Reaction kettle waste heat recycling device

Abstract

The utility model provides a reaction kettle waste heat recycling device, which belongs to the technical field of heat energy utilization and comprises a supporting piece and a heat energy utilization mechanism. The supporting piece is positioned between the reaction kettle and the wastewater pool; the heat energy utilization mechanism is arranged on the supporting piece; the heat energy utilization mechanism comprises a heat exchange box, a heat exchange pipe and a plurality of heat exchange plates; the heat exchange box is arranged on the supporting piece, a heat exchange channel is arranged in the heat exchange box, and the heat exchange channel is arranged in a reciprocating circuitous mode from left to right; the heat exchange pipe is arranged in the heat exchange channel; the heat exchange tube is connected with an exhaust hole of the reaction kettle; the multiple heat exchange plates are all arranged in the heat exchange channel, receding openings are formed in the heat exchange plates, and every two adjacent receding openings are arranged in a staggered mode. According to the reaction kettle waste heat recycling device provided by the utility model, hot air exhausted by the reaction kettle is utilized by virtue of the heat energy utilization mechanism, so that the hot air exchanges heat with waste water in the waste water pool, the temperature of the waste water is increased, the energy consumption is reduced, and the waste water in the waste water pool is conveniently treated.

Description

Technical Field

[0001] This utility model belongs to the field of thermal energy utilization technology, specifically relating to a device for reusing waste heat from a reaction vessel. Background Technology

[0002] With the rapid development of the global economy, energy demand continues to grow, while traditional fossil fuel reserves are limited, leading to an increasingly serious energy shortage. In industries such as chemicals, reaction vessels, as commonly used chemical equipment, require a large amount of energy to maintain the necessary temperatures and other conditions during operation, resulting in a huge energy demand. Currently, during operation, reaction vessels release a large amount of hot gas into the air, wasting the heat in the gas and resulting in low thermal energy utilization. Utility Model Content

[0003] This utility model provides a device for reusing waste heat from a reactor to solve the technical problem of low utilization rate of heat emitted from reactors in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a device for reusing waste heat from a reaction vessel, comprising:

[0005] The support structure is located on the ground and between the reactor and the wastewater tank;

[0006] A heat energy utilization mechanism, located on the support member, is used to exchange heat between the hot gas emitted from the reactor and the water in the wastewater pool.

[0007] The heat energy utilization mechanism includes a heat exchange box, heat exchange tubes, and multiple heat exchange plates;

[0008] The heat exchange box is mounted on the support member. A heat exchange channel is provided inside the heat exchange box, and the heat exchange channel is arranged in a reciprocating, meandering manner from left to right. Each end of the heat exchange channel has an inlet connected to the outlet of the wastewater tank and an outlet connected to the inlet of the wastewater tank, respectively. A heat exchange tube is disposed in the heat exchange box and located within the heat exchange channel. The heat exchange tube is arranged along the extension direction of the heat exchange channel, and a flow gap is provided between its outer wall and the inner wall of the heat exchange channel. The flow direction of the liquid in the heat exchange channel is opposite to the flow direction of the gas in the corresponding heat exchange tube. One end of the heat exchange tube extends out of the heat exchange box and connects to the exhaust port of the reactor. Multiple heat exchange plates are disposed within the heat exchange channel, and each heat exchange plate has clearance openings, with adjacent clearance openings staggered.

[0009] In one possible implementation, the heat exchange plate has a through hole, through which the heat exchange tube passes.

[0010] In one possible implementation, the heat exchange plate has a heat exchange cavity that communicates with the through hole; the heat exchange tube has a heat exchange hole that communicates with the through hole.

[0011] In one possible implementation, a connecting pipe is provided between two adjacent heat exchange plates to communicate with the heat exchange cavity.

[0012] In one possible implementation, the support includes a lower support plate and an upper support plate, the lower support plate being disposed on the ground and the upper support plate being located above the lower support plate; the lower end of the heat exchange box is connected to the lower support plate and the upper end is connected to the upper support plate; both the lower support plate and the upper support plate have support cavities; the bent portion of the heat exchange tube is located inside the support cavity, and the end of the heat exchange tube away from the reactor extends out of the support cavity.

[0013] In one possible implementation, a temperature sensor is provided inside the support cavity to monitor the temperature of the hot gas inside the heat exchange tube.

[0014] In one possible implementation, an air pump is also provided inside the support cavity, and the air pump is located on the heat exchange tube.

[0015] In one possible implementation, the support cavity is equipped with a filter and is connected to the end of the heat exchange tube away from the reactor to filter impurities in the hot gas.

[0016] In one possible implementation, the filter includes a housing, filter cotton, and an exhaust pipe; the housing is disposed within the support cavity, and one end of the housing has a filter hole connected to the heat exchange tube, and the other end has an exhaust hole connected to the exhaust pipe; the filter cotton is disposed within the housing; one end of the exhaust pipe extends out of the support cavity.

[0017] The beneficial effects of the reactor waste heat recovery device provided by this utility model are as follows: Compared with the prior art, the reactor waste heat recovery device of this utility model, during use, since the wastewater in the wastewater tank needs to be heated to a certain temperature before further treatment, uses the reactor waste heat recovery device to exchange heat between the hot gas discharged from the reactor and the wastewater, thereby increasing the temperature of the wastewater and reducing energy consumption; since the heat exchange box of the heat exchange mechanism is equipped with a heat exchange channel, and the heat exchange channel is arranged in a reciprocating manner from left to right, and the heat exchange tube is located in the heat exchange channel, the wastewater in the wastewater tank enters the heat exchange channel through the inlet and flows in the heat exchange channel, while the hot gas in the reactor enters the heat exchange tube and flows in the heat exchange tube, transferring heat to the heat exchange tube. When the wastewater in the heat exchange channel comes into contact with the heat exchange tube, the heat on the heat exchange tube will be transferred to the wastewater, thus... This process raises the temperature of the wastewater. Because the flow direction of the liquid in the heat exchange channel is opposite to the flow direction of the gas in the corresponding heat exchange tube, the hot gas in the heat exchange tube and the wastewater in the heat exchange channel flow in opposite directions, thus enhancing the heat exchange effect. Since the heat exchange channel is equipped with multiple heat exchange plates, and the plates have clearance openings that are staggered, the wastewater flows back and forth within the heat exchange ventilation system. This not only prolongs the flow time of the wastewater in the heat exchange channel but also increases the turbulence of the wastewater, thereby enhancing the heat exchange effect. In this way, with the help of a heat energy utilization mechanism, the hot gas discharged from the reactor is utilized to exchange heat with the wastewater in the wastewater tank, raising the wastewater temperature, reducing energy consumption, and facilitating the treatment of wastewater in the wastewater tank. Simultaneously, the heat exchange channel, heat exchange tubes, and heat exchange plates installed within the heat exchange channel further enhance the heat exchange effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram showing the connection between the waste heat recovery device and the reaction vessel and wastewater tank provided in this embodiment of the utility model;

[0020] Figure 2 This is a front view of the waste heat recovery device provided in an embodiment of the present utility model;

[0021] Figure 3 This is a schematic diagram of the waste heat recovery device provided in an embodiment of the present utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a schematic diagram of the structure of the heat energy utilization mechanism provided in the embodiment of the present utility model;

[0024] Figure 6 This is a schematic diagram showing the connection between the heat exchange tube and the heat exchange plate provided in an embodiment of this utility model.

[0025] The following are the labeling elements in the figure:

[0026] 1. Support component; 11. Lower support plate; 12. Upper support plate; 13. Support cavity; 2. Heat energy utilization mechanism; 21. Heat exchange box; 22. Heat exchange tube; 221. Heat exchange hole; 23. Heat exchange plate; 231. Circumvention opening; 232. Through hole; 233. Heat exchange cavity; 24. Heat exchange channel; 241. Liquid inlet; 242. Liquid outlet; 25. Connecting pipe; 3. Reactor; 4. Wastewater tank; 5. Temperature sensor; 6. Air pump; 7. Filter; 71. Shell; 711. Filter hole; 712. Exhaust hole; 72. Filter cotton; 73. Exhaust pipe; 8. Liquid pump. Detailed Implementation

[0027] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] Please see Figures 1 to 6 The present invention provides a device for recovering waste heat from a reactor. The device includes a support member 1 and a heat utilization mechanism 2. The support member 1 is located on the ground between a reactor 3 and a wastewater tank 4. The heat utilization mechanism 2 is mounted on the support member 1 and is used to exchange heat between the hot gas emitted from the reactor 3 and the water in the wastewater tank 4. The heat utilization mechanism 2 includes a heat exchange box 21, heat exchange tubes 22, and multiple heat exchange plates 23. The heat exchange box 21 is mounted on the support member 1 and has a heat exchange channel 24 inside. The heat exchange channel 24 is arranged in a reciprocating, meandering manner from left to right. Both ends of the heat exchange channel 24 have inlets 24 that communicate with the outlet of the wastewater tank 4. 1. An outlet 242 connected to the inlet of the wastewater tank 4; a heat exchange tube 22 is installed in the heat exchange box 21 and located in the heat exchange channel 24. The heat exchange tube 22 is arranged along the extension direction of the heat exchange channel 24, and a flow gap is provided between the outer wall and the inner wall of the heat exchange channel 24; the flow direction of the liquid in the heat exchange channel 24 is opposite to the flow direction of the gas in the corresponding heat exchange tube 22; one end of the heat exchange tube 22 extends out of the heat exchange box 21 and is connected to the exhaust port 712 of the reactor 3; multiple heat exchange plates 23 are installed in the heat exchange channel 24, and the heat exchange plates 23 are provided with clearance openings 231, and two adjacent clearance openings 231 are staggered.

[0032] Compared with the prior art, the waste heat recovery device for the reactor provided in this embodiment utilizes the following: During use, the wastewater in the wastewater tank 4 needs to be heated to a certain temperature before further treatment. Therefore, the waste heat recovery device exchanges heat between the hot gas discharged from the reactor 3 and the wastewater to increase the wastewater temperature and reduce energy consumption. Since the heat exchange box 21 of the heat exchange mechanism is equipped with a heat exchange channel 24, which is arranged in a reciprocating pattern from left to right, and the heat exchange tube 22 is located within the heat exchange channel 24, the wastewater in the wastewater tank 4 enters the heat exchange channel 24 through the inlet 241 and flows within it. Meanwhile, the hot gas from the reactor 3 enters the heat exchange tube 22, flows within it, and transfers heat to the heat exchange tube 22. When the wastewater in the heat exchange channel 24 comes into contact with the heat exchange tube 22, the heat on the heat exchange tube 22 is transferred to the wastewater, thereby increasing the temperature of the wastewater. The flow rate is increased because the liquid flow direction in the heat exchange channel 24 is opposite to the gas flow direction in the corresponding heat exchange tube 22. Therefore, the hot gas in the heat exchange tube 22 and the wastewater in the heat exchange channel 24 form a counter-flow state, thereby enhancing the heat exchange effect. Since the heat exchange channel 24 is equipped with multiple heat exchange plates 23, and the heat exchange plates are provided with clearance openings 231, and two adjacent clearance openings 231 are staggered, the wastewater flows back and forth in the heat exchange channel 24. This not only prolongs the flow time of the wastewater in the heat exchange channel 24, but also increases the turbulence of the wastewater, thereby enhancing the heat exchange effect. In this way, with the help of the heat energy utilization mechanism 2, the hot gas discharged from the reactor 3 is utilized to exchange heat with the wastewater in the wastewater pool 4, increasing the temperature of the wastewater, reducing energy consumption, and facilitating the treatment of wastewater in the wastewater pool 4. At the same time, the heat exchange channel 24, the heat exchange tube 22, and the heat exchange plates 23 set in the heat exchange channel 24 are used to improve the heat exchange effect.

[0033] Please see Figure 3 , Figure 5 and Figure 6 As a specific embodiment of the waste heat recovery device for the reactor provided by this utility model, the heat exchange plate 23 is provided with a through hole 232, and the heat exchange tube 22 passes through the through hole 232. The through hole 232 is provided on the heat exchange plate 23 so that the heat exchange tube 22 can pass through the heat exchange plate 23, so that when the wastewater flows in a bend under the action of multiple heat exchange plates 23, it can fully contact the heat exchange tube 22, thereby ensuring the heat exchange effect.

[0034] Please see Figure 3 , Figure 5 and Figure 6As a specific embodiment of the waste heat recovery device for the reactor provided by this utility model, the heat exchange plate 23 has a heat exchange cavity 233, which is connected to the through hole 232; the heat exchange tube 22 has a heat exchange hole 221 connected to the through hole 232; with the help of the heat exchange hole 221 on the heat exchange tube 22, the hot air will enter the heat exchange cavity 233 of the heat exchange plate 23 through the through hole 232 when passing through the heat exchange hole 221, thereby heating the heat exchange plate 23, so that when the wastewater comes into contact with the heat exchange plate 23, heat exchange can also be carried out, thereby improving the heat exchange effect.

[0035] Please see Figure 3 , Figure 5 and Figure 6 As a specific embodiment of the waste heat recovery device for the reactor provided by this utility model, a connecting pipe 25 is provided between two adjacent heat exchange plates 23 to connect the heat exchange chamber 233; the connecting pipe 25 allows the hot air in the heat exchange plate 23 to enter the next heat exchange plate 23 more quickly, so as to heat the heat exchange plate 23 more quickly and thus ensure the heat exchange effect.

[0036] Please see Figure 1 and Figure 2 As a specific embodiment of the reactor waste heat recovery device provided by this utility model, the support member 1 includes a lower support plate 11 and an upper support plate 12. The lower support plate 11 is located on the ground, and the upper support plate 12 is located above the lower support plate 11. The lower end of the heat exchange box 21 is connected to the lower support plate 11, and the upper end is connected to the upper support plate 12. Both the lower support plate 11 and the upper support plate 12 are provided with support cavities 13. The bent part of the heat exchange tube 22 is located in the support cavity 13, and the end of the heat exchange tube 22 away from the reactor 3 extends out of the support cavity 13. The lower support plate 11 of the support member 1 is used to support the heat energy utilization mechanism 2. The support cavity 13 is provided on the upper support plate 12 and the lower support plate 11, which not only facilitates the setting of the bent part of the heat exchange tube 22, but also better protects the heat exchange tube 22. Since the end of the heat exchange tube 22 away from the reactor 3 extends out of the support cavity 13, the hot gas in the heat exchange tube 22 is discharged out of the support cavity 13 from one end of the heat exchange tube 22 after heat exchange.

[0037] Please see Figure 3 As a specific embodiment of the waste heat recovery device of the reactor provided by this utility model, a temperature sensor 5 is provided in the support cavity 13 to monitor the temperature of the hot gas in the heat exchange tube 22; with the help of the temperature sensor 5, the temperature of the hot gas in the heat exchange tube 22 can be monitored at any time, thereby achieving the purpose of monitoring the waste heat recovery device and being able to detect it as soon as possible after it is damaged.

[0038] Please see Figure 1As a specific embodiment of the waste heat recovery device for the reactor provided by this utility model, an air pump 6 is also provided in the support cavity 13, and the air pump 6 is installed on the heat exchange tube 22. The air pump 6 is used to pump hot air from the reactor 3 into the heat exchange tube 22. The air pump 6 is installed in the support cavity 13 to protect the air pump 6. The waste heat recovery device of this application can be used not only on the reactor 3 that simply releases heat, but also on the reactor 3 that requires temperature control. During use, a cooling medium needs to be introduced to control the temperature inside the reactor 3. In this application, the flow rate of the gas can be controlled by the air pump to reduce the amount of cooling medium introduced into the reactor 3, thereby saving resources and reducing consumption.

[0039] Please see Figure 3 As a specific embodiment of the waste heat recovery device for the reactor provided by this utility model, a filter 7 is provided in the support cavity 13 and is connected to the end of the heat exchange tube 22 away from the reactor 3, for filtering impurities in the hot gas. Since the hot gas discharged from the reactor 3 may contain impurities such as smoke and dust, direct discharge may pollute the air. Therefore, a filter 7 is provided in the support cavity 13 and the filter 7 is connected to the heat exchange tube 22 to facilitate filtering impurities in the hot gas.

[0040] Please see Figure 4 As a specific embodiment of the waste heat recovery device for the reactor provided by this utility model, the filter 7 includes a housing 71, filter cotton 72, and an exhaust pipe 73; the housing 71 is disposed in the support cavity 13, and one end of the housing 71 is provided with a filter hole 711 connected to the heat exchange tube 22, and the other end is provided with an exhaust hole 712 connected to the exhaust pipe 73; the filter cotton 72 is disposed in the housing 71; one end of the exhaust pipe 73 extends out of the support cavity 13; hot gas enters the housing 71 through the filter hole 711, and impurities are adsorbed on the filter cotton 72 through the filter cotton 72, and then enters the exhaust pipe 73 through the exhaust hole 712, and finally the hot gas is discharged into the air by the exhaust pipe 73.

[0041] Please see Figure 1 As a specific embodiment of the waste heat recovery device for the reactor provided by this utility model, the outlet of the wastewater tank 4 is connected to the inlet 241 of the heat exchange channel 24, and the inlet of the wastewater tank 4 is connected to the outlet 242 of the heat exchange channel 24 through pipelines. A liquid pump 8 is provided on the pipelines to pump water from the wastewater tank 4 into the heat exchange channel 24 and to pump heated wastewater from the heat exchange channel 24 into the wastewater tank 4. A sealing gasket is also provided between the heat exchange tube 22 and the through hole 232 to prevent wastewater from entering the heat exchange tube 22.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for reusing waste heat from a reaction vessel, characterized in that, include: The support structure is located on the ground and between the reactor and the wastewater tank; A heat energy utilization mechanism, located on the support member, is used to exchange heat between the hot gas emitted from the reactor and the water in the wastewater pool. The heat energy utilization mechanism includes a heat exchange box, heat exchange tubes, and multiple heat exchange plates; The heat exchange box is mounted on the support member. A heat exchange channel is provided inside the heat exchange box, and the heat exchange channel is arranged in a reciprocating, meandering manner from left to right. Each end of the heat exchange channel has an inlet connected to the outlet of the wastewater tank and an outlet connected to the inlet of the wastewater tank, respectively. A heat exchange tube is disposed in the heat exchange box and located within the heat exchange channel. The heat exchange tube is arranged along the extension direction of the heat exchange channel, and a flow gap is provided between its outer wall and the inner wall of the heat exchange channel. The flow direction of the liquid in the heat exchange channel is opposite to the flow direction of the gas in the corresponding heat exchange tube. One end of the heat exchange tube extends out of the heat exchange box and connects to the exhaust port of the reactor. Multiple heat exchange plates are disposed within the heat exchange channel, and each heat exchange plate has clearance openings, with adjacent clearance openings staggered.

2. The device for reusing waste heat from a reaction vessel as described in claim 1, characterized in that, The heat exchange plate has a through hole, and the heat exchange tube passes through the through hole.

3. The device for recovering waste heat from a reaction vessel as described in claim 2, characterized in that, The heat exchange plate has a heat exchange cavity, which is connected to the through hole; the heat exchange tube has a heat exchange hole that is connected to the through hole.

4. The device for recovering waste heat from a reaction vessel as described in claim 3, characterized in that, A connecting pipe is provided between two adjacent heat exchange plates to communicate with the heat exchange cavity.

5. The device for reusing waste heat from a reaction vessel as described in claim 1, characterized in that, The support includes a lower support plate and an upper support plate. The lower support plate is located on the ground, and the upper support plate is located above the lower support plate. The lower end of the heat exchange box is connected to the lower support plate, and the upper end is connected to the upper support plate. Both the lower support plate and the upper support plate have support cavities. The bent portion of the heat exchange tube is located inside the support cavity, and the end of the heat exchange tube away from the reactor extends out of the support cavity.

6. The device for recovering waste heat from a reaction vessel as described in claim 5, characterized in that, A temperature sensor is installed inside the support cavity to monitor the temperature of the hot gas inside the heat exchange tube.

7. The device for reusing waste heat from a reaction vessel as described in claim 5, characterized in that, An air pump is also provided inside the support cavity, and the air pump is located on the heat exchange tube.

8. The device for recovering waste heat from a reaction vessel as described in claim 5, characterized in that, The support cavity is equipped with a filter, which is connected to the end of the heat exchange tube away from the reactor, and is used to filter impurities in the hot gas.

9. The device for recovering waste heat from a reaction vessel as described in claim 8, characterized in that, The filter includes a housing, filter cotton, and an exhaust pipe; the housing is disposed within the support cavity, and one end of the housing has a filter hole connected to the heat exchange tube, and the other end has an exhaust hole connected to the exhaust pipe; the filter cotton is disposed within the housing; one end of the exhaust pipe extends out of the support cavity.

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