CN212746545U - Novel gas steam boiler flue gas waste heat recovery and recycle system - Google Patents
Novel gas steam boiler flue gas waste heat recovery and recycle system Download PDFInfo
- Publication number
- CN212746545U CN212746545U CN202021250727.2U CN202021250727U CN212746545U CN 212746545 U CN212746545 U CN 212746545U CN 202021250727 U CN202021250727 U CN 202021250727U CN 212746545 U CN212746545 U CN 212746545U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- gas
- steam boiler
- waste heat
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 99
- 239000003546 flue gas Substances 0.000 title claims abstract description 99
- 239000007789 gas Substances 0.000 title claims abstract description 45
- 239000002918 waste heat Substances 0.000 title claims abstract description 31
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000002485 combustion reaction Methods 0.000 claims abstract description 33
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 17
- 230000023556 desulfurization Effects 0.000 claims abstract description 17
- 239000000446 fuel Substances 0.000 claims abstract description 15
- 238000004064 recycling Methods 0.000 claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
The application discloses novel gas steam boiler flue gas waste heat recovery and system of recycling compares with prior art, includes: a gas-fired steam boiler; the first flue gas heat exchanger is connected with the gas outlet end of the gas-fired steam boiler and is provided with a cold fuel filling port; the combustion chamber is connected with the first flue gas heat exchanger through a first pipeline; the water tank is arranged above the combustion chamber; the second flue gas heat exchanger is connected with the first flue gas heat exchanger through a second pipeline; the induced draft fan is connected with the air outlet of the second flue gas heat exchanger; the flue gas desulfurization device is connected with the induced draft fan; and the gas compressor is connected with the flue gas desulfurization device and is connected with the combustion chamber through an air outlet. The application provides a novel gas steam boiler flue gas waste heat recovery and system of recycling compares in prior art, can cross effectively improving the boiler practical process to flue gas waste heat's recycle efficiency, can effectively handle the sulfur dioxide in the flue gas again.
Description
Technical Field
The application relates to the technical field of boiler flue gas treatment and utilization, more specifically say, especially relate to a novel gas steam boiler flue gas waste heat recovery and recycle system.
Background
The gas-fired steam boiler is a steam boiler heated by gas combustion, and is a heat energy conversion device which heats water in a boiler by using heat released by fuel combustion in the boiler and vaporizes the water into steam. In the practical use of a gas steam boiler, the temperature of the flue gas can reach more than 100 ℃, which means that a large amount of heat is not fully utilized. The utilization efficiency of the existing boiler flue gas waste heat recovery and treatment equipment in the process of recycling the flue gas waste heat needs to be improved, and the treatment of sulfur dioxide in the flue gas also needs to be enhanced.
Therefore, how to provide a novel gas steam boiler flue gas waste heat recovery and recycle system can effectively improve the recovery efficiency of flue gas waste heat in the practical process of the boiler, and can effectively treat sulfur dioxide in the flue gas, and the technical problem that the technical personnel in the field need to solve urgently is already formed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the application provides a novel gas steam boiler flue gas waste heat recovery and recycle system, which can effectively improve the recovery efficiency of the boiler to the flue gas waste heat and can effectively treat sulfur dioxide in the flue gas.
The technical scheme provided by the application is as follows:
the application provides a novel gas steam boiler flue gas waste heat recovery and system of recycling, include: a gas-fired steam boiler; the first flue gas heat exchanger is connected with the gas outlet end of the gas-fired steam boiler and is provided with a cold fuel filling port; the combustion chamber is connected with the first flue gas heat exchanger through a first pipeline; the water tank is arranged above the combustion chamber; the second flue gas heat exchanger is connected with the first flue gas heat exchanger through a second pipeline; the induced draft fan is connected with the air outlet of the second flue gas heat exchanger; the flue gas desulfurization device is connected with the induced draft fan; and the gas compressor is connected with the flue gas desulfurization device and is connected with the combustion chamber through an air outlet.
Further, in a preferred mode of the present invention, the combustion chamber is connected to the first flue gas heat exchanger through an exhaust duct.
Further, in a preferred embodiment of the present invention, the water tank is connected to the water-replenishing end of the gas steam boiler through a water-feeding pipe.
Further, in a preferred mode of the present invention, the first pipe, the second pipe, the exhaust pipe and the water supply pipe are provided with control valves.
Further, in a preferred mode of the present invention, the first pipe, the second pipe, the exhaust pipe and the pipe body of the water feeding pipe are both covered with a heat insulating layer.
Further, in a preferred mode of the present invention, the side surface of the wall of the water tank is provided with a transparent baffle.
Further, in a preferred embodiment of the present invention, the transparent baffle is carved with water level scale lines.
Further, in a preferred embodiment of the present invention, the inner side wall surface of the water tank is coated with a thermal insulation coating.
Further, in a preferred embodiment of the present invention, the compressor is connected to the flue gas desulfurization device through an air inlet.
Further, in a preferred embodiment of the present invention, the combustion chamber is connected to an external blower through an air supply outlet.
The utility model provides a novel gas steam boiler flue gas waste heat recovery and system of recycling compares with prior art, include: a gas-fired steam boiler; the first flue gas heat exchanger is connected with the gas outlet end of the gas-fired steam boiler and is provided with a cold fuel filling port; the combustion chamber is connected with the first flue gas heat exchanger through a first pipeline; the water tank is arranged above the combustion chamber; the second flue gas heat exchanger is connected with the first flue gas heat exchanger through a second pipeline; the induced draft fan is connected with the air outlet of the second flue gas heat exchanger; the flue gas desulfurization device is connected with the induced draft fan; and the gas compressor is connected with the flue gas desulfurization device and is connected with the combustion chamber through an air outlet. The utility model provides a novel gas steam boiler flue gas waste heat recovery and system of recycling compares in prior art, waste heat in the flue gas that the boiler discharged is through first gas heater, second gas heater, the fuel room, the water tank carries out abundant heat exchange's recycle back, sulfur dioxide in the flue gas is effectively handled through the flue gas desulphurization unit who is connected with the second heat exchanger again, thereby reach and effectively improve the boiler utility in-process to the recycle efficiency of flue gas waste heat, can effectively handle the sulfur dioxide's in the flue gas effect again.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic overall flow chart provided by an embodiment of the present invention;
fig. 2 is a schematic view of a water tank provided by an embodiment of the present invention;
FIG. 3 is a schematic view of a gas-steam boiler according to an embodiment of the present invention;
the reference numerals are explained below:
1. a gas-fired steam boiler; 2. a first flue gas heat exchanger; 3. a combustion chamber; 4. a water tank; 5. a second flue gas heat exchanger; 6. an induced draft fan; 7. a flue gas desulfurization unit; 8. a compressor is provided.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of a plurality of or a plurality of is two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the practical limit conditions of the present application, so that the modifications of the structures, the changes of the ratio relationships, or the adjustment of the sizes, do not have the technical essence, and the modifications, the changes of the ratio relationships, or the adjustment of the sizes, are all within the scope of the technical contents disclosed in the present application without affecting the efficacy and the achievable purpose of the present application.
As shown in fig. 1 to fig. 3, the system for recovering and recycling the waste heat of the flue gas of the novel gas steam boiler provided in the embodiment of the present application includes: a gas steam boiler 1; the first flue gas heat exchanger 2 is connected with the gas outlet end of the gas-fired steam boiler 1, and a cold fuel filling port is formed in the first flue gas heat exchanger 2; the combustion chamber 3 is connected with the first flue gas heat exchanger 2 through a first pipeline; a water tank 4 arranged above the combustion chamber 3; the second flue gas heat exchanger 5 is connected with the first flue gas heat exchanger 2 through a second pipeline; the induced draft fan 6 is connected with the air outlet of the second flue gas heat exchanger 5; the flue gas desulfurization device 7 is connected with the induced draft fan 6; and the gas compressor 8 is connected with the flue gas desulfurization device 7, and the gas compressor 8 is connected with the combustion chamber 3 through an air outlet.
Specifically, in the embodiment of the present invention, the water tank 4 is disposed directly above the combustion chamber 3.
Specifically, in the embodiment of the present invention, the combustion chamber 3 is connected to the first flue gas heat exchanger 2 through an exhaust duct.
Specifically, in the embodiment of the present invention, the first flue gas heat exchanger 2 is provided with a cold fuel filling port.
Specifically, in the embodiment of the present invention, the water tank 4 is connected to the water replenishing end of the gas steam boiler 1 through a water supply pipeline.
Specifically, in the embodiment of the present invention, the first pipeline, the second pipeline, the exhaust pipeline and the water feeding pipeline are all provided with a control valve.
Specifically, in the embodiment of the utility model provides an in, first pipeline the second pipeline exhaust pipeline and the pipeline body of water feeding all covers there is the heat preservation. The arrangement can reduce the heat loss of the waste heat of the flue gas and the heated water in the water tank in the flowing and conveying process.
Specifically, in the embodiment of the present invention, the side surface of the wall of the water tank 4 is provided with a transparent baffle.
Specifically, in the embodiment of the present invention, the transparent baffle is carved with water level scale lines. So set up, the water yield in the operating personnel of being convenient for in time observes the water tank.
Specifically, in the embodiment of the present invention, the inner side wall surface of the water tank 4 is coated with a thermal insulation coating. By the arrangement, heat loss can be reduced.
Specifically, in the embodiment of the utility model provides an in, compressor 8 through the air intake with flue gas desulfurization device 7 is connected, sets up like this, carries out desulfurization treatment to the flue gas, is favorable to environmental protection.
Specifically, in the embodiment of the present invention, the combustion chamber 3 is connected to an external blower through an air supply outlet. So configured, the efficiency of fuel combustion is improved by increasing oxygen.
The utility model provides a novel gas steam boiler flue gas waste heat recovery and recycle system, concrete operation flow is as follows:
flue gas discharged by the gas steam boiler 1 enters the first flue gas heat exchanger 2 to exchange heat with cold fuel in the first flue gas heat exchanger 2, the cold fuel absorbs heat in the flue gas to become hot fuel and enters the combustion chamber 3 through the first pipeline, the combustion chamber 3 heats water in the water tank 4 by using the hot fuel, the heated water flows to the water supplementing end of the gas steam boiler 1 through the water feeding pipeline, and the flue gas generated by fuel combustion in the combustion chamber enters the first flue gas heat exchanger 2 through the exhaust pipeline to recover waste heat of the flue gas again. The flue gas passing through the first flue gas heat exchanger 2 enters the second flue gas heat exchanger 5 through a second pipeline, enters the flue gas desulfurization device 7 after passing through the draught fan 6, and the flue gas after desulfurization enters the combustion chamber 3 through the compression of the gas compressor 8, so that the combustion efficiency of fuel in the combustion chamber 3 is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a novel gas steam boiler flue gas waste heat recovery and recycle system which characterized in that includes:
a gas-steam boiler (1);
the first flue gas heat exchanger (2) is connected with the gas outlet end of the gas-fired steam boiler (1), and a cold fuel filling port is formed in the first flue gas heat exchanger (2);
the combustion chamber (3) is connected with the first flue gas heat exchanger (2) through a first pipeline;
a water tank (4) arranged above the combustion chamber (3);
the second flue gas heat exchanger (5) is connected with the first flue gas heat exchanger (2) through a second pipeline;
the induced draft fan (6) is connected with the air outlet of the second flue gas heat exchanger (5);
the flue gas desulfurization device (7) is connected with the induced draft fan (6);
and the gas compressor (8) is connected with the flue gas desulfurization device (7), and the gas compressor (8) is connected with the combustion chamber (3) through an air outlet.
2. A new gas steam boiler flue gas waste heat recovery and reuse system according to claim 1, characterized in that the combustion chamber (3) is connected with the first flue gas heat exchanger (2) through an exhaust duct.
3. The novel gas steam boiler flue gas waste heat recovery and reuse system according to claim 1, wherein the water tank (4) is connected with the water replenishing end of the gas steam boiler (1) through a water feeding pipe.
4. The novel gas steam boiler flue gas waste heat recovery and reuse system according to claim 3, wherein said first pipeline, said second pipeline, said exhaust duct and said water supply duct are all provided with control valves.
5. The system for recovering and recycling the waste heat of the flue gas of a gas steam boiler according to claim 4, wherein the first pipeline, the second pipeline, the exhaust pipeline and the pipe body of the water feeding pipeline are all covered with heat insulating layers.
6. The system for recovering and recycling the waste heat of the flue gas of a gas steam boiler according to the claim 1, characterized in that the side surface of the wall of the water tank (4) is provided with a transparent baffle.
7. The system for recovering and recycling the waste heat of the flue gas of a gas steam boiler according to claim 6, wherein the transparent baffle is marked with water level scale lines.
8. A novel gas steam boiler flue gas waste heat recovery and reuse system according to claim 1, characterized in that the inner side wall surface of the water tank (4) is coated with a thermal insulation coating.
9. A novel gas steam boiler flue gas waste heat recovery and reuse system according to claim 1, characterized in that the compressor (8) is connected with the flue gas desulfurization device (7) through an air inlet.
10. A new gas steam boiler flue gas waste heat recovery and reuse system according to claim 1, characterized in that, the combustion chamber (3) is connected with an external blower through a blast outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021250727.2U CN212746545U (en) | 2020-06-30 | 2020-06-30 | Novel gas steam boiler flue gas waste heat recovery and recycle system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021250727.2U CN212746545U (en) | 2020-06-30 | 2020-06-30 | Novel gas steam boiler flue gas waste heat recovery and recycle system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212746545U true CN212746545U (en) | 2021-03-19 |
Family
ID=75011953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021250727.2U Expired - Fee Related CN212746545U (en) | 2020-06-30 | 2020-06-30 | Novel gas steam boiler flue gas waste heat recovery and recycle system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212746545U (en) |
-
2020
- 2020-06-30 CN CN202021250727.2U patent/CN212746545U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201662226U (en) | Condensing gas heating water heater | |
| CN206989172U (en) | The denitration of boiler full load couples fume afterheat gradient utilization system | |
| CN205909502U (en) | Boiler of make full use of flue gas waste heat | |
| CN208312424U (en) | Condensed water is used for the heat recovery system of low nitrogen burning | |
| CN207907269U (en) | A kind of gas cooler and steam air heater association system | |
| CN206160466U (en) | Energy -saving pot stove that tail gas waste heat recovery recycled | |
| CN212746545U (en) | Novel gas steam boiler flue gas waste heat recovery and recycle system | |
| CN210119010U (en) | Ultralow nitrogen stainless steel full-condensing boiler | |
| CN205480930U (en) | Utilize preheating of air system of thermal de aeration feedwater | |
| CN207865428U (en) | A kind of biomass boiler fume afterheat utilizes energy saver | |
| CN206959348U (en) | Gas fired-boiler smoke condensing waste heat recovering device | |
| CN217402528U (en) | A deaerator waste heat recovery device | |
| CN201866750U (en) | Condensation-type one-pass fire tube boiler | |
| CN206191560U (en) | Energy -saving environment -protecting steam boiler | |
| CN216113990U (en) | Industrial boiler water circulating device | |
| CN205537195U (en) | Straight touch heat exchange device | |
| CN209726502U (en) | A kind of high efficient heat exchanging formula natural gas heating boiler | |
| CN209399470U (en) | A kind of New Regenerative heating system | |
| CN2807003Y (en) | Boiler waste heat utilizing device | |
| CN108800099B (en) | A kind of boiler feed water energy-saving preheating device and method | |
| CN207335489U (en) | A kind of preheating type hot-water boiler | |
| CN210602244U (en) | Energy-saving heat supply boiler system | |
| CN205640872U (en) | Utilize boiler economizer of hydrophobic heating cold wind | |
| CN206338785U (en) | A kind of integral condensation steam boiler of air-cooled | |
| CN215723310U (en) | Waste heat recovery device for fully utilizing boiler flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210319 |