A device for recycling hot air of a turbine fan in a papermaking plant

Abstract

The utility model relates to turbine fan technical field, and disclose paper mill is with turbine fan hot air recycling device, including device shell, still include first air inlet and filter mechanism, the bottom fixed connection of device shell has the support base plate of support device whole usefulness, the outside of device shell is provided with the filter mechanism for filtering high temperature waste gas, the first air inlet of making cold gas enter is fixedly connected on device shell, the heat exchange pipe body for heat exchange is fixedly connected on device shell. When carrying out heat exchange work, detect temperature value through temperature sensor body, and through controller body control telescopic link body adjust the distance between page board, to this control cold air flow rate, can compare according to the actual temperature of current and the target temperature of setting, accurately judge whether the air flow needs to be adjusted, when needing, through the flow space of control cold air to this reduce the flow rate of cold air, make the heat exchange effect more stable, help to save cold quantity.

Description

Technical Field

[0001] This utility model relates to the field of turbine fans, and in particular to a device for hot air recovery and reuse of turbine fans used in paper mills. Background Technology

[0002] In industrial production and various energy utilization scenarios, turbine blower hot air recovery and reuse devices play a crucial role. These devices aim to efficiently recover the hot air generated during turbine blower operation, reusing its contained thermal energy to improve energy efficiency and reduce energy consumption and production costs.

[0003] In existing technologies, common turbine blower hot air recovery and reuse devices utilize heat exchange between a cold medium and hot air through heat conduction and convection. This transfers heat from the hot air to the cold medium, raising its temperature while lowering the hot air temperature, thus achieving heat recovery and reuse. However, in actual use, heat transfer takes time during the exchange process. If the cold medium's flow rate is too high, the heat exchange between the hot air and the cold medium cannot proceed fully. The heat in the hot air is not completely transferred to the cold medium before the cold medium leaves the heat exchange area with the unabsorbed heat, leading to decreased energy efficiency. Therefore, an improved turbine blower hot air recovery and reuse device for paper mills is needed to solve these problems. Utility Model Content

[0004] To overcome the problem that insufficient heat exchange and reduced overall recycling efficiency can occur when cold air passes through at too high a speed.

[0005] The technical solution of this utility model is as follows: a hot air recovery and reuse device for a turbine blower in a papermaking workshop, including a device shell, a first air inlet and a filter mechanism. A support base plate for supporting the entire device is fixedly connected to the bottom of the device shell. A filter mechanism for filtering high-temperature waste gas is provided on the outside of the device shell. A first air inlet for cold air to enter is fixedly connected to the device shell. A heat exchange pipeline body for heat exchange is fixedly connected to the device shell. A first exhaust port for discharging cold air after heat exchange is fixedly connected to the bottom of the device shell. A temperature sensor body for detecting the temperature of cold air is provided on the first exhaust port. A controller body is provided on the device shell. A telescopic rod body is fixedly connected to the device shell. A sliding frame is fixedly connected to one end of the telescopic rod body. A fixed rack is fixedly connected to the bottom of the sliding frame. A rotating gear meshes on the fixed rack. A rotating rod is fixedly connected to the rotating gear. The rotating rod is rotatably connected to the device shell. A blade for controlling the flow rate of cold air is fixedly connected to the rotating rod.

[0006] Preferably, the outer casing of the device has a groove at the relative position of the rotating rod, and the rotating rod is rotatably connected to the groove.

[0007] Preferably, a first support frame is fixedly connected to the support base plate, and a fan body is installed on the first support frame. A connection port is fixedly connected between the fan body and the heat exchange pipeline body.

[0008] Preferably, the filtration mechanism includes a fixed outer casing, which is fixedly connected to a supporting base plate. A second air inlet is fixedly connected to the fixed outer casing. A connecting pipe is fixedly connected between the fixed outer casing and the fan body. A sliding frame is slidably connected to the fixed outer casing. A pre-filter plate body for filtering larger impurities is mounted on the sliding frame. A dust filter plate body for filtering dust is mounted on the sliding frame. An activated carbon filter plate body for filtering fine particles is mounted on the sliding frame. A fixed base is fixedly connected to the fixed outer casing. A connecting bracket is mounted on the fixed base. A first... A fixed rod is slidably connected to a rotating block, a connecting rod is fixedly connected to the rotating block, a first rotating block is rotatably connected to the connecting rod, a second rotating seat is rotatably connected to the fixed seat and the connecting bracket, a tension spring is fixedly connected between the first rotating block and the second rotating seat, a sliding rod is slidably connected to the connecting bracket, a fixed plate is fixedly connected to one end of the sliding rod, a threaded rod is threadedly connected to the connecting bracket, the threaded rod is rotatably connected to the fixed plate, a knob for adjusting the rotation of the threaded rod is fixedly connected to one end of the threaded rod, and a sealing gasket for sealing and fixing the outer casing is provided at the bottom of the fixed plate.

[0009] Preferably, three sliding frames are provided, which are sequentially slidably connected to the fixed outer box, and the pre-filter plate body, dust filter plate body and activated carbon filter plate body are respectively set on the three sliding frames.

[0010] Preferably, the rotating block has a groove for fitting at a position relative to the first fixed rod, and the rotating block is slidably connected to the first fixed rod through the groove.

[0011] Preferably, the fixing plate has a connecting groove at the relative position of the threaded rod, and the threaded rod is rotatably connected to the groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. During heat exchange, the temperature sensor detects the temperature value, and the controller adjusts the distance between the blades by controlling the telescopic rod, thereby controlling the airflow speed. It can accurately determine whether the airflow needs to be adjusted by comparing the current actual temperature with the set target temperature. If necessary, the airflow speed is reduced by controlling the airflow space, making the heat exchange effect more stable, the cooling capacity supply more stable, and reducing the required cooling capacity.

[0014] 2. During use, the hot air entering the heat exchange pipeline is fully filtered through a three-layer filter plate, preventing impurities in the hot air from entering the heat exchange pipeline and gradually accumulating to form a fouling layer inside the pipeline. This ensures smooth flow of hot air within the pipeline, reduces obstruction caused by impurity accumulation, and improves heat exchange efficiency, thereby saving cooling capacity. It is more effective in energy saving and emission reduction, ensuring the stable operation of the entire heat exchange system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of one embodiment of the hot air recovery and reuse device for a turbine blower in a papermaking workshop according to this utility model.

[0016] Figure 2 This utility model Figure 1 A rear view structural schematic diagram of the outer casing of the device and its connected components;

[0017] Figure 3 This utility model Figure 1 A schematic diagram of the cross-section of the outer casing of the device.

[0018] Figure 4 This is a schematic diagram of the structure of the filter mechanism assembly of this utility model;

[0019] Figure 5 This is a structural schematic diagram of the fixing base and its connected components of this utility model;

[0020] Figure 6 This is a structural schematic diagram of the connecting bracket and its connected components of this utility model.

[0021] In the diagram: 1. Device casing; 4. Support base plate; 21. First air inlet; 22. Heat exchange pipeline body; 23. First exhaust port; 24. Temperature sensor body; 25. Controller body; 26. Telescopic rod body; 27. Sliding frame; 28. Fixed rack; 29. ​​Rotating gear; 210. Rotating rod; 211. Blade; 212. First support frame; 213. Fan body; 214. Connection port; 31. Fixed outer casing; 32. Second air inlet; 33. Connecting pipe; 34. Sliding frame; 35. Pre-filter plate body; 36. Dust filter plate body; 37. Activated carbon filter plate body; 38. Fixing seat; 39. Connecting bracket; 310. First fixing rod; 311. Rotating block; 312. Connecting pull rod; 313. First rotating block; 314. Second rotating seat; 315. Tension spring; 316. Sliding rod; 317. Fixing plate; 318. Threaded rod; 319. Knob; 320. Sealing gasket. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1 - Figure 6 This utility model provides an embodiment of a turbine blower hot air recovery and reuse device for a paper mill workshop, including a device housing 1, a first air inlet 21, and a filter mechanism. A support base plate 4 for supporting the entire device is fixedly connected to the bottom of the device housing 1. A filter mechanism for filtering high-temperature exhaust gas is provided on the outside of the device housing 1. A first air inlet 21 for allowing cold air to enter is fixedly connected to the device housing 1. A heat exchange pipeline body 22 for heat exchange is fixedly connected to the device housing 1. A first exhaust port 23 for discharging cold air after heat exchange is fixedly connected to the bottom of the device housing 1. The first exhaust port 23 is equipped with... The device includes a temperature sensor body 24 for detecting the temperature of the air conditioner, a controller body 25 mounted on the housing 1, a telescopic rod body 26 fixedly connected to the housing 1, a sliding frame 27 fixedly connected to one end of the telescopic rod body 26, a fixed rack 28 fixedly connected to the bottom of the sliding frame 27, a rotating gear 29 meshing with the fixed rack 28, a rotating rod 210 fixedly connected to the rotating gear 29, the rotating rod 210 rotatably connected to the housing 1, and a flap 211 for controlling the airflow of the air conditioner fixedly connected to the rotating rod 210. The specific model of the temperature sensor body 24 is Siemens QAE2164.010, and the specific model of the controller body 25 is Siemens S7-1214C. During operation, the hot air from the DC / DC / DC converter is filtered by the filter mechanism and then guided into the heat exchange pipeline body 22. Subsequently, the hot air enters the device housing 1 through the first air inlet 21. Inside the housing 1, it undergoes thorough heat exchange through the heat exchange pipeline body 22, cooling the hot air inside and simultaneously heating the cold air. The heated cold air is then discharged through the first exhaust port 23 to an external pipeline for further use. As the cold air exits through the first exhaust port 23, the temperature sensor body 24 senses the temperature. If the temperature does not reach the required level, the temperature sensor body 24 transmits a signal to the controller body 25, which then... 25 controls the telescopic rod body 26 to work. The telescopic rod body 26 pushes the sliding frame 27 to move downward. When the sliding frame 27 moves, it drives the fixed rack 28 to move downward. Through the cooperation of the fixed rack 28 and the rotating gear 29, it drives the rotating rod 210 to rotate, thereby driving the blades 211 to rotate. This reduces the gap between the blades 211, thereby slowing down the speed of cold air passage and allowing the cold air to fully exchange heat with the heat exchange pipe body 22. The outer shell 1 of the device has a guide groove at the relative position of the sliding frame 27. The sliding frame 27 is slidably connected to the groove. The groove limits the sliding of the sliding frame 27 and prevents the sliding frame 27 from tilting and affecting the cooperation between the fixed rack 28 and the rotating gear 29.

[0024] Please see Figure 1 - Figure 3In this embodiment, the outer casing 1 of the device has a groove at the relative position of the rotating rod 210. The rotating rod 210 is rotatably connected to the groove. The groove restricts the rotation of the rotating rod 210, preventing it from detaching from the outer casing 1 when rotating, thus affecting the guide of the cold air by the blades 211. A first support frame 212 is fixedly connected to the support base plate 4. A fan body 213 is provided on the first support frame 212. A connection port 214 is fixedly connected between the fan body 213 and the heat exchange pipeline body 22. The working of the fan body 213 provides suction, allowing hot air to enter the heat exchange pipeline body 22 through the connection port 214 for heat exchange, thereby recovering and utilizing the hot air.

[0025] Please see Figure 2 , Figure 4 - Figure 6In this embodiment, the filtration mechanism includes a fixed outer casing 31, which is fixedly connected to the supporting base plate 4. A second air inlet 32 ​​is fixedly connected to the fixed outer casing 31. A connecting pipe 33 is fixedly connected between the fixed outer casing 31 and the fan body 213. A sliding frame 34 is slidably connected to the fixed outer casing 31. A pre-filter plate body 35 for filtering larger impurities is provided on the sliding frame 34. A dust filter plate body 36 for filtering dust is provided on the sliding frame 34. An activated carbon filter plate body 37 for filtering fine particles is provided on the sliding frame 34. A fixed seat 38 is fixedly connected to the fixed outer casing 31. A connecting bracket 39 is provided on the fixed seat 38. The fixed seat 38 and the connecting bracket... A first fixing rod 310 is fixedly connected to the frame 39. A rotating block 311 is slidably connected to the first fixing rod 310. A connecting pull rod 312 is fixedly connected to the rotating block 311. A first rotating block 313 is rotatably connected to the connecting pull rod 312. A second rotating seat 314 is rotatably connected to the fixing seat 38 and the connecting bracket 39. A tension spring 315 is fixedly connected between the first rotating block 313 and the second rotating seat 314. A sliding rod 316 is slidably connected to the connecting bracket 39. A fixing plate 317 is fixedly connected to one end of the sliding rod 316. A threaded rod 318 is threadedly connected to the connecting bracket 39. The threaded rod 318 is rotatably connected to the fixing plate 317. One end of the threaded rod 318 is fixed... A knob 319 is connected to the adjusting threaded rod 318 for rotation. A sealing gasket 320 is provided at the bottom of the fixing plate 317 for sealing the outer casing 31. The sealing gasket 320 seals the gaps in the outer casing 31 to prevent hot air from leaking out and wasting heat. Three sliding frames 34 are provided, which are slidably connected to the outer casing 31 in sequence. The pre-filter plate body 35, the dust filter plate body 36, and the activated carbon filter plate body 37 are respectively set on the three sliding frames 34. The hot air is filtered by the pre-filter plate body 35, the dust filter plate body 36, and the activated carbon filter plate body 37 before entering the heat exchange pipeline body 22. To prevent impurities in the hot air from affecting the heat exchange process, a sliding groove is provided on the rotating block 311 at a position relative to the first fixed rod 310. The rotating block 311 is slidably connected to the first fixed rod 310 through the sliding groove. The sliding groove cooperates with the first fixed rod 310 to limit the rotation range of the rotating block 311 and prevent it from rotating too much and disengaging, which would affect the restriction on the fixed seat 38 and the connecting bracket 39. A connecting groove is provided on the fixed plate 317 at a position relative to the threaded rod 318. The threaded rod 318 is rotatably connected to the groove. The groove prevents the threaded rod 318 from disengaging from the fixed plate 317 when rotating, thereby driving the fixed plate 317 to move.

[0026] During operation, hot air enters the fixed outer casing 31 through the second air inlet 32. Inside the fixed outer casing 31, the hot air passes through three sliding frames 34, and is then fully filtered by the pre-filter plate body 35, the dust filter plate body 36, and the activated carbon filter plate body 37. It then passes through the fan body 213 and the connection port 214 into the heat exchange pipeline body 22. Inside the outer casing 1, the heat exchange pipeline body 22 fully exchanges heat, cooling the hot air inside and simultaneously heating the cold air. The heated cold air is then discharged through the first exhaust port 23 to an external pipeline for further use. As the cold air is discharged through the first exhaust port 23, the temperature sensor body 24 senses the temperature of the cold air. If the temperature does not reach the required level, the temperature sensor body 24 transmits a signal to the controller body 25, which then controls the telescopic rod body 26 to operate. The telescopic rod body 26 pushes the sliding frame 27 downwards, and the sliding frame 27 moves the fixed rack 28 downwards. The fixed rack 28 engages with the rotating gear 29, driving the rotating rod 210 to rotate, which in turn drives the blades 211 to rotate, reducing the gaps between the blades 211 and slowing down the flow of cold air. This allows the cold air to fully exchange heat with the heat exchange pipe body 22. When it is necessary to replace or maintain the filter plates inside the fixed outer casing 31, first pull the connecting rod 312 to drive the rotating block 311 to rotate. When the rotating block 311 rotates, it pushes the rotating block 311 on the other side to rotate synchronously. This removes the restriction between the connecting bracket 39 and the fixed base 38. Then, the connecting bracket 39 is removed, and the sliding frame 34 is pulled to remove the filter plate. After replacement and maintenance, the sliding frame 34 is placed back into the fixed outer casing 31, and the connecting bracket 39 is reinstalled on the fixed base 38. Turning the knob 319 rotates the threaded rod 318, which in turn moves the fixed plate 317, causing the sealing gasket 320 to move closer to the fixed outer casing 31, sealing the fixed outer casing 31.

[0027] Through the above steps, during heat exchange, the temperature value is detected by the temperature sensor body 24, and the distance between the blades 211 is adjusted by the telescopic rod body 26 controlled by the controller body 25, thereby controlling the cold air flow rate. This solves the problem that when the cold air passes through too fast, the heat exchange effect will be insufficient, affecting the overall recycling efficiency.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many other modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it.

Claims

1. A device for recovering and reusing hot air from a turbine blower in a paper mill, comprising a casing, characterized in that: It also includes a first air inlet and a filter mechanism. A support base plate for supporting the entire device is fixedly connected to the bottom of the device housing. A filter mechanism for filtering high-temperature exhaust gas is installed on the outside of the device housing. A first air inlet for cold air to enter is fixedly connected to the device housing. A heat exchange pipeline body for heat exchange is fixedly connected to the device housing. A first exhaust port for discharging cold air after heat exchange is fixedly connected to the bottom of the device housing. A temperature sensor body for detecting the temperature of cold air is installed on the first exhaust port. A controller body is installed on the device housing. A telescopic rod body is fixedly connected to the device housing. A sliding frame is fixedly connected to one end of the telescopic rod body. A fixed rack is fixedly connected to the bottom of the sliding frame. A rotating gear meshes on the fixed rack. A rotating rod is fixedly connected to the rotating gear. The rotating rod is rotatably connected to the device housing. A blade for controlling the flow rate of cold air is fixedly connected to the rotating rod.

2. The hot air recovery and reuse device for turbine blowers in papermaking workshops according to claim 1, characterized in that: The outer casing of the device has a guide groove at the relative position of the sliding frame, and the sliding frame is slidably connected to the groove.

3. The hot air recovery and reuse device for turbine blowers in papermaking workshops according to claim 1, characterized in that: The outer casing of the device has a rotating groove at the relative position of the rotating rod, and the rotating rod is rotatably connected to the rotating groove.

4. The hot air recovery and reuse device for turbine blowers in papermaking workshops according to claim 1, characterized in that: A first support frame is fixedly connected to the base plate, and a fan body is mounted on the first support frame. A connection port is fixedly connected between the fan body and the heat exchange pipeline body.

5. The hot air recovery and reuse device for turbine blowers in papermaking workshops according to claim 1, characterized in that: The filtration mechanism includes a fixed outer casing, which is fixedly connected to a supporting base plate. A second air inlet is fixedly connected to the fixed outer casing. A connecting pipe is fixedly connected between the fixed outer casing and the fan body. A sliding frame is slidably connected to the fixed outer casing. A pre-filter plate for filtering larger impurities is mounted on the sliding frame. A dust filter plate for filtering dust is mounted on the sliding frame. An activated carbon filter plate for filtering fine particles is mounted on the sliding frame. A fixed base is fixedly connected to the fixed outer casing. A connecting bracket is mounted on the fixed base. A first fixed... The rod has a rotating locking block slidably connected to the first fixed rod, a connecting pull rod fixedly connected to the rotating locking block, a first rotating block rotatably connected to the connecting pull rod, a second rotating seat rotatably connected to the fixed seat and the connecting bracket, a tension spring fixedly connected between the first rotating block and the second rotating seat, a sliding rod slidably connected to the connecting bracket, a fixed plate fixedly connected to one end of the sliding rod, a threaded rod threadedly connected to the connecting bracket, the threaded rod rotatably connected to the fixed plate, a knob for adjusting the rotation of the threaded rod fixedly connected to one end of the threaded rod, and a sealing gasket for sealing and fixing the outer casing is provided at the bottom of the fixed plate.

6. The hot air recovery and reuse device for turbine blowers in papermaking workshops according to claim 5, characterized in that: There are three sliding frames, which are slidably connected to the fixed outer box. The pre-filter plate body, the dust filter plate body and the activated carbon filter plate body are respectively set on the three sliding frames.

7. The hot air recovery and reuse device for turbine blowers in papermaking workshops according to claim 5, characterized in that: The rotating block has a matching groove at a position relative to the first fixed rod, and the rotating block is slidably connected to the first fixed rod through the groove.

8. The hot air recovery and reuse device for a turbine blower in a paper mill according to claim 5, characterized in that: The fixing plate has a connecting groove at the relative position of the threaded rod, and the threaded rod is rotatably connected to the groove.

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