102results about How to "Won't flow backwards" patented technology

The invention discloses a lumber drying kiln. An isolation wall is arranged between the bottom part and the top part in the drying kiln, the isolation wall divides the space in the kiln into an air heating room used for installing a drying furnace, and a lumber drying room; wherein, an upper ventilation opening is arranged at the upper part of the isolation wall, a lower ventilation opening is arranged at the lower part of the isolation wall, a fan used for blowing air to the air heating room from the lumber drying room is arranged between the air heating room and the lumber drying room; an air exhaust passage is arranged at the top part corresponding to the lumber drying room; because the fan is arranged at the position of the upper ventilation opening, the fan sucks the hot air from the lumber drying room to blow into a lumber heating room, the back flow does not happen, thereby leading the heated air circulation to be smoother, therefore the drying quality to be improved. Because the isolation wall is arranged between the air heating room and the lumber drying room, the charring of the lumber close to a combustion furnace because of over high temperature is avoided, the lumber far away the combustion furnace does not have the drying phenomenon, to lead the drying to be evener.

The present invention provides a high power inhibition foam capable of preventing and controlling coal self-combustion and its generation equipment. It is characterized by that the pressure water flow is mixed with high power inhibition foam raw liquor according to a certain ratio, then their mixture is fed into a spray mixer under the action of negative pressure formed by water pressure and gas with a certain pressure in sprayer, and the gas, water and high power inhibition foam raw liquor can be fed into a foaming device by means of spraying mode under the gas pressure so as to make foam formation. Said foam can be used for covering coal body, and can be used for preventing coal self-combustion.

A surface cleaning device comprises a suction nozzle, a water tank, a suction machine set, a suction pipeline and a negative pressure pipeline, wherein the suction nozzle is used for absorbing liquid on the surfaces of objects and outside air in the process of cleaning the surfaces of the objects; the water tank is provided with a cavity and used for collecting the absorbed liquid; the suction machine set is used for generating negative pressure and forming suction force; the suction pipeline is connected between the suction nozzle and the water tank and used for transporting the absorbed liquid and the outside air to the water tank; the negative pressure pipeline is connected between the suction machine set and the water tank and connected with an air path of the suction pipeline through the cavity inside the water tank. The surface cleaning device is characterized in that the suction nozzle, the suction pipeline, the water tank, the negative pipeline and the suction machine set are sequentially arranged from top to bottom; the liquid and the outside air absorbed by the suction nozzle enter the water tank along the same path through the suction pipeline from top to bottom; the liquid absorbed by the suction nozzle is collected by the water tank after entering the water tank; the outside air absorbed by the suction nozzle continues to flow along the path from top to bottom after entering the water tank and is exhausted by the suction machine set after passing through the negative pressure pipeline. The surface cleaning device is simple in structure, and can rapidly absorb the liquid on the surfaces of the objects and collect the liquid in the water tank.

The invention provides a gas liquid mixing apparatus and an application method thereof. The gas liquid mixing apparatus comprises a liquid inlet pipe (19) and a gas inlet pipe (17), and is characterized in that the gas liquid mixing apparatus also includes a gas distributor pipe (3) and a drive unit. One end of the gas inlet pipe (17) is equipped with a plurality of first gas spray orifices (18),which are inserted into liquid inlet pipe (19); the gas distributor pipe (3) is sleeved in the gas inlet pipe (17) and is equipped with a plurality of second gas spray orifices (2) on corresponding positions of the first gas spray orifices (18) at one end; the drive unit drives the gas distributor pipe (3) to move, so as to adjust relative positions of the first gas spray orifices (18) and the second gas spray orifices (2). The gas liquid mixing apparatus of the present invention can rapidly cut out gas feed when gas lateral pressure and flow are reduced, so as to guarantee no backflow.

The invention discloses an automatic water supplementing steam generating device comprising a water tank assembly, a steam generator, a steam pot, a heating body and an anti-burning device. The water tank assembly is flexibly arranged above a water tank seat, the steam generator is fixedly arranged above the water tank seat, the heating body is arranged under the steam pot, the lower end of the water tank is provided with a water outlet valve, the water outlet valve is communicated with the lower end of the steam pot through a connecting pipe, and the connecting pipe is arranged in the water tank; the end of the connecting pipe connected with the water outlet valve is provided with a water inlet valve, the water inlet valve is mutually matched with the water outlet valve, the upper end of the steam pot is communicated with the inner upper end of the water tank of the water tank assembly through an air pressure balance pipe. By the application of the automatic water supplementing steam generating device, automatic water supplementing is achieved, water pumps are omitted, and cost is effectively decreased; by the arrangement of an automatic decompression device and an anti-dry burning temperature sensor, the performance of safety use is high, the pressure of steam outputting is adjustable and potential risk is eliminated effectively by the arranged anti-burning device.

The invention relates to the technical field of gear machining, in particular to a gear deburring device. The gear deburring device comprises a hollow base. A first rotation shaft and a second rotation shaft are arranged on the two sides of the base correspondingly. A plurality of same to-be-machined gears penetrate the first rotation shaft. Tooth grooves of the gears on the first rotation shaft are opposite in the longitudinal direction. The first rotation shaft is provided with a motor. A winding belt is wound around the second rotation shaft, and longitudinal strip-shaped grooves and transverse strip-shaped grooves are evenly formed in the winding belt and divide the winding belt into the grid shape. Air bags are arranged in grids on the winding belt and externally provided with elastic fine abrasive paper. A hollow interlayer is arranged on the winding belt. One-way air inlet holes communicating with the hollow interlayer are formed in the connecting positions of the air bags and the winding belt. The hollow interlayer of the winding belt is connected with an air blower. The lower end of the second rotation shaft is connected with an air cylinder. The problems that the process of deburring between teeth of the gears is not uniform, consequently, dull polish patterns exist between the gears obtained after being deburred, and the tooth profile of the gears is damaged are solved.

The invention discloses a skylight-type condom, which comprises a condom body made from elastic materials and provided with a closed end and an open end, and a reservoir tip at the top of the closed end of the condom body, wherein the condom body is divided from the middle to front a front condom body section with the closed end and a rear condom body section with the open end; the front condom body section and the rear condom body section are integrated through at least two connecting ribs; the connecting ribs and the edge of the divided part of the condom body form an exposed hole; and a blockage ring integrated with the front condom body section is arranged in the front condom body section. The skylight-type condo adopts, a simple and smart sectional design, and the front condom body section and the rear condom body section are integrated by the connecting ribs, so that a penis nerve sensitive area is maximally exposed at the local part of the condom body, and the real sexual pleasure of a man is enhanced; and meanwhile, the membrane-type blockage ring is arranged in the front condom body section, and a blockage area is formed near the closed end of the condom body and the reservoir tip, so that seminal fluid can be limited in the area and is effectively prevented from flowing backwards and leaking out.

The invention provides a humidifying structure, an indoor unit and an air conditioner unit. The humidifying structure comprises a fixing plate, a cover plate, a water inlet pipe and a humidifying assembly. According to the humidifying structure, the indoor unit and the air conditioner unit, the cover plate is simply dismounted and mounted on the fixing plate during mounting and repairing, and a water inlet pipe and a water returning pipe can be dismounted and mounted after dismounting the cover plate, and thus the operation step of removing the whole humidifying structure and then replacing apipeline in a traditional dismounting and mounting process is avoided; water pipes in a machine body are kept in inclination structures, so that water cannot flow out of the machine body under the gravity effect in case of water leaking in a connector, and the arraignment of the water pipes in the unit; connecting end ports are prevented from being stressed to cause water leaking; the humidifyingassembly is arranged in the humidifying space and is capable of effectively preventing large water droplets from being directly blown out of the unit or cause potential risk of water leaking; and water from all water outlet positions of a heat exchanger and the humidifying structure can be borne, and thus the problem of water leaking of the indoor unit is avoided.

The invention relates to the technical field of boiler dust cleaning equipment, in particular to a mixed ignition device for a shock wave dust cleaning system. The shock wave dust cleaning system comprises a dust cleaning control device, an air source supplying device and a plurality of shock wave generating devices, wherein the air source supply device comprises a first fuel gas pipeline, a firstair pipeline and a first wiring terminal box; the mixed ignition device comprises a second fuel gas pipeline, a second air pipeline, a mixing tank, n mixed gas pipelines, a second wiring terminal box, an ignition control box and an ignition head, wherein the mixed gas outlet of the mixing tank is connected with the n mixed gas pipelines, and a first manual valve and a normally-open electric control valve are sequentially arranged on each mixed gas pipeline; and the mixed gas pipelines are connected with the shock wave generating devices in a one-to-one correspondence mode. The gas shock wavedust cleaning system solves the problem that an existing gas shock wave dust cleaning system has the serious equipment corrosion in the use of corrosive flue gas boilers such as waste incineration andthe like, and has the advantages of being complex in configuration structure, high in operation failure rate, low in operation efficiency and the like.

The invention provides a dredger of an improved structure and belongs to the technical field of ships. The dredger of the improved structure comprises a ship body and a silt suction pump, an inlet of the silt suction pump communicates with one end of a silt suction main pipe, and a silt collection device is arranged at the other end of the silt suction main pipe. The silt collection device comprises a bypass pipe, two silt collecting wheels and driving devices driving the silt collecting wheels to rotate. The bypass pipe is bent, the two ends of the bypass pipe communicate with the silt suction main pipe, the upper end and the lower end of the bypass pipe are located between an inlet and an outlet of the silt suction main pipe, first one-way valve plates are arranged at the upper end port and the lower end port of the bypass pipe, a piston is connected into the silt suction main pipe in a sliding mode, a piston rod of the piston downwards extends out of the silt suction main pipe, the piston and the two silt collecting wheels are connected through a transmission mechanism which can make the piston rod rotate in a reciprocating mode along with the two silt collecting wheels, a second one-way valve plate is arranged at the inlet of the silt suction main pipe, an energy dissipation box is arranged in a silt bin, and a silt discharge pipe communicates with the energy dissipation box. The dredger has the advantages of being easy to control, more reliable in work and the like.

The invention relates to spraying apparatus, and particularly relates to disinfectant powder spraying apparatus for aquaculture. The technical problem to be solved is to provide disinfectant powder spraying apparatus for aquaculture, and the disinfectant powder spraying apparatus can uniformly spray disinfectant powder out and can spray the disinfectant powder into a cultivation pond more uniformly. The technical scheme is as follows: the disinfectant powder spraying apparatus for aquaculture comprises a box body, supporting legs, an L-shaped plate, an air pump, one-way valves, an air inlet pipe and the like; the four corners of the bottom of the box body are each provided with one supporting leg; the L-shaped plate is arranged on the right part of the bottom of the box body; the air pumpis arranged in the L-shaped plate; the left side and the right side of the box body are both provided with the one-way valves; the two one-way valves both communicate with the box body; and the air inlet pipe is hermetically connected with the air pump. According to the invention, a discharging pipe is driven to swing through a swinging device, so that the disinfection powder is sprayed more evenly; the discharging is carried out quantitatively through a discharging device; and through the arrangement of an angle adjusting device, the spraying angle of the disinfection powder can be adjusted,so that the effect that the disinfectant powder can be uniformly sprayed out and can be sprayed into the cultivation pond more uniformly is achieved.

The invention provides a low-emission environment-friendly vehicle-mounted hydrogen production device and a control method. The vehicle-mounted hydrogen production device comprises an engine storage battery, a hydrogen and oxygen production machine, a hydrogen and oxygen production machine switch relay, a hydrogen and oxygen storage system and an electronic control unit. The electronic control unit is connected with the storage battery which is connected to the hydrogen and oxygen production machine through the hydrogen and oxygen production machine switch relay, and the hydrogen and oxygen storage system is connected to the hydrogen and oxygen production machine. The online hydrogen production and storage and hydrogen-oxygen mixture supply system suitable of vehicles is provided to solve the problems that hydrogen infrastructure construction is not enough, hydrogenation is difficult and hydrogen and oxygen storage is hard to achieve through existing hydrogen production systems. Hydrogen and oxygen storage pressure is low (about 3 bar), the strength of a hydrogen and oxygen storage tank can be greatly reduced compared with a traditional automotive high-pressure hydrogen and oxygen storage tank, the weight and manufacturing cost of a hydrogen production system are reduced, and economy and system practicability of a whole vehicle can be conveniently improved.

The invention relates to an electric planer with a heat dissipation function. The electric planer comprises a shell, a motor structure, a cutter body structure, an air channel and fans. The motor structure and the cutter body structure are arranged in a cavity A and a cavity B of the shell through a shaft A and a shaft B correspondingly, wherein the shaft A and the shaft B are parallel to each other. The motor structure and the cutter body structure are connected through a belt wheel. The fans are fixed between the cavity A and the cavity B and communicate with the cavity A or the cavity B through the air channel. The fans are fixed to the shell through a shaft C parallel to the shaft A. The fans comprise the fan A located at the left end of the shaft and the fan B located at the right end of the shaft. The fan A is connected with the cavity A through the air channel, and the fan B is connected with the cavity B through the air channel. The electric planer has the beneficial effects that according to the electric planer with the heat dissipation function, the fans are mounted through the third shaft, the number of the fans is two, the fans can operate independently, and the cutter body structure and the motor structure can be subjected to heat dissipation at the same time.

The invention discloses a suction tube device used for orthopedic surgery. The suction tube device used for the orthopedic surgery comprises a suction tube and a negative-pressure tube, wherein the suction tube is connected with a suction apparatus head; the negative-pressure tube is connected with a negative-pressure bottle; a filter cavity is connected between the suction tube and the negative-pressure tube. The filter cavity consists of a filter screen cavity and a fragment storage cavity, wherein the opening of the filter screen cavity and the opening of the fragment storage cavity are connected with each other, and the filter screen cavity and the fragment storage cavity are respectively made of a transparent rubber material or plastic; the filter screen cavity is connected with the negative-pressure tube; a filter screen is arranged in the filter screen cavity; a conduit is arranged in the fragment storage cavity; the conduit extends from exterior of the bottom part of the fragment storage cavity to the outer end of the opening of the fragment storage cavity; and the suction tube is connected with one end of the conduit, which is located outside the bottom part of the fragment storage cavity. Thus, on one hand, blocking cannot be generated in the suction tube and the suction apparatus head, and bone fragments can be stored in the fragment storage cavity, and meanwhile, on the other hand, the fragments in the fragment storage cavity can be conveniently poured out; blood cannot flow back to the suction tube, and thereby, complications are effectively prevented from occurring.

The invention provides a gear shaft for an automobile steering device. The gear shaft for the automobile steering device comprises a steering device body (1) and a gear shaft body (2), wherein the gear shaft body (2) comprises a transmission part (21) arranged inside an inner cavity (3) of the steering device body (1) and an extending part (22) extending out of the inner cavity (3), the extendingpart (22) is connected with a steering wheel, the transmission part (21) is provided with a tooth face (23) matched with a toothed bar (4), and the inner cavity (3) is sealed and filled with lubricating oil. According to the gear shaft for the automobile steering device, the steering device inner cavity is filled with enough lubricating oil, and engaging between the gear shaft and the toothed baris made to be sufficiently lubricated.

The invention discloses a condom with a hoop, belongs to articles for family planning and solves the problem that semen flows back to cause discomfort after ejaculation of men and condoms slip off in female vagina to cause unplanned pregnancy due to unreasonable structure of existing condoms. The condom with the hoop comprises a condom body and a semen storage bag, wherein the condom body made of elastic materials is provided with a closed end and an open end, and the semen storage bag is arranged at the top of the closed end of the condom body. The hoop integrated with the condom body is arranged at a position of the closed end of the condom body 10-35mm distant from the semen storage bag. The condom with the hoop is simple and skillful in design, the hoop in film type is arranged at the closed end of the condom body, so that an isolation area is formed near the semen storage bag, semen can be limited in the isolation area and is prevented from flowing backwards, cleaning comfort of man penis without backflow semen is enhanced, and possibility that the condom body is easy to slip off in the female vagina by lubricating of the backflow semen is avoided.