Vertical steam generator

Abstract

A vertical steam generator relates to a device for producing steam. The vertical steam generator is mainly designed for solving the problem that an existing vertical steam generator is low in heat utilization rate. The boiler comprises a boiler body, a heat exchange chamber and a combustion chamber are arranged in the boiler body, a coal filling opening is formed in the boiler body at the top of the combustion chamber, and an ash removal door, a scale removal opening and a fire observation door are sequentially arranged on the boiler body on the side face of the combustion chamber from bottom to top. And the end part of the water-cooling fire grate in the middle in the combustion chamber is communicated with the interior of the heat exchange chamber. A lower smoke box, a middle smoke box and an upper smoke box are arranged in the heat exchange chamber, a vertical partition plate is arranged in the lower smoke box, a smoke pipe A is arranged between the lower smoke box and the middle smoke box on the left side of the vertical partition plate, a smoke pipe B is arranged between the lower smoke box and the middle smoke box on the right side of the vertical partition plate, and a smoke pipe C is arranged between the lower smoke box and the upper smoke box on the right side of the vertical partition plate. A water inlet is formed in the bottom of the boiler body, a steam outlet and a chimney are arranged on the boiler body, and the chimney is communicated with the upper smoke box; and the lower smoke box is communicated with the combustion chamber. The inner wall of each smoke tube is provided with a spiral groove, and the outer wall of each smoke tube is fixedly provided with fins. The device has the advantage of high heat exchange efficiency.

Description

Technical field:

[0001] The utility model relates to a device for producing steam, in particular to a vertical steam generator. Background technology:

[0002] The existing vertical steam generator includes a furnace body, which is equipped with multiple smoke pipes and a water inlet. The high-temperature flue gas generated by fuel combustion enters the chimney through the smoke pipes. The steam generated by the water in the furnace is heated and discharged from the steam outlet at the top of the furnace body and enters the external steam pipe.

[0003] The disadvantage is that the smoke pipe is a light pipe, the heat exchange area with water is small, the heat utilization rate is low, and energy is wasted. Summary of the invention:

[0004] The technical problem to be solved by the utility model is to provide a vertical steam generator which has high heat utilization rate and can save energy.

[0005] The purpose of the utility model is achieved as follows: it includes a furnace body, a heat exchange chamber and a combustion chamber are provided in the furnace body, the heat exchange chamber is on the right side of the combustion chamber, a coal filling port is provided on the furnace body at the top of the combustion chamber, and an ash cleaning door, a scale cleaning port and a fire viewing door are provided on the furnace body on the side of the combustion chamber from bottom to top; a water-cooled grate is provided in the middle of the combustion chamber, the water-cooled grate is fixed on the wall of the furnace body, and the end of the water-cooled grate is communicated with the interior of the heat exchange chamber.

[0006] A lower smoke box is provided at the bottom of the heat exchange chamber, a middle smoke box is provided in the middle, and an upper smoke box is provided at the upper part. Each of the smoke boxes is fixedly connected to the inner wall of the furnace body. A vertical partition is provided in the lower smoke box, which divides the lower smoke box into two spaces on the left and right. Several smoke pipes A are connected between the lower smoke box and the middle smoke box on the left side of the vertical partition, several smoke pipes B are connected between the lower smoke box and the middle smoke box on the right side of the vertical partition, and several smoke pipes C are connected between the lower smoke box and the upper smoke box on the right side of the vertical partition.

[0007] The structures of the smoke tube A, smoke tube B and smoke tube C are the same.

[0008] The furnace body is provided with ash cleaning doors at positions corresponding to the upper smoke box, the middle smoke box and the lower smoke box. A water inlet is also provided at the bottom of the furnace body at the heat exchange chamber. A steam outlet and a chimney are provided on the furnace body at the top of the heat exchange chamber. The chimney is connected to the upper smoke box; the lower smoke box is connected to the combustion chamber.

[0009] The inner wall of each smoke tube is provided with a spiral groove, and the outer wall of the smoke tube is fixed with a fin.

[0010] There is also a pressure gauge on the top of the furnace body.

[0011] The advantages of the utility model are as follows: water enters the heat exchange chamber from the water inlet, and the high-temperature flue gas generated by the combustion of fuel in the combustion chamber enters the middle smoke box through the lower smoke box and smoke pipe A on the left side of the vertical partition, then enters the lower smoke box on the right side of the vertical partition through the smoke pipe B, then enters the upper smoke box through the smoke pipe C, and finally is discharged through the chimney connected to the upper smoke box. The high-temperature flue gas exchanges heat with the water during the flow process, and the water is heated to generate steam, which is discharged from the steam outlet.

[0012] Since the inner wall of the smoke pipe is provided with spiral grooves, the travel time of the smoke is increased, and the outer wall of the smoke pipe is provided with fins, which increases the heat exchange area, thereby improving the heat exchange efficiency, achieving good heat exchange effects, and saving energy. Description of the drawings:

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the smoke tube in the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the smoke tube in the utility model. Specific implementation method:

[0016] The following combination Figure 1-3 Further explain the utility model;

[0017] It includes a furnace body 1, in which a heat exchange chamber 2 and a combustion chamber 3 are arranged. The heat exchange chamber is on the right side of the combustion chamber. A coal filling port 4 is provided on the furnace body at the top of the combustion chamber. A dust cleaning door 5, a scale cleaning port 6, and a fire viewing door 7 are provided on the furnace body on the side of the combustion chamber from bottom to top. A water-cooled grate 8 is provided in the middle of the combustion chamber. The water-cooled grate is fixed on the wall of the furnace body, and the end of the water-cooled grate is connected to the interior of the heat exchange chamber.

[0018] A lower smoke box 9 is provided at the bottom of the heat exchange chamber, a middle smoke box 10 is provided in the middle, and an upper smoke box 11 is provided at the upper part. Each of the smoke boxes is fixedly connected to the inner wall of the furnace body. A vertical partition 12 is provided in the lower smoke box, which divides the lower smoke box into two spaces on the left and right. Several smoke pipes A13 are connected between the lower smoke box and the middle smoke box on the left side of the vertical partition, several smoke pipes B14 are connected between the lower smoke box and the middle smoke box on the right side of the vertical partition, and several smoke pipes C15 are connected between the lower smoke box and the upper smoke box on the right side of the vertical partition.

[0019] The structures of the smoke tube A, smoke tube B and smoke tube C are the same.

[0020] The furnace body is provided with ash cleaning doors at positions corresponding to the upper smoke box, the middle smoke box and the lower smoke box. A water inlet 16 is also provided at the bottom of the furnace body at the heat exchange chamber. A steam outlet 17 and a chimney 18 are provided on the furnace body at the top of the heat exchange chamber. The chimney is connected to the upper smoke box; the lower smoke box is connected to the combustion chamber.

[0021] The inner wall of each smoke tube is provided with a spiral groove 20, and the outer wall of the smoke tube is fixed with a fin 21.

[0022] A pressure gauge 19 is also provided on the top of the furnace body.

[0023] Water enters the heat exchange chamber from the water inlet. The high-temperature flue gas generated by the combustion of fuel in the combustion chamber enters the middle smoke box through the lower smoke box and smoke pipe A on the left side of the vertical partition, then enters the lower smoke box on the right side of the vertical partition through smoke pipe B, and then enters the upper smoke box through smoke pipe C, and finally is discharged through the chimney connected to the upper smoke box. The high-temperature flue gas exchanges heat with the water during the flow process, and the water is heated to generate steam, which is discharged from the steam outlet.

[0024] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A vertical steam generator comprising a furnace body (1), a heat exchange chamber (2) and a combustion chamber (3) being provided in the furnace body, wherein the heat exchange chamber is on the right side of the combustion chamber, and a coal filling port (4) is provided on the furnace body at the top of the combustion chamber; wherein: A lower smoke box (9) is provided at the bottom of the heat exchange chamber, a middle smoke box (10) is provided in the middle, and an upper smoke box (11) is provided at the upper part. Each of the smoke boxes is fixedly connected to the inner wall of the furnace body. A vertical partition (12) is provided in the lower smoke box, and the vertical partition divides the lower smoke box into two left and right spaces. A plurality of smoke pipes A (13) are connected between the lower smoke box and the middle smoke box on the left side of the vertical partition, a plurality of smoke pipes B (14) are connected between the lower smoke box and the middle smoke box on the right side of the vertical partition, and a plurality of smoke pipes C (15) are connected between the lower smoke box and the upper smoke box on the right side of the vertical partition. A water inlet (16) is provided at the bottom of the furnace body at the heat exchange chamber, and a steam outlet (17) and a chimney (18) are provided on the furnace body at the top of the heat exchange chamber. The chimney is connected to the upper smoke box; the lower smoke box is connected to the combustion chamber. The structures of the smoke tube A, smoke tube B and smoke tube C are the same. The inner wall of each smoke tube is provided with a spiral groove (20), and the outer wall of the smoke tube is fixed with a fin (21).

2. The vertical steam generator according to claim 1, characterized in that: The furnace body on the side of the combustion chamber is provided with a ash cleaning door (5), a dirt cleaning port (6), and a fire viewing door (7) in sequence from bottom to top; a water-cooling grate (8) is provided in the middle of the combustion chamber, the water-cooling grate is fixed on the inner wall of the furnace body, and the end of the water-cooling grate is connected to the interior of the heat exchange chamber.

3. The vertical steam generator according to claim 1 or 2, characterized in that: The furnace body is provided with ash cleaning doors at positions corresponding to the upper smoke box, the middle smoke box and the lower smoke box.

4. The vertical steam generator according to claim 1 or 2, characterized in that: A pressure gauge (19) is also provided on the top of the furnace body.

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