US1004901A - Regenerator. - Google Patents

Description

s. G. POCHE'.

RBGENBRATOR.

APPLICATION FILED JAN. 25, 1911,

Patented 001;. 3, 1911.

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S. G. POCHE. REGENERATOR.' APPLICATION PILBD .11.11.25, 1911.

1,004,901 Patented out. s, 1911.

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SAMUEL GEORGE POCH, OF BELLEROSE, LOUISIANA.

REGENERATOR.

To all whom it 'may concern:

Be it known that I, SAMUEL GEORGE POCHE, a citizen of the United States, residing at Bellerose, in the parish of Assumption and State of Louisiana, have invented new and useful Improvements in Regenerators, of which the following is a specification.

This invention relates to a regenerator or heater for reheating the exhaust steam from steam power plants, and particularly to an ap oaratus of this character adapted espec1c ly for use in sugar refining plants for reheating the exhaust steam from the engines and utilizing the same over again as a power agent or employing it as a heating medium for boiling the juice, heating vacuum pans and performing other like operations.

The object of the invention is to provide a simple, reliable and effect-ive apparatus of this character which may be applied to any existing plant to reheat the exhaust steam from all the engines, and which will utilize, as the heating medium, the product-s of coniA bustion from the furnaces, which are usually7 allowed to go to waste, thus securing greater economy in the operation of such plants.

The invention consists of the features of construction, combination and arrangementof parts hereinafter fully described and claimed, reference being had to the accompanying drawings, in which Figure 1 is a vertical longitudinal section through a generator embodyingv my inven tion. Fig. 2 is a vertical transverse section on line 2 2 of Fig. l. Fig. 3 is a vert-ical transverse section on line 3-3 of Fig. 1.

Referring to the drawings, 1 designates the regenerator box or casing which is proJ vided with an inlet- 2 and an outlet 3 for the inflow and exhaust of the heated products of combustion or escaping gases of the furnaces of the plant. The inlet 2 is in the nature of apipe or conductor with which pipes leading from the chimneys of the furnaces are connected in any suitable manner, said inlet being provided with a controlling damper e1. The inlet 2 is located at the top of the rear portion of the casing l, while the outlet 3, which is provided with a controlling damper 5, is located at the bottom of the rear end of said casing 1.

The box or casing 1 is of proper dimensions to receive a secondary heater 6,v said heater consisting of a bank or coil of heat- Speeication of Letters Patent.

Application filed January 2 5, 1911.

Patented Oct. 3, 1911.

Serial No. 604,628.

ing tubes or pipes extending at an upward inclination from a point adjacent the rear wall of the heater to a point adjacent the front wall thereof. Midway of its length the casing 1 is sub-divided at its top by a partition 7 to provide circulating chambers or compartments S and 9, the lower end of said partition extending around t-he sides of the secondary heater 6, so as to cause the gases or products of combustion entering through the inlet 2 to first pass downwardly in the chamber 9 and through the upper frontends of the tubes 6, thence upwardly through the rear portions of the tubes 6 into the front portion of chamber S, and thence downwardly through the rear portion of the said chamber S to the outlet 3.

The inletend 10 of the secondary heater or coil is connected at one end with a steam supply pipe 11 leading from a manifold l2 with which are connected in practice the conducting pipes leading from the exhaust pipes of the engines or steam utilizing elements of the power plant, which exhaust steam is reheated by the regenerator for further use. Arranged in the upper portion of the pipe 10 is a valve 13 for cutting' ofi' the flow of steam from the manifold to the primary heater 6, and also arranged in said portion of the pipe is a separator let to separate the steam from the water of condensation. At t-he point where the lower end of the pipe 11 connects with the inlet 10, a coupling connection 15 is provided which forms a. trap into which the water of condensation collects and from which it may be discharged through a drain valve or cock 16. The said secondary heater 6 is supported wholly or in part by suitable headers 17 and 1S, the header 18 being ar ranged t-o form a baflie plate to cause the direct downflow of the products of combustion from the top to the bottom of the chamber 9, as well as to provide a passage 19 into which the carbon or other products liberated from the discharging gases and dropping into the casing may be collected or removed through a door 20.

Arranged within the top of the chamber above the upper portion of the primary heater 6 is a primary heater 21 supported by an extension from the header 18 and suitable brackets 22. This heater consists of a series of superimposed horizontal coils 23, of which any suitable number may be employed, said coils being supported within an open work frame 23 and partially separated by interposed battle plates 25 by which the products of combustion are caused to pass in a back and forth or zigzag path downwardly through the said primary heater before discharging entering the lower end of chamber 9, but are retarded suffi-- ciently in their flow so that a maximum amount of the heat units carried thereby will be extracted and absorbed by the coils 23. The inlet end of the lower coil 23 is connected with the outlet end 26 of the secondary heating coil (i, and the discharge end of the lower coil 23 is in turn connected with the inlet end of the coil next above it, and so on throughout the series, the outlet of the top coil 23 being connected with a discharge pipe 27 leading to the exterior through the top of the casing 1 and provided with a suitable controlling valve 28.

From the foregoing description, it will be understood that the waste steam exhausted from the various engines and other steam employing elements of the plant is conducted to the manifold 12 and passes first through the secondary heater 6 and then through the primary heater 21, and is heated to a high degree on its passage through said heaters, so that upon its discharge through the out-let pipe 27 it may be employed again as a motive fluid for engines or as a heating fluid for boiling the sap for heating vacuum and other pans and for performing various other heating operations in plants of the character described. By the construction and arrangement of the two heaters, it will be seen that the exhaust steam will be heated to a very high degree within a compact form of regenerator which may be arranged at a suitable point in the building of the plant and connected for use with any ordinary plant without modifications or changes in the construction thereof. It will also be seen that by utilizing the waste heat from furnaces of the plant, which heat is employed in the most effective manner, the steam may be heated without extra cost for fuel, thus securing greater economy in the operation of the plant.

By the described arrangement of the secondary heater, and its mode of construction, it will be seen that the steam will be subjected to the heat from the products of combustion at the point where said produc-ts are hottest, whereby increased efficiency is secured.

Having thus described the invention, what I cla-im as new, is

1. A regenerator comprising a casing having compartment-s communicating at their lower ends, a secondary heater extending l into both compartments for the circulation of a heating medium therethrough in a circuitous path, an inlet for heating fluid communicating with the top of one of said compartments, an out-let for the heating fluid leading from the base of the other compartment, a steam supply pipe communicating with the inlet end of said secondary heater, a primary heater communicating with the outlet end of the secondary heater and arranged between the same and the said outlet, said primary heater being provided with a discharge for the re-heated steam, and controlling devices arranged in the inlet and outlet and steam supply pipe.

2. A regt-znerator comprising a casing having a central partition in the upper portion thereof forming inlet and discharge chambers in communication at their lower ends, a flue communicating with the upper end of the inlet compartment for the supply of a fluid heating agentl thereto, a flue leading from the lower end of the discharge compartment for the outlet of said heating agent, a secondary heater comprising a coil extending below the partition into t-he two compartments, a valved steam supply pipe communicating with the inlet end of the heater within the discharge compartment, a primary heater arranged within the upper end of the inlet compartment and communicating with the discharge end of the primary heater, and a valvedoutlet leading from said primary heater.

3. A regenerator comprising a casing having a central partition in its upper portion forming inlet and discharge compartments in communication at their lower ends, an inlet flue communicating with the upper end of the inlet compartment, an outlet flue communicating with the lower end of the discharge compartment, a secondary heat-ing coil arranged below the partition and extending into the two compartments, a valved steam supply pipe connected with the inlet end of said coil within the outlet compartment, a primary heater comprising a series of superposed communicating coils arranged in the upper portion of the inlet compartment between the secondary heater and inlet flue and having its lower coil connected with the discharge end of said secondary heater, and a valved outlet leading to the exterior of the-casing from the outlet end of the upper coil of said primary heater. In testimony whereof I affix my signature in presence of two witnesses. P

SAMUEL GEORGE POCHE. lVitnesses z N. T. Ln BLANC, P. P. LANDRY.

Copies of this patent; may be obtained for five cents each, by addressing the Commissioner of Eatents,

Washington, D. C.

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