41results about "Pipeline systems" patented technology

A method for predicting corrosion in a pipeline wherein the pipeline is subject to corrosion by the steps of obtaining data of parameters associated with the pipeline, comparing the data against previously generated data of parameters associated with the pipeline, and calculating, based on differences between the data with the previously generated data the probability of corrosion in the pipeline. The calculation can be performed using a variety of algorithms and modeling methods.

A fluid flow rate control method is provided that uses a flow rate range variable type pressure type flow rate control device provided with at least two or more parallel fluid passages disposed between the downstream side of a control valve of the control device and a fluid supply pipe passage, and orifices having different fluid flow rate characteristics are respectively interposed in parallel fluid passages to pass fluid in a first flow rate region through one orifice for flow rate control, and to pass fluid in a second flow rate region through at least another orifice for flow rate control. Flow rate characteristics of the respective orifices are selected so that a maximum controllable flow rate of fluid in the first flow rate region at low flow rate is smaller than 10% of a maximum controllable flow rate in the second flow rate region at high flow rate.

A water treatment system is provided including a disinfection system, a filter and a turbine generator. A manual pump is positioned downstream of the filter to create negative pressure to draw water through the filter. The manual pump also creates positive pressure to dispense treated water from the outlet of the system. The movement of the water through the system powers the turbine generator. The power generated can be used to monitor a characteristic of the water treatment system.

The invention discloses a natural gas pressure regulator station system. The natural gas pressure regulator station system is characterized by comprising an inlet insulation and fire alarm cut-off unit, a cyclone separation unit, a filter separation unit, a measuring unit, a pressure regulating unit and an outlet unit, which are sequentially connected together. A pressure regulator station is far away from a gas user, a front module of the natural gas pressure regulator station system is arranged in front of the gas user, the front module comprises a front measuring unit, a front fine filter unit and a front insulation and fire alarm cut-off unit. The natural gas pressure regulator station system has advantages that the investment and operation cost can be reduced, and the stability and safety for supplying the natural gas can be improved; a complete auxiliary facility is also provided on the basis of a heating unit and a front unit for the gas consumption characteristics and upstream gas source parameters of the gas user, so that the safety and stability of the pressure regulator station system in operation can be guaranteed, and the requirements of the gas user on high natural gas parameter accuracy and high response speed can be met.

The invention relates to a cutting method for a mixed-oil section in refined oil product batch transportation. The method comprises the following steps: calculating the concentration distribution of mixed oil at a terminal station; calculating a mixed-oil length ratio corresponding to the concentration of a front oil product in the mixed-oil section; calculating allowable mixing concentrations of the front oil product and a rear oil product in the mixed-oil section; calculating a first maximum volume of the rear oil product allowed to be mixed into a front oil product tank and a second maximum volume of the front oil product allowed to be mixed into a rear oil product tank respectively; calculating a first concentration threshold value of the front oil product allowed to enter the front oil product tank and a second concentration threshold value of the front oil product allowed to enter the rear oil product tank; judging whether the first concentration threshold value is less than the second concentration threshold value or not, if yes, carrying out the next step, if not, cutting the mixed-oil section into three sections; and calculating an optimal cutting concentration, and correspondingly cutting the mixed-oil section into two sections. According to the method, by monitoring and calculating the concentrations of the mixed-oil section and the real-time states of the oil tanks, the zero-mixed-oil cutting of the mixed-oil section, which meets cutting conditions, is realized, and the operation cost is effectively reduced.

A measurement-while-drilling servo-actuator for use in mud-pulse telemetry, which determines linear position of a poppet valve therein without counting revolutions of a stepper motor which positions said poppet valve. A sensor senses a magnetic field intensity value, or an inductance value, which is proportional to the position of the poppet valve relative to the sensor. A look-up table of reference outputs corresponding to known position of the poppet valve is used to determine the position of the poppet valve. A method of determining a position of a poppet valve in a mud pulser is further disclosed.

The invention discloses a pipeline gas leakage detecting device which comprises an outer casing. A controller is arranged inside the casing, a support is arranged at the upper end of the casing, a plurality of pressure measurement devices are installed in the support, and all pressure measurement device are connected with an indicating device. The pressure measurement devices are arranged on a pressure transmitter and a temperature transmitter on a portion to be detected in a connecting mode, and the controller is electrically connected with the pressure measurement devices and the indicating device. Further, each pressure measurement device comprises a connecting tube which is arranged on a pressure gage in the support in a communicated mode, the pressure gage corresponds to the connecting tube one by one, and the pressure gage is electrically connected with the controller. A display device comprises a plurality of display screens which are electrically connected with the controller. The pipeline gas leakage detecting device can achieve simultaneous measurement on multiple channels, saves time and labor and provides work efficiency. The pipeline gas leakage detecting device is simple in structure, convenient to use, high in detection efficiency, and convenient to popularize and apply.

A portable fuel tank includes a recess formed in a top wall that accommodates a fuel/water separator canister. The canister includes an inlet in fluid communication with liquid fuel in the enclosure and an outlet in fluid communication with a motor. The canister retains water separated from the fuel. A fuel intake tube is disposed within the tank and a fuel inlet conduit is disposed externally of the tank. The fuel inlet conduit has a first end in fluid communication with the fuel intake tube and a second end in fluid communication with an inlet of the canister. A manifold includes a first branch providing fluid communication between the fuel inlet conduit and the canister inlet and a second branch providing fluid communication between the canister outlet and a fuel outlet conduit that supplies water-free fuel to a motor.

The invention discloses a floor heating pipeline liquid leak detection device which comprises an insulating detection module. One end of the insulating detection module is connected with a position detection module which is tightly attached to a floor heating pipeline for arrangement, and the other end of the insulating detection module is connected with a control module. One output end of the control module is connected with an alarm module, and the other output end of the control module is connected with a liquid inlet cut-off module arranged at the water inlet end of the pipeline. The position detection module comprises a first conducting tow, a second conducting tow and a first partition layer used for separating the first conducting tow from the second conducting tow. The first conducting tow and the second conducting tow are insulated when being dried and can achieve breakover when being immersed in water. The control module processes two sets of output impedances, so that the leak position and leak amount of the pipeline are obtained. According to the floor heating pipeline liquid leak detection device, the leak position and leak amount of the pipeline can be detected by processing the resistance values of the immersed first conducting tow and second conducting tow, the sensitivity is high, the design is reasonable, the structure is simple and operation is easy.

The present application provides a wet gas compression system for a wet gas flow having a number of liquid droplets therein. The wet gas compression system may include a pipe, a compressor in communication with the pipe, and a thermoacoustic resonator in communication with the pipe so as to break up the liquid droplets in the wet gas flow.

The invention provides a multiphase flow mixed transportation device. The multiphase flow mixed transportation device comprises a first tank body, a second tank body and a reversing mechanism. The reversing mechanism drives liquid in the first tank body and liquid in the second tank body to circulate in a reciprocating manner, so that the first tank body and the second tank body alternately form a vacuum suction cavity and/or a compression discharge cavity, and continuous mixed conveying to the liquid or gas or gas-liquid mixtures is achieved. The reversing mechanism comprises a power pump, a pipeline and a pneumatic valve. The pneumatic valve is arranged on the pipeline and controls the flowing direction of liquid in the pipeline. The pneumatic valve comprises a pneumatic actuator, a throttling valve and a speed regulating valve. The speed regulating valve controls the operation speed of the pneumatic actuator so as to control the opening or closing time of the throttling valve. According to the multiphase flow mixed transportation device, liquid impact in the reversing process can be effectively reduced or eliminated, vibration and noise in the reversing process are reduced, and the safety and reliability of equipment can be effectively improved.

The invention relates to a novel pipeline blockage detection device. The novel pipeline blockage detection device comprises a master controller and further comprises a plurality of pressure collection mechanisms evenly arranged in the length direction of a pipeline. Each pressure collection mechanism comprises a pressure sensor arranged on the inner wall of the pipeline, a slave controller connected with the output end of the pressure sensor and a slave wireless communication module connected with the communication end of the slave controller. The output end of the master controller is connected with an LCD. The communication end of the master controller is connected with a master wireless communication module. The master wireless communication module and the slave wireless communication modules are in wireless communication. A waterproof camera is arranged at the position, on each pressure sensor, of the inner wall of the pipeline, and a transparent protection cover is further arranged on the outer portion of each waterproof camera. The output end of each slave controller is connected with a storer. By means of the structure, the novel pipeline blockage detection device can detect whether the pipeline is blocked or not faster and more effectively, and therefore the current detection needs are greatly met.

A sleeve valve including a permanent end position and comprising an inner sleeve concentrically disposed within an outer sleeve comprising at least one radially facing outer opening and an operating range defined by an open position in which the inner sleeve does not block the outer opening, and a closed position in which the inner sleeve blocks the outer opening. The inner sleeve is axially displaceable or rotatable within the outer sleeve to provide an operating range in the longitudinal direction or an operating range in the form of an angle. At least one plastically deformable locking area of one the inner or outer sleeve is adapted for being radially deformed into a locking groove of the other sleeve when the inner sleeve is moved outside of the operating range.

The invention discloses a novel optical cable sensing system for pipeline leakage detection and belongs to the technical field of monitoring. The novel optical cable sensing system is mainly used forautomatic real-time detection on leakage of liquid or gas in a pipeline. A sensing ring surrounds the periphery of the pipeline and is connected with an elastic plate below the pipeline through a connecting belt; and a sensing optical cable is paved on the elastic plate. An impact vibration signal generated when liquid or gas leaks is detected by the sensing ring and transmitted to the sensing optical cable on the elastic plate; the vibration signal modulates a laser signal in the sensing optical cable, the laser signal is sent back to a signal analysis and recognition computer system in a monitoring room through the optical cable, the specific position and the signal type of leakage are worked out through the demodulation algorithm, a monitoring staff is helped to precisely judge the failure in real time and carry out corresponding timely emergency maintenance. The novel optical cable sensing system can realize full-automatic real-time detection on leakage of the long-distance pipeline, can effectively replace traditional manual inspection tour and is simple and convenient in operation, high in economic benefit and wide in application prospect.

The invention relates to an automation control device for the fluid flow speed. The problems are effectively solved that in an existing fluid flow speed control process, manual adjustment is needed, the adjustment process is inaccurate, in the flow speed control process, real-time autonomous control cannot be achieved, and a valve is blocked by impurities. According to the technical scheme, the device comprises a supporting rack, a middle water conveying pipe and an upper water conveying pipe. A propeller blade located on the right side of an upper port of the middle water conveying pipe is rotatably connected into the upper water conveying pipe, a crank driving gear is fixedly and coaxially connected to the propeller blade, a crank driven gear rotatably connected with the supporting rackis meshed with the side of the crank driving gear and coaxially and fixedly connected with a crank driving belt wheel located on the left side of the upper water conveying pipe, and the crank drivingbelt wheel is connected with the crank driven belt wheel coaxially and rotatably connected to the left end of the upper water conveying pipe. The automation control device for the fluid flow speed issimple in structure and high in practicability.

The invention provides a BOG treatment system and method of LNG storage tanks applicable to different design pressures. The system is provided with the low pressure LNG storage tank and the high pressure LNG storage tank; the low pressure LNG storage tank and the high pressure LNG storage tank are converged into a BOG header pipe, are connected with a BOG buffering tank, and then are connected toa BOG compressor and a backflow air blower; a check valve is installed on a BOG pipeline of the low pressure LNG storage tank; an opening degree control valve is installed on a BOG pipeline of the high pressure LNG storage tank; the BOG header pipe is further connected with a branch circuit heading for a torque system; and a branch pressure control valve is installed on the branch circuit. By monitoring the pressure of each pipeline and controlling the BOG compressor, the system, heading for a torque, of a branch pipe, a safety valve of the low pressure LNG storage tank and a safety valve of the high pressure LNG storage tank to be opened, the equipment safety of the whole system is guaranteed.

A re-closable valve (1, 100, 700, 800) for use in sterile fluid transfer has a body (5) with open entry and exit sides (2, 3) and a passageway (4) for fluid therebetween. The entry side is connectable to an opening of a separate vessel and the exit side is connectable to downstream processing. The entry side includes a first rupturable seal (5b, 500) blocking the opening of the entry side. A piston (9) is connected to an actuator (7) via a cam mechanism (8, 85, 10) which moves the piston (9) axially in the passageway (4) and to the first seal (5b, 500). On movement of the piston (9) during a first actuation, the first seal (5b, 500) is torn free from the entry side to open the valve for fluid transfer. A sharp rim (15) surrounds the opening of the entry side and a curved surface area (193) encircles the piston exterior proximal the entry side. The valve (1, 100, 700, 800) can be re-closed by moving the piston (9) during a subsequent actuation thus engaging the sharp rim (15) with the curved surface area (193) which plastically deform to from a second seal. Arrangements are included to enable the valve (1, 100, 700, 800) to be multiply re-opened and re-closed, if desired.

The invention relates to a hydrogen production system for electric peak regulation. The hydrogen production system comprises a hydrogen production device, a conveying pipeline and a hydrogen storage device which are sequentially connected; a conveying pump is arranged in the conveying pipeline, the electric energy input end of the hydrogen production device is connected to time-varying power generation equipment, and the time-varying power generation equipment comprises photovoltaic power generation equipment and wind power generation equipment. The conveying pipeline comprises a hydrogen conveying main pipe and a plurality of hydrogen conveying branch pipes; the conveying pump is arranged in the hydrogen conveying main pipe, and first electromagnetic valves are arranged in the hydrogen conveying branch pipes; sensors used for monitoring the capacity in the hydrogen storage device are arranged in the hydrogen storage device; the system further comprises a controller and a plurality of first relays, wherein the sensors are connected to the signal input ends of the controller respectively; coils of the first relays are connected to the signal output ends of the controller respectively, and contacts of the first relays are connected to the first electromagnetic valves respectively. Compared with the prior art, the system has the advantages of improving efficiency and safety and the like.

A single push button multi-function water output switching structure, comprising: an outer shell, and a water output panel, a seat body, and an inner sleeve disposed in the outer shell. Wherein, the seat body is provided with three through hole channels, while inside the three through hole channels are each provided with a set of water output guiding sleeve and a core plug. The water output panel is provided with three sets of independent water output channels, and a water output end surface of the water output guiding sleeve is provided with water output hole corresponding to and in communication with the water output channels. An inner sleeve is sleeved in a cavity in rear portion of the seat body. The switching structure is simple in structure, optimal in design, and is capable of achieving various different water outputs through pressing a single push button.

The invention discloses a product oil loading metering adjusting device. One end of a process pipeline is connected to a first flange, and the other end of the process pipeline is connected to one end of a flow metering adjusting pipe via a first process gate valve; the other end of the flow metering adjusting pipe is connected to one end of a loading crane pipe through a flange; the other end of the loading crane pipe is connected to the top of a product oil vehicle top; the flow metering adjusting pipe is connected to a flow controller through a cable; a filtering air removing device, a second process gate valve, an integrated temperature transmitter, an intelligent pressure transmitter, a flow meter, a flow adjusting valve, and a triple offset butterfly valve are successively connected to the flow metering adjusting pipe in series; the flow meter, the intelligent pressure transmitter, the integrated temperature transmitter, and the flow adjusting valve are connected to the flow controller through instrument cables; and the flow controller is connected to an SCADA system. The beneficial effects of the invention are that the metering device and the adjusting device are integrated, and the metering and adjusting precision is improved.

The invention discloses a fine grinding stainless high temperature and high pressure resistance hollow floating ball used for a pressure pipeline component. After being precisely grinded, the circular accuracy of the ball can reach 0.2 percent of the diameter of the floating ball. The hollow floating ball has the advantages that the accuracy of the floating ball is high, the sealing performance is good, and any spherical face can be taken as the sealing surface; formulary liquid is filled inside the floating ball, so that the floating ball is ensured to resist the high temperature and high pressure, the centralized abrasion can not be caused during the operating period, and the service life is long.

A hydraulic system is provided, the hydraulic system including a hydraulic load defining a first chamber and a second chamber. Additionally, the hydraulic system includes a pressure source, a fluid storage vessel, a load sense line, and a spool valve. The spool valve fluidly connects the fluid storage vessel to one of the first or second chambers and fluidly connects the pressure source to the other of the first or second chambers. A bypass line is also provided defining a flow path between the hydraulic load and the fluid storage vessel that bypasses the spool valve. Fluid flow may encounter less resistance through the bypass line, such that the hydraulic system may run more efficiently and with a reduced risk for cavitation in the hydraulic load.

The invention relates to a small-scale movable distributed energy system. The system includes a car unloading device and a micro-combustion engine. A filtering device, a metering device, a primary pressure regulating device, The thermal device, the secondary pressure regulating device and the buffer device, the micro-combustion engine generates electric energy and heat energy, and the electric energy is connected to the regional power grid for output to the electrical equipment, part of the heat energy is output to the heat exchange device for heat exchange with incoming air, and the other part is used for Heating or domestic hot water. The invention realizes cascaded utilization of energy, natural gas power generation increases energy quality, waste heat utilization improves overall energy utilization efficiency, achieves the purpose of efficient energy utilization, and greatly reduces carbon dioxide emissions and dependence on municipal power grids. Simple, high degree of automation, less maintenance, safe and reliable, strong system adaptability.

The invention provides a natural gas pressure energy utilization system which is low in equipment manufacturing cost, high in energy conversion efficiency and suitable for natural gas pressure energy utilization, and relates to the technical field of pressure energy utilization. The natural gas pressure energy utilization system comprises a first pressure energy conversion unit, a second pressure energy conversion unit, a hydraulic transmission device and a power generator, wherein the first pressure energy conversion unit and the second pressure energy conversion unit each comprise a pressure conversion assembly; the pressure conversion assembly comprises an air inlet tube, an exhaust tube and at least one energy conversion device; the energy conversion device comprises a shell and a movable sealing structure, the movable sealing structure divides an inner cavity of the shell into a first medium cavity and a second medium cavity, an air inlet control valve is arranged on the air inlet tube, an exhaust control valve is arranged on the exhaust tube, and one end of the air inlet tube and one end of the exhaust tube are both communicated with the second medium cavity. The system is simple in structure, low in manufacturing cost, convenient to maintain and high in power generation benefit.