Carbon capture device based on ship tail gas
By using a combination of exhaust gas separation mechanism, spray desulfurization tower and capture tank in ship exhaust gas treatment, the problems of high energy consumption and pipeline blockage of existing carbon capture devices are solved, and efficient and low-cost carbon dioxide capture is achieved.
Patent Information
- Application Number
- CN202422623085.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Existing carbon capture devices have problems such as high energy consumption, pipeline blockage and high site costs, especially in ship exhaust treatment, which cannot be effectively solved by existing technologies.
The carbon capture device consists of an exhaust gas separation mechanism, a spray desulfurization tower and a capture tank. It uses a fan to separate large particles, sprays desulfurization to treat the exhaust gas, and uses liquid nitrogen to low-temperature condense and capture carbon dioxide. The capture net and stirring paddle are combined to promote the desulfurization effect and achieve efficient capture of carbon dioxide.
It reduces energy consumption, reduces the risk of pipeline blockage, reduces site and cost requirements, and improves the efficiency and accuracy of carbon dioxide capture.
Smart Images
Figure CN223416989U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ship exhaust gas treatment, in particular to a carbon capture device based on ship exhaust gas. Background Art
[0002] Carbon dioxide is one of the main components of greenhouse gases that cause global warming.
[0003] Carbon capture and reuse is an important research direction in the field of flue gas purification.
[0004] At present, the carbon dioxide capture process is still mainly based on absorption towers and desorption towers, using alcohol amine solution as absorbent. After chemical absorption and desorption by the absorbent, high-purity carbon dioxide gas is obtained. Although this carbon capture system can capture carbon dioxide in flue gas, it has the following defects: (1) The absorbent solution contains a lot of water, and additional heat is required to heat the water during the absorbent regeneration process, resulting in high ineffective energy consumption; (2) When absorbing carbon dioxide, impurity particles in the exhaust gas will be sucked into the pipeline, causing pipeline blockage; (3) In order to achieve better absorption effect, the circulation volume of absorbent is huge, so it is necessary to build a taller and larger absorption tower, which requires higher site requirements and higher cost consumption.
[0005] In order to address the above problems, there is an urgent need for a carbon capture device based on ship exhaust gas. Utility Model Content
[0006] The purpose of the present invention is to provide a carbon capture device based on ship exhaust gas to solve the problems raised in the above background technology.
[0007] To achieve the above purpose, a carbon capture device based on ship exhaust is provided, comprising
[0008] An exhaust gas separation mechanism, wherein a fan is provided at the top air inlet of the exhaust gas separation mechanism, and the exhaust gas separation mechanism separates large particles in the exhaust gas of the ship after the fan draws in the exhaust gas;
[0009] A spray desulfurization tower, the inlet of which is connected to the gas outlet of the tail gas separation mechanism, and performs spray desulfurization treatment on the separated tail gas;
[0010] The capture tank has an inlet connected to the gas outlet of the spray desulfurization tower, and is used to perform low-temperature condensation treatment on the carbon dioxide in the tail gas by spraying liquid nitrogen, and the condensed carbon dioxide is collected.
[0011] Further, the tail gas separation mechanism comprises a separation tank, guide vanes, a tail gas discharge pipe and a dust discharge port, a plurality of guide vanes are fixedly installed at the top end of the inner cavity of the separation tank through supports, the tail gas sucked by the fan is guided to the inner wall of the separation tank by the guide vanes, and the guide vanes are inclined, the tail gas discharge pipe is arranged at the axial position of the separation tank and penetrates downward to be connected with the spray desulfurization tower, and the dust discharge port is arranged at the bottom of the side wall of the separation tank, wherein a dust collecting bag is connected to the dust discharge port, and a filter baffle for limiting the passage of large particles is further arranged at the top of the tail gas discharge pipe.
[0012] Further, an atomizing nozzle is arranged at the top end of the inner wall of the spray desulfurization tower, a flow guide plate is arranged below the atomizing nozzle, the flow guide plate is in an inverted V-shaped structure, a stirring paddle is further arranged at the bottom of the inner cavity of the spray desulfurization tower, and the spray desulfurization tower is connected with the trapping tank through a connecting pipe.
[0013] Further, a trapping net for trapping solid carbon dioxide is arranged in the trapping tank, a water pump is arranged at the side wall of the trapping tank, the water inlet end of the water pump is connected with the bottom of the trapping tank through a pipeline, the water outlet of the water pump is connected with the top of the trapping tank through a pipeline and forms a circulation, an air collecting hood is further arranged above the trapping net, and an exhaust port is further arranged at the side wall of the trapping tank.
[0014] Further, the plurality of guide vanes are arranged in a ring shape, and the tail gas moves downward in a spiral motion under the action of the guide vanes.
[0015] Compared with the prior art, the utility model has the advantages of:
[0016] 1. Even if the measuring ship turns or the geomagnetic detection device is affected by ocean currents and bounces up and down, the measurement direction of the proton precession magnetometer will not change, thereby improving the accuracy of measurement;
[0017] 2. The connecting structure enables the device to be easily disassembled and separated from the measurement. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0019] The meanings of the various reference numerals in the drawings are as follows:
[0020] 1. Tail gas separation mechanism; 2. Spray desulfurization tower; 201. Atomizing nozzle; 202. Flow guide plate; 203. Stirring paddle; 3. Trapping tank; 301. Trapping net; 303. Water pump; 304. Air collecting hood; 305. Exhaust port; 4. Separation tank; 5. Guide vane; 6. Tail gas discharge pipe; 7. Dust discharge port; 8. Filter baffle; 9. Connecting pipe; 10. Fan. DETAILED DESCRIPTION
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0022] Those skilled in the art will understand that, unless otherwise stated, the singular forms "a," "an," and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present utility model refers to the presence of the stated features, integers, steps, operations, elements, and / or components, but does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.
[0023] See also Figure 1 As shown, a carbon capture device based on ship exhaust is provided, comprising
[0024] The exhaust gas separation mechanism 1 is provided with a fan 10 at the top air inlet of the exhaust gas separation mechanism 1. The fan 10 separates the large particles in the exhaust gas of the ship after the exhaust gas is sucked in by the exhaust gas separation mechanism 1;
[0025] A spray desulfurization tower 2, the inlet of which is connected to the gas outlet of the tail gas separation mechanism 1, and performs spray desulfurization treatment on the separated tail gas;
[0026] The capture tank 3 has an inlet connected to the gas outlet of the spray desulfurization tower 2, and is used to perform low-temperature condensation treatment on the carbon dioxide in the tail gas by spraying liquid nitrogen, and collect the condensed carbon dioxide;
[0027] The exhaust gas separation mechanism 1 includes a separation tank 4, a guide plate 5, an exhaust gas discharge pipe 6 and a dust outlet 7. Several guide plates 5 are fixedly installed on the top of the inner cavity of the separation tank 1 through a bracket. Several of the guide plates 5 guide the exhaust gas sucked by the fan 10 to the inner wall of the separation tank 4. Several of the guide plates 5 are arranged in an annular shape, and the exhaust gas moves downward in a spiral motion under the action of the guide plates 5. The guide plates 5 are inclined. The exhaust gas discharge pipe 6 is arranged at the axial position of the separation tank 4 and penetrates downward to connect with the spray desulfurization tower 2. Next, the dust outlet 7 is provided at the bottom of the side wall of the separation tank 4, wherein a corresponding dust collecting bag is provided at the dust outlet 7 for collecting large particles of matter, and a filter baffle 8 is further provided on the top of the exhaust pipe 6 for limiting the passage of large particles of matter. After the exhaust gas forms a spiral, the large particles in the exhaust gas are affected by the centrifugal force and slowly fall along the inner wall of the separation tank 4. At the same time, under the influence of the centrifugal force, the pressure in the central area of the separation tank 4 decreases, and the exhaust gas gradually moves toward the central area and is then discharged through the exhaust pipe 6;
[0028] An atomizing nozzle 201 is provided at the top of the inner wall of the spray desulfurization tower 2, and a guide plate 202 is provided below the atomizing nozzle 201. The guide plate 202 is in an inverted "V" shape. The guide plate 302 is mounted on the inner wall of the spray desulfurization tower 2 through a bracket. A stirring paddle 203 is also provided at the bottom of the inner cavity of the spray desulfurization tower 2. The spray desulfurization tower 2 is connected to the capture tank 3 through a connecting pipe 9. The guide plate 202 can limit the flow direction of the exhaust gas, so that the desulfurizer sprayed from the atomizing nozzle 201 can better contact with the exhaust gas. The stirring paddle 203 provided at the bottom can promote better fusion of the desulfurizer and the exhaust gas, thereby achieving a better desulfurization effect.
[0029] Since the connecting pipe 9 is arranged below the guide plate 202, the tail gas must be in contact with the desulfurizer before it can be discharged from the connecting pipe 9 to the interior of the capture tank 3;
[0030] A capture net 301 for capturing solid carbon dioxide is provided inside the capture tank 3. A water pump 303 is provided on the side wall of the capture tank 3. The water inlet of the water pump 303 is connected to the bottom of the capture tank 3 through a pipe, and the water outlet of the water pump 303 is connected to the top of the capture tank 3 through a pipe to form a circulation. A gas collecting hood 304 is also provided above the capture net 301, and an exhaust port 305 is also provided on the side wall of the capture tank 3. In the capture tank 3, carbon dioxide is more easily condensed. Liquid nitrogen is flushed into the interior of the capture tank 3, and the liquid nitrogen is circulated through the water pump 303. The carbon dioxide in the exhaust gas is condensed and attached to the capture net 301 under the action of the liquid nitrogen; the liquid nitrogen at the bottom of the capture tank 3 is pumped to the top by the water pump 303 and sprayed using a nozzle, and the subsequent exhaust gas is discharged through the exhaust port 305.
[0031] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A carbon capture device based on ship exhaust, characterized by: include An exhaust gas separation mechanism (1), wherein a fan (10) is provided at the top air inlet of the exhaust gas separation mechanism (1), and the fan (10) separates large particles in the exhaust gas of the ship after the exhaust gas is sucked in by the exhaust gas separation mechanism (1); A spray desulfurization tower (2), the inlet of which is connected to the gas outlet of the tail gas separation mechanism (1), and performs spray desulfurization treatment on the separated tail gas; The capture tank (3) has an inlet connected to the gas outlet of the spray desulfurization tower (2), and performs low-temperature condensation treatment on carbon dioxide in the tail gas by spraying liquid nitrogen, and collects the condensed carbon dioxide.
2. The carbon capture device based on ship exhaust gas according to claim 1, characterized in that: The exhaust gas separation mechanism (1) includes a separation tank (4), a guide plate (5), an exhaust gas discharge pipe (6) and a dust discharge port (7). The top end of the inner cavity of the separation tank (4) is fixedly mounted with a plurality of guide plates (5) through a bracket. The plurality of guide plates (5) guide the exhaust gas sucked in by the fan (10) to the inner wall of the separation tank (4), and the guide plates (5) are arranged at an angle. The exhaust gas discharge pipe (6) is arranged at the axial center position of the separation tank (4) and passes through downward to be connected to the spray desulfurization tower (2). The dust discharge port (7) is arranged at the bottom of the side wall of the separation tank (4). The top of the exhaust gas discharge pipe (6) is also provided with a filter baffle (8) for limiting the passage of large particles.
3. The carbon capture device based on ship exhaust gas according to claim 2, characterized in that: An atomizing nozzle (201) is provided at the top of the inner wall of the spray desulfurization tower (2), a guide plate (202) is provided below the atomizing nozzle (201), and the guide plate (202) is in an inverted "V"-shaped structure. A stirring paddle (203) is also provided at the bottom of the inner cavity of the spray desulfurization tower (2), and the spray desulfurization tower (2) is connected to the capture tank (3) via a connecting pipe (9).
4. The carbon capture device based on ship exhaust gas according to claim 3, characterized in that: A capture net (301) for capturing solid carbon dioxide is provided inside the capture tank (3), a water pump (303) is provided on the side wall of the capture tank (3), a water inlet of the water pump (303) is connected to the bottom of the capture tank (3) through a pipe, and a water outlet of the water pump (303) is connected to the top of the capture tank (3) through a pipe to form a circulation, an air collecting hood (304) is further provided above the capture net (301), and an exhaust port (305) is further provided on the side wall of the capture tank (3).
5. The carbon capture device based on ship exhaust gas according to claim 4, characterized in that: The plurality of guide blades (5) are arranged in a ring shape, and the exhaust gas moves downward in a spiral motion under the action of the guide blades (5).