safety group is as shown in Figure 2 in the cold water supply to the DHW heater (TEW) installed. When hot water is drawn, the DHW is heated Cold water fed through the security group. The water flows through the entrance opening (14) into the U-shaped housing (15), flows through perpendicular to the input axis (-16-) shut-off valve (1) on the inlet side, which is designed as a ball valve, past the test connection (2) by the backflow preventer (3), the valve cone (20) by the spring (21) is pressed against its valve seat (19).
  • the second partial flow also leads directly via the flow divider (42; 44) into the chamber (24) and then together with the first partial flow through the outlet side Shut-off valve (4), past the diaphragm safety valve (5), via outlet 31, the Leave safety group in the direction of the drinking water heater (TEW).
  • the membrane expansion vessel (13) is through a membrane (32) in the water-loaded chamber (33) and the chamber (34) under gas pressure.
  • the valve (35) on the one hand the compressed gas is filled in and at the same time the valve (35) is used to check the gas pressure (PG).
  • the gas pressure (pG) in the chamber (34) can be measured and by comparison with the nominal value the function of the diaphragm expansion vessel (13) can be assessed.
  • the membrane expansion vessel (13) can also be placed anywhere on a wall assembled and with commercially available pipes (46) and fittings (45) with the safety group be connected according to Figure 6. In this case too, there is a good flow of the diaphragm expansion vessel (13) through the one laid in the pipeline (45; 46) up to Surface of the membrane (32) guided flexible hose (27) reached.
EP02002520A 2001-02-06 2002-02-02 Groupe de sécurité permettant de protéger un chauffe-eau sanitaire fermé Withdrawn EP1229291A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10105393A DE10105393C1 (de) 2001-02-06 2001-02-06 Sicherheitsgruppe zur Absicherung eines geschlossenen Trinkwassererwärmers
DE10105393 2001-02-06

Publications (2)

Publication Number Publication Date
EP1229291A2 true EP1229291A2 (fr) 2002-08-07
EP1229291A3 EP1229291A3 (fr) 2003-07-09

Family

ID=7673066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002520A Withdrawn EP1229291A3 (fr) 2001-02-06 2002-02-02 Groupe de sécurité permettant de protéger un chauffe-eau sanitaire fermé

Country Status (2)

Country Link
EP (1) EP1229291A3 (fr)
DE (1) DE10105393C1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2391588A (en) * 2002-07-31 2004-02-11 Sasserath & Co Kg H Expansion cavity arrangement for water heating system with valve to prevent entry of water below a predetermined pressure
EP1681520A3 (fr) * 2004-12-29 2006-09-06 Hans Sasserath & Co Kg vanne pour de fluide
DE102012022576A1 (de) 2012-06-19 2013-12-19 Caleffi S.P.A. Sicherheitsventilgruppe
GB2517030A (en) * 2013-05-28 2015-02-11 Sasserath & Co Kg H Safety Group with Expansion vessel
GB2555425B (en) * 2016-10-26 2019-06-26 Vexo International Uk Ltd Expansion vessel for a heating or cooling system
WO2020185084A1 (fr) * 2019-03-12 2020-09-17 Flamco B.V. Raccord de fluide flexible
RU2806966C2 (ru) * 2019-03-12 2023-11-08 Фламко Б.В. Гибкий соединитель для текучей среды

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2182294B1 (fr) 2008-10-28 2017-03-01 Reflex Winkelmann GmbH Vase d'expansion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE251911C (fr)
DE8203569U1 (de) 1981-02-13 1982-09-16 Flamco B.V., 2802 Gouda Expansionsgefaess
DE4302356A1 (de) 1993-01-28 1994-08-04 Honeywell Ag Membranausdehnungsgefäß
EP0884539A1 (fr) 1997-06-10 1998-12-16 Hans Sasserath & Co Kg Armature de connexion pour vase d'expansion pour eau chaude sanitaire
EP0905454A2 (fr) 1997-09-24 1999-03-31 Hans Sasserath & Co Kg Armature de connexion pour connecter un vase d'expansion à une tuyauterie

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2519211C2 (de) * 1975-04-30 1985-05-09 Honeywell-Braukmann GmbH, 6950 Mosbach Sicherheitsarmatur
CH675603A5 (fr) * 1987-11-11 1990-10-15 Nussbaum & Co Ag R

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE251911C (fr)
DE8203569U1 (de) 1981-02-13 1982-09-16 Flamco B.V., 2802 Gouda Expansionsgefaess
DE4302356A1 (de) 1993-01-28 1994-08-04 Honeywell Ag Membranausdehnungsgefäß
EP0884539A1 (fr) 1997-06-10 1998-12-16 Hans Sasserath & Co Kg Armature de connexion pour vase d'expansion pour eau chaude sanitaire
EP0905454A2 (fr) 1997-09-24 1999-03-31 Hans Sasserath & Co Kg Armature de connexion pour connecter un vase d'expansion à une tuyauterie

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2391588A (en) * 2002-07-31 2004-02-11 Sasserath & Co Kg H Expansion cavity arrangement for water heating system with valve to prevent entry of water below a predetermined pressure
EP1681520A3 (fr) * 2004-12-29 2006-09-06 Hans Sasserath & Co Kg vanne pour de fluide
DE102012022576A1 (de) 2012-06-19 2013-12-19 Caleffi S.P.A. Sicherheitsventilgruppe
DE102012022576B4 (de) * 2012-06-19 2020-10-15 Caleffi S.P.A. Sicherheitsventilgruppe
GB2517030A (en) * 2013-05-28 2015-02-11 Sasserath & Co Kg H Safety Group with Expansion vessel
GB2555425B (en) * 2016-10-26 2019-06-26 Vexo International Uk Ltd Expansion vessel for a heating or cooling system
WO2020185084A1 (fr) * 2019-03-12 2020-09-17 Flamco B.V. Raccord de fluide flexible
NL2022725B1 (en) * 2019-03-12 2020-09-18 Flamco Bv Flexible fluid connector
RU2806966C2 (ru) * 2019-03-12 2023-11-08 Фламко Б.В. Гибкий соединитель для текучей среды

Also Published As

Publication number Publication date
DE10105393C1 (de) 2002-07-25
EP1229291A3 (fr) 2003-07-09

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