15results about How to "Solve Exhaust Problems" patented technology

The invention discloses a machining device and method for a casting pipeline sand core exhaust channel, and belongs to the technical field of casting machining.The machining device comprises a copper pipe, a file, a punching platform, a conical needle, a core box mold and a hole filing mechanism, the punching platform is used for limiting and supporting the copper pipe, and the hole filing mechanism is used for clamping the file and driving the file to file a sinking groove in the copper pipe; the conical needle is used for continuously drilling an exhaust hole in a sinking groove of the copper pipe, the copper pipe is used for being laid in a core box mold, the core box mold is used for casting and forming pipeline core sand and comprises a sand shooting nozzle and a core head, the sand shooting nozzle is used for filling precoated sand into the core box mold, and the precoated sand covers the copper pipe; the end face of the copper pipe is exposed out of the core head so that the pipeline sand core can be exhausted in the baking and pouring process. A copper pipe, a file, a conical needle, a core box mold and other simple and practical tools can be utilized, a pipeline exhaust channel is formed through a reasonable method, precoated sand pipeline sand core exhaust is achieved, and therefore the influence of gas on a casting is reduced.

The application discloses a complex sand core gas evolution and local temperature coupling control device which is composed of a central control cabinet, a circulating machine, a water tank, a vacuum pump, a sand core exhaust heat dissipation pipeline and a conformal patch, wherein the central control cabinet is connected with the circulating machine, the vacuum pump and a pouring control system, the main body of the central control cabinet is a central control computer and a PLC electric control system, and the central control cabinet is used for receiving a pouring signal and controlling the circulating machine and the vacuum pump; a cooling system is arranged in the circulating machine, a liquid inlet end of the cooling system is connected with the water tank, and a liquid outlet end of the cooling system is connected with a liquid inlet of the sand core exhaust heat dissipation pipeline; one end of the water tank is connected with the circulating machine, and the other end of the water tank is connected with a liquid outlet of the sand core exhaust heat dissipation pipeline; and the main body of the sand core exhaust heat dissipation pipeline is a copper pipeline, and the middle section of the copper pipeline is tightly attached to the conformal patch. The device can solve the problems that the existing sand casting technology cannot realize the local temperature field control of complex irregular inner cavities, the end sand core gas evolution cannot be discharged in time and the like, and high-quality cores which meet the complex inner cavity forming and quality requirements of high-end aluminum alloy castings can be produced.

The invention relates to an anti-oil-throwing waste grease collecting system and a variable pitch bearing system. The problem of oil throwing can be avoided while smooth exhaust is guaranteed. The waste grease collecting pipe is used for collecting and storing waste grease; the waste grease collecting unit comprises a three-way connector, one connector of the three-way connector is used for being connected with a grease discharging opening of a bearing, and the other two connectors are used for being connected with waste grease collecting pipes respectively. The waste grease collecting pipe is connected between any two adjacent three-way joints; small exhaust holes are formed in the waste grease collecting pipe and / or the three-way connector, oil absorption sealing bodies made of oil absorption expansion materials are arranged at the small exhaust holes, and the oil absorption sealing bodies have the first working state that the small exhaust holes are opened when the oil absorption sealing bodies do not make contact with the waste grease and the second working state that the oil absorption sealing bodies can expand and block the small exhaust holes when making contact with the waste grease.

The utility model relates to a power cable accessory, in particular to a novel separable connector. The utility model discloses a novel separable connector, which comprises a connector jacket and an insulating layer sleeved in the connector jacket, a diversion layer is arranged below the tail end of the insulating layer, and the diversion layer is arranged in an annular gap below the insulating layer. The arrangement of the diversion layer solves the problems of suffocation and glue overflow at the tail end of the insulating layer in the production process of the separable connector, avoids the defects of a traditional diversion structure, and provides guarantee for long-time safe and reliable operation of the separable connector.

The invention relates to the technical field of liquid injection, and discloses a filling system and a filling method.The filling system comprises a valve set, a first valve set, a second valve set, a third valve set and a fourth valve set, the first valve set and the second valve set are communicated with a first opening of a two-way hydraulic unit, and the third valve set and the fourth valve set are communicated with a second opening of the two-way hydraulic unit; the vacuumizing piece is communicated with the first channel and the third channel; the liquid injection part is communicated with the second channel and the fourth channel; the filling system has a vacuumizing state, a first liquid injection state and a second liquid injection state, in the vacuumizing state, the first channel and the third channel are opened, and the second channel and the fourth channel are closed, in the first liquid injection state, the first channel and the fourth channel are opened, and the second channel and the third channel are closed, and in the second liquid injection state, the second channel and the third channel are opened. The first channel and the fourth channel are closed. The filling system can reduce the gas amount in the two-way hydraulic unit, increase the liquid filling amount in the two-way hydraulic unit, and improve the performance and reliability.

The utility model belongs to the field of aerial work machines, and relates to a floating oil cylinder hydraulic system and an aerial work machine. The floating oil cylinder hydraulic system comprises a left front axle oil cylinder and a left front reversing valve used for switching and controlling the left front axle oil cylinder to stretch out and draw back. The right front axle oil cylinder comprises a right front reversing valve used for switching and controlling the right front axle oil cylinder to stretch out and draw back; a left front short-circuit oil way is connected between a rod cavity and a rodless cavity of the left front axle oil cylinder, the left front control valve set comprises a left front on-off valve used for controlling the left front short-circuit oil way in an on-off mode, and a right front short-circuit oil way is connected between a rod cavity and a rodless cavity of the right front axle oil cylinder. The right front control valve set comprises a right front on-off valve used for controlling on-off of the right front short circuit oil way. The left front axle oil cylinder and the right front axle oil cylinder are double-acting oil cylinders, so that the problems of hydraulic oil leakage risk and exhaust difficulty of a single-acting oil cylinder can be solved. Floating or locking of the oil cylinder can be achieved by controlling connection and disconnection of the short-circuit oil way. The leveling function can be achieved by controlling the left front reversing valve and the right front reversing valve.

An aero-engine test stand oil supply device and method with exhaust function, the oil supply device comprises a test stand, further comprising an oil depot, an oil tank, an oil gas separation tank and a recovery tank; the oil depot is used for storing aviation kerosene, and the oil depot is connected to the oil tank through a first oil pipeline; a pressure pump is connected to the oil tank through an air pipe; the oil tank is connected to the oil gas separation tank through a second oil pipeline; the oil gas separation tank is connected to the test stand through a third oil pipeline; the oil gas separation tank is further connected to the recovery tank through a fourth oil pipeline; a first valve is arranged on the first oil pipeline, a second valve is arranged on the third oil pipeline, and a third valve is arranged on the fourth oil pipeline; a shock device is arranged beside the second oil pipeline and used for shocking the oil pipeline. The shock device can shock the oil pipeline, and the aviation kerosene containing gas can be discharged into the recovery tank after the pressure pump is pressurized, so as to solve the problem of exhaust of the aero-engine test stand oil supply pipeline.

The invention relates to a semiconductor testing process, in particular to a chip positioning method, which comprises the following steps of: placing a plastic plate on a positioning area between tracks, and placing a chip on the top of the plastic plate; the power supply module drives the first electromagnetic valve to control the positioning cylinder to hook and limit the plastic plate; after the plastic plate is hooked and limited by the positioning cylinder, the power supply module drives the time relay to operate, and the time relay intermittently controls the second electromagnetic valve to drive the pneumatic vibrator to vibrate, so that the chip falls into a positioning groove of the plastic plate after being vibrated; wherein an exhaust pipe of the pneumatic vibrator penetrates through a top plate of the rack and leads to the bottom of the rack, and in the intermittent vibration process of the pneumatic vibrator, the exhaust pipe intermittently exhausts waste gas to the bottom of the rack; and after the chip falls into the positioning groove of the plastic plate, the limiting is released and the plastic plate is driven to leave the positioning area. By means of intervention of the positioning air cylinder, unstable factors caused by related defects of electric control are avoided, and the exhaust problem of the positioning air cylinder is also solved.

The utility model discloses a typhoon-resistant container type diesel generating set for offshore wind power. The typhoon-resistant container type diesel generating set comprises a diesel generator, an oil storage tank, a container body and a control cabinet, an air inlet and an air outlet are respectively formed in two ends of the container body; an air inlet filtering system is arranged at the air inlet; an exhaust heat dissipation system is arranged at the exhaust outlet; the peripheral surface of the container body is of a corrugated structure; the diesel generator, the oil storage tank and the control cabinet are all mounted in the container body; the control cabinet is connected with the air inlet filtering system and the air exhaust heat dissipation system. According to the marine container, the air inlet and the air outlet of the container body are additionally provided with the air inlet filtering system and the air outlet heat dissipation system respectively, the air inlet filtering system and the air outlet heat dissipation system are controlled through the control cabinet, and the problems of air inlet and air outlet in the marine environment can be solved. The diesel generator, the oil storage tank and the control cabinet are all mounted in the container body, and the peripheral surface of the container body is of a corrugated structure, so that the problem of typhoon resistance strength can be solved.

A complex sand core gas generation and local temperature coupling control device is disclosed. The device comprises a central control cabinet, a circulating machine, a water tank, a vacuum pump, sand core exhaust and heat dissipation pipes, and conformal patch. The central control cabinet is connected to the circulating machine, vacuum pump, and pouring control system. The main body of the central control cabinet is a central control computer and a PLC electrical control system, used to receive pouring signals and control the circulating machine and vacuum pump. The circulating machine has an internal cooling system; its inlet is connected to the water tank, and its outlet is connected to the inlet of the sand core exhaust and heat dissipation pipes. One end of the water tank is connected to the circulating machine, and the other end is connected to the outlet of the sand core exhaust and heat dissipation pipes. The main body of the sand core exhaust and heat dissipation pipes is a copper pipe, with its middle section tightly fitted to the conformal patch. This device can solve the problems of existing sand casting technology, such as the inability to achieve local temperature field control in complex irregular internal cavities and the inability to timely discharge gas generated from the end sand core, producing high-quality cores that meet the forming and quality requirements of complex internal cavities in high-end aluminum alloy castings.

An exhaust node structure for a shallow soil covering area of a water supply pipeline under a road comprises the water supply pipeline (7), a 90-degree elbow (4), a water supply short pipe (5), a gate valve (2) and an exhaust valve (1), and the water supply short pipe (5) is connected with the gate valve (2) through the 90-degree elbow (4); the water supply short pipe (5) is connected with the water supply pipe (7) through the 90-degree elbow (4); the water supply pipeline (7) is parallel to a road surface (3) and is laid below the road surface (3); the 90-degree elbow (4) and the water supply short pipe (5) are laid below the road surface (3); and the gate valve (2) and the exhaust valve (1) are arranged on the road surface (3). The device is suitable for the situation that the water supply pipeline is shallow in soil covering and cannot meet the requirements of related exhaust well atlas.

This invention discloses a method and system for feature extraction and intelligent identification of mine microseismic signals, belonging to the fields of signal processing and mine safety monitoring. The method involves acquiring, framing, and standardizing raw vibration signals through underground monitoring substations, and then inputting the data into a lightweight neural network deployed within the substations. This network includes a one-dimensional convolutional layer and an embedded squeeze-excitation attention module for adaptively enhancing effective microseismic signal features and suppressing background noise. The ratio of short-time average energy to long-time average energy triggers the neural network inference process, outputting the probability value of whether the signal belongs to rock fracture, artificial blasting, or mechanical noise. When the probability of a rock fracture signal exceeds a threshold, a valid microseismic event is confirmed and a timestamp is recorded. This invention achieves intelligent edge-end identification of microseismic signals, significantly reducing early warning delays, minimizing data transmission bandwidth usage, and improving identification accuracy and system reliability in complex underground environments.

The invention discloses a sand mold casting process suitable for an aluminum alloy shell of a high-power electric transmission device. The method comprises the following steps: designing a pouring system, a feeding system and a chilling block of a casting by utilizing three-dimensional modeling software according to the structural characteristics of an aluminum alloy shell of a high-power electric transmission device; chilling blocks are arranged on the inner surface and the outer surface of the aluminum alloy shell, and a dead head is arranged on the upper end face of the aluminum alloy shell; mAGMA software is used for conducting casting technology analogue simulation and optimization, the optimal casting technology scheme is determined as a sand mold gravity casting technology, and the sand mold gravity casting technology specifically comprises the steps of modeling and core making, core assembling, smelting, pouring, cleaning, machining of technological holes and technological blocks and repair welding of the technological holes. By the adoption of the process, the casting defects of the high-power electric transmission aluminum alloy shell are reduced, the casting quality is improved, and the produced casting meets the product design requirements through flaw detection, hydrostatic tests, bench tests and sports car tests and is excellent in quality.

The application discloses a kind of integrated insect egg floatation enrichment sampling devices, including the cup of bottom opening and detachable bottom closure, main cavity and filter device are equipped in cup, and main cavity is divided into stirring mixing zone, filter area and floatation enrichment area;Sample enrichment and observation window are extended outwards from the top of cup side wall portion;Cup is also provided with suction assembly and elastic deformation to balance pressure telescopic section.The application can complete mixing, filtration, floatation enrichment, exhaust bubble and observation in single device, avoid sample transfer multiple times, and the loss of target caused in transfer, effectively eliminate bubble interference and ensure that target floats after closely below observation window, through inclined posture, target is more easily floated to observation window part, significantly improve sampling efficiency and detection accuracy, and effectively avoid the loss caused by target sample transfer.

The invention discloses a soil conditioner taking coal-based solid waste as a raw material and a preparation method of the soil conditioner. The microbial soil conditioner is prepared from the following components in parts by weight: 40 parts of coal gangue matrix, 30 parts of fly ash matrix, 15 parts of sludge or other organic matter matrix, 10 parts of inorganic salt calcium chloride or calcium chloride dihydrate, 5 parts of sodium polyacrylate, 5 parts of plant straw powder and 5 parts of microbial agent. According to the soil conditioner provided by the invention, the materials are environment-friendly and low in cost, and a new direction is provided for resource utilization of coal-based solid wastes; the modifier has remarkable drought-resisting, water-retaining, water-saving and fertilizer-retaining effects, can release water when the soil environment is dry, solves the problem of water resource exhaustion, and develops a new technical path for the fields of soil improvement, resource utilization, mine treatment, desertification control and the like in northwest arid regions in China.