Efficient energy-saving fabric setting machine

Abstract

The utility model discloses a kind of high-efficiency energy-saving fabric setting machine, including rack, setting on the setting box of rack, hot air providing device for providing hot air of setting box, and circulating reversing system.The utility model, by setting the side heat preservation cavity filled with heat storage brick and introducing the intelligent double-way reversing circulation system based on temperature sensing, can effectively solve the problem of high energy consumption in equipment starting stage, by intelligently distributing back to the bottom of box after the top high-temperature gas is buffered through heat storage brick, effectively solve the problem of uneven temperature in the box in stable operation stage:after reaching stable operation temperature, system automatically circulates high-temperature waste heat to the lower part of box, actively break natural temperature stratification, make hot field distribution more uniform, while improving fabric setting quality consistency, avoid the continuous energy consumption waste generated by local compensation heating.

Description

Technical Field

[0001] This utility model relates to the field of fabric production technology, and in particular to a high-efficiency and energy-saving fabric setting machine. Background Technology

[0002] As a key piece of equipment in textile finishing processes, fabric setting machines have seen continuous development in recent years. In order to further achieve energy conservation and consumption reduction, the industry has conducted many technological explorations in areas such as waste heat recovery from waste gas and optimization of heating elements, which has promoted the continuous development of technology in this field.

[0003] However, existing mainstream hot air circulation fabric setting machines still face some technical bottlenecks in practical applications. Firstly, during the equipment startup and preheating phase, a large amount of ambient air needs to be directly heated to the process temperature, resulting in concentrated energy consumption and low heating efficiency. Secondly, during stable operation, a significant temperature gradient forms inside the oven due to the natural upward movement of hot air, leading to uneven heating of the fabric. This not only affects the consistency of setting quality but also results in continuous energy loss due to the additional heating required to compensate for the lower temperature. Particularly noteworthy is the rigid approach to utilizing internal circulating waste heat in existing technologies. Whether simply exhausting preheated fresh air or simply drawing some hot air back into the oven, neither method dynamically and intelligently allocates and reuses the high-temperature waste heat based on the equipment's real-time thermal state (such as the temperature of the heat storage body and the operating stage). Therefore, the overall energy efficiency of the system still has considerable room for improvement.

[0004] Therefore, in view of the above-mentioned shortcomings in start-up energy consumption, temperature uniformity and intelligent utilization of waste heat, it is necessary to make innovative improvements and optimizations to the structure of the existing stenter to systematically improve its energy efficiency and process stability. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a highly efficient and energy-saving fabric setting machine.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-efficiency and energy-saving fabric setting machine, comprising a frame, a setting box mounted on the frame, a hot air supply device for supplying hot air to the setting box, and a circulation reversing system; The shaping box has a vertical side partition on each of its left and right sides, and the two side partitions and the corresponding inner side wall of the shaping box each form a heat preservation cavity. Each of the insulation cavities is filled with porous heat storage bricks, and the upper part of the side partition is provided with a suction hole that connects the top area of ​​the shaping box cavity with the interior of the insulation cavity. The circulating reversing system includes a support plate fixed inside the frame, a circulating air box fixed on the support plate, a drive motor, and fan blades. The drive motor is fixed below the support plate, and its output shaft passes through the bottom wall of the support plate and the circulating air box in sequence before extending into the interior of the circulating air box. The fan blades are fixedly connected to the end of the drive motor output shaft that extends into the interior of the circulating air box. The left and right side walls of the circulating air box are each connected to a suction pipe. The ends of the two suction pipes away from the circulating air box pass through the bottom plate of the shaping box and communicate with the interior of the two insulation cavities. The upper wall of the circulating air box is connected to a discharge pipe, and the end of the discharge pipe away from the circulating air box is connected to the inlet of an electrically controlled reversing valve. The electrically controlled reversing valve has two outlets. One outlet is connected to a high-temperature circulation pipe, with the end of the high-temperature circulation pipe away from the electrically controlled reversing valve passing upward through the base plate and communicating with the bottom area of ​​the inner cavity of the shaping box. The other outlet is connected to a low-temperature preheating pipe, with the end of the low-temperature preheating pipe away from the electrically controlled reversing valve connected to the air inlet channel of the hot air supply device. A temperature sensor is installed inside each of the insulation chambers, below the porous heat storage bricks.

[0007] The connection port between the suction pipe and the side wall of the circulating air box is at a lower level than the level of the fan blades inside the circulating air box.

[0008] The hot air supply device includes a hot air supply pipe, one end of which is fixedly connected to and communicates with the side wall of the shaping box.

[0009] The electrically controlled directional valve is a two-position three-way solenoid valve.

[0010] The porous heat storage brick is a honeycomb ceramic heat storage body.

[0011] It also includes a controller, the signal input terminal of which is electrically connected to the temperature sensor, and the output terminal of which is electrically connected to the control terminal of the electrically controlled directional valve. The controller controls the outlet switching of the electrically controlled directional valve according to the signal from the temperature sensor.

[0012] The controller has a preset first temperature threshold. When the temperature detected by the temperature sensor is lower than the first temperature threshold, the controller controls the electronically controlled reversing valve to connect the discharge pipe and the low-temperature preheating pipe.

[0013] The controller also has a preset second temperature threshold that is higher than the first temperature threshold. When the temperature detected by the temperature sensor is higher than the second temperature threshold, the controller controls the electronically controlled reversing valve to connect the discharge pipe and the high-temperature circulation pipe.

[0014] The air intake holes on the side partition are multiple strip-shaped holes or round holes evenly distributed along the length of the shaping box.

[0015] This utility model has the following beneficial effects: 1. By setting up a side insulation cavity filled with heat storage bricks and introducing an intelligent dual-path reversing circulation system based on temperature sensing, the problem of high energy consumption during the equipment start-up phase can be effectively solved: During start-up preheating, the system automatically directs the circulating low-temperature waste heat to the hot air supply device to preheat the fresh air, which significantly reduces the initial load of the main heating unit and achieves rapid start-up and initial energy saving.

[0016] 2. By intelligently distributing the high-temperature gas at the top back to the bottom of the chamber after being buffered by the heat storage bricks, the problem of uneven temperature inside the chamber during the stable operation phase is effectively solved: After reaching the stable operating temperature, the system automatically forces the high-temperature waste heat to circulate to the bottom of the chamber, actively breaking the natural temperature stratification and making the heat field distribution more uniform. This not only improves the consistency of fabric shaping quality but also avoids the continuous performance waste caused by local compensation heating. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial cross-sectional schematic diagram of the internal structure of the shaping box of this utility model; Figure 3 This is a partial cross-sectional view of the internal structure of the circulating air box of this utility model.

[0018] Legend: 1. Frame; 2. Shaping box; 3. Hot air supply pipe; 4. Low temperature preheating pipe; 5. Base plate; 6. Side partition; 601. Air intake hole; 7. Insulation cavity; 8. Porous heat storage brick; 9. Temperature sensor; 10. Circulating air box; 11. Intake pipe; 12. Exhaust pipe; 13. Electrically controlled reversing valve; 14. High temperature circulation pipe; 15. Motor; 16. Fan blade; 17. Support plate. Detailed Implementation

[0019] 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.

[0020] Reference Figures 1 to 3 The specific structure of this high-efficiency and energy-saving fabric setting machine is as follows.

[0021] Construction of core architecture and heat recovery cycle system To achieve efficient recovery and intelligent utilization of waste heat inside the fabric setting machine, this invention includes a frame 1, a setting chamber 2 mounted on the frame 1, a hot air supply device for providing hot air to the setting chamber 2, and a circulation reversing system. A vertical side partition 6 is provided on each of the left and right sides inside the setting chamber 2, forming an independent insulation cavity 7 between the two side partitions 6 and the corresponding inner sidewalls of the setting chamber 2. Each insulation cavity 7 is filled with porous heat storage bricks 8. Multiple suction holes 601, evenly distributed along the length of the setting chamber 2, are provided on the upper part of the side partitions 6, connecting the high-temperature area at the top of the setting chamber 2 with the interior of the insulation cavity 7. Through this structure, when a natural temperature gradient of upper heating and lower cooling is formed inside the setting chamber 2, the high-temperature gas accumulated at the top can be effectively guided to the insulation cavities 7 on both sides through the suction holes 601, creating conditions for subsequent waste heat recovery and distribution.

[0022] Establishment of Circulatory Dynamics and Gas Transport Pathways To transport and distribute the gas collected in the insulation chamber 7, a circulation reversing system provides power and establishes a defined transport path. This system includes a support plate 17 fixed within the frame 1, a circulating air box 10 fixed to the support plate 17, a drive motor 15, and fan blades 16. The drive motor 15 is fixed below the support plate 17, and its output shaft extends upwards through the support plate 17 and the bottom wall of the circulating air box 10 before entering the interior of the circulating air box 10. The fan blades 16 are fixedly connected to the end of the output shaft of the drive motor 15. A suction pipe 11 is connected to each of the left and right side walls of the circulating air box 10. The ends of the two suction pipes 11 away from the circulating air box 10 pass through the bottom plate 5 of the shaping box 2 and communicate with the interior of the two insulation chambers 7. A discharge pipe 12 is connected to the upper wall of the circulating air box 10. Through the above structure, when the drive motor 15 drives the fan blade 16 to rotate, a negative pressure is generated in the circulating air box 10. This continuously draws the gas from the two insulation chambers 7 through the suction pipe 11 and discharges it through the discharge pipe 12, providing stable power for the entire circulation. In particular, the connection port between the suction pipe 11 and the side wall of the circulating air box 10 is set at a lower level than the height of the fan blade 16. This design helps prevent condensate or impurities from accumulating in low-lying areas of the pipeline and being directly sucked into the fan, thus improving the reliability of the system operation.

[0023] Intelligent switching structure for heat distribution paths To address the varying waste heat utilization requirements during different operational phases of the equipment, such as low-temperature startup and high-temperature steady-state, this invention incorporates an intelligently switchable distribution path. The end of the discharge pipe 12 furthest from the circulating air box 10 is connected to the inlet of an electrically controlled reversing valve 13. This electrically controlled reversing valve 13 is preferably a two-position three-way solenoid valve with two outlets. One outlet is connected to a high-temperature circulating pipe 14, which passes upwards through the base plate 5 and communicates with the bottom area of ​​the inner cavity of the shaping box 2; the other outlet is connected to a low-temperature preheating pipe 4, which connects to the air inlet channel of the hot air supply device. The hot air supply device specifically includes a hot air supply pipe 3, one end of which is fixedly connected and communicates with the side wall of the shaping box 2, used to supply heated air into the box. Through this structure, the electrically controlled reversing valve 13, as a core distribution node, can selectively guide the circulating gas to two different subsequent paths according to instructions: one is to return it to the bottom of the shaping box 2 via the high-temperature circulating pipe 14, and the other is to send it to the front end of the hot air supply device via the low-temperature preheating pipe 4.

[0024] Intelligent control and collaborative working mechanism To achieve automatic and precise control based on the real-time thermal status of the system, this invention also includes a controller. A temperature sensor 9 is installed inside each insulation cavity 7, below the porous heat storage brick 8. The controller's signal input is electrically connected to these two temperature sensors 9, and its output is electrically connected to the control terminal of the electrically controlled reversing valve 13. The controller has preset temperature thresholds. When the temperature detected by the temperature sensor 9 is lower than the preset first temperature threshold (this usually occurs during the equipment startup preheating stage), it indicates that the heat storage brick 8 and the circulating gas itself have limited heat. The controller then controls the electrically controlled reversing valve 13 to switch to a state connecting the discharge pipe 12 and the low-temperature preheating pipe 4. After the equipment has been running for a period of time, when the temperature detected by the temperature sensor 9 is higher than the preset second temperature threshold (which is equal to or higher than the first temperature threshold), it indicates that the system has entered a high-temperature stable state, and the heat storage brick 8 has stored sufficient heat. The controller then controls the electrically controlled reversing valve 13 to switch to a state connecting the discharge pipe 12 and the high-temperature circulation pipe 14. Through the above control logic, the controller of this utility model dynamically commands the action of the electronically controlled directional valve 13 based on the real-time information fed back by the temperature sensor 9, thereby realizing the intelligent switching of the working mode of the entire system.

[0025] In operation, the hot air supply device delivers hot air into the shaping box 2 through the hot air supply pipe 3 to shape the fabric. Simultaneously, the circulation reversing system is activated. The drive motor 15 rotates the fan blades 16, drawing the gas from the top of the shaping box 2, which enters the insulation chambers 7 on both sides through the suction hole 601, into the circulating air box 10 through the suction pipe 11, and then pumping it out through the discharge pipe 12. As the pumped gas flows through the insulation chamber 7, it exchanges heat with the porous heat storage bricks 8. Crucially, the final destination of this gas is determined by an intelligent control system based on the signal from the temperature sensor 9. Initially, due to the low temperature, the gas is guided through the low-temperature preheating pipe 4 to preheat the fresh air entering the hot air supply device, thereby reducing the main heating load and achieving rapid start-up and energy saving. Once the system stabilizes and the temperature rises, the gas is switched to be directly returned to the bottom of the shaping box 2 through the high-temperature circulation pipe 14. This high-temperature gas flow from the top, introduced from the bottom, effectively breaks up the temperature stratification caused by the natural rise of hot air within the chamber, forcing the formation of a more uniform thermal field. This not only improves the uniformity of fabric shaping quality but also avoids overheating to compensate for the low temperature at the bottom, achieving energy savings during operation. The porous heat storage bricks 8 filled in the insulation cavity 7 act as a "thermal buffer" in this process, helping to stabilize the airflow temperature and releasing stored heat during short shutdowns to assist in system insulation.

[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency and energy-saving fabric setting machine, characterized in that: Includes a frame (1), a shaping box (2) mounted on the frame (1), a hot air supply device for supplying hot air to the shaping box (2), and a circulation reversing system; The shaping box (2) has a vertical side partition (6) on each of its left and right sides, and the two side partitions (6) and the corresponding inner side wall of the shaping box (2) form a heat preservation cavity (7). Each of the insulation cavities (7) is filled with porous heat storage bricks (8), and the upper part of the side partition (6) is provided with a suction hole (601) that connects the top area of ​​the inner cavity of the shaping box (2) with the inside of the insulation cavity (7). The circulating reversing system includes a support plate (17) fixed inside the frame (1), a circulating air box (10) fixed on the support plate (17), a drive motor (15) and a fan blade (16). The drive motor (15) is fixed below the support plate (17), and its output shaft passes through the bottom wall of the support plate (17) and the circulating air box (10) in sequence and then extends into the interior of the circulating air box (10). The fan blade (16) is fixedly connected to one end of the output shaft of the drive motor (15) that extends into the interior of the circulating air box (10). The left and right side walls of the circulating air box (10) are respectively connected to a suction pipe (11). The ends of the two suction pipes (11) away from the circulating air box (10) pass through the bottom plate (5) of the shaping box (2) and communicate with the interior of the two heat preservation chambers (7). The upper wall of the circulating air box (10) is connected to a discharge pipe (12), and the end of the discharge pipe (12) away from the circulating air box (10) is connected to the inlet of an electrically controlled reversing valve (13); The electrically controlled reversing valve (13) has two outlets. One outlet is connected to a high-temperature circulation pipe (14), the end of which is away from the electrically controlled reversing valve (13) passes upward through the base plate (5) and communicates with the bottom area of ​​the inner cavity of the shaping box (2). The other outlet is connected to a low-temperature preheating pipe (4), the end of which is away from the electrically controlled reversing valve (13) is connected to the air inlet channel of the hot air supply device. A temperature sensor (9) is provided inside each of the insulation cavities (7) and below the porous heat storage brick (8).

2. The high-efficiency and energy-saving fabric setting machine according to claim 1, characterized in that: The connection port between the suction pipe (11) and the side wall of the circulating air box (10) is at a lower level than the level of the fan blade (16) inside the circulating air box (10).

3. The high-efficiency and energy-saving fabric setting machine according to claim 1, characterized in that: The hot air supply device includes a hot air supply pipe (3), one end of which is fixedly connected to and communicates with the side wall of the shaping box (2).

4. The high-efficiency and energy-saving fabric setting machine according to claim 1, characterized in that: The electrically controlled directional valve (13) is a two-position three-way solenoid valve.

5. The high-efficiency and energy-saving fabric setting machine according to claim 1, characterized in that: The porous heat storage brick (8) is a honeycomb ceramic heat storage body.

6. The high-efficiency and energy-saving fabric setting machine according to claim 1, characterized in that: It also includes a controller, the signal input terminal of which is electrically connected to the temperature sensor (9), and the output terminal of which is electrically connected to the control terminal of the electrically controlled directional valve (13). The controller controls the outlet switching of the electrically controlled directional valve (13) according to the signal of the temperature sensor (9).

7. The high-efficiency and energy-saving fabric setting machine according to claim 6, characterized in that: The controller has a preset first temperature threshold. When the temperature detected by the temperature sensor (9) is lower than the first temperature threshold, the controller controls the electronically controlled reversing valve (13) to connect the discharge pipe (12) and the low-temperature preheating pipe (4).

8. The high-efficiency and energy-saving fabric setting machine according to claim 7, characterized in that: The controller also has a preset second temperature threshold that is higher than the first temperature threshold. When the temperature detected by the temperature sensor (9) is higher than the second temperature threshold, the controller controls the electronically controlled reversing valve (13) to connect the discharge pipe (12) and the high-temperature circulation pipe (14).

9. The high-efficiency and energy-saving fabric setting machine according to claim 1, characterized in that: The air intake holes (601) on the side partition (6) are multiple strip-shaped holes or round holes evenly distributed along the length of the shaping box (2).

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