CN221958836U - A steam boiler with fuel oil and gas central backfire structure - Google Patents

Abstract

The utility model relates to the technical field of boilers, in particular to a steam boiler with a fuel gas central backfire structure, which comprises a boiler body, wherein a hearth is arranged in the boiler body, a wave liner is arranged on the outer side wall of the hearth, a burner is arranged at one end of the boiler body, a smoke tube is arranged in the boiler body and positioned outside the hearth, a front smoke box is arranged at one end of the smoke tube, a rear smoke box is arranged at the other end of the smoke tube, a steam-water separator is arranged above the inner part of the boiler body, a steam pipe seat is arranged at the top of the steam-water separator, a smoke outlet is arranged at the top of the rear smoke box, and an explosion-proof door is arranged at one end of the boiler body. In the steam boiler with the fuel gas central backfire structure, firstly, the combustion efficiency of the boiler is obviously improved. By fully burning the fuel in the hearth, the energy in the fuel can be fully utilized, and the energy waste is reduced. Meanwhile, the emissions of the boiler are effectively controlled, and the influence on the environment is reduced. Secondly, the structure of the boiler is simplified, and the installation and the maintenance are convenient.

Description

A steam boiler with fuel oil and gas central backfire structure

Technical Field

The utility model relates to the technical field of boilers, in particular to a steam boiler with a fuel oil and gas central back-burning structure.

Background Art

The oil-gas central combustion steam boiler is a common energy equipment widely used in industrial and commercial fields. The main function of this boiler is to introduce the high-temperature flue gas generated by the combustion of fuel (such as oil or gas) into the furnace and heat the water into steam through heat exchange. In order to improve the efficiency and safety of the boiler, it is necessary to continuously optimize and improve the structure and function of the boiler.

There are some problems with the existing oil-fired gas central backfired steam boiler. First, the boiler's combustion efficiency is not high, resulting in energy waste and environmental pollution. Second, the boiler's structure is complex, which is not conducive to installation and maintenance. In addition, the boiler's safety performance also needs to be further improved, such as preventing the occurrence of dangerous situations such as explosions.

Utility Model Content

The purpose of the utility model is to provide a steam boiler with a fuel gas central backfire structure to solve the problems raised in the above background technology. First, the combustion efficiency of the boiler is not high, resulting in energy waste and environmental pollution. Second, the structure of the boiler is complex, which is not conducive to installation and maintenance. In addition, the safety performance of the boiler also needs to be further improved, such as preventing the occurrence of dangerous situations such as explosions.

To achieve the above-mentioned purpose, the utility model provides a fuel gas central backfire structure steam boiler, including a furnace body, a furnace is arranged inside the furnace body, a wave gall is arranged on the outer wall of the furnace, a burner is installed at one end of the furnace body, a smoke pipe is installed inside the furnace body outside the furnace, a front smoke box is installed at one end of the smoke pipe, a rear smoke box is installed at the other end of the smoke pipe, a steam-water separator is installed above the interior of the furnace body, a steam pipe seat is arranged on the top of the steam-water separator, a smoke outlet is arranged on the top of the rear smoke box, and an explosion-proof door is installed at one end of the furnace body.

Preferably, a base is installed at the bottom of the furnace body, and an insulation layer is provided on the outer wall of the furnace body.

Preferably, a sewage pipe is connected to the bottom of the furnace body.

Preferably, an inspection hole is provided on the top of the furnace body.

Preferably, a pressure gauge pipe seat and a water level gauge pipe seat are installed on the top of the furnace body.

Preferably, a platform ladder is installed on the outer side of the top of the furnace body.

Preferably, a water supply pipe seat is installed on the outer side of the furnace body.

Preferably, the outside of the furnace body is connected to a circulating water connecting pipe, and a vent valve is provided on the top of the circulating water connecting pipe.

Compared with the prior art, the utility model has the following beneficial effects:

In the steam boiler with fuel gas central backfire structure, firstly, the combustion efficiency of the boiler is significantly improved. By fully burning the fuel in the furnace, the energy in the fuel can be fully utilized and energy waste can be reduced. At the same time, the emissions of the boiler are effectively controlled, reducing the impact on the environment. Secondly, the structure of the boiler is simplified, which is convenient for installation and maintenance. By optimizing the design of the boiler, unnecessary components and structures are reduced, and the manufacturing cost and maintenance difficulty are reduced. In addition, the safety performance of the boiler is significantly improved. By adopting safety measures such as explosion-proof doors, dangerous situations such as explosions of the boiler under abnormal conditions can be effectively prevented, ensuring the safety of the operator.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the overall structure of the utility model;

FIG. 2 is a schematic diagram of the side structure of the present utility model.

The meaning of each number in the figure is:

1. Furnace body; 11. Base; 12. Insulation layer; 13. Drain pipe; 14. Inspection hole; 15. Pressure gauge socket; 16. Water level gauge socket; 17. Platform ladder; 18. Water supply pipe socket; 2. Furnace; 21. Wave bladder; 3. Burner; 4. Smoke pipe; 5. Front smoke box; 6. Circulating water connecting pipe; 61. Air release valve; 7. Steam-water separator; 8. Steam pipe socket; 9. Safety valve socket; 10. Rear smoke box; 101. Smoke outlet; 19. Explosion-proof door.

DETAILED DESCRIPTION

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.

The utility model provides a fuel gas central backfire structure steam boiler, as shown in Figures 1-2, including a furnace body 1, a furnace 2 is arranged inside the furnace body 1 for fuel combustion, a wave gallbladder 21 is arranged on the outer wall of the furnace 2 to increase the contact area with water in the furnace body 1 and improve the heat exchange effect, a burner 3 is installed at one end of the furnace body 1, a smoke pipe 4 is installed inside the furnace body 1 on the outer side of the furnace 2 for smoke transportation, a front smoke box 5 is installed at one end of the smoke pipe 4, and a rear smoke box 5 is installed at the other end of the smoke pipe 4 The flue gas enters the front smoke box 5 through the smoke pipe 4 and then enters the rear smoke box 10. A steam-water separator 7 is installed from the top of the furnace body 1 to separate steam and water. A steam pipe seat 8 is provided on the top of the steam-water separator 7 to connect an external steam pipeline to discharge steam. A smoke outlet 101 is provided on the top of the rear smoke box 10 to discharge smoke. An explosion-proof door 19 is installed at one end of the furnace body 1. A safety valve pipe seat 9 is also installed on the top of the furnace body 1 to relieve pressure when the pressure is too high.

In this embodiment, a base 11 is installed at the bottom of the furnace body 1 for supporting and fixing the bottom of the furnace body 1 . An insulation layer 12 is provided on the outer wall of the furnace body 1 . The insulation layer 12 is made of asbestos tile material to improve the insulation effect of the furnace body 1 .

Specifically, a sewage pipe 13 is connected to the bottom of the furnace body 1 for discharging sewage inside the furnace body 1 .

Furthermore, an inspection hole 14 is provided on the top of the furnace body 1 for routine maintenance work.

Furthermore, a pressure gauge socket 15 and a water level gauge socket 16 are installed on the top of the furnace body 1. The pressure gauge socket 15 is used to detect pressure, and the water level gauge socket 16 is used to connect an external water level gauge.

Furthermore, a platform ladder 17 is installed on the outer side of the top of the furnace body 1 for maintenance personnel to climb up and perform maintenance operations.

Furthermore, a water supply pipe seat 18 is installed on the outer side of the furnace body 1 for connecting an external water pipe for water supply.

Furthermore, the outside of the furnace body 1 is connected to a circulating water connecting pipe 6 , and a vent valve 61 is provided on the top of the circulating water connecting pipe 6 . The circulating water connecting pipe 6 allows water at the bottom of the furnace body 1 to flow back to the upper part, thereby ensuring the circulation of water in the furnace body 1 .

When the utility model fuel oil and gas central backfire structure steam boiler is in use, first the fuel is sprayed forward from the burner 3 into the furnace 2, and is burned under positive pressure in the furnace 2. Due to the high-speed flame, the smoke causes a backflow (entrainment) effect in the furnace 2, and the high-temperature smoke returns to the front smoke box 5 at the tail end of the furnace 2, and then enters the rear smoke box 10. During the flow of the smoke, the smoke fully exchanges heat with the water in the furnace body 1, and is finally discharged into the atmosphere through the chimney. After the water in the furnace body 1 is heated, it is separated from the water by the steam-water separator 7, and the steam enters the steam pipeline through the steam pipe seat 8 to realize the discharge of the steam. The circulating water connecting pipe 6 allows the water at the bottom of the furnace body 1 to flow back to the upper part, thereby ensuring the circulation of the water in the furnace body 1.

Finally, it should be noted that the burner 3 and other electronic components in this embodiment are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle space of this device, all the above-mentioned electrical components are connected by wires respectively, and the specific connection means should refer to the working sequence between the electrical components in the above-mentioned working principle to complete the electrical connection, which are all well-known technologies in the art.

The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims (8)

1. A steam boiler with a fuel gas central backfire structure, comprising a furnace body (1), characterized in that: a furnace (2) is arranged inside the furnace body (1), an outer wall of the furnace (2) is provided with a wave bladder (21), a burner (3) is installed at one end of the furnace body (1), a smoke pipe (4) is installed inside the furnace body (1) outside the furnace (2), a front smoke box (5) is installed at one end of the smoke pipe (4), a rear smoke box (10) is installed at the other end of the smoke pipe (4), a steam-water separator (7) is installed above the interior of the furnace body (1), a steam pipe seat (8) is arranged at the top of the steam-water separator (7), a smoke outlet (101) is arranged at the top of the rear smoke box (10), and an explosion-proof door (19) is installed at one end of the furnace body (1). 2. The fuel-gas central re-combustion structure steam boiler according to claim 1 is characterized in that a base (11) is installed at the bottom of the furnace body (1), and an insulation layer (12) is provided on the outer wall of the furnace body (1). 3. The oil-fired gas central re-combustion structure steam boiler according to claim 1, characterized in that a sewage pipe (13) is connected to the bottom of the furnace body (1). 4. The oil-fired gas central backfire structure steam boiler according to claim 1, characterized in that an inspection hole (14) is provided on the top of the furnace body (1). 5. The oil-fired gas central backfire structure steam boiler according to claim 1, characterized in that a pressure gauge pipe seat (15) and a water level gauge pipe seat (16) are installed on the top of the furnace body (1). 6. The oil-fired gas central backfire structure steam boiler according to claim 1, characterized in that a platform escalator (17) is installed on the outer side of the top of the furnace body (1). 7. The oil-fired gas central backfire structure steam boiler according to claim 1, characterized in that a water supply pipe seat (18) is installed on the outer side of the furnace body (1). 8. The oil-fired gas central backfired structure steam boiler according to claim 1 is characterized in that: a circulating water connecting pipe (6) is connected to the outside of the furnace body (1), and a vent valve (61) is provided on the top of the circulating water connecting pipe (6).