CN105501733A - Automatic dewatering device of oil storage tank and application method of automatic dewatering device - Google Patents

Automatic dewatering device of oil storage tank and application method of automatic dewatering device Download PDF

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Publication number
CN105501733A
CN105501733A CN201610062324.7A CN201610062324A CN105501733A CN 105501733 A CN105501733 A CN 105501733A CN 201610062324 A CN201610062324 A CN 201610062324A CN 105501733 A CN105501733 A CN 105501733A
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CN
China
Prior art keywords
oil
tank
drain hose
valve
dewatering device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610062324.7A
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Chinese (zh)
Other versions
CN105501733B (en
Inventor
喻九阳
高海
徐建民
郑小涛
林纬
王成刚
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WUHAN JEHOO TECHNOLOGY Co Ltd
Wuhan Institute of Technology
Original Assignee
WUHAN JEHOO TECHNOLOGY Co Ltd
Wuhan Institute of Technology
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Application filed by WUHAN JEHOO TECHNOLOGY Co Ltd, Wuhan Institute of Technology filed Critical WUHAN JEHOO TECHNOLOGY Co Ltd
Priority to CN201610062324.7A priority Critical patent/CN105501733B/en
Publication of CN105501733A publication Critical patent/CN105501733A/en
Application granted granted Critical
Publication of CN105501733B publication Critical patent/CN105501733B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00Component parts, details or accessories for large containers
    • B65D90/48Arrangements of indicating or measuring devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00Large containers
    • B65D88/54Large containers characterised by means facilitating filling or emptying

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

The invention relates to an automatic dewatering device of an oil storage tank and an application method of the automatic dewatering device. The device comprises a differential pressure gauge and a sealed tank body, wherein the tank body is internally provided with a floating ball with the density between densities of oil and water and a tapered groove is formed in the bottom of the tank body; the bottom of the floating ball can be completely matched with the tapered groove; the bottom of the tapered groove is communicated with a water drainage pipe; the top of the tank body is communicated with an oil inlet pipe and an oil returning pipe respectively; valves are arranged on the water drainage pipe, the oil inlet pipe and the oil returning pipe respectively; a flow meter is arranged on each of the water drainage pipe and the oil inlet pipe; and two measuring ends of the differential pressure gauge are located in the tank body and the water drainage pipe respectively. The device has good reliability, accuracy in dewatering and low cost.

Description

Automatic dewatering device of oil tank and using method thereof
Technical field
The invention belongs to petrol storage tank dehydration technique field, be specifically related to a kind of automatic dewatering device of oil tank and using method thereof.
Background technology
More or less can there is a certain amount of water in petrol storage tank, therefore petrol storage tank needs to carry out dehydrating operations before fuel-displaced, and current petrol storage tank has three kinds of dewaterings:
(1) valve on drain hose is opened, valve-off---the method working strength is large, efficiency is low immediately when there is fluid for the liquid of manual observation discharge, the pernicious gas of oil product moderate stimulation can endanger the healthy of operating personal, dewatering, whether oil-containing is difficult to monitoring, easily cause dehydration oil leak accident, cause environmental pollution.
(2) ball float and transmission device are set in tank body, ball float is connected with water discharging valve by transmission device, in tank body, the lifting of oil-water interface drives ball float lifting, the take off and landing strip movable valve of ball float opens and closes, by opening and closing for several times repeatedly, reach dehydrating effect---there is following problem in the method, a) transmission device is in tank interior, not only installs difficulty but also easily damaged by profit; B) do not have aqueous ingredients feedback mechanism, dehydration is not accurate, and easy leakage of oil or dehydration are not.
(3) analyzer of water content is set in tank interior, analyzer of water content can record aqueous ingredients, open water discharging valve, when recording aqueous ingredients and being zero, closedown water discharging valve---the method can accurately be dewatered, but because finished oil kind is single, profit density difference is comparatively large, the analyzer of water content price of employing is higher, if each petrol storage tank arranges an analyzer of water content, cost can be very large.
Summary of the invention
The object of this invention is to provide a kind of automatic dewatering device of oil tank and using method thereof, this device reliability is good, and accurately, cost is low in dehydration.
The technical solution adopted in the present invention is:
A kind of automatic dewatering device of oil tank, comprise the tank body of pressure differential indicator and sealing, tank interior is provided with the ball float of density between oil and water, bottom is provided with cone tank, can fit completely with cone tank bottom ball float, drain hose is communicated with bottom cone tank, tank body top is communicated with oil inlet and oil return pipe respectively, drain hose, oil inlet and oil return pipe are respectively equipped with valve, drain hose and oil inlet are also respectively equipped with flow counter, and two measuring junctions of pressure differential indicator lay respectively at tank interior and drain hose is inner.
Further, be communicated with between oil return pipe and drain hose by breather pipe, breather pipe is provided with valve.
Further, tank base is provided with two cone tanks side by side, and each cone tank is provided with the ball float coordinated with it, and two cone tanks are communicated with same drain hose.
Further, tank interior is provided with a vertical current plate, and current plate is between two cone tanks, and current plate is provided with several circular holes.
Further, oil inlet is located at the both sides at tank body top respectively, and oil return pipe is located at the end face of tank body.
Based on a using method for above-mentioned automatic dewatering device of oil tank, the steps include:
When the finished oil in tank body needs dehydration, open oil inlet valve, the shut point of oil inlet valve is determined according to oil inlet flow counter registration, after oil inlet valve closing, when pressure differential indicator registration is stablized, profit gravity settling separation completes, oil-water interface settle out, open breather pipe valve and drain hose valve successively, when drain hose flow counter registration is zero, drain hose seals by ball float, dehydration terminates, close drain hose valve and breather pipe valve successively, then oil return pipe valve is opened, when pressure differential indicator registration is zero, the finished oil dewatered all is pumped out, close oil return pipe valve.
The invention has the beneficial effects as follows:
1. this device does not arrange transmission device in tank interior, whether realized the keying of sluicing valve by the laminating of ball float and cone tank, when profit layering, ball float rises to oil-water interface place, the water of lower floor enters drain hose by cone tank, now oil-water interface decline, and when the ball float being in oil-water interface place gets back to cone tank, namely drain hose is sealed, dehydration terminates, namely upper strata finished oil cannot enter drain hose, avoids the generation of oil leak accident, good reliability; When ball float and cone tank are fitted, drain hose flow counter registration is zero, namely oil-water interface are represented on earth, dehydration completes, the stable oil-water interface that reacted of pressure differential indicator registration are stablized, pressure differential indicator registration is zero reacted the finished oil dewatered and all pumped, and replaces expensive analyzer of water content by pressure differential indicator and flow counter, not only dehydration accurately and also cost low.
2. the object arranging breather pipe is that after when preventing dehydration, tank body internal pressure causes oil separation lower than barometric pressure, water cannot emptying.
3. two groups of cone tanks and ball float are set, are namely exactly that two dehydration passages are set, are conducive to improving dewatering efficiency.
4. cause two ball float dislocation when current plate prevents profit from entering tank body, avoid oil leak accident, current plate also serves the effect of rectification, achieves the fast hierarchical of profit, is conducive to improving dewatering efficiency.
5. arrange two oil inlets, improve oil-feed efficiency, be located at both sides, not only avoided vertical impact and caused liquid level chaotic but also serve the effect of mutual containing, oil return pipe is located at end face and extracts from the top layer of fluid, ensure that oily taste.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention.
Fig. 2 is the cutaway view of tank body in the embodiment of the present invention.
In figure: 1-tank body; 2-pressure differential indicator; 3-oil inlet flow counter; 4-oil inlet valve; 5-oil return pipe valve; 6-breather pipe valve; 7-drain hose valve; 8-oil inlet; 9-oil return pipe; 10-breather pipe; 11-drain hose; 12-drain hose flow counter; 13-current plate; 14-ball float; 15-cone tank.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of automatic dewatering device of oil tank, comprise the tank body 1 of pressure differential indicator 2 and sealing, tank body 1 inside is provided with the ball float 14 of density between oil and water, bottom is provided with cone tank 15, can fit completely with cone tank 15 bottom ball float 14, drain hose 11 is communicated with bottom cone tank 15, tank body 1 top is communicated with oil inlet 8 and oil return pipe 9 respectively, drain hose 11, oil inlet 8 and oil return pipe 9 are respectively equipped with valve and (are respectively 7, 4, 5), drain hose 11 and oil inlet 8 are also respectively equipped with flow counter and (are respectively 12, 3), two measuring junctions of pressure differential indicator 2 lay respectively at tank body 1 inside and drain hose 11 inside.
This device does not arrange transmission device in tank body 1 inside, whether realized the keying of sluicing valve by ball float 14 and the laminating of cone tank 15, when profit layering, ball float 14 rises to oil-water interface place, the water of lower floor enters drain hose 11 by cone tank 15, now oil-water interface decline, and when the ball float 14 being in oil-water interface place gets back to cone tank 15, namely drain hose 11 is sealed, dehydration terminates, namely upper strata finished oil cannot enter drain hose 11, avoids the generation of oil leak accident, good reliability; When ball float 14 is fitted with cone tank 15, drain hose flow counter 12 registration is zero, namely oil-water interface are represented on earth, dehydration completes, the stable oil-water interface that reacted of pressure differential indicator 2 registration are stablized, pressure differential indicator 2 registration is zero reacted the finished oil dewatered and all pumped, and replaces expensive analyzer of water content by pressure differential indicator 2 and flow counter, not only dehydration accurately and also cost low.
As shown in Figure 1, in the present embodiment, be communicated with between oil return pipe 9 and drain hose 11 by breather pipe 10, breather pipe 10 is provided with valve 6.The object arranging breather pipe 10 is that after when preventing dehydration, tank body 1 internal pressure causes oil separation lower than barometric pressure, water cannot emptying.
As shown in Figure 2, in the present embodiment, be provided with two cone tanks 15 side by side bottom tank body 1, each cone tank 15 is provided with ball float 14, two cone tanks 15 coordinated with it and is communicated with same drain hose 11.Two groups of cone tanks 15 and ball float 14 are set, are namely exactly that two dehydration passages are set, are conducive to improving dewatering efficiency.
As shown in Figure 2, in the present embodiment, tank body 1 inside is provided with a vertical current plate 13, and current plate 13 is between two cone tanks 15, and current plate 13 is provided with several circular holes.Current plate 13 causes two ball floats 14 to misplace when preventing profit from entering tank body 1, avoid oil leak accident, current plate 13 also serves the effect of rectification, achieves the fast hierarchical of profit, is conducive to improving dewatering efficiency.
As depicted in figs. 1 and 2, in the present embodiment, oil inlet 8 is located at the both sides at tank body 1 top respectively, and oil return pipe 9 is located at the end face of tank body 1.Arrange two oil inlets 8, improve oil-feed efficiency, be located at both sides, not only avoided vertical impact and caused liquid level chaotic but also serve the effect of mutual containing, oil return pipe 9 is located at end face and extracts from the top layer of fluid, ensure that oily taste.
The algorithm of the embodiment of the present invention is:
When the finished oil in tank body 1 needs dehydration, open oil inlet valve 4, the shut point of oil inlet valve 4 is determined according to oil inlet flow counter 3 registration, after oil inlet valve 4 is closed, when pressure differential indicator 2 registration is stablized, profit gravity settling separation completes, oil-water interface settle out, open breather pipe valve 6 and drain hose valve 7 successively, when drain hose flow counter 12 registration is zero, drain hose 11 seals by ball float 14, dehydration terminates, close drain hose valve 7 and breather pipe valve 6 successively, then oil return pipe valve 5 is opened, when pressure differential indicator 2 registration is zero, the finished oil dewatered all is pumped out, close oil return pipe valve 5.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.

Claims (6)

1. an automatic dewatering device of oil tank, it is characterized in that: the tank body comprising pressure differential indicator and sealing, tank interior is provided with the ball float of density between oil and water, bottom is provided with cone tank, can fit completely with cone tank bottom ball float, drain hose is communicated with bottom cone tank, tank body top is communicated with oil inlet and oil return pipe respectively, drain hose, oil inlet and oil return pipe are respectively equipped with valve, drain hose and oil inlet are also respectively equipped with flow counter, and two measuring junctions of pressure differential indicator lay respectively at tank interior and drain hose is inner.
2. automatic dewatering device of oil tank as claimed in claim 1, it is characterized in that: be communicated with by breather pipe between oil return pipe and drain hose, breather pipe is provided with valve.
3. automatic dewatering device of oil tank as claimed in claim 1, it is characterized in that: tank base is provided with two cone tanks side by side, and each cone tank is provided with the ball float coordinated with it, two cone tanks are communicated with same drain hose.
4. automatic dewatering device of oil tank as claimed in claim 3, it is characterized in that: tank interior is provided with a vertical current plate, current plate is between two cone tanks, and current plate is provided with several circular holes.
5. automatic dewatering device of oil tank as claimed in claim 1, it is characterized in that: oil inlet is located at the both sides at tank body top respectively, oil return pipe is located at the end face of tank body.
6. the using method based on above-mentioned automatic dewatering device of oil tank, it is characterized in that: comprise the steps, when the finished oil in tank body needs dehydration, open oil inlet valve, the shut point of oil inlet valve is determined according to oil inlet flow counter registration, after oil inlet valve closing, when pressure differential indicator registration is stablized, profit gravity settling separation completes, oil-water interface settle out, open breather pipe valve and drain hose valve successively, when drain hose flow counter registration is zero, drain hose seals by ball float, dehydration terminates, close drain hose valve and breather pipe valve successively, then oil return pipe valve is opened, when pressure differential indicator registration is zero, the finished oil dewatered all is pumped out, close oil return pipe valve.
CN201610062324.7A 2016-01-29 2016-01-29 The application method of automatic dewatering device of oil tank Expired - Fee Related CN105501733B (en)

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CN105501733B CN105501733B (en) 2018-05-01

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108342218A (en) * 2018-01-20 2018-07-31 盘锦北方沥青股份有限公司 A kind of petroleum substance automatic dehydration system
CN109078361A (en) * 2018-10-25 2018-12-25 中国建材国际工程集团有限公司 A kind of density is greater than the oil dehydrator of water
CN112569638A (en) * 2019-09-28 2021-03-30 成都市赛沃德意环保科技有限公司 Oil-water separation storage device with gravity sensor
CN115323132A (en) * 2022-10-12 2022-11-11 南通航远机械设备有限公司 Heat treatment device for high-strength wire steel processing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2385160Y (en) * 1999-07-21 2000-06-28 吉林化学工业股份有限公司炼油厂 Buoyancy automatic water separating valve
CN2398233Y (en) * 1999-11-06 2000-09-27 巴陵石化长岭炼油化工总厂 Automatic dewaterer for storage tank
CN2562835Y (en) * 2002-02-04 2003-07-30 张守政 Pressure reducing self suction type gas float oil and water separator
US20120152950A1 (en) * 2010-12-16 2012-06-21 Saudi Arabian Oil Company Buoyant plug for emergency drain in floating roof tank
CN102828869A (en) * 2012-09-24 2012-12-19 柳工常州挖掘机有限公司 Diesel oil box with water discharging device
CN203741017U (en) * 2014-02-23 2014-07-30 江俞 Oil-water storage tank self-drainage regulating and controlling device
CN205381590U (en) * 2016-01-29 2016-07-13 武汉工程大学 Automatic dewatering device of oil storage tank

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2385160Y (en) * 1999-07-21 2000-06-28 吉林化学工业股份有限公司炼油厂 Buoyancy automatic water separating valve
CN2398233Y (en) * 1999-11-06 2000-09-27 巴陵石化长岭炼油化工总厂 Automatic dewaterer for storage tank
CN2562835Y (en) * 2002-02-04 2003-07-30 张守政 Pressure reducing self suction type gas float oil and water separator
US20120152950A1 (en) * 2010-12-16 2012-06-21 Saudi Arabian Oil Company Buoyant plug for emergency drain in floating roof tank
CN102828869A (en) * 2012-09-24 2012-12-19 柳工常州挖掘机有限公司 Diesel oil box with water discharging device
CN203741017U (en) * 2014-02-23 2014-07-30 江俞 Oil-water storage tank self-drainage regulating and controlling device
CN205381590U (en) * 2016-01-29 2016-07-13 武汉工程大学 Automatic dewatering device of oil storage tank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108342218A (en) * 2018-01-20 2018-07-31 盘锦北方沥青股份有限公司 A kind of petroleum substance automatic dehydration system
CN109078361A (en) * 2018-10-25 2018-12-25 中国建材国际工程集团有限公司 A kind of density is greater than the oil dehydrator of water
CN112569638A (en) * 2019-09-28 2021-03-30 成都市赛沃德意环保科技有限公司 Oil-water separation storage device with gravity sensor
CN115323132A (en) * 2022-10-12 2022-11-11 南通航远机械设备有限公司 Heat treatment device for high-strength wire steel processing

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