11results about How to "Guaranteed ventilation" patented technology

The utility model discloses an L-shaped extension tube of a breathing machine. The L-shaped extension tube comprises a sputum suction tube connector and a connector breathing machine connecting tube communicated with a sputum suction tube. An anti-splashing front film is arranged at the top of the sputum suction tube connector, a sputum suction hole allowing a sputum suction tube to be inserted is formed in the anti-splashing front film, an anti-splashing bottom film located below the anti-splashing front film is arranged in the sputum suction tube connector, and one side of the anti-splashing bottom film is fixedly connected with the anti-splashing front film. The anti-splashing bottom film has the initial state that the anti-splashing bottom film is attached to the lower portion of the anti-splashing front film when not stressed and the offset state that the other side of the anti-splashing bottom film is pushed by external force to move downwards. When the sputum suction tube needs to be inserted, the side, not connected with the anti-splashing front membrane, of the anti-splashing bottom membrane is pushed to move downwards due to insertion of the sputum suction tube, the anti-splashing front membrane is kept in the original position, and when the sputum suction tube is inserted and pulled out, due to double-layer blocking of the anti-splashing front membrane and the anti-splashing bottom membrane, the anti-splashing front membrane is prevented from splashing. Liquid can be prevented from being splashed out of the sputum suction tube connector, and operation safety is guaranteed.

The utility model relates to the technical field of packaging bags, and discloses an automatic exhaust flexible packaging bag which comprises a packaging bag body, a first sealing part is fixedly installed above the packaging bag body, and a sealing piece is fixedly connected with an easy-to-connect inserting strip. The first sealing part is fixedly installed above the packaging bag, the sealing opening is formed in the first sealing part, and the easy-to-connect inserting strip is fixedly installed in the sealing opening, so that when food in the packaging bag needs to be placed in a microwave oven to be heated, the packaging bag is flatly placed, and when the food is heated at the moment, the packaging bag is placed in the microwave oven to be heated. Due to the fact that waste heat in an installation groove can expand, a first sealing part and a second sealing part are separated, the first sealing part is expanded upwards, a sealing piece is driven to be separated from the interior of an air hole, the air hole is opened, and the interior of the air hole is communicated with the interior of the packaging bag, the air hole has the ventilation effect; and the risk of expansion explosion in the packaging bag is prevented.

The utility model discloses a semi-closed greenhouse climate chamber which comprises a climate chamber body located on one side in a greenhouse, a vertical lifting window is arranged in the middle of the side, away from the greenhouse, of the climate chamber body, and a corresponding wet curtain is arranged on the inner side of the vertical lifting window. The upper end and the lower end of the wet curtain are connected with the upper end and the lower end of the vertical lifting window through corresponding hot-dip plate sealing pieces. The climate chamber is arranged on one side of the interior of the greenhouse, the vertical lifting window is arranged on the side, away from the greenhouse, of the climate chamber, the top pivoted window is arranged on the top of the climate chamber, the wet curtain is arranged on the inner side of the vertical lifting window, and the positive pressure fan is connected with the long air duct. When the positive pressure fan works, the top pivoted window on the top of the climate chamber is closed, and the vertical lifting window of the wet curtain is closed; cooling and heating loads are conveyed to the positive pressure fan through a pipeline and then conveyed to roots of crops through the air duct, and therefore the climate adjusting function is achieved. When the humidity of the greenhouse needs to be increased, the wet curtain water supply system works, and the positive pressure fan operates to convey the humidity into the greenhouse.

The utility model discloses a feeding, smashing and screening all-in-one machine which comprises a mounting frame, a feeding assembly, a smashing assembly and a double-vibration-source screening assembly, the feeding assembly is arranged at the top of the mounting frame, an induced draft fan is fixedly installed at the top of the feeding assembly, a discharging hopper is installed at the bottom of the mounting frame, and the bottom of the discharging hopper is fixedly communicated with the top of the smashing assembly. The bottom of the smashing assembly fixedly communicates with the top of the double-vibration-source screening assembly. By arranging the induced draft fan, impurities attached to the filter element can be blown into the back-blowing bag cleaner to be collected, accumulation of the impurities is avoided, and the ventilation effect of the filter element is guaranteed; by arranging the smashing assembly, materials can be efficiently smashed, the fineness of the materials is improved, and convenience is provided for subsequent screening work; and through the arrangement of the double-vibration-source screening assembly, the materials can be efficiently screened, false caking in the materials is avoided, and the screening effect is improved.

The utility model belongs to ship fuel supply technical field, specifically disclose LNG power ship fuel supply system delivery line, including cold box, gas delivery section, gas input section, GVU valve box, air input pipe, air output pipe, fan and gas engine, gas delivery section is double -walled pipe structure, including inner tube and the outer tube of bushing in the outer side of inner tube, GVU valve box includes valve piece and casing, cold box, inner tube, valve piece, gas input section and gas engine are connected in proper order, constitute gas delivery line, air input pipe, casing, outer tube, fan and air output section constitute air delivery line, and air input pipe is linked together with heat exchange structure. The utility model's gas delivery section uses double -walled pipe all -time, not only can promote the service life of gas pipeline, can also guarantee the stability of gas state in gas pipeline inside, and through heat exchange structure to the air of entering outer tube heat exchange treatment, guarantee the stability of air temperature of entering outer tube, and then guarantee the state of inner tube gas.

This invention discloses a biofilter packing material for VOCs organic waste gas treatment and its preparation method, belonging to the technical field of biofilter packing materials. The biofilter packing material for VOCs organic waste gas treatment of this invention includes a nutrient slow-release core, a conductive functional shell layer, and a surface functionalized layer. The dry weight percentages of the raw materials for the nutrient slow-release core, conductive functional shell layer, and surface functionalized layer are 50%-60%, 35%-45%, and 3%-5%, respectively. The biofilter packing material for VOCs organic waste gas treatment and its preparation method proposed in this invention adopt a three-layer composite structure of a nutrient slow-release core, a conductive functional shell layer, and a surface functionalized layer. The core is responsible for the long-term supply of nutrients and carbon sources; the shell layer achieves efficient adsorption, conductive transfer, and microenvironment regulation; and the surface layer ensures the rapid colonization and targeted degradation of functional microorganisms. This spatial functional partitioning avoids mutual interference between different components and greatly improves the overall performance of the packing material.

The application relates to a methanol engine knock suppression and protection device, which comprises an engine body, an air inlet pipe connected with the engine body, and a back gas pipeline connected with the engine cylinder; the back gas pipeline is provided with a cooling mechanism, the cooling mechanism comprises a cooling pipeline arranged on the back gas pipeline, an air passage pipeline assembly for controlling the air passage direction, and a heat transfer mechanism for cooling through heat transfer; the air passage direction is changed through the air passage pipeline assembly, and cooling is realized through cooperation with the transmission protection mechanism. Under the non-knock working condition, the magneto-rheological fluid is in a liquid state after power-off, the air nozzle remains absolutely horizontal and straight, the memory alloy ring is not protruded and adheres to the wall, and the fuel economy of the engine is ensured; the air nozzle is turned over and the wall alloy ring is protruded, so that strong directional turbulent flow is generated, and the bottleneck of low gas heat exchange efficiency is broken from the bottom logic of aerodynamics.

This utility model relates to the field of soil remediation technology and discloses a device for earthworm-based soil remediation of heavy metals. The device includes a remediation bed with a gantry frame fixedly connected to its top. A drive mechanism is located near the top of the gantry frame, and a support frame is located at the bottom of the drive mechanism. An adjustable-height soil-turning mechanism is mounted on the support frame. Light sources are fixedly installed on the top of the inner wall of the gantry frame and on both sides of the drive mechanism. This utility model, through the combined use of the drive mechanism and the adjustable-height soil-turning mechanism, enables the soil-turning rake within the mechanism to repeatedly and automatically turn the soil on the surface of the contaminated soil mixture layer, preventing surface soil compaction, ensuring soil aeration, and replacing manual soil-turning operations, thus reducing the labor intensity of workers and saving time and effort.

The clinical ventilation equipment structurally comprises a mask, an output body, bandages, a ventilation plate face and an air pipe, the ventilation plate face is arranged in the mask, the bandages are fixedly connected to the two sides of the mask, the ventilation plate face and the air pipe are connected together in a sleeved mode, and the output body is arranged at the end of the air pipe; a reset structure and a limiting body are arranged in an output main body through a partition plate, when the oral cavity and the pharynx of a patient receive anesthetic gas in an adapting shell to secrete saliva, the saliva can enter a soft frame from the partition plate through soft frame infiltration, and the reset structure between the patient and the soft frame can carry the saliva in a reciprocating and spiral rotating mode under the control of the limiting body; and saliva can be prevented from flowing backwards into the drawing wire in the adaptive shell, so that the output speed and metering of anesthetic gas are prevented from being influenced, and the clinical ventilation capacity of the equipment for general anesthesia in the orthopedics department is ensured.

The utility model discloses a kind of pull-out type electric complete low-voltage power distribution cabinet equipment, it is related to low-voltage power distribution cabinet technical field, including electric cabinet main body and the drawer box being arranged in electric cabinet main body inside;The lower end of the drawer box is fixed with sliding block, and sliding block is located in the sliding groove being opened in electric cabinet main body inside, and the outside of electric cabinet main body is fixedly installed with air inlet frame.This pull-out type electric complete low-voltage power distribution cabinet equipment, power supply is carried out between cabinet body joint and box body joint using power line, cabinet body joint is used to power supply for the electric appliance inside cabinet body, and box body joint is used to power supply for the electric appliance inside drawer box, effectively guarantee the stability of the electric appliance inside the cabinet body, can make the state of power line adjustment, satisfy the different state power demand of drawer box, and make power line reset when limiting strip and movement strip reset, avoid wire winding, can guarantee the power effect of the electric appliance inside the cabinet body.

The application discloses a computer network security management protection device with high heat dissipation efficiency, and relates to the technical field of computer protection devices, which comprises a shell, a computer network security management body arranged in the shell, second installation grooves are arranged in the lower parts of the left and right side walls of the shell, side dustproof nets are fixed in the two second installation grooves, a first installation groove is arranged on the inner bottom wall of the shell, a third installation groove is arranged in the inner top wall of the shell, a top dustproof net is fixed in the third installation groove, two ventilation channels symmetrical to each other are arranged in the shell, the two ventilation channels respectively pass through the two second installation grooves, and one end of the ventilation channel is communicated with the first installation groove. The application can meet two different heat dissipation requirements through two heat dissipation paths, and effectively improves the heat dissipation efficiency.