Boiler for concrete curing

Abstract

The utility model relates to the technical field of concrete curing, in particular to a boiler for concrete curing. The boiler for concrete curing comprises a steam boiler body and a shunting box used for shunting steam exhausted out of the steam boiler body, the shunting box is provided with a steam exhaust branch pipe, a steam curing pipe is installed on the steam exhaust branch pipe, and an anti-recharge assembly is arranged in each steam curing pipe. According to the boiler for concrete curing, when the steam supply amount of the steam boiler body is insufficient or the steam boiler body does not need to be used for steam supply, the rod cap drives the sealing disc to seal the steam flowing cavity through the middle connecting rod under the action of the elastic force of the spring, on one hand, steam flow division is reduced, steam is intensively discharged into other steam curing pipes, and the steam curing effect is improved; on the other hand, the hidden danger that a large amount of steam is liquefied after the steam supplied in the later period is in contact with the inner wall of the pipeline due to the fact that the temperature in the pipeline is reduced due to backflow and backward flowing of cold air in the cover through the steam curing pipe is avoided.

Description

Technical Field

[0001] This utility model relates to the field of concrete curing technology, and in particular to a boiler for concrete curing. Background Technology

[0002] Currently, concrete curing involves artificially creating specific humidity and temperature conditions to maintain or accelerate the hardening of freshly poured concrete, thereby enhancing its strength. This curing process requires a boiler to convert liquid water into steam. The steam is then transported through exhaust pipes. A protective hood is placed above the concrete to be cured, and the steam enters the hood to humidify the concrete, thus achieving the curing process. However, currently, when the steam from the boiler enters the exhaust pipes, insufficient steam supply can lead to cold air backflow into the protective hood. This backflow of cold air rapidly cools the exhaust pipes, resulting in a low internal temperature. Consequently, subsequent steam supplied into the exhaust pipes liquefies significantly upon contact, converting into liquid water and reducing the quality of the concrete curing process.

[0003] Therefore, it is necessary to provide a new type of boiler for concrete curing to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a boiler for concrete curing.

[0005] The concrete curing boiler provided by this utility model includes a steam boiler body and a diversion box for diverting the steam discharged from the steam boiler body. A water collection tank connected to the diversion box is installed at the bottom of the diversion box, and a plurality of equally spaced exhaust branch pipes are fixedly installed on the front end face of the diversion box. Each exhaust branch pipe is equipped with a steam curing pipe for conveying steam for concrete curing, and each steam curing pipe is equipped with an anti-backflow component.

[0006] The anti-backflow assembly includes a fixed plate, which is fixedly fitted inside the steam curing pipe. A central connecting rod is inserted into the steam flow cavity opened in the fixed plate. A sealing plate for sealing the steam flow cavity is fixedly installed at the insertion end of the central connecting rod, and a rod cap is fixedly installed at the other end of the central connecting rod. A spring is sleeved on the central connecting rod.

[0007] Preferably, one end of the spring is fixedly connected to the inner wall of the fixed disk, and the other end of the spring is fixedly connected to the rod cap.

[0008] Preferably, a pressure sensor is also embedded in the fixed plate, and the pressure sensor is arranged opposite to the sealing plate.

[0009] Preferably, the connecting cavity between the diversion box and the water collection tank has a Y-shaped structure, a liquid level sensor is fixedly installed in the Y-shaped connecting cavity, and a drain valve for draining water is installed on the side wall of the water collection tank.

[0010] Preferably, the inner wall of the diversion box is equipped with two symmetrically distributed slide rails, and a filter screen for filtering steam is inserted between the two slide rails. A side cover for sealing the opening is fixedly installed on the opening provided on the side wall of the diversion box.

[0011] Preferably, a steam inlet is fixedly installed on the top of the distribution box, and the steam inlet is fixedly connected to the exhaust pipe of the steam boiler body.

[0012] Preferably, the filter screen is located between the steam inlet and the exhaust branch pipe.

[0013] Preferably, a solenoid valve is fixedly installed on the exhaust branch pipe.

[0014] Compared with related technologies, the concrete curing boiler provided by this utility model has the following beneficial effects:

[0015] When the steam supply from the main body of the steam boiler is insufficient or when the main body of the steam boiler is not needed for steam supply, the rod cap, under the action of the spring force, drives the sealing plate through the central connecting rod to seal the steam flow chamber. On the one hand, this reduces the diversion of steam, allowing it to be concentrated and discharged into other steam curing pipes. On the other hand, it avoids the risk of cold air from inside the cover flowing back and back into the steam curing pipe, causing the internal temperature of the pipe to drop, resulting in a large amount of steam liquefying after the later supplied steam comes into contact with the inner wall of the pipe. Attached Figure Description

[0016] Figure 1 A schematic diagram of a preferred embodiment of the concrete curing boiler provided by this utility model;

[0017] Figure 2 for Figure 1 The diagram shows the structure of the flow divider box.

[0018] Figure 3 for Figure 1 A cross-sectional view of the steam curing pipe shown.

[0019] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the anti-backflow component.

[0020] Numbered in the diagram: 1. Steam boiler body; 2. Diversion box; 21. Steam inlet; 22. Exhaust branch pipe; 221. Solenoid valve; 23. Water collection tank; 24. Liquid level sensor; 25. Drain valve; 26. Side cover; 27. Slide rail; 3. Steam curing pipe; 4. Anti-backflow assembly; 41. Fixed plate; 41a. Steam flow chamber; 42. Central connecting rod; 43. Sealing plate; 44. Rod cap; 45. Spring; 46. Pressure sensor; 5. Filter screen. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0023] Please see Figures 1 to 4 The present invention provides a concrete curing boiler, which includes a steam boiler body 1 and a diversion box 2 for diverting the steam discharged from the steam boiler body 1.

[0024] In the embodiments of this utility model, please refer to Figures 1 to 4 The top of the distribution box 2 is fixedly installed with a steam inlet interface 21, and the steam inlet interface 21 is fixedly connected to the steam exhaust pipe of the steam boiler body 1. The front end face of the distribution box 2 is fixedly installed with multiple equally spaced exhaust branch pipes 22. A solenoid valve 221 is fixedly installed on the exhaust branch pipe 22, and each exhaust branch pipe 22 is equipped with a steam curing pipe 3 for conveying steam for concrete curing.

[0025] It should be noted that: after connecting the tail of each exhaust branch pipe 22 to a metal corrugated pipe and then to the cover interface used for covering concrete, the steam generated by the steam boiler body 1 is distributed to different areas of the concrete through the distribution box 2, so that the steam can be used to steam cure the concrete, greatly improving the curing range.

[0026] In the embodiments of this utility model, please refer to Figures 1 to 4Each steam curing pipe 3 is equipped with an anti-backflow component 4. The anti-backflow component 4 includes a fixed plate 41, which is fixedly fitted inside the steam curing pipe 3. A central connecting rod 42 is inserted into the steam flow cavity 41a opened in the fixed plate 41. A sealing plate 43 for sealing the steam flow cavity 41a is fixedly installed at the inserted end of the central connecting rod 42. A rod cap 44 is fixedly installed at the other end of the central connecting rod 42. A spring 45 is sleeved on the central connecting rod 42. One end of the spring 45 is fixedly connected to the inner wall of the fixed plate 41, and the other end of the spring 45 is fixedly connected to the rod cap 44.

[0027] It should be noted that when the steam supply of the steam boiler body 1 is insufficient or when the steam supply of the steam boiler body 1 is not required, the rod cap 44, under the action of the spring force of the spring 45, drives the sealing plate 43 through the central connecting rod 42 to seal the steam flow chamber 41a. On the one hand, this reduces the diversion of steam and allows it to be concentrated and discharged into other steam curing pipes 3. On the other hand, it avoids the risk of cold air inside the cover flowing back and back into the steam curing pipe 3, causing the internal temperature of the pipe to drop and resulting in a large amount of steam liquefying after the later supplied steam comes into contact with the inner wall of the pipe.

[0028] Furthermore, to enable staff to quickly identify which pipe has insufficient steam supply, a pressure sensor 46 is embedded in the fixed plate 41, and the pressure sensor 46 is positioned opposite the sealing plate 43. A signal connection (wireless signal) indicator light is installed on the steam boiler body 1. When the sealing plate 43 seals the steam flow chamber 41a, the pressure sensor 46 is pressed against the sealing plate 43, and the corresponding indicator light illuminates. Staff can then identify the issue and check whether the steam boiler body 1 has insufficient water supply or is caused by other reasons.

[0029] In the embodiments of this utility model, please refer to Figures 1 to 4 The bottom of the distribution box 2 is equipped with a water collection tank 23 that communicates with the distribution box 2. The communication cavity between the distribution box 2 and the water collection tank 23 is Y-shaped. A liquid level sensor 24 is fixedly installed in the Y-shaped communication cavity. A drain valve 25 for draining water is installed on the side wall of the water collection tank 23. Two symmetrically distributed slide rails 27 are installed on the inner wall of the distribution box 2. A filter screen 5 for filtering steam is inserted between the two slide rails 27 and is slidably connected. The filter screen 5 is located between the steam inlet 21 and the steam outlet branch pipe 22. A side cover 26 for sealing the opening is fixedly installed on the opening of the side wall of the distribution box 2. The side cover 26 is designed to facilitate the replacement and maintenance of the filter screen 5.

[0030] It should be noted that: when the drain valve 25 is connected to the water storage tank, some of the steam entering the diversion box 2 will liquefy and flow into the water collection tank 23. When the liquid level sensor 24 senses that the water level has reached the predetermined threshold, the drain valve 25 will be opened and the water will be drained, recycled, and stored. The filter screen 5 can filter out impurities.

[0031] The working principle of the concrete curing boiler provided by this utility model is as follows:

[0032] After connecting the tail end of each exhaust branch pipe 22 to a metal corrugated pipe and then to the cover interface used for covering concrete, the steam generated by the steam boiler body 1 is distributed to different concrete areas through the distribution box 2, so that the steam can be used to steam cure the concrete, greatly improving the curing range. When the steam supply of the steam boiler body 1 is insufficient or when the steam supply of the steam boiler body 1 is not needed, the rod cap 44, under the action of the spring force of the spring 45, drives the sealing plate 43 through the central connecting rod 42 to seal the steam flow chamber 41a. On the one hand, this reduces the diversion of steam and concentrates it to be discharged into other steam curing pipes 3. On the other hand, it avoids the risk of cold air in the cover flowing back and back into the steam curing pipe 3, causing the internal temperature of the pipe to drop and causing a large amount of steam to liquefy after contact with the inner wall of the pipe.

[0033] The pressure sensor 46 and liquid level sensor 24 involved in this utility model can be selected according to specific needs, and there is no limitation here. Their circuits and controls all adopt conventional technologies, and will not be described in detail here.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A boiler for curing concrete, characterized by, The utility model provides a steam boiler body (1) and the steam boiler body (1) outside exhaust steam is shunted for the shunt box (2) of shunting, the bottom of shunt box (2) is installed with the water collecting tank (23) of communication with shunt box (2), and the front end surface of shunt box (2) is fixedly installed with a plurality of equidistant distribution exhaust branch pipe (22), each exhaust branch pipe (22) is installed with steam curing pipe (3) for the steam curing of concrete curing and carries steam, and each steam curing pipe (3) is equipped with anti backfilling assembly (4) inside, The anti backfilling assembly (4) includes a fixed disc (41) that is fixedly embedded in the steam curing pipe (3), and a flow steam cavity (41a) is formed in the fixed disc (41), a middle connecting rod (42) is inserted into the flow steam cavity (41a), a sealing disc (43) is fixedly installed at the insertion end of the middle connecting rod (42) to seal the flow steam cavity (41a), and a rod cap (44) is fixedly installed at the other end of the middle connecting rod (42), and a spring (45) is sleeved on the middle connecting rod (42).

2. The concrete curing boiler according to claim 1, characterized in that, One end of the spring (45) is fixedly connected to the inner disc wall of the fixed disc (41), and the other end of the spring (45) is fixedly connected to the rod cap (44).

3. The concrete curing boiler according to claim 2, characterized in that, The fixed disc (41) further has a pressure sensor (46) embedded therein, and the pressure sensor (46) is arranged opposite to the sealing disc (43).

4. The concrete curing boiler according to claim 1, wherein The communication cavity of the shunt box (2) and the water collecting tank (23) has a Y-shaped structure, a liquid level sensor (24) is fixedly installed in the Y-shaped communication cavity, and a drain valve (25) for draining water is installed on the side wall of the water collecting tank (23).

5. The concrete curing boiler according to claim 1, wherein Two symmetrical slide rails (27) are installed on the inner wall of the shunt box (2), a filter screen (5) is inserted between the two slide rails (27) and is used for filtering steam, and a side cover (26) for sealing the opening is fixedly installed on the opening provided on the side wall of the shunt box (2).

6. The concrete curing boiler according to claim 5, wherein An inlet interface (21) is fixedly installed on the top of the shunt box (2), and the inlet interface (21) is fixedly connected to the exhaust pipe of the steam boiler body (1).

7. The concrete curing boiler according to claim 6, wherein The filter screen (5) is located between the inlet interface (21) and the exhaust branch pipe (22).

8. The concrete curing boiler of claim 1, wherein, An electromagnetic valve (221) is fixedly installed on the exhaust branch pipe (22).

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