CN209146733U - A kind of steam transmission system - Google Patents
A kind of steam transmission system Download PDFInfo
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- CN209146733U CN209146733U CN201821722810.8U CN201821722810U CN209146733U CN 209146733 U CN209146733 U CN 209146733U CN 201821722810 U CN201821722810 U CN 201821722810U CN 209146733 U CN209146733 U CN 209146733U
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- steam
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Abstract
The utility model provides a kind of steam transmission system, 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 utility model 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.
Utility model content
The purpose of the utility model is to overcome the defects of the prior art, provide a kind of steam transmission system, so that vapour
Pressure energy steadily controls in ± the 0.05MPa of setting value, and vapour pressure is stablized, and fluctuation range is small；Greatly improve steam use
Stability, safety, reduce the waste of manual maintenance and steam.
The utility model is realized in this way:
The utility model provides a kind of steam transmission system, including steam main valve, for steam conveying Trunk Line, be used for
One end of the sub-cylinder and control device that distribution steam to each workshop uses, the Trunk Line is equipped with the steam main valve, separately
One 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
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 utility model has the following beneficial effects:
A kind of steam transmission system provided by the utility model, using unit steam main valve open after, steam power plant it is remaining
Hot steam is delivered to the sub-cylinder in downstream by Trunk Line after the electric control valve in control device is reduced to required pressure
In be redistributed to each workshop and use, wherein the pressure of measurement is sent to display controller, display control by high-temp pressure sensor
Device receives to drive electric control valve to be adjusted to required pressure to its automatic operation, reach control purpose after pressure data, thus
Vapour pressure is steadily controlled in ± the 0.05MPa of setting value, vapour pressure is stablized, and fluctuation range is small；Greatly improve steaming
Stability that vapour uses, safety, reduce the waste of manual maintenance and steam.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of structure chart of steam transmission system provided by the embodiment of the utility model；
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
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of steam transmission system, including steam main valve 1, it is used for steam
The Trunk Line 2 of conveying, for distributing the sub-cylinder 3 and control device 4 that steam to each workshop uses, the one of the Trunk Line 2
End is used for 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
It connects；
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 utility model embodiment provides a kind of steam transmission system, eliminates mechanical relief valve in the prior art, increases
If 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
In the sub-cylinder that electric control valve 41 in device 4 processed is delivered to downstream after reducing to required pressure, being redistributed to each workshop makes
With, wherein the pressure of measurement is sent to display controller 43 by high-temp pressure sensor 42, and display controller 43 receives number pressure
According to rear to its automatic operation, drive electric control valve 41 to be adjusted to required pressure, reach control purpose, so that vapour pressure energy
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.
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 by the embodiment of the utility model: operating voltage 220VAC；
It consumes power and is not more than 200W；Electric control valve latus rectum DN125；Nominal pressure 1.6Mpa；Operating temperature (regulating valve) -20~
200℃；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 utility model embodiment 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 above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
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 |
|---|---|---|---|
| CN201821722810.8U CN209146733U (en) | 2018-10-23 | 2018-10-23 | A kind of steam transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821722810.8U CN209146733U (en) | 2018-10-23 | 2018-10-23 | A kind of steam transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209146733U true CN209146733U (en) | 2019-07-23 |
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ID=67269360
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821722810.8U Active CN209146733U (en) | 2018-10-23 | 2018-10-23 | A kind of steam transmission system |
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| CN (1) | CN209146733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296938A (en) * | 2018-10-23 | 2019-02-01 | 襄阳金达成精细化工有限公司 | A kind of steam transmission system |
-
2018
- 2018-10-23 CN CN201821722810.8U patent/CN209146733U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296938A (en) * | 2018-10-23 | 2019-02-01 | 襄阳金达成精细化工有限公司 | A kind of steam transmission system |
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