CN210082054U

CN210082054U - Maintenance device based on post-tensioning method precast box girder steam generator

Info

Publication number: CN210082054U
Application number: CN201920756797.6U
Authority: CN
Inventors: 赵文锋; 孙宏勇
Original assignee: China MCC17 Group Co Ltd
Current assignee: China MCC17 Group Co Ltd
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-02-18
Anticipated expiration: 2029-05-24

Abstract

The utility model discloses a curing means based on prefabricated case roof beam steam generator of post-tensioning method relates to concrete maintenance technical field. This curing means based on prefabricated box girder steam generator of post-tensioning method, including the health preserving canopy, one side of health preserving canopy is provided with steam generator, steam generator's output intercommunication has the steam conduit, the steam conduit sets up in the health preserving canopy. This curing means based on prefabricated box girder steam generator of post-tensioning method, improvement through exhaust mechanism, and steam generator, steam conduit and health preserving shed's cooperation is used, ensure that the concrete of newly-pouring hardens in a suitable temperature environment in the certain time, prevent effectively that the early season crack of concrete, guarantee concrete later stage intensity and durability, its operating method is simple, easy operation, safe and reliable keeps warm simultaneously and maintains effectually, can prevent effectively that the early season crack of concrete, guarantee later stage intensity and the durability of concrete.

Description

Maintenance device based on post-tensioning method precast box girder steam generator

Technical Field

The utility model relates to a concrete maintenance technical field specifically is a curing means based on prefabricated case roof beam steam generator of post-tensioning method.

Background

The concrete is artificial stone which is prepared by taking cement as a main cementing material, mixing water, sand, stones and chemical additives and mineral admixtures as necessary according to a proper proportion, uniformly stirring, densely forming, curing and hardening, and is mainly divided into two stages and states: the plastic state before setting hardening, i.e. fresh concrete or concrete mix, and the rigid state after hardening, i.e. hardened concrete or concrete.

In the prior art, when the concrete is hardened, the concrete is sensitive to the change of temperature and humidity, the conventional sprinkling covering and maintaining is greatly influenced by human factors, the maintenance is carried out only by sprinkling covering moist surface water and steam water of hydration heat, the maintaining quality is not ideal, if the maintenance is improper or untimely, the moisture on the surface of the concrete is lost too fast, cracks often appear on the surface of the concrete, the common quality is caused, the strength and the durability of a box girder are directly influenced, and even the structural safety is influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides a curing means based on prefabricated case roof beam steam generator of post-tensioning method, solved in prior art, the concrete is when the sclerosis, it is very sensitive to the change of temperature and humidity, conventional watering covers the health preserving, it is great to receive the human factor to influence, only lean on the steam water that the moist surface water of watering cover and hydration heat to come the health preserving, the health preserving quality is unsatisfactory, if the maintenance is improper or untimely, make concrete surface moisture scatter and disappear too fast, the crack can often appear in the concrete surface, cause the quality general illness, the intensity of direct influence case roof beam and the problem of durability.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a curing means based on prefabricated case roof beam steam generator of post-tensioning method, includes the health preserving canopy, one side of health preserving canopy is provided with steam generator, steam generator's output intercommunication has the steam conduit, the steam conduit sets up in the health preserving canopy, the positive surface of steam conduit is provided with exhaust mechanism, be provided with the case roof beam that sets up with the steam conduit cooperation in the health preserving canopy.

Exhaust mechanism includes the blast pipe, the bottom and the steam conduit intercommunication of blast pipe, the inner chamber of blast pipe is provided with ventilative otter board, the bottom fixedly connected with guide bar of ventilative otter board, the bottom fixedly connected with limiting plate of guide bar, the inner wall fixed connection of limiting plate and blast pipe, the surface cover of guide bar is equipped with the displacement piece that sets up with the blast pipe cooperation, the through-hole has been seted up on the displacement piece, the bottom fixed connection of atress spring and ventilative otter board is passed through at the top of displacement piece, and the atress spring encircles the surface of setting in the guide bar, the bottom on displacement piece right side is provided with the jam piece that sets up with the blast pipe cooperation, the buffer hole that sets up with the jam piece cooperation is seted up on the right side.

Preferably, both sides of the displacement block are movably connected with displacement wheels through rotating shafts, and the displacement wheels are in contact with the inner wall of the exhaust pipe.

Preferably, the steam generator adopts a DLD24-0.7 type full-automatic electric heating steam boiler, the steam pipeline is a heat-resistant rubber plastic hose with the outer diameter phi mm30, a two-way joint is arranged at an inlet, two sides of a beam body are respectively provided with one way, the distance between the exhaust mechanisms is 100cm, the health preserving shed is erected by adopting 50 multiplied by 80mm square steel and is assembled in sections, a covering material is a PC high-temperature resistant sunlight plate and is connected with the square steel support into a whole, and a personnel access door is arranged at the end of the beam.

(III) advantageous effects

The utility model provides a curing means based on prefabricated case roof beam steam generator of post-tensioning method. The method has the following beneficial effects: this curing means based on prefabricated box girder steam generator of post-tensioning method, improvement through exhaust mechanism, and steam generator, steam conduit and health preserving shed's cooperation is used, ensure that the concrete of newly-pouring hardens in a suitable temperature environment in the certain time, prevent effectively that the early season crack of concrete, guarantee concrete later stage intensity and durability, its operating method is simple, easy operation, safe and reliable keeps warm simultaneously and maintains effectually, can prevent effectively that the early season crack of concrete, guarantee later stage intensity and the durability of concrete.

Drawings

Fig. 1 is a top view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a schematic structural diagram of the exhaust mechanism of the present invention.

In the figure: 1. a steam generator; 2. a steam line; 3. a health preserving shed; 4. an exhaust mechanism; 41. a stressed spring; 42. a displacement wheel; 43. a displacement block; 44. a guide bar; 45. a gas-permeable net plate; 46. a buffer hole; 47. a plugging block; 48. a limiting plate; 49. an exhaust pipe; 5. and (4) a box girder.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a curing means based on prefabricated case roof beam steam generator of post-tensioning method, including health preserving canopy 3, one side of health preserving canopy 3 is provided with steam generator 1, steam generator 1 adopts DLD24-0.7 type full-automatic electric heating steam boiler, steam conduit 2 is the heat-resisting rubber plastic hose of external diameter phi mm30, set up two-way joint in the import department, respectively arrange one in roof beam body both sides, exhaust mechanism 4's interval is 100cm, health preserving canopy 3 adopts 50X 80mm square steel to set up, the segmentation is assembled, the covering material is PC high temperature resistant sunshine board, it is whole to be connected with the square steel support, and set up personnel access door at the beam-ends, steam generator 1's output intercommunication has steam conduit 2, steam conduit 2 sets up in health preserving canopy 3, steam conduit 2's front surface is provided with exhaust mechanism 4, be provided with the case roof beam 5 that sets up with steam conduit 2 cooperation in the health preserving canopy 3.

The exhaust mechanism 4 comprises an exhaust pipe 49, the bottom end of the exhaust pipe 49 is communicated with the steam pipeline 2, an inner cavity of the exhaust pipe 49 is provided with a breathable net plate 45, the bottom of the breathable net plate 45 is fixedly connected with a guide rod 44, the bottom end of the guide rod 44 is fixedly connected with a limiting plate 48, the limiting plate 48 is fixedly connected with the inner wall of the exhaust pipe 49, the surface of the guide rod 44 is sleeved with a displacement block 43 which is matched with the exhaust pipe 49, two sides of the displacement block 43 are movably connected with displacement wheels 42 through rotating shafts, the displacement wheels 42 are in contact with the inner wall of the exhaust pipe 49, the displacement wheels 42 are used for limiting the moving range of the displacement block 43, through holes are formed in the displacement block 43, the top of the displacement block 43 is fixedly connected with the bottom of the breathable net plate 45 through a stress spring 41, the stress spring 41 is arranged on the surface of, the right side of the exhaust pipe 49 is provided with a buffer hole 46 which is matched with the blocking block 47.

After the case roof beam 5 is pour and is accomplished, at first hoist and mount 3 sections health preserving sheds to pedestal department and cover 5 case roof beams and fix firmly, two sections intersegmental gaps adopt the canvas to block up, avoid the temperature to run off and can't reach the heat preservation effect, secondly steam generator 1 lays at the beam-ends, be connected steam conduit 2 and steam generator 1, and lay steam conduit 2 in the roof beam body both sides, insert steam generator 1 with the water source at last, and full water, open steam generator 1, steam is carried to health preserving sheds 3 in from steam conduit 2, steam will flow out from exhaust mechanism 4 that 2 walls of steam conduit arranged, thereby reach incessant moist whole roof beam body concrete, play the heat preservation, the health preserving effect of moisturizing.

During operation, steam loops through the through-hole of displacement piece 43 and ventilative otter board 45 discharges, along with the increase of the gaseous flow velocity in steam conduit 2, displacement piece 43 receives the effort and upwards moves for blast pipe 49, thereby make jam piece 47 upwards move for buffer hole 46, when gaseous flow velocity is greater than the setting value, jam piece 47 is located to buffer hole 46's top, thereby make buffer hole 46's both ends circulate for steam conduit 2, thereby make partial steam pass through buffer hole 46 and discharge, with this increase steam flow range, avoided simultaneously because the gaseous flow velocity is great and the device that leads to damages.

To sum up, this curing means based on prefabricated box girder steam generator of post-tensioning method, through exhaust mechanism 4's improvement to and steam generator 1, steam conduit 2 and health preserving canopy 3's cooperation is used, ensure that the concrete of newly pouring hardens in a suitable temperature environment in the certain time, effectively prevent the early season crack of concrete, guarantee concrete later stage intensity and durability, its operating method is simple, easy operation, safe and reliable keeps warm simultaneously and maintains effectually, can effectively prevent the early season crack of concrete, guarantee later stage intensity and durability of concrete.

The device can not only provide sufficient vapor of case roof beam concrete during the health preserving, the steam of production forms confined water (vapour) fog environment around the roof beam body, water (vapour) fog moist each corner concrete surface, it is effectual to keep warm, the maintenance of moisturizing, avoid appearing the dry and wet circulation, prevent that case roof beam concrete surface from forming phenomenons such as crack, and the device is simple, easy operation, safe and reliable, repeatedly usable, and is with low costs, the installation, it is convenient to dismantle, it is energy-saving to save labour, save the water source, both guarantee the concrete health preserving effect, can improve the inherent quality of concrete again, guarantee concrete later stage intensity and durability.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a curing means based on prefabricated box girder steam generator of post-tensioning method, includes health preserving canopy (3), its characterized in that: a steam generator (1) is arranged on one side of the curing shed (3), the output end of the steam generator (1) is communicated with a steam pipeline (2), the steam pipeline (2) is arranged in the curing shed (3), an exhaust mechanism (4) is arranged on the front surface of the steam pipeline (2), and a box girder (5) matched with the steam pipeline (2) is arranged in the curing shed (3);

the exhaust mechanism (4) comprises an exhaust pipe (49), the bottom end of the exhaust pipe (49) is communicated with a steam pipeline (2), an inner cavity of the exhaust pipe (49) is provided with a breathable net plate (45), the bottom of the breathable net plate (45) is fixedly connected with a guide rod (44), the bottom end of the guide rod (44) is fixedly connected with a limiting plate (48), the limiting plate (48) is fixedly connected with the inner wall of the exhaust pipe (49), a displacement block (43) which is matched with the exhaust pipe (49) is sleeved on the surface of the guide rod (44), a through hole is formed in the displacement block (43), the top of the displacement block (43) is fixedly connected with the bottom of the breathable net plate (45) through a stress spring (41), the stress spring (41) is arranged on the surface of the guide rod (44) in a surrounding manner, a blocking block (47) which is matched with the exhaust pipe (49) is arranged at the bottom of the right side, and a buffer hole (46) matched with the blocking block (47) is formed in the right side of the exhaust pipe (49).

2. The maintenance device based on the steam generator of the post-tensioned precast box girder of claim 1, wherein: both sides of the displacement block (43) are movably connected with displacement wheels (42) through rotating shafts, and the displacement wheels (42) are in contact with the inner wall of the exhaust pipe (49).

3. The maintenance device based on the steam generator of the post-tensioned precast box girder of claim 1, wherein: the steam generator (1) adopts a DLD24-0.7 type full-automatic electric heating steam boiler, the steam pipeline (2) is a heat-resistant rubber plastic hose with the outer diameter phi mm30, a two-way joint is arranged at an inlet, two sides of a beam body are respectively provided with one way, the distance between the exhaust mechanisms (4) is 100cm, the curing shed (3) is erected by adopting 50 x 80mm square steel and is assembled in sections, a covering material is a PC high-temperature resistant sunlight plate and is connected with the square steel support into a whole, and a personnel access door is arranged at the end of the beam.