18results about "Flash steam boilers" patented technology

The invention relates to a process for degassing water used in steam production, the process comprising: (a) heating a feed water stream (9) to a temperature in a range from 60 to 95 °C in a first heat exchanger (11) and feeding the heated feed water stream (9) into a degassing apparatus (13), which is operated at a pressure of 0.15 to 0.8 bar(abs), so that a part of the feed water stream evaporates due to expansion when entering the degassing apparatus or feeding a feed water stream (9) into a degassing apparatus (13), which is operated at a pressure of 0.15 to 0.8 bar(abs) and in which the feed water is heated to a temperature in a range from 60 to 95 °C, so that a part of the water evaporates; (b) withdrawing a gas stream (15) and a degassed water stream (21) from the degassing apparatus (13); (c) optionally compressing the degassed water stream (21) to a pressure in a range from 0.25 to 30 bar(abs).

The invention relates to a device for generating steam, comprising a heat source (17) for heating water, a first flash device (1) in which water heated by transferring heat from the heat source (17) is partly evaporated, and at least one compressor (23) having at least one compression stage (25.1,25.2) for compressing steam, the compressor being connected to a steam chamber in the first flash device (1) via a first steam line (21). A second flash device (9) is included which is connected to the first flash device (1) via a first connecting line (7) and a second connecting line (13) in such a way that non-evaporated water is conducted from the first flash device (1) into the second flash device (9) through the first connecting line (7) and non-evaporated water is conducted from the second flash device (9) into the first flash device (1) via the second connecting line (13), the second connecting line (13) being equipped with the heat source (17) and a pump (15) by means of which the pressure of the water can be increased. A second steam line (27) branches off from the second flash device (9) and opens into the first steam line (21) upstream of the at least one compressor (23), and at least one compensation compressor (29) is provided in the second steam line (27). The invention also relates to a method for generating steam in such a device.

The present application relates to steam heat pump unit technical field, especially to a kind of latent heat separation heating high-efficiency steam heat pump unit and control method thereof, including steam generation system, refrigerant circulation system, circulating heating system, water supply preheating system and electrical control system, condensing component includes sensible heat condenser and latent heat condenser, sensible heat condenser and latent heat condenser are connected in series, first regulating valve is equipped on the refrigerant pipeline connected between sensible heat condenser and latent heat condenser, adopt innovative sensible heat and latent heat accurate separation, refrigerant step-by-step recovery mode, respectively through high-grade sensible heat and low-grade latent heat to hot water heating, to obtain the highest hot water temperature with the lowest condensing temperature, substantially improve the energy efficiency ratio of heat pump unit, and can be step-by-step recovery to refrigerant, reduce energy consumption while making refrigerant compressor operate in lower condensing temperature environment, substantially improve the reliability of heat pump unit.

A steam generator for a fuel cell system comprises: a heat exchanger (34) with at least one internal heat exchange surface, a water inlet pipe (46), and a dripper (52) having a flow channel fluidly connected to the water inlet pipe (46). The dripper (52) extends inside the heat exchanger (52) and above the heat exchange surface for supplying water downward to the heat exchange surface for conversion into steam. The dripper (52) has outlet orifices (56) spaced apart along the flow channel, and between adjacent outlets (orifices 56), the dripper has a stepped profile at least on its underside to prevent droplet coalescence from adjacent orifices. The fuel inlet pipe may have a section coaxially mounted with a portion of the water inlet pipe (46). This section of the fuel inlet pipe may surround that portion of the water inlet pipe. In a fuel cell system with a steam generator, the steam generator may include a fuel inlet pipe and combined steam and fuel outlets, as well as a reformer directly or indirectly connected downstream of the steam generator.

A process for generating process steam (3) using condensate (4) recycled in the form of feedwater (11) is described and illustrated. In order to achieve higher efficiency with the process, it is provided that the process steam (3) is supplied to a consumer device (V) to form a condensate (4) by at least partial condensation of the process steam (3), that the condensate (4) from the consumer device (V) is fed to a feedwater treatment plant (7) for treatment, that feedwater (11) from the feedwater treatment plant (7) is separated in a flash tank (12) into a vapor phase (13) and a liquid phase (14), that the liquid phase (14) of the feedwater (11) is evaporated in an evaporator (19) to form raw steam (21), and that the vapor phase (13) of the feedwater (11) and the raw steam (21) are compressed in at least one compressor (15) to form process steam (3).

The present invention relates to an energy conversion system comprising a thermoreactor (25) for exothermic reaction processes, in particular a regenerative thermoreactor (25), in particular a thermal exhaust air treatment plant (2), having a reaction chamber (25f), and comprising an energy conversion device (1). The energy conversion device (1) comprises a working medium circuit for transporting thermal energy, a working medium heater (3) and a evaporation device (4), arranged downstream of the working medium heater (3), for isenthalpic evaporation. The working medium heater (3) is arranged within the reaction chamber (25f) of the thermoreactor (25).

The utility model relates to the technical field of boiler equipment, and discloses an annular pipe straight-flow type natural gas boiler which comprises a machine shell, an inner container assembly, a natural gas burner, a water supply assembly, a water inlet assembly and an energy saver, the inner container assembly, the natural gas burner, the water supply assembly, the water inlet assembly and the energy saver are arranged in the machine shell side by side in a horizontal mode, and the natural gas burner is arranged on the inner container assembly. The water supply assembly is communicated with the inner container assembly and the energy saver, and the water inlet assembly is used for injecting softened water into the energy saver. Softened water in the energy saver is heated through smoke generated by combustion of the natural gas combustion machine, the heated softened water enters the inner container assembly and is further heated and vaporized through the natural gas combustion machine to form water vapor, and the whole process is energy-saving and environment-friendly. And the inner container assembly, the energy saver and the natural gas burner are all installed in the shell, the size and the occupied area of the whole machine are reduced, and transportation is more convenient.

The invention relates to a process for producing steam, comprising: (a) heating a feed water stream (1) in a first heat exchanger (3) to a temperature in a range from 40 to 95 °C; (b) heating the feed water stream (1) in a second heat exchanger (5) to a temperature in a range from 90 to 115 °C; (c) feeding the heated feed water stream into an apparatus for thermal degassing (7), which is operated at a boiling temperature in a range from 90 to 115 °C, thereby obtaining a gas stream (35) and a degassed water stream (9); (d) optionally compressing the degassed water stream (9) to a pressure in a range from 0.9 to 20 bar(abs); (e) feeding the degassed water stream into a flash apparatus (13), in which the degassed water stream is expanded to a pressure in a range from 0.04 to 0.8 bar(abs), so that a part of the water evaporates to form steam (21), or evaporating the degassed water in an evaporator (47); (f) preferably compressing the steam (21) in at least one compressor with at least one compressor stage (23, 25).

To provide a steam generator for generating steam in a stable and highly responsive manner while using a low temperature heat source having a temperature a little higher than a boiling point.SOLUTION: The steam generator includes a spray evaporation section having a first flow path where fluid is distributed, and a structure arranged in the first fluid path, a fluid spraying section having a second flow path arranged on the upstream side of the first flow path, and a spraying part formed in the second flow path to make the cross section area of part of the second flow path smaller than the cross section area of the first flow path, and a heating section for heating fluid distributed in the first flow path and in the second flow path.SELECTED DRAWING: Figure 1

The invention relates to a process for producing process steam, comprising: (a) providing steam (9; 35, 55) having a pressure in a range from 50 to 150 mbar(abs); (b) compressing the steam (9; 35, 55) in a first compression step to obtain pre-compressed steam (19) having a pressure in a range from 75 to 500 bar(abs); (c) compressing the pre-compressed steam (19) in a second compression step to obtain process steam (23) having a pressure in a range from 0.9 to 10 bar(abs), wherein the first compression step is carried out in an axial compressor (17) or in at least two compressors or blowers (57.1, 57.2, 57.3, 57.4), which are arranged in parallel, and the second compression step is carried out in a geared turbo compressor (21) comprising a plurality of compressor stages (21.1, 21.2, 21.3, 21.4, 21.5, 21.6).

The present invention relates to a process for evaporating H2O, the process involving (i) providing a flash column; (ii) providing an H2O-containing stream, wherein the H2O-containing stream has a pressure in the range of 0.5 to 100 bara and a temperature which is in a range of 3 to 30 K higher than the vapor-liquid equilibrium temperature of H2O at the pressure in the flash column; (iii) introducing the H2O-containing stream into the flash column according to (i), wherein the flash column has a pressure in the range of 0.05 to 0.5 bara, to obtain a gaseous H2O-containing stream and a liquid H2O-containing stream. It has been found that, surprisingly, the process according to the invention makes it possible to efficiently evaporate H2O, which saves energy. This process can accordingly be employed wherever H2O-containing streams are produced and steam is required.

Cogeneration boiler comprises an external jacket, boiler / domestic water inlet and outlet stub pipes, an internal jacket with a layer of thermal insulation encased inside of which there is a combustion chamber with an evaporator placed therein, where the outlet of the evaporator is linked to the inlet of a turbogenerator, and where the said combustion chamber features a lid with an opening for the burner and is linked to the flue gas pipes of the boiler water / domestic water heater fitted with a flue gas outlet stub pipe. Between the internal jacket (21) of the combustion chamber (A) and the external jacket (18) of the boiler there is a chamber (B) with a condenser (2) placed therein, the inlet (10) of which is linked to the outlet of the said turbogenerator, while its outlet (9) is linked to the inlet (11) of the evaporator (1) via a pump, and where the flue gas pipes (5) of the said boiler water / domestic water heater are placed in the water chamber (C) of the heater and on the one end are fixed in the sieve bottom (16) of the combustion chamber (A) and on the other end in the sieve bottom (17) of the said boiler water / domestic water heater, and where the said water chamber (C) of the boiler water / domestic water heater is linked to the chamber (B) in which the condenser (2) is placed.

The invention relates to an apparatus for utilising waste heat, comprising at least one heat exchanger (3) for transferring heat from a process to a heat transfer medium, a first container (7) for storing the heat transfer medium at a first temperature, and a second container (13) for storing the heat transfer medium at a second temperature, wherein the first temperature is higher than the second temperature, wherein the heat exchanger is accommodated in a first line (5), which connects the second container to the first container, and an expansion member (11) is accommodated in a second line (9), which connects the first container (7) to the second container (13), wherein a pump is also accommodated in the first line (5), with which liquid can be compressed and pumped from the second container (13) into the first container (7), and the second container (13) comprises a vapour line (15) for vapour extraction. The invention further relates to a method for utilising waste heat with such an apparatus.

A steam generator for a fuel cell system having a heat exchanger (34) with at least one internal heat exchange surface, a water inflow pipe (46), a dripper head (52) with a flow passageway fluidly connected to the water inflow pipe (46). The dripper head (52) extends inside the heat exchanger (52) above the heat exchange surface for feeding water down onto the heat exchange surface for conversion into steam. The dripper head (52) has outlet holes (56) spaced along the flow passageway and between adjacent outlet (holes 56) the dripper head has a stepped profile on at least its underside to prevent droplets from adjacent holes coalescing. A fuel inflow pipe can have a section mounted coaxially to a part of the water inflow pipe (46). The fuel inflow pipe's section can surround the water inflow pipe's part. In a fuel cell system with a steam generator, the steam generator can include the fuel inflow pipe and a combined steam and fuel outlet and a reformer directly or indirectly connected downstream of the steam generator.

The present invention relates to an energy conversion system comprising a thermoreactor (25) for exothermic reaction processes, in particular a regenerative thermoreactor (25), in particular a thermal exhaust air treatment plant (2), having a reaction chamber (25f), and comprising an energy conversion device (1). The energy conversion device (1) comprises a working medium circuit for transporting thermal energy, a working medium heater (3) and a evaporation device (4), arranged downstream of the working medium heater (3), for isenthalpic evaporation. The working medium heater (3) is arranged within the reaction chamber (25f) of the thermoreactor (25).

The present invention provides a steam generator using oxygen-hydrogen combustion, which cools the combustor liner with a gas-phase cooling medium, eliminates heat loss due to the gas-phase cooling medium, and achieves high evaporation efficiency of water injected into the combustor liner. [Solution] The steam generator 1 of the embodiment includes a primary burner 10 to which hydrogen, oxygen necessary for the complete combustion of the hydrogen, and excess oxygen are supplied; a main burner 30 which is provided in a burner casing 32 and burns hydrogen and oxygen, a liner cooling passage 34 formed between the burner casing 32 and the combustor liner 33 and flows exhaust gas containing excess oxygen from the combustor liner 11 along the combustor liner 33; a fuel supply unit 35 that supplies hydrogen into the combustor liner 33; an oxidizer supply unit 36 ​​that supplies exhaust gas that has passed through the liner cooling passage 34 into the combustor liner 33; and a water injection unit 37 that injects water into the combustor liner 33.

To provide a steam generating device that can be downsized while securing a wide evaporating liquid surface, and a steam generating system comprising the steam generating device.SOLUTION: A steam generating device according to an embodiment generates steam by boiling feedwater with a heating medium as a heat source. The steam generating device comprises: a container comprising a feedwater inflow part through which the feedwater flows in, and a steam outflow part through which the steam flows out; and a plurality of evaporator units arranged in the container, and for generating the steam by boiling the feedwater. The evaporator units each comprise: an evaporator tab for storing the feedwater, and of which an upper part is opened; and a heater for heating the feedwater in the evaporator tab with a heating medium.SELECTED DRAWING: Figure 2