95 results about "Oxygen mixture" patented technology

The invention relates to a facility for producing liquid CO2 and biomethane, comprising: —a unit for producing biogas; —at least one unit for the membrane separation of biogas to produce biomethane and a gaseous mixture M1 mainly comprising carbon dioxide; —a unit for cryogenically distilling the gaseous mixture M1 to produce liquid CO2 and a gaseous mixture M2 comprising carbon dioxide, methane, oxygen and hydrogen; —one or more membranes located in the flow of the gaseous mixture M2 to separate the methane from the oxygen-hydrogen mixture

The utility model relates to the technical field of ventilation treatment, and discloses an oxygen mixing treatment system which comprises an oxygen generator (1), an oxygen storage tank (2) and ventilation treatment equipment (3), and the oxygen storage tank (2) and the ventilation treatment equipment (3) are respectively connected with an oxygen outlet of the oxygen generator (1), so that an air-oxygen mixture can be conveyed to a patient (4) through the ventilation treatment equipment (3). And when the patient (4) exhales, oxygen generated by the oxygen generator (1) is stored in the oxygen storage tank (2). According to the oxygen mixing treatment system, the oxygen storage tank is connected to the oxygen outlet of the oxygen generator, when a patient inhales, a warm and humid air and oxygen mixture can be conveyed through the ventilation treatment equipment, when the patient exhales, oxygen generated by the oxygen generator is stored in the oxygen storage tank, and the stored oxygen can be conveyed to the patient together with the patient when the patient inhales; the oxygen flow supplied to a patient is increased, and the treatment effect is improved.

The invention relates to a method for calibrating a flame monitoring device (10), in which a fuel is supplied to a burner device (12) to generate a flame (14) and in which an ambient air flow (16) is supplied to the burner device (12) to generate a fuel-oxygen mixture, wherein a combustion maximum (20) of the flame (14) is exceeded in at least one calibration step (18). It is proposed that a rich fuel-oxygen mixture is generated in the at least one calibration step (18) for a pulse duration (44) of less than 5 s.

The invention relates to the field of water purification, namely to methods and devices for water purification using the ultrafiltration method and is intended primarily for purifying water with organic contaminants. The method of purifying water with organic impurities by ultrafiltration consists of preliminary preparation of water for ultrafiltration, which consists of ozonation and mixing by recirculation in a contact container, as well as in the process of ultrafiltration itself utilizing membranes. In the near-membrane space of the ultrafiltration device there is formed a high-speed gas-liquid regime with a water-bubble flow flowing around the membrane surface. Wherein, water supplied to the ultrafiltration device is carried out simultaneously with the supply of ozone-air or ozone-oxygen mixture through at least one water-jet ejector. A second recirculation cycle is organized through the ultrafiltration device into the contact container and again into the ultrafiltration device. In the near-membrane space of the ultrafiltration device there is formed a high-speed gas-liquid regime with a water-bubble flow flowing around the membrane surface. Wherein the water flow through the water-jet ejector is set in the range from 0.5 to 45 m3 / h, the ozone mixture flow is in the range from 0.3 to 30 m3 / h, and pressure in the ejector discharge line is in the range from 0.2 to 1.6 MPa. The method is carried out using a system including an ozonation device, a contact tank, a recirculation line and an ultrafiltration device itself. At least one water-jet ejector is provided at the inlet to the ultrafiltration device, wherein the working diameter of the suction nozzle relates to the working diameter of the discharge line nozzle in the values between 0.35 and 1.0.

This utility model discloses an oxygen denitrification treatment device for aquaculture water, including a treatment tank. The treatment tank is equipped with a filtration zone, an aerobic biological zone, an anoxic biological zone, and a degassing zone. The filtration zone is filled with quartz sand filter media. The aerobic biological zone contains biological packing material and has a jet aeration ring on its outer wall, which is connected to an ozone-oxygen mixture generator. The anoxic biological zone is filled with porous ceramsite packing material. The degassing zone has a guide plate inside. In this utility model, the aquaculture water can be filtered for suspended particulate matter through the quartz sand filter media. The jet aeration ring can introduce ozone-oxygen mixture gas, which, together with the honeycomb biological packing material, can complete ammonia nitrogen oxidation. The denitrifying bacteria on the surface of the porous ceramsite packing material can convert nitrates into nitrogen gas. Finally, the gas is separated by the guide plate, and the purified water can be discharged from the outlet. Thus, through the above structure, efficient denitrification, oxygenation, and purification of aquaculture water can be achieved, improving water quality treatment efficiency and stability.

The invention discloses application of a cobalt-based catalyst in preparation of ethylene by photocatalytic ethane dehydrogenation with participation of lattice oxygen, the cobalt-based catalyst is Co3O4 with a spinel structure, and due to the coexistence characteristic of Co < 2 + > / Co < 3 + > in the structure and the migration ability of the lattice oxygen, the cobalt-based catalyst can be used as a photocatalyst and an oxygen storage tank; therefore, under the environment-friendly and low-energy-consumption photocatalytic reaction condition, lattice oxygen can be used as a mild oxidizing agent for high-selectivity photocatalytic ethane dehydrogenation to prepare ethylene. Direct participation of oxygen molecules is avoided through utilization of lattice oxygen in the catalyst, generation of COx by-products caused by excessive oxidation can be prevented, ethylene selectivity is improved, the lattice oxygen consumed in the catalyst after the reaction can be regenerated through reaction with air or oxygen, the safety problem that ethane and oxygen are mixed and combustible is solved, and the catalyst is suitable for industrial production. And the feasible photocatalytic oxidation-reduction cycle is realized.

The invention relates to medicine, in particular to gerontology and therapy and can be used for treating sarcopenia in elderly patients.Summary of the invention consists in alternating for 1…2 days the intravenous administration of ozonized 0.9% NaCl solution and major autohemotherapy, namely 500 mL of a 0.9% NaCl solution ozonized with an ozone-oxygen mixture, with an ozone concentration of 5…10 µg / mL, are administered, and major autohemotherapy consists in collecting 300…400 mL of venous blood from the patient, which is ozonized, with an ozone concentration of 15 µg / mL and transfused to the patient, the treatment course includes 8…10 consecutive procedures, then it is extended with minor autohemotherapy, which consists in collecting 5…10 mL of venous blood, which is ozonized, with an ozone concentration of 15 µg / mL and administered intramuscularly every 10th day of alternation and includes 3 consecutive procedures, and the ozonized 0.9% NaCl solution is administered for up to 6…8 weeks.

FIELD: neurology; psychiatry.SUBSTANCE: used as a non-pharmacological therapy for autism spectrum disorders in children. The method includes a set of procedures: interval hypoxic-hyperoxic training (HHT), hyperbaric oxygenation and ozone therapy. HHT consists of alternating inhalations of a hypoxic mixture with an oxygen content of 9 to 16 vol.% and a hyperoxic mixture with an oxygen content of 32 to 40 vol.% for a total duration of 45-50 minutes under the control of cardiovascular system parameters. Hyperbaric oxygenation is performed in a pressure chamber under a pressure of 1.3 atmospheres of 100% oxygen mixture, flow of 10 liters per minute, for 45 minutes using a mask. Ozone therapy is performed by rectal insufflation with an ozone-oxygen mixture with an ozone concentration of 85 μg / ml in a volume of 20–30 ml or by intravenous administration of a physiological solution enriched with ozone with an ozone concentration of 85 μg / ml at a rate of 200 ml per 100 ml of physiological solution. The procedures are carried out daily for 12 days.EFFECT: method is effective and has a positive impact on the patient’s condition.1 cl, 1 dwg, 3 ex

The invention provides a zero-emission power circulation and fuel gas supply system and method for an LNG power-driven ship. The system comprises an internal combustion engine, a nitrogen membrane separation device, a heat regenerator, a water separator, a liquid CO2 storage tank, a liquid oxygen pump, an LNG pump, an LNG storage tank, a liquid oxygen storage tank, a CO2 condenser, a circulation compressor, a gas buffer tank, a CO2 separator, a first-stage water cooler and a second-stage intermediate heat exchanger. According to the internal combustion engine, LNG serves as fuel, an argon and oxygen mixture serves as a circulating working medium to replace air and natural gas to be combusted and push a piston to move, water vapor and gas CO2 in waste gas generated by the internal combustion engine are condensed and separated after being subjected to stepped cooling, and CO2 is liquefied through a circulating compressor and recycled to a liquid CO2 storage tank. According to the invention, argon is used for replacing air to realize waste heat recovery of the internal combustion engine, so that the energy efficiency of the system is improved, and meanwhile, CO2 capture and zero emission of gaseous pollutants are realized.

The invention discloses a mirror polishing technology for manufacturing an acetylene mixer based on a cracking device, and relates to the technical field of acetylene preparation and purification equipment, metal mirror polishing treatment is carried out on the surface, making contact with high-speed mixed gas, in a jet mixer of an acetylene cracking furnace; the mixer comprises a natural gas annular flow channel, a central oxygen nozzle, a mixing cavity and a diffusion section, the inner surface of the acetylene mixer of the cracking device is subjected to metal mirror polishing, and it is detected by a white light interferometer that the height of weld beading is gt; 1 mm is reduced to be less than or equal to 0.1 mm; the surface roughness is reduced to 0.08 to 0.16 [mu] m from 3.2 to 6.3 [mu] m; a friction energy test shows that the friction energy of the polished high-speed mixed gas flow is 0.08-0.09 mJ and is lower than the minimum ignition energy of an acetylene-oxygen mixture.

This invention discloses a process for producing dilute nitric acid using a tail gas oxygenation cycle, belonging to the field of nitric acid preparation. First, the nitrogen-oxygen ratio is controlled to heat the nitrogen-oxygen mixture before it enters an ammonia mixer. The mixture undergoes ammonia oxidation in an oxidation furnace to produce NO. After recovering heat through a waste heat boiler, economizer, and demineralized water preheater, the mixture is cooled by a rapid cooler and then enters a dilute acid separator. The condensed dilute acid from the bottom of the separator is transported to an oxidation absorption tower. At the bottom of the oxidation absorption tower, NO is further oxidized to NO2 in the mixed gas. The remaining NO at the bottom of the oxidation absorption tower... x The mixed gas enters the upper part of the oxidation absorption tower through a baffle plate, where oxidation and absorption occur simultaneously. In the lower part of the absorption section, 55-60% dilute nitric acid is formed and flows to the upper part of the bleaching tower. After treatment in the bleaching tower, the finished acid flows out. The tail gas from the top of the oxidation absorption tower is pressurized by a booster and then enters an oxygen mixer for recycling. This invention solves the problem of tail gas pollution in nitric acid production, with low investment costs, high finished acid concentration, and low energy consumption.

A method and apparatus for diffusing a dopant within a semiconductor device is described. The method includes performing a dynamic surface anneal in which a substrate is placed inside of a process volume with a mixture of an inert gas and a small amount of oxygen gas. The surface of the substrate is then exposed to one or more rapid laser pulses. The rapid laser bursts diffuse dopant from a doped layer into the substrate. The doped layer is formed during a previous process operation. The temperature and number of laser pulses control the amount of diffusion of the dopant into the substrate. Other dynamic surface anneal operations may be optionally performed before or after the oxygenated dynamic surface anneal operation.

The utility model discloses a dry-type anti-backfire device for hydrogen-oxygen mixed gas, which relates to the technical field of anti-backfire devices and comprises a shell, a cover body is in threaded connection with the inside of the shell, a fire stopping sheet is placed in the shell, a first sealing ring matched with the fire stopping sheet for use is placed in the shell, and a second sealing ring matched with the fire stopping sheet for use is placed in the shell. The surface of the shell communicates with a sleeve, and the interior of the sleeve is slidably connected with a piston rod. According to the anti-backfire device, the fire stopping sheet is mounted in the shell, so that after the anti-backfire device is mounted at one end, far away from an external pipeline, of a pipeline in equipment through the air inlet connector and the pipeline in the equipment is subjected to backfire, flames can be effectively blocked after passing through the fire stopping sheet, and the flames are prevented from entering the hydrogen-oxygen generator; the anti-backfire device can effectively protect the interior of equipment, and the whole anti-backfire device is simple in structure and small in size, can be installed in the equipment for the last fire prevention work of the equipment, and improves the practicability.

The present invention relates to a device (1) for improving fuel combustion efficiency, the device comprising a tank (2) with a KOH solution in distilled water mountable on a car, an electrolytic cell (3) arranged inside said tank (2) and fixed to a lower base (24) of said tank (2) through fixing means (35) and adapted to produce a gaseous mixture of hydrogen and oxygen by electrolytic decomposition of the distilled water present in said tank (2), said electrolytic cell (3) comprising electrical connection means adapted to connect said electrolytic cell (3) to an alternator of said car, said electrolytic cell (3) comprising a casing, said casing comprising a lower portion (31), an upper portion (32), lateral portions (36), at least one opening positioned on said upper portion (32) for the exit of said gaseous mixture and a plurality of electrolytic plates (34), said electrolytic plates (34) being arranged vertically and parallel to each other, thus defining a plurality of spaces (37), connections for supplying the gaseous mixture of hydrogen and oxygen, produced by said electrolytic cell (3), to an intake manifold of said car, characterised in that said electrolytic cell (3) comprises at least one hole (33) positioned on said lower portion (31) in each space (37) of said plurality of spaces (37) between said electrolytic plates (34).

The invention provides an argon circulation hydrogen fuel engine and a control method thereof.The control method comprises the steps that according to the rotating speed of a rotating speed sensor connected to a crankshaft of the engine, the operation working condition of the engine is judged; according to the operation working conditions, the flow of argon-oxygen mixed gas supplied to a combustion chamber of the engine, the concentration of oxygen in inlet gas and the concentration of hydrogen in the inlet gas are adjusted; according to the pressure, detected by the pressure sensor, in the combustion chamber, the knock index in the combustion chamber is determined; and the water spraying amount in the combustion chamber is adjusted according to the knock index.

The present invention relates to a low-loss MnZn ferrite material for 500kHz and a preparation method thereof. The method comprises the following steps: (1) adding MnZn ferrite particles and CaTiO3 powder to ethanol, stirring for 1.5 to 2.5 hours in a water bath at 45 to 55°C, and drying to obtain a mixed powder; (2) pressing the mixed powder into a magnetic ring, keeping the temperature at 1100 to 1200°C in a nitrogen-oxygen mixture for 45 to 75 minutes, and then cooling to 180 to 220°C to obtain a low-loss MnZn ferrite material for 500kHz. In the preparation method provided by the present invention, CaTiO3 is used as an auxiliary component to modify the MnZn ferrite, thereby increasing the magnetic permeability and improving the temperature coefficient of magnetic permeability, reducing eddy current loss and hysteresis loss, and achieving a minimum loss of 128mW·cm at 500kHz and room temperature. ‑3 Compared with the conventional MnZn ferrite material without adding CaTiO3, the loss is reduced by 42.1%, which greatly reduces the use loss of MnZn ferrite material and improves the performance of MnZn ferrite material.

The invention belongs to the technical field of gas proportion evaluation of a submersible gas cylinder, and relates to a non-contact rapid evaluation method for a residual gas mixing state of the submersible gas cylinder, which comprises the following steps of: transmitting sound waves with continuous change frequency through a sound wave transmitter to penetrate through residual gas on the wall of the submersible gas cylinder and inside the submersible gas cylinder, acquiring a signal by a receiver and calculating a time difference so as to obtain an original sound velocity value; meanwhile, the surface temperature and pressure data of the gas cylinder are collected for physically correcting the sound velocity and eliminating the influence of environmental factors to obtain a standardized sound velocity value, then the sound wave signal is filtered, the amplitude attenuation spectrum and the phase deviation spectrum are calculated, the minimum attenuation frequency and the maximum phase difference are extracted, and the standardized sound velocity value is combined to obtain the sound velocity value of the gas cylinder. According to the method, the trained inversion model is called, the gas grouping proportion is predicted, air exhausting or sensor dismounting is not needed, efficiency and safety are improved, cost is reduced, meanwhile, accurate evaluation of the proportion of helium in the helium-oxygen mixed gas cylinder is ensured, and the safety of divers is guaranteed.

A device designed to apply a concentration of negative ions in the surrounding breathing air-oxygen mixture to the entire human body, additionally equipped with colored light sources, designed to apply the ions to the human body in combination with electromagnetic radiation from the light spectrum, wherein the light spectrum has the wavelength range of colored light, the colored light sources are designed to utilize several wavelengths of visible colored light in order to direct the effect of the negative ions specifically to particular metabolic processes, wherein the light spectrum of the colored light sources has a wavelength range of 630 nm to 780 nm and a wavelength range of 420 nm to 480 nm.

The present invention relates to a face mask (also called full face) for respiratory therapy, in particular for non-invasive mechanical ventilation, with a low value of CO2 rebreathing. The mask according to the invention is of the type comprising a shaped shell (11) configured so as to cover at least the mouth, the nose and the eyes of a patient when the mask is worn, and is characterised in that it comprises, on said shaped shell (11) an inlet fitting (17) for the connection to a pipe through which a ventilation apparatus supplies the mask with a mixture of air and oxygen, and an outlet fitting (15), separate from said inlet fitting (17), for the discharge of air exhaled by the patient. With this arrangement, the mask according to the invention allows drastically reducing the phenomenon of carbon dioxide rebreathing, very harmful for the patient subjected to ventilation.

This invention is about a hydrogen-generating device, with low energy consumption and high electrode durability, for diesel cycle engines. The hydrogen-generating device includes an electrolysis cell made of aluminum, containing heat exchanger fins on the outside, an electrolytic solution, two electrodes; a hydrogen transport system to be injected into the engine's air intake system; electronic module for direct voltage control, used in electrolysis, of the electrode polarity alternation time, of the volume of hydrogen in a mixture of constant hydrogen / oxygen composition to be injected into the engine in a variable manner, thus injecting a quantity of up to 10% of the hydrogen:oxygen mixture, in the ratio of 65:35, per liter of diesel consumed, in a volume / volume ratio.

1. Name of the product in this design: Multipurpose oxygen concentrator. 2. Application of this design: This design is used to produce oxygen or an air-oxygen mixture and to monitor specific gas content, temperature, humidity and other indicators in the environment in which it is used. 3. The key design features of this product are its overall shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the technical field of medical instruments, and discloses an anesthetic gas anti-inhalation device special for an anesthetist in an operating room, the anesthetic gas anti-inhalation device comprises a hard tube, a baffle is arranged in the hard tube, a sealing strip is fixedly connected to the outside of the baffle, the outside of the sealing strip is arranged in the hard tube, a first liquid inlet hole is formed in the hard tube, and a second liquid inlet hole is formed in the hard tube. The outside of the hard tube is fixedly connected with a branch tube, one end of the hard tube is fixedly connected with a main tube, one end of the main tube is fixedly connected with a mask, a blocking assembly is arranged in the hard tube, the outside of the blocking assembly is arranged outside the baffle, and the blocking assembly comprises a supporting frame. The air bag is extruded through a mixture of anesthetic gas and oxygen, so that the anti-inhalation effect is achieved, the air bag is naturally opened by means of gas pressure, spring pre-tightening force does not need to be overcome, the flow resistance coefficient is far lower than that of a traditional one-way valve, and the gas flow and concentration in a pipeline almost have no deviation from a set value of an anesthesia machine.

The invention relates to the field of water circulation, in particular to a water circulation system applied to long-time hydrogen energy storage, which comprises a pressurizing water catching unit for receiving environmental moisture; an airflow inlet of the deep dehydration unit is communicated with a gas outlet of the pressurized water catching unit; a liquid water inlet of the water purification treatment unit converges with a liquid water outlet of the pressurized water catching unit and a liquid water outlet of the deep dehydration unit; a pure water inlet of the hydrogen production purification unit is communicated with the water purification treatment unit. The device and the method have the beneficial effects that a water-oxygen mixture and a water-hydrogen mixture in the electrolytic hydrogen production process are recovered by capturing environmental moisture, and wet air and hydrogen side exhaust gas generated by hydrogen fuel cell power generation are subjected to cooling separation and deep dehydration treatment, so that liquid water is converged into the raw material water tank and is purified; and long-time cyclic utilization of water resources in the hydrogen energy storage system is achieved, dependence on external water replenishing is remarkably reduced, and the system is suitable for remote unattended areas lacking of water resources.

The invention relates to a method for calibrating a flame monitoring device (10) for a burner device that can be operated at a predetermined power output, in which fuel is supplied to the burner device (12) to generate a flame (14) and in which an ambient air flow (16) is supplied to the burner device (12) to generate a fuel-oxygen mixture, wherein in at least one calibration step (38, 40) a combustion maximum (20) of the flame (14) is exceeded, in which a rich fuel-oxygen mixture is generated at least in the calibration step (38, 40) for a predetermined calibration duration (84) and / or a pulse duration (44). A change in power output during calibration, limited over a predetermined duration (82), is proposed.The invention also relates to a burner device (12) which is at least configured to calibrate the flame monitoring device (10) using the method according to one of claims 1-6.

The application relates to the technical field of gas mixing, and discloses a device and a method for preparing breathing helium-oxygen mixed gas, which comprises a tank body, an inner cylinder, a helium gas inlet element, an oxygen gas inlet element, a drainage channel and a flow control assembly. The helium gas inlet element and the oxygen gas inlet element are used for respectively draining the helium gas and the oxygen gas, so that the helium gas and the oxygen gas are preliminarily mixed in a large range in a primary mixing cavity. Under the control of the intermittent opening and closing of the channel mouth of the drainage channel by the flow control assembly, the preliminarily mixed helium-oxygen mixed gas enters a secondary mixing cavity in batches, and the mixing is further completed. The device realizes the preparation of the helium-oxygen mixed gas, improves the mixing effect, and guarantees the quality of the helium-oxygen mixed gas.

Invention provides a method of producing water with predetermined properties. The method consists of the steps of performing pretreatment of water, membrane filtration, producing a catholyte and an anolyte in an electrolyser, and mixing the catholyte and anolyte. The step of membrane filtration is performed in membrane filtration apparatuses. Purified water is supplied to the inlet compartment of the first membrane filtration apparatus using a water-jet ejector. An ozone-air or ozone-oxygen mixture is supplied through the ejector to ozonize the water. The catholyte is added to the step of the water pretreatment process until the pH value in the range from 8.0 to 11.0 is reached in the filtered water during the step of pretreatment in the first membrane filtration apparatus.

The invention relates to the field of smelting, in particular to a heating burner structure and a combustion control method, and discloses a heating burner structure and a combustion control method in order to solve the problems that most of existing melting furnaces, especially steel melting furnaces, are used for coking furnace melting and metal material melting, are low in heat efficiency and pollute the environment, and the heating burner structure comprises a combustion chamber and a mixing chamber connected with the combustion chamber, the mixing chamber is sequentially provided with a compressed air inlet pipe, an oxyhydrogen mixed air inlet pipe and a liquefied gas inlet pipe in the gas flow direction, the compressed air inlet pipe extends into the bottom of the mixing chamber, and the oxyhydrogen mixed air inlet pipe extends into one end of the mixing chamber and extends into the combustion chamber; compared with the prior art, the novel energy-saving gas stove has the advantages that new energy is fully utilized, the energy storage effect is achieved, combustion heat is high, products are free of pollution, environment-friendly equipment does not need to be additionally arranged in the production process, and the production and manufacturing cost is further reduced.

The present application belongs to the technical field of rubber vulcanization accelerator production, and relates to a novel environment-friendly process for synthesizing accelerator MBTS by oxidizing mixed gas of nitrogen oxide and oxygen. Dry MBT is put into water, wet grinding is performed by a wet grinding pump, and then the MBT is punched into a high-pressure kettle with a wind ring. Mixed gas generated by decomposition of concentrated nitric acid is punched into the high-pressure kettle, and the circulation is performed until the pressure in the high-pressure kettle is no longer reduced and the material reaches the end point. The material in the high-pressure kettle is filtered, left standing, drained, dehydrated and dried to obtain MBTS finished product and reaction liquid. The mixed gas and the reaction liquid are recycled. The present application is a novel environment-friendly process, which does not need to use metal catalyst and does not generate three wastes, has low production cost, and has a relatively broad industrial prospect. The reaction is sufficient, the product has high melting point, high purity and good quality.

The invention relates to a piston steam engine (1) having: at least one cylinder (10) which encloses a working chamber (15), a piston which can be moved back and forth in the working chamber (15) between a top dead center and a bottom dead center along a central axis of the cylinder, a steam chamber (76) for providing fresh steam, and an inlet valve (26) for controlling and / or regulating a fluid flow of the provided fresh steam, which functions as a working fluid of the piston steam engine, wherein the working chamber (15) is circumferentially enclosed by a working chamber wall (14) which is inserted into the cylinder (10) or is formed by same. The piston steam engine also has a hydrogen supply device (345) which is designed to introduce a specified quantity of hydrogen or a hydrogen-oxygen mixture into the working fluid and / or the residual steam of the piston steam engine in such a way that during the movement of the piston (30) from the top dead center (OT) to the bottom dead center (UT) or shortly before reaching the top dead center (OT), an explosive mixture, in particular a hydrogen-oxygen mixture, is provided, the (controlled) ignition of which can be used to increase the power output of the piston steam engine. The invention also relates to a combined heat and power plant comprising the steam engine (1), to a computer-implemented method for controlling and / or regulating a piston steam engine, to a computer program, and to a computer-readable storage medium.