CN204554773U - A kind of direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim - Google Patents
A kind of direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim Download PDFInfo
- Publication number
- CN204554773U CN204554773U CN201520172850.XU CN201520172850U CN204554773U CN 204554773 U CN204554773 U CN 204554773U CN 201520172850 U CN201520172850 U CN 201520172850U CN 204554773 U CN204554773 U CN 204554773U
- Authority
- CN
- China
- Prior art keywords
- flash vessel
- pressure
- pressure flash
- entrance
- 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
Landscapes
- Cookers (AREA)
Abstract
The utility model discloses a kind of direct current cooker and start the hydrophobic system utilizing pressure flash vessel to reclaim, wherein, the entrance of the outlet Bonding pressure flash vessel of separator storage tank, first outlet of pressure flash vessel connects the entrance of high-pressure heater, the outlet of high-pressure heater connects the first entrance of oxygen-eliminating device, second outlet of pressure flash vessel connects the second entrance of oxygen-eliminating device, 3rd outlet of pressure flash vessel connects the 3rd entrance of oxygen-eliminating device, and the 4th outlet of pressure flash vessel connects the entrance of unit rhone.The utility model has the following advantages: do not have rotary machine equipment in (1) this system, thereby reduce associated dynamical system, control system, cooling system, saved construction investment, and in running, maintenance workload is also smaller simultaneously; (2) this system is a closed system, does not contact, there is not the contaminated problem of system with air; (3) this system and vacuum system do not contact, and there is not the impact on unit vacuum.
Description
Technical field:
The utility model belongs to power domain, is specifically related to a kind of direct current cooker and starts the hydrophobic system utilizing pressure flash vessel to reclaim.
Background technology:
Electric station DC boiler is before state of becoming a cadre, and start separator and can separate a part of saturation water, these saturation waters are stored in the storage tank of separator, and it is hydrophobic that these water separated are called that direct current cooker starts.The hydrophobic discharge of current startup mainly contains following several approach.
The first utilizes boiler water circulating pump will start hydrophobic Water Sproading to boiler economizer entrance.This method mainly has the following disadvantages:
(1) start up system in the course of the work, and the working medium of boiler water circulating pump has higher temperature and pressure, higher to boiler water circulating pump quality requirement, and the boiler water circulating pump of our domestic super (super-) critical boiler is mainly by import at present.Import boiler water circulating pump costly and also the order cycle time longer, rapidly, the boiler water circulating pump supply of material often can not meet the needs of power plant construction in current thermal power generation development.
(2) cooling water quality of boiler water circulating pump motor chamber requires very high, all occurs, due to the blocking of motor chamber Inner filter net, to cause boiler pump motor temperature high and shutdown maintenance of having in a lot of power plant.
(3) boiler water circulating pump is very high to the reliability requirement of cooling water, once occurred because motor chamber cooling water is revealed in some power plant, high-temperature water in stove enters boiler water circulating pump motor chamber, boiler water circulating pump motor coil is burnt, shutdown maintenance of having to.
(4) maintenance of boiler water circulating pump is cumbersome.Because boiler water circulating pump is mainly by import, the maintenance condition that a lot of equipment supplier proposes is harsher, and power plant is difficult to reach maintenance requirement.Once had power plant due to motor chamber filter net jam, and the air transport of whole stove water pump is returned factory's cleaning filter screen, and lasted 1 month, expense waste is huge.
Second method is to air flash vessel by startup drain discharge.This method mainly has the following disadvantages:
(1) startup of direct current cooker is hydrophobic is saturated water under high pressure, after the dilatation of air flash vessel, a part enters in the air by the steam discharge of air flash vessel, and a part of water that can reclaim also can only be the saturation water under normal pressure, causes the waste of the water yield and heat.
(2) drop on after entering aerial water recovery in surrounding environment, pollution is caused to surrounding environment.
(3) if the saturation water water quality in air flash vessel is qualified, need to be disposed in condenser, but due to recycle-water temperature high, after entering condenser, improve condensing water temperature, the efficiency of unit can be reduced, also can have influence on the safe operation of condensate polishing treatment in addition.
(4) water in air flash vessel will be squeezed in condenser by drainage pump, adds investment.
(5) condenser is connected with air flash vessel, due to reasons such as valves leakages, have impact on condenser vacuum, reduces the efficiency of unit operation, has even had influence on the safe operation of unit.
(6) air flash vessel is not closed, and the dust in air inevitably enters in air flash vessel, adds and starts hydrophobic secondary pollution.If the water polluted enters in condenser, therrmodynamic system will be polluted.
Utility model content:
The purpose of this utility model is to start drain recovery the deficiencies in the prior art for current direct current cooker, provides a kind of direct current cooker and starts the hydrophobic system utilizing pressure flash vessel to reclaim.
For achieving the above object, the utility model adopts following technical scheme to be achieved:
Direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim, and comprises separator storage tank, pressure flash vessel, oxygen-eliminating device, high-pressure heater and unit rhone; Wherein,
The entrance of the outlet Bonding pressure flash vessel of separator storage tank, first outlet of pressure flash vessel connects the entrance of high-pressure heater, the outlet of high-pressure heater connects the first entrance of oxygen-eliminating device, second outlet of pressure flash vessel connects the second entrance of oxygen-eliminating device, 3rd outlet of pressure flash vessel connects the 3rd entrance of oxygen-eliminating device, and the 4th outlet of pressure flash vessel connects the entrance of unit rhone.
The utility model further improves and is, the pipeline of the entrance of the outlet Bonding pressure flash vessel of separator storage tank is provided with separator water storage tank water level control valve, the pipeline of the entrance of the first outlet connection high-pressure heater of pressure flash vessel is provided with pressure flash vessel water level and regulates main valve, the pipeline of the first entrance of the outlet connection oxygen-eliminating device of high-pressure heater is provided with high-pressure heater to oxygen-eliminating device drain regulating valve, the pipeline of the second entrance of the second outlet connection oxygen-eliminating device of pressure flash vessel is provided with pressure flash vessel water level and regulates secondary valve, the pipeline of the 3rd entrance of the 3rd outlet connection oxygen-eliminating device of pressure flash vessel is provided with pressure flash vessel pressure and regulates main valve, the pipeline of the entrance of the 4th outlet connection unit rhone of pressure flash vessel is provided with pressure flash vessel to unit rhone control valve.
The utility model further improves and is, also comprises auxiliary vapour header, and wherein, the 3rd outlet of pressure flash vessel is divided into two strands, and one connects the 3rd entrance of oxygen-eliminating device, and another strand connects the entrance of auxiliary vapour header.
The utility model further improves and is, the pipeline of the entrance of the auxiliary vapour header of the 3rd outlet connection of pressure flash vessel is provided with pressure flash vessel pressure and regulates secondary valve.
Compared with prior art, the utility model has following advantage:
A kind of direct current cooker of the utility model starts the hydrophobic system utilizing pressure flash vessel to reclaim, have the following advantages: in (1) this system, there is no rotary machine equipment, thereby reduce associated dynamical system, control system, cooling system, saved construction investment, in running, maintenance workload is also smaller simultaneously; (2) this system is a closed system, does not contact, there is not the contaminated problem of system with air; (3) this system and vacuum system do not contact, and there is not the impact on unit vacuum.
Accompanying drawing illustrates:
Fig. 1 is the structured flowchart that a kind of direct current cooker of the utility model starts the hydrophobic system utilizing pressure flash vessel to reclaim.
Detailed description of the invention:
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1, a kind of direct current cooker of the utility model starts the hydrophobic system utilizing pressure flash vessel to reclaim, and comprises separator storage tank 1, pressure flash vessel 3, oxygen-eliminating device 7, high-pressure heater 9 and unit rhone 11; Wherein,
The entrance of the outlet Bonding pressure flash vessel 3 of separator storage tank 1, first outlet of pressure flash vessel 3 connects the entrance of high-pressure heater 9, the outlet of high-pressure heater 9 connects the first entrance of oxygen-eliminating device 7, second outlet of pressure flash vessel 3 connects the second entrance of oxygen-eliminating device 7,3rd outlet of pressure flash vessel 3 connects the 3rd entrance of oxygen-eliminating device 7, and the 4th outlet of pressure flash vessel 3 connects the entrance of unit rhone 11.
Further, the pipeline of the entrance of the outlet Bonding pressure flash vessel 3 of separator storage tank 1 is provided with separator water storage tank water level control valve 2, the pipeline of the entrance of the first outlet connection high-pressure heater 9 of pressure flash vessel 3 is provided with pressure flash vessel water level and regulates main valve 8, the pipeline of the first entrance of the outlet connection oxygen-eliminating device 7 of high-pressure heater 9 is provided with high-pressure heater to oxygen-eliminating device drain regulating valve 12, the pipeline of the second entrance of the second outlet connection oxygen-eliminating device 7 of pressure flash vessel 3 is provided with pressure flash vessel water level and regulates secondary valve 13, the pipeline of the 3rd entrance of the 3rd outlet connection oxygen-eliminating device 7 of pressure flash vessel 3 is provided with pressure flash vessel pressure and regulates main valve 6, the pipeline of the entrance of the 4th outlet connection unit rhone 11 of pressure flash vessel 3 is provided with pressure flash vessel to unit rhone control valve 10.
In addition, the utility model also comprises auxiliary vapour header 5, and wherein, the 3rd outlet of pressure flash vessel 3 is divided into two strands, and one connects the 3rd entrance of oxygen-eliminating device 7, and another strand connects the entrance of auxiliary vapour header 5.Wherein, the pipeline that the 3rd outlet of pressure flash vessel 3 connects the entrance of auxiliary vapour header 5 is provided with pressure flash vessel pressure and regulates secondary valve 4.
In order to further understand the utility model, now an explanation is done to its course of work.
During work, direct current cooker startup is hydrophobic comes together in separator storage tank 1, and the water in separator storage tank 1 is discharged into pressure flash vessel 3 dilatation step-down by separator water storage tank water level control valve 2, produces the saturation water and steam that mate with high-pressure heater vapour lateral pressure; Saturation water regulates main valve 8 to enter high-pressure heater 9 vapour side by pressure flash vessel water level, after high-pressure heater 9 absorbs heat, get back to oxygen-eliminating device 7 by high-pressure heater to oxygen-eliminating device drain regulating valve 12; Steam regulates main valve 6 to enter oxygen-eliminating device 7 by pressure flash vessel pressure;
What pressure flash vessel 3 produced can not be regulated secondary valve 13 to be directly discharged into oxygen-eliminating device 7 by the water that high-pressure heater 9 reclaims by pressure flash vessel water level completely.What pressure flash vessel 3 produced can not be regulated secondary valve 4 to be directly discharged into auxiliary vapour header 5 by the steam that oxygen-eliminating device 7 reclaims by pressure flash vessel pressure completely.
In start-up course, underproof water is discharged into unit rhone 11 through excess pressure flash vessel to unit rhone control valve 10 by pressure flash vessel 3.
Pressure flash vessel 3 is depressured to the water dilatation in separator storage tank 1 saturation water and saturated vapor that mate with high-pressure heater 9 vapour lateral pressure; High-pressure heater 9 vapour lateral pressure chooses unit when nominal operating conditions, high-pressure heater 9 vapour lateral pressure.Water in separator storage tank 1 its flow, pressure, temperature in direct current cooker start-up course are constantly changes, when carrying out the design of pressure flash vessel, the water dilatation that will calculate in start-up course under each pressure working condition in separator storage tank 1 is depressured to dilatation multiple n and the dilatation volume flow Q of high-pressure heater 9 vapour side rated pressure, chooses maximum dilatation multiple n
maxand maximum dilatation volume flow Q
maxcarry out design pressure flash vessel.Under pressure flash vessel 3 will ensure the various operating modes in direct current cooker start-up course, the water dilatation in separator storage tank 1 can be depressured under the rated pressure of high-pressure heater 9 vapour side, ensure the safe operation of unit in removal process.
Wherein, dilatation multiple n is calculated according to following steps:
1) enthalpy h1, specific volume v1, the saturation temperature t1 of the water under certain operating mode in separator storage tank 1 is found according to steam thermodynamic property table, find the enthalpy h2 of saturation water during high-pressure heater 9 vapour side rated pressure, the specific volume v2 of saturation water, the temperature of saturation water, the enthalpy h3 of saturated vapor, the specific volume v3 of saturated vapor;
2) create the saturation water of x share after supposing the water dilatation step-down in separator storage tank, the saturated vapor of 1-x share, then have: h1=h2*x+h3*1-x, by the tentative calculation of given x value, ensures that above-mentioned equation is set up, finally determine the numerical value of x;
3) utilize formula n=(x*v2+ (1-x) * v3)/v1, calculate dilatation multiple.
The volume flow Q after dilatation is calculated according to following steps:
A) enthalpy h1, specific volume v1, the saturation temperature t1 of the water under certain operating mode in separator storage tank 1 is found according to steam thermodynamic property table, find the enthalpy h2 of saturation water during high-pressure heater 9 vapour side rated pressure, the specific volume v2 of saturation water, the temperature of saturation water, the enthalpy h3 of saturated vapor, the specific volume v3 of saturated vapor.According to boiler design parameter, determine the hydrophobic amount q of startup that separator produces under this operating mode;
B) create the saturation water of x share after supposing the water dilatation step-down in separator storage tank, the saturated vapor of 1-x share, then have: h1=h2*x+h3*1-x.By the tentative calculation of given x value, ensure that above-mentioned equation is set up, finally determine the numerical value of x;
C) utilize formula Q=q* (x*v2+ (1-x) * v3), calculate the volume flow after dilatation.
In addition, the flow area of pressure flash vessel is the n from separator storage tank to pressure flash vessel pipeline flow area
maxdoubly, volume chooses maximum dilatation volume flow Q
maxthe volume of 1 minute is no less than under operating mode.
Embodiment:
Start drain recovery for certain power plant 660MW Supercritical Unit Once-through Boiler below, the detailed description of the invention of this utility model is described.
General 660MW supercritical thermal power unit can design 3 grades of high-pressure heaters, i.e. No. 1 high-pressure heater, No. 2 high-pressure heaters, No. 3 high-pressure heaters.The drain discharge of No. 1 high-pressure heater is to No. 2 high-pressure heaters, and the drain discharge of No. 2 high-pressure heaters is to No. 3 high-pressure heaters, and the drain discharge of No. 3 high-pressure heaters is to oxygen-eliminating device.High-pressure heater in the utility model refers in particular to the hydrophobic high-pressure heater being discharged to oxygen-eliminating device, is No. 3 high-pressure heaters in this example.
When changing according to the dry hygrometric state of boiler design parameter determination direct current cooker boiler feedwater flow be 520t/h, separator outlet steam pressure 10MPa, temperature 310 DEG C;
According to unit design parameter, determine that the steam supply flow of oxygen-eliminating device during unit peak load operating mode is 182t/h, pressure 1.1MPa, temperature 355 DEG C;
According to unit design parameter, the flow that when determining unit peak load operating mode, No. 1 high-pressure heater to 2 high-pressure heater vapour side is hydrophobic is 142t/h, pressure is 7.2MPa, temperature is 263 DEG C;
According to unit design parameter, flow 310t/h, pressure 4.7MPa that when determining unit peak load operating mode, No. 2 high-pressure heater to 3 high-pressure heater vapour sides are hydrophobic, temperature 220 DEG C;
According to unit design parameter, when determining unit peak load operating mode, No. 3 high-pressure heaters are to hydrophobic flow 396t/h, the pressure 2.26MPa of oxygen-eliminating device, temperature 189 DEG C;
According to boiler design parameter determination direct current cooker separator outlet steam flow, storage tank saturation water flow at various pressures.Calculate and the saturation water constant enthalpy dilatation of (higher than 2MPa) under different pressures is depressurized to dilatation volume required for 2.0MPa pressure and dilatation multiple.Result of calculation is in table 1:
Table 1 saturation water dilatation result of calculation gathers
| Start separator sump pressure (MPa) | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Direct current cooker main steam flow (t/h) | 157 | 210 | 265 | 320 | 370 | 420 | 470 | 520 |
| Start hydrophobic flow (t/h) | 363 | 310 | 255 | 200 | 150 | 100 | 50 | 0 |
| Start hydrophobic saturation water volume (km 3/h) | 0.443 | 0.387 | 0.329 | 0.264 | 0.202 | 0.138 | 0.071 | 0 |
| Pressure (MPa) in pressure flash vessel | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Discharge (t/h) in pressure flash vessel | 344 | 281 | 222 | 168 | 122 | 78 | 38 | 0 |
| Steam flow amount (t/h) in pressure flash vessel | 19 | 29 | 33 | 32 | 28 | 22 | 12 | 0 |
| Saturation water volume (km 3/h) | 0.385 | 0.3 | 0.228 | 0.166 | 0.116 | 0.073 | 0.034 | 0 |
| Steam space (km 3/h) | 0.098 | 0.298 | 0.429 | 0.522 | 0.539 | 0.464 | 0.287 | 0 |
| Pressure flash vessel volume (km 3/h) | 0.483 | 0.578 | 0.657 | 0.688 | 0.655 | 0.537 | 0.321 | 0 |
| Dilatation multiple | 1.09 | 1.49 | 2 | 2.61 | 3.23 | 3.89 | 4.52 | 0 |
As can be seen from the above table, pressure is higher, needs the multiple of dilatation larger, and when pressure is 9MPa, dilatation multiple is 4.52 to the maximum.But after pressure increases, start and dredge discharge reduction, need the volume of dilatation to reduce on the contrary.When startup separator pressure is 6MPa, the pressure flash vessel volume of needs is maximum, is 0.688 (km
3/ h), its 1 minute volume is 11.47m
3.
The flow area choosing pressure flash vessel is 5 times of separator sump drainpipe flow area, and volume is 12m
3(i.e. the maximum volume of 1 minute), carrys out design pressure flash vessel.
The draining of steam-water separator storage tank is cut-in pressure flash vessel after separator water storage tank water level control valve.Pressure flash vessel draining one road is accessed on the vapour side drain water piping of No. 2 high-pressure heater to 3 high-pressure heaters, and designing this flow is 310t/h.One tunnel is connected on deaerator feedwater pipeline, and designing this flow is 520t/h.One tunnel is connected to unit rhone, and designing this flow is 520t/h.Pressure flash vessel steam discharge one tunnel access oxygen-eliminating device steam line, designing this flow is 40t/h.The auxiliary vapour header of one tunnel access unit, designing this flow is 40t/h.
This pressure flash vessel will consider the energy dissipating measure that the water of 10MPa pressure enters will have safety door, temperature, pressure, water level measuring point; Other NM design factor of pressure flash vessel will meet the design standard of electric pressure force container and pipeline.
The pipeline of pressure flash vessel to oxygen-eliminating device, high-pressure heater, auxiliary steam header, unit rhone designs control valve, the flow of the water entering high-pressure heater is regulated with it, enter the flow of the water and steam of oxygen-eliminating device, enter the steam flow of auxiliary vapour header, enter the flow of the water of unit rhone, come pressure and the water level of controlled pressure flash vessel further.
In unit starting process, when water quality is defective, water drains into unit rhone by pressure flash vessel;
When the pressure started in separator is less than 2MPa, the water started in separator storage tank enters oxygen-eliminating device by pressure flash vessel; Vapour in pressure flash vessel enters oxygen-eliminating device by jet chimney;
When the pressure started in separator is more than or equal to 2MPa, after the water started in separator storage tank passes through pressure flash vessel dilatation step-down, water enters No. 3 high-pressure heaters (unnecessary water enters oxygen-eliminating device) by pressure flash vessel; Vapour in pressure flash vessel enters oxygen-eliminating device (unnecessary vapour enters auxiliary vapour system) by jet chimney.
Claims (4)
1. direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim, and it is characterized in that: comprise separator storage tank (1), pressure flash vessel (3), oxygen-eliminating device (7), high-pressure heater (9) and unit rhone (11); Wherein,
The entrance of the outlet Bonding pressure flash vessel (3) of separator storage tank (1), first outlet of pressure flash vessel (3) connects the entrance of high-pressure heater (9), the outlet of high-pressure heater (9) connects the first entrance of oxygen-eliminating device (7), second outlet of pressure flash vessel (3) connects the second entrance of oxygen-eliminating device (7), 3rd outlet of pressure flash vessel (3) connects the 3rd entrance of oxygen-eliminating device (7), and the 4th outlet of pressure flash vessel (3) connects the entrance of unit rhone (11).
2. a kind of direct current cooker according to claim 1 starts the hydrophobic system utilizing pressure flash vessel to reclaim, it is characterized in that: the pipeline of the entrance of the outlet Bonding pressure flash vessel (3) of separator storage tank (1) is provided with separator water storage tank water level control valve (2), the pipeline of the entrance of the first outlet connection high-pressure heater (9) of pressure flash vessel (3) is provided with pressure flash vessel water level and regulates main valve (8), the pipeline of the first entrance of outlet connection oxygen-eliminating device (7) of high-pressure heater (9) is provided with high-pressure heater to oxygen-eliminating device drain regulating valve (12), the pipeline of the second entrance of the second outlet connection oxygen-eliminating device (7) of pressure flash vessel (3) is provided with pressure flash vessel water level and regulates secondary valve (13), the pipeline of the 3rd entrance of the 3rd outlet connection oxygen-eliminating device (7) of pressure flash vessel (3) is provided with pressure flash vessel pressure and regulates main valve (6), the pipeline of the entrance of the 4th outlet connection unit rhone (11) of pressure flash vessel (3) is provided with pressure flash vessel to unit rhone control valve (10).
3. a kind of direct current cooker according to claim 1 starts the hydrophobic system utilizing pressure flash vessel to reclaim, it is characterized in that: also comprise auxiliary vapour header (5), wherein, 3rd outlet of pressure flash vessel (3) is divided into two strands, one connects the 3rd entrance of oxygen-eliminating device (7), and another stock connects the entrance of auxiliary vapour header (5).
4. a kind of direct current cooker according to claim 3 starts the hydrophobic system utilizing pressure flash vessel to reclaim, and it is characterized in that: the pipeline of the entrance of the auxiliary vapour header (5) of the 3rd outlet connection of pressure flash vessel (3) is provided with pressure flash vessel pressure and regulates secondary valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520172850.XU CN204554773U (en) | 2015-03-25 | 2015-03-25 | A kind of direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520172850.XU CN204554773U (en) | 2015-03-25 | 2015-03-25 | A kind of direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204554773U true CN204554773U (en) | 2015-08-12 |
Family
ID=53829878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520172850.XU Active CN204554773U (en) | 2015-03-25 | 2015-03-25 | A kind of direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204554773U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713074A (en) * | 2015-03-25 | 2015-06-17 | 西安热工研究院有限公司 | System and method for recycling once-through boiler start-up drained water through pressure flash vessel |
| CN113446649A (en) * | 2021-07-30 | 2021-09-28 | 西安热工研究院有限公司 | Logic control system and method for high-energy water inlet regulating valve in double control modes |
| CN114754350A (en) * | 2022-03-08 | 2022-07-15 | 华北电力科学研究院有限责任公司 | Heat recovery system, method and device |
-
2015
- 2015-03-25 CN CN201520172850.XU patent/CN204554773U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713074A (en) * | 2015-03-25 | 2015-06-17 | 西安热工研究院有限公司 | System and method for recycling once-through boiler start-up drained water through pressure flash vessel |
| CN113446649A (en) * | 2021-07-30 | 2021-09-28 | 西安热工研究院有限公司 | Logic control system and method for high-energy water inlet regulating valve in double control modes |
| CN114754350A (en) * | 2022-03-08 | 2022-07-15 | 华北电力科学研究院有限责任公司 | Heat recovery system, method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104713074B (en) | A kind of direct current cooker starts the hydrophobic System and method for utilizing pressure flash vessel to reclaim | |
| CN106016230B (en) | A kind of Start-up Systems for Direct-through Boilers and method | |
| CN108167807B (en) | Drainage system of steam-air preheater of garbage incineration power plant | |
| CN106247312A (en) | A kind of extra-supercritical unit double reheat two-shipper backheat thermodynamic system without deaerator | |
| CN204554773U (en) | A kind of direct current cooker starts the hydrophobic system utilizing pressure flash vessel to reclaim | |
| CN103953915A (en) | Method for recycling startup drained water working medium and heat of secondary reheating boiler through high-pressure heaters | |
| CN112303611A (en) | Direct current furnace high energy water recovery system | |
| CN205261619U (en) | A fan heater drainage system for overcritical and ultra supercritical unit | |
| CN210267441U (en) | Recycling device for waste heat of periodic blowdown and continuous blowdown of power plant boiler | |
| CN104807245B (en) | A kind of low temperature heat system and residual-heat utilization method | |
| CN112303610A (en) | Operation system and method for recovering high-energy water in shutdown and non-shutdown operation mode | |
| CN104061027A (en) | High-temperature extracted steam cooling system of double-reheat turbine thermodynamic system | |
| CN206037003U (en) | Secondary reheating unit EC BEST steam turbine steam exhaust heating deoxidization boiler feed water's thermodynamic system | |
| CN202647718U (en) | Supercritical clamminess heating machine set heat supply net drainage treating system | |
| CN204612228U (en) | A kind of low temperature heat system | |
| CN105276564A (en) | Deaerator-free reheating system of supercritical (ultra-supercritical) unit | |
| CN203499741U (en) | Backpressure steam extraction small steam turbine thermal system coaxially arranged with primary reheating main steam turbine set | |
| CN102537930B (en) | Cleaning method for concurrent boiler | |
| CN202012939U (en) | Drainage system of boiler air heater of heat-engine plant | |
| CN103925022A (en) | Two-stage power generation system and method using low and medium pressure steam | |
| CN201706526U (en) | Steam supply system of air heater of power station boiler | |
| CN113864849B (en) | Dry-wet state undisturbed switching system and control method suitable for supercritical unit under deep peak regulation state | |
| CN203978523U (en) | The high temperature steam-extracting cooling system of Double reheat steam turbine thermodynamic system | |
| CN105605554B (en) | 300MW and ratings above fired power generating unit condensate method for supplementing water and device | |
| CN101846330B (en) | Steam supply system for steam air heater of utility boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |