CN103471416A - Exhaust steam recovery system - Google Patents
Exhaust steam recovery system Download PDFInfo
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- CN103471416A CN103471416A CN201310394297XA CN201310394297A CN103471416A CN 103471416 A CN103471416 A CN 103471416A CN 201310394297X A CN201310394297X A CN 201310394297XA CN 201310394297 A CN201310394297 A CN 201310394297A CN 103471416 A CN103471416 A CN 103471416A
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Abstract
The invention relates to an exhaust steam recovery system and belongs to the technical field of chemical devices. The exhaust steam recovery system comprises an exhaust steam recovery pump and a pressure regulating valve. A steam inlet assembly pipeline of the exhaust steam recovery pump is connected to a power station steam network. An expanding pipeline of the exhaust steam recovery pump is connected to a user side. A user side pipeline is connected to a flash tank. One pipeline of the flash tank is connected to an exhaust steam intake chamber of the exhaust steam recovery pump. The other pipeline of the flash tank is connected to a condensate recovery mechanism. The pressure regulating valve is controlled through a controller. The controller is in signal connection with a pressure transmitter used for detecting pressure of the pipeline between the exhaust steam recovery pump and the user side. The exhaust steam recovery system is simple in structure and reasonable in design; while heat energy of power station steam is not lost, steam from steam condensate is recovered, and pressure relief using relief valves causes waste of the steam from power stations in the prior art is avoided; based on 50t of daily steam consumption, about 300,000 Yuan of economic benefit can be produced yearly.
Description
Technical field
The invention belongs to the chemical plant installations technical field, be specifically related to a kind of dead steam recovery system.
Background technology
At present, along with the enforcement dynamics of national energy-saving consumption reduction policy strengthens gradually, start to occur that steam exhaust recovering device is for reclaiming exhaust steam.Existing steam exhaust recovering device all be take oil-sealed rotary pump extraction exhaust steam as main, although this class retracting device has reclaimed exhaust steam, has the following disadvantages: 1, will consume a large amount of electric energy and drive vavuum pump; 2, the efficiency of oil-sealed rotary pump is more fixing, does not possess automatic regulation function, and the steam consumption large enterprise of fluctuating can not be used; 3, maintenance cost is larger.
Summary of the invention
The problem existed for prior art, the object of the invention is to the technical scheme that design provides a kind of dead steam recovery system.
Described a kind of dead steam recovery system, it is characterized in that comprising exhaust steam recovery pump and pressure-regulating valve, the steam inlet assembly pipeline that pump is reclaimed in described exhaust steam connects power plant's steam pipe system, the convergent divergent channel pipeline that pump is reclaimed in described exhaust steam connects user side, described user side pipeline connects flash tank, described flash tank one road pipeline connects the exhaust steam suction chamber that pump is reclaimed in exhaust steam, another road pipeline connects condensed water recycle mechanism, described pressure-regulating valve is controlled by controller, described controller signals connects the pressure transmitter that reclaims loine pressure between pump and user side for detection of exhaust steam.
Described a kind of dead steam recovery system, it is characterized in that described exhaust steam recovery pump comprises steam inlet assembly, exhaust steam suction chamber, expansion trunnion and the convergent divergent channel connected successively, be equipped with the regulating spool of pressure-regulating valve in the assembly of described steam inlet, described regulating spool lower end is equipped with Laval nozzle.
Described a kind of dead steam recovery system, is characterized in that described user side comprises material tank in parallel, coupling tank and baking oven.
Described a kind of dead steam recovery system, it is characterized in that described condensed water recycle mechanism comprises the fluid level transmitter be arranged on flash tank, the water pump and the Liquid level adjusting valve that are connected with flash tank pipeline successively, described fluid level transmitter signal connects controller, described controller control connection water pump and Liquid level adjusting valve.
Above-mentioned a kind of dead steam recovery system, simple in structure, reasonable in design, native system is not in the situation that lose the heat energy of power plant's steam, not only reclaimed the steam in the steam condensate (SC), and avoid in prior art, by the pressure-reducing valve phenomenon that steam kinetic energy that power plant is come wastes that reduces pressure, with 50 tons of calculating of gas consumption every day, within 1 year, can producing the economic benefit of more than 300,000 yuan.
The accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention;
Fig. 2 is control principle drawing of the present invention;
Fig. 3 is that in the present invention, the pump structure schematic diagram is reclaimed in exhaust steam.
In figure: 1-material tank; 2-coupling tank; The 3-baking oven; The 4-flash tank; The 5-fluid level transmitter; The 6-water pump; The 7-Liquid level adjusting valve; Pump is reclaimed in the 8-exhaust steam; 801-steam inlet assembly; The 802-Laval nozzle; 803-exhaust steam suction chamber; 804-expands trunnion; The 805-convergent divergent channel; The 9-pressure-regulating valve; The 901-regulating spool; The 10-pressure transmitter; 11-power plant steam pipe system; The 12-user side; The 13-controller.
The specific embodiment
Further illustrate the present invention below in conjunction with Figure of description.
As shown in the figure, a kind of dead steam recovery system comprises exhaust steam recovery pump 8 and pressure-regulating valve 9, and pump 8 is reclaimed in exhaust steam and pressure-regulating valve 9 can be structure as a whole, and can be also Split connection structure.Exhaust steam is reclaimed pump 8 and is comprised steam inlet assembly 801, exhaust steam suction chamber 803, expansion trunnion 804 and the convergent divergent channel 805 connected successively, be equipped with the regulating spool 901 of pressure-regulating valve 9 in steam inlet assembly 801, regulating spool 901 lower ends are equipped with Laval nozzle 802, and Laval nozzle 802 runs through and is arranged on steam inlet assembly 801 and exhaust steam suction chamber 803.
The operation principle that pump 8 is reclaimed in exhaust steam is as follows: under adiabatci condition, the regulating spool 901 that the steam inlet assembly is 801 li is controlled working steam and is passed through Laval nozzle 802 with certain flow, pressure energy is converted into kinetic energy, enter diffusion trunnion 804 with supersonic speed, the suction chamber of exhaust steam simultaneously 803 pressure drops, form vacuum exhaust steam sucked; Exhaust steam enters diffusion trunnion 804 with working steam, working steam bumps, mixes in diffusion trunnion 804 with exhaust steam, carry out energy exchange, complete mixing, Speed Reduction is subsonic speed, subsonic air-flow further reduces in diffuser pipe 805 flowing velocities, and pressure increases gradually, reaches the required pressure of explained hereafter.
Flash tank 4 one road pipelines connect the exhaust steam suction chamber 803 that pumps 8 are reclaimed in exhaust steam, carry out steam and are recycled, and another road pipeline connects condensed water recycle mechanism, the condensed water that recovery can not flash distillation.Condensed water recycle mechanism comprises fluid level transmitter 5, water pump 6 and Liquid level adjusting valve 7, wherein fluid level transmitter 5 is arranged in flash tank 4, water pump 6 and Liquid level adjusting valve 7 pipeline successively are connected on flash tank 4, fluid level transmitter 5 signals connect controller 13, controller 13 control connection water pumps 6 and Liquid level adjusting valve 7.After adopting above-mentioned condensed water recycle mechanism, make level stability in flash tank 4 in best flash distillation scope.
During use, the 0.6Mpa steam of sending out from power plant's steam pipe system 11 enters exhaust steam from steam inlet assembly 801 and reclaims pump 8, control working steam at the regulating spool 901 of 801 li of steam inlet assemblies and pass through Laval nozzle 802 with certain flow, pressure energy is converted into kinetic energy, enter diffusion trunnion 804 with supersonic speed, the suction chamber of exhaust steam simultaneously 803 pressure drops, form vacuum exhaust steam sucked; Exhaust steam enters diffusion trunnion 804 with working steam, working steam bumps, mixes in diffusion trunnion 804 with exhaust steam, carry out energy exchange, complete mixing, Speed Reduction is subsonic speed, and subsonic air-flow further reduces in diffuser pipe 805 flowing velocities, and pressure increases gradually, reach the required 0.1MPa of explained hereafter～0.4 Mpa steam, then heating for user side 12.
The condensed water obtained after heating enters flash tank 4 and carries out flash distillation, and the steam that in flash tank 4, flash distillation obtains enters that pump 8 is reclaimed in exhaust steam and the steam acting in conjunction that enters from power plant's steam pipe system 11 is recycled, and condensed water that can not flash distillation enters condensed water recycle mechanism.
Simultaneously, exhaust steam is reclaimed the steam pressure in pipeline between pump 8 and user side 12 and is detected through pressure transmitter 10, and pressure signal is sent to controller 13, and controller 13 is sent to pressure-regulating valve 9 by the pressure inverted signal, makes loine pressure control setting value.Concrete control is as follows: according to pressure, control steam flow, when consumption is large, under controller 13 is controlled, the exhaust capacity of pump 8 is reclaimed in pressure-regulating valve 9 automatic adjustment height exhaust steam, pressure in pipeline is constant all the time, has avoided transmitting the problem that the data lagging influence is produced; When consumption is little, under controller 13 is controlled, pressure-regulating valve 9 is turned down the exhaust capacity that pump 8 is reclaimed in exhaust steam automatically, and the pressure in pipeline is constant all the time, can not have superpressure danger.
The liquid level of flash tank 4 detects through fluid level transmitter 5, and liquid level signal is sent to controller 13, and controller 13 is sent to water pump 6 and Liquid level adjusting valve 7 by the liquid level inverted signal, makes liquid level all-the-time stable in flash tank 4 in best flash distillation scope.
Take in actual production every day steam consumption approximately 50 tons be example, set up the laggard Ji benefit calculation of passing through of native system: every day, actual production was 19 hours: gas consumption 50 ÷ 19=2.63t/h per hour.User side 12 initial steam pressure 0.35MPa, the draining back pressure is got 0.3MPa, after flash tank 4 force value are got 0.10MPa(steam exhaust recovering device suction double evaporation-cooling vapour) its flash steam amount is: the difference ÷ latent heat of vaporization of liquid enthalpy=0.053,2.63 t/h * 5.3%=139t/h.Add the steam leaked in the drain valve hydrophobic process, actual recovered efficiency doubles.The steam price is assumed to be 200 yuan/tons, every day recovered steam economic benefit be: 0.139 ton/hour * 2 * 19 hours/day * 200 yuan/tons=1056 yuan/day; Annual production heating was calculated according to 300 days, 1056 yuan/day * 300 days=31.68 ten thousand yuan/year.As can be seen here, the economic benefit of this steam exhaust recovering device is considerable.
Shown in the above and figure is only the preferred embodiment of the present invention.It should be pointed out that for the person of ordinary skill of the art, under the premise without departing from the principles of the invention, can also make some modification and improvement, these also should be considered as belonging to protection scope of the present invention.
Claims (4)
1. a dead steam recovery system, it is characterized in that comprising exhaust steam recovery pump (8) and pressure-regulating valve (9), steam inlet assembly (801) pipeline that pump (8) is reclaimed in described exhaust steam connects power plant's steam pipe system (11), convergent divergent channel (805) pipeline that pump (8) is reclaimed in described exhaust steam connects user side (12), described user side (12) pipeline connects flash tank (4), described flash tank (4) one road pipelines connect the exhaust steam suction chamber (803) that pump (8) is reclaimed in exhaust steam, another road pipeline connects condensed water recycle mechanism, described pressure-regulating valve (9) is controlled by controller (13), described controller (13) signal connects the pressure transmitter (10) that reclaims loine pressure between pump (8) and user side (12) for detection of exhaust steam.
2. a kind of dead steam recovery system as claimed in claim 1, it is characterized in that described exhaust steam recovery pump (8) comprises steam inlet assembly (801), exhaust steam suction chamber (803), expansion trunnion (804) and the convergent divergent channel (805) connected successively, be equipped with the regulating spool (901) of pressure-regulating valve (9) in described steam inlet assembly (801), described regulating spool (901) lower end is equipped with Laval nozzle (802).
3. a kind of dead steam recovery system as claimed in claim 1, is characterized in that described user side (12) comprises material tank (1) in parallel, coupling tank (2) and baking oven (3).
4. a kind of dead steam recovery system as claimed in claim 1, it is characterized in that described condensed water recycle mechanism comprise the fluid level transmitter (5) that is arranged on flash tank (4), with flash tank (4) water pump (6) that pipeline is connected successively and Liquid level adjusting valve (7), described fluid level transmitter (5) signal connects controller (13), described controller (13) control connection water pump (6) and Liquid level adjusting valve (7).
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| CN201310394297.XA CN103471416B (en) | 2013-09-03 | 2013-09-03 | A kind of dead steam recovery system |
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| CN201310394297.XA CN103471416B (en) | 2013-09-03 | 2013-09-03 | A kind of dead steam recovery system |
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| CN103471416B CN103471416B (en) | 2015-08-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444143A (en) * | 2015-11-26 | 2016-03-30 | 中粮粮油工业(黄冈)有限公司 | Device for heating a hardening and tempering tower through exhaust steam generated by condensate water in pre-squeezing and leaching plant |
| CN105803719A (en) * | 2016-05-10 | 2016-07-27 | 福建省石狮热电有限责任公司 | Method for heating and setting by utilizing steam |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240909A (en) * | 2008-03-19 | 2008-08-13 | 清华大学 | Steam jet type heat pump heat distribution system for recovering thermal power plant condensing residual heat |
| CN201680354U (en) * | 2010-05-07 | 2010-12-22 | 上海毅知实业有限公司 | Steam condensate direct recycling device |
| CN102519069A (en) * | 2011-12-08 | 2012-06-27 | 北京中科华誉能源技术发展有限责任公司 | Multi-effect cascade jet type heat exchange based exhaust steam waste heat recovering and heat and power jointly producing system |
| CN103127738A (en) * | 2013-02-18 | 2013-06-05 | 陕西科技大学 | Double-layer flash tank |
| CN203454836U (en) * | 2013-09-03 | 2014-02-26 | 嘉兴科隆化工有限公司 | Waste steam recovery system |
-
2013
- 2013-09-03 CN CN201310394297.XA patent/CN103471416B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101240909A (en) * | 2008-03-19 | 2008-08-13 | 清华大学 | Steam jet type heat pump heat distribution system for recovering thermal power plant condensing residual heat |
| CN201680354U (en) * | 2010-05-07 | 2010-12-22 | 上海毅知实业有限公司 | Steam condensate direct recycling device |
| CN102519069A (en) * | 2011-12-08 | 2012-06-27 | 北京中科华誉能源技术发展有限责任公司 | Multi-effect cascade jet type heat exchange based exhaust steam waste heat recovering and heat and power jointly producing system |
| CN103127738A (en) * | 2013-02-18 | 2013-06-05 | 陕西科技大学 | Double-layer flash tank |
| CN203454836U (en) * | 2013-09-03 | 2014-02-26 | 嘉兴科隆化工有限公司 | Waste steam recovery system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444143A (en) * | 2015-11-26 | 2016-03-30 | 中粮粮油工业(黄冈)有限公司 | Device for heating a hardening and tempering tower through exhaust steam generated by condensate water in pre-squeezing and leaching plant |
| CN105803719A (en) * | 2016-05-10 | 2016-07-27 | 福建省石狮热电有限责任公司 | Method for heating and setting by utilizing steam |
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| CN103471416B (en) | 2015-08-19 |
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Address after: The new road bridge Nanhu District town of Jiaxing City, Zhejiang province 314004 No. 268 Patentee after: Zhejiang Kelong pigment Technology Co., Ltd. Address before: The new road bridge Nanhu District town of Jiaxing city of Zhejiang Province in 314004 Patentee before: Crown Chemical Co., Ltd. |
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Denomination of invention: Exhaust steam recovery system Effective date of registration: 20190724 Granted publication date: 20150819 Pledgee: Agricultural Bank of China Limited by Share Ltd Jiaxing science and Technology Branch Pledgor: Zhejiang Kelong pigment Technology Co., Ltd. Registration number: 2019330000206 |