CN104595721B - High pressure separate type temperature reducing system - Google Patents
High pressure separate type temperature reducing system Download PDFInfo
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- CN104595721B CN104595721B CN201410819246.1A CN201410819246A CN104595721B CN 104595721 B CN104595721 B CN 104595721B CN 201410819246 A CN201410819246 A CN 201410819246A CN 104595721 B CN104595721 B CN 104595721B
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- desuperheating
- regulating valve
- decompressor
- separate type
- high pressure
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Abstract
High pressure separate type temperature reducing system of the present invention refers to a kind of high steam separate type Desuperheating device, is particularly well-suited to the vapor (steam) temperatures such as turbine systems, steam generator system and pressure regulation occasion.Include decompressor, Desuperheating device, Desuperheating water regulating valve, regulating valve, first manual stop valve, the second hand stop valve and filter including high pressure separate type temperature reducing system；Regulating valve is opened bypass and is connected by first manual stop valve and upstream；Be connected by pipeline between regulating valve and Desuperheating device, coupling part using flange connect, in the duct between weld 90 ° of elbows；Leave desuperheating water suction flange in Desuperheating device middle part；Main steam line is anterior to install decompressor, and decompressor front and back end is connected by reduced pipe with main pipeline, and junction is equipped with flange；Desuperheating device inserts pipeline by support frame；Desuperheating device bottom is provided with the shower nozzle of control flow；There are Desuperheating water regulating valve, filter and the second hand stop valve in Desuperheating device branch circuit outlet sequential concatenation.
Description
Technical field
High pressure separate type temperature reducing system of the present invention refers to a kind of high steam separate type Desuperheating device, is particularly well-suited to
The vapor (steam) temperatures such as turbine systems, steam generator system and pressure regulation occasion.
Background technology
The method that existing market main flow obtains stabilization steam is that the unstable high steam in upstream passes through a whole set of pressure and temperature reducing
The steam of steady pressure and temperature is obtained after device treatment.Wherein the pressure of desuperheat part desuperheating water need to be more than steam pressure, no
Then easily there is steam to pour in down a chimney.If high-pressure steam pressure is more than pressure of desuperheating water, the steaming of high pressure when Desuperheating device is opened
Vapour moment is flowed back in the desuperheat water installations of low-pressure, and Desuperheating device does not work, and Desuperheating device is damaged on the contrary, or even pacify
Full hidden danger.
Goal of the invention
The purpose of the present invention is directed to above-mentioned weak point and provides a kind of high pressure separate type temperature reducing system, it is allowed to any pressure
The desuperheating water of power is mixed with, with high degree of flexibility.Neutralizing flow can be by steam flow control element and desuperheat current
Amount control element double control, it is ensured that the stability of downstream steam temperature.Pressure of desuperheating water cannot be lifted in some installations and facilities
In the case of, the system can be very good to solve problems, without planning and designing again and procuring equipment.
The content of the invention
High pressure separate type temperature reducing system of the present invention takes following technical scheme to realize：
High pressure separate type temperature reducing system includes that high pressure separate type temperature reducing system includes decompressor, Desuperheating device, desuperheating water
Regulating valve, regulating valve, first manual stop valve, the second hand stop valve and filter；Regulating valve passes through first manual stop valve
Bypass is opened with upstream to be connected；It is connected by pipeline between regulating valve and Desuperheating device, coupling part is connected using flange,
90 ° of elbows of welding in the middle of pipeline；Leave desuperheating water suction flange in Desuperheating device middle part；
Main steam line is anterior to install decompressor, and decompressor front and back end is connected by reduced pipe with main pipeline, even
Place is met equipped with flange；
Desuperheating device support frame welding hole is provided with the pipeline in decompressor exit, Desuperheating device is inserted by support frame
Enter the pipeline in decompressor exit；Desuperheating device bottom is provided with the shower nozzle of control flow；
There are Desuperheating water regulating valve, filter and the second hand stop valve in Desuperheating device branch circuit outlet sequential concatenation.
Decompressor, Desuperheating water regulating valve and regulating valve are connected with executing agency respectively, and are respectively arranged with locator.
The decompressor is pressure-reducing valve.
The Desuperheating device and support frame are connected by bolt, nut.
Operation principle：High pressure separate type temperature reducing system of the present invention by the drainage to upstream high steam, to desuperheating water plus
Pressure, last and main steam mixing, reaches the purpose of control temperature.
Invention advantage：High pressure separate type temperature reducing system of the present invention, leads to drainage to upstream high steam, to desuperheating water plus
Pressure, last and main steam mixing, reaches the purpose of control temperature.The desuperheating water of any pressure is allowed to be mixed with, with height
Flexibility.Neutralizing flow can be by steam flow control element and attemperation water flow control element double control, it is ensured that downstream
The stability of vapor (steam) temperature.Cannot be lifted in some installations and facilities in the case of pressure of desuperheating water, the system can be very good to solve
Problems, without planning and designing again and procuring equipment.
Brief description of the drawings
Below with reference to accompanying drawing, the invention will be further described：
Fig. 1 is the framework schematic diagram of high pressure separate type temperature reducing system of the present invention.
In figure：1st, the second hand stop valve, 2, filter, 3, Desuperheating water regulating valve, 4, Desuperheating device, 5, decompressor,
6th, regulating valve, 7, first manual stop valve, 8, at high pressure drainage, 9, DCS remote control rooms.
Specific embodiment
Referring to the drawings 1, high pressure separate type temperature reducing system of the present invention includes that high pressure separate type temperature reducing system includes decompressor
5th, Desuperheating device 4, Desuperheating water regulating valve 3, regulating valve 6, first manual stop valve 7, the second hand stop valve 1 and filter 2；Adjust
Section valve 6 is opened bypass and is connected by first manual stop valve 7 and upstream；It is connected by pipeline between regulating valve 6 and Desuperheating device 4
Connect, coupling part using flange connect, in the duct between weld 90 ° of elbows；Leave desuperheat water inlet method in the middle part of Desuperheating device 4
It is blue；
Main steam line is anterior to install decompressor 5, and the front and back end of decompressor 5 is connected by reduced pipe with main pipeline,
Junction is equipped with flange；
Desuperheating device support frame welding hole is provided with the pipeline in the exit of decompressor 5, Desuperheating device 4 passes through support frame
The pipeline in insertion decompressor exit；The bottom of Desuperheating device 4 is provided with the shower nozzle of control flow；
There are Desuperheating water regulating valve 3, the hand stop valve of filter 2 and second in the branch circuit outlet sequential concatenation of Desuperheating device 4
1。
Decompressor 5, Desuperheating water regulating valve 3 and regulating valve 6 are connected with executing agency respectively, and are respectively arranged with locator.
The decompressor 5 is pressure-reducing valve.
The Desuperheating device 4 and support frame are connected by bolt, nut.
Specific embodiment：The detailed high steam separate type Desuperheating device of embodiments of the invention, upstream superheated steam leads to
Cross decompressor 5 and reduce to pressure required by downstream process, therefore 8 pressure is all the time than lower exit pressure at upstream high drainage
Height, 8 is drilling welding at upstream high drainage, to open under the normal operating conditions of first manual stop valve 7, if necessary to close
When, manual-lock.
High steam can be controlled by drainage at regulating valve 6, uninterrupted by regulating valve 6, and it can be many
Plant structure type and for example control valve, Venturi tube etc., effect is the quantity of steam for controlling to enter, and regulating valve 6 passes through locator
It is connected with DCS remote control rooms 9, realizes remote control and maintenance.
The steam of high pressure drainage mixes with desuperheating water in Desuperheating device 4, lifts pressure of desuperheating water, and filter 2 prevents impurity
Influence Desuperheating device 4.Desuperheating water regulating valve 3 is flow control element, acts on similar with regulating valve 6, is used to control desuperheat current
Amount.Desuperheating water regulating valve 3 and the particularly relevant property of regulating valve 6, each can individually control drainage steam and subtract according to design needs
Warm water.
Pressure of desuperheating water ratio, can be by drainage high pressure of the present invention by steam pressure also hour after the decompression of decompressor 5
Steam and new equipment need not be purchased.
When upstream vapor flow very little, Desuperheating water regulating valve 3 and regulating valve 6 control steam and attemperation water flow respectively,
Mix according to a certain percentage, mixed with outlet vapor again by Desuperheating device 4 after mixing, the control of regulating valve 6 purpose is to be lifted
Pressure of desuperheating water, it is ensured that pressure of desuperheating water is higher than outlet vapor pressure, makes Desuperheating device 4 normally use.Desuperheating water regulating valve 3 is controlled
Attemperation water flow processed, it is therefore intended that outlet steam temperature is controlled, its uninterrupted directly affects outlet steam temperature.
When upstream vapor flow becomes it is big when, Desuperheating water regulating valve 3 and regulating valve 6 according to setting need to control again steam and
The flow of desuperheating water, by DCS remote adjustments, is allowed to reach a new balance again.
Above-described embodiment its displaying be only some be likely to be used it is similar with production with realize the purpose of the present invention with
Feature, high pressure separate type Desuperheating device of the invention is cost-effective, embodies a kind of brand-new desuperheat thinking, and above-mentioned implementation is only
Only it is a specific manifestation of the invention, and is not construed as receiving the description limitation of embodiment.Because those skilled in the art can
Many simple modifications are carried out based on by the present invention and is changed, therefore the present invention will not be limited specific to structure, operation
And description, it is similar to suitably modified or equivalent within the scope of the appended claims.
Claims (3)
1. a kind of high pressure separate type temperature reducing system, it is characterised in that：The high pressure separate type temperature reducing system includes decompressor, subtracts
Warm device, Desuperheating water regulating valve, regulating valve, first manual stop valve, the second hand stop valve and filter；Regulating valve is by the
One hand stop valve is opened bypass and is connected with upstream；It is connected by pipeline between regulating valve and Desuperheating device, coupling part is adopted
Connected with flange, 90 ° of elbows are welded in the middle of the pipeline；Leave desuperheating water suction flange in Desuperheating device middle part；
Main steam line is anterior to install decompressor, and decompressor front and back end is connected by reduced pipe with main steam line, even
Place is met equipped with flange；
Desuperheating device support frame welding hole is provided with the pipeline in decompressor exit, Desuperheating device is inserted by support frame and subtracted
The pipeline in pressure device exit；Desuperheating device bottom is provided with the shower nozzle of control flow；
There are Desuperheating water regulating valve, filter and the second hand stop valve in Desuperheating device branch circuit outlet sequential concatenation；
Decompressor, Desuperheating water regulating valve and regulating valve are connected with executing agency respectively, and are respectively arranged with locator；
The locator is connected with DCS remote control rooms.
2. high pressure separate type temperature reducing system according to claim 1, it is characterised in that：The decompressor is pressure-reducing valve.
3. high pressure separate type temperature reducing system according to claim 1, it is characterised in that：The Desuperheating device and support frame are logical
Cross bolt, nut connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819246.1A CN104595721B (en) | 2014-12-25 | 2014-12-25 | High pressure separate type temperature reducing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819246.1A CN104595721B (en) | 2014-12-25 | 2014-12-25 | High pressure separate type temperature reducing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104595721A CN104595721A (en) | 2015-05-06 |
| CN104595721B true CN104595721B (en) | 2017-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410819246.1A Active CN104595721B (en) | 2014-12-25 | 2014-12-25 | High pressure separate type temperature reducing system |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812801A (en) * | 2019-01-25 | 2019-05-28 | 无锡卓尔阀业有限公司 | Self protection type's desuperheating water regulating device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202371451U (en) * | 2011-12-02 | 2012-08-08 | 杭州华惠阀门有限公司 | Cooling and depressurization system |
| CN203162545U (en) * | 2013-01-30 | 2013-08-28 | 杭州浙临阀门有限公司 | Pre-cooling type cooling and pressure reduction device |
| CN203203021U (en) * | 2013-03-07 | 2013-09-18 | 杭州杭辅电站辅机有限公司 | Steam water-pumping type steam desuperheater |
| CN203949150U (en) * | 2014-06-16 | 2014-11-19 | 国家电网公司 | A kind of for the main steam temperature intelligence control system of supercritical unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6178104B2 (en) * | 2013-04-19 | 2017-08-09 | 株式会社東芝 | Steam turbine piping and piping |
-
2014
- 2014-12-25 CN CN201410819246.1A patent/CN104595721B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202371451U (en) * | 2011-12-02 | 2012-08-08 | 杭州华惠阀门有限公司 | Cooling and depressurization system |
| CN203162545U (en) * | 2013-01-30 | 2013-08-28 | 杭州浙临阀门有限公司 | Pre-cooling type cooling and pressure reduction device |
| CN203203021U (en) * | 2013-03-07 | 2013-09-18 | 杭州杭辅电站辅机有限公司 | Steam water-pumping type steam desuperheater |
| CN203949150U (en) * | 2014-06-16 | 2014-11-19 | 国家电网公司 | A kind of for the main steam temperature intelligence control system of supercritical unit |
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| Publication number | Publication date |
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| CN104595721A (en) | 2015-05-06 |
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