35 results about "Double wall" patented technology

The utility model relates to a light-transmitting guide pipe structure of a light-transmitting concrete outer wall, which is used for being matched with construction of a non-contact double-layer outer wall and forming a light guide channel penetrating through the double-layer outer wall at the same time after the construction is completed. The light-transmitting guide pipe structure comprises a first sleeve, a second sleeve and a transparent light guide rod; one end of the first sleeve is connected to one end of the second sleeve in a sleeved mode, and a pipe cavity with the inner diameter decreasing from the first sleeve to the second sleeve is formed in the pipe. The length and the shape of the transparent light guide rod correspond to those of the tube cavity; the first sleeve and the second sleeve are sequentially matched with the double-layer wall body for construction and connection, while sequential construction of the double-layer wall body is not affected, a lateral light shielding channel is formed after the double-layer wall body is used, and then a light guide channel penetrating through the double-layer wall body at the same time is formed after the transparent light guide bar is inserted into the double-layer wall body; the limitation that a conventional light-transmitting rod can only be applied to a single-layer concrete wall is eliminated, and the application scene of the light-transmitting concrete wall is expanded.

The invention discloses an internal combustion type carbonization system based on material whole-course spiral propulsion, which comprises a carbonization furnace, a feeding auger, an ignition device, a first air blower and a second air blower, the carbonization furnace linearly extends along the left-right direction, and the right end of the carbonization furnace is provided with a carbon discharge port; a drying preheating area, a main carbonization spontaneous combustion area and a burnout carbon discharge area are sequentially formed in the hearth in the advancing direction of materials; through the partition design in the hearth and the whole-course penetrating layout of the feeding auger feeding pipe, materials are turned over, fed and carbonized in the pipe at the same time, and the problems of uneven carbonization and product quality fluctuation caused by static material accumulation or simple pushing of traditional external combustion type equipment are thoroughly solved; meanwhile, due to the internal combustion type design, pyrolysis gas can be spontaneously combusted in the furnace, heat directly acts on a feeding pipe and materials, heat loss caused by external combustion type double wall surface conduction is avoided, the heat utilization rate can be greatly improved, system self-circulation can be achieved under the condition that external continuous energy supply is not needed, and the operation cost is reduced.

The invention provides a muddy water type pipe-jacking tunneling device adopting a double-channel cutterhead main shaft structure, which comprises a tunneling device shell, a main shaft seat, a cutterhead and a cutterhead main shaft, the tunneling device shell is of a cylindrical structure, the outer edge of the tail end of the tunneling device shell is provided with a bell and spigot for a bell and spigot pipeline, the main shaft seat is arranged at the rear half section of the tunneling device shell, and the cutterhead main shaft is arranged on the main shaft seat. The front half section of the tunneling device shell is a muddy water cabin; the cutter head is arranged at the front end of the tunneling device shell; the rear end of the cutterhead main shaft is arranged on the main shaft seat, and the front end is connected with the cutterhead; a plurality of hard alloy cutter blocks are arranged on the soil facing surface of the cutter head; the cutterhead main shaft adopts a large-diameter double-wall structure and consists of an outer shaft and a core tube, and the front end of the outer shaft is connected with the cutterhead and is responsible for driving the cutterhead to rotate; the front end of the core tube is closed, the core tube is fixedly arranged at the axis of the outer shaft, and the inner space of the outer shaft is divided into a core tube hole and a double-wall interlayer channel between the outer wall of the core tube and the inner wall of the outer shaft; the structure is extremely simple, and the technical risk is greatly reduced.

The application discloses a supporting device for double-layer wall construction, which comprises a supporting frame body, upper supporting pieces and a plurality of sets of connecting assemblies arranged on the supporting frame body, the double-layer wall comprises an inclined wall and an upper wall arranged above the inclined wall, and the plurality of sets of connecting assemblies are used for connecting the inclined wall formwork to the supporting frame body; the connecting assembly comprises a connecting rod, a lower supporting plate and an upper supporting plate, the connecting rod is vertically arranged and fixedly connected to the supporting frame body after penetrating through a lower formwork of the inclined wall downwards; the lower supporting plate is fixedly connected to the lower part of the connecting rod and used for supporting the lower formwork of the inclined wall; the upper supporting plate is fixedly connected to the upper part of the connecting rod and used for supporting an upper formwork of the inclined wall; the connecting rod is fixedly connected to the upper supporting piece after penetrating through the upper formwork of the inclined wall upwards, and the upper supporting piece is used for supporting the upper wall formwork; the supporting device has good integrity and stable structure, and can simplify the installation of the formwork; and a double-layer wall construction method is also disclosed, which greatly improves the construction efficiency.

Partition (1) with a double wall (2, 3) that is partially translucent or transparent, forming a passage (4) for ventilation and sound attenuation. A privacy space, for example within a passenger railway carriage, delimited by such a partition. Figure for the abbreviation: Fig. 3

This invention provides a modular abrasive particle size classification and screening device, belonging to the technical field of screening equipment. It includes a mounting base, an integrated cylindrical body, and multiple independent screening modules. The integrated cylindrical body is mounted on the mounting base, and the multiple independent screening modules are arranged vertically from top to bottom along the interior of the integrated cylindrical body. Each independent screening module includes a screen frame and a screen mesh, and the screen mesh aperture of each module gradually decreases from top to bottom to achieve particle size classification and screening of the abrasive. The outer ring of the screen frame has a double-wall structure, forming a closed annular cavity between the double walls. Multiple guide sleeves are vertically arranged inside the annular cavity, and each guide sleeve contains a cleaning ball that can reciprocate vertically within the guide sleeve. This device, through the integrated cylindrical body and independent screening modules, utilizes the gradual change in screen mesh aperture and vibration to classify the abrasive. The cleaning balls impact elastic impact plates to vibrate the screen, preventing clogging.

A leak and outgassing inspection system according to an embodiment of the present invention comprises: a vacuum transmitter configured to measure the pressure of an insulation space of a double wall of a liquefied gas storage tank; a vacuum pump mounted on a vacuum pipe connected to the insulation space of the double wall of the liquefied gas storage tank, and configured to operate when the pressure of the insulation space measured by the vacuum transmitter rises above a set pressure; and a determination unit analyzing a component of gas sampled during operation of the vacuum pump, and determining whether a cause of an increase in the pressure of the insulation space is any one of a leak or outgassing of the double wall on the basis of an analysis result.

A double wall (2) for a combustion chamber (1) of a gas turbine of an aircraft, the double wall (2) comprising an inner wall (21) configured to be in contact with a combustion reaction and an outer wall (22) kept at a distance from the inner wall (21), the outer wall comprising a plurality of openings (3) so as to allow the circulation of a cooling flow (F) outside the outer wall (22) so as to cool the inner wall (21), the inner wall (21) being free of perforations so as to prevent the circulation of the cooling flow (F) towards the center of the combustion chamber (1). The double wall (2) is characterized in that the inner wall (21) comprises a plurality of members (4) projecting towards the outer wall (22), each projecting member (4) comprising a foot (4a) and a cylindrical head (4b) having a circular cross section, the head (4b) extending into the opening (3) having a circular cross section so as to define an adjusted cross section area between the projecting member (4) and the opening (3), the cooling flow (F) being able to flow through the adjusted cross section area.

The present application belongs to the technical field of sound insulation of fabricated buildings, and specifically relates to a structure and method for improving the air sound insulation performance of a lightweight wall for a fabricated building, and specifically comprises: adding an elastic damping cushion layer, a sound insulation damping rubber layer or a metal damping keel on both sides of a lightweight wall framework; applying double-layer wall panels; filling glass wool or rock wool inside; treating the butt joint of the wall panels; applying a window with a sound insulation amount greater than 75% of the sound insulation amount of the wall; and setting an elastic damping rubber cushion layer around the window. The air sound insulation performance of the wall is tested and the sound insulation grade is evaluated. By not changing the conventional structure of the lightweight wall framework, the air sound insulation performance of the conventional lightweight wall is improved in the full frequency band, and measures for improving the sound insulation performance of the wall containing the window are proposed in view of the conventional window in the wall as a whole sound insulation short board. The present application ensures the advantages of high assembly efficiency, convenient and fast prefabrication, simple construction and low cost of the lightweight wall, and significantly improves the air sound insulation performance of the lightweight wall.

The utility model relates to the technical field of non-excavation repair of drainage pipelines, and discloses a non-excavation repair device for a double-wall corrugated pipe with slight collapse deformation, which is characterized in that a fixed block is arranged at the end part of a fixed shaft; the center hole jack is arranged on the fixed shaft in a sleeving manner and is fixedly connected with the fixed block; a movable top block is arranged at the telescopic end of the center hole jack; the movable ejector block is hinged to the first end of the connecting rod set, and the second end of the connecting rod set is connected with the expansion plate. The pipeline supporting steel ring is used for being arranged on the expansion plate in a sleeving mode. The telescopic end of the center hole jack drives the movable ejector block to move along the fixed shaft, the movable ejector block drives the connecting rod set to expand in the radial direction, and the expansion plate expands the pipeline supporting steel ring to support an original pipeline. The expansion plate is driven by the center hole jack to expand outwards, the deformed pipeline is jacked to be round, the pipeline supporting steel ring is opened to be attached to the original pipeline synchronously, and local non-excavation repairing of the double-wall corrugated pipe with slight collapse deformation is achieved.

The invention relates to the field of wall drawing and design, in particular to an automatic generation method for a double-row light steel keel wall and an automatic generation system based on Revit. An automatic generation method for a double-row light steel keel wall comprises the steps that the light steel keel wall is drawn according to a graph or in the forward direction, and wall body parameters of the light steel keel wall are defined; the method comprises the following steps: defining type parameters of different keel materials in a light steel keel wall, defining an alignment mode of the keels and the wall bodies and an offset and arrangement mode of the keels, creating a material library containing standard connection forms of the respective keels in adjacent wall bodies, matching corresponding standard connection components in the material library, and in connection of the L-shaped wall bodies, establishing a material library containing standard connection forms of the keels in the adjacent wall bodies. The double-wall inner side and the double-wall outer side are respectively connected with the double-wall inner side and the double-wall outer side which are matched with the double-wall inner side and the double-wall outer side, and in the T-shaped wall body, the double-wall inner side forms a linear part. Therefore, the problems of frequent construction errors, serious material loss and the like caused by long-term dependence on two-dimensional drawing and artificial experience on deepening design of a light steel keel partition wall system in the building decoration industry in the prior art are solved.

To provide a transport container that offers excellent operability when pulling and moving the transport container. [Solution] The transport container 1 is a transport container having a bottom plate portion 2 and a peripheral wall portion 3 erected from the periphery of the bottom plate portion 2, and handle holes 44, 54 that penetrate to the inside and outside of the container are formed in the upper plate portion 51 of the swing plate portion 4 and the bent plate portion 5 of the peripheral wall portion 3, and frame portions 45, 55 which project outward and are made of a double wall having a pair of wall portions are provided at least below the outer circumference of the handle holes 44, 54, and the frame portions 45, 55 have a structure in which the inside of the container is open and the outside of the container is closed by a closed surface portion, and the connecting portion between the pair of wall portions and the closed surface portion is curved in shape.

In order to improve three-dimensional (3D) printing a high-aspect-ratio three-dimensional metal structures, there is provided a printing method that builds a wall comprising a center part made out of a metal-containing material and left and right parts made out of a plastic material forming first and second supporting wall elements. The plastic support material may be used to enable the build-up of a high-aspect-ratio 3D structure. The proposed printing strategy may be applicable to a cost-effective 3D printing technology, such as fused deposition molding (FDM).

The utility model discloses a closed test silence room with a double-layer wall structure, which comprises a silence room outer shell, an expansion box communicated with the interior of the silence room outer shell is fixedly mounted on the front surface of the silence room outer shell, an external loose-leaf door is hinged to the front surface of the expansion box, and a storage groove is formed in the side wall of the expansion box. The double-layer wall structure of the metal outer wall and the glass fiber inner wall is adopted, the sound insulation cotton is filled between the metal outer wall and the glass fiber inner wall, external noise, especially low-frequency noise, is effectively blocked, the purity of the acoustic environment in the silence room is ensured, the shock pad can reduce interference of vibration of internal equipment on acoustic testing, and the testing accuracy is further improved. And meanwhile, leakproofness and convenience for people to go in and out are achieved through the design of the expansion box and the double doors, external noise can be prevented from permeating even in the testing process, air circulation in the mute room is achieved through the air exchange assembly arranged at the top, and it is ensured that interference cannot be introduced in the air exchange process.

A canal liner and method for installing a canal liner. The canal liner has a bottom portion, a first hollow sidewall and a second hollow sidewall. One or more of the sidewalls can have one or more weep holes to allow liquid to at least partially fill one or more internal voids thereof. The sidewalls can be coupled to the bottom portion via one or more hinges such that the canal liner can be transported in a substantially flat, planar shape and folded on-site and placed into the canal.

A vacuum heat insulating container that can be easily subjected to inspection work is provided. A vacuum heat insulating container (1) includes: a container main body (100) including an opening (40a) and an accommodating space (40b); and a lid body (101). The container main body (100) includes a heat insulating container body (40) including: a first outer covering member (41) which is a molded body made of a nonmetal material and has a gas barrier property and a double wall structure; a first core member (42); and a pressure sensor (43). The lid body (101) includes: a heat insulating lid body (50) including a second outer covering member (51) having a sack shape formed by a flexible film which includes a metal layer and has a gas barrier property and a second core member (52); and a window (61) by which a surface of the second outer covering member (51) is visually confirmable.

A support arrangement for a conductor (16, 17) of a transformer (20) with a support frame comprising a first support beam (1) and a second support beam (2), which are connected to each other via at least a first crossbeam (7), characterized in that a third support beam (3) is connected to the second support beam (2) via a second crossbeam (9), wherein the first support beam (1) and the second support beam (2) are located in a first layer (8) and the third support beam (3) and the second support beam (2) are located in a second layer (10) and the layers (8, 10) intersect each other, wherein the second support beam (2) is formed as a double wall, and the first crossbeam (7) projects into a receiving opening located between walls (13a, 13b) of the second support beam (2) and the second crossbeam (9) projects into a through-opening (14) recessed into a wall (13a, 13b) intervenes.

The invention provides an anti-deformation device used in the repair welding process of a double-vertical-wall casting and a dismounting and mounting method, and belongs to the technical field of repair welding of high-temperature alloy castings. The problems that casting deformation in the welding process is effectively prevented, and meanwhile mounting and dismounting of the anti-deformation repair welding device are simplified are solved. The device comprises an inner molded surface block, an outer molded surface block, a middle supporting block, a fixing support and a limiting screw rod, the inner molded surface block, the outer molded surface block and the middle supporting block are arranged in a gap of double walls of the double-vertical-wall casting and attached to the surface of the double-vertical-wall casting, and the middle supporting block is arranged between the inner molded surface block and the outer molded surface block. The bottom of the limiting screw rod is connected with the top of the middle supporting block, the fixing support is connected with the limiting screw rod, and the bottom of the fixing support is attached to the upper surface of the double-vertical-wall casting. The device is mainly used for preventing deformation in the repair welding process of the double-vertical-wall high-temperature alloy casting.

The invention relates to a construction method of a petal-shaped double-layer wall, and relates to the technical field of engineering construction.The construction method comprises the following steps that a to-be-constructed double-layer wall is sequentially divided into a plurality of sections from bottom to top in the height direction, and the to-be-constructed double-layer wall comprises an outer wall and an inner wall; the outer wall is firstly expanded outwards and then contracted inwards relative to the inner wall in the vertical direction, the top of the outer wall is connected with the top of the inner wall, in the construction process, a corresponding formwork is placed on a floor, sectional type pouring is carried out, steel bars are reserved according to a wall column drawing of the next layer during construction, and the construction efficiency is improved. The reserved length, bending points and angles of the steel bars are adjusted according to design requirements for setting, the floor wall is formed through layer-by-layer concrete pouring, the hoisting difficulty is reduced, the wall is arranged to be in a petal shape formed by mutual staggering of the inner wall and the outer wall, the multiple sets of petal-shaped inner wall and outer wall are combined to form an ellipsoid shape, and the overall appearance attractiveness is improved.

A multi-walled container comprising a receptacle, and outer sleeve, and an intermediate space defined therebetween for insulating the container is provided. The receptacle includes a bottom wall and a circumferential sidewall, the receptacle sidewall including at least one outwardly projecting embossment spaced below an upper edge of the receptacle. The outer sleeve has a circumferential sidewall which may include at least one inwardly projecting debossment. The at least one outwardly projecting embossment contacts and engages the at least one inwardly projecting debossment of the receptacle to define an intermediate insulating layer between the receptacle sidewall and outer sleeve sidewall and secure the outer sleeve to the receptacle.

The utility model relates to the technical field of constructional engineering, in particular to a double-wall formwork structure. The double-wall formwork structure comprises a concrete formwork, the concrete formwork comprises an outer side formwork and an inner side formwork, a long and narrow double-wall pouring cavity is formed between the outer side formwork and the inner side formwork, the inner side formwork comprises supporting side plates, and the opposite supporting side plates are parallel to each other and arranged at intervals; and the supporting assembly is arranged between the two opposite supporting side plates, the supporting assembly abuts against the supporting side plates on the two sides, the supporting assembly is provided with an adjusting piece, and the length of the supporting assembly can be adjusted through the adjusting piece. The inner side formwork can be prefabricated firstly according to the size of the double walls needing to be poured, the prefabricated inner side formwork is placed at the construction position for construction, the problem that constructors enter the inner side space to build the inner side formwork is avoided, and the construction efficiency is further improved.

The utility model provides a kind of double-wall plate heat exchanger, comprising: heat exchanger main body, multiple connecting pipes, circular box, two installation pipes, multiple filter screens, first installation slot, two sealing components, arc-shaped dismounting block and two blocking components;Multiple connecting pipes are connected to the surface of heat exchanger main body respectively;Circular box is arranged at one end of connecting pipe, two installation pipes are connected to the two ends of circular box respectively, and multiple filter screens are all arranged inside circular box;First installation slot is opened in the surface of circular box, and two sealing components are arranged on first installation slot respectively;Arc-shaped dismounting block is arranged inside first installation slot;Two blocking components are arranged on the two sides of the surface of circular box respectively.The double-wall plate heat exchanger provided by the utility model, when the filter screen inside circular box needs to be replaced after long-time use, the arc-shaped dismounting block on the surface of circular box can be dismounted and replaced, and the convenience of simple and convenient replacement can be achieved.

1. The name of the design product: double-layered hole expansion cylinder. 2. The use of the design product: the design product is used for hole expansion of hot small-diameter cylindrical metal blanks. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view 1.

The present application relates to a kind of heat exchanger of reinforced double-wall heat transfer heat shield, including air film hole plate and impact hole plate, multiple support trusses are arranged in the cavity between air film hole plate and impact hole plate in matrix, the support truss is by four truss rods, one end of four truss rods is crossed to form a intersection point, intersection point and the other end of four truss rods are connected with air film hole plate and impact hole plate respectively;Support truss is disturbed to impact jet and wall jet and forms complex flow and vortex C4, and the upper surface of air film hole plate is strengthened convective heat transfer, support truss forms support effect to impact hole plate and air film hole plate on the one hand, on the other hand, it plays the role of heat conduction heat transfer, increase the convective heat transfer area in channel.The present application strengthens internal heat exchange, and also promotes air film cooling effect, i.e. it can simultaneously improve the effect of internal cooling and external cooling.

The invention discloses an end rolling connecting device and method for a double-layer guide pipe, and relates to the technical field of rolling forming. The device comprises an equipment master control device, a rolling mechanism and an equipment main body box, a main body box operation table is provided with a rotary feeding mechanism, an axial movement supporting mechanism and a catheter locking mechanism along a working shaft, and the axial movement supporting mechanism is connected with a first rotary driving mechanism. The rolling mechanism comprises inner and outer ring rolling assemblies which are coaxially matched to extrude the guide pipe inside and outside. According to the method, the inner pipe body and the end pipe sleeve inner wall groove are embedded, and the outer pipe body and the outer wall groove are embedded by preparing components, splicing and clamping, selectively installing the rolling mechanism, setting parameters and automatically executing the rolling process. The sealing performance, pressure resistance and other performance of the guide pipe are improved, the device adapts to extreme working conditions, the automation degree is high, and efficiency is excellent.

The utility model discloses a kind of HDPE double-wall corrugated pipes of convenient assembly, it is related to double-wall corrugated pipe technical field, including double-wall corrugated pipe main body, the both ends of double-wall corrugated pipe main body are fixedly connected with connecting pipe, several positioning seats are fixedly connected on double-wall corrugated pipe main body outer side wall, connecting sleeve is sleeved between adjacent two connecting pipes;Device is tightly fixed on connecting sleeve by the setting of anti-disengagement structure, when the first threaded rod rotates, by the meshing of first bevel gear and second bevel gear, second threaded rod is driven to rotate, and then second threaded sleeve and first movable block are driven to move, first movable block drives movable frame to rotate with hinged seat as fulcrum by linkage rod, with the rotation of movable frame, abutting ball is gradually clamped into the groove in positioning seat, connecting pipe is tightly fixed in connecting sleeve, prevent double-wall corrugated pipe main body and connecting sleeve from disengaging due to external force in use process.