CN219389678U - sZS fast-assembling energy-saving boiler with fins - Google Patents
sZS fast-assembling energy-saving boiler with fins Download PDFInfo
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- CN219389678U CN219389678U CN202223251598.0U CN202223251598U CN219389678U CN 219389678 U CN219389678 U CN 219389678U CN 202223251598 U CN202223251598 U CN 202223251598U CN 219389678 U CN219389678 U CN 219389678U
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Abstract
The utility model discloses a fast-assembling energy-saving boiler with fins SZS, which comprises a boiler main body, wherein an upper steam drum is arranged at the upper end of the boiler main body, a lower steam drum is arranged at the lower end of the boiler main body, a hearth is arranged in the middle of the boiler main body, a combustion device is arranged at the front end of the hearth, a convection tube bundle is arranged at one side in the hearth, a flue is also arranged at the position of the air outlet end of the convection tube bundle, a tail heating surface is arranged on the flue, and flue gas enters the hearth after being combusted by the combustion device, then enters the flue through the convection tube bundle and is discharged from the flue. The boiler of the device still adopts an SZS series large hearth structure, so that the generation of thermal NOx can be well inhibited, and the low-nitrogen emission of the boiler equipment can be easily realized; the boiler of the device effectively solves the problems of large transportation size and large occupied area of a host machine of a medium-sized and large-sized boiler; the boiler heating surface of the fast-assembling energy-saving boiler of the device is abundant in arrangement, compact in structure and sufficient in boiler output, and the boiler heating surface can be adjusted according to actual conditions.
Description
Technical Field
The utility model relates to the technical field of fuel oil and gas SZS series water pipe boilers, in particular to a SZS fast-assembling energy-saving boiler with fins.
Background
At present, along with the increase of the NOX emission in the global atmosphere, not only the health of human beings is directly affected to cause pulmonary edema of the human beings and animals, but also the prevalence of chronic bronchitis, rhinitis and nasopharyngeal carcinoma is increased; the increasing of NOX emission indirectly aggravates global greenhouse effect, causes ozone layer to be destroyed, has eye diseases and skin cancer to be increased, enlarges the range of acid rain formation, and has great influence on the living environment of human beings.
The SZS series water pipe steam boiler is an important heat exchange device, and has a large hearth structure, so that when the external flue gas recirculation low-nitrogen combustion technology is adopted by a burner, the generation of thermal NOx can be well inhibited in the hearth, and the boiler device can easily realize low-nitrogen emission; in addition, the furnace type has good load adjusting capability, so that the furnace type is widely used.
At present, as the market competition of boilers is increasingly strong, the capacity of the boilers is greatly developed, the steam pressure is 1.6MPa to 3.0MPa, the furnace type of the SZS water pipe steam boiler is longer and longer, the upper steam drum is thicker and thicker, the thickness of heat insulation of the barrel which is subjected to heat treatment process and used in the temperature range of more than 900 ℃ of the plate can be achieved, the manufacturing cost and difficulty are obviously greatly increased, the material use cost and the transportation cost are increased, the whole transportation size is longer, the convection tube bundle of the boiler light pipes is increased, the flow resistance of the smoke of the main boiler is proportionally increased, the power of the selected burner fan is also increased, and the purchased auxiliary machine cost and the electricity consumption cost of a user are both increased.
Therefore, in order to solve the above problems, there is a need to develop a fast-assembled energy-saving boiler with fins SZS, which has a sufficient arrangement of heating surfaces and a convenient load adjustment.
Disclosure of Invention
The utility model aims to provide a fast-assembling energy-saving boiler with fins SZS, which aims at overcoming the defects in the prior art; the technical scheme is as follows:
the utility model provides a take fin SZS fast-assembling energy-saving boiler, includes the boiler main part, and this boiler main part upper end is provided with the steam pocket, and the lower extreme is provided with the steam pocket down, is provided with the furnace in the middle, and this furnace's front end is provided with burner, and one side is provided with convection bank in the furnace, and the flue is still installed to the end position department of giving vent to anger of convection bank, is provided with the afterbody heating surface on this flue, and flue gas enters into in the furnace after burning through burner, again enters into the flue through convection bank, discharges from the flue.
The convection bank is located same one side with last steam pocket and lower steam pocket, and the air inlet end one side sets up to the high temperature section in this convection bank, and air outlet end one side sets up to the low temperature section, and wherein high temperature section links to each other with last steam pocket, and the low temperature section links to each other with lower steam pocket.
Further, the hearth comprises a hearth front wall membrane wall, a hearth side wall membrane wall, a hearth rear wall membrane wall and a hearth partition wall membrane wall; the furnace partition membrane wall separates the furnace from the convection tube bundle.
Further, the right opposite face of the air inlet end of the convection bank is set as a convection front wall film type wall, the side face position of the air inlet end is set as a convection side wall film type wall, and the right opposite face of the air outlet end of the convection bank is set as a convection rear wall film type wall.
Further, the convection bank is directly or indirectly connected with the upper steam drum and the lower steam drum through film wall pipes on the corresponding wall bodies.
Further, the convection bank takes the heating surface tube position with 600 ℃ thermodynamic temperature as a demarcation point, the temperature higher than 600 ℃ is a high temperature section, and the temperature lower than 600 ℃ is a low temperature section; 45% of the high Wen Duanzhan total convection bank and 55% of the low temperature Duan Zhan total convection bank.
Further, the high temperature section is arranged as a light pipe convection tube bundle, the pitch between the tube bundles along the flue gas flow direction is larger than the tube bundle pitch of the low temperature section, and the height Wen Duanzhan is 45% of the total convection tube bundle.
Further, the low-temperature section is arranged as a convection tube bundle with straight fins at the front and back of the tube body; and 55% of the total convection bank of low temperature Duan Zhan.
Further, the boiler body is integrally arranged on the chassis, and the boiler body is correspondingly arranged on the chassis through a bracket; furnace wall metal parts are welded between the film walls around the boiler main body, heat preservation layers are further arranged on the furnace wall metal parts, and outer cladding layers are further arranged on the outer sides of the brackets.
The beneficial effects are that: the utility model has the following beneficial effects:
(1) The boiler of the device still adopts an SZS series large hearth structure, so that the generation of thermal NOx can be well inhibited, and the low-nitrogen emission of the boiler equipment can be easily realized;
(2) The boiler of the device effectively solves the problems of large transportation size and large occupied area of a host machine of a medium-sized and large-sized boiler;
(3) The boiler heating surface of the fast-assembled energy-saving boiler of the device is abundant in arrangement, compact in structure and sufficient in output of the boiler, and the boiler heating surface can be adjusted according to actual conditions;
(4) The device can be produced in series during production, so that the production flow is simple and clear;
(5) The processing technology cost, the material cost and the transportation cost of the device are relatively less, and the use cost of a user is relatively reduced.
Drawings
FIG. 1 is a block diagram of the present utility model;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a sectional view of B-B in fig. 1.
Detailed Description
The utility model will be further illustrated by the following drawings and specific examples, which are carried out on the basis of the technical solutions of the utility model, it being understood that these examples are only intended to illustrate the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1, fig. 2 and fig. 3, the fast-assembling energy-saving boiler with the fin SZS comprises a boiler main body 12, an upper steam drum 5 is arranged at the upper end of the boiler main body 12, a lower steam drum 6 is arranged at the lower end of the boiler main body, a hearth 13 is arranged in the middle of the boiler main body, a combustion device 14 is arranged at the front end of the hearth 13, a convection tube bundle 15 is arranged at one side in the hearth 13, a flue 16 is further arranged at the position of the air outlet end of the convection tube bundle 15, a tail heating surface 17 is arranged on the flue 16, the flue gas enters the hearth 13 after being combusted by the combustion device 14, then enters the flue 16 through the convection tube bundle 15, and is discharged from the flue 16.
The convection bank 15 is located on the same side as the upper steam drum 5 and the lower steam drum 6, and the air inlet side of the convection bank 15 is set to be a high temperature section 8, the air outlet side is set to be a low temperature section 7, the high temperature section 8 is connected with the upper steam drum 5, and the low temperature section 7 is connected with the lower steam drum 6.
The hearth 13 comprises a hearth 13 front wall membrane wall 1, a hearth 13 side wall membrane wall 2, a hearth 13 rear wall membrane wall 3 and a hearth 13 partition wall membrane wall 4; the furnace 13 is separated from the convection bank 15 by a furnace 13 partition membrane wall 4; the right opposite of the air inlet end of the convection bank 15 is set as a convection front wall film wall 10, the side position of the air inlet end is set as a convection side wall film wall 11, and the right opposite of the air outlet end of the convection bank 15 is set as a convection rear wall film wall 9.
The convection bank 15 is directly or indirectly connected with the upper steam drum 5 and the lower steam drum 6 through film wall pipes on the corresponding walls; the convection bank 15 takes the heating surface tube position with 600 ℃ thermodynamic temperature as a demarcation point, the heating surface tube position is a high-temperature section 8 above 600 ℃ and a low-temperature section 7 below 600 ℃; wherein the high temperature section 8 accounts for 45% of the total convection bank 15, and the low temperature section 7 accounts for 55% of the total convection bank 15.
The high temperature section 8 is arranged as a light pipe convection tube bundle, the pitch between the tube bundles along the flue gas flow direction is larger than the tube bundle pitch of the low temperature section 7, and the high temperature section 8 accounts for 45% of the total convection tube bundle 15; the low-temperature section 7 is arranged as a convection tube bundle with straight fins at the front and back of the tube body; and this low temperature section 7 represents 55% of the total convection bank 15.
The boiler main body 12 is integrally arranged on the chassis 18, and the boiler main body 12 is correspondingly arranged on the chassis 18 through the bracket 19; furnace wall metal parts are welded between the film walls around the boiler main body 12, heat preservation layers 20 are further arranged on the furnace wall metal parts, and outer wrapping layers 21 are further arranged on the outer sides of the brackets 19.
The SZS fast-assembling energy-saving boiler of this device specifically includes: the device comprises a combustion device, a hearth, a high-temperature section-light pipe convection tube bundle, a low-temperature section-straight fin convection tube bundle, an upper steam drum, a lower steam drum, a chassis, a support, a heat preservation layer of a furnace wall, an outer cladding layer, a flue and a tail heating surface on the flue.
The combustion device is positioned on the front wall of the hearth, the high-temperature section and the low-temperature section are respectively connected with the upper steam drum and the lower steam drum to form a body block, and the body block and the hearth are both arranged on the chassis, so that a boiler host is stroked; the tail heating surface can be configured according to the requirements, and is arranged on a flue gas pipeline between an outlet flue of the host and a chimney, and the positions of the tail heating surface can be flexibly arranged.
The hearth consists of a hearth front wall membrane wall, a hearth side wall membrane wall, a hearth rear wall membrane wall and a hearth partition wall membrane wall, and the upper end and the lower end of a membrane wall pipe are directly or indirectly connected to an upper steam bag and a lower steam bag.
The high temperature section is arranged as a convection tube bundle of light tubes, the low temperature section is arranged as a convection tube bundle of straight fins, the high temperature section and the low temperature section are respectively connected with an upper steam drum and a lower steam drum, and a convection front wall film type wall, a convection rear wall film type wall and a convection side wall film type wall form a body block; the high temperature section (light pipe convection bank) accounts for about one third of the total convection heating surface.
The high temperature section is a light pipe convection tube bundle, the pitch between the tube bundles along the flue gas flowing direction is required to be larger than that of the low temperature section, and the pitch is selected to ensure that the thickness of the cylinder body is the thickness which does not need heat treatment when the tube bundles are at the thermodynamic temperature of more than 900 ℃.
The low-temperature section is a convection tube bundle with straight fins in front and back of the tube, the heated area of a single tube can be increased by the increase of the straight fins, the number of rows of arranged tubes can be reduced, and the section size of smoke circulation cannot be influenced by welding the straight fins in front and back. Thus, the smoke resistance of the body is reduced due to the total number of rows.
The energy-saving boiler of the device can realize the problem of large-scale development of the capacity of the boiler, when the convection heating surface between the upper bubble and the lower bubble is arranged in the steam pressure process of 1.6MPa to 3.OMPa, the heating surface pipe position at the heating temperature of 600 ℃ is taken as a demarcation point, the convection pipe bundle heating surface (low-temperature section) of the original light pipe below 600 ℃ is made into a convection pipe bundle with straight fins along the flue gas direction, thus the heating area of a single pipe can be increased, the number of rows of the arranged low-temperature Duan Guanshu is reduced, and the resistance of flue gas can be greatly reduced.
The minimum required wall thickness of the cylinder is selected according to the longitudinal pitch of the low temperature Duan Guanshu, the wall thickness is required to be smaller than the maximum wall thickness which does not need heat treatment, then a light pipe tube bundle is still adopted for the tube bundle of the high temperature section, and the longitudinal arrangement pitch of the tube bundle of the high temperature section is calculated reversely according to the minimum wall thickness selected by the low temperature section, so that the overall dimension of the whole boiler main body is basically shaped.
The SZS fast-assembling energy-saving boiler with the straight fins can realize that the equipment can be made more compact under the conditions that the heating surface is arranged in abundance and the load adjustment is convenient under the condition that the same boiler load is met under the condition that the size of a hearth can completely meet the flame size requirement of combustion of a burner, and the processing process cost and the material cost are relatively low.
The capacity of the SZS fast-assembled energy-saving boiler with the convection tube lacing fins can be adjusted and changed by adjusting the length, the width, the height and the length of the low-temperature section to adjust the heating surface of the boiler, and the wall thickness of the cylinder body can meet the requirements of users on the steam quantity and the steam pressure of the boiler.
The above detailed description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the claims, but all equivalent changes and modifications that can be made according to the protection scope of the claims are included in the scope of the claims.
Claims (8)
1. A take fin SZS fast-assembling energy-saving boiler, its characterized in that: comprises a boiler main body (12), an upper steam drum (5) is arranged at the upper end of the boiler main body (12), a lower steam drum (6) is arranged at the lower end of the boiler main body, a hearth (13) is arranged in the middle of the boiler main body, a combustion device (14) is arranged at the front end of the hearth (13), a convection tube bundle (15) is arranged at one side in the hearth (13), a flue (16) is also arranged at the position of the air outlet end of the convection tube bundle (15), a tail heating surface (17) is arranged on the flue (16), the flue gas enters the hearth (13) after being combusted by the combustion device (14), enters the flue (16) through the convection tube bundle (15) and is discharged from the flue (16),
the convection bank (15) is located on the same side with the upper steam drum (5) and the lower steam drum (6), and one side of an air inlet end in the convection bank (15) is set to be a high-temperature section (8), one side of an air outlet end is set to be a low-temperature section (7), the high-temperature section (8) is connected with the upper steam drum (5), and the low-temperature section (7) is connected with the lower steam drum (6).
2. The energy-saving fast-assembling boiler with fin SZS according to claim 1, characterized in that: the hearth (13) comprises a front wall membrane wall (1) of the hearth (13), a side wall membrane wall (2) of the hearth (13), a rear wall membrane wall (3) of the hearth (13) and a partition wall membrane wall (4) of the hearth (13); the furnace (13) is separated from the convection bank (15) by a partition membrane wall (4).
3. The energy-saving fast-assembling boiler with fin SZS according to claim 2, characterized in that: the right opposite face of the air inlet end of the convection bank (15) is arranged as a convection front wall film type wall (10), the side face position of the air inlet end is arranged as a convection side wall film type wall (11), and the right opposite face of the air outlet end of the convection bank (15) is arranged as a convection rear wall film type wall (9).
4. The energy-saving fast-assembling boiler with fin SZS according to claim 3, characterized in that: the convection tube bundle (15) is directly or indirectly connected with the upper steam drum (5) and the lower steam drum (6) through film wall tubes on the corresponding wall bodies.
5. The energy-saving fast-assembling boiler with fin SZS according to claim 1, characterized in that: the convection tube bundle (15) takes the heating surface tube position with the heating temperature of 600 ℃ as a demarcation point, the heating surface tube position with the heating temperature of 600 ℃ is a high-temperature section (8) with the heating temperature higher than 600 ℃ and a low-temperature section (7) with the heating temperature lower than 600 ℃; wherein the high temperature section (8) accounts for 45% of the total convection bank (15), and the low temperature section (7) accounts for 55% of the total convection bank (15).
6. The energy-saving fast-assembling boiler with fin SZS according to claim 5, characterized in that: the high temperature section (8) is arranged as a light pipe convection tube bundle, the pitch between the tube bundles along the flue gas flowing direction is larger than the tube bundle pitch of the low temperature section (7), and the high temperature section (8) accounts for 45% of the total convection tube bundle (15).
7. The energy-saving fast-assembling boiler with fin SZS according to claim 5, characterized in that: the low-temperature section (7) is arranged as a convection tube bundle with straight fins at the front and back of the tube; and the low temperature section (7) accounts for 55% of the total convection bank (15).
8. The energy-saving fast-assembling boiler with fin SZS according to claim 1, characterized in that: the boiler main body (12) is integrally arranged on the chassis (18), and the boiler main body (12) is correspondingly arranged on the chassis (18) through the bracket (19); furnace wall metal parts are welded between the film walls around the boiler main body (12), heat preservation layers (20) are further arranged on the furnace wall metal parts, and outer cladding layers (21) are further arranged on the outer sides of the supports (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223251598.0U CN219389678U (en) | 2022-12-05 | 2022-12-05 | sZS fast-assembling energy-saving boiler with fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223251598.0U CN219389678U (en) | 2022-12-05 | 2022-12-05 | sZS fast-assembling energy-saving boiler with fins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219389678U true CN219389678U (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223251598.0U Active CN219389678U (en) | 2022-12-05 | 2022-12-05 | sZS fast-assembling energy-saving boiler with fins |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219389678U (en) |
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2022
- 2022-12-05 CN CN202223251598.0U patent/CN219389678U/en active Active
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