31results about How to "Increase temperature rating" patented technology

An exhaust cleaning device includes a NOx storage reduction catalyst storing NOx when an air-fuel ratio of an inflowing exhaust gas is lean and releasing the stored NOx when the air-fuel ratio of the inflowing exhaust gas is rich; an air-fuel ratio changing unit; a reducing agent supplying unit which adds a reducing agent to the NOx storage reduction catalyst; a temperature detection unit which detects a temperature of the NOx storage reduction catalyst; a poisoning recovery timing judging unit which judges a timing for executing a SOx poisoning recovery process of releasing SOx from the NOx storage reduction catalyst; and a control unit.

The invention provides an IE-grade KI-type cable insulation material for nuclear power. A compound flame-retardant system, a plastic modifier and an irradiation resistant additive are compounded, mixed together and modified to prepare the IE-grade KI-type cable insulation material with long service life and irradiation resistance, which are required by a nuclear power station, and the property ofthe IE grade and KI part cable insulation material meets the related requirement of the IEEE383-2003 standard.

An electronic device with cooling of a heat dissipation source, by a liquid metals spreader, the device including at least one heat dissipation source, at least one spreader through which at least one liquid metal circulation channel passes forming a loop routed below a heat dissipation source, at least one heat sink, and at least one electromagnetic pump moving the liquid metal in the at least one channel such that the liquid metal absorbs heat dissipated by a heat dissipation source and transports the absorbed heat to be evacuated by the heat sink. Each spreader includes at least two plates made of an electrical insulating material located on each side of at least one bar made of deformable material.

The invention provides a nuclear power 1E-level K3-type thermal shrinkage material and a preparation process. Prepared polyolefin resin, flame retardant, antioxidizer, thermal stabilizer and modifying agent are led into and mixed in an internal mixer; after polyolefine is melted, plastic processing aid is added, and masterbatch of the 1 E degree K3 thermal shrinkage material can be obtained after the operation of mixing is carried out; and after being pressed into pieces by an oil hydraulic press or being extruded by an extruding machine, the masterbatch is irradiated by an electron accelerator so as to obtain the 1E-level K3-type thermal shrinkage material. The coordination effect of nitrogen-containing flame retardant, halogen-free flame retardant aluminium hydroxide and magnesium hydroxide system is utilized to improve the flame retardant property and the temperature-resistance property; and the selected plastic modifying agent, i.e. ethylene propylene terpolymer rubber, silicon rubber, and thermal stabilizer, i.e. methyl tin mercaptide, are respectively conducive to improving temperature grade of the system, thereby meeting the higher requirement of enabling the service life to reach 40 years at the temperature of 90 DEG C under the circumstance that the system keeps other properties at an excellent state.

The chiller includes a semi-cylindrical tank (36) that conforms to the perimeter of its auger (38) SO that the water can be raised to a water level (68) high above the auger shaft (44). Streams of water (84) are directed from the pulling side (80) across the lower portion of the tank beneath the auger shaft (44) to the dead side 82 of the tank at intervals along the tank so as to disperse the lower portion of the masses (23) of buoyant birds (22) from the more crowded pulling side (80) of the tank, beneath the auger shaft (44) toward the more vacant dead side (82) of the tank, thereby distributing the products more evenly throughout the tank and causing more water turbulence in the tank, thereby increasing the rate of heat transfer from the birds and avoiding having the birds cross over the auger shaft moving backward in chiller into a following flight of the auger.

The invention discloses a moon base energy supply system and method based on compressed carbon dioxide energy storage. The system employs a compressed carbon dioxide energy storage technology to achieve the high-capacity and high-density storage of excess electric energy of a photovoltaic system during strong illumination in the month day, and the high-power, stable and controllable release of the surplus electric energy in the month night, solar eclipse and insufficient illumination periods. Meanwhile, parts required by the energy storage system are compact in structure, small in size and light in weight. A solar photo-thermal device is introduced, so that the temperature grade of the heat storage subsystem can be further improved, the storage capacity of the system is further improved, the operation cycle of the energy supply system is prolonged, and stable energy supply of the lunar base is guaranteed. Meanwhile, due to the fact that a heat storage subsystem exists in the system, a moon base heat management system can be developed in the later period, and heat and power cogeneration is achieved. The system and the method have important scientific significance and engineering application value in the aspects of promoting the development of a space energy technology, accelerating the construction of a moon base and the like.

The invention discloses low temperature-resistant plastic used for power cables and a manufacture method thereof. The low temperature-resistant plastic used for the power cables is manufactured from the following components in percentage by weight; 50.7 parts of polyvinyl chloride resin powder, 10.4 parts of calcium carbonate, 2.3 parts of non-toxic calcium zinc stabilizers, 2.0 parts of antimony trioxide, 0.1 part of polystyrene propylene additives, 28.5 parts of polyester plasticizers, 5.0 parts of dioctyl diacid and 1. 0 part of soybean oil. The invention adopts the formula to prepare the PVC type plastic used for the power cables, which is resistant to the lower temperature of minus 50 DEG C PVC. Compared with the power cable resistant to minus 30 DEG C and the like of other formulas, the power cable made from the plastic of the invention has the advantages of stronger cold resistance, higher temperature class and wider application place range. Compared with other power cables made of materials such as TPE (Thermoplastic Elastomer) and TPU (Thermoplastic Polyurethane) and the like, the power cable made from the plastic has the advantages of no need of special processing equipment, no change of related manufacturing and processing methods, no need of new plant equipment, simple processing technology and lower cost, and can be directly produced and processed on the traditional mechanicla equipment.

An electric power control device for a vehicle which is configured to receive direct current which is supplied from a charging device outside the vehicle and includes an electric storage device configured to be charged by the direct current includes an electronic control unit configured to: acquire maximum output information of the charging device; while the electric storage device is charged by the direct current supplied from the charging device, execute a current limiting process in which the direct current becomes lower than a predetermined value when a parameter relevant to a temperature of a current-carrying component and a threshold of the parameter satisfy a predetermined condition, the current-carrying component being a component in which the direct current flows through; and set the threshold based on the maximum output information of the charging device.

A system and method for controlling an engine in a vehicle to facilitate heat transfer to a passenger compartment is provided. A number of conditions are examined, and if it is found that one or more of these conditions matches a corresponding predetermined condition, the spark timing of the engine is retarded. In addition, a charge motion control valve is opened, thereby increasing the amount, and reducing the turbulence, of the air entering the engine. This facilitates hotter combustion within the engine, and therefore faster heat transfer to the vehicle passenger compartment.

The invention belongs to a servo motor driving circuit, and specifically discloses a 5KW-level permanent magnet synchronous motor driving circuit based on an MOSFET. The output end of a power circuit is communicated with the input ends of an EMI filtering circuit and a busbar surge absorption circuit respectively; the output end of the EMI filtering circuit is communicated with the input end of a power conversion circuit; the output end of the power conversion circuit is communicated with the power input end of a driving circuit; the control signal input end of the driving circuit is communicated with the output end of a DSP control module; the output end of the driving circuit is communicated with the input end of a three-phase full-bridge circuit; the output end of the three-phase full-bridge circuit is communicated with the input end of a current detection circuit; the output end of the current detection circuit is communicated with the input end of a control permanent magnet synchronous motor; the feedback end of a current detection circuit is communicated with the feedback end of the DSP control module; the output end of the busbar surge absorption circuit is communicated with the input end of the three-phase full-bridge circuit. The 5KW-level permanent magnet synchronous motor driving circuit has the advantages of high-power density, high integration degree and high reliability.

The invention relates to a single-end electric heating tube structure with the double insulation protection function and a manufacturing method of the single-end electric heating tube structure with the double insulation protection function. The single-end electric heating tube with the double insulation protection function comprises an outer tube and an inner assembly part, wherein the inner assembly part comprises two inner tube assemblies, terminals, an inner sleeve, an outer sleeve, a fuse protector and a temperature controller, each inner tube assembly comprises an inner tube, an upper guide-out rod, a lower guide-out rod, a resistance wire, an inner plug and magnesia powder, the upper guide-out rods, the resistance wires and the lower guide-out rods which are all connected well are inserted in the inner tubes so that the inner tube assemblies can be formed, one terminal is connected with one end of the temperature controller, the other end of the temperature controller is connected with the lower guide-out rod of the second inner tube assembly, a protecting middle piece is sleeved with the outer sleeve, and thus the inner assembly part can be formed. The single-end electric heating tube structure has the double insulation protection function and solves the problem that two resistance wires intertwine, cost is saved, the service life of a heater is prolonged, and the temperature resistance level of the product is increased.

A moisturizing pad has a heat generating element sandwiched between first and second surface sheets. The heat generating element contains metal powders, salt, water and water retaining materials adapted to generate oxidation heat and thereby to convert the water to moisture vapor as the element is supplied with oxygen through an air-permeable first surface sheet. The salt and water are provided in a form of saline solution having a salt concentration of 18-22% by weight and the heat generating element is impregnated with such a saline solution in a range of 17.5 to 26% by weight of the element.

The invention discloses a combined heat exchange system, and belongs to the technical field of high-temperature heat recovery systems. The combined heat exchange system comprises a shell, one end of the shell is provided with a high-temperature medium inlet, the other end of the shell is provided with a high-temperature medium outlet, a heat exchange pipe bundle is arranged in the shell, a steam pocket communicated with the heat exchange pipe bundle through a pipeline is arranged outside the shell, and the pipeline comprises a descending pipe communicated between the steam pocket and a heat exchange pipe bundle inlet and an ascending pipe communicated between a heat exchange pipe bundle outlet and the steam pocket. When a high-temperature medium flows in the shell, the heat exchange pipe bundle is communicated with the steam pocket to form natural circulation, a cooling medium in the heat exchange pipe bundle takes away a part of heat of the high-temperature medium, so that heat energy of the high-temperature medium is used fully, the flowing distance and the flowing resistance of the high-temperature medium are reduced, and pressure drop losses of the high-temperature medium are also reduced; in addition, due to the fact that the heat exchange pipe bundle is arranged in the shell, the heat exchange pipe bundle can expand freely, and the safety problem of cracking of the heat exchange system is avoided.

A method of controlling an ACV to increase a rate of temperature increase of exhaust gas and prevent excessive oil consumption may include a closing step of closing the ACV using a controller when regeneration of an exhaust gas after-treatment device is required, and an adjusting step of opening or closing the ACV using the controller in accordance with whether the pressure in an intake manifold is positive pressure or negative pressure.