Waste gas boiler for ultrahigh heat exchange ship
By using an impeller-driven scraper and a slider engaging mechanism, the problem of motor-driven cleaning of marine exhaust boilers and the inconvenience of disassembling and assembling collection tanks are solved, achieving low-energy automated cleaning and convenient disassembly and assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-31
AI Technical Summary
The cleaning brushes of existing marine exhaust boilers require a motor to drive the threaded rod, resulting in power consumption and inconvenience in disassembling and assembling the collection tank.
Automatic cleaning is achieved by using an impeller to drive a reciprocating screw and scraper. The impeller rotation is driven by gas flow, reducing energy consumption. A slider and locking mechanism are provided to facilitate the disassembly and assembly of the collection tank and ensure stable connection.
It achieves low-energy automated cleaning, improves cleaning efficiency and the convenience and stability of the collection tank, and reduces power consumption and operational difficulty.
Smart Images
Figure CN224065478U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas boiler technology, specifically to an ultra-high heat exchange marine waste gas boiler. Background Technology
[0002] Ultra-high heat exchange marine exhaust gas boilers play a vital role in many aspects of shipboard operations, including heat recovery and utilization, energy conservation and emission reduction, environmental protection, ensuring ship operation and safety, and maintenance and management. They are an indispensable part of the ship's propulsion system and are of great significance for improving the overall energy efficiency and environmental performance of ships.
[0003] During long-term use, the internal structure of existing marine exhaust boilers accumulates a large amount of dust, requiring regular cleaning. However, the small internal space of the exhaust boiler makes it difficult to clean the impurities adsorbed on the inner wall.
[0004] To address the aforementioned deficiencies, a waste gas boiler cleaning device with publication number CN218914975U is disclosed. This device comprises a connecting rod with locking blocks, a second connecting plate, and a return spring on both sides. During use, the second connecting plate engages with a push block to limit the position of the connecting rod. A first connecting plate, an internal groove, a thrust spring, and a cleaning brush are provided on one side of the connecting rod. During use, the cleaning brush, under the force of the thrust spring, increases its thrust, enhancing the cleaning of the sidewalls of the horizontal plate. Furthermore, a base plate, a groove, and a bottom block are provided inside the waste gas boiler. During use, the bottom block engages with the groove to limit the position of the threaded rod.
[0005] In actual use of the above device, although the cleaning purpose is achieved by the cleaning brush, the cleaning brush still needs to be driven by the motor's threaded rod to move. The motor requires electricity to drive it, which results in power consumption.
[0006] Therefore, we proposed an ultra-high heat exchange marine exhaust gas boiler that can effectively solve the above problems. Utility Model Content
[0007] The purpose of this utility model is to provide an ultra-high heat exchange marine exhaust gas boiler to solve the problem mentioned in the background art that the cleaning brushes on the market still need to be driven by a motor to move, and the motor requires electricity to drive, resulting in power loss.
[0008] To achieve the above objectives, this utility model provides the following technical solution: an ultra-high heat exchange marine exhaust gas boiler, comprising an exhaust gas boiler body, wherein an exhaust port is provided on the top of the exhaust gas boiler body;
[0009] The exhaust gas boiler body has a fixed support inside, and a reciprocating screw is connected to the middle of the support via a bearing. An impeller is keyed to the top of the reciprocating screw, and a scraper is threaded onto the reciprocating screw. The scraper is located at the bottom of the impeller, and its outer wall is attached to the inner wall of the exhaust gas boiler body to form a cleaning mechanism. A limit rod slides through the right side of the scraper, and both ends of the limit rod are fixed to the right side of the support. A collection tank is connected to the bottom of the exhaust gas boiler body.
[0010] Preferably, the scraper is arranged in a circular shape, and the outer side of the scraper is arranged in a trapezoidal shape.
[0011] Preferably, a slider is fixed at the bottom of the waste gas boiler body, and the outer end of the slider extends into the interior of the slide groove to form a locking mechanism.
[0012] Preferably, the chute is located inside the collection tank and is L-shaped.
[0013] Preferably, the slider has a sliding block inside, and the outer end of the block is semi-circular.
[0014] Preferably, the outer end of the card block extends into the interior of the card slot to form a locking mechanism, and the card slot is located inside the collection tank.
[0015] Preferably, the inner end of the card block is connected to a spring, and the inner end of the spring is connected inside the slider to form a limiting mechanism.
[0016] Compared with the prior art, the beneficial effects of this utility model are: this ultra-high heat exchange marine exhaust gas boiler has lower energy consumption and is easy to clean. The rotation of the impeller can drive the scraper to move, thereby reducing energy consumption. Furthermore, the use of the slider facilitates the cleaning of impurities. Its specific features are as follows:
[0017] The system is equipped with an impeller, which is driven to rotate by the flow of gas. The rotation of the impeller drives the reciprocating screw to rotate, which in turn drives the scraper to clean the inner wall of the waste gas boiler body, thereby reducing energy consumption.
[0018] Equipped with a slider, rotating the collection tank can cause the slider to disengage from the inside of the chute, thus facilitating the disassembly and assembly of the collection tank. This allows for centralized cleaning of impurities inside the collection tank, thereby improving ease of use.
[0019] A locking block is provided, and the outer end of the locking block extends into the interior of the locking groove to form a locking mechanism. The locking groove is opened inside the collection tank. The locking between the locking block and the locking groove can improve the stability of the connection between the slider and the groove.
[0020] A spring is provided, which is connected to the inner end of the block and the inner end of the spring is connected to the inside of the slider to form a limiting mechanism. This allows the spring to limit the block, thereby improving the stability of the block.
[0021] The boiler is equipped with a scraper, which is arranged in a circular shape with a trapezoidal outer edge. The movement of the scraper can clean the impurities adsorbed on the inner wall of the boiler body, thereby improving the cleaning effect. Attached Figure Description
[0022] Figure 1 This is a front view structural diagram of the present invention;
[0023] Figure 2 This is a schematic diagram of the connection structure between the collection tank and the waste gas boiler body of this utility model;
[0024] Figure 3 This is a schematic diagram of the connection structure between the waste gas boiler body and the support frame of this utility model;
[0025] Figure 4 This is a schematic diagram of the connection structure between the impeller and the reciprocating lead screw of this utility model;
[0026] Figure 5 This is a schematic diagram of the connection structure between the collection tank and the chute of this utility model;
[0027] Figure 6 This is a schematic diagram of the connection structure between the card block and the card slot of this utility model;
[0028] Figure 7 This is a schematic diagram of the connection structure between the collection tank and the slot of this utility model.
[0029] In the diagram: 1. Waste gas boiler body; 2. Exhaust port; 3. Support; 4. Reciprocating screw; 5. Impeller; 6. Scraper; 7. Limiting rod; 8. Collection tank; 9. Slider; 10. Slide groove; 11. Locking block; 12. Locking groove; 13. Spring. Detailed Implementation
[0030] 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.
[0031] Example 1: An ultra-high heat exchange marine exhaust gas boiler solves the problem that existing cleaning brushes still require a motor-driven threaded rod to move, which consumes electricity. The use of impeller 5 reduces energy consumption. The following is disclosed:
[0032] The top of the exhaust gas boiler body 1 is provided with an exhaust port 2; a support 3 is fixed inside the exhaust gas boiler body 1, and a reciprocating screw 4 is connected to the middle of the support 3 through a bearing, and an impeller 5 is keyed to the top of the reciprocating screw 4. A scraper 6 is threaded on the reciprocating screw 4. The scraper 6 is located at the bottom of the impeller 5, and the outer wall of the scraper 6 is attached to the inner wall of the exhaust gas boiler body 1 to form a cleaning mechanism. A limit rod 7 slides through the right side of the scraper 6, and the two ends of the limit rod 7 are fixed to the right side of the support 3. A collection tank 8 is connected to the bottom of the exhaust gas boiler body 1. The scraper 6 is arranged in a circular shape, and the outer side of the scraper 6 is arranged in a trapezoidal shape.
[0033] refer to Figures 1 to 4The high-temperature flue gas discharged from the marine diesel engine flows into the exhaust boiler body 1 from the lower smoke box. The flue gas transfers some of its heat to the water inside the exhaust boiler body 1, causing the water to vaporize and generate steam. After heat transfer, the water inside the exhaust boiler body 1 is heated and evaporated into steam. The generated steam can drive other auxiliary equipment, thereby enabling the operation of the auxiliary equipment. Over time, impurities will be adsorbed on the inner wall of the exhaust boiler body 1. The gas discharged from the exhaust port 2 drives the impeller 5 to rotate, which in turn drives the reciprocating screw 4 to rotate. The reciprocating screw 4 can drive the scraper 6 to move. The scraper 6 slides on the limit rod 7, so that the scraper 6 can only slide up and down. The movement of the scraper 6 can remove the impurities adsorbed on the inner wall of the exhaust boiler body 1. The system automatically cleans the boiler, eliminating the need for manual cleaning and achieving automated cleaning. The use of gas flow for cleaning also reduces energy consumption. To remove oil, foam, and sludge from the boiler surface and reduce the alkalinity and salinity of the boiler water, the upper and lower drain valves of the exhaust boiler body 1 should be drained regularly, generally 1-3 times per day. Drainage is best performed when the steam pressure is below 0.5 MPa. The water level gauge should be opened and closed rapidly multiple times during each drain. After draining, each drain valve should be checked for leaks; any leaks should be addressed. The water level gauge glass plate should be regularly flushed to ensure clarity and unobstructed connections. The steam safety valve's opening and closing pressure should be checked regularly. The safety valve can be manually opened to release pressure and prevent corrosion and seizing over time. When manually opening the safety valve, the boiler pressure must be above 0.3 MPa to prevent debris from causing leakage. During operation, the exhaust boiler body 1 should be blown clean daily. When blowing soot, open the soot blowing valve of the soot blowing device and use boiler steam to blow soot. Each soot blowing lasts about 1 minute and is repeated 1 to 3 times. When shutting down the boiler for a short period of time, just keep the original water level of the waste gas boiler body 1. When performing short-term maintenance on the waste gas boiler body 1, wet maintenance is adopted. After shutting down the boiler, drain the boiler water and then start the water pump to add the boiler water back to the normal working water level. Then add 10 kg of sodium carbonate and 5 kg of trisodium phosphate per cubic meter of boiler water. Finally, restart the water pump and continue pumping water until water overflows from the air valve at the top of the boiler. Then close all valves. In winter, when there is freezing, dry maintenance is required. After shutting down the exhaust gas boiler body 1, drain the boiler water, open the manhole cover, and dry the inside with compressed air. Then, wrap 2 kg of anhydrous calcium chloride per cubic meter of boiler volume in several gauze bags and put them into the boiler drum. Then, close the manhole cover and all valves tightly to prevent air from leaking in. Check it once a month thereafter. If the desiccant becomes deliquescent, it should be replaced. Before using the exhaust gas boiler body 1, all the desiccant must be removed.
[0034] Example 2: A high-efficiency heat exchange marine waste gas boiler solves the problem that the existing collection tank 8 is difficult to disassemble and assemble due to its bolted connection. The use of a slider 9 improves the ease of disassembly and assembly of the collection tank 8. The following is disclosed:
[0035] A slider 9 is fixed at the bottom of the waste gas boiler body 1, and the outer end of the slider 9 extends into the interior of the slide groove 10 to form a locking mechanism. The slide groove 10 is opened inside the collection tank 8, and the slide groove 10 is arranged in an "L" shape.
[0036] refer to Figure 2 , Figures 5 to 7 Impurities will enter the collection tank 8 for centralized storage. When it is necessary to clean the impurities in the collection tank 8, the collection tank 8 is rotated, which causes the slider 9 to rotate. The slider 9 then slides inside the slide groove 10. After the slider 9 rotates to the position, the collection tank 8 is pulled, which moves the slider 9 to disengage from the slide groove 10. This allows the collection tank 8 to separate from the exhaust gas boiler body 1, thereby cleaning the impurities in the collection tank 8. Then, by reversing the above operation, the slider 9 will engage with the slide groove 10, and the collection tank 8 can be fixed on the exhaust gas boiler body 1, thus improving the convenience of cleaning impurities.
[0037] Example 3: An ultra-high heat exchange marine exhaust gas boiler solves the problem of unstable connection between slider 9 and slide groove 10 in Example 2. The stability of the connection between slider 9 and slide groove 10 can be improved by connecting block 11 and slot 12. The following is disclosed:
[0038] The slider 9 has a sliding connection to a locking block 11, and the outer end of the locking block 11 is semi-circular. The outer end of the locking block 11 extends into the inside of the locking groove 12 to form a locking mechanism. The locking groove 12 is opened inside the collection tank 8. The inner end of the locking block 11 is connected to a spring 13, and the inner end of the spring 13 is connected to the inside of the slider 9 to form a limiting mechanism.
[0039] refer to Figure 2 , Figures 5 to 7 The movement of slider 9 causes block 11 to rotate, which in turn causes block 11 to press against slot 12. This pressing causes block 11 to slide into slider 9, disengaging it from slot 12. The movement of block 11 also compresses spring 13, facilitating slider 9's disengagement from slot 10. The force of spring 13 pushes block 11 to move, causing it to extend into slot 12 and engage, thus improving the stability of the connection between slider 9 and slot 10.
[0040] Working principle: When using this type of ultra-high heat exchange marine exhaust gas boiler, firstly, refer to... Figures 1 to 4 The high-temperature flue gas discharged from the marine diesel engine flows into the exhaust boiler body 1 from the lower smoke box. The flue gas transfers some of its heat to the water inside the exhaust boiler body 1, causing the water to vaporize and generate steam. The water inside the exhaust boiler body 1 is heated and evaporated into steam. Over time, impurities will be adsorbed on the inner wall of the exhaust boiler body 1. The gas discharged from the exhaust port 2 will drive the impeller 5 to rotate, and the reciprocating screw 4 can drive the scraper 6 to move. The movement of the scraper 6 can clean the impurities adsorbed on the inner wall of the exhaust boiler body 1, thereby achieving the purpose of automated cleaning. Furthermore, the cleaning effect achieved by the flow of gas also reduces the energy consumption.
[0041] refer to Figure 2 , Figures 5 to 7 Impurities will enter the inside of the collection tank 8 for centralized storage. When it is necessary to clean the impurities in the collection tank 8, the collection tank 8 is rotated, which causes the slider 9 to rotate. After the slider 9 rotates to the position, the collection tank 8 is pulled, which causes the slider 9 to move and disengage from the groove 10. Then, by reversing the above operation, the slider 9 will engage with the groove 10, and the collection tank 8 can be fixed on the waste gas boiler body 1, thereby improving the convenience of cleaning impurities.
[0042] refer to Figure 2 , Figures 5 to 7 The movement of slider 9 can drive the locking block 11 to rotate, which causes the locking block 11 to rotate and squeeze against the locking groove 12. The movement of locking block 11 will squeeze spring 13, thus making it easier for slider 9 to disengage from the sliding groove 10. The force of spring 13 will push locking block 11 to move, thereby improving the stability of the connection between slider 9 and sliding groove 10.
[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An ultra-high heat exchange marine exhaust gas boiler, comprising an exhaust gas boiler body (1), the top of the exhaust gas boiler body (1) is provided with an exhaust port (2); characterized in that The inside of the exhaust gas boiler body (1) is fixed with a support (3), the middle part of the support (3) is connected with a reciprocating screw rod (4) through a bearing, the top of the reciprocating screw rod (4) is keyed with an impeller (5), a scraper (6) is threadedly connected on the reciprocating screw rod (4), the scraper (6) is located at the bottom of the impeller (5), the outer wall of the scraper (6) is attached to the inner wall of the exhaust gas boiler body (1) to form a cleaning mechanism, a limiting rod (7) penetrates through the right side of the scraper (6) to slide, the both ends of the limiting rod (7) are fixed on the right side of the support (3), and the bottom of the exhaust gas boiler body (1) is connected with a collecting tank (8).
2. A superhigh heat transfer exhaust gas boiler for marine use according to claim 1, characterized in that: The scraper (6) is arranged in a circular ring shape, and the outer side of the scraper (6) is arranged in a trapezoidal shape.
3. A superhigh heat transfer marine exhaust gas boiler according to claim 1, characterized in that: The bottom of the exhaust gas boiler body (1) is fixed with a sliding block (9), and the outer end of the sliding block (9) extends into the inside of a sliding groove (10) to form a clamping mechanism.
4. A superhigh heat transfer exhaust gas boiler for ships according to claim 3, characterized in that: The sliding groove (10) is opened in the inside of the collecting tank (8), and the sliding groove (10) is arranged in an "L" shape.
5. A superhigh heat transfer exhaust gas boiler for ships according to claim 3, characterized in that: The inside of the sliding block (9) is slidably connected with a clamping block (11), and the outer end of the clamping block (11) is arranged in a semicircular shape.
6. A superhigh heat transfer exhaust gas boiler for ships according to claim 5, characterized in that: The outer end of the clamping block (11) extends into the inside of a clamping groove (12) to form a clamping mechanism, and the clamping groove (12) is opened in the inside of the collecting tank (8).
7. A superhigh heat transfer exhaust gas boiler for ships according to claim 6, characterized in that: The inner end of the clamping block (11) is connected with a spring (13), and the inner end of the spring (13) is connected in the inside of the sliding block (9) to form a limiting mechanism.