42results about How to "Shorten inspection and maintenance time" patented technology

The invention relates to an open type intelligent monitoring comprehensive experiment platform in the sugarcane sugar boiling process. The open type intelligent monitoring comprehensive experiment platform consists of a hardware part and a software part, wherein the hardware part comprises a sugar boiling tank body module, an auxiliary work module, a sensor data collecting module and a valve control module, the software part comprises a real-time data collecting assembly, a supersaturation degree soft measuring assembly and a sugar boiling process dynamic parameter optimizing and control regulation assembly, and the hardware part and the software part are connected with each other through a Mod bus and a controller area network (CAN) bus. The platform is used for scientific research, various kinds of monitoring method optimizing research are developed under various actual work conditions in the sugar boiling process, and the practical monitoring technology is provided in the actual sugar boiling process. The experiment platform can also be used as a comprehensive experiment teaching platform for students specialized in measuring control and sugar making, and relative comprehensive and design research teaching method research is developed.

The invention discloses a sector-shaped section overhauling arc butting device of an H-type blank continuous casting machine. The sector-shaped section overhauling arc butting device comprises a sector-shaped section supporting frame, a standard verifying device and an auxiliary arc butting device, wherein the standard verifying device comprises a standard platform, an H-shaped standard block and a first positioning standard device; the auxiliary arc butting device comprises a supporting plate, a basic plane adjusting plate and a second positioning standard device; the front end of the sector-shaped section supporting frame is provided with a front end positioning device which is the same as the first positioning standard device in structure; and the rear end of the sector-shaped section supporting frame is provided with a rear end positioning device which is the same as the second positioning standard device in structure. All standard positions of an arc butting sample plate can be determined by one time of verification; in a detection process, the arc butting sample plate is placed at a corresponding front end foot roller device supporting roller and the basic plane adjusting plate of the auxiliary arc butting device, namely the distance of each supporting roller on the adjustable sector-shaped section to the arc butting sample plate can be adjusted and the overhauling work of the sector-shaped section of the continuous casting machine is simplified; and the overhauling and maintaining time of each group of the supporting roller of the sector-shaped section can be greatly shortened and the working efficiency is improved.

The invention discloses an electric car chassis with a lithium battery. The electric car chassis with the lithium battery comprises a drive motor, a transmission shaft, a rear drive axle, a power-assisted steering pump, a radiating water tank, a high-pressure control cabinet, an electric air compressor and a power battery pack. The drive motor is arranged below a car body bottom plate between front wheels and rear wheels and is connected with the rear drive axle through the transmission shaft. The power battery pack is formed by connecting a first middle battery pack, a second middle battery pack, a tail high-position battery pack and a tail low-position battery pack in series. Maintenance doors are arranged in the space of the first middle battery pack and the space of the middle second battery pack respectively, and the tail high-position battery pack is placed in a tail luggage bin above the car body bottom plate. According to the electric car chassis with the lithium battery, by the adoption of the above mode, the arrangement is compact, and pipelines are mounted and connected conveniently; the power battery pack is arranged on the two sides of the middle of a car and above and below the tail luggage bin; the maintenance doors are formed in a car body, so that parts in the car do not need to be dismounted during maintenance and repair; maintaining and repairing can be facilitated, and the workload of maintaining and repairing is reduced.

The invention belongs to the field of offshore drilling and particularly relates to an offshore drilling shore-based supporting mud plant system. The offshore drilling shore-based supporting mud plant system comprises a mobile pump skid integrated unit, a movable slurry preparing tank integrated unit, a movable storage tank integrated unit, a waste liquid treatment skid integrated unit and pipes, a control system and the like for connecting the integrated units. The whole system achieves drilling fluid preparation, transfer and recovery treatment functions and the like, the main constituent devices in the system are all designed to be modular, can be quickly transferred and quickly assembled to build a plant, the mobile pump skid integrated unit, the movable slurry preparing tank integrated unit, the movable storage tank integrated unit and the waste liquid treatment skid integrated unit are all designed to be in forms of stackable standard containers, and the capacity of the mud plant can be increased or decreased under the situation that occupied area is not increased. In addition, interfaces are further reserved for the system, and other functional modules can be added on the basis, such as other functional modules for achieving automatic cement delivery, harmless treatment of waste mud and the like.

The invention relates to an intelligent monitoring method for airplane heavy landing. The method includes the steps that firstly, according to the characteristics of an airplane, the relationship between the airplane flight parameter and the airplane structure bearing parameter is obtained through analysis, wherein the airplane flight parameter comprises the sinking speed, and the airplane structure bearing parameter comprises the airplane landing weight; secondly, the overload judgment parameters and a threshold value are determined, wherein the overload judgment parameters comprise the airplane landing design weight and the maximum landing weight; and thirdly, a landing diagnostic model is established and judges whether the airplane landing process is a landing overload process or not. By the adoption of the intelligent monitoring method for airplane heavy landing, whether the airplane landing process is a heavy landing process or not can be effectively judged, an effective early warning can be given, the manual data analysis time and the unnecessary overhaul and maintenance time are greatly shortened, the work efficiency is improved, and accuracy is high.

The invention discloses a sintering machine inspecting and maintaining method and belongs to the technical field of metallurgy. A sintering machine maintaining stay bar is utilized, the vacancy maintained by the sintering machine maintaining stay bar in the sintering machine trolley group corresponds to the part of the sintering machine to be inspected and maintained by means of rotation of an annular conveying belt of the sintering machine, so that enough inspection and maintenance space can achieved on the part. By means of the method, the vacancy is maintained when the sintering machine trolley group moves on a sintering machine track, and all parts of the sintering machine can be inspected and maintained simultaneously.

A horizontal novel centrifugal concentrator comprises a frame (8), an outer cover (1), a rotating drum (2), a variable frequency reducing motor (4) connected with the rotating shaft of the rotating drum through a coupler (3), a flushing system (5) arranged in the outer cover and connected with an external water supply system, an ore distributor system (6) below the outer cover, an ore receiving bucket (7) below the outer cover, a feeding system (9) arranged outside the outer cover and communicated with the rotating drum, wherein the rotating drum comprises the rotating shaft, a horn-shaped rotating disc and a circular truncated cone-shaped rotary drum; the rotating shaft is sleeved with the rotating disc; the rotating disc is sleeved with the rotary drum; the large end surface of the rotary drum is connected with the outer edge of the rotating disc; the tilt angle of the opening in the internal face of the rotary drum is 2-6 degrees; the flushing system comprises a water inlet pipe with a pneumatic ball valve and flushing nozzles in the rotary drum; the ore distributor system comprises a cylinder, an oscillating shaft, a connecting arm and an ore distribution hopper; one end of the connecting arm is connected with the push rod of the cylinder and the other end of the connecting arm is connected with the oscillating shaft; a lifting arm at the top of the ore distribution hopper is connected with the oscillating shaft; the feeding system comprises an ore distribution box and at least two feeding nozzles; a pneumatic knife gate valve is arranged at the ore inlet of the ore distribution box; the feeding nozzles are mounted at the tail ends of feeding pipes of the ore distribution box and face to the internal face of the rotary drum. The horizontal type novel centrifugal concentrator has a simple structure and a good concentration effect, and is easy to control and maintain.

The name of the invention is a water stemming of a discharge hole of a quartz crucible material-preparation furnace. The invention belongs to the technical field of material preparation of environment-friendly optical glass and lanthanide optical glass. The invention mainly solves the problem of cracking of a crucible bottom when a quartz crucible is used to prepare raw materials of environment-friendly optical glass or lanthanide optical glass at present. The main characteristics are that: the water stemming comprises a water stemming body, and an inlet pipe and an outlet pipe which are disposed on a lower end surface of the water stemming body; an upper end surface of the water stemming body is a conical surface fitted to a discharge hole with a cone angle of 110 DEG-130 DEG; the water stemming body is made of heat-resistant stainless steel with an external diameter of phi 36-phi 45 mm, a wall thickness of not less than 3.5 mm, and an upper end surface thickness of not less than 4 mm; an upper port of the outlet pipe is higher than an upper port of the inlet pipe by 8 mm-12 mm. The invention is characterized in that: the invention not only meets the production requirements of a quartz crucible material-preparation furnace, but also effectively protects the quartz crucible, reduces production cost, and improves production efficiency, and the invention is mainly used to plugging the discharge hole at the crucible bottom when a quartz crucible is used to prepare raw materials of environment-friendly optical glass or lanthanide optical glass.

The invention discloses a railway signal relay socket, which comprises a relay base connected with a relay, wherein a wiring connection terminal part is formed on the other lateral surface of the relay base, and wires in the relay base are all connected with external wirings through the wiring connection terminal part. The railway signal relay socket can greatly reduce examining and maintaining time of the railway signal relay, simplify the wiring work steps, and improve the work efficiency.

The invention relates to a transformer cooler intelligent control device fault automatic restoration system and method; the fault automatic restoration system comprises the following units: a main control module used for managing operation of air-cooling control module, collecting and gathering analog quantity and switching value data from the air-cooling control module, managing work switches of the air-cooling control module, and recording and storing an alarm event and a motion event; at least one air-cooling control module used for sampling electric quantity and switching value of a cooler, and detecting and ruling out cooler faults; a backboard module used for realizing communication between the main control module and the air-cooling control modules; a power supply module used for providing power for the system. By using the system and method, the air cooling control device system is stronger, and maintenance people can operate on a local interface for ruling out faults and maintenance when device field fault happens; or the system automatic restoration method is provided, so fault plug-ins can be automatically replaced, and artificial manual operation is omitted.

The invention belongs to the technical field of nuclear power station power transmission and distribution and protection. The invention provides an electrified detection system for an oil-immersed transformer of a nuclear power station. The system comprises a sleeve voltage-sharing cover vibration measurement module and a nuclear power station oil-immersed transformer. The nuclear power station oil-immersed transformer comprises a shell, a high-voltage sleeve, a sleeve lead and a voltage equalizing cover, and the high-voltage sleeve comprises a sleeve body and a sleeve shell arranged outside the sleeve body in a sleeving mode. A sleeve ascending flanged base is arranged on the shell; the sleeve shell is installed on the sleeve ascending flanged base, one end of the high-voltage sleeve extends into the shell, the other end of the high-voltage sleeve extends out of the shell, the sleeve body at an end, located in the shell, of the high-voltage sleeve is connected with the sleeve lead, and the voltage equalizing cover is fixed to the sleeve body through a bolt and wraps the connection of the sleeve lead and the sleeve body. Through the system provided by the invention, the fault problem of the voltage equalizing cover in the oil-immersed transformer can be efficiently positioned and detected, and the overall detection efficiency of the oil-immersed transformer is further improved.

The invention relates to a grate plate protection movable block of a single-tooth roller crusher convenient for disassembly and replacement. The grate plate protection movable block comprises a grate plate body and a protection movable block connected with the grate plate body, and is characterized in that the protection movable block consists of a left end movable block, a right end movable block and a middle movable block; the normal sections of the left and right end movable blocks and the middle movable block are long structural bodies with triangular upper parts and having regular trapezoidal insertion grooves in the lower parts; bolt holes are formed in the middle lower parts of the left and right end movable blocks and the middle movable block; the grate plate body is a long grate plate having regular trapezoidal bosses, matched with the regular trapezoidal insertion grooves, in the middle parts; bolt holes are also formed in the grate plate body; the regular trapezoidal insertion grooves of the protection movable block and the regular trapezoidal bosses of the grate plate body are inserted, and are fixedly connected through bolts, nuts and spring washers. The grate plate protection movable block has the advantages of simpleness and convenience for replacement, reduction of maintenance workload, shortening of maintenance time and reduction of spare part consumption.

The invention discloses a light emitting angle-adjustable bulb lamp, comprising a lamp cap and a lamp holder, wherein a centre shaft downwards extends out of the lamp holder, the lower end of the centre shaft is connected with a base structure with an illuminating effect, the bulb lamp further comprises a lamp body structure sleeving the centre shaft in a cylinder shape, the lamp body structure isdefined by a plurality of lamp bodies and set as a high-power illuminant, each lamp body comprises a heat dissipation plate connected to the base structure through a rotating shaft mechanism so as toswing to adjust the light emitting angle, a first LED light source structure and a light transmission cover covering the first LED light source structure, each rotating shaft mechanism comprises shaft seats which are assembled into a shaft lever, and a swing seat, each heat dissipation plate is fixed on the corresponding swing seat, each swing seat is internally provided with a rotating ring sleeving the corresponding shaft lever, first saw teeth of each rotating ring and second saw teeth on the corresponding shaft seat are mutually engaged so as to have a positioning effect on the rotation of the corresponding swing seat, and when an external force is applied on the swing seats, the first saw teeth rotate relative to the second saw teeth so as to swing and adjust the light emitting angleof the lamp bodies, so that the adjusting flexibility is high, and the bulb lamp is economic, practical and convenient.

The invention belongs to the technical field of power transmission, distribution and protection of nuclear power plants, and provides a live detection system for an oil-immersed transformer in a nuclear power plant, including a vibration measurement module for a bushing equalizing cover and an oil-immersed transformer in a nuclear power plant. The oil-immersed transformer in a nuclear power plant includes a shell , high-voltage bushing, bushing lead wire and pressure equalizing cover. The high-voltage bushing includes a bushing body and a bushing shell set outside the bushing body. On the elevated seat, one end of the high-voltage bushing extends into the casing, the other end of the high-voltage bushing extends out of the casing, the bushing body at one end of the high-voltage bushing is connected to the bushing lead wire, and the equalizing cover It is fixed on the bushing body by bolts and covered outside the connection between the bushing lead wire and the bushing body. The system provided by the invention can realize the function of efficiently locating and detecting the faults of the voltage equalizing cover in the oil-immersed transformer, and further improve the overall detection efficiency of the oil-immersed transformer.

The invention relates to the field of maintenance and overhaul of POC gas holders, and in particular relates to a method for realizing online inspection and replacement of a gas holder heat tracing system. The method is characterized by comprising the steps of 1 transforming the gas holder heat tracing system: 1.1 dividing 4 to 6 groups of in-chamber heating pipe bodies, 1.2 building an in-chamberheating pipe integral lifting and replacing system, 1.3 building a heat tracing pipe segmented leakage detection system; and 2 carrying out online inspection and replacement on the gas holder heat tracing system. By the adoption of the structural improvement and the matched use method, the problem of leakage of an internal tracing pipe in the operation stage of a POC type gas holder is solved, the overhaul and maintenance time is saved, resources consumed by overhaul are reduced, capital is saved, the overhaul time is shortened, the gas discharge amount is reduced, and the remarkable effect is achieved.

The invention belongs to the field of offshore drilling and particularly relates to an operating process of an offshore drilling shore-based supporting mud plant system. The system adopted by the operating process comprises a mobile pump skid integrated unit, a movable slurry preparing tank integrated unit, a movable storage tank integrated unit, a waste liquid treatment skid integrated unit and pipes, a control system and the like for connecting the integrated units. The operating process achieves drilling fluid preparation, transfer and recovery treatment functions and the like by conducting switching control on a working valve in the mud plant system. In the mud plant system, the integrated units are formed by setting different functions, quick transfer and quick assembly of a whole shore-based supporting mud plant can be achieved, the efficiency is high, and the economic benefits are very remarkable.

The invention belongs to the technical field of transfer equipment in mine, metallurgy and coal mine industries, and in particular, relates to a valve type lining plate quick replacement device for a discharge funnel. The device comprises a material receiving side plate of the discharge funnel; an easy wear lining plate replacement port is formed in the material receiving side plate; two limiting strip plates are arranged at the left and right side edges of the easy wear lining plate replacement port, and are connected with a lining plate rotating door assembly; the lining plate rotating door assembly consists of a rotating door sheet, two folds, a door sheet switch, a set of support plates, a set of lining plate hanging plates, a lining plate and a set of fastening bolts; and a seal pressing bar is arranged on the peripheral surface of the inner side of the rotating door sheet. The device skillfully designs a detachable mobile door to the openable rotating door plate; the lining plate to be replaced is hung on the rotating door plate; the installation can be finished along with the closing of the rotating door plate; the complex work of replacing the lining plate in the discharge funnel becomes simple and convenient; the maintenance workload is reduced; the maintenance time is shortened; and the operability is improved.

The invention discloses a sector-shaped section overhauling arc butting device of an H-type blank continuous casting machine. The sector-shaped section overhauling arc butting device comprises a sector-shaped section supporting frame, a standard verifying device and an auxiliary arc butting device, wherein the standard verifying device comprises a standard platform, an H-shaped standard block and a first positioning standard device; the auxiliary arc butting device comprises a supporting plate, a basic plane adjusting plate and a second positioning standard device; the front end of the sector-shaped section supporting frame is provided with a front end positioning device which is the same as the first positioning standard device in structure; and the rear end of the sector-shaped section supporting frame is provided with a rear end positioning device which is the same as the second positioning standard device in structure. All standard positions of an arc butting sample plate can be determined by one time of verification; in a detection process, the arc butting sample plate is placed at a corresponding front end foot roller device supporting roller and the basic plane adjusting plate of the auxiliary arc butting device, namely the distance of each supporting roller on the adjustable sector-shaped section to the arc butting sample plate can be adjusted and the overhauling work of the sector-shaped section of the continuous casting machine is simplified; and the overhauling and maintaining time of each group of the supporting roller of the sector-shaped section can be greatly shortened and the working efficiency is improved.

The invention relates to a hydraulic oil quality on-line guarantee system for a hydraulic hoist of a hydropower station, which comprises an oil return main pipe, an oil supply main pipe and an accident oil main pipe, the oil return main pipe, the oil supply main pipe and the accident oil main pipe are communicated with an oil tank of the hydraulic hoist through pressure hoses, and the accident oil main pipe is communicated with an accident oil pool. An accident oil pump is connected to a pipeline between the accident oil header pipe and the accident oil pool; the oil return system is communicated with the oil return header pipe and comprises an oil return pump and an oil return tank, and the oil return pump is mounted between the oil return tank and the oil return header pipe; the oil supply system is communicated with the oil supply header pipe and comprises an oil supply pump and an oil purification tank, and the oil supply pump is mounted between the oil purification tank and the oil supply header pipe; and the oil filtering system is connected between the oil return system and the oil supply system. The hydraulic oil of the hydraulic hoist of the hydropower station can be monitored in real time and replaced and filtered in time, and stable and safe operation of the hydropower station is guaranteed.

The invention discloses a masonry construction structure of a heating furnace bottom. The masonry construction structure comprises a fixed furnace bottom brick base, a movable furnace bottom brick base and a right furnace bottom brick base, wherein the fixed furnace bottom brick base is connected with a furnace layer; the furnace layer is provided with a first high-strength lightweight brick and a first irregular brick; the first high-strength lightweight brick and the first irregular brick are provided with a first amorphous refractory material layer; the movable furnace bottom brick base is connected with a lightweight brick layer which is provided with a second high-strength lightweight brick and second irregular bricks, and the second high-strength lightweight brick and the second irregular bricks are provided with a second amorphous refractory material layer; the bottom of the movable furnace bottom brick base is connected with an I-shaped steel device; the right furnace bottom brick base is connected with a right wall body layer; the right wall body layer is provided with a third high-strength lightweight brick and third irregular bricks; the third high-strength lightweight brick and the third irregular bricks are provided with a third amorphous refractory material layer. The masonry construction structure has the characteristics of being simple in structure, easy to operate and construct, and capable of improving the operation efficiency of a heating furnace.

The invention discloses a lithium battery electric automobile. The lithium battery electric automobile comprises a driving motor, a transmission shaft, a back driving axle, front wheels, back wheels, an underbody and a storage room, wherein the storage room is positioned on the tail part of the automobile; the driving motor is arranged on the middle part of the automobile, and is connected with the back driving axle through the transmission shaft; a power battery pack is formed by connecting a first battery pack, a middle secondary battery pack, a tail high-level battery pack and a tail low-level battery pack in series; the middle first battery pack space and the middle secondary battery pack space are provided with access doors respectively; the tail high-level battery pack is positioned in the storage room above the underbody; the tail low-level battery pack is positioned below the tail high-level battery pack. Compared with the way of arranging the power battery pack at the middle position of the automobile, the lithium battery electric automobile has the advantages that internal components do not need to be detached during overhauling and maintenance, convenience is brought to overhauling and maintenance, the overhauling and maintenance time is shortened, the overhauling and maintenance workload is lowered, and the overhauling and maintenance cost is lowered.

The invention discloses a manufacturing method of big and small toothed plates for an angle adjuster of a car seat. The manufacturing method comprises a bearing platform, wherein four second electricpush rods are fixedly connected to the top of the bearing platform; a machining toothed plate is arranged on the top of the bearing platform; the four second electric push rods are positioned at fourcorners of the machining toothed plate; L-shaped positioning pieces are fixedly connected to the output ends of the second electric push rods; a plurality of support bases are connected to the bottomof the bearing platform and are connected with the side faces of the bearing platforms in a sliding manner; and first electric push rods are connected to the side faces of the support bases through connecting rods. According to the manufacturing method disclosed by the invention, through cooperative operation among transmission mechanisms, when milling and cutting are performed, toothed slot machining on the machining toothed plate can be performed through milling and cutting pieces, so that formation of the procedure which requires working of several machines at present is avoided, and thus,the usage of the machines is reduced, the detection and repairing time of the machines is correspondingly reduced, and the machining of the machining toothed plate is more reasonable and effective.

The invention relates to a transformer cooler intelligent control device fault automatic restoration system and method; the fault automatic restoration system comprises the following units: a main control module used for managing operation of air-cooling control module, collecting and gathering analog quantity and switching value data from the air-cooling control module, managing work switches of the air-cooling control module, and recording and storing an alarm event and a motion event; at least one air-cooling control module used for sampling electric quantity and switching value of a cooler, and detecting and ruling out cooler faults; a backboard module used for realizing communication between the main control module and the air-cooling control modules; a power supply module used for providing power for the system. By using the system and method, the air cooling control device system is stronger, and maintenance people can operate on a local interface for ruling out faults and maintenance when device field fault happens; or the system automatic restoration method is provided, so fault plug-ins can be automatically replaced, and artificial manual operation is omitted.

The invention provides a medium-voltage cable intermediate joint operating state real-time three-level monitoring and protection system, which comprises an on-site acquisition terminal, a main station monitoring platform and a mobile APP monitoring platform, and adopts an on-site automatic fire extinguishing device and a main station manual fire extinguishing device as main protection and standby protection respectively. The monitoring quantity of field data acquisition comprises current, temperature, humidity, partial discharge and smoke sensing, automatic fire extinguishing is adopted according to the temperature, and filtered measurement data is uploaded to a main station monitoring platform through GPRS. Through a main protection (automatic)-standby protection (manual) dual fire protection system, the problem of insufficient reliability of a single mode can be effectively solved, and the reliability of fire extinguishing action is improved. Based on a multi-sensor data fusion technology, the utilization rate of data and the precision of state monitoring, early warning and action of the terminal control platform are effectively improved, and the problems of false alarm and missing alarm caused by single monitoring quantity or faults of a field microcontroller are avoided.

The invention relates to a grate plate protection movable block of a single-tooth roller crusher convenient for disassembly and replacement. The grate plate protection movable block comprises a grate plate body and a protection movable block connected with the grate plate body, and is characterized in that the protection movable block consists of a left end movable block, a right end movable block and a middle movable block; the normal sections of the left and right end movable blocks and the middle movable block are long structural bodies with triangular upper parts and having regular trapezoidal insertion grooves in the lower parts; bolt holes are formed in the middle lower parts of the left and right end movable blocks and the middle movable block; the grate plate body is a long grate plate having regular trapezoidal bosses, matched with the regular trapezoidal insertion grooves, in the middle parts; bolt holes are also formed in the grate plate body; the regular trapezoidal insertion grooves of the protection movable block and the regular trapezoidal bosses of the grate plate body are inserted, and are fixedly connected through bolts, nuts and spring washers. The grate plate protection movable block has the advantages of simpleness and convenience for replacement, reduction of maintenance workload, shortening of maintenance time and reduction of spare part consumption.

The invention provides a floating valve tower cleaning system and method, and the floating valve tower cleaning system comprises a floating valve tower, a first pipeline, a regulating valve group, a gas phase outlet valve, a safety valve group, a silencing valve group, a steam reboiling mechanism, a cooling mechanism, a second pipeline and a nitrogen mechanism, the first pipeline is connected with the top of the floating valve tower through a pipeline by virtue of the adjusting valve group, the gas phase outlet valve is connected with the top of the floating valve tower through a pipeline, and the safety valve group is connected with the pipeline between the gas phase outlet valve and the floating valve tower through a pipeline; the noise reduction valve group is connected with a pipeline between the gas phase outlet valve and the safety valve group through a pipeline, the steam reboiling mechanism and the cooling mechanism are respectively connected with the bottom of the float valve tower through pipelines, the second pipeline is connected with the middle of the float valve tower, and the nitrogen mechanism is connected to the second pipeline.