Energy-saving steam curing device for low-carbon concrete pipe pile production

Abstract

The utility model relates to a kind of energy-saving steaming device for low-carbon concrete pipe pile production, belong to low-carbon concrete pipe pile production technical field, including steaming box and the concrete pipe pile ontology being set to the inside of steaming box, the top of the steaming box is provided with the steam recovery mechanism that can recycle steam, the steam recovery mechanism includes the mounting box fixedly connected on the upper surface of steaming box.This energy-saving steaming device for low-carbon concrete pipe pile production, by steam recovery mechanism, high-temperature waste steam discharged from steaming box enters annular heat exchange pipeline around the outside of liquid storage tank by communication pipeline, in this process, the waste steam waste heat is fully absorbed by cold water in liquid storage tank, cold water is preheated, preheated water is then transported to steam generator for producing fresh steam, greatly reduces the energy required to heat normal temperature water body to working temperature, forms efficient energy internal circulation.

Description

Technical Field

[0001] This utility model relates to the field of low-carbon concrete pipe pile production technology, specifically an energy-saving steam curing device for low-carbon concrete pipe pile production. Background Technology

[0002] Low-carbon concrete pipe piles are precast concrete piles that reduce carbon emissions by improving upon the technology of ordinary concrete pipe piles. The core principle is to significantly reduce the carbon footprint throughout the entire production and use cycle while ensuring engineering performance. Energy-saving steam curing devices are the core equipment in the production of low-carbon concrete pipe piles. By optimizing the energy utilization efficiency of the steam curing process, they significantly reduce energy consumption and carbon emissions during the pipe pile curing stage, making them one of the key links in achieving low-carbon production of pipe piles.

[0003] Energy-saving steam curing devices are needed in the production process of low-carbon concrete pipe piles. Chinese utility model patent CN217514170U discloses a steam curing device for high-strength prestressed concrete pipe piles, belonging to the field of concrete technology. Its key technical features include a steam curing chamber with a steam generator installed on its right side. The output end of the steam generator is connected to an air inlet pipe, the other end of which is connected to the bottom right side of the steam curing chamber. An exhaust pipe is connected to the left side of the upper surface of the steam curing chamber. A rotating device is located inside the steam curing chamber. This utility model places the concrete pipe pile inside the steam curing chamber. The steam generator operates, delivering steam through the air inlet pipe into the chamber for steam curing. A rotating motor drives an electric chuck at the top of the chamber to rotate, simultaneously rotating the concrete pipe pile. This ensures the concrete pipe pile receives steam from all directions, resulting in uniform steam curing and effectively solving the problem of insufficient steam absorption in certain areas, thus significantly improving the quality of the concrete pipe pile.

[0004] However, during the use of this utility model, the high-temperature and high-humidity steam after heat exchange is usually directly discharged into the external environment, which increases the need for replenishment of fresh steam due to continuous discharge. This results in high energy consumption throughout the production process and low energy utilization, which cannot meet production needs. Therefore, an energy-saving steam curing device for the production of low-carbon concrete pipe piles is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an energy-saving steam curing device for the production of low-carbon concrete pipe piles. It has the advantage of effectively recovering and utilizing the waste heat in the exhaust steam, solving the problem that the high-temperature and high-humidity steam after heat exchange in existing steam curing devices is usually directly discharged into the external environment. This continuous discharge increases the demand for fresh steam replenishment, resulting in high energy consumption throughout the production process and low energy utilization, which fails to meet production needs.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an energy-saving steam curing device for the production of low-carbon concrete pipe piles, comprising a steam curing chamber and a concrete pipe pile body disposed inside the steam curing chamber, wherein the top of the steam curing chamber is provided with a steam recovery mechanism capable of recovering and utilizing steam.

[0007] The steam recovery mechanism includes an installation box fixedly connected to the upper surface of the steam curing chamber. A liquid storage tank is fixedly connected inside the installation box. An annular heat exchange pipe is fixedly connected to the outer peripheral wall of the liquid storage tank. A connecting pipe is fixedly connected between the steam curing chamber and the annular heat exchange pipe. An exhaust pipe extending to the top of the installation box is fixedly connected to the top of the annular heat exchange pipe.

[0008] Furthermore, the liquid storage tank is equipped with cold water, and an inlet pipe extending to the top of the installation box is fixedly connected to the top of the liquid storage tank.

[0009] Furthermore, a steam generator is fixedly connected to the top of the steam curing chamber on the side away from the installation box, and a delivery pipe is fixedly connected to both the steam generator and the opposite side of the liquid storage tank.

[0010] Furthermore, a delivery pump that connects the two delivery pipes is fixedly connected to the top of the steam curing chamber, and a circulation pipe extending into the interior of the steam curing chamber is fixedly connected to the output end of the steam generator.

[0011] Furthermore, a jet seat is fixedly connected to the inner bottom wall of the steam curing chamber, and a steam nozzle is fixedly connected to the side of the jet seat near the concrete pipe pile body. The end of the circulation pipe away from the steam generator is fixedly connected to the jet seat.

[0012] Furthermore, a support positioning plate is slidably connected inside the steam curing chamber, and an arc-shaped groove adapted to the concrete pipe pile body is opened on the upper surface of the support positioning plate. A breathable mesh plate connected to the outside is fixedly connected inside the steam curing chamber.

[0013] Furthermore, positioning strips extending into the interior of the steam curing chamber are fixedly connected to both the left and right sides of the supporting positioning plate, and positioning grooves that match the positioning strips are opened on the inner wall of the steam curing chamber. A handle is fixedly connected to the front of the supporting positioning plate.

[0014] Compared with the prior art, this utility model provides an energy-saving steam curing device for the production of low-carbon concrete pipe piles, which has the following beneficial effects:

[0015] 1. This energy-saving steam curing device for the production of low-carbon concrete pipe piles uses a steam recovery mechanism to allow high-temperature waste steam discharged from the steam curing chamber to enter an annular heat exchange pipe surrounding the storage tank through a connecting pipe. During this process, the residual heat of the waste steam is fully absorbed by the cold water in the storage tank, and the cold water is preheated. The preheated water is then transported to the steam generator to produce fresh steam, which greatly reduces the energy required to heat room temperature water to the working temperature, forming a highly efficient internal energy cycle. This significantly reduces the energy consumption and operating costs of the entire steam curing process, meeting the requirements of low-carbon production.

[0016] 2. This energy-saving steam curing device for the production of low-carbon concrete pipe piles features a support positioning plate that slides smoothly within the steam curing chamber via the cooperation of positioning strips and positioning grooves. Combined with its arc-shaped grooves, it provides stable support and precise positioning for pipe piles of different specifications. The handle on the front makes it very convenient to pick up and put down workpieces. This device solves the problem that existing steam curing devices typically release high-temperature, high-humidity steam directly into the external environment after heat exchange, leading to continuous emissions that increase the need for fresh steam replenishment, resulting in high energy consumption throughout the production process and low energy utilization, failing to meet production demands. Attached Figure Description

[0017] Figure 1 This is a three-dimensional sectional view of the present invention;

[0018] Figure 2 This is a perspective view of the liquid storage tank of this utility model;

[0019] Figure 3 This is a perspective view of the jet mount of this utility model;

[0020] Figure 4 This is a perspective view of the support and positioning plate of this utility model.

[0021] In the diagram: 1. Steam curing chamber; 2. Concrete pipe pile body; 3. Installation box; 4. Liquid storage tank; 5. Annular heat exchange pipe; 6. Connecting pipe; 7. Exhaust pipe; 8. Steam generator; 9. Conveying pipe; 10. Liquid inlet pipe; 11. Circulation pipe; 12. Jet seat; 13. Steam nozzle; 14. Support positioning plate; 15. Breathable mesh plate; 16. Positioning strip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1 to 3 This embodiment provides an energy-saving steam curing device for the production of low-carbon concrete pipe piles, comprising a steam curing chamber 1 and a concrete pipe pile body 2 disposed inside the steam curing chamber 1. The top of the steam curing chamber 1 is provided with a steam recovery mechanism capable of recovering and utilizing steam. The steam recovery mechanism includes an installation box 3 fixedly connected to the upper surface of the steam curing chamber 1. A liquid storage tank 4 is fixedly connected inside the installation box 3. An annular heat exchange pipe 5 is fixedly connected to the outer peripheral wall of the liquid storage tank 4. A connecting pipe 6 is fixedly connected between the steam curing chamber 1 and the annular heat exchange pipe 5. An exhaust pipe 7 extending to the top of the installation box 3 is fixedly connected to the top of the annular heat exchange pipe 5.

[0024] Specifically, the storage tank 4 is equipped with cold water, and the top of the storage tank 4 is fixedly connected to an inlet pipe 10 extending to the top of the mounting box 3. The top of the steam curing box 1 is fixedly connected to a steam generator 8 on the side away from the mounting box 3. The steam generator 8 and the opposite side of the storage tank 4 are both fixedly connected to a delivery pipe 9.

[0025] It should be noted that a delivery pump that can connect the two delivery pipes 9 is fixedly connected to the top of the steam curing chamber 1. A circulation pipe 11 extending into the steam curing chamber 1 is fixedly connected to the output end of the steam generator 8. A jet seat 12 is fixedly connected to the inner bottom wall of the steam curing chamber 1. A steam nozzle 13 is fixedly connected to the side of the jet seat 12 near the concrete pipe pile body 2. The end of the circulation pipe 11 away from the steam generator 8 is fixedly connected to the jet seat 12. The end of the jet seat 12 away from the circulation pipe 11 is connected to the steam source, which can achieve the effect of dual steam delivery.

[0026] It should be noted that by supplementing the preheated water to the steam generator 8 through the delivery pump and delivery pipeline 9, the stability of the steam supply can be ensured. At the same time, the steam is sent into the steam curing chamber 1 through the jet seat 12 and the evenly distributed steam nozzles 13, providing a more constant and uniform curing environment in terms of temperature and humidity for the concrete pipe pile body 2.

[0027] Please see Figure 1 and Figure 4In this embodiment, a support positioning plate 14 is slidably connected inside the steam curing chamber 1. An arc-shaped groove adapted to the concrete pipe pile body 2 is opened on the upper surface of the support positioning plate 14. A breathable mesh plate 15 connected to the outside is fixedly connected inside the steam curing chamber 1. Positioning strips 16 extending into the steam curing chamber 1 are fixedly connected on both the left and right sides of the support positioning plate 14. Positioning grooves adapted to the positioning strips 16 are opened on the inner wall of the steam curing chamber 1. A handle is fixedly connected to the front of the support positioning plate 14.

[0028] Specifically, this sliding support positioning structure greatly optimizes the operation process. Operators can easily pull the support positioning plate 14 together with the concrete pipe pile body 2 on it out of the steam curing box 1 for filling or unloading by simply using the handle. This avoids the difficulties and safety risks of moving heavy pipe piles in a confined space and significantly improves work efficiency and convenience.

[0029] The working principle of the above embodiments is as follows:

[0030] The operator pulls the support positioning plate 14 out of the steam curing chamber 1 using the handle, hoists and places the concrete pipe pile body 2 into the arc-shaped groove of the support positioning plate 14, then pushes it back into the steam curing chamber 1 and closes the chamber door. The delivery pump is started to pump the preheated cold water in the storage tank 4 into the steam generator 8. The steam generator 8 generates high-temperature steam, which is transported through the circulation pipe 11 to the jet seat 12 at the bottom of the steam curing chamber 1. Finally, the steam is evenly sprayed out by the steam nozzle 13 to perform a ring-shaped curing of the concrete pipe pile body 2. After the heat exchange is completed, the waste steam with a reduced temperature enters the annular heat exchange pipe 5 through the connecting pipe 6 under the system pressure or the action of the auxiliary fan. When the waste steam flows through the annular heat exchange pipe 5, the residual heat contained in it is transferred to the cold water in the storage tank 4 through the pipe wall. The cold water absorbs the heat and its temperature rises, while the waste steam is condensed and cooled down, and finally becomes low-temperature waste gas and is discharged from the exhaust pipe 7.

[0031] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0032] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An energy-saving steam curing device for the production of low-carbon concrete pipe piles, comprising a steam curing chamber (1) and a concrete pipe pile body (2) disposed inside the steam curing chamber (1), characterized in that: The top of the steam curing chamber (1) is equipped with a steam recovery mechanism that can recover and reuse steam; The steam recovery mechanism includes an installation box (3) fixedly connected to the upper surface of the steam curing chamber (1). A liquid storage tank (4) is fixedly connected inside the installation box (3). An annular heat exchange pipe (5) is fixedly connected to the outer peripheral wall of the liquid storage tank (4). A connecting pipe (6) is fixedly connected between the steam curing chamber (1) and the annular heat exchange pipe (5). An exhaust pipe (7) extending to the top of the installation box (3) is fixedly connected to the top of the annular heat exchange pipe (5).

2. The energy-saving steam curing device for the production of low-carbon concrete pipe piles according to claim 1, characterized in that: The liquid storage tank (4) is equipped with cold water inside, and the top of the liquid storage tank (4) is fixedly connected to an inlet pipe (10) extending to the top of the mounting box (3).

3. The energy-saving steam curing device for the production of low-carbon concrete pipe piles according to claim 1, characterized in that: A steam generator (8) is fixedly connected to the top of the steam curing chamber (1) on the side away from the installation box (3), and a conveying pipe (9) is fixedly connected to the opposite side of the steam generator (8) and the liquid storage tank (4).

4. The energy-saving steam curing device for the production of low-carbon concrete pipe piles according to claim 3, characterized in that: The top of the steam curing chamber (1) is fixedly connected to a delivery pump that can connect two delivery pipes (9), and the output end of the steam generator (8) is fixedly connected to a circulation pipe (11) extending into the steam curing chamber (1).

5. An energy-saving steam curing device for the production of low-carbon concrete pipe piles according to claim 4, characterized in that: A jet seat (12) is fixedly connected to the inner bottom wall of the steam curing chamber (1). A steam nozzle (13) is fixedly connected to the side of the jet seat (12) near the concrete pipe pile body (2). The end of the circulation pipe (11) away from the steam generator (8) is fixedly connected to the jet seat (12).

6. The energy-saving steam curing device for the production of low-carbon concrete pipe piles according to claim 1, characterized in that: The steam curing chamber (1) is slidably connected to a support positioning plate (14). The upper surface of the support positioning plate (14) is provided with an arc-shaped groove that is compatible with the concrete pipe pile body (2). The steam curing chamber (1) is fixedly connected to a breathable mesh plate (15) that communicates with the outside.

7. An energy-saving steam curing device for the production of low-carbon concrete pipe piles according to claim 6, characterized in that: The left and right sides of the support positioning plate (14) are fixedly connected with positioning strips (16) extending into the steam curing chamber (1). The inner wall of the steam curing chamber (1) is provided with positioning grooves that are compatible with the positioning strips (16). The front of the support positioning plate (14) is fixedly connected with a handle.

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