Double-coil riser heat exchanger with enhanced heat transfer effect

Abstract

To enhance the heat transfer effect of a riser heat exchanger.SOLUTION: A riser heat exchanger includes: a riser body, wherein an upper flange is fixedly mounted on the outer side of an upper end of the riser body, an inner cylindrical sleeve is provided in the riser body, a heat exchange pipe body positioned in the riser body is provided on the outer side of the inner cylindrical sleeve, the heat exchange pipe body has a drainage port provided at the front side of an upper end thereof and a water supply port provided at the front side of a lower end thereof; an auxiliary assembly is mounted in the inner cylindrical sleeve and located on the inner side of the heat exchange pipe body, the auxiliary assembly including a first mounting plate, a support block, a fixing plate, a heat conduction fin, a fixing bolt and a threaded hole; and an upper fixing ring mounted at an inner upper end of the riser body. The double-coiled riser heat exchanger, in order to improve overall heat transfer enhancement effect, enables functioning to effectively disturb raw gas entering the riser body, with the heat conduction fin assisting in heat conduction, and also enables avoiding unifying an entire heat conduction structure.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to the related technical field of riser tube heat exchangers, particularly to heat transfer enhancing effects. It is a double coil type riser heat exchanger. [Background technology]

[0002] The riser is attached to the top of the coke oven and serves as a coking chamber for extracting the crude gas from the coke oven. Coke ovens are equipped with auxiliary equipment. When exhausting smoke from a coke oven, it is exhausted through a riser pipe. The crude gas generated from the furnace contains a large amount of residual heat. The riser pipe is made up of a cylindrical body, a bent pipe, and a flap. The riser pipe is made of welded cast iron or steel plates. It is a cylinder lined with clay bricks on the inside. It has a jacket or spiral tubular structure. The sensible heat of the raw gas is recovered by passing water or an organic heat medium through the jacket or spiral tube. Some of them are.

[0003] The Chinese patent application with publication number CN104152157A discloses a riser tube heat exchanger for a coke oven. The riser tube heat exchanger has a riser tube body and a flue in the center of the riser tube body. The riser body is provided with an upper flue flange at its upper end and a lower flue flange at its lower end. The riser pipe body includes, in order from the inside to the outside, an inner layer portion, a heat exchange portion, and a housing. The layer portion includes, from the inside to the outside, a heat conductive layer, a high-temperature corrosion resistant layer, and a metal structure layer. a conductive layer, a high-temperature corrosion-resistant layer, and a metal structure layer are laminated to form an inner layer portion, and the heat exchange portion The heat transfer layer includes a group of heat exchange tubes, and the surface of the heat transfer layer that does not contact the high-temperature corrosion-resistant layer is connected to the flue. The surface of the flue is smooth and seamless, and is coated with a crystalline silicon powder coating. It can effectively alleviate the slagging phenomenon on the flue surface, and reduce the thermal energy It has good absorption effect, stable and reliable operation, and can avoid cyclic thermal stress damage. This can be done.

[0004] A Chinese patent application with publication number CN104694139A is in the field of flow guides and heat exchangers. In particular, the present invention discloses a coke oven rough gas heat exchanger equipped with a flow guider. A coke oven heat exchanger body is provided, and a flue gas inlet is provided at a lower end of the coke oven heat exchanger body. An exhaust gas outlet is provided on the same axis as the exhaust gas inlet. A heat exchange passage is provided between the gas outlet and the gas supply passage, and a flow guide device is provided in the heat exchange passage. The flow guide device includes a central shaft, and an axis of the central shaft and an axis of the heat exchange passage are aligned. The central shaft is provided with a guide vane, and the guide surface of the guide vane is This coke oven rough gas guider forms an oblique angle with the rough gas guide vane. The gas flow is changed from the conventional linear laminar flow, which is roughly vertically upward, to a spiral mixed flow. This achieves the purpose of uniformly dispersing the heat of the rough gas inside the riser pipe to the inner wall of the riser pipe during flow. This is advantageous in increasing the heat exchange capacity of the riser pipe heat exchanger.

[0005] The above-mentioned prior art solutions have the following drawbacks: Since the flow of coarse gas cannot be disturbed, the overall heat exchange effect decreases. In addition, the overall heat conduction structure becomes unified. To achieve this, a double coil riser heat exchanger with heat transfer enhancement is provided. Summary of the Invention [Problem to be solved by the invention]

[0006] The object of the present invention is to effectively disturb the rough gas entering the riser body, as proposed in the background art above. As a result, the flow of the rough gas becomes stable, the overall heat exchange effect decreases, and In order to solve the problem of the entire heat conduction structure being unified, a double core with heat transfer enhancement effect is used. The present invention aims to provide a roll-type riser heat exchanger. [Means for solving the problem]

[0007] To achieve the above objectives, the technical solution provided by the present invention has the effect of enhancing heat transfer. A double coil type riser pipe heat exchanger, comprising: The upper flange is fixedly attached to the outside of the upper end, and the lower flange is fixed to the outside of the lower end. a riser body fixed to the riser pipe, the riser body having an inner sleeve therein, The heat exchange tube body is provided on the outside of the riser tube body, and the heat exchange tube body has an upper end in front of the riser tube body. the riser pipe body having a drain port on the side and a water supply port on the front side of the lower end; an auxiliary assembly mounted within the inner sleeve and located inside the heat exchange tube body, comprising: A first mounting plate, a support block, a fixing plate, a heat conduction fin, a fixing bolt, and a screw hole. the auxiliary assembly including: It is attached to the upper end of the riser body, and a second mounting plate is fixedly attached at an equal angle to the outside of the lower end. an upper fixing ring attached to the second mounting plate, the upper fixing ring being closer to the central axis of the riser body; A mounting tab is fixedly attached within the end portion, and a connecting plate, a disturbing plate, and a disturbing plate are attached within the mounting tab. said upper fixed ring having a disturbance assembly including a rod connected thereto; A scraping plate is fixedly attached to the outside of the lower end of the second mounting plate and is provided on the outside of the bottom. a lower retaining ring; A first pre-formed groove is formed in the upper flange, and a spring is disposed in the first pre-formed groove. A fixed post is connected to the outside of the end of the upper flange near the central axis of the bolt.

[0008] Preferably, the first mounting plate is supported on the outside of an end portion of the heat exchange tube body that is distant from the central axis of the heat exchange tube body. The block is fixedly attached, and the outer side of the support block is similarly attached to the outer side of the first mounting plate. A fixed plate is provided, and a heat conduction fin is inserted inside the fixed plate, and the inside of the fixed plate and the heat A fixing bolt for mounting is passed through the conductive fin.

[0009] Preferably, the support blocks are arranged at equal intervals in the vertical direction on the outer side of the first mounting plate. The vertical section of the first mounting plate is "L" shaped, and the support block and the fixed plate are arranged with a gap between them. The riser body is provided with a prefabricated space that facilitates the installation of the heat exchanger body. .

[0010] Preferably, the fixing plates and the heat conduction fins are arranged in one-to-one correspondence, and the heat conduction fins is located in the gap between adjacent turns of the heat exchange tube body, and a first mounting plate is located in the heat conduction fin A screw hole that fits a fixing bolt is formed near the

[0011] Preferably, the fixed column forms an extension and contraction structure with the upper flange through a first pre-formed groove; The inside of the outer side of the upper fixing ring has a second pre-formed groove at an equal angle that fits the fixing column. The fixing post is engaged with the upper fixing ring via a second pre-formed groove.

[0012] Preferably, the diameter of the upper fixing ring is larger than the diameter of the lower fixing ring, and The scraper plate attached to the outside of the lower end of the set ring comes into contact with the inner wall of the inner sleeve and removes the deposits. It acts like a scraper.

[0013] Preferably, a fixed insertion rod is inserted through the mounting tab and attached, and the outside of the fixed insertion rod is A connecting nut is threadedly attached to the side end, and the disturbance assembly is attached and fixed. It functions like this.

[0014] Preferably, a disturbance plate is integrally fixed to the outside of the connecting plate, and the connecting plate of the riser pipe body A disturbance rod is fixedly attached to the outside of the end near the central axis.

[0015] Preferably, both the connecting plate and the disturbing plate are aligned with the central axis of the riser body of the second mounting plate. The disturbance bars are arranged symmetrically with respect to the vertical central axis of the disturbance plate. It is provided.

[0016] Preferably, the agitating plates are arranged inclined upward, and the agitating plates are screwed in the inner cylindrical sleeve. They are dispersed upward in a spiral pattern.

[0017] Preferably, the disturbance plate has a plurality of ventilation holes extending in the vertical direction.

[0018] Preferably, an internal U-shaped coil is provided inside the inner cylindrical sleeve, and the internal U Saturated steam is circulated through the coil.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: The double coil type riser heat exchanger has a riser body that is It functions to effectively disturb the coarse gas entering the chamber, and the heat conduction fins also assist in heat conduction. This can help to avoid unifying the entire heat conduction structure. By combining the coil and the heat exchange tube body, the overall heat transfer effect is significantly improved. To make.

[0020] 1, a second mounting plate, a disturbing plate and a disturbing rod are provided, and both the connecting plate and the disturbing plate are The mounting plates are arranged at equal intervals in the vertical direction on the side closer to the central axis of the riser pipe body, and The agitator plates are arranged inclined upward, and the agitator plates are arranged in a spiral shape in the inner sleeve. Due to the dispersion, before use, the connecting plate and the stirring rod are fixed by the fixed insert rod and the connecting nut. The disturbance plate is spirally attached upwards to the outside of the second mounting plate. The disturbance plates outside the mounting plate are arranged at equal intervals, and the height of four pairs of disturbance plates adjacent in the horizontal direction is By increasing the number of stirring bars, the contact between the stirring plates and the rough gas is promoted. The stirring rod can stir the coarse gas, and the vent hole increases the speed at which the coarse gas passes through the inner sleeve. Therefore, it is possible to recover the heat of the raw gas through sufficient heat exchange and quickly discharge it. It is easy to improve the overall heat transfer enhancing effect.

[0021] 2. A spring, a fixed column and an upper fixed ring are provided, and the fixed column is fixed to the upper part by the first pre-formed groove. The flange and the expansion structure are formed, and the fixed column is connected to the upper fixed ring through the second pre-fabricated groove. The spring is connected by engagement, so that it recovers from deformation and is fixed when installed. Move the column closer to the upper fixing ring and insert the column into the upper fixing ring through the second pre-cut groove. This allows for easy installation and fastening of the upper locking ring, and also allows for the second The fixing plate, the turbulator assembly and the scraper plate are easily mounted within the inner sleeve 4.

[0022] 3. The first mounting plate, the fixing plate and the heat conduction fin are provided, and the support block is the first mounting plate. The first mounting plate has an L-shaped vertical cross section and is arranged at equal intervals on the outside of the plate. The support block and the fixed plate are arranged at an interval, and the heat transfer fins are provided between the heat exchange tubes. By being located in the gap between adjacent turns of the body, the first mounting plate and the support block Therefore, in order to properly support and mount the heat exchange tube body, the heat exchange tube body is attached to the inner sleeve and It is easy to install stably in a prefabricated space, and the fixing plate and fixing bolts allow for stable installation. The heat transfer fins can be easily fixed and installed in the gaps between adjacent turns of the heat exchange tube body. In this case, the fixing plate effectively assists in heat conduction, and the entire heat conduction structure is unified. can be avoided.

[0023] 4. Conventional riser heat exchangers only exchange heat from the rough gas near the wall. In this application, the installation of a disturbance assembly and an internal U-shaped coil allows for the rough gas in each section to be The inner U-shaped coil maximizes the use of radiant heat from the central raw gas for superheating. Steam is generated and the heat of the raw gas is utilized to the fullest extent, realizing a variety of products and heat conduction structures. Ta. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a schematic diagram of the overall exploded structure of the riser pipe body and the second mounting plate connected together according to the present invention; FIG. [Figure 2] 1 is a schematic diagram of the overall structure of the heat exchange tube body and auxiliary assembly of the present invention connected together; FIG. [Figure 3]FIG. 10 is a schematic diagram of the entire partial structure of the second mounting plate and the disturbance assembly of the present invention connected together. [Figure 4] 1 is a schematic diagram of the overall structure of an auxiliary assembly of the present invention; [Figure 5] 1 is a partial cross-sectional view of the entire structure of the present invention in which the fixed column and the upper fixed ring are connected. FIG. [Figure 6] FIG. 2 is an enlarged structural schematic diagram of A in FIG. 1 of the present invention. [Figure 7] FIG. 3 is an enlarged structural schematic diagram of B in FIG. 2 of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] The following description will be given in conjunction with the accompanying drawings of the embodiments of the present invention. The described embodiments are not all embodiments of the present invention, but are merely examples. It is clear that these are merely some examples. All other embodiments that can be obtained without creative work fall within the scope of protection of the present invention.

[0026] Referring to Figures 1 to 7, the technical solution provided by the present invention is a double core with heat transfer enhancement effect. The double coil type riser heat exchanger has an upper end outside the upper end. The flange 2 is fixedly attached, and the lower flange 3 is fixedly attached to the outside of the lower end. The riser pipe body 1 is provided with an inner sleeve 4 inside, and the outer surface of the inner sleeve 4 is The heat exchange pipe body 5 is provided in the riser pipe body 1, and the heat exchange pipe body 5 has an exhaust port at the front of the upper end. The riser pipe body 1 has a water inlet 6 and a water supply port 7 at the front of the lower end, and an inner sleeve 4 an auxiliary assembly 8 inside the heat exchange tube body 5, A plate 801, a support block 802, a fixed plate 803, a heat conduction fin 804, and a fixed bolt 805 and a screw hole 806, and the first mounting plate 801 A support block 802 is fixedly attached to the outside of the end of the heat exchange tube body 5 away from the central axis. The outside of the support block 802 is similarly provided with a fixing plate 803 on the outside of the first mounting plate 801. 803 is provided, and heat conduction fins 804 are inserted inside the fixing plate 803. The fixing bolts 805 for mounting are inserted through the inside of the heat conducting fins 804 and the inside of the heat conducting fins 804. The conductive fin 804 has a screw hole near the first mounting plate 801 that fits a fixing bolt 805. 806 is formed in the riser pipe body 1, and a pre-formed space 9 is formed in the riser pipe body 1 to facilitate the installation of the heat exchange pipe body 5. A first pre-formed groove 10 is formed in the upper flange 2, and a bar is inserted in the first pre-formed groove 10. The spring 11 is arranged, and a fixed column 12 is attached to the outside of the end of the spring 11 near the central axis of the upper flange 2. is connected.

[0027] Furthermore, an upper fixing ring 13 is attached to the upper end of the riser pipe body 1, and the upper fixing ring A second mounting plate 15 is fixedly attached to the outside of the lower end of the second mounting plate 13 at an equal angle. A mounting tab 16 is fixedly attached to the end of the riser pipe body 1 near the central axis of the riser pipe body 1. The attachment tab 16 contains a disturbance assembly including a connection plate 1901, a disturbance plate 1902, and a disturbance rod 1903. The assembly 19 is connected, and the disturbance plate 1902 is fixed integrally to the outside of the connection plate 1901. A disturbing rod 1903 is fixedly attached to the outer side of the end of the connecting plate 1901 near the central axis of the riser pipe body 1. The fixing tab 16 is fitted with a fixed insertion rod 17 inserted therethrough. A connecting nut 18 is threadedly attached to the outer end of 17, and a disturbance assembly 19 is attached. The lower fixing ring 20 is attached to the outside of the lower end of the second mounting plate 15. The lower fixing ring 20 is fixedly attached, and a scraping plate 21 is provided on the outside of the bottom of the lower fixing ring 20. A support bracket is provided at the bottom of the cylindrical sleeve 4 to support the scraper plate 21. This combination provides a double coil riser heat exchanger with enhanced heat transfer. The exchanger is configured.

[0028] When using a double coil type riser tube heat exchanger with this heat transfer enhancement effect, specifically: First, as shown in Figures 1, 2 and 4, fasten the fixing screws to the upper flange 2 and the lower flange 3. The riser pipe body 1 is screwed into the upper flange 2 and the lower flange 2 in order. The coke oven is fixed to the top of the furnace, and the drain outlet 6 and the water inlet 7 are connected to the outside. When using the heat exchanger, water or an organic heat medium is introduced into the heat exchanger tube body 5 through the water inlet 7. At the same time, the coke oven gas is injected into the riser pipe body 1 from the lower end of the riser pipe body 1. In this case, the heat exchange tube body 5 can exchange heat with the raw gas. As shown in FIG. 1, support blocks 802 are arranged at equal intervals in the vertical direction on the outside of the first mounting plate 801. The first mounting plate 801 has an L-shaped vertical cross section, and the support block 802 and the fixing plate 803 are arranged at an interval, and the fixing plate 803 and the heat conduction fin 804 correspond one to one. The heat transfer fins 804 are located in the gaps between the adjacent turns of the heat exchange tube body 5. The first mounting plate 801 and the support block 802 contact all the adjacent turns. In order to properly support and mount the heat exchange tube body 5, the heat exchange tube body 5 is attached to the inner sleeve 4 and It is easy to stably install in the prefabricated space 9, and the fixing plate 803 and fixing bolt The heat transfer fins 804 are fixed to the gaps between the adjacent turns of the heat exchange tube body 5 by the bolts 805. In this case, the fixing plate 803 effectively assists in heat conduction. This avoids the unification of the entire heat transfer structure, making the heat exchange tube body 5 more After the heat exchange is completed, the water or organic heat medium is discharged through the drain outlet 6. It is discharged from the heat exchange tube body 5.

[0029] Specifically, as shown in FIGS. 1, 3 and 6, a connecting plate 1901 and a disturbance plate 1902 Both are arranged at equal intervals in the vertical direction on the side of the second mounting plate 15 closer to the central axis of the riser pipe body 1. The disturbance plates 1902 are arranged tilted upward, and a plurality of the disturbance plates 1902 are The particles are dispersed upward in a spiral manner in the inner sleeve 4, and the agitation plate 1902 has multiple particles in the vertical direction. Before use, attach the connecting plate 1901 to the inside of the mounting tabs 16, as it has several ventilation holes. After that, insert the fixed insertion rod 17 into the connecting plate 1901 and the mounting tab 16, and then tighten the connecting nut. The bolt 18 is attached to the outside of the fixed insertion rod 17. This allows the fixed insertion rod 17 and the connecting nut The connecting plate 1902 and the disturbance plate 1902 are spirally attached to the second mounting plate 15 by the screw 18. The second mounting plate 15 is easily and stably mounted on the outside, and the disturbance plates 1902 on the outside are spaced at equal intervals. The height of the horizontally adjacent disturbance plates 1902 gradually increases, In this case, the contact between the rough gas and the stirring plate 1902 and the stirring rod 1903 is promoted. The rod 1903 can disturb the coarse gas, and the vent hole can control the passing speed of the coarse gas in the inner sleeve. Therefore, it is necessary to recover the heat of the raw gas through sufficient heat exchange and quickly discharge it. This makes it easy to improve the overall heat transfer strengthening effect.

[0030] Furthermore, as shown in FIG. 1, an internal U-shaped coil 22 is provided inside the inner cylindrical sleeve 4. Saturated steam is circulated through the inner U-shaped coil 22. By combining the pipe 22 with the heat exchange pipe body 5, the overall heat transfer effect is significantly improved. Specifically, in this embodiment, the inner U-shaped coil 22 is attached to the upper end of the inner sleeve 4. Then, insert the second mounting plate 15 into the second mounting plate 15 while avoiding the disturbance part 19, and insert the upper end of the internal U-shaped coil 22. The heat exchange tube body 5 is provided with an exhaust port 221 and an intake port 222. Saturated water at 0.6 MPa enters the water inlet 7 of the heat exchange tube body 5, generating a water-steam mixture. The air is discharged from the drain port 6 and is supplied to the intake port 222 of the internal U-shaped coil 22 at a pressure of 0.6 MPa. Saturated steam at 165℃ enters the chamber, and superheated steam at 0.6MPa and 350℃ or higher is generated. The heat exchanger 22 is discharged from the exhaust port 221 of the U-shaped coil 22. If the valve of the main body 5 is damaged and needs to be repaired, the internal U-shaped coil 22 can be easily repaired. Since superheated steam is generated by exchanging heat with gas, the heat exchanger is prevented from running dry. The converter's service life is extended.

[0031] Furthermore, the drain outlet 6 and the water supply inlet 7 are connected to external piping. Water or an organic heat transfer medium is injected into the heat exchange tube body 5 through the inlet 7, and the The raw gas is injected into the riser pipe body 1 from the lower end of the riser pipe body 1. In this case, the heat exchange pipe body 5 can exchange heat with the raw gas.

[0032] This allows the heat exchange tube body 5 to perform heat exchange more effectively, and the water after heat exchange is completed Alternatively, the organic heat transfer medium is discharged from the heat exchange tube body 5 through the drain port 6 .

[0033] Specifically, as shown in FIGS. 1 and 5, the fixed post 12 is inserted into the upper part of the first prefabricated groove 10. The flange 2 and the expansion and contraction structure are formed, and the fixed column 12 is connected to the upper part through the second pre-made groove 14. Since the lower fixing ring 20 is connected by engagement with the fixing ring 13, , the second mounting plate 15 and the second pre-fabricated groove 14 are inserted into the riser body 1 in sequence, and in this case, the fixed The fixed post 12 is pressed against the upper fixing ring 13 and slides within the upper flange 2, and the spring 11 When the upper fixing ring 13 is fully inserted into the riser pipe body 1, the spring 11 is deformed. The fixing column 12 is moved to the side closer to the upper fixing ring 13, and the fixing column is attached to the second existing The upper fixing ring 13 is engaged with the upper fixing ring 13 through the groove 14. It is easy to fix and install, and further includes the second fixing plate 15, the disturbance assembly 19 and the scraping plate. The scraper plate 21 is easily attached to the inner sleeve 4. Then, the bottom of the scraper plate 21 is attached to the support bracket. When removing the upper fixing ring 13, pull it up and then remove the second mounting plate. 15 and the lower fixing ring 20 move the scraping plate 21 upward. and the inner wall of the inner sleeve 4 come into contact with each other, and the adhesion on the inner wall of the inner sleeve 4 is removed for ease of use. The above is a double coil type riser tube heat exchanger with heat transfer enhancement effect. do.

[0034] All standard parts used in this invention are commercially available and non-standard parts are as described in the specification and drawings. The specific connection method of each part is the same as that generally used in the prior art. Machinery, parts and equipment are secured by bolts, rivets, welding and other conventional means. In both cases, conventional model numbers are used, and the circuit connections are conventional. Since the ordinary connection method of the above is adopted, detailed explanations will be omitted here. Anything not mentioned is prior art known to those skilled in the art.

[0035] The present invention has been described in detail with reference to the above-described embodiments. However, those skilled in the art will be able to easily understand each of the above-described embodiments. Modifying the technical means described in or replacing some of its technical features with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are covered by the present invention. should be included within the scope of protection. [Explanation of symbols]

[0036] [Explanation of symbols] 1. Ascending pipe body 2 Upper flange 3 Lower flange 4 Inner sleeve 5 Heat exchange tube body 6 Drain port 7 Water inlet 8 Auxiliary Assembly 801 First mounting plate 802 Support Block 803 Fixed plate 804 Heat conduction fin 805 Fixing bolt 806 screw hole 9 Ready-made spaces 10 First prefabricated groove 11 Spring 12 Fixed column 13 Top Permalink 14 Second prefabricated groove 15 Second mounting plate 16 Mounting tab 17 Fixed insertion rod 18 Connecting nut 19 Disturbance Assembly 1901 Connection board 1902 Disturbance board 1903 Disturbing rod 20 bottom permalink 21 scraping board 22 Internal U-shaped coil 221 Exhaust port 222 Air intake

Claims

1. A double coil riser heat exchanger with heat transfer enhancement effect, An upper flange (2) is fixedly attached to the outside of the upper end, and a lower flange (3) is fixedly attached to the outside of the lower end. (3) is fixedly attached to the riser body (1), and an inner sleeve (4) is installed inside. The heat exchange tube body (5) is provided on the outside of the inner sleeve (4) and is located in the riser tube body (1). The heat exchange tube body (5) is provided with a drain port (6) at the front of the upper end and a drain port (7) at the lower end. The riser body (1) has a water supply port (7) provided in front of it; An auxiliary assembly (5) is mounted in the inner sleeve (4) and is located inside the heat exchange tube body (5). The suction cup (8) comprises a first mounting plate (801), a support block (802), and a fixed plate (8 03), heat conduction fins (804), fixing bolts (805), and screw holes (806). said auxiliary assembly (8) including The riser body (1) is attached at its upper end, and a second mounting plate (15) is attached at the outer side of its lower end. an upper fixing ring (13) fixedly attached to said second mounting plate (15); ) has a mounting tab (16) fixedly attached to the end of the riser pipe body (1) near the central axis thereof. The mounting tab (16) is provided with a connecting plate (1901), a disturbing plate (1902) and a disturbing rod ( said upper fixed ring (13) to which a disturbance assembly (19) including a turbulence assembly (1903) is connected; A scraping plate ( a lower fixing ring (20) provided with a Including, A first pre-formed groove (10) is formed in the upper flange (2), and the first pre-formed groove (10) A spring (11) is disposed within the upper flange (2), and the end of the spring (11) is located near the central axis of the upper flange (2). A fixed column (12) is connected to the outside of the A double coil type riser tube heat exchanger having a heat transfer enhancing effect.

2. On the outside of the end of the first mounting plate (801) away from the central axis of the heat exchange tube body (5), The support block (802) is fixedly attached to the outside of the support block (802). Similarly, a fixed plate (803) is provided on the outside of the first mounting plate (801), and said fixed plate A heat conduction fin (804) is inserted inside the fixing plate (803), and the heat conduction A fixing bolt (805) for mounting is inserted into the fin (804).

2. The double-coil type riser pipe heat exchanger having a heat transfer enhancing effect according to claim 1. 。

3. The support blocks (802) are arranged at equal intervals in the vertical direction on the outside of the first mounting plate (801). The vertical section of the first mounting plate (801) is "L" shaped, and the support block (802) ) and the fixing plate (803) are arranged at an interval, and the riser pipe body (1) has a heat exchange pipe main body. A pre-formed space (9) is formed to facilitate the attachment of the body (5).

3. The double-coil type riser pipe heat exchanger having a heat transfer enhancing effect according to claim 2. 。

4. The fixing plates (803) and the heat conducting fins (804) are arranged in one-to-one correspondence, and the heat conducting The fins (804) are located in the gaps between the adjacent turns of the heat exchange tube body (5) and are used for heat conduction. Within the fin (804) there is a bolt (805) that fits into the first mounting plate (801) near the first mounting plate. A screw hole (806) is formed.

4. The double-coil type riser pipe heat exchanger having a heat transfer enhancing effect according to claim 3. 。

5. The fixed post (12) is connected to the upper flange (2) through the first pre-fabricated groove (10) in a telescopic structure. The upper fixing ring (13) has a second fixing post (12) inside the outer side thereof. The pre-made grooves (14) are formed at equal angles, and the fixed post (12) is inserted through the second pre-made groove (14). It is connected to the upper fixing ring (13) by engagement.

2. The double-coil type riser pipe heat exchanger having a heat transfer enhancing effect according to claim 1. 。

6. The diameter of the upper fixing ring (13) is larger than the diameter of the lower fixing ring (20), The scraping plate (21) provided on the outside of the lower end of the fixing ring (20) is connected to the inner sleeve (4). ) and scrapes off the deposits.

6. The double-coil type riser pipe heat exchanger with heat transfer enhancement effect according to claim 5. 。

7. A fixed insertion rod (17) is inserted into the mounting tab (16) and attached. A connecting nut (18) is threadedly attached to the outer end of (17), and the disturbance assembly (19) functions to attach and secure 2. The double-coil type riser pipe heat exchanger having a heat transfer enhancing effect according to claim 1. 。

8. A disturbance plate (1902) is fixed integrally to the outside of the connection plate (1901), and the connection plate (1902) A disturbing rod (1903) is fixed to the outside of the end of the riser pipe (901) near the central axis of the riser pipe body (1). is attached to the 2. The double-coil type riser pipe heat exchanger having a heat transfer enhancing effect according to claim 1. 。

9. Both the connecting plate (1901) and the disturbing plate (1902) are connected to the second mounting plate (15), The stirring rods (1903) are arranged at equal intervals in the vertical direction on the side closer to the central axis of the riser pipe body (1). are provided symmetrically with respect to the vertical central axis of the disturbance plate (1902). The double coil type riser pipe heat exchanger with heat transfer enhancement effect according to claim 8. 。

10. The agitation plates (1902) are arranged inclined upward, and the agitation plates (1902) are arranged in the inner cylindrical slot. Within the leeve (4), the particles are dispersed upward in a spiral pattern. The double-coil type riser pipe heat exchanger with heat transfer enhancement effect according to claim 9. 。

11. The disturbance plate (1902) has a plurality of ventilation holes extending in the vertical direction. The double coil having the heat transfer enhancing effect according to any one of claims 8 to 10. Type riser tube heat exchanger.

12. An internal U-shaped coil (22) is provided inside the inner cylindrical sleeve (4), Saturated steam is circulated through the U-shaped coil (22). The double-coil riser pipe with enhanced heat transfer effect according to claim 9 or 10. heat exchanger.

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