199results about How to "Low construction cost" patented technology

The invention belongs to the technical field of pipeline construction, and particularly relates to a pipeline lowering assembly line in a plain area and a construction method.The assembly line is arranged at the front end of the starting end of pipe ditch excavation, and the assembly line is sequentially connected with a pipeline frame, a welding platform, a flaw detection platform, a joint coating platform, a pipe ditch support and a tractor in series through a conveying device; a pipeline is stored through the pipeline rack and conveyed to the welding platform for welding connection, welding quality detection is carried out on the flaw detection platform, anti-corrosion treatment is carried out on the joint coating platform, finally, the pipeline enters a pipe ditch through the pipe ditch support and then is connected to the bottom of the excavator through the tractor, and the excavator drags and distributes the pipeline. The problems that the road width is too large and the construction period is too long in traditional pipeline lowering are solved, the construction site can be saved, the construction efficiency is improved, and the construction cost is reduced.

The invention provides a road surface illumination detection system and method based on machine learning and visual identification. The system comprises: an image acquisition module obtains an image to be analyzed by using a machine learning method; the semantic segmentation module performs semantic segmentation on the to-be-analyzed image to obtain a road region image; and the illumination prediction module performs multi-dimensional feature extraction by using a feature extraction model, and inputs the extracted image features into a self-defined multi-layer neural network regression model for training and prediction to obtain the average illumination and illumination uniformity of the road surface. The method comprises the following steps: S1, acquiring a road image in real time; s2, performing semantic segmentation on the to-be-analyzed image to obtain a road region image; and S3, inputting the extracted image features into a self-defined multi-layer neural network regression model for training and prediction to obtain the average illumination and the illumination uniformity of the road surface. According to the method, the existing road monitoring system or image acquisition equipment is utilized, and an advanced machine learning algorithm is combined, so that efficient and accurate road surface illumination detection is realized.

The invention discloses a mass concrete composite anti-crack structure and a crack control construction method based on the mass concrete composite anti-crack structure. The composite anti-crack structure comprises a core common concrete layer, an outer side anti-crack concrete layer, a reinforcing mesh arranged between the core common concrete layer and the outer side anti-crack concrete layer, and a top anti-crack concrete layer. The method comprises the steps that firstly, the thickness of side face anti-crack concrete and the thickness of top face anti-crack concrete needing to be poured are calculated according to cracking risk assessment, the side face anti-crack concrete is poured firstly, then core common concrete is poured, and it is ensured that the pouring height of the side face concrete is always 20-30 cm higher than the core common concrete; and then the top surface is completely constructed by adopting anti-crack concrete. The reinforcing mesh subjected to special treatment is adopted, so that the overall stress of the composite structure is uniform, the overall anti-cracking performance and durability of the composite structure are improved through the outer side anti-cracking concrete, the construction technology is simple, meanwhile, a large amount of construction cost and operation and maintenance cost can be saved, and the composite structure is suitable for application and popularization.

The invention belongs to the field of ocean engineering and floating body structures, discloses a modularized movable variable-structure floating body platform and an operation method thereof, and is suitable for multi-scene application of short-term or temporary operation on the sea. In the towing process of the platform, chain type arrangement is adopted, all floating body units are connected through spherical hinge connectors, water resistance is effectively reduced, towing efficiency is improved, and safe transfer is achieved through a tugboat and an auxiliary boat. After the platform arrives at a target area, the platform flexibly adjusts the floating body units through the tugboats, the auxiliary boats, the mechanical arms and the connecting rods, chain type arrangement is changed into an array type structure, stable multi-column arrangement is formed, and different operation requirements are met. Due to the modular design, the platform has high expansibility and is convenient to maintain and recombine. The marine floating body platform is flexible, low in cost and environmentally friendly, has high wind wave resistance and wide application prospects, and is particularly suitable for various temporary marine operations such as marine monitoring, equipment installation and marine emergency.

The invention provides a steel net rack platform integral installation type offshore photovoltaic supporting structure, a net rack platform is arranged on a pile foundation structure, the net rack platform is provided with an upper plane frame and a lower plane frame in a layered manner, and the surface of the upper plane frame is connected with a photovoltaic module; the upper plane frame comprises upper chord members which are connected with each other, the lower plane frame comprises lower chord members which are connected with each other, the upper chord members are connected through ball joints, the lower chord members are connected through ball joints, and inclined rods are connected between the ball joints of the upper plane frame and the ball joints of the lower plane frame. Connecting sections are arranged at the end parts of the chord members, the lower chord members and the inclined rods; and connecting parts matched with the connecting sections are arranged in the spherical joints. The rod pieces in the net rack platform are connected through the ball joints and are in threaded connection together to form the net rack platform, the net rack platform does not need to be welded, the length of the bolts can be adjusted, and therefore the net rack platform is convenient and rapid to assemble.

The invention discloses a raw water purification treatment system and a working method thereof, and solves the problem of how to design water treatment equipment which is simple in structure and small in occupied area. Comprising a raw water storage tank (1), the raw water storage tank (1) is connected with a water guide pipe (2), the other end of the water guide pipe (2) is connected with a water collecting pipe (8), the water collecting pipe (8) is connected with a cyclone separation device used for clarifying raw water, and the water guide pipe (2) is sequentially connected with a water outlet valve (3), a booster pump (4), a pressure gauge (5), a pump valve (6) and a pipeline mixer (7) in series. A coagulant filling pipe (9) is arranged on the water guide pipe (2) between the water outlet valve (3) and the booster pump (4); a coagulant aid filling pipe (10) is arranged at a water inlet of the pipeline mixer (7); the process of raw water dosing clarification is simplified, a clarification tank is replaced, and the site space and the construction cost of the clarification tank are saved.

The invention discloses a rapid assembly and split launching method for a shield tunneling machine in a narrow space, which comprises the following steps of: excavating launching holes in two sides of a launching shaft by adopting a mining method, pouring a guide table in the launching shaft, and mounting a launching bracket; a large crawler crane is used for sequentially hoisting a locomotive, a 6 # trolley, a 5 # trolley, a 4 # trolley, a 3 # trolley, a middle shield, a front shield, a cutterhead, an erector, a spiral conveyor and a tail shield, a counter-force frame is installed, a hoisting connecting bridge, a 2 # trolley and a 1 # trolley are hoisted, split starting is temporarily connected, pipe pieces are assembled, tunneling is conducted by 40 m, the 5 # trolley and the 6 # trolley are connected, and normal tunneling can be conducted after the whole shield machine is assembled. According to the invention, the technical problems of rapid assembly and split starting tunneling under the conditions of narrow space and tight construction period requirement in shield construction can be solved.

The invention discloses a method for treating nitrogen in high-nitrogen wastewater by using autotrophic denitrification. The method comprises the following steps: S1, adjusting the pH value of to-be-treated high-nitrogen wastewater to 7.0-8.0 and the total nitrogen concentration to be less than or equal to 1000mg / L; s2, heating the high-nitrogen-content wastewater subjected to pH regulation in the step S1, and heating to 25-35 DEG C; s3, the high-nitrogen-content wastewater heated in S2 enters an autotrophic denitrification device from the bottom at a constant flow rate, the load of an autotrophic denitrification filter material is controlled to be 0.3-0.8 kgTN / t.d, and the water inlet flow rate is controlled to be 0.5-8 m / h; s4, enabling the wastewater to pass through the upper effluent of the autotrophic denitrification device to meet the treatment requirements. The method has the advantages of simple treatment process, wide application range, high load, small land occupation, no need of mechanical stirring, no need of additional organic carbon sources, extremely low sludge yield, effective reduction of the construction cost and the operation cost, and significant economic and environmental benefits.

The invention discloses a pipe cleaning, pressure testing and baseline detection combined construction method for a deep sea composite pipe, which comprises the following steps: injecting fresh water into the composite pipe, keeping the water pressure, and preliminarily cleaning the composite pipe; pipe cleaning operation is conducted, and the composite pipe is cleaned again; performing a pressure test, and checking the sealing performance of the composite pipe; and performing baseline detection to detect metal loss in the composite pipe. Pigging pressure test and baseline detection of original staged construction are integrated into combined construction, a set of efficient, economical and safe submarine pipeline pigging pressure test detection process is formed, meanwhile, the requirement for integrity management of submarine pipelines is met, the construction process is simplified, the construction period is shortened, the construction cost is saved, and the economical efficiency is improved.

The utility model provides an offshore suspension cable photovoltaic cross pile type anchoring structure, which comprises a first anchoring pile and a second anchoring pile, the first anchoring pile is fixedly connected with a guide pipe, the guide pipe is obliquely inserted into the first anchoring pile, two ends of a wire conduit are communicated with the outside, the second anchoring pile is arranged in the guide pipe, and the guide pipe is fixedly connected with the guide pipe. By arranging the cross pile type anchoring structure, the horizontal bearing capacity is improved, the horizontal force borne by the anchoring structure is converted into the pressure of the second anchoring pile and the pulling force on the first anchoring pile, the bearing capacity of the pile bodies is exerted to the maximum degree, the pile bodies are connected in a welded mode, the concrete consumption is reduced, the offshore grouting procedure is omitted, and the construction cost is reduced. The first anchoring pile is firstly sunk, it is ensured that positioning is simple and accurate, due to the fact that the guide pipe is arranged, the second anchoring pile is convenient to install, only a pile sinking mechanism identical with the first anchoring pile needs to be adopted, the problem that special pile sinking equipment is used is avoided, pile sinking construction cost is saved, offshore construction procedures are simplified, and construction efficiency is improved.

The utility model discloses a safe temporary protection structure for top construction of a steel box girder, which comprises vertical insertion pipe fittings which are prefabricated at intervals along the length direction of the steel box girder and are connected to the edge position of the top of the steel box girder, and the height of the vertical insertion pipe fittings is not higher than that of a purline to be laid at the top of the steel box girder; protective vertical rods are detachably inserted into the vertical inserting pipe fittings, transverse protective part connecting parts are prefabricated in the positions, close to the tops, of the mutually-opposite side faces of every two adjacent protective vertical rods in a right-opposite mode, and a transverse protective part is connected between every two mutually-opposite transverse protective part connecting parts on every two adjacent protective vertical rods. The utility model aims to solve the problems of low efficiency and higher cost during site construction of the steel box girder.

The invention relates to the field of LNG operation, and discloses a micro honeycomb array tube bundle composite LNG gas-liquid mixing device and a method thereof.The micro honeycomb array tube bundle composite LNG gas-liquid mixing device comprises a boil-off gas inlet section, and boil-off gas enters the device through the boil-off gas inlet section; the forced mixing and dissolving cavity is arranged at the rear part of the boil-off gas inlet section, and a front partition plate is arranged between the forced mixing and dissolving cavity and the boil-off gas inlet section; the array tube bundle micro honeycomb tubes are uniformly distributed in the forced mixing and dissolving cavity to form an array tube bundle area, a microbubble generating cavity is arranged in the array tube bundle area, and the front end of the microbubble generating cavity is arranged on the front partition plate; the dispersed turbulence mixing cavity is arranged at the rear part of the forced mixing and dissolving cavity, a rear partition plate is arranged between the forced mixing and dissolving cavity and the dispersed turbulence mixing cavity, the forced mixing and dissolving cavity is incompletely isolated from the dispersed turbulence mixing cavity through the rear partition plate, and the rear end of the microbubble generating cavity is arranged on the rear partition plate; and the LNG outlet section is arranged at the tail end of the dispersed turbulent flow mixing cavity and is used for discharging the LNG reaching the liquid state rate of 100%.

The invention relates to the technical field of draw shaft dredging, in particular to a medicine bag conveying device for dredging a draw shaft and a draw shaft dredging method.The medicine bag conveying device comprises a platen installed at the bottom of the draw shaft, an installation hole is formed in the platen, a conveying assembly is arranged below the platen and comprises a hanging ring and a manual chain block, and the hanging ring is fixed to the bottom of the platen; the manual chain block is installed on the hanging ring, a supporting rod assembly is arranged in the draw shaft and comprises a plurality of sections of steel pipes which are arranged up and down, the steel pipes are inserted into the draw shaft from installation holes, hanging rope sleeve lugs are fixed to the side walls of the bottom ends of the steel pipes, and chain block hanging rope sleeves are sleeved on the hanging rope sleeve lugs. And a hook of the manual chain block is hooked on one side, far away from the hanging rope sleeve lug, of the chain block hanging rope sleeve. The steel pipe conveying device has the technical effect that the steel pipes in the draw shaft can be conveyed upwards conveniently.

The invention discloses an externally-wrapped concrete UHPC-stainless steel combined formwork air shaft structure and a construction method, the externally-wrapped concrete UHPC-stainless steel combined formwork air shaft structure comprises a UHPC-stainless steel combined formwork, staggered hole PBL shear keys, a reinforcement cage and external concrete, the UHPC-stainless steel combined formwork comprises a stainless steel cylinder and prefabricated UHPC, and the staggered hole PBL shear keys are arranged on the outer wall of the stainless steel cylinder. The performance advantages of a combined structure and an assembly type structure are combined, the rigidity and the bearing capacity of the UHPC-stainless steel combined formwork are enhanced, and the problems that a traditional stainless steel sheet is prone to deformation, bulging and protruding in the construction stage are effectively solved. Connection of the prefabricated UHPC, the stainless steel cylinder and external concrete is completed through the staggered hole PBL shear keys, the shear resistance between interfaces is improved, and cooperative work of all parts is guaranteed. The modular assembly type construction technology is adopted, the construction efficiency and the construction progress can be remarkably improved, the well wall thickness and the material consumption are reduced, and the method has remarkable performance advantages and wide application prospects in nuclear engineering structures.

The invention discloses a coke sampling and sample preparation system which comprises a sampling unit, a sample preparation unit, a refined sample unit and a waste material unit, and the sample preparation unit and the refined sample unit are arranged at the same horizontal position. The sample preparation unit comprises a rail robot which is used for transferring a sample collected by the sampling unit in the sample preparation unit and transferring the sample among the sample preparation unit, the refined sample unit and the waste material unit; and the refined sample unit comprises a fixed robot used for transferring the sample prepared by the sample preparation unit in the refined sample unit. The invention also discloses a sampling and sample preparation method. According to the coke sampling and sample preparation system and method, the maintenance cost caused by blockage and abrasion of the articulated chute is reduced, the breakage rate of coke particles in the long-distance conveying process is reduced, the authenticity and representativeness of the sample are further reflected, the equipment plane arrangement technology is achieved, civil engineering is reduced, the number of equipment is also reduced, and the production efficiency is improved. And the construction cost is reduced.

The invention discloses a UHPC (Ultra High Performance Concrete) formwork-honeycomb steel reinforced concrete composite structure wall based on modular construction, which is characterized by comprising a prefabricated UHPC formwork, and honeycomb H-shaped steel, a reinforcement cage and cast-in-place concrete which are positioned in the prefabricated UHPC formwork; honeycomb H-shaped steel is arranged in the height direction of the wall in a full-length mode, and reinforcement cages are arranged on the two sides of the honeycomb H-shaped steel in the horizontal direction. The prefabricated UHPC formwork shell is of a cavity structure with the upper portion and the lower portion open and the side direction closed and is formed by splicing a U-shaped UHPC formwork and a rectangular UHPC formwork or formed by splicing a U-shaped UHPC formwork, a rectangular UHPC formwork and an L-shaped UHPC formwork. The adjacent formworks are connected through the honeycomb H-shaped steel and the high-strength bolts. The wall bearing capacity can be remarkably improved, the steel bar area is effectively reduced, the steel bar binding workload is reduced, the construction period is shortened, meanwhile, the deformation capacity and the energy dissipation capacity of the wall under the earthquake action can be enhanced, components are connected through bolts, construction is convenient and fast, connection is reliable, and wide engineering application prospects are achieved.

The present invention discloses a superconducting magnetic separation sewage treatment system and method with a self-cleaning function, which relates to the technical field of sewage treatment, wherein the system includes: a superconducting magnet, a front-stage filter, a magnetic separation cavity, a rear-stage connecting pipe, an air compressor, an air-cooled compressor and a control cabinet; the superconducting magnet includes: a refrigerator cold head, a vacuum dewar shell, a cold screen and a superconducting coil winding; the magnetic separation cavity includes: a magnetic separation cavity shell, a magnetic filter, a magnetic material separation cavity and a magnetic pollutant discharge port. The present application generates a uniform magnetic field and a gradient magnetic field inside the magnetic separation cavity through a superconducting coil winding, so that after the magnetic pollutants are adsorbed on the magnetic filter, they can automatically move to the magnetic material separation cavity and be discharged under the action of the gradient magnetic field, thereby realizing the self-cleaning of the magnetic filter and improving the fluency and efficiency of the superconducting magnetic separation sewage treatment.

The present application belongs to the technical field of sewage treatment, and discloses a continuous flow aerobic granular sludge treatment device, which includes a pool A, a pool O, an aerobic granular sludge generating mechanism, a clear liquid discharge component and a reflux component, wherein the pool A constitutes an anaerobic pool, the pool O constitutes an aerobic pool, the pool O is arranged outside the pool A and extends along the circumference of the pool A, the bottom of the pool O is connected to the bottom of the pool A, the aerobic granular sludge generating mechanism is arranged inside the pool O and located at the outer edge of the pool O, a water inlet is arranged on the upper part of the aerobic granular sludge generating mechanism, the clear liquid discharge component has a water inlet end located inside the aerobic granular sludge generating mechanism and a drainage end extending to the outside of the pool O, the water inlet end is located above the water inlet, and the reflux component includes a first reflux pipe located in the pool O and connected to the aerobic granular sludge generating mechanism, and a second reflux pipe connected to the aerobic granular sludge generating mechanism and extending to the pool A.

The utility model discloses pulse type plasma deodorization and dust removal equipment which comprises a treatment box, a waste gas pretreatment mechanism is arranged on the left side of the treatment box, a pulse area is arranged in the treatment box, a pulse generator is installed at the corresponding position of the pulse area, the pulse generator is connected to the inner wall of the treatment box, a back flushing mechanism is arranged on the treatment box, and the back flushing mechanism is arranged on the back flushing mechanism. The treatment box is provided with an air outlet, the lower side of the treatment box is provided with a drain outlet, the treatment box is provided with a controller, and the pulse generator is connected with the controller. According to the utility model, a normal-temperature and normal-pressure reaction is realized, various mixed gaseous pollutants can be degraded at the same time, the modular structure is adopted, the installation is simple, the effect is not influenced by random start and stop, the intelligent control is realized without manual intervention, the maintenance is simple, the operation only consumes power, is controllable and adjustable, and secondary pollution is avoided.

The application discloses a kind of multi-gas source multi-user injection-production gas switching metering devices and processes for gas storage, and relates to the technical field of gas storage injection-production gas equipment, specifically to a kind of multi-gas source multi-user injection-production gas switching metering devices for gas storage, including gas field gas pipeline, low-pressure pipeline, injection-production gas pipeline, high-pressure pipeline, first gas recovery processing pipeline, second gas recovery processing pipeline;One end of the gas field gas pipeline is used to communicate with gas field, and the other end of the gas field gas pipeline communicates with the second gas recovery processing pipeline;The application provides a kind of multi-gas source multi-user injection-production gas switching metering devices and processes for gas storage, which is applied in gas storage, can realize the free switching measurement and interconnection of multiple gas sources and users in different injection-production cycles of gas storage, and realizes the standardization, serialization, integration, modularization and skid-mounted of the device, which can effectively reduce the construction period and construction cost.

A flue gas desulfurization device of desulfurization absorption tower external crystallization, comprising the following units, a flue gas desulfurization unit: comprising a main flue gas duct subunit, a desulfurization absorption subunit; a flue gas evaporation crystallization unit: comprising a secondary flue gas duct subunit, an evaporation crystallization subunit and a solid-liquid separation subunit connected in sequence; the desulfurization absorption subunit comprises a desulfurization absorption tower, a circulating pump, a circulating tank, a desulfurizer supply device, a process water supply device and an oxidizing air supply device; the main flue gas duct subunit comprises a pipeline connected to the desulfurization absorption tower as an inlet and outlet flue; a boiler induced draft fan and a damper are connected in series on the pipeline; one pipeline of the main flue gas is connected to the desulfurization absorption tower, and another pipeline is connected in parallel to a crystallization booster fan and a flue which is connected to the evaporation crystallization subunit; the evaporation crystallization subunit is additionally provided with two pipelines connected to the desulfurization absorption tower, one of which is used to introduce a desulfurization byproduct solution from the desulfurization absorption tower, and the other of which is used to return low-temperature flue gas to the desulfurization absorption tower.

This invention belongs to the field of civil engineering technology in the field of flywheel energy storage in thermal power plants. It discloses a foundation treatment method for setting up flywheel energy storage devices in collapsible loess areas. The method involves excavating 2-3 meters downwards from the surface of the collapsible loess layer, then installing bored piles for the flywheel well on the surface after the first excavation. A second excavation is then carried out on the surface corresponding to the flywheel well, reaching the lower elevation of the flywheel well's bottom slab. The loose pile portion is then removed, and the flywheel well is installed above the bored piles. Backfill soil is used to the surface height after the first excavation, followed by a layer of lime-soil. A second backfill is then used to the ground floor level, and finally, a hardened ground surface is constructed. This invention features a short construction period, low engineering cost, and a foundation treatment scheme combining bored piles and lime-soil, making it particularly suitable for the characteristics of flywheel energy storage project structures.

The present invention relates to the technical field of sewage treatment, and in particular to a low-energy integrated sewage treatment device. The low-energy integrated sewage treatment device provided by the present invention includes a shell and a lifting pump; the top of the shell is provided with a water distribution component, the bottom is provided with multiple mud discharge parts, and the shell is provided with a partition for dividing the shell into an upper area and a lower area; the upper area is provided with a second filter part, a third filter part and an inclined tube sedimentation part from top to bottom, and the lower area is provided with a first filter part, the first filter part is provided with a first water inlet and a first water outlet, and the inclined tube sedimentation part is provided with a second water outlet and a sedimentation area mud discharge port; the lifting pump includes an inlet end and an outlet end, the inlet end is connected to the first water outlet, and the outlet end is connected to the water distribution component. The present invention has only one lifting pump, which greatly reduces the operating energy consumption and maintenance management costs, and the integrated design greatly reduces the construction cost.

The utility model provides a kind of anti-vibration nut, increase O-ring in nut inside, increase the friction between nut and bolt, prevent nut from loosening because of vibration.The anti-vibration nut is used for the related operation (pipeline flange connection, fixed support, bolt fastening) needing to use bolt connection, fixed, using the nut and bolt connection, can prevent nut loosening due to vibration at connecting place, avoid the security risk due to the fastening of fastener The fastening of fastener reduces, and simultaneously can reduce the use of spring pad, reduce construction cost, improve construction efficiency.

The working platform in the metal container comprises a storage tank and a lower base, a tank opening is formed in the storage tank, the lower base is installed in the center of the interior of the storage tank, a lifting platform is installed on the lower base, and the lifting platform comprises a lower swing mechanism; the invention further discloses a construction method of the working platform in the metal container. The construction method comprises the following steps that S1, the platform is assembled; s2, platform inspection and acceptance; s3, weld joint rust removal operation and acceptance inspection are carried out; s4, paint brushing construction is conducted; s5, quality inspection is conducted on paint on the inner wall plate of the can; s6, the top plate in the tank is subjected to rust removal and paint brushing; s7, quality inspection is conducted on the tank top plate paint; and S8, the platform is dismantled. The method has the advantages that the operation time can be accurately calculated, the requirement for the construction progress can be met, meanwhile, the safety risk of the operation platform is low, the operation safety is further improved, the construction precision is improved, the quality problem is reduced, and the construction cost is effectively reduced.

The invention discloses a prestressed frozen soil composite support structure and a construction method, which are suitable for use in underground engineering construction. A frozen wall is set in a soft water-bearing stratum around an excavation range, and the frozen wall is wrapped around the top plate and two sides of the excavation range, wherein the inner side of the frozen wall is the inner boundary of the frozen soil, and the outer side is the outer boundary of the frozen soil, and freezing pipes are respectively arranged at the outer boundary of the frozen soil and the inner boundary of the frozen soil, and the freezing pipes control the development range of the frozen wall and limit the frost heave effect of the frozen wall during the freezing process, so that the formed frozen wall is compacted to improve the strength, and the frost heave effect of the frozen wall also causes the freezing pipes at the outer boundary of the frozen soil and the inner boundary of the frozen soil to produce prestressed deformation, so that the freezing pipes and the compacted frozen wall together constitute a prestressed frozen soil composite support structure, and the prestressed frozen soil composite support structure provides support for the excavation construction process of the soil body in the internal space of the frozen wall, maintains the stability of the external soil body, and suppresses the impact of the freezing construction on the environment.

The utility model relates to the technical field of sulphur recovery equipment, specifically a floating ball type sulphur sealing device, including inner cylinder, the inner cylinder top part sets up cylinder top flange cover, the inner cylinder bottom part sets up cylinder bottom flange cover, the inner cylinder connects liquid sulphur inlet inner connector and liquid sulphur outlet inner connector respectively, the liquid sulphur outlet inner connector extends into the inside of inner cylinder, the liquid sulphur outlet inner connector extends into the inside of inner cylinder one end upper portion opening, and opening place fixedly connected with the communicating port, the communicating port is in communication with liquid sulphur outlet inner connector, the communicating port is slidably connected with the plunger, and the plunger can block the communicating port, and the top of plunger is fixedly connected with the floating ball. The utility model discloses a floating ball type sulphur sealing device simple structure, through the floating ball drive plunger isolation process gas into liquid sulphur storage facility, and ensure that the liquid sulphur generated flows into the storage facility, eliminates the hidden danger of safety while saving the investment, and is more favorable to the maintenance of equipment.

The utility model discloses a downward flow sewage packing system blockage identification emergency water passing device which comprises a sewage packing system, a water inlet pipe is arranged on the upper portion of the sewage packing system, a packing layer is arranged on the inner side of the sewage packing system, a bearing layer is further arranged at the bottom of the inner side of the sewage packing system, and the bearing layer is arranged on the lower portion of the packing layer. A water outlet pipe is arranged at the bottom of the sewage filler system; the device further comprises a cylindrical blockage recognition emergency water passing structure, the blockage recognition emergency water passing structure is arranged in the filler layer, and an emergency water inlet hole, a shallow layer emergency water passing hole and a middle layer emergency water passing hole are formed in the blockage recognition emergency water passing structure. No matter slight or severe blockage occurs, sewage can bypass the seriously-blocked surface filler through the blockage recognition emergency water passing structure, the filtering effect is continuously achieved through the shallow filler and the middle filler, the situation that the whole system is stopped due to blockage of the surface filler is avoided, the structure is simple, and the construction and operation and maintenance cost is reduced.

The invention provides an incineration flue gas SCR denitration system and a control method. The incineration flue gas SCR denitration system comprises a main flue, a bypass flue and a GGH; wherein one side of the GGH is a high-temperature side and comprises a high-temperature inlet and a high-temperature outlet respectively; the other side of the GGH is a low-temperature side and comprises a low-temperature inlet and a low-temperature outlet respectively; an input port of the bypass flue is connected with a raw flue gas inlet of the SCR device, and an outlet of the bypass flue is connected with a purified flue gas outlet of the SCR device; a main flue valve is arranged at the main flue; the bypass flue is provided with a bypass flue valve; the main path flue valve and the bypass flue valve are regulating valves, and the opening range is 0-100%. The amount of flue gas passing through the main flue is adjusted through the bypass flue valve and the main flue valve, catalyst scaling ammonium bisulfate pyrolysis in a low-energy-consumption state is achieved, and meanwhile it is guaranteed that the flue gas temperature of an SCR outlet does not exceed the temperature. And normal operation of the flue gas SCR denitration device in a low-energy-consumption state can be realized.

The utility model relates to a heat storage electric heating device, and belongs to the technical field of heating. According to the technical scheme, the device comprises a shell, an electric heating pipe, an electric heating wire and a controller mounting box, and is characterized in that heat accumulators are arranged in the shell, the electric heating pipe is arranged between the heat accumulators, and part of heating external heat is stored in the heat accumulators; a heat storage material, superconducting liquid and an electric heating pipe are placed in the lower communicating pipe, and part of heating external heat is stored in the heat storage material; a heat storage material and an electric heating wire are arranged in the heat storage floor heating pipe, and part of heat outside heating is stored in the heat storage material. The time control switch controls on and off of the power supply, and when the power supply is turned off, stored heat is used for continuous heating. The utility model has the following beneficial effects: the heat storage function is realized, heat storage is carried out while heating is carried out for 1 hour after power is on, heat supply can be continuously carried out for 1 hour after power is off, and 50% of energy can be saved; the device is simple in structure, obvious in energy-saving effect and wide in market prospect.