Mechanical smoke exhaust device of gas-fired boiler
By designing smoke pipes one and two, defog degasser, filter and steam valve in gas boilers, the scale and white mist problems are solved, the boiler thermal efficiency and environmental protection are improved, and energy consumption and pollution are reduced.
Patent Information
- Application Number
- CN202323392758.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-13
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2033-12-13
AI Technical Summary
Gas boilers are prone to scale and rust problems during long-term operation, resulting in reduced heat exchange effect and reduced heat transfer effect, and may cause water-cooled wall pipe bursting, affecting the safe operation of the boiler. At the same time, there is white mist during discharge and the removal of scale inside the boiler. problem.
Design a mechanical smoke exhaust device for gas boilers, reduce the smoke residence time through smoke pipe one and smoke pipe two, drive the defogger to spray the flue gas liquefaction, filter absorb particulate matter, steam valve plus condenser to recover condensate, boiler internal supply Add alkali to water to descaling, avoid fuel consumption and improve energy utilization.
It improves the thermal efficiency of the boiler, reduces indoor temperature, improves staff comfort, realizes smoke purification, protects the environment, reduces energy consumption and pollutant emissions, and ensures that the heat transfer effect is not affected.
Smart Images
Figure CN222317029U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of environmental protection equipment, in particular to a mechanical smoke exhaust device for a gas boiler. Background Art
[0002] As the name implies, a gas boiler refers to a boiler that uses gas as fuel. After long-term operation, the boiler will inevitably have scale and rust problems. The main reason for the formation of scale in the boiler is that the feed water contains hard substances. After continuous evaporation and concentration under high temperature and high pressure, a series of physical and chemical reactions occur in the furnace, and finally hard and dense scale is formed on the heating surface, resulting in reduced heat exchange effect. Due to the corrosion factor under the scale, the heat absorption of the boiler water-cooled hearth is reduced, and the outlet temperature of the boiler furnace increases, which increases the loss of the boiler. At the same time, scaling in the water-cooled wall reduces the heat transfer effect, which may increase the temperature of the water-cooled wall tube wall and cause the water-cooled wall tube to burst, affecting the safe operation of the boiler.
[0003] After searching, a utility model patent with the publication number of CN209470242 specifically discloses that the utility model discloses a boiler environmental smoke exhaust device, including a smoke exhaust device shell, a control device, a purification device, and an emission device. The control device is arranged on the upper side of the smoke exhaust device shell, the emission device is arranged on one side of the control device, and the purification device is arranged on the lower surface of the inner part of the smoke exhaust device shell. The boiler environmental smoke exhaust device can filter the boiler exhaust through the installed purification device, use the absorption filter made of activated carbon to absorb nitrogen oxides, and use the purification device to neutralize and absorb carbon dioxide and sulfur dioxide in liquid. The solution after absorption can also be used in industry for synthetic gypsum and industrial desulfurization, so as to achieve material reuse and reduce costs. The exhaust quality can be monitored by the air quality gas sensor. When the gas quality does not meet the standard, the exhaust gas can be returned and re-filtered through the emission device to avoid polluting the atmosphere.
[0004] The above patent solves the problem of exhaust gas filtration and emission, but there are still problems of white mist phenomenon during emission and removal of scale inside the boiler. Therefore, it is necessary to invent a mechanical smoke exhaust device for gas boiler to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a mechanical smoke exhaust device for a gas boiler, which transports smoke generated by internal combustion through smoke pipe one and smoke pipe two, reduces the time that smoke stays inside, improves the thermal efficiency of the boiler, reduces the indoor temperature, improves the comfort of the staff, drives the demister to spray the smoke at the spray port, liquefies the gas into water, eliminates white smoke, and discharges the water from the sewage outlet to the pool, which needs to be disinfected and can be recycled, and the filter adsorbs the particulate matter in the smoke to improve the smoke purification rate and protect the environment, adds alkali to the internal feed water of the boiler body for descaling, and then discharges it through the sewage pipe of the steam valve until the interior is clean, avoids consuming more fuel, and does not affect the internal heat transfer effect, the steam valve discharges steam at high temperature from the water inside the boiler body, and a condenser can be installed on the outside of the steam valve to generate condensed water during the condensation process, which can be recycled and reused, which can effectively improve the energy utilization rate, reduce energy consumption and discharge pollutants, so as to solve the problems of white fog phenomenon and water scale removal inside the boiler during discharge in the prior art.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mechanical smoke exhaust device for a gas boiler, comprising a base and a boiler body, a column is fixedly connected to the top of the base, the boiler body is fixedly connected to the top of the column, a front smoke box is fixedly connected to one end of the inner wall of the boiler body, a backfire chamber is fixedly connected to the side of the front smoke box, a combustion chamber is fixedly connected to the side of the backfire chamber, a furnace is fixedly connected between the front smoke box and the combustion chamber, a smoke pipe 1 is fixedly connected between the front smoke box and the combustion chamber, a rear smoke box is fixedly connected to the other end of the inner wall of the boiler body, a smoke pipe 2 is fixedly connected between the front smoke box and the rear smoke box, and a smoke exhaust pipe is fixedly connected between the combustion chamber and the rear smoke box.
[0007] Preferably, a water pipe is fixedly connected to the side of the boiler body, a burner is fixedly connected to the side of the boiler body, and the burner is in communication with the boiler body.
[0008] Preferably, a chimney is fixedly connected to the side of the boiler body, the chimney is communicated with the rear smoke box, a demister is fixedly connected to the side of the chimney, and a steam valve is fixedly connected to the side wall of the boiler body.
[0009] Preferably, the output end of the demister is fixedly connected with a spray port, the interior of the chimney is fixedly connected with a fan, and the fan is driven by a motor.
[0010] Preferably, a filter is fixedly connected above the chimney, a sewage outlet is provided on the side of the lower end of the chimney, and a water outlet is provided on the side wall of the boiler body.
[0011] Preferably, there are multiple smoke tubes 2, and the multiple smoke tubes 2 are evenly distributed on the surface of the front smoke box.
[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:
[0013] 1. Through smoke pipe 1 and smoke pipe 2, the smoke generated by internal combustion is transported to reduce the time the smoke stays inside, improve the thermal efficiency of the boiler, reduce the indoor temperature, and improve the comfort of the staff. The demister is driven to spray the smoke through the spray port, and the gas is liquefied into water to eliminate white smoke. The water is discharged from the sewage outlet to the pool and needs to be disinfected. It can be recycled. The filter adsorbs the particulate matter in the smoke to improve the smoke purification rate and protect the environment.
[0014] 2. Add alkali to the feed water inside the boiler body to descale it, and then discharge it through the sewage pipe of the steam valve until the inside is clean, avoiding consuming more fuel and not affecting the internal heat transfer effect. The steam valve makes the water inside the boiler body discharge steam at high temperature. A condenser can be installed on the outside of the steam valve to produce condensed water during the condensation process. The condensed water can be recycled and reused, which can effectively improve energy utilization, reduce energy consumption and pollutant emissions. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;
[0018] Figure 3 It is a schematic diagram of the connection structure between the backfire chamber and the front smoke box of the utility model.
[0019] Description of reference numerals:
[0020] 1. Base; 2. Column; 3. Boiler body; 4. Front smoke box; 5. Backdraft chamber; 6. Combustion chamber; 7. Furnace; 8. Smoke pipe 1; 9. Rear smoke box; 10. Smoke pipe 2; 11. Exhaust pipe; 12. Water pipe; 13. Burner; 14. Chimney; 15. Defogger; 16. Spray nozzle; 17. Fan; 18. Filter; 19. Sewage outlet; 20. Steam valve; 21. Drain outlet. DETAILED DESCRIPTION
[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0022] The utility model provides Figure 1-3 A gas boiler mechanical smoke exhaust device shown includes a base 1 and a boiler body 3, a column 2 is fixedly connected to the top of the base 1, a boiler body 3 is fixedly connected to the top of the column 2, a front smoke box 4 is fixedly connected to one end of the inner wall of the boiler body 3, a backfire chamber 5 is fixedly connected to the side of the front smoke box 4, a combustion chamber 6 is fixedly connected to the side of the backfire chamber 5, a furnace 7 is fixedly connected between the front smoke box 4 and the combustion chamber 6, a smoke pipe 1 8 is fixedly connected between the front smoke box 4 and the combustion chamber 6, a rear smoke box 9 is fixedly connected to the other end of the inner wall of the boiler body 3, a smoke pipe 2 10 is fixedly connected between the front smoke box 4 and the rear smoke box 9, a smoke exhaust pipe 11 is fixedly connected between the combustion chamber 6 and the rear smoke box 9, and the smoke pipe 1 8 and the smoke pipe 2 10 transport the smoke generated by the internal combustion, reduce the residence time of the smoke inside, and improve the thermal efficiency of the boiler.
[0023] A water pipe 12 is fixedly connected to the side of the boiler body 3, and a burner 13 is fixedly connected to the side of the boiler body 3. The burner 13 is connected to the boiler body 3 to transmit water to the water pipe 12, which can be used for people's domestic water and building heating systems.
[0024] A chimney 14 is fixedly connected to the side of the boiler body 3, and the chimney 14 is connected to the rear smoke box 9. A demister 15 is fixedly connected to the side of the chimney 14. A steam valve 20 is fixedly connected to the side wall of the boiler body 3. The steam valve 20 allows the water inside the boiler body 3 to discharge steam at high temperature. A condenser can be installed on the outside of the steam valve 20 to generate condensed water during the condensation process, and the condensed water can be recycled and reused.
[0025] The output end of the demister 15 is fixedly connected with a spray port 16, and the interior of the chimney 14 is fixedly connected with a fan 17, which is driven by a motor to drive the demister 15 to spray the flue gas through the spray port 16 to cool it down. The flue gas is sprayed by the spray port 16 and liquefied into water, eliminating white smoke.
[0026] A filter 18 is fixedly connected above the chimney 14, a sewage outlet 19 is provided on the lower side of the chimney 14, and a water outlet 21 is provided on the side wall of the boiler body 3. The filter 18 adsorbs particulate matter in the flue gas to improve the exhaust purification rate and protect the environment.
[0027] There are multiple smoke pipes 10 2 , which are evenly distributed on the surface of the front smoke box 4 . The smoke pipes 10 2 can quickly transport smoke.
[0028] The utility model works as follows: the water delivery pipe 12 supplies soft water to the interior of the boiler body 3, drives the burner 13 to ignite, the internal temperature of the furnace 7 rises, the heat is transferred to the water inside, the flue gas is transferred to the smoke pipe 1 8 through the combustion chamber 6, and then the smoke pipe 1 8 is transferred to the front smoke box 4, and then transferred to the smoke pipe 2 10 to reach the interior of the rear smoke box 9, the smoke inside the rear smoke box 9 is driven by the motor to drive the fan 17 to rotate, the smoke enters the chimney 14, and drives the demister 15 to cool the smoke through the spray port 16 to spray, the smoke is sprayed by the spray port 16, liquefied into water, eliminates white smoke, and the water is discharged from the sewage outlet 19 to the pool, which needs to be disinfected and can be recycled, and the filter 18 adsorbs the particulate matter in the smoke to improve the smoke exhaust purification rate and protect the environment.
[0029] The water inside the boiler body 3 boils and is transferred to the water pipe 12, which can be used for people's domestic water and the heating system of buildings.
[0030] Scale will accumulate inside the boiler body 3 after long-term use. Alkali needs to be added to the internal feed water of the boiler body 3 to remove scale, and then discharged through the drain port 21 until the inside is clean, avoiding consumption of more fuel and not affecting the internal heat transfer effect.
[0031] The steam valve 20 allows the water inside the boiler body 3 to discharge steam at high temperature. A condenser can be installed outside the steam valve 20 to produce condensed water during the condensation process. The condensed water can be recycled and reused, which can effectively improve energy utilization, reduce energy consumption and pollutant emissions.
[0032] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A gas boiler mechanical smoke exhaust device, comprising a base (1) and a boiler body (3), characterized in that: The upper part of the base (1) is fixedly connected to a column (2), the upper part of the column (2) is fixedly connected to a boiler body (3), one end of the inner wall of the boiler body (3) is fixedly connected to a front smoke box (4), the side of the front smoke box (4) is fixedly connected to a backfire chamber (5), the side of the backfire chamber (5) is fixedly connected to a combustion chamber (6), a furnace (7) is fixedly connected between the front smoke box (4) and the combustion chamber (6), a smoke pipe 1 (8) is fixedly connected between the front smoke box (4) and the combustion chamber (6), the other end of the inner wall of the boiler body (3) is fixedly connected to a rear smoke box (9), a smoke pipe 2 (10) is fixedly connected between the front smoke box (4) and the rear smoke box (9), and a smoke exhaust pipe (11) is fixedly connected between the combustion chamber (6) and the rear smoke box (9).
2. A gas boiler mechanical smoke exhaust device according to claim 1, characterized in that: A water pipe (12) is fixedly connected to the side of the boiler body (3), a burner (13) is fixedly connected to the side of the boiler body (3), and the burner (13) is communicated with the boiler body (3).
3. A gas boiler mechanical smoke exhaust device according to claim 1, characterized in that: A chimney (14) is fixedly connected to the side of the boiler body (3), the chimney (14) is communicated with the rear smoke box (9), a demister (15) is fixedly connected to the side of the chimney (14), and a steam valve (20) is fixedly connected to the side wall of the boiler body (3).
4. A gas boiler mechanical smoke exhaust device according to claim 3, characterized in that: The output end of the demister (15) is fixedly connected to a spray port (16), and the interior of the chimney (14) is fixedly connected to a fan (17), and the fan (17) is driven by a motor.
5. A gas boiler mechanical smoke exhaust device according to claim 4, characterized in that: A filter (18) is fixedly connected above the chimney (14), a sewage outlet (19) is provided on the lower side of the chimney (14), and a water outlet (21) is provided on the side wall of the boiler body (3).
6. A gas boiler mechanical smoke exhaust device according to claim 1, characterized in that: The number of the second smoke tubes (10) is multiple, and the multiple second smoke tubes (10) are evenly distributed on the surface of the front smoke box (4).