CN207451971U - Tetrachloroethanes gasification system and apply its trichloro ethylene production system - Google Patents
Tetrachloroethanes gasification system and apply its trichloro ethylene production system Download PDFInfo
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- CN207451971U CN207451971U CN201721444571.XU CN201721444571U CN207451971U CN 207451971 U CN207451971 U CN 207451971U CN 201721444571 U CN201721444571 U CN 201721444571U CN 207451971 U CN207451971 U CN 207451971U
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Abstract
The utility model provides a kind of tetrachloroethanes gasification system and applies its trichloro ethylene production system, is related to gasification system technical field.The tetrachloroethanes gasification system, the steam inlet pipeline connected including tetrachloroethanes gasifier and with tetrachloroethanes gasifier, condensed water water outlet pipeline, tetrachloroethanes inlet line and tetrachloroethanes outlet line, the gasification system directly carries out heat exchange as heating source using steam to tetrachloroethanes, it improves and promotion temperature during heat-conducting oil heating is used to be easy to cause high-boiling components accumulation in tetrachloroethanes gasifier in the prior art, shorten so as to cause the tetrachloroethanes gasifier service life time, and oil can change after conduction oil long-play, heat conductivility declines, heat transfer efficiency is caused to decline, the defects of tetrachloroethanes gasifier can be caused to block when serious.The utility model additionally provides trichloro ethylene production system, which uses above-mentioned tetrachloroethanes gasification system, realizes the reasonable utilization of the energy.
Description
Technical field
The utility model is related to gasification system technical fields, more particularly, to tetrachloroethanes gasification system and apply its three
Vinyl Chloride Production System.
Background technology
Trichloro ethylene is a kind of important organic chlorides, and the cleaning agent and freon for being mainly used for electronics industry substitute
Product.
At present, there are many preparation methods of trichloro ethylene, one of common preparation method is exactly that tetrachloroethanes is heated gas
After change, dehydrochlorination reaction device is sent into, is thermally decomposed to yield under the effect of the catalyst.Institute in existing tetrachloroethanes gasification
It is typically to be heated using conduction oil using gasifier, it is specific as shown in Figure 1：Conduction oil is squeezed into expansion slot 30, conduction oil
Conduction oil in storage tank 50 is squeezed into electric heater for heat conduction oil 40 by heat conduction oil circulating pump 60 and is heated, and tetrachloroethanes is entered after heating
Gasifier 10 returns to heat conduction oil eliminator 20, is then return to 60 import of heat conduction oil circulating pump after heat exchange.
In the process of running, since material changes, high-boiling components are gradually in tetrachloroethanes gas for tetrachloroethanes gasifier 10
Change accumulation in device 10, material boiling point is begun to ramp up in tetrachloroethanes gasifier 10.To ensure that evaporation capacity is unaffected, it is necessary to improve
The temperature of conduction oil, after heat conduction oil temperature improves, high-boiling components formation speed is accelerated in tetrachloroethanes gasifier 10, causes four chloroethenes
The 10 service life time of alkane gasifier shortens.In addition, growth of the conduction oil with run time, conduction oil oil can become
Change, the heat conductivility of conduction oil can decline, heat transfer efficiency is caused to decline, heat exchanger can be caused to block when serious.
In consideration of it, it is necessary to be studied to provide a kind of scheme.
Utility model content
The purpose of this utility model is to provide a kind of tetrachloroethanes gasification system, which is used as using steam adds
Heat source directly carries out heat exchange to tetrachloroethanes, improves and promotion temperature during heat-conducting oil heating is used easily to make in the prior art
High-boiling components are accumulated in into tetrachloroethanes gasifier, so as to cause the shortening of tetrachloroethanes gasifier service life time and heat conduction
Oil can change after oily long-play, heat conductivility declines, and heat transfer efficiency is caused to decline, four chloroethenes can be caused when serious
The defects of alkane gasifier blocks.
The purpose of this utility model is to provide a kind of trichloro ethylene production systems.
A kind of tetrachloroethanes gasification system provided by the utility model, including tetrachloroethanes gasifier and and tetrachloroethanes
Steam inlet pipeline, condensed water water outlet pipeline, tetrachloroethanes inlet line and the tetrachloroethanes outlet line of gasifier connection, institute
Tetrachloroethanes gasifier is stated to heat using steam；
Regulating valve is installed additional on the admission line to adjust steam flow or pressure, the condensed water water outlet pipeline passes through
Drain valve is connected with expansion slot, and the expansion slot is connected with liquid chlorine vaporizing station, and steam produces after exchanging heat in tetrachloroethanes gasifier
Raw condensed water is expelled to expansion slot by drain valve, and then is recycled to liquid chlorine vaporizing station by expansion slot and is recycled；
The tetrachloroethanes gasifier is connected by tetrachloroethanes outlet line with dehydrochlorination reaction device.
Further, on the basis of technical solution provided by the utility model, set outside the tetrachloroethanes gasifier
Chuck is equipped with, steam flows into chuck and tetrachloroethanes is heated.
Further, on the basis of technical solution provided by the utility model, set inside the tetrachloroethanes gasifier
Coil pipe is equipped with, steam flows into coil pipe and tetrachloroethanes is heated.
Further, on the basis of technical solution provided by the utility model, also set on the tetrachloroethanes gasifier
It is equipped with the thermometer for detecting internal temperature and the pressure gauge for detecting internal pressure.
Further, on the basis of technical solution provided by the utility model, through the tetrachloroethanes gasifier gasification
Tetrachloroethanes afterwards is delivered to the dehydrochlorination reaction device by the tetrachloroethanes outlet line and carries out cracking reaction, cracking
Byproduct hydrogen gas in reaction process is recycled to heating of the hydrogen gas boiler burning for steam via exhaust-valve.
Further, on the basis of technical solution provided by the utility model, the regulating valve for pneumatic control valve or
Person's electric control valve.
Further, on the basis of technical solution provided by the utility model, at the top of the tetrachloroethanes gasifier also
It is provided with safety valve.
Further, on the basis of technical solution provided by the utility model, the tetrachloroethanes inlet line and essence
Tower processed is connected, and the tetrachloroethanes after refining is delivered to the tetrachloroethanes gasifier.
Further, on the basis of technical solution provided by the utility model, the tetrachloroethanes gasifier inner surface
Coated with corrosion-resistant finishes.
The utility model additionally provides a kind of trichloro ethylene production system, including dehydrochlorination reaction device and above-mentioned four chloroethene
Alkane gasification system.
Compared with prior art, tetrachloroethanes gasification system provided by the utility model and system have following beneficial to effect
Fruit：
(1) tetrachloroethanes gasification system provided by the utility model, including tetrachloroethanes gasifier and and tetrachloroethanes
Steam inlet pipeline, condensed water water outlet pipeline, tetrachloroethanes inlet line and the tetrachloroethanes outlet line of gasifier connection, should
Gasification system directly carries out heat exchange as heating source using steam to tetrachloroethanes, improves and uses heat conduction in the prior art
Temperature is promoted during oil heating and be easy to cause high-boiling components accumulation in tetrachloroethanes gasifier, is used so as to cause tetrachloroethanes gasifier
Oil can change after cycle time shortening and conduction oil long-play, heat conductivility declines, and cause under heat transfer efficiency
The defects of dropping, tetrachloroethanes gasifier can be caused to block when serious.
(2) after using steam heating, tetrachloroethanes gasifier steams tetrachloroethanes gasification system provided by the utility model
Hair amount substantially rises, and tetrachloroethanes gasifier evaporation capacity is by transforming preceding 4.5m under equal conditions3/ h rises to 6.0m3/h；Four chloroethenes
Coking amount significantly reduces before relatively transforming in alkane gasifier, and it is every by being monthly reduced to for 2 times in the past that tetrachloroethanes gasifier cleans the frequency
Greatly reduce the workload of worker by the moon 1 time.
(3) tetrachloroethanes gasification system provided by the utility model, by the way that steam is exchanged heat in tetrachloroethanes gasifier
The condensing hot air furnace generated afterwards to liquid chlorine vaporizing station is used to prepare tetrachloroethanes, realizes reusing for low-pressure steam, reduces
The waste of the energy；In addition, by the way that the byproduct hydrogen gas in dehydrochlorination reaction device is recycled, it is allowed to burning and is steamed for heating
Hydrogen directly emptying compared to before improving is handled, reduces the pollution for environment, hydrogen is made to obtain effective and reasonable utilization by vapour.
(4) a kind of trichloro ethylene production system provided by the utility model, the system is using above-mentioned tetrachloroethanes gasification system
System has the advantage identical with above-mentioned tetrachloroethanes gasification system, realizes the reasonable utilization of the energy.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it describes below
In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other attached drawings are can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of tetrachloroethanes gasification system of the prior art；
Fig. 2 is the structure diagram of tetrachloroethanes gasification system provided by the utility model.
Icon：10- tetrachloroethanes gasifiers；20- heat conduction oil eliminators；30- expansion slots；40- electric heater for heat conduction oil；
50- conduction oil storage tanks；60- heat conduction oil circulating pumps；70- steam inlet pipelines；71- condensed water water outlet pipelines；80- tetrachloroethanes into
Mouth pipeline；81- tetrachloroethanes outlet lines；90- dehydrochlorination reaction devices；100- hydrogen gas boilers；110- liquid chlorine vaporizings station；701-
Regulating valve；711- drain valves.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet
Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality
Novel protected scope.
, it is necessary to explanation in the description of the utility model, the orientation of instructions such as term " on ", " under ", " centre " or
Position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description,
Rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and operation, because
This is it is not intended that limitation to the utility model.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition
Concrete meaning of the language in the utility model.
Tetrachloroethanes gasifier 10 is typically to be heated using conduction oil employed in existing gasification, specifically such as
Shown in Fig. 1：Conduction oil is squeezed into expansion slot 30, the conduction oil in conduction oil storage tank 50 squeezes into heat conduction by heat conduction oil circulating pump 60
Oily electric heater 40 heats, and into tetrachloroethanes gasifier 10 after heating, heat conduction oil eliminator 20 is returned after heat exchange, is then return to
60 import of heat conduction oil circulating pump.
In the process of running, since material changes, high-boiling components are gradually in tetrachloroethanes gas for tetrachloroethanes gasifier 10
Change accumulation in device 10, material boiling point is begun to ramp up in tetrachloroethanes gasifier 10.To ensure that evaporation capacity is unaffected, it is necessary to improve
The temperature of conduction oil, after heat conduction oil temperature improves, high-boiling components formation speed is accelerated in tetrachloroethanes gasifier 10, causes four chloroethenes
The 10 service life time of alkane gasifier shortens.In addition, growth of the conduction oil with run time, conduction oil oil can become
Change, the heat conductivility of conduction oil can decline, heat transfer efficiency is caused to decline, heat exchanger can be caused to block when serious.
To solve the above problems, one side according to the present utility model, provides a kind of tetrachloroethanes gasification system, it should
A part of the tetrachloroethanes gasification system as trichloro ethylene production system, it is specific as shown in Figure 2.
Tetrachloroethanes gasification system directly carries out heat exchange as heating source using steam to tetrachloroethanes, specifically includes
Tetrachloroethanes gasifier 10 and the steam inlet pipeline 70 connected with tetrachloroethanes gasifier 10, condensed water water outlet pipeline 71,
Tetrachloroethanes inlet line 80 and tetrachloroethanes outlet line 81.Tetrachloroethanes gasifier 10 passes through tetrachloroethanes outlet line 81
It is connected with dehydrochlorination reaction device 90.
Tetrachloroethanes is entered by tetrachloroethanes inlet line 80 inside tetrachloroethanes gasifier 10, tetrachloroethanes gasification
Device 10 directly carries out heat exchange as heating source using steam to tetrachloroethanes.Tetrachloroethanes after heat exchange is from four chloroethenes
Alkane gasifier 10 is discharged, and subsequent processing-dehydrochlorination reaction device 90 is entered by tetrachloroethanes outlet line 81, so as to carry out
The preparation of trichloro ethylene.
Regulating valve 701 is installed additional on steam inlet pipeline 70 to adjust steam flow or pressure.In order to improve degree of regulation,
Usually select the regulating valve 701 of equal percentage flow characteristic.
Preferably, regulating valve 701 is pneumatic control valve or electric control valve.It is further preferred that it can also adjust
Locator is installed additional on valve 701.
Preferably to detect the flow of steam and pressure, flowmeter and pressure gauge are additionally provided on steam inlet pipeline 70
(not identified in figure).
In steam pipe system, due to the difference of pipeline internal and external temperature, steam inevitably results from condensing in system
Water.Condensed water in system can generate pipe-line system huge harm.It such as generates water attack, destroys pipeline, therefore the utility model
In condensed water water outlet pipeline 71 on be provided with drain valve 711.
Drain valve 711 also known as steam trap, effect is the block steam and drain water on steam pipe line, at any time will be in steam pipe line
Condensation water is discharged without leaked steam.Preferably, drain valve 711 is steam automatic steam trap, and steam automatic steam trap is complete
It need not manual or executing agency.
It should be noted that drain valve 711 belongs to vulnerable part, therefore during use, drain valve should be inspected periodically
711 service condition.
Steam inlet pipeline 70 installs regulating valve 701 additional to adjust the quantity of steam into tetrachloroethanes gasifier 10；In order to fill
Divide using steam thermal energy, prevent energy waste, install steam trap additional on condensed water water outlet pipeline 71, steam is made to condense heel row completely
Go out tetrachloroethanes gasifier 10.
The gasification system directly carries out heat exchange as heating source using steam to tetrachloroethanes, improves the prior art
It is middle that high-boiling components accumulation in tetrachloroethanes gasifier 10 is be easy to cause using promotion temperature during heat-conducting oil heating, so as to cause four chloroethenes
Oil can change after the shortening of 10 service life time of alkane gasifier and conduction oil long-play, heat conductivility declines,
The defects of heat transfer efficiency is caused to decline, tetrachloroethanes gasifier 10 can be caused to block when serious.
Meanwhile the tetrachloroethanes gasification system is after using steam heating, on 10 evaporation capacity of tetrachloroethanes gasifier is apparent
It rises, 10 evaporation capacity of tetrachloroethanes gasifier is by transforming preceding 4.5m under equal conditions3/ h rises to 6.0m3/h；Tetrachloroethanes gasifier
Coking amount significantly reduces before relatively transforming in 10, and tetrachloroethanes gasifier 10 cleans the frequency by being monthly reduced to monthly 1 for 2 times in the past
It is secondary, greatly reduce the workload of worker.
It is specifically that acetylene gas is pressed with chlorine since the production of trichloro ethylene in the utility model is using chlorination of acetylene method
Generation tetrachloroethanes is reacted according to certain proportion, under the effect of the catalyst, thermal cracking obtains trichloro ethylene to tetrachloroethanes.Wherein,
Liquid chlorine vaporizing station 110 is mainly used for providing chlorine.
In order to rationally utilize steam energy, in the utility model by condensed water water outlet pipeline 71 by drain valve 711 with
Expansion slot 30 connects, and expansion slot 30 is connected with liquid chlorine vaporizing station 110.What steam generated in tetrachloroethanes gasifier 10 after heat exchange
Condensed water is expelled to expansion slot 30 by drain valve 711, and then is recycled to liquid chlorine vaporizing station 110 by expansion slot 30 and is cycled
Using being used to prepare tetrachloroethanes, and low-pressure steam re-utilizes.It can thus be seen that steam is applied not only to provide tetrachloro
Ethane gasification institute calorific requirement, and since the condensate liquid of its generation has certain temperature (high temperature condensate liquid), moreover it can be used to liquid
The gasification of liquid chlorine in chlorine gasification station 110, in addition low-pressure steam can also be utilized effectively, reduce the waste of the energy, can obtain
Preferable economic benefit.
Tetrachloroethanes gasifier 10 is the key component in tetrachloroethanes gasification system.The structure of tetrachloroethanes gasifier 10
It can be by diversified forms.According to the characteristic of steam and tetrachloroethanes, different heat exchange modes, corresponding tetrachloroethanes gas can be used
Changing device 10 has different structures, i.e. tetrachloroethanes gasifier 10 is internally provided with coil pipe, and steam is flowed into coil pipe to tetrachloro
Ethane is heated；Alternatively, be provided with chuck outside tetrachloroethanes gasifier 10, steam flow into chuck to tetrachloroethanes into
Row heating.
In the utility model, steam preferably walks shell side, convenient for discharge condensate liquid and fixed gas.Tetrachloroethanes is then corresponding
Walk tube side.
In order to preferably detect the temperature and pressure in tetrachloroethanes gasifier 10, also set on tetrachloroethanes gasifier 10
It is equipped with the thermometer for detecting internal temperature and the pressure gauge (not identified in figure) for detecting internal pressure.
In order to ensure the pressure medium in tetrachloroethanes gasifier 10 in rational scope, tetrachloroethanes gasifier 10 pushes up
Portion is additionally provided with safety valve (not identified in figure).
Further, 10 inner surface of tetrachloroethanes gasifier is coated with corrosion-resistant anti-corrosion protection coating.Using corrosion-resistant
Anti-corrosion protection coating so that tetrachloroethanes gasifier 10 has good corrosion resistance and superior heat resistance, can prolong
The service life of long tetrachloroethanes gasifier 10.
On above-mentioned technical proposal basis, tetrachloroethanes gasifier 10 is connected with dehydrochlorination reaction device 90.Through tetrachloro
Tetrachloroethanes after the gasification of ethane gasifier 10 is delivered to dehydrochlorination reaction device 90 by tetrachloroethanes outlet line 81 and carries out
Cracking reaction is to prepare trichloro ethylene.Byproduct hydrogen gas during cracking reaction is recycled to hydrogen gas boiler 100 via exhaust-valve
Burning is used for the heating of steam.The burner that byproduct hydrogen gas is input into 100 bottom of hydrogen gas boiler by pipeline burns, and generates
Heat the water in tubulation in hydrogen gas boiler 100 is heated, the steam of generation is used for tetrachloroethanes gasifier 10, extra
Part is incorporated to steam pipe network and reserves for other use.Hydrogen directly emptying is handled compared to before improving, reduces the pollution for environment, makes
Hydrogen obtains effective and reasonable utilization.
It should be noted that tetrachloroethanes is refined before tetrachloroethanes gasifier 10 is carried out, therefore four chloroethenes
Alkane inlet line 80 is connected with treating column, and the tetrachloroethanes after treating column is refined is delivered to tetrachloroethanes gasifier 10.
Other side according to the present utility model, additionally provides a kind of trichloro ethylene production system, which includes de-
Hcl reaction device 90 and above-mentioned tetrachloroethanes gasification system.
Dehydrochlorination reaction device 90 is sent into through tetrachloroethanes gasification system treated tetrachloroethanes, in the effect of catalyst
Under, tetrachloroethanes thermal cracking is thick trichloro ethylene and hydrogen chloride gas, then thick trichloro ethylene is refined, you can obtains product
Trichloro ethylene.
The system uses above-mentioned tetrachloroethanes gasification system, has the advantage identical with above-mentioned tetrachloroethanes gasification system,
Realize the reasonable utilization of the energy.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from this practicality newly
The scope of each embodiment technical solution of type.
Claims (10)
1. a kind of tetrachloroethanes gasification system, which is characterized in that including tetrachloroethanes gasifier and with tetrachloroethanes gasifier
Steam inlet pipeline, condensed water water outlet pipeline, tetrachloroethanes inlet line and the tetrachloroethanes outlet line of connection, the tetrachloro
Ethane gasifier is heated using steam；
Regulating valve is installed additional on the steam inlet pipeline to adjust steam flow or pressure, the condensed water water outlet pipeline passes through
Drain valve is connected with expansion slot, and the expansion slot is connected with liquid chlorine vaporizing station, and steam produces after exchanging heat in tetrachloroethanes gasifier
Raw condensed water is expelled to expansion slot by drain valve, and then is recycled to liquid chlorine vaporizing station by expansion slot and is recycled；
The tetrachloroethanes gasifier is connected by tetrachloroethanes outlet line with dehydrochlorination reaction device.
2. tetrachloroethanes gasification system according to claim 1, which is characterized in that set outside the tetrachloroethanes gasifier
Chuck is equipped with, steam flows into chuck and tetrachloroethanes is heated.
3. tetrachloroethanes gasification system according to claim 1, which is characterized in that set inside the tetrachloroethanes gasifier
Coil pipe is equipped with, steam flows into coil pipe and tetrachloroethanes is heated.
4. tetrachloroethanes gasification system according to claim 1, which is characterized in that also set on the tetrachloroethanes gasifier
It is equipped with to detect the thermometer of internal temperature and the pressure gauge of detection internal pressure.
5. tetrachloroethanes gasification system according to claim 1, which is characterized in that through the tetrachloroethanes gasifier gasification
Tetrachloroethanes afterwards is delivered to the dehydrochlorination reaction device by the tetrachloroethanes outlet line and carries out cracking reaction, cracking
Byproduct hydrogen gas in reaction process is recycled to heating of the hydrogen gas boiler burning for steam via exhaust-valve.
6. according to the tetrachloroethanes gasification system described in claim 1-5 any one, which is characterized in that the regulating valve is gas
Dynamic regulating valve or electric control valve.
7. according to the tetrachloroethanes gasification system described in claim 1-5 any one, which is characterized in that the tetrachloroethanes gas
Change and be additionally provided with safety valve at the top of device.
8. according to the tetrachloroethanes gasification system described in claim 1-5 any one, which is characterized in that the tetrachloroethanes into
Mouth pipeline is connected with treating column, and the tetrachloroethanes after refining is delivered to the tetrachloroethanes gasifier.
9. according to the tetrachloroethanes gasification system described in claim 1-5 any one, which is characterized in that the tetrachloroethanes gas
Change device inner surface and be coated with corrosion-resistant finishes.
10. a kind of trichloro ethylene production system, which is characterized in that any one including dehydrochlorination reaction device and claim 1-9
Tetrachloroethanes gasification system described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444571.XU CN207451971U (en) | 2017-11-02 | 2017-11-02 | Tetrachloroethanes gasification system and apply its trichloro ethylene production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721444571.XU CN207451971U (en) | 2017-11-02 | 2017-11-02 | Tetrachloroethanes gasification system and apply its trichloro ethylene production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207451971U true CN207451971U (en) | 2018-06-05 |
Family
ID=62253226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721444571.XU Active CN207451971U (en) | 2017-11-02 | 2017-11-02 | Tetrachloroethanes gasification system and apply its trichloro ethylene production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207451971U (en) |
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2017
- 2017-11-02 CN CN201721444571.XU patent/CN207451971U/en active Active
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