42results about How to "Small heat storage" patented technology

The invention relates to a deformation preventing device, in particular to a high and medium-temperature heat treatment deformation preventing device for large turbine blades. The device is characterized by being formed by assembling a casting support frame and supporting cushion blocks for supporting the casting support frame; the casting support frame is formed by assembling a U-shaped groove in the middle, groove walls on two sides of the U-shaped groove and a triangular side support which is fixed at each of two ends of the outer side of each groove wall; three cross beams with arc-shapedtops and different heights are fixed in the U-shaped groove at intervals; and two groove columns are fixed at each edge of the U-shaped groove. The device can make up the defects of the conventional blade heat treatment technology and prevent deformation of the blades in the heat treatment process according to the conventional heat treatment process mode, the characteristics of a trolley furnace and the overall dimension of the blades of different types.

The invention discloses a heat holding furnace for a drafting machine. The heat holding furnace comprises a shell, a furnace door, a furnace door lifting mechanism, a furnace lining, heat elements and a hot wind circulating system, wherein the furnace door is arranged on the shell and connected with the furnace door lifting mechanism; the furnace lining is fixed on the shell; a heat insulating layer is arranged on the furnace lining; the heat elements are arranged in the shell and positioned at two sides of a hearth; and the hot wind circulating system comprises a circulating fan and an air flue in the furnace, and the circulating fan blows the heat of the heat elements to a work area through the air flue in the furnace. The heat holding furnace has good heat and insulation effect, safety, reliability and long service life.

The invention discloses a method for producing ferrochrome nitride with microwave as a heat source, wherein 2.45GHz microwave is used as a heat source. The method comprises the steps of: preheating medium carbon ferrochrome particles, low carbon ferrochrome particles and micro carbon ferrochrome particles, with the granularity not larger than 10mm, for 2-2.5h in an atmosphere of 0.005-0.01MPa nitrogen to raise the room temperature to 900 DEG C, then keeping the temperature to be 900-1500 DEG C for nitriding reaction and sintering densification for 4-6h, and cooling to obtain the ferrochrome nitride with the content of 3-6wt%. The microwave nitrification method for synthesizing the ferrochrome nitride favorably solves the problems of high power consumption, long smelting time, uneven material temperature field, poor product appearance quality and the like in the traditional method for smelting the ferrochrome nitride.

The invention discloses a refractory castable for an incinerator, which comprises the following raw materials in percentage by weight: 40-50% of silicon carbide particles and fine powder, 5-10% of corundum particles and fine powder, 3-7% of aluminate cement, 2-4% of silicon micro powder, 1-5% of silicon nitride, 1-5% of boron carbide, 15-20% of magnesium-containing material, 5-10% of alumina micro powder and 0.1-0.2% of organic fiber. The refractory castable disclosed by the invention has the beneficial effects of high strength and good abrasion resistance, good volume stability and acid-base resistance, good thermal shock stability and good erosion resistance.

The invention discloses an impregnation method for manufacturing carbon fiber hard composite felt. The method comprises the following steps: preparing an impregnating agent, completely soaking a carbon fiber soft felt into the impregnating agent, and drying the impregnated carbon fiber soft felt by an industrial spin-drying machine. According to the method provided by the invention, the carbon fiber soft felt is completely soaked by the appropriate impregnating agent, so that resin can fully penetrate into the soft felt, and the overall strength and mechanical processing performance of a finished product are obviously improved. According to the carbon fiber hard composite felt prepared by adopting the process, resin in large pores is thrown out by the spin-drying machine, and the resin only adheres to carbon fiber filaments and in small pores, so that the density of the finished product is uniform. The process provided by the invention is very simple, the product quality can be obviously improved by skillfully combining resin solution impregnation and a spin-drying process, and after spin-drying with the industrial spin-drying machine, excess resin can be recycled, and the cost canbe effectively reduced.

The invention provides a valley electricity application control device and method based on phase change energy storage. More than one heat storage floor is arranged in a heat supply area, and phase change heat storage bricks and carbon fiber heating modules in the heat storage floors are arranged to be separable and combinable. A temperature master control device determines the accurate heat storage time according to infrared data, pressure data, video data and other data in the heat supply area, the phase change heat storage bricks and the carbon fiber heating modules are separated after heat storage is finished, heat storage is stopped, accurate control over the heat storage time is achieved, and the power consumption in the off-peak period of electricity utilization is reduced. In the peak period of power utilization, heat stored by the heat storage floors is used for supplying heat, the temperature master control device judges whether the heat supply area is a vacant area or an active area, and after heat storage time or heat storage capacity is reached in the vacant area, the phase change heat storage bricks and the carbon fiber heating modules are separated, heat storage is stopped, heat consumption is reduced, heat storage time is shortened, accurate control and distribution of heat storage and heat supply electric power are achieved, and electric energy is further saved.

The invention discloses a high-temperature carburizing multi-purpose furnace by adopting a composite furnace liner structure. The high-temperature carburizing multi-purpose furnace comprises a furnace door, a furnace shell, a hearth, a shell seat, a furnace interior guide rail and furnace bottom supporting bricks, wherein the furnace door is arranged on one side of the hearth; the hollow hearth is encircled by the furnace shell; the furnace shell is supported by the shell seat; the furnace interior guide rail is arranged above the furnace bottom supporting bricks. The high-temperature carburizing multi-purpose furnace also comprises a high-temperature fan, an air inlet pipe, an impervious brick and refractory fiber layer and a heating element, wherein the high-temperature fan is arranged above the furnace shell and extends into the hearth; the air inlet pipe penetrates through the furnace shell, and outside air can be introduced to balance the air pressure in the furnace; the impervious brick and refractory fiber layer is formed in a built hearth in a circular structure; the heating element penetrates through the furnace shell and extends to the bottom of the hearth. According to the high-temperature carburizing multi-purpose furnace, the heat storage capacity of equipment is reduced, the thermal load of equipment is reduced, the service life of the equipment is prolonged, and the thermal efficiency of the equipment is improved.

Provided is a run-flat tire in which run-flat durability is improved by the arrangement position and shape of a band-shaped sound-absorbing member bonded to the tire inner surface, and the deterioration of high-speed durability can be suppressed. A run-flat tire provided with a carcass layer 10 mounted between a pair of bead sections 3, and a cross-sectionally crescent-shaped run-flat reinforcement layer 17 on the inner side of the carcass layer 10 in the sidewall sections 2 in the tire width direction, the band-shaped sound-absorbing member 6, which extends in the tire circumferential direction, being bonded in a region of the tire inner surface corresponding to a tread section 1, wherein the band-shaped sound-absorbing member 6 is disposed locally in at least one shoulder region among the regions corresponding to the tread section 1.

The invention relates to an optical-fiber temperature measuring probe and an optical cable cooling method in a high-temperature environment, which are both suitable for an optical-fiber continuous temperature measuring system of an industrial furnace and aim to achieve low cost and good heat insulating and radiating effects. A polycrystalline ceramic fiber pipe with high aluminum oxide content issleeved outside a stainless steel soft sleeve pipe which is provided with an optical cable seam as a heat insulating material, a polycrystalline high-purity aluminum silicate ceramic fiber blanket isbound outside a polycrystalline high aluminum oxide ceramic fiber sleeve pipe and used as a heat insulating material, aluminum silicate glass fiber cloth is wound outside the high-purity ceramic fiber blanket in a spiral mode, the optical-fiber probe is arranged on the upper part or the middle part or the lower part of a rear upright post of a pushing upright post, a wind cooling steel sleeve is additionally arranged outside the optical-fiber probe, sapphire quartz glass and cooling air blowing pipe are arranged in the steel sleeve, the quartz glass is blocked in front of the optical-fiber probe, cooling air is blown out from the front end of the steel sleeve, a stainless steel outer cylinder is additionally arranged outside the steel sleeve, and ceramic fiber castable refractory is filled in a gap between the stainless steel outer cylinder and the steel sleeve and used as a cooling wall.

The invention discloses an electrode roasting furnace with a lid in the field of graphite electrode production, particularly relates to a furnace floor flue gas channel structure of the electrode roasting furnace with the lid. The furnace floor flue gas channel structure is realized by the following steps: an ondol pier is arranged between a furnace floor masonry and ondol surface bricks and is composed of an upper ondol pier brick section and a lower ondol pier brick section. The calandria arrangement in the furnace floor flue gas channel that is formed by the ondol pier bricks with circularsections greatly lowers the local resistance loss of flue gas. As the furnace is a running system consisting of a plurality of furnace chambers, the accumulated reduction value of local resistance loss is very remarkable. As section size of the ondol pier bricks is reduced and the calandria flue gas channel structure is additionally arranged, the flue gas circulation area in the channel is increased, and the friction resistance loss in the flue gas circulation process is effectively reduced.

The invention discloses an ocean platform wall thickness gradient casting joint. The casting joint comprises a main body used for being connected with steel structure pipe fittings, wherein the main body is integrally cast steel, the main body comprises a center connecting pipe, 2-4 inclined pipes and 2-6 bottom pipes, the connecting ends of the central connecting pipe, the inclined pipes and the bottom pipes are intersected and converged at one position to form a joint core area, the central axes of all the connecting pipe fittings are intersected at two central points in the joint core area, the distance between the two central points is 250-300 mm, and a fillet is arranged between the surfaces of the inner wall and the outer wall of every two adjacent connecting pipes for transition. According to the casting joint, the overall weight is reduced, and meanwhile good welding performance is guaranteed; and the casting joint can be formed at a time, the process is simpler, and the manufacturing cost is greatly reduced.

The invention provides a high-efficiency and high-precision measurement experimental device for a natural convection heat transfer coefficient. The device comprises a unit-pipe pipe wall, a primary heating rod, an auxiliary heating rod, an insulating sheet, a heat-insulation jacket, heat-isolation end covers, a film thermocouple, terminal sleeves, an A / D (Analog / Digital) converter, a computer, a control box and a bracket. The insulating sheet is inserted between the primary and auxiliary heating rods of the device to form close connection; pipe cavities at an effective experimental section and an auxiliary experimental section which are corresponding to the primary and auxiliary heating rods respectively are spaced by using the annular heat-insulation jacket; the temperatures of the adjacent terminal sleeves of the primary and auxiliary heating rods are controlled to be the same through regulating the current and the voltage of the auxiliary heating rod, so as to reduce the axial heat loss of the primary heating rod; the internal surface silvered heat-isolation end covers are sleeved at each unit-pipe port; high-temperature-resistant heat-isolation foam mats are filled in gaps among the heat-isolation end covers and unit pipes, so as to reduce the heat loss due to radiation at an auxiliary-section port; the external surfaces of the unit pipes are slivered, and the internal surfaces of the unit pipes are plated with high-radiance materials, so as to shorten an experimental time. The measurement problem of the natural convection heat transfer coefficient is solved highly efficiently and highly precisely.

The invention discloses an electric heat preservation and decoration integrated wall and floor tile and a preparation method thereof. It is a combination of brick base layer mixture (components: clay, quartz, feldspar and pigment), non-metallic conductive layer mixture (components: carbonaceous materials, clay, iron raw materials and feldspar) and foamed ceramic insulation. The layer mixture (components: solid waste, feldspar, clay and foaming agent) is sequentially distributed, pressed by a press to form a green body, and the green body is fired at a high temperature in a kiln after drying. The floor tile has the advantages of small heat loss, electric heating efficiency up to 99%, and simple construction, which can reduce construction and use costs to a certain extent.

The present invention provides a valley power application control device and method based on phase-change energy storage. More than one heat storage floor is set in the heating area, and the phase-change heat storage bricks and carbon fiber heating modules in the heat storage floor are set as Can be separated and combined. The temperature master control device determines the accurate heat storage time according to the infrared data, pressure data, video data and other data in the heating area. After the heat storage is completed, the phase change heat storage brick and the carbon fiber heating module are separated, and the heat storage is stopped to realize heat storage. Accurate control of time reduces power consumption during off-peak periods. During the peak period of electricity consumption, the heat stored in the heat storage floor is used for heating, and the temperature master control device determines that the heating area is a vacant area or an active area. When the heat storage time or heat storage is reached in the vacant area, the phase change heat storage brick and carbon fiber The heating module is separated to stop heat storage, reduce heat consumption and heat storage time, realize accurate control and distribution of heat storage and heating power, and further save electric energy.