An intelligent temperature control device for secondary curing of high turnout sleeper after demolding

Abstract

The utility model provides a kind of for high turnout sleeper post-moulding secondary maintenance intelligent temperature control device, it is related to turnout sleeper spray maintenance temperature control technical field, the intelligent temperature and humidity regulation of several high turnout sleepers in the secondary maintenance box in the present application can significantly improve maintenance quality, while water mist spray coverage is wide, cooperate with high placement to make the secondary spray maintenance effect of turnout sleeper post-moulding substantially improve, compared with the original geotextile covering mode can maximum limit reduce the influence of ambient temperature on maintenance quality, the pass rate of turnout sleeper after production is significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of temperature control technology for spray curing of turnout sleepers, and more specifically, to an intelligent temperature control device for secondary curing of turnout sleepers after demolding. Background Technology

[0002] High-strength turnout sleepers are special high-strength sleepers designed for railway turnout areas. They are designed to withstand the complex mechanical environment and special loads of the turnout area. Currently, high-strength turnout sleepers require secondary spray curing after molding and demolding. The significance of this secondary curing is as follows: 1. Intensity development: Prolonging the hydration reaction time; 2. Crack control: Reduces capillary formation, lowers shrinkage stress by 30%-50%, and significantly inhibits drying shrinkage cracks; 3. Improved durability: Increases the density of concrete and enhances its impermeability. 4. Structural stability: Ensure the long-term coordinated stress-bearing capacity of the turnout sleeper and the turnout bed, extending service life.

[0003] Currently, geotextile is generally used to cover the surface of turnout sleepers during secondary spray curing. However, this is easily affected by the surrounding temperature. Specifically, after the geotextile is covered, the sprayed water dries quickly in high-temperature environments, which can cause cracks on the concrete surface. After the geotextile is covered, the sprayed water may freeze in low-temperature environments, causing internal expansion stress in the concrete and resulting in irreversible micro-cracks. In summary, the existing turnout sleepers have the above-mentioned problems that urgently need to be solved during the secondary spraying maintenance process. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose an intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding.

[0005] The technical solution adopted by this utility model to solve its technical problem is: An intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding includes a secondary curing box. The side-opening door is mounted on the secondary curing box; The spray system is installed inside the secondary curing chamber; The temperature sensor is installed on the spray assembly; The air inlet pipe connects to the inside of the secondary curing box, and the top of the air inlet pipe is connected to a T-shaped pipe. The remaining two pipes of the T-shaped pipe are respectively connected to the air cooler and the air hoter fixed on the secondary curing box. The exhaust pipe is connected to the interior of the secondary curing box, and a pressure relief valve is installed on the exhaust pipe; Several rows of stainless steel columns and spray components are staggered, and the stainless steel columns are welded at equal intervals along the length of the bottom surface inside the secondary curing box. Each row includes several groups and each group includes two stainless steel columns.

[0006] Furthermore, the spray assembly includes a booster pump, a spray channel, a first branch pipe, a second branch pipe, a first atomizing nozzle, and a second atomizing nozzle. The booster pump is fixed on the secondary curing box and is connected to the spray channel fixed at the top of the secondary curing box. A temperature sensor is installed on the spray channel. Several first branch pipes and several second branch pipes are connected to the spray channel, and the first branch pipes and second branch pipes are staggered and each is laid along the length of the secondary curing box. The second branch pipes extend to the bottom area inside the secondary curing box. The first atomizing nozzle is connected to the first branch pipe; The second atomizing nozzle is connected to one end of the second branch pipe near the bottom of the secondary curing box, and the second atomizing nozzle is symmetrically arranged about the second branch pipe.

[0007] Furthermore, a humidity sensor is fixedly installed on one of the stainless steel columns, and a dehumidification device connected to the bottom area of ​​the secondary curing box is fixedly installed on the secondary curing box.

[0008] Furthermore, the side-opening door is equipped with a transparent observation window.

[0009] Furthermore, the inner wall of the secondary curing box is provided with a heat insulation board.

[0010] Furthermore, the second atomizing nozzle is staggered with the stainless steel column.

[0011] Compared with the prior art, the beneficial effects of this utility model are: The high turnout sleepers described in this application can significantly improve the maintenance quality under intelligent temperature and humidity control in the secondary curing box. At the same time, the water mist spraying coverage is wide, and the combination of elevated placement greatly improves the secondary spraying curing effect after the turnout sleepers are demolded. Compared with the original method of covering with geotextile, it can minimize the impact of the surrounding ambient temperature on the maintenance quality, and the pass rate of the turnout sleepers after production is significantly improved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of a transparent viewing window; Figure label: 1. Secondary curing chamber; 2. Side-opening door; 3. Spray assembly; 31. Booster pump; 32. Spray channel; 33. First branch pipe; 34. Second branch pipe; 35. First atomizing nozzle; 36. Second atomizing nozzle; 4. Temperature sensor; 5. Air inlet pipe; 6. T-connector; 7. Air cooler; 8. Hot air blower; 9. Exhaust pipe; 10. Pressure relief valve; 11. Stainless steel column; 12. Humidity sensor; 13. Dehumidification equipment; 14. Transparent observation window; 15. Thermal insulation board. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments: like Figure 1 and Figure 2 As shown, an intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding includes a secondary curing box 1. The side-opening door 2 is rotatably mounted on the secondary curing box 1 (specifically, the side-opening door 2 is provided with a transparent observation window 14 to facilitate observation of the internal curing conditions from the outside; the locking of the side-opening door 2 and the secondary curing box 1 can be achieved using existing technology, specifically magnetic adsorption (the secondary curing box 1 has a groove, a first magnet is provided in the groove, the side-opening door 2 is provided with a second magnet that cooperates with the first magnet, and a sealing element is provided on the inner edge of the side-opening door 2, which is not shown in the figure). Spraying assembly 3 is installed inside secondary curing box 1; Temperature sensor 4 is installed on spray assembly 3; The air inlet pipe 5 is connected to the interior of the secondary curing box 1 and the top of the air inlet pipe 5 is connected to a T-pipe 6. The remaining two pipes of the T-pipe 6 are respectively connected to the air cooler 7 and the hot air blower 8 fixed on the secondary curing box 1. Structure and working principle of evaporative air cooler 7: composition: 1. Evaporative cooling pad (evaporative filter element); 2. Water pump; 3. Axial / centrifugal fan; 4. Water circulation system (including water tank, filter screen (anti-clogging), drain valve).

[0014] Working principle: (1) Hot air is drawn in → (2) Passes through a wet curtain → (3) Water evaporates and absorbs heat (latent heat exchange) → (4) Air is output with a temperature drop of 4-12℃.

[0015] Structural composition and working principle of hot air blower 8; composition: 1. Heating element (heating tube / resistance wire); 2. High-temperature resistant centrifugal fan; Working principle: Current passes through the resistance wire to generate heat → a fan blows air through the heating element → hot air is output (the outlet air temperature is adjustable).

[0016] The exhaust pipe 9 is connected to the interior of the secondary curing box 1, and a pressure relief valve 10 (specifically, an automatic pressure relief valve 10) is installed on the exhaust pipe 9. The automatic pressure relief valve 10 consists of the following components: 1. Main valve The diaphragm structure is divided into upper and lower chambers: the lower chamber is the medium flow channel and the upper chamber is the control chamber, which drives the valve to open and close through the pressure difference. 2. Pilot valve (operational valve) A miniature pressure relief device, comprising a valve body, adjusting screw, spring, diaphragm, and other components, is used to sense system pressure and control the operation of the main valve. 3. Pressure regulating component Needle valve: Used to regulate and control flow in pipelines; Pressure gauge: Displays system pressure in real time.

[0017] Several rows of stainless steel columns 11 are staggered with the spray assembly 3, and the stainless steel columns 11 are welded at equal intervals along the length of the bottom surface inside the secondary curing box 1. Each row includes several groups and each group includes two stainless steel columns 11.

[0018] Further refinements of this utility model solution, such as... Figure 1 and Figure 2 As shown, the spray assembly 3 includes a booster pump 31, a spray channel 32, a first branch pipe 33, a second branch pipe 34, a first atomizing nozzle 35, and a second atomizing nozzle 36. The booster pump 31 is fixed on the secondary curing box 1, and the booster pump 31 is connected to the spray channel 32 fixed on the top of the secondary curing box 1. A temperature sensor 4 is installed on the spray channel 32. Several first branch pipes 33 and several second branch pipes 34 are connected to the spray channel 32, and the first branch pipes 33 and the second branch pipes 34 are staggered and each is laid along the length of the secondary curing box 1. The second branch pipes 34 extend to the bottom area inside the secondary curing box 1. The first atomizing nozzle 35 is connected to the first branch pipe 33; The second atomizing nozzle 36 is connected to one end of the second branch pipe 34 near the bottom area of ​​the secondary curing box 1, and the second atomizing nozzle 36 is symmetrically arranged about the second branch pipe 34. To ensure that the water mist can effectively spray and cover the bottom surface of the turnout sleeper, further optimizations to the above-described embodiments are possible, such as... Figure 1 As shown, the second atomizing nozzle 36 and the stainless steel column 11 are staggered.

[0019] To further intelligently regulate the humidity within the secondary curing chamber 1, the above-described embodiments are further optimized, such as... Figure 1 As shown, a humidity sensor 12 is fixed on one of the stainless steel columns 11, and a dehumidification device 13 connected to the bottom area of ​​the secondary curing box 1 is fixed on the secondary curing box 1. The dehumidification device 13 is a dehumidifier, which is existing technology and will not be improved. Its structure and operating principle are as follows: I. Core Structure 1. Compressor system: The refrigerant circulation is driven by a compressor; 2. Heat exchange system: includes an evaporator (low-temperature component) and a condenser (high-temperature component), connected by copper pipes; 3. Air handling system: fan system and filters.

[0020] II. Working Principle 1. Dehumidification stage: The fan draws in humid air, which then passes through a filter. Water droplets condense when air comes into contact with a low-temperature evaporator (where the refrigerant absorbs heat); Condensate collects in a water tank or drain pipe.

[0021] 2. Dry air treatment Dehydrated air is heated by a condenser; Dry air at a temperature close to room temperature is discharged.

[0022] To better achieve thermal insulation and reduce the impact of the external environment on the secondary curing chamber 1, further optimizations to the above-described embodiments are made, such as... Figure 1 As shown, the inner wall of the secondary curing box 1 is provided with a heat insulation board 15.

[0023] It should be noted that the booster pump 31, temperature sensor 4, air cooler 7, hot air blower 8, automatic pressure relief valve 10, humidity sensor 12, and dehumidification device 13 are all electrically connected to the controller, which is shown in the figure without a number.

[0024] The working process of this utility model: First, several turnout sleepers are transferred sequentially and placed one by one on the stainless steel column 11 at the bottom of the secondary curing box 1 (the effect after the turnout sleepers are placed is as shown in the instruction manual). Figure 1 As shown in the figure, the stainless steel column 11 can elevate the turnout sleeper, so that all surfaces of the turnout sleeper can be sprayed with water mist during the subsequent secondary spraying maintenance process, resulting in better maintenance effect; After all the turnout sleepers are placed, the side door 2 is closed. Then, the controller controls the operation of the temperature sensor 4 and the humidity sensor 12. If the temperature inside the secondary curing box 1 is higher than the preset value, the controller controls the cold air blower 7 to deliver cold air into the secondary curing box 1 so that the temperature is lowered to near the standard value range. Similarly, if the temperature inside the secondary curing box 1 is lower than the preset value, the controller controls the hot air blower 8 to deliver warm air into the secondary curing box 1 so that the temperature is raised to near the standard value range. During the temperature regulation process, if the air pressure inside the secondary curing box 1 is too high, the automatic pressure relief valve 10 can automatically release the pressure to keep the pressure balanced. When the temperature inside the secondary curing box 1 is intelligently regulated to the optimal curing value range, the regulation stops. At this time, due to the effect of the heat insulation board 15, a constant temperature environment can be created for the secondary curing of the turnout sleepers. In addition, the humidity sensor 12 can detect the humidity value in the secondary curing box 1 in real time. If the humidity value is lower than the preset value, water mist will be sprayed to increase the humidity to near the standard value range. If the humidity value is higher than the preset value, the controller will control the dehumidifier to operate and discharge some of the moisture to reduce the humidity to near the standard value range (the spray component 3 will stop working while reducing the humidity). In this way, a constant humidity environment can be created for the secondary curing of the sleeper. In summary, the intelligent temperature and humidity control within the secondary curing chamber 1 significantly improves the curing quality of the high-switcher sleepers. Furthermore, the wide coverage of the water mist spray, combined with the elevated placement, greatly enhances the secondary spray curing effect after sleeper demolding.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding, characterized in that, Includes a secondary curing box (1). The side-opening door (2) is rotated and set on the secondary curing box (1); The spray assembly (3) is installed inside the secondary curing box (1); Temperature sensor (4) is installed on spray assembly (3); The air inlet pipe (5) is connected to the interior of the secondary curing box (1), and the top of the air inlet pipe (5) is connected to a three-way pipe (6). The remaining two pipes of the three-way pipe (6) are respectively connected to the air cooler (7) and the hot air blower (8) fixed on the secondary curing box (1). The exhaust pipe (9) is connected to the interior of the secondary curing box (1), and a pressure relief valve (10) is installed on the exhaust pipe (9). Several rows of stainless steel columns (11) are staggered with the spray assembly (3), and the stainless steel columns (11) are welded at equal intervals along the length of the bottom surface inside the secondary curing box (1). Each row includes several groups and each group includes two stainless steel columns (11).

2. The intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding, as described in claim 1, is characterized in that... The spray assembly (3) includes a booster pump (31), a spray channel (32), a first branch pipe (33), a second branch pipe (34), a first atomizing nozzle (35), and a second atomizing nozzle (36). The booster pump (31) is fixed on the secondary curing box (1), and the booster pump (31) is connected to the spray channel (32) fixed on the top of the secondary curing box (1). A temperature sensor (4) is installed on the spray channel (32). Several first branch pipes (33) and several second branch pipes (34) are connected to the spray channel (32), and the first branch pipes (33) and the second branch pipes (34) are staggered and each is laid along the length of the secondary curing box (1). The second branch pipes (34) extend to the bottom area inside the secondary curing box (1). The first atomizing nozzle (35) is connected to the first branch pipe (33); The second atomizing nozzle (36) is connected to one end of the second branch pipe (34) near the bottom area of ​​the secondary curing box (1), and the second atomizing nozzle (36) is symmetrically arranged with respect to the second branch pipe (34).

3. The intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding, as described in claim 1, is characterized in that... A humidity sensor (12) is fixed on one of the stainless steel columns (11), and a dehumidification device (13) that connects to the bottom area of ​​the secondary curing box (1) is fixed on the secondary curing box (1).

4. The intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding, as described in claim 1, is characterized in that... A transparent observation window (14) is provided on the side door (2).

5. The intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding, as described in claim 1, is characterized in that... The inner wall of the secondary curing box (1) is provided with a heat insulation board (15).

6. The intelligent temperature control device for secondary curing of high-speed turnout sleepers after demolding, as described in claim 2, is characterized in that... The second atomizing nozzle (36) is staggered with the stainless steel column (11).

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