Component prefabrication construction method and production line

Abstract

The invention relates to a component prefabrication construction method and a production line, and belongs to the technical field of prefabricated components, and the component prefabrication construction method is used for prefabricating large components in winter. The component prefabrication construction method comprises the following steps that an opening in the top of the insulated house is opened, a belt conveyor is made to cross the wall of the insulated house outside the insulated house to convey concrete into the insulated house, and component pouring is conducted in the insulated house; after component pouring is completed, a top opening of the heat preservation house is closed; steam is introduced into the heat preservation room, so that the temperature in the heat preservation room is increased, and the poured components are maintained; and after component maintenance is completed, steam is stopped from being introduced into the heat preservation room, the temperature in the heat preservation room is reduced, a top opening of the heat preservation room is opened, and the first portal crane crosses the wall of the heat preservation room outside the heat preservation room to hoist the component from the top opening of the heat preservation room to leave the heat preservation room. According to the component prefabrication construction method, the components can be prefabricated in winter, the component prefabrication maintenance quality effect is good, and the prefabrication efficiency is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of precast components, and particularly relates to a construction method and production line for precasting components. Background Art

[0002] Precast components are building components prefabricated in a factory, such as beams, slabs, columns, etc. Standardized production can improve efficiency and quality. These components are assembled at the construction site, which can significantly shorten the construction period, reduce the on-site workload, and improve the overall performance of the building.

[0003] The main material of precast components is concrete. The strength growth of concrete depends on the hydration reaction of cement. Under suitable temperatures, the reaction is normal and sufficient, which can make the concrete structure dense and the strength increase. However, in winter, the low-temperature environment easily causes the water in the concrete to freeze, the hydration reaction of cement slows down or even stops, resulting in a significant extension of the concrete setting time, a lengthened production cycle, and the internal structure of the precast components is prone to become loose due to ice crystals, leading to a reduction in the strength and durability of the precast components, easy generation of cracks, and affecting the quality of the precast components.

[0004] In the prior art, precast components are usually precast in a steam curing and heat preservation shed in winter. Since a belt conveyor is usually used to convey the concrete required for precasting components and a gantry crane is used to hoist and transport the precast components during the precasting process of the components, and the space in the steam curing and heat preservation shed is limited, it is inconvenient for the belt conveyor and the gantry crane to enter the steam curing and heat preservation shed, and it is also inconvenient to take out the components with a large volume from the steam curing and heat preservation shed after precasting. In some constructions, a steam curing and heat preservation shed is built around the component after the component is poured, and the steam curing and heat preservation shed is disassembled after the component is precast. Although this method can realize the precasting of components in winter and can also ensure the precasting effect of the components, it undoubtedly increases the complexity of using the steam curing and heat preservation shed for component precasting, increases the construction difficulty and safety risk of precast components, and repeated disassembly and assembly will also reduce the service life of the steam curing and heat preservation shed. Summary of the Invention

[0005] Aiming at the deficiencies in the related art, the present invention provides a construction method and production line for precasting components. By setting a retractable ceiling on the top of the heat preservation room, the top opening of the heat preservation room is opened and closed by the telescopic movement of the ceiling, so that a belt conveyor, a first gantry crane, etc. can provide concrete into the heat preservation room or directly take out the components in the heat preservation room without entering the heat preservation room, which is not only convenient for precasting components in the heat preservation room, but also does not affect the curing of components in the heat preservation room.

[0006] The present invention provides a method for prefabricating components, which is used for prefabricating large components in a heat preservation room in winter; the heat preservation room includes a main body, a ceiling and a driving device; the interior of the main body is used to provide a place for component prefabrication and to accommodate components; the ceiling is located at the top of the main body, and the ceiling can be telescoped in a first direction to open or close the top opening of the heat preservation room; the driving device is used to drive the telescoping of the ceiling; and it is characterized in that the component prefabrication construction method includes the following steps:

[0007] Control the driving device to drive the ceiling to contract to open the top opening of the heat preservation room, and control the temperature control valve to close the steam nozzle; make the belt conveyor transport concrete into the heat preservation room across the wall of the heat preservation room outside the heat preservation room for component pouring in the heat preservation room;

[0008] After the component pouring is completed, control the driving device to drive the ceiling to extend to close the top opening of the heat preservation room; control the temperature control valve to open the steam nozzle, and make steam pass through the steam nozzle into the heat preservation room to increase the temperature in the heat preservation room; when the temperature in the heat preservation room reaches the first set value, control the temperature control valve to adjust the amount of steam introduced to keep the heat preservation room in a constant temperature state, and make the components be cured in a constant temperature environment;

[0009] After the component curing is completed, control the temperature control valve to close the steam nozzle, stop introducing steam into the heat preservation room, and reduce the temperature in the heat preservation room; when the temperature in the heat preservation room drops to the second set value, control the driving device to drive the ceiling to contract to open the top opening of the heat preservation room; make the first gantry crane hoist the component and leave the heat preservation room from the top opening of the heat preservation room.

[0010] By providing a telescopic ceiling at the top of the heat preservation room in this technical solution, the telescoping of the ceiling is used to open or close the top opening of the heat preservation room, so that the top opening of the heat preservation room can be opened or closed according to the construction needs, so that large equipment such as belt conveyors and first gantry cranes used in component construction can operate across the wall of the heat preservation room outside the heat preservation room. After the component pouring is completed, close the top opening of the heat preservation room, so that the poured components are cured in the closed heat preservation room. After the component curing is completed, open the top opening of the heat preservation room again to take out the components from the heat preservation room, which is convenient for prefabricating components in the heat preservation room, and the construction method is simple and efficient.

[0011] In some embodiments, after the component curing is completed, during the process of the temperature reduction of the heat preservation room, when the temperature difference between the core of the component and the surface layer of the component and the temperature difference between the surface layer of the component and the external environment of the heat preservation room do not exceed 15°C, the top opening of the heat preservation room is opened.

[0012] By taking out the components when the temperature difference between the core of the component and the surface layer of the component and the temperature difference between the surface layer of the component and the external environment of the heat preservation room do not exceed 15°C in this technical solution, on the one hand, it avoids the excessive temperature difference of the component itself and reduces the quality of the component, and on the other hand, it avoids the adverse consequences caused by the sudden pre-cooling of the component.

[0013] In some of these embodiments, a temperature sensor is installed in the heat preservation room. The temperature sensor is connected to a control unit, and the control unit is also connected to a temperature control valve. The control unit is configured to: when maintaining a constant temperature state in the heat preservation room, if the detected value of the temperature sensor exceeds a first set value, control the temperature control valve to reduce the flow rate of the steam nozzle; if the detected value of the temperature sensor is lower than a third set value, control the temperature control valve to increase the flow rate of the steam nozzle.

[0014] In some of these embodiments, the control unit is further configured to: when the temperature in the heat preservation room changes, if the temperature change rate in the heat preservation room is greater than a first threshold value, control the temperature control valve to adjust the flow rate of the steam nozzle to control the temperature change rate in the heat preservation room to be no greater than the first threshold value.

[0015] In some of these embodiments, the ceiling includes trusses and a membrane cloth. A plurality of trusses are configured, and the plurality of trusses are arranged along a first direction. The two ends of the truss in the length direction are arranged along a second direction, and the second direction and the first direction are perpendicularly arranged in the horizontal plane. A telescopic member is provided between two adjacent trusses, and the telescopic member can be telescoped along the first direction. The membrane cloth is connected to the truss and is located at the top of the truss. The driving device is connected to the truss, and the driving device is used to drive the truss to reciprocate along the first direction.

[0016] In some of these embodiments, the driving device includes a guide rail, a walking wheel, and a motor. The guide rail is provided on the top of the main body and extends along the first direction. The walking wheel is provided at the bottom of the truss, and the walking wheel is slidably arranged on the guide rail. The motor is installed on one of the trusses or two adjacent trusses for driving the walking wheel to move.

[0017] In some of these embodiments, the front-rear direction of the main body is arranged along the first direction. The guide rail extends out of the heat preservation room towards the rear of the main body so that the truss can move along the guide rail to the outside of the heat preservation room, thereby completely opening the top opening of the heat preservation room.

[0018] In this technical solution, by making the guide rail extend out of the heat preservation room towards the rear of the main body, the truss can move along the guide rail to the outside of the heat preservation room, so that the top opening of the heat preservation room can be completely opened, which is convenient for the belt conveyor to transport concrete into the heat preservation room across the wall of the heat preservation room and for the first gantry crane to take out components from the heat preservation room.

[0019] In addition, the present invention also provides a component prefabrication construction production line, including the heat preservation room and the first gantry crane in the above-mentioned component prefabrication construction method;

[0020] A plurality of heat preservation rooms are provided, and the plurality of heat preservation rooms are independently arranged and arranged in a straight line. One component is prefabricated in each heat preservation room at a time. After the component in the current heat preservation room is poured, the component is poured in the next heat preservation room in the arrangement order of the heat preservation rooms.

[0021] The first gantry is arranged above the heat preservation room, and the first gantry can reciprocate linearly along the arrangement direction of the heat preservation room to hoist the prefabricated components in the heat preservation room.

[0022] In this technical solution, by setting multiple heat preservation rooms to be independent of each other, after a single component is poured, it can be cured without waiting for other components to be poured together. This not only reduces the occupied space of a single heat preservation room, but also increases the batch production efficiency of components; by enabling the first gantry to reciprocate linearly along the arrangement direction of the heat preservation rooms, the first gantry can hoist the prefabricated components in any heat preservation room, which not only facilitates the transportation of components, but also increases the transportation efficiency of components, and further increases the construction efficiency of components.

[0023] In some embodiments, it further includes a second gantry. The second gantry is located above the heat preservation room. The second gantry is connected with a vibrating row. The second gantry reciprocates linearly along the arrangement direction of the heat preservation rooms and the vibrating row contracts in the up and down direction to drive the vibrating row to vibrate the concrete in the heat preservation room in all directions.

[0024] In some embodiments, it further includes a transport trolley. The transport trolley can reciprocate linearly between a first position and a second position. The first position is correspondingly set with a certain position on the movement track of the first gantry, and the second position is correspondingly set with a storage device for components.

[0025] Based on the above technical solution, in the component prefabrication construction method and production line of the embodiments of the present invention, by setting a retractable ceiling on the top of the heat preservation room and using the retraction and extension of the ceiling to open or close the top opening of the heat preservation room, the top opening of the heat preservation room can be opened or closed, so that large equipment such as belt conveyors and the first gantry used in component construction can operate outside the heat preservation room across the wall of the heat preservation room. After the components are poured, the top opening of the heat preservation room is closed again, so that the poured components are cured quickly in situ in the closed heat preservation room to ensure the curing effect of the components; after the components are cured, the top opening of the heat preservation room is opened again to take out the components from the heat preservation room, which not only facilitates the prefabrication construction of large components in the heat preservation room, but also the construction and curing of each component are independent and do not interfere with each other, and the operation method is simple and efficient, and the construction quality is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present invention, and constitute a part of this application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0027] Figure 1 is a flowchart of an embodiment of the component prefabrication construction method of the present invention;

[0028] Figure 2 Structural schematic diagram of an embodiment of the prefabricated construction production line for components of the present invention;

[0029] Figure 3 Structural schematic diagram of the heat preservation room (traveling wheels and motors not shown) in an embodiment of the prefabricated construction method for components of the present invention;

[0030] Figure 4 is Figure 3 Partial enlarged view at A in

[0031] Figure 5 is Figure 3 Partial enlarged view at B in

[0032] Figure 6 Structural schematic diagram of another angle of the heat preservation room (traveling wheels and motors not shown) in an embodiment of the prefabricated construction method for components of the present invention;

[0033] Figure 7 is Figure 6 Partial enlarged view at C in

[0034] Figure 8 Structural schematic diagram when the support wheel is installed on the mounting frame in an embodiment of the prefabricated construction method for components of the present invention;

[0035] Figure 9 Structural schematic diagram when the traveling wheel is installed on the mounting frame (motor not shown) in an embodiment of the prefabricated construction method for components of the present invention;

[0036] Figure 10 Structural schematic diagram of the second wall in an embodiment of the prefabricated construction method for components of the present invention;

[0037] Figure 11 Structural schematic diagram when the vibrating row is installed on the second gantry crane in an embodiment of the prefabricated construction method for components of the present invention.

[0038] In the figure:

[0039] 100, heat preservation room; 200, belt conveyor; 300, second gantry crane; 400, transport trolley; 500, first gantry crane; 600, storage device; 700, transport ship;

[0040] 110, main body; 120, truss; 130, support frame; 140, guide rail; 150, guide pipe; 160, support wheel; 170, telescopic member; 180, support rod; 190, traveling wheel;

[0041] 111, column; 112, moisture-proof film; 113, heat-insulating cotton; 114, steel plate; 115, aluminum-magnesium-manganese plated steel plate;

[0042] 116. Fan

[0043] 121. First truss; 122. Second truss

[0044] 161. Mounting bracket

[0045] 171. First connecting piece; 172. Second connecting piece; 173. Third connecting piece; 174. Fourth connecting piece

[0046] 310. Vibrating row; 311. Traveling trolley; 312. Telescopic frame assembly; 313. Vibrating member; 314. Control cabinet Detailed implementation manners

[0047] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0048] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0049] The terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "third" may explicitly or implicitly include one or more of such features.

[0050] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0051] As shown in the attached Figure 1 and Figure 2As shown in the figure, in a schematic embodiment of the prefabrication construction method of the component of the present invention, the prefabrication construction method of the component is used to prefabricate large components in the heat preservation room 100 in winter; the heat preservation room 100 includes a main body 110, a ceiling and a driving device; the inside of the main body 110 is used to provide a place for prefabricating components and for accommodating components; the ceiling is located at the top of the main body 110, and the ceiling can be telescoped in the first direction to open or close the top opening of the heat preservation room 100; the driving device is used to drive the ceiling to telescope; the prefabrication construction method of the component includes the following steps:

[0052] Control the driving device to drive the ceiling to contract to open the top opening of the heat preservation room 100, and control the temperature control valve to close the steam nozzle to avoid wasting resources; make the belt conveyor 200 transport concrete into the heat preservation room 100 across the wall of the heat preservation room 100 outside the heat preservation room 100, and pour the components in the heat preservation room 100;

[0053] After the component pouring is completed, control the driving device to drive the ceiling to extend to close the top opening of the heat preservation room 100, so that the inside of the heat preservation room 100 is in a closed environment; control the temperature control valve to open the steam nozzle, and make the steam pass through the steam nozzle into the heat preservation room 100 to increase the temperature in the heat preservation room 100; when the temperature in the heat preservation room 100 reaches the first set value, control the temperature control valve to adjust the steam input amount, so that the inside of the heat preservation room 100 is in a constant temperature state, and the components are cured in a constant temperature environment;

[0054] After the component curing is completed, control the temperature control valve to close the steam nozzle, stop introducing steam into the heat preservation room 100, and reduce the temperature in the heat preservation room 100; when the temperature in the heat preservation room 100 drops to the second set value, control the driving device to drive the ceiling to contract, so that the ceiling opens the top opening of the heat preservation room 100; make the first gantry crane 500 hoist the component and leave the heat preservation room 100 from the top opening of the heat preservation room 100.

[0055] By setting a telescopic ceiling at the top of the heat preservation room 100 in the above prefabrication construction method of the component, using the telescoping of the ceiling to open or close the top opening of the heat preservation room 100, the top opening of the heat preservation room 100 can be opened or closed, so that the belt conveyor 200 can transport concrete into the heat preservation room 100 across the wall of the heat preservation room 100 outside the heat preservation room 100, and the first gantry crane 500 can take out the components in the heat preservation room 100 across the wall of the heat preservation room 100 outside the heat preservation room 100. This not only enables the components to be prefabricated in the heat preservation room 100, but also reduces the difficulty of equipment such as the belt conveyor 200 and the first gantry crane 500 entering the heat preservation room 100, enabling large equipment such as the belt conveyor 200 and the first gantry crane 500 to carry out component prefabrication construction without entering the heat preservation room 100. The construction method is simple and does not affect the curing effect of the heat preservation room 100 on the components, resulting in good prefabrication effect and high prefabrication efficiency of the components.

[0056] It should be noted that the function of the belt conveyor 200 is to convey the concrete in the concrete mixer truck to the component pouring position, and the function of the first gantry crane 500 is to lift the component out of the heat preservation house 100 and carry out hoisting and transportation of the component.

[0057] The steam spray pipe is laid in the heat preservation house 100, and the steam spray pipe is used to supply steam into the heat preservation house 100; a temperature control valve is arranged on the steam spray pipe, and the temperature control valve is used to adjust the flow rate of the steam spray pipe; a temperature sensor is installed in the heat preservation house 100, the temperature sensor is connected to a control unit, and the control unit is connected to the temperature control valve; the control unit can control the temperature control valve according to the detection information of the temperature sensor, so as to control the flow rate of the steam spray pipe.

[0058] The control unit is configured to: when maintaining a constant temperature state in the heat preservation house 100, if the detection value of the temperature sensor exceeds the first set value, control the temperature control valve to reduce the flow rate of the steam spray pipe to avoid too high a temperature in the heat preservation house 100; if the detection value of the temperature sensor is lower than the third set value, control the temperature control valve to increase the flow rate of the steam spray pipe to avoid too low a temperature in the heat preservation house 100.

[0059] The control unit is further configured to: when the temperature in the heat preservation house 100 changes, if the change speed in the heat preservation house 100 is greater than the first threshold value, control the temperature control valve to adjust the flow rate of the steam spray pipe, and control the change speed of the temperature in the heat preservation house 100 not to be greater than the first threshold value.

[0060] Specifically, when the temperature in the heat preservation house 100 rises, if the change speed of the temperature in the heat preservation house 100 is greater than the first threshold value, control the temperature control valve to reduce the flow rate of the steam spray pipe, reduce the steam inlet rate, and control the temperature rise speed in the heat preservation house 100 not to be greater than the first threshold value.

[0061] It should be noted that when the steam supply in the heat preservation house 100 stops after the component curing is completed, if the temperature drop speed in the heat preservation house 100 is greater than the first threshold value, the control unit controls the temperature control valve to open the steam spray pipe and introduce a small amount of steam into the heat preservation house 100 to prevent the temperature drop speed in the heat preservation house 100 from being too fast.

[0062] The control unit is configured to: when the temperature in the heat preservation house 100 drops, if the change speed in the heat preservation house 100 is greater than the first threshold value, control the temperature control valve to increase the flow rate of the steam spray pipe, increase the steam inlet rate, and control the temperature drop speed in the heat preservation house 100 not to be greater than the first threshold value.

[0063] Since the top opening of the heat preservation room 100 is open during the pouring of the component, and steam is not introduced into the heat preservation room 100 at this time. Therefore, after the pouring of the component is completed, although the top opening of the heat preservation room 100 is closed, the temperature in the heat preservation room 100 is still relatively low. By introducing steam into the heat preservation room 100, the temperature and humidity in the heat preservation room 100 are increased to provide a suitable environment for the poured component and cure the component, thereby improving the prefabrication quality of the component.

[0064] After the pouring of the component is completed, it is first left to stand still in the heat preservation room 100 for a period of time, and then the temperature in the heat preservation room 100 is increased to prevent cracks and looseness on the surface of the component due to premature temperature rise.

[0065] When the temperature in the heat preservation room 100 rises, if the temperature rise rate in the heat preservation room 100 is greater than the first threshold value, the steam inlet rate is reduced to control the temperature drop rate in the heat preservation room 100 not to be greater than the first threshold value, so as to prevent cracks from occurring due to too large a temperature difference between the surface and the inside of the component caused by too fast a temperature rise rate in the heat preservation room 100.

[0066] The temperature in the heat preservation room 100 is not the higher the better, and the temperature in the heat preservation room 100 does not continue to rise. When the temperature in the heat preservation room 100 reaches the first set value, the control unit adjusts the steam inlet amount through the temperature control valve to keep the heat preservation room 100 in a constant temperature state, so that the component is subjected to steam curing in a constant temperature environment, thereby accelerating the hydration reaction rate of the concrete, enabling the concrete to reach a higher strength in a shorter time, improving production efficiency, and shortening the production cycle.

[0067] When maintaining a constant temperature state in the heat preservation room 100, if the detected value of the temperature sensor exceeds the first set value, the control unit controls the temperature control valve to reduce the flow rate of the steam spray pipe; if the detected value of the temperature sensor is lower than the third set value, the control unit controls the temperature control valve to increase the flow rate of the steam spray pipe. It should be noted that in the present invention, the constant temperature state does not mean that the temperature always remains unchanged, but means that the temperature is within the temperature range jointly defined by the first set value and the third set value.

[0068] In some embodiments, the curing temperature of the component generally should not be greater than 50 °C, the relative humidity should be maintained above 95%, the constant temperature curing time is generally 8 - 10 h, the surface temperature of the component should not exceed 45 °C, and the core concrete temperature of the component should not exceed 50 °C.

[0069] After the component is cured at a constant temperature, it is necessary to take out the component from the heat preservation room 100. Since the temperature in the heat preservation room 100 is relatively high while the external environmental temperature outside the heat preservation room 100 is relatively low, sudden precooling of the component is likely to cause adverse consequences. Therefore, in the present invention, after the component curing is completed, the control unit controls the temperature control valve to stop or greatly reduce the steam input into the heat preservation room 100, so that the temperature in the heat preservation room 100 gradually decreases to a second set value close to the external environmental temperature, avoiding sudden changes in the temperature of the environment where the component is located and affecting the quality of the component. When the temperature in the heat preservation room 100 decreases to the second set value, the top opening of the heat preservation room 100 is opened, and the component is taken out from the heat preservation room 100.

[0070] In some embodiments, during the component curing process, the temperature difference between the core and the surface of the component and the temperature difference between the surface of the component and the environment in the heat preservation room 100 do not exceed 15 °C before taking out the component from the heat preservation room 100. On the one hand, it avoids excessive temperature difference within the component itself and reduces the quality of the component, and on the other hand, it avoids excessive temperature difference between the component and the environment and produces adverse consequences.

[0071] It should be noted that during the process of component curing completion and temperature reduction in the heat preservation room 100, the temperature difference between the core and the surface of the component and the temperature difference between the surface of the component and the environment in the heat preservation room 100 not exceeding 15 °C are the opening conditions for the top opening of the heat preservation room 100.

[0072] When stopping the steam input into the heat preservation room 100 to reduce the internal temperature of the heat preservation room 100, if the temperature reduction rate in the heat preservation room 100 is greater than the first threshold, steam is input into the heat preservation room 100 to control the temperature reduction rate in the heat preservation room 100 not to be greater than the first threshold, so as to prevent the temperature reduction rate in the heat preservation room 100 from being too fast and causing excessive temperature difference between the surface and the inside of the component and resulting in cracks.

[0073] In some embodiments, the first threshold is 10 °C / h.

[0074] In the present invention, the ceiling is designed as a retractable structure to facilitate opening or closing the top opening of the heat preservation room 100; the top opening of the heat preservation room 100 is opened by the contraction of the ceiling, and the top opening of the heat preservation room 100 is closed by the elongation of the ceiling.

[0075] Specifically, as Figure 3As shown in the figure, the heat preservation house 100 includes a main body 110, a ceiling and a driving device; an accommodation cavity with an opening at the top is defined inside the main body 110, and the accommodation cavity is used to provide a place for prefabricating components and to accommodate components; one end of the steam nozzle is arranged inside the accommodation cavity for supplying steam into the accommodation cavity, and the end of the steam nozzle far away from the accommodation cavity is connected to a steam device, and the steam device is used to provide steam into the accommodation cavity; the ceiling is located at the top of the main body 110, and the ceiling can be telescoped in the first direction to open or close the accommodation cavity; the driving device is used to drive the telescoping of the ceiling. When the top opening of the heat preservation house 100 is opened, the driving device drives the ceiling to contract; when the top opening of the heat preservation house 100 is closed, the driving device drives the ceiling to extend. It should be noted that it can be considered that the accommodation cavity is the internal space of the heat preservation house 100, and the top opening of the accommodation cavity is the top opening of the heat preservation house 100.

[0076] In some embodiments, the steam device is a boiler, and the boiler is located outside the accommodation cavity.

[0077] In some embodiments, as Figure 6 shown, in order to increase the cooling speed inside the heat preservation house 100, fans 116 are installed on the walls of the heat preservation house 100, and by rotating the fans 116, the cooling speed inside the heat preservation house 100 is assisted to be adjusted.

[0078] It should be noted that in this embodiment, the front-rear direction of the main body 110 is arranged along the first direction, and the left-right direction of the main body 110 is arranged along the second direction.

[0079] As Figure 3 and Figure 6 shown, the ceiling includes a truss 120 and a membrane cloth; a plurality of trusses 120 are arranged, and the plurality of trusses 120 are arranged along the first direction; the two ends of the truss 120 in the length direction are arranged along the second direction, and the second direction and the first direction are perpendicular to each other in the horizontal plane; the telescopic member 170 can be telescoped in the first direction, and the two ends of the telescopic member 170 are correspondingly connected to adjacent two trusses 120; the membrane cloth is connected to the truss 120 and is located on the top of the truss 120 for closing the top opening of the accommodation cavity.

[0080] When the ceiling contracts, the distance between adjacent trusses 120 decreases; when the ceiling extends, the distance between adjacent trusses 120 increases; when the ceiling contracts, the length of the telescopic member 170 in the first direction decreases; when the ceiling extends, the length of the telescopic member 170 in the first direction increases; when the ceiling contracts, the membrane cloth is in a wrinkled and curled state; when the ceiling extends, the membrane cloth is in a stretched state, and the top opening of the accommodation cavity is covered by the membrane cloth and closed.

[0081] In some embodiments, the inner side of the truss 120 faces the accommodation cavity, and the outer side of the truss 120 faces away from the accommodation cavity. The membrane is disposed on the outer side of the truss 120. When the membrane closes the top opening of the accommodation cavity, the truss 120 is covered by the membrane and located inside the accommodation cavity. On the one hand, the truss 120 can support the membrane to ensure the unfolding effect of the membrane. On the other hand, the membrane can protect the truss 120 from water, dust, etc.

[0082] In some embodiments, the truss 120 has an arc structure. The truss 120 is made by welding 50*2.5 hot-dip galvanized square pipes, which can not only ensure the stability and bearing capacity of the truss 120, but also reduce the weight of the truss 120.

[0083] In other embodiments, the membrane has the advantages of heat insulation, waterproofing, anti-aging, smoothness, flexibility, etc. The membrane is fixed on the telescopic frame by M4*25 self-tapping screws, and a composite waterproof gasket is added to prevent the leakage of steam and the rusting of the truss 120.

[0084] As Figure 7 shown, the telescopic member 170 includes a first connecting member 171, a second connecting member 172, a third connecting member 173, and a fourth connecting member 174. The first connecting member 171 and the second connecting member 172 are rotatably connected to the same truss 120, and the rotational connection between the first connecting member 171 and the truss 120 is located above the rotational connection between the second connecting member 172 and the truss 120; the middle part of the first connecting member 171 is rotatably connected to the middle part of the second connecting member 172, so that the first connecting member 171 and the second connecting member 172 jointly form an X-shaped structure; the third connecting member 173 and the fourth connecting member 174 are rotatably connected to another truss 120, and the rotational connection between the third connecting member 173 and the truss 120 is located above the rotational connection between the fourth connecting member 174 and the truss 120; the middle part of the third connecting member 173 is rotatably connected to the middle part of the fourth connecting member 174, so that the third connecting member 173 and the fourth connecting member 174 jointly form an X-shaped structure. Among them, one end of the first connecting member 171 away from the truss 120 is rotatably connected to one end of the third connecting member 173 away from the truss 120; one end of the second connecting member 172 away from the truss 120 is rotatably connected to one end of the fourth connecting member 174 away from the truss 120.

[0085] For the convenience of description, the two trusses 120 located at the ends in the arrangement direction of the trusses 120 are respectively called the first truss 121 and the second truss 122. Among them, the first truss 121 is located in front of the second truss 122 along the first direction, the first truss 121 is correspondingly arranged in front of the main body 110, and the second truss 122 is correspondingly arranged behind the main body 110.

[0086] The driving device is located at the top of the main body 110 and is used to drive the truss 120 to move linearly back and forth in the first direction, so as to realize the extension and contraction of the ceiling; two driving devices are provided, and the two driving devices are arranged corresponding to the two ends of the truss 120 in the length direction, and the two driving devices work synchronously to increase the stability and reliability of the truss 120 during movement and prevent the truss 120 from getting stuck during movement.

[0087] As Figure 4 , Figure 5 , Figure 8 and Figure 9 shown, the driving device includes a guide rail 140, a walking wheel 190 and a motor. The guide rail 140 is arranged on the top of the main body 110 and extends along the first direction; the walking wheel 190 is arranged at the bottom of the truss 120, and the walking wheel 190 is slidably arranged on the guide rail 140 to use the guide rail 140 to guide the movement of the walking wheel 190 and avoid deviation of the direction of the walking wheel 190 during movement; the motor is installed on the truss 120 and is used to drive the walking wheel 190 to walk along the guide rail 140; the motor drives the walking wheel 190 to walk, so that the walking wheel 190 drives the truss 120 to move linearly back and forth in the first direction to open or close the top opening of the accommodating cavity.

[0088] In some embodiments, the motor and the walking wheel 190 are installed on the first truss 121. The motor drives the truss 120 to move towards the second truss 122 to contract the ceiling; the motor drives the truss 120 to move away from the second truss 122 to extend the ceiling.

[0089] As Figure 4 and Figure 9 shown, the truss 120 is installed with a support frame 130. The support frame 130 is located above the guide rail 140. The walking wheel 190 is rotatably connected to the support frame 130, and the motor is installed on the support frame 130. The rotation axis of the motor and the rotation axis of the walking wheel 190 are arranged along the second direction. The motor drives the walking wheel 190 to walk along the guide rail 140, so that the walking wheel 190 drives the truss 120 to move.

[0090] In some embodiments, the support frame 130 is arranged along the first direction. One end of the support frame 130 is connected to the first truss 121, and the other end of the support frame 130 is connected to the truss 120 adjacent to the first truss 121. It should be noted that since the support frame 130 is not telescopic, the distance between the first truss 121 and the truss 120 adjacent to it is unchanged.

[0091] As Figure 5As shown, the guide rail 140 extends along the first direction from the wall of the accommodation cavity, and the part of the guide rail 140 extending from the wall of the accommodation cavity is suspended outside the accommodation cavity, so that the traveling wheels 190 can drive the truss 120 to move outside the accommodation cavity, so that the ceiling can completely open the top opening of the accommodation cavity, ensuring that the top space of the accommodation cavity is completely open, and further maximizing the use space of the steam curing room.

[0092] By extending the guide rail 140 outside the accommodation cavity towards the rear of the main body 110, the truss 120 can move along the guide rail 140 outside the accommodation cavity, so that the top opening of the accommodation cavity can be completely opened, and it is convenient to precast components or take out components from the heat preservation room 100.

[0093] In some embodiments, as Figure 9 shown, two traveling wheels 190 are provided. The two traveling wheels 190 are located between the first truss 121 and the truss 120 adjacent to the first truss 121 along the first direction to ensure the stability of the truss 120 connected to the traveling wheels 190 when the traveling wheels 190 move and prevent the truss 120 from tipping over.

[0094] As Figure 4 and Figure 8 shown, a support wheel 160 is further provided at the bottom of the truss 120. The support wheel 160 is slidably arranged on the guide rail 140. The support wheel 160 rolls synchronously with the traveling wheels 190. The support wheel 160 is used to increase the stability and reliability of the movement of the truss 120.

[0095] It should be noted that since a driving device is arranged on one side of the truss 120, only one truss 120 in a row of trusses 120 is installed with traveling wheels 190. In order to facilitate the movement of the truss 120, support wheels 160 are respectively installed at the bottom of each truss 120 to drive the truss 120 to move by using the support wheels 160.

[0096] In some embodiments, an installation frame 161 is provided at the bottom of the truss 120, and the support wheel 160 is rotatably connected to the installation frame 161.

[0097] In some embodiments, the installation frame 161 has an inverted U-shaped structure, and the support wheel 160 is arranged inside the installation frame 161; the guide rail 140 is an I-beam, and the upper end of the guide rail 140 is located inside the installation frame 161 to prevent the installation frame 161 from separating from the guide rail 140, thus ensuring the reliability of the movement of the support wheel 160.

[0098] A guide tube 150 is provided on the guide rail 140. The guide tube 150 protrudes from the top surface of the guide rail 140 and extends along the first direction. The support wheel 160 is provided with a recessed portion, which is located on the outer periphery of the support wheel 160 and extends along the circumferential direction of the support wheel 160. The recessed portion is adapted to the guide tube 150 to limit the axial movement of the support wheel 160, thereby increasing the stability and reliability of the movement of the truss 120.

[0099] In some embodiments, the motor is a waterproof and explosion-proof motor, and the parameters of the motor are a rotation speed of 2840 r / min, a rated power of 0.8 KW, and a rated current of 1.8 A.

[0100] In some embodiments, a limiting portion is provided at one end of the guide rail 140 extending out of the cavity wall of the accommodation cavity to prevent the truss 120 from continuing to move, and the traveling wheel 190 drives the truss 120 to move in a direction away from or close to the limiting portion.

[0101] As Figure 5 and Figure 7 shown, a support rod 180 is connected to one end of the guide rail 140 extending out of the cavity wall of the accommodation cavity. The end of the support rod 180 away from the guide rail 140 is inclined downward and connected to the side of the main body 110 facing away from the accommodation cavity to increase the firmness of the setting of the guide rail 140.

[0102] In some embodiments, as Figure 3 shown, the ceiling is provided with two, and the two ceilings are arranged along the second direction. The top opening of the accommodation cavity is closed by the two ceilings to reduce the size of the ceiling, thereby reducing the length size of the truss 120, which is not only convenient for manufacturing and installing the truss 120, but also convenient for the motor to drive the truss 120 to move.

[0103] The working principle of the telescopic ceiling is as follows: When the top opening of the accommodation cavity needs to be opened, the motor drives the traveling wheels 190 to move along the guide rail 140 towards the rear of the main body 110. The traveling wheels 190 drive the first truss 121 and the truss 120 adjacent to the first truss 121 to move. The first truss 121 and the truss 120 adjacent to the first truss 121 drive the other trusses 120 to move through the telescopic member 170. Eventually, the distance between adjacent trusses 120 in a row of trusses 120 decreases, and the membrane moves synchronously as the trusses 120 move. The membrane is folded and compressed, thereby opening the top opening of the accommodation cavity; When the top opening of the accommodation cavity needs to be closed, the motor drives the traveling wheels 190 to move along the guide rail 140 towards the front of the main body 110. The traveling wheels 190 drive the first truss 121 and the truss 120 adjacent to the first truss 121 to move. The first truss 121 and the truss 120 adjacent to the first truss 121 drive the other trusses 120 to move through the telescopic member 170. Eventually, the distance between adjacent trusses 120 in a row of trusses 120 increases, and the membrane moves synchronously as the trusses 120 move. The membrane is stretched, thereby closing the top opening of the accommodation cavity.

[0104] The wall of the heat preservation house 100 is provided with an inlet and outlet communicating with the inside of the heat preservation house 100, and the inlet and outlet are used for construction workers to enter and exit the heat preservation house 100. It should be noted that larger components such as the formwork required for prefabricating components enter the heat preservation house 100 through the top opening of the heat preservation house 100.

[0105] In some embodiments, the heat preservation house 100 is rotatably connected with a door body, and the door body is arranged at the inlet and outlet for opening or closing the inlet and outlet. When the components are being cured, the door body closes the inlet and outlet to seal the heat preservation house 100 and ensure the curing effect of the components inside the heat preservation house 100.

[0106] The main body 110 includes a first wall and a second wall. The first wall and the second wall respectively extend in the horizontal plane to form a closed structure to define an accommodation cavity; The first wall and the second wall are arranged vertically, and the second wall is located at the top of the first wall; The first wall is a concrete wall for fixing the second wall; The second wall is used for heat preservation of the accommodation cavity, and the height of the second wall is greater than the height of the first wall.

[0107] As Figure 10 shown, the second wall includes a steel plate 114, a heat preservation cotton 113, and a moisture-proof membrane 112. The steel plate 114, the heat preservation cotton 113, and the moisture-proof membrane 112 are arranged in sequence from the outside of the accommodation cavity to the inside of the accommodation cavity to ensure the heat preservation effect and durability of the second wall.

[0108] In some embodiments, the main body 110 is provided with columns 111. A plurality of columns 111 are arranged in the horizontal plane along the extending direction of the first wall. The lower ends of the columns 111 are arranged in the first wall, and the upper ends of the columns 111 are arranged in the second wall to increase the structural strength of the main body 110.

[0109] On the side of the column 111 facing the inside of the accommodation cavity, a moisture-proof film 112, a heat-insulating cotton 113 and a steel plate 114 are successively arranged from the column 111 towards the inside of the accommodation cavity. On the side of the column 111 facing away from the accommodation cavity, a moisture-proof film 112, a heat-insulating cotton 113 and an aluminum-magnesium-manganese plated board 115 are successively arranged from the column 111 in the direction away from the accommodation cavity.

[0110] Next, the prefabrication construction method of the above components will be introduced in detail in combination with the specific structure of the heat preservation house 100.

[0111] The prefabrication construction method of the above components includes the following steps:

[0112] The motor drives the traveling wheels 190 to travel along the guide rail 140 towards the rear of the main body 110. The traveling wheels 190 drive the truss 120 to move towards the rear of the main body 110, so that the ceiling shrinks, thereby opening the top opening of the heat preservation house 100. The belt conveyor 200 conveys concrete into the heat preservation house 100 across the wall of the heat preservation house 100 outside the heat preservation house 100. The second gantry crane 300 drives the vibrating row 310 to realize three-dimensional automatic vibration in the up-down, left-right, front-back directions along the arrangement direction of the heat preservation house 100.

[0113] After the component is poured, the motor drives the traveling wheels 190 to travel along the guide rail 140 towards the front of the main body 110. The traveling wheels 190 drive the truss 120 to move towards the front of the main body 110, so that the ceiling extends, thereby closing the top opening of the heat preservation house 100. After the poured component is static for a period of time, the control unit controls the temperature control valve to open the steam nozzle and introduce steam into the heat preservation house 100 to increase the temperature in the heat preservation house 100. The temperature in the heat preservation house 100 rises at a heating rate not greater than 10 °C / h. When the detected value of the temperature sensor reaches 50 °C, the control unit automatically adjusts the steam introduction amount through the temperature control valve to prevent the temperature in the heat preservation house 100 from rising continuously and keep the temperature in the heat preservation house 100 in a constant temperature state.

[0114] The component is cured in the heat preservation chamber 100 in a constant temperature state. After the curing is completed, the control unit closes the steam nozzle through the temperature control valve, and automatically adjusts to introduce steam into the heat preservation chamber 100 or assist in turning on the fan 16, so that the temperature in the heat preservation chamber 100 gradually decreases. When the temperature difference between the core of the component and the surface of the component and between the surface of the component and the external environment of the heat preservation chamber 100 does not exceed 15°C, the motor drives the walking wheels 190 to walk backward along the guide rail 140 towards the rear of the main body 110, and the walking wheels 190 drive the truss 120 to move backward towards the main body 110, so as to contract the ceiling, thereby opening the top opening of the heat preservation chamber 100; the first gantry crane 500 hoists the component from the top opening across the wall of the heat preservation chamber 100 outside the heat preservation chamber 100.

[0115] It should be noted that the component curing process includes a static stop stage, a heating stage, a constant temperature stage, and a cooling stage, and the above stages are carried out in sequence according to the time sequence; during the static stop period of the component, the temperature in the heat preservation chamber 100 should be kept not lower than 5°C, and the static stop time is generally 3-5 hours to prevent cracks and looseness on the surface of the component. Then start heating, and the heating speed should not be too fast to avoid affecting the quality of the component due to excessive temperature difference between the surface and the inside of the component. The heating speed should not be greater than 10°C / h. During the constant temperature curing stage, the constant temperature curing temperature shall not be greater than 50°C, the relative humidity shall be kept at 95%, the constant temperature curing time is generally 8-10h, the surface temperature of the component shall not exceed 45°C, the concrete temperature of the core of the component shall not exceed 50°C, and the cooling speed shall not be greater than 10°C / h.

[0116] It should also be noted that the judgment of the completion of component curing belongs to the prior art in this field and will not be elaborated here.

[0117] In the above-mentioned component prefabrication construction method, by setting the ceiling to be retractable, the opening and closing of the top opening of the accommodation cavity are realized by the retraction of the ceiling, so that large equipment such as the belt conveyor 200 and the first gantry crane 500 used in component construction can cross the wall of the heat preservation chamber 100 outside the heat preservation chamber 100 for component pouring; after the component pouring is completed, the top opening of the heat preservation chamber 100 is closed again, the poured component is cured, and after the component curing is completed, the top opening of the heat preservation chamber 100 is opened again, and the component is taken out from the top opening of the heat preservation chamber 100; it not only ensures the independent and efficient curing quality of each component in the heat preservation chamber 100, but also the curing process is simple and convenient.

[0118] Based on the above component prefabrication construction method, the present invention also provides a component prefabrication construction production line, which includes the heat preservation room 100 and the first gantry crane 500 in the above component prefabrication construction method; a plurality of heat preservation rooms 100 are provided, and the plurality of heat preservation rooms 100 are independently arranged and arranged in a straight line; one component is prefabricated in each heat preservation room 100 at a time. After the component in the current heat preservation room 100 is poured, the component is poured in the next heat preservation room 100 along the arrangement order of the heat preservation rooms 100. The second gantry crane 300 can reciprocate linearly along the arrangement direction of the heat preservation rooms 100 to carry out automatic vibration; the first gantry crane 500 is arranged above the heat preservation room 100, and the first gantry crane 500 can reciprocate linearly along the arrangement direction of the heat preservation rooms 100 to lift the prefabricated components in the heat preservation room 100.

[0119] In the above component prefabrication construction production line, by arranging a plurality of heat preservation rooms 100 independently, after a single component is poured, it can be independently cured without being affected by the construction of other components. This not only improves the utilization efficiency of a single heat preservation room 100, but also saves steam resources. By arranging that the second gantry crane 300 can reciprocate linearly along the arrangement direction of the heat preservation rooms 100 to carry out automatic vibration, the concrete vibration efficiency and vibration quality are greatly improved. By arranging that the first gantry crane 500 can reciprocate linearly along the arrangement direction of the heat preservation rooms 100, when the components in any heat preservation room 100 are prefabricated, the first gantry crane 500 can hoist the components, which not only facilitates the hoisting of the components, but also increases the hoisting efficiency of the components, realizes the batch production of the components, and increases the construction efficiency of the components.

[0120] The above component prefabrication construction production line further includes a second gantry crane 300. The second gantry crane 300 is located above the heat preservation room 100. The second gantry crane 300 is connected with a vibration row 310. The second gantry crane 300 reciprocates linearly along the arrangement direction of the heat preservation rooms 100 to drive the vibration row 310 to vibrate the concrete in the heat preservation room 100.

[0121] It should be noted that the movement direction of the second gantry crane 300 is the same as that of the first gantry crane 500, but the specification size of the second gantry crane 300 is smaller than that of the first gantry crane 500, and the second gantry crane 300 and the first gantry crane 500 will not interfere with each other during movement.

[0122] Such as Figure 11As shown in the figure, the vibrating row 310 includes a traveling trolley 311, a telescopic frame assembly 312, a vibrating member 313, and a control cabinet 314. The traveling trolley 311 is movably connected to the second gantry 300; the telescopic frame assembly 312 is connected to the traveling trolley 311 to move on the second gantry 300 along with the traveling trolley 311; the vibrating member 313 is connected to the telescopic frame assembly 312 to move up and down along with the telescopic frame assembly 312; the control cabinet 314 is arranged on the traveling trolley 311, and the control cabinet 314 is electrically connected to the second gantry 300, the traveling trolley 311, the telescopic frame assembly 312, and the vibrating member 313 respectively.

[0123] Through the reciprocating linear motion of the second gantry 300 along the arrangement direction of the heat preservation house 100, the vibrating member 313 can move back and forth on the ground. The traveling trolley 311 drives the vibrating member 313 to move left and right, up and down on the second gantry 300, so as to flexibly adjust the operation position. Through the telescopic movement of the telescopic frame assembly 312, the vibrating member 313 is driven to move up and down, so as to adapt to the vibrating requirements of concrete at different heights. The control cabinet 314 controls the whole device to realize the actions such as the second gantry 300 walking on the ground, the traveling trolley 311 moving left and right, and the telescopic movement of the telescopic frame assembly 312, so that the vibrating member 313 can vibrate efficiently, ensuring the vibrating quality and efficiency of the concrete.

[0124] The above-mentioned prefabricated construction production line of components further includes a transport trolley 400. The transport trolley 400 can reciprocate linearly between a first position and a second position, where the first position is correspondingly set with a certain position on the movement track of the first gantry 500, and the second position is correspondingly set with the storage device 600 of the components, realizing the efficient transfer of the components at different positions.

[0125] In some embodiments, the storage device 600 is arranged by the sea or at a port terminal to facilitate the transfer of the components onto the transport ship 700 and transport them by sea through the transport ship 700.

[0126] For the convenience of description, the heat preservation houses 100 are numbered as the 1st heat preservation house 100, the 2nd heat preservation house 100, the 3rd heat preservation house 100... along the arrangement direction of the heat preservation house 100 respectively.

[0127] When prefabricating components on the above-mentioned component prefabrication construction production line, the belt conveyor 200 moves to the position of the No. 1 heat preservation room 100, conveys concrete into the No. 1 heat preservation room 100, and conducts component pouring in the No. 1 heat preservation room 100. The second gantry crane 300 moves above the No. 1 heat preservation room 100, so that the vibrating row 310 vibrates the concrete in the No. 1 heat preservation room 100. After the concrete pouring in the No. 1 heat preservation room 100 is completed, the ceiling of the No. 1 heat preservation room 100 closes the top opening of the No. 1 heat preservation room 100, and component curing is carried out in the No. 1 heat preservation room 100; the belt conveyor 200 moves to the position of the No. 2 heat preservation room 100, conveys concrete into the No. 2 heat preservation room 100, conducts concrete pouring in the No. 2 heat preservation room 100, the second gantry crane 300 moves above the No. 2 heat preservation room 100, so that the vibrating row 310 vibrates the concrete in the No. 2 heat preservation room 100. After the concrete pouring in the No. 2 heat preservation room 100 is completed, component curing is carried out in the No. 2 heat preservation room 100; the belt conveyor 200 moves to the position of the No. 3 heat preservation room 100, conveys concrete into the No. 3 heat preservation room 100, the second gantry crane 300 moves above the No. 3 heat preservation room 100, so that the vibrating row 310 vibrates the concrete in the No. 3 heat preservation room 100, and concrete pouring is carried out in the No. 3 heat preservation room 100, and so on.

[0128] During the process of pouring components, if the concrete curing in the No. 1 heat preservation room 100 is completed and the condition for opening the top opening of the heat preservation room 100 is met in the No. 1 heat preservation room 100, the first gantry crane 500 moves to the No. 1 heat preservation room 100, takes out the component from the top opening of the No. 1 heat preservation room 100, hoists the component and moves to the first position, places the component on the transport trolley 400, the transport trolley 400 transports the component to the second position, so that the prefabricated component is stored in the storage device 600, and then the transport trolley 400 returns to the first position to wait for transporting the next prefabricated component.

[0129] It should be noted that multiple components are poured in multiple heat preservation rooms 100 in chronological order, that is, the pouring times of multiple components are staggered. Therefore, the prefabrication completion times of multiple components are also staggered from each other. Usually, it is unlikely that two components are prefabricated and completed at the same time and require the first gantry crane 500 for hoisting. The first gantry crane 500 can carry out hoisting and transportation in sequence, and there will be no situation of transportation congestion.

[0130] The above-mentioned component prefabrication construction production line can prefabricate components in batches, and has high component prefabrication efficiency and good construction quality.

[0131] Finally, it should be noted that: the various embodiments in this specification are described in a progressive manner, and the key points of each embodiment are the differences from other embodiments. The same and similar parts among the various embodiments can be referred to each other.

[0132] The above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements on some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A component prefabrication construction method, used for prefabricating large components in a heat preservation room in winter; the heat preservation room comprises a main body, a ceiling and a driving device; the interior of the main body is used to provide a place for prefabrication of the components and to accommodate the components; the ceiling is located on the top of the main body, and the ceiling can be extended in a first direction to open or close the top opening of the heat preservation room; the driving device is used to drive the ceiling to extend and retract; it is characterized in that The component prefabrication construction method comprises the following steps: Control the driving device to drive the ceiling to retract, so as to open the top opening of the insulation room, and control the temperature control valve to close the steam spray pipe; make the belt conveyor outside the insulation room cross the wall of the insulation room to transport concrete into the insulation room, so as to cast components in the insulation room; After the casting of the component is completed, the driving device is controlled to drive the ceiling to extend so as to close the top opening of the insulation room; the temperature control valve is controlled to open the steam nozzle so that steam passes through the steam nozzle into the insulation room to increase the temperature in the insulation room; when the temperature in the insulation room reaches a first set value, the temperature control valve is controlled to adjust the amount of steam introduced so that the insulation room is in a constant temperature state, so that the component is cured in a constant temperature environment; After the maintenance of the component is completed, the temperature control valve is controlled to close the steam nozzle, stop the steam from entering the insulation room, and reduce the temperature in the insulation room; when the temperature in the insulation room is reduced to a second set value, the drive device is controlled to drive the ceiling to contract, so that the ceiling opens the top opening of the insulation room; the first door machine is used to hoist the component to leave the insulation room from the top opening of the insulation room.

2. The component prefabrication construction method according to claim 1, characterized in that: After the component maintenance is completed, during the process of lowering the temperature of the insulation room, when the temperature difference between the component core and the component surface, and the temperature difference between the component surface and the environment outside the insulation room do not exceed 15°C, the top opening of the insulation room is opened.

3. The component prefabrication construction method according to claim 2, characterized in that: A temperature sensor is installed in the insulation room, and the temperature sensor is connected to a control unit, and the control unit is also connected to the temperature control valve; the control unit is configured to: when maintaining a constant temperature in the insulation room, if the detection value of the temperature sensor exceeds the first set value, control the temperature control valve to reduce the flow rate of the steam nozzle; if the detection value of the temperature sensor is lower than the third set value, control the temperature control valve to increase the flow rate of the steam nozzle.

4. The component prefabrication construction method according to claim 3, characterized in that: The control unit is further configured to: when the temperature in the insulation room changes, if the temperature change rate in the insulation room is greater than a first threshold, control the temperature control valve to adjust the flow of the steam nozzle to control the temperature change rate in the insulation room to be no greater than the first threshold.

5. The component prefabrication construction method according to claim 1, characterized in that: The ceiling includes trusses and membrane cloth; the trusses are configured in multiple numbers, and the multiple trusses are arranged along the first direction; the two ends of the trusses in the length direction are arranged along the second direction, and the second direction and the first direction are arranged perpendicular to each other in the horizontal plane; a telescopic member is provided between two adjacent trusses, and the telescopic member can be extended and retracted along the first direction; the membrane cloth is connected to the trusses and is located on the top of the trusses; the driving device is connected to the trusses, and the driving device is used to drive the trusses to reciprocate along the first direction.

6. The component prefabrication construction method according to claim 5, characterized in that: The driving device includes a guide rail, a running wheel and a motor; the guide rail is arranged at the top of the main body, and the guide rail extends along the first direction; the running wheel is arranged at the bottom of the truss, and the running wheel can be slidably arranged on the guide rail; the motor is installed on one of the trusses or two adjacent trusses, and is used to drive the running wheel to move.

7. The component prefabrication construction method according to claim 6, characterized in that: The front-to-rear direction of the main body is arranged along the first direction; the guide rail is extended to the rear of the main body and arranged outside the insulation room, so that the truss can move along the guide rail to the outside of the insulation room, thereby completely opening the top opening of the insulation room.

8. A component prefabrication production line, characterized in that: The method comprises the heat preservation room and the first door crane in the component prefabrication construction method according to any one of claims 1 to 7; The insulation rooms are provided in a plurality, and the plurality of insulation rooms are independently provided and arranged along the same straight line; one component is prefabricated in each insulation room at a time, and after the casting of the component in the current insulation room is completed, the casting of the component is carried out in the next insulation room along the arrangement order of the insulation rooms; The first door machine is arranged above the heat preservation room, and the first door machine can reciprocate linearly along the arrangement direction of the heat preservation room to hoist the prefabricated components in the heat preservation room.

9. The component prefabrication production line according to claim 8, characterized in that: It also includes a second door machine, which is located above the insulation room. The second door machine is connected to a vibrating row. The second door machine reciprocates in a linear motion along the arrangement direction of the insulation room to drive the vibrating row to vibrate the concrete in the insulation room.

10. The component prefabrication production line according to claim 8, characterized in that: It also includes a transport trolley, which can reciprocate linearly between a first position and a second position. The first position is set corresponding to a position on the motion trajectory of the first door machine, and the second position is set corresponding to a storage device for the component.

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