Gas steam superheater device

Abstract

The utility model discloses a gas steam superheater device which comprises a heat insulation hearth, a membrane wall heating surface channel and a smoke outlet, a burner is arranged in the heat insulation hearth, a water preheater I and a superheater are arranged in the membrane wall heating surface channel, the water preheater I is arranged on the lower portion in the membrane wall heating surface channel in front of the superheater, and the superheater is arranged on the lower portion in the membrane wall heating surface channel. And a water preheater II is arranged between the upper part of the exterior of the membrane wall heating surface channel and the flue gas outlet. Original byproduct steam is heated into superheated steam through the superheating furnace, so that the steam quality is improved, and the energy utilization rate is increased; by arranging the membrane wall light pipe laying furnace wall, the overall weight of the superheater is reduced, the equipment cost of the superheater is reduced, and installation is convenient; meanwhile, the water preheater is arranged in front of the superheater, so that the hidden danger of pipe explosion during superheater operation is solved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of superheating furnaces, in particular to a gas steam superheating furnace device. Background Art

[0002] As various industries pay more and more attention to energy conservation and emission reduction, users have higher and higher requirements for full utilization of energy, and the application of steam superheater is becoming more and more extensive. Steam superheater is arranged behind the by-product waste steam of various industries to heat the by-product waste steam into superheated steam, which is used for other production devices or to drive steam turbine to generate electricity, thereby improving the energy utilization rate of the entire plant area, reducing the energy consumption of the entire plant area, and making excellent contributions to national energy conservation and emission reduction. Utility Model Content

[0003] In order to solve the above technical problems, the utility model designs a gas steam superheating furnace device, which solves the problem that the temperature of by-product waste steam is too low due to process limitations or other reasons, the direct use of waste steam has low thermal efficiency or direct discharge wastes energy.

[0004] The utility model adopts the following technical solutions:

[0005] A gas steam superheater device comprises an insulated furnace, a membrane wall heating surface channel and a flue gas outlet, wherein a burner is arranged in the insulated furnace, and the membrane wall heating surface channel comprises a water preheater I and a superheater, wherein the water preheater I is arranged at the lower part of the membrane wall heating surface channel in front of the superheater, and the water preheater II is arranged between the upper part of the membrane wall heating surface channel and the flue gas outlet.

[0006] Preferably, the insulated furnace is composed of multiple layers of refractory material layers, insulation material layers and thermal insulation material layers.

[0007] Preferably, the membrane wall heating surface channel is a square full membrane wall water cooling structure.

[0008] Preferably, the membrane wall heating surface channel is surrounded by a membrane water-cooled wall made of flat steel and seamless steel pipes processed by membrane flow.

[0009] Preferably, the smoke outlet includes a smoke baffle and an expansion joint.

[0010] The beneficial effects of the utility model are as follows: (1) the utility model heats the original by-product steam into superheated steam through the superheater, thereby increasing the steam quality and improving the energy utilization rate; (2) by arranging a membrane-wall light-weight pipe-laying furnace wall, the overall weight of the superheater is reduced, the equipment cost of the superheater is reduced, and the installation is convenient; (3) a water preheater is arranged in front of the superheater, which solves the risk of pipe bursting during the operation of the superheater and increases the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the utility model;

[0012] Figure 2 yes Figure 1 Left view of

[0013] In the figure: 1. Insulated furnace, 2. Membrane wall heating surface channel, 3. Flue gas outlet, 4. Burner, 5. Water preheater I, 6. Superheater, 7. Water preheater II, 8. Flue gas baffle, 9. Expansion joint. DETAILED DESCRIPTION

[0014] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0015] Example: Figure 1-Figure 2 As shown, a gas steam superheater device includes an insulated furnace 1, a membrane wall heating surface channel 2 and a flue gas outlet 3.

[0016] The insulated furnace 1 includes a burner 4, which is composed of multiple layers of refractory material, insulation material, and thermal insulation material. The fuel gas enters the burner through the air port and fuel port of the burner and burns in the insulated furnace to provide a heat source for subsequent steam heating.

[0017] The membrane wall heating surface channel 2 is a square full membrane wall water-cooled structure, which is surrounded by membrane water-cooled walls formed by flat steel and seamless steel pipes processed by membrane flow. The membrane wall heating surface channel 2 contains a water preheater I5 and a superheater 6. The water preheater I is arranged at the bottom of the membrane wall heating surface channel in front of the superheater. The top of the membrane wall heating surface channel 2 contains a water preheater II7. After sufficient combustion in the insulated furnace 1, the high-temperature flue gas enters the membrane wall heating surface channel 2 from the smoke outlet at the top of the insulated furnace 1, and then flows through the water preheater I5, superheater 6 and water preheater II7 above the membrane wall heating surface channel arranged in the membrane wall heating surface channel 2 in turn. The low-temperature flue gas after sufficient heat exchange flows into the flue gas outlet 3.

[0018] The flue gas outlet 3 includes a flue gas damper 8 and an expansion joint 9 to ensure that the superheater can expand upward as a whole. The low-temperature flue gas flowing into the flue gas outlet 3 passes through the flue gas damper 8 and the expansion joint 9 in sequence and is finally discharged into the chimney of the owner's factory area.

[0019] The utility model heats the original by-product steam into superheated steam through the superheater, thereby increasing the steam quality and improving the energy utilization rate; by arranging a membrane-wall light-weight pipe-laying furnace wall, the overall weight of the superheater is reduced, the equipment cost of the superheater is reduced, and the installation is convenient; at the same time, a water preheater is arranged in front of the superheater, which solves the hidden danger of pipe bursting during the operation of the superheater and increases the service life of the equipment.

[0020] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A gas steam superheater device, characterized in that: The invention comprises an insulated furnace (1), a membrane wall heating surface channel (2) and a flue gas outlet (3). A burner (4) is arranged in the insulated furnace (1). The membrane wall heating surface channel (2) contains a water preheater I (5) and a superheater (6). The water preheater I (5) is arranged at the lower part of the membrane wall heating surface channel (2) in front of the superheater (6). A water preheater II (7) is arranged between the upper part of the membrane wall heating surface channel (2) and the flue gas outlet (3).

2. A gas steam superheater device according to claim 1, characterized in that: The insulated furnace (1) is composed of multiple layers of refractory material layers, heat insulating material layers and thermal insulation material layers.

3. A gas steam superheater device according to claim 1, characterized in that: The membrane wall heating surface channel (2) is a square full membrane wall water cooling structure.

4. A gas-fired steam superheater device according to claim 3, characterized in that: The membrane wall heating surface channel (2) is surrounded by a membrane water-cooled wall formed by flat steel and seamless steel pipes processed by membrane flow.

5. A gas-fired steam superheater device according to claim 1, characterized in that: The smoke outlet (3) comprises a smoke baffle (8) and an expansion joint (9).

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