CN113432112B - Method for controlling rear main steam temperature of boiler high-temperature superheater - Google Patents
Method for controlling rear main steam temperature of boiler high-temperature superheater Download PDFInfo
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- CN113432112B CN113432112B CN202110729228.4A CN202110729228A CN113432112B CN 113432112 B CN113432112 B CN 113432112B CN 202110729228 A CN202110729228 A CN 202110729228A CN 113432112 B CN113432112 B CN 113432112B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/12—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays
- F22G5/123—Water injection apparatus
- F22G5/126—Water injection apparatus in combination with steam-pressure reducing valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/20—Controlling superheat temperature by combined controlling procedures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Abstract
The invention relates to the technical field of temperature control, and discloses a method for controlling the temperature of rear main steam of a high-temperature superheater of a boiler, which comprises the following steps: s1, sequentially installing a low-temperature superheater, a medium-temperature superheater and a high-temperature superheater in fixed positions, and selecting a proper main controller as central equipment for regulating and controlling the temperature of the whole steam; s2, additionally arranging a first serpentine steam pipeline between the low-temperature superheater and the medium-temperature superheater, and additionally arranging a second serpentine steam pipeline between the medium-temperature superheater and the high-temperature superheater; and S3, respectively installing a first temperature measuring probe, a second temperature measuring probe, a first electromagnetic valve and a second electromagnetic valve at the inner sides of the two ends of the first snake-shaped steam pipeline and the second snake-shaped steam pipeline. The method for controlling the temperature of the main steam behind the high-temperature superheater of the boiler has the advantages that the cooling operation from the outside is realized, so that the steam cannot carry water to influence the subsequent production and use, the temperature is more accurately controlled, and the quality control of the steam temperature is effectively guaranteed.
Description
Technical Field
The invention relates to the technical field of temperature control, in particular to a method for controlling the temperature of rear main steam of a high-temperature superheater of a boiler.
Background
The superheater is a component for further heating steam from saturation temperature to superheat temperature in a boiler, and is also called a steam superheater, and the saturated steam temperature needs to be further improved by the superheater in the existing power plant, so that the energy conversion efficiency of the generator set is ensured.
In actual power generation, the temperature of the superheated steam needs to be regulated, the metal strength of the wall of the superheater tube can be reduced due to overhigh steam temperature so as to burn out the high-temperature section of the superheater, great potential safety hazards are caused, the energy conversion efficiency of a generator set can be reduced when the temperature of the superheated steam is low, and the energy waste is caused.
In patent application publication No. CN 105180136 a, a method for controlling main steam temperature of a boiler in a thermal power plant based on a fractional order PI dynamic matrix is provided, which is characterized by comprising the following steps: step A, establishing a model of a main steam temperature system of the thermal power plant boiler according to step response data of the main steam temperature system of the thermal power plant boiler; b, calculating the temperature-reducing water spraying quantity u (k) according to a fractional order PI dynamic matrix control algorithm; c, adjusting the temperature-reducing water injection quantity according to u (k) calculated in the step B, and controlling the temperature of main steam of the boiler of the thermal power plant; step D, entering the next moment, returning to the step B, and repeating the steps B to D;
the patent with the patent application publication number of CN 107166360A provides a novel boiler main steam temperature adjusting device, which is characterized by comprising a primary superheater and a platen superheater which are connected in series, wherein the primary superheater is respectively communicated with one end of a temperature reduction steam pipeline and a steam pipeline in front of the primary superheater, the platen superheater is communicated with a steam pipeline in front of a secondary superheater inlet pipe group, the steam pipeline in front of the secondary superheater inlet pipe group is respectively communicated with the other end of the temperature reduction steam pipeline and the secondary superheater inlet pipe group, the secondary superheater inlet pipe group is connected in series with a secondary superheater outlet pipe group, and the secondary superheater outlet pipe group is connected in series with a main steam pipeline;
above-mentioned patent adopts the mode of multistage over heater series connection to carry out the accurate control temperature, nevertheless cooling water still direct and the inside steam direct contact of steam conduit for there is certain error in the cooling degree of accuracy still, and steam carries moisture and has caused certain influence to subsequent use operation, still need to establish dewatering equipment again to some accuracy requirements's operation, makes complex in production cost high.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a method for controlling the temperature of main steam after a boiler high-temperature superheater, which has the advantages that the temperature reduction operation from the outside can not only ensure that steam can not carry water to influence the subsequent production and use, but also more accurately control the temperature, effectively ensure the control quality of the steam temperature, and solve the problems that the temperature reduction water is directly contacted with the steam in a steam pipeline, so that the temperature reduction accuracy still has certain error, the steam carries moisture to cause certain influence on the subsequent use and operation, and some accurately required operations need to be additionally provided with dewatering equipment, so that the production is complicated and the cost is high.
(II) technical scheme
In order to realize the purposes that the subsequent production and use cannot be influenced by the steam with water in the external cooling operation, the temperature is more accurately controlled, and the control quality of the steam temperature is effectively ensured, the invention provides the following technical scheme: a method for controlling the temperature of main steam after a high-temperature superheater of a boiler comprises the following steps:
s1, sequentially installing a low-temperature superheater, a medium-temperature superheater and a high-temperature superheater in fixed positions, and selecting a proper main controller as central equipment for regulating and controlling the temperature of the whole steam;
s2, additionally arranging a first serpentine steam pipeline between the low-temperature superheater and the medium-temperature superheater, and additionally arranging a second serpentine steam pipeline between the medium-temperature superheater and the high-temperature superheater;
s3, respectively installing a first temperature measuring probe, a second temperature measuring probe, a first electromagnetic valve and a second electromagnetic valve at the inner sides of the two ends of the first serpentine steam pipeline and the second serpentine steam pipeline, and enabling the output ends of the first temperature measuring probe and the second temperature measuring probe to be electrically connected with the input end of the main controller;
s4, additionally arranging a plurality of radiating fins on the first serpentine steam pipeline and the second serpentine steam pipeline, arranging a water collecting tank below the first serpentine steam pipeline and the second serpentine steam pipeline, an L-shaped vertical plate positioned at the outer sides of the upper ends of the first serpentine steam pipeline and the second serpentine steam pipeline is fixedly arranged at the rear side of the water collecting tank, a horizontal part of the L-shaped vertical plate is provided with a through hole, a water cylinder is communicated in the through hole through a bearing rotating sleeve, a spray pipe is fixedly arranged at the lower end of the water cylinder, the lower end of the spray pipe is fixedly communicated with a plurality of spray heads, the upper end of the L-shaped vertical plate is provided with a water pump, the upper end of the water through cylinder is rotationally connected with a circulating water pipe communicated with the water collecting tank through a rotary sealing joint, the water pump is arranged on the circulating water pipe, a driven bevel gear is fixedly sleeved on the wall of the water passing cylinder, a rotating motor is fixedly arranged at the upper end of the L-shaped vertical plate, the output end of the rotating motor is fixedly connected with a driving bevel gear meshed with a driven bevel gear;
s5, inputting a temperature change model after contact reaction of water quantity sprayed by a spray head and a first serpentine steam pipeline and a second serpentine steam pipeline in the main controller as a basis for regulating water spraying quantity, so that the output end of the main controller is electrically connected with the input end of the water pump;
s6, sequentially passing the steam through a low-temperature superheater, a medium-temperature superheater and a high-temperature superheater, gradually raising the steam to a superheated temperature to meet the use requirement, when steam flows through the first snake-shaped steam pipeline and the second snake-shaped steam pipeline, the first temperature measuring probe monitors the temperature of the steam when the steam enters the steam in real time, and a signal is fed back to the main controller, the water pump is started according to a temperature change model in the main controller, the water pump conveys cooling water to the spray head, the cooling water is sprayed out at a high speed to be contacted with the first snakelike steam pipeline and the second snakelike steam pipeline to regulate and control the steam temperature, when the heat is too high, the second electromagnetic valve is closed, so that the steam is left in the first snake-shaped steam pipeline and the second snake-shaped steam pipeline for continuous cooling treatment, and the heat of the steam can be quickly dissipated to the outer walls of the first snake-shaped steam pipeline and the second snake-shaped steam pipeline through the arrangement of the radiating fins for sufficient cooling operation;
s7, the first temperature measuring probe feeds back the temperature change condition of the steam in real time in the cooling process, and the main controller regulates and controls the water spray quantity of the cooling spray head to regulate and control the temperature of the steam, so that the temperature of the steam is always in a proper temperature range, and the temperature of the superheated steam is accurately regulated and controlled;
and S8, recycling the cooled cooling water into the water collecting tank for recycling.
Preferably, the upper end of the water collecting tank is integrally provided with a flared part.
Preferably, two supporting plates are symmetrically arranged on the inner side of the upper end of the water collecting tank, and the upper side of each supporting plate is supported and connected with the filter screen plate.
Preferably, the inner ends of the heat dissipation fins extend into the first serpentine steam pipeline and the second serpentine steam pipeline, and the heat dissipation fins are made of copper alloy.
(III) advantageous effects
Compared with the prior art, the invention provides a method for controlling the temperature of rear main steam of a high-temperature superheater of a boiler, which has the following beneficial effects:
the main steam temperature control method behind the boiler high-temperature superheater comprises a low-temperature superheater, a middle-temperature superheater and a high-temperature superheater, wherein the three superheaters form a superheating structure and can uniformly stabilize the steam temperature to perform superheating operation, a first temperature probe monitors the inlet temperature of steam in real time and feeds back signals to a main controller, the main controller sends an instruction to start a water pump, the water pump conveys cooling water to a water spray pipe and enables the cooling water to be in contact with a first serpentine steam pipeline and a second serpentine steam pipeline through spraying out of a spray head so as to cool the steam from the outside, heat carried by the steam can be effectively guided out of the first serpentine steam pipeline and the second serpentine steam pipeline through arrangement of heat dissipation fins, rapid cooling operation can be performed, and the serpentine arrangement of the first serpentine steam pipeline and the second serpentine steam pipeline enables the steam to stay in the steam pipeline for more time, give the cooling abundant time, and when the high temperature, the setting of first solenoid valve and second solenoid valve can be detained steam and carry out abundant cooling operation in first snakelike steam conduit and the snakelike steam conduit of second, and the cooling operation from the outside not only makes steam can not take water to influence follow-up production and use, and is more accurate to the control of temperature, has effectively guaranteed steam temperature's control quality.
Drawings
FIG. 1 is a schematic flow structure diagram of a method for controlling the temperature of main steam after a high-temperature superheater of a boiler according to the present invention;
FIG. 2 is an enlarged view of a portion A in FIG. 1 of a method for controlling the temperature of main steam after a high-temperature superheater of a boiler according to the present invention;
fig. 3 is a schematic structural diagram of a first serpentine steam pipeline in a plan view of a flow of a method for controlling a temperature of main steam after a high-temperature superheater of a boiler according to the present invention.
In the figure: 1 low temperature superheater, 2 medium temperature superheater, 3 high temperature superheater, 4 master controller, 5 first snakelike steam conduit, 6 second snakelike steam conduit, 7 first temperature probe, 8 second temperature probe, 9 first solenoid valve, 10 second solenoid valve, 11 radiating fin, 12 header tanks, 13L shape riser, 14 logical water drum, 15 spray pipes, 16 shower nozzles, 17 water pump, 18 rotary seal joint, 19 circulating pipe, 20 driven bevel gear, 21 rotating electrical machines, 22 initiative bevel gear, 23 flaring portion, 24 layer boards, 25 filter plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Referring to fig. 1-3, a method for controlling the temperature of the main steam after the high-temperature superheater of the boiler comprises the following steps:
s1, sequentially installing a low-temperature superheater 1, a medium-temperature superheater 2 and a high-temperature superheater 3 in fixed positions, and selecting a proper main controller 4 as central equipment for regulating and controlling the temperature of the whole steam;
s2, additionally arranging a first serpentine steam pipeline 5 between the low-temperature superheater 1 and the medium-temperature superheater 2, and additionally arranging a second serpentine steam pipeline 6 between the medium-temperature superheater 2 and the high-temperature superheater 3;
s3, respectively installing a first temperature measuring probe 7, a second temperature measuring probe 8, a first electromagnetic valve 9 and a second electromagnetic valve 10 on the inner sides of two ends of the first snake-shaped steam pipeline 5 and the second snake-shaped steam pipeline 6, and enabling the output ends of the first temperature measuring probe 7 and the second temperature measuring probe 8 to be electrically connected with the input end of the main controller 4;
s4, additionally arranging a plurality of radiating fins 11 on the first snake-shaped steam pipeline 5 and the second snake-shaped steam pipeline 6, arranging a water collecting tank 12 below the first snake-shaped steam pipeline 5 and the second snake-shaped steam pipeline 6, fixedly arranging an L-shaped vertical plate 13 which is positioned on the outer side of the upper ends of the first snake-shaped steam pipeline 5 and the second snake-shaped steam pipeline 6 on the rear side of the water collecting tank 12, arranging through holes on the horizontal part of the L-shaped vertical plate 13, communicating a water cylinder 14 in the through holes through a bearing rotating sleeve, fixedly arranging a water spraying pipe 15 at the lower end of the water through cylinder 14, fixedly communicating a plurality of spray heads 16 at the lower end of the water spraying pipe 15, arranging a water pump 17 at the upper end of the L-shaped vertical plate 13, rotatably connecting the upper end of the water through cylinder 14 with a circulating water pipe 19 communicated with the water collecting tank 12 through a rotary sealing joint 18, arranging the water pump 17 on the circulating water pipe 19, fixedly sleeving a driven bevel gear 20 on the cylinder wall of the water through cylinder 14, a rotating motor 21 is fixedly arranged at the upper end of the L-shaped vertical plate 13, and the output end of the rotating motor 21 is fixedly connected with a driving bevel gear 22 meshed with the driven bevel gear 20;
s5, inputting a temperature change model after the water quantity sprayed by the spray head 16 and the first snake-shaped steam pipeline 5 and the second snake-shaped steam pipeline 6 are in contact reaction in the main controller 4 as a basis for regulating the water spraying quantity, so that the output end of the main controller 4 is electrically connected with the input end of the water pump 17;
s6. loop through low temperature over heater 1 with steam, in medium temperature over heater 2 and the high temperature over heater 3, in proper order gradual messenger's steam rises to overheat temperature and reaches the user demand, when steam circulates in through first snakelike steam conduit 5 and second snakelike steam conduit 6, temperature when first temperature probe 7 admits air steam carries out real-time supervision, and feedback signal starts water pump 17 according to the temperature variation model in master controller 4 in to master controller 4, water pump 17 carries cooling water to shower nozzle 16 in high-speed blowout and first snakelike steam conduit 5 and the contact of second snakelike steam conduit 6 and regulates and control steam temperature, close second solenoid valve 10 when the heat is too high, make steam stay and carry out lasting cooling processing in first snakelike steam conduit 5 and second snakelike steam conduit 6, radiating fin's setting makes the heat of steam can distribute fast and carry out abundant cooling at the outer wall of first snakelike steam conduit 5 and second snakelike steam conduit 6 Operating;
s7, in the cooling process, the first temperature measuring probe 7 feeds back the temperature change condition of the steam in real time, and the main controller 4 regulates and controls the water spray quantity of the cooling spray head to regulate and control the steam temperature, so that the steam temperature is always in a proper temperature range, and the superheated steam temperature is accurately regulated and controlled;
and S8, recycling the cooled cooling water into the water collecting tank 12 for recycling.
The upper end of the water collection tank 12 is integrally provided with a flared portion 23.
Two supporting plates 24 are symmetrically arranged on the inner side of the upper end of the water collecting tank 12, and a filter screen plate 25 is supported and connected on the upper side of the supporting plates 24.
The inner ends of the heat radiating fins 11 extend into the first snake-shaped steam pipeline 5 and the second snake-shaped steam pipeline 6, and the heat radiating fins 11 are made of copper alloy.
In conclusion, according to the method for controlling the temperature of the main steam after the high-temperature superheater of the boiler, the superheaters 1, 2 and 3 are arranged, the superheating structure formed by the three superheaters can uniformly and stably superheat the steam temperature, the first temperature probe 7 monitors the inlet temperature of the steam in real time and feeds back a signal to the main controller 4, the main controller 4 sends an instruction to start the water pump 17, the water pump 17 conveys cooling water to the water spray pipe 15 and sprays the cooling water through the spray head 16 to enable the cooling water to be in contact with the first serpentine steam pipeline 5 and the second serpentine steam pipeline 6 to cool the steam from the outside, the heat carried by the steam can be effectively guided out of the first serpentine steam pipeline 5 and the second serpentine steam pipeline 6 through the arrangement of the heat dissipation fins 11, the rapid cooling operation can be performed, the serpentine arrangement of the first serpentine steam pipeline 5 and the second serpentine steam pipeline 6 enables the steam to stay in the steam pipeline for more time, give the cooling abundant time, and when the high temperature, the setting of first solenoid valve 9 and second solenoid valve 10 can be detained steam and carry out abundant cooling operation in first snakelike steam conduit 5 and the snakelike steam conduit 6 of second, and the operation of cooling from the outside not only makes steam can not take water to influence follow-up production and use, and more accurate to the control of temperature, has effectively guaranteed steam temperature's control quality.
It is to be noted that 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A method for controlling the temperature of main steam after a high-temperature superheater of a boiler is characterized by comprising the following steps: the method comprises the following steps:
s1, sequentially installing a low-temperature superheater (1), a medium-temperature superheater (2) and a high-temperature superheater (3) at fixed positions, and selecting a proper main controller (4) as central equipment for regulating and controlling the temperature of the whole steam;
s2, additionally arranging a first snake-shaped steam pipeline (5) between the low-temperature superheater (1) and the medium-temperature superheater (2), and additionally arranging a second snake-shaped steam pipeline (6) between the medium-temperature superheater (2) and the high-temperature superheater (3);
s3, respectively installing a first temperature probe (7), a second temperature probe (8), a first electromagnetic valve (9) and a second electromagnetic valve (10) at the inner sides of the two ends of the first snake-shaped steam pipeline (5) and the second snake-shaped steam pipeline (6), and enabling the output ends of the first temperature probe (7) and the second temperature probe (8) to be electrically connected with the input end of the main controller (4);
s4, additionally arranging a plurality of radiating fins (11) on the first snake-shaped steam pipeline (5) and the second snake-shaped steam pipeline (6), arranging a water collecting tank (12) below the first snake-shaped steam pipeline (5) and the second snake-shaped steam pipeline (6), fixedly arranging an L-shaped vertical plate (13) which is positioned on the outer side of the upper ends of the first snake-shaped steam pipeline (5) and the second snake-shaped steam pipeline (6) on the rear side of the water collecting tank (12), arranging a through hole on the horizontal part of the L-shaped vertical plate (13), communicating a water cylinder (14) in the through hole through a bearing rotating sleeve, fixedly arranging a water spraying pipe (15) at the lower end of the water spraying pipe (14), fixedly communicating a plurality of spray nozzles (16) at the lower end of the water spraying pipe (15), arranging a water pump (17) at the upper end of the L-shaped vertical plate (13), and rotatably connecting a circulating water pipe (19) communicated with the water collecting tank (12) at the upper end of the water passing cylinder (14) through a rotary sealing joint (18), the water pump (17) is arranged on the circulating water pipe (19), a driven bevel gear (20) is fixedly sleeved on the wall of the water passing cylinder (14), a rotating motor (21) is fixedly arranged at the upper end of the L-shaped vertical plate (13), and the output end of the rotating motor (21) is fixedly connected with a driving bevel gear (22) meshed with the driven bevel gear (20);
s5, inputting a temperature change model after contact reaction of water quantity sprayed by a spray head (16) and a first snake-shaped steam pipeline (5) and a second snake-shaped steam pipeline (6) in a main controller (4) as a basis for regulating water spraying quantity, so that the output end of the main controller (4) is electrically connected with the input end of a water pump (17);
s6, enabling steam to sequentially and gradually pass through the low-temperature superheater (1), the medium-temperature superheater (2) and the high-temperature superheater (3), enabling the steam to rise to the overheat temperature to meet the use requirement, when the steam flows through the first serpentine steam pipeline (5) and the second serpentine steam pipeline (6), monitoring the temperature of the steam when the steam enters air in real time by the first temperature measuring probe (7), feeding back a signal to the main controller (4), starting the water pump (17) according to a temperature change model in the main controller (4), conveying cooling water to the spray head (16) by the water pump (17), spraying the cooling water at a high speed to be in contact with the first serpentine steam pipeline (5) and the second serpentine steam pipeline (6) to regulate and control the steam temperature, and closing the second electromagnetic valve (10) when the heat is too high, enabling the steam to remain in the first serpentine steam pipeline (5) and the second serpentine steam pipeline (6) to be subjected to continuous cooling treatment, the arrangement of the radiating fins enables the heat of the steam to be quickly radiated on the outer walls of the first serpentine steam pipeline (5) and the second serpentine steam pipeline (6) to be fully cooled;
s7, in the cooling process, the first temperature measuring probe (7) feeds back the temperature change condition of the steam in real time, and the main controller (4) regulates and controls the water spray quantity of the cooling spray head to regulate and control the steam temperature, so that the steam temperature is always in a proper temperature range, and the superheated steam temperature is accurately regulated and controlled;
and S8, recovering the cooled cooling water into the water collecting tank (12) for recycling.
2. The method for controlling the temperature of the main steam after the high-temperature superheater of the boiler according to claim 1, characterized in that: the upper end of the water collecting tank (12) is integrally provided with a flared part (23).
3. The method for controlling the temperature of the main steam after the high-temperature superheater of the boiler according to claim 1, characterized by comprising the following steps of: two supporting plates (24) are symmetrically arranged on the inner side of the upper end of the water collecting tank (12), and the upper side of each supporting plate (24) is supported and connected with a filter screen plate (25).
4. The method for controlling the temperature of the main steam after the high-temperature superheater of the boiler according to claim 3, characterized in that: the inner ends of the heat radiating fins (11) extend into the first snake-shaped steam pipeline (5) and the second snake-shaped steam pipeline (6), and the heat radiating fins (11) are made of copper alloy.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2337738A1 (en) * | 1973-07-25 | 1975-02-06 | Babcock & Wilcox Ag | INJECTION HOT STEAM COOLER |
| JPH11173505A (en) * | 1997-12-15 | 1999-06-29 | Mitsubishi Heavy Ind Ltd | Steam temperature reducer |
| CN204554785U (en) * | 2015-04-14 | 2015-08-12 | 尤秀春 | Contact attemperator |
| CN107709880A (en) * | 2015-04-02 | 2018-02-16 | 爱默生伏尔甘控股有限责任公司 | Attemperator system |
| CN110686227A (en) * | 2019-10-31 | 2020-01-14 | 北京京诚科林环保科技有限公司 | Intermediate reheat steam power generation system |
| CN213178302U (en) * | 2020-07-28 | 2021-05-11 | 四川省洛源食品有限公司 | Steam boiler water spray desuperheater |
-
2021
- 2021-06-29 CN CN202110729228.4A patent/CN113432112B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2337738A1 (en) * | 1973-07-25 | 1975-02-06 | Babcock & Wilcox Ag | INJECTION HOT STEAM COOLER |
| JPH11173505A (en) * | 1997-12-15 | 1999-06-29 | Mitsubishi Heavy Ind Ltd | Steam temperature reducer |
| CN107709880A (en) * | 2015-04-02 | 2018-02-16 | 爱默生伏尔甘控股有限责任公司 | Attemperator system |
| CN204554785U (en) * | 2015-04-14 | 2015-08-12 | 尤秀春 | Contact attemperator |
| CN110686227A (en) * | 2019-10-31 | 2020-01-14 | 北京京诚科林环保科技有限公司 | Intermediate reheat steam power generation system |
| CN213178302U (en) * | 2020-07-28 | 2021-05-11 | 四川省洛源食品有限公司 | Steam boiler water spray desuperheater |
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