901 results about "Intermediate pressure" patented technology

The invention provides a solar energy-air energy composite heat pump system based on self-contained energy storage cascade application and a control method. The solar energy-air energy composite heat pump system comprises a heat pump host module, a solar module and a hydraulic module. Hot water generated by the solar heat collector is accumulated in the energy storage water tank and serves as an external heat source for active enhanced vapor injection to improve the performance of the heat pump. An active enhanced vapor injection device is designed for a heat pump host module, a refrigerant in an economizer absorbs heat of heat storage hot water, is jetted to a middle pressure cavity of a compressor and is converted into heating capacity, and the performance of the heat pump is greatly improved. When it is detected that the temperature in the heat storage water tank is reduced to a certain temperature, the flow direction of the heat storage hot water is switched through the switching assembly, the heat storage hot water is pumped to the heat pump fluorine-water heat exchanger for heat exchange, the heat pump performance is improved, and cascade application of the heat storage hot water is achieved. Refrigerant flows in the fin type heat exchanger and the fluorine-water heat exchanger are controlled by respective electronic expansion valves, and the opening degrees of the fin type heat exchanger and the fluorine-water heat exchanger are adjusted according to respective air suction superheat degrees, so that respective optimal heat exchange effects are realized.

The utility model discloses a large-flow three-phase jet elevating fire truck which comprises a chassis and an auxiliary beam fixedly installed at the top end of the chassis, supporting legs are fixedly installed at the bottom end of the auxiliary beam, a dry powder tank and a nitrogen tank are fixedly installed at the top end of the auxiliary beam, and the dry powder tank is communicated with the nitrogen tank. One end of the dry powder tank is communicated with a dry powder reel, and a main powder pipe is communicated between the dry powder tank and the dry powder reel. According to the utility model, superfine dry powder can be used for extinguishing fire through the nitrogen tank and the dry powder pipe, and the high-power diesel engine set and the medium-pressure centrifugal water pump are integrated together, so that the requirement of 200L / s high-flow anti-reburning fire extinguishing agent injection can be met, and the fire extinguishing agent can be continuously supplied by being matched with a remote water supply vehicle, a powder supply vehicle and a liquid supply vehicle; the fire monitor has the function of extinguishing the fire of the oil storage tank in a long range, fire extinguishing is performed corresponding to different burning fire materials and different fire extinguishing materials, and the fire extinguishing performance and efficiency are improved.

The invention provides a flash steam pressurization gas supply and reliquefaction circulation combined system and a liquid cargo ship. The combined system comprises a first heat exchanger, a second heat exchanger, a multi-stage compression device, a reliquefaction pipeline and a gas-liquid separation module, and flash steam is input into the first side of the first heat exchanger. The main inlet of the compression device is connected with the first side of the first heat exchanger. And a liquid return opening is formed in the pipeline before the last-stage compression in the compression device. And an outlet of the reliquefaction pipeline is connected with a second side inlet of the first heat exchanger and a first side inlet of the second heat exchanger through parallel connection of first and second pipelines. The second side of the first heat exchanger and the first side outlet of the second heat exchanger are connected with the liquid inlet of the gas-liquid separation module, the liquid outlet is connected with the liquid cargo tank, and at least part of gas discharged from the gas outlet is sent to the pipeline before the first-stage compression and after the first-stage compression of the liquid return port through the second side of the second heat exchanger. High-pressure gas supply and flash steam medium-pressure reliquefaction are achieved, energy consumption is reduced, and the reliquefaction capacity is improved.

The invention discloses a low-pressure cylinder zero-output coupling steam heat accumulator which comprises an intermediate-pressure cylinder connected with a reheating hot section of a steam turbine; the low-pressure cylinder is connected with the output end of the medium-pressure cylinder; a cooling steam source is also connected; the generator is connected with the output end of the medium-pressure cylinder and / or the low-pressure cylinder to generate electric energy; the condenser is connected with the output end of the low-pressure cylinder; the condensate pump is connected with the output end of the condenser and further connected with the output end of the intermediate-pressure cylinder. The steam heat accumulator is connected with the output end of the medium-pressure cylinder; and the regenerative heating mechanism is respectively connected with the output ends of the steam heat accumulator and the intermediate pressure cylinder and is also connected with the input end of the condensate pump. In the deep peak regulation period of the unit, cooling steam enters the low-pressure cylinder, output of the unit can be reduced, part of heat is released through the steam heat accumulator, return water is heated and output through the regenerative heating mechanism, and deep peak regulation and thermoelectric decoupling of the unit are achieved.

A heat pump includes a refrigerant loop. The refrigerant loop includes a first heat exchanger, a first region of a second heat exchanger, a third heat exchanger, a fourth heat exchanger, a compressor, a vapor generator, and a four-way valve. The compressor includes a low-pressure inlet, a mid-pressure inlet, and an outlet. The vapor generator is positioned downstream of the outlet of the compressor and upstream of both the low-pressure inlet and the mid-pressure inlet. The four-way valve is positioned immediately upstream of the first heat exchanger. At least one component chosen from the first heat exchanger, the second heat exchanger, and the vapor generator is free from compressor-driven flow of the first heat exchange fluid during a first predetermined set of heating modes of operation of the heat pump and a first predetermined set of cooling modes of operation of the heat pump.

The utility model relates to the technical field of steam turbines, and discloses a thermodynamic system of a coupling back pressure turbine for wide-load peak regulation, which is provided with a boiler, a back pressure turbine, a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a generator and a recovery mechanism, the boiler is respectively connected with the back pressure machine, the high-pressure cylinder and the intermediate-pressure cylinder; the back pressure machine is connected with the high-pressure cylinder; the medium-pressure cylinder is connected with the low-pressure cylinder; the low-pressure cylinder is connected with the generator; the recycling mechanism is connected with the low-pressure cylinder and the boiler and used for condensing steam discharged by the low-pressure cylinder and recycling and conveying the steam to the boiler. In a high-load operation state, the thermodynamic system, the back pressure turbine and the high-pressure cylinder operate in parallel, and the boiler conveys steam to the back pressure turbine and the high-pressure cylinder. In the thermodynamic system in a low-load operation state, the back pressure machine and the high-pressure cylinder are connected in series for operation, the boiler conveys steam to the back pressure machine, and the back pressure machine conveys steam to the high-pressure cylinder. According to the utility model, the pressure of steam entering the steam turbine during low-load operation can be improved, and the feed water temperature and the operation economy can be improved.

The invention relates to enclosures (1) for gas-insulated medium-voltage or high voltage apparatuses. A connection portion (4) between a first end (20) of the first enclosure tube (2) and a mating machined second end (30) of the second enclosure tube (3) has a gas-escape path (L) running from the inside (6) to the outside (7) of the enclosure tubes (2, 3). According to the invention, the gas-escape path (L1) is shaped to have a first segment (L1) running along an at least partially axial direction of the enclosure (1) and being equipped with least one sealing ring (5; 5a, 5b). In addition, a slim ring-like snap-on bracket (9) can be used. The direct machining of the mating enclosure ends (20, 30) allows to omit conventional flanges. The partially axial orientation of the gas-escape path (L) allows to provide plural sealing rings (5; 5a, 5b) in series in the gas-escape path (L).

The invention relates to a sealing system comprising two components (10, 10 ') which are part of a high-pressure or medium-pressure device containing a gas, where each of the components (10, 10') comprises an end face or assembly face (12) facing an end face or assembly face (12) of the other component (10), and where a compression sealing gasket (14, 14 ') is compressed between the end faces or assembly faces (12, 12') of the components (10, 10 '), the compression seal gasket (14, 14 ') comprises a body (18, 38) made of elastomeric material and comprises a radially outer face (20, 30) and a radially inner face (22, 32) coaxial with each other wherein at least one of the radially outer face (20, 30) and the radially inner face (22, 32) comprises at least one first thin layer (23, 33) made of metal or soft metal or PTFE and having a thickness of between 1 nm and 1 mm.

Refrigerant circuit of a combined refrigeration system and heat pump with integrated steam injection circuit, wherein a 3-way valve (2) is arranged as a distribution point in the refrigerant circuit after a compressor (1), and an outdoor condenser / gas cooler (3), a main internal heat exchanger (5) and a check valve (6) as well as a connection point (19) are arranged in a refrigeration system line, and an indoor condenser / gas cooler (4) and a check valve (6) are arranged in a heat pump line,after which the heat pump line is joined to the refrigeration system line at the connection point (19) and the condensed or cooled refrigerant is subsequently led via an expansion device vapor injection (7) via the cold side of a secondary internal heat exchanger (8) to a medium-pressure chiller (9) and subsequently via a direct steam injection connection (18) into the compressor (1) and / or the condensed or cooled refrigerant is led via the warm side of the secondary internal heat exchanger (8) to an evaporator (12) and / or to a low-pressure chiller (13) before the refrigerant vapor is led via a liquid separator suction side (14) and the main internal heat exchanger (5) on the cold side to the suction side of the compressor (1).

The invention discloses a decarburization coal power system coupled with a reversible Brayton cycle heat pump and a method thereof. The decarburization coal power system comprises a coal-fired power generation subsystem used for converting heat into electric energy, a decarburization subsystem used for treating carbon dioxide emission and a heat pump heat storage subsystem used for improving the energy utilization efficiency. Exhausted smoke of a boiler in the coal-fired power generation subsystem passes through a smoke steam cooler in the decarburization subsystem and then enters an absorption tower; the coal-fired power generation subsystem sends high-temperature steam generated by a boiler into the heat pump heat storage subsystem through a high-pressure cylinder and an intermediate-pressure cylinder, and the heat pump heat storage subsystem stores high-temperature molten salt after heat absorption into a high-temperature storage tank. The system has the beneficial effects that the heat pump heat storage subsystem is constructed through the reversible Brayton cycle, supercritical carbon dioxide is adopted as a cycle working medium, and a phase change material and molten salt are adopted as heat storage media, so that the energy storage density is improved, and the stability and high efficiency of the heat storage and release process are guaranteed; therefore, the system can better adapt to fluctuation of the power grid load, and quick response is realized.

The invention relates to a full-process automatic operation control method for a sub-medium-pressure steam turbine island. The method comprises the following steps of (1) starting inspection, (2) auxiliary engine starting, (3) speed increasing, (4) grid connection, (5) load increasing, (6) automatic shutdown and (7) bypass automatic operation under abnormal working conditions. According to the scheme, operation of operators is reduced, and the automation level of the unit is improved. The invention further provides a control method for economical and safe operation of the steam turbine based on boundary control.

The invention discloses a source and storage integrated low-carbon power generation system and an operation method. The system comprises a coal-fired power generation subsystem, a decarburization subsystem and a pump heat energy storage subsystem. In order to improve the operation flexibility and the energy efficiency level of the system, the system is optimized as follows: (1) in a low ebb of electricity consumption, electric energy is output to drive a compressor to pressurize and heat steam extracted by an intermediate-pressure cylinder, then molten salt is heated, and then the steam enters a reboiler after acting through an expansion machine; and finally, redundant electric energy is converted into heat energy of the fused salt to be stored. And (2) in the peak period of power utilization, the feed water from the deaerator is heated by the high-temperature fused salt stored in the fused salt storage tank and then enters the expansion machine to do work, so that the output of the decarburization coal-fired power generation unit is improved. And the extracted steam of the intermediate-pressure cylinder acts through the expansion machine and then enters the reboiler. And (3) normal-temperature water serves as a heat absorption working medium, waste heat in the decarburization process is sequentially absorbed according to the heat grade, and part of medium-pressure cylinder extraction steam is replaced under the action of the ejector to provide heat for the reboiler. According to the system, the carbon capture energy efficiency punishment is effectively reduced, and the operation flexibility is improved.

The embodiment of the invention provides a multi-steam-source cooperative frequency modulation combined heat and power generation system and a control method. The system comprises a boiler, a high-pressure cylinder, an intermediate-pressure cylinder, a low-pressure cylinder, a power generator, a multi-stage regenerative heater, a heating system and a heating steam supply pipeline. A main steam outlet of the boiler is connected to the high-pressure cylinder through a main steam pipeline, a steam exhaust port of the high-pressure cylinder is connected to the intermediate-pressure cylinder through a pipeline, a steam exhaust port of the intermediate-pressure cylinder is connected to the low-pressure cylinder through a pipeline, and a steam exhaust port of the low-pressure cylinder is connected to the generator through a pipeline. A condensate water outlet of the medium-pressure cylinder is communicated to a condensate water inlet of the boiler through a first condensate water pipeline; the heating system is communicated with a steam exhaust port of the medium-pressure cylinder through a heating steam supply pipeline; the multi-stage regenerative heater is arranged on the first condensate water pipeline and connected with the high-pressure cylinder and / or the intermediate-pressure cylinder through steam extraction pipelines, and steam extraction adjusting valves are correspondingly arranged on the steam extraction pipeline between the high-pressure cylinder and the multi-stage regenerative heater and / or the steam extraction pipeline between the intermediate-pressure cylinder and the multi-stage regenerative heater.

The invention relates to the technical field of oil well operation tools, in particular to a midway pressure test hydraulic oil drainage type tubing anchor and a using method thereof.The hydraulic tubing anchor comprises a center pipe, a cone connector, an anchor tile and a piston assembly, the cone connector is arranged at the top of the center pipe, and a sealing ring I is arranged between the cone connector and the center pipe for sealing; the center pipe is connected with an oil pipe through the cone connector, the anchor tile and the piston assembly are sleeved on the center pipe, the anchor tile is arranged between the cone connector and the piston assembly, one end of the anchor tile is provided with a cone hole matched with the cone connector, and the other end of the anchor tile is connected with the piston assembly. The oil drainage action can be completed by adopting a mode of directly pressing into the oil pipe, and any tool does not need to be put into the oil pipe; mainly solves the problem that in the operation process of an oil well, under the condition that a tubular column is not moved, the oil drainage function of the tubular column is realized, so that conventional well washing can be carried out, an oil tube and a sucker rod are cleaned together, and crude oil brought out and environment pollution caused by tube and rod lifting are reduced.

The invention relates to the technical field of compressed air energy storage power stations, and discloses a pipeline purging arrangement method for a large compressed air energy storage power station, which comprises the following steps of: taking out a throttling orifice plate, a nozzle, a valve core and a filter screen, and isolating and protecting a meter and a sensor; the first-section compressor serves as an air source, and a first-section compressor outlet pipeline and a first-section compression side emptying pipeline are purged; purging a second-section compressor outlet pipeline, a second-section anti-surge pipeline, a third-section anti-surge pipeline and a third-section emptying pipeline; blowing a third-section compressor outlet pipeline and a second-section emptying pipeline; a first-section compressor and a second-section compressor serve as air sources, and a pipeline behind a third-section compressor, an injection-production mother pipe, a high-pressure cylinder inlet pipeline and a pipeline in front of an inlet of a medium-pressure heat exchanger are purged; purging high-pressure and medium-pressure cylinder inlet pipelines and a low-pressure cylinder inlet heat exchanger pipeline; and high-pressure, medium-pressure and low-pressure cylinder inlet pipelines and exhaust pipelines are purged. The full-flow and multi-stage purging method of the compression side and the expansion side is adopted, the defects of a sectional purging arrangement method are overcome, and instability caused by the fact that a bypass air inlet channel is additionally arranged is avoided.

The invention discloses a vibration-CO2 corrosion coupling effect real-time monitoring system and monitoring method for a well cementation cement sheath of an oil and gas well in a high-temperature and high-pressure environment. The system comprises a kettle system which is fixed with a base of an axial loading system, and a push rod of the axial loading system extends into the kettle system from the center of a kettle cover and is pressed on a detected body; the CT detection system is mounted below a jack supporting plate of the axial loading system; the electrolytic corrosion system is connected with the lower end of a first embedded axial pipeline on the side wall of a kettle body in the kettle system so as to apply an experimental environment; the gas pressurization system is divided into two paths, one path is led into the kettle system from the lower part, and the other path is connected with the lower end of the second embedded axial pipeline; a sleeve of the kettle system is fixed in the kettle system, the nondestructive testing system is installed in the middle of the sleeve, and the vibration system in the sleeve is installed on the lower portion of the sleeve. According to the invention, axial loading, gas pressurization and heating devices are integrated, and an underground high-temperature and high-pressure environment is simulated; and CT and ultrasonic waves cooperate to realize multi-dimensional dynamic monitoring of the corrosion process.

The invention relates to the technical field of energy storage, and provides a liquid air energy storage system coupled with an air separation device, which comprises an air compression system, an expansion power generation system, a cold box cold storage system and a liquid air storage tank. The air compression system and the expansion power generation system are both connected with the cold box cold storage system and the liquid air storage tank. The cold box cold storage system is coupled with the air separation device; in the energy storage stage, extra liquid nitrogen produced by the air separation device is used for cooling and liquefying the high-pressure air passing through the cold box, and the liquid nitrogen is gasified and stored in a medium-pressure nitrogen tank; and in the energy release stage, the nitrogen stored in the medium-pressure nitrogen tank reheats the liquid air passing through the cold box, and the nitrogen is cooled and liquefied by the liquid air for use. The cold box cold storage system is coupled with the air separation device to replace an original cold storage unit of the liquid air energy storage system to achieve the energy storage and release process, a cold storage medium does not need to be arranged for the liquid air energy storage system, the purchase cost of the cold storage medium is reduced, and safe operation of the liquid air energy storage system is facilitated.

A compressor includes a housing, a first compression mechanism and a second compression mechanism disposed in the housing, and a housing cover fixed to the housing. Both the first compression mechanism and the second compression mechanism are configured to compress a working fluid from a suction pressure to a discharge pressure. The first compression mechanism includes a first cylinder housing having a first fluid storage plenum. The second compression mechanism includes a second cylinder housing having a second fluid storage plenum. The housing cover defines an intermediate-fluid port in fluid communication with the first fluid storage plenum via a first intermediate-fluid passage and the second fluid storage plenum via a second intermediate-fluid passage. Working fluid at an intermediate pressure enters the intermediate-fluid port. The intermediate pressure is greater than the suction pressure and less than the discharge pressure.

The invention discloses a system for assisting energy storage and peak regulation of a high-temperature hot water tank through fused salt and a control method, and belongs to the technical field of energy storage and peak regulation. The system comprises a unit power generation circulating system and a heat storage system. The heat storage system comprises a high-temperature hot water energy storage part and a fused salt energy storage part, and a high-temperature fused salt storage tank and a low-temperature fused salt storage tank are arranged in the fused salt energy storage part, so that part of heat of redundant steam of a boiler is stored in high-temperature fused salt when the unit operates at low load; the high-pressure and high-temperature steam after heat exchange with the high-temperature fused salt is bubbled in the water storage tank, water in the water storage tank is heated into high-temperature hot water, and therefore steam heat generated by the boiler is completely stored. When the unit is high in load and needs to release energy, high-temperature hot water in the high-temperature hot water tank is converted into saturated steam through the pressure reducer, then exchanges heat with the high-temperature fused salt and is heated into superheated steam, and the superheated steam enters the medium-pressure cylinder to expand and do work. The system can improve the peak regulation capacity of the unit and quickly realize the change of the unit response load.

The invention relates to the technical field of automobile detection, and discloses an auxiliary device for new energy automobile part detection, which comprises a workbench, a reservoir filled with clear water is arranged in the workbench, a to-be-detected automobile oil tank is placed in the reservoir, an auxiliary arm is arranged above the reservoir, and the auxiliary arm is connected with the workbench. One end, close to the reservoir, of the auxiliary arm is provided with a pressure sinking mechanism used for pressing the automobile fuel tank into clear water in the reservoir. The bottom wall of the automobile fuel tank is knocked through the tank shaking and bubble discharging piece of the bubble discharging mechanism in a telescopic mode, the automobile fuel tank is effectively vibrated, bubbles in gaps in the lower surface of the automobile fuel tank are prompted to be discharged, the misjudgment situation caused by bubble retention is remarkably reduced through the step, and the sealing performance detection result is more reliable and accurate; the automatic bubble discharging and vibrating process reduces the need of manual intervention, the detection efficiency is improved, an operator only needs to start the device, the steps of bubble discharging and automobile fuel tank vibrating can be automatically completed, and time and labor cost are saved.

The invention provides a thermal power generating unit fused salt heat supply system, and belongs to the technical field of thermal power generating unit heat supply. The fused salt heat supply system of the thermal power generating unit comprises a steam turbine unit and a fused salt assembly. According to the system, low-temperature fused salt is heated through steam extraction of an intermediate-pressure cylinder of a turboset, and fused salt and extracted steam at different temperatures are generated. And the fused salt assembly performs multi-stage heat exchange by using the fused salt and the extracted steam, so that the deoxygenated feed water is finally heated, and external heat supply steam with high and low parameters is generated. The system effectively completes heat storage and heat release of the fused salt, cyclic utilization of the fused salt is achieved, and the energy efficiency is improved. According to the invention, heat storage is carried out on the fused salt assembly through cascade extraction steam utilization of the turboset, the fused salt assembly raises the temperature of heat supply water with different parameters through heat release, and heat is supplied to the outside after the temperature required by a user is reached.

The invention provides a method for testing single parameters of a gas compressor. The method comprises the following steps: determining the single parameters of the gas compressor to be tested; multiple adjustment tests of single parameters are carried out, the total pressure ratio of the gas compressor is kept stable through the gas compressor isobaric ratio automatic control method, and the gas compressor isobaric ratio automatic control method comprises the following steps that a target pressure ratio set value is determined; the compressor inlet total pressure and the compressor outlet total pressure are collected in real time, and a pressure ratio feedback value is calculated; calculating the deviation between the pressure ratio feedback value and the target pressure ratio set value; calculating a control output value by taking the deviation as an input quantity by using a PID algorithm; and controlling the opening degree of the exhaust valve according to the target pressure ratio set value, the pressure ratio feedback value, the deviation and the control output value. According to the method, for the single parameter test of the engine, it is guaranteed that the environment variable, namely the pressure ratio, is not changed in the one-way parameter test process, the influence of the variable, namely the pressure ratio, is eliminated, and more accurate test data are obtained.

The invention discloses a wind-light-coal-storage multi-energy complementary power station peak shaving system and an operation method. The system comprises a coal-fired power generation unit, an electric heating pump, a heat storage tank, a cold storage tank, a heat exchanger, wind power and photovoltaic power generation equipment, a power controller and the like. Redundant electric quantity of a power grid is consumed through a heat pump and converted into heat energy and cold energy in two qualities to be stored respectively in a power off-peak period, meanwhile, a high-temperature heat storage tank is adopted to store part of exhaust steam of a pressure cylinder in a steam turbine, part of condensed water of the steam turbine is heated through heat storage in a cascade mode in a power peak period, and meanwhile, cold storage release is matched with a high-vacuum-degree condenser; and the unit output is improved. According to the invention, power storage is replaced by cascade cold storage and heat storage, flexible and efficient peak regulation of the power station is realized, and the new energy power consumption level can be greatly improved.

The present invention discloses a cascade heat storage system and working method for a molten salt coupled thermal power unit. The present invention provides a first molten salt heater and a second molten salt heater, respectively using the middle exhaust steam and the hot re-extraction steam to gradually heat the molten salt, and further using the electric molten salt heater to store heat, raising the molten salt temperature from 200°C to 600°C, adjusting the heat storage mode from the original full use of electric heat storage to more use of high-temperature steam and less use of electric heat storage, from full use of the terminal product of the coal-fired power plant - electric energy to more use of the intermediate product - middle exhaust steam and hot re-extraction steam, reducing the heat storage cost, and in the long run can greatly improve the economic efficiency of the molten salt storage and heat release cycle operation. At the same time, during the heat storage process, since part of the middle pressure cylinder exhaust steam and the hot re-extraction steam do not enter the low pressure cylinder and the middle pressure cylinder to do work, the power generation of the unit is reduced to achieve the purpose of rapid load reduction.

The invention discloses a high-pressure nitrogen inflation system and method suitable for a narrow metal container. The high-pressure nitrogen inflation system comprises a working gas source, a driving gas source, an inflation jig and a gas distribution console, and the inflation jig is used for being installed and communicated with the narrow metal container; a booster pump, a first pipeline and a second pipeline are arranged in the gas distribution console; the working gas source is communicated with the inflating jig through a first pipeline to form an inflating pipeline for inflating the narrow metal container; the driving gas source communicates with the booster pump through a second pipeline to form a boosting pipeline; the booster pump communicates with the inflation pipeline; the working gas source is started to fill high-pressure nitrogen into the narrow metal container through the gas filling pipeline, so that after the pressure value of the narrow metal container reaches an intermediate pressure value, the driving gas source is started to drive the booster pump to work through the pressurizing pipeline, and the high-pressure nitrogen output by the working gas source is pressurized through the booster pump and then filled into the narrow metal container. Therefore, the pressure value in the narrow metal container reaches the target pressure value.

Provided is a control method with which, in a plant combining a GTCC and a CO2 recovery device, it is possible to supply sufficient steam to the CO2 recovery device even during start-up of the GTCC. Specifically provided is a steam supply system for supplying steam generated in a heat recovery steam generator to a CO2 recovery device that recovers CO2 from exhaust gas discharged by a power generation plant, which includes a gas turbine, the heat recovery steam generator, and a steam turbine, wherein medium-pressure steam generated in the heat recovery steam generator is supplied to the CO2 recovery device during start-up of the power generation plant.

An accumulator assembly includes a medium pressure accumulator, having an MPA cavity including a brake-side passage and a pump-side passage. A nonpowered MPA fill valve is interposed fluidically between the pump-side passage of the MPA cavity and a source of pressurized hydraulic fluid. An MPA fill valve seat is located along an MPA fill valve fluid path. An MPA fill valve poppet is configured for reciprocal motion between a poppet rest position and a poppet closed position wherein an MPA fill valve poppet shoulder contacts the MPA fill valve seat to occlude fluid flow therepast. A powered MPA one-way valve is interposed fluidically between the brake-side passage and at least one corresponding wheel brake.

The purging system comprises a liquid nitrogen vacuum storage tank, a water bath type vaporizer, a liquid nitrogen tank car and a movable energy storage device, the liquid nitrogen vacuum storage tank is connected with a liquid nitrogen inlet of the water bath type vaporizer through a liquid nitrogen output pipeline, and a liquid nitrogen outlet valve is arranged on the liquid nitrogen output pipeline; the movable energy storage device is used for supplying steam to the water bath type vaporizer and connected with the steam supply pipe, the steam supply pipe is connected with a steam inlet of the water bath type vaporizer, a steam manual stop valve is arranged on the steam supply pipe, and a nitrogen outlet of the water bath type vaporizer is connected with the nitrogen output pipeline. The nitrogen output pipeline is connected with a medium-pressure nitrogen pipeline, a nitrogen stop valve and a medium-pressure nitrogen boundary area valve are arranged on the medium-pressure nitrogen pipeline, and the medium-pressure nitrogen pipeline is connected with an interconnection pipeline. The invention has the advantages of reduced cost, high cleanliness, small arrangement space, less control nodes, easy control of the flow pressure of vaporized nitrogen, and safe and simple operation.

The invention relates to a high-rotating-speed ultrahigh-pressure reheating condensing steam turbine which comprises an integral chassis, a cylinder, at least two bearing seats arranged at the front end and the rear end of the cylinder respectively and rotors supported on the two bearing seats, the cylinder extends in the front-back direction and is arranged on the integral chassis, and the high-rotating-speed ultrahigh-pressure reheating condensing steam turbine comprises a high-pressure outer cylinder and a high-pressure inner cylinder arranged in the high-pressure outer cylinder. The low-pressure rear cylinder is installed on the rear side of the high-pressure outer cylinder, the high-pressure outer cylinder is provided with a high-pressure steam exhaust structure allowing high-pressure steam to be exhausted and a reheat steam inlet cavity allowing reheat steam to enter, a high-pressure cavity, a medium-pressure cavity and a steam inlet cavity are defined between the high-pressure outer cylinder and the high-pressure inner cylinder, the high-pressure cavity and the medium-pressure cavity are distributed in a spaced mode, and the steam inlet cavity communicates with the high-pressure cavity. A low-pressure cavity communicated with the medium-pressure cavity and a low-pressure steam exhaust structure for exhausting low-pressure steam are formed in the low-pressure rear cylinder; the rotor is sequentially arranged in the high-pressure cavity, the low-pressure cavity and the steam exhaust cavity in a penetrating mode. The invention aims to solve the problems of low efficiency, large size and complex field installation of the existing low-power high-steam-admission-parameter steam turbine.

A water separator for use in an environmental control system of an aircraft includes an outer housing having an upstream end, a downstream end, and a central longitudinal axis. A plurality of vanes are arranged within the outer housing and are spaced about the central longitudinal axis. The plurality of vanes have an inlet end proximate to the upstream end and an outlet end proximate to the downstream end. An exterior edge of each of the plurality of vanes is in contact with an interior surface of the outer housing and a hollow channel is defined by an interior edge of the plurality of vanes. A plurality of flow channels is formed between the plurality of vanes and the outer housing. The plurality of flow channels has a spiral-like configuration about the central longitudinal axis.