CN210398862U - Efficient shale-combustion gas-water pipe steam boiler - Google Patents
Efficient shale-combustion gas-water pipe steam boiler Download PDFInfo
- Publication number
- CN210398862U CN210398862U CN201920960635.4U CN201920960635U CN210398862U CN 210398862 U CN210398862 U CN 210398862U CN 201920960635 U CN201920960635 U CN 201920960635U CN 210398862 U CN210398862 U CN 210398862U
- Authority
- CN
- China
- Prior art keywords
- hearth
- combustion
- steam boiler
- upper drum
- water pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 12
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Abstract
The utility model provides a high-efficient shale gas water pipe steam boiler that fires, including combustor, first defend fire area, combustion-supporting wall, relief valve, furnace, main steam valve, go up boiler barrel, air-blower, chimney, condenser, first convection bank, second convection bank, access door, membrane wall, second defend fire area and boiler barrel down, last boiler barrel and boiler barrel parallel arrangement each other down, install furnace between this last boiler barrel and the boiler barrel down. The utility model discloses rational in infrastructure, energy-efficient has improved the combustion stability of low heat value shale gas greatly.
Description
Technical Field
The utility model relates to a steam boiler especially relates to a high-efficient shale gas water pipe steam boiler that fires.
Background
The shale gas refers to unconventional natural gas which is existed in a reservoir rock system mainly containing organic shale, can exist in natural cracks and pores in a free state, exists on the surfaces of kerogen and clay particles in an adsorption state, and is stored in the kerogen and the asphaltene in a dissolving state in a very small amount, and the proportion of the free gas is generally 20-85%.
The traditional boiler structure is not only reasonable in design, but also low in efficiency in the process of energy utilization and conversion.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a high-efficiency shale-combustion gas-water pipe steam boiler, which comprises a burner, a first convection bank, a combustion-supporting wall, a safety valve, a hearth, a main steam valve, an upper drum, an air blower, a chimney, a condenser, a first convection bank, a second convection bank, an access door, a membrane wall, a second convection bank and a lower drum, wherein the upper drum and the lower drum are arranged in parallel, the hearth is arranged between the upper drum and the lower drum, the first convection bank and the second convection bank which are arranged along the vertical direction and are communicated with the upper drum and the lower drum are arranged in the hearth, the burner communicated with the air blower is arranged at the outer side of the front part of the hearth, the condenser communicated with the upper drum is arranged at the tail part of the hearth, the main steam valve and the safety valve are arranged on the upper drum, the combustion-supporting wall is positioned at the bottom part in the hearth, a first burning preventive belt is installed at the front part in the hearth, a second burning preventive belt is installed at the tail part in the hearth, a membrane type wall is coated outside the hearth, and a repairing door and a chimney communicated with the hearth are arranged on the hearth.
The cross section of the membrane wall is arranged in a D shape, and the first convection tube bundle and the second convection tube bundle are close to the vertical section of the membrane wall.
The combustion-supporting wall is built by refractory bricks.
The condenser adopts spiral fin formula ND steel.
The access door corresponds to the first convection tube bundle and the second convection tube bundle.
The combustor is provided with program-controlled automatic ignition equipment and a flameout protection device, and a space is formed between the combustor and the air blower and communicated through a pipeline.
The utility model has the advantages that: through carrying out reasonable improvement to boiler structure, set up and carried out rational layout to first defending burning zone, combustion-supporting wall, first convection bank, second convection bank, access door, membrane wall and second defending burning zone, reach the environmental protection requirement, have high-efficient energy-conserving operation characteristics.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial left side view of fig. 1 of the present invention.
Detailed Description
The invention will be further described with reference to specific embodiments, the advantages and features of the invention will become more apparent as the description proceeds. These examples are merely illustrative and do not limit the scope of the invention in any way. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention, and that such changes and modifications are intended to be included within the scope of the invention.
Referring to fig. 1 and 2, the utility model relates to a high-efficiency shale-fired gas-water pipe steam boiler, which comprises a burner 1, a first sanitary combustion zone 2, a combustion-supporting wall 3, a safety valve 4, a hearth 5, a main steam valve 6, an upper barrel 7, an air blower 8, a chimney 9, a condenser 10, a first convection bank 11, a second convection bank 12, an access door 13, a membrane wall 14, a second sanitary combustion zone 15 and a lower barrel 16, wherein the upper barrel 7 and the lower barrel 16 are arranged in parallel, the hearth 5 is arranged between the upper barrel and the lower barrel, the first convection bank 11 and the second convection bank 12 which are arranged along the vertical direction and are communicated with the upper barrel and the lower barrel are arranged in the hearth, the first convection bank 11 and the second convection bank 12 have the functions of heating surfaces and the function of supporting the hearth, the burner 1 communicated with the air blower 8 is arranged on the outer side of the front part of the hearth, the tail of the hearth is provided with a condenser 10 communicated with the upper barrel, the upper barrel 7 is provided with a main steam valve 6 and a safety valve 4, the combustion-supporting wall 3 is positioned at the bottom in the hearth, the front part in the hearth is provided with a first burning guarding belt, the tail in the hearth is provided with a second burning guarding belt, the outside of the hearth 5 is coated with a membrane wall 14, and the hearth is provided with a repairing door 13 and a chimney 9 communicated with the hearth.
The cross section of the membrane wall 14 is arranged in a D shape, and the first convection tube bundle 11 and the second convection tube bundle 12 are close to the vertical section of the membrane wall 14.
The combustion-supporting wall 3 is built by refractory bricks, so that the temperature and the volume heat load of the hearth can be improved, the combustion stability of low-calorific-value shale gas is facilitated, and the water cooling degree of the hearth is reduced.
The condenser 10 is made of spiral fin type ND steel. The access door 13 corresponds to the first convection bank and the second convection bank.
The utility model discloses a theory of operation is: the steam enters an upper drum 7 after being pressurized by a feed pump, absorbs the heat of the flue gas, forms different gravity differences according to different absorbed heat by a hearth 5 with a radiation heating surface, a first convection tube bundle 11 and a second convection tube bundle 12 with a convection heating surface arranged between the upper drum 7 and a lower drum 16, and realizes natural circulation according to different temperature differences of water in the upper drum 7 and the lower drum 16, so that hot water rises, cold water falls, and generated high-temperature steam is discharged from a main steam valve 6 on the upper drum 7 and enters gas utilization equipment.
Combustion gas enters a special combustor 1 arranged on the front wall of the boiler through the assistance of an air blower 8 and is sprayed into a hearth 5 for reaction, the combustion gas is stably combusted under the action of a first combustion guard zone, a second combustion guard zone and a combustion-supporting wall 3, high-temperature radiation heat generated by combustion is absorbed by radiation heating surfaces around the hearth 5 and is converted into medium water in tubes of the radiation heating surfaces, high-temperature flue gas continuously enters a first convection tube bundle 11 and a second convection tube bundle 12, the high-temperature flue gas exchanges heat with the medium water in the two convection tube bundles and then sequentially enters a condenser 10, the heat is further converted into the medium water in heat exchange tubes of the condenser 10, and low-temperature flue gas after heat exchange is discharged into the atmosphere through a chimney.
Claims (6)
1. A high-efficiency shale-combustion gas-water pipe steam boiler is characterized by comprising a burner 1, a first combustion-supporting belt, a combustion-supporting wall, a safety valve, a hearth, a main steam valve, an upper drum, an air blower, a chimney, a condenser, a first convection tube bundle, a second convection tube bundle, an access door, a membrane wall, a second combustion-supporting belt and a lower drum, wherein the upper drum and the lower drum are arranged in parallel, the hearth is arranged between the upper drum and the lower drum, the first convection tube bundle and the second convection tube bundle which are arranged in the vertical direction and are communicated with the upper drum and the lower drum are arranged in the hearth, the burner communicated with the air blower is arranged on the outer side of the front part of the hearth, the condenser communicated with the upper drum is arranged at the tail part of the hearth, the main steam valve and the safety valve are arranged on the upper drum, the combustion-supporting wall is positioned at the bottom part in the hearth, the first combustion-supporting belt is arranged at the front part in the hearth, the tail part in the hearth is provided with a second burning guarding belt, the outside of the hearth is coated with a membrane wall, and the hearth is provided with a repairing door and a chimney communicated with the hearth.
2. The high efficiency shale gas water tube steam boiler according to claim 1, wherein the cross section of the membrane wall is D-shaped, and the first and second convective tube bundles are proximate to the vertical section of the membrane wall.
3. A high efficiency shale-fired water pipe steam boiler as claimed in claim 1, wherein said combustion supporting wall is constructed of refractory bricks.
4. The high efficiency shale-fired gas-water tube steam boiler of claim 1, wherein the condenser is of spiral fin type ND steel.
5. A high efficiency shale-fired water-tube steam boiler as claimed in claim 1, wherein said access door corresponds to said first and second convection tube bundles.
6. A high efficiency shale gas water pipe steam boiler as claimed in claim 1, wherein said combustor is provided with a programmed auto-ignition device and a flameout protection device, said combustor is spaced from the blower and is connected to the blower by a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920960635.4U CN210398862U (en) | 2019-06-25 | 2019-06-25 | Efficient shale-combustion gas-water pipe steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920960635.4U CN210398862U (en) | 2019-06-25 | 2019-06-25 | Efficient shale-combustion gas-water pipe steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210398862U true CN210398862U (en) | 2020-04-24 |
Family
ID=70350491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920960635.4U Expired - Fee Related CN210398862U (en) | 2019-06-25 | 2019-06-25 | Efficient shale-combustion gas-water pipe steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210398862U (en) |
-
2019
- 2019-06-25 CN CN201920960635.4U patent/CN210398862U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200424 |