74results about How to "Reduce construction" patented technology

The invention discloses a coal underground gasification mining front and rear furnace common well continuous coordination propulsion method which comprises the following steps: S1, constructing a gas inlet well and a gas outlet well of a first furnace, and performing gas injection fracturing on a gasification to-be-mined area of the first furnace by using the gas outlet well; s2, coal seam combustion gasification operation is conducted on the gasification to-be-mined area of the first furnace, and synthesis gas is collected through a gas outlet well of the first furnace; meanwhile, a gas outlet well of the second furnace is used for conducting gas injection fracturing on the gasification to-be-mined area of the second furnace; s3, the combustion space area of the first furnace is made to be idle for cooling, meanwhile, the second furnace conducts combustion gasification operation, and the third furnace conducts gas injection fracturing operation; each furnace is subjected to a flow process of gas injection fracturing, combustion gasification, idle cooling and CO2 storage well closing treatment; and S4, completing each flow process in sequence. The upper furnace and the lower furnace carry out difference node follow-up according to the flow process by one flow node, the upper furnace and the lower furnace carry out well sharing, the number of drilled wells is reduced, geological damage is relieved, and the mining efficiency is improved.

The invention discloses a coal underground combustion gasification and carbon dioxide sequestration mining treatment method. The method comprises the steps that S1, gas injection fracturing is conducted, specifically, fracturing gas is introduced through a gas outlet well to enable a coal seam corresponding to a gasification to-be-mined area to form a fracturing seam net; s2, combustion gasification: taking the bottom end of a gas inlet shaft of the furnace to mountain gas and the bottom end as a mining direction, discharging gas from the furnace, and discharging synthesis gas; and S3, sealing and closing the well: injecting carbon dioxide serving as displacement gas into the space to be sealed through the gas inlet well, collecting mixed gas through the gas outlet well, and then injecting high-pressure CO2 gas into the space to be sealed for sealing treatment. According to gas injection fracturing of a single furnace, a horizontal fracturing gas injection channel is adopted for carrying out gas injection fracturing treatment on the gasification to-be-mined area of the furnace located above to form a fracturing crack net, the upper furnace well and the lower furnace well can be jointly subjected to difference node follow-up according to the flow process and the difference of one flow node, and the sealing difficulty of the well and a combustion space area is reduced; and the mining efficiency is improved.

The invention provides a construction method for a middle pier of an overpass bridge in a widening and traffic keeping state of an expressway. The construction method comprises the following steps: dividing a site; issuing traffic information; traffic layout; adjusting a marked line; performing protection installation; mechanically entering the field; breaking and removing a middle division belt; pile foundation construction; constructing a bearing platform; constructing a bent cap in a bracket erection process form; carrying out support edge protection construction; and erecting the prefabricated box girder. By means of the construction method, construction of the upper-span bridge middle piers can be orderly, effectively and rapidly conducted in the state that the two sides of the expressway are widened and traffic is guaranteed, the expressway quality and safety acceptance standards are met, the requirements for whole-line staged traffic guiding and changing nodes and efficient construction are met, the traffic pressure on the existing expressway is reduced, and traffic safety is guaranteed.

The invention discloses an electric vehicle ordered charging and discharging control method based on an improved differential evolution algorithm. The method comprises the following steps: constructing a probability model of an electric vehicle charging behavior through a Monte Carlo method; demand analysis and electric vehicle dispatching feasibility judgment are carried out by acquiring power grid information and charging electric vehicle information; considering the power grid operation safety risk and the user credit rating, and formulating a dynamic electricity price; establishing a charging and discharging control model by taking minimization of the comprehensive cost of the user and the construction cost of the power grid as a target; and an improved differential evolution algorithm is adopted to solve the model to obtain the optimal electricity price and the optimal charging and discharging strategy, so that the operation efficiency and the economical efficiency of the power system are improved. The method effectively overcomes the defects of flexibility and cost of an existing electricity price strategy and the defects of dynamic electricity price making in the aspect of user credit, can effectively cope with power grid load fluctuation, and promotes coordinated development of the electric vehicle and the power grid.

An integrated desulfurization and decarbonization blast furnace gas treatment system comprises an adsorption device, a post-adsorption cyclone separator and a screening device or a two-stage desorption device. The adsorption device comprises a first adsorption material inlet, a second adsorption material inlet and a blast furnace gas inlet which are formed in the lower part or the bottom, and an outlet formed in the upper part or the top. And the post-adsorption cyclone separator is provided with an inlet, a gas outlet and a solid outlet. And an outlet of the adsorption device is connected with an inlet of the post-adsorption cyclone separator. And a solid outlet of the post-adsorption cyclone separator is connected to the screening device or the two-stage desorption device. Two adsorption materials are conveyed into the adsorption device at the same time to achieve synchronous removal of sulfur and carbon, separation of the two adsorption materials is achieved through the screening device, and then separation of two desorption gases is achieved, or separation of the two desorption gases is achieved through the two-stage desorption device, so that the separation difficulty of the desorption gases H2S and CO2 is greatly reduced, and the separation efficiency of the desorption gases H2S and CO2 is improved. And the treatment process of pollution reduction and carbon reduction of the blast furnace gas is effectively simplified.

The invention discloses a data service network site selection method in a fuzzy environment. The method comprises the following steps: acquiring a data service network in the fuzzy environment; the data service network comprises an intelligent community, a data analysis station, a communication base station and a data service center; minimizing data transmission consumption in the data service network as an optimization target of data service network site selection, and setting constraint conditions for the optimization target to form a data service network site selection optimization model; converting the data service network site selection optimization model to obtain a converted optimization model; and determining an optimality condition of the converted optimization model, and solving the converted optimization model by adopting a neurodynamics algorithm to obtain an optimal location of the data service network site selection. According to the method, the optimal data service network site selection position can be effectively found, and the communication load of the data service network in the fuzzy environment is improved.

The present invention relates to the technical field of abandoned mine transformation, and provides an air column elimination device for underground water reservoirs used in abandoned mines, including a three-way pipe fitting, a float device is provided directly below the lower port of the three-way pipe fitting, the float will block the port when receiving buoyancy, and fall off the port after the buoyancy is eliminated, and the other two ports of the three-way pipe fitting are respectively connected to ventilation pipes. A method for eliminating air columns in underground water reservoirs used in abandoned mines is also disclosed, and the steps are as follows: one side of the ventilation pipe leads to the top plate position at the highest point of the tunnel, and the other side of the ventilation pipe leads to the return air connection lane of the abandoned mine mining area, and the three-way pipe fitting is located at the lowest point of the ventilation pipe. The beneficial effects are: low cost, can effectively solve the problem of offsetting the air column of the reservoir, and ensure the storage capacity of the underground water reservoir of the abandoned mine.

The utility model relates to a leakage-proof water-blocking through-wall wiring device, which comprises two waterproof clamping plates and a long-axis bolt, wherein a connecting hole is formed in the center of each waterproof clamping plate; a long-axis bolt penetrates through the connecting hole in the center of one waterproof clamping plate, the through-wall hole of the wall body and the two ends of the connecting hole in the center of the other waterproof clamping plate, and the inner side disc faces of the waterproof clamping plates are compacted on the wall face through nuts; a patch board is arranged in an inner area and an outer area around a center hole of the waterproof clamping plate, a plurality of binding posts are distributed on the patch board and penetrate through the patch board, only binding posts are reserved on the inner side and the outer side of the waterproof clamping plate, a protective cover is arranged outside the waterproof clamping plate, and a cable threading hole is formed in the protective cover. According to the utility model, the requirements of leakage prevention and water resistance can be met, and the construction amount can be reduced.

The invention relates to a communication control method and device, computer equipment, a readable storage medium and a program product, which are applied to a control unit, are arranged in a system in which a ground terminal and a low-altitude terminal coexist, and are used for dynamically combining a cellular unit and a cellular-free unit in the system. The control unit is in communication connection with all cellular base stations on a flight path of the low-altitude terminal; the method comprises the following steps: determining a target cellular base station meeting requirements from adjacent cellular base stations according to network performance index values of the adjacent cellular base stations located around a low-altitude terminal and sent by the low-altitude terminal; adjusting the type of the target cellular base station to a mixed base station comprising a cellular unit and a non-cellular unit; wherein the ground terminal is served by the cellular unit, the low-altitude terminal is served by the non-cellular unit, and wireless resources are dynamically shared between the cellular unit and the non-cellular unit in the hybrid base station. By adopting the method, the same-frequency interference when the ground network and the low-altitude network coexist can be reduced.

The utility model provides a modularized high-efficiency energy distribution unit. The modularized efficient energy distribution unit comprises a water distribution main pipe, an emergency ball valve and a first electromagnetic valve are arranged at the bottom of the water distribution main pipe, a pressure sensor is installed on the first electromagnetic valve, a first ball valve is installed on the pressure sensor, a pressure difference adjusting valve is connected to the water distribution main pipe, and a second ball valve is installed on the pressure difference adjusting valve. The differential pressure adjusting valve is connected with a water collecting main pipe, the top of the water distributing main pipe is connected with one ends of two first three-way pipes, the other ends of the first three-way pipes are connected with one ends of second three-way pipes, and the other ends of the second three-way pipes are connected with one ends of connecting pipes. And the other end of the connecting pipe is connected with one end of a low-resistance angle type filter. The modularized high-efficiency energy distribution unit provided by the utility model has the advantages that the PUE can be reduced, the problems of hydraulic balance of end equipment and limited installation space of an end ring pipe are effectively solved, the energy consumption is saved, the safety is improved, the construction and use cost is saved, and the cooling energy required by IT equipment can be stably and reliably provided to a target area.

The application discloses a kind of unmanned vehicle logistics directional relay network system and its coordination method, belong to intelligent logistics and unmanned vehicle application technical field, the system includes: multiple cellular airspace units, cellular airspace unit is constituted continuous grid in service area;Deployed in the center of each cellular airspace unit one micro hub, as the ground logistics node of corresponding unit;Wherein, each micro hub includes one terminal nest and at least two relay nests;Terminal nest is used to provide the storage and withdrawal interface of user goods;Each relay nest is arranged around terminal nest, and each relay nest is pre-allocated and fixedly responsible for the bidirectional goods transfer task between the unit where the micro hub is located and a particular adjacent unit;Terminal nest and each relay nest are connected by internal logistics transmission device 103.The application fundamentally simplifies scheduling and management complexity by deep coordination of cellular airspace grid, heterogeneous node division of labor, directional routing rules and high automation.

The invention discloses a smoking behavior recognition method based on multi-source perception and particle size fingerprint analysis, which comprises the following steps: arranging a particulate matter sensor module, continuously collecting a multi-channel particle size spectrum in a target space in a non-optical mode, and generating a high-resolution particle size distribution sequence according to time; an infrared sensor module is arranged to monitor entering and leaving states of personnel in real time; the short-term change of the concentration distribution of the particulate matters with different particle sizes is calculated through a parameterization formula, and the accurate judgment of the smoking event is realized in combination with the personnel state and the PM2.5 speed increase in the same period. According to the invention, the infrared sensing data stream and the particulate matter concentration data stream are deeply analyzed, and the on-site state of personnel and the specific fluctuation mode of cigarette smoke are accurately identified; through cross cooperation verification of multi-dimensional features, interference of water vapor, mosquito-repellent incense and non-artificial smoke sources can be effectively eliminated, and unification of high detection precision and low false alarm rate is achieved. According to the method, imaging equipment is completely abandoned, and the risk of privacy disclosure is avoided from the source.

This invention discloses a pretreatment method for ecological prevention and coordinated emergency response to colluvial deposits and landslide dams on riverbanks. It utilizes mature trees planted vertically at the slope toe, intersecting with horizontally planted mature trees on the slope surface to form a framework of living trees. Simultaneously, waterproof soil bags filled with rock and soil fragments are used to construct soil pillars or walls, providing support for the horizontally planted mature trees. The framework of living trees and the soil pillars or walls together form a retaining structure to prevent potential landslide impacts. The spaces between the soil pillars or walls create a drainage channel for the landslide dam, collectively providing ecological prevention and coordinated emergency response to colluvial deposits and landslide dams on riverbanks. This invention can replace the post-treatment technology of emergency excavation of spillways after landslide dam formation. By pre-constructing the drainage channel before the dam forms, it achieves ecological protection of riverbanks, reduces the risk of landslide damming, and is easy to construct.

The application provides a prefabricated shear wall and a prefabricated shear wall connecting structure, and relates to the technical field of building engineering. The prefabricated shear wall comprises a wall body, the wall body has a connecting groove penetratingly arranged along the height direction of the wall body on one side, the two sides of the connecting groove are long connecting side walls and short connecting side walls, the length of the long connecting side wall is greater than that of the short connecting side wall in the length direction of the wall body, and the wall body further comprises a plurality of supporting assemblies arranged in the connecting groove in the height direction. The node connecting assembly comprises a plurality of annular lap joints, one end of the annular lap joint can be inserted into the connecting groove and lap-jointed with the supporting assembly, and the other end of the annular lap joint is arranged outside the connecting groove. The technical scheme can realize the prefabricated shear wall without auxiliary formwork in diversified splicing, and can solve the problems of low construction efficiency and high cost.

The invention relates to the technical field of tunnel construction, in particular to a construction method of an integrated bundled pipe curtain capable of removing and jacking obstacles at obstacles. The method specifically comprises the following steps that a circular jacking pipe and a square obstacle removing pipe joint are provided, and the square obstacle removing pipe joint is installed at the rear end of the circular jacking pipe; tunneling is carried out at the position of an existing obstacle through the circular jacking pipe, and the square obstacle removing pipe joint is driven to gradually approach the design position; after the square obstacle removing pipe joint reaches a designed position, jacking the square standard pipe joint; and the two adjacent square obstacle removing pipe joints and the square standard pipe joints are fixedly connected. The obstacle clearing and jacking integrated device has the beneficial effects that the round jacking pipe is arranged at the front end of the square obstacle clearing pipe joint, so that the round jacking pipe can cut the existing obstacle, meanwhile, the round jacking pipe drives the square obstacle clearing pipe joint to gradually approach to the designed position in the tunneling process, and thus obstacle clearing and jacking integration is achieved.

The invention discloses a highway slope settlement measurement method fusing GNSS and InSAR, and belongs to the technical field of geodetic survey and geological disaster monitoring, and the method comprises the steps: obtaining an earth surface dielectric characteristic fingerprint representing the electrical characteristics of a slope surface through calculation; calculating to obtain subsurface structure characteristic fingerprints representing slope subsurface structure characteristics; constructing a double-fingerprint coupling diagnosis model of a physical process for associating the earth surface dielectric characteristic fingerprint with the subsurface structure characteristic fingerprint, wherein the double-fingerprint coupling diagnosis model is configured to output a diagnosis result based on a change mode of the input fingerprint; the surface dielectric characteristic fingerprints and the subsurface structure characteristic fingerprints serve as coupling fingerprints to be input into a double-fingerprint coupling diagnosis model for calculation, and internal state parameters representing the loosening degree of the soil structure in the slope are obtained; the stability early warning information of the target slope area is generated, and the instability risk of the internal structure of the slope can be recognized in advance in a non-contact and large-area mode before macroscopic settlement of the slope occurs.

This utility model discloses a deep cone thickener for emergency treatment of rare earth ore mother liquor, comprising a thickener and a flocculant mixing tank. The thickener is equipped with a mother liquor inlet pipe, a supernatant outlet pipe, a delivery pipe, and a lead pipe. The lead pipe is equipped with a water valve, and its upper end is connected to the supernatant outlet pipe, while its lower end is connected to the flocculant mixing tank. The flocculant mixing tank is connected to the mother liquor inlet pipe via the delivery pipe. The upper end of the lead pipe is positioned above the lower end of the flocculant mixing tank. This utility model has advantages such as convenient layout, cost-effectiveness, and the ability to provide emergency flocculant preparation during water outages. Furthermore, by connecting the flocculant to the mother liquor pipe and allowing it to enter the deep cone thickener along with the mother liquor, the mother liquor and flocculant are thoroughly mixed.

The utility model discloses a pressure relief opening capable of preventing radiation leakage. The pressure relief opening comprises a radiation source, a concrete baffle, a mechanical pressure relief device and a pressure relief hole, the radiation source is arranged on the ground in a room, a pressure relief hole is formed in a wall of the room, a concrete baffle is arranged at the position, located at the pressure relief hole, of the wall to form a ventilation channel, the radiation source is communicated with the ventilation channel, the section of the concrete baffle is in an L shape, the concrete baffle is coated with a lead sheath protection layer, and the opening direction of the concrete baffle faces the upper side. A mechanical pressure relief device is arranged on the side, away from the concrete baffle, in the pressure relief hole. The pressure relief opening is simple in structure and convenient to implement, can effectively meet the protection requirement for preventing radiation leakage in a room provided with a radiation source, and has high practicability and popularization and use value.

The utility model relates to the technical field of rail transit pipe supporting, in particular to a rail transit pipe supporting device which comprises a cross rod and a connecting frame, the connecting frame is fixedly connected with the upper surface of the cross rod, a clamping assembly is arranged on the side surface of the connecting frame, and the clamping assembly comprises an assembling plate. The assembling plate is fixedly connected with the side surface of the connecting frame, the side surface of the assembling plate is fixedly connected with a guiding frame, the inner wall of the guiding frame is rotationally connected with a bidirectional lead screw, the side, away from the transverse rod, of the bidirectional lead screw is fixedly connected with a control frame, and the surface of the bidirectional lead screw is in threaded connection with a linkage frame; and the surface of the linkage frame is rotationally connected with a connecting arm. According to the supporting device, the clamping assembly and the shielding assembly are arranged, so that when the supporting device is used for supporting, the position of a pipeline can be preliminarily restrained, the problems that the pipeline deviates in the construction process and interferes construction of constructors are solved, and the functionality of the supporting device is improved.

The utility model discloses an ethylene oligomerization treatment heat recovery system, and relates to an ethylene oligomerization waste heat recovery device. Comprising a de-heavy tower, a reflux tank, a reaction product pipeline, a first heat exchanger and a de-heavy tower top pipeline, the de-heavy tower top is connected with the reflux tank through the de-heavy tower top pipeline, the de-heavy tower top pipeline is connected with one side of the first heat exchanger, and the reaction product pipeline is connected with the other side of the first heat exchanger. By utilizing the cooperation of the de-heavy tower top pipeline and the first heat exchanger, the material waste heat at 127 DEG C at the top of the de-heavy tower is fully utilized, so that the reflux temperature of the material at the top of the tower can be obviously reduced, the steam required by flash evaporation and impurity removal of the ethylene oligomerization product can be reduced, the energy consumption is reduced, and the dependence of the reflux of the material at the top of the de-heavy tower on an air cooler is reduced; and the construction and maintenance cost is reduced.

The utility model relates to the technical field of civil engineering, in particular to an impact-resistant assembly type pre-stressed anchor rod foundation which is characterized in that when the impact-resistant assembly type pre-stressed anchor rod foundation is used, a plurality of groups of prefabricated part main bodies are stacked, the prefabricated part main bodies with large areas are arranged below the prefabricated part main bodies with small areas, and the plurality of groups of prefabricated part main bodies are connected in series from top to bottom by pre-stressed steel strands; the anchor rod holes in the prefabricated part bodies coincide and are used for installing anchor rods, the multiple sets of threading holes in the prefabricated part bodies coincide, the multiple coincide threading holes are used for allowing prestressed steel strands to penetrate through, anchor rod foundation construction is shortened, cost is reduced, and meanwhile impact resistance is improved. Comprising a plurality of prefabricated part bodies which are stacked, the area of the upper prefabricated part body is smaller than that of the lower prefabricated part body, a set of anchor rod holes are formed in the center of each set of prefabricated part body, and a plurality of sets of threading holes are formed in each set of prefabricated part body in the axial circumferential direction.

The utility model discloses a steel plate foundation for a two-plate injection molding machine, and relates to the technical field of injection molding machine foundations. The foundation steel plate is provided with a plurality of fixed connecting pieces, and the fixed connecting pieces are transversely distributed on the two sides of the foundation steel plate; a plurality of anti-vibration sizing blocks are transversely distributed on the foundation steel plate. The steel plate is adopted as the foundation, injection molding machine equipment to be installed only needs to be fixedly installed on the foundation steel plate through the corresponding fixing connecting pieces according to needs, maintenance is not needed, the machining period is short, the construction process of a traditional foundation is omitted, the operation process is greatly simplified, the construction threshold is lowered, and cost is greatly reduced; and when the machine equipment needs to be moved, only the foundation steel plate needs to be moved to the corresponding position, then the machine equipment is installed on the foundation steel plate again, a foundation does not need to be made again, and the difficulty of moving the machine is greatly reduced.

The invention discloses an integrated well structure taking water from the lower portion and recharging the upper portion and a construction method, and aims to reduce the water level in a foundation pit, and solve the phenomenon of consolidation and sinking of a soil body by adopting a tube well dewatering and peripheral recharging well supplementing method. In order to effectively solve the problem of a working face on a construction site, a well wall structure is invented, water is taken from the lower portion, recharge is conducted on the upper portion, the water head pressure at the bottom of a foundation pit is effectively released, and the gushing phenomenon at the bottom of the pit is reduced. Meanwhile, the damage to the side wall enclosure structure of the foundation pit caused by water streaming can be reduced, the burial depth part of the aquifer is defined, construction precipitation is conducted in a targeted mode, exploitation of underground water resources is reduced, electric energy and water resources are saved in green and environment-friendly construction, and the construction cost is reduced. And peripheral building cracking, ground subsidence and underground pipeline fracture caused by stratum consolidation brought by rainfall are reduced, the construction working face is effectively reduced, mutual interference between different working procedures is reduced, and the space working face is saved.

A distributed source-based full-scale treatment and resource utilization method for domestic waste based on a full-scale treatment and resource utilization integrated machine for domestic waste belongs to the field of domestic waste treatment and resource utilization. After the domestic waste at the source is sorted, the recyclable waste is recycled and sold, the slag inert waste is used as construction waste resource utilization, and the remaining domestic waste is sent to the full-scale treatment and resource utilization integrated machine for domestic waste; the ammonia-containing clean water produced after being treated by the full-scale treatment and resource utilization integrated machine for domestic waste is used for land utilization, the ash produced is used as construction waste resource utilization, and the light oil produced is sold as oil products. The present invention can realize the source treatment of domestic waste and the resource utilization of all components, save more than 80% of transportation costs, eliminate the construction of transfer stations, waste incineration plants and landfills, save a lot of land resources, and realize the full resource utilization of domestic waste.

The application discloses an antenna and antenna cover electric performance interval analysis method based on support function summation, relates to the technical field of radar antennas, and comprises the following steps: acquiring the nominal complex excitation of each array element of the antenna and the amplitude and phase interval of the excitation of each array element; obtaining the amplitude and phase interval of the equivalent transmission coefficient of each grid; constructing a general far-field interval model about the far-field complex value of each observation direction of the antenna and the antenna cover, and obtaining the uncertain far-field contribution of each unit in each observation direction; obtaining the first far-field amplitude upper and lower bounds in each observation direction; determining the second far-field amplitude upper and lower bounds in each observation direction; constructing an error index based on the first far-field amplitude upper and lower bounds and the second far-field amplitude upper and lower bounds in each observation direction, and judging whether the second far-field amplitude upper and lower bounds meet the accuracy requirement based on the error index and a preset accuracy threshold; and if yes, outputting a directional diagram interval and an electric performance index interval. The scheme improves the analysis efficiency.

The present application discloses a domain name resolution method, device, electronic device and storage medium, and relates to the field of Internet technology. The method comprises: a public network server receives a domain name resolution request sent by a first object, wherein the domain name resolution request carries target domain name information. Since the database corresponding to the public network server records: at least one domain name information and an associated IP address corresponding to each internal network established in the public network, the public network server can directly obtain the target IP address associated with the target domain name information based on the target domain name information and the mapping relationship between the domain name and the IP address preset for each internal network in the database, and return the target IP address to the first object, thereby eliminating the need to build a domain name server in each internal network, thereby effectively reducing the network construction cost and the network operation and maintenance cost, and on the other hand, effectively improving the resolution efficiency of resolving the target domain name information.

The utility model discloses a pipe-in-pipe water return device which comprises a pipe body, a partition plate, a conversion valve and a connecting piece. The pipe body comprises an L-shaped pipe body and a straight pipe body, the L-shaped pipe body and the straight pipe body are divided into an input cavity and a backflow cavity by the partition plate, and the outer wall of the L-shaped pipe body and the outer wall of the straight pipe body are coated with thermochromic coating; the connecting piece comprises a pipe body connecting piece and an adaptive connecting piece, the L-shaped pipe body is communicated with the straight pipe body through the pipe body connecting piece, one side of the straight pipe body is connected with the adaptive connecting piece, and the other side of the L-shaped pipe body is connected with the conversion valve; the conversion valve is located at the first end, away from the straight pipe body, of the L-shaped pipe body and comprises a valve body, a valve element and a flow turning ring. The adaptive connecting piece comprises an adaptive connecting plate, an adaptive upper bottom surface and an adaptive lower bottom surface; adaptive left through holes corresponding to the input cavity and the backflow cavity respectively are formed in the adaptive lower bottom surface; and the straight pipe body middle partition plate is clamped to the adaptive connecting plate. According to the utility model, the additional laying design and construction of the water return pipeline can be reduced, and the design workload and laying workload are reduced.

The present invention discloses a disposable portable simple toxic drug dispensing table, comprising a dispensing frame, the dispensing frame is foldable, a support assembly is fixedly connected to the outer wall of the dispensing frame, a support mechanism is arranged on the support assembly, and the support mechanism is located above the dispensing frame; a transparent soft capsule is fixedly connected to the inner wall of the dispensing frame, an operation port and an infusion port are arranged on the side wall of the transparent soft capsule, and a drug dispensing port is arranged on the top of the transparent soft capsule; a sealing member is fixedly connected to the operation port, and the sealing member is located inside the transparent soft capsule. The present invention can improve the sealing and firmness of the disposable portable simple toxic drug dispensing table, thereby improving the dispensing efficiency of medical staff, protecting the personal safety of medical staff in the process of dispensing and reducing pollution to the surrounding environment.

This utility model discloses a co-construction pier for bridges and fully enclosed sound barriers, comprising a co-construction platform located at the median strip under the bridge, with two symmetrically arranged pile foundations at the bottom of the platform. The length of the platform is distributed along the longitudinal direction of the bridge, and a bridge pier column for connecting the bridge columns is located in the middle of the top of the platform. An anchorage for connecting the steel columns of the fully enclosed sound barrier is located at each end of the top of the platform along its length. Compared with traditional separate construction, this co-construction pier allows the expanded bridge and the fully enclosed sound barrier to share a single platform and two pile foundations, reducing the construction of two pile foundations, reducing land occupation, lowering costs, and improving construction progress. Furthermore, the co-construction of pile foundations and the separate use of columns allow the bridge columns and the steel columns of the fully enclosed sound barrier to bear forces independently, reducing deformation interference and solving the problem of inconsistent deformation between concrete and steel structures.

The invention discloses a river embankment gate bridge connected with a river beach, belongs to the field of water conservancy projects, solves the problem that a sightseeing person inconveniently enters and exits from the river beach, and also has a flood control function. A notch is formed in a river bank, a bridge body is arranged at the notch, an assembled bulkhead gate is detachably installed at a bridge opening of the bridge body, a bridge body bottom plate is arranged at the bottom of the bridge opening, and the bridge body bottom plate leads to a river beach. The gate bridge is arranged at the river embankment, the bridge and the gate are integrally designed, the detachable assembled bulkhead gate is adopted, a channel of the river embankment is opened, pedestrians and vehicles can conveniently enter and exit a river beach, the flood control function of the river embankment is not affected while the traffic function is met, and the channel can be effectively closed in the flood season, flood backflow is prevented, and city safety is protected.