116results about How to "Uniform air pressure" patented technology

The invention discloses an oxygen supply sizing agent groove system and a ceramic surface exposure 3D continuous printing method. The oxygen supply sizing agent groove system comprises an oxygen supply device, a base plate, a connecting pipe, an air-permeable thin film and a sizing agent groove which is of a cylindrical structure; an annular protrusion is horizontally arranged on the inner wall of the sizing agent groove, the upper surface of an annular groove is covered with the air-permeable thin film, the annular groove is formed in the lower surface of the annular protrusion, the base plate is fixed to the bottom of the sizing agent groove, an annular seal structure is defined by the annular groove and the base plate, and a seal chamber is defined by the base plate, the annular protrusion and the air-permeable thin film; multiple through holes are evenly formed in the side wall of the annular protrusion, the annular seal structure is communicated with the seal chamber through the through holes, one end of the connecting pipe is connected with the oxygen supply device, and the other end of the connecting pipe passes through the wall surface of the sizing agent groove and the side face of the annular groove and is inserted into the annual seal structure. By means of the oxygen supply sizing agent groove system, the bonding problem of ceramic biscuits and base plates can be effectively solved, and thereby the continuous ceramic printing is achieved.

The invention relates to a horizontal roller table type glass tempering cooling method during glass tempering production. According to the method, the equipment comprises a tempering cooling section and a roller table transmission mechanism, glass being subjected to a heat treatment in a heating section is conveyed into the tempering cooling section through the roller table transmission mechanism, the tempering cooling section is further provided with a sealed low temperature chamber, wind blowing cooling processes of an upper windshield and a lower windshield in the tempering cooling section on the glass are performed in the low temperature chamber, wind pressures of the upper windshield and the lower windshield on both sides of the glass are real-timely detected during a glass movement process in the channel of the low temperature chamber, and the glass can be at the stable state on the roller table by automatically adjusting the wind pressures of the upper windshield and the lower windshield on both sides through a controller. With the method, the treatment time of the tempering cooling section can be substantially shortened, and the air flow pressures required by the windshields on both sides during the cooling process are small, such that the control is easy, it is effectively ensured that the force applying during the glass tempering process is balanced, and the performance of the produced tempering glass is substantially improved.

The invention discloses a proton exchange membrane fuel cell metal bipolar plate. The metal bipolar plate comprises an anode unipolar plate and a cathode unipolar plate, wherein the anode unipolar plate and the cathode unipolar plate are correspondingly arranged. Two unipolar plates are provided with a fuel gas cavity, an oxidant gas cavity, a distribution area, a cooling medium cavity and an active zone respectively. Each active zone is composed of a flow field region and concavo and convex structures on both ends thereof, and a number of alternately arranged bumps and pits are uniformly distributed in two concave and convex structures. A discontinuous gas medium cavity flow channel and a hollow cooling medium cavity flow channel are formed between two concave and convex structures. Two ends of each gas medium cavity flow channel are communicated with a reaction gas cavity respectively. Two ends of each cooling medium cavity flow channel are communicated with the cooling medium cavityrespectively. According to the invention, the proton exchange membrane fuel cell metal bipolar plate solves the common problem of overall deformation caused by the fact that internal stress cannot beeffectively released during the existing metal bipolar plate stamping preparation. Compared with a bipolar plate in the existing structure, the metal bipolar plate provided by the invention has the advantages that gas and cooling liquid can be better distributed; and the problem that the groove depth is slightly shallow at the boundary of a flow field is effectively improved.

The invention relates to a clean rice cooker. The clean rice cooker comprises a cooker body, an inner container and a cooker cover, wherein a heating body is mounted on the inner bottom surface of the cooker body; the cooker cover is pivoted to the edge of the cooker body, air exhaust valves are arranged on the upper surface of the cooker cover, and wind pressure holes are formed in the side walls of the air exhaust valves; a defoaming screen is mounted on the lower surface of the cooker cover, and is composed of hollow pipes communicated with one another, and defoaming needle tubes are fixed at the nodes of the hollow pipes; ring-shaped air guide rings surround the edge of the defoaming screen; backflow holes are formed in the lower parts of the air guide rings; the air inlet ends of the air guide rings are communicated with the hollow pipes, and the air exhaust ends of the air guide rings are communicated with the wind pressure holes; a filter screen is further mounted below the defoaming screen. The clean rice cooker is novel in structure and simple in assemblies, can effectively prevent the overflow of air bubbles, is safe and stable in use process, and has relatively long service life.

The invention provides a washing machine comprising a filtering assembly configured to filter water pumped out of a washing drum of the washing machine to recycle the water into the washing drum for reuse, and an air pump configured to air wash the filtering assembly via air flows. An air inlet is formed in the bottom of the filtering assembly to receive air flows, so the filtering assembly can be air washed; and the air pump is arranged on the peripheral wall of a washing machine housing adjacent to the filtering assembly. Distribution positions and/or installation methods of the filtering assembly and the air pump are specially designed, so inside space of the washing machine can be fully utilized; the filtering assembly can be firmly and reliably installed and pressure of air flows pumped by the air pump is even, so the distance between an air inlet of the air pump and the air inlet of the filtering assembly can be shortened and air flow pressure loss can be reduced; and the filtering assembly can be well cleaned to restore primary performance state.

The invention relates to an electric power engineering pipeline connection construction method and a fuse machine for construction. The fuse machine for electric power engineering pipeline connectionconstruction comprises a fuse machine body, a main bearing device and an auxiliary bearing device, wherein the main bearing device and the auxiliary bearing device are arranged on the two sides of thefuse machine body correspondingly; and the main bearing device and the auxiliary bearing device comprise main bases and auxiliary bases, the auxiliary bases are arranged close to the fuse machine body, brackets are arranged on the auxiliary bases, feeding mechanisms used for driving electric power pipelines to advance in the arrangement direction of the main bases and the auxiliary bases are arranged on the main bases, and an overturning mechanism used for driving the electric power pipelines to rotate around the axial direction of the main base in the main bearing device is further arrangedon the main base in the main bearing device. According to the electric power engineering pipeline connection construction method and the fuse machine for construction, the overturning mechanism drivesthe short electric power pipeline to rotate on the main bases and the auxiliary bases to enable the end part of the electric power pipeline to be matched with the other electric power pipeline, so that the problem of inaccurate butt joint caused by local bending due to the dead weight of the electric power pipelines is effectively avoided, the matching accuracy of the two electric power pipelinesis improved, and the construction efficiency is improved.

The invention relates to the technical field of automatic assembly, and in particular, discloses an automatic assembly mechanism of a thin-wall device. The mechanism comprises a thin-wall piece feeding mechanism, an assembly body feeding mechanism, a thin-wall piece clamping and assembly mechanism and a driving mechanism, wherein the driving mechanism is used for driving the thin-wall piece clamping and assembly mechanism to operate between the thin-wall piece feeding mechanism and the assembly body feeding mechanism. The automatic assembly mechanism of the thin-wall device uses a porous sucker for combining with an air pump to grab thin-wall pieces, wherein each small hole can provide the suction; gaps between the adjacent holes achieve the effect of supporting the thin-wall pieces; as the porous structure guarantees uniform air pressure suffered by the thin-wall pieces during clamping, when the thin-wall pieces are clamped, the deformation of exceeding requirements cannot be generated; and the mechanism guarantees repeated positioning errors of the porous sucker through a three-point laser positioning method.

The invention discloses fire extinguishing agent filling equipment and a filling method thereof. The equipment comprises a vacuum pump, a first storage container, a first filling assembly, a second storage container, a second filling assembly, a third storage container, a third filling assembly, a fourth storage container and a fourth filling assembly. According to the fire extinguishing agent filling equipment, a fire extinguisher is vacuumized through the vacuum pump, and then the fire extinguisher is sequentially filled with at least one solvent stored in the second storage container through the second filling assembly, helium stored in the third storage container through the third filling assembly, at least one fire extinguishing agent stored in the first storage container through thefirst filling assembly, and nitrogen stored in the third storage container. According to the fire extinguishing agent filling equipment and the filling method thereof, vacuumizing and leakage detection are facilitated, the internal air pressure of the fire extinguisher is increased, the fire-extinguishing-agent filling pressure error caused by pipeline factors is effectively reduced, therefore thefilling efficiency is improved, and various filling requirements are met.

The invention discloses a gas feeding device and method of a vertical type diffusion furnace. The gas feeding device comprises a gas feeding pipe, a first balance pipe, a first flow valve and a second flow valve, wherein the first flow valve controls the flow velocity of reaction gas in the first balance pipe; as the diffusion directions of the reaction gas in the first balance pipe and the second balance pipe are different, the reaction gas conveyed from the first balance pipe to an in-furnace pipe can balance gas pressures at different positions in the in-furnace pipe, so that the gas pressures at different positions in a pipeline of the in-furnace pipe are equal; therefore, the flow velocity of the reaction gas at gas discharging holes in the in-furnace pipe is consistent; the reaction gas can be uniformly diffused to the surfaces of wafers at the different positions so as to keep consistency of growing thicknesses and quality of thin films on the surfaces of different wafers.

The invention discloses a construction method of an integrated roof joint structure. The construction method specifically comprises the following steps that corresponding detachable molds are customized according to the sizes of prefabricated walls, prefabricated flooding surface layers and prefabricated roof surface layers; the prefabricated walls, the prefabricated flooding surface layers and the prefabricated roof surface layers are numbered; the prefabricated walls, the prefabricated flooding surface layers and the prefabricated roof surface layers are processed; combined hanging pieces are installed at the expansion joints between the two adjacent prefabricated walls, the two prefabricated flooding surface layers and the two prefabricated roof surface layers, and expansion joint cover plates are buckled; the surface of a joint between the prefabricated walls and the concrete flange is sealed with weather-proof sealant; and completing and checking are carried out. A roof ceramic tile surface layer and a slope making layer adopt the prefabricated parts, the construction period is shortened while the project quality is guaranteed, and the cost is saved; and by integrally planning the walls, the ground and the installation project, the forming effect is attractive, and the roof leakage risk is greatly reduced.

The invention discloses a lubrication structure of a locomotive motor bearing. The motor comprises a rotating shaft, a bearing inner cover, a bearing, an end cover and a bearing outer cover, wherein the rotating shaft is supported on the end cover by the bearing, the bearing inner cover and bearing outer cover are respectively mounted on the inner and outer sides of the bearing, the rotating shaftextends outside the motor to cooperate with the gear box, the bearing inner cover is further provided with a first vent hole, the end cover is further provided with a second vent hole, the first venthole is communicated with the inside of the motor, the second vent hole is communicated with the outside of the motor, and the first vent hole cooperates with the second vent hole to treat the negative pressure generated by movement of the motor, which balances the internal and external pressures of the motor and ensures that the bearing lubricating oil only enters the motor bearing system when the motor is running, without entering the rotor and other parts.

The invention discloses a hydroponic flowerpot with a function of self-adding of a nutrient solution. The hydroponic flowerpot comprises a pot body, a hydroponic cavity is formed in the pot body, anda plurality of thread grooves are equidistantly formed in the side wall of the pot body; nutrient bottles are installed in the threaded grooves, elbow pipes are inserted into the groove bottoms of thethreaded grooves, and a liquid adding tube is jointly installed at the ends, away from the threaded grooves, of the elbow pipes; and a rubber plug is slidably installed in the liquid adding tube. Anannular semi-permeable membrane is used to enable hydroponic liquid and standard liquid to form a concentration difference and then an osmosis function occurs, an adjustment cylinder is used to realize the rise and fall of a standard liquid level in the adjustment cylinder after the osmosis function occurs, the air pressure in the adjustment cylinder is balanced by an elastic airbag, the interference of a floating plate moving up and down is reduced, a control tube is used to enable the floating plate and the rubber plug to rise and fall synchronously so as to open and block the liquid addingtube, so that the function of automatically adding the nutrient solution is realized, and the damage to plants due to error adding and less adding is avoided.

The invention relates to a novel automobile exhaust pipe. The novel automobile exhaust pipe comprises an exhaust pipe body. Connectors are installed on the exhaust pipe body. Air inlet pipes are connected to the connectors. A branched exhaust pipe body is connected to each air inlet pipe. A first filtering device is installed on each branched exhaust pipe body. A heat dissipation device is installed outside each branched exhaust pipe body. A second filtering device is installed on each branched exhaust pipe body. Exhaust holes A are formed in the tail end of each branched exhaust pipe body. A damping device is installed on each branched exhaust pipe body. Damping springs are installed inside each damping device. A damping device fixing frame is connected to the damping devices. A silencing device is connected to the tail end of each branched exhaust pipe body. A sound absorption plate is installed on each silencing device. A supporting plate is installed inside each silencing device. Exhaust outlets are connected to each supporting plate. Each exhaust outlet is provided with exhaust holes B. A filtering screen is installed inside each exhaust outlet. The novel automobile exhaust pipe has the advantages of being reasonable in design, simple in structure, convenient to install, firm in structure, good in silencing effect, high in heat dissipation speed, capable of purifying automobile tail gas and reducing noise pollution, comprehensive in function, safe, reliable and long in service life.

The invention provides a metal hydride reactor. The metal hydride reactor comprises multiple layers of reaction beds, and each layer of the reaction beds is provided with an upper layer structure anda lower layer structure in the superposition direction of the multiple layers of the reaction beds; the lower layers are composite material layers, and the composite material layers contain hydrogen storage alloys and/or metal hydride; the upper layer are heat conduction layers, and the heat conduction layers are used for absorbing heat generated by a reaction of the hydrogen storage alloys and hydrogen or providing heat for the reaction of the metal hydride; and a gap are formed between every two adjacent layers of the reaction beds, and hydrogen channels for conveying the hydrogen are formedin the gaps. According to the metal hydride reactor, a structure with the multiple layers of the reaction beds is arranged, the multiple hydrogen channels for conveying the hydrogen are further arranged, so that the circulation range of the hydrogen is enlarged, contact between the hydrogen and the hydrogen storage alloy and/or the metal hydride in the composite material layers is more sufficient, and reaction efficiency of the metal hydride is improved.

The invention belongs to the technical field of suction filtering treatment in chemical production, and particularly relates to a suction filtering tank and a suction filtering method. The suction filtering tank comprises a rectangular tank body with an upward opening, a filtering layer is arranged in the rectangular tank body, a material groove is formed in the upper portion of the filtering layer, a suction filtering cavity is formed in the lower portion of the filtering layer, the filtering layer comprises a filtering plate frame with one edge fixedly connected with the side wall of the rectangular tank body, a plurality of filtering plate holes for placing filtering plates are formed in the filtering plate frame, each filtering plate hole comprises a straight section for placing the filtering plates and a conical section with the inner diameter gradually decreased from top to bottom sequentially from top to bottom, a filling rubber strip is arranged at the upper end of the straightsection of each filtering plate hole, and a clamping seam is formed at the joint of the rectangular tank body and the filtering plate frame along the circumferential direction. The filtering layer further comprises a stainless steel filter screen covering the filtering plate frame, and an edge filter screen matched with the clamping seam is connected at the edge of the stainless steel filter screen. The suction filtering tank and the suction filtering method can realize multiple times of filtering, can increase material recovery rate and facilitate material fetching.