46results about How to "High efficiency suction" patented technology

The invention discloses an electric power cabinet having dedusting and heat radiation functions. The electric power cabinet comprises a cabinet body and further comprises an air inlet device, an exhaust device and a storage battery, wherein the storage battery is used for supplying power for the air inlet device and the exhaust device, the air inlet device is arranged at a lower portion of one side of the cabinet body and is used for pumping the external air into the cabinet body, and the exhaust device is mounted at the other side of the cabinet body and is used for pumping the air in the cabinet body to realize dedusting and heat radiation. The electric power cabinet is advantaged in that through arranging an air blowing bucket and an air collection bucket which are opposite to each other, the air is quickly convected in the cabinet, heat is efficiently taken away from the inside of the cabinet, heat radiation efficiency is high, the service life of the equipment is prolonged, moreover, dusts in the cabinet are efficiently sucked, the equipment is kept to be clean, the working state of the equipment is guaranteed, the incoming air is filtered through a dust net and sponge blockswhich are arranged, the convective gas is guaranteed to be dry and dust free, and the dust and the moisture are prevented from entering into electrical equipment.

The invention discloses an extractor hood adjustable in air inlet area and a control method thereof. The extractor hood adjustable in air inlet area comprises a box, an exhaust fume collecting hood, oil net structures, an air fan, sensors and a controller, wherein the exhaust fume collecting hood is arranged below the box, a left air inlet and a right air inlet are formed in the exhaust fume collecting hood, the oil net structures are respectively arranged on the left air inlet and the right air inlet, the air fan and the controller are both arranged in the box, the sensors are arranged on theoil net structures, and the controller is connected with the oil inlet structures and the sensors respectively, and used for adjusting the air inlet area of the oil inlet structures according to oilyfume concentrations collected by the sensors. Accordingly, by automatically identifying an oily fume generation area and the generation amount of oily fume, the controller of the oily fume intelligently adjusts opening status of the left and the right air inlet, initiatively adjusts the opening area direction of the air inlets so as to enable the opening area of the air inlets to face the direction towards the oily fume generation area, and simultaneously adjusts running speed of the air fan of the extractor hood, and thereby changes suction force of the extractor hood, and therefore the extractor hood adjustable in air inlet area achieves efficient oily fume suction and extraction, and improves usage experience of a user.

The invention relates to a multi-channel jet vacuum pump, and belongs to the technical field of injection pumps pumping fluid through the inertia of the fluid to be pumped. The multi-channel jet vacuum pump comprises a submersible pump, a jet device and a vacuum tank. The jet device comprises a jet box with an outlet. A left clamping plate and a right clamping plate attached to the left clamping plate are arranged in the jet box. A jet liquid inlet pipe which penetrates through the left clamping plate and is perpendicular to the left clamping plate is arranged in the center of the left clamping plate, and the inlet end of the jet liquid inlet pipe is communicated with the outlet of the submersible pump. A plurality of jet nozzles communicated with the jet liquid inlet pipe are arranged between the left clamping plate and the right clamping plate and uniformly distributed in the circumferential direction of the center of the jet liquid inlet pipe. The diameter of each jet nozzle is 8-20 mm. The outlet end of each jet nozzle is opposite to the outlet of the jet box. An air inlet pipe communicated with each jet nozzle is arranged on the edge of the right clamping plate and communicated with the outlet of the vacuum tank. The multi-channel jet vacuum pump has the advantages that the bearing pressure is large and the cleaning performance is good.

The invention discloses a desilting device for a pond. The desilting device comprises a fixed base, a first motor, a rotary shaft, a gear, a rack, a lifting base, a water pump, a connecting tube, a stain absorption tube, a second motor, a connecting rod and a dredge tool bit. The desilting device is delicate in structure, is strong in function, can be firstly used for performing negative-pressure type suction treatment on sludge inside the pond, can realize regulation on lifting height of the device though simple operation, i.e., improves the sludge suction effect; and finally, a dredging device further can be internally arranged according to a practical condition for crushing and breaking aquatic plant inside the sludge. In this way, the desilting device realizes efficient clearing for sludge inside a fish pond.

A rolling device for realizing rapid water drainage and gas exhaust of a rubber soil roadbed comprises a double-rolling-wheel type road roller vehicle body; a fixing bracket is mounted in front of thedouble-rolling-wheel type road roller vehicle body; a front rolling wheel and a rear rolling wheel are mounted in the fixing bracket; lifting rods with slide blocks are fixed on the two sides of thefront end surface of the fixing bracket; a microwave heating device is mounted on the front end surface of the fixing bracket through a slide block; the front rolling wheel is a tamping roller and comprises an external roller; the external roller is an embedded steel pipe structure which is formed by combining an internal cylinder steel plate and an external cylinder steel plate; a supporting layer is arranged between the internal cylinder steel plate and the external cylinder steel plate; the supporting layer consists of multiple arc plate bodies which are spliced with each other; and mounting grooves with semicircular sections are formed in the two side surfaces of the arc plate bodies. According to the rolling device and method for realizing rapid water drainage and gas exhaust of the rubber soil roadbed, problems that the construction efficiency is low and effective action on rubber soil in the deep layer cannot be generated can be solved, and water and gas in the deep layer of therubber soil roadbed are rapidly and efficiently drained and exhausted.

The invention relates to the technical field of equipment for measuring carbon content in fly ash, and particularly provides a system and a device for measuring carbon in the fly ash. The system and the device are possible to solve a problem that the equipment is easily blocked when measuring the carbon content in the fly ash in the prior art. The system for measuring the carbon content in the flyash comprises the device for measuring the carbon in the fly ash. The device for measuring the carbon in the fly ash comprises a fixed mounting structure fixedly connected with a wall surface of an ash bucket. The fixed mounting structure has a connecting surface connected to the wall surface of the ash bucket. The device for measuring the carbon in the fly ash further comprises an ash collectingstructure disposed on the side of the connecting surface near the center of the ash bucket. The ash collecting structure has an ash receiving port and a detection chamber for absorbing a fly ash sample collected in the ash port. The device for measuring the carbon in the fly ash further comprises a detecting element corresponding to the detection chamber for detecting the carbon content of the fly ash sample. The device for measuring the carbon in the fly ash further comprises a cleaning structure for cleaning the fly ash in the detection chamber. The system for measuring the carbon in the fly ash further comprises a suction pump and a cyclone dust collector connected to the detection chamber of the device for measuring the carbon in the fly ash.

The invention relates to a grain sorting suction pen, belonging to improvement of a sorting suction pen. The invention can control the operating airflow, accords with the operating habit of people and reduces the energy consumption. The grain sorting suction pen comprises a hollow pen holder, an air tube connected to the tail end of the pen holder and a suction nozzle arranged on the head of the pen holder. A press-type air valve is arranged at 2-4cm of the pen holder body away from the suction nozzle; and an included angle of 45-70 degrees is formed between the end surface of the suction nozzle and the horizontal plane. In order to save energy and reduce emission, the suction pen is provided with a switch for controlling connection and disconnection of the operating airflow and the pen holder is under the normally-closed state in the normal state so as to reduce the energy consumption of a vacuum press. Besides, the end surface of the suction nozzle is arranged to be an inclined surface in order to meet a general condition that a certain degree is formed between the pen holder and the horizontal plane for operators, therefore the suction nozzle and a wafer are sucked more efficiently, and the phenomenon of improving the energy consumption because of long-time air leakage before suction is avoided.

The invention relates to a safe medical mouth gag. The safe medical mouth gag comprises elastic occlusion cavities, a clearer and support tubes, wherein an airtight cavity is formed by the support tubes and the occlusion cavities; a liquid storage device is arranged on one occlusion cavity and filled with mutually insulated to-be-reacted drugs; a drug spraying end of the liquid storage device is communicated with the occlusion cavity; the clearer comprises a cylindrical casing, a one-way bearing is mounted on the casing, an outer wheel of the one-way bearing is exposed out of the casing, and a suction wheel is mounted on an inner wheel of the one-way bearing; an elastic telescopic tube is arranged outside the casing, the wall of the elastic telescopic tube is meshed with the outer wheel of the one-way bearing, two ends of the elastic telescopic tube are fixed on occlusion plates respectively, and the occlusion plates are fixedly connected with the occlusion cavities. The safe medical mouth gag is novel and unique in structure, can keep the mouth of a patient open on the premise that teeth of the patient are protected effectively and can effectively prevent a liquid from entering the respiratory tract, and time is gained for medical rescue.

The invention relates to a circulator, comprising a housing and a transmission gear, wherein a circulation cavity is arranged in the housing; a transmission gear is mounted on the housing; a rotating wheel is arranged in the housing; the transmission gear and the rotating wheel are connected with each other, the circulating cavity is internally provided with a circulating cavity inlet and a circulating cavity outlet; the circulating cavity expands gradually from one end to the other end, and an isolator is arranged in the housing between the circulating cavity inlet and the circulating cavity outlet. The circulator makes full use of circular motion and fluid motion, can better convert torsion force into pressure or thrust force through fluid, and better convert pressure or thrust force into torsion force through fluid. Moreover, particle mixing is realized through eddy flow, and chemical reaction becomes more sufficient by utilizing eddy flow. The circulator can be used as water pumps, slurry pumps, sewage pumps, blower fans, compressors, spraying equipment, atomizers, reactors, water turbines, steam turbines, wind turbines, vacuum equipment, foam material production equipment, nanometer material equipment and the like. The circulator provided by the invention has the advantages of high efficiency, low abrasion, etc., can be used for manufacturing fire-new foam material, and can usher in material revolution.

The invention discloses a dust collection opening structure. The dust collection opening structure comprises a vertical tubular body, and the lower end of the tubular body is provided with a front notch and a rear notch which are aligned in a front and back mode; a lead-in plate is installed on the top of the front notch, and the height of the lead-in plate is smaller than the depth of the front notch; a flexible baffle is installed on the top of the rear notch, and the height of the flexible baffle is equal to or larger than the depth of the notch. When a robot dust collector moves forwards, ground rubbish or dust enters the dust collecting area in the tubular body through a suction inlet in the lower end of the lead-in plate, rubbish or dust which enters the dust collecting area is blocked by the flexible baffle, under the pumping action of a draught fan in a machine body, the rubbish or dust is pumped into the machine body efficiently, and the cleaning effect is improved; in addition, when an obstacle is encountered, the flexible baffle can bend and deform, and the robot dust collector is prevented from being jacked and overturned.

A hand tool machine comprises a housing 12 and device (18,22) connected above the housing and reelingly and / or vibratory drivingly installed. The hand tool machine is driven according to rule, in virtue of a sucking airflow, especially a suction cleaner, because a turbine wheel (34) is used as driving device and has special proper inlet, outlet guide grille (44,48), so as to obtain especially fine efficacy.

The invention relates to the field of environmental sanitation equipment, in particular to a leaf cleaning device for environment cleaning and a using method thereof. The device comprises an airflow tube, a material raking mechanism and an airflow pressurizing mechanism are arranged on the outer side wall of the airflow pipe; a shaking mechanism is arranged at the lower port of the airflow pipe; the material raking mechanism comprises a motor and a swing rod; the motor is in transmission connection with the swing rod; the shaking mechanism comprises a fan closing plate; the fan closing plate is hinged to the side wall of the lower end opening of the air flow pipe, the air flow pressurizing mechanism is located above the material pushing mechanism and comprises a pressurizing cylinder and an air spraying box fixed to the fan closing plate, the pressurizing cylinder communicates with the air flow pipe and the air spraying box through pipelines, and the motor is in transmission connectionwith the pressurizing cylinder and the fan closing plate through swing rods. According to the leaf cleaning device for environment cleaning and the using method of the leaf cleaning device, through the material pushing mechanism, leaves are raked from the ground, so that the leaf cleaning effect is improved, and the leaf cleaning efficiency is improved.

The invention is an oil fume purifying device for restaurants and households, and belongs to a kitchen oil fume extraction device. The oil fume purifying device is suitable for high temperature cooking in China, and solves the following problems: 1, oil fume caused by stir-frying in the restaurants and households can be highly efficiently sucked, PM2.5 heavy pollution up to 1000mu g / m<3> can be reduced to 75mu g / m<3> or less; 2, oil fume contamination on cooking kitchen utensils can be eliminated; 3, oil fume pollution to external environment during cooking time can be eliminated; 4, oil fumepollution in kitchen stoves and machine chambers can be eliminated; and 5, the noise level of cooking in non-stir-frying long time period is reduced to 50 decibels or less. The technical characteristics are as follows: the oil fume purifying device comprises one or more stove stations in series combination and a corresponding chopping board desk. Each stove station comprises a top plate, a main air chamber part, a wind wall part, a back plate, and the like, low-level strong suction is performed, a wind wall surrounds the stove station, the direction of the gas flow of oil fume is changed, theoil fume is accelerated to enter the chamber, the oil fume is filtered with a high mesh filter net, and the high-velocity oil fume molecules can be blocked from flowing out of stoves. PM2.5 supervision and noise reduction control and other devices are set.

The present invention relates to a high-efficiency oil slick suction device for oil storage tank jet cleaning. The high-efficiency oil slick suction device comprises a suction elbow and an annular water blocking oil repellent weir, the suction opening of the suction elbow is arranged towards the bottom of an oil storage container, a space for formation of a fluid channel is reserved between the suction opening and the bottom of the oil storage container, the annular water blocking oil repellent weir is disposed outside the suction opening; the water blocking and oil repellent weir is driven upward by a driving mechanism to realize the fact that the water blocking and oil repellent weir is uplifted from the bottom of the oil storage container, or the water blocking and oil repellent weir isdriven downward by the driving mechanism to realize the fact that the water blocking and oil repellent weir is fallen down to the bottom of the oil storage container. By the act that the water blocking and oil repellent weir is fallen down to the bottom of the oil storage container, an upper liquid level, namely an oil slick layer, in the oil storage container is preferentially sucked, and the oil slick can be efficiently sucked.

The invention relates to a working method of a jet vacuum pump and belongs to the technical field of jet pumps for pumping fluids through inertia of pumped fluids. The jet vacuum pump comprises an immersible pump, a jet device and a vacuum tank. The jet device comprises a jet box with an outlet; a left clamping plate and a right clamping plate which are opposite are disposed in the jet box; a jet flow jet nozzle is formed between the left clamping plate and the right clamping plate; the space between the left clamping plate and the right clamping plate is 8-20 mm; the outlet end of the jet flow jet nozzle is opposite to the outlet of the jet box; a jet liquid inlet pipe perpendicular to the left clamping plate is disposed in the center of the left clamping plate; one end of the jet liquid inlet pipe communicates with an outlet of the immersible pump, and the other end of the jet liquid inlet pipe extends to the jet flow jet nozzle; air inlet pipes communicating with the jet flow jet nozzle are disposed at the edges of the right clamping plate; and the air inlet pipes communicate with an outlet of the vacuum tank. The jet vacuum pump has the advantages of being high in bearing pressure and good in cleaning performance.

The invention relates to a jet device with a plurality of parallel channels and belongs to the technical field of injection pumps utilizing the inertia of pumped fluid for pumping the fluid. The jet device with the parallel channels comprises a jet box with an outlet. A left clamping plate and a right clamping plate are mutually attached and arranged in the jet box. A plurality of parallel jet nozzles are formed between the left clamping plate and the right clamping plate. The inlet end of each jet nozzle is provided with a jet liquid inlet pipe. The jet liquid inlet pipes are parallel to the left clamping plate and the right clamping plate. Inlets of the jet liquid inlet pipes are communicated with the exterior of the jet box. The bore diameter of each jet nozzle is 8 mm-20 mm. The outlet ends of the jet nozzles are arranged opposite to an outlet of the jet box. The edge of the right clamping plate is provided with an air inlet pipe communicated with all the jet nozzles. The jet device with the parallel channels has the advantages of being high in bearing pressure and good in cleaning performance.

The invention relates to a multi-channel jet flow vacuum pump, and belongs to the technical field of jet pumps for pumping liquid by utilizing inertia of pumped liquid. The multi-channel jet flow vacuum pump comprises a sinking pump, a jet flow device and a vacuum tank; the jet flow device comprises a jet flow box with an outlet, and a left clamping plate and a right clamping plate which are attached are arranged in the jet flow box; a jet flow liquid inlet pipe which penetrates the left clamping plate and is perpendicular to the left clamping plate is arranged on the center of the left clamping plate, and the inlet end of the jet flow liquid inlet pipe is communicated with an outlet of the sinking pump; a plurality of jet flow nozzles communicated with the jet flow liquid inlet pipe are formed between the left clamping plate and the right clamping plate and are circumferentially and evenly distributed along the center of the jet flow liquid inlet pipe; the hole diameter of each jet flow nozzle ranges from 8 mm to 20 mm, and the outlet end of each jet flow nozzle is arranged in a manner of being opposite to the jet flow box outlet; and an air inlet pipe communicated with each jet flow nozzle is arranged on the edge of the right clamping plate, and is communicated with a vacuum tank outlet. The multi-channel jet flow vacuum pump has the beneficial effects of being high in bearing pressure and good in cleaning performance.

The invention discloses a steam ejector, and belongs to the field of ejectors. The steam ejector comprises a receiving chamber, a nozzle and a mixing diffuser pipe; a steam inlet, a liquid inlet and asteam-liquid outlet are formed in the receiving chamber, the axis of the steam inlet is overlapped with the axis of the steam-liquid outlet, and the liquid inlet communicates with a liquid conveyingpipeline; furthermore, the nozzle is detachably connected with the steam inlet, moreover, the output end of the nozzle extends into an inner cavity of the receiving chamber through the steam inlet, and the input end of the nozzle communicates with a steam conveying pipeline; and the mixing diffuser pipe is detachably connected with the steam-liquid outlet, and the input end of the mixing diffuserpipe extends into the inner cavity of the receiving chamber through the steam-liquid outlet. According to the steam ejector, the axis of the steam inlet of the receiving chamber is overlapped with theaxis of the steam-liquid outlet, the output end of the nozzle extends into the inner cavity of the receiving chamber through the steam inlet, the input end of the mixing diffuser pipe extends into the inner cavity of the receiving chamber through the steam-liquid outlet, so that the axis of the nozzle is overlapped with the axis of the mixing diffuser pipe, then a liquid can be sucked efficiently, and the liquid can be lifted by 3-10 meters through the steam ejector.

The invention relates to a jet vacuum pump with high bearing pressure and good cleaning performance, and belongs to the technical field of injection pumps utilizing the inertia of pumped fluid for pumping the fluid. The jet vacuum pump comprises an immersible pump, a jet device and a vacuum tank. The jet device comprises a jet box with an outlet. A left clamping plate and a right clamping plate which are opposite to each other are arranged in the jet box. A jet nozzle is formed between the left clamping plate and the right clamping plate. The distance between the left clamping plate and the right clamping plate ranges from 8 mm to 20 mm. The outlet end of the jet nozzle is opposite to the outlet of the jet box. A jet liquid inlet pipe perpendicular to the left clamping plate is arranged in the center of the left clamping plate. One end of the jet liquid inlet pipe communicates with an outlet of the immersible pump, and the other end of the jet liquid inlet pipe extends to the jet nozzle. An air inlet pipe communicating with the jet nozzle is arranged on the edge of the right clamping plate and communicates with an outlet of the vacuum tank. The jet vacuum pump has the beneficial effects of being high in bearing pressure and good in cleaning performance.

The invention discloses an auxiliary suction device for gastroscopy. The auxiliary suction device tube comprises a suction tube, a traction head is arranged at the front end of the suction tube, a laterally-arranged suction hole is formed in the front end of the suction tube, the rear end of the suction tube is connected with a suction device, and a moving mechanism for stirring the traction headis arranged at the front end of a gastroscope tube and controlled by a traction cable penetrating through the gastroscope tube. The auxiliary suction device for gastroscopy can enter a gastric cavitythrough a digestive tract inlet different from a gastroscope; the end of the suction tube is moved to a position needing to be sucked by adopting the moving mechanism; the area is usually an area where semifluid objects such as blood clots and food residues are concentrated; since the suction tube and the inlet of the gastroscope tube do not enter the gastric cavity from the same channel, a suction tube with a larger caliber can be conditionally adopted, large semifluid objects can be efficiently sucked, the semifluid objects can be easily sucked and discharged when the suction device is started, and a clear and clean space is reserved for observation of the gastroscope.

The present invention provides a device for preventing dust scattering and substrate machining apparatus having the same capable of alleviating scattering of tiny foreign matters such as dust in a substrate processing process and thus preventing dust from adhering to the substrate and obtaining high quality product. The dust scattering preventing device (15A) of the present invention prevents scattering of dust generated at a processing portion in the substrate processing apparatus, and includes a cover (15) that covers a processing part for processing the substrate (W) in a partitioning manner; and a pressure reducing mechanism that constantly decompresses a space in the cover (15), and the pressure reducing mechanism is depressurized by a gas vacuum mechanism (19) pumping gas in a suction cover (15).

The invention relates to an operating method of a multi-channel jet vacuum pump. The multi-channel jet vacuum pump comprises an immersible pump, a jet device and a vacuum tank. The jet device comprises a jet box provided with an outlet. A left clamping plate and a right clamping plate which are mutually attached are arranged in the jet box. A jet liquid inlet pipe which communicates with the left clamping plate and is perpendicular to the left clamping plate is arranged in the center of the left clamping plate. The inlet end of the jet liquid inlet pipe communicates with an outlet of the immersible pump. A plurality of jet nozzles communicating with the jet liquid inlet pipe are arranged between the left clamping plate and the right clamping plate and evenly distributed along the center of the jet liquid inlet pipe in the circumferential direction. The diameter of each jet nozzle is 8 mm-20 mm. The outlet end of each jet nozzle is opposite to an outlet of the jet box. An air inlet pipe communicating with the jet nozzles is arranged on the edge of the right clamping plate. The air inlet pipe communicates with an outlet of the vacuum tank. The multi-channel jet vacuum pump has the advantages that the bearing pressure is high, and the cleaning performance is good.

The invention relates to a multi-channel jet device and belongs to the technical field of jet pumps utilizing pumped fluid inertia for pumping fluid. The multi-channel jet device comprises a jet box provided with an outlet, a left clamping plate and a right clamping plate which are attached to each other are arranged in the jet box, a jet liquid inlet pipe penetrating through the left clamping plate and perpendicular to the same is arranged at the center of the left clamping plate, an inlet end of the jet liquid inlet pipe is communicated with the outside of the jet box, a plurality of jet nozzles communicated with the jet liquid inlet pipe are made between the left clamping plate and the right clamping plate and are distributed around the jet liquid inlet pipe circumferentially and uniformly, the orifice diameter of each jet nozzle ranges from 8mm to 20mm, an outlet end of each jet nozzle is opposite to the outlet of the jet box, and gas inlet pipes communicated with each jet nozzle are arranged at the edge of the right clamping plate. The multi-channel jet device has the advantages of high bearing pressure and good cleaning performance.

The invention relates to an adjustable jet vacuum pump and belongs to the technical problem of jet pumps utilizing inertia of pumped fluid to pump fluid. The adjustable jet vacuum pump comprises a submerged pump, a jet device and a vacuum tank, the jet device comprises a jet box with an outlet, a left clamp plate and a right clamp plate are oppositely arranged in the jet device, a jet nozzle is formed between the left clamp plate and the right clamp plate which are spaced by 8-20mm, an outlet end of the jet nozzle is arranged opposite to the outlet of the jet box, a jet fluid inlet tube is arranged at an inlet end of the jet nozzle and is parallel to the left clamp plate and the right clamp plate, an inlet of the jet fluid inlet tube is communicated with an outlet of the submerged pump, an air inlet tube communicated with the outlet end of the jet nozzle is arranged at an edge of the right clamp plate and is communicated with a vacuum tank outlet, a bolt is penetratingly arranged between the left clamp plate and the right clamp plate, and two ends of the bolt are in screw joint with the left clamp plate and the right clamp plate respectively and extend out of the left clamp plate and the right clamp plate in suspension respectively. The adjustable jet vacuum pump has the advantages of high pressure-bearing capacity, good cleaning performance and adjustability in size of the jet nozzle.

The invention relates to a parallel multi-channel jet vacuum pump, and belongs to the technical field of injection pumps for pumping fluid through inertia of the pumped fluid. The parallel multi-channel jet vacuum pump comprises a submerged pump, a jet device and a vacuum tank. The jet device comprises a jet box with an outlet, a left clamping plate and a right clamping plate which are attached to each other are arranged in the jet box, a plurality of jet nozzles which are parallel to one another are arranged between the left clamping plate and the right clamping plate, the inlet ends of the jet nozzles are provided with jet fluid inlet pipes which are parallel to the left clamping plate and the right clamping plate, and inlets of the jet fluid inlet pipes are communicated with an outlet of the submerged pump. The aperture of each jet nozzle ranges from 8 mm to 20 mm, the outlet end of each jet nozzle is opposite to the outlet of the jet box, the edge of the right clamping plate is provided with an air inlet pipe communicated with each jet nozzle, and the air inlet pipe is communicated with an outlet of the vacuum tank. The parallel multi-channel jet vacuum pump has the advantages of being high in bearing pressure and good in cleaning performance.

The invention relates to a jet vacuum pump and belongs to the technical problem of jet pumps utilizing inertia of pumped fluid to pump fluid. The jet vacuum pump comprises a submerged pump, a jet device and a vacuum tank, the jet device comprises a jet box with an outlet, a left clamp plate and a right clamp plate are oppositely arranged in the jet device, a jet nozzle is formed between the left clamp plate and the right clamp plate which are spaced by 8-20mm, an outlet end of the jet nozzle is arranged opposite to the outlet of the jet box, a jet fluid inlet tube vertical to the left clamp plate is arranged at the center of the left clamp plate, one end of the jet fluid inlet tube is communicated with an outlet of the submerged pump, the other end of the jet fluid inlet tube extends to the position of the jet nozzle, and an air inlet tube communicated with the jet nozzle is arranged at an edge of the right clamp plate and is communicated with a vacuum tank outlet. The jet vacuum pump has the advantages of high pressure-bearing capacity and good cleaning performance.