CN109296938A - A kind of steam transmission system - Google Patents
A kind of steam transmission system Download PDFInfo
- Publication number
- CN109296938A CN109296938A CN201811238713.6A CN201811238713A CN109296938A CN 109296938 A CN109296938 A CN 109296938A CN 201811238713 A CN201811238713 A CN 201811238713A CN 109296938 A CN109296938 A CN 109296938A
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- Prior art keywords
- steam
- valve
- transmission system
- electric control
- sub
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 25
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000006837 decompression Effects 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000010425 asbestos Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/06—Pipe-line systems for gases or vapours for steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pipeline Systems (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The present invention provides a kind of steam transmission systems, including steam main valve, the Trunk Line for steam conveying, the sub-cylinder and control device that are used for distributing steam to each workshop, one end of the Trunk Line is used for the main pipe line of external steam power plant's steam, and the end is equipped with the steam main valve, the other end is electrically connected with the sub-cylinder；The control device includes electric control valve, high-temp pressure sensor and display controller, the electric control valve is set on the Trunk Line, the high-temp pressure sensor is set on the sub-cylinder, and the electric control valve and high-temp pressure sensor are electrically connected with the display controller.The steam transmission system enables vapour pressure steadily to control in ± the 0.05MPa of setting value, and vapour pressure is stablized, and fluctuation range is small；Stability, the safety that steam uses are greatly improved, the waste of manual maintenance and steam is reduced.
Description
Technical field
The present invention relates to belong to chemical engineering device technique field more particularly to a kind of steam transmission system.
Background technique
Thermal power station after-heat steam is delivered to downstream by Trunk Line and respectively uses unit, and steam main valve is housed using unit, is risen
Control, cutting action, it is easy to repair.Afterheat steam is delivered in sub-cylinder after the effect of pressure reducing valve is reduced to required pressure,
Each workshop is redistributed to use.However, pressure reducing valve may fail, for safety, equipped with safety between pressure reducing valve and sub-cylinder
Valve, when pressure be more than setting value when can voluntarily take-off, be discharged steam, have reached decompression purpose.Some is additionally provided with by-passing valve, when subtracting
Press failure when, can manually opened by-passing valve, thus guarantee use safely steam.
However, current steam transmission system is but in several point defects: (1) the steam downstream user of power plant's supply is numerous, respectively
User is differed greatly per period using quantity of steam, and constituent parts steam pressure difference is caused to change greatly, daytime constituent parts all when in use,
Pressure may only have 0.6MPa, and pressure energy reaches 1.2MPa when night dosage is reduced, and current steam transmission system cannot basis
The difference of pressure needed for different periods and depressurized, cause resource that cannot reasonably distribute.(2) pressure reducing valve is usually machinery
, when steam-out (SO) pressure is relatively stable, the pressure after decompression is also relatively stable, when external pressure change is excessive, decompression
After may steam supply is insufficient or serious overcompression, will cause the frequent take-off of safety valve after superpressure, waste steam, safety valve is greatly reduced
Service life.(3) it is 0.6MPa that the reacting kettle jacketing of chemical company, which is typically designed pressure,, can be to life when pressure instability timing
Production causes very big influence, if steam pressure is more than collet design pressure, also will cause big safety accident.
It is therefore desirable to propose a kind of steam transmission system, to solve problem above.
Summary of the invention
It is an object of the invention to overcome the defect of the prior art, a kind of steam transmission system is provided, enables vapour pressure
It steadily controls in ± the 0.05MPa of setting value, vapour pressure is stablized, and fluctuation range is small；Greatly improve steam use it is steady
Qualitative, safety reduces the waste of manual maintenance and steam.
The present invention is implemented as follows:
The present invention provides a kind of steam transmission system, including steam main valve, for steam conveying Trunk Line, for distributing
One end of the sub-cylinder and control device that steam to each workshop uses, the Trunk Line is equipped with the steam main valve, the other end
It is electrically connected with the sub-cylinder；
The control device includes electric control valve, high-temp pressure sensor and display controller, the electric control valve
On the Trunk Line, the high-temp pressure sensor is set on the sub-cylinder, the electric control valve and high temperature pressure
Sensor is electrically connected with the display controller.
The invention has the following advantages:
A kind of steam transmission system provided by the invention, after being opened using the steam main valve of unit, the waste heat of steam power plant steams
In the sub-cylinder that vapour is delivered to downstream after the electric control valve in control device is reduced to required pressure by Trunk Line again
Distribution to each workshop uses, wherein the pressure of measurement is sent to display controller by high-temp pressure sensor, and display controller connects
To its automatic operation after by pressure data, drives electric control valve to be adjusted to required pressure, reach control purpose, so that
Vapour pressure can be controlled steadily in the ± 0.05MPa of setting value, and vapour pressure is stablized, and fluctuation range is small；Greatly improving steam makes
Stability, safety reduce the waste of manual maintenance and steam.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of structure chart of steam transmission system provided in an embodiment of the present invention；
Fig. 2 is a kind of structure chart for steam transmission system that the prior art provides；
1, steam main valve；2, Trunk Line；3, sub-cylinder；4, control device；41, electric control valve；42, high temperature pressure senses
Device；43, display controller；44, over pressure alarm device；45, manual switching valve；5, safety valve；6, bypass line；7, by-passing valve；8,
Pressure reducing valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the embodiment of the present invention provides a kind of steam transmission system, including steam main valve 1, convey for steam
Trunk Line 2, for distributing the sub-cylinder 3 and control device 4 that steam to each workshop uses, one end of the Trunk Line 2 is used
In the main pipe line of external steam power plant's steam, and the end is equipped with the steam main valve 1, and the other end is electrically connected with the sub-cylinder 3；
The control device 4 includes electric control valve 41, high-temp pressure sensor 42 and display controller 43, described electronic
Regulating valve 41 is set on the Trunk Line 2, and the high-temp pressure sensor 42 is set on the sub-cylinder 3, the motorized adjustment
Valve 41 and high-temp pressure sensor 42 are electrically connected with the display controller 43.
The embodiment of the present invention provides a kind of steam transmission system, eliminates mechanical relief valve in the prior art, is additionally arranged
The control device 4, after being opened using the steam main valve 1 of unit, the afterheat steam of steam power plant is by Trunk Line by control dress
It sets in the sub-cylinder for being delivered to downstream after the electric control valve 41 in 4 is reduced to required pressure, is redistributed to each workshop and uses,
In, the pressure of measurement is sent to display controller 43 by high-temp pressure sensor 42, after display controller 43 receives pressure data
To its automatic operation, drives electric control valve 41 to be adjusted to required pressure, reach control purpose, so that vapour pressure can be stablized
Ground controls in ± the 0.05MPa of setting value, and vapour pressure is stablized, and fluctuation range is small；Greatly improve stability that steam uses,
Safety reduces the waste of manual maintenance and steam.
Optimize above-described embodiment, as shown in Figure 1, being equipped with manual switching valve on the Trunk Line of the electric control valve two sides
45.Manual switching valve 45 can prevent the failure of electric control valve 42 from can not adjust.
Optimize above-described embodiment, as shown in Figure 1, being equipped with safety valve between the electric control valve and the sub-cylinder.Electricity
Dynamic regulating valve 42 may fail, and for safety, safety valve 5 is housed, when pressure is more than between electric control valve 42 and sub-cylinder 3
When setting value can voluntarily take-off, be discharged steam, have reached decompression purpose.
It is further preferable that being equipped with bypass line 6, the bypass line 6 between the steam main valve 1 and the safety valve 5
It is equipped with by-passing valve 7.When depressurizing failure, can manually opened by-passing valve, thus guarantee use safely steam.
Optimize above-described embodiment, as shown in Figure 1, the control device 4 further includes over pressure alarm device 44, the overpressure alarm
Device 44 is electrically connected with the display controller 43.
Specifically, as shown in table 1 below, the display controller 43 is the PID adjusting apparatus of ANTHONE model.The high temperature
Pressure sensor 42 is river instrument PDS403H-1DS1-D1DA/G71/G81.The model ZDLP- of the electric control valve 41
3810-C2-50-64-P4-F。
A kind of technical index of steam transmission system provided in an embodiment of the present invention: operating voltage 220VAC；Consumption
Power is not more than 200W；Electric control valve latus rectum DN125；Nominal pressure 1.6Mpa；- 20~200 DEG C of operating temperature (regulating valve)；
Superpressure quotation threshold value 0.85Mpa；Complete machine controls precision ± 0.03Mpa；
Regulating valve the key technical indexes: model specification: ZDLP-3810-C2-50-64-P4-F；Inside nominal diameter: 125mm；It is public
Claim pressure: 1.6Mpa；Flange Standard: JB/T79.1-94,79.2-94；Material: shell cast steel, spool stainless steel；Adaptive temperature:
230；Filler: polytetrafluoroethylene (PTFE), asbestos weaving filler, graphite packing；Spool form: single seat plunger piston type.
High-temp pressure sensor the key technical indexes: model: PDS403H-1DS1-D1DA/G71/G81；Measurement range:
1KPa-40MPa；Range ratio: 100:1；Output: 4~20mA；Medium temperature: -40~100；Degree of protection: IP67；It is explosion-proof etc.
Grade: Exia II CT6.
1 device configuration of table
The workflow process that the embodiment of the present invention provides a kind of steam transmission system is as follows:
Step 1, display controller 43 set required pressure value；
Step 2, high-temp pressure sensor 42 receive the pressure data of sub-cylinder, and pressure data are sent to display
Controller 43；
Pressure data is stored in and database and parses by step 3, display controller 43, by obtained pressure data with set
Definite value is compared, if pressure data is less than setting value, reduces the decompression dynamics of electric control valve, until vapour pressure is enabled to stablize
Ground controls in ± the 0.05MPa of setting value, so that steam supply is sufficient；If pressure data is greater than the set value, 44 meeting of over pressure alarm device
Warning reminding is carried out, display controller 43 will increase the decompression dynamics of electric control valve, until vapour pressure is enabled steadily to control
In ± the 0.05MPa of setting value, superpressure is avoided.If control device 4 breaks down, the safety valve 5 when pressure is more than setting value
Can voluntarily take-off, be discharged steam, have reached decompression purpose.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of steam transmission system, which is characterized in that including steam main valve, for steam conveying Trunk Line, for distributing
One end of the sub-cylinder and control device that steam to each workshop uses, the Trunk Line is equipped with the steam main valve, the other end
It is electrically connected with the sub-cylinder；
The control device includes electric control valve, high-temp pressure sensor and display controller, and the electric control valve is set to
On the Trunk Line, the high-temp pressure sensor is set on the sub-cylinder, the electric control valve and high temperature pressure sensing
Device is electrically connected with the display controller.
2. steam transmission system as described in claim 1, which is characterized in that on the Trunk Line of the electric control valve two sides
Equipped with manual switching valve.
3. steam transmission system as described in claim 1, which is characterized in that between the electric control valve and the sub-cylinder
Equipped with safety valve.
4. steam transmission system as claimed in claim 3, which is characterized in that set between the steam main valve and the safety valve
There is bypass line, the bypass line is equipped with by-passing valve.
5. steam transmission system as described in claim 1, which is characterized in that the control device further includes over pressure alarm device,
The over pressure alarm device is electrically connected with the display controller.
6. steam transmission system as described in claim 1, which is characterized in that the display controller is ANTHONE model
PID adjusting apparatus.
7. steam transmission system as described in claim 1, which is characterized in that the high-temp pressure sensor is river instrument
PDS403H-1DS1-D1DA/G71/G81。
8. steam transmission system as described in claim 1, which is characterized in that the model ZDLP- of the electric control valve
3810-C2-50-64-P4-F。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811238713.6A CN109296938A (en) | 2018-10-23 | 2018-10-23 | A kind of steam transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811238713.6A CN109296938A (en) | 2018-10-23 | 2018-10-23 | A kind of steam transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109296938A true CN109296938A (en) | 2019-02-01 |
Family
ID=65157608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811238713.6A Pending CN109296938A (en) | 2018-10-23 | 2018-10-23 | A kind of steam transmission system |
Country Status (1)
| Country | Link |
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| CN (1) | CN109296938A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203286284U (en) * | 2013-04-27 | 2013-11-13 | 河南中烟工业有限责任公司 | Automatic pressure regulation device for steam |
| CN203848000U (en) * | 2013-12-20 | 2014-09-24 | 罗林华 | Steam temperature and pressure reducing device |
| CN204496323U (en) * | 2015-04-07 | 2015-07-22 | 北京赛科康仑环保科技有限公司 | A kind of automatic control system for steam heater |
| CN107869363A (en) * | 2017-11-03 | 2018-04-03 | 唐山三友集团兴达化纤有限公司 | A kind of steam control system and method |
| CN209146733U (en) * | 2018-10-23 | 2019-07-23 | 襄阳金达成精细化工有限公司 | A kind of steam transmission system |
-
2018
- 2018-10-23 CN CN201811238713.6A patent/CN109296938A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203286284U (en) * | 2013-04-27 | 2013-11-13 | 河南中烟工业有限责任公司 | Automatic pressure regulation device for steam |
| CN203848000U (en) * | 2013-12-20 | 2014-09-24 | 罗林华 | Steam temperature and pressure reducing device |
| CN204496323U (en) * | 2015-04-07 | 2015-07-22 | 北京赛科康仑环保科技有限公司 | A kind of automatic control system for steam heater |
| CN107869363A (en) * | 2017-11-03 | 2018-04-03 | 唐山三友集团兴达化纤有限公司 | A kind of steam control system and method |
| CN209146733U (en) * | 2018-10-23 | 2019-07-23 | 襄阳金达成精细化工有限公司 | A kind of steam transmission system |
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