CN218001631U - Low-temperature flue gas waste heat heating system with electric heating and energy storage functions - Google Patents
Low-temperature flue gas waste heat heating system with electric heating and energy storage functions Download PDFInfo
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- CN218001631U CN218001631U CN202222144558.XU CN202222144558U CN218001631U CN 218001631 U CN218001631 U CN 218001631U CN 202222144558 U CN202222144558 U CN 202222144558U CN 218001631 U CN218001631 U CN 218001631U
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Abstract
The utility model relates to a waste heat utilization technical field, in particular to low temperature flue gas waste heat heating system of electrified heating energy storage, including the fan, the flue gas heat exchanger, first circulating pump, the heat-retaining device, be equipped with electric heater unit among the heat-retaining device, the fan, the flue gas heat exchanger passes through the pipe connection of cigarette wind, and the flue gas heat exchanger passes through first pipe connection heat-retaining device, be equipped with first circulating pump on the first pipeline, the heat-retaining device passes through the hot user of second pipe connection, on the one hand, through increasing the heat-retaining device, can fine adaptation production, adjust the peak valley of waste heat, stabilize the heating load, on the other hand, be provided with electric heater unit among the heat-retaining device, can adopt electric heating's mode external heat supply when there is not waste heat or waste heat not enough, also can utilize the low valley electricity to carry out the energy storage simultaneously, realize the continuity and the stability of heating, and improve the economic nature of heating.
Description
Technical Field
The utility model relates to a waste heat utilization technology field, in particular to low temperature flue gas waste heat heating system of electrified heating energy storage.
Background
Industrial enterprises discharge a large amount of waste heat, and cannot utilize the waste heat well due to production limitations. The main reason is that the production is unstable, the load is high or low, and the generated heat source is also unstable, and the heat quantity is not large or small, which brings problems to the use. On the other hand, with the development of photovoltaic and wind power, the peak-to-valley difference of social power demand is continuously increased, so that the load of a power system is extremely unbalanced, and great difficulty is brought to the operation of a power grid. Therefore, the peak clipping and valley filling are adopted, and the low valley electricity is utilized to store energy, so that the heat supply cost can be effectively reduced, and the peak clipping of a power grid is facilitated.
Therefore, it is an urgent technical problem in the industry to provide a waste heat heating system which can effectively utilize waste heat, has electrical heating energy storage, and can realize the continuity, stability and economy of heating.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a low temperature flue gas waste heat heating system of hot-line heating energy storage.
The utility model discloses a low temperature flue gas waste heat heating system of electrified heating energy storage's technical scheme as follows:
including fan, gas heater, first circulating pump, heat-retaining device, be equipped with electric heater unit among the heat-retaining device, fan, gas heater pass through the cigarette wind pipe connection, just gas heater passes through first pipe connection heat-retaining device, be equipped with first circulating pump on the first pipeline, heat-retaining device passes through the hot user of second pipe connection.
The utility model discloses a low temperature flue gas waste heat heating system of electrified heating energy storage's beneficial effect as follows:
on the one hand, through increasing heat-retaining device, can fine adaptation production, adjust the peak valley of waste heat, stabilize the heating load, on the other hand is provided with electric heater unit among the heat-retaining device, can adopt the external heat supply of electric heating's mode when no waste heat or waste heat are not enough, also can utilize the low ebb electricity to carry out the energy storage simultaneously, realize the continuity and the stability of heating to improve the economic nature of heating.
On the basis of the technical scheme, the utility model discloses a low temperature flue gas waste heat heating system of electrified heating energy storage can also be as follows the improvement.
Further, still include the third pipeline, the third pipeline is connected between first subduct and third subduct, still be equipped with first valve on the third pipeline, first subduct indicates: the pipeline between the output end of the heat storage device and the input end of the smoke heat exchanger on the first pipeline, and the third sub-pipeline refers to: a conduit on the second conduit between the output of the thermal user and the input of the thermal storage device.
Furthermore, a second valve is further arranged on the first sub-pipeline.
Further, still include the fourth pipeline, the third pipeline is connected between second subduct and fourth subduct, still be equipped with the third valve on the fourth pipeline, second subduct indicates: the pipeline on the first pipeline is positioned between the input end of the heat storage device and the output end of the smoke heat exchanger, and the fourth sub-pipeline refers to: a conduit on the second conduit between the input of the thermal user and the output of the thermal storage device.
The beneficial effect of adopting the above further scheme is: the waste heat of the flue gas can be directly supplied to users without heat storage of the heat storage device; the function of supplying heat to users after the waste heat of the flue gas is stored by the heat storage device can be realized, and the system can be flexibly adjusted.
Further, the first circulating pump is connected to the second sub-pipe.
Further, a second circulating pump and a fourth valve are further arranged on the third sub-pipeline.
Further, the device also comprises a liquid supplementing device, and the liquid supplementing device is connected with the first sub-pipeline.
Drawings
Fig. 1 is a structural diagram of a low-temperature flue gas waste heat heating system with electric heating and energy storage according to an embodiment of the present invention;
in the drawings, the reference numbers indicate the following list of parts:
1. a fan; 2. a flue gas heat exchanger; 3. a flue gas duct; 41. a first circulation pump; 42. a second circulation pump; 51. a first valve; 52. a second valve; 53. a third valve; 54. a fourth valve; 6. a heat storage device; 7. an electric heating device; 8. a hot user; 9. a liquid replenishing device; 101. a first subduct; 102. a second subduct; 103. a third subduct; 104. a fourth subduct; 11. a third pipeline; 12. a fourth conduit.
The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.
Detailed Description
It should be understood that the description of the embodiments is merely for purposes of illustration and is not intended to limit the embodiments of the present invention.
As shown in fig. 1, the utility model discloses a low temperature flue gas waste heat heating system of electrified heating energy storage, including fan 1, gas heater 2, first circulating pump 41, heat-retaining device 6, be equipped with electric heater unit 7 among the heat-retaining device 6, fan 1, gas heater 2 pass through the pipe connection of cigarette wind 3 and connect, and gas heater 2 passes through first pipe connection heat-retaining device 6, is equipped with first circulating pump 41 on the first pipeline, and heat-retaining device 6 passes through second pipe connection hot user 8.
The heat storage medium in the heat storage device 6 may be a low-temperature, medium-temperature or high-temperature medium, specifically water, a phase change material, molten salt, or the like.
On the one hand, through increasing heat-retaining device 6, can fine adaptation production, adjust the peak valley of waste heat, stabilize the heat supply load, on the other hand is provided with electric heater unit 7 among the heat-retaining device 6, can adopt the mode of electrical heating to supply heat to the outside when no waste heat or waste heat are not enough, also can utilize the low valley electricity to carry out the energy storage simultaneously, realize the continuity and the stability of heating to improve the economic nature of heating.
Optionally, in the above technical solution, the third pipeline 11 is further included, the third pipeline 11 is connected between the first sub-pipeline 101 and the third sub-pipeline 103, the third pipeline 11 is further provided with a first valve 51, and the first sub-pipeline 101 indicates: the pipeline between the output end of the heat storage device 6 and the input end of the flue gas heat exchanger 2 on the first pipeline, and the third sub-pipeline 103 refers to: a pipe on the second pipe between the output of the heat consumer 8 and the input of the heat storage device 6.
Optionally, in the above technical solution, the first sub-pipe 101 is further provided with a second valve 52.
Optionally, in the above technical solution, the third sub-pipe 102 further includes a fourth sub-pipe 12, the third pipe 11 is connected between the second sub-pipe 102 and the fourth sub-pipe 104, the fourth pipe 12 is further provided with a third valve 53, and the second sub-pipe 102 refers to: the pipeline between the input end of the heat storage device 6 and the output end of the flue gas heat exchanger 2 on the first pipeline, and the fourth sub-pipeline 104 refers to: a pipe on the second pipe between the input of the heat consumer 8 and the output of the heat storage device 6.
That is, the first pipe includes a first sub-pipe 101 and a second sub-pipe 102, and the second pipe includes a third sub-pipe 103 and a fourth sub-pipe 104.
Optionally, in the above technical solution, the first circulation pump 41 is connected to the second sub-pipe 102.
Optionally, in the above technical solution, the third sub-pipe 103 is further provided with a second circulation pump 42 and a fourth valve 54.
Optionally, in the above technical solution, a liquid supplementing device 9 is further included, the liquid supplementing device 9 is connected to the first sub-pipe 101, and the liquid supplementing device 9 is used for supplementing a medium, such as water, into the first sub-pipe 101.
As the first valve 51, the second valve 52, the third valve 53, and the fourth valve 54, a manually controlled valve or an electrically controlled valve may be used.
The utility model discloses low temperature flue gas waste heat heating system of electrified heating energy storage's theory of operation as follows:
1) The heat of the flue gas waste heat is converted into the heat of a circulating working medium (such as water) through a flue gas heat exchanger, and then the heat can be stored in a heat storage device or directly supplied to the outside; the method comprises the following specific steps:
high-temperature flue gas with a large amount of waste heat discharged by industrial enterprises enters from a flue gas and air pipeline 3, heat exchange is carried out through a flue gas heat exchanger 2, and then the flue gas heat exchanger 2 outputs the obtained heat through a pipeline where a fan 1 is located, the obtained heat is conveyed to a heat storage device 6 through media such as water and phase change materials and molten salt in a second sub-pipeline 102 by the flue gas heat exchanger 2, namely, the heat storage media such as water, phase change materials and molten salt in the heat storage device 6 are heated, then the media of the second sub-pipeline 102 are changed into low temperature and return to the flue gas heat exchanger 2 through a first sub-pipeline 101, and the heat storage media such as water, phase change materials and molten salt in the heat storage device 6 are continuously heated through circulation to realize heat storage;
when heat supply needs to be carried out to the heat user 8, the first heat supply mode is as follows: open first valve 51 and third valve 53 and realize the thermal cycle, for heat user 8 supplies heat, at this moment, is equivalent to that gas heater 2 directly supplies heat to heat user 8, and the second kind of heat supply mode is: the first valve 51 and the third valve 53 are closed, the fourth valve 54 is opened, and heat is supplied to the heat consumer through the fourth sub-pipe 104 and the third sub-pipe 103, i.e. the heat storage medium in the heat storage device 6 is circulated through the heat consumer to supply heat to the heat consumer 8.
It will be appreciated that the degree of opening of the first valve 51, the third valve 53 and the fourth valve 54 may be adjusted to inform the rate of heating of the hot user 8.
That is to say, the utility model can realize that the flue gas waste heat directly supplies heat to the heat user 8 without heat storage of the heat storage device 6; the function of supplying heat to the heat user 8 after the waste heat of the flue gas is stored by the heat storage device 6 can also be realized; the heat storage device 6 can also realize the function of supplying heat to heat users by using the waste heat of the flue gas, and the operation adjustment of the system can be flexibly carried out according to the requirement.
2) The heat storage device 6 has certain heat storage capacity, can adjust the amplitude of heat fluctuation caused by production load fluctuation, and realizes the functions of peak clipping and valley filling;
3) Through electric heating device 7, can store the electric energy in heat storage device 6 with the form of heat energy, can regard as security personnel's heat source or peak load to adjust usefulness, also can absorb the low ebb electricity, reduce the energy cost, it is simple and convenient to say, when the electricity price is low, accessible electric heating device 7 heats the heat-retaining medium in the heat storage device 6, absorb the low ebb electricity, reduce the energy cost, when the electricity price is high, do not heat the heat-retaining medium in the heat storage device 6 through electric heating device 7, can adjust the peak load of electric quantity.
The above is only the preferred embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structure changes made by using the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the patent protection scope of the present invention.
Claims (7)
1. The utility model provides a low temperature flue gas waste heat heating system of electrified heating energy storage, its characterized in that, including fan (1), gas heater (2), first circulating pump (41), heat-retaining device (6), be equipped with electric heater unit (7) in heat-retaining device (6), fan (1), gas heater (2) are connected through cigarette wind pipeline (3), just gas heater (2) are connected through first pipeline heat-retaining device (6), be equipped with first circulating pump (41) on the first pipeline, heat-retaining device (6) are through second pipe connection heat consumer (8).
2. The low-temperature flue gas waste heat heating system with electric heating and energy storage functions as claimed in claim 1, further comprising a third pipeline (11), wherein the third pipeline (11) is connected between the first sub-pipeline (101) and the third sub-pipeline (103), the third pipeline (11) is further provided with a first valve (51), and the first sub-pipeline (101) refers to: the pipeline on the first pipeline between the output end of the heat storage device (6) and the input end of the flue gas heat exchanger (2), and the third sub-pipeline (103) refers to: a pipe on the second pipe between the output of the heat consumer (8) and the input of the heat storage device (6).
3. The heating system using the residual heat of the flue gas with low temperature and the energy storage function as claimed in claim 2, wherein a second valve (52) is further arranged on the first sub-pipeline (101).
4. The system for heating by using the low-temperature residual heat from flue gas as claimed in claim 3, further comprising a fourth pipeline (12), wherein the fourth pipeline (12) is connected between the second sub-pipeline (102) and the fourth sub-pipeline (104), the fourth pipeline (12) is further provided with a third valve (53), and the second sub-pipeline (102) refers to: the pipeline on the first pipeline is positioned between the input end of the heat storage device (6) and the output end of the smoke heat exchanger (2), and the fourth sub-pipeline (104) refers to: a pipe on the second pipe between the input of the heat consumer (8) and the output of the heat storage device (6).
5. The system as claimed in claim 4, wherein the first circulation pump (41) is connected to the second sub-pipe (102).
6. The low-temperature flue gas waste heat heating system with electric heating and energy storage functions as claimed in any one of claims 2 to 5, wherein a second circulating pump (42) and a fourth valve (54) are further arranged on the third sub-pipeline (103).
7. The heating system using the low-temperature flue gas waste heat for the electric heating energy storage according to any one of claims 2 to 5, further comprising a liquid supplementing device (9), wherein the liquid supplementing device (9) is connected with the first sub-pipeline (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222144558.XU CN218001631U (en) | 2022-08-15 | 2022-08-15 | Low-temperature flue gas waste heat heating system with electric heating and energy storage functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222144558.XU CN218001631U (en) | 2022-08-15 | 2022-08-15 | Low-temperature flue gas waste heat heating system with electric heating and energy storage functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218001631U true CN218001631U (en) | 2022-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222144558.XU Active CN218001631U (en) | 2022-08-15 | 2022-08-15 | Low-temperature flue gas waste heat heating system with electric heating and energy storage functions |
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| Country | Link |
|---|---|
| CN (1) | CN218001631U (en) |
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2022
- 2022-08-15 CN CN202222144558.XU patent/CN218001631U/en active Active
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