A step-by-step temperature-lowering steam pressure curing adjusting device

Abstract

The utility model relates to a kind of steam pressure maintenance adjusting devices of step-by-step temperature reduction, belong to concrete slab maintenance technical field, including sealed box, rotating sealing door is installed on sealed box body, the placing plate for placing concrete slab is evenly installed on sealed box inner wall, sealed box inner wall is installed with cooling pipeline, cooling pipeline is located below placing plate, cold water inlet pipe and cold water outlet pipe are installed on cooling pipeline, water inlet joint and water outlet joint are respectively installed at one end of cold water inlet pipe and cold water outlet pipe, rotating flow valve is installed on cold water inlet pipe and cold water outlet pipe, air inlet pipe is fixedly inserted in the top of sealed box, steam joint and rotating gas valve are fixedly installed on air inlet pipe, mounting strip block is fixedly installed in the top of sealed box, the utility model can synchronously or separately adjust rotating flow valve and rotating gas valve, realize step-by-step accurate cooling, satisfy different maintenance stage demand, effectively improve concrete slab maintenance quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of concrete slab curing technology, and in particular to an autoclaving adjustment device with progressively decreasing temperature. Background Technology

[0002] Autoclaving of concrete slabs is a technique that promotes concrete hardening through a high-pressure, high-temperature steam environment. By accelerating the cement hydration reaction through a closed autoclave, concrete slabs achieve high strength in a short time while significantly reducing drying shrinkage and improving durability. Autoclaving requires specialized autoclave equipment and strict control of temperature, pressure, and time parameters. It is suitable for precast components, high-strength concrete, and other engineering applications, and is a key technology for improving concrete performance. However, existing autoclaving devices typically stop the steam supply and directly cool the concrete with water during the cooling process. This can cause thermal stress due to the rapid surface shrinkage and internal high-temperature expansion of the concrete slab, leading to cracks, inhibiting cement hydration and causing strength loss. The resulting curing quality is poor, and the process has certain drawbacks.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] To overcome the technical defects of the existing technology, this utility model provides a step-by-step cooling autoclaving adjustment device, which can simultaneously or separately adjust the rotating flow valve and the rotating gas valve to achieve the effect of step-by-step precise cooling, meet the needs of different curing stages, and effectively improve the curing quality and efficiency of concrete slabs.

[0005] The technical solution adopted by this utility model is as follows: It includes a sealed box, on which a rotating sealing door is installed; placement plates for placing concrete slabs are evenly installed on the inner wall of the sealed box; a cooling pipe is installed on the inner wall of the sealed box, located below the placement plates; a cold water inlet pipe and a cold water outlet pipe are installed on the cooling pipe; an inlet connector and an outlet connector are respectively installed at one end of the cold water inlet pipe and the cold water outlet pipe; a rotating flow valve is installed on both the cold water inlet pipe and the cold water outlet pipe; an air inlet pipe is fixedly inserted into the top of the sealed box; a steam connector and a rotating gas valve are fixedly installed on the air inlet pipe; an installation strip is fixedly installed on the top of the sealed box; a limit groove is formed on the installation strip; a movable toggle adjustment component is installed in the limit groove; one end of the movable toggle adjustment component is fitted and connected to the rotating flow valve and the rotating gas valve.

[0006] Preferably, in order to allow steam and cold air to pass through the placement plate and over the bottom of the concrete slab via the vent holes, the placement plate is provided with vent holes evenly distributed.

[0007] Preferably, in order to enable the drive threaded rod to rotate and the rotary joint to rotate in the limiting slide groove by controlling the micro motor to turn on, the movable toggle adjustment assembly includes the micro motor and the drive threaded rod. The micro motor is fixed on the inner wall of one end of the limiting slide groove, and the drive threaded rod is rotatably mounted on the inner wall of the other end of the limiting slide groove through the rotary joint. One end of the drive threaded rod is fixedly connected to the output shaft of the micro motor.

[0008] Preferably, in order to enable the threaded slider to slide in the limiting groove by controlling the rotation of the drive threaded rod, the threaded slider is mounted on the drive threaded rod, and the threaded slider is slidably engaged in the limiting groove.

[0009] Preferably, in order for the threaded slider to move the movable strip via the serpentine connecting rod, the serpentine connecting rod is fixedly installed on the threaded slider, and the movable strip is fixedly installed at one end of the serpentine connecting rod.

[0010] Preferably, in order to enable the friction rubber strip to move synchronously with the moving plate, the friction rubber strip is fixedly installed on the side wall of the moving plate.

[0011] Preferably, in order to control the flow rate by controlling the movement of the friction rubber strip, thereby enabling the rotary flow valve and the rotary gas valve to rotate, the sidewall of the friction rubber strip is fitted and connected to the rotary flow valve and the rotary gas valve for controlling the rotary flow valve and the rotary gas valve.

[0012] Preferably, in order to gradually reduce the amount of steam entering the sealed box by controlling the rotation of the rotary flow valve and the rotary gas valve, the rotary flow valve and the rotary gas valve rotate in the same direction, increasing the cold water flow and decreasing the steam flow.

[0013] The beneficial effects of this utility model are: by using a cooling pipe in conjunction with cold water inlet and outlet pipes and a rotating flow valve, the flow rate of cold water can be flexibly controlled; the steam flow rate can be adjusted by the air inlet pipe and the rotating gas valve; and by using a movable toggle adjustment component, the rotating flow valve and the rotating gas valve can be adjusted synchronously or separately to achieve precise cooling in stages, meet the needs of different curing stages, and effectively improve the quality and efficiency of concrete slab curing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the placement plate of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the cold water inlet pipe and the cold water outlet pipe and the cooling pipe of this utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the movable toggle adjustment component of this utility model on the mounting block;

[0018] Figure 5 This is a schematic diagram of the structure of the movable toggle adjustment component of this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Sealed box; 2. Rotating sealing door; 3. Placement plate; 4. Cooling pipe; 5. Cold water inlet pipe; 6. Cold water outlet pipe; 7. Water inlet connector; 8. Water outlet connector; 9. Rotating flow valve; 10. Air inlet pipe; 11. Steam connector; 12. Rotating gas valve; 13. Mounting block; 14. Movable toggle adjustment assembly; 1401. Micro motor; 1402. Drive threaded rod; 1403. Rotating joint; 1404. Threaded slider; 1405. Serpentine connecting rod; 1406. Moving strip; 1407. Friction rubber strip. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1-5As shown, this embodiment provides a step-down autoclaving adjustment device, including a sealed box 1, a rotating sealing door 2 installed on the sealed box 1, and placement plates 3 for placing concrete slabs evenly installed on the inner wall of the sealed box 1. Ventilation holes are evenly distributed on the placement plates 3. A cooling pipe 4 is installed on the inner wall of the sealed box 1, located below the placement plates 3. A cold water inlet pipe 5 and a cold water outlet pipe 6 are installed on the cooling pipe 4. One end of the cold water inlet pipe 5 and the cold water outlet pipe 6 are respectively equipped with a water inlet connector 7 and a water outlet connector 8. Rotary flow valves 9 are installed on both the cold water outlet pipe 6 and the cold water outlet pipe 5. An air inlet pipe 10 is fixedly connected to the top of the sealed housing 1. A steam connector 11 and a rotary gas valve 12 are fixedly installed on the air inlet pipe 10. An installation block 13 is fixedly installed on the top of the sealed housing 1. A limit groove is provided on the installation block 13, and a movable toggle adjustment component 14 is installed in the limit groove. One end of the movable toggle adjustment component 14 is fitted and connected to the rotary flow valve 9 and the rotary gas valve 12. In use, the concrete slabs are first evenly placed on the placement plate 3 inside the sealed housing 1. The rotary sealing door 2 is closed, and steam is connected through the steam connector 11 on the air inlet pipe 10. The rotary gas valve 12 is adjusted to control the steam flow for autoclaving. After curing, the inlet connector 7 of the cold water inlet pipe 5 is connected to the cold water source, and the outlet connector 8 of the cold water outlet pipe 6 is connected to the drain pipe. The rotary flow valve 9 is adjusted to control the cold water flow. Using the movable toggle adjustment component 14 in the upper limit slide of the mounting block 13, the rotary flow valve 9 and the rotary gas valve 12 can be adjusted simultaneously or separately. According to the needs of the curing stage, while gradually increasing the cold water flow, the amount of steam can be gradually reduced to achieve step-by-step cooling. After curing is completed, the relevant valves are closed, the rotary sealing door 2 is opened, and the concrete slab is removed.

[0022] As a technical optimization of this utility model, as shown in Figure 5, the movable toggle adjustment assembly 14 includes a micro motor 1401 and a drive threaded rod 1402. The micro motor 1401 is fixed on the inner wall of one end of the limiting slide groove, and the drive threaded rod 1402 is rotatably mounted on the inner wall of the other end of the limiting slide groove through a rotary joint 1403. One end of the drive threaded rod 1402 is fixedly connected to the output shaft of the micro motor 1401. A threaded slider 1404 is mounted on the drive threaded rod 1402, and the threaded slider 1404 is slidably engaged in the limiting slide groove. A serpentine connecting rod is fixedly mounted on the threaded slider 1404. The connecting rod 1405 has a movable strip 1406 fixedly installed at one end. A friction rubber strip 1407 is fixedly installed on the side wall of the movable strip 1406. The side wall of the friction rubber strip 1407 is in close contact with the rotary flow valve 9 and the rotary gas valve 12, and is used to control the rotary flow valve 9 and the rotary gas valve 12. The rotary flow valve 9 and the rotary gas valve 12 rotate in the same direction, increasing the cold water flow and decreasing the steam flow. When using the movable toggle adjustment component 14, the micro motor 1401 fixed at one end of the limit slide groove is started first, and its output shaft drives the drive threaded rod 1402 to rotate. Since the threaded slider 1404 is threadedly connected to the drive threaded rod 1402 and is slidably engaged in the limit slide groove, it will move smoothly along the limit slide groove. When the threaded slider 1404 moves, it drives the moving strip 1406 to move synchronously via the serpentine connecting rod 1405. The friction rubber strip 1407 on the side wall of the moving strip 1406 is always in close contact with the rotating flow valve 9 and the rotating gas valve 12. Since they rotate in the same direction, when the moving strip 1406 drives the friction rubber strip 1407 to push the valve to rotate, the cold water flow increases and the steam flow decreases accordingly, thereby achieving precise control of step-by-step cooling.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. A step-by-step temperature reduction autoclave curing adjustment device, comprising a sealed box body (1), a rotating sealing door (2) is installed on the sealed box body (1), characterized in that: The inner wall of the sealed box (1) is uniformly equipped with placement plates (3) for placing concrete slabs. The inner wall of the sealed box (1) is equipped with cooling pipes (4). The cooling pipes (4) are located below the placement plates (3). The cooling pipes (4) are equipped with cold water inlet pipes (5) and cold water outlet pipes (6). One end of the cold water inlet pipes (5) and the cold water outlet pipes (6) is equipped with a water inlet connector (7) and a water outlet connector (8), respectively. Both the cold water inlet pipes (5) and the cold water outlet pipes (6) are equipped with rotating flow meters. The valve (9) is fixedly connected to the top of the sealed housing (1) with an air inlet pipe (10). A steam connector (11) and a rotary gas valve (12) are fixedly installed on the air inlet pipe (10). An installation block (13) is fixedly installed on the top of the sealed housing (1). A limit groove is opened on the installation block (13). A movable toggle adjustment component (14) is installed in the limit groove. One end of the movable toggle adjustment component (14) is fitted and connected to the rotary flow valve (9) and the rotary gas valve (12).

2. The stepwise temperature reduction autoclave curing fixture of claim 1, wherein: The placement plate (3) has evenly spaced ventilation holes.

3. The stepwise temperature reduction autoclave curing fixture of claim 1, wherein: The movable toggle adjustment assembly (14) includes a micro motor (1401) and a drive threaded rod (1402). The micro motor (1401) is fixed on the inner wall of one end of the limiting slide groove, and the drive threaded rod (1402) is rotatably mounted on the inner wall of the other end of the limiting slide groove through a rotating joint (1403). One end of the drive threaded rod (1402) is fixedly connected to the output shaft of the micro motor (1401).

4. The stepwise temperature reduction autoclave curing fixture of claim 3, wherein: A threaded slider (1404) is installed on the drive threaded rod (1402), and the threaded slider (1404) is slidably engaged in the limiting groove.

5. The stepwise temperature reduction autoclave curing fixture of claim 4, wherein: A serpentine connecting rod (1405) is fixedly installed on the threaded slider (1404), and a movable strip plate (1406) is fixedly installed at one end of the serpentine connecting rod (1405).

6. The stepwise temperature reduction autoclave curing fixture of claim 5, wherein: A friction rubber strip (1407) is fixedly installed on the side wall of the movable strip (1406).

7. The stepwise temperature reduction autoclave curing fixture of claim 6, wherein: The sidewall of the friction rubber strip (1407) is fitted and connected to the rotary flow valve (9) and the rotary gas valve (12) for controlling the rotary flow valve (9) and the rotary gas valve (12).

8. The stepwise temperature reduction autoclave curing fixture of claim 7, wherein: The rotating flow valve (9) and the rotating gas valve (12) rotate in the same direction, increasing the cold water flow and decreasing the steam flow.

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