52results about How to "Solve the leaky seal" patented technology

A sealing device for an anode groove and a cathode roller of a crude foil engine is characterized in that a semi-arc-shaped lip sealing strip baseplate is fixed on the inner surface of a lining plate, a sealing plate base plate is fixed on the upper surface of the lip sealing strip baseplate, a lip sealing strip is located on one side of the upper surface of the lip sealing strip baseplate, the lower end of the lip sealing strip is embedded into a dovetail groove in the upper surface of the lip sealing strip baseplate to be fixed, a sealing plate is fixed on the upper surface of the sealing plate base plate, and one side edge of the sealing plate covers the upper surface of the lip sealing strip. The adopted polytetrafluoroethylene sealing plate is resistant to shock cooling and shock heating and chemical corrosion, has high lubricating non-sticky performance and favorable electric insulativity and ageing resistance, is combined with the lip sealing strip to make up for the shortcoming of high frictional resistance of an EPDM lip sealing strip, and replaces the EPDM lip sealing strip to be in contact with the cathode roller, so that the sealing is tight and reliable, the problem of side leakage of a PVC end plate is solved, and normal running of the cathode roller is guaranteed.

An air-intake control device of paint spray gun belongs to the technology field of paint spray gun, which includes the valve chamber setup in the middle of air-draft manifold assembly of the gun, the valve core setup at the valve spindle and offsetting spring. In the valve chamber there is a running-liner with the clack seat at one side, the valve spindle is setup in the through hole of the running-liner, the radial burn-out pipe connected with spraying lacquer out spout of the paint spray gun is setup at the through hole in the middle of the running-liner, one side of the valve spindle sticks out of the gun body after sealed by the sealed ring while at the other side of the valve spindle there is the valve core with offsetting spring outside combining with clack seat to open and close the induction trunk, at the other side of the offsetting spring there is a sealing cushion. This invention accounts for the problem of the valve chamber wall easy to leaking, the hermeticity of the products is good, the sealing member is not liable to attaint for the valve core and sealing member employ the corrosion resistant materials, and the life time of the product is long.

The invention relates to the technical field of valve devices, in particular to a one-way valve. A first elastic part is arranged on the inner wall surface of an inlet of a one-way valve body, and a baffle plate is arranged on the first elastic part and on the inner wall surface of the valve body on one side opposite to the inlet. The one-way valve solves the problem of untight locking in the locking process.

The invention belongs to the technical field of oil production equipment and particularly relates to a polarization-regulating energy-saving vertical sealing device. The device comprises a polished rod sealing device and a sealing device, a sucker rod is worn in the middle of the polished rod sealing device and the sealing device; the polished rod sealing device comprises an adjusting sleeve, a packing gland, a packing root, a supporting ring and a packing case, and the inner side of the upper end of the packing gland is provided with an inner stopper. The inner stopper is provided with a feltfor storing lubricating grease. The adjusting sleeve is provided with an oil hole sealing device corresponding to the felt. The sealing device comprises a driving sleeve, a press sleeve, a rubber sleeve and a lower joint. The partial energy-saving vertical sealing device subverts the radial sealing pattern of an existing sealing device, and adopts a vertical sealing pattern, which completely solves the problem that the wellhead sealing is not tight due to uneven force of the sucker rod in the existing sealing device, and the operation is also simpler.

The invention discloses an iron ore high-temperature performance measuring device, and the device comprises a frame mechanism, a lifting mechanism, a heating furnace mechanism, a chassis mechanism, agas distribution mechanism and a loading mechanism; the frame mechanism comprises a horizontal base and a vertical supporting frame installed at one end of the horizontal base; the lifting mechanism is arranged on the vertical supporting frame and can ascend and descend along the vertical supporting frame, and the heating furnace mechanism is fixedly connected with the lifting mechanism. A crucible is arranged on the chassis mechanism, and the chassis mechanism is arranged on the horizontal base and can move to the position below the heating furnace mechanism along the horizontal base; an airinlet pipe of the air distribution mechanism is communicated with an inner cavity of the chassis mechanism, and the loading mechanism extends into the heating furnace mechanism from the upper part toapply pressure to a sample in the crucible. The determination device can be used for taking and placing the crucible more safely, quickly and conveniently, so the detection of the high-temperature performance of the iron ore is safer, lower in consumption, quicker and more accurate.

The invention relates to a check valve. The check valve comprises a valve body and a valve element installed in the valve body, wherein a supporting spring is arranged on the bottom face of the valve element. The check valve is characterized in that first elastic parts are arranged on the inner wall face of an inlet of the valve body, and baffles are arranged on the portion, where the first elastic parts are opposite to the inlet, of the inner wall face of the valve body. According to the check valve, because the first elastic parts are arranged on the inner wall face of the inlet of the valve body, and the baffles are arranged on the portion, where the first elastic parts are opposite to the inlet, of the inner wall face of the valve body, the upward tension of the valve element is increased, and the problem that the check valve cannot be sealed tightly in the locking process is solved.

The invention discloses a constant volume combustion bomb device capable of turbulence movement simulation, and a control system for the constant volume combustion bomb device. The device comprises acylindrical hollow bomb body, wherein the two ends of the bomb body are sealed through a front flange, a rear flange, and a spark plug mounting seat; observation windows are distributed on the side wall of the bomb body; a pneumatic driving device and a porous plate are assembled in the bomb body; the spark plug mounting seat is fixed on the front flange; the pneumatic driving device is fixed on the rear flange; and the porous plate is arranged on the pneumatic driving device and carries out translational movements along the inner wall of the bomb body. The device and the system disclosed by the invention have the advantages that the pneumatic driving device mounted in a constant volume combustion bomb is used as a power source to drive the porous plate to move, so that turbulences can beproduced due to throttling effects after gas flows pass through the porous plate; the problem of high difficulty in sealing is radically avoided through the device, and better isotropic turbulences can be generated in the constant volume combustion bomb; and the device achieves a high response speed and is easy to implement.

The invention relates to a plug for sealing a signal line of an instrument probe, and belongs to the technical field of petroleum storage and transportation. The plug includes a plug seat having a through cavity and a plug gland attached to one end of the plug seat for sealing the through cavity, the plug gland comprising a gland body and a sealing gasket between the plug seat and the gland. A wire bolt is disposed on the sealing gasket, one terminal of the wire bolt is located in the through cavity, and the other terminal of the wire bolt is located outside of the gland body. The plug provided by the embodiment of the invention solves the problem of poor sealing effect caused by a signal line of an instrument probe directly passing through a sealing pad, and the lubricating oil can be completely sealed to ensure that the oil and gas are not leaked; waste of lubricating oil is avoided, the safety hazard of erosion of electronic components by lubricating oil and lubricant leakage is eliminated.

The invention discloses a sealing strip structure for sealing. The sealing strip is a long strip, and two end surfaces in the length direction of the sealing strip are glue coating surfaces (1); a plurality of V-shaped notches (2) are sequentially formed in one lateral side of the sealing strip; a plurality of V-shaped bulges (3) are arranged on the other side which is opposite to the side with the V-shaped notches (2); the positions of the notches (2) and the positions of the bulges (3) are in one-to-one correspondence. According to the sealing strip structure for sealing, through the manner that the notches are formed in one side, and the bulges are arranged on the other side, the sealing strip can be prevented from wrinkling at corners, and the problem that a ventilation door cannot be tightly sealed in an air conditioner structure is solved; therefore, the air leakage of the ventilation door is avoided; besides, the cost for using frame-type sponge design is reduced.

The invention provides a damping rotary seal multi-rotary-hammer crusher. The crusher comprises upper and lower bearing housings, driving and driven transmission shafts, driving and driven gears, a bearing block ventilation cover and a bearing block stuffy cover and is characterized in that a crusher barrel is cylindrical; the bearing housings are installed at the upper and lower parts of the crusher barrel respectively; the upper and lower bearing housings are respectively connected with the bearing block ventilation cover and the bearing block stuffy cover; upper and lower tapered roller bearings are installed in the upper and lower bearing housings; the driving and driven transmission shafts penetrate through the bearing block ventilation cover; the middle parts of the driving and driven transmission shafts are arranged in the crusher barrel; the bottoms of the driving and driven transmission shafts are connected with the bearing block stuffy cover; sanding hammers are installed on the transmission shafts respectively and are connected with the transmission shafts by splines; a wearproof liner is installed in the crusher barrel; a wearproof liner damping sleeve is inlaid in the outer wall of the wearproof liner; a rotary seal ring is fixed together with the driving and driven transmission shafts via rotary seal ring set screws. The crusher has the characteristics of improvement of the work efficiency, reduction of the energy consumption, damping and noise reduction.

The invention discloses a semiconductor laser, a semiconductor laser refrigeration structure and a manufacturing method of the semiconductor laser refrigeration structure. The semiconductor laser refrigeration structure comprises a lower cover piece, a water return piece, a water diversion piece, a micro-channel cooling fin and an upper cover piece which are sequentially arranged from bottom to top, wherein the upper cover piece comprises an insulating layer, a first step metal layer and a second step metal layer; the first step metal layer is arranged on the insulating layer; the second stepmetal layer is arranged on the insulating layer; the lower cover piece, the water return piece, the water diversion piece, the micro-channel cooling fin, the insulating layer and the second step metallayer are respectively provided with coaxial cooling water channels, and the peripheries of the cooling water channels are sealed by welding; the length of the upper cover piece is less than that ofthe micro-channel cooling fin, and the thickness of the second step metal layer is greater than that of the first step metal layer. According to the semiconductor laser adopting the semiconductor laser refrigeration structure, each semiconductor laser can be connected in a sealed welding mode to form a semiconductor laser array, and strict sealing among all the semiconductor lasers is achieved.

The invention discloses a gravel grading system comprising a powder selecting device, a centrifugal fan and a winnowing chamber. The powder selecting device comprises a static powder selecting deviceand a dynamic powder selecting device, an air inlet and an air outlet are formed in the static powder selecting device and the dynamic powder selecting device correspondingly, the centrifugal fan is connected with the air inlet through a first pipeline, and the winnowing chamber is connected with the air outlet through a second pipeline; an air return opening is further formed in the upper end ofthe winnowing chamber and connected with the centrifugal fan or the first pipeline through a third pipeline; and a feeding opening and a first discharging opening are formed in the upper end and the lower end of the static powder selecting device correspondingly, a second discharging opening is further formed in a conveying channel, and a third discharging opening is formed in the winnowing chamber. The air outlet of the device is connected with the air inlet of the fan, so that the closed cycle of a powder selecting system is realized, pollution to the environment can be reduced, meanwhile the power of the fan can be reduced, the effects of saving energy and reducing consumption are achieved, and the winnowing effect is improved; and a dynamic powder selecting machine can adjust the content of powder in a finished sand product to meet the requirement of controlling the component content of machine-made sand.

The invention discloses a technology for removing and leaching impurities in mixed liquor in the production of lutein factice, which relates to a technology part and an equipment part. The leaching technology comprises the following steps: an olefin pump is adopted to generate power, and two leaching tanks are used for circularly soaking and extracting; differential pressure is 1.5MPa-2MPa when liquor is poured; an evaporating tank No. 1 is adjusted to 50 DEG C-55 DEG C, and the evaporating time is not more than 10 minutes; and the opening degree between a liquor inlet valve and a liquor outlet valve of each filter is adjusted in such a way that the opening degree of the liquor inlet valve is smaller than that of the liquor outlet valve. The filter screen density of each of the three filters is A1 of 200 meshes, A2 of 350 meshes and A3 of 400 meshes; and the two adjacent filters are connected in a mixing way of parallel connection and series connection, two annular grooves are respectively processed in the position with not less than 5 cm of distance from the upper bottom and the lower bottom of a filter element, and a strip connecting groove is processed between the two annular grooves so as to form a filter screen mounting groove communicated by the three grooves. The impurity content of a lutein factice product is reduced to below 1 percent by technical measures of a technology aspect and an equipment aspect.

The invention discloses blank machining equipment for a graphite thermal field. The equipment comprises a bottom plate, arc-shaped vertical plates, sliding mechanisms, lifting mechanisms and a stirring mechanism, the two ends of the top face of the bottom plate are provided with a pair of arc-shaped vertical plates, a supporting plate is arranged between the two arc-shaped vertical plates, a crucible barrel is installed in a circular through hole, and the outer side face of the crucible barrel is sleeved with a heat preservation barrel. The two sides of the outer wall of the heat preservationcylinder are in sliding connection with the supporting plate through the multiple pairs of sliding mechanisms. The two ends of a circular cover plate are movably connected with the corresponding arc-shaped vertical plates through a pair of lifting mechanisms. The end part of a motor shaft of a motor and the stirring mechanism synchronously rotate. The invention further discloses a machining methodof the blank machining equipment for the graphite thermal field. The problems that a crucible is inconvenient to install and lift, a graphite material is non-uniformly stirred, and an opening of thecrucible is not tightly sealed are solved, through cooperative use of all mechanisms, the operation steps are simplified, the labor burden of workers is relieved, and the processing and production efficiency of the graphite material is improved.

The invention discloses a shut-off fan with good sealing effect, which comprises a shut-off fan body, the top and bottom of the shut-off fan body are connected with first pipes, and the surface of the first pipe is fixedly connected to an end far away from the shut-off fan body. There is a first fixing ring, the side of the first fixing ring away from the main body of the fan is fixedly connected with the second fixing ring, the side of the second fixing ring away from the first fixing ring is connected with a connecting pipe, and the first fixing ring is connected with a connecting pipe. The side of the two fixing rings away from the connecting pipe is communicated with a second pipe. The present invention achieves a good sealing effect by arranging the second pipe, the card slot, the circular baffle plate, the second sealing gasket, the first sealing gasket, the cantilever beam, the collar, the moving column, the limit ring, the spring and the handle to cooperate with each other. The advantages of the utility model solve the problem that the existing fan is not tightly sealed, so that when the fan is in use, it is not easy to leak air and run out of materials, which improves the practicability of the fan and is suitable for popularization and use.

The invention provides a U tube. A tube body is included, the tube body is of a dual-layer structure, the length of the outer-layer tube body is smaller than that of the inner-layer tube body, the outer-layer tube body and the inner-layer tube body are sealed on a port of the outer-layer tube body, a groove or outer-turning-side structure is arranged on the port of the outer-layer tube body. The Utube is simple in structure and ingenious in design, the problem that the U tube and warping fins are not tight in seal is solved effectively, and the tube is suitable for large-scale industrial production needs.

The invention discloses an aluminum-foil paper folding repairing machine. The aluminum-foil paper folding repairing machine comprises a shell, wherein a feeding hole is formed in the upper half part of one side face of the shell; a feeding track is obliquely and downwardly mounted at the feeding hole; a plurality of groups of cigarette cases are placed on the feeding track; an upper baffle is fixedly arranged in the shell and located above the feeding track; three groups of ash removal fans acting on the cigarette cases are mounted in the upper baffle at equal intervals; and an ultraviolet sterilization lamp is mounted at the bottom of the upper baffle and located on one sides of the ash removal fans. According to the aluminum-foil paper folding repairing machine, a seal is added to a cigarette case aluminum foil through a repairing mechanism, so that the problem of untight sealing is solved, and the cigarette packaging quality is improved. In addition, the repairing mechanism adopts amechanical and automatic design, and the combination of the ash removal fans and the ultraviolet sterilization lamp is designed for carrying out ash removal and sterilization on the outer side and the inner part of a cigarette case waiting for feeding in a sealed environment, so that the aluminum-foil paper folding repairing machine is suitable for different working conditions, and brings a better use prospect.