Abstract:
A thermal-energy storage tank (1) comprising a containing structure (2) designed to house a store of thermovector fluid in the liquid state, a regenerating circuit (6) designed to draw the thermovector fluid from a bottom of the containing structure (2) and, once heated outside the tank, to deposit it in a surface portion of the store of thermovector fluid, at least one steam generator (13) comprising a heat exchanger (14, 16b) with vertical extension housed within the containing structure (2) and having at least one top opening (18) designed for inlet of the thermovector fluid and a bottom opening designed for outlet of the thermovector fluid (15).
Abstract:
The invention relates to a forced-flow steam generator for using steam temperatures of above 650°C. Said forced-flow steam generator (1) comprises a combustion chamber (2) and a waste gas flue (3) connected to the upper end thereof, and peripheral walls (4) surrounding said flue. Said walls (4) are formed from tubular walls (5), the tubes thereof guiding the water/steam working medium. The combustion chamber (2) comprises at least one burner (6), and downstream heating surfaces (7) are arranged in the waste gas flue (3). Part of the peripheral walls (4) is covered in the region of the combustion chamber (2) by at least one bulkhead heating surface (8), the size of which on the surface side being determined such that the heat absorption of the peripheral walls (4) and therefore the temperature thereof are reduced to a value enabling the formation of the peripheral walls (4) from modified, heat-resistant 2.25-2.5% chrome steel that does not require any heat aftertreatment following the welding treatment thereof.
Abstract:
Disclosed is a heat transfer medium having high heat transfer rate, being useful in even wider fields, simple in structure, easy to made, environmentally sound, and capable of rapidly conducting heat and preserving heat in a highly efficient manner. Further disclosed are a heat transfer surface and a heat transfer element utilizing the heat transfer medium. Further disclosed are applications of the heat transfer element.
Abstract:
Heat recovery steam generator comprises a casing, low-pressure evaporator coils, preheater booster coils upstream thereof and feedwater heater coils downstream thereof, a water-to-water heat exchanger having low and high temperature paths; a first conduit from the preheater to the high-temperature path, and a second conduit from the feedwater heater to the preheater. A conduit can extend from feedwater heater to low-pressure evaporator. A conduit can extend from the water-to-water heat exchanger to the feedwater heater. High-pressure economizer coils can be upstream of the preheater, with a conduit exiting the feedwater heater to the high-pressure economizer. Additional coils can be upstream of the high-pressure economizer. The feedwater heater can comprise first and second sections, or first, second and third sections; or more sections. The connections among the various components and sections can be near their upstream and downstream faces.
Abstract:
The present invention relates to a new technology for producing cooled flat walls (1) for combustion chambers. The flat wall according to the present invention comprises at least two flat sheets (2a, 2b) parallel to each other and connected to each other at the lower edges by at least one feeding manifold (4b), at the upper edges by at least one collecting manifold (5b), at the side edges by vertical manifolds (7a, 7b) adapted to convey the fluid entering in said feeding manifold (4b) or exiting from said collecting manifold (4b) (5b). With the flat wall according to the present invention it is possible to obtain multiple advantages, above all linked to lower production and maintenance costs with respect to membrane walls of conventional type.
Abstract:
A thermal-energy storage tank (1) comprising a containing structure (2) designed to house a store of thermovector fluid in the liquid state, a regenerating circuit (6) designed to draw the thermovector fluid from a bottom of the containing structure (2) and, once heated outside the tank, to deposit it in a surface portion of the store of thermovector fluid, at least one steam generator (13) comprising a heat exchanger (14, 16b) with vertical extension housed within the containing structure (2) and having at least one top opening (18) designed for inlet of the thermovector fluid and a bottom opening designed for outlet of the thermovector fluid (15).
Abstract:
The invention relates to a waste heat steam generator (1) having a plurality of evaporator tubes (4) which are connected in parallel on the flow medium side, a plurality of overheating tubes (26) being mounted downstream of the evaporator tubes by means of a water separation system. Said water separation system comprises a number of water separating elements (12), each water separation element being respectively mounted downstream of a plurality of evaporator tubes (4) and/or upstream of a plurality of overheating tubes (26). Each water separating element (12) comprises an inlet pipe (14) which is respectively connected upstream to the evaporator tubes (4), said inlet pipe extending into a water evacuation pipe when seen in the longitudinal direction. A plurality of outflow pipes (18) branch off in the transitional area, said pipes being connected to a inlet collector (28) of the overheating tubes (26) which are respectively connected downstream. The aim of the invention is to provide said type of waste heat steam generator which is characterised in that it has a particularly high level of operational flexibility with comparatively low construction and reparation complexity. As a result, a distribution element (34) is arranged on the steam side between the respective water separating element (12) and the inlet collector (28).