GB2442008A - Dosing vessel for sealed central heating system - Google Patents
Dosing vessel for sealed central heating system Download PDFInfo
- Publication number
- GB2442008A GB2442008A GB0618383A GB0618383A GB2442008A GB 2442008 A GB2442008 A GB 2442008A GB 0618383 A GB0618383 A GB 0618383A GB 0618383 A GB0618383 A GB 0618383A GB 2442008 A GB2442008 A GB 2442008A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vessel
- central heating
- dosing vessel
- heating system
- vessel according
- 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- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920001971 elastomer Polymers 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 6
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000011010 flushing procedure Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000011076 safety test Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 abstract description 2
- 239000003112 inhibitor Substances 0.000 abstract description 2
- 239000004033 plastic Substances 0.000 description 10
- 229920003023 plastic Polymers 0.000 description 10
- -1 polypropylene Polymers 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 4
- 239000010951 brass Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 210000002445 nipple Anatomy 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 210000003811 finger Anatomy 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
-
- 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
- F24D19/0092—Devices for preventing or removing corrosion, slime or scale
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Closures For Containers (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A container for adding a chemical such as an inhibitor to a pressurized central heating system has a wide mouthed vessel to which the chemical can be added, and a screw cap with two fluid connections. One of the connections is attached to the filling loop of the heating system, whilst the other is connected, via a flexible hose, to a mains water supply. When the valves are opened, mains water mixes with the chemical and forces it into the heating system.
Description
I
Central Heating Dosing Vessel This invention relates to a water propelled chemical dosing vessel designed to be used on domestic sealed type central heating systems (e.g. combi boilers).
Heating systems require chemicals such as rust inhibitors, cleansers and descalers etc to ensure their long life, efficient operation and to comply with manufacturers warranties. When a domestic sealed type central heating system is newly installed or drained down for maintenance, for example the exchanging of a radiator or pump, chemicals need to be added. At present a radiator valve or a blanking cap is often removed to allow liquid to be either, poured in using a funnel, forced in using a garden sprayer or disposable aerosol cans or injected in using a cartridge and gun. These methods are either expensive or time consuming, special fittings, adapters, tools, dust sheets and cloths etc have to be found, there is also the added risk of spillage and associated claims for damage to floor coverings. When working on old heating systems where a fitting has to be disconnected to administer chemicals, it can cause extra problems if the joint does not reseal, resulting in further time delays.
To overcome these problems, the present invention proposes that a portable dosing vessel, designed to withstand pressure could be used, in combination with our registered screw cap design and some fittings. The dosing vessel can easily be attached to most domestic sealed type central heating systems via the boiler filling loop valve connections. When the valves are opened the flow of mains water pressure enters the vessel, and mixes with the chemicals using our plunge pool method', the solution is then forced into the central heating system.
It is a unique and cost effective way to add chemicals to domestic condensing combination boiler heating systems these are classed as being sealed types'.
The dosing vessel will save the user time, it's quick, very easy to use and clean, chemicals can be added in minutes, it may also lower the risk of spillage and associated insurance claims, the only tools required will be a pair of pipe grips! Preferably the vessel will feature, (a) a maximum volume of between 1.25 to 1.50 litres.
(b) a wide closure/cap! making it easier to pour liquids in, with low risk of spillage.
(c) the ability to withstand a hydraulic test pressure of at least 4 bar (60psi).
(d) a screw thread designed for heavy duty that will expand under pressure and yet still form a seal using a rubber type o' ring.
(e) an injection moulded construction from any plastic such as polypropylene or high density polyethylene etc. z Preferably the closure will feature, (a) a wider screw cap as compared to a bottle, so that fluid ports can be moulded on for fittings to screw into, there would also need to be enough space to get to the fitting connections easily with your fingers, or a spanner.
(b) the ability to withstand a hydraulic test pressure of at least 4 bar (6Opsi).
(C) a screw thread designed for heavy duty that will expand under pressure and yet still form a seal using a rubber type a' ring.
(d) an injection moulded construction from any plastic such as polypropylene etc. (e) resistance to low impact damage, such as being dropped onto the floor.
(f) practicality and be aesthetically pleasing and interesting to the eye.
(g) a silicon hose fitted to the base of the cap, this helps the mixing process.
Preferably the hose will feature, (a) thumb turn wing nuts on each end of the flexible braided stainless steel sheathed rubber hose, so it can be easily connected and disconnected. It will also have male o' ring spigots pressed onto each end that will fit inside the fitting on the cap and inside any of the two valves.
(b) the ability to withstand a hydraulic test pressure of at least 4 bar (6Opsi).
(c) the ability to resist kinking, thus restricting flow, the circular shape was chosen to help prevent this and make carrying and hanging the unit in between use as practical as possible.
(d) materials that have anti corrosion properties.
Preferably the fittings screwed into the closure will feature, (a) the ability to withstand a hydraulic test pressure of at least 4 bar (6Opsi).
(b) anti corrosion properties such as brass, treated/plated steel or any plastic such as polypropylene.
(C) resistance to low impact damage, such as being dropped onto the floor.
The invention will now be described solely by way of example and with reference to the accompanying drawings in which: Figure 1.
Shows the cap (8) unscrewed and removed from the vessel (7) and the chemical solution (10) is being added, the cap is then replaced to be hand tight.
Figure 2.
Shows the blanking cap (1) removed from the non return valve (4) the filling loop hose (5) supplied with the dosing vessel (7) is connected from the vessel (any side) to the non return valve (4) on the central heating return pipe, the system has been drained and is now empty, the pressure gauge (II) is at 0 bar, all draining off points, and radiator bleed valves can be sealed ready for filling up.
Figure 3.
Shows the blanking cap (1) removed on the cold water inlet valve (2) and the hose supplied with the boiler (3) is connected from the vessel at fitting (9) to the cold water inlet valve (2). Valves (2) and (4) are opened and the solution is flushed through into the central heating system, the water from the mains supply enters the vessel (7) and mixes with the solution, this travels up tube (6) and mixes further inside the central heating system, the system is filled until the pressure gauge (11) reads approximately 0.5 bar, then the valves are turned off.
Figure 4.
Shows the dosing vessel disconnected, and the boiler filling loop (3) connected from the non return valve (4) on the central heating return pipe to the cold water inlet valve (2). Valves (2) and (4) are opened to fill up the central heating system and all radiators are bled of air, the system is filled till the gauge (11) is reading 1 bar (normal operating pressure). The cold water inlet valve (2) and the non return valve (4) must be closed, then the filling loop hose (3) can be disconnected, the blanking caps (1) are then refitted back to each valve and tightened, the job is now complete and the system has been dosed.
A further description of the four main components that form the Dosing Vessel' 1. The Flexible Hose This is a standard type combination boiler filling-loop hose. It is manufactured from high pressure specification flexible rubber pipe and wrapped with a flexible, stainless steel braided protective covering. Identical fittings are then crimp pressed onto each end of the hose, these are the thumb turn wing nut type 1/2 bsp nut fittings with a male o' ringed spigot. The hose connects to the brass/plastic male nipple fittings on the plastic/polypropylene cap, and to one of the filling loop valves to form a watertight joint. The hose could be made from flexible plastics, rubber, silicone, reinforced polyester or nylon etc. 2. The Fittings Two brass/plastic screw type threaded 1/2 bsp nipple fittings screw into the top of the closure and are sealed by o' ring rubber type seals, or washers made from nylon/rubber/teflon etc. The protruding part of the fitting is also threaded to allow the filling loop hose to screw onto it The internal diameter is the exact size to form a seal by the o' ring on the hose spigot, that enters into the inside of the brass/plastic nipple fitting. These fittings could also take the form of the push fit type o' ring seal designs made from any type of plastic.
3. The Closure The closure/cap is a registered design and can be manufactured from any type of plastic, such as polypropylene or polyethylene and incorporates either an o' ring seal or a flat rubber/neoprene/teflon seal with a heavy duty internal thread to match the external thread of the vessel, this is made slightly larger to enable movement of the screw cap, it forms an engineered leak proof seal under pressure and expansion. There are also two % bsp threaded holes that lead into the top of the vessel, they allow water to enter in and out of the vessel. One of the ports has a spout inside the vessel, where a rubber hose pushes on, this is designed to create better mixing during the flushing process, these two internally threaded holes or ports have chamfered faces on their outside periphery to allow a rubber o' ring to seal on the mating face of the cap to fitting joint.
4. The Vessel The design of the vessel/jar/bottle is special it has a wide screw type top/closure and its shape, material and thickness have been developed to ensure it will withstand pressures exceeding 4 bar (60 psi). It could be moulded from any plastic such as polypropylene, polyethylene or high density polyethylene and will hold 1.25 litres. The patented thread design allows the screw cap/closure and vessel/jarbottle to expand under pressure whilst still forming a watertight joint.
(This vessel is already manufactured in the UK, the company have kindly sent me their thread specification, so we could design and mould the closure).
Claims (6)
- Claims 1.A portable dosing vessel with a wide male screw thread type closure is used in combination with our registered cap design with identical female screw thread compatibility, comprising attachment means, for attaching the unit to the two filling loop valve connections as found on a typical sealed type domestic central heating systems, whereby water pressure and flow are used as the motive force to mix and flush out any chemical solution poured into the vessel, through and into the central heating system, the unit can then be disconnected, all components must be able to withstand a pressure safety test of 4 bar (6Opsi) and resist failure.
- 2.A portable dosing vessel according to claim 1, in which the means of attaching the unit is by using any type of flexible hose including the standard combination boiler filling loop, typically made from high pressure rubber with a braided stainless steel protective sheathing, and half inch British Standard Pipe female fittings with male o' ring spigots on both ends
- 3.A portable dosing vessel according to claim 1, in which the maximum volume of the vessel is less than 2 litres capacity.
- 4.A portable dosing vessel according to claim 1, in which the chemical mixing, flushing and dosing process is propelled solely by using the mains' cold water supply to the building.
- 5.A portable dosing vessel according to claim 4, in which the chemical solution administered to the vessel will be mixed in a way similar to our plunge pool method' as shown in drawing 3, on page
- 6.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0618383A GB2442008A (en) | 2006-09-19 | 2006-09-19 | Dosing vessel for sealed central heating system |
GBGB0712669.1A GB0712669D0 (en) | 2006-09-19 | 2007-06-29 | Dosing device |
PCT/GB2007/003540 WO2008035060A1 (en) | 2006-09-19 | 2007-09-19 | Dosing device |
GB0903027A GB2454144B (en) | 2006-09-19 | 2007-09-19 | Dosing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0618383A GB2442008A (en) | 2006-09-19 | 2006-09-19 | Dosing vessel for sealed central heating system |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0618383D0 GB0618383D0 (en) | 2006-10-25 |
GB2442008A true GB2442008A (en) | 2008-03-26 |
Family
ID=37310157
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0618383A Withdrawn GB2442008A (en) | 2006-09-19 | 2006-09-19 | Dosing vessel for sealed central heating system |
GBGB0712669.1A Ceased GB0712669D0 (en) | 2006-09-19 | 2007-06-29 | Dosing device |
GB0903027A Expired - Fee Related GB2454144B (en) | 2006-09-19 | 2007-09-19 | Dosing device |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GBGB0712669.1A Ceased GB0712669D0 (en) | 2006-09-19 | 2007-06-29 | Dosing device |
GB0903027A Expired - Fee Related GB2454144B (en) | 2006-09-19 | 2007-09-19 | Dosing device |
Country Status (1)
Country | Link |
---|---|
GB (3) | GB2442008A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2457988A (en) * | 2008-03-07 | 2009-09-09 | Andrew Michael Byrnes | Flushing apparatus for connection to a heating system |
GB2482168A (en) * | 2010-07-22 | 2012-01-25 | Kevin Abbott | Central heating system chemical dosing apparatus |
WO2012010852A2 (en) | 2010-07-22 | 2012-01-26 | Kevin Abbott | Fluid dose dispensing apparatus |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2162164A (en) * | 1984-07-20 | 1986-01-29 | Trevor Honeyman | Water treatment method and apparatus |
WO1999036732A1 (en) * | 1998-01-20 | 1999-07-22 | Anil Vasdev | Fluid introduction device |
GB2387221A (en) * | 2002-03-06 | 2003-10-08 | Paul Graham Littlewood | A Method and apparatus for introducing fluid into a sealed heating system |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1205037A (en) * | 1957-10-29 | 1960-01-29 | Benckiser Gmbh Joh A | Device intended to protect water heaters from scaling |
NL7507125A (en) * | 1975-06-16 | 1976-12-20 | Gerard Pieter Maria Janssen | Removing scale from hot water systems - by portable pump and tank circulating acid soln. with mordancy inhibitors |
GB2351785B (en) * | 1999-07-09 | 2001-11-28 | Ferex Ltd | A central heating system flushing apparatus |
-
2006
- 2006-09-19 GB GB0618383A patent/GB2442008A/en not_active Withdrawn
-
2007
- 2007-06-29 GB GBGB0712669.1A patent/GB0712669D0/en not_active Ceased
- 2007-09-19 GB GB0903027A patent/GB2454144B/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2162164A (en) * | 1984-07-20 | 1986-01-29 | Trevor Honeyman | Water treatment method and apparatus |
WO1999036732A1 (en) * | 1998-01-20 | 1999-07-22 | Anil Vasdev | Fluid introduction device |
GB2387221A (en) * | 2002-03-06 | 2003-10-08 | Paul Graham Littlewood | A Method and apparatus for introducing fluid into a sealed heating system |
Non-Patent Citations (1)
Title |
---|
UK Registered Design number 3025274 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2457988A (en) * | 2008-03-07 | 2009-09-09 | Andrew Michael Byrnes | Flushing apparatus for connection to a heating system |
GB2482168A (en) * | 2010-07-22 | 2012-01-25 | Kevin Abbott | Central heating system chemical dosing apparatus |
WO2012010852A2 (en) | 2010-07-22 | 2012-01-26 | Kevin Abbott | Fluid dose dispensing apparatus |
GB2482168B (en) * | 2010-07-22 | 2014-12-24 | Kevin Abbott | Fluid system chemicals dosing apparatus |
Also Published As
Publication number | Publication date |
---|---|
GB0903027D0 (en) | 2009-04-08 |
GB0712669D0 (en) | 2007-08-08 |
GB0618383D0 (en) | 2006-10-25 |
GB2454144B (en) | 2011-09-21 |
GB2454144A (en) | 2009-04-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |