CN220788050U - Liquid sulfur quantitative loading system - Google Patents

Abstract

The utility model discloses a quantitative liquid sulfur loading system, which comprises a liquid sulfur loading pump, wherein the liquid sulfur loading pump is connected to a liquid sulfur tank of a tank truck through a pipeline, and a mass flowmeter and a first switch valve are arranged on a liquid sulfur pipe; the liquid sulfur tank tail gas collecting pipe is connected with a tail gas inlet of a first steam ejector, the first steam ejector is respectively connected with a steam pipe and a first waste gas discharging pipe, and the steam pipe is provided with a steam branch pipe and a second switch valve; the upper cavity of the liquid sulfur pool is connected with a tail gas inlet of a second steam ejector through a pipeline, the second steam ejector is respectively connected with a steam branch pipe and a second waste gas discharge pipe, and the first waste gas discharge pipe is connected with the second waste gas discharge pipe; the liquid sulfur loading pump, the mass flowmeter, the first switch valve, the second switch valve and the third switch valve are all electrically connected with the batch controller. The system can quantitatively load the liquid sulfur, and combine the tail gas generated during the loading of the liquid sulfur with the tail gas generated by the liquid sulfur pool to directly send out, thereby reducing the heat loss in the tail gas collecting and conveying process.

Description

Liquid sulfur quantitative loading system

Technical Field

The utility model relates to the technical field of liquid sulfur loading and unloading, in particular to a liquid sulfur quantitative loading system.

Background

Liquid sulfur is generally stored in an upper sealed liquid sulfur tank, and when the liquid sulfur is loaded, a liquid sulfur loading pump is used for pumping the liquid sulfur from the liquid sulfur tank and delivering the liquid sulfur to a liquid sulfur tank of a tank truck. Traditional liquid sulfur loading operation adopts the iron bucket to hang on liquid sulfur line, but can't observe the flow of liquid sulfur and the liquid level in the liquid sulfur jar at the loading in-process, causes the iron bucket to drop, liquid sulfur to emit jar moreover, leads to the staff to scald, poisoning. Because of lacking quantitative liquid sulfur quantitative loading facilities, great potential safety hazards exist when the liquid level in the liquid sulfur tank is manually measured.

In order to solve the problem of liquid sulfur quantitative loading, a liquid sulfur quantitative loading facility is designed, metering equipment is arranged on a liquid sulfur conveying pipeline, the liquid sulfur quantity conveyed into a liquid sulfur tank is quantitatively metered, tail gas generated during liquid sulfur loading is collected, the tail gas is prevented from damaging staff, and the problem of tank overflow during liquid sulfur loading is solved. However, the design of the tail gas collected by the existing quantitative liquid sulfur loading facilities is unreasonable, because the tail gas of the liquid sulfur contains a certain amount of hydrogen sulfide and a small amount of sulfur dioxide and elemental sulfur, and if the tail gas is directly burnt, the emission of the sulfur dioxide in the flue gas can exceed the standard; if the tail gas is introduced above the liquid sulfur pool, the cavity above the liquid sulfur pool contains sulfur-containing tail gas generated by liquid sulfur degassing, and the tail gas generated by liquid sulfur loading and the tail gas generated by the liquid sulfur pool are pumped out from the upper part of the liquid sulfur pool together for treatment, so that the amount of the tail gas pumped out from the upper part of the liquid sulfur pool is increased, and the load of the liquid sulfur pool air pumping equipment is increased. The sulfur-containing tail gas is generally treated in a hydrogenation reduction and tail gas absorption mode, needs to be heated before entering the hydrogenation reactor, and enters the hydrogenation reactor after reaching a certain temperature, and if the temperature of the sulfur-containing tail gas extracted from the upper part of the liquid sulfur pool is low, the energy consumption required by tail gas heating is increased. In addition, the sulfur in the liquid sulfur pool can be solidified, and the sulfur needs to be prevented from being solidified by heating or stirring.

Disclosure of Invention

The utility model provides a liquid sulfur quantitative loading system which is used for respectively collecting and directly combining and sending out tail gas generated by liquid sulfur loading and tail gas generated by a liquid sulfur pool, so as to solve the problem of unreasonable tail gas treatment during liquid sulfur loading.

In order to solve the technical problems, the utility model comprises a liquid sulfur loading pump for extracting liquid sulfur from a liquid sulfur pool, wherein the liquid sulfur loading pump is connected with a liquid sulfur inlet pipe of a crane pipe through a liquid sulfur pipe, the liquid sulfur inlet pipe of the crane pipe is connected to a liquid sulfur tank of a tank truck, an exhaust pipe of the crane pipe is connected with a tail gas collecting pipe of the liquid sulfur tank, and the liquid sulfur loading pump is structurally characterized in that: the liquid sulfur pipe is provided with a mass flowmeter and a first switch valve; the tail gas collecting pipe of the liquid sulfur tank is connected with a tail gas inlet of the first steam ejector, a steam inlet and a steam outlet of the first steam ejector are respectively connected with a steam pipe and a first waste gas discharging pipe, and the steam pipe is provided with a steam branch pipe and a second switch valve which is arranged close to the steam inlet of the first steam ejector; the upper cavity of the liquid sulfur pool is connected with the tail gas inlet of the second steam ejector through the exhaust pipe of the liquid sulfur pool, the steam inlet and the steam outlet of the second steam ejector are respectively connected with the steam branch pipe and the second exhaust gas discharge pipe, and the first exhaust gas discharge pipe is connected with the second exhaust gas discharge pipe; the liquid sulfur loading pump, the mass flowmeter, the first switch valve, the second switch valve and the third switch valve are all electrically connected with the batch controller.

After the structure is adopted, the tank truck is weighed before the liquid sulfur loading truck, then the tank truck is driven to the vicinity of the oil filling riser, the pipe orifice of the oil filling riser is connected with the pipe orifice corresponding to the liquid sulfur tank, the liquid sulfur pipe and the tail gas collecting pipe of the liquid sulfur tank, the liquid sulfur loading amount of the truck is set in the batch control instrument, the batch control instrument controls the liquid sulfur loading pump, the first switching valve, the second switching valve and the third switching valve to be opened, the liquid sulfur loading pump extracts liquid sulfur from the liquid sulfur tank and sends the liquid sulfur into the liquid sulfur tank through the liquid sulfur pipe, the mass flowmeter monitors the flow rate and the liquid sulfur amount sent into the liquid sulfur tank, and when the liquid sulfur amount sent into the liquid sulfur tank reaches a set value, the liquid sulfur loading pump and the first switching valve are closed, the liquid sulfur loading is stopped, and the liquid sulfur quantitative loading is realized, so that overflow caused by the liquid sulfur loading is avoided; in the liquid sulfur loading process, steam is introduced into the first steam ejector and the second steam ejector to form local shearing force, sulfur-containing tail gas generated by the liquid sulfur tank and the liquid sulfur tank is respectively taken out, and the sulfur-containing tail gas is combined and then is sent out through the second waste gas discharge pipe.

Further, a liquid sulfur return pipe is arranged on the liquid sulfur pipe, the liquid sulfur return pipe is arranged on a pipe section between an outlet of the liquid sulfur loading pump and the mass flowmeter, a liquid outlet end of the liquid sulfur return pipe is positioned at the bottom of the liquid sulfur pool, a fourth switch valve is arranged on the liquid sulfur return pipe, and the fourth switch valve is electrically connected with the batch controller.

Furthermore, the liquid sulfur pipe, the oil filling riser, the tail gas collecting pipe of the liquid sulfur tank, the first waste gas discharging pipe, the second waste gas discharging pipe, the liquid sulfur return pipe and the waste gas pipe of the liquid sulfur tank are all provided with heat tracing.

Furthermore, the first switch valve, the second switch valve, the third switch valve and the fourth switch valve are all pneumatic valves.

Further, a pressure transmitter is arranged on the tail gas collecting pipe of the liquid sulfur tank, and the pressure transmitter is electrically connected with the batch controller.

Further, a condensate water discharge pipe is arranged on the steam pipe, and a steam trap is arranged on the condensate water discharge pipe.

Further, the condensed water drain pipe is provided at a position farther from the first steam ejector than the steam branch pipe.

Further, the batch control instrument is electrically connected with an electrostatic oil spilling controller, the electrostatic oil spilling controller is connected with a grounding pile through a grounding wire, and the electrostatic oil spilling controller is connected with a tank truck carrying a liquid sulfur tank through an electrostatic grounding clamp.

Still further, the electrostatic oil spill controller is provided with a probe for preventing liquid sulfur of the liquid sulfur tank from overflowing.

Further, the electrostatic oil spilling controller is provided with a human body electrostatic releaser.

According to the liquid sulfur quantitative loading system, the liquid sulfur loading amount is measured through the mass flowmeter, so that quantitative loading is realized, and overflow of liquid sulfur caused by excessive loading is avoided; when the liquid sulfur loading pump extracts liquid sulfur from the liquid sulfur tank, the first switch valve and the fourth switch valve are switched on and off to control the direction of the liquid sulfur, when the liquid sulfur enters the liquid sulfur tank, the liquid sulfur is loaded, and when the liquid sulfur flows back to the liquid sulfur tank, the liquid sulfur in the liquid sulfur tank is stirred to prevent the liquid sulfur from solidifying; the sulfur-containing tail gas generated by the liquid sulfur loading and the liquid sulfur pool is respectively carried out by the first steam ejector and the second steam ejector and then directly combined and sent out, so that the heat loss of the sulfur-containing tail gas and the steam in the conveying process is reduced, and the energy consumption required by the subsequent tail gas treatment and heating is reduced; the static oil spilling controller can release static electricity of a tank truck and a human body, so that safety accidents caused by static electricity are avoided, the probe of the static oil spilling controller can detect whether the liquid level in the liquid sulfur tank is ultrahigh, and when the liquid level in the liquid sulfur tank reaches the highest liquid level, the probe detects the liquid sulfur, the liquid sulfur loading is stopped, and the safety of the liquid sulfur loading process is improved; the liquid sulfur loading pump, the first switch valve, the second switch valve, the third switch valve, the fourth switch valve and the electrostatic oil spilling controller are all electrically connected with the batch controller, so that automatic control is realized. The utility model directly combines and sends out the sulfur-containing tail gas generated by the liquid sulfur loading and the liquid sulfur pool after extracting, thereby reducing heat loss; the mass flowmeter measures the loading amount of the liquid sulfur, and avoids excessive overflow of the loading amount of the liquid sulfur; a liquid sulfur return pipe is arranged on the liquid sulfur pipe, and the returned liquid sulfur is introduced into the bottom of the liquid sulfur tank to prevent the sulfur from solidifying; the electrostatic oil spilling controller can prevent safety accidents caused by electrostatic and superfluid loading, and improves the safety of liquid sulfur loading.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

in the figure: 1-a liquid sulfur loading pump; 2-liquid sulfur pipe; 21-a mass flowmeter; 22-a first switching valve; 23-liquid sulfur return pipe; 24-fourth switching valve; 3-loading arm; 4-collecting tail gas of the liquid sulfur tank; 41-a pressure transmitter; 5-steam pipe; 51-a condensate drain; 52-steam trap; 53-steam branch pipe; 54-a third switching valve; 55-a second steam ejector; 56-a second exhaust gas discharge pipe; 57-a second switching valve; 58-a first steam injector; 59-a first exhaust gas discharge pipe; 6-a liquid sulfur pool exhaust pipe; 7-batch control instrument; 8-an electrostatic oil spill controller; 9-tank car; 91-a liquid sulfur tank; 10-a liquid sulfur pool.

Detailed Description

Referring to fig. 1, a quantitative liquid sulfur loading system comprises a liquid sulfur loading pump 1 for extracting liquid sulfur from a liquid sulfur tank 10, wherein the liquid sulfur loading pump 1 can adopt a submerged pump, an outlet of the liquid sulfur loading pump 1 is connected with a liquid sulfur pipe 2, the liquid sulfur pipe 2 is connected with a liquid sulfur inlet pipe of a crane pipe 3, the liquid sulfur inlet pipe of the crane pipe 3 is connected with a liquid sulfur tank 91, and a liquid sulfur return pipe 23, a mass flowmeter 21 and a first switch valve 22 are sequentially arranged on the liquid sulfur pipe 2 along the flow direction of the liquid sulfur; the liquid outlet end of the liquid sulfur return pipe 23 is arranged at the bottom of the liquid sulfur tank 10, and a fourth switch valve 24 is arranged on the liquid sulfur return pipe 23. The exhaust pipe of the crane pipe 3 is connected with a liquid sulfur tank tail gas collecting pipe 4, the liquid sulfur tank tail gas collecting pipe 4 is connected with a tail gas inlet of a first steam injector 58, and a pressure transmitter 41 for detecting the pressure in the pipe is arranged on the liquid sulfur tank tail gas collecting pipe 4; the steam inlet of the first steam ejector 58 is connected with a steam pipe 5, the steam pipe 5 is provided with a condensate water discharge pipe 51, a steam branch pipe 53 and a second switch valve 57 which are sequentially arranged along the steam flow direction, the condensate water discharge pipe 51 is arranged at the front ends of the steam branch pipe 53 and the second switch valve 57 according to the steam flow direction from front to back, condensate water in a pipeline can be discharged better, and the steam outlet of the first steam ejector 58 is connected with a first waste gas discharge pipe 59. A steam trap 52 is arranged on the condensed water discharge pipe 51; the steam branch pipe 53 is provided with a third switch valve 54, the steam branch pipe 53 is connected with a steam inlet of a second steam ejector 55, a tail gas inlet of the second steam ejector 55 is connected with an upper cavity of the liquid sulfur tank 10 through a liquid sulfur tank waste gas pipe 6, a steam outlet of the second steam ejector 55 is connected with a second waste gas discharge pipe 56, and a first waste gas discharge pipe 59 is connected to the second waste gas discharge pipe 56. In order to prevent the sulphur from being solidified and blocked in the pipeline, the liquid sulphur pipe 2, the liquid sulphur tank tail gas collecting pipe 4, the first waste gas discharging pipe 59, the second waste gas discharging pipe 56, the liquid sulphur tank waste gas pipe 6 and the liquid sulphur return pipe 23 are all provided with steam tracing, and the oil filling riser 3 adopts electric tracing.

Referring to fig. 1, a liquid sulfur loading pump 1, a mass flowmeter 21, a first switch valve 22, a second switch valve 57, a third switch valve 54, a fourth switch valve 24 and a pressure transmitter 41 are all electrically connected with a batch controller 7, and the first switch valve 22, the second switch valve 57, the third switch valve 54 and the fourth switch valve 24 are pneumatic valves. The batch controller 7 is also electrically connected with an electrostatic oil spilling controller 8, the electrostatic oil spilling controller 8 is connected with a grounding pile through a grounding wire, and the electrostatic oil spilling controller 8 is connected with a tank truck 9 through an electrostatic grounding clamp; the electrostatic oil spill controller 8 is provided with a probe for preventing liquid sulfur in the liquid sulfur tank 91 from overflowing, the probe is arranged in the liquid sulfur tank 91, and the probe can detect when the liquid sulfur tank 91 reaches the highest liquid level; the electrostatic oil spill controller 8 is provided with a human body electrostatic releaser, which can prompt an incoming person and release human body static electricity, only the electrostatic oil spill controller 8 is electrically connected with the batch controller 7 in fig. 1, and the rest of the connections are not shown.

It should be noted that: the equipment and the pipeline of the actual device are also provided with conventional accessories such as valves, meters and the like, which are not shown in fig. 1 or the text. The liquid sulfur tank 10 in fig. 1 is provided with a partition wall, the left part of the liquid sulfur tank 10 is a liquid sulfur degassing zone, the right part of the liquid sulfur tank is a degassing liquid sulfur temporary storage zone, the liquid sulfur loading pump 1 extracts liquid sulfur from the degassing liquid sulfur temporary storage zone for loading, and the liquid sulfur tank 10 can be provided with no partition wall; the tail gas in the upper cavity of the liquid sulfur tank 10 contains sulfur, and needs to be extracted for post-treatment, which belongs to the conventional practice, and the actual liquid sulfur tank 10 is further provided with a liquid sulfur inlet pipe, a degassing device, a heating device, an stirring device and the like, and the structure of the liquid sulfur tank 10 is not the protection scope of the utility model and is not described in detail herein. The method adopted at present is that the sulfur-containing tail gas in the upper cavity of the liquid sulfur pool 10 is pumped out and then treated, the sulfur-containing tail gas is sent into a tail gas treatment unit of a sulfur production system for treatment, the general process is that the sulfur-containing tail gas and the tail gas of the sulfur production system are combined and then heated, then sent into a hydrogenation reactor for catalytic hydrogenation hydrolysis reaction to generate hydrogen sulfide, then sent into a quenching tower for water cooling and an absorption tower for absorbing the hydrogen sulfide, the purified tail gas is burnt, and the tail gas treatment unit is not the protection scope of the utility model and is not described in detail herein. The batch controller 7 (i.e. batch controller) is a common instrument for batch control of materials in petrochemical industry, the electrostatic oil spilling controller 8 is a common safety device in the filling process of liquid chemicals, has the functions of releasing human static electricity and vehicle static electricity and preventing liquid from spilling, and can give an alarm, the crane tube 3 is a common device of a liquid chemical loading and unloading vehicle, and the working principle and structure of the device are all known techniques and are not described in detail herein.

The working process comprises the following steps: the tank truck 9 is weighed before the liquid sulfur loading, then the tank truck 9 is driven to the vicinity of the loading arm 3, the liquid sulfur loading amount is set in the batch controller 7, the liquid sulfur inlet pipe and the liquid sulfur outlet pipe of the loading arm 3 are well connected with the interfaces corresponding to the liquid sulfur tank 91, the liquid sulfur pipe 2 and the liquid sulfur tank tail gas collecting pipe 4, the probe of the electrostatic oil spilling controller 8 and the electrostatic grounding clamp are connected to the corresponding positions of the liquid sulfur tank 91 and the tank truck 9, the manual valve on the pipeline is in an open state, the batch controller 7 controls the liquid sulfur loading pump 1 to be started, the first switch valve 22, the second switch valve 57, the third switch valve 54 and the fourth switch valve 24 are simultaneously opened, a part of liquid sulfur is fed into the liquid sulfur tank 91 through the liquid sulfur pipe 2, a part of liquid sulfur flows back to the bottom of the liquid sulfur tank 10 through the liquid sulfur return pipe 23, and the effect of preventing the solidification is achieved on the liquid sulfur in the liquid sulfur tank 10. Steam enters the first steam ejector 58 and the second steam ejector 55 through the steam pipe 5 and the steam branch pipe 53 respectively to form shearing force, sulfur-containing tail gas generated by the liquid sulfur tank 91 and the liquid sulfur tank 10 is respectively brought into the first steam ejector 58 and the second steam ejector 55 and then is discharged through the first waste gas discharge pipe 59 and the second waste gas discharge pipe 56, and the sulfur-containing tail gas generated by the liquid sulfur tank 91 is directly merged into the second waste gas discharge pipe 56 to be sent out, but not returned to the liquid sulfur tank 10 and then is pumped out from the liquid sulfur tank 10, so that the heat loss in a tail gas discharge route and conveying is shortened, and the energy consumption required by tail gas heating in subsequent tail gas treatment is reduced. The mass flowmeter 21 measures the amount of liquid sulfur fed into the liquid sulfur tank 91, when the amount of liquid sulfur fed into the liquid sulfur tank 91 reaches a set value, the batch controller 7 controls the first switch valve 22 to be closed to stop loading, if the liquid sulfur backflow is continued to stir the liquid sulfur tank 10, the operation of the liquid sulfur loading pump 1 is kept and the fourth switch valve 24 is opened, if the liquid sulfur tank 10 is not stirred, the operation of the liquid sulfur loading pump 1 is controlled to stop, the fourth switch valve 24 is closed to stop liquid sulfur backflow, and the batch controller can be set according to actual needs. If the probe of the electrostatic oil spill controller 8 detects that the liquid sulfur tank 91 reaches the highest liquid level, the first switch valve 22 is closed to stop liquid sulfur loading even if the set loading amount is not reached in order to avoid liquid sulfur from overflowing; in addition, if the electrostatic oil spill controller 8 detects that the ground resistance is too large, the first switch valve 22 is closed to stop loading the liquid sulfur in order to prevent safety accidents caused by static electricity; when a person is detected to be close, a signal for reminding the person to release static electricity is sent out, and the static electricity is released by the human static electricity releaser, so that the safety of liquid sulfur loading is improved. When the liquid sulfur loading is completed, the tail gas generated by the liquid sulfur tank 91 is reduced, the first steam injector 58 has a suction effect on the tail gas of the liquid sulfur tank 91, and then the air pressure in the tail gas collecting pipe 4 of the liquid sulfur tank is reduced, when the pressure transmitter 41 detects that the pressure in the pipe is lower than a certain value, the batch controller 7 controls the second switch valve 57 to be closed, the collection of the tail gas of the liquid sulfur tank 91 is stopped, the tail gas emission time of the liquid sulfur tank 10 is longer in actual operation, and the third switch valve 54 can be kept open. The condensed water generated in the steam pipe 5 is discharged from the condensed water discharge pipe 51. After the liquid sulfur loading is finished, the tank truck 9 is started after the pipeline and the circuit connected during loading of the tank truck 9 are disassembled, and the liquid sulfur loading is finished.

The liquid sulfur quantitative loading system can realize liquid sulfur quantitative automatic loading, sulfur-containing tail gas generated during liquid sulfur loading is directly combined with sulfur-containing tail gas of a liquid sulfur tank and sent out after being pumped out by the first steam injector, so that the emission route of the sulfur-containing tail gas is shortened, heat loss is reduced, and energy consumption required by subsequent tail gas treatment and heating is reduced; the electrostatic oil spilling controller can prevent overflow caused by excessive loading of liquid sulfur, so that safety accidents caused by static electricity are avoided, and safety of the liquid sulfur loading process is improved; the liquid sulfur can flow back to the bottom of the liquid sulfur pool to stir the liquid sulfur, thereby preventing the solidification of the sulfur.

Claims (10)

1. The utility model provides a liquid sulfur ration loading system, includes liquid sulfur loading pump (1) that are arranged in follow liquid sulfur pond (10) extraction liquid sulfur, liquid sulfur loading pump (1) are connected through liquid sulfur pipe (2) and the liquid sulfur of oil filling riser (3) advances the pipe, the liquid sulfur of oil filling riser (3) advances the pipe and is connected to liquid sulfur jar (91) of tank car (9), the blast pipe and the liquid sulfur jar tail gas collecting pipe (4) of oil filling riser (3) are connected, characterized by: the liquid sulfur pipe (2) is provided with a mass flowmeter (21) and a first switch valve (22); the liquid sulfur tank tail gas collecting pipe (4) is connected with a tail gas inlet of a first steam ejector (58), a steam inlet and a steam outlet of the first steam ejector (58) are respectively connected with a steam pipe (5) and a first waste gas discharging pipe (59), and a steam branch pipe (53) and a second switch valve (57) close to the steam inlet of the first steam ejector (58) are arranged on the steam pipe (5); the upper cavity of the liquid sulfur pool (10) is connected with the tail gas inlet of a second steam ejector (55) through a liquid sulfur pool exhaust pipe (6), the steam inlet and the steam outlet of the second steam ejector (55) are respectively connected with a steam branch pipe (53) and a second exhaust gas discharge pipe (56), and the first exhaust gas discharge pipe (59) is connected with the second exhaust gas discharge pipe (56); the liquid sulfur loading pump (1), the mass flowmeter (21), the first switch valve (22), the second switch valve (57) and the third switch valve (54) are all electrically connected with the batch control instrument (7).

2. The liquid sulfur quantitative loading system according to claim 1, characterized in that: be equipped with liquid sulfur back flow (23) on liquid sulfur pipe (2), liquid sulfur back flow (23) are located on the pipeline section between the export of liquid sulfur loading pump (1) and mass flowmeter (21), the play liquid end of liquid sulfur back flow (23) is located liquid sulfur pond (10) bottom, be equipped with fourth ooff valve (24) on liquid sulfur back flow (23), fourth ooff valve (24) are connected with batch accuse appearance (7) electricity.

3. The liquid sulfur quantitative loading system according to claim 2, characterized in that: the liquid sulfur pipe (2), the crane pipe (3), the liquid sulfur tank tail gas collecting pipe (4), the first waste gas discharging pipe (59), the second waste gas discharging pipe (56), the liquid sulfur return pipe (23) and the liquid sulfur tank waste gas pipe (6) are all provided with heat tracing.

4. The liquid sulfur quantitative loading system according to claim 2, characterized in that: the first switch valve (22), the second switch valve (57), the third switch valve (54) and the fourth switch valve (24) are all pneumatic valves.

5. The liquid sulfur quantitative loading system according to claim 1, characterized in that: the liquid sulfur tank tail gas collecting pipe (4) is provided with a pressure transmitter (41), and the pressure transmitter (41) is electrically connected with the batch control instrument (7).

6. The liquid sulfur quantitative loading system according to claim 1, characterized in that: the steam pipe (5) is provided with a condensate water discharge pipe (51), and the condensate water discharge pipe (51) is provided with a steam trap (52).

7. The liquid sulfur quantitative loading system according to claim 6, wherein: the condensate outlet pipe (51) is provided at a position farther from the first steam ejector (58) than the steam branch pipe (53).

8. The liquid sulfur quantitative loading system according to claim 1, characterized in that: the batch control instrument (7) is electrically connected with an electrostatic oil spilling controller (8), the electrostatic oil spilling controller (8) is connected with a grounding pile through a grounding wire, and the electrostatic oil spilling controller (8) is connected with a tank truck (9) carrying a liquid sulfur tank (91) through an electrostatic grounding clamp.

9. The liquid sulfur quantitative loading system according to claim 8, wherein: the electrostatic oil spill controller (8) is provided with a probe for preventing liquid sulfur of the liquid sulfur tank (91) from overflowing.

10. The liquid sulfur quantitative loading system according to claim 8, wherein: the electrostatic oil spilling controller (8) is provided with a human body electrostatic releaser.