Steam recycling equipment of carbonic ester device

By introducing a stepped recovery tower and gas-liquid separation components into the carbonate unit, the problem of low steam recovery efficiency in the existing technology has been solved, achieving efficient steam recovery and gas-liquid separation, thereby improving energy utilization efficiency and unit stability.

CN224261983UActive Publication Date: 2026-05-19SHENGHUA NEW ENERGY TECH (WUHAN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENGHUA NEW ENERGY TECH (WUHAN) CO LTD
Filing Date
2025-06-25
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing steam recovery and utilization equipment for carbonate plants has failed to effectively achieve step-by-step steam recovery and gas-liquid separation, resulting in low steam utilization efficiency.

Method used

A steam recovery and utilization device for a carbonate unit, comprising a stepped recovery tower and a gas-liquid separation component, was designed. By setting up a sealed heating component and a gas-liquid separation component, the steam is cooled and condensed in stages using an internal guide pipe and a jacket, and the waste heat is recycled in conjunction with a waste heat collection tower.

Benefits of technology

It achieves efficient steam recovery and gas-liquid separation, improves steam utilization efficiency, reduces production costs and carbon emissions, and enhances the stability and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steam recovery, and discloses a steam recycling device of a carbonic ester device, which comprises a base, a processing box piece is arranged on the back of the top of the base, a stepped recovery tower is arranged on the front of the processing box piece, a gas-liquid separation component is arranged in the stepped recovery tower, and the processing box piece is connected with the gas-liquid separation component. And a sealing heating assembly is arranged on the surface of the stepped recovery tower. According to the steam recycling equipment for the carbonic ester device, the sealing heating assembly is arranged, normal-temperature water is supplemented through the inner flow guide pipes, the normal-temperature water can be evenly supplemented through the inner flow guide pipes which are annularly distributed at equal intervals, and then a sealing ring piece can be installed on the top of a connecting ring piece after supplementing is completed and is matched with a heat pump for heating; the heated hot water automatically flows back to the cooling water tank at the top of the recovery tower through gravity and is used for preheating steam entering the recovery tower, waste heat recycling is formed, and waste heat is recovered in cooperation with the placement frame and the waste heat collection tower.
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Description

Technical Field

[0001] This utility model relates to the field of steam recovery technology, specifically to a steam recovery and utilization device for a carbonate plant. Background Technology

[0002] As an important class of organic chemical raw materials, carbonates rely heavily on steam as an indispensable energy medium in their industrial production. Steam is widely used in processes such as reaction heating, material evaporation and concentration, and distillation separation. Taking the production of dimethyl carbonate as an example, the reaction of methanol with propylene carbonate in the transesterification process and the subsequent distillation and purification of the products all require a large amount of steam. The rational utilization and recovery of steam directly affects the energy consumption, production costs, and carbon emission levels of carbonate plants.

[0003] The prior art discloses a steam recovery and utilization device for a carbonate plant, with publication number CN217872958U, relating to the field of steam recovery technology. This utility model includes a main unit, a steam inlet device, an impact device, a power generation device, and a control device. This utility model improves the steam recovery and utilization device for a carbonate plant by setting up a main unit, making it convenient to use, simple to operate, and highly practical. The steam inlet device heats the excess steam generated by the carbonate plant to prevent liquefaction and sends it to the impact device for recovery and reuse. The impact device converts the energy in the steam into mechanical energy for output via an impact turbine, and the power generation device converts the mechanical energy into electrical energy for output.

[0004] The aforementioned carbonate steam recovery and utilization equipment can ensure relatively stable power output. By setting up a control device, power generation can be stably controlled to prevent grid fluctuations and ensure stable power control. However, the aforementioned recovery device does not have a stepped recovery tower. After the steam enters from the top of the tower, the steam flow rate cannot be gradually reduced due to the expansion of the cavity cross-sectional area, and the pressure will also decrease accordingly. This makes it impossible to achieve gas-liquid separation, resulting in poor performance during use. Improvements are needed. Utility Model Content

[0005] The purpose of this invention is to provide a steam recovery and utilization device for a carbonate plant to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a carbon carbonate steam recovery and utilization device, comprising a base, a processing box provided on the top back of the base, a stepped recovery tower provided on the front of the processing box, a gas-liquid separation component provided inside the stepped recovery tower, and a sealing heating component provided on the surface of the stepped recovery tower.

[0007] The sealed heating assembly includes a connecting ring, an inner guide tube, a magnetic connector, a magnet insert, a sealing ring, a heat pump, a connecting pipe body, a placement frame, and a waste heat collection tower. The connecting ring is fixedly connected to the top of the stepped recovery tower, the inner guide tube is fixedly connected to the inside of the connecting ring, the magnetic connector is fixedly connected to the top left side of the connecting ring, the sealing ring is fixedly connected to the side of the magnet insert, the connecting pipe body is fixedly connected to the left side of the heat pump, the placement frame is fixedly connected to the right side of the stepped recovery tower, the waste heat collection tower is fixedly connected to the inside of the placement frame, and the waste heat collection tower is fixedly connected to the top of the base.

[0008] Preferably, the gas-liquid separation assembly includes a flow guide, a connecting trough, a jacket, and a condensate discharge pipe. The connecting trough is located at the top of the stepped recovery tower, the flow guide is fixedly connected to the inner top of the stepped recovery tower, and the connecting trough is fixedly connected to the bottom left side of the processing box.

[0009] Preferably, the jacket is fixedly connected to the inner wall of the stepped recovery tower, and the diameter of the jacket is adapted to the inner diameter of the stepped recovery tower. Steam enters from the top of the tower. Due to the expansion of the cross-sectional area of ​​the cavity, the steam flow rate gradually decreases and the pressure also decreases accordingly. The diameter of the top end of the guide at the air inlet is smaller than the diameter of the bottom end. The steam gradually condenses during the cooling process, ensuring the normal use of the device.

[0010] Preferably, the top of the stepped recovery tower is fixedly connected to a connecting pipe, and the heat pump is fixedly connected to the top of the connecting pipe.

[0011] Preferably, the magnet plug is magnetically connected to the magnetic connector, and the magnet plug and the magnetic connector are locked after the sealing ring is placed to ensure sealing and prevent leakage under external force.

[0012] Preferably, the end of the connecting pipe away from the heat pump is fixedly connected to the left side of the front of the processing box.

[0013] Preferably, the connecting ring has a groove inside, and the magnet insert is slidably connected to the inside of the magnetic connector.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This carbonate unit's steam recovery and utilization equipment is equipped with a sealed heating component. It uses an internal guide pipe to replenish room temperature water. The internal guide pipes, which are distributed in a ring at equal intervals, can evenly replenish the room temperature water. After replenishment, a sealing ring can be installed on top of the connecting ring. In conjunction with a heat pump, the water is heated. The heated water flows back to the cooling water tank at the top of the recovery tower by gravity to preheat the steam entering the recovery tower, forming a waste heat recycling system. The waste heat is recovered in conjunction with the placement frame and waste heat collection tower.

[0016] This carbonate unit's steam recovery and utilization equipment incorporates a gas-liquid separation component and a stepped recovery tower. Steam enters from the top of the tower, and due to the increased cross-sectional area of ​​the chamber, the steam velocity gradually decreases, and the pressure also decreases accordingly. The diameter of the top of the guide at the inlet end is smaller than the diameter of the bottom end. A jacket is installed inside the stepped recovery tower, and room temperature water flows through the jacket. During the cooling process, the steam gradually condenses, and the condensate flows into the collection tank below by gravity along the jacket and the guide, thus achieving automatic gas-liquid separation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 3 This is a three-dimensional structural diagram of the stepped recovery tower and gas-liquid separation component of this utility model;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point B.

[0021] In the diagram: 1. Base; 2. Processing box; 3. Stepped recovery tower; 4. Gas-liquid separation assembly; 401. Flow guide; 402. Connecting channel; 403. Jacket; 404. Condensate discharge pipe; 5. Sealed heating assembly; 501. Connecting ring; 502. Inner flow guide; 503. Magnetic connector; 504. Magnet insert; 505. Sealing ring; 506. Heat pump; 507. Connecting pipe; 508. Placement frame; 509. Waste heat collection tower. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 The present invention provides the following technical solution:

[0024] A carbon carbonate steam recovery and utilization device includes a base 1, a processing box 2 is provided on the top back of the base 1, a stepped recovery tower 3 is provided on the front of the processing box 2, a gas-liquid separation component 4 is provided inside the stepped recovery tower 3, and a sealing heating component 5 is provided on the surface of the stepped recovery tower 3.

[0025] The sealed heating assembly 5 includes a connecting ring 501, an inner guide pipe 502, a magnetic connector 503, a magnet insert 504, a sealing ring 505, a heat pump 506, a connecting pipe body 507, a placement frame 508, and a waste heat collection tower 509. The connecting ring 501 is fixedly connected to the top of the stepped recovery tower 3. The inner guide pipe 502 is fixedly connected to the inside of the connecting ring 501. The magnetic connector 503 is fixedly connected to the top left side of the connecting ring 501. The sealing ring 505 is fixedly connected to the side of the magnet insert 504. The connecting pipe body 507 is fixedly connected to the left side of the heat pump 506. The placement frame 508 is fixedly connected to the right side of the stepped recovery tower 3. Waste heat collection... Tower 509 is fixedly connected to the inside of the placement frame 508. Waste heat collection tower 509 is fixedly connected to the top of base 1. The inside of the connecting ring 501 is grooved. Magnet insert 504 is slidably connected to the inside of magnetic connector 503. Connecting pipe is fixedly connected to the top of the stepped recovery tower 3. Heat pump 506 is fixedly connected to the top of the connecting pipe. Magnet insert 504 is magnetically connected to magnetic connector 503. The setting of magnet insert 504 and magnetic connector 503 is locked after the sealing ring 505 is placed to ensure sealing and prevent leakage under external force. The end of connecting pipe 507 away from heat pump 506 is fixedly connected to the left side of the front of the processing box 2.

[0026] The gas-liquid separation component 4 includes a flow guide 401, a connecting channel 402, a jacket 403, and a condensate discharge pipe 404. The connecting channel 402 is located at the top of the stepped recovery tower 3. The flow guide 401 is fixedly connected to the top of the stepped recovery tower 3. The connecting channel 402 is fixedly connected to the bottom left side of the processing box 2. The jacket 403 is fixedly connected to the inner wall of the stepped recovery tower 3. The diameter of the jacket 403 is adapted to the inner diameter of the stepped recovery tower 3. Steam enters from the top of the tower. Due to the expansion of the cross-sectional area of ​​the cavity, the steam flow rate gradually decreases, and the pressure also decreases accordingly. The diameter of the top of the flow guide 401 at the inlet end is smaller than the diameter of the bottom end. The steam gradually condenses during the cooling process, ensuring the normal operation of the device.

[0027] In operation, the device is equipped with a stepped recovery tower 3. Steam enters from the top of the tower. Due to the increased cross-sectional area of ​​the cavity, the steam velocity gradually decreases, and the pressure also decreases accordingly. The diameter of the top end of the guide component 401 at the inlet is smaller than the diameter of the bottom end. A jacket 403 is installed inside the stepped recovery tower 3, and room temperature water flows through the jacket. During the cooling process, the steam gradually condenses. The condensate flows into the collection tank below by gravity along the jacket 403 and the guide component 401, achieving automatic gas-liquid separation. A sealed heating component 5 is installed at the top of the stepped recovery tower 3. During operation, room temperature water can be added using the inner guide pipe 502, and the steam is heated through annular channels, etc. The spaced inner guide pipes 502 can uniformly replenish room temperature water. After replenishment, the sealing ring 505 can be installed on the top of the connecting ring 501. The magnet insert 504 is aligned with the magnetic connector 503 and inserted. Then, the sealing ring 505 is snapped into the top of the connecting ring 501, covering the top annular groove. During operation, the heat pump 506 is started to heat the water. The heated water flows back to the cooling water tank at the top of the recovery tower by gravity to preheat the steam entering the recovery tower, forming a waste heat recycling. This works in conjunction with the placement frame 508 and the waste heat collection tower 509 to recover waste heat.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steam recovery and utilization device for a carbonate plant, comprising a base (1), characterized in that: The base (1) has a processing box (2) on its top back side, a stepped recovery tower (3) on its front side, a gas-liquid separation component (4) inside the stepped recovery tower (3), and a sealing heating component (5) on its surface. The sealed heating assembly (5) includes a connecting ring (501), an inner guide pipe (502), a magnetic connector (503), a magnetic insert (504), a sealing ring (505), a heat pump (506), a connecting pipe body (507), a placement frame (508), and a waste heat collection tower (509). The connecting ring (501) is fixedly connected to the top of the stepped recovery tower (3), and the inner guide pipe (502) is fixedly connected to the inside of the connecting ring (501). The seat (503) is fixedly connected to the top left side of the connecting ring (501), the sealing ring (505) is fixedly connected to the side of the magnet insert (504), the connecting pipe (507) is fixedly connected to the left side of the heat pump (506), the placement frame (508) is fixedly connected to the right side of the stepped recovery tower (3), the waste heat collection tower (509) is fixedly connected to the inside of the placement frame (508), and the waste heat collection tower (509) is fixedly connected to the top of the base (1).

2. The steam recovery and utilization equipment for a carbonate plant according to claim 1, characterized in that: The gas-liquid separation component (4) includes a flow guide (401), a connecting channel (402), a jacket (403), and a condensate discharge pipe (404). The connecting channel (402) is located at the top of the stepped recovery tower (3). The flow guide (401) is fixedly connected to the top of the interior of the stepped recovery tower (3). The connecting channel (402) is fixedly connected to the bottom left side of the processing box (2).

3. The steam recovery and utilization equipment for a carbonate plant according to claim 2, characterized in that: The jacket (403) is fixedly connected to the inner wall of the stepped recovery tower (3), and the diameter of the jacket (403) is adapted to the inner diameter of the stepped recovery tower (3).

4. The steam recovery and utilization equipment for a carbonate plant according to claim 1, characterized in that: The top of the stepped recovery tower (3) is fixedly connected to a connecting pipe, and the heat pump (506) is fixedly connected to the top of the connecting pipe.

5. A steam recovery and utilization device for a carbonate plant according to claim 1, characterized in that: The magnetic insert (504) is magnetically connected to the magnetic connector (503).

6. The steam recovery and utilization equipment for a carbonate plant according to claim 1, characterized in that: The end of the connecting pipe (507) away from the heat pump (506) is fixedly connected to the left side of the front of the processing box (2).

7. A steam recovery and utilization device for a carbonate plant according to claim 1, characterized in that: The connecting ring (501) has a groove inside, and the magnet insert (504) is slidably connected to the inside of the magnetic connector (503).