CN211345850U - Split type organic heat carrier furnace - Google Patents
Split type organic heat carrier furnace Download PDFInfo
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- CN211345850U CN211345850U CN201922346548.2U CN201922346548U CN211345850U CN 211345850 U CN211345850 U CN 211345850U CN 201922346548 U CN201922346548 U CN 201922346548U CN 211345850 U CN211345850 U CN 211345850U
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Abstract
The utility model relates to an organic heat carrier heater technical field especially relates to a split type organic heat carrier heater, including split type coal-fired organic heat carrier heater, denitration reactor and radiation part, be equipped with first convection section in the split type coal-fired organic heat carrier heater, the second convection section, third convection section and fourth convection section, denitration reactor sets up between second convection section and third convection section, the radiation part sets up the one side at denitration reactor, and the bottom of radiation part is equipped with the chain grate, first convection section, the second convection section, third convection section and fourth convection section are arranged from top to bottom in proper order, be equipped with the flue part between first convection section and the radiation part top. The utility model discloses the organic heat carrier heater of split type structure is solitary radiation section, modular convection section, and whole assembles, checks and accepts in the factory, so can satisfy the requirement of large-scale heat power organic heat carrier heater to the structure.
Description
Technical Field
The utility model relates to an organic heat carrier heater technical field especially relates to a split type organic heat carrier heater.
Background
At present, the conventional organic heat carrier furnace has two structures, namely a vertical cylindrical tube furnace and a square box type furnace. The heating surface of the vertical cylindrical furnace consists of an inner layer spiral coil and an outer layer spiral coil, and can also consist of an inner layer spiral coil, a middle layer spiral coil and an outer layer spiral coil along with the increase of thermal power. The vertical cylindrical tube furnace structure is limited by the height-diameter ratio and the transportation size, and the structure cannot meet the requirements of a large organic heat carrier furnace, so the problem needs to be structurally solved. The radiation heating surface of the square box type organic heat carrier furnace is a rectangular spiral coil or a double-rectangular spiral coil, the convection heating surface of the square box type organic heat carrier furnace is of an S-shaped serpentine tube structure, and flue gas is discharged from a smoke outlet after heat exchange is carried out on the flue gas from the radiation section through the convection section. Due to the limitation of transportation size, a large-sized square box furnace needs to be provided with a plurality of layers of radiation heating surface tube groups, and a convection heating surface also needs to be provided with a plurality of layers of tube groups, so that the large-sized square box furnace needs to be assembled on site. Improvement in structure is urgently required.
With the rapid increase of the market demand for large-scale heat-power organic heat carrier furnaces, the conventional cylindrical furnace type is limited by the height-diameter ratio of the cylinder and the transportation size, and cannot be adapted. And the radiation section and the convection section of the conventional square box furnace need to adopt a multilayer structure, and all the radiation section and the convection section need to be assembled, welded and inspected on site.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a split type organic heat carrier furnace.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a split type organic heat carrier furnace, includes split type coal-fired organic heat carrier furnace, denitration reactor and radiation component, be equipped with convection current section part in the split type coal-fired organic heat carrier furnace, and convection current section part includes first convection current section, second convection current section, third convection current section and fourth convection current section, denitration reactor sets up between second convection current section and third convection current section, radiation component sets up the one side at denitration reactor, and radiation component's bottom is equipped with the chain grate.
Preferably, the first convection section, the second convection section, the third convection section and the fourth convection section are sequentially arranged from top to bottom.
Preferably, a flue part is arranged between the first convection section and the top of the radiation part.
Preferably, the radiation member is internally provided with a coil member.
Preferably, an inlet header is arranged on one side of the top of the radiation part, and an outlet header is arranged on one side of the bottom of the radiation part.
Preferably, a convection section pipe group is arranged in the convection section part.
Compared with the prior art, the utility model discloses the organic heat carrier heater of split type structure is solitary radiation section, modular convection section, and whole equipment, inspection accept in the factory, so can satisfy the requirement of large-scale heat power organic heat carrier heater to the structure.
Drawings
Fig. 1 is a schematic view of a split organic heat carrier furnace according to the present invention;
fig. 2 is a schematic front view structure diagram of a radiation component of a split organic heat carrier furnace according to the present invention;
fig. 3 is a schematic view of a top view structure of a convection section of a split organic heat carrier furnace according to the present invention;
fig. 4 is a schematic view of the convection section component of the split organic heat carrier furnace according to the present invention.
In the figure: the device comprises a split type organic heat carrier furnace body 1, a convection section part 2, a first convection section 21, a second convection section 22, a third convection section 23, a fourth convection section 24, a denitration reactor 3, a flue part 4, a radiation part 5, a traveling grate 6, a convection section pipe group 7, a coil part 8, an inlet header 9 and an outlet header 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a split type organic heat carrier furnace, including split type coal-fired organic heat carrier furnace 1, denitration reactor 3 and radiation part 5, be equipped with convection section part 2 in the split type coal-fired organic heat carrier furnace 1, and convection section part 2 includes first convection section 21, second convection section 22, third convection section 23 and fourth convection section 24, denitration reactor 3 sets up between second convection section 22 and third convection section 23, radiation part 5 sets up the one side at denitration reactor 3, and radiation part 5's bottom is equipped with chain grate 6, be equipped with flue part 4 between first convection section 21 and the radiation part 5 top, the ceramic fiber structure of high temperature resistance is adopted to flue part 4 inner wall.
The first convection section 21, the second convection section 22, the third convection section 23 and the fourth convection section 24 are sequentially arranged from top to bottom, a convection section pipe group 7 is arranged in the convection section part 2, each group of modules consists of a series of serpentine pipes connected in parallel and an upper header and a lower header, the diameters of the convection section pipes, the transverse intervals of the pipes, the longitudinal intervals, the number of rows, the number of layers and the connection modes among the modules need to be connected in parallel or in series, and the diameters, the transverse intervals, the longitudinal intervals, the number of rows and the number of layers and the connection modes among the modules are determined according to the requirements of thermal calculation and flow.
Wherein, the inside of radiation part 5 is equipped with coil pipe part 8, and one side at the top of radiation part 5 is equipped with import collection box 9, and one side at the bottom of radiation part 5 is equipped with export collection box 10, and the cylindrical spiral coil pipe of coil pipe part 8 individual layer, the pipe diameter of spiral coil pipe, number of turns, the helical pitch number need confirm according to the requirement of "thermal calculation", the interior flow resistance of "pipe calculates". The central position of the spiral coil of the radiant heating surface needs to be matched with the length, width and other dimensions of the fire grate of the coal-fired chain fire grate, and the diameter of the burner torch and the length of the torch need to be matched with the fuel/gas furnace.
With the rapid increase of the market demand for large-scale heat-power organic heat carrier furnaces, the conventional cylindrical furnace type is limited by the height-diameter ratio of the cylinder and the transportation size, and cannot be adapted. And the radiation section and the convection section of the conventional square box furnace need to adopt a multilayer structure, and all the radiation section and the convection section need to be assembled, welded and inspected on site. The split-type organic heat carrier furnace is an independent radiation section and a modular convection section, and is completely assembled and accepted in a factory, so that the requirements of the large-scale heat-power organic heat carrier furnace on the structure can be met.
The vertical cylindrical tubular body comprises a radiation heating surface and a convection heating surface, the diameter of the furnace body is limited by the transportation size and can only be developed to the height, but is limited by the height-diameter ratio, and the requirements of a large organic heat carrier furnace cannot be met. Only a single-layer radiation heating surface is arranged in the vertical cylinder, along with the increase of the diameter of the single-layer radiation heating surface and the high matching, the area of the radiation heating surface can meet the requirement of a large-scale furnace, so that the original furnace body becomes a radiation section component, and the convection heating surface in the furnace body is separated to form an independent convection section component. The heating surface of the convection section consists of parallel snakelike steel pipes and is horizontally arranged. The flue gas outside the pipe flows from top to bottom, and the heat conducting oil inside the pipe flows from bottom to top, which is beneficial to heat transfer and reduces ash deposition. The snakelike steel pipe has both sides tube sheet as the support is fixed and is fixed a position, and large-scale organic heat carrier's convection current part needs a plurality of subassembly, and the length of every subassembly appearance is the same, wide, is the module type structure, and it is very convenient when the module type subassembly is installed.
The square box type organic heat carrier furnace body comprises a radiation heating surface consisting of a rectangular spiral coil or double-rectangular spiral coils, wherein a convection heating surface of the square box type organic heat carrier furnace body is an S-shaped coiled pipe, a large-scale square box furnace body is required to be provided with a plurality of layers of heating surface pipe groups on the radiation heating surface, and a plurality of layers of pipe groups on the S-shaped coiled pipe convection heating surface are required to be provided. The S-shaped coiled pipe is easy to accumulate dust and has large temperature difference when being connected in parallel. The radiation convection heating surfaces are required to be assembled on site, fixed, positioned and inspected on site, and the method comprises nondestructive inspection of butt weld joints of the heating surfaces on site, monitoring and inspection of special equipment on different places and the like. The process which can be completed in the manufacturing factory is changed to the field installation, and the process is complex and the period is long. The large organic heat carrier furnace is not suitable for square box type.
Main design parameters of split organic heat carrier furnace
Rated thermal power of 38.4MW
Rated working pressure: 0.8Mpa
Designing pressure: 1.1Mpa
Fourthly, the maximum working temperature of the heat transfer oil is as follows: 320 deg.C
⑤ Heat conduction oil ringFlow rate: 1600m3/h
Sixthly, the fuel variety: bituminous coal
Low heating value of fuel: 22380KJ/kg
Eighthly, thermal efficiency: 85.3 percent
According to market requirements, a fuel oil and gas split type organic heat carrier furnace can be designed.
Compared with the split coal-fired organic heat carrier furnace 1, the split fuel/gas organic heat carrier furnace has no denitration reactor 3, and the bottom of the radiation part 5 is provided with a burner.
Example (b): the main technological process of manufacturing the radiation section comprises the following steps: 1. pipe: material acceptance → marking and blanking → pipe end processing → pipe splicing → welding → nondestructive testing → bending to coil pipe → ready-to-load; 2. collecting a box: material acceptance → marking and blanking → pipe end processing → assembling end cover → welding → nondestructive testing → marking and hole line → drilling → waiting for assembling; 3. and (3) radiation section final assembly: assembling the coil pipes with the upper and lower header tanks → assembly tack welding → nondestructive testing of fillet weld → hydrostatic test.
The main process of convection section manufacturing comprises the following steps: 1. pipe: material acceptance → marking and blanking → pipe end processing → bending → waiting for loading; 2. collecting a box: material acceptance → marking and blanking → pipe end processing → assembling end cover → welding → nondestructive testing injury → marking and pipe hole line → drilling → waiting for assembling; 3. a tube plate: material acceptance → marking and blanking → hole center line → drilling → waiting for loading; 4. assembling the coiled pipe: the tube plate is installed and fixed on the special tool → the convection bank is assembled and positioned and welded → nondestructive testing → ready for assembly; 5. and (3) assembling the convection section: assembling the coiled pipe with the upper and lower header → positioning welding → nondestructive testing of fillet weld → hydrostatic test.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A split type organic heat carrier furnace is characterized by comprising:
the split type coal-fired organic heat carrier furnace (1) is internally provided with a convection section component (2), and the convection section component (2) comprises a first convection section (21), a second convection section (22), a third convection section (23) and a fourth convection section (24);
a denitration reactor (3), the denitration reactor (3) being arranged between the second convection section (22) and the third convection section (23); and
the denitration reactor comprises a radiation part (5), wherein the radiation part (5) is arranged on one side of the denitration reactor (3), and a chain grate (6) is arranged at the bottom of the radiation part (5).
2. The split organic heat carrier furnace according to claim 1, wherein the first convection section (21), the second convection section (22), the third convection section (23) and the fourth convection section (24) are sequentially arranged from top to bottom.
3. A split organic heat carrier furnace according to claim 1, characterised in that a flue part (4) is arranged between the first convection section (21) and the top of the radiant part (5).
4. A split organic heat carrier furnace according to claim 1, characterised in that the inside of the radiant elements (5) is provided with coil elements (8).
5. A split organic heat carrier furnace according to claim 1, characterised in that the side of the top of the radiant elements (5) is provided with an inlet header (9) and the side of the bottom of the radiant elements (5) is provided with an outlet header (10).
6. A split organic heat carrier furnace according to claim 1, characterised in that a convection section tube bank (7) is arranged in the convection section part (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922346548.2U CN211345850U (en) | 2019-12-24 | 2019-12-24 | Split type organic heat carrier furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922346548.2U CN211345850U (en) | 2019-12-24 | 2019-12-24 | Split type organic heat carrier furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211345850U true CN211345850U (en) | 2020-08-25 |
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ID=72104703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922346548.2U Active CN211345850U (en) | 2019-12-24 | 2019-12-24 | Split type organic heat carrier furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211345850U (en) |
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2019
- 2019-12-24 CN CN201922346548.2U patent/CN211345850U/en active Active
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