CN203728598U - Novel ammonia evaporation reboiler - Google Patents
Novel ammonia evaporation reboiler Download PDFInfo
- Publication number
- CN203728598U CN203728598U CN201420136554.XU CN201420136554U CN203728598U CN 203728598 U CN203728598 U CN 203728598U CN 201420136554 U CN201420136554 U CN 201420136554U CN 203728598 U CN203728598 U CN 203728598U
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- Prior art keywords
- partition
- oil
- dividing plate
- ammonia still
- pipe
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Abstract
The utility model discloses a novel ammonia evaporation reboiler, and relates to the technical field of coking residual ammonia treatment. A first partitioning plate is fixedly mounted on the top of a lower cylinder; the first partitioning plate and the lower cylinder are enclosed into an oil/gas chamber; the oil/gas chamber is connected with a heat conduction oil station or a heating station pipeline through an oil/gas inlet tube and an oil/gas outlet tube on the lower cylinder; a second partitioning plate is fixedly mounted on the upper surface of the first partitioning plate; an upper cylinder with a blind hole in the lower surface is fixedly mounted at the upper end of the second partitioning plate; the second partitioning plate and the upper cylinder are enclosed into a water chamber for containing ammonia evaporation wastewater; the water chamber is connected with an ammonia evaporation tower pipeline through a water inlet tube on the side wall of the upper cylinder; a plurality of heat tubes penetrate and are fixed on the first partitioning plate and the second partitioning plate; a steam pocket is connected with a water chamber pipeline; the steam pocket is connected with an ammonia evaporation tower bottom pipeline. By adopting the reboiler, the problem that oil and water are contaminated by each other is solved, and the phenomenon of blocking caused by oil and coke of the wastewater adhered to the walls of heat exchange tubes is avoided.
Description
Technical field
The utility model relates to residual coking ammonia water processing technology field, specifically a kind of novel ammonia still process reboiler.
Background technology
In the time processing the remained ammonia producing in process of coking, need in ammoniacal liquor, add alkali lye, remove the ammonia nitrogen in ammoniacal liquor through ammonia still process.At present, the mode of ammonia still process comprises thermal oil ammonia still process, indirect steam ammonia still process and tube furnace ammonia still process.Thermal oil ammonia still process and indirect steam ammonia still process are taking thermal oil or steam as thermal barrier, by waste water at the bottom of reboiler indirect heating ammonia still, make waste water be vaporizated into saturation steam, provide distillation heat at the bottom of returning to tower, thereby reduce discharging waste water.Traditional ammonia still process reboiler is shell and tube, and thermal oil or steam source are walked shell side, and waste water is walked tube side.Ammonia still process reboiler is placed in outside ammonia still and is connected by pipeline pipeline with ammonia still, and in ammonia still process process, tar and coke powder class material contained in distilled ammonia wastewater are subject to thermopolymerization, are attached to reboiler heat exchange tube wall, stops up reboiler when serious, and impact is produced.Once interchanger leaks, by causing the Composite pollution of thermal oil in reboiler or steam and waste water, increase wastewater flow rate, and then increase the cost of processing waste water, and be unfavorable for environment protection.
Utility model content
The purpose of this utility model is to provide a kind of novel ammonia still process reboiler, and the one, be subject to thermopolymerization for solving tar and the coke powder class material that waste water contains, be attached to the reboiler blockage problem that heat exchange tube wall causes; The 2nd, for solving thermal oil that heat exchanger leakage causes or the problem of steam and waste water Composite pollution.
The technical scheme in the invention for solving the technical problem is: a kind of novel ammonia still process reboiler, it is characterized in that, comprise upper shell, lower shell, the first dividing plate, second partition, heat pipe and drum, described lower shell is the cylindrical or square metalwork that upper surface is provided with blind hole, at the top of described lower shell fixed installation one first dividing plate, described the first dividing plate surrounds an oil/steam chest being connected with heat conduction petrol station or heating station pipeline with fuel-displaced/steam pipe by the oil-feed/steam pipe being positioned on lower shell sidewall with lower shell; Fixedly mount a second partition at described the first dividing plate upper surface, cylindrical or the square upper shell that a lower surface is provided with blind hole is fixedly mounted on the upper end of second partition, described second partition and upper shell surround the hydroecium that holds distilled ammonia wastewater, and described hydroecium is connected with ammonia still pipeline by the water inlet pipe being positioned on upper shell sidewall; Some heat pipes pass and are fixed on the first dividing plate and second partition, and a drum is connected with described hydroecium pipeline, and described drum is connected with ammonia still bottom tube road.
Further, described the first dividing plate and second partition are bolted.
Further, described upper shell is columniform stainless steel part, and described second partition is circular stainless steel part, and described upper shell and second partition are welded to connect.
Further, described lower shell is columniform carbon-steel parts, and described the first dividing plate is circular carbon-steel parts, and described upper shell and the first dividing plate are welded to connect.
Further, be fixed with a scum pipe being communicated with hydroecium in the bottom of described upper shell, and be provided with valve on described scum pipe.
Further, on described drum, be provided with liquidometer.
Further, be respectively equipped with the first through hole and second through hole of some radial distribution on described the first dividing plate and second partition, some described heat pipes are fixed in the first through hole and the second through hole.
Further, be respectively equipped with some the first through holes of arranging with box formation and the second through hole on described the first dividing plate and second partition, some described heat pipes are fixed in the first through hole and the second through hole.
The beneficial effects of the utility model are: the utility model at least has the following advantages:
(1) hot pipe technique is applied to coking ammonia still process reboiler, has realized the noncontact heat exchange of oil/steam chest and hydroecium, stopped to leak because of heat transfer tube the oil/vapour and the mutual pollution problem of water that cause;
(2) distilled ammonia wastewater changes into and in hydroecium, passes through adopting heat pipes for heat transfer by walk tube side in original shell and tube heat transfer tube, and scum pipe and valve are increased, avoid the contained oils of waste water and coke powder etc. to be heated and be attached to the latch up phenomenon that heat transfer tube inwall causes, improved heat exchange efficiency;
(3) oil/steam chest and hydroecium are separate, can adopt different materials, and oil/steam chest adopts carbon steel material, and hydroecium adopts corrosion resistant stainless steel, and cost is low;
(4) application of this reboiler does not change the technique of former ammonia steaming system, can be used as parts replacement, and flexible arrangement, applied range.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model;
In figure: 1 lower shell, 11 oil-feeds/steam pipe, 12 fuel-displaced/steam pipe, 21 first dividing plates, 22 second partitions, 3 upper shells, 31 water inlet pipes, 32 scum pipes, 33 first vapour pipes, 4 oil/steam chest, 5 hydroeciums, 6 bolt assemblies, 7 drums, 71 second vapour pipes, 8 heat pipes, 9 liquidometers.
Embodiment
As shown in Figure 1, the utility model comprises lower shell 1, the first dividing plate 21, second partition 22, upper shell 3, drum 7 and heat pipe 8.Lower shell 1 is provided with the cylindrical or square metalwork of blind hole for upper surface, at the top of lower shell fixed installation one first dividing plate 21, the first dividing plate 21 is square or circular metal sheet, the first dividing plate seals and forms one oil/steam chest 4 by the upper end of lower shell, and oil/steam chest is for temporarily depositing thermal oil or steam.Fixedly mount respectively one oil-feed/steam pipe 11 and fuel-displaced/steam pipe 12 in the upper and lower of lower shell sidewall, oil-feed/steam pipe and fuel-displaced/steam pipe are the pipe of carbon steel material, turnover one end of oil/steam pipe and the intracavity inter-connection of lower shell, the other end of turnover oil/steam pipe stretches out one section of lower shell, and for being connected with heat conduction petrol station or heating station pipeline.Oil-feed/steam pipe and fuel-displaced/steam pipe are the passages of thermal oil or steam turnover oil/steam chest, and thermal oil or steam can enter oil/steam chest by oil-feed/steam pipe.For convenience of manufacturing, lower shell, oil-feed/steam pipe and fuel-displaced/steam pipe can be one-body molded by the form of casting.Above the first dividing plate, be provided with a second partition 22, second partition is identical with the first diaphragm structure shape, on the first dividing plate and second partition, edge is circumferentially respectively equipped with some the first threaded holes and the second threaded hole, and some the first threaded holes and some the second threaded holes arrange respectively in pairs, the first dividing plate is fixedly connected with by bolt assembly 6 with second partition, and bolt assembly comprises bolt, nuts and washers.The lower surface of second partition contacts cooperation with the upper surface of the first dividing plate, fixedly mount a upper shell 3 at the upper surface of second partition, upper shell is the square or columniform metalwork that a lower surface is provided with blind hole, second partition is by the sealed bottom of upper shell and form a hydroecium 5, hydroecium is used for holding distilled ammonia wastewater, because waste water has corrodibility, therefore upper shell and second partition are stainless steel part.For convenience of waste water is poured in hydroecium, be provided with a water inlet pipe 31 on the top of hydroecium, water inlet pipe is stainless pipe, one end of water inlet pipe is communicated with hydroecium, the other end of water inlet pipe stretches out one section of upper shell, hydroecium is connected with at the bottom of ammonia still by water inlet pipe, pipeline and water pump, and the part waste water at the bottom of ammonia still is drawn in hydroecium through water pump.In waste water, contain the material such as oils and coke powder, be heated for a long time and can stick to hydroecium bottom, for ease of the waste water that contains oils and coke powder is discharged, be installed with a scum pipe 32 in the bottom of hydroecium, scum pipe is stainless pipe, one end of scum pipe is communicated with hydroecium, and the other end of scum pipe stretches out hydroecium, and on the scum pipe that stretches out hydroecium, valve is installed.
Also fixedly mounting one first vapour pipe 33, the first vapour pipes on the top of upper shell is stainless pipe, and one end of the first vapour pipe is communicated with hydroecium, and the first vapour pipe is the passage of vapour stream water-supplying chamber.One drum 7 is communicated with the first vapour pipe, and on drum, being communicated with one second vapour pipe 71, the second vapour pipes is the passage that steam flows out drum.On drum, be provided with liquidometer 9, to facilitate the balance of controlling steam output and flooding quantity in drum.On the first dividing plate and second partition, be also respectively equipped with some the first through holes and the second through hole, each first through hole and the second through hole are oppositely arranged, in the first through hole arranging in pairs and the second through hole, be installed with a heat pipe 8, the two ends of heat pipe extend into respectively in oil/steam chest and hydroecium, one section that stretches in oil/steam chest is heating zone, and one section that stretches in hydroecium is cooling section.Heat pipe is made up of shell, wick and end cap, will in pipe, be pumped into 1.3 × (10
-1～10
-4) fill with appropriate working liquid after the negative pressure of Pa, make to be close to after being full of liquid in the wick capillary porous material of inside pipe wall and sealed.Working liquid carburation by evaporation in the time that the heating zone of heat pipe is heated in heat pipe, steam flows to cooling section and emits heat and condense into liquid under small pressure reduction, and liquid flows back to heating zone along the effect of porous material capillary force again.So circulation, heat is just transmitted to cooling section by the heating zone of heat pipe.
In the time that thermal barrier is thermal oil, thermal oil from heat conduction petrol station enters into grease chamber through oil inlet pipe, the heating zone of heat pipe is heated, by the working liquid in heat pipe, heat is delivered to cooling section, heat pipe cooling section transfers heat to the waste water in hydroecium, waste water is heated and becomes steam and shwoot after the first vapour pipe enters drum, the low-pressure saturated steam that in drum, shwoot forms is for distillation provides heat at the bottom of the second vapour pipe returns to ammonia still tower, and the thermal oil after cooling returns to heat conduction petrol station circulating-heating through oil outlet pipe and uses.In the time that thermal barrier is steam, steam from heating station enters into steam chest through steam inlet pipe, the heating zone of heat pipe is heated, by the working liquid in heat pipe, heat is delivered to cooling section, heat pipe cooling section transfers heat to the waste water in hydroecium, waste water is heated and becomes steam and shwoot after the first vapour pipe enters drum, the low-pressure saturated steam that in drum, shwoot forms uses for distillation provides heat, the vapor condensation Cheng Shuijing steam outlet pipe after cooling to enter condensate water recovery device circulating-heating at the bottom of the second vapour pipe returns to ammonia still tower.Oil/steam chest and hydroecium are independent not to be communicated with, and the problem that oil/vapour of having avoided heat transfer tube to reveal causing and waste water pollute has mutually reduced the discharge capacity of waste water, has improved heat exchange efficiency.
The utility model, is applied to coking ammonia still process reboiler by hot pipe technique, has realized the noncontact heat exchange of oil/steam chest and hydroecium, has stopped to leak because of heat transfer tube the oil/vapour and the mutual pollution problem of water that cause; Oil/steam chest separates with hydroecium, and two Room can adopt different material manufactures, have extended equipment life, reduces investment.
Claims (8)
1. a novel ammonia still process reboiler, it is characterized in that, comprise upper shell, lower shell, the first dividing plate, second partition, heat pipe and drum, described lower shell is the cylindrical or square metalwork that upper surface is provided with blind hole, at the top of described lower shell fixed installation one first dividing plate, described the first dividing plate surrounds an oil/steam chest being connected with heat conduction petrol station or heating station pipeline with fuel-displaced/steam pipe by the oil-feed/steam pipe being positioned on lower shell sidewall with lower shell; Fixedly mount a second partition at described the first dividing plate upper surface, cylindrical or the square upper shell that a lower surface is provided with blind hole is fixedly mounted on the upper end of second partition, described second partition and upper shell surround the hydroecium that holds distilled ammonia wastewater, and described hydroecium is connected with ammonia still pipeline by the water inlet pipe being positioned on upper shell sidewall; Some heat pipes pass and are fixed on the first dividing plate and second partition, and a drum is connected with described hydroecium pipeline, and described drum is connected with ammonia still bottom tube road.
2. the novel ammonia still process reboiler of one according to claim 1, is characterized in that, described the first dividing plate and second partition are bolted.
3. the novel ammonia still process reboiler of one according to claim 1, is characterized in that, described upper shell is columniform stainless steel part, and described second partition is circular stainless steel part, and described upper shell and second partition are welded to connect.
4. the novel ammonia still process reboiler of one according to claim 1, is characterized in that, described lower shell is columniform carbon-steel parts, and described the first dividing plate is circular carbon-steel parts, and described upper shell and the first dividing plate are welded to connect.
5. the novel ammonia still process reboiler of one according to claim 3, is characterized in that, is fixed with a scum pipe being communicated with hydroecium, and is provided with valve in the bottom of described upper shell on described scum pipe.
6. the novel ammonia still process reboiler of one according to claim 1, is characterized in that, on described drum, is provided with liquidometer.
7. the novel ammonia still process reboiler of one according to claim 2, is characterized in that, is respectively equipped with the first through hole and second through hole of some radial distribution on described the first dividing plate and second partition, and some described heat pipes are fixed in the first through hole and the second through hole.
8. the novel ammonia still process reboiler of one according to claim 2, it is characterized in that, on described the first dividing plate and second partition, be respectively equipped with some the first through holes of arranging with box formation and the second through hole, some described heat pipes are fixed in the first through hole and the second through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136554.XU CN203728598U (en) | 2014-03-25 | 2014-03-25 | Novel ammonia evaporation reboiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136554.XU CN203728598U (en) | 2014-03-25 | 2014-03-25 | Novel ammonia evaporation reboiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203728598U true CN203728598U (en) | 2014-07-23 |
Family
ID=51198685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420136554.XU Expired - Fee Related CN203728598U (en) | 2014-03-25 | 2014-03-25 | Novel ammonia evaporation reboiler |
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| Country | Link |
|---|---|
| CN (1) | CN203728598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306525A (en) * | 2018-12-11 | 2020-06-19 | 华北电力大学 | Heat pipe type steam generator with spiral fins |
-
2014
- 2014-03-25 CN CN201420136554.XU patent/CN203728598U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111306525A (en) * | 2018-12-11 | 2020-06-19 | 华北电力大学 | Heat pipe type steam generator with spiral fins |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20190325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |