CN210885284U - Combustible gas monitoring alarm and emergency shutdown system for oil storage tank - Google Patents
Combustible gas monitoring alarm and emergency shutdown system for oil storage tank Download PDFInfo
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- CN210885284U CN210885284U CN201921100667.3U CN201921100667U CN210885284U CN 210885284 U CN210885284 U CN 210885284U CN 201921100667 U CN201921100667 U CN 201921100667U CN 210885284 U CN210885284 U CN 210885284U
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Abstract
The utility model discloses an oil storage tank combustible gas monitoring is reported to police and emergency shutdown system, including oil detection zone and a plurality of oil storage tank, all be equipped with emergency shutdown valve on advancing oil pipe and going out oil pipe of oil storage tank, the outside of oil storage tank is equipped with a plurality of petrol detection alarms and diesel oil detection alarm, and the oil detection zone is equipped with a plurality of oxygen detection alarms and hydrogen detection alarm, through these alarms real-time supervision air in combustible gas's concentration. When the concentration of the combustible gas reaches or exceeds an alarm threshold value, an alarm is triggered to give an alarm, the controller controls the emergency shut-off valve to be closed simultaneously, oil inlet or oil discharge operation of the oil storage tank is stopped, an arc-shaped groove is formed in the valve rod of the emergency shut-off valve, a shifting piece is arranged close to the arc-shaped groove, the position of the valve rod can be locked by the shifting piece when the emergency shut-off valve is closed, manual reset is needed when the emergency shut-off valve is re-opened, the emergency shut-off valve can be prevented from being opened accidentally, safety is improved, the device can be rapidly disposed, and.
Description
Technical Field
The utility model belongs to the technical field of the chemical industry, concretely relates to oil storage tank combustible gas monitoring is reported to police and emergency shutdown system.
Background
Be equipped with numerous oil storage tanks in chemical enterprise's factory for store finished product petrol or diesel oil, because the oil storage tank is blown by the wind and drenches outdoor long-year, the jar body inevitably can appear ageing, break, the scheduling problem corrodes, some tiny crackles can appear in the jar body after ageing, gasoline or diesel oil in the jar result in revealing, in addition because reasons such as defeated oil pipe line joint is not hard up or the valve is ageing all probably lead to the fuel to reveal, the fuel of revealing volatilizees to in the air, if meet naked light fire and probably cause big fire or even explosion, bring very big potential safety hazard, seriously threaten factory equipment and personnel's safety.
In addition for detecting the quality of finished product oil, the factory interior generally still is equipped with the oil detection zone, and the defeated oil pipe of oil accessible in the oil storage tank is carried to the oil detection zone and is carried out the oil detection experiment, and the gas holder that is used for doing the oxygen and the hydrogen of experiment is generally all placed to the oil detection zone, because oxygen and hydrogen belong to easily fire explosive gas, if oxygen or hydrogen reveal in the oil detection zone, can bring serious potential safety hazard.
In the production process, oil can be injected into the oil storage tank or oil can be discharged outwards frequently, if oil leakage and other accidents happen, oil injection or oil discharge needs to be stopped at the first time, and if the oil inlet pipe and the oil outlet pipe of the oil storage tank are not closed at the first time after leakage happens, the greater accidents are likely to be caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil storage tank combustible gas monitoring is reported to police and emergency shutdown system, but the combustible gas of very first time discovery oil storage tank and oil product detection zone reveals and in time closes advancing oil pipe and play oil pipe of oil storage tank.
Therefore, the utility model adopts the following technical scheme:
the oil storage tank combustible gas monitoring alarm and emergency turn-off system comprises a controller and a plurality of oil storage tanks, wherein each oil storage tank comprises a gasoline oil storage tank and a diesel oil storage tank, a plurality of gasoline detection alarms are arranged on the gasoline oil storage tanks, a plurality of diesel oil detection alarms are arranged on the diesel oil storage tanks, and the gasoline detection alarms and the diesel oil detection alarms are in signal connection with the controller;
an oil inlet pipe and an oil outlet pipe are arranged on the oil storage tank, emergency shut-off valves are arranged on the oil inlet pipe and the oil outlet pipe, and each emergency shut-off valve sequentially comprises a valve body, a valve cover, a valve rod and an electromagnet from bottom to top; the valve cover is arranged on the valve body, the valve rod vertically penetrates through the valve cover and extends into the valve body, the bottom end of the valve rod is provided with a blocking disc, and a first spring is sleeved on the part, located between the valve cover and the blocking disc, of the valve rod; an electric control shell is arranged on the valve cover, the electromagnet comprises a coil, a static iron core and an armature, the coil is wound on the static iron core, the static iron core is fixed with the electric control shell, the armature is positioned above the static iron core and fixed with the valve rod, and the valve rod penetrates through the coil and the static iron core; two shifting pieces are arranged above the armature, the two shifting pieces are symmetrically arranged relative to the valve rod, one end of each shifting piece is hinged with the inner wall of the electric control shell, the other end of each shifting piece inclines downwards to form a free end and abuts against the valve rod, the middle part of each shifting piece is connected with a second spring, one end of each second spring is fixedly connected with the corresponding shifting piece, the other end of each second spring is connected with the side wall of the electric control shell, and the valve rod is provided with an arc-shaped groove corresponding to the corresponding shifting piece along the circumferential; the outer end of the electric control shell is provided with a power supply module, the power supply module is electrically connected with the coil, and the power supply module is electrically connected with the controller; when the emergency shut-off valve is opened, the coil is not electrified, the static iron core is separated from the armature, the shifting piece is separated from the arc-shaped groove, the arc-shaped groove is positioned above the free end of the shifting piece, and the first spring is in a natural extension state; when the emergency shut-off valve needs to be closed, the controller controls the power supply module to electrify the coil, the static iron core and the armature are attracted, the valve rod is driven to move downwards, the valve body is closed by the blocking disc, the free end of the shifting piece is clamped into the arc-shaped groove, and the first spring is in a pulled state.
Further, still include the oil detection zone, be connected with defeated oil pipe between oil detection zone and the oil storage tank, the oil detection zone is equipped with oxygen detection alarm, hydrogen detection alarm and exhaust fan, oxygen detection alarm, hydrogen detection alarm and exhaust fan and controller signal connection.
Furthermore, a push rod which is vertically arranged is fixed on the plectrum.
Further, the lower end of the blocking disc is provided with a sealing ring.
Furthermore, a fixing rod is arranged above the shifting piece, one end of the second spring is connected with the shifting piece, and the other end of the second spring is connected with the fixing rod.
Further, a protective cap is connected to the top end of the electric control shell in a threaded mode.
The beneficial effects of the utility model reside in that:
1. the utility model can monitor the combustible gas leakage condition of the oil storage tank and the oil product detection area in real time, and can alarm and close the oil inlet pipe and the oil outlet pipe of the oil storage tank automatically closed at the first time after the system detects the combustible gas leakage, the disposal is rapid, and the safety risk is reduced;
2. the utility model can accurately detect the type of the leaked combustible gas, distinguish and alarm, facilitate the searching of leakage sources by workers, shorten the disposal time and prevent the accident from expanding;
3. the poking sheet can lock the position of the valve rod after the valve is emergently turned off, and the valve must be manually reset to be opened, so that the accidental opening of the valve after the emergency turning off can be prevented, and the reliability is greatly improved;
4. the coil is uncharged when the emergency shutdown valve in the system is opened, and is charged when the emergency shutdown valve is closed, so that the energy consumption is saved, the failure rate of the coil can be reduced, and the reliability of the emergency shutdown valve is further improved.
Drawings
FIG. 1 is a control schematic diagram of the present invention;
FIG. 2 is a schematic layout of a gasoline detection alarm and a diesel detection alarm;
fig. 3 is a schematic structural view of the emergency shutdown valve of the present invention when opened;
FIG. 4 is a partial enlarged view of portion A of FIG. 3;
fig. 5 is a schematic structural view of the emergency shutdown valve of the present invention when closed;
FIG. 6 is a partial enlarged view of portion A of FIG. 5;
in the figure: 1-oil storage tank, 101-gasoline storage tank, 102-diesel oil storage tank, 2-gasoline detection alarm, 3-diesel oil detection alarm, 4-controller, 5-oxygen detection alarm, 6-hydrogen detection alarm, 7-exhaust fan, 8-valve body, 9-valve cover, 10-valve rod, 11-coil, 12-static iron core, 13-armature, 14-electric control shell, 15-power module, 16-plectrum, 17-second spring, 18-fixed rod, 19-push rod, 20-protective cap, 21-first spring, 22-blocking disk, 23-sealing ring and 24-arc groove.
Detailed Description
As shown in fig. 1 and 2, the oil storage tank combustible gas monitoring alarm and emergency shutdown system comprises a controller 4, an oil product testing area and a plurality of oil storage tanks 1, wherein each oil storage tank 1 comprises a gasoline storage tank 101 and a diesel oil storage tank 102, the oil storage tanks 1 and the oil product testing area are respectively connected through oil conveying pipelines, and the oil product testing area is mainly used for detecting the quality of fuel oil in the oil storage tanks 1. Be equipped with a plurality of petrol detection alarm 2 on the petrol oil storage tank 101, be equipped with a plurality of diesel oil detection alarm 3 on the diesel oil storage tank 102, the oil detection zone is equipped with oxygen detection alarm 5, hydrogen detection alarm 6 and exhaust fan 7, and controller 4 also locates in the oil detection zone simultaneously. The gasoline detection alarm 2, the diesel detection alarm 3, the oxygen detection alarm 5, the hydrogen detection alarm 6 and the exhaust fan 7 are in signal connection with the controller 4. Wherein, ordinary singlechip can be selected to controller 4, and explosion-proof exhaust fan needs to be chooseed for use to exhaust fan 7, starts exhaust fan 7 when preventing combustible gas from leaking and causes unexpected explosion. In addition, the oil product detection area still is equipped with the LCD display screen, can show the combustible gas concentration value that each detector detected in real time.
As shown in fig. 3 to 6, emergency shut-off valves are respectively arranged on the oil inlet pipe and the oil outlet pipe of the oil storage tank 1, and each emergency shut-off valve sequentially comprises a valve body 8, a valve cover 9, a valve rod 10 and an electromagnet from bottom to top. On valve gap 9 located valve body 8, valve rod 10 is vertical to be passed valve gap 9 and stretch into to valve body 8 in, and the bottom of valve rod 10 is equipped with closure disc 22, and closure disc 22's lower extreme is equipped with sealing washer 23, and the part cover that valve rod 10 is located between valve gap 9 and the closure disc 22 is equipped with first spring 21, and first spring 21's upper and lower both ends are respectively in valve gap 9 lower surface, closure disc 22 upper surface fixed connection. An electric control shell 14 is arranged on the valve cover 9, and a protective cap 20 is connected to the top end of the electric control shell 14 through threads. The electromagnet comprises a coil 11, a static iron core 12 and an armature 13, wherein the coil 11 is wound on the static iron core 12, the static iron core 12 is fixed with an electric control shell 14, the armature 13 is positioned above the static iron core 12 and fixed with a valve rod 10, and the valve rod 10 penetrates through the coil 11 and the static iron core 12. The outer end of the electric control shell 14 is provided with a power supply module 15, and the power supply module 15 is electrically connected with the coil 11 and the controller 4.
Two shifting sheets 16 are arranged above the armature 13, the two shifting sheets 16 are symmetrically arranged relative to the valve rod 10, one end of each shifting sheet 16 is hinged with the inner wall of the electric control shell 14, the other end of each shifting sheet 16 inclines downwards to form a free end and abuts against the valve rod 10, and the length of each shifting sheet 16 is larger than the distance between the electric control shell 14 and the valve rod 10. The middle part of the shifting piece 16 is connected with a second spring 17, one end of the second spring 17 is fixedly connected with the shifting piece 16, the other end of the second spring 17 is connected with a fixed rod 18 fixed on the side wall of the electric control shell 14, and a vertically arranged push rod 19 is further fixed on the shifting piece 16. The valve stem 10 is provided with an arc-shaped groove 24 corresponding to the pick 16 along its circumference. When the emergency shut-off valve is opened, the coil 11 is not electrified, the static iron core 12 is separated from the armature 13, the shifting piece 16 is separated from the arc-shaped groove 24, the arc-shaped groove 24 is positioned above the free end of the shifting piece 16, and the first spring 21 is in a natural extension state; when the emergency shut-off valve needs to be closed, the controller 4 controls the power supply module 15 to electrify the coil 11, the static iron core 12 and the armature 13 attract each other and drive the valve rod 10 to move downwards, the valve body 8 is closed by the blocking disc 22, the free end of the shifting sheet 16 is clamped into the arc-shaped groove 24, and the first spring 21 is in a pulled state.
The utility model discloses in each detection alarm's model as follows:
the model of the gasoline detection alarm is RHJC-ZKRBT-FCXQ, the concentration value of gasoline volatile gas can be detected, the gasoline is volatile and explosive gas, and when the concentration of the gasoline gas on site is too high, danger is easy to occur under the condition of meeting open fire and sufficient oxygen. A plurality of gasoline detection alarms are arranged close to the gasoline storage tank and connected in parallel, and when the concentration value of the volatile gas of the gasoline is detected to reach or exceed an alarm point, the gasoline detection alarms immediately start to alarm to prompt workers that the gasoline storage tank is in a dangerous situation.
The model of the diesel oil detection alarm is of a RHJC-ZKRBT-FCXC type, a plurality of diesel oil detection alarms are arranged close to the diesel oil storage tank and connected in parallel, and when the concentration value of the volatile gas of the diesel oil is detected to reach or exceed an alarm point, the diesel oil detection alarm immediately starts to alarm to prompt a worker that the diesel oil storage tank is in danger.
The oxygen detection alarm is of an RHJC-ZKRBT-ZLGO type, and the hydrogen detection alarm is of an RHJC-ZKRBT-ZLGH type.
The working principle of the utility model is as follows:
firstly, alarm thresholds of a gasoline detection alarm 2, a diesel detection alarm 3, an oxygen detection alarm 5 and a hydrogen detection alarm 6 are respectively arranged in a controller 4. When the system detects that the concentration of various combustible gases in the air is greater than a set alarm threshold value, the corresponding alarm can be triggered to alarm, the exhaust fan 7 is started to exhaust the air outwards, the working personnel are prompted to remove dangerous situations in time, and meanwhile, the controller 4 can control the emergency shut-off valves on the oil inlet pipe and the oil outlet pipe to be closed. Effectively avoiding the occurrence of malignant accidents such as fire, explosion and the like and providing reliable guarantee for the safety of the production.
The utility model discloses the opening and the closing principle of well emergency shutdown valve as follows: under normal conditions, the emergency shut-off valves are all in an open state, and oil can be filled into the oil storage tank 1 or can be discharged outwards at any time. When the emergency shut-off valve is in an open state, the structure is shown in fig. 2: at this time, the coil 11 is de-energized, the static iron core 12 and the armature 13 are in a separated state, and the first spring 21 is in a natural contraction state. When the liquid level in the oil storage tank 1 is abnormal and the valve needs to be closed urgently, the controller 4 controls the power supply module 15 to supply power to the coil 11, after the coil 11 is electrified, the armature 13 moves downwards and is adsorbed to the static iron core 12, when the armature 13 moves downwards, the valve rod 10 is driven to move downwards, the blocking disc 22 closes the valve, and at the moment, the first spring 21 is in a pulled state. Meanwhile, when the valve rod 10 moves downwards and the valve is closed, the free end of the shifting sheet 16 is just clamped into the arc-shaped groove 24 of the valve rod 10, and because the shifting sheet 16 is arranged in a downward inclined mode and the length of the shifting sheet 16 is greater than the distance between the valve rod 10 and the electric control shell 14, the valve rod 10 cannot move upwards after the shifting sheet 16 is clamped into the arc-shaped groove 24 of the valve rod 10, so that the valve rod 10 is locked, and the valve is always in a closed state.
When the emergency shutdown valve needs to be opened again after the fault is eliminated, the controller 4 controls the power supply module 15 to lose power, at this time, the coil 11 loses power, but the valve rod 10 is in a locking state under the action of the shifting piece 16, the valve is still in a closing state, and the valve needs to be opened manually. Firstly, the protective cap 20 at the top of the electronic control housing 14 is unscrewed, then the push rod 19 is pressed downwards, so that the poking piece 16 rotates downwards around the hinged point thereof, the poking piece 16 can be separated from the arc-shaped groove 24 of the valve rod 10 after rotating for a certain angle, then the valve rod 10 can be driven to move upwards under the action of the first spring 21, the valve is restored to the open state, and then the protective cap 20 is installed again.
It should be noted that the above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (6)
1. The oil storage tank combustible gas monitoring alarm and emergency shutdown system is characterized by comprising a controller (4) and a plurality of oil storage tanks (1), wherein each oil storage tank (1) comprises a gasoline storage tank (101) and a diesel oil storage tank (102), a plurality of gasoline detection alarms (2) are arranged on the gasoline storage tank (101), a plurality of diesel oil detection alarms (3) are arranged on the diesel oil storage tank (102), and the gasoline detection alarms (2) and the diesel oil detection alarms (3) are in signal connection with the controller (4);
an oil inlet pipe and an oil outlet pipe are arranged on the oil storage tank (1), emergency shut-off valves are arranged on the oil inlet pipe and the oil outlet pipe, and each emergency shut-off valve sequentially comprises a valve body (8), a valve cover (9), a valve rod (10) and an electromagnet from bottom to top; the valve cover (9) is arranged on the valve body (8), the valve rod (10) vertically penetrates through the valve cover (9) and extends into the valve body (8), the bottom end of the valve rod (10) is provided with a blocking disc (22), and a first spring (21) is sleeved on the part, located between the valve cover (9) and the blocking disc (22), of the valve rod (10); an electric control shell (14) is arranged on the valve cover (9), the electromagnet comprises a coil (11), a static iron core (12) and an armature (13), the coil (11) is wound on the static iron core (12), the static iron core (12) is fixed with the electric control shell (14), the armature (13) is positioned above the static iron core (12) and fixed with the valve rod (10), and the valve rod (10) penetrates through the coil (11) and the static iron core (12); two shifting pieces (16) are arranged above the armature (13), the two shifting pieces (16) are symmetrically arranged relative to the valve rod (10), one end of each shifting piece (16) is hinged with the inner wall of the electric control shell (14), the other end of each shifting piece (16) inclines downwards to form a free end and abuts against the valve rod (10), the middle part of each shifting piece (16) is connected with a second spring (17), one end of each second spring (17) is fixedly connected with the corresponding shifting piece (16), the other end of each second spring is connected with the side wall of the electric control shell (14), and the valve rod (10) is provided with an arc-shaped groove (24) corresponding to the corresponding shifting piece (16) along the circumferential; a power supply module (15) is arranged at the outer end of the electric control shell (14), the power supply module (15) is electrically connected with the coil (11), and the power supply module (15) is electrically connected with the controller (4); when the emergency shut-off valve is opened, the coil (11) is not electrified, the static iron core (12) is separated from the armature (13), the shifting piece (16) is separated from the arc-shaped groove (24), the arc-shaped groove (24) is positioned above the free end of the shifting piece (16), and the first spring (21) is in a natural extension state; when the emergency shut-off valve needs to be closed, the controller (4) controls the power supply module (15) to electrify the coil (11), the static iron core (12) and the armature (13) are attracted to drive the valve rod (10) to move downwards, the valve body (8) is closed by the blocking disc (22), the free end of the shifting sheet (16) is clamped into the arc-shaped groove (24), and the first spring (21) is in a pulled state.
2. The oil storage tank combustible gas monitoring alarm and emergency shutdown system of claim 1, characterized in that, still includes the oil detection zone, be connected with defeated oil pipe between oil detection zone and oil storage tank (1), the oil detection zone is equipped with oxygen detection alarm (5), hydrogen detection alarm (6) and exhaust fan (7), oxygen detection alarm (5), hydrogen detection alarm (6) and exhaust fan (7) and controller (4) signal connection.
3. The storage tank combustible gas monitoring, alarming and emergency shutdown system of claim 1, characterized in that a vertically arranged push rod (19) is fixed on the plectrum (16).
4. The storage tank combustible gas monitoring alarm and emergency shutdown system of claim 1, characterized in that the lower end of the closing disc (22) is provided with a sealing ring (23).
5. The combustible gas monitoring, alarming and emergency shutdown system for the oil storage tank as claimed in claim 1, characterized in that a fixing rod (18) is arranged above the shifting piece (16), and one end of the second spring (17) is connected with the shifting piece (16) and the other end is connected with the fixing rod (18).
6. The storage tank combustible gas monitoring, alarm and emergency shutdown system of claim 1, characterized in that a protective cap (20) is threadedly attached to the top end of the electrically controlled housing (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100667.3U CN210885284U (en) | 2019-07-15 | 2019-07-15 | Combustible gas monitoring alarm and emergency shutdown system for oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100667.3U CN210885284U (en) | 2019-07-15 | 2019-07-15 | Combustible gas monitoring alarm and emergency shutdown system for oil storage tank |
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| Publication Number | Publication Date |
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| CN210885284U true CN210885284U (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921100667.3U Active CN210885284U (en) | 2019-07-15 | 2019-07-15 | Combustible gas monitoring alarm and emergency shutdown system for oil storage tank |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217822A (en) * | 2021-05-07 | 2021-08-06 | 宝武清洁能源有限公司 | Gas safety shield system of hydrogenation station |
| CN113915402A (en) * | 2021-10-29 | 2022-01-11 | 昆山莱恒洁净材料有限公司 | Diaphragm seal valve |
-
2019
- 2019-07-15 CN CN201921100667.3U patent/CN210885284U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217822A (en) * | 2021-05-07 | 2021-08-06 | 宝武清洁能源有限公司 | Gas safety shield system of hydrogenation station |
| CN113915402A (en) * | 2021-10-29 | 2022-01-11 | 昆山莱恒洁净材料有限公司 | Diaphragm seal valve |
| CN113915402B (en) * | 2021-10-29 | 2024-01-30 | 昆山莱恒洁净材料有限公司 | Diaphragm sealing valve |
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