76results about How to "Reduced sealing surface" patented technology

A closure includes: (a) a base attached to an opening of a container, a conduit extending therethrough in fluid communication with contents of the container, a tubular spout guide defining a portion of the conduit, an annular deck extending radially inwardly from an inner circumferential surface of the base defining a central orifice in fluid communication with the conduit,;and (b) an annular spout mounted to the tubular spout guide for reciprocation between an open position and a closed position, the spout including (1) an annular wall and (2) a plug positioned radially within the annular wall; the plug has annular, outer circumferential seal surface that is received within, and plugs the central orifice of the deck; a portion of the seal surface of the plug is axially recessed or flush with the annular wall of the spout; the seal surface has either a cylindrical shape or a frustoconical shape.

A segmented packing ring 20 includes a number of first sealing segments 21, a number of second sealing segments 22, and a number of support segments 23, the support segments 23 and the second sealing segments 22 being arranged in an alternating successively abutting manner in the circumferential direction, and the first sealing segments 21 being arranged in a manner axially abutting the second sealing segments 22 and the support segments 23, and including a nose 24 extending axially on the second sealing segments 22, which is arranged in the circumferential direction between two adjacent first sealing segments 21.

The invention discloses a rotary furnace. The rotary furnace comprises a roller, and the feeding end of the roller is higher than the discharging end of the roller; the rotary furnace further comprises a feeding device, a discharging device, a driving device, a supporting device and a control device, wherein the feeding device communicates with the feeding end of the roller in a rotating and sealed manner, the discharging device communicates with the discharging end of the roller in a rotating and sealed manner, the driving device is arranged outside the roller and used for driving the roller to swing in a reciprocating manner around the rotation axis of the roller, the supporting device is arranged outside the roller and used for supporting roller in a rotating manner, and the control device is connected with the driving device through a wire and used for controlling the reciprocating swing radian of the roller. Due to the fact that the roller only swings within certain radian and does not rotate in the single direction, a device or a pipeline used for technological treatment can be arranged on the outer wall of the roller, swing of the roller cannot be limited, and treatments such as heating, cooling and reacting of materials are better promoted.

The invention discloses a purification method for oilfield reinjection water. According to the method, at least one level of membrane filtration treatment is carried out on oilfield produced water through a cellular carrier type inorganic carbon membrane component so as to prepare the reinjection water suitable for low permeability and extra-low permeability oil reservoirs, wherein the filter precision of the membrane component for membrane filtration treatment is 0.001-100mu m. The purification method has high filtration accuracy, the membrane flux of the compound carbon membrane carrier is large, the capacity of the membrane in resisting oil contamination is strong, the integration level of the structure of the membrane core is high, the quality of the prepared reinjection water is stable, and fine filtrated oilfield reinjection water meets the requirement of the reinjection water for the oil reservoirs in low permeability and extra-low permeability block, and meets the A-grade standard of 'recommended index and analysis method for quality of oil reservoir injection water of clastic rock' (SY / T 5329-94).

The invention relates to a disc brake (1), preferably a compressed air-actuated disc brake, in particular for a motor vehicle, having a brake application mechanism with a brake rotary lever (11), at least one spindle unit, each of which comprises a threaded rod screwed into a bridge, and a brake caliper (6), in particular a sliding caliper, which preferably covers an edge region of a brake disc (2) in the manner of a frame, said brake caliper (6) comprising a brake application portion (6a) and a caliper back (6b) which are connected together via tie bars. The brake application mechanism with the brake rotary lever (11) is received on an application face (ZS) of the brake disc (2) in the brake application portion (6a) of the brake caliper (6), and the brake application portion (6a) of the brake caliper (6) receives a first region, in which the application mechanism and a force transmission portion of the brake rotary lever (11) are arranged, a second region, which is formed as a lever housing (6e), and a lever portion of the brake rotary lever (11). A support wall (62) with a bearing portion (66), which forms a pivot bearing with a brake rotary lever axis that runs parallel to the brake disc (2), for the brake rotary lever (11) is arranged between the first region and the second region.

The present invention relates to one kind of four stroke top placed cam type engine, and belongs to the field of power plant technology. The engine includes mainly an engine body comprising integrated cylinder head, cylinder barrel, upper crankshaft half box and chain chamber, a combustion chamber formed on the cylinder barrel; an inlet valve and an exhaust valve separately on two sides of the cylinder axis; a cam shaft between the inlet valve and the exhaust valve; and a rocking arm shaft between the inlet valve rocking arm and the exhaust valve rocking arm. The present invention has reduced sealing area, light weight, improved heat dissipation, reduced size and raised reliability.

The invention discloses a purifying method of condensed water. The purifying method comprises the steps of adopting a honeycomb-shaped carrier type inorganic carbon membrane assembly to carry out at least one stage of membrane filtering treatment on high-temperature condensed water, wherein the filtering accuracy of the membrane assembly treated by membrane filtering is 0.001-100mum, and preparing the boiler supplementing water suitable for recycling. The purifying method disclosed by the invention has the advantages that the filtering accuracy is high, the membrane flux of a honeycomb-shaped carrier type membrane core is large, the impact resistance of incoming water is strong, the resistance to oil pollution is strong, the integration level of the membrane core structure is high, the preparation method is simple, a complex online discrimination system is not needed, and the prepared condensed water is stable in quality and high in temperature, meets the requirement on water quality of the boiler supplementing water and saves a great amount of heat.

A check valve includes an internal liquid trap that prevents the backflow of gas and debris from degrading the valve. The internal liquid trap can be formed by internal passages within a valve housing. One embodiment includes a plurality of concentric fluid passages, connected by a set of radial conduits.

A check valve includes an internal liquid trap that prevents the backflow of gas and debris from degrading the valve. The internal liquid trap can be formed by internal passages within a valve housing. One embodiment includes a plurality of concentric fluid passages, connected by a set of radial conduits.

The invention relates to a design method of a water electrolysis hydrogen-oxygen generation device, in particular to a design method of a combined electrolytic tank. The electrolytic tank is characterized by being formed by sleeving and combining an anode, electrodes and a cathode in turn, particularly formed by sleeving two or eight tubular electrodes (4) with different tube diameters between a round anode (2) and a tubular cathode (8) at equal intervals in turn. The electrolytic tank has high anti-detonating property and sealing performance, a small sealing surface and a simple structure and is convenient to assemble and disassemble, electrolyte is difficult to leak, and the manufacturing cost is reduced.

The invention discloses a brushless joint-control motor soft starter used for a wound-type alternating-current asynchronous motor. Compared with the conventional brushless self-control soft starter, the brushless joint-control motor soft starter has the characteristics that: the joint sequence control of a water resistor, a shorting switch and a safety exhaust valve avoids a liquid spray phenomenon; 2, the water resistor adopts a graphite pole plate and is contacted before the shorting circuit, so that the electro erosion of the pole plate of the water resistor is reduced, the phenomenon of the fusion welding of a moving contact and a fixed contact of the shorting switch is avoided; 3, the on and off states of the shorting switch are controlled by two units respectively, so that the jumping phenomenon of the moving contact and the fixed contact is avoided, and the contact pressure of the contacts is improved; 4, the contact time of the shorting circuit and the water resistor can be conveniently regulated after leaving a factory, so that the adaptability is improved; 5, a safety valve and an exhaust valve are integrated and are linked with the shorting switch, so that the number of seal surfaces is reduced and the starter is convenient to maintain; and 6, according to different users, different implementation modes can be adopted, and the manufacturing cost is reduced.

The invention provides a connection structure of a conductive rod and a winding lead of a transformer and is characterized in that the structure comprises a lead wiring board which is connected between the conductive rod and the winding lead and which is formed by two flanges vertical to each other and fixed integrally as a whole, and a flange provided at the bottom end of the conductive rod in opposite to the lead wiring board. The invention has the advantages of simple wire connection, no need of a lead connection hand hole on the lateral side of the transformer cover, reduced seal area of the transformer tank, reduced leakage of transformer oil, convenient maintenance, and no need of oil discharge from the transformer tank.

The invention discloses a device and a method for measuring a void fraction of in-tube cryogenic fluid. The device comprises a measuring zone tube shell, a capacitance acquisition circuit board, a connecting pipeline, a conductive pin, a polytetrafluoroethylene insulation sleeve, an electrode plate and a sealing copper ring. According to the device, by utilizing the characteristic that the polytetrafluoroethylene shrinks at a low temperature, the connecting pipeline is shrunk and locked at the low temperature, and seal is enhanced. Meanwhile, aiming at the characteristic that the liquid gas dielectric constants of the cryogenic fluid are close, the measuring zone tube shell serves as a skeleton of the measuring section and is grounded to serve as a shielding case. The electrical capacitance tomography device for cryogenic fluid has the characteristics that the device is simple in structure, can be rapidly detached, and can be conveniently connected with other pipelines of the system; the device can be applied to a wider range from a room temperature to a cryogenic temperature, and the measurement accuracy is not influenced due to repeated great temperature cycling; and the device is excellent in stray capacitance resistance and excellent in electromagnetic shielding effect. According to the measuring method disclosed by the invention, the measured capacitance value is associated with the void fraction by utilizing a support vector regression manner, and the obtained fitting result is high in accuracy.

The invention discloses a reactor for hydrogen production through decomposition of hydroiodic acid and a hydrogen production method of the reactor and belongs to the technical field of chemical equipment and hydrogen production. The reactor is a U-shaped tubular heat exchange reactor and comprises a channel, a tube plate, a barrel, a U-shaped reaction tube and other components. Parts making contact with hydroiodic acid such as the U-shaped tube is made of corrosion-resistant silicon carbide or nickel base alloy, and the nickel base alloy comprises HastelloyB, C or X series alloy; parts makingno contact with hydroiodic acid such as the barrel is made of martensitic steel, austenitic steel or nickel base alloy. The hydrogen production method comprises the steps as follows: the U-shaped tubular heat exchange reactor is used as a hydroiodic acid decomposition reactor, a catalyst is placed in the U-shaped tube, high-temperature helium or high-temperature molten salt enters the barrel via aheating medium inlet, and reaction material hydroiodic acid is introduced into the U-shaped tube for decomposition for hydrogen production. The reactor only comprises one tube plate and few sealing surfaces and has better heat transfer performance and high loading capacity. The hydrogen production method is simple, feasible and reliable in operation.

Provided is a biomass rotary propulsion pyrolysis device. The device comprises a pyrolysis device body, the pyrolysis device body is connected to a rotary device, and comprises a feed pipe (1), a discharge pipe (8) and several pyrolysis pipes (4), the outlet of the feed pipe (1) is fixedly connected to the inlets of the several pyrolysis pipes (4) separately, the outlets of the several pyrolysis pipes (4) are fixedly connected to the inlet of the discharge pipe (8) separately, the feed pipe (1) is internally provided with a feed helical blade (2), the discharge pipe (8) is internally provided with a discharge helical blade (9), the pyrolysis pipes (4) are internally provided with pyrolysis helical blades (5), and several means one or more. Through the biomass rotary propulsion pyrolysis device, the problem of pool sealing caused by a complicated mechanism in which the helical blades need to rotate and transmit solely is solved, and the device has good economic and environmental protection effects.

The invention belongs to the field of mechanical structures, and in particular relates to an oil conservator capsule damage monitoring device for a transformer. The device comprises an oil conservator, a capsule, a connection tube, an oil level indicator and a moisture absorber; the capsule is arranged in the oil conservator; a cavity structure used for filling the oil layer of the transformer is arranged in the oil conservator; one end of the capsule is connected with the oil conservator; the bottom of the other end of the capsule floats on the surface of the oil layer of the transformer; the capsule is connected with the moisture absorber through the connection tube; the moisture absorber is arranged outside the oil conservator; the device comprises a monitoring module; the monitoring module is arranged on the top of the oil conservator; the monitoring module comprises a floater and an alarm structure; the floater is used for inducing pressure change in the oil conservator; the alarm structure is used for giving an alarm; and the floater is arranged in the cavity structure. According to the oil conservator capsule damage monitoring device for the transformer disclosed by the invention, the monitoring device is set and used; therefore, by utilization of the principle that air accumulates at the upper part of the oil conservator to drive the floater to move after the capsule is damaged, the buoyancy forces of the floater in oil and air are different; whether air enters the oil conservator or not is measured, so that whether the capsule is damaged or not is judged; the alarm structure is triggered to given an alarm; and thus, capsule damage monitoring is realized.

The invention discloses a spoke casting mould which comprises an upper mould body connected to an upper mould mounting plate and a lower mould body connected to a lower mould mounting plate. An upper mould ring is arranged on the periphery of the upper mould body, the upper end face of the upper mould ring is fixedly connected with the upper mould mounting plate, and the lower end face formed by combining the upper mould ring and the upper mould body is matched with the upper end face of the lower mould body. According to the spoke casting mould, the upper mould ring and the upper mould body are tightly matched, the sealing face between the upper mould body and the lower mould body is reduced, the phenomena of aluminum flowing and flange generating are effectively avoided, raw materials are saved, the manufacturing cost of a spoke is reduced, the difficulty of follow-up cleaning work is reduced, and the manufacturing period of the spoke is shortened. The upper mould body is surrounded by the upper mould ring, the temperature maintaining effect is obviously improved, the time for repeatedly heating the mould is greatly shortened, energy consumption is reduced, and the manufacturing cost of the spoke is reduced.

The invention discloses a casting die which comprises an upper die connected to an upper die mounting plate, a lower die connected to a lower die mounting plate, and a sprue gate. The casting die is characterized in that an upper die ring is arranged on the periphery of the upper die, the upper end surface of the upper die ring is fixedly connected to the upper die mounting plate, a lower end surface formed by combination of the upper die ring and the upper die is matched with the upper end surface of the lower die, and a filter device matched with the sprue gate is arranged in the sprue gate. The casting die has the advantages that aluminum spilling and flashing are reduced effectively, raw materials are saved, manufacturing cost of castings is lowered, difficulty of subsequent cleaning work is reduced, and manufacturing cycle of the castings is shortened. As the upper die is encircled by the upper die ring, heat insulation effect is improved obviously, time for reheating the die is shortened greatly, energy consumption is reduced, and manufacturing cost of spokes is lowered. Since the sprue gate is provided with a filter screen, slag inclusion rate of the molded castings is reduced to 5-8%, quality of the molded castings is improved, and yield of the castings is increased.

A system for pumping fluid (e.g., but not limited to, drilling fluid), the system having pump apparatus; including a plurality of removable pump modules; and, in certain aspects, removable valve cartridges for such modules.

An electrically insulating resin frame is provided on an outer peripheral side of a power generation section of a membrane electrode assembly forming a fuel cell of a fuel cell stack. A seal bead protruding toward the resin frame is formed on a metal separator. A metal sheet is provided in a portion of the resin frame overlapped with the seal bead as viewed in the stacking direction.

The invention discloses a piston type hydraulic chuck which comprises a shell, wherein a chuck body is arranged at one end of the shell, and an end cover is arranged at the other end of the shell; a clamping device for clamping a drill rod is arranged in the chuck body and comprises multiple slips distributed along the peripheral direction of the chuck body, multiple pistons for compressing the slips and a spring group used for opening the slips and arranged between the adjacent slips; the pistons are in one-to-one correspondence to the slips; and a high-pressure oil cavity convenient for hydraulic oil to push the pistons to move is arranged between the chuck body and the shell. The piston type hydraulic chuck also comprises a slagging loop which comprises a slag holding cavity arranged between the slips and a slagging channel arranged between the chuck body and the end cover and communicated with the slag holding cavity. The piston type hydraulic chuck disclosed by the invention can solve the problem of accumulation of impurities such as coal slag inside a chuck, and has the advantages of few moving parts, convenience in maintenance and high reliability.

In a starter, a motor terminal is composed of a rigid body made of metal, supported by a grommet, and welded to a connection bar in order to construct a terminal assemble (ass'y). The terminal assemble is constructed into a yoke assemble under the grommet is attached to an opening part of the yoke and the connection bar is welded to an end part of a field coil. An interval between a sealing surface of the grommet and the motor terminal in the yoke assembly, namely before constructing the yoke assembly is smaller than an interval between in the terminal assembly, namely, before constructing the yoke assembly. The grommet has thereby a water proof capability because the grommet is pressed not only the end frame side but also toward the yoke side through the motor terminal when the grommet between the yoke assembly and the end frame is fastened or compressed by through-bolts.

The invention provides an integrated multi-row high-pressure radial multi-plunger type variable pump, and belongs to the technical field of hydraulic pump equipment. The integrated multi-row high-pressure radial multi-plunger type variable pump is composed of an eccentric shaft, a bearing, a pump body, plungers, plunger sleeves, a fastening block, a fastening screw, a one-way valve and a pressurerelease valve, the eccentric wheel on a transmission shaft performs eccentric motion to drive the plungers to perform reciprocating motion so as to extrude cavity spaces inside the plunger sleeves, high-pressure oil is extruded, and the flow direction of the oil and the oil pressure are controlled through the one-way valve and the pressure release valve. The plunger pump is novel in structure, a traditional radial plunger pump is large in radial size, and small in axial size, in the case of the integrated multi-row high-pressure radial multi-plunger type variable pump, the two rows of plungerassemblies are arranged on one pump body, so that the structural advantages of the radial plunger pump are effectively exerted, the output power is also increased, the effect that the two plunger pumps work together is achieved, moreover, compare with the structure of adopting the two plunger pumps, the variable pump has the advantages that the weight and the size are smaller, the production costis lower, the sealing surface of the variable pump is relatively reduced, and the leakage is reduced.

The invention relates to an electronic device (1) having a can housing (3) and a method for producing the same. The can housing (3) has an open end face (4). A plug-in unit (5) can be inserted into the can housing (3) through the end face (4). The plug-in unit (5) comprises a populated circuit board (6) and a multicontact connector (7). The can housing (3) comprises an integrated connector collar (8), which integrally extends the can housing (3) and surrounds the multicontact connector (7) and contact elements (9). The connector collar (8) forms a fit for a mating connector. The insert comprises the circuit board (6) and a contact carrier (10) having the multicontact connector (7) without the connector collar (8). The outer contour (11) of the contact carrier (10) is at least partially matched to the inner contour (12) of the connector collar (8).

The invention relates to a water electrolysis hydrogen-oxygen generation device, in particular to a design method of a single-tube electrolytic tank. The electrolytic tank is characterized by being formed by sleeving two to eight tubular electrodes (4) with different tube diameters between a round anode (2) and a tubular cathode (8) at intervals in turn, wherein the tubular cathode (8) is a single-tube tank body, and the diameter of the tubular cathode (8) is greater than the diameters of other tubular electrodes (4) and the round anode (2); and the round anode (2) is arranged at the central position of the tank body and is tubular or cylindrical. The invention has the characteristics that: the electrolytic tank has high anti-detonating property and sealing performance, a small sealing surface, a simple structure and low cost, and is convenient to assemble and disassemble, electrolyte is difficult to leak, and the like.

The invention discloses a piston type hydraulic chuck which comprises a shell, wherein a chuck body is arranged at one end of the shell, and an end cover is arranged at the other end of the shell; a clamping device for clamping a drill rod is arranged in the chuck body and comprises multiple slips distributed along the peripheral direction of the chuck body, multiple pistons for compressing the slips and a spring group used for opening the slips and arranged between the adjacent slips; the pistons are in one-to-one correspondence to the slips; and a high-pressure oil cavity convenient for hydraulic oil to push the pistons to move is arranged between the chuck body and the shell. The piston type hydraulic chuck also comprises a slagging loop which comprises a slag holding cavity arranged between the slips and a slagging channel arranged between the chuck body and the end cover and communicated with the slag holding cavity. The piston type hydraulic chuck disclosed by the invention can solve the problem of accumulation of impurities such as coal slag inside a chuck, and has the advantages of few moving parts, convenience in maintenance and high reliability.

The invention discloses a method for separating and purifying a terephthalic acid with Cuban shell type rotary drum filters. The invention also discloses a method for separating and purifying a terephthalic acid with one Cuban shell type rotary drum filter. The invention also a method for separating and purifying a terephthalic acid with a Cuban shell type rotary drum filter together with one or a plurality of a sedimentation type centrifuge, a rotary vacuum filter, a rotary pressure filter, etc.

The invention discloses a temperature adjusting device of a cooling system of a diesel engine. The temperature adjusting device of the cooling system of the diesel engine comprises a first water inlet, a second water inlet, a large circulation channel water outlet, a small circulation channel water outlet, first bases, second bases, a large device seat circulation channel and a small device seat circulation channel. The temperature adjusting device of the cooling system of the diesel engine is characterized in that the large circulation channel and the small circulation channel are cast on the temperature adjusting device; the temperature adjusting device is provided with the three bases which are used for installing a thermolator and can meet the requirements for large cooling fluid flow of a large discharge capacity diesel engine; and left and right rows of cooling water pipes are simultaneously integrated on a thermolator cover. According to the temperature adjusting device of the cooling system of the diesel engine, compared with the prior art, the large circulation channel and the small circulation channel are simultaneously cast into the same part, so that the number of parts is reduced, sealing surfaces are reduced, and accordingly the hidden trouble of cooling fluid leakage is reduced; the thermolator cover and the cooling water pipes are simultaneously cast into the same part, so that left and right rows of cooling fluid pipes are simultaneously met and parts are reduced; and clamps can meet the sealing requirements and are convenient to install.

The invention discloses an engine intake manifold with a cooler inside and high tightness. The engine intake manifold has a shell, and is characterized in that the shell includes an upper cover, a lower cover and a cooling liquid guide cover; the upper cover and the lower cover are connected through a sealing structure to form an assembly cavity therebetween; the assembly cavity is used for assembling and accommodating the cooler; the cooler divides the assembly cavity into two independent gas chambers; the cooling liquid guide cover covers the shell, and is tightly connected with the shell to form a closed gas chamber between the cooling liquid guide cover and the cooler in the shell; the cooling liquid guide cover is provided with a cooling liquid lead-in pipe and a cooling liquid lead-out pipe corresponding to a water inlet and a water outlet of the cooler; the cooling liquid lead-in pipe is tightly connected with the water inlet; and the cooling liquid lead-out pipe is tightly connected with the water outlet. The engine intake manifold has the advantages of simple structure, good sealing effect, high heat exchange efficiency, small size and light weight.