Low wind resistance printing machine hot air energy saving system

Abstract

The utility model discloses a kind of low wind resistance printing machine hot air energy-saving system, belong to the field of printing machine, and the system mainly includes drying oven, air heating assembly, air intake component, heat recovery component and exhaust component. The air heating assembly includes heating box, its internal electric heating assembly and air intake temperature detection component. Heating box air intake end is connected air intake pipe through flow guide pipe. The air intake pipe is set through heat recovery component, and exhaust component is equipped on heat recovery component;The air intake temperature detection component is automatically adjusted according to the temperature of the preheated airflow entering heating box, and the heating power of electric heating assembly. High-temperature exhaust gas discharged by exhaust component flows through heat recovery component, and its heat is transferred to fresh air intake flowing through heat recovery component, and the airflow after preheating enters heating box, and its temperature is sensed by air intake temperature detection component, so as to dynamically adjust the power of electric heating assembly. The system effectively recycles and utilizes drying waste gas waste heat, and significantly reduces electric heating energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of printing presses, and in particular to a low-resistance hot air energy-saving system for printing presses. Background Technology

[0002] In the printing industry, drying printed materials is a crucial step in the production process, typically employing hot air drying technology. Traditional hot air drying systems for printing presses generally suffer from high energy consumption, primarily because the high-temperature exhaust gases emitted after drying are usually directly released into the atmosphere, resulting in the ineffective recovery and utilization of the significant amount of heat energy contained within, thus causing secondary energy waste.

[0003] Although some devices can recover heat from exhaust gas, the electric heating elements used to heat the air usually operate at a constant power in actual use and cannot be dynamically adjusted according to the intake air temperature or actual drying needs, resulting in a large amount of energy being wasted on overheating.

[0004] With the deepening implementation of energy conservation and emission reduction policies and the increasingly urgent need for printing companies to reduce costs and increase efficiency, developing a hot air drying energy-saving system that can effectively recover waste gas heat energy, intelligently adjust heating power according to actual working conditions, and reduce system wind resistance has become an important development trend in the printing equipment field. Utility Model Content

[0005] This invention provides a low-resistance hot air energy-saving system for printing presses, which can solve the problem that traditional devices in the prior art cannot flexibly adjust the heating power according to the inlet air temperature, resulting in overheating and energy waste.

[0006] A low-resistance printing press hot air energy-saving system includes a drying chamber. An air heating component is installed on the drying chamber, and an air inlet component is installed on one side of the air heating component. The air heating component includes a heating chamber containing an electric heating component. An air inlet temperature detection component is installed in the heating chamber on one side of the electric heating component. A guide pipe is fixedly connected to the air inlet end of the heating chamber, and an air inlet pipe is fixedly connected to one end of the guide pipe. A heat recovery component is installed on one side of the heating chamber, and the air inlet pipe passes through the heat recovery component. An exhaust component is installed on the heat recovery component. The temperature detection component adjusts the heating power of the electric heating component according to the temperature of the preheated airflow entering the heating chamber, thereby reducing drying energy consumption.

[0007] As a preferred embodiment of this utility model, the electric heating assembly includes a mounting base fixedly mounted on a heating box, with multiple electric heating rods fixedly mounted on the bottom of the mounting base.

[0008] As a preferred technical solution of this utility model, a power supply is fixedly connected to the heating box on one side of the mounting base, a conductive valve is fixedly connected between the power supply and the heating box, a valve column is slidably arranged on the conductive valve, and a reset member is sleeved on the valve column.

[0009] As a preferred technical solution of this utility model, the air intake temperature detection component includes movable plates that are slidably disposed on both sides inside the heating box, a thermal element is fixedly connected between the movable plates, and a movable column is fixedly connected to the side of the movable plate away from the thermal element.

[0010] As a preferred embodiment of this utility model, the movable column is slidably connected to the side wall of the heating box, and a transmission arm is fixedly connected to the end of the movable column outside the heating box, with the transmission arm extending above the movable column.

[0011] As a preferred embodiment of the present invention, the heat recovery assembly further includes a heat exchange box filled with heat exchange fluid, and an inlet pipe is fixedly connected to the top of the heat exchange box.

[0012] As a preferred embodiment of this utility model, multiple air intake pipes are provided, and the air intake pipes pass through the heat exchange box and are fixedly connected to the air intake head at their ends.

[0013] As a preferred technical solution of this utility model, the internal shape of the air intake head is set as a tapered streamlined structure.

[0014] As a preferred technical solution of this utility model, the exhaust assembly includes an exhaust fan, which is fixedly installed on the drying box. The air inlet end of the exhaust fan is fixedly connected to a heat exchange exhaust pipe, which passes through the heat exchange box and extends into the drying box.

[0015] As a preferred technical solution of this utility model, the air inlet assembly includes an air inlet fan fixedly installed on the side wall of the heating box, the air inlet end of the air inlet fan is fixedly connected to an air inlet pipe, the air inlet pipe extends into the drying box and the end is fixedly connected to a drying head.

[0016] This invention offers the following advantages: The system integrates intelligent linkage control of a heat recovery component and a temperature detection component. The heat recovery component recovers waste heat from the drying exhaust gas to preheat the fresh air entering the heating chamber. The inlet air temperature detection component monitors the temperature of these preheated airflows in real time. Based on this monitored temperature, the system automatically adjusts the heating power of the electric heating component. When the preheated air temperature is high (indicating good heat recovery efficiency or high ambient temperature), the system automatically reduces the electric heating power; conversely, when the preheated air temperature is low, the heating power is increased. This dynamic power adjustment mechanism based on the actual preheating temperature avoids the energy waste caused by constant heating and directly reduces the total energy consumption of the drying process.

[0017] The heat recovery component allows heat energy from exhaust gases to be recovered and used to preheat intake air, improving the overall thermal efficiency of the system and reducing energy waste. The intake pipe passes through the heat recovery component, and the streamlined, tapered intake head optimizes the airflow path, effectively reducing airflow resistance within the system and consequently lowering the energy consumption of the drive fan. The temperature detection component automatically adjusts the heating power based on the preheating temperature, enabling intelligent control of system operating parameters and reducing the need for manual intervention. Attached Figure Description

[0018] Figure 1 A schematic diagram of a low-resistance printing press hot air energy-saving system provided by this utility model. Figure 1 ;

[0019] Figure 2 A schematic diagram of a low-resistance printing press hot air energy-saving system provided by this utility model. Figure 2 ;

[0020] Figure 3 A cross-sectional structural schematic diagram of a low-resistance printing press hot air energy-saving system provided by this utility model;

[0021] Figure 4 A schematic diagram of the internal structure of the heating box in a low-resistance printing press hot air energy-saving system provided by this utility model;

[0022] Figure 5 A top view of a low-resistance printing press hot air energy-saving system provided by this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Drying oven; 2. Air heating assembly; 201. Heating box; 202. Mounting base; 203. Air inlet fan; 204. Air inlet pipe; 205. Transmission arm; 206. Power supply; 207. Actuating rod; 208. Conductive valve; 209. Valve column; 210. Reset component; 211. Movable column; 212. Electric heating rod; 213. Movable plate; 214. Thermosensitive component; 215. Drying head; 3. Heat recovery assembly; 301. Heat exchange box; 302. Air inlet head; 303. Exhaust fan; 304. Heat exchange exhaust pipe; 305. Guide pipe; 306. Air inlet pipe; 307. Liquid inlet pipe; 308. Heat-conducting rod. Detailed Implementation

[0024] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0025] like Figures 1-5As shown in the figure, this utility model provides a low-resistance printing press hot air energy-saving system, including a drying chamber 1. An air heating component 2 is installed on the drying chamber 1, and an air inlet component is installed on one side of the air heating component 2. The air heating component 2 includes a heating box 201, an electric heating component is installed inside the heating box 201, and an air inlet temperature detection component is installed inside the heating box 201 on one side of the electric heating component. A guide pipe 305 is fixedly connected to the air inlet end of the heating box 201, and an air inlet pipe 306 is fixedly connected to one end of the guide pipe 305. A heat recovery component 3 is installed on one side of the heating box 201, and the air inlet pipe 306 passes through the heat recovery component 3. An exhaust component is installed on the heat recovery component 3. The temperature detection component adjusts the heating power of the electric heating component according to the temperature of the preheated airflow entering the heating box 201 to reduce drying energy consumption.

[0026] In actual use, the high-temperature exhaust gas discharged from the exhaust assembly passes through the heat recovery assembly 3, transferring its heat to the fresh intake air flowing through the heat recovery assembly 3. The preheated airflow enters the heating chamber 201, where its temperature is sensed by the intake air temperature detection assembly, thereby dynamically adjusting the power of the electric heating assembly. This system effectively recovers and utilizes the waste heat from the drying exhaust gas, significantly reducing the energy consumption of electric heating.

[0027] Please see Figures 1-4 In another embodiment of this utility model, the electric heating assembly includes a mounting base 202 fixedly mounted on the heating box 201, and an electric heating rod 212 fixedly mounted on the bottom of the mounting base 202, with multiple electric heating rods 212 provided.

[0028] A power supply 206 is fixedly connected to the heating box 201 on one side of the mounting base 202. A conductive valve 208 is fixedly connected between the power supply 206 and the heating box 201. A valve column 209 is slidably provided on the conductive valve 208. A reset piece 210 is sleeved on the valve column 209.

[0029] In actual use, when the valve column 209 moves upward, the conductive valve 208 is disconnected; when the valve column 209 moves downward, the conductive valve 208 is energized. In the energized state, the electric heating rod 212 can generate heat. When air passes through the electric heating rod 212, the flowing air can be heated.

[0030] See Figures 2-4 The intake air temperature detection component includes movable plates 213 that are slidably disposed on both sides inside the heating box 201. A thermal element 214 is fixedly connected between the movable plates 213. A movable column 211 is fixedly connected to the side of the movable plate 213 away from the thermal element 214. The thermal element 214 will gradually elongate when the temperature rises and shorten when the temperature drops.

[0031] The movable column 211 is slidably connected to the side wall of the heating box 201. The end of the movable column 211 outside the heating box 201 is fixedly connected to the transmission arm 205, which extends above the movable column 211. The bottom of the transmission arm 205 is fixedly connected to the moving rod 207. In the initial state, the thermal element 214 is in a low temperature state and has not elongated. The transmission arm 205 is located above the movable column 211, and the conductive valve 208 is energized. When the thermal element 214 is heated by hot air, its temperature will rise, and the thermal element 214 will expand. This will drive the transmission arm 205 at the end of the movable column 211 to move through the movable plate 213. The transmission arm 205 moves away from the valve column 209. Under the action of the reset member 210, the valve column 209 rises, and the conductive valve 208 will be de-energized. Then, the electric heating rod 212 at the corresponding position will no longer heat.

[0032] See Figures 1-3 The heat recovery assembly 3 also includes a heat exchange box 301, which is filled with heat exchange liquid. The top of the heat exchange box 301 is fixedly connected to the liquid inlet pipe 307, and the heat exchange box 301 is fixedly installed on the drying box 1.

[0033] Multiple air intake pipes 306 are provided, and each air intake pipe 306 passes through the heat exchange box 301 and is fixedly connected to an air intake head 302 at its end. The internal shape of the air intake head 302 is a tapered streamlined structure.

[0034] See Figures 1-2 The exhaust assembly includes an exhaust fan 303, which is fixedly mounted on the drying chamber 1. The air inlet of the exhaust fan 303 is fixedly connected to a heat exchange exhaust pipe 304. The heat exchange exhaust pipe 304 passes through the heat exchange box 301 and extends into the drying chamber 1. A heat-conducting rod 308 is fixedly connected through the heat exchange exhaust pipe 304 inside the heat exchange box 301.

[0035] See Figure 2 The air intake assembly includes an air intake fan 203 fixedly installed on the side wall of the heating box 201. The air intake end of the air intake fan 203 is fixedly connected to an air intake pipe 204, which extends into the drying box 1 and is fixedly connected to a drying head 215 at its end.

[0036] In actual implementation, when printing drying is required, the air intake fan 203 is started, and outside air enters the air intake pipe 306 through the air intake head 302 and finally enters the heating box 201 through the guide pipe 305. Under the action of the power supply 206, the electric heating rod 212 is powered. When the electric heating rod 212 is fully working, it heats the flowing gas. Finally, the heated gas is sent into the drying box 1 through the air intake pipe 204 at the end of the air intake fan 203 to achieve the drying operation. At the same time, under the action of the exhaust fan 303, the dried waste is extracted through the heat exchange exhaust pipe 304. The gas temperature is high. When it passes through the heat exchange exhaust pipe 304, the heat in it can be transferred to the heat conduction rod 308. The temperature of the heat conduction rod 308 rises and can transfer the heat to the heat exchange liquid in the heat exchange box 301. This process realizes the recovery of heat energy. Then the gas is sent out through the exhaust end of the exhaust fan 303.

[0037] As drying progresses, the heat exchange fluid is heated by the recovered heat. When outside air passes through the inlet pipe 306 again, the relatively high temperature of the heat exchange fluid heats the air in the inlet pipe 306. The preheated gas then enters the heating chamber 201 through the guide pipe 305. The gas first passes through the heat-sensitive element 214, which elongates under the heating effect of the preheated gas. This causes the movable column 211 on one side of the movable plate 213 to move. The movable column 211 moves the transmission arm 205 at its end, which moves away from the valve column 209. Under the action of the reset element 210, the valve column 209 rises, and the electric heating rod 212 at the corresponding position is disconnected, ceasing electric heating. Since the preheated gas itself has a certain temperature, only fewer electric heating rods 212 need to be turned on compared to the initial stage to meet the required temperature for drying. Thus, while ensuring the drying effect, the device reduces the energy consumption of drying and is more economical.

[0038] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A low-resistance printing press hot air energy-saving system, comprising a drying oven (1), characterized in that, An air heating component (2) is provided on the drying box (1). An air inlet component is provided on one side of the air heating component (2). The air heating component (2) includes a heating box (201). An electric heating component is provided inside the heating box (201). An air inlet temperature detection component is provided inside the heating box (201) on one side of the electric heating component. A guide pipe (305) is fixedly connected to the air inlet end of the heating box (201). An air inlet pipe (306) is fixedly connected to one end of the guide pipe (305). A heat recovery component (3) is provided on one side of the heating box (201). The air inlet pipe (306) passes through the heat recovery component (3). An exhaust component is provided on the heat recovery component (3). The temperature detection component adjusts the heating power of the electric heating component according to the temperature of the preheated airflow entering the heating box (201).

2. The low-resistance printing press hot air energy-saving system as described in claim 1, characterized in that, The electric heating assembly includes a mounting base (202) fixedly mounted on the heating box (201), and an electric heating rod (212) fixedly mounted on the bottom of the mounting base (202). Multiple electric heating rods (212) are provided.

3. The low-resistance printing press hot air energy-saving system as described in claim 2, characterized in that, A power supply (206) is fixedly connected to the heating box (201) on one side of the mounting base (202). A conductive valve (208) is fixedly connected between the power supply (206) and the heating box (201). A valve column (209) is slidably installed on the conductive valve (208). A reset piece (210) is sleeved on the valve column (209).

4. The low-resistance printing press hot air energy-saving system as described in claim 3, characterized in that, The intake air temperature detection component includes movable plates (213) that are slidably disposed on both sides inside the heating box (201), a thermal element (214) is fixedly connected between the movable plates (213), and a movable column (211) is fixedly connected to the side of the movable plate (213) away from the thermal element (214).

5. The low-resistance printing press hot air energy-saving system as described in claim 4, characterized in that, The movable column (211) is slidably connected to the side wall of the heating box (201), and the end of the movable column (211) outside the heating box (201) is fixedly connected to the transmission arm (205), which extends above the movable column (211).

6. The low-resistance printing press hot air energy-saving system as described in claim 5, characterized in that, The heat recovery assembly (3) also includes a heat exchange box (301), which is filled with heat exchange fluid, and an inlet pipe (307) is fixedly connected to the top of the heat exchange box (301).

7. The low-resistance printing press hot air energy-saving system as described in claim 6, characterized in that, Multiple air intake pipes (306) are provided. The air intake pipes (306) pass through the heat exchange box (301) and are fixedly connected to the air intake head (302) at their ends.

8. The low-resistance printing press hot air energy-saving system as described in claim 7, characterized in that, The internal shape of the air intake head (302) is set as a tapered streamlined structure.

9. The low-resistance printing press hot air energy-saving system as described in claim 8, characterized in that, The exhaust assembly includes an exhaust fan (303), which is fixedly installed on the drying box (1). The air inlet of the exhaust fan (303) is fixedly connected to a heat exchange exhaust pipe (304), which passes through the heat exchange box (301) and extends into the drying box (1).

10. The low-resistance printing press hot air energy-saving system as described in claim 1, characterized in that, The air intake assembly includes an air intake fan (203) fixedly installed on the side wall of the heating box (201). The air intake end of the air intake fan (203) is fixedly connected to an air intake pipe (204). The air intake pipe (204) extends into the drying box (1) and is fixedly connected to a drying head (215) at its end.

Images