CN101597207B - Hot water natural circulating system of vinyl chloride synthesis reaction - Google Patents
Hot water natural circulating system of vinyl chloride synthesis reaction Download PDFInfo
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- CN101597207B CN101597207B CN 200910069560 CN200910069560A CN101597207B CN 101597207 B CN101597207 B CN 101597207B CN 200910069560 CN200910069560 CN 200910069560 CN 200910069560 A CN200910069560 A CN 200910069560A CN 101597207 B CN101597207 B CN 101597207B
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Abstract
The invention discloses a hot water natural circulating system of vinyl chloride synthesis reaction, comprising a vapor-liquid separating device communicated with a return water outlet of a converter; wherein, the vapor-liquid separating device is provided with a vapor outlet and a water outlet; the water outlet is communicated with an upper water gap of the converter; the vapor outlet is communicated with a hot water tower; the upper water gap of the converter is communicated with the hot water tower through a hot water pump; the vapor-liquid separating device is a horizontally arranged vapor-liquid separating pipeline which is connected with a plurality of parallel-connected converters. The system adopts a vapor-liquid separating pipe instead of a plurality of vapor-liquid separating tanks, and only one line is used for charging and overflow, thereby greatly saving the investment, simplifying equipment and line layout, realizing automatic control of charging, simplifying the operation, avoiding overheat of the converter, enhancing the production capacity of the single converter, guaranteeing stable production of the vinyl chloride conversion system, simultaneously reducing the consumption of the resources such as water and electricity and realizing maximization of the production benefit.
Description
Technical field
The present invention relates to a kind of natural cycle system of water, particularly a kind of hot water natural circulating system of vinyl chloride synthesis reaction.
Background technology
Vinylchlorid synthesizes thermopositive reaction; Reaction heat need be taken away through a large amount of circulating hot waters; Traditional technology is that the hot water bank through pump circulation walks heat, but because this technology power consumption and pure water consume morely, and is easy to generate vapour lock and makes circulating hot water can not lead to; Causing the convertor temperature to raise influences ordinary production, how to replace pump circulation with natural circulation at present.
See also Fig. 1, the structural representation of a kind of hot water natural circulating system of vinyl chloride synthesis reaction that adopts at present, 85 ℃ acetylene, chlorine hydride mixed gas 101 get into convertor 1 and carry out building-up reactions, form vinylchlorid synthetic gas 102.This system all is provided with a vapor-liquid separation tank 2 on hot water backwater's pipeline of every convertor 1.When system starts;, hot water pump 3 forms steam water interface 104 with pressure from water 112 in the driving of hot-water tower 4 after delivering into convertor 1 heat absorption; Steam water interface 104 enters in the vapor-liquid separation tank 2 and discharges; The steam 105 that goes out vapor-liquid separation tank 2 tops is taken away great amount of heat, obtains out the hot water 113 after vapor-liquid separation tank 2 bottoms lower the temperature, water 103 on the hot water of convertor 1 when hot water 113 converges the formation ordinary production with make up water 111.Steam 105 enters into the heat recovery and utilization that hot-water tower 4 can carry out part; For example: the backwater 107 of the hot water of other system is introduced from the top of hot-water tower 4; After in hot-water tower 4, heating up, obtain out water 110 on the hot water of this system of hot-water tower 4 bottoms with steam heat-exchanging.Take away portion water owing to go out the emptying steam 106 at hot-water tower 4 tops, therefore needed to replenish certain pure water 108.A moisturizing pipeline all is set on every convertor 1 hot water inlet pipeline supplies make up water 111 to pass through, make up water 111 comes from the bottom of hot-water tower 4, water 103 on the hot water of convertor 1 when the hot water 113 after pump delivery and cooling merges into ordinary production.Rate of water make-up is accomplished through manual operation.Each vapor-liquid separation tank top is equipped with upflow tube 5 simultaneously, avoids jar interior liquid level too high, and the vapor-liquid separation space is too little.This technology is compared with traditional technology and has been played the raising reaction efficiency, reduces power consumption, reduces the effect that pure water consumes.But this technology still has following deficiency:
(1) every convertor all increases vapor-liquid separation tank, and corresponding moisturizing and overflow line, more complicated on slave unit layout and the piping arrangement, and cost is also than higher;
(2) because the transformation efficiency of every convertor and inconsistent; The liquid level of each vapor-liquid separation tank all needs independent control, needs the valve on the continuous manual regulation moisturizing pipeline to guarantee the liquid level in the vapor-liquid separation tank, complex operation; The bad assurance of vapor-liquid separation effect, the convertor overheating problem still has generation.
Summary of the invention
The present invention provides a kind of hot water natural circulating system of vinyl chloride synthesis reaction for solving the technical problem that exists in the known technology, and this system has reduced facility investment effectively, has simplified the pipeline layout.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of hot water natural circulating system of vinyl chloride synthesis reaction; Comprise the vapor-liquid separating device that is communicated with the backwater outlet of convertor; Said vapor-liquid separating device is provided with steam outlet and water outlet; Said water outlet is communicated with the filling pipe end of convertor, and said steam outlet is communicated with hot-water tower, and the filling pipe end of said convertor is communicated with said hot-water tower through hot water pump; Said vapor-liquid separating device is horizontally disposed vapor-liquid separation pipeline, is connected with the said convertor of many parallel connections on the said vapor-liquid separation pipeline.
All be provided with one section liquid storage pipe on all water outlets of said vapor-liquid separation pipeline, every section liquid storage pipe is communicated with the filling pipe end of corresponding convertor.
Said vapor-liquid separation pipeline is provided with the moisturizing pipeline that is communicated with said hot-water tower, and said moisturizing pipeline is communicated with said hot water pump.
Any one section in said all liquid storage pipes is provided with liquid level warning interlocked control unit, the aperture of valve on the control moisturizing pipeline.
Said vapor-liquid separation pipeline is provided with the overflow spout that is communicated with said hot-water tower.
Advantage and positively effect that the present invention has are: adopt a vapor-liquid separation pipe to replace a plurality of vapor-liquid separation tanks, also shared one of moisturizing and overflow line have been saved investment greatly, have simplified equipment layout and pipeline and have arranged; Realize the robotization control of moisturizing, simplified operation, avoided the convertor overtemperature; Improved the throughput of separate unit convertor; Ensure the stably manufactured of vinylchlorid conversion system, reduced resource consumptions such as power and water simultaneously again, realized the maximization of productivity effect.
Description of drawings
Fig. 1 is a prior art constructions synoptic diagram of the present invention;
Fig. 2 is a structural representation of the present invention.
Among the figure: 1, convertor, 2, vapor-liquid separation tank, 3, hot water pump, 4, hot-water tower, 5, upflow tube; 6, vapor-liquid separation pipeline, 7, liquid storage pipe, 8, valve, 9, fluid level transmitter, 10, control unit; 101, gas mixture, 102, synthetic gas, 103, water on the hot water of convertor, 104, steam water interface; 105, steam, 106, emptying steam, 107, the backwater of the hot water of other system, 108, pure water; 110, water on the hot water of other system, 111, make up water, 112, water in the driving, 113, go out the hot water of vapor-liquid separating device.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, the following examples of giving an example now, and conjunction with figs. specifies as follows:
See also Fig. 2; A kind of hot water natural circulating system of vinyl chloride synthesis reaction comprises horizontally disposed vapor-liquid separation pipeline 6, and every convertor 1 all is provided with backwater outlet and the filling pipe end that is communicated with vapor-liquid separation pipeline 6; Vapor-liquid separation pipeline 6 is provided with steam outlet and water outlet; Steam outlet is communicated with hot-water tower 4, and water outlet is communicated with the filling pipe end of corresponding convertor, and the filling pipe end of every convertor is communicated with hot-water tower 4 through hot water pump 3.When system starts; Deliver into convertor 1 from water 112 in the driving of hot-water tower 4 through hot water pump 3; The present invention also can adopt and moisturizing structure of the prior art shown in Figure 1; A moisturizing pipeline all is set on every convertor 1 hot water inlet pipe road supplies make up water 111 to pass through, make up water 111 comes from the bottom of hot-water tower 4, water 103 on the hot water of convertor 1 when the hot water 113 after hot water pump 3 is carried and lowered the temperature merges into ordinary production.In this enforcement, the moisturizing structure is: vapor-liquid separation pipeline 6 is provided with the moisturizing pipeline that is communicated with said hot-water tower 4, and the moisturizing pipeline is communicated with hot water pump 3.Make up water 111 delivers into vapor-liquid separation pipeline 6 through hot water pump 3.Structure is simpler.The vapor-liquid separation pipeline is provided with an overflow spout 5 that is communicated with said hot-water tower.
The water outlet of vapor-liquid separation pipeline 6 is provided with one section liquid storage pipe 7, and every section liquid storage pipe 7 is communicated with the filling pipe end of corresponding convertor 1.
Any one section in the above-mentioned liquid storage pipe 7 is provided with the liquid level warning interlocked control unit of being made up of fluid level transmitter 9 and control unit 10, the aperture of valve 8 on the control moisturizing pipeline.
Two convertors that only schematically draw among Fig. 2 are many convertor parallel operations in the actual production, and the vapor-liquid separation pipe is that many convertors are shared, and its caliber becomes with unit scale and increases greatly.The platform number of convertor is relevant with unit scale and convertor specification, and general 200,000 tons of/year PVC devices are chosen 56 left and right sides convertors.
The present invention replaces in the prior aries vapor-liquid separation tank 2 on every convertor 1 at the public carbonated drink separating pipes 6 in many convertor top.These vapor-liquid separation pipe 6 horizontal positioned all have a pair of hot water circulation pipeline to be connected with every convertor 1; Keep certain liquid level in the vapor-liquid separation pipe 6, and all be provided with one section liquid storage pipe 7 on the water outlet that every convertor is communicated with, be used for guaranteeing certain liquid layer.Establish liquid level warning interlocked control unit on one section liquid storage pipe 7 therein, the aperture of control moisturizing pipeline valve 8 guarantees existing enough vapor-liquid separation spaces in the vapor-liquid separation pipe 6, and the liquid layer that the hot water natural circulation is got up is arranged again.Upflow tube 5 all is located on the vapor-liquid separation pipeline 6 with filling pipe.Through improvements over the prior art, guaranteed that the steam water interface that every convertor comes out all has enough vapor-liquid separation spaces, has solved the convertor overheating problem effectively; Adopt a vapor-liquid separation pipe to replace a plurality of vapor-liquid separation tanks, moisturizing and overflow line have also only kept one, have saved cost of investment greatly, have simplified equipment layout and pipeline and have arranged; Realize the robotization control of moisturizing simultaneously, simplified operation.
Technical process of the present invention:
During ordinary production, enter into from the steam water interface 104 of all convertors and to carry out vapor-liquid separation in the vapor-liquid separation pipe 6, steam 105 gets into hot-water tower 4 through same pipeline, and hot water 113 gets into convertor through corresponding liquid storage pipe 7 as last water respectively.Make up water 111 from hot-water tower 4 gets into vapor-liquid separation pipe 6 after hot water pump 3 pressurizations.The part identical with prior art shown in Figure 1 is this no longer tired stating.
Although combine accompanying drawing that the preferred embodiments of the present invention are described above; But the present invention is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, is not restrictive; Those of ordinary skill in the art is under enlightenment of the present invention; Not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (5)
1. hot water natural circulating system of vinyl chloride synthesis reaction; Comprise the vapor-liquid separating device that is communicated with the backwater outlet of convertor; Said vapor-liquid separating device is provided with steam outlet and water outlet, and said water outlet is communicated with the filling pipe end of convertor, and said steam outlet is communicated with hot-water tower; The filling pipe end of said convertor is communicated with said hot-water tower through hot water pump; It is characterized in that said vapor-liquid separating device is horizontally disposed vapor-liquid separation pipeline, be connected with the said convertor of many parallel connections on the said vapor-liquid separation pipeline.
2. hot water natural circulating system of vinyl chloride synthesis reaction according to claim 1 is characterized in that: all be provided with one section liquid storage pipe on all water outlets of said vapor-liquid separation pipeline, every section liquid storage pipe is communicated with the filling pipe end of corresponding convertor.
3. hot water natural circulating system of vinyl chloride synthesis reaction according to claim 2 is characterized in that: said vapor-liquid separation pipeline is provided with the moisturizing pipeline that is communicated with said hot-water tower, and said moisturizing pipeline is communicated with said hot water pump.
4. hot water natural circulating system of vinyl chloride synthesis reaction according to claim 3 is characterized in that: any one section in said all liquid storage pipes is provided with liquid level warning interlocked control unit, the aperture of valve on the control moisturizing pipeline.
5. hot water natural circulating system of vinyl chloride synthesis reaction according to claim 1 is characterized in that: said vapor-liquid separation pipeline is provided with the overflow spout that is communicated with said hot-water tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910069560 CN101597207B (en) | 2009-07-03 | 2009-07-03 | Hot water natural circulating system of vinyl chloride synthesis reaction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910069560 CN101597207B (en) | 2009-07-03 | 2009-07-03 | Hot water natural circulating system of vinyl chloride synthesis reaction |
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| CN101597207A CN101597207A (en) | 2009-12-09 |
| CN101597207B true CN101597207B (en) | 2012-01-25 |
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| CN 200910069560 Active CN101597207B (en) | 2009-07-03 | 2009-07-03 | Hot water natural circulating system of vinyl chloride synthesis reaction |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102371138B (en) * | 2010-08-12 | 2014-12-17 | 五冶集团上海有限公司 | Water test running method for benzene hydrogenation device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2053337A1 (en) * | 1970-10-30 | 1972-05-04 | Knapsack Ag, 5033 Knapsack | Vinyl chloride - catalytic prodn from acetylene and hydrogen chloride while saving hot steam and cooling water |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2053337A1 (en) * | 1970-10-30 | 1972-05-04 | Knapsack Ag, 5033 Knapsack | Vinyl chloride - catalytic prodn from acetylene and hydrogen chloride while saving hot steam and cooling water |
Non-Patent Citations (1)
| Title |
|---|
| 徐素霞.氯乙烯合成反应热水循环系统的改造.《中国氯碱》.2007,(第1期), * |
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