CN206089065U - Novel urea heat source waste heat utilization system that hydrolysises - Google Patents
Novel urea heat source waste heat utilization system that hydrolysises Download PDFInfo
- Publication number
- CN206089065U CN206089065U CN201621038996.6U CN201621038996U CN206089065U CN 206089065 U CN206089065 U CN 206089065U CN 201621038996 U CN201621038996 U CN 201621038996U CN 206089065 U CN206089065 U CN 206089065U
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- China
- Prior art keywords
- urea
- heat
- thermal source
- dissolving tank
- hydrolyzes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model provides a novel urea heat source waste heat utilization system that hydrolysises, including an urea hydrolyzer, an urea dissolving tank and a drain trap, be equipped with a heat -transfer device on this urea dissolving tank, this heat -transfer device entrance point is through an upper reaches pipe connection the urea hydrolyzer, the exit end is through swimming the pipe connection once the drain trap. This system can effectively utilize the hydrophobic of urea hydrolyzer heating steam, realizes the utilization of energy ladder to high -quality heat source, improves the heat source utilization efficiency, has reduced energy loss, reduces hydrophobic emission.
Description
Technical field
The utility model is related to field of thermal power, and in particular to a kind of new urea hydrolyzes thermal source bootstrap system.
Background technology
Urea dissolving tank is denitrating system common equipment, for storing the urea liquid that dissolved, for urea hydrolyser or
Pyrolysis installation is used.Urea dissolving tank need to keep 30 DEG C of temperatures above, to ensure that the urea liquid being stored therein will not be crystallized.
Therefore thermal source need to carries out heat input to it, for balancing equipment radiating.
At present, power plant's auxiliary steam is to the thermal source of urea dissolving tank heating, steam parameter exists in 1MPa or so, temperature
300 DEG C or so, the steam is high-quality superheated steam, is high-quality thermal source.Can cause high-quality using power plant's auxiliary steam heating
The loss of thermal source, reduces power plant whole economic efficiency, while it is hydrophobic also to produce part, increases follow-up water process load.It is another
Aspect, urea hydrolyser heating steam drainage returns drain tank collection without reusing, directly, wastes hydrophobic heat.
Utility model content
To overcome above-mentioned deficiency, the utility model to provide a kind of new urea and hydrolyze thermal source bootstrap system, Ke Yiyou
Effect adds the hydrophobic of vapours using urea hydrolyser, realizes that energy ladder is utilized to high-quality thermal source, improves heat source utilization efficiency,
Energy loss is reduced, drain discharge amount is reduced.
To solve above-mentioned technical problem, the utility model is adopted the following technical scheme that：
A kind of new urea hydrolyzes thermal source bootstrap system, including a urea hydrolyser, a urea dissolving tank and one dredge
Water tank, on the urea dissolving tank heat-transfer device is provided with；The heat-transfer device entrance point connects the urine by a upstream line
Plain hydrolyzer, the port of export connects the drain tank by a downstream line.
Further, the heat-transfer device is arranged inside the urea dissolving tank.
Further, the upstream line is provided with flow meters.
Further, the upstream line is provided with an at least valve.
Further, the urea dissolving tank is provided with a temperature-detecting device.
Further, the downstream line is provided with a check-valves.
Further, the urea hydrolyser is also directly connected to drain tank by another pipeline, is provided with the pipeline
An at least valve.
The beneficial effects of the utility model are, arrange between urea hydrolyser, urea dissolving tank and drain tank pipeline (on
Play pipe road and downstream line), the pipeline connects urea hydrolyser and drain tank, but centre has to pass through urea dissolving tank, so
Urea hydrolyser can be enable to heat steam drainage heating urea dissolving tank；By heat-transfer device, heat transfer effect is greatly improved
Rate；Check-valves in downstream line, be prevented from it is hydrophobic enter upstream line from downstream line, but do not hinder dredging for upstream line
Water enters downstream line, hydrophobic heating urea solution is smoothed out.The system realizes that ladder is utilized to thermal source, improves thermal source
Utilization rate, and drain discharge is reduced, realize energy-saving and emission-reduction.
Description of the drawings
Fig. 1 is that a kind of new urea hydrolyzes thermal source bootstrap system schematic diagram in embodiment.
In figure：1- urea hydrolysers；2- urea dissolving tanks；3- drain tanks；4- heat-transfer devices；5- flowmeters；6- check-valves；
7- valves；L01- upstream lines；L02- downstream lines；Another pipelines of L1-.
Specific embodiment
To enable features described above of the present utility model and advantage to become apparent, special embodiment below, and coordinate appended
Figure is described in detail below.
The present embodiment provides a kind of new urea and hydrolyzes thermal source bootstrap system, as shown in figure 1, by urea hydrolyser 1,
Urea dissolving tank 2 and drain tank 3 are effectively integrated, and the urea using the steam drainage heating urea dissolving tank 2 of urea hydrolyser 1 is molten
Liquid, produces ammonia electric power supply plant denitrification apparatus and uses.In the present embodiment, steam source used by urea hydrolyser 1 requires 1.0MPa, temperature
200 DEG C of degree, steam consumption 1.5t/h or so, steam heat is 0.6～0.9MPa using the hydrophobic pressure of rear generation, and temperature is
165 DEG C～180 DEG C.Can be met completely using the hydrophobic heat in this part and the solution in urea dissolving tank 2 is incubated, together
When also have certain media remaining, unnecessary hydrophobic return drain tank 3 is collected.
One heat-transfer device 4 is set in urea dissolving tank 2, and the entrance point and the port of export of the heat-transfer device 4 is molten positioned at urea
The outside of solution tank 2, entrance point is connected by upstream line L01 with urea hydrolyser 1, and the port of export passes through downstream line L02
It is connected with drain tank 3, is connected by flange between port and pipeline.So design benefit be：One, heat-transfer device 4 can
Increase heat transfer efficiency；Two, only in the environment of urea liquid, it should possess waterproof, acid/alkali-corrosion-resistant to heat-transfer device 4,
Upstream and downstream pipeline L02 can be avoided to contact with urea liquid, it is not necessary to from having excessive demand to pipeline side's acid and alkali corrosion, it is cost-effective.
A temperature-detecting device (not shown) is provided with urea dissolving tank 2, can in real-time monitoring of tank urea liquid temperature
Degree, according to the temperature measures such as adjustment flow are implemented, and the viewable portion of temperature-detecting device is arranged at the side of urea dissolving tank 2
Face.Flow meters 5 are provided with upstream line L01, can in real-time detection pipeline steam drainage data on flows；If being additionally provided with
Dryvalve door 7, the species of valve 7 and model as needed depending on, according to flowmeter 5 and the data of temperature-detecting device, valve 7 is entered
Row switch and regulation, so as to ensure the normal operation of system, it is ensured that the temperature of urea liquid is in zone of reasonableness.
A check-valves 6 is provided with downstream line L02, be prevented from it is hydrophobic enter upstream line from downstream line, but not
The hydrophobic entrance downstream line of upstream line is hindered, hydrophobic heating urea solution is smoothed out.In addition, in urea hydrolyser
Another pipeline L1 is also connected between 1 and drain tank 3, the pipeline is provided with a valve 7, its role is to, when urea dissolving tank 2
When temperature is sufficiently high, it is not necessary to carry out heat supply by pipeline again, upstream line L01 is thus closed off, open connecting pipe L1, can
Steam drainage in urea hydrolyser 1 is delivered directly to by drain tank 3 by this pipeline, it is ensured that urea hydrolyser 1 is in normal
State.
From the foregoing, it will be observed that the system can enable urea hydrolyser heat steam drainage heating urea dissolving tank, to thermal source reality
Existing ladder is utilized, and improves thermal source utilization rate.Steamed using power plant's auxiliary compared to prior art and give the heating of urea dissolving tank, the system
Thermal source is not only made full use of, thermal source utilization rate is improved, and also reduces drain discharge amount, mitigate follow-up water process load.
Claims (7)
1. a kind of new urea hydrolyzes thermal source bootstrap system, it is characterised in that including a urea hydrolyser, urea dissolving
Tank and a drain tank, on the urea dissolving tank heat-transfer device is provided with；The heat-transfer device entrance point is connected by a upstream line
The urea hydrolyser is connect, the port of export connects the drain tank by a downstream line.
2. new urea according to claim 1 hydrolyzes thermal source bootstrap system, it is characterised in that the heat-transfer device
It is arranged inside the urea dissolving tank.
3. new urea according to claim 1 hydrolyzes thermal source bootstrap system, it is characterised in that the upstream line
It is provided with flow meters.
4. new urea according to claim 1 hydrolyzes thermal source bootstrap system, it is characterised in that the upstream line
It is provided with an at least valve.
5. new urea according to claim 1 hydrolyzes thermal source bootstrap system, it is characterised in that the urea dissolving
Tank is provided with a temperature-detecting device.
6. new urea according to claim 1 hydrolyzes thermal source bootstrap system, it is characterised in that the downstream line
It is provided with a check-valves.
7. new urea according to claim 1 hydrolyzes thermal source bootstrap system, it is characterised in that the hydrolysis of urea
Device is also directly connected to drain tank by another pipeline, and an at least valve is provided with the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038996.6U CN206089065U (en) | 2016-09-05 | 2016-09-05 | Novel urea heat source waste heat utilization system that hydrolysises |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621038996.6U CN206089065U (en) | 2016-09-05 | 2016-09-05 | Novel urea heat source waste heat utilization system that hydrolysises |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206089065U true CN206089065U (en) | 2017-04-12 |
Family
ID=58476007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621038996.6U Expired - Fee Related CN206089065U (en) | 2016-09-05 | 2016-09-05 | Novel urea heat source waste heat utilization system that hydrolysises |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206089065U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-09-05 CN CN201621038996.6U patent/CN206089065U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170412 Termination date: 20210905 |