Fuel oil gas steam boiler

Abstract

The utility model discloses an oil-gas-fired steam boiler which comprises a boiler body and a material conveying pipe, a heat conducting plate is installed in the boiler body, a plurality of oil-gas-fired dual-purpose combustors are installed on the bottom face in the boiler body, branch pipes are installed between the material conveying pipe and the oil-gas-fired dual-purpose combustors, and the branch pipes are connected with the heat conducting plate. A preheating water tank is installed on the upper portion of the furnace body, a water inlet pipe fixedly penetrates through the upper portion of the preheating water tank, a water guide pipe penetrates through the portion between the furnace body and the preheating water tank, and a water outlet pipe, an air outlet pipe, an air blower and a first three-way pipe fixedly penetrate through the outer wall of the furnace body. And a second three-way pipe fixedly penetrates through the interior of the preheating water tank. The oil-gas-fired steam boiler has the advantages that the first three-way pipe and the second three-way pipe are adopted, through the arrangement of the first three-way pipe and the second three-way pipe, the exhaust fan structure can be replaced and overhauled without stopping combustion work, and the working efficiency of the oil-gas-fired steam boiler is improved.

Description

Technical Field

[0001] This utility model relates to the field of steam boiler technology, and more specifically, to an oil-fired steam boiler. Background Technology

[0002] A steam boiler is an industrial boiler that heats water to certain parameters and produces high-temperature steam. It is widely used in thermal power plants, ships, locomotives, and industrial and mining enterprises. Oil and gas steam boilers are a type of steam boiler that uses gasoline and natural gas as fuel. In practice, they have the advantages of simple operation, stable structure, and good performance.

[0003] The prior art discloses an oil / gas steam boiler with application number CN202320409112.7. This utility model requires the use of an exhaust fan to transport flue gas. When the exhaust fan is damaged, it will affect the transport of flue gas. At this time, the combustion work needs to be stopped before the exhaust fan can be replaced or repaired. This operation method will affect the working efficiency of this utility model. At the same time, in order to ensure complete combustion of fuel, a blower is needed to transport air into the furnace body, but there is no cleaning structure. When the filter structure of the blower is blocked by impurities, it will affect the continuous transport of air and reduce the practicality of this utility model.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an oil / gas steam boiler that allows for the replacement and maintenance of the exhaust fan structure without stopping combustion, and features a cleaning structure to prevent impurities from clogging the filter screen of the blower structure, thereby solving the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the advantages of allowing for the replacement and maintenance of the exhaust fan structure without stopping combustion, and having a cleaning structure to prevent impurities from clogging the blower's filter, the specific technical solution adopted by this utility model is as follows:

[0009] An oil / gas-fired steam boiler includes a furnace body and a feed pipe. A heat-conducting plate is installed inside the furnace body. Multiple sets of dual-fuel (oil / gas) burners are installed on the bottom surface of the furnace body. Branch pipes are installed between the feed pipe and each set of dual-fuel burners. One-way valves are installed on the side walls of each set of branch pipes. A preheating water tank is installed at the top of the furnace body, and an inlet pipe is fixedly inserted through the upper part of the preheating water tank. A guide pipe runs between the furnace body and the preheating water tank. An outlet pipe, a gas outlet pipe, a blower, and a first tee pipe are fixedly inserted through the outer wall of the furnace body. A second tee pipe is fixedly inserted inside the preheating water tank. Two sets of exhaust fans are installed between the first and second tee pipes via a flange. A control panel, a mounting plate, mounting pipes, and a right-angle bracket are installed on the outer wall of the furnace body. A filter screen is installed inside the mounting pipe. A mounting box is fixedly inserted through the side wall of the right-angle bracket. A shaft tube passes through the filter screen and the mounting box via a bearing. Two sets of water storage tanks are installed on the end face of the mounting plate, and multiple sets of heat dissipation fins are installed on the end face of each set of water storage tanks. A first on / off valve is provided on the side wall of each end of the first three-way pipe, and a second on / off valve is provided on the side wall of each end of the second three-way pipe. A drain pipe is fixedly inserted through the upper part of each set of water storage tanks. Two sets of pumps are installed on the upper part of each set of water storage tanks, and a pumping pipe is snapped into the input end of each set of pumps. One end of each pumping pipe is inserted into the interior of the two sets of water storage tanks. A drain pipe is snapped into the output end of each set of pumps, and one end of each drain pipe is inserted into the interior of the preheating water tank.

[0010] Furthermore, an air pump is fixedly inserted through the other side of the mounting box, and a connecting pipe is snapped into the output end of the air pump. One end of the connecting pipe is connected to the shaft tube through a bearing. Two sets of jet pipes are fixedly inserted through the side wall of the shaft tube, and pressure valves are provided on the side walls of both sets of jet pipes. A drive motor is installed on one side of the mounting box, and a main gear is sleeved on the output end of the drive motor. A driven gear is sleeved on the side wall of the shaft tube. The air pump and the drive motor are electrically connected to the control panel through wires.

[0011] Furthermore, the main gear and the driven gear mesh with each other.

[0012] Furthermore, one end of the shaft tube is a sealed structure.

[0013] Furthermore, the control panel is electrically connected via wires to multiple sets of the dual-fuel (oil and gas) burners, two sets of the exhaust fans, blowers, and two sets of the pumps.

[0014] Furthermore, control valves are provided on the side walls of the water pipe, water outlet pipe, and air outlet pipe.

[0015] Furthermore, a support frame is installed at the lower part of the furnace body.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides an oil / gas steam boiler, which has the following advantages:

[0018] (1) This utility model adopts a first three-way pipe and a second three-way pipe. In actual use of the oil-gas steam boiler, fuel can be transported to multiple sets of oil-gas dual-purpose burners through the feed pipe and multiple sets of branch pipes. Using the control panel, the multiple sets of oil-gas dual-purpose burners can be operated. The multiple sets of oil-gas dual-purpose burners can burn the fuel. The open flame can heat the liquid inside the furnace body through the heat conduction plate. Steam can be discharged through the gas outlet pipe. Using the control panel, two sets of exhaust fans and blowers can be operated. The blowers can transport air into the furnace body. The two sets of exhaust fans can draw flue gas into the interior of the second three-way pipe through the first three-way pipe. During this process, using the principle of heat transfer, the flue gas can transfer heat to the liquid inside the preheating water tank through the second three-way pipe. When one set of exhaust fans stops working, the other set on the same side is closed. The first on / off valve and a set of second on / off valves on the same side, via the control panel, enable the pumps on the same side to operate. Room temperature water can enter the water storage tank on the same side through a set of drain pipes. Utilizing the principle of heat transfer, the heat from the exhaust fans on the same side can be transferred to the water in the water storage tank through multiple sets of heat dissipation fins on the same side. This portion of water can then enter the preheating water tank through a set of suction pipes and a set of drain pipes on the same side. After the exhaust fans on the same side have cooled down, they can be disassembled, replaced, and repaired. Simultaneously, another set of exhaust fans continues to exhaust smoke. Repeating the above operations allows for alternating maintenance of the two sets of exhaust fans. Through the first and second tee pipes, the exhaust fan structure can be replaced and repaired without stopping combustion, improving the working efficiency of the oil / gas steam boiler.

[0019] (2) This utility model adopts an installation pipe, a filter screen and a shaft tube. According to the above operation, the blower can deliver air into the furnace body. During this process, impurities in the air will be intercepted by the filter screen. Using the control panel, the air pump and drive motor are made to work. The air pump can fill the shaft tube with air through the connecting pipe. The air is then ejected through two sets of jet pipes. At the same time, the output end of the drive motor can drive the main gear to rotate. Since the main gear and the driven gear mesh with each other, the rotating main gear can drive the driven gear to rotate. The rotating driven gear can drive the two sets of jet pipes to rotate through the shaft tube. By rotating the air inside the two sets of jet pipes, the impurities adsorbed on the surface of the filter screen can be blown off. Through the installation pipe, filter screen and shaft tube, a cleaning structure is provided, which can prevent impurities from clogging the filter screen of the blower structure and improve the practicality of the oil and gas steam boiler. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of an oil / gas steam boiler proposed in this utility model;

[0022] Figure 2 This is a perspective view of the mounting plate and water storage tank proposed in this utility model;

[0023] Figure 3 This utility model proposes Figure 1 Enlarged view of A in the middle;

[0024] Figure 4 This utility model proposes Figure 1 A magnified view of B in the middle.

[0025] In the picture:

[0026] 1. Furnace body; 2. Feed pipe; 3. Heat-conducting plate; 4. Oil / gas dual-fuel burner; 5. Branch pipe; 6. Check valve; 7. Preheating water tank; 8. Water guide pipe; 9. Control valve; 10. Water inlet pipe; 11. First tee pipe; 12. Exhaust fan; 13. Second tee pipe; 14. Mounting plate; 15. Water storage tank; 16. Blower; 17. Mounting pipe; 18. Right-angle bracket; 19. Filter screen; 20. Mounting box; 21. Shaft tube; 22. Heat dissipation fins; 23. Drain pipe; 24. Pump; 25. Extraction pipe; 26. Drain pipe; 27. First on / off valve; 28. Second on / off valve; 29. ​​Air pump; 30. Connecting pipe; 31. Drive motor; 32. Main gear; 33. Driven gear; 34. Jet pipe. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, an oil-fired steam boiler is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-4As shown, an oil / gas steam boiler according to an embodiment of the present invention includes a boiler body 1 and a feed pipe 2. A heat-conducting plate 3 is installed inside the boiler body 1. Multiple sets of dual-purpose oil / gas burners 4 are installed on the bottom surface of the boiler body 1. Branch pipes 5 are installed between the feed pipe 2 and the multiple sets of dual-purpose oil / gas burners 4. One-way valves 6 are installed on the side walls of the multiple sets of branch pipes 5. A preheating water tank 7 is installed on the upper part of the boiler body 1, and an inlet pipe 10 is fixedly inserted through the upper part of the preheating water tank 7. A water pipe 8 runs through the hot water tanks 7. A water outlet pipe, a gas outlet pipe, a blower 16, and a first tee pipe 11 are fixedly connected through the outer wall of the furnace body 1. A second tee pipe 13 is fixedly connected through the inside of the preheating water tanks 7. Two sets of exhaust fans 12 are installed between the first tee pipe 11 and the second tee pipe 13 via a flange. A control panel, a mounting plate 14, a mounting pipe 17, and a right-angle bracket 18 are installed on the outer wall of the furnace body 1. A filter screen 19 is installed inside the mounting pipe 17. The side wall of the right-angle bracket 18... A mounting box 20 is fixedly inserted through the filter screen 19, and a shaft tube 21 passes through the mounting box 20 via a bearing. Two sets of water storage tanks 15 are installed on the end face of the mounting plate 14, and multiple sets of heat dissipation fins 22 are installed on the end face of each set of water storage tanks 15. First on / off valves 27 are provided on both ends of the first three-way pipe 11, and second on / off valves 28 are provided on both ends of the second three-way pipe 13. Drain pipes 23 are fixedly inserted through the upper part of each set of water storage tanks 15. Each unit is equipped with two sets of suction pumps 24, and the input ends of the two sets of suction pumps 24 are connected to suction pipes 25. One end of each set of suction pipes 25 is inserted into the interior of the two sets of water storage tanks 15. The output ends of the two sets of suction pumps 24 are connected to drain pipes 26, and one end of each set of drain pipes 26 is inserted into the interior of the preheating water tank 7. Through the first tee pipe 11 and the second tee pipe 13, the structure of the exhaust fan can be replaced and maintained without stopping the combustion operation, which improves the working efficiency of the oil and gas steam boiler.

[0030] In one embodiment, an air pump 29 is fixedly inserted through the other side of the mounting box 20, and a connecting pipe 30 is snapped onto the output end of the air pump 29. One end of the connecting pipe 30 is connected to the shaft tube 21 through a bearing. Two sets of jet pipes 34 are fixedly inserted through the side wall of the shaft tube 21, and pressure valves are provided on the side walls of both sets of jet pipes 34. A drive motor 31 is installed on one side of the mounting box 20, and a main gear 32 is sleeved on the output end of the drive motor 31. A driven gear 33 is sleeved on the side wall of the shaft tube 21. The air pump 29 and the drive motor 31 are electrically connected to the control panel through wires. Through the mounting pipe 17, the filter screen 19, and the shaft tube 21, a cleaning structure is provided, which can prevent impurities from clogging the filter screen of the blower structure and improve the practicality of the oil and gas steam boiler.

[0031] In one embodiment, the main gear 32 and the driven gear 33 mesh with each other, ensuring that the main gear 32 can drive the driven gear 33 to rotate.

[0032] In one embodiment, one end of the shaft tube 21 is a sealed structure.

[0033] In one embodiment, the control panel is electrically connected to multiple sets of dual-purpose oil and gas burners 4, two sets of exhaust fans 12, blowers 16 and two sets of pumps 24 via wires. The control circuit of the control panel can be implemented by simple programming by those skilled in the art and is common knowledge in the field. It is only used and not modified, so the control method and circuit connection will not be described in detail.

[0034] In one embodiment, control valves 9 are provided on the side walls of the water pipe 8, the water outlet pipe, and the air outlet pipe. The three sets of control valves 9 serve to open and close the water pipe 8, the water outlet pipe, and the air outlet pipe.

[0035] In one embodiment, a support frame is installed at the lower part of the furnace body 1.

[0036] Working principle:

[0037] In actual use of the oil / gas steam boiler, fuel can be transported to multiple sets of dual-purpose oil / gas burners 4 via the feed pipe 2 and multiple sets of branch pipes 5. Using the control panel, the multiple sets of dual-purpose oil / gas burners 4 are activated, allowing the fuel to burn. The open flame heats the liquid inside the furnace body 1 via the heat-conducting plate 3, and steam is discharged through the exhaust pipe. Using the control panel, two sets of exhaust fans 12 and blowers 16 are activated. Blowers 16 deliver air into the furnace body 1, and exhaust fans 12 draw flue gas into the interior of the second three-way pipe 13 through the first three-way pipe 11. During this process, the flue gas... Heat can be transferred to the water inside the preheating tank 7 through the second three-way pipe 13. When a set of exhaust fans 12 stops working, the first on / off valve 27 and the second on / off valve 28 on the same side are closed. Using the control panel, the pump 24 on the same side is activated. Room temperature water can enter the interior of the storage tank 15 on the same side through the drain pipe 23 on the same side. Utilizing the principle of heat transfer, the heat from the exhaust fans 12 on the same side can be transferred to the water inside the storage tank 15 on the same side through multiple sets of heat dissipation fins 22 on the same side. This portion of water can enter the interior of the preheating tank 7 through the suction pipe 25 and the drain pipe 26 on the same side. When the exhaust fans 12 on the same side stop working, the first on / off valve 27 and the second on / off valve 28 on the same side are closed. Using the control panel, the pump 24 on the same side is activated. After the cooling of the blower 12 is complete, it can be disassembled, replaced, and repaired. Simultaneously, another set of exhaust fans 12 continues to exhaust smoke. Repeating the above operations allows for alternating maintenance of the two sets of exhaust fans 12. Through the first three-way pipe 11 and the second three-way pipe 13, the exhaust fan structure can be replaced and repaired without stopping combustion, improving the working efficiency of the oil / gas steam boiler. Furthermore, as can be seen from the above operations, the blower 16 can deliver air into the furnace body 1. During this process, impurities in the air are intercepted by the filter screen 19. Using the control panel, the air pump 29 and drive motor 31 are activated. The air pump 29 can charge air through the connecting pipe 30. Inside the shaft tube 21, air is ejected through two sets of jet pipes 34. At the same time, the output end of the drive motor 31 can drive the main gear 32 to rotate. Since the main gear 32 and the driven gear 33 mesh with each other, the rotating main gear 32 can drive the driven gear 33 to rotate. The rotating driven gear 33 can drive the two sets of jet pipes 34 to rotate through the shaft tube 21. By rotating the air inside the two sets of jet pipes 34, the impurities adsorbed on the surface of the filter screen 19 can be blown off. Through the installation pipe 17, the filter screen 19 and the shaft tube 21, a cleaning structure is provided, which can prevent impurities from clogging the filter screen of the blower structure and improve the practicality of the oil and gas steam boiler.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fuel gas steam boiler, characterized in that, The utility model provides a kind of heating furnace, including furnace body (1) and feed pipe (2), the inside of furnace body (1) is equipped with heat conduction plate (3), the inside bottom surface of furnace body (1) is equipped with multiple groups of oil gas dual-purpose burner (4), branch pipe (5) is installed between feed pipe (2) and multiple groups of oil gas dual-purpose burner (4), the side wall of multiple groups of branch pipe (5) is provided with one-way valve (6), the upper portion of furnace body (1) is equipped with preheating water tank (7), and the upper portion of preheating water tank (7) is fixedly penetrated with water inlet pipe (10), water guide pipe (8) is penetrated between furnace body (1) and preheating water tank (7), the outer wall of furnace body (1) is fixedly penetrated with water outlet pipe, gas outlet pipe, air blower (16) and first tee pipe (11), the inside of preheating water tank (7) is fixedly penetrated with second tee pipe (13), two groups of air extractor (12) are installed between first tee pipe (11) and second tee pipe (13) by flange, the outer wall of furnace body (1) is equipped with control panel, mounting plate (14), mounting pipe (17) and right-angle frame (18), the inside of mounting pipe (17) is equipped with filter screen (19), the side wall of right-angle frame (18) is fixedly penetrated with mounting box (20), shaft pipe (21) is penetrated between filter screen (19) and mounting box (20) by bearing, the end surface of mounting plate (14) is equipped with two groups of water storage tank (15), and the end surface of two groups of water storage tank (15) is equipped with multiple groups of radiating fins (22), the side wall of both ends of first tee pipe (11) is provided with first open-close valve (27), the side wall of both ends of second tee pipe (13) is provided with second open-close valve (28), the upper portion of two groups of water storage tank (15) is fixedly penetrated with drain pipe (23), the upper portion of two groups of water storage tank (15) is equipped with two groups of pump (24), and the input end of two groups of pump (24) is clamped with pump (25), and one end of two groups of pump (25) is inserted into the inside of two groups of water storage tank (15) respectively, the output end of two groups of pump (24) is clamped with drain pipe (26), and one end of two groups of drain pipe (26) is inserted into the inside of preheating water tank (7).

2. A fuel gas and steam boiler according to claim 1, characterised in that The other side of mounting box (20) is fixedly penetrated with air pump (29), and the output end of air pump (29) is clamped with connecting pipe (30), and one end of connecting pipe (30) is connected with shaft pipe (21) by bearing, the side wall of shaft pipe (21) is fixedly penetrated with two groups of air jet pipe (34), and the side wall of two groups of air jet pipe (34) is provided with pressure valve, one side of mounting box (20) is equipped with driving motor (31), and the output end of driving motor (31) is sleeved with main gear (32), the side wall of shaft pipe (21) is sleeved with driven gear (33), air pump (29) and driving motor (31) are electrically connected with control panel by wire.

3. A fuel gas and steam boiler according to claim 2, characterised in that The main gear (32) and driven gear (33) are engaged with each other.

4. A fuel gas and steam boiler according to claim 1, characterized in that One end of the shaft pipe (21) is a sealed structure.

5. A fuel gas and steam boiler according to claim 1, characterized in that The control panel is electrically connected with the groups of fuel gas dual-purpose burners (4), the groups of air exhaust fans (12), the air blower (16) and the groups of pump (24) through wires.

6. A fuel gas and steam boiler according to claim 1, characterized in that The side walls of the water guide pipe (8), the water outlet pipe and the gas outlet pipe are provided with control valves (9).

7. A fuel gas and steam boiler according to claim 1, characterized in that The lower part of the furnace body (1) is provided with a support frame.

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