Steam boiler with eccentric furnace structure

By designing an eccentric furnace structure and optimizing the duct layout of the blower, the problem of insufficient utilization of heat from flue gas in existing steam boilers has been solved, achieving efficient heat recycling and heat exchange, and improving the overall thermal efficiency of the boiler.

CN224454574UActive Publication Date: 2026-07-03JIANGSU KENUO BOILER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU KENUO BOILER CO LTD
Filing Date
2025-06-06
Publication Date
2026-07-03

Smart Images

  • Figure CN224454574U_ABST
    Figure CN224454574U_ABST
Patent Text Reader

Abstract

The utility model provides a furnace eccentric structure steam boiler, including base, boiler body, escalator, install the electric control cabinet in the front of boiler body, install the fan in one side of boiler body, the inner layer of boiler body is the heat preservation layer, forms a sealed heating cavity in the heat preservation layer, just the fan one end is provided with the air pipe, the fan output end intercommunication heating cavity, one side of boiler body is equipped with at least one water pump, be connected with the water inlet pipe on water pump, and the water inlet pipe links together with heating cavity, one side of boiler body away from the fan is equipped with the smoke box, the energy saving ware is connected to the top of smoke box, the water outlet elbow pipe is equipped with on one side of water pump, and the water outlet elbow pipe links together with energy saving ware, just is equipped with check valve on the water outlet elbow pipe, be equipped with the water inlet elbow pipe on the smoke box, and the water inlet elbow pipe links together with heating cavity, and the heat medium passes the water outlet elbow pipe and enters energy saving ware and carries out secondary heat exchange with the smoke pipe, and the heat in the smoke pipe is fully utilized and enters heating cavity again through the water inlet elbow pipe, forms high efficiency circulation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of boilers, and more particularly to a steam boiler with an eccentric furnace structure. Background Technology

[0002] The primary function of a steam boiler is to heat water to boiling point by burning fuel, thereby generating high-temperature, high-pressure steam. This steam can be widely used in various fields such as industrial production, heating systems, and power generation. Specifically, in industrial production, steam can be used for processes such as heating, drying, and sterilization; in heating systems, steam provides a stable heat source to ensure comfortable indoor temperatures; and in power generation, steam drives a turbine to rotate, which in turn drives a generator to produce electricity. Therefore, steam boilers with a furnace structure play a crucial role in various fields, and their efficient and stable steam generation capabilities provide reliable support for various application scenarios.

[0003] A Chinese patent document CN202420848507.1 discloses an energy-saving steam boiler device, comprising an energy-saving steam boiler body. A flue pipe is fixedly connected to the top of the energy-saving steam boiler body near the right side. A heating chamber is fixedly installed on the inner bottom wall of the energy-saving steam boiler body. A worm-like tube is fixedly connected to the end of the connecting pipe away from the heating chamber. A water tank is located on the inner right side of the energy-saving steam boiler body near the bottom. A sealing and heat-insulating plate is fixedly installed on the inner wall of the water tank. A waste smoke filter chamber is located on the inner right side of the energy-saving steam boiler body near the top. Slide rails are fixedly installed on the front and rear end walls of the waste smoke filter chamber near the top and bottom. Activated carbon filter plates are installed inside the slide rails. A drive motor is fixedly installed on the top of the motor frame, and fan blades are fixedly connected to the output end of the drive motor.

[0004] However, the above-mentioned patent has certain defects in use. When the smoke is discharged through the flue pipe, some of the heat is not fully utilized, resulting in energy waste and the boiler's thermal efficiency cannot be fully utilized.

[0005] Therefore, an eccentric furnace structure steam boiler is proposed here to solve the above-mentioned problems. Utility Model Content

[0006] In order to overcome the shortcomings of existing technologies where boiler thermal efficiency is not fully utilized when flue gas discharges heat energy through the flue pipe, this utility model provides a steam boiler with an eccentric furnace structure.

[0007] This utility model is achieved using the following technical solution:

[0008] An eccentric steam boiler includes a base, a boiler body, a ladder, an electrical control cabinet installed on the front of the boiler body, and a fan installed on one side of the boiler body. The inner layer of the boiler body is an insulation layer, which forms a closed heating chamber. One end of the fan is equipped with an air duct, and the output end of the fan is connected to the heating chamber. At least one water pump is provided on one side of the boiler body, and the water pump is connected to an inlet pipe, which is connected to the heating chamber.

[0009] The boiler body has a smoke box on the side away from the fan. An energy-saving device is connected to the top of the smoke box. A water outlet bend is provided on the side of the water pump. The water outlet bend is connected to the energy-saving device and a check valve is provided on the water outlet bend. A water inlet bend is provided on the smoke box and is connected to the heating chamber.

[0010] As a preferred embodiment of this utility model, a water collection manifold is provided on the back of the boiler body, and a water level controller is provided on the water collection manifold. The water level controller is located inside the heating chamber, and a water level detector is connected to the water level controller.

[0011] As a preferred embodiment of this utility model, a connecting pipe is installed on the water collection manifold, a drain pipe is installed at the bottom of the water collection manifold, the other end of the connecting pipe is connected to the heating chamber, and a throttling valve is provided on the connecting pipe.

[0012] As a preferred embodiment of this utility model, a burner is provided on one side of the boiler body, and the output end of the burner passes through the boiler body and is provided with a furnace liner in the middle of the heating chamber.

[0013] As a preferred embodiment of this utility model, a bracket is provided on the outer wall of the boiler, and a pressure gauge and a pressure controller are installed on the bracket. The pressure gauge and pressure controller penetrate the boiler body to detect pressure changes in the heating chamber.

[0014] As a preferred embodiment of this utility model, a venting valve is provided on the top of the boiler body, and a safety valve is provided on the top of the boiler body next to the venting valve. The safety valve and the venting valve pass through the boiler body and are connected to the heating chamber.

[0015] As a preferred embodiment of this utility model, a sampling tube is provided on the outer wall of the boiler body, and a sampling valve is provided on the sampling tube. The sampling tube passes through the boiler body and is connected to the heating chamber.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. By optimizing the duct layout through the fan, the air volume utilization rate is improved, ensuring uniform temperature in the heating chamber. The heat medium in the heating chamber is rapidly heated by the burner and furnace. The heat medium enters the energy-saving device through the water outlet bend and undergoes secondary heat exchange with the flue. After the heat in the flue is fully utilized, it re-enters the heating chamber through the water inlet bend, forming an efficient circulation.

[0018] 2. The burner is located on the side of the heating chamber. The eccentric furnace creates an asymmetrical flue gas flow trajectory within the heating chamber, which enhances heat exchange efficiency and reduces heat loss. Attached Figure Description

[0019] Figure 1 This is a front view of the entire utility model;

[0020] Figure 2 This is an overall internal structural diagram of this utility model;

[0021] Figure 3 This is a side sectional view of the present invention;

[0022] In the diagram: 1. Boiler body; 11. Base; 12. Appendage; 13. Insulation layer; 14. Electrical control cabinet; 15. Fan; 16. Air duct; 2. Support; 21. Pressure gauge; 22. Pressure controller; 23. Vent valve; 24. Safety valve; 3. Burner; 31. Furnace chamber; 32. Heating chamber; 4. Smoke box; 41. Eco-friendly device; 42. Outlet elbow; 43. Check valve; 5. Inlet pipe; 51. Water pump; 52. Inlet elbow; 53. Sewage pipe; 6. Connecting pipe; 61. Throttling valve; 62. Water collection manifold; 63. Water level detector; 64. Water level controller; 7. Sampling pipe; 71. Sampling valve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figures 1-3The eccentric structure steam boiler includes a base 11, a boiler body 1, a ladder, an electrical control cabinet 14 installed on the front of the boiler body 1, and a fan 15 installed on one side of the boiler body 1. The inner layer of the boiler body 1 is an insulation layer 13, and a sealed heating chamber 32 is formed inside the insulation layer 13. One end of the fan 15 is provided with an air duct 16, and the output end of the fan 15 is connected to the heating chamber 32. At least one water pump 51 is provided on one side of the boiler body 1. The water pump 51 is connected to a water inlet pipe 5, and the water inlet pipe 5 is connected to the heating chamber 32.

[0026] A smoke box 4 is provided on the side of the boiler body 1 away from the fan 15. An energy-saving device 41 is connected to the top of the smoke box 4. A water outlet bend 42 is provided on one side of the water pump 51. The water outlet bend 42 is connected to the energy-saving device 41 and a check valve 43 is provided on the water outlet bend 42. A water inlet bend 52 is provided on the smoke box 4 and is connected to the heating chamber 32.

[0027] In this embodiment, a steam boiler is installed on top of the base 11. A ladder is installed on the front of the steam boiler, and an electrical control cabinet 14 is also installed on the front of the steam boiler for easy operation and monitoring. A fan 15 is installed on one side of the upper part of the boiler body 1. The inner wall of the boiler body 1 is an insulation layer 13, which forms a sealed heating chamber 32. One end of the fan 15 is provided with an air duct 16 to connect to external equipment, and the other end of the fan 15 passes through the boiler body 1 and communicates with the heating chamber 32 to ensure air circulation and improve thermal efficiency. At least one water pump 51 is located next to the boiler body 1. A water inlet pipe 5 is connected to pump 51. The water inlet pipe 5 passes through the boiler body 1 and extends into the heating chamber 32. A smoke box 4 is also provided on one side of the boiler pump body. The smoke box 4 is located away from the fan 15. An energy-saving device 41 is connected to the top of the smoke box 4. One of the water pumps 51 is also connected to a water outlet bend 42. The other end of the water outlet bend 42 extends to connect to the energy-saving device 41. A check valve 43 is provided on the water outlet bend 42 to prevent backflow. A water inlet bend 52 is provided on the smoke box 4. One end of the water inlet bend 52 is connected to the smoke box 4, and the other end extends to the heating chamber 32 to ensure smooth circulation of water and improve heat exchange efficiency.

[0028] Specifically, a water collection manifold 62 is provided on the back of the boiler body 1, and a water level controller 64 is provided on the water collection manifold 62. The water level controller 64 is located inside the heating chamber 32, and a water level detector 63 is connected to the water level controller 64.

[0029] In this embodiment, a water collection manifold 62 is also provided on the back of the boiler body 1. The water collection manifold 62 is used to collect and distribute circulating water. A water level controller 64 is provided on the water collection manifold 62, and the water temperature controller passes through the boiler body 1 and is located in the heating chamber 32. A water level detector 63 is also connected to the water level controller 64. The water level detector 63 is used to detect the water level change in the heating chamber 32 and feed it back to the electrical control cabinet 14 in real time.

[0030] Specifically, a connecting pipe 6 is installed on the water collection manifold 62, a drain pipe 53 is installed at the bottom of the water collection manifold 62, the other end of the connecting pipe 6 is connected to the heating chamber 32, and a throttling valve 61 is provided on the connecting pipe 6.

[0031] In this embodiment, a connecting pipe 6 is also provided on the water collection manifold 62, and a drain pipe 53 is also installed at the bottom of the water collection manifold 62. One end of the connecting pipe 6 is connected to the water collection manifold 62, and the other end extends through the boiler body 1 into the heating chamber 32. When the water level gauge detector detects that the water level is lower than the set value, the connecting pipe 6 automatically replenishes water, and the drain pipe 53 periodically discharges impurities to ensure the purity of the water.

[0032] Specifically, a burner 3 is provided on one side of the boiler body 1, and a furnace liner 31 is provided in the middle of the heating chamber 32 through the output end of the burner 3.

[0033] In this embodiment, a burner 3 is provided on one side of the boiler body 1. The burner 3 is located below the fan 15. The burner 3 is not located directly opposite the fan 15, but is slightly offset to enhance heat exchange efficiency and reduce heat loss. The output end of the burner 3 is provided with a furnace liner 31 through the side wall of the boiler body 1. The furnace liner 31 is located in the heating chamber 32 and is used to heat the heat medium.

[0034] Specifically, a support 2 is provided on the outer wall of the boiler, and a pressure gauge 21 and a pressure controller 22 are installed on the support 2. The pressure gauge 21 and the pressure controller 22 penetrate the boiler body 1 to detect pressure changes in the heating chamber 32.

[0035] In this embodiment, a bracket 2 is provided on the outer wall of the boiler body 1. A pressure gauge 21 and a pressure controller 22 are installed on the bracket 2. The pressure gauge 21 and the pressure controller 22 are used to monitor the pressure of the heating chamber 32 inside the boiler in real time to ensure safe operation. When the pressure exceeds a set threshold, the pressure controller 22 automatically starts to release pressure.

[0036] Specifically, a venting valve 23 is provided on the top of the boiler body 1, and a safety valve 24 is provided on the top of the boiler body 1 next to the venting valve 23. The safety valve 24 and the venting valve 23 pass through the boiler body 1 and are connected to the heating chamber 32.

[0037] In this embodiment, the top of the boiler body 1 is provided with a vent valve 23 and a safety valve 24. The safety valve 24 and the vent valve 23 pass through the boiler body 1 and are connected to the heating chamber 32. The vent valve 23 is used to discharge excess gas, while the safety valve 24 automatically opens when the pressure is abnormal.

[0038] Specifically, a sampling tube 7 is provided on the outer wall of the boiler body 1, and a sampling valve 71 is provided on the sampling tube 7. The sampling tube 7 passes through the boiler body 1 and is connected to the heating chamber 32.

[0039] In this embodiment, a sampling tube 7 is provided on the outer wall of the boiler body 1. The end of the sampling tube 7 extends through the boiler body 1 into the heating chamber 32. A sampling valve 71 is provided on the sampling tube 7 to control its opening and closing. The sampling tube 7 is used to periodically sample and test the water quality.

[0040] The principle of this utility model is as follows: When the eccentric structure steam boiler with furnace 31 is running, the blower 15 sends air into the heating chamber 32 through the air duct 16, the burner 3 drives the furnace 31 to burn, the water pump 51 injects water into the heating chamber 32 through the water inlet pipe 5, the high temperature flue gas enters the economizer 41 through the smoke box 4, and transfers heat to the heat medium in the water outlet bend 42. After the smoke box 4 and the economizer 41 work together, the gas returns to the heating chamber 32 through the water inlet bend 52, realizing heat recovery and utilization. The water level detector 63 and the water level controller 64 on the water collection manifold 62 monitor the water level in real time. The connecting pipe 6 can automatically replenish water, the drain pipe 53 discharges sewage regularly, the pressure gauge 21 and the pressure controller 22 work together with the safety valve 24 and the vent valve 23 to monitor and control the pressure of the heating chamber 32. In addition, the sampling pipe 7 is connected to the heating chamber 32 to facilitate regular sampling and testing of water quality, ensuring the safe and stable operation of the boiler.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. An eccentric steam boiler, comprising a base (11), a boiler body (1), a ladder, an electrical control cabinet (14) installed on the front of the boiler body (1), and a blower (15) installed on one side of the boiler body (1), characterized in that: The inner layer of the boiler body (1) is an insulation layer (13), and a closed heating chamber (32) is formed inside the insulation layer (13). A duct (16) is provided at one end of the fan (15), and the output end of the fan (15) is connected to the heating chamber (32). At least one water pump (51) is provided on one side of the boiler body (1), and a water inlet pipe (5) is connected to the water pump (51). The water inlet pipe (5) is connected to the heating chamber (32). A smoke box (4) is provided on the side of the boiler body (1) away from the fan (15). An energy-saving device (41) is connected to the top of the smoke box (4). A water outlet bend (42) is provided on one side of the water pump (51). The water outlet bend (42) is connected to the energy-saving device (41), and a check valve (43) is provided on the water outlet bend (42). A water inlet bend (52) is provided on the smoke box (4). The water inlet bend (52) is connected to the heating chamber (32).

2. The furnace off-centre configuration steam boiler according to claim 1, characterised in that: A water collection manifold (62) is provided on the back of the boiler body (1). A water level controller (64) is provided on the water collection manifold (62). The water level controller (64) is located inside the heating chamber (32). A water level detector (63) is connected to the water level controller (64).

3. The furnace eccentricity arrangement of a steam boiler according to claim 2, characterized in that: A connecting pipe (6) is installed on the water collection manifold (62), and a drain pipe (53) is installed at the bottom of the water collection manifold (62). The other end of the connecting pipe (6) is connected to the heating chamber (32), and a throttle valve (61) is provided on the connecting pipe (6).

4. The furnace eccentricity arrangement of a steam boiler according to claim 3, characterized in that: A burner (3) is provided on one side of the boiler body (1), and the output end of the burner (3) passes through the boiler body (1) and is located in the middle of the heating chamber (32) with a furnace liner (31).

5. The furnace eccentricity arrangement of a steam boiler according to claim 4, characterized in that: A bracket (2) is provided on the outer wall of the boiler. A pressure gauge (21) and a pressure controller (22) are installed on the bracket (2). The pressure gauge (21) and the pressure controller (22) penetrate the boiler body (1) to detect pressure changes in the heating chamber (32).

6. The furnace eccentricity arrangement of a steam boiler according to claim 5, characterized in that: A vent valve (23) is provided on the top of the boiler body (1), and a safety valve (24) is provided on the top of the boiler body (1) next to the vent valve (23). The safety valve (24) and the vent valve (23) pass through the boiler body (1) and are connected to the heating chamber (32).

7. The furnace eccentricity configuration steam boiler according to claim 1, characterized in that: A sampling tube (7) is provided on the outer wall of the boiler body (1), and a sampling valve (71) is provided on the sampling tube (7). The sampling tube (7) passes through the boiler body (1) and is connected to the heating chamber (32).