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

The invention relates to a food cutting device, in particular to a dried bean curd cutting device beneficial to flavor infusing. The dried bean curd cutting device comprises a pressing plate and a handle arranged on the pressing plate, and is characterized in that the pressing plate is in polygon shape, criss-cross blades are perpendicularly arranged on the lower portion of the pressing plate, cutting pieces are connected to the side faces of the pressing plate through bolts, strip-shaped adjustment holes connected with the bolts are vertically formed in the cutting pieces, the pressing plate and the handle are of an integrally-formed hollow structure, an air bag is arranged below the handle and communicated with the hollow structure, and vent holes communicated with one sides of the blades are formed in the portion, above the pressing plate, of the hollow structure. By means of the scheme, the dried bean curd cutting device is high in cutting speed and capable of conveniently conducting cutting.

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 the field of paper making machinery, in particular to a high-speed strong dehydration cylinder paper making machine. The cylinder paper making machine comprises a rack, a woolen blanket optimizing mechanism, a coucher mechanism, a mesh cage mechanism, a carrier roller mechanism, a drying cylinder mechanism and a woolen blanket, wherein the carpet circularly rotates via the woolen blanket optimizing mechanism, the coucher mechanism, the mesh cage mechanism and the carrier roller mechanism sequentially, a pressing roller is arranged at the right side of the mesh cage mechanism, and after passing the coucher mechanism, and the woolen carpet is pressed by the pressing roller to be tightly attached to the mesh cage mechanism to rotate; the mesh cage mechanism is a cylinder paper making machine suction negative-pressure mesh cage; the carrier roller mechanism includes a carrier roller pressurization mechanism and a cylinder paper making machine special three-suction area vacuum carrier roller. According to the high-speed strong dehydration cylinder paper making machine, the whole vehicle speed can be obviously accelerated, the energy input is saved, and the production efficiency is obviously improved; meanwhile, the filling power and the water-absorbing performance of a paper product are better, the additional valve of the product is increased, and more economic benefit is made for an enterprise.

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 the technical field of oxygenerators, in particular to a portable oxygenerator, which comprises a shell and an oxygenator main body placed in the shell. The oxygenator main body comprises two parallel adsorption towers, which are flat cylindrical structures and filled with molecular sieves in the inner cavities, the two adsorption towers are erected on both sides of the oxygenator main body oppositely, a compressor, an oxygen storage tank, a circuit board, an air intake module and a corresponding bracket and connection pipeline are placed between the two adsorption towers, air distribution structures are disposed between all adsorption tower air inlets and the molecular sieves, the air distribution structures include air distribution nozzles and flow equalization sieve plates for air distribution and flow equalization, so that the gas entering the adsorption towers can achieve a uniform pressure in the adsorption towers. The portable oxygenerator provided by the invention has the beneficial effects of compact space structure, small size, light weight and easy carrying, also the atmospheric pressure in the adsorption towers is uniform and the molecular sieveutilization rate is high.

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 belongs to the technical field of energy storage equipment. The temperature control system of the energy storage container is used for cooling a battery box in the energy storage container, and comprises at least two battery rack groups which are arranged side by side, each battery rack group comprises a plurality of battery racks which are arranged side by side, and each battery rack group is provided with a plurality of accommodating spaces for accommodating the battery box; one of a static pressure bin and an air exhaust bin is arranged between every two adjacent battery racksin each battery rack group, the static pressure bins and the air exhaust bins are alternately distributed, and air exhaust holes are formed in the air exhaust bins; the two opposite sides of the containing space are correspondingly communicated with the static pressure bin and the exhaust bin respectively. The cold air assembly comprises a refrigerating device and an air supply pipe, an air storage bin is arranged between every two adjacent battery rack sets, the air storage bins are communicated with the static pressure bins respectively, and an air outlet of the refrigerating device is communicated with the air storage bins through the air supply pipe. Cold air in the temperature control system is uniformly distributed, so that the temperature of each battery box can be kept consistent.

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 discloses an aspirated-air type seed sucking plate used for hybrid rice seedling raising and seeding. The aspirated-air type seed sucking plate mainly comprises a frame I, a frame II, parallel air passages, an air cavity, an air pressure valve, a flexible pipe and the like. The seed sucking plate is formed by combining multiple groups of parallel air passages, seed sucking holes are distributed in the parallel air passages in a staggered manner, each parallel air passage is an independent air cavity, and air flow in the air cavity is uniform and stable. The aspirated-air type seed sucking plate disclosed by the invention can be applied to rice seedling raising and precise seeding of hybrid rice, seeding uniformity is effectively improved, and further seeding quality 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 a multilayer underground water level observation device for a hydrogeological hole. The multilayer underground water level observation device comprises a liquid storage barrel,wherein a middle shaft is fixedly connected between the inner walls of the two sides of the liquid storage barrel; the outer wall of the middle shaft is slidably connected with a push-pull disc; a sealing gasket is arranged between the push-pull disc and the middle shaft; two lead screws are movably connected to the inner wall of the bottom part of the liquid storage barrel; the other ends of thetwo lead screws penetrate through the upper side barrel wall of the liquid storage barrel to be fixedly connected with secondary wheel discs; two threaded holes are formed in the push-pull disc; theinner walls of the threaded holes are movably connected with the outer walls of the lead screws; a motor box is fixedly connected to the outer wall of the upper side of the liquid storage barrel; anda first motor is fixedly connected to the inner wall of the motor box. The multilayer underground water level observation device can perform water absorption and water outlet operation on undergroundwater, facilitates underground water sampling and later water pumping detection, solves the problem that a water body is difficult to take out after sampling, improves the underground water level observation efficiency, can use a motor to replace manpower, and reduces the working intensity.

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.

A novel dual-sealing type dome valve comprises a valve body, a valve element, a valve seat and a valve deck and further comprises a gland, a sealing assembly and an air source channel. One end of the gland is connected with the valve deck, and the other end exceeds the inner side face of the valve deck so that a limiting face can be formed, then the other end of the gland extends downwards to abut against the outer end face of the valve element when the dome valve is closed, and a sealing channel is formed. The sealing assembly comprises a piston and a sealing gland. The piston and the sealing gland are arranged in the sealing channel and can move in the sealing channel. The air source channel extends from an opening of the valve deck to the sealing channel so that an air inlet and outlet channel can be formed. The novel dual-sealing type dome valve has the beneficial effects that sealing is achieved by adopting a metal material, thus, compared with traditional sealing, the performance is more reliable, and the service life is longer. Control is achieved through an air source, air in the piston is exhausted preferentially, the valve can be opened after the pressure between the valve element and the piston is reduced, abrasion due to opening of the valve is reduced, the service life of the valve is prolonged, the maintenance period is further shortened, and energy sources are saved.

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 an upper-blowing type film blowing machine for a high-pressure film. The film blowing machine comprises a film blowing device, wherein the film blowing device comprises a fixedfeeding lower section, a connecting rotating disc, a discharging die head and a film blowing cooling mechanism; the fixed feeding lower section comprises a feeding inner core and a feeding heating sleeve, feeding inner core discharging ports are formed in the upper end of the feeding inner core, and feeding inner core feeding ports are formed in the lower end of the feeding inner core; the connecting rotating disc comprises a fixed disc body and a rotating disc body; the discharging die head comprises a discharging fixing inner core, a rotating sleeve and a discharging heating sleeve, whereinthe discharging fixing inner core is connected to the fixed feeding lower section, the rotating sleeve is connected with a rotating mechanism, discharging die head feeding ports are formed in the lower end of the portion between the rotating sleeve and the discharging fixing inner core, annular discharging ports communicating with the discharging die head feeding ports are formed in the upper endof the portion between the rotating sleeve and the discharging fixing inner core, and the discharging die head feeding ports correspondingly communicate with the feeding inner core discharging ports;and the film blowing cooling mechanism comprises an air supply device, air supply pipelines and an air ring. According to the upper-blowing type film blowing machine for the high-pressure film, thinfilm bags produced by the upper-blowing type film blowing machine are more uniform in thickness and better in texture, and the mechanical structure is reasonable in arrangement.

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 relates to the field of fuel cells, especially relates to a pressure compensation device of a hydrogen fuel cell, and specifically provides equipment for providing an auxiliary homogenous pressure for the hydrogen fuel cell used in the field of new energy automobiles. The equipment comprises a shell, a pressure compensation cavity and a pressure regulation cavity communicating with each other are arranged in the shell, liquid submerges the communication site of the pressure compensation cavity and the pressure regulation cavity, so that the gas parts of the pressure compensation cavity and the pressure regulation cavity are isolated, and the liquid parts are communicated; the pressure compensation cavity is used for communicating with the fuel cell, and the pressure regulation cavity is used for communicating with the exterior of the shell; and in use, the pressure compensation cavity and the pressure regulation cavity have a liquid level difference, and air is stored in the pressure compensation cavity, and in the case of under-pressure of an air supply source of the fuel cell, the pressure compensation cavity supplements air into the fuel cell under the action of the liquid level difference. In the structure, in the case of pressure fluctuation of the air supply source, the air pressure can be conveniently judged through the change of the pressure difference by means of the mobility of liquid, and in addition, the air in the pressure compensation cavity can be supplemented into the fuel cell in real time so as to guarantee the balance of the air pressure inside the fuel cell.

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 discloses a magnetic liquid acceleration sensor, belonging to the technical field of inertia sensors and solving the problems that the weight is heavy, the measuring range is short, the sensor fails due to the fact that magnet is demagnetized because of long-time use and the stability of the sensor is reduced due to the fact that magnetic particles are aggregated because of long-time work failure in a traditional magnetic liquid acceleration sensor are solved. A cylindrical magnet (5) of the magnetic liquid acceleration sensor is a rubber magnet; the cylindrical magnet (5) is placed in a casing (2); magnetic liquid is filled into the casing (2) and is attached to two axial ends of the cylindrical magnet and enables the cylindrical magnet to suspend; a left end cover (1) and a right end cover (6) are respectively in threaded connection with two ends of the casing; a first coil (3) and a second coil (4) are respectively wound in two annular grooves of the casing; the first coil is connected with the second coil in a differential manner; the diameter of an inner cavity of the casing is reduced from the center to the left side and the right side; a taper angle is 2 alpha; the lateral surface of the inner cavity of the casing takes an axis as a symmetrical shaft; and a first groove and a second groove are formed along the axis.

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 top (6) of a disposable weight-reducing suction cup (1) adapted to be intimately contacted with a weigh-reduction subject portion (8) is provided with a projection (24) and a thin-walled portion (35) disposed in the region of the inner surface of the cup (1) opposed to the projection (24). The cup (1) is intimately contacted with the weight-reduction subject portion (8), and then it is evacuated for suction by a pressure reducing valve (16) to dissipate the subcutaneous fat in the weight-reduction subject portion (8). After suction, this projection (24) is bent to destruct the thin-walled portion (35) to form a hole in the top (6), thereby equalizing the pressure in the cup with the outside pressure. This allows easy removal of the cup (1) from the weight-reduction subject portion (8). The absence of a complicated reduced pressure releasing mechanism results in an inexpensive disposable weight-reducing suction cup. Further, the barrel (4) of the weight-reducing suction cup (1) to be intimately contacted with the weight-reduction subject portion (8) is provided with a deformable portion (25) composed of a recess (20) and a thin-walled portion (18). The deformable portion (25) serves as a pressing portion adapted to be easily inwardly deformed and crushed when the interior (42) of the cup (1) is evacuated, and to laterally press the weight-reduction subject portion (8) to effectively dissipate subcutaneous fat.

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 discloses a cooling water tank for an agricultural diesel engine. On the bracket, an upper water chamber is arranged above the water tank shell, and the surface of the upper water chamber is symmetrically welded with a water inlet pipe A and a water inlet pipe B, and the water inlet pipe A and the filter arranged inside the upper water chamber connected, the inside of the upper water chamber is provided with a ventilation standpipe, the inside of the upper water chamber is provided with a water tank, and the pressure relief pipe provided at the uppermost middle position of the upper water chamber is provided with a pressure cover. The water outlet below the upper water chamber is sealed and connected with the U-shaped heat dissipation pipe inside the water tank shell, and the water outlet of the U-shaped heat dissipation pipe is sealed and connected with the lower water chamber, and the water outlet pipe A is welded on the lower water chamber. The invention has the advantages of simple structure, good heat dissipation effect, high use safety and long service life.

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.