CN203336234U - Improved deaerator heating steam pressure stabilizing device - Google Patents
Improved deaerator heating steam pressure stabilizing device Download PDFInfo
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- CN203336234U CN203336234U CN2013202708896U CN201320270889U CN203336234U CN 203336234 U CN203336234 U CN 203336234U CN 2013202708896 U CN2013202708896 U CN 2013202708896U CN 201320270889 U CN201320270889 U CN 201320270889U CN 203336234 U CN203336234 U CN 203336234U
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Abstract
The utility model belongs to the improvement of boiler water deaerator heating steam pressure stabilizing device structure and particularly relates to an improved deaerator heating steam pressure stabilizing device. The improved deaerator heating steam pressure stabilizing device comprises a deaerator heating steam main tube connected with a steam pipeline, wherein the steam pipeline is connected with a pneumatic type adjusting valve through a first stop valve, the outlet of the pneumatic type adjusting valve is connected with a second stop valve through a pipeline, and the outlet of the second stop valve is connected with the deaerator heating steam main tube. According to the improved deaerator heating steam pressure stabilizing device, steam pressure of the deaerator heating steam main tube can be guaranteed to be stable, the water temperature of a deaerator can be high, and the deoxidizing effect of the deaerator can be good.
Description
Technical field
The utility model belongs to the improvement of boiler feed water oxygen-eliminating device heating steam stable-pressure device structure, particularly a kind of improved oxygen-eliminating device heating steam stable-pressure device.
Background technique
The application in metallurgy, Chemical Manufacture of the female pipe of heating steam regulator is very extensive.Two air blast operation areas, new district mainly utilize the steam-operating blower fan to the blast furnace air feed, the industrial steam turbine of steam-operating blower fan is got excited with the heat energy of boiler generation steam, steam-operating blower fan energy continuous and steady operation in order to ensure new district blast furnace air feed, the crucial factor of production is exactly the steam parameter that meets the industrial steam turbine operation that boiler can be supplied continous-stable, and boiler institute water is the demineralized water after oxygen-eliminating device heating deoxygenation, the oxygen-eliminating device operation conditions directly affects the boiler operatiopn life-span, so the operation conditions quality of oxygen-eliminating device is by remote-effects new district blast furnace air feed, oxygen-eliminating device is to utilize the thermal de-aeration principle that water inlet is heated to the corresponding saturation temperature of saturation pressure, thereby reduce oxygen-eliminating device water outlet oxygen content, the heating steam pressure of stablizing oxygen-eliminating device in heating process is vital.
Original oxygen-eliminating device steam pipeline (trace) and regulator heating power outer net steam carry out supplying with after step-down the female pipe of heating steam of oxygen-eliminating device by adjustable compression release valve.The subject matter existed: because steam source has two air blast operation area back pressure units or reducing-and-cooling plant, supply for the reducing-and-cooling plant in steam, power generation operation district the afterheat steam produced in steam and 120t converter smelting outward outward, wherein the outer of two air blast operation areas is to stablize the vapour source for the outer of steam and power generation operation district for steam, and the afterheat steam produced in the 120t converter smelting is relevant with same time smelting furnace number, it is a vapour source of fluctuating in time.New district steam user is stable except life with steam, the steam of blast furnace humidification and coking generation product use and production technology and product yield relation are larger, also unsettled, not only there is unsettled steam source in comprehensive Er Yan new district, and also has unsettled steam user, its acting in conjunction causes the vapor pressure of new district heating power outer net fluctuated, get back to the 0.55MPa left and right when pressure is low, get back to the 0.95MPa left and right when high, and the oxygen-eliminating device heating steam pressure only needs the 0.45MPa left and right to get final product, but need stable, original adjustable compression release valve adjusting function is poor, pressure after adjusting fluctuates with the pressure surge of heating power outer net, can't stablize, and on-the-spot human intervention number of times is more, increase labor intensity.Arrive the 0.10MPa left and right when pressure is low, arrive the 0.60MPa left and right when pressure is high, pressure causes oxygen-eliminating device heating steam quantity not sufficient when low, the oxygen-eliminating device water temperature only has 98 ℃ of left and right, do not reach saturated water temperature (100～104 ℃) and affected deaerating effect, when pressure is high, cause the female pipe of oxygen-eliminating device heating steam safety valve to play a steam discharge, to peripheral facilities, cause acoustic pollution and thermal source to pollute.
Summary of the invention
The purpose of this utility model is to provide a kind of improved oxygen-eliminating device heating steam stable-pressure device, can guarantee that oxygen-eliminating device heating steam manifold steam pressure is stable, makes the oxygen-eliminating device water temperature higher, and the deaerating effect of oxygen-eliminating device is good.
The purpose of this utility model is achieved in that a kind of improved oxygen-eliminating device heating steam stable-pressure device, comprise the female pipe of oxygen-eliminating device heating steam that steam pipework connects, steam pipework is connecting the pneumatic type modulating valve by the first stop valve, the outlet of pneumatic type modulating valve is connecting the second stop valve by pipeline, and the outlet of the second stop valve is connecting the female pipe of oxygen-eliminating device heating steam.
The utility model changes original adjustable decompressing control valve unit into the pneumatic type modulating valve.Get after valve in the PLC that force value input pneumatic type modulating valve carries and carry out difference calculating with required setup pressure value, and then carry out the difference adjusting, along with turning down to open automatically, the variation of upstream pressure guarantees that greatly oxygen-eliminating device heating steam main-piping pressure is stable, realize automatic regulation function, alleviate labor intensity, solved oxygen-eliminating device heating steam main-piping pressure unstable and affect the problem of oxygen-eliminating device deaerating effect.
Improvement effect: after the adjustable decompressing control valve unit changes the pneumatic type modulating valve into, through debugging and operational effect evaluation, oxygen-eliminating device heating steam main-piping pressure can be stabilized in 0.45 ± 0.02MPa left and right, and oxygen-eliminating device water temperature basic guarantee is 102 ℃ of left and right, except oxidation stability.
The utility model has realized that assurance oxygen-eliminating device heating steam manifold steam pressure is stable, makes the oxygen-eliminating device water temperature higher, and the deaerating effect of oxygen-eliminating device is good.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described, Fig. 1 is structural representation of the present utility model.
Embodiment
A kind of improved oxygen-eliminating device heating steam stable-pressure device, as shown in Figure 1, comprise the female pipe 2 of oxygen-eliminating device heating steam that steam pipework 1 connects, steam pipework 1 is connecting pneumatic type modulating valve 4 by the first stop valve 3, the outlet that the outlet of pneumatic type modulating valve 4 is connecting the second stop valve 5, the second stop valves 5 by pipeline is connecting the female pipe 2 of oxygen-eliminating device heating steam.At the steam pipework 1 that connects the first stop valve 3 imports and the bypass line that is being connected in parallel on the steam pipework that is connected the second stop valve 5 outlets, the 3rd stop valve 6 is installed on bypass line.
Claims (2)
1. improved oxygen-eliminating device heating steam stable-pressure device, comprise the female pipe of oxygen-eliminating device heating steam (2) that steam pipework (1) connects, it is characterized in that: steam pipework (1) is connecting pneumatic type modulating valve (4) by the first stop valve (3), the outlet of pneumatic type modulating valve (4) is connecting the second stop valve (5) by pipeline, and the outlet of the second stop valve (5) is connecting the female pipe of oxygen-eliminating device heating steam (2).
2. a kind of improved oxygen-eliminating device heating steam stable-pressure device according to claim 1, it is characterized in that: at the steam pipework (1) that connects the first stop valve (3) import and the bypass line that is being connected in parallel on the steam pipework that is connected the second stop valve (5) outlet, the 3rd stop valve (6) is installed on bypass line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202708896U CN203336234U (en) | 2013-05-17 | 2013-05-17 | Improved deaerator heating steam pressure stabilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202708896U CN203336234U (en) | 2013-05-17 | 2013-05-17 | Improved deaerator heating steam pressure stabilizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203336234U true CN203336234U (en) | 2013-12-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202708896U Expired - Fee Related CN203336234U (en) | 2013-05-17 | 2013-05-17 | Improved deaerator heating steam pressure stabilizing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203336234U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175623A (en) * | 2021-03-17 | 2021-07-27 | 河钢股份有限公司承德分公司 | Device and method for stably supplying metallurgical steam |
-
2013
- 2013-05-17 CN CN2013202708896U patent/CN203336234U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113175623A (en) * | 2021-03-17 | 2021-07-27 | 河钢股份有限公司承德分公司 | Device and method for stably supplying metallurgical steam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20140517 |