CN103062756A - Low-pressure steam recycling overheat control system - Google Patents
Low-pressure steam recycling overheat control system Download PDFInfo
- Publication number
- CN103062756A CN103062756A CN201310014528XA CN201310014528A CN103062756A CN 103062756 A CN103062756 A CN 103062756A CN 201310014528X A CN201310014528X A CN 201310014528XA CN 201310014528 A CN201310014528 A CN 201310014528A CN 103062756 A CN103062756 A CN 103062756A
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- Prior art keywords
- steam
- low
- pressure
- control system
- storage tank
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G5/00—Controlling superheat temperature
- F22G5/16—Controlling superheat temperature by indirectly cooling or heating the superheated steam in auxiliary enclosed heat-exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
- F01K3/14—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having both steam accumulator and heater, e.g. superheating accumulator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G1/00—Steam superheating characterised by heating method
- F22G1/16—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/005—Drying-steam generating means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a low-pressure steam recycling overheat control system. The system is characterized in that the system forms a low-pressure steam recycling overheat loop through a pressure container, a waste steam storage tank and a heat carrier boiler which are in sequential circulatory connection, low-temperature low-voltage steam discharged by the pressure container is concentratedly discharged into the waste steam storage tank and then supplied to the heat carrier boiler for secondary heating via the waste steam storage tank, and heated steam is redelivered to the pressure container for drying used heat media. The system is simple in operation of using the heat carrier boiler for secondary heating of the waste steam and tail gas discharged by the pressure container to the high-temperature state for recycling, achieves energy saving and consumption reduction, is less in investment in whole process equipment and small in land occupation and has great technical advantages.
Description
Technical field
The present invention relates to a kind of steam drying control system, refer in particular to a kind of waste vapour tail gas to pressure vessel base blowdown and carry out the steam drying control system that post bake is recycled again to the condition of high temperature.
Background technology
Usually need with hyperthermia and superheating steam in pressure vessel during material drying, there is following problem in the steam drying equipment that relates to: 1.. and the boiler pressure of producing superheated steam wants large, and equipment investment is high; 2.. the steam tail gas pressure of pressure vessel base blowdown is low, and temperature is low, is considered to not have drying capacity and is directly emitted, and has wasted a large amount of steam heat-transmission; 3.. the steam of oven dry usefulness all is by boiler water heating vaporization to be got, and steam consumption is large, and power consumption is high.
Summary of the invention
For problems of the prior art, the purpose of this invention is to provide a kind of low-pressure steam and reclaimed thermal control system.This control system can increase substantially its drying capacity, saves the steam consumption in the production process, thereby reaches energy-saving and cost-reducing purpose.
The present invention solves the technical scheme that its technical problem takes:
Low-pressure steam reclaimed thermal control system, and pressure vessel, waste vapour vapour storage tank, thermal medium boiler that this system connects by sequentially circulation consist of a low-pressure steam and reclaimed hot loop; The low temperature and low pressure steam of pressure vessel base blowdown is concentrated and is discharged in the waste vapour air accumulator, then passes through the waste vapour air accumulator to the thermal medium boiler air feed, carries out post bake, again flows to pressure vessel through the steam after the heating and does the used thermal medium of oven dry.
Further, the steam of thermal medium boiler remains on more than 0.05 MPa.
Further, the steam heat exchanging tube that is arranged in the thermal medium boiler is 15 chrome molybdenum steam heat exchanging tubes.
Further, be provided with a steam tail gas intake valve on the pipeline of pressure vessel connection waste vapour vapour storage tank, be provided with a steam tail gas air outlet valve and a steam tail gas bypass air outlet valve on the pipeline of waste vapour vapour storage tank connection thermal medium boiler, be provided with a superheated steam intake valve, a superheated steam bypass air outlet valve and an automatic blow off valve on the pipeline of thermal medium boiler Bonding pressure container.
Further, be provided with the condensate water floss hole on the described waste vapour vapour storage tank, this condensate water discharging is provided with drain valve.
Compared with prior art, the invention has the beneficial effects as follows:
Low-pressure steam of the present invention is crossed heat recovery system the low-pressure low-temperature steam of pressure vessel base blowdown is converted into the low-voltage high-temperature superheated steam with thermal medium boiler, make it have higher enthalpy, can increase substantially its drying capacity, thereby other steam consumption of saving in the production process reaches energy-saving and cost-reducing.By valve steam flow is carried out simple, sensitive, rapidly control, and then improve Systems balanth and security.The present invention with thermal medium boiler to the waste vapour tail gas of pressure vessel base blowdown carry out post bake to the condition of high temperature again recycle simple to operate, accomplished energy-saving and cost-reducingly, and whole technological equipment investment economizes, and takes up an area littlely, has very strong technical advantage.
Description of drawings
Fig. 1 is the structural representation that low-pressure steam of the present invention reclaims superheating system;
Fig. 2 is the structural representation of thermal medium boiler of the present invention.
The specific embodiment
As shown in Figure 1, it is to consist of a low-pressure steam by pressure vessel, waste vapour vapour storage tank, thermal medium boiler that sequentially circulation connects to reclaim hot loop that low-pressure steam reclaimed thermal control system, and described pressure vessel connection one provides the Industrial Boiler of hyperthermia and superheating steam to pressure vessel.The low temperature and low pressure steam of pressure vessel base blowdown is concentrated and is discharged in the waste vapour air accumulator, then passes through the waste vapour air accumulator to the thermal medium boiler air feed, carries out post bake, again flows to pressure vessel through the steam after the heating and does the used thermal medium of oven dry.Can reach more than 450 ℃ through the vapor (steam) temperature after the heating, and then again flow to pressure vessel or dryer and do the used thermal medium of oven dry.For guaranteeing the flowability of steam in the thermal medium boiler, the steam of thermal medium boiler must keep the above pressure of 0.05 MPa.
Be provided with steam tail gas intake valve 1 on the pipeline of pressure vessel connection waste vapour vapour storage tank of the present invention, be provided with steam tail gas air outlet valve 3 on the pipeline of waste vapour vapour storage tank connection thermal medium boiler, be provided with superheated steam intake valve 6 on the pipeline of thermal medium boiler Bonding pressure container.By the control to steam tail gas intake valve 1, steam tail gas air outlet valve 3 and superheated steam intake valve 6, accomplish the control to steam flow, also just can realize the control to the vapours temperature.Cooperate again the air force of thermal medium boiler Coal-fired capacity size and thermal medium boiler blower fan, make the control of whole system sensitiveer, rapidly, more convenient operation.
Also be provided with steam tail gas bypass air outlet valve 4 on the pipeline of waste vapour vapour storage tank connection thermal medium boiler of the present invention, also be provided with superheated steam bypass air outlet valve 7 on the pipeline of thermal medium boiler Bonding pressure container.Steam tail gas bypass air outlet valve 4 and superheated steam bypass air outlet valve 7 can excise the equipment that breaks down when some special circumstances occurring from system, and do not affect the miscellaneous equipment operation of system.
Be provided with the condensate water floss hole on the waste vapour vapour storage tank of the present invention, this condensate water discharging is provided with drain valve 2.From the waste vapour vapour storage tank, utilize the condensate water the steam tail gas drain valve 2 to discharge, reduce the water content in the steam, to reduce steam consumption.
As shown in Figure 2, the steam heat exchanging tube 8 that is arranged in the thermal medium boiler is 15 chrome molybdenum steam heat exchanging tubes, and this 15 chrome molybdenum pipe is high temperature resistant, corrosion-resistant, and safe heatproof can reach 800 ℃.
Also be provided with the automatic blow off valve 5 that the pipeline in a pair of system shields on the pipeline of thermal medium boiler Bonding pressure container of the present invention.This automatic blow off valve 5 occurs to stop up or fault at the steam heat exchanging tube 8 of thermal medium boiler or pressure vessel, can not normal exhaust, cause that heat exchanger tube pressure raises in the thermal medium boiler.When pressure was elevated to a certain degree, automatic blow off valve 5 was opened pressure release automatically, with protection thermal medium boiler and operating personnel's safety.
Above embodiment only for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of doing on the technical scheme basis all falls within the protection domain of the present invention.
Claims (9)
1. low-pressure steam reclaimed thermal control system, it is characterized in that: pressure vessel, waste vapour vapour storage tank, thermal medium boiler that this control system connects by sequentially circulation consist of a low-pressure steam and reclaimed hot loop; The low temperature and low pressure steam of pressure vessel base blowdown is concentrated and is discharged in the waste vapour air accumulator, then passes through the waste vapour air accumulator to the thermal medium boiler air feed, carries out post bake, again flows to pressure vessel through the steam after the heating and does the used thermal medium of oven dry.
2. low-pressure steam as claimed in claim 1 reclaimed thermal control system, it is characterized in that: the steam of thermal medium boiler remains on more than 0.05 MPa.
3. low-pressure steam as claimed in claim 1 or 2 reclaimed thermal control system, it is characterized in that: the steam heat exchanging tube that is arranged in the thermal medium boiler is 15 chrome molybdenum steam heat exchanging tubes.
4. low-pressure steam as claimed in claim 1 or 2 reclaimed thermal control system, it is characterized in that: be provided with a steam tail gas intake valve on the pipeline of pressure vessel connection waste vapour vapour storage tank, be provided with a steam tail gas air outlet valve and a steam tail gas bypass air outlet valve on the pipeline of waste vapour vapour storage tank connection thermal medium boiler, be provided with a superheated steam intake valve, a superheated steam bypass air outlet valve and an automatic blow off valve on the pipeline of thermal medium boiler Bonding pressure container.
5. low-pressure steam as claimed in claim 3 reclaimed thermal control system, it is characterized in that: be provided with a steam tail gas intake valve on the pipeline of pressure vessel connection waste vapour vapour storage tank, be provided with a steam tail gas air outlet valve and a steam tail gas bypass air outlet valve on the pipeline of waste vapour vapour storage tank connection thermal medium boiler, be provided with a superheated steam intake valve, a superheated steam bypass air outlet valve and an automatic blow off valve on the pipeline of thermal medium boiler Bonding pressure container.
6. low-pressure steam as claimed in claim 1 or 2 reclaimed thermal control system, it is characterized in that: be provided with the condensate water floss hole on the described waste vapour vapour storage tank, this condensate water discharging is provided with drain valve.
7. low-pressure steam as claimed in claim 3 reclaimed thermal control system, it is characterized in that: be provided with the condensate water floss hole on the described waste vapour vapour storage tank, this condensate water discharging is provided with drain valve.
8. low-pressure steam as claimed in claim 4 reclaimed thermal control system, it is characterized in that: be provided with the condensate water floss hole on the described waste vapour vapour storage tank, this condensate water discharging is provided with drain valve.
9. low-pressure steam as claimed in claim 5 reclaimed thermal control system, it is characterized in that: be provided with the condensate water floss hole on the described waste vapour vapour storage tank, this condensate water discharging is provided with drain valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310014528XA CN103062756A (en) | 2013-01-11 | 2013-01-11 | Low-pressure steam recycling overheat control system |
| PCT/CN2013/070561 WO2014107911A1 (en) | 2013-01-11 | 2013-01-16 | Low-pressure steam recovery superheating control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310014528XA CN103062756A (en) | 2013-01-11 | 2013-01-11 | Low-pressure steam recycling overheat control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103062756A true CN103062756A (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310014528XA Pending CN103062756A (en) | 2013-01-11 | 2013-01-11 | Low-pressure steam recycling overheat control system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103062756A (en) |
| WO (1) | WO2014107911A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014107912A1 (en) * | 2013-01-11 | 2014-07-17 | Cai Jingpeng | Low-pressure steam recovery superheating system |
| CN104949104A (en) * | 2014-03-31 | 2015-09-30 | 特电株式会社 | Superheated steam recycling apparatus and method for using same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115652457B (en) * | 2022-11-18 | 2023-05-26 | 中复神鹰碳纤维西宁有限公司 | Device for saving steam energy consumption in carbon fiber precursor production |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836865U (en) * | 2010-08-24 | 2011-05-18 | 舒城诚信包装材料有限公司 | Steam recovery device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2971597B2 (en) * | 1991-03-06 | 1999-11-08 | バブコック日立株式会社 | Waste heat recovery boiler |
| CN1208833A (en) * | 1997-08-18 | 1999-02-24 | 邓州卷烟厂 | Method for directly feeding waste steam into boiler for reutilization |
| CN202328147U (en) * | 2011-10-25 | 2012-07-11 | 王生成 | Industrial exhaust steam recycling system |
| CN202356093U (en) * | 2011-11-18 | 2012-08-01 | 山东兴辉化工有限公司 | Waste heat recovery device for etherification tank |
| CN203052639U (en) * | 2013-01-11 | 2013-07-10 | 蔡京鹏 | Low-pressure steam recovery overheating system |
-
2013
- 2013-01-11 CN CN201310014528XA patent/CN103062756A/en active Pending
- 2013-01-16 WO PCT/CN2013/070561 patent/WO2014107911A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201836865U (en) * | 2010-08-24 | 2011-05-18 | 舒城诚信包装材料有限公司 | Steam recovery device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014107912A1 (en) * | 2013-01-11 | 2014-07-17 | Cai Jingpeng | Low-pressure steam recovery superheating system |
| CN104949104A (en) * | 2014-03-31 | 2015-09-30 | 特电株式会社 | Superheated steam recycling apparatus and method for using same |
| CN104949104B (en) * | 2014-03-31 | 2019-05-14 | 特电株式会社 | Superheated steam reuse means and its application method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014107911A1 (en) | 2014-07-17 |
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Application publication date: 20130424 |