40results about How to "Controllable cost" patented technology

The invention provides a fire warning method for a battery prefabricated cabin of a lithium iron phosphate energy storage power station, and relates to the field of fire protection. A fire alarm controller, a fire detection alarm system and a fire extinguishing system which are connected to the fire alarm controller, a BMS battery management system, and a combustible gas explosion-proof system connected to the BMS battery management system are arranged in the battery prefabricated cabin. A combustible gas monitoring device is added to the fire detection alarm system, alarm thresholds in earlywarning and later warning stages are set respectively during combustible gas monitoring, and the combustible gas explosion-proof system and the fire extinguishing system are controlled to act in different alarm stages respectively. Through two-stage multi-level fire warning set according to combustible gas monitoring, the accuracy and reliability of thermal runaway detection warning for lithium iron phosphate batteries are improved, and safe operation of an energy storage system is guaranteed.

The invention relates to the technical field of monitoring of floating oil, and in particular relates to thermal infrared imaging measuring system and method for an oil film on the water surface. The system comprises a thermal infrared imaging instrument, an optical filter unit, a polarizing film unit and a reflecting vibration mirror which are sequentially arranged; the thermal infrared imaging instrument is used for acquiring thermal infrared information of the current water source; the optical filter unit is equipped with a plurality of optical filters with different wave bands, and the plurality of optical filters can be adjusted to be respectively centered to a lens of the thermal infrared imaging instrument; the polarizing film unit is equipped with a plurality of polarizing films with different polarizing angles, and the plurality of polarizing films can be adjusted to be respectively centered to a lens of the thermal infrared imaging instrument; the reflecting vibration mirror is used for adjusting the working angle. Compared with the prior art, the system has the advantages that the interference of outside solar radiation, wind speed and other time and environmental factors on the measurement of the oil film on the water surface are avoided; the system is small in size, can quickly and accurately qualitatively and quantitatively measure the floating oil on the water surface, and is relatively high in operability, and controllable in manufacturing cost and use cost.

The invention discloses a key-joint bearing platform and a landscape pier comprising the same and being used for karst geology. The key-joint bearing platform comprises concrete and a cage-shaped frame, wherein the concrete is poured into the cage-shaped frame; the cage-shaped frame mainly comprises a group of horizontal ring-shaped stirrups and two groups of vertical ring-shaped stirrups which are mutually vertical and are sheathed and hooped mutually in a two-two manner; all the horizontal ring-shaped stirrups are distributed in parallel and in the vertical direction, while all the vertical ring-shaped stirrups are arranged distributed in parallel and in the horizontal direction. The key-joint bearing platform and the landscape pier disclosed by the invention have the advantages that the stirrups in the three directions are nested and sheathed to tightly encircle the concrete inside and form a cage-body sheathing and hooping effect, so that the three-dimensional stress intensity of the concrete is increased and further the core strength of the concrete is improved compared with concrete in a single-direction stress state; three-dimensional orthogonal-stressing closed stirrups form a space-isotropic-orthogonal closed stressing system, so that the smooth transferring of complex stress flow of pulling, pressing, bending, shearing and twisting from an upper structure of a cross joint to a lower structure is realized.

The invention discloses an FRP balcony thermal bridge cutoff structure and method. The FRP balcony thermal bridge cutoff structure comprises a tension piece, a compression piece, a heat preservation material and a packaging piece and further comprises a shear-resistant piece, wherein the packaging piece is filled with the heat preservation material; the tension piece is made of FRP rib materials and located on the upper portion of the packaging piece, the two ends of the tension piece stretch out of the packaging piece, the end stretching out of the packaging piece is used for stretching intoa main floor slab, and the other end stretching out of the packaging piece is used for stretching into a balcony slab; and the compression piece is made of FRP rib materials and located on the lower portion of the packaging piece, one end of the compression piece stretches out of the packaging piece, and the end stretching out of the packaging piece is used for stretching into the balcony slab. According to the FRP balcony thermal bridge cutoff structure, the excellent mechanical property and thermal property of FRP are fully utilized, and the completeness of a load force transmission path isguaranteed while building thermal bridges are reduced. Manufacturing is easy and convenient, the stress property is good, the heat insulation property is excellent, the local heat transfer amount of the thermal bridges can be effectively reduced, the risk of structural moisture condensation and mildewing is reduced, and the living comfort of a house is improved.

The invention discloses an environment-friendly and efficient dewatering and drying method for dredging ultra-soft soil. The method comprises the steps that S1, working cushion layers are laid in a storage yard, specifically, the working cushion layers are laid in a dewatering and drying area of a dredging ultra-soft soil stacking yard and the top of an ultra-soft soil body; s2, arranging an air exhaust assembly, a water drainage assembly, a temperature control assembly and a pressure control assembly in the soil body; s3, a soil body closed environment is constructed; step S4, dehydrating and drying the soil body in stages through a temperature and pressure double-control technology, wherein the temperature and pressure double-control technology comprises an air exhaust and water drainage test extraction stage in the first stage, a vacuum test air exhaust load reaching stage in the second stage and a temperature and pressure double-control stage in the third stage; and S5, when the membrane top of the dredged ultra-soft soil body settles stably and drainage of the drainage assembly fails, operation is stopped. According to the method, materials and reagents are not added into the soil body, moisture in the dredged ultra-soft soil can be discharged in an environment-friendly and efficient mode, the size of the dredged ultra-soft soil is efficiently reduced, the space of a storage yard is enlarged, the treatment period is short, construction is convenient, and treated bottom mud can be recycled.

The invention provides a construction method of a concrete brick curtain wall. According to installing point positions of a steel structure bearing frame, the steel structure bearing frame is installed on the wall face of a building main body structure. According to the installing point positions of concrete decoration bricks on the steel structure bearing frame, the concrete decoration bricks arearranged on the steel structure bearing frame at one or more preset angle in a pixel way, are common universal bricks and are of hollow structures, raw materials for making the concrete decoration bricks are easy to obtain, the manufacturing cost is controllable, and diverse arrangement of the concrete decoration bricks and a simple concrete colored tape bring a unique building art style throughmatching of the steel structure bearing frame and the concrete decoration bricks. In addition, the concrete decoration bricks are wholly hollow, natural wind can carry away hot air in time, and wholeheat dissipation and energy saving are achieved.

The invention provides a cell culture medium for culturing primary gastrointestinal stromal tumor cells. The cell culture medium contains gastrin, N2, insulin, a receptor tyrosine kinase ligand and a Rock kinase inhibitor. The invention also provides a method for culturing gastrointestinal stromal tumor cells by adopting the cell culture medium, and application and a method of an amplified cell population obtained by adopting the method in curative effect evaluation or screening.