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

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 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 deformationwhile 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 an auxiliary system controller for an electric automobile. The auxiliary system controller comprises a controller operation box; and a box cover is arranged on the controller operation box. The auxiliary system controller is characterized in that a data exchange terminal assembly is arranged at one side of the controller operation box of the auxiliary system controller for the electric automobile; and an auxiliary power supply interface is arranged at the other side corresponding to the side of the controller operation box. Further, an exchange data bus is arranged inthe controller operation box; and a communication end of the exchange data bus is connected with the data exchange terminal assembly. A control end of the exchange data bus is respectively connected with an electric steering control module, an electric air pump control module and an electric air conditioner control module. The normal operation need of each auxiliary system of a pure electric automobile can be met without using extra control assembly. In addition, the adopted module has a simple structure and is convenient for later maintenance. More importantly, the auxiliary system controller disclosed by the invention has better heat radiating performance and the capability of meeting the use requirement for different work conditions.

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 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 relates to oxygen pipeline system and anti-blasting device of an extra-large converter oxygen lance valve station and belongs to auxiliary devices for a converter oxygen lance valve station.The oxygen pipeline system and anti-blasting device are characterized by comprising: an oxygen dedicated stop valve I, an oxygen flame arrester I, an oxygen observation dedicated filter, an oxygen dedicated pneumatic cut-off valve I, an oxygen flame arrester II, an oxygen dedicated pneumatic regulating valve I, an oxygen flame arrester III, an oxygen dedicated flow orifice plate I, an oxygen dedicated stop valve II, an oxygen dedicated flow orifice plate II, an oxygen flame arrester IV, an oxygen dedicated pneumatic regulating valve II, an oxygen flame arrester V, an oxygen dedicated pneumatic cut-off valve II, an oxygen dedicated check valve and an oxygen flame arrester VI, which are connected in succession through a pipeline.The oxygen pipeline system and anti-blasting device are reasonable in structure and safe and reliable to use, the problem with safety in using oxygen in an extra-large converter oxygen lance is solved, and normal running of the converter oxygen lance valve station is guaranteed.

The invention provides an engineering vehicle with an air-conditioning system, comprising a chassis, a main engine, an auxiliary engine, a controller and an air-conditioning system, the main engine, the air-conditioning system and the auxiliary engine are all arranged on the chassis, and the controller is connected with the The main engine and the auxiliary engine are connected; in the first working condition, the controller controls the main engine to work and provides power to the air-conditioning system; in the second working condition, the controller controls the auxiliary engine to work and provides power to the air-conditioning system . Compared with the prior art, when only the air conditioning system is working, it does not need to rely on the power of the main engine, which prevents the main engine from working continuously for a long time and prolongs its service life. Additionally, energy wastage can be reduced by using an auxiliary engine to power the air conditioning system.

The invention relates to control equipment for a direct current low-voltage device of an extended range type electric vehicle. The control equipment comprises an equipment containing box, wherein a box cover is arranged on the equipment containing box; the control equipment is characterized in that a plurality of communication connectors are installed on the equipment containing box; a convenient plug-in control circuit board is arranged in the equipment containing box; a connecting slot is formed in the convenient plug-in control circuit board; a CAN (Controller Area Network) communication device, low-voltage control equipment and low-voltage power distribution equipment are communicated with each other and are respectively connected with the connecting slot; and a communication connector is connected with an auxiliary communication port of the low-voltage control equipment. Therefore, the requirements on normal operation of all low-voltage equipment of the extended range electric vehicle can be satisfied under conditions of pure electric mode and extended range mode without additional control components, and the safety of low-voltage components of the vehicle is furthest guaranteed. Moreover, the control equipment has a simple structure, better firmness level and heat dissipation effect.

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 canbe 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.