CN109140421A - A kind of Thermal generation unit steam reheat system - Google Patents
A kind of Thermal generation unit steam reheat system Download PDFInfo
- Publication number
- CN109140421A CN109140421A CN201811053785.3A CN201811053785A CN109140421A CN 109140421 A CN109140421 A CN 109140421A CN 201811053785 A CN201811053785 A CN 201811053785A CN 109140421 A CN109140421 A CN 109140421A
- Authority
- CN
- China
- Prior art keywords
- steam
- ejector
- temperature reheater
- pipeline
- temperature
- 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.)
- Pending
Links
- 230000008676 import Effects 0.000 claims abstract description 4
- 238000010025 steaming Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 239000007921 spray Substances 0.000 description 18
- 239000003795 chemical substances by application Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 238000003303 reheating Methods 0.000 description 5
- 208000037656 Respiratory Sounds Diseases 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000005514 two-phase flow Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- F22G5/14—Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays by live steam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a kind of Thermal generation unit steam reheat systems, it includes low-temperature reheater and high temperature reheater, the steam feeding tube road of system and the steam inlet of low-temperature reheater connect, the steam (vapor) outlet of low-temperature reheater is connected by the steam inlet of connecting pipe and high temperature reheater, the steam (vapor) outlet of high temperature reheater and the steam export pipeline connection of system, system further includes desuperheated system pipeline and steam ejector, steam ejector is mounted in connecting pipe, the import of desuperheated system pipeline is connected to steam feeding tube road, the outlet of desuperheated system pipeline is connect with steam ejector, the steam control valve for controlling its steam flow is equipped on desuperheated system pipeline；The steam in steam ejector is flowed into after low-temperature reheater and the steam flowed into steam ejector through desuperheated system pipeline is mixed in the intracavitary generation of steam ejector, the steam flow high temperature reheater ejected by steam ejector.Temperature lowering effect of the present invention is good.
Description
Technical field
The present invention relates to a kind of Thermal generation unit steam reheat systems.
Background technique
At present in thermal power industry Thermal generation unit steam reheat system, it is all made of spray desuperheating device to low temperature again
The steam of hot device exit portion carries out desuperheat to achieve the purpose that the temperature for reducing high temperature reheater outlet vapor, to reach pair
The control of the vapor (steam) temperature of steam reheat system is flowed out, and avoids pipeline caused by high temperature reheater outlet steam temperature overtemperature
Material ageing, damage.Spray desuperheating device is all made of water supply system water source as desuperheating agent at present, leads in actual use
It has the following problems:
1) for the desuperheating agent used due to spray desuperheating device for water supply system water source, desuperheat coolant-temperature gage is generally 180 DEG C,
480 DEG C are generally by desuperheated system temperature, the temperature difference reaches 300 DEG C.The part desuperheating water meeting when desuperheating water atomizing effect is poor
It directly sprays on the shell of attemperator, attemperator shell generates violent temperature and reduces, and frequent desuperheat makes attemperator shell
It is cracked, fracture the problems such as.
2) when the desuperheating water in spray desuperheating device carries out desuperheat to reheated steam, the steam flow of reheating steam system
It will increase, thermal energy increase after desuperheating water heating, increase the heat consumption rate of steam turbine, the economic performance of Steam Turbine can reduce.Root
According to calculating: for supercritical unit, every increase 10t/h reheater desuperheating water, thermal loss of steam turbine increases 4.157kJ/kWh, conversion
Coal consumption for power generation increases 0.15g/kWh；For extra-supercritical unit, every increase 10t/h reheater desuperheating water, thermal loss of steam turbine increases
2.773kJ/kWh, conversion coal consumption for power generation increase 0.10g/kWh.
3) since the desuperheating water water source in spray desuperheating device uses water supply source, pressure before and after Desuperheating water regulating valve can be made
Difference is very big, and regulating valve needs frequent progress small guide vane to adjust, in addition, the atomizer type selecting due to spray desuperheating device is according to most
Big attemperation water flow design, atomizing effect of the desuperheating water in Desuperheating device is very poor when small guide vane is adjusted, so that steam and water are mixed
Closing, which unevenly makes spray desuperheating device inner wall that violent temperature occur, reduces and generates great thermal stress, makes in Desuperheating device
Crackle, rupture etc. easily occur for wall.Regulating valve easily occur damage can not close tight situation, also will appear more than feelings
Condition.
4) desuperheating water is in the case where being atomized poor, when with high-temperature steam undercompounding, the mixing room temperature of measurement
It cannot correctly show mixed actual average temperature, cause high temperature reheater exit site vapor (steam) temperature easily to occur excessively high
Or too low phenomenon, reduce the temperature performance of control of entire steam reheat system.
5) since there are vapour-water two phase flow, the water mixed in high-temperature steam is in spray desuperheating device in spray desuperheating device
Mixing chamber in flow at high speed, to the inner wall of mixing chamber cause it is strong wash away, caused after spray desuperheating device long-time use
The thinned of its cylinder, rupture etc..
6) desuperheating process of the desuperheating water in spray desuperheating device is complicated, mainly by desuperheating water decompression-→ from steam
Heat absorption is warming up to desuperheating water after saturation temperature-→ desuperheat water vapor-→ vaporization and the processes such as heats up, and entire desuperheating process is in system
The middle distance for needing to grow could be completed very much.
7) be desuperheating water inside the desuperheat water spray pipe in spray desuperheating device, outside is high-temperature steam, and internal-external temperature difference is big, spray
Weld seam between pipe and attemperator bears very big thermal stress；Desuperheat water spray pipe is located at the interlude of pipeline, and jet pipe is held in operation
It is impacted by steam stream and jet pipe vibration occurs.Often there is jet pipe crackle, fracture is asked under the action of thermal stress and vibration in jet pipe
Topic, desuperheating water can enter in spray desuperheating device along fracture location without nozzle atomization, and temperature lowering effect is made to be deteriorated.
Summary of the invention
The technical problems to be solved by the invention are just to provide a kind of Thermal generation unit steam reheating that temperature lowering effect is good
System,
Above-mentioned technical problem is solved, The technical solution adopted by the invention is as follows:
A kind of Thermal generation unit steam reheat system, the system comprises low-temperature reheater and high temperature reheater, systems
Steam feeding tube road and the steam inlet of low-temperature reheater connect, the steam (vapor) outlet of low-temperature reheater passes through connecting pipe and high
The steam inlet of warm reheater connects, the steam (vapor) outlet of high temperature reheater and the steam export pipeline connection of system, characterized in that
The system also includes desuperheated system pipeline and steam ejector, steam ejector is mounted in connecting pipe, desuperheated system pipe
The import in road is connected to steam feeding tube road, and the outlet of desuperheated system pipeline is connect with steam ejector, in desuperheated system pipeline
It is equipped with the steam control valve for controlling its steam flow；After low-temperature reheater flow into steam ejector in steam and
The steam flowed into steam ejector through desuperheated system pipeline is mixed in the intracavitary generation of steam ejector, is sprayed by steam ejector
The steam flow high temperature reheater of injection.
The system also includes the first vapor (steam) temperature detector and the second vapor (steam) temperature detector, the detections of the first vapor (steam) temperature
Device is mounted in connecting pipe, and between steam ejector and high temperature reheater, and the second vapor (steam) temperature detector is mounted on
Steam exports on pipeline.
Compared with prior art, the invention has the following advantages:
System of the invention cleverly takes the steam in steam feeding tube road as desuperheating agent, in steam feeding tube road
Steam be the steam not reheated, will be reheated through low-temperature reheater by the injector of low-temperature reheater exit site
Steam and the steam mixing that is not reheated spray, subsequently into high temperature reheater, by adjusting through low-temperature reheater again
The mixed proportion of the steam of heating and the steam not reheated, i.e., the vapor (steam) temperature of controllable outflow steam reheat system.
Its main technical effect are as follows:
1) present invention reduces the temperature of high-temperature steam by mixing low temp steam and high-temperature steam, to adjust most final temperature
Phase transition process is not present in the mixing of degree, steam, mixes in the high-speed jet of the nozzle position of steam ejector, and after spout
Entire heat exchanging process is completed, the heat exchanging process time is short, and the heat exchange mixer length of demand is short, simplifies entire steam again
The structure of hot systems.
It 2) is 160 since the temperature difference of the steam Jing Guo low-temperature reheater reheating and not reheated steam can be much smaller
DEG C or so, and the medium for desuperheat is also steam, is gaseous state, can be very good effectively to be mixed, so that steaming
The temperature difference that system is born in vapour mixed process is small, it is relatively uniform to be heated, small to the thermal shock of system, is not in local temperature mistake
Phenomena such as low situation, the device and pipeline of system are not in crackle, fracture.
3) not the case where not having vapour-water two phase flow due to the mixing temperature reducing regulation using steam and steam, in whole process
In the presence of, will not device to system and pipeline cause erosion damage.
4) desuperheating agent of the invention is that the work of steam reheat system itself is situated between using the steam in steam feeding tube road
Matter enters without the medium of remaining system, so that the overall quality of steam reheat system steam of the invention and flow do not increase,
Heat is absorbed from boiler using itself working media completely, therefore, is rejected when calculating the heat-economy of Thermal generation unit
The heat that steam reheat system desuperheating agent absorbs, namely improve entire power plant heat-economy.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Appended drawing reference meaning in figure:
1- low-temperature reheater；2- high temperature reheater；3- steam control valve；4- steam ejector；The inspection of the first vapor (steam) temperature of 5-
Survey device；6- the second vapor (steam) temperature detector；7- steam feeding tube road；8- desuperheated system pipeline；9- connecting pipe；10- steam is led
Pipeline out.
Specific embodiment
The present invention is further described below with reference to embodiment.
A kind of Thermal generation unit steam reheat system as shown in Figure 1 comprising low-temperature reheater 1, high temperature reheater
2, the steam feeding tube road 7 of desuperheated system pipeline 8 and steam ejector 4, system is connect with the steam inlet of low-temperature reheater 1,
The steam (vapor) outlet of low-temperature reheater 1 is connect by connecting pipe 9 with the steam inlet of high temperature reheater 2, the steaming of high temperature reheater 2
Vapor outlet and the steam of system export pipeline 10 connect, and steam ejector 4 is mounted in connecting pipe 9, desuperheated system pipeline 8
Import is connected to steam feeding tube road 7, and the outlet of desuperheated system pipeline 8 is connect with steam ejector 4, in desuperheated system pipeline 8
It is equipped with the steam control valve 3 for controlling its steam flow；The steaming in steam ejector 4 is flowed into after low-temperature reheater 1
Vapour and the steam flowed into steam ejector 4 through desuperheated system pipeline 8 are mixed in the intracavitary generation of steam ejector 4, by steam
The steam flow high temperature reheater 2 that injector 4 ejects.Steam flow is controlled by control steam control valve 3, to control
The mixed proportion of steam and the steam not reheated by reheating, thus the final output temperature of control system.
This steam reheat system by the steam not reheated through desuperheated system pipeline 8 as desuperheating agent, due to low
The desuperheating agent of warm reheater exit site with it is smaller by desuperheated system pressure difference, to guarantee enough desuperheating agent flows, low
Steam ejector 4 is installed at the position of warm reheater outlet, improves desuperheating agent by ejector action and by between desuperheating agent
Pressure difference guarantees enough desuperheating agent flows.
Steam into steam feeding tube road 7 is divided into two parts, and a part is reheated by low-temperature reheater 1,
Temperature increases, and subsequently into steam ejector 4, another part enters steam ejector 4 by desuperheated system pipeline 8, by steam
Control valve 3 controls flow；Two bursts of steam streams are mixed and are ejected by steam ejector 4, mixed steaming in steam ejector 4
After steam flow enters the reheating of high temperature reheater 2, finally flowed out from steam export pipeline 10.
In order to preferably be detected and controlled to temperature, the system of the present embodiment further includes the first vapor (steam) temperature detector
5 and the second vapor (steam) temperature detector 6, the first vapor (steam) temperature detector 5 be mounted in connecting pipe 9, and be located at steam ejector 4
Between high temperature reheater 2, the first vapor (steam) temperature detector 5 is used to detect the temperature of the steam in 4 exit of steam ejector, the
Two vapor (steam) temperature detectors 6 are mounted on steam export pipeline 10, and the second vapor (steam) temperature detector 6 is for detecting steam delivery line
The temperature for the steam that the temperature and system of steam in road 10 finally export.
Since the steam of system is substantially at high temperature, in high pressure, the connection side between the pipeline and components of system
Formula has been all made of welding.
Motion process of the steam in steam ejector 4 are as follows: the steam reheated by low-temperature reheater is in steam ejection
Expansion accelerates in the jet pipe of device, outside nozzle pressure reduction to the pressure for being lower than the steam flowed into through desuperheated system pipeline, will
The steam flowed into through desuperheated system pipeline is drained to the intracavitary of steam ejector.In the intracavitary of injector, the high-temperature steam of high speed
It is sufficiently mixed with Low Temperature Steam, total interior energy of steam, mixed vapour enter after being mixed after the interior energy mixing of two bursts of steam streams
Slow down in the diffuser of injector and boost, the final mean temperature of steam after being mixed is discharged from the diffusion mouth of injector.
Claims (2)
1. a kind of Thermal generation unit steam reheat system, the system comprises low-temperature reheater and high temperature reheater, the system
The steam feeding tube road of system is connect with the steam inlet of the low-temperature reheater, and the steam (vapor) outlet of the low-temperature reheater passes through company
Adapter tube road is connect with the steam inlet of the high temperature reheater, the steam of the steam (vapor) outlet of the high temperature reheater and the system
Export pipeline connection, characterized in that the system also includes desuperheated system pipeline and steam ejector, the steam ejector peace
In the connecting pipe, the import of the desuperheated system pipeline is connected to the steam feeding tube road, the desuperheated system
The outlet of pipeline is connect with the steam ejector, and the steaming for controlling its steam flow is equipped on the desuperheated system pipeline
Vapour control valve；Steam in the steam ejector is flowed into after the low-temperature reheater and through the desuperheated system pipeline stream
The steam entered in the steam ejector is mixed in the intracavitary generation of the steam ejector, is ejected by the steam ejector
Steam flow described in high temperature reheater.
2. Thermal generation unit steam reheat system according to claim 1, it is characterised in that: the system also includes
One vapor (steam) temperature detector and the second vapor (steam) temperature detector, the first vapor (steam) temperature detector are mounted in connecting pipe,
And between the steam ejector and high temperature reheater, the second vapor (steam) temperature detector is mounted on the steam export
On pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053785.3A CN109140421A (en) | 2018-09-10 | 2018-09-10 | A kind of Thermal generation unit steam reheat system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811053785.3A CN109140421A (en) | 2018-09-10 | 2018-09-10 | A kind of Thermal generation unit steam reheat system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109140421A true CN109140421A (en) | 2019-01-04 |
Family
ID=64824536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811053785.3A Pending CN109140421A (en) | 2018-09-10 | 2018-09-10 | A kind of Thermal generation unit steam reheat system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109140421A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432157A (en) * | 2020-11-18 | 2021-03-02 | 哈尔滨锅炉厂有限责任公司 | Method for monitoring vaporization degree of desuperheating water |
| CN114576614A (en) * | 2022-02-28 | 2022-06-03 | 国能经济技术研究院有限责任公司 | Reheat steam temperature adjusting system and adjusting control method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005127638A (en) * | 2003-10-24 | 2005-05-19 | Toshiba Plant Systems & Services Corp | Steam attemperator |
| JP2007107839A (en) * | 2005-10-14 | 2007-04-26 | Tlv Co Ltd | Steam attemperator |
| CN201259213Y (en) * | 2008-08-14 | 2009-06-17 | 天壕节能科技有限公司 | Attemperation system for adjusting temperature of superheated vapour |
| CN202270485U (en) * | 2010-03-24 | 2012-06-13 | 青岛高远热能动力设备有限公司 | Adjustable injector |
| CN205560705U (en) * | 2016-04-28 | 2016-09-07 | 北京天诚同创电气有限公司 | Steam desuperheater |
| CN106196002A (en) * | 2016-07-01 | 2016-12-07 | 无锡锡能锅炉有限公司 | Gas fired-boiler saturated vapor regulates system with superheated steam |
| CN205878197U (en) * | 2016-08-15 | 2017-01-11 | 西安热工研究院有限公司 | Contains grey vapour source system of blowing of steam ejector |
| CN106949456A (en) * | 2017-03-29 | 2017-07-14 | 江联重工集团股份有限公司 | Low capacity boiler reheated steam multitube bypasses thermoregulating system |
| CN107166360A (en) * | 2017-05-11 | 2017-09-15 | 华北电力大学（保定） | New-type boiler main steam temperature adjusting means and control method |
| CN209371224U (en) * | 2018-09-10 | 2019-09-10 | 广东粤电靖海发电有限公司 | A kind of Thermal generation unit steam reheat system |
-
2018
- 2018-09-10 CN CN201811053785.3A patent/CN109140421A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005127638A (en) * | 2003-10-24 | 2005-05-19 | Toshiba Plant Systems & Services Corp | Steam attemperator |
| JP2007107839A (en) * | 2005-10-14 | 2007-04-26 | Tlv Co Ltd | Steam attemperator |
| CN201259213Y (en) * | 2008-08-14 | 2009-06-17 | 天壕节能科技有限公司 | Attemperation system for adjusting temperature of superheated vapour |
| CN202270485U (en) * | 2010-03-24 | 2012-06-13 | 青岛高远热能动力设备有限公司 | Adjustable injector |
| CN205560705U (en) * | 2016-04-28 | 2016-09-07 | 北京天诚同创电气有限公司 | Steam desuperheater |
| CN106196002A (en) * | 2016-07-01 | 2016-12-07 | 无锡锡能锅炉有限公司 | Gas fired-boiler saturated vapor regulates system with superheated steam |
| CN205878197U (en) * | 2016-08-15 | 2017-01-11 | 西安热工研究院有限公司 | Contains grey vapour source system of blowing of steam ejector |
| CN106949456A (en) * | 2017-03-29 | 2017-07-14 | 江联重工集团股份有限公司 | Low capacity boiler reheated steam multitube bypasses thermoregulating system |
| CN107166360A (en) * | 2017-05-11 | 2017-09-15 | 华北电力大学（保定） | New-type boiler main steam temperature adjusting means and control method |
| CN209371224U (en) * | 2018-09-10 | 2019-09-10 | 广东粤电靖海发电有限公司 | A kind of Thermal generation unit steam reheat system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112432157A (en) * | 2020-11-18 | 2021-03-02 | 哈尔滨锅炉厂有限责任公司 | Method for monitoring vaporization degree of desuperheating water |
| CN112432157B (en) * | 2020-11-18 | 2022-12-06 | 哈尔滨锅炉厂有限责任公司 | Method for monitoring vaporization degree of desuperheating water |
| CN114576614A (en) * | 2022-02-28 | 2022-06-03 | 国能经济技术研究院有限责任公司 | Reheat steam temperature adjusting system and adjusting control method |
| CN114576614B (en) * | 2022-02-28 | 2024-04-26 | 国能经济技术研究院有限责任公司 | Reheat steam temperature adjusting system and adjusting control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201259213Y (en) | Attemperation system for adjusting temperature of superheated vapour | |
| CN109140421A (en) | A kind of Thermal generation unit steam reheat system | |
| CN103900129B (en) | Range hood and be used for its warm wash system | |
| CN209371224U (en) | A kind of Thermal generation unit steam reheat system | |
| CN210740373U (en) | Steam-water injection type temperature and pressure reducing device | |
| JP6427815B2 (en) | Overheat reduction device and overheat reduction method | |
| CN206159828U (en) | A water spray nebulizer construct for temperature -reducing and pressure -reducing system | |
| CN110566937A (en) | steam-water injection type temperature and pressure reducing device and method | |
| CN209398458U (en) | A kind of energy saving desuperheat self-sealing system of turbine shaft seal | |
| CN104534105A (en) | Integrated steam exhaust temperature reduction pressurizer | |
| CN201382402Y (en) | Desuperheater | |
| CN211902835U (en) | Water spraying and temperature reducing system of platen superheater | |
| KR102003136B1 (en) | Boiler, combined cycle plant, and steam cooling method for boiler | |
| CN215723157U (en) | High-temperature steam desuperheater | |
| CN111521034A (en) | System for improve condenser vacuum | |
| CN201137931Y (en) | Spray attemperator for circulating fluid bed boiler | |
| CN111551388B (en) | Test system for testing separation performance of wave plate assembly of steam-water separation reheater | |
| CN212110607U (en) | Test system for testing separation performance of corrugated plate assembly of moisture separator reheater | |
| CN212998475U (en) | Condenser deaerating plant and system with injection type nozzle | |
| CN216281337U (en) | Boiler reheater temperature reducing device | |
| CN201105200Y (en) | Ammonia evaporator | |
| CN108954272B (en) | A kind of steam generator and its method for food heating | |
| CN106287763A (en) | A kind of soot blower vapour source apparatus utilizing low discharge final stage superheated steam | |
| CN213147455U (en) | Water supplementing and atomizing system for steam turbine condenser of thermoelectric unit | |
| CN109268076A (en) | A kind of energy saving desuperheat self-sealing system of turbine shaft seal |
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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190104 |
|
| WD01 | Invention patent application deemed withdrawn after publication |