CN204434265U - Liquid material tank car discharging protection system - Google Patents
Liquid material tank car discharging protection system Download PDFInfo
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- CN204434265U CN204434265U CN201420803557.4U CN201420803557U CN204434265U CN 204434265 U CN204434265 U CN 204434265U CN 201420803557 U CN201420803557 U CN 201420803557U CN 204434265 U CN204434265 U CN 204434265U
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- expansion tube
- tank car
- liquid material
- discharge duct
- protection system
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Abstract
The utility model discloses a kind of liquid material tank car discharging protection system, when being applied to liquid material from tank car to storage tank discharging.Comprise tank car, discharging pump and storage tank, the discharge duct that the discharge port place of tank car connects is provided with vertical, that internal diameter is greater than discharge duct internal diameter, that bottom is tapered expansion tube; The ball float that a diameter is greater than discharge duct internal diameter is provided with in described expansion tube; Connect a discharging pump by discharge duct after expansion tube, discharging pump connects storage tank by discharge duct; Be provided with the differential pressure switch be connected with the control loop of the motor of discharging pump with tapered bottom end exit above tapered bottom end after expansion tube.Gas in pipeline can be concentrated on expansion tube place by the utility model, ensures good gas-liquid separation effect, prevents gas from entering storage tank with pump and causes danger.
Description
Technical field
The utility model relates to a kind of discharging protection system, is specially a kind of liquid material tank car discharging protection system.
Background technology
When the tank car of transport liquid material as dangerous chemicals such as the bunker oil such as diesel oil, gasoline or methyl alcohol carries out discharging to storage tank, especially time to the storage tank discharging be positioned on the ground, because the liquid level in storage tank is higher than the liquid level of tank car, liquid material in storage tank does not flow in storage tank by self gravitation, therefore must adopt discharging pump that liquid fuel or dangerous chemical are transported to storage tank.In this case, when the liquid stream in tank car is complete, if do not stop discharging pump in time, can by air suction storage tank, gently so then damage discharging pump, heavy then air understand and dangerous chemical in storage tank steam thus reach explosive limits, form a large amount of explosivity or poisonous miscellaneous gas, meet naked light and can cause serious accident, jeopardize personal safety as well as the property safety.
Utility model content
The utility model is to provide a kind of liquid material tank car discharging protection system, improves dangerous material discharging safety factor, reduces the probability of occurrence of Peril Incident.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
Liquid material tank car discharging protection system, comprise and be connected to discharge duct between tank car and storage tank and discharging pump, discharge duct is connected with vertical, inner bottom conically expansion tube, in described expansion tube inner chamber, is provided with the ball float can closing expansion tube outlet that diameter is greater than the exit inside diameter of expansion tube; The differential pressure switch of the motor stalling controlling discharging pump is also provided with between the export pipeline and the inner chamber of expansion tube of expansion tube.
Further improvement of the utility model is: expansion tube is arranged on the discharge duct of discharge opening of tank truck, or expansion tube is connected directly between the below of discharge opening of tank truck.
Further improvement of the utility model is: expansion tube internal diameter is greater than the internal diameter of discharge duct.
Further improvement of the utility model is: differential pressure switch is dual redundant deploy switch.
Further improvement of the utility model is: differential pressure switch is triplex level redundancy deploy switch.
Further improvement of the utility model is: differential pressure switch is that alarming value can explosion-proof, the corrosion prevention switch of Field adjustment.
Further improvement of the utility model is: ball float and expansion tube are acid-alkali-corrosive-resisting material.
Owing to have employed technique scheme, the technological advance acquired by the utility model is:
The utility model arranges one section of expansion tube on the discharge duct of discharging pump intake, realizes gas-liquid separation, the gas in pipeline can be concentrated on expansion tube place, can ensure good gas-liquid separation effect like this, prevents gas from entering storage tank with pump and causes danger.In expansion tube, flow rate of liquid obviously reduces, and avoids the excessive buoyancy causing the resistance to flow of ball float to exceed ball float of flow velocity simultaneously, ball float blocking discharging pump intake when causing normal discharging.
Conically, when can ensure that liquid stream is complete, bead falls the entrance of cylindrical-conical nadir and pipeline, just can block pipeline in expansion tube bottom of the present utility model.
Discharge duct of the present utility model is vertically arranged, expansion tube is arranged on the discharge duct of discharge opening of tank truck, or expansion tube is connected directly between the below of discharge opening of tank truck, effectively can ensure that gas is all collected above expansion tube, ensure that gas can not enter discharging pump with liquid.
The utility model is provided with the ball float can closing expansion tube outlet that diameter is greater than expansion tube exit inside diameter in expansion tube inner chamber, after the whole discharging of liquid material completes, ball float falls, and blocks expansion tube outlet, prevent air from entering discharging pump and storage tank, and discharging pump can not be entered with liquid.
The utility model is provided with the pressure difference switch controlling the stall of discharging pump motor between the export pipeline and the inner chamber of expansion tube of expansion tube, due to will differential pressure be produced before and after the swabbing action ball float of discharging pump, before and after ball float, differential pressure switch is set, differential pressure signal before and after ball float is delivered to discharging pump motor control loop, automatically discharging pump is stopped when pressure reduction arrives alarm value, effectively can reduce the probability that discharging pump damages like this, avoid storage tank place to form a large amount of explosivity or poisonous miscellaneous gas jeopardizes safety in production.
The utility model adopts differential pressure switch that is common, dual or triplex level redundancy configuration, can apply in a flexible way in the different discharging occasion of security requirement, in the occasion that security requirement is higher, differential pressure switch that is dual or triplex level redundancy configuration can be adopted, any one differential pressure switch sends differential pressure signal, capital stops discharging pump immediately, ensures safety.The occasion not high in security requirement can adopt common configuration differential pressure switch, to save equipment cost.
The material of ball float of the present utility model and expansion tube adopts acid and alkali-resistance material, can ensure ball float and expansion tube not liquid body material corrosion, and discord liquid material generation chemical reaction.
Differential pressure switch of the present utility model is that alarming value should explosion-proof, the corrosion prevention switch of Field adjustment, can ensure discharge system long-term safety, stable, run flexibly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein: 1, tank car, 2, ball float, 3, expansion tube, 4, discharging pump, 5, motor, 6, storage tank, 7, differential pressure switch, 8, discharge duct.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further details:
Liquid material tank car discharging protection system; as shown in Figure 1; comprise and be connected to discharge duct 8 between tank car 1 and storage tank 6 and discharging pump 4; discharge duct 8 is connected with vertical expansion tube 3; the inner bottom of expansion tube 3 conically; the internal diameter of expansion tube 3 is greater than the internal diameter of discharge duct 8, and expansion tube 3 can be arranged on the discharge duct 8 of the discharge port of tank car 1, also can be arranged on the below of the discharge port of tank car 1.Be provided with a ball float 2 in expansion tube 3, ball float 2 and expansion tube 3 are acid-alkali-corrosive-resisting material, and when liquid material is corrosive liquid, native system still can normally use.Be provided with a ball float 2 in the inner chamber of expansion tube 3, the diameter of ball float 2 is greater than the internal diameter of discharge duct 8 to ensure that ball float 2 can close the outlet of expansion tube 3, and just in time falls into the conical bottom of expansion tube 3, and can not flow in discharge duct 8 with liquid.Discharge duct 8 after expansion tube 3 connects a discharging pump 4, and the discharge duct 8 after discharging pump 4 connects storage tank 6.Differential pressure switch 7 is also provided with above the conical bottom of expansion tube 3 and between the inner chamber of tapered bottom end exit and export pipeline and expansion tube 3, differential pressure switch 7 is connected with the control loop of the motor 5 of discharging pump 4, differential pressure switch 7 can control the stall of the motor 5 of discharging pump 4, differential pressure signal before and after ball float 2 is delivered to the control loop of the motor 5 of discharging pump 4 by differential pressure switch 7, when pressure reduction reaches the alarming value of setting, differential pressure switch 7 automatically can send signal and stop discharging pump 4, the alarming value of differential pressure switch 7 can Field adjustment, easy to use, and differential pressure switch 7 is explosion-proof, anti-corrosion switch, to ensure the safe operation of system.Differential pressure switch 7 can be common configuration switch, also can be dual redundant deploy switch, it can also be triplex level redundancy deploy switch, be applied to the occasion that safety standard requirement is different respectively, when the switch that differential pressure switch 7 adopts dual redundant to configure, the pressure detector in pressure difference switch is two, when one of them breaks down, another one can normal operation, ensures normally carrying out of discharge system.When the switch that differential pressure switch 7 adopts triplex level redundancy to configure, if one of them or two differential pressure detectors break down time, system still can normally be run.
Claims (7)
1. liquid material tank car discharging protection system, comprise and be connected to discharge duct (8) between tank car (1) and storage tank (6) and discharging pump (4), it is characterized in that: on discharge duct (8), be connected with vertical, inner bottom conically expansion tube (3), what be provided with in described expansion tube (3) inner chamber that diameter is greater than the exit inside diameter of expansion tube (3) can close the ball float (2) that expansion tube (3) exports; The differential pressure switch (7) of motor (5) stall controlling discharging pump (4) is also provided with between the export pipeline and the inner chamber of expansion tube (3) of expansion tube (3).
2. liquid material tank car discharging protection system according to claim 1, is characterized in that: expansion tube (3) is arranged on the discharge duct (8) of tank car (1) discharge port, or expansion tube (3) is connected directly between the below of tank car (1) discharge port.
3. liquid material tank car discharging protection system according to claim 1, is characterized in that: expansion tube (3) internal diameter is greater than the internal diameter of discharge duct (8).
4. liquid material tank car discharging protection system according to claim 1, is characterized in that: differential pressure switch (7) is dual redundant deploy switch.
5. liquid material tank car discharging protection system according to claim 1, is characterized in that: differential pressure switch (7) is triplex level redundancy deploy switch.
6. the liquid material tank car discharging protection system according to any one of claim 1,4 or 5, is characterized in that: differential pressure switch (7) for alarming value can explosion-proof, the corrosion prevention switch of Field adjustment.
7. liquid material tank car discharging protection system according to claim 1, is characterized in that: ball float (2) and expansion tube (3) are acid-alkali-corrosive-resisting material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803557.4U CN204434265U (en) | 2014-12-18 | 2014-12-18 | Liquid material tank car discharging protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803557.4U CN204434265U (en) | 2014-12-18 | 2014-12-18 | Liquid material tank car discharging protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204434265U true CN204434265U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420803557.4U Active CN204434265U (en) | 2014-12-18 | 2014-12-18 | Liquid material tank car discharging protection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204434265U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775649A (en) * | 2019-01-24 | 2019-05-21 | 东莞市永强汽车制造有限公司 | A kind of tank truck discharge pipe system with absorption surge pressure |
| CN112628604A (en) * | 2020-09-08 | 2021-04-09 | 中石化宁波工程有限公司 | Multifunctional liquefied hydrocarbon spherical tank system and control method |
| CN116119207A (en) * | 2022-12-29 | 2023-05-16 | 姚万龙 | Environment-friendly oil tank waste gas collection type discharging device |
-
2014
- 2014-12-18 CN CN201420803557.4U patent/CN204434265U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109775649A (en) * | 2019-01-24 | 2019-05-21 | 东莞市永强汽车制造有限公司 | A kind of tank truck discharge pipe system with absorption surge pressure |
| CN112628604A (en) * | 2020-09-08 | 2021-04-09 | 中石化宁波工程有限公司 | Multifunctional liquefied hydrocarbon spherical tank system and control method |
| CN116119207A (en) * | 2022-12-29 | 2023-05-16 | 姚万龙 | Environment-friendly oil tank waste gas collection type discharging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee after: China Electric Power Construction Group Hebei electric survey and Design Research Institute Co., Ltd. Address before: 050031 No. 6 Jianbei Street, Chang'an District, Shijiazhuang City, Hebei Province Patentee before: Hebei Province Power Surveying Design & Research Institute |
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| CP01 | Change in the name or title of a patent holder |