Movable formwork cast-in-place beam winter construction heat preservation and maintenance system
By using a system of polyurethane insulation foam coating, curing quilts, insulation and waterproof tarpaulins, and steam pipes combined with a steam generator on the top surface of the cast-in-place beams in the mobile formwork and inside the box girder, the problems of uneven heating and safety hazards of the traditional open flame heating method are solved. This achieves efficient and safe temperature control and moisture curing, ensuring the quality of concrete.
Patent Information
- Application Number
- CN202520025794.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-07
AI Technical Summary
In the traditional winter construction of cast-in-place beams using mobile formwork, the open flame heating method suffers from uneven heating, significant safety hazards, and high manpower and material costs, making it difficult to effectively control the temperature and ensure concrete quality.
The system employs a polyurethane insulation foam coating, curing quilts, insulation and waterproof tarpaulins, and steam pipes combined with a steam generator. This process involves heating and moisturizing the top surface of the cast-in-place beams on the moving formwork and inside the box chamber. Temperature is controlled using steam pipes, and wind deflectors are used to prevent heat loss.
This method prevents concrete from freezing before it reaches 60% strength, ensuring concrete quality, improving curing efficiency, reducing manpower and material consumption, and lowering safety risks.
Smart Images
Figure CN223907339U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mobile mould frame cast-in-situ beam construction technical field, concretely is a kind of mobile mould frame cast-in-situ beam winter construction heat preservation maintenance system. BACKGROUND
[0002] During the construction process of mobile mould frame cast-in-situ beam, since construction area is located in north, temperature has dropped to minus in middle and late November every year, and winter construction must be implemented on site. Traditional winter maintenance heat preservation adopts fire bucket open fire direct heating method, which needs operating personnel to add firewood at any time, and due to the distance from fire bucket, it leads to uneven heating, and temperature is difficult to control, and open fire is easy to cause fire risk on site, consumes a lot of manpower and material resources, and has significant safety hazard. UTILITY MODEL CONTENTS
[0003] The technical problem to be solved by the utility model is to provide a kind of mobile mould frame cast-in-situ beam winter construction heat preservation maintenance system, which uses steam pipe to heat and keep moist in the top surface of beam and box chamber of mobile mould frame cast-in-situ beam, to ensure that concrete is not frozen before strength reaches 60%, and does not affect concrete quality, and the maintenance method is safe, saves a lot of manpower and material resources, and improves the efficiency of maintenance.
[0004] The technical scheme of the utility model is as follows:
[0005] A kind of mobile mould frame cast-in-situ beam winter construction heat preservation maintenance system, including polyurethane heat preservation foam coating, maintenance cotton quilt, heat preservation waterproof tarpaulin, steam pipe and steam generator, the polyurethane heat preservation foam coating is sprayed and coated on the outer surface of the bottom surface template and outer template of mobile mould frame, the maintenance cotton quilt is laid on the top surface of beam of mobile mould frame cast-in-situ beam, the heat preservation waterproof tarpaulin includes top heat preservation waterproof tarpaulin and end heat preservation waterproof tarpaulin, the top heat preservation waterproof tarpaulin is laid on the maintenance cotton quilt, the end heat preservation waterproof tarpaulin is covered in the two end heads of mobile mould frame cast-in-situ beam box chamber and seals the box chamber, the steam pipe includes top steam pipe and internal steam pipe, the top steam pipe is arranged between top heat preservation waterproof tarpaulin and maintenance cotton quilt and is connected with steam generator, the internal steam pipe is arranged on the bottom surface in the box chamber of mobile mould frame cast-in-situ beam and is connected with steam generator.
[0006] The thickness of the polyurethane heat preservation foam coating is 5-10 centimeters.
[0007] The maintenance cotton quilt includes top maintenance cotton quilt and internal maintenance cotton quilt, the top maintenance cotton quilt is laid on the top surface of beam of mobile mould frame cast-in-situ beam, and the internal maintenance cotton quilt is laid on the bottom surface in the box chamber of mobile mould frame cast-in-situ beam, and the internal steam pipe is arranged on the internal maintenance cotton quilt.
[0008] The distance between the top surface of the waterproof and heat-insulating tarpaulin and the top surface of the curing cotton quilt is 20-30cm, and the top surface steam pipe is arranged on the curing cotton quilt.
[0009] The steam generator comprises a top surface steam generator and an internal steam generator, the top surface steam generator is arranged on the top surface of the mobile formwork cast-in-place beam, and the internal steam generator is arranged in the box chamber of the mobile formwork cast-in-place beam.
[0010] The edge of the curing area on the top surface of the mobile formwork cast-in-place beam is vertically provided with a row of wind baffles.
[0011] The mobile formwork cast-in-place beam has the advantages that:
[0012] (1), the polyurethane heat-insulating foam coating is sprayed on the bottom surface formwork and the outer surface of the outer formwork of the mobile formwork before the concrete pouring, the polyurethane heat-insulating foam coating serves as a heat-insulating layer between the formwork of the mobile formwork and the external air, and the heat-insulating effect of the concrete is realized when the concrete is poured.
[0013] (2), the curing cotton quilt, the waterproof and heat-insulating tarpaulin and the steam pipe are laid after the concrete finishing, the temperature in the box chamber and on the top surface of the mobile formwork cast-in-place beam is improved, the moisture retention effect is achieved, the distance between the top surface waterproof and heat-insulating tarpaulin and the top surface curing cotton quilt is 20-30cm, and the steam flow of the steam pipe is convenient to circulate.
[0014] (3), the steam generator comprises the top surface steam generator and the internal steam generator, the internal steam generator is arranged in the box chamber of the mobile formwork cast-in-place beam, the internal steam pipe is directly heated in the box chamber, the temperature loss is slowed down, and the steam transmission pipeline is not needed.
[0015] (4), the wind baffles are fixed on the protective fence of the formwork, the windproof effect is achieved, the water evaporation rate of the top surface of the beam is slowed down, the cracks on the top surface of the beam are avoided, and the heat loss rate is slowed down. DRAWINGS
[0016] Figure 1 is a structural schematic view of the mobile formwork cast-in-place beam of the utility model.
[0017] Figure 2 is a structural schematic view of the mobile formwork cast-in-place beam of the utility model.
[0018] Reference signs: 01 - bottom formwork, 02 - outer formwork, 03 - movable formwork cast-in-situ beam, 1 - polyurethane thermal insulation foam coating, 2 - top surface curing cotton quilt, 3 - internal curing cotton quilt, 4 - top surface thermal insulation waterproof tarpaulin, 5 - end thermal insulation waterproof tarpaulin, 6 - top surface steam pipe, 7 - internal steam pipe, 8 - top surface steam generator, 9 - internal steam generator. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0020] See Figure 1 And Figure 2 A movable formwork cast-in-situ beam winter construction thermal insulation curing system, comprising a polyurethane thermal insulation foam coating, a curing cotton quilt, a thermal insulation waterproof tarpaulin, a steam pipe, a steam generator and a wind shield, before concrete pouring, a 5cm-thick polyurethane thermal insulation foam coating 1 is sprayed and coated on the outer surface of the bottom formwork 01 and the outer formwork 02 of the movable formwork;
[0021] The curing cotton quilt comprises a top surface curing cotton quilt 2 and an internal curing cotton quilt 3, the top surface curing cotton quilt 2 is laid on the beam top surface of the movable formwork cast-in-situ beam 03, and the internal curing cotton quilt 3 is laid on the bottom surface in the box chamber of the movable formwork cast-in-situ beam 03;
[0022] The thermal insulation waterproof tarpaulin comprises a top surface thermal insulation waterproof tarpaulin 4 and an end thermal insulation waterproof tarpaulin 5, the top surface thermal insulation waterproof tarpaulin 4 is laid on the top surface curing cotton quilt 2, and the distance between the bottom surface of the top surface thermal insulation waterproof tarpaulin 4 and the top surface of the top surface curing cotton quilt 2 is 20cm, and the end thermal insulation waterproof tarpaulin 5 is arranged on the two ends of the box chamber of the movable formwork cast-in-situ beam 03 to close the box chamber;
[0023] The steam pipe comprises a top surface steam pipe 6 and an internal steam pipe 7, the steam generator comprises a top surface steam generator 8 and an internal steam generator 9, the top surface steam generator 8 is arranged on the beam top surface of the movable formwork cast-in-situ beam 03, the internal steam generator 9 is arranged in the box chamber of the movable formwork cast-in-situ beam 03, the top surface steam pipe 6 is arranged on the top surface curing cotton quilt 2 and connected with the top surface steam generator 8, and the internal steam pipe 7 is arranged on the internal curing cotton quilt 3 and connected with the internal steam generator 9;
[0024] A circle of wind shields (1.2m high) is vertically arranged at the edge of the curing area on the beam top surface of the movable formwork cast-in-situ beam 03, and the circle of wind shields is fixedly connected with the protective fence of the formwork itself.
[0025] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A kind of mobile mould frame cast-in-place beam winter construction heat preservation maintenance system, it is characterized by: The polyurethane thermal foam coating is sprayed and coated on the outer surfaces of the bottom formwork and the outer formwork of the movable formwork, the maintenance cotton quilt is laid on the top surface of the movable formwork cast-in-place beam, the top surface thermal waterproof tarpaulin is laid on the maintenance cotton quilt, the end thermal waterproof tarpaulin is arranged at the two ends of the movable formwork cast-in-place beam chamber to close the chamber, the top surface steam pipe is arranged between the top surface thermal waterproof tarpaulin and the maintenance cotton quilt and connected with the steam generator, and the internal steam pipe is arranged on the bottom surface in the movable formwork cast-in-place beam chamber and connected with the steam generator.
2. The temperature-maintaining and curing system for cast-in-place beam winter construction of movable formwork according to claim 1, characterized in that: The thickness of the polyurethane thermal foam coating is 5-10 cm.
3. The system for temperature maintaining and curing of the cast-in-place beam of the movable die frame in winter construction according to claim 1, characterized in that: The maintenance cotton quilt comprises a top surface maintenance cotton quilt and an internal maintenance cotton quilt, the top surface maintenance cotton quilt is laid on the top surface of the movable formwork cast-in-place beam, and the internal maintenance cotton quilt is laid on the bottom surface in the movable formwork cast-in-place beam chamber.
4. The insulation and curing system for cast-in-place beam winter construction of mobile formwork according to claim 1, characterized in that: The distance between the bottom surface of the top surface thermal waterproof tarpaulin and the top surface of the maintenance cotton quilt is 20-30 cm, and the top surface steam pipe is arranged on the maintenance cotton quilt.
5. The insulation and curing system for cast-in-place beam winter construction of mobile formwork according to claim 1, characterized in that: The steam generator comprises a top surface steam generator and an internal steam generator, the top surface steam generator is arranged on the top surface of the movable formwork cast-in-place beam, and the internal steam generator is arranged in the chamber of the movable formwork cast-in-place beam.
6. The insulation and curing system for cast-in-place beam winter construction of mobile formwork according to claim 1, characterized in that: A row of wind baffles is vertically arranged at the edges of the maintenance area on the top surface of the movable formwork cast-in-place beam. The polyurethane thermal foam coating is sprayed and coated on the outer surfaces of the bottom formwork and the outer formwork of the movable formwork, the maintenance cotton quilt is laid on the top surface of the movable formwork cast-in-place beam, the top surface thermal waterproof tarpaulin is laid on the maintenance cotton quilt, the end thermal waterproof tarpaulin is arranged at the two ends of the movable formwork cast-in-place beam chamber to close the chamber, the top surface steam pipe is arranged between the top surface thermal waterproof tarpaulin and the maintenance cotton quilt and connected with the steam generator, and the internal steam pipe is arranged on the bottom surface in the movable formwork cast-in-place beam chamber and connected with the steam generator. The thickness of the polyurethane thermal foam coating is 5-10 cm. The maintenance cotton quilt comprises a top surface maintenance cotton quilt and an internal maintenance cotton quilt, the top surface maintenance cotton quilt is laid on the top surface of the movable formwork cast-in-place beam, and the internal maintenance cotton quilt is laid on the bottom surface in the movable formwork cast-in-place beam chamber. The distance between the bottom surface of the top surface thermal waterproof tarpaulin and the top surface of the maintenance cotton quilt is 20-30 cm, and the top surface steam pipe is arranged on the maintenance cotton quilt. The steam generator comprises a top surface steam generator and an internal steam generator, the top surface steam generator is arranged on the top surface of the movable formwork cast-in-place beam, and the internal steam generator is arranged in the chamber of the movable formwork cast-in-place beam. A row of wind baffles is vertically arranged at the edges of the maintenance area on the top surface of the movable formwork cast-in-place beam.