CN203336126U - Heat tracing and washing system of urea solution conveying pipeline - Google Patents
Heat tracing and washing system of urea solution conveying pipeline Download PDFInfo
- Publication number
- CN203336126U CN203336126U CN2013204131116U CN201320413111U CN203336126U CN 203336126 U CN203336126 U CN 203336126U CN 2013204131116 U CN2013204131116 U CN 2013204131116U CN 201320413111 U CN201320413111 U CN 201320413111U CN 203336126 U CN203336126 U CN 203336126U
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- water
- heat tracing
- control module
- urea
- urea solution
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Abstract
The utility model provides a heat tracing and washing system of a urea solution conveying pipeline. The heat tracing and washing system of the urea solution conveying pipeline comprises a water supplying system, a heat tracing water cylinder, a heat tracing pipeline and a washing water pipe, wherein the water supplying system conveys warm water at proper temperature to the heat tracing water cylinder; an output port of the hot tracing water cylinder is connected with an input port of itself through the heat tracing pipeline, a heat tracing water pump and a valve to form a circulating loop, a branch stretched out of the heat tracing pipeline in a urea metering control module area serves as the washing water pipe, the washing water pipe is connected with an input port of a metering control module of the urea solution conveying pipeline, and a water draining pipe is connected with a sewage draining port of the metering control module to drain sewage out. The heat tracing and washing system of the urea solution conveying pipeline has the advantages that a heat tracing source of the urea solution long-distance conveying pipeline is stable and reliable, meanwhile, a washing system of the urea metering control module is simplified, and a reliable guarantee is provided for stable operation of a boiler flue gas denitration system.
Description
Technical field
The utility model relates to a kind of pipeline tracing technology, specifically a kind of companion's heat and flushing pipe of urea liquid conveyance conduit.
Background technique
When flue gas denitrification system adopts urea as reducing agent, the concentration of urea liquid is generally 50-60%, and the solidification point of 50% urea liquid is 16.7 ℃, and the urea liquid temperature starts to be hydrolyzed formation NH while surpassing 60 ℃
3and CO
2, affect security of system.So, need the stable and sufficient thermal source of configuration in the urea liquid course of conveying, the urea liquid temperature is controlled between 30-40 ℃.Urea liquid conveyance conduit tracing system, need to guarantee the stable temperature of urea liquid, avoids occurring urea liquid crystallization or overheated hydrolysis.When adopting steam pipe system to accompany when hot, the urea liquid conveyance conduit mainly has following problem: 1. adopt common single steam source of the gas to accompany when hot, for guaranteeing companion's thermal effect of system end, need to adopt than the steam of high parameter, and the steam of excessive temperature can cause urea liquid to be hydrolyzed in pipeline.2. adopt multiple spot source of the gas companion heat, can cause system steam supply point many, steam tracing need arrange separately drained water recovery system, whole steam tracing system pipeline complexity.Every unit urea pyrolysis system metering control module arranges separately a set of sparge water system, also can cause equipment investment many, system complex.In addition, the urea solution metering control module is the nucleus equipment of urea pyrolysis system, when pyrolysis system fault or stoppage in transit, need fully clean control module inside, so the sparge water pipeline need be set, introduces metering control module.
According to common design urea liquid pipeline, adopt the parallel laid steam line as companion's heat, metering control module arranges separately the sparge water pipeline.Suddenly there are six units in river power plant, if the sparge water pipeline is set separately, can cause whole denitrating system pipe-line system complexity, and the pipe laying distance, and consumed resource is large, does not meet energy-conservation requirement.
Summary of the invention
In order to solve deficiency of the prior art, the utility model provides a kind of companion's heat and rinse-system of new urea liquid conveyance conduit, and it is a kind ofly can provide the stable hot temperature of companion, and has the pipe-line system of pre-washing function concurrently.
The utility model adopts following technical proposals to complete:
A kind of companion's heat and rinse-system of urea liquid conveyance conduit, comprise water supply system, side het water's tank, TRACER road and wash tub pipe, and described water supply system is carried appropriate warm water to side het water's tank; The delivery outlet of side het water's tank is connected with the inlet opening of self through side het water's pump, valve by the TRACER road, forms circulation loop.Draw a branch road as wash tub pipe in urea metering TRACER road, territory, control module area, wash tub pipe is connected with the inlet opening of the metering control module of urea liquid conveyance conduit, and waste pipe is connected waste water is discharged with the sewage draining exit of metering control module.
Urea liquid hot water water tracing system has the following advantages:
1. accompany hot temperature stabilization, and easy to adjust.
2. the side het water recycles, and collects the urea liquid preparation tank, the storage tank heat device is hydrophobic, water saving.
3. the side het water draws branch road as the metering control module sparge water, has simplified system, reduces investment outlay, and easy access is safeguarded.
The accompanying drawing explanation
Fig. 1 is urea liquid feed status schematic diagram;
Fig. 2 is for rinsing view;
Fig. 3 is multiple target companion heat flush piping diagram;
In figure: water supply system 1, side het water's tank 2, side het water's pump 3, TRACER road 4, urea liquid conveyance conduit 5, wash tub pipe 6, metering control module 7, valve 8.
Embodiment
Below in conjunction with accompanying drawing, the utility model is illustrated: a kind of companion's heat and rinse-system of urea liquid conveyance conduit, comprise water supply system 1, side het water's tank 2, TRACER road 4 and wash tub pipe 6, described water supply system 1 is carried cold water to side het water's tank 2; Cold water is heated in side het water's tank 2; The delivery outlet of side het water's tank 2 is connected with the inlet opening of self through side het water's pump 3, valve 8 by TRACER road 4, forms circulation loop.Draw a branch road as wash tub pipe 6 in TRACER road, urea pipeline metering control module zone 4, wash tub pipe 6 is connected with the inlet opening of metering control module 7, and waste pipe is connected waste water is discharged with the sewage draining exit of metering control module 7.
TRACER road 4 laid with parallel being close to of urea liquid conveyance conduit 5, and outside insulation and the aluminium suitcase of adopting covers.TRACER road 4 prepares district with urea liquid conveyance conduit 5 from urea liquid and draws, near entering each unit boiler along support of pipelines, prepare district through along support of pipelines, returning to urea liquid again, side het water and urea liquid enter respectively heating water chamber and urea liquid storage tank.Form the circulatory system of a closure.This circulatory system is at boiler region division interface, and each boiler side het water and urea liquid pipeline are arranged in form arranged side by side.
A branch road access metering control module is drawn in the TRACER road in the metering control module zone.When metering control module need to rinse, Open valve is connected wash tub pipe and is rinsed 300 seconds, valve closing.
Because the side het water recycles, if system is not leaked, almost do not consume, metering control module is just just rinsed when equipment failure or system are stopped using, so the actual water usage of system seldom, consider that in addition pipe interior has hot water to exist for a long time, for avoiding pipeline scale, the side het water can design the use deionized water.
Water supply system adopts filler pipe road and steam line, and set temperature measuring device on side het water's tank is adjusted valve by steam line and controlled hot water temperature in tank.
As shown in Figure 3, the utility model can be simultaneously to a plurality of companion's heat, flushing working unit, and saving resource, have good using effect to greatest extent.
The design has solved the urea liquid long-distance transmission pipeline and has accompanied the reliable and stable problem of thermal source, has simplified urea metering control module rinse-system simultaneously, for boiler flue gas denitration system stable operation provides, can ensure.
Claims (1)
1. companion's heat and the rinse-system of a urea liquid conveyance conduit, it is characterized in that: it comprises water supply system, side het water's tank, TRACER road and wash tub pipe, and described water supply system is carried appropriate warm water to side het water's tank; The delivery outlet of side het water's tank is connected with the inlet opening of self through side het water's pump, valve by the TRACER road, forms circulation loop; Draw a branch road as wash tub pipe in urea metering TRACER road, territory, control module area, wash tub pipe is connected with the inlet opening of the metering control module of urea liquid conveyance conduit, and waste pipe is connected waste water is discharged with the sewage draining exit of metering control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204131116U CN203336126U (en) | 2013-07-04 | 2013-07-04 | Heat tracing and washing system of urea solution conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204131116U CN203336126U (en) | 2013-07-04 | 2013-07-04 | Heat tracing and washing system of urea solution conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203336126U true CN203336126U (en) | 2013-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204131116U Expired - Lifetime CN203336126U (en) | 2013-07-04 | 2013-07-04 | Heat tracing and washing system of urea solution conveying pipeline |
Country Status (1)
| Country | Link |
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| CN (1) | CN203336126U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089184A (en) * | 2014-06-26 | 2014-10-08 | 安徽淮化股份有限公司 | Method and device for preventing urea conveying pipeline from corrosion and crystallization in production of urea ammonium nitrate solution |
| CN105665343A (en) * | 2016-03-10 | 2016-06-15 | 北京新叶能源科技有限公司 | Online cleaning device and method for urea catalytic hydrolysis reaction device |
| CN106640291A (en) * | 2016-12-08 | 2017-05-10 | 青岛双瑞海洋环境工程股份有限公司 | Ship waste gas denitration system |
| CN106944427A (en) * | 2017-05-04 | 2017-07-14 | 重庆南方数控设备有限责任公司 | Esr analyzer cleaning device and the Wei Shi esr analyzers comprising the cleaning device |
| CN107051157A (en) * | 2017-04-24 | 2017-08-18 | 中国联合工程公司 | A kind of SNCR denitration reducing agent prepares Storing and conveying system and method |
| CN108758342A (en) * | 2018-08-17 | 2018-11-06 | 华能国际电力股份有限公司玉环电厂 | The flushing line of pyrolysis oven in a kind of denitrating system |
| CN110899260A (en) * | 2019-11-29 | 2020-03-24 | 四川金象赛瑞化工股份有限公司 | Liquid material conveying device |
| CN111720741A (en) * | 2020-06-30 | 2020-09-29 | 中国神华能源股份有限公司国华电力分公司 | Urea solution conveying equipment |
-
2013
- 2013-07-04 CN CN2013204131116U patent/CN203336126U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104089184A (en) * | 2014-06-26 | 2014-10-08 | 安徽淮化股份有限公司 | Method and device for preventing urea conveying pipeline from corrosion and crystallization in production of urea ammonium nitrate solution |
| CN104089184B (en) * | 2014-06-26 | 2017-06-20 | 安徽淮化股份有限公司 | It is a kind of to prevent the corrosion of urea feed-line and the method and apparatus for crystallizing in the production of urea ammonium nitrate solution |
| CN105665343A (en) * | 2016-03-10 | 2016-06-15 | 北京新叶能源科技有限公司 | Online cleaning device and method for urea catalytic hydrolysis reaction device |
| CN106640291A (en) * | 2016-12-08 | 2017-05-10 | 青岛双瑞海洋环境工程股份有限公司 | Ship waste gas denitration system |
| CN107051157A (en) * | 2017-04-24 | 2017-08-18 | 中国联合工程公司 | A kind of SNCR denitration reducing agent prepares Storing and conveying system and method |
| CN107051157B (en) * | 2017-04-24 | 2022-11-11 | 中国联合工程有限公司 | SNCR denitration reducing agent preparation, storage and conveying system and method |
| CN106944427A (en) * | 2017-05-04 | 2017-07-14 | 重庆南方数控设备有限责任公司 | Esr analyzer cleaning device and the Wei Shi esr analyzers comprising the cleaning device |
| CN108758342A (en) * | 2018-08-17 | 2018-11-06 | 华能国际电力股份有限公司玉环电厂 | The flushing line of pyrolysis oven in a kind of denitrating system |
| CN110899260A (en) * | 2019-11-29 | 2020-03-24 | 四川金象赛瑞化工股份有限公司 | Liquid material conveying device |
| CN111720741A (en) * | 2020-06-30 | 2020-09-29 | 中国神华能源股份有限公司国华电力分公司 | Urea solution conveying equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |