Condensation gas premixing boiler
By setting up a gas filter box and heating coil structure in the condensing gas premix boiler, the problem of unused exhaust heat is solved, the recovery of exhaust heat and water preheating are achieved, and the energy utilization rate is improved.
Patent Information
- Application Number
- CN202421937465.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-08-12
AI Technical Summary
The exhaust heat in existing condensing gas premixed boilers has not been effectively recycled, resulting in waste of energy.
A structure including a filter box, a filter mesh plate, an activated carbon filter plate, a side-connected plate, a quick loading plate and a quick loading groove is designed to filter out exhaust gas impurities, and the water in the water tank is heated by heating coils to achieve waste heat recovery.
Effectively prevent exhaust gas impurities from entering the pipeline and prevent pollution. At the same time, the exhaust gas waste heat is recovered for heating water, and improve energy utilization.
Smart Images
Figure CN223090686U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of condensing gas premixed boilers, and particularly relates to a condensing gas premixed boiler. Background Technique
[0002] The condensing gas premixed boiler is a highly efficient and energy-saving heat energy device. Through advanced premixing technology and condensing principle, it can significantly improve the energy utilization efficiency, reduce energy consumption and pollutant emissions. However, in actual use, the inconvenient reuse of waste heat in the tail gas is a relatively prominent shortcoming. The waste of waste heat in the tail gas means the underutilization of energy. Although the condensing gas premixed boiler has indeed made remarkable progress in energy conservation, the failure to effectively recover the waste heat in the tail gas has led to a certain degree of energy loss. It should be noted that the tail gas generated during the combustion process contains quite a lot of heat. If this waste heat can be reasonably recovered and utilized, it will be able to provide more energy support for production and life. Taking industrial production as an example, the waste heat in the tail gas generated by a large number of condensing gas premixed boilers during operation, if not recovered, is like letting precious energy flow away in vain. This waste heat could have been used to preheat the water or air entering the boiler, thereby reducing the energy consumption required for initial heating. To solve this problem, we have developed a condensing gas premixed boiler. Content of the Utility Model
[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a condensing gas premixed boiler to solve the problems put forward in the above background technique.
[0004] The utility model is realized through the following technical solutions: A condensing gas premixed boiler, comprising: a working box, a condensing heat exchange furnace body and a premixing fan. The condensing heat exchange furnace body is installed on the left side inside the working box, and the premixing fan is installed above the condensing heat exchange furnace body. A gas inlet is provided on the front of the premixing fan, and an air inlet pipe is installed on its right side. A tail gas outlet pipe is installed below the right side of the condensing heat exchange furnace body, and a tail gas filter box is provided on the right side of the tail gas outlet pipe;
[0005] A guiding fan is provided on the right side of the tail gas filter box, a heating water tank is provided on the right side of the guiding fan, a heating coil made of stainless steel is installed below the inside of the heating water tank, and an exhaust pipe is installed on the right side of the front of the heating water tank;
[0006] Inside the exhaust gas filter box, a filter screen plate is installed on the left side, and an activated carbon filter plate is installed on the right side of the filter screen plate. On the left and right sides of the exhaust gas filter box, a side connecting plate is installed respectively. Below the two side connecting plates, a quick installation groove is opened respectively. In the two quick installation grooves, a quick installation plate is installed respectively. A docking hole is respectively opened through the middle of the two quick installation plates. The left quick installation plate is connected to the exhaust gas outlet pipe, and the right side of the right quick installation plate is connected to an air outlet pipe. Through holes are respectively opened through the middle of the left and right sides inside the exhaust gas filter box.
[0007] As a preferred embodiment, the air outlet of the premixing fan is connected to the inside of the condensation heat exchange furnace body, and two box doors are installed on the front of the exhaust gas filter box through hinges.
[0008] As a preferred embodiment, the positions of the docking holes are symmetrical to the positions of the through holes. The right end of the air outlet pipe is connected to the guiding fan, and the air outlet of the guiding fan is connected to the left end of the heating coil.
[0009] As a preferred embodiment, the exhaust pipe is internally communicated with the heating coil. A drain valve is installed in the middle below the back of the heating water tank, and a water vapor pipe is installed in the middle on the front side above the heating water tank.
[0010] As a preferred embodiment, a temperature display is installed on the drain valve. The temperature display is connected to the inside of the heating water tank through a temperature measuring probe, and a transparent water level plate is installed on the front of the heating water tank.
[0011] After adopting the above technical solution, the beneficial effects of the present utility model are:
[0012] 1. By setting the air filter box, filter screen plate, activated carbon filter plate, side connecting plate, quick installation plate and quick installation groove, it is possible to filter the impurities mixed in the exhaust gas after the exhaust gas is discharged, prevent them from entering the pipeline and causing pipeline blockage, and at the same time prevent the impurities in the exhaust gas from being discharged into the external environment and causing pollution.
[0013] 2. By setting the heating coil, exhaust pipe and heating water tank, it is possible to use the waste heat of the exhaust gas to heat the water inside the heating water tank through the heating coil. The heat energy that would originally be wasted in the exhaust gas can be reused, greatly improving the energy utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0015] Figure 1 This is a schematic diagram of the overall structure of a condensing gas premixed boiler of the present utility model.
[0016] Figure 2 This is a schematic diagram of a top-down cross-section of a heating water tank in a condensing gas premixed boiler of the present utility model.
[0017] Figure 3 This is a schematic diagram of an internal cross-section of an exhaust gas filter box in a condensing gas premixed boiler of the present utility model.
[0018] In the figure, 1 is a working box; 2 is a condensing heat exchange furnace body; 3 is a premixing fan; 4 is a gas inlet; 5 is an air inlet pipe; 6 is an exhaust gas outlet pipe; 7 is an exhaust gas filter box; 71 is a box door; 72 is a filter mesh plate; 73 is an activated carbon filter plate; 74 is a side connecting plate; 75 is a quick-installation plate; 76 is an air outlet pipe; 77 is a through hole; 78 is a quick-installation groove; 8 is a guiding fan; 9 is a heating water tank; 10 is a transparent water level plate; 11 is an exhaust pipe; 12 is a water vapor pipe; 13 is a heating coil. Specific embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1 to 3 , the present utility model provides a technical solution: a condensing gas premixed boiler, including: a working box 1, a condensing heat exchange furnace body 2, and a premixing fan 3. The condensing heat exchange furnace body 2 is installed on the left side inside the working box 1, the premixing fan 3 is installed above the condensing heat exchange furnace body 2, the gas inlet 4 is provided on the front of the premixing fan 3, the air inlet pipe 5 is installed on its right side, the exhaust gas outlet pipe 6 is installed below the right side of the condensing heat exchange furnace body 2, and the exhaust gas filter box 7 is provided on the right side of the exhaust gas outlet pipe 6;
[0021] The guiding fan 8 is provided on the right side of the exhaust gas filter box 7, the heating water tank 9 is provided on the right side of the guiding fan 8, the heating coil 13 made of stainless steel is installed below the inside of the heating water tank 9, and the exhaust pipe 11 is installed on the right side of the front of the heating water tank 9;
[0022] A filter screen plate 72 is installed on the left side of the exhaust filter box 7, and an activated carbon filter plate 73 is installed on the right side of the filter screen plate 72. A side connecting plate 74 is installed on the left and right sides of the exhaust filter box 7, and a quick-release groove 78 is opened under each of the two side connecting plates 74. A quick-release plate 75 is installed in each of the two quick-release grooves 78. A docking hole is opened in the middle of each of the two quick-release plates 75. The left quick-release plate 75 is connected to the exhaust outlet pipe 6, and the right side of the right quick-release plate 75 is connected to the outlet pipe 76. A through hole 77 is opened in the middle of the left and right sides of the exhaust filter box 7.
[0023] The air outlet of the premixing fan 3 is connected to the inside of the condensing heat exchange furnace body 2, and two box doors 71 are installed on the front side of the exhaust gas filter box 7 through hinges.
[0024] The position of the docking hole is symmetrical to the position of the through hole 77 . The right end of the air outlet pipe 76 is connected to the guide fan 8 , and the air outlet of the guide fan 8 is connected to the left end of the heating coil 13 .
[0025] The exhaust pipe 11 is connected to the interior of the heating coil 13 , a drain valve is installed in the middle of the lower back of the heating water tank 9 , and a steam pipe 12 is installed in the middle of the upper front side of the heating water tank 9 .
[0026] A temperature display is installed on the drain valve, and the temperature display is connected to the inside of the heating water tank 9 through a temperature measuring probe. A transparent water level plate 10 is installed on the front of the heating water tank 9. The temperature measuring probe can detect the temperature inside the heating water tank 9 and display the temperature value through the temperature display.
[0027] See also Figures 1 to 3, as the first embodiment of the present utility model: During use, gas and air are introduced into the premixing fan 3 through the gas inlet 4 and the tail gas outlet pipe 6. After being mixed by the premixing fan 3, they enter the condensing heat exchange furnace body 2 for combustion. The tail gas generated after combustion enters the tail gas filter box 7 through the tail gas outlet pipe 6. The guiding fan 8 can be started. The guiding fan 8 can extract air inside the tail gas filter box 7, so that the tail gas passes through the impurity filtering mesh plate 72 and the activated carbon filter plate 73. The impurity filtering mesh plate 72 filters out larger impurities mixed in the tail gas, and then the activated carbon filter plate 73 adsorbs and filters the remaining impurities in the tail gas. The filtered tail gas is purer, thus preventing the tail gas from entering the heating coil 13 and causing blockage. Under the action of the guiding fan 8, the filtered tail gas enters the heating coil 13 through the air outlet pipe 76, and at the same time, the waste heat in the tail gas can heat the heating coil 13 when passing through it. Water can be preheated in the heating water tank 9 through the water vapor pipe 12 in advance, and then the heating coil 13 can heat the added water. The water vapor generated during the heating process can be discharged through the water vapor pipe 12, and then the filtered tail gas can be discharged outwards through the exhaust pipe 11. When hot water needs to be discharged, it can be discharged through the drain valve. Through the above steps, the final effect can be that the heat energy that would originally be wasted in the tail gas can be reused, greatly improving the energy utilization rate.
[0028] Please refer to Figure 1 and Figure 3 , as the second embodiment of the present utility model: When the tail gas filter box 7 needs to be disassembled, the tail gas filter box 7 can be pulled upwards so that the two quick installation slots 78 on the left and right respectively disengage from the outside of the two quick installation plates 75 upwards, thereby quickly disassembling the tail gas filter box 7. After disassembly, the box door 71 can be opened to clean the impurity filtering mesh plate 72 and the activated carbon filter plate 73 inside it. At the same time, the inner walls of the tail gas outlet pipe 6 and the air outlet pipe 76 after disconnection can also be cleaned or repaired.
[0029] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A condensing gas premix boiler, comprising: A working box (1), a condensation heat exchange furnace body (2), and a premixing fan (3). Inside the left side of the working box (1), a condensation heat exchange furnace body (2) is installed. Above the condensation heat exchange furnace body (2), a premixing fan (3) is installed. On the front of the premixing fan (3), there is a gas inlet (4), and on its right side, an air inlet pipe (5) is installed. Below the right side of the condensation heat exchange furnace body (2), an exhaust gas outlet pipe (6) is installed. It is characterized in that: on the right side of the exhaust gas outlet pipe (6), there is an exhaust gas filter box (7); On the right side of the exhaust gas filter box (7), there is a guiding fan (8). On the right side of the guiding fan (8), there is a heating water tank (9). Inside the lower part of the heating water tank (9), a heating coil (13) made of stainless steel is installed. On the front right side of the heating water tank (9), an exhaust pipe (11) is installed; Inside the left side of the exhaust gas filter box (7), a filter mesh plate (72) is installed. On the right side of the filter mesh plate (72), an activated carbon filter plate (73) is installed. On the left and right sides of the exhaust gas filter box (7), a side connecting plate (74) is installed respectively. Below the two side connecting plates (74), a quick installation slot (78) is opened respectively. Inside the two quick installation slots (78), a quick installation plate (75) is installed respectively. A docking hole is respectively penetrated through the middle of the two quick installation plates (75). The left quick installation plate (75) is connected to the exhaust gas outlet pipe (6), and the right side of the right quick installation plate (75) is connected to an air outlet pipe (76). Inside the left and right sides of the exhaust gas filter box (7), a through hole (77) is respectively penetrated through the middle; 2. The condensing gas premixed boiler according to claim 1, characterized in that: The air outlet of the premixing fan (3) is connected to the inside of the condensation heat exchange furnace body (2). On the front of the exhaust gas filter box (7), two box doors (71) are installed through hinges; 3. The condensing gas premixed boiler according to claim 2, characterized in that: The position of the docking hole is symmetrical to the position of the through hole (77). The right end of the air outlet pipe (76) is connected to the guiding fan (8). The air outlet of the guiding fan (8) is connected to the left end of the heating coil (13); 4. The condensing gas premixed boiler according to claim 3, wherein: The exhaust pipe (11) is communicated with the inside of the heating coil (13). Below the middle of the back of the heating water tank (9), a drain valve is installed. In the middle of the front upper side of the heating water tank (9), a water vapor pipe (12) is installed; 5. The condensing gas premixed boiler according to claim 4, characterized in that: A temperature display is installed on the drain valve. The temperature display is connected to the inside of the heating water tank (9) through a temperature measuring probe. A transparent water level plate (10) is installed on the front of the heating water tank (9);