US 2018/0372373 A1 · INTERNAL TANK HEATING COIL

Abstract

A system includes a tank containing a fluid to be heated; a U-shaped pipe disposed proximate a bottom of the tank, a majority of the extent of the U-shaped pipe being disposed within an interior of the tank; a catalyst unit embedded within the U-shaped pipe, the catalyst unit comprising a catalyst wrapped, natural gas filled, perforated pipe that is configured to enable a catalytic reaction on its exterior; a vent pipe attached to the U-bend pipe which allows air to circulate; and mechanical controls disposed proximate the U-shaped pipe configured to vary temperature output.

Claims25

Dependent claims

1-3. (canceled)

A system for heating a vessel comprising:

(a) a tank containing a fluid to be heated;
(b) an outer shell comprising
(i) a tubular upper leg,
(ii) a tubular lower leg disposed generally parallel to the tubular upper leg,
(iii) wherein the tubular lower leg is in fluid connection with the tubular upper leg proximate a first end of the tubular lower leg,
(iv) wherein the tubular lower leg comprises an access opening at a second end of the tubular lower leg providing access to an interior thereto;
(c) a catalyst insert disposed within the interior of the tubular lower leg, the catalyst insert comprising
(i) a central gas delivery tube comprising a plurality of openings disposed along its length for the outflow of gas from the gas delivery tube,
(ii) a generally cylindrical perforated core surrounding the central gas delivery tube, the perforated core comprising a plurality of openings for facilitating flow of gas through the perforated core,
(iii) refractory insulation wrapped around the outside of the perforated core,
(iv) a heating element comprising a wire including
(A) a non-insulated segment of wire coiled around the outside of the refractory insulation generally down the entire length of the catalyst insert, and
(B) an insulated segment of wire running generally back up along the entire length of the catalyst insert,
(v) a catalyst element wrapped around the refractory insulation such that the coiled wire is disposed between the refractory insulation and the catalyst element, the catalyst element being configured to facilitate a catalytic reaction,
(vi) front and end caps configured to secure components of the catalyst insert, the front cap comprising
(A) an opening for the central gas delivery tube, and
(B) an opening for one or more electrical connectors for the heating element;
(d) a vent apparatus connected to the tubular upper leg for venting gas byproducts of the catalytic reaction facilitated by the catalyst element;
(e) a temperature sensor configured to monitor a temperature proximate the catalyst element;
(f) a cover configured to generally cover the access opening of the tubular lower leg, the cover comprising
(i) a gas line opening having a gas line passing therethrough that is connected to the central gas delivery tube of the catalyst insert,
(ii) a sensor opening having a connecting wire for the temperature sensor passing therethrough,
(iii) one or more electrical openings having one or more electrical connectors for the heating element of the catalyst insert passing therethrough,
(iv) one or more airflow openings configured to provide air to sustain a catalytic reaction;
(g) an automatic shutoff valve configured to cease the flow of gas through the gas line based on the temperature sensor if a temperature drops below a first predetermined threshold;
(h) an initiation button configured to initiate a pre-heating process comprising
(i) providing power to the heating element,
(ii) automatically, based on a determination by the temperature sensor that a temperature proximate the catalyst element exceeds a second predetermined threshold,
(A) terminating the provision of power to the heating element, and
(B) opening the automatic shutoff valve allowing for the flow of gas through the gas line.

27 more elements

A method for heating a vessel, the method involving

(a) a tank containing, a fluid to be heated;
(b) an outer shell comprising
(i) a tubular upper leg,
(ii) a tubular lower leg disposed generally parallel to the tubular upper leg,
(iii) wherein the tubular lower leg is in fluid connection with the tubular upper leg proximate a first end of the tubular lower leg,
(iv) wherein the tubular lower leg comprises an access opening at a second end of the tubular lower leg providing access to an interior thereto;
(c) a catalyst insert disposed within the interior of the tubular lower leg, the catalyst insert comprising
(i) a central gas delivery tube comprising a plurality of openings disposed along its length for the outflow of gas from the gas delivery tube,
(ii) a generally cylindrical perforated core surrounding the central gas delivery tube, the perforated core comprising a plurality of openings for facilitating flow of gas through the perforated core,
(iii) refractory insulation wrapped around the outside of the perforated core,
(iv) a heating element comprising a wire including
(A) a non-insulated segment of wire coiled around the outside of the refractory insulation generally down the entire length of the catalyst insert, and
(B) an insulated segment of wire running generally back up along the entire length of the catalyst insert,
(v) a catalyst element wrapped around the refractory insulation such that the coiled wire is disposed between the refractory insulation and the catalyst element, the catalyst element being configured to facilitate a catalytic reaction,
(vi) front and end caps configured to secure components of the catalyst insert, the front cap comprising
(A) an opening for the central gas delivery tube, and
(B) an opening for one or more electrical connectors for the heating element;
(d) a vent apparatus connected to the tubular upper leg for venting gas byproducts of the catalytic reaction facilitated by the catalyst element;
(e) a temperature sensor configured to monitor a temperature proximate the catalyst element;
(f) a cover configured to generally cover the access opening of the tubular lower leg, the cover comprising
(i) a gas line opening having a gas line passing therethrough that is connected to the central gas delivery tube of the catalyst insert,
(ii) a sensor opening having a connecting wire for the temperature sensor passing therethrough,
(iii) one or more electrical openings having one or more electrical connectors for the heating element of the catalyst insert passing therethrough,
(iv) one or more airflow openings configured to provide air to sustain a catalytic reaction;
(g) an automatic shutoff valve configured to cease the flow of gas through the gas line based on the temperature sensor if a temperature drops below a first predetermined threshold;
and
(h) an initiation button configured to initiate a pre-heating process;
wherein the method comprises, in response to pressing of the initiation button by a user,
(I) providing power to the heating element,
(II) automatically, based on a determination by the temperature sensor that a temperature proximate the catalyst element exceeds a second predetermined threshold,
(a) terminating the provision of power to the heating element, and
(b) opening the automatic shutoff valve allowing for the flow of gas through the gas line.

29 more elements

A method for heating a vessel, the method involving

(a) a tank containing a fluid to be heated;
(b) an outer shell comprising
(i) a tubular upper leg,
(ii) a tubular lower leg disposed generally parallel to the tubular upper leg,
(iii) wherein the tubular lower leg is in fluid connection with the tubular upper leg proximate a first end of the tubular lower leg,
(iv) wherein the tubular lower leg comprises an access opening at a second end of the tubular lower leg providing access to an interior thereto;
(c) a catalyst insert disposed within the interior of the tubular lower leg, the catalyst insert comprising
(i) a central gas delivery tube comprising a plurality of openings disposed along its length for the outflow of gas from the gas delivery tube,
(ii) a generally cylindrical perforated core surrounding the central gas delivery tube, the perforated core comprising a plurality of openings for facilitating flow of gas through the perforated core,
(iii) refractory insulation wrapped around the outside of the perforated core,
(iv) a heating element comprising a wire including
(A) a non-insulated segment of wire coiled around the outside of the refractory insulation generally down the entire length of the catalyst insert, and
(B) an insulated segment of wire running generally back up along the entire length of the catalyst insert,
(v) a catalyst element wrapped around the refractory insulation such that the coiled wire is disposed between the refractory insulation and the catalyst element, the catalyst element being configured to facilitate a catalytic reaction,
(vi) front and end caps configured to secure components of the catalyst insert, the front cap comprising
(A) an opening for the central gas delivery tube, and
(B) an opening for one or more electrical connectors for the heating element;
(d) a vent apparatus connected to the tubular upper leg for venting gas byproducts of the catalytic reaction facilitated by the catalyst element;
(e) a temperature sensor configured to monitor a temperature proximate the catalyst element,
(f) a cover configured to generally cover the access opening of the tubular lower leg, the cover comprising
(i) a gas line opening having a gas line passing therethrough that is connected to the central gas delivery tube of the catalyst insert,
(ii) a sensor opening having a connecting wire for the temperature sensor passing therethrough,
(iii) one or more electrical openings having one or more electrical connectors for the heating element of the catalyst insert passing therethrough,
(iv) one or more airflow openings configured to provide air to sustain a catalytic reaction;
(g) an automatic shutoff valve;
and
(h) an initiation button configured to initiate a pre-heating process;
wherein the method comprises, when gas is flowing through the gas line to the gas delivery tube of the catalyst insert, in response to a determination by the temperature sensor that a temperature proximate the catalyst element has dropped below a first predetermined threshold, automatically closing the automatic shutoff valve to stop flow of the gas to the gas delivery tube of the catalyst element.

25 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/990,675Filed 27 May 2018

Priority

7 May 2015

Published

27 Dec 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

F24H 1/0045
Using fluid fuel: with catalytic combustion
F23C 3/002
Combustion apparatus characterised by the shape of the combustion chamber: the chamber having an elongated tubular form, e.g. for a radiant tube
F23C 3/004
Combustion apparatus characterised by the shape of the combustion chamber: the chamber being arranged for submerged combustion
F23C 13/00
Apparatus in which combustion takes place in the presence of catalytic material

Family

Application62/158,116Us provisional application · filed 7 May 2015

Application15/148,418Continuation · filed 6 May 2016

Application15/990,675Continuation

US 10,900,690 B2Related patent

US 2016/0327309 A1Published application

US 9,982,910 B2Related patent

US 2018/0372373 A1This patent

From the US filing history. Foreign family members aren’t listed.

Abstract

Claims25

Dependent claims

1-3. (canceled)

A system for heating a vessel comprising:

(a) a tank containing a fluid to be heated;
(b) an outer shell comprising
(i) a tubular upper leg,
(ii) a tubular lower leg disposed generally parallel to the tubular upper leg,
(iii) wherein the tubular lower leg is in fluid connection with the tubular upper leg proximate a first end of the tubular lower leg,
(iv) wherein the tubular lower leg comprises an access opening at a second end of the tubular lower leg providing access to an interior thereto;
(c) a catalyst insert disposed within the interior of the tubular lower leg, the catalyst insert comprising
(i) a central gas delivery tube comprising a plurality of openings disposed along its length for the outflow of gas from the gas delivery tube,
(ii) a generally cylindrical perforated core surrounding the central gas delivery tube, the perforated core comprising a plurality of openings for facilitating flow of gas through the perforated core,
(iii) refractory insulation wrapped around the outside of the perforated core,
(iv) a heating element comprising a wire including
(A) a non-insulated segment of wire coiled around the outside of the refractory insulation generally down the entire length of the catalyst insert, and
(B) an insulated segment of wire running generally back up along the entire length of the catalyst insert,
(v) a catalyst element wrapped around the refractory insulation such that the coiled wire is disposed between the refractory insulation and the catalyst element, the catalyst element being configured to facilitate a catalytic reaction,
(vi) front and end caps configured to secure components of the catalyst insert, the front cap comprising
(A) an opening for the central gas delivery tube, and
(B) an opening for one or more electrical connectors for the heating element;
(d) a vent apparatus connected to the tubular upper leg for venting gas byproducts of the catalytic reaction facilitated by the catalyst element;
(e) a temperature sensor configured to monitor a temperature proximate the catalyst element;
(f) a cover configured to generally cover the access opening of the tubular lower leg, the cover comprising
(i) a gas line opening having a gas line passing therethrough that is connected to the central gas delivery tube of the catalyst insert,
(ii) a sensor opening having a connecting wire for the temperature sensor passing therethrough,
(iii) one or more electrical openings having one or more electrical connectors for the heating element of the catalyst insert passing therethrough,
(iv) one or more airflow openings configured to provide air to sustain a catalytic reaction;
(g) an automatic shutoff valve configured to cease the flow of gas through the gas line based on the temperature sensor if a temperature drops below a first predetermined threshold;
(h) an initiation button configured to initiate a pre-heating process comprising
(i) providing power to the heating element,
(ii) automatically, based on a determination by the temperature sensor that a temperature proximate the catalyst element exceeds a second predetermined threshold,
(A) terminating the provision of power to the heating element, and
(B) opening the automatic shutoff valve allowing for the flow of gas through the gas line.

27 more elements

A method for heating a vessel, the method involving

(a) a tank containing, a fluid to be heated;
(b) an outer shell comprising
(i) a tubular upper leg,
(ii) a tubular lower leg disposed generally parallel to the tubular upper leg,
(iii) wherein the tubular lower leg is in fluid connection with the tubular upper leg proximate a first end of the tubular lower leg,
(iv) wherein the tubular lower leg comprises an access opening at a second end of the tubular lower leg providing access to an interior thereto;
(c) a catalyst insert disposed within the interior of the tubular lower leg, the catalyst insert comprising
(i) a central gas delivery tube comprising a plurality of openings disposed along its length for the outflow of gas from the gas delivery tube,
(ii) a generally cylindrical perforated core surrounding the central gas delivery tube, the perforated core comprising a plurality of openings for facilitating flow of gas through the perforated core,
(iii) refractory insulation wrapped around the outside of the perforated core,
(iv) a heating element comprising a wire including
(A) a non-insulated segment of wire coiled around the outside of the refractory insulation generally down the entire length of the catalyst insert, and
(B) an insulated segment of wire running generally back up along the entire length of the catalyst insert,
(v) a catalyst element wrapped around the refractory insulation such that the coiled wire is disposed between the refractory insulation and the catalyst element, the catalyst element being configured to facilitate a catalytic reaction,
(vi) front and end caps configured to secure components of the catalyst insert, the front cap comprising
(A) an opening for the central gas delivery tube, and
(B) an opening for one or more electrical connectors for the heating element;
(d) a vent apparatus connected to the tubular upper leg for venting gas byproducts of the catalytic reaction facilitated by the catalyst element;
(e) a temperature sensor configured to monitor a temperature proximate the catalyst element;
(f) a cover configured to generally cover the access opening of the tubular lower leg, the cover comprising
(i) a gas line opening having a gas line passing therethrough that is connected to the central gas delivery tube of the catalyst insert,
(ii) a sensor opening having a connecting wire for the temperature sensor passing therethrough,
(iii) one or more electrical openings having one or more electrical connectors for the heating element of the catalyst insert passing therethrough,
(iv) one or more airflow openings configured to provide air to sustain a catalytic reaction;
(g) an automatic shutoff valve configured to cease the flow of gas through the gas line based on the temperature sensor if a temperature drops below a first predetermined threshold;
and
(h) an initiation button configured to initiate a pre-heating process;
wherein the method comprises, in response to pressing of the initiation button by a user,
(I) providing power to the heating element,
(II) automatically, based on a determination by the temperature sensor that a temperature proximate the catalyst element exceeds a second predetermined threshold,
(a) terminating the provision of power to the heating element, and
(b) opening the automatic shutoff valve allowing for the flow of gas through the gas line.

29 more elements

A method for heating a vessel, the method involving

(a) a tank containing a fluid to be heated;
(b) an outer shell comprising
(i) a tubular upper leg,
(ii) a tubular lower leg disposed generally parallel to the tubular upper leg,
(iii) wherein the tubular lower leg is in fluid connection with the tubular upper leg proximate a first end of the tubular lower leg,
(iv) wherein the tubular lower leg comprises an access opening at a second end of the tubular lower leg providing access to an interior thereto;
(c) a catalyst insert disposed within the interior of the tubular lower leg, the catalyst insert comprising
(i) a central gas delivery tube comprising a plurality of openings disposed along its length for the outflow of gas from the gas delivery tube,
(ii) a generally cylindrical perforated core surrounding the central gas delivery tube, the perforated core comprising a plurality of openings for facilitating flow of gas through the perforated core,
(iii) refractory insulation wrapped around the outside of the perforated core,
(iv) a heating element comprising a wire including
(A) a non-insulated segment of wire coiled around the outside of the refractory insulation generally down the entire length of the catalyst insert, and
(B) an insulated segment of wire running generally back up along the entire length of the catalyst insert,
(v) a catalyst element wrapped around the refractory insulation such that the coiled wire is disposed between the refractory insulation and the catalyst element, the catalyst element being configured to facilitate a catalytic reaction,
(vi) front and end caps configured to secure components of the catalyst insert, the front cap comprising
(A) an opening for the central gas delivery tube, and
(B) an opening for one or more electrical connectors for the heating element;
(d) a vent apparatus connected to the tubular upper leg for venting gas byproducts of the catalytic reaction facilitated by the catalyst element;
(e) a temperature sensor configured to monitor a temperature proximate the catalyst element,
(f) a cover configured to generally cover the access opening of the tubular lower leg, the cover comprising
(i) a gas line opening having a gas line passing therethrough that is connected to the central gas delivery tube of the catalyst insert,
(ii) a sensor opening having a connecting wire for the temperature sensor passing therethrough,
(iii) one or more electrical openings having one or more electrical connectors for the heating element of the catalyst insert passing therethrough,
(iv) one or more airflow openings configured to provide air to sustain a catalytic reaction;
(g) an automatic shutoff valve;
and
(h) an initiation button configured to initiate a pre-heating process;
wherein the method comprises, when gas is flowing through the gas line to the gas delivery tube of the catalyst insert, in response to a determination by the temperature sensor that a temperature proximate the catalyst element has dropped below a first predetermined threshold, automatically closing the automatic shutoff valve to stop flow of the gas to the gas delivery tube of the catalyst element.

25 more elements

Dependencies are inferred from the claim text.

Internal tank heating coil

Life of this patent

Abstract

Claims25

Internal tank heating coil

Life of this patent

Abstract

Claims25