Large grate-fired pressure phase-change heat exchange hot water boiler

Abstract

The utility model discloses a large grate-fired pressure phase-change heat exchange hot water boiler which comprises a base, a first hydraulic push rod is arranged on the base, a second hydraulic push rod is arranged below the first hydraulic push rod, a third hydraulic push rod is arranged below the second hydraulic push rod, a fourth hydraulic push rod is arranged below the third hydraulic push rod, and a third hydraulic push rod is arranged below the fourth hydraulic push rod. A metal blade is arranged on the base, a motor is fixedly connected to the metal blade, a bearing is fixedly connected to the metal blade, a pressure reduction piece is arranged on the base, and a fire grate is arranged in the pressure reduction piece. By means of the structure, the motor drives the metal blades to rotate through the bearing, so that the air inlet amount is adjusted, the first hydraulic push rod, the second hydraulic push rod and the third hydraulic push rod push the fourth connecting block to drive the pressure reducing piece and the second circular ring to move, and the second circular ring drives the fire grate to move to achieve fuel layering; and insufficient combustion caused by accumulation of the combustion layers is prevented.

Description

Technical Field

[0001] This utility model relates to the field of hot water boiler technology, and in particular to a large-scale pressurized phase change hot water boiler with stoker combustion. Background Technology

[0002] Early hot water boilers were mostly simple in structure and had low thermal efficiency, which could not meet the large-scale hot water demand. For example, some small atmospheric pressure hot water boilers had crude combustion methods and incomplete fuel combustion, which not only caused energy waste but also generated a large amount of pollutant emissions. With social development, the demand for centralized heating and industrial hot water has increased dramatically, especially in large commercial buildings, industrial plants and densely populated residential areas, where the demand for hot water and the requirements for stability are getting higher and higher. Traditional hot water boilers are difficult to meet these demands in terms of capacity and heat output stability.

[0003] In existing devices, the fixed ventilation volume prevents automatic adjustment based on the combustion requirements of different fuels, resulting in ineffective control of combustion. This fixed ventilation volume design makes it impossible to finely adjust the fuel combustion process according to its characteristics, potentially leading to incomplete combustion, increased exhaust emissions, and environmental pollution. Furthermore, due to the suboptimal system design, the slag removal process is overly cumbersome, requiring manual intervention, which is time-consuming and inefficient, increasing operational difficulty and costs. In addition, uneven fuel accumulation in some devices may lead to poor air circulation, further exacerbating incomplete combustion and creating a vicious cycle. Utility Model Content

[0004] The purpose of this invention is to provide a large-scale pressurized phase-change hot water boiler that can flexibly adjust the air intake according to different fuel types and combustion requirements, thereby effectively preventing incomplete combustion during the combustion process, reducing the emission of harmful exhaust gases, and reducing environmental pollution. At the same time, this design can simplify the slag removal operation steps, thereby saving a lot of working time. In addition, it can prevent uneven fuel accumulation and ensure unobstructed air circulation, thereby improving combustion efficiency.

[0005] To achieve the above objectives, a large-scale pressurized phase change hot water boiler with stoker combustion is provided, including a base, a first hydraulic push rod disposed on the base, a second hydraulic push rod disposed below the first hydraulic push rod, a third hydraulic push rod disposed below the second hydraulic push rod, and a fourth hydraulic push rod disposed below the third hydraulic push rod. Metal blades are disposed on the base, a motor is fixedly connected to the metal blades, and a bearing is fixedly connected to the metal blades. Pressure reducing plates are disposed on the base, and a grate is disposed within the pressure reducing plates.

[0006] According to the large-scale pressurized phase change hot water boiler with stoker combustion, a housing is provided on the base, and a first connecting block is fixedly connected to the base.

[0007] According to the aforementioned large-scale pressurized phase change hot water boiler, a first outer shell is fixedly connected to the first connecting block, and a second outer shell is slidably connected inside the first outer shell.

[0008] According to the large-scale pressurized phase change hot water boiler with stoker combustion, a second connecting block is fixedly connected to the base, and the first hydraulic push rod is fixedly connected to the second connecting block.

[0009] According to the aforementioned large-scale pressurized phase change hot water boiler, the second hydraulic push rod is fixedly connected to the second connecting block, the third hydraulic push rod is fixedly connected to the second connecting block, and the fourth hydraulic push rod is fixedly connected to the second connecting block.

[0010] According to the aforementioned large-scale pressurized phase change hot water boiler, a groove is provided inside the first outer shell, and a high-pressure conversion layer is provided inside the second outer shell.

[0011] According to the aforementioned large-scale pressurized phase change hot water boiler, a third connecting block is fixedly connected to the fourth hydraulic push rod, and a first ring is fixedly connected to the third connecting block.

[0012] According to the aforementioned large-scale pressurized phase change hot water boiler, a fourth connecting block is fixedly connected to the first hydraulic push rod, the second hydraulic push rod, and the third hydraulic push rod, and the pressure reducing plate is fixedly connected to the fourth connecting block.

[0013] According to the aforementioned large-scale pressurized phase change hot water boiler, a second ring is fixedly connected inside the pressure reducing plate, and the grate is fixedly connected to the second ring.

[0014] Beneficial effects:

[0015] 1. This utility model is equipped with a motor, which drives the metal blades to rotate through the bearings, thereby adjusting the air intake volume and preventing the fixed air intake volume from causing uneven combustion of different types of fuels. Due to the differences in calorific value, moisture content, volatility and other characteristics of different fuels, a fixed air intake volume may not meet the needs of all fuels, resulting in incomplete combustion of some fuels. This incomplete combustion not only wastes energy, but also produces a large amount of harmful exhaust gas, increasing environmental pollution and safety hazards.

[0016] 2. This utility model employs multiple hydraulic push rods and a grate. The first, second, and third hydraulic push rods respectively drive the fourth connecting block, which in turn moves the pressure reducing plate and the second ring. The second ring moves the grate to achieve fuel stratification, preventing the combustion layers from accumulating together and causing incomplete combustion. When removing slag, the fourth hydraulic push rod simply moves the third connecting block and the first ring back, and the first ring moves the metal blades back. Under the action of gravity, the slag falls into the box, eliminating the cumbersome operation in the slag removal process and making it more efficient and convenient.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a perspective view of a large-scale pressurized phase change hot water boiler with stoker combustion proposed in this utility model.

[0020] Figure 2 This is a cross-sectional view of the first outer shell of a large-scale pressurized phase change hot water boiler with layered combustion proposed in this utility model.

[0021] Figure 3 This is a cross-sectional view of the second outer shell of a large-scale pressurized phase change hot water boiler with layered combustion, as proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the metal blades of a large-scale pressurized phase change hot water boiler with laminar combustion, as proposed in this utility model.

[0023] Figure 5 This is a schematic diagram of the components of the motor in a large-scale pressurized phase change hot water boiler with stoker combustion proposed in this utility model.

[0024] Figure 6 This is a schematic diagram of the grate components of a large-scale pressurized phase change hot water boiler with stoker combustion proposed in this utility model.

[0025] Legend:

[0026] 1. Base; 2. Housing; 3. First connecting block; 4. First outer shell; 5. Second outer shell; 6. Second connecting block; 7. First hydraulic push rod; 8. Second hydraulic push rod; 9. Third hydraulic push rod; 10. Fourth hydraulic push rod; 11. Groove; 12. High-pressure conversion layer; 13. Third connecting block; 14. First ring; 15. Metal blade; 16. Motor; 17. Bearing; 18. Fourth connecting block; 19. Pressure reducing plate; 20. Second ring; 21. Grate. Detailed Implementation

[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0028] Reference Figure 1-6 This utility model discloses a large-scale pressurized phase change hot water boiler with stoker combustion, comprising a base 1, a first hydraulic push rod 7 on the base 1, a second hydraulic push rod 8 below the first hydraulic push rod 7, a third hydraulic push rod 9 below the second hydraulic push rod 8, a fourth hydraulic push rod 10 below the third hydraulic push rod 9, metal blades 15 on the base 1, a motor 16 fixedly connected to the metal blades 15, a bearing 17 fixedly connected to the metal blades 15, a pressure reducing plate 19 on the base 1, and a grate 21 inside the pressure reducing plate 19.

[0029] Specifically: This achieves indirect heating, and the placement of the box 2 on the base 1 makes it easier to replace the ash and slag collection after it is full.

[0030] A housing 2 is mounted on the base 1, and a first connecting block 3 is fixedly connected to the base 1.

[0031] Specifically: Box 2 is used to collect ash and slag, and it is convenient to quickly replace box 2.

[0032] A first outer shell 4 is fixedly connected to the first connecting block 3, and a second outer shell 5 is slidably connected inside the first outer shell 4.

[0033] Specifically: the first connecting block 3 is used to fix the position of the first outer shell 4, and the second outer shell 5 can be removed from the first outer shell 4.

[0034] A second connecting block 6 is fixedly connected to the base 1, and a first hydraulic push rod 7 is fixedly connected to the second connecting block 6.

[0035] Specifically: the second connecting block 6 is used to securely fix the first hydraulic push rod 7.

[0036] The second hydraulic push rod 8 is fixedly connected to the second connecting block 6, the third hydraulic push rod 9 is fixedly connected to the second connecting block 6, and the fourth hydraulic push rod 10 is fixedly connected to the second connecting block 6.

[0037] Specifically: the second connecting block 6 is used to fix the first hydraulic push rod 7, the second hydraulic push rod 8, the third hydraulic push rod 9 and the fourth hydraulic push rod 10 to prevent deviation.

[0038] The first outer shell 4 has a groove 11 inside, and the second outer shell 5 has a high-voltage conversion layer 12 inside.

[0039] Specifically: the groove 11 is used for the movement and fixation of the fourth connecting block 18 and the pressure reducing plate 19. The liquid is heated and evaporated into water vapor in the high pressure conversion layer 12, then rises to heat the second outer shell 5, and after heating, it cools down into liquid and falls to form a cycle.

[0040] A third connecting block 13 is fixedly connected to the fourth hydraulic push rod 10, and a first ring 14 is fixedly connected to the third connecting block 13.

[0041] Specifically: the fourth hydraulic push rod 10 pushes the third connecting block 13 to move the first ring 14, and the first ring 14 moves the metal blade 15. When it moves to the bottom of the first outer shell 4, the motor 16 drives the metal blade 15 to rotate within the first ring 14 through the bearing 17 to control the air intake volume. This prevents the fixed air intake volume from causing different combustion states of different fuels, resulting in incomplete combustion and causing more exhaust pollution.

[0042] A fourth connecting block 18 is fixedly connected to the first hydraulic push rod 7, the second hydraulic push rod 8, and the third hydraulic push rod 9, and a pressure reducing plate 19 is fixedly connected to the fourth connecting block 18.

[0043] Specifically: First, the third hydraulic pusher 9 pushes the fourth connecting block 18 to move the pressure reducing plate 19 and the second ring 20. The second ring 20 moves the grate 21 into the first outer shell 4. Then, fuel is poured in. After combustion, an ash layer is formed at the bottom. Then, the second hydraulic pusher 8 and the first hydraulic pusher 7 indirectly push the grate 21 into the first outer shell 4 to form a coke combustion layer and a new fuel layer.

[0044] A second ring 20 is fixedly connected inside the pressure reducing plate 19, and the grate 21 is fixedly connected to the second ring 20.

[0045] Specifically: the pressure relief plate 19 is used to facilitate the separation of ash and fuel by inserting it into the fuel, thereby reducing propulsion resistance; the grate 21 is used to support the fuel layer.

[0046] Working principle: First, the third hydraulic pusher 9 pushes the fourth connecting block 18, which in turn moves the pressure reducing plate 19 and the second ring 20. The second ring 20 moves the grate 21 into the first outer shell 4, where fuel is poured in. After combustion, an ash layer is formed at the bottom. Then, the second hydraulic pusher 8 and the first hydraulic pusher 7 indirectly push the grate 21 into the first outer shell 4, forming a coke combustion layer and a new fuel layer. Then, the fourth hydraulic pusher 10 pushes the third connecting block 13, which in turn moves the first ring 14. The first ring 14 moves the metal blades 15. When the metal blades 15 reach the bottom of the first outer shell 4, the motor 16 drives the metal blades 15 through the bearing 17. The rotation within the first ring 14 controls the air intake, preventing incomplete combustion due to different fuel combustion states caused by a fixed air intake, which would lead to more exhaust pollution. The liquid is heated and evaporated into water vapor in the high-pressure conversion layer 12, and then rises to heat the second outer shell 5. After heating, it cools and falls back into liquid to form a cycle, thus heating the liquid inside the second outer shell 5. When it is necessary to clean the ash, the third hydraulic push rod 9 indirectly drives the grate 21 to recover, and the fourth hydraulic push rod 10 indirectly drives the metal blades 15 to recover. The bottom ash layer falls into the box 2 under the action of gravity. When the box 2 is full, the box 2 can be replaced to collect the ash again.

[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler comprising a base (1), characterized in that: The base (1) is provided with a first hydraulic push rod (7), the first hydraulic push rod (7) is provided with a second hydraulic push rod (8) below, the second hydraulic push rod (8) is provided with a third hydraulic push rod (9) below, the third hydraulic push rod (9) is provided with a fourth hydraulic push rod (10) below, the base (1) is provided with a metal blade (15), the metal blade (15) is fixedly connected with a motor (16), the metal blade (15) is fixedly connected with a bearing (17), the base (1) is provided with a pressure relief piece (19), the pressure relief piece (19) is provided with a grate (21) in it.

2. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler according to claim 1, characterized in that, The base (1) is provided with a box (2), and the base (1) is fixedly connected with a first connecting block (3).

3. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler according to claim 2, characterized in that, The first connecting block (3) is fixedly connected with a first shell (4), and the first shell (4) is slidably connected with a second shell (5) in it.

4. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler according to claim 1, characterized in that, The base (1) is fixedly connected with a second connecting block (6), and the first hydraulic push rod (7) is fixedly connected to the second connecting block (6).

5. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler according to claim 1, characterized in that, The second hydraulic push rod (8) is fixedly connected to the second connecting block (6), the third hydraulic push rod (9) is fixedly connected to the second connecting block (6), and the fourth hydraulic push rod (10) is fixedly connected to the second connecting block (6).

6. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler according to claim 3, characterized in that, The first shell (4) is provided with a groove (11) in it, and the second shell (5) is provided with a high-voltage conversion layer (12) in it.

7. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler according to claim 1, characterized in that, The fourth hydraulic push rod (10) is fixedly connected with a third connecting block (13), and the third connecting block (13) is fixedly connected with a first circular ring (14).

8. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler according to claim 1, characterized in that, The first hydraulic push rod (7), the second hydraulic push rod (8) and the third hydraulic push rod (9) are fixedly connected with a fourth connecting block (18), and the pressure relief piece (19) is fixedly connected to the fourth connecting block (18).

9. A large-scale, forced-combustion, phase-change heat-exchange hot-water boiler according to claim 1, characterized in that, The pressure relief piece (19) is fixedly connected with a second circular ring (20) in it, and the grate (21) is fixedly connected to the second circular ring (20).

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