MAGNETIC FILTER FOR A CENTRAL HEATING SYSTEM

• US 20170340994A1
• Filed: 08/21/2017
• Published: 11/30/2017
• Est. Priority Date: 02/19/2015
• Status: Active Grant

• Current Assignee: Adey Holdings (2008) Limited (Polypipe Limited)
• Original Assignee: Adey Holdings (2008) Limited (Polypipe Limited)
• Inventors: Downie, Simon, Pathan, Kashem
• Granted Patent: US 10,363,501 B2
• Time in Patent Office: Days
• CPC Class Codes: B01D 21/0009 Settling tanks making use of electricity or magnetism electric ultra filters B01D61/425; filters making use of electricity or magnetism B01D35/06; magnetic or electrostatic separation B03C
• CPC Class Codes: B01D 21/2411 having a tangential inlet
• CPC Class Codes: B01D 21/267 by using a cyclone
• CPC Class Codes: B01D 2221/02 Small separation devices for domestic application, e.g. for canteens, industrial kitchen, washing machines
• CPC Class Codes: B01D 35/06 Filters making use of electricity or magnetism ultrafiltration, microfiltration B01D61/14; electrodialysis, electro-osmosis B01D61/42; devices comprising filters and magnetic separators B03C1/30
• CPC Class Codes: B03C 1/0332 using permanent magnets
• CPC Class Codes: B03C 1/286 disposed at the inner circumference of a recipient, e.g. magnetic drain bolt
• CPC Class Codes: B03C 2201/18 Magnetic separation whereby the particles are suspended in a liquid
• CPC Class Codes: B03C 2201/28 Parts being designed to be removed for cleaning purposes
• CPC Class Codes: F16L 27/12 allowing substantial longitudinal adjustment or movement by use of screw-thread F16L15/02
• CPC Class Codes: F16L 27/125 having longitudinal and rotary movement
• CPC Class Codes: F24D 19/0092 Devices for preventing or removing corrosion, slime or scale
• CPC Class Codes: F24H 9/0005 for water heaters
• CPC Class Codes: F24H 9/45 for preventing galvanic corrosion, e.g. cathodic or electrolytic means
• CPC Class Codes: Y02B 30/00 Energy efficient heating, ventilation or air conditioning [HVAC]

Abstract

A magnetic filter 10 includes first and second separation chambers 10, 12. The separation chambers 10, 12 each have an inlet and an outlet, and the separation chambers 10, 12 are joined together such that the inlets of the first and second chambers are adjacent, and the outlets of the first and second chambers are adjacent. An inlet port arrangement 28 connects both inlets to a single inlet pipe, and an outlet port arrangement 30 connects both outlets to a single outlet pipe.

Claims

1. A magnetic filter for a central heating system, the magnetic filter including:

a first substantially cylindrical separation chamber having a first inlet and a first outlet, and a first magnet disposed within the first separation chamber;

a second substantially cylindrical separation chamber having a second inlet and a second outlet, and a second magnet disposed within the second separation chamber,

the first separation chamber and the second separation chamber being disposed next to each other, and sides of the first separation chamber and the second separation chamber being joined together, the first inlet of the first separation chamber being disposed adjacent the second inlet of the second separation chamber, and the first outlet of the first separation chamber being disposed adjacent the second outlet of the second separation chamber,

and the magnetic filter further including an inlet port arrangement between the first separation chamber and the second separation chamber for fluidly connecting the first inlet of the first separation chamber and the second inlet of the second separation chamber to a single inlet pipe, and an outlet port arrangement between the first separation chamber and the second separation chamber on the same side as the inlet port arrangement for fluidly connecting the first outlet of the first separation chamber and the second outlet of the second separation chamber to a single outlet pipe,

in use, flow through the inlet port arrangement being split between the first separation chamber and the second separation chamber, a first portion of the split flow entering the first separation chamber at a tangent and a second portion of the split flow entering the second separation chamber at a tangent, creating a first swirl of flow in the first separation chamber and creating a second swirl of flow in the second separation chamber, the first swirl of flow and the second swirl of flow swirling in opposing directions.

2. A magnetic filter as claimed in claim 1, in which the first magnet is provided substantially in a centre of the first substantially cylindrical separation chamber, and/or the second magnet is provided substantially in a centre of the second substantially cylindrical separation chamber.

3. A magnetic filter as claimed in claim 1, in which the first inlet of the first separation chamber is in a first curved wall of the first separation chamber, and the second inlet of the second separation chamber is in a second curved wall of the second separation chamber.

4. A magnetic filter as claimed in claim 3, in which the inlet port arrangement fluidly connects to the first inlet of the first separation chamber and to the second inlet of the second separation chamber substantially at a tangent to the first curved wall and substantially at a tangent to the second curved wall.

5. A magnetic filter as claimed in claim 1, in which the first outlet of the first separation chamber is in a first curved wall of the second separation chamber, and the second outlet of the second separation chamber is in a second curved wall of the second separation chamber.

6. A magnetic filter as claimed in claim 5, in which the outlet port arrangement fluidly connects to the first outlet of the first separation chamber and to the second outlet of the second separation chamber substantially at a tangent to the first curved wall and substantially at a tangent to the second curved wall.

7. A magnetic filter as claimed in claim 1, in which the inlet port arrangement and the outlet port arrangement each include a substantially Y-shaped flow path.