Steam generator

Abstract

The invention relates to the technical field of steam generators, in particular to a steam generator which comprises a combustion chamber, a heating chamber is fixedly installed above the combustion chamber, an evaporation chamber and a heat energy reusing chamber arranged above the evaporation chamber are arranged in the heating chamber, and a refractory plate is arranged between the heat energy reusing chamber and the evaporation chamber. A first flue opening is formed in one side of the refractory plate; compared with the prior art, the steam generator has the advantages that the heat energy recycling chamber is additionally arranged above the traditional main hearth, namely the evaporation chamber, and the steam overheating pipe is arranged in the heat energy recycling chamber, so that steam with high water content can be further heated, and the problems that steam produced by a traditional steam generator is high in water content and insufficient in dryness are effectively solved; and the steam output quality is effectively improved, the evaporation area can be effectively increased under the condition of not exceeding the national limited range, the steam efficiency and quality are effectively improved, and the purposes of high efficiency, safety, energy conservation and environmental protection can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of steam generators, in particular to a steam generator. Background Art

[0002] A steam generator is a heat energy conversion device that heats the water flowing in the pipe into steam and quickly outputs the steam to the outside. As the amount of steam increases, its volume and water capacity must also increase. When the water capacity exceeds 30L, it falls into the category of boilers of special equipment that need to be included in the national quality and technical supervision and management. Therefore, in order to ensure the safety of use, the state limits the total volume to less than 30 liters. Only when it is below 30 liters can the safety of use and the stability of steam output be guaranteed.

[0003] At present, since the total volume is limited to less than 30 liters, the water in the steam generation (output) is easily insufficiently heated, resulting in the output steam having a high water content and insufficient steam dryness, which brings certain inconveniences to subsequent use. For this reason, the present invention proposes a steam generator. Summary of the invention

[0004] The object of the present invention is to provide a steam generator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a steam generator, comprising a combustion chamber, a heating chamber fixedly installed above the combustion chamber, an evaporation chamber and a heat energy recycling chamber arranged above the evaporation chamber are arranged inside the heating chamber, a refractory plate is arranged between the heat energy recycling chamber and the evaporation chamber, and a first flue port is opened on one side of the refractory plate, an evaporation pipe fitting is arranged in the heating chamber, one end of the evaporation pipe fitting is connected to a water inlet pipe, the other end of the evaporation pipe fitting is connected to a steam outlet pipe, and the steam outlet pipe extends upward to the outside of the heating chamber and is fixedly installed with a steam gate valve, one end of the steam gate valve is fixedly installed with a steam inlet pipe, and one end of the steam inlet pipe is connected to a steam exhaust pipe through a steam superheating pipe, and the steam superheating pipe is arranged inside the heat energy recycling chamber.

[0006] As a preferred technical solution of the present invention, the steam superheater pipe is arranged inside the heat energy recycling chamber in a circuitous and folded form.

[0007] As a preferred technical solution of the present invention, the sum of the internal volumes of the water inlet pipe, the evaporation pipe and the steam outlet pipe is less than 30L.

[0008] As a preferred technical solution of the present invention, a normal pressure preheater is fixedly installed on the top of the heating chamber, a hot smoke pipe is opened inside the normal pressure preheater, a heat exchange chamber is arranged outside the hot smoke pipe, and a second flue port is arranged at the bottom of the normal pressure preheater, the heat energy reuse chamber is connected with the hot smoke pipe through the second flue port, a smoke outlet connected with the hot smoke pipe is arranged on the top of the normal pressure preheater, and the heat exchange chamber is connected with the water inlet pipe.

[0009] As a preferred technical solution of the present invention, a preheater water outlet pipe is fixedly installed on one side of the atmospheric pressure preheater, and a water pump is installed at the end of the preheater water outlet pipe away from the atmospheric pressure preheater, the end of the water pump away from the preheater water outlet pipe is fixedly connected to the water inlet pipe, and the preheater water outlet pipe is communicated with the heat exchange chamber.

[0010] As a preferred technical solution of the present invention, a water tank is arranged on the top of the atmospheric pressure preheater, and the bottom of the water tank is connected to the heat exchange chamber through a connecting water pipe.

[0011] As a preferred technical solution of the present invention, a burner is arranged inside the combustion chamber, and a combustion connecting pipe is fixedly installed on one side of the bottom of the burner.

[0012] As a preferred technical solution of the present invention, a blower is fixedly installed at one end of the combustion connecting pipe away from the burner, and a feed port is provided at one side of the combustion chamber.

[0013] As a preferred technical solution of the present invention, a burner connecting pipe is fixedly installed on one end of the combustion connecting pipe away from the burner, and a flame nozzle is arranged on the top of the burner.

[0014] As a preferred technical solution of the present invention, the refractory board is made of refractory bricks, and the combustion chamber and the heating chamber both include a refractory heat-conducting inner layer and a heat-insulating outer layer.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] A steam generator of the present invention can further heat the steam with a large water content by adding a heat energy recycling chamber above the traditional main furnace, i.e., the evaporation chamber, and arranging steam superheating pipes in the heat energy recycling chamber, thereby effectively solving the problems of high water content and insufficient dryness of the steam produced by the traditional steam generator, effectively improving the steam output quality, and effectively increasing the evaporation area without exceeding the range specified by the state, effectively accelerating the steam efficiency and quality, and achieving the goals of high efficiency, safety, energy saving, and environmental protection.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention from a front and side perspective;

[0019] Figure 2 It is a schematic diagram of the overall structure of the present invention from a rear side perspective;

[0020] Figure 3 It is a schematic diagram of the partial internal structure of the present invention from a front and side perspective;

[0021] Figure 4 A schematic diagram of a partial internal structure of the present invention from a rear side perspective;

[0022] Figure 5 It is a cross-sectional structural schematic diagram of the present invention.

[0023] In the figure: 10, combustion chamber; 11, burner; 12, combustion connecting pipe; 13, ash cleaning port; 14, feed port; 15, base frame; 20, heating chamber; 21, evaporation chamber; 22, heat energy reuse chamber; 23, refractory board; 230, first flue port; 24, steam exhaust pipe; 26, evaporation pipe fittings; 261, lower header; 262, upper header; 263, connecting pipe; 27, water inlet pipe; 28, steam superheater pipe; 29, steam inlet pipe; 30, atmospheric preheater; 300, second flue port; 31, smoke outlet; 32, heat exchange chamber; 33, hot smoke pipe; 34, preheater water outlet pipe; 35, preheater sewage pipe; 40, steam gate valve; 50, steam outlet pipe; 60, water tank; 70, water pump; 81, heating chamber sewage pipe. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-Figure 5 In this embodiment, a steam generator is provided, including a combustion chamber 10, a heating chamber 20 is fixedly installed above the combustion chamber 10, an evaporation chamber 21 and a heat energy reuse chamber 22 arranged above the evaporation chamber 21 are arranged inside the heating chamber 20, and a fireproof plate 23 is arranged between the heat energy reuse chamber 22 and the evaporation chamber 21, and a first flue port 230 is opened on one side of the fireproof plate 23, an evaporation pipe 26 is arranged in the heating chamber 20, one end of the evaporation pipe 26 is connected to a water inlet pipe 27, and the other end of the evaporation pipe 26 is connected to a steam outlet pipe 50, and the steam outlet pipe 50 extends upward. The steam gate valve 40 is fixedly installed to the outside of the heating chamber 20, a steam inlet pipe 29 is fixedly installed at one end of the steam gate valve 40, and one end of the steam inlet pipe 29 is connected to the steam exhaust pipe 24 through a steam superheating pipe 28, and the steam superheating pipe 28 is arranged inside the heat energy reuse chamber 22, and the side walls of the combustion chamber 10 and the heating chamber 20 are both provided with a ash cleaning port 13, and the evaporation pipe 26 includes a lower header 261 arranged at the bottom thereof and an upper header 262 arranged at the top thereof, and the lower header 261 and the upper header 262 are fixedly connected by a plurality of connecting pipes 263, and one end of the lower header 261 is connected to the upper header 262. The water inlet pipe 27 is fixedly connected, the number of the lower header 261 is two groups, the two groups of lower headers 261 are arranged in parallel with each other, and the cross-sections of the connecting pipe 263, the lower header 261 and the upper header 262 form a triangular structure, and the steam outlet pipe 50 is fixedly installed at the upper end of the upper header 262. The sum of the internal volumes of the water inlet pipe 27, the evaporation pipe 26 and the steam outlet pipe 50 is less than 30L, and the steam superheater pipe 28 is arranged in a circuitous and return form inside the heat energy reuse chamber 22. The main furnace adopts a full water design at the fire boundary, and the total design volume is less than 30 liters, which is divided into a lower header and an upper header to avoid the furnace The water-cooled wall is dry-burned and the tubes burst. The top of the upper header is designed as a steam superheater tube to increase the heat exchange area and effectively accelerate the evaporation of steam and water. By adding a heat energy reuse chamber 22 above the traditional main furnace, i.e., the evaporation chamber 21, and arranging a steam superheater tube 28 in the heat energy reuse chamber 22, the steam with a large water content can be further heated, thereby effectively solving the problem of high water content and insufficient dryness of steam produced by traditional steam generators, effectively improving the quality of steam output, and effectively increasing the evaporation area without exceeding the national limit, effectively accelerating the steam efficiency and quality.

[0028] In this embodiment, a normal pressure preheater 30 is fixedly installed on the top of the heating chamber 20, a hot smoke pipe 33 is opened inside the normal pressure preheater 30, and a heat exchange chamber 32 is arranged outside the hot smoke pipe 33, and a second flue port 300 is arranged at the bottom of the normal pressure preheater 30, the heat energy reuse chamber 22 is connected with the hot smoke pipe 33 through the second flue port 300, a smoke outlet 31 connected with the hot smoke pipe 33 is arranged on the top of the normal pressure preheater 30, and the heat exchange chamber 32 is connected with the water inlet pipe 27, a preheater drain pipe 35 is also fixedly installed on the normal pressure preheater 30, a heating chamber drain pipe 81 is fixedly installed on one side of the heating chamber 20, and the heating chamber drain pipe 81 is connected with the evaporation pipe 26. A preheater water outlet pipe 34 is fixedly installed on one side of the atmospheric pressure preheater 30, and a water pump 70 is installed on the end of the preheater water outlet pipe 34 away from the atmospheric pressure preheater 30, and the end of the water pump 70 away from the preheater water outlet pipe 34 is fixedly connected to the water inlet pipe 27, the preheater water outlet pipe 34 is connected to the heat exchange chamber 32, a water tank 60 is arranged on the top of the atmospheric pressure preheater 30, and the bottom of the water tank 60 is connected to the heat exchange chamber 32 through a connecting water pipe, wherein the atmospheric pressure preheater 30 designed on the top of the steam superheater tube can use the tail smoke temperature to preheat the water in advance, and the preheated water can be quickly converted into steam after entering the combustion chamber, thereby achieving the purposes of high efficiency, safety, energy saving and environmental protection.

[0029] Among them, a base frame 15 is fixedly installed at the bottom of the combustion chamber 10, and the base frame 15 can improve the stability of the steam generator. A burner 11 is arranged inside the combustion chamber 10, and a combustion connecting pipe 12 is fixedly installed on one side of the bottom of the burner 11. The combustion connecting pipe 12 can be used to connect a blower or a burner according to needs, so that gas type or biomass particle type can be switched as the combustion material.

[0030] In this embodiment, a blower is fixedly installed at one end of the combustion connecting pipe 12 away from the burner 11, a feed port 14 is provided on one side of the combustion chamber 10, and biomass fuel is provided in the combustion chamber 10, and the biomass pellet fuel can be used for heating to produce steam.

[0031] In this embodiment, a burner connecting pipe is fixedly installed at one end of the combustion connecting pipe 12 away from the burner 11, and a flame nozzle is provided on the top of the burner 11, so that gas can be used for heating to produce steam.

[0032] In this embodiment, the refractory plate 23 is made of refractory bricks, and the combustion chamber 10 and the heating chamber 20 both include a refractory heat-conductive inner layer and a thermal insulation outer layer. Specifically, the refractory plate 23 is cast with a 1200°C refractory castable such as a high-alumina or silicon carbide base. The refractory heat-conductive inner layer adopts a high thermal conductivity refractory layer, which can enhance heat transfer, and the thermal insulation outer layer is an aluminum silicate fiber felt layer, which can reduce heat dissipation losses.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam generator, characterized in that: The invention comprises a combustion chamber (10), a heating chamber (20) is fixedly installed above the combustion chamber (10), an evaporation chamber (21) and a heat energy reuse chamber (22) arranged above the evaporation chamber (21) are arranged inside the heating chamber (20), a fireproof plate (23) is arranged between the heat energy reuse chamber (22) and the evaporation chamber (21), and a first flue port (230) is opened on one side of the fireproof plate (23), an evaporation pipe (26) is arranged in the heating chamber (20), and the evaporation pipe (26) One end of the evaporation pipe (26) is connected to a water inlet pipe (27), the other end of the evaporation pipe (26) is connected to a steam outlet pipe (50), and the steam outlet pipe (50) extends upward to the outside of the heating chamber (20) and is fixedly installed with a steam gate valve (40), one end of the steam gate valve (40) is fixedly installed with a steam inlet pipe (29), and one end of the steam inlet pipe (29) is connected to a steam exhaust pipe (24) through a steam superheating pipe (28), and the steam superheating pipe (28) is arranged inside the heat energy recycling chamber (22).

2. A steam generator according to claim 1, characterized in that: The steam superheating pipe (28) is arranged in a circuitous and folded manner inside the heat energy recycling chamber (22).

3. A steam generator according to claim 1, characterized in that: The sum of the internal volumes of the water inlet pipe (27), the evaporation pipe (26) and the steam outlet pipe (50) is less than 30L.

4. A steam generator according to claim 1, characterized in that: A normal pressure preheater (30) is fixedly installed on the top of the heating chamber (20), a hot smoke pipe (33) is provided inside the normal pressure preheater (30), a heat exchange chamber (32) is provided outside the hot smoke pipe (33), and a second flue port (300) is provided at the bottom of the normal pressure preheater (30), the heat energy reuse chamber (22) is connected to the hot smoke pipe (33) through the second flue port (300), a smoke outlet (31) connected to the hot smoke pipe (33) is provided at the top of the normal pressure preheater (30), and the heat exchange chamber (32) is connected to the water inlet pipe (27).

5. A steam generator according to claim 4, characterized in that: A preheater water outlet pipe (34) is fixedly installed on one side of the atmospheric pressure preheater (30), and a water pump (70) is installed at one end of the preheater water outlet pipe (34) away from the atmospheric pressure preheater (30), and one end of the water pump (70) away from the preheater water outlet pipe (34) is fixedly connected to the water inlet pipe (27), and the preheater water outlet pipe (34) is connected to the heat exchange chamber (32).

6. A steam generator according to claim 5, characterized in that: A water tank (60) is arranged on the top of the atmospheric pressure preheater (30), and the bottom of the water tank (60) is connected to the heat exchange chamber (32) via a connecting water pipe.

7. A steam generator according to claim 1, characterized in that: A burner (11) is arranged inside the combustion chamber (10), and a combustion connecting pipe (12) is fixedly mounted on one side of the bottom of the burner (11).

8. A steam generator according to claim 7, characterized in that: A blower is fixedly mounted on one end of the combustion connecting pipe (12) away from the burner (11), and a feed port (14) is provided on one side of the combustion chamber (10).

9. A steam generator according to claim 7, characterized in that: A burner connecting pipe is fixedly mounted on one end of the combustion connecting pipe (12) away from the burner (11), and a flame ejection port is arranged on the top of the burner (11).

10. The steam generator according to claim 1, characterized in that: The refractory plate (23) is made of refractory bricks, and the combustion chamber (10) and the heating chamber (20) both include a refractory heat-conducting inner layer and a heat-insulating outer layer.

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