CN114001348B - Thermodynamic system - Google Patents
Thermodynamic system Download PDFInfo
- Publication number
- CN114001348B CN114001348B CN202111405825.8A CN202111405825A CN114001348B CN 114001348 B CN114001348 B CN 114001348B CN 202111405825 A CN202111405825 A CN 202111405825A CN 114001348 B CN114001348 B CN 114001348B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- low
- thermodynamic system
- heater
- water outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- 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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The embodiment of the application provides a thermodynamic system, which relates to the technical field of thermal power generation and aims to solve the problem that the energy-saving effect of a low-temperature economizer cannot be normally exerted. The thermodynamic system comprises: the system comprises a shaft seal heater, a first low-pressure heater, a heat supply network heater, a low-temperature economizer, a second low-pressure heater, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline; the shaft seal heater is connected with the first low-pressure heater, the shaft seal heater, the first low-pressure heater and the heat supply network heater are sequentially connected with a fourth pipeline through a first pipeline, a second pipeline and a third pipeline, the fourth pipeline is connected with the low-temperature economizer, and the low-temperature economizer is connected with the second low-pressure heater; when the thermodynamic system is in a first working condition, the first pipeline, the second pipeline and the fourth pipeline are in a conducting state, and the third pipeline is in a cut-off state; when the thermodynamic system is in the second working condition, the first pipeline, the third pipeline and the fourth pipeline are in a conducting state, and the second pipeline is in a cut-off state.
Description
Technical Field
The application relates to the technical field of thermal power generation, in particular to a thermodynamic system.
Background
A low-temperature economizer is typically provided in the thermodynamic system. The low-temperature economizer is energy-saving equipment for absorbing heat of flue gas by utilizing condensed water. Under some working conditions, the flow rate of the condensed water supplied to the low-temperature economizer is smaller than the minimum flow rate requirement of the low-temperature economizer, so that the low-temperature economizer cannot work normally, and the energy-saving effect of the low-temperature economizer cannot be normally exerted.
Disclosure of Invention
The embodiment of the application provides a thermodynamic system to solve the problem that the energy-saving effect of a low-temperature economizer cannot be normally exerted.
The thermodynamic system provided by the embodiment of the application comprises: the system comprises a shaft seal heater, a first low-pressure heater, a heat supply network heater, a low-temperature economizer, a second low-pressure heater, a first pipeline, a second pipeline, a third pipeline and a fourth pipeline;
the shaft seal heater comprises a first water outlet, the first low-pressure heater comprises a first water inlet and a second water outlet, the heat supply network heater comprises a third water outlet, the third water outlet is used for outputting condensed water, the low-temperature economizer comprises a second water inlet and a fourth water outlet, and the second low-pressure heater comprises a third water inlet;
the first water outlet is connected with the fourth pipeline through the first pipeline, the first water outlet is also connected with the first water inlet, the second water outlet is connected with the fourth pipeline through the second pipeline, the third water outlet is connected with the fourth pipeline through the third pipeline, the fourth pipeline is connected with the second water inlet, and the fourth water outlet is connected with the third water inlet;
under the condition that the thermodynamic system is in a first working condition, the first pipeline, the second pipeline and the fourth pipeline are all in a conducting state, and the third pipeline is in a cut-off state;
and under the condition that the thermodynamic system is in a second working condition, the first pipeline, the third pipeline and the fourth pipeline are all in a conducting state, and the second pipeline is in a cut-off state.
Optionally, the thermodynamic system further comprises a boiler, the boiler comprises a boiler flue gas outlet, the low-temperature economizer comprises an economizer flue gas inlet and an economizer flue gas outlet, and the boiler flue gas outlet is connected with the economizer flue gas inlet.
Optionally, the thermodynamic system further comprises a soot blower connected with the low-temperature economizer.
Optionally, the thermodynamic system further comprises an air preheater connected to the soot blower for supplying steam to the soot blower.
Optionally, the thermodynamic system further comprises: the first temperature detection device and the first regulating valve are arranged on the first pipeline, and the first temperature detection device is connected with the first pipeline.
Optionally, the thermodynamic system further comprises: the second temperature detection device and the second regulating valve are arranged on the second pipeline, and the second temperature detection device is connected with the second pipeline.
Optionally, the thermodynamic system further comprises: the third temperature detection device and the third regulating valve are arranged on the third pipeline, and the third temperature detection device is connected with the third pipeline.
Optionally, the thermodynamic system further comprises a deaerator, and the third water outlet is connected with the deaerator.
Optionally, the thermodynamic system further comprises a fifth pipeline, the fourth water outlet is connected with the third water inlet through the fifth pipeline, and the fifth pipeline is provided with a clean water sampling port and a flushing water drain port.
Optionally, the first working condition is a summer working condition, and the second working condition is a winter working condition.
The above at least one technical scheme adopted by the embodiment of the application can achieve the following beneficial effects:
in the embodiment of the application, under the condition that the thermodynamic system is in the first working condition, if the flow rate of the condensate water supplied to the low-temperature economizer meets the minimum flow rate requirement of the low-temperature economizer, the condensate water of the shaft seal heater can be conveyed to the first low-pressure heater, so that the condensate water of the first low-pressure heater and the shaft seal heater can be mixed in the fourth pipeline and then conveyed to the low-temperature economizer, and the low-temperature economizer can work normally. In case the thermodynamic system is in the second working condition, the condensate water may be taken from the heat supply network heater if the flow rate of the condensate water supplied to the low-temperature economizer is smaller than the minimum flow rate requirement of the low-temperature economizer. Therefore, the condensation water of the shaft seal heater and the condensation water of the heat supply network heater are mixed in the fourth pipeline and then are conveyed to the low-temperature economizer, and the low-temperature economizer can work normally. Therefore, the low-temperature economizer can be in a normal working state under the first working condition and the second working condition, and the problem that the energy-saving effect of the low-temperature economizer cannot be normally exerted can be solved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained according to the drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic diagram of a thermodynamic system according to an embodiment of the present application.
Reference numerals illustrate: 100-thermodynamic system; 110-shaft seal heater; 1101-first water outlet; 120-a first low pressure heater; 1201-a first water inlet; 1202-a second water outlet; 130-a heating network heater; 1301-a third water outlet; 140-low-temperature economizer; 1401-a second water inlet; 1402-fourth water outlet; 1403-economizer flue gas inlet; 1404-economizer flue gas outlet; 150-a second low pressure heater; 1501-a third water inlet; 1601-first pipe; 1602-a second conduit; 1603-third conduit; 1604-a fourth conduit; 1605-fifth line; 16051—clean water sampling port; 16052-flushing the drain; 1701-boiler; 17011-boiler flue gas outlet; 1702-a sootblower; 1703-air preheater; 1704-deaerator; 1801-a first temperature detection device; 1802-first regulator valve; 1803-a second temperature detection device; 1804-a second regulating valve; 1805-a third temperature detecting means; 1806-third regulating valve.
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 clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
Furthermore, although terms used in the present application are selected from publicly known and commonly used terms, some terms mentioned in the present specification 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.
Furthermore, it is required that the present application is understood, not simply by the actual terms used but by the meaning of each term lying within.
The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.
The embodiment of the application provides a thermodynamic system. Referring to fig. 1, in an embodiment of the application, a thermodynamic system 100 may comprise: shaft seal heater 110, first low pressure heater 120, heat supply network heater 130, low temperature economizer 140, second low pressure heater 150, first conduit 1601, second conduit 1602, third conduit 1603, and fourth conduit 1604.
The shaft seal heater 110 may be connected to the first low pressure heater 120, the shaft seal heater 110 may be connected to the fourth pipe 1604 through the first pipe 1601, the first low pressure heater 120 may be connected to the fourth pipe 1604 through the second pipe 1602, and the heat supply network heater 130 may be connected to the fourth pipe 1604 through the third pipe 1603. The fourth pipe 1604 may be connected to the low-temperature economizer 140, and the low-temperature economizer 140 may be connected to the second low-pressure heater 150.
Specifically, in an embodiment of the present application, the shaft seal heater 110 may include a first water outlet 1101. The first low pressure heater 120 may include a first water inlet 1201 and a second water outlet 1202. The heat grid heater 130 may include a third water outlet 1301. The low-temperature economizer 140 may include a second water inlet 1401 and a fourth water outlet 1402. The second low pressure heater 150 may include a third water inlet 1501.
The first water outlet 1101 may be connected to the fourth pipe 1604 by a first pipe 1601, and the first water outlet 1101 may also be connected to the first water inlet 1201. The second water outlet 1202 may be connected to a fourth pipe 1604 by a second pipe 1602. The third water outlet 1301 may be connected to the fourth pipe 1604 through a third pipe 1603. A fourth pipe 1604 may be connected to the second water inlet 1401, and a fourth water outlet 1402 may be connected to the third water inlet 1501.
With thermodynamic system 100 in the first operating condition, first, second, and fourth conduits 1601, 1602, 1604 may each be in an on state, and third conduit 1603 may be in an off state; with thermodynamic system 100 in the second operating condition, first, third, and fourth conduits 1601, 1603, 1604 may each be in an on state and second conduit 1602 may be in an off state.
In this way, in the embodiment of the present application, if the flow rate of the condensate water supplied to the low-temperature economizer satisfies the minimum flow rate requirement of the low-temperature economizer with the thermodynamic system 100 in the first operating condition, the condensate water of the shaft seal heater 110 may be transferred to the first low-pressure heater 120, the condensate water of the first low-pressure heater 120 and the shaft seal heater 110 may be mixed in the fourth pipe 1604 and then transferred to the low-temperature economizer 140, and the low-temperature economizer 140 may be enabled to operate normally. With the thermodynamic system 100 in the second operating condition, if the flow rate of the condensate water supplied to the low-temperature economizer is less than the minimum flow rate requirement of the low-temperature economizer, the condensate water may be taken from the heat grid heater 130. In this way, the condensed water of the shaft seal heater 110 and the condensed water of the heat supply network heater 130 can be mixed in the fourth pipe 1604 and then transferred to the low-temperature economizer 140, and the low-temperature economizer 140 can be made to work normally. Therefore, the low-temperature economizer 140 can be in a normal working state under the first working condition and the second working condition, and the problem that the energy-saving effect of the low-temperature economizer cannot be normally exerted can be solved.
It should be noted that, in the embodiment of the present application, the first operating condition may be a summer operating condition, or may be a similar operating condition to a summer operating condition. The second operating condition may be a winter operating condition, or may be a similar operating condition to a winter operating condition. It should be further noted that, in the case where the thermodynamic system 100 is in a winter condition, in general, the thermodynamic system needs to supply heat, so that the flow rate of the condensate water supplied to the low-temperature economizer is smaller than the minimum flow rate requirement of the low-temperature economizer. Thus, condensate may be drawn from the grid heater 130 when the thermodynamic system 100 is in winter conditions. In this way, the condensed water of the shaft seal heater 110 and the condensed water of the heat supply network heater 130 can be mixed in the fourth pipe 1604 and then transferred to the low-temperature economizer 140, and the low-temperature economizer 140 can be made to work normally.
It should be noted that the low-temperature economizer is also called a boiler low-pressure economizer. The low pressure heater may be generally referred to simply as a low-pressure heater.
In an embodiment of the application, the thermodynamic system 100 may further comprise a boiler 1701, the boiler 1701 may comprise a boiler flue gas outlet 17011, the low-temperature economizer 140 may comprise an economizer flue gas inlet 1403 and an economizer flue gas outlet 1404, the boiler flue gas outlet 17011 being connected to the economizer flue gas inlet 1403. In this way, the low-temperature economizer 140 can be utilized to extract waste heat energy from the flue gas discharged from the boiler flue gas outlet 17011.
In an embodiment of the application, the thermal system 100 may also include a sootblower 1702, and the sootblower 1702 may be coupled to the low-temperature economizer 140. In this way, the soot blower 1702 may be utilized to clean the low-level economizer 140 of soot deposits.
In an embodiment of the application, the thermal system 100 may further include an air preheater 1703, the air preheater 1703 may be coupled to the sootblowers 1702, and the air preheater 1703 may be used to supply steam to the sootblowers 1702. In this way, the steam extracted from the air preheater 1703 may be delivered to the sootblowers 1702 by extracting the steam from the air preheater 1703, such that the low-temperature economizer 140 may be purged with the sootblowers 1702, thereby purging the low-temperature economizer 140 with the sootblowers 1702.
It should be noted that, in the embodiment of the present application, the air preheater 1703 may also be connected to a hydrophobic collection device. When the steam output from the air preheater 1703 becomes hydrophobic, the hydrophobic may be delivered to a hydrophobic collection means.
In an embodiment of the present application, the thermodynamic system 100 may further include: a first temperature detection device 1801 and a first regulator valve 1802. The first regulator valve 1802 may be disposed in a first conduit 1601 and the first temperature sensing device 1801 may be coupled to the first conduit 1601. In this way, the temperature parameter of the condensed water in the first duct 1601 may be acquired by the first temperature detecting device 1801, and the first adjusting valve 1802 may be controlled based on the acquired temperature parameter of the condensed water in the first duct 1601. So that the flow rate of the condensed water of the first duct 1601 can be adjusted by adjusting the first adjusting valve 1802.
In an embodiment of the present application, the thermodynamic system 100 may further include: a second temperature sensing device 1803 and a second regulator valve 1804. The second adjustment valve 1804 may be disposed in the second pipe 1602, and the second temperature detecting device 1803 may be connected to the second pipe 1602. In this way, the temperature parameter of the condensed water in the second pipe 1602 can be acquired by the second temperature detecting means 1803, and the second regulating valve 1804 can be controlled based on the acquired temperature parameter of the condensed water in the second pipe 1602. So that the flow rate of the condensed water of the second pipe 1602 can be adjusted by adjusting the second adjusting valve 1804.
In an embodiment of the present application, the thermodynamic system 100 may further include: a third temperature detection device 1805 and a third regulator valve 1806. A third regulating valve 1806 may be disposed in the third conduit 1603, and a third temperature detection device 1805 may be coupled to the third conduit 1603. In this way, the temperature parameter of the condensed water in the third pipe 1603 may be acquired by the third temperature detecting device 1805, and the third regulating valve 1806 may be controlled based on the acquired temperature parameter of the condensed water in the third pipe 1603. So that the flow rate of the condensed water of the third pipe 1603 can be adjusted by adjusting the third adjusting valve 1806.
In an embodiment of the present application, the thermal system 100 may also include a deaerator 1704. The third water outlet 1301 may be connected to a deaerator 1704. In this way, oxygen in the condensed water output in the grid heater 130 may be removed using the deaerator 1704. In an embodiment of the present application, deoxygenated water in deoxygenator 1704 may be delivered to boiler 1701, which may enable the recycling of condensate water output in heat grid heater 130.
In an embodiment of the present application, the thermodynamic system 100 may also include a hydrophobic pump. The heating network heater 130 may be connected to the fourth pipe 1604 via a drainage pump. Where the thermal system 100 also includes a deaerator 1704, the heat network heater 130 may be coupled to the deaerator 1704 via a hydrophobic pump.
In an embodiment of the present application, the thermodynamic system 100 may further comprise a fifth pipeline 1605. Fourth water outlet 1402 may be connected to third water inlet 1501 via fifth conduit 1605. The fifth line 1605 may be provided with a clean water sampling port 16051 and a flush drain port 16052. In this way, the fifth line 1605 may be sampled through the clean water sampling port 16051, and the fifth line 1605 may be emptied by flushing the drain port 16052.
In an embodiment of the present application, the first low pressure heater 120 may include a first low pressure heater and a second low pressure heater. The first low-pressure heater and the second low-pressure heater can be used in parallel. In an embodiment of the present application, the low-temperature economizer 140 may include a first low-temperature economizer and a second low-temperature economizer, which may be used in parallel.
In embodiments of the present application where the thermodynamic system 100 may be conveniently controlled, the first, second, third and fourth conduits 1601, 1602, 1603 and 1604 may also be provided with manual and electric on-off valves. The first, second, third, and fourth conduits 1601, 1602, 1603, 1604 may also be provided with flow detection devices.
In an embodiment of the application, the first water outlet 1101 comprised by the shaft seal heater 110 may be connected to the third water inlet 1501 comprised by the second low pressure heater 150 by means of a control valve. The control valve may include a manual switching valve and an electric switching valve.
Illustratively, in an embodiment of the present application, the temperature of the condensate output by the first water outlet 1101 of the shaft seal heater 110 may be 34.6 degrees celsius and the flow may be 702 tons/hour when the thermodynamic system 100 is in summer conditions; the temperature of the condensed water output from the second water outlet 1202 of the first low-pressure heater 120 may be 104.4 degrees celsius, and the flow rate may be 240 tons/hour; the temperature of the mixed water in the fourth pipe 1604 may be 70 degrees celsius and the flow rate may be 475 tons/hour, so that the flow rate of the condensed water supplied to the low-temperature economizer 140 satisfies the minimum flow rate requirement that the low-temperature economizer 140 can operate normally, which may enable the low-temperature economizer 140 to operate normally.
Illustratively, in an embodiment of the present application, the temperature of the condensate output by the first water outlet 1101 of the shaft seal heater 110 may be 34.6 degrees celsius and the flow may be 702 tons/hour when the thermodynamic system 100 is in winter conditions; the temperature of the condensed water output from the third water outlet 1301 of the heat supply network heater 130 may be 104.28 degrees celsius, and the flow rate may be 210 tons/hour; the temperature of the mixed water in the fourth pipe 1604 may be 70 degrees celsius and the flow rate may be 398 tons/hour, so that the flow rate of the condensed water supplied to the low-temperature economizer 140 satisfies the minimum flow rate requirement that the low-temperature economizer 140 can operate normally, which may enable the low-temperature economizer 140 to operate normally.
In this way, in the embodiment of the present application, if the flow rate of the condensate water supplied to the low-temperature economizer satisfies the minimum flow rate requirement of the low-temperature economizer with the thermodynamic system 100 in the first operating condition, the condensate water of the shaft seal heater 110 may be transferred to the first low-pressure heater 120, the condensate water of the first low-pressure heater 120 and the shaft seal heater 110 may be mixed in the fourth pipe 1604 and then transferred to the low-temperature economizer 140, and the low-temperature economizer 140 may be enabled to operate normally. With the thermodynamic system 100 in the second operating condition, if the flow rate of the condensate water supplied to the low-temperature economizer is less than the minimum flow rate requirement of the low-temperature economizer, the condensate water may be taken from the heat grid heater 130. In this way, the condensed water of the shaft seal heater 110 and the condensed water of the heat supply network heater 130 can be mixed in the fourth pipe 1604 and then transferred to the low-temperature economizer 140, and the low-temperature economizer 140 can be made to work normally. Therefore, the low-temperature economizer 140 can be in a normal working state under the first working condition and the second working condition, and the problem that the energy-saving effect of the low-temperature economizer cannot be normally exerted can be solved.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein 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 shaft seal heater (110), a first low pressure heater (120), a heat supply network heater (130), a low-temperature economizer (140), a second low pressure heater (150), a first pipe (1601), a second pipe (1602), a third pipe (1603), and a fourth pipe (1604);
the shaft seal heater (110) comprises a first water outlet (1101), the first low-pressure heater (120) comprises a first water inlet (1201) and a second water outlet (1202), the heat supply network heater (130) comprises a third water outlet (1301), the third water outlet (1301) is used for outputting condensed water, the low-temperature economizer (140) comprises a second water inlet (1401) and a fourth water outlet (1402), and the second low-pressure heater (150) comprises a third water inlet (1501);
the first water outlet (1101) is connected with the fourth pipeline (1604) through the first pipeline (1601), the first water outlet (1101) is also connected with the first water inlet (1201), the second water outlet (1202) is connected with the fourth pipeline (1604) through the second pipeline (1602), the third water outlet (1301) is connected with the fourth pipeline (1604) through the third pipeline (1603), the fourth pipeline (1604) is connected with the second water inlet (1401), and the fourth water outlet (1402) is connected with the third water inlet (1501);
when the thermodynamic system is in a first working condition, the first pipeline (1601), the second pipeline (1602) and the fourth pipeline (1604) are all in an on state, and the third pipeline (1603) is in an off state;
when the thermodynamic system is in a second working condition, the first pipeline (1601), the third pipeline (1603) and the fourth pipeline (1604) are all in an on state, and the second pipeline (1602) is in an off state.
2. The thermodynamic system of claim 1, further comprising a boiler (1701), the boiler (1701) comprising a boiler flue gas outlet (17011), the low-temperature economizer (140) comprising an economizer flue gas inlet (1403) and an economizer flue gas outlet (1404), the boiler flue gas outlet (17011) being connected with the economizer flue gas inlet (1403).
3. The thermodynamic system of claim 1, further comprising a sootblower (1702), the sootblower (1702) being connected with the low-temperature economizer (140).
4. A thermodynamic system as claimed in claim 3, characterized in that the thermodynamic system further comprises an air preheater (1703), the air preheater (1703) being connected to the sootblowers (1702), the air preheater (1703) being adapted to supply steam to the sootblowers (1702).
5. A thermodynamic system as claimed in claim 1, wherein the thermodynamic system further comprises: a first temperature detection device (1801) and a first regulating valve (1802), the first regulating valve (1802) is arranged in the first pipeline (1601), and the first temperature detection device (1801) is connected with the first pipeline (1601).
6. A thermodynamic system as claimed in claim 1, wherein the thermodynamic system further comprises: a second temperature detection device (1803) and a second regulating valve (1804), wherein the second regulating valve (1804) is arranged on the second pipeline (1602), and the second temperature detection device (1803) is connected with the second pipeline (1602).
7. A thermodynamic system as claimed in claim 1, wherein the thermodynamic system further comprises: and a third temperature detection device (1805) and a third regulating valve (1806), wherein the third regulating valve (1806) is arranged on the third pipeline (1603), and the third temperature detection device (1805) is connected with the third pipeline (1603).
8. The thermodynamic system of claim 1, further comprising a deaerator (1704), the third water outlet (1301) being connected to the deaerator (1704).
9. A thermodynamic system according to claim 1, characterized in that the thermodynamic system further comprises a fifth pipe (1605), through which fifth pipe (1605) the fourth water outlet (1402) is connected to the third water inlet (1501), the fifth pipe (1605) being provided with a clean water sampling port (16051) and a flushing drain port (16052).
10. A thermodynamic system as claimed in claim 1, wherein the first condition is a summer condition and the second condition is a winter condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405825.8A CN114001348B (en) | 2021-11-24 | 2021-11-24 | Thermodynamic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405825.8A CN114001348B (en) | 2021-11-24 | 2021-11-24 | Thermodynamic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114001348A CN114001348A (en) | 2022-02-01 |
| CN114001348B true CN114001348B (en) | 2023-08-25 |
Family
ID=79930259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111405825.8A Active CN114001348B (en) | 2021-11-24 | 2021-11-24 | Thermodynamic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114001348B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU909413A1 (en) * | 1980-06-23 | 1982-02-28 | Научно-Исследовательский Институт Санитарной Техники И Оборудования Зданий И Сооружений Мпсм Ссср | Boiler unit |
| JPH0933005A (en) * | 1995-07-20 | 1997-02-07 | Toshiba Corp | Water feeding device for waste heat recovery boiler |
| CN104566399A (en) * | 2014-12-18 | 2015-04-29 | 中节能（常州）城市节能研究院有限公司 | Novel urban waste comprehensive utilization energy supply system |
| CN107101192A (en) * | 2017-05-02 | 2017-08-29 | 国网山东省电力公司电力科学研究院 | The low-level (stack-gas) economizer system and thermal power plant unit of a kind of thermal power plant unit |
| RU2016134576A3 (en) * | 2016-08-23 | 2018-03-01 | ||
| CN208687705U (en) * | 2018-08-01 | 2019-04-02 | 西安西热节能技术有限公司 | A kind of system that excision low pressure (LP) cylinder is coupled into automotive row with low-pressure coal saver |
| JP2019124436A (en) * | 2018-01-19 | 2019-07-25 | 三菱日立パワーシステムズ株式会社 | Water feed method of exhaust heat recovery boiler and exhaust heat recovery boiler |
| CN110836365A (en) * | 2019-12-11 | 2020-02-25 | 中国电力工程顾问集团西北电力设计院有限公司 | Waste heat utilization system and method for circulating fluidized bed boiler of thermal power plant |
| CN211116157U (en) * | 2019-12-13 | 2020-07-28 | 华能国际电力股份有限公司 | Low-pressure economizer and low-pressure cylinder zero-output heat supply coupling system |
| CN111878802A (en) * | 2020-08-27 | 2020-11-03 | 李广建 | Heat utilization system of slag cooler and low-temperature economizer of circulating fluidized bed heat supply unit |
| CN214745984U (en) * | 2021-05-27 | 2021-11-16 | 华能威海发电有限责任公司 | Heating system with secondary low-temperature economizer |
-
2021
- 2021-11-24 CN CN202111405825.8A patent/CN114001348B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU909413A1 (en) * | 1980-06-23 | 1982-02-28 | Научно-Исследовательский Институт Санитарной Техники И Оборудования Зданий И Сооружений Мпсм Ссср | Boiler unit |
| JPH0933005A (en) * | 1995-07-20 | 1997-02-07 | Toshiba Corp | Water feeding device for waste heat recovery boiler |
| CN104566399A (en) * | 2014-12-18 | 2015-04-29 | 中节能（常州）城市节能研究院有限公司 | Novel urban waste comprehensive utilization energy supply system |
| RU2016134576A3 (en) * | 2016-08-23 | 2018-03-01 | ||
| CN107101192A (en) * | 2017-05-02 | 2017-08-29 | 国网山东省电力公司电力科学研究院 | The low-level (stack-gas) economizer system and thermal power plant unit of a kind of thermal power plant unit |
| JP2019124436A (en) * | 2018-01-19 | 2019-07-25 | 三菱日立パワーシステムズ株式会社 | Water feed method of exhaust heat recovery boiler and exhaust heat recovery boiler |
| CN208687705U (en) * | 2018-08-01 | 2019-04-02 | 西安西热节能技术有限公司 | A kind of system that excision low pressure (LP) cylinder is coupled into automotive row with low-pressure coal saver |
| CN110836365A (en) * | 2019-12-11 | 2020-02-25 | 中国电力工程顾问集团西北电力设计院有限公司 | Waste heat utilization system and method for circulating fluidized bed boiler of thermal power plant |
| CN211116157U (en) * | 2019-12-13 | 2020-07-28 | 华能国际电力股份有限公司 | Low-pressure economizer and low-pressure cylinder zero-output heat supply coupling system |
| CN111878802A (en) * | 2020-08-27 | 2020-11-03 | 李广建 | Heat utilization system of slag cooler and low-temperature economizer of circulating fluidized bed heat supply unit |
| CN214745984U (en) * | 2021-05-27 | 2021-11-16 | 华能威海发电有限责任公司 | Heating system with secondary low-temperature economizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114001348A (en) | 2022-02-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7987675B2 (en) | Provision for rapid warming of steam piping of a power plant | |
| CN113404563B (en) | Low-pressure cylinder cutting heat supply unit low-heating and back-heating system | |
| CN205261619U (en) | A fan heater drainage system for overcritical and ultra supercritical unit | |
| CN209263108U (en) | A kind of heat supply network draining system | |
| CN114001348B (en) | Thermodynamic system | |
| CN204113354U (en) | A kind of gland seal system and thermodynamic system of steam tur | |
| CN109520001A (en) | A kind of heat supply network draining system | |
| CN113606646B (en) | Automatic control system and method for drainage recovery of heat supply network | |
| CN114877307A (en) | Double-pumping back pressure heat supply system capable of realizing high-parameter heat supply and working method thereof | |
| CN2932094Y (en) | Exhaust steam recovery device of power boiler deaerator | |
| CN211739243U (en) | Adjustable device for recycling waste heat of circulating cooling water of auxiliary engine of thermal power generating unit | |
| CN208779550U (en) | Heating system automatic sewage discharging device | |
| CN207819678U (en) | Automatic water replenishing system | |
| CN218565407U (en) | Tubular heat exchanger heat medium water waste heat heating condensate system | |
| CN113685891A (en) | Intelligent parallel group control heating system | |
| CN214581189U (en) | Waste heat utilization system of gas boiler | |
| CN216047715U (en) | Drainage regulation control system of air preheater in waste incineration industry | |
| CN215411835U (en) | Exhaust steam recovery energy-saving device of boiler deaerator | |
| CN220287421U (en) | Steam condensate recovery system | |
| CN113701142A (en) | Tubular heat exchanger heat medium water waste heat heating condensate system and control method | |
| CN212535792U (en) | Hydrophobic recovery unit of steam turbine | |
| CN215337098U (en) | Heating control device for condensed water pipe of peak heater | |
| CN109340893A (en) | A kind of new heating end control system of more residential areas | |
| CN219640238U (en) | Boiler condensate water recovery system | |
| CN108730956A (en) | A kind of air suspended type flash vessel steam discharge energy conservation and environmental protection processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |