Energy-saving 2-ethyl anthraquinone production heat exchanger

Abstract

The utility model discloses an energy-saving 2-ethyl anthraquinone production heat exchanger which comprises a reaction kettle, the front side and the rear side of the center of the upper end of the reaction kettle are both communicated with feeding pipes, a stirring motor is arranged at the center of the upper end of the reaction kettle, a stirring shaft is rotationally connected to the center of the lower end of the stirring motor and located in the reaction kettle, and the stirring shaft is connected with a motor. The front side of the center of the lower end of the reaction kettle is communicated with a discharging pipe, a heating mechanism is arranged in the center of the lower end of the reaction kettle, the upper end of the heating mechanism is located in the reaction kettle, the lower end of the heating mechanism is connected with a power source through a wire harness, and a plurality of supporting legs are fixedly connected to the outer side of the lower end of the reaction kettle. The heat preservation recovery chamber is arranged in the cylindrical inner wall of the reaction kettle and is communicated with the interior of the reaction kettle through a plurality of communicating holes, in the purification process, evaporated high-temperature steam is guided into the heat preservation recovery chamber to preserve heat of the reaction chamber, heat loss is prevented, reutilization of the high-temperature steam is achieved, and energy conservation and consumption reduction are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to heat exchangers, and particularly relates to an energy-saving 2-ethylanthraquinone production heat exchanger. Background Art

[0002] Heat exchangers play a key role in the production of 2-ethylanthraquinone. However, conventional heat exchangers have several drawbacks. For one thing, they don't fully utilize the heat within the reactor. During the heating of the mixed raw materials for reaction and evaporation and purification, a significant amount of heat is easily lost, resulting in energy waste and increased production costs.

[0003] On the other hand, there's a lack of effective recycling methods for the high-temperature steam generated during the evaporation and purification process, which is often discharged directly. This not only wastes heat but also has potential environmental impacts. Furthermore, when condensing high-temperature steam in traditional heat exchangers, the coolant can affect the reactor's internal insulation, while the high-temperature steam can interfere with the condensation process.

[0004] In order to solve these problems, improve energy utilization efficiency, reduce production costs, and reduce environmental impact, a new type of energy-saving 2-ethylanthraquinone production heat exchanger is urgently needed. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-saving 2-ethylanthraquinone production heat exchanger to solve the problem of insufficient heat utilization of traditional heat exchangers proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an energy-saving 2-ethylanthraquinone production heat exchanger, comprising a reactor, wherein the front and rear sides of the center of the upper end of the reactor are connected to a feed pipe, a stirring motor is provided at the center of the upper end of the reactor, a stirring shaft is rotatably connected to the center of the lower end of the stirring motor, and the stirring shaft is located inside the reactor and rotatably connected to the inside of the reactor, a discharge pipe is connected to the front side of the center of the lower end of the reactor, a heating mechanism is provided inside the center of the lower end of the reactor, the upper end of the heating mechanism is located inside the reactor, and the lower end of the heating mechanism is connected to a power supply through a wiring harness, and a plurality of support legs are fixedly connected to the outer side of the lower end of the reactor.

[0007] Preferably, a heat preservation recovery chamber is provided inside the inner wall of the reactor cylinder, and the heat preservation recovery chamber is connected with the interior of the reactor through a plurality of connecting holes, and the plurality of connecting holes are opened inside the upper side of the inner wall of the reactor cylinder.

[0008] Preferably, a condensation chamber is provided outside the heat preservation recovery chamber, and the condensation chamber is opened inside the cylindrical outer wall of the reactor and is not connected with the heat preservation recovery chamber, and the upper side of the front end of the condensation chamber is connected with a liquid inlet pipe.

[0009] Preferably, the liquid inlet pipe is fixedly connected to the outside of the upper side of the front end of the reactor, the lower side of the rear end of the condensation chamber is connected to a liquid outlet pipe, and the liquid outlet pipe is fixedly connected to the outside of the lower side of the rear end of the reactor.

[0010] Preferably, a plurality of condenser tubes are provided inside the condensing chamber, and the plurality of condenser tubes are not connected to the interior of the condensing chamber, and the lower ends of the plurality of condenser tubes are connected to the interior of the lower end of the heat preservation recovery chamber.

[0011] Preferably, a vacuum chamber is provided between the heat preservation recovery chamber and the condensation chamber, an exhaust groove is provided inside the outer side of the upper end of the reactor, and the upper ends of the plurality of condenser tubes are connected to the interior of the lower end of the exhaust groove.

[0012] Preferably, a filter element is provided inside the exhaust groove, and a recovery pipe is connected to the rear side of the lower end of the heat-insulating recovery chamber, and the recovery pipe is fixedly connected to the outside of the rear side of the lower end of the reactor.

[0013] Compared with the prior art, the present invention provides an energy-saving 2-ethylanthraquinone production heat exchanger with the following beneficial effects:

[0014] 1. Overall structural innovation: including the reactor, feed pipe, stirring motor, stirring shaft, discharge pipe, heating mechanism and support legs, etc., which work together to achieve the production of 2-ethylanthraquinone and heat exchange functions.

[0015] 2. Innovation of thermal insulation recovery chamber: A thermal insulation recovery chamber is set inside the inner wall of the reactor cylinder and connected to the interior of the reactor through multiple connecting holes. During the purification process, the evaporated high-temperature steam is introduced into the thermal insulation recovery chamber to insulate the reaction chamber, prevent heat loss, realize the reuse of high-temperature steam, and save energy and reduce consumption.

[0016] 3. Condensation chamber innovation: A condensation chamber is set outside the insulation recovery chamber, and multiple condensing plate tubes are connected to the insulation recovery chamber and the exhaust groove inside. The coolant is introduced into the condensation chamber through the liquid inlet pipe, and the coolant is discharged through the liquid outlet pipe, so that the high-temperature steam and the coolant are heat exchanged and condensed in the condensation chamber. The condensed liquid can flow back to the lower end of the insulation recovery chamber, and the uncondensed steam is filtered by the filter element and discharged into the air to prevent pollution.

[0017] 4. Innovation in vacuum chamber setting: A vacuum chamber is set between the insulation recovery chamber and the condensation chamber to avoid the mutual influence between the condensation process and the insulation process. At the same time, the condensed liquid at the bottom of the insulation recovery chamber can be discharged through the recovery pipe for recycling and reuse, reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the 2-ethylanthraquinone production heat exchanger of the utility model.

[0019] Figure 2This is a schematic diagram of the left side cross-sectional structure of the 2-ethylanthraquinone production heat exchanger of the present invention.

[0020] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the 2-ethylanthraquinone production heat exchanger of the present utility model.

[0021] Figure 4 For the utility model Figure 3 Enlarged schematic diagram of point A in the middle.

[0022] Figure 5 For the utility model Figure 3 Enlarged schematic diagram of point A in the middle.

[0023] In the figure: 1. Reactor; 2. Feed pipe; 3. Stirring motor; 4. Stirring shaft; 5. Discharge pipe; 6. Heating mechanism; 7. Support legs; 8. Insulation recovery chamber; 9. Connecting hole; 10. Condensation chamber; 11. Liquid inlet pipe; 12. Liquid outlet pipe; 13. Condensation sheet tube; 14. Vacuum chamber; 15. Exhaust groove; 16. Filter element; 17. Recovery pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] The utility model provides Figure 1-Figure 5The energy-saving 2-ethyl anthraquinone production heat exchanger shown in the figure includes a reactor 1, and the front and rear sides of the center of the upper end of the reactor 1 are connected to the feed pipe 2. A stirring motor 3 is provided at the center of the upper end of the reactor 1, and the center of the lower end of the stirring motor 3 is rotatably connected to the stirring shaft 4, and the stirring shaft 4 is located inside the reactor 1 and is rotatably connected to the inside of the reactor 1. A discharge pipe 5 is connected to the front side of the center of the lower end of the reactor 1, and a heating mechanism 6 is provided inside the center of the lower end of the reactor 1. The upper end of the heating mechanism 6 is located inside the reactor 1, and the lower end of the heating mechanism 6 is connected to the power supply through a wiring harness. A plurality of support legs 7 are fixedly connected to the outer side of the lower end of the reactor 1 for supporting the bottom of the reactor 1. During the production process of 2-ethyl anthraquinone, the heating mechanism 6 is composed of a heating plate at the upper end and a lower heating plate at the lower end. The reactor 1 is composed of a control seat at the end, and the 2-ethylanthraquinone production raw materials are introduced into the reaction chamber inside the reactor 1 through two feeding pipes 2 for mixing reaction, and the mixed raw materials inside the reactor 1 are stirred by the stirring shaft 4 to improve the mixing efficiency. The stirring shaft 4 is powered by the stirring motor 3, and the heating mechanism 6 heats the mixed raw materials inside the reactor 1, so that the mixed raw materials react at a suitable temperature, thereby improving the reaction efficiency and thus improving the production efficiency. After the reaction is completed, the reactor 1 can reheat the 2-ethylanthraquinone crude liquid inside through the heating mechanism 6 and stir it through the stirring shaft 4, so that the 2-ethylanthraquinone crude liquid is evaporated and purified inside the reactor 1, and the purified 2-ethylanthraquinone liquid can be discharged through the discharge pipe 5.

[0026] Preferably, an insulation recovery chamber 8 is provided inside the cylindrical inner wall of the reactor 1, and the insulation recovery chamber 8 is connected to the interior of the reactor 1 through a plurality of connecting holes 9. The plurality of connecting holes 9 are opened inside the upper side of the cylindrical inner wall of the reactor 1. During the purification process of 2-ethylanthraquinone, the crude 2-ethylanthraquinone liquid is heated to the evaporation temperature by the heating mechanism 6, and the unreacted raw materials, by-products and solvents and other impurities are removed, so that the low-boiling point impurities are volatilized, and the purity of the 2-ethylanthraquinone is improved. The evaporated high-temperature steam rises to the top of the interior of the reactor 1 and is introduced into the insulation recovery chamber 8 through the plurality of connecting holes 9. Since the insulation recovery chamber 8 is located outside the reaction chamber inside the reactor 1, the high-temperature steam introduced into the insulation recovery chamber 8 can insulate the reaction chamber, which can prevent the heat loss inside the reaction chamber and reuse the high-temperature steam, making the use of the heating mechanism 6 more energy-efficient and reducing the cost of evaporation purification.

[0027] Preferably, a condensing chamber 10 is provided outside the heat preservation recovery chamber 8, and the condensing chamber 10 is opened inside the cylindrical outer wall of the reactor 1 and is not connected with the heat preservation recovery chamber 8. A plurality of condensing fin tubes 13 are provided inside the condensing chamber 10, and the plurality of condensing fin tubes 13 are not connected with the interior of the condensing chamber 10. The lower ends of the plurality of condensing fin tubes 13 are connected with the interior of the lower end of the heat preservation recovery chamber 8. An exhaust groove 15 is provided inside the outer side of the upper end of the reactor 1, and the upper ends of the plurality of condensing fin tubes 13 are connected with the interior of the lower end of the exhaust groove 15. A filter element 16 is provided inside the exhaust groove 15. The upper side of the front end of the condensing chamber 10 is connected with a liquid inlet pipe 11, and the liquid inlet pipe 11 is fixedly connected to the outer side of the upper side of the front end of the reactor 1. The lower side of the rear end of the condensing chamber 10 is connected with a liquid outlet pipe. Tube 12, and the liquid outlet pipe 12 is fixedly connected to the outside of the lower rear end of the reactor 1, and the high-temperature steam introduced into the heat preservation recovery chamber 8 can be introduced into the condensation chamber 10 through multiple condenser tubes 13, and can be condensed inside the condensation chamber 10. The condensation chamber 10 can introduce coolant through the liquid inlet pipe 11 and discharge the coolant through the liquid outlet pipe 12, so that the high-temperature steam can pass through the condenser tube 13 in the condensation chamber 10 and exchange heat with the flowing coolant, so that the high-temperature steam is condensed, and the condensed liquid can flow back to the lower end of the heat preservation recovery chamber 8 along the inner wall of the condenser tube 13, and the uncondensed steam is introduced into the exhaust groove 15, and is discharged into the air after being filtered by the filter element 16 to prevent pollution.

[0028] Preferably, a vacuum chamber 14 is provided between the insulation recovery chamber 8 and the condensation chamber 10, and a recovery pipe 17 is connected to the rear side of the lower end of the insulation recovery chamber 8, and the recovery pipe 17 is fixedly connected to the outside of the rear side of the lower end of the reactor 1. Since the interior of the vacuum chamber 14 is set in a vacuum state and is located between the insulation recovery chamber 8 and the condensation chamber 10, the coolant inside the condensation chamber 10 will not affect the insulation of the reaction chamber by the high-temperature steam inside the insulation recovery chamber 8. At the same time, the high-temperature steam inside the insulation recovery chamber 8 will not affect the condensation of the high-temperature steam inside the condenser tube 13. The condensed liquid flowing into the bottom of the insulation recovery chamber 8 can be discharged through the recovery pipe 17 for recycling and reuse, thereby reducing the production cost of 2-ethylanthraquinone.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An energy-saving 2-ethylanthraquinone production heat exchanger, characterized in that: The invention comprises a reactor (1), wherein the center of the upper end of the reactor (1) is connected to a feed pipe (2) on both the front and rear sides thereof, a stirring motor (3) is provided at the center of the upper end of the reactor (1), a stirring shaft (4) is rotatably connected to the center of the lower end of the stirring motor (3), and the stirring shaft (4) is located inside the reactor (1) and is rotatably connected to the inside of the reactor (1), a discharge pipe (5) is connected to the front side of the center of the lower end of the reactor (1), a heating mechanism (6) is provided inside the center of the lower end of the reactor (1), the upper end of the heating mechanism (6) is located inside the reactor (1), and the lower end of the heating mechanism (6) is connected to a power supply via a wiring harness, and a plurality of support legs (7) are fixedly connected to the outer side of the lower end of the reactor (1).

2. The energy-saving 2-ethylanthraquinone production heat exchanger according to claim 1, characterized in that: A heat preservation recovery chamber (8) is provided inside the cylindrical inner wall of the reactor (1), and the heat preservation recovery chamber (8) is connected to the interior of the reactor (1) through a plurality of connecting holes (9), and the plurality of connecting holes (9) are opened inside the upper side of the cylindrical inner wall of the reactor (1).

3. The energy-saving 2-ethylanthraquinone production heat exchanger according to claim 2, characterized in that: A condensation chamber (10) is provided outside the heat-insulating recovery chamber (8), and the condensation chamber (10) is opened inside the cylindrical outer wall of the reactor (1) and is not connected to the heat-insulating recovery chamber (8). The upper side of the front end of the condensation chamber (10) is connected to a liquid inlet pipe (11).

4. The energy-saving heat exchanger for producing 2-ethylanthraquinone according to claim 3, characterized in that: The liquid inlet pipe (11) is fixedly connected to the outside of the upper front end of the reactor (1); the lower rear end of the condensation chamber (10) is connected to a liquid outlet pipe (12), and the liquid outlet pipe (12) is fixedly connected to the outside of the lower rear end of the reactor (1).

5. The energy-saving heat exchanger for producing 2-ethylanthraquinone according to claim 4, characterized in that: A plurality of condenser tubes (13) are provided inside the condensation chamber (10), and the plurality of condenser tubes (13) are not connected to the interior of the condensation chamber (10), and the lower ends of the plurality of condenser tubes (13) are connected to the interior of the lower end of the heat preservation recovery chamber (8).

6. The energy-saving heat exchanger for producing 2-ethylanthraquinone according to claim 5, characterized in that: A vacuum chamber (14) is provided between the heat-insulating recovery chamber (8) and the condensing chamber (10), an exhaust groove (15) is provided inside the outer side of the upper end of the reactor (1), and the upper ends of the plurality of condensing sheet tubes (13) are connected to the lower end of the exhaust groove (15).

7. The energy-saving heat exchanger for producing 2-ethylanthraquinone according to claim 6, characterized in that: A filter element (16) is provided inside the exhaust groove (15), and a recovery pipe (17) is connected to the rear side of the lower end of the heat-insulating recovery chamber (8), and the recovery pipe (17) is fixedly connected to the outside of the rear side of the lower end of the reactor (1).

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