56results about How to "Guaranteed suction capacity" patented technology

The invention discloses a metal vacuum composite insulation plate with a getter. The metal vacuum composite insulation plate comprises a shell, a core material, a core plate and a vacuum cavity, and is characterized in that the shell is a metal plate or a metal composite plate, wherein the core material is positioned in the vacuum cavity for providing additional strength to the shell and guaranteeing the flatness of the shell under atmospheric pressure; the vacuum cavity is a closed cavity formed by performing the welding edge sealing under normal pressure and the high-temperature opening sealing under vacuum for the shell; the opening sealing is a step that an extraction opening prefabricated in the shell is automatically sealed in a vacuum furnace by using a low-temperature solder according to a liquid sealing principle; and the getter is arranged in the vacuum cavity. A preparation method of the metal vacuum composite insulation plate is simple in process; and the prepared metal vacuum composite insulation plate with the getter can overcome the defects of a traditional insulation plate and a traditional vacuum insulation plate, and can be improved in strength, and heat insulation, sound insulation, fire prevention and decoration functions.

The invention discloses a metal vacuum insulation plate with a getter. The metal vacuum insulation plate comprises a shell, a core material and a vacuum cavity, and is characterized in that the shell is a metal plate or a metal composite plate, wherein the core material is positioned in the vacuum cavity for providing additional strength to the shell and guaranteeing the flatness of the shell under atmospheric pressure; the vacuum cavity is a closed cavity formed by performing the welding edge sealing under normal pressure and the high-temperature opening sealing under vacuum for the shell; the opening sealing is a step that a prefabricated extraction opening in the shell is automatically sealed in a vacuum furnace by using a low-temperature solder according to a liquid sealing principle; and the getter is arranged in the vacuum cavity. A preparation method of the metal vacuum insulation plate is simple; and the prepared metal vacuum insulation plate with the getter can overcome the defects of a traditional insulation plate and a traditional vacuum insulation plate, and can improve the strength, and the heat insulation, sound insulation, fire prevention and decoration functions.

The invention relates to a suction dredge for an underwater hard soil layer, and relates to the field of bridge construction equipment. The suction dredger comprises a mud suction mechanism, a mud crushing mechanism and an anti-blocking assembly, wherein the mud suction mechanism comprises a pressurizing assembly and a mud suction pipe, the mud suction pipe penetrates through the pressurizing assembly, at least part of the two ends of the mud suction pipe extend out of the pressurizing assembly, a plurality of pressurizing holes inclining upwards in the direction from the outer wall to the inner wall are formed in the side wall of the pipe section of the mud suction pipe in the pressurizing assembly, and the pressurizing assembly is used for forming a low-pressure in the mud suction pipe through the pressurizing holes; the mud crushing mechanism comprises at least two mud crushing assemblies, the mud crushing assemblies are arranged at the bottom of the mud suction mechanism, and the mud crushing assemblies are used for crushing the underwater hard soil layer to assist the mud suction of the mud suction pipe; and the anti-blocking assembly is arranged at the bottom of the mud suction pipe, the anti-blocking assembly is used for preventing the mud suction pipe from being blocked in the mud suction process. According to the suction dredger for the underwater hard soil layer, theproblems that in the prior art, when the suction dredger works in the underwater hard soil layer, the suction dredger is poor in mud suction effect and prone to being blocked are solved.

A double-vacuum-layer ceramic composite vacuum plate with getters comprises face plates, connecting layers and a vacuum chamber and is characterized in that the face plates are made of ceramic plates or ceramic tiles; the face plates and/or the connecting layers provide additional strength for the vacuum chamber, so that smoothness of the vacuum chamber under atmosphere is guaranteed; the vacuum chamber is a sealed cavity which is formed in the mode that the edges of metal plates are sealed in a welding mode under normal pressure and the openings of the metal plates are sealed by high temperature under vacuum; the opening sealing operation is conducted as follows: an extraction opening preformed in the vacuum chamber is automatically sealed in a vacuum furnace by low-temperature welding fluxes on the basis of the liquid sealing principle; a partition plate is arranged in the vacuum chamber and divides the vacuum chamber into double vacuum layers; upholders are arranged in the vacuum layers. A method for manufacturing the double-vacuum-layer ceramic composite vacuum plate with the getters is simple in process, the prepared double-vacuum-layer ceramic composite vacuum plate with the getters can overcome the defects of an existing heat preservation plate and an existing vacuum heat insulation plate, and strength, heat and sound insulation performance and fireproof performance of the double-vacuum-layer ceramic composite vacuum plate with the getters can be improved.

Convex tempered vacuum glass provided with a getter in edge sealing of sealing strips is disclosed. The convex tempered vacuum glass is characterized in that: upper glass and lower glass are convex tempered glass; the upper glass is provided with an extraction opening; the extraction opening is provided with a sealing cover; the getter is disposed in the extraction opening; the periphery of the upper glass and the periphery of the lower glass are provided with the sealing strips; the periphery of the upper glass and the periphery of the lower glass are welded by adoption of low-temperature glass solder at normal pressure in an edge banding furnace; the extraction opening is automatically sealed by utilization of the sealing cover and metal solder in a vacuum furnace; the getter is automatically activated in a sealing process; a closed vacuum layer is formed between the upper glass and the lower glass; the sealing strips are made of tempered glass printing ink and/or polymer; the polymer is prepared into pre-polymer firstly, and then the prepolymer is prepared onto glass or tempered glass printing ink after glass tempering; the prepolymer cures at the room temperature or high temperature to form an elastomer; the prepolymer or the elastomer can automatically adapt to changes of the height of the vacuum layer; and volatile gas in the elastomer is removed at a high temperature and under high vacuum.

The invention provides a vacuum glass getter placement structure which is characterized in that punching is performed on an upper piece of glass of vacuum glass to form an extraction opening, a sealing ring is prepared at the periphery of the extraction opening and the lower surface of the upper piece of glass, an annular sealing box is placed on a lower piece of glass, and a sealing cover is further arranged on the annular sealing box; after edges of the upper piece of glass and the lower piece of glass are sealed, the getter is placed into the extraction opening, the extraction opening is covered with the sealing cover, then metal solder is placed into the annular sealing box or on the sealing cover, the extraction opening is vacuumized and heated, the getter is automatically activated at high temperature and under high vacuum, meanwhile metal solder is melted into liquid at high temperature, the liquid is retained in the annular sealing box, edge parts of the sealing ring and the sealing cover are submerged into the liquid, the extraction opening is in self sealing by utilizing the liquid sealing principle and the getter is further sealed in the vacuum layer, and after cooling, the liquid is solidified, and air tightness seal is realized. According to the method provided by the invention, mass production can be realized, production efficiency and qualified rate of the vacuum glass are greatly improved, and production cost is reduced.

The invention discloses a dust collection cart for spinning. The dust collection cart comprises a transition box, a bottom collecting box and a cart frame. The upper end of the bottom collecting box is in through connection with the bottom of the transition box, the transition box is sleeved with a placing through hole formed in a top plate of the cart frame, the bottom end face of the transition box abuts against the upper end face of a base plate of a supporting sleeve fixedly arranged on the bottom surface of the top plate of the cart frame, and the bottom collecting box penetrates a central through hole of the base plate of the supporting sleeve and abuts against a buffer cushion fixedly positioned on the upper portion of the base plate of the cart frame. A ventilator is fixed on an outer wall of a rear side plate of the transition box, the air suction end of the ventilator is communicated with a through hole formed in the rear side plate of the transition box, and at least one air spraying pipe and at least one water spraying pipe are fixed on the upper portion of the transition box. The dust collection cart can move near spinning devices, such as the front of a bobbin winder and the front of a twisting machine; air in front of the devices is absorbed through an air suction head, accordingly air with impurities such as fibers and short hair is sucked in and filtered.

The invention discloses convex toughened vacuum glass provided with a getter with edges being sealed by sealing strips and sealing grooves. The convex toughened vacuum glass is characterized in that upper glass and lower glass are convex toughened glass; the upper glass is provided with an extraction opening; a sealing cover is arranged on the extraction opening; the getter is put into the extraction opening; the upper glass is provided with the sealing strips; the lower glass is provided with the sealing strips and the sealing grooves; the upper glass and the lower glass are welded together in an edge-sealing furnace under a normal pressure by using a glass solder; the extraction opening is automatically enclosed in a vacuum furnace by using the sealing cover and a metal solder; the getter is automatically activated in an edge-sealing process; an enclosed vacuum layer is formed between the upper glass and the lower glass; the sealing strips are made of toughened glass ink or/and a high polymer; the high polymer is prepared into a prepolymer firstly; after the glass is toughened, the prepolymer is prepared on the glass or the toughened glass ink; the prepolymer is cured into an elastomer at a room temperature or a high temperature; the prepolymer or the elastomer can automatically adapt to the height change of the vacuum layer; and the elastomer exhausts own contained volatile gas at a high temperature and in vacuum.

A stone composite vacuum plate with getters comprises face plates, connecting layers and a vacuum chamber and is characterized in that the face plates are made of natural stones or artificial stones; the face plates and/or the connecting layers provide additional strength for the vacuum chamber, so that smoothness of the vacuum chamber under atmosphere is guaranteed; the vacuum chamber is a sealed cavity which is formed in the mode that the edges of metal plates are sealed in a welding mode under normal pressure and the openings of the metal plates are sealed by high temperature under vacuum; the opening sealing operation is conducted as follows: an extraction opening preformed in the vacuum chamber is automatically sealed in a vacuum furnace by low-temperature welding fluxes on the basis of the liquid sealing principle; upholders and the getters are arranged in the vacuum chamber. A method for manufacturing the stone composite vacuum plate with the getters is simple in process, the prepared stone composite vacuum plate with the getters can overcome the defects of an existing heat preservation plate and an existing vacuum heat insulation plate, the air tightness of the vacuum chamber of the stone composite vacuum plate with the getters can be effectively guaranteed, the service life of the stone composite vacuum plate with the getters is prolonged, and strength, heat and sound insulation performance and fireproof performance of the stone composite vacuum plate with the getters can be improved.

A double vacuum layer composite vacuum plate with degassers comprises a panel, a core plate and a vacuum cavity, and is characterized in that the panel is fixed on the upper surface at the outer part of the vacuum cavity; the core plate is placed at the bottom in the vacuum cavity; the panel and/or the core plate provide (s) additional strength for the vacuum cavity, and ensure (s) the smoothness of the vacuum cavity under the atmospheric pressure; the vacuum cavity is a closed cavity formed in such a way that a metal plate is subjected to welding and edge sealing under the normal pressure and sealing at a high temperature in vacuum; the sealing is achieved through automatically sealing an extraction opening, prefabricated in the vacuum cavity, in a vacuum furnace by low-temperature solder according to a liquid sealing principle; a clapboard is arranged in the vacuum cavity, and divides the interior of the vacuum cavity into double vacuum layers; and struts are arranged in the vacuum layers. The double vacuum layer composite vacuum plate has the advantages that the preparation method is simple in process, the prepared double vacuum layer composite vacuum plate with the degassers can overcome defects of a conventional insulation board and a conventional vacuum insulation board, and the strength, the heat insulation performance, the sound insulation performance, and the fire resistance and the decoration performance can be enhanced.

A metal vacuum composite insulation panel with sealing strips and a getter comprises a housing, a core material, a core plate and a vacuum chamber and is characterized in that the housing is a low-carbon steel plate or a low-carbon steel composite plate, the core material is arranged in the vacuum chamber to provide the housing with additional strength to ensure the smoothness of the housing at atmospheric pressure, the vacuum chamber is a closed chamber formed by the housing subjected to glass soldering edge sealing at atmospheric pressure and high temperature and high-temperature opening sealing in vacuum, welding portions of the edge of the low-carbon steel plate are provided with the sealing strips, the coefficient of thermal expansion of the low-carbon steel plate is matched with that of glass solder, the opening sealing is the automatic sealing of pumping holes preformed in the housing with low-temperature solder in a vacuum furnace according to the principle of liquid seal, and the getter is arranged in the vacuum chamber. A manufacturing method of the metal vacuum composite insulation panel with the sealing strips and the getter is simple in process. The manufactured metal vacuum composite insulation panel with the getter can overcome the deficiencies of existing insulation boards and vacuum insulation panels and the strength, thermal insulation, sound insulation and fireproof performance and decorative functions can be improved.

A microwave-welded flat tempered vacuum glass edge-sealed with sealing grooves and having a getter is characterized in that an upper glass and a lower glass are flat tempered glasses. A vacuumizing hole is arranged in the upper glass and a sealing cover is arranged on the vacuumizing hole. The getter is arranged in the vacuumizing hole. The upper glass is provided with a sealing bar and the lower glass is provided with the sealing groove. The upper glass and the lower glass are welded to each other in a microwave oven at a normal pressure through a low-temperature glass solder. The vacuumizing hole is automatically sealed in a vacuum oven through the seal cover and a metal solder. The getter is automatically activated during the sealing process. A vacuum layer, with a supporting object therein, is formed between the upper glass and the lower glass. The edge-sealing bar and the supporting object are composed of tempered glass printing ink and a high polymer. The high polymer is firstly prepared into a pre-polymer. The pre-polymer, after the glass being tempered, is manufactured on the glass or the tempered glass printing ink. The pre-polymer is solidified to form an elastomer at room temperature or a high temperature. The pre-polymer or the elastomer can automatically adapt with change of height of the vacuum layer. Volatile gas in the elastomer is exhausted from the elastomer at a high temperature and a high vacuum degree.

The invention discloses a glass welded composite vacuum plate with a getter. The composite vacuum plate comprises a panel, a connecting layer and a vacuum cavity, and is characterized in that the panel is made from either a metal plate or a metal composite plate, the panel and/or the connecting layer are used for providing additional strength to the vacuum cavity to ensure the smoothness of the vacuum cavity at barometric pressure, and the vacuum cavity is a closed cavity formed by carrying out glass welding at normal pressure and high temperature and sealing at high pressure to a low carbon steel plate; the sealing is that an extraction opening preformed in the vacuum cavity is automatically sealed by a low temperature solder in a vacuum furnace according to a liquid sealing theory, and a support and a getter are arranged in the vacuum cavity. A production method of the composite vacuum plate with the getter provided by the invention is simple in process, the defects of an existing insulation board and an existing vacuum insulated panel can be overcome, and the strength, heat insulation, sound insulation and fire resistance can be improved.

A flat tempered vacuum glass edge-sealed with sealing bars and sealing grooves and having a getter is characterized in that an upper glass and a lower glass are flat tempered glasses. A vacuumizing hole is formed in the upper glass and is provided with a seal cover. The getter is arranged in the vacuumizing hole. The upper glass is provided with a sealing bar and the lower glass is provided with a sealing bar and a sealing groove. The upper glass and the lower glass are welded to each other in an edge-sealing oven at a normal pressure through a glass solder. The vacuumizing hole is automatically sealed in a vacuum oven through the seal cover and a metal solder. The getter is automatically activated during the sealing process. A vacuum layer, with a supporting object therein, is formed between the upper glass and the lower glass. The edge-sealing bar and/or the supporting object are composed of tempered glass printing ink and/or a high polymer. The high polymer is firstly prepared into a pre-polymer. The pre-polymer, after the glass being tempered, is manufactured on the glass or the tempered glass printing ink. The pre-polymer is solidified to form an elastomer at room temperature or a high temperature. The pre-polymer or the elastomer can automatically adapt with change of height of the vacuum layer. Volatile gas in the elastomer is exhausted from the elastomer at a high temperature and a high vacuum degree.

The invention relates to a double-vacuum-layer glass getter sealed placement structure. The structure has the following characteristics: one round hole is drilled on each of the upper glass and the intermediate glass of vacuum glass, such that air-exhaust ports are prepared; one round pipe is prepared and is inserted in each of the air-exhaust ports; the lower parts of the round pipes are welded with glass, and the upper parts of the round pipes form sealing grooves with the air-exhaust ports; sealing caps are provided on the upper parts of the sealing grooves; the edges of the sealing caps are inserted into the sealing grooves; when the glass is edge-sealed; a getter is placed into the air-exhaust ports, and the ports are covered by using the sealing caps; a metal solder is placed in the sealing grooves or on the sealing caps; the air-exhaust ports are vacuumed and heated, such that the getter is automatically activated under high temperature and high vacuum, and also the metal solder is molten into liquid under the high temperature; the liquid is retained in the sealing grooves, and the edges of the sealing caps are immersed in the liquid; the air-exhaust ports are automatically sealed with a liquid sealing principle, and the getter is sealed in the vacuum layers. The method provided by the invention is suitable for mass productions. With the method, vacuum glass production efficiency and qualification rate can be greatly improved, and production cost can be reduced.

The invention relates to planar tempered vacuum glass which is edge-sealed by using sealing strips and which has a getter. The glass is characterized in that upper glass and lower glass are planar tempered glass. An air-exhaust port is provided on the upper glass. A sealing cap is provided on the air-exhaust port. The getter is placed in the air-exhaust port. Sealing strips are provided at the peripheries of the upper glass and the lower glass. The peripheries of the upper and lower glass are welded together by using a glass solder under normal pressure in an edge-sealing furnace. The air-exhaust port is automatically sealed in a vacuum furnace with the sealing cap and with a metal solder. The getter is automatically activated during the sealing process. A vacuum layer is formed between the upper glass and the lower glass. A supporter is provided in the vacuum layer. The sealing strips and/or the supporter is composed of tempered glass ink and/or a high-polymer. The high-polymer is first prepared into a pre-polymer. After the glass is tempered, the pre-polymer is prepared on the glass or on the tempered glass ink. The pre-polymer is cured into elastomer under room temperature or high temperature. The pre-polymer or elastomer can be automatically adapted to the changes in the height of the vacuum layer. Volatile gases in the elastomer can be eliminated under high temperature and high vacuum.

A metal vacuum composite panel with sealing strips and a getter comprises a housing, at least two core plates and a vacuum chamber and is characterized in that the housing is a low-carbon steel plate, the core plate is arranged in the vacuum chamber to provide the housing with additional strength to ensure the smoothness of the housing at atmospheric pressure, the vacuum chamber is a closed chamber formed by the housing subjected to glass soldering edge sealing at atmospheric pressure and high temperature and high-temperature opening sealing in vacuum, welding portions of the edge of the low-carbon steel plate are provided with the sealing strips, the coefficient of thermal expansion of the low-carbon steel plate is matched with that of glass solder, the opening sealing is the automatic sealing of pumping holes preformed in the housing with low-temperature solder in a vacuum furnace according to the principle of liquid seal, the getter is arranged in the vacuum chamber, and supporting members are arranged between the core plates. A manufacturing method of the metal vacuum composite panel with the sealing strips and the getter is simple in process. The manufactured metal vacuum composite panel with the getter can overcome the deficiencies of existing insulation boards and vacuum insulation panels and the strength, thermal insulation, sound insulation and fireproof performance and decorative functions can be improved.