25 results about "Gas pipeline" patented technology

The invention discloses a coal seam anti-reflection method for circular damage by using cold shock of liquid nitrogen and phase change gas. First, a layer penetrating drill hole is drilled in a roadway to a coal seam through a rock layer; in the layer penetrating drill hole, the coal seam is cut to form multiple cracks perpendicular to the layer penetrating drill hole; a liquid nitrogen injectingpipe and an exhaust pipe extend into the layer penetrating drill hole; and the exhaust pipe is connected with two gas pipelines separately provided with a safety valve and a spherical valve. The spherical valve performs the on-off control over the emission of nitrogen when the liquid nitrogen is injected in the layer penetrating drill hole; after the spherical valve is closed, a threshold of the safety valve is set, so that the safety valve controls the pressure in the layer penetrating drill hole; and after the air pressure in the layer penetrating drill hole exceeds the threshold each time,the safety valve is opened to discharge internal nitrogen for pressure relief, and the safety valve is automatically closed after the pressure relief. The method can guarantee that the liquid nitrogenis quickly and continuously injected in the layer penetrating drill hole, and meanwhile, cracks of coal masses are caused by using cold shock of the liquid nitrogen, the expansion pressure of the phase change gas and the frost heaving pressure of water in the cracks to effectively guarantee the anti-reflection effect.

The invention discloses an air and gas synchronous controller. The air and gas synchronous controller comprises a shell, an air inlet end, a push rod and an elastic piece, wherein the shell is hollow and is divided into an air inlet cavity and a movable cavity by a membrane, the air inlet end is located at one end of the shell, a gas pipeline is communicated with the air inlet cavity through the air inlet end, the push rod is located in the movable cavity, one end of the push rod is connected with the membrane, the other end of the push rod is connected with an opening and closing piece at an air outlet, and the elastic piece is located in the movable cavity and abuts against the membrane. Compared with an air and gas synchronous controller in the prior art, the air and gas synchronous controller has the advantages that the structure is simple, and cost is lower. Compared with other products in the market on the aspects of functions and effects, the air and gas synchronous controller has the advantages that the air outlet volume can be adjusted in real time, fuel gas can be fully burnt, and continuous manual control over the air outlet volume is not needed.

An ammonia low-nitrogen multi-stage rotational-flow burner comprises an outer air cylinder and an inner air cylinder, a direct-flow air channel is formed between the inner wall of the outer air cylinder and the outer wall of the inner air cylinder, a plurality of main gas pipelines are evenly distributed on the outer wall of the inner air cylinder in the circumferential direction, the inner air cylinder is provided with a rotational-flow air channel, a rotational-flow air channel, a central air channel and a central gas injection channel which are coaxial from outside to inside, and fuel gas is divided into three parts through the central gas injection channel, the rotational-flow air channel and the main gas pipelines. The central air channel, the direct-flow air channel and the rotational-flow air channel divide air into three parts, classification of fuel and air is carried out in the inner air cylinder, in addition, the burner can further comprise a flame segmentation ring arranged at the front end, flame can be segmented, the contact area of gas and air is increased, combustion is more sufficient, the fuel and the air are mixed in a layered mode, and accordingly the gas and air mixing effect can be enhanced. Heat radiation transmission between a component and the surrounding high-temperature environment is slowed down, and the service life of the component is prolonged.

The invention discloses a liquid feed distributor for a lamella heat exchanger, comprising a feed access pipe and a feed distribution pipe. The liquid feed distributor is independently arranged outside a gas pipeline, and the feed distribution pipe of the liquid feed distributor is provided with a plurality of rows of distribution holes along the radial direction; one end of the feed access pipe of the liquid feed distributor is communicated with the pipe wall at the outer end of the feed distribution pipe; the feed distributor is connected with a plate bundle of the lamella heat exchanger through the feed distribution pipe; a part of the plurality of distribution holes of the feed distribution pipe along the radial direction are positioned in the plate bundle; both the outer end of the feed distribution pipe and the feed access pipe are positioned outside the plate bundle; and the outer end of the feed distribution pipe is provided with an end flange. The invention can solve the problem of distribution dead zones in the center of an original distributor structure and reduce the overhaul workload and the overhaul difficulty of the distributor on the premise of realizing uniform distribution.

The invention discloses a device applicable to a pipe washing work of a deep sea oil and gas pipeline. The device comprises a water flushing system, a chemical agent filling system which is connected to the water flushing system, an assisting system which assists the water flushing system to clean the pipeline, and a data acquiring and transmitting system for acquiring and transmitting data of a pipe cleaning device, wherein the water flushing system comprises at least free water flushing and ROV supported water flushing; the free water flushing is that the inner and outer water pressure difference of a seawater pipeline is treated as power to flush water for cleaning the pipe; the ROV supported water flushing is that hydraulic power supplied by a centrifugal pump is used for flushing water to clean the pipe; the chemical agent filling system comprises at least an underwater chemical agent tank, a chemical agent discharging assembly, a chemical agent filling assembly, a chemical agent filtering and adjusting assembly and an underwater rapid chemical agent supplementing joint; and the chemical agent is filled with different concentration and mixing ratio through the chemical agent filling and adjusting assembly based on the flow rate change of a main pipeline. The device overcomes deep water pressure and resistance along the way and reduces the shortages of a large amount of aboveground devices for normal pipe cleaning work, large occupied space, and high input cost; and the deep water pipeline cleaning work efficiency is improved.

The invention provides a removal method of outdoor hanging steps. The removal method comprises the steps of arranging a protective fence, and removing a step decorative surface of the top surface of a to-be-removed step; cutting off a cable and water, electricity and gas pipelines; reinforcing both ends of the to-be-removed step by adopting a steel pipe scaffold, and jacking the bottom of the to-be-removed step by adopting a jacking and a square timber on the top of the steel pipe scaffold; fixing a plurality of steel wire ropes for hoisting to the to-be-removed step, and connecting one end of each steel wire rope with hoisting equipment; cutting the both ends of the to-be-removed step by adopting cutting equipment, wherein a component on the upper part of the steel pipe scaffold is not broken; hoisting the to-be-removed step through hoisting equipment, and then placing the to-be-removed step on the ground; removing the to-be-removed step on the steel pipe scaffold in a crushing mode through a crusher; removing the steel pipe scaffold, and cleaning engineering garbage; and arranging a spraying machine and a watering cart so as to control flying dust of the construction phenomenon during removal. The removal method has the advantages of no damage to a main building, simplicity in operation, convenience in construction, high working efficiency and high safety.

The invention provides cecropin antibacterial peptide fermentation sterilization equipment and a sterilization method thereof. The equipment includes a sterilization tank and a stirrer mounted in the sterilization tank, three steam pipelines are disposed at the bottom of the sterilization tank, and one of the steam pipelines is connected to an air pipeline. The invention also includes a sterilization method. According to the invention, one steam pipeline is provided with the air pipeline so that air can enter at the same time, steam and air are fed simultaneously, air makes the steam disperse rapidly, a feed liquid can be heated evenly, sound and vibration can be reduced to avoid device damage, and also influence to the work environment is reduced. According to the invention, when the feed liquid is heated to 110DEG C, stirring can be stopped, and electric energy is saved.

The invention belongs to the technical field of atomic layer deposition and discloses gravity-driven spatial resolution powder atomic layer deposition equipment, a gravity-driven spatial resolution powder atomic layer deposition method and application. The powder atomic layer deposition equipment is provided with heatable main chambers; movable sealing structures are arranged between the multiplestages of heatable main chambers, and the heatable main chambers are sealed through rubber-metal/rubber; heatable gas pipelines are fixed to the two ends of each stage of heatable main chamber, and powder filters are arranged at the joints of the heatable gas pipelines; one end of each stage of heatable main chamber is connected with a precursor and carrier gas through the corresponding heatable gas pipeline, and opening and closing are controlled via an electromagnetic valve; the other end of each stage of heatable main chamber is connected with a vacuum pump through the corresponding heatable gas pipeline, opening and closing are controlled via an electromagnetic or pneumatic valve, and residual gas analyzers or vacuum gauges can be arranged at the two ends of the valve; and the whole equipment can be provided with a vibrator. According to the gravity-driven spatial resolution powder atomic layer deposition equipment, the gravity-driven spatial resolution powder atomic layer deposition method and application, a chamber body is designed in a continuous growth mode, the coating efficiency is obviously improved, and the powder coating cost is reduced.

The invention relates to a conjoined determining device for respiration intensity of agricultural products and a use method. The device is composed of a gas filtration container, a vapor filtration container, a fruit container, a gas absorbing bottle, a flow meter, a vacuum pump, a solenoid valve, a time relay, a tee joint pipeline, a distributor pipeline and a gas pipeline, wherein the gas absorbing bottle and the solenoid valve are in parallel connection with the pipeline, and meanwhile, the fruit container, the gas absorbing bottle, the flow meter and the solenoid valve are used as a combined unit, are combined in multiple sets and are in parallel connection with the pipeline of the device, so that the conjoined determining device for respiration intensity can be formed. In a use process, the solenoid valve is controlled by the time relay, so that the automatic absorption for gas in the pipeline can be realized. The device can simultaneously detect a plurality of samples; the detection result is accurate; and the device can be widely used for detecting and analyzing respiration intensity indexes after the fruits of various agricultural products are harvested.

The invention relates to the technical field of flow adjusting devices, and particularly relates to a gas flow adjusting device which comprises a cover body and a rotating plate. The rotating plate isarranged in the cover body and rotates around a radial direction of the cover body, and the rotating plate is provided with a first working position where a plate surface extending direction is superposed with a radial direction of the cover body and an edge is attached to an inner wall of the cover body and a second working position where the plate surface extending direction is perpendicular tothe radial direction of the cover body. Two areas are arranged on the rotating plate, a plurality of vent holes are arranged in each area, and each vent hole in each area is connected with a gas pipeline through a flexible body; and two flow adjusting devices are arranged on the rotating plate and used for adjusting an opening degree of an outlet end of the vent hole in each area, and an adjusting action is performed when the rotating plate is located at the second working position and is achieved through a tool penetrating through the cover body. Flow adjustment of air and ozone can be achieved, disassembly is not needed again after installation, and equipment cost and personnel cost are effectively reduced.

The invention relates to a suction power unit for an industrial vacuum sweeper. The suction power unit comprises a front pump (2) and a main pump (3) serially connected with each other through a main pipeline (1). A branch pipeline (4) is connected to the main pipeline between the front pump and the main pump. A pneumatic one-way valve (5) is mounted in the branch pipeline, and the other end of the branch pipeline is connected with an air outlet end (1-2) of the main pipeline. The proportion of the sectional area of the pneumatic one-way valve to that of the branch pipeline is 45%-65%. The suction power unit has the advantages that the one-way valve and the related branch pipeline are added between the front pump and the main pump; when the main pump fails, air cannot flow from the front pump to the main pump and the pressure of the branch pipeline increases; after opening pressure of the one-way valve is overcome, the one-way valve is opened; the air is exhausted directly from an air outlet end of the main pipeline through the one-way valve; dust suction can still be maintained while only the front pump operates; and accordingly dust sucking can be protected from being affected by fault shutdown of the main pump.

The invention belongs to the field of automobile part machining, and discloses an R-axis optimized ultrasonic welding device. The R-axis optimized ultrasonic welding device comprises a rack, a rotating shaft movably connected to the rack, a quick-change disc female head connected to the bottom of the rotating shaft and a quick-change disc male head connected with the quick-change disc female head, and an ultrasonic welding head is detachably connected to the quick-change disc male head; the device further comprises a first gas path pipeline, a second gas path pipeline and a refrigeration gas pipeline, and an absolute value servo motor is fixed to the rack and is in transmission connection with the rotating shaft; a channel is formed in the rotating shaft, and the first air channel pipeline and the second air channel pipeline penetrate through the channel to be connected to the quick-change disc female head and used for controlling opening and closing of a pneumatic lock between the quick-change disc female head and the quick-change disc male head; and the refrigeration gas pipeline penetrates through the channel and extends to the position of the ultrasonic welding head to be used for cooling the ultrasonic welding head. According to the device, the absolute value servo motor is adopted, and a cable penetrates through the rotating shaft, so that the motor does not need to rotate by 360 degrees to find an original point every time the motor is started, only the motor needs to rotate within the maximum range of 180 degrees, meanwhile, an auxiliary cable is hidden in the rotating shaft, and when the motor rotates by 180 degrees, the pulling thread of the cable is short, and the cables adopt hoses, so that the problem of pulling apart is avoided.

The invention belongs to the technical field of isotope separation, and particularly relates to a unit bromine trifluoride treatment material taking device. The device comprises a vacuum pump a, a vacuum pump b, a freezer a, a freezer b, a container a, a container b, a container c, a container d, a container e, a container f, a container g, a container h, a container i, a cryogenic box a, a cryogenic box b, a cryogenic box c, a cryogenic box d, a cryogenic box e, a cryogenic box f, a cryogenic box g, a cryogenic box h, a cryogenic box i, a material receiving pipeline, an outlet pipeline, an excavation pipeline and a tail gas pipeline. According to the device, continuity of the treatment process and conversion and control of the working conditions of the treatment process can be realized, and a reliable safety interlocking device is arranged to ensure unit safety in the treatment process.

The invention discloses a leak detection device for a semiconductor special gas conveying pipeline, which comprises an outside-pipe clamping mechanism, a sealing cover and a gas detection mechanism, and is characterized in that the gas detection mechanism comprises a flow guide pipe and a balance pipe which are arranged on the outside-pipe clamping mechanism, and a gas detection bottle which is in threaded connection with the outside-pipe clamping mechanism; one end of the flow guide pipe extends to the inner side of the outside-pipe clamping mechanism and is used for collecting leaked special gas, the other end of the flow guide pipe can extend to the inner side of the balance pipe and is used for discharging the collected special gas, and the gas detection bottle is used for visualizing the leaked gas discharged by the flow guide pipe; the device is clamped on the outer side of the gas pipeline and is sealed by the sealing cover, so that an area to be subjected to leak detection on the gas pipeline is sealed in the device, and when gas in the gas pipeline leaks, the leaked gas is sealed in the device and cannot further leak to the outside.

The invention relates to the technical field of gas pipelines, and discloses a gas pipeline tracing line connector device which comprises a box body, an opening is formed in the side wall of the box body, a conducting strip is arranged in the box body, limiting plates are arranged at the top and the bottom of the box body, a wire groove is defined by the limiting plates and the box body, one end of the wire groove points to the opening, and the other end of the wire groove points to the conducting strip. Compared with the prior art, the gas pipeline tracing line connector device is simple andreliable in structure and excellent in anti-corrosion effect.

The invention belongs to the technical field of nuclear power, and particularly discloses a hotspot backwash device applicable to instrument pipes of main pipelines of nuclear power stations. The hotspot backwash device comprises a hand trolley, a threading hose, a controller, a centrifugal pump and motor combination, a pressure transmitter, a pump water inlet stainless steel pipeline, a pump water outlet stainless steel pipeline, pump circulation stainless steel pipelines, a stainless steel pipeline, stainless steel instrument pipelines, stainless steel instrument pipe manual stop valves, a pump circulation stainless steel pipeline manual stop valve, pump water outlet port quick connectors, a pump water inlet port quick connector, a water fetching hose, a water outlet hose, a check valve,a tee, a water outlet hose quick connector, an instrument quick connector, a drain valve, a drain hose, a low-liquid-level float switch, a water tank manual stop valve, a water tank outlet port quickconnector and a water tank. The hotspot backwash device has the advantages that backwash can be simultaneously carried out on the four instrument pipes by the hotspot backwash device, and accordinglybackwash work can be efficiently accomplished by the hotspot backwash device.

The method of preventing decrease of quenching water flow rate in gasifying furnace includes adding flushing water to the technological gas pipeline in the gasifying furnace outlet for spraying and flushing and setting filter for filtering in the outlet of carbon black washing tower. The present invention also discloses the special apparatus adopting the said method. The present invention solves the difficult problem of insufficient quenching water flow rate in gasifying furnace to prolong the running period of gasifying furnace, and has the advantages of simple technological structure, easy operation, low processing cost, etc.

The invention provides ceramic membrane sewage treatment equipment and method based on domestication of active microorganisms. The equipment comprises a reaction tank which comprises a water inlet anda water outlet; a first membrane assembly, of which a ceramic membrane is communicated with a gas storage tank through a gas pipeline and is filled with microorganism culture gas in the gas storage tank, wherein a biological membrane layer is formed in an activated sludge environment, and the surface of the ceramic membrane of the first membrane assembly is covered with the biological membrane layer; and a second membrane assembly which is located at the downstream of the first membrane assembly, and the second membrane assembly is communicated with the water outlet through a water outlet pipeline. According to the invention, the problem of uncontrollable microbial population in the existing MBR technology is solved, and the problems of low water production rate and frequent replacement of the membrane assembly caused by easy pollution of suspended activated sludge to the membrane assembly in the existing MBR can be solved as the immobilized microorganisms are adopted to treat wastewater and have low sludge yield and good settling performance.