32results about How to "Reduce transportation and installation costs" patented technology

The invention discloses a tower-drum structure suitable for ocean engineering and an installation method thereof, which are used for solving the problems of high installation and construction operation difficulty and high transportation and installation costs existing in the conventional tower-drum structure. The tower-drum structure comprises a concrete gravity foundation pedestal, a foundation tray, a guide pipe and a tower drum, wherein an injection pipe is arranged inside the guide pipe; the tower drum is sleeved on the outer side of the guide pipe; and the bottom edge of the tower drum is arranged in a tower drum collar of the concrete gravity foundation pedestal. The tower-drum structure has a simple structure, and is convenient to install; the requirement on the bearing force of a natural soft soil foundation can be met by adjusting the size of the foundation tray; and overall water haulage is adopted, so that the installation cost can be reduced effectively. The invention is particularly suitable for tower-drum structures such as sea areas with large water depths, wind generator sets and tide generator sets on soft soil foundations, and the like.

The invention provides a linear driving oil pumping unit. The inside of a pipe string at the upper end of a base is in transitional fit connection with a guide sleeve; an inner hole of the guide sleeve is connected with a rack in a matched manner; involute teeth are formed on one side of the rack; the upper part of the involute teeth of the rack is meshed with a gear, and another gear at the lower part is meshed with the involute teeth of the rack; the upperpart of the gear is connected with a generator, and the lower part of the gear is connected with a motor; an inner hole of the rack is in clearance fit with an oil pumping rod; the upper part of the oil pumping rod extends out of the rack part and is fixedly connected with an oil pumping rod clamping hoop; the lower part of the oil pumping rod extends out of the lower end of the pipe column and the lower end of a base. By fit of the generator and the motor, the potential energy caused by descending of the oil pumping rod is effectively absorbed to generate power, so that the descending potential energy of the oil pumping rod can be used to the maximum extent, the efficiency is improved, and power is saved; by the linear driving oil pumping unit with low-inertia design, higher efficiency can be achieved, transportation and mounting are facilitated, and the transportation and mounting costs are low; when the linear driving oil pumping unit replaces an existing discharging and mining oil pumping unit, under-well work is not needed, direct replacement can be realized, and convenience and quickness can be achieved.

A segmental tube section structure having a length and a circumference, the segmental tube section structure including a plurality of tube segments extending the length in a longitudinal direction of the segmental tube section structure and extending in a circumferential direction of the segmental tube section structure, wherein each tube segment of the plurality of tube segments extends in the circumferential direction to span an equal arc of the circumference of the segmental tube section, and wherein each of the plurality of tube segments are connected to adjacent tube segments of the plurality of tube segments in the circumferential direction to form the segmental tube section structure.

A boiler system and methods for heating a fluid are disclosed, in particular for heating water for producing steam. The boiler comprises an economizer module integrated on the top of a furnace, and is in communication with the furnace to receive heat and/or hot combustion gases therefrom. The economizer comprises tubes receiving the fluid, such as feedwater, to be pre-heated and providing it to the furnace comprising a combustion chamber producing heat and hot combustion gases. The fluid is pre-heated by circulating first through the pre-heating tube assembly of the economizer module before entering the furnace module where the fluid is further heated by the combustion chamber. Since the economizer is located on the furnace module, the boiler does not have a larger footprint compared to a regular boiler system without economizer. Due to the total integration of the economizer with the furnace, the boiler system has improved energy efficiency.

The invention relates to the technical field of the oil extraction project, and particularly belongs to a double-well mutually balanced type direct drive oil pumping machine control system and an oilpumping device used in the oil field. The problems that a tower type direct drive oil pumping machine is complex in structure, short in integral service life and poor in safety, an oil pumping machinefoundation needs to be prefabricated, and reverse power generation cannot be effectively utilized are solved. The oil pumping device is composed of one direct drive oil pumping machine control system(1) and two direct drive oil pumping machines (2). The double-well mutually balanced type direct drive oil pumping machine control system and the oil pumping device have the advantages that the structure is simple, few transmission components are adopted, transportation and installation are easy, oil pumping machine foundation prefabrication is not needed, the reverse power generation in the oilpumping machine running process can be effectively utilized, the running life of the system can be prolonged, energy consumption is reduced, equipment reliability is high, and the running cost is low.

The present invention relates to a free-sliding seabed mudmat foundation, which belongs to the fields of offshore and ocean engineering. The mudmat comprises a base foundation, an upper foundation, and a cover plate. The base foundation sits on the seabed to support dead weights of the mudmat itself and the subsea production system fixed on the mudmat. The upper foundation, with a plurality of universal rolling ball bearing being attached to the bottom, can slide on the base foundation when it is subjected to a horizontal push force generated by the pipeline during operation. Therefore, the axial load on the pipeline during operation due to heating and pressurization is released and the buckling failure risk is then reduced. The mudmat disclosed has smaller size and lighter weight, which is beneficial in reducing fabrication costs and reducing requirements for cranes on the pipeline laying vessel.

The invention discloses an integrated rainfall station, which comprises a rain gauge. A plurality of flexible amorphous silicon units are uniformly distributed in the circumferential direction of theouter surface of the rain gauge, a rain receiving port is arranged at the top of the rain gauge, and the inside of the rain gauge is provided with a steel wire filter screen, a receiving funnel and atipping bucket type rain gauge from top to bottom. The tipping bucket type rain gauge includes a base and a water injection funnel. The bottom of the rain gauge is an open structure, and the peripheryof the base of the tipping bucket type rain gauge and the periphery of the inner side wall of the bottom of the rain gauge are fixedly connected, the upper surface of the base is provided with a waterproof control box, the lower surface of the base is provided with a communication interface and a switch, and the bottom of the rain gauge is fixedly provided with an antenna. The integrated rainfallstation is high in integration degree, simple in structure, convenient in installation and maintenance. The adopted flexible amorphous silicon units are uniformly fixed on the outer surface of the rain gauge by 360 degrees, ensuring the continuity of charging, and the vertical installation mode can effectively reduce the accumulation of dust and debris, prevent the occurrence of occlusion, and improve the stability of long-term power supply.

The invention discloses a large-power matrix combined wind generator, relating to the technical field of wind power generation, solving the technical problems of low efficiency, low wind resistance, too high complete machine cost and too high transportation and installation costs. The wind generator comprises a tower, a stand installed at the top end of the tower, a wind power receiver rotatably installed between upper and lower beams of at least a layer in the vertical direction on the stand, an accelerating gearbox installed at an external end of the upper beam of the stand and connected with the wind power receiver via a connection shaft, a generator installed on the accelerating gearbox, a manual steel rope brake installed between the side of the lower beam of the stand and the wind power receiver, an electrical brake, a shutdown brake and a controller power wind generator installed at the top of the stand. The large-power matrix combined wind generator has characteristics of normally generating power with winds of different strengths, high efficiency, large rated power, automatic deformation when a hurricane comes, simple structure, low transportation and installation costs, convenient construction and the like.

The invention provides a jacket transportation and installation system. The jacket transportation and installation system comprises a barge body, a pitching luffing system, a steel strand, a main arm jacking system, a jacket body, a transverse sliding system and a main pitching arm. According to the invention,the barge body, the main pitching arm and the pitching luffing system are arranged, the main pitching arm and the pitching luffing system are installed on the specially-made barge body, the size of the main pitching arm is selected according to the size of a jacket body, and the pitching luffing system is used for balancing the traction force of the jacket body on the main pitching arm, so the stability of the installation system is improved, requirements on equipment are not high, rapid installation of the jacket body is facilitated, and the transportation and installation cost of the jacket body is reduced; and due to the arrangement of the transverse sliding system, during use of the system, a sliding assembly moves in a sliding way, so transverse movement of the jacket body is achieved, the installation position of the jacket body is convenient to adjust, and the installation efficiency of the jacket body is improved.

The invention discloses a multi-tackle arrangement method for a steering field, comprising the following steps: step 1, determining the position of the steering field according to the positions of a traction field and a tension field, and measuring a steering angle alpha; step 2, determining the number of tackles in the steering field according to the steering angle alpha; and step 3, determiningthe positional relationship of each tackle according to the steering angle alpha and the number of tackles. After the steering angle is determined, the number of tackles can be quickly determined andthe relative position of each tackle can be further determined, so that when the steering field is arranged, only a small number of individual tackles need to be carried, which significantly reduces the transportation and installation costs. The steering field can be arranged flexibly and normatively according to the actual steering angle. On the premise of meeting the requirements of special terrains in mountainous areas, the envelop angles of the tackles are equal, and the tackles are stressed uniformly, so that the operational safety of the steering field is improved, and the tackles and cables are effectively protected.