Carbon dioxide stripping column

Abstract

The utility model relates to the technical field of stripping tower, and disclose carbon dioxide stripping tower, including carbon dioxide stripping tower main part, one side of carbon dioxide stripping tower main part is equipped with waste heat recovery mechanism, the waste heat recovery mechanism includes the heat -preserving water tank, the top fixed mounting of heat -preserving water tank has high temperature resistant water pump, water level sensor, water temperature sensor and control panel, the input of high temperature resistant water pump is fixedly installed with heat -preserving water pipe. The utility model discloses through setting up waste heat recovery mechanism, the waste heat of carbon dioxide stripping tower main part generates recycling, specifically, the water in heat -preserving water tank is pumped out by high temperature resistant water pump through heat -preserving water pipe, is transported to the serpentine heat pipe in waste gas export in no. The waste heat in waste gas export heats the water in serpentine heat pipe, and the water after heating flows back heat -preserving water tank through no. 2 guide pipe, and such circulation realizes the effective recovery of waste heat, improves the energy utilization, and reduces energy waste.

Description

Technical Field

[0001] This utility model relates to the field of stripping tower technology, and more specifically to carbon dioxide stripping tower. Background Technology

[0002] Carbon dioxide stripping towers are industrial devices used to separate and recover carbon dioxide from liquids, commonly found in processes such as carbon capture and gas purification. Their core function is to reduce the partial pressure of carbon dioxide in a solution through gas-liquid contact and heating, thereby achieving efficient separation. The separation principle utilizes Henry's Law or chemical equilibrium, by contacting the gas phase (such as carbon dioxide gas) with the liquid phase (a solution containing carbon dioxide), the partial pressure of carbon dioxide in the liquid phase is reduced, causing carbon dioxide to escape from the liquid phase. Currently, in practical applications, traditional carbon dioxide stripping towers often lack effective waste heat recovery mechanisms, resulting in the direct release of large amounts of waste heat into the environment, causing energy waste, and requiring improvement. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a carbon dioxide stripping tower to solve the problems existing in the background art.

[0004] This utility model provides the following technical solution: a carbon dioxide stripping tower, including a carbon dioxide stripping tower body, a waste heat recovery mechanism on one side of the carbon dioxide stripping tower body, the waste heat recovery mechanism including an insulated water tank, a high-temperature resistant water pump, a water level sensor, a water temperature sensor and a control panel fixedly installed on the top of the insulated water tank, an insulated water pipe fixedly installed at the input end of the high-temperature resistant water pump, the bottom end of the insulated water pipe extending to the lower part of the insulated water tank, a first conduit fixedly installed at the output end of the high-temperature resistant water pump, a waste gas outlet at the top of the carbon dioxide stripping tower body, a serpentine heat-conducting pipe fixedly installed inside the waste gas outlet, the top end of the first conduit extending to the inside of the waste gas outlet and fixedly installed at the top of the serpentine heat-conducting pipe, a second conduit fixedly installed on one side of the top of the carbon dioxide stripping tower body, the bottom end of the second conduit extending to the upper part of the inside of the insulated water tank, the top end of the second conduit extending to the inside of the waste gas outlet and fixedly installed at the bottom of the serpentine heat-conducting pipe, and a heat insulation cover fixedly fitted onto the outer wall of the carbon dioxide stripping tower body.

[0005] Furthermore, the detection end of the water level sensor extends to the upper part of the insulated water tank, and the temperature measuring end of the water temperature sensor extends to the lower part of the insulated water tank.

[0006] Furthermore, a water supply pipe is fixedly installed on the left side of the top of the insulated water tank, and a drain pipe is fixedly installed on the lower right side of the insulated water tank. Solenoid valves are installed on the outer walls of the insulated water pipe, the water supply pipe, and the drain pipe.

[0007] Furthermore, the bottom of the main body of the carbon dioxide stripping tower is provided with a liquid outlet, the lower right side of the main body of the carbon dioxide stripping tower is provided with an air inlet, and the upper right side of the main body of the carbon dioxide stripping tower is provided with a liquid inlet.

[0008] Furthermore, the outer walls of both the No. 1 and No. 2 conduits are fixedly fitted with heat-insulating sleeves.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. This utility model recovers and reuses the waste heat generated by the main body of the carbon dioxide stripping tower by setting up a waste heat recovery mechanism. Specifically, a high-temperature resistant water pump draws water from the insulated water tank through an insulated water pipe and delivers it to the serpentine heat conduction pipe in the exhaust gas outlet through a first conduit. The waste heat in the exhaust gas outlet heats the water in the serpentine heat conduction pipe. The heated water then flows back to the insulated water tank through a second conduit. This cycle is repeated to achieve effective recovery of waste heat, improve energy utilization, and reduce energy waste.

[0011] The water level and temperature sensors installed on the top of the insulated water tank can monitor the water level and temperature in the tank in real time and transmit the data to the control panel. The control panel controls the operation of the high-temperature water pump and various solenoid valves according to preset parameters, realizing automated control and precise management.

[0012] 2. The utility model reduces heat loss and improves energy utilization efficiency by installing a heat insulation cover on the outer wall of the main body of the carbon dioxide stripping tower. In addition, the heat insulation sleeves fixedly connected to the outer walls of the No. 1 and No. 2 conduits can also prevent heat loss during transportation and ensure the waste heat recovery effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a cross-sectional view of the heat insulation cover structure of this utility model.

[0015] Figure 3 This is a cross-sectional view of the structure of the insulated water tank of this utility model.

[0016] Figure 4 This is a cross-sectional schematic diagram of the exhaust gas outlet structure of this utility model.

[0017] The attached diagram is labeled as follows: 1. Main body of carbon dioxide stripping tower; 2. Waste heat recovery mechanism; 21. Insulated water tank; 211. Water supply pipe; 212. Drainage pipe; 22. Insulated water pipe; 23. High-temperature resistant water pump; 24. No. 1 conduit; 25. Serpentine heat conduction pipe; 26. No. 2 conduit; 27. Water level sensor; 28. Water temperature sensor; 29. ​​Control panel; 3. Heat insulation cover; 4. Air inlet; 5. Liquid inlet; 6. Liquid outlet; 7. Waste gas outlet. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The carbon dioxide stripping tower involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Example 1:

[0020] like Figure 1-4 As shown, the carbon dioxide stripping tower includes a main body 1. A waste heat recovery mechanism 2 is located on one side of the main body 1. The waste heat recovery mechanism 2 includes an insulated water tank 21. A high-temperature resistant water pump 23, a water level sensor 27, a water temperature sensor 28, and a control panel 29 are fixedly installed on the top of the insulated water tank 21. An insulated water pipe 22 is fixedly installed at the input end of the high-temperature resistant water pump 23, and the bottom end of the insulated water pipe 22 extends to the lower part of the insulated water tank 21. A first-line conduit 24 is fixedly installed at the output end of the high-temperature resistant water pump 23. The top of the main body 1 is provided with an exhaust gas outlet 7. A serpentine heat conduction pipe 25 is fixedly installed inside the exhaust gas outlet 7. The top of the first conduit 24 extends into the exhaust gas outlet 7 and is fixedly installed at the top of the serpentine heat conduction pipe 25. A second conduit 26 is fixedly installed on one side of the top of the carbon dioxide stripping tower main body 1. The bottom end of the second conduit 26 extends into the upper part of the insulated water tank 21. The top end of the second conduit 26 extends into the exhaust gas outlet 7 and is fixedly installed at the bottom end of the serpentine heat conduction pipe 25. The outer walls of the first conduit 24 and the second conduit 26 are both fixedly fitted with heat insulation sleeves.

[0021] In this embodiment, when the main body 1 of the carbon dioxide stripping tower is running, the waste gas is discharged from the waste gas outlet 7. The large amount of waste heat carried in the waste gas will heat the serpentine heat conduction pipe 25 in the waste gas outlet 7. At this time, the high temperature resistant water pump 23 starts and draws out the cold water at the bottom of the insulated water tank 21 through the insulated water pipe 22. The water is then transported to the serpentine heat conduction pipe 25 through the first conduit 24. The waste heat heats the cold water in the serpentine heat conduction pipe 25. The heated hot water then flows back to the top of the insulated water tank 21 through the second conduit 26. This cycle is repeated, so that the water temperature in the insulated water tank 21 gradually increases, realizing the effective recovery and utilization of waste heat. The outer insulation sleeve of the first conduit 24 and the second conduit 26 can be made of polyurethane foam plastic to reduce the heat loss generated during the transportation process.

[0022] Example 2:

[0023] like Figure 1-4As shown, the detection end of the water level sensor 27 extends to the upper part of the interior of the insulated water tank 21, and the temperature measuring end of the water temperature sensor 28 extends to the lower part of the interior of the insulated water tank 21. A water supply pipe 211 is fixedly installed on the left side of the top of the insulated water tank 21, and a drain pipe 212 is fixedly installed on the lower right side of the insulated water tank 21. Solenoid valves are installed on the outer walls of the insulated water pipe 22, the water supply pipe 211, and the drain pipe 212.

[0024] In this embodiment, the water temperature sensor 28 can monitor the water temperature in the insulated water tank 21 in real time. When the water temperature reaches the preset value, the water temperature sensor 28 transmits the signal to the control panel 29. The control panel 29 controls the high-temperature water pump 23 to stop working according to the preset program. At the same time, the control panel 29 can open or close the solenoid valves on the water supply pipe 211 and the drain pipe 212 according to actual needs to realize the replenishment and discharge of water in the insulated water tank 21. The water level sensor 27 can monitor the water level in the insulated water tank 21 in real time. When the water level is too low, the control panel 29 will control the solenoid valve on the water supply pipe 211 to open after receiving the signal to replenish water into the insulated water tank 21. After the water level reaches the preset height, the solenoid valve closes to stop replenishing water into the insulated water tank 21.

[0025] Example 3:

[0026] like Figure 1-4 As shown, a heat insulation cover 3 is fixedly fitted to the outer wall of the carbon dioxide stripping tower body 1. A liquid outlet 6 is provided at the bottom of the carbon dioxide stripping tower body 1. An air inlet 4 is provided at the lower right side of the carbon dioxide stripping tower body 1. A liquid inlet 5 is provided at the upper right side of the carbon dioxide stripping tower body 1.

[0027] In this embodiment, the heat insulation cover 3 can be made of high-efficiency heat insulation materials such as aerogel felt or rock wool board. These materials have a low thermal conductivity, which can effectively prevent the heat inside the carbon dioxide stripping tower body 1 from dissipating to the outside and improve energy utilization efficiency. The air inlet 4 is used to introduce gas containing carbon dioxide, so that it enters the carbon dioxide stripping tower body 1 to participate in the gas-liquid contact and separation process. The liquid inlet 5 is used to input the carbon dioxide-containing solution into the carbon dioxide stripping tower body 1. The liquid outlet 6 is used to discharge the solution that has been treated and separated to remove carbon dioxide. The waste gas outlet 7 is used to discharge the separated waste gas.

[0028] In summary, as Figure 1-4As shown, in operation, the carbon dioxide stripping tower first introduces carbon dioxide-containing gas into the main body 1 of the tower through the gas inlet 4, and simultaneously introduces a carbon dioxide-containing solution into the tower through the liquid inlet 5. Inside the tower, the gas and liquid come into full contact. Utilizing Henry's Law or the principle of chemical equilibrium, the partial pressure of carbon dioxide in the liquid phase is reduced, causing carbon dioxide to escape from the liquid phase. The separated carbon dioxide is discharged with the waste gas from the waste gas outlet 7. During the discharge process, the large amount of waste heat carried by the waste gas heats the serpentine heat conduction pipe 25 inside the waste gas outlet 7. At this time, the high-temperature resistant water pump 23 starts, drawing cold water from the bottom of the insulated water tank 21 through the insulated water pipe 22 and transporting it to the serpentine heat conduction pipe 25 through the first conduit 24. The waste heat heats the cold water inside the serpentine heat conduction pipe 25. The heated hot water then flows back to the top of the insulated water tank 21 through the second conduit 26. The system circulates and recovers waste heat. The water temperature sensor 28 monitors the water temperature in the insulated water tank 21 in real time. When the water temperature reaches the preset value, the water temperature sensor 28 transmits the signal to the control panel 29. The control panel 29 controls the high-temperature water pump 23 to stop working according to the preset program. At the same time, the control panel 29 opens the solenoid valve on the drain pipe 212, and the hot water in the insulated water tank 21 can be discharged through the drain pipe 212. At this time, the water level sensor 27 monitors the water level in the insulated water tank 21 in real time. When the water level is lower than the preset value, the control panel 29 controls the solenoid valve on the drain pipe 212 to close and opens the solenoid valve on the water supply pipe 211 to replenish cold water into the insulated water tank 21 until the water level returns to the preset height. Then, the solenoid valve on the water supply pipe 211 is closed. At this time, the waste heat recovery mechanism 2 can continue to operate according to the preset program to continuously recover the waste heat generated by the carbon dioxide stripping tower body 1.

[0029] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the connection position of valve components is provided with anti-leakage rubber strips, the outside of threaded rods or lead rods is provided with dust covers, and the equipment can be driven by either built-in batteries or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The controller can be an external controller or installed in a position that does not affect the use of this device. The controller can play a control role for the electrical components mentioned in this document, and the controller is a conventional known device.

[0030] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0031] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0032] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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 carbon dioxide stripping tower, comprising a carbon dioxide stripping tower body (1), characterized in that, A waste heat recovery mechanism (2) is provided on one side of the main body (1) of the carbon dioxide stripping tower. The waste heat recovery mechanism (2) includes an insulated water tank (21). A high-temperature resistant water pump (23), a water level sensor (27), a water temperature sensor (28), and a control panel (29) are fixedly installed on the top of the insulated water tank (21). An insulated water pipe (22) is fixedly installed at the input end of the high-temperature resistant water pump (23). The bottom end of the insulated water pipe (22) extends to the bottom of the insulated water tank (21). A first-line conduit (24) is fixedly installed at the output end of the high-temperature resistant water pump (23). The top of the main body (1) of the carbon dioxide stripping tower is provided with The exhaust gas outlet (7) is fixedly installed with a serpentine heat conduction pipe (25). The top end of the first conduit (24) extends into the exhaust gas outlet (7) and is fixedly installed at the top end of the serpentine heat conduction pipe (25). A second conduit (26) is fixedly installed on one side of the top of the carbon dioxide stripping tower body (1). The bottom end of the second conduit (26) extends into the upper part of the heat-insulating water tank (21). The top end of the second conduit (26) extends into the exhaust gas outlet (7) and is fixedly installed at the bottom end of the serpentine heat conduction pipe (25). A heat insulation cover (3) is fixedly fitted onto the outer wall of the carbon dioxide stripping tower body (1).

2. The carbon dioxide stripping tower according to claim 1, characterized in that: The detection end of the water level sensor (27) extends to the upper part of the interior of the insulated water tank (21), and the temperature measuring end of the water temperature sensor (28) extends to the lower part of the interior of the insulated water tank (21).

3. The carbon dioxide stripping tower according to claim 1, characterized in that: A water supply pipe (211) is fixedly installed on the left side of the top of the insulated water tank (21), and a drain pipe (212) is fixedly installed on the lower right side of the insulated water tank (21). Solenoid valves are installed on the outer walls of the insulated water pipe (22), the water supply pipe (211) and the drain pipe (212).

4. The carbon dioxide stripping tower according to claim 1, characterized in that: The bottom of the carbon dioxide stripping tower body (1) is provided with a liquid outlet (6), the lower right side of the carbon dioxide stripping tower body (1) is provided with an air inlet (4), and the upper right side of the carbon dioxide stripping tower body (1) is provided with a liquid inlet (5).

5. The carbon dioxide stripping tower according to claim 1, characterized in that: The outer walls of both the first conduit (24) and the second conduit (26) are fixedly fitted with heat-insulating sleeves.

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