GB2553807A

GB2553807A - Central Heating Filter

Info

Publication number: GB2553807A
Application number: GB1615677.0A
Authority: GB
Inventors: Stewan Kukard Gideon
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-09-15
Filing date: 2016-09-15
Publication date: 2018-03-21
Also published as: GB201615677D0

Abstract

A filter and flow valve 4 suitable for connection to a central heating radiator 1, where the flow valve controls water flow, and the flow valve and filter are located between a central heating water feed or return pipe 6, 8 and a radiator inlet or outlet. The filter and flow valve have a housing with an inlet and outlet which may be at right angles. The filter may be magnetic 3, a strainer or a gravity trap to remove rust and debris 9. A visual indicator may be provided to show that the filter is empty or full. A screw on lid may allow access to the filter for cleaning, maintenance or to add chemicals. A central heating system is claimed, having a pump, two or more radiator inlets and outlets and a filter connected to each radiator inlet and/or outlet.

Description

(54) Title of the Invention: Central Heating Filter

Abstract Title: Filter and flow valve connected to radiator inlet or outlet (57) A filter and flow valve 4 suitable for connection to a central heating radiator 1, where the flow valve controls water flow, and the flow valve and filter are located between a central heating water feed or return pipe 6, 8 and a radiator inlet or outlet. The filter and flow valve have a housing with an inlet and outlet which may be at right angles. The filter may be magnetic 3, a strainer or a gravity trap to remove rust and debris 9. A visual indicator may be provided to show that the filter is empty or full. A screw on lid may allow access to the filter for cleaning, maintenance or to add chemicals. A central heating system is claimed, having a pump, two or more radiator inlets and outlets and a filter connected to each radiator inlet and/or outlet.

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Field of the Invention;

In colder countries heating gets used to provide comfortable living conditions in properties. Central heating systems operate by a boiler heating water, a pump pumping it around the radiators that radiate the heat into the rooms of the property. It is commonly referred to as a wet central heating system. The problem with these systems is that they rust and the rust cause problems with circulation. There are many filters (magnetic and non-magnetic) that can partly deal with this issue, but they don't illuminate it completely.

Background of the invention:

The problem with wet central heating systems is that they get filled with rust mostly from the radiators rusting In the water. There are also hits of debris pumping around the system. The rust gets, pumped around the system building-up/blocking sectlons/parts on the system up and causing damage or restricted flow to sensitive parts on the system, pump and boiler, it is common to need to replace part/s on the system or bolter as a result of this rust build-up or blockages. Many companies have come up with innovative magnetic and non-magnetic filtration units, fitted to the main pipework of the system.

The filters are fitted to the main pipe runs of the system, normally the main flow or return pipes to the boiler or on the main, pipe flow or return pipes to the pump on the system. None of these filters are fitted on or near the radiators (secondary pipework), oniyon the main pipe runs. The current solutions,, only filter the system water in one location on the main pipework as fitting 2 filters on the main pipework will simply filter the same water twice making the second· filter obsolete or at best a backup for the first filter failing, There is normally no source of rust on the main pipework, so no extra rust to filter.

The filters trap the rust using gravity, strainers or magnets so that if does not build-up in the system or block up the holier, The shortcoming of the current solutions it that is fitted in only one place on the system. The issue is that the rust gets generated in the radiators and have to travel through the whole system to get to the filter before it gets trapped, in reality most of the rust and debris have long sections to build-up in and can block parts of the system or boiler even when there Is a filter or filers fitted on the system.

The invention seeks to solve this problem, by filtering out the rust at the source, so that the rust cannot contaminate the system or any part of It, Fitting a filter to every radiator will filter out any rust generated by that radiator as long as the filter is regularly cleaned, it is also common sense that better filtration will be achieved by filtering the system at multiple points, throughout the system rather than just at critical parts or on the mein pipe work. The lack of filtration at several points, is especially crucial on commercial systems where It is not practical to have only one or two filters on main pipes for 100's of radiators, in practice, whole sections block up even though a filter is fitted to the system as the pipe runs between the radiators and the main pipes could be one hundred feet or longer. These large runs may contain over ten radiators each producing rust that has to travel one hundred feet before it gets filtered. That is one hundred feet where it can build-up, damage and block pipes and parts.

Fitting the currant filtering solutions are cumbersome, as the main pipe work have to be cut to fit them. The invention seeks to make it easy to fit a filter, as changing a radiator valve is much easier and more accessible than the main pipe runs.

Description and prior art:·

The invention seeks io completely illuminate rust entering the system from the rusting radiators, by fitting a titer onto the secondary pipework to or from, the radiator or by replacing the existing radiator valve with a filter that has the ability to be isolated, just like a normal valve would, if every radiator has a filter, on the flow and return (or either), the rust will be filtered out at the source before It enters the pipework/system, This makes it Impossible for the rust to restrict flow, damage, block pipes or parts of the system or boiler.

The filter may be made with the same union connections as the current conventional radiator valves on the market, so that retrofitting them to an existing system is as easy and straight forward as changing a radiator valve. Once fitted to one or all of the radiators, the water coming into and out of the radiator will be filtered all the time.

Fitting the filters onto the radiators, from a practicality standpoint Is advantages as they are In plain sight and easy reach of toe occupiers of the property. The filters can be manually cleaned whenever needed. Large building can replace some or all the conventional radiator valves for filters and the problem of rust will be completely eliminated as long as they keep the filters clean. There is no need for changing pipes or changing the whoie/part of the system. The systems will last longer and be more reliable, over time, as they are kept rust and debris free.

The fliers may be made from metal or plastic or a combination of both, The filter/s may contain a magnet/s or a strainer/s to aid in the filtrations. The invention can be made in any shape as long as it is fitted directly or Indirectly, to the radiator on one side (connection) and directly/indlrectly to the pipework, on the other connection. The fliter/s may be fitted to the flow or return, into and from the radiator or on both.

Summary of the invention:

The invention is. for a filter fitted to a central heating radiator dteetiy/indtectly, that may replace the current radiator vaive/s, providing filtration for the water being pumped through the system/radiator while it may also act as a conventional valve to isolate or restrict flow to the radiator. It may achieve this by a standard screwcap connected to- a rod and plunger or isolation vaive/s.

The filter is fitted into the heating system using two connections; one will he flow and one will be return, one connection is fitted to the radiator directly or indirectly, the other connection is connected to the central heating pipe that feeds the radiator, This pipe use to be connected to the bottom or side the replaced radiator valve. The filter may sit as a replacement to the radiator valve/s.

The filter may contain a gravity trap for the heavier rust and debris, white a magnet may be used to filter out magnetic particles. The magnet may be fitted inside the Alter or to the exterior casing of the filter.

The filter may have an air bleed point, where the air could be bleed from.

The filter may be made from any suitable material including plastic or metal or a mixture of materials.

The filter may contain a drain point which can also set as a flushing point for the filter or system. The drain point may contain an isolation valve to open and dose off flow.

The filter may contain one or more isolation valves that can be used to isolate the radiator/fifter from the flow of the system water. The isolation valves may be located at either or both, the fiow into filter or where the water returns into system, so· on both or either connections.

The filter may fake any shape that will provide better fiitratior standard radiator valve than a filter.

including looking more like a

The filter may be of any size.

The filter may be fitter to either or both sides of the radiator, fiow or return.

The filter may contain a strainer to provide filtration of larger particles.

The filter may contain a visual Indicator to show that the filter is empty or foil (filled with rust and debris).

The filter can be fitted to radiators on any type on wet central heating system, domestic or commercial. Where the pipes and layout can be of any material.

The filter may have a screw on lid that can be unscrewed to open the filter for cleaning, maintenance or to add chemicals to the central heating system. This screw on lid may be at the top or bottom of the unit as well as on either side, left or right.

Various types of pipe extension/s may be. used, in different configurations,, to connect the filter to the radiator (on one side) and the feed pipe (one the other side) as long as the filter is fitted on the secondary pipework to/from the radiator and not on the main pipework runs-to/from boiler.

The invention may take a form different to that specifically described above.

Further modifications will be apparent io those skilled in the art without departing from: the scope of the invention.

Brief description of drawings:

Figure 1 ~ Shows on filter fitted to a radiator.

Figure 2 - Shows the inner workings of a filter.

Figure 3 - Shows a different shaped filter.

Figure 4 - Shows the same filter layout as Figure 3, However the screwcap, rod and plunger has been replaced for an isolation valve.

Figure 5 'Shows a sealed wet central heating system with a boiler, pump a three radiators.

Figure 6 - Shows an open vented wet central heating system with a boiler, pump, cylinder and 2 radiators connected to it

Description of drawings:

Figure i - Show a radiator (1} connected to a fiiter/valve (4) where (2) Is the screwcap to turn off or restrict'the flow to pipe (6); (3} Is a magnet to aid in the filtering; (5} drain point, (5) pipe to central heating system; (9} rust building up in radiators; (8) other pipe to central heating system; (?) is the conventional radiators valve.

Figure 2 - Shows the internal workings of the fiiter/valve. Where (1) is the screwcap- connected to rod and plunger (2} that restricts the flow to centra! heating pipe (5); (3} is an extension tube that sends the flow of water from radiator over the trap with magnet (4); (6} Is the connection to the radiator.

Figure 3 ~ Shows the internal working of a fiiter/valve, where (1). screwcap connected to (5} rod and plunger. The flow of water from or to radiator can be restricted, by dosing off pipe (5); (4} extension of connection to radiator (10} diverting flow over the rust/debris trap; (2) bleed point to remove air; (3} screw cap to open or close the fiiter/valve; (?) trapped rust and debris; (8} Drain/fteh point; (9} central heating, pipe; (10} connection to heating radiator.

Figure 4 - Shows the same layout as the filter In figure 3, but the screwcap, rod and plunger has been replaced by a. isolator valve (1) on the bottom of the fiiter/valve; (2} shows an alternative iocation to- place the isolator valve. This will restrict the flow of water through the filter/vaive and radiator.

Figure 5 ~ Shows a sealed heating system with a. boiler (3} connected through main pipework (2)(5)(3} to radiators (8}. The system functions by the boiler (3} heating the water, pump (4} moving the water through the main pipe runs (2)(5)(9), then trough the secondary pipework (1)(6)(7)(10} that has the radiators (8.} connected to them. This invention only seeks a patent for a filter connected to the secondary pipework (1)(6)(7)(10} of the system, not the main pipework (2)(5)(9).

Figure 6 - Shows an open vented wet central heating system, where the boiler (2) heats the water the pump (5} moves the water through the main pipes (1)(3)(7) to the secondary pipework (4)(8)(10)(12) connected to the radiators (9)(11). The hot water cylinder (6) is connected to the main pipework. This invention seeks a patent only for the filter to be connected to the secondary pipework (4)(8)(10)(12) connected to radiators (9)(11), not to the main pipework (1)(3)(7),.

The invention may take a form different to that specifically described above.

Further modifications will be apparent to those skilled in the art without departing from the scope of the invention.

Claims

ί. A filter told flow wive fi® conneetton: to a central heating radiator inlet: normally connected to a wafer feed pipe or a central heating radiator outlet; normally connected to a water return, pipe comprising:

a) a housing, hi a housing inlet for connection to the water feed pipe of a radiator or the radiator outlet,

e) a housing output for connection to the radiator inlet,

Λ awfeve _:tetoe to control low of wafer through fee housing:: between: fee hewing/tofef and

e) a fife device to filter water Sowing through the housing between the housing inlet and

15 12 16 outlet
2, A filter and flow valve according to claim 1, wherein the inlet and outlet of the housing are axiafiy feigned at SS degrees:>wds other andhousing' dimensioned whereby fee wive can replace conventional radiator valves.
3. A filter Wdfiew valve according to claim 1 or: fe whsrefedmnsfeg inlet. and outlet have connectors designed to fit water feed and return pipes and/or radiator inlet and outlets.

< A /filter and flow valve according to: any feecedfegmlferfe whereto: fee filter devtoe: includes < a magnet/s and/or strainer/s.

3, A filter/and flow valve according to olatot 4, whereto fee tnagnsf is: fitted inside; fee housing or to the exterior housing.

15 12 16
6. A filter and flow valve according to any preceding claim wherein the filter device contains .a gravity trap for the heavier rust and debris..
7, A filter and. few valve according to any preceding claim, wherein an air bleed point is provided.
8: A fife' and flow valve- according to any preced ing tlai m, wherein a drain joint is provided: to act a? a flashing pomt tor die fiber or system
9, A fife and flow valve according to claim 8, wherein the drain point, contains an isolation valve to open and close oififiow.
10. A fi Iter and flow valve according io my preceding claim wherein the valve device: includes a screweap connected to a rod and plunger or isolationvalve/s.
11. A filter and flow valve according to any preceding; valves are provided to isolate the flow and filter valve claim, wherein one or more, isolation from the flow of heating system water.
12. A filter and flow valve according to any preceding claim, wherein a visual indicator is provided to show that the filter is empty or foil.
13 . A filter and flow valve according to- any preceding elainr wherein, a screw on lid is pros ided that can be unscrewed to open the filter for cleaning maintenance m to add chemicals m the t enfial hearing system.
14. Afilter and flow control valve substantially as hereinbefore described wdh reference to and. as shown in the accompanying. drawings.
15. The invention also relates to a central heating system comprising a boiler, main feed and return pipes, secondary pipework connectingtwo or more radiator inlets and outlets io the main feed and return pipes:, and a .pump to pump hot water from the boiler around the system, the system further comprising a filter connected to c.wh mdsauu hum and, or outlet
16. .A system according M claim: 15. wherein the ft her t$ a filter and flow control valve as ebimed ίπ/asy of claims 1 to 1.4,

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17. A central hearing system substantially as hereinbefore described with reference to and as shown· in the. accompanying, drawings.

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Application No: Claims searched:

GB1615677.0

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