CN219640749U - Tail gas heat energy utilization device for refining high-pressure boiler - Google Patents
Tail gas heat energy utilization device for refining high-pressure boiler Download PDFInfo
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- CN219640749U CN219640749U CN202320975864.XU CN202320975864U CN219640749U CN 219640749 U CN219640749 U CN 219640749U CN 202320975864 U CN202320975864 U CN 202320975864U CN 219640749 U CN219640749 U CN 219640749U
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- heat exchanger
- connecting line
- valve
- connecting pipeline
- pressure boiler
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- 238000007670 refining Methods 0.000 title claims abstract description 11
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to the field of grain and oil deep processing, and discloses a refining high-pressure boiler tail gas heat energy utilization device which comprises a first heat exchanger and a second heat exchanger which are arranged in a flue of a high-pressure boiler, wherein a gas inlet of the first heat exchanger is connected with external air, and a gas outlet of the first heat exchanger is connected with a boiler hearth; the flue lateral wall sets up the spark detector, and the second heat exchanger is connected with the gas-evolving device, and the connecting line of second heat exchanger and gas-evolving device is first connecting line, and first connecting line sets up the second valve, and the second heat exchanger is connected with the shell and tube heat exchanger, and the connecting line of second heat exchanger and shell and tube heat exchanger is second connecting line, sets up the third valve on the second connecting line, sets up the third connecting line between first connecting line and the second connecting line, set up first valve on the third connecting line, set up the temperature-sensing ware on the second connecting line. The utility model solves the problem that the heat energy of the tail gas of the high-pressure boiler is not utilized.
Description
Technical Field
The utility model relates to the field of grain and oil deep processing, in particular to a tail gas heat energy utilization device of a refining high-pressure boiler.
Background
In recent years, the grain and oil industry also pays more attention to recycling of heat energy, so that the production cost is effectively reduced, and the reasonable use of heat energy is urgent.
The high-pressure boiler used in the grain and oil deep processing process has the exhaust temperature of the boiler reaching more than 260 ℃, and part of heat is directly discharged into the atmosphere and cannot be recycled, so that the recycling of the part of heat is very necessary.
The heat energy utilization of the tail gas of the high-pressure boiler has the following defects:
the heat energy of the tail gas of the high-pressure boiler is not utilized, so that the energy is wasted greatly, and the production cost of enterprises is increased.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a device for utilizing heat energy of tail gas of a refining high-pressure boiler.
The utility model adopts the following specific scheme: the heat energy utilization device comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger and the second heat exchanger are arranged in a flue of a high-pressure boiler, a gas inlet of the first heat exchanger is connected with external air, a gas outlet of the first heat exchanger is connected with a fan, and the fan is connected with a boiler hearth; the flue lateral wall sets up the spark detector, the second heat exchanger is connected with the gas-evolving device, the connecting line of second heat exchanger and gas-evolving device is first connecting line, set up the second valve on the first connecting line, the second heat exchanger is connected with the shell and tube heat exchanger, the connecting line of second heat exchanger and shell and tube heat exchanger is the second connecting line, set up the third valve on the second connecting line, set up the third connecting line between first connecting line and the second connecting line, set up first valve on the third connecting line, set up temperature-sensing ware on the second connecting line.
The first valve, the second valve and the third valve are all connected with the control system.
The spark detector and the temperature sensor are both connected with the control system.
And an oil pump is arranged on the first connecting pipeline.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a heat energy utilization device for refining tail gas of a high-pressure boiler, which comprises a first heat exchanger and a second heat exchanger, wherein the first heat exchanger and the second heat exchanger are arranged in a flue of the high-pressure boiler; the side wall of the flue is provided with a spark detector, the second heat exchanger is connected with the gas separator, the connecting pipeline of the second heat exchanger and the gas separator is a first connecting pipeline, the first connecting pipeline is provided with a second valve, the second heat exchanger is connected with the tube array heat exchanger, the connecting pipeline of the second heat exchanger and the tube array heat exchanger is a second connecting pipeline, the second connecting pipeline is provided with a third valve, a third connecting pipeline is arranged between the first connecting pipeline and the second connecting pipeline, the third connecting pipeline is provided with a first valve, and the second connecting pipeline is provided with a temperature sensor. According to the utility model, the first heat exchanger and the second heat exchanger are arranged in the flue of the high-pressure boiler, so that the high-temperature tail gas heat energy of the high-pressure boiler is fully utilized, the problems of large energy waste and enterprise production cost increase caused by the fact that the tail gas heat energy of the existing high-pressure boiler is not utilized are solved, and on the other hand, the device is less in investment, simple in device operation, convenient to install, good in continuous stability and capable of reducing fuel loss.
Drawings
FIG. 1 is a schematic diagram of a prior art high pressure boiler;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic diagram of a control system according to the present utility model.
Wherein, the reference numerals are respectively:
in the figure, 1, a high-pressure boiler, 2, a fan, 3, a first heat exchanger, 4, a gas separator, 5, a second heat exchanger, 6, a spark detector, 7, a second valve, 8, a third valve, 9, a first valve, 10, a third connecting pipeline, 11, a first connecting pipeline, 12, a second connecting pipeline, 13, a control system, 14, a tubular heat exchanger, 15, a flue, 16, a temperature sensor, 17 and an oil pump.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the present utility model is described below by means of specific embodiments shown in the accompanying drawings. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
The utility model provides a heat energy utilization device for refining high-pressure boiler tail gas, which comprises a first heat exchanger 3 and a second heat exchanger 5, wherein the first heat exchanger 3 and the second heat exchanger 5 are arranged in a flue 15 of a high-pressure boiler 1, a gas inlet of the first heat exchanger 3 is connected with external air, a gas outlet of the first heat exchanger 3 is connected with a fan 2, and the fan 2 is connected with a boiler hearth; the side wall of the flue 15 is provided with a spark detector 6, the second heat exchanger 5 is connected with the gas separator 4, a connecting pipeline of the second heat exchanger 5 and the gas separator 4 is a first connecting pipeline 11, a second valve 7 is arranged on the first connecting pipeline 11, the second heat exchanger 5 is connected with a tubular heat exchanger 14, a connecting pipeline of the second heat exchanger 5 and the tubular heat exchanger 14 is a second connecting pipeline 12, a third valve 8 is arranged on the second connecting pipeline 12, a third connecting pipeline 10 is arranged between the first connecting pipeline 11 and the second connecting pipeline 12, a first valve 9 is arranged on the third connecting pipeline 10, and a temperature sensor 16 is arranged on the second connecting pipeline 12.
The first valve 9, the second valve 7 and the third valve 8 are all connected with a control system 13. The spark detector and the temperature sensor 16 are both connected to the control system 13. The first connecting pipeline 11 is provided with an oil pump 17.
When the high-pressure boiler is started, air is sent into a hearth of the high-pressure boiler by a fan after heat exchange of the first heat exchanger. The spark detector is a safety protection device, when the spark detector detects spark, the first valve is opened, the second valve and the third valve are all closed, and the dehydrated oil flowing out of the gas separator directly enters the tubular heat exchanger 14 through the third connecting pipeline without passing through the second heat exchanger. When the spark detector runs without alarming, the oil temperature sensed by the temperature sensor is smaller than the set Temperature (TL), the first valve is closed, the second valve and the third valve are opened, and decolorized oil enters the tube array heat exchanger after passing through the second heat exchanger; the temperature of the oil sensed by the temperature sensor is greater than the set Temperature (TH), the first valve is opened, the second valve and the third valve are closed, and the decolorized oil does not pass through the second heat exchanger; TL < oil temperature (TT 1) < TH sensed by the temperature sensor, regulating the opening degree of the first valve and the second valve through PID, opening the third valve, and allowing part of the de-oiled oil to enter the tube array heat exchanger after passing through the second heat exchanger.
In the utility model, two groups of heat exchangers (a first heat exchanger and a second heat exchanger) are added at the exhaust gas discharge flue of the high-pressure boiler. The air is subjected to heat exchange through the first heat exchanger, the air and the tail gas are subjected to indirect heat exchange, and the air after heat exchange is sent into a high-pressure boiler furnace by a high-pressure boiler fan. According to the utility model, the first heat exchanger and the second heat exchanger are arranged in the flue of the high-pressure boiler, so that the high-temperature tail gas heat energy of the high-pressure boiler is utilized in a fully direct contact mode, the problems of large energy waste and enterprise production cost increase caused by the fact that the tail gas heat energy of the existing high-pressure boiler is not utilized are solved, and on the other hand, the device is less in investment, simple in device operation, convenient to install, good in continuous stability and capable of reducing fuel loss.
The foregoing drawings and description are only one embodiment of the present utility model, but the specific scope of the present utility model is not limited to the above description, and any simple replacement or modification within the scope of the technical idea disclosed in the present utility model and according to the technical scheme of the present utility model should be within the scope of the present utility model.
Claims (4)
1. The heat energy utilization device for refining the tail gas of the high-pressure boiler is characterized by comprising a first heat exchanger (3) and a second heat exchanger (5), wherein the first heat exchanger (3) and the second heat exchanger (5) are arranged in a flue (15) of the high-pressure boiler (1), a gas inlet of the first heat exchanger (3) is connected with external air, a gas outlet of the first heat exchanger (3) is connected with a fan (2), and the fan (2) is connected with a boiler furnace; the side wall of the flue (15) is provided with a spark detector (6), the second heat exchanger (5) is connected with the gas-separating device (4), a connecting pipeline of the second heat exchanger (5) and the gas-separating device (4) is a first connecting pipeline (11), a second valve (7) is arranged on the first connecting pipeline (11), the second heat exchanger (5) is connected with the tubular heat exchanger (14), a connecting pipeline of the second heat exchanger (5) and the tubular heat exchanger (14) is a second connecting pipeline (12), a third valve (8) is arranged on the second connecting pipeline (12), a third connecting pipeline (10) is arranged between the first connecting pipeline (11) and the second connecting pipeline (12), a first valve (9) is arranged on the third connecting pipeline (10), and a temperature sensor (16) is arranged on the second connecting pipeline (12).
2. The tail gas heat energy utilization device of the refining high-pressure boiler according to claim 1, wherein the first valve (9), the second valve (7) and the third valve (8) are all connected with a control system (13).
3. The tail gas heat energy utilization device of the refining high-pressure boiler according to claim 2, wherein the spark detector and the temperature sensor (16) are connected with a control system (13).
4. A refining high-pressure boiler tail gas heat energy utilization device as defined in claim 3, characterized in that an oil pump (17) is arranged on the first connecting pipeline (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320975864.XU CN219640749U (en) | 2023-04-26 | 2023-04-26 | Tail gas heat energy utilization device for refining high-pressure boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320975864.XU CN219640749U (en) | 2023-04-26 | 2023-04-26 | Tail gas heat energy utilization device for refining high-pressure boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219640749U true CN219640749U (en) | 2023-09-05 |
Family
ID=87810844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320975864.XU Active CN219640749U (en) | 2023-04-26 | 2023-04-26 | Tail gas heat energy utilization device for refining high-pressure boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219640749U (en) |
-
2023
- 2023-04-26 CN CN202320975864.XU patent/CN219640749U/en active Active
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