363results about How to "Avoid heat exchange" patented technology

A system for generating hydrogen gas utilizes a volume exchange housing for the storage of a fuel material that reacts to generate hydrogen gas and a hydrogen separation chamber. The system includes a gas permeable membrane or membranes that allow hydrogen gas to pass through the membrane while preventing aqueous solutions from passing therethrough. The system is orientation independent. A throttle valve is also used to self regulate the reaction generating the hydrogen gas.

A thermoelectric generator is built into the wall of a heat exchanger by applying coatings of dielectric, electrical conductor and N-type and P-type thermoelectric materials. A tubular heat exchanger lends itself to the application of coatings in annular rings, providing ease of manufacture and a structure that is robust to damage.

A can (1) of which spout after opening can be securely resealed and can be opened and closed with an easy operation is provided. The can (1) has a spout (3) that is opened by lifting and pulling a pull-ring (6) fixed on a top wall (2) of a can body (1a) with a rivet (5) to bend a sealing tongue portion (4) toward the inside of the can. Inside the top wall (2) and away from the spout (3), an internal sealing member (7) having a fan shape with its pivot mounted to the rivet and a size capable of sealing the spout (3) is disposed to be fixed to the rivet (5). After opening the spout (3), by rotating the pull-ring (6) around the rivet (5), the internal sealing member (7) is also rotated at the same time. As an interlocking mechanism therefor, the rivet (5) is rotatably supported by the top wall (2), and a base end of the pull-ring (6) and the pivot of the internal sealing member (7) are fixed to the rivet (5), respectively.

Air cleaner including a case having an inlet and an outlet, a fan inside of the case, for drawing air through the inlet and discharging the air through the outlet, a filter assembly inside of the case for cleaning the air drawn into the case through the inlet, a heat exchanger inside of the case for heating or cooling the air drawn into the case, selectively, and a plurality of fins between the fan and the outlet for guiding the air drawn into the case to the outlet, thereby ventilating the room.

The invention provides a chilled water direct supply system and a method. The system comprises an energy center, a thermal exchange station and at least one secondary pump; wherein the energy center is connected with the thermal exchange station by a master water supply pipe and a master return pipe. The energy source center, which is composed of at least one refrigerator and at least one primary pump, is used for preparing the chilled water; the refrigerator is in series connection with the primary pump and is arranged between the master water supply pipe and the master return pump. The thermal exchange station, which is composed of at least one draught fan and at least one triplex pump, is used for consuming cooling capacity of the chilled water; the draught fan is in series connection with the triplex pump and is arranged between the master water supply pipe and the master return pipe. The secondary pump arranged on the master water supply pipe is used for transmitting the chilled water outputted from the energy center to the thermal exchange station. The invention has the advantages of low cost and energy loss rate as well as small occupied area.

The invention discloses a non-dynamic sealing quick open type test device of a material fatigue performance under a high-pressure hydrogen environment. The test device mainly comprises an environmental box module, an air source module, a supercharger, a vacuum pump, a heat transfer module and an industrial personal computer. The test device of the material fatigue performance under the high-pressure hydrogen environment can be realized without a dynamic sealing structure, especially, a high-cycle or high-frequency fatigue test under the high-pressure hydrogen environment can be realized, the quick opening and closing of the test device and the real-time monitoring of health conditions of equipment can be realized, and the test device has high-efficiency and safe high and low temperature test function.

An air conditioner (10) includes a refrigerant circuit (20) including a plurality of indoor heat exchangers (27). A controller (1) for controlling operation of the air conditioner (10) includes a change unit (5) configured to change a set temperature Tem to a value larger than a current value when the minimum target superheat degree SHsm of target superheat degrees SHs determined for the respective indoor heat exchangers (27) is higher than a predetermined value SHt.

The invention provides a power generation system for waste heat of medium and low temperature flue gas with cylinder organic medium evaporation, and belongs to the technical field of energy and environment. The invention comprises a heat pipe system, a working medium circulation loop of organic Rankine cycle, a medium and low temperature flue gas exhausting pipeline, a heating hot water loop and a cooling water loop, wherein an ascending pipe and a descending pipe of a boiler are replaced by heat pipes, the flue gas heat exchanger and the boiler cylinder are an integrally cylindrical structure, and is separated to the upper boiler cylinder and the lower flue gas heat exchanger by two layers of insulation partition, the lower end of the heat pipe is arranged in flue gas heat exchanger, the upper end is arranged in the boiler barrel, toluene, dichlorotrifluoroethane, propane and pentafluoropropane are used as working medium, and 20% volume of the softening desalted water is used as the heat pipe working fluid. The invention has advantages of little space occupation, small heat exchange between heat pipe and air, high efficiency of heat exchange, convenient heat pipe replacement, being capable of avoiding the heat exchanger pipe corrosion and the working medium leakage and other advantages, and being capable of adjusting the exhaust regenerative heat of organic Rankine cycle according to the heating load demands.

The invention relates to a smoke insulation and heat insulation fresh air system capable of realizing a kitchen air conditioner environment. The smoke insulation and heat insulation fresh air system comprises an oven tool arranged on a hearth and a range hood arranged right above the hearth, wherein a flow guiding cover is arranged below the range hood, the oven tool is provided with an air curtain generator, and the air curtain generator comprises a frame type shell sleeved on the periphery of the oven tool; one side of the frame type shell is connected with an air inlet pipe which is communicated with the frame type shell, an air inlet of the water inlet pipe is provided with an air inlet machine and is communicated with exterior, and a gas channel is formed at an inner cavity of the frame type shell; and an upper panel of the frame type shell is provided with a flow guiding groove, the two sides of the flow guiding groove are provided with positioning side plates which are inwards inclined and are connected with the upper panel, and the flow guiding groove is internally provided with an ejector. The smoke insulation and heat insulation fresh air system provided by the invention realizes the insulation of indoor air in a kitchen and oil pumping smoke in the hearth, heat exchange and oil smoke diffusion caused by gas convection are avoided, a relatively sealed outer circulating system is formed between a gas oven tool and oil pumping smoke equipment, waste gas and oil smoke are discharged, and accessible insulation is realized, ventilation and oil smoke problems are completely solved, and the realization of the air-conditioned kitchen becomes possible.

A cogeneration system including an engine, a generator connected to an output shaft of the engine to generate electricity, and a waste heat recoverer to recover waste heat of the generator and to transfer the recovered waste heat to a heat consumer. Since waste heat of the generator is supplied to the heat consumer, the cogeneration system exhibits a high energy efficiency while achieving release of heat from the generator.

The invention discloses a heat-recovery vehicle air conditioner. The heat-recovery vehicle air conditioner comprises a circulation loop and a hot air core, wherein the circulation loop is formed by a compressor, a two-position four-way valve, a condenser, a throttling element and heat exchange equipment; the hot air core forms a fluid loop with a motor mechanism of a vehicle; the fluid loop formed by the hot air core and the motor comprises a fluid pump; and stop valves are arranged on both an inflow side and an outflow side of the hot air core. By using the heat-recovery vehicle air conditioner, when the vehicle stops transitorily, the hot air core is disconnected from the motor by closing the stop valves on the two sides of the hot air core so as to prevent the heat of the motor from entering the hot air core, and simultaneously prevent the cold energy of the hot air core from entering the motor. In addition, the hot air core is connected with an energy accumulator; when the air conditioner operates, excessive heat or cold energy are stored in the energy accumulator; when the air conditioner stops, the stop valves of the energy accumulator are closed to prevent heat exchange between the energy accumulator and the hot air core; when the air conditioner is restarted again, the heat exchange is performed between the energy accumulator and the hot air core to release the heat or the cold energy in the energy accumulator to the hot air core.

The invention discloses a test device for latent heat of a composite phase-change material. In the test device, a sample of the composite phase-change material is clamped by means of two plate heat-flow meters having equal area to form a sandwich structure. Two constant-temperature aluminum plates having larger area are respectively fixed to exteriors of the two plate heat-flow meters tightly. A groove can be formed in each constant-temperature aluminum plate to allow the plate heat-flow meter to be installed therein. Peripheries of the plate heat-flow meters and the sample are sealed by means of a heat preservation material to fix the plate heat-flow meters and the sample in the central zones of the constant-temperature aluminum plates. The temperature of the sample is accurately controlled through the constant-temperature aluminum plates. The temperature of the constant-temperature aluminum plates is accurately controlled through a constant-temperature device. The plate heat-flow meters detect the heat flow quantity in the sample during temperature increasing and temperature reducing, so that sensible heat and latent heat of the sample can be obtained by measuring absolute heat adsorbed by and released from the sample of the composite phase-change material in a series of small-range temperature increasing and temperature reducing processes through the plate heat-flow meters, and then simply calculating the detect results through a formula. The invention also discloses a test method for the latent heat of the composite phase-change material.

The invention discloses a P-N expanded reaction type flame retardant p-(carboxyphenyl-amino)-(carboxyphenyl-amidoethyl) phenylphosphine oxide and a preparation method thereof. The preparation method comprises the following steps: (a) adding a p-aminobenzoic acid solution into glacial acetic acid; (b) adding triethylamine and mixed solution obtained in the step (a) into a 2-carboxethylphenyl hypophosphorous acid solution, stirring at a high speed and reacting for 2 hours, raising the temperature to 80 DEG C, reacting for 4 hours, cooling, hydrolyzing, performing suction filtration, washing and drying to obtain white powder, namely the P-N expanded reaction type flame retardant. The defects that harmful gases are generated by general flame retardants, the environment is polluted, fuming is caused and the mechanical property is influenced are overcome, the P-N expanded reaction type flame retardant has double-carboxyl end groups, effective flame retardant components are bonded to a PA66 main chain, an inherently flame retardant effect is achieved, and the flame retardant has the advantages of harmlessness, smoke inhibition, high efficiency, environmental friendliness and the like.

The invention discloses a dynamic pressurized tempering furnace for tempering a saw blade matrix. The dynamic pressurized tempering furnace comprises a furnace body (1), a heating device (2) and a bearing platform (3), wherein the heating device (2) and the bearing platform (3) are both arranged in the furnace body (1); the inner wall of the furnace body (1) is provided with a fire protection layer (4); an oil cylinder (6) is vertical to the top of the furnace body (1) and is arranged in the furnace body (1); the bottom of a piston rod of the oil cylinder (6) is provided with a spherical boss (8); a pressure head (7) is internally provided with a spherical groove (9). The dynamic pressurized tempering furnace also comprises a controller, a display (10) and a temperature sensor (11), wherein the controller is connected with the oil cylinder (6) and the heating device (2). The dynamic pressurized tempering furnace is compact in structure, capable of automatically regulating the angle of the pressure head according to the planeness of a saw blade and convenient for workers to operate. After being subjected to thermal treatment by the dynamic pressurized tempering furnace, the saw blade matrix is uniform in crystalline phase tissue, small in internal residual stress and low in saw blade planeness less than 0.03mm.

A liquid-vapor separating method and a liquid-vapor separating type evaporator, the method includes the following steps: (i) provide a partition device (3) in the upper portion of the evaporated liquid pipe, the partition device (3) divides the evaporated liquid pipe into a superheating section (12) and an evaporating section (13); (ii) a liquid-vapor separating pipe (4) is connected to the superheating section (12) near the partition device (3), an evaporated liquid feeding pipe (6) is connected to the evaporating section (13) near the partition device (3), several vapor guiding pipes (5) are respectively provided in the pipe of the evaporating section (13), the vapor guiding pipes (5) are respectively connected with the liquid-vapor separating pipe (4); vapor inside the pipe can flow out, and is separated into vapor and liquid in the liquid-vapor separating pipe (4), then the vapor enters the superheating section (12) and is superheated; the superheated vapor is discharged from a vapor outlet (11); (iii) the residual liquid separated from the liquid-vapor separating pipe (4) and the residual liquid in evaporating section (13) are together sent to the evaporated liquid feeding pipe (6) through a return pipe (14), and back to the evaporating and heat-exchanging process of evaporated liquid.

The invention discloses a low-temperature adsorption denitration method for flue gas. The method comprises the following steps: the flue gas is subjected to dust removal and desulfurization, the desulfurized flue gas is pressurized, the pressurized flue gas is pre-cooled, the pre-cooled flue gas is cooled to a room temperature or below by using a flue gas cooling system, the flue gas with a temperature lower than the room temperature enters a low-temperature denitration system, physical adsorption denitration is performed in the low-temperature denitration system, the flue gas after denitration is used to pre-cool the flue gas after dust removal and desulfurization, and clean flue gas that absorbs heat enters a chimney to be discharged. The method uses the physical adsorption denitration,simultaneously directly adsorbs and removes NO2 and NO to realize direct NOx adsorption and removal, eliminates the use of a catalyst and reducing agent NH3 in a traditional SCR denitration process, eliminates secondary pollution emission of ammonia escape, and does not need a pre-process for oxidizing NO; the method has a high NOx removal rate, and can realize NOx zero emission; a large amount ofacidic condensate water is precipitated during the cooling of the flue gas, so that the water consumption in a power plant is reduced; and the method does not need to use chemicals such as a denitration catalyst, a reducing agent and an oxidant, thereby reducing the operating costs.

The invention concerns a heat transfer device comprising an insulating module (12) designed to be inserted between a first wall (14) and a second wall (16) to define a closed loop wherein flows a heating medium (FC) which comprises a first channel (28) extending substantially vertically along the first wall (14) and a second channel (30) extending substantially vertically along the second wall (16), the first channel and the second channel being mutually offset in the vertical direction to define a low channel and a high channel, as well as an upper channel (32) and a lower channel (34) linking the first channel and the second channel, such that heating medium (FC) flows freely or is blocked naturally in the loop when on the basis of the respective temperatures of the high channel and the low channel. The invention is particularly useful for heating or cooling buildings.

An improved solid fuel combustion apparatus intended for use in residential or light commercial settings capable of sustaining a controlled, continuous blue flame burn, resulting in high efficiency heat output with low emissions and low ash. The combustion apparatus is further capable of being thermostatically controlled, turning off combustion of the fuel when a desired temperature is reached and automatically re-igniting when more heat is called for, and also comprises improved safety features.

The invention relates to the technical field of smart home, and particularly relates to a remote-controlled drinking water robot based on a smart terminal. The drinking water robot comprises a water dispenser, a cloud server, and a smart terminal. The water dispenser is connected with the cloud server. The cloud server is connected with the smart terminal. The smart terminal is equipped with an APP of the water dispenser. Users can remotely control the water dispenser by operating the APP. The drinking water robot can bring great convenience to people's life, has strong practicability, and is suitable for popularization in the field.