CN112228851A - Energy-saving gas steam generator - Google Patents

Abstract

The invention relates to an energy-saving gas steam generator, which comprises a burner, a steam bin, a water level control box and a plurality of vertical heat exchange plates, wherein each vertical heat exchange plate corresponds to and is welded with an upper air inlet and a lower air inlet on a panel through an upper fire inlet and a lower fire inlet on the front part of the vertical heat exchange plate, the rear outlet of each vertical heat exchange plate is welded with a smoke box, the upper part of the smoke box is welded with a plurality of flue pipes, the other end of each flue pipe is welded on a waste heat device seat, and the outlet on the rear part of each vertical heat exchange plate is communicated with the smoke box, the smoke box and the flue pipe on the upper part, the flue pipe and the waste heat device seat and a waste heat utilization device after being. Welding and assembling the vertical heat exchange plates, the smoke box, the flue pipe and the waste heat device seat and then placing the welded and assembled vertical heat exchange plates, the smoke box, the flue pipe and the waste heat device seat on a support with the height of 2-8 cm at the lower part of the water box; the steam chamber with the steam-water separation device is arranged at the water tank, and the upper part of the steam chamber is provided with a steam outlet pipe; a water level control box with a water level sensor is arranged on the right side of the steam bin.

Description

Energy-saving gas steam generator

Technical Field

The invention relates to a combustible gas steam generating furnace, in particular to an energy-saving gas steam generator.

Background

The steam generator is used as a process device for producing heat energy and power, is generally used in industrial production and people's life, particularly can directly provide the heat energy required for production and life, meets the requirements of people on environment, safety and automation by virtue of the characteristics of high quality, environmental protection and cleanness, and is popular with people. In operation, the water flows circularly to absorb and take away the heat of the heated surface continuously, which not only heats or vaporizes the water into steam, but also cools the heated surface, thus ensuring the safe operation of the heated surface of the generator under high temperature condition. However, most of the combustion chambers of the conventional gas steam generators are arranged at the lower part of the furnace body, a layer of thick scale is gradually formed on the heating surface after water is boiled, and when the scale with the working pressure of 0.7Mpa is formed on the steam generator with the working pressure of 1mm, 8% of fuel is wasted. In order to save fuel gas and ensure the safe operation of the furnace, the furnace is frequently stopped, drained and descaled, thereby causing certain influence on the production. In addition, when the steam generator operates, water in the boiler is heated and evaporated to be gradually reduced, and when the water in the steam generator is too little or even is burnt, heat energy released by combustion of combustible gas directly heats the equipment, so that the boiler body is overheated, and even explosion accidents can occur.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an energy-saving gas steam generator which can separate scale produced in operation from a heating surface and then precipitate the scale to the lower part of a non-heating surface under the action of self weight, thereby not only effectively solving the problems that the heating surface of the traditional bottom combustion steam generator wastes gas and influences heat efficiency due to scale formation, but also prolonging the interval time of scale cleaning and facilitating scale cleaning; and an intelligent water level control device is arranged, so that water in the water tank can be supplemented timely and automatically, and the problems of empty burning and the like can be prevented.

The technical scheme adopted by the invention for solving the technical problems is as follows: an energy-saving gas steam generator comprises a burner, a steam bin, a water level control box and heat exchange plates, wherein the device for combustion heat exchange, steam generation and steam storage consists of a plurality of vertical heat exchange plates, a smoke box, a flue pipe, a waste heat seat, a water tank and a steam bin; the steam bin is arranged at the upper part of the water tank, a steam-water separation device is arranged in the steam bin, and a steam outlet pipe is arranged at the upper part of the steam bin; a water level control box is arranged on the right side of the steam bin, and a water level sensor is arranged on the water level control box.

The outlet at the rear part of the vertical heat exchange plate is communicated with the smoke box, the smoke box is communicated with the smoke pipe at the upper part, the smoke pipe is communicated with the waste heat seat, and the waste heat seat is communicated with the waste heat utilization device after being welded together.

The vertical heat exchange plate is perpendicular to the bottom plane of the water tank when being installed.

The height of the support arranged in the water tank is 2-8 cm.

The vertical heat exchange plate has the advantages that the vertical heat exchange plate is adopted, the formed scale automatically falls off and enters the lower part of the water tank support under the action of self weight, the scale is easy to clean, the gas production is fast, the energy is saved, the environment is protected, the steam purity is high, the air pressure is stable, the sanitation is up to the standard, the size is small, the weight is light, the occupied area is small, the installation is fast, the use is convenient and safe.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a rear view of the structure of fig. 1.

FIG. 3 is a schematic diagram of the heat exchange structure of the present invention.

Fig. 4 is a schematic view of the heat exchange element of the present invention installed in a water tank.

In the figure: 1. a gas switch; 2. a gas distributor; 3. an air inlet; 4. an igniter; 5. a combustion heat exchange chamber; 6. a steam bin; 7. an automatic control device; 8. a steam outlet pipe; 9. a motor; 10. an induced draft fan; 11. a smoke outlet; 12. a hot water pipe; 13. a waste heat utilization device; 14. a water inlet pipe; 15. a water level sensor; 16. a water level control tank; 17. bending the pipe; 18. a tap water switch; 19. a scale discharge port; 20. a fire inlet hole; 21. a vertical heat exchange plate; 22. a waste heat base; 23. a flue pipe; 24. a smoke box; 25. a water tank; 26. water; 27. and (4) a bracket.

Detailed Description

In fig. 1 to 4, an energy-saving gas steam generator comprises a burner, a steam chamber, a water level control box, heat exchange plates, a combustion heat exchange chamber (5) composed of a plurality of vertical heat exchange plates (21), a smoke box (24), a flue pipe (23), a waste heat seat (22) and a water tank (25), wherein each vertical heat exchange plate corresponds to and is welded with an upper air inlet hole and a lower air inlet hole (3) on a panel through an upper fire inlet hole and a lower fire inlet hole (20) on the front part of each vertical heat exchange plate, the rear outlet of each vertical heat exchange plate is welded with the smoke box (24), the upper part of the smoke box is welded with a plurality of flue pipes (23), the other end of each flue pipe is welded on the waste heat seat (22), and the outlet of the rear part of each vertical heat exchange plate is communicated with the smoke box, the flue pipe on the upper part of the smoke box, the flue pipe and the waste heat seat, and the waste heat utilization device. The vertical heat exchange plates, the smoke box, the flue pipe and the waste heat device seat are welded and then are arranged on a bracket (27) of the water tank (25); the vertical heat exchange plate is perpendicular to the bottom plane of the water tank when being installed. The upper portion of water tank is equipped with steam storehouse (6), is equipped with catch water in the steam storehouse, and the upper portion of steam storehouse is equipped with steam outlet pipe (8) the rear portion downside of water tank is equipped with incrustation scale discharge port (19), and the support height of installing in the water tank is 2 ~ 8cm for it is convenient for clear up to hold incrustation scale deposit. A water level control box (16) is arranged on the right side of the steam bin, and a water level sensor (15) is arranged on the water level control box.

When the vertical heat exchange plate heating device operates, the gas switch is turned on, gas is sprayed into the combustion chamber in the vertical heat exchange plate through the gas distributor (2) and the gas inlet (3), and the gas in the combustion chamber in the vertical heat exchange plate is ignited through the igniter (4) to heat the vertical heat exchange plate. The combustion chamber channel in the vertical heat exchange plate is composed of a plurality of S-shaped bends, so that the stroke of combustion gas in the combustion chamber is increased, and the heat efficiency is improved. The generated steam rises to the steam bin, and is connected to gas production or living equipment through a steam outlet pipe (8) after steam-water separation.

In order to ensure the opening, closing and water supply of tap water in the operation process, the invention is provided with a set of automatic control device (7), the water level in the water tank (25) continuously drops along with the continuous output of steam, when the water level drops to a low water level, a water level sensor (15) transmits a signal to the automatic control device (7), the automatic control device opens a tap water switch (18), tap water enters the lower part of a waste heat utilization device (13) through a water inlet pipe (14), is heated by the waste heat of flue gas after combustion, is sent into a water level control box (16) through a hot water pipe (12), and then is replenished with the water level to the water tank (25) through a bent pipe (17) at the lower part of the water level control box; if the tap water is cut off and the low water level occurs, the gas steam generator automatically stops working under the control of the automatic control device (7), so that the phenomenon that the heating element is damaged or even burnt out due to dry combustion is prevented. When the water level rises to the designed water level, the water level sensor (15) transmits a signal to the automatic control device (7), and the automatic control device closes the tap water switch to stop water supplement; meanwhile, the burner in the furnace is continuously heated to continuously generate steam for production and living.

Claims (4)

1. The utility model provides an energy-saving gas steam generator, includes combustor, steam storehouse, water level control case, heat transfer board, is used for burning heat transfer, steam generation, steam storage device, characterized by that constitutes by the vertical heat transfer board of polylith, smoke box, flue pipe, waste heat seat, water tank and steam storehouse: each vertical heat exchange plate corresponds to and is welded with the upper and lower air inlet holes on the panel through the upper and lower fire inlet holes on the front part of the vertical heat exchange plate, the rear outlet of each vertical heat exchange plate is welded with the smoke box, the upper part of the smoke box is welded with a plurality of flue pipes, the other end of each flue pipe is welded on the waste heat seat, and the vertical heat exchange plates, the smoke box, the flue pipes and the waste heat seat are welded and then are arranged on a bracket of the water tank; the steam bin is arranged at the upper part of the water tank, a steam-water separation device is arranged in the steam bin, and a steam outlet pipe is arranged at the upper part of the steam bin; a water level control box is arranged on the right side of the steam bin, and a water level sensor is arranged on the water level control box.

2. The energy saving gas steam generator as set forth in claim 1, wherein: the outlet at the rear part of the vertical heat exchange plate is communicated with the smoke box, the smoke box is communicated with the smoke pipe at the upper part, the smoke pipe is communicated with the waste heat seat, and the waste heat seat is communicated with the waste heat utilization device after being welded together.

3. The energy saving gas steam generator as set forth in claim 1, wherein: the vertical heat exchange plate is perpendicular to the bottom plane of the water tank when being installed.

4. The energy saving gas steam generator as set forth in claim 1, wherein: the height of the support arranged in the water tank is 2-8 cm.

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