CN109915810A - A kind of thermal power plant arranges the recycling of flash vessel waste heat surely and disappears white system and its working method - Google Patents
A kind of thermal power plant arranges the recycling of flash vessel waste heat surely and disappears white system and its working method Download PDFInfo
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- CN109915810A CN109915810A CN201910294913.1A CN201910294913A CN109915810A CN 109915810 A CN109915810 A CN 109915810A CN 201910294913 A CN201910294913 A CN 201910294913A CN 109915810 A CN109915810 A CN 109915810A
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- flash vessel
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- heat exchanger
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- 239000002918 waste heat Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004064 recycling Methods 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000000498 cooling water Substances 0.000 claims abstract description 27
- 238000010521 absorption reaction Methods 0.000 claims abstract description 18
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 235000019504 cigarettes Nutrition 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
Classifications
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Flash vessel waste heat is arranged surely the invention discloses a kind of thermal power plant recycles disappear white system and its working method, including unit condensate pump outlet condensing water conduit, cooling water shut-off valve, heat exchanger, return water shut-off valve and unit condensate system；Unit condensate pump outlet condensing water conduit is connected with one end of cooling water shut-off valve, the other end of cooling water shut-off valve is connected with the heat absorption side entrance of heat exchanger, the heat absorption side outlet of heat exchanger is connected through return water shut-off valve with unit condensate system, surely cold side of the emptying pipeline of flash vessel as heat exchanger is arranged, the system and its working method can recycle the low grade heat energy determined in row's flash vessel emptying pipeline, while it is white to achieve the purpose that disappear.
Description
Technical field
Disappear white technical field the invention belongs to thermal power plant, is related to a kind of thermal power plant and arranges the recycling of flash vessel waste heat surely disappearing white system
And its working method.
Background technique
With vigorously implementing for national energy conservation and emission reduction policy, thermal power plant gradually strengthens the utilization to residual heat of electric power plant, reaches
Reduction energy consumption, save the cost purpose, meanwhile, with the proposition of the theories such as green enterprises, the requirement of thermal power plant's environment protection field is more next
Stringenter, many power plant strengthen the improvement to evaporating, emitting, dripping or leaking of liquid or gas, and being arranged inside the emptying pipeline of flash vessel surely has low-grade steam to emit
Out, to there is the phenomenon that emitting white cigarette, the low-grade steam direct emission in the part is wasted part heat by thermal power plant so at present
Can, and visual pollution can be generated, corporate image is influenced, therefore, reinforces the utilization to the partial heat energy, can not only save energy
Source, moreover it is possible to improve corporate image.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, provides a kind of thermal power plant and arrange flash vessel waste heat surely
Disappear white system and its working method are recycled, the system and its working method can recycle the low product determined in row's flash vessel emptying pipeline
Position thermal energy, while it is white to achieve the purpose that disappear.
In order to achieve the above objectives, it includes that unit is solidifying that thermal power plant of the present invention, which arranges flash vessel waste heat surely and recycles the white system that disappears,
Bear water pump discharge condensing water conduit, cooling water shut-off valve, heat exchanger, return water shut-off valve and unit condensate system；
Unit condensate pump outlet condensing water conduit be connected with one end of cooling water shut-off valve, cooling water shut-off valve it is another
One end is connected with the heat absorption side entrance of heat exchanger, and the heat absorption side outlet of heat exchanger is through return water shut-off valve and unit condensate system
It is connected, arranges cold side of the emptying pipeline of flash vessel as heat exchanger surely.
Cooling water flow regulating device is provided between cooling water shut-off valve and the heat absorption side entrance of heat exchanger.
Return water temperature measuring equipment is provided on pipeline between heat absorption side outlet and the return water shut-off valve of heat exchanger.
It further include controller, wherein controller is connected with return water temperature measuring equipment and cooling water flow regulating device.
It further include the temperature measuring device for detecting emptying pipeline exit temperature, wherein temperature measuring device and control
Device processed is connected.
Thermal power plant of the present invention arrange surely flash vessel waste heat recycling disappear white system working method the following steps are included:
The condensed water that unit condensate pump outlet condensing water conduit is drawn enters the suction of heat exchanger through cooling water shut-off valve
Heat absorption heating is carried out in hot side, then is back in unit condensate system through return water shut-off valve, is arranged in flash vessel emptying pipeline surely
Steam and heat exchanger heat absorbing side in condensed water carry out heat exchange cooling, to be condensed into water droplet, then in the effect of self gravity
Lower inflow is arranged in flash vessel surely, is then reduced the water vapour content in row's flash vessel emptying pipeline surely, is determined row's flash vessel to reach
Empty low grade residual heat recycling and the white purpose that disappears in pipeline.
The invention has the following advantages:
Thermal power plant of the present invention arranges the recycling of flash vessel waste heat surely and disappears white system and its working method when specific operation,
It is drawn in the heat absorbing side that condensed water enters heat exchanger all the way, and led to by will be exported in condensing water conduit from unit condensate pump
The mode for crossing heat exchange recycles the tow taste heat emptied in pipeline, to realize the cooling and condensation of steam in emptying pipeline, with drop
The problem of humidity of steam exhaust is discharged in low emptying pipeline, and then effective solution emits white cigarette, structure is simple, easy to operate, practicability
It is relatively strong.In addition, steam condensation is arranged in flash vessel surely to flow under the effect of gravity after water droplet, it should be noted that this
Invention will determine row's flash vessel emptying pipeline middle-low grade thermal energy and be recycled to unit condensate system on the basis of not increasing energy consumption
In, the coal consumption of unit generation can be reduced to a certain extent, while effectively eliminating visual pollution caused by determining comb steam exhaust, have compared with
Good energy economy & environment benefit.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 it is cooling water shut-off valve, 2 be cooling water flow regulating device, 3 be fixed row's flash vessel, 4 is heat exchanger, 5
It is return water shut-off valve for return water temperature measuring equipment, 6,7 is controller.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, it includes unit condensate pump that thermal power plant of the present invention, which arranges flash vessel waste heat surely and recycles the white system that disappears,
Export condensing water conduit, cooling water shut-off valve 1, heat exchanger 4, return water shut-off valve 6 and unit condensate system；Unit condensate pump
Outlet condensing water conduit is connected with one end of cooling water shut-off valve 1, the suction of the other end and heat exchanger 4 of cooling water shut-off valve 1
Hot side entrance is connected, and the heat absorption side outlet of heat exchanger 4 is connected through return water shut-off valve 6 with unit condensate system, and fixed row expands
Cold side of the emptying pipeline of container 3 as heat exchanger 4.
Cooling water flow regulating device 2 is provided between cooling water shut-off valve 1 and the heat absorption side entrance of heat exchanger 4；Heat exchange
Return water temperature measuring equipment 5 is provided on pipeline between heat absorption side outlet and the return water shut-off valve 6 of device 4；The invention also includes controls
Device 7, wherein controller 7 is connected with return water temperature measuring equipment 5 and cooling water flow regulating device 2；The invention also includes for examining
Survey the temperature measuring device of emptying pipeline exit temperature, wherein temperature measuring device is connected with controller 7.
Thermal power plant of the present invention arrange surely flash vessel waste heat recycling disappear white system working method the following steps are included:
The condensed water that unit condensate pump outlet condensing water conduit is drawn enters heat exchanger 4 through cooling water shut-off valve 1
Heat absorption heating is carried out in heat absorbing side, then is back in unit condensate system through return water shut-off valve 6, arranges 3 evacuated tube of flash vessel surely
The condensed water in steam and 4 heat absorbing side of heat exchanger in road carries out heat exchange cooling, to be condensed into water droplet, then in self gravity
It acts on lower flow into arrange in flash vessel 3 surely, then reduces the water vapour content in row's flash vessel 3 emptying pipeline surely, determine row to reach
Flash vessel 3 empties tow taste heat recycling and the white purpose that disappears in pipeline.
Specifically, controller 7 empties the temperature information of pipeline exit by temperature measuring device real-time detection, lead to simultaneously
Cross the temperature of condensed water in pipeline between the heat absorption side outlet of 5 real-time detection heat exchanger 4 of return water temperature measuring equipment and return water shut-off valve 6
Information, when empty pipeline exit temperature information be more than or equal to preset temperature value when or when heat exchanger 4 heat absorption side outlet
When the temperature of condensed water is more than or equal to default condensing water temperature threshold value in pipeline between return water shut-off valve 6, then pass through cooling water
Flow regulator 2 increases the flow for entering condensed water in 4 heat absorbing side of heat exchanger, so that the steam condensation in pipeline will be emptied
To 90 DEG C hereinafter, condensed water recycles the heat of emptying pipeline middle-low grade by way of heat exchange simultaneously, and solve emptying pipeline
Exit emits the phenomenon that white cigarette.
Claims (6)
1. a kind of thermal power plant arranges flash vessel waste heat surely and recycles the white system that disappears, which is characterized in that solidifying including the outlet of unit condensate pump
Bear water pipeline, cooling water shut-off valve (1), heat exchanger (4), return water shut-off valve (6) and unit condensate system；
Unit condensate pump outlet condensing water conduit is connected with one end of cooling water shut-off valve (1), cooling water shut-off valve (1)
The other end is connected with the heat absorption side entrance of heat exchanger (4), and the heat absorption side outlet of heat exchanger (4) is through return water shut-off valve (6) and machine
Group condensate system is connected, and arranges cold side of the emptying pipeline of flash vessel (3) as heat exchanger (4) surely.
2. thermal power plant according to claim 1 arranges flash vessel waste heat surely and recycles the white system that disappears, which is characterized in that cooling water closes
Cooling water flow regulating device (2) are provided between disconnected valve (1) and the heat absorption side entrance of heat exchanger (4).
3. thermal power plant according to claim 2 arranges flash vessel waste heat surely and recycles the white system that disappears, which is characterized in that heat exchanger
(4) return water temperature measuring equipment (5) are provided on the pipeline between heat absorption side outlet and return water shut-off valve (6).
4. thermal power plant according to claim 3 arranges flash vessel waste heat surely and recycles the white system that disappears, which is characterized in that further include control
Device (7) processed, wherein controller (7) is connected with return water temperature measuring equipment (5) and cooling water flow regulating device (2).
5. thermal power plant according to claim 4 arranges flash vessel waste heat surely and recycles the white system that disappears, which is characterized in that further include using
In the temperature measuring device of detection emptying pipeline exit temperature, wherein temperature measuring device is connected with controller (7).
6. the working method that flash vessel waste heat recycles the white system that disappears is arranged surely by thermal power plant described in a kind of claim 1, which is characterized in that
The following steps are included:
The condensed water that unit condensate pump outlet condensing water conduit is drawn enters heat exchanger (4) through cooling water shut-off valve (1)
Heat absorption heating is carried out in heat absorbing side, then is back in unit condensate system through return water shut-off valve (6), arranges flash vessel (3) row surely
The condensed water in steam and heat exchanger (4) heat absorbing side in vacant duct carries out heat exchange cooling, to be condensed into water droplet, then at itself
It flows under the action of gravity and arranges in flash vessel (3) surely, then reduce the water vapour content in row flash vessel (3) emptying pipeline surely,
To achieve the purpose that the low grade residual heat recycling determined in row's flash vessel (3) emptying pipeline and disappear white.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910294913.1A CN109915810A (en) | 2019-04-12 | 2019-04-12 | A kind of thermal power plant arranges the recycling of flash vessel waste heat surely and disappears white system and its working method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910294913.1A CN109915810A (en) | 2019-04-12 | 2019-04-12 | A kind of thermal power plant arranges the recycling of flash vessel waste heat surely and disappears white system and its working method |
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| Publication Number | Publication Date |
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| CN109915810A true CN109915810A (en) | 2019-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910294913.1A Pending CN109915810A (en) | 2019-04-12 | 2019-04-12 | A kind of thermal power plant arranges the recycling of flash vessel waste heat surely and disappears white system and its working method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925737A (en) * | 2019-11-28 | 2020-03-27 | 国网河北省电力有限公司电力科学研究院 | White eliminating device without external power for continuous row flash tank |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204063999U (en) * | 2014-08-14 | 2014-12-31 | 河北玖翔节能技术有限公司 | Power generating system by glass-kiln waste heat dead steam recycling system |
| CN204213891U (en) * | 2014-09-30 | 2015-03-18 | 中国电力工程顾问集团东北电力设计院 | A kind of thermal power plant regular unloading container draining heat and working medium recycling system |
| CN109253444A (en) * | 2018-10-16 | 2019-01-22 | 陕西中河电力工程有限公司 | A kind of cooling hydrophobic development unit of pressure and its application method |
| CN208687699U (en) * | 2018-07-24 | 2019-04-02 | 西安热工研究院有限公司 | A kind of air suspended type flash vessel steam discharge working medium and residual neat recovering system |
| CN109578974A (en) * | 2018-12-12 | 2019-04-05 | 北京高能时代环境技术股份有限公司 | A kind of boiler waste heat recovery system and energy-saving boiler system |
| CN209763035U (en) * | 2019-04-12 | 2019-12-10 | 西安西热锅炉环保工程有限公司 | Waste heat recovery and white elimination system of thermal power plant's flash tank of surely arranging |
-
2019
- 2019-04-12 CN CN201910294913.1A patent/CN109915810A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204063999U (en) * | 2014-08-14 | 2014-12-31 | 河北玖翔节能技术有限公司 | Power generating system by glass-kiln waste heat dead steam recycling system |
| CN204213891U (en) * | 2014-09-30 | 2015-03-18 | 中国电力工程顾问集团东北电力设计院 | A kind of thermal power plant regular unloading container draining heat and working medium recycling system |
| CN208687699U (en) * | 2018-07-24 | 2019-04-02 | 西安热工研究院有限公司 | A kind of air suspended type flash vessel steam discharge working medium and residual neat recovering system |
| CN109253444A (en) * | 2018-10-16 | 2019-01-22 | 陕西中河电力工程有限公司 | A kind of cooling hydrophobic development unit of pressure and its application method |
| CN109578974A (en) * | 2018-12-12 | 2019-04-05 | 北京高能时代环境技术股份有限公司 | A kind of boiler waste heat recovery system and energy-saving boiler system |
| CN209763035U (en) * | 2019-04-12 | 2019-12-10 | 西安西热锅炉环保工程有限公司 | Waste heat recovery and white elimination system of thermal power plant's flash tank of surely arranging |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925737A (en) * | 2019-11-28 | 2020-03-27 | 国网河北省电力有限公司电力科学研究院 | White eliminating device without external power for continuous row flash tank |
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