54results about How to "Simple combination" patented technology

The invention discloses a synchronous positioning and map construction method of moving robots based on ultrasonic sensors. The objective of the invention is to solve a problem of failure of precise positioning and of map construction caused by too sparse data acquired by an ultrasonic sensor used by the current robot. The method comprises steps of 1, setting multiple ultrasonic sensors in each position of a robot; 2, acquiring measurement data through the ultrasonic sensors arranged on the body of the robot; 3, combining the ultrasonic measurement data acquired in the continuous time periods; 4, predicting the position of the robot at the current moment; 5, according to the combined measurement data and matching conditions of an existing map, determining the final position of the robot at the current moment through particle scores; and 6, updating the environmental map. According to the invention, based on the ultrasonic sensors, by combining the positioning algorithm, the position of the moving robot and the map of the surrounding environment are obtained; the method is quite low in cost and easy to achieved; positioning precision of the robot in the moving process is improved; and the method can be used for controlling the moving robot.

The invention discloses an interventional surgical robot subordinate end and a mobile platform and a control method of the robot subordinate end and belongs to the technical field of minimally invasive blood vessel interventional operations. The mobile platform comprises a platform main beam, and platform connection blocks are arranged on the platform main beam through a linear guide rail pair D; the platform connection blocks are driven by a platform driving mechanism and used for installing a catheter controller or a guide wire controller. The interventional surgical robot subordinate end comprises the catheter controller, the guide wire controller and the mobile platform; the catheter controller and the guide wire controller are mounted on the two platform connection blocks respectively. According to the interventional surgical robot subordinate end, the catheter controller and the guide wire controller are installed on the mobile platform, and the problem is solved that it is difficult for an existing robot to complete co-operating of a catheter and a guide wire.

The invention relates to a deep processing treatment system for hot rolling strip steel, and belongs to the technical field of deep processing of strip steel. The system comprises an independent hot rolling strip steel leveling machine set and a heat treatment line; the heat treatment line comprises a quenching heat treatment line and / or a normalizing heat treatment line; and the hot rolling strip steel leveling machine set (2) and the heat treatment line are arranged in adjacent finished product spans, and a leveling plate produced by the hot rolling strip steel leveling machine set is transported to the heat treatment line by spanning a platform lorry (1) or through other transportation modes to carry out quenching or tempering treatment. The system has the advantages of simple combination mode, flexible process route, wide range for adapting steels, little occupied area, investment conservation and the like, and can produce a product with high performance and high added value at the same time of meeting the requirements of common users so as to meet special requirements of high-end users and partially replace middle board products.

The invention discloses a driven end device of an interventional operation robot and a control method thereof, and belongs to the technical field of a minimally invasive blood vessel interventional operation. The device comprises a main body part, a catheter holder, a guide wire clamper, a torsional assembly and a force measuring assembly, wherein the catheter holder is used for holding a catheter; the guide wire clamper is used for clamping or releasing a guide wire; both the catheter holder and the guide wire clamper can be detachably arranged on the main body part; the catheter holder comprises a medical three-way valve and a clamping assembly; the medical three-way valve is connected with the catheter and is fixed on the main body part through the clamping assembly; the torsional assembly is used for driving a screw cap of the medical three-way valve to drive the catheter to rotate; the force measuring assembly is used for detecting the pushing force of the catheter; the torsionalassembly, the catheter holder and the guide wire clamper are detachably arranged on an upper cover of the main body part. A sanitary isolating membrane can be conveniently added in the operation process; good sanitary conditions are reached; the device is suitable for practical application.

The invention discloses a guidewire controller in a slave device of an interventional surgery robot and a method for using the same, belonging to the technical field of minimally invasive blood vessel interventional surgery. The guide wire controller includes a guide wire controller base, a guide wire clamping device and a clamping switching mechanism installed on the guide wire controller base; the guide wire clamping device is used to clamp the guide wire, and the clamping switch The mechanism is used to drive the guide wire clamping device to loosen the clamp on the guide wire; the guide wire lock adopts a special cone surface and cone hole structure to realize the clamping of the guide wire. The pedestal is mounted on a height-adjustable base that also includes a guidewire torsion device and a force-measuring assembly. The present invention has a simple overall structure, adopts a modular structure design, is easy to disassemble and assemble, has a compact structure, is light in weight overall, and has low manufacturing cost.

The invention relates to a method and device for washing cooking materials. The method includes the steps of 1, according to demands, adding the cooking materials into a container; 2, using a drivingdevice to drive a pipe, and inserting the pipe into the container, wherein the outlet of the pipe is positioned in the cooking materials and is close to the bottom of the container; 3, supplying waterto the pipe through a water system; 4, after water is introduced through the pipe for a certain time, stopping the water system from introducing water, and sucking water out of the container throughthe pipe when the water system runs again to complete washing once; 5, according to different cooking materials, selecting different washing frequencies, and repeating the step 3 and the step 4 according to the corresponding washing frequency; 6, using the driving device to drive the pipe to detach from the container to complete the whole washing process. According to the method for washing the cooking materials, damage caused by interference from external force to the cooking materials is avoided, meanwhile different washing frequencies can be selected according to different materials, the cooking materials are preserved well, and the situation that the taste after cooking is influenced since the cooking materials are damaged can be avoided.

The invention aims to provide an ultrafine particle separation system under a coupling mechanism. A turbulence coalescer of a pure mechanical structure and cyclone separation equipment are directly and sequentially installed together, efficient separation of ultrafine particles is achieved by means of a coupling mechanism, the ultrafine particle separation effect is good, and the system is simplein structure, safe and reliable in equipment, wide in application range, and suitable for various ultrafine particle separation processes. The system comprises a cyclone separator, the turbulence coalescer is arranged at an inlet of the cyclone separator, the turbulence coalescer comprises a shell, the shell comprises an inlet and an outlet, the outlet of the shell is connected with the inlet of the cyclone separator, the cross section of the shell is rectangular, a turbulence column device is arranged in the shell, and a plurality of guide vanes are further arranged in the upstream directionof the turbulence column device.

The invention provides an energy storage current transformer combination optimizing method based on maximum energy efficiency. The method includes the following steps: A, inputting basic data of a photovoltaic micro-grid; B, calculating the load within all sampling intervals [delta]T and the net power of photovoltaic output according to load data and photovoltaic output data in the step A; setting the required total power PC of an energy storage current transformer according to a net power value P0' obtained in the step B and associated with the charge and discharge process of an energy storage system and also according to the maximum energy storage charge and discharge power PBmax; D, calculating all current transformer combinations that meet requirements according to optional current transformer specifications and the total power of the current transformer determined in the step C; E, adopting a smart algorithm to distribute power to each current transformer combination determined in the step D within each period of time relative to each current transformer in the combination according to the net power value P0' obtained in the step B and associated with the charge and discharge process of the energy storage system and also to the configured the total power PC of the energy storage current transformer; and F, selecting the current transformer combination the loss of which is the minimum within a whole counted period of time in the step E as a final energy storage current transformer combination scheme.

The invention discloses a guide wire controller for an interventional operation robot and a control method of the interventional operation robot, and belongs to the technical field of minimally invasive vascular interventional operations. The controller comprises a basal part as well as a guide wire clamping mechanism and a clamping switching mechanism which are arranged on the basal part, whereinthe guide wire clamping mechanism is used for clamping a guide wire; the clamping switching mechanism is used for driving the guide wire clamping mechanism to loosen clamping on the guide wire; the guide wire clamping mechanism comprises a guide wire locking sleeve, a guide wire locking rod and a guide wire locker; one end of the guide wire locking rod is provided with the guide wire locker and is arranged into the guide wire locking sleeve; and the guide wire locker, which is squeezed by virtue of the guide wire locking rod, can clamp the guide wire. The guide wire controller provided by theinvention is simple in overall structure, and the guide wire controller, which adopts modular structure design, is simple and convenient in dismounting and mounting combination, compact in structure,light in overall weight and relatively low in manufacturing cost.

The invention discloses a preparation method of an ultra-thin automobile radiating circular pipe. The method comprises the following steps that a solid-state high-frequency welding power source is used for welding a pipe barrel into a circular pipe with the outer diameter of 7.0-7.3 mm, the thickness of a wall is 0.20-0.25 mm, and cooling, slag scraping and cutting off are carried out to obtain the ultra-thin automobile cooling circular pipe; and the invention further provides an automobile radiator, the heat radiator is composed of the ultra-thin automobile heat dissipation circular pipe, turbulent flow fins, a reinforcing plate, a mounting plate, an upper water chamber, a lower water chamber and an aluminum comb plate. According to the method, a single-layer aluminum alloy material is adopted to prepare the automobile heat dissipation circular pipe, the material uniformity is good, a high-frequency current with a high-current and large-frequency is adopted for welding, so that the welding speed is high, the welding efficiency is high, a melting point of a welding position is consistent, and the anti-corrosion performance is good; and the wall thickness of the circular pipe is very thin, not exceed 0.25 mm, the heat exchange efficiency is high, the weight is light, a consumable material is saved, and the cost is low.

The invention relates to the technical field of heat exchangers, and discloses a finned tube heat exchanger and application thereof and an afterheat boiler. The finned tube heat exchanger belongs to a radial heat transfer heat tube, and has the advantages of high heat transfer efficiency, short axial length, small size and light unit heat exchange weight; a sucking core has no need to be arranged in the tube; and inner tube fins of a first layer of inner tubes can be used for guiding condensed water to flow onto the inner walls of outer tubes to absorb heat for evaporation, so that the whole inner walls of the outer tubes become the heat absorption evaporation surface area of phase change liquid. The finned tube heat exchanger is applied to industrial afterheat, can reduce industrial pollution, and also can fully use the industrial afterheat; and the industrial afterheat is secondarily converted to energy for recycling by human. The afterheat boiler adopts the finned tube heat exchanger consisting of heat tubes to recover heat; the finned tube heat exchanger is small in size, and can be flexibly arranged on a flue; and the heat tubes belong to radial heat transfer, so that the heat exchange area with waste smoke in the flue is largely increased, and the heat exchange efficiency is improved.

Disclosed is a developable furniture. The developable furniture is composed of a faceplate, drawable rails and three parallel support plates. The middle of every support plate is provided with a faceplate mounting hole for the faceplate to cross through; the upper end of every support plate is provided with a faceplate mounting slot; both edges of every support plate are provided with drawable rail mounting holes for mounting the drawable rails; the faceplate is mounted inside the faceplate mounting holes of the support plates or the faceplate mounting slots of the support plates. When the faceplate is mounted inside the mounting holes in the middles of the support plates and then the drawable rails are arranged on the edges of the support plates, the developable furniture can become a crib and a chair; when the drawable rails on one side are removed, the developable furniture can become two connected chairs; the length of the crib can be adjusted by adjusting the mounting position of the middle support plate. Besides, when the faceplate is mounted onto the faceplate mounting slots at the upper ends of the support plates, the developable furniture can become a long desk. The developable furniture is diversified in combination, easy to process and low in cost, and by means of the three support plates, is more stable in structure.

The invention discloses a radiating tube of an oil radiator and a production method thereof; the radiating tube mainly consists of main sheets, radiating pipes and radiating belts, wherein fins are arranged in the radiating pipes, each radiating pipe is in an oval flat pipe shape which is formed by performing high-frequency welding on an aluminum sheet which is not provided with a composition layer, and the wall thickness is in a range of 0.5mm to 1.0mm; the method comprises the steps of: sequentially tiling the radiating pipes and the radiating belts, distributing the radiating pipes and the radiating belts alternatively, stacking orderly on an assembling table, aligning the main sheet hole with the radiating pipe by a plate and tapping the clamp part, turning over a core body, installing the main sheet on the other side by using the same method, fixing the radiating pipe and the main sheet which have been connected by a fixture, and then placing into a continuous brazing furnace to perform brazing under the protection of nitrogen; the radiating tube has the characteristics of higher strength, light and thin materials, easiness in installation and good universality and can be widely applied to the fields of engineering machines, heavy duty trucks, special vehicles and the like.

The invention relates to a fresh pteroceltis tatarinowii bark processing system which includes a fresh pteroceltis tatarinowii bark sorting unit, a pteroceltis tatarinowii bark cooking unit, a pteroceltis tatarinowii bark whitening unit, a pteroceltis tatarinowii bark pulping unit, and a pteroceltis tatarinowii bark fermentation unit, wherein conveying pipelines are arranged among the fresh pteroceltis tatarinowii bark sorting unit, the pteroceltis tatarinowii bark cooking unit, the pteroceltis tatarinowii bark whitening unit, the pteroceltis tatarinowii bark pulping unit, and the pteroceltis tatarinowii bark fermentation unit. The fresh pteroceltis tatarinowii bark processing system has the benefits of simple combination of all components, convenience in use, cleanness, and environmental protection; pteroceltis tatarinowii barks manufactured through the technique can improve the strength and water-absorbing and ink-distributing performance of paper, and enlarge the MD (machine direction) / CD (cross direction) strength difference, breaking length and MD / CD tensile ratio of the paper.

The invention discloses a combined cavity for flow field video and aerodynamic load measurement, which comprises a base body, the base body comprises a front end, a rear end and a frame beam, the front end and the rear end are of an integrated structure, the frame beam is connected with the front end and the rear end, a cavity structure is formed among the front end, the rear end and the frame beam, protruding connecting parts are arranged at the front end and the rear end, a functional plate is arranged on the frame beam between the front end and the rear end, the functional plate is movably connected with the side edges of the connecting parts, a bottom plate is arranged in the frame beam, and the bottom plate is movably connected with the connecting parts. The combined cavity can be applied to cavity unsteady pulsating pressure measurement tests, flow display tests, acoustic vibration load characteristic research and the like at the same time; and the parts are simple in combination mode and convenient to disassemble and assemble, the test process is simplified, the period is shortened, and the test efficiency is improved.

The invention provides a high-impedance combined-type transformer which comprises three single-phase transformers and three transformer oil tanks, wherein the three single-phase transformers are respectively arranged in the three transformer oil tanks; the three single-phase transformers are combined to form a three-phase transformer; in the three-phase transformer, each phase of transformer comprises a low-voltage winding, a medium-voltage winding and a high-voltage winding; a reactor is arranged in each transformer oil tank; and the low-voltage winding of each phase of transformer is connected in series with the reactor of the transformer oil tank where the phase transformer is positioned. The high-impedance combined-type transformer can be in high-impedance operation and in split-type transportation, and has high performance-price ratio.

The invention discloses an assembly type stair which comprises a plurality of treadles and PVC (polyvinyl chloride) plastic floors. The treadles are used for assembling the stair. The assembly type stair is characterized in that the treadles are specific right-angle steel plates, rectangular hollow-out grooves are formed in the left ends of top surfaces of the right-angle steel plates, rectangular grooves are formed in the right ends of the top surfaces of the right-angle steel plates, rectangular insertion components which can be inserted into the rectangular hollow-out grooves are arranged at the bottoms of vertical surfaces of the right-angle steel plates, the PVC plastic floors are arranged in the rectangular grooves, the rectangular insertion components can be inserted into the rectangular hollow-out grooves, and the multiple rectangular insertion components are inserted into the rectangular hollow-out grooves, so that the treadles can be connected with one another to form the assembly type stair. The assembly type stair has the advantages that the treadles and the PVC plastic floors can be easily combined with one another and can be conveniently detached from one another, the assembly type stair is anti-slip, and people can conveniently use the assembly type stair.

The invention discloses a hub type energy-saving vibration-reducing pneumatic power generating device, comprising a hub, at least two compressed air bags and a pneumatic generator, wherein the periphery of the hub is connected with an annular air collector, the compressed air bags are uniformly distributed at the periphery of the air collector, and are isolated from each other, the compressed air bags are communicated with the air collector through valves, the outer sides of the compressed air bags are provided with air inlet valves, the radial direction of the hub is provided with the pneumatic generator, and the pneumatic generator is communicated with the air collector through air hole connecting parts. The invention aims to provide the energy-saving hub vibration-reducing pneumatic power generating device, which is used for converting vibration in vehicle movement and partial energy generated by self weight, electric energy generated through the power generating device is charged into a storage battery of the vehicle, so that the service life of the storage battery is prolonged, and the working time of electric car series is greatly prolonged. The hub type energy-saving vibration-reducing pneumatic power generating device is simple and reliable in structure and has a small influence on the rigidity of the hub.

The invention discloses a bed, table, and chair assembly, and relates to the technical field of furniture equipment. The bed, table, and chair assembly comprises a plurality of back-rest chairs, a plurality of stools, a lifting table, and at least a storage box. The back-rest chairs can combine in an integrated body to form a bedside portion. The stools and the lifting table can combine integrallyto form a bed belly portion. The storage boxes can combine integrally to form a bed tail portion. The bedside portion, the bed belly portion, and the bed tail portion can combine to form a bed body.The assembly is a bed when being assembled, and forms assemblies, stools, and the storage boxes after being disassembled. The assembly has multipurpose, and object use efficiency is improved, more space is released, and life quality of people is improved. In addition, a combination method is simple and easy to understand, and does not need a technical threshold, and is suitable to be used for anygroup. The bed, table, and chair assembly has good practicability.

The invention discloses an electric somatosensory cart which comprises a two-wheeled somatosensory balance car and a cart body. A connecting piece is arranged in the two-wheeled somatosensory balancecar, a connecting strip is arranged at the front end of the connecting piece, a stress strip is arranged at the lower back end of the cart body, the front end of the connecting strip is movably connected with the stress strip, the connecting piece is movably connected with the two-wheeled somatosensory balance car, a power assisting device is arranged between the connecting piece and the two-wheeled somatosensory balance car, a pedal of the two-wheeled somatosensory balance car is kept horizontal all the time through the power assisting device, however, when external acting force is exerted, the wheel axle of the two-wheeled somatosensory balance car can rotate forwards and backwards. One or more elastic connecting strips are arranged on the two-wheeled somatosensory balance car, and the tress strips are connected to the front ends of one or more elastic connecting strips. The electric somatosensory cart has the advantages of being convenient and safe to use and capable of achieving interavailability, achieving the perfect effect of making good for deficiency, and being capable of achieving get-on and get-off conveniently, and capable of achieving immediate moving and stopping.

The invention relates to an agriculture facility, and particularly relates to a greenhouse of cultivation, the greenhouse includes at least one main frame, the main frame includes a main vertical column, a first cross beam, a first lengthways beam, an arch rod support cross beam, and an arch rod, the first cross beam has two pieces, the first lengthways beam has two pieces, the first cross beam is connected in sequence with the first lengthways beam to construct a rectangular, the main vertical column has four pieces, provided respectively on the rectangular top four points constructed by the first cross beam and the first lengthways beam, the arch rod support cross beam has two pieces, the arch rod has two pieces, the arch rod is connected one to one with the arch rod support cross beam correspondingly, the two ends of the arch rod cross beam is connected one to one in the width direction correspondingly with the two levelly permutated pieces of main vertical columns, two arch rods are provided with films used for shielding the rain water, the top end of the main frame is provided with a sun shielding net, the surrounding of the main frame is provided with a gauze, the main frame is simple in structure and easy to combine, has good aerial breathability and is favorable to vegetable and flower plantations in summer.

The invention relates to an anti-fake bottle opening comprising a bottle body, a guard collar, a bottle opening, a snap ring, threads and a bottleneck. The anti-fake bottle opening is characterized in that a platform surrounding the bottleneck connected to the bottle body integrally is provided with the guard collar which is in a circular ring shape, and the guard collar and the bottleneck are of a prefabricated integrated structure; the top of the guard collar is higher than the bottom horizontal line of the snap ring on the bottle opening, and the upper bottle opening above the bottle opening is provided with the threads; and the upper end of the snap ring is clamped into the periphery of the upper bottle opening, and the bottom of the snap ring is flush with that of the bottle opening. The anti-fake bottle opening provided by the invention has the beneficial effects that the combination is simple, the snap ring can be prevented from being damaged through the guard collar arranged on the bottleneck, and the destructive opening of an outer cover is avoided, so that the anti-fake effect of a bottle is improved, and counterfeiting activities of lawbreakers are cracked down; and stabilization of social and economic orders is promoted effectively.

The invention discloses a combined nursing device for thoracic surgery, specifically relates to the technical field of nursing beds for thoracic surgery, comprising a fixed bed frame, a support frame is arranged at the bottom of the fixed bed frame, a bed baffle is arranged at one end of the fixed bed frame, and The other end of the fixed bed frame is provided with a movable bed machine; the movable bed mechanism includes a movable bed frame, the movable bed frame is arranged on the top of the fixed bed frame, a mattress is arranged on the top of the movable bed frame, and the movable bed frame One end of the bed frame is provided with a first movable bed cabinet, and one side of the first movable bed cabinet is provided with a slide rail. The present invention divides the hospital bed into two parts through the fixed bed frame and the movable bed frame, uses the movable bed frame to transfer the thoracic surgery patients, and places the nursing equipment needed by the patient in the nursing equipment storage tank or the nursing equipment storage bin, When transferring the patient, the nursing equipment needed by the patient can be transferred along with the patient, improving the nursing effect.

Disclosed is a developable furniture. The developable furniture is composed of a faceplate, drawable rails and three parallel support plates. The middle of every support plate is provided with a faceplate mounting hole for the faceplate to cross through; the upper end of every support plate is provided with a faceplate mounting slot; both edges of every support plate are provided with drawable rail mounting holes for mounting the drawable rails; the faceplate is mounted inside the faceplate mounting holes of the support plates or the faceplate mounting slots of the support plates. When the faceplate is mounted inside the mounting holes in the middles of the support plates and then the drawable rails are arranged on the edges of the support plates, the developable furniture can become a crib and a chair; when the drawable rails on one side are removed, the developable furniture can become two connected chairs; the length of the crib can be adjusted by adjusting the mounting position of the middle support plate. Besides, when the faceplate is mounted onto the faceplate mounting slots at the upper ends of the support plates, the developable furniture can become a long desk. The developable furniture is diversified in combination, easy to process and low in cost, and by means of the three support plates, is more stable in structure.

Provided is a microchannel membrane distillation assembly, a first capillary tube inner hole, a hydrophobic microporous hollow fiber membrane inner hole and a second capillary tube inner hole form a tube pass microchannel, and an annular space between the outer wall of the hydrophobic microporous hollow fiber membrane and the inner wall of an outer tube forms a shell pass microchannel. The microchannel membrane distillation device comprises the microchannel membrane distillation assembly, a feed liquid circulating tank, a heating water bath kettle, a first delivery pump, an electronic balance,a cold liquid collecting tank, an electric conductivity meter, a second delivery pump, a constant-temperature water bath kettle, a computer and a temperature sensor. According to the method for strengthening the membrane distillation transfer process by using the microchannel membrane distillation device, the membrane distillation operation is performed by using the microchannel membrane distillation device. Different technical concepts are provided for exploring and developing enhanced membrane distillation transfer process, weakening polarization phenomenon and improving membrane flux.

The invention discloses a combined environmental-protection heat exchanger. The combined environmental-protection heat exchanger comprises a mounting piece; a mounting hole is formed in the left sidesurface of the mounting piece; a mounting groove is formed in the left end of the mounting hole; a mounting plate is slidingly connected into the mounting groove; slide holes are formed in the right side surface of the mounting plate; heat exchange pipes are slidingly connected into the slide holes; clamping mechanisms are arranged on deviated surfaces of the two slide holes; positioning mechanisms inserted in the mounting groove are arranged at the top and the bottom of the mounting plate; pushing mechanisms are arranged on the right side surface of the mounting plate and correspond to the positioning mechanisms; and the pushing mechanisms comprise thread holes formed in the right side surface of the mounting plate. The combined environmental-protection heat exchanger is simpler in installation and disassembly, simpler in combination mode and more convenient to disassemble, then, performs the cleaning to prolong the service life, and meanwhile, prevents frequent replacement of elements inside to achieve higher environmental protection.

The invention discloses a core structure of a limit switch. The core structure comprises a bottom casing, a pedestal assembly and a movable assembly; the bottom of the bottom casing is provided with a positioning boss, the two sides of the positioning boss are provided with grooved guide rails respectively, and the surface of the positioning boss is a folding surface; the pedestal assembly is assembled in the bottom casing; the movable assembly is assembled in the pedestal assembly, and comprises a movable rod, an elastic assembly and a moving contact assembly, the elastic assembly comprises main springs, auxiliary springs and a telescopic rod, the auxiliary springs can drive the telescopic rod to be telescopic along the axial direction, the moving contact assembly comprises a moving contact pedestal, and the moving contact pedestal is provided with a through hole through which the telescopic rod can penetrate freely and countersinks for accommodating rolling bodies; and the rolling bodies can move along the grooved guide rails, and the telescopic rod can bear a force to penetrate the moving contact pedestal and make contact with an inclined plane of the positioning boss. The core structure can prevent the switch from a power-off or flickering phenomenon in the switching moment effectively, a sliding body reduce the frictional force generated during movement of the movable assembly, the positions and quantity of normally-open and normally-closed socket connectors can be changed more conveniently, and the switching manner and repetition precision are improved.

The invention belongs to the technical field of catalysts, and particularly relates to a method for directly preparing low-carbon alcohol and co-producing gasoline by CO2 hydrogenation, which comprises the following steps: (1) reducing a catalyst for a certain time at a certain temperature in an atmosphere containing H2, and activating for a certain time at a certain pressure and a certain temperature in an atmosphere containing CO2 / H2 to obtain a pretreated catalyst; (2) applying the pretreated catalyst to catalytic reaction to prepare low-carbon alcohol and co-produce gasoline; wherein the catalyst in the step (1) comprises K2O-CuO-MgO-ZnO-Fe2O3. According to the method, the reaction steps are remarkably shortened, and the catalytic efficiency is improved; the one-way CO2 conversion rateis high (greater than 40%); the space-time yield of the low-carbon alcohol is as high as 114.3 mg / gcat / h, and gasoline can be co-produced; the catalyst combination mode is simple, and industrial production is easy.

The invention discloses a three-dimensional anode electrode and a microbial fuel cell and a starting method thereof. The microbial fuel cell includes a pool body, a sewage pump, a catholyte pump and a catholyte tank. The cell body includes an anode cavity and a cathode cavity and a cation exchange membrane. A three-dimensional anode electrode including a three-dimensional layered base layer and several extension layers is arranged in the anode chamber, and the base layer is arranged close to the cation exchange membrane. Anode circuit lines are arranged between the extension layers. A catholyte circulation is formed between the catholyte tank and the cathode cavity. The cathode cavity is provided with a cathode electrode, and the cathode electrode is selected from carbon rods or carbon brushes or includes at least two metal meshes connected to each other through titanium sheets, and granular activated carbon is filled between the metal meshes. In the start-up process, anaerobic sludge is injected into the anode cavity to realize the inoculation, cultivation, enrichment and domestication of microorganisms in the base layer and extension layer, and realize electricity production. The three-dimensional anode electrode structure of the invention is beneficial to electron collection and transmission, and has the advantages of good electricity production effect, simple structure, convenient manufacture and the like.

The invention relates to an inert matrix in an aquaponic system. The inert matrix comprises the following ingredients in percentage by weight: ceramsite (40-70%), vermiculite (30-50%) and seaweeds (10-30%). The porous structure of the ceramsite can cause microorganisms to form bacterial colonies, the vermiculite contains microelements such as calcium, magnesium and iron, which just can supplementelements that the aquaponic system lacks, whereas the seaweeds are rich in various kinds of nutrient elements and can serve as an excellent seedling growth matrix, entire transplantation can be performed as well when the ceramsite, the vermiculite and the seaweeds are combined, and damage to the root system of a plant in the traditional transplantation process is avoided.