Thin film production heat energy recovery device

Abstract

The invention discloses a thin film production heat energy recovery device, and particularly relates to the technical field of heat energy recovery devices, the thin film production heat energy recovery device comprises a heat exchange mechanism, and the heat exchange mechanism comprises a shell; a turbulence mechanism is arranged in the shell and is used for disturbing the hot fluid, so that the hot fluid forms turbulence; the turbulence mechanism comprises a plurality of branch pipes, a plurality of air bags are fixedly installed on the surfaces of the branch pipes, an inflation cavity is formed in the shell, and a disassembly and assembly mechanism is arranged between the inflation cavity and the branch pipes. By arranging the turbulence mechanism and the disassembly and assembly mechanism, the hot fluid can be disturbed when heat energy recovery is conducted on the hot fluid through the heat exchange shell, so that turbulence is formed by the hot fluid, and the heat exchange efficiency is improved. And meanwhile, impurities carried in the hot fluid can be prevented from remaining on the heat exchange shell, the branch pipe and the air bag, and the branch pipe and the air bag can be quickly disassembled and assembled, so that later maintenance and operation are more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of heat recovery devices, and in particular to a heat recovery device for film production. Background Art

[0002] Films need to be produced on a complete production line with many equipments. The raw materials need to be heated and melted in a melting machine first, and then the molten polymer is extruded through a die of a specific shape by an extruder to form a film. The film is then produced through a casting machine, a longitudinal stretching machine, a transverse stretching machine, a traction machine and a winder.

[0003] The raw materials are melted in the melting machine, which will discharge waste heat during use. If the waste heat discharged by the melting machine is not properly handled, it may cause the equipment to overheat and increase the risk of fire and explosion. In addition, the discharge of waste heat may also cause damage to the equipment and shorten the service life of the equipment. Waste heat is usually treated with a cooling device or a heat recovery device to avoid affecting the operation of the melting machine. From the perspective of energy saving and recovery, it is hoped that this part of the heat energy can be well recycled, so heat exchanger equipment is used to achieve energy conversion.

[0004] However, when recycling heat energy, the thermal fluid often contains various impurities. During the heat exchange process, the hot gas will solidify on the heat exchange surface of the heat exchanger after cooling, forming dirt, thereby reducing the heat exchange efficiency.

[0005] At the same time, in order to improve the efficiency of heat exchange, heat exchangers with special shapes are often used, such as corrugated metal plates, finned tubes, etc. However, the special structure makes it difficult to clean the attached impurities, and even blockage may occur after long-term use. Summary of the invention

[0006] The main purpose of the present invention is to provide a thin film production heat energy recovery device, which can effectively solve the technical problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present invention is:

[0008] A film production heat energy recovery device comprises a heat exchange mechanism, wherein the heat exchange mechanism comprises a shell;

[0009] A turbulence mechanism is arranged in the shell to disturb the thermal fluid so that the thermal fluid forms turbulence;

[0010] The turbulence mechanism comprises a plurality of branch pipes, a plurality of air bags are fixedly mounted on the surface of the branch pipes, an inflation cavity is provided in the shell, and a disassembly mechanism is provided between the inflation cavity and the branch pipes for quick disassembly and assembly of the branch pipes.

[0011] Furthermore, an electromagnet is fixedly installed at the top of the inflation cavity, an armature is slidably installed in the inflation cavity, an inner sealing ring is fixedly installed on the inner side of the armature, and an outer sealing ring is fixedly installed on the outer side of the armature.

[0012] Furthermore, the disassembly and assembly mechanism includes a plurality of mounting holes, the mounting holes are opened at the bottom end of the shell, a plurality of sealing covers are installed at the bottom end inside the shell, a plurality of connecting bolts are fixedly installed at the bottom end outside the shell, the connecting bolts are hollow structures, a mounting frame is fixedly installed inside the connecting bolts, a spring is fixedly installed at the bottom end of the mounting frame, a sealing ball is fixedly installed at the other end of the spring, and a sealing ring is fixedly installed at the bottom end inside the connecting bolts.

[0013] Furthermore, a heat exchange shell is fixedly installed inside the shell, a hot fluid outlet is fixedly installed on the surface of the shell near the bottom, a cold fluid inlet is fixedly installed at the bottom of the heat exchange shell and connected to the cold fluid outlet, and a cold fluid outlet is fixedly installed at the top of the heat exchange shell.

[0014] Furthermore, the heat exchange shell has a spiral structure.

[0015] Furthermore, the plurality of branch pipes are evenly distributed in the shell in a threaded shape, and the branch pipes are located in the gaps of the heat exchange shell, and the air bags are distributed on the branch pipes in an array.

[0016] Furthermore, a connecting nut is rotatably mounted on the branch pipe, and a push rod is fixedly mounted inside the branch pipe.

[0017] Furthermore, the connecting bolt is communicated with the inflation cavity, and the connecting bolt and the connecting nut are threadedly connected.

[0018] Furthermore, a suction mechanism is provided at the top of the shell, and the suction mechanism includes a flow equalizing tube, which is fixedly installed on the top of the shell, and a flow equalizing fan is rotatably installed in the flow equalizing tube, and a fan is fixedly installed on the top of the flow equalizing tube, and a hot fluid inlet is fixedly installed on the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a film production heat recovery device of the present invention;

[0020] Figure 2 A top view of the internal structure of a shell of a film production heat recovery device of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a flow balancing tube and a flow balancing fan of a thin film production heat energy recovery device of the present invention;

[0022] Figure 4It is a schematic diagram of the shell cross-section structure of a film production heat energy recovery device of the present invention;

[0023] Figure 5 It is an enlarged schematic diagram of a branch pipe and an air bag of a film production heat energy recovery device of the present invention;

[0024] Figure 6 This is a schematic diagram of the bottom structure of a shell of a film production heat recovery device of the present invention;

[0025] Figure 7 This is a schematic diagram of the bottom structure of the shell of a film production heat recovery device of the present invention;

[0026] Figure 8 A film production heat recovery device according to the present invention Figure 6 Enlarged schematic diagram of area A in the middle;

[0027] Fig. 9 This is a schematic diagram of the connection between a branch pipe and the bottom end of a shell of a film production heat recovery device of the present invention;

[0028] Fig.10 A film production heat recovery device according to the present invention Fig. 9 Enlarged schematic diagram of area B in the middle;

[0029] Fig.11 The figure is a schematic diagram of the internal structure of the connection between the branch pipe and the bottom end of the shell of a film production heat recovery device of the present invention.

[0030] In the figure: 1, heat exchange mechanism; 101, hot fluid inlet; 102, shell; 103, hot fluid outlet; 104, cold fluid inlet; 105, heat exchange shell; 106, cold fluid outlet;

[0031] 2. Suction mechanism; 201. Fan; 202. Flow balancing tube; 203. Flow balancing fan;

[0032] 3. Turbulence mechanism; 301. Branch pipe; 302. Air bag; 303. Inflatable chamber; 304. Electromagnet; 305. Armature; 306. Inner sealing ring; 307. Outer sealing ring;

[0033] 4. Disassembly and assembly mechanism; 401. Mounting hole; 402. Connecting bolt; 403. Sealing cover; 404. Connecting nut; 405. Push rod; 406. Mounting frame; 407. Spring; 408. Sealing ball; 409. Sealing ring. DETAILED DESCRIPTION

[0034] like Figure 1-3As shown, a heat energy recovery device for film production includes a heat exchange mechanism 1, and the heat exchange mechanism 1 includes a hot fluid inlet 101, which is used to connect a melting machine used to melt raw materials in film production, and recover the waste heat of the melting machine. The waste heat will be driven by gas to enter the heat exchange structure 1 for heat conversion and recycling. An intake mechanism 2 is arranged between the hot fluid inlet 101 and the shell 102, which is used to adjust and equalize the flow rate of the hot fluid. The intake mechanism 2 includes a fan 201, which is fixedly connected to one end of the hot fluid inlet 101 and is used to control the flow rate of the hot fluid. The bottom end of the fan 201 is fixedly connected to a flow equalizing tube 202, and the flow equalizing tube 202 is a truncated cone structure. A flow equalizing fan 203 is fixedly installed in the flow equalizing tube 202, and the flow equalizing fan 203 is a structure with a small top and a large bottom, and the fan blades are an inclined structure. When the hot fluid passes through, it will be evenly divided and amplified, so that the hot fluid can be evenly flowed, so that the hot fluid is more uniform when it leaves the flow equalizing tube 202.

[0035] The bottom end of the flow balancing tube 202 is fixedly connected to the shell 102, and a hot fluid outlet 103 is fixedly installed on the surface of the shell 102 near the bottom end. One end of the hot fluid outlet 103 is located below the bottom end of the heat exchange shell 105, which is used for the hot fluid to flow out after heat exchange. The heat exchange shell 105 is fixedly installed in the shell 102, which is used to recycle the heat of the hot fluid. The upper end of the shell 102 is installed with a cold fluid outlet 106, and the lower end is installed with a cold fluid inlet 104, which is used for the cold fluid to flow in the heat exchange shell 105.

[0036] The heat exchange shell 105 is used for heat exchange between cold and hot fluids, and the cold fluid enters the heat exchange shell 105 through the cold fluid inlet 104 and then flows out through the cold fluid outlet 106. Thus, the hot fluid enters through the hot fluid inlet 101 and flows out through the hot fluid outlet 103, and the fluid direction is from top to bottom. The cold fluid flows in through the cold fluid inlet 104 and flows out through the cold fluid outlet 106, and the flow direction of the cold fluid is from bottom to top. The flow directions of the cold fluid and the hot fluid are completely opposite, which belongs to convection, and can effectively improve the efficiency of heat exchange, thereby recycling waste heat, thereby effectively improving the efficiency of heat exchange.

[0037] The heat exchange shell 105 has a spiral structure and a smooth surface. The spiral structure makes the heat exchange surface area in the shell 102 larger, increases the heat exchange area, and thus improves the efficiency of heat exchange. The smooth surface makes it difficult for impurities to remain on the surface of the heat exchange shell 105, and the subsequent cleaning and maintenance are more convenient and quick. The surface of the heat exchange shell 105 can be cleaned by flushing with water.

[0038] like Figure 4 - Figure 5As shown, a turbulence mechanism 3 is provided in the shell 102, which is used to change the flow rate and flow direction of the hot fluid, so that the hot fluid forms turbulence, and the fluid particles in the turbulence move irregularly, resulting in a more uniform temperature distribution in the flow field, thereby reducing the temperature gradient and improving the efficiency of heat exchange. The turbulence mechanism 3 includes a plurality of branch pipes 301, and the plurality of branch pipes 301 are evenly distributed in the gap of the heat exchange shell 105 itself in a spiral shape. A plurality of air bags 302 are fixedly installed on the branch pipes 301, and the air bags 302 are also distributed in an array.

[0039] like Figure 4 As shown, an air-filling chamber 303 is provided in the shell 102, and an electromagnet 304 is fixedly installed at the top of the air-filling chamber 303. An armature 305 is also correspondingly provided in the air-filling chamber 303. A pressure relief hole (not shown in the figure) connected to the air-filling chamber 303 is opened on the shell 102 to prevent the displacement of the armature 305 from being hindered by the gas pressure between the electromagnet 304 and the armature 305.

[0040] The armature 305 is controlled to move by the electromagnet 304. The armature 305 contacts the inner sides of the air-filled cavity 303 through the staggered inner sealing ring 306 and the outer sealing ring 307, so as to improve the sealing performance. The branch pipe 301 is connected to the air-filled cavity 303 through the disassembly and assembly mechanism 4. When the armature 305 reciprocates, the gas pressure between the armature 305 and the branch pipe 301 is continuously changed, so that the airbag 302 can be continuously switched between bulging and storage, so that the branch pipe 301 and the airbag 302 are continuously switched between the bellows and the round tube, and the wave crest height of the bellows is continuously switched. Thus, it can effectively disturb the thermal fluid, and can make the thermal fluid form turbulence, which is better than the disturbance effect of the normal bellows, so as to effectively improve the efficiency of heat exchange. At the same time, due to the continuous movement of the airbag 302, it is difficult for the impurities carried by the thermal fluid to remain on the surface of the airbag 302 and the branch pipe 301 to form dirt.

[0041] like Figure 6 - Fig.11 As shown, a plurality of mounting holes 401 are provided through the bottom of the shell 102 for mounting the branch pipe 301. A sealing cover 403 is installed on the mounting hole 401 at the bottom of the shell 102. The sealing cover 403 is a raised structure, one protruding end of which is fixedly connected to the shell 102, and the other end is covered on the mounting hole 401 for sealing, and the sealing cover 403 is made of elastic material, such as rubber. After the branch pipe 301 is separated from the mounting hole 401, the sealing cover 403 can seal the mounting hole 401 under the action of its own elastic force to prevent the mounting hole 401 from leaking hot fluid. At the same time, the mounting hole 401 is not connected to the air-filled cavity 303, and the mounting hole 401 will not affect the sealing of the air-filled cavity 303.

[0042] A plurality of connecting bolts 402 are fixedly installed at the bottom of the outer side of the housing 102. The connecting bolts 402 are hollow structures and are connected to the gas-filled cavity 303, so that the gas-filled cavity 303 can be connected to the branch pipe 301. A connecting nut 404 is rotatably installed at one end of the branch pipe 301, and the connecting nut 404 is adapted to the connecting bolt 402 to connect the branch pipe 301 and the gas-filled cavity 303. The connecting bolts 402 and the connecting nut 404 are connected by threads.

[0043] A mounting frame 406 is fixedly installed on the top of the inner part of the connecting bolt 402. The mounting frame 406 includes a circular ring and a plurality of circular rods, so that the mounting frame 406 does not hinder the flow of gas. A spring 407 is fixedly connected to the bottom end of the mounting frame 406. A sealing ball 408 is fixedly installed on the bottom end of the spring 407. A sealing ring 409 is fixedly installed on the bottom end of the connecting bolt 402. An opening is provided in the center of the sealing ring 409, and the sealing ball 408 and the opening of the sealing ring 409 are adapted. Under the action of the elastic force of the spring 407, the sealing ball 408 can be closely contacted with the opening of the sealing ring 409 without the action of external force, so that the sealing ring 409 is sealed, thereby preventing the inflation chamber 303 from leaking through the connecting bolt 402.

[0044] A push rod 405 is fixedly installed at one end inside the branch pipe 301, and the top end of the push rod 405 is located inside the connecting nut 404, so that after the connecting nut 404 is connected to the connecting bolt 402, the push rod 405 can push up the sealing ball 408 to connect the branch pipe 301 with the inflation chamber 303.

[0045] It should be noted that the present invention is a heat recovery device for film production. When in use, the hot fluid inlet 101 is connected to the melting machine to transport the waste heat generated when the melting machine is working. The flow rate of the hot fluid is controlled by the rotation of the fan 201, and the hot fluid is evenly flowed through the flow equalizing fan 203, so that it is evenly transported to the inside of the shell 102 through the flow equalizing pipe 202, and finally flows out through the hot fluid outlet 103.

[0046] The cold fluid enters the heat exchange shell 105 through the cold fluid inlet 104 and then flows out through the cold fluid outlet 106. Thus, the flow directions of the cold fluid and the hot fluid are completely opposite, which belongs to convection, and can effectively improve the efficiency of heat exchange, thereby recycling waste heat.

[0047] The armature 305 can be controlled by the electromagnet 304, so that the armature 305 reciprocates along the air-filled cavity 303. When the armature 305 moves downward, the gas in the air-filled cavity 303 is squeezed, so that the airbag 302 swells, and the airbag 302 and the branch pipe 301 form a bellows shape. When the armature 305 moves upward, the airbag 302 shrinks again and is closely attached to the branch pipe 301. The airbag 302 and the branch pipe 301 form a common cylindrical structure. When the airbag 302 is constantly swelling and shrinking, it can effectively disturb the hot fluid, so that the hot fluid forms turbulence, which is better than the general bellows disturbance effect, and the volatility of the formed turbulence is greater, thereby effectively improving the efficiency of heat exchange. At the same time, the continuous movement of the airbag 302 makes it difficult for impurities carried in the hot fluid to remain on the surface of the branch pipe 301 and the airbag 302, which can effectively increase the service life and cleaning difficulty of the branch pipe 301 and the airbag 302.

[0048] When the branch pipe 301 and the airbag 302 need to be maintained or replaced later, the branch pipe 301 and the airbag 302 can be taken out from the housing 102 through the mounting hole 401 by rotating the connecting nut 404. After being taken out, the sealing cover 403 will seal the mounting hole 401 under the action of its own elastic force to prevent the hot fluid after heat exchange from leaking from the mounting hole 401. When the branch pipe 301 is separated from the connecting bolt 402, the connection between the push rod 405 and the sealing ball 408 is separated. Under the action of the elastic force of the spring 407, the sealing ball 408 is pressed against the sealing ring 409 again, so that the armature 305 and the branch pipe 301 are still in a sealed state, which will not affect the work of other branch pipes 301 and the airbag 302.

[0049] The above embodiments of the present invention can achieve the following beneficial effects:

[0050] 1. The present invention provides a turbulent mechanism and a disassembly mechanism, so that the thermal fluid can be disturbed when passing through the heat exchange shell for heat energy recovery, so that the thermal fluid forms turbulence, which is used to improve the efficiency of heat exchange. At the same time, it can prevent impurities carried in the thermal fluid from being retained on the heat exchange shell, branch pipes, and air bags, and the branch pipes and air bags can be quickly disassembled and assembled, making the later maintenance and operation more convenient.

[0051] 2. The present invention sets a turbulent mechanism so that the airbag can be continuously inflated and deflated, so that the airbag and the branch pipe can be converted between a corrugated tube and a round tube, and the wave crest of the corrugated tube is constantly changing, which has a better disturbance effect on the thermal fluid than the general corrugated tube, a better effect of forming turbulence, and a better efficiency of enhancing the heat transfer efficiency of the thermal fluid. At the same time, the airbag is constantly inflated and contracted, making it difficult for impurities carried by the thermal fluid to remain on the surface of the airbag and the branch pipe, effectively enhancing the service life of the device.

[0052] 3. The present invention provides a disassembly and assembly mechanism so that the branch pipe and the airbag can be quickly disassembled and assembled. After disassembly, the sealing cover will seal the installation hole to prevent the hot fluid from leaking out, and the sealing ball will seal the sealing ring, so that the branch pipe and the airbag can be disassembled and assembled without affecting the operation of the device, thereby facilitating the replacement or cleaning of the branch pipe and the airbag, and effectively enhancing the convenience of later maintenance.

[0053] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A film production heat recovery device, characterized in that: It comprises a heat exchange mechanism (1), wherein the heat exchange mechanism (1) comprises a shell (102); A turbulence mechanism (3) is arranged in the housing (102) for disturbing the thermal fluid so that the thermal fluid forms turbulence; The turbulence mechanism (3) comprises a plurality of branch pipes (301), a plurality of air bags (302) are fixedly mounted on the surface of the branch pipes (301), an inflation cavity (303) is provided in the shell (102), and a disassembly mechanism (4) is provided between the inflation cavity (303) and the branch pipes (301) for quickly disassembling and assembling the branch pipes (301).

2. The thin film production heat recovery device according to claim 1, characterized in that: An electromagnet (304) is fixedly mounted on the top of the inflation chamber (303), an armature (305) is slidably mounted in the inflation chamber (303), an inner sealing ring (306) is fixedly mounted on the inner side of the armature (305), and an outer sealing ring (307) is fixedly mounted on the outer side of the armature (305).

3. The thin film production heat recovery device according to claim 1, characterized in that: The disassembly and assembly mechanism (4) comprises a plurality of mounting holes (401), wherein the mounting holes (401) are provided at the bottom end of the shell (102), a plurality of sealing covers (403) are installed at the bottom end of the shell (102), a plurality of connecting bolts (402) are fixedly installed at the bottom end of the outer side of the shell (102), the connecting bolts (402) are hollow structures, a mounting frame (406) is fixedly installed inside the connecting bolts (402), a spring (407) is fixedly installed at the bottom end of the mounting frame (406), a sealing ball (408) is fixedly installed at the other end of the spring (407), and a sealing ring (409) is fixedly installed at the bottom end of the inner side of the connecting bolt (402).

4. The thin film production heat recovery device according to claim 1, characterized in that: A heat exchange shell (105) is fixedly installed inside the shell (102); a hot fluid outlet (103) is fixedly installed on the surface of the shell (102) near the bottom; the bottom end of the heat exchange shell (105) is fixedly installed and connected to a cold fluid inlet (104); and the top end of the heat exchange shell (105) is fixedly installed and connected to a cold fluid outlet (106).

5. The thin film production heat recovery device according to claim 4, characterized in that: The heat exchange shell (105) has a spiral structure.

6. The thin film production heat recovery device according to claim 5, characterized in that: The plurality of branch pipes (301) are evenly distributed in a threaded shape in the shell (102), and the branch pipes (301) are located in the gap of the heat exchange shell (105), and the air bags (302) are distributed in an array on the branch pipes (301).

7. The thin film production heat recovery device according to claim 1, characterized in that: A connecting nut (404) is rotatably mounted on the branch pipe (301), and a push rod (405) is fixedly mounted inside the branch pipe (301).

8. The thin film production heat recovery device according to claim 3, characterized in that: The connecting bolt (402) is in communication with the inflation chamber (303), and the connecting bolt (402) and the connecting nut (404) are threadedly connected.

9. The thin film production heat recovery device according to claim 1, characterized in that: The top of the shell (102) is provided with a suction mechanism (2), and the suction mechanism (2) comprises a flow balancing tube (202), the flow balancing tube (202) is fixedly mounted on the top of the shell (102), a flow balancing fan (203) is rotatably mounted inside the flow balancing tube (202), a fan (201) is fixedly mounted on the top of the flow balancing tube (202), and a hot fluid inlet (101) is fixedly mounted on the fan (201).

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