34results about How to "Meet the needs of normal operation" patented technology

The invention provides a constructing method for a basic pit at the upper part of a shield tunnel; the H-type steel inserted in a stake reinforces the soil body round the shield tunnel and encloses the basic pit; the stake provided in the pit is pumped and deformed; the separating stake divides the basic pit into plurality of small basic pits with width less than 8m; each basic pit is processing the digging by the barn jumping method; 2-4m soil is remained to the last layer of soil body for each basic pit; each small basic pit is divided into plurality of small blocks for digging the small blocks; after digging the small soil body, each small bottom plate is casted and each soil body is poured to compete the construction in 7 hours; the methods above can reduce the pumping and deformation while digging the basic pits to conform to the request of the shield tunnel and satisfy the requirement of the normal operation.

The invention relates to a foundation pit excavation supporting structure on a near end well shield tunnel and a construction method of the foundation pit excavation supporting structure. The invention aims at providing the foundation pit excavation supporting structure on the near end well shield tunnel and the construction method of the foundation pit excavation supporting structure, the doming deformation of the foundation pit excavation is reduced, and the construction difficulty is reduced. The invention has the technical scheme that according to the foundation pit excavation supporting structure on the near end well shield tunnel and the construction method of the foundation pit excavation supporting structure, an M-shaped reinforcing structure is arranged on the shield tunnel under a planned excavation foundation fit region, the M-shaped reinforcing structure comprises deep layer reinforcing regions positioned between two sides of the tunnel as well as between the tunnels, the top ends of the two adjacent deep layer reinforcing regions are connected through top reinforcing regions above the shield tunnel, rest regions in the foundation range are superficial layer reinforcing regions, drilling cast-in-place piles are constructed in the deep layer reinforcing regions at intervals, the top surfaces of all reinforcing regions are integrally cast with bottom plates, and the edge of the foundation pit is provided with a circle of foundation pit surrounding and protecting structure. The foundation pit excavation supporting structure and the treatment method are applicable to urban underground space building and the node treatment of the near end well shield tunnel.

The invention relates to ladle kerb casting material and a ladle kerb preparation method by the ladle kerb casting material. The casting material comprises the following components in weight percentage: 60-82% of ladle lining waste having a grain size of 1-8mm, 10-20% of bauxite grain size of 0.044-1mm, 2-10% of silicon dioxide superfine(less than or equal to 0.02mum), 5-10% of magnesium oxide fine powder grain size of 0.044-0.088 and 0.01-1% of sodium polyphosphate. The preparation method comprises ladle kerb lining waste selecting, crushing, mixing evenly and adding water while stirring, casting, maintaining, baking and the like. The waste ladle kerb casting material is recycled by the preparation method so that the production cost of the fireproof materials and the steel-making cost can be obviously reduced, the economic benefit is improved and the social meaning of protecting environment and saving energy can be realized; the ladle kerb prepared by the ladle kerb casting material has the advantages of good high-temperature volume stability, enough common/ medium/ high temperature strength, strong anti-slag corrosion and anti erosion-corrosion, thus satisfying the requirements for maintaining the normal running of the ladles.

The invention discloses a tide and river power station, which is a novel hydroelectric power stations and is suitable for hydraulic power station devices and facilities which generate electricity through the kinetic energy of tide produced by strong swellings and falling tides in shallow sea waters and hydraulic power station devices and facilities which generate electricity through the kinetic energy of water in great rivers. The tide and river power station disclosed by the invention not only breaks through the current situation that the human being cannot generate electricity through the energies of tide and river water, but also can repeatedly utilize the water body in the same unit for continuous N times so that the human being can efficiently generate electricity through the energies of the tide and the river water. The tide and river power station is composed of facilities and devices such as a drainage dam, a flow stabilization canal, a wave blocking dam, a generator room, a generator, a waterwheel power machine, and the like.

The invention discloses a calculation method for small clear distance heavy haul railway cross tunnel bottom placement. The method comprises the following steps that: (i) calculating vertical concentrated force applied to a tunnel bottom when a heavy haul railway runs; (ii) calculating the tunnel bottom placement under a railway load function; (iii) determining the peripheral stress state, which is affected by a train load, of a new tunnel under a railway; (iv) calculating existing tunnel displacement caused by the digging of the tunnel under the railway; and (v) calculating the influence of the train load and the existing tunnel displacement under the digging function of the tunnel under the railway. By use of the method, an intersection surrounding rock is subjected to stress analysis, aheavy haul additional load, existing tunnel structure intensity, rock body intensity characteristics, cross tunnel burial depth and cross tunnel interlayer rock pillar height, the small clear distance heavy haul railway cross tunnel bottom placement value is analyzed and calculated, the deformation settling volume of the constructed tunnel in a tunnel traversing engineering so as to meet the normal operation of the existing tunnel and the requirement of the safety construction of the new tunnel.

The invention discloses an air conditioner power consumption control method and system, a storage medium and an air conditioner. The method comprises the steps that the set power consumption of a useris received; according to the current operation mode of the air conditioner, whether the set power consumption contains the power consumption corresponding to electric auxiliary heat or not is judged; under the condition that the set power consumption does not contain the power consumption corresponding to electric auxiliary heat, a first operation frequency corresponding to the set power consumption is obtained according to the temperature range where the current outdoor environment temperature is located and the corresponding relationship between the operation frequency of a compressor in the temperature range and the power consumption; whether the first operation frequency exceeds a frequency protection threshold range or not is judged; and under the condition that the first operationfrequency does not exceed the frequency protection threshold range, the compressor of the air conditioner is controlled to run at the first operation frequency. Under the condition that the frequencyprotection threshold range is not exceeded, the power consumption control requirement is further met, and meanwhile, the demand of the user for power consumption control and the requirement for normaloperation of the air conditioner are met.

The invention discloses a pre-treatment system for acid water of an oil refinery, which is mainly composed of three acid water storage tanks connected in sequence, two water seal tanks, two sets of impurity and oil removing devices and one set of acid water gas ejecting, degassing and deodorization device 6. The three acid water storage tanks comprise an impurity and oil removing tank 1, a stabilizing tank 2 and a stripping tower feeding tank 3. The two water seal tanks comprise a positive pressure water seal tank 4 and a safe water seal tank 5. The two sets of impurity and oil removing devices comprise a tank-in-tank oil and impurity removing device 7 and a rotational flow oil removing device 8. The three-tank two-water-seal oil removing deodorization combination technology flow is one set of complete, refining and advanced acid water pre-treatment technology. The pre-treatment system can enable raw material water pre-treating processes and results to meet technology production requirements and safety and environment-friendly requirements. Therefore, safety and environment-friendly problems bothering people for many years in the aspects of pretreatment for the acid water of the oil refinery are solved thoroughly, and a gap in the aspect of acid water pretreatment technology standardization in our country is filled.

The invention provides a crankcase ventilation system and a gas engine and relates to the technical field of oil gas treatment of crankcases of gas engines. The crankcase ventilation system comprisesan oil gas separator, a gas return pipe, a balancing pipe, an oil return pipe, a pressure adjusting valve, an internal-combustion engine, a crankcase and a ventilation pipe, wherein the crankcase communicates to the oil gas separator through the ventilation pipe and an oil and gas mixture can be introduced into the oil gas separator; an oil gas separator box communicates to the crankcase through the oil return pipe, and separated oil can be introduced into the oil gas separator; the oil gas separator box communicates to the internal-combustion engine through the gas return pipe, and separatedmixed gas can be introduced into the internal-combustion engine; the pressure regulating valve is connected to the gas return pipe in series, the crankcase communicates to an upper cavity of a membrane of the pressure regulating valve through the balancing pipe, and the flow of the mixed gas introduced into the crankcase through the gas return pipe can be adjusted. The system alleviates the technical problems that the crankcase ventilation system in the prior art is large in oil consumption, emission is deteriorated, and the pressure of the crankcase cannot be controlled effectively while filtering the gas.

The invention discloses an air conditioning system and a control device and method thereof. The device comprises a first on-off valve and/or a second on-off valve, a temperature acquiring module and acontrol module. One end of the first on-off valve is connected with an air return opening of a compressor, and the other end of the first on-off valve is connected with a throttle element and a condenser. One end of the second on-off valve is connected with a middle air spray opening of the compressor, and the other end of the second on-off valve is connected with the throttle element and the condenser. The temperature acquiring module is used for acquiring the exhaust temperature of the compressor. The control module is used for controlling turning on or off of the first on-off valve and/orthe second on-off valve according to the exhaust temperature of the compressor in the process that the air conditioning system operates in a heating mode so that the exhaust temperature of the compressor can be within a preset temperature range. Thus, stability of the exhaust temperature of the system can be maintained, the requirement during system normal operating can be met, it can be guaranteed that the system reliably operates within the wide temperature range, and meanwhile the service life of the compressor can be prolonged.

The invention provides an engineering vehicle with an air conditioning system. The engineering vehicle comprises a chassis, a main engine, an auxiliary engine, a controller and the air conditioning system. The main engine, the air conditioning system and the auxiliary engine are all arranged on the chassis. The controller is connected with the main engine and the auxiliary engine. When the engineering vehicle is under the first working condition, the controller controls the main engine to work and provides power for the air conditioning system. When the engineering vehicle is under the second working condition, the controller controls the auxiliary engine to work and provides power for the air conditioning system. Compared with the prior art, the engineering vehicle is independent of power of the main engine when only the air conditioning system works, the main engine is prevented from working continuously for an ultra-long time, and the service life of the main engine is prolonged; and in addition, the auxiliary engine is adopted to supply power to the air conditioning system, and thus energy waste can be reduced.

The invention provides an auxiliary oil return control method of a multi-split air conditioner, an auxiliary oil return device of a compressor and the multi-split air conditioner. According to the auxiliary oil return control method of the multi-split air conditioner, the multi-split air conditioner comprises a compressor, an auxiliary oil return branch and a gas-liquid separator, wherein the auxiliary oil return branch is connected between the compressor and the gas-liquid separator, and the auxiliary oil return control method comprises the following steps that the multi-split air conditioner is controlled to start running; and the oil return quantity of the auxiliary oil return branch is adjusted according to different operation modes of the multi-split air conditioner. The technical problem that oil return is slow due to the fact that oil return is conducted only through an air return pipeline is solved.

The invention relates to the technical field of bearing life testing machines, in particular to an improved bearing life testing machine tool which comprises one or two tool units and a test shaft. Each tool unit comprises an end bushing, a working bearing, an isolation ring, an L-shaped stop block and a nut, wherein the inner ring of the working bearing sleeves the test shaft, the isolation ringsleeves the test shaft in a manner of being close to the working bearing, the inner ring of a to-be-tested bearing sleeves the test shaft, the inner side of the end face of the to-be-tested bearing abuts against the isolation ring, the outer ring of the to-be-tested bearing sleeves the end bushing, the nut is in threaded connection with one end of the test shaft, the end face of the nut presses the end face of the inner ring of the to-be-tested bearing, and the L-shaped stop block is arranged between the working bearing and the to-be-tested bearing. The axial positions of the working bearing and the to-be-tested bearing can be positioned, so that the problem that the internal space does not meet the requirement of the bushing for fixing the tested bearing when a certain type of testing machine tests a larger bearing is solved.

The invention belongs to the field of digital integrated circuit testing, and particularly relates to a DDR3 function testing platform based on a digital signal integrated circuit testing system EVA100. The DDR3 function testing platform comprises an EVA100 testing machine, an FPGA central control board and a DDR3 chip to be tested, wherein the FPGA central control board comprises an FPGA minimumsystem, a power distribution network, an LED circuit, a DDR3 circuit and an EVA control interface circuit. The FPGA minimum system comprises an FPGA chip, a clock circuit, a reset circuit and a configuration circuit. The FPGA chip comprises a signal synchronous processing module and a DDR3 measurement and control module, the signal synchronous processing module realizes data transceiving with an EVA100 testing machine through an EVA control interface circuit, performs synchronous analysis on data frames from the EVA100 testing machine, selects a testing operation mode according to an analysisresult, and the DDR3 measurement and control module is used for completing specified function testing operation, and finally synchronously feeding back a testing result to the EVA100 testing machine;and the DDR3 measurement and control module realizes testing flow control and function test of the DDR3 chip to be tested.

The invention belongs to the field of biomass fast pyrolysis liquefaction, particularly relates to a low energy consumption biomass liquefying device, and solves the problems of overhigh energy consumption and relatively low output proportion in the biomass pyrolysis liquefaction process. The device mainly comprises a feed bin heating jacket, a carbon powder burner, a multistage air preheater, a biomass pyrolysis reactor, a plate-type nitrogen preheater, a gas-solid cyclone separator, a fast condensing system, a metal filter and the like. According to the low energy consumption biomass liquefying device disclosed by the invention, the heating rate of biomass is greatly improved by use of rotating centrifugal force and a honeycomb channel; due to gas-liquid bubbling mixing, quick condensingis realized and the generation proportion of biomass oil is increased. Meanwhile, heat required by pyrolysis is mainly provided by burning biomass carbon particles, so that the self sufficiency of energy is realized; in addition, the heat of flue gas is recovered by multiple stages, so that heat loss of exhausted smoke is reduced, and heat efficiency of the whole set of device is improved. By adopting the low energy consumption biomass liquefying device disclosed by the invention, the oil yield of biomass fast pyrolysis liquefaction can be improved to 65 percent or above.

The invention relates to a heating protective structure for a gas insulated transformer in a low-temperature environment, belonging to the technical field of transformers. According to the technical scheme, the heating protective structure comprises a high-voltage cable box (1) and an instrument box (2), wherein a cable box heating protective device comprises an aluminum plate (3), a heat preservation layer (4), a heater I (5) and a temperature sensor (6), the aluminum plate is of a cylinder shape to be used as a supporting cylinder being arranged on the high-voltage cable box, silicon rubber is filled inside the cylindrical aluminum plate as the heat preservation layer, the heater is arranged in the most interior layer of the cylindrical aluminum plate, and the temperature sensor is pre-embedded in the most interior layer of the cylindrical aluminum plate; and an instrument box heating protective device comprises a heater II (7) and a temperature controller (8), and the heater II and the temperature controller are arranged in the instrument box. The heating protective structure has the positive effects that a temperature in the cable box is maintained above minus 20 DEG C, normal work of gas in the high-voltage cable box is guaranteed, according to the instrument box heating protective device, a working temperature in the instrument box is normal, and the requirement on normal operation of the gas insulated transformer in the low-temperature environment of minus 40 DEG C is satisfied.

The invention provides a throttle control lubricating system, and relates to the technical field of diesel engine lubricating systems. The system comprises an engine oil pump assembly, a filter assembly, a supercharger assembly, an engine oil cooler, an engine oil distribution block and a thermostat, the engine oil pump assembly is respectively communicated with a diesel engine oil pan and an oil supply pipe, the oil supply pipe is respectively communicated with the engine oil cooler and the thermostat, the engine oil cooler and the thermostat are respectively communicated with the engine oil distribution block through pipelines, and the engine oil distribution block is communicated with the filter assembly, the supercharger assembly, a main oil duct and a piston cooling nozzle through pipelines. By arranging the thermostat, the cooling water amount can be saved, the thermostat can adjust the oil temperature according to the actual situation, the converged oil temperature reaches the optimal value of the use state, multiple oil ways can be distributed according to needs under the coordination treatment of the engine oil distribution block, the pressure is kept stable, and the consumption of engine oil is effectively reduced on the basis that the normal operation requirement of a diesel engine is met.