CN217235267U - Loading system capable of preventing dimethyl ether spherical tank from being pressurized - Google Patents
Loading system capable of preventing dimethyl ether spherical tank from being pressurized Download PDFInfo
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- CN217235267U CN217235267U CN202221032730.6U CN202221032730U CN217235267U CN 217235267 U CN217235267 U CN 217235267U CN 202221032730 U CN202221032730 U CN 202221032730U CN 217235267 U CN217235267 U CN 217235267U
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Abstract
The utility model provides a prevent loading system that dimethyl ether spherical tank pressure is high, it includes: dimethyl ether spherical tank, dimethyl ether spherical tank outlet pipeline, loading pump, dimethyl ether loading liquid phase oil filling riser, dimethyl ether tank car, loading gas phase pipeline and vaporizer, the one end of dimethyl ether spherical tank outlet pipeline with the dimethyl ether spherical tank is connected, the other end of dimethyl ether spherical tank outlet pipeline with the loading pump is connected, the one end of dimethyl ether loading liquid phase oil filling riser with the loading pump is connected, the other end of dimethyl ether loading liquid phase oil filling riser with the dimethyl ether tank car is connected, the one end of loading gas phase pipeline with the dimethyl ether tank car is connected, the other end of loading gas phase pipeline with the vaporizer is connected. By changing the gas phase of the loading system, gases such as hydrogen, carbon monoxide, carbon dioxide, methane and the like in the tank car do not enter the spherical tank any more during loading, so that the gases enter the gasification tank through a newly-matched loading gas phase pipeline for combustion of the hot blast stove.
Description
Technical Field
The utility model relates to a spherical tank loading technical field especially relates to a prevent loading system that dimethyl ether spherical tank pressure is high.
Background
At present, the dimethyl ether loading process in China is basically characterized in that a dimethyl ether spherical tank is provided with an outlet pipeline, dimethyl ether is conveyed to a loading crane pipe through the pressurization of a loading pump, the liquid phase and the gas phase of the loading crane pipe are respectively connected with a dimethyl ether tank truck, and a gas phase valve of the loading crane pipe is opened when the pressure of the dimethyl ether tank truck rises to be consistent with the pressure of the dimethyl ether spherical tank, so that the spherical tank and the tank truck are communicated for loading.
In order to ensure the loading safety, the gas phase of the dimethyl ether tank truck is communicated with the dimethyl ether spherical tank, so that the condition that the high pressure of the outlet of the loading pump leads to the take-off of the safety valve of the dimethyl ether tank truck is prevented. The dimethyl ether spherical tank has the advantages that after the dimethyl ether spherical tank is communicated, gases such as hydrogen, carbon monoxide, carbon dioxide and methane in the dimethyl ether tank truck enter the dimethyl ether spherical tank, so that the pressure of the dimethyl ether spherical tank is high, the dimethyl ether spherical tank is required to be put into the dimethyl ether spherical tank for cooling by spraying water or the pressure relief of a safety valve bypass is opened for reducing the pressure of the dimethyl ether spherical tank, the boiling point of dimethyl ether is-24.9 ℃, the flare pipeline is made of common carbon steel, partial dimethyl ether is vaporized due to pressure reduction during emptying, the temperature is reduced, the temperature difference of the flare pipeline is large, and the conditions of cracking of welding seams of the flare pipeline, cracking of the pipeline and the like are caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a prevent that loading system that dimethyl ether spherical tank pressure is high.
The utility model provides an above-mentioned technical problem's technical scheme as follows: the utility model provides a prevent that loading system that dimethyl ether spherical tank pressure is high, it includes: dimethyl ether spherical tank, dimethyl ether spherical tank outlet pipeline, loading pump, dimethyl ether loading liquid phase oil filling riser, dimethyl ether tank car, loading gas phase pipeline and vaporizer, the one end of dimethyl ether spherical tank outlet pipeline with the dimethyl ether spherical tank is connected, the other end of dimethyl ether spherical tank outlet pipeline with the loading pump is connected, the one end of dimethyl ether loading liquid phase oil filling riser with the loading pump is connected, the other end of dimethyl ether loading liquid phase oil filling riser with the dimethyl ether tank car is connected, the one end of loading gas phase pipeline with the dimethyl ether tank car is connected, the other end of loading gas phase pipeline with the vaporizer is connected.
Adopt the utility model discloses technical scheme's beneficial effect is: by changing the gas phase of the loading system, gases such as hydrogen, carbon monoxide, carbon dioxide, methane and the like in the tank car do not enter the spherical tank any more during loading, so that the gases enter the gasification tank through a newly-matched loading gas phase pipeline for combustion of the hot blast stove. The condition that the dimethyl ether spherical tank is high in pressure and needs to be decompressed to a torch, the condition that due to the fact that the boiling point of dimethyl ether is-24.9 ℃, the temperature of a torch pipeline is made of ordinary carbon steel, partial dimethyl ether is vaporized due to decompression during emptying, the temperature difference of the torch pipeline is reduced, the welding line of the torch pipeline is cracked, the pipeline is broken and the like is caused is avoided, meanwhile, the spherical tank spray water can be reduced, the water consumption is saved, and the dimethyl ether tank area can stably operate.
Further, a pressure regulating valve and a loading crane pipe gas pressure gauge are arranged on the loading gas pipeline, the dimethyl ether tank truck is connected with the gasification tank through the pressure regulating valve, and the loading crane pipe gas pressure gauge is installed on the pipeline between the pressure regulating valve and the dimethyl ether tank truck.
The beneficial effect of adopting the further technical scheme is that: the pressure of the loading oil filling riser gas-phase pressure gauge is controlled by a pressure regulating valve to be consistent with or 50KPa higher than that of the dimethyl ether spherical tank. When the loading gas phase pressure is consistent with or 50KPa higher than that of the dimethyl ether spherical tank, the pressure regulating valve is opened to release the pressure to the gasification tank. So as to prevent the large temperature difference of the torch pipeline, the cracking of welding seams of the torch pipeline, the fracture of the pipeline and the like caused by the large temperature difference of the torch pipeline due to the vaporization of partial dimethyl ether and the reduction of temperature caused by the pressure relief of the spherical tank to the torch.
Further, still be provided with loading arm gaseous phase on the loading gaseous phase pipeline and draw off valve, first hand valve, second hand valve and by-pass valve, the dimethyl ether tank car passes through loading arm gaseous phase draw off valve with first hand valve is connected, first hand valve with pressure regulating valve connects, pressure regulating valve pass through the second hand valve with the gasification tank is connected, the one end of by-pass valve with first hand valve with the tube coupling between the loading arm gaseous phase draw off valve, the other end of by-pass valve with the second hand valve with the tube coupling between the gasification tank, loading arm gaseous phase manometer install first hand valve with between the pressure regulating valve.
The beneficial effect of adopting the further technical scheme is that: the loading system for preventing the dimethyl ether spherical tank from being high in pressure can effectively prevent the dimethyl ether spherical tank from being high in pressure by changing the loading gas phase to the gasification tank, avoid the situation that a safety valve bypass valve is opened to release the pressure to a torch pipeline due to the high pressure of the spherical tank, and reduce the running risk of the dimethyl ether spherical tank; the dimethyl ether spherical tank can run safely and stably, and the amount of spray water is saved.
Further, a third hand valve is installed between the first hand valve and the loading crane pipe gas-phase pull-off valve, and a fourth hand valve is installed between the second hand valve and the gasification tank.
The beneficial effect of adopting the further technical scheme is that: the arrangement of the plurality of hand valves is convenient for users to adjust the hand valves according to actual needs so as to be suitable for different application scenes, when the pressure of the dimethyl ether tank truck is consistent with or 50KPa higher than that of the dimethyl ether spherical tank, a central control personnel opens the pressure adjusting valve to enable the pressure of the dimethyl ether tank truck to pass through the loading crane pipe gas-phase pull-off valve and the loading crane pipe gas-phase pressure gauge; the pressure regulating valve discharges to the gasification tank.
Further, a flow meter and a loading oil filling riser liquid phase electric valve are arranged on the dimethyl ether loading liquid phase oil filling riser, the loading pump is connected with the dimethyl ether tank car through the loading oil filling riser liquid phase electric valve, and the flow meter is installed on a pipeline between the loading oil filling riser liquid phase electric valve and the loading pump.
The beneficial effect of adopting the further technical scheme is that: and setting the filling amount through a quantitative loading system, and metering through a flowmeter to fill. Dimethyl ether is conveyed to a dimethyl ether loading liquid phase oil filling riser by the pressurization of a loading pump, and the loading oil filling riser liquid phase electric valve and the front hand valve are opened for loading.
Further, a loading oil filling riser liquid phase pull-off valve is further arranged on the dimethyl ether loading liquid phase oil filling riser, and the loading oil filling riser liquid phase electric valve is connected with the dimethyl ether tank truck through the loading oil filling riser liquid phase pull-off valve.
The beneficial effect of adopting the further technical scheme is that: and starting a loading pump, increasing the pressure of the dimethyl ether by 0.35MPa, sending the dimethyl ether to a dimethyl ether loading arm liquid phase, and filling the dimethyl ether tank car through a loading arm liquid phase hand valve, a flowmeter, a loading arm liquid phase electric valve and a loading arm liquid phase pull-off valve.
Furthermore, a fifth hand valve and a sixth hand valve are arranged between the loading oil filling riser liquid phase electric valve and the loading pump, the loading pump is connected with the sixth hand valve through the fifth hand valve, the sixth hand valve is connected with the loading oil filling riser liquid phase electric valve, the flow meter is positioned between the sixth hand valve and the loading oil filling riser liquid phase electric valve, and a seventh hand valve is arranged between the loading oil filling riser liquid phase electric valve and the loading oil filling riser liquid phase pull-off valve.
The beneficial effect of adopting the further technical scheme is that: the setting of a plurality of hand valves, the user of being convenient for adjusts the hand valve in order to be suitable for different application scenes according to actual need, starts the pump of loading, improves dimethyl ether 0.35MPa and sends to dimethyl ether loading arm liquid phase, fills the dimethyl ether tank car through loading arm liquid phase hand valve, flowmeter, loading arm liquid phase motorised valve, loading arm liquid phase pull-off valve.
Further, a spherical tank outlet adjusting valve is arranged on the dimethyl ether spherical tank outlet pipeline, and the dimethyl ether spherical tank is connected with the loading pump through the spherical tank outlet adjusting valve.
The beneficial effect of adopting the further technical scheme is that: the dimethyl ether spherical tank opens the spherical tank outlet regulating valve, and the dimethyl ether is led to the loading pump.
Furthermore, a spherical tank outlet safety instrument system valve is further arranged on the dimethyl ether spherical tank outlet pipeline, and the spherical tank outlet regulating valve is connected with the loading pump through the spherical tank outlet safety instrument system valve.
The beneficial effect of adopting the further technical scheme is that: the dimethyl ether spherical tank outlet pipeline is provided with a spherical tank outlet safety instrument system valve, when the dimethyl ether spherical tank liquid level is low, the spherical tank outlet safety instrument system valve is triggered to be protected and closed in an interlocking mode, and when the dimethyl ether spherical tank low liquid level interlocking triggers the spherical tank outlet safety instrument system valve to be protected and closed, the loading pump is in jump-stop interlocking mode for protecting the loading pump. The dimethyl ether spherical tank opens the spherical tank outlet regulating valve, the spherical tank outlet safety instrument system valve and the front and rear hand valves to lead the dimethyl ether to the loading pump. And (4) setting the charging amount through a quantitative loading system to load.
Furthermore, the dimethyl ether spherical tank is connected with the spherical tank outlet regulating valve through an eighth hand valve, and the spherical tank outlet safety instrument system valve is connected with the loading pump through a ninth hand valve.
The beneficial effect of adopting the further technical scheme is that: the setting of a plurality of hand valves, the user of being convenient for adjusts the hand valve in order to be suitable for different application scenes according to actual need, and the dimethyl ether spherical tank is opened spherical tank outlet control valve, spherical tank outlet safety instrument system valve and is had the hand valve around, leads dimethyl ether to the pump of loading. And (4) setting the charging amount through a quantitative loading system to load.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is the embodiment of the utility model provides a prevent that loading system's that dimethyl ether spherical tank pressure is high structural schematic diagram.
The reference numbers illustrate: 1. a dimethyl ether spherical tank; 2. an outlet regulating valve of the spherical tank; 3. a spherical tank outlet safety instrument system valve; 4. loading a pump; 5. a flow meter; 6. a liquid phase electric valve of a loading crane pipe; 7. loading a loading arm liquid-phase pull-off valve; 8. a dimethyl ether tank truck; 9. loading oil filling riser gas-phase pull-off valve; 10. a gas-phase pressure gauge of a loading arm; 11. a pressure regulating valve; 12. a gasification tank; 13. an outlet pipeline of the dimethyl ether spherical tank; 14. dimethyl ether loading liquid phase loading arm; 15. loading a gas phase pipeline; 16. a first hand valve; 17. a second hand valve; 18. a bypass valve; 19. a third hand valve; 20. a fourth hand valve; 22. a fifth hand valve; 23. a sixth hand valve; 24. a seventh hand valve; 25. an eighth hand valve; 26. ninth hand valve.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a prevent that loading system that dimethyl ether spherical tank pressure is high, it includes: dimethyl ether spherical tank 1, dimethyl ether spherical tank outlet pipeline 13, loading pump 4, dimethyl ether loading liquid phase oil filling riser 14, dimethyl ether tank car 8, loading gas phase pipeline 15 and vaporizer 12, the one end of dimethyl ether spherical tank outlet pipeline 13 with dimethyl ether spherical tank 1 connects, the other end of dimethyl ether spherical tank outlet pipeline 13 with loading pump 4 connects, the one end of dimethyl ether loading liquid phase oil filling riser 14 with loading pump 4 connects, the other end of dimethyl ether loading liquid phase oil filling riser 14 with dimethyl ether tank car 8 connects, the one end of loading gas phase pipeline 15 with dimethyl ether tank car 8 connects, the other end of loading gas phase pipeline 15 with vaporizer 12 connects.
Adopt the utility model discloses technical scheme's beneficial effect is: by changing the gas phase of the loading system, gases such as hydrogen, carbon monoxide, carbon dioxide, methane and the like in the tank car do not enter the spherical tank any more during loading, so that the gases enter the gasification tank through a newly-matched loading gas phase pipeline for combustion of the hot blast stove. The condition that the dimethyl ether spherical tank is high in pressure and needs to be decompressed to a torch, the condition that due to the fact that the boiling point of dimethyl ether is-24.9 ℃, the temperature of a torch pipeline is made of ordinary carbon steel, partial dimethyl ether is vaporized due to decompression during emptying, the temperature difference of the torch pipeline is reduced, the welding line of the torch pipeline is cracked, the pipeline is broken and the like is caused is avoided, meanwhile, the spherical tank spray water can be reduced, the water consumption is saved, and the dimethyl ether tank area can stably operate.
The model of the gasification tank can be V3104. The spherical tank outlet regulating valve, the spherical tank outlet safety instrument system valve, the loading crane pipe liquid phase electric valve and the pressure regulating valve can be all remote control electric valves.
The utility model provides a loading system for preventing the dimethyl ether spherical tank from high pressure, a dimethyl ether spherical tank outlet pipeline is connected with a loading pump, and a spherical tank outlet regulating valve, a spherical tank outlet safety instrument system valve and a front hand valve and a rear hand valve are arranged on the dimethyl ether spherical tank outlet pipeline; the pipeline of the loading pump outlet is connected with the liquid phase of the loading oil filling pipe, the pipeline of the loading pump outlet is provided with a loading pump outlet valve, a loading oil filling pipe inlet valve, an electric valve, a flowmeter and a pull-off valve, the pipeline of the loading oil filling pipe is connected with the gasification tank through a gas phase, and the pipeline of the loading pump outlet valve and the loading oil filling pipe is provided with a pull-off valve, a loading oil filling pipe gas phase outlet valve, an adjusting valve, a front hand valve, a rear hand valve, a bypass valve and an inlet valve; and (4) setting the charging amount through a quantitative loading system to load. By changing the gas phase of the loading system, gases such as hydrogen, carbon monoxide, carbon dioxide, methane and the like in the tank car do not enter the spherical tank any more during loading, so that the gases enter the gasification tank through a new distribution pipeline for combustion of the hot blast stove. The conditions that partial dimethyl ether is vaporized and the temperature is reduced due to pressure reduction during emptying, the temperature difference of the flare pipeline is large, the welding seams of the flare pipeline are cracked, the pipeline is broken and the like can be caused because the dimethyl ether spherical tank is high in pressure and needs to be decompressed to a flare, and the boiling point of the dimethyl ether is-24.9 ℃, and the flare pipeline is made of common carbon steel, so that the water consumption is saved; the stable operation of the dimethyl ether tank field is ensured.
The loading system for preventing the dimethyl ether spherical tank from being high in pressure comprises a central control device and a vehicle filling device which are sequentially communicated; the controlled end of the central control equipment is connected with a spherical tank outlet regulating valve, a loading pump and a control end of loading gas-phase pressure of the central control equipment; the vehicle filling equipment comprises a dimethyl ether spherical tank, a spherical tank outlet regulating valve, a spherical tank outlet safety instrument system valve, a loading pump, a flowmeter, a loading crane pipe liquid phase electric valve, a loading crane pipe liquid phase pull-off valve and a dimethyl ether tank truck; the dimethyl ether spherical tank outlet pipeline is provided with a spherical tank outlet regulating valve, a spherical tank outlet safety instrument system valve and a front hand valve and a rear hand valve, dimethyl ether is conveyed to a dimethyl ether loading liquid phase oil filling riser through loading pump pressurization, and an electric valve at the inlet of the liquid phase oil filling riser and the front hand valve are opened for loading. The loading gas phase pipeline is provided with a loading oil filling riser gas phase pull-off valve loading oil filling riser gas phase pressure gauge and a pressure regulating valve communicated with the gasification tank.
The loading gas phase pipeline is provided with a pressure gauge, the loading gas phase pipeline is provided with a pressure regulating valve, the pressure regulating valve is provided with a bypass valve, and the loading gas phase is placed in the gasification tank. When the loading gas phase pressure is consistent with or 50KPa higher than that of the dimethyl ether spherical tank, the pressure regulating valve is opened to release the pressure to the gasification tank. The problem that due to the fact that partial dimethyl ether is vaporized and the temperature is reduced due to the fact that the pressure of the spherical tank is high and the pressure is relieved to the torch, the temperature difference of the torch pipeline is large, and welding seams of the torch pipeline are cracked, the pipeline is broken and the like is solved.
By changing the loading gas phase to the gasification tank, the high pressure of the dimethyl ether spherical tank can be effectively avoided, the pressure relief of the safety valve bypass valve to the torch pipeline is avoided when the pressure of the spherical tank is high, and the running risk of the dimethyl ether spherical tank is reduced; the safe and stable operation of the dimethyl ether spherical tank is ensured, and the amount of spray water is saved.
As shown in fig. 1, further, a pressure regulating valve 11 and a loading crane pipe gas pressure gauge 10 are arranged on the loading gas phase pipeline 15, the dimethyl ether tank truck 8 is connected with the gasification tank 12 through the pressure regulating valve 11, and the loading crane pipe gas pressure gauge 10 is installed on a pipeline between the pressure regulating valve 11 and the dimethyl ether tank truck 8.
The beneficial effect of adopting the further technical scheme is that: and controlling the pressure of the gas-phase pressure gauge of the loading oil filling riser to be consistent with or 50KPa higher than that of the dimethyl ether spherical tank through a pressure regulating valve. When the loading gas phase pressure is consistent with or 50KPa higher than that of the dimethyl ether spherical tank, the pressure regulating valve is opened to release the pressure to the gasification tank. The device can prevent the large temperature difference of the torch pipeline, the cracking of welding seams of the torch pipeline, the fracture of the pipeline and the like due to the fact that partial dimethyl ether is vaporized and the temperature is reduced due to the fact that the pressure of the spherical tank is high and the pressure is relieved to the torch.
Wherein, the loading oil filling riser gas-phase manometer can be loading oil filling riser gas-phase teletransmission manometer. Remote monitoring of pressure data is facilitated. The pressure regulator valve may be model number PV 118.
As shown in fig. 1, a loading crane pipe gas-phase pull-off valve 9, a first hand valve 16, a second hand valve 17 and a bypass valve 18 are further arranged on the loading crane pipe gas-phase pipeline 15, the dimethyl ether tank truck 8 is connected with the first hand valve 16 through the loading crane pipe gas-phase pull-off valve 9, the first hand valve 16 is connected with the pressure regulating valve 11, the pressure regulating valve 11 is connected with the gasification tank 12 through the second hand valve 17, one end of the bypass valve 18 is connected with a pipeline between the first hand valve 16 and the loading crane pipe gas-phase pull-off valve 9, the other end of the bypass valve 18 is connected with a pipeline between the second hand valve 17 and the gasification tank 12, and the loading crane pipe gas-phase pressure gauge 10 is installed between the first hand valve 16 and the pressure regulating valve 11.
The beneficial effect of adopting the further technical scheme is that: the loading system for preventing the dimethyl ether spherical tank from being high in pressure can effectively prevent the dimethyl ether spherical tank from being high in pressure by changing the loading gas phase to the gasification tank, avoid the situation that a safety valve bypass valve is opened to release the pressure to a torch pipeline due to the high pressure of the spherical tank, and reduce the running risk of the dimethyl ether spherical tank; the dimethyl ether spherical tank can run safely and stably, and the amount of spray water is saved.
As shown in fig. 1, a third hand valve 19 is installed between the first hand valve 16 and the loading crane pipe gas-phase pull-off valve 9, and a fourth hand valve 20 is installed between the second hand valve 17 and the gasification tank 12.
The beneficial effect of adopting the further technical scheme is that: the arrangement of the plurality of hand valves is convenient for users to adjust the hand valves according to actual needs so as to be suitable for different application scenes, when the pressure of the dimethyl ether tank truck is consistent with or 50KPa higher than that of the dimethyl ether spherical tank, a central control personnel opens the pressure adjusting valve to enable the pressure of the dimethyl ether tank truck to pass through the loading crane pipe gas-phase pull-off valve and the loading crane pipe gas-phase pressure gauge; the pressure regulating valve discharges to the gasification tank.
As shown in fig. 1, further, a flow meter 5 and a loading oil filling riser liquid phase electric valve 6 are arranged on the dimethyl ether loading liquid phase oil filling riser 14, the loading pump 4 is connected with the dimethyl ether tank truck 8 through the loading oil filling riser liquid phase electric valve 6, and the flow meter 5 is installed on a pipeline between the loading oil filling riser liquid phase electric valve 6 and the loading pump 4.
The beneficial effect of adopting the further technical scheme is that: and setting the filling amount through a quantitative loading system, and metering through a flowmeter to fill. The dimethyl ether is sent to a dimethyl ether loading liquid phase filling riser by the pressurization of a loading pump, and a loading filling riser liquid phase electric valve and a front hand valve are opened for loading.
As shown in fig. 1, a loading oil filling riser liquid phase pull-off valve 7 is further arranged on the dimethyl ether loading liquid phase oil filling riser 14, and the loading oil filling riser liquid phase electric valve 6 is connected with the dimethyl ether tank truck 8 through the loading oil filling riser liquid phase pull-off valve 7.
The beneficial effect of adopting the further technical scheme is that: and starting a loading pump, increasing the pressure of the dimethyl ether by 0.35MPa, sending the dimethyl ether to a dimethyl ether loading arm liquid phase, and filling the dimethyl ether tank car through a loading arm liquid phase hand valve, a flowmeter, a loading arm liquid phase electric valve and a loading arm liquid phase pull-off valve.
As shown in fig. 1, a fifth hand valve 22 and a sixth hand valve 23 are disposed between the loading crane pipe liquid phase electric valve 6 and the loading pump 4, the loading pump 4 is connected to the sixth hand valve 23 through the fifth hand valve 22, the sixth hand valve 23 is connected to the loading crane pipe liquid phase electric valve 6, the flowmeter 5 is disposed between the sixth hand valve 23 and the loading crane pipe liquid phase electric valve 6, and a seventh hand valve 24 is disposed between the loading crane pipe liquid phase electric valve 6 and the loading crane pipe liquid phase pull-off valve 7.
The beneficial effect of adopting the further technical scheme is that: the setting of a plurality of hand valves, the user of being convenient for adjusts the hand valve in order to be suitable for different application scenes according to actual need, starts the pump of loading, improves dimethyl ether 0.35MPa and sends to dimethyl ether loading arm liquid phase, fills the dimethyl ether tank car through loading arm liquid phase hand valve, flowmeter, loading arm liquid phase motorised valve, loading arm liquid phase pull-off valve.
As shown in fig. 1, further, a spherical tank outlet regulating valve 2 is arranged on the dimethyl ether spherical tank outlet pipeline 13, and the dimethyl ether spherical tank 1 is connected with the loading pump 4 through the spherical tank outlet regulating valve 2.
The beneficial effect of adopting the further technical scheme is that: the dimethyl ether spherical tank opens the spherical tank outlet regulating valve, and the dimethyl ether is led to the loading pump.
As shown in fig. 1, further, a spherical tank outlet safety instrument system valve 3 is further arranged on the dimethyl ether spherical tank outlet pipeline 13, and the spherical tank outlet regulating valve 2 is connected with the loading pump 4 through the spherical tank outlet safety instrument system valve 3.
The beneficial effect of adopting the further technical scheme is that: be provided with spherical tank export safety instrument system valve on the dimethyl ether spherical tank outlet pipeline, when the dimethyl ether spherical tank liquid level was low, the interlocking triggered spherical tank export safety instrument system valve protection and closes, when the dimethyl ether spherical tank low liquid level interlocking triggered spherical tank export safety instrument system valve protection and closes, for the protection loading pump, the loading pump will interlock the jump stop. The dimethyl ether spherical tank opens the spherical tank outlet regulating valve, the spherical tank outlet safety instrument system valve and the front and rear hand valves to lead the dimethyl ether to the loading pump. And (4) setting the charging amount through a quantitative loading system to load.
Wherein, the spherical tank outlet regulating valve can be an electric valve of the spherical tank outlet.
As shown in fig. 1, further, the dimethyl ether spherical tank 1 is connected with the spherical tank outlet regulating valve 2 through an eighth hand valve 25, and the spherical tank outlet safety instrument system valve 3 is connected with the truck-loading pump 4 through a ninth hand valve 26.
The beneficial effect of adopting the further technical scheme is that: the setting of a plurality of hand valves, the user of being convenient for adjusts the hand valve in order to be suitable for different application scenes according to actual need, and the dimethyl ether spherical tank is opened spherical tank outlet control valve, spherical tank outlet safety instrument system valve and is had the hand valve around, leads dimethyl ether to the pump of loading. And (4) setting the charging amount through a quantitative loading system to load.
The spherical tank outlet Safety instrumentation System valve may be a spherical tank outlet SIS (Safety Instrumented System) System valve.
Example one
As shown in fig. 1, the loading system for preventing the dimethyl ether spherical tank from having high pressure comprises a central control device and a vehicle charging device which are sequentially communicated; the controlled end of the central control equipment is connected with a spherical tank outlet valve, a loading pump and a control end of loading gas-phase pressure of the central control equipment; the vehicle filler device includes: the System comprises a dimethyl ether spherical tank, a spherical tank outlet regulating valve, a spherical tank outlet Safety instrument System valve (Safety instrument System), a loading pump, a flowmeter, a loading crane pipe liquid phase electric valve, a loading crane pipe liquid phase pull-off valve and a dimethyl ether tank truck; the dimethyl ether spherical tank outlet pipeline is provided with a spherical tank outlet regulating valve, a spherical tank outlet safety instrument system valve and a front hand valve and a rear hand valve, dimethyl ether is conveyed to a dimethyl ether loading liquid phase oil filling riser through loading pump pressurization, and an electric valve at the inlet of the liquid phase oil filling riser and the front hand valve are opened for loading. The loading gas phase pipeline is provided with a loading oil filling riser gas phase pull-off valve, a loading oil filling riser gas phase pressure gauge and a pressure regulating valve communicated with the gasification tank, and when the loading gas phase pressure is consistent with or 50KPa higher than the dimethyl ether spherical tank, the pressure regulating valve is opened to release pressure to the gasification tank.
Example two
The loading system for preventing dimethyl ether spherical tank pressure is high of the embodiment one, can further be, install the teletransmission manometer on the loading gas phase pipeline, be provided with pressure regulating valve on the loading gas phase pipeline, bypass valve is installed to the pressure regulating valve of loading gas phase pipeline, and the gasifier is placed to loading gas phase pipeline. The System can be further characterized in that the central Control device adopts a Distributed Control System (DCS), the output ends of the spherical tank outlet regulating valve and the loading oil filling riser gas-phase pressure gauge of the dimethyl ether spherical tank are connected with the signal input end of the central Control device, and the main valve Control end of the central Control device is connected with the controlled end of the pressure regulating valve.
The loading method of the loading system for preventing the dimethyl ether spherical tank from having high pressure comprises the following steps:
the dimethyl ether spherical tank opens the spherical tank outlet regulating valve, the spherical tank outlet safety instrument system valve and the front and rear hand valves, and the dimethyl ether is led to the loading pump; and starting a loading pump, increasing the pressure of the dimethyl ether by 0.35MPa, sending the dimethyl ether to a dimethyl ether loading arm liquid phase, and filling the dimethyl ether tank car through a loading arm liquid phase hand valve, a flowmeter, a loading arm liquid phase electric valve and a loading arm liquid phase pull-off valve.
When the pressure of the dimethyl ether tank truck is consistent with or higher than the pressure of the dimethyl ether spherical tank by 50KPa, the central control personnel open the pressure regulating valve to ensure that the pressure of the dimethyl ether tank truck passes through the loading crane pipe gas-phase pull-off valve and the loading crane pipe gas-phase pressure gauge; the pressure regulating valve discharges to the gasification tank.
The loading system for preventing the pressure of the dimethyl ether spherical tank from being high can further comprise a spherical tank outlet safety instrument system valve arranged on an outlet pipeline of the dimethyl ether spherical tank, and when the liquid level of the dimethyl ether spherical tank is low, the spherical tank outlet safety instrument system valve is triggered to be closed in an interlocking mode; when the dimethyl ether spherical tank low liquid level interlocking triggers the spherical tank outlet safety instrument system valve to be protected and closed, the loading pump is stopped by the interlocking for protecting the loading pump. And setting the filling amount through a quantitative loading system, and metering through a flowmeter to fill.
The dimethyl ether spherical tank outlet pipeline is provided with a spherical tank outlet regulating valve, a spherical tank outlet safety instrument system valve and a front hand valve and a rear hand valve, dimethyl ether is conveyed to a dimethyl ether loading liquid phase oil filling riser through loading pump pressurization, and an electric valve at the inlet of the liquid phase oil filling riser and the front hand valve are opened for loading. The loading gas phase pipeline is provided with a loading oil filling riser gas phase pull-off valve loading oil filling riser gas phase pressure gauge and a pressure regulating valve communicated with the gasification tank, and when the loading gas phase pressure is consistent with or 50KPa higher than the dimethyl ether spherical tank, the pressure regulating valve is opened to release pressure to the gasification tank.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a prevent that dimethyl ether spherical tank pressure is high loading system which characterized in that includes: dimethyl ether spherical tank, dimethyl ether spherical tank export pipeline, loading pump, dimethyl ether loading liquid phase oil filling riser, dimethyl ether tank car, loading gas phase pipeline and vaporizer, the one end of dimethyl ether spherical tank export pipeline with the dimethyl ether spherical tank is connected, the other end of dimethyl ether spherical tank export pipeline with the loading pump is connected, the one end of dimethyl ether loading liquid phase oil filling riser with the loading pump is connected, the other end of dimethyl ether loading liquid phase oil filling riser with the dimethyl ether tank car is connected, the one end of loading gas phase pipeline with the dimethyl ether tank car is connected, the other end of loading gas phase pipeline with the vaporizer is connected.
2. The system for loading the dimethyl ether spherical tank, which is used for preventing the pressure of the dimethyl ether spherical tank from being high, according to claim 1, is characterized in that a pressure regulating valve and a loading arm gas-phase pressure gauge are arranged on the loading gas-phase pipeline, the dimethyl ether tank truck is connected with the gasification tank through the pressure regulating valve, and the loading arm gas-phase pressure gauge is arranged on a pipeline between the pressure regulating valve and the dimethyl ether tank truck.
3. The system of claim 2, wherein a loading oil filling riser gas-phase pull-off valve, a first hand valve, a second hand valve and a bypass valve are further arranged on the loading gas-phase pipeline, the dimethyl ether tank truck is connected with the first hand valve through the loading oil filling riser gas-phase pull-off valve, the first hand valve is connected with the pressure regulating valve, the pressure regulating valve is connected with the gasification tank through the second hand valve, one end of the bypass valve is connected with a pipeline between the first hand valve and the loading oil filling riser gas-phase pull-off valve, the other end of the bypass valve is connected with a pipeline between the second hand valve and the gasification tank, and the loading oil filling riser gas-phase pressure gauge is installed between the first hand valve and the pressure regulating valve.
4. The loading system for preventing the pressure of the dimethyl ether spherical tank from being high as claimed in claim 3, wherein a third hand valve is arranged between the first hand valve and the loading oil filling riser gas-phase pulling-off valve, and a fourth hand valve is arranged between the second hand valve and the gasification tank.
5. The system of claim 1, wherein a flow meter and a loading arm liquid phase electric valve are arranged on the dimethyl ether loading liquid phase loading arm, the loading pump is connected with the dimethyl ether tank truck through the loading arm liquid phase electric valve, and the flow meter is mounted on a pipeline between the loading arm liquid phase electric valve and the loading pump.
6. The system of claim 5, wherein a loading oil filling riser liquid phase pull-off valve is further arranged on the dimethyl ether loading liquid phase oil filling riser, and the loading oil filling riser liquid phase electric valve is connected with the dimethyl ether tank truck through the loading oil filling riser liquid phase pull-off valve.
7. The system of claim 6, wherein a fifth hand valve and a sixth hand valve are arranged between the electric valve of the liquid phase of the loading arm and the loading pump, the loading pump is connected with the sixth hand valve through the fifth hand valve, the sixth hand valve is connected with the electric valve of the liquid phase of the loading arm, the flowmeter is arranged between the sixth hand valve and the electric valve of the liquid phase of the loading arm, and a seventh hand valve is arranged between the electric valve of the liquid phase of the loading arm and the liquid phase pulling-off valve of the loading arm.
8. The system for loading a dimethyl ether spherical tank, which prevents the pressure of the dimethyl ether spherical tank from being high, according to claim 1, characterized in that a spherical tank outlet regulating valve is arranged on an outlet pipeline of the dimethyl ether spherical tank, and the dimethyl ether spherical tank is connected with the loading pump through the spherical tank outlet regulating valve.
9. The system of claim 8, wherein a ball tank outlet safety instrument system valve is further arranged on the dimethyl ether ball tank outlet pipeline, and the ball tank outlet regulating valve is connected with the loading pump through the ball tank outlet safety instrument system valve.
10. The system for loading a dimethyl ether spherical tank, which is prevented from being high in pressure, according to claim 9, characterized in that the dimethyl ether spherical tank is connected with the spherical tank outlet regulating valve through an eighth hand valve, and the spherical tank outlet safety instrument system valve is connected with the loading pump through a ninth hand valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221032730.6U CN217235267U (en) | 2022-04-29 | 2022-04-29 | Loading system capable of preventing dimethyl ether spherical tank from being pressurized |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221032730.6U CN217235267U (en) | 2022-04-29 | 2022-04-29 | Loading system capable of preventing dimethyl ether spherical tank from being pressurized |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217235267U true CN217235267U (en) | 2022-08-19 |
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ID=82821340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221032730.6U Active CN217235267U (en) | 2022-04-29 | 2022-04-29 | Loading system capable of preventing dimethyl ether spherical tank from being pressurized |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217235267U (en) |
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2022
- 2022-04-29 CN CN202221032730.6U patent/CN217235267U/en active Active
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