34results about How to "Increase the length of the runner" patented technology

The invention discloses a layered runner motor shell of a dust collector and belongs to electric mechanical equipment of the dust collector. The layered runner motor shell of the dust collector comprises inner shell bodies, square outer shells, outer shell air inlets and exhaust ports, wherein dust collection motors are respectively arranged in the inner shell bodies; the inner shell bodies are provided with vent holes; the square outer shells are arranged outside the inner shell bodies at certain spatial distance; each outer shell consists of an outer shell body and an outer shell cover; the outer shell air inlets are formed on the top of the corresponding outer shell covers; the exhaust ports are used for exhausting air from the outer shells; transverse clapboards for partly dividing the inside spaces of the outer shell are formed in the outer shells; the vent holes are formed on the peripheral walls of the inner shell bodies at the side that the center lines of the circle centers are passed through below the transverse clapboard so as to form lower clapboard channels and upper clapboard channels; and uplink runners and downlink runners are formed at the parts which are not divided by the transverse clapboards. By the layered runner motor shell adopting the design, the lengths of the runners for exhausting air are increased and the transmission loss of noise is improved, so that the noises generated when the motor shell of the dust collection exhausts the air are reduced.

A high-efficiency low-noise axial flow fan mainly solves the technical problems that an existing axial flow fan is low in efficiency, high in noise and the like. According to the technical scheme, the high-efficiency low-noise axial flow fan is characterized by comprising a main fan body (2), a radial annular inlet (outlet) air muffler device (1) and a muffling diffusion cylinder (4), wherein the two ends of the main fan body (2) are connected with the radial annular inlet (outlet) air muffler device (1) and the muffling diffusion cylinder (4) respectively. A cylindrical housing (209) of the main fan body (2) and a motor housing (215) form an airflow passage. The inner wall of the motor shell (215) is provided with an axial rib plate or a fan-shaped block to support a stator (205). The outer diameter of the motor housing (215) is consistent with the diameter of a hub of an impeller (216), the diameter of an inner cylinder of a front muffler and the diameter of an inner cylinder of a rear muffler. The two ends of the motor housing (215) are basically flush with one end of a main fan body housing. A flange fixing a rotator and an end cover are arranged on the inner side of the motor housing (215). Accordingly, resistance loss is reduced. An air inlet (outlet) flow passage is designed to be of a gradual-shrinkage structure and a gradual-expansion structure, so aerodynamic performance and efficiency are improved; by the adoption of the radial annular inlet (outlet) air muffler device and the main fan body housing muffling structure combining multiple mechanisms, the purpose of noise reduction is achieved. The high-efficiency low-noise axial flow fan can be widely applied to ventilation on various occasions such as mines, tunnels, industries and enterprises.

The invention discloses stacked overflow type sewage treatment equipment which comprises a plurality of stacked cases. The stacked cases are assembled to form the stacked overflow type sewage treatment equipment and comprise cases, first barriers, overflow plates, settling tanks and pollution discharge pipes, the first barriers and the overflow plates are longitudinally parallelly arranged on the inner walls of the cases, and one end of each settling tank is fixedly connected with the corresponding overflow plate so that a cavity can be formed by each settling tank and the corresponding case; the other end of each settling tank is connected with a side wall of the corresponding case, a water outlet is formed in the inner wall of each case, a plurality of pollution discharge outlets are formed in joints of the settling tanks and the inner walls of the cases, and the pollution discharge pipes are arranged on the outer sides of the cases and are communicated with the pollution discharge outlets. The stacked overflow type sewage treatment equipment has the advantages that the quantities of the stacked cases can be set as needed, the stacked cases are assembled in a stacked manner, and accordingly the problem of excessively high side pressures can be solved; the stacked cases are connected with one another in a multilevel manner, accordingly, the lengths of water flow channels can be increased, the total capacity can be increased, and overflow type merits can be effectively utilized by the stacked overflow type sewage treatment equipment; the stacked cases of the stacked overflow type sewage treatment equipment can be assembled as needed, the volume of the stacked overflow type sewage treatment equipment can be voluntarily adjusted, and the stacked cases are convenient to assemble.

The invention discloses a low-noise motor casing structure with a crossed flow channel of a vacuum cleaner. The low-noise motor casing structure comprises an inner shell and an outer shell, wherein a dust collecting motor is arranged in the inner shell, the outer shell is arranged outside the inner shell at a certain spatial distance, an air inlet of the outer shell is formed in the front end of the outer shell, the crossed flow channel is formed between the outer shell and the inner shell, air outlets of the inner shell are formed in the peripheral wall of the inner shell, and air outlets of the outer shell are formed in the tail end of the outer shell. When the vacuum cleaner is operated, air flow which flows through a motor is exhausted through the two air outlets in the inner shell and propagated through the crossed flow channel, after the air flow reaches a diversion baffle, the air flow is shunted and propagated to the air outlets of the outer shell above and below the diversion baffle through diversion ribs, and finally, the air flow is exhausted. By using such a motor casing structure, the length of the flow channel for exhausting the air flow is increased and maximized within limited space, the purpose of reducing noise is realized by increasing the propagation loss of the noise, and the motor casing structure has the advantages of low cost, simplicity and easiness in realization.

The invention relates to the field of fluid interaction devices, in particular to a curved-surface plate and a flow channel bending device using the curved-surface plate. The curved-surface plate is provided with a spiral groove, the spiral groove is provided with a datum line, the datum line is cylindrical spiral line, and the wall face of the spiral groove is a curved surface for passing after the datum line performs translation according to a set trajectory. Compared with the flow channel bending device which can only make a fluid disturbed in one plane. When the curved-surface plate is used and the fluid passes through the spiral groove, a rotational flow can be formed in a space, the disturbing capability of the fluid can be enhanced, and meanwhile the length of a flow channel can be prolonged. The problem that an existing flow channel bending device has small fluid disturbance and accordingly low heat exchange efficiency, poor mixing effect and the like are caused is solved.

The invention provides a fluidity measuring device and measuring method based on a serpentine flow channel. The device comprises: at least one mold assembly, which is arranged on a rack, and comprisesan upper mold plate and a lower mold plate, wherein the upper mold plate is arranged on the lower mold plate, the serpentine flow channel is formed in the face, close to the upper mold plate, of thelower mold plate, a flow channel opening is formed in the upper mold plate, and the flow channel opening is communicated with a pouring inlet of the serpentine flow channel; a pouring cup, which is arranged on the upper mold plate, is communicated with the pouring inlet through the flow channel opening; and a heating device, which is arranged on the rack. According to the fluidity measuring deviceand measuring method based on the serpentine flow channel, a straight flow channel is changed into the serpentine flow channel, the length of the flow channel is increased under the condition that the size of the mold assembly is not changed, the upper mold plate is made of a transparent material, and the experiment phenomenon can be conveniently observed in the testing process.

The invention relates to the technical field of a dust removing device, and relates to a Coulomb electrostatic precipitator. The Coulomb electrostatic precipitator comprises a housing body, an air inlet pipe and an air outlet pipe, wherein the air inlet pipe and the air outlet pipe are respectively arranged at two ends of the housing body. A plurality of ring beams abutted against the inner wall of the housing body are arranged in the length direction in the housing body. The ring beams are connected with each other through connecting rods, and a framework having a rectangular cross section which is internally connected with the ring beams is arranged in the housing body. A dust removing device is arranged on the framework and comprises anode plates arranged on the framework and cathode wires arranged on the framework. The anode plates and the cathode wires are arranged in the housing body in a rectangular array manner. The Coulomb electrostatic precipitator has the following effects:the ring beams can support the housing body to a certain extent; the connecting rods connect all the ring beams into a whole body; the framework internally connected to the ring beams can further increase the overall strength of the housing body; and the framework is capable of carrying out secondary support on the ring breams, so the possibility of heat deformation of the housing body during treatment of high temperature smoke is reduced, and the service life of the device is prolonged.

The invention discloses an anti-creeping water pipe connector arranged outside an inner container of an electric water heater. The anti-creeping water pipe connector comprises a connector body, a hotwater runner and a cold water runner, wherein the hot water runner and the cold water runner are arranged in the connector body; the connector body is made of an insulating material; a water inlet connector and a water outlet connector are formed on the lower end face of the connector body; a water inlet and a water outlet are formed in the upper end face of the connector body; the water inlet connector and the water inlet communicate through the cold water runner; the water outlet connector and the water outlet communicate through the hot water runner; cold water is injected into the inner container through the water inlet connector via the cold water runner and the water inlet; and hot water of the inner container is guided out to a bathing water pipe through the water outlet connector via the water outlet and the hot water runner. By means of the reciprocating type runner design and the flexible runner section shape design, the space size can be fully utilized, the cross sectional area of the runners is effectively enlarged, the length of the runners is prolonged, electric resistance of a water path is increased under high flow, and the anti-blocking and anti-creeping propertiesare improved. The invention further discloses the water heater with the anti-creeping water pipe connector.

The invention discloses a hydrocycloneseparation dryer for solid-liquid separation of water-bearing granular materials. The hydrocycloneseparation dryer comprises a hydrocyclone separation drying device (I) and an air supplying device (II); the hydrocyclonedrying device comprises an outer cavity (1), an upper end cover (2), a double-layer spiral filtering flow passage (3) and an air supplying pipe(4); the double-layer spiral filtering flow passage comprises a water tank (31) and a sieve plate (32); and the air supplying device comprises a fan (5), an air duct heater (6) and a venturi air supplying device (7). The hydrocyclonedrying device is connected with the air supplying device through a connecting elbow pipe (8). According to the hydrocycloneseparation dryer for solid-liquid separation of the water-bearing granular materials, the length of a separation flow passage per unit volume is increased, the double-layer spiral filtering flow passage is adopted, and wind drying is combinedwith the double-layer spiral filtering flow passage, so that the particle drying efficiency is improved. According to design, collision of particles in the drying process is reduced, the drying efficiency of the particles is improved and the volume of the hydrocycloneseparation dryer is effectively decreased, and especially for the difficult handling granular materials with the moisture content being greater than or equal to 95%, effective dehydration treatment can be achieved. The hydrocycloneseparation dryer for solid-liquid separation of the water-bearing granular materials is reasonable indesign, compact in structure, and easy to apply and popularize.

The invention relates to an ice-core remover and a supercooled water ice machine, and relates to the technical field of ice equipment and is designed to solve the problem of poor filtration efficiencyin the existing supercooled water ice machine. The ice-core remover comprises a cylindrical first shell, one end of the first shell is closed, and a water inlet and a filter outlet are arranged on the first shell, the first shell is internally provided with a rotating shaft, a partition plate and a rotary power device, the partition plate and the closed end of the first shell and the shell wall together form a closed filtering cavity, the rotating shaft is positioned in the filtering cavity, the rotating shaft is fixedly provided with a filter disc, the filter disc is in a spiral shape, and the edge of the filter disc is in contact with the inner wall of the first shell, the advancement direction of the filter is opposite to the direction of flow of the fluid in the first shell; the filter is capable of blocking the ice core in the fluid. The supercooled water ice machine includes the above-described ice-core remover. The invention provides an ice-core remover and an over-water ice-making machine, which are used for filtering the ice core and making ice by using the super-cooling method.

The invention relates to a process and apparatus for realizing non-rectilinear ring current in magnetic gap space for magnetic deformation fluid, wherein the magnetic gap space comprising a magnetic conductor and a magnetic insulator is provided with a magnetic insulation press ring, which insulates the magnetic gap space into the flow passage of the magnetic deformation non-rectilinear ring flow, the magnetic deformation flow enters the magnetic gap space from the entry port of the magnetic gap space, then extends along the ring flow defined by the magnetic gap space to the exit for outflow.

The invention relates to a valve special for microsphere dispersion and suitable for a diagnostic reagent. The valve comprises a valve seat assembly. The lower portion of the valve seat assembly is connected with a valve element assembly. The valve element assembly comprises a valve element body. The top of the valve element body is of a conic structure. A connecting ring is distributed on the valve element body. A conic containing cavity is formed in the valve seat assembly. The conic structure of the top of the valve element assembly is in contact with the conic containing cavity. The top ofthe connecting ring is in contact with the bottom of the valve seat assembly. The conic containing cavity is connected with a machining channel in a communicating manner. Thus, the top of the valve element body is of the conic structure, an impact ring is omitted, it can be guaranteed that impact force and shear force borne by microspheres during homogenization are within an acceptable range, andintegrity of the microspheres is guaranteed. Through mutual cooperation of the conic containing cavity and the machining channel, the length of a runner is increased, the dispersion stroke is increased, the work area is enlarged, and a good dispersion effect is achieved. The overall structure is simple, and assembling is easy.