Gas-fired boiler

Abstract

The utility model discloses a gas-fired boiler which comprises a boiler body, one end of the boiler body is provided with a burner, a corrugated inner container is arranged in the boiler body, one end of the corrugated inner container is connected with the burner, the other end of the corrugated inner container is connected with a reversal chamber, the top of the reversal chamber is connected with a smoke pipe, and the top of the boiler body is sequentially provided with a flue, an energy saver and a condenser. The device has the advantages of small occupied area, convenience in maintenance, high efficiency and energy conservation.

Description

Technical Field

[0001] The utility model belongs to the technical field of boilers, and specifically relates to a gas boiler. Background Art

[0002] At present, the frequency of use of gas steam boilers is increasing. This is mainly because gas is very environmentally friendly and has a very high operating efficiency. It is a complete combination of energy saving and environmental protection. Gas boilers refer to boilers that use gas as fuel. Compared with oil boilers and electric boilers, they are more economical. Therefore, users choose gas boilers as boiler equipment for steam, heating, and bathing. They are also widely used in industry, civil, laboratories, hospitals, engineering maintenance and other fields.

[0003] In the prior art, gas boilers have many components, occupy a large space and area, and are limited in their use occasions. The emission and treatment of flue gas generated by fuel combustion are unreasonable, which easily causes environmental pollution. They are not efficient and energy-saving, and will cause energy loss. Since the boiler needs to be used for a long time, the maintenance process of the boiler is inconvenient.

[0004] The invention patent with announcement number CN117346124A disclosed on January 5, 2024, a gas boiler and a gas boiler main steam temperature control method. The gas boiler includes a furnace, and a plurality of burner groups are arranged at intervals along the height direction of the furnace. The gas boiler does not have the effect of small occupation area and cannot be highly energy-efficient when used. Utility Model Content

[0005] The utility model aims to provide a gas boiler which occupies a small area, is convenient for maintenance and is highly efficient and energy-saving in view of the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The gas boiler comprises a furnace body, one end of which is provided with a burner, a corrugated inner tank is arranged in the furnace body, one end of the corrugated inner tank is connected to the burner, the other end of the corrugated inner tank is connected to a reburning chamber, the top of the reburning chamber is connected to a smoke pipe, and the top of the furnace body is provided with a flue, an economizer and a condenser in sequence.

[0008] The top of the furnace body is provided with a steam pipe seat, a first pipe seat and a second pipe seat in sequence, the steam pipe seat is connected to a steam-water separator, the first pipe seat is connected to a condenser, and the second pipe seat is connected to an economizer.

[0009] Water level gauge pipe seats and pressure gauge pipe seats are provided on both sides of the top of the furnace body. A water supply pipe seat is connected to one side of the furnace body, and a surface sewage pipe seat is connected to the other side of the furnace body. A sewage pipe seat is provided at the bottom of the furnace body, and a valve instrument is provided on the water supply pipe seat.

[0010] The smoke pipe is connected to the smoke duct, the smoke pipe is horizontally arranged, and the smoke pipes are arranged in sequence to form an arc structure.

[0011] The side of the reburning chamber is provided with straight support rods, which are arranged in pairs; the top two ends of the furnace body are provided with first diagonal support rods and second diagonal support rods, the second diagonal support rods are longer than the first diagonal support rods, and the first diagonal support rods and the second diagonal support rods are arranged at equal intervals in the furnace body.

[0012] The reburning chamber comprises a reburning chamber cylinder, a rear furnace core is arranged on one side of the reburning chamber cylinder, an inspection hole is arranged at one end of the furnace body, and the inspection hole is connected to the rear furnace core; hand holes are arranged on both sides of the bottom of the furnace body, and a manhole is also arranged on the top of the furnace body.

[0013] The furnace body, the economizer and the top of the condenser are all provided with lifting ears, a base is provided under the furnace body, a support is provided on the base, the support is arranged in pairs, and the furnace body is arranged on the support.

[0014] A ladder is arranged on the side of the furnace body, the bottom of the ladder is fixed on the base, and a guardrail is arranged on the top of the furnace body.

[0015] The furnace body is a column structure.

[0016] The technical effects of the utility model are as follows: the gas boiler of the utility model has a simple structure and a reasonable component layout. The flue, economizer and condenser are designed on the top of the furnace body, which is conducive to reducing the pipeline layout, achieving the effect of reducing the occupied space and occupying a small area; the smoke pipe layout in the furnace body is reasonable, the heat exchange efficiency is high, the furnace body structure strength is reliable, and the stability is high; the economizer and condenser are used to treat the flue gas before discharge, which reduces the temperature of the flue gas and realizes the recycling of energy, so that the smoke dust emission fully meets the environmental protection requirements and complies with various current regulations and standards. The steam-water separator and the surface sewage pipe seat remove impurities in the steam, thereby improving the quality of the output steam. Multiple maintenance and inspection holes are set on the furnace body to reduce the difficulty of boiler inspection and maintenance, meet the maintenance requirements of the boiler, and ensure the long-term reliable use of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] This specification includes the following drawings, which show the following contents:

[0018] Figure 1 This is a schematic diagram of the main structure of the gas boiler of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the gas boiler of the utility model;

[0020] Figure 3 It is a side view structural schematic diagram of the gas boiler of the utility model;

[0021] Figure 4 It is a schematic diagram of the top view of the gas boiler of the utility model.

[0022] The markings in the figure are: 1. furnace body; 2. burner; 3. corrugated inner liner; 4. backfire chamber; 5. smoke pipe; 6. flue; 7. economizer; 8. condenser; 9. steam-water separator; 10. steam pipe seat; 11. first pipe seat; 12. second pipe seat; 13. base; 14. support; 15. water level gauge pipe seat; 16. pressure gauge pipe seat; 17. water supply pipe seat; 18. surface sewage pipe seat; 19. sewage pipe seat; 20. straight support rod; 21. first oblique support rod; 22. second oblique support rod; 23. backfire chamber cylinder; 24. rear furnace; 25. inspection hole; 26. hand hole; 27. manhole; 28. lifting lug; 29. ​​escalator; 30. guardrail; 31. valve instrument. DETAILED DESCRIPTION

[0023] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0024] like Figures 1 to 4 As shown, the gas boiler comprises a furnace body 1, a burner 2 is provided at one end of the furnace body 1, a corrugated inner tank 3 is provided inside the furnace body 1, one end of the corrugated inner tank 3 is connected to the burner 2, the other end of the corrugated inner tank 3 is connected to a backfire chamber 4, a smoke pipe 5 is connected to the top of the backfire chamber 4, and a flue 6, an economizer 7 and a condenser 8 are provided in sequence on the top of the furnace body 1.

[0025] The flue 6, economizer 7 and condenser 8 are all installed on the top of the boiler, which is conducive to reducing the pipeline layout and improving the compactness of the components, thereby reducing the space occupied by the overall boiler. The corrugated inner tank 3 expands the heat exchange area of ​​the water in the boiler, which can improve the heat exchange efficiency and reduce the waiting time of users. The fuel is sprayed into the furnace by the burner 2 at the front of the boiler, and burns in the corrugated inner tank 3 to produce high-temperature flue gas that enters the reburner chamber 4, and then enters the front smoke box through the smoke pipe 5 from the reburner chamber 4, and then enters the economizer 7 and condenser 8 from the front smoke box through the flue 6 in turn, and finally discharged into the atmosphere through the chimney. The economizer 7 uses a low-temperature heat exchange medium to exchange heat with the flue gas. After absorbing heat, the low-temperature heat exchange medium will return to the boiler again, making secondary use of the waste heat, improving the performance of the steam equipment, and reducing energy consumption. The condenser 8 can condense the flue gas treated by the economizer 7 to further reduce the water content in the flue gas, and collect the condensed water and return it to the boiler to achieve steam recovery and reduce energy loss. The condenser 8 also cools the flue gas, which is beneficial to improving the safety of flue gas emissions.

[0026] like Figure 2As shown, the top of the furnace body 1 is provided with a steam pipe seat 10, a first pipe seat 11 and a second pipe seat 12 in sequence, the steam pipe seat 10 is connected to a steam-water separator 9, the first pipe seat 11 is connected to a condenser 8, and the second pipe seat 12 is connected to an economizer 7. The steam pipe seat 10 is used as the outlet of the boiler to produce steam, the steam-water separator 9 can separate the water droplets in the saturated steam, reduce the moisture in the steam, improve the dryness of the steam, and ensure the quality of the steam used by the user; the first pipe seat 11 can recycle the moisture separated from the flue gas by the condenser 8 into the boiler, and the economizer 7 allows the low-temperature heat exchange medium to enter the boiler through the second pipe seat 12 after absorbing heat, so as to achieve the function of energy recovery and utilization.

[0027] like Figure 3 As shown, water level gauge pipe seat 15 and pressure gauge pipe seat 16 are provided on both sides of the top of the furnace body 1, a water supply pipe seat 17 is connected to one side of the furnace body 1, and a surface sewage pipe seat 18 is connected to the other side of the furnace body 1. A sewage pipe seat 19 is provided at the bottom of the furnace body 1, and a valve instrument 31 is provided on the water supply pipe seat 17. The water supply pipe seat 17 is used for boiler water supply, the valve instrument 31 is used to open and close the water inlet pipeline and control the water inlet flow and pressure, and the sewage pipe seat 19 is provided at the bottom of the furnace body 1 to regularly replace the boiler water. The water level gauge pipe seat 15 is installed with a water level gauge, and the pressure gauge pipe seat 16 is installed with a pressure detection gauge, which respectively detects the water level in the furnace and the steam pressure in the furnace. Through intelligent control, automatic control of boiler water supply and automatic pressure regulation can be realized; because the boiler water will be concentrated when the boiler is running, foam containing impurities and high oil pollution will be generated on the steam-liquid interface, and the foam can be removed in time by connecting the sewage pipe through the surface sewage pipe seat 18 to the sewage pipe, so as to ensure the quality of the steam output.

[0028] like Figure 3 As shown, the smoke pipe 5 is connected to the flue 6, and the smoke pipe 5 is arranged horizontally. The smoke pipes 5 are arranged in sequence to form an arc structure. The smoke pipes 5 are arranged in sequence to form multiple groups of arc-shaped arrangement structures, which increases the number of smoke pipes 5, has a large heat exchange surface area, and has a high heat exchange efficiency. It also fully utilizes the installation space on the backfire chamber cylinder 23. The smoke generated by the backfire chamber 4 can quickly pass through the smoke pipe 5 to generate heat exchange with the furnace, which can accelerate the steam production rate. The smoke pipe 5 is a threaded smoke pipe 5, which has a larger surface area and a higher heat exchange efficiency.

[0029] like Figure 2 and Figure 3As shown, a straight support rod 20 is provided on the side of the reburning chamber 4, and the straight support rods 20 are arranged in pairs; a first oblique support rod 21 and a second oblique support rod 22 are provided at both ends of the top of the furnace body 1, and the second oblique support rod 22 is longer than the first oblique support rod 21, and the first oblique support rod 21 and the second oblique support rod 22 are arranged at equal intervals in the furnace body 1. The straight support rod 20 is used to support and stabilize the reburning chamber 4, and the two ends of the oblique support rod are fixed to the inner wall of the furnace body 1. The straight support rod 20 and the oblique support rod are used to enhance the strength of the gas boiler, which can improve the safety of the gas boiler. The first oblique support rod 21 and the second oblique support rod 22 are both located at the ends of the upper half of the furnace body 1, and their arrangement positions will not interfere with the installation positions of other components. At the same time, the number is increased, the structural strength of the furnace body 1 is improved, and its reliability in long-term use is ensured.

[0030] like Figure 2 As shown, the reburning chamber 4 includes a reburning chamber cylinder 23, a rear furnace 24 is provided on one side of the reburning chamber cylinder 23, an inspection hole 25 is provided at one end of the furnace body 1, and the inspection hole 25 is connected to the rear furnace 24; hand holes 26 are provided on both sides of the bottom of the furnace body 1, and a manhole 27 is also provided on the top of the furnace body 1. The inspection hole 25 can facilitate operators to inspect the reburning chamber 4 and the rear furnace 24 to ensure the reliable quality of the combustion components of the boiler, the hand hole 26 can facilitate operators to use tools to reach into the furnace body 1 for installation, maintenance or inspection, and the manhole 27 is an internal passage for maintenance of the furnace body 1. The arrangement of the inspection hole 25, the hand hole 26 and the manhole 27 facilitates the maintenance of the equipment.

[0031] like Figure 1 As shown, the furnace body 1, the economizer 7 and the condenser 8 are all provided with lifting ears 28 on the top, the furnace body 1 is provided with a base 13 below, the base 13 is provided with a support 14, the support 14 is provided in pairs, and the furnace body 1 is provided on the support 14. The lifting ears 28 are used for lifting and installing the above components, and the furnace body 1 combined with the supporting function of the support 14 can make the overall installation position of the furnace body 1 horizontal and stable, ensuring the normal operation of each device on the boiler.

[0032] like Figure 1 As shown, a ladder 29 is provided on the side of the furnace body 1, the bottom of the ladder 29 is fixed on the base 13, and a guardrail 30 is provided on the top of the furnace body 1. The ladder 29 is installed on the outside of the furnace body 1 to facilitate operators to climb onto the boiler for maintenance. Operators can inspect the inside of the boiler through the manhole 27, and the guardrails 30 on both sides of the boiler can improve the safety of operators during maintenance operations.

[0033] like Figure 3 As shown, the furnace body 1 is a columnar structure. The boiler adopting the columnar structure has a simple structure and low cost.

[0034] The boiler adopts intelligent control technology, fully realizing the functions of automatic water supply control, automatic pressure control, automatic high and low water level alarm, automatic overpressure (temperature) alarm, automatic protection and automatic alarm of burner 2 flameout, etc. It is safe and reliable. It is easy to operate and does not require special personnel to operate. All operations will run automatically when the button is pressed.

[0035] Burner 2 burns at a slight positive pressure, which is stable and safe, and has functions such as remote control start-up, high-pressure self-ignition protection and flameout protection, automatic proportional adjustment of oil and air, and automatic adjustment of combustion power between high and low firepower. Burner 2 can burn fuels such as diesel, city gas, natural gas, and heavy oil. When burning heavy oil, Burner 2 is equipped with an electric heating device, which can automatically adjust the heating amount according to the temperature of the fuel to ensure complete combustion. The user only needs to ensure that the heavy oil has sufficient flow performance before entering Burner 2.

[0036] The gas boiler has a simple structure and a reasonable component layout. The flue 6, economizer 7 and condenser 8 are designed on the top of the furnace body 1, which is conducive to reducing the pipeline layout and achieving the effect of reducing the occupied space and occupying a small area. The smoke pipe 5 in the furnace body 1 is reasonably arranged, the heat exchange efficiency is high, and the furnace body 1 has reliable structural strength and high stability. The economizer 7 and condenser 8 are used to treat the flue gas before discharge, which reduces the temperature of the flue gas and realizes the recycling of energy, so that the smoke dust emission fully meets the environmental protection requirements and complies with various current regulations and standards. The steam-water separator 9 and the surface sewage pipe seat 18 remove impurities in the steam, thereby improving the quality of the output steam. Multiple maintenance and inspection holes are set on the furnace body 1 to reduce the difficulty of boiler inspection and maintenance, meet the maintenance requirements of the boiler, and ensure the long-term reliable use of the boiler.

[0037] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A gas boiler, characterized in that: The invention comprises a furnace body (1), wherein a burner (2) is provided at one end of the furnace body (1), a corrugated inner container (3) is provided inside the furnace body (1), one end of the corrugated inner container (3) is connected to the burner (2), the other end of the corrugated inner container (3) is connected to a reburning chamber (4), the top of the reburning chamber (4) is connected to a smoke pipe (5), and a smoke duct (6), an economizer (7) and a condenser (8) are provided in sequence at the top of the furnace body (1).

2. The gas boiler according to claim 1, characterized in that: The top of the furnace body (1) is provided with a steam pipe seat (10), a first pipe seat (11) and a second pipe seat (12) in sequence; the steam pipe seat (10) is connected to a steam-water separator (9); the first pipe seat (11) is connected to a condenser (8); and the second pipe seat (12) is connected to an economizer (7).

3. The gas boiler according to claim 2, characterized in that: Water level gauge pipe seats (15) and pressure gauge pipe seats (16) are provided on both sides of the top of the furnace body (1); a water supply pipe seat (17) is connected to one side of the furnace body (1); a surface sewage pipe seat (18) is connected to the other side of the furnace body (1); a sewage pipe seat (19) is provided at the bottom end of the furnace body (1); and a valve instrument (31) is provided on the water supply pipe seat (17).

4. The gas boiler according to claim 3, characterized in that: The smoke pipe (5) is connected to the smoke duct (6), the smoke pipe (5) is arranged horizontally, and the smoke pipes (5) are arranged in sequence to form an arc structure.

5. The gas boiler according to any one of claims 1 to 4, characterized in that: The side of the reburning chamber (4) is provided with a straight support rod (20), and the straight support rods (20) are arranged in pairs; the top two ends of the furnace body (1) are provided with a first oblique support rod (21) and a second oblique support rod (22), the second oblique support rod (22) is longer than the first oblique support rod (21), and the first oblique support rod (21) and the second oblique support rod (22) are arranged at equal intervals in the furnace body (1).

6. The gas boiler according to claim 5, characterized in that: The reburning chamber (4) comprises a reburning chamber cylinder (23), a rear furnace (24) is provided on one side of the reburning chamber cylinder (23), an inspection hole (25) is provided at one end of the furnace body (1), and the inspection hole (25) is connected to the rear furnace (24); hand holes (26) are provided on both sides of the bottom of the furnace body (1), and a manhole (27) is also provided on the top of the furnace body (1).

7. The gas boiler according to claim 6, characterized in that: The furnace body (1), the economizer (7) and the condenser (8) are all provided with lifting ears (28) at the top, a base (13) is provided below the furnace body (1), a support (14) is provided on the base (13), the supports (14) are arranged in pairs, and the furnace body (1) is arranged on the support (14).

8. The gas boiler according to claim 7, characterized in that: A ladder (29) is provided on the side of the furnace body (1), the bottom of the ladder (29) is fixed on the base (13), and a guardrail (30) is provided on the top of the furnace body (1).

9. The gas boiler according to claim 8, characterized in that: The furnace body (1) is a column structure.

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