138 results about "Moisture flow" patented technology

The invention relates to the technical field of rotary cultivators, in particular to a rotary cultivator with a residual film recycling function. Comprising a front wheel; first rotating shafts are fixedly connected to one sides of the two front wheels, second rotating shafts are fixedly connected to one sides of the two rear wheels, a recycling machine shell is jointly and rotationally connected between the two first rotating shafts and the two second rotating shafts, and a tillage machine is arranged on one side of the recycling machine shell. Through cooperation of a water pump, a second threaded rod, a spraying bin and a spray head, broken films on a screen mesh plate can be dissolved, soil blocks can be decomposed, the problem that a large amount of time is spent on sorting residual films and straw by workers in the follow-up process is solved, a first motor, an air pump, a second motor and the water pump are controlled through a controller, and the working efficiency is improved. Complex residual film recovery and soil treatment processes are integrated into a highly automatic and intelligent operation system, the soil humidity, the residual film density and the impurity content are monitored in real time through a sensor, the suction force of an air pump and the water pressure of a water pump are intelligently adjusted, and soil moisture loss and energy consumption are reduced to the maximum extent while it is ensured that residual films are efficiently recovered.

The invention provides a hydrogel-based radiation refrigeration moisture power generation material and a preparation method and application thereof, and belongs to the technical field of moisture power generation materials.The hydrogel-based radiation refrigeration moisture power generation material comprises a nano carbon black layer, a conductive hydrogel layer and a titanium dioxide layer which are sequentially stacked; the conductive hydrogel layer comprises a hydrogel matrix, a conductive filler and a temperature-sensitive material; the temperature-sensitive material comprises at least one of poly (N-isopropylacrylamide), a polyethylene glycol and polylactic acid copolymer and vanadium oxide; the cross section of the hydrogel-based radiation refrigeration moisture power generation material is of a W-shaped structure. The conductive hydrogel layer is of a three-dimensional network structure with conductivity and temperature-sensitive characteristics; the titanium dioxide layer realizes efficient sunlight reflection, the nano carbon black layer enhances heat conduction and conductivity, and the W-shaped structure promotes moisture flow and circulation; the multifunctional power generation device prepared based on the hydrogel-based radiation refrigeration moisture power generation material has good radiation refrigeration and moisture power generation performance, and is excellent in stability and durability.

An electronic device is provided that includes a housing including a key hole and a vent hole, a button member including a body part disposed to cover the key hole and the vent hole, and a button protrusion inserted into the key hole, a substrate member including a switch actuated based on the button protrusion, a base disposed between the housing and the substrate member to cover the substrate member, a waterproof member including a sealing part, formed to protrude from the base to surround a perimeter at least one of the key hole and the vent hole, which has at least a part in close contact with the outer wall, a conduit for connecting an internal space and outside of the electronic device through the vent hole, and a waterproof cover disposed on the conduit so as to block moisture flowing in through the vent hole.

The application belongs to the technical field of road shoulder slip form, and specifically relates to an integrated shoulder protection slip form hopper with a concrete clumping prevention function, which comprises a stock bin and a screw feeder, the top of the stock bin is provided with a moisturizing cover plate, the moisturizing cover plate comprises a fixed cover plate and a movable cover plate in sliding fit, the bottom of the fixed cover plate is provided with a first sealing strip for sealing the inner side end and the front and rear ends of the top of the stock bin, the outer side of the bottom of the movable cover plate is provided with two second sealing strips in front and back opposite distribution through a rotating shaft, a spraying channel is symmetrically arranged inside the movable cover plate, and the bottom of the spraying channel is provided with a spraying hole. The moisturizing cover plate has the advantages of reducing water loss of the stock bin, spraying water flow into the stock bin and cooling the stock bin, and can prevent concrete clumping, thereby solving the problem of easy clumping of concrete in the stock bin in the prior art.

The draining device comprises a mop assembly, a draining pipe is arranged on the outer side of the mop assembly in a sleeved mode, a draining base is arranged at the bottom end of the draining pipe, a water outlet hole assembly is arranged on the peripheral face of the draining pipe, the water outlet hole assembly comprises a first water outlet hole and a second water outlet hole, and the first water outlet hole is communicated with the second water outlet hole. The first water outlet hole and the second water outlet hole are sequentially formed from top to bottom; a hollowed-out plate is arranged at the position, close to the bottom, of the draining base, and the lower portion of the hollowed-out plate is arranged in a suspended mode so that water on the mop can be drained out conveniently. The mop can be contained in the draining pipe by pulling the mop assembly, the bottom end of the draining pipe is used for being matched with the draining base for use, water in the mop can be squeezed out by continuously pulling the mop assembly, the squeezed water flows out from the water outlet holes and the hollow plate, and the water in the mop can be drained conveniently through single-person operation. And the sanitation of the mop in the dewatering process is ensured.

The utility model discloses rural domestic sewage and rainwater diversion equipment, and particularly relates to the technical field of rural domestic sewage and rainwater treatment, which comprises a water inlet pipeline, and one side of the end part of the water inlet pipeline is connected with a sewage pipeline. By arranging the fixing frame, the sliding column, the inserting plates, the gear, the toothed plate and other structures, when the water level sensor in the rain receiving cylinder detects that the water level reaches the standard, the sliding column can drive the two inserting plates to move relatively in the inserting opening, one inserting plate descends and seals a sewage pipeline, and the other inserting plate ascends to open a rainwater pipeline; on the contrary, the rainwater pipeline can be closed and the sewage pipeline can be opened by controlling the reverse lifting of the two inserting plates, so that the sewage in the ditch can be introduced into the sewage treatment system through the water inlet pipeline and the sewage pipeline, the operation is simple, and the operation is convenient. And diversion switching is convenient, stable and efficient, and the diversion effect of sewage and rainwater is greatly guaranteed.

The utility model relates to a main furnace of a waste incineration treatment furnace, which comprises a main furnace body, a conveying frame and a collecting tank, the water removal assembly comprises a tank body, a crushing box, a feeding hopper, a crushing motor, a driving gear, a driven gear, a first crushing roller, a second crushing roller, a water collection cone, a fixing rod and a flow guide hose, the crushing box is fixedly installed on the outer surface of the top end of the tank body, and the feeding hopper is welded to the outer surface of the upper end of the crushing box; and the crushing motor is fixedly mounted on one side of the crushing box. When the water removal assembly is used, garbage can be crushed through the crushing box, part of water in the garbage flows out, then the water flowing out is collected through the water collecting cone, and therefore the situation that excessive water enters the main incinerator body to affect garbage incineration can be avoided, and waste of a large amount of energy sources caused by incineration is avoided.

The utility model relates to the technical field of mud filtration, and provides a deep cone type mine mud soil geotextile tube bag method device which comprises a box body, an inclined plate fixedly installed on one side of the upper end of the interior of the box body, a plurality of through holes formed in the outer surface of the inclined plate, and a geotextile tube bag body arranged on the outer surface of the inclined plate, a connecting hose is arranged on the outer surface of the geotextile tube bag body; the connecting hose is connected with the draw-off pump, the draw-off pump conveys slurry into the geotextile tube bag body, the geotextile tube bag body is arranged on the outer surface of the inclined plate, the geotextile tube bag body can better accelerate outflow of internal water, the through holes are formed in the outer surface of the inclined plate, and the through holes are communicated with the inclined plate. And the baffle is fixedly installed on one side of the inclined plate, the baffle can block the geotextile pipe bag body and prevent the geotextile pipe bag body from sliding off from the outer surface of the inclined plate, and the through grooves are formed in the outer surface of the baffle, so that water can flow out conveniently.

The utility model discloses an adjustable cooling water shunting device of a machining center, which is applied to the technical field of machining centers and comprises a shunting box, the top and the bottom of the shunting box are respectively provided with a cooling water inlet and a greasy dirt outlet, the inside of the greasy dirt outlet is communicated with a greasy dirt pipeline in a sliding manner, and the top of the greasy dirt pipeline is welded with a fixed plate. The oil stain pipeline is driven to move up and down in the flow dividing box through buoyancy of the annular air bag in cooling water and oil stain. Therefore, even if the liquid level of the cooling water changes in height, the through hole can be always located at the top of the liquid level of the cooling water, an oil stain layer on the cooling water is discharged outwards through the oil stain outlet, and the diversion efficiency of the cooling water and the oil stain is guaranteed. Cooling water is filtered through the filter screen, and filtered workpiece chippings are pushed into the collecting groove to be stored through reciprocating sliding of the push plate on the top of the filter screen. And therefore, workpiece chippings in the cooling water can be conveniently cleaned, and the cooling water pipeline is prevented from being blocked.

Existing fabrics with moisture management functions only diffuse moisture on one side, and it is difficult to simultaneously ensure moisture absorption, diffusion, and reverse osmosis resistance, and they also lack washing durability and comfort. Therefore, we provide a fabric with better moisture management functions. [Solution] This fabric has moisture management properties and includes a texture layer 1 and a filling layer 2. The texture layer includes a waterproof / breathable layer 4, a hydrophobic layer 5, and a hydrophilic layer 6, while the filling layer includes a flow-guiding layer 7. These layers are arranged in this order from the skin side, with the waterproof / breathable layer being made of a hydrophobic fiber fabric with micrometer-level protrusions on the fiber surface. The fibers in the hydrophilic layer have a hollow, crisscross, multi-lobed, or microporous irregular cross-sectional structure, which rapidly expels moisture through the capillary effect. This allows for one-way moisture flow and prevents reverse osmosis, while also providing moisture absorption, diffusion, and reverse osmosis resistance. Furthermore, the fabric boasts excellent washability, breathability, and a pleasant texture, making it suitable for use in household and pet textiles.

The utility model relates to the technical field of swimming pool water treatment, in particular to a pressurized water outlet shunting type salt chlorine generator which comprises a main pipeline and a detection device, and an electrolysis device is mounted on the main pipeline; a first water outlet hole and a first water inlet hole are formed in the main pipeline, water flow in the main pipeline flows through the first water outlet hole from left to right, a second water inlet hole and a second water outlet hole are formed in the detection device, the first water outlet hole and the second water inlet hole are connected through a first pipeline, and the first water inlet hole and the second water outlet hole are connected through a second pipeline; a flow deflector is arranged on the right side of the first water outlet hole. The flow deflector is arranged on the right side of the first water outlet hole, when water flow flows into the main pipeline from left to right, part of the water flow strikes the flow deflector after passing through the first water outlet hole, the water flow is changed into longitudinal flow from transverse flow, the water pressure at the first water outlet hole is increased, and the water flow more smoothly flows into the detection device from the first water outlet hole.

This invention discloses a low-temperature desolventizing machine and its usage method, relating to the field of grain and oil deep processing technology. The low-temperature desolventizing machine includes a machine body and a steam-water integrated utilization device. The machine body includes a cylinder and a rotating mechanism. The cylinder includes a front end cover and a rear end cover located at its front and rear ends. The cylinder also includes an inner cylinder, which is equipped with a feed inlet, a front settling tank, a solvent gas inlet, a rear settling tank, and a discharge outlet. An outer jacket is provided outside the inner cylinder, comprising an annular jacket and multiple flow-guiding jackets. The steam-water integrated utilization device is connected to the flow-guiding jackets and the annular jacket via pipelines and can provide hot water circulation and flash steam heating to the inner cylinder. This invention uses hot water and flash steam instead of steam heating, changing the traditional A-cylinder / B-cylinder desolventizing method, and solving the problems of high residual solvent content, low nitrogen solubility index, dark color, high powder content, and large moisture loss in low-temperature meal, greatly reducing solvent and steam consumption.

The utility model belongs to the technical field of test pit water injection test equipment, and discloses a test pit water injection test device capable of preventing external interference, the test pit water injection test device comprises a protection assembly and a test assembly, the protection assembly comprises a side enclosure frame and a cover plate, and the side enclosure frame forms a test area; one ends of the two cover plates are detachably connected with each other; the test assembly comprises a support, a water supply bottle and an iron ring piece. The two ends of the support are detachably connected with the two opposite sides of the side enclosure frame respectively. At least one water supply bottle is inversely arranged on the support, a water level gauge is arranged on the water supply bottle, and a water outlet of the water supply bottle is connected with the iron ring piece through a water pipe; the iron ring piece is arranged below the support and connected with the support through the connecting rope. The protection assembly is arranged on the test assembly, so that a wind-proof and external interference protection cover does not exist during construction site and field work; the problems that the amount of water permeating into soil cannot be accurately measured and recorded due to excessive water loss or great influence of environmental factors, the permeability coefficient of the soil is difficult to accurately measure, and the requirements on measurement precision and efficiency cannot be met in the prior art are solved.

The utility model belongs to the field of textile fabrics, particularly relates to a moisture-absorbing and quick-drying brocade and cotton blended antibacterial fabric, and aims to solve the problems that the existing textile fabric is poor in moisture-absorbing and quick-drying effect and is easy to adhere to the body after being influenced by sweat, and provides the following scheme: the moisture-absorbing and quick-drying brocade and cotton blended antibacterial fabric comprises a moisture-absorbing layer and a hydrophobic layer, the hydrophobic layer is fixed at the bottom of the moisture-absorbing layer, and the moisture-absorbing and quick-drying brocade and cotton blended antibacterial fabric is arranged in the moisture-absorbing layer. The moisture absorption layer comprises warp and weft, the warp and the weft are woven in a staggered mode, the weft comprises a plurality of cotton fibers and nano-silver ion fibers, the cotton fibers and the nano-silver ion fibers are spun in a twisting mode, and the warp is formed by a plurality of nylon fibers in a twisting mode. Meanwhile, the hydrophobic fiber with the cross section design can increase the specific surface area of the fiber and improve the moisture guiding capacity of the fiber, the nylon fiber with the butterfly-shaped section design has high porosity, pores provide capillary channels for guiding sweat and moisture, and the drying speed can be increased.

The invention discloses a gas-liquid two-phase flow pipeline section volume fraction measuring device and method, and relates to the field of gas-liquid two-phase flow measurement, the measuring device comprises a gas-liquid supply pipeline system, the gas-liquid supply pipeline system comprises a gas-liquid supply pipeline, the gas-liquid supply pipeline is connected with a liquid storage tank, a gas-liquid separation tank, a water pump, a fan, a liquid phase flow detector and a gas phase flow detector; and the detection pipeline system is arranged to be capable of detecting the content of gas and liquid after forming circular flow with the gas-liquid supply pipeline system. According to the method, the content rates of the gas phase and the liquid phase of the section of the gas-liquid two-phase flow pipeline are accurately measured in real time, the virtual height correction function of the moisture flow meter is perfected, key parameters are provided, the accuracy of the gas-liquid two-phase measurement result of the moisture flow meter is improved, and in the testing process of obtaining the virtual height correction function for the moisture flow meter, the accuracy of the gas-liquid two-phase measurement result is improved. The purpose that the testing device can provide real-time and accurate gas phase and liquid phase holdup is achieved.

The present embodiments relate to a steering control device and method. A steering control device may include a communication device configured to receive a steering angle sensing signal from a steering angle sensor installed at a lower part of a rack-pinion gear, a detector configured to detect whether of an inflow of moisture into a steering device based on the steering angle sensing signal and generate moisture detection information if the inflow of moisture is detected, and a controller configured to perform a risk prevention control to prevent risk due to the inflow of moisture based on the moisture detection information.

The application relates to the technical field of heat exchange equipment, and discloses a freeze-drying machine and a preparation process of freeze-dried sweetleaf chrysanthemum powder. The refrigerant provided by a compression refrigeration mechanism to each cooling support plate can lower the temperature inside a freezing cavity and maintain a low-temperature environment, and a negative pressure suction mechanism can suck the gas inside the freezing cavity, so that the negative pressure environment of the freezing cavity is maintained. The material inside each cooling tray is subjected to freeze-drying through the negative pressure and the low-temperature environment. During the freeze-drying process, external air is sucked in through an air flow cooling mechanism, and the external air is injected into the freezing cavity after being cooled by the refrigerant provided by the compression refrigeration mechanism. The air medium for the moisture flow inside the freezing cavity is provided, and the suction effect of the negative pressure suction mechanism promotes the discharge of the high-humidity gas inside the freezing cavity, so that the high-humidity environment in each region inside the freezing cavity is fully squeezed out through gas renewal, and the freeze-drying process inside the freezing cavity is promoted, and the freeze-drying effect is improved.

The invention provides an expansive soil moisture dynamic management and control device, and relates to the technical field of soil moisture management. A plurality of permeation assemblies; and a linkage assembly and a driving assembly. The device has the beneficial effects that when accumulated water is gathered on the ground, water in the upper soil layer is absorbed and discharged through the second permeation pipe on the upper portion, the problem that the air permeability and the water permeability of the upper soil layer are reduced due to expansion of the soil is effectively solved, and meanwhile the absorbed water flows into the first permeation pipe and is used for supplementing water into the lower soil layer; it is guaranteed that when plant roots grow downwards, water is provided for plants; under the condition of much rainwater, moisture in the upper soil layer is absorbed through the second permeation pipe, and the problem that the air permeability and the water permeability of the upper soil layer are reduced due to expansion of the soil is effectively relieved; under the drought condition, the soil of the bottom layer is humidified, water is provided for plant growth, and water absorbed by the soil of the upper layer is reduced.

The embodiment of the utility model provides a moisturizing drawer and a refrigerator, the moisturizing drawer comprises a drawer body, the drawer body is in sliding connection with a variable temperature chamber, and the top of the drawer body is provided with a first opening; the tray body covers the first opening, the tray body is movably connected with the drawer body, the tray body is movably connected with the temperature changing cavity, a second opening is formed in the top of the tray body, part of the bottom wall of the tray body is located in the drawer body, and part of the bottom wall of the tray body is lower than the first opening; the moisture permeable structure is arranged between the tray body and the drawer body, and air in the drawer body and air outside the drawer body flow through the moisture permeable structure. According to the technical scheme, the tray body on the upper portion is designed in a sinking mode, the moisture permeable structure is combined, the sealing performance of the drawer body is improved, and the problem of water loss of a traditional large-volume drawer is solved.

The invention discloses a system and a method for regulating and controlling the humidity of a cathode of an anode independent liquid supply AEM electrolytic bath. The system and the method are used for solving the problem of drying of a cathode film surface under high current density. The system comprises an electrolytic bath main body, a gas-liquid separation module and a humidification module. And an interface humidity adjusting layer is arranged in a cathode membrane electrode assembly of the electrolytic bath main body. Wet hydrogen produced by the cathode enters the gas-liquid separation module through the outlet to separate liquid water, and the liquid water is conveyed to the humidification module at the inlet end of the cathode and is converted into water vapor or fog drops to be mixed with hydrogen produced by the cathode to form humidified hydrogen backflow. Moisture in the humidified hydrogen is adsorbed by the interface humidifying layer and is uniformly diffused to a cathode film-electrode interface in the in-plane direction of the interface humidifying layer so as to maintain interface wetting. According to the method, independent moisture closed-loop circulation on the cathode side is constructed, so that self-regulation of the humidity of the cathode under the condition that external liquid supply is not needed is realized, the problems of moisture loss and non-uniform distribution caused by electroosmosis dragging are solved, and the operation stability and durability of the AEM electrolytic cell under high current density are remarkably improved.

The utility model discloses a drip irrigation device for recovering soil and vegetation in an arid region. The drip irrigation device comprises a header pipe, a plurality of branch pipes are distributed on the main pipe; one ends of the branch pipes away from the header pipe are connected with drip irrigation heads; the drip irrigation head comprises a spray head, the spray head is connected to the branch pipe, and a plurality of water outlet holes I are formed in the spray head; the spray head is sleeved with a shell, and a plurality of second water outlet holes are formed in the shell; and a sponge layer is arranged between the nozzle and the shell. Water is distributed into the branch pipes through the main pipe, the drip irrigation heads are connected to the ends, away from the main pipe, of the branch pipes, and the water can further flow into the spray heads of the drip irrigation heads. And a plurality of water outlet holes I and a plurality of water outlet holes II which are uniformly distributed on the spray head and the shell are used for preliminarily dispersing water. And a sponge layer is arranged between the spray head and the shell, so that external impurities can be effectively blocked, the impurities are prevented from entering the branch pipes from the water outlet holes I and the water outlet holes II, and blockage is avoided. And the water is uniformly and slowly dripped into the soil of the arid region, so that the recovery of the soil and vegetation is facilitated.

This utility model belongs to the field of archive storage technology, and in particular to an intelligent device for humidity purification and treatment in archive storage. It includes a constant humidity disinfection and purification integrated machine and a mobile water cart. Two mobile water carts are installed on the top of the mobile water cart, and a guide pipe is installed between the two carts. A connecting pipe is connected to the guide pipe. A side plate is sealed on one side of the connecting pipe, and a slope plate is provided on the inner wall of the connecting pipe. A drain hole and a slot connected to the drain hole are provided on the side plate. When water enters the connecting pipe, it first flows into a water distribution tank through the drain hole. As the water level in the water distribution tank rises, the float plate, driven by buoyancy, pushes the support rod up the push rod, thereby causing the insert plate to insert into the drain hole and slot to achieve a seal, blocking the water flow into the water distribution tank and guiding the water into the next water distribution tank. This allows for batch treatment of water, enabling continuous operation.

The utility model discloses recycled aggregate 3D printing concrete extrusion equipment, and relates to the technical field of 3D printing. The device comprises a discharging pipe, wherein a moisturizing mechanism and a stirring mechanism are arranged on the discharging pipe; and the moisturizing mechanism comprises a fixing plate fixedly connected to the top end of the discharging pipe, a fixing block is fixedly connected to the top face of the fixing plate, and a liquid pump is fixedly connected to the top face of the fixing block. By arranging the moisturizing mechanism, water can be sprayed to concrete in the discharging pipe by intermittently opening the liquid pump, concrete solidification caused by excessive water loss when the concrete is slowly discharged from the discharging pipe is prevented, and intermittent water spraying can ensure that the water of the concrete is kept at a proper proportion. According to the concrete spraying device, concrete can keep certain adhesive force, so that printing is smoothly conducted, the fixing ring, the spring and the valve ball are matched with one another, water can form water mist to be sprayed out, the water mist is fully attached to the concrete, and the water mist can be evenly mixed into the concrete.

The utility model relates to the technical field of feed production, and provides dust removal equipment for feed production, which comprises a box body and a spraying structure. By arranging the spraying structure, dust-containing gas enters the purification cavity from the air inlet pipe and is sprayed downwards through the atomizing nozzle, so that dust is in contact with water mist, water is attached to the dust, the dust removal effect is achieved, the dust falls into the dust collection drawer, and the dust removal effect is improved. By arranging the first filter screen and the second filter screen, water is filtered by the first filter screen, flows into the backflow pipe and returns into the water tank again, so that cyclic utilization of water resources is achieved, meanwhile, the first filter screen is conveniently cleaned by detaching the mounting block, and the interior of the first filter screen is prevented from being blocked; the loss of mixed water can be effectively prevented, meanwhile, the leakage of dust in the dust removal process is avoided, and the dust removal efficiency and effect are ensured.

The utility model relates to the field of color master batch drying, in particular to an energy-saving type drying device for drying color master batches, which comprises a heat preservation barrel, a support frame, a fixing frame, a top cover, a drying assembly and the like, the upper portion of the support frame is connected with the heat preservation barrel, the left side of the upper portion of the support frame is connected with the fixing frame, and the top cover is clamped on the heat preservation barrel. A drying assembly used for drying the color master batches is arranged between the heat preservation barrel and the top cover. Hot air enters the heat exchange cylinder to be cooled, air enters the air inlet pipe and is heated by the hot air generated during drying, so that the hot air enters the heat preservation cylinder, and meanwhile, moisture flows out of the connecting pipe, and therefore, the moisture can be brought out while the air generated during drying is used for heating the entered air; the drying efficiency is improved, the resource utilization rate is increased, energy consumption and waste are reduced, and the device is environment-friendly, energy-saving and convenient to use.

The utility model relates to a coil pipe water inlet and outlet structure for preventing a water hammer of a surface air cooler and a heating coil pipe, and belongs to the technical field. The device mainly comprises a mounting plate, a conveying straight pipe, a connecting bent pipe, a water inlet connecting pipe, a water inlet shunt pipe, a water inlet diverging pipe, a guide plate, a water outlet connecting pipe, a water outlet shunt pipe and a water outlet diverging pipe, fluid is guided into the water inlet diverging pipe through the water inlet diverging pipe and the guide plate, water flow is gradually expanded in the water inlet diverging pipe, the water flow speed can be effectively reduced, the fluid is dispersed through the water inlet diverging pipe, the water flow pressure is balanced, the fluid is evenly distributed in the conveying straight pipe, and the fluid flows in the conveying straight pipe. Communication between different conveying straight pipes is achieved through the connecting bent pipe, it is guaranteed that fluid is evenly distributed in the whole system, and finally the fluid flows out of the conveying straight pipes through the water outlet connecting pipe, enters the water outlet flow dividing pipe, is gradually expanded in the water outlet diverging pipe and finally flows out of the system.

The utility model relates to the technical field of heat exchange station exhaust, and discloses a heat exchange station pipeline exhaust device which comprises a heat supply pipe, an exhaust assembly is arranged on one side of the heat supply pipe, and the exhaust assembly comprises a gas distribution component arranged on one side of the heat supply pipe and a gas distribution component arranged on the other side of the heat supply pipe; and the cleaning part is arranged at the bottom of the gas distribution part. The pump is started, the pump pumps water from the water storage tank through the water pumping pipe, the water flows into the transverse pipe through the short pipe after passing through the pump, the transverse pipe distributes the water to the first water flow pipeline and the second water flow pipeline, the first valve is opened, the water in the first water flow pipeline enters the first exhaust valve vertical pipe, and the water flows in the first exhaust valve vertical pipe. Impurities attached to the valve and the first automatic exhaust valve are washed away; and the second valve is opened, water in the second water flow pipeline enters the gas collecting tank, the interior of the gas collecting tank and parts such as the second automatic exhaust valve are washed, and the effect that the exhaust valve cannot be blocked due to scaling caused by accumulation of impurities is achieved.

The invention relates to the technical field of reservoir numerical simulation application, in particular to a post-water-drive flow field evaluation method and device for water-drive development of a low-permeability volatile reservoir. The method comprises the following steps: determining a moisture flow field in a grid according to fluid parameters and grid thickness in the grid corresponding to an oil reservoir geologic model of a target low-permeability volatile oil reservoir; determining a residual reserve abundance field in the grid according to the fluid parameters and the saturation in the grid; determining a displacement intensity field in the grid according to the fluid parameters and the water flows in different directions in the grid; and according to the water flow field, the residual reserve abundance field and the displacement intensity field, evaluating the post-water-flooding flow field of the low-permeability volatile oil reservoir. The invention provides a whole set of scientific, reasonable and widely applicable grading evaluation method for characterizing and evaluating the seepage flow field of the water development low-permeability volatile reservoir.

The utility model relates to the technical field of constructional engineering facilities, in particular to an efficient heat preservation and moisture preservation maintenance cover which comprises a cover body capable of being assembled and used for a high-performance concrete floor, and detachable sealing end covers are arranged at the two ends of the cover body capable of being assembled. The cover body can be flexibly assembled according to the sizes of different concrete grounds through the plurality of groups of U-shaped covers which can be spliced, the inserting holes and the connecting inserting rods are respectively arranged at the four top corners of the two sides of each group of U-shaped covers, the connecting inserting rods are matched with the inserting holes in size, and the connecting inserting rods and the inserting holes are in interference inserting fit. The U-shaped covers can be tightly connected, inserting columns which are matched with the inserting holes in size and matched with the inserting holes in an inserting mode are installed at the four top corners of one side of the sealing end cover, it is ensured that the sealing end cover and the U-shaped covers are tightly sealed, and heat and water loss in the maintenance process is effectively prevented. Fixing feet are symmetrically arranged on the two sides of the U-shaped cover, so that the cover body can be stably fixed to the concrete ground conveniently.