40results about How to "High working pressure" patented technology

The invention discloses a remote automatic control system of a fracturing pump skid used in an oil field. The system is used for remote automatic control of a well service pump skid and a truck-mounted skid used in the oil field; the remote automatic control system consists of a field control system which consists of Siemens S7-315 series PLCs which are taken as a core, a Siemens MP370 which is taken as a remote control human-machine interface, and Ethernet which is taken as a transmission media; the system can achieve remote control functions such as start, stop and emergency stop of an engine, gear shifting, braking, turning back to a neutral position and idle speed of a gearbox and the like, and the system can modify field running parameters in a remote manner, thus realizing bidirectional transmission between the pump skid and the human-machine interface (HMI); the Ethernet is taken for communication so that the pump skid can transmit the field data to a remote controller or a server at the speed of 100MB/S; an industrial exchanger is taken to connect the devices such as the PLC, the HMI and the like to achieve more group controls; the exchanger can convert the field data into the data formats such as a standard *.CSV format and the like, and directly transmit the data to the server for data processing.

An apparatus for recovering energy from an osmotic system, said apparatus comprising: (i) a feed stream (143,251); (ii) pressure means (140,150, 250, 254) to pressurise said feed stream; (iii) a manipulated osmosis unit (110,220,230); (iv) an energy recovery unit (120, 240, 260) in fluid connection with second solution side of the manipulated osmosis unit; (v) a reverse osmosis unit (130) receiving a feed from the energy recovery unit.

The invention relates to a bipolar plate sealing process for fuel cells. A loop of glue-spilling groove is processed on a fuel cell negative plate liquid coolant flow field periphery and outer contourrespectively; an conductive adhesive is coated on the surface of a smooth surface of a positive plate; the negative plate and the surface of the positive plate which is coated with the conducting resin are matched and placed in a spacing tool, the spacing tool is placed in a hot press for hot pressing and solidification, in order to complete sealing and connection. Compared with the prior art, the process has the advantage for avoiding glue spilling, processing technology is simple, cost is low, production in batch can be realized, and conditions are created for development and applications of fuel cells.

The invention discloses a working method of an igniter with a double air inlet eccentric double anode structure. The method specifically includes the following steps that during work, a certain amountof air or fuel is introduced through an air inlet a; meanwhile, firstly, a power supply supplies power to a short anode and a long anode at low voltage; at the lower voltage, dielectric barrier discharging happens between the short anode and an anode insulating positioning sleeve, between the anode insulating positioning sleeve and a grounded electrode, and between the long anode and the anode insulating positioning sleeve separately; the power supply supplies power to the long anode at higher voltage, under action of the higher voltage, arc discharging happens between the grounded electrodeand the long anode, and when the long anode is energized at the higher voltage, air is introduced into an air channel in the long anode. By means of the working method of the igniter with the double air inlet eccentric double anode structure, the advantages of nonequilibrium plasma of a wide lean burn limit and high reaction activity and the advantages of thermal equilibrium plasma of high workingair pressure and the like are combined, so that the purpose of achieving high-energy stable ignition in a wide fuel air ratio range is achieved.

The invention relates to equipment for performing modified treatment on medium and large particle seeds by using cold plasma. The equipment comprises a charging barrel, a discharging barrel, and a vacuum cavity connected with the charging barrel and the discharging barrel, wherein an air exhaust is formed in the vacuum cavity and is connected with a mechanical pump; a discharge treatment device and a transfer device are arranged in the vacuum cavity; the discharge treatment device comprises two polar plates arranged in parallel and a discharge treatment radio-frequency power supply connected with the two polar plates; the distance between the two polar plates is 30-40mm; a preionization device is arranged in the vacuum cavity and comprises an electrode and a preionization radio-frequency power supply connected with the electrode; and the vacuum cavity is connected with an earth phase. According to the equipment disclosed by the invention, the preionization device is arranged in the vacuum cavity, so that the working power supply can instantaneously build up luminance, and the time needed by processing is accurately controlled; with the adoption of ionization dust removal, the working space is clean; and moreover, large-scale treatment of medium and large particle seeds with the particle size of more than 15mm can be realized under the condition that the mature process parameters are guaranteed.

A deep-cavity filter plate combined filter press provided by the invention comprises a box type filter plate, a diaphragm filter plate and a PLC automatic control system. A sealed filter chamber is formed between the adjacent box type filter plate and diaphragm filter plate. The deep-cavity filter plate combined filter press is characterized in that a feeding pipeline and a water outlet pipeline are arranged at the upper end and the lower end of the box type filter plate respectively, a pressure sensor is arranged in the filter chamber, and the pressure sensor is connected with the PLC automatic control system and is used for automatically monitoring the pressure change in the filter chamber; automatic control valves are arranged on a feeding pipe connected with the feeding pipeline, a water outlet pipe connected with the water outlet pipeline and a water inlet pipe connected with a water inlet pipeline; and the box type filter plate and the diaphragm filter plate are respectively provided with traction mechanisms, the traction mechanisms are controlled by a hydraulic oil cylinder to provide advancing power, and the hydraulic oil cylinder is connected with the PLC automatic control system. The overall filter pressing efficiency of the filter press is improved, the thickness of a filter cake is increased, and the maximum filter pressing thickness reaches 60 mm.

The invention discloses a double-discharge plasma igniter with hollow ventilation anodes. The double-discharge plasma igniter with the hollow ventilation anodes comprises an upper anode, a lower anode, an upper grounding electrode, a lower grounding electrode, an anode insulating sleeve and a grounding electrode insulating sleeve, wherein the upper grounding electrode and the lower grounding electrode are connected; the anode insulating sleeve is arranged inside the upper grounding electrode; the upper anode is embedded into the wall of the anode insulating sleeve; the lower anode is composedof a body section a and a body section b, the body section a is arranged inside the mounting hole of the anode insulating sleeve, and the body section b is mounted inside the lower grounding electrode; the connecting part between the lower grounding electrode and the upper grounding electrode is provided with a groove, which is formed in the inner wall of the lower grounding electrode; the grounding electrode insulating sleeve is mounted inside the groove. The double-discharge plasma igniter with the hollow ventilation anodes can combines the advantages of wide lean combustion limit and high reaction activity of non-equilibrium plasmas and the advantages of high working air pressure and the like of thermal equilibrium plasmas to achieve the aim of high-energy and stable ignition within a wide fuel-air ratio range.

The invention discloses a double-discharge mode plasma igniter with an eccentric double-anode structure, belongs to the field of power and aims to realize dielectric barrier discharge and arc discharge and spatially take compactness into consideration. The double-discharge mode plasma igniter comprises a shell, a long anode, a short anode, an anode insulation positioning sleeve and grounding electrodes, the grounding electrodes are mounted in the shell and connected in a surrounding manner to form a recessed hollow column, the diameter of the hollow column is gradually decreased from top to bottom, the hollow column is divided into two portions, the upper portion and the lower portion are connected to form a horizontal ring wall by the aid of the grounding electrodes owing to rapid decrease of the diameters of the upper portion and the lower portion, the diameter of the lower portion is decreased as the horizontal width of the grounding electrode in a short slot is increased, the horizontal widths of the grounding electrodes on insulation side walls are basically the same, compactness is spatially taken into consideration, two types of discharge can be realized, the internal structure of the igniter is necessarily eccentric, and then the igniter can simultaneously achieve two effects.

The invention discloses a plasma ignitor with an air outlet inclined hole and multi-anode structure. The plasma ignitor comprises a short anode, a long anode and an anode insulation positioning sleevewhich are located in a grounding electrode; an air inlet a inclined downwards is formed in one end of the upper portion of the grounding electrode, an air inlet b inclined downwards is formed in theother end of the upper portion of the grounding electrode, and the air inlet a, the air inlet b and an ionization space a are communicated; a plurality of air inlet inclined holes which are formed circumferentially and inclined downwards are formed in the lower end of the long anode. Due to the fact that fuel and air for ignition are introduced through the air inlet, no back flow of mixed gas inside a main combustion chamber is needed, the equivalent ratio of mixed gas in the ionization space a and the ionization space b can be controlled by adopting a method for controlling fuel flow throughthe air inlet b and air through the air inlet a according to the ignition condition, and the purpose of improving the ionization and ignition effect according to the actual working condition is achieved.

The invention discloses a double-discharge-mode plasma igniter with a multi-anode structure, and belongs to the field of power. In order to achieve the effect that an existing spark plug/ igniter canbe applied to a large-space combustion chamber engine, an insulation positioning sleeve comprises a positioning ring which can be buckled with an annular wall for positioning, the positioning ring isprovided with a short anode annular hole and a long anode open hole, moreover, a short annular groove which seals downwards and contains short anodes is formed below the short anode annular hole by using an insulating material, the multiple short anodes are limited in the short annular groove, the multiple short anodes are separated through an insulating medium, the short annular groove extends into a first diameter value maintaining section at the lower portion, a long anode penetrates out of a long anode open hole and extends to an outlet section, the short annular groove surrounds the longanode, and a hollow portion is formed between the long anode and the short annular groove. The effect that by adopting an dielectric barrier discharge-arc discharge combined discharge mode, the advantages of imbalanced plasma for wide lean-burn limit and large reaction activity can be combined is achieved.

The invention discloses an igniter with a double-inlet eccentric double-anode structure. The igniter with the double-inlet eccentric double-anode structure comprises a short anode, a long anode, an anode insulating positioning sleeve, a grounding electrode, an air inlet a, an air inlet b and air inlet inclined holes. An ionization space a is formed between the anode insulating positioning sleeve and the grounding electrode, and an ionization space b is formed between the lower end part of the long anode and the grounding electrode; the inclined downward air inlet a is formed in one end of theupper part of the grounding electrode, the inclined downward air inlet b is formed in the lower part of the grounding electrode, the air inlet a is placed at the top of the ionization space a, and theair inlet b is placed at the top of the ionization space b; and the multiple air inlet inclined holes which are arranged in the week direction and incline downwards are formed in the lower end of thelong anode. According to the igniter with the double-inlet eccentric double-anode structure, air (or fuel) injected from the air inlet b and air injected from the lower anode cool the anodes and canprolong the service life of an electrode.

The invention relates to a combustion engine, in particular to a combustion engine capable of using electric heat energy in an independent mode or in an auxiliary mode. As is known to all, combustion engines which are widely used at present are diesel-oil-fueled diesel engines and gasoline-fueled gasoline engines. Due to the fact that the two kinds of engines are dependent on fossil fuel and serious pollution is caused by the exhaust gas emission, two social issues, namely energy saving and environment protection, which are increasingly prominent in current society are aggravated. According to the combustion engine capable of using the electric heat energy in the independent mode or in the auxiliary mode, a nearly-boiling water infusing method is adopted, working efficiency is greatly improved, and emission pollution is reduced at the same time. Particularly, the combustion engine capable of using the electric heat energy in the independent mode or in the auxiliary mode can use various kinds of fuel which relates to almost all liquid fuel and all gas fuel and comprises high-energy gas fuel, such as hydrogen and acetylene, frequently-used fossil fuel, such as fuel oil and natural gas, and high-igniting-point biolipid generative fuel, such as alcohol and illegal cooking oil. The combustion engine can also use the electric heat energy in the independent mode or in the auxiliary mode for operation, high efficiency and energy saving are achieved in the true sense, and environment is protected.

The invention discloses a working method of an igniter with a fuel passage and a hollow anode structure. The working method specifically comprises the following steps that a power source firstly supplies power to a plurality of short anodes at a low voltage U1, and a long anode is not electrified at the moment; dielectric barrier discharge is generated at the low voltage, fuel molecules located inan ionization space a are ionized under the action of an external electric field to generate non-equilibrium plasma composed of free electrons and positively charged positive ions; the power source supplies power to the long anode at a higher voltage U2; arc discharge occurs between the long anode and a grounding electrode under the action of the high voltage; when the long anode is electrified,an air channel in the long anode is fed with air; and small amount of high-activity gas formed in an ionization space b enters the air channel through an air inlet inclined hole. According to the method, the problems that an existing heat balance plasma igniter is small in ignition energy, poor in ignition reliability, and low in ignition energy utilization rate when the heat balance plasma igniter is applied to an engine of a large-space combustion chamber and a natural gas engine are solved.