CN207262700U - A kind of flue gas waste heat recovery water jacket furnace - Google Patents
A kind of flue gas waste heat recovery water jacket furnace Download PDFInfo
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- CN207262700U CN207262700U CN201721066715.2U CN201721066715U CN207262700U CN 207262700 U CN207262700 U CN 207262700U CN 201721066715 U CN201721066715 U CN 201721066715U CN 207262700 U CN207262700 U CN 207262700U
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- natural gas
- furnace body
- outlet conduit
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- water jacket
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The utility model discloses a kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube, smoke box and furnace body；Natural gas outlet conduit after Imported gas pipeline and level-one heating is connected with furnace body, throttle valve is provided with natural gas outlet conduit after level-one heating, bypass pyrotechnics pipeline is connected with smoke box, bypass and be connected with heat exchanger on pyrotechnics pipeline；Natural gas outlet conduit accesses furnace body again after connecting heat exchanger by natural gas line after throttling after level-one heating；Natural gas outlet conduit after two level heats is provided with furnace body.The utility model bypasses by adding a bypass pyrotechnics pipeline on smoke box and is connected with heat exchanger on pyrotechnics pipeline.The waste heat conveying of flue gas is come by bypassing pyrotechnics pipeline, natural gas line temperature after rise throttling, the too low generation hydrate of natural gas line temperature causes natural gas line ice to block up after avoiding throttling.Under requirement of the auxiliary hot natural gas line to certain temperature, the combustion material that water jacket furnace uses can be further reduced, reduces production cost.Fume afterheat just discharges the environmental pollution of generation.
Description
Technical field
The utility model belongs to exploitation of oil-gas field technical field, and in particular to a kind of flue gas waste heat recovery water jacket furnace.
Background technology
Gas Exploitation, gathering station field well head pressure are excessive, and generally requiring could outer defeated, throttling process after what throttles
Obvious pressure and temperature can be produced to decline, to prevent that natural gas line temperature is low after throttling, causes pipeline ice to block up, need to use water
Stove heat is covered, at present, Gas Exploitation, gathering station field generally use indirect type water jacket furnace to heat natural gas line,
Its principle of heating is to directly heat smoke-fire-tube using the thermal-flame of gas burner injection, high-temperature flue gas through smoke outlet tube into
Enter smoke box, be then emitted into air through pyrotechnics pipeline.In heating process, after the water near smoke-fire-tube and smoke outlet tube is heated
Rises because density reduces, declines with temperature after gas coil pipe transmission of heat by contact, and sink because density increases, not only it is heated afterwards but also on
Rise, so constantly circulation, to heat the natural gas in gas coil pipe, achieve the purpose that to improve gas flow temperature.Water jacket furnace exists
During, easy to operate, safe and reliable to operation, the advantages that the degree of automation is high is primarily present.
But there are problems with for current water jacket furnace：Pipeline after partial throttling can only be heated, and water jacket furnace
Throttle point and the larger point of elbow thermal losses are not heated on the contrary, and the efficiency of heating surface is relatively low to cause energy dissipation, flue gas heat
Amount on the spot exhaust emission environment, portion of natural gas pipeline can only be heated, burn the larger security hidden trouble such as insufficient.
It is CN206235006U that State Intellectual Property Office disclosed notification number on 06 09th, 2017, a kind of entitled section
Can water jacket furnace utility model patent, a kind of energy-saving water jacket furnace, including housing, burner, heating coil are disclosed, on burner
Side sets smoke outlet tube, and one end of smoke outlet tube is located at outside housing and connection heat exchanger, heat exchanger connection chimney, heat
Finned heating coil is set in exchanger, and the both ends of heating coil are respectively communicated with air intlet and air outlet slit, and air goes out
Mouth connects burner by wind turbine.
After above-mentioned energy-saving water jacket furnace heated natural gas pipeline, natural gas line still has ice and blocks up possibility；And flue gas
Waste heat does not also make full use of, and exhaust emission environment still has on the spot.
Utility model content
In order to solve above-mentioned problems of the prior art, the utility model proposes a kind of flue gas waste heat recovery water jacket
Stove, realize can flue gas waste heat recovery and realize auxiliary heating, rise throttling after natural gas line temperature, avoid throttling
The too low generation hydrate of natural gas line temperature causes the purpose that natural gas line ice blocks up afterwards.In auxiliary hot natural gas line to certain
Under the requirement of temperature, the combustion material that water jacket furnace uses can be further reduced, reduces production cost, fractional energy savings reaches more than 20%.
The utility model employs following technical scheme：
A kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube, smoke box and furnace body；Day is connected with furnace body
Natural gas outlet conduit after right gas inlet pipeline and level-one heating, it is characterised in that：Natural gas outlet after the level-one heating
Throttle valve is provided with road, bypass pyrotechnics pipeline is connected with the smoke box, heat exchanger is connected with the bypass pyrotechnics pipeline；
Natural gas outlet conduit accesses furnace body again after connecting heat exchanger by natural gas line after throttling after the level-one heating；The stove
Natural gas outlet conduit after two level heats is provided with body.
Further, the throttle valve of the utility model is natural after being arranged on natural gas outlet conduit after level-one heats and throttling
Between feed channel.
Further, the bottom of furnace body of the utility model is provided with sewage draining exit.
Further, it is connected with expansion tank at the top of the furnace body of the utility model.
Further, the heat exchanger of the utility model is movable tube sheets heat exchanger, fixed tube-sheet exchanger, U-tube plate change
Hot device or plate heat exchanger.
Further, the bottom of furnace body of the utility model is provided with furnace body and the hanging bearing in ground.
Further, the bypass pyrotechnics pipeline of the utility model is drawn from the junction of smoke box and furnace body, and bypasses pyrotechnics
A diameter of 20-30cm of pipeline.
The beneficial effect that the utility model is brought has：
1st, the utility model is bypassed to be connected with pyrotechnics pipeline and changed by adding a bypass pyrotechnics pipeline on smoke box
Hot device.The waste heat conveying of flue gas is come by bypassing pyrotechnics pipeline, natural gas line temperature after rise throttling.Heated by auxiliary
Throttling after natural gas line enter after furnace body second heats and discharged again from natural gas outlet conduit after two level heating.This practicality
It is new to carry out auxiliary heating to natural gas line after throttling using discharging in flue gas waste heat, avoid natural gas line temperature after throttling
Too low generation hydrate causes natural gas line ice to block up.
2nd, the utility model prevents generation hydrate：If hydrate, natural gas tube are generated after throttling in natural gas line
Road ice blocks up, and necessarily causes upstream line safety valve jumping up, and natural gas can be released emptying burning, cause huge waste.
3rd, the utility model does not introduce new heat source, but make use of the waste heat of discharge flue gas, does not increase environment dirt
Dye, manufacture is low with using the cost of the utility model, under requirement of the auxiliary hot natural gas line to certain temperature, can further subtract
The combustion material that few water jacket furnace uses, reduces production cost, and fractional energy savings reaches more than 20%.
4th, the bottom of furnace body of the utility model is provided with sewage draining exit, can discharge the impurity such as the water in heating process, carry
The internal environment clean level of high whole furnace body, while the part that the heating needs for allowing heat more to concentrate heat.
5th, the utility model is provided with the hanging bearing of furnace body, reduces the radiating surface that furnace body is directly contacted with bottom surface
Product, effectively increases heat utilization efficiency.
6th, the utility model at the top of furnace body by setting expansion tank, easy to observe the situation of furnace interior,
Improve the visuality of operation.
7th, the bypass pyrotechnics pipeline of the utility model is drawn from nearest distance, and the diameter for bypassing pyrotechnics pipeline is small, subtracts
Few heat scatters and disappears, and more heats are provided for follow-up auxiliary heating.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model.
Fig. 2 is the schematic diagram of II part of Fig. 1.
Brief description of the drawings:1 is Imported gas pipeline, and 2 be throttle valve, and 3 be natural gas outlet conduit after level-one heating, and 4 are
Natural gas line after throttling, 5 be heat exchanger, and 6 be natural gas outlet conduit after two level heating, and 7 be bearing, and 8 be sewage draining exit, and 9 are
Pyrotechnics pipeline is bypassed, 10 be smoke box, and 11 be smoke-fire-tube, and 12 be expansion tank, and 13 be furnace body.
Embodiment
Embodiment 1
The present embodiment is preferred forms.
As depicted in figs. 1 and 2：A kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube 11,10 and of smoke box
Furnace body 13；Be connected with furnace body 13 Imported gas pipeline 1 and level-one heating after natural gas outlet conduit 3, level-one heating the day after tomorrow
Throttle valve 2 is provided with right gas outlet conduit 3, bypass pyrotechnics pipeline 9, the bypass pyrotechnics pipeline are connected with the smoke box 10
Heat exchanger 5 is connected with 9；Natural gas outlet conduit 3 connects heat exchanger by natural gas line after throttling 4 after the level-one heating
Furnace body 13 is accessed after 5 again；Natural gas outlet conduit 6 after two level heats is provided with the furnace body 13.
Further, the throttle valve 2 of the utility model is arranged on natural gas outlet conduit 3 and the day after tomorrow that throttles after level-one heating
Between right feed channel 4.
Further, 13 bottom of furnace body of the utility model is provided with sewage draining exit 8.
Further, the top of furnace body 13 of the utility model is connected with expansion tank 12.The top of expansion tank 12 is set
There is observation window.
Further, the heat exchanger 5 of the utility model is movable tube sheets heat exchanger, fixed tube-sheet exchanger, U-tube plate change
Hot device or plate heat exchanger.
Further, 13 bottom of furnace body of the utility model is provided with furnace body 13 and the hanging bearing 7 in ground.
Further, the height of bearing 7 described in the utility model is 2-4m.
The process for using of the utility model is as follows：Gas Exploitation, gathering station well head natural gas through repeatedly throttling after, pressure and
Temperature declines, into water jacket stove heat.The natural gas temperature of Imported gas pipeline 1 is 20-26 DEG C, into furnace body 13 for the first time
45-50 DEG C is heated to, natural gas outlet conduit 3 exports after being heated by level-one, is set on level-one heated natural gas outlet conduit
There is throttle valve 2, temperature is reduced to 20-25 DEG C or so after the throttling of throttle valve 2.Meanwhile draw a bypass pyrotechnics pipeline from smoke box 10
9, the heat of 130-170 DEG C or so flue gas and the natural gas in natural gas line 4 after throttling in pyrotechnics pipeline 9 is bypassed, passes through plate
Formula heat exchanger, carries out flue gas heat recovery.By natural gas line 4 after the throttling of auxiliary heating second is carried out into furnace body 13
Secondary heating, 40-45 DEG C is heated to natural gas line after throttling 4, and natural gas outlet conduit 6 enters life after being heated by two level
Produce pipeline.
The utility model has the advantages that fully being exchanged heat, the thermal efficiency is high, environmentally safe, and cost is extremely low.
Embodiment 2
The present embodiment is basic embodiment.
A kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube 11, smoke box 10 and furnace body 13；On furnace body 13
Natural gas outlet conduit 3 after Imported gas pipeline 1 and level-one heating is connected with, after level-one heating on natural gas outlet conduit 3
Throttle valve 2 is provided with, bypass pyrotechnics pipeline 9 is connected with the smoke box 10, heat exchanger is connected with the bypass pyrotechnics pipeline 9
5；Natural gas outlet conduit 3 accesses furnace body again after connecting heat exchanger 5 by natural gas line after throttling 4 after the level-one heating
13；Natural gas outlet conduit 6 after two level heats is provided with the furnace body 13.
Embodiment 3
The present embodiment is a better embodiment.
A kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube 11, smoke box 10 and furnace body 13；On furnace body 13
Natural gas outlet conduit 3 after Imported gas pipeline 1 and level-one heating is connected with, after level-one heating on natural gas outlet conduit 3
Throttle valve 2 is provided with, bypass pyrotechnics pipeline 9 is connected with the smoke box 10, heat exchanger is connected with the bypass pyrotechnics pipeline 9
5；Natural gas outlet conduit 3 accesses furnace body again after connecting heat exchanger 5 by natural gas line after throttling 4 after the level-one heating
13；Natural gas outlet conduit 6 after two level heats is provided with the furnace body 13.
Further, the throttle valve 2 of the utility model is arranged on natural gas outlet conduit 3 and the day after tomorrow that throttles after level-one heating
Between right feed channel 4.
Embodiment 4
The present embodiment is a better embodiment.
A kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube 11, smoke box 10 and furnace body 13；On furnace body 13
Natural gas outlet conduit 3 after Imported gas pipeline 1 and level-one heating is connected with, after level-one heating on natural gas outlet conduit 3
Throttle valve 2 is provided with, bypass pyrotechnics pipeline 9 is connected with the smoke box 10, heat exchanger is connected with the bypass pyrotechnics pipeline 9
5；Natural gas outlet conduit 3 accesses furnace body again after connecting heat exchanger 5 by natural gas line after throttling 4 after the level-one heating
13；Natural gas outlet conduit 6 after two level heats is provided with the furnace body 13.
Further, 13 bottom of furnace body of the utility model is provided with sewage draining exit 8.
Further, the bypass pyrotechnics pipeline 9 of the utility model is drawn from the junction of smoke box 10 and furnace body 13, and is bypassed
A diameter of 20-30cm of pyrotechnics pipeline 9.
Embodiment 5
The present embodiment is a better embodiment.
A kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube 11, smoke box 10 and furnace body 13；On furnace body 13
Natural gas outlet conduit 3 after Imported gas pipeline 1 and level-one heating is connected with, after level-one heating on natural gas outlet conduit 3
Throttle valve 2 is provided with, bypass pyrotechnics pipeline 9 is connected with the smoke box 10, heat exchanger is connected with the bypass pyrotechnics pipeline 9
5；Natural gas outlet conduit 3 accesses furnace body again after connecting heat exchanger 5 by natural gas line after throttling 4 after the level-one heating
13；Natural gas outlet conduit 6 after two level heats is provided with the furnace body 13.
Further, the throttle valve 2 of the utility model is arranged on natural gas outlet conduit 3 and the day after tomorrow that throttles after level-one heating
Between right feed channel 4.
Further, the top of furnace body 13 of the utility model is connected with expansion tank 12.
Embodiment 6
The present embodiment is a better embodiment.
A kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube 11, smoke box 10 and furnace body 13；On furnace body 13
Natural gas outlet conduit 3 after Imported gas pipeline 1 and level-one heating is connected with, after level-one heating on natural gas outlet conduit 3
Throttle valve 2 is provided with, bypass pyrotechnics pipeline 9 is connected with the smoke box 10, heat exchanger is connected with the bypass pyrotechnics pipeline 9
5；Natural gas outlet conduit 3 accesses furnace body again after connecting heat exchanger 5 by natural gas line after throttling 4 after the level-one heating
13；Natural gas outlet conduit 6 after two level heats is provided with the furnace body 13.
Further, the throttle valve 2 of the utility model is arranged on natural gas outlet conduit 3 and the day after tomorrow that throttles after level-one heating
Between right feed channel 4.
Further, the heat exchanger 5 of the utility model is movable tube sheets heat exchanger, fixed tube-sheet exchanger, U-tube plate change
Hot device or plate heat exchanger.
Embodiment 7
The present embodiment is a better embodiment.
A kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube 11, smoke box 10 and furnace body 13；On furnace body 13
Natural gas outlet conduit 3 after Imported gas pipeline 1 and level-one heating is connected with, after level-one heating on natural gas outlet conduit 3
Throttle valve 2 is provided with, bypass pyrotechnics pipeline 9 is connected with the smoke box 10, heat exchanger is connected with the bypass pyrotechnics pipeline 9
5；Natural gas outlet conduit 3 accesses furnace body again after connecting heat exchanger 5 by natural gas line after throttling 4 after the level-one heating
13；Natural gas outlet conduit 6 after two level heats is provided with the furnace body 13.
Further, the throttle valve 2 of the utility model is arranged on natural gas outlet conduit 3 and the day after tomorrow that throttles after level-one heating
Between right feed channel 4.
Further, 13 bottom of furnace body of the utility model is provided with furnace body 13 and the hanging bearing 7 in ground.
Claims (8)
1. a kind of flue gas waste heat recovery water jacket furnace, including sequentially connected smoke-fire-tube（11）, smoke box（10）And furnace body（13）；Furnace body
（13）On be connected with Imported gas pipeline（1）Natural gas outlet conduit after being heated with level-one（3）, it is characterised in that：Described one
Natural gas outlet conduit after level heating（3）On be provided with throttle valve（2）, the smoke box（10）On be connected with bypass pyrotechnics pipeline
（9）, the bypass pyrotechnics pipeline（9）On be connected with heat exchanger（5）；Natural gas outlet conduit after the level-one heating（3）Pass through
Natural gas line after throttling（4）Connect heat exchanger（5）Access furnace body again afterwards（13）；The furnace body（13）On be provided with two level heating
Natural gas outlet conduit afterwards（6）.
2. flue gas waste heat recovery water jacket furnace according to claim 1, it is characterised in that：Throttle valve（2）Level-one is arranged on to add
Natural gas outlet conduit after heat（3）With natural gas line after throttling（4）Between.
3. flue gas waste heat recovery water jacket furnace according to claim 1 or 2, it is characterised in that：Furnace body（13）Bottom is provided with
Sewage draining exit（8）.
4. flue gas waste heat recovery water jacket furnace according to claim 1 or 2, it is characterised in that：Furnace body（13）Top is connected with
Expansion tank（12）.
5. flue gas waste heat recovery water jacket furnace according to claim 1 or 2, it is characterised in that：The heat exchanger（5）To raise the nose above water to breathe
Formula heat exchanger, fixed tube-sheet exchanger, U-tube sheet heat exchanger or plate heat exchanger.
6. flue gas waste heat recovery water jacket furnace according to claim 1, it is characterised in that：The furnace body (13）Bottom is provided with
By furnace body（13）The hanging bearing with ground（7）.
7. flue gas waste heat recovery water jacket furnace according to claim 6, it is characterised in that：The bearing（7）Height be 2-
4m。
8. flue gas waste heat recovery water jacket furnace according to claim 1, it is characterised in that：The bypass pyrotechnics pipeline（9）From
Smoke box（10）And furnace body（13）Junction draw, and bypass pyrotechnics pipeline（9）A diameter of 20-30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721066715.2U CN207262700U (en) | 2017-08-24 | 2017-08-24 | A kind of flue gas waste heat recovery water jacket furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721066715.2U CN207262700U (en) | 2017-08-24 | 2017-08-24 | A kind of flue gas waste heat recovery water jacket furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207262700U true CN207262700U (en) | 2018-04-20 |
Family
ID=61922305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721066715.2U Active CN207262700U (en) | 2017-08-24 | 2017-08-24 | A kind of flue gas waste heat recovery water jacket furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207262700U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425094A (en) * | 2017-08-24 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of flue gas waste heat recovery water jacket furnace |
| CN111765771A (en) * | 2019-04-01 | 2020-10-13 | 山东邦巨实业有限公司 | Energy-conserving natural gas heating furnace of circulation heat treatment |
-
2017
- 2017-08-24 CN CN201721066715.2U patent/CN207262700U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425094A (en) * | 2017-08-24 | 2019-03-05 | 中国石油化工股份有限公司 | A kind of flue gas waste heat recovery water jacket furnace |
| CN111765771A (en) * | 2019-04-01 | 2020-10-13 | 山东邦巨实业有限公司 | Energy-conserving natural gas heating furnace of circulation heat treatment |
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