13results about How to "Guaranteed suction effect" patented technology

The invention discloses a multi-source data fusion-based air volume dynamic adjustment method of a fume hood for a clean environment, particularly relates to the technical field of clean environment control, and aims at solving the problem that air volume adjustment of an existing fume hood cannot give consideration to front air suction safety, pressure difference stability and overall energy conservation. A basic operation data set is formed by collecting and filtering window opening and cabinet air speed, an air volume demand value and an initial priority parameter are calculated according to the data set and a room use state mark to form a demand data set, and a deviation memory parameter and a fluctuation influence parameter are calculated by fusing room pressure difference data and the availability of an exhaust fan. Obtaining a stable control priority adjustment coefficient through a time decay score learning model, correcting the priority, distributing the target exhaust air rate and the exhaust fan output, forming a target distribution result, comparing the target distribution result with the actual air valve opening degree and the exhaust fan output state, calculating the adjustment amount, and issuing a control instruction according to the priority; and the deviation record feedback updating coefficient and the demand value are verified in the control period to realize self-adaptive adjustment.

The invention relates to the technical field of medical instruments, in particular to a gastrointestinal decompression device which comprises a suction tube, a center shaft extending in the vertical direction is arranged in the suction tube, a rotating frame is rotatably arranged on the center shaft, a plurality of diaphragms are arranged on the rotating frame and divide the suction tube into a plurality of storage cavities, and the storage cavities are communicated with the suction tube. The storage cavity is used for storing gastric contents, the diaphragm can contract in the vertical direction, a sliding plate is arranged at the bottom of the suction barrel, a tension spring is connected between the sliding plate and the bottom of the suction barrel, the sliding plate can slide up and down along the rotating frame, the lower end of the diaphragm is connected to the sliding plate, and the diaphragm is arranged in the storage cavity. The sliding plate can rotate along the center shaft so as to drive the rotating frame to rotate, meanwhile, the sliding plate can move up and down relative to the rotating frame, negative pressure is formed in the multiple storage cavities, the gastric contents are sequentially sucked, the gastric contents sucked in different time periods are separated into the respective storage cavities, and mixing is avoided.

The embodiment of the invention discloses an aerosol generating substrate section, a preparation method thereof and an aerosol generating product, the aerosol generating substrate section comprises a flaky substrate, the aerosol generating substrate section is of a winding structure formed by winding the flaky substrate, and the flaky substrate comprises a substrate layer, a casting layer and a plurality of substrate strips; the substrate strips are arranged on one side of the substrate layer at intervals in the winding direction of the flaky substrate, the axial directions of the substrate strips intersect with the winding direction, and the substrate strips can be heated to generate aerosol; the curtain coating layer is formed by curtain coating slurry in a curtain coating mode, and the curtain coating layer wraps at least part of the outer side wall of the matrix strip. The airflow channels can be formed between the substrate strips, and the generated aerosol can be released through the airflow channels, so that the suction effect of the aerosol generating product is ensured, and the suction resistance of the aerosol generating product is reduced.

The present invention relates to the field of waste gas treatment, and in particular to a waste gas treatment device for a laboratory, including a suction hood, a joint pipe, a mounting block and a suction box, etc.; the end of the joint pipe is connected to the suction hood; the end of the joint pipe is connected to the mounting block; the mounting block is connected to the suction box. The following effects are achieved: by placing the suction box at the source of the waste gas for suction, its volume is much smaller than the suction hood, avoiding blocking the line of sight of the experimenter and hindering the experimenter's operation, while avoiding the suction hood being unable to approach the laboratory table, the suction force is not concentrated, causing the waste gas to dissipate around in the laboratory, causing harm to the experimenter, and other problems. When there is more than one waste gas source, the suction box is split into left and right parts, and the two parts of the suction box are respectively placed on both sides of all the waste gas sources to ensure the suction coverage area, and avoid the waste gas being difficult to be completely sucked out when there are multiple waste gas sources.

The present invention proposes an underwater dredging robot, which arranges nozzles around the slurry suction chamber to spray high-speed jets to cut and disturb the sludge, thereby greatly increasing the sludge concentration. At the same time, the parallel water curtains formed by the high-speed jets form a negative pressure zone with equal cross-section, thereby ensuring the suction effect of the suction cup. A connecting rod mechanism is arranged, and a wheel-driven frame body is cooperated, so that the robot can operate underwater very conveniently and adjust the height of the suction cup according to the height of the sludge. A driving wheel composed of a roller and spiral ribs is arranged, so that the robot is convenient to walk in the sludge and prevents the wheel from sinking into it, and on the other hand, the sludge can be stirred and dispersed to facilitate suction.

The utility model discloses an electrostatic equipment control system, and belongs to the technical field of air purification. Comprising electrostatic equipment and further comprises a control module, a fan, a machine tool and an air valve, the machine tool and the air valve are arranged in a workshop; the electrostatic equipment is arranged on the front side of the air inlet of the fan; the fan, the electrostatic equipment and the air valve are sequentially connected through a pipeline; one end of the pipeline leads to the workshop; the pressure sensor and the wind speed sensor are arranged in the pipeline; the pressure sensor and the wind speed sensor are connected with the control module. According to the utility model, the fan and other electric control components are uniformly controlled through the control module, and the electric control components are mutually independent, so that the system can be kept stable under the uniform regulation and control of the control module; linkage control over the pipeline pressure and the pipeline air volume is achieved through the pressure sensor and the air speed sensor, balance of the pipeline pressure is kept, the air suction effect is guaranteed, and the use requirements of customers are met.

The utility model relates to integrated cooker technical field, and disclose a kind of integrated cooker of strong suction and silence, the burner is equipped on the stove body, the smoke suction port is equipped at the top of stove body, the first passageway is equipped inside stove body, the first passageway is communicated with smoke suction port, first passageway inner wall is fixedly connected with grating, grating side wall is equipped with heating assembly, and the heating assembly is heated to oil stain on grating, the stove body is equipped with oil collection component, and the oil collection component is collected to oil stain, the second passageway is equipped inside stove body, the second passageway inner wall is fixedly connected with sound-absorbing cotton, the first passageway is communicated with second passageway, and the grating is arranged between first passageway and second passageway;Heating assembly, namely wave-shaped heating pipe and metal heat-conducting sheet, is heated to oil stain on grating, so that it flows into oil collection box after melting, avoid oil stain to accumulate and block grating, ensure that air passage is smooth, maintain stable suction.

The invention relates to the field of ceramic fiber board processing, in particular to a ceramic fiber board producing and processing device which comprises a drying box and a heating module, the heating module is installed in the drying box, and the heating module is used for heating and drying a ceramic fiber board; the storage rack is installed in the drying box, a cavity is formed in the storage rack, a plurality of first air suction grooves are formed in the two sides of the storage rack respectively, and the cavity in the storage rack communicates with the outside through the first air suction grooves; the connecting rods are arranged in two vertical columns, and the two vertical columns of connecting rods are distributed on the two sides of the placing frame; a plurality of bearing rods are mounted on each connecting rod at equal intervals; according to the ceramic fiber board drying device, in the drying process, a ceramic fiber board is changed into an inclined state, most of water on the ceramic fiber board is gathered to the position close to the first air suction groove, and meanwhile, through cooperation with suction at the first air suction groove, dried water vapor can be directly sucked away.

The utility model discloses an electronic cigarette with a cigarette holder convenient to replace. The electronic cigarette comprises a main body and the cigarette holder, the main body is provided with a connecting part, the connecting part is provided with a limiting concave position, and a connecting channel is formed in the bottom of the limiting concave position; the lower end of the cigarette holder is detachably inserted into the limiting concave position, limiting convex parts are arranged on the two opposite side faces of the lower end of the cigarette holder in a protruding mode, the limiting convex parts abut against the inner side wall of the limiting concave position, and movement of the lower end of the cigarette holder is limited by the inner side wall of the limiting concave position through the limiting convex parts; the cigarette holder extends downwards to form a communicating part, and a sealing rubber ring is clamped between the outer side wall of the communicating part and the connecting channel; by arranging the limiting concave position and the limiting convex part, detachable installation of the cigarette holder can be achieved, the cigarette holder is convenient to replace, and a user can directly pull out the cigarette holder and then replace the cigarette holder with a new cigarette holder; by arranging the sealing rubber ring, a tight smoke channel can be formed, the smoking effect is guaranteed, and the sealing rubber ring can also play a certain fixing role.

The invention relates to the technical field of integrated cookers, in particular to an integrated cooker smoke guide system and device.The integrated cooker smoke guide system comprises a cooker, and the cooker comprises a first cooking range and a second cooking range; the air outlet system comprises a first air outlet and a second air outlet; under the condition that the first cooking range is in a working state and the second cooking range is in a closed state, the second air outlet can discharge air at a first preset flow, and a negative pressure area is formed above the second cooking range, so that oil fume generated by the first cooking range is guided to the second cooking range; when the second cooking range is in a working state and the first cooking range is in a closed state, the first air outlet can discharge air at a first preset flow, and a negative pressure area is formed above the first cooking range, so that oil fume generated by the second cooking range is guided to the first cooking range; according to the range hood, oil fume generated by a cooking range in a working state is guided, the oil fume is prevented from flowing out of the range hood from the side edge of the range hood, then the suction effect of the range hood is guaranteed, and the suction efficiency of the range hood is improved.

The present invention proposes a pneumatic oil pump, which relates to the field of oil extraction machinery and equipment. The pneumatic oil pump includes a pump barrel, a pneumatic cylinder, a first fixed valve, a floating valve and a second fixed valve. The pump barrel has a flow guide cavity that runs through from top to bottom. The pneumatic cylinder, the first fixed valve, the floating valve and the second fixed valve are sequentially arranged in the flow guide cavity from top to bottom. The first fixed valve, the floating valve and the second fixed valve are all single-flow valves that only allow liquid to flow upward. The first fixed valve and the second fixed valve are sealed and fixedly connected to the inner wall of the pump barrel, and the floating valve is sealed and slidably matched with the inner wall of the pump barrel. The output end of the pneumatic cylinder passes through the first fixed valve and is connected to the floating valve. The floating valve moves up and down under the drive of the pneumatic cylinder. The pneumatic oil pump proposed by the present invention can realize the suction of liquid in the well without installing a sucker rod, avoiding the operation process of pulling out the sucker rod when inspecting the pump.

The utility model relates to the technical field of kitchen stoves, and discloses a linkage lifting kitchen stove and range hood integrated device which comprises a pair of lifting trusses, electric push rods are installed on the upper portions of the pair of lifting trusses, and the two electric push rods synchronously move; one connecting column is in sliding connection with one lifting truss, and the other connecting column is fixedly connected with the output end of one electric push rod; the back of the cabinet box is fixedly connected with the front sides of the pair of connecting columns; a range hood is mounted in the cabinet box; the back of the operation table is fixedly connected with the front sides of the pair of connecting columns; a cooking bench and a water pool are installed on the operation table, and the cooking bench is arranged under the smoke exhaust ventilator. According to the kitchen stove, the height of the operation table can be adjusted according to use requirements so that the operation table can be better matched with the use height of a user, and the use flexibility and convenience of the kitchen stove are improved.

The utility model provides an air draft flow guide structure of a waste gas filtering and discharging machine and the waste gas filtering and discharging machine, and belongs to the technical field of environmental protection devices. The air draft flow guide structure comprises a sailboard, a curtain board and a flow guide board. And the sailboard is obliquely arranged at the upper part in the shell of the waste gas filtering and discharging machine. The curtain plate is obliquely arranged on the lower portion in the shell and located below the sailboard. A gap between the inclined upper end of the curtain plate and the inclined lower end of the sailboard serves as a first air inlet. The drainage plate is arranged on the lower portion in the shell and located below the curtain plate. And a second air inlet is formed between the front end of the drainage plate and the inclined lower end of the curtain plate. The waste gas filtering and discharging machine comprises the air draft flow guide structure. According to the utility model, the drainage plate is additionally arranged below the curtain plate, and waste paint mist can enter a negative pressure suction area from the first air inlet and the second air inlet at different positions up and down along with airflow, so that the flow direction of gas in the waste gas filtering and discharging machine is improved, and the suction effect of the waste gas paint mist in the whole operation area is ensured as far as possible.