CN114183767A - Thermodynamic system - Google Patents
Thermodynamic system Download PDFInfo
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- CN114183767A CN114183767A CN202111487186.4A CN202111487186A CN114183767A CN 114183767 A CN114183767 A CN 114183767A CN 202111487186 A CN202111487186 A CN 202111487186A CN 114183767 A CN114183767 A CN 114183767A
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- energy storage
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- phase change
- storage element
- change energy
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- 238000004146 energy storage Methods 0.000 claims abstract description 157
- 230000008859 change Effects 0.000 claims abstract description 130
- 239000000779 smoke Substances 0.000 claims abstract description 12
- 239000003546 flue gas Substances 0.000 claims description 45
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 43
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 238000004804 winding Methods 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 10
- 238000006477 desulfuration reaction Methods 0.000 claims description 8
- 230000023556 desulfurization Effects 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 4
- 239000011232 storage material Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000889 atomisation Methods 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/006—Layout of treatment plant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/003—Arrangements of devices for treating smoke or fumes for supplying chemicals to fumes, e.g. using injection devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/028—Control arrangements therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/20—Sulfur; Compounds thereof
-
- 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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The embodiment of the application provides a thermodynamic system, relates to thermal engineering technical field to there is the great problem of temperature fluctuation in the steam that the boiler row of solving emits. The thermodynamic system comprises: a boiler, a heat exchanger and a temperature regulator; the boiler is provided with a smoke discharge port and a steam discharge port, the heat exchanger is provided with a smoke inlet, a smoke outlet, a steam inlet and a steam outlet, and the temperature regulator comprises a first phase change energy storage element, a second phase change energy storage element and a third phase change energy storage element; the smoke discharge port can be connected with the smoke inlet, the steam discharge port can be connected with the steam inlet, and the steam outlet can be connected with the first phase change energy storage element, the second phase change energy storage element and the third phase change energy storage element respectively.
Description
Technical Field
The application relates to the technical field of thermal engineering, in particular to a thermodynamic system.
Background
In thermodynamic systems, steam is often used as a carrier for the thermal supply. In the related art, the steam discharged from the boiler has a problem of large temperature fluctuation due to unstable combustion of the boiler.
Disclosure of Invention
The embodiment of the application provides a thermodynamic system to there is the great problem of temperature fluctuation in the steam that the solution boiler discharged out.
The thermodynamic system that this application embodiment provided includes: a boiler, a heat exchanger and a temperature regulator;
the boiler is provided with a smoke discharge port and a steam discharge port, the heat exchanger is provided with a smoke inlet, a smoke outlet, a steam inlet and a steam outlet,
the temperature regulator comprises a first phase change energy storage element, a second phase change energy storage element, a third phase change energy storage element, a first switch valve, a second switch valve, a third switch valve, a fourth switch valve, a fifth switch valve, a sixth switch valve and a steam delivery pipe;
the first phase change energy storage element is provided with a first phase change energy storage medium, the phase change temperature of the first phase change energy storage medium is a first temperature, the second phase change energy storage element is provided with a second phase change energy storage medium, the phase change temperature of the second phase change energy storage medium is a second temperature, the third phase change energy storage element is provided with a third phase change energy storage medium, the phase change temperature of the third phase change energy storage medium is a third temperature, wherein the first temperature, the second temperature and the third temperature are sequentially reduced,
the first switch valve, the third switch valve and the fifth switch valve are sequentially arranged on the steam conveying pipe, one side of the steam conveying pipe, which is close to the first switch valve, is provided with a first connecting part, the part of the steam conveying pipe, which is positioned between the first switch valve and the third switch valve, is provided with a second connecting part, the part of the steam conveying pipe, which is positioned between the third switch valve and the fifth switch valve, is provided with a third connecting part, one side of the steam conveying pipe, which is close to the fifth switch valve, is provided with a fourth connecting part,
one end of the steam conveying pipe, which is close to the first switch valve, is an inlet of a steam pipe, and one end of the steam conveying pipe, which is close to the fifth switch valve, is an outlet of the steam pipe;
the flue gas discharge port with the flue gas entry is connected, the steam discharge port with the steam inlet is connected, the steam outlet with the steam pipe entry is connected, first phase change energy storage element's first entry warp the second ooff valve with first connecting portion are connected, first phase change energy storage element's first export with the second connecting portion are connected, second phase change energy storage element's second entry warp the fourth ooff valve with the second connecting portion are connected, second phase change energy storage element's second export with third connecting portion are connected, third phase change energy storage element's third entry warp the sixth ooff valve with the third connecting portion are connected, third phase change energy storage element's third export with the fourth connecting portion are connected.
Optionally, the thermodynamic system further comprises a denitration device, the denitration device comprises a denitration reducing agent storage tank, a denitration reducing agent diluter and an atomization injector, the denitration reducing agent storage tank is connected with the denitration reducing agent diluter, the denitration reducing agent diluter is connected with the atomization injector, and the atomization injector is arranged in the boiler.
Optionally, the heat exchanger comprises a heat exchanger housing and a coil, the heat exchanger housing is provided with a first opening, a second opening, a third opening and a fourth opening, the flue gas inlet is arranged at the first opening, the flue gas outlet is arranged at the second opening, the coiled pipe comprises a coiled part, a first extension part and a second extension part, the coiled part is arranged in the heat exchanger shell, one end of the coiled part is connected with the first extension part, the other end of the coiled part is connected with the second extension part, the first extension portion extends out of the heat exchanger shell through the third opening, the second extension portion extends out of the heat exchanger shell through the fourth opening, the steam inlet is arranged at the end part of the first extension part far away from the coiled part, and the steam outlet is arranged at the end part of the second extension part far away from the coiled part.
Optionally, the heat exchanger further comprises a flue gas buffer plate, and the flue gas buffer plate is arranged in the heat exchanger shell.
Optionally, the heat exchanger further includes a support column, the support column is fixedly disposed in the heat exchanger shell, and the coiled pipe is connected to the support column.
Optionally, the thermodynamic system further comprises a desulfurization tower, and the flue gas outlet is connected with the desulfurization tower.
Optionally, the thermodynamic system further comprises a backpressure machine, and the outlet of the steam pipe is connected with the backpressure machine.
Optionally, the first phase change energy storage element includes a first energy storage element housing and a first steam pipe, one end of the first steam pipe is connected to the first inlet, and the other end of the first steam pipe is connected to the first outlet, the first energy storage element housing has a first inner cavity, the first steam pipe is disposed in the first inner cavity, a first accommodating space is disposed between an outer wall of the first steam pipe and the first inner cavity, and the first phase change energy storage medium is disposed in the first accommodating space;
the second phase change energy storage element comprises a second energy storage element shell and a second steam pipeline, one end of the second steam pipeline is connected with the second inlet, the other end of the second steam pipeline is connected with the second outlet, the second energy storage element shell is provided with a second inner cavity, the second steam pipeline is arranged in the second inner cavity, a second accommodating space is arranged between the outer wall of the second steam pipeline and the second inner cavity, and the second phase change energy storage medium is arranged in the second accommodating space;
the third phase-change energy storage element comprises a third energy storage element shell and a third steam pipeline, one end of the third steam pipeline is connected with a third inlet, the other end of the third steam pipeline is connected with a third outlet, the third energy storage element shell is provided with a third inner cavity, the third steam pipeline is arranged in the third inner cavity, a third accommodating space is formed between the outer wall of the third steam pipeline and the third inner cavity, and a third phase-change energy storage medium is arranged in the third accommodating space.
Optionally, the number of the first steam pipeline, the second steam pipeline and the third steam pipeline is multiple, and the first steam pipeline, the second steam pipeline and the third steam pipeline are all corrugated pipes.
Optionally, the first energy storage element shell includes a first outer shell, a first inner shell, and a first heat insulating layer, the first outer shell is sleeved outside the first inner shell, and the first heat insulating layer is sandwiched between the first outer shell and the first inner shell;
the second energy storage element shell comprises a second outer shell, a second inner shell and a second heat insulation layer, the second outer shell is sleeved outside the second inner shell, and the second heat insulation layer is clamped between the second outer shell and the second inner shell;
the third energy storage element shell comprises a third outer shell, a third inner shell and a third heat preservation layer, the third outer shell is sleeved outside the third inner shell, and the third heat preservation layer is clamped between the third outer shell and the third inner shell.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
in an embodiment of the present application, the steam discharged from the steam outlet may be selectively introduced into the first phase change energy storage element, the second phase change energy storage element, or the third phase change energy storage element. The steam discharged from the steam outlet can be maintained in a preset temperature range after being subjected to heat exchange with the first phase change energy storage element, the second phase change energy storage element or the third phase change energy storage element. Therefore, the temperature of the steam output by the thermodynamic system can be stable. In addition, the thermodynamic system that this application embodiment provided possesses the ability of exporting the steam of at least three kinds of different temperatures, can satisfy the demand of steam consumption equipment to different steam temperatures better.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.
Fig. 1 is a schematic diagram of a thermodynamic system provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a temperature regulator according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a heat exchanger provided in an embodiment of the present application;
fig. 4 is a schematic diagram of a first phase change energy storage element according to an embodiment of the present disclosure.
Description of reference numerals:
100-a thermodynamic system; 110-a boiler; 111-flue gas discharge; 112-steam vent; 120-a heat exchanger; 120 a-flue gas inlet; 120 b-a flue gas outlet; 120 c-a steam inlet; 120 d-steam outlet; 121-a heat exchanger housing; 121 a-first opening; 121 b-a second opening; 121 c-a third opening; 121 d-fourth opening; 122-winding the tube; 1221-coiled portion; 1222-a first extension; 1223-a second extension; 123-a flue gas buffer plate; 124-support column; 130-a temperature regulator; 1311-a first phase change energy storage element; 1311 a-a first inlet; 1311 b-a first outlet; 13111-a first energy storage element housing; 13112-a first steam line; 1312-a second phase change energy storage element; 1312 a-a second inlet; 1312 b-a second outlet; 1313-a third phase-change energy storage element; 1313 a-a third inlet; 1313 b-a third outlet; 1321 — a first on-off valve; 1322-a second on-off valve; 1323-a third on/off valve; 1324-a fourth switch valve; 1325-a fifth on-off valve; 1326-sixth on-off valve; 133-steam conveying pipe; 1331-a first connection; 1332-a second connecting portion; 1333-a third connecting portion; 1334-a fourth connecting portion; 1335-steam tube inlet; 1336-outlet of steam tube; 140-a denitrification facility; 141-denitration reducing agent storage tank; 142-denitration reductant diluter; 143-atomizing injector; 150-a desulfurization tower; 160-Back Press.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the 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.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Further, although the terms used in the present application are selected from publicly known and used terms, some of the terms mentioned in the specification of the present application may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.
Further, it is required that the present application is understood not only by the actual terms used but also by the meaning of each term lying within.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
The embodiment of the application provides a thermodynamic system. Referring to fig. 1, a thermodynamic system 100 provided by the present application may include: a boiler 110, a heat exchanger 120, and a thermostat 130. The boiler 110 may be provided with a fume discharge port 111 and a steam discharge port 112, and the heat exchanger 120 may be provided with a fume inlet 120a, a fume outlet 120b, a steam inlet 120c, and a steam outlet 120 d.
The temperature regulator 130 may include a first phase change energy storage element 1311, a second phase change energy storage element 1312, and a third phase change energy storage element 1313. In an embodiment of the present application, the flue gas discharge port 111 may be connected to the flue gas inlet 120a, the steam discharge port 112 may be connected to the steam inlet 120c, and the steam outlet 120d may be connected to the first phase change energy storage element 1311, the second phase change energy storage element 1312, and the third phase change energy storage element 1313, respectively. In this way, the steam discharged from the steam outlet 120d may be selectively introduced into the first phase change energy storage element 1311, the second phase change energy storage element 1312, or the third phase change energy storage element 1313. The steam discharged from the steam outlet 120d may be maintained within a predetermined temperature range after exchanging heat with the first phase change energy storage element 1311, the second phase change energy storage element 1312, or the third phase change energy storage element 1313. Thus, the temperature of the steam output by the thermodynamic system 100 can be made stable.
Referring to fig. 1 and 2, in an embodiment of the present application, the temperature regulator 130 may further include a first switching valve 1321, a second switching valve 1322, a third switching valve 1323, a fourth switching valve 1324, a fifth switching valve 1325, a sixth switching valve 1326, and a steam delivery pipe 133.
The first phase change energy storage element 1311 may be provided with a first phase change energy storage medium, and a phase change temperature of the first phase change energy storage medium may be a first temperature. The second phase change energy storage element 1312 may be provided with a second phase change energy storage medium, and the phase change temperature of the second phase change energy storage medium may be a second temperature. The third phase change energy storage element 1313 may be provided with a third phase change energy storage medium, and the phase change temperature of the third phase change energy storage medium may be a third temperature. Wherein the first temperature, the second temperature, and the third temperature decrease in sequence.
A first switching valve 1321, a third switching valve 1323, and a fifth switching valve 1325 may be sequentially provided to the steam delivery pipe 133. A side of the steam delivery pipe 133 adjacent to the first switching valve 1321 may be provided with a first connection portion 1331. A second connection portion 1332 may be provided at a portion of the steam delivery pipe 133 between the first and third switching valves 1321 and 1323. A third connection portion 1333 may be provided at a portion of the steam delivery pipe 133 between the third switching valve 1323 and the fifth switching valve 1325. A side of the steam delivery pipe 133 adjacent to the fifth switching valve 1325 may be provided with a fourth connection part 1334.
An end of the steam delivery pipe 133 adjacent to the first switching valve 1321 may be a steam pipe inlet 1335, and an end of the steam delivery pipe 133 adjacent to the fifth switching valve 1325 may be a steam pipe outlet 1336.
The flue gas discharge port 111 may be connected to the flue gas inlet 120a, the steam discharge port 112 may be connected to the steam inlet 120c, and the steam outlet 120d may be connected to the steam pipe inlet 1335. The first inlet 1311a of the first phase change energy storage element 1311 may be connected to the first connection portion 1331 through the second switching valve 1322, and the first outlet 1311b of the first phase change energy storage element 1311 may be connected to the second connection portion 1332. The second inlet 1312a of the second phase change energy storage element 1312 may be connected to the second connection 1332 via a fourth switching valve 1324, and the second outlet 1312b of the second phase change energy storage element 1312 may be connected to the third connection 1333. Third inlet 1313a of third phase change energy storage element 1313 is connected to third connection 1333 via sixth switching valve 1326, and third outlet 1313b of third phase change energy storage element 1313 is connected to fourth connection 1334.
For example, in the case where the steam discharged from the steam outlet 120d of the heat exchanger 120 exchanges heat with the first phase change energy storage element 1311, the second, third, and fifth switching valves 1322, 1323, and 1325 may be in an open state, and the first, fourth, and sixth switching valves 1321, 1324, and 1326 may be in a closed state.
In the case where the steam discharged from the steam outlet 120d of the heat exchanger 120 exchanges heat with the second phase change energy storage element 1312, the first, fourth and fifth switching valves 1321, 1324 and 1325 may be in an open state, and the second, third and sixth switching valves 1322, 1323 and 1326 may be in a closed state.
In the case where the steam discharged from the steam outlet 120d of the heat exchanger 120 exchanges heat with the third phase change energy storage element 1313, the first, third, and sixth switching valves 1321, 1323, and 1326 may be in an open state, and the second, fourth, and fifth switching valves 1322, 1324, and 1325 may be in a closed state.
In this way, in the embodiment of the present application, the steam discharged from the steam outlet 120d may be selectively introduced into the first phase change energy storage element 1311, the second phase change energy storage element 1312, or the third phase change energy storage element 1313. The steam discharged from the steam outlet 120d may be maintained within a predetermined temperature range after exchanging heat with the first phase change energy storage element 1311, the second phase change energy storage element 1312, or the third phase change energy storage element 1313. Thus, the temperature of the steam output by the thermodynamic system 100 can be made stable. In addition, the thermodynamic system 100 provided by the embodiment of the present application has the capability of outputting at least three types of steam with different temperatures, so that the requirements of the steam consumption device on different steam temperatures can be better met.
It should be noted that, in the embodiments of the present application, the first phase change energy storage medium, the second phase change energy storage medium, and the third phase change energy storage medium may be made of a phase change energy storage material. The phase change energy storage material is a material which can automatically absorb or release latent heat to the environment by utilizing the phase state or structure change of the material within a certain temperature range so as to regulate and control the environment temperature.
The phase change process of the phase change energy storage material can be understood as follows: when the temperature of the environment where the phase-change energy storage material is located is higher than the phase-change temperature of the phase-change energy storage material, the phase-change energy storage material can absorb and store heat so as to reduce the environment temperature. When the temperature of the environment where the phase change energy storage material is located is lower than the phase change temperature of the phase change energy storage material, the phase change energy storage material can release stored heat so as to improve the environment temperature. In this way, the steam passing through the first phase change energy storage element 1311, the second phase change energy storage element 1312, or the third phase change energy storage element 1313 can be maintained within a certain temperature range.
It should be further noted that, in the embodiment of the present application, the thermal system 100 may include a controller, and the controller may be used to control the first switching valve 1321, the second switching valve 1322, the third switching valve 1323, the fourth switching valve 1324, the fifth switching valve 1325, and the sixth switching valve 1326 to be in an open state or a closed state. Of course, in the embodiment of the present application, the first switching valve 1321, the second switching valve 1322, the third switching valve 1323, the fourth switching valve 1324, the fifth switching valve 1325, and the sixth switching valve 1326 may be controlled to be in the open state or the closed state by the operator of the thermal system 100.
In the embodiment of the present application, the temperature regulator 130 may further include a fourth phase change energy storage element, a seventh switching valve, an eighth switching valve, and the like, which will not be described herein.
Referring to fig. 1, in an embodiment of the present application, the thermodynamic system 100 may further include a denitrification device 140. Denitration device 140 may include a denitration reductant storage tank 141, a denitration reductant diluter 142, and an atomizing injector 143. Denitration reductant holding vessel 141 is connected with denitration reductant diluter 142, and denitration reductant diluter 142 is connected with atomizing injector 143, and atomizing injector 143 is provided in boiler 110. For example, in the embodiment of the present application, the denitration reducing agent storage tank 141 may be configured to contain a denitration reducing agent, wherein the denitration reducing agent may include urea, liquid ammonia, or the like.
Note that the denitration device 140 may further include a shutoff valve. When the flue gas generated by the combustion of the boiler 110 does not contain the nitrate, the shutoff valve can be closed, and the supply of the denitration reducing agent to the boiler 110 can be stopped.
Referring to fig. 3, in an embodiment of the present application, the heat exchanger 120 may include a heat exchanger housing 121 and a coil 122. The heat exchanger case 121 may be provided with a first opening 121a, a second opening 121b, a third opening 121c, and a fourth opening 121 d. The flue gas inlet 120a may be disposed at the first opening 121a and the flue gas outlet 120b may be disposed at the second opening 121 b.
The coiled tube 122 may include a coiled portion 1221, a first extension 1222, and a second extension 1223. The coiled portion 1221 may be disposed within the heat exchanger case 121, one end of the coiled portion 1221 may be connected with the first extension portion 1222, and the other end of the coiled portion 1221 may be connected with the second extension portion 1223. The first extension 1222 may extend out of the heat exchanger housing 121 through the third opening 121c, the second extension 1223 may extend out of the heat exchanger housing 121 through the fourth opening 121d, the steam inlet 120c may be disposed at an end of the first extension 1222 remote from the coiled portion 1221, and the steam outlet 120d may be disposed at an end of the second extension 1223 remote from the coiled portion 1221.
Thus, in the embodiment of the present application, the flue gas can be conveyed into the heat exchanger housing 121 through the flue gas inlet 120a, the steam can be conveyed to the winding pipe 122 through the steam inlet 120c, the winding pipe 122 can be utilized to absorb heat in the flue gas, and the steam can be utilized to absorb heat of the winding pipe 122, so that the problem that the flue gas is directly discharged out of the thermodynamic system 100 and large heat waste exists can be improved.
It should be noted that, in the embodiment of the present application, the number of the winding pipes 122 may be multiple, and multiple winding pipes may be stacked on each other, so that the contact area between the winding pipes 122 and the flue gas may be increased, and the waste heat of the flue gas may be better absorbed. Exemplarily, in an embodiment of the present application, the coiled part 1221 may be coiled in a spiral shape inside the heat exchanger case 121. Of course, in the embodiment of the present application, the coiled part 1221 may be wound in other shapes inside the heat exchanger housing 121, and will not be described herein.
Referring to fig. 3, in an embodiment of the present application, the heat exchanger 120 may further include a flue gas buffer plate 123, and the flue gas buffer plate 123 may be disposed within the heat exchanger housing 121. Like this, can utilize flue gas buffer board 123 to reduce the velocity of flow of flue gas, can be so that the flue gas can fully contact with around pipe 122 to can make around pipe 122 can absorb the waste heat of flue gas better.
Referring to fig. 3, in an embodiment of the present application, the heat exchanger 120 may further include a support column 124, the support column 124 may be fixedly disposed in the heat exchanger housing 121, and the winding tube 122 may be connected to the support column 124. In this way, the support column 124 can be used to support the winding pipe 122, and abnormal noise caused by vibration of the winding pipe 122 under the impact of smoke can be prevented.
Referring to fig. 1, in an embodiment of the present application, the thermodynamic system 100 may further include a desulfurization tower 150, and the flue gas outlet 120b may be connected with the desulfurization tower 150. Thus, the desulfurization tower 150 can be used to desulfurize the flue gas, and the flue gas discharged from the flue gas outlet 120b can be prevented from being directly discharged into the environment to pollute the environment. Of course, when the flue gas output from the flue gas outlet 120b meets the environmental protection standard, the flue gas discharged from the flue gas outlet 120b can also be directly discharged into the environment.
Referring to fig. 1, in an embodiment of the present application, the thermodynamic system 100 may further include a backpressure machine 160, and the steam pipe outlet 1336 may be connected with the backpressure machine 160. Thus, the steam discharged from the steam pipe outlet 1336 can be supplied to the back pressure machine 160, and the back pressure machine 160 can be driven to operate by the steam discharged from the steam pipe outlet 1336. Of course, in other embodiments of the present application, steam pipe outlet 1336 may be connected to a municipal heating network, and heating may be performed using steam discharged from steam pipe outlet 1336.
Referring to fig. 4, in an embodiment of the present application, first phase change energy storage element 1311 may include a first energy storage element housing 13111 and a first vapor conduit 13112. First steam pipe 13112 may be connected at one end to first inlet 1311a and at the other end to first outlet 1311 b. First energy storage element housing 13111 has a first interior cavity with first vapor conduit 13112 disposed therein. A first accommodating space is arranged between the outer wall of the first steam pipe 13112 and the first inner cavity, and the first phase-change energy storage medium may be arranged in the first accommodating space.
Similarly, in embodiments of the present application, the second phase change energy storage element 1312 may include a second energy storage element housing and a second steam conduit. The second steam pipe may be connected at one end to the second inlet 1312a and at the other end to the second outlet 1312 b. The second energy storage element shell is provided with a second inner cavity, and the second steam pipeline can be arranged in the second inner cavity. A second accommodating space is arranged between the outer wall of the second steam pipeline and the second inner cavity, and the second phase-change energy storage medium can be arranged in the second accommodating space.
Similarly, in embodiments of the present application, the third phase change energy storage element 1313 may include a third energy storage element housing and a third steam conduit. The third steam pipe has one end connected to the third inlet 1313a and the other end connected to the third outlet 1313 b. The third energy storage element housing has a third interior cavity, and a third steam line can be disposed in the third interior cavity. A third accommodating space is arranged between the outer wall of the third steam pipeline and the third inner cavity, and a third phase-change energy storage medium can be arranged in the third accommodating space.
Referring to fig. 4, in an embodiment of the present application, the number of first steam pipes 13112 may be plural. Illustratively, the number of first steam pipes 13112 may be 16. Of course, in the embodiment of the present application, the number of first steam pipes 13112 may be other numbers, which are not listed here.
In embodiments of the present application, first steam conduit 13112 may be a bellows. Illustratively, first steam conduit 13112 may be an elliptical corrugated tube or a flat corrugated tube. Therefore, the conveying resistance of the steam in the first steam pipeline 13112 can be effectively reduced, the heat exchange area can be increased, and the heat exchange efficiency can be improved.
Similarly, in the embodiments of the present application, the number of the second steam pipes and the third steam pipes may each be plural. The second steam line and the third steam line may each be a bellows.
In embodiments of the present application, the first energy storage element housing 13111 may include a first outer shell, a first inner shell, and a first thermal insulation layer. The first outer shell can be sleeved outside the first inner shell, and the first heat-insulating layer can be clamped between the first outer shell and the first inner shell. In this way, the thermal insulation performance of the first phase change energy storage element 1311 can be improved.
Similarly, in embodiments of the present application, the second energy storage element housing may include a second outer shell, a second inner shell, and a second layer of insulation. The second outer shell can be sleeved outside the second inner shell, and the second heat-insulating layer can be clamped between the second outer shell and the second inner shell;
similarly, in embodiments of the present application, the third energy storage element housing may include a third outer shell, a third inner shell, and a third layer of insulation. The third outer shell can be sleeved outside the third inner shell, and the third heat-insulating layer can be clamped between the third outer shell and the third inner shell.
In this way, in the embodiment of the present application, the steam discharged from the steam outlet 120d may be selectively introduced into the first phase change energy storage element 1311, the second phase change energy storage element 1312, or the third phase change energy storage element 1313. The steam discharged from the steam outlet 120d may be maintained within a predetermined temperature range after exchanging heat with the first phase change energy storage element 1311, the second phase change energy storage element 1312, or the third phase change energy storage element 1313. Thus, the temperature of the steam output by the thermodynamic system 100 can be made stable. In addition, the thermodynamic system 100 provided by the embodiment of the present application has the capability of outputting at least three types of steam with different temperatures, so that the requirements of the steam consumption device on different steam temperatures can be better met.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the embodiments of the application, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A thermodynamic system, comprising: a boiler (110), a heat exchanger (120) and a temperature regulator (130);
the boiler (110) is provided with a smoke discharge port (111) and a steam discharge port (112), the heat exchanger (120) is provided with a smoke inlet (120a), a smoke outlet (120b), a steam inlet (120c) and a steam outlet (120d),
the temperature regulator (130) comprises a first phase change energy storage element (1311), a second phase change energy storage element (1312), a third phase change energy storage element (1313), a first switch valve (1321), a second switch valve (1322), a third switch valve (1323), a fourth switch valve (1324), a fifth switch valve (1325), a sixth switch valve (1326) and a steam delivery pipe (133);
the first phase change energy storage element (1311) is provided with a first phase change energy storage medium, the phase change temperature of the first phase change energy storage medium is a first temperature, the second phase change energy storage element (1312) is provided with a second phase change energy storage medium, the phase change temperature of the second phase change energy storage medium is a second temperature, the third phase change energy storage element (1313) is provided with a third phase change energy storage medium, the phase change temperature of the third phase change energy storage medium is a third temperature, wherein the first temperature, the second temperature and the third temperature are sequentially reduced,
the first switch valve (1321), the third switch valve (1323) and the fifth switch valve (1325) are sequentially arranged on the steam delivery pipe (133), one side, close to the first switch valve (1321), of the steam delivery pipe (133) is provided with a first connecting part (1331), a second connecting part (1332) is arranged at a position, between the first switch valve (1321) and the third switch valve (1323), of the steam delivery pipe (133), a third connecting part (1333) is arranged at a position, between the third switch valve (1323) and the fifth switch valve (1325), of the steam delivery pipe (133), and a fourth connecting part (1334) is arranged at one side, close to the fifth switch valve (1325), of the steam delivery pipe (133),
a steam pipe inlet (1335) is formed at one end of the steam conveying pipe (133) close to the first switch valve (1321), and a steam pipe outlet (1336) is formed at one end of the steam conveying pipe (133) close to the fifth switch valve (1325);
the flue gas discharge port (111) is connected to the flue gas inlet (120a), the steam discharge port (112) is connected to the steam inlet (120c), the steam outlet (120d) is connected to the steam pipe inlet (1335), the first inlet (1311a) of the first phase change energy storage element (1311) is connected to the first connection portion (1331) through the second switching valve (1322), the first outlet (1311b) of the first phase change energy storage element (1311) is connected to the second connection portion (1332), the second inlet (1312a) of the second phase change energy storage element (1312) is connected to the second connection portion (1332) through the fourth switching valve (1324), the second outlet (b) of the second phase change energy storage element (1312) is connected to the third connection portion (1312 3), the third inlet (1313a) of the third phase change energy storage element (1313) is connected to the third connection portion (1333) through the sixth switching valve (1326), the third outlet (1313b) of the third phase change energy storage element (1313) is connected to the fourth connection (1334).
2. The thermodynamic system according to claim 1, further comprising a denitration device (140), wherein the denitration device (140) comprises a denitration reducing agent storage tank (141), a denitration reducing agent diluter (142) and an atomizing injector (143), the denitration reducing agent storage tank (141) is connected with the denitration reducing agent diluter (142), the denitration reducing agent diluter (142) is connected with the atomizing injector (143), and the atomizing injector (143) is disposed in the boiler (110).
3. A thermodynamic system according to claim 1, wherein the heat exchanger (120) comprises a heat exchanger housing (121) and a coil (122), the heat exchanger housing (121) is provided with a first opening (121a), a second opening (121b), a third opening (121c) and a fourth opening (121d), the flue gas inlet (120a) is provided at the first opening (121a), the flue gas outlet (120b) is provided at the second opening (121b), the coil (122) comprises a coil (1221), a first extension (1221) and a second extension (1223), the coil (1221) is provided within the heat exchanger housing (121), one end of the coil (1221) is connected with the first extension (1222), the other end of the coil (1221) is connected with the second extension (1223), the first extension (1222) protrudes out of the heat exchanger housing (121) through the third opening (121c), the second extension portion (1223) protrudes out of the heat exchanger housing (121) through the fourth opening (121d), the steam inlet (120c) is provided at an end of the first extension portion (1222) away from the coiled portion (1221), and the steam outlet (120d) is provided at an end of the second extension portion (1223) away from the coiled portion (1221).
4. A thermodynamic system according to claim 3, wherein the heat exchanger (120) further comprises a flue gas buffer plate (123), the flue gas buffer plate (123) being arranged within the heat exchanger housing (121).
5. A thermodynamic system according to claim 3, wherein the heat exchanger (120) further comprises a support column (124), the support column (124) is fixedly arranged in the heat exchanger housing (121), and the winding pipe (122) is connected with the support column (124).
6. The thermodynamic system according to claim 1, further comprising a desulfurization tower (150), the flue gas outlet (120b) being connected to the desulfurization tower (150).
7. The thermodynamic system according to claim 1, further comprising a back press (160), the steam pipe outlet (1336) being connected to the back press (160).
8. The thermodynamic system according to claim 1, wherein the first phase change energy storage element (1311) comprises a first energy storage element housing (13111) and a first steam pipe (13112), the first steam pipe (13112) is connected to the first inlet (1311a) at one end and the first outlet (1311b) at the other end, the first energy storage element housing (13111) has a first inner cavity, the first steam pipe (13112) is disposed in the first inner cavity, a first accommodating space is disposed between an outer wall of the first steam pipe (13112) and the first inner cavity, and the first phase change energy storage medium is disposed in the first accommodating space;
the second phase change energy storage element (1312) comprises a second energy storage element shell and a second steam pipeline, one end of the second steam pipeline is connected with the second inlet (1312a), the other end of the second steam pipeline is connected with the second outlet (1312b), the second energy storage element shell is provided with a second inner cavity, the second steam pipeline is arranged in the second inner cavity, a second accommodating space is arranged between the outer wall of the second steam pipeline and the second inner cavity, and the second phase change energy storage medium is arranged in the second accommodating space;
the third phase-change energy storage element (1313) comprises a third energy storage element shell and a third steam pipeline, one end of the third steam pipeline is connected with the third inlet (1313a), the other end of the third steam pipeline is connected with the third outlet (1313b), the third energy storage element shell is provided with a third inner cavity, the third steam pipeline is arranged in the third inner cavity, a third accommodating space is arranged between the outer wall of the third steam pipeline and the third inner cavity, and a third phase-change energy storage medium is arranged in the third accommodating space.
9. The thermodynamic system according to claim 8, wherein the number of the first, second and third vapor pipes (13112) are each multiple, and the first, second and third vapor pipes are each bellows.
10. The thermodynamic system according to claim 8, wherein the first energy storage element casing (13111) comprises a first outer casing, a first inner casing, and a first thermal insulation layer, the first outer casing is sleeved outside the first inner casing, and the first thermal insulation layer is sandwiched between the first outer casing and the first inner casing;
the second energy storage element shell comprises a second outer shell, a second inner shell and a second heat insulation layer, the second outer shell is sleeved outside the second inner shell, and the second heat insulation layer is clamped between the second outer shell and the second inner shell;
the third energy storage element shell comprises a third outer shell, a third inner shell and a third heat preservation layer, the third outer shell is sleeved outside the third inner shell, and the third heat preservation layer is clamped between the third outer shell and the third inner shell.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411439A (en) * | 2013-08-29 | 2013-11-27 | 广东石油化工学院 | Electric furnace waste heat recovery stabilization system |
| CN203517749U (en) * | 2013-10-10 | 2014-04-02 | 中兴能源（唐山）节能有限公司 | Boiler exhaust fume waste heat utilizing system |
| CN103791744A (en) * | 2014-01-21 | 2014-05-14 | 郑州四维淀粉技术开发有限公司 | Double-phase-change latent heat exchanger |
| CN109141042A (en) * | 2018-07-01 | 2019-01-04 | 广东省能源研究会 | Temperature wave ejector half electric heating fusion apparatus flue gas step recycling system |
| CN209197545U (en) * | 2018-10-22 | 2019-08-02 | 沈阳世杰电器有限公司 | Solid heat reservoir with superheated steam heat-exchanger rig |
| CN110529870A (en) * | 2019-09-23 | 2019-12-03 | 高黎明 | A kind of recycling of cigarette air supply heat pump waste heat and flue gas take off the white integrated heating system heated with paddy electricity phase-change accumulation energy step |
| CN211372463U (en) * | 2019-09-23 | 2020-08-28 | 高黎明 | Integrated heat supply system of flue gas source heat pump waste heat recovery and valley electricity phase change energy storage |
-
2021
- 2021-12-07 CN CN202111487186.4A patent/CN114183767B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411439A (en) * | 2013-08-29 | 2013-11-27 | 广东石油化工学院 | Electric furnace waste heat recovery stabilization system |
| CN203517749U (en) * | 2013-10-10 | 2014-04-02 | 中兴能源（唐山）节能有限公司 | Boiler exhaust fume waste heat utilizing system |
| CN103791744A (en) * | 2014-01-21 | 2014-05-14 | 郑州四维淀粉技术开发有限公司 | Double-phase-change latent heat exchanger |
| CN109141042A (en) * | 2018-07-01 | 2019-01-04 | 广东省能源研究会 | Temperature wave ejector half electric heating fusion apparatus flue gas step recycling system |
| CN209197545U (en) * | 2018-10-22 | 2019-08-02 | 沈阳世杰电器有限公司 | Solid heat reservoir with superheated steam heat-exchanger rig |
| CN110529870A (en) * | 2019-09-23 | 2019-12-03 | 高黎明 | A kind of recycling of cigarette air supply heat pump waste heat and flue gas take off the white integrated heating system heated with paddy electricity phase-change accumulation energy step |
| CN211372463U (en) * | 2019-09-23 | 2020-08-28 | 高黎明 | Integrated heat supply system of flue gas source heat pump waste heat recovery and valley electricity phase change energy storage |
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