38results about How to "Heat transfer barrier" patented technology

Disclosed is a core member for a vacuum insulation material, the core member having high initial insulation performance and radiant heat blocking performance, and the vacuum insulation material using same. The vacuum insulation material according to the present invention comprises a plurality of core layers, a radiant heat blocking film which is disposed between the plurality of core layers, and an outer skin material which vacuum-packs the core layers and the radiant heat blocking film.

The invention provides a manufacturing method for fluorine plastic injection outside a glass lining workpiece. The manufacturing method is characterized by comprising the following steps: step one, carrying out thorough clearing sand blasting on the surface of a metal blank body, and then enameling a ceramic glaze coating with uniform thickness on the surface; step two, uniformly spraying a fluorine plastic layer on the surface of the glass lining workpiece, and spraying on the surface of the glass lining workpiece in sequence, wherein the fluorine plastic layer is divided into a base material, a middle material and a surface material; step three, clearing the surface, and carrying out 20kv high-voltage discharge test to complete the preparation of the workpiece. The method for preparing the workpiece is wider in applicable medium, the surging range of temperature difference is improved, and the method has the obvious advantages of good medium permeability resistance, long service life, lower cost and the like; a PFA (Perfluoroalkoxy alkane) coating sprayed on the surface can compensate the defects of dark bubbles, pinholes and the like which are undetected by glass lining equipment; the temperature difference surging resistance of the equipment is further increased, and the risk of glass lining explosion caused by temperature difference surging is reduced.

The invention relates to a box structure of an air handling unit, which includes: a plurality of panels, the panels constitute the main body of the box structure, and the inner air inside the box structure and the air outside the box structure The outside air is isolated; a plurality of frame bars, each of which is of integral structure and arranged between two adjacent panels, each of the frame bars also has an inner side facing the inner air and an inner side facing the inner air The outer side of the outer air, as well as the joint corner and the fastening device, the joint corner is arranged at the intersection of a plurality of the frame bars, and the fastening device is used to fixedly connect the panel and the frame bar, wherein , at least a part of the outer side of the frame bars is covered by the panel, and one side of the inner side and the outer side of each of the frame bars is arranged not to be in contact with the air. The present invention has improved box performance and reduced material costs.

The invention discloses a wood-aluminum composite-type door window which comprises a window frame and a window leaf. The window frame comprises a wood frame arranged on the indoor side and aluminum frames arranged on the outdoor side, grooves with cross sections in the shape of inverted trapezoids are formed in the wood frame, a clamping-connecting groove symmetrically formed by two dovetail grooves is formed in each aluminum frame, dovetail connecting members are arranged between the grooves and the clamping-connecting grooves, each dovetail connecting member comprises an embedding end and a clamping-connecting end, the upper end of each embedding end is formed by two symmetrically-arranged Z shapes while the lower end of the same is T-shaped, the upper end and the lower end of each embedding end form three glue injecting grooves, the cross section of each clamping-connecting end is trapezoidal, the embedding ends are embedded in the grooves, two clamping-connecting arms of each clamping-connecting groove extend in the corresponding groove and are connected with the clamping-connecting end in a clamped manner, and glue is filled in the glue injecting grooves. The dovetail connecting members are arranged between the wood frame and the aluminum frames, and can prevent water drops on the aluminum frames from entering the wood frame, so that the wood frame is ensured not to deform after being affected with damp; the dovetail connecting members can barrier heat transfer of the aluminum frames, so that the door window is enabled to have good heat insulation effect.

The invention discloses a method and device for indoor cooling by using roof rainfall. In the method, a rainwater collection unit is used to collect roof rainfall, and the collected rainwater is processed by a rainwater treatment unit for multi-stage rainwater treatment, and the treated rainwater is pumped again. To the roof, the rainwater pumped to the roof is dispersed on the roof for indoor cooling; the rainwater collection unit of the device is connected to the rainwater treatment unit, and the rainwater treatment unit is connected to the rainwater delivery unit; the rainwater collection unit includes rainwater collection pipes, and the rainwater treatment unit includes first-level rainwater The processing unit and the secondary rainwater treatment unit, the rainwater conveying unit includes a rainwater conveying pipe, the water inlet of the rainwater conveying pipe is connected to the pressurized water pipe, and the water outlet of the rainwater conveying pipe is connected to a leaking pipe. The invention aims at the purpose of cooling indoors of large-space buildings, uses roof rainfall to store it and utilizes it after the rainy period, and cools roof and indoor air through rainfall evaporation, which is technically feasible and more economical than traditional cooling methods.

The invention relates to an anti-thermal shock iolite fireproof kiln furniture and a preparation method thereof. The fireproof kiln furniture comprises the raw materials of 25-37% of a matrix, 50-56% of an aggregate, 4-5% of a sintering agent and 9-14% of a fiber reinforced material, wherein the matrix is composed for 15-25% of kyanite fine powder, 15-25% of kaolin fine powder, 48-69% of and alusite fine powder, and 1-2% of magnesia fine powder, and the aggregate is composed for 60-75% of gangue and 25-40% of high bauxitic clay clinker. In the prepared fireproof material, acicular iolite and cylindrical mullite are interlaced to a net state, the particles are in a free state with uniform size, the matrix and the particles have a certain buffer area, a certain stress is absorbed, and crack dynamic expansion is avoided. An iolite-mullite multiphase is generated in the fireproof product, synchronous increase of flexural intensity and compression strength can be satisfied, and the heat stability of the final product is increased.