CN219933943U - Horizontal low-pressure high-temperature steam generator - Google Patents
Horizontal low-pressure high-temperature steam generator Download PDFInfo
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- CN219933943U CN219933943U CN202321485369.7U CN202321485369U CN219933943U CN 219933943 U CN219933943 U CN 219933943U CN 202321485369 U CN202321485369 U CN 202321485369U CN 219933943 U CN219933943 U CN 219933943U
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- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 20
- 238000002955 isolation Methods 0.000 claims abstract description 15
- 239000011229 interlayer Substances 0.000 claims description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- 238000002485 combustion reaction Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 239000003546 flue gas Substances 0.000 claims description 8
- 239000000779 smoke Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005452 bending Methods 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a horizontal low pressure high temperature steam generator, the steam generator comprises a furnace body, the combustor, the furnace body includes the collector pipe that is located the bottom both sides, the left side wall of furnace body, the right side wall is the diaphragm wall, the lower extreme intercommunication collector pipe of heat exchange tube, the front wall of furnace body, the back wall is the intermediate layer, intermediate layer and collector pipe intercommunication, install the steam collecting drum in the upper end of furnace body, the steam collecting drum is the sandwich structure that two drums constitute, heat exchange tube upper end on the diaphragm wall is connected on the urceolus of steam collecting drum and intermediate layer intercommunication, be connected with out the steam pipe on the steam collecting drum, the upper aluminum alloy heat exchange tube of one deck level U-shaped bending is installed to the below of last heat exchange chamber, the lower floor aluminum alloy heat exchange tube of one deck level U-shaped bending is installed to the isolation top below on upper portion, the heat exchange chamber both sides are close to the diaphragm wall and are provided with many heat exchange tubes respectively, heat exchange tube and the front wall of furnace body, back wall intermediate layer intercommunication, combustor seamless fixed connection is on the combustor interface of furnace body. The steam generator is relatively simple to manufacture.
Description
Technical Field
The utility model relates to a steam generator, in particular to a low-pressure high-temperature steam generator, and belongs to the technical field of heat exchangers.
Background
The low-pressure high-temperature steam has higher temperature, better heat carrying performance, not quite high pressure and better safety, the low-pressure high-temperature steam is output through the low-pressure high-temperature steam generator, the applicant discloses a low-pressure high-temperature horizontal steam generator furnace body in China patent application No. 2023200145132, the furnace body can generate low-temperature high-pressure steam after being matched with a burner, and in actual use, the low-pressure high-temperature steam generator adopting the furnace body and the burner is found to be optimized as follows: firstly, in furnace body manufacturing, install the inner tube in the steam collecting drum, there are many cross pipes in the inner tube, this kind of mode is comparatively loaded down with trivial details in manufacturing, and with high costs, how can enough guarantee the heat transfer efficiency can also reduce the manufacturing cost of furnace body and be the place that needs the improvement, secondly, combustor and furnace body are components of a whole that can function independently, and the combustor can be dismantled the cooperation and install on the combustor interface of furnace body when the installation, and it is tight inadequately to adopt this kind of mode to find that the combination of some use occasions combustor and furnace body, will have the cold air to get into the furnace body like this, influences combustion quality and thermal efficiency.
Disclosure of Invention
The utility model aims to overcome the problems in the prior low-pressure high-temperature steam generator and provide the low-pressure high-temperature steam generator.
In order to achieve the purpose of the utility model, the following technical scheme is adopted: the horizontal low-pressure high-temperature steam generator comprises a furnace body and a combustor, wherein the furnace body comprises water collecting pipes positioned at two sides of the bottom, a water inlet of the furnace body is positioned on the water collecting pipes, the left side wall and the right side wall of the furnace body are membrane walls formed by a plurality of heat exchange pipes, the lower ends of the heat exchange pipes are communicated with the corresponding water collecting pipes, the front wall and the rear wall of the furnace body are respectively an interlayer, the interlayer is communicated with the water collecting pipes, two isolation tops are fixedly arranged in the furnace body, the isolation tops of the furnace body are inclined planes with low back and high front, fin heat exchange pipes are arranged below the inclined planes, the fin heat exchange pipes are communicated with the interlayer of the front wall and the rear wall of the furnace body, the two isolation tops divide the furnace body into a lower heat exchange chamber, a middle heat exchange chamber and an upper heat exchange chamber, the front ends of the isolation tops of the lower part and the upper parts are respectively provided with a first smoke flow port and a second smoke flow port, a collection bag is fixedly arranged at the upper end of the furnace body, a safety valve is arranged on the collection bag, the steam collecting drum is of a sandwich structure formed by two cylinders, the upper ends of the heat exchange tubes on the film wall are connected to the outer cylinder of the steam collecting drum and communicated with the interlayer, the inner cylinder from the rear part of the upper heat exchange chamber to the steam collecting drum is provided with a third flue gas flow port, the front part of the steam collecting drum is provided with an upward flue gas outlet, the steam collecting drum is connected with a steam outlet tube, a layer of upper aluminum alloy heat exchange tubes which are bent in a horizontal U shape is fixedly arranged below the steam collecting drum in the upper heat exchange chamber, a layer of lower aluminum alloy heat exchange tubes which are bent in a horizontal U shape are arranged below the isolating roof at the upper part, the inlet of the upper aluminum alloy heat exchange tubes is connected with the steam outlet tube, the outlet is connected with one end of the lower aluminum alloy heat exchange tubes, low-pressure high-temperature steam is output from the other end of the lower aluminum alloy heat exchange tubes, a liquid level meter mounting tube is arranged between the interlayer of the steam collecting drum and the water collecting tube, and the liquid level meter mounting tube is provided with a liquid level meter, the two sides of the lower heat exchange chamber, which are close to the membrane wall, are respectively provided with a plurality of heat exchange pipes, the heat exchange pipes are communicated with the interlayer of the front wall and the back wall of the furnace body, and the burner is seamlessly and fixedly connected to a burner interface of the furnace body.
Further; the combustion machine comprises a combustion chamber, wherein a grate is arranged at the bottom of the combustion chamber, an ash picking chamber is arranged below the grate, an arch-shaped top is arranged at the upper part of combustion, an arc-shaped jacket is arranged at the outer part of the arch-shaped top, a water interlayer is formed between the arc-shaped jacket and the arch-shaped top and is communicated with a front wall interlayer of the furnace body, the lower part of the combustion chamber is cuboid, a rectangular jacket is arranged at the outer part of the cuboid, an air interlayer is formed between the rectangular jacket and the cuboid, the air interlayer is isolated from the water interlayer, a blower is respectively arranged at the left side and the right side of the rectangular jacket, and a plurality of air inlets are formed in the peripheral wall of the lower part of the combustion chamber.
Further; the heat exchange tubes are fin tubes.
The utility model has the positive and beneficial technical effects that: the steam generator is relatively simple to manufacture while ensuring heat exchange efficiency, can reduce cost, and is integrated with the furnace body, so that unstable combustion caused by cold air entering is effectively avoided.
Drawings
Fig. 1 is an overall schematic of the present utility model.
Fig. 2 is an internal schematic view of the present utility model.
FIG. 3 is a schematic cross-sectional view of a combustor.
Detailed Description
In order to more fully explain the practice of the utility model, examples of the practice of the utility model are provided. These examples are merely illustrative of the present utility model and do not limit the scope of the utility model.
The utility model will be explained in further detail with reference to the accompanying drawings, in which: 1: a water collecting pipe; 2: a water pump; 3: a membrane wall; 4: a steam collecting drum; 5: an upper aluminum alloy heat exchange tube; 6: a lower aluminum alloy heat exchange tube; 7: a steam outlet; 8: a combustion machine; 9: a blower; 10: a feed pipe; 11: an inner cylinder; 12: a flue gas outlet; 13: a heat exchange tube; 14: a lower heat exchange chamber; 15: a medium heat exchange chamber; 16: a heat exchange chamber is arranged on the upper part; 17: a first flue gas flow port; 18: a second flue gas flow port; 19: a third flue gas flow port; 20: a water interlayer; 21: an air interlayer; 22: an air inlet hole; 23: a combustion chamber; 24: a fin heat exchange tube; 25: a grate; 26: and (5) drawing out the ash chamber.
As shown in the drawing, the horizontal low-pressure high-temperature steam generator comprises a furnace body and a combustor, wherein the furnace body comprises water collecting pipes 1 positioned on two sides of the bottom, a water inlet of the furnace body is positioned on the water collecting pipes, a water pump is shown as 2 and connected to the water collecting pipes, the left side wall and the right side wall of the furnace body are film type walls 3 formed by a plurality of heat exchange pipes, the lower ends of the heat exchange pipes are communicated with the corresponding water collecting pipes, the front wall and the rear wall of the furnace body are interlayers, the interlayers are communicated with the water collecting pipes, a plurality of heat exchange pipes 13 are respectively arranged on two sides of the lower heat exchange chamber close to the film type walls, the heat exchange pipes 13 are communicated with the front wall and the rear wall interlayer of the furnace body, and the plurality of heat exchange pipes 13 are fin type pipes.
Two isolation tops are fixedly arranged in the furnace body, the isolation top at the lower part is an inclined plane with a lower back and a higher front, a fin heat exchange tube 24 is arranged below the inclined plane and is communicated with an interlayer of the front wall and the back wall of the furnace body, the two isolation tops divide the furnace body into a lower heat exchange chamber 14, a middle heat exchange chamber 15 and an upper heat exchange chamber 16, the rear end of the isolation top at the lower part and the front end of the isolation top at the upper part are respectively provided with a first smoke flow port 17 and a second smoke flow port 18, a steam collecting drum 4 is fixedly arranged at the upper end of the furnace body, a safety valve is arranged on the steam collecting drum, the steam collecting drum is of a sandwich structure formed by two cylinders, an inner cylinder of the steam collecting drum is shown as 11, the upper ends of the heat exchange tubes on the membrane wall are connected with the outer cylinder of the steam collecting drum and are communicated with the interlayer, the inner cylinder from the rear part of the upper heat exchange chamber 16 to the steam drum is provided with a third smoke flow port 19, an upward smoke outlet 12 is formed in the front of the steam collecting drum, the steam collecting drum is connected with a steam outlet pipe, a layer of horizontal U-shaped bent upper aluminum alloy heat exchange pipe 5 is fixedly arranged below the steam collecting drum in the upper heat exchange chamber, a layer of horizontal U-shaped bent lower aluminum alloy heat exchange pipe 6 is arranged below the isolation top at the upper part, the inlet of the upper aluminum alloy heat exchange pipe 5 is connected with the steam outlet pipe of the steam collecting drum, the outlet is connected with one end of the lower aluminum alloy heat exchange pipe 6, low-pressure high-temperature steam is output from the other end of the lower aluminum alloy heat exchange pipe, a steam outlet on the lower aluminum alloy heat exchange pipe is shown at 7, a liquid level meter mounting pipe is arranged between an interlayer of the steam collecting drum and the water collecting pipe, a liquid level meter is arranged on the liquid level meter mounting pipe, and the burner is seamlessly and fixedly connected to a burner interface of a furnace body. Compared with the technical scheme in Chinese patent application number 2023200145132, the furnace body removes the cross pipes in the inner cylinder of the steam collecting drum, and in order to ensure the heat exchange effect, the heat exchange pipes 13 are added on the lower heat exchange chamber, so that the heat exchange efficiency can be ensured, and the exhaust gas temperature can be reduced through experiments.
The burner comprises a combustion chamber 25, a grate 25 is arranged at the bottom of the combustion chamber, an ash drawing chamber 26 is arranged below the grate, an arch-shaped top is arranged at the upper part of combustion, an arc-shaped jacket is arranged at the outer part of the arch-shaped top, a water interlayer 20 is formed between the arc-shaped jacket and the arch-shaped top and is communicated with a front wall interlayer of a furnace body, the lower part of the combustion chamber is cuboid, a rectangular jacket is arranged at the outer part of the cuboid, an air interlayer 21 is formed between the rectangular jacket and the cuboid, the air interlayer is mutually isolated from the water interlayer, a blower 9 is respectively arranged at the left side and the right side of the rectangular jacket, and a plurality of air inlets 22 are formed in the peripheral wall of the lower part of the combustion chamber. Under the structure, combustion-supporting gas enters from the gas interlayer to be preheated well into hot air, so that good combustion quality in the combustion chamber can be realized, and water in the water interlayer cools the upper part.
Having described embodiments of the present utility model in detail, it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the scope and spirit of the utility model as defined in the appended claims, and any simple, equivalent changes and modifications to the above examples are intended to be within the scope of the present utility model and the utility model is not limited to the embodiments as set forth in the specification.
Claims (3)
1. The horizontal low-pressure high-temperature steam generator comprises a furnace body and a combustor, wherein the furnace body comprises water collecting pipes positioned at two sides of the bottom, a water inlet of the furnace body is positioned on the water collecting pipes, the left side wall and the right side wall of the furnace body are membrane walls formed by a plurality of heat exchange pipes, the lower ends of the heat exchange pipes are communicated with the corresponding water collecting pipes, the front wall and the rear wall of the furnace body are respectively an interlayer, the interlayer is communicated with the water collecting pipes, two isolation tops are fixedly arranged in the furnace body, the isolation tops of the furnace body are inclined planes with low back and high front, fin heat exchange pipes are arranged below the inclined planes, the fin heat exchange pipes are communicated with the interlayer of the front wall and the rear wall of the furnace body, the two isolation tops divide the furnace body into a lower heat exchange chamber, a middle heat exchange chamber and an upper heat exchange chamber, the front ends of the isolation tops of the lower part and the upper parts are respectively provided with a first smoke flow port and a second smoke flow port, a collection bag is fixedly arranged at the upper end of the furnace body, a safety valve is arranged on the collection bag, the steam collecting drum is of a sandwich structure formed by two cylinders, the upper ends of the heat exchange tubes on the film wall are connected to the outer cylinder of the steam collecting drum and communicated with the interlayer, the inner cylinder from the rear part of the upper heat exchange chamber to the steam collecting drum is provided with a third flue gas flow port, the front part of the steam collecting drum is provided with an upward flue gas outlet, the steam collecting drum is connected with a steam outlet tube, a layer of upper aluminum alloy heat exchange tubes which are bent in a horizontal U shape is fixedly arranged below the steam collecting drum in the upper heat exchange chamber, a layer of lower aluminum alloy heat exchange tubes which are bent in a horizontal U shape are arranged below the isolating roof at the upper part, the inlet of the upper aluminum alloy heat exchange tubes is connected with the steam outlet tube, the outlet is connected with one end of the lower aluminum alloy heat exchange tubes, low-pressure high-temperature steam is output from the other end of the lower aluminum alloy heat exchange tubes, a liquid level meter mounting tube is arranged between the interlayer of the steam collecting drum and the water collecting tube, and the liquid level meter mounting tube is provided with a liquid level meter, the method is characterized in that: the two sides of the lower heat exchange chamber, which are close to the membrane wall, are respectively provided with a plurality of heat exchange pipes, the heat exchange pipes are communicated with the interlayer of the front wall and the back wall of the furnace body, and the burner is seamlessly and fixedly connected to a burner interface of the furnace body.
2. A horizontal low pressure high temperature steam generator according to claim 1, wherein: the combustion machine comprises a combustion chamber, wherein a grate is arranged at the bottom of the combustion chamber, an ash picking chamber is arranged below the grate, an arch-shaped top is arranged at the upper part of combustion, an arc-shaped jacket is arranged at the outer part of the arch-shaped top, a water interlayer is formed between the arc-shaped jacket and the arch-shaped top and is communicated with a front wall interlayer of the furnace body, the lower part of the combustion chamber is cuboid, a rectangular jacket is arranged at the outer part of the cuboid, an air interlayer is formed between the rectangular jacket and the cuboid, the air interlayer is isolated from the water interlayer, a blower is respectively arranged at the left side and the right side of the rectangular jacket, and a plurality of air inlets are formed in the peripheral wall of the lower part of the combustion chamber.
3. A horizontal low pressure high temperature steam generator according to claim 1, wherein: the heat exchange tubes are fin tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485369.7U CN219933943U (en) | 2023-06-12 | 2023-06-12 | Horizontal low-pressure high-temperature steam generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321485369.7U CN219933943U (en) | 2023-06-12 | 2023-06-12 | Horizontal low-pressure high-temperature steam generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219933943U true CN219933943U (en) | 2023-10-31 |
Family
ID=88488941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321485369.7U Active CN219933943U (en) | 2023-06-12 | 2023-06-12 | Horizontal low-pressure high-temperature steam generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219933943U (en) |
-
2023
- 2023-06-12 CN CN202321485369.7U patent/CN219933943U/en active Active
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