CN219995307U - Three-pressure type natural circulation waste heat boiler with H-shaped finned tubes - Google Patents
Three-pressure type natural circulation waste heat boiler with H-shaped finned tubes Download PDFInfo
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- CN219995307U CN219995307U CN202320696471.5U CN202320696471U CN219995307U CN 219995307 U CN219995307 U CN 219995307U CN 202320696471 U CN202320696471 U CN 202320696471U CN 219995307 U CN219995307 U CN 219995307U
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- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003546 flue gas Substances 0.000 claims abstract description 15
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 12
- 229920000742 Cotton Polymers 0.000 claims abstract description 8
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims abstract description 8
- 238000004321 preservation Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims 5
- 239000000446 fuel Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
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- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model discloses an H-shaped finned tube three-pressure natural circulation waste heat boiler, which comprises a boiler body, a serpentine economizer, a first evaporator, a second evaporator, a reheater, heat exchange components, a high-purity heat preservation cotton module, a circulating water pump, a steam drum, a manhole, a chimney and a flue gas inlet, wherein the boiler body is provided with a heat exchange tube; the snakelike economizer is connected with the steam drum through a water pipe; the steam drum is connected with the circulating water pump through a descending pipe, the circulating water pump is connected with the second evaporator and the first evaporator through a water pipe, the second evaporator is connected with the steam drum through a steam conveying pipe, the first evaporator is connected with the steam drum through a steam conveying pipe, the steam drum is connected with the reheater through a saturated steam pipeline, and the reheater is connected with a superheated steam pipeline. The utility model has compact design structure, reduces the weight and volume of equipment, prolongs the service life of the equipment, and does not need the extra fuel consumption of the system, thereby achieving the purposes of high efficiency and energy saving.
Description
Technical Field
The utility model relates to an H-shaped finned tube three-pressure natural circulation waste heat boiler.
Background
The application number is 2011204307129, the patent name is natural circulation waste heat boiler, and the concrete contents are: the economizer is connected with the steam drum through a water supply pipe; the steam drum is connected with the front evaporator through a down pipe, the front evaporator is provided with an inlet header, a front evaporator pipe bundle and an outlet header, the front evaporator pipe bundle and the outlet header are obliquely arranged, and the outlet header is connected with the steam drum through a rising pipe; the steam drum is connected with a rear evaporator through a down pipe, the rear evaporator is provided with an inlet header, a rear evaporator pipe bundle and an outlet header, the rear evaporator pipe bundle and the outlet header are obliquely arranged, and the outlet header is connected with the steam drum through a rising pipe; the steam drum is connected with the superheater through a steam pipe.
However, the waste heat boiler has the conditions of larger heat loss and equipment expansion, larger weight and volume of the whole equipment, small heating area, easy ash accumulation, easy equipment damage and the like.
Disclosure of Invention
The utility model aims to provide an H-shaped finned tube three-pressure type natural circulation waste heat boiler, which can overcome the defects of the existing waste heat boiler and solve the problems of larger heat loss and equipment expansion of the waste heat boiler, larger weight and volume of the whole equipment, small heated area, easiness in ash deposition, high energy consumption, easiness in equipment damage and the like.
The utility model comprises the following specific contents:
an H-shaped finned tube three-pressure natural circulation waste heat boiler comprises a boiler body, a steam drum, a serpentine economizer, a first evaporator, a second evaporator, a reheater, a circulating water pump, heat exchange components and parts and a high-purity heat preservation cotton module;
the heat exchange components in the serpentine economizer, the first evaporator, the second evaporator and the reheater are H-shaped finned tubes;
the high-purity heat-preservation cotton modules are uniformly distributed on the inner wall of the furnace body;
the steam drum and the circulating water pump are both arranged outside the furnace body, and the steam drum is arranged above the circulating water pump;
the snakelike economizer is connected with a steam drum through a water delivery pipe, the steam drum is connected with a circulating water pump through a descending pipe, the circulating water pump is connected with a second evaporator and a first evaporator through a water feeding pipe, the second evaporator is connected with the steam drum through a steam delivery pipe, the first evaporator is connected with the steam drum through the steam delivery pipe, the steam drum is connected with a reheater through a saturated steam pipeline, and the reheater is connected with a superheated steam pipeline.
The upper end of one side of the furnace body far away from the steam drum is connected with a chimney through a connecting pipeline.
And a manhole is arranged on one side of the furnace body, far away from the steam drum, and penetrates through the furnace wall.
And the bottom of the furnace body is connected with a smoke inlet.
The snakelike economizer is provided with water inlet and delivery port through the oven, and water inlet and delivery port set up in the oven outside near steam drum one end, connect inlet channel and raceway respectively.
The first evaporator passes through the furnace wall and is provided with a water inlet and a steam outlet, the water inlet and the steam outlet are arranged on the outer side of the furnace wall close to one end of the steam drum, and the water inlet pipe and the first steam delivery pipe are respectively connected.
The second evaporator passes through the furnace wall and is provided with a water inlet and a steam outlet, the water inlet and the steam outlet are arranged on the outer side of the furnace wall close to one end of the steam drum, and the water inlet pipe and the second steam delivery pipe are respectively connected.
The reheater is provided with steam inlet and steam outlet through the oven wall, steam inlet and steam outlet set up in the oven wall outside near steam drum one end, connect saturated steam pipeline and superheated steam pipeline respectively.
The utility model has the beneficial effects that:
1. the design structure is compact, the weight and the volume of the equipment are reduced, and the service life of the equipment is prolonged.
The high-purity heat-preservation cotton modules are uniformly distributed on the inner side of the furnace wall, so that the heat loss of flue gas is reduced, the expansion amount of equipment is reduced, and the service life of the equipment is prolonged. The coil pipe economizer solves the problem of difficult heat transfer with small temperature difference, large flow and low resistance between working media. The heat exchange component adopts an H-shaped finned tube, the heating surface of the H-shaped finned tube is 7-8 times of that of a light tube and 2-3 times of that of a spiral finned tube, the rigidity of the H-shaped finned tube is 3-5 times higher than that of a single-piece finned tube, and the H-shaped finned tube has a compact design structure, so that the overall weight and volume of the equipment are reduced; the H-shaped finned tube also overcomes the defects of easy ash accumulation, ash blockage and high gas resistance of the spiral finned tube, reduces ash accumulation and air flow impact, reduces abrasion and prolongs the service life.
2. High efficiency and energy saving.
The H-shaped finned tube three-pressure natural circulation waste heat boiler is characterized in that hot flue gas generated by combustion or sintering passes through the H-shaped finned tube three-pressure natural circulation waste heat boiler by means of the suction force of a chimney, the flue gas is cooled to 120 ℃ and then is smoothly discharged, and compared with a common waste heat boiler, the flue gas temperature is lower, and the heat efficiency is high; the device recovers 80% of heat in the flue gas to heat the circulating water so as to generate three types of steam with different pressures, and the system does not need to consume fuel additionally, so that the purposes of high efficiency and energy conservation are achieved.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present utility model.
FIG. 2 is a schematic view of an H-type finned tube.
Detailed Description
Embodiments of the present utility model will be further described with reference to fig. 1 and 2:
the utility model relates to an H-shaped finned tube three-pressure type natural circulation waste heat boiler working process and an implementation method, wherein the working process comprises the following steps:
an H-shaped finned tube three-pressure type natural circulation waste heat boiler comprises a boiler body 19, a serpentine economizer 2, a first evaporator 3, a second evaporator 4, a reheater 5, a circulating water pump 6, heat exchange components, a high-purity heat preservation cotton module 1, a steam drum 8, a manhole 7, a chimney 13 and a flue gas inlet 11;
the high-purity heat-preservation cotton modules 1 are uniformly distributed on the inner wall of the furnace body 19, the steam drum 8 and the circulating water pump 6 are both arranged outside the furnace body 19, the steam drum 8 is arranged above the circulating water pump 6, and the snakelike economizer 2 is connected with the steam drum 5 through the water pipe 14; the steam drum 8 is connected with the circulating water pump 6 through a down pipe 15, the circulating water pump 6 is connected with the second evaporator 4 and the first evaporator 3 through a water supply pipe 16, the second evaporator 4 is connected with the steam drum 8 through a second steam transmission pipe 17, the first evaporator 3 is connected with the steam drum 8 through a first steam transmission pipe 18, the steam drum 8 is connected with the reheater 5 through a saturated steam pipeline 10, and the reheater 5 is connected with the superheated steam pipeline 9.
The high-temperature gas enters the hearth through the flue gas inlet 11, sequentially passes through the reheater 5, the second evaporator 4, the first evaporator 3 and the serpentine pipe economizer 2, heats and vaporizes water flowing in the tube bundle, effectively utilizes the heat of high-temperature flue gas, reduces the flue gas temperature of the system to 120 ℃, and enters the chimney 13 through the connecting pipeline 20 after entering the chimney 13, and is discharged into the atmosphere through the chimney 13, which is the flowing process of the high-temperature flue gas.
The flow process of the whole system water is as follows: the water enters the serpentine economizer 2 through the water inlet pipe 12, and enters the steam drum 8 through the water pipe 14 after the temperature of the water rises in the serpentine economizer, so that the preheating requirement of the first stage is met; the water in the steam drum 8 enters the circulating water pump 6 through the down pipe 15, then enters the second evaporator 4 and the first evaporator 3 through the water feeding pipe 16 respectively to be gasified into saturated steam, and the saturated steam returns to the steam drum 8 again through the second steam conveying pipe 17 and the first steam conveying pipe 18 respectively, so that the heating of the second stage is completed; saturated steam in the steam drum 8 enters the reheater 5 through a saturated steam pipeline 10 to be changed into superheated steam, heating in the third stage is completed, and finally the superheated steam is sent to process production required by a user through a hot steam pipeline 9.
In these three stages, three different pressures are established:
1. low pressure
The water supply is heated by low-temperature flue gas through the economizer and then becomes low-pressure steam to enter the steam drum.
2. Medium pressure
The low-pressure steam from the steam drum enters the first evaporator and the second evaporator through the circulating pump, and is heated again by the flue gas to rise temperature to form medium-pressure saturated steam.
3. High pressure
The medium-pressure steam from the steam drum enters the reheater and is heated again by the initial high-temperature flue gas to form high-pressure saturated steam.
It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present utility model without the inventive step, are intended to be within the scope of the present utility model. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (8)
1. The three-pressure type natural circulation waste heat boiler with the H-shaped finned tube comprises a boiler body (19), a steam drum (8), a snakelike economizer (2), a first evaporator (3), a second evaporator (4), a reheater (5) and a circulating water pump (6), and is characterized by further comprising heat exchange components and a high-purity heat preservation cotton module (1);
the heat exchange components in the serpentine economizer (2), the first evaporator (3), the second evaporator (4) and the reheater (5) are H-shaped finned tubes;
the high-purity heat-preservation cotton modules (1) are uniformly distributed on the inner wall of the furnace body (19);
the steam drum (8) and the circulating water pump are both arranged outside the furnace body (19), and the steam drum is arranged above the circulating water pump (6);
the snakelike economizer (2) is connected steam drum (8) through raceway (14), steam drum (8) are connected circulating water pump (6) through downcomer (15), circulating water pump (6) are connected second evaporimeter (4) and first evaporimeter (3) through upper hose (16), second evaporimeter (4) are connected steam drum (8) through second steam delivery pipe (17), first evaporimeter (3) are connected steam drum (8) through first steam delivery pipe (18), steam drum (8) are connected reheat ware (5) through saturated steam pipeline (10), reheat ware (5) are connected superheated steam pipeline (9).
2. The three-pressure natural circulation waste heat boiler with the H-shaped finned tube according to claim 1, wherein the upper end of one side of the boiler body (19) far away from the steam drum (8) is connected with a chimney (13) through a connecting pipeline (20).
3. An H-type finned tube three-pressure natural circulation waste heat boiler according to claim 1, wherein the side of the boiler body (19) away from the steam drum (8) is provided with a manhole (7) penetrating the furnace wall.
4. The three-pressure natural circulation waste heat boiler with the H-shaped finned tube according to claim 1, wherein the bottom of the boiler body (19) is connected with a flue gas inlet (11).
5. The three-pressure natural circulation waste heat boiler with the H-shaped finned tube according to claim 1, wherein the serpentine economizer (2) is provided with a water inlet (2-1) and a water outlet (2-2) penetrating through the boiler wall, the water inlet (2-1) and the water outlet (2-2) are arranged on the outer side of the boiler wall close to one end of the steam drum, and are respectively connected with a water inlet pipeline (12) and a water delivery pipe (14).
6. The three-pressure natural circulation exhaust-heat boiler with the H-shaped finned tube according to claim 1, wherein the first evaporator (3) is provided with a water inlet (3-1) and a steam outlet (3-2) penetrating through the furnace wall, the water inlet (3-1) and the steam outlet (3-2) are arranged on the outer side of the furnace wall close to one end of the steam drum, and are respectively connected with a water supply pipe (16) and a first steam delivery pipe (18).
7. The three-pressure natural circulation exhaust-heat boiler with the H-shaped finned tube according to claim 1, wherein the second evaporator (4) is provided with a water inlet (4-1) and a steam outlet (4-2) penetrating through the furnace wall, the water inlet (4-1) and the steam outlet (4-2) are arranged on the outer side of the furnace wall close to one end of the steam drum, and are respectively connected with a water supply pipe (16) and a second steam delivery pipe (17).
8. The three-pressure natural circulation waste heat boiler with the H-shaped finned tube according to claim 1, wherein the reheater (5) is provided with a steam inlet (5-1) and a steam outlet (5-2) penetrating through a furnace wall, the steam inlet (5-1) and the steam outlet (5-2) are arranged on the outer side of the furnace wall close to one end of a steam drum, and a saturated steam pipeline (10) and a superheated steam pipeline (9) are respectively connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320696471.5U CN219995307U (en) | 2023-04-03 | 2023-04-03 | Three-pressure type natural circulation waste heat boiler with H-shaped finned tubes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320696471.5U CN219995307U (en) | 2023-04-03 | 2023-04-03 | Three-pressure type natural circulation waste heat boiler with H-shaped finned tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219995307U true CN219995307U (en) | 2023-11-10 |
Family
ID=88603576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320696471.5U Active CN219995307U (en) | 2023-04-03 | 2023-04-03 | Three-pressure type natural circulation waste heat boiler with H-shaped finned tubes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219995307U (en) |
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2023
- 2023-04-03 CN CN202320696471.5U patent/CN219995307U/en active Active
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