Marine flue gas desulfurization and purification device

Abstract

The utility model discloses a marine flue gas desulfurization purification device which comprises a flue gas access pipe, a flue gas discharge pipe, a main desulfurization purification device and an auxiliary desulfurization purification device, the exhaust end of the flue gas access pipe is connected with a first three-way valve, and the access end of the flue gas discharge pipe is connected with a second three-way valve. The connecting-in end of the main desulfurization purification device is connected with a first connecting-in pipe, and the connecting-in end of the auxiliary desulfurization purification device is connected with a second connecting-in pipe. With the adoption of the structure, the desulfurization purification device and the auxiliary desulfurization purification device are arranged in the flue gas pipeline, and the first three-way valve and the second three-way valve can be synchronously driven through the synchronous driving assembly, so that diversion can be carried out simultaneously, and when one purification device is maintained, the secondary desulfurization purification device can be maintained; according to the flue gas purification device, the channel of one purification device can be switched, so that flue gas passes through the other purification device, and the purification device can be maintained without shutdown.

Description

Technical Field

[0001] The utility model relates to the technical field of ship engineering, in particular to a ship-based flue gas desulfurization purification device. Background Art

[0002] Exhaust gas refers to toxic and harmful gases discharged by humans in the process of production and life. When the exhaust gas of ship diesel engines is discharged, it needs to be purified by flue gas desulfurization purification. The existing purification device is arranged in a single line, that is, the flue gas is connected to a single flue gas desulfurization purification, and the waste is discharged after purification. The existing purification device, such as the "A kind of exhaust gas desulfurization purification device" disclosed in patent application number CN201620258268.X, has an air inlet and exhaust on the main body, and the flue gas is discharged after a set of purification processes.

[0003] The purification device needs maintenance after being used for a period of time, and the filter screen may become clogged and need to be replaced. However, maintenance and replacement will interrupt the purification process, resulting in the ship having to be anchored for a long time for maintenance. This will prevent maintenance personnel from repairing it in time, which will affect the normal work of the ship. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a marine flue gas desulfurization purification device to solve the problem that the maintenance personnel cannot perform maintenance in time, which will affect the normal work of the ship.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A marine flue gas desulfurization and purification device comprises a flue gas access pipe, a flue gas discharge pipe, a main desulfurization and purification device and a secondary desulfurization and purification device, wherein the exhaust end of the flue gas access pipe is connected to a No. 1 three-way valve, the access end of the flue gas discharge pipe is connected to a No. 2 three-way valve, the access end of the main desulfurization and purification device is connected to a first access pipe, the access end of the secondary desulfurization and purification device is connected to a second access pipe, and the first access pipe and the second access pipe are respectively connected to the No. 1 three-way valve, the access end of the main desulfurization and purification device is connected to a first discharge pipe, the access end of the secondary desulfurization and purification device is connected to a second discharge pipe, and the first discharge pipe and the second discharge pipe are respectively connected to the No. 2 three-way valve, and a synchronous drive component is installed on the No. 1 three-way valve.

[0007] Preferably, the No. 1 three-way valve and the No. 2 three-way valve both include a three-way valve body, a central axis is installed inside the three-way valve body, and a right-angled baffle is rotatably connected inside the three-way valve body.

[0008] Preferably, the synchronous drive assembly includes a driving pulley, a driven pulley and a synchronous belt, the two ends of the synchronous belt are respectively sleeved on the driving pulley and the driven pulley, the driving pulley is driven by a driving member, the driving pulley is installed on the No. 1 three-way valve, and the driven pulley is installed on the No. 2 three-way valve.

[0009] Preferably, temperature sensors are installed in both the main desulfurization purification device and the auxiliary desulfurization purification device, and door sealing plates are installed on both the main desulfurization purification device and the auxiliary desulfurization purification device, and electronic locks are installed on the door sealing plates, the temperature sensor is electrically connected to the controller, and the controller is electrically connected to the electronic lock.

[0010] In summary, the beneficial effects of the utility model are:

[0011] First, the utility model provides a marine flue gas desulfurization purification device, which is provided with a desulfurization purification device and a secondary desulfurization purification device in a flue gas pipeline, and can synchronously drive the No. 1 three-way valve and the No. 2 three-way valve through a synchronous drive component, so that the channel can be changed at the same time, so that when one of the purification devices is under maintenance, the channel of the purification device can be switched to allow the flue gas to pass through another purification device, and then the purification device can be maintained without stopping the machine, which solves the problem that the maintenance personnel of the existing single-channel flue gas purification device cannot repair it in the first time, which affects the normal operation of the ship, so that the staff has sufficient time to carry out maintenance without stopping the ship.

[0012] Second, the temperature sensors can sense the temperature inside the main desulfurization purification device and the auxiliary desulfurization purification device. When the temperature is high, the controller can be used to lock the door panels with electronic locks, so that personnel cannot open them easily, thus reducing the occurrence of safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a basic structural schematic diagram of the utility model;

[0014] Figure 2 This is a cross-sectional view of a No. 1 three-way valve of the utility model;

[0015] Figure 3 It is a cross-sectional view of the No. 1 three-way valve of the utility model.

[0016] Figure numerals: 1. Flue gas access pipe; 2. Flue gas discharge pipe; 3. Main desulfurization purification device; 4. Auxiliary desulfurization purification device; 5. Three-way valve No. 1; 51. Three-way valve body; 52. Central axis; 53. Angle baffle; 6. Three-way valve No. 2; 7. First access pipe; 8. Second access pipe; 9. First discharge pipe; 10. Second discharge pipe; 11. Synchronous drive assembly; 111. Driving pulley; 112. Driven pulley; 113. Synchronous belt; 12. Temperature sensor; 13. Door sealing plate; 14. Electronic lock; 15. Controller. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0019] like Figure 1 - Figure 3 As shown, the utility model provides a marine flue gas desulfurization purification device, comprising a flue gas access pipe 1, a flue gas exhaust pipe 2, a main desulfurization purification device 3 and a secondary desulfurization purification device 4, the exhaust end of the flue gas access pipe 1 is connected to a No. 1 three-way valve 5, the access end of the flue gas exhaust pipe 2 is connected to a No. 2 three-way valve 6, the access end of the main desulfurization purification device 3 is connected to a first access pipe 7, the access end of the secondary desulfurization purification device 4 is connected to a second access pipe 8, and the first access pipe 7 and the second access pipe 8 are respectively connected to the No. 1 three-way valve 5, the access end of the main desulfurization purification device 3 is connected to a first discharge pipe 9, the access end of the secondary desulfurization purification device 4 is connected to a second discharge pipe 10, and the first discharge pipe 9 and the second discharge pipe 10 are respectively connected to the No. 2 three-way valve 6, and a synchronous drive component 11 is installed on the No. 1 three-way valve 5.

[0020] The flue gas access pipe 1 is used for accessing flue gas, the main desulfurization purification device 3 and the auxiliary desulfurization purification device 4 are both used for flue gas purification, the flue gas discharge pipe 2 is used for flue gas discharge, the No. 1 three-way valve 5 can divert the access of the flue gas, and the No. 2 three-way valve 6 can be connected to divert the discharge of the flue gas. The synchronous drive component 11 can drive the No. 1 three-way valve 5 and the No. 2 three-way valve 6 synchronously, so that they can be diverted at the same time. Therefore, when in use, the flue gas enters the main desulfurization purification device 3 from the flue gas access pipe 1 for purification, and is discharged from the flue gas discharge pipe 2. When maintenance is needed, the No. 1 three-way valve 5 and the No. 2 three-way valve 6 are changed synchronously, so that the flue gas enters the auxiliary desulfurization purification device 4 from the flue gas access pipe 1 for purification, and is discharged from the flue gas discharge pipe 2, that is, maintenance can be carried out without stopping the machine.

[0021] The No. 1 three-way valve 5 and the No. 2 three-way valve 6 both include a three-way valve body 51, a central axis 52 is installed inside the three-way valve body 51, and a right-angled baffle 53 is rotatably connected inside the three-way valve body 51. One of the three-way valve bodies 51 is connected to the flue gas discharge pipe 2, and the other two are respectively connected to the main desulfurization purification device 3 and the auxiliary desulfurization purification device 4. The angled baffle 53 is formed by two semicircular plates connected at right angles, so when the central axis 52 is rotated, one of the channels leading to the main desulfurization purification device 3 and the auxiliary desulfurization purification device 4 can be blocked, and the conversion of the channels can be achieved.

[0022] The synchronous drive assembly 11 includes a driving pulley 111, a driven pulley 112 and a synchronous belt 113. The two ends of the synchronous belt 113 are respectively sleeved on the driving pulley 111 and the driven pulley 112. The driving pulley 111 is driven by a driving member. The driving pulley 111 is installed on the No. 1 three-way valve 5, and the driven pulley 112 is installed on the No. 2 three-way valve 6. By using the function of the synchronous belt 113, when the driving pulley 111 is rotated, the driven pulley 112 can be rotated synchronously, and then the conversion of the flue can be synchronously realized. The driving pulley 111 is driven by a driving member, and the driving member can be driven by a motor or a manual handle.

[0023] Temperature sensors 12 are installed in both the main desulfurization purification device 3 and the auxiliary desulfurization purification device 4. Door plates 13 are installed on both the main desulfurization purification device 3 and the auxiliary desulfurization purification device 4. Electronic locks 14 are installed on the door plates 13. The temperature sensor 12 is electrically connected to a controller 15, and the controller 15 is electrically connected to the electronic lock 14. When one of the purification devices needs to be maintained, the temperature in the purification device that has just stopped working is high and has high-temperature exhaust gas. At this time, it is easy to cause injuries to personnel if personnel open the door. The temperature sensor 12 can sense the temperature in the main desulfurization purification device 3 and the auxiliary desulfurization purification device 4. When the temperature is high, the electronic lock 14 is set to lock the door plates 13 by using the controller 15, so that personnel cannot open it easily, thereby reducing the occurrence of safety accidents. When the temperature is lower than 40 degrees, the electronic lock 14 is automatically opened. At the same time, a display screen is set on the controller 15 to display the temperature information of the temperature sensor 12. The staff can observe intuitively during maintenance and make safety preparations.

[0024] Working principle: When in use, the flue gas enters the main desulfurization purification device 3 from the flue gas access pipe 1 for purification and is discharged from the flue gas exhaust pipe 2. When maintenance is required, the No. 1 three-way valve 5 and the No. 2 three-way valve 6 are synchronously changed, so that the flue gas enters the auxiliary desulfurization purification device 4 from the flue gas access pipe 1 for purification and is discharged from the flue gas exhaust pipe 2, that is, maintenance can be carried out without stopping the machine. The auxiliary desulfurization purification device 4 needs to be carried out in the same way as above. By utilizing the effect of the synchronous belt 113, when the driving pulley 111 is rotated, the driven pulley 112 can be rotated synchronously, and then the flue can be converted synchronously. The driving pulley 111 is driven by the driving member. When one of the purification devices needs to be maintained, the temperature sensor 12 can sense the temperature inside the main desulfurization purification device 3 and the auxiliary desulfurization purification device 4. When the temperature is high, the controller 15 is used to set the electronic lock 14 to lock the door plate 13, so that people cannot open it easily, thereby reducing the occurrence of safety accidents.

[0025] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A marine flue gas desulfurization purification device, comprising a flue gas inlet pipe (1), a flue gas discharge pipe (2), a main desulfurization purification device (3) and a secondary desulfurization purification device (4), characterized in that: The exhaust end of the flue gas access pipe (1) is connected to a No. 1 three-way valve (5), the access end of the flue gas discharge pipe (2) is connected to a No. 2 three-way valve (6), the access end of the main desulfurization purification device (3) is connected to a first access pipe (7), the access end of the auxiliary desulfurization purification device (4) is connected to a second access pipe (8), and the first access pipe (7) and the second access pipe (8) are respectively connected to the No. 1 three-way valve (5), the access end of the main desulfurization purification device (3) is connected to a first discharge pipe (9), the access end of the auxiliary desulfurization purification device (4) is connected to a second discharge pipe (10), and the first discharge pipe (9) and the second discharge pipe (10) are respectively connected to the No. 2 three-way valve (6), and a synchronous drive component (11) is installed on the No. 1 three-way valve (5).

2. A marine flue gas desulfurization purification device according to claim 1, characterized in that: The No. 1 three-way valve (5) and the No. 2 three-way valve (6) both comprise a three-way valve body (51), a central shaft (52) being installed inside the three-way valve body (51), and a right-angled baffle (53) being rotatably connected inside the three-way valve body (51).

3. A marine flue gas desulfurization purification device according to claim 1, characterized in that: The synchronous drive assembly (11) comprises a driving pulley (111), a driven pulley (112) and a synchronous belt (113); two ends of the synchronous belt (113) are respectively sleeved on the driving pulley (111) and the driven pulley (112); the driving pulley (111) is driven by a driving member; the driving pulley (111) is mounted on a No. 1 three-way valve (5); and the driven pulley (112) is mounted on a No. 2 three-way valve (6).

4. A marine flue gas desulfurization purification device according to claim 1, characterized in that: Temperature sensors (12) are installed in both the main desulfurization purification device (3) and the auxiliary desulfurization purification device (4); door sealing plates (13) are installed on both the main desulfurization purification device (3) and the auxiliary desulfurization purification device (4); an electronic lock (14) is installed on the door sealing plate (13); the temperature sensor (12) is electrically connected to a controller (15); and the controller (15) is electrically connected to the electronic lock (14).

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