Maintenance system for precast beam yard

Abstract

The invention discloses a maintenance system for a precast beam yard. The maintenance system comprises a sedimentation reservoir group, a plurality of pedestals, a water supply pipeline, a steam supply pipeline, a maintenance shed and a centralized control system, the precipitation reservoir group is connected with an external water supply system and overground drainage of the maintenance area and stores the drainage after precipitating and filtering the drainage, and the beam storage area is arranged on the ground above the precipitation reservoir group. Two ends of the water supply pipeline are respectively connected with the sedimentation reservoir group and the pedestals, and two ends of the steam supply pipeline are respectively connected with the water supply pipeline and the pedestals. The centralized control system is used for controlling the water supply pipeline or the steam supply pipeline to be opened according to requirements so that the corresponding maintenance water or the high-temperature steam can enter the corresponding pedestals, and the pedestals are used for evenly spraying the entering maintenance water or the high-temperature steam outwards to the precast beams supported on the pedestals. And the curing shed is used for covering the corresponding pedestal when high-temperature steam is sprayed. According to the system, high-temperature steam and curing shed curing can be adopted in winter, spraying curing is adopted in other seasons, and the curing effect in the whole period of beam manufacturing is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of precast beam construction in bridge engineering, and in particular to a precast beam yard maintenance system. Background Art

[0002] In the field of bridge engineering, the superstructure of the bridge mostly adopts the form of precast beams that are first simply supported and then continuous. Precast beams refer to beams that are precast in a beam yard and then transported to the site for installation and fixation according to the requirements of the drawings.

[0003] After the casting of beams and slabs is completed, whether the maintenance is in place is a key factor determining the quality of the beams and slabs. In actual projects, affected by various factors such as land use policies or site restrictions, a prefabricated beam site is responsible for a large number of prefabricated beams and a limited number of pedestals. The prefabrication cycle of beams and slabs often spans one or more summers and winters. Whether the maintenance measures in different seasons are reasonable has become one of the key factors determining the speed of beam and slab prefabrication and whether the prefabrication is smooth. At the same time, in order to save the construction cost of prefabricated beam sites, most beam sites are conventional beam sites. Compared with the mobile pedestals and maintenance sheds of smart beam sites, conventional beam sites have a large number of pedestals and are immovable. They are mainly maintained by mobile mechanisms that spray water back and forth along the prefabricated beams or pre-buried sprinkler pipes.

[0004] The existing technical maintenance method is mainly spray maintenance, which is difficult to maintain in winter, takes a long time to maintain, and seriously affects the progress of beam manufacturing. Summary of the invention

[0005] The present invention provides a prefabricated beam yard maintenance system to solve the technical problems that the existing maintenance method is mainly spray maintenance, winter maintenance is difficult, the maintenance time is long, and the progress of beam manufacturing is seriously affected.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A prefabricated beam yard maintenance system, comprising: a sedimentation water storage tank group pre-buried in the underground of the maintenance area, a beam storage area arranged on the ground of the maintenance area and a plurality of pedestals for beam and slab prefabrication and maintenance, a water supply pipeline for supplying maintenance water, a steam supply pipeline for supplying maintenance high-temperature steam, a plurality of maintenance sheds supported on the ground of the maintenance area for heat insulation and covering of the pedestals, and a centralized control system for automatic control, wherein each pedestal, water supply pipeline and steam supply pipeline are respectively connected to the centralized control system; the sedimentation water storage tank group is connected to an external water supply system for replenishing water, and the sedimentation water storage tank group is also connected to the water supply system on the ground of the maintenance area. The drainage is drained and stored after sedimentation and filtration, and the beam storage area is arranged on the ground above the sedimentation water storage tank group; the two ends of the water supply pipeline are respectively connected to the sedimentation water storage tank group and each pedestal, and the two ends of the steam supply pipeline are respectively connected to the water supply pipeline and each pedestal; the centralized control system is used to control the opening of the water supply pipeline or the steam supply pipeline according to demand to allow the corresponding maintenance water or high-temperature steam to enter the corresponding pedestal, and the pedestal is used to evenly spray the entering maintenance water or high-temperature steam outward through the maintenance nozzles pre-buried therein to maintain the prefabricated beams supported thereon; the maintenance shed is used to cover the corresponding pedestal when the high-temperature steam is sprayed.

[0008] Furthermore, the sedimentation and water storage tank group includes a multi-stage sedimentation tank and a water storage tank connected by a return pipe; the ground of the maintenance area is also provided with a number of longitudinal branch drainage ditches and transverse branch drainage ditches which are criss-crossed and interconnected, and a main drainage ditch connecting the two, and the main drainage ditch is connected to the multi-stage sedimentation tank, so that the drainage from the maintenance area flows into the multi-stage sedimentation tank for multi-stage sedimentation and filtration and then discharged into the water storage tank for storage; the water storage tank is connected to an external water supply system, and the water inlet end of the water supply pipeline is connected to the water storage tank.

[0009] Furthermore, a plurality of pedestals are divided into a plurality of pedestal groups spaced in sequence along the longitudinal direction of the maintenance area, and each pedestal group includes a plurality of pedestals spaced in sequence along the transverse direction of the maintenance area; longitudinal branch drainage ditches extending in the longitudinal direction are arranged between adjacent pedestals and outside the outermost pedestals, and transverse branch drainage ditches extending in the transverse direction are arranged between two adjacent groups of pedestals, and each longitudinal branch drainage ditch is connected to the transverse branch drainage ditch; the main drainage ditch is arranged on the periphery of the maintenance area, and the transverse branch drainage ditches are connected to the main drainage ditch.

[0010] Furthermore, the water supply pipeline includes a water supply main, a primary water supply pipe, multiple secondary water supply pipes, several water supply branches and a water supply booster pump arranged in the water supply main which are connected in sequence; the water inlet end of the water supply main is connected to the water reservoir, and the water supply booster pump is connected to the centralized control system; the primary water supply pipe is arranged along the longitudinal extension of the maintenance area to supply water to multiple groups of pedestals; multiple secondary water supply pipes are arranged transversely on one side of each group of pedestals and are respectively connected to the primary water supply pipe; and several water supply branches are connected one by one between several pedestals and corresponding secondary water supply pipes.

[0011] Furthermore, the steam supply pipeline includes a primary steam supply pipe, multiple secondary steam supply pipes, several steam supply branches, a steam generator and a steam pressure pump connected in sequence to the primary steam supply pipe; the primary steam supply pipe is arranged along the longitudinal extension of the maintenance area, and the steam inlet end of the primary steam supply pipe is connected to the steam pressure pump, and the steam generator is respectively connected to the water supply main and the steam pressure pump; multiple secondary steam supply pipes are arranged transversely on one side of each group of pedestals, and are respectively connected to the primary steam supply pipe; and several steam supply branches are connected one by one between several pedestals and corresponding secondary steam supply pipes.

[0012] Furthermore, the centralized control system includes a controller, and two transmission lines and a plurality of conductors respectively connected to the controller; the two transmission lines are also respectively connected to the steam generator and the steam pressure pump; the other ends of the plurality of conductors are connected one by one to the corresponding plurality of pedestals.

[0013] Furthermore, each pedestal includes a pedestal body extending along the longitudinal direction, a dual-channel solenoid valve arranged at the end of the pedestal body, an internal maintenance pipe extending along the longitudinal direction in the pedestal body, and a plurality of first telescopic nozzles connected to the internal maintenance pipe; the dual-channel solenoid valve is connected to a centralized control system, and the two inlets of the dual-channel solenoid valve are also respectively connected to corresponding water supply branches and steam supply branches, and the outlet of the dual-channel solenoid valve is connected to the internal maintenance pipe; the telescopic nozzle is used to spray maintenance water and high-temperature steam toward the prefabricated beams supported on the pedestal body.

[0014] Furthermore, the prefabricated beam yard maintenance system also includes an indoor box maintenance device for being arranged in the box chamber of the prefabricated box beam to perform spray maintenance on it. The indoor box maintenance device includes: a triangular support frame extending in the box chamber along the length direction of the prefabricated box beam, a movable wheel group connected to the bottom end of the triangular support frame, an external maintenance pipe longitudinally supported at the top end of the triangular support frame, and a plurality of second telescopic nozzles connected to the external maintenance pipe; the external maintenance pipe is connected to the internal maintenance pipe.

[0015] Furthermore, the pedestal also includes two installation chambers arranged at both ends of the pedestal body, a maintenance quick interface and a first interface switch arranged in each installation chamber; the dual-channel solenoid valve is arranged in one of the installation chambers; the two ends of the internal maintenance pipe extend into the two installation chambers respectively, and are connected to the maintenance quick interface and the first interface switch arranged in the corresponding installation chambers, and the maintenance quick interface is used to connect the external maintenance pipe.

[0016] Furthermore, the maintenance shed includes two groups of telescopic side frames arranged at relative intervals, an arc-shaped arch connected between the two groups of telescopic side frames, a rolling wheel group connected to the bottom of each telescopic side frame, and an insulating tarpaulin covering the two groups of telescopic side frames and the arc-shaped arch; the maintenance shed is supported on the ground of the maintenance area by the rolling wheel group, and the maintenance shed is telescopic and adjustable as a whole along its length direction.

[0017] The present invention has the following beneficial effects:

[0018] In the prefabricated beam yard maintenance system of the present invention, the sedimentation water storage tank group, water supply pipeline, steam supply pipeline and pipeline connecting the centralized control system are all pre-buried during the beam yard construction process, thereby solving the problem of multiple maintenance pipelines in the later stage leading to a messy layout, and can also effectively reduce safety hazards and facilitate on-site management; the water supply pipeline for providing spray water and the steam supply pipeline for providing high-temperature steam are respectively connected to the pedestal, thereby effectively solving the problem that conventional pedestals can only be maintained by spraying, so that the system of the present invention can adopt high-temperature steam + maintenance shed maintenance in winter, and spray maintenance in other seasons, ensuring the maintenance effect throughout the whole period of beam making, and all pedestals are also independent and separate. It is connected to the centralized control system, so that the corresponding pedestal can be started and stopped with one button through the operating console of the centralized control system, reducing the configuration of maintenance personnel and the labor intensity of maintenance personnel. It has a high degree of automation, and the prefabrication of beams and slabs can be carried out normally in all seasons without being affected by seasonal maintenance, thereby improving construction efficiency and safety, saving construction time, and reducing construction costs. The beam storage area and the sedimentation water storage tank group are arranged up and down, and the water used for beam field maintenance and rainwater finally enter the sedimentation water storage tank group for multi-stage sedimentation and filtration and then recycling, thereby effectively saving land and water resources. Especially for mountainous areas, it can effectively solve the problems of temporary construction land and water resource shortages, and the economic and social benefits are significant.

[0019] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 It is a schematic diagram of the plan layout of the precast beam yard maintenance system according to a preferred embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A side view of the layout of the center platform;

[0023] Figure 3 yes Figure 1 Schematic diagram of the layout of the middle platform;

[0024] Figure 4 yes Figure 1 Schematic diagram of self-balancing of the middle water reservoir;

[0025] Figure 5 yes Figure 1 Schematic diagram of the plan layout of the medium maintenance shed;

[0026] Figure 6 yes Figure 5Schematic diagram of the side view of the middle maintenance shed;

[0027] Figure 7 It is a schematic diagram of the maintenance of precast T beams;

[0028] Figure 8 It is a schematic diagram of the maintenance of prefabricated box beams;

[0029] Fig. 9 It is a schematic diagram of the maintenance device inside the box.

[0030] Legend:

[0031] 101. Multi-stage sedimentation tank; 102. Longitudinal branch drainage ditch; 103. Horizontal branch drainage ditch; 104. Main drainage ditch; 105. Reservoir; 106. Beam storage area;

[0032] 201, water supply main; 202, water supply booster pump; 203, external water supply system; 204, return pipe; 205, water level monitor; 206, filter device; 207, primary water supply pipe; 208, secondary water supply pipe; 209, water supply branch pipe;

[0033] 301, steam generator; 302, steam pressure pump; 304, primary steam supply pipe; 305, secondary steam supply pipe; 306, steam supply branch pipe; 4, pedestal; 401, pedestal body; 405, dual-channel solenoid valve; 406, internal maintenance pipe; 407, first telescopic nozzle; 408, temperature sensor; 409, external water quick interface; 410, second interface switch; 411, maintenance quick interface; 413, first interface switch; 415, installation chamber;

[0034] 501, controller; 502, transmission line; 503, conductor;

[0035] 6. Maintenance shed; 601. Vertical pole; 602. Connecting rod; 603. Circular ring; 604. Arc bar; 605. Rolling wheel; 606. Channel steel; 7. Maintenance device in the box chamber; 701. Tripod; 702. Moving wheel; 703. External maintenance pipe; 704. Second telescopic nozzle; 801. Prefabricated T-beam; 802. Prefabricated box beam. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0037] Reference Figure 1The preferred embodiment of the present invention provides a prefabricated beam yard maintenance system, including: a sedimentation water storage tank group pre-buried in the underground of the maintenance area, a beam storage area 106 arranged on the ground of the maintenance area, and a plurality of pedestals 4 for beam and slab prefabrication and maintenance, a water supply pipeline for supplying maintenance water, a steam supply pipeline for supplying high-temperature steam for maintenance, a plurality of maintenance sheds 6 supported on the ground of the maintenance area for heat insulation and covering the pedestals 4, and a centralized control system for automatic control. Each pedestal 4, water supply pipeline and steam supply pipeline are respectively connected to the centralized control system. The sedimentation water storage tank group is connected to the external water supply system 203 to replenish water, and the sedimentation water storage tank group is also connected to the drainage on the ground of the maintenance area and stores the drainage after sedimentation and filtration. The beam storage area 106 is arranged on the ground above the sedimentation water storage tank group. The two ends of the water supply pipeline are respectively connected to the sedimentation water storage tank group and each pedestal 4, and the two ends of the steam supply pipeline are respectively connected to the water supply pipeline and each pedestal 4. The centralized control system is used to control the opening of the water supply pipeline or steam supply pipeline according to demand so that the corresponding curing water or high-temperature steam enters the corresponding pedestal 4. The pedestal 4 is used to uniformly spray the curing water or high-temperature steam entering through the curing nozzles pre-buried therein to cure the precast beams supported thereon. The curing shed 6 is used to cover the corresponding pedestal 4 when the high-temperature steam is sprayed.

[0038] In the prefabricated beam yard maintenance system of the present invention, the sedimentation water storage tank group, water supply pipeline, steam supply pipeline and pipeline connecting the centralized control system are all pre-buried during the beam yard construction process, thereby solving the problem of multiple maintenance pipelines in the later stage leading to a messy layout, and can also effectively reduce safety hazards and facilitate on-site management; the water supply pipeline for providing spray water and the steam supply pipeline for providing high-temperature steam are respectively connected to the pedestal 4, thereby effectively solving the problem that conventional pedestals can only be maintained by spraying, so that the system of the present invention can adopt high-temperature steam + maintenance shed 6 for maintenance in winter, and spray maintenance in other seasons, ensuring the maintenance effect within the whole period of beam making, and all pedestals 4 are also independent and respectively It is connected to the centralized control system, so that the corresponding pedestal 4 can be started and stopped with one button through the operating console of the centralized control system, reducing the configuration of maintenance personnel and the labor intensity of maintenance personnel. It has a high degree of automation, and the prefabrication of beams and slabs in all seasons can be carried out normally without being affected by seasonal maintenance, thereby improving construction efficiency and safety, saving construction time, and reducing construction costs; the beam storage area 106 and the sedimentation reservoir group are arranged up and down, and the water used for beam field maintenance and rainwater finally enter the sedimentation reservoir group for multi-stage sedimentation and filtration and then recycled, thereby effectively saving land and water resources, especially for mountainous areas, which can effectively solve the problems of temporary construction land and water resource shortages, and have significant economic and social benefits.

[0039] Alternatively, if Figure 1As shown, the sedimentation and water storage tank group includes a multi-stage sedimentation tank 101 and a water storage tank 105 connected by a return pipe 204. A plurality of longitudinal branch drainage ditches 102 and transverse branch drainage ditches 103 arranged in a crisscross pattern and interconnected with each other are arranged on the ground of the maintenance area, and a main drainage ditch 104 connecting the two is arranged. The main drainage ditch 104 is connected to the multi-stage sedimentation tank 101, so that the drainage of the maintenance area flows into the multi-stage sedimentation tank 101 for multi-stage sedimentation and filtration, and then is discharged into the water storage tank 105 for storage. The water storage tank 105 is connected to the external water supply system 203, and the water inlet end of the water supply pipeline is connected to the water storage tank 105. During operation, the water used for beam yard maintenance and rainwater first enters the longitudinal branch drainage ditch 102, then flows into the transverse branch drainage ditch 103, and finally converges into the main drainage ditch 104, and then enters the multi-stage sedimentation tank 101 from the main drainage ditch 104. After multi-stage sedimentation, it is finally discharged into the reservoir 105 for storage and then recycling, thereby effectively saving water resources. Especially for mountainous areas, it can effectively solve the problem of water shortage for temporary construction, with significant economic and social benefits.

[0040] In this alternative, combined with Figure 5 As shown, a plurality of pedestals 4 are divided into a plurality of pedestal groups arranged in sequence along the longitudinal direction of the maintenance area, and each pedestal group includes a plurality of pedestals 4 arranged in sequence along the transverse direction of the maintenance area. A longitudinal branch drainage ditch 102 extending in the longitudinal direction is arranged between adjacent pedestals 4 and outside the outermost pedestals 4, and a transverse branch drainage ditch 103 extending in the transverse direction is arranged between two adjacent pedestal groups, and each longitudinal branch drainage ditch 102 is connected to the transverse branch drainage ditch 103. The main drainage ditch 104 is arranged at the periphery of the maintenance area, and the transverse branch drainage ditch 103 is connected to the main drainage ditch 104. This layout of a plurality of pedestals 4 not only makes the entire beam field layout structure compact, thereby reducing land use to solve the problem of land resource shortage in mountainous areas, thereby improving economic benefits, but also facilitates the layout of subsequent water supply pipelines and steam supply pipelines, avoids a messy layout, and effectively reduces safety hazards.

[0041] Furthermore, combined with Figure 4 As shown, the water reservoir 105, the external water supply system 203, the water supply pipeline and the return pipe 204 form a dynamic balance. A water level monitor 205 for monitoring the water level is also provided in the water reservoir 105. Under daily maintenance conditions, when the water level of the water reservoir 105 is equal to or higher than the monitoring water level set by the water level monitor 205, the external water supply system 203 is closed; when the water level of the water reservoir 105 is lower than the monitoring water level set by the water level monitor 205, the external water supply system 203 automatically starts to replenish water to the water reservoir 105 until the monitoring water level set by the water level monitor 205 is reached. The water supply pipeline is also provided with a filtering device 206 for filtering to ensure that the water entering the maintenance system is free of impurities.

[0042] Alternatively, if Figure 1-3As shown, the water supply pipeline includes a water supply main 201, a primary water supply pipe 207, a plurality of secondary water supply pipes 208, a plurality of water supply branches 209, and a water supply booster pump 202 arranged in the water supply main 201. The water inlet end of the water supply main 201 is connected to the water reservoir 105, and the water supply booster pump 202 is connected to the centralized control system. The primary water supply pipe 207 is arranged along the longitudinal extension of the maintenance area to supply water to multiple groups of pedestal groups. Multiple secondary water supply pipes 208 are arranged transversely on one side of each group of pedestal groups and are respectively connected to the primary water supply pipe 207. A plurality of water supply branches 209 are connected one by one between a plurality of pedestals 4 and the corresponding secondary water supply pipes 208. During operation, the water supply main 201 draws water from the water reservoir 105 through the water supply booster pump 202, and the maintenance water is then diverted to multiple secondary water supply pipes 208 through the primary water supply pipe 207, and finally dispersed into the water supply branch pipes 209 at the front end of each pedestal through multiple secondary water supply pipes 208; in actual design, the water supply pipeline is pre-buried in a conventional manner and no insulation measures are taken.

[0043] Alternatively, if Figure 1-3 As shown, the steam supply pipeline includes a first-level steam supply pipe 304, a plurality of second-level steam supply pipes 305, a plurality of steam supply branches 306, a steam generator 301 and a steam pressure pump 302 connected in sequence to the first-level steam supply pipe 304. The first-level steam supply pipe 304 is arranged along the longitudinal extension of the maintenance area, and the steam inlet end of the first-level steam supply pipe 304 is connected to the steam pressure pump 302. The steam generator 301 is connected to the water supply main 201 and the steam pressure pump 302 respectively, and the steam generator relies on the water supply main 201 for water supply. A plurality of second-level steam supply pipes 305 are arranged transversely on one side of each group of pedestal groups, and are respectively connected to the first-level steam supply pipe 304. A plurality of steam supply branches 306 are connected one by one between a plurality of pedestals 4 and the corresponding second-level steam supply pipes 305. During operation, the water supply main 201 is connected to the neat steam generator 301 to take water as the water source of the steam generator. The steam output end of the steam generator 301 is externally connected to a steam pressure pump 302. The high-temperature steam then enters the primary steam supply pipe 304, and then disperses into multiple secondary steam supply pipes 305, and finally disperses into the steam supply branch pipes 306 at the front end of each pedestal 4. In actual design, the steam supply pipelines all use high-temperature resistant pipes and are wrapped with high-temperature resistant rubber and plastic insulation materials.

[0044] Alternatively, if Figure 1 As shown, the centralized control system includes a controller 501, and two transmission lines 502 and a plurality of wires 503 respectively connected to the controller 501. The two transmission lines 502 are also respectively connected to the steam generator 301 and the steam pressure pump 302. The other ends of the plurality of wires 503 are connected to the corresponding plurality of pedestals 4 one by one; in actual design, the pedestal number corresponding to each dual-channel solenoid valve 405 corresponds to the number of the connection end of the centralized control system one by one, so as to accurately control the start and stop of the maintenance system in each pedestal.

[0045] Alternatively, if Figure 1-3 As shown, each pedestal 4 includes a pedestal body 401 extending in the longitudinal direction, a dual-channel solenoid valve 405 arranged at the end of the pedestal body 401, an internal maintenance pipe 406 extending in the longitudinal direction and arranged in the pedestal body 401, and a plurality of first telescopic nozzles 407 connected to the internal maintenance pipe 406. The dual-channel solenoid valve 405 is connected to the centralized control system, and the two inlets of the dual-channel solenoid valve 405 are also respectively connected to the corresponding water supply branch pipe 209 and steam supply branch pipe 306, and the outlet of the dual-channel solenoid valve 405 is connected to the internal maintenance pipe 406. The telescopic nozzle is used to spray maintenance water and high-temperature steam toward the prefabricated beam supported on the pedestal body 401. In this optional solution, the internal maintenance pipe 406 adopts a high-temperature resistant pipe, and the outside of the high-temperature resistant pipe is wrapped with a high-temperature resistant rubber and plastic insulation material; the high-temperature resistant first telescopic nozzles 407 are evenly arranged along both sides of the pipeline, and the maintenance water and high-temperature steam share the internal maintenance pipe 406 and the first telescopic nozzle 407.

[0046] Preferably, if Figure 2-3 As shown, each pedestal 4 further includes a temperature sensor 408 disposed in the pedestal body 401 , and the temperature sensor 408 is connected to a wire 503 in the corresponding pedestal body 401 . During operation, the temperature sensor 408 is used to monitor the temperature of the steam curing in each curing shed 6 and feed it back to the centralized control system. The centralized control system analyzes the monitored temperature data and controls the operating power of the steam generator 301 based on the monitoring results. The steam generator 301 and the steam pressure pump 302 are connected to the centralized control system via the transmission line 502 and are controlled by the centralized control system. In addition, the centralized control system is also responsible for the maintenance control of all pedestals 4, including the switch of the dual-channel solenoid valve 405 of each pedestal 4, the selection of the maintenance of the water supply branch pipe 209 and the steam supply branch pipe 306, the collection of the pressure of the water supply branch pipe 209 and the steam supply branch pipe 306 detected by each dual-channel solenoid valve 405, the collection of the curing temperature in the curing shed 6 monitored by the temperature sensor 408 in each pedestal 4, and the control of the steam generator 301 and the steam pressure pump 302 connected via the transmission line 502.

[0047] Preferably, if Figure 2-3 As shown, each pedestal 4 is provided with an external water quick interface 409 on the water supply branch pipe 209 at the front end of the dual-channel solenoid valve 405. The external water quick interface 409 is not affected by whether the pedestal 4 has prefabricated beams that need maintenance, and is controlled by the second interface switch 410 so that it can be used at any time.

[0048] Alternatively, if Figure 8-9As shown, the precast beam yard maintenance system also includes an in-box maintenance device 7 for being arranged in the box of the precast box beam 802 for spraying and maintaining it. The in-box maintenance device 7 includes: a triangular support frame extending in the box along the length direction of the precast box beam 802, a moving wheel set connected to the bottom end of the triangular support frame, an external maintenance pipe 703 supported longitudinally at the top end of the triangular support frame, and a plurality of second telescopic spray heads 704 connected to the external maintenance pipe 703. The external maintenance pipe 703 is connected to the internal maintenance pipe 406. In this optional solution, as Fig. 9 As shown, the tripod support includes a plurality of tripods 701 arranged in sequence along the length direction of the chamber, and the plurality of tripods 701 are connected as a whole through an external maintenance pipe 703 at the top; the moving wheel group includes a moving wheel 702 arranged at the bottom end of each tripod 701.

[0049] Optionally, the pedestal 4 further includes two installation chambers 415 arranged at both ends of the pedestal body 401, a maintenance quick interface 411 and a first interface switch 413 arranged in each installation chamber 415. The dual-channel solenoid valve 405 is arranged in one of the installation chambers 415. Both ends of the inner maintenance pipe 406 extend into the two installation chambers 415 respectively, and are connected to the maintenance quick interface 411 and the first interface switch 413 provided in the corresponding installation chambers 415, and the maintenance quick interface 411 is used to connect the outer maintenance pipe 703. When in use, first connect the external maintenance device and then turn on the first interface switch 413. The maintenance quick interface 411 is controlled by the dual-channel solenoid valve 405 and is used and closed synchronously with the precast beam maintenance. The maintenance quick interface 411 can be used to connect external maintenance equipment, such as the box chamber maintenance device 7 of the precast box beam 802 and the top plate maintenance of the precast T-beam 801; when in use, move the box chamber maintenance device 7 from one end of the precast box beam 802 into the box chamber, connect the maintenance quick interface 411 on the pedestal 4, and turn on the first interface switch 413 to start the box chamber maintenance.

[0050] Alternatively, if Figure 6-7 As shown, the maintenance shed 6 includes two sets of telescopic side frames arranged at a relative interval, an arc-shaped arch connected between the two sets of telescopic side frames, a rolling wheel group connected to the bottom of each telescopic side frame, and a heat-insulating tarpaulin covering the two sets of telescopic side frames and the arc-shaped arch. The maintenance shed 6 is supported on the ground of the maintenance area by the rolling wheel group, and the maintenance shed 6 is telescopic and adjustable along its length.

[0051] In this option, if Figure 6As shown, the telescopic side frame includes a plurality of vertical poles 601 arranged in sequence at intervals, a connecting ring fixed to the upper end of each pole, a ring 603 slidably inserted on the outer circle of each pole 601, and two connecting rods 602 arranged crosswise between each two adjacent poles 601, the upper end of each connecting rod 602 is respectively connected to two connecting rings, and the lower end of each connecting rod 602 is respectively connected to the ring 603; the arc-shaped vault includes an arc-shaped bar 604 arranged corresponding to the plurality of poles 601, and the two ends of the arc-shaped bar 604 are respectively connected to the top of the two corresponding poles 601 on the two sets of telescopic side frames. The sliding wheel group includes a rolling wheel 605 arranged at the bottom end of each pole 601. When the maintenance shed 6 is stretched longitudinally, the ring on the pole 601 moves upward, and if it is contracted, the ring 603 on the pole 601 moves downward, so as to realize the longitudinal contraction of the maintenance shed 6. The thermal insulation tarpaulin is resistant to high temperatures, and the arc-shaped arch is used to avoid water accumulation; the rolling wheel 605 can move along the pre-buried channel steel 606 on the ground of the maintenance area, and the rolling wheels 605 at both ends are also provided with locking devices. When the maintenance shed is moved longitudinally into place, the rolling wheel 605 is locked; the pre-buried channel steel 606 has notches facing upward and is arranged along both sides of a prefabricated beam production line. The upper end of the channel steel 606 is flush with the hardened ground to ensure that there is no water accumulation on the ground and does not affect other operations. The channel steel 606 can also be used as a longitudinal drainage ditch in the beam yard; the maintenance shed 6 can move back and forth along the channel steel 606 within a production line for the maintenance of prefabricated beams on different pedestals 4, and can also be longitudinally retracted and hoisted to other production lines by equipment such as gantry cranes for use.

[0052] In the present invention, a precast beam is cast on the pedestal 4, the mold is removed, and the curing stage is prepared as an example for introduction, which mainly includes the following steps:

[0053] 1. Confirm the pedestal number of the precast beam to be maintained, and identify the corresponding control end on the operation console of the centralized control system according to the pedestal number;

[0054] 2. According to the construction environment temperature, it is determined whether it is spray curing or winter high-temperature steam curing. If it is high-temperature steam curing, the mobile curing shed 6 needs to be longitudinally moved or hoisted in place in advance, and the rolling wheels 605 at both ends need to be locked by the locking devices at both ends;

[0055] 3. If it is a prefabricated box beam 802, the outer curing pipe 703 of the curing device 7 in the box room needs to be connected to the curing quick interface 411 in advance;

[0056] 4. Open the dual-channel solenoid valve 405 corresponding to the seat number according to the actual maintenance needs at the centralized control system operation console. When the seat 4 is not maintained, the dual-channel solenoid valve 405 in the corresponding seat is in a closed state, and neither water nor steam can pass through; if it is spray maintenance, the dual-channel solenoid valve 405 opens the water supply branch pipe 209, and closes the steam supply branch pipe 306. Under the action of pressure, water passes through the primary water supply pipe 207, the secondary water supply pipe 208, and the water supply branch pipe 209, and then enters the internal maintenance pipe 406 in the seat 4 through the dual-channel solenoid valve 405, and is rotated through the evenly arranged first telescopic nozzles 407 for spray maintenance; if high-temperature steam maintenance is used in winter, the gas supply pipeline is opened, the steam supply branch pipe 306 is opened, and the water supply branch pipe 209 is opened. Close, and at the same time, the centralized control system transmits the command to the steam generator 301 through the transmission line 502, and the steam generator 301 starts to work and generates high-temperature steam. After being pressurized by the steam pressure pump 302 at the rear end of the steam generator 301, it is transmitted to the first-level steam supply pipe 304, the second-level steam supply pipe 305 and the steam supply branch pipe 306 in sequence, and then enters the pedestal 4 through the dual-channel solenoid valve 405, and starts maintenance through the first telescopic nozzle 407. If multiple pedestals 4 are maintained at the same time, the steam pressure delivered to each pedestal will be reduced, and the dual-channel solenoid valve 405 will feed back the passing pressure to the centralized control system. The centralized control system compares it according to the set maintenance pressure and dynamically adjusts the power of the steam pressure pump 302;

[0057] 5. The water dripping to the ground during spraying and curing flows to the main drainage ditch 104 through the longitudinal branch drainage ditch 102 and the transverse branch drainage ditch 103 of the beam yard. The main drainage ditch 104 flows to the multi-stage sedimentation tank 101, and flows into the reservoir 105 after filtration. The water for curing is recycled;

[0058] 6. When the maintenance age is reached and the strength meets the requirements, the maintenance of the current pedestal is turned off. The dual-channel solenoid valve 405 simultaneously closes the water supply branch pipe 209 and the steam supply branch pipe 306. The maintenance system of the current pedestal is turned off, and the maintenance of one precast beam is completed. The maintenance of the remaining beams or multiple beams is the same as this step.

[0059] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A precast beam yard maintenance system, characterized in that: include: A sedimentation water storage tank group pre-buried in the ground of the maintenance area, a beam storage area (106) arranged on the ground of the maintenance area and a plurality of pedestals (4) for beam and slab prefabrication and maintenance, a water supply pipeline for supplying maintenance water, a steam supply pipeline for supplying high-temperature steam for maintenance, a plurality of maintenance sheds (6) supported on the ground of the maintenance area for heat insulation and covering the pedestals (4), and a centralized control system for automatic control, wherein the water supply pipeline and steam supply pipeline of each pedestal (4) are respectively connected to the centralized control system; The sedimentation water storage tank group is connected to an external water supply system (203) to replenish water. The sedimentation water storage tank group is also connected to the drainage on the ground of the maintenance area and stores the drainage after sedimentation and filtration. The beam storage area (106) is arranged on the ground above the sedimentation water storage tank group; The two ends of the water supply pipeline are respectively connected to the sedimentation water storage tank group and each pedestal (4), and the two ends of the steam supply pipeline are respectively connected to the water supply pipeline and each pedestal (4); The centralized control system is used to control the opening of the water supply pipeline or the steam supply pipeline according to demand so that the corresponding curing water or high-temperature steam enters the corresponding pedestal (4), and the pedestal (4) is used to uniformly spray the entering curing water or high-temperature steam outward through the curing nozzle pre-buried therein to cure the precast beam supported thereon; The curing shed (6) is used to cover the corresponding pedestal (4) during high-temperature steam spraying.

2. The precast beam yard maintenance system according to claim 1, characterized in that: The sedimentation and water storage tank group includes a multi-stage sedimentation tank (101) and a water storage tank (105) connected via a return pipe (204); A plurality of longitudinal branch drainage ditches (102) and transverse branch drainage ditches (103) arranged in a crisscross pattern and interconnected with each other are arranged on the ground of the maintenance area, and a main drainage ditch (104) connecting the two is arranged. The main drainage ditch (104) is connected to the multi-stage sedimentation tank (101), so that the drainage from the maintenance area flows into the multi-stage sedimentation tank (101) for multi-stage sedimentation and filtration, and then is discharged into the water storage tank (105) for storage; The water reservoir (105) is connected to the external water supply system (203), and the water inlet end of the water supply pipeline is connected to the water reservoir (105).

3. The precast beam yard maintenance system according to claim 2, characterized in that: The plurality of pedestals (4) are divided into a plurality of pedestal groups arranged in sequence and at intervals along the longitudinal direction of the curing area, and each pedestal group includes a plurality of pedestals (4) arranged in sequence and at intervals along the transverse direction of the curing area; Longitudinal branch drainage ditches (102) extending in the longitudinal direction are evenly arranged between adjacent pedestals (4) and outside the outermost pedestals (4), and transverse branch drainage ditches (103) extending in the transverse direction are arranged between two adjacent groups of pedestals, and each longitudinal branch drainage ditches (102) is connected to the transverse branch drainage ditches (103); The main drainage ditch (104) is arranged at the periphery of the maintenance area, and the transverse branch drainage ditch (103) is connected to the main drainage ditch (104).

4. The precast beam yard maintenance system according to claim 3, characterized in that: The water supply pipeline comprises a water supply main pipe (201), a primary water supply pipe (207), a plurality of secondary water supply pipes (208), a plurality of water supply branch pipes (209), and a water supply booster pump (202) arranged in the water supply main pipe (201), which are connected in sequence; The water inlet end of the water supply main (201) is connected to the water reservoir (105), and the water supply booster pump (202) is connected to the centralized control system; A primary water supply pipe (207) is arranged along the longitudinal direction of the maintenance area to supply water to the multiple groups of pedestal groups; A plurality of secondary water supply pipes (208) are arranged transversely on one side of each pedestal group and are respectively connected to the primary water supply pipe (207); A plurality of water supply branch pipes (209) are connected one by one between a plurality of pedestals (4) and corresponding secondary water supply pipes (208).

5. The precast beam yard maintenance system according to claim 4, characterized in that: The steam supply pipeline includes a primary steam supply pipe (304) connected in sequence, a plurality of secondary steam supply pipes (305), a plurality of steam supply branch pipes (306), a steam generator (301) and a steam pressure pump (302) connected in sequence to the primary steam supply pipe (304); The first-level steam supply pipe (304) is arranged to extend longitudinally along the curing area, and the steam inlet end of the first-level steam supply pipe (304) is connected to the steam pressure pump (302), and the steam generator (301) is respectively connected to the water supply main pipe (201) and the steam pressure pump (302); A plurality of secondary steam supply pipes (305) are arranged transversely on one side of each pedestal group and are respectively connected to the primary steam supply pipe (304); A plurality of steam supply branch pipes (306) are connected one by one between a plurality of pedestals (4) and corresponding secondary steam supply pipes (305).

6. The precast beam yard maintenance system according to claim 5, characterized in that: The centralized control system includes a controller (501), and two transmission lines (502) and a plurality of conductors (503) respectively connected to the controller (501); The two transmission lines (502) are also connected to the steam generator (301) and the steam pressure pump (302) respectively; The other ends of the plurality of wires (503) are connected one by one to the corresponding plurality of pedestals (4).

7. The precast beam yard maintenance system according to claim 5, characterized in that: Each pedestal (4) comprises a pedestal body (401) arranged along the longitudinal extension, a dual-channel solenoid valve (405) arranged at the end of the pedestal body (401), an internal maintenance pipe (406) arranged along the longitudinal extension in the pedestal body (401), and a plurality of first telescopic nozzles (407) connected to the internal maintenance pipe (406); The dual-channel solenoid valve (405) is connected to the centralized control system, and the two inlets of the dual-channel solenoid valve (405) are also respectively connected to the corresponding water supply branch pipe (209) and steam supply branch pipe (306), and the outlet of the dual-channel solenoid valve (405) is connected to the internal maintenance pipe (406); The telescopic spray head is used to spray curing water and high-temperature steam toward the prefabricated beam supported on the pedestal body (401).

8. The precast beam yard maintenance system according to claim 7, characterized in that: The prefabricated beam yard maintenance system further comprises an in-box maintenance device (7) for being arranged in the box chamber of the prefabricated box beam (802) to spray and maintain the prefabricated box beam. The in-box maintenance device (7) comprises: A triangular support frame extending along the length direction of the prefabricated box beam (802) and arranged in the box chamber, a movable wheel set connected to the bottom end of the triangular support frame, an external curing pipe (703) supported longitudinally at the top end of the triangular support frame, and a plurality of second telescopic nozzles (704) connected to the external curing pipe (703); The outer curing tube (703) is connected to the inner curing tube (406).

9. The precast beam yard maintenance system according to claim 8, characterized in that: The pedestal (4) further comprises two installation chambers (415) arranged at two ends of the pedestal body (401), a maintenance quick interface (411) and a first interface switch (413) arranged in each installation chamber (415); The dual-channel solenoid valve (405) is arranged in one of the installation chambers (415); The two ends of the inner maintenance pipe (406) extend into the two installation chambers (415) respectively, and are connected to the maintenance quick interface (411) and the first interface switch (413) provided in the corresponding installation chambers (415); the maintenance quick interface (411) is used to connect the outer maintenance pipe (703).

10. The precast beam yard maintenance system according to claim 1, characterized in that: The maintenance shed (6) comprises two sets of telescopic side frames arranged at a relative interval, an arc-shaped arch connected between the two sets of telescopic side frames, a rolling wheel set connected to the bottom of each telescopic side frame, and a heat-insulating tarpaulin covering the two sets of telescopic side frames and the arc-shaped arch; The maintenance shed (6) is supported on the ground of the maintenance area by a rolling wheel group, and the maintenance shed (6) is integrally telescopic and adjustable along its length direction.

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