CN220793909U - Cooling air waste heat power generation system of sintering furnace - Google Patents
Cooling air waste heat power generation system of sintering furnace Download PDFInfo
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- CN220793909U CN220793909U CN202321371040.8U CN202321371040U CN220793909U CN 220793909 U CN220793909 U CN 220793909U CN 202321371040 U CN202321371040 U CN 202321371040U CN 220793909 U CN220793909 U CN 220793909U
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- 239000002918 waste heat Substances 0.000 title claims abstract description 50
- 238000005245 sintering Methods 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 title claims abstract description 19
- 238000010248 power generation Methods 0.000 title claims abstract description 16
- 238000004321 preservation Methods 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 10
- 238000004064 recycling Methods 0.000 claims description 9
- 238000001704 evaporation Methods 0.000 claims description 7
- 230000008020 evaporation Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 14
- 230000015572 biosynthetic process Effects 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Abstract
The utility model relates to a sintering furnace cooling air waste heat power generation system, which also comprises a first compressor and a second compressor, wherein the first compressor is provided with a first air inlet and a first air outlet, the second compressor is provided with a second air inlet and a second air outlet, the first air inlet is connected with the outlet end of an evaporator, the first air outlet is connected with the second air inlet, and the second air outlet is communicated with a heat exchange module; the outlet of the regulator is communicated with the heat exchanger through a heat preservation pipe, and a filtering part is arranged on the heat preservation pipe. The heat exchange efficiency of the heat exchange module can be greatly enhanced, namely, the formation efficiency of a heat source is increased; it is also ensured that the temperature of the hot gas discharged from the regulator is not lost and impurities in the hot gas can be filtered.
Description
Technical Field
The utility model relates to the technical field of sintering furnace cooling air waste heat power generation systems, in particular to a sintering furnace cooling air waste heat power generation system.
Background
Waste heat power generation is often adopted in the field of high energy consumption to reduce equipment energy consumption and improve enterprise benefits. The waste heat of the equipment is generally recovered through a waste heat boiler.
However, the waste heat boiler works in a heat exchange mode, so that the heat value recovery efficiency is low, the temperature output is low, and waste heat recovery power generation of small-scale equipment is not facilitated.
Second, even through waste heat recovery, the equipment still has a large amount of heat value emissions. On one hand, the waste heat boiler has lower efficiency and cannot quickly and efficiently absorb the waste heat of equipment; on the other hand, heat is discharged with steam in a large amount in the waste heat power generation process.
Thus, a sintering furnace cooling air waste heat power generation system, such as the one disclosed in patent application No. 202120973620.9 issued to 2022.02.01, has been developed, which can collect and recycle waste heat.
It still has the following drawbacks: the heat preservation effect of the pipeline between the regulator and the heat exchanger is poor, and the temperature loss is easy to occur, so that the waste heat utilization is affected.
Accordingly, in the present patent application, the applicant has studied a sintering furnace cooling wind waste heat power generation system to solve the above-mentioned problems.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art, and mainly aims to provide a sintering furnace cooling wind waste heat power generation system which can greatly enhance the heat exchange efficiency of a heat exchange module, namely the formation efficiency of a heat source; it is also ensured that the temperature of the hot gas discharged from the regulator is not lost and impurities in the hot gas can be filtered.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the system comprises a waste heat collecting system communicated with a cooling air outlet and a waste heat recycling system communicated with the atmosphere, wherein the waste heat recycling system is communicated with the waste heat collecting system;
the waste heat collection system comprises an evaporation module, an expansion valve and a heat exchange module; the evaporation module comprises a first shell and an evaporator fixed in the first shell; the heat exchange module is also communicated with an expansion valve inlet, a first shell air inlet and a first shell air outlet are formed in the first shell, a cooling air discharge pipe of the sintering unit is arranged in the first shell, and a heat source is provided for the steam unit;
the waste heat recycling system comprises a regulator and a heat exchanger, wherein a first inlet of the regulator is communicated with an exhaust port of the first shell, a second inlet of the regulator is communicated with a steam discharge port of the steam unit, and an outlet of the heat exchanger is communicated with the outside atmosphere;
the waste heat collection system further comprises a first compressor and a second compressor, the first compressor is provided with a first air inlet and a first air outlet, the second compressor is provided with a second air inlet and a second air outlet, the first air inlet is connected with the outlet end of the evaporator, the first air outlet is connected with the second air inlet, and the second air outlet is communicated with the heat exchange module;
the outlet of the regulator is communicated with the heat exchanger through a heat preservation pipe, and a filtering part is arranged on the heat preservation pipe.
As a preferable scheme, the regulator comprises a second housing, a first air inlet pipe and a second air inlet pipe which are arranged on the other side of the second housing together;
two partition plates are arranged in the second shell, and the second shell is divided into a first cavity, a second cavity and a third cavity by the two partition plates;
the first chamber is communicated with one end of a first air inlet pipe through a first inlet, the other end of the first air inlet pipe is communicated with an air outlet of the first shell, the second chamber is communicated with one end of a second air inlet pipe through a second inlet, and the other end of the second air inlet pipe is communicated with a steam discharge port of the steam unit; the third chamber is communicated with one end of a heat preservation pipe through an outlet of the regulator, and the other end of the heat preservation pipe is communicated with the heat exchanger;
the third chamber is located between the first chamber and the second chamber, switch control valves are arranged on the two partition plates, one switch control valve can be opened/closed to be communicated with or cut off the first chamber from being communicated with the third chamber, and the other switch control valve can be opened/closed to be communicated with or cut off the second chamber from being communicated with the third chamber.
As a preferable scheme, the filtering part comprises a box body and a heat preservation pad arranged on the inner wall of the box body, and a filter screen is longitudinally arranged in the inner cavity of the box body.
As a preferable mode, check valves are arranged on the first air inlet pipe and the second air inlet pipe.
As a preferable scheme, the heat exchanger is a shell-and-tube heat exchanger, and an internal pipeline of the shell-and-tube heat exchanger is used for being communicated with an air inlet pipeline of the sintering unit.
Compared with the prior art, the utility model has obvious advantages and beneficial effects, in particular: the heat exchange efficiency of the heat exchange module can be greatly enhanced, namely the formation efficiency of a heat source is increased mainly through the cooperation of the first compressor and the second compressor; moreover, the heat preservation pipe and the filtering part are adopted between the regulator and the heat exchanger, so that the temperature of the hot gas discharged by the regulator is ensured not to be lost, and impurities in the hot gas can be filtered;
secondly, through the structural design of the regulator, whether corresponding on-off control valves are opened or not can be selected according to waste heat recovery requirements, and then waste heat recovery control is realized, and meanwhile, the gas usage amount is controlled.
In order to more clearly illustrate the structural features and efficacy of the present utility model, a detailed description thereof will be given below with reference to the accompanying drawings and examples.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of a filter portion according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a regulator according to an embodiment of the present utility model.
Reference numerals illustrate:
10. evaporation module
20. Heat exchange module 21 and expansion valve
31. First compressor 32, second compressor
40. Regulator 50, heat exchanger
41. First air inlet pipe 42, second air inlet pipe
43. Second housing 44, check valve
431. Partition plate
432. First chamber 433, second chamber
434. Third chamber 435, on-off control valve
50. Heat exchanger
60. Thermal insulation pipe 601 and filtering part
61. The box 62, the heat preservation pad 63, the filter screen.
Detailed Description
The utility model is further described below with reference to the drawings and detailed description.
As shown in fig. 1 to 3, the cooling air waste heat power generation system of the sintering furnace comprises a waste heat collection system communicated with a cooling air outlet and a waste heat recycling system communicated with the atmosphere, wherein the waste heat recycling system is communicated with the waste heat collection system.
The waste heat collection system comprises an evaporation module 10, an expansion valve 21, a heat exchange module 20, a first compressor 31 and a second compressor 32; the evaporation module 10 comprises a first housing and an evaporator fixed in the first housing; the evaporator inlet end is communicated with the expansion valve 21, the heat exchange module 20 is also communicated with the expansion valve inlet, a first shell air inlet and a first shell air outlet are formed in the first shell, a cooling air discharge pipe of the sintering unit is arranged in the first shell, and the heat exchange module 20 provides a heat source for the steam unit.
The first compressor 31 has a first air inlet and a first air outlet, the second compressor 32 has a second air inlet and a second air outlet, the first air inlet is connected with the outlet end of the evaporator, the first air outlet is connected with the second air inlet, and the second air outlet is communicated with the heat exchange module 20;
the series connection of the first compressor 31 and the second compressor 32 can greatly reduce the discharge temperature of both compressors (i.e. the temperature of the refrigerant gas), and the refrigerant gas can reach higher pressure, so that the power consumption of the compressor is saved, and the heat exchange efficiency of the condenser of the heat exchange module 20 is greatly enhanced, namely the formation efficiency of a heat source is increased.
The heat exchange module 20 comprises a condenser and a heat exchange shell, the condenser is communicated with the second compressor 32 and the expansion valve 21, the heat exchange shell outside the condenser is communicated with a system to be heated, and the heat exchange module 20 provides a heat source for the next system.
The waste heat recycling system comprises a regulator 40 and a heat exchanger 50, wherein a first inlet of the regulator 40 is communicated with a first shell exhaust port, a second inlet of the regulator 40 is communicated with a steam discharge port of a steam unit, and an outlet of the heat exchanger 50 is communicated with the outside atmosphere; the outlet of the regulator 40 is in communication with the heat exchanger 50 via a heat preservation pipe 60.
In this embodiment, the regulator 40 includes a second housing 43, and a first air inlet pipe 41 and a second air inlet pipe 42 disposed on the other side of the second housing 43. Preferably, check valves 44 are provided on both the first intake pipe 41 and the second intake pipe 42.
Two partition plates 431 are disposed in the second housing 43, and the second housing 43 is partitioned into a first chamber 432, a second chamber 433 and a third chamber 434 by the two partition plates 431;
the first chamber 432 is communicated with one end of the first air inlet pipe 41 through a first inlet, the other end of the first air inlet pipe 41 is communicated with the first shell exhaust port, the second chamber 433 is communicated with one end of the second air inlet pipe 42 through a second inlet, and the other end of the second air inlet pipe 42 is communicated with a steam discharge port of the steam unit; the third chamber 434 is communicated with one end of the heat preservation pipe 60 through the outlet of the regulator 40, and the other end of the heat preservation pipe 60 is communicated with the heat exchanger 50;
the third chamber 434 is located between the first chamber 432 and the second chamber 433, on both partition plates 431 are provided with switch control valves 435, and one switch control valve 435 can be opened/closed to communicate the first chamber 432 with the third chamber 434 or shut off the other switch control valve 435 can be opened/closed to communicate the second chamber 433 with the third chamber 434. Whether to open the corresponding switch control valve 435 can be selected according to the waste heat recovery requirement, so that waste heat recovery control is realized, and the gas usage amount is controlled.
The heat preservation pipe 60 is provided with a filtering part 601. In this embodiment, the filtering portion 601 includes a case 61 and a heat insulation pad 62 disposed on an inner wall of the case 61, and a filter screen 63 is longitudinally disposed in an inner cavity of the case 61. Through the filter screen 63, impurities in the steam discharged from the generator set can be filtered.
The heat exchanger 50 is a shell-and-tube heat exchanger 50, and an internal pipeline of the shell-and-tube heat exchanger 50 is used for communicating with an air inlet pipeline of the sintering unit. The heat exchanger 50 is mainly used for heating the inlet air of the sintering furnace, increasing the temperature in the sintering furnace or reducing the gas proportion of the sintering furnace.
The heat exchange device is mainly characterized in that the heat exchange efficiency of the heat exchange module can be greatly enhanced, namely the formation efficiency of a heat source is increased by matching the first compressor with the second compressor; moreover, the heat preservation pipe and the filtering part are adopted between the regulator and the heat exchanger, so that the temperature of the hot gas discharged by the regulator is ensured not to be lost, and impurities in the hot gas can be filtered;
secondly, through the structural design of the regulator, whether corresponding on-off control valves are opened or not can be selected according to waste heat recovery requirements, and then waste heat recovery control is realized, and meanwhile, the gas usage amount is controlled.
The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the technical scope of the present utility model, so that any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present utility model still fall within the scope of the technical solutions of the present utility model.
Claims (5)
1. The system comprises a waste heat collecting system communicated with a cooling air outlet and a waste heat recycling system communicated with the atmosphere, wherein the waste heat recycling system is communicated with the waste heat collecting system;
the waste heat collection system comprises an evaporation module, an expansion valve and a heat exchange module; the evaporation module comprises a first shell and an evaporator fixed in the first shell; the heat exchange module is also communicated with an expansion valve inlet, a first shell air inlet and a first shell air outlet are formed in the first shell, a cooling air discharge pipe of the sintering unit is arranged in the first shell, and a heat source is provided for the steam unit;
the waste heat recycling system comprises a regulator and a heat exchanger, wherein a first inlet of the regulator is communicated with an exhaust port of the first shell, a second inlet of the regulator is communicated with a steam discharge port of the steam unit, and an outlet of the heat exchanger is communicated with the outside atmosphere;
the method is characterized in that: the waste heat collection system further comprises a first compressor and a second compressor, the first compressor is provided with a first air inlet and a first air outlet, the second compressor is provided with a second air inlet and a second air outlet, the first air inlet is connected with the outlet end of the evaporator, the first air outlet is connected with the second air inlet, and the second air outlet is communicated with the heat exchange module;
the outlet of the regulator is communicated with the heat exchanger through a heat preservation pipe, and a filtering part is arranged on the heat preservation pipe.
2. The sintering furnace cooling wind waste heat power generation system according to claim 1, wherein: the adjuster comprises a second shell, a first air inlet pipe and a second air inlet pipe which are arranged on the other side of the second shell together;
two partition plates are arranged in the second shell, and the second shell is divided into a first cavity, a second cavity and a third cavity by the two partition plates;
the first chamber is communicated with one end of a first air inlet pipe through a first inlet, the other end of the first air inlet pipe is communicated with an air outlet of the first shell, the second chamber is communicated with one end of a second air inlet pipe through a second inlet, and the other end of the second air inlet pipe is communicated with a steam discharge port of the steam unit; the third chamber is communicated with one end of a heat preservation pipe through an outlet of the regulator, and the other end of the heat preservation pipe is communicated with the heat exchanger;
the third chamber is located between the first chamber and the second chamber, switch control valves are arranged on the two partition plates, one switch control valve can be opened/closed to be communicated with or cut off the first chamber from being communicated with the third chamber, and the other switch control valve can be opened/closed to be communicated with or cut off the second chamber from being communicated with the third chamber.
3. The sintering furnace cooling wind waste heat power generation system according to claim 1, wherein: the filtering part comprises a box body and a heat preservation pad arranged on the inner wall of the box body, and a filter screen is longitudinally arranged in the inner cavity of the box body.
4. The sintering furnace cooling wind waste heat power generation system according to claim 2, wherein: check valves are arranged on the first air inlet pipe and the second air inlet pipe.
5. The sintering furnace cooling wind waste heat power generation system according to claim 1, wherein: the heat exchanger is a shell-and-tube heat exchanger, and an internal pipeline of the shell-and-tube heat exchanger is communicated with an air inlet pipeline of the sintering unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321371040.8U CN220793909U (en) | 2023-05-31 | 2023-05-31 | Cooling air waste heat power generation system of sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321371040.8U CN220793909U (en) | 2023-05-31 | 2023-05-31 | Cooling air waste heat power generation system of sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220793909U true CN220793909U (en) | 2024-04-16 |
Family
ID=90631721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321371040.8U Active CN220793909U (en) | 2023-05-31 | 2023-05-31 | Cooling air waste heat power generation system of sintering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220793909U (en) |
-
2023
- 2023-05-31 CN CN202321371040.8U patent/CN220793909U/en active Active
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