36results about How to "Improve absorptive capacity" patented technology

The invention relates to an optical storage combination combined-grid power generation coordination control method, which is characterized by comprising contents including photovoltaic system comprehensive control strategies, energy storage system comprehensive control strategies, optical storage combination system active power coordination control modes, optical storage combination system reactive power coordination control modes and the like, the contents can be utilized for analyzing the optical storage combination power generation coordination control, the effectiveness of the optical storage combination power generation coordination control can be fully reflected, further, the absorptive capacity of a power grid on new energy sources is improved, and the advantages of high adaptability, high practical application values and the like are realized. The optical storage combination combined-grid power generation coordination control method can be widely applied to the aspects of optical storage combination power generation system modeling simulation, combined-grid operation characteristic analysis, power grid interaction mechanism development and the like.

The invention discloses a stiffened joint-crossing plate based bridge deck jointless expansion device and a construction method thereof. The expansion device comprises a prefabricated expansion assembly and an expansion joint filler filled layer filled above the prefabricated expansion assembly, wherein the prefabricated expansion assembly is arranged on an expansion joint reserved between every two adjacent girder segments, and a sliding layer is laid on a girder exposed segment of each girder segment; the prefabricated expansion assembly comprises a stiffened joint-crossing plate and two wave-shaped expansion plates. A construction method for an expansion device to be repaired comprises the steps of cleaning an original bridge expansion device, constructing reserved mounting grooves, constructing the sliding layers, carrying out field assembly and mounting on the prefabricated expansion assembly and constructing the expansion joint filler filled layer. A construction method for an expansion device to be constructed comprises the steps of prefabricating the prefabricated expansion assembly, carrying out field assembly on the prefabricated expansion assembly, constructing the sliding layers, mounting the prefabricated expansion assembly and constructing bridge deck pavement structures and the expansion joint filler filled layer. The stiffened joint-crossing plate based bridge deck jointless expansion device and the construction method thereof have the advantages that the design is reasonable, the construction is convenient, the use effect is good, and multiple problems of the existing expansion devices can be solved.

The invention relates to an ultrahigh basicity low aluminum fluorine-free refining slag and a preparation method and a use method thereof, belonging to the technical field of steelmaking and refining.The refining slag comprises the following chemical compositions by weight percent: 85-95% of CaO, 2-10% of B2O3, 2-10% of MgO, 1-10% of Al2O3 and less than 5% impurities, wherein the content of harmful impurities such as sulfur, phosphorus and the like is as low as possible. The refining slag is prepared by using industrial reagents, namely active lime, boron anhydride, magnesia and aluminium ashto prepare, premelting at 1350-1450 DEG C, cooling, crushing to 2-10mm and performing moisture proof packaging. The slag series can be used for the refining and slag forming of LF, RH and CAS and therefining slag is added in steel ladle in the process of argon blowing after the molten steel preliminary deoxidation and the reduction treatment of the residue of steel ladle. The refining slag of the invention has strong desulphurizing and dephosphorizing abilities and no pollution, the slag inclusion generated through absorption and deoxidation has higher ability, the deoxidation effect of steel is improved, the spreadability is good, the suction and oxidation of the molten steel are reduced, the refining devices do not adhere to slag, the preparation process is simple, and the product is easy to store and use.

The invention discloses a bridge seamless telescopic device and a construction method of the device. The bridge seamless telescopic device comprises a main beam span telescopic device and a bridge abutment telescopic device, wherein the main beam span telescopic device comprises a first prefabricated telescopic component and a first telescopic joint filler filling layer; the bridge abutment telescopic device comprises a second prefabricated telescopic component and a second telescopic joint filler filling layer; the first prefabricated telescopic component and the second prefabricated telescopic component are formed by reinforced joint-crossing plates and wave-shaped telescopic plates. A construction method of a telescopic device to be repaired comprises the following steps: cleaning an original bridge telescopic device, constructing a preserved mounting slot, constructing a sliding layer, assembling and mounting prefabricated telescopic components, and constructing telescopic joint filler filling layers. A construction method of a telescopic device to be constructed comprises the following steps: prefabricating and processing prefabricated telescopic components, assembling the prefabricated telescopic components on site, constructing a sliding layer, mounting prefabricated telescopic components, paving a structure and constructing telescopic joint filler filling layers. The bridge seamless telescopic device is reasonable in design, convenient to construct and high in using effect, and can be used for solving various problems of the existing telescopic device.

The invention discloses an abutment hidden expansion device and a construction method thereof. The expansion device comprises a prefabricated expansion component arranged on an abutment expansion joint, and an expansion joint filler filling layer filled in the upper side of the prefabricated expansion component, wherein a bridge deck pavement structure is paved on a main beam; a slide layer is paved on an exposed section of the main beam; a road surface pavement layer is arranged at the outer side of the upper part of an abutment; the prefabricated expansion component comprises a reinforced joint plate and a waveform expansion plate; a construction method of an expansion device to be repaired comprises the steps of cleaning of an original bridge expansion device, construction of a reversed mounting groove, construction of the slide layer, field assembly and installation of the prefabricated expansion component and construction of the expansion joint filler filling layer; and a construction method of an expansion device to be constructed comprises the steps of prefabrication of the prefabricated expansion component, field assembly of the prefabricated expansion component, construction of the slide layer, installation of the prefabricated expansion component and construction of the bridge deck pavement structure and the expansion joint filler filling layer. The abutment hidden expansion device and the construction method thereof have the advantages of reasonable design, convenience for construction and good use effect, and can solve multiple problems in traditional expansion devices.

The invention relates to the technical field of sponge city construction, in particular to a sponge city water circulation system, and aims to overcome the defects that in the process of collecting and recycling city rainfall in the prior art, when the rainfall is large, a drainage system difficultly drains water normally, and city waterlogging is likely to be caused. Wherein the road surface layer is arranged on an urban surface road, the permeable pipeline is used for collecting rainwater permeated into the road surface layer, the rainwater overflow well is used for slowing down the rainwater discharge rate, and the drainage pipeline is used for collecting rainwater and conveying and discharging the rainwater; two symmetrically-arranged water passing holes are formed in the inner side wall of the rainwater overflow well; by means of the sponge city drainage system, the drainage capacity of the sponge city is enhanced, the possibility of urban inland inundation is reduced, and then the stability of the sponge city is improved.

The invention discloses a corrugated steel plate built-in seamless expansion device between a girder and a bridge abutment and a construction method of the seamless expansion device. The expansion device comprises prefabricated steel plate elements distributed on a bridge abutment expansion joint and expansion joint filler packing layer filled above the prefabricated steel plate elements; the prefabricated steel plate elements comprise straight steel plates, corrugated steel plates and a plurality of arched reinforcing steel bars; a plurality of shear pins are fixed on the corrugated steel plates; a sliding layer is paved on the girder exposed section; the construction method of the to-be-repaired expansion device comprises the following steps: cleaning the original bridge expansion device, constructing preserved mounting grooves, constructing the girder sliding layer, assembling the prefabricated steel plate elements in the field, and mounting and constructing the expansion joint filler packing layer; the construction method of the to-be-constructed expansion device comprises the following steps: prefabricating and processing the prefabricated steel plate elements, assembling the prefabricated steel plate elements in the field, constructing the girder sliding layer, mounting the prefabricated steel plate elements, and constructing the bridge deck pavement structure and the expansion joint filler packing layer. The corrugated steel plate built-in seamless expansion device disclosed by the invention is reasonable in design, convenient to construct, and good in use effect, and can solve a plurality of problems in the existing expansion device.

The invention provides a disposable paint mist gathering device and a dry type venturi paint spray system employing the same. The lower portion of the paint mist gathering device is provided with a paint collection chamber, the middle portion is provided with a paint mist gathering chamber, and the upper portion is provided with a sheet-like filter layer. An air inlet of the device is arranged on the upper portion on one side of the paint collection chamber, and an air outlet is arranged at the top of the paint mist gathering device. The dry type venturi paint spray system is characterized in that the disposable paint mist gathering device, as a separate part, is installed in a paint mist gathering device installing chamber. The paint mist gathering device installing chamber is arranged on the outside of an air diversion chamber. The paint mist gathering device installing chamber communicates with the air diversion chamber via a venturi channel; the venturi channel extends into the paint mist gathering device installed in place and faces the bottom of the paint mist gathering device. Compared with the prior art, the paint spray system is stable in performance, convenient to operate, great in paint mist gathering and accommodating capability, and is energy-saving and environmentally-friendly.

The invention provides a light-hydrogen hybrid power generation system power coordinated control method, which comprises the following steps: establishment of a photovoltaic power generation unit mathematic model, establishment of a proton exchange membrane fuel cell unit mathematic model, establishment of an alkali-type electrolytic cell unit mathematic model, establishment of a supercapacitor unit mathematic model, establishment of a hydrogen storage tank unit mathematic model, and power coordinated control of a light-hydrogen hybrid power generation system. By carrying out analysis on power coordinated control of the light-hydrogen hybrid power generation system through the method, effectiveness of the power coordinated control of the light-hydrogen hybrid power generation system is proved fully; compared with a conventional power coordinated control method, the power coordinated control method in the invention, on the basis of analysis of the features of the solar photovoltaic power generation unit mathematic model and hydrogen storage tank unit mathematic model, and with a slow dynamic response characteristic of a hydrogen energy storage device being taken into consideration, adopts a supercapacitor, the transient performance of which is good, to compensate unbalance power in time, thereby improving new energy absorption capacity of a power grid; and the method has the advantages of being scientific and reasonable, and high in practical application values and the like.

The invention relates to composite filter paper for a filter and a preparation method of the composite filter paper. The composite filter paper comprises an ash accommodating layer, a filtration layerand a refined filtration layer, wherein the ash accommodating layer is prepared from raw materials as follows: corn bio-based fiber, polycarbodiimide, organic flexible fiber and negative electricitymodified wormwood powder mid-fiber; the filtration layer is prepared from raw materials as follows: alga carbon fiber, ethyl cellulose, aluminium oxide, hexadecyl trimethyl ammonium bromide and positive electricity modified wormwood powder short fiber; the refined filtration layer is an alkali-free glass fiber layer with acrylic copolymers distributed on the surface. The composite filter paper hashigher air permeability and ash accommodating rate, good water resistance and weather fastness and long service life and is stable at high temperature.

The invention relates to a dry type venturi paint mist trapping device. The device comprises a shell, wherein multiple rows of paint mist filtration and interception units arrayed in a cross manner are arranged in the shell, a gap is left between each two adjacent paint mist filtration and interception units in the same row, and the gap and the surfaces of the paint mist filtration and interception units at two sides form an air flowing channel of a venturi structure. The paint mist trapping device filters and intercepts paint particles in a filtration manner at the early stage and in a filtration and impact force co-existing manner at the late stage. By virtue of the venturi structure, the amount of paint particles intercepted and captured through the impact force can be greatly increased. Besides, the invention further relates to a dry type paint spraying system with the dry type venturi paint mist trapping device. The paint mist trapping device is arranged at the exhaust opening of the paint spraying system, so as to separate paint mist in the air. Compared with the prior art, the dry type venturi paint mist trapping device has a strong capture and absorption capability for paint mist, and the environment pollution and energy consumption can be greatly reduced.

The invention provides a solar thermal power generation gridconnected control communication method, and realizes effective communication between a lower level power grid state and an upper level power grid dispatching instruction under a gridconnected state. The method adopts power as the primary communication parameter, and comprises the steps of processing and exchanging limit value, average value, deviation value, and correction value of power of each unit, and realizing communication with the upper level power grid system such as a local power grid dispatching by utilizing fiber Ethernet and TCP/IP protocol. The solar thermal power generation gridconnected control communication method satisfies the requirement that a solar energy power grid can perform communication feedback according to upper level dispatching instruction during gridconnection, so that controllability of the solar energy power grid by the upper level power grid is manifested, the problem that the distributed power grids are intermittent and uncontrollable is indirectly solved, and the intaking capacity of the whole power grid for intermittent energy of a minitype power system is improved.

The invention relates to a rainwater recovery system for a residential district. The rainwater recovery system comprises a water-permeable ground, a water collecting tank and a water treatment tank, wherein the water-permeable ground comprises a water-permeable brick layer, a filter layer, a first crushed stone layer, a coarse sand layer, an activated carbon layer and a second crushed stone layerwhich are sequentially arranged from top to bottom; a drainage pipe and a water guiding plate are arranged at the bottom of the second crushed stone layer; the drainage pipe is arranged at the middleof the second crushed stone layer and extends in the front-rear direction; the water guiding plate is V-shaped; the drainage pipe is positioned at the middle of the water guiding plate; the water collecting tank is used for collecting rainwater penetrating through the water-permeable ground; a water inlet of the water collecting tank is connected to the drainage pipe; the top of the water treatment tank is provided with a water treatment partition plate hanging over the bottom of the water treatment tank; the water treatment partition plate divides the water treatment tank into a water treatment part and a water outlet part; the bottom of the water treatment part communicates with the bottom of the water outlet part; the top of the water treatment part is connected to a water outlet of thewater collecting tank; and the top of the water outlet part communicates with an external landscape pond. Compared with the prior art, the rainwater recovery system for the residential district not only clears the road after the rainwater penetrates into the ground so as to significantly improve the absorptive capability to the rainwater, but also improves the resource utilization rate of the rainwater.

The invention relates to the technical field of textile machines, in particular to a chemical fiber textile machine. The textile machine comprises a textile machine body, a dust suction box, a dust suction machine, a transmission box, an automatic cleaning mechanism, an automatic fire extinguishing mechanism and an automatic dust collection mechanism. The automatic cleaning mechanism comprises a lead screw motor, a bidirectional lead screw, a sliding rod and a dust collection disc. The automatic fire extinguishing mechanism comprises a visible light flame detector, a gas guide pipe and a carbon dioxide fire extinguisher. The automatic dust collection mechanism comprises a plastic plate, a collecting box, a transmission wheel and a collecting pipe. By arranging the automatic dust collection mechanism, dust and flying catkins generated by spinning can be conveniently collected and cleaned, so that the dust and flying catkins are prevented from being scattered into a workshop to harm the health of workers. By arranging the automatic fire extinguishing mechanism, the situation in the textile machine body can be monitored, and fire extinguishing is conducted at the first time when a fire occurs, so that the loss is reduced to the minimum. By arranging the automatic dust collection mechanism, the dust and flying catkins generated by spinning can be further collected and cleaned.