98 results about "Cold zone" patented technology

A hotspot data elimination and maintenance method in a distributed cache system comprises the steps that the access frequency, the time locality score, the service weight and the real-time data popularity value of data are acquired, and the dynamic priority score of the data is generated; determining failure data based on the dynamic priority score; dividing the data into hot spot area data, temperature spot area data and cold spot area data, when the cache space is insufficient, preferentially eliminating the data with the lowest dynamic priority score and the retention benefit value lower than a preset threshold value in the cold spot area data, and if the cache space is still insufficient, performing data elimination on the temperature spot area data according to the latest access time of the temperature spot area data; packaging the cold point area elimination data, the warm point area elimination data and the failure data into a final transaction message; and broadcasting the final transaction message through a preset protocol, and performing distributed consistency maintenance operation on the final transaction message through the receiving node. According to the invention, intelligent and efficient cache data elimination and consistency maintenance management can be realized.

A method for simulating cross-seasonal heat storage of a buried pipe well group in a geothermal reservoir is characterized in that hot water and cold water are respectively injected in different seasons by arranging different injection ports in a countercurrent cross injection mode, so that a relatively balanced temperature distribution pattern of a'hot area 'and a'cold area' is formed in a stratum, and the volume structure of a buried pipe is simplified into a line unit model; discretizing the pipeline area by adopting a finite element method; on the basis, initial temperature field distribution of soil and initial parameters of fluid in a buried pipeline unit are set, a proper numerical solution method is selected to solve the pipeline unit model, and the stability of the calculation process and the accuracy of the result are ensured through real-time monitoring; in order to further analyze the influence of underground water seepage on the system performance, an underground water seepage module is introduced, and the difference between summer refrigeration and winter heat supply effects under the seepage condition or not is compared and researched; the invention further comprises a system, equipment and a storage medium for implementing the method.

The embodiment of the invention discloses a cold region heterogeneous slope hydrothermal coupling and freezing depth inversion method and system, and the method comprises the steps: obtaining air temperature day-by-day change data of a research region, and carrying out the fitting of the air temperature day-by-day change data, and obtaining an air temperature day-by-day change equation; basic physical parameters of a soil body are determined, and a soil body parameter random field is constructed; constructing a numerical simulation model according to site information of a research area, determining a calculation method of a temperature field and a moisture field, and applying corresponding hydrothermal boundary conditions on the basis of the numerical simulation model to obtain a hydrothermal coupling numerical model; importing a soil parameter random field into the hydrothermal coupling numerical model, and establishing a random hydrothermal coupling model considering the soil parameter heterogeneity; and performing analog calculation on the random hydrothermal coupling model, outputting temperature and moisture change characteristics of the model at different time and positions, determining the freezing depth according to the temperature and moisture change characteristics, and performing statistical analysis on a calculation result. According to the method, the non-uniformity of soil parameters is considered, and the accuracy of predicting the freezing depth is improved.

A method and apparatus used in preparing a recrystallized metal alloy involve a cooling medium and a heating element to create a cold zone and a hot zone. An additively manufactured metal alloy preform is drawn in a draw direction from the cold zone towards the hot zone to form the recrystallized metal alloy. The cold zone and the hot zone create a surface temperature gradient on at least a portion of the preform of at least about 104 K m−1. The step of drawing causes an average grain size of at least a portion of the preform to increase in a direction parallel to the draw direction.

The invention relates to the technical field of wind power plant layout optimization, in particular to an alpine region wind power plant-oriented multi-type wind turbine generator hybrid layout optimization method, which comprises the following steps of: establishing at least one design variable of an alpine region wind power plant optimization model, and establishing at least one constraint condition of the alpine region wind power plant optimization model; establishing a target function of the high and cold zone wind power plant optimization model; and based on the at least one design variable, the at least one constraint condition and the target function, adopting an improved genetic strategy to carry out global optimization to obtain an initial optimization result, and based on the initial optimization result, adopting a sequence least square planning strategy to carry out position optimization to obtain a final multi-type wind turbine generator hybrid layout optimization result of the wind power plant. Therefore, the problems that in the related technology, a single optimization algorithm is difficult to consider the global search capability and the local optimization effect, and only the position variable is considered, so that the actual requirement of high and cold region wind power plant planning cannot be met are solved.

The invention provides a multi-temperature-zone intelligent regulation and control medical cold chain system aiming at the problems of differentiated temperature requirements and biological safety in medicine cold chain transportation. The system is based on a multi-stage semiconductor refrigeration technology and a PCMS composite thermal insulation structure, a plurality of temperature zones which can be independently managed are arranged in the same box body, and a multi-source sensor array and an improved thermal coupling equation are combined; partitioned temperature fine control and cooperative energy consumption management are carried out on biological agents (such as vaccines, plasma and pathogen specimens) with different sensitivities and storage and transportation requirements. Layered energy storage and energy release are carried out in multiple temperature intervals through the phase change materials, self-adaptive compensation is carried out on factors such as box vibration, inclination and environment sudden change through a main control algorithm, and the medicine failure risk caused by temperature chain scission and overshoot is remarkably reduced. On the basis, the invention also provides a cloud big data analysis and remote scheduling mechanism, information such as real-time temperature curves, energy consumption indexes and pre-estimated residual cooling capacity of multiple temperature zones can be synchronously uploaded, potential faults and route congestion are automatically identified by means of a distributed algorithm, and then an energy-saving or emergency cooling instruction is issued to the box body. For extreme cryogenic requirements and high-risk pathogen scenes, the stability and the isolation protection level of a cryogenic area can be enhanced through the additional refrigerant circulating unit and the biological safety isolation cabin, and it is ensured that stable low temperature and high safety can still be kept in long-time cross-regional transportation.

The present invention relates to the technical field of high temperature protection of lithium batteries. The present invention discloses a high temperature protection structure of a lithium battery and an operating method thereof, comprising a base, a shell being horizontally arranged directly above the base, a plurality of connectors being arranged between the shell and the base, a plurality of lithium batteries being equidistantly and horizontally arranged inside the shell, a cooling hose being fixedly arranged inside the shell, the cooling hose being bent and the area between adjacent lithium batteries and the side ends of the lithium batteries being in contact with the side ends of the cold zone hose, and a coolant flowing inside the cooling hose being arranged inside the cooling hose; the present invention realizes timely adjustment of the cooling efficiency of the lithium battery according to the driving speed of the vehicle through the mutual cooperation of the cooling hose, the first air inlet, the second air inlet, the accelerated cooling device, the closed door and the intermittent heat dissipation device, so as to cool and dissipate the lithium battery to the greatest extent, so as to improve the service life of the lithium battery.

The inner container assembly comprises an inner container body and a pair of hot-air blowers, the inner container body is provided with a containing cavity and a pair of mounting grooves which are located in the left side and the right side of the containing cavity respectively and arranged in an up-down staggered mode, the two hot-air blowers are installed in the two mounting grooves respectively, and each hot-air blower is provided with an air outlet hole and an air return hole which communicate with the containing cavity. The two mounting grooves are staggered up and down, so that the hot air influence range of the two hot-air blowers can fully cover the whole liner body, a temperature field cold area is avoided, and meanwhile, the problem of non-uniform temperature field in the whole liner body caused by mutual blowing of the two hot-air blowers is avoided.

A method for quantifying and determining the sensitivity of the secondary cooling heat transfer coefficient of continuous casting based on the analytic hierarchy process belongs to the field of continuous casting technology in the metallurgical industry. The method includes: first, using the analytic hierarchy process to analyze and quantify the sensitivity of the empirical parameters in the heat transfer coefficient formula to the temperature field simulation results; second, based on the measured temperature data of the continuous casting billet in the steel plant, optimizing the empirical parameters with high sensitivity to the temperature field in the continuous casting solidification process, obtaining the heat transfer boundary conditions of the secondary cooling zone that better match the actual production process, and achieving the purpose of improving the accuracy of the temperature field simulation calculation. The analysis process of the present invention is more scientific and reasonable, and the complex evaluation problem is hierarchically decomposed to form a hierarchical structure, so that the problem evaluation is clearer, clearer and hierarchical; through parameter optimization, the evaluation factors with high sensitivity are adjusted and optimized in turn, and the estimated values ​​of the empirical parameters in the heat transfer model are corrected according to the measured temperature, and the boundary conditions of the secondary cooling zone in the heat transfer calculation are optimized, which can improve the accuracy of the numerical simulation of the temperature field and solidification process of the continuous casting billet.

The cushion frame comprises a cushion plate, a plurality of supporting legs arranged at intervals are arranged on the lower side of the cushion plate, a plurality of supporting ribs arranged at intervals are arranged on the upper side of the cushion plate, the supporting ribs are used for supporting a stewing cup, convection holes are formed in the center area of the cushion plate, and the cushion plate is arranged in a rising mode from the convection holes to the outer edge. The cushion frame is used in a cooking utensil for stewing in water, a hot area with high water temperature is formed near the edge of the cushion plate during working, a cold area with low temperature is formed in an area between the lower portion of a stewing cup and the upper portion of the cushion plate, water in the cold area can flow to the lower portion of the cushion plate through the convection holes, and water flow, close to the central area, below the cushion plate can flow towards the outer edge of the cushion plate. The water flowing out of the outer edge of the base plate flows upwards. Water flow near the outer edge of the base plate and located above the base plate can flow towards the center of the base plate, so that the cold area and the hot area are communicated with each other to form circulating heat convection, water in the heating cavity of the cooking utensil can be heated more quickly, and the overall heat efficiency of the cooking utensil is improved.

A method for eliminating and maintaining hotspot data in a distributed cache system includes: obtaining data access frequency, temporal locality score, business weight, and real-time data heat value to generate a dynamic priority score for the data; determining invalid data based on the dynamic priority score; dividing the data into hot zone data, warm zone data, and cold zone data; when cache space is insufficient, preferentially eliminating data in the cold zone data with the lowest dynamic priority score and a retention benefit value below a preset threshold; if cache space is still insufficient, eliminating the warm zone data based on the most recent access time of the warm zone data; encapsulating the cold zone eliminated data, warm zone eliminated data, and invalid data into a final transaction message; broadcasting the final transaction message via a preset protocol, and performing distributed consistency maintenance operations on the final transaction message via receiving nodes. The present invention can achieve intelligent and efficient cache data elimination and consistency maintenance management.

The invention discloses a detection platform of a central air-conditioning refrigerating unit and a detection method thereof, the detection platform comprises a refrigerating unit body, the refrigerating unit body comprises a cold water outlet, a cold water inlet, a cooling water outlet and a cooling water inlet, the detection platform further comprises a heat exchanger, and the cold water outlet is connected to a shell pass inlet of the heat exchanger; a shell pass outlet of the heat exchanger is connected with a cold water pool, a cooling water outlet is connected with a flow dividing pipe, one end of the flow dividing pipe is connected to a tube pass inlet of the heat exchanger, the other end of the flow dividing pipe is connected to an inlet of the cooling tower, and a tube pass outlet of the heat exchanger and an outlet of the cooling tower are both connected to the cooling water pool. According to the detection platform, closed circulation of cold water and cooling water is formed, a cold water system and a cooling water system during actual operation of the refrigerating unit body are simulated, temperature, pressure and flow changes of cold water and cold area water in the unit can be truly reflected, and basic data are provided for detecting the refrigerating efficiency of the unit.

The invention discloses extrusion equipment for degradable film production and a use method thereof, and belongs to the technical field of degradable film production, the equipment comprises an extrusion cylinder, a melting cylinder, an extrusion seat, a fixed roller and a floating roller, an extrusion shaft is rotatably connected in the extrusion cylinder, and an extrusion blade is fixedly connected to the extrusion shaft; the bottom of the melting cylinder is connected with the extrusion cylinder through a feeding pipe, and a spiral heating wire is fixedly connected into a side plate of the melting cylinder. An extrusion cavity is formed in the extrusion seat and is in a three-section type; the degradable film extrusion device has the following beneficial effects that 1, the extrusion barrel is arranged to be conical, and the extrusion cavity is designed to be in a three-section type, so that the compaction degree can be improved, and the situation that pinholes and bubbles appear on a formed degradable film is avoided; and 2, the degradable film is finally formed through the shaping section, and the degradable film is cooled in a cold area at the position of the shaping section, so that the uniform thickness is ensured after the degradable film is formed. And 3, the formed degradable film is pulled out through the fixed roller and the floating roller which rotate oppositely.

The utility model relates to the technical field of variable-frequency screw compressor equipment, in particular to an integrated novel air-cooled variable-frequency screw air compression station which comprises a driving system, an air inlet system, an oil way system, a cooling system, a cold drying system, a waste heat recovery system, an electrical control system, a storage and metering system and a box body. The box body is divided into a cold area and a hot area for isolation, the space structure layout is integrated and compact, the appearance design adopts a container form, all parts are integrally installed, high-quality compressed air can be provided, the system energy efficiency is high in usability, the space design structure is compact, and the integrated air compression station is safe, reliable and convenient to use and install. The air compression station is small in occupied area and convenient to operate, carry and install.

The utility model discloses a cast steel cooling wall structure which comprises a cast steel furnace main body, and mounting grooves are respectively formed in the peripheral side walls of the cast steel furnace main body. The cooling device has the beneficial effects that the cooling vertical pipe matched with the sliding type quick-connection sealing assembly is jointly mounted between the connecting pipes on the cooling transverse pipes on the upper side and the lower side, so that when the cooling vertical pipe is replaced after being damaged, the cooling vertical pipe can be replaced by directly rotating a threaded sleeve in the quick-connection sealing assembly; according to the technical scheme, the threaded sleeve slides in the length direction of the cooling vertical pipe so that the threaded sleeve can be screwed away from the connecting pipe on the cooling transverse pipe, and therefore the cooling vertical pipe and the cooling area transverse pipe can be rapidly detached, and rapid replacement of the cooling vertical pipe is facilitated; therefore, skew screwing operation during replacement and maintenance after the cooling vertical pipe is damaged is effectively avoided, the phenomenon that the end of the cooling vertical pipe is not tightly sealed during replacement after the cooling vertical pipe is damaged is prevented, and the replacement efficiency of the cooling vertical pipe after the cooling vertical pipe is damaged is higher.

The utility model discloses a tower plate structure of an ultra-large rectifying tower, belongs to the technical field of industrial equipment, and aims to provide a tower plate structure of an ultra-large rectifying tower with conveniently controllable temperatures at different heights in a tower body, the tower plate structure comprises a heating disc, a convection channel is formed in the center of the heating disc, and a hot area temperature sensor is fixedly connected to the upper surface of the heating disc; an electric heating disc is arranged at the bottom of the heated disc, a positioning steel ring is fixedly connected to the edge of the heated disc, a heat insulation disc is fixedly connected to the bottom of the positioning steel ring, a clamping channel is formed in the center of the heat insulation disc, a condensation pipe is arranged on the bottom face of the heat insulation disc, and a cold area temperature sensor is fixedly connected to the lower surface of the heat insulation disc. The heating parts are arranged in the interlayers of the tower plates, the temperature sensors are arranged on the top surfaces of the tower plates, and the condensation pipes and the temperature sensors are arranged on the bottom surfaces of the tower plates, so that the temperatures at different heights of the rectifying tower are known and controllable, and high-precision rectifying operation can be carried out without carrying out large-scale debugging on the rectifying tower.

The utility model provides a backpack assembled data acquisition instrument heat preservation box suitable for severe cold climate, which belongs to the technical field of frigid zone environmental engineering and comprises a heat preservation box, a connecting rod and a stabilizing frame. The heat preservation box is composed of a shell coating, a protective shell, a heat preservation layer, a heating layer, a heat conduction layer, a buffer layer, a collection core and a reserved position in sequence from outside to inside. The connecting rod is of a hollow structure made of a light carbon fiber material and is used for connecting the heat preservation box and the stabilizing frame, and the hollow structure can be used for arranging a circuit; the stabilizing frame is of a schoolbag structure, the heat preservation box is supported through the connecting rod at a data acquisition place, and the heat preservation box and the connecting rod can be stored before and after acquisition; according to the design and integration scheme of the utility model, the reliability of data acquisition is improved, the limitation of climate and environment is broken through, and more comprehensive information support is provided for urban planning and meteorological monitoring.

The utility model provides a kind of aluminium liquid smelting furnace agitating device, it is related to aluminium material smelting technical field, including smelting furnace body, the rotating shaft is penetrated and is rotatably installed in smelting furnace body upper surface one side, the agitating assembly for agitating aluminium liquid is arranged in the lower end of rotating shaft, the driving assembly for driving rotating shaft rotation is arranged in smelting furnace body upper surface.The utility model in the staff can smelt aluminium material into aluminium liquid by using smelting furnace body, in smelting process, staff enables driving assembly, makes it drive rotating shaft rotation, rotating rotating shaft can drive mounting sleeve and mounting block rotation, so that inclined rod can be rotated with rotating shaft as reference and agitate melt in smelting furnace body, so that melt and heat are fully contacted, avoid the appearance of cold zone and hot zone in furnace, to improve smelting quality.

The invention discloses a method for preparing oxygen-free copper, comprising: vacuum melting and removing impurities from a copper raw material to obtain a desired copper liquid, transferring the copper raw material into a refining furnace in a non-vacuum state through a sealed flow channel, the refining furnace comprising a heat-insulating refining chamber with a first cavity formed therein, and a buffer chamber to be cast with a second cavity sealed and connected to the first cavity formed therein, refining and removing impurities from the desired copper liquid in the heat-insulating refining chamber to obtain a refined copper liquid contained in the first cavity, causing the refined copper liquid to flow out of the first cavity and flow upward under the action of a first external force, and then flow into the second cavity; when the first external force is weakened or removed, the refined copper liquid stops flowing into the second cavity; causing the refined copper liquid entering the second cavity to flow downward and enter a cold zone in a crystallizer in an up-down direction for crystallization, and drawing out oxygen-free copper in an up-down direction; the method of the invention can not only realize the preparation of high-purity and large-sized oxygen-free copper, but also realize continuous or intermittent casting, with low energy consumption and high efficiency.

The application discloses a heating film, a battery pack and a vehicle, the heating film comprising: a flexible base layer; a functional layer located on one side of the flexible base layer, the functional layer comprising a plurality of substructures arranged in an array, the substructures being circular, rectangular or parallelogram in shape; a plurality of conductive electrodes located on the side of the functional layer away from the flexible base layer, the plurality of conductive electrodes comprising first conductive electrodes and second conductive electrodes arranged at intervals and electrically opposite; and a buffer structure located on the side of the functional layer away from the flexible base layer and between the first conductive electrodes and the second conductive electrodes. Thus, the heating film is conducive to realizing uniform heat dissipation without dead angles, reducing the problems of local overheating or cold zones of traditional heating films, improving the electric-thermal conversion efficiency, having a wide temperature resistance range, meeting the use requirements of the vehicle in a low-temperature environment, and being low in cost and easy to realize industrial production.

The present invention relates to the technical field of grinding liquid supply barrels, and more specifically, to a grinding liquid dynamic supply barrel with a constant temperature control function, comprising a mounting platform and a barrel body fixed thereto, as well as a pressure wave generating mechanism and a pressure wave generating drive mechanism. The pressure wave generating mechanism is disposed on the barrel body and includes an elastic membrane sealed to the side wall of the barrel body, a sealing body disposed at the center of the elastic membrane, and a metal block disposed on the outer surface of the sealing body. The present invention achieves uniform temperature distribution within the three-dimensional space of the grinding liquid through the synergistic effect of pressure waves and mechanical agitation, eliminating local overheating or cold zones. The pressure waves generated by the rapid deformation of the elastic membrane can quickly transfer energy, significantly shortening the temperature adjustment time compared to traditional heating methods. Furthermore, mechanical energy is directly converted into thermal energy, resulting in high energy conversion efficiency and reduced additional heating energy consumption.

This utility model belongs to the field of living organism preservation technology, and in particular relates to a limb perfusion and transport device. The limb perfusion and transport device includes an insulated outer shell, a limb box, a solution container, and a perfusion system. The insulated outer shell contains a cold zone chamber and a waste liquid chamber for containing a waste liquid bag; the limb box contains a limb chamber for containing the severed limb, and is at least partially located within the cold zone chamber; the solution container contains a solution chamber for containing the perfusion fluid, located within the cold zone chamber, and is spaced apart from the limb box in the X direction. A filling port for adding a cold-storing substance to the cold zone chamber is located between the solution container and the limb box; the perfusion system is located within the insulated outer shell and connects the solution container, the limb box, and the waste liquid bag, so that the perfusion fluid in the solution chamber is infused into the severed limb in the limb chamber and then into the waste liquid bag. In this device, the perfusion fluid in the solution container is only infused once, ensuring the viability of the severed limb, and the miniaturized design facilitates transport.

The present disclosure relates to a refrigeration driver based on winding and bending of elastic material, comprising at least a pair of carriers, each carrier being arranged parallel to each other and being rotatable along an axis, and an elastic material strip, both ends of which are fixed on the pair of carriers, wherein the pair of carriers winds the elastic material strip on at least one carrier of the pair of carriers by rotating in a first direction, the part of the elastic material strip wound on the carrier releases heat to form a hot zone, and the pair of carriers unwinds the elastic material strip from at least one carrier of the pair of carriers by rotating in a second direction opposite to the first direction, the part of the elastic material strip unwound from the carrier absorbs heat to form a cold zone. The refrigeration driver of the present disclosure reduces driving force, realizes continuous high-frequency operation and automatically separates the hot zone and the cold zone.

A steel plate for a box of a large mining dump truck in an extremely cold zone and a manufacturing method therefor. The steel plate is divided into a composite-layer steel plate and a base-layer steel plate. The composite-layer steel plate and the base-layer steel plate are metallurgically bonded. The composite-layer steel plate comprises the following chemical components: 0.19-0.29 wt.% of C; 0.15-0.75 wt.% of Si; 0.55-1.55 wt.% of Mn; 0.10-0.70 wt.% of Cr; less than or equal to 0.030 wt.% of P; less than or equal to 0.010 wt.% of S; 0.010-0.060 wt.% of Al; 0.0005-0.0050 wt.% of B; any one or more selected from 0.01-0.60 wt.% of Mo, 0.01-0.08 wt.% of RE, 0.005-0.060 wt.% of Nb, 0.01-0.10 wt.% of V, and 0.005-0.060 wt.% of Ti; and the balance of Fe and inevitable impurities. The base-layer steel plate comprises the following chemical components: 0.08-0.13 wt.% of C; 0.15-0.55 wt.% of Si; 0.70-1.70 wt.% of Mn; 0.05-0.55 wt.% of Cr; 0.10-0.55 wt.% of Mo; 1.25-2.55 wt.% of Ni; less than or equal to 0.030 wt.% of P; less than or equal to 0.010 wt.% of S; 0.010-0.080 wt.% of Al; 0.0005-0.0050 wt.% of B; any one or more selected from 0.01-0.08 wt.% of RE, 0.005-0.060 wt.% of Nb, 0.01-0.10 wt.% of V, and 0.005-0.060 wt.% of Ti; and the balance of Fe and inevitable impurities. By means of the design of the steel element components, the composite-layer steel plate has relatively high strength and hardness, and the base-layer steel plate has excellent low-temperature toughness while having relatively high strength and hardness. According to the steel plate compounded by a rolling process, the steel plates of the layers are metallurgically bonded, so that the integrity of the steel plate can be ensured, and the characteristics of the steel plates of the layers can be exerted, and thus, the whole composite plate has excellent comprehensive mechanical properties. In addition, the contents of carbon and alloy elements are controlled, thereby reducing the carbon equivalent, thus ensuring that the steel plate has good welding performance.

The invention discloses a copper smelting slag slow cooling field scheduling method and system, computer equipment and a storage medium, relates to the technical field of metal smelting, can realize full life cycle tracking and closed-loop data management of slag ladles, and remarkably improves the cooling efficiency and reduces the safety risk in combination with dynamic cooling component distribution and multi-equipment coordination rules. The method comprises the steps that when a copper smelting slag full receiving signal is received, a state label of a slag receiving ladle is adjusted to be a hot ladle, and a mobile electric flat car is dispatched to load the slag ladle to advance along a full ladle track; a target cooling group is determined from the multiple cooling groups corresponding to the copper smelting slag slow cooling field, and a ladle position is selected from the target cooling group to serve as a designated ladle position; scheduling operation indicated by the specified scheduling rule is executed, so that the corresponding metallurgical portal crane is controlled to hoist the slag ladle to be placed at the specified ladle position; and when all the ladle positions corresponding to one cooling group are in the non-vacancy state and the slag ladles on each ladle position are in the hot ladle state, cooling operation is conducted on the cold area group.

To provide an electrofusion joint in which the strength of the electrofusion socket is appropriately improved. [Solution] The electrofusion joint 10 comprises a joint body 12 having an electrofusion socket 16 and a heating wire 20 embedded in the electrofusion socket. The heating wire has an effective heating wire portion 50 that is spirally provided near the inner circumferential surface of the electrofusion socket 16 in the fusion zone 40, and a reinforcing portion 52 that is spirally provided at a predetermined radial distance from the inner circumferential surface of the electrofusion socket in the cold zone 42 at the axial rear, so as not to melt the inner circumferential surface of the electrofusion socket during fusion.

The present invention provides an ultra-large horizontal cold box, which comprises a one-stage cold box cylinder with a horizontal layout, heads relatively arranged at both ends of the cold box cylinder for use with the cold box cylinder, first, second, third and fourth temperature zone units detachably arranged in the cold box cylinder along the axis of the cold box cylinder and connected in sequence through pipelines, and raw gas passes through the first, second, third and fourth temperature zone units in sequence; a first vertical flange and a second vertical flange are arranged in the upper part of the cold box cylinder along its axial direction so that the temperature zone units can enter and exit the cold box cylinder; the first, second, third and fourth temperature zone units are arranged in sequence in the cold box cylinder 1 along the axis of the cold box cylinder 1 and connected in sequence through pipelines, so that the cold box structure is compact and easy to integrate and install, there is no detour of pipelines between the temperature zone units, and it is easy to disassemble and maintain, and the cold box cylinder 1 is a one-stage structure, and the existing pull-out disassembly scheme is not adopted. When disassembling, it is not necessary to cut and remove the pipelines and sensors on the cold box cylinder 1 due to pulling out the cylinder, thereby improving the efficiency of disassembly and installation.

Methods and systems for desalination of water are described. In an embodiment, a method of desalination includes (a) providing a vessel which includes a cold zone; a hot zone; a working fluid which includes a substantially non-polar alcohol spanning the cold zone and the hot zone; a feed water inlet configured to mix saline water with the working fluid in the cold zone; a reject outlet configured to remove saline water from the working fluid in the cold zone; and a desalinated water outlet configured to remove desalinated water from the working fluid in the hot zone; where the hot zone is configured to be maintained at a substantially warmer temperature than the cold zone; (b) adding saline water to the vessel via the feed water inlet; and (c) removing desalinated water from the vessel via the desalinated water outlet.

The present invention relates to a high-stability flaky nanoparticle modified emulsified asphalt (FNP-EA) and a preparation method thereof. The FNP modified emulsified asphalt is stabilized by flaky nanoparticles and an emulsifier, and FNP is simultaneously present on the surface of asphalt droplets and in the continuous phase, thereby improving the stability of the modified emulsified asphalt. In the FNP modified emulsified asphalt of the present invention, the adsorption of the modifier FNP on the oil-water interface causes the asphalt droplets to be highly charged, thereby increasing the repulsive potential energy between the droplets and improving the stability of the asphalt emulsion. It has excellent low-temperature stability, is suitable for alpine cold zones, and is suitable for construction throughout the year in most areas. The preparation method of the FNP modified emulsified asphalt is simple, low-cost, suitable for large-scale production, has good environmental compatibility, and has practical application prospects.

The invention relates to the technical field of grinding fluid supply barrels, in particular to a grinding fluid dynamic supply barrel with a constant temperature control function, which comprises a mounting table and a barrel body fixed on the mounting table, and further comprises a pressure wave generation mechanism and a pressure wave generation driving mechanism, the elastic film is in sealed connection with the side wall of the barrel body, a sealing body is arranged at the circle center of the elastic film, and a metal block is further arranged on the outer surface of the sealing body. Through the synergistic effect of pressure waves and mechanical stirring, uniform temperature distribution of grinding liquid in a three-dimensional space is achieved, and local overheating or cold areas are eliminated; pressure waves generated by rapid deformation of the elastic film can rapidly transfer energy, and compared with a traditional heating mode, the temperature adjusting time is remarkably shortened; and mechanical energy is directly converted into heat energy, the energy conversion efficiency is high, and extra heating energy consumption is reduced.