Steam energy-saving heating device for corrugated board production line

Abstract

The utility model discloses a steam energy -conserving heating device of corrugated paperboard production line relates to corrugated paperboard production technical field, and this utility model discloses a support frame, the support frame top fixedly connected with main pipeline, the inside symmetry fixedly connected with the breather board of main pipeline near the center, the fixedly connected with dispersion board between two breather boards between main pipeline inner wall and be located, the fixedly connected with water spray head of main pipeline inside top center, the fixedly connected with circular recovery pipe of main pipeline bottom center, and circular recovery pipe and water spray head are at the same horizontal plane, the fixedly connected with filter box of support frame side end and be located below main pipeline, the inside near the center sliding and inserting have two filter plates, in the utility model discloses, through setting double filtration parts (filter plate), thereby can avoid the impurity into the condensing radiating pipe, and then reduce the life consumption caused by impurity, effectively improve the service life of condensing radiating pipe.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard production technology, specifically to a steam energy-saving heating device for a corrugated cardboard production line. Background Technology

[0002] In industries such as packaging printing and logistics transportation, corrugated cardboard has become a core material for packaging various products due to its advantages such as lightweight, high strength and recyclability. Its production efficiency and quality directly affect the stability of the supply chain of downstream industries. One of the core processes of the corrugated cardboard production line is heating and shaping, which requires a stable heat source provided by a steam heating device to achieve cardboard bonding, drying and forming. Among them, the condenser heat dissipation pipe is a key component for steam heat exchange and condensate recovery, and its operating status directly determines the heating efficiency and equipment energy consumption. In the patent published in China with the publication number CN212962907U, entitled "Energy-Saving Steam Device for Low-Temperature Corrugated Paper Production Line", a multi-stage pump and spray head are designed to spray water to cool the raw steam in the main pipeline during use. The amount of water sprayed is adjusted by an electric valve according to different types of corrugated cardboard, so that the cooled steam is maintained at the set temperature. The cooled water can also be circulated and dissipated through a condenser heat dissipation pipe. The heat dissipated by the condenser heat dissipation pipe can be used to preheat the corrugated cardboard during processing, reducing unnecessary material loss of steam heat energy and improving steam utilization rate. The aforementioned equipment lacks corresponding filtration components when recycling cooling water, making it easy for various impurities to mix into the steam during the production process. These impurities come from metal shavings and scale particles generated by the corrosion of pipes in the steam generation system, as well as from pollutants such as fiber dust and adhesive residues in the cardboard production environment. These impurities, along with the steam and condensate, directly enter the condenser heat dissipation pipes and gradually deposit on the pipe walls. In mild cases, they form a layer of dirt, hindering the heat exchange between the steam and the pipe walls, leading to decreased heating efficiency and increased energy consumption. In severe cases, they block the flow channels of the condenser heat dissipation pipes, causing poor drainage of condensate. To address these issues, the inventors have proposed a steam energy-saving heating device for corrugated cardboard production lines. Utility Model Content

[0003] To address the problem that impurities, when directly entering the condenser heat dissipation pipe along with steam and condensate circulation, gradually accumulate on the pipe wall, eventually forming a layer of dirt, this invention aims to provide an energy-saving steam heating device for corrugated cardboard production lines.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a steam energy-saving heating device for a corrugated cardboard production line, including a support frame, a main pipe fixedly connected to the top of the support frame, venting plates symmetrically fixedly connected inside the main pipe near its center, a dispersion plate fixedly connected between the inner walls of the main pipe and between the two venting plates, a water spray head fixedly connected to the center of the top of the main pipe, and a circular recovery pipe fixedly connected to the center of the bottom of the main pipe, with the circular recovery pipe and the water spray head at the same horizontal plane. The side end of the support frame and located near the main pipe... A filter box is fixedly connected below the pipe. Two filter plates are slidably inserted into the filter box near its center. A square plate is fixedly connected to the center of the side end of each filter plate. A positioning hole is provided inside the square plate. A rotating frame is rotatably connected to the center of the side end of the filter box. A transmission gear is fixedly connected to the outer ring of the rotating frame. Two transmission gears are symmetrically rotatably connected to the side end of the filter box near the transmission gear, and the two transmission gears mesh with the transmission gear. An eccentric wheel is fixedly connected to the side end of the transmission gears, and the eccentric wheel is on the same horizontal plane as the positioning hole.

[0005] Preferably, a positioning shaft is slidably inserted into the interior of the rotating frame near the center, and several positioning holes are provided on the side of the filter box near the transmission gear in a ring-shaped arrangement. A pull plate is fixedly connected to the other end of the positioning shaft.

[0006] Preferably, a tension spring is fixedly connected to the side end of the pull plate and sleeved on the outer ring of the positioning insert shaft, and the other end of the tension spring is fixedly connected to the rotating frame. A condenser heat dissipation pipe is provided on the side end of the support frame and located below the filter box.

[0007] Preferably, a multi-stage pump is provided on the other side of the support frame at the same level as the condenser heat dissipation pipe, and one end of the multi-stage pump is fixedly connected to the condenser heat dissipation pipe, and the other end of the multi-stage pump is fixedly connected to a connecting pipe, and the other end of the connecting pipe passes through the main pipe and is fixedly connected to the spray head.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. By setting up a dual filtration component (filter plate) in this utility model, impurities can be prevented from entering the condenser heat dissipation tube, thereby reducing the life loss caused by impurities and effectively improving the service life of the condenser heat dissipation tube. 2. By setting up quick-release components (transmission gear one, transmission gear two, eccentric wheel and positioning hole), the filter plate can be easily removed for replacement, thereby improving the efficiency of filter plate installation and replacement. Attached Figure Description

[0009] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a direct view of the structure of this utility model.

[0012] Figure 3 This is a schematic diagram of the rotating frame structure of this utility model.

[0013] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0014] In the diagram: 1. Support frame; 2. Main pipe; 21. Spray head; 22. Connecting pipe; 23. Ventilation plate; 24. Dispersion plate; 3. Filter box; 31. Filter plate; 32. Square plate; 33. Positioning hole one; 34. Rotating frame; 35. Transmission gear one; 36. Transmission gear two; 37. Eccentric wheel; 38. Positioning hole two; 4. Positioning insert shaft; 41. Pull plate; 42. Tension spring; 5. Condensate heat dissipation pipe; 51. Multistage pump. Detailed Implementation

[0015] 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.

[0016] Example: Figure 1-4As shown, this utility model provides a technical solution: a steam energy-saving heating device for a corrugated cardboard production line, including a support frame 1, a main pipe 2 fixedly connected to the top of the support frame 1, venting plates 23 symmetrically fixedly connected to the inside of the main pipe 2 near its center, a dispersion plate 24 fixedly connected between the inner walls of the main pipe 2 and between the two venting plates 23, a spray head 21 fixedly connected to the top center of the inside of the main pipe 2, a circular recovery pipe fixedly connected to the bottom center of the main pipe 2, and the circular recovery pipe and the spray head 21 are at the same horizontal plane, a filter box 3 fixedly connected to the side of the support frame 1 and below the main pipe 2, and two filters slidably inserted inside the filter box near its center. A filter plate 31 is attached to a square plate 32 fixedly at the center of its side end. The square plate 32 has a positioning hole 33 inside. A rotating frame 34 is rotatably connected to the center of the side end of the filter housing 3. A transmission gear 35 is fixedly connected to the outer ring of the rotating frame 34. Two transmission gears 36 are symmetrically rotatably connected to the side end of the filter housing 3 near the transmission gear 35, and these two transmission gears 36 mesh with the transmission gear 35. An eccentric wheel 37 is fixedly connected to the side end of each transmission gear 36, and the eccentric wheel 37 is on the same horizontal plane as the positioning hole 33. A filter screen is installed on the filter plate 31. A dispersion pipe is installed inside the main pipe 2 near one of the ventilation plates 23. A cooling pipe is installed between the dispersion plate 24 and another ventilation plate 23. The cooling pipe, the water spray head 21, and the circular recovery pipe are on the same horizontal plane. The bottom end of the circular recovery pipe is fixedly connected to the filter box 3. A valve is installed at the bottom end of the filter box 3, and the valve is connected to the positioning shaft 4. The filter plate 31 is slidably inserted into the filter box 3 for easy disassembly. A sealing gasket is provided at the sliding insertion point to ensure sealing. The side end of the filter plate 31 penetrates the filter box 3 and is slidably inserted. It also has a matching inner groove. After the eccentric wheel 37 rotates to a certain angle, it can be locked into the positioning hole 33. The two eccentric wheels 37 are symmetrically arranged to facilitate rotation. Rotating in the opposite direction, the vent plate 23 has vent holes to disperse the steam flow and avoid local airflow concentration. The spray head 21 is an atomizing nozzle used to spray condensate into the main pipe 2 to achieve heat exchange between steam and water. This solution aims to protect the physical structure, but does not protect the circuit and software control. The proposed processing circuit is only to supplement the feasibility and authenticity of this utility model. This utility model does not require protection of the algorithm and circuit technology. It is worth emphasizing that although the electrical control program is not described in detail in this solution, those skilled in the art can be familiar with and apply it based on their professional knowledge.

[0017] A positioning shaft 4 is slidably inserted inside the rotating frame 34 near the center, and several positioning holes 38 are arranged in a ring on the side end of the filter box 3 near the transmission gear 35.

[0018] By adopting the above technical solution, the positioning shaft 4 is adapted to the positioning hole 38. The spacing of the positioning hole 38 is selected according to the actual use requirements. It is necessary to ensure that after the rotating frame 34 and the transmission gear 35 drive the positioning shaft 4 to rotate at a certain angle, the positioning shaft 4 can be inserted into the positioning hole 38.

[0019] The other end of the positioning shaft 4 is fixedly connected to a pull plate 41.

[0020] The pull plate 41 is provided by adopting the above technical solution to facilitate the horizontal movement of the positioning shaft 4.

[0021] A tension spring 42 is fixedly connected to the side end of the pull plate 41 and sleeved on the outer ring of the positioning insert shaft 4, and the other end of the tension spring 42 is fixedly connected to the rotating frame 34.

[0022] By adopting the above technical solution, the tension spring 42 is always in a pre-tensioned state, ensuring that the positioning shaft 4 is stably inserted into the positioning hole 38 and preventing accidental dislodgement.

[0023] A condenser heat dissipation pipe 5 is installed on the side of the support frame 1 and below the filter box 3.

[0024] By adopting the above technical solution, the condenser heat dissipation pipe 5 is fitted with heat dissipation fins (aluminum alloy material) to accelerate the cooling and condensation of the recovered liquid and realize the secondary utilization of heat.

[0025] A multi-stage pump 51 is installed at the same level as the condenser heat dissipation pipe 5 on the other side of the support frame 1, and one end of the multi-stage pump 51 is fixedly connected to the condenser heat dissipation pipe 5.

[0026] By adopting the above technical solution, the inlet end of the multistage pump 51 is fixedly connected to the outlet end of the condenser heat dissipation pipe 5 through a flange, and a sealing gasket (nitrile rubber material) is provided at the connection to prevent liquid leakage.

[0027] The other end of the multistage pump 51 is fixedly connected to a connecting pipe 22, and the other end of the connecting pipe 22 passes through the main pipe 2 and is fixedly connected to the spray head 21.

[0028] By adopting the above technical solution, a solenoid valve is installed at the connection between the spray head 21 and the main pipe 2, thereby forming a closed-loop water circuit of "recovery-filtration-condensation-circulation", realizing the reuse of water resources and reducing energy consumption.

[0029] Working principle: When in use, this device can draw water from the condenser tube 5 by starting the multi-stage pump 51 and use the spray head 21 to cool the supersaturated steam directly sent from the power plant into the main pipeline 2. The cooled water is then transported to the filter box 3 through the circular recovery pipe. The recovered cooling water is then filtered by two filter boxes 3, which can prevent impurities from entering the condenser tube 5 (impurities entering the condenser tube 5 can reduce the service life of the condenser tube 5), thereby improving the service life of the condenser tube 5. After prolonged filtration, a significant amount of impurities will accumulate on the filter plate 31. Pulling the pull plate 41 (unwinding the tension spring 42) will cause the positioning shaft 4 to move out of the positioning hole 38. At this point, the rotating frame 34 and the transmission gear 35 can be rotated, causing the two meshing transmission gears 36 to drive the eccentric wheel 37 to rotate in opposite directions. After the eccentric wheel 37 has rotated a certain degree, it can be moved out of the positioning hole 33, making it easier to remove and replace the filter plate 31. This improves the efficiency of installing and replacing the filter plate 31.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A steam energy-saving heating device for a corrugated cardboard production line, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the top of the main pipe (2). The main pipe (2) is symmetrically fixedly connected to the ventilation plate (23) near the center inside. The main pipe (2) is fixedly connected to the inner wall between the two ventilation plates (23). The main pipe (2) is fixedly connected to the center of the top of the main pipe (2). The main pipe (2) is fixedly connected to the center of the bottom of the main pipe (2). The circular recovery pipe is fixedly connected to the center of the bottom of the main pipe (2). The circular recovery pipe and the spray head (21) are on the same horizontal plane. A filter box (3) is fixedly connected to the side end of the support frame (1) and below the main pipe (2). Two filter plates (31) are slidably inserted inside the filter box (31) near the center. A square plate (32) is fixedly connected to the center of the side end of the filter plate (31). A positioning hole (33) is opened inside the square plate (32). A rotating frame (34) is rotatably connected to the center of the side end of the filter box (3). A transmission gear (35) is fixedly connected to the outer ring of the rotating frame (34). Two transmission gears (36) are symmetrically rotatably connected to the side end of the filter box (3) near the transmission gear (35). The two transmission gears (36) mesh with the transmission gear (35). An eccentric wheel (37) is fixedly connected to the side end of the transmission gear (36). The eccentric wheel (37) and the positioning hole (33) are on the same horizontal plane.

2. The steam economizer heating device for a corrugated paperboard line according to claim 1, characterized in that, The rotating frame (34) has a positioning shaft (4) slidably inserted near the center inside, and the filter box (3) has several positioning holes (38) arranged in a ring at the side end near the transmission gear (35).

3. The steam economizer heating device for a corrugated paperboard line according to claim 2, characterized in that, The other end of the positioning shaft (4) is fixedly connected to a pull plate (41).

4. The steam energy-saving heating device for a corrugated cardboard production line as described in claim 3, characterized in that, A tension spring (42) is fixedly connected to the side end of the pull plate (41) and sleeved on the outer ring of the positioning insert shaft (4), and the other end of the tension spring (42) is fixedly connected to the rotating frame (34).

5. The steam economizer heating device for a corrugated paperboard line according to claim 1, characterized by, A condenser heat dissipation pipe (5) is provided on the side of the support frame (1) and below the filter box (3).

6. The steam economizer heating device for a corrugated paperboard line according to claim 5, characterized in that, The other end of the support frame (1) is equipped with a multi-stage pump (51) at the same level as the condenser heat dissipation pipe (5), and one end of the multi-stage pump (51) is fixedly connected to the condenser heat dissipation pipe (5).

7. The steam energy-saving heating device for a corrugated cardboard production line as described in claim 6, characterized in that, The other end of the multistage pump (51) is fixedly connected to a connecting pipe (22), and the other end of the connecting pipe (22) passes through the main pipe (2) and is fixedly connected to the spray head (21).

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