CN118031416A - Low hydrocarbon tail gas boiler with embedded pipe - Google Patents
Low hydrocarbon tail gas boiler with embedded pipe Download PDFInfo
- Publication number
- CN118031416A CN118031416A CN202211358183.5A CN202211358183A CN118031416A CN 118031416 A CN118031416 A CN 118031416A CN 202211358183 A CN202211358183 A CN 202211358183A CN 118031416 A CN118031416 A CN 118031416A
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- Prior art keywords
- tail gas
- embedded
- hydrocarbon tail
- pipe
- communicated
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- 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.)
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- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 72
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 71
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 71
- 238000002485 combustion reaction Methods 0.000 claims abstract description 59
- 230000005855 radiation Effects 0.000 claims abstract description 25
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000007921 spray Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 89
- 238000000034 method Methods 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 6
- 238000007254 oxidation reaction Methods 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000003009 desulfurizing effect Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 231100000004 severe toxicity Toxicity 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Abstract
The invention belongs to the technical field of gas treatment, and discloses an embedded pipe low hydrocarbon tail gas boiler, wherein a radiation section and a convection section are arranged in a boiler body of the boiler, the radiation section is communicated with a burner, and heat exchange pipes communicated with an external water supply preheater are arranged in the radiation section and the convection section; the embedded pipe low hydrocarbon tail gas boiler also comprises an embedded combustion pipe, wherein the embedded combustion pipe is arranged at one end, close to the burner, in the radiation section, and the air inlet end of the embedded combustion pipe penetrates out of the furnace body; the air outlet end of the embedded combustion tube is communicated with the inlet end of the convection section; the outside of the boiler body of the boiler is also provided with a mixer which is communicated with the embedded combustion pipe; the outlet end of the convection section is communicated with a desulfurization device to desulfurize the gas flowing out of the convection section. The low light hydrocarbon tail gas is oxidized at high temperature in the embedded combustion pipe to consume light hydrocarbon and H 2 S through the stable high temperature environment of the embedded combustion pipe in the boiler, so that the problem that the low hydrocarbon tail gas has low calorific value and cannot be combusted is solved, and the cost for treating the low light hydrocarbon tail gas is reduced.
Description
Technical Field
The invention relates to the technical field of gas treatment, in particular to an embedded pipe low-hydrocarbon tail gas boiler.
Background
Low light hydrocarbon tail gas is mainly produced in oil and gas fields developed by gas injection, such as air injection, oxygen reduction air, nitrogen, carbon dioxide and the like. Mainly comprises light hydrocarbon, N 2、CO2、CO、H2 S and other gases. Wherein the light hydrocarbon content is only 5-10%, and the other gases are about 85-90%
Because the light hydrocarbon content is low, the tail gas calorific value is low, the stable combustion is difficult to maintain independently, and the air can not be directly discharged after the ignition. Meanwhile, the tail gas yield is high, and the incineration stability is also affected after the tail gas is mixed with common tail gas. On the other hand, the tail gas not only contains light hydrocarbon, but also contains H 2 S gas, so that potential safety hazards are caused. H 2 S is a toxic gas, has the characteristics of easy combustion, strong corrosion and severe toxicity, can poison people under the condition that the concentration exceeds 66.3mg/m < 3 >, and can seriously cause death. The untreated H 2 S gas concentration range of the air injection well group is 8.6-489.9 mg/m3, and the average content is 62mg/m3. The lower explosive limit of light hydrocarbons is lower, for example, methane has a lower explosive limit of 5% and ethane has a lower explosive limit of 3%. Therefore, the injected air exhaust gas cannot be directly discharged into the air, and the air must be treated before being discharged. The existing treatment methods for the low light hydrocarbon tail gas mainly comprise the following steps:
The main disadvantage of the dry/wet desulfurization technology is that the device has small treatment capacity, and if a large amount of tail gas is treated, the cost of equipment of a large desulfurization device is high, and the cost of medicament required for treatment is also high. RTO regenerative thermal oxidation technology and catalytic oxidation technology have complex processes, high device cost and high tail gas treatment cost. For the pressure swing adsorption method, the process of the method for separating the light hydrocarbons in the tail gas is complex and immature, and low-cost tail gas treatment is difficult to realize.
Disclosure of Invention
The invention aims to provide an embedded pipe low-hydrocarbon tail gas boiler, which can effectively reduce the cost of treating low-light hydrocarbon tail gas, improve the utilization rate of low-light hydrocarbon tail gas energy and greatly improve the tail gas treatment capacity.
To achieve the purpose, the invention adopts the following technical scheme:
The boiler body of the embedded pipe low hydrocarbon tail gas boiler is internally provided with a radiation section and a convection section, the radiation section is communicated with a burner, and heat exchange pipes communicated with an external water supply preheater are arranged in the radiation section and the convection section; the embedded pipe low hydrocarbon tail gas boiler further comprises:
an embedded combustion tube arranged at one end of the radiant section near the burner,
The air inlet end of the embedded combustion tube penetrates out of the furnace body; the air outlet end of the embedded combustion tube is communicated with the inlet end of the convection section;
the mixer is arranged outside the furnace body and is communicated with the embedded combustion pipe;
and the inlet end of the desulfurization device is communicated with the outlet end of the convection section so as to desulfurize the gas flowing out of the convection section.
Preferably, the embedded combustion pipe is a coil pipe, and a pipe body of the embedded combustion pipe is arranged between the outlet end of the combustor and the heat exchange pipe arranged in the radiation section; the air outlet end of the embedded combustion tube passes through the heat exchange tube and is communicated with the convection section.
Preferably, the tube body of the in-line burner occupies 1/3 of the area of the radiant section.
Preferably, a surge tank is further provided, and the surge tank is disposed at the air outlet end of the mixer.
Preferably, a blower is further arranged between the mixer and the surge tank, and a single-flow valve is arranged between the blower and the surge tank to supply air to the surge tank in a single direction.
Preferably, a gas flow meter is further provided, and the gas flow meter is provided at the air inlet end of the mixer.
Preferably, the air inlet end of the mixer is provided with a gas flow valve.
Preferably, two component monitors are also provided, one of which is provided at the outlet end of the desulfurization device and the other of which is provided at the inlet end of the mixer.
Preferably, a spray head is arranged at the top of the desulfurization device.
Preferably, the outlet of the convection section is communicated with the side wall of the desulfurization device close to the bottom.
The invention has the beneficial effects that:
Through the stable high temperature environment of embedded combustion tube in the boiler, make low light hydrocarbon tail gas take place high temperature oxidation in the embedded combustion tube in order to consume light hydrocarbon and H 2 S, solve low hydrocarbon tail gas calorific value and low problem that can not burn, can utilize the heat that low light hydrocarbon tail gas high temperature oxidation gives off simultaneously to continue heating the heat transfer pipe in boiler radiant section and the convection section, realize reducing the cost of handling low light hydrocarbon tail gas, improve the utilization ratio of low light hydrocarbon tail gas energy to can improve tail gas throughput greatly.
Drawings
FIG. 1 is a schematic diagram of an in-line low hydrocarbon tail gas boiler of the present invention.
In the figure:
1-a radiation section; 2-convection section; 3-burner; 4-a feed water preheater; 5-a heat exchange tube; 6-embedding a combustion tube; 7-a mixer; 8-a desulfurizing device; 81-a sprinkler; 9-a surge tank; 10-blower; 20-uniflow valve; 30-component monitor; 40-a gas flow meter; 50-gas flow valve.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
As shown in fig. 1, the embodiment provides an embedded pipe low hydrocarbon tail gas boiler, wherein a radiation section 1 and a convection section 2 are arranged in a boiler body of the boiler, the radiation section 1 is communicated with a burner 3, and a heat exchange pipe 5 communicated with an external water supply preheater 4 is arranged in the radiation section 1 and the convection section 2; the embedded pipe low hydrocarbon tail gas boiler also comprises an embedded combustion pipe 6, wherein the embedded combustion pipe 6 is arranged at one end, close to the burner 3, in the radiation section 1, and the air inlet end of the embedded combustion pipe 6 penetrates out of the furnace body; the air outlet end of the embedded combustion tube 6 is communicated with the inlet end of the convection section 2; the outside of the boiler body of the boiler is also provided with a mixer 7, and the mixer 7 is communicated with the embedded combustion pipe 6; the outlet end of the convection section 2 is communicated with a desulfurizing device 8 for desulfurizing the gas flowing out of the convection section 2.
The stable high-temperature environment is provided in the boiler through the embedded combustion pipe 6, so that the low-light hydrocarbon tail gas is oxidized at high temperature in the embedded combustion pipe 6 to consume light hydrocarbon and H 2 S, the problem that the heat value of the low-hydrocarbon tail gas is low and cannot be combusted is solved, meanwhile, the heat released by high-temperature oxidation of the low-light hydrocarbon tail gas can be utilized to continuously heat the heat exchange pipes 5 in the radiation section 1 and the convection section 2 of the boiler, the cost for treating the low-light hydrocarbon tail gas is reduced, the utilization rate of the energy of the low-light hydrocarbon tail gas is improved, and the tail gas treatment capacity is greatly improved.
Referring to fig. 1, an embodiment of the present invention is described in detail, in which an embedded tube low hydrocarbon tail gas boiler (the low hydrocarbon tail gas mainly includes H2S, methane, ethane, etc.) is provided, a radiation section 1 and a convection section 2 are provided in a boiler body of the boiler, the radiation section 1 is connected with a burner 3, and heat exchange tubes 5 connected with an external water supply preheater 4 are provided in the radiation section 1 and the convection section 2; the embedded pipe low hydrocarbon tail gas boiler further comprises an embedded combustion pipe 6, wherein the embedded combustion pipe 6 is arranged at one end of the radiation section 1, which is close to the burner 3, and the air inlet end of the embedded combustion pipe 6 penetrates out of the furnace body to be communicated with an air pipe of an external gas-liquid separation device (not shown in the figure). Specifically, the embedded combustion tube 6 is a coil, and the tube body of the embedded combustion tube 6 is arranged between the outlet end of the burner 3 and the heat exchange tube 5 arranged in the radiation section 1; in this embodiment, the embedded combustion tube 6 is arranged in a coil form, and is independently present in the radiant section 1 of the furnace body, the gas inside the embedded combustion tube 6 is not in direct contact with the furnace body before being discharged, SO that the time of the low hydrocarbon tail gas in the embedded combustion tube 6 is prolonged, the low hydrocarbon tail gas is oxidized at high temperature in the embedded combustion tube 6, light hydrocarbons and H 2 S are consumed (the light hydrocarbons and H 2 S in the tail gas are oxidized to generate SO 2+CO2+H2 O), and the flame combustion of the radiant section 1 is not affected by injecting a large amount of low hydrocarbon tail gas because the low hydrocarbon tail gas is not in direct contact with the burner 3.
Further, the tube body of the embedded combustion tube 6 occupies 1/3 of the whole area of the radiation section 1, and the arrangement can enable the tube body of the embedded combustion tube 6 to be closer to the burner 3, so that the temperature inside the embedded combustion tube 6 is ensured, and the low hydrocarbon tail gas in the embedded combustion tube 6 can be combusted more efficiently; furthermore, even after the flame length and the radius of the burner 3 are properly adjusted, the pipe body of the embedded combustion pipe 6 can be always in the surrounding of the flame of the burner 3, so that stagnation is avoided when the low hydrocarbon tail gas of the embedded combustion pipe 6 is treated. Wherein the air outlet end of the embedded combustion tube 6 passes through the heat exchange tube 5 and is communicated with the inlet end of the convection section 2; the heat released when the low hydrocarbon tail gas is combusted through the embedded combustion pipe 6 and the discharged high-temperature flue gas can further exchange heat with cold water in the heat exchange pipe 5 in the combustion chamber and cold water in the heat exchange pipe 5 in the convection section 2, the purpose of efficiently treating and utilizing the low light hydrocarbon tail gas is achieved by further utilizing the residual heat, the residual heat is fully utilized to save resources, and meanwhile, the temperature of the treated gas can be reduced.
The outlet end intercommunication of embedded pipe low hydrocarbon tail gas boiler's convection section 2 has the desulphurization unit 8 in order to carry out the desulfurization (to SO 2) to the gas that flows out from convection section 2, specifically, desulphurization unit 8 is the desulfurizing tower in this embodiment, the outlet end of convection section 2 is connected to desulphurization unit 8, and further, the interior top of desulphurization unit 8 is provided with sprinkler head 81, and sprinkler head 81 sprays 25% concentration limestone slurry in this embodiment and carries out the desulfurization to the gas that flows out from convection section 2, and the calcium sulfite that produces can continue to produce gypsum and use simultaneously, and unnecessary limestone slurry can continue to recycle and use in order to make full use of the gas resource of getting rid of. Further, the outlet of the convection section 2 is communicated with the side wall, close to the bottom, of the desulfurization device 8, and more reactions can be generated through upward movement of gas, so that the desulfurization process is accelerated. The outlet end of the desulfurization device 8 is provided with a component monitor 30 to detect the discharged gas, if the SO 2 is found to exceed the standard, the concentration or the spraying amount of the limestone slurry sprayed in the desulfurization tower can be controlled, or the air inflow of the low-light hydrocarbon tail gas can be controlled, SO that the discharged gas meets the standard.
The embedded pipe low hydrocarbon tail gas boiler is further provided with a mixer 7, the mixer 7 is arranged outside the boiler body and communicated with the embedded combustion pipe 6, the low hydrocarbon tail gas is doped with air through the mixer 7, the concentration of the combustible gas is reduced to be below the explosion lower limit of 25%, and the low hydrocarbon tail gas is prevented from being burnt in the embedded combustion pipe 6 to be dangerous. Further, the air outlet end of the mixer 7 is provided with a pressure stabilizing tank 9, the pressure stabilizing tank 9 is communicated with the embedded combustion pipe 6, so that the gas entering the embedded combustion pipe 6 is stabilized, the pressure of the pressure stabilizing tank 9 in the embodiment is 0.5Mpa, and the low-hydrocarbon tail gas is guaranteed not to flow back after high-temperature oxidation and expansion. Further, a blower 10 is further provided between the mixer 7 and the surge tank 9, and a check valve 20 is provided between the blower 10 and the surge tank 9 to check air supply to the surge tank 9. The low hydrocarbon tail gas passes through a blower 10, and the low hydrocarbon tail gas and air together pass through a check valve 20 to enter the surge tank 9. Further, the air inlet end of the mixer 7 is further provided with a component monitor 30 and a gas flowmeter 40, and the H 2 S and the light hydrocarbon content in the low hydrocarbon tail gas are monitored through the component monitor 30 and the gas flowmeter 40, so that a basis is provided for controlling the air doping amount in the mixer 7 and the combustion intensity in the embedded combustion tube 6, and a better treatment effect can be achieved. Further, the gas inlet end of the mixer 7 is provided with a gas flow valve 50, so that the entering amount of the low hydrocarbon tail gas can be controlled through the gas flow valve 50, and the reaction process can be controlled at any time.
Therefore, the embedded pipe low-hydrocarbon tail gas boiler provided by the embodiment can effectively reduce the cost of treating low-light hydrocarbon tail gas, improve the utilization rate of low-light hydrocarbon tail gas energy and greatly improve the tail gas treatment capacity.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (10)
1. The embedded pipe low hydrocarbon tail gas boiler is characterized in that a radiation section (1) and a convection section (2) are arranged in a furnace body of the embedded pipe low hydrocarbon tail gas boiler, the radiation section (1) is communicated with a combustor (3), and a heat exchange pipe (5) communicated with an external water supply preheater (4) is arranged in the radiation section (1) and the convection section (2); the embedded pipe low hydrocarbon tail gas boiler further comprises:
An embedded combustion tube (6), wherein the embedded combustion tube (6) is arranged at one end of the radiation section (1) close to the burner (3),
The air inlet end of the embedded combustion tube (6) penetrates out of the furnace body; the air outlet end of the embedded combustion tube (6) is communicated with the inlet end of the convection section (2);
the mixer (7) is arranged outside the furnace body and is communicated with the embedded combustion pipe (6);
And the inlet end of the desulfurization device (8) is communicated with the outlet end of the convection section (2) so as to desulfurize the gas flowing out of the convection section (2).
2. The embedded pipe low hydrocarbon tail gas boiler according to claim 1, wherein the embedded combustion pipe (6) is a coil pipe, and a pipe body of the embedded combustion pipe (6) is arranged between an outlet end of the burner (3) and the heat exchange pipe (5) arranged in the radiation section (1); the air outlet end of the embedded combustion tube (6) penetrates through the heat exchange tube (5) to be communicated with the convection section (2).
3. The in-line low hydrocarbon tail gas boiler according to claim 2, characterized in that the tube body of the in-line burner tube (6) occupies 1/3 of the radiant section (1).
4. The in-line low hydrocarbon tail gas boiler according to claim 1, further comprising a surge tank (9), wherein the surge tank (9) is disposed at the outlet end of the mixer (7).
5. The embedded pipe low hydrocarbon tail gas boiler according to claim 4, wherein a blower (10) is further arranged between the mixer (7) and the surge tank (9), and a single flow valve (20) is arranged between the blower (10) and the surge tank (9) to supply air to the surge tank (9) in a single direction.
6. The in-line low hydrocarbon tail gas boiler according to claim 1, further provided with a gas flow meter (40), said gas flow meter (40) being arranged at the inlet end of said mixer (7).
7. The in-line low hydrocarbon tail gas boiler according to claim 1, characterized in that the inlet end of the mixer (7) is provided with a gas flow valve (50).
8. The in-line low hydrocarbon tail gas boiler according to claim 1, further provided with two component monitors (30), one of which is provided at the outlet end of the desulfurization device (8) and the other of which is provided at the inlet end of the mixer (7).
9. The in-line low hydrocarbon tail gas boiler according to any of the claims 1 to 7, characterized in that the top of the desulfurization device (8) is provided with a spray head (81).
10. The in-line low hydrocarbon tail gas boiler according to claim 9, wherein the outlet of the convection section (2) is connected to the side wall of the desulfurization device (8) near the bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211358183.5A CN118031416A (en) | 2022-11-01 | 2022-11-01 | Low hydrocarbon tail gas boiler with embedded pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211358183.5A CN118031416A (en) | 2022-11-01 | 2022-11-01 | Low hydrocarbon tail gas boiler with embedded pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118031416A true CN118031416A (en) | 2024-05-14 |
Family
ID=90988131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211358183.5A Pending CN118031416A (en) | 2022-11-01 | 2022-11-01 | Low hydrocarbon tail gas boiler with embedded pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118031416A (en) |
-
2022
- 2022-11-01 CN CN202211358183.5A patent/CN118031416A/en active Pending
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