33results about How to "Seal applicable" patented technology

The invention discloses a magnetic liquid sealing device with a self-cleaning function, which belongs to the technical field of mechanical engineering sealing and comprises a shell (2), a left bearing (3), a left pole shoe (5) with a rubber seal ring, a permanent magnet (6), a right pole shoe (8) with a rubber seal ring, a right bearing (10), an adjusting gasket (11), a flange disk (13) and a shaft (14). The right end face of the right pole shoe and an axle line form an angle alpha of 10 to 80 degrees to change the shape of the right pole shoe and the magnetic field strength, so that the magnetic field strength on the side a of the right pole shoe is higher than that on the side b. According to Bernoullis equation, the pressure of the granules entering a magnetic liquid from outside on the side with high magnetic field strength is higher that on the side with low magnetic field strength, namely the pressure on the side a is more than that on the side b. The system generates a repulsive force to outside foreign materials so as to fulfil the aim of self cleaning.

The invention relates to an arched ring hard seal washer. The longitudinal section of the washer is in an arch shape, a curved bow circular arc is outward, a seal line is arranged on the curved bow circular arc, and a bowstring straight line is parallel to a pipeline. A convex ring table is arranged at the position of an arch handle of the longitudinal section, namely, the convex ring table is arranged in the center of the outer ring of the arched ring hard seal washer. The existing hard seal ring washer elliptical ring (comprising an octagonal ring) belongs to double-sided line sealing, can not be popularized due to high processing accuracy requirement and very high price, only can be used for special high temperature and high pressure occasions, can be only used for a flange and can not be used for loose joint. The seal washer provided by the invention is sealed by a circular arc line and is opposite to a trapezoid ring sealing system, but when an arched ring is applied to the flange, a locating table is omitted, and a locating groove does not need to be formed in the flange, so that the arched ring is especially suitable for sealing the flange.

The invention discloses a bonding and sealing method of a proton exchange membrane fuel cell stack and belongs to the technical field of fuel cell fabrication. The method particularly comprises the following steps of: I, preparing bipolar plates, and fixing flow channel carbon paper, anode carbon paper and the bipolar plates on a glue dispensing disk, II, setting a program of a dispenser for gluedispensing along the edges of anode plates, III, laying membrane electrodes and cathode carbon paper on the anode plates of the bipolar plates after the glue dispensing, and assembling into monocells,IV, stacking the assembled monocells into cell packs, and putting the stacked cell packs between two cell pack end plates for pressing and solidification, and V, fastening and assembling the solidified cell packs through electric collecting plates, stack end plates and screw rods into the stack. A proton exchange membrane fuel cell sealing technology and a stack assembly technology are simplified; and the method has the characteristics of simple technology, practicality, simplicity in operation and low cost and is applicable to the sealing and assembly of various fuel cells.

The invention discloses a preparation method of a joint sealing material. The preparation method comprises the following steps: a component A and a component B are prepared, a polyurethane prepolymer and a curing agent are prepared respectively, the component A and the component B are prepared in the weight ratio being 1:2 in a construction site, and joints are filled with a caulking gun. The polyurethane joint sealing material can be cured at the room temperature, has higher adhesive strength, good caulking performance and prominent expansion deformation capacity for expansion joints of a concrete structure, can be widely used for sealing of road joints and is especially applicable to sealing of concrete expansion joints of ballastless tracks of expressways.

The invention relates to single-component flexible sealing grease, which is mainly applied to the sealing of the cylinder junction surface of a steam turbine of a thermoelectric generator unit. The sealing performance of a junction surface of the thermoelectric generator unit can guarantee whether the unit can safely operate at high temperature and high pressure, but the prior sealing material fails to maintain the sealing performance at high temperature and high pressure. The sealing grease is characterized in that the sealing grease is a liquid pasty fluid at normal temperature, is easy to store and construct, and can be quickly cured when the sealing grease is heated to certain temperature; and a colloid is changed into a sealing material with certain toughness, can resist high temperature of 680 DEG C and high pressure of 320MPa, is surface chemistry resistant and anti-creeping, and can effectively prevent gas or liquid media from being leaked.

The invention discloses a novel environmentally-friendly cable splice closure sealant and a preparation method thereof, and belongs to the technical field of preparation of sealants. The sealant comprises silicone rubber, a flame retardant, butyl rubber, medium molecular weight polyisobutylene, low molecular weight polyisobutylene and an antioxidant. The preparation method comprises the followingsteps: S1, weighing: weighing the raw materials for later use; S2, kneading: adding and kneading the raw materials; S3, blending: blending the obtained kneaded rubber compound; and S4, extruding: extruding the blended rubber compound, and cooling and cutting the extruded rubber compound to obtain the novel environmentally-friendly sealant. The sealant of the invention has excellent adhesion, flameretardancy, filling property, sealing property, water resistance, high and low temperature resistance, acid resistance, alkali resistance, salt resistance and dielectric property; preparation materials of the sealant do not contain solvents or halogens, so the sealant is environmentally friendly; and the preparation method has the characteristics of simple production process, time saving and energy saving, and is suitable for industrial large-scale production.

The invention discloses a solid oxide fuel cell composite sealant comprising a solid glass component and a liquid glass component, wherein the weight ratio of the solid glass component is 50% to 80%,and the weight ratio of the liquid glass component is 20% to 50%. According to the solid glass component, with SiO2 as an organizer, one or more alkali metal elements and alkaline earth metal elementsare taken as modifiers. The liquid glass component is an aqueous solution of glass, SiO2 is an organizer of the glass for preparing the liquid glass component, and one or more alkali metal elements and alkaline earth metal elements are contained. The solid oxide fuel cell composite sealant is applied to the position between a fuel cell unit and other components of a battery pile and has the advantages of good sealing and high bonding strength. A sealing layer with high density and strength can be formed after the composite sealant is dried without pressure sintering, and the solid oxide fuelcell composite sealant is particularly suitable for the sealing of a tubular solid oxide fuel cell.

The invention discloses a sealing method, which seals a silicone rubber female die through a method of identical material, equipment and process vacuum casting. The sealing method comprises the following steps: (1), pretreating silicone rubber female die on manufacture equipment of the silicone rubber female die; (2), sealing the silicone rubber female die through the manufacture equipment of the silicone rubber female die; and (3), treating the sealed silicone rubber female die. The silicone rubber female die is subjected to identical material, casting equipment and casting equipment to realize the sealing of the silicone rubber female die subjected to die opening, additive deformation is hardly produced, the sealing effect is good, the method is convenient to operate, and large additive deformation is not produced to a model. Raw material which is the same with that of the silicone rubber female die is taken as sealing material, a sealing layer and the model can perfectly form a whole body, the leakage of casting fluid and deformation caused by high fastening force are avoided, the sealing success rate and the sealing quality are improved, the physical dimension of a photoelasticity model for female die casting is accurate, and the error is small.

The invention relates to a pressure-resistant rubber seal for a pipeline. The raw material formula comprises the following components: ethylene-propylene-diene monomer rubber, natural rubber, paraffin oil, aluminum oxide, stearic acid, an anti-aging agent AW, lignin, titanium dioxide, a quinone-oxime compound, lead dioxide and a lubricant. The seal ring provided by the invention has high resistance to compression deformation and can be used for sealing sockets of underground oil and gas conveying pipelines.

The invention belongs to the field of a mechanical industry. For the purpose of realizing the sealing effect through thread locking forces among parts and a material transformation preload. The invention provides a sealing device used in a liquid environment. The sealing device used in the liquid environment comprises a connection thread, a sealing thread, a delay tube, a centre tube and filler. The sealing and isolation effect can be realized depending on the locking force caused by the threaded connection between the delay tube and the connection thread, and the material transformation preload generated by pressing the centre tube through the treaded tightening of the sealing tread and the connection thread. Therefore, the sealing-limited structure because a larger sealing piece cannot be placed inside a limited space can be effectively overcome. With the adoption of the sealing device provided by the invention, the internal component can be effectively isolated and protected. The sealing device is especially applicable for sealing of an explosion component at the center of a water-based fire extinguishing bomb.

The invention discloses a movable sealing device and a use method thereof and belongs to the field of sealing pieces of mechanical devices. The movable sealing device comprises an outer ring body, an inner ring body and a rubber seal ring. The movable sealing device further comprises a limiting rod. The outer ring body and a bearing cover are fixed through bolts and can meet the demand for a large gap between a compression roller and a rotating shaft. The rubber seal ring is arranged in the inner ring body, so that the side, close to the rotating shaft, of the inner ring body is in tight contact with the rotating shaft. The two radial opposite outer sides of the inner ring body are of a plane structure. The limiting rod is arranged between the plane structure of the inner ring body and the outer ring body. When the rotating shaft and an end cover move, the inner ring body and the rubber seal ring in the inner ring body can horizontally move relative to the outer ring body, and then the seal function is achieved. The movable sealing device has the advantages of being simple in structure, reasonable in design, easy to manufacture and good in seal effect and is particularly suitable for seal between a movable piece and a fixed piece.

The invention relates to single-component flexible sealing grease, which is mainly applied to the sealing of the cylinder junction surface of a steam turbine of a thermoelectric generator unit. The sealing performance of a junction surface of the thermoelectric generator unit can guarantee whether the unit can safely operate at high temperature and high pressure, but the prior sealing material fails to maintain the sealing performance at high temperature and high pressure. The sealing grease is characterized in that the sealing grease is a liquid pasty fluid at normal temperature, is easy to store and construct, and can be quickly cured when the sealing grease is heated to certain temperature; and a colloid is changed into a sealing material with certain toughness, can resist high temperature of 680 DEG C and high pressure of 320MPa, is surface chemistry resistant and anti-creeping, and can effectively prevent gas or liquid media from being leaked.

The invention discloses a spring force storage type air channel valve for sealing. The spring force storage type air channel valve comprises a blocking cover (3), a lead screw, a seal ring and a motor (11) and further comprises a body (1), a fixed frame (2), a bearing bush, a ball head, a blocking ring, a pull rod and a compressed spring. During working, the fixed frame (2) is fixed to the body (1), and the lead screw stretches out or retracts relative to the body (1). Under the stretching-out working condition, the lead screw stretches out and pushes the blocking cover (3) downwards, so that the blocking cover (3) does not press an air channel inlet tightly any longer, and an air channel is opened. Under the retracting working condition, when the lead screw retracts to the in-place position, the seal ring makes contact with the air channel inlet and does not move any longer, meanwhile, the body (1) sends a in-place closing signal, after an external circuit receives the in-place closing signal, delaying is conducted for the specified duration, and electricity is turned off. After electricity of the external circuit is turned off, the lead screw stops moving, and at the moment, the compressed spring is in the force storage state and provides sealing compressed force all the time. The spring force storage type air channel valve has the characteristics that workload is low, the sealing compressed force can be controlled, the function is reliable, and process control is easy.

The invention discloses a building engineering waterproof structure, and particularly relates to the technical field of building engineering. The building engineering waterproof structure comprises a first wall body and a second wall body, wherein a lower splice plate is arranged between the first wall body and the second wall body, an upper splice plate is arranged at the top end of the lower splice plate, a sound insulation structure is arranged between the lower splice plate and the upper splice plate, and stable moisture-proof structures are arranged in one side of the first wall body and one side of the second wall body. By arranging a hollow cavity, fixing columns, sound insulation materials, threaded holes and locking bolts, during use, the hollow cavity is filled with the sound insulation materials, then the lower splice plate and the upper splice plate are locked and fixed through the threaded holes and the locking bolts, therefore the lower splice plate and the upper splice plate can have the sound insulation effect, noise generated when raindrops hit the top of the upper splice plate in rainy days cannot be conducted into a room, the sound insulation effect of the top of the house is enhanced, and practicability is high.

The invention discloses a magnetic liquid sealing device with a self-cleaning function, which belongs to the technical field of mechanical engineering sealing and comprises a shell (2), a left bearing (3), a left pole shoe (5) with a rubber seal ring, a permanent magnet (6), a right pole shoe (8) with a rubber seal ring, a right bearing (10), an adjusting gasket (11), a flange disk (13) and a shaft (14). The right end face of the right pole shoe and an axle line form an angle alpha of 10 to 80 degrees to change the shape of the right pole shoe and the magnetic field strength, so that the magnetic field strength on the side a of the right pole shoe is higher than that on the side b. According to Bernoullis equation, the pressure of the granules entering a magnetic liquid from outside on the side with high magnetic field strength is higher that on the side with low magnetic field strength, namely the pressure on the side a is more than that on the side b. The system generates a repulsive force to outside foreign materials so as to fulfil the aim of self cleaning.

The invention discloses a fluid transition water sealing device for a rotatable pipeline. The fluid transition water sealing device comprises sliding sleeves which are fixedly mounted on rotatable shaft heads and can rotate along the rotatable shaft heads, fluid transition pipes fixedly arranged through supporting seats, one end of each fluid transition pipe being connected internally to each sliding sleeve in a sleeving manner, and sealing mechanisms arranged between the fluid transition pipes and the sliding sleeves, wherein the sealing mechanisms comprise annular water storage tanks arranged along the circumferential directions of the outer walls of the fluid transition pipes, water supply tanks which are arranged on the outer walls of the fluid transition pipes and are communicated to the outside through the water storage tanks, and sealing rings arranged between the sliding sleeves and the fluid transition pipes; the water storage tanks are arranged between the rotatable shaft heads and the sealing rings. According to the fluid transition water sealing device, water protection layers can be formed between the sliding sleeves and the fluid transition pipes and can continuously drain water to one side of each rotatable shaft head, to effectively prevent mud from entering the sealing device; furthermore, cooling can be provided for the relative rotation motion between the sliding sleeves and the fluid transition pipes, and wear between the sliding sleeves and the fluid transition pipes can be effectively relieved; the fluid transition water sealing device is applicable to sealing for transition of all types of fluid.

The invention discloses a fluid transition water sealing device for a rotatable pipeline. The fluid transition water sealing device comprises sliding sleeves which are fixedly mounted on rotatable shaft heads and can rotate along the rotatable shaft heads, fluid transition pipes fixedly arranged through supporting seats, one end of each fluid transition pipe being connected internally to each sliding sleeve in a sleeving manner, and sealing mechanisms arranged between the fluid transition pipes and the sliding sleeves, wherein the sealing mechanisms comprise annular water storage tanks arranged along the circumferential directions of the outer walls of the fluid transition pipes, water supply tanks which are arranged on the outer walls of the fluid transition pipes and are communicated to the outside through the water storage tanks, and sealing rings arranged between the sliding sleeves and the fluid transition pipes; the water storage tanks are arranged between the rotatable shaft heads and the sealing rings. According to the fluid transition water sealing device, water protection layers can be formed between the sliding sleeves and the fluid transition pipes and can continuously drain water to one side of each rotatable shaft head, to effectively prevent mud from entering the sealing device; furthermore, cooling can be provided for the relative rotation motion between the sliding sleeves and the fluid transition pipes, and wear between the sliding sleeves and the fluid transition pipes can be effectively relieved; the fluid transition water sealing device is applicable to sealing for transition of all types of fluid.

The invention discloses a spring force storage type air channel valve for sealing. The spring force storage type air channel valve comprises a blocking cover (3), a lead screw, a seal ring and a motor (11) and further comprises a body (1), a fixed frame (2), a bearing bush, a ball head, a blocking ring, a pull rod and a compressed spring. During working, the fixed frame (2) is fixed to the body (1), and the lead screw stretches out or retracts relative to the body (1). Under the stretching-out working condition, the lead screw stretches out and pushes the blocking cover (3) downwards, so that the blocking cover (3) does not press an air channel inlet tightly any longer, and an air channel is opened. Under the retracting working condition, when the lead screw retracts to the in-place position, the seal ring makes contact with the air channel inlet and does not move any longer, meanwhile, the body (1) sends a in-place closing signal, after an external circuit receives the in-place closing signal, delaying is conducted for the specified duration, and electricity is turned off. After electricity of the external circuit is turned off, the lead screw stops moving, and at the moment, the compressed spring is in the force storage state and provides sealing compressed force all the time. The spring force storage type air channel valve has the characteristics that workload is low, the sealing compressed force can be controlled, the function is reliable, and process control is easy.

The invention discloses a using method of a movable sealing device and belongs to the field of mechanical device sealing pieces. The movable sealing device comprises an outer ring body, an inner ring body and a rubber sealing ring and further comprises a limiting rod; the outer ring body and a bearing cover are fixed through a bolt, and the requirement that a gap between a pressing roller and a rotating shaft is large can be met; the rubber sealing ring is arranged in the inner ring body so that the side, close to the rotating shaft, of the inner ring body can be in close contact with the rotating shaft; the two outer sides, opposite to each other in the radial direction, of the inner ring body are of a plane structure; the limiting rod is arranged between the plane structure of the inner ring body and the outer ring body; and when the rotating shaft and an end cover move, the inner ring body and the inner rubber sealing ring can horizontally move relative to the outer ring body so that the sealing function can be achieved. The movable sealing device has the beneficial effects of being simple in structure, reasonable in design, easy to manufacture and good in sealing effect and is especially suitable for sealing between a movable piece and a fixed piece.

The invention discloses a sealing adhesive for a cable joint box and a preparation method thereof, and belongs to the technical field of preparation of the sealing adhesive. The sealing adhesive comprises organic silicone rubber, high-molecular weight polyisobutene, medium-molecular weight polyisobutene, low-molecular weight polyisobutylene, inorganic filler, an antioxidant, carbon black as a coloring agent and a mothproofing agent. The preparation method comprises the following steps of: S1. weighing: weighing raw materials; S2. kneading: adding the raw materials for kneading; S3. blending: blending the kneaded sizing materials; S4. extruding: extruding the blended sizing materials, and then cooling and cutting to prepare the sealing adhesive for the cable joint box. The sealing adhesive disclosed by the invention has the advantages of excellent binding property, filling property, sealing property, water resistance, high-low temperature resistance, acid resistance, alkali resistance, salt resistance and dielectric property. The preparation method disclosed by the invention has the characteristics of health, environmental friendliness, simple production process, no solvent, time and energy conservation, low cost and suitability for industrial large-scale production.

The invention discloses an environment-friendly optical cable splice box sealant and a preparation method thereof, belonging to the technical field of sealant preparation. The sealant is composed of silicone rubber, flame retardant, butyl rubber, medium molecular weight polyisobutylene, low molecular weight polyisobutylene, anti- Oxidant composition, its preparation method comprises the following steps: S1. Weighing: Weigh raw materials, set aside; S2. Kneading: Add raw materials for kneading; S3. After the rubber material is extruded, it is cooled and cut to obtain an environmentally friendly sealant. The sealant of the present invention has excellent adhesion, flame retardancy, filling, sealing, water resistance, high and low temperature resistance, acid resistance, alkali resistance, salt resistance, dielectric properties, and its preparation material does not contain The method is solvent-free, halogen-free, environmentally friendly, and the preparation method has the characteristics of simple production process, time-saving and energy-saving, and is suitable for large-scale industrial production.

A vertical full-automatic endoscope cleaning and disinfection appliance belongs to the field of multifunctional medical cleaning and disinfection appliances. The cleaning and disinfection appliance comprises a disinfection appliance cabinet body, wherein a sealed door (4) and a control screen (5) are mounted outside the disinfection appliance cabinet body. The cleaning and disinfection appliance is characterized in that a cleaning cabin (1) is arranged at the inner upper part of the disinfection cabin body; a drainage outlet and a drainage valve (11) are arranged at the lower part of the cleaning cabin (1); two cleaning baskets are vertically mounted in the cleaning cabin (1) side by side; spraying arms (3) are respectively arranged and under the cleaning baskets (2); the spraying arms (3) are connected with an external cleaning and disinfection device; a plurality of change-over connectors (6) are arranged and mounted on the cleaning baskets (2), can be used for connecting tubular cavities of an endoscope, as well as an internal disinfection device and a blockage and leakage detection device. The vertical full-automatic endoscope cleaning and disinfection appliance can simultaneously clean two strips of soft endoscopes, can clean common surgical instrument, and meanwhile has more complete functions including blockage and leakage detection and drying.

The invention discloses a multi-layer rubber sealing ring sealing device, which is suitable for sealing the connection between the cavity mouth of the vacuum cavity and the cavity cover, and includes several rubber sealing rings, and a surrounding ring is provided at the vacuum cavity facing the cavity cover. The accommodating grooves at the mouth of the cavity and the rubber sealing rings are accommodated in the accommodating grooves one by one and protrude from the accommodating grooves. There is a cooling groove facing the cavity cover between adjacent accommodating grooves. A corresponding hollow cooling pipe is accommodated, and an air extraction channel is provided on the side wall of the vacuum cavity. One end of the air extraction channel communicates with external vacuum equipment, and the other end of the air extraction channel communicates with the cooling groove respectively. The object of the present invention is to provide a multi-layer rubber sealing ring sealing device with simple and compact structure, good anti-leakage performance and long service life with multi-layer sealing effect.

The invention discloses a preparation method of a joint sealing material. The preparation method comprises the following steps: a component A and a component B are prepared, a polyurethane prepolymer and a curing agent are prepared respectively, the component A and the component B are prepared in the weight ratio being 1:2 in a construction site, and joints are filled with a caulking gun. The polyurethane joint sealing material can be cured at the room temperature, has higher adhesive strength, good caulking performance and prominent expansion deformation capacity for expansion joints of a concrete structure, can be widely used for sealing of road joints and is especially applicable to sealing of concrete expansion joints of ballastless tracks of expressways.

The invention belongs to the field of a mechanical industry. For the purpose of realizing the sealing effect through thread locking forces among parts and a material transformation preload. The invention provides a sealing device used in a liquid environment. The sealing device used in the liquid environment comprises a connection thread, a sealing thread, a delay tube, a centre tube and filler. The sealing and isolation effect can be realized depending on the locking force caused by the threaded connection between the delay tube and the connection thread, and the material transformation preload generated by pressing the centre tube through the treaded tightening of the sealing tread and the connection thread. Therefore, the sealing-limited structure because a larger sealing piece cannot be placed inside a limited space can be effectively overcome. With the adoption of the sealing device provided by the invention, the internal component can be effectively isolated and protected. The sealing device is especially applicable for sealing of an explosion component at the center of a water-based fire extinguishing bomb.

The invention discloses a sealing and connecting structure for pile driving. The seal connection structure comprises a plurality of inter-pile sealing structures evenly distributed and a plurality of inter-pile connecting structures which are arranged between first sub pile bodies and second sub pile bodies of the pile bodies, and each inter-pile sealing structure is composed of a first sealing groove downward extending from the top of the first sub pile bodies and arranged on the upper side of the first sub pile bodies, and a second sealing groove downward extending from the top of the second sub pile bodies and arranged on the upper side of the second sub pile bodies; botches of the two sealing grooves are opposite, and each inter-pile connecting structure is composed of a concave connecting member downward embedded in the first sub pile bodies from the top of the first sub pile bodies, and a convex connecting member downward arranged in the second sub pile bodies from the top of the second sub pile bodies; and the embedding part of the convex connecting member is embedded into the cavity of the concave connecting member, so that the two sealing grooves are in butt joint to form an inter-pile water space filled with flexible filler, and an inter-pile closed space is formed in the cavity of the concave connecting member, and filled with grout for consolidation. The sealing and connecting structure disclosed by the invention has the advantages of simple structure, low cost, and high reliability and adaptability, and can be used for driving piles into soil quickly.

The invention discloses a method for bonding and sealing a proton exchange membrane fuel cell stack, which belongs to the technical field of fuel cell manufacturing. The specific steps include: 1. Prepare the bipolar plate, fix the flow channel carbon paper, anode carbon paper and bipolar plate on the dispensing tray; 2. Set the program of the dispensing machine and start dispensing along the edge of the anode plate; 3. Lay the membrane electrode and cathode carbon paper on the anode plate of the glued bipolar plate to assemble a single cell; 4. Stack the assembled single cells into a battery pack, and place the stacked battery pack on the Pressurize and solidify between the end plates of the two battery packs; 5. Fasten and assemble a plurality of cured battery packs into a stack with a power harvesting plate, a stack end plate and a screw. The invention simplifies the sealing and stack assembly process of the proton exchange membrane fuel cell, has the characteristics of simple process, practicality, simple operation and low cost, and is suitable for sealing and assembling of various fuel cells.