CN218659732U - Steam generation device for steam curing of prefabricated box girder - Google Patents

Abstract

The utility model provides a steam generator is used in prefabricated case roof beam steam health preserving belongs to prefabricated case roof beam technical field, and it has solved current steam generator can not be fine to carry out steam to prefabricated case roof beam inside and spray the maintenance, and it is slow to produce steam speed, can't carry out the problem of retrieving to remaining steam after the work is accomplished. This prefabricated box roof beam steam is steam generator for health preserving, including box and water conservancy diversion case, the bottom of box is fixed with the water tank, and the bottom of water tank is fixed with the universal wheel, and the top of water tank is fixed with the bottom of box, and the inside of box is fixed with the suction pump, and the bottom of suction pump is passed through the water pipe and is fixed with the water tank, and the top of suction pump is fixed with the raceway, the utility model has the advantages of can improve the rate of heating of water fast, realize the production steam that can be faster, great improvement the output of steam, and can accomplish the interior surplus steam of back device and carry out the retrieval again to work.

Description

Steam generation device for steam curing of prefabricated box girder

Technical Field

The utility model belongs to the technical field of the case roof beam is prefabricated, a steam device is related to, especially a steam generator is used in prefabricated case roof beam steam health preserving.

Background

Precast box girder is as the important component parts of overpass etc. and the box girder need be made in advance at the girder factory usually, and the box girder that prefabricates is placed side by side the interval at the roof beam factory, places one like this and conveniently transports, and two conveniently carry out the maintenance, need carry out the water spray that lasts when the maintenance to thereby guarantee that water persists the sufficient time on the box girder and improve maintenance quality.

The maintenance is sprayed to outside many times to current device steam generator generally, but can not be fine spray the maintenance to the inside steam that carries on of prefabricated box girder, and traditional air jet system all is single shower nozzle, and produces steam speed slow, can't retrieve the problem of recycling to remaining steam after the work is accomplished.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a steam generator for steam health preserving of precast box girder, the technical problem that this utility model will solve is: how when carrying out steam health preserving to the hollow part of prefabricated box girder, it is fixed to carry out the route to steam generator, and carries out recycle to the moisture in the remaining steam to improve the health preserving effect and the improvement steam speed to prefabricated box girder, save the water resource.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a prefabricated case roof beam steam generating device for health preserving, includes box and water conservancy diversion case, the bottom of box is fixed with the water tank, and the bottom of water tank is fixed with the universal wheel, the top of water tank and the bottom fixed connection of box, the inside of box is fixed with the suction pump, the bottom of suction pump passes through water pipe and water tank fixed connection, the top of suction pump is fixed with the raceway, the raceway intercommunication has the water conservancy diversion seat, and the top of raceway extends to the inside of water conservancy diversion seat, the inside of box is fixed with two closing plates, two constitute sealed space between the inner wall of closing plate and box, sealed space's outside is fixed with first jet device, the water conservancy diversion case is fixed in the inside of box, and the water conservancy diversion case is located sealed space, be fixed with the hang plate between water conservancy diversion case and the raceway, the upside of hang plate is fixed with electric telescopic handle, electric telescopic handle's telescopic end is fixed with L type fixed body, L type fixed body other end is fixed with the joint head, the joint head with set up the notch adaptation of water conservancy diversion case, the top and water conservancy diversion seat fixed connection, the top of water conservancy diversion seat is provided with the steam jet device, the top of electric telescopic handle is provided with the sealed steam jet device, the sealed steam jet assembly, the sealed steam jet device is provided with the sealed space, the sealed both sides of the sealed steam jet device, the sealed steam jet device is provided with the sealed steam jet unit, and the sealed space, the top of the sealed steam jet device, and the sealed steam jet device, the sealed steam jet device is provided with the top of the sealed both sides, and the sealed steam jet device, the sealed steam jet device is provided with the sealed both sides, and the sealed steam jet device is provided with the sealed steam jet device, and the sealed steam jet nozzle, and the steam jet device is provided with the steam jet device.

The utility model discloses a theory of operation is: when the during operation, at first open the suction pump, the suction pump work can be taken out the water in the water tank through the water pipe, the suction pump is with water suction to the water conservancy diversion seat, at this moment, it can drive L type fixed body downstream to utilize electric telescopic handle to do concertina movement, let the block of L type fixed body block the notch of baffle box, thereby prevent that the water in the water tank from influencing the output of steam, electric telescopic handle can drive the downward motion of baffle box simultaneously, the raceway can push open airtight subassembly and slide to the inside of electric steamer this moment, thereby electric steamer begins work, get into sealed space from the venthole that its surface was seted up with steam, first air jet equipment discharges steam from sealed space, thereby spray prefabricated case roof beam to the side, simultaneously the second air jet equipment also can be with steam from sealed space discharge, thereby spray prefabricated case roof beam to the top, when work is accomplished, when no longer needing steam, the same reason, utilize electric telescopic handle's concertina movement, it can drive L type fixed body downstream, thereby let the block can keep away from the block and get into the inside of baffle box, thereby the water source can carry out the water injection circulation effect of water injection, thereby can carry out the sealed water injection circulation spray water injection circulation device of water source.

The first air injection device comprises a first fan, an air inlet pipe is fixed to an air inlet of the first fan, one end of the air inlet pipe is fixed to the sealing plate, one end of the air inlet pipe extends into the sealing space, a first air injection head is fixed to an air outlet of the first fan, and a spray head of the first air injection head is located outside the box body.

Structure more than adopting, when the during operation, first fan can pass through the gas outlet through the intake pipe with the steam in the confined space and carry first vapour head that spouts to spout steam from first vapour head, can spray the prefabricated case roof beam of side.

A guide plate is fixed inside the sealed space, one end of the guide plate is fixed with the sealing plate, and the other end of the guide plate is fixed with the guide box.

Structure more than adopting can be with rivers leading-in to the fixed box through the guide plate to better let device recovery cooling back moisture.

The second air jet system comprises a storage box, the bottom of the storage box is fixed at the top of the box body, the box body is fixed with a pipeline through a second fan air outlet, the top of the storage box is rotatably connected with an cover plate, the cover plate is provided with a round hole matched with the pipeline, one end of the pipeline penetrates through the round hole, the other end of the pipeline is fixed with a second air jet head, and the pipeline is placed inside the storage box.

Structure more than adopting, when the during operation, inputes the jet head of second with steam through the pipeline to spray the top of prefabricated case roof beam, and the pipeline can follow the round hole extension that the apron on the bin was seted up, thereby can let the worker hold the second and spout the jet head and spray to spouting the vapour dead angle, improved the effect of health preserving.

The utility model discloses an electronic steamer, including electric steamer, division board, first abdominal cavity and second abdominal cavity, electric steamer's inside is fixed with the division board, the division board falls into first abdominal cavity and second abdominal cavity with electric steamer, first abdominal cavity is fixed with communicating pipe, the external surface fixed of communicating pipe has the evaporating dish, the external surface fixed of communicating pipe has the high temperature steam stick, be fixed with airtight subassembly in the second abdominal cavity, airtight subassembly includes closed fixture block, it is connected with closed fixture block to rotate on the water transfer mouth, one side of closed fixture block is fixed with the spring, the other end of spring rotates on connecting the abdominal wall of second.

Structure more than adopting, when electric steam engine during operation, the raceway gets into the second abdominal cavity through pushing up closed fixture block, closed fixture block compression spring is the motion outward, and then the raceway can be with the communicating pipe in the first abdominal cavity of water source introduction, in dispersing the evaporation ware in communicating pipe with water communicating pipe, high temperature steam stick evaporates the evaporation ware, a plurality of evaporation ware have increased water heating area, thereby improve steam efficiency and output, the same reason, leave in the second abdominal cavity gets into the water conservancy diversion seat when the raceway, airtight subassembly can seal the closure to the water delivery mouth, prevent that water from getting into wherein.

The spraying device comprises a flow guide pipe, one end of the flow guide pipe is fixed with one side of the flow guide seat, and an automatic sprayer is fixed at the other end of the flow guide pipe.

Structure more than adopting, during the water drainage that the honeycomb duct will get into in the water conservancy diversion seat arrived sprinkler, automatic sprinkler can spray in the confined space, reaches rapid cooling's purpose, also for the moisture in the faster collection steam simultaneously, reaches cyclic utilization's purpose.

The limiting device comprises a connecting frame and a gravity guide rod, a supporting arm is fixed to the bottom of the gravity guide rod through the connecting rod, the supporting arm is composed of a first arm support and a second arm support, the first arm support is connected to the outer surface of the connecting frame in a rotating mode through a clamping seat, the other end of the second arm support is connected with a limiting rod in a rotating mode through the clamping seat, the bottom end of the limiting rod is fixed to the box body through the clamping seat, the top end of the limiting rod is connected with a sliding ball in a rotating mode, one side of the box body is connected with a box door in a rotating mode, and a limiting hole is formed in the outer surface of the box door.

Structure more than adopting, when the during operation, open the chamber door, the gag lever post that loses the holding power can be led the stick by gravity and drive the downstream, the gravity is led the stick and can be driven the support arm downstream, thereby it rotates to drive the gag lever post, finally let the gag lever post stretch out, spacing pore pair both sides gag lever post that the chamber door was seted up is spacing, each plane of adaptation that the sliding ball can be better, can slide on it, thereby it is spacing to assist the device distance of marcing, prevent that the vapour spraying head from touchhing the wall body on both sides, when sprinkler during operation, manual income chamber door with the gag lever post, it can to close the chamber door.

Compared with the prior art, this steam generation device for steam health preserving of precast box girder has following advantage:

1. when wanting steam device during operation, at first open the suction pump, the water in the water tank is taken out to suction pump work meeting water pipe, the suction pump takes water suction to the water conservancy diversion seat, at this moment, it can drive L type stationary part downstream to utilize electric telescopic handle to do concertina movement, let the block joint of the L type stationary part live the notch of water conservancy diversion case, thereby prevent that water in the water tank from influencing the output of steam, electric telescopic handle drives the water conservancy diversion seat downstream, the raceway can slide to the inside of electric steam engine this moment, thereby electric steam engine begins work, get into the confined space in the venthole of seting up steam from its surface, first air jet system discharges steam from the confined space, thereby spray the prefabricated box girder to the side, simultaneously the second air jet system also can be discharged steam from the confined space, thereby spray the prefabricated box girder to the top, when the work is accomplished, the same reason, utilize electric telescopic handle's concertina movement, it moves to drive L type stationary part downstream, thereby let the block keep away from the block joint mouth, the raceway can get into the inside of water conservancy diversion seat, thereby can introduce the water source and spray the device and utilize the surplus moisture that the cooling effect of spraying, thereby can carry out the water source.

2. When the during operation, the raceway gets into the second abdominal cavity through pushing up closed fixture block, and closed fixture block compression spring outwards moves, and then the raceway can be with the communicating pipe in the first abdominal cavity of water source introduction, and communicating pipe will disperse the evaporation ware in communicating pipe with water, and the high temperature steam stick evaporates the evaporation ware, and a plurality of evaporation ware have increased moisture heating area to improve steam efficiency and output.

3. When the during operation, open the chamber door, the gag lever post that loses the holding power can be driven the downstream by gravity guide rod, gravity guide rod can drive the support arm downstream, thereby it rotates to drive the gag lever post, finally let the gag lever post stretch out, spacing pore pair both sides gag lever post that the chamber door was seted up is spacing, each plane of adaptation that the sliding ball can be better, can slide on it, thereby it is spacing to advance the distance to the device and assist, prevent that the steam jet head from touchhing the wall body on both sides, when sprinkler during operation, manual income chamber door with the gag lever post, it can to close the chamber door.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic perspective view of the present invention.

Fig. 3 is a cross-sectional view of the electric steamer of the present invention.

Fig. 4 is a sectional view of the middle deflector.

Fig. 5 is a sectional view of the storage box of the present invention.

In the figure, 1, a box body; 2. a connecting frame; 3. a first steam jet head; 4. a first fan; 5. a gravity guide rod; 6. a support arm; 7. a limiting rod; 8. a water tank; 9. a universal wheel; 10. a sealing plate; 11. an automatic sprinkler; 12. a flow guide pipe; 13. a baffle; 14. an L-shaped fixing body; 15. an air inlet pipe; 16. a flow guide box; 17. an inclined plate; 18. an electric telescopic rod; 19. a water pump; 20. a water delivery pipe; 21. a flow guide seat; 22. an electric steam engine; 23; a second steam jet head; 24. a storage tank; 25. a pipeline; 26. a high temperature steam bar; 27. an evaporating dish; 28. a communicating pipe; 29. closing the clamping block; 30. a spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1-5, the steam generating device for steam curing of the prefabricated box girder comprises a box body 1 and a flow guide box 16, wherein a water tank 8 is fixed at the bottom of the box body 1, universal wheels 9 are fixed at the bottom of the water tank 8, the top of the water tank 8 is fixedly connected with the bottom of the box body 1, a water pump 19 is fixed inside the box body 1, the bottom of the water pump 19 is fixedly connected with the water tank 8 through a water pipe, a water delivery pipe 20 is fixed at the top of the water pump 19, the water delivery pipe 20 is communicated with a flow guide seat 21, the top end of the water delivery pipe 20 extends into the flow guide seat 21, two sealing plates 10 are fixed inside the box body 1, a sealing space is formed between the two sealing plates 10 and the inner wall of the box body 1, a first air injection device is fixed outside the sealing space, the flow guide box 16 is fixed inside the box body 1, and the flow guide box 16 is located in the sealing space, an inclined plate 17 is fixed between the diversion box 16 and the water pipe 20, an electric telescopic rod 18 is fixed on the upper side of the inclined plate 17, an L-shaped fixing body 14 is fixed on the telescopic end of the electric telescopic rod 18, a clamping head is fixed at the other end of the L-shaped fixing body 14, the clamping head is matched with a notch formed in the diversion box 16, the top end of the electric telescopic rod 18 is fixedly connected with the diversion seat 21, an electric steam engine 22 is arranged at the top of the diversion seat 21, an exhaust hole is formed in the outer surface of the electric steam engine 22, the electric steam engine 22 is communicated with the diversion seat 21 through a water delivery port, a closed assembly is arranged on the water delivery port, the water delivery port is matched with the sealing assembly, spraying devices are arranged on two sides of the diversion seat 21 and located in a sealing space, a second air injection device is arranged at the top of the box body 1, and the second air injection device is communicated with the sealing space through a second fan.

In this embodiment, when the during operation, at first open suction pump 19, the water in water tank 8 is taken out through the water pipe to the work of suction pump 19, suction pump 19 draws water into water conservancy diversion seat 21, at this moment, it can drive L type stationary part 14 downstream to utilize electric telescopic handle 18 to be telescopic motion, let the block of L type stationary part 14 block the notch of retaining box 16, thereby prevent that the water in water tank 8 from influencing the output of steam, electric telescopic handle 18 can drive water conservancy diversion seat 21 downstream simultaneously, raceway 20 can push up the inside that airtight subassembly slided to electric steam engine 22 this moment, electric steam engine 22 begins work, get into sealed space in the venthole of seting up steam from its surface, first air jet system is with steam from sealed space discharge, thereby spray to the prefabricated box girder of side, the second air jet system also can discharge steam from sealed space, thereby spray to the prefabricated box girder at the top, when the work is accomplished, when needing steam, the same reason, utilize the telescopic motion of electric telescopic handle 18, L stationary part drives to lower the water conservancy diversion seat, thereby let the inside circulation of steam injection system 20 can utilize the sealed water conservancy diversion to spray the sealed water conservancy diversion and can be sprayed, thereby the sealed water conservancy diversion block can be introduced to the inside circulation of the recovery device that the cooling water conservancy diversion can be sprayed.

The first air injection device comprises a first fan 4, an air inlet pipe 15 is fixed to an air inlet of the first fan 4, one end of the air inlet pipe 15 is fixed to the sealing plate 10, one end of the air inlet pipe 15 extends into the sealing space, a first air injection head 3 is fixed to an air outlet of the first fan 4, and a spray head of the first air injection head 3 is located outside the box body 1.

In this embodiment, when the during operation, first fan 4 can pass through the intake pipe and carry first vapour head 3 with the steam in the confined space through the gas outlet to spout first vapour head 3 with steam, can spray the prefabricated box girder of side.

A guide plate 13 is fixed in the sealed space, one end of the guide plate 13 is fixed with the sealing plate 10, and the other end of the guide plate 13 is fixed with the guide box 16.

In this embodiment, the deflector 13 can guide the water flow into the fixed box 16, so as to better recover the moisture after cooling.

The second air injection device comprises a storage box 24, the bottom of the storage box 24 is fixed at the top of the box body 1, the box body 1 is fixed with a pipeline 25 through a second fan air outlet, the top of the storage box 24 is rotatably connected with a cover plate, the cover plate is provided with a round hole matched with the pipeline 25, one end of the pipeline 25 penetrates through the round hole, the one end of the pipeline 25 is fixed with a second air injection head 23, and the pipeline 25 is placed inside the storage box 24.

In this embodiment, when the during operation, import the second jet head 23 with steam through the pipeline to spray the top of prefabricated box girder, and the round hole extension that the apron was seted up on the pipeline 25 can follow bin 24, thereby can let the worker hold the second and spout the first 23 of vapour and spray the vapour dead angle, improved the effect of health preserving.

The inside of electronic steam engine 22 is fixed with the division board, and the division board falls into first abdominal cavity and second abdominal cavity with electronic steam engine 22, and first abdominal cavity is fixed with communicating pipe 28, and the external fixed surface of communicating pipe 28 has evaporating dish 27, and the external fixed surface of communicating pipe 28 has high temperature steam stick 26, is fixed with airtight subassembly in the second abdominal cavity, and airtight subassembly includes closed fixture block 29, the last rotation of water delivery port is connected with closed fixture block 29, one side of closed fixture block 29 is fixed with spring 30, the other end of spring 30 rotates on the inner wall of connecting the second abdominal cavity.

In this embodiment, when electric steam engine 22 during operation, raceway 20 gets into the second abdominal cavity through pushing up closed fixture block, closed fixture block compression spring 30 is the motion outward, and then raceway 20 can be with the communicating pipe 28 in the first abdominal cavity of water source introduction, communicating pipe 28 disperses the water to in the evaporating dish 27 in communicating pipe 28, high temperature steam stick 26 evaporates evaporating dish 27, a plurality of evaporating dishes 27 have increased moisture heated area, thereby improve steam efficiency and output, and on the same principle, leave the second abdominal cavity when the raceway and get into water conservancy diversion seat 21, airtight subassembly can be closed the water conveying mouth, prevent that water from getting into wherein.

The spraying device comprises a guide pipe 12, one end of the guide pipe 12 is fixed with one side of a guide seat 21, and the other end of the guide pipe 12 is fixed with an automatic sprayer 11.

In this embodiment, the draft tube 12 guides the water entering the draft seat 21 to the spraying device, and the automatic sprayer 11 sprays the water into the sealed space to achieve the purpose of rapid cooling, and also to collect the water in the steam more rapidly to achieve the purpose of recycling.

Still include stop device, stop device includes link 2 and gravity guide rod 5, the bottom of gravity guide rod 5 is fixed with support arm 6 through the link, support arm 6 comprises first cantilever crane and second cantilever crane, first cantilever crane rotates through the cassette to be connected on link 2's surface, the other end of second cantilever crane rotates through the cassette to be connected with gag lever post 7, the cassette is fixed on box 1 through the bottom of gag lever post 7, the top of gag lever post 7 rotates and is connected with the sliding ball, one side of box 1 rotates and is connected with the chamber door, spacing hole has been seted up to the surface of chamber door.

In this embodiment, when the during operation, open the chamber door, the gag lever post 7 that loses the holding power can be driven the downstream by gravity guide rod 5, gravity guide rod 5 can drive support arm 6 downstream, thereby drive gag lever post 7 and rotate, finally let gag lever post 7 stretch out, spacing pore pair both sides gag lever post 7 that the chamber door was seted up carry on spacingly, each plane of adaptation that the sliding ball can be better, can slide on it, thereby it is spacing to advance the distance to the device and assist, prevent that the vapour spraying head from touchhing the wall body on both sides, when sprinkler during operation, manual income chamber door with the gag lever post, it can to close the chamber door.

When equipment during operation, at first open suction pump 19, suction pump 19 leads to pipe takes out the water in the water tank 8, rethread raceway 20 gets into water conservancy diversion seat 21, at this moment, electric telescopic handle 18 is the shrink motion, drive the fixed body upward movement of L type, thereby carry out the block to the water inlet of seting up on the baffle box 16 and fix, prevent that the water in the water tank 8 from producing the influence to the steam in the confined space, electric telescopic handle 18 is the shrink motion, can drive water conservancy diversion seat 21 downstream simultaneously, water conservancy diversion seat 21 can drive the motion of electric steam engine 22. At this moment, the water pipe 20 pushes open the closed fixture block 29 through the sliding of the round hole opened by the diversion seat 21, the closed fixture block 29 can drive the spring 30 to move to one side, finally enter into the first abdominal cavity of the electric steamer 22, the water source can enter into the communicating pipe 28 in the second abdominal cavity through the round hole opened by the partition plate in the electric steamer 22, finally enter into each evaporating dish 27, the high-temperature steam rod 26 can perform high-temperature evaporation in the evaporating dish 27, thereby generating a large amount of steam, thus improving the evaporation area of moisture, allowing the steam to be rapidly generated, finally discharging the steam into the sealed space through the air diffusing hole opened on the outer surface of the electric steamer 22, after the steam enters into the sealed space, the first fan 4 starts to work, the first fan 4 conveys the steam in the sealed space to the first steam jet head 3 through the air inlet pipe 15, so the first steam jet head 3 can perform jet maintenance on two sides of the prefabricated box girder, meanwhile, the second fan can convey the steam into the second steam jet head 23 through the pipeline 25, and the pipeline 25 can be retracted in the box girder, so that the top of the prefabricated box door 24 can be recovered when the prefabricated box door is not used.

When the automatic steam engine 22 is in air injection work, the sliding door on the side face of the box body 1 is opened upwards, the gravity guide rod 5 is supported on the door wall of the sliding door through the fixed limiting block, after the sliding door is opened upwards, the gravity guide rod 5 losing the supporting force can downwards drive the supporting arm 6 to move downwards and also drive the first arm support and the second arm support to rotate downwards, the connecting frame 2 is a device with a hollow inner part, the limiting rod 7 can be driven to extend outwards, and the top end of the limiting rod 7 is rotatably connected with the sliding ball, so that a limiting effect can be achieved on the running route of the device, the first air injection head 3 is prevented from being damaged when the device deviates in running in a prefabricated box girder, and similarly, when the device is not used, the limiting device is taken into the door through the sliding door, and therefore the space is saved.

When the device does not work, the electric telescopic rod 18 can do contraction movement and can drive the L-shaped fixing body 14 to move upwards, so that the device is far away from a water inlet formed in the diversion box 16, meanwhile, the electric telescopic rod 18 drives the diversion seat 21 to move upwards, so that the water pipe 20 slides out of a first abdominal cavity of the automatic steam engine 22, at the moment, the spring 30 releases spring force to rebound the closing clamping block 29 to the original position, the device is closed, at the moment, the water pipe 20 enters the diversion seat 21, a water source enters the automatic sprinkler 11 through the diversion pipe 12 and then sprays water through the sprinkler head, so that the temperature in the sealed space is reduced, the residual water vapor is collected, and after the temperature is reduced, the water source can guide water into the diversion box 16 through the diversion plate 13, and the cyclic utilization of the water vapor is realized.

To sum up, be the shrink motion through electric telescopic handle, drive the L type fixed body and carry out the block or keep away from the flow guide box, according to automatic steam engine work or when out of work again, realize carrying out recycle's function again to remaining steam in the device, solved the problem that current device can't be retrieved unnecessary steam.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (7)

1. The steam generating device for steam curing of the prefabricated box girder comprises a box body (1) and a flow guide box (16), wherein a water tank (8) is fixed at the bottom of the box body (1), universal wheels (9) are fixed at the bottom of the water tank (8), the steam generating device is characterized in that the top of the water tank (8) is fixedly connected with the bottom of the box body (1), a water suction pump (19) is fixed inside the box body (1), the bottom of the water suction pump (19) is fixedly connected with the water tank (8) through a water pipe, a water delivery pipe (20) is fixed at the top of the water suction pump (19), the water delivery pipe (20) is communicated with a flow guide seat (21), the top end of the water delivery pipe (20) extends into the flow guide seat (21), two sealing plates (10) are fixed inside the box body (1), a sealing space is formed between the two sealing plates (10) and the inner wall of the box body (1), a first air injection device is fixed outside the sealing space, the flow guide box (16) is fixed inside the box body (1), the flow guide box (16) is located in the sealing space, an electric expansion rod (17) is fixed between the flow guide box (18) and an upper side of the expansion rod (17), the other end of the L-shaped fixing body (14) is fixed with a clamping head, the clamping head is matched with a notch formed in a flow guide box (16), the top end of an electric telescopic rod (18) is fixedly connected with a flow guide seat (21), an electric steam engine (22) is arranged at the top of the flow guide seat (21), an exhaust hole is formed in the outer surface of the electric steam engine (22), the electric steam engine (22) is communicated with the flow guide seat (21) through a water conveying port, a closed assembly is arranged on the water conveying port, the water conveying port is matched with a sealing assembly, spraying devices are arranged on two sides of the flow guide seat (21), are located in a sealing space, a second air injection device is arranged at the top of the box body (1), and are communicated with the sealing space through a second fan.

2. The steam generating device for steam curing of the prefabricated box girder according to claim 1, wherein the first air injection device comprises a first fan (4), an air inlet pipe (15) is fixed to an air inlet of the first fan (4), one end of the air inlet pipe (15) is fixed to the sealing plate (10), one end of the air inlet pipe (15) extends into the sealing space, a first steam injection head (3) is fixed to an air outlet of the first fan (4), and a spray head of the first steam injection head (3) is located outside the box body (1).

3. The steam generating device for steam curing of the precast box girder according to claim 1, wherein a guide plate (13) is fixed inside the sealed space, one end of the guide plate (13) is fixed with the sealing plate (10), and the other end of the guide plate (13) is fixed with the guide box (16).

4. The steam generating device for steam curing of the precast box girder as recited in claim 1, wherein the second air injection device comprises a storage box (24), the bottom of the storage box (24) is fixed on the top of the box body (1), the box body (1) is fixed with a pipeline (25) through a second fan air outlet, the top of the storage box (24) is rotatably connected with a cover plate, the cover plate is provided with a round hole matched with the pipeline (25), one end of the pipeline (25) passes through the round hole, and one end of the pipeline (25) is fixed with a second air injection head (23), and the pipeline (25) is placed inside the storage box (24).

5. The steam generating device for steam curing of the precast box girder according to claim 1, wherein a partition plate is fixed inside the electric steam engine (22), the partition plate divides the electric steam engine (22) into a first abdominal cavity and a second abdominal cavity, a communicating pipe (28) is fixed in the first abdominal cavity, an evaporating dish (27) is fixed on the outer surface of the communicating pipe (28), a high-temperature steam rod (26) is fixed on the outer surface of the communicating pipe (28), a sealing component is arranged in the second abdominal cavity, the sealing component comprises a closing clamping block (29), a closing clamping block (29) is rotatably connected to the water delivery port, a spring (30) is fixed on one side of the closing clamping block (29), and the other end of the spring (30) is rotatably connected to the inner wall of the second abdominal cavity.

6. The steam generating device for steam curing of the precast box girder according to claim 1, wherein the spraying device comprises a guide pipe (12), one end of the guide pipe (12) is fixed to one side of the guide seat (21), and the other end of the guide pipe (12) is fixed with an automatic sprayer (11).

7. The steam generating device for steam curing of the precast box girder according to claim 1, further comprising a limiting device, wherein the limiting device comprises a connecting frame (2) and a gravity guide rod (5), a supporting arm (6) is fixed at the bottom of the gravity guide rod (5) through the connecting rod, the supporting arm (6) is composed of a first arm support and a second arm support, the first arm support is rotatably connected to the outer surface of the connecting frame (2) through a clamping seat, the other end of the second arm support is rotatably connected to a limiting rod (7) through the clamping seat, the bottom end of the limiting rod (7) is fixed to the box body (1) through the clamping seat, the top end of the limiting rod (7) is rotatably connected to a sliding ball, one side of the box body (1) is rotatably connected to a box door, and a limiting hole is formed in the outer surface of the box door.

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