Chemical heat exchanger for chemical production

Abstract

The invention relates to the technical field of chemical production equipment, in particular to a chemical heat exchanger for chemical production, which comprises an outer shell, two supports are fixedly mounted at the bottom of the outer wall of the outer shell, a heat exchange assembly for heat exchange is arranged in the outer shell, and an air inlet pipe is fixedly mounted on one side of the top of the outer wall of the outer shell. An exhaust pipe is fixedly installed on the other side of the bottom of the outer wall of the outer shell. A filtering assembly used for filtering waste gas is arranged in the gas inlet pipe, and an adjusting assembly used for adjusting the heat exchange efficiency is arranged on one side of the heat exchange assembly. The detachable filtering assembly is arranged in the gas inlet pipe, impurities such as dust and particulate matter in waste gas or a process medium can be accurately intercepted through the filtering plate, and blockage or corrosion caused by the fact that the impurities are attached to the inner wall of the heat exchange pipe is avoided; meanwhile, the filter assembly adopts a quick-release structure in which the wedge-shaped clamping column is matched with the spring, so that the filter pipe and the filter plate can be disassembled and assembled without a complicated tool, and timely cleaning or replacement is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical production equipment, in particular to a chemical heat exchanger for chemical production. BACKGROUND

[0002] In the field of chemical production, heat transfer is the core link to ensure process continuity and improve energy utilization. As the key equipment for heat exchange between different media, the performance of chemical heat exchanger is directly related to production efficiency, energy consumption and equipment operation life, and it is widely used in chemical reaction, material distillation, waste heat recovery, solution concentration and many other process scenarios. With the transformation and upgrading of the chemical industry towards high efficiency, energy saving and environmental protection, more stringent requirements are put forward for the heat exchange efficiency, working condition adaptability, maintenance convenience and operation stability of the heat exchanger.

[0003] However, the existing chemical heat exchanger still has many technical shortcomings in actual application, which is difficult to meet the use requirements of complex chemical working conditions: the waste gas or process medium produced in chemical production often contains dust, particulate matter, corrosive impurities, etc. These impurities directly enter the inside of the heat exchanger, easily adhere to the inner wall of the heat exchange tube to form blockage or cause corrosion, not only leading to increased heat exchange resistance and significantly reduced heat exchange efficiency, but also shortening the service life of the heat exchange tube and increasing the frequency and cost of equipment downtime maintenance; the heat exchange structure of traditional heat exchanger is fixed, and the contact angle of heat exchange tube and fluid, fluid flow rate and other key parameters cannot be flexibly adjusted according to production load, medium temperature and other working conditions. When the process parameters fluctuate, it is difficult to achieve optimal heat exchange effect, resulting in energy waste or failure to meet the process temperature requirements; the inner wall of the heat exchange tube is prone to fouling after long-term use, and the existing equipment lacks targeted self-cleaning structure, so the fouling cleaning needs to disassemble the entire heat exchange assembly, which is cumbersome and seriously affects the production continuity. SUMMARY

[0004] In view of the above shortcomings of the prior art, the present application provides a chemical heat exchanger for chemical production, which can effectively solve the problems existing in the prior art.

[0005] To achieve the above purpose, the technical scheme is as follows: The present application provides a chemical heat exchanger for chemical production, comprising an outer shell, two supports are fixedly installed at the bottom of the outer wall of the outer shell, a heat exchange assembly for heat exchange is arranged in the inner part of the outer shell, an air inlet pipe is fixedly installed on one side of the top of the outer wall of the outer shell, and an air outlet pipe is fixedly installed on the other side of the bottom of the outer wall of the outer shell: A filter assembly for filtering waste gas is arranged in the inner part of the air inlet pipe, an adjusting assembly for adjusting the heat exchange efficiency is arranged on one side of the heat exchange assembly, a mounting ring is installed on the heat exchange assembly, and a plurality of guide vanes are installed on the outer wall of the mounting ring.

[0006] Preferably, the bottom of the support is provided with a non-slip pad, and the support is welded and fixed with the outer shell, and the outer wall of the outer shell is provided with a heat preservation layer.

[0007] Preferably, the heat exchange assembly comprises oppositely arranged first and second side plates, the first and second side plates are both provided with a connecting pipe penetratingly installed thereon, the outer wall of the two connecting pipes is both installed on the corresponding first and second side plates through a sealing bearing, a heat exchange pipe is fixedly installed between the two connecting pipes, the heat exchange pipe is a continuous S-shaped bent pipe, and two locking bolts are installed between the first side plate and the outer shell.

[0008] Preferably, the diameter of the first side plate is greater than the outer wall of the outer shell, and the first side plate is sleeved on one side of the outer wall of the outer shell, and the diameter of the second side plate is smaller than the inner wall of the outer shell, and the outer wall of the second side plate is tightly attached to the inner wall of the outer shell.

[0009] Preferably, the heat exchange assembly further comprises a sealing ring fixedly installed on one side of the second side plate, the inner wall of the second side plate is provided with an installation groove, a snap ring is embeddedly installed in the installation groove, and a scraping ring is installed on the snap ring.

[0010] Preferably, the filter assembly comprises a filter pipe detachably installed in the inner part of the air inlet pipe, a connecting frame is fixedly connected in the inner part of the filter pipe, an installation block is fixedly installed in the inner part of the connecting frame, clamping columns are slidingly arranged on both sides of the inner part of the connecting frame, springs are arranged between the clamping columns and the installation block, and a filter plate for filtering impurities is inserted in the inner part of the filter pipe.

[0011] Preferably, the two clamping columns are wedge-shaped, and the inner wall of the air inlet pipe is provided with clamping grooves matched with the two clamping columns.

[0012] Preferably, the adjusting assembly comprises a tooth ring fixedly installed on the outer wall of one of the connecting pipes, an installation frame is fixedly installed on the side wall of the second side plate, a rotating shaft is rotatably installed between the installation frame and the second side plate, a gear corresponding to the tooth ring is fixedly installed on the outer wall of the rotating shaft, an electric motor is fixedly installed on the installation frame, and the output shaft of the electric motor is connected with one end of the rotating shaft.

[0013] Preferably, an axle hole corresponding to the rotating shaft is formed in the installation frame, the rotating shaft penetrates the inner part of the axle hole, the electric motor is a servo motor, and the electric motor is electrically connected with an external controller, so that the angle of the heat exchange assembly is adjusted by the electric motor.

[0014] Preferably, a plurality of the flow guide vanes are uniformly distributed along the circumference of the mounting ring, the flow guide vanes and the mounting ring are integrally formed, and the surface of the flow guide vanes is provided with an arc-shaped flow guide surface.

[0015] Compared with the known prior art, the technical scheme provided by the present application has the following beneficial effects: The present application can accurately intercept dust, particulate matter and other impurities in waste gas or process medium by setting a detachable filter assembly inside the air inlet pipe, avoiding the attachment of impurities to the inner wall of the heat exchange pipe to cause blockage or corrosion; meanwhile, the filter assembly adopts a quick-release structure of a wedge-shaped clamping column cooperating with a spring, so that the filter pipe and filter plate can be disassembled without complex tools, facilitating timely cleaning or replacement, effectively prolonging the service life of the heat exchange pipe and reducing the frequency of equipment downtime maintenance.

[0016] The servo motor driving gear of the adjusting assembly is meshed and driven by the gear ring to rotate the heat exchange pipe in the heat exchange assembly, thereby changing the contact time of the heat exchange pipe with the fluid and the fluid flow path, realizing dynamic optimization of heat exchange efficiency, and when the process parameters such as production load and medium temperature fluctuate, the external controller can quickly adjust to the optimal heat exchange state, avoiding energy waste, ensuring that the process temperature meets the standard, and adapting to the needs of different chemical production scenes.

[0017] In the present application, the clamping ring and scraping ring embedded in the mounting groove of the second side plate of the heat exchange assembly are tightly fitted with the inner wall of the heat exchange pipe, and when the heat exchange assembly rotates, the scraping ring can synchronously scrape the inner wall of the heat exchange pipe to timely remove the formed dirt without disassembling the entire heat exchange assembly for self-cleaning; meanwhile, the first side plate and the outer shell are fixed by lock bolts, which is convenient to disassemble, further reducing the operation difficulty and time cost of cleaning and maintenance, and ensuring the continuity of production.

[0018] In the present application, the sealing ring at the edge of the second side plate is tightly fitted with the inner wall of the outer shell, and the connection between the connecting pipe and the side plate is sealed by a sealing bearing, so that the double-sealing structure can effectively prevent medium leakage, avoid safety hazards caused by chemical medium leakage, and ensure the safety of the production environment and the health of the operators.

[0019] In the present application, the integrally formed flow guide fan blades are uniformly distributed along the circumference of the mounting ring, and the arc-shaped flow guide surface can effectively guide the fluid in the shell, breaking the problem of local retention and uneven flow velocity of the fluid in the traditional heat exchanger, so that the fluid is evenly distributed along the surface of the heat exchange pipe, increasing the utilization rate of the heat exchange area, reducing the heat exchange dead angle, and significantly improving the overall heat exchange efficiency and heat exchange uniformity. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any inventive labor.

[0021] Figure 1It is a schematic view of the three-dimensional structure of the present application. Figure 2 It is an internal sectional view of the present application. Figure 3 It is a schematic view of the internal structure of the present application. Figure 4 It is a schematic view of the structure of the guide fan blade in the present application. Figure 5 It is a schematic view of the structure of the filter assembly in the present application. Figure 6 It is a sectional view of the filter assembly in the present application. Figure 7 It is Figure 1 It is a partial enlarged view at A in the figure. Figure 8 It is Figure 2 It is a partial enlarged view at B in the figure.

[0022] Reference signs: 1, outer shell; 2, support; 3, heat exchange assembly; 31, first side plate; 32, second side plate; 321, sealing ring; 322, mounting groove; 323, snap ring; 324, scraping ring; 33, connecting pipe; 34, sealing bearing; 35, heat exchange pipe; 36, locking bolt; 4, air inlet pipe; 5, air outlet pipe; 6, filter assembly; 61, filter pipe; 62, connecting frame; 63, mounting block; 64, clamping column; 65, spring; 66, filter plate; 7, adjusting assembly; 71, tooth ring; 72, mounting frame; 73, rotating shaft; 74, gear; 75, motor; 8, mounting ring; 9, guide fan blade. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without making creative efforts fall within the protection scope of the present application.

[0024] The present application will be further described below in combination with the embodiments.

[0025] Embodiment: refer to Figures 1 to 8The utility model provides a chemical heat exchanger for chemical production, including shell body 1, the bottom of the outer wall of shell body 1 is fixedly installed with two supports 2, the inside of shell body 1 is provided with heat exchange subassembly 3 for heat exchange, the top of the outer wall of shell body 1 one side is fixedly installed with air inlet pipe 4, the bottom of the outer wall of shell body 1 other side is fixedly installed with exhaust pipe 5: The inside of air inlet pipe 4 is provided with filter subassembly 6 for filtering exhaust gas, and heat exchange subassembly 3 one side is provided with adjusting subassembly 7 for adjusting heat exchange efficiency, and heat exchange subassembly 3 is installed with mounting ring 8, and the outer wall of mounting ring 8 is installed with multiple guide vanes 9.

[0026] The bottom of support 2 is provided with antiskid pad, and support 2 and shell body 1 are welded fixedly, and the outer wall of shell body 1 is provided with heat preservation layer;Antiskid pad can increase the friction of support 2 and ground, effectively prevent the displacement and sliding of equipment due to vibration, especially suitable for the complex environment such as oil stain and dust possibly existing on the ground of chemical workshop, avoid the risk of equipment toppling, guarantee the safety of production site, the welding fixed mode can make support 2 and shell body 1 form integral structure, and the connecting strength is much higher than that of bolt connection and other detachable mode, can stably bear the total weight of shell body 1, internal heat exchange subassembly 3 and medium, resist the external force generated by vibration and medium pressure fluctuation during equipment operation simultaneously, avoid loosening or fracture at the connecting place, guarantee long-term stable operation of equipment, heat preservation layer can block the heat transfer between shell body 1 and external environment, avoid the heat loss to external environment during the heat exchange in the shell, especially suitable for the heat exchange scene needing accurate temperature control in chemical production, reduce energy waste, reduce production energy consumption cost, heat preservation layer can maintain the stable temperature environment inside shell body 1, avoid the temperature fluctuation of fluid in the shell due to the change of external temperature, ensure the stable heat exchange efficiency of heat exchange pipe 35 and medium in the shell, make the temperature of medium after heat exchange reach the process requirement, improve the stability of product quality or subsequent process.

[0027] The heat exchange assembly 3 comprises a first side plate 31 and a second side plate 32 arranged oppositely, the first side plate 31 and the second side plate 32 are both provided with a connecting pipe 33 penetratingly installed thereon, the outer walls of the two connecting pipes 33 are both installed on the corresponding first side plate 31 and second side plate 32 through a sealing bearing 34, a heat exchange pipe 35 is fixedly installed between the two connecting pipes 33, the heat exchange pipe 35 is a continuous S-shaped bent pipe, two locking bolts 36 are installed between the first side plate 31 and the outer shell 1; as the core support structure of the heat exchange assembly, the first side plate 31 and the second side plate 32 are arranged oppositely to provide a stable installation reference for the connecting pipe 33 and the heat exchange pipe 35, so that the three form an integrated heat exchange unit, avoiding structural looseness caused by medium flow or equipment vibration, improving the overall rigidity and operation stability of the heat exchange assembly, the connecting pipe 33 penetrates the first side plate 31 and the second side plate 32, serving as a dedicated input and output channel for the heat exchange medium, realizing physical isolation and independent flow of the heat exchange medium and the medium to be heated in the shell, avoiding mixing and pollution of the two media, ensuring the medium purity requirement of the chemical process, the two connecting pipes 33 are fixedly connected with the two ends of the heat exchange pipe 35 respectively, forming a complete heat exchange medium circulation channel, ensuring that the heat exchange medium can fully cover the inside of the heat exchange pipe 35 without flow dead angle, maximizing the heat exchange potential of the heat exchange pipe 35, the sealing bearing 34 is installed at the connection between the connecting pipe 33 and the first side plate 31 and the second side plate 32, on the one hand, it blocks the leakage of the heat exchange medium from the gap between the connecting pipe 33 and the side plate through the sealing performance, avoiding the safety hidden danger caused by the leakage of chemical medium, ensuring the safety of production environment; on the other hand, its bearing characteristics allow the connecting pipe 33 to rotate flexibly relative to the side plate, providing structural support for the adjustment assembly 7 to drive the overall rotation of the heat exchange assembly, ensuring smooth rotation without jamming, and not affecting the sealing effect, the heat exchange pipe 35 adopts a continuous S-shaped bent pipe structure, which greatly extends the total length of the heat exchange pipe 35 in the limited internal space of the outer shell 1, thereby increasing the heat exchange area, solving the problems of low space utilization and insufficient heat exchange area of traditional straight pipe heat exchangers, improving the heat exchange capacity per unit volume, the continuous S-shaped structure prolongs the flow path and residence time of the heat exchange medium in the pipe, making the heat exchange between the heat exchange medium and the medium to be heated in the shell more sufficient, significantly improving the heat exchange efficiency, meeting the demand of chemical process for deep heat exchange, the locking bolt 36 provides a reliable fixing method for the first side plate 31 and the outer shell 1, tightly fixing the heat exchange assembly inside the outer shell 1, resisting external forces such as vibration and medium pressure fluctuation during equipment operation, avoiding displacement of the heat exchange assembly, and ensuring long-term stable operation of the equipment.

[0028] The diameter of the first side plate 31 is greater than the outer wall of the outer shell 1, and the first side plate 31 is sleeved on one side of the outer wall of the outer shell 1. The diameter of the second side plate 32 is smaller than the inner wall of the outer shell 1, and the outer wall of the second side plate 32 is tightly fitted with the inner wall of the outer shell 1. The first side plate 31 is sleeved and fixed on the inner side of the second side plate 32, and the two ends are limited and positioned, so that the heat exchange assembly 3 is stably constrained in the outer shell 1. Both ensure the sealing reliability and the smoothness of the rotation adjustment. The fitting and sleeving structure of the two simplifies the disassembly and assembly process, reduces the cleaning dead angle, improves the practicability and economy of the equipment, and meets the core needs of efficient, energy-saving and convenient maintenance of chemical production.

[0029] The heat exchange assembly 3 further comprises a sealing ring 321 fixedly installed on one side of the second side plate 32. The inner wall of the second side plate 32 is provided with an installation groove 322, and the installation groove 322 is embedded with a snap ring 323. The snap ring 323 is provided with a scraping ring 324. The second side plate 32 is tightly fitted with the inner wall of the outer shell 1 to form a basic seal. The sealing ring 321 is fixed on one side of the second side plate 32 to further fill the small gap between the side plate and the shell. The installation groove 322 of the inner wall of the second side plate 32 provides a precise embedding position for the snap ring 323. After the snap ring 323 is embedded, it is tightly fitted with the installation groove 322 and will not be displaced due to the rotation of the heat exchange assembly and the impact of the fluid. The installation stability of the scraping ring 324 is ensured, and the influence of the scraping ring falling off on the subsequent cleaning effect is avoided. When the heat exchange assembly 3 is taken out, the scraping ring 324 on the second side plate 32 moves simultaneously. In the moving process, the impurities adhered to the inner wall of the outer shell 1 are scraped off, the difficulty of subsequent maintenance is reduced, and the use effect is improved.

[0030] The filter assembly 6 comprises a filter pipe 61 detachably mounted in the air inlet pipe 4, the inside of the filter pipe 61 is fixedly connected with a connecting frame 62, the inside of the connecting frame 62 is fixedly mounted with a mounting block 63, the inside of the connecting frame 62 is slidably provided with a clamping column 64 on both sides, the clamping column 64 is provided with a spring 65 between the mounting block 63, and the inside of the filter pipe 61 is provided with a filter plate 66 for filtering impurities; the filter pipe 61 is used as an outer carrier of the filter assembly, after being embedded in the air inlet pipe 4, an independent filtering space is formed, the filter plate 66, the connecting frame 62 and other core components are integrated into one, the impurities are prevented from directly contacting the inner wall of the air inlet pipe, at the same time, the medium is guided to flow through the filter plate 66, the filtering dead angle is ensured, the impurity interception efficiency is improved, the filter plate 66 is mounted in the filter pipe 61 in a plug-in manner, when cleaning, the filter plate 66 can be directly pulled out for flushing or replacement, the whole filter assembly does not need to be replaced, the maintenance material cost is greatly reduced; at the same time, the filter plate 66 with different filtering precision can be flexibly replaced according to the type and particle size of the medium impurities, the medium demand of different chemical processes is adapted, the sliding channel of the clamping column 64 in the connecting frame 62 is reserved, the clamping column 64 can be flexibly stretched and contracted along the channel, the elastic stretching and contraction of the spring 65 is provided with space, at the same time, the movement direction of the clamping column 64 is limited, the installation failure caused by the deviation of the clamping column is avoided, and the smooth operation of the quick release structure is ensured.

[0031] Both clamping columns 64 are provided in a wedge shape, and a clamping groove matched with the two clamping columns 64 is formed in the inner wall of the air inlet pipe 4; the clamping column 64 is designed in a wedge shape, and is elastically supported by the spring 65, during installation, the filter pipe 61 only needs to be pushed into the air inlet pipe 4, the clamping column 64 is pressed and contracted by the inner wall of the air inlet pipe, when reaching the clamping groove position, the spring 65 pushes the clamping column 64 to pop out and embed into the clamping groove, and quick locking is realized; during disassembly, the clamping column 64 can be separated from the clamping groove only by rotating the filter pipe 61, without the need of complex tools such as wrenches and screwdrivers, the problem of complicated disassembly and assembly of the traditional bolt fixed filtering structure is solved.

[0032] The adjusting assembly 7 comprises a gear ring 71 fixedly mounted on the outer wall of one of the connecting pipes 33, the side wall of the second side plate 32 is fixedly mounted with a mounting frame 72, the mounting frame 72 is rotatably mounted with a rotating shaft 73 between the second side plate 32, the outer wall of the rotating shaft 73 is fixedly mounted with a gear 74 corresponding to the gear ring 71, the mounting frame 72 is fixedly mounted with a motor 75, and one end of the rotating shaft 73 is connected with the output shaft of the motor 75; the motor 75 is started, the output shaft of the motor 75 drives the rotating shaft 73 to rotate, the rotating shaft 73 penetrates the shaft hole of the mounting frame 72, the gear 74 on the outer wall of the rotating shaft 73 is in meshing transmission with the gear ring 71 on the outer wall of the connecting pipe 33, and then drives the rotating around the connecting pipe 33 and the heat exchange pipe 35, the time and area of heat exchange are improved, and the waste gas is disturbed, so that the heat exchange effect with the heat exchange pipe 35 is improved.

[0033] The shaft hole on the mounting frame 72 corresponds to the rotating shaft 73, the rotating shaft 73 penetrates the inside of the shaft hole, the motor 75 is a servo motor, and the motor 75 is electrically connected with an external controller, and the angle of the heat exchange assembly 3 is driven and adjusted through the motor 75; the shaft hole on the mounting frame 72 is accurately matched with the rotating shaft 73, after the rotating shaft penetrates the shaft hole, the inner wall of the shaft hole forms a "radial limit" to the rotating shaft, strictly limits the deviation range of the rotating shaft, ensures that the gear 74 and the gear ring 71 always maintain accurate meshing state, avoids the meshing gap from becoming larger, transmission from being stuck or wear from being aggravated due to the shaft body shaking, guarantees the accuracy and smoothness of the angle adjustment, and the motor 75 is preferably a servo motor, can be electrically connected with the external controller, can automatically adjust the rotating speed according to the process parameters of chemical production, and realizes real-time optimization of heat exchange efficiency.

[0034] A plurality of guide vanes 9 are uniformly distributed along the circumference of the mounting ring 8, and the guide vanes 9 and the mounting ring 8 are integrally formed, and the surface of the guide vane 9 is provided with an arc-shaped guide surface; the connecting pipe 33 rotates at the same time, and the guide vane 9 on the outer wall of the mounting ring 8 starts to rotate, so that the waste gas flows back in the inside of the shell body 1, further improves the heat exchange effect, prevents the heat energy from being lost greatly, and saves energy.

[0035] The working principle of the present application is as follows: The device is fixed and installed, and the preheating preparation is prepared: the shell body 1 is fixed and installed through the two supports 2 at the bottom, the supports 2 and the shell body 1 are connected by welding, and the anti-skid pads at the bottom can enhance the stability of the device, so that displacement or vibration does not occur during operation; the heat preservation layer on the outer wall of the shell body 1 can reduce heat loss, create a heat preservation environment for the heat exchange process in advance, and ensure the energy utilization efficiency. At the same time, the first side plate 31 and the shell body 1 are fixed by the locking bolt 36, the diameter of the first side plate 31 is larger than the outer wall of the shell body 1 and is sleeved on one side of the outer wall, the diameter of the second side plate 32 is smaller than the inner wall of the shell body 1 and is tightly fitted with the inner wall, and the double sealing structure is formed by cooperating the sealing ring 321 on one side of the second side plate 32 and the sealing bearing 34 at the connecting position of the connecting pipe 33, the first side plate 31 and the second side plate 32, so as to prevent the subsequent medium from leaking and ensure the safety of the device operation.

[0036] The waste gas in the chemical production enters the inside of the shell body 1 through the inlet pipe 4, and needs to be pretreated by the filter assembly 6 during the entering process. The filter plate 66 in the filter pipe 61 can accurately intercept dust, particulate matter and other impurities in the medium, so as to avoid the impurities adhering to the inner wall of the heat exchange pipe 35 to cause blockage or corrosion; the fixation of the filter assembly 6 relies on the cooperation of the clamping columns 64 on both sides of the connecting frame 62 and the clamping grooves on the inner wall of the inlet pipe 4, the spring 65 between the clamping column 64 and the mounting block 63 provides elastic support, the clamping column 64 is extruded and shrunk during installation, and is automatically popped out and locked after being embedded in the clamping groove; when disassembling, the filter pipe 61 can be taken out by only pressing the clamping column 64, so that the filter plate 66 can be conveniently cleaned or replaced, and the smooth flow of the medium is ensured.

[0037] The two connecting pipes 33 in the heat exchange assembly 3 are respectively used as the input channel and the output channel of the heat exchange medium, and the heat exchange pipe 35 is fixedly connected between the two connecting pipes 33, and the heat exchange pipe 35 is a continuous S-shaped bent pipe, which can greatly extend the medium flow path in the limited outer shell 1 space. The heat exchange medium to be exchanged flows in the outer shell 1, and forms reverse or same direction heat transfer with the heat exchange medium circulating in the inside of the heat exchange pipe 35, the continuous S-shaped structure prolongs the contact time of the two kinds of media, so that the heat transfer is more sufficient; at the same time, the heat preservation layer of the outer wall of the outer shell 1 continuously reduces the heat loss, further improves the energy utilization efficiency, and realizes the temperature regulation target required by the chemical process.

[0038] The motor 75 is a servo motor and is electrically connected with an external controller, and after starting, the output shaft of the motor 75 drives the rotating shaft 73 to rotate, the rotating shaft 73 penetrates the shaft hole of the mounting frame 72, the gear 74 on the outer wall thereof meshes with the gear ring 71 on the outer wall of the connecting pipe 33 to drive the connecting pipe 33 and the heat exchange pipe 35 to rotate around the axis, thereby improving the heat exchange time and area, and at the same time, the exhaust gas is disturbed to improve the heat exchange effect with the heat exchange pipe 35.

[0039] When the connecting pipe 33 rotates, the guide fan blade 9 on the outer wall of the mounting ring 8 starts to rotate, so that the exhaust gas flows back in the inside of the outer shell 1, further improves the heat exchange effect, prevents the heat energy from being lost greatly, and saves energy.

[0040] The medium completing heat exchange is discharged from the exhaust pipe 5 on the other side of the bottom of the outer shell 1, enters the subsequent chemical process link, and forms a complete heat exchange cycle, when deep maintenance is required, only the locking bolt 36 between the first side plate 31 and the outer shell 1 is loosened, the entire heat exchange assembly 3 can be taken out from one side of the outer shell 1, without disassembling other core structures, thereby reducing the difficulty of maintenance operation, if the filter plate 66 of the filter assembly 6 needs to be replaced or the filter pipe 61 needs to be cleaned, the filter assembly can be disassembled according to the foregoing disassembly mode, thereby greatly shortening the maintenance time and reducing the influence on production continuity, when the heat exchange assembly 3 is taken out, the scraping ring 324 on the second side plate 32 moves, and in the moving process, the impurities adhered to the inner wall of the outer shell 1 are scraped off, thereby reducing the difficulty of subsequent maintenance and improving the use effect.

[0041] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the protection scope of the technical solutions of the embodiments of the present application.

Claims

1. A chemical heat exchanger for chemical production, characterized in that, The device includes an outer shell (1), with two supports (2) fixedly installed on the bottom of the outer wall of the outer shell (1). A heat exchange assembly (3) for heat exchange is provided inside the outer shell (1). The heat exchange assembly (3) includes a first side plate (31) and a second side plate (32) arranged opposite to each other. A connecting pipe (33) is installed through the first side plate (31) and the second side plate (32). The outer walls of the two connecting pipes (33) are installed on the corresponding first side plate (31) and second side plate (32) through sealed bearings (34). A heat exchange tube (35) is fixedly installed between the two connecting pipes (33). The heat exchange tube (35) is a continuous S-shaped bend. Two locking bolts (36) are installed between the first side plate (31) and the outer shell (1). An air inlet pipe (4) is fixedly installed on one side of the top of the outer wall of the outer shell (1), and an exhaust pipe (5) is fixedly installed on the other side of the bottom of the outer wall of the outer shell (1). The air intake pipe (4) is provided with a filter assembly (6) for filtering exhaust gas. The heat exchange assembly (3) is provided with an adjustment assembly (7) for adjusting the heat exchange efficiency. The adjustment assembly (7) includes a toothed ring (71) fixedly installed on the outer wall of one of the connecting pipes (33). The side wall of the second side plate (32) is fixedly installed with a mounting bracket (72). A rotating shaft (73) is rotatably installed between the mounting bracket (72) and the second side plate (32). A gear (74) corresponding to the toothed ring (71) is fixedly installed on the outer wall of the rotating shaft (73). A motor (75) is fixedly installed on the mounting bracket (72). The output shaft of the motor (75) is connected to one end of the rotating shaft (73). An installation ring (8) is installed on the heat exchange assembly (3). Multiple guide fan blades (9) are installed on the outer wall of the installation ring (8).

2. A chemical heat exchanger for chemical production according to claim 1, characterized in that, The bottom of the support (2) is provided with an anti-slip pad, and the support (2) is welded to the outer shell (1). The outer wall of the outer shell (1) is provided with a heat insulation layer.

3. A chemical heat exchanger for chemical production according to claim 2, characterized in that, The diameter of the first side plate (31) is larger than the outer wall of the outer shell (1), and the first side plate (31) is fitted onto one side of the outer wall of the outer shell (1). The diameter of the second side plate (32) is smaller than the inner wall of the outer shell (1), and the outer wall of the second side plate (32) is tightly fitted to the inner wall of the outer shell (1).

4. A chemical heat exchanger for chemical production according to claim 3, characterized in that, The heat exchange assembly (3) also includes a sealing ring (321) fixedly installed on one side of the second side plate (32). The inner wall of the second side plate (32) is provided with an installation groove (322). A retaining ring (323) is embedded in the installation groove (322), and a scraper ring (324) is installed on the retaining ring (323).

5. A chemical heat exchanger for chemical production according to claim 4, characterized in that, The filter assembly (6) includes a filter tube (61) that is detachably installed inside the air intake pipe (4). A connecting frame (62) is fixedly connected inside the filter tube (61). An installation block (63) is fixedly installed inside the connecting frame (62). A locking post (64) is slidably inserted on both sides of the inside of the connecting frame (62). A spring (65) is installed between the two locking posts (64) and the installation block (63). A filter plate (66) for filtering impurities is inserted inside the filter tube (61).

6. A chemical heat exchanger for chemical production according to claim 5, characterized in that, Both of the locking pins (64) are wedge-shaped, and the inner wall of the air intake pipe (4) is provided with a locking groove that matches the two locking pins (64).

7. A chemical heat exchanger for chemical production according to claim 6, characterized in that, The mounting bracket (72) has a shaft hole corresponding to the rotating shaft (73), the rotating shaft (73) passes through the inside of the shaft hole, the motor (75) is a servo motor, and the motor (75) is electrically connected to an external controller, and the angle of the heat exchange component (3) is adjusted by driving the motor (75).

8. A chemical heat exchanger for chemical production according to claim 7, characterized in that, Multiple guide fan blades (9) are evenly distributed along the circumference of the mounting ring (8), and the guide fan blades (9) and the mounting ring (8) are integrally formed. The surface of the guide fan blades (9) is provided with an arc-shaped guide surface.

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