Gas-fired boiler
By designing a flue gas emission structure in a gas boiler and using the smoke exhaust pipe and the flue gas box to recover the waste heat of the flue gas, the problems of waste of flue gas and safety hazards in the gas boiler are solved, and the efficiency and safety of the boiler are improved.
Patent Information
- Application Number
- CN202421028245.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Commonly, high-temperature flue gas generated by gas combustion is directly discharged during use, resulting in waste of heat and safety hazards.
A gas boiler was designed, including a flue gas emission structure. The flue gas emission structure includes a smoke exhaust pipe, a baffle, a flue gas box, a drain pipe, an air injection port, a defog plate and an exhaust pipe. The flue gas slowly passes through the smoke exhaust pipe. Flow and recover waste heat in the flue gas box, and then heat the internal water of the boiler to reduce the occurrence of safety accidents.
Through the recovery of flue gas waste heat, the efficiency of the gas boiler is improved, the risk of safety accidents is reduced, and the heating effect of the boiler is improved.
Smart Images
Figure CN222298168U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gas boilers, in particular to a gas boiler. Background Art
[0002] Gas boilers are electrical equipment that use gas as fuel to heat the boiler. They can provide users with heating, bathing and other functions. Since gas boilers are low-priced and easy to operate, they are used as common household appliances.
[0003] When a common gas boiler is in use, the gas injected into the gas supply pipe is ignited along the designated pipeline through the igniter, so that the pipeline heats the water in the boiler, thereby forming a heat exchange with the clean water flow pipeline, so as to achieve the effect of boiler water heating and heating. Common gas boilers have good combustion and heating effects when in use, but there are still some problems:
[0004] When common gas boilers are in use, a certain amount of high-temperature flue gas will be generated after the gas combustion. Direct emission will lead to heat waste and may also cause certain safety hazards. Utility Model Content
[0005] The utility model aims to provide a gas boiler to solve the defect of waste of flue gas heat resources in the existing gas boiler.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a gas boiler, comprising a base and a main frame, the top of the base is fixedly connected to the main frame, one end of the main frame is fixedly connected to a drain outlet, the upper parts of both sides of the main frame are fixedly connected to a flue gas discharge structure, the flue gas discharge structure comprises a smoke exhaust pipe, a baffle, a smoke box, a drain pipe, an air injection port, a defogger plate and an exhaust pipe, the smoke exhaust pipe is fixedly connected to the two ends of the combustion pipe, an igniter is fixedly connected to the middle position of one side of the main frame, one side of the top of the main frame is fixedly connected to a water pipe interface, the other side of the top of the main frame is fixedly connected to a steam discharge structure, the inside of the main frame is fixedly connected to the combustion pipe, the outer side of the combustion pipe is sleeved with a heat exchange pipe, and the outer side wall of the combustion pipe is fixedly connected to a support plate.
[0007] When in use, clean water is injected into the main frame through the drain outlet, and then the igniter is started and gas is introduced, so that the igniter sprays flames into the interior of the combustion tube and heats the clean water inside the main frame. Over time, the clean water inside the main frame gradually evaporates to form water vapor. At the same time, the user's water supply pipe is connected to the water pipe interface, so that the tap water in the water supply pipe flows along the heat exchange tube. At this time, the water vapor exchanges heat with the tap water flowing inside the heat exchange tube, thereby quickly heating up the tap water for user use.
[0008] Preferably, a baffle is fixedly connected to the inside of the smoke exhaust pipe, a smoke box is fixedly connected to the top of both sides of the main frame, an air injection port is opened on one side of the smoke box, a defogger plate is fixedly connected to the top of the inner wall of the smoke box, and an exhaust pipe is fixedly connected to the top of the smoke box. When the smoke enters the smoke box, the moisture in the smoke is blocked layer by layer by the defogger plate and can flow downward through the drain pipe, while the smoke is discharged outward through the exhaust pipe.
[0009] Preferably, the smoke exhaust pipe is connected to the smoke box through the air injection port, and the demister plates are distributed at equal intervals inside the smoke box to filter moisture in the smoke.
[0010] Preferably, a plurality of baffles are fixedly connected to the inner wall of the smoke exhaust pipe, and the plurality of baffles are staggeredly distributed inside the smoke exhaust pipe, so as to reduce the flow speed of smoke.
[0011] Preferably, the steam exhaust structure includes a steam exhaust pipe, a exhaust port, an internally threaded pipe, an adjusting screw, a pressure plate, a spring and a sealing plug. The steam exhaust pipe is fixedly connected to one side of the top of the main frame. The exhaust port is provided on the outer wall of the steam exhaust pipe. The top of the steam exhaust pipe is fixedly connected to the internally threaded pipe. The internal threads of the internally threaded pipe are connected to the adjusting screw. The bottom end of the adjusting screw is rotatably connected to a pressure plate. The bottom end of the pressure plate is fixedly connected to a spring. The bottom end of the spring is fixedly connected to a sealing plug. When the internal pressure of the main frame is too large, the sealing plug will be pushed upward in the reverse direction through the steam exhaust pipe, and finally part of the pressure will be discharged outward through the exhaust port.
[0012] Preferably, the steam exhaust pipe is communicated with the interior of the main frame, and the exhaust ports are distributed in a ring shape on the outer side wall of the steam exhaust pipe.
[0013] Preferably, the internal threaded tube and the adjusting screw are in a threaded connection structure, and the spring and the sealing plug are in an elastic connection structure, so that the internal pressure relief value of the main frame can be adjusted by rotating the adjusting screw.
[0014] The utility model provides a gas boiler, which has the advantages that: by providing a smoke exhaust structure, the remaining smoke from combustion inside the combustion tube flows along the smoke exhaust pipe into the smoke box, at which time the smoke slowly flows along the baffle plate inside the smoke exhaust pipe and uses the remaining heat to reheat the clean water inside the main frame to form waste heat recovery, thereby reducing the occurrence of safety accidents and improving the efficiency of the gas boiler. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0016] Figure 2It is a front view cross-sectional structural schematic diagram of the utility model;
[0017] Figure 3 It is a three-dimensional partial structural schematic diagram of the smoke exhaust structure of the utility model;
[0018] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a smoke exhaust structure of the utility model viewed from above;
[0019] Figure 5 It is a schematic diagram of a partial cross-sectional structure of a smoke exhaust structure of the utility model from a side view;
[0020] Figure 6 It is a schematic diagram of the front cross-sectional structure of the steam exhaust structure of the present utility model.
[0021] In the figure: 1. base; 2. main frame; 3. drain outlet; 4. flue gas discharge structure; 401. exhaust pipe; 402. baffle; 403. flue gas box; 404. drain pipe; 405. air injection port; 406. defog plate; 407. exhaust pipe; 5. igniter; 6. water pipe interface; 7. steam discharge structure; 701. steam discharge pipe; 702. discharge outlet; 703. internal threaded pipe; 704. adjusting screw; 705. pressure plate; 706. spring; 707. sealing plug; 8. combustion tube; 9. heat exchange tube; 10. support plate. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] See also Figure 1-Figure 6The utility model provides a gas boiler, including a base 1 and a main frame 2, the top of the base 1 is fixedly connected with the main frame 2, one end of the main frame 2 is fixedly connected with a drain port 3, an igniter 5 is fixedly connected at the middle position of one side of the main frame 2, one side of the top of the main frame 2 is fixedly connected with a water pipe interface 6, the inside of the main frame 2 is fixedly connected with a combustion tube 8, the outer side of the combustion tube 8 is sleeved with a heat exchange tube 9, the outer side wall of the combustion tube 8 is fixedly connected with a support plate 10, and the upper part of both sides of the main frame 2 is fixedly connected with a smoke exhaust structure 4, and the smoke exhaust structure 4 includes a smoke exhaust pipe 401, a baffle 402, a smoke box 403, a drain pipe 404, an air injection port 405, and a defogger plate 406. 6 and exhaust pipe 407, the exhaust pipe 401 is fixedly connected to the two ends of the combustion tube 8, the interior of the exhaust pipe 401 is fixedly connected with a baffle 402, the upper parts of both sides of the main frame 2 are fixedly connected with a smoke box 403, one side of the smoke box 403 is provided with an air injection port 405, the upper part of the inner wall of the smoke box 403 is fixedly connected with a defogger plate 406, the top of the smoke box 403 is fixedly connected with the exhaust pipe 407, the exhaust pipe 401 is communicated with the smoke box 403 through the air injection port 405, the defogger plates 406 are evenly spaced inside the smoke box 403, a number of baffles 402 are fixedly connected to the inner wall of the exhaust pipe 401, and a number of baffles 402 are staggeredly distributed inside the exhaust pipe 401.
[0024] Refer to the attached Figure 1 , Figure 2 , Figure 3 Figure 4 and Figure 5When the gas boiler is in use, clean water is injected into the main frame 2 through the drain port 3, and then the igniter 5 is started and gas is introduced, so that the igniter 5 sprays flames into the interior of the combustion tube 8 and heats the clean water inside the main frame 2. As time goes by, the clean water inside the main frame 2 gradually evaporates to form water vapor. At the same time, the user's water supply pipeline is connected to the water pipe interface 6, so that the tap water in the water supply pipeline flows along the heat exchange tube 9. At this time, the water vapor exchanges heat with the tap water flowing inside the heat exchange tube 9, thereby quickly heating the tap water for user use. In this process, the internal temperature of the combustion tube 8 is heated by the boiler due to the combustion of gas, and the combustion of gas will produce a certain amount of high-temperature flue gas, which will be directly discharged. This will cause the ambient temperature to rise and may also cause certain safety accidents. For this reason, the smoke exhaust pipe 401 is connected in reverse at both ends of the combustion tube 8, so that the remaining smoke from the combustion inside the combustion tube 8 flows along the smoke exhaust pipe 401 into the smoke box 403. At this time, the smoke slowly flows along the baffle 402 inside the smoke exhaust pipe 401, and the remaining heat is used to reheat the clean water inside the main frame 2 to form waste heat recovery, thereby greatly improving the heating effect of the clean water inside the main frame 2, and when the smoke enters the smoke box 403, the moisture in the smoke is blocked layer by layer by the demister plate 406, and can flow downward from the drain pipe 404, while the smoke is discharged outward through the exhaust pipe 407. At this time, the temperature of the smoke is greatly reduced after the waste heat recovery, thereby reducing the occurrence of safety accidents.
[0025] The other side of the top of the main frame 2 is fixedly connected with a steam exhaust structure 7, which includes a steam exhaust pipe 701, an exhaust port 702, an internally threaded pipe 703, an adjusting screw 704, a pressing plate 705, a spring 706 and a sealing plug 707. The steam exhaust pipe 701 is fixedly connected to one side of the top of the main frame 2, and the outer wall of the steam exhaust pipe 701 is provided with an exhaust port 702. The top of the steam exhaust pipe 701 is fixedly connected with an internally threaded pipe 703, and the inner wall of the internally threaded pipe 703 is provided with a steam exhaust pipe 701. The bottom end of the steam discharge pipe 701 is connected to the interior of the main frame 2, and the discharge port 702 is distributed in a ring shape on the outer wall of the steam discharge pipe 701. The internal threaded tube 703 and the adjusting screw 704 are in a threaded connection structure, and the spring 706 and the sealing plug 707 are in an elastic connection structure.
[0026] Refer to the attached Figure 1 and Figure 6When the gas boiler is in use, a large amount of water vapor is generated due to the combustion of gas inside the main frame 2, and the internal pressure of the main frame 2 is relatively high. In order to facilitate pressure relief and avoid major safety accidents caused by excessive pressure, a steam discharge pipe 701 is fixed on one side of the top of the main frame 2, and the pressure plate 705 is pushed by rotating the adjusting screw 704 to adjust the elastic force of the spring 706. When the internal pressure of the main frame 2 is too large, the sealing plug 707 will be pushed upward through the steam discharge pipe 701 in the opposite direction, and finally part of the pressure will be discharged outward from the discharge port 702. When the internal pressure of the main frame 2 reaches a certain value, the sealing plug 707 will move down again under the elastic force of the spring 706 and block the steam discharge pipe 701, so that the internal pressure of the main frame 2 is always maintained within a certain range.
[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A gas boiler, comprising a base (1) and a main frame (2); Features: The top of the base (1) is fixedly connected to a main frame (2); One end of the main frame (2) is fixedly connected to a drain port (3), and the upper sides of both sides of the main frame (2) are fixedly connected to a smoke exhaust structure (4), and the smoke exhaust structure (4) comprises a smoke exhaust pipe (401), a baffle (402), a smoke box (403), a drain pipe (404), an air injection port (405), a defogger plate (406) and an exhaust pipe (407). The smoke exhaust pipe (401) is fixedly connected to both ends of the combustion pipe (8), and an igniter (5) is fixedly connected to the middle position of one side of the main frame (2). One side of the top of the main frame (2) is fixedly connected to a water pipe interface (6), and the other side of the top of the main frame (2) is fixedly connected to a steam exhaust structure (7), and the inside of the main frame (2) is fixedly connected to the combustion pipe (8); The outer side of the combustion tube (8) is sleeved with a heat exchange tube (9), and the outer side wall of the combustion tube (8) is fixedly connected with a support plate (10).
2. A gas boiler according to claim 1, characterized in that: A baffle (402) is fixedly connected to the inside of the smoke exhaust pipe (401), a smoke box (403) is fixedly connected to the top of both sides of the main frame (2), a gas injection port (405) is opened on one side of the smoke box (403), a defogger plate (406) is fixedly connected to the top of the inner wall of the smoke box (403), and an exhaust pipe (407) is fixedly connected to the top of the smoke box (403).
3. A gas boiler according to claim 2, characterized in that: The smoke exhaust pipe (401) is connected to the smoke box (403) through the gas injection port (405), and the demister plates (406) are distributed at equal intervals inside the smoke box (403).
4. A gas boiler according to claim 2, characterized in that: A plurality of the baffles (402) are fixedly connected to the inner wall of the smoke exhaust pipe (401), and the plurality of the baffles (402) are distributed in a staggered manner inside the smoke exhaust pipe (401).
5. A gas boiler according to claim 1, characterized in that: The steam discharge structure (7) comprises a steam discharge pipe (701), a discharge port (702), an internally threaded pipe (703), an adjusting screw (704), a pressure plate (705), a spring (706) and a sealing plug (707); the steam discharge pipe (701) is fixedly connected to one side of the top end of the main frame (2); the outer wall of the steam discharge pipe (701) is provided with a discharge port (702); the top end of the steam discharge pipe (701) is fixedly connected to the internally threaded pipe (703); the internal thread of the internally threaded pipe (703) is connected to the adjusting screw (704); the bottom end of the adjusting screw (704) is rotatably connected to the pressure plate (705); the bottom end of the pressure plate (705) is fixedly connected to the spring (706); and the bottom end of the spring (706) is fixedly connected to the sealing plug (707).
6. A gas boiler according to claim 5, characterized in that: The steam exhaust pipe (701) is connected to the interior of the main frame (2), and the exhaust ports (702) are distributed in a ring shape on the outer wall of the steam exhaust pipe (701).
7. A gas boiler according to claim 5, characterized in that: The internal threaded tube (703) and the adjusting screw (704) are in a threaded connection structure, and the spring (706) and the sealing plug (707) are in an elastic connection structure.