123 results about "Tower" patented technology

A one-step process for preparing both cyanuramide and the ammonium hydrogen carbonate/sodium carbonate and ammonium chloride features that the synthetic amonia is directly delivered to the cyanuramide preparing step, where it is preheated to 350-400 deg.C and used as gas carrier of fluidized bed, and the gas from liquid urea washing tower is divdied into two channels, one returning back to crystallizer and used as cold gas and another being directly used to prepare ammonium hydrogen carbonate/sodium carbonate and ammonium chloiride. Its advantages are low cost and high catalytic efficiency.

The invention discloses an electric transmission line monitoring communication system based on a super-distance wireless optical network. The system comprises a wireless private network communication sub-network or a wireless private network and optical fiber mixed communication sub-network, a super-distance optical fiber communication backbone network, a monitoring primary station and a system network manager. The super-distance wireless optical network is characterized in that the wireless private network and optical fiber mixed communication sub-network wirelessly converges monitoring nodes of a plurality of nearby towers in a transmission line, an OPGW (optical fiber composite overhead ground wire) optical fiber communication system realizes uplink of the multiple nodes wirelessly converged, the optical fiber convergence nodes are connected to a transformer substation through an ADSS (all-dielectric self-supporting optic fiber cable), the wireless communication sub-network converges nodes of a plurality of nearby towers from node to multiple nodes, convergence signals are transmitted to the transformer substation by a wireless node-to-node manner, and data transmission between the transformer substation and a power company headquarter is performed through the existing data networks.

The invention relates to a method for degrading malodorous gas by coupling a biotrickling filter with dielectric barrier discharge and is used for mainly solving the problem in the prior art that total hydrocarbon cannot be effectively degraded when malodorous components in malodorous waste gas are effectively removed. By adopting the method for degrading the malodorous gas by coupling the biotrickling filter with the dielectric barrier discharge, the malodorous gas enters a buffering tank after entering a water-membrane separator to remove one part of water; after the waste gas flowing out of the buffering tank is monitored by a total hydrocarbon analyzer, the detected waste gas enters dielectric barrier discharge plasma equipment; the waste gas discharged from the dielectric barrier discharge plasma equipment is treated by an ozone analyzer to remove ozone, and then enters at least one biotrickling tower; the waste gas treated by the biotrickling tower is discharged from the biotrickling tower. By adopting the technical scheme, the problems are solved and the method can be used for degrading the malodorous gas.

The invention discloses a pole-side conductor sag observation method based on a total station instrument, which is suitable for performing conductor sag observation at the external side of pole span of an electric transmission line with the total station instrument. The total station instrument is disposed at the external side of the pole span to respectively detect the altitude differences of a conductor wire at mount points on a first pole tower and a second pole tower by means of a prism-free function; by means of a planar triangle formed by the observation point and projections of the mount points on the two pole towers, first planar distance and second planar distance are measured; according to geometric principles, projective triangle interior angles and pole span length are calculated and further the position of midpoint of the pole span is determined; the length from the observation point to the midpoint of the pole span is calculated and is multiplied by the tangent value of elevation angle of the total station instrument to calculate the altitude difference of the conductor wire at the midpoint of the pole span; the average value of the first and the second altitude differences minus the altitude difference of the conductor wire at the midpoint of the pole span is finally calculated to obtain the conductor sag. Compared with a conventional conductor sag measurement method, the method allows optional site selection, has high precision and is simple in operations, and can be used in the fields of ultrahigh-voltage transmission line construction, overhead transmission line engineering construction, and measurement and control technologies and instruments and the like.

The invention discloses a method for separating low-carbon olefin gas. The method is used for overcoming the disadvantages in existing low-carbon olefin separation methods that cryogenic separation is complicated in process flow, large in investment and the like. The method comprises the following steps: the low-carbon olefin gas enters a deethanization tower after the low-carbon olefin gas is compressed and dried, a tower bottom material flow of the deethanization tower is conveyed to a depropanization and propylene distillation system so as to separate polymer-grade propylene products, and a tower top material flow of the deethanization tower enters a demethanization tower; and a tower bottom material flow of the demethanization tower is conveyed to an acetylene converter and an ethylene distillation tower, a tower top material flow of the demethanization tower is conveyed to an absorption tower and is in contact with an absorbent, a tower top gaseous-phase material flow of the absorption tower is output or enters a fuel gas system, and a tower bottom material flow of the absorption tower is conveyed to the deethanization tower. The method disclosed by the invention has the advantage that the cryogenic separation is simple in process flow and small in investment and can be used for producing target products, such as polymer-grade ethylene, polymer-grade propylene and the like.

The present invention relates to a transformer (100) for the transfer of electrical power from a nacelle (250) of a horizontal-axis wind turbine to a turbine tower (350) of said wind turbine whereby the nacelle (250) is in revolute attachment to the tower (350), comprising: a primary winding (200) adapted for attachment to the nacelle (250), and a secondary winding (300) adapted for attachment to the turbine tower (350), which windings (200, 300) are in revolute alignment with each other, and configured for transfer of electrical power by induction from the primary winding (200) to the secondary winding (300). It also relates to a method for assembly or disassembly of a wind turbine.

A solar powered LED portable light tower. A solar powered LED portable light tower may comprise: one or more photovoltaic modules, an adjustable masthead, one or more lamps, one or more batteries, an inverter, a controller, and a base. The lamps may be light emitting diodes. The controller may be configured to turn on and off and dim said one or more lamps, and preferably comprises a motion sensor. The portable light tower may also comprise a concrete ballast, fork lift option, and/or a trailer option.

The invention discloses a hyperbolic bridge pier and hyperbolic bridge pier and tower. The bridge pier comprises a bridge pier lower structure, a bridge pier bifurcation structure and a longitudinal linking structure, wherein, the bifurcation starting point of the bridge pier bifurcation structure is fixed on the top of the bridge pier lower structure; two bifurcation components of the bifurcation structure are fixed on the top of the bridge pier by the longitudinal linking structure; and the projections of the outer contour line of the bridge pier along the vertical direction on the bridge longitudinal and lateral directions are hyperbolic. The bridge pier and tower comprise the above bridge pier and a bridge tower, wherein the bridge tower comprises a bright tower bifurcation structure; the middle hollow part of the bright tower bifurcation structure forms a bright hole penetrated by the girder of the bright; the four bifurcation components of the bridge tower bifurcation structure are hinged or fixed to the above two bifurcation components of the bifurcation structure to form a quadrilateral with an upward hollow part along the bridge. The hyperbolic bridge pier and hyperbolic bridge pier and tower have the advantages of strong overall rigidity, good stability, convenient construction, wide application range, attractive appearance and good economy.

The invention discloses a thoracolumbar spine and cervical vertebra physiotherapy integrated machine. The thoracolumbar spine and cervical vertebra physiotherapy integrated machine comprises a treatment table board, a steering arm, a control tower and a pulley lifting device, wherein the treatment table board comprises a head-side half table board part and a foot-side half table board part, and at least one of the head-side half table board part and a foot-side half table board part is matched with a support slide rail in a sliding manner; the support slide rail is mounted on a lifting support in a pivoting manner around a horizontal axis and/or a vertical axis; the head-side half table board part is provided with a headrest module; the steering arm is pivotally mounted in the middle position, along the width direction, of one end of the support slide rail, and is provided with a patient table board positioning belt locking device and at least two pulleys, and the positions of the patient table board positioning belt locking device and the at least two pulleys are adjustable in position along the longitudinal direction of the steering arm; the control tower is communicated with a computer control device performing physiotherapy according to a treatment curve, is internally provided with a drive device which generates pull force according to the treatment curve information sent by the control device; and the pulley lifting device changes the direction of the pull force generated by the drive device and than acts the pull force on the spine of a patient. The thoracolumbar spine and cervical vertebra physiotherapy integrated machine has two purposes, and thus the financial burden of the patient is alleviated.

The invention relates to a system conversion method of first cable later beam construction of a self-anchored suspension bridge. The method includes: building the edge beams and bridge towers of the self-anchored suspension bridge, mounting temporary bridge tower anchoring devices, setting up a main cable to form the main beam sections of a main beam, and determining the position of a final closure; evenly arranging a plurality of bridge tower jacks in each temporary bridge tower anchoring device, and evenly arranged a plurality of closure jacks at the final closure starting the closure jacks and the bridge tower jacks, and controlling the actual total jacking force of the closure jacks and the bridge tower jacks to be equal to the horizontal pull force of the main cable to the edge beams; using a hierarchical symmetrical unloading manner to regulate the gap distance of the closure, and locking the closure jacks and the bridge tower jacks until the gap distance satisfies the welding requirement so as to complete the system conversion of the first cable later beam construction of the self-anchored suspension bridge. The method has the advantages that the temporary bridge tower anchoring devices can be demounted safely, stable conversion of the horizontal force from the temporary bridge tower anchoring devices to the closure gap regulating device can be achieved, and closure gap regulation can be performed smoothly.

The invention relates to a safety belt and discloses a fall protection safety belt for pole and tower operation. The fall protection safety belt for the pole and tower operation comprises a wrist locking belt and a wrist locking belt, a pole surrounding belt, a fall protection rope, a connection element, a safety buckle, a buffering device, two shoulder belts, two chest belts and at least two hip protection belts; the wrist locking belt is connected to the wrist protection belt; one end the pole surrounding belt is connected with the wrist protection belt; the other end of the pole surrounding belt is connected with hanging ring locking buckles of a wrist belt through the safety buckle which is arranged on the pole surrounding belt; one ends of the at least two hip protection belts are respectively connected with the middle of the wrist protection belt; the other ends of the at least two hip protection belts are respectively connected with the connection element in a detachment mode; one ends of the two chest belts are respectively connected with the two shoulder belts; and the fall protection rope is connected onto the connection element. The fall protection safety belt for the pole and tower operation is used for working aloft and solves the problems that the existing safety belt is simple in structure, single in function and cannot prevent operating personnel from falling off when the operating personnel is slipped.

The invention discloses an annular coating granule chemical fertilizer pelletizing tower which comprises a collection conveying device, a screening device, an atomization spraying disc as well as a collection cone, wherein the screening device is arranged at a front conveying end or a rear conveying end of the collection conveying device; returned material granules are dropped down from the upperend of the collection cone and fall down along the circumferential side of an annular inverted cone in an annular curtain manner; the lower part of the annular inverted cone is directly facing the atomization spraying disc; the collection cone, the annular inverted cone and the atomization spraying disc are coaxially arranged; and the circumferential diameter of the atomization spraying disc is smaller than the diameter of the annular curtain. As a rectangular ejection hole is formed in the atomization spraying disc, and the atomization spraying disc can be rotated at a high speed, blocking isnot easily caused; due to annular spraying ejected from the atomization spraying disc, together with the returned material granules which fall down along the circumferential side of the annular inverted cone in the annular curtain manner, the sizes of the granules can be continuously increased till granule sizes meet requirements and a finished product processing process is implemented, and granules which do not meet sizes are repeatedly circulated in the pelletizing tower till sizes of finished product granules are met.

An integrated apparatus for separating a mixture of carbon dioxide and at least one other gas and for separating air by air distillation is provided. The apparatus includes a CO₂ separation unit configured to separate the mixture, an air separation unit configured to separate air by cryogenic distillation, a water cooling tower that operates by direct contact, a line for sending water to the top of the tower, a line for sending at least one portion of the nitrogen-enriched gas stream to a lower level of the tower, a cooled water line for withdrawing cooled water from the tower and means for cooling the air upstream of the air separation unit, the cooled water line being connected to means for cooling the air upstream of the air separation unit and to the inlet and/or to the outlet of the unit for separating the gaseous mixture.

The invention discloses a tower-top-load-based independent variable-pitch control method for a wind generating set. The method comprises steps as follows: firstly, sensors are attached to the top endof a tower, the tower top bending moment Mx, the tower top bending moment My and the tower top bending moment Mz are directly collected through the sensors, and then the D-axis load and the Q-axis load are calculated according to the collected tower top loads, that is, the D-Q axis load is calculated; secondarily, the D-axis load and the Q-axis load are output to be D-Q axis variable-pitch instructions through filters, PI controllers and amplitude limitation; finally, the D-Q axis variable-pitch instructions are subjected to D-Q axis reverse transformation, the variable-pitch instruction of each paddle is obtained, and the variable-pitch instructions are stacked on a unified variable-pitch instruction. According to the method, the tower top loads are used as feedback quantities for independent variable-pitch control, and three groups of load sensors are reduced into one group, so that the reliability is improved while the cost is remarkably reduced.

A wind turbine tower which includes a number of sections, connected by bolted joints is disclosed. A bolted joint includes at least one connection of the bearing type and at least one connection of the slip resistant at serviceability type. In one aspect, the bearing type connection includes at least one non prestressed bolt and/or the connection of the slip resistant at serviceability type includes at least one prestressed bolt.

The invention provides a device for flue gas desulfurization through a soda ash method. The device is characterized in that the device comprises a pretreating system used for dissolving SO2 in liquid-phase water, a desulfurization tower, a technological water delivering system, a sodium carbonate preparing system used for providing alkali liquor, and an oxidation cycle system used for oxidizing sodium sulfite; a chimney is arranged at the top of the desulfurization tower, a demister is arranged on the lower part of the chimney, the desulfurization tower is connected with the technological water delivering system and the sodium carbonate preparing system, a tower kettle side wall gas-liquid inlet is formed in the tower kettle position of the desulfurization tower, a washing liquid outlet isformed in the bottom of the desulfurization tower, and the washing liquid outlet is connected with the tower kettle side wall gas-liquid inlet through the oxidation cycle system; and the pretreatingsystem is a Venturi pretreating system or an empty tower spraying pretreating system. According to the device, the alkali using cost is obviously lowered, safety and stability of a desulfurization technique are achieved, economical efficiency is achieved, and the device is suitable for application and promotion.

The invention provides an electron-grade hydrochloric acid production method. The electron-grade hydrochloric acid production method sequentially comprises the following steps that 1, synthesized hydrogen chloride gas enters an adsorption tower so as to remove free chlorine; 2, a reagent-grade hydrochloric acid solvent is adopted to enter a washing tower from the inlet in the upper part of the washing tower to wash the adsorbed hydrogen chloride gas so that soluble impurities can be removed; 3, the washed hydrogen chloride gas passes through first condensation and secondary condensation and enters a demister so as to remove mist, so that high-purity hydrogen chloride gas is obtained; 4, high-purity hydrogen chloride is absorbed by a first and a secondary falling film absorber and a tail gas absorbing tower, and then passes through a hyrochloric acid cooler, so that a finished product is obtained; 5, absorbant water adopts hyperpure water; and 6, the finished product obtained in the step 4 enters a finished product storage tank, and is ultrafiltered to remove particulate impurities, so that electronic hydrochloric acid is obtained. The electronic hydrochloric acid production methodhas the characteristics of simple technology, continuous production, good stability,simple equipment, and the like.

The invention relates to an automatically adjustable stroke yoke plate for electric power lines in a mining influence region, belongs to the technical field of electric power system equipment, and particularly relates to equipment used by straight line pole towers in the mining influencing region and a poor geological condition region for the electric power lines. In order to solve the technical problems, the invention provides a device capable of automatically regulating the suspension string offset. The yoke plate has the technical scheme that the automatically adjustable stroke yoke plate for electric power lines in the mining influence region is characterized in that the upper part of a yoke plate body is provided with a dimension identifier, the lower part of the yoke plate body is provided with a pulley groove used for containing a pulley, the top of a specially made connecting hardware is connected with the pulley through a connecting screw bolt, in addition, the specially made connecting hardware is positioned under the yoke plate body, the bottom of the specially made connecting hardware is connected with a connecting hardware, the middle part of the dimension identifier of the yoke plate body is provided with a dimension identifier indicating device, and the top of the specially made connecting hardware is provided with a specially made connecting hardware identifier indicating device. The yoke plate is applied to straight line pole towers in the mining influencing region and the poor geological condition region for the electric power lines.

The invention discloses a purification method of 1,2-propylene amide. One from dihydric alcohol having 2-5 carbon atoms and triatomic alcohol having 2-5 carbon atoms or one from alcohol amines having 2-5 carbon atoms or dimethylsulfoxide or N-methyl-2-pyrrolidone is used as an extraction agent. A crude product of the 1,2-propylene amide and the extraction agent enter an extraction tower for extraction, then water are collected at tower top of the extraction tower. Kettle bottom material of the extraction tower enters a rectifying tower for rectification, then the 1,2-propylene amide is collected at tower top of the rectifying tower. Through use of the method, the 1,2-propylene amide and the water are separated in the process of preparation. Through use of the extraction agent, height of the tower and reflux ratio can be decreased and separation efficiency is enhanced. The extraction agent can be reused through simple separation, so that the energy consumption is greatly reduced and the production cost is also reduced. The method has the advantage of high separation efficiency, high purity of purification products, colorless and transparent products, and recycling extraction agent.

The invention provides a flue gas desulfurization tower filter with a debris removal reminding function. The flue gas desulfurization tower filter comprises a box, an inlet pipe, an outlet pipe and a built-in filter screen. The inlet pipe and the outlet pipe are arranged on the two opposite side faces of the box respectively and communicated with the interior of the box, and the built-in filter screen is arranged in the box in the manner of being parallel to the end opening face of the inlet pipe and divides the interior of the box into two cavities. An inlet pipe valve is connected to the end opening, away from the box, of the inlet pipe. A fluid sensor is arranged in the cavity, close to the inlet pipe valve, of the box, a processor is connected to the fluid sensor through a line, and a warning light is connected to the processor through a line. Compared with the prior art, the flue gas desulfurization tower filter can remind operating personnel to carry out debris removal in time, it is avoided that due to serious debris blockage, the production efficiency of a follow-up production process is low, and efficient and stable operation of the whole production process is ensured.