A fully water-immersed boiler furnace structure

Abstract

The present invention is applicable to a boiler furnace and provides a fully water-immersed boiler furnace structure, which includes a boiler cylinder body. The bottom inside the boiler cylinder body is fixedly connected with a bottom partition plate through a first bolt; the upper surface of the bottom partition plate is fixedly provided with a furnace cylinder body through a second bolt; the top end inside the boiler cylinder body is fixedly provided with a top sealing plate through a third bolt; heat exchange tubes are annularly arranged between the bottom of the top sealing plate and the top end of the furnace cylinder body. By canceling the original furnace bottom casting material structure, the overall firmness of the boiler is increased. Moreover, the heat at the bottom of the furnace cylinder body is dissipated and exchanges heat with water, increasing the overall radiation heating surface of the boiler and improving the heating efficiency of the boiler. At the same time, under the action of the diversion tube on the surface of the bottom partition plate, water flows from the side with sparse openings to the side with dense openings, increasing the fluidity of the boiler feed water and taking away the bubbles formed at the bottom of the furnace, preventing film boiling from having an adverse impact on the furnace bottom and meeting the actual use requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of boiler furnaces, and more specifically, it relates to a fully water-immersed boiler furnace structure. Background Art

[0002] The furnaces of traditional cylindrical boilers mostly adopt membrane wall structures or cylindrical structures, and the furnace bottom is made of refractory castable to isolate the high temperature at the furnace bottom. Among them, the furnace barrel wall and the upper tube sheet of the furnace are radiant heating surfaces, and the furnace bottom casting is an insulating surface. The furnace bottom in the form of refractory castable is complex to manufacture, cumbersome to install, has high requirements for the refractivity of the casting material, and has poor adhesion between the casting material and the furnace wall structure. The casting material is prone to detachment during the turning process of the boiler. In addition, the temperature of the furnace bottom is very high, but the bottom surface is not arranged as a heating surface, resulting in waste of this part of the area and being unfavorable for heat absorption and utilization. Summary of the Invention

[0003] Aiming at the deficiencies existing in the prior art, the purpose of the present invention is to provide a fully water-immersed boiler furnace that can enhance heat exchange and improve the furnace structure.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A fully water-immersed boiler furnace structure includes a boiler cylinder body. The bottom inside the boiler cylinder body is fixedly connected with a bottom partition plate through a first bolt; a furnace cylinder body is fixedly arranged on the upper surface of the bottom partition plate through a second bolt; a top sealing plate is fixedly arranged at the top end inside the boiler cylinder body through a third bolt; heat exchange tubes are annularly arranged between the bottom of the top sealing plate and the top end of the furnace cylinder body; a plurality of diversion tubes are arranged in an annular structure between the upper surface of the bottom partition plate and the inner wall of the boiler cylinder body on the outer side of the furnace cylinder body; the spacing on one side of the plurality of diversion tubes is sparse, and the spacing on the other side is dense; the aperture of the plurality of diversion tubes gradually increases from the sparse side to the dense side.

[0006] The present invention is further arranged as follows: The circumferential side surface of the bottom end of the boiler cylinder body and the bottom of the bottom partition plate are respectively communicated with a water inlet end pipe and a drainage end head.

[0007] The present invention is further arranged as follows: The circumferential side surface of the boiler cylinder body and the top of the bottom partition plate are communicated with a burner installation pipe seat; the end of the burner installation pipe seat extends into the boiler cylinder body.

[0008] The present invention is further arranged as follows: First installation ears matching with the first bolt are annularly arranged on the upper and lower surface edges of the bottom partition plate; a first annular card slot is arranged on the outer edge of the bottom partition plate; a first sealing ring is sleeved on the outer edge of the bottom partition plate through the first annular card slot; a placement groove matching with the furnace cylinder body is arranged at the center position of the upper surface of the bottom partition plate.

[0009] The present invention is further configured such that: a second mounting ear adapted to the second bolt is annularly and arrayedly provided on the circumferential side surface of the bottom end of the furnace cylinder body; a first end joint connected to the end of the heat exchange tube is annularly and arrayedly provided at the top end of the furnace cylinder body.

[0010] The present invention is further configured such that: a connection pipe opening communicating with the end of the burner installation pipe seat is provided on the outer circumferential side surface of the furnace cylinder body.

[0011] The present invention is further configured such that: a third mounting ear adapted to the third bolt is annularly and arrayedly provided on the edge of the upper surface of the top sealing plate; a water outlet conduit is communicated at the center position of the upper surface of the top sealing plate.

[0012] The present invention is further configured such that: a second end joint adapted to the heat exchange tube is annularly and arrayedly provided on the lower surface of the top sealing plate; a second annular clamping groove is formed on the outer edge of the top sealing plate; the top sealing plate is sleeved with a second sealing ring through the second annular clamping groove.

[0013] The present invention is further configured such that: the whole heat exchange tube is of a serpentine structure.

[0014] The advantages of the present invention are that the original furnace bottom castable structure is cancelled, the firmness of the whole boiler is increased, and the heat at the bottom of the furnace cylinder body is dissipated and exchanges heat with water, increasing the heat receiving surface of the whole boiler radiation and improving the heating efficiency of the boiler. At the same time, under the action of the diversion pipe on the bottom partition plate, water flows from the side with sparse openings to the side with dense openings, increasing the fluidity of the boiler feed water and taking away the bubbles formed on the bottom surface of the furnace, preventing the film boiling from causing adverse effects on the furnace bottom and meeting the actual use requirements. Description of the Drawings

[0015] Figure 1 is a structural schematic diagram of a full water-immersed boiler furnace structure of the present invention.

[0016] Figure 2 is a sectional structural schematic diagram of a full water-immersed boiler furnace structure of the present invention.

[0017] Figure 3 is a structural schematic diagram of the boiler cylinder body of the present invention.

[0018] Figure 4 is a structural schematic diagram of the bottom partition plate of the present invention.

[0019] Figure 5 is an end face structural schematic diagram of the bottom partition plate of the present invention.

[0020] Figure 6 is a structural schematic diagram of the furnace cylinder body of the present invention.

[0021] Figure 7 is a structural schematic diagram of the top sealing plate of the present invention.

[0022] Figure 8 It is a schematic structural diagram of a heat exchange tube.

[0023] In the figure: 1. Boiler cylinder; 2. First bolt; 3. Bottom partition plate; 4. Second bolt; 5. Furnace cylinder; 6. Third bolt; 7. Top sealing plate; 8. Heat exchange tube; 9. First sealing ring; 10. Second sealing ring; 101. Water inlet end pipe; 102. Drainage end; 103. Burner installation pipe seat; 301. Diversion pipe; 302. First installation ear; 303. First annular card slot; 304. Placing groove; 501. Second installation ear; 502. Connecting pipe orifice; 503. First end joint; 701. Third installation ear; 702. Water outlet conduit; 703. Second end joint; 704. Second annular card slot. Specific embodiments

[0024] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0025] It should be pointed out that unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs.

[0026] In the present invention, unless otherwise stated, the orientations such as "upper, lower" are usually in the directions shown in the drawings, or in the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left, right" are usually in the left and right shown in the drawings; "inside, outside" refer to the inside and outside relative to the contours of the respective components, but the above orientation terms are not used to limit the present invention.

[0027] Embodiment

[0028] Please refer to Figure 1-8 , the present invention provides the following technical solutions:

[0029] Specifically, it refers to a fully water-immersed boiler furnace structure, including a boiler cylinder body 1. At the bottom inside the boiler cylinder body 1, a bottom partition plate 3 is fixedly connected through a first bolt 2; at the circumferential side of the bottom end of the boiler cylinder body 1 and at the bottom of the bottom partition plate 3, a water inlet end pipe 101 and a drainage end head 102 are respectively communicated; at the circumferential side of the boiler cylinder body 1 and at the top of the bottom partition plate 3, a burner installation pipe seat 103 is communicated; the end of the burner installation pipe seat 103 extends into the inside of the boiler cylinder body 1; on the upper surface of the bottom partition plate 3 and between the outer side of the furnace cylinder body 5 and the inner wall of the boiler cylinder body 1, a plurality of diversion pipes 301 are arranged in an annular structure; the spacing on one side of the plurality of diversion pipes 301 is sparse, and the spacing on the other side is dense; the aperture of the plurality of diversion pipes 301 gradually increases from the sparse side to the dense side; on the upper and lower surface edges of the bottom partition plate 3, first mounting ears 302 matching with the first bolt 2 are annularly arranged; on the outer edge of the bottom partition plate 3, a first annular clamping groove 303 is opened; a first sealing ring 9 is sleeved on the outer edge of the bottom partition plate 3 through the first annular clamping groove 303; on the upper surface of the bottom partition plate 3, a furnace cylinder body 5 is fixedly arranged through a second bolt 4; at the center position of the upper surface of the bottom partition plate 3, a placement groove 304 matching with the furnace cylinder body 5 is opened; at the circumferential side of the bottom end of the furnace cylinder body 5, second mounting ears 501 matching with the second bolt 4 are annularly arranged; on the outer circumferential side of the furnace cylinder body 5, a connection pipe orifice 502 communicated with the end of the burner installation pipe seat 103 is arranged; at the inner top end of the boiler cylinder body 1, a top sealing plate 7 is fixedly arranged through a third bolt 6; on the upper surface edge of the top sealing plate 7, third mounting ears 701 matching with the third bolt 6 are annularly arranged; at the center position of the upper surface of the top sealing plate 7, a water outlet conduit 702 is communicated; between the bottom of the top sealing plate 7 and the top end of the furnace cylinder body 5, heat exchange pipes 8 are annularly arranged; the whole heat exchange pipe 8 is in a serpentine structure; at the top end of the furnace cylinder body 5, first end joints 503 connected with the ends of the heat exchange pipes 8 are annularly arranged; on the lower surface of the top sealing plate 7, second end joints 703 matching with the heat exchange pipes 8 are annularly arranged; on the outer edge of the top sealing plate 7, a second annular clamping groove 704 is opened; the top sealing plate 7 is sleeved with a second sealing ring 10 through the second annular clamping groove 704.

[0030] The working principle of a fully water-immersed boiler furnace structure provided by the present invention is as follows:

[0031] The water of the boiler enters between the bottom of the boiler cylinder 1 and the bottom partition 3 from the water inlet end pipe 101. Through the structural design of the bottom partition 3, the original furnace bottom casting material structure is eliminated, and the overall firmness of the boiler is increased; due to the irregular arrangement of multiple guide pipes 301 on the surface of the bottom partition 3, and the intervals and diameters of the multiple guide pipes 301 from one side of the water inlet end pipe 101 to the other side gradually increase, most of the water flows from the side with a smaller diameter to the side with a larger diameter. At this time, the bottom of the furnace cylinder 5 is filled with directional flowing water. After the burner fixed by the burner mounting pipe seat 103 is burned, the sides of the entire furnace cylinder 5 and its top and bottom are radiating The heating surface increases the overall radiation heating surface of the boiler and improves the heating efficiency of the boiler. The furnace barrel 5 conducts heat through the bottom baffle 3 and exchanges heat with the water at the bottom of the boiler barrel 1, so that the water at the bottom of the boiler barrel 1 boils and generates bubbles. The bubbles flow through the heated water and are carried out of the bottom of the boiler barrel 1 through the guide pipe 301 to prevent film boiling from causing adverse effects on the furnace bottom. The water is guided upward from the bottom of the boiler barrel 1 through the guide pipe 301, and after radiation heat exchange through the furnace barrel 5 and multiple heat exchange tubes 8, it is discharged from the water outlet conduit 702. When the boiler barrel 1 is inspected and maintained, the water inside the boiler barrel 1 can be drained through the drainage terminal 102.

[0032] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0035] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

[0036] The above is only the preferred implementation manner of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A fully water-immersed boiler furnace structure, characterized in that: It includes a boiler cylinder body (1), and a bottom partition plate (3) is fixedly connected to the inner bottom of the boiler cylinder body (1) through a first bolt (2); a furnace cylinder body (5) is fixedly arranged on the upper surface of the bottom partition plate (3) through a second bolt (4); A top sealing plate (7) is fixedly arranged at the inner top end of the boiler cylinder body (1) through a third bolt (6); heat exchange tubes (8) are annularly arranged between the bottom of the top sealing plate (7) and the top end of the furnace cylinder body (5); A plurality of diversion tubes (301) are arranged in an annular structure on the upper surface of the bottom partition plate (3) and between the outer side of the furnace cylinder body (5) and the inner wall of the boiler cylinder body (1); the spacing on one side of the plurality of diversion tubes (301) is sparse, and the spacing on the other side is dense; the aperture of the plurality of diversion tubes (301) gradually increases from the sparse side to the dense side; An inlet end pipe (101) is communicated with the circumferential side surface at the bottom end of the boiler cylinder body (1) and is located at the bottom of the bottom partition plate (3); The circumferential side surface, top and bottom of the furnace cylinder body (5) are all radiant heating surfaces.

2. The fully water-immersed boiler furnace structure according to claim 1, characterized in that: A drain end (102) is communicated with the circumferential side surface at the bottom end of the boiler cylinder body (1) and is located at the bottom of the bottom partition plate (3); 3. The fully water-immersed boiler furnace structure according to claim 1, characterized in that: A burner installation pipe seat (103) is communicated with the circumferential side surface of the boiler cylinder body (1) and is located at the top of the bottom partition plate (3); the end of the burner installation pipe seat (103) extends into the boiler cylinder body (1).

4. The fully water-immersed boiler furnace structure according to claim 1, characterized in that: First mounting ears (302) matching with the first bolts (2) are annularly arranged on the upper and lower surface edges of the bottom partition plate (3); A first annular clamping groove (303) is opened on the outer edge of the bottom partition plate (3); a first sealing ring (9) is sleeved on the outer edge of the bottom partition plate (3) through the first annular clamping groove (303); A placement groove (304) matching with the furnace cylinder body (5) is opened at the center position of the upper surface of the bottom partition plate (3).

5. The fully water-immersed boiler furnace structure according to claim 1, characterized in that: Second mounting ears (501) matching with the second bolts (4) are annularly arranged on the circumferential side surface at the bottom end of the furnace cylinder body (5); First end joints (503) for connecting with the ends of the heat exchange tubes (8) are annularly arranged at the top end of the furnace cylinder body (5).

6. The fully water-immersed boiler furnace structure according to claim 3, characterized in that: A connecting pipe orifice (502) communicating with the end of the burner installation pipe seat (103) is arranged on the outer circumferential side surface of the furnace cylinder body (5).

7. The fully water-immersed boiler furnace structure according to claim 1, characterized in that: Third mounting ears (701) matching with the third bolts (6) are annularly arranged on the upper surface edge of the top sealing plate (7); An outlet conduit (702) is communicated with the center position of the upper surface of the top sealing plate (7).

8. A fully water-immersed boiler furnace structure according to claim 1, characterized in that: A second end joint (703) matching the heat exchange tube (8) is arranged in an annular array on the lower surface of the top sealing plate (7); A second annular clamping groove (704) is formed on the outer edge of the top sealing plate (7); a second sealing ring (10) is sleeved on the top sealing plate (7) through the second annular clamping groove (704).

9. A fully water-immersed boiler furnace structure according to claim 1, characterized in that: The heat exchange tube (8) is integrally of a serpentine structure.

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