17results about How to "Reduce air intake" patented technology

The invention relates to the technical field of pipeline repairing, and discloses a drainage pipeline non-excavation repairing airbag and a repairing method thereof.The drainage pipeline non-excavation repairing airbag comprises an inner bag and an outer bag, the outer bag and the inner bag are integrally manufactured, and a plurality of adjusting assemblies are arranged between the inner bag and the outer bag and comprise first air inlet pipes; the inner diameter of the first air inlet pipe is sequentially increased in the axis direction, an air blocking column is slidably connected to the interior of the first air inlet pipe, the diameter of one end of the air blocking column is consistent with the inner diameter of the lower end of the first air inlet pipe, an exhaust groove used for air circulation is formed in one end of the air blocking column, and the outer bag is located on the outer side of the inner bag. An air inlet assembly is arranged in the inner bag; under the action of the adjusting assembly, the air inflow is adjusted or air inflow is stopped according to the actual situation, when the interior of the repaired pipeline is concave, the air inflow is increased to enable the outer bag to expand again, repairing materials are more attached, and when the interior of the repaired pipeline is convex, the air inflow is reduced, and the situation that the outer bag is damaged due to too large air pressure is prevented.

The invention discloses a uniformly-distributed smoke exhaust or gas supply pipeline system and method, and belongs to the technical field of smoke exhaust, the uniformly-distributed smoke exhaust or gas supply pipeline system comprises a main pipeline, the air outlet end of the main pipeline is connected with a plurality of exhaust fans, and the main pipeline is symmetrically communicated with a plurality of suction units used for sucking smoke; the suction unit comprises first branch pipes and second branch pipes which are arranged in a staggered and communicated mode, a control assembly is arranged between the first branch pipes and the second branch pipes, the control assembly controls the first branch pipes and the second branch pipes to be communicated, and the first branch pipes or the second branch pipes located at the two ends of the control assembly are symmetrical. The first branch pipes and the second branch pipes are arranged in multiple stages, air inlet pipe openings are formed in the two ends of the first branch pipe or the second branch pipe of the last stage, and air suction hoods are arranged at the air inlet pipe openings. The problems that in a smoke exhaust system, the air inlet amount of each air suction opening is not uniform, and the smoke exhaust efficiency is low are solved.

The utility model belongs to the technical field of respiratory training device, specifically is a kind of resistance adjustable respiratory training device, including respirator shell;The side of respirator shell is movably installed with mouth head, the side of respirator shell surface close to mouth head is provided with adjusting assembly, the inner wall of respirator shell is provided with driving mechanism;The transmission assembly is arranged at the end of the rotating rod away from the screw rod, the surface of screw rod is provided with air resistance mechanism;Through the setting of rotating ring, limit ring, rotating rod, screw rod and limit plate, the cooperation of rotating ring and limit ring can be driven gear ring to rotate by the rotation of user, so that it can transmit power, limit ring can ensure that rotating ring can stably rotate in the inner wall of respirator shell, the cooperation of rotating rod and screw rod can be driven air resistance mechanism to move by rotating, so that it can carry out resistance adjustment, limit plate can limit air resistance mechanism.

The present invention discloses an aerator and an aeration method, belonging to the technical field of aeration equipment. It comprises: a plurality of aeration components and an aeration tube; the plurality of aeration components are all truncated cone-shaped and are connected in sequence, the small end of the first aeration component is connected to the large end of the second aeration component from bottom to top, and the lengths are equal, the small end of the second aeration component is connected to the large end of the third aeration component, and the lengths are equal, and so on, the small end of the top aeration component is connected to an aeration cap, the bottom of the bottom aeration component is closed, and the plurality of aeration components and the aeration cap together form a conical aerator body. In the process of gas entering the lower aeration component from the top aeration component, gas and water form bubbles, and the bubbles are cut by the cutting column. The use of multiple air cushion layers and cutting bubbles can form both uniform gas distribution and fine micro-nano bubbles, greatly increasing the dissolved oxygen efficiency, reducing the air intake, and achieving energy-saving effects.

The utility model discloses a kind of high-efficiency star cross-section array mufflers, the utility model relates to ventilation engineering technical field, including muffler body, the one end of the muffler body is provided with adjusting mechanism, the one end of the muffler body is provided with protective shell in front, the bottom of the muffler body is provided with bottom plate.The high-efficiency star cross-section array muffler, the cross-sectional shape of the sound-absorbing plate is star-shaped, 2 more than the traditional square cross-sectional structure, can guarantee the same ventilation area, the greater the sound-absorbing surface area, with higher unit length sound-absorbing amount, more efficient, make adjusting plate be in inclined state, reduce air intake at night, prolong the service life of sound-absorbing plate, if in other period, make baffle be in inclined state, but greater than the inclination angle of adjusting plate at night, avoid the " straight rush type " impact, guarantee the installation stability of sound-absorbing plate, to improve the service life, stability and sound-absorbing amount of sound-absorbing plate.

The present invention discloses a curtain wall type side sealing device for a sintering machine trolley, comprising a sealing wall, a sealing plate and a bottom seal, wherein the sealing wall is located on both sides of the trolley, and the sealing walls are connected by a connecting wall, and a plate that fits the side wall of the trolley is elastically connected to the inner wall of the sealing wall, and the plates are butted against each other to form a curtain wall structure, and a clearance groove is provided on the plate, and a connecting plate connected to the plate is elastically connected to the inner wall of the connecting wall, and the connecting plate seals the curtain walls, and sealing rods are provided on both sides of the bottom of the trolley, and the sealing rods are slidably matched with the bottom seal of the trolley. The curtain wall structure is adopted to reduce the air leakage at the connection of the trolley, and the plate is sealed by elastic contact through a spring, which can not only reduce the serious wear caused by excessive contact force, but also avoid the problem of poor sealing effect caused by wear, and solve the problem of reduced sealing effect caused by wear, so that heat can better sinter the ore and improve the sintering quality.

The invention discloses an automobile steering wheel ringing mechanism stamping die convenient to discharge, and belongs to the technical field of stamping dies, the automobile steering wheel ringing mechanism stamping die convenient to discharge comprises a die holder, a die frame is connected to the die holder, a female die is connected to the die frame, a plurality of implanting holes are formed in the outer wall of the female die, and nozzles with capillary micropores formed in the ends are inserted into the implanting holes; a pressure-relieving demolding assembly used for discharging is arranged between the inner side of the mold frame and the female mold, the pressure-relieving demolding assembly comprises a pressure-relieving cylinder which corresponds to the inner side of the mold frame and is connected to the mold base, and the one-way valve A is opened, air is sucked into the space, corresponding to the upper portion of a pressure-relieving plate, in the pressure-relieving cylinder through an air suction pipe, and the air inflow of the air suction pipe in unit time is small; therefore, the space, corresponding to the upper portion of the pressure buffering plate, in the pressure buffering cylinder is in a low-pressure environment, the pressure buffering cylinder is matched with the pressure buffering spring A and the pressure buffering spring B, the good buffering effect on the male die can be achieved, and meanwhile the load strength of the pressure buffering spring A and the pressure buffering spring B can be reduced.

The utility model discloses a vehicle-mounted radiator, including heat dissipation subassembly, including installation frame, fixed fixed transverse board on the inner wall of installation frame, fan fixed on fixed transverse board, the curved flow -through pipe fixed on the inner wall of installation frame, pass through the outer wall of installation frame and fixed cooling liquid inlet of one end of curved flow -through pipe and pass through the outer wall of installation frame and fixed cooling liquid outlet of the other end of curved flow -through pipe, dustproof subassembly, drip cooling subassembly. This kind of vehicle-mounted radiator, can block the impurity in the air through the dustproof net and dust screen set up, avoid the normal operation of fan to be affected by the impurity, and through motor drive pivot rotation, drive L type board and clean brush rotation, make clean brush can sweep down the impurity on the surface of dust screen, can avoid the impurity and reduce the air intake of fan to block dust screen, thereby reduce cooling effect.

The invention relates to the technical field of transferring equipment, and aims at providing a multi-section transferring mechanism which comprises a transverse moving mechanism, a clamping mechanism, a lifting mechanism, an inner frame set and an outer frame set, the transverse moving mechanism is used for transversely moving the whole transferring mechanism, and the clamping mechanism serves as an executing mechanism for the transferring mechanism to take and place materials and is used for clamping the materials; the lifting mechanism comprises a first-stage lifting air cylinder and a second-stage lifting air cylinder, serves as an executing mechanism for material lifting actions of the transferring mechanism and is used for providing lifting actions, the inner frame set is connected with the transverse moving mechanism and used for bearing the lifting mechanism, and the outer frame set is connected with the output end of the lifting mechanism and used for bearing the clamping mechanism. The first-stage lifting air cylinder and the second-stage lifting air cylinder are adopted, large-stroke driving and high-precision driving are achieved respectively, large-stroke lifting is met, and meanwhile the precision of the driving stroke is guaranteed.

The application discloses an energy-saving natural gas internal combustion generator set, which is characterized by comprising a box shell, a generator set whole, an exhaust device, a filtering device and a preheating device; any side surface of the box shell in the width direction is provided with an air inlet, and the length direction side surface is provided with an air outlet; the exhaust device comprises an exhaust pipeline which extends upwards to the top of the box shell; the preheating device is arranged on the side surface of the box shell of the air inlet and is communicated with the air inlet; the preheating device comprises a plurality of heat exchange pipelines, and the gaps between the heat exchange pipelines are used for gas flow, so that the gas outside the box shell enters the box shell through the gaps; the preheating device further comprises an air inlet part and an air outlet part which are communicated with the two ends of the heat exchange pipelines; the air inlet part extends into the box shell and is communicated with the exhaust pipeline, and the air outlet part is communicated with the exhaust pipeline outside the box shell, so that the hot gas in the exhaust pipeline is introduced into the air channel and then is discharged into the exhaust pipeline through the air outlet part, thereby heating the cold gas flowing through the gaps and improving the temperature of the gas entering the box shell.

The utility model relates to a power distribution cabinet fire-fighting emergency fire extinguishing device which comprises a power distribution cabinet and dry powder bottles arranged on the two sides of the power distribution cabinet, the power distribution cabinet is provided with an installation seat, the installation seat is provided with a monitoring mechanism, the two sides of the power distribution cabinet are provided with heat dissipation holes, and the dry powder bottles are provided with electromagnetic valves. According to the fire-fighting emergency fire extinguishing device for the power distribution cabinet, when a fire occurs in the power distribution cabinet, the monitoring mechanism can quickly monitor a fire signal and trigger the electromagnetic valve and the electromagnet to be synchronously started. The one-way rolling mechanism relieves one-way rotation limitation through an electromagnet, so that the flame-retardant cloth wound on the cross rod can be rapidly unfolded downwards, and a magnetic guiding counterweight strip at the lower end of the flame-retardant cloth rapidly and stably shields heat dissipation holes under the action of gravity and adsorption of a magnetic strip in the power distribution cabinet, so that fire is effectively prevented from spreading outwards through the heat dissipation holes, and the service life of the power distribution cabinet is prolonged. And meanwhile, the air inflow in the power distribution cabinet is reduced, and further development of fire is inhibited.

The application relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet with high-temperature automatic temperature control and cooling function, which comprises a directional temperature control device installed on the power distribution cabinet, the directional temperature control device comprises a plurality of separation control plates distributed in the power distribution cabinet, a temperature sensor is installed on each separation control plate, the plurality of separation control plates are used for separating the power distribution cabinet into a plurality of installation areas, an air inlet side plate is further installed on the side of the power distribution cabinet, a plurality of groups of air inlet holes are arranged on the side of the air inlet side plate, each group of air inlet holes is communicated with a corresponding installation area, an airflow channel is arranged in the air inlet side plate, a wind control adjusting device is arranged in the airflow channel, the wind control adjusting device is used for adjusting the air inlet amount of the air inlet holes, an air inlet device is further arranged on the side of the air inlet side plate, and an air outlet side plate is installed on the side of the power distribution cabinet away from the air inlet side plate, the application can effectively ensure the stable heat dissipation effect of the power distribution cabinet and simultaneously reduce the heat dissipation cost.

The utility model provides a mixer for a gas engine, which relates to the technical field of mixers and comprises a mixer body, a gas inlet connecting component is arranged at the joint of the mixer body, a sealing mounting component is arranged at the joint of the gas inlet connecting component, and a flow control component is arranged in the sealing mounting component. The sealing installation assembly is connected with the mixer body through the connecting gas inlet assembly, the flow control assembly is used for controlling the gas inlet area in the sealing installation assembly so as to control the flow, a transition piece is arranged between the sealing installation assembly and the connecting gas inlet assembly, and the transition piece is used for smooth transition movement of gas so as to control the flow. And by arranging the flow control assembly, an electric push rod in the flow control assembly can flexibly drive a blocking plate to move in a quadrilateral variable air inlet groove under cooperative control of a controller and an ECU, the exposed area of the air inlet groove is changed in real time, and the air inlet amount is accurately controlled.

The application discloses a RTO heat accumulating type incinerator and belongs to the technical field of incinerators. The incinerator comprises a furnace body and an exhaust box. The furnace body is provided with the exhaust box on one side. A partition plate is fixedly installed in the exhaust box. An air inlet pipe is fixedly installed on one side of the exhaust box. The air inlet pipe is connected with an exhaust port of the furnace body. The first electric fan blade, the temperature sensor and the equipment program are used in cooperation. The heat recovery mode can be changed according to the different exhaust gas temperatures. When the exhaust gas temperature is low, the heat recovery operation is not performed, and the exhaust gas is directly discharged into a subsequent gas treatment device, thereby reducing the energy consumption. When the exhaust gas temperature is high, the opening value of the first electric fan blade is changed to change the air inlet amount of the hot gas. The waste heat of the hot gas is recovered to heat the cleaning water. An additional heating device is not needed, the energy consumption is reduced, and the production cost of the factory is reduced.

The invention discloses an air compressor shell ventilation and heat dissipation structure, and relates to the field of air compressors, the air compressor shell ventilation and heat dissipation structure comprises a shell, a heat dissipation fan is installed on one side of the shell, a protective net is fixed to the heat dissipation fan, and a dust filter plate is arranged on the side, close to the shell, of the heat dissipation fan; a heat dissipation turbulent flow mechanism is arranged on the side, close to the heat dissipation fan, of the shell, and an auxiliary cleaning mechanism is arranged on the dust filtering plate. When the heat dissipation fan works, the heat dissipation turbulent flow mechanism works in the shell, the heat dissipation turbulent flow mechanism guides normal-temperature air sucked by the heat dissipation fan, the air compressor makes full contact with outside air, and meanwhile the auxiliary cleaning mechanism scrapes away dust filtered out by the dust filtering plate; therefore, outside air can enter the shell to make full contact with the air compressor, the heat dissipation effect is improved, and meanwhile the possibility that dust blocks the dust filter plate, ventilation is affected, and heat dissipation of the air compressor in the shell is poor can be reduced.

The utility model provides a fan coil with an air filtering structure, which relates to the technical field of fan coils and comprises a fan coil machine body, a centrifugal multi-blade fan is mounted on the front end face of the fan coil machine body, an air port filter is mounted at an air inlet at the side end of the centrifugal multi-blade fan in a threaded connection manner, and an air outlet filter is mounted at the air outlet of the centrifugal multi-blade fan. A first filter screen plate and a second filter screen plate are clamped and mounted on the inner side of the tuyere filter, a long-strip-shaped pressing plate is fixed to the left side end of the tuyere filter through fixing bolts, the side end of the long-strip-shaped pressing plate is connected with a small air compression pump through an air outlet pipe, and a transmission column penetrates through the middle of the first filter screen plate and the middle of the second filter screen plate; the right side of the transmission column is connected with a small motor through a rotating shaft, a dust blowing plate is arranged on the outer column face of the transmission column, and a dust blowing opening is formed in the left side face of the dust blowing plate. The fan coil solves the problem that in the prior art, dust is prone to being attached to a filter screen, the air inlet amount is limited, and the operation efficiency of the fan coil is affected.

The utility model relates to the technical field of pneumatic clamps, and discloses a cold plate pneumatic clamp which comprises a workbench and an air cylinder, a clamping plate is installed at the output end of the air cylinder, a clamping hole is formed in the bottom of the clamping plate, a limiting bolt is rotationally clamped in the clamping hole, and the end, facing the air cylinder, of the limiting bolt is connected with a threaded rod. The screw is sleeved with a limiting threaded pipe, a connecting rod is installed at the end, away from the screw, of the limiting threaded pipe, and the other end of the connecting rod is connected with a check block. After an air cylinder drives a clamping plate to move and before the clamping plate makes contact with a cold plate, a clamping hole in the bottom is clamped with a limiting bolt, at the moment, the moving clamping plate drives the limiting bolt to move, and the limiting bolt sequentially drives a screw rod, a limiting threaded pipe, a connecting rod and a check block to move in the moving process; the air inlet amount of the air inlet pipe to the air cylinder is reduced through the air holes, and therefore the impact force of the clamping plate before the clamping plate makes contact with the cold plate is reduced.