MAGNETIC PARTICLE SEPARATOR FOR THERMAL SYSTEMS

• US 20140367340A1
• Filed: 02/02/2012
• Published: 12/18/2014
• Est. Priority Date: 09/19/2011
• Status: Active Grant

• Current Assignee: Caleffi
• Original Assignee: Caleffi
• Inventors: Caleffi, Marco
• Granted Patent: US 9,925,543 B2
• Time in Patent Office: Days
• US Class Current: 210/695
• 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 21/0039 Settling tanks provided with contact surfaces, e.g. baffles, particles
• CPC Class Codes: B01D 21/2483 Means or provisions for manually removing the sediments
• 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 1/288 disposed at the outer circumference of a recipient
• CPC Class Codes: B03C 1/30 Combinations with other devices, not otherwise provided for
• CPC Class Codes: B03C 2201/18 Magnetic separation whereby the particles are suspended in a liquid
• CPC Class Codes: B03C 2201/20 Magnetic separation of bulk or dry particles in mixtures
• CPC Class Codes: B03C 2201/28 Parts being designed to be removed for cleaning purposes
• CPC Class Codes: F24D 19/0092 Devices for preventing or removing corrosion, slime or scale

Abstract

A magnetic particle separator (10) suitable for separating magnetic and non-magnetic particles from a thermal fluid flowing in a heating system. The magnetic particle separator (10) comprises a hollow body (10A, 10B) configured with an upper particle separation chamber (11) and for circulation of the thermal fluid between an inlet and an outlet port (12, 13), and a quieting chamber (15) beneath the particle separation chamber (11) for accumulation of the particles separated from the fluid: an annular support element (21) for permanent magnets (18) being removably fastened outside the quieting chamber (15) of the separator (10).

Claims

1. A magnetic particle separator, suitable to separate magnetic and non-magnetic particles entrained in a thermal fluid flowing in a heating system, comprising:

a hollow body configured with a particle separation chamber, having an inlet and an outlet port for the fluid;

means in the particle separation chamber configured to cause a reduction of the fluid flow velocity, and a separation by gravity of the magnetic and non-magnetic particles entrained by the fluid;

a quieting chamber positioned below and in fluid communication with the particle separation chamber, said quieting chamber having a particle discharge port at the bottom side; and

permanent magnet means for retaining the magnetic particles separated from the fluid, wherein the permanent magnet means comprises;

one or more permanent magnets arranged outside the quieting chamber, and

an annularly shaped magnet support element removably connectable to said hollow body, said magnet support element circumferentially extending around at least part of a peripheral wall of the quieting chamber of the separator device.

2. The magnetic particle separator according to claim 1, wherein the magnet support element and the hollow body of the separator, are provided with engageable and disengageable connecting means.

3. The magnetic particle separator according to claim 2, wherein the magnet support element consists of an elastically deformable annular element in the form of a side open ring.

4. The magnetic particle separator according to claim 2, wherein the magnet support element consists of an annular element in the form of a closed ring.

5. The magnetic particle separator according to claim 1, wherein the permanent magnets are axially extending along at least part of a peripheral wall of the quieting chamber.

6. The magnetic particle separator according to claim 1, comprising an intermediate particle transition zone, between the particle separation chamber and the quieting chamber.

7. The magnetic particle separator according to claim 1, wherein the particle separation chamber comprises means configured for reducing the flow velocity of the fluid flowing between the inlet and the outlet ports.

8. The magnetic particle separator according to claim 7, wherein the means for reducing the flow velocity consists of a filtering cartridge.

9. The magnetic particle separator according to claim 4, wherein the closed ring of the magnet support element and the hollow body of the separator comprise engageable and disengageable connecting means.

10. The magnetic particle separator according to claim 1, wherein the discharge port for the particles, is provided with a manually actuatable purging valve.

11. An annular support element for permanent magnets comprising an open ring member, or a closed ring member, removably engageable and disengageable outside the hollow body of the magnetic particle separator of claim 1.

12. Use of the annular support element for permanent magnets according to claim 11, in combination with the magnetic particle separator suitable to separate magnetic and non-magnetic particles entrained in a thermal fluid flowing in a heating system, comprising:

a hollow body configured with a particle separation chamber, having an inlet and an outlet port for the fluid;

means in the particle separation chamber configured to cause a reduction of the fluid flow velocity, and a separation by gravity of the magnetic and non-magnetic particles entrained by the fluid;

a quieting chamber positioned below and in fluid communication with the particle separation chamber, said quieting chamber having a particle discharge port at the bottom side; and

permanent magnet means for retaining the magnetic particles separated from the fluid, wherein the permanent magnet means comprises;

one or more permanent magnets arranged outside the quieting chamber, and

said annularly shaped magnet support element removably connectable to said hollow body, said magnet support element circumferentially extending around at least part of a peripheral wall of the quieting chamber of the separator device.