CN220365659U - Energy-saving heating system for gas treatment - Google Patents
Energy-saving heating system for gas treatment Download PDFInfo
- Publication number
- CN220365659U CN220365659U CN202321218652.3U CN202321218652U CN220365659U CN 220365659 U CN220365659 U CN 220365659U CN 202321218652 U CN202321218652 U CN 202321218652U CN 220365659 U CN220365659 U CN 220365659U
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- China
- Prior art keywords
- heat exchanger
- water
- fuel gas
- engine
- heating system
- 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.)
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000002737 fuel gas Substances 0.000 claims abstract description 43
- 239000012528 membrane Substances 0.000 claims abstract description 17
- 239000007789 gas Substances 0.000 claims description 38
- 238000005406 washing Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 8
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000498 cooling water Substances 0.000 abstract description 4
- 239000002918 waste heat Substances 0.000 abstract description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 3
- 239000001569 carbon dioxide Substances 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 description 11
- 238000005261 decarburization Methods 0.000 description 7
- 238000005262 decarbonization Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- PVXVWWANJIWJOO-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-N-ethylpropan-2-amine Chemical compound CCNC(C)CC1=CC=C2OCOC2=C1 PVXVWWANJIWJOO-UHFFFAOYSA-N 0.000 description 1
- QMMZSJPSPRTHGB-UHFFFAOYSA-N MDEA Natural products CC(C)CCCCC=CCC=CC(O)=O QMMZSJPSPRTHGB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- GNVRJGIVDSQCOP-UHFFFAOYSA-N n-ethyl-n-methylethanamine Chemical compound CCN(C)CC GNVRJGIVDSQCOP-UHFFFAOYSA-N 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to the technical field of waste heat recycling, and particularly discloses a fuel gas treatment energy-saving heating system which comprises an engine, a heat exchanger and a cooler, wherein a fuel gas channel is arranged in the heat exchanger; the heat exchanger is provided with an air inlet and an air outlet, and the air outlet of the heat exchanger is connected with the air inlet of the membrane separator. The utility model realizes the heat exchange between the jacket water of the engine and the fuel gas flowing through the heat exchanger, effectively utilizes the waste heat of the cooling water system of the engine, improves the comprehensive utilization rate of energy, and solves the problems of engine corrosion, short service life and low heat value, which are caused by too high carbon dioxide in the fuel gas, and the engine cannot run.
Description
Technical Field
The utility model relates to the technical field of waste heat recycling, in particular to a fuel gas treatment energy-saving heating system.
Background
At present, an oil-gas field compressor unit is mainly driven by a gas engine, the quality of produced gas of some gas fields is poor, the content of carbon dioxide is high, the gas field compressor unit is weak acid, has serious corrosiveness on pipelines and engine internals, seriously damages the performance and service life of the engine, and has low heat value of gas components, so that the gas field compressor unit cannot be normally used. Liquid decarbonization methods, such as MDEA (N-methyldiethylamine) solvent decarbonization methods, are generally suitable for high throughput applications and are expensive. Most devices currently employ decarbonization methods based on membrane separation technology. Membrane separation typically requires gas temperatures in the range of 50-65 c, but the temperature of the fuel gas is typically well below this value, and therefore heating means need to be provided.
At present, the proportion of effective power converted by engine fuel is only 30% -40%, the heat dissipation ratio of engine cooling water is 20% -25%, and the heat dissipation ratio of tail gas is about 40%, namely, when the engine is running, only about 1/3 of energy is utilized, and the rest about 2/3 of energy is wasted, so that the energy utilization rate is low.
Accordingly, there is a need for an improvement that overcomes the shortcomings of the prior art.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, provides a fuel gas treatment energy-saving heating system, solves the problem of low preheating utilization rate of an engine cooling water system in the prior art, provides energy for a fuel gas film separation decarburization treatment device, and improves the energy utilization rate.
The technical scheme of the utility model is as follows:
the energy-saving heating system for gas treatment comprises an engine, a heat exchanger and a cooler, wherein a fuel gas channel is arranged in the heat exchanger, a jacket water flow channel is arranged in the engine, a water outlet of the jacket water flow channel is connected with a water inlet of the heat exchanger, a water inlet of the jacket water flow channel is connected with a water outlet of the cooler, and a water outlet of the heat exchanger is connected with a water inlet of the cooler;
the heat exchanger is provided with an air inlet and an air outlet, and the air outlet of the heat exchanger is connected with the air inlet of the membrane separator.
Through the technical scheme, the heat exchanger is arranged in the fuel gas film separation decarburization device, the engine is started to run, jacket water in the jacket water flow channel is heated along with the running of the engine, the jacket water enters the heat exchanger and exchanges heat with low-temperature fuel gas flowing in the heat exchanger, so that the heating of the fuel gas is realized, the decarburization efficiency of the fuel gas is improved, and the energy utilization rate of the engine is improved.
As a preferable technical scheme, the device further comprises an electric heater, wherein the electric heater is arranged on a connecting pipe between the heat exchanger and the membrane separation.
And when the jacket water of the engine is heated to a set temperature, the temperature of the jacket water is enough for heat exchange of the fuel gas, and the electric heater is turned off.
As an optimized technical scheme, a water cooler water inlet pipe is connected between the engine and the cooler, a heat exchanger water inlet pipe is connected to a water inlet of the heat exchanger, a heat exchanger water outlet pipe is connected to a water outlet of the heat exchanger, the heat exchanger water inlet pipe and the heat exchanger water outlet pipe are connected with the water cooler water inlet pipe, and a regulating valve is arranged on the water cooler water inlet pipe between the heat exchanger water inlet pipe and the heat exchanger water outlet pipe. The adjusting valve can adjust the water inflow in the heat exchanger inlet pipe according to the heat exchange requirement of the heat exchanger.
As a preferable technical scheme, the air inlet end of the membrane separator is provided with a temperature control valve, the temperature control valve is used for monitoring the air inlet temperature of the air inlet end of the membrane separator, when the air inlet temperature does not reach the set temperature, the temperature control valve sends out a command to the master controller, the master controller receives and sends out the command to the electric heater, the electric heater continuously heats the fuel gas flowing out of the heat exchanger, and the decarburization temperature of the fuel gas is ensured to be within the set range.
As a preferred technical scheme, the device further comprises a gas washing tank, wherein the gas washing tank is provided with a gas inlet and a gas outlet, the gas outlet of the gas washing tank is connected with the gas inlet of the heat exchanger, the gas inlet of the gas washing tank is connected with a gas source pipe of fuel gas, and the washing tank is used for filtering and purifying the fuel gas, so that the cleanliness of the fuel gas is ensured.
As a preferable technical scheme, the air outlet connecting pipe of the membrane separator is provided with an electromagnetic valve for controlling the air outlet of the decarbonized fuel gas.
As a preferable technical scheme, the gas treatment energy-saving heating system further comprises a singlechip automatic controller, wherein the singlechip automatic controller is connected with electric components in the gas treatment energy-saving heating system. The fuel gas treatment energy-saving heating system controls the automatic operation of the electric components through the singlechip automatic controller.
The beneficial effects of the utility model are as follows:
according to the fuel gas treatment energy-saving heating system, the engine, the heat exchanger and the cooler are arranged, and the jacket water flow channel is arranged in the engine, so that heat exchange between jacket water of the engine and fuel gas flowing through the heat exchanger is realized, waste heat of an engine cooling water system is effectively utilized, energy is provided for the heat exchanger in the fuel gas film separation decarburization device, the comprehensive utilization rate of energy is improved, and the problems of engine corrosion, short service life and low heat value, which are caused by too high carbon dioxide in the fuel gas, are solved.
Drawings
FIG. 1 is a schematic diagram of a first configuration of a fuel gas processing economizer heating system of the present utility model;
FIG. 2 is a schematic diagram of a second configuration of the fuel gas processing economizer heating system of the present utility model;
FIG. 3 is a schematic diagram showing the structure of a fuel gas film separation decarbonization device of the present utility model.
In the figure: 1. a cooler; 2. a heat exchanger; 3. a membrane separator; 4. a gas scrubbing tank; 5. an electromagnetic valve; 6. a fixing seat; 7. an engine; 8. a water outlet pipe of the heat exchanger; 9. a heat exchanger water inlet pipe; 10. a water outlet pipe of the water cooler; 11. a water cooler inlet pipe; 12. an air outlet pipe of the heat exchanger; 13. an air inlet pipe of the heat exchanger; 14. a regulating valve; 15. a base; 16. an electric heater.
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.
As shown in fig. 1 and 2, the structure of the gas treatment energy-saving heating system of the utility model is schematically shown, the gas treatment energy-saving heating system comprises an engine 7, a cooler 1, a base 15, a fuel gas film separation decarburization device and a fixing seat 6, wherein the engine 1 and the cooler 1 are both fixed on the base 15, a water cooler water inlet pipe 11 is connected between a water outlet of the engine 7 and a water inlet of the cooler 1, a water cooler water outlet pipe 10 is connected between a water inlet of the engine 7 and a water outlet of the cooler 1, a jacket water flow channel is arranged in the engine 7, jacket water flows through the jacket water flow channel for cooling the engine 7 body, and the jacket water of the engine 7 circularly flows between the engine 7 and the cooler 1 through the water cooler water inlet pipe 11 and the water cooler water outlet pipe 10 for cooling the jacket water in the engine 7.
The water cooler inlet pipe 11 is provided with a regulating valve 14 for regulating the flow in the water cooler inlet pipe 11. The heat exchanger 2 is arranged in the fuel gas film separation decarburization device, a water inlet and a water outlet of the heat exchanger 2 are respectively connected with a heat exchanger water inlet pipe 9 and a heat exchanger water outlet pipe 8, the heat exchanger water inlet pipe 9 is connected with a water cooler water inlet pipe 11 at the front end of the regulating valve 14, the heat exchanger water outlet pipe 8 is connected with a water cooler water inlet pipe 11 at the rear end of the regulating valve 14, the flow rate of water entering the heat exchanger 2 can be controlled through the regulating valve 14, and the temperature of the fuel gas after heat exchange can be conveniently controlled.
The gas washing tank 4, the heat exchanger 2, the electric heater 16 and the membrane separator 3 are sequentially connected with the electromagnetic valve 5 through pipelines to separate and denitrify the fuel gas.
As shown in fig. 3, which is a schematic diagram of the structure of the fuel gas film separation decarbonization device of the present utility model, a heat exchanger air inlet pipe 13 is connected between the air outlet of the gas washing tank 4 and the air inlet of the heat exchanger 2, a heat exchanger air outlet pipe 12 is connected between the air outlet of the heat exchanger 2 and the air inlet of the film separator 3, an electric heater 16 is installed on the heat exchanger air outlet pipe 12, the electric heater 16 is used for heating and heating the fuel gas entering the film separator 3 when the engine 7 is just started, the jacket water temperature is lower, and the efficiency of the fuel gas separation decarbonization is ensured. A temperature control valve is arranged at the air inlet of the membrane separator 3 and is used for monitoring the air inlet temperature of the membrane separator 3.
The utility model is also provided with a singlechip automatic controller, and electric components in the fuel gas treatment energy-saving heating system are all connected with the singlechip automatic controller and used for controlling the automatic operation of equipment.
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 (7)
1. The energy-saving heating system for gas treatment is characterized by comprising an engine (7), a heat exchanger (2) and a cooler (1), wherein a fuel gas channel is arranged in the heat exchanger (2), a jacket water flow channel is arranged in the engine (7), a water outlet of the jacket water flow channel is connected with a water inlet of the heat exchanger (2), a water inlet of the jacket water flow channel is connected with a water outlet of the cooler (1), and a water outlet of the heat exchanger (2) is connected with a water inlet of the cooler (1);
the heat exchanger is characterized by further comprising a membrane separator (3), wherein the heat exchanger (2) is provided with an air inlet and an air outlet, and the air outlet of the heat exchanger (2) is connected with the air inlet of the membrane separator (3).
2. The fuel gas treatment energy-saving heating system according to claim 1, further comprising an electric heater (16), wherein the electric heater (16) is provided on a connection pipe between the heat exchanger (2) and the membrane separator (3).
3. The fuel gas treatment energy-saving heating system according to claim 1, characterized in that a water cooler water inlet pipe (11) is connected between the engine (7) and the cooler (1), a heat exchanger water inlet pipe (9) is connected to a water inlet of the heat exchanger (2), a heat exchanger water outlet pipe (8) is connected to a water outlet of the heat exchanger (2), the heat exchanger water inlet pipe (9) and the heat exchanger water outlet pipe (8) are both connected with the water cooler water inlet pipe (11), and a regulating valve (14) is arranged on the water cooler water inlet pipe (11) between the heat exchanger water inlet pipe (9) and the heat exchanger water outlet pipe (8).
4. The fuel gas treatment energy-saving heating system according to claim 1, wherein the air inlet end of the membrane separator (3) is provided with a temperature control valve.
5. The energy-saving heating system for gas treatment according to claim 1, further comprising a gas washing tank (4), wherein the gas washing tank (4) is provided with a gas inlet and a gas outlet, and the gas outlet of the gas washing tank (4) is connected with the gas inlet of the heat exchanger (2).
6. The fuel gas treatment energy-saving heating system according to claim 1, wherein the gas outlet connecting pipe of the membrane separator (3) is provided with an electromagnetic valve (5).
7. The fuel gas treatment energy-saving heating system according to any one of claims 1-6, further comprising a single-chip microcomputer automatic controller, wherein the single-chip microcomputer automatic controller is connected with electrical components in the fuel gas treatment energy-saving heating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321218652.3U CN220365659U (en) | 2023-05-19 | 2023-05-19 | Energy-saving heating system for gas treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321218652.3U CN220365659U (en) | 2023-05-19 | 2023-05-19 | Energy-saving heating system for gas treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220365659U true CN220365659U (en) | 2024-01-19 |
Family
ID=89513614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321218652.3U Active CN220365659U (en) | 2023-05-19 | 2023-05-19 | Energy-saving heating system for gas treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220365659U (en) |
-
2023
- 2023-05-19 CN CN202321218652.3U patent/CN220365659U/en active Active
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