45results about How to "Reduce the number of pipes" patented technology

The invention discloses a central gas supply system for an intelligent CIT laboratory. Gas supply branch pipelines are in one-to-one correspondence to gas storage cylinders, an outlet of each gas storage cylinder is communicated with a main pipeline through the corresponding gas supply branch pipeline, a pressure reduction device, a gas supply solenoid valve and a gas pressure sensor are mounted on each gas supply branch pipeline, and each gas pressure sensor is located on one side, far away from the corresponding gas storage cylinder, of the corresponding pressure reduction device; one end of an instrument pipeline is communicated with the main pipeline, the other end of the instrument pipeline is used for connecting an external device, and instrument pipeline solenoid valves are mounted on the instrument pipeline; the gas pressure sensors, the pressure reduction devices, the gas supply solenoid valves and the instrument pipeline solenoid valves are electrically connected with a controller; the controller controls starting of corresponding pressure reduction devices according to demands of gas supply, controls the working state of the pressure reduction devices according to the detection value of the corresponding gas pressure sensor and controls work of the corresponding gas supply solenoid valves and the instrument pipeline solenoid valves. The gas supply efficiency can be improved, the arrangement of the gas supply system is simplified, and the degree of automation is improved.

The invention relates to a hoop rolling mill that adopts compound bowed roller hydro-cylinder. The upper and down working rollers of rolling machine are installed in the middle of the housing window through upper and down roller base. The hydro-cylinder is installed between upper and down roller base. The structure contains four compound bowed roller hydro-cylinders. Upper and lower ends of the hydro-cylinder identity are installed upper pressure board and down pressure board, which has piston rod and connecting stick. While working, the upper pressure board holds the upper working roller shaft base and the down pressure board holds the down working roller shaft base. The invention has the advantages of novel structure, small maintaining working and convenient to replace the roller.

The invention discloses an adsorption system for a sucked-crawler-type wall-climbing robot, and belongs to the technical field of wall-climbing robot adsorption systems. The adsorption system mainly comprises two gas distribution disc assemblies, suction cup assemblies, an electromagnetic reversing valve and a vacuum pump, wherein the two gas distribution disc assemblies are coaxially connected with a driving wheel and a driven wheel of the wall-climbing robot correspondingly; and when the wall-climbing robot walks, a gas distribution channel of the suction cup assembly at the driving wheel position and tightly attaching the wall surface is opened, the vacuum pump enables a suction cup cavity to generate negative pressure through the gas distribution channel so as to press the wall surfacetightly, the negative pressure in a suction cup cavity of the suction cup assembly at the driven wheel position and tightly attaching to the wall surface is released though the gas distribution channel. The adsorption system is simple in pneumatic circuit, few in pipelines, convenient to arrange, low in failure rate, simple in gas distribution control, reliable in adsorption and free in walking.

The invention discloses an electro-hydraulic proportional multi-hydraulic winch control system and a control strategy thereof. The system comprises three hydraulic winches, a load sensing pump (1), acontrol pump (2), an electric proportional overflow valve (3) and a system operational module. The three hydraulic winches are each provided with an electro-hydraulic proportional integrated controller. Each electro-hydraulic proportional integrated controller comprises two-way cartridge valves V1, V2, V3 and V4, an operational amplification module MK, a two-way working hydraulic motor MT, two-position four-way electromagnetic directional valves V5, V8, V11 and V14, three-position four-way electromagnetic proportional directional valves V6, V9, V10 and V13, an overflow valve V7, an overflow valve V12, a hydraulic pump pux and a hydraulic pump puy. The control strategy comprises three working conditions including rising, median stop and falling of the hydraulic winches. According to the electro-hydraulic proportional multi-hydraulic winch control system and the control strategy thereof, central pumping station multi-winch hydraulic control energy consumption is further reduced, and multi-winch high-precision collaborative operation is further achieved.

The invention discloses a universal pipeline hydraulic system and an excavator, and belongs to the field of hydraulic excavator equipment. The universal pipeline hydraulic system comprises a gear pump, a pilot valve, a one-way electric proportional pressure reducing valve, a pilot operated directional control valve in pipeline connection with the one-way electric proportional pressure reducing valve, a multifunctional tool and an electric control reversing valve, wherein the multifunctional tool and the electric control reversing valve are in pipeline connection with the pilot operated directional control valve and connected in series through a pipeline. The one-way electric proportional pressure reducing valve comprises a one-way electric proportional pressure reducing valve body I and a one-way electric proportional pressure reducing valve body II, and the one-way electric proportional pressure reducing valve body I and the one-way electric proportional pressure reducing valve body II are connected between the pilot valve and the pilot operated directional control valve in parallel. The pilot valve, the one-way electric proportional pressure reducing valve body I, the one-way electric proportional pressure reducing valve body II, the electric control reversing valve and the pilot operated directional control valve are provided with valve ports correspondingly so as to be connected with a hydraulic oil tank through pipelines. According to the universal pipeline hydraulic system, the number of hydraulic system pipelines specially arranged for meeting parameter requirements of different multifunctional tools is effectively reduced, the number of special control systems for matching with the multifunctional tools is reduced, and the repairing difficulty is greatly lowered.

The invention provides a propellant supplying system, a rocket engine and a rocket and relates to the technical field of gas propelling devices. The propellant supplying system comprises a fuel supplying system, an oxidizing agent supplying system and a control device. A pipeline of the fuel supplying system is provided with a first flow adjusting valve, and/or a pipeline of the oxidizing agent supplying system is provided with a second flow adjusting valve. The first flow adjusting valve and the second flow adjusting valve are connected with the control device. By means of the propellant supplying system, when a large flow adjusting ratio is achieved, the control device can control the flow of fuel through the first flow adjusting valve and control the flow of oxidizing agents through thesecond flow adjusting valve, the number of pipelines is greatly reduced, the overall structure can be reduced, and the overall weight is reduced; and in addition, due to the fact that the number of pipelines is reduced, the flowing path of fuel or oxidizing agents is shortened, and therefore the pressure losses of fuel and oxidizing agents in the flowing process are reduced.

The invention proposes a lubrication arrangement for a large diesel engine, in particular to the lubrication arrangement for the lubrication of cylinders (11) of a large diesel engine (10), comprisinga reservoir (2) for a lubricant, a lubrication device (3) for being mounted to the large diesel engine (10), and a supply line (4) connecting the reservoir (2) with an inlet (31) of the lubrication device (3) for delivering the lubricant from the reservoir (2) to the lubrication device (3), wherein the lubrication device (3) comprises a plurality of injection pumps (32) for delivering the lubricant into the cylinders (11), and wherein a feed pump (5) is provided, which is arranged to pressurize the lubricant in the supply line (4), so that the lubricant is supplied with an overpressure to theinlet (31) of the lubrication device (3). In addition, a combination of a lubrication arrangement and a large diesel engine is proposed.

The invention belongs to the technical field of rock mass mining-induced fissure permeability measurement, and discloses a borehole fissure permeability sectional pressure-regulating type observationmethod. A used device comprises a plugging test system, a propulsion system and a supply control system. The plugging test system comprises occluders, a communication tube and converters; water injection cavities are formed by occluders and a borehole; the converters are located at tails of a front occluder and a middle occluder; an inner ring, a spring, a cross silk sleeve, a water collecting tank and a water dividing hole are arranged inside each converter; a water through hole arranged in each inner ring communicates with the water colleting tank, and conveys an externally connected water source to the water injection cavities through each water dividing hole to detect the permeability of a borehole fissure. By adopting the device, a same water source can be utilized to realize the working of sealing and an observation process under respective pressures, the number of pipes in the borehole is reduced to one, the problem of the drill pipe winding is solved, the stability of the observation process is improved, and the observation water pressure can be adjusted according to needs; at the same time, a multi-stage measurement process can be achieved at a time, thereby improving theobservation efficiency.

The invention discloses a deposition system. The deposition system comprises a first cavity, a second cavity and a gas supply device shared by the first cavity and the second cavity. The gas supply device comprises a precursor source A, a precursor source B and a sweeping gas source C. The precursor source A is connected with the first cavity and the second cavity through a first cavity precursorA output pipeline and a second cavity precursor A output pipeline correspondingly. The precursor source B is connected with the first cavity and the second cavity through a first cavity precursor B output pipeline and a second cavity precursor B output pipeline correspondingly. The sweeping gas source C is connected with the first cavity through a first cavity precursor A sweeping pipeline and a first cavity precursor B sweeping pipeline and connected with the second cavity through a second cavity precursor A sweeping pipeline and a second cavity precursor B sweeping pipeline. The deposition system can increase the utilization rate of precursors, and the occupied space of the deposition system can be reduced. The invention further discloses a gas transmission method of the deposition system.

The invention provides a temperature control system and a temperature control method for multiple QCMs (quartz crystal microbalances), relates to the technical field of temperature control and aims tosolve the problem that a cooling system used for testing the QCMs at the same time is high in liquid nitrogen consumption and complex in pipeline mounting. The temperature control system comprises aconstant temperature mechanism, a heat transfer component and the quartz crystal microbalances, the constant temperature mechanism comprises a thermostat, a refrigerator and a heater, the refrigeratorcomprises a self-pressurizing liquid nitrogen tank communicated with the thermostat, the heat transfer component comprises a connecting member and multiple clamping members, the connecting member isconnected with the thermostat and the clamping members, the quartz crystal microbalances are mounted to the clamping members, and a heating member is mounted on each quartz crystal microbalance. In the constant temperature mechanism of the temperature control system, a self-pressurizing liquid nitrogen tank can lower temperature of all QCMs by only delivering liquid nitrogen to the constant temperature, so that the temperature control system is low in liquid nitrogen consumption, few in pipeline number and simpler in mounting process.

The invention provides a fresh air purifier and an air purification device and relates to the technical field of air purification. The fresh air purifier comprises a ventilation pipe which communicates the interior of a room and the exterior of the room and an air supply mechanism which is connected with the ventilation pipe; a purification mechanism is arranged in the ventilation pipe; the air supply mechanism is used for introducing air into the ventilation pipe and enabling the air to flow from the exterior of the room to the interior of the room; a gap is formed in the connecting part of the ventilation pipe and a wall body and is provided with an opening and closing valve; and the opening and closing valve is used for opening the gap when the air pressure in the room is larger than that outside the room. According to the fresh air purifier, without arrangement of a pipeline for exhausting air outdoors, the amount of pipelines of the fresh air purifier is reduced, the pipelines are not crossed and oppressed mutually, and the resistance applied to the air flowing in each pipeline is weakened, so that the energy consumption is reduced, and the technical problems in the prior art that the amount of the pipelines of the fresh air purifier is larger, the pipelines are liable in mutual crossing and oppressing to enable the larger resistance to be applied to the air flowing in each pipeline, and the energy consumption is increased are effectively improved.

The invention provides a cabin structure of a dual-fuel ship. A cabin is arranged at the tail part of the dual-fuel ship, a cargo compartment is arranged at the front side of the cabin, an engine driving device for driving a stern propeller to rotate is arranged in an induced cabin, and a closed LNG tank storage chamber is arranged between the cabin and the cargo compartment. The LNG tank storage chamber is arranged between the cabin and the cargo hold in the width direction of the ship body; the LNG tank storage chamber is a whole coherent independent cavity or is divided into a plurality of independent sub-cabins through partition plates, the sub-cabins are transversely and/or longitudinally arranged in the LNG tank storage chamber, and environment sensors are installed in the independent cavity or all the sub-cabins and connected with the control cabin; and the LNG tank body is fixed in the LNG tank storage chamber through the damping base. The LNG tank storage chamber is formed between the cabin and the cargo bin, the occupied space of the LNG tank can be reduced, the space utilization rate of a ship is increased, meanwhile, the LNG tank is arranged near the cabin, and the number of pipelines of a power system can be reduced.

The invention provides a water current control module for automatic integrated circulating water breeding. The water current control module comprises a box body, wherein the box body comprises a box body cover plate located at the top of the box body, physical filtering module mounting grooves, a first-stage biologic module mounting groove, a second-stage biologic module mounting groove, a gas exchange module mounting groove, a disinfection module mounting groove and a control module mounting groove are formed in the box body cover plate, the depth of the second-stage biologic module mountinggroove is greater than that of the first-stage biologic module mounting groove, an electric power equipment placing region providing a power supply is formed in the box body cover plate, and a blowerfor aeration is arranged at the electric power equipment placing region. The water current control module for an automatic integrated circulating water breeding system can be in seamless connection with modularized circulating water breeding equipment, so that the modularized circulating water breeding equipment can timely response to changes of water currents, and automatic control of the circulating water breeding system can be realized.

The invention discloses a tandem type external heat dissipation lamp. The tandem type external heat dissipation lamp comprises a lamp body part and an external heat dissipation part. The lamp body part is arranged in an enclosed space, and the external heat dissipation part is arranged outside the enclosed space; the lamp body part comprises at least two lamps, and the external heat dissipation part and the lamps are sequentially connected in series through a liquid cooling pipe; the liquid cooling pipeline is arranged in the lamp, and the external heat dissipation part comprises a liquid storage tank, a fluid pump and a heat dissipation part; and the fluid pump is used for driving the cooling liquid to flow between the external heat dissipation part and the lamp to form a serial circulating cooling water path. The lamp body part and the heat dissipation part are completely separated so that the mounting position of the heat dissipation part can be flexibly switched. For some places with strict noise requirements, such as music halls, studios and recording studios, the noise generated by heat dissipation can be completely transferred out of a working area so that the effects of performance, recording, reception and the like are ensured; and the tandem mode is simple in waterway, small in pipeline number, low in manufacturing cost and small in pipeline connection position.