CN217349206U - Liquid sulfur tank top waste gas treatment device of sulfur recovery device - Google Patents
Liquid sulfur tank top waste gas treatment device of sulfur recovery device Download PDFInfo
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- CN217349206U CN217349206U CN202220962859.0U CN202220962859U CN217349206U CN 217349206 U CN217349206 U CN 217349206U CN 202220962859 U CN202220962859 U CN 202220962859U CN 217349206 U CN217349206 U CN 217349206U
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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 discloses a sulfur recovery unit liquid sulfur tank deck exhaust treatment device, including independent liquid sulfur jar A, liquid sulfur jar B, liquid sulfur jar A, be connected with a cover tank deck waste gas line between liquid sulfur jar B top, it corresponds liquid sulfur jar A to press from both sides cover tank deck waste gas line, liquid sulfur jar B is connected with the branch road pipeline respectively, be connected with two valves on the branch road pipeline and be connected with venturi sprayer and manometer a between two valves, be connected with two cover tank deck waste gas lines that press from both sides that lead to sulfur recovery unit burns burning furnace after two branch road pipelines collect, be connected with two valves on the cover tank deck waste gas line and be connected with the eight characters blind plate between the valve, the check valve, moreover, the steam generator is simple in structure, high practicability, and low cost, economic benefits is high, storage tank pressure operation is stable.
Description
Technical Field
The utility model relates to a waste gas treatment device, more specifically say a bit, relate to a sulfur recovery unit liquid sulfur tank deck waste gas treatment device, belong to the petrochemical field.
Background
As shown in the figures 1 and 2, the design of the vault storage tank belongs to normal pressure, the design temperature is 170 ℃, and the operation temperature is about 125-; the storage medium is liquid sulfur with a density of 1799Kg/m 3. The liquid sulfur tank A and the liquid sulfur tank B are respectively connected with a DCS remote thermometer 3, a DCS remote pressure gauge 4, a liquid sulfur storage tank top vent 5, a DCS remote liquid level meter 6, a jacket low-pressure fire-fighting steam pipeline, an output pipeline and an inlet pipeline which are positioned at the bottom, and the liquid sulfur tank A and the liquid sulfur tank B are respectively internally provided with an electric heat tracing device 2 and other facilities; the liquid sulfur in the sulfur device liquid sulfur pool is degassed to remove hydrogen sulfide gas and then is sent to a liquid sulfur storage tank for storage, the storage tank keeps stable storage, and the redundant liquid sulfur is sent to wharf shipping or sulfur product delivery facilities through an outward sending pump to produce sulfur fixation. The conventional liquid sulfur storage tank has the potential safety and environmental protection hazards of fire explosion, equipment corrosion and environmental pollution in the operation process. In order to prevent the tank top from spontaneous combustion, ignition, corrosion damage of equipment and the like, an operator needs to regularly wear an air respirator and an explosion-proof tool to clean sulfur powder and corrosion deposits on the tank top. The waste gas at the top of the conventional liquid sulfur storage tank cannot be recycled in a closed manner, so that hydrogen sulfide, sulfur dioxide and sulfur vapor discharged from the top of the tank easily overflow, and the labor intensity of post operators is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the prior art problem, the utility model provides a sulfur recovery device liquid sulfur tank deck exhaust treatment device which has the technical characteristics of simple structure, strong practicability, reduced cost, high economic benefit, stable operation and the like.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
a sulfur recovery device liquid sulfur tank top waste gas treatment device comprises a liquid sulfur tank A and a liquid sulfur tank B which are independent, wherein a DCS remote transmission thermometer, a DCS remote transmission pressure gauge, a liquid sulfur tank top vent, a DCS remote transmission liquid level meter, a jacket low-pressure fire-fighting steam pipeline, an output pipeline and an inlet pipeline are connected to the liquid sulfur tank A and the liquid sulfur tank B respectively, an electric heat tracing device is arranged in each of the liquid sulfur tank A and the liquid sulfur tank B, a jacket tank top waste gas line is connected between the tops of the liquid sulfur tank A and the liquid sulfur tank B, the jacket tank top waste gas line is connected with a branch pipeline corresponding to the liquid sulfur tank A and the liquid sulfur tank B respectively, the branch pipeline is connected with two valves, a Venturi ejector and a pressure gauge a are connected between the two valves, an injection end of the Venturi ejector is connected with the branch pipeline, the two branch pipelines are connected with a second jacket tank top waste gas line leading to an incinerator after being converged, two valves are connected on the waste gas line of the tank top of the second jacket, and a splayed blind plate and a one-way valve are connected between the valves.
Preferably, every venturi ejector's entrance point is connected with the pipeline No. one, be connected with valve and manometer b on the pipeline No. one, No. one the pipeline is collected the back and is connected with the pipeline No. two, No. two pipeline entrance points insert and have medium pressure steam MS, be connected with control pipeline on No. two pipelines, control pipeline includes No. three pipelines and No. four pipelines of parallel connection, be connected with two valves on No. three pipelines and be connected with governing valve an between two valves, be connected with a valve on No. four pipelines.
Preferably, the inlet end of the control pipeline is connected with a DCS remote transmission flowmeter.
Preferably, the output pipeline is connected with a valve and a sulfuric acid delivery pump, and the inlet pipeline is connected with a valve and delivers the valve into the liquid sulfur through a sulfuric acid liquid sulfur pool.
Preferably, the jacket low-pressure fire steam pipeline is connected with fire steam LS, and the jacket low-pressure fire steam pipeline is connected with a valve and a regulating valve b.
Preferably, each valve is an electric valve and is connected to the DCS control system.
Preferably, the liquid sulfur tank A and the liquid sulfur tank B are respectively provided with two DCS remote thermometers, and the two DCS remote thermometers are respectively positioned at the upper part and the middle part.
Has the advantages that: the structure is simple, the practicability is strong, the cost is reduced, and the economic benefit is high; the waste gas on the top of the liquid sulfur storage tank is recycled in a sealed mode, through the control of the steam flow of the ejector, a micro-negative pressure state is achieved at the emptying port of the storage tank, and the pressure operation of the storage tank is stable; the method avoids the escape of hydrogen sulfide, sulfur dioxide and sulfur vapor discharged from the top of the tank, and eliminates the potential safety and environmental protection hazards of fire explosion, equipment corrosion and environmental pollution of the storage tank.
Drawings
Fig. 1 is a schematic structural view of a liquid sulfur tank a in the prior art of the present invention.
Fig. 2 is a schematic structural view of a liquid sulfur tank B in the prior art of the present invention.
Fig. 3 is a schematic view of the overall structure of the present invention.
FIG. 4 is a schematic diagram of a venturi ejector.
Detailed Description
The present invention will be further described with reference to the drawings attached to the specification, but the present invention is not limited to the following embodiments.
As shown in fig. 3-4, a specific embodiment of a liquid sulfur tank top waste gas treatment device of a sulfur recovery device is provided, which comprises an independent liquid sulfur tank a and an independent liquid sulfur tank B, the liquid sulfur tank a and the liquid sulfur tank B are both connected with a DCS remote thermometer 3, a DCS remote pressure gauge 4, a liquid sulfur tank top vent 5, a DCS remote liquid level meter 6, a jacket low-pressure fire-fighting steam pipeline, and an output pipeline and an inlet pipeline which are located at the bottom, and the liquid sulfur tank a and the liquid sulfur tank B are both provided with an electric heat tracing device 2, which is characterized in that: a first jacket tank top waste gas line 8 is connected between the tops of the liquid sulfur tank A and the liquid sulfur tank B, the first jacket tank top waste gas line 8 is connected with branch pipelines corresponding to the liquid sulfur tank A and the liquid sulfur tank B respectively, the branch pipelines are connected with two valves, a Venturi ejector 12 and a pressure gauge a11 are connected between the two valves, the ejection end of the Venturi ejector 12 is connected with the branch pipelines, the two branch pipelines are converged and then connected with a second jacket tank top waste gas line 8.1 leading to a sulfur recovery device incinerator, the second jacket tank top waste gas line 8.1 is connected with two valves, a splayed blind plate 13 and a one-way valve 14 are connected between the valves, the inlet end of each Venturi ejector 12 is connected with a first pipeline, the first pipeline is connected with a valve and a pressure gauge B11.1, the first pipeline is converged and then connected with a second pipeline, and the second pipeline is connected with medium-pressure steam MS, the pipeline II is connected with a control pipeline, the control pipeline comprises a pipeline III and a pipeline IV which are connected in parallel, the pipeline III is connected with two valves, a regulating valve a10 is connected between the two valves, and the pipeline IV is connected with a valve.
Normally using electric tracing (electric tracing on the tank wall and the tank top of the liquid sulfur storage tank), controlling the temperature of each point of the liquid sulfur tank A and the liquid sulfur tank B to be 140 ℃ plus 125 ℃, ensuring that the sulfur in the liquid sulfur tank A and the liquid sulfur tank B is constantly in liquid flow state solid (melting point of solid sulfur is 112 ℃ plus 119 ℃) and detection instruments such as a DCS remote transmission liquid level meter 6 and a DCS remote transmission pressure meter 4 do not generate solidification blockage phenomenon, ensuring that the interior of the storage tank is constantly in normal pressure state during the process of receiving and paying materials by the liquid sulfur tank A and the liquid sulfur tank B through a plurality of tank top vent holes 5, and ensuring that the interior of the storage tank is constantly in normal pressure state during the process of receiving and paying materials by the liquid sulfur tank A and the liquid sulfur tank B, wherein the tank top waste gas treatment device of the liquid sulfur storage tank comprises: the high-pressure 1.3MPa steam is used as working fluid (power end), the steam is expanded in absolute pressure through a special nozzle in a Venturi ejector, the pressure is continuously reduced, the speed is continuously improved, supersonic speed is achieved at the outlet of the nozzle, certain vacuum is formed, low-pressure injection fluid (tank top sulfur steam) is sucked, the low-pressure injection fluid and the low-pressure injection fluid enter a mixing chamber, energy and momentum are exchanged, and balance is achieved. The supersonic mixed fluid in the ejector generates shock wave in the mixing chamber, so that the mixed fluid is compressed, the pressure is increased, and the flow speed is reduced to subsonic speed. After the mixed fluid enters the diffusion chamber, the flow rate is further reduced, the pressure is continuously increased, the mixed fluid is finally discharged out of the diffusion chamber by overcoming the pressure at the outlet of the diffusion chamber, finally, the sulfur steam on the top of the tank in a low-pressure area is discharged into a sulfur tail gas incinerator for incineration treatment, the steam is used as the working fluid of the ejector, and after the mixed fluid is mixed with the waste gas on the top of the sulfur-containing tank, the working fluid is sent into a steam jacket pipeline at the outlet of the ejector (the temperature of the steam jacket pipeline is about 130 ℃), and the phenomena of sulfur steam solidification blockage and steam condensation accumulated liquid cannot be caused. The venturi ejector (of the prior art) of the present application may be replaced with other ejectors having high flow rates.
Description of the flow setup
a. The ejector injection end flow is as follows:
the tank top waste gas of a liquid sulfur storage tank (a liquid sulfur tank A and a liquid sulfur tank B) is connected to the injection end of an injector through a steam jacket pipeline (a first jacket tank top waste gas line 8 and a branch pipeline), and a jacket ball valve or a jacket cut-off valve and a remote pressure gauge are respectively arranged in front of the injection end of the injector;
b. ejector power end flow:
connecting a 1.3MPa steam line to a power end of the ejector to serve as working fluid of the ejector; a DCS remote flow meter 9 and a flow control valve (regulating valve 10) with a secondary line are arranged in front of the steam inlet ejector; the injectors are arranged into two sets (one for one standby), and the inlets of the power ends are sequentially and respectively provided with a valve (a gate valve) and a pressure gauge (11.1);
c. and (3) flow of an outlet end of the ejector:
connecting an outlet of an ejector (a Venturi ejector) with the sulfur tail gas incinerator through a 0.35MPa steam jacket heat tracing line, wherein the outlet of the ejector is sequentially provided with a pressure gauge 11 and a valve (a jacket ball valve);
d. the related flow of the sulfur tail gas incinerator:
before the exhaust gas at the outlet of the ejector enters the tail gas incinerator, a boundary zone jacket double valve and a splayed blind plate are arranged, a jacket single valve is arranged between the boundary zone double valves and is emptied, and the medium is prevented from flowing backwards.
In a preferred embodiment mode, a DCS remote flowmeter 9 is connected to the inlet end of the control pipeline, and can control the flow rate.
The application range of the tank top waste gas treatment facility relates to the technical operation field of petroleum and petrochemical industry and other industries, in particular to a scheme for solving the problem of liquid sulfur tank top waste gas or other volatile medium storage tank top waste gas systematically; the corresponding flow, pressure, temperature and liquid level control system and the interlocking system are arranged on the facility, so that the facility can have safer, more automatic and wider application prospect.
In a preferred embodiment mode, the output pipeline is connected with a valve and a sulfuric acid delivery pump, the inlet pipeline is connected with a valve and delivers liquid sulfur through a sulfuric acid liquid sulfur tank, and output and input can be accelerated.
In a preferred embodiment mode, the jacket low-pressure fire-fighting steam pipeline is connected with fire-fighting steam LS, and the jacket low-pressure fire-fighting steam pipeline is connected with a valve and an adjusting valve b7, so that the regulation and control are facilitated, the working efficiency is improved, and the practicability is high.
In the preferred embodiment mode, all valves are electrically operated valves, the valves are connected to the DCS control system, and various instruments can also be connected to the DCS control system, so that intelligent and efficient control is realized.
In a preferred embodiment mode, the liquid sulfur tank A and the liquid sulfur tank B are respectively provided with two DCS remote thermometers 3, and the two DCS remote thermometers 3 are respectively positioned at the upper part and the middle part, so that the targeted monitoring can be realized, and the accuracy is improved.
Finally, it should be noted that the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention should be considered as within the scope of the present invention.
Claims (7)
1. The utility model provides a sulfur recovery unit liquid sulfur tank deck exhaust treatment device, includes independent liquid sulfur jar A, liquid sulfur jar B, all be connected with DCS teletransmission thermometer (3), DCS teletransmission manometer (4), liquid sulfur storage tank deck evacuation (5), DCS teletransmission level gauge (6), press from both sides the output pipeline and the entering pipeline that press from both sides cover low pressure fire control steam line and be located the bottom on liquid sulfur jar A, the liquid sulfur jar B in all be equipped with electric heat tracing ware (2), its characterized in that: be connected with between liquid sulfur jar A, liquid sulfur jar B top and press from both sides cover tank deck waste gas line (8), it is connected with branch pipeline respectively to correspond liquid sulfur jar A, liquid sulfur jar B on cover tank deck waste gas line (8), be connected with two valves on the branch pipeline and be connected with venturi ejector (12) and manometer a (11) between two valves, just draw and penetrate end and the branch pipeline connection of venturi ejector (12), two be connected with after gathering the branch pipeline and lead to No. two cover tank deck waste gas line (8.1) that sulfur recovery unit burns burning furnace, be connected with two valves and be connected with eight characters blind flanges (13), check valve (14) between valve on No. two cover tank deck waste gas line (8.1).
2. The liquid sulfur tank top waste gas treatment device of the sulfur recovery device according to claim 1, characterized in that: every the entrance point of venturi sprayer (12) is connected with the pipeline No. one, be connected with valve and manometer b (11.1) on the pipeline No. one, be connected with the pipeline No. two after the pipeline collects, No. two pipeline entrance points insert there is medium pressure steam MS, be connected with the control pipeline on No. two pipelines, the control pipeline includes No. three pipelines and No. four pipelines of parallel connection, be connected with two valves on No. three pipelines and be connected with governing valve a (10) between two valves, be connected with a valve on No. four pipelines.
3. The liquid sulfur tank top waste gas treatment device of the sulfur recovery device according to claim 2, characterized in that: and the inlet end of the control pipeline is connected with a DCS remote transmission flowmeter (9).
4. The device for treating the waste gas on the top of the liquid sulfur tank of the sulfur recovery device according to claim 1, 2 or 3, characterized in that: the output pipeline is connected with a valve and a sulfuric acid delivery pump, and the inlet pipeline is connected with a valve and delivers the valve into the liquid sulfur through a sulfuric acid liquid sulfur pool.
5. The liquid sulfur tank top waste gas treatment device of the sulfur recovery device according to claim 1, characterized in that: the jacket low-pressure fire-fighting steam pipeline is connected with fire-fighting steam LS, and the jacket low-pressure fire-fighting steam pipeline is connected with a valve and a regulating valve b (7).
6. The device for treating the waste gas on the top of the liquid sulfur tank of the sulfur recovery device according to claim 1, 2, 3 or 5, wherein: each valve is an electric valve and is connected to the DCS control system.
7. The liquid sulfur tank top waste gas treatment device of the sulfur recovery device according to claim 1, characterized in that: and the liquid sulfur tank A and the liquid sulfur tank B are respectively provided with two DCS remote transmission thermometers (3), and the two DCS remote transmission thermometers (3) are respectively positioned at the upper part and the middle part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220962859.0U CN217349206U (en) | 2022-04-25 | 2022-04-25 | Liquid sulfur tank top waste gas treatment device of sulfur recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220962859.0U CN217349206U (en) | 2022-04-25 | 2022-04-25 | Liquid sulfur tank top waste gas treatment device of sulfur recovery device |
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| Publication Number | Publication Date |
|---|---|
| CN217349206U true CN217349206U (en) | 2022-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220962859.0U Active CN217349206U (en) | 2022-04-25 | 2022-04-25 | Liquid sulfur tank top waste gas treatment device of sulfur recovery device |
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| CN (1) | CN217349206U (en) |
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- 2022-04-25 CN CN202220962859.0U patent/CN217349206U/en active Active
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