CN219993778U - Waste heat recovery system for gas generator set - Google Patents
Waste heat recovery system for gas generator set Download PDFInfo
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- CN219993778U CN219993778U CN202320246799.7U CN202320246799U CN219993778U CN 219993778 U CN219993778 U CN 219993778U CN 202320246799 U CN202320246799 U CN 202320246799U CN 219993778 U CN219993778 U CN 219993778U
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- waste heat
- water
- pipeline
- flue gas
- water inlet
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- 239000002918 waste heat Substances 0.000 title claims abstract description 90
- 239000007789 gas Substances 0.000 title claims abstract description 45
- 238000011084 recovery Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 239000000779 smoke Substances 0.000 claims abstract description 43
- 238000001816 cooling Methods 0.000 claims abstract description 12
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 29
- 239000003546 flue gas Substances 0.000 claims description 29
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 5
- 239000003517 fume Substances 0.000 description 5
- 238000004880 explosion Methods 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 biogas Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to the technical field of gas generating sets, and particularly discloses a waste heat recovery system for a gas generating set. According to the utility model, the cylinder sleeve water waste heat is recycled through the cylinder sleeve water waste heat exchanger arranged on the cylinder sleeve water circulating cooling pipeline, and the waste heat of the smoke is recycled through the smoke waste heat recoverer arranged on the smoke discharge pipeline, so that the waste heat generated by the operation of the gas generator set is fully utilized, and the generating efficiency of the set and the utilization rate of gas energy are improved.
Description
Technical Field
The utility model relates to the technical field of gas generator sets, in particular to a waste heat recovery system for a gas generator set.
Background
The gas generator set is widely applied to various fields such as steel, coking, biogas and the like due to the advantages of high starting and running reliability, good power generation quality, low-frequency noise, clean and low-cost energy sources and the like.
However, when the generator set operates at rated power, fuel energy is only about 35% converted into electric energy, other about 32% is discharged along with flue gas, 25% is taken away by engine cylinder liner water, other about 8% is emitted by a machine body, and the like, wherein the measured flue gas emission temperature of part of the generator set is up to 550 ℃, so that waste of flue gas waste heat resources is caused, pollution to the environment can be caused by too high temperature flue gas emission, the structure and the function of the traditional cylinder liner water circulation system are single, the waste heat recovery rate of the cylinder liner water is insufficient, the return water temperature of the cylinder liner water can be up to 75-85 ℃, and the waste of the flue gas and the cylinder liner water waste heat is serious, so that the efficiency of the traditional gas generator set is lower, and the loss of energy and resources is large.
Therefore, there is a need for an improvement in waste heat recovery systems for gas generator sets that overcomes the shortcomings of the prior art.
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a waste heat recovery system for a gas generator set, which is used for fully recycling waste heat of smoke and cylinder liner water and improving the efficiency and the energy utilization rate of the gas generator set.
The technical scheme of the utility model is as follows:
the utility model provides a to gas generating set waste heat recovery system, including the gas generating set body, be provided with cylinder liner water circulation cooling pipeline and fume emission pipeline on the gas generating set body, be provided with heat transfer unit on the cylinder liner water circulation cooling pipeline, be provided with cylinder liner water waste heat recoverer between gas generating set body and the heat transfer unit, be provided with fume emission pipeline on the fume emission pipeline, be provided with on the cylinder liner water waste heat recoverer and retrieve the water inlet pipeline, be provided with on the fume waste heat recoverer and retrieve the water outlet pipeline, be provided with between cylinder liner water waste heat recoverer and the fume waste heat recoverer and retrieve circulation pipeline.
By adopting the structure, water is supplied to the cylinder liner water waste heat recoverer connected in series on the cylinder liner water circulation cooling pipeline through the recovery water inlet pipeline, heat exchange is carried out with the cylinder liner water waste heat, recycling of the cylinder liner water waste heat is achieved, water after heat exchange with the cylinder liner water enters the smoke waste heat recoverer through the recovery circulation pipeline, waste heat of smoke is further absorbed, and the water is applied to deaerator water supply or heat supply of a series heat pump system or direct steam generation and the like through the recovery water outlet pipeline, so that full utilization of the cylinder liner water waste heat and the smoke waste heat is achieved, and the power generation efficiency of a generator set and the energy utilization rate of fuel gas are improved.
Preferably, the waste heat recovery system for the gas generating set further comprises a water inlet main pipe and a water return main pipe, the water inlet pipe is communicated with the water inlet main pipe, the water return pipe is communicated with the water return main pipe, the parallel connection of the waste heat recovery systems of the gas generating set can be realized through the water inlet main pipe and the water return main pipe, the water recovery inlet pipes of the systems are all communicated with the water inlet main pipe, waste heat recovery water is uniformly provided for the systems through the water inlet main pipe, the water recovery outlet pipes of the systems are all communicated with the water return main pipe, and the water is uniformly collected by the water return main pipe and then guided to the heat utilization unit.
Preferably, the inlet end of the water inlet main pipe is provided with a booster water pump, the water inlet main pipe and the water return main pipe are respectively provided with a control valve and a control instrument, the booster water pump is utilized to provide pressurized water for the water inlet main pipe, and the control valves and the control instruments on the pipeline can realize automatic control and realize PID regulation of a single branch.
Preferably, the explosion-proof door and the spare smoke exhaust pipeline are arranged on the smoke exhaust pipeline, the explosion-proof door is arranged at the front end of the smoke waste heat recoverer, the spare smoke exhaust pipeline is connected with the smoke waste heat recoverer in parallel through the three-way reversing valve, the muffler is arranged on the spare smoke exhaust pipeline, the safety of the smoke exhaust pipeline is improved by using the explosion-proof door, when the smoke waste heat recoverer maintains or fails, the normal operation of the system is ensured by the smoke exhaust pipeline, and the muffler reduces the noise during smoke exhaust.
Preferably, the flue gas waste heat recoverer comprises a shell, a fin tube group, a water inlet main pipe and a water return main pipe, wherein the fin tube group is arranged inside the shell, the water inlet main pipe and the water return main pipe are arranged outside the shell and are communicated with the fin tube group, the fin tube group is adopted to increase the heat exchange area, the heat transfer effect is good, the overall strength is high, and the use cost is low.
Preferably, the shell, the fin tube group, the water inlet main pipe and the water return main pipe are all made of corrosion-resistant materials, such as stainless steel, preferably 316L stainless steel, and the heat-resistant water heater has good corrosion resistance, atmospheric corrosion resistance and high-temperature strength and can be used under severe conditions.
Preferably, the cylinder sleeve water waste heat recoverer adopts a plate heat exchanger, and the heat exchange unit adopts a shell-and-tube heat exchanger or a plate heat exchanger, so that the heat exchange efficiency is high, the heat loss is small, the structure is compact, and the service life is long.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the cylinder liner water waste heat is recycled through the cylinder liner water waste heat exchanger arranged on the cylinder liner water circulating cooling pipeline, and the waste heat of the smoke is recycled through the smoke waste heat recoverer arranged on the smoke discharge pipeline, so that the waste heat generated by the operation of the gas generator set is fully utilized, the generating efficiency of the set and the utilization rate of gas energy are improved, the effects of energy conservation and emission reduction are achieved, and benefits and commercial values are created for enterprises.
Drawings
FIG. 1 is a schematic diagram of the process of the present utility model;
FIG. 2 is a schematic diagram of a flue gas waste heat recoverer structure of the present utility model;
FIG. 3 is a front view of a layout plan view of a second embodiment of the present utility model;
fig. 4 is a top layout plan view of a second embodiment of the present utility model.
1, a gas generator set body; 2. a cylinder sleeve water circulation cooling pipeline; 3. a flue gas discharge pipeline; 4. a heat exchange unit; 5. a cylinder sleeve water waste heat recoverer; 6. recovering the water inlet pipeline; 7. a recovery water outlet pipeline; 8. a recycling pipeline; 9. a flue gas waste heat recoverer; 10. a water inlet main pipe; 11. a backwater main pipe; 12. a muffler; 13. an explosion door; 14. a three-way reversing valve; 15. a booster water pump; 16. a housing; 17. a fin tube group; 18. a water inlet main pipe; 19. a water return main pipe; 20. a control valve; 21. a control instrument; 22. and a spare smoke exhaust pipeline.
Detailed Description
In order to make the technical means, technical features, objects and technical effects of the present utility model easy to understand, the present utility model will be further described with reference to the specific drawings.
Example 1
Referring to fig. 1 and 2, a waste heat recovery system for a gas generator set comprises a gas generator set body 1, wherein a cylinder liner water circulating cooling pipeline 2 and a flue gas discharge pipeline 3 are connected to the gas generator set body 1, a cylinder liner water waste heat recoverer 5 and a heat exchange unit 4 are sequentially connected in series to the cylinder liner water circulating cooling pipeline 2, the cylinder liner water waste heat recoverer 5 is installed between the gas generator set body 1 and the heat exchange unit 4, a recovery water inlet pipeline 6 is connected to the cylinder liner water waste heat recoverer 5 and is used for providing heat exchange water for the cylinder liner water waste heat recoverer 5, the cylinder liner water firstly exchanges heat with water flowing through the cylinder liner water waste heat backwater, then enters a heat exchanger to perform cooling treatment again, the cooling effect is guaranteed, a flue gas waste heat recoverer 9 is installed on the flue gas discharge pipeline 3 and used for recovering flue gas waste heat, a recovery water outlet pipeline 7 is connected to the flue gas waste heat recoverer 9, a recovery circulating pipeline 8 is connected between the cylinder liner water waste heat recoverer 5 and the flue gas waste heat recoverer 9, water after being heated up by heat exchange with the water enters the recovery circulating pipeline 8 and flows out of the flue gas waste heat recoverer 9 to perform secondary heat exchange with the flue gas waste heat, and the flue gas waste heat is heated by the water after the water is subjected to secondary heat recovery and is discharged by the water recovery pipeline 7.
Referring to fig. 1, the cylinder liner water waste heat recoverer 5 adopts a plate heat exchanger, the plate heat exchanger has high heat exchanging effect, small heat loss, compact structure and long service life, the heat exchanging unit 4 generally adopts a shell-and-tube heat exchanger or a plate heat exchanger, the efficiency and the energy saving are realized, the application range is wide, and the plate heat exchanger and the shell-and-tube heat exchanger are of mature structures, and the specific structures thereof are not repeated here.
Referring to fig. 2, the flue gas waste heat recoverer 9 includes a housing 16, a fin tube group 17, a water inlet manifold 18 and a water return manifold 19, the fin tube group 17 is connected in the housing 16 by adopting a welding mode, the water inlet manifold 18 and the water return manifold 19 are all installed outside the housing 16 and are all communicated with the fin tube group 17, in order to ensure that heat exchange is fully performed, the water inlet manifold 18 and the water return manifold 19 are respectively installed at two sides of the housing 16, specifically, the water inlet manifold 18 is installed at the lower part of one side of the housing 16, the water return manifold 19 is installed at the upper part of the opposite side, and the housing 16, the fin tube group 17, the water inlet manifold 18 and the water return manifold 19 are all made of 316L stainless steel materials, so that the flue gas waste heat recoverer is good in corrosion resistance, atmospheric corrosion resistance and high temperature strength, can be used under severe conditions, and heat exchange area is increased by adopting the fin tube group 17, and has high overall strength and low use cost.
Referring to fig. 1, an explosion vent 13 and a standby smoke exhaust pipeline 22 are installed on a smoke exhaust pipeline 3, the explosion vent 13 is connected to the front end of a smoke waste heat recovery device 9 and used for improving the use safety of the smoke exhaust pipeline 3, the standby smoke exhaust pipeline 22 is connected with the smoke waste heat recovery device 9 in parallel through a three-way reversing valve 14, a muffler 12 is arranged on the standby smoke exhaust pipeline 22, when the smoke waste heat recovery device 9 is maintained or fails, smoke can be exhausted through the standby smoke exhaust pipeline 22 by switching the three-way reversing valve 14, the normal operation of the system is ensured, and the muffler 12 is used for reducing noise during smoke exhaust.
Example two
Referring to fig. 1, 3 and 4, a waste heat recovery system for a gas generator set further includes a water inlet main pipe 10 and a water return main pipe 11, parallel connection of a plurality of waste heat recovery systems for a gas generator set can be achieved through the water inlet main pipe 10 and the water return main pipe 11, water inlet pipes of the systems connected in parallel are all communicated with the water inlet main pipe 10, waste heat recovery water is uniformly provided for the systems through the water inlet main pipe 10, water return pipes of the systems are all communicated with the water return main pipe 11, the water return pipes are uniformly collected by the water return main pipe 11 and then led to a heat utilization unit (a deaerator supplies water or supplies heat or directly generates steam or the like) for supplying heat to the water inlet main pipe 10, a booster pump 15 is connected to the water inlet main pipe 10, a control valve 20 and a control instrument 21 can be installed on the water inlet main pipe 10, the water return pipe 11 and each branch pipe according to actual production needs, automatic control and single-branch PID regulation can be achieved through the control valve 20 and the control instrument 21 installed on the pipelines.
When the gas engine body works, the booster pump is connected with an external water source, water is supplied to each waste heat recovery system through the water inlet main pipe 10, the water enters the cylinder liner water waste heat recoverer 5 through the recovery water inlet pipe 6, primary heat exchange is carried out on the water and the cylinder liner water of the gas engine body, about 16% of heat of the cylinder liner water is absorbed, the rest about 9% of heat of the cylinder liner water is absorbed by the heat exchange unit 4, the warmed water flows into the smoke waste heat recoverer 9 through the recovery circulating pipe 8, secondary heat exchange is carried out on smoke discharged by the smoke waste heat recoverer 9, about 32% of heat of the smoke is absorbed, the temperature of discharged smoke can be reduced to 120 ℃ from 550 ℃, the water subjected to the secondary heat exchange is collected into the backwater main pipe 11 through the recovery water outlet pipe, the backwater main pipe 11 is guided to the heat utilization unit, the waste heat of the cylinder liner water and the smoke is fully recovered through the cylinder liner water waste heat recoverer 5 and the smoke waste heat recoverer 9, the smoke discharging temperature is reduced, and the power generation efficiency and the energy utilization rate of the gas generator are improved.
The gas generator set comprises a gas generator set using combustible gases such as natural gas, biogas, gas, coke oven gas and the like as fuel.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the present utility model. Equivalent changes and modifications of the utility model are intended to fall within the scope of the present utility model.
Claims (6)
1. The utility model provides a to gas generating set waste heat recovery system, includes gas generating set body (1), be provided with cylinder liner hydrologic cycle cooling line (2) and flue gas emission pipeline (3) on gas generating set body (1), be provided with heat transfer unit (4), its characterized in that on cylinder liner hydrologic cycle cooling line (2): a cylinder liner water waste heat recoverer (5) is arranged between the gas generating set body (1) and the heat exchange unit (4), a flue gas waste heat recoverer (9) is arranged on the flue gas discharge pipeline (3), a recovery water inlet pipeline (6) is arranged on the cylinder liner water waste heat recoverer (5), a recovery water outlet pipeline (7) is arranged on the flue gas waste heat recoverer (9), and a recovery circulating pipeline (8) is arranged between the cylinder liner water waste heat recoverer (5) and the flue gas waste heat recoverer (9);
the flue gas waste heat recoverer (9) comprises a shell (16), a fin tube group (17), a water inlet header pipe (18) and a water return header pipe (19), wherein the fin tube group (17) is arranged inside the shell (16), and the water inlet header pipe (18) and the water return header pipe (19) are arranged outside the shell (16) and are communicated with the fin tube group (17).
2. The waste heat recovery system for a gas generator set of claim 1, wherein: the water inlet pipe is communicated with the water inlet main pipe (10) and the water return main pipe (11), and the water return pipeline is communicated with the water return main pipe (11).
3. The waste heat recovery system for a gas generator set of claim 2, wherein: the inlet end of the water inlet main pipe (10) is provided with a booster pump (15), and the water inlet main pipe (10) and the water return main pipe (11) are respectively provided with a control valve (20) and a control instrument (21).
4. The waste heat recovery system for a gas generator set of claim 1, wherein: the flue gas exhaust pipeline (3) is provided with an explosion-proof door (13) and a standby smoke exhaust pipeline (22), the explosion-proof door (13) is arranged at the front end of the flue gas waste heat recovery device (9), the standby smoke exhaust pipeline (22) is connected with the flue gas waste heat recovery device (9) in parallel through a three-way reversing valve (14), and the standby smoke exhaust pipeline (22) is provided with a muffler (12).
5. The waste heat recovery system for a gas generator set of claim 1, wherein: the shell (16), the fin tube groups (17), the water inlet header pipe (18) and the water return header pipe (19) are all made of corrosion-resistant materials.
6. The waste heat recovery system for a gas generator set of claim 1, wherein: the cylinder sleeve water waste heat recoverer (5) adopts a plate heat exchanger, and the heat exchange unit (4) adopts a shell-and-tube heat exchanger or a plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320246799.7U CN219993778U (en) | 2023-02-18 | 2023-02-18 | Waste heat recovery system for gas generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320246799.7U CN219993778U (en) | 2023-02-18 | 2023-02-18 | Waste heat recovery system for gas generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219993778U true CN219993778U (en) | 2023-11-10 |
Family
ID=88618905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320246799.7U Active CN219993778U (en) | 2023-02-18 | 2023-02-18 | Waste heat recovery system for gas generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219993778U (en) |
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2023
- 2023-02-18 CN CN202320246799.7U patent/CN219993778U/en active Active
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