Energy-saving type steam boiler main machine

Abstract

The utility model relates to the technical field of steam boilers, and discloses an energy-saving steam boiler main engine which comprises a hearth and a boiler barrel, heating chambers are arranged in the front end and the rear end of the hearth respectively, and metal pipelines are fixedly installed at the inner bottoms of the heating chambers respectively. Uniformly-distributed water injection pipes are fixedly connected to the close ends of the metal pipelines, the upper ends of the water injection pipes penetrate through the hearth and extend into the boiler barrel, a chain grate stoker is arranged at the position, close to the lower side, in the hearth, and uniformly-distributed heat-resistant steel plates are fixedly mounted on the front inner wall and the rear inner wall of the hearth; the ends, away from each other, of the heat-resistant steel plates penetrate through and extend into the heating chamber. According to the device, combustion flames are directly utilized to heat the boiler body, heat energy generated by fuel combustion can be fully utilized, the heat energy utilization efficiency is improved, and the fuel is further utilized to preheat water and achieve the heat preservation effect when the water flows in a circulating system through structures such as a heat-resisting steel plate.

Description

Technical Field

[0001] This utility model relates to the field of steam boiler technology, and in particular to an energy-saving steam boiler main unit. Background Technology

[0002] In the existing field of steam boiler technology, traditional steam boilers mainly generate heat energy by burning fuels such as coal, and then use this heat energy to heat water, ultimately producing steam for various industrial applications, such as heating or power generation. However, these traditional boilers have many shortcomings in terms of heat energy utilization.

[0003] Traditional steam boilers typically rely solely on the flow of flue gas within the flue to heat the water inside the boiler. While effective, this heating method has relatively low thermal efficiency because a significant amount of heat carried by the flue gas during its flow is often not fully utilized, with some heat being lost during emission. Furthermore, traditional boilers often neglect the direct heating effect of the flames inside the furnace on the boiler body, which also leads to wasted thermal energy. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an energy-saving steam boiler host, which has the advantages of directly heating the boiler drum by fuel combustion and preheating and heat preservation of water, thus solving some of the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: an energy-saving steam boiler main unit, including a furnace and a boiler drum, wherein a heat chamber is provided inside both the front and rear ends of the furnace, and a metal pipe is fixedly installed at the bottom of each heat chamber. Water injection pipes are fixedly connected to the adjacent ends of the metal pipes, and the upper ends of the water injection pipes penetrate the furnace and extend into the interior of the boiler drum. A chain grate is provided inside the furnace near the lower side. Heat-resistant steel plates are fixedly installed on both the front and rear inner walls of the furnace, and the distant ends of the heat-resistant steel plates penetrate and extend into the interior of the heat chamber. A heat-conducting plate is fixedly installed at the upper end of each metal pipe, and the heat-resistant steel plates are connected to the heat-conducting plates.

[0006] Furthermore, each of the metal pipes is fixedly installed with a connected water supply pipe at its right end. The water supply pipes all penetrate the furnace and are connected to an external water supply device, that is, a high-pressure water conveying mechanism is used to pump clean water into the interior of the boiler drum.

[0007] Furthermore, a smoke inlet is provided at the lower end of the boiler drum near the left side, a smoke chamber one is provided inside the left end of the boiler drum, and evenly distributed smoke pipes are fixedly installed inside the boiler drum. A smoke chamber two is provided inside the right end of the boiler drum. The smoke chamber one and the smoke chamber two are connected by smoke pipes for heat exchange between the flue gas and water.

[0008] Furthermore, a chimney is provided at the upper end of the boiler drum at two corresponding flue chambers, and a coal supply mechanism is provided at the left end of the furnace. This structure can generate a negative pressure difference to guide the generated flue gas.

[0009] Furthermore, a uniformly distributed steel frame is fixedly installed at the lower end of the boiler drum. The boiler drum is fixedly installed at the upper end of the furnace via the steel frame. Sealing plates are fixedly connected between the upper end of the furnace and both ends of the boiler drum. A heat insulation cover is fixedly installed on the outside of the boiler drum at the upper end of the furnace. That is, the boiler drum is installed at the upper end of the furnace via the steel frame and sealed by the sealing plates to prevent flue gas from overflowing and causing waste and pollution. The heat insulation cover insulates the boiler drum and reduces its susceptibility to external influences.

[0010] Furthermore, a main steam valve is provided at the upper end of the boiler drum near the left side, and the boiler drum is also equipped with, but not limited to, a safety valve, a water level gauge, and a pressure gauge, thus ensuring the rationality of the structural design.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This energy-saving steam boiler host, through innovative design, not only utilizes the flue gas in the flue pipe to exchange heat with the water in the boiler drum to heat the water, but also directly uses the flame generated by fuel combustion to bake and heat the lower end of the boiler drum. This dual heating mechanism maximizes the utilization of the heat energy generated by fuel combustion. In addition, through the combination structure of heat-resistant steel plates and heat-conducting plates, the heat in the furnace is further transferred to the water injection pipe and metal pipes to preheat and keep the water warm, thereby significantly improving the efficiency of heat energy utilization. This design effectively reduces heat energy loss, making this boiler host more energy-efficient than traditional steam boilers.

[0013] 2. Because this boiler employs multiple heating methods, including direct flame heating, flue heat exchange, and heat transfer through heat-resistant steel plates and heat-conducting plates, these measures work together to make the water heating process faster and more efficient. Especially in the initial stage of water injection into the boiler drum, the design of the heat-resistant steel plates and other structures enables preheating of the water, thereby significantly shortening the time required for the water to reach boiling point. This design, which improves heating efficiency, not only enhances the overall performance of the boiler but also provides users with a faster and more stable steam supply, meeting the steam requirements of various industrial applications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a schematic cross-sectional view of the right side of this utility model.

[0018] In the diagram: 1. Furnace; 2. Heat chamber; 3. Metal pipe; 4. Water supply pipe; 5. Water injection pipe; 6. Boiler drum; 7. Flue gas inlet; 8. Flue gas chamber one; 9. Flue gas pipe; 10. Flue gas chamber two; 11. Chimney; 12. Coal supply mechanism; 13. Chain grate; 14. Heat-resistant steel plate; 15. Heat-conducting plate; 16. Steel frame; 17. Sealing plate; 18. Insulation cover; 19. Main steam valve. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4An energy-saving steam boiler main unit includes a furnace 1 and a boiler drum 6. Thermal chambers 2 are provided inside both the front and rear ends of the furnace 1. Metal pipes 3 are fixedly installed at the bottom of each thermal chamber 2. Water injection pipes 5 are fixedly connected to the adjacent ends of the metal pipes 3, and the upper ends of the water injection pipes 5 penetrate the furnace 1 and extend into the boiler drum 6. A chain grate 13 is provided near the lower side inside the furnace 1. Heat-resistant steel plates 14 are fixedly installed on both the front and rear inner walls of the furnace 1, and the distant ends of the heat-resistant steel plates 14 penetrate and extend into the thermal chamber 2. Heat-conducting plates 15 are fixedly installed at the upper ends of the metal pipes 3, and the heat-resistant steel plates 14 are connected to the heat-conducting plates 15. A connected water supply pipe 4 is fixedly installed at the right end of each metal pipe 3, and the water supply pipe 4 penetrates the furnace 1 and connects to the heat-conducting plates 15. Connected to an external water supply device, this device injects clean water into the boiler drum 6 through the water supply pipe 4 and the water supply equipment. The heat is transferred to the interior of the furnace 1 by heating the structure such as the heat-resistant steel plate 14 through the combustion flame, thereby further heating the water injection pipe 5 passing through it. At the same time, the combination structure of the heat-resistant steel plate 14 and the heat-conducting plate 15 can effectively transfer heat to the metal pipe 3, thereby heating the water flowing through it. That is, the design of the heat-resistant steel plate 14 and other structures can further utilize the flame of fuel combustion to preheat the water and maintain its temperature when flowing in the circulation system, further utilizing the heat energy of fuel combustion, thereby achieving the purpose of energy saving. At the same time, it can heat the water to the boiling state more quickly, improving the heating efficiency.

[0021] Please see Figures 2-3A flue gas inlet 7 is located near the left side of the lower end of the boiler drum 6. A first flue gas chamber 8 is located inside the left end of the boiler drum 6. Evenly distributed flue gas pipes 9 are fixedly installed inside the boiler drum 6. A second flue gas chamber 10 is located inside the right end of the boiler drum 6. The first flue gas chamber 8 and the second flue gas chamber 10 are connected by the flue gas pipes 9. A chimney 11 is located at the upper end of the boiler drum 6 corresponding to the second flue gas chamber 10. A coal supply mechanism 12 is located at the left end of the furnace 1. Evenly distributed steel frames 16 are fixedly installed at the lower end of the boiler drum 6. The boiler drum 6 is fixedly installed at the upper end of the furnace 1 via the steel frames 16. Sealing plates 17 are fixedly connected between the upper end of the furnace 1 and both the front and rear ends of the boiler drum 6. An insulation cover 18 is fixedly installed on the outside of the boiler drum 6 at the upper end of the furnace 1. During use, coal and other fuels are transported through the coal supply mechanism 12. The combustion is fully carried out on the chain grate 13 in the furnace 1. In this boiler main unit, the flames can not only bake the lower end of the boiler drum 6, thereby directly heating the clean water injected inside, but also allow the flue gas with a large amount of heat energy to enter the interior of the flue chamber 1 8 through the flue inlet 7, and then flow from the flue chamber 1 8 to the interior of the flue chamber 2 10 through the flue pipe 9, and finally be discharged through the chimney 11. During this process, the flue gas in the flue pipe 9 can exchange heat with the water in the boiler drum 6, thereby heating the water. Compared with traditional steam boilers, this device not only uses the flue pipe 9 and other structures to heat the water, but also can directly use the flames generated by fuel combustion to heat the boiler drum 6, making full use of the heat energy generated by fuel combustion.

[0022] Please see Figure 3 The upper end of the boiler drum 6 is equipped with a main steam valve 19 near the left side. The boiler drum 6 is also equipped with a safety valve, a water level gauge, and a pressure gauge, among other things. After steam is generated, it is delivered to the equipment that needs to be heated or generated through the main steam valve 19. The safety valve, water level gauge, and pressure gauge can ensure safety and compliance during the heating process.

[0023] Working Principle: During operation, coal and other fuels are transported to the chain grate 13 inside the furnace 1 via the coal supply mechanism 12 for complete combustion. In this boiler main unit, the flames not only heat the lower end of the boiler drum 6, thus directly heating the water injected inside, but also allow flue gas carrying a large amount of heat energy to enter the interior of the flue gas chamber 1 8 through the flue gas inlet 7, and then flow from the flue gas chamber 1 8 to the interior of the flue gas chamber 2 10 through the flue gas pipe 9, and finally be discharged through the chimney 11. During this process, the flue gas in the flue gas pipe 9 can react with the water in the boiler drum 6. Heat exchange occurs between the water and the boiler drum 6, thereby heating the water. After steam is generated, it is delivered to the equipment that needs heating or power generation through the main steam valve 19. In addition, during the process of injecting clean water into the boiler drum 6 through the water supply pipe 4 and the water supply equipment, the heat is transferred to the interior of the furnace 1 by heating the structure such as the heat-resistant steel plate 14 through the burning flame. This further heats the water injection pipe 5 that passes through the interior. At the same time, the combination structure of the heat-resistant steel plate 14 and the heat-conducting plate 15 can effectively transfer heat to the metal pipe 3.

Claims

1. An energy-saving steam boiler main unit, comprising a furnace (1) and a boiler drum (6), characterized in that: The furnace (1) has heat chambers (2) at both the front and rear ends. Metal pipes (3) are fixedly installed at the bottom of each heat chamber (2). Water injection pipes (5) are fixedly connected to the near ends of the metal pipes (3). The upper ends of the water injection pipes (5) penetrate the furnace (1) and extend into the interior of the boiler drum (6). A chain grate (13) is installed near the lower side inside the furnace (1). Heat-resistant steel plates (14) are fixedly installed on the front and rear inner walls of the furnace (1). The far ends of the heat-resistant steel plates (14) penetrate and extend into the interior of the heat chamber (2). Heat-conducting plates (15) are fixedly installed at the upper ends of the metal pipes (3). The heat-resistant steel plates (14) are connected to the heat-conducting plates (15).

2. The energy-saving steam boiler main unit according to claim 1, characterized in that: The right end of each metal pipe (3) is fixedly equipped with a connected water supply pipe (4), which passes through the furnace (1) and is connected to an external water supply device.

3. The energy-saving steam boiler main unit according to claim 1, characterized in that: A smoke inlet (7) is provided at the lower end of the boiler drum (6) near the left side. A smoke chamber one (8) is provided inside the left end of the boiler drum (6). A uniformly distributed smoke pipe (9) is fixedly installed inside the boiler drum (6). A smoke chamber two (10) is provided inside the right end of the boiler drum (6). The smoke chamber one (8) and the smoke chamber two (10) are connected by the smoke pipe (9).

4. The energy-saving steam boiler main unit according to claim 3, characterized in that: A chimney (11) is provided at the upper end of the boiler drum (6) at the corresponding flue chamber two (10), and a coal supply mechanism (12) is provided at the left end of the furnace (1).

5. The energy-saving steam boiler main unit according to claim 1, characterized in that: The lower end of the boiler drum (6) is fixedly installed with evenly distributed steel frames (16). The boiler drum (6) is fixedly installed on the upper end of the furnace (1) through the steel frames (16). The upper end of the furnace (1) and the front and rear ends of the boiler drum (6) are both fixedly connected with sealing plates (17). The upper end of the furnace (1) is fixedly installed with a heat insulation cover (18) on the outside of the boiler drum (6).

6. The energy-saving steam boiler main unit according to claim 1, characterized in that: The upper end of the boiler drum (6) is provided with a main steam valve (19) near the left side. The boiler drum (6) is also provided with a safety valve, a water level gauge and a pressure gauge, among other things.

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