369 results about "Tubing types" patented technology

The utility model discloses a shell-and-tube efficient heat exchanger which comprises a heat exchanger body and a first liquid inlet tube, the bottom of the first liquid inlet tube is fixedly installed on the top of a tube box, the first liquid inlet tube comprises a communicating tube, a connecting tube, a pressing block, a filter plate, a connecting block and a clamping mechanism, and the bottom of the communicating tube is fixedly installed on the top of the tube box. The inner wall of the bottom of the connecting pipe and the top of the communicating pipe are slidably mounted, the top of the pressing block and the inner surface of the connecting pipe are fixedly mounted, the top of the pressing block and the interior of the communicating pipe are slidably mounted, the outer surface of the filter plate and the interior of the communicating pipe are clamped, the side face of the top of the connecting block and the outer surface of the connecting pipe are fixedly mounted, and the clamping mechanism is arranged on the surface of the communicating pipe. A clamping mechanism is arranged, a pull rod is transversely pulled, a U-shaped rod and a clamping column are driven to horizontally move and are separated from the interior of a connecting block, then a connecting pipe is moved upwards, the connecting pipe is separated from a communicating pipe, impurities on the surface of a filter plate are cleaned, and the situation that the filter plate is blocked after the impurities are accumulated, and the injection rate of fluid is affected is avoided.

The utility model discloses a novel single-stream coiled tube type heat exchange device in the technical field of heat exchange devices, which comprises a box body, a box cover is hinged to the top of the rear part of the box body, a fixing mechanism is fixedly connected to the front part of the box body, a connecting mechanism is fixedly connected to the front part of the box cover, and a heat exchange pipeline is arranged between the box body and the box cover. The outer surface of the heat exchange pipeline is sleeved with a winding pipe, box body heat exchange grooves matched with the heat exchange pipeline are formed in the tops of the front side and the rear side of the box body correspondingly, and box body winding pipe grooves matched with the winding pipe are formed in the tops of the front side and the rear side of the box body correspondingly. The bottom of the front side and the bottom of the rear side of the box cover are each provided with a box cover heat exchange groove matched with a heat exchange pipeline, the bottom of the front side and the bottom of the rear side of the box cover are each provided with a box cover pipe winding groove matched with a winding pipe, and the fixing mechanism comprises a fixing block. And the applicability is poor.

The utility model discloses a left tube plate and right tube plate communicated winding tube bundle structure, which relates to the technical field of winding tube type heat exchangers, and comprises a left tube plate, a central tube, a winding tube component and a right tube plate, the centers of the left tube plate and the right tube plate are provided with communication holes, the left end of the central tube is welded with the left tube plate and communicated with the left communication hole, and the right end of the central tube is welded with the right tube plate. The right end of the central tube is connected with the right tube plate in a welded mode and communicated with the right communication hole so as to communicate the left tube plate with the right tube plate, the central tube is of a combined connection structure of a key and an expansion joint, and the winding tube assembly is connected to the central tube in a sleeved mode and arranged between the left tube plate and the right tube plate. The communicating holes are formed in the left pipe plate and the right pipe plate, and the left pipe plate and the right pipe plate are connected through the central pipe to form a medium channel, so that the purpose of conveying media required by specific purposes is achieved.

The invention relates to gas / oil well mouth sealing equipment, in particular to an inner inserting pipe type well cementation well mouth sealing device structure which comprises a drill rod radish head, a first annular protrusion I, a second annular protrusion II, a sealing ring, a sealing ring, a sealing ring and an inner inserting pipe sealing ring, the outer cylindrical face of the drill rod radish head is provided with a first annular protrusion I, and the lower end face of the first annular protrusion I is a conical slope b; a second annular bulge II is arranged on the inner wall of the upper section part of the sleeve joint, and the upper end surface of the second annular bulge II is a conical inclined surface c; a central hole is formed in the pressing cap; the drill rod radish head seat is placed in the sleeve joint, the conical inclined surface b is adaptively propped against the conical inclined surface c, and a sealing ring is arranged between the conical inclined surface b and the conical inclined surface c; a pressing cap is arranged on the radish head of the drill rod from top to bottom in a sleeving mode, abuts against the conical slope a and is connected with the sleeve joint in a threaded fit mode; cement paste is injected into a well through the drill rod, and the cement paste directly enters a gap between the stratum well wall and the casing pipe from the lower end of the drill rod, so that well cementation is achieved. The sealing device has the beneficial effects that the sealing effect is excellent, and the situation of sealing failure is not prone to occurring; the structure is simple and cost is low.

The application discloses finned tube type phase change heat storage equipment, including heat storage shell, both ends of heat storage shell are provided with sealing end plate, two sealing end plates are arranged, the inside of heat storage shell between two sealing end plates is provided with partition layer, the middle of heat storage shell is provided with coaxial center flow pipe, the opposite ends of center flow pipe are sealed and penetrated through sealing end plate through sealing sleeve, the space between partition layer and center flow pipe is set as phase change heat storage cavity, the inside of partition layer and the outside of center flow pipe are provided with heat transfer fin, the application belongs to phase change heat storage technical field, the purpose of the application is to solve the problems of low heat storage efficiency and poor equipment stability in prior art, the technical effects are as follows: double flow makes phase change heat storage efficiency improved, double cavity phase change heat storage material is arranged in heat storage equipment, heat storage energy efficiency is high, fin strengthens phase change heat storage and structural support, equipment is stable, and has good sealing and plugging performance.

To provide an oscillation reduction water tank device and a control method that can withstand a parametric rolling, related to a rolling reduction for a giant container ship.SOLUTION: An A.R.T. body has a mountain shape in a cross section shape that a new concept center tank and left and right liquid passages are connected to a STABILO-made, DW-type A.R.T. based on a U-shaped tube type. Based on the average rolling period of the ship, left and right virtual tank functions are created bordering on the longitudinal bulkhead 5 below an equipment room. An oscillation reduction water tank device comprises a program to control automatically the virtual tank and the function of the A.R.T. body, and a program to predict whether or not the parametric rolling phenomenon occurs. It is possible to provide an A.R.T. equipment that can keep the liquid weight used within about 1,000 tons and can obtain an effective attenuation factor even for a giant container ship with a displacement volume of 200,000 tons class.SELECTED DRAWING: Figure 1

The invention relates to the technical field of heat exchange equipment, in particular to an intelligent self-adaptive multi-working-condition efficient heat exchange finned tube type direct water-cooling evaporative heat exchanger which comprises a shell, a finned tube is installed in the shell, a flow meter is installed at the liquid inlet end of the finned tube, and the flow meter is electrically connected with a controller. The liquid inlet end of the shell communicates with a water delivery pump, a spraying assembly and a cleaning assembly through a four-way pipe, the liquid outlet end of the shell communicates with a drainage pump, the liquid outlet end of the drainage pump communicates with the liquid inlet end of the water delivery pump, and the controller is used for controlling the drainage pump, the water delivery pump, the spraying assembly and the cleaning assembly to work. The controller is used for controlling the drainage pump, the water delivery pump, the spraying assembly and the cleaning assembly, the drainage pump, the water delivery pump, the spraying assembly and the cleaning assembly can work separately in an intelligent and self-adaptive mode under different working conditions, the heat exchange efficiency can be effectively and dynamically adjusted in real time when loads are changed or the environment temperature fluctuates, and the heat exchange efficiency is improved. The energy consumption is reduced.

The invention discloses a vacuum tower top condensation reflux system which comprises a vacuum tower, the winding tube type heat exchanger is vertically arranged and is provided with a tube pass and a shell pass, a tube pass inlet of the winding tube type heat exchanger is used for inputting a cold medium, a tube pass outlet of the winding tube type heat exchanger is used for outputting the cold medium after heat exchange, and a shell pass inlet of the winding tube type heat exchanger is used for inputting vacuum tower top gas; the lower portion of the shell side is provided with a cavity used for receiving condensate obtained after condensation of vacuum tower top gas and is provided with a shell side liquid phase outlet used for outputting the condensate in the cavity, the upper portion of the shell side is provided with a shell side gas phase outlet used for outputting non-condensable gas, and the shell side gas phase outlet is used for being communicated with a vacuum pump. According to the invention, after the vacuum tower top gas enters the shell pass for heat exchange and condensation, the condensate flows into the chamber under the action of self gravity and then is output from the shell pass liquid phase outlet, the non-condensable gas flows upwards and is discharged from the shell pass gas phase outlet, and the chamber plays a role of a storage tank without additionally arranging a storage tank; and equipment such as a condenser above the storage tank does not need to be additionally arranged. The device can be simplified, and the resistance drop is small.

The utility model relates to the technical field of heat exchangers, in particular to a four-tube-pass U-shaped tube type heat exchanger which comprises a tube box, a barrel, a tube plate and a plurality of U-shaped heat exchange tubes, the tube plate is located at the joint of the tube box and the barrel, a cross partition plate groove is formed in the tube plate, a group of cross partition plates are arranged in a cavity of the tube box, and the U-shaped heat exchange tubes are arranged in the tube box. The shape of the end face of the cross-shaped partition plate is matched with the shape of the cross-shaped partition plate groove, a cavity in the tube box is divided into an upper material inlet cavity, a lower material outlet cavity, a left transition cavity and a right transition cavity by the cross-shaped partition plate, the U-shaped heat exchange tubes are divided into four sets, and each set of U-shaped heat exchange tubes are arranged on the cross-shaped partition plate groove of the tube plate in a straddling mode. Wherein the two ends of the upper two groups of U-shaped heat exchange tubes are respectively communicated with the material inlet cavity and the transition cavity on the same side, and the two ends of the lower two groups of U-shaped heat exchange tubes are respectively communicated with the material outlet cavity and the transition cavity on the same side; according to the four-tube-pass U-shaped tube type heat exchanger with the structure, the heat exchange efficiency can be improved when tube pass materials are steam or gas condensation working conditions.

The utility model is applicable to the technical field of heat exchanger cleaning, and provides a dredging device for a tube type heat exchanger, which comprises a shell, a dredging device and a dredging device, wherein a rotating shaft is rotationally mounted on the inner wall of the shell; the flexible threaded steel bar is rotationally mounted on the shell and is fixedly connected with the rotating shaft; the mounting column is fixedly mounted at one end of the flexible threaded steel bar; the slot is formed in the mounting column; the drill bit is arranged on the mounting column; the inserting block is fixedly arranged on the drill bit and is matched with the inserting groove; and the driving mechanism is arranged on the inner wall of the shell and used for driving the rotating shaft and the flexible threaded steel bars to rotate. According to the dredging device for the tubular heat exchanger, provided by the scheme, the scraped furfural cokes can be discharged in real time while the furfural cokes on the inner walls of the high-temperature side tubes are dredged, the dredging effect is good, the dredging efficiency is high, and the drill bit is convenient to replace.

The invention relates to the technical field of reaction kettles, in particular to an outer coil half-pipe type heating stainless steel reaction kettle which comprises a shell unit and a release unit, the shell unit comprises a kettle body, a top cover, a stirring mechanism and an outer coil pipe, the outer coil pipe is spirally wound on the outer surface of the kettle body, and the release unit comprises an air inlet pipe fixedly connected to the bottom end of the outer coil pipe. The top end of the outer coil pipe is fixedly connected with an exhaust pipe. Compared with the prior art, the release unit is arranged, steam enters the air inlet pipe and then drives the air flow blades to rotate, the vertical rod is driven to eccentrically rotate, a shifting block at the top of the release unit shifts a short rod, a center rod and fan plates annularly distributed on the outer surface of the center rod intermittently rotate, gaps are formed between the fan plates and the exhaust pipe when the fan plates rotate to discharge the steam, and the steam is prevented from flowing out when the fan plates are static; therefore, the residence time of the steam in the outer coil pipe is prolonged, indirect discharge of the steam is realized, the residence time of the steam in the outer coil pipe is prolonged, and the heat exchange efficiency of the steam and the kettle body is improved.

The invention discloses an efficient energy-saving corrugated tube type heat exchanger and a heat exchange method, and relates to the technical field of heat exchange equipment. The efficient and energy-saving corrugated tube type heat exchanger comprises a shell, a heat exchange tube, an inner turbulent flow assembly and an outer turbulent flow assembly. The heat exchange tube comprises a plurality of corrugated tubes and a plurality of connecting tubes; the inner turbulent flow assembly comprises a first impeller and a second impeller which are coaxially arranged and have opposite rotating directions; the first impeller and the second impeller rotate in different directions under the impact of the first heat exchange fluid and disturb the laminar flow of the first heat exchange fluid; the outer turbulent flow assembly comprises a partition plate, and a flowing gap and a receding gap are formed between the partition plate and the inner wall of the shell. The height of the flowing gap is larger than that of the receding gap. The outer edge of any blade of the first impeller is provided with a balancing weight used for disturbing the second heat exchange fluid on the left side and the right side of the receding gap. The inner turbulent flow assembly can enhance the turbulent flow disorder degree of the first heat exchange fluid, the outer turbulent flow assembly can enhance the turbulent flow disorder degree of the second heat exchange fluid, and therefore the heat exchange efficiency is improved.

The utility model relates to the technical field of heat exchangers, and discloses a U-shaped heat exchange tube type multi-tube-pass anti-corrosion heat exchanger which comprises a shell, one end of the shell is fixedly connected with a first fixing ring, a tube box is installed on one side of the shell, one end of the tube box is fixedly connected with a second fixing ring, a tube plate is installed on one side of the first fixing ring, and the tube plate is installed on one side of the second fixing ring. And a plurality of bolts are mounted in the first fixing ring. According to the utility model, the nuts are separated from the bolts by rotating the nuts, the tube box is detached from the shell, the whole U-shaped tube bundle is detached by pulling the tube plate, the fixing rings are separated from the mounting holes by pulling the single tube pass, and the U-shaped tube bundle is in interference fit with the rubber rings through the U-shaped tube bundle and the fixing rings. The single tube pass can be quickly disassembled and assembled, replacement and maintenance are facilitated, the maintenance cost is effectively reduced, the cleaning effect is better, dirt and corrosives are effectively prevented from being accumulated, and the service life of the tube pass can be prolonged.

The utility model discloses a multi-pipe type static mixer, and particularly relates to the field of static mixers, the multi-pipe type static mixer comprises a group of static mixer shells, the bottom of the group of static mixer shells is fixedly connected with a discharge pipeline, the top of the static mixer shells is fixedly connected with a cover body through a flange, and the top of the cover body is fixedly connected with an input pipe; and the interior of the static mixer shell is connected with a mixing assembly through a fixing mechanism. The connecting block of one mixing blade is inserted into the butt joint groove of the other mixing blade, and the positioning rod is inserted into the positioning groove, so that the two mixing blades are spliced, and the splicing effect of the two mixing blades can be achieved after the positioning rod is inserted into the positioning groove; after the butt joint block and the connecting block are connected in an inserted mode, the joint of the butt joint block and the connecting block is wrapped in the butt joint block, and therefore when mixed materials impact the surfaces of the mixing blades, the joint between the mixing blades is not prone to damage. Through the cooperation of the structures, the effect of protecting the joint of the mixing blades is achieved.

The utility model relates to the technical field of heat exchangers, and particularly discloses a tube bundle supporting structure of a tube type heat exchanger, which comprises two supporting plates, and U-shaped frames are fixedly mounted on the outer walls of the tops of the two supporting plates; the multiple buffering and damping mechanisms are distributed at equal intervals and fixedly installed on the inner wall of the bottom of the U-shaped frame, supporting blocks are fixed to the outer walls of the tops of the buffering and damping mechanisms, and the surfaces of the supporting blocks are in an arc shape; after the tube bundle is impacted, kinetic energy brought by impact is converted into elastic potential energy for compression of the buffer spring, then damping force formed by the damping liquid counteracts the elastic potential energy, the elastic potential energy is converted into heat energy to be dissipated, the amplitude of the buffer spring is rapidly attenuated, and the buffer rod rapidly tends to be stable in the buffer cylinder. Therefore, the stability of the tube bundle is ensured, the tube bundle is prevented from being damaged, and the normal use of the tube bundle is ensured.

An inversion-formed double-walled tube includes an outer tube having an outer wall thickness, an inner tube disposed inside the outer tube and having an inner wall thickness, and a transition portion connecting the inner tube and the outer tube. In this arrangement, at least one of the inner and outer wall thicknesses varies along a length of the double-walled tube. The inversion-formed double-walled tube may be configured as an inversion tube type energy absorber and as an energy absorbing inversion tube assembly.

The invention discloses a tubular oxidation diffusion furnace, and relates to the technical field of oxidation diffusion furnaces, the tubular oxidation diffusion furnace comprises a thermal insulation layer, a heating assembly is arranged in the thermal insulation layer, an outer furnace tube is fixedly mounted in the thermal insulation layer, and an inner furnace tube is slidably mounted in the outer furnace tube; the inner end of the inner furnace tube is provided with a circular groove, and the outer end of the inner furnace tube is provided with an end cover. An air inlet and an air outlet are formed in the inner furnace tube, and an air inlet groove and an air outlet groove are formed in the outer furnace tube; the heat preservation layer is provided with an air inlet channel and an air outlet channel. A sealing plate is installed on the heat preservation layer in a sliding mode, and a through groove is formed in the sealing plate. The inner furnace tube can translate relative to the outer furnace tube, and when an operator opens the end cover to take out the quartz boat, the temperature of air overflowing from the inner furnace tube is low, so that hidden dangers cannot be caused to the personal safety of the operator. In the process that the inner furnace tube is pushed by external force to move inwards to be reset, hot air in the outer furnace tube returns to the inner furnace tube through the circular groove, heat needed for preheating before next oxidation operation is small, and energy consumption of equipment is reduced.

The invention discloses an integrated shell and tube type marine heat exchange device, and belongs to the technical field of marine heat exchange.The integrated shell and tube type marine heat exchange device is provided with jacking springs, a top plate, movable clamping blocks, reset springs, baffle plates and heat transfer tubes, after the multiple heat transfer tubes are all pulled away, the top plate is pushed to be tightly attached to a mounting base, and the top plate extrudes the jacking springs to deform in mounting through grooves; meanwhile, a fixed clamping hook is pushed to be clamped in a movable clamping groove to slide, a movable clamping block is driven to move to a clamping opening of the movable clamping groove, after a top plate is tightly attached to a mounting base, the fixed clamping hook is loosened, the movable clamping block is jacked up under the springback effect of a reset spring, and the movable clamping block and the movable clamping groove are connected in a clamped mode; and then the heat transfer pipe is inserted into the through holes of the mounting seat, the mounting end cover and the baffle plate, so that the jacking end ring is tightly attached to the top plate, the elastic clamping ring is inserted into the through hole of the mounting seat to extrude the elastic clamping ring to deform, and therefore, the heat transfer pipe is clamped and fixed in the through hole of the mounting seat, and the heat transfer pipe can be conveniently jacked out, pulled out or inserted and mounted.

The utility model relates to the technical field of disc tube type reverse osmosis membranes, in particular to a disc tube type reverse osmosis membrane component which comprises a central rod and a membrane shell, two end covers are fixedly connected to the surface of the central rod, a plurality of membranes are fixedly connected to the surface of the central rod, a plurality of flow guide plates are fixedly connected to the inner wall of the membrane shell, and the flow guide plates are fixedly connected to the inner wall of the membrane shell. The surface of the membrane shell is provided with an end cover, the surface of the end cover is communicated with a concentrated solution pipe, the surface of the end cover is communicated with a feeding pipe, the surface of the end cover is communicated with a water purification pipe, the surface of the membrane shell is provided with an auxiliary device, the auxiliary device comprises two sliding rails, and the two sliding rails are fixedly connected with the arc surface of a meter. By arranging the auxiliary device, when the two membrane shell assemblies are in butt joint, the butt joint direction of the two membrane shell assemblies can be limited and assisted, so that the two membrane shells cannot deviate when being mounted, the butt joint mounting efficiency of the two membrane shells is improved, and the reverse osmosis work can be quickly carried out conveniently.

The utility model discloses an air cooling module machine with a shell and tube evaporator, which relates to the field of evaporators, solves the problem that the existing traditional copper pipe has a poor cooling effect on fluid flowing in the copper pipe, and adopts the following scheme that the air cooling module machine comprises a frame, and an evaporator, a condenser and a compressor which are arranged on the inner side of the frame and are communicated with one another through an air cooling pipe group; a main body of the air cooling pipe set is a main copper pipe, and the air cooling pipe set is further provided with a branch pipe part and a sleeve part which are communicated with the main copper pipe. The branch pipe part is a copper pipe, and the radius of the branch pipe part is twice that of the main copper pipe; the sleeve part consists of an outer sleeve and an inner sleeve which are assembled inside and outside; according to the air-cooling module machine with the shell and tube evaporator, the service life of the air-cooling module machine can be prolonged by arranging the air-cooling tube set and setting the thickness of the branch tube part and the sleeve part, and the circulation area can be increased under the condition that the flow speed is not changed by arranging the radius of the air-cooling tube set, so that the temperature of fluid flowing in the air-cooling module machine is reduced by ten degrees compared with that of a traditional copper tube.

The utility model discloses a finned tube type heat exchanger for a hot galvanizing line, which comprises a shell, a smoke inlet and a smoke outlet are respectively arranged at two ends of the shell, and a plurality of air ducts arranged side by side are arranged between the smoke inlet and the smoke outlet. A plurality of fin heat exchange tube sets are arranged in the air flue at intervals in the smoke flowing direction, each fin heat exchange tube set is provided with a cold side inlet and a cold side outlet, all heat exchange tubes of the fin heat exchange tube sets are fixed to an upper tube plate and a lower tube plate, the heat exchange tubes are connected through U-shaped elbows, and the fin heat exchange tube sets share the upper tube plate and the lower tube plate. A plurality of fin heat exchange tube groups are inserted into the air duct from top to bottom; the upper tube plate is connected with an equipment flange on the shell through a gasket and a fastener; an expansion joint and an electric air valve are sequentially arranged at the air duct inlet in the smoke flowing direction, and the opening degree of the electric air valve is determined according to the smoke outlet temperature. The heat exchanger is convenient for ash removal, overhaul and maintenance, and solves the problem that the performance of the heat exchanger is reduced due to smoke side dust blockage.

1. Name of the Design Product: Reducing Coil Tube (End Tube Type - 2). 2. Use of the Design Product: Coil tube for steam sprayer. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photograph Most Indicating the Design Key Points: 3D view of Design 1. 5. Design 1 is designated as the basic design.

The invention provides an assembly type aluminum pipe type anti-explosion valve which comprises a door frame, a plugging type door leaf, a vertical rotating type door leaf and a valve unit body, the door frame is pre-buried in a door frame wall, and the plugging type door leaf and the vertical rotating type door leaf are both installed on the door frame; the blocking type door leaf is fixedly connected with the door frame, and the vertical rotating type door leaf is hinged to the door frame. The blocking type door leaf is provided with a first ventilation opening, the vertical rotating type door leaf is provided with a second ventilation opening, and valve unit bodies are installed in the first ventilation opening and the second ventilation opening. The valve is compact in structure and reliable in strength, the ventilation resistance of the valve ventilation duct is improved, the stroke of the valve element moving from the opening position to the closing position is short, and the wave absorbing efficiency is improved. The valve adopts a plugging type door leaf and a vertical rotating type door leaf, and the plugging type door leaf reduces civil construction and equipment installation difficulty; and the vertical rotating door leaf is convenient for constructors to enter the ventilation opening to carry out overhaul and maintenance work.

The invention discloses a square tube type protective barrier and a using method thereof, and relates to the field of protective barriers, the square tube type protective barrier comprises a stand column, a cross rod, a positioning mechanism, a fixing mechanism and a splicing mechanism, the positioning mechanism is used for supporting and positioning the cross rod, the fixing mechanism is used for limiting and fixing the top of one end of the cross rod, and the splicing mechanism is arranged between the stand column and the cross rod; the connecting device is used for installing and connecting the stand column and the cross rod. By rotating a rotating rod, a nut seat drives a supporting block to move upwards together, the height of a cross rod is adjusted, a connecting rod is pulled to rotate, the connecting rod pulls a sliding block and a limiting block to move towards the back face and extrudes the front face of the cross rod, and then a movable block is rotated upwards around a mounting shaft; the inner walls of the movable blocks are attached to the upper surfaces of the transverse rods, the transverse rods are positioned and fixed, the stability of the transverse rods is improved, the transverse rods and the stand columns are conveniently installed and connected, and the installation efficiency of the protective handrail is improved.

The invention discloses a composite working medium condensation and separation device for a semi-closed S-CO2 power cycle system, relates to the technical field of composite working medium condensation and separation, and solves the problem of separation of gaseous water in a CO2 working medium. The device comprises a composite working medium inlet drain pipe box, a circulating water shell and a working medium outlet pipe box which are vertically arranged and sequentially connected, wherein a spiral heat exchange pipe bundle is arranged in the circulating water shell; the composite working medium inlet drain pipe box, the spiral heat exchange pipe bundle and the working medium outlet pipe box are sequentially communicated; the composite working medium inlet drain pipe box is provided with a composite working medium inlet connecting pipe and a drain outlet connecting pipe; a water supply inlet connecting pipe and a water supply outlet connecting pipe are arranged on the circulating water shell; a working medium outlet connecting pipe and a starting exhaust port connecting pipe are arranged on the working medium outlet pipe box, and a wire mesh demister is arranged in the working medium outlet pipe box. According to the invention, through the coiled tube type heat exchanger, circulating water is adopted as a cold source to cool and condense the composite working medium, and based on the condensation temperature difference of CO2 and H2O, efficient separation of two components of CO2 and H2O is completed.

The utility model discloses a steam generator, relates to the technical field of steam generators, and aims to solve the problems that fluid impacts a tube bundle, a heat exchange tube is easy to damage, the water content of steam is large, the effect of a demister is reduced along with time and the like in the design of the steam generator commonly used in the industry at present in the prior art. A tube pass inlet N1 and a tube pass outlet N2 are formed in the upper end and the lower end of the tube box 1 respectively, the tube pass inlet N1 is an inlet of hot fluid, the tube pass outlet N2 is an outlet of the hot fluid subjected to heat exchange, a liquid inlet N3 is formed in the side wall of the shell 3 and used for supplementing water to the steam generator, and a steam outlet N4 is formed in the top of the shell 3 and used for supplementing water to the steam generator. A wire mesh demister 10 is arranged on a steam outlet N4 of the shell 3 and used for further removing liquid water in steam, and the heat exchange tube bundle 4 is of a U-shaped tube type.

The invention provides a production process of a square tube type precast concrete member. The production process comprises a forming room, a curing system, a concrete transportation system, a concrete distribution system, a vibration extrusion die, a crown block and a transportation channel. By means of the production line, the component production efficiency can be greatly improved, vibration, extrusion and forming integration of the square tube type component is achieved, the cement consumption and carbon emission of concrete are reduced, the curing time of the concrete is shortened, automatic production of the square tube type prefabricated concrete component is achieved, and labor and cost are reduced.

1. Name of the design product: Reducing Coil Tube (Bottom Tube Type - 2). 2. Use of the design product: Coil tube for steam sprayer. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view of Design 1. 5. Design 1 is designated as the basic design.

The utility model relates to a steel pipe pile cofferdam pipe type lock catch and relates to the technical field of connecting structures, the steel pipe pile cofferdam pipe type lock catch comprises a supporting device and an abutting device, the supporting device comprises a vertical rod and a transverse rod, the transverse rod slides along the vertical rod, the transverse rod is provided with a fixing block, the fixing block is provided with two fixing pipes, the fixing pipes are rotationally connected with the fixing block, and the abutting device abuts against the vertical rod. A movable rod is arranged in an inner cavity of the fixed pipe and slides along the fixed pipe; two abutting devices are arranged at the end of the moving rod, each abutting device comprises a telescopic rod and a supporting plate, the telescopic rods are rotationally connected with the moving rod, the supporting plates are rotationally connected with the telescopic rods, a plurality of abutting assemblies are arranged on the supporting plates in the length direction, each abutting assembly comprises an elastic rod and an abutting plate, and the elastic rods are connected with the abutting plates. One end of the elastic rod is fixedly connected with the supporting plate, and the other end of the elastic rod is rotationally connected with the abutting plate. The steel pipe limiting device has the effects that steel pipes with different diameters can be limited, and the working convenience of constructors is improved.